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[people/arne_f/kernel.git] / drivers / platform / x86 / acer-wmi.c
CommitLineData
745a5d21
CC		 1/*
2 * Acer WMI Laptop Extras
3 *
4f0175dc 4 * Copyright (C) 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
745a5d21
CC		 5 *
6 * Based on acer_acpi:
7 * Copyright (C) 2005-2007 E.M. Smith
8 * Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 */
24
cae15702
LCY		 25#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26
745a5d21
CC		 27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/init.h>
30#include <linux/types.h>
31#include <linux/dmi.h>
f2b585b4 32#include <linux/fb.h>
745a5d21
CC		 33#include <linux/backlight.h>
34#include <linux/leds.h>
35#include <linux/platform_device.h>
36#include <linux/acpi.h>
37#include <linux/i8042.h>
0606e1ab
CC		 38#include <linux/rfkill.h>
39#include <linux/workqueue.h>
81143522 40#include <linux/debugfs.h>
5a0e3ad6 41#include <linux/slab.h>
3fdca87d
LCY		 42#include <linux/input.h>
43#include <linux/input/sparse-keymap.h>
745a5d21
CC		 44
45#include <acpi/acpi_drivers.h>
46
47MODULE_AUTHOR("Carlos Corbacho");
48MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
49MODULE_LICENSE("GPL");
50
745a5d21
CC		 51/*
52 * Magic Number
53 * Meaning is unknown - this number is required for writing to ACPI for AMW0
54 * (it's also used in acerhk when directly accessing the BIOS)
55 */
56#define ACER_AMW0_WRITE 0x9610
57
58/*
59 * Bit masks for the AMW0 interface
60 */
61#define ACER_AMW0_WIRELESS_MASK 0x35
62#define ACER_AMW0_BLUETOOTH_MASK 0x34
63#define ACER_AMW0_MAILLED_MASK 0x31
64
65/*
66 * Method IDs for WMID interface
67 */
68#define ACER_WMID_GET_WIRELESS_METHODID 1
69#define ACER_WMID_GET_BLUETOOTH_METHODID 2
70#define ACER_WMID_GET_BRIGHTNESS_METHODID 3
71#define ACER_WMID_SET_WIRELESS_METHODID 4
72#define ACER_WMID_SET_BLUETOOTH_METHODID 5
73#define ACER_WMID_SET_BRIGHTNESS_METHODID 6
74#define ACER_WMID_GET_THREEG_METHODID 10
75#define ACER_WMID_SET_THREEG_METHODID 11
76
77/*
78 * Acer ACPI method GUIDs
79 */
80#define AMW0_GUID1 "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
5753dd53 81#define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
bbb70607 82#define WMID_GUID1 "6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3"
298f19b2 83#define WMID_GUID2 "95764E09-FB56-4E83-B31A-37761F60994A"
b3c9092b 84#define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
745a5d21 85
3fdca87d
LCY		 86/*
87 * Acer ACPI event GUIDs
88 */
89#define ACERWMID_EVENT_GUID "676AA15E-6A47-4D9F-A2CC-1E6D18D14026"
90
745a5d21 91MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
08a0799d 92MODULE_ALIAS("wmi:6AF4F258-B401-42FD-BE91-3D4AC2D7C0D3");
3fdca87d
LCY		 93MODULE_ALIAS("wmi:676AA15E-6A47-4D9F-A2CC-1E6D18D14026");
94
95enum acer_wmi_event_ids {
96 WMID_HOTKEY_EVENT = 0x1,
97};
98
99static const struct key_entry acer_wmi_keymap[] = {
100 {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
8ae68de1 101 {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
1a04d8ff 102 {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
3fdca87d
LCY		 103 {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */
104 {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */
105 {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */
106 {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */
107 {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */
8ae68de1
MF		 108 {KE_IGNORE, 0x41, {KEY_MUTE} },
109 {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
110 {KE_IGNORE, 0x43, {KEY_NEXTSONG} },
111 {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} },
112 {KE_IGNORE, 0x45, {KEY_STOP} },
113 {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
114 {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
115 {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
116 {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
117 {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
3fdca87d 118 {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
8ae68de1 119 {KE_IGNORE, 0x81, {KEY_SLEEP} },
8941178e 120 {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad On/Off */
8ae68de1 121 {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
3fdca87d
LCY		 122 {KE_END, 0}
123};
124
125static struct input_dev *acer_wmi_input_dev;
126
127struct event_return_value {
128 u8 function;
129 u8 key_num;
130 u16 device_state;
131 u32 reserved;
132} __attribute__((packed));
745a5d21 133
b3c9092b
LCY		 134/*
135 * GUID3 Get Device Status device flags
136 */
6c3df88f 137#define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */
b3c9092b 138#define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */
6d88ff0f 139#define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */
6c3df88f 140#define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
b3c9092b 141
59ccf2f3
FLCY		 142struct lm_input_params {
143 u8 function_num; /* Function Number */
144 u16 commun_devices; /* Communication type devices default status */
145 u16 devices; /* Other type devices default status */
146 u8 lm_status; /* Launch Manager Status */
147 u16 reserved;
148} __attribute__((packed));
149
150struct lm_return_value {
151 u8 error_code; /* Error Code */
152 u8 ec_return_value; /* EC Return Value */
153 u16 reserved;
154} __attribute__((packed));
155
b3c9092b
LCY		 156struct wmid3_gds_input_param { /* Get Device Status input parameter */
157 u8 function_num; /* Function Number */
158 u8 hotkey_number; /* Hotkey Number */
159 u16 devices; /* Get Device */
160} __attribute__((packed));
161
162struct wmid3_gds_return_value { /* Get Device Status return value*/
163 u8 error_code; /* Error Code */
164 u8 ec_return_value; /* EC Return Value */
165 u16 devices; /* Current Device Status */
166 u32 reserved;
167} __attribute__((packed));
168
6c3df88f
LCY		 169struct hotkey_function_type_aa {
170 u8 type;
171 u8 length;
172 u16 handle;
173 u16 commun_func_bitmap;
174} __attribute__((packed));
175
745a5d21
CC		 176/*
177 * Interface capability flags
178 */
179#define ACER_CAP_MAILLED (1<<0)
180#define ACER_CAP_WIRELESS (1<<1)
181#define ACER_CAP_BLUETOOTH (1<<2)
182#define ACER_CAP_BRIGHTNESS (1<<3)
183#define ACER_CAP_THREEG (1<<4)
184#define ACER_CAP_ANY (0xFFFFFFFF)
185
186/*
187 * Interface type flags
188 */
189enum interface_flags {
190 ACER_AMW0,
191 ACER_AMW0_V2,
192 ACER_WMID,
72e71de1 193 ACER_WMID_v2,
745a5d21
CC		 194};
195
196#define ACER_DEFAULT_WIRELESS 0
197#define ACER_DEFAULT_BLUETOOTH 0
198#define ACER_DEFAULT_MAILLED 0
199#define ACER_DEFAULT_THREEG 0
200
201static int max_brightness = 0xF;
202
745a5d21
CC		 203static int mailled = -1;
204static int brightness = -1;
205static int threeg = -1;
206static int force_series;
59ccf2f3 207static bool ec_raw_mode;
6c3df88f 208static bool has_type_aa;
1d1fc8a7 209static u16 commun_func_bitmap;
745a5d21
CC		 210
211module_param(mailled, int, 0444);
745a5d21
CC		 212module_param(brightness, int, 0444);
213module_param(threeg, int, 0444);
214module_param(force_series, int, 0444);
59ccf2f3 215module_param(ec_raw_mode, bool, 0444);
745a5d21
CC		 216MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
217MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
218MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
219MODULE_PARM_DESC(force_series, "Force a different laptop series");
59ccf2f3 220MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
745a5d21
CC		 221
222struct acer_data {
223 int mailled;
745a5d21
CC		 224 int threeg;
225 int brightness;
226};
227
81143522
CC		 228struct acer_debug {
229 struct dentry *root;
230 struct dentry *devices;
231 u32 wmid_devices;
232};
233
0606e1ab
CC		 234static struct rfkill *wireless_rfkill;
235static struct rfkill *bluetooth_rfkill;
b3c9092b 236static struct rfkill *threeg_rfkill;
8215af01 237static bool rfkill_inited;
0606e1ab 238
745a5d21
CC		 239/* Each low-level interface must define at least some of the following */
240struct wmi_interface {
241 /* The WMI device type */
242 u32 type;
243
244 /* The capabilities this interface provides */
245 u32 capability;
246
247 /* Private data for the current interface */
248 struct acer_data data;
81143522
CC		 249
250 /* debugfs entries associated with this interface */
251 struct acer_debug debug;
745a5d21
CC		 252};
253
254/* The static interface pointer, points to the currently detected interface */
255static struct wmi_interface *interface;
256
257/*
258 * Embedded Controller quirks
259 * Some laptops require us to directly access the EC to either enable or query
260 * features that are not available through WMI.
261 */
262
263struct quirk_entry {
264 u8 wireless;
265 u8 mailled;
9991d9f2 266 s8 brightness;
745a5d21
CC		 267 u8 bluetooth;
268};
269
270static struct quirk_entry *quirks;
271
272static void set_quirks(void)
273{
83097aca
AV		 274 if (!interface)
275 return;
276
745a5d21
CC		 277 if (quirks->mailled)
278 interface->capability |= ACER_CAP_MAILLED;
279
280 if (quirks->brightness)
281 interface->capability |= ACER_CAP_BRIGHTNESS;
282}
283
284static int dmi_matched(const struct dmi_system_id *dmi)
285{
286 quirks = dmi->driver_data;
d53bf0f3 287 return 1;
745a5d21
CC		 288}
289
290static struct quirk_entry quirk_unknown = {
291};
292
9991d9f2
CC		 293static struct quirk_entry quirk_acer_aspire_1520 = {
294 .brightness = -1,
295};
296
745a5d21
CC		 297static struct quirk_entry quirk_acer_travelmate_2490 = {
298 .mailled = 1,
299};
300
301/* This AMW0 laptop has no bluetooth */
302static struct quirk_entry quirk_medion_md_98300 = {
303 .wireless = 1,
304};
305
6f061ab5
CC		 306static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
307 .wireless = 2,
308};
309
15b956a0
LCY		 310static struct quirk_entry quirk_lenovo_ideapad_s205 = {
311 .wireless = 3,
312};
313
a74dd5fd
CC		 314/* The Aspire One has a dummy ACPI-WMI interface - disable it */
315static struct dmi_system_id __devinitdata acer_blacklist[] = {
316 {
317 .ident = "Acer Aspire One (SSD)",
318 .matches = {
319 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
320 DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
321 },
322 },
323 {
324 .ident = "Acer Aspire One (HDD)",
325 .matches = {
326 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
327 DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
328 },
329 },
330 {}
331};
332
745a5d21 333static struct dmi_system_id acer_quirks[] = {
9991d9f2
CC		 334 {
335 .callback = dmi_matched,
336 .ident = "Acer Aspire 1360",
337 .matches = {
338 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
339 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
340 },
341 .driver_data = &quirk_acer_aspire_1520,
342 },
343 {
344 .callback = dmi_matched,
345 .ident = "Acer Aspire 1520",
346 .matches = {
347 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
348 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
349 },
350 .driver_data = &quirk_acer_aspire_1520,
351 },
745a5d21
CC		 352 {
353 .callback = dmi_matched,
354 .ident = "Acer Aspire 3100",
355 .matches = {
356 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
357 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
358 },
359 .driver_data = &quirk_acer_travelmate_2490,
360 },
ed9cfe98
CC		 361 {
362 .callback = dmi_matched,
363 .ident = "Acer Aspire 3610",
364 .matches = {
365 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
366 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
367 },
368 .driver_data = &quirk_acer_travelmate_2490,
369 },
745a5d21
CC		 370 {
371 .callback = dmi_matched,
372 .ident = "Acer Aspire 5100",
373 .matches = {
374 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
375 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
376 },
377 .driver_data = &quirk_acer_travelmate_2490,
378 },
ed9cfe98
CC		 379 {
380 .callback = dmi_matched,
381 .ident = "Acer Aspire 5610",
382 .matches = {
383 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
384 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
385 },
386 .driver_data = &quirk_acer_travelmate_2490,
387 },
745a5d21
CC		 388 {
389 .callback = dmi_matched,
390 .ident = "Acer Aspire 5630",
391 .matches = {
392 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
393 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
394 },
395 .driver_data = &quirk_acer_travelmate_2490,
396 },
397 {
398 .callback = dmi_matched,
399 .ident = "Acer Aspire 5650",
400 .matches = {
401 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
402 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
403 },
404 .driver_data = &quirk_acer_travelmate_2490,
405 },
406 {
407 .callback = dmi_matched,
408 .ident = "Acer Aspire 5680",
409 .matches = {
410 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
411 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
412 },
413 .driver_data = &quirk_acer_travelmate_2490,
414 },
415 {
416 .callback = dmi_matched,
417 .ident = "Acer Aspire 9110",
418 .matches = {
419 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
420 DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
421 },
422 .driver_data = &quirk_acer_travelmate_2490,
423 },
424 {
425 .callback = dmi_matched,
426 .ident = "Acer TravelMate 2490",
427 .matches = {
428 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
429 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
430 },
431 .driver_data = &quirk_acer_travelmate_2490,
432 },
262ee35b
CC		 433 {
434 .callback = dmi_matched,
435 .ident = "Acer TravelMate 4200",
436 .matches = {
437 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
438 DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4200"),
439 },
440 .driver_data = &quirk_acer_travelmate_2490,
441 },
6f061ab5
CC		 442 {
443 .callback = dmi_matched,
444 .ident = "Fujitsu Siemens Amilo Li 1718",
445 .matches = {
446 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
447 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
448 },
449 .driver_data = &quirk_fujitsu_amilo_li_1718,
450 },
745a5d21
CC		 451 {
452 .callback = dmi_matched,
453 .ident = "Medion MD 98300",
454 .matches = {
455 DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
456 DMI_MATCH(DMI_PRODUCT_NAME, "WAM2030"),
457 },
458 .driver_data = &quirk_medion_md_98300,
459 },
15b956a0
LCY		 460 {
461 .callback = dmi_matched,
462 .ident = "Lenovo Ideapad S205",
463 .matches = {
464 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
465 DMI_MATCH(DMI_PRODUCT_NAME, "10382LG"),
466 },
467 .driver_data = &quirk_lenovo_ideapad_s205,
468 },
be3128b1
SF		 469 {
470 .callback = dmi_matched,
471 .ident = "Lenovo 3000 N200",
472 .matches = {
473 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
474 DMI_MATCH(DMI_PRODUCT_NAME, "0687A31"),
475 },
476 .driver_data = &quirk_fujitsu_amilo_li_1718,
477 },
745a5d21
CC		 478 {}
479};
480
481/* Find which quirks are needed for a particular vendor/ model pair */
482static void find_quirks(void)
483{
484 if (!force_series) {
485 dmi_check_system(acer_quirks);
486 } else if (force_series == 2490) {
487 quirks = &quirk_acer_travelmate_2490;
488 }
489
490 if (quirks == NULL)
491 quirks = &quirk_unknown;
492
493 set_quirks();
494}
495
496/*
497 * General interface convenience methods
498 */
499
500static bool has_cap(u32 cap)
501{
502 if ((interface->capability & cap) != 0)
503 return 1;
504
505 return 0;
506}
507
508/*
509 * AMW0 (V1) interface
510 */
511struct wmab_args {
512 u32 eax;
513 u32 ebx;
514 u32 ecx;
515 u32 edx;
516};
517
518struct wmab_ret {
519 u32 eax;
520 u32 ebx;
521 u32 ecx;
522 u32 edx;
523 u32 eex;
524};
525
526static acpi_status wmab_execute(struct wmab_args *regbuf,
527struct acpi_buffer *result)
528{
529 struct acpi_buffer input;
530 acpi_status status;
531 input.length = sizeof(struct wmab_args);
532 input.pointer = (u8 *)regbuf;
533
534 status = wmi_evaluate_method(AMW0_GUID1, 1, 1, &input, result);
535
536 return status;
537}
538
38db157d 539static acpi_status AMW0_get_u32(u32 *value, u32 cap)
745a5d21
CC		 540{
541 int err;
542 u8 result;
543
544 switch (cap) {
545 case ACER_CAP_MAILLED:
546 switch (quirks->mailled) {
547 default:
548 err = ec_read(0xA, &result);
549 if (err)
550 return AE_ERROR;
551 *value = (result >> 7) & 0x1;
552 return AE_OK;
553 }
554 break;
555 case ACER_CAP_WIRELESS:
556 switch (quirks->wireless) {
557 case 1:
558 err = ec_read(0x7B, &result);
559 if (err)
560 return AE_ERROR;
561 *value = result & 0x1;
562 return AE_OK;
6f061ab5
CC		 563 case 2:
564 err = ec_read(0x71, &result);
565 if (err)
566 return AE_ERROR;
567 *value = result & 0x1;
568 return AE_OK;
15b956a0
LCY		 569 case 3:
570 err = ec_read(0x78, &result);
571 if (err)
572 return AE_ERROR;
573 *value = result & 0x1;
574 return AE_OK;
745a5d21
CC		 575 default:
576 err = ec_read(0xA, &result);
577 if (err)
578 return AE_ERROR;
579 *value = (result >> 2) & 0x1;
580 return AE_OK;
581 }
582 break;
583 case ACER_CAP_BLUETOOTH:
584 switch (quirks->bluetooth) {
585 default:
586 err = ec_read(0xA, &result);
587 if (err)
588 return AE_ERROR;
589 *value = (result >> 4) & 0x1;
590 return AE_OK;
591 }
592 break;
593 case ACER_CAP_BRIGHTNESS:
594 switch (quirks->brightness) {
595 default:
596 err = ec_read(0x83, &result);
597 if (err)
598 return AE_ERROR;
599 *value = result;
600 return AE_OK;
601 }
602 break;
603 default:
08237974 604 return AE_ERROR;
745a5d21
CC		 605 }
606 return AE_OK;
607}
608
38db157d 609static acpi_status AMW0_set_u32(u32 value, u32 cap)
745a5d21
CC		 610{
611 struct wmab_args args;
612
613 args.eax = ACER_AMW0_WRITE;
614 args.ebx = value ? (1<<8) : 0;
615 args.ecx = args.edx = 0;
616
617 switch (cap) {
618 case ACER_CAP_MAILLED:
619 if (value > 1)
620 return AE_BAD_PARAMETER;
621 args.ebx |= ACER_AMW0_MAILLED_MASK;
622 break;
623 case ACER_CAP_WIRELESS:
624 if (value > 1)
625 return AE_BAD_PARAMETER;
626 args.ebx |= ACER_AMW0_WIRELESS_MASK;
627 break;
628 case ACER_CAP_BLUETOOTH:
629 if (value > 1)
630 return AE_BAD_PARAMETER;
631 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
632 break;
633 case ACER_CAP_BRIGHTNESS:
634 if (value > max_brightness)
635 return AE_BAD_PARAMETER;
636 switch (quirks->brightness) {
745a5d21 637 default:
4609d029
CC		 638 return ec_write(0x83, value);
639 break;
745a5d21
CC		 640 }
641 default:
08237974 642 return AE_ERROR;
745a5d21
CC		 643 }
644
645 /* Actually do the set */
646 return wmab_execute(&args, NULL);
647}
648
649static acpi_status AMW0_find_mailled(void)
650{
651 struct wmab_args args;
652 struct wmab_ret ret;
653 acpi_status status = AE_OK;
654 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
655 union acpi_object *obj;
656
657 args.eax = 0x86;
658 args.ebx = args.ecx = args.edx = 0;
659
660 status = wmab_execute(&args, &out);
661 if (ACPI_FAILURE(status))
662 return status;
663
664 obj = (union acpi_object *) out.pointer;
665 if (obj && obj->type == ACPI_TYPE_BUFFER &&
666 obj->buffer.length == sizeof(struct wmab_ret)) {
667 ret = *((struct wmab_ret *) obj->buffer.pointer);
668 } else {
7677fbdf 669 kfree(out.pointer);
745a5d21
CC		 670 return AE_ERROR;
671 }
672
673 if (ret.eex & 0x1)
674 interface->capability |= ACER_CAP_MAILLED;
675
676 kfree(out.pointer);
677
678 return AE_OK;
679}
680
461e7437
IP		 681static int AMW0_set_cap_acpi_check_device_found;
682
683static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
684 u32 level, void *context, void **retval)
685{
686 AMW0_set_cap_acpi_check_device_found = 1;
687 return AE_OK;
688}
689
690static const struct acpi_device_id norfkill_ids[] = {
691 { "VPC2004", 0},
692 { "IBM0068", 0},
693 { "LEN0068", 0},
694 { "", 0},
695};
696
697static int AMW0_set_cap_acpi_check_device(void)
698{
699 const struct acpi_device_id *id;
700
701 for (id = norfkill_ids; id->id[0]; id++)
702 acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb,
703 NULL, NULL);
704 return AMW0_set_cap_acpi_check_device_found;
705}
706
745a5d21
CC		 707static acpi_status AMW0_set_capabilities(void)
708{
709 struct wmab_args args;
710 struct wmab_ret ret;
7677fbdf 711 acpi_status status;
745a5d21
CC		 712 struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
713 union acpi_object *obj;
714
5753dd53
CC		 715 /*
716 * On laptops with this strange GUID (non Acer), normal probing doesn't
717 * work.
718 */
719 if (wmi_has_guid(AMW0_GUID2)) {
461e7437
IP		 720 if ((quirks != &quirk_unknown) ||
721 !AMW0_set_cap_acpi_check_device())
722 interface->capability |= ACER_CAP_WIRELESS;
5753dd53
CC		 723 return AE_OK;
724 }
725
745a5d21
CC		 726 args.eax = ACER_AMW0_WRITE;
727 args.ecx = args.edx = 0;
728
729 args.ebx = 0xa2 << 8;
730 args.ebx |= ACER_AMW0_WIRELESS_MASK;
731
732 status = wmab_execute(&args, &out);
733 if (ACPI_FAILURE(status))
734 return status;
735
7677fbdf 736 obj = out.pointer;
745a5d21
CC		 737 if (obj && obj->type == ACPI_TYPE_BUFFER &&
738 obj->buffer.length == sizeof(struct wmab_ret)) {
739 ret = *((struct wmab_ret *) obj->buffer.pointer);
740 } else {
7677fbdf
AL		 741 status = AE_ERROR;
742 goto out;
745a5d21
CC		 743 }
744
745 if (ret.eax & 0x1)
746 interface->capability |= ACER_CAP_WIRELESS;
747
748 args.ebx = 2 << 8;
749 args.ebx |= ACER_AMW0_BLUETOOTH_MASK;
750
7677fbdf
AL		 751 /*
752 * It's ok to use existing buffer for next wmab_execute call.
753 * But we need to kfree(out.pointer) if next wmab_execute fail.
754 */
745a5d21
CC		 755 status = wmab_execute(&args, &out);
756 if (ACPI_FAILURE(status))
7677fbdf 757 goto out;
745a5d21
CC		 758
759 obj = (union acpi_object *) out.pointer;
760 if (obj && obj->type == ACPI_TYPE_BUFFER
761 && obj->buffer.length == sizeof(struct wmab_ret)) {
762 ret = *((struct wmab_ret *) obj->buffer.pointer);
763 } else {
7677fbdf
AL		 764 status = AE_ERROR;
765 goto out;
745a5d21
CC		 766 }
767
768 if (ret.eax & 0x1)
769 interface->capability |= ACER_CAP_BLUETOOTH;
770
745a5d21
CC		 771 /*
772 * This appears to be safe to enable, since all Wistron based laptops
773 * appear to use the same EC register for brightness, even if they
774 * differ for wireless, etc
775 */
9991d9f2
CC		 776 if (quirks->brightness >= 0)
777 interface->capability |= ACER_CAP_BRIGHTNESS;
745a5d21 778
7677fbdf
AL		 779 status = AE_OK;
780out:
781 kfree(out.pointer);
782 return status;
745a5d21
CC		 783}
784
785static struct wmi_interface AMW0_interface = {
786 .type = ACER_AMW0,
787};
788
789static struct wmi_interface AMW0_V2_interface = {
790 .type = ACER_AMW0_V2,
791};
792
793/*
794 * New interface (The WMID interface)
795 */
796static acpi_status
797WMI_execute_u32(u32 method_id, u32 in, u32 *out)
798{
799 struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) };
800 struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
801 union acpi_object *obj;
802 u32 tmp;
803 acpi_status status;
804
805 status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result);
806
807 if (ACPI_FAILURE(status))
808 return status;
809
810 obj = (union acpi_object *) result.pointer;
811 if (obj && obj->type == ACPI_TYPE_BUFFER &&
ab6a9316
LCY		 812 (obj->buffer.length == sizeof(u32) ||
813 obj->buffer.length == sizeof(u64))) {
745a5d21 814 tmp = *((u32 *) obj->buffer.pointer);
987dfbaa
LCY		 815 } else if (obj->type == ACPI_TYPE_INTEGER) {
816 tmp = (u32) obj->integer.value;
745a5d21
CC		 817 } else {
818 tmp = 0;
819 }
820
821 if (out)
822 *out = tmp;
823
824 kfree(result.pointer);
825
826 return status;
827}
828
38db157d 829static acpi_status WMID_get_u32(u32 *value, u32 cap)
745a5d21
CC		 830{
831 acpi_status status;
832 u8 tmp;
833 u32 result, method_id = 0;
834
835 switch (cap) {
836 case ACER_CAP_WIRELESS:
837 method_id = ACER_WMID_GET_WIRELESS_METHODID;
838 break;
839 case ACER_CAP_BLUETOOTH:
840 method_id = ACER_WMID_GET_BLUETOOTH_METHODID;
841 break;
842 case ACER_CAP_BRIGHTNESS:
843 method_id = ACER_WMID_GET_BRIGHTNESS_METHODID;
844 break;
845 case ACER_CAP_THREEG:
846 method_id = ACER_WMID_GET_THREEG_METHODID;
847 break;
848 case ACER_CAP_MAILLED:
849 if (quirks->mailled == 1) {
850 ec_read(0x9f, &tmp);
851 *value = tmp & 0x1;
852 return 0;
853 }
854 default:
08237974 855 return AE_ERROR;
745a5d21
CC		 856 }
857 status = WMI_execute_u32(method_id, 0, &result);
858
859 if (ACPI_SUCCESS(status))
860 *value = (u8)result;
861
862 return status;
863}
864
38db157d 865static acpi_status WMID_set_u32(u32 value, u32 cap)
745a5d21
CC		 866{
867 u32 method_id = 0;
868 char param;
869
870 switch (cap) {
871 case ACER_CAP_BRIGHTNESS:
872 if (value > max_brightness)
873 return AE_BAD_PARAMETER;
874 method_id = ACER_WMID_SET_BRIGHTNESS_METHODID;
875 break;
876 case ACER_CAP_WIRELESS:
877 if (value > 1)
878 return AE_BAD_PARAMETER;
879 method_id = ACER_WMID_SET_WIRELESS_METHODID;
880 break;
881 case ACER_CAP_BLUETOOTH:
882 if (value > 1)
883 return AE_BAD_PARAMETER;
884 method_id = ACER_WMID_SET_BLUETOOTH_METHODID;
885 break;
886 case ACER_CAP_THREEG:
887 if (value > 1)
888 return AE_BAD_PARAMETER;
889 method_id = ACER_WMID_SET_THREEG_METHODID;
890 break;
891 case ACER_CAP_MAILLED:
892 if (value > 1)
893 return AE_BAD_PARAMETER;
894 if (quirks->mailled == 1) {
895 param = value ? 0x92 : 0x93;
181d683d 896 i8042_lock_chip();
745a5d21 897 i8042_command(&param, 0x1059);
181d683d 898 i8042_unlock_chip();
745a5d21
CC		 899 return 0;
900 }
901 break;
902 default:
08237974 903 return AE_ERROR;
745a5d21
CC		 904 }
905 return WMI_execute_u32(method_id, (u32)value, NULL);
906}
907
72e71de1
LCY		 908static acpi_status wmid3_get_device_status(u32 *value, u16 device)
909{
910 struct wmid3_gds_return_value return_value;
911 acpi_status status;
912 union acpi_object *obj;
913 struct wmid3_gds_input_param params = {
914 .function_num = 0x1,
915 .hotkey_number = 0x01,
916 .devices = device,
917 };
918 struct acpi_buffer input = {
919 sizeof(struct wmid3_gds_input_param),
920 &params
921 };
922 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
923
924 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
925 if (ACPI_FAILURE(status))
926 return status;
927
928 obj = output.pointer;
929
930 if (!obj)
931 return AE_ERROR;
932 else if (obj->type != ACPI_TYPE_BUFFER) {
933 kfree(obj);
934 return AE_ERROR;
935 }
936 if (obj->buffer.length != 8) {
937 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
938 kfree(obj);
939 return AE_ERROR;
940 }
941
942 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
943 kfree(obj);
944
945 if (return_value.error_code || return_value.ec_return_value)
946 pr_warn("Get 0x%x Device Status failed: 0x%x - 0x%x\n",
947 device,
948 return_value.error_code,
949 return_value.ec_return_value);
950 else
951 *value = !!(return_value.devices & device);
952
953 return status;
954}
955
956static acpi_status wmid_v2_get_u32(u32 *value, u32 cap)
957{
958 u16 device;
959
960 switch (cap) {
961 case ACER_CAP_WIRELESS:
962 device = ACER_WMID3_GDS_WIRELESS;
963 break;
964 case ACER_CAP_BLUETOOTH:
965 device = ACER_WMID3_GDS_BLUETOOTH;
966 break;
967 case ACER_CAP_THREEG:
968 device = ACER_WMID3_GDS_THREEG;
969 break;
970 default:
971 return AE_ERROR;
972 }
973 return wmid3_get_device_status(value, device);
974}
975
976static acpi_status wmid3_set_device_status(u32 value, u16 device)
977{
978 struct wmid3_gds_return_value return_value;
979 acpi_status status;
980 union acpi_object *obj;
981 u16 devices;
982 struct wmid3_gds_input_param params = {
983 .function_num = 0x1,
984 .hotkey_number = 0x01,
1d1fc8a7 985 .devices = commun_func_bitmap,
72e71de1
LCY		 986 };
987 struct acpi_buffer input = {
988 sizeof(struct wmid3_gds_input_param),
989 &params
990 };
991 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
992 struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL };
993
994 status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output);
995 if (ACPI_FAILURE(status))
996 return status;
997
998 obj = output.pointer;
999
1000 if (!obj)
1001 return AE_ERROR;
1002 else if (obj->type != ACPI_TYPE_BUFFER) {
1003 kfree(obj);
1004 return AE_ERROR;
1005 }
1006 if (obj->buffer.length != 8) {
6e71f38b 1007 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
72e71de1
LCY		 1008 kfree(obj);
1009 return AE_ERROR;
1010 }
1011
1012 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1013 kfree(obj);
1014
1015 if (return_value.error_code || return_value.ec_return_value) {
6e71f38b
JP		 1016 pr_warn("Get Current Device Status failed: 0x%x - 0x%x\n",
1017 return_value.error_code,
72e71de1
LCY		 1018 return_value.ec_return_value);
1019 return status;
1020 }
1021
1022 devices = return_value.devices;
1023 params.function_num = 0x2;
1024 params.hotkey_number = 0x01;
1025 params.devices = (value) ? (devices | device) : (devices & ~device);
1026
1027 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output2);
1028 if (ACPI_FAILURE(status))
1029 return status;
1030
1031 obj = output2.pointer;
1032
1033 if (!obj)
1034 return AE_ERROR;
1035 else if (obj->type != ACPI_TYPE_BUFFER) {
1036 kfree(obj);
1037 return AE_ERROR;
1038 }
1039 if (obj->buffer.length != 4) {
6e71f38b 1040 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
72e71de1
LCY		 1041 kfree(obj);
1042 return AE_ERROR;
1043 }
1044
1045 return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer);
1046 kfree(obj);
1047
1048 if (return_value.error_code || return_value.ec_return_value)
6e71f38b
JP		 1049 pr_warn("Set Device Status failed: 0x%x - 0x%x\n",
1050 return_value.error_code,
72e71de1
LCY		 1051 return_value.ec_return_value);
1052
1053 return status;
1054}
1055
1056static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
1057{
1058 u16 device;
1059
1060 switch (cap) {
1061 case ACER_CAP_WIRELESS:
1062 device = ACER_WMID3_GDS_WIRELESS;
1063 break;
1064 case ACER_CAP_BLUETOOTH:
1065 device = ACER_WMID3_GDS_BLUETOOTH;
1066 break;
1067 case ACER_CAP_THREEG:
1068 device = ACER_WMID3_GDS_THREEG;
1069 break;
1070 default:
1071 return AE_ERROR;
1072 }
1073 return wmid3_set_device_status(value, device);
1074}
1075
6c3df88f
LCY		 1076static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
1077{
1078 struct hotkey_function_type_aa *type_aa;
1079
1080 /* We are looking for OEM-specific Type AAh */
1081 if (header->type != 0xAA)
1082 return;
1083
1084 has_type_aa = true;
1085 type_aa = (struct hotkey_function_type_aa *) header;
1086
cae15702 1087 pr_info("Function bitmap for Communication Button: 0x%x\n",
6c3df88f 1088 type_aa->commun_func_bitmap);
1d1fc8a7 1089 commun_func_bitmap = type_aa->commun_func_bitmap;
6c3df88f
LCY		 1090
1091 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_WIRELESS)
1092 interface->capability |= ACER_CAP_WIRELESS;
1093 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_THREEG)
1094 interface->capability |= ACER_CAP_THREEG;
1095 if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH)
1096 interface->capability |= ACER_CAP_BLUETOOTH;
1097}
1098
745a5d21
CC		 1099static acpi_status WMID_set_capabilities(void)
1100{
1101 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1102 union acpi_object *obj;
1103 acpi_status status;
1104 u32 devices;
1105
1106 status = wmi_query_block(WMID_GUID2, 1, &out);
1107 if (ACPI_FAILURE(status))
1108 return status;
1109
1110 obj = (union acpi_object *) out.pointer;
1111 if (obj && obj->type == ACPI_TYPE_BUFFER &&
ab6a9316
LCY		 1112 (obj->buffer.length == sizeof(u32) ||
1113 obj->buffer.length == sizeof(u64))) {
745a5d21 1114 devices = *((u32 *) obj->buffer.pointer);
987dfbaa
LCY		 1115 } else if (obj->type == ACPI_TYPE_INTEGER) {
1116 devices = (u32) obj->integer.value;
745a5d21 1117 } else {
66904863 1118 kfree(out.pointer);
745a5d21
CC		 1119 return AE_ERROR;
1120 }
1121
1fbc01a7
LCY		 1122 pr_info("Function bitmap for Communication Device: 0x%x\n", devices);
1123 if (devices & 0x07)
1124 interface->capability |= ACER_CAP_WIRELESS;
72e71de1
LCY		 1125 if (devices & 0x40)
1126 interface->capability |= ACER_CAP_THREEG;
1127 if (devices & 0x10)
1128 interface->capability |= ACER_CAP_BLUETOOTH;
745a5d21 1129
745a5d21
CC		 1130 if (!(devices & 0x20))
1131 max_brightness = 0x9;
1132
66904863 1133 kfree(out.pointer);
745a5d21
CC		 1134 return status;
1135}
1136
1137static struct wmi_interface wmid_interface = {
1138 .type = ACER_WMID,
1139};
1140
72e71de1
LCY		 1141static struct wmi_interface wmid_v2_interface = {
1142 .type = ACER_WMID_v2,
1143};
1144
745a5d21
CC		 1145/*
1146 * Generic Device (interface-independent)
1147 */
1148
1149static acpi_status get_u32(u32 *value, u32 cap)
1150{
08237974 1151 acpi_status status = AE_ERROR;
745a5d21
CC		 1152
1153 switch (interface->type) {
1154 case ACER_AMW0:
38db157d 1155 status = AMW0_get_u32(value, cap);
745a5d21
CC		 1156 break;
1157 case ACER_AMW0_V2:
1158 if (cap == ACER_CAP_MAILLED) {
38db157d 1159 status = AMW0_get_u32(value, cap);
745a5d21
CC		 1160 break;
1161 }
1162 case ACER_WMID:
38db157d 1163 status = WMID_get_u32(value, cap);
745a5d21 1164 break;
72e71de1
LCY		 1165 case ACER_WMID_v2:
1166 if (cap & (ACER_CAP_WIRELESS |
1167 ACER_CAP_BLUETOOTH |
1168 ACER_CAP_THREEG))
1169 status = wmid_v2_get_u32(value, cap);
1170 else if (wmi_has_guid(WMID_GUID2))
38db157d 1171 status = WMID_get_u32(value, cap);
72e71de1 1172 break;
745a5d21
CC		 1173 }
1174
1175 return status;
1176}
1177
1178static acpi_status set_u32(u32 value, u32 cap)
1179{
5c742b45
CC		 1180 acpi_status status;
1181
745a5d21
CC		 1182 if (interface->capability & cap) {
1183 switch (interface->type) {
1184 case ACER_AMW0:
38db157d 1185 return AMW0_set_u32(value, cap);
745a5d21 1186 case ACER_AMW0_V2:
5c742b45 1187 if (cap == ACER_CAP_MAILLED)
38db157d 1188 return AMW0_set_u32(value, cap);
5c742b45
CC		 1189
1190 /*
1191 * On some models, some WMID methods don't toggle
1192 * properly. For those cases, we want to run the AMW0
1193 * method afterwards to be certain we've really toggled
1194 * the device state.
1195 */
1196 if (cap == ACER_CAP_WIRELESS ||
1197 cap == ACER_CAP_BLUETOOTH) {
38db157d 1198 status = WMID_set_u32(value, cap);
5c742b45
CC		 1199 if (ACPI_FAILURE(status))
1200 return status;
1201
38db157d 1202 return AMW0_set_u32(value, cap);
5c742b45 1203 }
745a5d21 1204 case ACER_WMID:
38db157d 1205 return WMID_set_u32(value, cap);
72e71de1
LCY		 1206 case ACER_WMID_v2:
1207 if (cap & (ACER_CAP_WIRELESS |
1208 ACER_CAP_BLUETOOTH |
1209 ACER_CAP_THREEG))
1210 return wmid_v2_set_u32(value, cap);
1211 else if (wmi_has_guid(WMID_GUID2))
38db157d 1212 return WMID_set_u32(value, cap);
745a5d21
CC		 1213 default:
1214 return AE_BAD_PARAMETER;
1215 }
1216 }
1217 return AE_BAD_PARAMETER;
1218}
1219
1220static void __init acer_commandline_init(void)
1221{
1222 /*
1223 * These will all fail silently if the value given is invalid, or the
1224 * capability isn't available on the given interface
1225 */
c2647b5e
LCY		 1226 if (mailled >= 0)
1227 set_u32(mailled, ACER_CAP_MAILLED);
1228 if (!has_type_aa && threeg >= 0)
6c3df88f 1229 set_u32(threeg, ACER_CAP_THREEG);
c2647b5e
LCY		 1230 if (brightness >= 0)
1231 set_u32(brightness, ACER_CAP_BRIGHTNESS);
745a5d21
CC		 1232}
1233
1234/*
1235 * LED device (Mail LED only, no other LEDs known yet)
1236 */
1237static void mail_led_set(struct led_classdev *led_cdev,
1238enum led_brightness value)
1239{
1240 set_u32(value, ACER_CAP_MAILLED);
1241}
1242
1243static struct led_classdev mail_led = {
343c0042 1244 .name = "acer-wmi::mail",
745a5d21
CC		 1245 .brightness_set = mail_led_set,
1246};
1247
7560e385 1248static int __devinit acer_led_init(struct device *dev)
745a5d21
CC		 1249{
1250 return led_classdev_register(dev, &mail_led);
1251}
1252
1253static void acer_led_exit(void)
1254{
9a0b74fd 1255 set_u32(LED_OFF, ACER_CAP_MAILLED);
745a5d21
CC		 1256 led_classdev_unregister(&mail_led);
1257}
1258
1259/*
1260 * Backlight device
1261 */
1262static struct backlight_device *acer_backlight_device;
1263
1264static int read_brightness(struct backlight_device *bd)
1265{
1266 u32 value;
1267 get_u32(&value, ACER_CAP_BRIGHTNESS);
1268 return value;
1269}
1270
1271static int update_bl_status(struct backlight_device *bd)
1272{
f2b585b4
CC		 1273 int intensity = bd->props.brightness;
1274
1275 if (bd->props.power != FB_BLANK_UNBLANK)
1276 intensity = 0;
1277 if (bd->props.fb_blank != FB_BLANK_UNBLANK)
1278 intensity = 0;
1279
1280 set_u32(intensity, ACER_CAP_BRIGHTNESS);
1281
745a5d21
CC		 1282 return 0;
1283}
1284
acc2472e 1285static const struct backlight_ops acer_bl_ops = {
745a5d21
CC		 1286 .get_brightness = read_brightness,
1287 .update_status = update_bl_status,
1288};
1289
7560e385 1290static int __devinit acer_backlight_init(struct device *dev)
745a5d21 1291{
a19a6ee6 1292 struct backlight_properties props;
745a5d21
CC		 1293 struct backlight_device *bd;
1294
a19a6ee6 1295 memset(&props, 0, sizeof(struct backlight_properties));
bb7ca747 1296 props.type = BACKLIGHT_PLATFORM;
a19a6ee6
MG		 1297 props.max_brightness = max_brightness;
1298 bd = backlight_device_register("acer-wmi", dev, NULL, &acer_bl_ops,
1299 &props);
745a5d21 1300 if (IS_ERR(bd)) {
cae15702 1301 pr_err("Could not register Acer backlight device\n");
745a5d21
CC		 1302 acer_backlight_device = NULL;
1303 return PTR_ERR(bd);
1304 }
1305
1306 acer_backlight_device = bd;
1307
f2b585b4 1308 bd->props.power = FB_BLANK_UNBLANK;
6f6ef82c 1309 bd->props.brightness = read_brightness(bd);
745a5d21
CC		 1310 backlight_update_status(bd);
1311 return 0;
1312}
1313
7560e385 1314static void acer_backlight_exit(void)
745a5d21
CC		 1315{
1316 backlight_device_unregister(acer_backlight_device);
1317}
1318
0606e1ab
CC		 1319/*
1320 * Rfkill devices
1321 */
0606e1ab
CC		 1322static void acer_rfkill_update(struct work_struct *ignored);
1323static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
1324static void acer_rfkill_update(struct work_struct *ignored)
1325{
1326 u32 state;
1327 acpi_status status;
1328
1709adab
LCY		 1329 if (has_cap(ACER_CAP_WIRELESS)) {
1330 status = get_u32(&state, ACER_CAP_WIRELESS);
1331 if (ACPI_SUCCESS(status)) {
1332 if (quirks->wireless == 3)
1333 rfkill_set_hw_state(wireless_rfkill, !state);
1334 else
1335 rfkill_set_sw_state(wireless_rfkill, !state);
15b956a0
LCY		 1336 }
1337 }
0606e1ab
CC		 1338
1339 if (has_cap(ACER_CAP_BLUETOOTH)) {
1340 status = get_u32(&state, ACER_CAP_BLUETOOTH);
1341 if (ACPI_SUCCESS(status))
a878417c 1342 rfkill_set_sw_state(bluetooth_rfkill, !state);
0606e1ab
CC		 1343 }
1344
b3c9092b 1345 if (has_cap(ACER_CAP_THREEG) && wmi_has_guid(WMID_GUID3)) {
72e71de1 1346 status = get_u32(&state, ACER_WMID3_GDS_THREEG);
b3c9092b
LCY		 1347 if (ACPI_SUCCESS(status))
1348 rfkill_set_sw_state(threeg_rfkill, !state);
1349 }
1350
ae3a1b46 1351 schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
0606e1ab
CC		 1352}
1353
19d337df 1354static int acer_rfkill_set(void *data, bool blocked)
0606e1ab
CC		 1355{
1356 acpi_status status;
19d337df 1357 u32 cap = (unsigned long)data;
8215af01
LCY		 1358
1359 if (rfkill_inited) {
72e71de1 1360 status = set_u32(!blocked, cap);
8215af01
LCY		 1361 if (ACPI_FAILURE(status))
1362 return -ENODEV;
1363 }
1364
0606e1ab
CC		 1365 return 0;
1366}
1367
19d337df
JB		 1368static const struct rfkill_ops acer_rfkill_ops = {
1369 .set_block = acer_rfkill_set,
1370};
1371
1372static struct rfkill *acer_rfkill_register(struct device *dev,
1373 enum rfkill_type type,
1374 char *name, u32 cap)
0606e1ab
CC		 1375{
1376 int err;
0606e1ab 1377 struct rfkill *rfkill_dev;
466449cf
LCY		 1378 u32 state;
1379 acpi_status status;
0606e1ab 1380
19d337df
JB		 1381 rfkill_dev = rfkill_alloc(name, dev, type,
1382 &acer_rfkill_ops,
1383 (void *)(unsigned long)cap);
0606e1ab
CC		 1384 if (!rfkill_dev)
1385 return ERR_PTR(-ENOMEM);
0606e1ab 1386
72e71de1 1387 status = get_u32(&state, cap);
466449cf 1388
0606e1ab
CC		 1389 err = rfkill_register(rfkill_dev);
1390 if (err) {
19d337df 1391 rfkill_destroy(rfkill_dev);
0606e1ab
CC		 1392 return ERR_PTR(err);
1393 }
8215af01
LCY		 1394
1395 if (ACPI_SUCCESS(status))
1396 rfkill_set_sw_state(rfkill_dev, !state);
1397
0606e1ab
CC		 1398 return rfkill_dev;
1399}
1400
1401static int acer_rfkill_init(struct device *dev)
1402{
1709adab
LCY		 1403 int err;
1404
1405 if (has_cap(ACER_CAP_WIRELESS)) {
1406 wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
1407 "acer-wireless", ACER_CAP_WIRELESS);
1408 if (IS_ERR(wireless_rfkill)) {
1409 err = PTR_ERR(wireless_rfkill);
1410 goto error_wireless;
1411 }
1412 }
0606e1ab
CC		 1413
1414 if (has_cap(ACER_CAP_BLUETOOTH)) {
1415 bluetooth_rfkill = acer_rfkill_register(dev,
1416 RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
1417 ACER_CAP_BLUETOOTH);
1418 if (IS_ERR(bluetooth_rfkill)) {
1709adab
LCY		 1419 err = PTR_ERR(bluetooth_rfkill);
1420 goto error_bluetooth;
0606e1ab
CC		 1421 }
1422 }
1423
b3c9092b
LCY		 1424 if (has_cap(ACER_CAP_THREEG)) {
1425 threeg_rfkill = acer_rfkill_register(dev,
1426 RFKILL_TYPE_WWAN, "acer-threeg",
1427 ACER_CAP_THREEG);
1428 if (IS_ERR(threeg_rfkill)) {
1709adab
LCY		 1429 err = PTR_ERR(threeg_rfkill);
1430 goto error_threeg;
b3c9092b
LCY		 1431 }
1432 }
1433
8215af01
LCY		 1434 rfkill_inited = true;
1435
1709adab
LCY		 1436 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1437 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
70a9b904
LCY		 1438 schedule_delayed_work(&acer_rfkill_work,
1439 round_jiffies_relative(HZ));
0606e1ab
CC		 1440
1441 return 0;
1709adab
LCY		 1442
1443error_threeg:
1444 if (has_cap(ACER_CAP_BLUETOOTH)) {
1445 rfkill_unregister(bluetooth_rfkill);
1446 rfkill_destroy(bluetooth_rfkill);
1447 }
1448error_bluetooth:
1449 if (has_cap(ACER_CAP_WIRELESS)) {
1450 rfkill_unregister(wireless_rfkill);
1451 rfkill_destroy(wireless_rfkill);
1452 }
1453error_wireless:
1454 return err;
0606e1ab
CC		 1455}
1456
1457static void acer_rfkill_exit(void)
1458{
1709adab
LCY		 1459 if ((ec_raw_mode || !wmi_has_guid(ACERWMID_EVENT_GUID)) &&
1460 has_cap(ACER_CAP_WIRELESS | ACER_CAP_BLUETOOTH | ACER_CAP_THREEG))
70a9b904 1461 cancel_delayed_work_sync(&acer_rfkill_work);
19d337df 1462
1709adab
LCY		 1463 if (has_cap(ACER_CAP_WIRELESS)) {
1464 rfkill_unregister(wireless_rfkill);
1465 rfkill_destroy(wireless_rfkill);
1466 }
19d337df 1467
0606e1ab 1468 if (has_cap(ACER_CAP_BLUETOOTH)) {
0606e1ab 1469 rfkill_unregister(bluetooth_rfkill);
19d337df 1470 rfkill_destroy(bluetooth_rfkill);
0606e1ab 1471 }
b3c9092b
LCY		 1472
1473 if (has_cap(ACER_CAP_THREEG)) {
1474 rfkill_unregister(threeg_rfkill);
1475 rfkill_destroy(threeg_rfkill);
1476 }
0606e1ab
CC		 1477 return;
1478}
1479
745a5d21 1480/*
7d9a06de 1481 * sysfs interface
745a5d21 1482 */
7d9a06de
CC		 1483static ssize_t show_bool_threeg(struct device *dev,
1484 struct device_attribute *attr, char *buf)
1485{
745a5d21 1486 u32 result; \
b3c9092b 1487 acpi_status status;
7b8aca65 1488
6e71f38b
JP		 1489 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1490 current->comm);
72e71de1 1491 status = get_u32(&result, ACER_CAP_THREEG);
7d9a06de
CC		 1492 if (ACPI_SUCCESS(status))
1493 return sprintf(buf, "%u\n", result);
1494 return sprintf(buf, "Read error\n");
1495}
1496
1497static ssize_t set_bool_threeg(struct device *dev,
1498 struct device_attribute *attr, const char *buf, size_t count)
1499{
1500 u32 tmp = simple_strtoul(buf, NULL, 10);
1501 acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
6e71f38b
JP		 1502 pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
1503 current->comm);
7b8aca65
LCY		 1504 if (ACPI_FAILURE(status))
1505 return -EINVAL;
7d9a06de
CC		 1506 return count;
1507}
b80b168f 1508static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
7d9a06de 1509 set_bool_threeg);
745a5d21 1510
745a5d21
CC		 1511static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
1512 char *buf)
1513{
6e71f38b
JP		 1514 pr_info("This interface sysfs will be removed in 2012 - used by: %s\n",
1515 current->comm);
745a5d21
CC		 1516 switch (interface->type) {
1517 case ACER_AMW0:
1518 return sprintf(buf, "AMW0\n");
1519 case ACER_AMW0_V2:
1520 return sprintf(buf, "AMW0 v2\n");
1521 case ACER_WMID:
1522 return sprintf(buf, "WMID\n");
72e71de1
LCY		 1523 case ACER_WMID_v2:
1524 return sprintf(buf, "WMID v2\n");
745a5d21
CC		 1525 default:
1526 return sprintf(buf, "Error!\n");
1527 }
1528}
1529
370525df 1530static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL);
745a5d21 1531
3fdca87d
LCY		 1532static void acer_wmi_notify(u32 value, void *context)
1533{
1534 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
1535 union acpi_object *obj;
1536 struct event_return_value return_value;
1537 acpi_status status;
92530664
SF		 1538 u16 device_state;
1539 const struct key_entry *key;
3fdca87d
LCY		 1540
1541 status = wmi_get_event_data(value, &response);
1542 if (status != AE_OK) {
249c720d 1543 pr_warn("bad event status 0x%x\n", status);
3fdca87d
LCY		 1544 return;
1545 }
1546
1547 obj = (union acpi_object *)response.pointer;
1548
1549 if (!obj)
1550 return;
1551 if (obj->type != ACPI_TYPE_BUFFER) {
249c720d 1552 pr_warn("Unknown response received %d\n", obj->type);
3fdca87d
LCY		 1553 kfree(obj);
1554 return;
1555 }
1556 if (obj->buffer.length != 8) {
249c720d 1557 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
3fdca87d
LCY		 1558 kfree(obj);
1559 return;
1560 }
1561
1562 return_value = *((struct event_return_value *)obj->buffer.pointer);
1563 kfree(obj);
1564
1565 switch (return_value.function) {
1566 case WMID_HOTKEY_EVENT:
92530664
SF		 1567 device_state = return_value.device_state;
1568 pr_debug("device state: 0x%x\n", device_state);
1569
1570 key = sparse_keymap_entry_from_scancode(acer_wmi_input_dev,
1571 return_value.key_num);
1572 if (!key) {
249c720d 1573 pr_warn("Unknown key number - 0x%x\n",
3fdca87d 1574 return_value.key_num);
92530664
SF		 1575 } else {
1576 switch (key->keycode) {
1577 case KEY_WLAN:
1578 case KEY_BLUETOOTH:
1579 if (has_cap(ACER_CAP_WIRELESS))
1580 rfkill_set_sw_state(wireless_rfkill,
1581 !(device_state & ACER_WMID3_GDS_WIRELESS));
1582 if (has_cap(ACER_CAP_THREEG))
1583 rfkill_set_sw_state(threeg_rfkill,
1584 !(device_state & ACER_WMID3_GDS_THREEG));
1585 if (has_cap(ACER_CAP_BLUETOOTH))
1586 rfkill_set_sw_state(bluetooth_rfkill,
1587 !(device_state & ACER_WMID3_GDS_BLUETOOTH));
1588 break;
1589 }
1590 sparse_keymap_report_entry(acer_wmi_input_dev, key,
1591 1, true);
1592 }
3fdca87d
LCY		 1593 break;
1594 default:
249c720d 1595 pr_warn("Unknown function number - %d - %d\n",
3fdca87d
LCY		 1596 return_value.function, return_value.key_num);
1597 break;
1598 }
1599}
1600
59ccf2f3
FLCY		 1601static acpi_status
1602wmid3_set_lm_mode(struct lm_input_params *params,
1603 struct lm_return_value *return_value)
1604{
1605 acpi_status status;
1606 union acpi_object *obj;
1607
1608 struct acpi_buffer input = { sizeof(struct lm_input_params), params };
1609 struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1610
1611 status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
1612 if (ACPI_FAILURE(status))
1613 return status;
1614
1615 obj = output.pointer;
1616
1617 if (!obj)
1618 return AE_ERROR;
1619 else if (obj->type != ACPI_TYPE_BUFFER) {
1620 kfree(obj);
1621 return AE_ERROR;
1622 }
1623 if (obj->buffer.length != 4) {
249c720d 1624 pr_warn("Unknown buffer length %d\n", obj->buffer.length);
59ccf2f3
FLCY		 1625 kfree(obj);
1626 return AE_ERROR;
1627 }
1628
1629 *return_value = *((struct lm_return_value *)obj->buffer.pointer);
1630 kfree(obj);
1631
1632 return status;
1633}
1634
1635static int acer_wmi_enable_ec_raw(void)
1636{
1637 struct lm_return_value return_value;
1638 acpi_status status;
1639 struct lm_input_params params = {
1640 .function_num = 0x1,
1641 .commun_devices = 0xFFFF,
1642 .devices = 0xFFFF,
1643 .lm_status = 0x00, /* Launch Manager Deactive */
1644 };
1645
1646 status = wmid3_set_lm_mode(&params, &return_value);
1647
1648 if (return_value.error_code || return_value.ec_return_value)
249c720d
JP		 1649 pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
1650 return_value.error_code,
1651 return_value.ec_return_value);
59ccf2f3 1652 else
249c720d 1653 pr_info("Enabled EC raw mode\n");
59ccf2f3
FLCY		 1654
1655 return status;
1656}
1657
1658static int acer_wmi_enable_lm(void)
1659{
1660 struct lm_return_value return_value;
1661 acpi_status status;
1662 struct lm_input_params params = {
1663 .function_num = 0x1,
1664 .commun_devices = 0xFFFF,
1665 .devices = 0xFFFF,
1666 .lm_status = 0x01, /* Launch Manager Active */
1667 };
1668
1669 status = wmid3_set_lm_mode(&params, &return_value);
1670
1671 if (return_value.error_code || return_value.ec_return_value)
249c720d
JP		 1672 pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
1673 return_value.error_code,
1674 return_value.ec_return_value);
59ccf2f3
FLCY		 1675
1676 return status;
1677}
1678
3fdca87d
LCY		 1679static int __init acer_wmi_input_setup(void)
1680{
1681 acpi_status status;
1682 int err;
1683
1684 acer_wmi_input_dev = input_allocate_device();
1685 if (!acer_wmi_input_dev)
1686 return -ENOMEM;
1687
1688 acer_wmi_input_dev->name = "Acer WMI hotkeys";
1689 acer_wmi_input_dev->phys = "wmi/input0";
1690 acer_wmi_input_dev->id.bustype = BUS_HOST;
1691
1692 err = sparse_keymap_setup(acer_wmi_input_dev, acer_wmi_keymap, NULL);
1693 if (err)
1694 goto err_free_dev;
1695
1696 status = wmi_install_notify_handler(ACERWMID_EVENT_GUID,
1697 acer_wmi_notify, NULL);
1698 if (ACPI_FAILURE(status)) {
1699 err = -EIO;
1700 goto err_free_keymap;
1701 }
1702
1703 err = input_register_device(acer_wmi_input_dev);
1704 if (err)
1705 goto err_uninstall_notifier;
1706
1707 return 0;
1708
1709err_uninstall_notifier:
1710 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1711err_free_keymap:
1712 sparse_keymap_free(acer_wmi_input_dev);
1713err_free_dev:
1714 input_free_device(acer_wmi_input_dev);
1715 return err;
1716}
1717
1718static void acer_wmi_input_destroy(void)
1719{
1720 wmi_remove_notify_handler(ACERWMID_EVENT_GUID);
1721 sparse_keymap_free(acer_wmi_input_dev);
1722 input_unregister_device(acer_wmi_input_dev);
1723}
1724
81143522
CC		 1725/*
1726 * debugfs functions
1727 */
1728static u32 get_wmid_devices(void)
1729{
1730 struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
1731 union acpi_object *obj;
1732 acpi_status status;
66904863 1733 u32 devices = 0;
81143522
CC		 1734
1735 status = wmi_query_block(WMID_GUID2, 1, &out);
1736 if (ACPI_FAILURE(status))
1737 return 0;
1738
1739 obj = (union acpi_object *) out.pointer;
1740 if (obj && obj->type == ACPI_TYPE_BUFFER &&
ab6a9316
LCY		 1741 (obj->buffer.length == sizeof(u32) ||
1742 obj->buffer.length == sizeof(u64))) {
66904863 1743 devices = *((u32 *) obj->buffer.pointer);
987dfbaa
LCY		 1744 } else if (obj->type == ACPI_TYPE_INTEGER) {
1745 devices = (u32) obj->integer.value;
81143522 1746 }
66904863
AL		 1747
1748 kfree(out.pointer);
1749 return devices;
81143522
CC		 1750}
1751
745a5d21
CC		 1752/*
1753 * Platform device
1754 */
1755static int __devinit acer_platform_probe(struct platform_device *device)
1756{
1757 int err;
1758
1759 if (has_cap(ACER_CAP_MAILLED)) {
1760 err = acer_led_init(&device->dev);
1761 if (err)
1762 goto error_mailled;
1763 }
1764
1765 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1766 err = acer_backlight_init(&device->dev);
1767 if (err)
1768 goto error_brightness;
1769 }
1770
0606e1ab 1771 err = acer_rfkill_init(&device->dev);
350e3290
AW		 1772 if (err)
1773 goto error_rfkill;
0606e1ab
CC		 1774
1775 return err;
745a5d21 1776
350e3290
AW		 1777error_rfkill:
1778 if (has_cap(ACER_CAP_BRIGHTNESS))
1779 acer_backlight_exit();
745a5d21 1780error_brightness:
350e3290
AW		 1781 if (has_cap(ACER_CAP_MAILLED))
1782 acer_led_exit();
745a5d21
CC		 1783error_mailled:
1784 return err;
1785}
1786
1787static int acer_platform_remove(struct platform_device *device)
1788{
1789 if (has_cap(ACER_CAP_MAILLED))
1790 acer_led_exit();
1791 if (has_cap(ACER_CAP_BRIGHTNESS))
1792 acer_backlight_exit();
0606e1ab
CC		 1793
1794 acer_rfkill_exit();
745a5d21
CC		 1795 return 0;
1796}
1797
1798static int acer_platform_suspend(struct platform_device *dev,
1799pm_message_t state)
1800{
1801 u32 value;
1802 struct acer_data *data = &interface->data;
1803
1804 if (!data)
1805 return -ENOMEM;
1806
745a5d21
CC		 1807 if (has_cap(ACER_CAP_MAILLED)) {
1808 get_u32(&value, ACER_CAP_MAILLED);
9a0b74fd 1809 set_u32(LED_OFF, ACER_CAP_MAILLED);
745a5d21
CC		 1810 data->mailled = value;
1811 }
1812
1813 if (has_cap(ACER_CAP_BRIGHTNESS)) {
1814 get_u32(&value, ACER_CAP_BRIGHTNESS);
1815 data->brightness = value;
1816 }
1817
1818 return 0;
1819}
1820
1821static int acer_platform_resume(struct platform_device *device)
1822{
1823 struct acer_data *data = &interface->data;
1824
1825 if (!data)
1826 return -ENOMEM;
1827
745a5d21
CC		 1828 if (has_cap(ACER_CAP_MAILLED))
1829 set_u32(data->mailled, ACER_CAP_MAILLED);
1830
1831 if (has_cap(ACER_CAP_BRIGHTNESS))
1832 set_u32(data->brightness, ACER_CAP_BRIGHTNESS);
1833
1834 return 0;
1835}
1836
9a0b74fd
PR		 1837static void acer_platform_shutdown(struct platform_device *device)
1838{
1839 struct acer_data *data = &interface->data;
1840
1841 if (!data)
1842 return;
1843
1844 if (has_cap(ACER_CAP_MAILLED))
1845 set_u32(LED_OFF, ACER_CAP_MAILLED);
1846}
1847
745a5d21
CC		 1848static struct platform_driver acer_platform_driver = {
1849 .driver = {
1850 .name = "acer-wmi",
1851 .owner = THIS_MODULE,
1852 },
1853 .probe = acer_platform_probe,
1854 .remove = acer_platform_remove,
1855 .suspend = acer_platform_suspend,
1856 .resume = acer_platform_resume,
9a0b74fd 1857 .shutdown = acer_platform_shutdown,
745a5d21
CC		 1858};
1859
1860static struct platform_device *acer_platform_device;
1861
1862static int remove_sysfs(struct platform_device *device)
1863{
745a5d21
CC		 1864 if (has_cap(ACER_CAP_THREEG))
1865 device_remove_file(&device->dev, &dev_attr_threeg);
1866
1867 device_remove_file(&device->dev, &dev_attr_interface);
1868
1869 return 0;
1870}
1871
1872static int create_sysfs(void)
1873{
1874 int retval = -ENOMEM;
1875
745a5d21
CC		 1876 if (has_cap(ACER_CAP_THREEG)) {
1877 retval = device_create_file(&acer_platform_device->dev,
1878 &dev_attr_threeg);
1879 if (retval)
1880 goto error_sysfs;
1881 }
1882
1883 retval = device_create_file(&acer_platform_device->dev,
1884 &dev_attr_interface);
1885 if (retval)
1886 goto error_sysfs;
1887
1888 return 0;
1889
1890error_sysfs:
1891 remove_sysfs(acer_platform_device);
1892 return retval;
1893}
1894
81143522
CC		 1895static void remove_debugfs(void)
1896{
1897 debugfs_remove(interface->debug.devices);
1898 debugfs_remove(interface->debug.root);
1899}
1900
1901static int create_debugfs(void)
1902{
1903 interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
1904 if (!interface->debug.root) {
cae15702 1905 pr_err("Failed to create debugfs directory");
81143522
CC		 1906 return -ENOMEM;
1907 }
1908
1909 interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
1910 interface->debug.root,
1911 &interface->debug.wmid_devices);
1912 if (!interface->debug.devices)
1913 goto error_debugfs;
1914
1915 return 0;
1916
1917error_debugfs:
39dbbb45 1918 remove_debugfs();
81143522
CC		 1919 return -ENOMEM;
1920}
1921
745a5d21
CC		 1922static int __init acer_wmi_init(void)
1923{
1924 int err;
1925
cae15702 1926 pr_info("Acer Laptop ACPI-WMI Extras\n");
745a5d21 1927
a74dd5fd 1928 if (dmi_check_system(acer_blacklist)) {
cae15702 1929 pr_info("Blacklisted hardware detected - not loading\n");
a74dd5fd
CC		 1930 return -ENODEV;
1931 }
1932
9991d9f2
CC		 1933 find_quirks();
1934
745a5d21
CC		 1935 /*
1936 * Detect which ACPI-WMI interface we're using.
1937 */
1938 if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
1939 interface = &AMW0_V2_interface;
1940
1941 if (!wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
1942 interface = &wmid_interface;
1943
72e71de1
LCY		 1944 if (wmi_has_guid(WMID_GUID3))
1945 interface = &wmid_v2_interface;
1946
1947 if (interface)
1948 dmi_walk(type_aa_dmi_decode, NULL);
1949
745a5d21 1950 if (wmi_has_guid(WMID_GUID2) && interface) {
72e71de1 1951 if (!has_type_aa && ACPI_FAILURE(WMID_set_capabilities())) {
cae15702 1952 pr_err("Unable to detect available WMID devices\n");
745a5d21
CC		 1953 return -ENODEV;
1954 }
72e71de1
LCY		 1955 /* WMID always provides brightness methods */
1956 interface->capability |= ACER_CAP_BRIGHTNESS;
1957 } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
cae15702 1958 pr_err("No WMID device detection method found\n");
745a5d21
CC		 1959 return -ENODEV;
1960 }
1961
1962 if (wmi_has_guid(AMW0_GUID1) && !wmi_has_guid(WMID_GUID1)) {
1963 interface = &AMW0_interface;
1964
1965 if (ACPI_FAILURE(AMW0_set_capabilities())) {
cae15702 1966 pr_err("Unable to detect available AMW0 devices\n");
745a5d21
CC		 1967 return -ENODEV;
1968 }
1969 }
1970
9b963c40
CC		 1971 if (wmi_has_guid(AMW0_GUID1))
1972 AMW0_find_mailled();
745a5d21 1973
745a5d21 1974 if (!interface) {
cae15702 1975 pr_err("No or unsupported WMI interface, unable to load\n");
745a5d21
CC		 1976 return -ENODEV;
1977 }
1978
83097aca
AV		 1979 set_quirks();
1980
72e71de1 1981 if (acpi_video_backlight_support()) {
febf2d95 1982 interface->capability &= ~ACER_CAP_BRIGHTNESS;
6e71f38b 1983 pr_info("Brightness must be controlled by generic video driver\n");
febf2d95
TR		 1984 }
1985
59ccf2f3
FLCY		 1986 if (wmi_has_guid(WMID_GUID3)) {
1987 if (ec_raw_mode) {
1988 if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
cae15702 1989 pr_err("Cannot enable EC raw mode\n");
59ccf2f3
FLCY		 1990 return -ENODEV;
1991 }
1992 } else if (ACPI_FAILURE(acer_wmi_enable_lm())) {
cae15702 1993 pr_err("Cannot enable Launch Manager mode\n");
59ccf2f3
FLCY		 1994 return -ENODEV;
1995 }
1996 } else if (ec_raw_mode) {
cae15702 1997 pr_info("No WMID EC raw mode enable method\n");
59ccf2f3
FLCY		 1998 }
1999
3fdca87d
LCY		 2000 if (wmi_has_guid(ACERWMID_EVENT_GUID)) {
2001 err = acer_wmi_input_setup();
2002 if (err)
2003 return err;
2004 }
2005
1c79632b
AL		 2006 err = platform_driver_register(&acer_platform_driver);
2007 if (err) {
6e71f38b 2008 pr_err("Unable to register platform driver\n");
745a5d21
CC		 2009 goto error_platform_register;
2010 }
1c79632b 2011
745a5d21 2012 acer_platform_device = platform_device_alloc("acer-wmi", -1);
1c79632b
AL		 2013 if (!acer_platform_device) {
2014 err = -ENOMEM;
2015 goto error_device_alloc;
2016 }
2017
2018 err = platform_device_add(acer_platform_device);
2019 if (err)
2020 goto error_device_add;
745a5d21
CC		 2021
2022 err = create_sysfs();
2023 if (err)
1c79632b 2024 goto error_create_sys;
745a5d21 2025
81143522
CC		 2026 if (wmi_has_guid(WMID_GUID2)) {
2027 interface->debug.wmid_devices = get_wmid_devices();
2028 err = create_debugfs();
2029 if (err)
1c79632b 2030 goto error_create_debugfs;
81143522
CC		 2031 }
2032
745a5d21
CC		 2033 /* Override any initial settings with values from the commandline */
2034 acer_commandline_init();
2035
2036 return 0;
2037
1c79632b
AL		 2038error_create_debugfs:
2039 remove_sysfs(acer_platform_device);
2040error_create_sys:
2041 platform_device_del(acer_platform_device);
2042error_device_add:
2043 platform_device_put(acer_platform_device);
2044error_device_alloc:
2045 platform_driver_unregister(&acer_platform_driver);
745a5d21 2046error_platform_register:
3fdca87d
LCY		 2047 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2048 acer_wmi_input_destroy();
2049
1c79632b 2050 return err;
745a5d21
CC		 2051}
2052
2053static void __exit acer_wmi_exit(void)
2054{
3fdca87d
LCY		 2055 if (wmi_has_guid(ACERWMID_EVENT_GUID))
2056 acer_wmi_input_destroy();
2057
745a5d21 2058 remove_sysfs(acer_platform_device);
39dbbb45 2059 remove_debugfs();
97ba0af0 2060 platform_device_unregister(acer_platform_device);
745a5d21
CC		 2061 platform_driver_unregister(&acer_platform_driver);
2062
cae15702 2063 pr_info("Acer Laptop WMI Extras unloaded\n");
745a5d21
CC		 2064 return;
2065}
2066
2067module_init(acer_wmi_init);
2068module_exit(acer_wmi_exit);
Arne's tree of linux kernel.