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1da177e4 LT |
1 | /* |
2 | * video.c - ACPI Video Driver ($Revision:$) | |
3 | * | |
4 | * Copyright (C) 2004 Luming Yu <luming.yu@intel.com> | |
5 | * Copyright (C) 2004 Bruno Ducrot <ducrot@poupinou.org> | |
f4715189 | 6 | * Copyright (C) 2006 Thomas Tuttle <linux-kernel@ttuttle.net> |
1da177e4 LT |
7 | * |
8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
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 (at | |
13 | * your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License along | |
21 | * with this program; if not, write to the Free Software Foundation, Inc., | |
22 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
23 | * | |
24 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
25 | */ | |
26 | ||
27 | #include <linux/kernel.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/init.h> | |
30 | #include <linux/types.h> | |
31 | #include <linux/list.h> | |
32 | #include <linux/proc_fs.h> | |
33 | #include <linux/seq_file.h> | |
e9dab196 | 34 | #include <linux/input.h> |
2f3d000a | 35 | #include <linux/backlight.h> |
23b0f015 | 36 | #include <linux/video_output.h> |
1da177e4 LT |
37 | #include <asm/uaccess.h> |
38 | ||
39 | #include <acpi/acpi_bus.h> | |
40 | #include <acpi/acpi_drivers.h> | |
41 | ||
42 | #define ACPI_VIDEO_COMPONENT 0x08000000 | |
43 | #define ACPI_VIDEO_CLASS "video" | |
1da177e4 LT |
44 | #define ACPI_VIDEO_BUS_NAME "Video Bus" |
45 | #define ACPI_VIDEO_DEVICE_NAME "Video Device" | |
46 | #define ACPI_VIDEO_NOTIFY_SWITCH 0x80 | |
47 | #define ACPI_VIDEO_NOTIFY_PROBE 0x81 | |
48 | #define ACPI_VIDEO_NOTIFY_CYCLE 0x82 | |
49 | #define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83 | |
50 | #define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84 | |
51 | ||
f4715189 TT |
52 | #define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x85 |
53 | #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86 | |
54 | #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87 | |
55 | #define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x88 | |
56 | #define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x89 | |
1da177e4 | 57 | |
1da177e4 LT |
58 | #define ACPI_VIDEO_HEAD_INVALID (~0u - 1) |
59 | #define ACPI_VIDEO_HEAD_END (~0u) | |
2f3d000a | 60 | #define MAX_NAME_LEN 20 |
1da177e4 | 61 | |
82cae999 RZ |
62 | #define ACPI_VIDEO_DISPLAY_CRT 1 |
63 | #define ACPI_VIDEO_DISPLAY_TV 2 | |
64 | #define ACPI_VIDEO_DISPLAY_DVI 3 | |
65 | #define ACPI_VIDEO_DISPLAY_LCD 4 | |
66 | ||
1da177e4 | 67 | #define _COMPONENT ACPI_VIDEO_COMPONENT |
f52fd66d | 68 | ACPI_MODULE_NAME("video"); |
1da177e4 | 69 | |
f52fd66d | 70 | MODULE_AUTHOR("Bruno Ducrot"); |
7cda93e0 | 71 | MODULE_DESCRIPTION("ACPI Video Driver"); |
1da177e4 LT |
72 | MODULE_LICENSE("GPL"); |
73 | ||
4be44fcd LB |
74 | static int acpi_video_bus_add(struct acpi_device *device); |
75 | static int acpi_video_bus_remove(struct acpi_device *device, int type); | |
1da177e4 | 76 | |
1ba90e3a TR |
77 | static const struct acpi_device_id video_device_ids[] = { |
78 | {ACPI_VIDEO_HID, 0}, | |
79 | {"", 0}, | |
80 | }; | |
81 | MODULE_DEVICE_TABLE(acpi, video_device_ids); | |
82 | ||
1da177e4 | 83 | static struct acpi_driver acpi_video_bus = { |
c2b6705b | 84 | .name = "video", |
1da177e4 | 85 | .class = ACPI_VIDEO_CLASS, |
1ba90e3a | 86 | .ids = video_device_ids, |
1da177e4 LT |
87 | .ops = { |
88 | .add = acpi_video_bus_add, | |
89 | .remove = acpi_video_bus_remove, | |
4be44fcd | 90 | }, |
1da177e4 LT |
91 | }; |
92 | ||
93 | struct acpi_video_bus_flags { | |
4be44fcd LB |
94 | u8 multihead:1; /* can switch video heads */ |
95 | u8 rom:1; /* can retrieve a video rom */ | |
96 | u8 post:1; /* can configure the head to */ | |
97 | u8 reserved:5; | |
1da177e4 LT |
98 | }; |
99 | ||
100 | struct acpi_video_bus_cap { | |
4be44fcd LB |
101 | u8 _DOS:1; /*Enable/Disable output switching */ |
102 | u8 _DOD:1; /*Enumerate all devices attached to display adapter */ | |
103 | u8 _ROM:1; /*Get ROM Data */ | |
104 | u8 _GPD:1; /*Get POST Device */ | |
105 | u8 _SPD:1; /*Set POST Device */ | |
106 | u8 _VPO:1; /*Video POST Options */ | |
107 | u8 reserved:2; | |
1da177e4 LT |
108 | }; |
109 | ||
4be44fcd LB |
110 | struct acpi_video_device_attrib { |
111 | u32 display_index:4; /* A zero-based instance of the Display */ | |
98fb8fe1 | 112 | u32 display_port_attachment:4; /*This field differentiates the display type */ |
4be44fcd | 113 | u32 display_type:4; /*Describe the specific type in use */ |
98fb8fe1 | 114 | u32 vendor_specific:4; /*Chipset Vendor Specific */ |
4be44fcd LB |
115 | u32 bios_can_detect:1; /*BIOS can detect the device */ |
116 | u32 depend_on_vga:1; /*Non-VGA output device whose power is related to | |
117 | the VGA device. */ | |
118 | u32 pipe_id:3; /*For VGA multiple-head devices. */ | |
119 | u32 reserved:10; /*Must be 0 */ | |
120 | u32 device_id_scheme:1; /*Device ID Scheme */ | |
1da177e4 LT |
121 | }; |
122 | ||
123 | struct acpi_video_enumerated_device { | |
124 | union { | |
125 | u32 int_val; | |
4be44fcd | 126 | struct acpi_video_device_attrib attrib; |
1da177e4 LT |
127 | } value; |
128 | struct acpi_video_device *bind_info; | |
129 | }; | |
130 | ||
131 | struct acpi_video_bus { | |
e6afa0de | 132 | struct acpi_device *device; |
4be44fcd | 133 | u8 dos_setting; |
1da177e4 | 134 | struct acpi_video_enumerated_device *attached_array; |
4be44fcd LB |
135 | u8 attached_count; |
136 | struct acpi_video_bus_cap cap; | |
1da177e4 | 137 | struct acpi_video_bus_flags flags; |
4be44fcd LB |
138 | struct semaphore sem; |
139 | struct list_head video_device_list; | |
140 | struct proc_dir_entry *dir; | |
e9dab196 LY |
141 | struct input_dev *input; |
142 | char phys[32]; /* for input device */ | |
1da177e4 LT |
143 | }; |
144 | ||
145 | struct acpi_video_device_flags { | |
4be44fcd LB |
146 | u8 crt:1; |
147 | u8 lcd:1; | |
148 | u8 tvout:1; | |
82cae999 | 149 | u8 dvi:1; |
4be44fcd LB |
150 | u8 bios:1; |
151 | u8 unknown:1; | |
82cae999 | 152 | u8 reserved:2; |
1da177e4 LT |
153 | }; |
154 | ||
155 | struct acpi_video_device_cap { | |
4be44fcd LB |
156 | u8 _ADR:1; /*Return the unique ID */ |
157 | u8 _BCL:1; /*Query list of brightness control levels supported */ | |
158 | u8 _BCM:1; /*Set the brightness level */ | |
2f3d000a | 159 | u8 _BQC:1; /* Get current brightness level */ |
4be44fcd LB |
160 | u8 _DDC:1; /*Return the EDID for this device */ |
161 | u8 _DCS:1; /*Return status of output device */ | |
162 | u8 _DGS:1; /*Query graphics state */ | |
163 | u8 _DSS:1; /*Device state set */ | |
1da177e4 LT |
164 | }; |
165 | ||
166 | struct acpi_video_device_brightness { | |
4be44fcd LB |
167 | int curr; |
168 | int count; | |
169 | int *levels; | |
1da177e4 LT |
170 | }; |
171 | ||
172 | struct acpi_video_device { | |
4be44fcd LB |
173 | unsigned long device_id; |
174 | struct acpi_video_device_flags flags; | |
175 | struct acpi_video_device_cap cap; | |
176 | struct list_head entry; | |
177 | struct acpi_video_bus *video; | |
178 | struct acpi_device *dev; | |
1da177e4 | 179 | struct acpi_video_device_brightness *brightness; |
2f3d000a | 180 | struct backlight_device *backlight; |
23b0f015 | 181 | struct output_device *output_dev; |
1da177e4 LT |
182 | }; |
183 | ||
1da177e4 LT |
184 | /* bus */ |
185 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file); | |
186 | static struct file_operations acpi_video_bus_info_fops = { | |
4be44fcd LB |
187 | .open = acpi_video_bus_info_open_fs, |
188 | .read = seq_read, | |
189 | .llseek = seq_lseek, | |
190 | .release = single_release, | |
1da177e4 LT |
191 | }; |
192 | ||
193 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file); | |
194 | static struct file_operations acpi_video_bus_ROM_fops = { | |
4be44fcd LB |
195 | .open = acpi_video_bus_ROM_open_fs, |
196 | .read = seq_read, | |
197 | .llseek = seq_lseek, | |
198 | .release = single_release, | |
1da177e4 LT |
199 | }; |
200 | ||
4be44fcd LB |
201 | static int acpi_video_bus_POST_info_open_fs(struct inode *inode, |
202 | struct file *file); | |
1da177e4 | 203 | static struct file_operations acpi_video_bus_POST_info_fops = { |
4be44fcd LB |
204 | .open = acpi_video_bus_POST_info_open_fs, |
205 | .read = seq_read, | |
206 | .llseek = seq_lseek, | |
207 | .release = single_release, | |
1da177e4 LT |
208 | }; |
209 | ||
210 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file); | |
211 | static struct file_operations acpi_video_bus_POST_fops = { | |
4be44fcd LB |
212 | .open = acpi_video_bus_POST_open_fs, |
213 | .read = seq_read, | |
214 | .llseek = seq_lseek, | |
215 | .release = single_release, | |
1da177e4 LT |
216 | }; |
217 | ||
1da177e4 LT |
218 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file); |
219 | static struct file_operations acpi_video_bus_DOS_fops = { | |
4be44fcd LB |
220 | .open = acpi_video_bus_DOS_open_fs, |
221 | .read = seq_read, | |
222 | .llseek = seq_lseek, | |
223 | .release = single_release, | |
1da177e4 LT |
224 | }; |
225 | ||
226 | /* device */ | |
4be44fcd LB |
227 | static int acpi_video_device_info_open_fs(struct inode *inode, |
228 | struct file *file); | |
1da177e4 | 229 | static struct file_operations acpi_video_device_info_fops = { |
4be44fcd LB |
230 | .open = acpi_video_device_info_open_fs, |
231 | .read = seq_read, | |
232 | .llseek = seq_lseek, | |
233 | .release = single_release, | |
1da177e4 LT |
234 | }; |
235 | ||
4be44fcd LB |
236 | static int acpi_video_device_state_open_fs(struct inode *inode, |
237 | struct file *file); | |
1da177e4 | 238 | static struct file_operations acpi_video_device_state_fops = { |
4be44fcd LB |
239 | .open = acpi_video_device_state_open_fs, |
240 | .read = seq_read, | |
241 | .llseek = seq_lseek, | |
242 | .release = single_release, | |
1da177e4 LT |
243 | }; |
244 | ||
4be44fcd LB |
245 | static int acpi_video_device_brightness_open_fs(struct inode *inode, |
246 | struct file *file); | |
1da177e4 | 247 | static struct file_operations acpi_video_device_brightness_fops = { |
4be44fcd LB |
248 | .open = acpi_video_device_brightness_open_fs, |
249 | .read = seq_read, | |
250 | .llseek = seq_lseek, | |
251 | .release = single_release, | |
1da177e4 LT |
252 | }; |
253 | ||
4be44fcd LB |
254 | static int acpi_video_device_EDID_open_fs(struct inode *inode, |
255 | struct file *file); | |
1da177e4 | 256 | static struct file_operations acpi_video_device_EDID_fops = { |
4be44fcd LB |
257 | .open = acpi_video_device_EDID_open_fs, |
258 | .read = seq_read, | |
259 | .llseek = seq_lseek, | |
260 | .release = single_release, | |
1da177e4 LT |
261 | }; |
262 | ||
4be44fcd | 263 | static char device_decode[][30] = { |
1da177e4 LT |
264 | "motherboard VGA device", |
265 | "PCI VGA device", | |
266 | "AGP VGA device", | |
267 | "UNKNOWN", | |
268 | }; | |
269 | ||
4be44fcd LB |
270 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data); |
271 | static void acpi_video_device_rebind(struct acpi_video_bus *video); | |
272 | static void acpi_video_device_bind(struct acpi_video_bus *video, | |
273 | struct acpi_video_device *device); | |
1da177e4 | 274 | static int acpi_video_device_enumerate(struct acpi_video_bus *video); |
4be44fcd | 275 | static int acpi_video_switch_output(struct acpi_video_bus *video, int event); |
2f3d000a YL |
276 | static int acpi_video_device_lcd_set_level(struct acpi_video_device *device, |
277 | int level); | |
278 | static int acpi_video_device_lcd_get_level_current( | |
279 | struct acpi_video_device *device, | |
280 | unsigned long *level); | |
4be44fcd LB |
281 | static int acpi_video_get_next_level(struct acpi_video_device *device, |
282 | u32 level_current, u32 event); | |
283 | static void acpi_video_switch_brightness(struct acpi_video_device *device, | |
284 | int event); | |
23b0f015 LY |
285 | static int acpi_video_device_get_state(struct acpi_video_device *device, |
286 | unsigned long *state); | |
287 | static int acpi_video_output_get(struct output_device *od); | |
288 | static int acpi_video_device_set_state(struct acpi_video_device *device, int state); | |
1da177e4 | 289 | |
2f3d000a YL |
290 | /*backlight device sysfs support*/ |
291 | static int acpi_video_get_brightness(struct backlight_device *bd) | |
292 | { | |
293 | unsigned long cur_level; | |
294 | struct acpi_video_device *vd = | |
655bfd7a | 295 | (struct acpi_video_device *)bl_get_data(bd); |
2f3d000a YL |
296 | acpi_video_device_lcd_get_level_current(vd, &cur_level); |
297 | return (int) cur_level; | |
298 | } | |
299 | ||
300 | static int acpi_video_set_brightness(struct backlight_device *bd) | |
301 | { | |
599a52d1 | 302 | int request_level = bd->props.brightness; |
2f3d000a | 303 | struct acpi_video_device *vd = |
655bfd7a | 304 | (struct acpi_video_device *)bl_get_data(bd); |
2f3d000a YL |
305 | acpi_video_device_lcd_set_level(vd, request_level); |
306 | return 0; | |
307 | } | |
308 | ||
599a52d1 RP |
309 | static struct backlight_ops acpi_backlight_ops = { |
310 | .get_brightness = acpi_video_get_brightness, | |
311 | .update_status = acpi_video_set_brightness, | |
312 | }; | |
313 | ||
23b0f015 LY |
314 | /*video output device sysfs support*/ |
315 | static int acpi_video_output_get(struct output_device *od) | |
316 | { | |
317 | unsigned long state; | |
318 | struct acpi_video_device *vd = | |
60043428 | 319 | (struct acpi_video_device *)dev_get_drvdata(&od->dev); |
23b0f015 LY |
320 | acpi_video_device_get_state(vd, &state); |
321 | return (int)state; | |
322 | } | |
323 | ||
324 | static int acpi_video_output_set(struct output_device *od) | |
325 | { | |
326 | unsigned long state = od->request_state; | |
327 | struct acpi_video_device *vd= | |
60043428 | 328 | (struct acpi_video_device *)dev_get_drvdata(&od->dev); |
23b0f015 LY |
329 | return acpi_video_device_set_state(vd, state); |
330 | } | |
331 | ||
332 | static struct output_properties acpi_output_properties = { | |
333 | .set_state = acpi_video_output_set, | |
334 | .get_status = acpi_video_output_get, | |
335 | }; | |
1da177e4 LT |
336 | /* -------------------------------------------------------------------------- |
337 | Video Management | |
338 | -------------------------------------------------------------------------- */ | |
339 | ||
340 | /* device */ | |
341 | ||
342 | static int | |
4be44fcd | 343 | acpi_video_device_query(struct acpi_video_device *device, unsigned long *state) |
1da177e4 | 344 | { |
4be44fcd | 345 | int status; |
90130268 PM |
346 | |
347 | status = acpi_evaluate_integer(device->dev->handle, "_DGS", NULL, state); | |
1da177e4 | 348 | |
d550d98d | 349 | return status; |
1da177e4 LT |
350 | } |
351 | ||
352 | static int | |
4be44fcd LB |
353 | acpi_video_device_get_state(struct acpi_video_device *device, |
354 | unsigned long *state) | |
1da177e4 | 355 | { |
4be44fcd | 356 | int status; |
1da177e4 | 357 | |
90130268 | 358 | status = acpi_evaluate_integer(device->dev->handle, "_DCS", NULL, state); |
1da177e4 | 359 | |
d550d98d | 360 | return status; |
1da177e4 LT |
361 | } |
362 | ||
363 | static int | |
4be44fcd | 364 | acpi_video_device_set_state(struct acpi_video_device *device, int state) |
1da177e4 | 365 | { |
4be44fcd LB |
366 | int status; |
367 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
368 | struct acpi_object_list args = { 1, &arg0 }; | |
824b558b | 369 | unsigned long ret; |
1da177e4 | 370 | |
1da177e4 LT |
371 | |
372 | arg0.integer.value = state; | |
90130268 | 373 | status = acpi_evaluate_integer(device->dev->handle, "_DSS", &args, &ret); |
1da177e4 | 374 | |
d550d98d | 375 | return status; |
1da177e4 LT |
376 | } |
377 | ||
378 | static int | |
4be44fcd LB |
379 | acpi_video_device_lcd_query_levels(struct acpi_video_device *device, |
380 | union acpi_object **levels) | |
1da177e4 | 381 | { |
4be44fcd LB |
382 | int status; |
383 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
384 | union acpi_object *obj; | |
1da177e4 | 385 | |
1da177e4 LT |
386 | |
387 | *levels = NULL; | |
388 | ||
90130268 | 389 | status = acpi_evaluate_object(device->dev->handle, "_BCL", NULL, &buffer); |
1da177e4 | 390 | if (!ACPI_SUCCESS(status)) |
d550d98d | 391 | return status; |
4be44fcd | 392 | obj = (union acpi_object *)buffer.pointer; |
6665bda7 | 393 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { |
6468463a | 394 | printk(KERN_ERR PREFIX "Invalid _BCL data\n"); |
1da177e4 LT |
395 | status = -EFAULT; |
396 | goto err; | |
397 | } | |
398 | ||
399 | *levels = obj; | |
400 | ||
d550d98d | 401 | return 0; |
1da177e4 | 402 | |
4be44fcd | 403 | err: |
6044ec88 | 404 | kfree(buffer.pointer); |
1da177e4 | 405 | |
d550d98d | 406 | return status; |
1da177e4 LT |
407 | } |
408 | ||
409 | static int | |
4be44fcd | 410 | acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level) |
1da177e4 | 411 | { |
4be44fcd LB |
412 | int status; |
413 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
414 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 415 | |
1da177e4 LT |
416 | |
417 | arg0.integer.value = level; | |
90130268 | 418 | status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL); |
1da177e4 | 419 | |
d550d98d | 420 | return status; |
1da177e4 LT |
421 | } |
422 | ||
423 | static int | |
4be44fcd LB |
424 | acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, |
425 | unsigned long *level) | |
1da177e4 | 426 | { |
4be44fcd | 427 | int status; |
1da177e4 | 428 | |
90130268 | 429 | status = acpi_evaluate_integer(device->dev->handle, "_BQC", NULL, level); |
1da177e4 | 430 | |
d550d98d | 431 | return status; |
1da177e4 LT |
432 | } |
433 | ||
434 | static int | |
4be44fcd LB |
435 | acpi_video_device_EDID(struct acpi_video_device *device, |
436 | union acpi_object **edid, ssize_t length) | |
1da177e4 | 437 | { |
4be44fcd LB |
438 | int status; |
439 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
440 | union acpi_object *obj; | |
441 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
442 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 443 | |
1da177e4 LT |
444 | |
445 | *edid = NULL; | |
446 | ||
447 | if (!device) | |
d550d98d | 448 | return -ENODEV; |
1da177e4 LT |
449 | if (length == 128) |
450 | arg0.integer.value = 1; | |
451 | else if (length == 256) | |
452 | arg0.integer.value = 2; | |
453 | else | |
d550d98d | 454 | return -EINVAL; |
1da177e4 | 455 | |
90130268 | 456 | status = acpi_evaluate_object(device->dev->handle, "_DDC", &args, &buffer); |
1da177e4 | 457 | if (ACPI_FAILURE(status)) |
d550d98d | 458 | return -ENODEV; |
1da177e4 | 459 | |
50dd0969 | 460 | obj = buffer.pointer; |
1da177e4 LT |
461 | |
462 | if (obj && obj->type == ACPI_TYPE_BUFFER) | |
463 | *edid = obj; | |
464 | else { | |
6468463a | 465 | printk(KERN_ERR PREFIX "Invalid _DDC data\n"); |
1da177e4 LT |
466 | status = -EFAULT; |
467 | kfree(obj); | |
468 | } | |
469 | ||
d550d98d | 470 | return status; |
1da177e4 LT |
471 | } |
472 | ||
1da177e4 LT |
473 | /* bus */ |
474 | ||
475 | static int | |
4be44fcd | 476 | acpi_video_bus_set_POST(struct acpi_video_bus *video, unsigned long option) |
1da177e4 | 477 | { |
4be44fcd LB |
478 | int status; |
479 | unsigned long tmp; | |
480 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
481 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 482 | |
1da177e4 LT |
483 | |
484 | arg0.integer.value = option; | |
485 | ||
90130268 | 486 | status = acpi_evaluate_integer(video->device->handle, "_SPD", &args, &tmp); |
1da177e4 | 487 | if (ACPI_SUCCESS(status)) |
4be44fcd | 488 | status = tmp ? (-EINVAL) : (AE_OK); |
1da177e4 | 489 | |
d550d98d | 490 | return status; |
1da177e4 LT |
491 | } |
492 | ||
493 | static int | |
4be44fcd | 494 | acpi_video_bus_get_POST(struct acpi_video_bus *video, unsigned long *id) |
1da177e4 LT |
495 | { |
496 | int status; | |
497 | ||
90130268 | 498 | status = acpi_evaluate_integer(video->device->handle, "_GPD", NULL, id); |
1da177e4 | 499 | |
d550d98d | 500 | return status; |
1da177e4 LT |
501 | } |
502 | ||
503 | static int | |
4be44fcd LB |
504 | acpi_video_bus_POST_options(struct acpi_video_bus *video, |
505 | unsigned long *options) | |
1da177e4 | 506 | { |
4be44fcd | 507 | int status; |
1da177e4 | 508 | |
90130268 | 509 | status = acpi_evaluate_integer(video->device->handle, "_VPO", NULL, options); |
1da177e4 LT |
510 | *options &= 3; |
511 | ||
d550d98d | 512 | return status; |
1da177e4 LT |
513 | } |
514 | ||
515 | /* | |
516 | * Arg: | |
517 | * video : video bus device pointer | |
518 | * bios_flag : | |
519 | * 0. The system BIOS should NOT automatically switch(toggle) | |
520 | * the active display output. | |
521 | * 1. The system BIOS should automatically switch (toggle) the | |
98fb8fe1 | 522 | * active display output. No switch event. |
1da177e4 LT |
523 | * 2. The _DGS value should be locked. |
524 | * 3. The system BIOS should not automatically switch (toggle) the | |
525 | * active display output, but instead generate the display switch | |
526 | * event notify code. | |
527 | * lcd_flag : | |
528 | * 0. The system BIOS should automatically control the brightness level | |
98fb8fe1 | 529 | * of the LCD when the power changes from AC to DC |
1da177e4 | 530 | * 1. The system BIOS should NOT automatically control the brightness |
98fb8fe1 | 531 | * level of the LCD when the power changes from AC to DC. |
1da177e4 LT |
532 | * Return Value: |
533 | * -1 wrong arg. | |
534 | */ | |
535 | ||
536 | static int | |
4be44fcd | 537 | acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) |
1da177e4 | 538 | { |
4be44fcd LB |
539 | acpi_integer status = 0; |
540 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
541 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 542 | |
1da177e4 | 543 | |
4be44fcd | 544 | if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) { |
1da177e4 LT |
545 | status = -1; |
546 | goto Failed; | |
547 | } | |
548 | arg0.integer.value = (lcd_flag << 2) | bios_flag; | |
549 | video->dos_setting = arg0.integer.value; | |
90130268 | 550 | acpi_evaluate_object(video->device->handle, "_DOS", &args, NULL); |
1da177e4 | 551 | |
4be44fcd | 552 | Failed: |
d550d98d | 553 | return status; |
1da177e4 LT |
554 | } |
555 | ||
556 | /* | |
557 | * Arg: | |
558 | * device : video output device (LCD, CRT, ..) | |
559 | * | |
560 | * Return Value: | |
561 | * None | |
562 | * | |
98fb8fe1 | 563 | * Find out all required AML methods defined under the output |
1da177e4 LT |
564 | * device. |
565 | */ | |
566 | ||
4be44fcd | 567 | static void acpi_video_device_find_cap(struct acpi_video_device *device) |
1da177e4 | 568 | { |
1da177e4 LT |
569 | acpi_handle h_dummy1; |
570 | int i; | |
2f3d000a | 571 | u32 max_level = 0; |
1da177e4 LT |
572 | union acpi_object *obj = NULL; |
573 | struct acpi_video_device_brightness *br = NULL; | |
574 | ||
1da177e4 | 575 | |
4be44fcd | 576 | memset(&device->cap, 0, 4); |
1da177e4 | 577 | |
90130268 | 578 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) { |
1da177e4 LT |
579 | device->cap._ADR = 1; |
580 | } | |
90130268 | 581 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCL", &h_dummy1))) { |
4be44fcd | 582 | device->cap._BCL = 1; |
1da177e4 | 583 | } |
90130268 | 584 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCM", &h_dummy1))) { |
4be44fcd | 585 | device->cap._BCM = 1; |
1da177e4 | 586 | } |
2f3d000a YL |
587 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle,"_BQC",&h_dummy1))) |
588 | device->cap._BQC = 1; | |
90130268 | 589 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) { |
4be44fcd | 590 | device->cap._DDC = 1; |
1da177e4 | 591 | } |
90130268 | 592 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DCS", &h_dummy1))) { |
1da177e4 LT |
593 | device->cap._DCS = 1; |
594 | } | |
90130268 | 595 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DGS", &h_dummy1))) { |
1da177e4 LT |
596 | device->cap._DGS = 1; |
597 | } | |
90130268 | 598 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DSS", &h_dummy1))) { |
1da177e4 LT |
599 | device->cap._DSS = 1; |
600 | } | |
601 | ||
f70ac0e9 DK |
602 | if (ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) { |
603 | ||
604 | if (obj->package.count >= 2) { | |
605 | int count = 0; | |
606 | union acpi_object *o; | |
607 | ||
608 | br = kzalloc(sizeof(*br), GFP_KERNEL); | |
609 | if (!br) { | |
610 | printk(KERN_ERR "can't allocate memory\n"); | |
1da177e4 | 611 | } else { |
f70ac0e9 DK |
612 | br->levels = kmalloc(obj->package.count * |
613 | sizeof *(br->levels), GFP_KERNEL); | |
614 | if (!br->levels) | |
615 | goto out; | |
616 | ||
617 | for (i = 0; i < obj->package.count; i++) { | |
618 | o = (union acpi_object *)&obj->package. | |
619 | elements[i]; | |
620 | if (o->type != ACPI_TYPE_INTEGER) { | |
621 | printk(KERN_ERR PREFIX "Invalid data\n"); | |
622 | continue; | |
623 | } | |
624 | br->levels[count] = (u32) o->integer.value; | |
625 | ||
626 | if (br->levels[count] > max_level) | |
627 | max_level = br->levels[count]; | |
628 | count++; | |
629 | } | |
630 | out: | |
631 | if (count < 2) { | |
632 | kfree(br->levels); | |
633 | kfree(br); | |
634 | } else { | |
635 | br->count = count; | |
636 | device->brightness = br; | |
637 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | |
638 | "found %d brightness levels\n", | |
639 | count)); | |
640 | } | |
1da177e4 LT |
641 | } |
642 | } | |
f70ac0e9 DK |
643 | |
644 | } else { | |
645 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available LCD brightness level\n")); | |
1da177e4 LT |
646 | } |
647 | ||
d1dd0c23 | 648 | kfree(obj); |
1da177e4 | 649 | |
f70ac0e9 | 650 | if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){ |
2f3d000a YL |
651 | unsigned long tmp; |
652 | static int count = 0; | |
653 | char *name; | |
2f3d000a YL |
654 | name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); |
655 | if (!name) | |
656 | return; | |
657 | ||
2f3d000a | 658 | sprintf(name, "acpi_video%d", count++); |
2f3d000a | 659 | acpi_video_device_lcd_get_level_current(device, &tmp); |
2f3d000a | 660 | device->backlight = backlight_device_register(name, |
599a52d1 RP |
661 | NULL, device, &acpi_backlight_ops); |
662 | device->backlight->props.max_brightness = max_level; | |
663 | device->backlight->props.brightness = (int)tmp; | |
664 | backlight_update_status(device->backlight); | |
665 | ||
2f3d000a YL |
666 | kfree(name); |
667 | } | |
23b0f015 LY |
668 | if (device->cap._DCS && device->cap._DSS){ |
669 | static int count = 0; | |
670 | char *name; | |
671 | name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); | |
672 | if (!name) | |
673 | return; | |
674 | sprintf(name, "acpi_video%d", count++); | |
675 | device->output_dev = video_output_register(name, | |
676 | NULL, device, &acpi_output_properties); | |
677 | kfree(name); | |
678 | } | |
d550d98d | 679 | return; |
1da177e4 LT |
680 | } |
681 | ||
682 | /* | |
683 | * Arg: | |
684 | * device : video output device (VGA) | |
685 | * | |
686 | * Return Value: | |
687 | * None | |
688 | * | |
98fb8fe1 | 689 | * Find out all required AML methods defined under the video bus device. |
1da177e4 LT |
690 | */ |
691 | ||
4be44fcd | 692 | static void acpi_video_bus_find_cap(struct acpi_video_bus *video) |
1da177e4 | 693 | { |
4be44fcd | 694 | acpi_handle h_dummy1; |
1da177e4 | 695 | |
4be44fcd | 696 | memset(&video->cap, 0, 4); |
90130268 | 697 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) { |
1da177e4 LT |
698 | video->cap._DOS = 1; |
699 | } | |
90130268 | 700 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOD", &h_dummy1))) { |
1da177e4 LT |
701 | video->cap._DOD = 1; |
702 | } | |
90130268 | 703 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_ROM", &h_dummy1))) { |
1da177e4 LT |
704 | video->cap._ROM = 1; |
705 | } | |
90130268 | 706 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_GPD", &h_dummy1))) { |
1da177e4 LT |
707 | video->cap._GPD = 1; |
708 | } | |
90130268 | 709 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_SPD", &h_dummy1))) { |
1da177e4 LT |
710 | video->cap._SPD = 1; |
711 | } | |
90130268 | 712 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_VPO", &h_dummy1))) { |
1da177e4 LT |
713 | video->cap._VPO = 1; |
714 | } | |
715 | } | |
716 | ||
717 | /* | |
718 | * Check whether the video bus device has required AML method to | |
719 | * support the desired features | |
720 | */ | |
721 | ||
4be44fcd | 722 | static int acpi_video_bus_check(struct acpi_video_bus *video) |
1da177e4 | 723 | { |
4be44fcd | 724 | acpi_status status = -ENOENT; |
1da177e4 | 725 | |
1da177e4 LT |
726 | |
727 | if (!video) | |
d550d98d | 728 | return -EINVAL; |
1da177e4 LT |
729 | |
730 | /* Since there is no HID, CID and so on for VGA driver, we have | |
731 | * to check well known required nodes. | |
732 | */ | |
733 | ||
98fb8fe1 | 734 | /* Does this device support video switching? */ |
4be44fcd | 735 | if (video->cap._DOS) { |
1da177e4 LT |
736 | video->flags.multihead = 1; |
737 | status = 0; | |
738 | } | |
739 | ||
98fb8fe1 | 740 | /* Does this device support retrieving a video ROM? */ |
4be44fcd | 741 | if (video->cap._ROM) { |
1da177e4 LT |
742 | video->flags.rom = 1; |
743 | status = 0; | |
744 | } | |
745 | ||
98fb8fe1 | 746 | /* Does this device support configuring which video device to POST? */ |
4be44fcd | 747 | if (video->cap._GPD && video->cap._SPD && video->cap._VPO) { |
1da177e4 LT |
748 | video->flags.post = 1; |
749 | status = 0; | |
750 | } | |
751 | ||
d550d98d | 752 | return status; |
1da177e4 LT |
753 | } |
754 | ||
755 | /* -------------------------------------------------------------------------- | |
756 | FS Interface (/proc) | |
757 | -------------------------------------------------------------------------- */ | |
758 | ||
4be44fcd | 759 | static struct proc_dir_entry *acpi_video_dir; |
1da177e4 LT |
760 | |
761 | /* video devices */ | |
762 | ||
4be44fcd | 763 | static int acpi_video_device_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 764 | { |
50dd0969 | 765 | struct acpi_video_device *dev = seq->private; |
1da177e4 | 766 | |
1da177e4 LT |
767 | |
768 | if (!dev) | |
769 | goto end; | |
770 | ||
771 | seq_printf(seq, "device_id: 0x%04x\n", (u32) dev->device_id); | |
772 | seq_printf(seq, "type: "); | |
773 | if (dev->flags.crt) | |
774 | seq_printf(seq, "CRT\n"); | |
775 | else if (dev->flags.lcd) | |
776 | seq_printf(seq, "LCD\n"); | |
777 | else if (dev->flags.tvout) | |
778 | seq_printf(seq, "TVOUT\n"); | |
82cae999 RZ |
779 | else if (dev->flags.dvi) |
780 | seq_printf(seq, "DVI\n"); | |
1da177e4 LT |
781 | else |
782 | seq_printf(seq, "UNKNOWN\n"); | |
783 | ||
4be44fcd | 784 | seq_printf(seq, "known by bios: %s\n", dev->flags.bios ? "yes" : "no"); |
1da177e4 | 785 | |
4be44fcd | 786 | end: |
d550d98d | 787 | return 0; |
1da177e4 LT |
788 | } |
789 | ||
790 | static int | |
4be44fcd | 791 | acpi_video_device_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
792 | { |
793 | return single_open(file, acpi_video_device_info_seq_show, | |
794 | PDE(inode)->data); | |
795 | } | |
796 | ||
4be44fcd | 797 | static int acpi_video_device_state_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 798 | { |
4be44fcd | 799 | int status; |
50dd0969 | 800 | struct acpi_video_device *dev = seq->private; |
4be44fcd | 801 | unsigned long state; |
1da177e4 | 802 | |
1da177e4 LT |
803 | |
804 | if (!dev) | |
805 | goto end; | |
806 | ||
807 | status = acpi_video_device_get_state(dev, &state); | |
808 | seq_printf(seq, "state: "); | |
809 | if (ACPI_SUCCESS(status)) | |
810 | seq_printf(seq, "0x%02lx\n", state); | |
811 | else | |
812 | seq_printf(seq, "<not supported>\n"); | |
813 | ||
814 | status = acpi_video_device_query(dev, &state); | |
815 | seq_printf(seq, "query: "); | |
816 | if (ACPI_SUCCESS(status)) | |
817 | seq_printf(seq, "0x%02lx\n", state); | |
818 | else | |
819 | seq_printf(seq, "<not supported>\n"); | |
820 | ||
4be44fcd | 821 | end: |
d550d98d | 822 | return 0; |
1da177e4 LT |
823 | } |
824 | ||
825 | static int | |
4be44fcd | 826 | acpi_video_device_state_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
827 | { |
828 | return single_open(file, acpi_video_device_state_seq_show, | |
829 | PDE(inode)->data); | |
830 | } | |
831 | ||
832 | static ssize_t | |
4be44fcd LB |
833 | acpi_video_device_write_state(struct file *file, |
834 | const char __user * buffer, | |
835 | size_t count, loff_t * data) | |
1da177e4 | 836 | { |
4be44fcd | 837 | int status; |
50dd0969 JE |
838 | struct seq_file *m = file->private_data; |
839 | struct acpi_video_device *dev = m->private; | |
4be44fcd LB |
840 | char str[12] = { 0 }; |
841 | u32 state = 0; | |
1da177e4 | 842 | |
1da177e4 LT |
843 | |
844 | if (!dev || count + 1 > sizeof str) | |
d550d98d | 845 | return -EINVAL; |
1da177e4 LT |
846 | |
847 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 848 | return -EFAULT; |
1da177e4 LT |
849 | |
850 | str[count] = 0; | |
851 | state = simple_strtoul(str, NULL, 0); | |
4be44fcd | 852 | state &= ((1ul << 31) | (1ul << 30) | (1ul << 0)); |
1da177e4 LT |
853 | |
854 | status = acpi_video_device_set_state(dev, state); | |
855 | ||
856 | if (status) | |
d550d98d | 857 | return -EFAULT; |
1da177e4 | 858 | |
d550d98d | 859 | return count; |
1da177e4 LT |
860 | } |
861 | ||
862 | static int | |
4be44fcd | 863 | acpi_video_device_brightness_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 864 | { |
50dd0969 | 865 | struct acpi_video_device *dev = seq->private; |
4be44fcd | 866 | int i; |
1da177e4 | 867 | |
1da177e4 LT |
868 | |
869 | if (!dev || !dev->brightness) { | |
870 | seq_printf(seq, "<not supported>\n"); | |
d550d98d | 871 | return 0; |
1da177e4 LT |
872 | } |
873 | ||
874 | seq_printf(seq, "levels: "); | |
875 | for (i = 0; i < dev->brightness->count; i++) | |
876 | seq_printf(seq, " %d", dev->brightness->levels[i]); | |
877 | seq_printf(seq, "\ncurrent: %d\n", dev->brightness->curr); | |
878 | ||
d550d98d | 879 | return 0; |
1da177e4 LT |
880 | } |
881 | ||
882 | static int | |
4be44fcd | 883 | acpi_video_device_brightness_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
884 | { |
885 | return single_open(file, acpi_video_device_brightness_seq_show, | |
886 | PDE(inode)->data); | |
887 | } | |
888 | ||
889 | static ssize_t | |
4be44fcd LB |
890 | acpi_video_device_write_brightness(struct file *file, |
891 | const char __user * buffer, | |
892 | size_t count, loff_t * data) | |
1da177e4 | 893 | { |
50dd0969 JE |
894 | struct seq_file *m = file->private_data; |
895 | struct acpi_video_device *dev = m->private; | |
4be44fcd LB |
896 | char str[4] = { 0 }; |
897 | unsigned int level = 0; | |
898 | int i; | |
1da177e4 | 899 | |
1da177e4 | 900 | |
59d399d3 | 901 | if (!dev || !dev->brightness || count + 1 > sizeof str) |
d550d98d | 902 | return -EINVAL; |
1da177e4 LT |
903 | |
904 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 905 | return -EFAULT; |
1da177e4 LT |
906 | |
907 | str[count] = 0; | |
908 | level = simple_strtoul(str, NULL, 0); | |
4be44fcd | 909 | |
1da177e4 | 910 | if (level > 100) |
d550d98d | 911 | return -EFAULT; |
1da177e4 | 912 | |
98fb8fe1 | 913 | /* validate through the list of available levels */ |
1da177e4 LT |
914 | for (i = 0; i < dev->brightness->count; i++) |
915 | if (level == dev->brightness->levels[i]) { | |
4be44fcd LB |
916 | if (ACPI_SUCCESS |
917 | (acpi_video_device_lcd_set_level(dev, level))) | |
1da177e4 LT |
918 | dev->brightness->curr = level; |
919 | break; | |
920 | } | |
921 | ||
d550d98d | 922 | return count; |
1da177e4 LT |
923 | } |
924 | ||
4be44fcd | 925 | static int acpi_video_device_EDID_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 926 | { |
50dd0969 | 927 | struct acpi_video_device *dev = seq->private; |
4be44fcd LB |
928 | int status; |
929 | int i; | |
930 | union acpi_object *edid = NULL; | |
1da177e4 | 931 | |
1da177e4 LT |
932 | |
933 | if (!dev) | |
934 | goto out; | |
935 | ||
4be44fcd | 936 | status = acpi_video_device_EDID(dev, &edid, 128); |
1da177e4 | 937 | if (ACPI_FAILURE(status)) { |
4be44fcd | 938 | status = acpi_video_device_EDID(dev, &edid, 256); |
1da177e4 LT |
939 | } |
940 | ||
941 | if (ACPI_FAILURE(status)) { | |
942 | goto out; | |
943 | } | |
944 | ||
945 | if (edid && edid->type == ACPI_TYPE_BUFFER) { | |
946 | for (i = 0; i < edid->buffer.length; i++) | |
947 | seq_putc(seq, edid->buffer.pointer[i]); | |
948 | } | |
949 | ||
4be44fcd | 950 | out: |
1da177e4 LT |
951 | if (!edid) |
952 | seq_printf(seq, "<not supported>\n"); | |
953 | else | |
954 | kfree(edid); | |
955 | ||
d550d98d | 956 | return 0; |
1da177e4 LT |
957 | } |
958 | ||
959 | static int | |
4be44fcd | 960 | acpi_video_device_EDID_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
961 | { |
962 | return single_open(file, acpi_video_device_EDID_seq_show, | |
963 | PDE(inode)->data); | |
964 | } | |
965 | ||
4be44fcd | 966 | static int acpi_video_device_add_fs(struct acpi_device *device) |
1da177e4 | 967 | { |
4be44fcd | 968 | struct proc_dir_entry *entry = NULL; |
1da177e4 LT |
969 | struct acpi_video_device *vid_dev; |
970 | ||
1da177e4 LT |
971 | |
972 | if (!device) | |
d550d98d | 973 | return -ENODEV; |
1da177e4 | 974 | |
50dd0969 | 975 | vid_dev = acpi_driver_data(device); |
1da177e4 | 976 | if (!vid_dev) |
d550d98d | 977 | return -ENODEV; |
1da177e4 LT |
978 | |
979 | if (!acpi_device_dir(device)) { | |
980 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), | |
4be44fcd | 981 | vid_dev->video->dir); |
1da177e4 | 982 | if (!acpi_device_dir(device)) |
d550d98d | 983 | return -ENODEV; |
1da177e4 LT |
984 | acpi_device_dir(device)->owner = THIS_MODULE; |
985 | } | |
986 | ||
987 | /* 'info' [R] */ | |
988 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); | |
989 | if (!entry) | |
d550d98d | 990 | return -ENODEV; |
1da177e4 LT |
991 | else { |
992 | entry->proc_fops = &acpi_video_device_info_fops; | |
993 | entry->data = acpi_driver_data(device); | |
994 | entry->owner = THIS_MODULE; | |
995 | } | |
996 | ||
997 | /* 'state' [R/W] */ | |
4be44fcd LB |
998 | entry = |
999 | create_proc_entry("state", S_IFREG | S_IRUGO | S_IWUSR, | |
1000 | acpi_device_dir(device)); | |
1da177e4 | 1001 | if (!entry) |
d550d98d | 1002 | return -ENODEV; |
1da177e4 | 1003 | else { |
d479e908 | 1004 | acpi_video_device_state_fops.write = acpi_video_device_write_state; |
1da177e4 | 1005 | entry->proc_fops = &acpi_video_device_state_fops; |
1da177e4 LT |
1006 | entry->data = acpi_driver_data(device); |
1007 | entry->owner = THIS_MODULE; | |
1008 | } | |
1009 | ||
1010 | /* 'brightness' [R/W] */ | |
4be44fcd LB |
1011 | entry = |
1012 | create_proc_entry("brightness", S_IFREG | S_IRUGO | S_IWUSR, | |
1013 | acpi_device_dir(device)); | |
1da177e4 | 1014 | if (!entry) |
d550d98d | 1015 | return -ENODEV; |
1da177e4 | 1016 | else { |
d479e908 | 1017 | acpi_video_device_brightness_fops.write = acpi_video_device_write_brightness; |
1da177e4 | 1018 | entry->proc_fops = &acpi_video_device_brightness_fops; |
1da177e4 LT |
1019 | entry->data = acpi_driver_data(device); |
1020 | entry->owner = THIS_MODULE; | |
1021 | } | |
1022 | ||
1023 | /* 'EDID' [R] */ | |
1024 | entry = create_proc_entry("EDID", S_IRUGO, acpi_device_dir(device)); | |
1025 | if (!entry) | |
d550d98d | 1026 | return -ENODEV; |
1da177e4 LT |
1027 | else { |
1028 | entry->proc_fops = &acpi_video_device_EDID_fops; | |
1029 | entry->data = acpi_driver_data(device); | |
1030 | entry->owner = THIS_MODULE; | |
1031 | } | |
1032 | ||
d550d98d | 1033 | return 0; |
1da177e4 LT |
1034 | } |
1035 | ||
4be44fcd | 1036 | static int acpi_video_device_remove_fs(struct acpi_device *device) |
1da177e4 LT |
1037 | { |
1038 | struct acpi_video_device *vid_dev; | |
1da177e4 | 1039 | |
50dd0969 | 1040 | vid_dev = acpi_driver_data(device); |
1da177e4 | 1041 | if (!vid_dev || !vid_dev->video || !vid_dev->video->dir) |
d550d98d | 1042 | return -ENODEV; |
1da177e4 LT |
1043 | |
1044 | if (acpi_device_dir(device)) { | |
1045 | remove_proc_entry("info", acpi_device_dir(device)); | |
1046 | remove_proc_entry("state", acpi_device_dir(device)); | |
1047 | remove_proc_entry("brightness", acpi_device_dir(device)); | |
1048 | remove_proc_entry("EDID", acpi_device_dir(device)); | |
4be44fcd | 1049 | remove_proc_entry(acpi_device_bid(device), vid_dev->video->dir); |
1da177e4 LT |
1050 | acpi_device_dir(device) = NULL; |
1051 | } | |
1052 | ||
d550d98d | 1053 | return 0; |
1da177e4 LT |
1054 | } |
1055 | ||
1da177e4 | 1056 | /* video bus */ |
4be44fcd | 1057 | static int acpi_video_bus_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1058 | { |
50dd0969 | 1059 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1060 | |
1da177e4 LT |
1061 | |
1062 | if (!video) | |
1063 | goto end; | |
1064 | ||
1065 | seq_printf(seq, "Switching heads: %s\n", | |
4be44fcd | 1066 | video->flags.multihead ? "yes" : "no"); |
1da177e4 | 1067 | seq_printf(seq, "Video ROM: %s\n", |
4be44fcd | 1068 | video->flags.rom ? "yes" : "no"); |
1da177e4 | 1069 | seq_printf(seq, "Device to be POSTed on boot: %s\n", |
4be44fcd | 1070 | video->flags.post ? "yes" : "no"); |
1da177e4 | 1071 | |
4be44fcd | 1072 | end: |
d550d98d | 1073 | return 0; |
1da177e4 LT |
1074 | } |
1075 | ||
4be44fcd | 1076 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1077 | { |
4be44fcd LB |
1078 | return single_open(file, acpi_video_bus_info_seq_show, |
1079 | PDE(inode)->data); | |
1da177e4 LT |
1080 | } |
1081 | ||
4be44fcd | 1082 | static int acpi_video_bus_ROM_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1083 | { |
50dd0969 | 1084 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1085 | |
1da177e4 LT |
1086 | |
1087 | if (!video) | |
1088 | goto end; | |
1089 | ||
1090 | printk(KERN_INFO PREFIX "Please implement %s\n", __FUNCTION__); | |
1091 | seq_printf(seq, "<TODO>\n"); | |
1092 | ||
4be44fcd | 1093 | end: |
d550d98d | 1094 | return 0; |
1da177e4 LT |
1095 | } |
1096 | ||
4be44fcd | 1097 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1098 | { |
1099 | return single_open(file, acpi_video_bus_ROM_seq_show, PDE(inode)->data); | |
1100 | } | |
1101 | ||
4be44fcd | 1102 | static int acpi_video_bus_POST_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1103 | { |
50dd0969 | 1104 | struct acpi_video_bus *video = seq->private; |
4be44fcd LB |
1105 | unsigned long options; |
1106 | int status; | |
1da177e4 | 1107 | |
1da177e4 LT |
1108 | |
1109 | if (!video) | |
1110 | goto end; | |
1111 | ||
1112 | status = acpi_video_bus_POST_options(video, &options); | |
1113 | if (ACPI_SUCCESS(status)) { | |
1114 | if (!(options & 1)) { | |
4be44fcd LB |
1115 | printk(KERN_WARNING PREFIX |
1116 | "The motherboard VGA device is not listed as a possible POST device.\n"); | |
1117 | printk(KERN_WARNING PREFIX | |
98fb8fe1 | 1118 | "This indicates a BIOS bug. Please contact the manufacturer.\n"); |
1da177e4 LT |
1119 | } |
1120 | printk("%lx\n", options); | |
98fb8fe1 | 1121 | seq_printf(seq, "can POST: <integrated video>"); |
1da177e4 LT |
1122 | if (options & 2) |
1123 | seq_printf(seq, " <PCI video>"); | |
1124 | if (options & 4) | |
1125 | seq_printf(seq, " <AGP video>"); | |
1126 | seq_putc(seq, '\n'); | |
1127 | } else | |
1128 | seq_printf(seq, "<not supported>\n"); | |
4be44fcd | 1129 | end: |
d550d98d | 1130 | return 0; |
1da177e4 LT |
1131 | } |
1132 | ||
1133 | static int | |
4be44fcd | 1134 | acpi_video_bus_POST_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1135 | { |
4be44fcd LB |
1136 | return single_open(file, acpi_video_bus_POST_info_seq_show, |
1137 | PDE(inode)->data); | |
1da177e4 LT |
1138 | } |
1139 | ||
4be44fcd | 1140 | static int acpi_video_bus_POST_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1141 | { |
50dd0969 | 1142 | struct acpi_video_bus *video = seq->private; |
4be44fcd LB |
1143 | int status; |
1144 | unsigned long id; | |
1da177e4 | 1145 | |
1da177e4 LT |
1146 | |
1147 | if (!video) | |
1148 | goto end; | |
1149 | ||
4be44fcd | 1150 | status = acpi_video_bus_get_POST(video, &id); |
1da177e4 LT |
1151 | if (!ACPI_SUCCESS(status)) { |
1152 | seq_printf(seq, "<not supported>\n"); | |
1153 | goto end; | |
1154 | } | |
98fb8fe1 | 1155 | seq_printf(seq, "device POSTed is <%s>\n", device_decode[id & 3]); |
1da177e4 | 1156 | |
4be44fcd | 1157 | end: |
d550d98d | 1158 | return 0; |
1da177e4 LT |
1159 | } |
1160 | ||
4be44fcd | 1161 | static int acpi_video_bus_DOS_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1162 | { |
50dd0969 | 1163 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1164 | |
1da177e4 | 1165 | |
4be44fcd | 1166 | seq_printf(seq, "DOS setting: <%d>\n", video->dos_setting); |
1da177e4 | 1167 | |
d550d98d | 1168 | return 0; |
1da177e4 LT |
1169 | } |
1170 | ||
4be44fcd | 1171 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1172 | { |
4be44fcd LB |
1173 | return single_open(file, acpi_video_bus_POST_seq_show, |
1174 | PDE(inode)->data); | |
1da177e4 LT |
1175 | } |
1176 | ||
4be44fcd | 1177 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1178 | { |
1179 | return single_open(file, acpi_video_bus_DOS_seq_show, PDE(inode)->data); | |
1180 | } | |
1181 | ||
1182 | static ssize_t | |
4be44fcd LB |
1183 | acpi_video_bus_write_POST(struct file *file, |
1184 | const char __user * buffer, | |
1185 | size_t count, loff_t * data) | |
1da177e4 | 1186 | { |
4be44fcd | 1187 | int status; |
50dd0969 JE |
1188 | struct seq_file *m = file->private_data; |
1189 | struct acpi_video_bus *video = m->private; | |
4be44fcd LB |
1190 | char str[12] = { 0 }; |
1191 | unsigned long opt, options; | |
1da177e4 | 1192 | |
1da177e4 | 1193 | |
1da177e4 | 1194 | if (!video || count + 1 > sizeof str) |
d550d98d | 1195 | return -EINVAL; |
1da177e4 LT |
1196 | |
1197 | status = acpi_video_bus_POST_options(video, &options); | |
1198 | if (!ACPI_SUCCESS(status)) | |
d550d98d | 1199 | return -EINVAL; |
1da177e4 LT |
1200 | |
1201 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 1202 | return -EFAULT; |
1da177e4 LT |
1203 | |
1204 | str[count] = 0; | |
1205 | opt = strtoul(str, NULL, 0); | |
1206 | if (opt > 3) | |
d550d98d | 1207 | return -EFAULT; |
1da177e4 | 1208 | |
98fb8fe1 | 1209 | /* just in case an OEM 'forgot' the motherboard... */ |
1da177e4 LT |
1210 | options |= 1; |
1211 | ||
1212 | if (options & (1ul << opt)) { | |
4be44fcd | 1213 | status = acpi_video_bus_set_POST(video, opt); |
1da177e4 | 1214 | if (!ACPI_SUCCESS(status)) |
d550d98d | 1215 | return -EFAULT; |
1da177e4 LT |
1216 | |
1217 | } | |
1218 | ||
d550d98d | 1219 | return count; |
1da177e4 LT |
1220 | } |
1221 | ||
1222 | static ssize_t | |
4be44fcd LB |
1223 | acpi_video_bus_write_DOS(struct file *file, |
1224 | const char __user * buffer, | |
1225 | size_t count, loff_t * data) | |
1da177e4 | 1226 | { |
4be44fcd | 1227 | int status; |
50dd0969 JE |
1228 | struct seq_file *m = file->private_data; |
1229 | struct acpi_video_bus *video = m->private; | |
4be44fcd LB |
1230 | char str[12] = { 0 }; |
1231 | unsigned long opt; | |
1da177e4 | 1232 | |
1da177e4 | 1233 | |
1da177e4 | 1234 | if (!video || count + 1 > sizeof str) |
d550d98d | 1235 | return -EINVAL; |
1da177e4 LT |
1236 | |
1237 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 1238 | return -EFAULT; |
1da177e4 LT |
1239 | |
1240 | str[count] = 0; | |
1241 | opt = strtoul(str, NULL, 0); | |
1242 | if (opt > 7) | |
d550d98d | 1243 | return -EFAULT; |
1da177e4 | 1244 | |
4be44fcd | 1245 | status = acpi_video_bus_DOS(video, opt & 0x3, (opt & 0x4) >> 2); |
1da177e4 LT |
1246 | |
1247 | if (!ACPI_SUCCESS(status)) | |
d550d98d | 1248 | return -EFAULT; |
1da177e4 | 1249 | |
d550d98d | 1250 | return count; |
1da177e4 LT |
1251 | } |
1252 | ||
4be44fcd | 1253 | static int acpi_video_bus_add_fs(struct acpi_device *device) |
1da177e4 | 1254 | { |
4be44fcd LB |
1255 | struct proc_dir_entry *entry = NULL; |
1256 | struct acpi_video_bus *video; | |
1da177e4 | 1257 | |
1da177e4 | 1258 | |
50dd0969 | 1259 | video = acpi_driver_data(device); |
1da177e4 LT |
1260 | |
1261 | if (!acpi_device_dir(device)) { | |
1262 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), | |
4be44fcd | 1263 | acpi_video_dir); |
1da177e4 | 1264 | if (!acpi_device_dir(device)) |
d550d98d | 1265 | return -ENODEV; |
1da177e4 LT |
1266 | video->dir = acpi_device_dir(device); |
1267 | acpi_device_dir(device)->owner = THIS_MODULE; | |
1268 | } | |
1269 | ||
1270 | /* 'info' [R] */ | |
1271 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); | |
1272 | if (!entry) | |
d550d98d | 1273 | return -ENODEV; |
1da177e4 LT |
1274 | else { |
1275 | entry->proc_fops = &acpi_video_bus_info_fops; | |
1276 | entry->data = acpi_driver_data(device); | |
1277 | entry->owner = THIS_MODULE; | |
1278 | } | |
1279 | ||
1280 | /* 'ROM' [R] */ | |
1281 | entry = create_proc_entry("ROM", S_IRUGO, acpi_device_dir(device)); | |
1282 | if (!entry) | |
d550d98d | 1283 | return -ENODEV; |
1da177e4 LT |
1284 | else { |
1285 | entry->proc_fops = &acpi_video_bus_ROM_fops; | |
1286 | entry->data = acpi_driver_data(device); | |
1287 | entry->owner = THIS_MODULE; | |
1288 | } | |
1289 | ||
1290 | /* 'POST_info' [R] */ | |
4be44fcd LB |
1291 | entry = |
1292 | create_proc_entry("POST_info", S_IRUGO, acpi_device_dir(device)); | |
1da177e4 | 1293 | if (!entry) |
d550d98d | 1294 | return -ENODEV; |
1da177e4 LT |
1295 | else { |
1296 | entry->proc_fops = &acpi_video_bus_POST_info_fops; | |
1297 | entry->data = acpi_driver_data(device); | |
1298 | entry->owner = THIS_MODULE; | |
1299 | } | |
1300 | ||
1301 | /* 'POST' [R/W] */ | |
4be44fcd LB |
1302 | entry = |
1303 | create_proc_entry("POST", S_IFREG | S_IRUGO | S_IRUSR, | |
1304 | acpi_device_dir(device)); | |
1da177e4 | 1305 | if (!entry) |
d550d98d | 1306 | return -ENODEV; |
1da177e4 | 1307 | else { |
d479e908 | 1308 | acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST; |
1da177e4 | 1309 | entry->proc_fops = &acpi_video_bus_POST_fops; |
1da177e4 LT |
1310 | entry->data = acpi_driver_data(device); |
1311 | entry->owner = THIS_MODULE; | |
1312 | } | |
1313 | ||
1314 | /* 'DOS' [R/W] */ | |
4be44fcd LB |
1315 | entry = |
1316 | create_proc_entry("DOS", S_IFREG | S_IRUGO | S_IRUSR, | |
1317 | acpi_device_dir(device)); | |
1da177e4 | 1318 | if (!entry) |
d550d98d | 1319 | return -ENODEV; |
1da177e4 | 1320 | else { |
d479e908 | 1321 | acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS; |
1da177e4 | 1322 | entry->proc_fops = &acpi_video_bus_DOS_fops; |
1da177e4 LT |
1323 | entry->data = acpi_driver_data(device); |
1324 | entry->owner = THIS_MODULE; | |
1325 | } | |
1326 | ||
d550d98d | 1327 | return 0; |
1da177e4 LT |
1328 | } |
1329 | ||
4be44fcd | 1330 | static int acpi_video_bus_remove_fs(struct acpi_device *device) |
1da177e4 | 1331 | { |
4be44fcd | 1332 | struct acpi_video_bus *video; |
1da177e4 | 1333 | |
1da177e4 | 1334 | |
50dd0969 | 1335 | video = acpi_driver_data(device); |
1da177e4 LT |
1336 | |
1337 | if (acpi_device_dir(device)) { | |
1338 | remove_proc_entry("info", acpi_device_dir(device)); | |
1339 | remove_proc_entry("ROM", acpi_device_dir(device)); | |
1340 | remove_proc_entry("POST_info", acpi_device_dir(device)); | |
1341 | remove_proc_entry("POST", acpi_device_dir(device)); | |
1342 | remove_proc_entry("DOS", acpi_device_dir(device)); | |
4be44fcd | 1343 | remove_proc_entry(acpi_device_bid(device), acpi_video_dir); |
1da177e4 LT |
1344 | acpi_device_dir(device) = NULL; |
1345 | } | |
1346 | ||
d550d98d | 1347 | return 0; |
1da177e4 LT |
1348 | } |
1349 | ||
1350 | /* -------------------------------------------------------------------------- | |
1351 | Driver Interface | |
1352 | -------------------------------------------------------------------------- */ | |
1353 | ||
1354 | /* device interface */ | |
82cae999 RZ |
1355 | static struct acpi_video_device_attrib* |
1356 | acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id) | |
1357 | { | |
1358 | int count; | |
1359 | ||
1360 | for(count = 0; count < video->attached_count; count++) | |
1361 | if((video->attached_array[count].value.int_val & 0xffff) == device_id) | |
1362 | return &(video->attached_array[count].value.attrib); | |
1363 | return NULL; | |
1364 | } | |
1da177e4 LT |
1365 | |
1366 | static int | |
4be44fcd LB |
1367 | acpi_video_bus_get_one_device(struct acpi_device *device, |
1368 | struct acpi_video_bus *video) | |
1da177e4 | 1369 | { |
4be44fcd | 1370 | unsigned long device_id; |
973bf491 | 1371 | int status; |
4be44fcd | 1372 | struct acpi_video_device *data; |
82cae999 | 1373 | struct acpi_video_device_attrib* attribute; |
1da177e4 LT |
1374 | |
1375 | if (!device || !video) | |
d550d98d | 1376 | return -EINVAL; |
1da177e4 | 1377 | |
4be44fcd LB |
1378 | status = |
1379 | acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id); | |
1da177e4 LT |
1380 | if (ACPI_SUCCESS(status)) { |
1381 | ||
36bcbec7 | 1382 | data = kzalloc(sizeof(struct acpi_video_device), GFP_KERNEL); |
1da177e4 | 1383 | if (!data) |
d550d98d | 1384 | return -ENOMEM; |
1da177e4 | 1385 | |
1da177e4 LT |
1386 | strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME); |
1387 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); | |
1388 | acpi_driver_data(device) = data; | |
1389 | ||
1390 | data->device_id = device_id; | |
1391 | data->video = video; | |
1392 | data->dev = device; | |
1393 | ||
82cae999 RZ |
1394 | attribute = acpi_video_get_device_attr(video, device_id); |
1395 | ||
1396 | if((attribute != NULL) && attribute->device_id_scheme) { | |
1397 | switch (attribute->display_type) { | |
1398 | case ACPI_VIDEO_DISPLAY_CRT: | |
1399 | data->flags.crt = 1; | |
1400 | break; | |
1401 | case ACPI_VIDEO_DISPLAY_TV: | |
1402 | data->flags.tvout = 1; | |
1403 | break; | |
1404 | case ACPI_VIDEO_DISPLAY_DVI: | |
1405 | data->flags.dvi = 1; | |
1406 | break; | |
1407 | case ACPI_VIDEO_DISPLAY_LCD: | |
1408 | data->flags.lcd = 1; | |
1409 | break; | |
1410 | default: | |
1411 | data->flags.unknown = 1; | |
1412 | break; | |
1413 | } | |
1414 | if(attribute->bios_can_detect) | |
1415 | data->flags.bios = 1; | |
1416 | } else | |
1da177e4 | 1417 | data->flags.unknown = 1; |
4be44fcd | 1418 | |
1da177e4 LT |
1419 | acpi_video_device_bind(video, data); |
1420 | acpi_video_device_find_cap(data); | |
1421 | ||
90130268 | 1422 | status = acpi_install_notify_handler(device->handle, |
4be44fcd LB |
1423 | ACPI_DEVICE_NOTIFY, |
1424 | acpi_video_device_notify, | |
1425 | data); | |
1da177e4 LT |
1426 | if (ACPI_FAILURE(status)) { |
1427 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, | |
4be44fcd | 1428 | "Error installing notify handler\n")); |
973bf491 YL |
1429 | if(data->brightness) |
1430 | kfree(data->brightness->levels); | |
1431 | kfree(data->brightness); | |
1432 | kfree(data); | |
1433 | return -ENODEV; | |
1da177e4 LT |
1434 | } |
1435 | ||
1436 | down(&video->sem); | |
1437 | list_add_tail(&data->entry, &video->video_device_list); | |
1438 | up(&video->sem); | |
1439 | ||
1440 | acpi_video_device_add_fs(device); | |
1441 | ||
d550d98d | 1442 | return 0; |
1da177e4 LT |
1443 | } |
1444 | ||
d550d98d | 1445 | return -ENOENT; |
1da177e4 LT |
1446 | } |
1447 | ||
1448 | /* | |
1449 | * Arg: | |
1450 | * video : video bus device | |
1451 | * | |
1452 | * Return: | |
1453 | * none | |
1454 | * | |
1455 | * Enumerate the video device list of the video bus, | |
1456 | * bind the ids with the corresponding video devices | |
1457 | * under the video bus. | |
4be44fcd | 1458 | */ |
1da177e4 | 1459 | |
4be44fcd | 1460 | static void acpi_video_device_rebind(struct acpi_video_bus *video) |
1da177e4 | 1461 | { |
4be44fcd | 1462 | struct list_head *node, *next; |
1da177e4 | 1463 | list_for_each_safe(node, next, &video->video_device_list) { |
4be44fcd LB |
1464 | struct acpi_video_device *dev = |
1465 | container_of(node, struct acpi_video_device, entry); | |
1466 | acpi_video_device_bind(video, dev); | |
1da177e4 LT |
1467 | } |
1468 | } | |
1469 | ||
1470 | /* | |
1471 | * Arg: | |
1472 | * video : video bus device | |
1473 | * device : video output device under the video | |
1474 | * bus | |
1475 | * | |
1476 | * Return: | |
1477 | * none | |
1478 | * | |
1479 | * Bind the ids with the corresponding video devices | |
1480 | * under the video bus. | |
4be44fcd | 1481 | */ |
1da177e4 LT |
1482 | |
1483 | static void | |
4be44fcd LB |
1484 | acpi_video_device_bind(struct acpi_video_bus *video, |
1485 | struct acpi_video_device *device) | |
1da177e4 | 1486 | { |
4be44fcd | 1487 | int i; |
1da177e4 LT |
1488 | |
1489 | #define IDS_VAL(i) video->attached_array[i].value.int_val | |
1490 | #define IDS_BIND(i) video->attached_array[i].bind_info | |
4be44fcd LB |
1491 | |
1492 | for (i = 0; IDS_VAL(i) != ACPI_VIDEO_HEAD_INVALID && | |
1493 | i < video->attached_count; i++) { | |
1494 | if (device->device_id == (IDS_VAL(i) & 0xffff)) { | |
1da177e4 LT |
1495 | IDS_BIND(i) = device; |
1496 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "device_bind %d\n", i)); | |
1497 | } | |
1498 | } | |
1499 | #undef IDS_VAL | |
1500 | #undef IDS_BIND | |
1501 | } | |
1502 | ||
1503 | /* | |
1504 | * Arg: | |
1505 | * video : video bus device | |
1506 | * | |
1507 | * Return: | |
1508 | * < 0 : error | |
1509 | * | |
1510 | * Call _DOD to enumerate all devices attached to display adapter | |
1511 | * | |
4be44fcd | 1512 | */ |
1da177e4 LT |
1513 | |
1514 | static int acpi_video_device_enumerate(struct acpi_video_bus *video) | |
1515 | { | |
4be44fcd LB |
1516 | int status; |
1517 | int count; | |
1518 | int i; | |
1da177e4 | 1519 | struct acpi_video_enumerated_device *active_device_list; |
4be44fcd LB |
1520 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
1521 | union acpi_object *dod = NULL; | |
1522 | union acpi_object *obj; | |
1da177e4 | 1523 | |
90130268 | 1524 | status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer); |
1da177e4 | 1525 | if (!ACPI_SUCCESS(status)) { |
a6fc6720 | 1526 | ACPI_EXCEPTION((AE_INFO, status, "Evaluating _DOD")); |
d550d98d | 1527 | return status; |
1da177e4 LT |
1528 | } |
1529 | ||
50dd0969 | 1530 | dod = buffer.pointer; |
1da177e4 | 1531 | if (!dod || (dod->type != ACPI_TYPE_PACKAGE)) { |
a6fc6720 | 1532 | ACPI_EXCEPTION((AE_INFO, status, "Invalid _DOD data")); |
1da177e4 LT |
1533 | status = -EFAULT; |
1534 | goto out; | |
1535 | } | |
1536 | ||
1537 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d video heads in _DOD\n", | |
4be44fcd | 1538 | dod->package.count)); |
1da177e4 | 1539 | |
4be44fcd LB |
1540 | active_device_list = kmalloc((1 + |
1541 | dod->package.count) * | |
1542 | sizeof(struct | |
1543 | acpi_video_enumerated_device), | |
1544 | GFP_KERNEL); | |
1da177e4 LT |
1545 | |
1546 | if (!active_device_list) { | |
1547 | status = -ENOMEM; | |
1548 | goto out; | |
1549 | } | |
1550 | ||
1551 | count = 0; | |
1552 | for (i = 0; i < dod->package.count; i++) { | |
50dd0969 | 1553 | obj = &dod->package.elements[i]; |
1da177e4 LT |
1554 | |
1555 | if (obj->type != ACPI_TYPE_INTEGER) { | |
6468463a | 1556 | printk(KERN_ERR PREFIX "Invalid _DOD data\n"); |
4be44fcd LB |
1557 | active_device_list[i].value.int_val = |
1558 | ACPI_VIDEO_HEAD_INVALID; | |
1da177e4 LT |
1559 | } |
1560 | active_device_list[i].value.int_val = obj->integer.value; | |
1561 | active_device_list[i].bind_info = NULL; | |
4be44fcd LB |
1562 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "dod element[%d] = %d\n", i, |
1563 | (int)obj->integer.value)); | |
1da177e4 LT |
1564 | count++; |
1565 | } | |
1566 | active_device_list[count].value.int_val = ACPI_VIDEO_HEAD_END; | |
1567 | ||
6044ec88 | 1568 | kfree(video->attached_array); |
4be44fcd | 1569 | |
1da177e4 LT |
1570 | video->attached_array = active_device_list; |
1571 | video->attached_count = count; | |
4be44fcd | 1572 | out: |
02438d87 | 1573 | kfree(buffer.pointer); |
d550d98d | 1574 | return status; |
1da177e4 LT |
1575 | } |
1576 | ||
1577 | /* | |
1578 | * Arg: | |
1579 | * video : video bus device | |
98fb8fe1 | 1580 | * event : notify event |
1da177e4 LT |
1581 | * |
1582 | * Return: | |
1583 | * < 0 : error | |
1584 | * | |
1585 | * 1. Find out the current active output device. | |
98fb8fe1 | 1586 | * 2. Identify the next output device to switch to. |
1da177e4 | 1587 | * 3. call _DSS to do actual switch. |
4be44fcd | 1588 | */ |
1da177e4 | 1589 | |
4be44fcd | 1590 | static int acpi_video_switch_output(struct acpi_video_bus *video, int event) |
1da177e4 | 1591 | { |
4be44fcd LB |
1592 | struct list_head *node, *next; |
1593 | struct acpi_video_device *dev = NULL; | |
1594 | struct acpi_video_device *dev_next = NULL; | |
1595 | struct acpi_video_device *dev_prev = NULL; | |
1da177e4 LT |
1596 | unsigned long state; |
1597 | int status = 0; | |
1598 | ||
1da177e4 LT |
1599 | |
1600 | list_for_each_safe(node, next, &video->video_device_list) { | |
7334571f | 1601 | dev = container_of(node, struct acpi_video_device, entry); |
1da177e4 | 1602 | status = acpi_video_device_get_state(dev, &state); |
4be44fcd LB |
1603 | if (state & 0x2) { |
1604 | dev_next = | |
1605 | container_of(node->next, struct acpi_video_device, | |
1606 | entry); | |
1607 | dev_prev = | |
1608 | container_of(node->prev, struct acpi_video_device, | |
1609 | entry); | |
1da177e4 LT |
1610 | goto out; |
1611 | } | |
1612 | } | |
1613 | dev_next = container_of(node->next, struct acpi_video_device, entry); | |
1614 | dev_prev = container_of(node->prev, struct acpi_video_device, entry); | |
4be44fcd | 1615 | out: |
1da177e4 LT |
1616 | switch (event) { |
1617 | case ACPI_VIDEO_NOTIFY_CYCLE: | |
1618 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: | |
1619 | acpi_video_device_set_state(dev, 0); | |
1620 | acpi_video_device_set_state(dev_next, 0x80000001); | |
1621 | break; | |
1622 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: | |
1623 | acpi_video_device_set_state(dev, 0); | |
1624 | acpi_video_device_set_state(dev_prev, 0x80000001); | |
1625 | default: | |
1626 | break; | |
1627 | } | |
1628 | ||
d550d98d | 1629 | return status; |
1da177e4 LT |
1630 | } |
1631 | ||
4be44fcd LB |
1632 | static int |
1633 | acpi_video_get_next_level(struct acpi_video_device *device, | |
1634 | u32 level_current, u32 event) | |
1da177e4 | 1635 | { |
f4715189 TT |
1636 | int min, max, min_above, max_below, i, l; |
1637 | max = max_below = 0; | |
1638 | min = min_above = 255; | |
1639 | for (i = 0; i < device->brightness->count; i++) { | |
1640 | l = device->brightness->levels[i]; | |
1641 | if (l < min) | |
1642 | min = l; | |
1643 | if (l > max) | |
1644 | max = l; | |
1645 | if (l < min_above && l > level_current) | |
1646 | min_above = l; | |
1647 | if (l > max_below && l < level_current) | |
1648 | max_below = l; | |
1649 | } | |
1650 | ||
1651 | switch (event) { | |
1652 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: | |
1653 | return (level_current < max) ? min_above : min; | |
1654 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: | |
1655 | return (level_current < max) ? min_above : max; | |
1656 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: | |
1657 | return (level_current > min) ? max_below : min; | |
1658 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: | |
1659 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: | |
1660 | return 0; | |
1661 | default: | |
1662 | return level_current; | |
1663 | } | |
1da177e4 LT |
1664 | } |
1665 | ||
1da177e4 | 1666 | static void |
4be44fcd | 1667 | acpi_video_switch_brightness(struct acpi_video_device *device, int event) |
1da177e4 LT |
1668 | { |
1669 | unsigned long level_current, level_next; | |
1670 | acpi_video_device_lcd_get_level_current(device, &level_current); | |
1671 | level_next = acpi_video_get_next_level(device, level_current, event); | |
1672 | acpi_video_device_lcd_set_level(device, level_next); | |
1673 | } | |
1674 | ||
1675 | static int | |
4be44fcd LB |
1676 | acpi_video_bus_get_devices(struct acpi_video_bus *video, |
1677 | struct acpi_device *device) | |
1da177e4 | 1678 | { |
4be44fcd LB |
1679 | int status = 0; |
1680 | struct list_head *node, *next; | |
1da177e4 | 1681 | |
1da177e4 LT |
1682 | |
1683 | acpi_video_device_enumerate(video); | |
1684 | ||
1685 | list_for_each_safe(node, next, &device->children) { | |
4be44fcd LB |
1686 | struct acpi_device *dev = |
1687 | list_entry(node, struct acpi_device, node); | |
1da177e4 LT |
1688 | |
1689 | if (!dev) | |
1690 | continue; | |
1691 | ||
1692 | status = acpi_video_bus_get_one_device(dev, video); | |
1693 | if (ACPI_FAILURE(status)) { | |
a6fc6720 | 1694 | ACPI_EXCEPTION((AE_INFO, status, "Cant attach device")); |
1da177e4 LT |
1695 | continue; |
1696 | } | |
1697 | ||
1698 | } | |
d550d98d | 1699 | return status; |
1da177e4 LT |
1700 | } |
1701 | ||
4be44fcd | 1702 | static int acpi_video_bus_put_one_device(struct acpi_video_device *device) |
1da177e4 | 1703 | { |
031ec77b | 1704 | acpi_status status; |
1da177e4 LT |
1705 | struct acpi_video_bus *video; |
1706 | ||
1da177e4 LT |
1707 | |
1708 | if (!device || !device->video) | |
d550d98d | 1709 | return -ENOENT; |
1da177e4 LT |
1710 | |
1711 | video = device->video; | |
1712 | ||
1713 | down(&video->sem); | |
1714 | list_del(&device->entry); | |
1715 | up(&video->sem); | |
1716 | acpi_video_device_remove_fs(device->dev); | |
1717 | ||
90130268 | 1718 | status = acpi_remove_notify_handler(device->dev->handle, |
4be44fcd LB |
1719 | ACPI_DEVICE_NOTIFY, |
1720 | acpi_video_device_notify); | |
599a52d1 | 1721 | backlight_device_unregister(device->backlight); |
23b0f015 | 1722 | video_output_unregister(device->output_dev); |
d550d98d | 1723 | return 0; |
1da177e4 LT |
1724 | } |
1725 | ||
4be44fcd | 1726 | static int acpi_video_bus_put_devices(struct acpi_video_bus *video) |
1da177e4 | 1727 | { |
4be44fcd LB |
1728 | int status; |
1729 | struct list_head *node, *next; | |
1da177e4 | 1730 | |
1da177e4 LT |
1731 | |
1732 | list_for_each_safe(node, next, &video->video_device_list) { | |
4be44fcd LB |
1733 | struct acpi_video_device *data = |
1734 | list_entry(node, struct acpi_video_device, entry); | |
1da177e4 LT |
1735 | if (!data) |
1736 | continue; | |
1737 | ||
1738 | status = acpi_video_bus_put_one_device(data); | |
4be44fcd LB |
1739 | if (ACPI_FAILURE(status)) |
1740 | printk(KERN_WARNING PREFIX | |
1741 | "hhuuhhuu bug in acpi video driver.\n"); | |
1da177e4 | 1742 | |
d384ea69 | 1743 | if (data->brightness) |
973bf491 | 1744 | kfree(data->brightness->levels); |
6044ec88 | 1745 | kfree(data->brightness); |
1da177e4 LT |
1746 | kfree(data); |
1747 | } | |
1748 | ||
d550d98d | 1749 | return 0; |
1da177e4 LT |
1750 | } |
1751 | ||
1752 | /* acpi_video interface */ | |
1753 | ||
4be44fcd | 1754 | static int acpi_video_bus_start_devices(struct acpi_video_bus *video) |
1da177e4 | 1755 | { |
a21101c4 | 1756 | return acpi_video_bus_DOS(video, 0, 0); |
1da177e4 LT |
1757 | } |
1758 | ||
4be44fcd | 1759 | static int acpi_video_bus_stop_devices(struct acpi_video_bus *video) |
1da177e4 LT |
1760 | { |
1761 | return acpi_video_bus_DOS(video, 0, 1); | |
1762 | } | |
1763 | ||
4be44fcd | 1764 | static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 1765 | { |
50dd0969 | 1766 | struct acpi_video_bus *video = data; |
4be44fcd | 1767 | struct acpi_device *device = NULL; |
e9dab196 LY |
1768 | struct input_dev *input; |
1769 | int keycode; | |
1770 | ||
1da177e4 | 1771 | |
1da177e4 LT |
1772 | printk("video bus notify\n"); |
1773 | ||
1774 | if (!video) | |
d550d98d | 1775 | return; |
1da177e4 | 1776 | |
e6afa0de | 1777 | device = video->device; |
e9dab196 | 1778 | input = video->input; |
1da177e4 LT |
1779 | |
1780 | switch (event) { | |
98fb8fe1 | 1781 | case ACPI_VIDEO_NOTIFY_SWITCH: /* User requested a switch, |
1da177e4 | 1782 | * most likely via hotkey. */ |
14e04fb3 | 1783 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1784 | keycode = KEY_SWITCHVIDEOMODE; |
1da177e4 LT |
1785 | break; |
1786 | ||
98fb8fe1 | 1787 | case ACPI_VIDEO_NOTIFY_PROBE: /* User plugged in or removed a video |
1da177e4 LT |
1788 | * connector. */ |
1789 | acpi_video_device_enumerate(video); | |
1790 | acpi_video_device_rebind(video); | |
1791 | acpi_video_switch_output(video, event); | |
14e04fb3 | 1792 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1793 | keycode = KEY_SWITCHVIDEOMODE; |
1da177e4 LT |
1794 | break; |
1795 | ||
4be44fcd | 1796 | case ACPI_VIDEO_NOTIFY_CYCLE: /* Cycle Display output hotkey pressed. */ |
e9dab196 | 1797 | acpi_video_switch_output(video, event); |
25c87f7f | 1798 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1799 | keycode = KEY_SWITCHVIDEOMODE; |
1800 | break; | |
4be44fcd | 1801 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: /* Next Display output hotkey pressed. */ |
e9dab196 | 1802 | acpi_video_switch_output(video, event); |
25c87f7f | 1803 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1804 | keycode = KEY_VIDEO_NEXT; |
1805 | break; | |
4be44fcd | 1806 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: /* previous Display output hotkey pressed. */ |
1da177e4 | 1807 | acpi_video_switch_output(video, event); |
14e04fb3 | 1808 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1809 | keycode = KEY_VIDEO_PREV; |
1da177e4 LT |
1810 | break; |
1811 | ||
1812 | default: | |
e9dab196 | 1813 | keycode = KEY_UNKNOWN; |
1da177e4 | 1814 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
4be44fcd | 1815 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
1816 | break; |
1817 | } | |
1818 | ||
e9dab196 LY |
1819 | input_report_key(input, keycode, 1); |
1820 | input_sync(input); | |
1821 | input_report_key(input, keycode, 0); | |
1822 | input_sync(input); | |
1823 | ||
d550d98d | 1824 | return; |
1da177e4 LT |
1825 | } |
1826 | ||
4be44fcd | 1827 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 1828 | { |
50dd0969 | 1829 | struct acpi_video_device *video_device = data; |
4be44fcd | 1830 | struct acpi_device *device = NULL; |
e9dab196 LY |
1831 | struct acpi_video_bus *bus; |
1832 | struct input_dev *input; | |
1833 | int keycode; | |
1da177e4 | 1834 | |
1da177e4 | 1835 | if (!video_device) |
d550d98d | 1836 | return; |
1da177e4 | 1837 | |
e6afa0de | 1838 | device = video_device->dev; |
e9dab196 LY |
1839 | bus = video_device->video; |
1840 | input = bus->input; | |
1da177e4 LT |
1841 | |
1842 | switch (event) { | |
4be44fcd | 1843 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */ |
e9dab196 | 1844 | acpi_video_switch_brightness(video_device, event); |
14e04fb3 | 1845 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1846 | keycode = KEY_BRIGHTNESS_CYCLE; |
1847 | break; | |
4be44fcd | 1848 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: /* Increase brightness */ |
e9dab196 | 1849 | acpi_video_switch_brightness(video_device, event); |
25c87f7f | 1850 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1851 | keycode = KEY_BRIGHTNESSUP; |
1852 | break; | |
4be44fcd | 1853 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: /* Decrease brightness */ |
e9dab196 | 1854 | acpi_video_switch_brightness(video_device, event); |
25c87f7f | 1855 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1856 | keycode = KEY_BRIGHTNESSDOWN; |
1857 | break; | |
4be44fcd | 1858 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightnesss */ |
e9dab196 | 1859 | acpi_video_switch_brightness(video_device, event); |
25c87f7f | 1860 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1861 | keycode = KEY_BRIGHTNESS_ZERO; |
1862 | break; | |
4be44fcd LB |
1863 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: /* display device off */ |
1864 | acpi_video_switch_brightness(video_device, event); | |
14e04fb3 | 1865 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1866 | keycode = KEY_DISPLAY_OFF; |
1da177e4 LT |
1867 | break; |
1868 | default: | |
e9dab196 | 1869 | keycode = KEY_UNKNOWN; |
1da177e4 | 1870 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
4be44fcd | 1871 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
1872 | break; |
1873 | } | |
e9dab196 LY |
1874 | |
1875 | input_report_key(input, keycode, 1); | |
1876 | input_sync(input); | |
1877 | input_report_key(input, keycode, 0); | |
1878 | input_sync(input); | |
1879 | ||
d550d98d | 1880 | return; |
1da177e4 LT |
1881 | } |
1882 | ||
e6d9da1d | 1883 | static int instance; |
4be44fcd | 1884 | static int acpi_video_bus_add(struct acpi_device *device) |
1da177e4 | 1885 | { |
4be44fcd LB |
1886 | int result = 0; |
1887 | acpi_status status = 0; | |
1888 | struct acpi_video_bus *video = NULL; | |
e9dab196 | 1889 | struct input_dev *input; |
1da177e4 | 1890 | |
4be44fcd | 1891 | |
1da177e4 | 1892 | if (!device) |
d550d98d | 1893 | return -EINVAL; |
1da177e4 | 1894 | |
36bcbec7 | 1895 | video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL); |
1da177e4 | 1896 | if (!video) |
d550d98d | 1897 | return -ENOMEM; |
1da177e4 | 1898 | |
e6d9da1d ZR |
1899 | /* a hack to fix the duplicate name "VID" problem on T61 */ |
1900 | if (!strcmp(device->pnp.bus_id, "VID")) { | |
1901 | if (instance) | |
1902 | device->pnp.bus_id[3] = '0' + instance; | |
1903 | instance ++; | |
1904 | } | |
1905 | ||
e6afa0de | 1906 | video->device = device; |
1da177e4 LT |
1907 | strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME); |
1908 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); | |
1909 | acpi_driver_data(device) = video; | |
1910 | ||
1911 | acpi_video_bus_find_cap(video); | |
1912 | result = acpi_video_bus_check(video); | |
1913 | if (result) | |
1914 | goto end; | |
1915 | ||
1916 | result = acpi_video_bus_add_fs(device); | |
1917 | if (result) | |
1918 | goto end; | |
1919 | ||
1920 | init_MUTEX(&video->sem); | |
1921 | INIT_LIST_HEAD(&video->video_device_list); | |
1922 | ||
1923 | acpi_video_bus_get_devices(video, device); | |
1924 | acpi_video_bus_start_devices(video); | |
1925 | ||
90130268 | 1926 | status = acpi_install_notify_handler(device->handle, |
4be44fcd LB |
1927 | ACPI_DEVICE_NOTIFY, |
1928 | acpi_video_bus_notify, video); | |
1da177e4 LT |
1929 | if (ACPI_FAILURE(status)) { |
1930 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, | |
4be44fcd | 1931 | "Error installing notify handler\n")); |
973bf491 YL |
1932 | acpi_video_bus_stop_devices(video); |
1933 | acpi_video_bus_put_devices(video); | |
1934 | kfree(video->attached_array); | |
1935 | acpi_video_bus_remove_fs(device); | |
1da177e4 LT |
1936 | result = -ENODEV; |
1937 | goto end; | |
1938 | } | |
1939 | ||
e9dab196 LY |
1940 | |
1941 | video->input = input = input_allocate_device(); | |
1942 | ||
1943 | snprintf(video->phys, sizeof(video->phys), | |
1944 | "%s/video/input0", acpi_device_hid(video->device)); | |
1945 | ||
1946 | input->name = acpi_device_name(video->device); | |
1947 | input->phys = video->phys; | |
1948 | input->id.bustype = BUS_HOST; | |
1949 | input->id.product = 0x06; | |
1950 | input->evbit[0] = BIT(EV_KEY); | |
1951 | set_bit(KEY_SWITCHVIDEOMODE, input->keybit); | |
1952 | set_bit(KEY_VIDEO_NEXT, input->keybit); | |
1953 | set_bit(KEY_VIDEO_PREV, input->keybit); | |
1954 | set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit); | |
1955 | set_bit(KEY_BRIGHTNESSUP, input->keybit); | |
1956 | set_bit(KEY_BRIGHTNESSDOWN, input->keybit); | |
1957 | set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); | |
1958 | set_bit(KEY_DISPLAY_OFF, input->keybit); | |
1959 | set_bit(KEY_UNKNOWN, input->keybit); | |
1960 | result = input_register_device(input); | |
1961 | if (result) { | |
1962 | acpi_remove_notify_handler(video->device->handle, | |
1963 | ACPI_DEVICE_NOTIFY, | |
1964 | acpi_video_bus_notify); | |
1965 | acpi_video_bus_stop_devices(video); | |
1966 | acpi_video_bus_put_devices(video); | |
1967 | kfree(video->attached_array); | |
1968 | acpi_video_bus_remove_fs(device); | |
1969 | goto end; | |
1970 | } | |
1971 | ||
1972 | ||
1da177e4 | 1973 | printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", |
4be44fcd LB |
1974 | ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device), |
1975 | video->flags.multihead ? "yes" : "no", | |
1976 | video->flags.rom ? "yes" : "no", | |
1977 | video->flags.post ? "yes" : "no"); | |
1da177e4 | 1978 | |
4be44fcd | 1979 | end: |
973bf491 | 1980 | if (result) |
1da177e4 | 1981 | kfree(video); |
1da177e4 | 1982 | |
d550d98d | 1983 | return result; |
1da177e4 LT |
1984 | } |
1985 | ||
4be44fcd | 1986 | static int acpi_video_bus_remove(struct acpi_device *device, int type) |
1da177e4 | 1987 | { |
4be44fcd LB |
1988 | acpi_status status = 0; |
1989 | struct acpi_video_bus *video = NULL; | |
1da177e4 | 1990 | |
1da177e4 LT |
1991 | |
1992 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 1993 | return -EINVAL; |
1da177e4 | 1994 | |
50dd0969 | 1995 | video = acpi_driver_data(device); |
1da177e4 LT |
1996 | |
1997 | acpi_video_bus_stop_devices(video); | |
1998 | ||
90130268 | 1999 | status = acpi_remove_notify_handler(video->device->handle, |
4be44fcd LB |
2000 | ACPI_DEVICE_NOTIFY, |
2001 | acpi_video_bus_notify); | |
1da177e4 LT |
2002 | |
2003 | acpi_video_bus_put_devices(video); | |
2004 | acpi_video_bus_remove_fs(device); | |
2005 | ||
e9dab196 | 2006 | input_unregister_device(video->input); |
6044ec88 | 2007 | kfree(video->attached_array); |
1da177e4 LT |
2008 | kfree(video); |
2009 | ||
d550d98d | 2010 | return 0; |
1da177e4 LT |
2011 | } |
2012 | ||
4be44fcd | 2013 | static int __init acpi_video_init(void) |
1da177e4 | 2014 | { |
4be44fcd | 2015 | int result = 0; |
1da177e4 | 2016 | |
1da177e4 LT |
2017 | |
2018 | /* | |
4be44fcd LB |
2019 | acpi_dbg_level = 0xFFFFFFFF; |
2020 | acpi_dbg_layer = 0x08000000; | |
2021 | */ | |
1da177e4 LT |
2022 | |
2023 | acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir); | |
2024 | if (!acpi_video_dir) | |
d550d98d | 2025 | return -ENODEV; |
1da177e4 LT |
2026 | acpi_video_dir->owner = THIS_MODULE; |
2027 | ||
2028 | result = acpi_bus_register_driver(&acpi_video_bus); | |
2029 | if (result < 0) { | |
2030 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); | |
d550d98d | 2031 | return -ENODEV; |
1da177e4 LT |
2032 | } |
2033 | ||
d550d98d | 2034 | return 0; |
1da177e4 LT |
2035 | } |
2036 | ||
4be44fcd | 2037 | static void __exit acpi_video_exit(void) |
1da177e4 | 2038 | { |
1da177e4 LT |
2039 | |
2040 | acpi_bus_unregister_driver(&acpi_video_bus); | |
2041 | ||
2042 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); | |
2043 | ||
d550d98d | 2044 | return; |
1da177e4 LT |
2045 | } |
2046 | ||
2047 | module_init(acpi_video_init); | |
2048 | module_exit(acpi_video_exit); |