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> | |
32 | #include <linux/proc_fs.h> | |
33 | #include <linux/seq_file.h> | |
e9dab196 | 34 | #include <linux/input.h> |
2f3d000a | 35 | #include <linux/backlight.h> |
23b0f015 | 36 | #include <linux/video_output.h> |
1da177e4 LT |
37 | #include <asm/uaccess.h> |
38 | ||
39 | #include <acpi/acpi_bus.h> | |
40 | #include <acpi/acpi_drivers.h> | |
41 | ||
42 | #define ACPI_VIDEO_COMPONENT 0x08000000 | |
43 | #define ACPI_VIDEO_CLASS "video" | |
1da177e4 LT |
44 | #define ACPI_VIDEO_BUS_NAME "Video Bus" |
45 | #define ACPI_VIDEO_DEVICE_NAME "Video Device" | |
46 | #define ACPI_VIDEO_NOTIFY_SWITCH 0x80 | |
47 | #define ACPI_VIDEO_NOTIFY_PROBE 0x81 | |
48 | #define ACPI_VIDEO_NOTIFY_CYCLE 0x82 | |
49 | #define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83 | |
50 | #define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84 | |
51 | ||
f4715189 TT |
52 | #define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x85 |
53 | #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86 | |
54 | #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87 | |
55 | #define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x88 | |
56 | #define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x89 | |
1da177e4 | 57 | |
1da177e4 LT |
58 | #define ACPI_VIDEO_HEAD_INVALID (~0u - 1) |
59 | #define ACPI_VIDEO_HEAD_END (~0u) | |
2f3d000a | 60 | #define MAX_NAME_LEN 20 |
1da177e4 | 61 | |
82cae999 RZ |
62 | #define ACPI_VIDEO_DISPLAY_CRT 1 |
63 | #define ACPI_VIDEO_DISPLAY_TV 2 | |
64 | #define ACPI_VIDEO_DISPLAY_DVI 3 | |
65 | #define ACPI_VIDEO_DISPLAY_LCD 4 | |
66 | ||
1da177e4 | 67 | #define _COMPONENT ACPI_VIDEO_COMPONENT |
f52fd66d | 68 | ACPI_MODULE_NAME("video"); |
1da177e4 | 69 | |
f52fd66d | 70 | MODULE_AUTHOR("Bruno Ducrot"); |
7cda93e0 | 71 | MODULE_DESCRIPTION("ACPI Video Driver"); |
1da177e4 LT |
72 | MODULE_LICENSE("GPL"); |
73 | ||
4be44fcd LB |
74 | static int acpi_video_bus_add(struct acpi_device *device); |
75 | static int acpi_video_bus_remove(struct acpi_device *device, int type); | |
1da177e4 | 76 | |
1ba90e3a TR |
77 | static const struct acpi_device_id video_device_ids[] = { |
78 | {ACPI_VIDEO_HID, 0}, | |
79 | {"", 0}, | |
80 | }; | |
81 | MODULE_DEVICE_TABLE(acpi, video_device_ids); | |
82 | ||
1da177e4 | 83 | static struct acpi_driver acpi_video_bus = { |
c2b6705b | 84 | .name = "video", |
1da177e4 | 85 | .class = ACPI_VIDEO_CLASS, |
1ba90e3a | 86 | .ids = video_device_ids, |
1da177e4 LT |
87 | .ops = { |
88 | .add = acpi_video_bus_add, | |
89 | .remove = acpi_video_bus_remove, | |
4be44fcd | 90 | }, |
1da177e4 LT |
91 | }; |
92 | ||
93 | struct acpi_video_bus_flags { | |
4be44fcd LB |
94 | u8 multihead:1; /* can switch video heads */ |
95 | u8 rom:1; /* can retrieve a video rom */ | |
96 | u8 post:1; /* can configure the head to */ | |
97 | u8 reserved:5; | |
1da177e4 LT |
98 | }; |
99 | ||
100 | struct acpi_video_bus_cap { | |
4be44fcd LB |
101 | u8 _DOS:1; /*Enable/Disable output switching */ |
102 | u8 _DOD:1; /*Enumerate all devices attached to display adapter */ | |
103 | u8 _ROM:1; /*Get ROM Data */ | |
104 | u8 _GPD:1; /*Get POST Device */ | |
105 | u8 _SPD:1; /*Set POST Device */ | |
106 | u8 _VPO:1; /*Video POST Options */ | |
107 | u8 reserved:2; | |
1da177e4 LT |
108 | }; |
109 | ||
4be44fcd LB |
110 | struct acpi_video_device_attrib { |
111 | u32 display_index:4; /* A zero-based instance of the Display */ | |
98fb8fe1 | 112 | u32 display_port_attachment:4; /*This field differentiates the display type */ |
4be44fcd | 113 | u32 display_type:4; /*Describe the specific type in use */ |
98fb8fe1 | 114 | u32 vendor_specific:4; /*Chipset Vendor Specific */ |
4be44fcd LB |
115 | u32 bios_can_detect:1; /*BIOS can detect the device */ |
116 | u32 depend_on_vga:1; /*Non-VGA output device whose power is related to | |
117 | the VGA device. */ | |
118 | u32 pipe_id:3; /*For VGA multiple-head devices. */ | |
119 | u32 reserved:10; /*Must be 0 */ | |
120 | u32 device_id_scheme:1; /*Device ID Scheme */ | |
1da177e4 LT |
121 | }; |
122 | ||
123 | struct acpi_video_enumerated_device { | |
124 | union { | |
125 | u32 int_val; | |
4be44fcd | 126 | struct acpi_video_device_attrib attrib; |
1da177e4 LT |
127 | } value; |
128 | struct acpi_video_device *bind_info; | |
129 | }; | |
130 | ||
131 | struct acpi_video_bus { | |
e6afa0de | 132 | struct acpi_device *device; |
4be44fcd | 133 | u8 dos_setting; |
1da177e4 | 134 | struct acpi_video_enumerated_device *attached_array; |
4be44fcd LB |
135 | u8 attached_count; |
136 | struct acpi_video_bus_cap cap; | |
1da177e4 | 137 | struct acpi_video_bus_flags flags; |
4be44fcd LB |
138 | struct semaphore sem; |
139 | struct list_head video_device_list; | |
140 | struct proc_dir_entry *dir; | |
e9dab196 LY |
141 | struct input_dev *input; |
142 | char phys[32]; /* for input device */ | |
1da177e4 LT |
143 | }; |
144 | ||
145 | struct acpi_video_device_flags { | |
4be44fcd LB |
146 | u8 crt:1; |
147 | u8 lcd:1; | |
148 | u8 tvout:1; | |
82cae999 | 149 | u8 dvi:1; |
4be44fcd LB |
150 | u8 bios:1; |
151 | u8 unknown:1; | |
82cae999 | 152 | u8 reserved:2; |
1da177e4 LT |
153 | }; |
154 | ||
155 | struct acpi_video_device_cap { | |
4be44fcd LB |
156 | u8 _ADR:1; /*Return the unique ID */ |
157 | u8 _BCL:1; /*Query list of brightness control levels supported */ | |
158 | u8 _BCM:1; /*Set the brightness level */ | |
2f3d000a | 159 | u8 _BQC:1; /* Get current brightness level */ |
4be44fcd LB |
160 | u8 _DDC:1; /*Return the EDID for this device */ |
161 | u8 _DCS:1; /*Return status of output device */ | |
162 | u8 _DGS:1; /*Query graphics state */ | |
163 | u8 _DSS:1; /*Device state set */ | |
1da177e4 LT |
164 | }; |
165 | ||
166 | struct acpi_video_device_brightness { | |
4be44fcd LB |
167 | int curr; |
168 | int count; | |
169 | int *levels; | |
1da177e4 LT |
170 | }; |
171 | ||
172 | struct acpi_video_device { | |
4be44fcd LB |
173 | unsigned long device_id; |
174 | struct acpi_video_device_flags flags; | |
175 | struct acpi_video_device_cap cap; | |
176 | struct list_head entry; | |
177 | struct acpi_video_bus *video; | |
178 | struct acpi_device *dev; | |
1da177e4 | 179 | struct acpi_video_device_brightness *brightness; |
2f3d000a | 180 | struct backlight_device *backlight; |
23b0f015 | 181 | struct output_device *output_dev; |
1da177e4 LT |
182 | }; |
183 | ||
1da177e4 LT |
184 | /* bus */ |
185 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file); | |
186 | static struct file_operations acpi_video_bus_info_fops = { | |
4be44fcd LB |
187 | .open = acpi_video_bus_info_open_fs, |
188 | .read = seq_read, | |
189 | .llseek = seq_lseek, | |
190 | .release = single_release, | |
1da177e4 LT |
191 | }; |
192 | ||
193 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file); | |
194 | static struct file_operations acpi_video_bus_ROM_fops = { | |
4be44fcd LB |
195 | .open = acpi_video_bus_ROM_open_fs, |
196 | .read = seq_read, | |
197 | .llseek = seq_lseek, | |
198 | .release = single_release, | |
1da177e4 LT |
199 | }; |
200 | ||
4be44fcd LB |
201 | static int acpi_video_bus_POST_info_open_fs(struct inode *inode, |
202 | struct file *file); | |
1da177e4 | 203 | static struct file_operations acpi_video_bus_POST_info_fops = { |
4be44fcd LB |
204 | .open = acpi_video_bus_POST_info_open_fs, |
205 | .read = seq_read, | |
206 | .llseek = seq_lseek, | |
207 | .release = single_release, | |
1da177e4 LT |
208 | }; |
209 | ||
210 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file); | |
211 | static struct file_operations acpi_video_bus_POST_fops = { | |
4be44fcd LB |
212 | .open = acpi_video_bus_POST_open_fs, |
213 | .read = seq_read, | |
214 | .llseek = seq_lseek, | |
215 | .release = single_release, | |
1da177e4 LT |
216 | }; |
217 | ||
1da177e4 LT |
218 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file); |
219 | static struct file_operations acpi_video_bus_DOS_fops = { | |
4be44fcd LB |
220 | .open = acpi_video_bus_DOS_open_fs, |
221 | .read = seq_read, | |
222 | .llseek = seq_lseek, | |
223 | .release = single_release, | |
1da177e4 LT |
224 | }; |
225 | ||
226 | /* device */ | |
4be44fcd LB |
227 | static int acpi_video_device_info_open_fs(struct inode *inode, |
228 | struct file *file); | |
1da177e4 | 229 | static struct file_operations acpi_video_device_info_fops = { |
4be44fcd LB |
230 | .open = acpi_video_device_info_open_fs, |
231 | .read = seq_read, | |
232 | .llseek = seq_lseek, | |
233 | .release = single_release, | |
1da177e4 LT |
234 | }; |
235 | ||
4be44fcd LB |
236 | static int acpi_video_device_state_open_fs(struct inode *inode, |
237 | struct file *file); | |
1da177e4 | 238 | static struct file_operations acpi_video_device_state_fops = { |
4be44fcd LB |
239 | .open = acpi_video_device_state_open_fs, |
240 | .read = seq_read, | |
241 | .llseek = seq_lseek, | |
242 | .release = single_release, | |
1da177e4 LT |
243 | }; |
244 | ||
4be44fcd LB |
245 | static int acpi_video_device_brightness_open_fs(struct inode *inode, |
246 | struct file *file); | |
1da177e4 | 247 | static struct file_operations acpi_video_device_brightness_fops = { |
4be44fcd LB |
248 | .open = acpi_video_device_brightness_open_fs, |
249 | .read = seq_read, | |
250 | .llseek = seq_lseek, | |
251 | .release = single_release, | |
1da177e4 LT |
252 | }; |
253 | ||
4be44fcd LB |
254 | static int acpi_video_device_EDID_open_fs(struct inode *inode, |
255 | struct file *file); | |
1da177e4 | 256 | static struct file_operations acpi_video_device_EDID_fops = { |
4be44fcd LB |
257 | .open = acpi_video_device_EDID_open_fs, |
258 | .read = seq_read, | |
259 | .llseek = seq_lseek, | |
260 | .release = single_release, | |
1da177e4 LT |
261 | }; |
262 | ||
4be44fcd | 263 | static char device_decode[][30] = { |
1da177e4 LT |
264 | "motherboard VGA device", |
265 | "PCI VGA device", | |
266 | "AGP VGA device", | |
267 | "UNKNOWN", | |
268 | }; | |
269 | ||
4be44fcd LB |
270 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data); |
271 | static void acpi_video_device_rebind(struct acpi_video_bus *video); | |
272 | static void acpi_video_device_bind(struct acpi_video_bus *video, | |
273 | struct acpi_video_device *device); | |
1da177e4 | 274 | static int acpi_video_device_enumerate(struct acpi_video_bus *video); |
4be44fcd | 275 | static int acpi_video_switch_output(struct acpi_video_bus *video, int event); |
2f3d000a YL |
276 | static int acpi_video_device_lcd_set_level(struct acpi_video_device *device, |
277 | int level); | |
278 | static int acpi_video_device_lcd_get_level_current( | |
279 | struct acpi_video_device *device, | |
280 | unsigned long *level); | |
4be44fcd LB |
281 | static int acpi_video_get_next_level(struct acpi_video_device *device, |
282 | u32 level_current, u32 event); | |
283 | static void acpi_video_switch_brightness(struct acpi_video_device *device, | |
284 | int event); | |
23b0f015 LY |
285 | static int acpi_video_device_get_state(struct acpi_video_device *device, |
286 | unsigned long *state); | |
287 | static int acpi_video_output_get(struct output_device *od); | |
288 | static int acpi_video_device_set_state(struct acpi_video_device *device, int state); | |
1da177e4 | 289 | |
2f3d000a YL |
290 | /*backlight device sysfs support*/ |
291 | static int acpi_video_get_brightness(struct backlight_device *bd) | |
292 | { | |
293 | unsigned long cur_level; | |
294 | struct acpi_video_device *vd = | |
655bfd7a | 295 | (struct acpi_video_device *)bl_get_data(bd); |
2f3d000a YL |
296 | acpi_video_device_lcd_get_level_current(vd, &cur_level); |
297 | return (int) cur_level; | |
298 | } | |
299 | ||
300 | static int acpi_video_set_brightness(struct backlight_device *bd) | |
301 | { | |
599a52d1 | 302 | int request_level = bd->props.brightness; |
2f3d000a | 303 | struct acpi_video_device *vd = |
655bfd7a | 304 | (struct acpi_video_device *)bl_get_data(bd); |
2f3d000a YL |
305 | acpi_video_device_lcd_set_level(vd, request_level); |
306 | return 0; | |
307 | } | |
308 | ||
599a52d1 RP |
309 | static struct backlight_ops acpi_backlight_ops = { |
310 | .get_brightness = acpi_video_get_brightness, | |
311 | .update_status = acpi_video_set_brightness, | |
312 | }; | |
313 | ||
23b0f015 LY |
314 | /*video output device sysfs support*/ |
315 | static int acpi_video_output_get(struct output_device *od) | |
316 | { | |
317 | unsigned long state; | |
318 | struct acpi_video_device *vd = | |
60043428 | 319 | (struct acpi_video_device *)dev_get_drvdata(&od->dev); |
23b0f015 LY |
320 | acpi_video_device_get_state(vd, &state); |
321 | return (int)state; | |
322 | } | |
323 | ||
324 | static int acpi_video_output_set(struct output_device *od) | |
325 | { | |
326 | unsigned long state = od->request_state; | |
327 | struct acpi_video_device *vd= | |
60043428 | 328 | (struct acpi_video_device *)dev_get_drvdata(&od->dev); |
23b0f015 LY |
329 | return acpi_video_device_set_state(vd, state); |
330 | } | |
331 | ||
332 | static struct output_properties acpi_output_properties = { | |
333 | .set_state = acpi_video_output_set, | |
334 | .get_status = acpi_video_output_get, | |
335 | }; | |
1da177e4 LT |
336 | /* -------------------------------------------------------------------------- |
337 | Video Management | |
338 | -------------------------------------------------------------------------- */ | |
339 | ||
340 | /* device */ | |
341 | ||
342 | static int | |
4be44fcd | 343 | acpi_video_device_query(struct acpi_video_device *device, unsigned long *state) |
1da177e4 | 344 | { |
4be44fcd | 345 | int status; |
90130268 PM |
346 | |
347 | status = acpi_evaluate_integer(device->dev->handle, "_DGS", NULL, state); | |
1da177e4 | 348 | |
d550d98d | 349 | return status; |
1da177e4 LT |
350 | } |
351 | ||
352 | static int | |
4be44fcd LB |
353 | acpi_video_device_get_state(struct acpi_video_device *device, |
354 | unsigned long *state) | |
1da177e4 | 355 | { |
4be44fcd | 356 | int status; |
1da177e4 | 357 | |
90130268 | 358 | status = acpi_evaluate_integer(device->dev->handle, "_DCS", NULL, state); |
1da177e4 | 359 | |
d550d98d | 360 | return status; |
1da177e4 LT |
361 | } |
362 | ||
363 | static int | |
4be44fcd | 364 | acpi_video_device_set_state(struct acpi_video_device *device, int state) |
1da177e4 | 365 | { |
4be44fcd LB |
366 | int status; |
367 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
368 | struct acpi_object_list args = { 1, &arg0 }; | |
824b558b | 369 | unsigned long ret; |
1da177e4 | 370 | |
1da177e4 LT |
371 | |
372 | arg0.integer.value = state; | |
90130268 | 373 | status = acpi_evaluate_integer(device->dev->handle, "_DSS", &args, &ret); |
1da177e4 | 374 | |
d550d98d | 375 | return status; |
1da177e4 LT |
376 | } |
377 | ||
378 | static int | |
4be44fcd LB |
379 | acpi_video_device_lcd_query_levels(struct acpi_video_device *device, |
380 | union acpi_object **levels) | |
1da177e4 | 381 | { |
4be44fcd LB |
382 | int status; |
383 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
384 | union acpi_object *obj; | |
1da177e4 | 385 | |
1da177e4 LT |
386 | |
387 | *levels = NULL; | |
388 | ||
90130268 | 389 | status = acpi_evaluate_object(device->dev->handle, "_BCL", NULL, &buffer); |
1da177e4 | 390 | if (!ACPI_SUCCESS(status)) |
d550d98d | 391 | return status; |
4be44fcd | 392 | obj = (union acpi_object *)buffer.pointer; |
6665bda7 | 393 | if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { |
6468463a | 394 | printk(KERN_ERR PREFIX "Invalid _BCL data\n"); |
1da177e4 LT |
395 | status = -EFAULT; |
396 | goto err; | |
397 | } | |
398 | ||
399 | *levels = obj; | |
400 | ||
d550d98d | 401 | return 0; |
1da177e4 | 402 | |
4be44fcd | 403 | err: |
6044ec88 | 404 | kfree(buffer.pointer); |
1da177e4 | 405 | |
d550d98d | 406 | return status; |
1da177e4 LT |
407 | } |
408 | ||
409 | static int | |
4be44fcd | 410 | acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level) |
1da177e4 | 411 | { |
4500ca8e | 412 | int status = AE_OK; |
4be44fcd LB |
413 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; |
414 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 415 | |
1da177e4 LT |
416 | |
417 | arg0.integer.value = level; | |
1da177e4 | 418 | |
4500ca8e AS |
419 | if (device->cap._BCM) |
420 | status = acpi_evaluate_object(device->dev->handle, "_BCM", | |
421 | &args, NULL); | |
422 | device->brightness->curr = level; | |
d550d98d | 423 | return status; |
1da177e4 LT |
424 | } |
425 | ||
426 | static int | |
4be44fcd LB |
427 | acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, |
428 | unsigned long *level) | |
1da177e4 | 429 | { |
4500ca8e AS |
430 | if (device->cap._BQC) |
431 | return acpi_evaluate_integer(device->dev->handle, "_BQC", NULL, | |
432 | level); | |
433 | *level = device->brightness->curr; | |
434 | return AE_OK; | |
1da177e4 LT |
435 | } |
436 | ||
437 | static int | |
4be44fcd LB |
438 | acpi_video_device_EDID(struct acpi_video_device *device, |
439 | union acpi_object **edid, ssize_t length) | |
1da177e4 | 440 | { |
4be44fcd LB |
441 | int status; |
442 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; | |
443 | union acpi_object *obj; | |
444 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
445 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 446 | |
1da177e4 LT |
447 | |
448 | *edid = NULL; | |
449 | ||
450 | if (!device) | |
d550d98d | 451 | return -ENODEV; |
1da177e4 LT |
452 | if (length == 128) |
453 | arg0.integer.value = 1; | |
454 | else if (length == 256) | |
455 | arg0.integer.value = 2; | |
456 | else | |
d550d98d | 457 | return -EINVAL; |
1da177e4 | 458 | |
90130268 | 459 | status = acpi_evaluate_object(device->dev->handle, "_DDC", &args, &buffer); |
1da177e4 | 460 | if (ACPI_FAILURE(status)) |
d550d98d | 461 | return -ENODEV; |
1da177e4 | 462 | |
50dd0969 | 463 | obj = buffer.pointer; |
1da177e4 LT |
464 | |
465 | if (obj && obj->type == ACPI_TYPE_BUFFER) | |
466 | *edid = obj; | |
467 | else { | |
6468463a | 468 | printk(KERN_ERR PREFIX "Invalid _DDC data\n"); |
1da177e4 LT |
469 | status = -EFAULT; |
470 | kfree(obj); | |
471 | } | |
472 | ||
d550d98d | 473 | return status; |
1da177e4 LT |
474 | } |
475 | ||
1da177e4 LT |
476 | /* bus */ |
477 | ||
478 | static int | |
4be44fcd | 479 | acpi_video_bus_set_POST(struct acpi_video_bus *video, unsigned long option) |
1da177e4 | 480 | { |
4be44fcd LB |
481 | int status; |
482 | unsigned long tmp; | |
483 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
484 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 485 | |
1da177e4 LT |
486 | |
487 | arg0.integer.value = option; | |
488 | ||
90130268 | 489 | status = acpi_evaluate_integer(video->device->handle, "_SPD", &args, &tmp); |
1da177e4 | 490 | if (ACPI_SUCCESS(status)) |
4be44fcd | 491 | status = tmp ? (-EINVAL) : (AE_OK); |
1da177e4 | 492 | |
d550d98d | 493 | return status; |
1da177e4 LT |
494 | } |
495 | ||
496 | static int | |
4be44fcd | 497 | acpi_video_bus_get_POST(struct acpi_video_bus *video, unsigned long *id) |
1da177e4 LT |
498 | { |
499 | int status; | |
500 | ||
90130268 | 501 | status = acpi_evaluate_integer(video->device->handle, "_GPD", NULL, id); |
1da177e4 | 502 | |
d550d98d | 503 | return status; |
1da177e4 LT |
504 | } |
505 | ||
506 | static int | |
4be44fcd LB |
507 | acpi_video_bus_POST_options(struct acpi_video_bus *video, |
508 | unsigned long *options) | |
1da177e4 | 509 | { |
4be44fcd | 510 | int status; |
1da177e4 | 511 | |
90130268 | 512 | status = acpi_evaluate_integer(video->device->handle, "_VPO", NULL, options); |
1da177e4 LT |
513 | *options &= 3; |
514 | ||
d550d98d | 515 | return status; |
1da177e4 LT |
516 | } |
517 | ||
518 | /* | |
519 | * Arg: | |
520 | * video : video bus device pointer | |
521 | * bios_flag : | |
522 | * 0. The system BIOS should NOT automatically switch(toggle) | |
523 | * the active display output. | |
524 | * 1. The system BIOS should automatically switch (toggle) the | |
98fb8fe1 | 525 | * active display output. No switch event. |
1da177e4 LT |
526 | * 2. The _DGS value should be locked. |
527 | * 3. The system BIOS should not automatically switch (toggle) the | |
528 | * active display output, but instead generate the display switch | |
529 | * event notify code. | |
530 | * lcd_flag : | |
531 | * 0. The system BIOS should automatically control the brightness level | |
98fb8fe1 | 532 | * of the LCD when the power changes from AC to DC |
1da177e4 | 533 | * 1. The system BIOS should NOT automatically control the brightness |
98fb8fe1 | 534 | * level of the LCD when the power changes from AC to DC. |
1da177e4 LT |
535 | * Return Value: |
536 | * -1 wrong arg. | |
537 | */ | |
538 | ||
539 | static int | |
4be44fcd | 540 | acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) |
1da177e4 | 541 | { |
4be44fcd LB |
542 | acpi_integer status = 0; |
543 | union acpi_object arg0 = { ACPI_TYPE_INTEGER }; | |
544 | struct acpi_object_list args = { 1, &arg0 }; | |
1da177e4 | 545 | |
1da177e4 | 546 | |
4be44fcd | 547 | if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) { |
1da177e4 LT |
548 | status = -1; |
549 | goto Failed; | |
550 | } | |
551 | arg0.integer.value = (lcd_flag << 2) | bios_flag; | |
552 | video->dos_setting = arg0.integer.value; | |
90130268 | 553 | acpi_evaluate_object(video->device->handle, "_DOS", &args, NULL); |
1da177e4 | 554 | |
4be44fcd | 555 | Failed: |
d550d98d | 556 | return status; |
1da177e4 LT |
557 | } |
558 | ||
559 | /* | |
560 | * Arg: | |
561 | * device : video output device (LCD, CRT, ..) | |
562 | * | |
563 | * Return Value: | |
564 | * None | |
565 | * | |
98fb8fe1 | 566 | * Find out all required AML methods defined under the output |
1da177e4 LT |
567 | * device. |
568 | */ | |
569 | ||
4be44fcd | 570 | static void acpi_video_device_find_cap(struct acpi_video_device *device) |
1da177e4 | 571 | { |
1da177e4 LT |
572 | acpi_handle h_dummy1; |
573 | int i; | |
2f3d000a | 574 | u32 max_level = 0; |
1da177e4 LT |
575 | union acpi_object *obj = NULL; |
576 | struct acpi_video_device_brightness *br = NULL; | |
577 | ||
1da177e4 | 578 | |
4be44fcd | 579 | memset(&device->cap, 0, 4); |
1da177e4 | 580 | |
90130268 | 581 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) { |
1da177e4 LT |
582 | device->cap._ADR = 1; |
583 | } | |
90130268 | 584 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCL", &h_dummy1))) { |
4be44fcd | 585 | device->cap._BCL = 1; |
1da177e4 | 586 | } |
90130268 | 587 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCM", &h_dummy1))) { |
4be44fcd | 588 | device->cap._BCM = 1; |
1da177e4 | 589 | } |
2f3d000a YL |
590 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle,"_BQC",&h_dummy1))) |
591 | device->cap._BQC = 1; | |
90130268 | 592 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) { |
4be44fcd | 593 | device->cap._DDC = 1; |
1da177e4 | 594 | } |
90130268 | 595 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DCS", &h_dummy1))) { |
1da177e4 LT |
596 | device->cap._DCS = 1; |
597 | } | |
90130268 | 598 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DGS", &h_dummy1))) { |
1da177e4 LT |
599 | device->cap._DGS = 1; |
600 | } | |
90130268 | 601 | if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DSS", &h_dummy1))) { |
1da177e4 LT |
602 | device->cap._DSS = 1; |
603 | } | |
604 | ||
f70ac0e9 DK |
605 | if (ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) { |
606 | ||
607 | if (obj->package.count >= 2) { | |
608 | int count = 0; | |
609 | union acpi_object *o; | |
610 | ||
611 | br = kzalloc(sizeof(*br), GFP_KERNEL); | |
612 | if (!br) { | |
613 | printk(KERN_ERR "can't allocate memory\n"); | |
1da177e4 | 614 | } else { |
f70ac0e9 DK |
615 | br->levels = kmalloc(obj->package.count * |
616 | sizeof *(br->levels), GFP_KERNEL); | |
617 | if (!br->levels) | |
618 | goto out; | |
619 | ||
620 | for (i = 0; i < obj->package.count; i++) { | |
621 | o = (union acpi_object *)&obj->package. | |
622 | elements[i]; | |
623 | if (o->type != ACPI_TYPE_INTEGER) { | |
624 | printk(KERN_ERR PREFIX "Invalid data\n"); | |
625 | continue; | |
626 | } | |
627 | br->levels[count] = (u32) o->integer.value; | |
628 | ||
629 | if (br->levels[count] > max_level) | |
630 | max_level = br->levels[count]; | |
631 | count++; | |
632 | } | |
633 | out: | |
634 | if (count < 2) { | |
635 | kfree(br->levels); | |
636 | kfree(br); | |
637 | } else { | |
638 | br->count = count; | |
639 | device->brightness = br; | |
640 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | |
641 | "found %d brightness levels\n", | |
642 | count)); | |
643 | } | |
1da177e4 LT |
644 | } |
645 | } | |
f70ac0e9 DK |
646 | |
647 | } else { | |
648 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Could not query available LCD brightness level\n")); | |
1da177e4 LT |
649 | } |
650 | ||
d1dd0c23 | 651 | kfree(obj); |
1da177e4 | 652 | |
f70ac0e9 | 653 | if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){ |
2f3d000a YL |
654 | unsigned long tmp; |
655 | static int count = 0; | |
656 | char *name; | |
2f3d000a YL |
657 | name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); |
658 | if (!name) | |
659 | return; | |
660 | ||
2f3d000a | 661 | sprintf(name, "acpi_video%d", count++); |
2f3d000a | 662 | acpi_video_device_lcd_get_level_current(device, &tmp); |
2f3d000a | 663 | device->backlight = backlight_device_register(name, |
599a52d1 RP |
664 | NULL, device, &acpi_backlight_ops); |
665 | device->backlight->props.max_brightness = max_level; | |
666 | device->backlight->props.brightness = (int)tmp; | |
667 | backlight_update_status(device->backlight); | |
668 | ||
2f3d000a YL |
669 | kfree(name); |
670 | } | |
23b0f015 LY |
671 | if (device->cap._DCS && device->cap._DSS){ |
672 | static int count = 0; | |
673 | char *name; | |
674 | name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); | |
675 | if (!name) | |
676 | return; | |
677 | sprintf(name, "acpi_video%d", count++); | |
678 | device->output_dev = video_output_register(name, | |
679 | NULL, device, &acpi_output_properties); | |
680 | kfree(name); | |
681 | } | |
d550d98d | 682 | return; |
1da177e4 LT |
683 | } |
684 | ||
685 | /* | |
686 | * Arg: | |
687 | * device : video output device (VGA) | |
688 | * | |
689 | * Return Value: | |
690 | * None | |
691 | * | |
98fb8fe1 | 692 | * Find out all required AML methods defined under the video bus device. |
1da177e4 LT |
693 | */ |
694 | ||
4be44fcd | 695 | static void acpi_video_bus_find_cap(struct acpi_video_bus *video) |
1da177e4 | 696 | { |
4be44fcd | 697 | acpi_handle h_dummy1; |
1da177e4 | 698 | |
4be44fcd | 699 | memset(&video->cap, 0, 4); |
90130268 | 700 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) { |
1da177e4 LT |
701 | video->cap._DOS = 1; |
702 | } | |
90130268 | 703 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOD", &h_dummy1))) { |
1da177e4 LT |
704 | video->cap._DOD = 1; |
705 | } | |
90130268 | 706 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_ROM", &h_dummy1))) { |
1da177e4 LT |
707 | video->cap._ROM = 1; |
708 | } | |
90130268 | 709 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_GPD", &h_dummy1))) { |
1da177e4 LT |
710 | video->cap._GPD = 1; |
711 | } | |
90130268 | 712 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_SPD", &h_dummy1))) { |
1da177e4 LT |
713 | video->cap._SPD = 1; |
714 | } | |
90130268 | 715 | if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_VPO", &h_dummy1))) { |
1da177e4 LT |
716 | video->cap._VPO = 1; |
717 | } | |
718 | } | |
719 | ||
720 | /* | |
721 | * Check whether the video bus device has required AML method to | |
722 | * support the desired features | |
723 | */ | |
724 | ||
4be44fcd | 725 | static int acpi_video_bus_check(struct acpi_video_bus *video) |
1da177e4 | 726 | { |
4be44fcd | 727 | acpi_status status = -ENOENT; |
1da177e4 | 728 | |
1da177e4 LT |
729 | |
730 | if (!video) | |
d550d98d | 731 | return -EINVAL; |
1da177e4 LT |
732 | |
733 | /* Since there is no HID, CID and so on for VGA driver, we have | |
734 | * to check well known required nodes. | |
735 | */ | |
736 | ||
98fb8fe1 | 737 | /* Does this device support video switching? */ |
4be44fcd | 738 | if (video->cap._DOS) { |
1da177e4 LT |
739 | video->flags.multihead = 1; |
740 | status = 0; | |
741 | } | |
742 | ||
98fb8fe1 | 743 | /* Does this device support retrieving a video ROM? */ |
4be44fcd | 744 | if (video->cap._ROM) { |
1da177e4 LT |
745 | video->flags.rom = 1; |
746 | status = 0; | |
747 | } | |
748 | ||
98fb8fe1 | 749 | /* Does this device support configuring which video device to POST? */ |
4be44fcd | 750 | if (video->cap._GPD && video->cap._SPD && video->cap._VPO) { |
1da177e4 LT |
751 | video->flags.post = 1; |
752 | status = 0; | |
753 | } | |
754 | ||
d550d98d | 755 | return status; |
1da177e4 LT |
756 | } |
757 | ||
758 | /* -------------------------------------------------------------------------- | |
759 | FS Interface (/proc) | |
760 | -------------------------------------------------------------------------- */ | |
761 | ||
4be44fcd | 762 | static struct proc_dir_entry *acpi_video_dir; |
1da177e4 LT |
763 | |
764 | /* video devices */ | |
765 | ||
4be44fcd | 766 | static int acpi_video_device_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 767 | { |
50dd0969 | 768 | struct acpi_video_device *dev = seq->private; |
1da177e4 | 769 | |
1da177e4 LT |
770 | |
771 | if (!dev) | |
772 | goto end; | |
773 | ||
774 | seq_printf(seq, "device_id: 0x%04x\n", (u32) dev->device_id); | |
775 | seq_printf(seq, "type: "); | |
776 | if (dev->flags.crt) | |
777 | seq_printf(seq, "CRT\n"); | |
778 | else if (dev->flags.lcd) | |
779 | seq_printf(seq, "LCD\n"); | |
780 | else if (dev->flags.tvout) | |
781 | seq_printf(seq, "TVOUT\n"); | |
82cae999 RZ |
782 | else if (dev->flags.dvi) |
783 | seq_printf(seq, "DVI\n"); | |
1da177e4 LT |
784 | else |
785 | seq_printf(seq, "UNKNOWN\n"); | |
786 | ||
4be44fcd | 787 | seq_printf(seq, "known by bios: %s\n", dev->flags.bios ? "yes" : "no"); |
1da177e4 | 788 | |
4be44fcd | 789 | end: |
d550d98d | 790 | return 0; |
1da177e4 LT |
791 | } |
792 | ||
793 | static int | |
4be44fcd | 794 | acpi_video_device_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
795 | { |
796 | return single_open(file, acpi_video_device_info_seq_show, | |
797 | PDE(inode)->data); | |
798 | } | |
799 | ||
4be44fcd | 800 | static int acpi_video_device_state_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 801 | { |
4be44fcd | 802 | int status; |
50dd0969 | 803 | struct acpi_video_device *dev = seq->private; |
4be44fcd | 804 | unsigned long state; |
1da177e4 | 805 | |
1da177e4 LT |
806 | |
807 | if (!dev) | |
808 | goto end; | |
809 | ||
810 | status = acpi_video_device_get_state(dev, &state); | |
811 | seq_printf(seq, "state: "); | |
812 | if (ACPI_SUCCESS(status)) | |
813 | seq_printf(seq, "0x%02lx\n", state); | |
814 | else | |
815 | seq_printf(seq, "<not supported>\n"); | |
816 | ||
817 | status = acpi_video_device_query(dev, &state); | |
818 | seq_printf(seq, "query: "); | |
819 | if (ACPI_SUCCESS(status)) | |
820 | seq_printf(seq, "0x%02lx\n", state); | |
821 | else | |
822 | seq_printf(seq, "<not supported>\n"); | |
823 | ||
4be44fcd | 824 | end: |
d550d98d | 825 | return 0; |
1da177e4 LT |
826 | } |
827 | ||
828 | static int | |
4be44fcd | 829 | acpi_video_device_state_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
830 | { |
831 | return single_open(file, acpi_video_device_state_seq_show, | |
832 | PDE(inode)->data); | |
833 | } | |
834 | ||
835 | static ssize_t | |
4be44fcd LB |
836 | acpi_video_device_write_state(struct file *file, |
837 | const char __user * buffer, | |
838 | size_t count, loff_t * data) | |
1da177e4 | 839 | { |
4be44fcd | 840 | int status; |
50dd0969 JE |
841 | struct seq_file *m = file->private_data; |
842 | struct acpi_video_device *dev = m->private; | |
4be44fcd LB |
843 | char str[12] = { 0 }; |
844 | u32 state = 0; | |
1da177e4 | 845 | |
1da177e4 LT |
846 | |
847 | if (!dev || count + 1 > sizeof str) | |
d550d98d | 848 | return -EINVAL; |
1da177e4 LT |
849 | |
850 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 851 | return -EFAULT; |
1da177e4 LT |
852 | |
853 | str[count] = 0; | |
854 | state = simple_strtoul(str, NULL, 0); | |
4be44fcd | 855 | state &= ((1ul << 31) | (1ul << 30) | (1ul << 0)); |
1da177e4 LT |
856 | |
857 | status = acpi_video_device_set_state(dev, state); | |
858 | ||
859 | if (status) | |
d550d98d | 860 | return -EFAULT; |
1da177e4 | 861 | |
d550d98d | 862 | return count; |
1da177e4 LT |
863 | } |
864 | ||
865 | static int | |
4be44fcd | 866 | acpi_video_device_brightness_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 867 | { |
50dd0969 | 868 | struct acpi_video_device *dev = seq->private; |
4be44fcd | 869 | int i; |
1da177e4 | 870 | |
1da177e4 LT |
871 | |
872 | if (!dev || !dev->brightness) { | |
873 | seq_printf(seq, "<not supported>\n"); | |
d550d98d | 874 | return 0; |
1da177e4 LT |
875 | } |
876 | ||
877 | seq_printf(seq, "levels: "); | |
878 | for (i = 0; i < dev->brightness->count; i++) | |
879 | seq_printf(seq, " %d", dev->brightness->levels[i]); | |
880 | seq_printf(seq, "\ncurrent: %d\n", dev->brightness->curr); | |
881 | ||
d550d98d | 882 | return 0; |
1da177e4 LT |
883 | } |
884 | ||
885 | static int | |
4be44fcd | 886 | acpi_video_device_brightness_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
887 | { |
888 | return single_open(file, acpi_video_device_brightness_seq_show, | |
889 | PDE(inode)->data); | |
890 | } | |
891 | ||
892 | static ssize_t | |
4be44fcd LB |
893 | acpi_video_device_write_brightness(struct file *file, |
894 | const char __user * buffer, | |
895 | size_t count, loff_t * data) | |
1da177e4 | 896 | { |
50dd0969 JE |
897 | struct seq_file *m = file->private_data; |
898 | struct acpi_video_device *dev = m->private; | |
4be44fcd LB |
899 | char str[4] = { 0 }; |
900 | unsigned int level = 0; | |
901 | int i; | |
1da177e4 | 902 | |
1da177e4 | 903 | |
59d399d3 | 904 | if (!dev || !dev->brightness || count + 1 > sizeof str) |
d550d98d | 905 | return -EINVAL; |
1da177e4 LT |
906 | |
907 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 908 | return -EFAULT; |
1da177e4 LT |
909 | |
910 | str[count] = 0; | |
911 | level = simple_strtoul(str, NULL, 0); | |
4be44fcd | 912 | |
1da177e4 | 913 | if (level > 100) |
d550d98d | 914 | return -EFAULT; |
1da177e4 | 915 | |
98fb8fe1 | 916 | /* validate through the list of available levels */ |
1da177e4 LT |
917 | for (i = 0; i < dev->brightness->count; i++) |
918 | if (level == dev->brightness->levels[i]) { | |
4be44fcd LB |
919 | if (ACPI_SUCCESS |
920 | (acpi_video_device_lcd_set_level(dev, level))) | |
1da177e4 LT |
921 | dev->brightness->curr = level; |
922 | break; | |
923 | } | |
924 | ||
d550d98d | 925 | return count; |
1da177e4 LT |
926 | } |
927 | ||
4be44fcd | 928 | static int acpi_video_device_EDID_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 929 | { |
50dd0969 | 930 | struct acpi_video_device *dev = seq->private; |
4be44fcd LB |
931 | int status; |
932 | int i; | |
933 | union acpi_object *edid = NULL; | |
1da177e4 | 934 | |
1da177e4 LT |
935 | |
936 | if (!dev) | |
937 | goto out; | |
938 | ||
4be44fcd | 939 | status = acpi_video_device_EDID(dev, &edid, 128); |
1da177e4 | 940 | if (ACPI_FAILURE(status)) { |
4be44fcd | 941 | status = acpi_video_device_EDID(dev, &edid, 256); |
1da177e4 LT |
942 | } |
943 | ||
944 | if (ACPI_FAILURE(status)) { | |
945 | goto out; | |
946 | } | |
947 | ||
948 | if (edid && edid->type == ACPI_TYPE_BUFFER) { | |
949 | for (i = 0; i < edid->buffer.length; i++) | |
950 | seq_putc(seq, edid->buffer.pointer[i]); | |
951 | } | |
952 | ||
4be44fcd | 953 | out: |
1da177e4 LT |
954 | if (!edid) |
955 | seq_printf(seq, "<not supported>\n"); | |
956 | else | |
957 | kfree(edid); | |
958 | ||
d550d98d | 959 | return 0; |
1da177e4 LT |
960 | } |
961 | ||
962 | static int | |
4be44fcd | 963 | acpi_video_device_EDID_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
964 | { |
965 | return single_open(file, acpi_video_device_EDID_seq_show, | |
966 | PDE(inode)->data); | |
967 | } | |
968 | ||
4be44fcd | 969 | static int acpi_video_device_add_fs(struct acpi_device *device) |
1da177e4 | 970 | { |
4be44fcd | 971 | struct proc_dir_entry *entry = NULL; |
1da177e4 LT |
972 | struct acpi_video_device *vid_dev; |
973 | ||
1da177e4 LT |
974 | |
975 | if (!device) | |
d550d98d | 976 | return -ENODEV; |
1da177e4 | 977 | |
50dd0969 | 978 | vid_dev = acpi_driver_data(device); |
1da177e4 | 979 | if (!vid_dev) |
d550d98d | 980 | return -ENODEV; |
1da177e4 LT |
981 | |
982 | if (!acpi_device_dir(device)) { | |
983 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), | |
4be44fcd | 984 | vid_dev->video->dir); |
1da177e4 | 985 | if (!acpi_device_dir(device)) |
d550d98d | 986 | return -ENODEV; |
1da177e4 LT |
987 | acpi_device_dir(device)->owner = THIS_MODULE; |
988 | } | |
989 | ||
990 | /* 'info' [R] */ | |
991 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); | |
992 | if (!entry) | |
d550d98d | 993 | return -ENODEV; |
1da177e4 LT |
994 | else { |
995 | entry->proc_fops = &acpi_video_device_info_fops; | |
996 | entry->data = acpi_driver_data(device); | |
997 | entry->owner = THIS_MODULE; | |
998 | } | |
999 | ||
1000 | /* 'state' [R/W] */ | |
4be44fcd LB |
1001 | entry = |
1002 | create_proc_entry("state", S_IFREG | S_IRUGO | S_IWUSR, | |
1003 | acpi_device_dir(device)); | |
1da177e4 | 1004 | if (!entry) |
d550d98d | 1005 | return -ENODEV; |
1da177e4 | 1006 | else { |
d479e908 | 1007 | acpi_video_device_state_fops.write = acpi_video_device_write_state; |
1da177e4 | 1008 | entry->proc_fops = &acpi_video_device_state_fops; |
1da177e4 LT |
1009 | entry->data = acpi_driver_data(device); |
1010 | entry->owner = THIS_MODULE; | |
1011 | } | |
1012 | ||
1013 | /* 'brightness' [R/W] */ | |
4be44fcd LB |
1014 | entry = |
1015 | create_proc_entry("brightness", S_IFREG | S_IRUGO | S_IWUSR, | |
1016 | acpi_device_dir(device)); | |
1da177e4 | 1017 | if (!entry) |
d550d98d | 1018 | return -ENODEV; |
1da177e4 | 1019 | else { |
d479e908 | 1020 | acpi_video_device_brightness_fops.write = acpi_video_device_write_brightness; |
1da177e4 | 1021 | entry->proc_fops = &acpi_video_device_brightness_fops; |
1da177e4 LT |
1022 | entry->data = acpi_driver_data(device); |
1023 | entry->owner = THIS_MODULE; | |
1024 | } | |
1025 | ||
1026 | /* 'EDID' [R] */ | |
1027 | entry = create_proc_entry("EDID", S_IRUGO, acpi_device_dir(device)); | |
1028 | if (!entry) | |
d550d98d | 1029 | return -ENODEV; |
1da177e4 LT |
1030 | else { |
1031 | entry->proc_fops = &acpi_video_device_EDID_fops; | |
1032 | entry->data = acpi_driver_data(device); | |
1033 | entry->owner = THIS_MODULE; | |
1034 | } | |
1035 | ||
d550d98d | 1036 | return 0; |
1da177e4 LT |
1037 | } |
1038 | ||
4be44fcd | 1039 | static int acpi_video_device_remove_fs(struct acpi_device *device) |
1da177e4 LT |
1040 | { |
1041 | struct acpi_video_device *vid_dev; | |
1da177e4 | 1042 | |
50dd0969 | 1043 | vid_dev = acpi_driver_data(device); |
1da177e4 | 1044 | if (!vid_dev || !vid_dev->video || !vid_dev->video->dir) |
d550d98d | 1045 | return -ENODEV; |
1da177e4 LT |
1046 | |
1047 | if (acpi_device_dir(device)) { | |
1048 | remove_proc_entry("info", acpi_device_dir(device)); | |
1049 | remove_proc_entry("state", acpi_device_dir(device)); | |
1050 | remove_proc_entry("brightness", acpi_device_dir(device)); | |
1051 | remove_proc_entry("EDID", acpi_device_dir(device)); | |
4be44fcd | 1052 | remove_proc_entry(acpi_device_bid(device), vid_dev->video->dir); |
1da177e4 LT |
1053 | acpi_device_dir(device) = NULL; |
1054 | } | |
1055 | ||
d550d98d | 1056 | return 0; |
1da177e4 LT |
1057 | } |
1058 | ||
1da177e4 | 1059 | /* video bus */ |
4be44fcd | 1060 | static int acpi_video_bus_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1061 | { |
50dd0969 | 1062 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1063 | |
1da177e4 LT |
1064 | |
1065 | if (!video) | |
1066 | goto end; | |
1067 | ||
1068 | seq_printf(seq, "Switching heads: %s\n", | |
4be44fcd | 1069 | video->flags.multihead ? "yes" : "no"); |
1da177e4 | 1070 | seq_printf(seq, "Video ROM: %s\n", |
4be44fcd | 1071 | video->flags.rom ? "yes" : "no"); |
1da177e4 | 1072 | seq_printf(seq, "Device to be POSTed on boot: %s\n", |
4be44fcd | 1073 | video->flags.post ? "yes" : "no"); |
1da177e4 | 1074 | |
4be44fcd | 1075 | end: |
d550d98d | 1076 | return 0; |
1da177e4 LT |
1077 | } |
1078 | ||
4be44fcd | 1079 | static int acpi_video_bus_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1080 | { |
4be44fcd LB |
1081 | return single_open(file, acpi_video_bus_info_seq_show, |
1082 | PDE(inode)->data); | |
1da177e4 LT |
1083 | } |
1084 | ||
4be44fcd | 1085 | static int acpi_video_bus_ROM_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1086 | { |
50dd0969 | 1087 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1088 | |
1da177e4 LT |
1089 | |
1090 | if (!video) | |
1091 | goto end; | |
1092 | ||
1093 | printk(KERN_INFO PREFIX "Please implement %s\n", __FUNCTION__); | |
1094 | seq_printf(seq, "<TODO>\n"); | |
1095 | ||
4be44fcd | 1096 | end: |
d550d98d | 1097 | return 0; |
1da177e4 LT |
1098 | } |
1099 | ||
4be44fcd | 1100 | static int acpi_video_bus_ROM_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1101 | { |
1102 | return single_open(file, acpi_video_bus_ROM_seq_show, PDE(inode)->data); | |
1103 | } | |
1104 | ||
4be44fcd | 1105 | static int acpi_video_bus_POST_info_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1106 | { |
50dd0969 | 1107 | struct acpi_video_bus *video = seq->private; |
4be44fcd LB |
1108 | unsigned long options; |
1109 | int status; | |
1da177e4 | 1110 | |
1da177e4 LT |
1111 | |
1112 | if (!video) | |
1113 | goto end; | |
1114 | ||
1115 | status = acpi_video_bus_POST_options(video, &options); | |
1116 | if (ACPI_SUCCESS(status)) { | |
1117 | if (!(options & 1)) { | |
4be44fcd LB |
1118 | printk(KERN_WARNING PREFIX |
1119 | "The motherboard VGA device is not listed as a possible POST device.\n"); | |
1120 | printk(KERN_WARNING PREFIX | |
98fb8fe1 | 1121 | "This indicates a BIOS bug. Please contact the manufacturer.\n"); |
1da177e4 LT |
1122 | } |
1123 | printk("%lx\n", options); | |
98fb8fe1 | 1124 | seq_printf(seq, "can POST: <integrated video>"); |
1da177e4 LT |
1125 | if (options & 2) |
1126 | seq_printf(seq, " <PCI video>"); | |
1127 | if (options & 4) | |
1128 | seq_printf(seq, " <AGP video>"); | |
1129 | seq_putc(seq, '\n'); | |
1130 | } else | |
1131 | seq_printf(seq, "<not supported>\n"); | |
4be44fcd | 1132 | end: |
d550d98d | 1133 | return 0; |
1da177e4 LT |
1134 | } |
1135 | ||
1136 | static int | |
4be44fcd | 1137 | acpi_video_bus_POST_info_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1138 | { |
4be44fcd LB |
1139 | return single_open(file, acpi_video_bus_POST_info_seq_show, |
1140 | PDE(inode)->data); | |
1da177e4 LT |
1141 | } |
1142 | ||
4be44fcd | 1143 | static int acpi_video_bus_POST_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1144 | { |
50dd0969 | 1145 | struct acpi_video_bus *video = seq->private; |
4be44fcd LB |
1146 | int status; |
1147 | unsigned long id; | |
1da177e4 | 1148 | |
1da177e4 LT |
1149 | |
1150 | if (!video) | |
1151 | goto end; | |
1152 | ||
4be44fcd | 1153 | status = acpi_video_bus_get_POST(video, &id); |
1da177e4 LT |
1154 | if (!ACPI_SUCCESS(status)) { |
1155 | seq_printf(seq, "<not supported>\n"); | |
1156 | goto end; | |
1157 | } | |
98fb8fe1 | 1158 | seq_printf(seq, "device POSTed is <%s>\n", device_decode[id & 3]); |
1da177e4 | 1159 | |
4be44fcd | 1160 | end: |
d550d98d | 1161 | return 0; |
1da177e4 LT |
1162 | } |
1163 | ||
4be44fcd | 1164 | static int acpi_video_bus_DOS_seq_show(struct seq_file *seq, void *offset) |
1da177e4 | 1165 | { |
50dd0969 | 1166 | struct acpi_video_bus *video = seq->private; |
1da177e4 | 1167 | |
1da177e4 | 1168 | |
4be44fcd | 1169 | seq_printf(seq, "DOS setting: <%d>\n", video->dos_setting); |
1da177e4 | 1170 | |
d550d98d | 1171 | return 0; |
1da177e4 LT |
1172 | } |
1173 | ||
4be44fcd | 1174 | static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file) |
1da177e4 | 1175 | { |
4be44fcd LB |
1176 | return single_open(file, acpi_video_bus_POST_seq_show, |
1177 | PDE(inode)->data); | |
1da177e4 LT |
1178 | } |
1179 | ||
4be44fcd | 1180 | static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file) |
1da177e4 LT |
1181 | { |
1182 | return single_open(file, acpi_video_bus_DOS_seq_show, PDE(inode)->data); | |
1183 | } | |
1184 | ||
1185 | static ssize_t | |
4be44fcd LB |
1186 | acpi_video_bus_write_POST(struct file *file, |
1187 | const char __user * buffer, | |
1188 | size_t count, loff_t * data) | |
1da177e4 | 1189 | { |
4be44fcd | 1190 | int status; |
50dd0969 JE |
1191 | struct seq_file *m = file->private_data; |
1192 | struct acpi_video_bus *video = m->private; | |
4be44fcd LB |
1193 | char str[12] = { 0 }; |
1194 | unsigned long opt, options; | |
1da177e4 | 1195 | |
1da177e4 | 1196 | |
1da177e4 | 1197 | if (!video || count + 1 > sizeof str) |
d550d98d | 1198 | return -EINVAL; |
1da177e4 LT |
1199 | |
1200 | status = acpi_video_bus_POST_options(video, &options); | |
1201 | if (!ACPI_SUCCESS(status)) | |
d550d98d | 1202 | return -EINVAL; |
1da177e4 LT |
1203 | |
1204 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 1205 | return -EFAULT; |
1da177e4 LT |
1206 | |
1207 | str[count] = 0; | |
1208 | opt = strtoul(str, NULL, 0); | |
1209 | if (opt > 3) | |
d550d98d | 1210 | return -EFAULT; |
1da177e4 | 1211 | |
98fb8fe1 | 1212 | /* just in case an OEM 'forgot' the motherboard... */ |
1da177e4 LT |
1213 | options |= 1; |
1214 | ||
1215 | if (options & (1ul << opt)) { | |
4be44fcd | 1216 | status = acpi_video_bus_set_POST(video, opt); |
1da177e4 | 1217 | if (!ACPI_SUCCESS(status)) |
d550d98d | 1218 | return -EFAULT; |
1da177e4 LT |
1219 | |
1220 | } | |
1221 | ||
d550d98d | 1222 | return count; |
1da177e4 LT |
1223 | } |
1224 | ||
1225 | static ssize_t | |
4be44fcd LB |
1226 | acpi_video_bus_write_DOS(struct file *file, |
1227 | const char __user * buffer, | |
1228 | size_t count, loff_t * data) | |
1da177e4 | 1229 | { |
4be44fcd | 1230 | int status; |
50dd0969 JE |
1231 | struct seq_file *m = file->private_data; |
1232 | struct acpi_video_bus *video = m->private; | |
4be44fcd LB |
1233 | char str[12] = { 0 }; |
1234 | unsigned long opt; | |
1da177e4 | 1235 | |
1da177e4 | 1236 | |
1da177e4 | 1237 | if (!video || count + 1 > sizeof str) |
d550d98d | 1238 | return -EINVAL; |
1da177e4 LT |
1239 | |
1240 | if (copy_from_user(str, buffer, count)) | |
d550d98d | 1241 | return -EFAULT; |
1da177e4 LT |
1242 | |
1243 | str[count] = 0; | |
1244 | opt = strtoul(str, NULL, 0); | |
1245 | if (opt > 7) | |
d550d98d | 1246 | return -EFAULT; |
1da177e4 | 1247 | |
4be44fcd | 1248 | status = acpi_video_bus_DOS(video, opt & 0x3, (opt & 0x4) >> 2); |
1da177e4 LT |
1249 | |
1250 | if (!ACPI_SUCCESS(status)) | |
d550d98d | 1251 | return -EFAULT; |
1da177e4 | 1252 | |
d550d98d | 1253 | return count; |
1da177e4 LT |
1254 | } |
1255 | ||
4be44fcd | 1256 | static int acpi_video_bus_add_fs(struct acpi_device *device) |
1da177e4 | 1257 | { |
4be44fcd LB |
1258 | struct proc_dir_entry *entry = NULL; |
1259 | struct acpi_video_bus *video; | |
1da177e4 | 1260 | |
1da177e4 | 1261 | |
50dd0969 | 1262 | video = acpi_driver_data(device); |
1da177e4 LT |
1263 | |
1264 | if (!acpi_device_dir(device)) { | |
1265 | acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), | |
4be44fcd | 1266 | acpi_video_dir); |
1da177e4 | 1267 | if (!acpi_device_dir(device)) |
d550d98d | 1268 | return -ENODEV; |
1da177e4 LT |
1269 | video->dir = acpi_device_dir(device); |
1270 | acpi_device_dir(device)->owner = THIS_MODULE; | |
1271 | } | |
1272 | ||
1273 | /* 'info' [R] */ | |
1274 | entry = create_proc_entry("info", S_IRUGO, acpi_device_dir(device)); | |
1275 | if (!entry) | |
d550d98d | 1276 | return -ENODEV; |
1da177e4 LT |
1277 | else { |
1278 | entry->proc_fops = &acpi_video_bus_info_fops; | |
1279 | entry->data = acpi_driver_data(device); | |
1280 | entry->owner = THIS_MODULE; | |
1281 | } | |
1282 | ||
1283 | /* 'ROM' [R] */ | |
1284 | entry = create_proc_entry("ROM", S_IRUGO, acpi_device_dir(device)); | |
1285 | if (!entry) | |
d550d98d | 1286 | return -ENODEV; |
1da177e4 LT |
1287 | else { |
1288 | entry->proc_fops = &acpi_video_bus_ROM_fops; | |
1289 | entry->data = acpi_driver_data(device); | |
1290 | entry->owner = THIS_MODULE; | |
1291 | } | |
1292 | ||
1293 | /* 'POST_info' [R] */ | |
4be44fcd LB |
1294 | entry = |
1295 | create_proc_entry("POST_info", S_IRUGO, acpi_device_dir(device)); | |
1da177e4 | 1296 | if (!entry) |
d550d98d | 1297 | return -ENODEV; |
1da177e4 LT |
1298 | else { |
1299 | entry->proc_fops = &acpi_video_bus_POST_info_fops; | |
1300 | entry->data = acpi_driver_data(device); | |
1301 | entry->owner = THIS_MODULE; | |
1302 | } | |
1303 | ||
1304 | /* 'POST' [R/W] */ | |
4be44fcd LB |
1305 | entry = |
1306 | create_proc_entry("POST", S_IFREG | S_IRUGO | S_IRUSR, | |
1307 | acpi_device_dir(device)); | |
1da177e4 | 1308 | if (!entry) |
d550d98d | 1309 | return -ENODEV; |
1da177e4 | 1310 | else { |
d479e908 | 1311 | acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST; |
1da177e4 | 1312 | entry->proc_fops = &acpi_video_bus_POST_fops; |
1da177e4 LT |
1313 | entry->data = acpi_driver_data(device); |
1314 | entry->owner = THIS_MODULE; | |
1315 | } | |
1316 | ||
1317 | /* 'DOS' [R/W] */ | |
4be44fcd LB |
1318 | entry = |
1319 | create_proc_entry("DOS", S_IFREG | S_IRUGO | S_IRUSR, | |
1320 | acpi_device_dir(device)); | |
1da177e4 | 1321 | if (!entry) |
d550d98d | 1322 | return -ENODEV; |
1da177e4 | 1323 | else { |
d479e908 | 1324 | acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS; |
1da177e4 | 1325 | entry->proc_fops = &acpi_video_bus_DOS_fops; |
1da177e4 LT |
1326 | entry->data = acpi_driver_data(device); |
1327 | entry->owner = THIS_MODULE; | |
1328 | } | |
1329 | ||
d550d98d | 1330 | return 0; |
1da177e4 LT |
1331 | } |
1332 | ||
4be44fcd | 1333 | static int acpi_video_bus_remove_fs(struct acpi_device *device) |
1da177e4 | 1334 | { |
4be44fcd | 1335 | struct acpi_video_bus *video; |
1da177e4 | 1336 | |
1da177e4 | 1337 | |
50dd0969 | 1338 | video = acpi_driver_data(device); |
1da177e4 LT |
1339 | |
1340 | if (acpi_device_dir(device)) { | |
1341 | remove_proc_entry("info", acpi_device_dir(device)); | |
1342 | remove_proc_entry("ROM", acpi_device_dir(device)); | |
1343 | remove_proc_entry("POST_info", acpi_device_dir(device)); | |
1344 | remove_proc_entry("POST", acpi_device_dir(device)); | |
1345 | remove_proc_entry("DOS", acpi_device_dir(device)); | |
4be44fcd | 1346 | remove_proc_entry(acpi_device_bid(device), acpi_video_dir); |
1da177e4 LT |
1347 | acpi_device_dir(device) = NULL; |
1348 | } | |
1349 | ||
d550d98d | 1350 | return 0; |
1da177e4 LT |
1351 | } |
1352 | ||
1353 | /* -------------------------------------------------------------------------- | |
1354 | Driver Interface | |
1355 | -------------------------------------------------------------------------- */ | |
1356 | ||
1357 | /* device interface */ | |
82cae999 RZ |
1358 | static struct acpi_video_device_attrib* |
1359 | acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id) | |
1360 | { | |
1361 | int count; | |
1362 | ||
1363 | for(count = 0; count < video->attached_count; count++) | |
1364 | if((video->attached_array[count].value.int_val & 0xffff) == device_id) | |
1365 | return &(video->attached_array[count].value.attrib); | |
1366 | return NULL; | |
1367 | } | |
1da177e4 LT |
1368 | |
1369 | static int | |
4be44fcd LB |
1370 | acpi_video_bus_get_one_device(struct acpi_device *device, |
1371 | struct acpi_video_bus *video) | |
1da177e4 | 1372 | { |
4be44fcd | 1373 | unsigned long device_id; |
973bf491 | 1374 | int status; |
4be44fcd | 1375 | struct acpi_video_device *data; |
82cae999 | 1376 | struct acpi_video_device_attrib* attribute; |
1da177e4 LT |
1377 | |
1378 | if (!device || !video) | |
d550d98d | 1379 | return -EINVAL; |
1da177e4 | 1380 | |
4be44fcd LB |
1381 | status = |
1382 | acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id); | |
1da177e4 LT |
1383 | if (ACPI_SUCCESS(status)) { |
1384 | ||
36bcbec7 | 1385 | data = kzalloc(sizeof(struct acpi_video_device), GFP_KERNEL); |
1da177e4 | 1386 | if (!data) |
d550d98d | 1387 | return -ENOMEM; |
1da177e4 | 1388 | |
1da177e4 LT |
1389 | strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME); |
1390 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); | |
1391 | acpi_driver_data(device) = data; | |
1392 | ||
1393 | data->device_id = device_id; | |
1394 | data->video = video; | |
1395 | data->dev = device; | |
1396 | ||
82cae999 RZ |
1397 | attribute = acpi_video_get_device_attr(video, device_id); |
1398 | ||
1399 | if((attribute != NULL) && attribute->device_id_scheme) { | |
1400 | switch (attribute->display_type) { | |
1401 | case ACPI_VIDEO_DISPLAY_CRT: | |
1402 | data->flags.crt = 1; | |
1403 | break; | |
1404 | case ACPI_VIDEO_DISPLAY_TV: | |
1405 | data->flags.tvout = 1; | |
1406 | break; | |
1407 | case ACPI_VIDEO_DISPLAY_DVI: | |
1408 | data->flags.dvi = 1; | |
1409 | break; | |
1410 | case ACPI_VIDEO_DISPLAY_LCD: | |
1411 | data->flags.lcd = 1; | |
1412 | break; | |
1413 | default: | |
1414 | data->flags.unknown = 1; | |
1415 | break; | |
1416 | } | |
1417 | if(attribute->bios_can_detect) | |
1418 | data->flags.bios = 1; | |
1419 | } else | |
1da177e4 | 1420 | data->flags.unknown = 1; |
4be44fcd | 1421 | |
1da177e4 LT |
1422 | acpi_video_device_bind(video, data); |
1423 | acpi_video_device_find_cap(data); | |
1424 | ||
90130268 | 1425 | status = acpi_install_notify_handler(device->handle, |
4be44fcd LB |
1426 | ACPI_DEVICE_NOTIFY, |
1427 | acpi_video_device_notify, | |
1428 | data); | |
1da177e4 LT |
1429 | if (ACPI_FAILURE(status)) { |
1430 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, | |
4be44fcd | 1431 | "Error installing notify handler\n")); |
973bf491 YL |
1432 | if(data->brightness) |
1433 | kfree(data->brightness->levels); | |
1434 | kfree(data->brightness); | |
1435 | kfree(data); | |
1436 | return -ENODEV; | |
1da177e4 LT |
1437 | } |
1438 | ||
1439 | down(&video->sem); | |
1440 | list_add_tail(&data->entry, &video->video_device_list); | |
1441 | up(&video->sem); | |
1442 | ||
1443 | acpi_video_device_add_fs(device); | |
1444 | ||
d550d98d | 1445 | return 0; |
1da177e4 LT |
1446 | } |
1447 | ||
d550d98d | 1448 | return -ENOENT; |
1da177e4 LT |
1449 | } |
1450 | ||
1451 | /* | |
1452 | * Arg: | |
1453 | * video : video bus device | |
1454 | * | |
1455 | * Return: | |
1456 | * none | |
1457 | * | |
1458 | * Enumerate the video device list of the video bus, | |
1459 | * bind the ids with the corresponding video devices | |
1460 | * under the video bus. | |
4be44fcd | 1461 | */ |
1da177e4 | 1462 | |
4be44fcd | 1463 | static void acpi_video_device_rebind(struct acpi_video_bus *video) |
1da177e4 | 1464 | { |
4be44fcd | 1465 | struct list_head *node, *next; |
1da177e4 | 1466 | list_for_each_safe(node, next, &video->video_device_list) { |
4be44fcd LB |
1467 | struct acpi_video_device *dev = |
1468 | container_of(node, struct acpi_video_device, entry); | |
1469 | acpi_video_device_bind(video, dev); | |
1da177e4 LT |
1470 | } |
1471 | } | |
1472 | ||
1473 | /* | |
1474 | * Arg: | |
1475 | * video : video bus device | |
1476 | * device : video output device under the video | |
1477 | * bus | |
1478 | * | |
1479 | * Return: | |
1480 | * none | |
1481 | * | |
1482 | * Bind the ids with the corresponding video devices | |
1483 | * under the video bus. | |
4be44fcd | 1484 | */ |
1da177e4 LT |
1485 | |
1486 | static void | |
4be44fcd LB |
1487 | acpi_video_device_bind(struct acpi_video_bus *video, |
1488 | struct acpi_video_device *device) | |
1da177e4 | 1489 | { |
4be44fcd | 1490 | int i; |
1da177e4 LT |
1491 | |
1492 | #define IDS_VAL(i) video->attached_array[i].value.int_val | |
1493 | #define IDS_BIND(i) video->attached_array[i].bind_info | |
4be44fcd LB |
1494 | |
1495 | for (i = 0; IDS_VAL(i) != ACPI_VIDEO_HEAD_INVALID && | |
1496 | i < video->attached_count; i++) { | |
1497 | if (device->device_id == (IDS_VAL(i) & 0xffff)) { | |
1da177e4 LT |
1498 | IDS_BIND(i) = device; |
1499 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "device_bind %d\n", i)); | |
1500 | } | |
1501 | } | |
1502 | #undef IDS_VAL | |
1503 | #undef IDS_BIND | |
1504 | } | |
1505 | ||
1506 | /* | |
1507 | * Arg: | |
1508 | * video : video bus device | |
1509 | * | |
1510 | * Return: | |
1511 | * < 0 : error | |
1512 | * | |
1513 | * Call _DOD to enumerate all devices attached to display adapter | |
1514 | * | |
4be44fcd | 1515 | */ |
1da177e4 LT |
1516 | |
1517 | static int acpi_video_device_enumerate(struct acpi_video_bus *video) | |
1518 | { | |
4be44fcd LB |
1519 | int status; |
1520 | int count; | |
1521 | int i; | |
1da177e4 | 1522 | struct acpi_video_enumerated_device *active_device_list; |
4be44fcd LB |
1523 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
1524 | union acpi_object *dod = NULL; | |
1525 | union acpi_object *obj; | |
1da177e4 | 1526 | |
90130268 | 1527 | status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer); |
1da177e4 | 1528 | if (!ACPI_SUCCESS(status)) { |
a6fc6720 | 1529 | ACPI_EXCEPTION((AE_INFO, status, "Evaluating _DOD")); |
d550d98d | 1530 | return status; |
1da177e4 LT |
1531 | } |
1532 | ||
50dd0969 | 1533 | dod = buffer.pointer; |
1da177e4 | 1534 | if (!dod || (dod->type != ACPI_TYPE_PACKAGE)) { |
a6fc6720 | 1535 | ACPI_EXCEPTION((AE_INFO, status, "Invalid _DOD data")); |
1da177e4 LT |
1536 | status = -EFAULT; |
1537 | goto out; | |
1538 | } | |
1539 | ||
1540 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d video heads in _DOD\n", | |
4be44fcd | 1541 | dod->package.count)); |
1da177e4 | 1542 | |
4be44fcd LB |
1543 | active_device_list = kmalloc((1 + |
1544 | dod->package.count) * | |
1545 | sizeof(struct | |
1546 | acpi_video_enumerated_device), | |
1547 | GFP_KERNEL); | |
1da177e4 LT |
1548 | |
1549 | if (!active_device_list) { | |
1550 | status = -ENOMEM; | |
1551 | goto out; | |
1552 | } | |
1553 | ||
1554 | count = 0; | |
1555 | for (i = 0; i < dod->package.count; i++) { | |
50dd0969 | 1556 | obj = &dod->package.elements[i]; |
1da177e4 LT |
1557 | |
1558 | if (obj->type != ACPI_TYPE_INTEGER) { | |
6468463a | 1559 | printk(KERN_ERR PREFIX "Invalid _DOD data\n"); |
4be44fcd LB |
1560 | active_device_list[i].value.int_val = |
1561 | ACPI_VIDEO_HEAD_INVALID; | |
1da177e4 LT |
1562 | } |
1563 | active_device_list[i].value.int_val = obj->integer.value; | |
1564 | active_device_list[i].bind_info = NULL; | |
4be44fcd LB |
1565 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "dod element[%d] = %d\n", i, |
1566 | (int)obj->integer.value)); | |
1da177e4 LT |
1567 | count++; |
1568 | } | |
1569 | active_device_list[count].value.int_val = ACPI_VIDEO_HEAD_END; | |
1570 | ||
6044ec88 | 1571 | kfree(video->attached_array); |
4be44fcd | 1572 | |
1da177e4 LT |
1573 | video->attached_array = active_device_list; |
1574 | video->attached_count = count; | |
4be44fcd | 1575 | out: |
02438d87 | 1576 | kfree(buffer.pointer); |
d550d98d | 1577 | return status; |
1da177e4 LT |
1578 | } |
1579 | ||
1580 | /* | |
1581 | * Arg: | |
1582 | * video : video bus device | |
98fb8fe1 | 1583 | * event : notify event |
1da177e4 LT |
1584 | * |
1585 | * Return: | |
1586 | * < 0 : error | |
1587 | * | |
1588 | * 1. Find out the current active output device. | |
98fb8fe1 | 1589 | * 2. Identify the next output device to switch to. |
1da177e4 | 1590 | * 3. call _DSS to do actual switch. |
4be44fcd | 1591 | */ |
1da177e4 | 1592 | |
4be44fcd | 1593 | static int acpi_video_switch_output(struct acpi_video_bus *video, int event) |
1da177e4 | 1594 | { |
4be44fcd LB |
1595 | struct list_head *node, *next; |
1596 | struct acpi_video_device *dev = NULL; | |
1597 | struct acpi_video_device *dev_next = NULL; | |
1598 | struct acpi_video_device *dev_prev = NULL; | |
1da177e4 LT |
1599 | unsigned long state; |
1600 | int status = 0; | |
1601 | ||
1da177e4 LT |
1602 | |
1603 | list_for_each_safe(node, next, &video->video_device_list) { | |
7334571f | 1604 | dev = container_of(node, struct acpi_video_device, entry); |
1da177e4 | 1605 | status = acpi_video_device_get_state(dev, &state); |
4be44fcd LB |
1606 | if (state & 0x2) { |
1607 | dev_next = | |
1608 | container_of(node->next, struct acpi_video_device, | |
1609 | entry); | |
1610 | dev_prev = | |
1611 | container_of(node->prev, struct acpi_video_device, | |
1612 | entry); | |
1da177e4 LT |
1613 | goto out; |
1614 | } | |
1615 | } | |
1616 | dev_next = container_of(node->next, struct acpi_video_device, entry); | |
1617 | dev_prev = container_of(node->prev, struct acpi_video_device, entry); | |
4be44fcd | 1618 | out: |
1da177e4 LT |
1619 | switch (event) { |
1620 | case ACPI_VIDEO_NOTIFY_CYCLE: | |
1621 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: | |
1622 | acpi_video_device_set_state(dev, 0); | |
1623 | acpi_video_device_set_state(dev_next, 0x80000001); | |
1624 | break; | |
1625 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: | |
1626 | acpi_video_device_set_state(dev, 0); | |
1627 | acpi_video_device_set_state(dev_prev, 0x80000001); | |
1628 | default: | |
1629 | break; | |
1630 | } | |
1631 | ||
d550d98d | 1632 | return status; |
1da177e4 LT |
1633 | } |
1634 | ||
4be44fcd LB |
1635 | static int |
1636 | acpi_video_get_next_level(struct acpi_video_device *device, | |
1637 | u32 level_current, u32 event) | |
1da177e4 | 1638 | { |
63f0edfc | 1639 | int min, max, min_above, max_below, i, l, delta = 255; |
f4715189 TT |
1640 | max = max_below = 0; |
1641 | min = min_above = 255; | |
63f0edfc AS |
1642 | /* Find closest level to level_current */ |
1643 | for (i = 0; i < device->brightness->count; i++) { | |
1644 | l = device->brightness->levels[i]; | |
1645 | if (abs(l - level_current) < abs(delta)) { | |
1646 | delta = l - level_current; | |
1647 | if (!delta) | |
1648 | break; | |
1649 | } | |
1650 | } | |
1651 | /* Ajust level_current to closest available level */ | |
1652 | level_current += delta; | |
f4715189 TT |
1653 | for (i = 0; i < device->brightness->count; i++) { |
1654 | l = device->brightness->levels[i]; | |
1655 | if (l < min) | |
1656 | min = l; | |
1657 | if (l > max) | |
1658 | max = l; | |
1659 | if (l < min_above && l > level_current) | |
1660 | min_above = l; | |
1661 | if (l > max_below && l < level_current) | |
1662 | max_below = l; | |
1663 | } | |
1664 | ||
1665 | switch (event) { | |
1666 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: | |
1667 | return (level_current < max) ? min_above : min; | |
1668 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: | |
1669 | return (level_current < max) ? min_above : max; | |
1670 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: | |
1671 | return (level_current > min) ? max_below : min; | |
1672 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: | |
1673 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: | |
1674 | return 0; | |
1675 | default: | |
1676 | return level_current; | |
1677 | } | |
1da177e4 LT |
1678 | } |
1679 | ||
1da177e4 | 1680 | static void |
4be44fcd | 1681 | acpi_video_switch_brightness(struct acpi_video_device *device, int event) |
1da177e4 LT |
1682 | { |
1683 | unsigned long level_current, level_next; | |
1684 | acpi_video_device_lcd_get_level_current(device, &level_current); | |
1685 | level_next = acpi_video_get_next_level(device, level_current, event); | |
1686 | acpi_video_device_lcd_set_level(device, level_next); | |
1687 | } | |
1688 | ||
1689 | static int | |
4be44fcd LB |
1690 | acpi_video_bus_get_devices(struct acpi_video_bus *video, |
1691 | struct acpi_device *device) | |
1da177e4 | 1692 | { |
4be44fcd LB |
1693 | int status = 0; |
1694 | struct list_head *node, *next; | |
1da177e4 | 1695 | |
1da177e4 LT |
1696 | |
1697 | acpi_video_device_enumerate(video); | |
1698 | ||
1699 | list_for_each_safe(node, next, &device->children) { | |
4be44fcd LB |
1700 | struct acpi_device *dev = |
1701 | list_entry(node, struct acpi_device, node); | |
1da177e4 LT |
1702 | |
1703 | if (!dev) | |
1704 | continue; | |
1705 | ||
1706 | status = acpi_video_bus_get_one_device(dev, video); | |
1707 | if (ACPI_FAILURE(status)) { | |
a6fc6720 | 1708 | ACPI_EXCEPTION((AE_INFO, status, "Cant attach device")); |
1da177e4 LT |
1709 | continue; |
1710 | } | |
1711 | ||
1712 | } | |
d550d98d | 1713 | return status; |
1da177e4 LT |
1714 | } |
1715 | ||
4be44fcd | 1716 | static int acpi_video_bus_put_one_device(struct acpi_video_device *device) |
1da177e4 | 1717 | { |
031ec77b | 1718 | acpi_status status; |
1da177e4 LT |
1719 | struct acpi_video_bus *video; |
1720 | ||
1da177e4 LT |
1721 | |
1722 | if (!device || !device->video) | |
d550d98d | 1723 | return -ENOENT; |
1da177e4 LT |
1724 | |
1725 | video = device->video; | |
1726 | ||
1727 | down(&video->sem); | |
1728 | list_del(&device->entry); | |
1729 | up(&video->sem); | |
1730 | acpi_video_device_remove_fs(device->dev); | |
1731 | ||
90130268 | 1732 | status = acpi_remove_notify_handler(device->dev->handle, |
4be44fcd LB |
1733 | ACPI_DEVICE_NOTIFY, |
1734 | acpi_video_device_notify); | |
599a52d1 | 1735 | backlight_device_unregister(device->backlight); |
23b0f015 | 1736 | video_output_unregister(device->output_dev); |
d550d98d | 1737 | return 0; |
1da177e4 LT |
1738 | } |
1739 | ||
4be44fcd | 1740 | static int acpi_video_bus_put_devices(struct acpi_video_bus *video) |
1da177e4 | 1741 | { |
4be44fcd LB |
1742 | int status; |
1743 | struct list_head *node, *next; | |
1da177e4 | 1744 | |
1da177e4 LT |
1745 | |
1746 | list_for_each_safe(node, next, &video->video_device_list) { | |
4be44fcd LB |
1747 | struct acpi_video_device *data = |
1748 | list_entry(node, struct acpi_video_device, entry); | |
1da177e4 LT |
1749 | if (!data) |
1750 | continue; | |
1751 | ||
1752 | status = acpi_video_bus_put_one_device(data); | |
4be44fcd LB |
1753 | if (ACPI_FAILURE(status)) |
1754 | printk(KERN_WARNING PREFIX | |
1755 | "hhuuhhuu bug in acpi video driver.\n"); | |
1da177e4 | 1756 | |
d384ea69 | 1757 | if (data->brightness) |
973bf491 | 1758 | kfree(data->brightness->levels); |
6044ec88 | 1759 | kfree(data->brightness); |
1da177e4 LT |
1760 | kfree(data); |
1761 | } | |
1762 | ||
d550d98d | 1763 | return 0; |
1da177e4 LT |
1764 | } |
1765 | ||
1766 | /* acpi_video interface */ | |
1767 | ||
4be44fcd | 1768 | static int acpi_video_bus_start_devices(struct acpi_video_bus *video) |
1da177e4 | 1769 | { |
a21101c4 | 1770 | return acpi_video_bus_DOS(video, 0, 0); |
1da177e4 LT |
1771 | } |
1772 | ||
4be44fcd | 1773 | static int acpi_video_bus_stop_devices(struct acpi_video_bus *video) |
1da177e4 LT |
1774 | { |
1775 | return acpi_video_bus_DOS(video, 0, 1); | |
1776 | } | |
1777 | ||
4be44fcd | 1778 | static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 1779 | { |
50dd0969 | 1780 | struct acpi_video_bus *video = data; |
4be44fcd | 1781 | struct acpi_device *device = NULL; |
e9dab196 LY |
1782 | struct input_dev *input; |
1783 | int keycode; | |
1784 | ||
1da177e4 | 1785 | |
1da177e4 LT |
1786 | printk("video bus notify\n"); |
1787 | ||
1788 | if (!video) | |
d550d98d | 1789 | return; |
1da177e4 | 1790 | |
e6afa0de | 1791 | device = video->device; |
e9dab196 | 1792 | input = video->input; |
1da177e4 LT |
1793 | |
1794 | switch (event) { | |
98fb8fe1 | 1795 | case ACPI_VIDEO_NOTIFY_SWITCH: /* User requested a switch, |
1da177e4 | 1796 | * most likely via hotkey. */ |
14e04fb3 | 1797 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1798 | keycode = KEY_SWITCHVIDEOMODE; |
1da177e4 LT |
1799 | break; |
1800 | ||
98fb8fe1 | 1801 | case ACPI_VIDEO_NOTIFY_PROBE: /* User plugged in or removed a video |
1da177e4 LT |
1802 | * connector. */ |
1803 | acpi_video_device_enumerate(video); | |
1804 | acpi_video_device_rebind(video); | |
1805 | acpi_video_switch_output(video, event); | |
14e04fb3 | 1806 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1807 | keycode = KEY_SWITCHVIDEOMODE; |
1da177e4 LT |
1808 | break; |
1809 | ||
4be44fcd | 1810 | case ACPI_VIDEO_NOTIFY_CYCLE: /* Cycle Display output hotkey pressed. */ |
e9dab196 | 1811 | acpi_video_switch_output(video, event); |
25c87f7f | 1812 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1813 | keycode = KEY_SWITCHVIDEOMODE; |
1814 | break; | |
4be44fcd | 1815 | case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: /* Next Display output hotkey pressed. */ |
e9dab196 | 1816 | acpi_video_switch_output(video, event); |
25c87f7f | 1817 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1818 | keycode = KEY_VIDEO_NEXT; |
1819 | break; | |
4be44fcd | 1820 | case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: /* previous Display output hotkey pressed. */ |
1da177e4 | 1821 | acpi_video_switch_output(video, event); |
14e04fb3 | 1822 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1823 | keycode = KEY_VIDEO_PREV; |
1da177e4 LT |
1824 | break; |
1825 | ||
1826 | default: | |
e9dab196 | 1827 | keycode = KEY_UNKNOWN; |
1da177e4 | 1828 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
4be44fcd | 1829 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
1830 | break; |
1831 | } | |
1832 | ||
e9dab196 LY |
1833 | input_report_key(input, keycode, 1); |
1834 | input_sync(input); | |
1835 | input_report_key(input, keycode, 0); | |
1836 | input_sync(input); | |
1837 | ||
d550d98d | 1838 | return; |
1da177e4 LT |
1839 | } |
1840 | ||
4be44fcd | 1841 | static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) |
1da177e4 | 1842 | { |
50dd0969 | 1843 | struct acpi_video_device *video_device = data; |
4be44fcd | 1844 | struct acpi_device *device = NULL; |
e9dab196 LY |
1845 | struct acpi_video_bus *bus; |
1846 | struct input_dev *input; | |
1847 | int keycode; | |
1da177e4 | 1848 | |
1da177e4 | 1849 | if (!video_device) |
d550d98d | 1850 | return; |
1da177e4 | 1851 | |
e6afa0de | 1852 | device = video_device->dev; |
e9dab196 LY |
1853 | bus = video_device->video; |
1854 | input = bus->input; | |
1da177e4 LT |
1855 | |
1856 | switch (event) { | |
4be44fcd | 1857 | case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */ |
e9dab196 | 1858 | acpi_video_switch_brightness(video_device, event); |
14e04fb3 | 1859 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1860 | keycode = KEY_BRIGHTNESS_CYCLE; |
1861 | break; | |
4be44fcd | 1862 | case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: /* Increase brightness */ |
e9dab196 | 1863 | acpi_video_switch_brightness(video_device, event); |
25c87f7f | 1864 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1865 | keycode = KEY_BRIGHTNESSUP; |
1866 | break; | |
4be44fcd | 1867 | case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: /* Decrease brightness */ |
e9dab196 | 1868 | acpi_video_switch_brightness(video_device, event); |
25c87f7f | 1869 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1870 | keycode = KEY_BRIGHTNESSDOWN; |
1871 | break; | |
4be44fcd | 1872 | case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightnesss */ |
e9dab196 | 1873 | acpi_video_switch_brightness(video_device, event); |
25c87f7f | 1874 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 LY |
1875 | keycode = KEY_BRIGHTNESS_ZERO; |
1876 | break; | |
4be44fcd LB |
1877 | case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: /* display device off */ |
1878 | acpi_video_switch_brightness(video_device, event); | |
14e04fb3 | 1879 | acpi_bus_generate_proc_event(device, event, 0); |
e9dab196 | 1880 | keycode = KEY_DISPLAY_OFF; |
1da177e4 LT |
1881 | break; |
1882 | default: | |
e9dab196 | 1883 | keycode = KEY_UNKNOWN; |
1da177e4 | 1884 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
4be44fcd | 1885 | "Unsupported event [0x%x]\n", event)); |
1da177e4 LT |
1886 | break; |
1887 | } | |
e9dab196 LY |
1888 | |
1889 | input_report_key(input, keycode, 1); | |
1890 | input_sync(input); | |
1891 | input_report_key(input, keycode, 0); | |
1892 | input_sync(input); | |
1893 | ||
d550d98d | 1894 | return; |
1da177e4 LT |
1895 | } |
1896 | ||
e6d9da1d | 1897 | static int instance; |
4be44fcd | 1898 | static int acpi_video_bus_add(struct acpi_device *device) |
1da177e4 | 1899 | { |
4be44fcd LB |
1900 | int result = 0; |
1901 | acpi_status status = 0; | |
1902 | struct acpi_video_bus *video = NULL; | |
e9dab196 | 1903 | struct input_dev *input; |
1da177e4 | 1904 | |
4be44fcd | 1905 | |
1da177e4 | 1906 | if (!device) |
d550d98d | 1907 | return -EINVAL; |
1da177e4 | 1908 | |
36bcbec7 | 1909 | video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL); |
1da177e4 | 1910 | if (!video) |
d550d98d | 1911 | return -ENOMEM; |
1da177e4 | 1912 | |
e6d9da1d ZR |
1913 | /* a hack to fix the duplicate name "VID" problem on T61 */ |
1914 | if (!strcmp(device->pnp.bus_id, "VID")) { | |
1915 | if (instance) | |
1916 | device->pnp.bus_id[3] = '0' + instance; | |
1917 | instance ++; | |
1918 | } | |
1919 | ||
e6afa0de | 1920 | video->device = device; |
1da177e4 LT |
1921 | strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME); |
1922 | strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS); | |
1923 | acpi_driver_data(device) = video; | |
1924 | ||
1925 | acpi_video_bus_find_cap(video); | |
1926 | result = acpi_video_bus_check(video); | |
1927 | if (result) | |
1928 | goto end; | |
1929 | ||
1930 | result = acpi_video_bus_add_fs(device); | |
1931 | if (result) | |
1932 | goto end; | |
1933 | ||
1934 | init_MUTEX(&video->sem); | |
1935 | INIT_LIST_HEAD(&video->video_device_list); | |
1936 | ||
1937 | acpi_video_bus_get_devices(video, device); | |
1938 | acpi_video_bus_start_devices(video); | |
1939 | ||
90130268 | 1940 | status = acpi_install_notify_handler(device->handle, |
4be44fcd LB |
1941 | ACPI_DEVICE_NOTIFY, |
1942 | acpi_video_bus_notify, video); | |
1da177e4 LT |
1943 | if (ACPI_FAILURE(status)) { |
1944 | ACPI_DEBUG_PRINT((ACPI_DB_ERROR, | |
4be44fcd | 1945 | "Error installing notify handler\n")); |
973bf491 YL |
1946 | acpi_video_bus_stop_devices(video); |
1947 | acpi_video_bus_put_devices(video); | |
1948 | kfree(video->attached_array); | |
1949 | acpi_video_bus_remove_fs(device); | |
1da177e4 LT |
1950 | result = -ENODEV; |
1951 | goto end; | |
1952 | } | |
1953 | ||
e9dab196 LY |
1954 | |
1955 | video->input = input = input_allocate_device(); | |
1956 | ||
1957 | snprintf(video->phys, sizeof(video->phys), | |
1958 | "%s/video/input0", acpi_device_hid(video->device)); | |
1959 | ||
1960 | input->name = acpi_device_name(video->device); | |
1961 | input->phys = video->phys; | |
1962 | input->id.bustype = BUS_HOST; | |
1963 | input->id.product = 0x06; | |
1964 | input->evbit[0] = BIT(EV_KEY); | |
1965 | set_bit(KEY_SWITCHVIDEOMODE, input->keybit); | |
1966 | set_bit(KEY_VIDEO_NEXT, input->keybit); | |
1967 | set_bit(KEY_VIDEO_PREV, input->keybit); | |
1968 | set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit); | |
1969 | set_bit(KEY_BRIGHTNESSUP, input->keybit); | |
1970 | set_bit(KEY_BRIGHTNESSDOWN, input->keybit); | |
1971 | set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); | |
1972 | set_bit(KEY_DISPLAY_OFF, input->keybit); | |
1973 | set_bit(KEY_UNKNOWN, input->keybit); | |
1974 | result = input_register_device(input); | |
1975 | if (result) { | |
1976 | acpi_remove_notify_handler(video->device->handle, | |
1977 | ACPI_DEVICE_NOTIFY, | |
1978 | acpi_video_bus_notify); | |
1979 | acpi_video_bus_stop_devices(video); | |
1980 | acpi_video_bus_put_devices(video); | |
1981 | kfree(video->attached_array); | |
1982 | acpi_video_bus_remove_fs(device); | |
1983 | goto end; | |
1984 | } | |
1985 | ||
1986 | ||
1da177e4 | 1987 | printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", |
4be44fcd LB |
1988 | ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device), |
1989 | video->flags.multihead ? "yes" : "no", | |
1990 | video->flags.rom ? "yes" : "no", | |
1991 | video->flags.post ? "yes" : "no"); | |
1da177e4 | 1992 | |
4be44fcd | 1993 | end: |
973bf491 | 1994 | if (result) |
1da177e4 | 1995 | kfree(video); |
1da177e4 | 1996 | |
d550d98d | 1997 | return result; |
1da177e4 LT |
1998 | } |
1999 | ||
4be44fcd | 2000 | static int acpi_video_bus_remove(struct acpi_device *device, int type) |
1da177e4 | 2001 | { |
4be44fcd LB |
2002 | acpi_status status = 0; |
2003 | struct acpi_video_bus *video = NULL; | |
1da177e4 | 2004 | |
1da177e4 LT |
2005 | |
2006 | if (!device || !acpi_driver_data(device)) | |
d550d98d | 2007 | return -EINVAL; |
1da177e4 | 2008 | |
50dd0969 | 2009 | video = acpi_driver_data(device); |
1da177e4 LT |
2010 | |
2011 | acpi_video_bus_stop_devices(video); | |
2012 | ||
90130268 | 2013 | status = acpi_remove_notify_handler(video->device->handle, |
4be44fcd LB |
2014 | ACPI_DEVICE_NOTIFY, |
2015 | acpi_video_bus_notify); | |
1da177e4 LT |
2016 | |
2017 | acpi_video_bus_put_devices(video); | |
2018 | acpi_video_bus_remove_fs(device); | |
2019 | ||
e9dab196 | 2020 | input_unregister_device(video->input); |
6044ec88 | 2021 | kfree(video->attached_array); |
1da177e4 LT |
2022 | kfree(video); |
2023 | ||
d550d98d | 2024 | return 0; |
1da177e4 LT |
2025 | } |
2026 | ||
4be44fcd | 2027 | static int __init acpi_video_init(void) |
1da177e4 | 2028 | { |
4be44fcd | 2029 | int result = 0; |
1da177e4 | 2030 | |
1da177e4 LT |
2031 | |
2032 | /* | |
4be44fcd LB |
2033 | acpi_dbg_level = 0xFFFFFFFF; |
2034 | acpi_dbg_layer = 0x08000000; | |
2035 | */ | |
1da177e4 LT |
2036 | |
2037 | acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir); | |
2038 | if (!acpi_video_dir) | |
d550d98d | 2039 | return -ENODEV; |
1da177e4 LT |
2040 | acpi_video_dir->owner = THIS_MODULE; |
2041 | ||
2042 | result = acpi_bus_register_driver(&acpi_video_bus); | |
2043 | if (result < 0) { | |
2044 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); | |
d550d98d | 2045 | return -ENODEV; |
1da177e4 LT |
2046 | } |
2047 | ||
d550d98d | 2048 | return 0; |
1da177e4 LT |
2049 | } |
2050 | ||
4be44fcd | 2051 | static void __exit acpi_video_exit(void) |
1da177e4 | 2052 | { |
1da177e4 LT |
2053 | |
2054 | acpi_bus_unregister_driver(&acpi_video_bus); | |
2055 | ||
2056 | remove_proc_entry(ACPI_VIDEO_CLASS, acpi_root_dir); | |
2057 | ||
d550d98d | 2058 | return; |
1da177e4 LT |
2059 | } |
2060 | ||
2061 | module_init(acpi_video_init); | |
2062 | module_exit(acpi_video_exit); |