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16216333 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 | 2 | /* |
643f12db | 3 | * thinkpad_acpi.c - ThinkPad ACPI Extras |
1da177e4 | 4 | * |
78f81cc4 | 5 | * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> |
1c762ca4 | 6 | * Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br> |
78f81cc4 BD |
7 | */ |
8 | ||
0978e012 JP |
9 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
10 | ||
2801b968 | 11 | #define TPACPI_VERSION "0.26" |
6b99e356 | 12 | #define TPACPI_SYSFS_VERSION 0x030000 |
78f81cc4 BD |
13 | |
14 | /* | |
1da177e4 | 15 | * Changelog: |
4b45cc07 HMH |
16 | * 2007-10-20 changelog trimmed down |
17 | * | |
643f12db HMH |
18 | * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to |
19 | * drivers/misc. | |
f9ff43a6 HMH |
20 | * |
21 | * 2006-11-22 0.13 new maintainer | |
22 | * changelog now lives in git commit history, and will | |
23 | * not be updated further in-file. | |
837ca6dd | 24 | * |
78f81cc4 BD |
25 | * 2005-03-17 0.11 support for 600e, 770x |
26 | * thanks to Jamie Lentin <lentinj@dial.pipex.com> | |
4b45cc07 HMH |
27 | * |
28 | * 2005-01-16 0.9 use MODULE_VERSION | |
78f81cc4 BD |
29 | * thanks to Henrik Brix Andersen <brix@gentoo.org> |
30 | * fix parameter passing on module loading | |
31 | * thanks to Rusty Russell <rusty@rustcorp.com.au> | |
32 | * thanks to Jim Radford <radford@blackbean.org> | |
33 | * 2004-11-08 0.8 fix init error case, don't return from a macro | |
34 | * thanks to Chris Wright <chrisw@osdl.org> | |
1da177e4 LT |
35 | */ |
36 | ||
0c78039f HMH |
37 | #include <linux/kernel.h> |
38 | #include <linux/module.h> | |
39 | #include <linux/init.h> | |
40 | #include <linux/types.h> | |
41 | #include <linux/string.h> | |
42 | #include <linux/list.h> | |
43 | #include <linux/mutex.h> | |
73a94d86 | 44 | #include <linux/sched.h> |
7a36094d | 45 | #include <linux/sched/signal.h> |
0c78039f HMH |
46 | #include <linux/kthread.h> |
47 | #include <linux/freezer.h> | |
48 | #include <linux/delay.h> | |
5a0e3ad6 | 49 | #include <linux/slab.h> |
0c78039f HMH |
50 | #include <linux/nvram.h> |
51 | #include <linux/proc_fs.h> | |
887965e6 | 52 | #include <linux/seq_file.h> |
0c78039f HMH |
53 | #include <linux/sysfs.h> |
54 | #include <linux/backlight.h> | |
2801b968 | 55 | #include <linux/bitops.h> |
0c78039f HMH |
56 | #include <linux/fb.h> |
57 | #include <linux/platform_device.h> | |
58 | #include <linux/hwmon.h> | |
59 | #include <linux/hwmon-sysfs.h> | |
60 | #include <linux/input.h> | |
4fa6811b | 61 | #include <linux/leds.h> |
0e74dc26 | 62 | #include <linux/rfkill.h> |
0c78039f HMH |
63 | #include <linux/dmi.h> |
64 | #include <linux/jiffies.h> | |
65 | #include <linux/workqueue.h> | |
8b48463f | 66 | #include <linux/acpi.h> |
f7db839f | 67 | #include <linux/pci.h> |
2801b968 | 68 | #include <linux/power_supply.h> |
0d204c34 HMH |
69 | #include <sound/core.h> |
70 | #include <sound/control.h> | |
71 | #include <sound/initval.h> | |
7c0f6ba6 | 72 | #include <linux/uaccess.h> |
2801b968 | 73 | #include <acpi/battery.h> |
b33c6ce5 | 74 | #include <acpi/video.h> |
0c78039f HMH |
75 | |
76 | /* ThinkPad CMOS commands */ | |
77 | #define TP_CMOS_VOLUME_DOWN 0 | |
78 | #define TP_CMOS_VOLUME_UP 1 | |
79 | #define TP_CMOS_VOLUME_MUTE 2 | |
80 | #define TP_CMOS_BRIGHTNESS_UP 4 | |
81 | #define TP_CMOS_BRIGHTNESS_DOWN 5 | |
4fa6811b HMH |
82 | #define TP_CMOS_THINKLIGHT_ON 12 |
83 | #define TP_CMOS_THINKLIGHT_OFF 13 | |
0c78039f HMH |
84 | |
85 | /* NVRAM Addresses */ | |
86 | enum tp_nvram_addr { | |
87 | TP_NVRAM_ADDR_HK2 = 0x57, | |
88 | TP_NVRAM_ADDR_THINKLIGHT = 0x58, | |
89 | TP_NVRAM_ADDR_VIDEO = 0x59, | |
90 | TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, | |
91 | TP_NVRAM_ADDR_MIXER = 0x60, | |
92 | }; | |
93 | ||
94 | /* NVRAM bit masks */ | |
95 | enum { | |
96 | TP_NVRAM_MASK_HKT_THINKPAD = 0x08, | |
97 | TP_NVRAM_MASK_HKT_ZOOM = 0x20, | |
98 | TP_NVRAM_MASK_HKT_DISPLAY = 0x40, | |
99 | TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, | |
100 | TP_NVRAM_MASK_THINKLIGHT = 0x10, | |
101 | TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, | |
102 | TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, | |
103 | TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, | |
104 | TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, | |
105 | TP_NVRAM_MASK_MUTE = 0x40, | |
106 | TP_NVRAM_MASK_HKT_VOLUME = 0x80, | |
107 | TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, | |
108 | TP_NVRAM_POS_LEVEL_VOLUME = 0, | |
109 | }; | |
110 | ||
5d756db9 HMH |
111 | /* Misc NVRAM-related */ |
112 | enum { | |
113 | TP_NVRAM_LEVEL_VOLUME_MAX = 14, | |
114 | }; | |
115 | ||
b21a15f6 | 116 | /* ACPI HIDs */ |
9fbdaeb4 MI |
117 | #define TPACPI_ACPI_IBM_HKEY_HID "IBM0068" |
118 | #define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068" | |
a3c42a46 | 119 | #define TPACPI_ACPI_LENOVO_HKEY_V2_HID "LEN0268" |
437e470c | 120 | #define TPACPI_ACPI_EC_HID "PNP0C09" |
b21a15f6 HMH |
121 | |
122 | /* Input IDs */ | |
123 | #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ | |
124 | #define TPACPI_HKEY_INPUT_VERSION 0x4101 | |
125 | ||
153f8220 HMH |
126 | /* ACPI \WGSV commands */ |
127 | enum { | |
128 | TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ | |
129 | TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ | |
130 | TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ | |
131 | TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ | |
132 | }; | |
133 | ||
134 | /* TP_ACPI_WGSV_GET_STATE bits */ | |
135 | enum { | |
136 | TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ | |
137 | TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ | |
138 | TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ | |
139 | TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ | |
140 | TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ | |
141 | TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ | |
142 | TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ | |
143 | TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ | |
144 | TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ | |
145 | TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ | |
146 | }; | |
b21a15f6 | 147 | |
67bcae6e HMH |
148 | /* HKEY events */ |
149 | enum tpacpi_hkey_event_t { | |
150 | /* Hotkey-related */ | |
151 | TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ | |
152 | TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ | |
153 | TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ | |
c685e20d | 154 | TP_HKEY_EV_KBD_LIGHT = 0x1012, /* Thinklight/kbd backlight */ |
67bcae6e HMH |
155 | TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ |
156 | TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ | |
157 | TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ | |
158 | ||
159 | /* Reasons for waking up from S3/S4 */ | |
160 | TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ | |
161 | TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ | |
162 | TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ | |
163 | TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ | |
164 | TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ | |
165 | TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ | |
166 | ||
167 | /* Auto-sleep after eject request */ | |
168 | TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ | |
169 | TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ | |
170 | ||
171 | /* Misc bay events */ | |
172 | TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ | |
a50245af HMH |
173 | TP_HKEY_EV_HOTPLUG_DOCK = 0x4010, /* docked into hotplug dock |
174 | or port replicator */ | |
175 | TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011, /* undocked from hotplug | |
176 | dock or port replicator */ | |
67bcae6e HMH |
177 | |
178 | /* User-interface events */ | |
179 | TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ | |
180 | TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ | |
181 | TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ | |
182 | TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ | |
b03f4d49 L |
183 | TP_HKEY_EV_TABLET_CHANGED = 0x60c0, /* X1 Yoga (2016): |
184 | * enter/leave tablet mode | |
185 | */ | |
67bcae6e HMH |
186 | TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ |
187 | TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ | |
188 | TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ | |
189 | ||
2d43f671 HMH |
190 | /* Key-related user-interface events */ |
191 | TP_HKEY_EV_KEY_NUMLOCK = 0x6000, /* NumLock key pressed */ | |
192 | TP_HKEY_EV_KEY_FN = 0x6005, /* Fn key pressed? E420 */ | |
67ab6248 | 193 | TP_HKEY_EV_KEY_FN_ESC = 0x6060, /* Fn+Esc key pressed X240 */ |
2d43f671 | 194 | |
67bcae6e HMH |
195 | /* Thermal events */ |
196 | TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ | |
197 | TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ | |
198 | TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ | |
199 | TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ | |
6e6bc5f6 HMH |
200 | TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* windows; thermal table changed */ |
201 | TP_HKEY_EV_THM_CSM_COMPLETED = 0x6032, /* windows; thermal control set | |
202 | * command completed. Related to | |
203 | * AML DYTC */ | |
204 | TP_HKEY_EV_THM_TRANSFM_CHANGED = 0x60F0, /* windows; thermal transformation | |
205 | * changed. Related to AML GMTS */ | |
67bcae6e | 206 | |
6f62bc3e RH |
207 | /* AC-related events */ |
208 | TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */ | |
2d43f671 | 209 | |
587d8628 DR |
210 | /* Further user-interface events */ |
211 | TP_HKEY_EV_PALM_DETECTED = 0x60b0, /* palm hoveres keyboard */ | |
212 | TP_HKEY_EV_PALM_UNDETECTED = 0x60b1, /* palm removed */ | |
213 | ||
67bcae6e HMH |
214 | /* Misc */ |
215 | TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ | |
216 | }; | |
217 | ||
b21a15f6 HMH |
218 | /**************************************************************************** |
219 | * Main driver | |
220 | */ | |
221 | ||
e0c7dfe7 HMH |
222 | #define TPACPI_NAME "thinkpad" |
223 | #define TPACPI_DESC "ThinkPad ACPI Extras" | |
224 | #define TPACPI_FILE TPACPI_NAME "_acpi" | |
225 | #define TPACPI_URL "http://ibm-acpi.sf.net/" | |
226 | #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" | |
b21a15f6 | 227 | |
e0c7dfe7 HMH |
228 | #define TPACPI_PROC_DIR "ibm" |
229 | #define TPACPI_ACPI_EVENT_PREFIX "ibm" | |
230 | #define TPACPI_DRVR_NAME TPACPI_FILE | |
95e57ab2 | 231 | #define TPACPI_DRVR_SHORTNAME "tpacpi" |
e0c7dfe7 | 232 | #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" |
b21a15f6 | 233 | |
95e57ab2 | 234 | #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" |
e0e3c061 | 235 | #define TPACPI_WORKQUEUE_NAME "ktpacpid" |
95e57ab2 | 236 | |
e0c7dfe7 | 237 | #define TPACPI_MAX_ACPI_ARGS 3 |
b21a15f6 | 238 | |
7ff8d62f | 239 | /* Debugging printk groups */ |
0c78039f | 240 | #define TPACPI_DBG_ALL 0xffff |
73a94d86 | 241 | #define TPACPI_DBG_DISCLOSETASK 0x8000 |
0c78039f HMH |
242 | #define TPACPI_DBG_INIT 0x0001 |
243 | #define TPACPI_DBG_EXIT 0x0002 | |
bee4cd9b | 244 | #define TPACPI_DBG_RFKILL 0x0004 |
56e2c200 | 245 | #define TPACPI_DBG_HKEY 0x0008 |
74a60c0f | 246 | #define TPACPI_DBG_FAN 0x0010 |
0e501834 | 247 | #define TPACPI_DBG_BRGHT 0x0020 |
329e4e18 | 248 | #define TPACPI_DBG_MIXER 0x0040 |
0c78039f | 249 | |
35ff8b9f HMH |
250 | #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") |
251 | #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") | |
252 | #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) | |
0c78039f | 253 | |
0c78039f HMH |
254 | |
255 | /**************************************************************************** | |
b21a15f6 | 256 | * Driver-wide structs and misc. variables |
0c78039f HMH |
257 | */ |
258 | ||
259 | struct ibm_struct; | |
260 | ||
261 | struct tp_acpi_drv_struct { | |
262 | const struct acpi_device_id *hid; | |
263 | struct acpi_driver *driver; | |
264 | ||
265 | void (*notify) (struct ibm_struct *, u32); | |
266 | acpi_handle *handle; | |
267 | u32 type; | |
268 | struct acpi_device *device; | |
269 | }; | |
270 | ||
271 | struct ibm_struct { | |
272 | char *name; | |
273 | ||
887965e6 | 274 | int (*read) (struct seq_file *); |
0c78039f HMH |
275 | int (*write) (char *); |
276 | void (*exit) (void); | |
277 | void (*resume) (void); | |
fd3c3a42 | 278 | void (*suspend) (void); |
90d9d3c7 | 279 | void (*shutdown) (void); |
0c78039f HMH |
280 | |
281 | struct list_head all_drivers; | |
282 | ||
283 | struct tp_acpi_drv_struct *acpi; | |
284 | ||
285 | struct { | |
286 | u8 acpi_driver_registered:1; | |
287 | u8 acpi_notify_installed:1; | |
288 | u8 proc_created:1; | |
289 | u8 init_called:1; | |
290 | u8 experimental:1; | |
291 | } flags; | |
292 | }; | |
293 | ||
294 | struct ibm_init_struct { | |
295 | char param[32]; | |
296 | ||
297 | int (*init) (struct ibm_init_struct *); | |
d161a13f | 298 | umode_t base_procfs_mode; |
0c78039f HMH |
299 | struct ibm_struct *data; |
300 | }; | |
301 | ||
302 | static struct { | |
0c78039f HMH |
303 | u32 bluetooth:1; |
304 | u32 hotkey:1; | |
305 | u32 hotkey_mask:1; | |
306 | u32 hotkey_wlsw:1; | |
b3180028 L |
307 | enum { |
308 | TP_HOTKEY_TABLET_NONE = 0, | |
309 | TP_HOTKEY_TABLET_USES_MHKG, | |
dda3ec0a | 310 | TP_HOTKEY_TABLET_USES_GMMS, |
b3180028 | 311 | } hotkey_tablet; |
bb28f3d5 | 312 | u32 kbdlight:1; |
0c78039f HMH |
313 | u32 light:1; |
314 | u32 light_status:1; | |
b5972796 | 315 | u32 bright_acpimode:1; |
77775838 | 316 | u32 bright_unkfw:1; |
0c78039f | 317 | u32 wan:1; |
0045c0aa | 318 | u32 uwb:1; |
0c78039f | 319 | u32 fan_ctrl_status_undef:1; |
d7377247 | 320 | u32 second_fan:1; |
60201732 | 321 | u32 beep_needs_two_args:1; |
a112ceee | 322 | u32 mixer_no_level_control:1; |
1a32ebb2 | 323 | u32 battery_force_primary:1; |
0c78039f HMH |
324 | u32 input_device_registered:1; |
325 | u32 platform_drv_registered:1; | |
326 | u32 platform_drv_attrs_registered:1; | |
327 | u32 sensors_pdrv_registered:1; | |
328 | u32 sensors_pdrv_attrs_registered:1; | |
329 | u32 sensors_pdev_attrs_registered:1; | |
330 | u32 hotkey_poll_active:1; | |
f23a5bcb | 331 | u32 has_adaptive_kbd:1; |
0c78039f HMH |
332 | } tp_features; |
333 | ||
92889022 HMH |
334 | static struct { |
335 | u16 hotkey_mask_ff:1; | |
c7ac6291 | 336 | u16 volume_ctrl_forbidden:1; |
92889022 HMH |
337 | } tp_warned; |
338 | ||
0c78039f HMH |
339 | struct thinkpad_id_data { |
340 | unsigned int vendor; /* ThinkPad vendor: | |
341 | * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ | |
342 | ||
343 | char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ | |
344 | char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ | |
345 | ||
846a416b JW |
346 | u32 bios_model; /* 1Y = 0x3159, 0 = unknown */ |
347 | u32 ec_model; | |
348 | u16 bios_release; /* 1ZETK1WW = 0x4b31, 0 = unknown */ | |
050df107 | 349 | u16 ec_release; |
0c78039f | 350 | |
8c74adbc HMH |
351 | char *model_str; /* ThinkPad T43 */ |
352 | char *nummodel_str; /* 9384A9C for a 9384-A9C model */ | |
0c78039f | 353 | }; |
0c78039f HMH |
354 | static struct thinkpad_id_data thinkpad_id; |
355 | ||
8fef502e HMH |
356 | static enum { |
357 | TPACPI_LIFE_INIT = 0, | |
358 | TPACPI_LIFE_RUNNING, | |
359 | TPACPI_LIFE_EXITING, | |
360 | } tpacpi_lifecycle; | |
361 | ||
b21a15f6 HMH |
362 | static int experimental; |
363 | static u32 dbg_level; | |
364 | ||
e0e3c061 HMH |
365 | static struct workqueue_struct *tpacpi_wq; |
366 | ||
75bd3bf2 HMH |
367 | enum led_status_t { |
368 | TPACPI_LED_OFF = 0, | |
369 | TPACPI_LED_ON, | |
370 | TPACPI_LED_BLINK, | |
371 | }; | |
372 | ||
86ec0c2c | 373 | /* tpacpi LED class */ |
4fa6811b HMH |
374 | struct tpacpi_led_classdev { |
375 | struct led_classdev led_classdev; | |
edf2d778 | 376 | int led; |
4fa6811b HMH |
377 | }; |
378 | ||
77775838 HMH |
379 | /* brightness level capabilities */ |
380 | static unsigned int bright_maxlvl; /* 0 = unknown */ | |
381 | ||
a73f3091 HMH |
382 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
383 | static int dbg_wlswemul; | |
90ab5ee9 | 384 | static bool tpacpi_wlsw_emulstate; |
a73f3091 | 385 | static int dbg_bluetoothemul; |
90ab5ee9 | 386 | static bool tpacpi_bluetooth_emulstate; |
a73f3091 | 387 | static int dbg_wwanemul; |
90ab5ee9 | 388 | static bool tpacpi_wwan_emulstate; |
0045c0aa | 389 | static int dbg_uwbemul; |
90ab5ee9 | 390 | static bool tpacpi_uwb_emulstate; |
a73f3091 HMH |
391 | #endif |
392 | ||
393 | ||
3dcc2c3b HMH |
394 | /************************************************************************* |
395 | * Debugging helpers | |
396 | */ | |
397 | ||
0978e012 JP |
398 | #define dbg_printk(a_dbg_level, format, arg...) \ |
399 | do { \ | |
400 | if (dbg_level & (a_dbg_level)) \ | |
401 | printk(KERN_DEBUG pr_fmt("%s: " format), \ | |
402 | __func__, ##arg); \ | |
403 | } while (0) | |
3dcc2c3b HMH |
404 | |
405 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG | |
406 | #define vdbg_printk dbg_printk | |
407 | static const char *str_supported(int is_supported); | |
408 | #else | |
0978e012 JP |
409 | static inline const char *str_supported(int is_supported) { return ""; } |
410 | #define vdbg_printk(a_dbg_level, format, arg...) \ | |
efd85cf8 | 411 | do { if (0) no_printk(format, ##arg); } while (0) |
3dcc2c3b HMH |
412 | #endif |
413 | ||
73a94d86 HMH |
414 | static void tpacpi_log_usertask(const char * const what) |
415 | { | |
0978e012 JP |
416 | printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"), |
417 | what, task_tgid_vnr(current)); | |
73a94d86 HMH |
418 | } |
419 | ||
0978e012 JP |
420 | #define tpacpi_disclose_usertask(what, format, arg...) \ |
421 | do { \ | |
422 | if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \ | |
423 | (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ | |
424 | printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \ | |
425 | what, task_tgid_vnr(current), ## arg); \ | |
426 | } \ | |
427 | } while (0) | |
3dcc2c3b | 428 | |
7d95a3d5 HMH |
429 | /* |
430 | * Quirk handling helpers | |
431 | * | |
846a416b JW |
432 | * ThinkPad IDs and versions seen in the field so far are |
433 | * two or three characters from the set [0-9A-Z], i.e. base 36. | |
7d95a3d5 HMH |
434 | * |
435 | * We use values well outside that range as specials. | |
436 | */ | |
437 | ||
846a416b JW |
438 | #define TPACPI_MATCH_ANY 0xffffffffU |
439 | #define TPACPI_MATCH_ANY_VERSION 0xffffU | |
7d95a3d5 HMH |
440 | #define TPACPI_MATCH_UNKNOWN 0U |
441 | ||
846a416b JW |
442 | /* TPID('1', 'Y') == 0x3159 */ |
443 | #define TPID(__c1, __c2) (((__c1) << 8) | (__c2)) | |
444 | #define TPID3(__c1, __c2, __c3) (((__c1) << 16) | ((__c2) << 8) | (__c3)) | |
445 | #define TPVER TPID | |
7d95a3d5 HMH |
446 | |
447 | #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ | |
448 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
449 | .bios = TPID(__id1, __id2), \ | |
450 | .ec = TPACPI_MATCH_ANY, \ | |
451 | .quirks = (__quirk) } | |
452 | ||
453 | #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ | |
454 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
455 | .bios = TPID(__id1, __id2), \ | |
456 | .ec = TPACPI_MATCH_ANY, \ | |
457 | .quirks = (__quirk) } | |
458 | ||
1a32ebb2 JW |
459 | #define TPACPI_Q_LNV3(__id1, __id2, __id3, __quirk) \ |
460 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
461 | .bios = TPID3(__id1, __id2, __id3), \ | |
462 | .ec = TPACPI_MATCH_ANY, \ | |
463 | .quirks = (__quirk) } | |
464 | ||
599eefff JW |
465 | #define TPACPI_QEC_IBM(__id1, __id2, __quirk) \ |
466 | { .vendor = PCI_VENDOR_ID_IBM, \ | |
467 | .bios = TPACPI_MATCH_ANY, \ | |
468 | .ec = TPID(__id1, __id2), \ | |
469 | .quirks = (__quirk) } | |
470 | ||
a112ceee HMH |
471 | #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ |
472 | { .vendor = PCI_VENDOR_ID_LENOVO, \ | |
473 | .bios = TPACPI_MATCH_ANY, \ | |
474 | .ec = TPID(__id1, __id2), \ | |
475 | .quirks = (__quirk) } | |
476 | ||
7d95a3d5 HMH |
477 | struct tpacpi_quirk { |
478 | unsigned int vendor; | |
846a416b JW |
479 | u32 bios; |
480 | u32 ec; | |
7d95a3d5 HMH |
481 | unsigned long quirks; |
482 | }; | |
483 | ||
484 | /** | |
485 | * tpacpi_check_quirks() - search BIOS/EC version on a list | |
486 | * @qlist: array of &struct tpacpi_quirk | |
487 | * @qlist_size: number of elements in @qlist | |
488 | * | |
489 | * Iterates over a quirks list until one is found that matches the | |
490 | * ThinkPad's vendor, BIOS and EC model. | |
491 | * | |
492 | * Returns 0 if nothing matches, otherwise returns the quirks field of | |
493 | * the matching &struct tpacpi_quirk entry. | |
494 | * | |
495 | * The match criteria is: vendor, ec and bios much match. | |
496 | */ | |
497 | static unsigned long __init tpacpi_check_quirks( | |
498 | const struct tpacpi_quirk *qlist, | |
499 | unsigned int qlist_size) | |
500 | { | |
501 | while (qlist_size) { | |
502 | if ((qlist->vendor == thinkpad_id.vendor || | |
503 | qlist->vendor == TPACPI_MATCH_ANY) && | |
504 | (qlist->bios == thinkpad_id.bios_model || | |
505 | qlist->bios == TPACPI_MATCH_ANY) && | |
506 | (qlist->ec == thinkpad_id.ec_model || | |
507 | qlist->ec == TPACPI_MATCH_ANY)) | |
508 | return qlist->quirks; | |
509 | ||
510 | qlist_size--; | |
511 | qlist++; | |
512 | } | |
513 | return 0; | |
514 | } | |
515 | ||
e28393c0 HMH |
516 | static inline bool __pure __init tpacpi_is_lenovo(void) |
517 | { | |
518 | return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO; | |
519 | } | |
520 | ||
521 | static inline bool __pure __init tpacpi_is_ibm(void) | |
522 | { | |
523 | return thinkpad_id.vendor == PCI_VENDOR_ID_IBM; | |
524 | } | |
7d95a3d5 | 525 | |
56b6aeb0 HMH |
526 | /**************************************************************************** |
527 | **************************************************************************** | |
528 | * | |
529 | * ACPI Helpers and device model | |
530 | * | |
531 | **************************************************************************** | |
532 | ****************************************************************************/ | |
533 | ||
534 | /************************************************************************* | |
535 | * ACPI basic handles | |
536 | */ | |
1da177e4 | 537 | |
94954cc6 | 538 | static acpi_handle root_handle; |
437e470c | 539 | static acpi_handle ec_handle; |
1da177e4 | 540 | |
e0c7dfe7 | 541 | #define TPACPI_HANDLE(object, parent, paths...) \ |
1da177e4 | 542 | static acpi_handle object##_handle; \ |
3bd01896 | 543 | static const acpi_handle * const object##_parent __initconst = \ |
ef07a5ab HMH |
544 | &parent##_handle; \ |
545 | static char *object##_paths[] __initdata = { paths } | |
1da177e4 | 546 | |
e0c7dfe7 HMH |
547 | TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ |
548 | TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ | |
78f81cc4 | 549 | |
35ff8b9f HMH |
550 | TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ |
551 | /* T4x, X31, X40 */ | |
78f81cc4 BD |
552 | "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ |
553 | "\\CMS", /* R40, R40e */ | |
56b6aeb0 | 554 | ); /* all others */ |
78f81cc4 | 555 | |
e0c7dfe7 | 556 | TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ |
78f81cc4 BD |
557 | "^HKEY", /* R30, R31 */ |
558 | "HKEY", /* all others */ | |
56b6aeb0 | 559 | ); /* 570 */ |
78f81cc4 | 560 | |
56b6aeb0 HMH |
561 | /************************************************************************* |
562 | * ACPI helpers | |
a8b7a662 HMH |
563 | */ |
564 | ||
1da177e4 | 565 | static int acpi_evalf(acpi_handle handle, |
eceeb437 | 566 | int *res, char *method, char *fmt, ...) |
1da177e4 LT |
567 | { |
568 | char *fmt0 = fmt; | |
78f81cc4 | 569 | struct acpi_object_list params; |
e0c7dfe7 | 570 | union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; |
78f81cc4 BD |
571 | struct acpi_buffer result, *resultp; |
572 | union acpi_object out_obj; | |
573 | acpi_status status; | |
574 | va_list ap; | |
575 | char res_type; | |
576 | int success; | |
577 | int quiet; | |
1da177e4 LT |
578 | |
579 | if (!*fmt) { | |
0978e012 | 580 | pr_err("acpi_evalf() called with empty format\n"); |
1da177e4 LT |
581 | return 0; |
582 | } | |
583 | ||
584 | if (*fmt == 'q') { | |
585 | quiet = 1; | |
586 | fmt++; | |
587 | } else | |
588 | quiet = 0; | |
589 | ||
590 | res_type = *(fmt++); | |
591 | ||
592 | params.count = 0; | |
593 | params.pointer = &in_objs[0]; | |
594 | ||
595 | va_start(ap, fmt); | |
596 | while (*fmt) { | |
597 | char c = *(fmt++); | |
598 | switch (c) { | |
599 | case 'd': /* int */ | |
600 | in_objs[params.count].integer.value = va_arg(ap, int); | |
601 | in_objs[params.count++].type = ACPI_TYPE_INTEGER; | |
602 | break; | |
78f81cc4 | 603 | /* add more types as needed */ |
1da177e4 | 604 | default: |
5cac62ac AS |
605 | pr_err("acpi_evalf() called with invalid format character '%c'\n", |
606 | c); | |
21365851 | 607 | va_end(ap); |
1da177e4 LT |
608 | return 0; |
609 | } | |
610 | } | |
611 | va_end(ap); | |
612 | ||
78f81cc4 BD |
613 | if (res_type != 'v') { |
614 | result.length = sizeof(out_obj); | |
615 | result.pointer = &out_obj; | |
616 | resultp = &result; | |
617 | } else | |
618 | resultp = NULL; | |
1da177e4 | 619 | |
78f81cc4 | 620 | status = acpi_evaluate_object(handle, method, ¶ms, resultp); |
1da177e4 LT |
621 | |
622 | switch (res_type) { | |
78f81cc4 | 623 | case 'd': /* int */ |
263f4a30 HMH |
624 | success = (status == AE_OK && |
625 | out_obj.type == ACPI_TYPE_INTEGER); | |
626 | if (success && res) | |
eceeb437 | 627 | *res = out_obj.integer.value; |
1da177e4 | 628 | break; |
78f81cc4 | 629 | case 'v': /* void */ |
1da177e4 LT |
630 | success = status == AE_OK; |
631 | break; | |
78f81cc4 | 632 | /* add more types as needed */ |
1da177e4 | 633 | default: |
5cac62ac AS |
634 | pr_err("acpi_evalf() called with invalid format character '%c'\n", |
635 | res_type); | |
1da177e4 LT |
636 | return 0; |
637 | } | |
638 | ||
56b6aeb0 | 639 | if (!success && !quiet) |
0978e012 | 640 | pr_err("acpi_evalf(%s, %s, ...) failed: %s\n", |
263f4a30 | 641 | method, fmt0, acpi_format_exception(status)); |
56b6aeb0 HMH |
642 | |
643 | return success; | |
644 | } | |
645 | ||
35ff8b9f | 646 | static int acpi_ec_read(int i, u8 *p) |
56b6aeb0 HMH |
647 | { |
648 | int v; | |
649 | ||
650 | if (ecrd_handle) { | |
651 | if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) | |
652 | return 0; | |
653 | *p = v; | |
654 | } else { | |
655 | if (ec_read(i, p) < 0) | |
656 | return 0; | |
657 | } | |
658 | ||
659 | return 1; | |
660 | } | |
661 | ||
662 | static int acpi_ec_write(int i, u8 v) | |
663 | { | |
664 | if (ecwr_handle) { | |
665 | if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) | |
666 | return 0; | |
667 | } else { | |
668 | if (ec_write(i, v) < 0) | |
669 | return 0; | |
670 | } | |
671 | ||
672 | return 1; | |
673 | } | |
674 | ||
c9bea99c HMH |
675 | static int issue_thinkpad_cmos_command(int cmos_cmd) |
676 | { | |
677 | if (!cmos_handle) | |
678 | return -ENXIO; | |
679 | ||
680 | if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) | |
681 | return -EIO; | |
682 | ||
683 | return 0; | |
684 | } | |
685 | ||
56b6aeb0 HMH |
686 | /************************************************************************* |
687 | * ACPI device model | |
688 | */ | |
689 | ||
35ff8b9f HMH |
690 | #define TPACPI_ACPIHANDLE_INIT(object) \ |
691 | drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ | |
ef07a5ab | 692 | object##_paths, ARRAY_SIZE(object##_paths)) |
f74a27d4 | 693 | |
ef07a5ab HMH |
694 | static void __init drv_acpi_handle_init(const char *name, |
695 | acpi_handle *handle, const acpi_handle parent, | |
696 | char **paths, const int num_paths) | |
56b6aeb0 HMH |
697 | { |
698 | int i; | |
699 | acpi_status status; | |
700 | ||
5ae930e6 HMH |
701 | vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", |
702 | name); | |
703 | ||
56b6aeb0 HMH |
704 | for (i = 0; i < num_paths; i++) { |
705 | status = acpi_get_handle(parent, paths[i], handle); | |
706 | if (ACPI_SUCCESS(status)) { | |
5ae930e6 HMH |
707 | dbg_printk(TPACPI_DBG_INIT, |
708 | "Found ACPI handle %s for %s\n", | |
ef07a5ab | 709 | paths[i], name); |
56b6aeb0 HMH |
710 | return; |
711 | } | |
712 | } | |
713 | ||
5ae930e6 HMH |
714 | vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", |
715 | name); | |
56b6aeb0 HMH |
716 | *handle = NULL; |
717 | } | |
718 | ||
437e470c HMH |
719 | static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle, |
720 | u32 level, void *context, void **return_value) | |
721 | { | |
46445b6b AL |
722 | struct acpi_device *dev; |
723 | if (!strcmp(context, "video")) { | |
724 | if (acpi_bus_get_device(handle, &dev)) | |
725 | return AE_OK; | |
726 | if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev))) | |
727 | return AE_OK; | |
728 | } | |
729 | ||
437e470c HMH |
730 | *(acpi_handle *)return_value = handle; |
731 | ||
732 | return AE_CTRL_TERMINATE; | |
733 | } | |
734 | ||
735 | static void __init tpacpi_acpi_handle_locate(const char *name, | |
736 | const char *hid, | |
737 | acpi_handle *handle) | |
738 | { | |
739 | acpi_status status; | |
740 | acpi_handle device_found; | |
741 | ||
46445b6b | 742 | BUG_ON(!name || !handle); |
437e470c HMH |
743 | vdbg_printk(TPACPI_DBG_INIT, |
744 | "trying to locate ACPI handle for %s, using HID %s\n", | |
46445b6b | 745 | name, hid ? hid : "NULL"); |
437e470c HMH |
746 | |
747 | memset(&device_found, 0, sizeof(device_found)); | |
748 | status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback, | |
749 | (void *)name, &device_found); | |
750 | ||
751 | *handle = NULL; | |
752 | ||
753 | if (ACPI_SUCCESS(status)) { | |
754 | *handle = device_found; | |
755 | dbg_printk(TPACPI_DBG_INIT, | |
756 | "Found ACPI handle for %s\n", name); | |
757 | } else { | |
758 | vdbg_printk(TPACPI_DBG_INIT, | |
759 | "Could not locate an ACPI handle for %s: %s\n", | |
760 | name, acpi_format_exception(status)); | |
761 | } | |
762 | } | |
763 | ||
8d376cd6 | 764 | static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) |
56b6aeb0 HMH |
765 | { |
766 | struct ibm_struct *ibm = data; | |
767 | ||
8fef502e HMH |
768 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
769 | return; | |
770 | ||
8d376cd6 | 771 | if (!ibm || !ibm->acpi || !ibm->acpi->notify) |
56b6aeb0 HMH |
772 | return; |
773 | ||
8d376cd6 | 774 | ibm->acpi->notify(ibm, event); |
56b6aeb0 HMH |
775 | } |
776 | ||
8d376cd6 | 777 | static int __init setup_acpi_notify(struct ibm_struct *ibm) |
56b6aeb0 HMH |
778 | { |
779 | acpi_status status; | |
5ae930e6 | 780 | int rc; |
56b6aeb0 | 781 | |
8d376cd6 HMH |
782 | BUG_ON(!ibm->acpi); |
783 | ||
784 | if (!*ibm->acpi->handle) | |
56b6aeb0 HMH |
785 | return 0; |
786 | ||
5ae930e6 | 787 | vdbg_printk(TPACPI_DBG_INIT, |
fe08bc4b HMH |
788 | "setting up ACPI notify for %s\n", ibm->name); |
789 | ||
5ae930e6 HMH |
790 | rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); |
791 | if (rc < 0) { | |
0978e012 | 792 | pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); |
56b6aeb0 HMH |
793 | return -ENODEV; |
794 | } | |
795 | ||
db89b4f0 | 796 | ibm->acpi->device->driver_data = ibm; |
8d376cd6 | 797 | sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", |
e0c7dfe7 | 798 | TPACPI_ACPI_EVENT_PREFIX, |
643f12db | 799 | ibm->name); |
56b6aeb0 | 800 | |
8d376cd6 HMH |
801 | status = acpi_install_notify_handler(*ibm->acpi->handle, |
802 | ibm->acpi->type, dispatch_acpi_notify, ibm); | |
56b6aeb0 HMH |
803 | if (ACPI_FAILURE(status)) { |
804 | if (status == AE_ALREADY_EXISTS) { | |
5cac62ac AS |
805 | pr_notice("another device driver is already handling %s events\n", |
806 | ibm->name); | |
56b6aeb0 | 807 | } else { |
0978e012 | 808 | pr_err("acpi_install_notify_handler(%s) failed: %s\n", |
72f19921 | 809 | ibm->name, acpi_format_exception(status)); |
56b6aeb0 HMH |
810 | } |
811 | return -ENODEV; | |
812 | } | |
8d376cd6 | 813 | ibm->flags.acpi_notify_installed = 1; |
56b6aeb0 HMH |
814 | return 0; |
815 | } | |
816 | ||
8d376cd6 | 817 | static int __init tpacpi_device_add(struct acpi_device *device) |
56b6aeb0 HMH |
818 | { |
819 | return 0; | |
820 | } | |
821 | ||
6700121b | 822 | static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) |
56b6aeb0 | 823 | { |
5ae930e6 | 824 | int rc; |
56b6aeb0 | 825 | |
fe08bc4b HMH |
826 | dbg_printk(TPACPI_DBG_INIT, |
827 | "registering %s as an ACPI driver\n", ibm->name); | |
828 | ||
8d376cd6 HMH |
829 | BUG_ON(!ibm->acpi); |
830 | ||
831 | ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); | |
832 | if (!ibm->acpi->driver) { | |
0978e012 | 833 | pr_err("failed to allocate memory for ibm->acpi->driver\n"); |
5fba344c | 834 | return -ENOMEM; |
56b6aeb0 HMH |
835 | } |
836 | ||
e0c7dfe7 | 837 | sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); |
8d376cd6 | 838 | ibm->acpi->driver->ids = ibm->acpi->hid; |
1ba90e3a | 839 | |
8d376cd6 | 840 | ibm->acpi->driver->ops.add = &tpacpi_device_add; |
56b6aeb0 | 841 | |
5ae930e6 HMH |
842 | rc = acpi_bus_register_driver(ibm->acpi->driver); |
843 | if (rc < 0) { | |
0978e012 | 844 | pr_err("acpi_bus_register_driver(%s) failed: %d\n", |
1ba90e3a | 845 | ibm->name, rc); |
8d376cd6 HMH |
846 | kfree(ibm->acpi->driver); |
847 | ibm->acpi->driver = NULL; | |
5ae930e6 | 848 | } else if (!rc) |
8d376cd6 | 849 | ibm->flags.acpi_driver_registered = 1; |
56b6aeb0 | 850 | |
5ae930e6 | 851 | return rc; |
56b6aeb0 HMH |
852 | } |
853 | ||
854 | ||
855 | /**************************************************************************** | |
856 | **************************************************************************** | |
857 | * | |
858 | * Procfs Helpers | |
859 | * | |
860 | **************************************************************************** | |
861 | ****************************************************************************/ | |
862 | ||
887965e6 | 863 | static int dispatch_proc_show(struct seq_file *m, void *v) |
56b6aeb0 | 864 | { |
887965e6 | 865 | struct ibm_struct *ibm = m->private; |
56b6aeb0 HMH |
866 | |
867 | if (!ibm || !ibm->read) | |
868 | return -EINVAL; | |
887965e6 AD |
869 | return ibm->read(m); |
870 | } | |
56b6aeb0 | 871 | |
887965e6 AD |
872 | static int dispatch_proc_open(struct inode *inode, struct file *file) |
873 | { | |
d9dda78b | 874 | return single_open(file, dispatch_proc_show, PDE_DATA(inode)); |
56b6aeb0 HMH |
875 | } |
876 | ||
887965e6 | 877 | static ssize_t dispatch_proc_write(struct file *file, |
35ff8b9f | 878 | const char __user *userbuf, |
887965e6 | 879 | size_t count, loff_t *pos) |
56b6aeb0 | 880 | { |
d9dda78b | 881 | struct ibm_struct *ibm = PDE_DATA(file_inode(file)); |
56b6aeb0 HMH |
882 | char *kernbuf; |
883 | int ret; | |
884 | ||
885 | if (!ibm || !ibm->write) | |
886 | return -EINVAL; | |
5b05d469 MB |
887 | if (count > PAGE_SIZE - 2) |
888 | return -EINVAL; | |
56b6aeb0 HMH |
889 | |
890 | kernbuf = kmalloc(count + 2, GFP_KERNEL); | |
891 | if (!kernbuf) | |
892 | return -ENOMEM; | |
1da177e4 | 893 | |
56b6aeb0 HMH |
894 | if (copy_from_user(kernbuf, userbuf, count)) { |
895 | kfree(kernbuf); | |
896 | return -EFAULT; | |
897 | } | |
1da177e4 | 898 | |
56b6aeb0 HMH |
899 | kernbuf[count] = 0; |
900 | strcat(kernbuf, ","); | |
901 | ret = ibm->write(kernbuf); | |
902 | if (ret == 0) | |
903 | ret = count; | |
1da177e4 | 904 | |
56b6aeb0 HMH |
905 | kfree(kernbuf); |
906 | ||
907 | return ret; | |
1da177e4 LT |
908 | } |
909 | ||
97a32539 AD |
910 | static const struct proc_ops dispatch_proc_ops = { |
911 | .proc_open = dispatch_proc_open, | |
912 | .proc_read = seq_read, | |
913 | .proc_lseek = seq_lseek, | |
914 | .proc_release = single_release, | |
915 | .proc_write = dispatch_proc_write, | |
887965e6 AD |
916 | }; |
917 | ||
1da177e4 LT |
918 | static char *next_cmd(char **cmds) |
919 | { | |
920 | char *start = *cmds; | |
921 | char *end; | |
922 | ||
923 | while ((end = strchr(start, ',')) && end == start) | |
924 | start = end + 1; | |
925 | ||
926 | if (!end) | |
927 | return NULL; | |
928 | ||
929 | *end = 0; | |
930 | *cmds = end + 1; | |
931 | return start; | |
932 | } | |
933 | ||
56b6aeb0 | 934 | |
54ae1501 HMH |
935 | /**************************************************************************** |
936 | **************************************************************************** | |
937 | * | |
7f5d1cd6 | 938 | * Device model: input, hwmon and platform |
54ae1501 HMH |
939 | * |
940 | **************************************************************************** | |
941 | ****************************************************************************/ | |
942 | ||
94954cc6 | 943 | static struct platform_device *tpacpi_pdev; |
7fd40029 | 944 | static struct platform_device *tpacpi_sensors_pdev; |
1beeffe4 | 945 | static struct device *tpacpi_hwmon; |
7f5d1cd6 | 946 | static struct input_dev *tpacpi_inputdev; |
8523ed6f | 947 | static struct mutex tpacpi_inputdev_send_mutex; |
b21a15f6 | 948 | static LIST_HEAD(tpacpi_all_drivers); |
e295e850 | 949 | |
3567a4e2 | 950 | #ifdef CONFIG_PM_SLEEP |
4959a781 | 951 | static int tpacpi_suspend_handler(struct device *dev) |
083f1760 HMH |
952 | { |
953 | struct ibm_struct *ibm, *itmp; | |
954 | ||
955 | list_for_each_entry_safe(ibm, itmp, | |
956 | &tpacpi_all_drivers, | |
957 | all_drivers) { | |
958 | if (ibm->suspend) | |
fd3c3a42 | 959 | (ibm->suspend)(); |
083f1760 HMH |
960 | } |
961 | ||
962 | return 0; | |
963 | } | |
964 | ||
4959a781 | 965 | static int tpacpi_resume_handler(struct device *dev) |
e295e850 HMH |
966 | { |
967 | struct ibm_struct *ibm, *itmp; | |
968 | ||
969 | list_for_each_entry_safe(ibm, itmp, | |
970 | &tpacpi_all_drivers, | |
971 | all_drivers) { | |
972 | if (ibm->resume) | |
973 | (ibm->resume)(); | |
974 | } | |
975 | ||
976 | return 0; | |
977 | } | |
3567a4e2 | 978 | #endif |
e295e850 | 979 | |
4959a781 RW |
980 | static SIMPLE_DEV_PM_OPS(tpacpi_pm, |
981 | tpacpi_suspend_handler, tpacpi_resume_handler); | |
982 | ||
90d9d3c7 HMH |
983 | static void tpacpi_shutdown_handler(struct platform_device *pdev) |
984 | { | |
985 | struct ibm_struct *ibm, *itmp; | |
986 | ||
987 | list_for_each_entry_safe(ibm, itmp, | |
988 | &tpacpi_all_drivers, | |
989 | all_drivers) { | |
990 | if (ibm->shutdown) | |
991 | (ibm->shutdown)(); | |
992 | } | |
993 | } | |
994 | ||
54ae1501 HMH |
995 | static struct platform_driver tpacpi_pdriver = { |
996 | .driver = { | |
e0c7dfe7 | 997 | .name = TPACPI_DRVR_NAME, |
4959a781 | 998 | .pm = &tpacpi_pm, |
54ae1501 | 999 | }, |
90d9d3c7 | 1000 | .shutdown = tpacpi_shutdown_handler, |
54ae1501 HMH |
1001 | }; |
1002 | ||
7fd40029 HMH |
1003 | static struct platform_driver tpacpi_hwmon_pdriver = { |
1004 | .driver = { | |
e0c7dfe7 | 1005 | .name = TPACPI_HWMON_DRVR_NAME, |
7fd40029 HMH |
1006 | }, |
1007 | }; | |
54ae1501 | 1008 | |
176750d6 | 1009 | /************************************************************************* |
b21a15f6 | 1010 | * sysfs support helpers |
176750d6 HMH |
1011 | */ |
1012 | ||
b21a15f6 HMH |
1013 | struct attribute_set { |
1014 | unsigned int members, max_members; | |
1015 | struct attribute_group group; | |
176750d6 HMH |
1016 | }; |
1017 | ||
7252374a HMH |
1018 | struct attribute_set_obj { |
1019 | struct attribute_set s; | |
1020 | struct attribute *a; | |
1021 | } __attribute__((packed)); | |
1022 | ||
1023 | static struct attribute_set *create_attr_set(unsigned int max_members, | |
35ff8b9f | 1024 | const char *name) |
7252374a HMH |
1025 | { |
1026 | struct attribute_set_obj *sobj; | |
1027 | ||
1028 | if (max_members == 0) | |
1029 | return NULL; | |
1030 | ||
1031 | /* Allocates space for implicit NULL at the end too */ | |
1032 | sobj = kzalloc(sizeof(struct attribute_set_obj) + | |
1033 | max_members * sizeof(struct attribute *), | |
1034 | GFP_KERNEL); | |
1035 | if (!sobj) | |
1036 | return NULL; | |
1037 | sobj->s.max_members = max_members; | |
1038 | sobj->s.group.attrs = &sobj->a; | |
1039 | sobj->s.group.name = name; | |
1040 | ||
1041 | return &sobj->s; | |
1042 | } | |
1043 | ||
f74a27d4 HMH |
1044 | #define destroy_attr_set(_set) \ |
1045 | kfree(_set); | |
1046 | ||
7252374a | 1047 | /* not multi-threaded safe, use it in a single thread per set */ |
35ff8b9f | 1048 | static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) |
7252374a HMH |
1049 | { |
1050 | if (!s || !attr) | |
1051 | return -EINVAL; | |
1052 | ||
1053 | if (s->members >= s->max_members) | |
1054 | return -ENOMEM; | |
1055 | ||
1056 | s->group.attrs[s->members] = attr; | |
1057 | s->members++; | |
1058 | ||
1059 | return 0; | |
1060 | } | |
1061 | ||
35ff8b9f | 1062 | static int add_many_to_attr_set(struct attribute_set *s, |
7252374a HMH |
1063 | struct attribute **attr, |
1064 | unsigned int count) | |
1065 | { | |
1066 | int i, res; | |
1067 | ||
1068 | for (i = 0; i < count; i++) { | |
1069 | res = add_to_attr_set(s, attr[i]); | |
1070 | if (res) | |
1071 | return res; | |
1072 | } | |
1073 | ||
1074 | return 0; | |
1075 | } | |
1076 | ||
35ff8b9f | 1077 | static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) |
7252374a HMH |
1078 | { |
1079 | sysfs_remove_group(kobj, &s->group); | |
1080 | destroy_attr_set(s); | |
1081 | } | |
1082 | ||
f74a27d4 HMH |
1083 | #define register_attr_set_with_sysfs(_attr_set, _kobj) \ |
1084 | sysfs_create_group(_kobj, &_attr_set->group) | |
1085 | ||
7252374a HMH |
1086 | static int parse_strtoul(const char *buf, |
1087 | unsigned long max, unsigned long *value) | |
1088 | { | |
1089 | char *endp; | |
1090 | ||
e7d2860b AGR |
1091 | *value = simple_strtoul(skip_spaces(buf), &endp, 0); |
1092 | endp = skip_spaces(endp); | |
7252374a HMH |
1093 | if (*endp || *value > max) |
1094 | return -EINVAL; | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
d64c81c4 HMH |
1099 | static void tpacpi_disable_brightness_delay(void) |
1100 | { | |
1101 | if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) | |
0978e012 | 1102 | pr_notice("ACPI backlight control delay disabled\n"); |
d64c81c4 HMH |
1103 | } |
1104 | ||
19d337df JB |
1105 | static void printk_deprecated_attribute(const char * const what, |
1106 | const char * const details) | |
1107 | { | |
1108 | tpacpi_log_usertask("deprecated sysfs attribute"); | |
5cac62ac | 1109 | pr_warn("WARNING: sysfs attribute %s is deprecated and will be removed. %s\n", |
19d337df JB |
1110 | what, details); |
1111 | } | |
1112 | ||
1113 | /************************************************************************* | |
1114 | * rfkill and radio control support helpers | |
1115 | */ | |
1116 | ||
1117 | /* | |
1118 | * ThinkPad-ACPI firmware handling model: | |
1119 | * | |
1120 | * WLSW (master wireless switch) is event-driven, and is common to all | |
1121 | * firmware-controlled radios. It cannot be controlled, just monitored, | |
1122 | * as expected. It overrides all radio state in firmware | |
1123 | * | |
1124 | * The kernel, a masked-off hotkey, and WLSW can change the radio state | |
1125 | * (TODO: verify how WLSW interacts with the returned radio state). | |
1126 | * | |
1127 | * The only time there are shadow radio state changes, is when | |
1128 | * masked-off hotkeys are used. | |
1129 | */ | |
1130 | ||
1131 | /* | |
1132 | * Internal driver API for radio state: | |
1133 | * | |
1134 | * int: < 0 = error, otherwise enum tpacpi_rfkill_state | |
1135 | * bool: true means radio blocked (off) | |
1136 | */ | |
1137 | enum tpacpi_rfkill_state { | |
1138 | TPACPI_RFK_RADIO_OFF = 0, | |
1139 | TPACPI_RFK_RADIO_ON | |
1140 | }; | |
1141 | ||
1142 | /* rfkill switches */ | |
1143 | enum tpacpi_rfk_id { | |
1144 | TPACPI_RFK_BLUETOOTH_SW_ID = 0, | |
1145 | TPACPI_RFK_WWAN_SW_ID, | |
1146 | TPACPI_RFK_UWB_SW_ID, | |
1147 | TPACPI_RFK_SW_MAX | |
1148 | }; | |
1149 | ||
1150 | static const char *tpacpi_rfkill_names[] = { | |
1151 | [TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", | |
1152 | [TPACPI_RFK_WWAN_SW_ID] = "wwan", | |
1153 | [TPACPI_RFK_UWB_SW_ID] = "uwb", | |
1154 | [TPACPI_RFK_SW_MAX] = NULL | |
1155 | }; | |
1156 | ||
1157 | /* ThinkPad-ACPI rfkill subdriver */ | |
1158 | struct tpacpi_rfk { | |
1159 | struct rfkill *rfkill; | |
1160 | enum tpacpi_rfk_id id; | |
1161 | const struct tpacpi_rfk_ops *ops; | |
1162 | }; | |
1163 | ||
1164 | struct tpacpi_rfk_ops { | |
1165 | /* firmware interface */ | |
1166 | int (*get_status)(void); | |
1167 | int (*set_status)(const enum tpacpi_rfkill_state); | |
1168 | }; | |
1169 | ||
1170 | static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; | |
1171 | ||
1172 | /* Query FW and update rfkill sw state for a given rfkill switch */ | |
1173 | static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) | |
1174 | { | |
1175 | int status; | |
1176 | ||
1177 | if (!tp_rfk) | |
1178 | return -ENODEV; | |
1179 | ||
1180 | status = (tp_rfk->ops->get_status)(); | |
1181 | if (status < 0) | |
1182 | return status; | |
1183 | ||
1184 | rfkill_set_sw_state(tp_rfk->rfkill, | |
1185 | (status == TPACPI_RFK_RADIO_OFF)); | |
1186 | ||
1187 | return status; | |
1188 | } | |
1189 | ||
1190 | /* Query FW and update rfkill sw state for all rfkill switches */ | |
1191 | static void tpacpi_rfk_update_swstate_all(void) | |
1192 | { | |
1193 | unsigned int i; | |
1194 | ||
1195 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) | |
1196 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]); | |
1197 | } | |
1198 | ||
1199 | /* | |
1200 | * Sync the HW-blocking state of all rfkill switches, | |
1201 | * do notice it causes the rfkill core to schedule uevents | |
1202 | */ | |
1203 | static void tpacpi_rfk_update_hwblock_state(bool blocked) | |
1204 | { | |
1205 | unsigned int i; | |
1206 | struct tpacpi_rfk *tp_rfk; | |
1207 | ||
1208 | for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { | |
1209 | tp_rfk = tpacpi_rfkill_switches[i]; | |
1210 | if (tp_rfk) { | |
1211 | if (rfkill_set_hw_state(tp_rfk->rfkill, | |
1212 | blocked)) { | |
1213 | /* ignore -- we track sw block */ | |
1214 | } | |
1215 | } | |
1216 | } | |
1217 | } | |
1218 | ||
1219 | /* Call to get the WLSW state from the firmware */ | |
1220 | static int hotkey_get_wlsw(void); | |
1221 | ||
1222 | /* Call to query WLSW state and update all rfkill switches */ | |
1223 | static bool tpacpi_rfk_check_hwblock_state(void) | |
1224 | { | |
1225 | int res = hotkey_get_wlsw(); | |
1226 | int hw_blocked; | |
1227 | ||
1228 | /* When unknown or unsupported, we have to assume it is unblocked */ | |
1229 | if (res < 0) | |
1230 | return false; | |
1231 | ||
1232 | hw_blocked = (res == TPACPI_RFK_RADIO_OFF); | |
1233 | tpacpi_rfk_update_hwblock_state(hw_blocked); | |
1234 | ||
1235 | return hw_blocked; | |
1236 | } | |
1237 | ||
1238 | static int tpacpi_rfk_hook_set_block(void *data, bool blocked) | |
1239 | { | |
1240 | struct tpacpi_rfk *tp_rfk = data; | |
1241 | int res; | |
1242 | ||
1243 | dbg_printk(TPACPI_DBG_RFKILL, | |
1244 | "request to change radio state to %s\n", | |
1245 | blocked ? "blocked" : "unblocked"); | |
1246 | ||
1247 | /* try to set radio state */ | |
1248 | res = (tp_rfk->ops->set_status)(blocked ? | |
1249 | TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); | |
1250 | ||
1251 | /* and update the rfkill core with whatever the FW really did */ | |
1252 | tpacpi_rfk_update_swstate(tp_rfk); | |
1253 | ||
1254 | return (res < 0) ? res : 0; | |
1255 | } | |
1256 | ||
1257 | static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { | |
1258 | .set_block = tpacpi_rfk_hook_set_block, | |
1259 | }; | |
1260 | ||
1261 | static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, | |
1262 | const struct tpacpi_rfk_ops *tp_rfkops, | |
0e74dc26 HMH |
1263 | const enum rfkill_type rfktype, |
1264 | const char *name, | |
19d337df | 1265 | const bool set_default) |
0e74dc26 | 1266 | { |
19d337df | 1267 | struct tpacpi_rfk *atp_rfk; |
0e74dc26 | 1268 | int res; |
06d5caf4 | 1269 | bool sw_state = false; |
5451a923 | 1270 | bool hw_state; |
06d5caf4 | 1271 | int sw_status; |
90d9d3c7 | 1272 | |
19d337df JB |
1273 | BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); |
1274 | ||
19d337df JB |
1275 | atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); |
1276 | if (atp_rfk) | |
1277 | atp_rfk->rfkill = rfkill_alloc(name, | |
1278 | &tpacpi_pdev->dev, | |
1279 | rfktype, | |
1280 | &tpacpi_rfk_rfkill_ops, | |
1281 | atp_rfk); | |
1282 | if (!atp_rfk || !atp_rfk->rfkill) { | |
0978e012 | 1283 | pr_err("failed to allocate memory for rfkill class\n"); |
19d337df | 1284 | kfree(atp_rfk); |
0e74dc26 HMH |
1285 | return -ENOMEM; |
1286 | } | |
1287 | ||
19d337df JB |
1288 | atp_rfk->id = id; |
1289 | atp_rfk->ops = tp_rfkops; | |
0e74dc26 | 1290 | |
06d5caf4 AJ |
1291 | sw_status = (tp_rfkops->get_status)(); |
1292 | if (sw_status < 0) { | |
0978e012 JP |
1293 | pr_err("failed to read initial state for %s, error %d\n", |
1294 | name, sw_status); | |
b3fa1329 | 1295 | } else { |
06d5caf4 | 1296 | sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); |
b3fa1329 AJ |
1297 | if (set_default) { |
1298 | /* try to keep the initial state, since we ask the | |
1299 | * firmware to preserve it across S5 in NVRAM */ | |
06d5caf4 | 1300 | rfkill_init_sw_state(atp_rfk->rfkill, sw_state); |
b3fa1329 AJ |
1301 | } |
1302 | } | |
5451a923 HMH |
1303 | hw_state = tpacpi_rfk_check_hwblock_state(); |
1304 | rfkill_set_hw_state(atp_rfk->rfkill, hw_state); | |
19d337df JB |
1305 | |
1306 | res = rfkill_register(atp_rfk->rfkill); | |
0e74dc26 | 1307 | if (res < 0) { |
0978e012 | 1308 | pr_err("failed to register %s rfkill switch: %d\n", name, res); |
19d337df JB |
1309 | rfkill_destroy(atp_rfk->rfkill); |
1310 | kfree(atp_rfk); | |
0e74dc26 HMH |
1311 | return res; |
1312 | } | |
1313 | ||
19d337df | 1314 | tpacpi_rfkill_switches[id] = atp_rfk; |
5451a923 | 1315 | |
0978e012 | 1316 | pr_info("rfkill switch %s: radio is %sblocked\n", |
5451a923 | 1317 | name, (sw_state || hw_state) ? "" : "un"); |
0e74dc26 HMH |
1318 | return 0; |
1319 | } | |
1320 | ||
19d337df | 1321 | static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) |
73a94d86 | 1322 | { |
19d337df JB |
1323 | struct tpacpi_rfk *tp_rfk; |
1324 | ||
1325 | BUG_ON(id >= TPACPI_RFK_SW_MAX); | |
1326 | ||
1327 | tp_rfk = tpacpi_rfkill_switches[id]; | |
1328 | if (tp_rfk) { | |
1329 | rfkill_unregister(tp_rfk->rfkill); | |
5f0dadb4 | 1330 | rfkill_destroy(tp_rfk->rfkill); |
19d337df JB |
1331 | tpacpi_rfkill_switches[id] = NULL; |
1332 | kfree(tp_rfk); | |
1333 | } | |
73a94d86 HMH |
1334 | } |
1335 | ||
1336 | static void printk_deprecated_rfkill_attribute(const char * const what) | |
1337 | { | |
1338 | printk_deprecated_attribute(what, | |
1339 | "Please switch to generic rfkill before year 2010"); | |
1340 | } | |
1341 | ||
19d337df JB |
1342 | /* sysfs <radio> enable ------------------------------------------------ */ |
1343 | static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, | |
1344 | struct device_attribute *attr, | |
1345 | char *buf) | |
1346 | { | |
1347 | int status; | |
1348 | ||
1349 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1350 | ||
1351 | /* This is in the ABI... */ | |
1352 | if (tpacpi_rfk_check_hwblock_state()) { | |
1353 | status = TPACPI_RFK_RADIO_OFF; | |
1354 | } else { | |
1355 | status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1356 | if (status < 0) | |
1357 | return status; | |
1358 | } | |
1359 | ||
1360 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
1361 | (status == TPACPI_RFK_RADIO_ON) ? 1 : 0); | |
1362 | } | |
1363 | ||
1364 | static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, | |
1365 | struct device_attribute *attr, | |
1366 | const char *buf, size_t count) | |
1367 | { | |
1368 | unsigned long t; | |
1369 | int res; | |
1370 | ||
1371 | printk_deprecated_rfkill_attribute(attr->attr.name); | |
1372 | ||
1373 | if (parse_strtoul(buf, 1, &t)) | |
1374 | return -EINVAL; | |
1375 | ||
1376 | tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); | |
1377 | ||
1378 | /* This is in the ABI... */ | |
1379 | if (tpacpi_rfk_check_hwblock_state() && !!t) | |
1380 | return -EPERM; | |
1381 | ||
1382 | res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? | |
1383 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); | |
1384 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1385 | ||
1386 | return (res < 0) ? res : count; | |
1387 | } | |
1388 | ||
1389 | /* procfs -------------------------------------------------------------- */ | |
887965e6 | 1390 | static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) |
19d337df | 1391 | { |
19d337df | 1392 | if (id >= TPACPI_RFK_SW_MAX) |
887965e6 | 1393 | seq_printf(m, "status:\t\tnot supported\n"); |
19d337df JB |
1394 | else { |
1395 | int status; | |
1396 | ||
1397 | /* This is in the ABI... */ | |
1398 | if (tpacpi_rfk_check_hwblock_state()) { | |
1399 | status = TPACPI_RFK_RADIO_OFF; | |
1400 | } else { | |
1401 | status = tpacpi_rfk_update_swstate( | |
1402 | tpacpi_rfkill_switches[id]); | |
1403 | if (status < 0) | |
1404 | return status; | |
1405 | } | |
1406 | ||
887965e6 | 1407 | seq_printf(m, "status:\t\t%s\n", |
19d337df JB |
1408 | (status == TPACPI_RFK_RADIO_ON) ? |
1409 | "enabled" : "disabled"); | |
887965e6 | 1410 | seq_printf(m, "commands:\tenable, disable\n"); |
19d337df JB |
1411 | } |
1412 | ||
887965e6 | 1413 | return 0; |
19d337df JB |
1414 | } |
1415 | ||
1416 | static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) | |
1417 | { | |
1418 | char *cmd; | |
1419 | int status = -1; | |
1420 | int res = 0; | |
1421 | ||
1422 | if (id >= TPACPI_RFK_SW_MAX) | |
1423 | return -ENODEV; | |
1424 | ||
1425 | while ((cmd = next_cmd(&buf))) { | |
1426 | if (strlencmp(cmd, "enable") == 0) | |
1427 | status = TPACPI_RFK_RADIO_ON; | |
1428 | else if (strlencmp(cmd, "disable") == 0) | |
1429 | status = TPACPI_RFK_RADIO_OFF; | |
1430 | else | |
1431 | return -EINVAL; | |
1432 | } | |
1433 | ||
1434 | if (status != -1) { | |
1435 | tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", | |
1436 | (status == TPACPI_RFK_RADIO_ON) ? | |
1437 | "enable" : "disable", | |
1438 | tpacpi_rfkill_names[id]); | |
1439 | res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); | |
1440 | tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); | |
1441 | } | |
1442 | ||
1443 | return res; | |
1444 | } | |
1445 | ||
56b6aeb0 | 1446 | /************************************************************************* |
b21a15f6 | 1447 | * thinkpad-acpi driver attributes |
56b6aeb0 HMH |
1448 | */ |
1449 | ||
b21a15f6 | 1450 | /* interface_version --------------------------------------------------- */ |
ac3054c4 | 1451 | static ssize_t interface_version_show(struct device_driver *drv, char *buf) |
1da177e4 | 1452 | { |
b21a15f6 HMH |
1453 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); |
1454 | } | |
ac3054c4 | 1455 | static DRIVER_ATTR_RO(interface_version); |
b21a15f6 HMH |
1456 | |
1457 | /* debug_level --------------------------------------------------------- */ | |
ac3054c4 | 1458 | static ssize_t debug_level_show(struct device_driver *drv, char *buf) |
b21a15f6 HMH |
1459 | { |
1460 | return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); | |
1461 | } | |
1462 | ||
ac3054c4 GKH |
1463 | static ssize_t debug_level_store(struct device_driver *drv, const char *buf, |
1464 | size_t count) | |
b21a15f6 HMH |
1465 | { |
1466 | unsigned long t; | |
1467 | ||
1468 | if (parse_strtoul(buf, 0xffff, &t)) | |
1469 | return -EINVAL; | |
1470 | ||
1471 | dbg_level = t; | |
1472 | ||
1473 | return count; | |
1474 | } | |
ac3054c4 | 1475 | static DRIVER_ATTR_RW(debug_level); |
b21a15f6 HMH |
1476 | |
1477 | /* version ------------------------------------------------------------- */ | |
ac3054c4 | 1478 | static ssize_t version_show(struct device_driver *drv, char *buf) |
b21a15f6 | 1479 | { |
35ff8b9f HMH |
1480 | return snprintf(buf, PAGE_SIZE, "%s v%s\n", |
1481 | TPACPI_DESC, TPACPI_VERSION); | |
b21a15f6 | 1482 | } |
ac3054c4 | 1483 | static DRIVER_ATTR_RO(version); |
b21a15f6 HMH |
1484 | |
1485 | /* --------------------------------------------------------------------- */ | |
1486 | ||
a73f3091 HMH |
1487 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1488 | ||
a73f3091 | 1489 | /* wlsw_emulstate ------------------------------------------------------ */ |
ac3054c4 | 1490 | static ssize_t wlsw_emulstate_show(struct device_driver *drv, char *buf) |
a73f3091 HMH |
1491 | { |
1492 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); | |
1493 | } | |
1494 | ||
ac3054c4 GKH |
1495 | static ssize_t wlsw_emulstate_store(struct device_driver *drv, const char *buf, |
1496 | size_t count) | |
a73f3091 HMH |
1497 | { |
1498 | unsigned long t; | |
1499 | ||
1500 | if (parse_strtoul(buf, 1, &t)) | |
1501 | return -EINVAL; | |
1502 | ||
19d337df | 1503 | if (tpacpi_wlsw_emulstate != !!t) { |
a73f3091 | 1504 | tpacpi_wlsw_emulstate = !!t; |
19d337df JB |
1505 | tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ |
1506 | } | |
a73f3091 HMH |
1507 | |
1508 | return count; | |
1509 | } | |
ac3054c4 | 1510 | static DRIVER_ATTR_RW(wlsw_emulstate); |
a73f3091 HMH |
1511 | |
1512 | /* bluetooth_emulstate ------------------------------------------------- */ | |
ac3054c4 | 1513 | static ssize_t bluetooth_emulstate_show(struct device_driver *drv, char *buf) |
a73f3091 HMH |
1514 | { |
1515 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); | |
1516 | } | |
1517 | ||
ac3054c4 GKH |
1518 | static ssize_t bluetooth_emulstate_store(struct device_driver *drv, |
1519 | const char *buf, size_t count) | |
a73f3091 HMH |
1520 | { |
1521 | unsigned long t; | |
1522 | ||
1523 | if (parse_strtoul(buf, 1, &t)) | |
1524 | return -EINVAL; | |
1525 | ||
1526 | tpacpi_bluetooth_emulstate = !!t; | |
1527 | ||
1528 | return count; | |
1529 | } | |
ac3054c4 | 1530 | static DRIVER_ATTR_RW(bluetooth_emulstate); |
a73f3091 HMH |
1531 | |
1532 | /* wwan_emulstate ------------------------------------------------- */ | |
ac3054c4 | 1533 | static ssize_t wwan_emulstate_show(struct device_driver *drv, char *buf) |
a73f3091 HMH |
1534 | { |
1535 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); | |
1536 | } | |
1537 | ||
ac3054c4 GKH |
1538 | static ssize_t wwan_emulstate_store(struct device_driver *drv, const char *buf, |
1539 | size_t count) | |
a73f3091 HMH |
1540 | { |
1541 | unsigned long t; | |
1542 | ||
1543 | if (parse_strtoul(buf, 1, &t)) | |
1544 | return -EINVAL; | |
1545 | ||
1546 | tpacpi_wwan_emulstate = !!t; | |
1547 | ||
1548 | return count; | |
1549 | } | |
ac3054c4 | 1550 | static DRIVER_ATTR_RW(wwan_emulstate); |
a73f3091 | 1551 | |
0045c0aa | 1552 | /* uwb_emulstate ------------------------------------------------- */ |
ac3054c4 | 1553 | static ssize_t uwb_emulstate_show(struct device_driver *drv, char *buf) |
0045c0aa HMH |
1554 | { |
1555 | return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); | |
1556 | } | |
1557 | ||
ac3054c4 GKH |
1558 | static ssize_t uwb_emulstate_store(struct device_driver *drv, const char *buf, |
1559 | size_t count) | |
0045c0aa HMH |
1560 | { |
1561 | unsigned long t; | |
1562 | ||
1563 | if (parse_strtoul(buf, 1, &t)) | |
1564 | return -EINVAL; | |
1565 | ||
1566 | tpacpi_uwb_emulstate = !!t; | |
1567 | ||
1568 | return count; | |
1569 | } | |
ac3054c4 | 1570 | static DRIVER_ATTR_RW(uwb_emulstate); |
a73f3091 HMH |
1571 | #endif |
1572 | ||
1573 | /* --------------------------------------------------------------------- */ | |
1574 | ||
35ff8b9f | 1575 | static struct driver_attribute *tpacpi_driver_attributes[] = { |
b21a15f6 HMH |
1576 | &driver_attr_debug_level, &driver_attr_version, |
1577 | &driver_attr_interface_version, | |
1578 | }; | |
1579 | ||
1580 | static int __init tpacpi_create_driver_attributes(struct device_driver *drv) | |
1581 | { | |
1582 | int i, res; | |
1583 | ||
1584 | i = 0; | |
1585 | res = 0; | |
1586 | while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { | |
1587 | res = driver_create_file(drv, tpacpi_driver_attributes[i]); | |
1588 | i++; | |
1589 | } | |
1590 | ||
a73f3091 HMH |
1591 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
1592 | if (!res && dbg_wlswemul) | |
1593 | res = driver_create_file(drv, &driver_attr_wlsw_emulstate); | |
1594 | if (!res && dbg_bluetoothemul) | |
1595 | res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); | |
1596 | if (!res && dbg_wwanemul) | |
1597 | res = driver_create_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa HMH |
1598 | if (!res && dbg_uwbemul) |
1599 | res = driver_create_file(drv, &driver_attr_uwb_emulstate); | |
a73f3091 HMH |
1600 | #endif |
1601 | ||
b21a15f6 HMH |
1602 | return res; |
1603 | } | |
1604 | ||
1605 | static void tpacpi_remove_driver_attributes(struct device_driver *drv) | |
1606 | { | |
1607 | int i; | |
1608 | ||
35ff8b9f | 1609 | for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) |
b21a15f6 | 1610 | driver_remove_file(drv, tpacpi_driver_attributes[i]); |
a73f3091 HMH |
1611 | |
1612 | #ifdef THINKPAD_ACPI_DEBUGFACILITIES | |
1613 | driver_remove_file(drv, &driver_attr_wlsw_emulstate); | |
1614 | driver_remove_file(drv, &driver_attr_bluetooth_emulstate); | |
1615 | driver_remove_file(drv, &driver_attr_wwan_emulstate); | |
0045c0aa | 1616 | driver_remove_file(drv, &driver_attr_uwb_emulstate); |
a73f3091 | 1617 | #endif |
b21a15f6 HMH |
1618 | } |
1619 | ||
600a99fa HMH |
1620 | /************************************************************************* |
1621 | * Firmware Data | |
1622 | */ | |
1623 | ||
1624 | /* | |
1625 | * Table of recommended minimum BIOS versions | |
1626 | * | |
1627 | * Reasons for listing: | |
9ddc5b6f | 1628 | * 1. Stable BIOS, listed because the unknown amount of |
600a99fa HMH |
1629 | * bugs and bad ACPI behaviour on older versions |
1630 | * | |
1631 | * 2. BIOS or EC fw with known bugs that trigger on Linux | |
1632 | * | |
1633 | * 3. BIOS with known reduced functionality in older versions | |
1634 | * | |
1635 | * We recommend the latest BIOS and EC version. | |
1636 | * We only support the latest BIOS and EC fw version as a rule. | |
1637 | * | |
1638 | * Sources: IBM ThinkPad Public Web Documents (update changelogs), | |
1639 | * Information from users in ThinkWiki | |
e675abaf HMH |
1640 | * |
1641 | * WARNING: we use this table also to detect that the machine is | |
1642 | * a ThinkPad in some cases, so don't remove entries lightly. | |
600a99fa HMH |
1643 | */ |
1644 | ||
1645 | #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ | |
1646 | { .vendor = (__v), \ | |
1647 | .bios = TPID(__id1, __id2), \ | |
1648 | .ec = TPACPI_MATCH_ANY, \ | |
846a416b JW |
1649 | .quirks = TPACPI_MATCH_ANY_VERSION << 16 \ |
1650 | | TPVER(__bv1, __bv2) } | |
600a99fa HMH |
1651 | |
1652 | #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ | |
275014ae | 1653 | __eid, __ev1, __ev2) \ |
600a99fa HMH |
1654 | { .vendor = (__v), \ |
1655 | .bios = TPID(__bid1, __bid2), \ | |
275014ae | 1656 | .ec = __eid, \ |
846a416b JW |
1657 | .quirks = TPVER(__ev1, __ev2) << 16 \ |
1658 | | TPVER(__bv1, __bv2) } | |
600a99fa HMH |
1659 | |
1660 | #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ | |
1661 | TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) | |
1662 | ||
275014ae | 1663 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1664 | #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ |
1665 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
275014ae HMH |
1666 | __bv1, __bv2, TPID(__id1, __id2), \ |
1667 | __ev1, __ev2), \ | |
1668 | TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ | |
1669 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1670 | __ev1, __ev2) | |
600a99fa | 1671 | |
275014ae | 1672 | /* Outdated IBM BIOSes often lack the EC id string */ |
600a99fa HMH |
1673 | #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ |
1674 | __eid1, __eid2, __ev1, __ev2) \ | |
1675 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
275014ae HMH |
1676 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1677 | __ev1, __ev2), \ | |
1678 | TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ | |
1679 | __bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ | |
1680 | __ev1, __ev2) | |
600a99fa HMH |
1681 | |
1682 | #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ | |
1683 | TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) | |
1684 | ||
1685 | #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ | |
1686 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ | |
275014ae HMH |
1687 | __bv1, __bv2, TPID(__id1, __id2), \ |
1688 | __ev1, __ev2) | |
600a99fa HMH |
1689 | |
1690 | #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ | |
1691 | __eid1, __eid2, __ev1, __ev2) \ | |
1692 | TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ | |
275014ae HMH |
1693 | __bv1, __bv2, TPID(__eid1, __eid2), \ |
1694 | __ev1, __ev2) | |
600a99fa HMH |
1695 | |
1696 | static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { | |
1697 | /* Numeric models ------------------ */ | |
1698 | /* FW MODEL BIOS VERS */ | |
1699 | TPV_QI0('I', 'M', '6', '5'), /* 570 */ | |
1700 | TPV_QI0('I', 'U', '2', '6'), /* 570E */ | |
1701 | TPV_QI0('I', 'B', '5', '4'), /* 600 */ | |
1702 | TPV_QI0('I', 'H', '4', '7'), /* 600E */ | |
1703 | TPV_QI0('I', 'N', '3', '6'), /* 600E */ | |
1704 | TPV_QI0('I', 'T', '5', '5'), /* 600X */ | |
1705 | TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ | |
1706 | TPV_QI0('I', 'I', '4', '2'), /* 770X */ | |
1707 | TPV_QI0('I', 'O', '2', '3'), /* 770Z */ | |
1708 | ||
1709 | /* A-series ------------------------- */ | |
1710 | /* FW MODEL BIOS VERS EC VERS */ | |
1711 | TPV_QI0('I', 'W', '5', '9'), /* A20m */ | |
1712 | TPV_QI0('I', 'V', '6', '9'), /* A20p */ | |
1713 | TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ | |
1714 | TPV_QI0('K', 'U', '3', '6'), /* A21e */ | |
1715 | TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ | |
1716 | TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ | |
1717 | TPV_QI0('1', 'B', '1', '7'), /* A22e */ | |
1718 | TPV_QI0('1', '3', '2', '0'), /* A22m */ | |
1719 | TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ | |
1720 | TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ | |
1721 | TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ | |
1722 | ||
1723 | /* G-series ------------------------- */ | |
1724 | /* FW MODEL BIOS VERS */ | |
1725 | TPV_QI0('1', 'T', 'A', '6'), /* G40 */ | |
1726 | TPV_QI0('1', 'X', '5', '7'), /* G41 */ | |
1727 | ||
1728 | /* R-series, T-series --------------- */ | |
1729 | /* FW MODEL BIOS VERS EC VERS */ | |
1730 | TPV_QI0('1', 'C', 'F', '0'), /* R30 */ | |
1731 | TPV_QI0('1', 'F', 'F', '1'), /* R31 */ | |
1732 | TPV_QI0('1', 'M', '9', '7'), /* R32 */ | |
1733 | TPV_QI0('1', 'O', '6', '1'), /* R40 */ | |
1734 | TPV_QI0('1', 'P', '6', '5'), /* R40 */ | |
1735 | TPV_QI0('1', 'S', '7', '0'), /* R40e */ | |
1736 | TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, | |
1737 | T40/p, T41/p, T42/p (1) */ | |
1738 | TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ | |
1739 | TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ | |
1740 | TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ | |
1741 | TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ | |
1742 | ||
1743 | TPV_QI0('I', 'Y', '6', '1'), /* T20 */ | |
1744 | TPV_QI0('K', 'Z', '3', '4'), /* T21 */ | |
1745 | TPV_QI0('1', '6', '3', '2'), /* T22 */ | |
1746 | TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ | |
1747 | TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ | |
1748 | TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ | |
1749 | ||
1750 | TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ | |
1751 | TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ | |
90765c6a | 1752 | TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ |
600a99fa HMH |
1753 | |
1754 | /* BIOS FW BIOS VERS EC FW EC VERS */ | |
1755 | TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ | |
1756 | TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ | |
1757 | ||
1758 | /* X-series ------------------------- */ | |
1759 | /* FW MODEL BIOS VERS EC VERS */ | |
1760 | TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ | |
1761 | TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ | |
1762 | TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ | |
1763 | TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ | |
1764 | TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ | |
1765 | TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ | |
1766 | TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ | |
1767 | ||
90765c6a HMH |
1768 | TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ |
1769 | TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ | |
600a99fa HMH |
1770 | |
1771 | /* (0) - older versions lack DMI EC fw string and functionality */ | |
1772 | /* (1) - older versions known to lack functionality */ | |
1773 | }; | |
1774 | ||
1775 | #undef TPV_QL1 | |
1776 | #undef TPV_QL0 | |
1777 | #undef TPV_QI2 | |
1778 | #undef TPV_QI1 | |
1779 | #undef TPV_QI0 | |
1780 | #undef TPV_Q_X | |
1781 | #undef TPV_Q | |
1782 | ||
1783 | static void __init tpacpi_check_outdated_fw(void) | |
1784 | { | |
1785 | unsigned long fwvers; | |
1786 | u16 ec_version, bios_version; | |
1787 | ||
1788 | fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1789 | ARRAY_SIZE(tpacpi_bios_version_qtable)); | |
1790 | ||
1791 | if (!fwvers) | |
1792 | return; | |
1793 | ||
1794 | bios_version = fwvers & 0xffffU; | |
1795 | ec_version = (fwvers >> 16) & 0xffffU; | |
1796 | ||
1797 | /* note that unknown versions are set to 0x0000 and we use that */ | |
1798 | if ((bios_version > thinkpad_id.bios_release) || | |
1799 | (ec_version > thinkpad_id.ec_release && | |
846a416b | 1800 | ec_version != TPACPI_MATCH_ANY_VERSION)) { |
600a99fa HMH |
1801 | /* |
1802 | * The changelogs would let us track down the exact | |
1803 | * reason, but it is just too much of a pain to track | |
1804 | * it. We only list BIOSes that are either really | |
1805 | * broken, or really stable to begin with, so it is | |
1806 | * best if the user upgrades the firmware anyway. | |
1807 | */ | |
0978e012 | 1808 | pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n"); |
5cac62ac | 1809 | pr_warn("WARNING: This firmware may be missing critical bug fixes and/or important features\n"); |
600a99fa HMH |
1810 | } |
1811 | } | |
1812 | ||
e675abaf HMH |
1813 | static bool __init tpacpi_is_fw_known(void) |
1814 | { | |
1815 | return tpacpi_check_quirks(tpacpi_bios_version_qtable, | |
1816 | ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; | |
1817 | } | |
1818 | ||
b21a15f6 HMH |
1819 | /**************************************************************************** |
1820 | **************************************************************************** | |
1821 | * | |
1822 | * Subdrivers | |
1823 | * | |
1824 | **************************************************************************** | |
1825 | ****************************************************************************/ | |
1826 | ||
1827 | /************************************************************************* | |
7a43f788 | 1828 | * thinkpad-acpi metadata subdriver |
b21a15f6 HMH |
1829 | */ |
1830 | ||
887965e6 | 1831 | static int thinkpad_acpi_driver_read(struct seq_file *m) |
1da177e4 | 1832 | { |
887965e6 AD |
1833 | seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); |
1834 | seq_printf(m, "version:\t%s\n", TPACPI_VERSION); | |
1835 | return 0; | |
1da177e4 LT |
1836 | } |
1837 | ||
a5763f22 HMH |
1838 | static struct ibm_struct thinkpad_acpi_driver_data = { |
1839 | .name = "driver", | |
1840 | .read = thinkpad_acpi_driver_read, | |
1841 | }; | |
1842 | ||
56b6aeb0 HMH |
1843 | /************************************************************************* |
1844 | * Hotkey subdriver | |
1845 | */ | |
1846 | ||
0d922e3b HMH |
1847 | /* |
1848 | * ThinkPad firmware event model | |
1849 | * | |
1850 | * The ThinkPad firmware has two main event interfaces: normal ACPI | |
1851 | * notifications (which follow the ACPI standard), and a private event | |
1852 | * interface. | |
1853 | * | |
1854 | * The private event interface also issues events for the hotkeys. As | |
1855 | * the driver gained features, the event handling code ended up being | |
1856 | * built around the hotkey subdriver. This will need to be refactored | |
1857 | * to a more formal event API eventually. | |
1858 | * | |
1859 | * Some "hotkeys" are actually supposed to be used as event reports, | |
1860 | * such as "brightness has changed", "volume has changed", depending on | |
1861 | * the ThinkPad model and how the firmware is operating. | |
1862 | * | |
1863 | * Unlike other classes, hotkey-class events have mask/unmask control on | |
1864 | * non-ancient firmware. However, how it behaves changes a lot with the | |
1865 | * firmware model and version. | |
1866 | */ | |
1867 | ||
f74a27d4 HMH |
1868 | enum { /* hot key scan codes (derived from ACPI DSDT) */ |
1869 | TP_ACPI_HOTKEYSCAN_FNF1 = 0, | |
1870 | TP_ACPI_HOTKEYSCAN_FNF2, | |
1871 | TP_ACPI_HOTKEYSCAN_FNF3, | |
1872 | TP_ACPI_HOTKEYSCAN_FNF4, | |
1873 | TP_ACPI_HOTKEYSCAN_FNF5, | |
1874 | TP_ACPI_HOTKEYSCAN_FNF6, | |
1875 | TP_ACPI_HOTKEYSCAN_FNF7, | |
1876 | TP_ACPI_HOTKEYSCAN_FNF8, | |
1877 | TP_ACPI_HOTKEYSCAN_FNF9, | |
1878 | TP_ACPI_HOTKEYSCAN_FNF10, | |
1879 | TP_ACPI_HOTKEYSCAN_FNF11, | |
1880 | TP_ACPI_HOTKEYSCAN_FNF12, | |
1881 | TP_ACPI_HOTKEYSCAN_FNBACKSPACE, | |
1882 | TP_ACPI_HOTKEYSCAN_FNINSERT, | |
1883 | TP_ACPI_HOTKEYSCAN_FNDELETE, | |
1884 | TP_ACPI_HOTKEYSCAN_FNHOME, | |
1885 | TP_ACPI_HOTKEYSCAN_FNEND, | |
1886 | TP_ACPI_HOTKEYSCAN_FNPAGEUP, | |
1887 | TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, | |
1888 | TP_ACPI_HOTKEYSCAN_FNSPACE, | |
1889 | TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1890 | TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1891 | TP_ACPI_HOTKEYSCAN_MUTE, | |
1892 | TP_ACPI_HOTKEYSCAN_THINKPAD, | |
34a656d2 HMH |
1893 | TP_ACPI_HOTKEYSCAN_UNK1, |
1894 | TP_ACPI_HOTKEYSCAN_UNK2, | |
1895 | TP_ACPI_HOTKEYSCAN_UNK3, | |
1896 | TP_ACPI_HOTKEYSCAN_UNK4, | |
1897 | TP_ACPI_HOTKEYSCAN_UNK5, | |
1898 | TP_ACPI_HOTKEYSCAN_UNK6, | |
1899 | TP_ACPI_HOTKEYSCAN_UNK7, | |
1900 | TP_ACPI_HOTKEYSCAN_UNK8, | |
1901 | ||
149c8c75 CK |
1902 | /* Adaptive keyboard keycodes */ |
1903 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, | |
1904 | TP_ACPI_HOTKEYSCAN_MUTE2 = TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, | |
6a68d855 BN |
1905 | TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO, |
1906 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL, | |
1907 | TP_ACPI_HOTKEYSCAN_CLOUD, | |
1908 | TP_ACPI_HOTKEYSCAN_UNK9, | |
1909 | TP_ACPI_HOTKEYSCAN_VOICE, | |
1910 | TP_ACPI_HOTKEYSCAN_UNK10, | |
1911 | TP_ACPI_HOTKEYSCAN_GESTURES, | |
1912 | TP_ACPI_HOTKEYSCAN_UNK11, | |
1913 | TP_ACPI_HOTKEYSCAN_UNK12, | |
1914 | TP_ACPI_HOTKEYSCAN_UNK13, | |
1915 | TP_ACPI_HOTKEYSCAN_CONFIG, | |
1916 | TP_ACPI_HOTKEYSCAN_NEW_TAB, | |
1917 | TP_ACPI_HOTKEYSCAN_RELOAD, | |
1918 | TP_ACPI_HOTKEYSCAN_BACK, | |
1919 | TP_ACPI_HOTKEYSCAN_MIC_DOWN, | |
1920 | TP_ACPI_HOTKEYSCAN_MIC_UP, | |
1921 | TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION, | |
1922 | TP_ACPI_HOTKEYSCAN_CAMERA_MODE, | |
1923 | TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY, | |
1924 | ||
696c6523 CK |
1925 | /* Lenovo extended keymap, starting at 0x1300 */ |
1926 | TP_ACPI_HOTKEYSCAN_EXTENDED_START, | |
1927 | /* first new observed key (star, favorites) is 0x1311 */ | |
1928 | TP_ACPI_HOTKEYSCAN_STAR = 69, | |
1929 | TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2, | |
cb5c1978 | 1930 | TP_ACPI_HOTKEYSCAN_CALCULATOR, |
696c6523 CK |
1931 | TP_ACPI_HOTKEYSCAN_BLUETOOTH, |
1932 | TP_ACPI_HOTKEYSCAN_KEYBOARD, | |
1933 | ||
34a656d2 HMH |
1934 | /* Hotkey keymap size */ |
1935 | TPACPI_HOTKEY_MAP_LEN | |
f74a27d4 HMH |
1936 | }; |
1937 | ||
0d922e3b | 1938 | enum { /* Keys/events available through NVRAM polling */ |
01e88f25 HMH |
1939 | TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, |
1940 | TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, | |
1941 | }; | |
1942 | ||
1943 | enum { /* Positions of some of the keys in hotkey masks */ | |
1944 | TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, | |
1945 | TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, | |
1946 | TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, | |
1947 | TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, | |
1948 | TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, | |
c685e20d | 1949 | TP_ACPI_HKEY_KBD_LIGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, |
01e88f25 HMH |
1950 | TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, |
1951 | TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, | |
1952 | TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, | |
1953 | TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, | |
1954 | TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, | |
1955 | }; | |
1956 | ||
1957 | enum { /* NVRAM to ACPI HKEY group map */ | |
1958 | TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | | |
1959 | TP_ACPI_HKEY_ZOOM_MASK | | |
1960 | TP_ACPI_HKEY_DISPSWTCH_MASK | | |
1961 | TP_ACPI_HKEY_HIBERNATE_MASK, | |
1962 | TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | | |
1963 | TP_ACPI_HKEY_BRGHTDWN_MASK, | |
1964 | TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | | |
1965 | TP_ACPI_HKEY_VOLDWN_MASK | | |
1966 | TP_ACPI_HKEY_MUTE_MASK, | |
1967 | }; | |
1968 | ||
1969 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
1970 | struct tp_nvram_state { | |
1971 | u16 thinkpad_toggle:1; | |
1972 | u16 zoom_toggle:1; | |
1973 | u16 display_toggle:1; | |
1974 | u16 thinklight_toggle:1; | |
1975 | u16 hibernate_toggle:1; | |
1976 | u16 displayexp_toggle:1; | |
1977 | u16 display_state:1; | |
1978 | u16 brightness_toggle:1; | |
1979 | u16 volume_toggle:1; | |
1980 | u16 mute:1; | |
1981 | ||
1982 | u8 brightness_level; | |
1983 | u8 volume_level; | |
1984 | }; | |
1985 | ||
db25f16d | 1986 | /* kthread for the hotkey poller */ |
01e88f25 | 1987 | static struct task_struct *tpacpi_hotkey_task; |
db25f16d | 1988 | |
db25f16d | 1989 | /* |
0d922e3b HMH |
1990 | * Acquire mutex to write poller control variables as an |
1991 | * atomic block. | |
1992 | * | |
1993 | * Increment hotkey_config_change when changing them if you | |
1994 | * want the kthread to forget old state. | |
db25f16d HMH |
1995 | * |
1996 | * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
1997 | */ | |
01e88f25 HMH |
1998 | static struct mutex hotkey_thread_data_mutex; |
1999 | static unsigned int hotkey_config_change; | |
2000 | ||
db25f16d HMH |
2001 | /* |
2002 | * hotkey poller control variables | |
2003 | * | |
2004 | * Must be atomic or readers will also need to acquire mutex | |
0d922e3b HMH |
2005 | * |
2006 | * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END | |
2007 | * should be used only when the changes need to be taken as | |
2008 | * a block, OR when one needs to force the kthread to forget | |
2009 | * old state. | |
db25f16d HMH |
2010 | */ |
2011 | static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ | |
2012 | static unsigned int hotkey_poll_freq = 10; /* Hz */ | |
2013 | ||
2014 | #define HOTKEY_CONFIG_CRITICAL_START \ | |
2015 | do { \ | |
2016 | mutex_lock(&hotkey_thread_data_mutex); \ | |
2017 | hotkey_config_change++; \ | |
2018 | } while (0); | |
2019 | #define HOTKEY_CONFIG_CRITICAL_END \ | |
2020 | mutex_unlock(&hotkey_thread_data_mutex); | |
2021 | ||
01e88f25 HMH |
2022 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2023 | ||
2024 | #define hotkey_source_mask 0U | |
db25f16d HMH |
2025 | #define HOTKEY_CONFIG_CRITICAL_START |
2026 | #define HOTKEY_CONFIG_CRITICAL_END | |
01e88f25 HMH |
2027 | |
2028 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2029 | ||
f74a27d4 HMH |
2030 | static struct mutex hotkey_mutex; |
2031 | ||
a713b4d7 HMH |
2032 | static enum { /* Reasons for waking up */ |
2033 | TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ | |
2034 | TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ | |
2035 | TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ | |
2036 | } hotkey_wakeup_reason; | |
2037 | ||
2038 | static int hotkey_autosleep_ack; | |
2039 | ||
0d922e3b HMH |
2040 | static u32 hotkey_orig_mask; /* events the BIOS had enabled */ |
2041 | static u32 hotkey_all_mask; /* all events supported in fw */ | |
0118c2d3 | 2042 | static u32 hotkey_adaptive_all_mask; /* all adaptive events supported in fw */ |
0d922e3b HMH |
2043 | static u32 hotkey_reserved_mask; /* events better left disabled */ |
2044 | static u32 hotkey_driver_mask; /* events needed by the driver */ | |
2045 | static u32 hotkey_user_mask; /* events visible to userspace */ | |
2046 | static u32 hotkey_acpi_mask; /* events enabled in firmware */ | |
6a38abbf | 2047 | |
edf0e0e5 | 2048 | static u16 *hotkey_keycode_map; |
78f81cc4 | 2049 | |
94954cc6 | 2050 | static struct attribute_set *hotkey_dev_attributes; |
a0416420 | 2051 | |
8b468c0c HMH |
2052 | static void tpacpi_driver_event(const unsigned int hkey_event); |
2053 | static void hotkey_driver_event(const unsigned int scancode); | |
7f0cf712 | 2054 | static void hotkey_poll_setup(const bool may_warn); |
8b468c0c | 2055 | |
6c231bd5 HMH |
2056 | /* HKEY.MHKG() return bits */ |
2057 | #define TP_HOTKEY_TABLET_MASK (1 << 3) | |
dda3ec0a BB |
2058 | enum { |
2059 | TP_ACPI_MULTI_MODE_INVALID = 0, | |
2060 | TP_ACPI_MULTI_MODE_UNKNOWN = 1 << 0, | |
2061 | TP_ACPI_MULTI_MODE_LAPTOP = 1 << 1, | |
2062 | TP_ACPI_MULTI_MODE_TABLET = 1 << 2, | |
2063 | TP_ACPI_MULTI_MODE_FLAT = 1 << 3, | |
2064 | TP_ACPI_MULTI_MODE_STAND = 1 << 4, | |
2065 | TP_ACPI_MULTI_MODE_TENT = 1 << 5, | |
2066 | TP_ACPI_MULTI_MODE_STAND_TENT = 1 << 6, | |
2067 | }; | |
2068 | ||
2069 | enum { | |
2070 | /* The following modes are considered tablet mode for the purpose of | |
2071 | * reporting the status to userspace. i.e. in all these modes it makes | |
2072 | * sense to disable the laptop input devices such as touchpad and | |
2073 | * keyboard. | |
2074 | */ | |
2075 | TP_ACPI_MULTI_MODE_TABLET_LIKE = TP_ACPI_MULTI_MODE_TABLET | | |
2076 | TP_ACPI_MULTI_MODE_STAND | | |
2077 | TP_ACPI_MULTI_MODE_TENT | | |
2078 | TP_ACPI_MULTI_MODE_STAND_TENT, | |
2079 | }; | |
6c231bd5 | 2080 | |
19d337df | 2081 | static int hotkey_get_wlsw(void) |
74941a69 | 2082 | { |
19d337df JB |
2083 | int status; |
2084 | ||
2085 | if (!tp_features.hotkey_wlsw) | |
2086 | return -ENODEV; | |
2087 | ||
a73f3091 | 2088 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
19d337df JB |
2089 | if (dbg_wlswemul) |
2090 | return (tpacpi_wlsw_emulstate) ? | |
2091 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
a73f3091 | 2092 | #endif |
19d337df JB |
2093 | |
2094 | if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) | |
74941a69 | 2095 | return -EIO; |
19d337df JB |
2096 | |
2097 | return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; | |
74941a69 HMH |
2098 | } |
2099 | ||
dda3ec0a BB |
2100 | static int hotkey_gmms_get_tablet_mode(int s, int *has_tablet_mode) |
2101 | { | |
2102 | int type = (s >> 16) & 0xffff; | |
2103 | int value = s & 0xffff; | |
2104 | int mode = TP_ACPI_MULTI_MODE_INVALID; | |
2105 | int valid_modes = 0; | |
2106 | ||
2107 | if (has_tablet_mode) | |
2108 | *has_tablet_mode = 0; | |
2109 | ||
2110 | switch (type) { | |
2111 | case 1: | |
2112 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2113 | TP_ACPI_MULTI_MODE_TABLET | | |
2114 | TP_ACPI_MULTI_MODE_STAND_TENT; | |
2115 | break; | |
2116 | case 2: | |
2117 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2118 | TP_ACPI_MULTI_MODE_FLAT | | |
2119 | TP_ACPI_MULTI_MODE_TABLET | | |
2120 | TP_ACPI_MULTI_MODE_STAND | | |
2121 | TP_ACPI_MULTI_MODE_TENT; | |
2122 | break; | |
2123 | case 3: | |
2124 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | | |
2125 | TP_ACPI_MULTI_MODE_FLAT; | |
2126 | break; | |
2127 | case 4: | |
dda3ec0a | 2128 | case 5: |
26befef0 BB |
2129 | /* In mode 4, FLAT is not specified as a valid mode. However, |
2130 | * it can be seen at least on the X1 Yoga 2nd Generation. | |
2131 | */ | |
dda3ec0a BB |
2132 | valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | |
2133 | TP_ACPI_MULTI_MODE_FLAT | | |
2134 | TP_ACPI_MULTI_MODE_TABLET | | |
2135 | TP_ACPI_MULTI_MODE_STAND | | |
2136 | TP_ACPI_MULTI_MODE_TENT; | |
2137 | break; | |
2138 | default: | |
2139 | pr_err("Unknown multi mode status type %d with value 0x%04X, please report this to %s\n", | |
2140 | type, value, TPACPI_MAIL); | |
2141 | return 0; | |
2142 | } | |
2143 | ||
2144 | if (has_tablet_mode && (valid_modes & TP_ACPI_MULTI_MODE_TABLET_LIKE)) | |
2145 | *has_tablet_mode = 1; | |
2146 | ||
2147 | switch (value) { | |
2148 | case 1: | |
2149 | mode = TP_ACPI_MULTI_MODE_LAPTOP; | |
2150 | break; | |
2151 | case 2: | |
2152 | mode = TP_ACPI_MULTI_MODE_FLAT; | |
2153 | break; | |
2154 | case 3: | |
2155 | mode = TP_ACPI_MULTI_MODE_TABLET; | |
2156 | break; | |
2157 | case 4: | |
2158 | if (type == 1) | |
2159 | mode = TP_ACPI_MULTI_MODE_STAND_TENT; | |
2160 | else | |
2161 | mode = TP_ACPI_MULTI_MODE_STAND; | |
2162 | break; | |
2163 | case 5: | |
2164 | mode = TP_ACPI_MULTI_MODE_TENT; | |
2165 | break; | |
2166 | default: | |
2167 | if (type == 5 && value == 0xffff) { | |
2168 | pr_warn("Multi mode status is undetected, assuming laptop\n"); | |
2169 | return 0; | |
2170 | } | |
2171 | } | |
2172 | ||
2173 | if (!(mode & valid_modes)) { | |
2174 | pr_err("Unknown/reserved multi mode value 0x%04X for type %d, please report this to %s\n", | |
2175 | value, type, TPACPI_MAIL); | |
2176 | return 0; | |
2177 | } | |
2178 | ||
2179 | return !!(mode & TP_ACPI_MULTI_MODE_TABLET_LIKE); | |
2180 | } | |
2181 | ||
6c231bd5 HMH |
2182 | static int hotkey_get_tablet_mode(int *status) |
2183 | { | |
2184 | int s; | |
2185 | ||
b03f4d49 L |
2186 | switch (tp_features.hotkey_tablet) { |
2187 | case TP_HOTKEY_TABLET_USES_MHKG: | |
2188 | if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) | |
2189 | return -EIO; | |
2190 | ||
2191 | *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); | |
2192 | break; | |
dda3ec0a BB |
2193 | case TP_HOTKEY_TABLET_USES_GMMS: |
2194 | if (!acpi_evalf(hkey_handle, &s, "GMMS", "dd", 0)) | |
b03f4d49 L |
2195 | return -EIO; |
2196 | ||
dda3ec0a | 2197 | *status = hotkey_gmms_get_tablet_mode(s, NULL); |
b03f4d49 L |
2198 | break; |
2199 | default: | |
2200 | break; | |
2201 | } | |
6c231bd5 | 2202 | |
cee47f5a | 2203 | return 0; |
6c231bd5 HMH |
2204 | } |
2205 | ||
b2c985e7 | 2206 | /* |
0d922e3b HMH |
2207 | * Reads current event mask from firmware, and updates |
2208 | * hotkey_acpi_mask accordingly. Also resets any bits | |
2209 | * from hotkey_user_mask that are unavailable to be | |
2210 | * delivered (shadow requirement of the userspace ABI). | |
2211 | * | |
b2c985e7 HMH |
2212 | * Call with hotkey_mutex held |
2213 | */ | |
2214 | static int hotkey_mask_get(void) | |
2215 | { | |
2216 | if (tp_features.hotkey_mask) { | |
0d922e3b HMH |
2217 | u32 m = 0; |
2218 | ||
01e88f25 | 2219 | if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) |
b2c985e7 | 2220 | return -EIO; |
0d922e3b HMH |
2221 | |
2222 | hotkey_acpi_mask = m; | |
2223 | } else { | |
2224 | /* no mask support doesn't mean no event support... */ | |
2225 | hotkey_acpi_mask = hotkey_all_mask; | |
b2c985e7 | 2226 | } |
0d922e3b HMH |
2227 | |
2228 | /* sync userspace-visible mask */ | |
2229 | hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); | |
b2c985e7 HMH |
2230 | |
2231 | return 0; | |
2232 | } | |
2233 | ||
df6dd1b3 | 2234 | static void hotkey_mask_warn_incomplete_mask(void) |
0d922e3b HMH |
2235 | { |
2236 | /* log only what the user can fix... */ | |
2237 | const u32 wantedmask = hotkey_driver_mask & | |
2238 | ~(hotkey_acpi_mask | hotkey_source_mask) & | |
2239 | (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); | |
2240 | ||
2241 | if (wantedmask) | |
0978e012 | 2242 | pr_notice("required events 0x%08x not enabled!\n", wantedmask); |
0d922e3b HMH |
2243 | } |
2244 | ||
b2c985e7 | 2245 | /* |
0d922e3b HMH |
2246 | * Set the firmware mask when supported |
2247 | * | |
2248 | * Also calls hotkey_mask_get to update hotkey_acpi_mask. | |
2249 | * | |
2250 | * NOTE: does not set bits in hotkey_user_mask, but may reset them. | |
2251 | * | |
b2c985e7 HMH |
2252 | * Call with hotkey_mutex held |
2253 | */ | |
2254 | static int hotkey_mask_set(u32 mask) | |
2255 | { | |
2256 | int i; | |
2257 | int rc = 0; | |
2258 | ||
0d922e3b | 2259 | const u32 fwmask = mask & ~hotkey_source_mask; |
92889022 | 2260 | |
0d922e3b | 2261 | if (tp_features.hotkey_mask) { |
b2c985e7 | 2262 | for (i = 0; i < 32; i++) { |
b2c985e7 HMH |
2263 | if (!acpi_evalf(hkey_handle, |
2264 | NULL, "MHKM", "vdd", i + 1, | |
0d922e3b | 2265 | !!(mask & (1 << i)))) { |
b2c985e7 HMH |
2266 | rc = -EIO; |
2267 | break; | |
b2c985e7 HMH |
2268 | } |
2269 | } | |
0d922e3b | 2270 | } |
b2c985e7 | 2271 | |
0d922e3b HMH |
2272 | /* |
2273 | * We *must* make an inconditional call to hotkey_mask_get to | |
2274 | * refresh hotkey_acpi_mask and update hotkey_user_mask | |
2275 | * | |
2276 | * Take the opportunity to also log when we cannot _enable_ | |
2277 | * a given event. | |
2278 | */ | |
2279 | if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { | |
5cac62ac | 2280 | pr_notice("asked for hotkey mask 0x%08x, but firmware forced it to 0x%08x\n", |
0978e012 | 2281 | fwmask, hotkey_acpi_mask); |
b2c985e7 HMH |
2282 | } |
2283 | ||
6b30eb7d HMH |
2284 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
2285 | hotkey_mask_warn_incomplete_mask(); | |
0d922e3b HMH |
2286 | |
2287 | return rc; | |
2288 | } | |
2289 | ||
2290 | /* | |
2291 | * Sets hotkey_user_mask and tries to set the firmware mask | |
2292 | * | |
2293 | * Call with hotkey_mutex held | |
2294 | */ | |
2295 | static int hotkey_user_mask_set(const u32 mask) | |
2296 | { | |
2297 | int rc; | |
2298 | ||
2299 | /* Give people a chance to notice they are doing something that | |
2300 | * is bound to go boom on their users sooner or later */ | |
2301 | if (!tp_warned.hotkey_mask_ff && | |
2302 | (mask == 0xffff || mask == 0xffffff || | |
2303 | mask == 0xffffffff)) { | |
2304 | tp_warned.hotkey_mask_ff = 1; | |
5cac62ac AS |
2305 | pr_notice("setting the hotkey mask to 0x%08x is likely not the best way to go about it\n", |
2306 | mask); | |
2307 | pr_notice("please consider using the driver defaults, and refer to up-to-date thinkpad-acpi documentation\n"); | |
0d922e3b HMH |
2308 | } |
2309 | ||
2310 | /* Try to enable what the user asked for, plus whatever we need. | |
2311 | * this syncs everything but won't enable bits in hotkey_user_mask */ | |
2312 | rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); | |
2313 | ||
2314 | /* Enable the available bits in hotkey_user_mask */ | |
2315 | hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); | |
2316 | ||
b2c985e7 HMH |
2317 | return rc; |
2318 | } | |
2319 | ||
8b468c0c HMH |
2320 | /* |
2321 | * Sets the driver hotkey mask. | |
2322 | * | |
2323 | * Can be called even if the hotkey subdriver is inactive | |
2324 | */ | |
2325 | static int tpacpi_hotkey_driver_mask_set(const u32 mask) | |
2326 | { | |
2327 | int rc; | |
2328 | ||
2329 | /* Do the right thing if hotkey_init has not been called yet */ | |
2330 | if (!tp_features.hotkey) { | |
2331 | hotkey_driver_mask = mask; | |
2332 | return 0; | |
2333 | } | |
2334 | ||
2335 | mutex_lock(&hotkey_mutex); | |
2336 | ||
2337 | HOTKEY_CONFIG_CRITICAL_START | |
2338 | hotkey_driver_mask = mask; | |
b684a363 | 2339 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
8b468c0c | 2340 | hotkey_source_mask |= (mask & ~hotkey_all_mask); |
b684a363 | 2341 | #endif |
8b468c0c HMH |
2342 | HOTKEY_CONFIG_CRITICAL_END |
2343 | ||
2344 | rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & | |
2345 | ~hotkey_source_mask); | |
7f0cf712 HMH |
2346 | hotkey_poll_setup(true); |
2347 | ||
8b468c0c HMH |
2348 | mutex_unlock(&hotkey_mutex); |
2349 | ||
2350 | return rc; | |
2351 | } | |
2352 | ||
b2c985e7 HMH |
2353 | static int hotkey_status_get(int *status) |
2354 | { | |
2355 | if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) | |
2356 | return -EIO; | |
2357 | ||
2358 | return 0; | |
2359 | } | |
2360 | ||
2586d566 | 2361 | static int hotkey_status_set(bool enable) |
b2c985e7 | 2362 | { |
2586d566 | 2363 | if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) |
b2c985e7 HMH |
2364 | return -EIO; |
2365 | ||
2366 | return 0; | |
2367 | } | |
2368 | ||
6c231bd5 | 2369 | static void tpacpi_input_send_tabletsw(void) |
b3ec6f91 | 2370 | { |
6c231bd5 | 2371 | int state; |
b3ec6f91 | 2372 | |
6c231bd5 HMH |
2373 | if (tp_features.hotkey_tablet && |
2374 | !hotkey_get_tablet_mode(&state)) { | |
2375 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
b3ec6f91 | 2376 | |
6c231bd5 HMH |
2377 | input_report_switch(tpacpi_inputdev, |
2378 | SW_TABLET_MODE, !!state); | |
2379 | input_sync(tpacpi_inputdev); | |
2380 | ||
2381 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2382 | } | |
b3ec6f91 HMH |
2383 | } |
2384 | ||
0d922e3b HMH |
2385 | /* Do NOT call without validating scancode first */ |
2386 | static void tpacpi_input_send_key(const unsigned int scancode) | |
b7c8c200 | 2387 | { |
0d922e3b | 2388 | const unsigned int keycode = hotkey_keycode_map[scancode]; |
b7c8c200 HMH |
2389 | |
2390 | if (keycode != KEY_RESERVED) { | |
2391 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
2392 | ||
5ffba7e6 | 2393 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2394 | input_report_key(tpacpi_inputdev, keycode, 1); |
b7c8c200 HMH |
2395 | input_sync(tpacpi_inputdev); |
2396 | ||
5ffba7e6 | 2397 | input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); |
b7c8c200 | 2398 | input_report_key(tpacpi_inputdev, keycode, 0); |
b7c8c200 HMH |
2399 | input_sync(tpacpi_inputdev); |
2400 | ||
2401 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
2402 | } | |
2403 | } | |
2404 | ||
0d922e3b HMH |
2405 | /* Do NOT call without validating scancode first */ |
2406 | static void tpacpi_input_send_key_masked(const unsigned int scancode) | |
2407 | { | |
8b468c0c | 2408 | hotkey_driver_event(scancode); |
0d922e3b HMH |
2409 | if (hotkey_user_mask & (1 << scancode)) |
2410 | tpacpi_input_send_key(scancode); | |
2411 | } | |
2412 | ||
01e88f25 HMH |
2413 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2414 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; | |
2415 | ||
0d922e3b | 2416 | /* Do NOT call without validating scancode first */ |
01e88f25 HMH |
2417 | static void tpacpi_hotkey_send_key(unsigned int scancode) |
2418 | { | |
0d922e3b | 2419 | tpacpi_input_send_key_masked(scancode); |
01e88f25 HMH |
2420 | } |
2421 | ||
0d922e3b | 2422 | static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) |
01e88f25 HMH |
2423 | { |
2424 | u8 d; | |
2425 | ||
2426 | if (m & TP_NVRAM_HKEY_GROUP_HK2) { | |
2427 | d = nvram_read_byte(TP_NVRAM_ADDR_HK2); | |
2428 | n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); | |
2429 | n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); | |
2430 | n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); | |
2431 | n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); | |
2432 | } | |
c685e20d | 2433 | if (m & TP_ACPI_HKEY_KBD_LIGHT_MASK) { |
01e88f25 HMH |
2434 | d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); |
2435 | n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); | |
2436 | } | |
2437 | if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { | |
2438 | d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); | |
2439 | n->displayexp_toggle = | |
2440 | !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); | |
2441 | } | |
2442 | if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { | |
2443 | d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
2444 | n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
2445 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
2446 | n->brightness_toggle = | |
2447 | !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); | |
2448 | } | |
2449 | if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { | |
2450 | d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
2451 | n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) | |
2452 | >> TP_NVRAM_POS_LEVEL_VOLUME; | |
2453 | n->mute = !!(d & TP_NVRAM_MASK_MUTE); | |
2454 | n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); | |
2455 | } | |
2456 | } | |
2457 | ||
2458 | #define TPACPI_COMPARE_KEY(__scancode, __member) \ | |
a4d44ba1 BW |
2459 | do { \ |
2460 | if ((event_mask & (1 << __scancode)) && \ | |
2461 | oldn->__member != newn->__member) \ | |
2462 | tpacpi_hotkey_send_key(__scancode); \ | |
2463 | } while (0) | |
01e88f25 HMH |
2464 | |
2465 | #define TPACPI_MAY_SEND_KEY(__scancode) \ | |
a4d44ba1 BW |
2466 | do { \ |
2467 | if (event_mask & (1 << __scancode)) \ | |
2468 | tpacpi_hotkey_send_key(__scancode); \ | |
2469 | } while (0) | |
2470 | ||
2471 | static void issue_volchange(const unsigned int oldvol, | |
2472 | const unsigned int newvol, | |
2473 | const u32 event_mask) | |
2474 | { | |
2475 | unsigned int i = oldvol; | |
2476 | ||
2477 | while (i > newvol) { | |
2478 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); | |
2479 | i--; | |
5d756db9 | 2480 | } |
a4d44ba1 BW |
2481 | while (i < newvol) { |
2482 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
2483 | i++; | |
2484 | } | |
2485 | } | |
5d756db9 | 2486 | |
a4d44ba1 BW |
2487 | static void issue_brightnesschange(const unsigned int oldbrt, |
2488 | const unsigned int newbrt, | |
2489 | const u32 event_mask) | |
2490 | { | |
2491 | unsigned int i = oldbrt; | |
28999022 | 2492 | |
a4d44ba1 BW |
2493 | while (i > newbrt) { |
2494 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); | |
2495 | i--; | |
28999022 | 2496 | } |
a4d44ba1 BW |
2497 | while (i < newbrt) { |
2498 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
2499 | i++; | |
2500 | } | |
2501 | } | |
2502 | ||
2503 | static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, | |
2504 | struct tp_nvram_state *newn, | |
2505 | const u32 event_mask) | |
2506 | { | |
28999022 | 2507 | |
01e88f25 HMH |
2508 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); |
2509 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); | |
2510 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); | |
2511 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); | |
2512 | ||
2513 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); | |
2514 | ||
2515 | TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); | |
2516 | ||
5d756db9 HMH |
2517 | /* |
2518 | * Handle volume | |
2519 | * | |
2520 | * This code is supposed to duplicate the IBM firmware behaviour: | |
2521 | * - Pressing MUTE issues mute hotkey message, even when already mute | |
2522 | * - Pressing Volume up/down issues volume up/down hotkey messages, | |
c8440336 | 2523 | * even when already at maximum or minimum volume |
5d756db9 HMH |
2524 | * - The act of unmuting issues volume up/down notification, |
2525 | * depending which key was used to unmute | |
2526 | * | |
2527 | * We are constrained to what the NVRAM can tell us, which is not much | |
2528 | * and certainly not enough if more than one volume hotkey was pressed | |
2529 | * since the last poll cycle. | |
2530 | * | |
2531 | * Just to make our life interesting, some newer Lenovo ThinkPads have | |
2532 | * bugs in the BIOS and may fail to update volume_toggle properly. | |
2533 | */ | |
2534 | if (newn->mute) { | |
2535 | /* muted */ | |
2536 | if (!oldn->mute || | |
2537 | oldn->volume_toggle != newn->volume_toggle || | |
2538 | oldn->volume_level != newn->volume_level) { | |
2539 | /* recently muted, or repeated mute keypress, or | |
2540 | * multiple presses ending in mute */ | |
a4d44ba1 BW |
2541 | issue_volchange(oldn->volume_level, newn->volume_level, |
2542 | event_mask); | |
01e88f25 HMH |
2543 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); |
2544 | } | |
5d756db9 HMH |
2545 | } else { |
2546 | /* unmute */ | |
2547 | if (oldn->mute) { | |
2548 | /* recently unmuted, issue 'unmute' keypress */ | |
01e88f25 | 2549 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); |
5d756db9 HMH |
2550 | } |
2551 | if (oldn->volume_level != newn->volume_level) { | |
a4d44ba1 BW |
2552 | issue_volchange(oldn->volume_level, newn->volume_level, |
2553 | event_mask); | |
5d756db9 HMH |
2554 | } else if (oldn->volume_toggle != newn->volume_toggle) { |
2555 | /* repeated vol up/down keypress at end of scale ? */ | |
2556 | if (newn->volume_level == 0) | |
01e88f25 | 2557 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); |
5d756db9 HMH |
2558 | else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX) |
2559 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); | |
01e88f25 HMH |
2560 | } |
2561 | } | |
2562 | ||
2563 | /* handle brightness */ | |
28999022 HMH |
2564 | if (oldn->brightness_level != newn->brightness_level) { |
2565 | issue_brightnesschange(oldn->brightness_level, | |
a4d44ba1 | 2566 | newn->brightness_level, event_mask); |
28999022 HMH |
2567 | } else if (oldn->brightness_toggle != newn->brightness_toggle) { |
2568 | /* repeated key presses that didn't change state */ | |
2569 | if (newn->brightness_level == 0) | |
01e88f25 | 2570 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); |
28999022 HMH |
2571 | else if (newn->brightness_level >= bright_maxlvl |
2572 | && !tp_features.bright_unkfw) | |
2573 | TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); | |
01e88f25 | 2574 | } |
01e88f25 HMH |
2575 | |
2576 | #undef TPACPI_COMPARE_KEY | |
2577 | #undef TPACPI_MAY_SEND_KEY | |
0d922e3b | 2578 | } |
01e88f25 | 2579 | |
0d922e3b HMH |
2580 | /* |
2581 | * Polling driver | |
2582 | * | |
2583 | * We track all events in hotkey_source_mask all the time, since | |
2584 | * most of them are edge-based. We only issue those requested by | |
2585 | * hotkey_user_mask or hotkey_driver_mask, though. | |
2586 | */ | |
01e88f25 HMH |
2587 | static int hotkey_kthread(void *data) |
2588 | { | |
2589 | struct tp_nvram_state s[2]; | |
0d922e3b | 2590 | u32 poll_mask, event_mask; |
01e88f25 HMH |
2591 | unsigned int si, so; |
2592 | unsigned long t; | |
8a32c441 | 2593 | unsigned int change_detector; |
db25f16d | 2594 | unsigned int poll_freq; |
8a32c441 | 2595 | bool was_frozen; |
01e88f25 | 2596 | |
01e88f25 HMH |
2597 | if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) |
2598 | goto exit; | |
2599 | ||
2600 | set_freezable(); | |
2601 | ||
2602 | so = 0; | |
2603 | si = 1; | |
2604 | t = 0; | |
2605 | ||
2606 | /* Initial state for compares */ | |
2607 | mutex_lock(&hotkey_thread_data_mutex); | |
2608 | change_detector = hotkey_config_change; | |
0d922e3b HMH |
2609 | poll_mask = hotkey_source_mask; |
2610 | event_mask = hotkey_source_mask & | |
2611 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2612 | poll_freq = hotkey_poll_freq; |
01e88f25 | 2613 | mutex_unlock(&hotkey_thread_data_mutex); |
0d922e3b | 2614 | hotkey_read_nvram(&s[so], poll_mask); |
01e88f25 | 2615 | |
db25f16d HMH |
2616 | while (!kthread_should_stop()) { |
2617 | if (t == 0) { | |
2618 | if (likely(poll_freq)) | |
2619 | t = 1000/poll_freq; | |
2620 | else | |
2621 | t = 100; /* should never happen... */ | |
2622 | } | |
01e88f25 | 2623 | t = msleep_interruptible(t); |
8a32c441 | 2624 | if (unlikely(kthread_freezable_should_stop(&was_frozen))) |
01e88f25 | 2625 | break; |
8a32c441 TH |
2626 | |
2627 | if (t > 0 && !was_frozen) | |
01e88f25 HMH |
2628 | continue; |
2629 | ||
2630 | mutex_lock(&hotkey_thread_data_mutex); | |
8a32c441 | 2631 | if (was_frozen || hotkey_config_change != change_detector) { |
01e88f25 HMH |
2632 | /* forget old state on thaw or config change */ |
2633 | si = so; | |
2634 | t = 0; | |
2635 | change_detector = hotkey_config_change; | |
2636 | } | |
0d922e3b HMH |
2637 | poll_mask = hotkey_source_mask; |
2638 | event_mask = hotkey_source_mask & | |
2639 | (hotkey_driver_mask | hotkey_user_mask); | |
db25f16d | 2640 | poll_freq = hotkey_poll_freq; |
01e88f25 HMH |
2641 | mutex_unlock(&hotkey_thread_data_mutex); |
2642 | ||
0d922e3b HMH |
2643 | if (likely(poll_mask)) { |
2644 | hotkey_read_nvram(&s[si], poll_mask); | |
01e88f25 HMH |
2645 | if (likely(si != so)) { |
2646 | hotkey_compare_and_issue_event(&s[so], &s[si], | |
0d922e3b | 2647 | event_mask); |
01e88f25 HMH |
2648 | } |
2649 | } | |
2650 | ||
2651 | so = si; | |
2652 | si ^= 1; | |
2653 | } | |
2654 | ||
2655 | exit: | |
01e88f25 HMH |
2656 | return 0; |
2657 | } | |
2658 | ||
db25f16d | 2659 | /* call with hotkey_mutex held */ |
01e88f25 HMH |
2660 | static void hotkey_poll_stop_sync(void) |
2661 | { | |
2662 | if (tpacpi_hotkey_task) { | |
01e88f25 HMH |
2663 | kthread_stop(tpacpi_hotkey_task); |
2664 | tpacpi_hotkey_task = NULL; | |
01e88f25 HMH |
2665 | } |
2666 | } | |
2667 | ||
2668 | /* call with hotkey_mutex held */ | |
7f0cf712 | 2669 | static void hotkey_poll_setup(const bool may_warn) |
01e88f25 | 2670 | { |
0d922e3b HMH |
2671 | const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; |
2672 | const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; | |
db25f16d | 2673 | |
0d922e3b HMH |
2674 | if (hotkey_poll_freq > 0 && |
2675 | (poll_driver_mask || | |
2676 | (poll_user_mask && tpacpi_inputdev->users > 0))) { | |
01e88f25 HMH |
2677 | if (!tpacpi_hotkey_task) { |
2678 | tpacpi_hotkey_task = kthread_run(hotkey_kthread, | |
95e57ab2 | 2679 | NULL, TPACPI_NVRAM_KTHREAD_NAME); |
01e88f25 HMH |
2680 | if (IS_ERR(tpacpi_hotkey_task)) { |
2681 | tpacpi_hotkey_task = NULL; | |
5cac62ac | 2682 | pr_err("could not create kernel thread for hotkey polling\n"); |
01e88f25 HMH |
2683 | } |
2684 | } | |
2685 | } else { | |
2686 | hotkey_poll_stop_sync(); | |
0d922e3b | 2687 | if (may_warn && (poll_driver_mask || poll_user_mask) && |
db25f16d | 2688 | hotkey_poll_freq == 0) { |
5cac62ac | 2689 | pr_notice("hot keys 0x%08x and/or events 0x%08x require polling, which is currently disabled\n", |
0978e012 | 2690 | poll_user_mask, poll_driver_mask); |
01e88f25 HMH |
2691 | } |
2692 | } | |
2693 | } | |
2694 | ||
7f0cf712 | 2695 | static void hotkey_poll_setup_safe(const bool may_warn) |
01e88f25 HMH |
2696 | { |
2697 | mutex_lock(&hotkey_mutex); | |
2698 | hotkey_poll_setup(may_warn); | |
2699 | mutex_unlock(&hotkey_mutex); | |
2700 | } | |
2701 | ||
db25f16d HMH |
2702 | /* call with hotkey_mutex held */ |
2703 | static void hotkey_poll_set_freq(unsigned int freq) | |
2704 | { | |
2705 | if (!freq) | |
2706 | hotkey_poll_stop_sync(); | |
2707 | ||
db25f16d | 2708 | hotkey_poll_freq = freq; |
db25f16d HMH |
2709 | } |
2710 | ||
1bc6b9cd HMH |
2711 | #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ |
2712 | ||
7f0cf712 HMH |
2713 | static void hotkey_poll_setup(const bool __unused) |
2714 | { | |
2715 | } | |
2716 | ||
2717 | static void hotkey_poll_setup_safe(const bool __unused) | |
1bc6b9cd HMH |
2718 | { |
2719 | } | |
2720 | ||
2721 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2722 | ||
01e88f25 HMH |
2723 | static int hotkey_inputdev_open(struct input_dev *dev) |
2724 | { | |
2725 | switch (tpacpi_lifecycle) { | |
2726 | case TPACPI_LIFE_INIT: | |
01e88f25 | 2727 | case TPACPI_LIFE_RUNNING: |
db25f16d | 2728 | hotkey_poll_setup_safe(false); |
01e88f25 | 2729 | return 0; |
b589ea4c HMH |
2730 | case TPACPI_LIFE_EXITING: |
2731 | return -EBUSY; | |
01e88f25 HMH |
2732 | } |
2733 | ||
2734 | /* Should only happen if tpacpi_lifecycle is corrupt */ | |
2735 | BUG(); | |
2736 | return -EBUSY; | |
2737 | } | |
2738 | ||
2739 | static void hotkey_inputdev_close(struct input_dev *dev) | |
2740 | { | |
2741 | /* disable hotkey polling when possible */ | |
b589ea4c | 2742 | if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && |
0d922e3b | 2743 | !(hotkey_source_mask & hotkey_driver_mask)) |
db25f16d | 2744 | hotkey_poll_setup_safe(false); |
01e88f25 | 2745 | } |
01e88f25 | 2746 | |
a0416420 HMH |
2747 | /* sysfs hotkey enable ------------------------------------------------- */ |
2748 | static ssize_t hotkey_enable_show(struct device *dev, | |
2749 | struct device_attribute *attr, | |
2750 | char *buf) | |
2751 | { | |
ae92bd17 | 2752 | int res, status; |
a0416420 | 2753 | |
2586d566 HMH |
2754 | printk_deprecated_attribute("hotkey_enable", |
2755 | "Hotkey reporting is always enabled"); | |
2756 | ||
b2c985e7 | 2757 | res = hotkey_status_get(&status); |
a0416420 HMH |
2758 | if (res) |
2759 | return res; | |
2760 | ||
2761 | return snprintf(buf, PAGE_SIZE, "%d\n", status); | |
2762 | } | |
2763 | ||
2764 | static ssize_t hotkey_enable_store(struct device *dev, | |
2765 | struct device_attribute *attr, | |
2766 | const char *buf, size_t count) | |
2767 | { | |
2768 | unsigned long t; | |
2586d566 HMH |
2769 | |
2770 | printk_deprecated_attribute("hotkey_enable", | |
2771 | "Hotkeys can be disabled through hotkey_mask"); | |
a0416420 HMH |
2772 | |
2773 | if (parse_strtoul(buf, 1, &t)) | |
2774 | return -EINVAL; | |
2775 | ||
2586d566 HMH |
2776 | if (t == 0) |
2777 | return -EPERM; | |
a0416420 | 2778 | |
2586d566 | 2779 | return count; |
a0416420 HMH |
2780 | } |
2781 | ||
b4dd04ac | 2782 | static DEVICE_ATTR_RW(hotkey_enable); |
a0416420 HMH |
2783 | |
2784 | /* sysfs hotkey mask --------------------------------------------------- */ | |
2785 | static ssize_t hotkey_mask_show(struct device *dev, | |
2786 | struct device_attribute *attr, | |
2787 | char *buf) | |
2788 | { | |
0d922e3b | 2789 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); |
a0416420 HMH |
2790 | } |
2791 | ||
2792 | static ssize_t hotkey_mask_store(struct device *dev, | |
2793 | struct device_attribute *attr, | |
2794 | const char *buf, size_t count) | |
2795 | { | |
2796 | unsigned long t; | |
b2c985e7 | 2797 | int res; |
a0416420 | 2798 | |
ae92bd17 | 2799 | if (parse_strtoul(buf, 0xffffffffUL, &t)) |
a0416420 HMH |
2800 | return -EINVAL; |
2801 | ||
7646ea88 | 2802 | if (mutex_lock_killable(&hotkey_mutex)) |
b2c985e7 HMH |
2803 | return -ERESTARTSYS; |
2804 | ||
0d922e3b | 2805 | res = hotkey_user_mask_set(t); |
01e88f25 HMH |
2806 | |
2807 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 2808 | hotkey_poll_setup(true); |
01e88f25 HMH |
2809 | #endif |
2810 | ||
b2c985e7 | 2811 | mutex_unlock(&hotkey_mutex); |
a0416420 | 2812 | |
56e2c200 HMH |
2813 | tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); |
2814 | ||
a0416420 HMH |
2815 | return (res) ? res : count; |
2816 | } | |
2817 | ||
b4dd04ac | 2818 | static DEVICE_ATTR_RW(hotkey_mask); |
a0416420 HMH |
2819 | |
2820 | /* sysfs hotkey bios_enabled ------------------------------------------- */ | |
2821 | static ssize_t hotkey_bios_enabled_show(struct device *dev, | |
2822 | struct device_attribute *attr, | |
2823 | char *buf) | |
2824 | { | |
2586d566 | 2825 | return sprintf(buf, "0\n"); |
a0416420 HMH |
2826 | } |
2827 | ||
b4dd04ac | 2828 | static DEVICE_ATTR_RO(hotkey_bios_enabled); |
a0416420 HMH |
2829 | |
2830 | /* sysfs hotkey bios_mask ---------------------------------------------- */ | |
2831 | static ssize_t hotkey_bios_mask_show(struct device *dev, | |
2832 | struct device_attribute *attr, | |
2833 | char *buf) | |
2834 | { | |
06777be6 HMH |
2835 | printk_deprecated_attribute("hotkey_bios_mask", |
2836 | "This attribute is useless."); | |
ae92bd17 | 2837 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); |
a0416420 HMH |
2838 | } |
2839 | ||
b4dd04ac | 2840 | static DEVICE_ATTR_RO(hotkey_bios_mask); |
a0416420 | 2841 | |
9b010de5 HMH |
2842 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2843 | static ssize_t hotkey_all_mask_show(struct device *dev, | |
2844 | struct device_attribute *attr, | |
2845 | char *buf) | |
2846 | { | |
01e88f25 HMH |
2847 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", |
2848 | hotkey_all_mask | hotkey_source_mask); | |
9b010de5 HMH |
2849 | } |
2850 | ||
b4dd04ac | 2851 | static DEVICE_ATTR_RO(hotkey_all_mask); |
9b010de5 | 2852 | |
0118c2d3 DW |
2853 | /* sysfs hotkey all_mask ----------------------------------------------- */ |
2854 | static ssize_t hotkey_adaptive_all_mask_show(struct device *dev, | |
2855 | struct device_attribute *attr, | |
2856 | char *buf) | |
2857 | { | |
2858 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
2859 | hotkey_adaptive_all_mask | hotkey_source_mask); | |
2860 | } | |
2861 | ||
2862 | static DEVICE_ATTR_RO(hotkey_adaptive_all_mask); | |
2863 | ||
9b010de5 HMH |
2864 | /* sysfs hotkey recommended_mask --------------------------------------- */ |
2865 | static ssize_t hotkey_recommended_mask_show(struct device *dev, | |
2866 | struct device_attribute *attr, | |
2867 | char *buf) | |
2868 | { | |
2869 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", | |
01e88f25 HMH |
2870 | (hotkey_all_mask | hotkey_source_mask) |
2871 | & ~hotkey_reserved_mask); | |
9b010de5 HMH |
2872 | } |
2873 | ||
b4dd04ac | 2874 | static DEVICE_ATTR_RO(hotkey_recommended_mask); |
9b010de5 | 2875 | |
01e88f25 HMH |
2876 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
2877 | ||
2878 | /* sysfs hotkey hotkey_source_mask ------------------------------------- */ | |
2879 | static ssize_t hotkey_source_mask_show(struct device *dev, | |
2880 | struct device_attribute *attr, | |
2881 | char *buf) | |
2882 | { | |
2883 | return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); | |
2884 | } | |
2885 | ||
2886 | static ssize_t hotkey_source_mask_store(struct device *dev, | |
2887 | struct device_attribute *attr, | |
2888 | const char *buf, size_t count) | |
2889 | { | |
2890 | unsigned long t; | |
0d922e3b HMH |
2891 | u32 r_ev; |
2892 | int rc; | |
01e88f25 HMH |
2893 | |
2894 | if (parse_strtoul(buf, 0xffffffffUL, &t) || | |
2895 | ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) | |
2896 | return -EINVAL; | |
2897 | ||
7646ea88 | 2898 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2899 | return -ERESTARTSYS; |
2900 | ||
2901 | HOTKEY_CONFIG_CRITICAL_START | |
2902 | hotkey_source_mask = t; | |
2903 | HOTKEY_CONFIG_CRITICAL_END | |
2904 | ||
0d922e3b HMH |
2905 | rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & |
2906 | ~hotkey_source_mask); | |
db25f16d | 2907 | hotkey_poll_setup(true); |
0d922e3b HMH |
2908 | |
2909 | /* check if events needed by the driver got disabled */ | |
2910 | r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) | |
2911 | & ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; | |
01e88f25 HMH |
2912 | |
2913 | mutex_unlock(&hotkey_mutex); | |
2914 | ||
0d922e3b | 2915 | if (rc < 0) |
5cac62ac | 2916 | pr_err("hotkey_source_mask: failed to update the firmware event mask!\n"); |
0d922e3b HMH |
2917 | |
2918 | if (r_ev) | |
5cac62ac | 2919 | pr_notice("hotkey_source_mask: some important events were disabled: 0x%04x\n", |
0978e012 | 2920 | r_ev); |
0d922e3b | 2921 | |
56e2c200 HMH |
2922 | tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); |
2923 | ||
0d922e3b | 2924 | return (rc < 0) ? rc : count; |
01e88f25 HMH |
2925 | } |
2926 | ||
b4dd04ac | 2927 | static DEVICE_ATTR_RW(hotkey_source_mask); |
01e88f25 HMH |
2928 | |
2929 | /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ | |
2930 | static ssize_t hotkey_poll_freq_show(struct device *dev, | |
2931 | struct device_attribute *attr, | |
2932 | char *buf) | |
2933 | { | |
2934 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); | |
2935 | } | |
2936 | ||
2937 | static ssize_t hotkey_poll_freq_store(struct device *dev, | |
2938 | struct device_attribute *attr, | |
2939 | const char *buf, size_t count) | |
2940 | { | |
2941 | unsigned long t; | |
2942 | ||
2943 | if (parse_strtoul(buf, 25, &t)) | |
2944 | return -EINVAL; | |
2945 | ||
7646ea88 | 2946 | if (mutex_lock_killable(&hotkey_mutex)) |
01e88f25 HMH |
2947 | return -ERESTARTSYS; |
2948 | ||
db25f16d HMH |
2949 | hotkey_poll_set_freq(t); |
2950 | hotkey_poll_setup(true); | |
01e88f25 | 2951 | |
01e88f25 HMH |
2952 | mutex_unlock(&hotkey_mutex); |
2953 | ||
56e2c200 HMH |
2954 | tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); |
2955 | ||
01e88f25 HMH |
2956 | return count; |
2957 | } | |
2958 | ||
b4dd04ac | 2959 | static DEVICE_ATTR_RW(hotkey_poll_freq); |
01e88f25 HMH |
2960 | |
2961 | #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ | |
2962 | ||
50ebec09 | 2963 | /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ |
74941a69 HMH |
2964 | static ssize_t hotkey_radio_sw_show(struct device *dev, |
2965 | struct device_attribute *attr, | |
2966 | char *buf) | |
2967 | { | |
19d337df JB |
2968 | int res; |
2969 | res = hotkey_get_wlsw(); | |
74941a69 HMH |
2970 | if (res < 0) |
2971 | return res; | |
2972 | ||
19d337df JB |
2973 | /* Opportunistic update */ |
2974 | tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); | |
2975 | ||
2976 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
2977 | (res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); | |
74941a69 HMH |
2978 | } |
2979 | ||
b4dd04ac | 2980 | static DEVICE_ATTR_RO(hotkey_radio_sw); |
74941a69 | 2981 | |
50ebec09 HMH |
2982 | static void hotkey_radio_sw_notify_change(void) |
2983 | { | |
2984 | if (tp_features.hotkey_wlsw) | |
2985 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
2986 | "hotkey_radio_sw"); | |
2987 | } | |
2988 | ||
6c231bd5 HMH |
2989 | /* sysfs hotkey tablet mode (pollable) --------------------------------- */ |
2990 | static ssize_t hotkey_tablet_mode_show(struct device *dev, | |
2991 | struct device_attribute *attr, | |
2992 | char *buf) | |
2993 | { | |
2994 | int res, s; | |
2995 | res = hotkey_get_tablet_mode(&s); | |
2996 | if (res < 0) | |
2997 | return res; | |
2998 | ||
2999 | return snprintf(buf, PAGE_SIZE, "%d\n", !!s); | |
3000 | } | |
3001 | ||
b4dd04ac | 3002 | static DEVICE_ATTR_RO(hotkey_tablet_mode); |
6c231bd5 HMH |
3003 | |
3004 | static void hotkey_tablet_mode_notify_change(void) | |
3005 | { | |
3006 | if (tp_features.hotkey_tablet) | |
3007 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, | |
3008 | "hotkey_tablet_mode"); | |
3009 | } | |
3010 | ||
50ebec09 | 3011 | /* sysfs wakeup reason (pollable) -------------------------------------- */ |
a713b4d7 HMH |
3012 | static ssize_t hotkey_wakeup_reason_show(struct device *dev, |
3013 | struct device_attribute *attr, | |
3014 | char *buf) | |
3015 | { | |
3016 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); | |
3017 | } | |
3018 | ||
5fb73bc2 | 3019 | static DEVICE_ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); |
a713b4d7 | 3020 | |
1d5a2b54 | 3021 | static void hotkey_wakeup_reason_notify_change(void) |
50ebec09 | 3022 | { |
0d922e3b HMH |
3023 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
3024 | "wakeup_reason"); | |
50ebec09 HMH |
3025 | } |
3026 | ||
3027 | /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ | |
a713b4d7 HMH |
3028 | static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, |
3029 | struct device_attribute *attr, | |
3030 | char *buf) | |
3031 | { | |
3032 | return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); | |
3033 | } | |
3034 | ||
5fb73bc2 BM |
3035 | static DEVICE_ATTR(wakeup_hotunplug_complete, S_IRUGO, |
3036 | hotkey_wakeup_hotunplug_complete_show, NULL); | |
a713b4d7 | 3037 | |
1d5a2b54 | 3038 | static void hotkey_wakeup_hotunplug_complete_notify_change(void) |
50ebec09 | 3039 | { |
0d922e3b HMH |
3040 | sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, |
3041 | "wakeup_hotunplug_complete"); | |
50ebec09 HMH |
3042 | } |
3043 | ||
b790ceeb BN |
3044 | /* sysfs adaptive kbd mode --------------------------------------------- */ |
3045 | ||
3046 | static int adaptive_keyboard_get_mode(void); | |
3047 | static int adaptive_keyboard_set_mode(int new_mode); | |
3048 | ||
3049 | enum ADAPTIVE_KEY_MODE { | |
3050 | HOME_MODE, | |
3051 | WEB_BROWSER_MODE, | |
3052 | WEB_CONFERENCE_MODE, | |
3053 | FUNCTION_MODE, | |
3054 | LAYFLAT_MODE | |
3055 | }; | |
3056 | ||
3057 | static ssize_t adaptive_kbd_mode_show(struct device *dev, | |
3058 | struct device_attribute *attr, | |
3059 | char *buf) | |
3060 | { | |
abf9dc0d | 3061 | int current_mode; |
b790ceeb BN |
3062 | |
3063 | current_mode = adaptive_keyboard_get_mode(); | |
3064 | if (current_mode < 0) | |
3065 | return current_mode; | |
3066 | ||
3067 | return snprintf(buf, PAGE_SIZE, "%d\n", current_mode); | |
3068 | } | |
3069 | ||
3070 | static ssize_t adaptive_kbd_mode_store(struct device *dev, | |
3071 | struct device_attribute *attr, | |
3072 | const char *buf, size_t count) | |
3073 | { | |
3074 | unsigned long t; | |
3075 | int res; | |
3076 | ||
3077 | if (parse_strtoul(buf, LAYFLAT_MODE, &t)) | |
3078 | return -EINVAL; | |
3079 | ||
3080 | res = adaptive_keyboard_set_mode(t); | |
3081 | return (res < 0) ? res : count; | |
3082 | } | |
3083 | ||
3084 | static DEVICE_ATTR_RW(adaptive_kbd_mode); | |
3085 | ||
3086 | static struct attribute *adaptive_kbd_attributes[] = { | |
3087 | &dev_attr_adaptive_kbd_mode.attr, | |
3088 | NULL | |
3089 | }; | |
3090 | ||
3091 | static const struct attribute_group adaptive_kbd_attr_group = { | |
3092 | .attrs = adaptive_kbd_attributes, | |
3093 | }; | |
3094 | ||
a0416420 HMH |
3095 | /* --------------------------------------------------------------------- */ |
3096 | ||
ff80f137 HMH |
3097 | static struct attribute *hotkey_attributes[] __initdata = { |
3098 | &dev_attr_hotkey_enable.attr, | |
01e88f25 | 3099 | &dev_attr_hotkey_bios_enabled.attr, |
0d922e3b | 3100 | &dev_attr_hotkey_bios_mask.attr, |
5fb73bc2 BM |
3101 | &dev_attr_wakeup_reason.attr, |
3102 | &dev_attr_wakeup_hotunplug_complete.attr, | |
01e88f25 HMH |
3103 | &dev_attr_hotkey_mask.attr, |
3104 | &dev_attr_hotkey_all_mask.attr, | |
0118c2d3 | 3105 | &dev_attr_hotkey_adaptive_all_mask.attr, |
01e88f25 | 3106 | &dev_attr_hotkey_recommended_mask.attr, |
0d922e3b | 3107 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3108 | &dev_attr_hotkey_source_mask.attr, |
3109 | &dev_attr_hotkey_poll_freq.attr, | |
3110 | #endif | |
ff80f137 HMH |
3111 | }; |
3112 | ||
19d337df JB |
3113 | /* |
3114 | * Sync both the hw and sw blocking state of all switches | |
3115 | */ | |
733e27c1 HMH |
3116 | static void tpacpi_send_radiosw_update(void) |
3117 | { | |
3118 | int wlsw; | |
3119 | ||
19d337df JB |
3120 | /* |
3121 | * We must sync all rfkill controllers *before* issuing any | |
3122 | * rfkill input events, or we will race the rfkill core input | |
3123 | * handler. | |
3124 | * | |
c8440336 | 3125 | * tpacpi_inputdev_send_mutex works as a synchronization point |
19d337df JB |
3126 | * for the above. |
3127 | * | |
3128 | * We optimize to avoid numerous calls to hotkey_get_wlsw. | |
3129 | */ | |
3130 | ||
3131 | wlsw = hotkey_get_wlsw(); | |
3132 | ||
3133 | /* Sync hw blocking state first if it is hw-blocked */ | |
3134 | if (wlsw == TPACPI_RFK_RADIO_OFF) | |
3135 | tpacpi_rfk_update_hwblock_state(true); | |
0e74dc26 | 3136 | |
19d337df JB |
3137 | /* Sync sw blocking state */ |
3138 | tpacpi_rfk_update_swstate_all(); | |
3139 | ||
3140 | /* Sync hw blocking state last if it is hw-unblocked */ | |
3141 | if (wlsw == TPACPI_RFK_RADIO_ON) | |
3142 | tpacpi_rfk_update_hwblock_state(false); | |
3143 | ||
3144 | /* Issue rfkill input event for WLSW switch */ | |
3145 | if (!(wlsw < 0)) { | |
733e27c1 HMH |
3146 | mutex_lock(&tpacpi_inputdev_send_mutex); |
3147 | ||
3148 | input_report_switch(tpacpi_inputdev, | |
19d337df | 3149 | SW_RFKILL_ALL, (wlsw > 0)); |
733e27c1 HMH |
3150 | input_sync(tpacpi_inputdev); |
3151 | ||
3152 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3153 | } | |
19d337df JB |
3154 | |
3155 | /* | |
3156 | * this can be unconditional, as we will poll state again | |
3157 | * if userspace uses the notify to read data | |
3158 | */ | |
733e27c1 HMH |
3159 | hotkey_radio_sw_notify_change(); |
3160 | } | |
3161 | ||
9c0a76e1 HMH |
3162 | static void hotkey_exit(void) |
3163 | { | |
3164 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL | |
db25f16d | 3165 | mutex_lock(&hotkey_mutex); |
9c0a76e1 | 3166 | hotkey_poll_stop_sync(); |
db25f16d | 3167 | mutex_unlock(&hotkey_mutex); |
9c0a76e1 HMH |
3168 | #endif |
3169 | ||
3170 | if (hotkey_dev_attributes) | |
3171 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
3172 | ||
4be73005 | 3173 | dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, |
0d922e3b HMH |
3174 | "restoring original HKEY status and mask\n"); |
3175 | /* yes, there is a bitwise or below, we want the | |
3176 | * functions to be called even if one of them fail */ | |
3177 | if (((tp_features.hotkey_mask && | |
3178 | hotkey_mask_set(hotkey_orig_mask)) | | |
3179 | hotkey_status_set(false)) != 0) | |
5cac62ac | 3180 | pr_err("failed to restore hot key mask to BIOS defaults\n"); |
9c0a76e1 HMH |
3181 | } |
3182 | ||
de4c8cc7 HMH |
3183 | static void __init hotkey_unmap(const unsigned int scancode) |
3184 | { | |
3185 | if (hotkey_keycode_map[scancode] != KEY_RESERVED) { | |
3186 | clear_bit(hotkey_keycode_map[scancode], | |
3187 | tpacpi_inputdev->keybit); | |
3188 | hotkey_keycode_map[scancode] = KEY_RESERVED; | |
3189 | } | |
3190 | } | |
3191 | ||
0d922e3b HMH |
3192 | /* |
3193 | * HKEY quirks: | |
3194 | * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 | |
3195 | */ | |
3196 | ||
3197 | #define TPACPI_HK_Q_INIMASK 0x0001 | |
3198 | ||
3199 | static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { | |
3200 | TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3201 | TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ | |
3202 | TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ | |
3203 | TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ | |
3204 | TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ | |
3205 | TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ | |
3206 | TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ | |
3207 | TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ | |
3208 | TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ | |
3209 | TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ | |
3210 | TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ | |
3211 | TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ | |
3212 | TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ | |
3213 | TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ | |
3214 | TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ | |
3215 | TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ | |
3216 | TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ | |
3217 | TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ | |
3218 | TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ | |
3219 | }; | |
3220 | ||
fc6e7568 HMH |
3221 | typedef u16 tpacpi_keymap_entry_t; |
3222 | typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN]; | |
d1e14dca | 3223 | |
b3180028 L |
3224 | static int hotkey_init_tablet_mode(void) |
3225 | { | |
cb2bf251 DH |
3226 | int in_tablet_mode = 0, res; |
3227 | char *type = NULL; | |
b3180028 | 3228 | |
dda3ec0a BB |
3229 | if (acpi_evalf(hkey_handle, &res, "GMMS", "qdd", 0)) { |
3230 | int has_tablet_mode; | |
3231 | ||
3232 | in_tablet_mode = hotkey_gmms_get_tablet_mode(res, | |
3233 | &has_tablet_mode); | |
3234 | if (has_tablet_mode) | |
3235 | tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_GMMS; | |
3236 | type = "GMMS"; | |
3237 | } else if (acpi_evalf(hkey_handle, &res, "MHKG", "qd")) { | |
b03f4d49 | 3238 | /* For X41t, X60t, X61t Tablets... */ |
b3180028 L |
3239 | tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_MHKG; |
3240 | in_tablet_mode = !!(res & TP_HOTKEY_TABLET_MASK); | |
3241 | type = "MHKG"; | |
3242 | } | |
3243 | ||
3244 | if (!tp_features.hotkey_tablet) | |
3245 | return 0; | |
3246 | ||
3247 | pr_info("Tablet mode switch found (type: %s), currently in %s mode\n", | |
3248 | type, in_tablet_mode ? "tablet" : "laptop"); | |
3249 | ||
3250 | res = add_to_attr_set(hotkey_dev_attributes, | |
3251 | &dev_attr_hotkey_tablet_mode.attr); | |
3252 | if (res) | |
3253 | return -1; | |
3254 | ||
3255 | return in_tablet_mode; | |
3256 | } | |
3257 | ||
a5763f22 | 3258 | static int __init hotkey_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 3259 | { |
0f089147 HMH |
3260 | /* Requirements for changing the default keymaps: |
3261 | * | |
3262 | * 1. Many of the keys are mapped to KEY_RESERVED for very | |
3263 | * good reasons. Do not change them unless you have deep | |
3264 | * knowledge on the IBM and Lenovo ThinkPad firmware for | |
3265 | * the various ThinkPad models. The driver behaves | |
3266 | * differently for KEY_RESERVED: such keys have their | |
3267 | * hot key mask *unset* in mask_recommended, and also | |
3268 | * in the initial hot key mask programmed into the | |
3269 | * firmware at driver load time, which means the firm- | |
3270 | * ware may react very differently if you change them to | |
3271 | * something else; | |
3272 | * | |
3273 | * 2. You must be subscribed to the linux-thinkpad and | |
3274 | * ibm-acpi-devel mailing lists, and you should read the | |
3275 | * list archives since 2007 if you want to change the | |
3276 | * keymaps. This requirement exists so that you will | |
3277 | * know the past history of problems with the thinkpad- | |
3278 | * acpi driver keymaps, and also that you will be | |
3279 | * listening to any bug reports; | |
3280 | * | |
3281 | * 3. Do not send thinkpad-acpi specific patches directly to | |
3282 | * for merging, *ever*. Send them to the linux-acpi | |
3283 | * mailinglist for comments. Merging is to be done only | |
3284 | * through acpi-test and the ACPI maintainer. | |
3285 | * | |
3286 | * If the above is too much to ask, don't change the keymap. | |
3287 | * Ask the thinkpad-acpi maintainer to do it, instead. | |
3288 | */ | |
d1e14dca HMH |
3289 | |
3290 | enum keymap_index { | |
3291 | TPACPI_KEYMAP_IBM_GENERIC = 0, | |
3292 | TPACPI_KEYMAP_LENOVO_GENERIC, | |
3293 | }; | |
3294 | ||
3295 | static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = { | |
3296 | /* Generic keymap for IBM ThinkPads */ | |
3297 | [TPACPI_KEYMAP_IBM_GENERIC] = { | |
edf0e0e5 | 3298 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
d1e14dca | 3299 | KEY_FN_F1, KEY_BATTERY, KEY_COFFEE, KEY_SLEEP, |
edf0e0e5 HMH |
3300 | KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
3301 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, | |
0f089147 HMH |
3302 | |
3303 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3304 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3305 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3306 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3307 | |
0d922e3b | 3308 | /* brightness: firmware always reacts to them */ |
e927c08d | 3309 | KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ |
e927c08d | 3310 | KEY_RESERVED, /* 0x10: FN+END (brightness down) */ |
0f089147 HMH |
3311 | |
3312 | /* Thinklight: firmware always react to it */ | |
edf0e0e5 | 3313 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3314 | |
edf0e0e5 HMH |
3315 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3316 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3317 | |
3318 | /* Volume: firmware always react to it and reprograms | |
3319 | * the built-in *extra* mixer. Never map it to control | |
3320 | * another mixer by default. */ | |
e927c08d HMH |
3321 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3322 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3323 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3324 | |
edf0e0e5 | 3325 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3326 | |
edf0e0e5 HMH |
3327 | /* (assignments unknown, please report if found) */ |
3328 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3329 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
6a68d855 BN |
3330 | |
3331 | /* No assignments, only used for Adaptive keyboards. */ | |
3332 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3333 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3334 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3335 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3336 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
696c6523 CK |
3337 | |
3338 | /* No assignment, used for newer Lenovo models */ | |
3339 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3340 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3341 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3342 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3343 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3344 | KEY_UNKNOWN, KEY_UNKNOWN | |
3345 | ||
d1e14dca HMH |
3346 | }, |
3347 | ||
3348 | /* Generic keymap for Lenovo ThinkPads */ | |
3349 | [TPACPI_KEYMAP_LENOVO_GENERIC] = { | |
edf0e0e5 HMH |
3350 | /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ |
3351 | KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, | |
2b754262 | 3352 | KEY_WLAN, KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8, |
edf0e0e5 | 3353 | KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, |
0f089147 HMH |
3354 | |
3355 | /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ | |
edf0e0e5 HMH |
3356 | KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ |
3357 | KEY_UNKNOWN, /* 0x0D: FN+INSERT */ | |
3358 | KEY_UNKNOWN, /* 0x0E: FN+DELETE */ | |
0f089147 | 3359 | |
de4c8cc7 HMH |
3360 | /* These should be enabled --only-- when ACPI video |
3361 | * is disabled (i.e. in "vendor" mode), and are handled | |
3362 | * in a special way by the init code */ | |
3363 | KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ | |
3364 | KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ | |
0f089147 | 3365 | |
edf0e0e5 | 3366 | KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ |
0f089147 | 3367 | |
edf0e0e5 HMH |
3368 | KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ |
3369 | KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ | |
0f089147 HMH |
3370 | |
3371 | /* Volume: z60/z61, T60 (BIOS version?): firmware always | |
3372 | * react to it and reprograms the built-in *extra* mixer. | |
3373 | * Never map it to control another mixer by default. | |
3374 | * | |
3375 | * T60?, T61, R60?, R61: firmware and EC tries to send | |
3376 | * these over the regular keyboard, so these are no-ops, | |
3377 | * but there are still weird bugs re. MUTE, so do not | |
3378 | * change unless you get test reports from all Lenovo | |
3379 | * models. May cause the BIOS to interfere with the | |
3380 | * HDA mixer. | |
3381 | */ | |
e927c08d HMH |
3382 | KEY_RESERVED, /* 0x14: VOLUME UP */ |
3383 | KEY_RESERVED, /* 0x15: VOLUME DOWN */ | |
3384 | KEY_RESERVED, /* 0x16: MUTE */ | |
0f089147 | 3385 | |
edf0e0e5 | 3386 | KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ |
0f089147 | 3387 | |
33009557 AL |
3388 | /* (assignments unknown, please report if found) */ |
3389 | KEY_UNKNOWN, KEY_UNKNOWN, | |
3390 | ||
3391 | /* | |
3392 | * The mic mute button only sends 0x1a. It does not | |
3393 | * automatically mute the mic or change the mute light. | |
3394 | */ | |
3395 | KEY_MICMUTE, /* 0x1a: Mic mute (since ?400 or so) */ | |
3396 | ||
edf0e0e5 | 3397 | /* (assignments unknown, please report if found) */ |
33009557 | 3398 | KEY_UNKNOWN, |
8b9dd4fa HG |
3399 | |
3400 | /* Extra keys in use since the X240 / T440 / T540 */ | |
4beb81d1 | 3401 | KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE, |
6a68d855 BN |
3402 | |
3403 | /* | |
3404 | * These are the adaptive keyboard keycodes for Carbon X1 2014. | |
3405 | * The first item in this list is the Mute button which is | |
3406 | * emitted with 0x103 through | |
3407 | * adaptive_keyboard_hotkey_notify_hotkey() when the sound | |
3408 | * symbol is held. | |
3409 | * We'll need to offset those by 0x20. | |
3410 | */ | |
3411 | KEY_RESERVED, /* Mute held, 0x103 */ | |
3412 | KEY_BRIGHTNESS_MIN, /* Backlight off */ | |
3413 | KEY_RESERVED, /* Clipping tool */ | |
3414 | KEY_RESERVED, /* Cloud */ | |
3415 | KEY_RESERVED, | |
3416 | KEY_VOICECOMMAND, /* Voice */ | |
3417 | KEY_RESERVED, | |
3418 | KEY_RESERVED, /* Gestures */ | |
3419 | KEY_RESERVED, | |
3420 | KEY_RESERVED, | |
3421 | KEY_RESERVED, | |
3422 | KEY_CONFIG, /* Settings */ | |
3423 | KEY_RESERVED, /* New tab */ | |
3424 | KEY_REFRESH, /* Reload */ | |
3425 | KEY_BACK, /* Back */ | |
3426 | KEY_RESERVED, /* Microphone down */ | |
3427 | KEY_RESERVED, /* Microphone up */ | |
3428 | KEY_RESERVED, /* Microphone cancellation */ | |
3429 | KEY_RESERVED, /* Camera mode */ | |
3430 | KEY_RESERVED, /* Rotate display, 0x116 */ | |
696c6523 CK |
3431 | |
3432 | /* | |
3433 | * These are found in 2017 models (e.g. T470s, X270). | |
3434 | * The lowest known value is 0x311, which according to | |
3435 | * the manual should launch a user defined favorite | |
3436 | * application. | |
3437 | * | |
3438 | * The offset for these is TP_ACPI_HOTKEYSCAN_EXTENDED_START, | |
3439 | * corresponding to 0x34. | |
3440 | */ | |
3441 | ||
3442 | /* (assignments unknown, please report if found) */ | |
3443 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3444 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3445 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3446 | KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, | |
3447 | KEY_UNKNOWN, | |
3448 | ||
8055db3a | 3449 | KEY_BOOKMARKS, /* Favorite app, 0x311 */ |
696c6523 | 3450 | KEY_RESERVED, /* Clipping tool */ |
cb5c1978 | 3451 | KEY_CALC, /* Calculator (above numpad, P52) */ |
696c6523 CK |
3452 | KEY_BLUETOOTH, /* Bluetooth */ |
3453 | KEY_KEYBOARD /* Keyboard, 0x315 */ | |
d1e14dca | 3454 | }, |
edf0e0e5 HMH |
3455 | }; |
3456 | ||
d1e14dca HMH |
3457 | static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = { |
3458 | /* Generic maps (fallback) */ | |
3459 | { | |
3460 | .vendor = PCI_VENDOR_ID_IBM, | |
3461 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3462 | .quirks = TPACPI_KEYMAP_IBM_GENERIC, | |
3463 | }, | |
3464 | { | |
3465 | .vendor = PCI_VENDOR_ID_LENOVO, | |
3466 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
3467 | .quirks = TPACPI_KEYMAP_LENOVO_GENERIC, | |
3468 | }, | |
3469 | }; | |
3470 | ||
3471 | #define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t) | |
fc6e7568 | 3472 | #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t) |
edf0e0e5 | 3473 | |
6a38abbf | 3474 | int res, i; |
74941a69 | 3475 | int status; |
1b6521dc | 3476 | int hkeyv; |
d89a727a HMH |
3477 | bool radiosw_state = false; |
3478 | bool tabletsw_state = false; | |
b86c4722 | 3479 | |
0d922e3b | 3480 | unsigned long quirks; |
d1e14dca | 3481 | unsigned long keymap_id; |
0d922e3b | 3482 | |
56e2c200 HMH |
3483 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3484 | "initializing hotkey subdriver\n"); | |
fe08bc4b | 3485 | |
6a38abbf | 3486 | BUG_ON(!tpacpi_inputdev); |
01e88f25 HMH |
3487 | BUG_ON(tpacpi_inputdev->open != NULL || |
3488 | tpacpi_inputdev->close != NULL); | |
6a38abbf | 3489 | |
e0c7dfe7 | 3490 | TPACPI_ACPIHANDLE_INIT(hkey); |
40ca9fdf | 3491 | mutex_init(&hotkey_mutex); |
5fba344c | 3492 | |
01e88f25 | 3493 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
01e88f25 HMH |
3494 | mutex_init(&hotkey_thread_data_mutex); |
3495 | #endif | |
3496 | ||
56b6aeb0 | 3497 | /* hotkey not supported on 570 */ |
d8fd94d9 | 3498 | tp_features.hotkey = hkey_handle != NULL; |
56b6aeb0 | 3499 | |
56e2c200 HMH |
3500 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3501 | "hotkeys are %s\n", | |
d8fd94d9 | 3502 | str_supported(tp_features.hotkey)); |
fe08bc4b | 3503 | |
9c0a76e1 HMH |
3504 | if (!tp_features.hotkey) |
3505 | return 1; | |
a0416420 | 3506 | |
0d922e3b HMH |
3507 | quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, |
3508 | ARRAY_SIZE(tpacpi_hotkey_qtable)); | |
3509 | ||
d64c81c4 HMH |
3510 | tpacpi_disable_brightness_delay(); |
3511 | ||
0d922e3b HMH |
3512 | /* MUST have enough space for all attributes to be added to |
3513 | * hotkey_dev_attributes */ | |
3514 | hotkey_dev_attributes = create_attr_set( | |
3515 | ARRAY_SIZE(hotkey_attributes) + 2, | |
3516 | NULL); | |
9c0a76e1 HMH |
3517 | if (!hotkey_dev_attributes) |
3518 | return -ENOMEM; | |
3519 | res = add_many_to_attr_set(hotkey_dev_attributes, | |
3520 | hotkey_attributes, | |
3521 | ARRAY_SIZE(hotkey_attributes)); | |
3522 | if (res) | |
3523 | goto err_exit; | |
3524 | ||
0d922e3b | 3525 | /* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, |
9c0a76e1 HMH |
3526 | A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking |
3527 | for HKEY interface version 0x100 */ | |
3528 | if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { | |
0118c2d3 DW |
3529 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3530 | "firmware HKEY interface version: 0x%x\n", | |
3531 | hkeyv); | |
3532 | ||
3533 | switch (hkeyv >> 8) { | |
3534 | case 1: | |
9c0a76e1 HMH |
3535 | /* |
3536 | * MHKV 0x100 in A31, R40, R40e, | |
3537 | * T4x, X31, and later | |
3538 | */ | |
0d922e3b HMH |
3539 | |
3540 | /* Paranoia check AND init hotkey_all_mask */ | |
3541 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3542 | "MHKA", "qd")) { | |
0118c2d3 DW |
3543 | pr_err("missing MHKA handler, please report this to %s\n", |
3544 | TPACPI_MAIL); | |
3545 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3546 | hotkey_all_mask = 0x080cU; | |
3547 | } else { | |
3548 | tp_features.hotkey_mask = 1; | |
3549 | } | |
3550 | break; | |
3551 | ||
3552 | case 2: | |
3553 | /* | |
3554 | * MHKV 0x200 in X1, T460s, X260, T560, X1 Tablet (2016) | |
3555 | */ | |
3556 | ||
3557 | /* Paranoia check AND init hotkey_all_mask */ | |
3558 | if (!acpi_evalf(hkey_handle, &hotkey_all_mask, | |
3559 | "MHKA", "dd", 1)) { | |
3560 | pr_err("missing MHKA handler, please report this to %s\n", | |
0d922e3b HMH |
3561 | TPACPI_MAIL); |
3562 | /* Fallback: pre-init for FN+F3,F4,F12 */ | |
3563 | hotkey_all_mask = 0x080cU; | |
3564 | } else { | |
3565 | tp_features.hotkey_mask = 1; | |
3566 | } | |
0118c2d3 DW |
3567 | |
3568 | /* | |
3569 | * Check if we have an adaptive keyboard, like on the | |
3570 | * Lenovo Carbon X1 2014 (2nd Gen). | |
3571 | */ | |
3572 | if (acpi_evalf(hkey_handle, &hotkey_adaptive_all_mask, | |
3573 | "MHKA", "dd", 2)) { | |
3574 | if (hotkey_adaptive_all_mask != 0) { | |
3575 | tp_features.has_adaptive_kbd = true; | |
3576 | res = sysfs_create_group( | |
3577 | &tpacpi_pdev->dev.kobj, | |
3578 | &adaptive_kbd_attr_group); | |
3579 | if (res) | |
3580 | goto err_exit; | |
3581 | } | |
3582 | } else { | |
3583 | tp_features.has_adaptive_kbd = false; | |
3584 | hotkey_adaptive_all_mask = 0x0U; | |
3585 | } | |
3586 | break; | |
3587 | ||
3588 | default: | |
3589 | pr_err("unknown version of the HKEY interface: 0x%x\n", | |
3590 | hkeyv); | |
3591 | pr_err("please report this to %s\n", TPACPI_MAIL); | |
3592 | break; | |
1b6521dc | 3593 | } |
9c0a76e1 | 3594 | } |
56b6aeb0 | 3595 | |
56e2c200 HMH |
3596 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3597 | "hotkey masks are %s\n", | |
9c0a76e1 | 3598 | str_supported(tp_features.hotkey_mask)); |
fe08bc4b | 3599 | |
0d922e3b HMH |
3600 | /* Init hotkey_all_mask if not initialized yet */ |
3601 | if (!tp_features.hotkey_mask && !hotkey_all_mask && | |
3602 | (quirks & TPACPI_HK_Q_INIMASK)) | |
3603 | hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ | |
9b010de5 | 3604 | |
0d922e3b | 3605 | /* Init hotkey_acpi_mask and hotkey_orig_mask */ |
9c0a76e1 | 3606 | if (tp_features.hotkey_mask) { |
0d922e3b HMH |
3607 | /* hotkey_source_mask *must* be zero for |
3608 | * the first hotkey_mask_get to return hotkey_orig_mask */ | |
9c0a76e1 HMH |
3609 | res = hotkey_mask_get(); |
3610 | if (res) | |
3611 | goto err_exit; | |
3612 | ||
0d922e3b HMH |
3613 | hotkey_orig_mask = hotkey_acpi_mask; |
3614 | } else { | |
3615 | hotkey_orig_mask = hotkey_all_mask; | |
3616 | hotkey_acpi_mask = hotkey_all_mask; | |
9c0a76e1 | 3617 | } |
74941a69 | 3618 | |
a73f3091 HMH |
3619 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
3620 | if (dbg_wlswemul) { | |
3621 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3622 | radiosw_state = !!tpacpi_wlsw_emulstate; |
0978e012 | 3623 | pr_info("radio switch emulation enabled\n"); |
a73f3091 HMH |
3624 | } else |
3625 | #endif | |
9c0a76e1 HMH |
3626 | /* Not all thinkpads have a hardware radio switch */ |
3627 | if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { | |
3628 | tp_features.hotkey_wlsw = 1; | |
d89a727a | 3629 | radiosw_state = !!status; |
0978e012 | 3630 | pr_info("radio switch found; radios are %s\n", |
9c0a76e1 | 3631 | enabled(status, 0)); |
3a872080 HMH |
3632 | } |
3633 | if (tp_features.hotkey_wlsw) | |
9c0a76e1 HMH |
3634 | res = add_to_attr_set(hotkey_dev_attributes, |
3635 | &dev_attr_hotkey_radio_sw.attr); | |
74941a69 | 3636 | |
b3180028 L |
3637 | res = hotkey_init_tablet_mode(); |
3638 | if (res < 0) | |
3639 | goto err_exit; | |
3640 | ||
3641 | tabletsw_state = res; | |
6c231bd5 | 3642 | |
b3180028 L |
3643 | res = register_attr_set_with_sysfs(hotkey_dev_attributes, |
3644 | &tpacpi_pdev->dev.kobj); | |
9c0a76e1 HMH |
3645 | if (res) |
3646 | goto err_exit; | |
6a38abbf | 3647 | |
9c0a76e1 | 3648 | /* Set up key map */ |
d1e14dca HMH |
3649 | keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable, |
3650 | ARRAY_SIZE(tpacpi_keymap_qtable)); | |
3651 | BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps)); | |
3652 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3653 | "using keymap number %lu\n", keymap_id); | |
3654 | ||
35b7c808 FH |
3655 | hotkey_keycode_map = kmemdup(&tpacpi_keymaps[keymap_id], |
3656 | TPACPI_HOTKEY_MAP_SIZE, GFP_KERNEL); | |
3657 | if (!hotkey_keycode_map) { | |
3658 | pr_err("failed to allocate memory for key map\n"); | |
3659 | res = -ENOMEM; | |
3660 | goto err_exit; | |
3661 | } | |
edf0e0e5 | 3662 | |
792979c8 | 3663 | input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); |
9c0a76e1 HMH |
3664 | tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; |
3665 | tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; | |
3666 | tpacpi_inputdev->keycode = hotkey_keycode_map; | |
3667 | for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { | |
3668 | if (hotkey_keycode_map[i] != KEY_RESERVED) { | |
792979c8 HMH |
3669 | input_set_capability(tpacpi_inputdev, EV_KEY, |
3670 | hotkey_keycode_map[i]); | |
9c0a76e1 HMH |
3671 | } else { |
3672 | if (i < sizeof(hotkey_reserved_mask)*8) | |
3673 | hotkey_reserved_mask |= 1 << i; | |
6a38abbf | 3674 | } |
9c0a76e1 | 3675 | } |
6a38abbf | 3676 | |
9c0a76e1 | 3677 | if (tp_features.hotkey_wlsw) { |
792979c8 | 3678 | input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); |
d89a727a HMH |
3679 | input_report_switch(tpacpi_inputdev, |
3680 | SW_RFKILL_ALL, radiosw_state); | |
9c0a76e1 HMH |
3681 | } |
3682 | if (tp_features.hotkey_tablet) { | |
792979c8 | 3683 | input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); |
d89a727a HMH |
3684 | input_report_switch(tpacpi_inputdev, |
3685 | SW_TABLET_MODE, tabletsw_state); | |
9c0a76e1 | 3686 | } |
5c29d58f | 3687 | |
9c0a76e1 | 3688 | /* Do not issue duplicate brightness change events to |
77775838 HMH |
3689 | * userspace. tpacpi_detect_brightness_capabilities() must have |
3690 | * been called before this point */ | |
b33c6ce5 | 3691 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
5cac62ac AS |
3692 | pr_info("This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver\n"); |
3693 | pr_notice("Disabling thinkpad-acpi brightness events by default...\n"); | |
9c0a76e1 | 3694 | |
de4c8cc7 HMH |
3695 | /* Disable brightness up/down on Lenovo thinkpads when |
3696 | * ACPI is handling them, otherwise it is plain impossible | |
3697 | * for userspace to do something even remotely sane */ | |
9c0a76e1 HMH |
3698 | hotkey_reserved_mask |= |
3699 | (1 << TP_ACPI_HOTKEYSCAN_FNHOME) | |
3700 | | (1 << TP_ACPI_HOTKEYSCAN_FNEND); | |
de4c8cc7 HMH |
3701 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); |
3702 | hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); | |
9c0a76e1 | 3703 | } |
ff80f137 | 3704 | |
230d8cf2 | 3705 | #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL |
0d922e3b HMH |
3706 | hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK |
3707 | & ~hotkey_all_mask | |
3708 | & ~hotkey_reserved_mask; | |
230d8cf2 HMH |
3709 | |
3710 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3711 | "hotkey source mask 0x%08x, polling freq %u\n", | |
3712 | hotkey_source_mask, hotkey_poll_freq); | |
3713 | #endif | |
3714 | ||
56e2c200 HMH |
3715 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, |
3716 | "enabling firmware HKEY event interface...\n"); | |
2586d566 | 3717 | res = hotkey_status_set(true); |
9c0a76e1 HMH |
3718 | if (res) { |
3719 | hotkey_exit(); | |
3720 | return res; | |
3721 | } | |
0d922e3b HMH |
3722 | res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) |
3723 | | hotkey_driver_mask) | |
3724 | & ~hotkey_source_mask); | |
9c0a76e1 HMH |
3725 | if (res < 0 && res != -ENXIO) { |
3726 | hotkey_exit(); | |
3727 | return res; | |
3728 | } | |
0d922e3b HMH |
3729 | hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) |
3730 | & ~hotkey_reserved_mask; | |
3731 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, | |
3732 | "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", | |
3733 | hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); | |
01e88f25 | 3734 | |
9c0a76e1 HMH |
3735 | tpacpi_inputdev->open = &hotkey_inputdev_open; |
3736 | tpacpi_inputdev->close = &hotkey_inputdev_close; | |
56b6aeb0 | 3737 | |
db25f16d | 3738 | hotkey_poll_setup_safe(true); |
56b6aeb0 | 3739 | |
9c0a76e1 | 3740 | return 0; |
01e88f25 | 3741 | |
9c0a76e1 HMH |
3742 | err_exit: |
3743 | delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); | |
b790ceeb BN |
3744 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, |
3745 | &adaptive_kbd_attr_group); | |
3746 | ||
9c0a76e1 | 3747 | hotkey_dev_attributes = NULL; |
a0416420 | 3748 | |
72a979f0 | 3749 | return (res < 0) ? res : 1; |
56b6aeb0 HMH |
3750 | } |
3751 | ||
3a9d20bd SS |
3752 | /* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser |
3753 | * mode, Web conference mode, Function mode and Lay-flat mode. | |
3754 | * We support Home mode and Function mode currently. | |
3755 | * | |
3756 | * Will consider support rest of modes in future. | |
3757 | * | |
3758 | */ | |
b201a47f | 3759 | static const int adaptive_keyboard_modes[] = { |
3a9d20bd SS |
3760 | HOME_MODE, |
3761 | /* WEB_BROWSER_MODE = 2, | |
3762 | WEB_CONFERENCE_MODE = 3, */ | |
3763 | FUNCTION_MODE | |
3764 | }; | |
3765 | ||
3766 | #define DFR_CHANGE_ROW 0x101 | |
3767 | #define DFR_SHOW_QUICKVIEW_ROW 0x102 | |
6a68d855 | 3768 | #define FIRST_ADAPTIVE_KEY 0x103 |
3a9d20bd SS |
3769 | |
3770 | /* press Fn key a while second, it will switch to Function Mode. Then | |
3771 | * release Fn key, previous mode be restored. | |
3772 | */ | |
3773 | static bool adaptive_keyboard_mode_is_saved; | |
3774 | static int adaptive_keyboard_prev_mode; | |
3775 | ||
f74587fb BN |
3776 | static int adaptive_keyboard_get_mode(void) |
3777 | { | |
3778 | int mode = 0; | |
3779 | ||
3780 | if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) { | |
3781 | pr_err("Cannot read adaptive keyboard mode\n"); | |
3782 | return -EIO; | |
3783 | } | |
3784 | ||
3785 | return mode; | |
3786 | } | |
3787 | ||
3788 | static int adaptive_keyboard_set_mode(int new_mode) | |
3789 | { | |
3790 | if (new_mode < 0 || | |
3791 | new_mode > LAYFLAT_MODE) | |
3792 | return -EINVAL; | |
3793 | ||
3794 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { | |
3795 | pr_err("Cannot set adaptive keyboard mode\n"); | |
3796 | return -EIO; | |
3797 | } | |
3798 | ||
3799 | return 0; | |
3800 | } | |
3801 | ||
3a9d20bd SS |
3802 | static int adaptive_keyboard_get_next_mode(int mode) |
3803 | { | |
3804 | size_t i; | |
3805 | size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1; | |
3806 | ||
3807 | for (i = 0; i <= max_mode; i++) { | |
3808 | if (adaptive_keyboard_modes[i] == mode) | |
3809 | break; | |
3810 | } | |
3811 | ||
3812 | if (i >= max_mode) | |
3813 | i = 0; | |
3814 | else | |
3815 | i++; | |
3816 | ||
3817 | return adaptive_keyboard_modes[i]; | |
3818 | } | |
3819 | ||
3820 | static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode) | |
3821 | { | |
abf9dc0d | 3822 | int current_mode = 0; |
3a9d20bd | 3823 | int new_mode = 0; |
6a68d855 | 3824 | int keycode; |
3a9d20bd SS |
3825 | |
3826 | switch (scancode) { | |
3827 | case DFR_CHANGE_ROW: | |
3828 | if (adaptive_keyboard_mode_is_saved) { | |
3829 | new_mode = adaptive_keyboard_prev_mode; | |
3830 | adaptive_keyboard_mode_is_saved = false; | |
3831 | } else { | |
f74587fb BN |
3832 | current_mode = adaptive_keyboard_get_mode(); |
3833 | if (current_mode < 0) | |
3a9d20bd | 3834 | return false; |
f74587fb BN |
3835 | new_mode = adaptive_keyboard_get_next_mode( |
3836 | current_mode); | |
3a9d20bd SS |
3837 | } |
3838 | ||
f74587fb | 3839 | if (adaptive_keyboard_set_mode(new_mode) < 0) |
3a9d20bd | 3840 | return false; |
3a9d20bd SS |
3841 | |
3842 | return true; | |
3843 | ||
3844 | case DFR_SHOW_QUICKVIEW_ROW: | |
f74587fb BN |
3845 | current_mode = adaptive_keyboard_get_mode(); |
3846 | if (current_mode < 0) | |
3a9d20bd | 3847 | return false; |
3a9d20bd | 3848 | |
f74587fb BN |
3849 | adaptive_keyboard_prev_mode = current_mode; |
3850 | adaptive_keyboard_mode_is_saved = true; | |
3851 | ||
3852 | if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0) | |
3853 | return false; | |
3a9d20bd SS |
3854 | return true; |
3855 | ||
3856 | default: | |
741d98c7 | 3857 | if (scancode < FIRST_ADAPTIVE_KEY || |
696c6523 CK |
3858 | scancode >= FIRST_ADAPTIVE_KEY + |
3859 | TP_ACPI_HOTKEYSCAN_EXTENDED_START - | |
3860 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { | |
6a68d855 | 3861 | pr_info("Unhandled adaptive keyboard key: 0x%x\n", |
5cac62ac | 3862 | scancode); |
6a68d855 BN |
3863 | return false; |
3864 | } | |
149c8c75 CK |
3865 | keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY + |
3866 | TP_ACPI_HOTKEYSCAN_ADAPTIVE_START]; | |
6a68d855 BN |
3867 | if (keycode != KEY_RESERVED) { |
3868 | mutex_lock(&tpacpi_inputdev_send_mutex); | |
3869 | ||
3870 | input_report_key(tpacpi_inputdev, keycode, 1); | |
3871 | input_sync(tpacpi_inputdev); | |
3872 | ||
3873 | input_report_key(tpacpi_inputdev, keycode, 0); | |
3874 | input_sync(tpacpi_inputdev); | |
3875 | ||
3876 | mutex_unlock(&tpacpi_inputdev_send_mutex); | |
3877 | } | |
3878 | return true; | |
3a9d20bd SS |
3879 | } |
3880 | } | |
3881 | ||
3827e7a3 HMH |
3882 | static bool hotkey_notify_hotkey(const u32 hkey, |
3883 | bool *send_acpi_ev, | |
3884 | bool *ignore_acpi_ev) | |
3885 | { | |
3886 | /* 0x1000-0x1FFF: key presses */ | |
3887 | unsigned int scancode = hkey & 0xfff; | |
3888 | *send_acpi_ev = true; | |
3889 | *ignore_acpi_ev = false; | |
3890 | ||
696c6523 CK |
3891 | /* |
3892 | * Original events are in the 0x10XX range, the adaptive keyboard | |
3893 | * found in 2014 X1 Carbon emits events are of 0x11XX. In 2017 | |
3894 | * models, additional keys are emitted through 0x13XX. | |
3895 | */ | |
3896 | switch ((hkey >> 8) & 0xf) { | |
3897 | case 0: | |
3898 | if (scancode > 0 && | |
3899 | scancode <= TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { | |
3900 | /* HKEY event 0x1001 is scancode 0x00 */ | |
3901 | scancode--; | |
3902 | if (!(hotkey_source_mask & (1 << scancode))) { | |
3903 | tpacpi_input_send_key_masked(scancode); | |
3904 | *send_acpi_ev = false; | |
3905 | } else { | |
3906 | *ignore_acpi_ev = true; | |
3907 | } | |
3908 | return true; | |
3827e7a3 | 3909 | } |
696c6523 CK |
3910 | break; |
3911 | ||
3912 | case 1: | |
3a9d20bd | 3913 | return adaptive_keyboard_hotkey_notify_hotkey(scancode); |
696c6523 CK |
3914 | |
3915 | case 3: | |
3916 | /* Extended keycodes start at 0x300 and our offset into the map | |
3917 | * TP_ACPI_HOTKEYSCAN_EXTENDED_START. The calculated scancode | |
3918 | * will be positive, but might not be in the correct range. | |
3919 | */ | |
3920 | scancode -= (0x300 - TP_ACPI_HOTKEYSCAN_EXTENDED_START); | |
3921 | if (scancode >= TP_ACPI_HOTKEYSCAN_EXTENDED_START && | |
3922 | scancode < TPACPI_HOTKEY_MAP_LEN) { | |
3923 | tpacpi_input_send_key(scancode); | |
3924 | return true; | |
3925 | } | |
3926 | break; | |
3827e7a3 | 3927 | } |
696c6523 | 3928 | |
3827e7a3 HMH |
3929 | return false; |
3930 | } | |
3931 | ||
3932 | static bool hotkey_notify_wakeup(const u32 hkey, | |
3933 | bool *send_acpi_ev, | |
3934 | bool *ignore_acpi_ev) | |
3935 | { | |
3936 | /* 0x2000-0x2FFF: Wakeup reason */ | |
3937 | *send_acpi_ev = true; | |
3938 | *ignore_acpi_ev = false; | |
3939 | ||
3940 | switch (hkey) { | |
67bcae6e HMH |
3941 | case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ |
3942 | case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ | |
3827e7a3 HMH |
3943 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; |
3944 | *ignore_acpi_ev = true; | |
3945 | break; | |
3946 | ||
67bcae6e HMH |
3947 | case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ |
3948 | case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ | |
3827e7a3 HMH |
3949 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; |
3950 | *ignore_acpi_ev = true; | |
3951 | break; | |
3952 | ||
67bcae6e HMH |
3953 | case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ |
3954 | case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ | |
0978e012 | 3955 | pr_alert("EMERGENCY WAKEUP: battery almost empty\n"); |
106b4e66 HMH |
3956 | /* how to auto-heal: */ |
3957 | /* 2313: woke up from S3, go to S4/S5 */ | |
3958 | /* 2413: woke up from S4, go to S5 */ | |
3959 | break; | |
3960 | ||
3827e7a3 HMH |
3961 | default: |
3962 | return false; | |
3963 | } | |
3964 | ||
3965 | if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { | |
0978e012 | 3966 | pr_info("woke up due to a hot-unplug request...\n"); |
3827e7a3 HMH |
3967 | hotkey_wakeup_reason_notify_change(); |
3968 | } | |
3969 | return true; | |
3970 | } | |
3971 | ||
a50245af HMH |
3972 | static bool hotkey_notify_dockevent(const u32 hkey, |
3973 | bool *send_acpi_ev, | |
3974 | bool *ignore_acpi_ev) | |
3975 | { | |
3976 | /* 0x4000-0x4FFF: dock-related events */ | |
3977 | *send_acpi_ev = true; | |
3978 | *ignore_acpi_ev = false; | |
3979 | ||
3980 | switch (hkey) { | |
3981 | case TP_HKEY_EV_UNDOCK_ACK: | |
3982 | /* ACPI undock operation completed after wakeup */ | |
3983 | hotkey_autosleep_ack = 1; | |
3984 | pr_info("undocked\n"); | |
3985 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
3986 | return true; | |
3987 | ||
3988 | case TP_HKEY_EV_HOTPLUG_DOCK: /* docked to port replicator */ | |
3989 | pr_info("docked into hotplug port replicator\n"); | |
3990 | return true; | |
3991 | case TP_HKEY_EV_HOTPLUG_UNDOCK: /* undocked from port replicator */ | |
3992 | pr_info("undocked from hotplug port replicator\n"); | |
3993 | return true; | |
3994 | ||
3995 | default: | |
3996 | return false; | |
3997 | } | |
3998 | } | |
3999 | ||
3827e7a3 HMH |
4000 | static bool hotkey_notify_usrevent(const u32 hkey, |
4001 | bool *send_acpi_ev, | |
4002 | bool *ignore_acpi_ev) | |
4003 | { | |
4004 | /* 0x5000-0x5FFF: human interface helpers */ | |
4005 | *send_acpi_ev = true; | |
4006 | *ignore_acpi_ev = false; | |
4007 | ||
4008 | switch (hkey) { | |
67bcae6e HMH |
4009 | case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ |
4010 | case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ | |
3827e7a3 HMH |
4011 | return true; |
4012 | ||
67bcae6e HMH |
4013 | case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ |
4014 | case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ | |
3827e7a3 HMH |
4015 | tpacpi_input_send_tabletsw(); |
4016 | hotkey_tablet_mode_notify_change(); | |
4017 | *send_acpi_ev = false; | |
4018 | return true; | |
4019 | ||
67bcae6e HMH |
4020 | case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ |
4021 | case TP_HKEY_EV_LID_OPEN: /* Lid opened */ | |
4022 | case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ | |
176dd985 | 4023 | /* do not propagate these events */ |
3827e7a3 HMH |
4024 | *ignore_acpi_ev = true; |
4025 | return true; | |
4026 | ||
4027 | default: | |
4028 | return false; | |
4029 | } | |
4030 | } | |
4031 | ||
9ebd9e83 HMH |
4032 | static void thermal_dump_all_sensors(void); |
4033 | ||
2d43f671 | 4034 | static bool hotkey_notify_6xxx(const u32 hkey, |
106b4e66 HMH |
4035 | bool *send_acpi_ev, |
4036 | bool *ignore_acpi_ev) | |
4037 | { | |
2d43f671 | 4038 | /* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */ |
106b4e66 HMH |
4039 | *send_acpi_ev = true; |
4040 | *ignore_acpi_ev = false; | |
4041 | ||
4042 | switch (hkey) { | |
9ebd9e83 | 4043 | case TP_HKEY_EV_THM_TABLE_CHANGED: |
6e6bc5f6 HMH |
4044 | pr_debug("EC reports: Thermal Table has changed\n"); |
4045 | /* recommended action: do nothing, we don't have | |
4046 | * Lenovo ATM information */ | |
4047 | return true; | |
4048 | case TP_HKEY_EV_THM_CSM_COMPLETED: | |
4049 | pr_debug("EC reports: Thermal Control Command set completed (DYTC)\n"); | |
4050 | /* recommended action: do nothing, we don't have | |
4051 | * Lenovo ATM information */ | |
4052 | return true; | |
4053 | case TP_HKEY_EV_THM_TRANSFM_CHANGED: | |
4054 | pr_debug("EC reports: Thermal Transformation changed (GMTS)\n"); | |
9ebd9e83 HMH |
4055 | /* recommended action: do nothing, we don't have |
4056 | * Lenovo ATM information */ | |
4057 | return true; | |
67bcae6e | 4058 | case TP_HKEY_EV_ALARM_BAT_HOT: |
0978e012 | 4059 | pr_crit("THERMAL ALARM: battery is too hot!\n"); |
106b4e66 | 4060 | /* recommended action: warn user through gui */ |
9ebd9e83 | 4061 | break; |
67bcae6e | 4062 | case TP_HKEY_EV_ALARM_BAT_XHOT: |
0978e012 | 4063 | pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n"); |
106b4e66 | 4064 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 4065 | break; |
67bcae6e | 4066 | case TP_HKEY_EV_ALARM_SENSOR_HOT: |
5cac62ac | 4067 | pr_crit("THERMAL ALARM: a sensor reports something is too hot!\n"); |
106b4e66 HMH |
4068 | /* recommended action: warn user through gui, that */ |
4069 | /* some internal component is too hot */ | |
9ebd9e83 | 4070 | break; |
67bcae6e | 4071 | case TP_HKEY_EV_ALARM_SENSOR_XHOT: |
5cac62ac | 4072 | pr_alert("THERMAL EMERGENCY: a sensor reports something is extremely hot!\n"); |
106b4e66 | 4073 | /* recommended action: immediate sleep/hibernate */ |
9ebd9e83 | 4074 | break; |
6f62bc3e RH |
4075 | case TP_HKEY_EV_AC_CHANGED: |
4076 | /* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520: | |
4077 | * AC status changed; can be triggered by plugging or | |
4078 | * unplugging AC adapter, docking or undocking. */ | |
4079 | ||
4080 | /* fallthrough */ | |
2d43f671 HMH |
4081 | |
4082 | case TP_HKEY_EV_KEY_NUMLOCK: | |
4083 | case TP_HKEY_EV_KEY_FN: | |
67ab6248 | 4084 | case TP_HKEY_EV_KEY_FN_ESC: |
2d43f671 HMH |
4085 | /* key press events, we just ignore them as long as the EC |
4086 | * is still reporting them in the normal keyboard stream */ | |
4087 | *send_acpi_ev = false; | |
4088 | *ignore_acpi_ev = true; | |
4089 | return true; | |
4090 | ||
b03f4d49 L |
4091 | case TP_HKEY_EV_TABLET_CHANGED: |
4092 | tpacpi_input_send_tabletsw(); | |
4093 | hotkey_tablet_mode_notify_change(); | |
4094 | *send_acpi_ev = false; | |
edd1ed73 | 4095 | return true; |
b03f4d49 | 4096 | |
587d8628 DR |
4097 | case TP_HKEY_EV_PALM_DETECTED: |
4098 | case TP_HKEY_EV_PALM_UNDETECTED: | |
4099 | /* palm detected hovering the keyboard, forward to user-space | |
4100 | * via netlink for consumption */ | |
4101 | return true; | |
4102 | ||
106b4e66 | 4103 | default: |
fd75ba2b HMH |
4104 | /* report simply as unknown, no sensor dump */ |
4105 | return false; | |
106b4e66 | 4106 | } |
9ebd9e83 HMH |
4107 | |
4108 | thermal_dump_all_sensors(); | |
fd75ba2b | 4109 | return true; |
106b4e66 HMH |
4110 | } |
4111 | ||
56b6aeb0 HMH |
4112 | static void hotkey_notify(struct ibm_struct *ibm, u32 event) |
4113 | { | |
6a38abbf | 4114 | u32 hkey; |
3827e7a3 HMH |
4115 | bool send_acpi_ev; |
4116 | bool ignore_acpi_ev; | |
4117 | bool known_ev; | |
3eea123d HMH |
4118 | |
4119 | if (event != 0x80) { | |
0978e012 | 4120 | pr_err("unknown HKEY notification event %d\n", event); |
3eea123d | 4121 | /* forward it to userspace, maybe it knows how to handle it */ |
35ff8b9f HMH |
4122 | acpi_bus_generate_netlink_event( |
4123 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 4124 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 4125 | event, 0); |
3eea123d HMH |
4126 | return; |
4127 | } | |
4128 | ||
4129 | while (1) { | |
4130 | if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { | |
0978e012 | 4131 | pr_err("failed to retrieve HKEY event\n"); |
3eea123d HMH |
4132 | return; |
4133 | } | |
4134 | ||
4135 | if (hkey == 0) { | |
4136 | /* queue empty */ | |
4137 | return; | |
4138 | } | |
4139 | ||
3827e7a3 HMH |
4140 | send_acpi_ev = true; |
4141 | ignore_acpi_ev = false; | |
56b6aeb0 | 4142 | |
ff80f137 HMH |
4143 | switch (hkey >> 12) { |
4144 | case 1: | |
4145 | /* 0x1000-0x1FFF: key presses */ | |
3827e7a3 HMH |
4146 | known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, |
4147 | &ignore_acpi_ev); | |
ff80f137 | 4148 | break; |
a713b4d7 | 4149 | case 2: |
3827e7a3 HMH |
4150 | /* 0x2000-0x2FFF: Wakeup reason */ |
4151 | known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, | |
4152 | &ignore_acpi_ev); | |
a713b4d7 HMH |
4153 | break; |
4154 | case 3: | |
3827e7a3 | 4155 | /* 0x3000-0x3FFF: bay-related wakeups */ |
bf8b29c8 HMH |
4156 | switch (hkey) { |
4157 | case TP_HKEY_EV_BAYEJ_ACK: | |
a713b4d7 | 4158 | hotkey_autosleep_ack = 1; |
0978e012 | 4159 | pr_info("bay ejected\n"); |
50ebec09 | 4160 | hotkey_wakeup_hotunplug_complete_notify_change(); |
3827e7a3 | 4161 | known_ev = true; |
bf8b29c8 HMH |
4162 | break; |
4163 | case TP_HKEY_EV_OPTDRV_EJ: | |
4164 | /* FIXME: kick libata if SATA link offline */ | |
4165 | known_ev = true; | |
4166 | break; | |
4167 | default: | |
3827e7a3 | 4168 | known_ev = false; |
a713b4d7 HMH |
4169 | } |
4170 | break; | |
4171 | case 4: | |
a50245af HMH |
4172 | /* 0x4000-0x4FFF: dock-related events */ |
4173 | known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev, | |
4174 | &ignore_acpi_ev); | |
a713b4d7 | 4175 | break; |
ff80f137 | 4176 | case 5: |
d1edb2b5 | 4177 | /* 0x5000-0x5FFF: human interface helpers */ |
3827e7a3 HMH |
4178 | known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, |
4179 | &ignore_acpi_ev); | |
ff80f137 | 4180 | break; |
106b4e66 | 4181 | case 6: |
2d43f671 HMH |
4182 | /* 0x6000-0x6FFF: thermal alarms/notices and |
4183 | * keyboard events */ | |
4184 | known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev, | |
106b4e66 HMH |
4185 | &ignore_acpi_ev); |
4186 | break; | |
ff80f137 HMH |
4187 | case 7: |
4188 | /* 0x7000-0x7FFF: misc */ | |
67bcae6e HMH |
4189 | if (tp_features.hotkey_wlsw && |
4190 | hkey == TP_HKEY_EV_RFKILL_CHANGED) { | |
733e27c1 | 4191 | tpacpi_send_radiosw_update(); |
3b64b51d | 4192 | send_acpi_ev = 0; |
3827e7a3 | 4193 | known_ev = true; |
6a38abbf | 4194 | break; |
6a38abbf | 4195 | } |
c77c3577 | 4196 | /* fallthrough - to default */ |
ff80f137 | 4197 | default: |
3827e7a3 | 4198 | known_ev = false; |
3b64b51d | 4199 | } |
3827e7a3 | 4200 | if (!known_ev) { |
0978e012 | 4201 | pr_notice("unhandled HKEY event 0x%04x\n", hkey); |
5cac62ac AS |
4202 | pr_notice("please report the conditions when this event happened to %s\n", |
4203 | TPACPI_MAIL); | |
6a38abbf | 4204 | } |
ff80f137 | 4205 | |
3eea123d | 4206 | /* netlink events */ |
3e5ce914 | 4207 | if (!ignore_acpi_ev && send_acpi_ev) { |
35ff8b9f HMH |
4208 | acpi_bus_generate_netlink_event( |
4209 | ibm->acpi->device->pnp.device_class, | |
e0b36fc5 | 4210 | dev_name(&ibm->acpi->device->dev), |
35ff8b9f | 4211 | event, hkey); |
3eea123d | 4212 | } |
56b6aeb0 HMH |
4213 | } |
4214 | } | |
4215 | ||
fd3c3a42 | 4216 | static void hotkey_suspend(void) |
a713b4d7 HMH |
4217 | { |
4218 | /* Do these on suspend, we get the events on early resume! */ | |
4219 | hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; | |
4220 | hotkey_autosleep_ack = 0; | |
330947b8 SS |
4221 | |
4222 | /* save previous mode of adaptive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4223 | if (tp_features.has_adaptive_kbd) { |
4224 | if (!acpi_evalf(hkey_handle, &adaptive_keyboard_prev_mode, | |
4225 | "GTRW", "dd", 0)) { | |
4226 | pr_err("Cannot read adaptive keyboard mode.\n"); | |
330947b8 SS |
4227 | } |
4228 | } | |
a713b4d7 HMH |
4229 | } |
4230 | ||
5c29d58f HMH |
4231 | static void hotkey_resume(void) |
4232 | { | |
d64c81c4 HMH |
4233 | tpacpi_disable_brightness_delay(); |
4234 | ||
0d922e3b HMH |
4235 | if (hotkey_status_set(true) < 0 || |
4236 | hotkey_mask_set(hotkey_acpi_mask) < 0) | |
5cac62ac | 4237 | pr_err("error while attempting to reset the event firmware interface\n"); |
0d922e3b | 4238 | |
733e27c1 | 4239 | tpacpi_send_radiosw_update(); |
6c231bd5 | 4240 | hotkey_tablet_mode_notify_change(); |
50ebec09 HMH |
4241 | hotkey_wakeup_reason_notify_change(); |
4242 | hotkey_wakeup_hotunplug_complete_notify_change(); | |
db25f16d | 4243 | hotkey_poll_setup_safe(false); |
330947b8 SS |
4244 | |
4245 | /* restore previous mode of adapive keyboard of X1 Carbon */ | |
f23a5bcb BN |
4246 | if (tp_features.has_adaptive_kbd) { |
4247 | if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", | |
4248 | adaptive_keyboard_prev_mode)) { | |
4249 | pr_err("Cannot set adaptive keyboard mode.\n"); | |
330947b8 SS |
4250 | } |
4251 | } | |
5c29d58f HMH |
4252 | } |
4253 | ||
a0416420 | 4254 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4255 | static int hotkey_read(struct seq_file *m) |
1da177e4 | 4256 | { |
ae92bd17 | 4257 | int res, status; |
1da177e4 | 4258 | |
d8fd94d9 | 4259 | if (!tp_features.hotkey) { |
887965e6 AD |
4260 | seq_printf(m, "status:\t\tnot supported\n"); |
4261 | return 0; | |
78f81cc4 BD |
4262 | } |
4263 | ||
7646ea88 | 4264 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4265 | return -ERESTARTSYS; |
b2c985e7 HMH |
4266 | res = hotkey_status_get(&status); |
4267 | if (!res) | |
4268 | res = hotkey_mask_get(); | |
40ca9fdf | 4269 | mutex_unlock(&hotkey_mutex); |
b86c4722 HMH |
4270 | if (res) |
4271 | return res; | |
1da177e4 | 4272 | |
887965e6 | 4273 | seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); |
0d922e3b | 4274 | if (hotkey_all_mask) { |
887965e6 AD |
4275 | seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); |
4276 | seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); | |
1da177e4 | 4277 | } else { |
887965e6 AD |
4278 | seq_printf(m, "mask:\t\tnot supported\n"); |
4279 | seq_printf(m, "commands:\tenable, disable, reset\n"); | |
1da177e4 LT |
4280 | } |
4281 | ||
887965e6 | 4282 | return 0; |
1da177e4 LT |
4283 | } |
4284 | ||
406e988b | 4285 | static void hotkey_enabledisable_warn(bool enable) |
2586d566 HMH |
4286 | { |
4287 | tpacpi_log_usertask("procfs hotkey enable/disable"); | |
406e988b | 4288 | if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), |
5cac62ac AS |
4289 | pr_fmt("hotkey enable/disable functionality has been removed from the driver. Hotkeys are always enabled.\n"))) |
4290 | pr_err("Please remove the hotkey=enable module parameter, it is deprecated. Hotkeys are always enabled.\n"); | |
2586d566 HMH |
4291 | } |
4292 | ||
78f81cc4 | 4293 | static int hotkey_write(char *buf) |
1da177e4 | 4294 | { |
2586d566 | 4295 | int res; |
ae92bd17 | 4296 | u32 mask; |
1da177e4 | 4297 | char *cmd; |
1da177e4 | 4298 | |
d8fd94d9 | 4299 | if (!tp_features.hotkey) |
1da177e4 LT |
4300 | return -ENODEV; |
4301 | ||
7646ea88 | 4302 | if (mutex_lock_killable(&hotkey_mutex)) |
fc589a3c | 4303 | return -ERESTARTSYS; |
40ca9fdf | 4304 | |
0d922e3b | 4305 | mask = hotkey_user_mask; |
78f81cc4 | 4306 | |
40ca9fdf | 4307 | res = 0; |
1da177e4 LT |
4308 | while ((cmd = next_cmd(&buf))) { |
4309 | if (strlencmp(cmd, "enable") == 0) { | |
406e988b | 4310 | hotkey_enabledisable_warn(1); |
1da177e4 | 4311 | } else if (strlencmp(cmd, "disable") == 0) { |
406e988b | 4312 | hotkey_enabledisable_warn(0); |
2586d566 | 4313 | res = -EPERM; |
1da177e4 | 4314 | } else if (strlencmp(cmd, "reset") == 0) { |
20c9aa46 HMH |
4315 | mask = (hotkey_all_mask | hotkey_source_mask) |
4316 | & ~hotkey_reserved_mask; | |
1da177e4 LT |
4317 | } else if (sscanf(cmd, "0x%x", &mask) == 1) { |
4318 | /* mask set */ | |
4319 | } else if (sscanf(cmd, "%x", &mask) == 1) { | |
4320 | /* mask set */ | |
40ca9fdf HMH |
4321 | } else { |
4322 | res = -EINVAL; | |
4323 | goto errexit; | |
4324 | } | |
1da177e4 | 4325 | } |
56e2c200 | 4326 | |
0d922e3b | 4327 | if (!res) { |
56e2c200 HMH |
4328 | tpacpi_disclose_usertask("procfs hotkey", |
4329 | "set mask to 0x%08x\n", mask); | |
0d922e3b HMH |
4330 | res = hotkey_user_mask_set(mask); |
4331 | } | |
1da177e4 | 4332 | |
40ca9fdf HMH |
4333 | errexit: |
4334 | mutex_unlock(&hotkey_mutex); | |
4335 | return res; | |
78f81cc4 | 4336 | } |
1da177e4 | 4337 | |
1ba90e3a | 4338 | static const struct acpi_device_id ibm_htk_device_ids[] = { |
9fbdaeb4 MI |
4339 | {TPACPI_ACPI_IBM_HKEY_HID, 0}, |
4340 | {TPACPI_ACPI_LENOVO_HKEY_HID, 0}, | |
a3c42a46 | 4341 | {TPACPI_ACPI_LENOVO_HKEY_V2_HID, 0}, |
1ba90e3a TR |
4342 | {"", 0}, |
4343 | }; | |
4344 | ||
8d376cd6 | 4345 | static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { |
1ba90e3a | 4346 | .hid = ibm_htk_device_ids, |
8d376cd6 HMH |
4347 | .notify = hotkey_notify, |
4348 | .handle = &hkey_handle, | |
4349 | .type = ACPI_DEVICE_NOTIFY, | |
4350 | }; | |
4351 | ||
a5763f22 HMH |
4352 | static struct ibm_struct hotkey_driver_data = { |
4353 | .name = "hotkey", | |
a5763f22 HMH |
4354 | .read = hotkey_read, |
4355 | .write = hotkey_write, | |
4356 | .exit = hotkey_exit, | |
5c29d58f | 4357 | .resume = hotkey_resume, |
a713b4d7 | 4358 | .suspend = hotkey_suspend, |
8d376cd6 | 4359 | .acpi = &ibm_hotkey_acpidriver, |
a5763f22 HMH |
4360 | }; |
4361 | ||
56b6aeb0 HMH |
4362 | /************************************************************************* |
4363 | * Bluetooth subdriver | |
4364 | */ | |
1da177e4 | 4365 | |
f74a27d4 HMH |
4366 | enum { |
4367 | /* ACPI GBDC/SBDC bits */ | |
4368 | TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ | |
4369 | TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ | |
153f8220 | 4370 | TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: |
08fedfc9 | 4371 | 0 = disable, 1 = enable */ |
153f8220 HMH |
4372 | }; |
4373 | ||
4374 | enum { | |
4375 | /* ACPI \BLTH commands */ | |
4376 | TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ | |
4377 | TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ | |
4378 | TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ | |
4379 | TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ | |
4380 | TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ | |
f74a27d4 HMH |
4381 | }; |
4382 | ||
bee4cd9b HMH |
4383 | #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" |
4384 | ||
19d337df | 4385 | static int bluetooth_get_status(void) |
07431ec8 HMH |
4386 | { |
4387 | int status; | |
4388 | ||
a73f3091 HMH |
4389 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4390 | if (dbg_bluetoothemul) | |
4391 | return (tpacpi_bluetooth_emulstate) ? | |
19d337df | 4392 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4393 | #endif |
4394 | ||
07431ec8 HMH |
4395 | if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) |
4396 | return -EIO; | |
4397 | ||
0e74dc26 | 4398 | return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? |
19d337df | 4399 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
07431ec8 HMH |
4400 | } |
4401 | ||
19d337df | 4402 | static int bluetooth_set_status(enum tpacpi_rfkill_state state) |
0e74dc26 HMH |
4403 | { |
4404 | int status; | |
4405 | ||
bee4cd9b | 4406 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4407 | "will attempt to %s bluetooth\n", |
4408 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4409 | |
a73f3091 HMH |
4410 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4411 | if (dbg_bluetoothemul) { | |
19d337df | 4412 | tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4413 | return 0; |
4414 | } | |
4415 | #endif | |
4416 | ||
19d337df | 4417 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4418 | status = TP_ACPI_BLUETOOTH_RADIOSSW |
4419 | | TP_ACPI_BLUETOOTH_RESUMECTRL; | |
4420 | else | |
4421 | status = 0; | |
19d337df | 4422 | |
07431ec8 HMH |
4423 | if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) |
4424 | return -EIO; | |
4425 | ||
4426 | return 0; | |
4427 | } | |
f74a27d4 | 4428 | |
d3a6ade4 HMH |
4429 | /* sysfs bluetooth enable ---------------------------------------------- */ |
4430 | static ssize_t bluetooth_enable_show(struct device *dev, | |
4431 | struct device_attribute *attr, | |
4432 | char *buf) | |
4433 | { | |
19d337df JB |
4434 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, |
4435 | attr, buf); | |
d3a6ade4 HMH |
4436 | } |
4437 | ||
4438 | static ssize_t bluetooth_enable_store(struct device *dev, | |
4439 | struct device_attribute *attr, | |
4440 | const char *buf, size_t count) | |
4441 | { | |
19d337df JB |
4442 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, |
4443 | attr, buf, count); | |
d3a6ade4 HMH |
4444 | } |
4445 | ||
b4dd04ac | 4446 | static DEVICE_ATTR_RW(bluetooth_enable); |
d3a6ade4 HMH |
4447 | |
4448 | /* --------------------------------------------------------------------- */ | |
4449 | ||
4450 | static struct attribute *bluetooth_attributes[] = { | |
4451 | &dev_attr_bluetooth_enable.attr, | |
4452 | NULL | |
4453 | }; | |
4454 | ||
4455 | static const struct attribute_group bluetooth_attr_group = { | |
d3a6ade4 HMH |
4456 | .attrs = bluetooth_attributes, |
4457 | }; | |
4458 | ||
19d337df JB |
4459 | static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { |
4460 | .get_status = bluetooth_get_status, | |
4461 | .set_status = bluetooth_set_status, | |
4462 | }; | |
0e74dc26 | 4463 | |
90d9d3c7 HMH |
4464 | static void bluetooth_shutdown(void) |
4465 | { | |
4466 | /* Order firmware to save current state to NVRAM */ | |
4467 | if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", | |
4468 | TP_ACPI_BLTH_SAVE_STATE)) | |
0978e012 | 4469 | pr_notice("failed to save bluetooth state to NVRAM\n"); |
bee4cd9b HMH |
4470 | else |
4471 | vdbg_printk(TPACPI_DBG_RFKILL, | |
1f01358c | 4472 | "bluetooth state saved to NVRAM\n"); |
90d9d3c7 HMH |
4473 | } |
4474 | ||
07431ec8 HMH |
4475 | static void bluetooth_exit(void) |
4476 | { | |
4477 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4478 | &bluetooth_attr_group); | |
19d337df JB |
4479 | |
4480 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); | |
4481 | ||
4482 | bluetooth_shutdown(); | |
07431ec8 HMH |
4483 | } |
4484 | ||
f7db839f JY |
4485 | static const struct dmi_system_id bt_fwbug_list[] __initconst = { |
4486 | { | |
4487 | .ident = "ThinkPad E485", | |
4488 | .matches = { | |
4489 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4490 | DMI_MATCH(DMI_BOARD_NAME, "20KU"), | |
4491 | }, | |
4492 | }, | |
4493 | { | |
4494 | .ident = "ThinkPad E585", | |
4495 | .matches = { | |
4496 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4497 | DMI_MATCH(DMI_BOARD_NAME, "20KV"), | |
4498 | }, | |
4499 | }, | |
4500 | { | |
4501 | .ident = "ThinkPad A285 - 20MW", | |
4502 | .matches = { | |
4503 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4504 | DMI_MATCH(DMI_BOARD_NAME, "20MW"), | |
4505 | }, | |
4506 | }, | |
4507 | { | |
4508 | .ident = "ThinkPad A285 - 20MX", | |
4509 | .matches = { | |
4510 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4511 | DMI_MATCH(DMI_BOARD_NAME, "20MX"), | |
4512 | }, | |
4513 | }, | |
4514 | { | |
4515 | .ident = "ThinkPad A485 - 20MU", | |
4516 | .matches = { | |
4517 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4518 | DMI_MATCH(DMI_BOARD_NAME, "20MU"), | |
4519 | }, | |
4520 | }, | |
4521 | { | |
4522 | .ident = "ThinkPad A485 - 20MV", | |
4523 | .matches = { | |
4524 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
4525 | DMI_MATCH(DMI_BOARD_NAME, "20MV"), | |
4526 | }, | |
4527 | }, | |
4528 | {} | |
4529 | }; | |
4530 | ||
4531 | static const struct pci_device_id fwbug_cards_ids[] __initconst = { | |
4532 | { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24F3) }, | |
4533 | { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24FD) }, | |
4534 | { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2526) }, | |
4535 | {} | |
4536 | }; | |
4537 | ||
4538 | ||
4539 | static int __init have_bt_fwbug(void) | |
4540 | { | |
4541 | /* | |
4542 | * Some AMD based ThinkPads have a firmware bug that calling | |
4543 | * "GBDC" will cause bluetooth on Intel wireless cards blocked | |
4544 | */ | |
4545 | if (dmi_check_system(bt_fwbug_list) && pci_dev_present(fwbug_cards_ids)) { | |
4546 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, | |
4547 | FW_BUG "disable bluetooth subdriver for Intel cards\n"); | |
4548 | return 1; | |
4549 | } else | |
4550 | return 0; | |
4551 | } | |
4552 | ||
a5763f22 | 4553 | static int __init bluetooth_init(struct ibm_init_struct *iibm) |
1da177e4 | 4554 | { |
d3a6ade4 | 4555 | int res; |
d6fdd1e9 HMH |
4556 | int status = 0; |
4557 | ||
bee4cd9b HMH |
4558 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4559 | "initializing bluetooth subdriver\n"); | |
fe08bc4b | 4560 | |
e0c7dfe7 | 4561 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4562 | |
78f81cc4 BD |
4563 | /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
4564 | G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ | |
f7db839f | 4565 | tp_features.bluetooth = !have_bt_fwbug() && hkey_handle && |
d6fdd1e9 HMH |
4566 | acpi_evalf(hkey_handle, &status, "GBDC", "qd"); |
4567 | ||
bee4cd9b HMH |
4568 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4569 | "bluetooth is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4570 | str_supported(tp_features.bluetooth), |
4571 | status); | |
4572 | ||
a73f3091 HMH |
4573 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4574 | if (dbg_bluetoothemul) { | |
4575 | tp_features.bluetooth = 1; | |
0978e012 | 4576 | pr_info("bluetooth switch emulation enabled\n"); |
a73f3091 HMH |
4577 | } else |
4578 | #endif | |
3a872080 HMH |
4579 | if (tp_features.bluetooth && |
4580 | !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { | |
4581 | /* no bluetooth hardware present in system */ | |
4582 | tp_features.bluetooth = 0; | |
bee4cd9b | 4583 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4584 | "bluetooth hardware not installed\n"); |
4585 | } | |
4586 | ||
0e74dc26 HMH |
4587 | if (!tp_features.bluetooth) |
4588 | return 1; | |
4589 | ||
0e74dc26 | 4590 | res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, |
19d337df | 4591 | &bluetooth_tprfk_ops, |
0e74dc26 | 4592 | RFKILL_TYPE_BLUETOOTH, |
bee4cd9b | 4593 | TPACPI_RFK_BLUETOOTH_SW_NAME, |
19d337df JB |
4594 | true); |
4595 | if (res) | |
4596 | return res; | |
4597 | ||
4598 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4599 | &bluetooth_attr_group); | |
0e74dc26 | 4600 | if (res) { |
19d337df | 4601 | tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); |
0e74dc26 | 4602 | return res; |
d6fdd1e9 | 4603 | } |
fe08bc4b | 4604 | |
0e74dc26 | 4605 | return 0; |
1da177e4 LT |
4606 | } |
4607 | ||
d3a6ade4 | 4608 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4609 | static int bluetooth_read(struct seq_file *m) |
1da177e4 | 4610 | { |
887965e6 | 4611 | return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); |
1da177e4 LT |
4612 | } |
4613 | ||
78f81cc4 | 4614 | static int bluetooth_write(char *buf) |
1da177e4 | 4615 | { |
19d337df | 4616 | return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); |
1da177e4 LT |
4617 | } |
4618 | ||
a5763f22 HMH |
4619 | static struct ibm_struct bluetooth_driver_data = { |
4620 | .name = "bluetooth", | |
4621 | .read = bluetooth_read, | |
4622 | .write = bluetooth_write, | |
d3a6ade4 | 4623 | .exit = bluetooth_exit, |
90d9d3c7 | 4624 | .shutdown = bluetooth_shutdown, |
a5763f22 HMH |
4625 | }; |
4626 | ||
56b6aeb0 HMH |
4627 | /************************************************************************* |
4628 | * Wan subdriver | |
4629 | */ | |
4630 | ||
f74a27d4 HMH |
4631 | enum { |
4632 | /* ACPI GWAN/SWAN bits */ | |
4633 | TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ | |
4634 | TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ | |
153f8220 | 4635 | TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: |
08fedfc9 | 4636 | 0 = disable, 1 = enable */ |
f74a27d4 HMH |
4637 | }; |
4638 | ||
bee4cd9b HMH |
4639 | #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" |
4640 | ||
19d337df | 4641 | static int wan_get_status(void) |
07431ec8 HMH |
4642 | { |
4643 | int status; | |
4644 | ||
a73f3091 HMH |
4645 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4646 | if (dbg_wwanemul) | |
4647 | return (tpacpi_wwan_emulstate) ? | |
19d337df | 4648 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
a73f3091 HMH |
4649 | #endif |
4650 | ||
07431ec8 HMH |
4651 | if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) |
4652 | return -EIO; | |
4653 | ||
0e74dc26 | 4654 | return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? |
19d337df | 4655 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0e74dc26 HMH |
4656 | } |
4657 | ||
19d337df | 4658 | static int wan_set_status(enum tpacpi_rfkill_state state) |
07431ec8 HMH |
4659 | { |
4660 | int status; | |
4661 | ||
bee4cd9b | 4662 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4663 | "will attempt to %s wwan\n", |
4664 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4665 | |
a73f3091 HMH |
4666 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4667 | if (dbg_wwanemul) { | |
19d337df | 4668 | tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); |
a73f3091 HMH |
4669 | return 0; |
4670 | } | |
4671 | #endif | |
4672 | ||
19d337df | 4673 | if (state == TPACPI_RFK_RADIO_ON) |
08fedfc9 HMH |
4674 | status = TP_ACPI_WANCARD_RADIOSSW |
4675 | | TP_ACPI_WANCARD_RESUMECTRL; | |
4676 | else | |
4677 | status = 0; | |
19d337df | 4678 | |
07431ec8 HMH |
4679 | if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) |
4680 | return -EIO; | |
4681 | ||
4682 | return 0; | |
4683 | } | |
f74a27d4 | 4684 | |
d3a6ade4 HMH |
4685 | /* sysfs wan enable ---------------------------------------------------- */ |
4686 | static ssize_t wan_enable_show(struct device *dev, | |
4687 | struct device_attribute *attr, | |
4688 | char *buf) | |
4689 | { | |
19d337df JB |
4690 | return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, |
4691 | attr, buf); | |
d3a6ade4 HMH |
4692 | } |
4693 | ||
4694 | static ssize_t wan_enable_store(struct device *dev, | |
4695 | struct device_attribute *attr, | |
4696 | const char *buf, size_t count) | |
4697 | { | |
19d337df JB |
4698 | return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, |
4699 | attr, buf, count); | |
d3a6ade4 HMH |
4700 | } |
4701 | ||
5fb73bc2 BM |
4702 | static DEVICE_ATTR(wwan_enable, S_IWUSR | S_IRUGO, |
4703 | wan_enable_show, wan_enable_store); | |
d3a6ade4 HMH |
4704 | |
4705 | /* --------------------------------------------------------------------- */ | |
4706 | ||
4707 | static struct attribute *wan_attributes[] = { | |
5fb73bc2 | 4708 | &dev_attr_wwan_enable.attr, |
d3a6ade4 HMH |
4709 | NULL |
4710 | }; | |
4711 | ||
4712 | static const struct attribute_group wan_attr_group = { | |
d3a6ade4 HMH |
4713 | .attrs = wan_attributes, |
4714 | }; | |
4715 | ||
19d337df JB |
4716 | static const struct tpacpi_rfk_ops wan_tprfk_ops = { |
4717 | .get_status = wan_get_status, | |
4718 | .set_status = wan_set_status, | |
4719 | }; | |
0e74dc26 | 4720 | |
90d9d3c7 HMH |
4721 | static void wan_shutdown(void) |
4722 | { | |
4723 | /* Order firmware to save current state to NVRAM */ | |
4724 | if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", | |
4725 | TP_ACPI_WGSV_SAVE_STATE)) | |
0978e012 | 4726 | pr_notice("failed to save WWAN state to NVRAM\n"); |
bee4cd9b HMH |
4727 | else |
4728 | vdbg_printk(TPACPI_DBG_RFKILL, | |
4729 | "WWAN state saved to NVRAM\n"); | |
90d9d3c7 HMH |
4730 | } |
4731 | ||
07431ec8 HMH |
4732 | static void wan_exit(void) |
4733 | { | |
4734 | sysfs_remove_group(&tpacpi_pdev->dev.kobj, | |
4735 | &wan_attr_group); | |
19d337df JB |
4736 | |
4737 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); | |
4738 | ||
4739 | wan_shutdown(); | |
07431ec8 HMH |
4740 | } |
4741 | ||
a5763f22 | 4742 | static int __init wan_init(struct ibm_init_struct *iibm) |
42adb53c | 4743 | { |
d3a6ade4 | 4744 | int res; |
d6fdd1e9 HMH |
4745 | int status = 0; |
4746 | ||
bee4cd9b HMH |
4747 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4748 | "initializing wan subdriver\n"); | |
fe08bc4b | 4749 | |
e0c7dfe7 | 4750 | TPACPI_ACPIHANDLE_INIT(hkey); |
5fba344c | 4751 | |
d8fd94d9 | 4752 | tp_features.wan = hkey_handle && |
d6fdd1e9 HMH |
4753 | acpi_evalf(hkey_handle, &status, "GWAN", "qd"); |
4754 | ||
bee4cd9b HMH |
4755 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4756 | "wan is %s, status 0x%02x\n", | |
d6fdd1e9 HMH |
4757 | str_supported(tp_features.wan), |
4758 | status); | |
4759 | ||
a73f3091 HMH |
4760 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4761 | if (dbg_wwanemul) { | |
4762 | tp_features.wan = 1; | |
0978e012 | 4763 | pr_info("wwan switch emulation enabled\n"); |
a73f3091 HMH |
4764 | } else |
4765 | #endif | |
3a872080 HMH |
4766 | if (tp_features.wan && |
4767 | !(status & TP_ACPI_WANCARD_HWPRESENT)) { | |
4768 | /* no wan hardware present in system */ | |
4769 | tp_features.wan = 0; | |
bee4cd9b | 4770 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
3a872080 HMH |
4771 | "wan hardware not installed\n"); |
4772 | } | |
4773 | ||
0e74dc26 HMH |
4774 | if (!tp_features.wan) |
4775 | return 1; | |
4776 | ||
0e74dc26 | 4777 | res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, |
19d337df | 4778 | &wan_tprfk_ops, |
0e74dc26 | 4779 | RFKILL_TYPE_WWAN, |
bee4cd9b | 4780 | TPACPI_RFK_WWAN_SW_NAME, |
19d337df JB |
4781 | true); |
4782 | if (res) | |
4783 | return res; | |
4784 | ||
4785 | res = sysfs_create_group(&tpacpi_pdev->dev.kobj, | |
4786 | &wan_attr_group); | |
4787 | ||
0e74dc26 | 4788 | if (res) { |
19d337df | 4789 | tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); |
0e74dc26 | 4790 | return res; |
d6fdd1e9 | 4791 | } |
fe08bc4b | 4792 | |
0e74dc26 | 4793 | return 0; |
42adb53c JF |
4794 | } |
4795 | ||
d3a6ade4 | 4796 | /* procfs -------------------------------------------------------------- */ |
887965e6 | 4797 | static int wan_read(struct seq_file *m) |
42adb53c | 4798 | { |
887965e6 | 4799 | return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); |
42adb53c JF |
4800 | } |
4801 | ||
4802 | static int wan_write(char *buf) | |
4803 | { | |
19d337df | 4804 | return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); |
42adb53c JF |
4805 | } |
4806 | ||
a5763f22 HMH |
4807 | static struct ibm_struct wan_driver_data = { |
4808 | .name = "wan", | |
4809 | .read = wan_read, | |
4810 | .write = wan_write, | |
d3a6ade4 | 4811 | .exit = wan_exit, |
90d9d3c7 | 4812 | .shutdown = wan_shutdown, |
a5763f22 HMH |
4813 | }; |
4814 | ||
0045c0aa HMH |
4815 | /************************************************************************* |
4816 | * UWB subdriver | |
4817 | */ | |
4818 | ||
4819 | enum { | |
4820 | /* ACPI GUWB/SUWB bits */ | |
4821 | TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ | |
4822 | TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ | |
4823 | }; | |
4824 | ||
bee4cd9b HMH |
4825 | #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" |
4826 | ||
19d337df | 4827 | static int uwb_get_status(void) |
0045c0aa HMH |
4828 | { |
4829 | int status; | |
4830 | ||
0045c0aa HMH |
4831 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4832 | if (dbg_uwbemul) | |
4833 | return (tpacpi_uwb_emulstate) ? | |
19d337df | 4834 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4835 | #endif |
4836 | ||
4837 | if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) | |
4838 | return -EIO; | |
4839 | ||
4840 | return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? | |
19d337df | 4841 | TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; |
0045c0aa HMH |
4842 | } |
4843 | ||
19d337df | 4844 | static int uwb_set_status(enum tpacpi_rfkill_state state) |
0045c0aa HMH |
4845 | { |
4846 | int status; | |
4847 | ||
bee4cd9b | 4848 | vdbg_printk(TPACPI_DBG_RFKILL, |
19d337df JB |
4849 | "will attempt to %s UWB\n", |
4850 | (state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); | |
bee4cd9b | 4851 | |
0045c0aa HMH |
4852 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
4853 | if (dbg_uwbemul) { | |
19d337df | 4854 | tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); |
0045c0aa HMH |
4855 | return 0; |
4856 | } | |
4857 | #endif | |
4858 | ||
19d337df JB |
4859 | if (state == TPACPI_RFK_RADIO_ON) |
4860 | status = TP_ACPI_UWB_RADIOSSW; | |
4861 | else | |
4862 | status = 0; | |
4863 | ||
0045c0aa HMH |
4864 | if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) |
4865 | return -EIO; | |
4866 | ||
0045c0aa HMH |
4867 | return 0; |
4868 | } | |
4869 | ||
4870 | /* --------------------------------------------------------------------- */ | |
4871 | ||
19d337df JB |
4872 | static const struct tpacpi_rfk_ops uwb_tprfk_ops = { |
4873 | .get_status = uwb_get_status, | |
4874 | .set_status = uwb_set_status, | |
4875 | }; | |
0045c0aa HMH |
4876 | |
4877 | static void uwb_exit(void) | |
4878 | { | |
19d337df | 4879 | tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); |
0045c0aa HMH |
4880 | } |
4881 | ||
4882 | static int __init uwb_init(struct ibm_init_struct *iibm) | |
4883 | { | |
4884 | int res; | |
4885 | int status = 0; | |
4886 | ||
bee4cd9b HMH |
4887 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4888 | "initializing uwb subdriver\n"); | |
0045c0aa HMH |
4889 | |
4890 | TPACPI_ACPIHANDLE_INIT(hkey); | |
4891 | ||
4892 | tp_features.uwb = hkey_handle && | |
4893 | acpi_evalf(hkey_handle, &status, "GUWB", "qd"); | |
4894 | ||
bee4cd9b HMH |
4895 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, |
4896 | "uwb is %s, status 0x%02x\n", | |
0045c0aa HMH |
4897 | str_supported(tp_features.uwb), |
4898 | status); | |
4899 | ||
4900 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES | |
4901 | if (dbg_uwbemul) { | |
4902 | tp_features.uwb = 1; | |
0978e012 | 4903 | pr_info("uwb switch emulation enabled\n"); |
0045c0aa HMH |
4904 | } else |
4905 | #endif | |
4906 | if (tp_features.uwb && | |
4907 | !(status & TP_ACPI_UWB_HWPRESENT)) { | |
4908 | /* no uwb hardware present in system */ | |
4909 | tp_features.uwb = 0; | |
4910 | dbg_printk(TPACPI_DBG_INIT, | |
4911 | "uwb hardware not installed\n"); | |
4912 | } | |
4913 | ||
4914 | if (!tp_features.uwb) | |
4915 | return 1; | |
4916 | ||
4917 | res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, | |
19d337df | 4918 | &uwb_tprfk_ops, |
0045c0aa | 4919 | RFKILL_TYPE_UWB, |
bee4cd9b | 4920 | TPACPI_RFK_UWB_SW_NAME, |
19d337df | 4921 | false); |
0045c0aa HMH |
4922 | return res; |
4923 | } | |
4924 | ||
4925 | static struct ibm_struct uwb_driver_data = { | |
4926 | .name = "uwb", | |
4927 | .exit = uwb_exit, | |
4928 | .flags.experimental = 1, | |
4929 | }; | |
4930 | ||
56b6aeb0 HMH |
4931 | /************************************************************************* |
4932 | * Video subdriver | |
4933 | */ | |
4934 | ||
d7c1d17d HMH |
4935 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
4936 | ||
f74a27d4 HMH |
4937 | enum video_access_mode { |
4938 | TPACPI_VIDEO_NONE = 0, | |
4939 | TPACPI_VIDEO_570, /* 570 */ | |
4940 | TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ | |
4941 | TPACPI_VIDEO_NEW, /* all others */ | |
4942 | }; | |
4943 | ||
4944 | enum { /* video status flags, based on VIDEO_570 */ | |
4945 | TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ | |
4946 | TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ | |
4947 | TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ | |
4948 | }; | |
4949 | ||
4950 | enum { /* TPACPI_VIDEO_570 constants */ | |
4951 | TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ | |
4952 | TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to | |
4953 | * video_status_flags */ | |
4954 | TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ | |
4955 | TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ | |
4956 | }; | |
4957 | ||
9a8e1738 HMH |
4958 | static enum video_access_mode video_supported; |
4959 | static int video_orig_autosw; | |
78f81cc4 | 4960 | |
f74a27d4 HMH |
4961 | static int video_autosw_get(void); |
4962 | static int video_autosw_set(int enable); | |
4963 | ||
112a6ee0 JP |
4964 | TPACPI_HANDLE(vid, root, |
4965 | "\\_SB.PCI.AGP.VGA", /* 570 */ | |
4966 | "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ | |
4967 | "\\_SB.PCI0.VID0", /* 770e */ | |
4968 | "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ | |
4969 | "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ | |
4970 | "\\_SB.PCI0.AGP.VID", /* all others */ | |
4971 | ); /* R30, R31 */ | |
4972 | ||
e0c7dfe7 | 4973 | TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ |
56b6aeb0 | 4974 | |
a5763f22 | 4975 | static int __init video_init(struct ibm_init_struct *iibm) |
1da177e4 | 4976 | { |
78f81cc4 BD |
4977 | int ivga; |
4978 | ||
fe08bc4b HMH |
4979 | vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); |
4980 | ||
e0c7dfe7 | 4981 | TPACPI_ACPIHANDLE_INIT(vid); |
e28393c0 HMH |
4982 | if (tpacpi_is_ibm()) |
4983 | TPACPI_ACPIHANDLE_INIT(vid2); | |
5fba344c | 4984 | |
78f81cc4 BD |
4985 | if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) |
4986 | /* G41, assume IVGA doesn't change */ | |
4987 | vid_handle = vid2_handle; | |
4988 | ||
4989 | if (!vid_handle) | |
4990 | /* video switching not supported on R30, R31 */ | |
efa27145 | 4991 | video_supported = TPACPI_VIDEO_NONE; |
e28393c0 HMH |
4992 | else if (tpacpi_is_ibm() && |
4993 | acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) | |
78f81cc4 | 4994 | /* 570 */ |
efa27145 | 4995 | video_supported = TPACPI_VIDEO_570; |
e28393c0 HMH |
4996 | else if (tpacpi_is_ibm() && |
4997 | acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) | |
78f81cc4 | 4998 | /* 600e/x, 770e, 770x */ |
efa27145 | 4999 | video_supported = TPACPI_VIDEO_770; |
78f81cc4 BD |
5000 | else |
5001 | /* all others */ | |
efa27145 | 5002 | video_supported = TPACPI_VIDEO_NEW; |
1da177e4 | 5003 | |
fe08bc4b HMH |
5004 | vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", |
5005 | str_supported(video_supported != TPACPI_VIDEO_NONE), | |
5006 | video_supported); | |
5007 | ||
72a979f0 | 5008 | return (video_supported != TPACPI_VIDEO_NONE) ? 0 : 1; |
1da177e4 LT |
5009 | } |
5010 | ||
56b6aeb0 HMH |
5011 | static void video_exit(void) |
5012 | { | |
83f34724 HMH |
5013 | dbg_printk(TPACPI_DBG_EXIT, |
5014 | "restoring original video autoswitch mode\n"); | |
5015 | if (video_autosw_set(video_orig_autosw)) | |
5cac62ac | 5016 | pr_err("error while trying to restore original video autoswitch mode\n"); |
56b6aeb0 HMH |
5017 | } |
5018 | ||
83f34724 | 5019 | static int video_outputsw_get(void) |
1da177e4 LT |
5020 | { |
5021 | int status = 0; | |
5022 | int i; | |
5023 | ||
83f34724 HMH |
5024 | switch (video_supported) { |
5025 | case TPACPI_VIDEO_570: | |
5026 | if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", | |
5027 | TP_ACPI_VIDEO_570_PHSCMD)) | |
5028 | return -EIO; | |
5029 | status = i & TP_ACPI_VIDEO_570_PHSMASK; | |
5030 | break; | |
5031 | case TPACPI_VIDEO_770: | |
5032 | if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
5033 | return -EIO; | |
5034 | if (i) | |
5035 | status |= TP_ACPI_VIDEO_S_LCD; | |
5036 | if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
5037 | return -EIO; | |
5038 | if (i) | |
5039 | status |= TP_ACPI_VIDEO_S_CRT; | |
5040 | break; | |
5041 | case TPACPI_VIDEO_NEW: | |
5042 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || | |
5043 | !acpi_evalf(NULL, &i, "\\VCDC", "d")) | |
5044 | return -EIO; | |
5045 | if (i) | |
5046 | status |= TP_ACPI_VIDEO_S_CRT; | |
5047 | ||
5048 | if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || | |
5049 | !acpi_evalf(NULL, &i, "\\VCDL", "d")) | |
5050 | return -EIO; | |
5051 | if (i) | |
5052 | status |= TP_ACPI_VIDEO_S_LCD; | |
5053 | if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) | |
5054 | return -EIO; | |
5055 | if (i) | |
5056 | status |= TP_ACPI_VIDEO_S_DVI; | |
5057 | break; | |
5058 | default: | |
5059 | return -ENOSYS; | |
78f81cc4 BD |
5060 | } |
5061 | ||
5062 | return status; | |
5063 | } | |
1da177e4 | 5064 | |
83f34724 | 5065 | static int video_outputsw_set(int status) |
78f81cc4 | 5066 | { |
83f34724 HMH |
5067 | int autosw; |
5068 | int res = 0; | |
5069 | ||
5070 | switch (video_supported) { | |
5071 | case TPACPI_VIDEO_570: | |
5072 | res = acpi_evalf(NULL, NULL, | |
5073 | "\\_SB.PHS2", "vdd", | |
5074 | TP_ACPI_VIDEO_570_PHS2CMD, | |
5075 | status | TP_ACPI_VIDEO_570_PHS2SET); | |
5076 | break; | |
5077 | case TPACPI_VIDEO_770: | |
5078 | autosw = video_autosw_get(); | |
5079 | if (autosw < 0) | |
5080 | return autosw; | |
1da177e4 | 5081 | |
83f34724 HMH |
5082 | res = video_autosw_set(1); |
5083 | if (res) | |
5084 | return res; | |
5085 | res = acpi_evalf(vid_handle, NULL, | |
5086 | "ASWT", "vdd", status * 0x100, 0); | |
5087 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 5088 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 HMH |
5089 | return -EIO; |
5090 | } | |
5091 | break; | |
5092 | case TPACPI_VIDEO_NEW: | |
5093 | res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && | |
35ff8b9f | 5094 | acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); |
83f34724 HMH |
5095 | break; |
5096 | default: | |
5097 | return -ENOSYS; | |
5098 | } | |
1da177e4 | 5099 | |
72a979f0 | 5100 | return (res) ? 0 : -EIO; |
1da177e4 LT |
5101 | } |
5102 | ||
83f34724 | 5103 | static int video_autosw_get(void) |
78f81cc4 | 5104 | { |
83f34724 | 5105 | int autosw = 0; |
78f81cc4 | 5106 | |
83f34724 HMH |
5107 | switch (video_supported) { |
5108 | case TPACPI_VIDEO_570: | |
5109 | if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) | |
5110 | return -EIO; | |
5111 | break; | |
5112 | case TPACPI_VIDEO_770: | |
5113 | case TPACPI_VIDEO_NEW: | |
5114 | if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) | |
5115 | return -EIO; | |
5116 | break; | |
5117 | default: | |
5118 | return -ENOSYS; | |
5119 | } | |
78f81cc4 | 5120 | |
83f34724 | 5121 | return autosw & 1; |
78f81cc4 BD |
5122 | } |
5123 | ||
83f34724 | 5124 | static int video_autosw_set(int enable) |
78f81cc4 | 5125 | { |
72a979f0 | 5126 | if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0)) |
83f34724 HMH |
5127 | return -EIO; |
5128 | return 0; | |
78f81cc4 BD |
5129 | } |
5130 | ||
83f34724 | 5131 | static int video_outputsw_cycle(void) |
78f81cc4 | 5132 | { |
83f34724 HMH |
5133 | int autosw = video_autosw_get(); |
5134 | int res; | |
78f81cc4 | 5135 | |
83f34724 HMH |
5136 | if (autosw < 0) |
5137 | return autosw; | |
78f81cc4 | 5138 | |
83f34724 HMH |
5139 | switch (video_supported) { |
5140 | case TPACPI_VIDEO_570: | |
5141 | res = video_autosw_set(1); | |
5142 | if (res) | |
5143 | return res; | |
5144 | res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); | |
5145 | break; | |
5146 | case TPACPI_VIDEO_770: | |
5147 | case TPACPI_VIDEO_NEW: | |
5148 | res = video_autosw_set(1); | |
5149 | if (res) | |
5150 | return res; | |
5151 | res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); | |
5152 | break; | |
5153 | default: | |
5154 | return -ENOSYS; | |
5155 | } | |
5156 | if (!autosw && video_autosw_set(autosw)) { | |
0978e012 | 5157 | pr_err("video auto-switch left enabled due to error\n"); |
83f34724 | 5158 | return -EIO; |
78f81cc4 BD |
5159 | } |
5160 | ||
72a979f0 | 5161 | return (res) ? 0 : -EIO; |
83f34724 HMH |
5162 | } |
5163 | ||
5164 | static int video_expand_toggle(void) | |
5165 | { | |
5166 | switch (video_supported) { | |
5167 | case TPACPI_VIDEO_570: | |
72a979f0 | 5168 | return acpi_evalf(ec_handle, NULL, "_Q17", "v") ? |
83f34724 HMH |
5169 | 0 : -EIO; |
5170 | case TPACPI_VIDEO_770: | |
72a979f0 | 5171 | return acpi_evalf(vid_handle, NULL, "VEXP", "v") ? |
83f34724 HMH |
5172 | 0 : -EIO; |
5173 | case TPACPI_VIDEO_NEW: | |
72a979f0 | 5174 | return acpi_evalf(NULL, NULL, "\\VEXP", "v") ? |
83f34724 HMH |
5175 | 0 : -EIO; |
5176 | default: | |
5177 | return -ENOSYS; | |
5178 | } | |
5179 | /* not reached */ | |
78f81cc4 BD |
5180 | } |
5181 | ||
887965e6 | 5182 | static int video_read(struct seq_file *m) |
56b6aeb0 | 5183 | { |
83f34724 | 5184 | int status, autosw; |
56b6aeb0 | 5185 | |
83f34724 | 5186 | if (video_supported == TPACPI_VIDEO_NONE) { |
887965e6 AD |
5187 | seq_printf(m, "status:\t\tnot supported\n"); |
5188 | return 0; | |
56b6aeb0 HMH |
5189 | } |
5190 | ||
b525c06c HMH |
5191 | /* Even reads can crash X.org, so... */ |
5192 | if (!capable(CAP_SYS_ADMIN)) | |
5193 | return -EPERM; | |
5194 | ||
83f34724 HMH |
5195 | status = video_outputsw_get(); |
5196 | if (status < 0) | |
5197 | return status; | |
5198 | ||
5199 | autosw = video_autosw_get(); | |
5200 | if (autosw < 0) | |
5201 | return autosw; | |
5202 | ||
887965e6 AD |
5203 | seq_printf(m, "status:\t\tsupported\n"); |
5204 | seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); | |
5205 | seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); | |
efa27145 | 5206 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
5207 | seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); |
5208 | seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); | |
5209 | seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); | |
5210 | seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); | |
efa27145 | 5211 | if (video_supported == TPACPI_VIDEO_NEW) |
887965e6 AD |
5212 | seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); |
5213 | seq_printf(m, "commands:\tauto_enable, auto_disable\n"); | |
5214 | seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); | |
56b6aeb0 | 5215 | |
887965e6 | 5216 | return 0; |
56b6aeb0 HMH |
5217 | } |
5218 | ||
78f81cc4 | 5219 | static int video_write(char *buf) |
1da177e4 LT |
5220 | { |
5221 | char *cmd; | |
5222 | int enable, disable, status; | |
83f34724 | 5223 | int res; |
1da177e4 | 5224 | |
83f34724 | 5225 | if (video_supported == TPACPI_VIDEO_NONE) |
78f81cc4 BD |
5226 | return -ENODEV; |
5227 | ||
b525c06c HMH |
5228 | /* Even reads can crash X.org, let alone writes... */ |
5229 | if (!capable(CAP_SYS_ADMIN)) | |
5230 | return -EPERM; | |
5231 | ||
83f34724 HMH |
5232 | enable = 0; |
5233 | disable = 0; | |
1da177e4 LT |
5234 | |
5235 | while ((cmd = next_cmd(&buf))) { | |
5236 | if (strlencmp(cmd, "lcd_enable") == 0) { | |
83f34724 | 5237 | enable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5238 | } else if (strlencmp(cmd, "lcd_disable") == 0) { |
83f34724 | 5239 | disable |= TP_ACPI_VIDEO_S_LCD; |
1da177e4 | 5240 | } else if (strlencmp(cmd, "crt_enable") == 0) { |
83f34724 | 5241 | enable |= TP_ACPI_VIDEO_S_CRT; |
1da177e4 | 5242 | } else if (strlencmp(cmd, "crt_disable") == 0) { |
83f34724 | 5243 | disable |= TP_ACPI_VIDEO_S_CRT; |
efa27145 | 5244 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5245 | strlencmp(cmd, "dvi_enable") == 0) { |
83f34724 | 5246 | enable |= TP_ACPI_VIDEO_S_DVI; |
efa27145 | 5247 | } else if (video_supported == TPACPI_VIDEO_NEW && |
78f81cc4 | 5248 | strlencmp(cmd, "dvi_disable") == 0) { |
83f34724 | 5249 | disable |= TP_ACPI_VIDEO_S_DVI; |
1da177e4 | 5250 | } else if (strlencmp(cmd, "auto_enable") == 0) { |
83f34724 HMH |
5251 | res = video_autosw_set(1); |
5252 | if (res) | |
5253 | return res; | |
1da177e4 | 5254 | } else if (strlencmp(cmd, "auto_disable") == 0) { |
83f34724 HMH |
5255 | res = video_autosw_set(0); |
5256 | if (res) | |
5257 | return res; | |
1da177e4 | 5258 | } else if (strlencmp(cmd, "video_switch") == 0) { |
83f34724 HMH |
5259 | res = video_outputsw_cycle(); |
5260 | if (res) | |
5261 | return res; | |
1da177e4 | 5262 | } else if (strlencmp(cmd, "expand_toggle") == 0) { |
83f34724 HMH |
5263 | res = video_expand_toggle(); |
5264 | if (res) | |
5265 | return res; | |
1da177e4 LT |
5266 | } else |
5267 | return -EINVAL; | |
5268 | } | |
5269 | ||
5270 | if (enable || disable) { | |
83f34724 HMH |
5271 | status = video_outputsw_get(); |
5272 | if (status < 0) | |
5273 | return status; | |
5274 | res = video_outputsw_set((status & ~disable) | enable); | |
5275 | if (res) | |
5276 | return res; | |
1da177e4 LT |
5277 | } |
5278 | ||
5279 | return 0; | |
5280 | } | |
5281 | ||
a5763f22 HMH |
5282 | static struct ibm_struct video_driver_data = { |
5283 | .name = "video", | |
5284 | .read = video_read, | |
5285 | .write = video_write, | |
5286 | .exit = video_exit, | |
5287 | }; | |
5288 | ||
d7c1d17d HMH |
5289 | #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ |
5290 | ||
bb28f3d5 PR |
5291 | /************************************************************************* |
5292 | * Keyboard backlight subdriver | |
5293 | */ | |
5294 | ||
c685e20d HG |
5295 | static enum led_brightness kbdlight_brightness; |
5296 | static DEFINE_MUTEX(kbdlight_mutex); | |
5297 | ||
bb28f3d5 PR |
5298 | static int kbdlight_set_level(int level) |
5299 | { | |
c685e20d HG |
5300 | int ret = 0; |
5301 | ||
bb28f3d5 PR |
5302 | if (!hkey_handle) |
5303 | return -ENXIO; | |
5304 | ||
c685e20d HG |
5305 | mutex_lock(&kbdlight_mutex); |
5306 | ||
bb28f3d5 | 5307 | if (!acpi_evalf(hkey_handle, NULL, "MLCS", "dd", level)) |
c685e20d HG |
5308 | ret = -EIO; |
5309 | else | |
5310 | kbdlight_brightness = level; | |
bb28f3d5 | 5311 | |
c685e20d HG |
5312 | mutex_unlock(&kbdlight_mutex); |
5313 | ||
5314 | return ret; | |
bb28f3d5 PR |
5315 | } |
5316 | ||
5317 | static int kbdlight_get_level(void) | |
5318 | { | |
5319 | int status = 0; | |
5320 | ||
5321 | if (!hkey_handle) | |
5322 | return -ENXIO; | |
5323 | ||
5324 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "dd", 0)) | |
5325 | return -EIO; | |
5326 | ||
5327 | if (status < 0) | |
5328 | return status; | |
5329 | ||
5330 | return status & 0x3; | |
5331 | } | |
5332 | ||
5333 | static bool kbdlight_is_supported(void) | |
5334 | { | |
5335 | int status = 0; | |
5336 | ||
5337 | if (!hkey_handle) | |
5338 | return false; | |
5339 | ||
5340 | if (!acpi_has_method(hkey_handle, "MLCG")) { | |
5341 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG is unavailable\n"); | |
5342 | return false; | |
5343 | } | |
5344 | ||
5345 | if (!acpi_evalf(hkey_handle, &status, "MLCG", "qdd", 0)) { | |
5346 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG failed\n"); | |
5347 | return false; | |
5348 | } | |
5349 | ||
5350 | if (status < 0) { | |
5351 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG err: %d\n", status); | |
5352 | return false; | |
5353 | } | |
5354 | ||
5355 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG returned 0x%x\n", status); | |
5356 | /* | |
5357 | * Guessed test for keyboard backlight: | |
5358 | * | |
5359 | * Machines with backlight keyboard return: | |
5360 | * b010100000010000000XX - ThinkPad X1 Carbon 3rd | |
5361 | * b110100010010000000XX - ThinkPad x230 | |
5362 | * b010100000010000000XX - ThinkPad x240 | |
5363 | * b010100000010000000XX - ThinkPad W541 | |
5364 | * (XX is current backlight level) | |
5365 | * | |
5366 | * Machines without backlight keyboard return: | |
5367 | * b10100001000000000000 - ThinkPad x230 | |
5368 | * b10110001000000000000 - ThinkPad E430 | |
5369 | * b00000000000000000000 - ThinkPad E450 | |
5370 | * | |
5371 | * Candidate BITs for detection test (XOR): | |
5372 | * b01000000001000000000 | |
5373 | * ^ | |
5374 | */ | |
5375 | return status & BIT(9); | |
5376 | } | |
5377 | ||
86ec0c2c | 5378 | static int kbdlight_sysfs_set(struct led_classdev *led_cdev, |
bb28f3d5 PR |
5379 | enum led_brightness brightness) |
5380 | { | |
86ec0c2c | 5381 | return kbdlight_set_level(brightness); |
bb28f3d5 PR |
5382 | } |
5383 | ||
5384 | static enum led_brightness kbdlight_sysfs_get(struct led_classdev *led_cdev) | |
5385 | { | |
5386 | int level; | |
5387 | ||
5388 | level = kbdlight_get_level(); | |
5389 | if (level < 0) | |
5390 | return 0; | |
5391 | ||
5392 | return level; | |
5393 | } | |
5394 | ||
5395 | static struct tpacpi_led_classdev tpacpi_led_kbdlight = { | |
5396 | .led_classdev = { | |
5397 | .name = "tpacpi::kbd_backlight", | |
5398 | .max_brightness = 2, | |
c685e20d | 5399 | .flags = LED_BRIGHT_HW_CHANGED, |
86ec0c2c | 5400 | .brightness_set_blocking = &kbdlight_sysfs_set, |
bb28f3d5 | 5401 | .brightness_get = &kbdlight_sysfs_get, |
bb28f3d5 PR |
5402 | } |
5403 | }; | |
5404 | ||
5405 | static int __init kbdlight_init(struct ibm_init_struct *iibm) | |
5406 | { | |
5407 | int rc; | |
5408 | ||
5409 | vdbg_printk(TPACPI_DBG_INIT, "initializing kbdlight subdriver\n"); | |
5410 | ||
5411 | TPACPI_ACPIHANDLE_INIT(hkey); | |
bb28f3d5 PR |
5412 | |
5413 | if (!kbdlight_is_supported()) { | |
5414 | tp_features.kbdlight = 0; | |
5415 | vdbg_printk(TPACPI_DBG_INIT, "kbdlight is unsupported\n"); | |
5416 | return 1; | |
5417 | } | |
5418 | ||
c685e20d | 5419 | kbdlight_brightness = kbdlight_sysfs_get(NULL); |
bb28f3d5 PR |
5420 | tp_features.kbdlight = 1; |
5421 | ||
5422 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5423 | &tpacpi_led_kbdlight.led_classdev); | |
5424 | if (rc < 0) { | |
5425 | tp_features.kbdlight = 0; | |
5426 | return rc; | |
5427 | } | |
5428 | ||
c685e20d HG |
5429 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
5430 | TP_ACPI_HKEY_KBD_LIGHT_MASK); | |
bb28f3d5 PR |
5431 | return 0; |
5432 | } | |
5433 | ||
5434 | static void kbdlight_exit(void) | |
5435 | { | |
5436 | if (tp_features.kbdlight) | |
5437 | led_classdev_unregister(&tpacpi_led_kbdlight.led_classdev); | |
bb28f3d5 PR |
5438 | } |
5439 | ||
afcedebc MTT |
5440 | static int kbdlight_set_level_and_update(int level) |
5441 | { | |
5442 | int ret; | |
5443 | struct led_classdev *led_cdev; | |
5444 | ||
5445 | ret = kbdlight_set_level(level); | |
5446 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5447 | ||
5448 | if (ret == 0 && !(led_cdev->flags & LED_SUSPENDED)) | |
5449 | led_cdev->brightness = level; | |
5450 | ||
5451 | return ret; | |
5452 | } | |
5453 | ||
bb28f3d5 PR |
5454 | static int kbdlight_read(struct seq_file *m) |
5455 | { | |
5456 | int level; | |
5457 | ||
5458 | if (!tp_features.kbdlight) { | |
5459 | seq_printf(m, "status:\t\tnot supported\n"); | |
5460 | } else { | |
5461 | level = kbdlight_get_level(); | |
5462 | if (level < 0) | |
5463 | seq_printf(m, "status:\t\terror %d\n", level); | |
5464 | else | |
5465 | seq_printf(m, "status:\t\t%d\n", level); | |
5466 | seq_printf(m, "commands:\t0, 1, 2\n"); | |
5467 | } | |
5468 | ||
5469 | return 0; | |
5470 | } | |
5471 | ||
5472 | static int kbdlight_write(char *buf) | |
5473 | { | |
5474 | char *cmd; | |
5475 | int level = -1; | |
5476 | ||
5477 | if (!tp_features.kbdlight) | |
5478 | return -ENODEV; | |
5479 | ||
5480 | while ((cmd = next_cmd(&buf))) { | |
5481 | if (strlencmp(cmd, "0") == 0) | |
5482 | level = 0; | |
5483 | else if (strlencmp(cmd, "1") == 0) | |
5484 | level = 1; | |
5485 | else if (strlencmp(cmd, "2") == 0) | |
5486 | level = 2; | |
5487 | else | |
5488 | return -EINVAL; | |
5489 | } | |
5490 | ||
5491 | if (level == -1) | |
5492 | return -EINVAL; | |
5493 | ||
afcedebc MTT |
5494 | return kbdlight_set_level_and_update(level); |
5495 | } | |
5496 | ||
5497 | static void kbdlight_suspend(void) | |
5498 | { | |
5499 | struct led_classdev *led_cdev; | |
5500 | ||
5501 | if (!tp_features.kbdlight) | |
5502 | return; | |
5503 | ||
5504 | led_cdev = &tpacpi_led_kbdlight.led_classdev; | |
5505 | led_update_brightness(led_cdev); | |
5506 | led_classdev_suspend(led_cdev); | |
5507 | } | |
5508 | ||
5509 | static void kbdlight_resume(void) | |
5510 | { | |
5511 | if (!tp_features.kbdlight) | |
5512 | return; | |
5513 | ||
5514 | led_classdev_resume(&tpacpi_led_kbdlight.led_classdev); | |
bb28f3d5 PR |
5515 | } |
5516 | ||
5517 | static struct ibm_struct kbdlight_driver_data = { | |
5518 | .name = "kbdlight", | |
5519 | .read = kbdlight_read, | |
5520 | .write = kbdlight_write, | |
afcedebc MTT |
5521 | .suspend = kbdlight_suspend, |
5522 | .resume = kbdlight_resume, | |
bb28f3d5 PR |
5523 | .exit = kbdlight_exit, |
5524 | }; | |
5525 | ||
56b6aeb0 HMH |
5526 | /************************************************************************* |
5527 | * Light (thinklight) subdriver | |
5528 | */ | |
1da177e4 | 5529 | |
e0c7dfe7 HMH |
5530 | TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ |
5531 | TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ | |
56b6aeb0 | 5532 | |
4fa6811b HMH |
5533 | static int light_get_status(void) |
5534 | { | |
5535 | int status = 0; | |
5536 | ||
5537 | if (tp_features.light_status) { | |
5538 | if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) | |
5539 | return -EIO; | |
5540 | return (!!status); | |
5541 | } | |
5542 | ||
5543 | return -ENXIO; | |
5544 | } | |
5545 | ||
5546 | static int light_set_status(int status) | |
5547 | { | |
5548 | int rc; | |
5549 | ||
5550 | if (tp_features.light) { | |
5551 | if (cmos_handle) { | |
5552 | rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", | |
72a979f0 | 5553 | (status) ? |
4fa6811b HMH |
5554 | TP_CMOS_THINKLIGHT_ON : |
5555 | TP_CMOS_THINKLIGHT_OFF); | |
5556 | } else { | |
5557 | rc = acpi_evalf(lght_handle, NULL, NULL, "vd", | |
72a979f0 | 5558 | (status) ? 1 : 0); |
4fa6811b | 5559 | } |
72a979f0 | 5560 | return (rc) ? 0 : -EIO; |
4fa6811b HMH |
5561 | } |
5562 | ||
5563 | return -ENXIO; | |
5564 | } | |
5565 | ||
86ec0c2c | 5566 | static int light_sysfs_set(struct led_classdev *led_cdev, |
e306501d HMH |
5567 | enum led_brightness brightness) |
5568 | { | |
86ec0c2c HG |
5569 | return light_set_status((brightness != LED_OFF) ? |
5570 | TPACPI_LED_ON : TPACPI_LED_OFF); | |
e306501d HMH |
5571 | } |
5572 | ||
5573 | static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) | |
5574 | { | |
72a979f0 | 5575 | return (light_get_status() == 1) ? LED_FULL : LED_OFF; |
e306501d HMH |
5576 | } |
5577 | ||
5578 | static struct tpacpi_led_classdev tpacpi_led_thinklight = { | |
5579 | .led_classdev = { | |
5580 | .name = "tpacpi::thinklight", | |
86ec0c2c | 5581 | .brightness_set_blocking = &light_sysfs_set, |
e306501d HMH |
5582 | .brightness_get = &light_sysfs_get, |
5583 | } | |
5584 | }; | |
5585 | ||
a5763f22 | 5586 | static int __init light_init(struct ibm_init_struct *iibm) |
1da177e4 | 5587 | { |
9c0a76e1 | 5588 | int rc; |
e306501d | 5589 | |
fe08bc4b HMH |
5590 | vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); |
5591 | ||
e28393c0 HMH |
5592 | if (tpacpi_is_ibm()) { |
5593 | TPACPI_ACPIHANDLE_INIT(ledb); | |
5594 | TPACPI_ACPIHANDLE_INIT(lght); | |
5595 | } | |
e0c7dfe7 | 5596 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5597 | |
78f81cc4 | 5598 | /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ |
d8fd94d9 | 5599 | tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; |
78f81cc4 | 5600 | |
d8fd94d9 | 5601 | if (tp_features.light) |
78f81cc4 BD |
5602 | /* light status not supported on |
5603 | 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ | |
d8fd94d9 HMH |
5604 | tp_features.light_status = |
5605 | acpi_evalf(ec_handle, NULL, "KBLT", "qv"); | |
1da177e4 | 5606 | |
9c0a76e1 HMH |
5607 | vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", |
5608 | str_supported(tp_features.light), | |
5609 | str_supported(tp_features.light_status)); | |
fe08bc4b | 5610 | |
9c0a76e1 HMH |
5611 | if (!tp_features.light) |
5612 | return 1; | |
5613 | ||
5614 | rc = led_classdev_register(&tpacpi_pdev->dev, | |
5615 | &tpacpi_led_thinklight.led_classdev); | |
e306501d HMH |
5616 | |
5617 | if (rc < 0) { | |
5618 | tp_features.light = 0; | |
5619 | tp_features.light_status = 0; | |
9c0a76e1 HMH |
5620 | } else { |
5621 | rc = 0; | |
e306501d | 5622 | } |
9c0a76e1 | 5623 | |
e306501d HMH |
5624 | return rc; |
5625 | } | |
5626 | ||
5627 | static void light_exit(void) | |
5628 | { | |
5629 | led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); | |
1da177e4 LT |
5630 | } |
5631 | ||
887965e6 | 5632 | static int light_read(struct seq_file *m) |
1da177e4 | 5633 | { |
4fa6811b | 5634 | int status; |
1da177e4 | 5635 | |
d8fd94d9 | 5636 | if (!tp_features.light) { |
887965e6 | 5637 | seq_printf(m, "status:\t\tnot supported\n"); |
d8fd94d9 | 5638 | } else if (!tp_features.light_status) { |
887965e6 AD |
5639 | seq_printf(m, "status:\t\tunknown\n"); |
5640 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5641 | } else { |
4fa6811b HMH |
5642 | status = light_get_status(); |
5643 | if (status < 0) | |
5644 | return status; | |
887965e6 AD |
5645 | seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); |
5646 | seq_printf(m, "commands:\ton, off\n"); | |
78f81cc4 | 5647 | } |
1da177e4 | 5648 | |
887965e6 | 5649 | return 0; |
1da177e4 LT |
5650 | } |
5651 | ||
78f81cc4 | 5652 | static int light_write(char *buf) |
1da177e4 | 5653 | { |
1da177e4 | 5654 | char *cmd; |
4fa6811b | 5655 | int newstatus = 0; |
78f81cc4 | 5656 | |
d8fd94d9 | 5657 | if (!tp_features.light) |
78f81cc4 BD |
5658 | return -ENODEV; |
5659 | ||
1da177e4 LT |
5660 | while ((cmd = next_cmd(&buf))) { |
5661 | if (strlencmp(cmd, "on") == 0) { | |
4fa6811b | 5662 | newstatus = 1; |
1da177e4 | 5663 | } else if (strlencmp(cmd, "off") == 0) { |
4fa6811b | 5664 | newstatus = 0; |
1da177e4 LT |
5665 | } else |
5666 | return -EINVAL; | |
1da177e4 LT |
5667 | } |
5668 | ||
4fa6811b | 5669 | return light_set_status(newstatus); |
1da177e4 LT |
5670 | } |
5671 | ||
a5763f22 HMH |
5672 | static struct ibm_struct light_driver_data = { |
5673 | .name = "light", | |
5674 | .read = light_read, | |
5675 | .write = light_write, | |
e306501d | 5676 | .exit = light_exit, |
a5763f22 HMH |
5677 | }; |
5678 | ||
56b6aeb0 HMH |
5679 | /************************************************************************* |
5680 | * CMOS subdriver | |
5681 | */ | |
5682 | ||
b616004c HMH |
5683 | /* sysfs cmos_command -------------------------------------------------- */ |
5684 | static ssize_t cmos_command_store(struct device *dev, | |
5685 | struct device_attribute *attr, | |
5686 | const char *buf, size_t count) | |
5687 | { | |
5688 | unsigned long cmos_cmd; | |
5689 | int res; | |
5690 | ||
5691 | if (parse_strtoul(buf, 21, &cmos_cmd)) | |
5692 | return -EINVAL; | |
5693 | ||
5694 | res = issue_thinkpad_cmos_command(cmos_cmd); | |
72a979f0 | 5695 | return (res) ? res : count; |
b616004c HMH |
5696 | } |
5697 | ||
b4dd04ac | 5698 | static DEVICE_ATTR_WO(cmos_command); |
b616004c HMH |
5699 | |
5700 | /* --------------------------------------------------------------------- */ | |
5701 | ||
a5763f22 | 5702 | static int __init cmos_init(struct ibm_init_struct *iibm) |
5fba344c | 5703 | { |
b616004c HMH |
5704 | int res; |
5705 | ||
fe08bc4b HMH |
5706 | vdbg_printk(TPACPI_DBG_INIT, |
5707 | "initializing cmos commands subdriver\n"); | |
5708 | ||
e0c7dfe7 | 5709 | TPACPI_ACPIHANDLE_INIT(cmos); |
5fba344c | 5710 | |
fe08bc4b HMH |
5711 | vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", |
5712 | str_supported(cmos_handle != NULL)); | |
b616004c HMH |
5713 | |
5714 | res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5715 | if (res) | |
5716 | return res; | |
5717 | ||
72a979f0 | 5718 | return (cmos_handle) ? 0 : 1; |
5fba344c HMH |
5719 | } |
5720 | ||
b616004c HMH |
5721 | static void cmos_exit(void) |
5722 | { | |
5723 | device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); | |
5724 | } | |
5725 | ||
887965e6 | 5726 | static int cmos_read(struct seq_file *m) |
1da177e4 | 5727 | { |
78f81cc4 BD |
5728 | /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, |
5729 | R30, R31, T20-22, X20-21 */ | |
1da177e4 | 5730 | if (!cmos_handle) |
887965e6 | 5731 | seq_printf(m, "status:\t\tnot supported\n"); |
1da177e4 | 5732 | else { |
887965e6 AD |
5733 | seq_printf(m, "status:\t\tsupported\n"); |
5734 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); | |
1da177e4 LT |
5735 | } |
5736 | ||
887965e6 | 5737 | return 0; |
1da177e4 LT |
5738 | } |
5739 | ||
78f81cc4 | 5740 | static int cmos_write(char *buf) |
1da177e4 LT |
5741 | { |
5742 | char *cmd; | |
c9bea99c | 5743 | int cmos_cmd, res; |
1da177e4 LT |
5744 | |
5745 | while ((cmd = next_cmd(&buf))) { | |
78f81cc4 BD |
5746 | if (sscanf(cmd, "%u", &cmos_cmd) == 1 && |
5747 | cmos_cmd >= 0 && cmos_cmd <= 21) { | |
1da177e4 LT |
5748 | /* cmos_cmd set */ |
5749 | } else | |
5750 | return -EINVAL; | |
5751 | ||
c9bea99c HMH |
5752 | res = issue_thinkpad_cmos_command(cmos_cmd); |
5753 | if (res) | |
5754 | return res; | |
1da177e4 LT |
5755 | } |
5756 | ||
5757 | return 0; | |
78f81cc4 BD |
5758 | } |
5759 | ||
a5763f22 HMH |
5760 | static struct ibm_struct cmos_driver_data = { |
5761 | .name = "cmos", | |
5762 | .read = cmos_read, | |
5763 | .write = cmos_write, | |
b616004c | 5764 | .exit = cmos_exit, |
a5763f22 | 5765 | }; |
56b6aeb0 HMH |
5766 | |
5767 | /************************************************************************* | |
5768 | * LED subdriver | |
5769 | */ | |
5770 | ||
f74a27d4 HMH |
5771 | enum led_access_mode { |
5772 | TPACPI_LED_NONE = 0, | |
5773 | TPACPI_LED_570, /* 570 */ | |
5774 | TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
5775 | TPACPI_LED_NEW, /* all others */ | |
5776 | }; | |
5777 | ||
5778 | enum { /* For TPACPI_LED_OLD */ | |
5779 | TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ | |
5780 | TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ | |
5781 | TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ | |
5782 | }; | |
5783 | ||
9a8e1738 | 5784 | static enum led_access_mode led_supported; |
78f81cc4 | 5785 | |
2cbb5c8f | 5786 | static acpi_handle led_handle; |
56b6aeb0 | 5787 | |
f21179a4 | 5788 | #define TPACPI_LED_NUMLEDS 16 |
af116101 HMH |
5789 | static struct tpacpi_led_classdev *tpacpi_leds; |
5790 | static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; | |
e3aa51fe | 5791 | static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { |
af116101 HMH |
5792 | /* there's a limit of 19 chars + NULL before 2.6.26 */ |
5793 | "tpacpi::power", | |
5794 | "tpacpi:orange:batt", | |
5795 | "tpacpi:green:batt", | |
5796 | "tpacpi::dock_active", | |
5797 | "tpacpi::bay_active", | |
5798 | "tpacpi::dock_batt", | |
5799 | "tpacpi::unknown_led", | |
5800 | "tpacpi::standby", | |
f21179a4 HMH |
5801 | "tpacpi::dock_status1", |
5802 | "tpacpi::dock_status2", | |
5803 | "tpacpi::unknown_led2", | |
5804 | "tpacpi::unknown_led3", | |
5805 | "tpacpi::thinkvantage", | |
af116101 | 5806 | }; |
f21179a4 | 5807 | #define TPACPI_SAFE_LEDS 0x1081U |
a4d5effc HMH |
5808 | |
5809 | static inline bool tpacpi_is_led_restricted(const unsigned int led) | |
5810 | { | |
5811 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS | |
5812 | return false; | |
5813 | #else | |
f21179a4 | 5814 | return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; |
a4d5effc HMH |
5815 | #endif |
5816 | } | |
af116101 | 5817 | |
24e45bbe | 5818 | static int led_get_status(const unsigned int led) |
4fa6811b HMH |
5819 | { |
5820 | int status; | |
af116101 | 5821 | enum led_status_t led_s; |
4fa6811b HMH |
5822 | |
5823 | switch (led_supported) { | |
5824 | case TPACPI_LED_570: | |
5825 | if (!acpi_evalf(ec_handle, | |
5826 | &status, "GLED", "dd", 1 << led)) | |
5827 | return -EIO; | |
72a979f0 | 5828 | led_s = (status == 0) ? |
4fa6811b | 5829 | TPACPI_LED_OFF : |
72a979f0 | 5830 | ((status == 1) ? |
4fa6811b HMH |
5831 | TPACPI_LED_ON : |
5832 | TPACPI_LED_BLINK); | |
af116101 HMH |
5833 | tpacpi_led_state_cache[led] = led_s; |
5834 | return led_s; | |
4fa6811b HMH |
5835 | default: |
5836 | return -ENXIO; | |
5837 | } | |
5838 | ||
5839 | /* not reached */ | |
5840 | } | |
5841 | ||
24e45bbe HMH |
5842 | static int led_set_status(const unsigned int led, |
5843 | const enum led_status_t ledstatus) | |
4fa6811b HMH |
5844 | { |
5845 | /* off, on, blink. Index is led_status_t */ | |
24e45bbe HMH |
5846 | static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; |
5847 | static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; | |
4fa6811b HMH |
5848 | |
5849 | int rc = 0; | |
5850 | ||
5851 | switch (led_supported) { | |
5852 | case TPACPI_LED_570: | |
24e45bbe | 5853 | /* 570 */ |
a4d5effc | 5854 | if (unlikely(led > 7)) |
24e45bbe | 5855 | return -EINVAL; |
a4d5effc HMH |
5856 | if (unlikely(tpacpi_is_led_restricted(led))) |
5857 | return -EPERM; | |
24e45bbe HMH |
5858 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5859 | (1 << led), led_sled_arg1[ledstatus])) | |
aac3311c | 5860 | return -EIO; |
24e45bbe | 5861 | break; |
4fa6811b | 5862 | case TPACPI_LED_OLD: |
24e45bbe | 5863 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ |
a4d5effc | 5864 | if (unlikely(led > 7)) |
24e45bbe | 5865 | return -EINVAL; |
a4d5effc HMH |
5866 | if (unlikely(tpacpi_is_led_restricted(led))) |
5867 | return -EPERM; | |
24e45bbe HMH |
5868 | rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); |
5869 | if (rc >= 0) | |
5870 | rc = ec_write(TPACPI_LED_EC_HLBL, | |
5871 | (ledstatus == TPACPI_LED_BLINK) << led); | |
5872 | if (rc >= 0) | |
5873 | rc = ec_write(TPACPI_LED_EC_HLCL, | |
5874 | (ledstatus != TPACPI_LED_OFF) << led); | |
5875 | break; | |
4fa6811b | 5876 | case TPACPI_LED_NEW: |
24e45bbe | 5877 | /* all others */ |
a4d5effc HMH |
5878 | if (unlikely(led >= TPACPI_LED_NUMLEDS)) |
5879 | return -EINVAL; | |
5880 | if (unlikely(tpacpi_is_led_restricted(led))) | |
5881 | return -EPERM; | |
24e45bbe HMH |
5882 | if (!acpi_evalf(led_handle, NULL, NULL, "vdd", |
5883 | led, led_led_arg1[ledstatus])) | |
aac3311c | 5884 | return -EIO; |
24e45bbe | 5885 | break; |
4fa6811b | 5886 | default: |
aac3311c | 5887 | return -ENXIO; |
4fa6811b HMH |
5888 | } |
5889 | ||
af116101 HMH |
5890 | if (!rc) |
5891 | tpacpi_led_state_cache[led] = ledstatus; | |
5892 | ||
5893 | return rc; | |
5894 | } | |
5895 | ||
86ec0c2c | 5896 | static int led_sysfs_set(struct led_classdev *led_cdev, |
af116101 HMH |
5897 | enum led_brightness brightness) |
5898 | { | |
5899 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5900 | struct tpacpi_led_classdev, led_classdev); | |
86ec0c2c | 5901 | enum led_status_t new_state; |
af116101 | 5902 | |
75bd3bf2 | 5903 | if (brightness == LED_OFF) |
86ec0c2c | 5904 | new_state = TPACPI_LED_OFF; |
75bd3bf2 | 5905 | else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) |
86ec0c2c | 5906 | new_state = TPACPI_LED_ON; |
75bd3bf2 | 5907 | else |
86ec0c2c | 5908 | new_state = TPACPI_LED_BLINK; |
75bd3bf2 | 5909 | |
86ec0c2c | 5910 | return led_set_status(data->led, new_state); |
af116101 HMH |
5911 | } |
5912 | ||
5913 | static int led_sysfs_blink_set(struct led_classdev *led_cdev, | |
5914 | unsigned long *delay_on, unsigned long *delay_off) | |
5915 | { | |
5916 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5917 | struct tpacpi_led_classdev, led_classdev); | |
5918 | ||
5919 | /* Can we choose the flash rate? */ | |
5920 | if (*delay_on == 0 && *delay_off == 0) { | |
5921 | /* yes. set them to the hardware blink rate (1 Hz) */ | |
5922 | *delay_on = 500; /* ms */ | |
5923 | *delay_off = 500; /* ms */ | |
5924 | } else if ((*delay_on != 500) || (*delay_off != 500)) | |
5925 | return -EINVAL; | |
5926 | ||
86ec0c2c | 5927 | return led_set_status(data->led, TPACPI_LED_BLINK); |
af116101 HMH |
5928 | } |
5929 | ||
5930 | static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) | |
5931 | { | |
5932 | int rc; | |
5933 | ||
5934 | struct tpacpi_led_classdev *data = container_of(led_cdev, | |
5935 | struct tpacpi_led_classdev, led_classdev); | |
5936 | ||
5937 | rc = led_get_status(data->led); | |
5938 | ||
5939 | if (rc == TPACPI_LED_OFF || rc < 0) | |
5940 | rc = LED_OFF; /* no error handling in led class :( */ | |
5941 | else | |
5942 | rc = LED_FULL; | |
5943 | ||
4fa6811b HMH |
5944 | return rc; |
5945 | } | |
5946 | ||
af116101 HMH |
5947 | static void led_exit(void) |
5948 | { | |
5949 | unsigned int i; | |
5950 | ||
5951 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
5952 | if (tpacpi_leds[i].led_classdev.name) | |
5953 | led_classdev_unregister(&tpacpi_leds[i].led_classdev); | |
5954 | } | |
5955 | ||
5956 | kfree(tpacpi_leds); | |
af116101 HMH |
5957 | } |
5958 | ||
a4d5effc HMH |
5959 | static int __init tpacpi_init_led(unsigned int led) |
5960 | { | |
5961 | int rc; | |
5962 | ||
5963 | tpacpi_leds[led].led = led; | |
5964 | ||
f21179a4 HMH |
5965 | /* LEDs with no name don't get registered */ |
5966 | if (!tpacpi_led_names[led]) | |
5967 | return 0; | |
5968 | ||
86ec0c2c | 5969 | tpacpi_leds[led].led_classdev.brightness_set_blocking = &led_sysfs_set; |
a4d5effc HMH |
5970 | tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; |
5971 | if (led_supported == TPACPI_LED_570) | |
5972 | tpacpi_leds[led].led_classdev.brightness_get = | |
5973 | &led_sysfs_get; | |
5974 | ||
5975 | tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; | |
5976 | ||
a4d5effc HMH |
5977 | rc = led_classdev_register(&tpacpi_pdev->dev, |
5978 | &tpacpi_leds[led].led_classdev); | |
5979 | if (rc < 0) | |
5980 | tpacpi_leds[led].led_classdev.name = NULL; | |
5981 | ||
5982 | return rc; | |
5983 | } | |
5984 | ||
f21179a4 HMH |
5985 | static const struct tpacpi_quirk led_useful_qtable[] __initconst = { |
5986 | TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ | |
5987 | TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ | |
5988 | TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ | |
5989 | ||
5990 | TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ | |
5991 | TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ | |
5992 | TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ | |
5993 | TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ | |
5994 | TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ | |
5995 | TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ | |
5996 | TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ | |
5997 | TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ | |
5998 | ||
5999 | TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ | |
6000 | TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ | |
6001 | TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ | |
6002 | TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ | |
6003 | TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ | |
6004 | ||
6005 | TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ | |
6006 | TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ | |
6007 | TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ | |
6008 | TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ | |
6009 | ||
6010 | /* (1) - may have excess leds enabled on MSB */ | |
6011 | ||
6012 | /* Defaults (order matters, keep last, don't reorder!) */ | |
6013 | { /* Lenovo */ | |
6014 | .vendor = PCI_VENDOR_ID_LENOVO, | |
6015 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
6016 | .quirks = 0x1fffU, | |
6017 | }, | |
6018 | { /* IBM ThinkPads with no EC version string */ | |
6019 | .vendor = PCI_VENDOR_ID_IBM, | |
6020 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, | |
6021 | .quirks = 0x00ffU, | |
6022 | }, | |
6023 | { /* IBM ThinkPads with EC version string */ | |
6024 | .vendor = PCI_VENDOR_ID_IBM, | |
6025 | .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, | |
6026 | .quirks = 0x00bfU, | |
6027 | }, | |
6028 | }; | |
6029 | ||
2cbb5c8f HMH |
6030 | static enum led_access_mode __init led_init_detect_mode(void) |
6031 | { | |
6032 | acpi_status status; | |
6033 | ||
6034 | if (tpacpi_is_ibm()) { | |
6035 | /* 570 */ | |
6036 | status = acpi_get_handle(ec_handle, "SLED", &led_handle); | |
6037 | if (ACPI_SUCCESS(status)) | |
6038 | return TPACPI_LED_570; | |
6039 | ||
6040 | /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ | |
6041 | status = acpi_get_handle(ec_handle, "SYSL", &led_handle); | |
6042 | if (ACPI_SUCCESS(status)) | |
6043 | return TPACPI_LED_OLD; | |
6044 | } | |
6045 | ||
6046 | /* most others */ | |
6047 | status = acpi_get_handle(ec_handle, "LED", &led_handle); | |
6048 | if (ACPI_SUCCESS(status)) | |
6049 | return TPACPI_LED_NEW; | |
6050 | ||
6051 | /* R30, R31, and unknown firmwares */ | |
6052 | led_handle = NULL; | |
6053 | return TPACPI_LED_NONE; | |
6054 | } | |
6055 | ||
a5763f22 | 6056 | static int __init led_init(struct ibm_init_struct *iibm) |
78f81cc4 | 6057 | { |
af116101 HMH |
6058 | unsigned int i; |
6059 | int rc; | |
f21179a4 | 6060 | unsigned long useful_leds; |
af116101 | 6061 | |
fe08bc4b HMH |
6062 | vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); |
6063 | ||
2cbb5c8f | 6064 | led_supported = led_init_detect_mode(); |
78f81cc4 | 6065 | |
fcb44e12 AL |
6066 | if (led_supported != TPACPI_LED_NONE) { |
6067 | useful_leds = tpacpi_check_quirks(led_useful_qtable, | |
6068 | ARRAY_SIZE(led_useful_qtable)); | |
6069 | ||
6070 | if (!useful_leds) { | |
6071 | led_handle = NULL; | |
6072 | led_supported = TPACPI_LED_NONE; | |
6073 | } | |
6074 | } | |
6075 | ||
fe08bc4b HMH |
6076 | vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", |
6077 | str_supported(led_supported), led_supported); | |
6078 | ||
f21179a4 HMH |
6079 | if (led_supported == TPACPI_LED_NONE) |
6080 | return 1; | |
6081 | ||
6396bb22 | 6082 | tpacpi_leds = kcalloc(TPACPI_LED_NUMLEDS, sizeof(*tpacpi_leds), |
af116101 HMH |
6083 | GFP_KERNEL); |
6084 | if (!tpacpi_leds) { | |
0978e012 | 6085 | pr_err("Out of memory for LED data\n"); |
af116101 HMH |
6086 | return -ENOMEM; |
6087 | } | |
6088 | ||
6089 | for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { | |
edf2d778 AL |
6090 | tpacpi_leds[i].led = -1; |
6091 | ||
f21179a4 HMH |
6092 | if (!tpacpi_is_led_restricted(i) && |
6093 | test_bit(i, &useful_leds)) { | |
a4d5effc HMH |
6094 | rc = tpacpi_init_led(i); |
6095 | if (rc < 0) { | |
6096 | led_exit(); | |
6097 | return rc; | |
6098 | } | |
af116101 HMH |
6099 | } |
6100 | } | |
6101 | ||
a4d5effc | 6102 | #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS |
5cac62ac | 6103 | pr_notice("warning: userspace override of important firmware LEDs is enabled\n"); |
a4d5effc | 6104 | #endif |
f21179a4 | 6105 | return 0; |
78f81cc4 BD |
6106 | } |
6107 | ||
4fa6811b HMH |
6108 | #define str_led_status(s) \ |
6109 | ((s) == TPACPI_LED_OFF ? "off" : \ | |
6110 | ((s) == TPACPI_LED_ON ? "on" : "blinking")) | |
78f81cc4 | 6111 | |
887965e6 | 6112 | static int led_read(struct seq_file *m) |
1da177e4 | 6113 | { |
78f81cc4 | 6114 | if (!led_supported) { |
887965e6 AD |
6115 | seq_printf(m, "status:\t\tnot supported\n"); |
6116 | return 0; | |
78f81cc4 | 6117 | } |
887965e6 | 6118 | seq_printf(m, "status:\t\tsupported\n"); |
78f81cc4 | 6119 | |
efa27145 | 6120 | if (led_supported == TPACPI_LED_570) { |
78f81cc4 BD |
6121 | /* 570 */ |
6122 | int i, status; | |
6123 | for (i = 0; i < 8; i++) { | |
4fa6811b HMH |
6124 | status = led_get_status(i); |
6125 | if (status < 0) | |
78f81cc4 | 6126 | return -EIO; |
887965e6 | 6127 | seq_printf(m, "%d:\t\t%s\n", |
4fa6811b | 6128 | i, str_led_status(status)); |
78f81cc4 BD |
6129 | } |
6130 | } | |
6131 | ||
5cac62ac | 6132 | seq_printf(m, "commands:\t<led> on, <led> off, <led> blink (<led> is 0-15)\n"); |
1da177e4 | 6133 | |
887965e6 | 6134 | return 0; |
1da177e4 LT |
6135 | } |
6136 | ||
78f81cc4 | 6137 | static int led_write(char *buf) |
1da177e4 LT |
6138 | { |
6139 | char *cmd; | |
4fa6811b HMH |
6140 | int led, rc; |
6141 | enum led_status_t s; | |
78f81cc4 BD |
6142 | |
6143 | if (!led_supported) | |
6144 | return -ENODEV; | |
1da177e4 LT |
6145 | |
6146 | while ((cmd = next_cmd(&buf))) { | |
edf2d778 | 6147 | if (sscanf(cmd, "%d", &led) != 1) |
1da177e4 LT |
6148 | return -EINVAL; |
6149 | ||
edf2d778 AL |
6150 | if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1) || |
6151 | tpacpi_leds[led].led < 0) | |
6152 | return -ENODEV; | |
6153 | ||
78f81cc4 | 6154 | if (strstr(cmd, "off")) { |
4fa6811b | 6155 | s = TPACPI_LED_OFF; |
1da177e4 | 6156 | } else if (strstr(cmd, "on")) { |
4fa6811b | 6157 | s = TPACPI_LED_ON; |
78f81cc4 | 6158 | } else if (strstr(cmd, "blink")) { |
4fa6811b | 6159 | s = TPACPI_LED_BLINK; |
78f81cc4 | 6160 | } else { |
4fa6811b | 6161 | return -EINVAL; |
78f81cc4 | 6162 | } |
4fa6811b HMH |
6163 | |
6164 | rc = led_set_status(led, s); | |
6165 | if (rc < 0) | |
6166 | return rc; | |
78f81cc4 BD |
6167 | } |
6168 | ||
6169 | return 0; | |
6170 | } | |
6171 | ||
a5763f22 HMH |
6172 | static struct ibm_struct led_driver_data = { |
6173 | .name = "led", | |
6174 | .read = led_read, | |
6175 | .write = led_write, | |
af116101 | 6176 | .exit = led_exit, |
a5763f22 HMH |
6177 | }; |
6178 | ||
56b6aeb0 HMH |
6179 | /************************************************************************* |
6180 | * Beep subdriver | |
6181 | */ | |
6182 | ||
e0c7dfe7 | 6183 | TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ |
56b6aeb0 | 6184 | |
60201732 HMH |
6185 | #define TPACPI_BEEP_Q1 0x0001 |
6186 | ||
6187 | static const struct tpacpi_quirk beep_quirk_table[] __initconst = { | |
6188 | TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ | |
6189 | TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ | |
6190 | }; | |
6191 | ||
a5763f22 | 6192 | static int __init beep_init(struct ibm_init_struct *iibm) |
5fba344c | 6193 | { |
60201732 HMH |
6194 | unsigned long quirks; |
6195 | ||
fe08bc4b HMH |
6196 | vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); |
6197 | ||
e0c7dfe7 | 6198 | TPACPI_ACPIHANDLE_INIT(beep); |
5fba344c | 6199 | |
fe08bc4b HMH |
6200 | vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", |
6201 | str_supported(beep_handle != NULL)); | |
6202 | ||
60201732 HMH |
6203 | quirks = tpacpi_check_quirks(beep_quirk_table, |
6204 | ARRAY_SIZE(beep_quirk_table)); | |
6205 | ||
6206 | tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); | |
6207 | ||
72a979f0 | 6208 | return (beep_handle) ? 0 : 1; |
5fba344c HMH |
6209 | } |
6210 | ||
887965e6 | 6211 | static int beep_read(struct seq_file *m) |
78f81cc4 | 6212 | { |
78f81cc4 | 6213 | if (!beep_handle) |
887965e6 | 6214 | seq_printf(m, "status:\t\tnot supported\n"); |
78f81cc4 | 6215 | else { |
887965e6 AD |
6216 | seq_printf(m, "status:\t\tsupported\n"); |
6217 | seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); | |
78f81cc4 BD |
6218 | } |
6219 | ||
887965e6 | 6220 | return 0; |
78f81cc4 BD |
6221 | } |
6222 | ||
6223 | static int beep_write(char *buf) | |
6224 | { | |
6225 | char *cmd; | |
6226 | int beep_cmd; | |
6227 | ||
6228 | if (!beep_handle) | |
6229 | return -ENODEV; | |
6230 | ||
6231 | while ((cmd = next_cmd(&buf))) { | |
6232 | if (sscanf(cmd, "%u", &beep_cmd) == 1 && | |
6233 | beep_cmd >= 0 && beep_cmd <= 17) { | |
6234 | /* beep_cmd set */ | |
6235 | } else | |
6236 | return -EINVAL; | |
60201732 HMH |
6237 | if (tp_features.beep_needs_two_args) { |
6238 | if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", | |
6239 | beep_cmd, 0)) | |
6240 | return -EIO; | |
6241 | } else { | |
6242 | if (!acpi_evalf(beep_handle, NULL, NULL, "vd", | |
6243 | beep_cmd)) | |
6244 | return -EIO; | |
6245 | } | |
78f81cc4 BD |
6246 | } |
6247 | ||
6248 | return 0; | |
6249 | } | |
6250 | ||
a5763f22 HMH |
6251 | static struct ibm_struct beep_driver_data = { |
6252 | .name = "beep", | |
6253 | .read = beep_read, | |
6254 | .write = beep_write, | |
6255 | }; | |
6256 | ||
56b6aeb0 HMH |
6257 | /************************************************************************* |
6258 | * Thermal subdriver | |
6259 | */ | |
78f81cc4 | 6260 | |
f74a27d4 HMH |
6261 | enum thermal_access_mode { |
6262 | TPACPI_THERMAL_NONE = 0, /* No thermal support */ | |
6263 | TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ | |
6264 | TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ | |
6265 | TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ | |
6266 | TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ | |
6267 | }; | |
6268 | ||
6269 | enum { /* TPACPI_THERMAL_TPEC_* */ | |
6270 | TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ | |
6271 | TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ | |
6272 | TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ | |
9ebd9e83 HMH |
6273 | |
6274 | TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ | |
f74a27d4 HMH |
6275 | }; |
6276 | ||
9ebd9e83 | 6277 | |
f74a27d4 HMH |
6278 | #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ |
6279 | struct ibm_thermal_sensors_struct { | |
6280 | s32 temp[TPACPI_MAX_THERMAL_SENSORS]; | |
6281 | }; | |
6282 | ||
a26f878a | 6283 | static enum thermal_access_mode thermal_read_mode; |
78f81cc4 | 6284 | |
b21a15f6 HMH |
6285 | /* idx is zero-based */ |
6286 | static int thermal_get_sensor(int idx, s32 *value) | |
6287 | { | |
6288 | int t; | |
6289 | s8 tmp; | |
6290 | char tmpi[5]; | |
6291 | ||
6292 | t = TP_EC_THERMAL_TMP0; | |
6293 | ||
6294 | switch (thermal_read_mode) { | |
6295 | #if TPACPI_MAX_THERMAL_SENSORS >= 16 | |
6296 | case TPACPI_THERMAL_TPEC_16: | |
6297 | if (idx >= 8 && idx <= 15) { | |
6298 | t = TP_EC_THERMAL_TMP8; | |
6299 | idx -= 8; | |
6300 | } | |
b21a15f6 | 6301 | #endif |
c77c3577 | 6302 | /* fallthrough */ |
b21a15f6 HMH |
6303 | case TPACPI_THERMAL_TPEC_8: |
6304 | if (idx <= 7) { | |
6305 | if (!acpi_ec_read(t + idx, &tmp)) | |
6306 | return -EIO; | |
6307 | *value = tmp * 1000; | |
6308 | return 0; | |
6309 | } | |
6310 | break; | |
6311 | ||
6312 | case TPACPI_THERMAL_ACPI_UPDT: | |
6313 | if (idx <= 7) { | |
6314 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6315 | if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) | |
6316 | return -EIO; | |
6317 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6318 | return -EIO; | |
6319 | *value = (t - 2732) * 100; | |
6320 | return 0; | |
6321 | } | |
6322 | break; | |
6323 | ||
6324 | case TPACPI_THERMAL_ACPI_TMP07: | |
6325 | if (idx <= 7) { | |
6326 | snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); | |
6327 | if (!acpi_evalf(ec_handle, &t, tmpi, "d")) | |
6328 | return -EIO; | |
6329 | if (t > 127 || t < -127) | |
6330 | t = TP_EC_THERMAL_TMP_NA; | |
6331 | *value = t * 1000; | |
6332 | return 0; | |
6333 | } | |
6334 | break; | |
6335 | ||
6336 | case TPACPI_THERMAL_NONE: | |
6337 | default: | |
6338 | return -ENOSYS; | |
6339 | } | |
6340 | ||
6341 | return -EINVAL; | |
6342 | } | |
6343 | ||
6344 | static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) | |
6345 | { | |
6346 | int res, i; | |
6347 | int n; | |
6348 | ||
6349 | n = 8; | |
6350 | i = 0; | |
6351 | ||
6352 | if (!s) | |
6353 | return -EINVAL; | |
6354 | ||
6355 | if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) | |
6356 | n = 16; | |
6357 | ||
35ff8b9f | 6358 | for (i = 0 ; i < n; i++) { |
b21a15f6 HMH |
6359 | res = thermal_get_sensor(i, &s->temp[i]); |
6360 | if (res) | |
6361 | return res; | |
6362 | } | |
6363 | ||
6364 | return n; | |
6365 | } | |
f74a27d4 | 6366 | |
9ebd9e83 HMH |
6367 | static void thermal_dump_all_sensors(void) |
6368 | { | |
6369 | int n, i; | |
6370 | struct ibm_thermal_sensors_struct t; | |
6371 | ||
6372 | n = thermal_get_sensors(&t); | |
6373 | if (n <= 0) | |
6374 | return; | |
6375 | ||
0978e012 | 6376 | pr_notice("temperatures (Celsius):"); |
9ebd9e83 HMH |
6377 | |
6378 | for (i = 0; i < n; i++) { | |
6379 | if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) | |
0978e012 | 6380 | pr_cont(" %d", (int)(t.temp[i] / 1000)); |
9ebd9e83 | 6381 | else |
0978e012 | 6382 | pr_cont(" N/A"); |
9ebd9e83 HMH |
6383 | } |
6384 | ||
0978e012 | 6385 | pr_cont("\n"); |
9ebd9e83 HMH |
6386 | } |
6387 | ||
2c37aa4e HMH |
6388 | /* sysfs temp##_input -------------------------------------------------- */ |
6389 | ||
6390 | static ssize_t thermal_temp_input_show(struct device *dev, | |
6391 | struct device_attribute *attr, | |
6392 | char *buf) | |
6393 | { | |
6394 | struct sensor_device_attribute *sensor_attr = | |
6395 | to_sensor_dev_attr(attr); | |
6396 | int idx = sensor_attr->index; | |
6397 | s32 value; | |
6398 | int res; | |
6399 | ||
6400 | res = thermal_get_sensor(idx, &value); | |
6401 | if (res) | |
6402 | return res; | |
9ebd9e83 | 6403 | if (value == TPACPI_THERMAL_SENSOR_NA) |
2c37aa4e HMH |
6404 | return -ENXIO; |
6405 | ||
6406 | return snprintf(buf, PAGE_SIZE, "%d\n", value); | |
6407 | } | |
6408 | ||
6409 | #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ | |
35ff8b9f HMH |
6410 | SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ |
6411 | thermal_temp_input_show, NULL, _idxB) | |
2c37aa4e HMH |
6412 | |
6413 | static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { | |
6414 | THERMAL_SENSOR_ATTR_TEMP(1, 0), | |
6415 | THERMAL_SENSOR_ATTR_TEMP(2, 1), | |
6416 | THERMAL_SENSOR_ATTR_TEMP(3, 2), | |
6417 | THERMAL_SENSOR_ATTR_TEMP(4, 3), | |
6418 | THERMAL_SENSOR_ATTR_TEMP(5, 4), | |
6419 | THERMAL_SENSOR_ATTR_TEMP(6, 5), | |
6420 | THERMAL_SENSOR_ATTR_TEMP(7, 6), | |
6421 | THERMAL_SENSOR_ATTR_TEMP(8, 7), | |
6422 | THERMAL_SENSOR_ATTR_TEMP(9, 8), | |
6423 | THERMAL_SENSOR_ATTR_TEMP(10, 9), | |
6424 | THERMAL_SENSOR_ATTR_TEMP(11, 10), | |
6425 | THERMAL_SENSOR_ATTR_TEMP(12, 11), | |
6426 | THERMAL_SENSOR_ATTR_TEMP(13, 12), | |
6427 | THERMAL_SENSOR_ATTR_TEMP(14, 13), | |
6428 | THERMAL_SENSOR_ATTR_TEMP(15, 14), | |
6429 | THERMAL_SENSOR_ATTR_TEMP(16, 15), | |
6430 | }; | |
6431 | ||
6432 | #define THERMAL_ATTRS(X) \ | |
6433 | &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr | |
6434 | ||
6435 | static struct attribute *thermal_temp_input_attr[] = { | |
6436 | THERMAL_ATTRS(8), | |
6437 | THERMAL_ATTRS(9), | |
6438 | THERMAL_ATTRS(10), | |
6439 | THERMAL_ATTRS(11), | |
6440 | THERMAL_ATTRS(12), | |
6441 | THERMAL_ATTRS(13), | |
6442 | THERMAL_ATTRS(14), | |
6443 | THERMAL_ATTRS(15), | |
6444 | THERMAL_ATTRS(0), | |
6445 | THERMAL_ATTRS(1), | |
6446 | THERMAL_ATTRS(2), | |
6447 | THERMAL_ATTRS(3), | |
6448 | THERMAL_ATTRS(4), | |
6449 | THERMAL_ATTRS(5), | |
6450 | THERMAL_ATTRS(6), | |
6451 | THERMAL_ATTRS(7), | |
6452 | NULL | |
6453 | }; | |
6454 | ||
6455 | static const struct attribute_group thermal_temp_input16_group = { | |
6456 | .attrs = thermal_temp_input_attr | |
6457 | }; | |
6458 | ||
6459 | static const struct attribute_group thermal_temp_input8_group = { | |
6460 | .attrs = &thermal_temp_input_attr[8] | |
6461 | }; | |
6462 | ||
6463 | #undef THERMAL_SENSOR_ATTR_TEMP | |
6464 | #undef THERMAL_ATTRS | |
6465 | ||
6466 | /* --------------------------------------------------------------------- */ | |
6467 | ||
a5763f22 | 6468 | static int __init thermal_init(struct ibm_init_struct *iibm) |
78f81cc4 | 6469 | { |
60eb0b35 HMH |
6470 | u8 t, ta1, ta2; |
6471 | int i; | |
5fba344c | 6472 | int acpi_tmp7; |
2c37aa4e | 6473 | int res; |
5fba344c | 6474 | |
fe08bc4b HMH |
6475 | vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); |
6476 | ||
5fba344c | 6477 | acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); |
60eb0b35 | 6478 | |
3d6f99ca | 6479 | if (thinkpad_id.ec_model) { |
60eb0b35 HMH |
6480 | /* |
6481 | * Direct EC access mode: sensors at registers | |
6482 | * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for | |
6483 | * non-implemented, thermal sensors return 0x80 when | |
6484 | * not available | |
6485 | */ | |
78f81cc4 | 6486 | |
60eb0b35 HMH |
6487 | ta1 = ta2 = 0; |
6488 | for (i = 0; i < 8; i++) { | |
04cc862c | 6489 | if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { |
60eb0b35 HMH |
6490 | ta1 |= t; |
6491 | } else { | |
6492 | ta1 = 0; | |
6493 | break; | |
6494 | } | |
04cc862c | 6495 | if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { |
60eb0b35 HMH |
6496 | ta2 |= t; |
6497 | } else { | |
6498 | ta1 = 0; | |
6499 | break; | |
6500 | } | |
6501 | } | |
6502 | if (ta1 == 0) { | |
6503 | /* This is sheer paranoia, but we handle it anyway */ | |
6504 | if (acpi_tmp7) { | |
5cac62ac | 6505 | pr_err("ThinkPad ACPI EC access misbehaving, falling back to ACPI TMPx access mode\n"); |
efa27145 | 6506 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
60eb0b35 | 6507 | } else { |
5cac62ac | 6508 | pr_err("ThinkPad ACPI EC access misbehaving, disabling thermal sensors access\n"); |
efa27145 | 6509 | thermal_read_mode = TPACPI_THERMAL_NONE; |
60eb0b35 HMH |
6510 | } |
6511 | } else { | |
6512 | thermal_read_mode = | |
6513 | (ta2 != 0) ? | |
efa27145 | 6514 | TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; |
60eb0b35 HMH |
6515 | } |
6516 | } else if (acpi_tmp7) { | |
e28393c0 HMH |
6517 | if (tpacpi_is_ibm() && |
6518 | acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { | |
a26f878a | 6519 | /* 600e/x, 770e, 770x */ |
efa27145 | 6520 | thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; |
a26f878a | 6521 | } else { |
e28393c0 | 6522 | /* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */ |
efa27145 | 6523 | thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; |
a26f878a HMH |
6524 | } |
6525 | } else { | |
6526 | /* temperatures not supported on 570, G4x, R30, R31, R32 */ | |
efa27145 | 6527 | thermal_read_mode = TPACPI_THERMAL_NONE; |
a26f878a | 6528 | } |
78f81cc4 | 6529 | |
fe08bc4b HMH |
6530 | vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", |
6531 | str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), | |
6532 | thermal_read_mode); | |
6533 | ||
35ff8b9f | 6534 | switch (thermal_read_mode) { |
2c37aa4e | 6535 | case TPACPI_THERMAL_TPEC_16: |
6b99e356 | 6536 | res = sysfs_create_group(&tpacpi_hwmon->kobj, |
2c37aa4e HMH |
6537 | &thermal_temp_input16_group); |
6538 | if (res) | |
6539 | return res; | |
6540 | break; | |
6541 | case TPACPI_THERMAL_TPEC_8: | |
6542 | case TPACPI_THERMAL_ACPI_TMP07: | |
6543 | case TPACPI_THERMAL_ACPI_UPDT: | |
6b99e356 | 6544 | res = sysfs_create_group(&tpacpi_hwmon->kobj, |
2c37aa4e HMH |
6545 | &thermal_temp_input8_group); |
6546 | if (res) | |
6547 | return res; | |
6548 | break; | |
6549 | case TPACPI_THERMAL_NONE: | |
6550 | default: | |
6551 | return 1; | |
6552 | } | |
6553 | ||
6554 | return 0; | |
6555 | } | |
6556 | ||
6557 | static void thermal_exit(void) | |
6558 | { | |
35ff8b9f | 6559 | switch (thermal_read_mode) { |
2c37aa4e | 6560 | case TPACPI_THERMAL_TPEC_16: |
6b99e356 | 6561 | sysfs_remove_group(&tpacpi_hwmon->kobj, |
2c37aa4e HMH |
6562 | &thermal_temp_input16_group); |
6563 | break; | |
6564 | case TPACPI_THERMAL_TPEC_8: | |
6565 | case TPACPI_THERMAL_ACPI_TMP07: | |
6566 | case TPACPI_THERMAL_ACPI_UPDT: | |
6b99e356 | 6567 | sysfs_remove_group(&tpacpi_hwmon->kobj, |
f04d5e01 | 6568 | &thermal_temp_input8_group); |
2c37aa4e HMH |
6569 | break; |
6570 | case TPACPI_THERMAL_NONE: | |
6571 | default: | |
6572 | break; | |
6573 | } | |
78f81cc4 BD |
6574 | } |
6575 | ||
887965e6 | 6576 | static int thermal_read(struct seq_file *m) |
a26f878a | 6577 | { |
a26f878a HMH |
6578 | int n, i; |
6579 | struct ibm_thermal_sensors_struct t; | |
6580 | ||
6581 | n = thermal_get_sensors(&t); | |
6582 | if (unlikely(n < 0)) | |
6583 | return n; | |
6584 | ||
887965e6 | 6585 | seq_printf(m, "temperatures:\t"); |
a26f878a HMH |
6586 | |
6587 | if (n > 0) { | |
6588 | for (i = 0; i < (n - 1); i++) | |
887965e6 AD |
6589 | seq_printf(m, "%d ", t.temp[i] / 1000); |
6590 | seq_printf(m, "%d\n", t.temp[i] / 1000); | |
a26f878a | 6591 | } else |
887965e6 | 6592 | seq_printf(m, "not supported\n"); |
78f81cc4 | 6593 | |
887965e6 | 6594 | return 0; |
78f81cc4 BD |
6595 | } |
6596 | ||
a5763f22 HMH |
6597 | static struct ibm_struct thermal_driver_data = { |
6598 | .name = "thermal", | |
6599 | .read = thermal_read, | |
2c37aa4e | 6600 | .exit = thermal_exit, |
a5763f22 HMH |
6601 | }; |
6602 | ||
56b6aeb0 HMH |
6603 | /************************************************************************* |
6604 | * Backlight/brightness subdriver | |
6605 | */ | |
6606 | ||
f74a27d4 HMH |
6607 | #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" |
6608 | ||
0e501834 HMH |
6609 | /* |
6610 | * ThinkPads can read brightness from two places: EC HBRV (0x31), or | |
6611 | * CMOS NVRAM byte 0x5E, bits 0-3. | |
6612 | * | |
6613 | * EC HBRV (0x31) has the following layout | |
6614 | * Bit 7: unknown function | |
6615 | * Bit 6: unknown function | |
6616 | * Bit 5: Z: honour scale changes, NZ: ignore scale changes | |
6617 | * Bit 4: must be set to zero to avoid problems | |
6618 | * Bit 3-0: backlight brightness level | |
6619 | * | |
6620 | * brightness_get_raw returns status data in the HBRV layout | |
d7880f10 HMH |
6621 | * |
6622 | * WARNING: The X61 has been verified to use HBRV for something else, so | |
6623 | * this should be used _only_ on IBM ThinkPads, and maybe with some careful | |
6624 | * testing on the very early *60 Lenovo models... | |
0e501834 HMH |
6625 | */ |
6626 | ||
e11aecf1 HMH |
6627 | enum { |
6628 | TP_EC_BACKLIGHT = 0x31, | |
6629 | ||
6630 | /* TP_EC_BACKLIGHT bitmasks */ | |
6631 | TP_EC_BACKLIGHT_LVLMSK = 0x1F, | |
6632 | TP_EC_BACKLIGHT_CMDMSK = 0xE0, | |
6633 | TP_EC_BACKLIGHT_MAPSW = 0x20, | |
6634 | }; | |
6635 | ||
0e501834 HMH |
6636 | enum tpacpi_brightness_access_mode { |
6637 | TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ | |
6638 | TPACPI_BRGHT_MODE_EC, /* EC control */ | |
6639 | TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ | |
6640 | TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
6641 | TPACPI_BRGHT_MODE_MAX | |
6642 | }; | |
6643 | ||
94954cc6 | 6644 | static struct backlight_device *ibm_backlight_device; |
0e501834 HMH |
6645 | |
6646 | static enum tpacpi_brightness_access_mode brightness_mode = | |
6647 | TPACPI_BRGHT_MODE_MAX; | |
6648 | ||
f74a27d4 HMH |
6649 | static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ |
6650 | ||
b21a15f6 | 6651 | static struct mutex brightness_mutex; |
56b6aeb0 | 6652 | |
0e501834 HMH |
6653 | /* NVRAM brightness access, |
6654 | * call with brightness_mutex held! */ | |
6655 | static unsigned int tpacpi_brightness_nvram_get(void) | |
b21a15f6 | 6656 | { |
0e501834 | 6657 | u8 lnvram; |
b21a15f6 | 6658 | |
0e501834 HMH |
6659 | lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) |
6660 | & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6661 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; | |
77775838 | 6662 | lnvram &= bright_maxlvl; |
0e501834 HMH |
6663 | |
6664 | return lnvram; | |
6665 | } | |
6666 | ||
6667 | static void tpacpi_brightness_checkpoint_nvram(void) | |
6668 | { | |
6669 | u8 lec = 0; | |
6670 | u8 b_nvram; | |
6671 | ||
6672 | if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) | |
6673 | return; | |
6674 | ||
6675 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6676 | "trying to checkpoint backlight level to NVRAM...\n"); | |
6677 | ||
6678 | if (mutex_lock_killable(&brightness_mutex) < 0) | |
6679 | return; | |
6680 | ||
6681 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6682 | goto unlock; | |
6683 | lec &= TP_EC_BACKLIGHT_LVLMSK; | |
6684 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); | |
6685 | ||
6686 | if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) | |
6687 | >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { | |
6688 | /* NVRAM needs update */ | |
6689 | b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << | |
6690 | TP_NVRAM_POS_LEVEL_BRIGHTNESS); | |
6691 | b_nvram |= lec; | |
6692 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); | |
6693 | dbg_printk(TPACPI_DBG_BRGHT, | |
6694 | "updated NVRAM backlight level to %u (0x%02x)\n", | |
6695 | (unsigned int) lec, (unsigned int) b_nvram); | |
6696 | } else | |
6697 | vdbg_printk(TPACPI_DBG_BRGHT, | |
6698 | "NVRAM backlight level already is %u (0x%02x)\n", | |
6699 | (unsigned int) lec, (unsigned int) b_nvram); | |
6700 | ||
6701 | unlock: | |
6702 | mutex_unlock(&brightness_mutex); | |
6703 | } | |
6704 | ||
6705 | ||
6706 | /* call with brightness_mutex held! */ | |
6707 | static int tpacpi_brightness_get_raw(int *status) | |
6708 | { | |
6709 | u8 lec = 0; | |
6710 | ||
6711 | switch (brightness_mode) { | |
6712 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6713 | *status = tpacpi_brightness_nvram_get(); | |
6714 | return 0; | |
6715 | case TPACPI_BRGHT_MODE_EC: | |
6716 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6717 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
2d5e94d7 | 6718 | return -EIO; |
0e501834 HMH |
6719 | *status = lec; |
6720 | return 0; | |
6721 | default: | |
6722 | return -ENXIO; | |
b21a15f6 | 6723 | } |
0e501834 HMH |
6724 | } |
6725 | ||
6726 | /* call with brightness_mutex held! */ | |
6727 | /* do NOT call with illegal backlight level value */ | |
6728 | static int tpacpi_brightness_set_ec(unsigned int value) | |
6729 | { | |
6730 | u8 lec = 0; | |
6731 | ||
6732 | if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) | |
6733 | return -EIO; | |
6734 | ||
6735 | if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, | |
6736 | (lec & TP_EC_BACKLIGHT_CMDMSK) | | |
6737 | (value & TP_EC_BACKLIGHT_LVLMSK)))) | |
6738 | return -EIO; | |
6739 | ||
6740 | return 0; | |
6741 | } | |
6742 | ||
6743 | /* call with brightness_mutex held! */ | |
6744 | static int tpacpi_brightness_set_ucmsstep(unsigned int value) | |
6745 | { | |
6746 | int cmos_cmd, inc; | |
6747 | unsigned int current_value, i; | |
6748 | ||
6749 | current_value = tpacpi_brightness_nvram_get(); | |
6750 | ||
6751 | if (value == current_value) | |
6752 | return 0; | |
6753 | ||
6754 | cmos_cmd = (value > current_value) ? | |
6755 | TP_CMOS_BRIGHTNESS_UP : | |
6756 | TP_CMOS_BRIGHTNESS_DOWN; | |
6757 | inc = (value > current_value) ? 1 : -1; | |
6758 | ||
6759 | for (i = current_value; i != value; i += inc) | |
6760 | if (issue_thinkpad_cmos_command(cmos_cmd)) | |
6761 | return -EIO; | |
b21a15f6 | 6762 | |
e11aecf1 | 6763 | return 0; |
b21a15f6 HMH |
6764 | } |
6765 | ||
6766 | /* May return EINTR which can always be mapped to ERESTARTSYS */ | |
0e501834 | 6767 | static int brightness_set(unsigned int value) |
b21a15f6 | 6768 | { |
0e501834 | 6769 | int res; |
b21a15f6 | 6770 | |
bd3c7b9e | 6771 | if (value > bright_maxlvl) |
b21a15f6 HMH |
6772 | return -EINVAL; |
6773 | ||
0e501834 HMH |
6774 | vdbg_printk(TPACPI_DBG_BRGHT, |
6775 | "set backlight level to %d\n", value); | |
6776 | ||
7646ea88 | 6777 | res = mutex_lock_killable(&brightness_mutex); |
b21a15f6 HMH |
6778 | if (res < 0) |
6779 | return res; | |
6780 | ||
0e501834 HMH |
6781 | switch (brightness_mode) { |
6782 | case TPACPI_BRGHT_MODE_EC: | |
6783 | case TPACPI_BRGHT_MODE_ECNVRAM: | |
6784 | res = tpacpi_brightness_set_ec(value); | |
6785 | break; | |
6786 | case TPACPI_BRGHT_MODE_UCMS_STEP: | |
6787 | res = tpacpi_brightness_set_ucmsstep(value); | |
6788 | break; | |
6789 | default: | |
6790 | res = -ENXIO; | |
b21a15f6 HMH |
6791 | } |
6792 | ||
b21a15f6 HMH |
6793 | mutex_unlock(&brightness_mutex); |
6794 | return res; | |
6795 | } | |
6796 | ||
6797 | /* sysfs backlight class ----------------------------------------------- */ | |
6798 | ||
6799 | static int brightness_update_status(struct backlight_device *bd) | |
6800 | { | |
0e501834 | 6801 | unsigned int level = |
b21a15f6 HMH |
6802 | (bd->props.fb_blank == FB_BLANK_UNBLANK && |
6803 | bd->props.power == FB_BLANK_UNBLANK) ? | |
0e501834 HMH |
6804 | bd->props.brightness : 0; |
6805 | ||
6806 | dbg_printk(TPACPI_DBG_BRGHT, | |
6807 | "backlight: attempt to set level to %d\n", | |
6808 | level); | |
6809 | ||
6810 | /* it is the backlight class's job (caller) to handle | |
6811 | * EINTR and other errors properly */ | |
6812 | return brightness_set(level); | |
b21a15f6 HMH |
6813 | } |
6814 | ||
e11aecf1 | 6815 | static int brightness_get(struct backlight_device *bd) |
a3f104c0 | 6816 | { |
e11aecf1 | 6817 | int status, res; |
a3f104c0 | 6818 | |
0e501834 | 6819 | res = mutex_lock_killable(&brightness_mutex); |
e11aecf1 | 6820 | if (res < 0) |
0e501834 HMH |
6821 | return 0; |
6822 | ||
6823 | res = tpacpi_brightness_get_raw(&status); | |
6824 | ||
6825 | mutex_unlock(&brightness_mutex); | |
6826 | ||
6827 | if (res < 0) | |
6828 | return 0; | |
e11e211a | 6829 | |
e11aecf1 | 6830 | return status & TP_EC_BACKLIGHT_LVLMSK; |
e11e211a HMH |
6831 | } |
6832 | ||
347a2686 HMH |
6833 | static void tpacpi_brightness_notify_change(void) |
6834 | { | |
6835 | backlight_force_update(ibm_backlight_device, | |
6836 | BACKLIGHT_UPDATE_HOTKEY); | |
6837 | } | |
6838 | ||
acc2472e | 6839 | static const struct backlight_ops ibm_backlight_data = { |
35ff8b9f HMH |
6840 | .get_brightness = brightness_get, |
6841 | .update_status = brightness_update_status, | |
56b6aeb0 | 6842 | }; |
e11e211a | 6843 | |
b21a15f6 | 6844 | /* --------------------------------------------------------------------- */ |
e11e211a | 6845 | |
122f2672 HMH |
6846 | /* |
6847 | * Call _BCL method of video device. On some ThinkPads this will | |
6848 | * switch the firmware to the ACPI brightness control mode. | |
6849 | */ | |
6850 | ||
77775838 HMH |
6851 | static int __init tpacpi_query_bcl_levels(acpi_handle handle) |
6852 | { | |
6853 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
6854 | union acpi_object *obj; | |
46445b6b | 6855 | struct acpi_device *device, *child; |
77775838 HMH |
6856 | int rc; |
6857 | ||
46445b6b AL |
6858 | if (acpi_bus_get_device(handle, &device)) |
6859 | return 0; | |
6860 | ||
6861 | rc = 0; | |
6862 | list_for_each_entry(child, &device->children, node) { | |
6863 | acpi_status status = acpi_evaluate_object(child->handle, "_BCL", | |
6864 | NULL, &buffer); | |
6865 | if (ACPI_FAILURE(status)) | |
6866 | continue; | |
6867 | ||
77775838 HMH |
6868 | obj = (union acpi_object *)buffer.pointer; |
6869 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { | |
0978e012 | 6870 | pr_err("Unknown _BCL data, please report this to %s\n", |
46445b6b | 6871 | TPACPI_MAIL); |
77775838 HMH |
6872 | rc = 0; |
6873 | } else { | |
6874 | rc = obj->package.count; | |
6875 | } | |
46445b6b | 6876 | break; |
77775838 HMH |
6877 | } |
6878 | ||
6879 | kfree(buffer.pointer); | |
6880 | return rc; | |
6881 | } | |
6882 | ||
77775838 HMH |
6883 | |
6884 | /* | |
6885 | * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map | |
6886 | */ | |
6887 | static unsigned int __init tpacpi_check_std_acpi_brightness_support(void) | |
6888 | { | |
122f2672 | 6889 | acpi_handle video_device; |
77775838 | 6890 | int bcl_levels = 0; |
77775838 | 6891 | |
46445b6b | 6892 | tpacpi_acpi_handle_locate("video", NULL, &video_device); |
122f2672 HMH |
6893 | if (video_device) |
6894 | bcl_levels = tpacpi_query_bcl_levels(video_device); | |
77775838 | 6895 | |
122f2672 | 6896 | tp_features.bright_acpimode = (bcl_levels > 0); |
77775838 | 6897 | |
122f2672 | 6898 | return (bcl_levels > 2) ? (bcl_levels - 2) : 0; |
77775838 HMH |
6899 | } |
6900 | ||
59fe4fe3 HMH |
6901 | /* |
6902 | * These are only useful for models that have only one possibility | |
6903 | * of GPU. If the BIOS model handles both ATI and Intel, don't use | |
6904 | * these quirks. | |
6905 | */ | |
6906 | #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ | |
6907 | #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ | |
6908 | #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ | |
6909 | ||
6910 | static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { | |
6911 | /* Models with ATI GPUs known to require ECNVRAM mode */ | |
6912 | TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ | |
6913 | ||
6da25bf5 | 6914 | /* Models with ATI GPUs that can use ECNVRAM */ |
7d1894d8 | 6915 | TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ |
59fe4fe3 | 6916 | TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
7d1894d8 | 6917 | TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ |
59fe4fe3 HMH |
6918 | TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6919 | ||
6da25bf5 | 6920 | /* Models with Intel Extreme Graphics 2 */ |
7d1894d8 | 6921 | TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ |
a9f8eacc HMH |
6922 | TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), |
6923 | TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), | |
59fe4fe3 HMH |
6924 | |
6925 | /* Models with Intel GMA900 */ | |
6926 | TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ | |
6927 | TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ | |
6928 | TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ | |
6929 | }; | |
6930 | ||
77775838 HMH |
6931 | /* |
6932 | * Returns < 0 for error, otherwise sets tp_features.bright_* | |
6933 | * and bright_maxlvl. | |
6934 | */ | |
6935 | static void __init tpacpi_detect_brightness_capabilities(void) | |
6936 | { | |
6937 | unsigned int b; | |
6938 | ||
6939 | vdbg_printk(TPACPI_DBG_INIT, | |
6940 | "detecting firmware brightness interface capabilities\n"); | |
6941 | ||
6942 | /* we could run a quirks check here (same table used by | |
6943 | * brightness_init) if needed */ | |
6944 | ||
6945 | /* | |
6946 | * We always attempt to detect acpi support, so as to switch | |
6947 | * Lenovo Vista BIOS to ACPI brightness mode even if we are not | |
6948 | * going to publish a backlight interface | |
6949 | */ | |
6950 | b = tpacpi_check_std_acpi_brightness_support(); | |
6951 | switch (b) { | |
6952 | case 16: | |
6953 | bright_maxlvl = 15; | |
77775838 HMH |
6954 | break; |
6955 | case 8: | |
6956 | case 0: | |
6957 | bright_maxlvl = 7; | |
77775838 HMH |
6958 | break; |
6959 | default: | |
77775838 HMH |
6960 | tp_features.bright_unkfw = 1; |
6961 | bright_maxlvl = b - 1; | |
6962 | } | |
15c75626 | 6963 | pr_debug("detected %u brightness levels\n", bright_maxlvl + 1); |
77775838 HMH |
6964 | } |
6965 | ||
a5763f22 | 6966 | static int __init brightness_init(struct ibm_init_struct *iibm) |
56b6aeb0 | 6967 | { |
a19a6ee6 | 6968 | struct backlight_properties props; |
56b6aeb0 | 6969 | int b; |
59fe4fe3 | 6970 | unsigned long quirks; |
56b6aeb0 | 6971 | |
fe08bc4b HMH |
6972 | vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); |
6973 | ||
f432255e HMH |
6974 | mutex_init(&brightness_mutex); |
6975 | ||
59fe4fe3 HMH |
6976 | quirks = tpacpi_check_quirks(brightness_quirk_table, |
6977 | ARRAY_SIZE(brightness_quirk_table)); | |
6978 | ||
77775838 HMH |
6979 | /* tpacpi_detect_brightness_capabilities() must have run already */ |
6980 | ||
6981 | /* if it is unknown, we don't handle it: it wouldn't be safe */ | |
6982 | if (tp_features.bright_unkfw) | |
6983 | return 1; | |
2dba1b5d | 6984 | |
b5972796 | 6985 | if (!brightness_enable) { |
0e501834 | 6986 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
5cac62ac | 6987 | "brightness support disabled by module parameter\n"); |
b5972796 HMH |
6988 | return 1; |
6989 | } | |
6990 | ||
b33c6ce5 | 6991 | if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { |
217f0963 | 6992 | if (brightness_enable > 1) { |
5cac62ac | 6993 | pr_info("Standard ACPI backlight interface available, not loading native one\n"); |
217f0963 HMH |
6994 | return 1; |
6995 | } else if (brightness_enable == 1) { | |
5cac62ac | 6996 | pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n"); |
217f0963 HMH |
6997 | return 1; |
6998 | } | |
6999 | } else if (tp_features.bright_acpimode && brightness_enable > 1) { | |
5cac62ac | 7000 | pr_notice("Standard ACPI backlight interface not available, thinkpad_acpi native brightness control enabled\n"); |
217f0963 HMH |
7001 | } |
7002 | ||
0e501834 HMH |
7003 | /* |
7004 | * Check for module parameter bogosity, note that we | |
7005 | * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be | |
7006 | * able to detect "unspecified" | |
7007 | */ | |
7008 | if (brightness_mode > TPACPI_BRGHT_MODE_MAX) | |
7009 | return -EINVAL; | |
24d3b774 | 7010 | |
0e501834 HMH |
7011 | /* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ |
7012 | if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || | |
7013 | brightness_mode == TPACPI_BRGHT_MODE_MAX) { | |
59fe4fe3 HMH |
7014 | if (quirks & TPACPI_BRGHT_Q_EC) |
7015 | brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; | |
7016 | else | |
0e501834 | 7017 | brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; |
24d3b774 | 7018 | |
0e501834 | 7019 | dbg_printk(TPACPI_DBG_BRGHT, |
59fe4fe3 | 7020 | "driver auto-selected brightness_mode=%d\n", |
0e501834 HMH |
7021 | brightness_mode); |
7022 | } | |
24d3b774 | 7023 | |
d7880f10 | 7024 | /* Safety */ |
e28393c0 | 7025 | if (!tpacpi_is_ibm() && |
d7880f10 HMH |
7026 | (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || |
7027 | brightness_mode == TPACPI_BRGHT_MODE_EC)) | |
7028 | return -EINVAL; | |
7029 | ||
0e501834 | 7030 | if (tpacpi_brightness_get_raw(&b) < 0) |
24d3b774 | 7031 | return 1; |
56b6aeb0 | 7032 | |
a19a6ee6 | 7033 | memset(&props, 0, sizeof(struct backlight_properties)); |
bb7ca747 | 7034 | props.type = BACKLIGHT_PLATFORM; |
77775838 HMH |
7035 | props.max_brightness = bright_maxlvl; |
7036 | props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; | |
a19a6ee6 MG |
7037 | ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, |
7038 | NULL, NULL, | |
7039 | &ibm_backlight_data, | |
7040 | &props); | |
56b6aeb0 | 7041 | if (IS_ERR(ibm_backlight_device)) { |
435c47e2 HMH |
7042 | int rc = PTR_ERR(ibm_backlight_device); |
7043 | ibm_backlight_device = NULL; | |
0978e012 | 7044 | pr_err("Could not register backlight device\n"); |
435c47e2 | 7045 | return rc; |
56b6aeb0 | 7046 | } |
0e501834 HMH |
7047 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
7048 | "brightness is supported\n"); | |
56b6aeb0 | 7049 | |
59fe4fe3 | 7050 | if (quirks & TPACPI_BRGHT_Q_ASK) { |
5cac62ac AS |
7051 | pr_notice("brightness: will use unverified default: brightness_mode=%d\n", |
7052 | brightness_mode); | |
7053 | pr_notice("brightness: please report to %s whether it works well or not on your ThinkPad\n", | |
7054 | TPACPI_MAIL); | |
59fe4fe3 HMH |
7055 | } |
7056 | ||
7d9745cf HMH |
7057 | /* Added by mistake in early 2007. Probably useless, but it could |
7058 | * be working around some unknown firmware problem where the value | |
7059 | * read at startup doesn't match the real hardware state... so leave | |
7060 | * it in place just in case */ | |
56b6aeb0 HMH |
7061 | backlight_update_status(ibm_backlight_device); |
7062 | ||
347a2686 | 7063 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, |
5cac62ac | 7064 | "brightness: registering brightness hotkeys as change notification\n"); |
347a2686 HMH |
7065 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask |
7066 | | TP_ACPI_HKEY_BRGHTUP_MASK | |
3098064d | 7067 | | TP_ACPI_HKEY_BRGHTDWN_MASK); |
56b6aeb0 HMH |
7068 | return 0; |
7069 | } | |
7070 | ||
fd3c3a42 | 7071 | static void brightness_suspend(void) |
0e501834 HMH |
7072 | { |
7073 | tpacpi_brightness_checkpoint_nvram(); | |
7074 | } | |
7075 | ||
7076 | static void brightness_shutdown(void) | |
7077 | { | |
7078 | tpacpi_brightness_checkpoint_nvram(); | |
7079 | } | |
7080 | ||
56b6aeb0 HMH |
7081 | static void brightness_exit(void) |
7082 | { | |
7083 | if (ibm_backlight_device) { | |
0e501834 | 7084 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, |
fe08bc4b | 7085 | "calling backlight_device_unregister()\n"); |
56b6aeb0 | 7086 | backlight_device_unregister(ibm_backlight_device); |
56b6aeb0 | 7087 | } |
0e501834 HMH |
7088 | |
7089 | tpacpi_brightness_checkpoint_nvram(); | |
56b6aeb0 HMH |
7090 | } |
7091 | ||
887965e6 | 7092 | static int brightness_read(struct seq_file *m) |
56b6aeb0 | 7093 | { |
56b6aeb0 HMH |
7094 | int level; |
7095 | ||
35ff8b9f HMH |
7096 | level = brightness_get(NULL); |
7097 | if (level < 0) { | |
887965e6 | 7098 | seq_printf(m, "level:\t\tunreadable\n"); |
56b6aeb0 | 7099 | } else { |
887965e6 AD |
7100 | seq_printf(m, "level:\t\t%d\n", level); |
7101 | seq_printf(m, "commands:\tup, down\n"); | |
77775838 HMH |
7102 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", |
7103 | bright_maxlvl); | |
56b6aeb0 HMH |
7104 | } |
7105 | ||
887965e6 | 7106 | return 0; |
56b6aeb0 HMH |
7107 | } |
7108 | ||
8acb0250 HM |
7109 | static int brightness_write(char *buf) |
7110 | { | |
7111 | int level; | |
4273af8d | 7112 | int rc; |
1da177e4 | 7113 | char *cmd; |
1da177e4 | 7114 | |
4273af8d HMH |
7115 | level = brightness_get(NULL); |
7116 | if (level < 0) | |
7117 | return level; | |
78f81cc4 | 7118 | |
4273af8d | 7119 | while ((cmd = next_cmd(&buf))) { |
78f81cc4 | 7120 | if (strlencmp(cmd, "up") == 0) { |
77775838 | 7121 | if (level < bright_maxlvl) |
4273af8d | 7122 | level++; |
78f81cc4 | 7123 | } else if (strlencmp(cmd, "down") == 0) { |
4273af8d HMH |
7124 | if (level > 0) |
7125 | level--; | |
7126 | } else if (sscanf(cmd, "level %d", &level) == 1 && | |
77775838 | 7127 | level >= 0 && level <= bright_maxlvl) { |
4273af8d | 7128 | /* new level set */ |
78f81cc4 BD |
7129 | } else |
7130 | return -EINVAL; | |
78f81cc4 BD |
7131 | } |
7132 | ||
0e501834 HMH |
7133 | tpacpi_disclose_usertask("procfs brightness", |
7134 | "set level to %d\n", level); | |
7135 | ||
4273af8d HMH |
7136 | /* |
7137 | * Now we know what the final level should be, so we try to set it. | |
7138 | * Doing it this way makes the syscall restartable in case of EINTR | |
7139 | */ | |
7140 | rc = brightness_set(level); | |
347a2686 HMH |
7141 | if (!rc && ibm_backlight_device) |
7142 | backlight_force_update(ibm_backlight_device, | |
7143 | BACKLIGHT_UPDATE_SYSFS); | |
72a979f0 | 7144 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7145 | } |
7146 | ||
a5763f22 HMH |
7147 | static struct ibm_struct brightness_driver_data = { |
7148 | .name = "brightness", | |
7149 | .read = brightness_read, | |
7150 | .write = brightness_write, | |
7151 | .exit = brightness_exit, | |
0e501834 HMH |
7152 | .suspend = brightness_suspend, |
7153 | .shutdown = brightness_shutdown, | |
a5763f22 HMH |
7154 | }; |
7155 | ||
56b6aeb0 HMH |
7156 | /************************************************************************* |
7157 | * Volume subdriver | |
7158 | */ | |
fb87a811 | 7159 | |
329e4e18 HMH |
7160 | /* |
7161 | * IBM ThinkPads have a simple volume controller with MUTE gating. | |
7162 | * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. | |
7163 | * | |
7164 | * Since the *61 series (and probably also the later *60 series), Lenovo | |
7165 | * ThinkPads only implement the MUTE gate. | |
7166 | * | |
7167 | * EC register 0x30 | |
7168 | * Bit 6: MUTE (1 mutes sound) | |
7169 | * Bit 3-0: Volume | |
7170 | * Other bits should be zero as far as we know. | |
7171 | * | |
7172 | * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and | |
7173 | * bits 3-0 (volume). Other bits in NVRAM may have other functions, | |
7174 | * such as bit 7 which is used to detect repeated presses of MUTE, | |
7175 | * and we leave them unchanged. | |
9a417ec0 AL |
7176 | * |
7177 | * On newer Lenovo ThinkPads, the EC can automatically change the volume | |
7178 | * in response to user input. Unfortunately, this rarely works well. | |
7179 | * The laptop changes the state of its internal MUTE gate and, on some | |
7180 | * models, sends KEY_MUTE, causing any user code that responds to the | |
7181 | * mute button to get confused. The hardware MUTE gate is also | |
7182 | * unnecessary, since user code can handle the mute button without | |
7183 | * kernel or EC help. | |
7184 | * | |
7185 | * To avoid confusing userspace, we simply disable all EC-based mute | |
7186 | * and volume controls when possible. | |
329e4e18 HMH |
7187 | */ |
7188 | ||
ff850c33 HMH |
7189 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
7190 | ||
0d204c34 HMH |
7191 | #define TPACPI_ALSA_DRVNAME "ThinkPad EC" |
7192 | #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" | |
7193 | #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME | |
7194 | ||
cab66613 TI |
7195 | #if SNDRV_CARDS <= 32 |
7196 | #define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1) | |
7197 | #else | |
7198 | #define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1) | |
7199 | #endif | |
7200 | static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */ | |
0d204c34 | 7201 | static char *alsa_id = "ThinkPadEC"; |
90ab5ee9 | 7202 | static bool alsa_enable = SNDRV_DEFAULT_ENABLE1; |
0d204c34 HMH |
7203 | |
7204 | struct tpacpi_alsa_data { | |
7205 | struct snd_card *card; | |
7206 | struct snd_ctl_elem_id *ctl_mute_id; | |
7207 | struct snd_ctl_elem_id *ctl_vol_id; | |
7208 | }; | |
7209 | ||
7210 | static struct snd_card *alsa_card; | |
7211 | ||
329e4e18 HMH |
7212 | enum { |
7213 | TP_EC_AUDIO = 0x30, | |
7214 | ||
7215 | /* TP_EC_AUDIO bits */ | |
7216 | TP_EC_AUDIO_MUTESW = 6, | |
7217 | ||
7218 | /* TP_EC_AUDIO bitmasks */ | |
7219 | TP_EC_AUDIO_LVL_MSK = 0x0F, | |
7220 | TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), | |
7221 | ||
7222 | /* Maximum volume */ | |
7223 | TP_EC_VOLUME_MAX = 14, | |
7224 | }; | |
7225 | ||
7226 | enum tpacpi_volume_access_mode { | |
7227 | TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ | |
7228 | TPACPI_VOL_MODE_EC, /* Pure EC control */ | |
7229 | TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ | |
7230 | TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ | |
7231 | TPACPI_VOL_MODE_MAX | |
7232 | }; | |
7233 | ||
a112ceee HMH |
7234 | enum tpacpi_volume_capabilities { |
7235 | TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ | |
7236 | TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ | |
7237 | TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ | |
7238 | TPACPI_VOL_CAP_MAX | |
7239 | }; | |
7240 | ||
9a417ec0 AL |
7241 | enum tpacpi_mute_btn_mode { |
7242 | TP_EC_MUTE_BTN_LATCH = 0, /* Mute mutes; up/down unmutes */ | |
7243 | /* We don't know what mode 1 is. */ | |
7244 | TP_EC_MUTE_BTN_NONE = 2, /* Mute and up/down are just keys */ | |
7245 | TP_EC_MUTE_BTN_TOGGLE = 3, /* Mute toggles; up/down unmutes */ | |
7246 | }; | |
7247 | ||
329e4e18 HMH |
7248 | static enum tpacpi_volume_access_mode volume_mode = |
7249 | TPACPI_VOL_MODE_MAX; | |
7250 | ||
a112ceee | 7251 | static enum tpacpi_volume_capabilities volume_capabilities; |
90ab5ee9 | 7252 | static bool volume_control_allowed; |
9a417ec0 AL |
7253 | static bool software_mute_requested = true; |
7254 | static bool software_mute_active; | |
7255 | static int software_mute_orig_mode; | |
f74a27d4 | 7256 | |
329e4e18 HMH |
7257 | /* |
7258 | * Used to syncronize writers to TP_EC_AUDIO and | |
7259 | * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write | |
7260 | */ | |
7261 | static struct mutex volume_mutex; | |
7262 | ||
7263 | static void tpacpi_volume_checkpoint_nvram(void) | |
78f81cc4 | 7264 | { |
329e4e18 HMH |
7265 | u8 lec = 0; |
7266 | u8 b_nvram; | |
a112ceee | 7267 | u8 ec_mask; |
329e4e18 HMH |
7268 | |
7269 | if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) | |
7270 | return; | |
c7ac6291 HMH |
7271 | if (!volume_control_allowed) |
7272 | return; | |
9a417ec0 AL |
7273 | if (software_mute_active) |
7274 | return; | |
329e4e18 HMH |
7275 | |
7276 | vdbg_printk(TPACPI_DBG_MIXER, | |
7277 | "trying to checkpoint mixer state to NVRAM...\n"); | |
78f81cc4 | 7278 | |
a112ceee HMH |
7279 | if (tp_features.mixer_no_level_control) |
7280 | ec_mask = TP_EC_AUDIO_MUTESW_MSK; | |
7281 | else | |
7282 | ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; | |
7283 | ||
329e4e18 HMH |
7284 | if (mutex_lock_killable(&volume_mutex) < 0) |
7285 | return; | |
7286 | ||
7287 | if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) | |
7288 | goto unlock; | |
7289 | lec &= ec_mask; | |
7290 | b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); | |
7291 | ||
7292 | if (lec != (b_nvram & ec_mask)) { | |
7293 | /* NVRAM needs update */ | |
7294 | b_nvram &= ~ec_mask; | |
7295 | b_nvram |= lec; | |
7296 | nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); | |
7297 | dbg_printk(TPACPI_DBG_MIXER, | |
7298 | "updated NVRAM mixer status to 0x%02x (0x%02x)\n", | |
7299 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 | 7300 | } else { |
329e4e18 HMH |
7301 | vdbg_printk(TPACPI_DBG_MIXER, |
7302 | "NVRAM mixer status already is 0x%02x (0x%02x)\n", | |
7303 | (unsigned int) lec, (unsigned int) b_nvram); | |
78f81cc4 BD |
7304 | } |
7305 | ||
329e4e18 HMH |
7306 | unlock: |
7307 | mutex_unlock(&volume_mutex); | |
78f81cc4 BD |
7308 | } |
7309 | ||
329e4e18 | 7310 | static int volume_get_status_ec(u8 *status) |
78f81cc4 | 7311 | { |
329e4e18 | 7312 | u8 s; |
78f81cc4 | 7313 | |
329e4e18 HMH |
7314 | if (!acpi_ec_read(TP_EC_AUDIO, &s)) |
7315 | return -EIO; | |
78f81cc4 | 7316 | |
329e4e18 | 7317 | *status = s; |
1da177e4 | 7318 | |
329e4e18 | 7319 | dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); |
35ff8b9f | 7320 | |
329e4e18 HMH |
7321 | return 0; |
7322 | } | |
78f81cc4 | 7323 | |
329e4e18 HMH |
7324 | static int volume_get_status(u8 *status) |
7325 | { | |
7326 | return volume_get_status_ec(status); | |
7327 | } | |
78f81cc4 | 7328 | |
329e4e18 HMH |
7329 | static int volume_set_status_ec(const u8 status) |
7330 | { | |
7331 | if (!acpi_ec_write(TP_EC_AUDIO, status)) | |
7332 | return -EIO; | |
78f81cc4 | 7333 | |
329e4e18 HMH |
7334 | dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); |
7335 | ||
9a417ec0 AL |
7336 | /* |
7337 | * On X200s, and possibly on others, it can take a while for | |
7338 | * reads to become correct. | |
7339 | */ | |
7340 | msleep(1); | |
7341 | ||
329e4e18 HMH |
7342 | return 0; |
7343 | } | |
7344 | ||
7345 | static int volume_set_status(const u8 status) | |
7346 | { | |
7347 | return volume_set_status_ec(status); | |
7348 | } | |
7349 | ||
88cc8377 HMH |
7350 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7351 | static int __volume_set_mute_ec(const bool mute) | |
329e4e18 HMH |
7352 | { |
7353 | int rc; | |
7354 | u8 s, n; | |
7355 | ||
7356 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7357 | return -EINTR; | |
7358 | ||
7359 | rc = volume_get_status_ec(&s); | |
7360 | if (rc) | |
7361 | goto unlock; | |
7362 | ||
7363 | n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : | |
7364 | s & ~TP_EC_AUDIO_MUTESW_MSK; | |
7365 | ||
88cc8377 | 7366 | if (n != s) { |
329e4e18 | 7367 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7368 | if (!rc) |
7369 | rc = 1; | |
7370 | } | |
329e4e18 HMH |
7371 | |
7372 | unlock: | |
7373 | mutex_unlock(&volume_mutex); | |
7374 | return rc; | |
7375 | } | |
7376 | ||
88cc8377 HMH |
7377 | static int volume_alsa_set_mute(const bool mute) |
7378 | { | |
7379 | dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", | |
7380 | (mute) ? "" : "un"); | |
7381 | return __volume_set_mute_ec(mute); | |
7382 | } | |
7383 | ||
329e4e18 HMH |
7384 | static int volume_set_mute(const bool mute) |
7385 | { | |
88cc8377 HMH |
7386 | int rc; |
7387 | ||
329e4e18 HMH |
7388 | dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", |
7389 | (mute) ? "" : "un"); | |
88cc8377 HMH |
7390 | |
7391 | rc = __volume_set_mute_ec(mute); | |
7392 | return (rc < 0) ? rc : 0; | |
329e4e18 HMH |
7393 | } |
7394 | ||
88cc8377 HMH |
7395 | /* returns < 0 on error, 0 on no change, 1 on change */ |
7396 | static int __volume_set_volume_ec(const u8 vol) | |
329e4e18 HMH |
7397 | { |
7398 | int rc; | |
7399 | u8 s, n; | |
7400 | ||
7401 | if (vol > TP_EC_VOLUME_MAX) | |
7402 | return -EINVAL; | |
7403 | ||
7404 | if (mutex_lock_killable(&volume_mutex) < 0) | |
7405 | return -EINTR; | |
7406 | ||
7407 | rc = volume_get_status_ec(&s); | |
7408 | if (rc) | |
7409 | goto unlock; | |
7410 | ||
7411 | n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; | |
7412 | ||
88cc8377 | 7413 | if (n != s) { |
329e4e18 | 7414 | rc = volume_set_status_ec(n); |
88cc8377 HMH |
7415 | if (!rc) |
7416 | rc = 1; | |
7417 | } | |
329e4e18 HMH |
7418 | |
7419 | unlock: | |
7420 | mutex_unlock(&volume_mutex); | |
7421 | return rc; | |
7422 | } | |
7423 | ||
9a417ec0 AL |
7424 | static int volume_set_software_mute(bool startup) |
7425 | { | |
7426 | int result; | |
7427 | ||
7428 | if (!tpacpi_is_lenovo()) | |
7429 | return -ENODEV; | |
7430 | ||
7431 | if (startup) { | |
7432 | if (!acpi_evalf(ec_handle, &software_mute_orig_mode, | |
7433 | "HAUM", "qd")) | |
7434 | return -EIO; | |
7435 | ||
7436 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7437 | "Initial HAUM setting was %d\n", | |
7438 | software_mute_orig_mode); | |
7439 | } | |
7440 | ||
7441 | if (!acpi_evalf(ec_handle, &result, "SAUM", "qdd", | |
7442 | (int)TP_EC_MUTE_BTN_NONE)) | |
7443 | return -EIO; | |
7444 | ||
7445 | if (result != TP_EC_MUTE_BTN_NONE) | |
7446 | pr_warn("Unexpected SAUM result %d\n", | |
7447 | result); | |
7448 | ||
7449 | /* | |
7450 | * In software mute mode, the standard codec controls take | |
7451 | * precendence, so we unmute the ThinkPad HW switch at | |
7452 | * startup. Just on case there are SAUM-capable ThinkPads | |
7453 | * with level controls, set max HW volume as well. | |
7454 | */ | |
7455 | if (tp_features.mixer_no_level_control) | |
7456 | result = volume_set_mute(false); | |
7457 | else | |
7458 | result = volume_set_status(TP_EC_VOLUME_MAX); | |
7459 | ||
7460 | if (result != 0) | |
7461 | pr_warn("Failed to unmute the HW mute switch\n"); | |
7462 | ||
7463 | return 0; | |
7464 | } | |
7465 | ||
7466 | static void volume_exit_software_mute(void) | |
7467 | { | |
7468 | int r; | |
7469 | ||
7470 | if (!acpi_evalf(ec_handle, &r, "SAUM", "qdd", software_mute_orig_mode) | |
7471 | || r != software_mute_orig_mode) | |
7472 | pr_warn("Failed to restore mute mode\n"); | |
7473 | } | |
7474 | ||
88cc8377 | 7475 | static int volume_alsa_set_volume(const u8 vol) |
329e4e18 HMH |
7476 | { |
7477 | dbg_printk(TPACPI_DBG_MIXER, | |
88cc8377 HMH |
7478 | "ALSA: trying to set volume level to %hu\n", vol); |
7479 | return __volume_set_volume_ec(vol); | |
329e4e18 HMH |
7480 | } |
7481 | ||
0d204c34 HMH |
7482 | static void volume_alsa_notify_change(void) |
7483 | { | |
7484 | struct tpacpi_alsa_data *d; | |
7485 | ||
7486 | if (alsa_card && alsa_card->private_data) { | |
7487 | d = alsa_card->private_data; | |
7488 | if (d->ctl_mute_id) | |
7489 | snd_ctl_notify(alsa_card, | |
7490 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7491 | d->ctl_mute_id); | |
7492 | if (d->ctl_vol_id) | |
7493 | snd_ctl_notify(alsa_card, | |
7494 | SNDRV_CTL_EVENT_MASK_VALUE, | |
7495 | d->ctl_vol_id); | |
7496 | } | |
7497 | } | |
7498 | ||
7499 | static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, | |
7500 | struct snd_ctl_elem_info *uinfo) | |
7501 | { | |
7502 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
7503 | uinfo->count = 1; | |
7504 | uinfo->value.integer.min = 0; | |
7505 | uinfo->value.integer.max = TP_EC_VOLUME_MAX; | |
7506 | return 0; | |
7507 | } | |
7508 | ||
7509 | static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, | |
7510 | struct snd_ctl_elem_value *ucontrol) | |
7511 | { | |
7512 | u8 s; | |
7513 | int rc; | |
7514 | ||
7515 | rc = volume_get_status(&s); | |
7516 | if (rc < 0) | |
7517 | return rc; | |
7518 | ||
7519 | ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; | |
7520 | return 0; | |
7521 | } | |
7522 | ||
7523 | static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, | |
7524 | struct snd_ctl_elem_value *ucontrol) | |
7525 | { | |
38e11cde HMH |
7526 | tpacpi_disclose_usertask("ALSA", "set volume to %ld\n", |
7527 | ucontrol->value.integer.value[0]); | |
88cc8377 | 7528 | return volume_alsa_set_volume(ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7529 | } |
7530 | ||
7531 | #define volume_alsa_mute_info snd_ctl_boolean_mono_info | |
7532 | ||
7533 | static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, | |
7534 | struct snd_ctl_elem_value *ucontrol) | |
7535 | { | |
7536 | u8 s; | |
7537 | int rc; | |
7538 | ||
7539 | rc = volume_get_status(&s); | |
7540 | if (rc < 0) | |
7541 | return rc; | |
7542 | ||
7543 | ucontrol->value.integer.value[0] = | |
7544 | (s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; | |
7545 | return 0; | |
7546 | } | |
7547 | ||
7548 | static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, | |
7549 | struct snd_ctl_elem_value *ucontrol) | |
7550 | { | |
38e11cde HMH |
7551 | tpacpi_disclose_usertask("ALSA", "%smute\n", |
7552 | ucontrol->value.integer.value[0] ? | |
7553 | "un" : ""); | |
88cc8377 | 7554 | return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); |
0d204c34 HMH |
7555 | } |
7556 | ||
c3aa4723 | 7557 | static struct snd_kcontrol_new volume_alsa_control_vol __initdata = { |
0d204c34 HMH |
7558 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7559 | .name = "Console Playback Volume", | |
7560 | .index = 0, | |
7561 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7562 | .info = volume_alsa_vol_info, | |
7563 | .get = volume_alsa_vol_get, | |
7564 | }; | |
7565 | ||
c3aa4723 | 7566 | static struct snd_kcontrol_new volume_alsa_control_mute __initdata = { |
0d204c34 HMH |
7567 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
7568 | .name = "Console Playback Switch", | |
7569 | .index = 0, | |
7570 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
7571 | .info = volume_alsa_mute_info, | |
7572 | .get = volume_alsa_mute_get, | |
7573 | }; | |
7574 | ||
fd3c3a42 | 7575 | static void volume_suspend(void) |
329e4e18 HMH |
7576 | { |
7577 | tpacpi_volume_checkpoint_nvram(); | |
7578 | } | |
7579 | ||
0d204c34 HMH |
7580 | static void volume_resume(void) |
7581 | { | |
9a417ec0 AL |
7582 | if (software_mute_active) { |
7583 | if (volume_set_software_mute(false) < 0) | |
7584 | pr_warn("Failed to restore software mute\n"); | |
7585 | } else { | |
7586 | volume_alsa_notify_change(); | |
7587 | } | |
0d204c34 HMH |
7588 | } |
7589 | ||
329e4e18 HMH |
7590 | static void volume_shutdown(void) |
7591 | { | |
7592 | tpacpi_volume_checkpoint_nvram(); | |
7593 | } | |
7594 | ||
7595 | static void volume_exit(void) | |
7596 | { | |
0d204c34 HMH |
7597 | if (alsa_card) { |
7598 | snd_card_free(alsa_card); | |
7599 | alsa_card = NULL; | |
7600 | } | |
7601 | ||
329e4e18 | 7602 | tpacpi_volume_checkpoint_nvram(); |
9a417ec0 AL |
7603 | |
7604 | if (software_mute_active) | |
7605 | volume_exit_software_mute(); | |
329e4e18 HMH |
7606 | } |
7607 | ||
0d204c34 HMH |
7608 | static int __init volume_create_alsa_mixer(void) |
7609 | { | |
7610 | struct snd_card *card; | |
7611 | struct tpacpi_alsa_data *data; | |
7612 | struct snd_kcontrol *ctl_vol; | |
7613 | struct snd_kcontrol *ctl_mute; | |
7614 | int rc; | |
7615 | ||
89235e55 TI |
7616 | rc = snd_card_new(&tpacpi_pdev->dev, |
7617 | alsa_index, alsa_id, THIS_MODULE, | |
7618 | sizeof(struct tpacpi_alsa_data), &card); | |
74c75c18 | 7619 | if (rc < 0 || !card) { |
0978e012 | 7620 | pr_err("Failed to create ALSA card structures: %d\n", rc); |
74c75c18 HMH |
7621 | return 1; |
7622 | } | |
0d204c34 HMH |
7623 | |
7624 | BUG_ON(!card->private_data); | |
7625 | data = card->private_data; | |
7626 | data->card = card; | |
7627 | ||
7628 | strlcpy(card->driver, TPACPI_ALSA_DRVNAME, | |
7629 | sizeof(card->driver)); | |
7630 | strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, | |
7631 | sizeof(card->shortname)); | |
7632 | snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", | |
7633 | (thinkpad_id.ec_version_str) ? | |
7634 | thinkpad_id.ec_version_str : "(unknown)"); | |
7635 | snprintf(card->longname, sizeof(card->longname), | |
7636 | "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, | |
7637 | (thinkpad_id.ec_version_str) ? | |
7638 | thinkpad_id.ec_version_str : "unknown"); | |
7639 | ||
7640 | if (volume_control_allowed) { | |
7641 | volume_alsa_control_vol.put = volume_alsa_vol_put; | |
7642 | volume_alsa_control_vol.access = | |
7643 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7644 | ||
7645 | volume_alsa_control_mute.put = volume_alsa_mute_put; | |
7646 | volume_alsa_control_mute.access = | |
7647 | SNDRV_CTL_ELEM_ACCESS_READWRITE; | |
7648 | } | |
7649 | ||
7650 | if (!tp_features.mixer_no_level_control) { | |
7651 | ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); | |
7652 | rc = snd_ctl_add(card, ctl_vol); | |
7653 | if (rc < 0) { | |
0978e012 JP |
7654 | pr_err("Failed to create ALSA volume control: %d\n", |
7655 | rc); | |
74c75c18 | 7656 | goto err_exit; |
78f81cc4 | 7657 | } |
0d204c34 HMH |
7658 | data->ctl_vol_id = &ctl_vol->id; |
7659 | } | |
78f81cc4 | 7660 | |
0d204c34 HMH |
7661 | ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); |
7662 | rc = snd_ctl_add(card, ctl_mute); | |
7663 | if (rc < 0) { | |
0978e012 | 7664 | pr_err("Failed to create ALSA mute control: %d\n", rc); |
74c75c18 | 7665 | goto err_exit; |
0d204c34 HMH |
7666 | } |
7667 | data->ctl_mute_id = &ctl_mute->id; | |
35ff8b9f | 7668 | |
0d204c34 | 7669 | rc = snd_card_register(card); |
0d204c34 | 7670 | if (rc < 0) { |
0978e012 | 7671 | pr_err("Failed to register ALSA card: %d\n", rc); |
74c75c18 | 7672 | goto err_exit; |
0d204c34 HMH |
7673 | } |
7674 | ||
7675 | alsa_card = card; | |
74c75c18 HMH |
7676 | return 0; |
7677 | ||
7678 | err_exit: | |
7679 | snd_card_free(card); | |
7680 | return 1; | |
0d204c34 HMH |
7681 | } |
7682 | ||
a112ceee HMH |
7683 | #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ |
7684 | #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ | |
7685 | ||
7686 | static const struct tpacpi_quirk volume_quirk_table[] __initconst = { | |
7687 | /* Whitelist volume level on all IBM by default */ | |
7688 | { .vendor = PCI_VENDOR_ID_IBM, | |
7689 | .bios = TPACPI_MATCH_ANY, | |
7690 | .ec = TPACPI_MATCH_ANY, | |
7691 | .quirks = TPACPI_VOL_Q_LEVEL }, | |
7692 | ||
7693 | /* Lenovo models with volume control (needs confirmation) */ | |
7694 | TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ | |
7695 | TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ | |
7696 | TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ | |
7697 | TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ | |
7698 | TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ | |
7699 | TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ | |
7700 | TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ | |
7701 | ||
7702 | /* Whitelist mute-only on all Lenovo by default */ | |
7703 | { .vendor = PCI_VENDOR_ID_LENOVO, | |
7704 | .bios = TPACPI_MATCH_ANY, | |
7705 | .ec = TPACPI_MATCH_ANY, | |
7706 | .quirks = TPACPI_VOL_Q_MUTEONLY } | |
7707 | }; | |
7708 | ||
329e4e18 HMH |
7709 | static int __init volume_init(struct ibm_init_struct *iibm) |
7710 | { | |
a112ceee | 7711 | unsigned long quirks; |
0d204c34 | 7712 | int rc; |
a112ceee | 7713 | |
329e4e18 HMH |
7714 | vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); |
7715 | ||
7716 | mutex_init(&volume_mutex); | |
7717 | ||
7718 | /* | |
7719 | * Check for module parameter bogosity, note that we | |
7720 | * init volume_mode to TPACPI_VOL_MODE_MAX in order to be | |
7721 | * able to detect "unspecified" | |
7722 | */ | |
7723 | if (volume_mode > TPACPI_VOL_MODE_MAX) | |
7724 | return -EINVAL; | |
7725 | ||
7726 | if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { | |
5cac62ac AS |
7727 | pr_err("UCMS step volume mode not implemented, please contact %s\n", |
7728 | TPACPI_MAIL); | |
329e4e18 HMH |
7729 | return 1; |
7730 | } | |
7731 | ||
a112ceee HMH |
7732 | if (volume_capabilities >= TPACPI_VOL_CAP_MAX) |
7733 | return -EINVAL; | |
7734 | ||
0d204c34 HMH |
7735 | /* |
7736 | * The ALSA mixer is our primary interface. | |
7737 | * When disabled, don't install the subdriver at all | |
7738 | */ | |
7739 | if (!alsa_enable) { | |
7740 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
5cac62ac | 7741 | "ALSA mixer disabled by parameter, not loading volume subdriver...\n"); |
0d204c34 HMH |
7742 | return 1; |
7743 | } | |
7744 | ||
a112ceee HMH |
7745 | quirks = tpacpi_check_quirks(volume_quirk_table, |
7746 | ARRAY_SIZE(volume_quirk_table)); | |
7747 | ||
7748 | switch (volume_capabilities) { | |
7749 | case TPACPI_VOL_CAP_AUTO: | |
7750 | if (quirks & TPACPI_VOL_Q_MUTEONLY) | |
7751 | tp_features.mixer_no_level_control = 1; | |
7752 | else if (quirks & TPACPI_VOL_Q_LEVEL) | |
7753 | tp_features.mixer_no_level_control = 0; | |
7754 | else | |
7755 | return 1; /* no mixer */ | |
7756 | break; | |
7757 | case TPACPI_VOL_CAP_VOLMUTE: | |
7758 | tp_features.mixer_no_level_control = 0; | |
7759 | break; | |
7760 | case TPACPI_VOL_CAP_MUTEONLY: | |
7761 | tp_features.mixer_no_level_control = 1; | |
7762 | break; | |
7763 | default: | |
7764 | return 1; | |
7765 | } | |
7766 | ||
7767 | if (volume_capabilities != TPACPI_VOL_CAP_AUTO) | |
7768 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7769 | "using user-supplied volume_capabilities=%d\n", | |
7770 | volume_capabilities); | |
7771 | ||
329e4e18 HMH |
7772 | if (volume_mode == TPACPI_VOL_MODE_AUTO || |
7773 | volume_mode == TPACPI_VOL_MODE_MAX) { | |
7774 | volume_mode = TPACPI_VOL_MODE_ECNVRAM; | |
7775 | ||
7776 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7777 | "driver auto-selected volume_mode=%d\n", | |
7778 | volume_mode); | |
7779 | } else { | |
7780 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
7781 | "using user-supplied volume_mode=%d\n", | |
7782 | volume_mode); | |
7783 | } | |
7784 | ||
7785 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, | |
a112ceee HMH |
7786 | "mute is supported, volume control is %s\n", |
7787 | str_supported(!tp_features.mixer_no_level_control)); | |
329e4e18 | 7788 | |
9a417ec0 AL |
7789 | if (software_mute_requested && volume_set_software_mute(true) == 0) { |
7790 | software_mute_active = true; | |
7791 | } else { | |
7792 | rc = volume_create_alsa_mixer(); | |
7793 | if (rc) { | |
7794 | pr_err("Could not create the ALSA mixer interface\n"); | |
7795 | return rc; | |
7796 | } | |
0d204c34 | 7797 | |
9a417ec0 AL |
7798 | pr_info("Console audio control enabled, mode: %s\n", |
7799 | (volume_control_allowed) ? | |
7800 | "override (read/write)" : | |
7801 | "monitor (read only)"); | |
7802 | } | |
c7ac6291 | 7803 | |
0d204c34 HMH |
7804 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, |
7805 | "registering volume hotkeys as change notification\n"); | |
7806 | tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | |
7807 | | TP_ACPI_HKEY_VOLUP_MASK | |
7808 | | TP_ACPI_HKEY_VOLDWN_MASK | |
7809 | | TP_ACPI_HKEY_MUTE_MASK); | |
7810 | ||
329e4e18 HMH |
7811 | return 0; |
7812 | } | |
f74a27d4 | 7813 | |
887965e6 | 7814 | static int volume_read(struct seq_file *m) |
78f81cc4 | 7815 | { |
329e4e18 | 7816 | u8 status; |
78f81cc4 | 7817 | |
329e4e18 | 7818 | if (volume_get_status(&status) < 0) { |
887965e6 | 7819 | seq_printf(m, "level:\t\tunreadable\n"); |
78f81cc4 | 7820 | } else { |
a112ceee | 7821 | if (tp_features.mixer_no_level_control) |
887965e6 | 7822 | seq_printf(m, "level:\t\tunsupported\n"); |
a112ceee | 7823 | else |
887965e6 | 7824 | seq_printf(m, "level:\t\t%d\n", |
a112ceee HMH |
7825 | status & TP_EC_AUDIO_LVL_MSK); |
7826 | ||
887965e6 | 7827 | seq_printf(m, "mute:\t\t%s\n", |
329e4e18 | 7828 | onoff(status, TP_EC_AUDIO_MUTESW)); |
a112ceee | 7829 | |
c7ac6291 | 7830 | if (volume_control_allowed) { |
887965e6 | 7831 | seq_printf(m, "commands:\tunmute, mute\n"); |
c7ac6291 | 7832 | if (!tp_features.mixer_no_level_control) { |
5cac62ac AS |
7833 | seq_printf(m, "commands:\tup, down\n"); |
7834 | seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", | |
7835 | TP_EC_VOLUME_MAX); | |
c7ac6291 | 7836 | } |
78f81cc4 BD |
7837 | } |
7838 | } | |
7839 | ||
7840 | return 0; | |
7841 | } | |
7842 | ||
78f81cc4 BD |
7843 | static int volume_write(char *buf) |
7844 | { | |
329e4e18 HMH |
7845 | u8 s; |
7846 | u8 new_level, new_mute; | |
7847 | int l; | |
78f81cc4 | 7848 | char *cmd; |
329e4e18 | 7849 | int rc; |
78f81cc4 | 7850 | |
c7ac6291 HMH |
7851 | /* |
7852 | * We do allow volume control at driver startup, so that the | |
7853 | * user can set initial state through the volume=... parameter hack. | |
7854 | */ | |
7855 | if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { | |
7856 | if (unlikely(!tp_warned.volume_ctrl_forbidden)) { | |
7857 | tp_warned.volume_ctrl_forbidden = 1; | |
5cac62ac AS |
7858 | pr_notice("Console audio control in monitor mode, changes are not allowed\n"); |
7859 | pr_notice("Use the volume_control=1 module parameter to enable volume control\n"); | |
c7ac6291 HMH |
7860 | } |
7861 | return -EPERM; | |
7862 | } | |
7863 | ||
329e4e18 HMH |
7864 | rc = volume_get_status(&s); |
7865 | if (rc < 0) | |
7866 | return rc; | |
78f81cc4 | 7867 | |
329e4e18 HMH |
7868 | new_level = s & TP_EC_AUDIO_LVL_MSK; |
7869 | new_mute = s & TP_EC_AUDIO_MUTESW_MSK; | |
7870 | ||
7871 | while ((cmd = next_cmd(&buf))) { | |
a112ceee HMH |
7872 | if (!tp_features.mixer_no_level_control) { |
7873 | if (strlencmp(cmd, "up") == 0) { | |
7874 | if (new_mute) | |
7875 | new_mute = 0; | |
7876 | else if (new_level < TP_EC_VOLUME_MAX) | |
7877 | new_level++; | |
7878 | continue; | |
7879 | } else if (strlencmp(cmd, "down") == 0) { | |
7880 | if (new_mute) | |
7881 | new_mute = 0; | |
7882 | else if (new_level > 0) | |
7883 | new_level--; | |
7884 | continue; | |
7885 | } else if (sscanf(cmd, "level %u", &l) == 1 && | |
7886 | l >= 0 && l <= TP_EC_VOLUME_MAX) { | |
7887 | new_level = l; | |
7888 | continue; | |
7889 | } | |
7890 | } | |
7891 | if (strlencmp(cmd, "mute") == 0) | |
329e4e18 | 7892 | new_mute = TP_EC_AUDIO_MUTESW_MSK; |
a112ceee HMH |
7893 | else if (strlencmp(cmd, "unmute") == 0) |
7894 | new_mute = 0; | |
7895 | else | |
1da177e4 | 7896 | return -EINVAL; |
329e4e18 | 7897 | } |
1da177e4 | 7898 | |
a112ceee HMH |
7899 | if (tp_features.mixer_no_level_control) { |
7900 | tpacpi_disclose_usertask("procfs volume", "%smute\n", | |
7901 | new_mute ? "" : "un"); | |
7902 | rc = volume_set_mute(!!new_mute); | |
7903 | } else { | |
7904 | tpacpi_disclose_usertask("procfs volume", | |
7905 | "%smute and set level to %d\n", | |
7906 | new_mute ? "" : "un", new_level); | |
7907 | rc = volume_set_status(new_mute | new_level); | |
7908 | } | |
0d204c34 | 7909 | volume_alsa_notify_change(); |
78f81cc4 | 7910 | |
329e4e18 | 7911 | return (rc == -EINTR) ? -ERESTARTSYS : rc; |
78f81cc4 BD |
7912 | } |
7913 | ||
a5763f22 HMH |
7914 | static struct ibm_struct volume_driver_data = { |
7915 | .name = "volume", | |
7916 | .read = volume_read, | |
7917 | .write = volume_write, | |
329e4e18 HMH |
7918 | .exit = volume_exit, |
7919 | .suspend = volume_suspend, | |
0d204c34 | 7920 | .resume = volume_resume, |
329e4e18 | 7921 | .shutdown = volume_shutdown, |
a5763f22 | 7922 | }; |
56b6aeb0 | 7923 | |
ff850c33 HMH |
7924 | #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
7925 | ||
7926 | #define alsa_card NULL | |
7927 | ||
bb55a2ee | 7928 | static inline void volume_alsa_notify_change(void) |
ff850c33 HMH |
7929 | { |
7930 | } | |
7931 | ||
7932 | static int __init volume_init(struct ibm_init_struct *iibm) | |
7933 | { | |
0978e012 | 7934 | pr_info("volume: disabled as there is no ALSA support in this kernel\n"); |
ff850c33 HMH |
7935 | |
7936 | return 1; | |
7937 | } | |
7938 | ||
7939 | static struct ibm_struct volume_driver_data = { | |
7940 | .name = "volume", | |
7941 | }; | |
7942 | ||
7943 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ | |
7944 | ||
56b6aeb0 HMH |
7945 | /************************************************************************* |
7946 | * Fan subdriver | |
7947 | */ | |
7948 | ||
7949 | /* | |
7950 | * FAN ACCESS MODES | |
7951 | * | |
efa27145 | 7952 | * TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 HMH |
7953 | * ACPI GFAN method: returns fan level |
7954 | * | |
efa27145 | 7955 | * see TPACPI_FAN_WR_ACPI_SFAN |
f51d1a39 | 7956 | * EC 0x2f (HFSP) not available if GFAN exists |
56b6aeb0 | 7957 | * |
efa27145 | 7958 | * TPACPI_FAN_WR_ACPI_SFAN: |
56b6aeb0 HMH |
7959 | * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) |
7960 | * | |
f51d1a39 HMH |
7961 | * EC 0x2f (HFSP) might be available *for reading*, but do not use |
7962 | * it for writing. | |
56b6aeb0 | 7963 | * |
efa27145 | 7964 | * TPACPI_FAN_WR_TPEC: |
f51d1a39 HMH |
7965 | * ThinkPad EC register 0x2f (HFSP): fan control loop mode |
7966 | * Supported on almost all ThinkPads | |
56b6aeb0 HMH |
7967 | * |
7968 | * Fan speed changes of any sort (including those caused by the | |
7969 | * disengaged mode) are usually done slowly by the firmware as the | |
9ddc5b6f | 7970 | * maximum amount of fan duty cycle change per second seems to be |
56b6aeb0 HMH |
7971 | * limited. |
7972 | * | |
7973 | * Reading is not available if GFAN exists. | |
7974 | * Writing is not available if SFAN exists. | |
7975 | * | |
7976 | * Bits | |
7977 | * 7 automatic mode engaged; | |
7978 | * (default operation mode of the ThinkPad) | |
7979 | * fan level is ignored in this mode. | |
f51d1a39 | 7980 | * 6 full speed mode (takes precedence over bit 7); |
56b6aeb0 | 7981 | * not available on all thinkpads. May disable |
f51d1a39 HMH |
7982 | * the tachometer while the fan controller ramps up |
7983 | * the speed (which can take up to a few *minutes*). | |
7984 | * Speeds up fan to 100% duty-cycle, which is far above | |
7985 | * the standard RPM levels. It is not impossible that | |
7986 | * it could cause hardware damage. | |
56b6aeb0 HMH |
7987 | * 5-3 unused in some models. Extra bits for fan level |
7988 | * in others, but still useless as all values above | |
7989 | * 7 map to the same speed as level 7 in these models. | |
7990 | * 2-0 fan level (0..7 usually) | |
7991 | * 0x00 = stop | |
7992 | * 0x07 = max (set when temperatures critical) | |
7993 | * Some ThinkPads may have other levels, see | |
efa27145 | 7994 | * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) |
56b6aeb0 HMH |
7995 | * |
7996 | * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at | |
b595076a | 7997 | * boot. Apparently the EC does not initialize it, so unless ACPI DSDT |
56b6aeb0 HMH |
7998 | * does so, its initial value is meaningless (0x07). |
7999 | * | |
8000 | * For firmware bugs, refer to: | |
8001 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
8002 | * | |
8003 | * ---- | |
8004 | * | |
8005 | * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): | |
8006 | * Main fan tachometer reading (in RPM) | |
8007 | * | |
8008 | * This register is present on all ThinkPads with a new-style EC, and | |
8009 | * it is known not to be present on the A21m/e, and T22, as there is | |
8010 | * something else in offset 0x84 according to the ACPI DSDT. Other | |
8011 | * ThinkPads from this same time period (and earlier) probably lack the | |
8012 | * tachometer as well. | |
8013 | * | |
877d0310 | 8014 | * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware |
56b6aeb0 HMH |
8015 | * was never fixed by IBM to report the EC firmware version string |
8016 | * probably support the tachometer (like the early X models), so | |
8017 | * detecting it is quite hard. We need more data to know for sure. | |
8018 | * | |
8019 | * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings | |
8020 | * might result. | |
8021 | * | |
f51d1a39 HMH |
8022 | * FIRMWARE BUG: may go stale while the EC is switching to full speed |
8023 | * mode. | |
56b6aeb0 HMH |
8024 | * |
8025 | * For firmware bugs, refer to: | |
8026 | * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues | |
8027 | * | |
d7377247 HMH |
8028 | * ---- |
8029 | * | |
8030 | * ThinkPad EC register 0x31 bit 0 (only on select models) | |
8031 | * | |
8032 | * When bit 0 of EC register 0x31 is zero, the tachometer registers | |
8033 | * show the speed of the main fan. When bit 0 of EC register 0x31 | |
8034 | * is one, the tachometer registers show the speed of the auxiliary | |
8035 | * fan. | |
8036 | * | |
8037 | * Fan control seems to affect both fans, regardless of the state | |
8038 | * of this bit. | |
8039 | * | |
8040 | * So far, only the firmware for the X60/X61 non-tablet versions | |
8041 | * seem to support this (firmware TP-7M). | |
8042 | * | |
efa27145 | 8043 | * TPACPI_FAN_WR_ACPI_FANS: |
56b6aeb0 HMH |
8044 | * ThinkPad X31, X40, X41. Not available in the X60. |
8045 | * | |
8046 | * FANS ACPI handle: takes three arguments: low speed, medium speed, | |
8047 | * high speed. ACPI DSDT seems to map these three speeds to levels | |
8048 | * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH | |
8049 | * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") | |
8050 | * | |
8051 | * The speeds are stored on handles | |
8052 | * (FANA:FAN9), (FANC:FANB), (FANE:FAND). | |
8053 | * | |
af901ca1 | 8054 | * There are three default speed sets, accessible as handles: |
56b6aeb0 HMH |
8055 | * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H |
8056 | * | |
8057 | * ACPI DSDT switches which set is in use depending on various | |
8058 | * factors. | |
8059 | * | |
efa27145 | 8060 | * TPACPI_FAN_WR_TPEC is also available and should be used to |
56b6aeb0 HMH |
8061 | * command the fan. The X31/X40/X41 seems to have 8 fan levels, |
8062 | * but the ACPI tables just mention level 7. | |
8063 | */ | |
8064 | ||
f74a27d4 HMH |
8065 | enum { /* Fan control constants */ |
8066 | fan_status_offset = 0x2f, /* EC register 0x2f */ | |
8067 | fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) | |
8068 | * 0x84 must be read before 0x85 */ | |
d7377247 HMH |
8069 | fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) |
8070 | bit 0 selects which fan is active */ | |
f74a27d4 HMH |
8071 | |
8072 | TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ | |
8073 | TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ | |
8074 | ||
8075 | TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ | |
8076 | }; | |
8077 | ||
8078 | enum fan_status_access_mode { | |
8079 | TPACPI_FAN_NONE = 0, /* No fan status or control */ | |
8080 | TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ | |
8081 | TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ | |
8082 | }; | |
8083 | ||
8084 | enum fan_control_access_mode { | |
8085 | TPACPI_FAN_WR_NONE = 0, /* No fan control */ | |
8086 | TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ | |
8087 | TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ | |
8088 | TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ | |
8089 | }; | |
8090 | ||
8091 | enum fan_control_commands { | |
8092 | TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ | |
8093 | TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ | |
8094 | TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, | |
8095 | * and also watchdog cmd */ | |
8096 | }; | |
8097 | ||
90ab5ee9 | 8098 | static bool fan_control_allowed; |
f74a27d4 | 8099 | |
69ba91cb HMH |
8100 | static enum fan_status_access_mode fan_status_access_mode; |
8101 | static enum fan_control_access_mode fan_control_access_mode; | |
8102 | static enum fan_control_commands fan_control_commands; | |
78f81cc4 | 8103 | |
778b4d74 | 8104 | static u8 fan_control_initial_status; |
fe98a52c | 8105 | static u8 fan_control_desired_level; |
0081b162 | 8106 | static u8 fan_control_resume_level; |
f74a27d4 HMH |
8107 | static int fan_watchdog_maxinterval; |
8108 | ||
8109 | static struct mutex fan_mutex; | |
778b4d74 | 8110 | |
25c68a33 | 8111 | static void fan_watchdog_fire(struct work_struct *ignored); |
25c68a33 | 8112 | static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); |
16663a87 | 8113 | |
e0c7dfe7 HMH |
8114 | TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ |
8115 | TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ | |
56b6aeb0 HMH |
8116 | "\\FSPD", /* 600e/x, 770e, 770x */ |
8117 | ); /* all others */ | |
e0c7dfe7 | 8118 | TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ |
56b6aeb0 HMH |
8119 | "JFNS", /* 770x-JL */ |
8120 | ); /* all others */ | |
8121 | ||
1c2ece75 HMH |
8122 | /* |
8123 | * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the | |
8124 | * HFSP register at boot, so it contains 0x07 but the Thinkpad could | |
8125 | * be in auto mode (0x80). | |
8126 | * | |
8127 | * This is corrected by any write to HFSP either by the driver, or | |
8128 | * by the firmware. | |
8129 | * | |
8130 | * We assume 0x07 really means auto mode while this quirk is active, | |
8131 | * as this is far more likely than the ThinkPad being in level 7, | |
8132 | * which is only used by the firmware during thermal emergencies. | |
7d95a3d5 HMH |
8133 | * |
8134 | * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), | |
8135 | * TP-70 (T43, R52), which are known to be buggy. | |
1c2ece75 HMH |
8136 | */ |
8137 | ||
7d95a3d5 | 8138 | static void fan_quirk1_setup(void) |
1c2ece75 | 8139 | { |
1c2ece75 | 8140 | if (fan_control_initial_status == 0x07) { |
5cac62ac | 8141 | pr_notice("fan_init: initial fan status is unknown, assuming it is in auto mode\n"); |
7d95a3d5 | 8142 | tp_features.fan_ctrl_status_undef = 1; |
1c2ece75 HMH |
8143 | } |
8144 | } | |
8145 | ||
8146 | static void fan_quirk1_handle(u8 *fan_status) | |
8147 | { | |
8148 | if (unlikely(tp_features.fan_ctrl_status_undef)) { | |
8149 | if (*fan_status != fan_control_initial_status) { | |
8150 | /* something changed the HFSP regisnter since | |
8151 | * driver init time, so it is not undefined | |
8152 | * anymore */ | |
8153 | tp_features.fan_ctrl_status_undef = 0; | |
8154 | } else { | |
8155 | /* Return most likely status. In fact, it | |
8156 | * might be the only possible status */ | |
8157 | *fan_status = TP_EC_FAN_AUTO; | |
8158 | } | |
8159 | } | |
8160 | } | |
8161 | ||
d7377247 HMH |
8162 | /* Select main fan on X60/X61, NOOP on others */ |
8163 | static bool fan_select_fan1(void) | |
8164 | { | |
8165 | if (tp_features.second_fan) { | |
8166 | u8 val; | |
8167 | ||
8168 | if (ec_read(fan_select_offset, &val) < 0) | |
8169 | return false; | |
8170 | val &= 0xFEU; | |
8171 | if (ec_write(fan_select_offset, val) < 0) | |
8172 | return false; | |
8173 | } | |
8174 | return true; | |
8175 | } | |
8176 | ||
8177 | /* Select secondary fan on X60/X61 */ | |
8178 | static bool fan_select_fan2(void) | |
8179 | { | |
8180 | u8 val; | |
8181 | ||
8182 | if (!tp_features.second_fan) | |
8183 | return false; | |
8184 | ||
8185 | if (ec_read(fan_select_offset, &val) < 0) | |
8186 | return false; | |
8187 | val |= 0x01U; | |
8188 | if (ec_write(fan_select_offset, val) < 0) | |
8189 | return false; | |
8190 | ||
8191 | return true; | |
8192 | } | |
8193 | ||
fe98a52c | 8194 | /* |
b21a15f6 | 8195 | * Call with fan_mutex held |
fe98a52c | 8196 | */ |
b21a15f6 | 8197 | static void fan_update_desired_level(u8 status) |
fe98a52c | 8198 | { |
b21a15f6 HMH |
8199 | if ((status & |
8200 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8201 | if (status > 7) | |
8202 | fan_control_desired_level = 7; | |
8203 | else | |
8204 | fan_control_desired_level = status; | |
8205 | } | |
8206 | } | |
fe98a52c | 8207 | |
b21a15f6 HMH |
8208 | static int fan_get_status(u8 *status) |
8209 | { | |
8210 | u8 s; | |
fe98a52c | 8211 | |
b21a15f6 HMH |
8212 | /* TODO: |
8213 | * Add TPACPI_FAN_RD_ACPI_FANS ? */ | |
fe98a52c | 8214 | |
b21a15f6 | 8215 | switch (fan_status_access_mode) { |
eceeb437 | 8216 | case TPACPI_FAN_RD_ACPI_GFAN: { |
b21a15f6 | 8217 | /* 570, 600e/x, 770e, 770x */ |
eceeb437 | 8218 | int res; |
fe98a52c | 8219 | |
eceeb437 | 8220 | if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d"))) |
b21a15f6 | 8221 | return -EIO; |
fe98a52c | 8222 | |
b21a15f6 | 8223 | if (likely(status)) |
eceeb437 | 8224 | *status = res & 0x07; |
fe98a52c | 8225 | |
b21a15f6 | 8226 | break; |
eceeb437 | 8227 | } |
b21a15f6 HMH |
8228 | case TPACPI_FAN_RD_TPEC: |
8229 | /* all except 570, 600e/x, 770e, 770x */ | |
8230 | if (unlikely(!acpi_ec_read(fan_status_offset, &s))) | |
8231 | return -EIO; | |
8232 | ||
1c2ece75 | 8233 | if (likely(status)) { |
b21a15f6 | 8234 | *status = s; |
1c2ece75 HMH |
8235 | fan_quirk1_handle(status); |
8236 | } | |
fe98a52c | 8237 | |
fe98a52c | 8238 | break; |
b21a15f6 | 8239 | |
fe98a52c | 8240 | default: |
b21a15f6 | 8241 | return -ENXIO; |
fe98a52c HMH |
8242 | } |
8243 | ||
b21a15f6 HMH |
8244 | return 0; |
8245 | } | |
fe98a52c | 8246 | |
b21a15f6 HMH |
8247 | static int fan_get_status_safe(u8 *status) |
8248 | { | |
8249 | int rc; | |
8250 | u8 s; | |
fe98a52c | 8251 | |
7646ea88 | 8252 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 HMH |
8253 | return -ERESTARTSYS; |
8254 | rc = fan_get_status(&s); | |
8255 | if (!rc) | |
8256 | fan_update_desired_level(s); | |
8257 | mutex_unlock(&fan_mutex); | |
fe98a52c | 8258 | |
a7718360 DC |
8259 | if (rc) |
8260 | return rc; | |
b21a15f6 HMH |
8261 | if (status) |
8262 | *status = s; | |
fe98a52c | 8263 | |
a7718360 | 8264 | return 0; |
b21a15f6 HMH |
8265 | } |
8266 | ||
8267 | static int fan_get_speed(unsigned int *speed) | |
fe98a52c | 8268 | { |
b21a15f6 | 8269 | u8 hi, lo; |
fe98a52c | 8270 | |
b21a15f6 HMH |
8271 | switch (fan_status_access_mode) { |
8272 | case TPACPI_FAN_RD_TPEC: | |
8273 | /* all except 570, 600e/x, 770e, 770x */ | |
d7377247 HMH |
8274 | if (unlikely(!fan_select_fan1())) |
8275 | return -EIO; | |
b21a15f6 HMH |
8276 | if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || |
8277 | !acpi_ec_read(fan_rpm_offset + 1, &hi))) | |
8278 | return -EIO; | |
fe98a52c | 8279 | |
b21a15f6 HMH |
8280 | if (likely(speed)) |
8281 | *speed = (hi << 8) | lo; | |
fe98a52c | 8282 | |
b21a15f6 | 8283 | break; |
fe98a52c | 8284 | |
b21a15f6 HMH |
8285 | default: |
8286 | return -ENXIO; | |
8287 | } | |
fe98a52c | 8288 | |
b21a15f6 | 8289 | return 0; |
fe98a52c HMH |
8290 | } |
8291 | ||
d7377247 HMH |
8292 | static int fan2_get_speed(unsigned int *speed) |
8293 | { | |
8294 | u8 hi, lo; | |
8295 | bool rc; | |
8296 | ||
8297 | switch (fan_status_access_mode) { | |
8298 | case TPACPI_FAN_RD_TPEC: | |
8299 | /* all except 570, 600e/x, 770e, 770x */ | |
8300 | if (unlikely(!fan_select_fan2())) | |
8301 | return -EIO; | |
8302 | rc = !acpi_ec_read(fan_rpm_offset, &lo) || | |
8303 | !acpi_ec_read(fan_rpm_offset + 1, &hi); | |
8304 | fan_select_fan1(); /* play it safe */ | |
8305 | if (rc) | |
8306 | return -EIO; | |
8307 | ||
8308 | if (likely(speed)) | |
8309 | *speed = (hi << 8) | lo; | |
8310 | ||
8311 | break; | |
8312 | ||
8313 | default: | |
8314 | return -ENXIO; | |
8315 | } | |
8316 | ||
8317 | return 0; | |
8318 | } | |
8319 | ||
b21a15f6 | 8320 | static int fan_set_level(int level) |
fe98a52c | 8321 | { |
b21a15f6 HMH |
8322 | if (!fan_control_allowed) |
8323 | return -EPERM; | |
fe98a52c | 8324 | |
b21a15f6 HMH |
8325 | switch (fan_control_access_mode) { |
8326 | case TPACPI_FAN_WR_ACPI_SFAN: | |
8327 | if (level >= 0 && level <= 7) { | |
8328 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) | |
8329 | return -EIO; | |
8330 | } else | |
8331 | return -EINVAL; | |
8332 | break; | |
fe98a52c | 8333 | |
b21a15f6 HMH |
8334 | case TPACPI_FAN_WR_ACPI_FANS: |
8335 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8336 | if (!(level & TP_EC_FAN_AUTO) && |
8337 | !(level & TP_EC_FAN_FULLSPEED) && | |
b21a15f6 HMH |
8338 | ((level < 0) || (level > 7))) |
8339 | return -EINVAL; | |
fe98a52c | 8340 | |
b21a15f6 HMH |
8341 | /* safety net should the EC not support AUTO |
8342 | * or FULLSPEED mode bits and just ignore them */ | |
8343 | if (level & TP_EC_FAN_FULLSPEED) | |
8344 | level |= 7; /* safety min speed 7 */ | |
547266e4 | 8345 | else if (level & TP_EC_FAN_AUTO) |
b21a15f6 | 8346 | level |= 4; /* safety min speed 4 */ |
fe98a52c | 8347 | |
b21a15f6 HMH |
8348 | if (!acpi_ec_write(fan_status_offset, level)) |
8349 | return -EIO; | |
8350 | else | |
8351 | tp_features.fan_ctrl_status_undef = 0; | |
8352 | break; | |
fe98a52c | 8353 | |
b21a15f6 HMH |
8354 | default: |
8355 | return -ENXIO; | |
8356 | } | |
74a60c0f HMH |
8357 | |
8358 | vdbg_printk(TPACPI_DBG_FAN, | |
8359 | "fan control: set fan control register to 0x%02x\n", level); | |
b21a15f6 | 8360 | return 0; |
fe98a52c HMH |
8361 | } |
8362 | ||
b21a15f6 | 8363 | static int fan_set_level_safe(int level) |
fe98a52c | 8364 | { |
b21a15f6 | 8365 | int rc; |
fe98a52c | 8366 | |
b21a15f6 HMH |
8367 | if (!fan_control_allowed) |
8368 | return -EPERM; | |
fe98a52c | 8369 | |
7646ea88 | 8370 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8371 | return -ERESTARTSYS; |
fe98a52c | 8372 | |
b21a15f6 HMH |
8373 | if (level == TPACPI_FAN_LAST_LEVEL) |
8374 | level = fan_control_desired_level; | |
fe98a52c | 8375 | |
b21a15f6 HMH |
8376 | rc = fan_set_level(level); |
8377 | if (!rc) | |
8378 | fan_update_desired_level(level); | |
8379 | ||
8380 | mutex_unlock(&fan_mutex); | |
8381 | return rc; | |
fe98a52c HMH |
8382 | } |
8383 | ||
b21a15f6 | 8384 | static int fan_set_enable(void) |
fe98a52c | 8385 | { |
b21a15f6 HMH |
8386 | u8 s; |
8387 | int rc; | |
fe98a52c | 8388 | |
ecf2a80a HMH |
8389 | if (!fan_control_allowed) |
8390 | return -EPERM; | |
8391 | ||
7646ea88 | 8392 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8393 | return -ERESTARTSYS; |
fe98a52c | 8394 | |
b21a15f6 HMH |
8395 | switch (fan_control_access_mode) { |
8396 | case TPACPI_FAN_WR_ACPI_FANS: | |
8397 | case TPACPI_FAN_WR_TPEC: | |
8398 | rc = fan_get_status(&s); | |
8399 | if (rc < 0) | |
8400 | break; | |
fe98a52c | 8401 | |
b21a15f6 HMH |
8402 | /* Don't go out of emergency fan mode */ |
8403 | if (s != 7) { | |
8404 | s &= 0x07; | |
8405 | s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ | |
8406 | } | |
fe98a52c | 8407 | |
b21a15f6 HMH |
8408 | if (!acpi_ec_write(fan_status_offset, s)) |
8409 | rc = -EIO; | |
8410 | else { | |
8411 | tp_features.fan_ctrl_status_undef = 0; | |
8412 | rc = 0; | |
8413 | } | |
8414 | break; | |
fe98a52c | 8415 | |
b21a15f6 HMH |
8416 | case TPACPI_FAN_WR_ACPI_SFAN: |
8417 | rc = fan_get_status(&s); | |
8418 | if (rc < 0) | |
8419 | break; | |
fe98a52c | 8420 | |
b21a15f6 | 8421 | s &= 0x07; |
fe98a52c | 8422 | |
b21a15f6 HMH |
8423 | /* Set fan to at least level 4 */ |
8424 | s |= 4; | |
fe08bc4b | 8425 | |
b21a15f6 | 8426 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) |
35ff8b9f | 8427 | rc = -EIO; |
b21a15f6 HMH |
8428 | else |
8429 | rc = 0; | |
8430 | break; | |
78f81cc4 | 8431 | |
b21a15f6 HMH |
8432 | default: |
8433 | rc = -ENXIO; | |
8434 | } | |
5fba344c | 8435 | |
b21a15f6 | 8436 | mutex_unlock(&fan_mutex); |
74a60c0f HMH |
8437 | |
8438 | if (!rc) | |
8439 | vdbg_printk(TPACPI_DBG_FAN, | |
8440 | "fan control: set fan control register to 0x%02x\n", | |
8441 | s); | |
b21a15f6 | 8442 | return rc; |
69ba91cb | 8443 | } |
78f81cc4 | 8444 | |
b21a15f6 | 8445 | static int fan_set_disable(void) |
78f81cc4 | 8446 | { |
b21a15f6 | 8447 | int rc; |
c52f0aa5 | 8448 | |
b21a15f6 HMH |
8449 | if (!fan_control_allowed) |
8450 | return -EPERM; | |
78f81cc4 | 8451 | |
7646ea88 | 8452 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8453 | return -ERESTARTSYS; |
3ef8a609 | 8454 | |
b21a15f6 HMH |
8455 | rc = 0; |
8456 | switch (fan_control_access_mode) { | |
8457 | case TPACPI_FAN_WR_ACPI_FANS: | |
8458 | case TPACPI_FAN_WR_TPEC: | |
8459 | if (!acpi_ec_write(fan_status_offset, 0x00)) | |
8460 | rc = -EIO; | |
8461 | else { | |
8462 | fan_control_desired_level = 0; | |
8463 | tp_features.fan_ctrl_status_undef = 0; | |
8464 | } | |
3ef8a609 HMH |
8465 | break; |
8466 | ||
b21a15f6 HMH |
8467 | case TPACPI_FAN_WR_ACPI_SFAN: |
8468 | if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) | |
8469 | rc = -EIO; | |
8470 | else | |
8471 | fan_control_desired_level = 0; | |
c52f0aa5 HMH |
8472 | break; |
8473 | ||
8474 | default: | |
b21a15f6 | 8475 | rc = -ENXIO; |
78f81cc4 BD |
8476 | } |
8477 | ||
74a60c0f HMH |
8478 | if (!rc) |
8479 | vdbg_printk(TPACPI_DBG_FAN, | |
8480 | "fan control: set fan control register to 0\n"); | |
fe98a52c | 8481 | |
fe98a52c | 8482 | mutex_unlock(&fan_mutex); |
fe98a52c HMH |
8483 | return rc; |
8484 | } | |
8485 | ||
b21a15f6 | 8486 | static int fan_set_speed(int speed) |
c52f0aa5 | 8487 | { |
b21a15f6 | 8488 | int rc; |
c52f0aa5 | 8489 | |
b21a15f6 HMH |
8490 | if (!fan_control_allowed) |
8491 | return -EPERM; | |
3ef8a609 | 8492 | |
7646ea88 | 8493 | if (mutex_lock_killable(&fan_mutex)) |
b21a15f6 | 8494 | return -ERESTARTSYS; |
c52f0aa5 | 8495 | |
b21a15f6 HMH |
8496 | rc = 0; |
8497 | switch (fan_control_access_mode) { | |
8498 | case TPACPI_FAN_WR_ACPI_FANS: | |
8499 | if (speed >= 0 && speed <= 65535) { | |
8500 | if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", | |
8501 | speed, speed, speed)) | |
8502 | rc = -EIO; | |
8503 | } else | |
8504 | rc = -EINVAL; | |
c52f0aa5 HMH |
8505 | break; |
8506 | ||
8507 | default: | |
b21a15f6 | 8508 | rc = -ENXIO; |
c52f0aa5 HMH |
8509 | } |
8510 | ||
b21a15f6 HMH |
8511 | mutex_unlock(&fan_mutex); |
8512 | return rc; | |
16663a87 HMH |
8513 | } |
8514 | ||
8515 | static void fan_watchdog_reset(void) | |
8516 | { | |
4985cd0a HMH |
8517 | if (fan_control_access_mode == TPACPI_FAN_WR_NONE) |
8518 | return; | |
8519 | ||
8fef502e | 8520 | if (fan_watchdog_maxinterval > 0 && |
41f63c53 TH |
8521 | tpacpi_lifecycle != TPACPI_LIFE_EXITING) |
8522 | mod_delayed_work(tpacpi_wq, &fan_watchdog_task, | |
8523 | msecs_to_jiffies(fan_watchdog_maxinterval * 1000)); | |
8524 | else | |
8525 | cancel_delayed_work(&fan_watchdog_task); | |
16663a87 HMH |
8526 | } |
8527 | ||
b21a15f6 | 8528 | static void fan_watchdog_fire(struct work_struct *ignored) |
78f81cc4 | 8529 | { |
b21a15f6 | 8530 | int rc; |
18ad7996 | 8531 | |
b21a15f6 HMH |
8532 | if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) |
8533 | return; | |
a12095c2 | 8534 | |
0978e012 | 8535 | pr_notice("fan watchdog: enabling fan\n"); |
b21a15f6 HMH |
8536 | rc = fan_set_enable(); |
8537 | if (rc < 0) { | |
5cac62ac AS |
8538 | pr_err("fan watchdog: error %d while enabling fan, will try again later...\n", |
8539 | rc); | |
b21a15f6 HMH |
8540 | /* reschedule for later */ |
8541 | fan_watchdog_reset(); | |
8542 | } | |
8543 | } | |
eaa7571b | 8544 | |
b21a15f6 HMH |
8545 | /* |
8546 | * SYSFS fan layout: hwmon compatible (device) | |
8547 | * | |
8548 | * pwm*_enable: | |
8549 | * 0: "disengaged" mode | |
8550 | * 1: manual mode | |
8551 | * 2: native EC "auto" mode (recommended, hardware default) | |
8552 | * | |
8553 | * pwm*: set speed in manual mode, ignored otherwise. | |
8554 | * 0 is level 0; 255 is level 7. Intermediate points done with linear | |
8555 | * interpolation. | |
8556 | * | |
8557 | * fan*_input: tachometer reading, RPM | |
8558 | * | |
8559 | * | |
8560 | * SYSFS fan layout: extensions | |
8561 | * | |
8562 | * fan_watchdog (driver): | |
8563 | * fan watchdog interval in seconds, 0 disables (default), max 120 | |
8564 | */ | |
8565 | ||
8566 | /* sysfs fan pwm1_enable ----------------------------------------------- */ | |
8567 | static ssize_t fan_pwm1_enable_show(struct device *dev, | |
8568 | struct device_attribute *attr, | |
8569 | char *buf) | |
8570 | { | |
8571 | int res, mode; | |
8572 | u8 status; | |
8573 | ||
8574 | res = fan_get_status_safe(&status); | |
8575 | if (res) | |
8576 | return res; | |
8577 | ||
b21a15f6 HMH |
8578 | if (status & TP_EC_FAN_FULLSPEED) { |
8579 | mode = 0; | |
8580 | } else if (status & TP_EC_FAN_AUTO) { | |
8581 | mode = 2; | |
8582 | } else | |
8583 | mode = 1; | |
8584 | ||
8585 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
8586 | } | |
a12095c2 | 8587 | |
b21a15f6 HMH |
8588 | static ssize_t fan_pwm1_enable_store(struct device *dev, |
8589 | struct device_attribute *attr, | |
8590 | const char *buf, size_t count) | |
8591 | { | |
8592 | unsigned long t; | |
8593 | int res, level; | |
8594 | ||
8595 | if (parse_strtoul(buf, 2, &t)) | |
8596 | return -EINVAL; | |
8597 | ||
74a60c0f HMH |
8598 | tpacpi_disclose_usertask("hwmon pwm1_enable", |
8599 | "set fan mode to %lu\n", t); | |
8600 | ||
b21a15f6 HMH |
8601 | switch (t) { |
8602 | case 0: | |
8603 | level = TP_EC_FAN_FULLSPEED; | |
8604 | break; | |
8605 | case 1: | |
8606 | level = TPACPI_FAN_LAST_LEVEL; | |
8607 | break; | |
8608 | case 2: | |
8609 | level = TP_EC_FAN_AUTO; | |
8610 | break; | |
8611 | case 3: | |
8612 | /* reserved for software-controlled auto mode */ | |
8613 | return -ENOSYS; | |
18ad7996 | 8614 | default: |
b21a15f6 | 8615 | return -EINVAL; |
18ad7996 | 8616 | } |
b21a15f6 HMH |
8617 | |
8618 | res = fan_set_level_safe(level); | |
8619 | if (res == -ENXIO) | |
8620 | return -EINVAL; | |
8621 | else if (res < 0) | |
8622 | return res; | |
8623 | ||
8624 | fan_watchdog_reset(); | |
8625 | ||
8626 | return count; | |
18ad7996 HMH |
8627 | } |
8628 | ||
5fb73bc2 BM |
8629 | static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, |
8630 | fan_pwm1_enable_show, fan_pwm1_enable_store); | |
b21a15f6 HMH |
8631 | |
8632 | /* sysfs fan pwm1 ------------------------------------------------------ */ | |
8633 | static ssize_t fan_pwm1_show(struct device *dev, | |
8634 | struct device_attribute *attr, | |
8635 | char *buf) | |
fe98a52c | 8636 | { |
b21a15f6 HMH |
8637 | int res; |
8638 | u8 status; | |
fe98a52c | 8639 | |
b21a15f6 HMH |
8640 | res = fan_get_status_safe(&status); |
8641 | if (res) | |
8642 | return res; | |
ecf2a80a | 8643 | |
b21a15f6 HMH |
8644 | if ((status & |
8645 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) | |
8646 | status = fan_control_desired_level; | |
fe98a52c | 8647 | |
b21a15f6 HMH |
8648 | if (status > 7) |
8649 | status = 7; | |
fe98a52c | 8650 | |
b21a15f6 | 8651 | return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); |
fe98a52c HMH |
8652 | } |
8653 | ||
b21a15f6 HMH |
8654 | static ssize_t fan_pwm1_store(struct device *dev, |
8655 | struct device_attribute *attr, | |
8656 | const char *buf, size_t count) | |
18ad7996 | 8657 | { |
b21a15f6 | 8658 | unsigned long s; |
1c6a334e | 8659 | int rc; |
b21a15f6 | 8660 | u8 status, newlevel; |
1c6a334e | 8661 | |
b21a15f6 HMH |
8662 | if (parse_strtoul(buf, 255, &s)) |
8663 | return -EINVAL; | |
8664 | ||
74a60c0f HMH |
8665 | tpacpi_disclose_usertask("hwmon pwm1", |
8666 | "set fan speed to %lu\n", s); | |
8667 | ||
b21a15f6 HMH |
8668 | /* scale down from 0-255 to 0-7 */ |
8669 | newlevel = (s >> 5) & 0x07; | |
ecf2a80a | 8670 | |
7646ea88 | 8671 | if (mutex_lock_killable(&fan_mutex)) |
fc589a3c | 8672 | return -ERESTARTSYS; |
40ca9fdf | 8673 | |
b21a15f6 HMH |
8674 | rc = fan_get_status(&status); |
8675 | if (!rc && (status & | |
8676 | (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { | |
8677 | rc = fan_set_level(newlevel); | |
8678 | if (rc == -ENXIO) | |
8679 | rc = -EINVAL; | |
8680 | else if (!rc) { | |
8681 | fan_update_desired_level(newlevel); | |
8682 | fan_watchdog_reset(); | |
eaa7571b | 8683 | } |
b21a15f6 | 8684 | } |
1c6a334e | 8685 | |
b21a15f6 | 8686 | mutex_unlock(&fan_mutex); |
72a979f0 | 8687 | return (rc) ? rc : count; |
b21a15f6 | 8688 | } |
1c6a334e | 8689 | |
5fb73bc2 | 8690 | static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, fan_pwm1_show, fan_pwm1_store); |
1c6a334e | 8691 | |
b21a15f6 HMH |
8692 | /* sysfs fan fan1_input ------------------------------------------------ */ |
8693 | static ssize_t fan_fan1_input_show(struct device *dev, | |
8694 | struct device_attribute *attr, | |
8695 | char *buf) | |
8696 | { | |
8697 | int res; | |
8698 | unsigned int speed; | |
1c6a334e | 8699 | |
b21a15f6 HMH |
8700 | res = fan_get_speed(&speed); |
8701 | if (res < 0) | |
8702 | return res; | |
1c6a334e | 8703 | |
b21a15f6 HMH |
8704 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); |
8705 | } | |
18ad7996 | 8706 | |
5fb73bc2 | 8707 | static DEVICE_ATTR(fan1_input, S_IRUGO, fan_fan1_input_show, NULL); |
40ca9fdf | 8708 | |
d7377247 HMH |
8709 | /* sysfs fan fan2_input ------------------------------------------------ */ |
8710 | static ssize_t fan_fan2_input_show(struct device *dev, | |
8711 | struct device_attribute *attr, | |
8712 | char *buf) | |
8713 | { | |
8714 | int res; | |
8715 | unsigned int speed; | |
8716 | ||
8717 | res = fan2_get_speed(&speed); | |
8718 | if (res < 0) | |
8719 | return res; | |
8720 | ||
8721 | return snprintf(buf, PAGE_SIZE, "%u\n", speed); | |
8722 | } | |
8723 | ||
5fb73bc2 | 8724 | static DEVICE_ATTR(fan2_input, S_IRUGO, fan_fan2_input_show, NULL); |
d7377247 | 8725 | |
b21a15f6 | 8726 | /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ |
ac3054c4 | 8727 | static ssize_t fan_watchdog_show(struct device_driver *drv, char *buf) |
b21a15f6 HMH |
8728 | { |
8729 | return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); | |
18ad7996 HMH |
8730 | } |
8731 | ||
ac3054c4 GKH |
8732 | static ssize_t fan_watchdog_store(struct device_driver *drv, const char *buf, |
8733 | size_t count) | |
18ad7996 | 8734 | { |
b21a15f6 HMH |
8735 | unsigned long t; |
8736 | ||
8737 | if (parse_strtoul(buf, 120, &t)) | |
8738 | return -EINVAL; | |
40ca9fdf | 8739 | |
ecf2a80a HMH |
8740 | if (!fan_control_allowed) |
8741 | return -EPERM; | |
8742 | ||
b21a15f6 HMH |
8743 | fan_watchdog_maxinterval = t; |
8744 | fan_watchdog_reset(); | |
40ca9fdf | 8745 | |
74a60c0f HMH |
8746 | tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); |
8747 | ||
b21a15f6 HMH |
8748 | return count; |
8749 | } | |
ac3054c4 | 8750 | static DRIVER_ATTR_RW(fan_watchdog); |
b21a15f6 HMH |
8751 | |
8752 | /* --------------------------------------------------------------------- */ | |
8753 | static struct attribute *fan_attributes[] = { | |
5fb73bc2 BM |
8754 | &dev_attr_pwm1_enable.attr, &dev_attr_pwm1.attr, |
8755 | &dev_attr_fan1_input.attr, | |
d7377247 | 8756 | NULL, /* for fan2_input */ |
b21a15f6 HMH |
8757 | NULL |
8758 | }; | |
8759 | ||
8760 | static const struct attribute_group fan_attr_group = { | |
8761 | .attrs = fan_attributes, | |
8762 | }; | |
8763 | ||
599eefff | 8764 | #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ |
d7377247 | 8765 | #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ |
7d95a3d5 | 8766 | |
7d95a3d5 | 8767 | static const struct tpacpi_quirk fan_quirk_table[] __initconst = { |
599eefff JW |
8768 | TPACPI_QEC_IBM('1', 'Y', TPACPI_FAN_Q1), |
8769 | TPACPI_QEC_IBM('7', '8', TPACPI_FAN_Q1), | |
8770 | TPACPI_QEC_IBM('7', '6', TPACPI_FAN_Q1), | |
8771 | TPACPI_QEC_IBM('7', '0', TPACPI_FAN_Q1), | |
8772 | TPACPI_QEC_LNV('7', 'M', TPACPI_FAN_2FAN), | |
8773 | TPACPI_Q_LNV('N', '1', TPACPI_FAN_2FAN), | |
7d95a3d5 HMH |
8774 | }; |
8775 | ||
b21a15f6 HMH |
8776 | static int __init fan_init(struct ibm_init_struct *iibm) |
8777 | { | |
8778 | int rc; | |
7d95a3d5 | 8779 | unsigned long quirks; |
b21a15f6 | 8780 | |
74a60c0f HMH |
8781 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8782 | "initializing fan subdriver\n"); | |
b21a15f6 HMH |
8783 | |
8784 | mutex_init(&fan_mutex); | |
8785 | fan_status_access_mode = TPACPI_FAN_NONE; | |
8786 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8787 | fan_control_commands = 0; | |
8788 | fan_watchdog_maxinterval = 0; | |
8789 | tp_features.fan_ctrl_status_undef = 0; | |
d7377247 | 8790 | tp_features.second_fan = 0; |
b21a15f6 HMH |
8791 | fan_control_desired_level = 7; |
8792 | ||
e28393c0 HMH |
8793 | if (tpacpi_is_ibm()) { |
8794 | TPACPI_ACPIHANDLE_INIT(fans); | |
8795 | TPACPI_ACPIHANDLE_INIT(gfan); | |
8796 | TPACPI_ACPIHANDLE_INIT(sfan); | |
8797 | } | |
b21a15f6 | 8798 | |
7d95a3d5 HMH |
8799 | quirks = tpacpi_check_quirks(fan_quirk_table, |
8800 | ARRAY_SIZE(fan_quirk_table)); | |
8801 | ||
b21a15f6 HMH |
8802 | if (gfan_handle) { |
8803 | /* 570, 600e/x, 770e, 770x */ | |
8804 | fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; | |
8805 | } else { | |
8806 | /* all other ThinkPads: note that even old-style | |
8807 | * ThinkPad ECs supports the fan control register */ | |
8808 | if (likely(acpi_ec_read(fan_status_offset, | |
8809 | &fan_control_initial_status))) { | |
8810 | fan_status_access_mode = TPACPI_FAN_RD_TPEC; | |
7d95a3d5 HMH |
8811 | if (quirks & TPACPI_FAN_Q1) |
8812 | fan_quirk1_setup(); | |
d7377247 HMH |
8813 | if (quirks & TPACPI_FAN_2FAN) { |
8814 | tp_features.second_fan = 1; | |
8815 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, | |
8816 | "secondary fan support enabled\n"); | |
8817 | } | |
b21a15f6 | 8818 | } else { |
5cac62ac | 8819 | pr_err("ThinkPad ACPI EC access misbehaving, fan status and control unavailable\n"); |
b21a15f6 HMH |
8820 | return 1; |
8821 | } | |
8822 | } | |
8823 | ||
8824 | if (sfan_handle) { | |
8825 | /* 570, 770x-JL */ | |
8826 | fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; | |
8827 | fan_control_commands |= | |
8828 | TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; | |
8829 | } else { | |
8830 | if (!gfan_handle) { | |
8831 | /* gfan without sfan means no fan control */ | |
8832 | /* all other models implement TP EC 0x2f control */ | |
8833 | ||
8834 | if (fans_handle) { | |
8835 | /* X31, X40, X41 */ | |
8836 | fan_control_access_mode = | |
8837 | TPACPI_FAN_WR_ACPI_FANS; | |
8838 | fan_control_commands |= | |
8839 | TPACPI_FAN_CMD_SPEED | | |
8840 | TPACPI_FAN_CMD_LEVEL | | |
8841 | TPACPI_FAN_CMD_ENABLE; | |
8842 | } else { | |
8843 | fan_control_access_mode = TPACPI_FAN_WR_TPEC; | |
8844 | fan_control_commands |= | |
8845 | TPACPI_FAN_CMD_LEVEL | | |
8846 | TPACPI_FAN_CMD_ENABLE; | |
8847 | } | |
fe98a52c | 8848 | } |
b21a15f6 | 8849 | } |
18ad7996 | 8850 | |
74a60c0f HMH |
8851 | vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
8852 | "fan is %s, modes %d, %d\n", | |
b21a15f6 HMH |
8853 | str_supported(fan_status_access_mode != TPACPI_FAN_NONE || |
8854 | fan_control_access_mode != TPACPI_FAN_WR_NONE), | |
8855 | fan_status_access_mode, fan_control_access_mode); | |
1c6a334e | 8856 | |
b21a15f6 HMH |
8857 | /* fan control master switch */ |
8858 | if (!fan_control_allowed) { | |
8859 | fan_control_access_mode = TPACPI_FAN_WR_NONE; | |
8860 | fan_control_commands = 0; | |
74a60c0f | 8861 | dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, |
b21a15f6 | 8862 | "fan control features disabled by parameter\n"); |
18ad7996 | 8863 | } |
40ca9fdf | 8864 | |
b21a15f6 HMH |
8865 | /* update fan_control_desired_level */ |
8866 | if (fan_status_access_mode != TPACPI_FAN_NONE) | |
8867 | fan_get_status_safe(NULL); | |
fe98a52c | 8868 | |
b21a15f6 HMH |
8869 | if (fan_status_access_mode != TPACPI_FAN_NONE || |
8870 | fan_control_access_mode != TPACPI_FAN_WR_NONE) { | |
d7377247 HMH |
8871 | if (tp_features.second_fan) { |
8872 | /* attach second fan tachometer */ | |
8873 | fan_attributes[ARRAY_SIZE(fan_attributes)-2] = | |
5fb73bc2 | 8874 | &dev_attr_fan2_input.attr; |
d7377247 | 8875 | } |
6b99e356 | 8876 | rc = sysfs_create_group(&tpacpi_hwmon->kobj, |
b21a15f6 | 8877 | &fan_attr_group); |
b21a15f6 HMH |
8878 | if (rc < 0) |
8879 | return rc; | |
9c0a76e1 HMH |
8880 | |
8881 | rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, | |
8882 | &driver_attr_fan_watchdog); | |
8883 | if (rc < 0) { | |
6b99e356 | 8884 | sysfs_remove_group(&tpacpi_hwmon->kobj, |
9c0a76e1 HMH |
8885 | &fan_attr_group); |
8886 | return rc; | |
8887 | } | |
b21a15f6 HMH |
8888 | return 0; |
8889 | } else | |
8890 | return 1; | |
56b6aeb0 HMH |
8891 | } |
8892 | ||
b21a15f6 | 8893 | static void fan_exit(void) |
56b6aeb0 | 8894 | { |
74a60c0f | 8895 | vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, |
35ff8b9f | 8896 | "cancelling any pending fan watchdog tasks\n"); |
56b6aeb0 | 8897 | |
b21a15f6 | 8898 | /* FIXME: can we really do this unconditionally? */ |
6b99e356 | 8899 | sysfs_remove_group(&tpacpi_hwmon->kobj, &fan_attr_group); |
35ff8b9f HMH |
8900 | driver_remove_file(&tpacpi_hwmon_pdriver.driver, |
8901 | &driver_attr_fan_watchdog); | |
40ca9fdf | 8902 | |
b21a15f6 | 8903 | cancel_delayed_work(&fan_watchdog_task); |
e0e3c061 | 8904 | flush_workqueue(tpacpi_wq); |
56b6aeb0 HMH |
8905 | } |
8906 | ||
fd3c3a42 | 8907 | static void fan_suspend(void) |
75700e53 | 8908 | { |
0081b162 HMH |
8909 | int rc; |
8910 | ||
75700e53 HMH |
8911 | if (!fan_control_allowed) |
8912 | return; | |
8913 | ||
8914 | /* Store fan status in cache */ | |
0081b162 HMH |
8915 | fan_control_resume_level = 0; |
8916 | rc = fan_get_status_safe(&fan_control_resume_level); | |
8917 | if (rc < 0) | |
5cac62ac AS |
8918 | pr_notice("failed to read fan level for later restore during resume: %d\n", |
8919 | rc); | |
0081b162 HMH |
8920 | |
8921 | /* if it is undefined, don't attempt to restore it. | |
8922 | * KEEP THIS LAST */ | |
75700e53 | 8923 | if (tp_features.fan_ctrl_status_undef) |
0081b162 | 8924 | fan_control_resume_level = 0; |
75700e53 HMH |
8925 | } |
8926 | ||
8927 | static void fan_resume(void) | |
8928 | { | |
75700e53 HMH |
8929 | u8 current_level = 7; |
8930 | bool do_set = false; | |
0081b162 | 8931 | int rc; |
75700e53 HMH |
8932 | |
8933 | /* DSDT *always* updates status on resume */ | |
8934 | tp_features.fan_ctrl_status_undef = 0; | |
8935 | ||
75700e53 | 8936 | if (!fan_control_allowed || |
0081b162 | 8937 | !fan_control_resume_level || |
75700e53 HMH |
8938 | (fan_get_status_safe(¤t_level) < 0)) |
8939 | return; | |
8940 | ||
8941 | switch (fan_control_access_mode) { | |
8942 | case TPACPI_FAN_WR_ACPI_SFAN: | |
0081b162 HMH |
8943 | /* never decrease fan level */ |
8944 | do_set = (fan_control_resume_level > current_level); | |
75700e53 HMH |
8945 | break; |
8946 | case TPACPI_FAN_WR_ACPI_FANS: | |
8947 | case TPACPI_FAN_WR_TPEC: | |
0081b162 HMH |
8948 | /* never decrease fan level, scale is: |
8949 | * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO | |
8950 | * | |
8951 | * We expect the firmware to set either 7 or AUTO, but we | |
8952 | * handle FULLSPEED out of paranoia. | |
8953 | * | |
8954 | * So, we can safely only restore FULLSPEED or 7, anything | |
8955 | * else could slow the fan. Restoring AUTO is useless, at | |
8956 | * best that's exactly what the DSDT already set (it is the | |
8957 | * slower it uses). | |
8958 | * | |
8959 | * Always keep in mind that the DSDT *will* have set the | |
8960 | * fans to what the vendor supposes is the best level. We | |
8961 | * muck with it only to speed the fan up. | |
8962 | */ | |
8963 | if (fan_control_resume_level != 7 && | |
8964 | !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) | |
8965 | return; | |
8966 | else | |
8967 | do_set = !(current_level & TP_EC_FAN_FULLSPEED) && | |
8968 | (current_level != fan_control_resume_level); | |
75700e53 HMH |
8969 | break; |
8970 | default: | |
8971 | return; | |
8972 | } | |
8973 | if (do_set) { | |
0978e012 JP |
8974 | pr_notice("restoring fan level to 0x%02x\n", |
8975 | fan_control_resume_level); | |
0081b162 HMH |
8976 | rc = fan_set_level_safe(fan_control_resume_level); |
8977 | if (rc < 0) | |
0978e012 | 8978 | pr_notice("failed to restore fan level: %d\n", rc); |
75700e53 HMH |
8979 | } |
8980 | } | |
8981 | ||
887965e6 | 8982 | static int fan_read(struct seq_file *m) |
56b6aeb0 | 8983 | { |
56b6aeb0 HMH |
8984 | int rc; |
8985 | u8 status; | |
8986 | unsigned int speed = 0; | |
8987 | ||
8988 | switch (fan_status_access_mode) { | |
efa27145 | 8989 | case TPACPI_FAN_RD_ACPI_GFAN: |
56b6aeb0 | 8990 | /* 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
8991 | rc = fan_get_status_safe(&status); |
8992 | if (rc < 0) | |
56b6aeb0 HMH |
8993 | return rc; |
8994 | ||
887965e6 | 8995 | seq_printf(m, "status:\t\t%s\n" |
56b6aeb0 HMH |
8996 | "level:\t\t%d\n", |
8997 | (status != 0) ? "enabled" : "disabled", status); | |
8998 | break; | |
8999 | ||
efa27145 | 9000 | case TPACPI_FAN_RD_TPEC: |
56b6aeb0 | 9001 | /* all except 570, 600e/x, 770e, 770x */ |
35ff8b9f HMH |
9002 | rc = fan_get_status_safe(&status); |
9003 | if (rc < 0) | |
56b6aeb0 HMH |
9004 | return rc; |
9005 | ||
887965e6 | 9006 | seq_printf(m, "status:\t\t%s\n", |
56b6aeb0 HMH |
9007 | (status != 0) ? "enabled" : "disabled"); |
9008 | ||
35ff8b9f HMH |
9009 | rc = fan_get_speed(&speed); |
9010 | if (rc < 0) | |
56b6aeb0 HMH |
9011 | return rc; |
9012 | ||
887965e6 | 9013 | seq_printf(m, "speed:\t\t%d\n", speed); |
56b6aeb0 | 9014 | |
efa27145 | 9015 | if (status & TP_EC_FAN_FULLSPEED) |
56b6aeb0 | 9016 | /* Disengaged mode takes precedence */ |
887965e6 | 9017 | seq_printf(m, "level:\t\tdisengaged\n"); |
efa27145 | 9018 | else if (status & TP_EC_FAN_AUTO) |
887965e6 | 9019 | seq_printf(m, "level:\t\tauto\n"); |
56b6aeb0 | 9020 | else |
887965e6 | 9021 | seq_printf(m, "level:\t\t%d\n", status); |
56b6aeb0 HMH |
9022 | break; |
9023 | ||
efa27145 | 9024 | case TPACPI_FAN_NONE: |
56b6aeb0 | 9025 | default: |
887965e6 | 9026 | seq_printf(m, "status:\t\tnot supported\n"); |
56b6aeb0 HMH |
9027 | } |
9028 | ||
efa27145 | 9029 | if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { |
887965e6 | 9030 | seq_printf(m, "commands:\tlevel <level>"); |
56b6aeb0 HMH |
9031 | |
9032 | switch (fan_control_access_mode) { | |
efa27145 | 9033 | case TPACPI_FAN_WR_ACPI_SFAN: |
887965e6 | 9034 | seq_printf(m, " (<level> is 0-7)\n"); |
56b6aeb0 HMH |
9035 | break; |
9036 | ||
9037 | default: | |
5cac62ac | 9038 | seq_printf(m, " (<level> is 0-7, auto, disengaged, full-speed)\n"); |
56b6aeb0 HMH |
9039 | break; |
9040 | } | |
9041 | } | |
18ad7996 | 9042 | |
efa27145 | 9043 | if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) |
887965e6 | 9044 | seq_printf(m, "commands:\tenable, disable\n" |
5cac62ac | 9045 | "commands:\twatchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))\n"); |
1da177e4 | 9046 | |
efa27145 | 9047 | if (fan_control_commands & TPACPI_FAN_CMD_SPEED) |
5cac62ac | 9048 | seq_printf(m, "commands:\tspeed <speed> (<speed> is 0-65535)\n"); |
56b6aeb0 | 9049 | |
887965e6 | 9050 | return 0; |
78f81cc4 BD |
9051 | } |
9052 | ||
18ad7996 HMH |
9053 | static int fan_write_cmd_level(const char *cmd, int *rc) |
9054 | { | |
9055 | int level; | |
9056 | ||
a12095c2 | 9057 | if (strlencmp(cmd, "level auto") == 0) |
efa27145 | 9058 | level = TP_EC_FAN_AUTO; |
fe98a52c | 9059 | else if ((strlencmp(cmd, "level disengaged") == 0) | |
35ff8b9f | 9060 | (strlencmp(cmd, "level full-speed") == 0)) |
efa27145 | 9061 | level = TP_EC_FAN_FULLSPEED; |
a12095c2 | 9062 | else if (sscanf(cmd, "level %d", &level) != 1) |
18ad7996 HMH |
9063 | return 0; |
9064 | ||
35ff8b9f HMH |
9065 | *rc = fan_set_level_safe(level); |
9066 | if (*rc == -ENXIO) | |
0978e012 JP |
9067 | pr_err("level command accepted for unsupported access mode %d\n", |
9068 | fan_control_access_mode); | |
74a60c0f HMH |
9069 | else if (!*rc) |
9070 | tpacpi_disclose_usertask("procfs fan", | |
9071 | "set level to %d\n", level); | |
18ad7996 HMH |
9072 | |
9073 | return 1; | |
9074 | } | |
9075 | ||
9076 | static int fan_write_cmd_enable(const char *cmd, int *rc) | |
9077 | { | |
9078 | if (strlencmp(cmd, "enable") != 0) | |
9079 | return 0; | |
9080 | ||
35ff8b9f HMH |
9081 | *rc = fan_set_enable(); |
9082 | if (*rc == -ENXIO) | |
0978e012 JP |
9083 | pr_err("enable command accepted for unsupported access mode %d\n", |
9084 | fan_control_access_mode); | |
74a60c0f HMH |
9085 | else if (!*rc) |
9086 | tpacpi_disclose_usertask("procfs fan", "enable\n"); | |
18ad7996 HMH |
9087 | |
9088 | return 1; | |
9089 | } | |
9090 | ||
9091 | static int fan_write_cmd_disable(const char *cmd, int *rc) | |
9092 | { | |
9093 | if (strlencmp(cmd, "disable") != 0) | |
9094 | return 0; | |
9095 | ||
35ff8b9f HMH |
9096 | *rc = fan_set_disable(); |
9097 | if (*rc == -ENXIO) | |
0978e012 JP |
9098 | pr_err("disable command accepted for unsupported access mode %d\n", |
9099 | fan_control_access_mode); | |
74a60c0f HMH |
9100 | else if (!*rc) |
9101 | tpacpi_disclose_usertask("procfs fan", "disable\n"); | |
18ad7996 HMH |
9102 | |
9103 | return 1; | |
9104 | } | |
9105 | ||
9106 | static int fan_write_cmd_speed(const char *cmd, int *rc) | |
9107 | { | |
9108 | int speed; | |
9109 | ||
a8b7a662 HMH |
9110 | /* TODO: |
9111 | * Support speed <low> <medium> <high> ? */ | |
9112 | ||
18ad7996 HMH |
9113 | if (sscanf(cmd, "speed %d", &speed) != 1) |
9114 | return 0; | |
9115 | ||
35ff8b9f HMH |
9116 | *rc = fan_set_speed(speed); |
9117 | if (*rc == -ENXIO) | |
0978e012 JP |
9118 | pr_err("speed command accepted for unsupported access mode %d\n", |
9119 | fan_control_access_mode); | |
74a60c0f HMH |
9120 | else if (!*rc) |
9121 | tpacpi_disclose_usertask("procfs fan", | |
9122 | "set speed to %d\n", speed); | |
18ad7996 HMH |
9123 | |
9124 | return 1; | |
9125 | } | |
9126 | ||
16663a87 HMH |
9127 | static int fan_write_cmd_watchdog(const char *cmd, int *rc) |
9128 | { | |
9129 | int interval; | |
9130 | ||
9131 | if (sscanf(cmd, "watchdog %d", &interval) != 1) | |
9132 | return 0; | |
9133 | ||
9134 | if (interval < 0 || interval > 120) | |
9135 | *rc = -EINVAL; | |
74a60c0f | 9136 | else { |
16663a87 | 9137 | fan_watchdog_maxinterval = interval; |
74a60c0f HMH |
9138 | tpacpi_disclose_usertask("procfs fan", |
9139 | "set watchdog timer to %d\n", | |
9140 | interval); | |
9141 | } | |
16663a87 HMH |
9142 | |
9143 | return 1; | |
9144 | } | |
9145 | ||
18ad7996 HMH |
9146 | static int fan_write(char *buf) |
9147 | { | |
9148 | char *cmd; | |
9149 | int rc = 0; | |
9150 | ||
9151 | while (!rc && (cmd = next_cmd(&buf))) { | |
efa27145 | 9152 | if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && |
18ad7996 | 9153 | fan_write_cmd_level(cmd, &rc)) && |
efa27145 | 9154 | !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && |
18ad7996 | 9155 | (fan_write_cmd_enable(cmd, &rc) || |
16663a87 HMH |
9156 | fan_write_cmd_disable(cmd, &rc) || |
9157 | fan_write_cmd_watchdog(cmd, &rc))) && | |
efa27145 | 9158 | !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && |
18ad7996 HMH |
9159 | fan_write_cmd_speed(cmd, &rc)) |
9160 | ) | |
9161 | rc = -EINVAL; | |
16663a87 HMH |
9162 | else if (!rc) |
9163 | fan_watchdog_reset(); | |
18ad7996 HMH |
9164 | } |
9165 | ||
9166 | return rc; | |
9167 | } | |
9168 | ||
a5763f22 HMH |
9169 | static struct ibm_struct fan_driver_data = { |
9170 | .name = "fan", | |
9171 | .read = fan_read, | |
9172 | .write = fan_write, | |
9173 | .exit = fan_exit, | |
75700e53 HMH |
9174 | .suspend = fan_suspend, |
9175 | .resume = fan_resume, | |
a5763f22 HMH |
9176 | }; |
9177 | ||
420f9739 DH |
9178 | /************************************************************************* |
9179 | * Mute LED subdriver | |
9180 | */ | |
9181 | ||
9e908a18 | 9182 | #define TPACPI_LED_MAX 2 |
420f9739 DH |
9183 | |
9184 | struct tp_led_table { | |
9185 | acpi_string name; | |
9186 | int on_value; | |
9187 | int off_value; | |
9188 | int state; | |
9189 | }; | |
9190 | ||
9e908a18 TI |
9191 | static struct tp_led_table led_tables[TPACPI_LED_MAX] = { |
9192 | [LED_AUDIO_MUTE] = { | |
420f9739 DH |
9193 | .name = "SSMS", |
9194 | .on_value = 1, | |
9195 | .off_value = 0, | |
9196 | }, | |
9e908a18 | 9197 | [LED_AUDIO_MICMUTE] = { |
420f9739 DH |
9198 | .name = "MMTS", |
9199 | .on_value = 2, | |
9200 | .off_value = 0, | |
9201 | }, | |
9202 | }; | |
9203 | ||
9204 | static int mute_led_on_off(struct tp_led_table *t, bool state) | |
9205 | { | |
9206 | acpi_handle temp; | |
9207 | int output; | |
9208 | ||
3526ecad | 9209 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) { |
420f9739 DH |
9210 | pr_warn("Thinkpad ACPI has no %s interface.\n", t->name); |
9211 | return -EIO; | |
9212 | } | |
9213 | ||
9214 | if (!acpi_evalf(hkey_handle, &output, t->name, "dd", | |
9215 | state ? t->on_value : t->off_value)) | |
9216 | return -EIO; | |
9217 | ||
9218 | t->state = state; | |
9219 | return state; | |
9220 | } | |
9221 | ||
9e908a18 | 9222 | static int tpacpi_led_set(int whichled, bool on) |
420f9739 DH |
9223 | { |
9224 | struct tp_led_table *t; | |
9225 | ||
420f9739 DH |
9226 | t = &led_tables[whichled]; |
9227 | if (t->state < 0 || t->state == on) | |
9228 | return t->state; | |
9229 | return mute_led_on_off(t, on); | |
9230 | } | |
420f9739 | 9231 | |
4e1d0924 TI |
9232 | static int tpacpi_led_mute_set(struct led_classdev *led_cdev, |
9233 | enum led_brightness brightness) | |
9234 | { | |
9e908a18 | 9235 | return tpacpi_led_set(LED_AUDIO_MUTE, brightness != LED_OFF); |
4e1d0924 TI |
9236 | } |
9237 | ||
9238 | static int tpacpi_led_micmute_set(struct led_classdev *led_cdev, | |
9239 | enum led_brightness brightness) | |
9240 | { | |
9e908a18 | 9241 | return tpacpi_led_set(LED_AUDIO_MICMUTE, brightness != LED_OFF); |
4e1d0924 TI |
9242 | } |
9243 | ||
9e908a18 TI |
9244 | static struct led_classdev mute_led_cdev[TPACPI_LED_MAX] = { |
9245 | [LED_AUDIO_MUTE] = { | |
4e1d0924 TI |
9246 | .name = "platform::mute", |
9247 | .max_brightness = 1, | |
9248 | .brightness_set_blocking = tpacpi_led_mute_set, | |
9249 | .default_trigger = "audio-mute", | |
9250 | }, | |
9e908a18 | 9251 | [LED_AUDIO_MICMUTE] = { |
4e1d0924 TI |
9252 | .name = "platform::micmute", |
9253 | .max_brightness = 1, | |
9254 | .brightness_set_blocking = tpacpi_led_micmute_set, | |
9255 | .default_trigger = "audio-micmute", | |
9256 | }, | |
9257 | }; | |
420f9739 DH |
9258 | |
9259 | static int mute_led_init(struct ibm_init_struct *iibm) | |
9260 | { | |
9261 | acpi_handle temp; | |
4e1d0924 | 9262 | int i, err; |
420f9739 DH |
9263 | |
9264 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9265 | struct tp_led_table *t = &led_tables[i]; | |
4e1d0924 | 9266 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) { |
420f9739 | 9267 | t->state = -ENODEV; |
4e1d0924 TI |
9268 | continue; |
9269 | } | |
9270 | ||
9e908a18 | 9271 | mute_led_cdev[i].brightness = ledtrig_audio_get(i); |
4e1d0924 TI |
9272 | err = led_classdev_register(&tpacpi_pdev->dev, &mute_led_cdev[i]); |
9273 | if (err < 0) { | |
9274 | while (i--) { | |
9275 | if (led_tables[i].state >= 0) | |
9276 | led_classdev_unregister(&mute_led_cdev[i]); | |
9277 | } | |
9278 | return err; | |
9279 | } | |
420f9739 DH |
9280 | } |
9281 | return 0; | |
9282 | } | |
9283 | ||
9284 | static void mute_led_exit(void) | |
9285 | { | |
9286 | int i; | |
9287 | ||
4e1d0924 TI |
9288 | for (i = 0; i < TPACPI_LED_MAX; i++) { |
9289 | if (led_tables[i].state >= 0) { | |
9290 | led_classdev_unregister(&mute_led_cdev[i]); | |
9291 | tpacpi_led_set(i, false); | |
9292 | } | |
9293 | } | |
420f9739 DH |
9294 | } |
9295 | ||
119f4498 TI |
9296 | static void mute_led_resume(void) |
9297 | { | |
9298 | int i; | |
9299 | ||
9300 | for (i = 0; i < TPACPI_LED_MAX; i++) { | |
9301 | struct tp_led_table *t = &led_tables[i]; | |
9302 | if (t->state >= 0) | |
9303 | mute_led_on_off(t, t->state); | |
9304 | } | |
9305 | } | |
9306 | ||
420f9739 DH |
9307 | static struct ibm_struct mute_led_driver_data = { |
9308 | .name = "mute_led", | |
9309 | .exit = mute_led_exit, | |
119f4498 | 9310 | .resume = mute_led_resume, |
420f9739 DH |
9311 | }; |
9312 | ||
2801b968 OG |
9313 | /* |
9314 | * Battery Wear Control Driver | |
9315 | * Contact: Ognjen Galic <smclt30p@gmail.com> | |
9316 | */ | |
9317 | ||
9318 | /* Metadata */ | |
9319 | ||
9320 | #define GET_START "BCTG" | |
9321 | #define SET_START "BCCS" | |
9322 | #define GET_STOP "BCSG" | |
9323 | #define SET_STOP "BCSS" | |
9324 | ||
9325 | #define START_ATTR "charge_start_threshold" | |
9326 | #define STOP_ATTR "charge_stop_threshold" | |
9327 | ||
9328 | enum { | |
9329 | BAT_ANY = 0, | |
9330 | BAT_PRIMARY = 1, | |
9331 | BAT_SECONDARY = 2 | |
9332 | }; | |
9333 | ||
9334 | enum { | |
9335 | /* Error condition bit */ | |
9336 | METHOD_ERR = BIT(31), | |
9337 | }; | |
9338 | ||
9339 | enum { | |
9340 | /* This is used in the get/set helpers */ | |
9341 | THRESHOLD_START, | |
9342 | THRESHOLD_STOP, | |
9343 | }; | |
9344 | ||
9345 | struct tpacpi_battery_data { | |
9346 | int charge_start; | |
9347 | int start_support; | |
9348 | int charge_stop; | |
9349 | int stop_support; | |
9350 | }; | |
9351 | ||
9352 | struct tpacpi_battery_driver_data { | |
9353 | struct tpacpi_battery_data batteries[3]; | |
9354 | int individual_addressing; | |
9355 | }; | |
9356 | ||
9357 | static struct tpacpi_battery_driver_data battery_info; | |
9358 | ||
9359 | /* ACPI helpers/functions/probes */ | |
9360 | ||
9361 | /** | |
9362 | * This evaluates a ACPI method call specific to the battery | |
9363 | * ACPI extension. The specifics are that an error is marked | |
9364 | * in the 32rd bit of the response, so we just check that here. | |
9365 | */ | |
9366 | static acpi_status tpacpi_battery_acpi_eval(char *method, int *ret, int param) | |
9367 | { | |
9368 | int response; | |
9369 | ||
9370 | if (!acpi_evalf(hkey_handle, &response, method, "dd", param)) { | |
9371 | acpi_handle_err(hkey_handle, "%s: evaluate failed", method); | |
9372 | return AE_ERROR; | |
9373 | } | |
9374 | if (response & METHOD_ERR) { | |
9375 | acpi_handle_err(hkey_handle, | |
9376 | "%s evaluated but flagged as error", method); | |
9377 | return AE_ERROR; | |
9378 | } | |
9379 | *ret = response; | |
9380 | return AE_OK; | |
9381 | } | |
9382 | ||
9383 | static int tpacpi_battery_get(int what, int battery, int *ret) | |
9384 | { | |
9385 | switch (what) { | |
9386 | case THRESHOLD_START: | |
9387 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, ret, battery)) | |
9388 | return -ENODEV; | |
9389 | ||
9390 | /* The value is in the low 8 bits of the response */ | |
9391 | *ret = *ret & 0xFF; | |
9392 | return 0; | |
9393 | case THRESHOLD_STOP: | |
9394 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, ret, battery)) | |
9395 | return -ENODEV; | |
9396 | /* Value is in lower 8 bits */ | |
9397 | *ret = *ret & 0xFF; | |
9398 | /* | |
9399 | * On the stop value, if we return 0 that | |
9400 | * does not make any sense. 0 means Default, which | |
9401 | * means that charging stops at 100%, so we return | |
9402 | * that. | |
9403 | */ | |
9404 | if (*ret == 0) | |
9405 | *ret = 100; | |
9406 | return 0; | |
9407 | default: | |
9408 | pr_crit("wrong parameter: %d", what); | |
9409 | return -EINVAL; | |
9410 | } | |
9411 | } | |
9412 | ||
9413 | static int tpacpi_battery_set(int what, int battery, int value) | |
9414 | { | |
9415 | int param, ret; | |
9416 | /* The first 8 bits are the value of the threshold */ | |
9417 | param = value; | |
9418 | /* The battery ID is in bits 8-9, 2 bits */ | |
9419 | param |= battery << 8; | |
9420 | ||
9421 | switch (what) { | |
9422 | case THRESHOLD_START: | |
9423 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_START, &ret, param)) { | |
9424 | pr_err("failed to set charge threshold on battery %d", | |
9425 | battery); | |
9426 | return -ENODEV; | |
9427 | } | |
9428 | return 0; | |
9429 | case THRESHOLD_STOP: | |
9430 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_STOP, &ret, param)) { | |
9431 | pr_err("failed to set stop threshold: %d", battery); | |
9432 | return -ENODEV; | |
9433 | } | |
9434 | return 0; | |
9435 | default: | |
9436 | pr_crit("wrong parameter: %d", what); | |
9437 | return -EINVAL; | |
9438 | } | |
9439 | } | |
9440 | ||
9441 | static int tpacpi_battery_probe(int battery) | |
9442 | { | |
9443 | int ret = 0; | |
9444 | ||
d22296d9 TW |
9445 | memset(&battery_info.batteries[battery], 0, |
9446 | sizeof(battery_info.batteries[battery])); | |
9447 | ||
2801b968 OG |
9448 | /* |
9449 | * 1) Get the current start threshold | |
9450 | * 2) Check for support | |
9451 | * 3) Get the current stop threshold | |
9452 | * 4) Check for support | |
9453 | */ | |
9454 | if (acpi_has_method(hkey_handle, GET_START)) { | |
9455 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, &ret, battery)) { | |
9456 | pr_err("Error probing battery %d\n", battery); | |
9457 | return -ENODEV; | |
9458 | } | |
9459 | /* Individual addressing is in bit 9 */ | |
9460 | if (ret & BIT(9)) | |
9461 | battery_info.individual_addressing = true; | |
9462 | /* Support is marked in bit 8 */ | |
9463 | if (ret & BIT(8)) | |
9464 | battery_info.batteries[battery].start_support = 1; | |
9465 | else | |
9466 | return -ENODEV; | |
9467 | if (tpacpi_battery_get(THRESHOLD_START, battery, | |
9468 | &battery_info.batteries[battery].charge_start)) { | |
9469 | pr_err("Error probing battery %d\n", battery); | |
9470 | return -ENODEV; | |
9471 | } | |
9472 | } | |
9473 | if (acpi_has_method(hkey_handle, GET_STOP)) { | |
9474 | if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, &ret, battery)) { | |
9475 | pr_err("Error probing battery stop; %d\n", battery); | |
9476 | return -ENODEV; | |
9477 | } | |
9478 | /* Support is marked in bit 8 */ | |
9479 | if (ret & BIT(8)) | |
9480 | battery_info.batteries[battery].stop_support = 1; | |
9481 | else | |
9482 | return -ENODEV; | |
9483 | if (tpacpi_battery_get(THRESHOLD_STOP, battery, | |
9484 | &battery_info.batteries[battery].charge_stop)) { | |
9485 | pr_err("Error probing battery stop: %d\n", battery); | |
9486 | return -ENODEV; | |
9487 | } | |
9488 | } | |
9489 | pr_info("battery %d registered (start %d, stop %d)", | |
9490 | battery, | |
9491 | battery_info.batteries[battery].charge_start, | |
9492 | battery_info.batteries[battery].charge_stop); | |
9493 | ||
9494 | return 0; | |
9495 | } | |
9496 | ||
9497 | /* General helper functions */ | |
9498 | ||
9499 | static int tpacpi_battery_get_id(const char *battery_name) | |
9500 | { | |
9501 | ||
1a32ebb2 JW |
9502 | if (strcmp(battery_name, "BAT0") == 0 || |
9503 | tp_features.battery_force_primary) | |
2801b968 OG |
9504 | return BAT_PRIMARY; |
9505 | if (strcmp(battery_name, "BAT1") == 0) | |
9506 | return BAT_SECONDARY; | |
9507 | /* | |
9508 | * If for some reason the battery is not BAT0 nor is it | |
9509 | * BAT1, we will assume it's the default, first battery, | |
9510 | * AKA primary. | |
9511 | */ | |
9512 | pr_warn("unknown battery %s, assuming primary", battery_name); | |
9513 | return BAT_PRIMARY; | |
9514 | } | |
9515 | ||
9516 | /* sysfs interface */ | |
9517 | ||
9518 | static ssize_t tpacpi_battery_store(int what, | |
9519 | struct device *dev, | |
9520 | const char *buf, size_t count) | |
9521 | { | |
9522 | struct power_supply *supply = to_power_supply(dev); | |
9523 | unsigned long value; | |
9524 | int battery, rval; | |
9525 | /* | |
9526 | * Some systems have support for more than | |
9527 | * one battery. If that is the case, | |
9528 | * tpacpi_battery_probe marked that addressing | |
9529 | * them individually is supported, so we do that | |
9530 | * based on the device struct. | |
9531 | * | |
9532 | * On systems that are not supported, we assume | |
9533 | * the primary as most of the ACPI calls fail | |
9534 | * with "Any Battery" as the parameter. | |
9535 | */ | |
9536 | if (battery_info.individual_addressing) | |
9537 | /* BAT_PRIMARY or BAT_SECONDARY */ | |
9538 | battery = tpacpi_battery_get_id(supply->desc->name); | |
9539 | else | |
9540 | battery = BAT_PRIMARY; | |
9541 | ||
9542 | rval = kstrtoul(buf, 10, &value); | |
9543 | if (rval) | |
9544 | return rval; | |
9545 | ||
9546 | switch (what) { | |
9547 | case THRESHOLD_START: | |
9548 | if (!battery_info.batteries[battery].start_support) | |
9549 | return -ENODEV; | |
9550 | /* valid values are [0, 99] */ | |
f8a31eca | 9551 | if (value > 99) |
2801b968 OG |
9552 | return -EINVAL; |
9553 | if (value > battery_info.batteries[battery].charge_stop) | |
9554 | return -EINVAL; | |
9555 | if (tpacpi_battery_set(THRESHOLD_START, battery, value)) | |
9556 | return -ENODEV; | |
9557 | battery_info.batteries[battery].charge_start = value; | |
9558 | return count; | |
9559 | ||
9560 | case THRESHOLD_STOP: | |
9561 | if (!battery_info.batteries[battery].stop_support) | |
9562 | return -ENODEV; | |
9563 | /* valid values are [1, 100] */ | |
9564 | if (value < 1 || value > 100) | |
9565 | return -EINVAL; | |
9566 | if (value < battery_info.batteries[battery].charge_start) | |
9567 | return -EINVAL; | |
9568 | battery_info.batteries[battery].charge_stop = value; | |
9569 | /* | |
9570 | * When 100 is passed to stop, we need to flip | |
9571 | * it to 0 as that the EC understands that as | |
9572 | * "Default", which will charge to 100% | |
9573 | */ | |
9574 | if (value == 100) | |
9575 | value = 0; | |
9576 | if (tpacpi_battery_set(THRESHOLD_STOP, battery, value)) | |
9577 | return -EINVAL; | |
9578 | return count; | |
9579 | default: | |
9580 | pr_crit("Wrong parameter: %d", what); | |
9581 | return -EINVAL; | |
9582 | } | |
9583 | return count; | |
9584 | } | |
9585 | ||
9586 | static ssize_t tpacpi_battery_show(int what, | |
9587 | struct device *dev, | |
9588 | char *buf) | |
9589 | { | |
9590 | struct power_supply *supply = to_power_supply(dev); | |
9591 | int ret, battery; | |
9592 | /* | |
9593 | * Some systems have support for more than | |
9594 | * one battery. If that is the case, | |
9595 | * tpacpi_battery_probe marked that addressing | |
9596 | * them individually is supported, so we; | |
9597 | * based on the device struct. | |
9598 | * | |
9599 | * On systems that are not supported, we assume | |
9600 | * the primary as most of the ACPI calls fail | |
9601 | * with "Any Battery" as the parameter. | |
9602 | */ | |
9603 | if (battery_info.individual_addressing) | |
9604 | /* BAT_PRIMARY or BAT_SECONDARY */ | |
9605 | battery = tpacpi_battery_get_id(supply->desc->name); | |
9606 | else | |
9607 | battery = BAT_PRIMARY; | |
9608 | if (tpacpi_battery_get(what, battery, &ret)) | |
9609 | return -ENODEV; | |
9610 | return sprintf(buf, "%d\n", ret); | |
9611 | } | |
9612 | ||
9613 | static ssize_t charge_start_threshold_show(struct device *device, | |
9614 | struct device_attribute *attr, | |
9615 | char *buf) | |
9616 | { | |
9617 | return tpacpi_battery_show(THRESHOLD_START, device, buf); | |
9618 | } | |
9619 | ||
9620 | static ssize_t charge_stop_threshold_show(struct device *device, | |
9621 | struct device_attribute *attr, | |
9622 | char *buf) | |
9623 | { | |
9624 | return tpacpi_battery_show(THRESHOLD_STOP, device, buf); | |
9625 | } | |
9626 | ||
9627 | static ssize_t charge_start_threshold_store(struct device *dev, | |
9628 | struct device_attribute *attr, | |
9629 | const char *buf, size_t count) | |
9630 | { | |
9631 | return tpacpi_battery_store(THRESHOLD_START, dev, buf, count); | |
9632 | } | |
9633 | ||
9634 | static ssize_t charge_stop_threshold_store(struct device *dev, | |
9635 | struct device_attribute *attr, | |
9636 | const char *buf, size_t count) | |
9637 | { | |
9638 | return tpacpi_battery_store(THRESHOLD_STOP, dev, buf, count); | |
9639 | } | |
9640 | ||
9641 | static DEVICE_ATTR_RW(charge_start_threshold); | |
9642 | static DEVICE_ATTR_RW(charge_stop_threshold); | |
9643 | ||
9644 | static struct attribute *tpacpi_battery_attrs[] = { | |
9645 | &dev_attr_charge_start_threshold.attr, | |
9646 | &dev_attr_charge_stop_threshold.attr, | |
9647 | NULL, | |
9648 | }; | |
9649 | ||
9650 | ATTRIBUTE_GROUPS(tpacpi_battery); | |
9651 | ||
9652 | /* ACPI battery hooking */ | |
9653 | ||
9654 | static int tpacpi_battery_add(struct power_supply *battery) | |
9655 | { | |
9656 | int batteryid = tpacpi_battery_get_id(battery->desc->name); | |
9657 | ||
9658 | if (tpacpi_battery_probe(batteryid)) | |
9659 | return -ENODEV; | |
9660 | if (device_add_groups(&battery->dev, tpacpi_battery_groups)) | |
9661 | return -ENODEV; | |
9662 | return 0; | |
9663 | } | |
9664 | ||
9665 | static int tpacpi_battery_remove(struct power_supply *battery) | |
9666 | { | |
9667 | device_remove_groups(&battery->dev, tpacpi_battery_groups); | |
9668 | return 0; | |
9669 | } | |
9670 | ||
9671 | static struct acpi_battery_hook battery_hook = { | |
9672 | .add_battery = tpacpi_battery_add, | |
9673 | .remove_battery = tpacpi_battery_remove, | |
9674 | .name = "ThinkPad Battery Extension", | |
9675 | }; | |
9676 | ||
9677 | /* Subdriver init/exit */ | |
9678 | ||
1a32ebb2 JW |
9679 | static const struct tpacpi_quirk battery_quirk_table[] __initconst = { |
9680 | /* | |
9681 | * Individual addressing is broken on models that expose the | |
9682 | * primary battery as BAT1. | |
9683 | */ | |
6640ee62 JW |
9684 | TPACPI_Q_LNV('J', '7', true), /* B5400 */ |
9685 | TPACPI_Q_LNV('J', 'I', true), /* Thinkpad 11e */ | |
9686 | TPACPI_Q_LNV3('R', '0', 'B', true), /* Thinkpad 11e gen 3 */ | |
1a32ebb2 | 9687 | TPACPI_Q_LNV3('R', '0', 'C', true), /* Thinkpad 13 */ |
6640ee62 | 9688 | TPACPI_Q_LNV3('R', '0', 'J', true), /* Thinkpad 13 gen 2 */ |
1a32ebb2 JW |
9689 | }; |
9690 | ||
2801b968 OG |
9691 | static int __init tpacpi_battery_init(struct ibm_init_struct *ibm) |
9692 | { | |
d22296d9 TW |
9693 | memset(&battery_info, 0, sizeof(battery_info)); |
9694 | ||
1a32ebb2 JW |
9695 | tp_features.battery_force_primary = tpacpi_check_quirks( |
9696 | battery_quirk_table, | |
9697 | ARRAY_SIZE(battery_quirk_table)); | |
9698 | ||
2801b968 OG |
9699 | battery_hook_register(&battery_hook); |
9700 | return 0; | |
9701 | } | |
9702 | ||
9703 | static void tpacpi_battery_exit(void) | |
9704 | { | |
9705 | battery_hook_unregister(&battery_hook); | |
9706 | } | |
9707 | ||
9708 | static struct ibm_struct battery_driver_data = { | |
9709 | .name = "battery", | |
9710 | .exit = tpacpi_battery_exit, | |
9711 | }; | |
9712 | ||
110ea1d8 AS |
9713 | /************************************************************************* |
9714 | * LCD Shadow subdriver, for the Lenovo PrivacyGuard feature | |
9715 | */ | |
9716 | ||
9717 | static int lcdshadow_state; | |
9718 | ||
9719 | static int lcdshadow_on_off(bool state) | |
9720 | { | |
9721 | acpi_handle set_shadow_handle; | |
9722 | int output; | |
9723 | ||
9724 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "SSSS", &set_shadow_handle))) { | |
9725 | pr_warn("Thinkpad ACPI has no %s interface.\n", "SSSS"); | |
9726 | return -EIO; | |
9727 | } | |
9728 | ||
9729 | if (!acpi_evalf(set_shadow_handle, &output, NULL, "dd", (int)state)) | |
9730 | return -EIO; | |
9731 | ||
9732 | lcdshadow_state = state; | |
9733 | return 0; | |
9734 | } | |
9735 | ||
9736 | static int lcdshadow_set(bool on) | |
9737 | { | |
9738 | if (lcdshadow_state < 0) | |
9739 | return lcdshadow_state; | |
9740 | if (lcdshadow_state == on) | |
9741 | return 0; | |
9742 | return lcdshadow_on_off(on); | |
9743 | } | |
9744 | ||
9745 | static int tpacpi_lcdshadow_init(struct ibm_init_struct *iibm) | |
9746 | { | |
9747 | acpi_handle get_shadow_handle; | |
9748 | int output; | |
9749 | ||
9750 | if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "GSSS", &get_shadow_handle))) { | |
9751 | lcdshadow_state = -ENODEV; | |
9752 | return 0; | |
9753 | } | |
9754 | ||
9755 | if (!acpi_evalf(get_shadow_handle, &output, NULL, "dd", 0)) { | |
9756 | lcdshadow_state = -EIO; | |
9757 | return -EIO; | |
9758 | } | |
9759 | if (!(output & 0x10000)) { | |
9760 | lcdshadow_state = -ENODEV; | |
9761 | return 0; | |
9762 | } | |
9763 | lcdshadow_state = output & 0x1; | |
9764 | ||
9765 | return 0; | |
9766 | } | |
9767 | ||
9768 | static void lcdshadow_resume(void) | |
9769 | { | |
9770 | if (lcdshadow_state >= 0) | |
9771 | lcdshadow_on_off(lcdshadow_state); | |
9772 | } | |
9773 | ||
9774 | static int lcdshadow_read(struct seq_file *m) | |
9775 | { | |
9776 | if (lcdshadow_state < 0) { | |
9777 | seq_puts(m, "status:\t\tnot supported\n"); | |
9778 | } else { | |
9779 | seq_printf(m, "status:\t\t%d\n", lcdshadow_state); | |
9780 | seq_puts(m, "commands:\t0, 1\n"); | |
9781 | } | |
9782 | ||
9783 | return 0; | |
9784 | } | |
9785 | ||
9786 | static int lcdshadow_write(char *buf) | |
9787 | { | |
9788 | char *cmd; | |
9789 | int state = -1; | |
9790 | ||
9791 | if (lcdshadow_state < 0) | |
9792 | return -ENODEV; | |
9793 | ||
9794 | while ((cmd = next_cmd(&buf))) { | |
9795 | if (strlencmp(cmd, "0") == 0) | |
9796 | state = 0; | |
9797 | else if (strlencmp(cmd, "1") == 0) | |
9798 | state = 1; | |
9799 | } | |
9800 | ||
9801 | if (state == -1) | |
9802 | return -EINVAL; | |
9803 | ||
9804 | return lcdshadow_set(state); | |
9805 | } | |
9806 | ||
9807 | static struct ibm_struct lcdshadow_driver_data = { | |
9808 | .name = "lcdshadow", | |
9809 | .resume = lcdshadow_resume, | |
9810 | .read = lcdshadow_read, | |
9811 | .write = lcdshadow_write, | |
9812 | }; | |
9813 | ||
56b6aeb0 HMH |
9814 | /**************************************************************************** |
9815 | **************************************************************************** | |
9816 | * | |
9817 | * Infrastructure | |
9818 | * | |
9819 | **************************************************************************** | |
9820 | ****************************************************************************/ | |
9821 | ||
8b468c0c HMH |
9822 | /* |
9823 | * HKEY event callout for other subdrivers go here | |
9824 | * (yes, it is ugly, but it is quick, safe, and gets the job done | |
9825 | */ | |
9826 | static void tpacpi_driver_event(const unsigned int hkey_event) | |
9827 | { | |
347a2686 HMH |
9828 | if (ibm_backlight_device) { |
9829 | switch (hkey_event) { | |
9830 | case TP_HKEY_EV_BRGHT_UP: | |
9831 | case TP_HKEY_EV_BRGHT_DOWN: | |
9832 | tpacpi_brightness_notify_change(); | |
9833 | } | |
9834 | } | |
0d204c34 HMH |
9835 | if (alsa_card) { |
9836 | switch (hkey_event) { | |
9837 | case TP_HKEY_EV_VOL_UP: | |
9838 | case TP_HKEY_EV_VOL_DOWN: | |
9839 | case TP_HKEY_EV_VOL_MUTE: | |
9840 | volume_alsa_notify_change(); | |
9841 | } | |
9842 | } | |
c685e20d HG |
9843 | if (tp_features.kbdlight && hkey_event == TP_HKEY_EV_KBD_LIGHT) { |
9844 | enum led_brightness brightness; | |
9845 | ||
9846 | mutex_lock(&kbdlight_mutex); | |
9847 | ||
9848 | /* | |
9849 | * Check the brightness actually changed, setting the brightness | |
9850 | * through kbdlight_set_level() also triggers this event. | |
9851 | */ | |
9852 | brightness = kbdlight_sysfs_get(NULL); | |
9853 | if (kbdlight_brightness != brightness) { | |
9854 | kbdlight_brightness = brightness; | |
9855 | led_classdev_notify_brightness_hw_changed( | |
9856 | &tpacpi_led_kbdlight.led_classdev, brightness); | |
9857 | } | |
9858 | ||
9859 | mutex_unlock(&kbdlight_mutex); | |
9860 | } | |
8b468c0c HMH |
9861 | } |
9862 | ||
8b468c0c HMH |
9863 | static void hotkey_driver_event(const unsigned int scancode) |
9864 | { | |
67bcae6e | 9865 | tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); |
8b468c0c HMH |
9866 | } |
9867 | ||
7fd40029 HMH |
9868 | /* --------------------------------------------------------------------- */ |
9869 | ||
56b6aeb0 | 9870 | /* /proc support */ |
94954cc6 | 9871 | static struct proc_dir_entry *proc_dir; |
16663a87 | 9872 | |
56b6aeb0 HMH |
9873 | /* |
9874 | * Module and infrastructure proble, init and exit handling | |
9875 | */ | |
1da177e4 | 9876 | |
90ab5ee9 | 9877 | static bool force_load; |
b21a15f6 | 9878 | |
fe08bc4b | 9879 | #ifdef CONFIG_THINKPAD_ACPI_DEBUG |
a5763f22 | 9880 | static const char * __init str_supported(int is_supported) |
fe08bc4b | 9881 | { |
a5763f22 | 9882 | static char text_unsupported[] __initdata = "not supported"; |
fe08bc4b | 9883 | |
72a979f0 | 9884 | return (is_supported) ? &text_unsupported[4] : &text_unsupported[0]; |
fe08bc4b HMH |
9885 | } |
9886 | #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ | |
9887 | ||
b21a15f6 HMH |
9888 | static void ibm_exit(struct ibm_struct *ibm) |
9889 | { | |
9890 | dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); | |
9891 | ||
9892 | list_del_init(&ibm->all_drivers); | |
9893 | ||
9894 | if (ibm->flags.acpi_notify_installed) { | |
9895 | dbg_printk(TPACPI_DBG_EXIT, | |
9896 | "%s: acpi_remove_notify_handler\n", ibm->name); | |
9897 | BUG_ON(!ibm->acpi); | |
9898 | acpi_remove_notify_handler(*ibm->acpi->handle, | |
9899 | ibm->acpi->type, | |
9900 | dispatch_acpi_notify); | |
9901 | ibm->flags.acpi_notify_installed = 0; | |
b21a15f6 HMH |
9902 | } |
9903 | ||
9904 | if (ibm->flags.proc_created) { | |
9905 | dbg_printk(TPACPI_DBG_EXIT, | |
9906 | "%s: remove_proc_entry\n", ibm->name); | |
9907 | remove_proc_entry(ibm->name, proc_dir); | |
9908 | ibm->flags.proc_created = 0; | |
9909 | } | |
9910 | ||
9911 | if (ibm->flags.acpi_driver_registered) { | |
9912 | dbg_printk(TPACPI_DBG_EXIT, | |
9913 | "%s: acpi_bus_unregister_driver\n", ibm->name); | |
9914 | BUG_ON(!ibm->acpi); | |
9915 | acpi_bus_unregister_driver(ibm->acpi->driver); | |
9916 | kfree(ibm->acpi->driver); | |
9917 | ibm->acpi->driver = NULL; | |
9918 | ibm->flags.acpi_driver_registered = 0; | |
9919 | } | |
9920 | ||
9921 | if (ibm->flags.init_called && ibm->exit) { | |
9922 | ibm->exit(); | |
9923 | ibm->flags.init_called = 0; | |
9924 | } | |
9925 | ||
9926 | dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); | |
9927 | } | |
f74a27d4 | 9928 | |
a5763f22 | 9929 | static int __init ibm_init(struct ibm_init_struct *iibm) |
1da177e4 LT |
9930 | { |
9931 | int ret; | |
a5763f22 | 9932 | struct ibm_struct *ibm = iibm->data; |
1da177e4 LT |
9933 | struct proc_dir_entry *entry; |
9934 | ||
a5763f22 HMH |
9935 | BUG_ON(ibm == NULL); |
9936 | ||
9937 | INIT_LIST_HEAD(&ibm->all_drivers); | |
9938 | ||
92641177 | 9939 | if (ibm->flags.experimental && !experimental) |
1da177e4 LT |
9940 | return 0; |
9941 | ||
fe08bc4b HMH |
9942 | dbg_printk(TPACPI_DBG_INIT, |
9943 | "probing for %s\n", ibm->name); | |
9944 | ||
a5763f22 HMH |
9945 | if (iibm->init) { |
9946 | ret = iibm->init(iibm); | |
5fba344c HMH |
9947 | if (ret > 0) |
9948 | return 0; /* probe failed */ | |
9949 | if (ret) | |
1da177e4 | 9950 | return ret; |
a5763f22 | 9951 | |
92641177 | 9952 | ibm->flags.init_called = 1; |
1da177e4 LT |
9953 | } |
9954 | ||
8d376cd6 HMH |
9955 | if (ibm->acpi) { |
9956 | if (ibm->acpi->hid) { | |
9957 | ret = register_tpacpi_subdriver(ibm); | |
9958 | if (ret) | |
9959 | goto err_out; | |
9960 | } | |
5fba344c | 9961 | |
8d376cd6 HMH |
9962 | if (ibm->acpi->notify) { |
9963 | ret = setup_acpi_notify(ibm); | |
9964 | if (ret == -ENODEV) { | |
0978e012 JP |
9965 | pr_notice("disabling subdriver %s\n", |
9966 | ibm->name); | |
8d376cd6 HMH |
9967 | ret = 0; |
9968 | goto err_out; | |
9969 | } | |
9970 | if (ret < 0) | |
9971 | goto err_out; | |
5fba344c | 9972 | } |
5fba344c HMH |
9973 | } |
9974 | ||
fe08bc4b HMH |
9975 | dbg_printk(TPACPI_DBG_INIT, |
9976 | "%s installed\n", ibm->name); | |
9977 | ||
78f81cc4 | 9978 | if (ibm->read) { |
d161a13f | 9979 | umode_t mode = iibm->base_procfs_mode; |
887965e6 | 9980 | |
b525c06c HMH |
9981 | if (!mode) |
9982 | mode = S_IRUGO; | |
887965e6 AD |
9983 | if (ibm->write) |
9984 | mode |= S_IWUSR; | |
9985 | entry = proc_create_data(ibm->name, mode, proc_dir, | |
97a32539 | 9986 | &dispatch_proc_ops, ibm); |
78f81cc4 | 9987 | if (!entry) { |
0978e012 | 9988 | pr_err("unable to create proc entry %s\n", ibm->name); |
5fba344c HMH |
9989 | ret = -ENODEV; |
9990 | goto err_out; | |
78f81cc4 | 9991 | } |
92641177 | 9992 | ibm->flags.proc_created = 1; |
78f81cc4 | 9993 | } |
1da177e4 | 9994 | |
a5763f22 HMH |
9995 | list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); |
9996 | ||
1da177e4 | 9997 | return 0; |
5fba344c HMH |
9998 | |
9999 | err_out: | |
fe08bc4b HMH |
10000 | dbg_printk(TPACPI_DBG_INIT, |
10001 | "%s: at error exit path with result %d\n", | |
10002 | ibm->name, ret); | |
10003 | ||
5fba344c | 10004 | ibm_exit(ibm); |
72a979f0 | 10005 | return (ret < 0) ? ret : 0; |
1da177e4 LT |
10006 | } |
10007 | ||
56b6aeb0 HMH |
10008 | /* Probing */ |
10009 | ||
846a416b JW |
10010 | static char __init tpacpi_parse_fw_id(const char * const s, |
10011 | u32 *model, u16 *release) | |
050df107 | 10012 | { |
846a416b JW |
10013 | int i; |
10014 | ||
10015 | if (!s || strlen(s) < 8) | |
10016 | goto invalid; | |
10017 | ||
10018 | for (i = 0; i < 8; i++) | |
10019 | if (!((s[i] >= '0' && s[i] <= '9') || | |
10020 | (s[i] >= 'A' && s[i] <= 'Z'))) | |
10021 | goto invalid; | |
050df107 | 10022 | |
1b0eb5bc AL |
10023 | /* |
10024 | * Most models: xxyTkkWW (#.##c) | |
10025 | * Ancient 570/600 and -SL lacks (#.##c) | |
10026 | */ | |
846a416b JW |
10027 | if (s[3] == 'T' || s[3] == 'N') { |
10028 | *model = TPID(s[0], s[1]); | |
10029 | *release = TPVER(s[4], s[5]); | |
10030 | return s[2]; | |
1b0eb5bc AL |
10031 | |
10032 | /* New models: xxxyTkkW (#.##c); T550 and some others */ | |
846a416b JW |
10033 | } else if (s[4] == 'T' || s[4] == 'N') { |
10034 | *model = TPID3(s[0], s[1], s[2]); | |
10035 | *release = TPVER(s[5], s[6]); | |
10036 | return s[3]; | |
10037 | } | |
10038 | ||
10039 | invalid: | |
10040 | return '\0'; | |
050df107 HMH |
10041 | } |
10042 | ||
9a4b33d4 JY |
10043 | static void find_new_ec_fwstr(const struct dmi_header *dm, void *private) |
10044 | { | |
10045 | char *ec_fw_string = (char *) private; | |
10046 | const char *dmi_data = (const char *)dm; | |
10047 | /* | |
10048 | * ThinkPad Embedded Controller Program Table on newer models | |
10049 | * | |
10050 | * Offset | Name | Width | Description | |
10051 | * ---------------------------------------------------- | |
10052 | * 0x00 | Type | BYTE | 0x8C | |
10053 | * 0x01 | Length | BYTE | | |
10054 | * 0x02 | Handle | WORD | Varies | |
10055 | * 0x04 | Signature | BYTEx6 | ASCII for "LENOVO" | |
10056 | * 0x0A | OEM struct offset | BYTE | 0x0B | |
10057 | * 0x0B | OEM struct number | BYTE | 0x07, for this structure | |
10058 | * 0x0C | OEM struct revision | BYTE | 0x01, for this format | |
10059 | * 0x0D | ECP version ID | STR ID | | |
10060 | * 0x0E | ECP release date | STR ID | | |
10061 | */ | |
10062 | ||
10063 | /* Return if data structure not match */ | |
10064 | if (dm->type != 140 || dm->length < 0x0F || | |
10065 | memcmp(dmi_data + 4, "LENOVO", 6) != 0 || | |
10066 | dmi_data[0x0A] != 0x0B || dmi_data[0x0B] != 0x07 || | |
10067 | dmi_data[0x0C] != 0x01) | |
10068 | return; | |
10069 | ||
10070 | /* fwstr is the first 8byte string */ | |
10071 | strncpy(ec_fw_string, dmi_data + 0x0F, 8); | |
10072 | } | |
10073 | ||
bf20e740 HMH |
10074 | /* returns 0 - probe ok, or < 0 - probe error. |
10075 | * Probe ok doesn't mean thinkpad found. | |
10076 | * On error, kfree() cleanup on tp->* is not performed, caller must do it */ | |
10077 | static int __must_check __init get_thinkpad_model_data( | |
10078 | struct thinkpad_id_data *tp) | |
1da177e4 | 10079 | { |
1855256c | 10080 | const struct dmi_device *dev = NULL; |
9a4b33d4 | 10081 | char ec_fw_string[18] = {0}; |
bf20e740 | 10082 | char const *s; |
846a416b | 10083 | char t; |
1da177e4 | 10084 | |
d5a2f2f1 | 10085 | if (!tp) |
bf20e740 | 10086 | return -EINVAL; |
d5a2f2f1 HMH |
10087 | |
10088 | memset(tp, 0, sizeof(*tp)); | |
10089 | ||
10090 | if (dmi_name_in_vendors("IBM")) | |
10091 | tp->vendor = PCI_VENDOR_ID_IBM; | |
10092 | else if (dmi_name_in_vendors("LENOVO")) | |
10093 | tp->vendor = PCI_VENDOR_ID_LENOVO; | |
10094 | else | |
bf20e740 | 10095 | return 0; |
d5a2f2f1 | 10096 | |
bf20e740 HMH |
10097 | s = dmi_get_system_info(DMI_BIOS_VERSION); |
10098 | tp->bios_version_str = kstrdup(s, GFP_KERNEL); | |
10099 | if (s && !tp->bios_version_str) | |
10100 | return -ENOMEM; | |
050df107 HMH |
10101 | |
10102 | /* Really ancient ThinkPad 240X will fail this, which is fine */ | |
846a416b JW |
10103 | t = tpacpi_parse_fw_id(tp->bios_version_str, |
10104 | &tp->bios_model, &tp->bios_release); | |
10105 | if (t != 'E' && t != 'C') | |
bf20e740 | 10106 | return 0; |
050df107 | 10107 | |
56b6aeb0 HMH |
10108 | /* |
10109 | * ThinkPad T23 or newer, A31 or newer, R50e or newer, | |
10110 | * X32 or newer, all Z series; Some models must have an | |
10111 | * up-to-date BIOS or they will not be detected. | |
10112 | * | |
10113 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
10114 | */ | |
10115 | while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { | |
10116 | if (sscanf(dev->name, | |
10117 | "IBM ThinkPad Embedded Controller -[%17c", | |
10118 | ec_fw_string) == 1) { | |
10119 | ec_fw_string[sizeof(ec_fw_string) - 1] = 0; | |
10120 | ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; | |
d5a2f2f1 | 10121 | break; |
78f81cc4 | 10122 | } |
1da177e4 | 10123 | } |
d5a2f2f1 | 10124 | |
9a4b33d4 JY |
10125 | /* Newer ThinkPads have different EC program info table */ |
10126 | if (!ec_fw_string[0]) | |
10127 | dmi_walk(find_new_ec_fwstr, &ec_fw_string); | |
10128 | ||
10129 | if (ec_fw_string[0]) { | |
10130 | tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); | |
10131 | if (!tp->ec_version_str) | |
10132 | return -ENOMEM; | |
10133 | ||
10134 | t = tpacpi_parse_fw_id(ec_fw_string, | |
10135 | &tp->ec_model, &tp->ec_release); | |
10136 | if (t != 'H') { | |
10137 | pr_notice("ThinkPad firmware release %s doesn't match the known patterns\n", | |
10138 | ec_fw_string); | |
10139 | pr_notice("please report this to %s\n", TPACPI_MAIL); | |
10140 | } | |
10141 | } | |
10142 | ||
bf20e740 | 10143 | s = dmi_get_system_info(DMI_PRODUCT_VERSION); |
40f5c777 | 10144 | if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) { |
bf20e740 HMH |
10145 | tp->model_str = kstrdup(s, GFP_KERNEL); |
10146 | if (!tp->model_str) | |
10147 | return -ENOMEM; | |
a4f46bb9 MI |
10148 | } else { |
10149 | s = dmi_get_system_info(DMI_BIOS_VENDOR); | |
40f5c777 | 10150 | if (s && !(strncasecmp(s, "Lenovo", 6))) { |
a4f46bb9 MI |
10151 | tp->model_str = kstrdup(s, GFP_KERNEL); |
10152 | if (!tp->model_str) | |
10153 | return -ENOMEM; | |
10154 | } | |
d5a2f2f1 | 10155 | } |
8c74adbc | 10156 | |
bf20e740 HMH |
10157 | s = dmi_get_system_info(DMI_PRODUCT_NAME); |
10158 | tp->nummodel_str = kstrdup(s, GFP_KERNEL); | |
10159 | if (s && !tp->nummodel_str) | |
10160 | return -ENOMEM; | |
10161 | ||
10162 | return 0; | |
1da177e4 LT |
10163 | } |
10164 | ||
5fba344c HMH |
10165 | static int __init probe_for_thinkpad(void) |
10166 | { | |
10167 | int is_thinkpad; | |
10168 | ||
10169 | if (acpi_disabled) | |
10170 | return -ENODEV; | |
10171 | ||
e28393c0 HMH |
10172 | /* It would be dangerous to run the driver in this case */ |
10173 | if (!tpacpi_is_ibm() && !tpacpi_is_lenovo()) | |
10174 | return -ENODEV; | |
10175 | ||
5fba344c HMH |
10176 | /* |
10177 | * Non-ancient models have better DMI tagging, but very old models | |
e675abaf | 10178 | * don't. tpacpi_is_fw_known() is a cheat to help in that case. |
5fba344c | 10179 | */ |
e675abaf HMH |
10180 | is_thinkpad = (thinkpad_id.model_str != NULL) || |
10181 | (thinkpad_id.ec_model != 0) || | |
10182 | tpacpi_is_fw_known(); | |
5fba344c | 10183 | |
437e470c HMH |
10184 | /* The EC handler is required */ |
10185 | tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); | |
5fba344c HMH |
10186 | if (!ec_handle) { |
10187 | if (is_thinkpad) | |
0978e012 | 10188 | pr_err("Not yet supported ThinkPad detected!\n"); |
5fba344c HMH |
10189 | return -ENODEV; |
10190 | } | |
10191 | ||
0dcef77c HMH |
10192 | if (!is_thinkpad && !force_load) |
10193 | return -ENODEV; | |
10194 | ||
5fba344c HMH |
10195 | return 0; |
10196 | } | |
10197 | ||
7a43f788 HMH |
10198 | static void __init thinkpad_acpi_init_banner(void) |
10199 | { | |
0978e012 JP |
10200 | pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION); |
10201 | pr_info("%s\n", TPACPI_URL); | |
7a43f788 | 10202 | |
0978e012 | 10203 | pr_info("ThinkPad BIOS %s, EC %s\n", |
7a43f788 HMH |
10204 | (thinkpad_id.bios_version_str) ? |
10205 | thinkpad_id.bios_version_str : "unknown", | |
10206 | (thinkpad_id.ec_version_str) ? | |
10207 | thinkpad_id.ec_version_str : "unknown"); | |
10208 | ||
10209 | BUG_ON(!thinkpad_id.vendor); | |
10210 | ||
10211 | if (thinkpad_id.model_str) | |
0978e012 | 10212 | pr_info("%s %s, model %s\n", |
7a43f788 HMH |
10213 | (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? |
10214 | "IBM" : ((thinkpad_id.vendor == | |
10215 | PCI_VENDOR_ID_LENOVO) ? | |
10216 | "Lenovo" : "Unknown vendor"), | |
10217 | thinkpad_id.model_str, | |
10218 | (thinkpad_id.nummodel_str) ? | |
10219 | thinkpad_id.nummodel_str : "unknown"); | |
10220 | } | |
5fba344c | 10221 | |
56b6aeb0 | 10222 | /* Module init, exit, parameters */ |
1da177e4 | 10223 | |
a5763f22 HMH |
10224 | static struct ibm_init_struct ibms_init[] __initdata = { |
10225 | { | |
a5763f22 HMH |
10226 | .data = &thinkpad_acpi_driver_data, |
10227 | }, | |
10228 | { | |
10229 | .init = hotkey_init, | |
10230 | .data = &hotkey_driver_data, | |
10231 | }, | |
10232 | { | |
10233 | .init = bluetooth_init, | |
10234 | .data = &bluetooth_driver_data, | |
10235 | }, | |
10236 | { | |
10237 | .init = wan_init, | |
10238 | .data = &wan_driver_data, | |
10239 | }, | |
0045c0aa HMH |
10240 | { |
10241 | .init = uwb_init, | |
10242 | .data = &uwb_driver_data, | |
10243 | }, | |
d7c1d17d | 10244 | #ifdef CONFIG_THINKPAD_ACPI_VIDEO |
a5763f22 HMH |
10245 | { |
10246 | .init = video_init, | |
b525c06c | 10247 | .base_procfs_mode = S_IRUSR, |
a5763f22 HMH |
10248 | .data = &video_driver_data, |
10249 | }, | |
d7c1d17d | 10250 | #endif |
bb28f3d5 PR |
10251 | { |
10252 | .init = kbdlight_init, | |
10253 | .data = &kbdlight_driver_data, | |
10254 | }, | |
a5763f22 HMH |
10255 | { |
10256 | .init = light_init, | |
10257 | .data = &light_driver_data, | |
10258 | }, | |
a5763f22 HMH |
10259 | { |
10260 | .init = cmos_init, | |
10261 | .data = &cmos_driver_data, | |
10262 | }, | |
10263 | { | |
10264 | .init = led_init, | |
10265 | .data = &led_driver_data, | |
10266 | }, | |
10267 | { | |
10268 | .init = beep_init, | |
10269 | .data = &beep_driver_data, | |
10270 | }, | |
10271 | { | |
10272 | .init = thermal_init, | |
10273 | .data = &thermal_driver_data, | |
10274 | }, | |
a5763f22 HMH |
10275 | { |
10276 | .init = brightness_init, | |
10277 | .data = &brightness_driver_data, | |
10278 | }, | |
10279 | { | |
329e4e18 | 10280 | .init = volume_init, |
a5763f22 HMH |
10281 | .data = &volume_driver_data, |
10282 | }, | |
10283 | { | |
10284 | .init = fan_init, | |
10285 | .data = &fan_driver_data, | |
10286 | }, | |
420f9739 DH |
10287 | { |
10288 | .init = mute_led_init, | |
10289 | .data = &mute_led_driver_data, | |
10290 | }, | |
2801b968 OG |
10291 | { |
10292 | .init = tpacpi_battery_init, | |
10293 | .data = &battery_driver_data, | |
10294 | }, | |
110ea1d8 AS |
10295 | { |
10296 | .init = tpacpi_lcdshadow_init, | |
10297 | .data = &lcdshadow_driver_data, | |
10298 | }, | |
a5763f22 HMH |
10299 | }; |
10300 | ||
e4dca7b7 | 10301 | static int __init set_ibm_param(const char *val, const struct kernel_param *kp) |
1da177e4 LT |
10302 | { |
10303 | unsigned int i; | |
a5763f22 | 10304 | struct ibm_struct *ibm; |
1da177e4 | 10305 | |
59f91ff1 HMH |
10306 | if (!kp || !kp->name || !val) |
10307 | return -EINVAL; | |
10308 | ||
a5763f22 HMH |
10309 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
10310 | ibm = ibms_init[i].data; | |
59f91ff1 HMH |
10311 | WARN_ON(ibm == NULL); |
10312 | ||
10313 | if (!ibm || !ibm->name) | |
10314 | continue; | |
a5763f22 HMH |
10315 | |
10316 | if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { | |
10317 | if (strlen(val) > sizeof(ibms_init[i].param) - 2) | |
78f81cc4 | 10318 | return -ENOSPC; |
a5763f22 HMH |
10319 | strcpy(ibms_init[i].param, val); |
10320 | strcat(ibms_init[i].param, ","); | |
78f81cc4 BD |
10321 | return 0; |
10322 | } | |
a5763f22 | 10323 | } |
1da177e4 | 10324 | |
1da177e4 LT |
10325 | return -EINVAL; |
10326 | } | |
10327 | ||
b09c7225 | 10328 | module_param(experimental, int, 0444); |
f68080f8 | 10329 | MODULE_PARM_DESC(experimental, |
35ff8b9f | 10330 | "Enables experimental features when non-zero"); |
56b6aeb0 | 10331 | |
132ce091 | 10332 | module_param_named(debug, dbg_level, uint, 0); |
f68080f8 | 10333 | MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); |
132ce091 | 10334 | |
b09c7225 | 10335 | module_param(force_load, bool, 0444); |
f68080f8 | 10336 | MODULE_PARM_DESC(force_load, |
5cac62ac | 10337 | "Attempts to load the driver even on a mis-identified ThinkPad when true"); |
0dcef77c | 10338 | |
b09c7225 | 10339 | module_param_named(fan_control, fan_control_allowed, bool, 0444); |
f68080f8 | 10340 | MODULE_PARM_DESC(fan_control, |
35ff8b9f | 10341 | "Enables setting fan parameters features when true"); |
ecf2a80a | 10342 | |
b09c7225 | 10343 | module_param_named(brightness_mode, brightness_mode, uint, 0444); |
f68080f8 | 10344 | MODULE_PARM_DESC(brightness_mode, |
5cac62ac | 10345 | "Selects brightness control strategy: 0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); |
24d3b774 | 10346 | |
b09c7225 | 10347 | module_param(brightness_enable, uint, 0444); |
f68080f8 | 10348 | MODULE_PARM_DESC(brightness_enable, |
35ff8b9f | 10349 | "Enables backlight control when 1, disables when 0"); |
87cc537a | 10350 | |
ff850c33 | 10351 | #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT |
329e4e18 HMH |
10352 | module_param_named(volume_mode, volume_mode, uint, 0444); |
10353 | MODULE_PARM_DESC(volume_mode, | |
5cac62ac | 10354 | "Selects volume control strategy: 0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); |
329e4e18 | 10355 | |
a112ceee HMH |
10356 | module_param_named(volume_capabilities, volume_capabilities, uint, 0444); |
10357 | MODULE_PARM_DESC(volume_capabilities, | |
d33a7e57 | 10358 | "Selects the mixer capabilities: 0=auto, 1=volume and mute, 2=mute only"); |
a112ceee | 10359 | |
c7ac6291 HMH |
10360 | module_param_named(volume_control, volume_control_allowed, bool, 0444); |
10361 | MODULE_PARM_DESC(volume_control, | |
5cac62ac | 10362 | "Enables software override for the console audio control when true"); |
c7ac6291 | 10363 | |
9a417ec0 AL |
10364 | module_param_named(software_mute, software_mute_requested, bool, 0444); |
10365 | MODULE_PARM_DESC(software_mute, | |
10366 | "Request full software mute control"); | |
10367 | ||
0d204c34 HMH |
10368 | /* ALSA module API parameters */ |
10369 | module_param_named(index, alsa_index, int, 0444); | |
10370 | MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); | |
10371 | module_param_named(id, alsa_id, charp, 0444); | |
10372 | MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); | |
10373 | module_param_named(enable, alsa_enable, bool, 0444); | |
10374 | MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); | |
ff850c33 | 10375 | #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ |
0d204c34 | 10376 | |
9b4bbbd2 | 10377 | /* The module parameter can't be read back, that's why 0 is used here */ |
e0c7dfe7 | 10378 | #define TPACPI_PARAM(feature) \ |
f68080f8 | 10379 | module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ |
5cac62ac | 10380 | MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command at module load, see documentation") |
1da177e4 | 10381 | |
e0c7dfe7 HMH |
10382 | TPACPI_PARAM(hotkey); |
10383 | TPACPI_PARAM(bluetooth); | |
10384 | TPACPI_PARAM(video); | |
10385 | TPACPI_PARAM(light); | |
e0c7dfe7 HMH |
10386 | TPACPI_PARAM(cmos); |
10387 | TPACPI_PARAM(led); | |
10388 | TPACPI_PARAM(beep); | |
e0c7dfe7 HMH |
10389 | TPACPI_PARAM(brightness); |
10390 | TPACPI_PARAM(volume); | |
10391 | TPACPI_PARAM(fan); | |
78f81cc4 | 10392 | |
a73f3091 | 10393 | #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES |
b09c7225 | 10394 | module_param(dbg_wlswemul, uint, 0444); |
a73f3091 HMH |
10395 | MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); |
10396 | module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); | |
10397 | MODULE_PARM_DESC(wlsw_state, | |
10398 | "Initial state of the emulated WLSW switch"); | |
10399 | ||
b09c7225 | 10400 | module_param(dbg_bluetoothemul, uint, 0444); |
a73f3091 HMH |
10401 | MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); |
10402 | module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); | |
10403 | MODULE_PARM_DESC(bluetooth_state, | |
10404 | "Initial state of the emulated bluetooth switch"); | |
10405 | ||
b09c7225 | 10406 | module_param(dbg_wwanemul, uint, 0444); |
a73f3091 HMH |
10407 | MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); |
10408 | module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); | |
10409 | MODULE_PARM_DESC(wwan_state, | |
10410 | "Initial state of the emulated WWAN switch"); | |
0045c0aa | 10411 | |
b09c7225 | 10412 | module_param(dbg_uwbemul, uint, 0444); |
0045c0aa HMH |
10413 | MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); |
10414 | module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); | |
10415 | MODULE_PARM_DESC(uwb_state, | |
10416 | "Initial state of the emulated UWB switch"); | |
a73f3091 HMH |
10417 | #endif |
10418 | ||
b21a15f6 HMH |
10419 | static void thinkpad_acpi_module_exit(void) |
10420 | { | |
10421 | struct ibm_struct *ibm, *itmp; | |
10422 | ||
10423 | tpacpi_lifecycle = TPACPI_LIFE_EXITING; | |
10424 | ||
10425 | list_for_each_entry_safe_reverse(ibm, itmp, | |
10426 | &tpacpi_all_drivers, | |
10427 | all_drivers) { | |
10428 | ibm_exit(ibm); | |
10429 | } | |
10430 | ||
10431 | dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); | |
10432 | ||
10433 | if (tpacpi_inputdev) { | |
10434 | if (tp_features.input_device_registered) | |
10435 | input_unregister_device(tpacpi_inputdev); | |
10436 | else | |
10437 | input_free_device(tpacpi_inputdev); | |
00d39597 | 10438 | kfree(hotkey_keycode_map); |
b21a15f6 HMH |
10439 | } |
10440 | ||
10441 | if (tpacpi_hwmon) | |
10442 | hwmon_device_unregister(tpacpi_hwmon); | |
10443 | ||
b21a15f6 HMH |
10444 | if (tpacpi_sensors_pdev) |
10445 | platform_device_unregister(tpacpi_sensors_pdev); | |
10446 | if (tpacpi_pdev) | |
10447 | platform_device_unregister(tpacpi_pdev); | |
10448 | ||
10449 | if (tp_features.sensors_pdrv_attrs_registered) | |
10450 | tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); | |
10451 | if (tp_features.platform_drv_attrs_registered) | |
10452 | tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); | |
10453 | ||
10454 | if (tp_features.sensors_pdrv_registered) | |
10455 | platform_driver_unregister(&tpacpi_hwmon_pdriver); | |
10456 | ||
10457 | if (tp_features.platform_drv_registered) | |
10458 | platform_driver_unregister(&tpacpi_pdriver); | |
10459 | ||
10460 | if (proc_dir) | |
e0c7dfe7 | 10461 | remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); |
b21a15f6 | 10462 | |
e0e3c061 HMH |
10463 | if (tpacpi_wq) |
10464 | destroy_workqueue(tpacpi_wq); | |
10465 | ||
b21a15f6 HMH |
10466 | kfree(thinkpad_id.bios_version_str); |
10467 | kfree(thinkpad_id.ec_version_str); | |
10468 | kfree(thinkpad_id.model_str); | |
d2be15bd | 10469 | kfree(thinkpad_id.nummodel_str); |
b21a15f6 HMH |
10470 | } |
10471 | ||
f74a27d4 | 10472 | |
1def7115 | 10473 | static int __init thinkpad_acpi_module_init(void) |
1da177e4 LT |
10474 | { |
10475 | int ret, i; | |
10476 | ||
8fef502e HMH |
10477 | tpacpi_lifecycle = TPACPI_LIFE_INIT; |
10478 | ||
54ae1501 | 10479 | /* Driver-level probe */ |
d5a2f2f1 | 10480 | |
bf20e740 HMH |
10481 | ret = get_thinkpad_model_data(&thinkpad_id); |
10482 | if (ret) { | |
0978e012 | 10483 | pr_err("unable to get DMI data: %d\n", ret); |
bf20e740 HMH |
10484 | thinkpad_acpi_module_exit(); |
10485 | return ret; | |
10486 | } | |
5fba344c | 10487 | ret = probe_for_thinkpad(); |
d5a2f2f1 HMH |
10488 | if (ret) { |
10489 | thinkpad_acpi_module_exit(); | |
5fba344c | 10490 | return ret; |
d5a2f2f1 | 10491 | } |
1da177e4 | 10492 | |
54ae1501 | 10493 | /* Driver initialization */ |
d5a2f2f1 | 10494 | |
7a43f788 HMH |
10495 | thinkpad_acpi_init_banner(); |
10496 | tpacpi_check_outdated_fw(); | |
10497 | ||
e0c7dfe7 HMH |
10498 | TPACPI_ACPIHANDLE_INIT(ecrd); |
10499 | TPACPI_ACPIHANDLE_INIT(ecwr); | |
1da177e4 | 10500 | |
e0e3c061 HMH |
10501 | tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); |
10502 | if (!tpacpi_wq) { | |
10503 | thinkpad_acpi_module_exit(); | |
10504 | return -ENOMEM; | |
10505 | } | |
10506 | ||
e0c7dfe7 | 10507 | proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); |
1da177e4 | 10508 | if (!proc_dir) { |
0978e012 | 10509 | pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n"); |
1def7115 | 10510 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
10511 | return -ENODEV; |
10512 | } | |
78f81cc4 | 10513 | |
54ae1501 HMH |
10514 | ret = platform_driver_register(&tpacpi_pdriver); |
10515 | if (ret) { | |
0978e012 | 10516 | pr_err("unable to register main platform driver\n"); |
54ae1501 HMH |
10517 | thinkpad_acpi_module_exit(); |
10518 | return ret; | |
10519 | } | |
ac36393d HMH |
10520 | tp_features.platform_drv_registered = 1; |
10521 | ||
7fd40029 HMH |
10522 | ret = platform_driver_register(&tpacpi_hwmon_pdriver); |
10523 | if (ret) { | |
0978e012 | 10524 | pr_err("unable to register hwmon platform driver\n"); |
7fd40029 HMH |
10525 | thinkpad_acpi_module_exit(); |
10526 | return ret; | |
10527 | } | |
10528 | tp_features.sensors_pdrv_registered = 1; | |
10529 | ||
176750d6 | 10530 | ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); |
2369cc94 HMH |
10531 | if (!ret) { |
10532 | tp_features.platform_drv_attrs_registered = 1; | |
35ff8b9f HMH |
10533 | ret = tpacpi_create_driver_attributes( |
10534 | &tpacpi_hwmon_pdriver.driver); | |
2369cc94 | 10535 | } |
176750d6 | 10536 | if (ret) { |
0978e012 | 10537 | pr_err("unable to create sysfs driver attributes\n"); |
176750d6 HMH |
10538 | thinkpad_acpi_module_exit(); |
10539 | return ret; | |
10540 | } | |
2369cc94 | 10541 | tp_features.sensors_pdrv_attrs_registered = 1; |
176750d6 | 10542 | |
54ae1501 HMH |
10543 | |
10544 | /* Device initialization */ | |
e0c7dfe7 | 10545 | tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, |
54ae1501 HMH |
10546 | NULL, 0); |
10547 | if (IS_ERR(tpacpi_pdev)) { | |
10548 | ret = PTR_ERR(tpacpi_pdev); | |
10549 | tpacpi_pdev = NULL; | |
0978e012 | 10550 | pr_err("unable to register platform device\n"); |
54ae1501 HMH |
10551 | thinkpad_acpi_module_exit(); |
10552 | return ret; | |
10553 | } | |
7fd40029 | 10554 | tpacpi_sensors_pdev = platform_device_register_simple( |
35ff8b9f HMH |
10555 | TPACPI_HWMON_DRVR_NAME, |
10556 | -1, NULL, 0); | |
7fd40029 HMH |
10557 | if (IS_ERR(tpacpi_sensors_pdev)) { |
10558 | ret = PTR_ERR(tpacpi_sensors_pdev); | |
10559 | tpacpi_sensors_pdev = NULL; | |
0978e012 | 10560 | pr_err("unable to register hwmon platform device\n"); |
7fd40029 HMH |
10561 | thinkpad_acpi_module_exit(); |
10562 | return ret; | |
10563 | } | |
7fd40029 | 10564 | tp_features.sensors_pdev_attrs_registered = 1; |
6b99e356 SF |
10565 | tpacpi_hwmon = hwmon_device_register_with_groups( |
10566 | &tpacpi_sensors_pdev->dev, TPACPI_NAME, NULL, NULL); | |
10567 | ||
54ae1501 HMH |
10568 | if (IS_ERR(tpacpi_hwmon)) { |
10569 | ret = PTR_ERR(tpacpi_hwmon); | |
10570 | tpacpi_hwmon = NULL; | |
0978e012 | 10571 | pr_err("unable to register hwmon device\n"); |
54ae1501 HMH |
10572 | thinkpad_acpi_module_exit(); |
10573 | return ret; | |
10574 | } | |
8523ed6f | 10575 | mutex_init(&tpacpi_inputdev_send_mutex); |
7f5d1cd6 HMH |
10576 | tpacpi_inputdev = input_allocate_device(); |
10577 | if (!tpacpi_inputdev) { | |
7f5d1cd6 HMH |
10578 | thinkpad_acpi_module_exit(); |
10579 | return -ENOMEM; | |
10580 | } else { | |
10581 | /* Prepare input device, but don't register */ | |
10582 | tpacpi_inputdev->name = "ThinkPad Extra Buttons"; | |
e0c7dfe7 | 10583 | tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; |
7f5d1cd6 | 10584 | tpacpi_inputdev->id.bustype = BUS_HOST; |
e28393c0 | 10585 | tpacpi_inputdev->id.vendor = thinkpad_id.vendor; |
7f5d1cd6 HMH |
10586 | tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; |
10587 | tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; | |
d112ef95 | 10588 | tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; |
7f5d1cd6 | 10589 | } |
77775838 HMH |
10590 | |
10591 | /* Init subdriver dependencies */ | |
10592 | tpacpi_detect_brightness_capabilities(); | |
10593 | ||
10594 | /* Init subdrivers */ | |
a5763f22 HMH |
10595 | for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { |
10596 | ret = ibm_init(&ibms_init[i]); | |
10597 | if (ret >= 0 && *ibms_init[i].param) | |
10598 | ret = ibms_init[i].data->write(ibms_init[i].param); | |
1da177e4 | 10599 | if (ret < 0) { |
1def7115 | 10600 | thinkpad_acpi_module_exit(); |
1da177e4 LT |
10601 | return ret; |
10602 | } | |
10603 | } | |
b589ea4c HMH |
10604 | |
10605 | tpacpi_lifecycle = TPACPI_LIFE_RUNNING; | |
10606 | ||
7f5d1cd6 HMH |
10607 | ret = input_register_device(tpacpi_inputdev); |
10608 | if (ret < 0) { | |
0978e012 | 10609 | pr_err("unable to register input device\n"); |
7f5d1cd6 HMH |
10610 | thinkpad_acpi_module_exit(); |
10611 | return ret; | |
10612 | } else { | |
10613 | tp_features.input_device_registered = 1; | |
10614 | } | |
1da177e4 LT |
10615 | |
10616 | return 0; | |
10617 | } | |
10618 | ||
95e57ab2 HMH |
10619 | MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); |
10620 | ||
922fe097 HMH |
10621 | /* |
10622 | * This will autoload the driver in almost every ThinkPad | |
10623 | * in widespread use. | |
10624 | * | |
10625 | * Only _VERY_ old models, like the 240, 240x and 570 lack | |
10626 | * the HKEY event interface. | |
10627 | */ | |
10628 | MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); | |
10629 | ||
f68080f8 HMH |
10630 | /* |
10631 | * DMI matching for module autoloading | |
10632 | * | |
10633 | * See http://thinkwiki.org/wiki/List_of_DMI_IDs | |
10634 | * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads | |
10635 | * | |
10636 | * Only models listed in thinkwiki will be supported, so add yours | |
10637 | * if it is not there yet. | |
10638 | */ | |
10639 | #define IBM_BIOS_MODULE_ALIAS(__type) \ | |
b36a50f9 | 10640 | MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") |
f68080f8 | 10641 | |
f68080f8 HMH |
10642 | /* Ancient thinkpad BIOSes have to be identified by |
10643 | * BIOS type or model number, and there are far less | |
10644 | * BIOS types than model numbers... */ | |
922fe097 | 10645 | IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ |
f68080f8 | 10646 | |
f68f53a2 HMH |
10647 | MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); |
10648 | MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); | |
e0c7dfe7 HMH |
10649 | MODULE_DESCRIPTION(TPACPI_DESC); |
10650 | MODULE_VERSION(TPACPI_VERSION); | |
f68080f8 HMH |
10651 | MODULE_LICENSE("GPL"); |
10652 | ||
1def7115 HMH |
10653 | module_init(thinkpad_acpi_module_init); |
10654 | module_exit(thinkpad_acpi_module_exit); |