Commit | Line | Data |
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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> | |
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 | |
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 | ||
8a681a4d ZR |
74 | static int brightness_switch_enabled = 1; |
75 | module_param(brightness_switch_enabled, bool, 0644); | |
76 | ||
4be44fcd LB |
77 | static int acpi_video_bus_add(struct acpi_device *device); |
78 | static int acpi_video_bus_remove(struct acpi_device *device, int type); | |
863c1490 | 79 | static int acpi_video_resume(struct acpi_device *device); |
1da177e4 | 80 | |
1ba90e3a TR |
81 | static const struct acpi_device_id video_device_ids[] = { |
82 | {ACPI_VIDEO_HID, 0}, | |
83 | {"", 0}, | |
84 | }; | |
85 | MODULE_DEVICE_TABLE(acpi, video_device_ids); | |
86 | ||
1da177e4 | 87 | static struct acpi_driver acpi_video_bus = { |
c2b6705b | 88 | .name = "video", |
1da177e4 | 89 | .class = ACPI_VIDEO_CLASS, |
1ba90e3a | 90 | .ids = video_device_ids, |
1da177e4 LT |
91 | .ops = { |
92 | .add = acpi_video_bus_add, | |
93 | .remove = acpi_video_bus_remove, | |
863c1490 | 94 | .resume = acpi_video_resume, |
4be44fcd | 95 | }, |
1da177e4 LT |
96 | }; |
97 | ||
98 | struct acpi_video_bus_flags { | |
4be44fcd LB |
99 | u8 multihead:1; /* can switch video heads */ |
100 | u8 rom:1; /* can retrieve a video rom */ | |
101 | u8 post:1; /* can configure the head to */ | |
102 | u8 reserved:5; | |
1da177e4 LT |
103 | }; |
104 | ||
105 | struct acpi_video_bus_cap { | |
4be44fcd LB |
106 | u8 _DOS:1; /*Enable/Disable output switching */ |
107 | u8 _DOD:1; /*Enumerate all devices attached to display adapter */ | |
108 | u8 _ROM:1; /*Get ROM Data */ | |
109 | u8 _GPD:1; /*Get POST Device */ | |
110 | u8 _SPD:1; /*Set POST Device */ | |
111 | u8 _VPO:1; /*Video POST Options */ | |
112 | u8 reserved:2; | |
1da177e4 LT |
113 | }; |
114 | ||
4be44fcd LB |
115 | struct acpi_video_device_attrib { |
116 | u32 display_index:4; /* A zero-based instance of the Display */ | |
98fb8fe1 | 117 | u32 display_port_attachment:4; /*This field differentiates the display type */ |
4be44fcd | 118 | u32 display_type:4; /*Describe the specific type in use */ |
98fb8fe1 | 119 | u32 vendor_specific:4; /*Chipset Vendor Specific */ |
4be44fcd LB |
120 | u32 bios_can_detect:1; /*BIOS can detect the device */ |
121 | u32 depend_on_vga:1; /*Non-VGA output device whose power is related to | |
122 | the VGA device. */ | |
123 | u32 pipe_id:3; /*For VGA multiple-head devices. */ | |
124 | u32 reserved:10; /*Must be 0 */ | |
125 | u32 device_id_scheme:1; /*Device ID Scheme */ | |
1da177e4 LT |
126 | }; |
127 | ||
128 | struct acpi_video_enumerated_device { | |
129 | union { | |
130 | u32 int_val; | |
4be44fcd | 131 | struct acpi_video_device_attrib attrib; |
1da177e4 LT |
132 | } value; |
133 | struct acpi_video_device *bind_info; | |
134 | }; | |
135 | ||
136 | struct acpi_video_bus { | |
e6afa0de | 137 | struct acpi_device *device; |
4be44fcd | 138 | u8 dos_setting; |
1da177e4 | 139 | struct acpi_video_enumerated_device *attached_array; |
4be44fcd LB |
140 | u8 attached_count; |
141 | struct acpi_video_bus_cap cap; | |
1da177e4 | 142 | struct acpi_video_bus_flags flags; |
4be44fcd | 143 | struct list_head video_device_list; |
bbac81f5 | 144 | struct mutex device_list_lock; /* protects video_device_list */ |
4be44fcd | 145 | struct proc_dir_entry *dir; |
e9dab196 LY |
146 | struct input_dev *input; |
147 | char phys[32]; /* for input device */ | |
1da177e4 LT |
148 | }; |
149 | ||
150 | struct acpi_video_device_flags { | |
4be44fcd LB |
151 | u8 crt:1; |
152 | u8 lcd:1; | |
153 | u8 tvout:1; | |
82cae999 | 154 | u8 dvi:1; |
4be44fcd LB |
155 | u8 bios:1; |
156 | u8 unknown:1; | |
82cae999 | 157 | u8 reserved:2; |
1da177e4 LT |
158 | }; |
159 | ||
160 | struct acpi_video_device_cap { | |
4be44fcd LB |
161 | u8 _ADR:1; /*Return the unique ID */ |
162 | u8 _BCL:1; /*Query list of brightness control levels supported */ | |
163 | u8 _BCM:1; /*Set the brightness level */ | |
2f3d000a | 164 | u8 _BQC:1; /* Get current brightness level */ |
4be44fcd LB |
165 | u8 _DDC:1; /*Return the EDID for this device */ |
166 | u8 _DCS:1; /*Return status of output device */ | |
167 | u8 _DGS:1; /*Query graphics state */ | |
168 | u8 _DSS:1; /*Device state set */ | |
1da177e4 LT |
169 | }; |
170 | ||
171 | struct acpi_video_device_brightness { | |
4be44fcd LB |
172 | int curr; |
173 | int count; | |
174 | int *levels; | |
1da177e4 LT |
175 | }; |
176 | ||
177 | struct acpi_video_device { | |
4be44fcd LB |
178 | unsigned long device_id; |
179 | struct acpi_video_device_flags flags; | |
180 | struct acpi_video_device_cap cap; | |
181 | struct list_head entry; | |
182 | struct acpi_video_bus *video; | |
183 | struct acpi_device *dev; | |
1da177e4 | 184 | struct acpi_video_device_brightness *brightness; |
2f3d000a | 185 | struct backlight_device *backlight; |
702ed512 | 186 | struct thermal_cooling_device *cdev; |
23b0f015 | 187 | struct output_device *output_dev; |
1da177e4 LT |
188 | }; |
189 | ||
1da177e4 LT |
190 | /* bus */ |
191 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file); | |
192 | static struct file_operations acpi_video_bus_info_fops = { | |
4be44fcd LB |
193 | .open = acpi_video_bus_info_open_fs, |
194 | .read = seq_read, | |
195 | .llseek = seq_lseek, | |
196 | .release = single_release, | |
1da177e4 LT |
197 | }; |
198 | ||
199 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file); | |
200 | static struct file_operations acpi_video_bus_ROM_fops = { | |
4be44fcd LB |
201 | .open = acpi_video_bus_ROM_open_fs, |
202 | .read = seq_read, | |
203 | .llseek = seq_lseek, | |
204 | .release = single_release, | |
1da177e4 LT |
205 | }; |
206 | ||
4be44fcd LB |
207 | static int acpi_video_bus_POST_info_open_fs(struct inode *inode, |
208 | struct file *file); | |
1da177e4 | 209 | static struct file_operations acpi_video_bus_POST_info_fops = { |
4be44fcd LB |
210 | .open = acpi_video_bus_POST_info_open_fs, |
211 | .read = seq_read, | |
212 | .llseek = seq_lseek, | |
213 | .release = single_release, | |
1da177e4 LT |
214 | }; |
215 | ||
216 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file); | |
217 | static struct file_operations acpi_video_bus_POST_fops = { | |
4be44fcd LB |
218 | .open = acpi_video_bus_POST_open_fs, |
219 | .read = seq_read, | |
220 | .llseek = seq_lseek, | |
221 | .release = single_release, | |
1da177e4 LT |
222 | }; |
223 | ||
1da177e4 LT |
224 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file); |
225 | static struct file_operations acpi_video_bus_DOS_fops = { | |
4be44fcd LB |
226 | .open = acpi_video_bus_DOS_open_fs, |
227 | .read = seq_read, | |
228 | .llseek = seq_lseek, | |
229 | .release = single_release, | |
1da177e4 LT |
230 | }; |
231 | ||
232 | /* device */ | |
4be44fcd LB |
233 | static int acpi_video_device_info_open_fs(struct inode *inode, |
234 | struct file *file); | |
1da177e4 | 235 | static struct file_operations acpi_video_device_info_fops = { |
4be44fcd LB |
236 | .open = acpi_video_device_info_open_fs, |
237 | .read = seq_read, | |
238 | .llseek = seq_lseek, | |
239 | .release = single_release, | |
1da177e4 LT |
240 | }; |
241 | ||
4be44fcd LB |
242 | static int acpi_video_device_state_open_fs(struct inode *inode, |
243 | struct file *file); | |
1da177e4 | 244 | static struct file_operations acpi_video_device_state_fops = { |
4be44fcd LB |
245 | .open = acpi_video_device_state_open_fs, |
246 | .read = seq_read, | |
247 | .llseek = seq_lseek, | |
248 | .release = single_release, | |
1da177e4 LT |
249 | }; |
250 | ||
4be44fcd LB |
251 | static int acpi_video_device_brightness_open_fs(struct inode *inode, |
252 | struct file *file); | |
1da177e4 | 253 | static struct file_operations acpi_video_device_brightness_fops = { |
4be44fcd LB |
254 | .open = acpi_video_device_brightness_open_fs, |
255 | .read = seq_read, | |
256 | .llseek = seq_lseek, | |
257 | .release = single_release, | |
1da177e4 LT |
258 | }; |
259 | ||
4be44fcd LB |
260 | static int acpi_video_device_EDID_open_fs(struct inode *inode, |
261 | struct file *file); | |
1da177e4 | 262 | static struct file_operations acpi_video_device_EDID_fops = { |
4be44fcd LB |
263 | .open = acpi_video_device_EDID_open_fs, |
264 | .read = seq_read, | |
265 | .llseek = seq_lseek, | |
266 | .release = single_release, | |
1da177e4 LT |
267 | }; |
268 | ||
4be44fcd | 269 | static char device_decode[][30] = { |
1da177e4 LT |
270 | "motherboard VGA device", |
271 | "PCI VGA device", | |
272 | "AGP VGA device", | |
273 | "UNKNOWN", | |
274 | }; | |
275 | ||
4be44fcd LB |
276 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data); |
277 | static void acpi_video_device_rebind(struct acpi_video_bus *video); | |
278 | static void acpi_video_device_bind(struct acpi_video_bus *video, | |
279 | struct acpi_video_device *device); | |
1da177e4 | 280 | static int acpi_video_device_enumerate(struct acpi_video_bus *video); |
2f3d000a YL |
281 | static int acpi_video_device_lcd_set_level(struct acpi_video_device *device, |
282 | int level); | |
283 | static int acpi_video_device_lcd_get_level_current( | |
284 | struct acpi_video_device *device, | |
285 | unsigned long *level); | |
4be44fcd LB |
286 | static int acpi_video_get_next_level(struct acpi_video_device *device, |
287 | u32 level_current, u32 event); | |
288 | static void acpi_video_switch_brightness(struct acpi_video_device *device, | |
289 | int event); | |
23b0f015 LY |
290 | static int acpi_video_device_get_state(struct acpi_video_device *device, |
291 | unsigned long *state); | |
292 | static int acpi_video_output_get(struct output_device *od); | |
293 | static int acpi_video_device_set_state(struct acpi_video_device *device, int state); | |
1da177e4 | 294 | |
2f3d000a YL |
295 | /*backlight device sysfs support*/ |
296 | static int acpi_video_get_brightness(struct backlight_device *bd) | |
297 | { | |
298 | unsigned long cur_level; | |
38531e6f | 299 | int i; |
2f3d000a | 300 | struct acpi_video_device *vd = |
655bfd7a | 301 | (struct acpi_video_device *)bl_get_data(bd); |
2f3d000a | 302 | acpi_video_device_lcd_get_level_current(vd, &cur_level); |
38531e6f MG |
303 | for (i = 2; i < vd->brightness->count; i++) { |
304 | if (vd->brightness->levels[i] == cur_level) | |
305 | /* The first two entries are special - see page 575 | |
306 | of the ACPI spec 3.0 */ | |
307 | return i-2; | |
308 | } | |
309 | return 0; | |
2f3d000a YL |
310 | } |
311 | ||
312 | static int acpi_video_set_brightness(struct backlight_device *bd) | |
313 | { | |
38531e6f | 314 | int request_level = bd->props.brightness+2; |
2f3d000a | 315 | struct acpi_video_device *vd = |
655bfd7a | 316 | (struct acpi_video_device *)bl_get_data(bd); |
38531e6f MG |
317 | acpi_video_device_lcd_set_level(vd, |
318 | vd->brightness->levels[request_level]); | |
2f3d000a YL |
319 | return 0; |
320 | } | |
321 | ||
599a52d1 RP |
322 | static struct backlight_ops acpi_backlight_ops = { |
323 | .get_brightness = acpi_video_get_brightness, | |
324 | .update_status = acpi_video_set_brightness, | |
325 | }; | |
326 | ||
23b0f015 LY |
327 | /*video output device sysfs support*/ |
328 | static int acpi_video_output_get(struct output_device *od) | |
329 | { | |
330 | unsigned long state; | |
331 | struct acpi_video_device *vd = | |
60043428 | 332 | (struct acpi_video_device *)dev_get_drvdata(&od->dev); |
23b0f015 LY |
333 | acpi_video_device_get_state(vd, &state); |
334 | return (int)state; | |
335 | } | |
336 | ||
337 | static int acpi_video_output_set(struct output_device *od) | |
338 | { | |
339 | unsigned long state = od->request_state; | |
340 | struct acpi_video_device *vd= | |
60043428 | 341 | (struct acpi_video_device *)dev_get_drvdata(&od->dev); |
23b0f015 LY |
342 | return acpi_video_device_set_state(vd, state); |
343 | } | |
344 | ||
345 | static struct output_properties acpi_output_properties = { | |
346 | .set_state = acpi_video_output_set, | |
347 | .get_status = acpi_video_output_get, | |
348 | }; | |
702ed512 ZR |
349 | |
350 | ||
351 | /* thermal cooling device callbacks */ | |
352 | static int video_get_max_state(struct thermal_cooling_device *cdev, char *buf) | |
353 | { | |
354 | struct acpi_device *device = cdev->devdata; | |
355 | struct acpi_video_device *video = acpi_driver_data(device); | |
356 | ||
357 | return sprintf(buf, "%d\n", video->brightness->count - 3); | |
358 | } | |
359 | ||
360 | static int video_get_cur_state(struct thermal_cooling_device *cdev, char *buf) | |
361 | { | |
362 | struct acpi_device *device = cdev->devdata; | |
363 | struct acpi_video_device *video = acpi_driver_data(device); | |
364 | unsigned long level; | |
365 | int state; | |
366 | ||
367 | acpi_video_device_lcd_get_level_current(video, &level); | |
368 | for (state = 2; state < video->brightness->count; state++) | |
369 | if (level == video->brightness->levels[state]) | |
370 | return sprintf(buf, "%d\n", | |
371 | video->brightness->count - state - 1); | |
372 | ||
373 | return -EINVAL; | |
374 | } | |
375 | ||
376 | static int | |
377 | video_set_cur_state(struct thermal_cooling_device *cdev, unsigned int state) | |
378 | { | |
379 | struct acpi_device *device = cdev->devdata; | |
380 | struct acpi_video_device *video = acpi_driver_data(device); | |
381 | int level; | |
382 | ||
383 | if ( state >= video->brightness->count - 2) | |
384 | return -EINVAL; | |
385 | ||
386 | state = video->brightness->count - state; | |
387 | level = video->brightness->levels[state -1]; | |
388 | return acpi_video_device_lcd_set_level(video, level); | |
389 | } | |
390 | ||
391 | static struct thermal_cooling_device_ops video_cooling_ops = { | |
392 | .get_max_state = video_get_max_state, | |
393 | .get_cur_state = video_get_cur_state, | |
394 | .set_cur_state = video_set_cur_state, | |
395 | }; | |
396 | ||
1da177e4 LT |
397 | /* -------------------------------------------------------------------------- |
398 | Video Management | |
399 | -------------------------------------------------------------------------- */ | |
400 | ||
401 | /* device */ | |
402 | ||
403 | static int | |
4be44fcd | 404 | acpi_video_device_query(struct acpi_video_device *device, unsigned long *state) |
1da177e4 | 405 | { |
4be44fcd | 406 | int status; |
90130268 PM |
407 | |
408 | status = acpi_evaluate_integer(device->dev->handle, "_DGS", NULL, state); | |
1da177e4 | 409 | |
d550d98d | 410 | return status; |
1da177e4 LT |
411 | } |
412 | ||
413 | static int | |
4be44fcd LB |
414 | acpi_video_device_get_state(struct acpi_video_device *device, |
415 | unsigned long *state) | |
1da177e4 | 416 | { |
4be44fcd | 417 | int status; |
1da177e4 | 418 | |
90130268 | 419 | status = acpi_evaluate_integer(device->dev->handle, "_DCS", NULL, state); |
1da177e4 | 420 | |
d550d98d | 421 | return status; |
1da177e4 LT |
422 | } |
423 | ||
424 | static int | |
4be44fcd | 425 | acpi_video_device_set_state(struct acpi_video_device *device, int state) |
1da177e4 | 426 | { |
4be44fcd LB |
427 | int status; |
428 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
429 | struct acpi_object_list args = { 1, &arg0 }; | |
824b558b | 430 | unsigned long ret; |
1da177e4 | 431 | |
1da177e4 LT |
432 | |
433 | arg0.integer.value = state; | |
90130268 | 434 | status = acpi_evaluate_integer(device->dev->handle, "_DSS", &args, &ret); |
1da177e4 | 435 | |
d550d98d | 436 | return status; |
1da177e4 LT |
437 | } |
438 | ||
439 | static int | |
4be44fcd LB |
440 | acpi_video_device_lcd_query_levels(struct acpi_video_device *device, |
441 | union acpi_object **levels) | |
1da177e4 | 442 | { |
4be44fcd LB |
443 | int status; |
444 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
445 | union acpi_object *obj; | |
1da177e4 | 446 | |
1da177e4 LT |
447 | |
448 | *levels = NULL; | |
449 | ||
90130268 | 450 | status = acpi_evaluate_object(device->dev->handle, "_BCL", NULL, &buffer); |
1da177e4 | 451 | if (!ACPI_SUCCESS(status)) |
d550d98d | 452 | return status; |
4be44fcd | 453 | obj = (union acpi_object *)buffer.pointer; |
6665bda7 | 454 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { |
6468463a | 455 | printk(KERN_ERR PREFIX "Invalid _BCL data\n"); |
1da177e4 LT |
456 | status = -EFAULT; |
457 | goto err; | |
458 | } | |
459 | ||
460 | *levels = obj; | |
461 | ||
d550d98d | 462 | return 0; |
1da177e4 | 463 | |
4be44fcd | 464 | err: |
6044ec88 | 465 | kfree(buffer.pointer); |
1da177e4 | 466 | |
d550d98d | 467 | return status; |
1da177e4 LT |
468 | } |
469 | ||
470 | static int | |
4be44fcd | 471 | acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level) |
1da177e4 | 472 | { |
4500ca8e | 473 | int status = AE_OK; |
4be44fcd LB |
474 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; |
475 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 476 | |
1da177e4 LT |
477 | |
478 | arg0.integer.value = level; | |
1da177e4 | 479 | |
4500ca8e AS |
480 | if (device->cap._BCM) |
481 | status = acpi_evaluate_object(device->dev->handle, "_BCM", | |
482 | &args, NULL); | |
483 | device->brightness->curr = level; | |
d550d98d | 484 | return status; |
1da177e4 LT |
485 | } |
486 | ||
487 | static int | |
4be44fcd LB |
488 | acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, |
489 | unsigned long *level) | |
1da177e4 | 490 | { |
4500ca8e AS |
491 | if (device->cap._BQC) |
492 | return acpi_evaluate_integer(device->dev->handle, "_BQC", NULL, | |
493 | level); | |
494 | *level = device->brightness->curr; | |
495 | return AE_OK; | |
1da177e4 LT |
496 | } |
497 | ||
498 | static int | |
4be44fcd LB |
499 | acpi_video_device_EDID(struct acpi_video_device *device, |
500 | union acpi_object **edid, ssize_t length) | |
1da177e4 | 501 | { |
4be44fcd LB |
502 | int status; |
503 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
504 | union acpi_object *obj; | |
505 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
506 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 507 | |
1da177e4 LT |
508 | |
509 | *edid = NULL; | |
510 | ||
511 | if (!device) | |
d550d98d | 512 | return -ENODEV; |
1da177e4 LT |
513 | if (length == 128) |
514 | arg0.integer.value = 1; | |
515 | else if (length == 256) | |
516 | arg0.integer.value = 2; | |
517 | else | |
d550d98d | 518 | return -EINVAL; |
1da177e4 | 519 | |
90130268 | 520 | status = acpi_evaluate_object(device->dev->handle, "_DDC", &args, &buffer); |
1da177e4 | 521 | if (ACPI_FAILURE(status)) |
d550d98d | 522 | return -ENODEV; |
1da177e4 | 523 | |
50dd0969 | 524 | obj = buffer.pointer; |
1da177e4 LT |
525 | |
526 | if (obj && obj->type == ACPI_TYPE_BUFFER) | |
527 | *edid = obj; | |
528 | else { | |
6468463a | 529 | printk(KERN_ERR PREFIX "Invalid _DDC data\n"); |
1da177e4 LT |
530 | status = -EFAULT; |
531 | kfree(obj); | |
532 | } | |
533 | ||
d550d98d | 534 | return status; |
1da177e4 LT |
535 | } |
536 | ||
1da177e4 LT |
537 | /* bus */ |
538 | ||
539 | static int | |
4be44fcd | 540 | acpi_video_bus_set_POST(struct acpi_video_bus *video, unsigned long option) |
1da177e4 | 541 | { |
4be44fcd LB |
542 | int status; |
543 | unsigned long tmp; | |
544 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
545 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 546 | |
1da177e4 LT |
547 | |
548 | arg0.integer.value = option; | |
549 | ||
90130268 | 550 | status = acpi_evaluate_integer(video->device->handle, "_SPD", &args, &tmp); |
1da177e4 | 551 | if (ACPI_SUCCESS(status)) |
4be44fcd | 552 | status = tmp ? (-EINVAL) : (AE_OK); |
1da177e4 | 553 | |
d550d98d | 554 | return status; |
1da177e4 LT |
555 | } |
556 | ||
557 | static int | |
4be44fcd | 558 | acpi_video_bus_get_POST(struct acpi_video_bus *video, unsigned long *id) |
1da177e4 LT |
559 | { |
560 | int status; | |
561 | ||
90130268 | 562 | status = acpi_evaluate_integer(video->device->handle, "_GPD", NULL, id); |
1da177e4 | 563 | |
d550d98d | 564 | return status; |
1da177e4 LT |
565 | } |
566 | ||
567 | static int | |
4be44fcd LB |
568 | acpi_video_bus_POST_options(struct acpi_video_bus *video, |
569 | unsigned long *options) | |
1da177e4 | 570 | { |
4be44fcd | 571 | int status; |
1da177e4 | 572 | |
90130268 | 573 | status = acpi_evaluate_integer(video->device->handle, "_VPO", NULL, options); |
1da177e4 LT |
574 | *options &= 3; |
575 | ||
d550d98d | 576 | return status; |
1da177e4 LT |
577 | } |
578 | ||
579 | /* | |
580 | * Arg: | |
581 | * video : video bus device pointer | |
582 | * bios_flag : | |
583 | * 0. The system BIOS should NOT automatically switch(toggle) | |
584 | * the active display output. | |
585 | * 1. The system BIOS should automatically switch (toggle) the | |
98fb8fe1 | 586 | * active display output. No switch event. |
1da177e4 LT |
587 | * 2. The _DGS value should be locked. |
588 | * 3. The system BIOS should not automatically switch (toggle) the | |
589 | * active display output, but instead generate the display switch | |
590 | * event notify code. | |
591 | * lcd_flag : | |
592 | * 0. The system BIOS should automatically control the brightness level | |
98fb8fe1 | 593 | * of the LCD when the power changes from AC to DC |
1da177e4 | 594 | * 1. The system BIOS should NOT automatically control the brightness |
98fb8fe1 | 595 | * level of the LCD when the power changes from AC to DC. |
1da177e4 LT |
596 | * Return Value: |
597 | * -1 wrong arg. | |
598 | */ | |
599 | ||
600 | static int | |
4be44fcd | 601 | acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) |
1da177e4 | 602 | { |
4be44fcd LB |
603 | acpi_integer status = 0; |
604 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
605 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 606 | |
1da177e4 | 607 | |
4be44fcd | 608 | if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) { |
1da177e4 LT |
609 | status = -1; |
610 | goto Failed; | |
611 | } | |
612 | arg0.integer.value = (lcd_flag << 2) | bios_flag; | |
613 | video->dos_setting = arg0.integer.value; | |
90130268 | 614 | acpi_evaluate_object(video->device->handle, "_DOS", &args, NULL); |
1da177e4 | 615 | |
4be44fcd | 616 | Failed: |
d550d98d | 617 | return status; |
1da177e4 LT |
618 | } |
619 | ||
620 | /* | |
621 | * Arg: | |
622 | * device : video output device (LCD, CRT, ..) | |
623 | * | |
624 | * Return Value: | |
625 | * None | |
626 | * | |
98fb8fe1 | 627 | * Find out all required AML methods defined under the output |
1da177e4 LT |
628 | * device. |
629 | */ | |
630 | ||
4be44fcd | 631 | static void acpi_video_device_find_cap(struct acpi_video_device *device) |
1da177e4 | 632 | { |
1da177e4 LT |
633 | acpi_handle h_dummy1; |
634 | int i; | |
2f3d000a | 635 | u32 max_level = 0; |
1da177e4 LT |
636 | union acpi_object *obj = NULL; |
637 | struct acpi_video_device_brightness *br = NULL; | |
638 | ||
1da177e4 | 639 | |
98934def | 640 | memset(&device->cap, 0, sizeof(device->cap)); |
1da177e4 | 641 | |
90130268 | 642 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) { |
1da177e4 LT |
643 | device->cap._ADR = 1; |
644 | } | |
90130268 | 645 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCL", &h_dummy1))) { |
4be44fcd | 646 | device->cap._BCL = 1; |
1da177e4 | 647 | } |
90130268 | 648 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCM", &h_dummy1))) { |
4be44fcd | 649 | device->cap._BCM = 1; |
1da177e4 | 650 | } |
2f3d000a YL |
651 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle,"_BQC",&h_dummy1))) |
652 | device->cap._BQC = 1; | |
90130268 | 653 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) { |
4be44fcd | 654 | device->cap._DDC = 1; |
1da177e4 | 655 | } |
90130268 | 656 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DCS", &h_dummy1))) { |
1da177e4 LT |
657 | device->cap._DCS = 1; |
658 | } | |
90130268 | 659 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DGS", &h_dummy1))) { |
1da177e4 LT |
660 | device->cap._DGS = 1; |
661 | } | |
90130268 | 662 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DSS", &h_dummy1))) { |
1da177e4 LT |
663 | device->cap._DSS = 1; |
664 | } | |
665 | ||
f70ac0e9 DK |
666 | if (ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) { |
667 | ||
668 | if (obj->package.count >= 2) { | |
669 | int count = 0; | |
670 | union acpi_object *o; | |
671 | ||
672 | br = kzalloc(sizeof(*br), GFP_KERNEL); | |
673 | if (!br) { | |
674 | printk(KERN_ERR "can't allocate memory\n"); | |
1da177e4 | 675 | } else { |
f70ac0e9 DK |
676 | br->levels = kmalloc(obj->package.count * |
677 | sizeof *(br->levels), GFP_KERNEL); | |
678 | if (!br->levels) | |
679 | goto out; | |
680 | ||
681 | for (i = 0; i < obj->package.count; i++) { | |
682 | o = (union acpi_object *)&obj->package. | |
683 | elements[i]; | |
684 | if (o->type != ACPI_TYPE_INTEGER) { | |
685 | printk(KERN_ERR PREFIX "Invalid data\n"); | |
686 | continue; | |
687 | } | |
688 | br->levels[count] = (u32) o->integer.value; | |
689 | ||
690 | if (br->levels[count] > max_level) | |
691 | max_level = br->levels[count]; | |
692 | count++; | |
693 | } | |
694 | out: | |
695 | if (count < 2) { | |
696 | kfree(br->levels); | |
697 | kfree(br); | |
698 | } else { | |
699 | br->count = count; | |
700 | device->brightness = br; | |
701 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | |
702 | "found %d brightness levels\n", | |
703 | count)); | |
704 | } | |
1da177e4 LT |
705 | } |
706 | } | |
f70ac0e9 DK |
707 | |
708 | } else { | |
709 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available LCD brightness level\n")); | |
1da177e4 LT |
710 | } |
711 | ||
d1dd0c23 | 712 | kfree(obj); |
1da177e4 | 713 | |
797de7bd | 714 | if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){ |
702ed512 | 715 | int result; |
2f3d000a YL |
716 | static int count = 0; |
717 | char *name; | |
2f3d000a YL |
718 | name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); |
719 | if (!name) | |
720 | return; | |
721 | ||
2f3d000a | 722 | sprintf(name, "acpi_video%d", count++); |
2f3d000a | 723 | device->backlight = backlight_device_register(name, |
599a52d1 | 724 | NULL, device, &acpi_backlight_ops); |
38531e6f MG |
725 | device->backlight->props.max_brightness = device->brightness->count-3; |
726 | device->backlight->props.brightness = acpi_video_get_brightness(device->backlight); | |
599a52d1 | 727 | backlight_update_status(device->backlight); |
2f3d000a | 728 | kfree(name); |
702ed512 ZR |
729 | |
730 | device->cdev = thermal_cooling_device_register("LCD", | |
731 | device->dev, &video_cooling_ops); | |
43ff39f2 TS |
732 | if (IS_ERR(device->cdev)) |
733 | return; | |
734 | ||
48d3d826 IM |
735 | if (device->cdev) { |
736 | printk(KERN_INFO PREFIX | |
737 | "%s is registered as cooling_device%d\n", | |
738 | device->dev->dev.bus_id, device->cdev->id); | |
739 | result = sysfs_create_link(&device->dev->dev.kobj, | |
740 | &device->cdev->device.kobj, | |
741 | "thermal_cooling"); | |
742 | if (result) | |
743 | printk(KERN_ERR PREFIX "Create sysfs link\n"); | |
744 | result = sysfs_create_link(&device->cdev->device.kobj, | |
745 | &device->dev->dev.kobj, | |
746 | "device"); | |
747 | if (result) | |
748 | printk(KERN_ERR PREFIX "Create sysfs link\n"); | |
749 | } | |
2f3d000a | 750 | } |
23b0f015 LY |
751 | if (device->cap._DCS && device->cap._DSS){ |
752 | static int count = 0; | |
753 | char *name; | |
754 | name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); | |
755 | if (!name) | |
756 | return; | |
757 | sprintf(name, "acpi_video%d", count++); | |
758 | device->output_dev = video_output_register(name, | |
759 | NULL, device, &acpi_output_properties); | |
760 | kfree(name); | |
761 | } | |
d550d98d | 762 | return; |
1da177e4 LT |
763 | } |
764 | ||
765 | /* | |
766 | * Arg: | |
767 | * device : video output device (VGA) | |
768 | * | |
769 | * Return Value: | |
770 | * None | |
771 | * | |
98fb8fe1 | 772 | * Find out all required AML methods defined under the video bus device. |
1da177e4 LT |
773 | */ |
774 | ||
4be44fcd | 775 | static void acpi_video_bus_find_cap(struct acpi_video_bus *video) |
1da177e4 | 776 | { |
4be44fcd | 777 | acpi_handle h_dummy1; |
1da177e4 | 778 | |
98934def | 779 | memset(&video->cap, 0, sizeof(video->cap)); |
90130268 | 780 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) { |
1da177e4 LT |
781 | video->cap._DOS = 1; |
782 | } | |
90130268 | 783 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOD", &h_dummy1))) { |
1da177e4 LT |
784 | video->cap._DOD = 1; |
785 | } | |
90130268 | 786 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_ROM", &h_dummy1))) { |
1da177e4 LT |
787 | video->cap._ROM = 1; |
788 | } | |
90130268 | 789 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_GPD", &h_dummy1))) { |
1da177e4 LT |
790 | video->cap._GPD = 1; |
791 | } | |
90130268 | 792 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_SPD", &h_dummy1))) { |
1da177e4 LT |
793 | video->cap._SPD = 1; |
794 | } | |
90130268 | 795 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_VPO", &h_dummy1))) { |
1da177e4 LT |
796 | video->cap._VPO = 1; |
797 | } | |
798 | } | |
799 | ||
800 | /* | |
801 | * Check whether the video bus device has required AML method to | |
802 | * support the desired features | |
803 | */ | |
804 | ||
4be44fcd | 805 | static int acpi_video_bus_check(struct acpi_video_bus *video) |
1da177e4 | 806 | { |
4be44fcd | 807 | acpi_status status = -ENOENT; |
f0d6752c | 808 | |
1da177e4 LT |
809 | |
810 | if (!video) | |
d550d98d | 811 | return -EINVAL; |
1da177e4 LT |
812 | |
813 | /* Since there is no HID, CID and so on for VGA driver, we have | |
814 | * to check well known required nodes. | |
815 | */ | |
816 | ||
98fb8fe1 | 817 | /* Does this device support video switching? */ |
4be44fcd | 818 | if (video->cap._DOS) { |
1da177e4 LT |
819 | video->flags.multihead = 1; |
820 | status = 0; | |
821 | } | |
822 | ||
98fb8fe1 | 823 | /* Does this device support retrieving a video ROM? */ |
4be44fcd | 824 | if (video->cap._ROM) { |
1da177e4 LT |
825 | video->flags.rom = 1; |
826 | status = 0; | |
827 | } | |
828 | ||
98fb8fe1 | 829 | /* Does this device support configuring which video device to POST? */ |
4be44fcd | 830 | if (video->cap._GPD && video->cap._SPD && video->cap._VPO) { |
1da177e4 LT |
831 | video->flags.post = 1; |
832 | status = 0; | |
833 | } | |
834 | ||
d550d98d | 835 | return status; |
1da177e4 LT |
836 | } |
837 | ||
838 | /* -------------------------------------------------------------------------- | |
839 | FS Interface (/proc) | |
840 | -------------------------------------------------------------------------- */ | |
841 | ||
4be44fcd | 842 | static struct proc_dir_entry *acpi_video_dir; |
1da177e4 LT |
843 | |
844 | /* video devices */ | |
845 | ||
4be44fcd | 846 | static int acpi_video_device_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 847 | { |
50dd0969 | 848 | struct acpi_video_device *dev = seq->private; |
1da177e4 | 849 | |
1da177e4 LT |
850 | |
851 | if (!dev) | |
852 | goto end; | |
853 | ||
854 | seq_printf(seq, "device_id: 0x%04x\n", (u32) dev->device_id); | |
855 | seq_printf(seq, "type: "); | |
856 | if (dev->flags.crt) | |
857 | seq_printf(seq, "CRT\n"); | |
858 | else if (dev->flags.lcd) | |
859 | seq_printf(seq, "LCD\n"); | |
860 | else if (dev->flags.tvout) | |
861 | seq_printf(seq, "TVOUT\n"); | |
82cae999 RZ |
862 | else if (dev->flags.dvi) |
863 | seq_printf(seq, "DVI\n"); | |
1da177e4 LT |
864 | else |
865 | seq_printf(seq, "UNKNOWN\n"); | |
866 | ||
4be44fcd | 867 | seq_printf(seq, "known by bios: %s\n", dev->flags.bios ? "yes" : "no"); |
1da177e4 | 868 | |
4be44fcd | 869 | end: |
d550d98d | 870 | return 0; |
1da177e4 LT |
871 | } |
872 | ||
873 | static int | |
4be44fcd | 874 | acpi_video_device_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
875 | { |
876 | return single_open(file, acpi_video_device_info_seq_show, | |
877 | PDE(inode)->data); | |
878 | } | |
879 | ||
4be44fcd | 880 | static int acpi_video_device_state_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 881 | { |
4be44fcd | 882 | int status; |
50dd0969 | 883 | struct acpi_video_device *dev = seq->private; |
4be44fcd | 884 | unsigned long state; |
1da177e4 | 885 | |
1da177e4 LT |
886 | |
887 | if (!dev) | |
888 | goto end; | |
889 | ||
890 | status = acpi_video_device_get_state(dev, &state); | |
891 | seq_printf(seq, "state: "); | |
892 | if (ACPI_SUCCESS(status)) | |
893 | seq_printf(seq, "0x%02lx\n", state); | |
894 | else | |
895 | seq_printf(seq, "<not supported>\n"); | |
896 | ||
897 | status = acpi_video_device_query(dev, &state); | |
898 | seq_printf(seq, "query: "); | |
899 | if (ACPI_SUCCESS(status)) | |
900 | seq_printf(seq, "0x%02lx\n", state); | |
901 | else | |
902 | seq_printf(seq, "<not supported>\n"); | |
903 | ||
4be44fcd | 904 | end: |
d550d98d | 905 | return 0; |
1da177e4 LT |
906 | } |
907 | ||
908 | static int | |
4be44fcd | 909 | acpi_video_device_state_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
910 | { |
911 | return single_open(file, acpi_video_device_state_seq_show, | |
912 | PDE(inode)->data); | |
913 | } | |
914 | ||
915 | static ssize_t | |
4be44fcd LB |
916 | acpi_video_device_write_state(struct file *file, |
917 | const char __user * buffer, | |
918 | size_t count, loff_t * data) | |
1da177e4 | 919 | { |
4be44fcd | 920 | int status; |
50dd0969 JE |
921 | struct seq_file *m = file->private_data; |
922 | struct acpi_video_device *dev = m->private; | |
4be44fcd LB |
923 | char str[12] = { 0 }; |
924 | u32 state = 0; | |
1da177e4 | 925 | |
1da177e4 LT |
926 | |
927 | if (!dev || count + 1 > sizeof str) | |
d550d98d | 928 | return -EINVAL; |
1da177e4 LT |
929 | |
930 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 931 | return -EFAULT; |
1da177e4 LT |
932 | |
933 | str[count] = 0; | |
934 | state = simple_strtoul(str, NULL, 0); | |
4be44fcd | 935 | state &= ((1ul << 31) | (1ul << 30) | (1ul << 0)); |
1da177e4 LT |
936 | |
937 | status = acpi_video_device_set_state(dev, state); | |
938 | ||
939 | if (status) | |
d550d98d | 940 | return -EFAULT; |
1da177e4 | 941 | |
d550d98d | 942 | return count; |
1da177e4 LT |
943 | } |
944 | ||
945 | static int | |
4be44fcd | 946 | acpi_video_device_brightness_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 947 | { |
50dd0969 | 948 | struct acpi_video_device *dev = seq->private; |
4be44fcd | 949 | int i; |
1da177e4 | 950 | |
1da177e4 LT |
951 | |
952 | if (!dev || !dev->brightness) { | |
953 | seq_printf(seq, "<not supported>\n"); | |
d550d98d | 954 | return 0; |
1da177e4 LT |
955 | } |
956 | ||
957 | seq_printf(seq, "levels: "); | |
958 | for (i = 0; i < dev->brightness->count; i++) | |
959 | seq_printf(seq, " %d", dev->brightness->levels[i]); | |
960 | seq_printf(seq, "\ncurrent: %d\n", dev->brightness->curr); | |
961 | ||
d550d98d | 962 | return 0; |
1da177e4 LT |
963 | } |
964 | ||
965 | static int | |
4be44fcd | 966 | acpi_video_device_brightness_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
967 | { |
968 | return single_open(file, acpi_video_device_brightness_seq_show, | |
969 | PDE(inode)->data); | |
970 | } | |
971 | ||
972 | static ssize_t | |
4be44fcd LB |
973 | acpi_video_device_write_brightness(struct file *file, |
974 | const char __user * buffer, | |
975 | size_t count, loff_t * data) | |
1da177e4 | 976 | { |
50dd0969 JE |
977 | struct seq_file *m = file->private_data; |
978 | struct acpi_video_device *dev = m->private; | |
c88c5786 | 979 | char str[5] = { 0 }; |
4be44fcd LB |
980 | unsigned int level = 0; |
981 | int i; | |
1da177e4 | 982 | |
1da177e4 | 983 | |
59d399d3 | 984 | if (!dev || !dev->brightness || count + 1 > sizeof str) |
d550d98d | 985 | return -EINVAL; |
1da177e4 LT |
986 | |
987 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 988 | return -EFAULT; |
1da177e4 LT |
989 | |
990 | str[count] = 0; | |
991 | level = simple_strtoul(str, NULL, 0); | |
4be44fcd | 992 | |
1da177e4 | 993 | if (level > 100) |
d550d98d | 994 | return -EFAULT; |
1da177e4 | 995 | |
98fb8fe1 | 996 | /* validate through the list of available levels */ |
1da177e4 LT |
997 | for (i = 0; i < dev->brightness->count; i++) |
998 | if (level == dev->brightness->levels[i]) { | |
4be44fcd LB |
999 | if (ACPI_SUCCESS |
1000 | (acpi_video_device_lcd_set_level(dev, level))) | |
1da177e4 LT |
1001 | dev->brightness->curr = level; |
1002 | break; | |
1003 | } | |
1004 | ||
d550d98d | 1005 | return count; |
1da177e4 LT |
1006 | } |
1007 | ||
4be44fcd | 1008 | static int acpi_video_device_EDID_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1009 | { |
50dd0969 | 1010 | struct acpi_video_device *dev = seq->private; |
4be44fcd LB |
1011 | int status; |
1012 | int i; | |
1013 | union acpi_object *edid = NULL; | |
1da177e4 | 1014 | |
1da177e4 LT |
1015 | |
1016 | if (!dev) | |
1017 | goto out; | |
1018 | ||
4be44fcd | 1019 | status = acpi_video_device_EDID(dev, &edid, 128); |
1da177e4 | 1020 | if (ACPI_FAILURE(status)) { |
4be44fcd | 1021 | status = acpi_video_device_EDID(dev, &edid, 256); |
1da177e4 LT |
1022 | } |
1023 | ||
1024 | if (ACPI_FAILURE(status)) { | |
1025 | goto out; | |
1026 | } | |
1027 | ||
1028 | if (edid && edid->type == ACPI_TYPE_BUFFER) { | |
1029 | for (i = 0; i < edid->buffer.length; i++) | |
1030 | seq_putc(seq, edid->buffer.pointer[i]); | |
1031 | } | |
1032 | ||
4be44fcd | 1033 | out: |
1da177e4 LT |
1034 | if (!edid) |
1035 | seq_printf(seq, "<not supported>\n"); | |
1036 | else | |
1037 | kfree(edid); | |
1038 | ||
d550d98d | 1039 | return 0; |
1da177e4 LT |
1040 | } |
1041 | ||
1042 | static int | |
4be44fcd | 1043 | acpi_video_device_EDID_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1044 | { |
1045 | return single_open(file, acpi_video_device_EDID_seq_show, | |
1046 | PDE(inode)->data); | |
1047 | } | |
1048 | ||
4be44fcd | 1049 | static int acpi_video_device_add_fs(struct acpi_device *device) |
1da177e4 | 1050 | { |
4be44fcd | 1051 | struct proc_dir_entry *entry = NULL; |
1da177e4 LT |
1052 | struct acpi_video_device *vid_dev; |
1053 | ||
1da177e4 LT |
1054 | |
1055 | if (!device) | |
d550d98d | 1056 | return -ENODEV; |
1da177e4 | 1057 | |
50dd0969 | 1058 | vid_dev = acpi_driver_data(device); |
1da177e4 | 1059 | if (!vid_dev) |
d550d98d | 1060 | return -ENODEV; |
1da177e4 LT |
1061 | |
1062 | if (!acpi_device_dir(device)) { | |
1063 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), | |
4be44fcd | 1064 | vid_dev->video->dir); |
1da177e4 | 1065 | if (!acpi_device_dir(device)) |
d550d98d | 1066 | return -ENODEV; |
1da177e4 LT |
1067 | acpi_device_dir(device)->owner = THIS_MODULE; |
1068 | } | |
1069 | ||
1070 | /* 'info' [R] */ | |
1071 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); | |
1072 | if (!entry) | |
d550d98d | 1073 | return -ENODEV; |
1da177e4 LT |
1074 | else { |
1075 | entry->proc_fops = &acpi_video_device_info_fops; | |
1076 | entry->data = acpi_driver_data(device); | |
1077 | entry->owner = THIS_MODULE; | |
1078 | } | |
1079 | ||
1080 | /* 'state' [R/W] */ | |
4be44fcd LB |
1081 | entry = |
1082 | create_proc_entry("state", S_IFREG | S_IRUGO | S_IWUSR, | |
1083 | acpi_device_dir(device)); | |
1da177e4 | 1084 | if (!entry) |
d550d98d | 1085 | return -ENODEV; |
1da177e4 | 1086 | else { |
d479e908 | 1087 | acpi_video_device_state_fops.write = acpi_video_device_write_state; |
1da177e4 | 1088 | entry->proc_fops = &acpi_video_device_state_fops; |
1da177e4 LT |
1089 | entry->data = acpi_driver_data(device); |
1090 | entry->owner = THIS_MODULE; | |
1091 | } | |
1092 | ||
1093 | /* 'brightness' [R/W] */ | |
4be44fcd LB |
1094 | entry = |
1095 | create_proc_entry("brightness", S_IFREG | S_IRUGO | S_IWUSR, | |
1096 | acpi_device_dir(device)); | |
1da177e4 | 1097 | if (!entry) |
d550d98d | 1098 | return -ENODEV; |
1da177e4 | 1099 | else { |
d479e908 | 1100 | acpi_video_device_brightness_fops.write = acpi_video_device_write_brightness; |
1da177e4 | 1101 | entry->proc_fops = &acpi_video_device_brightness_fops; |
1da177e4 LT |
1102 | entry->data = acpi_driver_data(device); |
1103 | entry->owner = THIS_MODULE; | |
1104 | } | |
1105 | ||
1106 | /* 'EDID' [R] */ | |
1107 | entry = create_proc_entry("EDID", S_IRUGO, acpi_device_dir(device)); | |
1108 | if (!entry) | |
d550d98d | 1109 | return -ENODEV; |
1da177e4 LT |
1110 | else { |
1111 | entry->proc_fops = &acpi_video_device_EDID_fops; | |
1112 | entry->data = acpi_driver_data(device); | |
1113 | entry->owner = THIS_MODULE; | |
1114 | } | |
1115 | ||
d550d98d | 1116 | return 0; |
1da177e4 LT |
1117 | } |
1118 | ||
4be44fcd | 1119 | static int acpi_video_device_remove_fs(struct acpi_device *device) |
1da177e4 LT |
1120 | { |
1121 | struct acpi_video_device *vid_dev; | |
1da177e4 | 1122 | |
50dd0969 | 1123 | vid_dev = acpi_driver_data(device); |
1da177e4 | 1124 | if (!vid_dev || !vid_dev->video || !vid_dev->video->dir) |
d550d98d | 1125 | return -ENODEV; |
1da177e4 LT |
1126 | |
1127 | if (acpi_device_dir(device)) { | |
1128 | remove_proc_entry("info", acpi_device_dir(device)); | |
1129 | remove_proc_entry("state", acpi_device_dir(device)); | |
1130 | remove_proc_entry("brightness", acpi_device_dir(device)); | |
1131 | remove_proc_entry("EDID", acpi_device_dir(device)); | |
4be44fcd | 1132 | remove_proc_entry(acpi_device_bid(device), vid_dev->video->dir); |
1da177e4 LT |
1133 | acpi_device_dir(device) = NULL; |
1134 | } | |
1135 | ||
d550d98d | 1136 | return 0; |
1da177e4 LT |
1137 | } |
1138 | ||
1da177e4 | 1139 | /* video bus */ |
4be44fcd | 1140 | static int acpi_video_bus_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1141 | { |
50dd0969 | 1142 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1143 | |
1da177e4 LT |
1144 | |
1145 | if (!video) | |
1146 | goto end; | |
1147 | ||
1148 | seq_printf(seq, "Switching heads: %s\n", | |
4be44fcd | 1149 | video->flags.multihead ? "yes" : "no"); |
1da177e4 | 1150 | seq_printf(seq, "Video ROM: %s\n", |
4be44fcd | 1151 | video->flags.rom ? "yes" : "no"); |
1da177e4 | 1152 | seq_printf(seq, "Device to be POSTed on boot: %s\n", |
4be44fcd | 1153 | video->flags.post ? "yes" : "no"); |
1da177e4 | 1154 | |
4be44fcd | 1155 | end: |
d550d98d | 1156 | return 0; |
1da177e4 LT |
1157 | } |
1158 | ||
4be44fcd | 1159 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1160 | { |
4be44fcd LB |
1161 | return single_open(file, acpi_video_bus_info_seq_show, |
1162 | PDE(inode)->data); | |
1da177e4 LT |
1163 | } |
1164 | ||
4be44fcd | 1165 | static int acpi_video_bus_ROM_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1166 | { |
50dd0969 | 1167 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1168 | |
1da177e4 LT |
1169 | |
1170 | if (!video) | |
1171 | goto end; | |
1172 | ||
96b2dd1f | 1173 | printk(KERN_INFO PREFIX "Please implement %s\n", __func__); |
1da177e4 LT |
1174 | seq_printf(seq, "<TODO>\n"); |
1175 | ||
4be44fcd | 1176 | end: |
d550d98d | 1177 | return 0; |
1da177e4 LT |
1178 | } |
1179 | ||
4be44fcd | 1180 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1181 | { |
1182 | return single_open(file, acpi_video_bus_ROM_seq_show, PDE(inode)->data); | |
1183 | } | |
1184 | ||
4be44fcd | 1185 | static int acpi_video_bus_POST_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1186 | { |
50dd0969 | 1187 | struct acpi_video_bus *video = seq->private; |
4be44fcd LB |
1188 | unsigned long options; |
1189 | int status; | |
1da177e4 | 1190 | |
1da177e4 LT |
1191 | |
1192 | if (!video) | |
1193 | goto end; | |
1194 | ||
1195 | status = acpi_video_bus_POST_options(video, &options); | |
1196 | if (ACPI_SUCCESS(status)) { | |
1197 | if (!(options & 1)) { | |
4be44fcd LB |
1198 | printk(KERN_WARNING PREFIX |
1199 | "The motherboard VGA device is not listed as a possible POST device.\n"); | |
1200 | printk(KERN_WARNING PREFIX | |
98fb8fe1 | 1201 | "This indicates a BIOS bug. Please contact the manufacturer.\n"); |
1da177e4 LT |
1202 | } |
1203 | printk("%lx\n", options); | |
98fb8fe1 | 1204 | seq_printf(seq, "can POST: <integrated video>"); |
1da177e4 LT |
1205 | if (options & 2) |
1206 | seq_printf(seq, " <PCI video>"); | |
1207 | if (options & 4) | |
1208 | seq_printf(seq, " <AGP video>"); | |
1209 | seq_putc(seq, '\n'); | |
1210 | } else | |
1211 | seq_printf(seq, "<not supported>\n"); | |
4be44fcd | 1212 | end: |
d550d98d | 1213 | return 0; |
1da177e4 LT |
1214 | } |
1215 | ||
1216 | static int | |
4be44fcd | 1217 | acpi_video_bus_POST_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1218 | { |
4be44fcd LB |
1219 | return single_open(file, acpi_video_bus_POST_info_seq_show, |
1220 | PDE(inode)->data); | |
1da177e4 LT |
1221 | } |
1222 | ||
4be44fcd | 1223 | static int acpi_video_bus_POST_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1224 | { |
50dd0969 | 1225 | struct acpi_video_bus *video = seq->private; |
4be44fcd LB |
1226 | int status; |
1227 | unsigned long id; | |
1da177e4 | 1228 | |
1da177e4 LT |
1229 | |
1230 | if (!video) | |
1231 | goto end; | |
1232 | ||
4be44fcd | 1233 | status = acpi_video_bus_get_POST(video, &id); |
1da177e4 LT |
1234 | if (!ACPI_SUCCESS(status)) { |
1235 | seq_printf(seq, "<not supported>\n"); | |
1236 | goto end; | |
1237 | } | |
98fb8fe1 | 1238 | seq_printf(seq, "device POSTed is <%s>\n", device_decode[id & 3]); |
1da177e4 | 1239 | |
4be44fcd | 1240 | end: |
d550d98d | 1241 | return 0; |
1da177e4 LT |
1242 | } |
1243 | ||
4be44fcd | 1244 | static int acpi_video_bus_DOS_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1245 | { |
50dd0969 | 1246 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1247 | |
1da177e4 | 1248 | |
4be44fcd | 1249 | seq_printf(seq, "DOS setting: <%d>\n", video->dos_setting); |
1da177e4 | 1250 | |
d550d98d | 1251 | return 0; |
1da177e4 LT |
1252 | } |
1253 | ||
4be44fcd | 1254 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1255 | { |
4be44fcd LB |
1256 | return single_open(file, acpi_video_bus_POST_seq_show, |
1257 | PDE(inode)->data); | |
1da177e4 LT |
1258 | } |
1259 | ||
4be44fcd | 1260 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1261 | { |
1262 | return single_open(file, acpi_video_bus_DOS_seq_show, PDE(inode)->data); | |
1263 | } | |
1264 | ||
1265 | static ssize_t | |
4be44fcd LB |
1266 | acpi_video_bus_write_POST(struct file *file, |
1267 | const char __user * buffer, | |
1268 | size_t count, loff_t * data) | |
1da177e4 | 1269 | { |
4be44fcd | 1270 | int status; |
50dd0969 JE |
1271 | struct seq_file *m = file->private_data; |
1272 | struct acpi_video_bus *video = m->private; | |
4be44fcd LB |
1273 | char str[12] = { 0 }; |
1274 | unsigned long opt, options; | |
1da177e4 | 1275 | |
1da177e4 | 1276 | |
1da177e4 | 1277 | if (!video || count + 1 > sizeof str) |
d550d98d | 1278 | return -EINVAL; |
1da177e4 LT |
1279 | |
1280 | status = acpi_video_bus_POST_options(video, &options); | |
1281 | if (!ACPI_SUCCESS(status)) | |
d550d98d | 1282 | return -EINVAL; |
1da177e4 LT |
1283 | |
1284 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 1285 | return -EFAULT; |
1da177e4 LT |
1286 | |
1287 | str[count] = 0; | |
1288 | opt = strtoul(str, NULL, 0); | |
1289 | if (opt > 3) | |
d550d98d | 1290 | return -EFAULT; |
1da177e4 | 1291 | |
98fb8fe1 | 1292 | /* just in case an OEM 'forgot' the motherboard... */ |
1da177e4 LT |
1293 | options |= 1; |
1294 | ||
1295 | if (options & (1ul << opt)) { | |
4be44fcd | 1296 | status = acpi_video_bus_set_POST(video, opt); |
1da177e4 | 1297 | if (!ACPI_SUCCESS(status)) |
d550d98d | 1298 | return -EFAULT; |
1da177e4 LT |
1299 | |
1300 | } | |
1301 | ||
d550d98d | 1302 | return count; |
1da177e4 LT |
1303 | } |
1304 | ||
1305 | static ssize_t | |
4be44fcd LB |
1306 | acpi_video_bus_write_DOS(struct file *file, |
1307 | const char __user * buffer, | |
1308 | size_t count, loff_t * data) | |
1da177e4 | 1309 | { |
4be44fcd | 1310 | int status; |
50dd0969 JE |
1311 | struct seq_file *m = file->private_data; |
1312 | struct acpi_video_bus *video = m->private; | |
4be44fcd LB |
1313 | char str[12] = { 0 }; |
1314 | unsigned long opt; | |
1da177e4 | 1315 | |
1da177e4 | 1316 | |
1da177e4 | 1317 | if (!video || count + 1 > sizeof str) |
d550d98d | 1318 | return -EINVAL; |
1da177e4 LT |
1319 | |
1320 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 1321 | return -EFAULT; |
1da177e4 LT |
1322 | |
1323 | str[count] = 0; | |
1324 | opt = strtoul(str, NULL, 0); | |
1325 | if (opt > 7) | |
d550d98d | 1326 | return -EFAULT; |
1da177e4 | 1327 | |
4be44fcd | 1328 | status = acpi_video_bus_DOS(video, opt & 0x3, (opt & 0x4) >> 2); |
1da177e4 LT |
1329 | |
1330 | if (!ACPI_SUCCESS(status)) | |
d550d98d | 1331 | return -EFAULT; |
1da177e4 | 1332 | |
d550d98d | 1333 | return count; |
1da177e4 LT |
1334 | } |
1335 | ||
4be44fcd | 1336 | static int acpi_video_bus_add_fs(struct acpi_device *device) |
1da177e4 | 1337 | { |
4be44fcd LB |
1338 | struct proc_dir_entry *entry = NULL; |
1339 | struct acpi_video_bus *video; | |
1da177e4 | 1340 | |
1da177e4 | 1341 | |
50dd0969 | 1342 | video = acpi_driver_data(device); |
1da177e4 LT |
1343 | |
1344 | if (!acpi_device_dir(device)) { | |
1345 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), | |
4be44fcd | 1346 | acpi_video_dir); |
1da177e4 | 1347 | if (!acpi_device_dir(device)) |
d550d98d | 1348 | return -ENODEV; |
1da177e4 LT |
1349 | video->dir = acpi_device_dir(device); |
1350 | acpi_device_dir(device)->owner = THIS_MODULE; | |
1351 | } | |
1352 | ||
1353 | /* 'info' [R] */ | |
1354 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); | |
1355 | if (!entry) | |
d550d98d | 1356 | return -ENODEV; |
1da177e4 LT |
1357 | else { |
1358 | entry->proc_fops = &acpi_video_bus_info_fops; | |
1359 | entry->data = acpi_driver_data(device); | |
1360 | entry->owner = THIS_MODULE; | |
1361 | } | |
1362 | ||
1363 | /* 'ROM' [R] */ | |
1364 | entry = create_proc_entry("ROM", S_IRUGO, acpi_device_dir(device)); | |
1365 | if (!entry) | |
d550d98d | 1366 | return -ENODEV; |
1da177e4 LT |
1367 | else { |
1368 | entry->proc_fops = &acpi_video_bus_ROM_fops; | |
1369 | entry->data = acpi_driver_data(device); | |
1370 | entry->owner = THIS_MODULE; | |
1371 | } | |
1372 | ||
1373 | /* 'POST_info' [R] */ | |
4be44fcd LB |
1374 | entry = |
1375 | create_proc_entry("POST_info", S_IRUGO, acpi_device_dir(device)); | |
1da177e4 | 1376 | if (!entry) |
d550d98d | 1377 | return -ENODEV; |
1da177e4 LT |
1378 | else { |
1379 | entry->proc_fops = &acpi_video_bus_POST_info_fops; | |
1380 | entry->data = acpi_driver_data(device); | |
1381 | entry->owner = THIS_MODULE; | |
1382 | } | |
1383 | ||
1384 | /* 'POST' [R/W] */ | |
4be44fcd LB |
1385 | entry = |
1386 | create_proc_entry("POST", S_IFREG | S_IRUGO | S_IRUSR, | |
1387 | acpi_device_dir(device)); | |
1da177e4 | 1388 | if (!entry) |
d550d98d | 1389 | return -ENODEV; |
1da177e4 | 1390 | else { |
d479e908 | 1391 | acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST; |
1da177e4 | 1392 | entry->proc_fops = &acpi_video_bus_POST_fops; |
1da177e4 LT |
1393 | entry->data = acpi_driver_data(device); |
1394 | entry->owner = THIS_MODULE; | |
1395 | } | |
1396 | ||
1397 | /* 'DOS' [R/W] */ | |
4be44fcd LB |
1398 | entry = |
1399 | create_proc_entry("DOS", S_IFREG | S_IRUGO | S_IRUSR, | |
1400 | acpi_device_dir(device)); | |
1da177e4 | 1401 | if (!entry) |
d550d98d | 1402 | return -ENODEV; |
1da177e4 | 1403 | else { |
d479e908 | 1404 | acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS; |
1da177e4 | 1405 | entry->proc_fops = &acpi_video_bus_DOS_fops; |
1da177e4 LT |
1406 | entry->data = acpi_driver_data(device); |
1407 | entry->owner = THIS_MODULE; | |
1408 | } | |
1409 | ||
d550d98d | 1410 | return 0; |
1da177e4 LT |
1411 | } |
1412 | ||
4be44fcd | 1413 | static int acpi_video_bus_remove_fs(struct acpi_device *device) |
1da177e4 | 1414 | { |
4be44fcd | 1415 | struct acpi_video_bus *video; |
1da177e4 | 1416 | |
1da177e4 | 1417 | |
50dd0969 | 1418 | video = acpi_driver_data(device); |
1da177e4 LT |
1419 | |
1420 | if (acpi_device_dir(device)) { | |
1421 | remove_proc_entry("info", acpi_device_dir(device)); | |
1422 | remove_proc_entry("ROM", acpi_device_dir(device)); | |
1423 | remove_proc_entry("POST_info", acpi_device_dir(device)); | |
1424 | remove_proc_entry("POST", acpi_device_dir(device)); | |
1425 | remove_proc_entry("DOS", acpi_device_dir(device)); | |
4be44fcd | 1426 | remove_proc_entry(acpi_device_bid(device), acpi_video_dir); |
1da177e4 LT |
1427 | acpi_device_dir(device) = NULL; |
1428 | } | |
1429 | ||
d550d98d | 1430 | return 0; |
1da177e4 LT |
1431 | } |
1432 | ||
1433 | /* -------------------------------------------------------------------------- | |
1434 | Driver Interface | |
1435 | -------------------------------------------------------------------------- */ | |
1436 | ||
1437 | /* device interface */ | |
82cae999 RZ |
1438 | static struct acpi_video_device_attrib* |
1439 | acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id) | |
1440 | { | |
78eed028 DT |
1441 | struct acpi_video_enumerated_device *ids; |
1442 | int i; | |
1443 | ||
1444 | for (i = 0; i < video->attached_count; i++) { | |
1445 | ids = &video->attached_array[i]; | |
1446 | if ((ids->value.int_val & 0xffff) == device_id) | |
1447 | return &ids->value.attrib; | |
1448 | } | |
82cae999 | 1449 | |
82cae999 RZ |
1450 | return NULL; |
1451 | } | |
1da177e4 LT |
1452 | |
1453 | static int | |
4be44fcd LB |
1454 | acpi_video_bus_get_one_device(struct acpi_device *device, |
1455 | struct acpi_video_bus *video) | |
1da177e4 | 1456 | { |
4be44fcd | 1457 | unsigned long device_id; |
973bf491 | 1458 | int status; |
4be44fcd | 1459 | struct acpi_video_device *data; |
82cae999 | 1460 | struct acpi_video_device_attrib* attribute; |
1da177e4 LT |
1461 | |
1462 | if (!device || !video) | |
d550d98d | 1463 | return -EINVAL; |
1da177e4 | 1464 | |
4be44fcd LB |
1465 | status = |
1466 | acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id); | |
1da177e4 LT |
1467 | if (ACPI_SUCCESS(status)) { |
1468 | ||
36bcbec7 | 1469 | data = kzalloc(sizeof(struct acpi_video_device), GFP_KERNEL); |
1da177e4 | 1470 | if (!data) |
d550d98d | 1471 | return -ENOMEM; |
1da177e4 | 1472 | |
1da177e4 LT |
1473 | strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME); |
1474 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); | |
1475 | acpi_driver_data(device) = data; | |
1476 | ||
1477 | data->device_id = device_id; | |
1478 | data->video = video; | |
1479 | data->dev = device; | |
1480 | ||
82cae999 RZ |
1481 | attribute = acpi_video_get_device_attr(video, device_id); |
1482 | ||
1483 | if((attribute != NULL) && attribute->device_id_scheme) { | |
1484 | switch (attribute->display_type) { | |
1485 | case ACPI_VIDEO_DISPLAY_CRT: | |
1486 | data->flags.crt = 1; | |
1487 | break; | |
1488 | case ACPI_VIDEO_DISPLAY_TV: | |
1489 | data->flags.tvout = 1; | |
1490 | break; | |
1491 | case ACPI_VIDEO_DISPLAY_DVI: | |
1492 | data->flags.dvi = 1; | |
1493 | break; | |
1494 | case ACPI_VIDEO_DISPLAY_LCD: | |
1495 | data->flags.lcd = 1; | |
1496 | break; | |
1497 | default: | |
1498 | data->flags.unknown = 1; | |
1499 | break; | |
1500 | } | |
1501 | if(attribute->bios_can_detect) | |
1502 | data->flags.bios = 1; | |
1503 | } else | |
1da177e4 | 1504 | data->flags.unknown = 1; |
4be44fcd | 1505 | |
1da177e4 LT |
1506 | acpi_video_device_bind(video, data); |
1507 | acpi_video_device_find_cap(data); | |
1508 | ||
90130268 | 1509 | status = acpi_install_notify_handler(device->handle, |
4be44fcd LB |
1510 | ACPI_DEVICE_NOTIFY, |
1511 | acpi_video_device_notify, | |
1512 | data); | |
1da177e4 LT |
1513 | if (ACPI_FAILURE(status)) { |
1514 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, | |
4be44fcd | 1515 | "Error installing notify handler\n")); |
973bf491 YL |
1516 | if(data->brightness) |
1517 | kfree(data->brightness->levels); | |
1518 | kfree(data->brightness); | |
1519 | kfree(data); | |
1520 | return -ENODEV; | |
1da177e4 LT |
1521 | } |
1522 | ||
bbac81f5 | 1523 | mutex_lock(&video->device_list_lock); |
1da177e4 | 1524 | list_add_tail(&data->entry, &video->video_device_list); |
bbac81f5 | 1525 | mutex_unlock(&video->device_list_lock); |
1da177e4 LT |
1526 | |
1527 | acpi_video_device_add_fs(device); | |
1528 | ||
d550d98d | 1529 | return 0; |
1da177e4 LT |
1530 | } |
1531 | ||
d550d98d | 1532 | return -ENOENT; |
1da177e4 LT |
1533 | } |
1534 | ||
1535 | /* | |
1536 | * Arg: | |
1537 | * video : video bus device | |
1538 | * | |
1539 | * Return: | |
1540 | * none | |
1541 | * | |
1542 | * Enumerate the video device list of the video bus, | |
1543 | * bind the ids with the corresponding video devices | |
1544 | * under the video bus. | |
4be44fcd | 1545 | */ |
1da177e4 | 1546 | |
4be44fcd | 1547 | static void acpi_video_device_rebind(struct acpi_video_bus *video) |
1da177e4 | 1548 | { |
ff102ea9 DT |
1549 | struct acpi_video_device *dev; |
1550 | ||
bbac81f5 | 1551 | mutex_lock(&video->device_list_lock); |
ff102ea9 DT |
1552 | |
1553 | list_for_each_entry(dev, &video->video_device_list, entry) | |
4be44fcd | 1554 | acpi_video_device_bind(video, dev); |
ff102ea9 | 1555 | |
bbac81f5 | 1556 | mutex_unlock(&video->device_list_lock); |
1da177e4 LT |
1557 | } |
1558 | ||
1559 | /* | |
1560 | * Arg: | |
1561 | * video : video bus device | |
1562 | * device : video output device under the video | |
1563 | * bus | |
1564 | * | |
1565 | * Return: | |
1566 | * none | |
1567 | * | |
1568 | * Bind the ids with the corresponding video devices | |
1569 | * under the video bus. | |
4be44fcd | 1570 | */ |
1da177e4 LT |
1571 | |
1572 | static void | |
4be44fcd LB |
1573 | acpi_video_device_bind(struct acpi_video_bus *video, |
1574 | struct acpi_video_device *device) | |
1da177e4 | 1575 | { |
78eed028 | 1576 | struct acpi_video_enumerated_device *ids; |
4be44fcd | 1577 | int i; |
1da177e4 | 1578 | |
78eed028 DT |
1579 | for (i = 0; i < video->attached_count; i++) { |
1580 | ids = &video->attached_array[i]; | |
1581 | if (device->device_id == (ids->value.int_val & 0xffff)) { | |
1582 | ids->bind_info = device; | |
1da177e4 LT |
1583 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "device_bind %d\n", i)); |
1584 | } | |
1585 | } | |
1da177e4 LT |
1586 | } |
1587 | ||
1588 | /* | |
1589 | * Arg: | |
1590 | * video : video bus device | |
1591 | * | |
1592 | * Return: | |
1593 | * < 0 : error | |
1594 | * | |
1595 | * Call _DOD to enumerate all devices attached to display adapter | |
1596 | * | |
4be44fcd | 1597 | */ |
1da177e4 LT |
1598 | |
1599 | static int acpi_video_device_enumerate(struct acpi_video_bus *video) | |
1600 | { | |
4be44fcd LB |
1601 | int status; |
1602 | int count; | |
1603 | int i; | |
78eed028 | 1604 | struct acpi_video_enumerated_device *active_list; |
4be44fcd LB |
1605 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
1606 | union acpi_object *dod = NULL; | |
1607 | union acpi_object *obj; | |
1da177e4 | 1608 | |
90130268 | 1609 | status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer); |
1da177e4 | 1610 | if (!ACPI_SUCCESS(status)) { |
a6fc6720 | 1611 | ACPI_EXCEPTION((AE_INFO, status, "Evaluating _DOD")); |
d550d98d | 1612 | return status; |
1da177e4 LT |
1613 | } |
1614 | ||
50dd0969 | 1615 | dod = buffer.pointer; |
1da177e4 | 1616 | if (!dod || (dod->type != ACPI_TYPE_PACKAGE)) { |
a6fc6720 | 1617 | ACPI_EXCEPTION((AE_INFO, status, "Invalid _DOD data")); |
1da177e4 LT |
1618 | status = -EFAULT; |
1619 | goto out; | |
1620 | } | |
1621 | ||
1622 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d video heads in _DOD\n", | |
4be44fcd | 1623 | dod->package.count)); |
1da177e4 | 1624 | |
78eed028 DT |
1625 | active_list = kcalloc(1 + dod->package.count, |
1626 | sizeof(struct acpi_video_enumerated_device), | |
1627 | GFP_KERNEL); | |
1628 | if (!active_list) { | |
1da177e4 LT |
1629 | status = -ENOMEM; |
1630 | goto out; | |
1631 | } | |
1632 | ||
1633 | count = 0; | |
1634 | for (i = 0; i < dod->package.count; i++) { | |
50dd0969 | 1635 | obj = &dod->package.elements[i]; |
1da177e4 LT |
1636 | |
1637 | if (obj->type != ACPI_TYPE_INTEGER) { | |
78eed028 DT |
1638 | printk(KERN_ERR PREFIX |
1639 | "Invalid _DOD data in element %d\n", i); | |
1640 | continue; | |
1da177e4 | 1641 | } |
78eed028 DT |
1642 | |
1643 | active_list[count].value.int_val = obj->integer.value; | |
1644 | active_list[count].bind_info = NULL; | |
4be44fcd LB |
1645 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "dod element[%d] = %d\n", i, |
1646 | (int)obj->integer.value)); | |
1da177e4 LT |
1647 | count++; |
1648 | } | |
1da177e4 | 1649 | |
6044ec88 | 1650 | kfree(video->attached_array); |
4be44fcd | 1651 | |
78eed028 | 1652 | video->attached_array = active_list; |
1da177e4 | 1653 | video->attached_count = count; |
78eed028 DT |
1654 | |
1655 | out: | |
02438d87 | 1656 | kfree(buffer.pointer); |
d550d98d | 1657 | return status; |
1da177e4 LT |
1658 | } |
1659 | ||
4be44fcd LB |
1660 | static int |
1661 | acpi_video_get_next_level(struct acpi_video_device *device, | |
1662 | u32 level_current, u32 event) | |
1da177e4 | 1663 | { |
63f0edfc | 1664 | int min, max, min_above, max_below, i, l, delta = 255; |
f4715189 TT |
1665 | max = max_below = 0; |
1666 | min = min_above = 255; | |
63f0edfc AS |
1667 | /* Find closest level to level_current */ |
1668 | for (i = 0; i < device->brightness->count; i++) { | |
1669 | l = device->brightness->levels[i]; | |
1670 | if (abs(l - level_current) < abs(delta)) { | |
1671 | delta = l - level_current; | |
1672 | if (!delta) | |
1673 | break; | |
1674 | } | |
1675 | } | |
1676 | /* Ajust level_current to closest available level */ | |
1677 | level_current += delta; | |
f4715189 TT |
1678 | for (i = 0; i < device->brightness->count; i++) { |
1679 | l = device->brightness->levels[i]; | |
1680 | if (l < min) | |
1681 | min = l; | |
1682 | if (l > max) | |
1683 | max = l; | |
1684 | if (l < min_above && l > level_current) | |
1685 | min_above = l; | |
1686 | if (l > max_below && l < level_current) | |
1687 | max_below = l; | |
1688 | } | |
1689 | ||
1690 | switch (event) { | |
1691 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: | |
1692 | return (level_current < max) ? min_above : min; | |
1693 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: | |
1694 | return (level_current < max) ? min_above : max; | |
1695 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: | |
1696 | return (level_current > min) ? max_below : min; | |
1697 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: | |
1698 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: | |
1699 | return 0; | |
1700 | default: | |
1701 | return level_current; | |
1702 | } | |
1da177e4 LT |
1703 | } |
1704 | ||
1da177e4 | 1705 | static void |
4be44fcd | 1706 | acpi_video_switch_brightness(struct acpi_video_device *device, int event) |
1da177e4 LT |
1707 | { |
1708 | unsigned long level_current, level_next; | |
1709 | acpi_video_device_lcd_get_level_current(device, &level_current); | |
1710 | level_next = acpi_video_get_next_level(device, level_current, event); | |
1711 | acpi_video_device_lcd_set_level(device, level_next); | |
1712 | } | |
1713 | ||
1714 | static int | |
4be44fcd LB |
1715 | acpi_video_bus_get_devices(struct acpi_video_bus *video, |
1716 | struct acpi_device *device) | |
1da177e4 | 1717 | { |
4be44fcd | 1718 | int status = 0; |
ff102ea9 | 1719 | struct acpi_device *dev; |
1da177e4 LT |
1720 | |
1721 | acpi_video_device_enumerate(video); | |
1722 | ||
ff102ea9 | 1723 | list_for_each_entry(dev, &device->children, node) { |
1da177e4 LT |
1724 | |
1725 | status = acpi_video_bus_get_one_device(dev, video); | |
1726 | if (ACPI_FAILURE(status)) { | |
a6fc6720 | 1727 | ACPI_EXCEPTION((AE_INFO, status, "Cant attach device")); |
1da177e4 LT |
1728 | continue; |
1729 | } | |
1da177e4 | 1730 | } |
d550d98d | 1731 | return status; |
1da177e4 LT |
1732 | } |
1733 | ||
4be44fcd | 1734 | static int acpi_video_bus_put_one_device(struct acpi_video_device *device) |
1da177e4 | 1735 | { |
031ec77b | 1736 | acpi_status status; |
1da177e4 LT |
1737 | struct acpi_video_bus *video; |
1738 | ||
1da177e4 LT |
1739 | |
1740 | if (!device || !device->video) | |
d550d98d | 1741 | return -ENOENT; |
1da177e4 LT |
1742 | |
1743 | video = device->video; | |
1744 | ||
1da177e4 LT |
1745 | acpi_video_device_remove_fs(device->dev); |
1746 | ||
90130268 | 1747 | status = acpi_remove_notify_handler(device->dev->handle, |
4be44fcd LB |
1748 | ACPI_DEVICE_NOTIFY, |
1749 | acpi_video_device_notify); | |
599a52d1 | 1750 | backlight_device_unregister(device->backlight); |
702ed512 ZR |
1751 | if (device->cdev) { |
1752 | sysfs_remove_link(&device->dev->dev.kobj, | |
1753 | "thermal_cooling"); | |
1754 | sysfs_remove_link(&device->cdev->device.kobj, | |
1755 | "device"); | |
1756 | thermal_cooling_device_unregister(device->cdev); | |
1757 | device->cdev = NULL; | |
1758 | } | |
23b0f015 | 1759 | video_output_unregister(device->output_dev); |
ff102ea9 | 1760 | |
d550d98d | 1761 | return 0; |
1da177e4 LT |
1762 | } |
1763 | ||
4be44fcd | 1764 | static int acpi_video_bus_put_devices(struct acpi_video_bus *video) |
1da177e4 | 1765 | { |
4be44fcd | 1766 | int status; |
ff102ea9 | 1767 | struct acpi_video_device *dev, *next; |
1da177e4 | 1768 | |
bbac81f5 | 1769 | mutex_lock(&video->device_list_lock); |
1da177e4 | 1770 | |
ff102ea9 | 1771 | list_for_each_entry_safe(dev, next, &video->video_device_list, entry) { |
1da177e4 | 1772 | |
ff102ea9 | 1773 | status = acpi_video_bus_put_one_device(dev); |
4be44fcd LB |
1774 | if (ACPI_FAILURE(status)) |
1775 | printk(KERN_WARNING PREFIX | |
1776 | "hhuuhhuu bug in acpi video driver.\n"); | |
1da177e4 | 1777 | |
ff102ea9 DT |
1778 | if (dev->brightness) { |
1779 | kfree(dev->brightness->levels); | |
1780 | kfree(dev->brightness); | |
1781 | } | |
1782 | list_del(&dev->entry); | |
1783 | kfree(dev); | |
1da177e4 LT |
1784 | } |
1785 | ||
bbac81f5 | 1786 | mutex_unlock(&video->device_list_lock); |
ff102ea9 | 1787 | |
d550d98d | 1788 | return 0; |
1da177e4 LT |
1789 | } |
1790 | ||
1791 | /* acpi_video interface */ | |
1792 | ||
4be44fcd | 1793 | static int acpi_video_bus_start_devices(struct acpi_video_bus *video) |
1da177e4 | 1794 | { |
a21101c4 | 1795 | return acpi_video_bus_DOS(video, 0, 0); |
1da177e4 LT |
1796 | } |
1797 | ||
4be44fcd | 1798 | static int acpi_video_bus_stop_devices(struct acpi_video_bus *video) |
1da177e4 LT |
1799 | { |
1800 | return acpi_video_bus_DOS(video, 0, 1); | |
1801 | } | |
1802 | ||
4be44fcd | 1803 | static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 1804 | { |
50dd0969 | 1805 | struct acpi_video_bus *video = data; |
4be44fcd | 1806 | struct acpi_device *device = NULL; |
e9dab196 LY |
1807 | struct input_dev *input; |
1808 | int keycode; | |
1809 | ||
1da177e4 | 1810 | if (!video) |
d550d98d | 1811 | return; |
1da177e4 | 1812 | |
e6afa0de | 1813 | device = video->device; |
e9dab196 | 1814 | input = video->input; |
1da177e4 LT |
1815 | |
1816 | switch (event) { | |
98fb8fe1 | 1817 | case ACPI_VIDEO_NOTIFY_SWITCH: /* User requested a switch, |
1da177e4 | 1818 | * most likely via hotkey. */ |
14e04fb3 | 1819 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1820 | keycode = KEY_SWITCHVIDEOMODE; |
1da177e4 LT |
1821 | break; |
1822 | ||
98fb8fe1 | 1823 | case ACPI_VIDEO_NOTIFY_PROBE: /* User plugged in or removed a video |
1da177e4 LT |
1824 | * connector. */ |
1825 | acpi_video_device_enumerate(video); | |
1826 | acpi_video_device_rebind(video); | |
14e04fb3 | 1827 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1828 | keycode = KEY_SWITCHVIDEOMODE; |
1da177e4 LT |
1829 | break; |
1830 | ||
4be44fcd | 1831 | case ACPI_VIDEO_NOTIFY_CYCLE: /* Cycle Display output hotkey pressed. */ |
25c87f7f | 1832 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1833 | keycode = KEY_SWITCHVIDEOMODE; |
1834 | break; | |
4be44fcd | 1835 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: /* Next Display output hotkey pressed. */ |
25c87f7f | 1836 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1837 | keycode = KEY_VIDEO_NEXT; |
1838 | break; | |
4be44fcd | 1839 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: /* previous Display output hotkey pressed. */ |
14e04fb3 | 1840 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1841 | keycode = KEY_VIDEO_PREV; |
1da177e4 LT |
1842 | break; |
1843 | ||
1844 | default: | |
e9dab196 | 1845 | keycode = KEY_UNKNOWN; |
1da177e4 | 1846 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
4be44fcd | 1847 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
1848 | break; |
1849 | } | |
1850 | ||
7761f638 | 1851 | acpi_notifier_call_chain(device, event, 0); |
e9dab196 LY |
1852 | input_report_key(input, keycode, 1); |
1853 | input_sync(input); | |
1854 | input_report_key(input, keycode, 0); | |
1855 | input_sync(input); | |
1856 | ||
d550d98d | 1857 | return; |
1da177e4 LT |
1858 | } |
1859 | ||
4be44fcd | 1860 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 1861 | { |
50dd0969 | 1862 | struct acpi_video_device *video_device = data; |
4be44fcd | 1863 | struct acpi_device *device = NULL; |
e9dab196 LY |
1864 | struct acpi_video_bus *bus; |
1865 | struct input_dev *input; | |
1866 | int keycode; | |
1da177e4 | 1867 | |
1da177e4 | 1868 | if (!video_device) |
d550d98d | 1869 | return; |
1da177e4 | 1870 | |
e6afa0de | 1871 | device = video_device->dev; |
e9dab196 LY |
1872 | bus = video_device->video; |
1873 | input = bus->input; | |
1da177e4 LT |
1874 | |
1875 | switch (event) { | |
4be44fcd | 1876 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */ |
8a681a4d ZR |
1877 | if (brightness_switch_enabled) |
1878 | acpi_video_switch_brightness(video_device, event); | |
14e04fb3 | 1879 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1880 | keycode = KEY_BRIGHTNESS_CYCLE; |
1881 | break; | |
4be44fcd | 1882 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: /* Increase brightness */ |
8a681a4d ZR |
1883 | if (brightness_switch_enabled) |
1884 | acpi_video_switch_brightness(video_device, event); | |
25c87f7f | 1885 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1886 | keycode = KEY_BRIGHTNESSUP; |
1887 | break; | |
4be44fcd | 1888 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: /* Decrease brightness */ |
8a681a4d ZR |
1889 | if (brightness_switch_enabled) |
1890 | acpi_video_switch_brightness(video_device, event); | |
25c87f7f | 1891 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1892 | keycode = KEY_BRIGHTNESSDOWN; |
1893 | break; | |
4be44fcd | 1894 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightnesss */ |
8a681a4d ZR |
1895 | if (brightness_switch_enabled) |
1896 | acpi_video_switch_brightness(video_device, event); | |
25c87f7f | 1897 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1898 | keycode = KEY_BRIGHTNESS_ZERO; |
1899 | break; | |
4be44fcd | 1900 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: /* display device off */ |
8a681a4d ZR |
1901 | if (brightness_switch_enabled) |
1902 | acpi_video_switch_brightness(video_device, event); | |
14e04fb3 | 1903 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1904 | keycode = KEY_DISPLAY_OFF; |
1da177e4 LT |
1905 | break; |
1906 | default: | |
e9dab196 | 1907 | keycode = KEY_UNKNOWN; |
1da177e4 | 1908 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
4be44fcd | 1909 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
1910 | break; |
1911 | } | |
e9dab196 | 1912 | |
7761f638 | 1913 | acpi_notifier_call_chain(device, event, 0); |
e9dab196 LY |
1914 | input_report_key(input, keycode, 1); |
1915 | input_sync(input); | |
1916 | input_report_key(input, keycode, 0); | |
1917 | input_sync(input); | |
1918 | ||
d550d98d | 1919 | return; |
1da177e4 LT |
1920 | } |
1921 | ||
e6d9da1d | 1922 | static int instance; |
863c1490 MG |
1923 | static int acpi_video_resume(struct acpi_device *device) |
1924 | { | |
1925 | struct acpi_video_bus *video; | |
1926 | struct acpi_video_device *video_device; | |
1927 | int i; | |
1928 | ||
1929 | if (!device || !acpi_driver_data(device)) | |
1930 | return -EINVAL; | |
1931 | ||
1932 | video = acpi_driver_data(device); | |
1933 | ||
1934 | for (i = 0; i < video->attached_count; i++) { | |
1935 | video_device = video->attached_array[i].bind_info; | |
1936 | if (video_device && video_device->backlight) | |
1937 | acpi_video_set_brightness(video_device->backlight); | |
1938 | } | |
1939 | return AE_OK; | |
1940 | } | |
1941 | ||
4be44fcd | 1942 | static int acpi_video_bus_add(struct acpi_device *device) |
1da177e4 | 1943 | { |
f51e8391 DT |
1944 | acpi_status status; |
1945 | struct acpi_video_bus *video; | |
e9dab196 | 1946 | struct input_dev *input; |
f51e8391 | 1947 | int error; |
1da177e4 | 1948 | |
36bcbec7 | 1949 | video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL); |
1da177e4 | 1950 | if (!video) |
d550d98d | 1951 | return -ENOMEM; |
1da177e4 | 1952 | |
e6d9da1d ZR |
1953 | /* a hack to fix the duplicate name "VID" problem on T61 */ |
1954 | if (!strcmp(device->pnp.bus_id, "VID")) { | |
1955 | if (instance) | |
1956 | device->pnp.bus_id[3] = '0' + instance; | |
1957 | instance ++; | |
1958 | } | |
1959 | ||
e6afa0de | 1960 | video->device = device; |
1da177e4 LT |
1961 | strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME); |
1962 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); | |
1963 | acpi_driver_data(device) = video; | |
1964 | ||
1965 | acpi_video_bus_find_cap(video); | |
f51e8391 DT |
1966 | error = acpi_video_bus_check(video); |
1967 | if (error) | |
1968 | goto err_free_video; | |
1da177e4 | 1969 | |
f51e8391 DT |
1970 | error = acpi_video_bus_add_fs(device); |
1971 | if (error) | |
1972 | goto err_free_video; | |
1da177e4 | 1973 | |
bbac81f5 | 1974 | mutex_init(&video->device_list_lock); |
1da177e4 LT |
1975 | INIT_LIST_HEAD(&video->video_device_list); |
1976 | ||
1977 | acpi_video_bus_get_devices(video, device); | |
1978 | acpi_video_bus_start_devices(video); | |
1979 | ||
90130268 | 1980 | status = acpi_install_notify_handler(device->handle, |
4be44fcd LB |
1981 | ACPI_DEVICE_NOTIFY, |
1982 | acpi_video_bus_notify, video); | |
1da177e4 LT |
1983 | if (ACPI_FAILURE(status)) { |
1984 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, | |
4be44fcd | 1985 | "Error installing notify handler\n")); |
f51e8391 DT |
1986 | error = -ENODEV; |
1987 | goto err_stop_video; | |
1da177e4 LT |
1988 | } |
1989 | ||
e9dab196 | 1990 | video->input = input = input_allocate_device(); |
f51e8391 DT |
1991 | if (!input) { |
1992 | error = -ENOMEM; | |
1993 | goto err_uninstall_notify; | |
1994 | } | |
e9dab196 LY |
1995 | |
1996 | snprintf(video->phys, sizeof(video->phys), | |
1997 | "%s/video/input0", acpi_device_hid(video->device)); | |
1998 | ||
1999 | input->name = acpi_device_name(video->device); | |
2000 | input->phys = video->phys; | |
2001 | input->id.bustype = BUS_HOST; | |
2002 | input->id.product = 0x06; | |
91c05c66 | 2003 | input->dev.parent = &device->dev; |
e9dab196 LY |
2004 | input->evbit[0] = BIT(EV_KEY); |
2005 | set_bit(KEY_SWITCHVIDEOMODE, input->keybit); | |
2006 | set_bit(KEY_VIDEO_NEXT, input->keybit); | |
2007 | set_bit(KEY_VIDEO_PREV, input->keybit); | |
2008 | set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit); | |
2009 | set_bit(KEY_BRIGHTNESSUP, input->keybit); | |
2010 | set_bit(KEY_BRIGHTNESSDOWN, input->keybit); | |
2011 | set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); | |
2012 | set_bit(KEY_DISPLAY_OFF, input->keybit); | |
2013 | set_bit(KEY_UNKNOWN, input->keybit); | |
e9dab196 | 2014 | |
f51e8391 DT |
2015 | error = input_register_device(input); |
2016 | if (error) | |
2017 | goto err_free_input_dev; | |
e9dab196 | 2018 | |
1da177e4 | 2019 | printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", |
4be44fcd LB |
2020 | ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device), |
2021 | video->flags.multihead ? "yes" : "no", | |
2022 | video->flags.rom ? "yes" : "no", | |
2023 | video->flags.post ? "yes" : "no"); | |
1da177e4 | 2024 | |
f51e8391 DT |
2025 | return 0; |
2026 | ||
2027 | err_free_input_dev: | |
2028 | input_free_device(input); | |
2029 | err_uninstall_notify: | |
2030 | acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, | |
2031 | acpi_video_bus_notify); | |
2032 | err_stop_video: | |
2033 | acpi_video_bus_stop_devices(video); | |
2034 | acpi_video_bus_put_devices(video); | |
2035 | kfree(video->attached_array); | |
2036 | acpi_video_bus_remove_fs(device); | |
2037 | err_free_video: | |
2038 | kfree(video); | |
2039 | acpi_driver_data(device) = NULL; | |
1da177e4 | 2040 | |
f51e8391 | 2041 | return error; |
1da177e4 LT |
2042 | } |
2043 | ||
4be44fcd | 2044 | static int acpi_video_bus_remove(struct acpi_device *device, int type) |
1da177e4 | 2045 | { |
4be44fcd LB |
2046 | acpi_status status = 0; |
2047 | struct acpi_video_bus *video = NULL; | |
1da177e4 | 2048 | |
1da177e4 LT |
2049 | |
2050 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 2051 | return -EINVAL; |
1da177e4 | 2052 | |
50dd0969 | 2053 | video = acpi_driver_data(device); |
1da177e4 LT |
2054 | |
2055 | acpi_video_bus_stop_devices(video); | |
2056 | ||
90130268 | 2057 | status = acpi_remove_notify_handler(video->device->handle, |
4be44fcd LB |
2058 | ACPI_DEVICE_NOTIFY, |
2059 | acpi_video_bus_notify); | |
1da177e4 LT |
2060 | |
2061 | acpi_video_bus_put_devices(video); | |
2062 | acpi_video_bus_remove_fs(device); | |
2063 | ||
e9dab196 | 2064 | input_unregister_device(video->input); |
6044ec88 | 2065 | kfree(video->attached_array); |
1da177e4 LT |
2066 | kfree(video); |
2067 | ||
d550d98d | 2068 | return 0; |
1da177e4 LT |
2069 | } |
2070 | ||
4be44fcd | 2071 | static int __init acpi_video_init(void) |
1da177e4 | 2072 | { |
4be44fcd | 2073 | int result = 0; |
1da177e4 | 2074 | |
1da177e4 LT |
2075 | |
2076 | /* | |
4be44fcd LB |
2077 | acpi_dbg_level = 0xFFFFFFFF; |
2078 | acpi_dbg_layer = 0x08000000; | |
2079 | */ | |
1da177e4 LT |
2080 | |
2081 | acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir); | |
2082 | if (!acpi_video_dir) | |
d550d98d | 2083 | return -ENODEV; |
1da177e4 LT |
2084 | acpi_video_dir->owner = THIS_MODULE; |
2085 | ||
2086 | result = acpi_bus_register_driver(&acpi_video_bus); | |
2087 | if (result < 0) { | |
2088 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); | |
d550d98d | 2089 | return -ENODEV; |
1da177e4 LT |
2090 | } |
2091 | ||
d550d98d | 2092 | return 0; |
1da177e4 LT |
2093 | } |
2094 | ||
4be44fcd | 2095 | static void __exit acpi_video_exit(void) |
1da177e4 | 2096 | { |
1da177e4 LT |
2097 | |
2098 | acpi_bus_unregister_driver(&acpi_video_bus); | |
2099 | ||
2100 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); | |
2101 | ||
d550d98d | 2102 | return; |
1da177e4 LT |
2103 | } |
2104 | ||
2105 | module_init(acpi_video_init); | |
2106 | module_exit(acpi_video_exit); |