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Commit | Line | Data |
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91d3256c | 1 | /* |
3f4978c7 HS |
2 | * Copyright (C) 2009 Sergey Kubushyn <ksi@koi8.net> |
3 | * | |
4 | * Changes for multibus/multiadapter I2C support. | |
5 | * | |
91d3256c WD |
6 | * (C) Copyright 2000 |
7 | * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it | |
8 | * | |
1a459660 | 9 | * SPDX-License-Identifier: GPL-2.0+ |
91d3256c WD |
10 | */ |
11 | ||
12 | #include <config.h> | |
13 | #include <common.h> | |
b206cd73 | 14 | #include <dm.h> |
d97143a6 | 15 | #include <errno.h> |
91d3256c WD |
16 | #include <stdarg.h> |
17 | #include <malloc.h> | |
52cb4d4f | 18 | #include <stdio_dev.h> |
281e00a3 | 19 | #include <serial.h> |
7f6c2cbc WD |
20 | #ifdef CONFIG_LOGBUFFER |
21 | #include <logbuff.h> | |
22 | #endif | |
ea818dbb HS |
23 | |
24 | #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C) | |
91d3256c | 25 | #include <i2c.h> |
7f6c2cbc | 26 | #endif |
91d3256c | 27 | |
b206cd73 SG |
28 | #include <dm/device-internal.h> |
29 | ||
d87080b7 WD |
30 | DECLARE_GLOBAL_DATA_PTR; |
31 | ||
52cb4d4f JCPV |
32 | static struct stdio_dev devs; |
33 | struct stdio_dev *stdio_devices[] = { NULL, NULL, NULL }; | |
91d3256c WD |
34 | char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" }; |
35 | ||
6d0f6bcf JCPV |
36 | #if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV) |
37 | #define CONFIG_SYS_DEVICE_NULLDEV 1 | |
d791b1dc WD |
38 | #endif |
39 | ||
32d01926 HG |
40 | #ifdef CONFIG_SYS_STDIO_DEREGISTER |
41 | #define CONFIG_SYS_DEVICE_NULLDEV 1 | |
42 | #endif | |
d791b1dc | 43 | |
6d0f6bcf | 44 | #ifdef CONFIG_SYS_DEVICE_NULLDEV |
654f8d0f | 45 | static void nulldev_putc(struct stdio_dev *dev, const char c) |
91d3256c | 46 | { |
c1de7a6d | 47 | /* nulldev is empty! */ |
91d3256c WD |
48 | } |
49 | ||
654f8d0f | 50 | static void nulldev_puts(struct stdio_dev *dev, const char *s) |
91d3256c | 51 | { |
c1de7a6d | 52 | /* nulldev is empty! */ |
91d3256c WD |
53 | } |
54 | ||
654f8d0f | 55 | static int nulldev_input(struct stdio_dev *dev) |
91d3256c | 56 | { |
c1de7a6d JCPV |
57 | /* nulldev is empty! */ |
58 | return 0; | |
91d3256c WD |
59 | } |
60 | #endif | |
61 | ||
654f8d0f | 62 | static void stdio_serial_putc(struct stdio_dev *dev, const char c) |
709ea543 SG |
63 | { |
64 | serial_putc(c); | |
65 | } | |
66 | ||
654f8d0f | 67 | static void stdio_serial_puts(struct stdio_dev *dev, const char *s) |
709ea543 SG |
68 | { |
69 | serial_puts(s); | |
70 | } | |
71 | ||
654f8d0f | 72 | static int stdio_serial_getc(struct stdio_dev *dev) |
709ea543 SG |
73 | { |
74 | return serial_getc(); | |
75 | } | |
76 | ||
654f8d0f | 77 | static int stdio_serial_tstc(struct stdio_dev *dev) |
709ea543 SG |
78 | { |
79 | return serial_tstc(); | |
80 | } | |
81 | ||
91d3256c WD |
82 | /************************************************************************** |
83 | * SYSTEM DRIVERS | |
84 | ************************************************************************** | |
85 | */ | |
86 | ||
87 | static void drv_system_init (void) | |
88 | { | |
52cb4d4f | 89 | struct stdio_dev dev; |
91d3256c WD |
90 | |
91 | memset (&dev, 0, sizeof (dev)); | |
92 | ||
93 | strcpy (dev.name, "serial"); | |
1caf934a | 94 | dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT; |
709ea543 SG |
95 | dev.putc = stdio_serial_putc; |
96 | dev.puts = stdio_serial_puts; | |
97 | dev.getc = stdio_serial_getc; | |
98 | dev.tstc = stdio_serial_tstc; | |
52cb4d4f | 99 | stdio_register (&dev); |
91d3256c | 100 | |
6d0f6bcf | 101 | #ifdef CONFIG_SYS_DEVICE_NULLDEV |
91d3256c WD |
102 | memset (&dev, 0, sizeof (dev)); |
103 | ||
104 | strcpy (dev.name, "nulldev"); | |
1caf934a | 105 | dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT; |
91d3256c WD |
106 | dev.putc = nulldev_putc; |
107 | dev.puts = nulldev_puts; | |
108 | dev.getc = nulldev_input; | |
109 | dev.tstc = nulldev_input; | |
110 | ||
52cb4d4f | 111 | stdio_register (&dev); |
91d3256c WD |
112 | #endif |
113 | } | |
114 | ||
115 | /************************************************************************** | |
116 | * DEVICES | |
117 | ************************************************************************** | |
118 | */ | |
52cb4d4f | 119 | struct list_head* stdio_get_list(void) |
c1de7a6d JCPV |
120 | { |
121 | return &(devs.list); | |
122 | } | |
123 | ||
d7be3056 | 124 | struct stdio_dev* stdio_get_by_name(const char *name) |
c1de7a6d JCPV |
125 | { |
126 | struct list_head *pos; | |
52cb4d4f | 127 | struct stdio_dev *dev; |
c1de7a6d JCPV |
128 | |
129 | if(!name) | |
130 | return NULL; | |
131 | ||
132 | list_for_each(pos, &(devs.list)) { | |
52cb4d4f | 133 | dev = list_entry(pos, struct stdio_dev, list); |
c1de7a6d JCPV |
134 | if(strcmp(dev->name, name) == 0) |
135 | return dev; | |
136 | } | |
137 | ||
138 | return NULL; | |
139 | } | |
140 | ||
52cb4d4f | 141 | struct stdio_dev* stdio_clone(struct stdio_dev *dev) |
628ffd73 | 142 | { |
52cb4d4f | 143 | struct stdio_dev *_dev; |
628ffd73 JCPV |
144 | |
145 | if(!dev) | |
146 | return NULL; | |
147 | ||
52cb4d4f | 148 | _dev = calloc(1, sizeof(struct stdio_dev)); |
628ffd73 JCPV |
149 | |
150 | if(!_dev) | |
151 | return NULL; | |
152 | ||
52cb4d4f | 153 | memcpy(_dev, dev, sizeof(struct stdio_dev)); |
628ffd73 JCPV |
154 | |
155 | return _dev; | |
156 | } | |
91d3256c | 157 | |
d97143a6 | 158 | int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp) |
91d3256c | 159 | { |
52cb4d4f | 160 | struct stdio_dev *_dev; |
628ffd73 | 161 | |
52cb4d4f | 162 | _dev = stdio_clone(dev); |
628ffd73 | 163 | if(!_dev) |
d97143a6 | 164 | return -ENODEV; |
3e3c026e | 165 | list_add_tail(&(_dev->list), &(devs.list)); |
d97143a6 SG |
166 | if (devp) |
167 | *devp = _dev; | |
168 | ||
91d3256c WD |
169 | return 0; |
170 | } | |
171 | ||
d97143a6 SG |
172 | int stdio_register(struct stdio_dev *dev) |
173 | { | |
174 | return stdio_register_dev(dev, NULL); | |
175 | } | |
176 | ||
91d3256c WD |
177 | /* deregister the device "devname". |
178 | * returns 0 if success, -1 if device is assigned and 1 if devname not found | |
179 | */ | |
52cb4d4f | 180 | #ifdef CONFIG_SYS_STDIO_DEREGISTER |
32d01926 | 181 | int stdio_deregister_dev(struct stdio_dev *dev, int force) |
91d3256c | 182 | { |
c1de7a6d JCPV |
183 | int l; |
184 | struct list_head *pos; | |
03bf22f5 | 185 | char temp_names[3][16]; |
91d3256c | 186 | |
91d3256c WD |
187 | /* get stdio devices (ListRemoveItem changes the dev list) */ |
188 | for (l=0 ; l< MAX_FILES; l++) { | |
189 | if (stdio_devices[l] == dev) { | |
32d01926 HG |
190 | if (force) { |
191 | strcpy(temp_names[l], "nulldev"); | |
192 | continue; | |
193 | } | |
91d3256c WD |
194 | /* Device is assigned -> report error */ |
195 | return -1; | |
196 | } | |
197 | memcpy (&temp_names[l][0], | |
198 | stdio_devices[l]->name, | |
03bf22f5 | 199 | sizeof(temp_names[l])); |
91d3256c | 200 | } |
c1de7a6d JCPV |
201 | |
202 | list_del(&(dev->list)); | |
88274b6c | 203 | free(dev); |
c1de7a6d | 204 | |
91d3256c | 205 | /* reassign Device list */ |
c1de7a6d | 206 | list_for_each(pos, &(devs.list)) { |
52cb4d4f | 207 | dev = list_entry(pos, struct stdio_dev, list); |
91d3256c | 208 | for (l=0 ; l< MAX_FILES; l++) { |
c1de7a6d | 209 | if(strcmp(dev->name, temp_names[l]) == 0) |
91d3256c | 210 | stdio_devices[l] = dev; |
91d3256c WD |
211 | } |
212 | } | |
213 | return 0; | |
214 | } | |
d97143a6 | 215 | |
32d01926 | 216 | int stdio_deregister(const char *devname, int force) |
d97143a6 SG |
217 | { |
218 | struct stdio_dev *dev; | |
219 | ||
220 | dev = stdio_get_by_name(devname); | |
221 | ||
222 | if (!dev) /* device not found */ | |
223 | return -ENODEV; | |
224 | ||
32d01926 | 225 | return stdio_deregister_dev(dev, force); |
d97143a6 | 226 | } |
52cb4d4f | 227 | #endif /* CONFIG_SYS_STDIO_DEREGISTER */ |
91d3256c | 228 | |
9fb02491 | 229 | int stdio_init_tables(void) |
91d3256c | 230 | { |
2e5167cc | 231 | #if defined(CONFIG_NEEDS_MANUAL_RELOC) |
521af04d | 232 | /* already relocated for current ARM implementation */ |
91d3256c | 233 | ulong relocation_offset = gd->reloc_off; |
3595ac49 | 234 | int i; |
91d3256c WD |
235 | |
236 | /* relocate device name pointers */ | |
237 | for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) { | |
238 | stdio_names[i] = (char *) (((ulong) stdio_names[i]) + | |
239 | relocation_offset); | |
240 | } | |
2e5167cc | 241 | #endif /* CONFIG_NEEDS_MANUAL_RELOC */ |
91d3256c WD |
242 | |
243 | /* Initialize the list */ | |
c1de7a6d | 244 | INIT_LIST_HEAD(&(devs.list)); |
91d3256c | 245 | |
9fb02491 SG |
246 | return 0; |
247 | } | |
248 | ||
249 | int stdio_add_devices(void) | |
250 | { | |
b206cd73 SG |
251 | #ifdef CONFIG_DM_KEYBOARD |
252 | struct udevice *dev; | |
253 | struct uclass *uc; | |
254 | int ret; | |
255 | ||
256 | /* | |
257 | * For now we probe all the devices here. At some point this should be | |
258 | * done only when the devices are required - e.g. we have a list of | |
259 | * input devices to start up in the stdin environment variable. That | |
260 | * work probably makes more sense when stdio itself is converted to | |
261 | * driver model. | |
262 | * | |
263 | * TODO(sjg@chromium.org): Convert changing uclass_first_device() etc. | |
264 | * to return the device even on error. Then we could use that here. | |
265 | */ | |
266 | ret = uclass_get(UCLASS_KEYBOARD, &uc); | |
267 | if (ret) | |
268 | return ret; | |
269 | ||
270 | /* Don't report errors to the caller - assume that they are non-fatal */ | |
271 | uclass_foreach_dev(dev, uc) { | |
272 | ret = device_probe(dev); | |
273 | if (ret) | |
274 | printf("Failed to probe keyboard '%s'\n", dev->name); | |
275 | } | |
276 | #endif | |
3f4978c7 | 277 | #ifdef CONFIG_SYS_I2C |
3f4978c7 | 278 | i2c_init_all(); |
3f4978c7 | 279 | #else |
ea818dbb | 280 | #if defined(CONFIG_HARD_I2C) |
6d0f6bcf | 281 | i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); |
91d3256c | 282 | #endif |
3f4978c7 | 283 | #endif |
e3b81c1c SG |
284 | #ifdef CONFIG_DM_VIDEO |
285 | struct udevice *vdev; | |
35a1f0df SG |
286 | # ifndef CONFIG_DM_KEYBOARD |
287 | int ret; | |
288 | # endif | |
e3b81c1c SG |
289 | |
290 | for (ret = uclass_first_device(UCLASS_VIDEO, &vdev); | |
291 | vdev; | |
292 | ret = uclass_next_device(&vdev)) | |
293 | ; | |
294 | if (ret) | |
295 | printf("%s: Video device failed (ret=%d)\n", __func__, ret); | |
296 | #else | |
297 | # if defined(CONFIG_LCD) | |
91d3256c | 298 | drv_lcd_init (); |
e3b81c1c SG |
299 | # endif |
300 | # if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) | |
91d3256c | 301 | drv_video_init (); |
e3b81c1c SG |
302 | # endif |
303 | #endif /* CONFIG_DM_VIDEO */ | |
b206cd73 | 304 | #if defined(CONFIG_KEYBOARD) && !defined(CONFIG_DM_KEYBOARD) |
682011ff | 305 | drv_keyboard_init (); |
56f94be3 WD |
306 | #endif |
307 | #ifdef CONFIG_LOGBUFFER | |
308 | drv_logbuff_init (); | |
91d3256c WD |
309 | #endif |
310 | drv_system_init (); | |
52cb4d4f | 311 | serial_stdio_init (); |
232c150a WD |
312 | #ifdef CONFIG_USB_TTY |
313 | drv_usbtty_init (); | |
314 | #endif | |
68ceb29e WD |
315 | #ifdef CONFIG_NETCONSOLE |
316 | drv_nc_init (); | |
317 | #endif | |
36ea8e9a MF |
318 | #ifdef CONFIG_JTAG_CONSOLE |
319 | drv_jtag_console_init (); | |
320 | #endif | |
98ab435f VB |
321 | #ifdef CONFIG_CBMEM_CONSOLE |
322 | cbmemc_init(); | |
323 | #endif | |
9fb02491 SG |
324 | |
325 | return 0; | |
326 | } | |
327 | ||
328 | int stdio_init(void) | |
329 | { | |
330 | stdio_init_tables(); | |
331 | stdio_add_devices(); | |
332 | ||
333 | return 0; | |
91d3256c | 334 | } |