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 | { | |
60f1fac2 | 169 | /* https://bugs.launchpad.net/bugs/1000146 */ |
52796b30 HG |
170 | .callback = video_detect_force_vendor, |
171 | /* Asus X101CH */ | |
172 | .matches = { | |
173 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
174 | DMI_MATCH(DMI_PRODUCT_NAME, "X101CH"), | |
175 | }, | |
176 | }, | |
177 | { | |
178 | .callback = video_detect_force_vendor, | |
179 | /* Asus X401U */ | |
180 | .matches = { | |
181 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
182 | DMI_MATCH(DMI_PRODUCT_NAME, "X401U"), | |
183 | }, | |
184 | }, | |
185 | { | |
186 | .callback = video_detect_force_vendor, | |
187 | /* Asus X501U */ | |
188 | .matches = { | |
189 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
190 | DMI_MATCH(DMI_PRODUCT_NAME, "X501U"), | |
191 | }, | |
192 | }, | |
193 | { | |
60f1fac2 | 194 | /* https://bugs.launchpad.net/bugs/1000146 */ |
52796b30 HG |
195 | .callback = video_detect_force_vendor, |
196 | /* Asus 1015CX */ | |
197 | .matches = { | |
198 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
199 | DMI_MATCH(DMI_PRODUCT_NAME, "1015CX"), | |
200 | }, | |
201 | }, | |
8991d7d9 HG |
202 | { |
203 | .callback = video_detect_force_vendor, | |
204 | /* Samsung N150/N210/N220 */ | |
205 | .matches = { | |
206 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
207 | DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"), | |
208 | DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"), | |
209 | }, | |
210 | }, | |
211 | { | |
212 | .callback = video_detect_force_vendor, | |
213 | /* Samsung NF110/NF210/NF310 */ | |
214 | .matches = { | |
215 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
216 | DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"), | |
217 | DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"), | |
218 | }, | |
219 | }, | |
220 | { | |
221 | .callback = video_detect_force_vendor, | |
222 | /* Samsung NC210 */ | |
223 | .matches = { | |
224 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
225 | DMI_MATCH(DMI_PRODUCT_NAME, "NC210/NC110"), | |
226 | DMI_MATCH(DMI_BOARD_NAME, "NC210/NC110"), | |
227 | }, | |
228 | }, | |
25417185 | 229 | { |
60f1fac2 | 230 | /* https://bugzilla.kernel.org/show_bug.cgi?id=202401 */ |
c2d6920e HG |
231 | .callback = video_detect_force_vendor, |
232 | /* Sony VPCEH3U1E */ | |
233 | .matches = { | |
aefa763b ZR |
234 | DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), |
235 | DMI_MATCH(DMI_PRODUCT_NAME, "VPCEH3U1E"), | |
236 | }, | |
237 | }, | |
60e6655f | 238 | { |
c2d6920e HG |
239 | .callback = video_detect_force_vendor, |
240 | /* Xiaomi Mi Pad 2 */ | |
241 | .matches = { | |
60e6655f HG |
242 | DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"), |
243 | DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"), | |
244 | }, | |
245 | }, | |
3bd6bce3 | 246 | |
a2ed70d0 HG |
247 | /* |
248 | * Toshiba models with Transflective display, these need to use | |
249 | * the toshiba_acpi vendor driver for proper Transflective handling. | |
250 | */ | |
251 | { | |
252 | .callback = video_detect_force_vendor, | |
253 | .matches = { | |
254 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
255 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R500"), | |
256 | }, | |
257 | }, | |
258 | { | |
259 | .callback = video_detect_force_vendor, | |
260 | .matches = { | |
261 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
262 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R600"), | |
263 | }, | |
264 | }, | |
265 | ||
3bd6bce3 HG |
266 | /* |
267 | * These models have a working acpi_video backlight control, and using | |
268 | * native backlight causes a regression where backlight does not work | |
269 | * when userspace is not handling brightness key events. Disable | |
270 | * native_backlight on these to fix this: | |
271 | * https://bugzilla.kernel.org/show_bug.cgi?id=81691 | |
272 | */ | |
273 | { | |
274 | .callback = video_detect_force_video, | |
3b6740bd | 275 | /* ThinkPad T420 */ |
3bd6bce3 HG |
276 | .matches = { |
277 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
278 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T420"), | |
279 | }, | |
280 | }, | |
281 | { | |
282 | .callback = video_detect_force_video, | |
3b6740bd | 283 | /* ThinkPad T520 */ |
3bd6bce3 HG |
284 | .matches = { |
285 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
286 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T520"), | |
287 | }, | |
288 | }, | |
289 | { | |
290 | .callback = video_detect_force_video, | |
3b6740bd | 291 | /* ThinkPad X201s */ |
3bd6bce3 HG |
292 | .matches = { |
293 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
294 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201s"), | |
295 | }, | |
296 | }, | |
c6237b21 ML |
297 | { |
298 | .callback = video_detect_force_video, | |
3b6740bd | 299 | /* ThinkPad X201T */ |
c6237b21 ML |
300 | .matches = { |
301 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
302 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201T"), | |
303 | }, | |
304 | }, | |
3bd6bce3 HG |
305 | |
306 | /* The native backlight controls do not work on some older machines */ | |
307 | { | |
308 | /* https://bugs.freedesktop.org/show_bug.cgi?id=81515 */ | |
309 | .callback = video_detect_force_video, | |
3b6740bd | 310 | /* HP ENVY 15 Notebook */ |
3bd6bce3 HG |
311 | .matches = { |
312 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
313 | DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY 15 Notebook PC"), | |
314 | }, | |
315 | }, | |
316 | { | |
317 | .callback = video_detect_force_video, | |
3b6740bd | 318 | /* SAMSUNG 870Z5E/880Z5E/680Z5E */ |
3bd6bce3 HG |
319 | .matches = { |
320 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
321 | DMI_MATCH(DMI_PRODUCT_NAME, "870Z5E/880Z5E/680Z5E"), | |
322 | }, | |
323 | }, | |
324 | { | |
325 | .callback = video_detect_force_video, | |
3b6740bd | 326 | /* SAMSUNG 370R4E/370R4V/370R5E/3570RE/370R5V */ |
3bd6bce3 HG |
327 | .matches = { |
328 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
329 | DMI_MATCH(DMI_PRODUCT_NAME, | |
330 | "370R4E/370R4V/370R5E/3570RE/370R5V"), | |
331 | }, | |
332 | }, | |
333 | { | |
334 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1186097 */ | |
335 | .callback = video_detect_force_video, | |
3b6740bd | 336 | /* SAMSUNG 3570R/370R/470R/450R/510R/4450RV */ |
3bd6bce3 HG |
337 | .matches = { |
338 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
339 | DMI_MATCH(DMI_PRODUCT_NAME, | |
340 | "3570R/370R/470R/450R/510R/4450RV"), | |
341 | }, | |
342 | }, | |
bbf03861 HG |
343 | { |
344 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1557060 */ | |
345 | .callback = video_detect_force_video, | |
3b6740bd | 346 | /* SAMSUNG 670Z5E */ |
bbf03861 HG |
347 | .matches = { |
348 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
349 | DMI_MATCH(DMI_PRODUCT_NAME, "670Z5E"), | |
350 | }, | |
351 | }, | |
3bd6bce3 HG |
352 | { |
353 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */ | |
354 | .callback = video_detect_force_video, | |
3b6740bd | 355 | /* SAMSUNG 730U3E/740U3E */ |
3bd6bce3 HG |
356 | .matches = { |
357 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
358 | DMI_MATCH(DMI_PRODUCT_NAME, "730U3E/740U3E"), | |
359 | }, | |
360 | }, | |
361 | { | |
362 | /* https://bugs.freedesktop.org/show_bug.cgi?id=87286 */ | |
363 | .callback = video_detect_force_video, | |
3b6740bd | 364 | /* SAMSUNG 900X3C/900X3D/900X3E/900X4C/900X4D */ |
3bd6bce3 HG |
365 | .matches = { |
366 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
367 | DMI_MATCH(DMI_PRODUCT_NAME, | |
368 | "900X3C/900X3D/900X3E/900X4C/900X4D"), | |
369 | }, | |
370 | }, | |
61f9738d HG |
371 | { |
372 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1272633 */ | |
373 | .callback = video_detect_force_video, | |
3b6740bd | 374 | /* Dell XPS14 L421X */ |
61f9738d HG |
375 | .matches = { |
376 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
377 | DMI_MATCH(DMI_PRODUCT_NAME, "XPS L421X"), | |
378 | }, | |
379 | }, | |
3bd6bce3 HG |
380 | { |
381 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */ | |
382 | .callback = video_detect_force_video, | |
3b6740bd | 383 | /* Dell XPS15 L521X */ |
3bd6bce3 HG |
384 | .matches = { |
385 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
386 | DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"), | |
387 | }, | |
388 | }, | |
49eb5208 AL |
389 | { |
390 | /* https://bugzilla.kernel.org/show_bug.cgi?id=108971 */ | |
391 | .callback = video_detect_force_video, | |
3b6740bd | 392 | /* SAMSUNG 530U4E/540U4E */ |
49eb5208 AL |
393 | .matches = { |
394 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
395 | DMI_MATCH(DMI_PRODUCT_NAME, "530U4E/540U4E"), | |
396 | }, | |
397 | }, | |
b226faab | 398 | { |
60f1fac2 | 399 | /* https://bugs.launchpad.net/bugs/1894667 */ |
b226faab | 400 | .callback = video_detect_force_video, |
3b6740bd | 401 | /* HP 635 Notebook */ |
b226faab AH |
402 | .matches = { |
403 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
404 | DMI_MATCH(DMI_PRODUCT_NAME, "HP 635 Notebook PC"), | |
405 | }, | |
406 | }, | |
3bd6bce3 HG |
407 | |
408 | /* Non win8 machines which need native backlight nevertheless */ | |
584d8d1e HG |
409 | { |
410 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1201530 */ | |
411 | .callback = video_detect_force_native, | |
3b6740bd | 412 | /* Lenovo Ideapad S405 */ |
584d8d1e HG |
413 | .matches = { |
414 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
415 | DMI_MATCH(DMI_BOARD_NAME, "Lenovo IdeaPad S405"), | |
416 | }, | |
417 | }, | |
3bd6bce3 HG |
418 | { |
419 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */ | |
420 | .callback = video_detect_force_native, | |
3b6740bd | 421 | /* Lenovo Ideapad Z570 */ |
3bd6bce3 HG |
422 | .matches = { |
423 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
424 | DMI_MATCH(DMI_PRODUCT_NAME, "102434U"), | |
425 | }, | |
426 | }, | |
53870cf0 AM |
427 | { |
428 | .callback = video_detect_force_native, | |
3b6740bd | 429 | /* Lenovo E41-25 */ |
53870cf0 AM |
430 | .matches = { |
431 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
432 | DMI_MATCH(DMI_PRODUCT_NAME, "81FS"), | |
433 | }, | |
434 | }, | |
435 | { | |
436 | .callback = video_detect_force_native, | |
3b6740bd | 437 | /* Lenovo E41-45 */ |
53870cf0 AM |
438 | .matches = { |
439 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
440 | DMI_MATCH(DMI_PRODUCT_NAME, "82BK"), | |
441 | }, | |
442 | }, | |
3bd6bce3 HG |
443 | { |
444 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */ | |
445 | .callback = video_detect_force_native, | |
3b6740bd | 446 | /* Apple MacBook Pro 12,1 */ |
3bd6bce3 HG |
447 | .matches = { |
448 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
449 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"), | |
450 | }, | |
451 | }, | |
03c440a2 HG |
452 | { |
453 | .callback = video_detect_force_native, | |
454 | /* Dell Inspiron N4010 */ | |
455 | .matches = { | |
456 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
457 | DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron N4010"), | |
458 | }, | |
459 | }, | |
4b4b3b20 HG |
460 | { |
461 | .callback = video_detect_force_native, | |
3b6740bd | 462 | /* Dell Vostro V131 */ |
4b4b3b20 HG |
463 | .matches = { |
464 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
465 | DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"), | |
466 | }, | |
467 | }, | |
350fa038 HG |
468 | { |
469 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1123661 */ | |
470 | .callback = video_detect_force_native, | |
3b6740bd | 471 | /* Dell XPS 17 L702X */ |
350fa038 HG |
472 | .matches = { |
473 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
474 | DMI_MATCH(DMI_PRODUCT_NAME, "Dell System XPS L702X"), | |
475 | }, | |
476 | }, | |
d37efb79 SYLF |
477 | { |
478 | .callback = video_detect_force_native, | |
3b6740bd | 479 | /* Dell Precision 7510 */ |
d37efb79 SYLF |
480 | .matches = { |
481 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
482 | DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"), | |
483 | }, | |
484 | }, | |
1c8fbc1f HG |
485 | { |
486 | .callback = video_detect_force_native, | |
3b6740bd | 487 | /* Acer Aspire 5738z */ |
1c8fbc1f HG |
488 | .matches = { |
489 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
490 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"), | |
491 | DMI_MATCH(DMI_BOARD_NAME, "JV50"), | |
492 | }, | |
493 | }, | |
0172df18 HG |
494 | { |
495 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1012674 */ | |
496 | .callback = video_detect_force_native, | |
497 | /* Acer Aspire 5741 */ | |
498 | .matches = { | |
499 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
500 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"), | |
501 | }, | |
502 | }, | |
503 | { | |
504 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42993 */ | |
505 | .callback = video_detect_force_native, | |
506 | /* Acer Aspire 5750 */ | |
507 | .matches = { | |
508 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
509 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"), | |
510 | }, | |
511 | }, | |
512 | { | |
513 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42833 */ | |
514 | .callback = video_detect_force_native, | |
515 | /* Acer Extensa 5235 */ | |
516 | .matches = { | |
517 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
518 | DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"), | |
519 | }, | |
520 | }, | |
521 | { | |
522 | .callback = video_detect_force_native, | |
523 | /* Acer TravelMate 4750 */ | |
524 | .matches = { | |
525 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
526 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"), | |
527 | }, | |
528 | }, | |
c41c36e9 PM |
529 | { |
530 | /* https://bugzilla.kernel.org/show_bug.cgi?id=207835 */ | |
531 | .callback = video_detect_force_native, | |
3b6740bd | 532 | /* Acer TravelMate 5735Z */ |
c41c36e9 PM |
533 | .matches = { |
534 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
535 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5735Z"), | |
536 | DMI_MATCH(DMI_BOARD_NAME, "BA51_MV"), | |
537 | }, | |
538 | }, | |
0172df18 HG |
539 | { |
540 | /* https://bugzilla.kernel.org/show_bug.cgi?id=36322 */ | |
541 | .callback = video_detect_force_native, | |
542 | /* Acer TravelMate 5760 */ | |
543 | .matches = { | |
544 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
545 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"), | |
546 | }, | |
547 | }, | |
2dfbacc6 | 548 | { |
c2d6920e HG |
549 | .callback = video_detect_force_native, |
550 | /* ASUSTeK COMPUTER INC. GA401 */ | |
551 | .matches = { | |
2dfbacc6 LJ |
552 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), |
553 | DMI_MATCH(DMI_PRODUCT_NAME, "GA401"), | |
554 | }, | |
555 | }, | |
556 | { | |
c2d6920e HG |
557 | .callback = video_detect_force_native, |
558 | /* ASUSTeK COMPUTER INC. GA502 */ | |
559 | .matches = { | |
2dfbacc6 LJ |
560 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), |
561 | DMI_MATCH(DMI_PRODUCT_NAME, "GA502"), | |
562 | }, | |
563 | }, | |
564 | { | |
c2d6920e HG |
565 | .callback = video_detect_force_native, |
566 | /* ASUSTeK COMPUTER INC. GA503 */ | |
567 | .matches = { | |
2dfbacc6 LJ |
568 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), |
569 | DMI_MATCH(DMI_PRODUCT_NAME, "GA503"), | |
570 | }, | |
571 | }, | |
1e3344d6 HG |
572 | { |
573 | .callback = video_detect_force_native, | |
574 | /* Asus UX303UB */ | |
575 | .matches = { | |
576 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
577 | DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"), | |
578 | }, | |
579 | }, | |
8991d7d9 HG |
580 | { |
581 | .callback = video_detect_force_native, | |
582 | /* Samsung N150P */ | |
583 | .matches = { | |
584 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
585 | DMI_MATCH(DMI_PRODUCT_NAME, "N150P"), | |
586 | DMI_MATCH(DMI_BOARD_NAME, "N150P"), | |
587 | }, | |
588 | }, | |
589 | { | |
590 | .callback = video_detect_force_native, | |
591 | /* Samsung N145P/N250P/N260P */ | |
592 | .matches = { | |
593 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
594 | DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"), | |
595 | DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"), | |
596 | }, | |
597 | }, | |
598 | { | |
599 | .callback = video_detect_force_native, | |
600 | /* Samsung N250P */ | |
601 | .matches = { | |
602 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
603 | DMI_MATCH(DMI_PRODUCT_NAME, "N250P"), | |
604 | DMI_MATCH(DMI_BOARD_NAME, "N250P"), | |
605 | }, | |
606 | }, | |
10212754 | 607 | |
c5b94f5b HG |
608 | /* |
609 | * These Toshibas have a broken acpi-video interface for brightness | |
610 | * control. They also have an issue where the panel is off after | |
611 | * suspend until a special firmware call is made to turn it back | |
612 | * on. This is handled by the toshiba_acpi kernel module, so that | |
613 | * module must be enabled for these models to work correctly. | |
614 | */ | |
615 | { | |
616 | /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ | |
617 | .callback = video_detect_force_native, | |
618 | /* Toshiba Portégé R700 */ | |
619 | .matches = { | |
620 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
621 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"), | |
622 | }, | |
623 | }, | |
624 | { | |
625 | /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */ | |
626 | /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ | |
627 | .callback = video_detect_force_native, | |
628 | /* Toshiba Satellite/Portégé R830 */ | |
629 | .matches = { | |
630 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
631 | DMI_MATCH(DMI_PRODUCT_NAME, "R830"), | |
632 | }, | |
633 | }, | |
634 | { | |
635 | .callback = video_detect_force_native, | |
636 | /* Toshiba Satellite/Portégé Z830 */ | |
637 | .matches = { | |
638 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
639 | DMI_MATCH(DMI_PRODUCT_NAME, "Z830"), | |
640 | }, | |
641 | }, | |
642 | ||
f46acc1e HG |
643 | /* |
644 | * Models which have nvidia-ec-wmi support, but should not use it. | |
645 | * Note this indicates a likely firmware bug on these models and should | |
646 | * be revisited if/when Linux gets support for dynamic mux mode. | |
647 | */ | |
648 | { | |
649 | .callback = video_detect_force_native, | |
650 | /* Dell G15 5515 */ | |
651 | .matches = { | |
652 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
653 | DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"), | |
654 | }, | |
655 | }, | |
656 | ||
d21a9162 HG |
657 | /* |
658 | * Desktops which falsely report a backlight and which our heuristics | |
659 | * for this do not catch. | |
660 | */ | |
1f59ab27 AH |
661 | { |
662 | .callback = video_detect_force_none, | |
3b6740bd | 663 | /* Dell OptiPlex 9020M */ |
1f59ab27 AH |
664 | .matches = { |
665 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
666 | DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 9020M"), | |
667 | }, | |
668 | }, | |
9f7dd272 HG |
669 | { |
670 | .callback = video_detect_force_none, | |
671 | /* GIGABYTE GB-BXBT-2807 */ | |
672 | .matches = { | |
673 | DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"), | |
674 | DMI_MATCH(DMI_PRODUCT_NAME, "GB-BXBT-2807"), | |
675 | }, | |
676 | }, | |
d21a9162 HG |
677 | { |
678 | .callback = video_detect_force_none, | |
3b6740bd | 679 | /* MSI MS-7721 */ |
d21a9162 HG |
680 | .matches = { |
681 | DMI_MATCH(DMI_SYS_VENDOR, "MSI"), | |
682 | DMI_MATCH(DMI_PRODUCT_NAME, "MS-7721"), | |
683 | }, | |
684 | }, | |
084940d5 CC |
685 | { }, |
686 | }; | |
687 | ||
e9cf4d9b DO |
688 | static bool google_cros_ec_present(void) |
689 | { | |
59dc2a7e | 690 | return acpi_dev_found("GOOG0004") || acpi_dev_found("GOOG000C"); |
e9cf4d9b DO |
691 | } |
692 | ||
c3d6de69 | 693 | /* |
87521e16 HG |
694 | * Determine which type of backlight interface to use on this system, |
695 | * First check cmdline, then dmi quirks, then do autodetect. | |
c3d6de69 | 696 | */ |
2600bfa3 | 697 | static enum acpi_backlight_type __acpi_video_get_backlight_type(bool native) |
c3d6de69 | 698 | { |
87521e16 | 699 | static DEFINE_MUTEX(init_mutex); |
fe7aebb4 | 700 | static bool nvidia_wmi_ec_present; |
2600bfa3 | 701 | static bool native_available; |
87521e16 HG |
702 | static bool init_done; |
703 | static long video_caps; | |
084940d5 | 704 | |
87521e16 HG |
705 | /* Parse cmdline, dmi and acpi only once */ |
706 | mutex_lock(&init_mutex); | |
707 | if (!init_done) { | |
708 | acpi_video_parse_cmdline(); | |
084940d5 | 709 | dmi_check_system(video_detect_dmi_table); |
87521e16 | 710 | acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, |
2263576c | 711 | ACPI_UINT32_MAX, find_video, NULL, |
87521e16 | 712 | &video_caps, NULL); |
fe7aebb4 | 713 | nvidia_wmi_ec_present = nvidia_wmi_ec_supported(); |
87521e16 | 714 | init_done = true; |
c3d6de69 | 715 | } |
2600bfa3 HG |
716 | if (native) |
717 | native_available = true; | |
87521e16 HG |
718 | mutex_unlock(&init_mutex); |
719 | ||
b39be9f4 HG |
720 | /* |
721 | * The below heuristics / detection steps are in order of descending | |
722 | * presedence. The commandline takes presedence over anything else. | |
723 | */ | |
87521e16 HG |
724 | if (acpi_backlight_cmdline != acpi_backlight_undef) |
725 | return acpi_backlight_cmdline; | |
726 | ||
b39be9f4 | 727 | /* DMI quirks override any autodetection. */ |
87521e16 HG |
728 | if (acpi_backlight_dmi != acpi_backlight_undef) |
729 | return acpi_backlight_dmi; | |
730 | ||
fe7aebb4 HG |
731 | /* Special cases such as nvidia_wmi_ec and apple gmux. */ |
732 | if (nvidia_wmi_ec_present) | |
733 | return acpi_backlight_nvidia_wmi_ec; | |
734 | ||
21245df3 HG |
735 | if (apple_gmux_present()) |
736 | return acpi_backlight_apple_gmux; | |
737 | ||
59dc2a7e HG |
738 | /* Chromebooks should always prefer native backlight control. */ |
739 | if (google_cros_ec_present() && native_available) | |
740 | return acpi_backlight_native; | |
741 | ||
b39be9f4 HG |
742 | /* On systems with ACPI video use either native or ACPI video. */ |
743 | if (video_caps & ACPI_VIDEO_BACKLIGHT) { | |
744 | /* | |
745 | * Windows 8 and newer no longer use the ACPI video interface, | |
746 | * so it often does not work. If the ACPI tables are written | |
747 | * for win8 and native brightness ctl is available, use that. | |
748 | * | |
749 | * The native check deliberately is inside the if acpi-video | |
750 | * block on older devices without acpi-video support native | |
751 | * is usually not the best choice. | |
752 | */ | |
753 | if (acpi_osi_is_win8() && native_available) | |
754 | return acpi_backlight_native; | |
755 | else | |
756 | return acpi_backlight_video; | |
757 | } | |
87521e16 | 758 | |
b39be9f4 HG |
759 | /* No ACPI video (old hw), use vendor specific fw methods. */ |
760 | return acpi_backlight_vendor; | |
c3d6de69 | 761 | } |
2600bfa3 HG |
762 | |
763 | enum acpi_backlight_type acpi_video_get_backlight_type(void) | |
764 | { | |
765 | return __acpi_video_get_backlight_type(false); | |
766 | } | |
87521e16 | 767 | EXPORT_SYMBOL(acpi_video_get_backlight_type); |
c3d6de69 | 768 | |
2600bfa3 HG |
769 | bool acpi_video_backlight_use_native(void) |
770 | { | |
454d61a5 HG |
771 | /* |
772 | * Call __acpi_video_get_backlight_type() to let it know that | |
773 | * a native backlight is available. | |
774 | */ | |
775 | __acpi_video_get_backlight_type(true); | |
776 | ||
777 | /* | |
778 | * For now just always return true. There is a whole bunch of laptop | |
779 | * models where (video_caps & ACPI_VIDEO_BACKLIGHT) is false causing | |
780 | * __acpi_video_get_backlight_type() to return vendor, while these | |
781 | * models only have a native backlight control. | |
782 | */ | |
783 | return true; | |
2600bfa3 HG |
784 | } |
785 | EXPORT_SYMBOL(acpi_video_backlight_use_native); |