Commit | Line | Data |
---|---|---|
c3d6de69 | 1 | /* |
87521e16 HG |
2 | * Copyright (C) 2015 Red Hat Inc. |
3 | * Hans de Goede <hdegoede@redhat.com> | |
c3d6de69 TR |
4 | * Copyright (C) 2008 SuSE Linux Products GmbH |
5 | * Thomas Renninger <trenn@suse.de> | |
6 | * | |
7 | * May be copied or modified under the terms of the GNU General Public License | |
8 | * | |
9 | * video_detect.c: | |
c3d6de69 | 10 | * After PCI devices are glued with ACPI devices |
1e4cffe7 | 11 | * acpi_get_pci_dev() can be called to identify ACPI graphics |
c3d6de69 TR |
12 | * devices for which a real graphics card is plugged in |
13 | * | |
c3d6de69 TR |
14 | * Depending on whether ACPI graphics extensions (cmp. ACPI spec Appendix B) |
15 | * are available, video.ko should be used to handle the device. | |
16 | * | |
7ec48ced | 17 | * Otherwise vendor specific drivers like thinkpad_acpi, asus-laptop, |
677bd810 | 18 | * sony_acpi,... can take care about backlight brightness. |
c3d6de69 | 19 | * |
2600bfa3 HG |
20 | * Backlight drivers can use acpi_video_get_backlight_type() to determine which |
21 | * driver should handle the backlight. RAW/GPU-driver backlight drivers must | |
22 | * use the acpi_video_backlight_use_native() helper for this. | |
c3d6de69 | 23 | * |
87521e16 HG |
24 | * If CONFIG_ACPI_VIDEO is neither set as "compiled in" (y) nor as a module (m) |
25 | * this file will not be compiled and acpi_video_get_backlight_type() will | |
26 | * always return acpi_backlight_vendor. | |
c3d6de69 TR |
27 | */ |
28 | ||
214f2c90 | 29 | #include <linux/export.h> |
c3d6de69 | 30 | #include <linux/acpi.h> |
21245df3 | 31 | #include <linux/apple-gmux.h> |
87521e16 | 32 | #include <linux/backlight.h> |
c3d6de69 | 33 | #include <linux/dmi.h> |
14ca7a47 | 34 | #include <linux/module.h> |
1e4cffe7 | 35 | #include <linux/pci.h> |
fe7aebb4 | 36 | #include <linux/platform_data/x86/nvidia-wmi-ec-backlight.h> |
87521e16 | 37 | #include <linux/types.h> |
7231ed1a | 38 | #include <linux/workqueue.h> |
87521e16 | 39 | #include <acpi/video.h> |
c3d6de69 | 40 | |
87521e16 HG |
41 | static enum acpi_backlight_type acpi_backlight_cmdline = acpi_backlight_undef; |
42 | static enum acpi_backlight_type acpi_backlight_dmi = acpi_backlight_undef; | |
c3d6de69 | 43 | |
14ca7a47 HG |
44 | static void acpi_video_parse_cmdline(void) |
45 | { | |
46 | if (!strcmp("vendor", acpi_video_backlight_string)) | |
87521e16 | 47 | acpi_backlight_cmdline = acpi_backlight_vendor; |
14ca7a47 | 48 | if (!strcmp("video", acpi_video_backlight_string)) |
87521e16 HG |
49 | acpi_backlight_cmdline = acpi_backlight_video; |
50 | if (!strcmp("native", acpi_video_backlight_string)) | |
51 | acpi_backlight_cmdline = acpi_backlight_native; | |
52 | if (!strcmp("none", acpi_video_backlight_string)) | |
53 | acpi_backlight_cmdline = acpi_backlight_none; | |
14ca7a47 HG |
54 | } |
55 | ||
c3d6de69 TR |
56 | static acpi_status |
57 | find_video(acpi_handle handle, u32 lvl, void *context, void **rv) | |
58 | { | |
99ece713 | 59 | struct acpi_device *acpi_dev = acpi_fetch_acpi_dev(handle); |
c3d6de69 | 60 | long *cap = context; |
1e4cffe7 | 61 | struct pci_dev *dev; |
c3d6de69 | 62 | |
4a4f01a6 | 63 | static const struct acpi_device_id video_ids[] = { |
c3d6de69 TR |
64 | {ACPI_VIDEO_HID, 0}, |
65 | {"", 0}, | |
66 | }; | |
c3d6de69 | 67 | |
99ece713 | 68 | if (acpi_dev && !acpi_match_device_ids(acpi_dev, video_ids)) { |
1e4cffe7 | 69 | dev = acpi_get_pci_dev(handle); |
c3d6de69 TR |
70 | if (!dev) |
71 | return AE_OK; | |
1e4cffe7 | 72 | pci_dev_put(dev); |
d4e1a692 | 73 | *cap |= acpi_is_video_device(handle); |
c3d6de69 TR |
74 | } |
75 | return AE_OK; | |
76 | } | |
77 | ||
fe7aebb4 HG |
78 | /* This depends on ACPI_WMI which is X86 only */ |
79 | #ifdef CONFIG_X86 | |
80 | static bool nvidia_wmi_ec_supported(void) | |
81 | { | |
82 | struct wmi_brightness_args args = { | |
83 | .mode = WMI_BRIGHTNESS_MODE_GET, | |
84 | .val = 0, | |
85 | .ret = 0, | |
86 | }; | |
87 | struct acpi_buffer buf = { (acpi_size)sizeof(args), &args }; | |
88 | acpi_status status; | |
89 | ||
90 | status = wmi_evaluate_method(WMI_BRIGHTNESS_GUID, 0, | |
91 | WMI_BRIGHTNESS_METHOD_SOURCE, &buf, &buf); | |
92 | if (ACPI_FAILURE(status)) | |
93 | return false; | |
94 | ||
95 | /* | |
96 | * If brightness is handled by the EC then nvidia-wmi-ec-backlight | |
97 | * should be used, else the GPU driver(s) should be used. | |
98 | */ | |
99 | return args.ret == WMI_BRIGHTNESS_SOURCE_EC; | |
100 | } | |
101 | #else | |
102 | static bool nvidia_wmi_ec_supported(void) | |
103 | { | |
104 | return false; | |
105 | } | |
106 | #endif | |
107 | ||
084940d5 CC |
108 | /* Force to use vendor driver when the ACPI device is known to be |
109 | * buggy */ | |
110 | static int video_detect_force_vendor(const struct dmi_system_id *d) | |
111 | { | |
87521e16 | 112 | acpi_backlight_dmi = acpi_backlight_vendor; |
084940d5 CC |
113 | return 0; |
114 | } | |
115 | ||
3bd6bce3 HG |
116 | static int video_detect_force_video(const struct dmi_system_id *d) |
117 | { | |
118 | acpi_backlight_dmi = acpi_backlight_video; | |
119 | return 0; | |
120 | } | |
121 | ||
122 | static int video_detect_force_native(const struct dmi_system_id *d) | |
123 | { | |
124 | acpi_backlight_dmi = acpi_backlight_native; | |
125 | return 0; | |
126 | } | |
127 | ||
1f59ab27 AH |
128 | static int video_detect_force_none(const struct dmi_system_id *d) |
129 | { | |
130 | acpi_backlight_dmi = acpi_backlight_none; | |
131 | return 0; | |
132 | } | |
133 | ||
4a4f01a6 | 134 | static const struct dmi_system_id video_detect_dmi_table[] = { |
0172df18 HG |
135 | { |
136 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1128309 */ | |
137 | .callback = video_detect_force_vendor, | |
138 | /* Acer KAV80 */ | |
139 | .matches = { | |
140 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
141 | DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"), | |
142 | }, | |
143 | }, | |
d0c2ce16 | 144 | { |
c2d6920e HG |
145 | .callback = video_detect_force_vendor, |
146 | /* Asus UL30VT */ | |
147 | .matches = { | |
d0c2ce16 LT |
148 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
149 | DMI_MATCH(DMI_PRODUCT_NAME, "UL30VT"), | |
150 | }, | |
151 | }, | |
c8f6d835 | 152 | { |
c2d6920e HG |
153 | .callback = video_detect_force_vendor, |
154 | /* Asus UL30A */ | |
155 | .matches = { | |
c8f6d835 BT |
156 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
157 | DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"), | |
158 | }, | |
159 | }, | |
52796b30 HG |
160 | { |
161 | .callback = video_detect_force_vendor, | |
162 | /* Asus X55U */ | |
163 | .matches = { | |
164 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
165 | DMI_MATCH(DMI_PRODUCT_NAME, "X55U"), | |
166 | }, | |
167 | }, | |
168 | { | |
169 | .callback = video_detect_force_vendor, | |
170 | /* Asus X101CH */ | |
171 | .matches = { | |
172 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
173 | DMI_MATCH(DMI_PRODUCT_NAME, "X101CH"), | |
174 | }, | |
175 | }, | |
176 | { | |
177 | .callback = video_detect_force_vendor, | |
178 | /* Asus X401U */ | |
179 | .matches = { | |
180 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
181 | DMI_MATCH(DMI_PRODUCT_NAME, "X401U"), | |
182 | }, | |
183 | }, | |
184 | { | |
185 | .callback = video_detect_force_vendor, | |
186 | /* Asus X501U */ | |
187 | .matches = { | |
188 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
189 | DMI_MATCH(DMI_PRODUCT_NAME, "X501U"), | |
190 | }, | |
191 | }, | |
192 | { | |
193 | .callback = video_detect_force_vendor, | |
194 | /* Asus 1015CX */ | |
195 | .matches = { | |
196 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
197 | DMI_MATCH(DMI_PRODUCT_NAME, "1015CX"), | |
198 | }, | |
199 | }, | |
aefa763b | 200 | { |
c2d6920e HG |
201 | .callback = video_detect_force_vendor, |
202 | /* GIGABYTE GB-BXBT-2807 */ | |
203 | .matches = { | |
25417185 JSP |
204 | DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"), |
205 | DMI_MATCH(DMI_PRODUCT_NAME, "GB-BXBT-2807"), | |
206 | }, | |
207 | }, | |
8991d7d9 HG |
208 | { |
209 | .callback = video_detect_force_vendor, | |
210 | /* Samsung N150/N210/N220 */ | |
211 | .matches = { | |
212 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
213 | DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"), | |
214 | DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"), | |
215 | }, | |
216 | }, | |
217 | { | |
218 | .callback = video_detect_force_vendor, | |
219 | /* Samsung NF110/NF210/NF310 */ | |
220 | .matches = { | |
221 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
222 | DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"), | |
223 | DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"), | |
224 | }, | |
225 | }, | |
226 | { | |
227 | .callback = video_detect_force_vendor, | |
228 | /* Samsung NC210 */ | |
229 | .matches = { | |
230 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
231 | DMI_MATCH(DMI_PRODUCT_NAME, "NC210/NC110"), | |
232 | DMI_MATCH(DMI_BOARD_NAME, "NC210/NC110"), | |
233 | }, | |
234 | }, | |
25417185 | 235 | { |
c2d6920e HG |
236 | .callback = video_detect_force_vendor, |
237 | /* Sony VPCEH3U1E */ | |
238 | .matches = { | |
aefa763b ZR |
239 | DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), |
240 | DMI_MATCH(DMI_PRODUCT_NAME, "VPCEH3U1E"), | |
241 | }, | |
242 | }, | |
60e6655f | 243 | { |
c2d6920e HG |
244 | .callback = video_detect_force_vendor, |
245 | /* Xiaomi Mi Pad 2 */ | |
246 | .matches = { | |
60e6655f HG |
247 | DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"), |
248 | DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"), | |
249 | }, | |
250 | }, | |
3bd6bce3 | 251 | |
a2ed70d0 HG |
252 | /* |
253 | * Toshiba models with Transflective display, these need to use | |
254 | * the toshiba_acpi vendor driver for proper Transflective handling. | |
255 | */ | |
256 | { | |
257 | .callback = video_detect_force_vendor, | |
258 | .matches = { | |
259 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
260 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R500"), | |
261 | }, | |
262 | }, | |
263 | { | |
264 | .callback = video_detect_force_vendor, | |
265 | .matches = { | |
266 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
267 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R600"), | |
268 | }, | |
269 | }, | |
270 | ||
3bd6bce3 HG |
271 | /* |
272 | * These models have a working acpi_video backlight control, and using | |
273 | * native backlight causes a regression where backlight does not work | |
274 | * when userspace is not handling brightness key events. Disable | |
275 | * native_backlight on these to fix this: | |
276 | * https://bugzilla.kernel.org/show_bug.cgi?id=81691 | |
277 | */ | |
278 | { | |
279 | .callback = video_detect_force_video, | |
3b6740bd | 280 | /* ThinkPad T420 */ |
3bd6bce3 HG |
281 | .matches = { |
282 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
283 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T420"), | |
284 | }, | |
285 | }, | |
286 | { | |
287 | .callback = video_detect_force_video, | |
3b6740bd | 288 | /* ThinkPad T520 */ |
3bd6bce3 HG |
289 | .matches = { |
290 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
291 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T520"), | |
292 | }, | |
293 | }, | |
294 | { | |
295 | .callback = video_detect_force_video, | |
3b6740bd | 296 | /* ThinkPad X201s */ |
3bd6bce3 HG |
297 | .matches = { |
298 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
299 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201s"), | |
300 | }, | |
301 | }, | |
c6237b21 ML |
302 | { |
303 | .callback = video_detect_force_video, | |
3b6740bd | 304 | /* ThinkPad X201T */ |
c6237b21 ML |
305 | .matches = { |
306 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
307 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201T"), | |
308 | }, | |
309 | }, | |
3bd6bce3 HG |
310 | |
311 | /* The native backlight controls do not work on some older machines */ | |
312 | { | |
313 | /* https://bugs.freedesktop.org/show_bug.cgi?id=81515 */ | |
314 | .callback = video_detect_force_video, | |
3b6740bd | 315 | /* HP ENVY 15 Notebook */ |
3bd6bce3 HG |
316 | .matches = { |
317 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
318 | DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY 15 Notebook PC"), | |
319 | }, | |
320 | }, | |
321 | { | |
322 | .callback = video_detect_force_video, | |
3b6740bd | 323 | /* SAMSUNG 870Z5E/880Z5E/680Z5E */ |
3bd6bce3 HG |
324 | .matches = { |
325 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
326 | DMI_MATCH(DMI_PRODUCT_NAME, "870Z5E/880Z5E/680Z5E"), | |
327 | }, | |
328 | }, | |
329 | { | |
330 | .callback = video_detect_force_video, | |
3b6740bd | 331 | /* SAMSUNG 370R4E/370R4V/370R5E/3570RE/370R5V */ |
3bd6bce3 HG |
332 | .matches = { |
333 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
334 | DMI_MATCH(DMI_PRODUCT_NAME, | |
335 | "370R4E/370R4V/370R5E/3570RE/370R5V"), | |
336 | }, | |
337 | }, | |
338 | { | |
339 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1186097 */ | |
340 | .callback = video_detect_force_video, | |
3b6740bd | 341 | /* SAMSUNG 3570R/370R/470R/450R/510R/4450RV */ |
3bd6bce3 HG |
342 | .matches = { |
343 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
344 | DMI_MATCH(DMI_PRODUCT_NAME, | |
345 | "3570R/370R/470R/450R/510R/4450RV"), | |
346 | }, | |
347 | }, | |
bbf03861 HG |
348 | { |
349 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1557060 */ | |
350 | .callback = video_detect_force_video, | |
3b6740bd | 351 | /* SAMSUNG 670Z5E */ |
bbf03861 HG |
352 | .matches = { |
353 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
354 | DMI_MATCH(DMI_PRODUCT_NAME, "670Z5E"), | |
355 | }, | |
356 | }, | |
3bd6bce3 HG |
357 | { |
358 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */ | |
359 | .callback = video_detect_force_video, | |
3b6740bd | 360 | /* SAMSUNG 730U3E/740U3E */ |
3bd6bce3 HG |
361 | .matches = { |
362 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
363 | DMI_MATCH(DMI_PRODUCT_NAME, "730U3E/740U3E"), | |
364 | }, | |
365 | }, | |
366 | { | |
367 | /* https://bugs.freedesktop.org/show_bug.cgi?id=87286 */ | |
368 | .callback = video_detect_force_video, | |
3b6740bd | 369 | /* SAMSUNG 900X3C/900X3D/900X3E/900X4C/900X4D */ |
3bd6bce3 HG |
370 | .matches = { |
371 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
372 | DMI_MATCH(DMI_PRODUCT_NAME, | |
373 | "900X3C/900X3D/900X3E/900X4C/900X4D"), | |
374 | }, | |
375 | }, | |
61f9738d HG |
376 | { |
377 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1272633 */ | |
378 | .callback = video_detect_force_video, | |
3b6740bd | 379 | /* Dell XPS14 L421X */ |
61f9738d HG |
380 | .matches = { |
381 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
382 | DMI_MATCH(DMI_PRODUCT_NAME, "XPS L421X"), | |
383 | }, | |
384 | }, | |
3bd6bce3 HG |
385 | { |
386 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */ | |
387 | .callback = video_detect_force_video, | |
3b6740bd | 388 | /* Dell XPS15 L521X */ |
3bd6bce3 HG |
389 | .matches = { |
390 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
391 | DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"), | |
392 | }, | |
393 | }, | |
49eb5208 AL |
394 | { |
395 | /* https://bugzilla.kernel.org/show_bug.cgi?id=108971 */ | |
396 | .callback = video_detect_force_video, | |
3b6740bd | 397 | /* SAMSUNG 530U4E/540U4E */ |
49eb5208 AL |
398 | .matches = { |
399 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
400 | DMI_MATCH(DMI_PRODUCT_NAME, "530U4E/540U4E"), | |
401 | }, | |
402 | }, | |
b226faab AH |
403 | /* https://bugs.launchpad.net/bugs/1894667 */ |
404 | { | |
405 | .callback = video_detect_force_video, | |
3b6740bd | 406 | /* HP 635 Notebook */ |
b226faab AH |
407 | .matches = { |
408 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
409 | DMI_MATCH(DMI_PRODUCT_NAME, "HP 635 Notebook PC"), | |
410 | }, | |
411 | }, | |
3bd6bce3 HG |
412 | |
413 | /* Non win8 machines which need native backlight nevertheless */ | |
584d8d1e HG |
414 | { |
415 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1201530 */ | |
416 | .callback = video_detect_force_native, | |
3b6740bd | 417 | /* Lenovo Ideapad S405 */ |
584d8d1e HG |
418 | .matches = { |
419 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
420 | DMI_MATCH(DMI_BOARD_NAME, "Lenovo IdeaPad S405"), | |
421 | }, | |
422 | }, | |
3bd6bce3 HG |
423 | { |
424 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */ | |
425 | .callback = video_detect_force_native, | |
3b6740bd | 426 | /* Lenovo Ideapad Z570 */ |
3bd6bce3 HG |
427 | .matches = { |
428 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
429 | DMI_MATCH(DMI_PRODUCT_NAME, "102434U"), | |
430 | }, | |
431 | }, | |
53870cf0 AM |
432 | { |
433 | .callback = video_detect_force_native, | |
3b6740bd | 434 | /* Lenovo E41-25 */ |
53870cf0 AM |
435 | .matches = { |
436 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
437 | DMI_MATCH(DMI_PRODUCT_NAME, "81FS"), | |
438 | }, | |
439 | }, | |
440 | { | |
441 | .callback = video_detect_force_native, | |
3b6740bd | 442 | /* Lenovo E41-45 */ |
53870cf0 AM |
443 | .matches = { |
444 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
445 | DMI_MATCH(DMI_PRODUCT_NAME, "82BK"), | |
446 | }, | |
447 | }, | |
3bd6bce3 HG |
448 | { |
449 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */ | |
450 | .callback = video_detect_force_native, | |
3b6740bd | 451 | /* Apple MacBook Pro 12,1 */ |
3bd6bce3 HG |
452 | .matches = { |
453 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
454 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"), | |
455 | }, | |
456 | }, | |
03c440a2 HG |
457 | { |
458 | .callback = video_detect_force_native, | |
459 | /* Dell Inspiron N4010 */ | |
460 | .matches = { | |
461 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
462 | DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron N4010"), | |
463 | }, | |
464 | }, | |
4b4b3b20 HG |
465 | { |
466 | .callback = video_detect_force_native, | |
3b6740bd | 467 | /* Dell Vostro V131 */ |
4b4b3b20 HG |
468 | .matches = { |
469 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
470 | DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"), | |
471 | }, | |
472 | }, | |
350fa038 HG |
473 | { |
474 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1123661 */ | |
475 | .callback = video_detect_force_native, | |
3b6740bd | 476 | /* Dell XPS 17 L702X */ |
350fa038 HG |
477 | .matches = { |
478 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
479 | DMI_MATCH(DMI_PRODUCT_NAME, "Dell System XPS L702X"), | |
480 | }, | |
481 | }, | |
d37efb79 SYLF |
482 | { |
483 | .callback = video_detect_force_native, | |
3b6740bd | 484 | /* Dell Precision 7510 */ |
d37efb79 SYLF |
485 | .matches = { |
486 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
487 | DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"), | |
488 | }, | |
489 | }, | |
1c8fbc1f HG |
490 | { |
491 | .callback = video_detect_force_native, | |
3b6740bd | 492 | /* Acer Aspire 5738z */ |
1c8fbc1f HG |
493 | .matches = { |
494 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
495 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"), | |
496 | DMI_MATCH(DMI_BOARD_NAME, "JV50"), | |
497 | }, | |
498 | }, | |
0172df18 HG |
499 | { |
500 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1012674 */ | |
501 | .callback = video_detect_force_native, | |
502 | /* Acer Aspire 5741 */ | |
503 | .matches = { | |
504 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
505 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"), | |
506 | }, | |
507 | }, | |
508 | { | |
509 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42993 */ | |
510 | .callback = video_detect_force_native, | |
511 | /* Acer Aspire 5750 */ | |
512 | .matches = { | |
513 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
514 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"), | |
515 | }, | |
516 | }, | |
517 | { | |
518 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42833 */ | |
519 | .callback = video_detect_force_native, | |
520 | /* Acer Extensa 5235 */ | |
521 | .matches = { | |
522 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
523 | DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"), | |
524 | }, | |
525 | }, | |
526 | { | |
527 | .callback = video_detect_force_native, | |
528 | /* Acer TravelMate 4750 */ | |
529 | .matches = { | |
530 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
531 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"), | |
532 | }, | |
533 | }, | |
c41c36e9 PM |
534 | { |
535 | /* https://bugzilla.kernel.org/show_bug.cgi?id=207835 */ | |
536 | .callback = video_detect_force_native, | |
3b6740bd | 537 | /* Acer TravelMate 5735Z */ |
c41c36e9 PM |
538 | .matches = { |
539 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
540 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5735Z"), | |
541 | DMI_MATCH(DMI_BOARD_NAME, "BA51_MV"), | |
542 | }, | |
543 | }, | |
0172df18 HG |
544 | { |
545 | /* https://bugzilla.kernel.org/show_bug.cgi?id=36322 */ | |
546 | .callback = video_detect_force_native, | |
547 | /* Acer TravelMate 5760 */ | |
548 | .matches = { | |
549 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
550 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"), | |
551 | }, | |
552 | }, | |
2dfbacc6 | 553 | { |
c2d6920e HG |
554 | .callback = video_detect_force_native, |
555 | /* ASUSTeK COMPUTER INC. GA401 */ | |
556 | .matches = { | |
2dfbacc6 LJ |
557 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), |
558 | DMI_MATCH(DMI_PRODUCT_NAME, "GA401"), | |
559 | }, | |
560 | }, | |
561 | { | |
c2d6920e HG |
562 | .callback = video_detect_force_native, |
563 | /* ASUSTeK COMPUTER INC. GA502 */ | |
564 | .matches = { | |
2dfbacc6 LJ |
565 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), |
566 | DMI_MATCH(DMI_PRODUCT_NAME, "GA502"), | |
567 | }, | |
568 | }, | |
569 | { | |
c2d6920e HG |
570 | .callback = video_detect_force_native, |
571 | /* ASUSTeK COMPUTER INC. GA503 */ | |
572 | .matches = { | |
2dfbacc6 LJ |
573 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), |
574 | DMI_MATCH(DMI_PRODUCT_NAME, "GA503"), | |
575 | }, | |
576 | }, | |
1e3344d6 HG |
577 | { |
578 | .callback = video_detect_force_native, | |
579 | /* Asus UX303UB */ | |
580 | .matches = { | |
581 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
582 | DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"), | |
583 | }, | |
584 | }, | |
8991d7d9 HG |
585 | { |
586 | .callback = video_detect_force_native, | |
587 | /* Samsung N150P */ | |
588 | .matches = { | |
589 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
590 | DMI_MATCH(DMI_PRODUCT_NAME, "N150P"), | |
591 | DMI_MATCH(DMI_BOARD_NAME, "N150P"), | |
592 | }, | |
593 | }, | |
594 | { | |
595 | .callback = video_detect_force_native, | |
596 | /* Samsung N145P/N250P/N260P */ | |
597 | .matches = { | |
598 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
599 | DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"), | |
600 | DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"), | |
601 | }, | |
602 | }, | |
603 | { | |
604 | .callback = video_detect_force_native, | |
605 | /* Samsung N250P */ | |
606 | .matches = { | |
607 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
608 | DMI_MATCH(DMI_PRODUCT_NAME, "N250P"), | |
609 | DMI_MATCH(DMI_BOARD_NAME, "N250P"), | |
610 | }, | |
611 | }, | |
10212754 | 612 | |
c5b94f5b HG |
613 | /* |
614 | * These Toshibas have a broken acpi-video interface for brightness | |
615 | * control. They also have an issue where the panel is off after | |
616 | * suspend until a special firmware call is made to turn it back | |
617 | * on. This is handled by the toshiba_acpi kernel module, so that | |
618 | * module must be enabled for these models to work correctly. | |
619 | */ | |
620 | { | |
621 | /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ | |
622 | .callback = video_detect_force_native, | |
623 | /* Toshiba Portégé R700 */ | |
624 | .matches = { | |
625 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
626 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"), | |
627 | }, | |
628 | }, | |
629 | { | |
630 | /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */ | |
631 | /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ | |
632 | .callback = video_detect_force_native, | |
633 | /* Toshiba Satellite/Portégé R830 */ | |
634 | .matches = { | |
635 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
636 | DMI_MATCH(DMI_PRODUCT_NAME, "R830"), | |
637 | }, | |
638 | }, | |
639 | { | |
640 | .callback = video_detect_force_native, | |
641 | /* Toshiba Satellite/Portégé Z830 */ | |
642 | .matches = { | |
643 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
644 | DMI_MATCH(DMI_PRODUCT_NAME, "Z830"), | |
645 | }, | |
646 | }, | |
647 | ||
d21a9162 HG |
648 | /* |
649 | * Desktops which falsely report a backlight and which our heuristics | |
650 | * for this do not catch. | |
651 | */ | |
1f59ab27 AH |
652 | { |
653 | .callback = video_detect_force_none, | |
3b6740bd | 654 | /* Dell OptiPlex 9020M */ |
1f59ab27 AH |
655 | .matches = { |
656 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
657 | DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 9020M"), | |
658 | }, | |
659 | }, | |
d21a9162 HG |
660 | { |
661 | .callback = video_detect_force_none, | |
3b6740bd | 662 | /* MSI MS-7721 */ |
d21a9162 HG |
663 | .matches = { |
664 | DMI_MATCH(DMI_SYS_VENDOR, "MSI"), | |
665 | DMI_MATCH(DMI_PRODUCT_NAME, "MS-7721"), | |
666 | }, | |
667 | }, | |
084940d5 CC |
668 | { }, |
669 | }; | |
670 | ||
e9cf4d9b DO |
671 | static bool google_cros_ec_present(void) |
672 | { | |
673 | return acpi_dev_found("GOOG0004"); | |
674 | } | |
675 | ||
c3d6de69 | 676 | /* |
87521e16 HG |
677 | * Determine which type of backlight interface to use on this system, |
678 | * First check cmdline, then dmi quirks, then do autodetect. | |
c3d6de69 | 679 | */ |
2600bfa3 | 680 | static enum acpi_backlight_type __acpi_video_get_backlight_type(bool native) |
c3d6de69 | 681 | { |
87521e16 | 682 | static DEFINE_MUTEX(init_mutex); |
fe7aebb4 | 683 | static bool nvidia_wmi_ec_present; |
2600bfa3 | 684 | static bool native_available; |
87521e16 HG |
685 | static bool init_done; |
686 | static long video_caps; | |
084940d5 | 687 | |
87521e16 HG |
688 | /* Parse cmdline, dmi and acpi only once */ |
689 | mutex_lock(&init_mutex); | |
690 | if (!init_done) { | |
691 | acpi_video_parse_cmdline(); | |
084940d5 | 692 | dmi_check_system(video_detect_dmi_table); |
87521e16 | 693 | acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, |
2263576c | 694 | ACPI_UINT32_MAX, find_video, NULL, |
87521e16 | 695 | &video_caps, NULL); |
fe7aebb4 | 696 | nvidia_wmi_ec_present = nvidia_wmi_ec_supported(); |
87521e16 | 697 | init_done = true; |
c3d6de69 | 698 | } |
2600bfa3 HG |
699 | if (native) |
700 | native_available = true; | |
87521e16 HG |
701 | mutex_unlock(&init_mutex); |
702 | ||
b39be9f4 HG |
703 | /* |
704 | * The below heuristics / detection steps are in order of descending | |
705 | * presedence. The commandline takes presedence over anything else. | |
706 | */ | |
87521e16 HG |
707 | if (acpi_backlight_cmdline != acpi_backlight_undef) |
708 | return acpi_backlight_cmdline; | |
709 | ||
b39be9f4 | 710 | /* DMI quirks override any autodetection. */ |
87521e16 HG |
711 | if (acpi_backlight_dmi != acpi_backlight_undef) |
712 | return acpi_backlight_dmi; | |
713 | ||
fe7aebb4 HG |
714 | /* Special cases such as nvidia_wmi_ec and apple gmux. */ |
715 | if (nvidia_wmi_ec_present) | |
716 | return acpi_backlight_nvidia_wmi_ec; | |
717 | ||
21245df3 HG |
718 | if (apple_gmux_present()) |
719 | return acpi_backlight_apple_gmux; | |
720 | ||
b39be9f4 HG |
721 | /* On systems with ACPI video use either native or ACPI video. */ |
722 | if (video_caps & ACPI_VIDEO_BACKLIGHT) { | |
723 | /* | |
724 | * Windows 8 and newer no longer use the ACPI video interface, | |
725 | * so it often does not work. If the ACPI tables are written | |
726 | * for win8 and native brightness ctl is available, use that. | |
727 | * | |
728 | * The native check deliberately is inside the if acpi-video | |
729 | * block on older devices without acpi-video support native | |
730 | * is usually not the best choice. | |
731 | */ | |
732 | if (acpi_osi_is_win8() && native_available) | |
733 | return acpi_backlight_native; | |
734 | else | |
735 | return acpi_backlight_video; | |
736 | } | |
87521e16 | 737 | |
e9cf4d9b DO |
738 | /* |
739 | * Chromebooks that don't have backlight handle in ACPI table | |
740 | * are supposed to use native backlight if it's available. | |
741 | */ | |
742 | if (google_cros_ec_present() && native_available) | |
743 | return acpi_backlight_native; | |
744 | ||
b39be9f4 HG |
745 | /* No ACPI video (old hw), use vendor specific fw methods. */ |
746 | return acpi_backlight_vendor; | |
c3d6de69 | 747 | } |
2600bfa3 HG |
748 | |
749 | enum acpi_backlight_type acpi_video_get_backlight_type(void) | |
750 | { | |
751 | return __acpi_video_get_backlight_type(false); | |
752 | } | |
87521e16 | 753 | EXPORT_SYMBOL(acpi_video_get_backlight_type); |
c3d6de69 | 754 | |
2600bfa3 HG |
755 | bool acpi_video_backlight_use_native(void) |
756 | { | |
757 | return __acpi_video_get_backlight_type(true) == acpi_backlight_native; | |
758 | } | |
759 | EXPORT_SYMBOL(acpi_video_backlight_use_native); |