]>
Commit | Line | Data |
---|---|---|
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> | |
bbac81f5 | 32 | #include <linux/mutex.h> |
1da177e4 LT |
33 | #include <linux/proc_fs.h> |
34 | #include <linux/seq_file.h> | |
e9dab196 | 35 | #include <linux/input.h> |
2f3d000a | 36 | #include <linux/backlight.h> |
702ed512 | 37 | #include <linux/thermal.h> |
23b0f015 | 38 | #include <linux/video_output.h> |
1da177e4 LT |
39 | #include <asm/uaccess.h> |
40 | ||
41 | #include <acpi/acpi_bus.h> | |
42 | #include <acpi/acpi_drivers.h> | |
43 | ||
44 | #define ACPI_VIDEO_COMPONENT 0x08000000 | |
45 | #define ACPI_VIDEO_CLASS "video" | |
1da177e4 LT |
46 | #define ACPI_VIDEO_BUS_NAME "Video Bus" |
47 | #define ACPI_VIDEO_DEVICE_NAME "Video Device" | |
48 | #define ACPI_VIDEO_NOTIFY_SWITCH 0x80 | |
49 | #define ACPI_VIDEO_NOTIFY_PROBE 0x81 | |
50 | #define ACPI_VIDEO_NOTIFY_CYCLE 0x82 | |
51 | #define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83 | |
52 | #define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84 | |
53 | ||
f4715189 TT |
54 | #define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x85 |
55 | #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86 | |
56 | #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87 | |
57 | #define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x88 | |
58 | #define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x89 | |
1da177e4 | 59 | |
1da177e4 LT |
60 | #define ACPI_VIDEO_HEAD_INVALID (~0u - 1) |
61 | #define ACPI_VIDEO_HEAD_END (~0u) | |
2f3d000a | 62 | #define MAX_NAME_LEN 20 |
1da177e4 | 63 | |
82cae999 RZ |
64 | #define ACPI_VIDEO_DISPLAY_CRT 1 |
65 | #define ACPI_VIDEO_DISPLAY_TV 2 | |
66 | #define ACPI_VIDEO_DISPLAY_DVI 3 | |
67 | #define ACPI_VIDEO_DISPLAY_LCD 4 | |
68 | ||
1da177e4 | 69 | #define _COMPONENT ACPI_VIDEO_COMPONENT |
f52fd66d | 70 | ACPI_MODULE_NAME("video"); |
1da177e4 | 71 | |
f52fd66d | 72 | MODULE_AUTHOR("Bruno Ducrot"); |
7cda93e0 | 73 | MODULE_DESCRIPTION("ACPI Video Driver"); |
1da177e4 LT |
74 | MODULE_LICENSE("GPL"); |
75 | ||
4be44fcd LB |
76 | static int acpi_video_bus_add(struct acpi_device *device); |
77 | static int acpi_video_bus_remove(struct acpi_device *device, int type); | |
1da177e4 | 78 | |
1ba90e3a TR |
79 | static const struct acpi_device_id video_device_ids[] = { |
80 | {ACPI_VIDEO_HID, 0}, | |
81 | {"", 0}, | |
82 | }; | |
83 | MODULE_DEVICE_TABLE(acpi, video_device_ids); | |
84 | ||
1da177e4 | 85 | static struct acpi_driver acpi_video_bus = { |
c2b6705b | 86 | .name = "video", |
1da177e4 | 87 | .class = ACPI_VIDEO_CLASS, |
1ba90e3a | 88 | .ids = video_device_ids, |
1da177e4 LT |
89 | .ops = { |
90 | .add = acpi_video_bus_add, | |
91 | .remove = acpi_video_bus_remove, | |
4be44fcd | 92 | }, |
1da177e4 LT |
93 | }; |
94 | ||
95 | struct acpi_video_bus_flags { | |
4be44fcd LB |
96 | u8 multihead:1; /* can switch video heads */ |
97 | u8 rom:1; /* can retrieve a video rom */ | |
98 | u8 post:1; /* can configure the head to */ | |
99 | u8 reserved:5; | |
1da177e4 LT |
100 | }; |
101 | ||
102 | struct acpi_video_bus_cap { | |
4be44fcd LB |
103 | u8 _DOS:1; /*Enable/Disable output switching */ |
104 | u8 _DOD:1; /*Enumerate all devices attached to display adapter */ | |
105 | u8 _ROM:1; /*Get ROM Data */ | |
106 | u8 _GPD:1; /*Get POST Device */ | |
107 | u8 _SPD:1; /*Set POST Device */ | |
108 | u8 _VPO:1; /*Video POST Options */ | |
109 | u8 reserved:2; | |
1da177e4 LT |
110 | }; |
111 | ||
4be44fcd LB |
112 | struct acpi_video_device_attrib { |
113 | u32 display_index:4; /* A zero-based instance of the Display */ | |
98fb8fe1 | 114 | u32 display_port_attachment:4; /*This field differentiates the display type */ |
4be44fcd | 115 | u32 display_type:4; /*Describe the specific type in use */ |
98fb8fe1 | 116 | u32 vendor_specific:4; /*Chipset Vendor Specific */ |
4be44fcd LB |
117 | u32 bios_can_detect:1; /*BIOS can detect the device */ |
118 | u32 depend_on_vga:1; /*Non-VGA output device whose power is related to | |
119 | the VGA device. */ | |
120 | u32 pipe_id:3; /*For VGA multiple-head devices. */ | |
121 | u32 reserved:10; /*Must be 0 */ | |
122 | u32 device_id_scheme:1; /*Device ID Scheme */ | |
1da177e4 LT |
123 | }; |
124 | ||
125 | struct acpi_video_enumerated_device { | |
126 | union { | |
127 | u32 int_val; | |
4be44fcd | 128 | struct acpi_video_device_attrib attrib; |
1da177e4 LT |
129 | } value; |
130 | struct acpi_video_device *bind_info; | |
131 | }; | |
132 | ||
133 | struct acpi_video_bus { | |
e6afa0de | 134 | struct acpi_device *device; |
4be44fcd | 135 | u8 dos_setting; |
1da177e4 | 136 | struct acpi_video_enumerated_device *attached_array; |
4be44fcd LB |
137 | u8 attached_count; |
138 | struct acpi_video_bus_cap cap; | |
1da177e4 | 139 | struct acpi_video_bus_flags flags; |
4be44fcd | 140 | struct list_head video_device_list; |
bbac81f5 | 141 | struct mutex device_list_lock; /* protects video_device_list */ |
4be44fcd | 142 | struct proc_dir_entry *dir; |
e9dab196 LY |
143 | struct input_dev *input; |
144 | char phys[32]; /* for input device */ | |
1da177e4 LT |
145 | }; |
146 | ||
147 | struct acpi_video_device_flags { | |
4be44fcd LB |
148 | u8 crt:1; |
149 | u8 lcd:1; | |
150 | u8 tvout:1; | |
82cae999 | 151 | u8 dvi:1; |
4be44fcd LB |
152 | u8 bios:1; |
153 | u8 unknown:1; | |
82cae999 | 154 | u8 reserved:2; |
1da177e4 LT |
155 | }; |
156 | ||
157 | struct acpi_video_device_cap { | |
4be44fcd LB |
158 | u8 _ADR:1; /*Return the unique ID */ |
159 | u8 _BCL:1; /*Query list of brightness control levels supported */ | |
160 | u8 _BCM:1; /*Set the brightness level */ | |
2f3d000a | 161 | u8 _BQC:1; /* Get current brightness level */ |
4be44fcd LB |
162 | u8 _DDC:1; /*Return the EDID for this device */ |
163 | u8 _DCS:1; /*Return status of output device */ | |
164 | u8 _DGS:1; /*Query graphics state */ | |
165 | u8 _DSS:1; /*Device state set */ | |
1da177e4 LT |
166 | }; |
167 | ||
168 | struct acpi_video_device_brightness { | |
4be44fcd LB |
169 | int curr; |
170 | int count; | |
171 | int *levels; | |
1da177e4 LT |
172 | }; |
173 | ||
174 | struct acpi_video_device { | |
4be44fcd LB |
175 | unsigned long device_id; |
176 | struct acpi_video_device_flags flags; | |
177 | struct acpi_video_device_cap cap; | |
178 | struct list_head entry; | |
179 | struct acpi_video_bus *video; | |
180 | struct acpi_device *dev; | |
1da177e4 | 181 | struct acpi_video_device_brightness *brightness; |
2f3d000a | 182 | struct backlight_device *backlight; |
702ed512 | 183 | struct thermal_cooling_device *cdev; |
23b0f015 | 184 | struct output_device *output_dev; |
1da177e4 LT |
185 | }; |
186 | ||
1da177e4 LT |
187 | /* bus */ |
188 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file); | |
189 | static struct file_operations acpi_video_bus_info_fops = { | |
4be44fcd LB |
190 | .open = acpi_video_bus_info_open_fs, |
191 | .read = seq_read, | |
192 | .llseek = seq_lseek, | |
193 | .release = single_release, | |
1da177e4 LT |
194 | }; |
195 | ||
196 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file); | |
197 | static struct file_operations acpi_video_bus_ROM_fops = { | |
4be44fcd LB |
198 | .open = acpi_video_bus_ROM_open_fs, |
199 | .read = seq_read, | |
200 | .llseek = seq_lseek, | |
201 | .release = single_release, | |
1da177e4 LT |
202 | }; |
203 | ||
4be44fcd LB |
204 | static int acpi_video_bus_POST_info_open_fs(struct inode *inode, |
205 | struct file *file); | |
1da177e4 | 206 | static struct file_operations acpi_video_bus_POST_info_fops = { |
4be44fcd LB |
207 | .open = acpi_video_bus_POST_info_open_fs, |
208 | .read = seq_read, | |
209 | .llseek = seq_lseek, | |
210 | .release = single_release, | |
1da177e4 LT |
211 | }; |
212 | ||
213 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file); | |
214 | static struct file_operations acpi_video_bus_POST_fops = { | |
4be44fcd LB |
215 | .open = acpi_video_bus_POST_open_fs, |
216 | .read = seq_read, | |
217 | .llseek = seq_lseek, | |
218 | .release = single_release, | |
1da177e4 LT |
219 | }; |
220 | ||
1da177e4 LT |
221 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file); |
222 | static struct file_operations acpi_video_bus_DOS_fops = { | |
4be44fcd LB |
223 | .open = acpi_video_bus_DOS_open_fs, |
224 | .read = seq_read, | |
225 | .llseek = seq_lseek, | |
226 | .release = single_release, | |
1da177e4 LT |
227 | }; |
228 | ||
229 | /* device */ | |
4be44fcd LB |
230 | static int acpi_video_device_info_open_fs(struct inode *inode, |
231 | struct file *file); | |
1da177e4 | 232 | static struct file_operations acpi_video_device_info_fops = { |
4be44fcd LB |
233 | .open = acpi_video_device_info_open_fs, |
234 | .read = seq_read, | |
235 | .llseek = seq_lseek, | |
236 | .release = single_release, | |
1da177e4 LT |
237 | }; |
238 | ||
4be44fcd LB |
239 | static int acpi_video_device_state_open_fs(struct inode *inode, |
240 | struct file *file); | |
1da177e4 | 241 | static struct file_operations acpi_video_device_state_fops = { |
4be44fcd LB |
242 | .open = acpi_video_device_state_open_fs, |
243 | .read = seq_read, | |
244 | .llseek = seq_lseek, | |
245 | .release = single_release, | |
1da177e4 LT |
246 | }; |
247 | ||
4be44fcd LB |
248 | static int acpi_video_device_brightness_open_fs(struct inode *inode, |
249 | struct file *file); | |
1da177e4 | 250 | static struct file_operations acpi_video_device_brightness_fops = { |
4be44fcd LB |
251 | .open = acpi_video_device_brightness_open_fs, |
252 | .read = seq_read, | |
253 | .llseek = seq_lseek, | |
254 | .release = single_release, | |
1da177e4 LT |
255 | }; |
256 | ||
4be44fcd LB |
257 | static int acpi_video_device_EDID_open_fs(struct inode *inode, |
258 | struct file *file); | |
1da177e4 | 259 | static struct file_operations acpi_video_device_EDID_fops = { |
4be44fcd LB |
260 | .open = acpi_video_device_EDID_open_fs, |
261 | .read = seq_read, | |
262 | .llseek = seq_lseek, | |
263 | .release = single_release, | |
1da177e4 LT |
264 | }; |
265 | ||
4be44fcd | 266 | static char device_decode[][30] = { |
1da177e4 LT |
267 | "motherboard VGA device", |
268 | "PCI VGA device", | |
269 | "AGP VGA device", | |
270 | "UNKNOWN", | |
271 | }; | |
272 | ||
4be44fcd LB |
273 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data); |
274 | static void acpi_video_device_rebind(struct acpi_video_bus *video); | |
275 | static void acpi_video_device_bind(struct acpi_video_bus *video, | |
276 | struct acpi_video_device *device); | |
1da177e4 | 277 | static int acpi_video_device_enumerate(struct acpi_video_bus *video); |
4be44fcd | 278 | static int acpi_video_switch_output(struct acpi_video_bus *video, int event); |
2f3d000a YL |
279 | static int acpi_video_device_lcd_set_level(struct acpi_video_device *device, |
280 | int level); | |
281 | static int acpi_video_device_lcd_get_level_current( | |
282 | struct acpi_video_device *device, | |
283 | unsigned long *level); | |
4be44fcd LB |
284 | static int acpi_video_get_next_level(struct acpi_video_device *device, |
285 | u32 level_current, u32 event); | |
286 | static void acpi_video_switch_brightness(struct acpi_video_device *device, | |
287 | int event); | |
23b0f015 LY |
288 | static int acpi_video_device_get_state(struct acpi_video_device *device, |
289 | unsigned long *state); | |
290 | static int acpi_video_output_get(struct output_device *od); | |
291 | static int acpi_video_device_set_state(struct acpi_video_device *device, int state); | |
1da177e4 | 292 | |
2f3d000a YL |
293 | /*backlight device sysfs support*/ |
294 | static int acpi_video_get_brightness(struct backlight_device *bd) | |
295 | { | |
296 | unsigned long cur_level; | |
297 | struct acpi_video_device *vd = | |
655bfd7a | 298 | (struct acpi_video_device *)bl_get_data(bd); |
2f3d000a YL |
299 | acpi_video_device_lcd_get_level_current(vd, &cur_level); |
300 | return (int) cur_level; | |
301 | } | |
302 | ||
303 | static int acpi_video_set_brightness(struct backlight_device *bd) | |
304 | { | |
599a52d1 | 305 | int request_level = bd->props.brightness; |
2f3d000a | 306 | struct acpi_video_device *vd = |
655bfd7a | 307 | (struct acpi_video_device *)bl_get_data(bd); |
2f3d000a YL |
308 | acpi_video_device_lcd_set_level(vd, request_level); |
309 | return 0; | |
310 | } | |
311 | ||
599a52d1 RP |
312 | static struct backlight_ops acpi_backlight_ops = { |
313 | .get_brightness = acpi_video_get_brightness, | |
314 | .update_status = acpi_video_set_brightness, | |
315 | }; | |
316 | ||
23b0f015 LY |
317 | /*video output device sysfs support*/ |
318 | static int acpi_video_output_get(struct output_device *od) | |
319 | { | |
320 | unsigned long state; | |
321 | struct acpi_video_device *vd = | |
60043428 | 322 | (struct acpi_video_device *)dev_get_drvdata(&od->dev); |
23b0f015 LY |
323 | acpi_video_device_get_state(vd, &state); |
324 | return (int)state; | |
325 | } | |
326 | ||
327 | static int acpi_video_output_set(struct output_device *od) | |
328 | { | |
329 | unsigned long state = od->request_state; | |
330 | struct acpi_video_device *vd= | |
60043428 | 331 | (struct acpi_video_device *)dev_get_drvdata(&od->dev); |
23b0f015 LY |
332 | return acpi_video_device_set_state(vd, state); |
333 | } | |
334 | ||
335 | static struct output_properties acpi_output_properties = { | |
336 | .set_state = acpi_video_output_set, | |
337 | .get_status = acpi_video_output_get, | |
338 | }; | |
702ed512 ZR |
339 | |
340 | ||
341 | /* thermal cooling device callbacks */ | |
342 | static int video_get_max_state(struct thermal_cooling_device *cdev, char *buf) | |
343 | { | |
344 | struct acpi_device *device = cdev->devdata; | |
345 | struct acpi_video_device *video = acpi_driver_data(device); | |
346 | ||
347 | return sprintf(buf, "%d\n", video->brightness->count - 3); | |
348 | } | |
349 | ||
350 | static int video_get_cur_state(struct thermal_cooling_device *cdev, char *buf) | |
351 | { | |
352 | struct acpi_device *device = cdev->devdata; | |
353 | struct acpi_video_device *video = acpi_driver_data(device); | |
354 | unsigned long level; | |
355 | int state; | |
356 | ||
357 | acpi_video_device_lcd_get_level_current(video, &level); | |
358 | for (state = 2; state < video->brightness->count; state++) | |
359 | if (level == video->brightness->levels[state]) | |
360 | return sprintf(buf, "%d\n", | |
361 | video->brightness->count - state - 1); | |
362 | ||
363 | return -EINVAL; | |
364 | } | |
365 | ||
366 | static int | |
367 | video_set_cur_state(struct thermal_cooling_device *cdev, unsigned int state) | |
368 | { | |
369 | struct acpi_device *device = cdev->devdata; | |
370 | struct acpi_video_device *video = acpi_driver_data(device); | |
371 | int level; | |
372 | ||
373 | if ( state >= video->brightness->count - 2) | |
374 | return -EINVAL; | |
375 | ||
376 | state = video->brightness->count - state; | |
377 | level = video->brightness->levels[state -1]; | |
378 | return acpi_video_device_lcd_set_level(video, level); | |
379 | } | |
380 | ||
381 | static struct thermal_cooling_device_ops video_cooling_ops = { | |
382 | .get_max_state = video_get_max_state, | |
383 | .get_cur_state = video_get_cur_state, | |
384 | .set_cur_state = video_set_cur_state, | |
385 | }; | |
386 | ||
1da177e4 LT |
387 | /* -------------------------------------------------------------------------- |
388 | Video Management | |
389 | -------------------------------------------------------------------------- */ | |
390 | ||
391 | /* device */ | |
392 | ||
393 | static int | |
4be44fcd | 394 | acpi_video_device_query(struct acpi_video_device *device, unsigned long *state) |
1da177e4 | 395 | { |
4be44fcd | 396 | int status; |
90130268 PM |
397 | |
398 | status = acpi_evaluate_integer(device->dev->handle, "_DGS", NULL, state); | |
1da177e4 | 399 | |
d550d98d | 400 | return status; |
1da177e4 LT |
401 | } |
402 | ||
403 | static int | |
4be44fcd LB |
404 | acpi_video_device_get_state(struct acpi_video_device *device, |
405 | unsigned long *state) | |
1da177e4 | 406 | { |
4be44fcd | 407 | int status; |
1da177e4 | 408 | |
90130268 | 409 | status = acpi_evaluate_integer(device->dev->handle, "_DCS", NULL, state); |
1da177e4 | 410 | |
d550d98d | 411 | return status; |
1da177e4 LT |
412 | } |
413 | ||
414 | static int | |
4be44fcd | 415 | acpi_video_device_set_state(struct acpi_video_device *device, int state) |
1da177e4 | 416 | { |
4be44fcd LB |
417 | int status; |
418 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
419 | struct acpi_object_list args = { 1, &arg0 }; | |
824b558b | 420 | unsigned long ret; |
1da177e4 | 421 | |
1da177e4 LT |
422 | |
423 | arg0.integer.value = state; | |
90130268 | 424 | status = acpi_evaluate_integer(device->dev->handle, "_DSS", &args, &ret); |
1da177e4 | 425 | |
d550d98d | 426 | return status; |
1da177e4 LT |
427 | } |
428 | ||
429 | static int | |
4be44fcd LB |
430 | acpi_video_device_lcd_query_levels(struct acpi_video_device *device, |
431 | union acpi_object **levels) | |
1da177e4 | 432 | { |
4be44fcd LB |
433 | int status; |
434 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
435 | union acpi_object *obj; | |
1da177e4 | 436 | |
1da177e4 LT |
437 | |
438 | *levels = NULL; | |
439 | ||
90130268 | 440 | status = acpi_evaluate_object(device->dev->handle, "_BCL", NULL, &buffer); |
1da177e4 | 441 | if (!ACPI_SUCCESS(status)) |
d550d98d | 442 | return status; |
4be44fcd | 443 | obj = (union acpi_object *)buffer.pointer; |
6665bda7 | 444 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { |
6468463a | 445 | printk(KERN_ERR PREFIX "Invalid _BCL data\n"); |
1da177e4 LT |
446 | status = -EFAULT; |
447 | goto err; | |
448 | } | |
449 | ||
450 | *levels = obj; | |
451 | ||
d550d98d | 452 | return 0; |
1da177e4 | 453 | |
4be44fcd | 454 | err: |
6044ec88 | 455 | kfree(buffer.pointer); |
1da177e4 | 456 | |
d550d98d | 457 | return status; |
1da177e4 LT |
458 | } |
459 | ||
460 | static int | |
4be44fcd | 461 | acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level) |
1da177e4 | 462 | { |
4500ca8e | 463 | int status = AE_OK; |
4be44fcd LB |
464 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; |
465 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 466 | |
1da177e4 LT |
467 | |
468 | arg0.integer.value = level; | |
1da177e4 | 469 | |
4500ca8e AS |
470 | if (device->cap._BCM) |
471 | status = acpi_evaluate_object(device->dev->handle, "_BCM", | |
472 | &args, NULL); | |
473 | device->brightness->curr = level; | |
d550d98d | 474 | return status; |
1da177e4 LT |
475 | } |
476 | ||
477 | static int | |
4be44fcd LB |
478 | acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, |
479 | unsigned long *level) | |
1da177e4 | 480 | { |
4500ca8e AS |
481 | if (device->cap._BQC) |
482 | return acpi_evaluate_integer(device->dev->handle, "_BQC", NULL, | |
483 | level); | |
484 | *level = device->brightness->curr; | |
485 | return AE_OK; | |
1da177e4 LT |
486 | } |
487 | ||
488 | static int | |
4be44fcd LB |
489 | acpi_video_device_EDID(struct acpi_video_device *device, |
490 | union acpi_object **edid, ssize_t length) | |
1da177e4 | 491 | { |
4be44fcd LB |
492 | int status; |
493 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
494 | union acpi_object *obj; | |
495 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
496 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 497 | |
1da177e4 LT |
498 | |
499 | *edid = NULL; | |
500 | ||
501 | if (!device) | |
d550d98d | 502 | return -ENODEV; |
1da177e4 LT |
503 | if (length == 128) |
504 | arg0.integer.value = 1; | |
505 | else if (length == 256) | |
506 | arg0.integer.value = 2; | |
507 | else | |
d550d98d | 508 | return -EINVAL; |
1da177e4 | 509 | |
90130268 | 510 | status = acpi_evaluate_object(device->dev->handle, "_DDC", &args, &buffer); |
1da177e4 | 511 | if (ACPI_FAILURE(status)) |
d550d98d | 512 | return -ENODEV; |
1da177e4 | 513 | |
50dd0969 | 514 | obj = buffer.pointer; |
1da177e4 LT |
515 | |
516 | if (obj && obj->type == ACPI_TYPE_BUFFER) | |
517 | *edid = obj; | |
518 | else { | |
6468463a | 519 | printk(KERN_ERR PREFIX "Invalid _DDC data\n"); |
1da177e4 LT |
520 | status = -EFAULT; |
521 | kfree(obj); | |
522 | } | |
523 | ||
d550d98d | 524 | return status; |
1da177e4 LT |
525 | } |
526 | ||
1da177e4 LT |
527 | /* bus */ |
528 | ||
529 | static int | |
4be44fcd | 530 | acpi_video_bus_set_POST(struct acpi_video_bus *video, unsigned long option) |
1da177e4 | 531 | { |
4be44fcd LB |
532 | int status; |
533 | unsigned long tmp; | |
534 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
535 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 536 | |
1da177e4 LT |
537 | |
538 | arg0.integer.value = option; | |
539 | ||
90130268 | 540 | status = acpi_evaluate_integer(video->device->handle, "_SPD", &args, &tmp); |
1da177e4 | 541 | if (ACPI_SUCCESS(status)) |
4be44fcd | 542 | status = tmp ? (-EINVAL) : (AE_OK); |
1da177e4 | 543 | |
d550d98d | 544 | return status; |
1da177e4 LT |
545 | } |
546 | ||
547 | static int | |
4be44fcd | 548 | acpi_video_bus_get_POST(struct acpi_video_bus *video, unsigned long *id) |
1da177e4 LT |
549 | { |
550 | int status; | |
551 | ||
90130268 | 552 | status = acpi_evaluate_integer(video->device->handle, "_GPD", NULL, id); |
1da177e4 | 553 | |
d550d98d | 554 | return status; |
1da177e4 LT |
555 | } |
556 | ||
557 | static int | |
4be44fcd LB |
558 | acpi_video_bus_POST_options(struct acpi_video_bus *video, |
559 | unsigned long *options) | |
1da177e4 | 560 | { |
4be44fcd | 561 | int status; |
1da177e4 | 562 | |
90130268 | 563 | status = acpi_evaluate_integer(video->device->handle, "_VPO", NULL, options); |
1da177e4 LT |
564 | *options &= 3; |
565 | ||
d550d98d | 566 | return status; |
1da177e4 LT |
567 | } |
568 | ||
569 | /* | |
570 | * Arg: | |
571 | * video : video bus device pointer | |
572 | * bios_flag : | |
573 | * 0. The system BIOS should NOT automatically switch(toggle) | |
574 | * the active display output. | |
575 | * 1. The system BIOS should automatically switch (toggle) the | |
98fb8fe1 | 576 | * active display output. No switch event. |
1da177e4 LT |
577 | * 2. The _DGS value should be locked. |
578 | * 3. The system BIOS should not automatically switch (toggle) the | |
579 | * active display output, but instead generate the display switch | |
580 | * event notify code. | |
581 | * lcd_flag : | |
582 | * 0. The system BIOS should automatically control the brightness level | |
98fb8fe1 | 583 | * of the LCD when the power changes from AC to DC |
1da177e4 | 584 | * 1. The system BIOS should NOT automatically control the brightness |
98fb8fe1 | 585 | * level of the LCD when the power changes from AC to DC. |
1da177e4 LT |
586 | * Return Value: |
587 | * -1 wrong arg. | |
588 | */ | |
589 | ||
590 | static int | |
4be44fcd | 591 | acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) |
1da177e4 | 592 | { |
4be44fcd LB |
593 | acpi_integer status = 0; |
594 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
595 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 596 | |
1da177e4 | 597 | |
4be44fcd | 598 | if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) { |
1da177e4 LT |
599 | status = -1; |
600 | goto Failed; | |
601 | } | |
602 | arg0.integer.value = (lcd_flag << 2) | bios_flag; | |
603 | video->dos_setting = arg0.integer.value; | |
90130268 | 604 | acpi_evaluate_object(video->device->handle, "_DOS", &args, NULL); |
1da177e4 | 605 | |
4be44fcd | 606 | Failed: |
d550d98d | 607 | return status; |
1da177e4 LT |
608 | } |
609 | ||
610 | /* | |
611 | * Arg: | |
612 | * device : video output device (LCD, CRT, ..) | |
613 | * | |
614 | * Return Value: | |
615 | * None | |
616 | * | |
98fb8fe1 | 617 | * Find out all required AML methods defined under the output |
1da177e4 LT |
618 | * device. |
619 | */ | |
620 | ||
4be44fcd | 621 | static void acpi_video_device_find_cap(struct acpi_video_device *device) |
1da177e4 | 622 | { |
1da177e4 LT |
623 | acpi_handle h_dummy1; |
624 | int i; | |
2f3d000a | 625 | u32 max_level = 0; |
1da177e4 LT |
626 | union acpi_object *obj = NULL; |
627 | struct acpi_video_device_brightness *br = NULL; | |
628 | ||
1da177e4 | 629 | |
98934def | 630 | memset(&device->cap, 0, sizeof(device->cap)); |
1da177e4 | 631 | |
90130268 | 632 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) { |
1da177e4 LT |
633 | device->cap._ADR = 1; |
634 | } | |
90130268 | 635 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCL", &h_dummy1))) { |
4be44fcd | 636 | device->cap._BCL = 1; |
1da177e4 | 637 | } |
90130268 | 638 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCM", &h_dummy1))) { |
4be44fcd | 639 | device->cap._BCM = 1; |
1da177e4 | 640 | } |
2f3d000a YL |
641 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle,"_BQC",&h_dummy1))) |
642 | device->cap._BQC = 1; | |
90130268 | 643 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) { |
4be44fcd | 644 | device->cap._DDC = 1; |
1da177e4 | 645 | } |
90130268 | 646 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DCS", &h_dummy1))) { |
1da177e4 LT |
647 | device->cap._DCS = 1; |
648 | } | |
90130268 | 649 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DGS", &h_dummy1))) { |
1da177e4 LT |
650 | device->cap._DGS = 1; |
651 | } | |
90130268 | 652 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DSS", &h_dummy1))) { |
1da177e4 LT |
653 | device->cap._DSS = 1; |
654 | } | |
655 | ||
f70ac0e9 DK |
656 | if (ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) { |
657 | ||
658 | if (obj->package.count >= 2) { | |
659 | int count = 0; | |
660 | union acpi_object *o; | |
661 | ||
662 | br = kzalloc(sizeof(*br), GFP_KERNEL); | |
663 | if (!br) { | |
664 | printk(KERN_ERR "can't allocate memory\n"); | |
1da177e4 | 665 | } else { |
f70ac0e9 DK |
666 | br->levels = kmalloc(obj->package.count * |
667 | sizeof *(br->levels), GFP_KERNEL); | |
668 | if (!br->levels) | |
669 | goto out; | |
670 | ||
671 | for (i = 0; i < obj->package.count; i++) { | |
672 | o = (union acpi_object *)&obj->package. | |
673 | elements[i]; | |
674 | if (o->type != ACPI_TYPE_INTEGER) { | |
675 | printk(KERN_ERR PREFIX "Invalid data\n"); | |
676 | continue; | |
677 | } | |
678 | br->levels[count] = (u32) o->integer.value; | |
679 | ||
680 | if (br->levels[count] > max_level) | |
681 | max_level = br->levels[count]; | |
682 | count++; | |
683 | } | |
684 | out: | |
685 | if (count < 2) { | |
686 | kfree(br->levels); | |
687 | kfree(br); | |
688 | } else { | |
689 | br->count = count; | |
690 | device->brightness = br; | |
691 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | |
692 | "found %d brightness levels\n", | |
693 | count)); | |
694 | } | |
1da177e4 LT |
695 | } |
696 | } | |
f70ac0e9 DK |
697 | |
698 | } else { | |
699 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available LCD brightness level\n")); | |
1da177e4 LT |
700 | } |
701 | ||
d1dd0c23 | 702 | kfree(obj); |
1da177e4 | 703 | |
f70ac0e9 | 704 | if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){ |
2f3d000a | 705 | unsigned long tmp; |
702ed512 | 706 | int result; |
2f3d000a YL |
707 | static int count = 0; |
708 | char *name; | |
2f3d000a YL |
709 | name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); |
710 | if (!name) | |
711 | return; | |
712 | ||
2f3d000a | 713 | sprintf(name, "acpi_video%d", count++); |
2f3d000a | 714 | acpi_video_device_lcd_get_level_current(device, &tmp); |
2f3d000a | 715 | device->backlight = backlight_device_register(name, |
599a52d1 RP |
716 | NULL, device, &acpi_backlight_ops); |
717 | device->backlight->props.max_brightness = max_level; | |
718 | device->backlight->props.brightness = (int)tmp; | |
719 | backlight_update_status(device->backlight); | |
2f3d000a | 720 | kfree(name); |
702ed512 ZR |
721 | |
722 | device->cdev = thermal_cooling_device_register("LCD", | |
723 | device->dev, &video_cooling_ops); | |
724 | if (device->cdev) { | |
725 | printk(KERN_INFO PREFIX | |
726 | "%s is registered as cooling_device%d\n", | |
727 | device->dev->dev.bus_id, device->cdev->id); | |
728 | result = sysfs_create_link(&device->dev->dev.kobj, | |
729 | &device->cdev->device.kobj, | |
730 | "thermal_cooling"); | |
731 | if (result) | |
732 | printk(KERN_ERR PREFIX "Create sysfs link\n"); | |
733 | result = sysfs_create_link(&device->cdev->device.kobj, | |
734 | &device->dev->dev.kobj, | |
735 | "device"); | |
736 | if (result) | |
737 | printk(KERN_ERR PREFIX "Create sysfs link\n"); | |
738 | } | |
2f3d000a | 739 | } |
23b0f015 LY |
740 | if (device->cap._DCS && device->cap._DSS){ |
741 | static int count = 0; | |
742 | char *name; | |
743 | name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); | |
744 | if (!name) | |
745 | return; | |
746 | sprintf(name, "acpi_video%d", count++); | |
747 | device->output_dev = video_output_register(name, | |
748 | NULL, device, &acpi_output_properties); | |
749 | kfree(name); | |
750 | } | |
d550d98d | 751 | return; |
1da177e4 LT |
752 | } |
753 | ||
754 | /* | |
755 | * Arg: | |
756 | * device : video output device (VGA) | |
757 | * | |
758 | * Return Value: | |
759 | * None | |
760 | * | |
98fb8fe1 | 761 | * Find out all required AML methods defined under the video bus device. |
1da177e4 LT |
762 | */ |
763 | ||
4be44fcd | 764 | static void acpi_video_bus_find_cap(struct acpi_video_bus *video) |
1da177e4 | 765 | { |
4be44fcd | 766 | acpi_handle h_dummy1; |
1da177e4 | 767 | |
98934def | 768 | memset(&video->cap, 0, sizeof(video->cap)); |
90130268 | 769 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) { |
1da177e4 LT |
770 | video->cap._DOS = 1; |
771 | } | |
90130268 | 772 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOD", &h_dummy1))) { |
1da177e4 LT |
773 | video->cap._DOD = 1; |
774 | } | |
90130268 | 775 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_ROM", &h_dummy1))) { |
1da177e4 LT |
776 | video->cap._ROM = 1; |
777 | } | |
90130268 | 778 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_GPD", &h_dummy1))) { |
1da177e4 LT |
779 | video->cap._GPD = 1; |
780 | } | |
90130268 | 781 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_SPD", &h_dummy1))) { |
1da177e4 LT |
782 | video->cap._SPD = 1; |
783 | } | |
90130268 | 784 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_VPO", &h_dummy1))) { |
1da177e4 LT |
785 | video->cap._VPO = 1; |
786 | } | |
787 | } | |
788 | ||
789 | /* | |
790 | * Check whether the video bus device has required AML method to | |
791 | * support the desired features | |
792 | */ | |
793 | ||
4be44fcd | 794 | static int acpi_video_bus_check(struct acpi_video_bus *video) |
1da177e4 | 795 | { |
4be44fcd | 796 | acpi_status status = -ENOENT; |
1da177e4 | 797 | |
1da177e4 LT |
798 | |
799 | if (!video) | |
d550d98d | 800 | return -EINVAL; |
1da177e4 LT |
801 | |
802 | /* Since there is no HID, CID and so on for VGA driver, we have | |
803 | * to check well known required nodes. | |
804 | */ | |
805 | ||
98fb8fe1 | 806 | /* Does this device support video switching? */ |
4be44fcd | 807 | if (video->cap._DOS) { |
1da177e4 LT |
808 | video->flags.multihead = 1; |
809 | status = 0; | |
810 | } | |
811 | ||
98fb8fe1 | 812 | /* Does this device support retrieving a video ROM? */ |
4be44fcd | 813 | if (video->cap._ROM) { |
1da177e4 LT |
814 | video->flags.rom = 1; |
815 | status = 0; | |
816 | } | |
817 | ||
98fb8fe1 | 818 | /* Does this device support configuring which video device to POST? */ |
4be44fcd | 819 | if (video->cap._GPD && video->cap._SPD && video->cap._VPO) { |
1da177e4 LT |
820 | video->flags.post = 1; |
821 | status = 0; | |
822 | } | |
823 | ||
d550d98d | 824 | return status; |
1da177e4 LT |
825 | } |
826 | ||
827 | /* -------------------------------------------------------------------------- | |
828 | FS Interface (/proc) | |
829 | -------------------------------------------------------------------------- */ | |
830 | ||
4be44fcd | 831 | static struct proc_dir_entry *acpi_video_dir; |
1da177e4 LT |
832 | |
833 | /* video devices */ | |
834 | ||
4be44fcd | 835 | static int acpi_video_device_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 836 | { |
50dd0969 | 837 | struct acpi_video_device *dev = seq->private; |
1da177e4 | 838 | |
1da177e4 LT |
839 | |
840 | if (!dev) | |
841 | goto end; | |
842 | ||
843 | seq_printf(seq, "device_id: 0x%04x\n", (u32) dev->device_id); | |
844 | seq_printf(seq, "type: "); | |
845 | if (dev->flags.crt) | |
846 | seq_printf(seq, "CRT\n"); | |
847 | else if (dev->flags.lcd) | |
848 | seq_printf(seq, "LCD\n"); | |
849 | else if (dev->flags.tvout) | |
850 | seq_printf(seq, "TVOUT\n"); | |
82cae999 RZ |
851 | else if (dev->flags.dvi) |
852 | seq_printf(seq, "DVI\n"); | |
1da177e4 LT |
853 | else |
854 | seq_printf(seq, "UNKNOWN\n"); | |
855 | ||
4be44fcd | 856 | seq_printf(seq, "known by bios: %s\n", dev->flags.bios ? "yes" : "no"); |
1da177e4 | 857 | |
4be44fcd | 858 | end: |
d550d98d | 859 | return 0; |
1da177e4 LT |
860 | } |
861 | ||
862 | static int | |
4be44fcd | 863 | acpi_video_device_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
864 | { |
865 | return single_open(file, acpi_video_device_info_seq_show, | |
866 | PDE(inode)->data); | |
867 | } | |
868 | ||
4be44fcd | 869 | static int acpi_video_device_state_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 870 | { |
4be44fcd | 871 | int status; |
50dd0969 | 872 | struct acpi_video_device *dev = seq->private; |
4be44fcd | 873 | unsigned long state; |
1da177e4 | 874 | |
1da177e4 LT |
875 | |
876 | if (!dev) | |
877 | goto end; | |
878 | ||
879 | status = acpi_video_device_get_state(dev, &state); | |
880 | seq_printf(seq, "state: "); | |
881 | if (ACPI_SUCCESS(status)) | |
882 | seq_printf(seq, "0x%02lx\n", state); | |
883 | else | |
884 | seq_printf(seq, "<not supported>\n"); | |
885 | ||
886 | status = acpi_video_device_query(dev, &state); | |
887 | seq_printf(seq, "query: "); | |
888 | if (ACPI_SUCCESS(status)) | |
889 | seq_printf(seq, "0x%02lx\n", state); | |
890 | else | |
891 | seq_printf(seq, "<not supported>\n"); | |
892 | ||
4be44fcd | 893 | end: |
d550d98d | 894 | return 0; |
1da177e4 LT |
895 | } |
896 | ||
897 | static int | |
4be44fcd | 898 | acpi_video_device_state_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
899 | { |
900 | return single_open(file, acpi_video_device_state_seq_show, | |
901 | PDE(inode)->data); | |
902 | } | |
903 | ||
904 | static ssize_t | |
4be44fcd LB |
905 | acpi_video_device_write_state(struct file *file, |
906 | const char __user * buffer, | |
907 | size_t count, loff_t * data) | |
1da177e4 | 908 | { |
4be44fcd | 909 | int status; |
50dd0969 JE |
910 | struct seq_file *m = file->private_data; |
911 | struct acpi_video_device *dev = m->private; | |
4be44fcd LB |
912 | char str[12] = { 0 }; |
913 | u32 state = 0; | |
1da177e4 | 914 | |
1da177e4 LT |
915 | |
916 | if (!dev || count + 1 > sizeof str) | |
d550d98d | 917 | return -EINVAL; |
1da177e4 LT |
918 | |
919 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 920 | return -EFAULT; |
1da177e4 LT |
921 | |
922 | str[count] = 0; | |
923 | state = simple_strtoul(str, NULL, 0); | |
4be44fcd | 924 | state &= ((1ul << 31) | (1ul << 30) | (1ul << 0)); |
1da177e4 LT |
925 | |
926 | status = acpi_video_device_set_state(dev, state); | |
927 | ||
928 | if (status) | |
d550d98d | 929 | return -EFAULT; |
1da177e4 | 930 | |
d550d98d | 931 | return count; |
1da177e4 LT |
932 | } |
933 | ||
934 | static int | |
4be44fcd | 935 | acpi_video_device_brightness_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 936 | { |
50dd0969 | 937 | struct acpi_video_device *dev = seq->private; |
4be44fcd | 938 | int i; |
1da177e4 | 939 | |
1da177e4 LT |
940 | |
941 | if (!dev || !dev->brightness) { | |
942 | seq_printf(seq, "<not supported>\n"); | |
d550d98d | 943 | return 0; |
1da177e4 LT |
944 | } |
945 | ||
946 | seq_printf(seq, "levels: "); | |
947 | for (i = 0; i < dev->brightness->count; i++) | |
948 | seq_printf(seq, " %d", dev->brightness->levels[i]); | |
949 | seq_printf(seq, "\ncurrent: %d\n", dev->brightness->curr); | |
950 | ||
d550d98d | 951 | return 0; |
1da177e4 LT |
952 | } |
953 | ||
954 | static int | |
4be44fcd | 955 | acpi_video_device_brightness_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
956 | { |
957 | return single_open(file, acpi_video_device_brightness_seq_show, | |
958 | PDE(inode)->data); | |
959 | } | |
960 | ||
961 | static ssize_t | |
4be44fcd LB |
962 | acpi_video_device_write_brightness(struct file *file, |
963 | const char __user * buffer, | |
964 | size_t count, loff_t * data) | |
1da177e4 | 965 | { |
50dd0969 JE |
966 | struct seq_file *m = file->private_data; |
967 | struct acpi_video_device *dev = m->private; | |
c88c5786 | 968 | char str[5] = { 0 }; |
4be44fcd LB |
969 | unsigned int level = 0; |
970 | int i; | |
1da177e4 | 971 | |
1da177e4 | 972 | |
59d399d3 | 973 | if (!dev || !dev->brightness || count + 1 > sizeof str) |
d550d98d | 974 | return -EINVAL; |
1da177e4 LT |
975 | |
976 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 977 | return -EFAULT; |
1da177e4 LT |
978 | |
979 | str[count] = 0; | |
980 | level = simple_strtoul(str, NULL, 0); | |
4be44fcd | 981 | |
1da177e4 | 982 | if (level > 100) |
d550d98d | 983 | return -EFAULT; |
1da177e4 | 984 | |
98fb8fe1 | 985 | /* validate through the list of available levels */ |
1da177e4 LT |
986 | for (i = 0; i < dev->brightness->count; i++) |
987 | if (level == dev->brightness->levels[i]) { | |
4be44fcd LB |
988 | if (ACPI_SUCCESS |
989 | (acpi_video_device_lcd_set_level(dev, level))) | |
1da177e4 LT |
990 | dev->brightness->curr = level; |
991 | break; | |
992 | } | |
993 | ||
d550d98d | 994 | return count; |
1da177e4 LT |
995 | } |
996 | ||
4be44fcd | 997 | static int acpi_video_device_EDID_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 998 | { |
50dd0969 | 999 | struct acpi_video_device *dev = seq->private; |
4be44fcd LB |
1000 | int status; |
1001 | int i; | |
1002 | union acpi_object *edid = NULL; | |
1da177e4 | 1003 | |
1da177e4 LT |
1004 | |
1005 | if (!dev) | |
1006 | goto out; | |
1007 | ||
4be44fcd | 1008 | status = acpi_video_device_EDID(dev, &edid, 128); |
1da177e4 | 1009 | if (ACPI_FAILURE(status)) { |
4be44fcd | 1010 | status = acpi_video_device_EDID(dev, &edid, 256); |
1da177e4 LT |
1011 | } |
1012 | ||
1013 | if (ACPI_FAILURE(status)) { | |
1014 | goto out; | |
1015 | } | |
1016 | ||
1017 | if (edid && edid->type == ACPI_TYPE_BUFFER) { | |
1018 | for (i = 0; i < edid->buffer.length; i++) | |
1019 | seq_putc(seq, edid->buffer.pointer[i]); | |
1020 | } | |
1021 | ||
4be44fcd | 1022 | out: |
1da177e4 LT |
1023 | if (!edid) |
1024 | seq_printf(seq, "<not supported>\n"); | |
1025 | else | |
1026 | kfree(edid); | |
1027 | ||
d550d98d | 1028 | return 0; |
1da177e4 LT |
1029 | } |
1030 | ||
1031 | static int | |
4be44fcd | 1032 | acpi_video_device_EDID_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1033 | { |
1034 | return single_open(file, acpi_video_device_EDID_seq_show, | |
1035 | PDE(inode)->data); | |
1036 | } | |
1037 | ||
4be44fcd | 1038 | static int acpi_video_device_add_fs(struct acpi_device *device) |
1da177e4 | 1039 | { |
4be44fcd | 1040 | struct proc_dir_entry *entry = NULL; |
1da177e4 LT |
1041 | struct acpi_video_device *vid_dev; |
1042 | ||
1da177e4 LT |
1043 | |
1044 | if (!device) | |
d550d98d | 1045 | return -ENODEV; |
1da177e4 | 1046 | |
50dd0969 | 1047 | vid_dev = acpi_driver_data(device); |
1da177e4 | 1048 | if (!vid_dev) |
d550d98d | 1049 | return -ENODEV; |
1da177e4 LT |
1050 | |
1051 | if (!acpi_device_dir(device)) { | |
1052 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), | |
4be44fcd | 1053 | vid_dev->video->dir); |
1da177e4 | 1054 | if (!acpi_device_dir(device)) |
d550d98d | 1055 | return -ENODEV; |
1da177e4 LT |
1056 | acpi_device_dir(device)->owner = THIS_MODULE; |
1057 | } | |
1058 | ||
1059 | /* 'info' [R] */ | |
1060 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); | |
1061 | if (!entry) | |
d550d98d | 1062 | return -ENODEV; |
1da177e4 LT |
1063 | else { |
1064 | entry->proc_fops = &acpi_video_device_info_fops; | |
1065 | entry->data = acpi_driver_data(device); | |
1066 | entry->owner = THIS_MODULE; | |
1067 | } | |
1068 | ||
1069 | /* 'state' [R/W] */ | |
4be44fcd LB |
1070 | entry = |
1071 | create_proc_entry("state", S_IFREG | S_IRUGO | S_IWUSR, | |
1072 | acpi_device_dir(device)); | |
1da177e4 | 1073 | if (!entry) |
d550d98d | 1074 | return -ENODEV; |
1da177e4 | 1075 | else { |
d479e908 | 1076 | acpi_video_device_state_fops.write = acpi_video_device_write_state; |
1da177e4 | 1077 | entry->proc_fops = &acpi_video_device_state_fops; |
1da177e4 LT |
1078 | entry->data = acpi_driver_data(device); |
1079 | entry->owner = THIS_MODULE; | |
1080 | } | |
1081 | ||
1082 | /* 'brightness' [R/W] */ | |
4be44fcd LB |
1083 | entry = |
1084 | create_proc_entry("brightness", S_IFREG | S_IRUGO | S_IWUSR, | |
1085 | acpi_device_dir(device)); | |
1da177e4 | 1086 | if (!entry) |
d550d98d | 1087 | return -ENODEV; |
1da177e4 | 1088 | else { |
d479e908 | 1089 | acpi_video_device_brightness_fops.write = acpi_video_device_write_brightness; |
1da177e4 | 1090 | entry->proc_fops = &acpi_video_device_brightness_fops; |
1da177e4 LT |
1091 | entry->data = acpi_driver_data(device); |
1092 | entry->owner = THIS_MODULE; | |
1093 | } | |
1094 | ||
1095 | /* 'EDID' [R] */ | |
1096 | entry = create_proc_entry("EDID", S_IRUGO, acpi_device_dir(device)); | |
1097 | if (!entry) | |
d550d98d | 1098 | return -ENODEV; |
1da177e4 LT |
1099 | else { |
1100 | entry->proc_fops = &acpi_video_device_EDID_fops; | |
1101 | entry->data = acpi_driver_data(device); | |
1102 | entry->owner = THIS_MODULE; | |
1103 | } | |
1104 | ||
d550d98d | 1105 | return 0; |
1da177e4 LT |
1106 | } |
1107 | ||
4be44fcd | 1108 | static int acpi_video_device_remove_fs(struct acpi_device *device) |
1da177e4 LT |
1109 | { |
1110 | struct acpi_video_device *vid_dev; | |
1da177e4 | 1111 | |
50dd0969 | 1112 | vid_dev = acpi_driver_data(device); |
1da177e4 | 1113 | if (!vid_dev || !vid_dev->video || !vid_dev->video->dir) |
d550d98d | 1114 | return -ENODEV; |
1da177e4 LT |
1115 | |
1116 | if (acpi_device_dir(device)) { | |
1117 | remove_proc_entry("info", acpi_device_dir(device)); | |
1118 | remove_proc_entry("state", acpi_device_dir(device)); | |
1119 | remove_proc_entry("brightness", acpi_device_dir(device)); | |
1120 | remove_proc_entry("EDID", acpi_device_dir(device)); | |
4be44fcd | 1121 | remove_proc_entry(acpi_device_bid(device), vid_dev->video->dir); |
1da177e4 LT |
1122 | acpi_device_dir(device) = NULL; |
1123 | } | |
1124 | ||
d550d98d | 1125 | return 0; |
1da177e4 LT |
1126 | } |
1127 | ||
1da177e4 | 1128 | /* video bus */ |
4be44fcd | 1129 | static int acpi_video_bus_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1130 | { |
50dd0969 | 1131 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1132 | |
1da177e4 LT |
1133 | |
1134 | if (!video) | |
1135 | goto end; | |
1136 | ||
1137 | seq_printf(seq, "Switching heads: %s\n", | |
4be44fcd | 1138 | video->flags.multihead ? "yes" : "no"); |
1da177e4 | 1139 | seq_printf(seq, "Video ROM: %s\n", |
4be44fcd | 1140 | video->flags.rom ? "yes" : "no"); |
1da177e4 | 1141 | seq_printf(seq, "Device to be POSTed on boot: %s\n", |
4be44fcd | 1142 | video->flags.post ? "yes" : "no"); |
1da177e4 | 1143 | |
4be44fcd | 1144 | end: |
d550d98d | 1145 | return 0; |
1da177e4 LT |
1146 | } |
1147 | ||
4be44fcd | 1148 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1149 | { |
4be44fcd LB |
1150 | return single_open(file, acpi_video_bus_info_seq_show, |
1151 | PDE(inode)->data); | |
1da177e4 LT |
1152 | } |
1153 | ||
4be44fcd | 1154 | static int acpi_video_bus_ROM_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1155 | { |
50dd0969 | 1156 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1157 | |
1da177e4 LT |
1158 | |
1159 | if (!video) | |
1160 | goto end; | |
1161 | ||
1162 | printk(KERN_INFO PREFIX "Please implement %s\n", __FUNCTION__); | |
1163 | seq_printf(seq, "<TODO>\n"); | |
1164 | ||
4be44fcd | 1165 | end: |
d550d98d | 1166 | return 0; |
1da177e4 LT |
1167 | } |
1168 | ||
4be44fcd | 1169 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1170 | { |
1171 | return single_open(file, acpi_video_bus_ROM_seq_show, PDE(inode)->data); | |
1172 | } | |
1173 | ||
4be44fcd | 1174 | static int acpi_video_bus_POST_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1175 | { |
50dd0969 | 1176 | struct acpi_video_bus *video = seq->private; |
4be44fcd LB |
1177 | unsigned long options; |
1178 | int status; | |
1da177e4 | 1179 | |
1da177e4 LT |
1180 | |
1181 | if (!video) | |
1182 | goto end; | |
1183 | ||
1184 | status = acpi_video_bus_POST_options(video, &options); | |
1185 | if (ACPI_SUCCESS(status)) { | |
1186 | if (!(options & 1)) { | |
4be44fcd LB |
1187 | printk(KERN_WARNING PREFIX |
1188 | "The motherboard VGA device is not listed as a possible POST device.\n"); | |
1189 | printk(KERN_WARNING PREFIX | |
98fb8fe1 | 1190 | "This indicates a BIOS bug. Please contact the manufacturer.\n"); |
1da177e4 LT |
1191 | } |
1192 | printk("%lx\n", options); | |
98fb8fe1 | 1193 | seq_printf(seq, "can POST: <integrated video>"); |
1da177e4 LT |
1194 | if (options & 2) |
1195 | seq_printf(seq, " <PCI video>"); | |
1196 | if (options & 4) | |
1197 | seq_printf(seq, " <AGP video>"); | |
1198 | seq_putc(seq, '\n'); | |
1199 | } else | |
1200 | seq_printf(seq, "<not supported>\n"); | |
4be44fcd | 1201 | end: |
d550d98d | 1202 | return 0; |
1da177e4 LT |
1203 | } |
1204 | ||
1205 | static int | |
4be44fcd | 1206 | acpi_video_bus_POST_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1207 | { |
4be44fcd LB |
1208 | return single_open(file, acpi_video_bus_POST_info_seq_show, |
1209 | PDE(inode)->data); | |
1da177e4 LT |
1210 | } |
1211 | ||
4be44fcd | 1212 | static int acpi_video_bus_POST_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1213 | { |
50dd0969 | 1214 | struct acpi_video_bus *video = seq->private; |
4be44fcd LB |
1215 | int status; |
1216 | unsigned long id; | |
1da177e4 | 1217 | |
1da177e4 LT |
1218 | |
1219 | if (!video) | |
1220 | goto end; | |
1221 | ||
4be44fcd | 1222 | status = acpi_video_bus_get_POST(video, &id); |
1da177e4 LT |
1223 | if (!ACPI_SUCCESS(status)) { |
1224 | seq_printf(seq, "<not supported>\n"); | |
1225 | goto end; | |
1226 | } | |
98fb8fe1 | 1227 | seq_printf(seq, "device POSTed is <%s>\n", device_decode[id & 3]); |
1da177e4 | 1228 | |
4be44fcd | 1229 | end: |
d550d98d | 1230 | return 0; |
1da177e4 LT |
1231 | } |
1232 | ||
4be44fcd | 1233 | static int acpi_video_bus_DOS_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1234 | { |
50dd0969 | 1235 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1236 | |
1da177e4 | 1237 | |
4be44fcd | 1238 | seq_printf(seq, "DOS setting: <%d>\n", video->dos_setting); |
1da177e4 | 1239 | |
d550d98d | 1240 | return 0; |
1da177e4 LT |
1241 | } |
1242 | ||
4be44fcd | 1243 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1244 | { |
4be44fcd LB |
1245 | return single_open(file, acpi_video_bus_POST_seq_show, |
1246 | PDE(inode)->data); | |
1da177e4 LT |
1247 | } |
1248 | ||
4be44fcd | 1249 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1250 | { |
1251 | return single_open(file, acpi_video_bus_DOS_seq_show, PDE(inode)->data); | |
1252 | } | |
1253 | ||
1254 | static ssize_t | |
4be44fcd LB |
1255 | acpi_video_bus_write_POST(struct file *file, |
1256 | const char __user * buffer, | |
1257 | size_t count, loff_t * data) | |
1da177e4 | 1258 | { |
4be44fcd | 1259 | int status; |
50dd0969 JE |
1260 | struct seq_file *m = file->private_data; |
1261 | struct acpi_video_bus *video = m->private; | |
4be44fcd LB |
1262 | char str[12] = { 0 }; |
1263 | unsigned long opt, options; | |
1da177e4 | 1264 | |
1da177e4 | 1265 | |
1da177e4 | 1266 | if (!video || count + 1 > sizeof str) |
d550d98d | 1267 | return -EINVAL; |
1da177e4 LT |
1268 | |
1269 | status = acpi_video_bus_POST_options(video, &options); | |
1270 | if (!ACPI_SUCCESS(status)) | |
d550d98d | 1271 | return -EINVAL; |
1da177e4 LT |
1272 | |
1273 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 1274 | return -EFAULT; |
1da177e4 LT |
1275 | |
1276 | str[count] = 0; | |
1277 | opt = strtoul(str, NULL, 0); | |
1278 | if (opt > 3) | |
d550d98d | 1279 | return -EFAULT; |
1da177e4 | 1280 | |
98fb8fe1 | 1281 | /* just in case an OEM 'forgot' the motherboard... */ |
1da177e4 LT |
1282 | options |= 1; |
1283 | ||
1284 | if (options & (1ul << opt)) { | |
4be44fcd | 1285 | status = acpi_video_bus_set_POST(video, opt); |
1da177e4 | 1286 | if (!ACPI_SUCCESS(status)) |
d550d98d | 1287 | return -EFAULT; |
1da177e4 LT |
1288 | |
1289 | } | |
1290 | ||
d550d98d | 1291 | return count; |
1da177e4 LT |
1292 | } |
1293 | ||
1294 | static ssize_t | |
4be44fcd LB |
1295 | acpi_video_bus_write_DOS(struct file *file, |
1296 | const char __user * buffer, | |
1297 | size_t count, loff_t * data) | |
1da177e4 | 1298 | { |
4be44fcd | 1299 | int status; |
50dd0969 JE |
1300 | struct seq_file *m = file->private_data; |
1301 | struct acpi_video_bus *video = m->private; | |
4be44fcd LB |
1302 | char str[12] = { 0 }; |
1303 | unsigned long opt; | |
1da177e4 | 1304 | |
1da177e4 | 1305 | |
1da177e4 | 1306 | if (!video || count + 1 > sizeof str) |
d550d98d | 1307 | return -EINVAL; |
1da177e4 LT |
1308 | |
1309 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 1310 | return -EFAULT; |
1da177e4 LT |
1311 | |
1312 | str[count] = 0; | |
1313 | opt = strtoul(str, NULL, 0); | |
1314 | if (opt > 7) | |
d550d98d | 1315 | return -EFAULT; |
1da177e4 | 1316 | |
4be44fcd | 1317 | status = acpi_video_bus_DOS(video, opt & 0x3, (opt & 0x4) >> 2); |
1da177e4 LT |
1318 | |
1319 | if (!ACPI_SUCCESS(status)) | |
d550d98d | 1320 | return -EFAULT; |
1da177e4 | 1321 | |
d550d98d | 1322 | return count; |
1da177e4 LT |
1323 | } |
1324 | ||
4be44fcd | 1325 | static int acpi_video_bus_add_fs(struct acpi_device *device) |
1da177e4 | 1326 | { |
4be44fcd LB |
1327 | struct proc_dir_entry *entry = NULL; |
1328 | struct acpi_video_bus *video; | |
1da177e4 | 1329 | |
1da177e4 | 1330 | |
50dd0969 | 1331 | video = acpi_driver_data(device); |
1da177e4 LT |
1332 | |
1333 | if (!acpi_device_dir(device)) { | |
1334 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), | |
4be44fcd | 1335 | acpi_video_dir); |
1da177e4 | 1336 | if (!acpi_device_dir(device)) |
d550d98d | 1337 | return -ENODEV; |
1da177e4 LT |
1338 | video->dir = acpi_device_dir(device); |
1339 | acpi_device_dir(device)->owner = THIS_MODULE; | |
1340 | } | |
1341 | ||
1342 | /* 'info' [R] */ | |
1343 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); | |
1344 | if (!entry) | |
d550d98d | 1345 | return -ENODEV; |
1da177e4 LT |
1346 | else { |
1347 | entry->proc_fops = &acpi_video_bus_info_fops; | |
1348 | entry->data = acpi_driver_data(device); | |
1349 | entry->owner = THIS_MODULE; | |
1350 | } | |
1351 | ||
1352 | /* 'ROM' [R] */ | |
1353 | entry = create_proc_entry("ROM", S_IRUGO, acpi_device_dir(device)); | |
1354 | if (!entry) | |
d550d98d | 1355 | return -ENODEV; |
1da177e4 LT |
1356 | else { |
1357 | entry->proc_fops = &acpi_video_bus_ROM_fops; | |
1358 | entry->data = acpi_driver_data(device); | |
1359 | entry->owner = THIS_MODULE; | |
1360 | } | |
1361 | ||
1362 | /* 'POST_info' [R] */ | |
4be44fcd LB |
1363 | entry = |
1364 | create_proc_entry("POST_info", S_IRUGO, acpi_device_dir(device)); | |
1da177e4 | 1365 | if (!entry) |
d550d98d | 1366 | return -ENODEV; |
1da177e4 LT |
1367 | else { |
1368 | entry->proc_fops = &acpi_video_bus_POST_info_fops; | |
1369 | entry->data = acpi_driver_data(device); | |
1370 | entry->owner = THIS_MODULE; | |
1371 | } | |
1372 | ||
1373 | /* 'POST' [R/W] */ | |
4be44fcd LB |
1374 | entry = |
1375 | create_proc_entry("POST", S_IFREG | S_IRUGO | S_IRUSR, | |
1376 | acpi_device_dir(device)); | |
1da177e4 | 1377 | if (!entry) |
d550d98d | 1378 | return -ENODEV; |
1da177e4 | 1379 | else { |
d479e908 | 1380 | acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST; |
1da177e4 | 1381 | entry->proc_fops = &acpi_video_bus_POST_fops; |
1da177e4 LT |
1382 | entry->data = acpi_driver_data(device); |
1383 | entry->owner = THIS_MODULE; | |
1384 | } | |
1385 | ||
1386 | /* 'DOS' [R/W] */ | |
4be44fcd LB |
1387 | entry = |
1388 | create_proc_entry("DOS", S_IFREG | S_IRUGO | S_IRUSR, | |
1389 | acpi_device_dir(device)); | |
1da177e4 | 1390 | if (!entry) |
d550d98d | 1391 | return -ENODEV; |
1da177e4 | 1392 | else { |
d479e908 | 1393 | acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS; |
1da177e4 | 1394 | entry->proc_fops = &acpi_video_bus_DOS_fops; |
1da177e4 LT |
1395 | entry->data = acpi_driver_data(device); |
1396 | entry->owner = THIS_MODULE; | |
1397 | } | |
1398 | ||
d550d98d | 1399 | return 0; |
1da177e4 LT |
1400 | } |
1401 | ||
4be44fcd | 1402 | static int acpi_video_bus_remove_fs(struct acpi_device *device) |
1da177e4 | 1403 | { |
4be44fcd | 1404 | struct acpi_video_bus *video; |
1da177e4 | 1405 | |
1da177e4 | 1406 | |
50dd0969 | 1407 | video = acpi_driver_data(device); |
1da177e4 LT |
1408 | |
1409 | if (acpi_device_dir(device)) { | |
1410 | remove_proc_entry("info", acpi_device_dir(device)); | |
1411 | remove_proc_entry("ROM", acpi_device_dir(device)); | |
1412 | remove_proc_entry("POST_info", acpi_device_dir(device)); | |
1413 | remove_proc_entry("POST", acpi_device_dir(device)); | |
1414 | remove_proc_entry("DOS", acpi_device_dir(device)); | |
4be44fcd | 1415 | remove_proc_entry(acpi_device_bid(device), acpi_video_dir); |
1da177e4 LT |
1416 | acpi_device_dir(device) = NULL; |
1417 | } | |
1418 | ||
d550d98d | 1419 | return 0; |
1da177e4 LT |
1420 | } |
1421 | ||
1422 | /* -------------------------------------------------------------------------- | |
1423 | Driver Interface | |
1424 | -------------------------------------------------------------------------- */ | |
1425 | ||
1426 | /* device interface */ | |
82cae999 RZ |
1427 | static struct acpi_video_device_attrib* |
1428 | acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id) | |
1429 | { | |
1430 | int count; | |
1431 | ||
1432 | for(count = 0; count < video->attached_count; count++) | |
1433 | if((video->attached_array[count].value.int_val & 0xffff) == device_id) | |
1434 | return &(video->attached_array[count].value.attrib); | |
1435 | return NULL; | |
1436 | } | |
1da177e4 LT |
1437 | |
1438 | static int | |
4be44fcd LB |
1439 | acpi_video_bus_get_one_device(struct acpi_device *device, |
1440 | struct acpi_video_bus *video) | |
1da177e4 | 1441 | { |
4be44fcd | 1442 | unsigned long device_id; |
973bf491 | 1443 | int status; |
4be44fcd | 1444 | struct acpi_video_device *data; |
82cae999 | 1445 | struct acpi_video_device_attrib* attribute; |
1da177e4 LT |
1446 | |
1447 | if (!device || !video) | |
d550d98d | 1448 | return -EINVAL; |
1da177e4 | 1449 | |
4be44fcd LB |
1450 | status = |
1451 | acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id); | |
1da177e4 LT |
1452 | if (ACPI_SUCCESS(status)) { |
1453 | ||
36bcbec7 | 1454 | data = kzalloc(sizeof(struct acpi_video_device), GFP_KERNEL); |
1da177e4 | 1455 | if (!data) |
d550d98d | 1456 | return -ENOMEM; |
1da177e4 | 1457 | |
1da177e4 LT |
1458 | strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME); |
1459 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); | |
1460 | acpi_driver_data(device) = data; | |
1461 | ||
1462 | data->device_id = device_id; | |
1463 | data->video = video; | |
1464 | data->dev = device; | |
1465 | ||
82cae999 RZ |
1466 | attribute = acpi_video_get_device_attr(video, device_id); |
1467 | ||
1468 | if((attribute != NULL) && attribute->device_id_scheme) { | |
1469 | switch (attribute->display_type) { | |
1470 | case ACPI_VIDEO_DISPLAY_CRT: | |
1471 | data->flags.crt = 1; | |
1472 | break; | |
1473 | case ACPI_VIDEO_DISPLAY_TV: | |
1474 | data->flags.tvout = 1; | |
1475 | break; | |
1476 | case ACPI_VIDEO_DISPLAY_DVI: | |
1477 | data->flags.dvi = 1; | |
1478 | break; | |
1479 | case ACPI_VIDEO_DISPLAY_LCD: | |
1480 | data->flags.lcd = 1; | |
1481 | break; | |
1482 | default: | |
1483 | data->flags.unknown = 1; | |
1484 | break; | |
1485 | } | |
1486 | if(attribute->bios_can_detect) | |
1487 | data->flags.bios = 1; | |
1488 | } else | |
1da177e4 | 1489 | data->flags.unknown = 1; |
4be44fcd | 1490 | |
1da177e4 LT |
1491 | acpi_video_device_bind(video, data); |
1492 | acpi_video_device_find_cap(data); | |
1493 | ||
90130268 | 1494 | status = acpi_install_notify_handler(device->handle, |
4be44fcd LB |
1495 | ACPI_DEVICE_NOTIFY, |
1496 | acpi_video_device_notify, | |
1497 | data); | |
1da177e4 LT |
1498 | if (ACPI_FAILURE(status)) { |
1499 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, | |
4be44fcd | 1500 | "Error installing notify handler\n")); |
973bf491 YL |
1501 | if(data->brightness) |
1502 | kfree(data->brightness->levels); | |
1503 | kfree(data->brightness); | |
1504 | kfree(data); | |
1505 | return -ENODEV; | |
1da177e4 LT |
1506 | } |
1507 | ||
bbac81f5 | 1508 | mutex_lock(&video->device_list_lock); |
1da177e4 | 1509 | list_add_tail(&data->entry, &video->video_device_list); |
bbac81f5 | 1510 | mutex_unlock(&video->device_list_lock); |
1da177e4 LT |
1511 | |
1512 | acpi_video_device_add_fs(device); | |
1513 | ||
d550d98d | 1514 | return 0; |
1da177e4 LT |
1515 | } |
1516 | ||
d550d98d | 1517 | return -ENOENT; |
1da177e4 LT |
1518 | } |
1519 | ||
1520 | /* | |
1521 | * Arg: | |
1522 | * video : video bus device | |
1523 | * | |
1524 | * Return: | |
1525 | * none | |
1526 | * | |
1527 | * Enumerate the video device list of the video bus, | |
1528 | * bind the ids with the corresponding video devices | |
1529 | * under the video bus. | |
4be44fcd | 1530 | */ |
1da177e4 | 1531 | |
4be44fcd | 1532 | static void acpi_video_device_rebind(struct acpi_video_bus *video) |
1da177e4 | 1533 | { |
ff102ea9 DT |
1534 | struct acpi_video_device *dev; |
1535 | ||
bbac81f5 | 1536 | mutex_lock(&video->device_list_lock); |
ff102ea9 DT |
1537 | |
1538 | list_for_each_entry(dev, &video->video_device_list, entry) | |
4be44fcd | 1539 | acpi_video_device_bind(video, dev); |
ff102ea9 | 1540 | |
bbac81f5 | 1541 | mutex_unlock(&video->device_list_lock); |
1da177e4 LT |
1542 | } |
1543 | ||
1544 | /* | |
1545 | * Arg: | |
1546 | * video : video bus device | |
1547 | * device : video output device under the video | |
1548 | * bus | |
1549 | * | |
1550 | * Return: | |
1551 | * none | |
1552 | * | |
1553 | * Bind the ids with the corresponding video devices | |
1554 | * under the video bus. | |
4be44fcd | 1555 | */ |
1da177e4 LT |
1556 | |
1557 | static void | |
4be44fcd LB |
1558 | acpi_video_device_bind(struct acpi_video_bus *video, |
1559 | struct acpi_video_device *device) | |
1da177e4 | 1560 | { |
4be44fcd | 1561 | int i; |
1da177e4 LT |
1562 | |
1563 | #define IDS_VAL(i) video->attached_array[i].value.int_val | |
1564 | #define IDS_BIND(i) video->attached_array[i].bind_info | |
4be44fcd LB |
1565 | |
1566 | for (i = 0; IDS_VAL(i) != ACPI_VIDEO_HEAD_INVALID && | |
1567 | i < video->attached_count; i++) { | |
1568 | if (device->device_id == (IDS_VAL(i) & 0xffff)) { | |
1da177e4 LT |
1569 | IDS_BIND(i) = device; |
1570 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "device_bind %d\n", i)); | |
1571 | } | |
1572 | } | |
1573 | #undef IDS_VAL | |
1574 | #undef IDS_BIND | |
1575 | } | |
1576 | ||
1577 | /* | |
1578 | * Arg: | |
1579 | * video : video bus device | |
1580 | * | |
1581 | * Return: | |
1582 | * < 0 : error | |
1583 | * | |
1584 | * Call _DOD to enumerate all devices attached to display adapter | |
1585 | * | |
4be44fcd | 1586 | */ |
1da177e4 LT |
1587 | |
1588 | static int acpi_video_device_enumerate(struct acpi_video_bus *video) | |
1589 | { | |
4be44fcd LB |
1590 | int status; |
1591 | int count; | |
1592 | int i; | |
1da177e4 | 1593 | struct acpi_video_enumerated_device *active_device_list; |
4be44fcd LB |
1594 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
1595 | union acpi_object *dod = NULL; | |
1596 | union acpi_object *obj; | |
1da177e4 | 1597 | |
90130268 | 1598 | status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer); |
1da177e4 | 1599 | if (!ACPI_SUCCESS(status)) { |
a6fc6720 | 1600 | ACPI_EXCEPTION((AE_INFO, status, "Evaluating _DOD")); |
d550d98d | 1601 | return status; |
1da177e4 LT |
1602 | } |
1603 | ||
50dd0969 | 1604 | dod = buffer.pointer; |
1da177e4 | 1605 | if (!dod || (dod->type != ACPI_TYPE_PACKAGE)) { |
a6fc6720 | 1606 | ACPI_EXCEPTION((AE_INFO, status, "Invalid _DOD data")); |
1da177e4 LT |
1607 | status = -EFAULT; |
1608 | goto out; | |
1609 | } | |
1610 | ||
1611 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d video heads in _DOD\n", | |
4be44fcd | 1612 | dod->package.count)); |
1da177e4 | 1613 | |
4be44fcd LB |
1614 | active_device_list = kmalloc((1 + |
1615 | dod->package.count) * | |
1616 | sizeof(struct | |
1617 | acpi_video_enumerated_device), | |
1618 | GFP_KERNEL); | |
1da177e4 LT |
1619 | |
1620 | if (!active_device_list) { | |
1621 | status = -ENOMEM; | |
1622 | goto out; | |
1623 | } | |
1624 | ||
1625 | count = 0; | |
1626 | for (i = 0; i < dod->package.count; i++) { | |
50dd0969 | 1627 | obj = &dod->package.elements[i]; |
1da177e4 LT |
1628 | |
1629 | if (obj->type != ACPI_TYPE_INTEGER) { | |
6468463a | 1630 | printk(KERN_ERR PREFIX "Invalid _DOD data\n"); |
4be44fcd LB |
1631 | active_device_list[i].value.int_val = |
1632 | ACPI_VIDEO_HEAD_INVALID; | |
1da177e4 LT |
1633 | } |
1634 | active_device_list[i].value.int_val = obj->integer.value; | |
1635 | active_device_list[i].bind_info = NULL; | |
4be44fcd LB |
1636 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "dod element[%d] = %d\n", i, |
1637 | (int)obj->integer.value)); | |
1da177e4 LT |
1638 | count++; |
1639 | } | |
1640 | active_device_list[count].value.int_val = ACPI_VIDEO_HEAD_END; | |
1641 | ||
6044ec88 | 1642 | kfree(video->attached_array); |
4be44fcd | 1643 | |
1da177e4 LT |
1644 | video->attached_array = active_device_list; |
1645 | video->attached_count = count; | |
4be44fcd | 1646 | out: |
02438d87 | 1647 | kfree(buffer.pointer); |
d550d98d | 1648 | return status; |
1da177e4 LT |
1649 | } |
1650 | ||
1651 | /* | |
1652 | * Arg: | |
1653 | * video : video bus device | |
98fb8fe1 | 1654 | * event : notify event |
1da177e4 LT |
1655 | * |
1656 | * Return: | |
1657 | * < 0 : error | |
1658 | * | |
1659 | * 1. Find out the current active output device. | |
98fb8fe1 | 1660 | * 2. Identify the next output device to switch to. |
1da177e4 | 1661 | * 3. call _DSS to do actual switch. |
4be44fcd | 1662 | */ |
1da177e4 | 1663 | |
4be44fcd | 1664 | static int acpi_video_switch_output(struct acpi_video_bus *video, int event) |
1da177e4 | 1665 | { |
ff102ea9 | 1666 | struct list_head *node; |
4be44fcd LB |
1667 | struct acpi_video_device *dev = NULL; |
1668 | struct acpi_video_device *dev_next = NULL; | |
1669 | struct acpi_video_device *dev_prev = NULL; | |
1da177e4 LT |
1670 | unsigned long state; |
1671 | int status = 0; | |
1672 | ||
bbac81f5 | 1673 | mutex_lock(&video->device_list_lock); |
1da177e4 | 1674 | |
ff102ea9 | 1675 | list_for_each(node, &video->video_device_list) { |
7334571f | 1676 | dev = container_of(node, struct acpi_video_device, entry); |
1da177e4 | 1677 | status = acpi_video_device_get_state(dev, &state); |
4be44fcd | 1678 | if (state & 0x2) { |
ff102ea9 DT |
1679 | dev_next = container_of(node->next, |
1680 | struct acpi_video_device, entry); | |
1681 | dev_prev = container_of(node->prev, | |
1682 | struct acpi_video_device, entry); | |
1da177e4 LT |
1683 | goto out; |
1684 | } | |
1685 | } | |
ff102ea9 | 1686 | |
1da177e4 LT |
1687 | dev_next = container_of(node->next, struct acpi_video_device, entry); |
1688 | dev_prev = container_of(node->prev, struct acpi_video_device, entry); | |
ff102ea9 DT |
1689 | |
1690 | out: | |
bbac81f5 | 1691 | mutex_unlock(&video->device_list_lock); |
ff102ea9 | 1692 | |
1da177e4 LT |
1693 | switch (event) { |
1694 | case ACPI_VIDEO_NOTIFY_CYCLE: | |
1695 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: | |
1696 | acpi_video_device_set_state(dev, 0); | |
1697 | acpi_video_device_set_state(dev_next, 0x80000001); | |
1698 | break; | |
1699 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: | |
1700 | acpi_video_device_set_state(dev, 0); | |
1701 | acpi_video_device_set_state(dev_prev, 0x80000001); | |
1702 | default: | |
1703 | break; | |
1704 | } | |
1705 | ||
d550d98d | 1706 | return status; |
1da177e4 LT |
1707 | } |
1708 | ||
4be44fcd LB |
1709 | static int |
1710 | acpi_video_get_next_level(struct acpi_video_device *device, | |
1711 | u32 level_current, u32 event) | |
1da177e4 | 1712 | { |
63f0edfc | 1713 | int min, max, min_above, max_below, i, l, delta = 255; |
f4715189 TT |
1714 | max = max_below = 0; |
1715 | min = min_above = 255; | |
63f0edfc AS |
1716 | /* Find closest level to level_current */ |
1717 | for (i = 0; i < device->brightness->count; i++) { | |
1718 | l = device->brightness->levels[i]; | |
1719 | if (abs(l - level_current) < abs(delta)) { | |
1720 | delta = l - level_current; | |
1721 | if (!delta) | |
1722 | break; | |
1723 | } | |
1724 | } | |
1725 | /* Ajust level_current to closest available level */ | |
1726 | level_current += delta; | |
f4715189 TT |
1727 | for (i = 0; i < device->brightness->count; i++) { |
1728 | l = device->brightness->levels[i]; | |
1729 | if (l < min) | |
1730 | min = l; | |
1731 | if (l > max) | |
1732 | max = l; | |
1733 | if (l < min_above && l > level_current) | |
1734 | min_above = l; | |
1735 | if (l > max_below && l < level_current) | |
1736 | max_below = l; | |
1737 | } | |
1738 | ||
1739 | switch (event) { | |
1740 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: | |
1741 | return (level_current < max) ? min_above : min; | |
1742 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: | |
1743 | return (level_current < max) ? min_above : max; | |
1744 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: | |
1745 | return (level_current > min) ? max_below : min; | |
1746 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: | |
1747 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: | |
1748 | return 0; | |
1749 | default: | |
1750 | return level_current; | |
1751 | } | |
1da177e4 LT |
1752 | } |
1753 | ||
1da177e4 | 1754 | static void |
4be44fcd | 1755 | acpi_video_switch_brightness(struct acpi_video_device *device, int event) |
1da177e4 LT |
1756 | { |
1757 | unsigned long level_current, level_next; | |
1758 | acpi_video_device_lcd_get_level_current(device, &level_current); | |
1759 | level_next = acpi_video_get_next_level(device, level_current, event); | |
1760 | acpi_video_device_lcd_set_level(device, level_next); | |
1761 | } | |
1762 | ||
1763 | static int | |
4be44fcd LB |
1764 | acpi_video_bus_get_devices(struct acpi_video_bus *video, |
1765 | struct acpi_device *device) | |
1da177e4 | 1766 | { |
4be44fcd | 1767 | int status = 0; |
ff102ea9 | 1768 | struct acpi_device *dev; |
1da177e4 LT |
1769 | |
1770 | acpi_video_device_enumerate(video); | |
1771 | ||
ff102ea9 | 1772 | list_for_each_entry(dev, &device->children, node) { |
1da177e4 LT |
1773 | |
1774 | status = acpi_video_bus_get_one_device(dev, video); | |
1775 | if (ACPI_FAILURE(status)) { | |
a6fc6720 | 1776 | ACPI_EXCEPTION((AE_INFO, status, "Cant attach device")); |
1da177e4 LT |
1777 | continue; |
1778 | } | |
1da177e4 | 1779 | } |
d550d98d | 1780 | return status; |
1da177e4 LT |
1781 | } |
1782 | ||
4be44fcd | 1783 | static int acpi_video_bus_put_one_device(struct acpi_video_device *device) |
1da177e4 | 1784 | { |
031ec77b | 1785 | acpi_status status; |
1da177e4 LT |
1786 | struct acpi_video_bus *video; |
1787 | ||
1da177e4 LT |
1788 | |
1789 | if (!device || !device->video) | |
d550d98d | 1790 | return -ENOENT; |
1da177e4 LT |
1791 | |
1792 | video = device->video; | |
1793 | ||
1da177e4 LT |
1794 | acpi_video_device_remove_fs(device->dev); |
1795 | ||
90130268 | 1796 | status = acpi_remove_notify_handler(device->dev->handle, |
4be44fcd LB |
1797 | ACPI_DEVICE_NOTIFY, |
1798 | acpi_video_device_notify); | |
599a52d1 | 1799 | backlight_device_unregister(device->backlight); |
702ed512 ZR |
1800 | if (device->cdev) { |
1801 | sysfs_remove_link(&device->dev->dev.kobj, | |
1802 | "thermal_cooling"); | |
1803 | sysfs_remove_link(&device->cdev->device.kobj, | |
1804 | "device"); | |
1805 | thermal_cooling_device_unregister(device->cdev); | |
1806 | device->cdev = NULL; | |
1807 | } | |
23b0f015 | 1808 | video_output_unregister(device->output_dev); |
ff102ea9 | 1809 | |
d550d98d | 1810 | return 0; |
1da177e4 LT |
1811 | } |
1812 | ||
4be44fcd | 1813 | static int acpi_video_bus_put_devices(struct acpi_video_bus *video) |
1da177e4 | 1814 | { |
4be44fcd | 1815 | int status; |
ff102ea9 | 1816 | struct acpi_video_device *dev, *next; |
1da177e4 | 1817 | |
bbac81f5 | 1818 | mutex_lock(&video->device_list_lock); |
1da177e4 | 1819 | |
ff102ea9 | 1820 | list_for_each_entry_safe(dev, next, &video->video_device_list, entry) { |
1da177e4 | 1821 | |
ff102ea9 | 1822 | status = acpi_video_bus_put_one_device(dev); |
4be44fcd LB |
1823 | if (ACPI_FAILURE(status)) |
1824 | printk(KERN_WARNING PREFIX | |
1825 | "hhuuhhuu bug in acpi video driver.\n"); | |
1da177e4 | 1826 | |
ff102ea9 DT |
1827 | if (dev->brightness) { |
1828 | kfree(dev->brightness->levels); | |
1829 | kfree(dev->brightness); | |
1830 | } | |
1831 | list_del(&dev->entry); | |
1832 | kfree(dev); | |
1da177e4 LT |
1833 | } |
1834 | ||
bbac81f5 | 1835 | mutex_unlock(&video->device_list_lock); |
ff102ea9 | 1836 | |
d550d98d | 1837 | return 0; |
1da177e4 LT |
1838 | } |
1839 | ||
1840 | /* acpi_video interface */ | |
1841 | ||
4be44fcd | 1842 | static int acpi_video_bus_start_devices(struct acpi_video_bus *video) |
1da177e4 | 1843 | { |
a21101c4 | 1844 | return acpi_video_bus_DOS(video, 0, 0); |
1da177e4 LT |
1845 | } |
1846 | ||
4be44fcd | 1847 | static int acpi_video_bus_stop_devices(struct acpi_video_bus *video) |
1da177e4 LT |
1848 | { |
1849 | return acpi_video_bus_DOS(video, 0, 1); | |
1850 | } | |
1851 | ||
4be44fcd | 1852 | static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 1853 | { |
50dd0969 | 1854 | struct acpi_video_bus *video = data; |
4be44fcd | 1855 | struct acpi_device *device = NULL; |
e9dab196 LY |
1856 | struct input_dev *input; |
1857 | int keycode; | |
1858 | ||
1da177e4 | 1859 | if (!video) |
d550d98d | 1860 | return; |
1da177e4 | 1861 | |
e6afa0de | 1862 | device = video->device; |
e9dab196 | 1863 | input = video->input; |
1da177e4 LT |
1864 | |
1865 | switch (event) { | |
98fb8fe1 | 1866 | case ACPI_VIDEO_NOTIFY_SWITCH: /* User requested a switch, |
1da177e4 | 1867 | * most likely via hotkey. */ |
14e04fb3 | 1868 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1869 | keycode = KEY_SWITCHVIDEOMODE; |
1da177e4 LT |
1870 | break; |
1871 | ||
98fb8fe1 | 1872 | case ACPI_VIDEO_NOTIFY_PROBE: /* User plugged in or removed a video |
1da177e4 LT |
1873 | * connector. */ |
1874 | acpi_video_device_enumerate(video); | |
1875 | acpi_video_device_rebind(video); | |
1876 | acpi_video_switch_output(video, event); | |
14e04fb3 | 1877 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1878 | keycode = KEY_SWITCHVIDEOMODE; |
1da177e4 LT |
1879 | break; |
1880 | ||
4be44fcd | 1881 | case ACPI_VIDEO_NOTIFY_CYCLE: /* Cycle Display output hotkey pressed. */ |
e9dab196 | 1882 | acpi_video_switch_output(video, event); |
25c87f7f | 1883 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1884 | keycode = KEY_SWITCHVIDEOMODE; |
1885 | break; | |
4be44fcd | 1886 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: /* Next Display output hotkey pressed. */ |
e9dab196 | 1887 | acpi_video_switch_output(video, event); |
25c87f7f | 1888 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1889 | keycode = KEY_VIDEO_NEXT; |
1890 | break; | |
4be44fcd | 1891 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: /* previous Display output hotkey pressed. */ |
1da177e4 | 1892 | acpi_video_switch_output(video, event); |
14e04fb3 | 1893 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1894 | keycode = KEY_VIDEO_PREV; |
1da177e4 LT |
1895 | break; |
1896 | ||
1897 | default: | |
e9dab196 | 1898 | keycode = KEY_UNKNOWN; |
1da177e4 | 1899 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
4be44fcd | 1900 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
1901 | break; |
1902 | } | |
1903 | ||
e9dab196 LY |
1904 | input_report_key(input, keycode, 1); |
1905 | input_sync(input); | |
1906 | input_report_key(input, keycode, 0); | |
1907 | input_sync(input); | |
1908 | ||
d550d98d | 1909 | return; |
1da177e4 LT |
1910 | } |
1911 | ||
4be44fcd | 1912 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 1913 | { |
50dd0969 | 1914 | struct acpi_video_device *video_device = data; |
4be44fcd | 1915 | struct acpi_device *device = NULL; |
e9dab196 LY |
1916 | struct acpi_video_bus *bus; |
1917 | struct input_dev *input; | |
1918 | int keycode; | |
1da177e4 | 1919 | |
1da177e4 | 1920 | if (!video_device) |
d550d98d | 1921 | return; |
1da177e4 | 1922 | |
e6afa0de | 1923 | device = video_device->dev; |
e9dab196 LY |
1924 | bus = video_device->video; |
1925 | input = bus->input; | |
1da177e4 LT |
1926 | |
1927 | switch (event) { | |
4be44fcd | 1928 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */ |
e9dab196 | 1929 | acpi_video_switch_brightness(video_device, event); |
14e04fb3 | 1930 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1931 | keycode = KEY_BRIGHTNESS_CYCLE; |
1932 | break; | |
4be44fcd | 1933 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: /* Increase brightness */ |
e9dab196 | 1934 | acpi_video_switch_brightness(video_device, event); |
25c87f7f | 1935 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1936 | keycode = KEY_BRIGHTNESSUP; |
1937 | break; | |
4be44fcd | 1938 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: /* Decrease brightness */ |
e9dab196 | 1939 | acpi_video_switch_brightness(video_device, event); |
25c87f7f | 1940 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1941 | keycode = KEY_BRIGHTNESSDOWN; |
1942 | break; | |
4be44fcd | 1943 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightnesss */ |
e9dab196 | 1944 | acpi_video_switch_brightness(video_device, event); |
25c87f7f | 1945 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1946 | keycode = KEY_BRIGHTNESS_ZERO; |
1947 | break; | |
4be44fcd LB |
1948 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: /* display device off */ |
1949 | acpi_video_switch_brightness(video_device, event); | |
14e04fb3 | 1950 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1951 | keycode = KEY_DISPLAY_OFF; |
1da177e4 LT |
1952 | break; |
1953 | default: | |
e9dab196 | 1954 | keycode = KEY_UNKNOWN; |
1da177e4 | 1955 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
4be44fcd | 1956 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
1957 | break; |
1958 | } | |
e9dab196 LY |
1959 | |
1960 | input_report_key(input, keycode, 1); | |
1961 | input_sync(input); | |
1962 | input_report_key(input, keycode, 0); | |
1963 | input_sync(input); | |
1964 | ||
d550d98d | 1965 | return; |
1da177e4 LT |
1966 | } |
1967 | ||
e6d9da1d | 1968 | static int instance; |
4be44fcd | 1969 | static int acpi_video_bus_add(struct acpi_device *device) |
1da177e4 | 1970 | { |
f51e8391 DT |
1971 | acpi_status status; |
1972 | struct acpi_video_bus *video; | |
e9dab196 | 1973 | struct input_dev *input; |
f51e8391 | 1974 | int error; |
1da177e4 | 1975 | |
36bcbec7 | 1976 | video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL); |
1da177e4 | 1977 | if (!video) |
d550d98d | 1978 | return -ENOMEM; |
1da177e4 | 1979 | |
e6d9da1d ZR |
1980 | /* a hack to fix the duplicate name "VID" problem on T61 */ |
1981 | if (!strcmp(device->pnp.bus_id, "VID")) { | |
1982 | if (instance) | |
1983 | device->pnp.bus_id[3] = '0' + instance; | |
1984 | instance ++; | |
1985 | } | |
1986 | ||
e6afa0de | 1987 | video->device = device; |
1da177e4 LT |
1988 | strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME); |
1989 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); | |
1990 | acpi_driver_data(device) = video; | |
1991 | ||
1992 | acpi_video_bus_find_cap(video); | |
f51e8391 DT |
1993 | error = acpi_video_bus_check(video); |
1994 | if (error) | |
1995 | goto err_free_video; | |
1da177e4 | 1996 | |
f51e8391 DT |
1997 | error = acpi_video_bus_add_fs(device); |
1998 | if (error) | |
1999 | goto err_free_video; | |
1da177e4 | 2000 | |
bbac81f5 | 2001 | mutex_init(&video->device_list_lock); |
1da177e4 LT |
2002 | INIT_LIST_HEAD(&video->video_device_list); |
2003 | ||
2004 | acpi_video_bus_get_devices(video, device); | |
2005 | acpi_video_bus_start_devices(video); | |
2006 | ||
90130268 | 2007 | status = acpi_install_notify_handler(device->handle, |
4be44fcd LB |
2008 | ACPI_DEVICE_NOTIFY, |
2009 | acpi_video_bus_notify, video); | |
1da177e4 LT |
2010 | if (ACPI_FAILURE(status)) { |
2011 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, | |
4be44fcd | 2012 | "Error installing notify handler\n")); |
f51e8391 DT |
2013 | error = -ENODEV; |
2014 | goto err_stop_video; | |
1da177e4 LT |
2015 | } |
2016 | ||
e9dab196 | 2017 | video->input = input = input_allocate_device(); |
f51e8391 DT |
2018 | if (!input) { |
2019 | error = -ENOMEM; | |
2020 | goto err_uninstall_notify; | |
2021 | } | |
e9dab196 LY |
2022 | |
2023 | snprintf(video->phys, sizeof(video->phys), | |
2024 | "%s/video/input0", acpi_device_hid(video->device)); | |
2025 | ||
2026 | input->name = acpi_device_name(video->device); | |
2027 | input->phys = video->phys; | |
2028 | input->id.bustype = BUS_HOST; | |
2029 | input->id.product = 0x06; | |
91c05c66 | 2030 | input->dev.parent = &device->dev; |
e9dab196 LY |
2031 | input->evbit[0] = BIT(EV_KEY); |
2032 | set_bit(KEY_SWITCHVIDEOMODE, input->keybit); | |
2033 | set_bit(KEY_VIDEO_NEXT, input->keybit); | |
2034 | set_bit(KEY_VIDEO_PREV, input->keybit); | |
2035 | set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit); | |
2036 | set_bit(KEY_BRIGHTNESSUP, input->keybit); | |
2037 | set_bit(KEY_BRIGHTNESSDOWN, input->keybit); | |
2038 | set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); | |
2039 | set_bit(KEY_DISPLAY_OFF, input->keybit); | |
2040 | set_bit(KEY_UNKNOWN, input->keybit); | |
e9dab196 | 2041 | |
f51e8391 DT |
2042 | error = input_register_device(input); |
2043 | if (error) | |
2044 | goto err_free_input_dev; | |
e9dab196 | 2045 | |
1da177e4 | 2046 | printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", |
4be44fcd LB |
2047 | ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device), |
2048 | video->flags.multihead ? "yes" : "no", | |
2049 | video->flags.rom ? "yes" : "no", | |
2050 | video->flags.post ? "yes" : "no"); | |
1da177e4 | 2051 | |
f51e8391 DT |
2052 | return 0; |
2053 | ||
2054 | err_free_input_dev: | |
2055 | input_free_device(input); | |
2056 | err_uninstall_notify: | |
2057 | acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, | |
2058 | acpi_video_bus_notify); | |
2059 | err_stop_video: | |
2060 | acpi_video_bus_stop_devices(video); | |
2061 | acpi_video_bus_put_devices(video); | |
2062 | kfree(video->attached_array); | |
2063 | acpi_video_bus_remove_fs(device); | |
2064 | err_free_video: | |
2065 | kfree(video); | |
2066 | acpi_driver_data(device) = NULL; | |
1da177e4 | 2067 | |
f51e8391 | 2068 | return error; |
1da177e4 LT |
2069 | } |
2070 | ||
4be44fcd | 2071 | static int acpi_video_bus_remove(struct acpi_device *device, int type) |
1da177e4 | 2072 | { |
4be44fcd LB |
2073 | acpi_status status = 0; |
2074 | struct acpi_video_bus *video = NULL; | |
1da177e4 | 2075 | |
1da177e4 LT |
2076 | |
2077 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 2078 | return -EINVAL; |
1da177e4 | 2079 | |
50dd0969 | 2080 | video = acpi_driver_data(device); |
1da177e4 LT |
2081 | |
2082 | acpi_video_bus_stop_devices(video); | |
2083 | ||
90130268 | 2084 | status = acpi_remove_notify_handler(video->device->handle, |
4be44fcd LB |
2085 | ACPI_DEVICE_NOTIFY, |
2086 | acpi_video_bus_notify); | |
1da177e4 LT |
2087 | |
2088 | acpi_video_bus_put_devices(video); | |
2089 | acpi_video_bus_remove_fs(device); | |
2090 | ||
e9dab196 | 2091 | input_unregister_device(video->input); |
6044ec88 | 2092 | kfree(video->attached_array); |
1da177e4 LT |
2093 | kfree(video); |
2094 | ||
d550d98d | 2095 | return 0; |
1da177e4 LT |
2096 | } |
2097 | ||
4be44fcd | 2098 | static int __init acpi_video_init(void) |
1da177e4 | 2099 | { |
4be44fcd | 2100 | int result = 0; |
1da177e4 | 2101 | |
1da177e4 LT |
2102 | |
2103 | /* | |
4be44fcd LB |
2104 | acpi_dbg_level = 0xFFFFFFFF; |
2105 | acpi_dbg_layer = 0x08000000; | |
2106 | */ | |
1da177e4 LT |
2107 | |
2108 | acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir); | |
2109 | if (!acpi_video_dir) | |
d550d98d | 2110 | return -ENODEV; |
1da177e4 LT |
2111 | acpi_video_dir->owner = THIS_MODULE; |
2112 | ||
2113 | result = acpi_bus_register_driver(&acpi_video_bus); | |
2114 | if (result < 0) { | |
2115 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); | |
d550d98d | 2116 | return -ENODEV; |
1da177e4 LT |
2117 | } |
2118 | ||
d550d98d | 2119 | return 0; |
1da177e4 LT |
2120 | } |
2121 | ||
4be44fcd | 2122 | static void __exit acpi_video_exit(void) |
1da177e4 | 2123 | { |
1da177e4 LT |
2124 | |
2125 | acpi_bus_unregister_driver(&acpi_video_bus); | |
2126 | ||
2127 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); | |
2128 | ||
d550d98d | 2129 | return; |
1da177e4 LT |
2130 | } |
2131 | ||
2132 | module_init(acpi_video_init); | |
2133 | module_exit(acpi_video_exit); |