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> |
3cf3b7f0 | 37 | #include <linux/pnp.h> |
87521e16 | 38 | #include <linux/types.h> |
7231ed1a | 39 | #include <linux/workqueue.h> |
87521e16 | 40 | #include <acpi/video.h> |
c3d6de69 | 41 | |
87521e16 HG |
42 | static enum acpi_backlight_type acpi_backlight_cmdline = acpi_backlight_undef; |
43 | static enum acpi_backlight_type acpi_backlight_dmi = acpi_backlight_undef; | |
c3d6de69 | 44 | |
14ca7a47 HG |
45 | static void acpi_video_parse_cmdline(void) |
46 | { | |
47 | if (!strcmp("vendor", acpi_video_backlight_string)) | |
87521e16 | 48 | acpi_backlight_cmdline = acpi_backlight_vendor; |
14ca7a47 | 49 | if (!strcmp("video", acpi_video_backlight_string)) |
87521e16 HG |
50 | acpi_backlight_cmdline = acpi_backlight_video; |
51 | if (!strcmp("native", acpi_video_backlight_string)) | |
52 | acpi_backlight_cmdline = acpi_backlight_native; | |
420a1116 HG |
53 | if (!strcmp("nvidia_wmi_ec", acpi_video_backlight_string)) |
54 | acpi_backlight_cmdline = acpi_backlight_nvidia_wmi_ec; | |
55 | if (!strcmp("apple_gmux", acpi_video_backlight_string)) | |
56 | acpi_backlight_cmdline = acpi_backlight_apple_gmux; | |
87521e16 HG |
57 | if (!strcmp("none", acpi_video_backlight_string)) |
58 | acpi_backlight_cmdline = acpi_backlight_none; | |
14ca7a47 HG |
59 | } |
60 | ||
c3d6de69 TR |
61 | static acpi_status |
62 | find_video(acpi_handle handle, u32 lvl, void *context, void **rv) | |
63 | { | |
99ece713 | 64 | struct acpi_device *acpi_dev = acpi_fetch_acpi_dev(handle); |
c3d6de69 | 65 | long *cap = context; |
1e4cffe7 | 66 | struct pci_dev *dev; |
c3d6de69 | 67 | |
4a4f01a6 | 68 | static const struct acpi_device_id video_ids[] = { |
c3d6de69 TR |
69 | {ACPI_VIDEO_HID, 0}, |
70 | {"", 0}, | |
71 | }; | |
c3d6de69 | 72 | |
99ece713 | 73 | if (acpi_dev && !acpi_match_device_ids(acpi_dev, video_ids)) { |
1e4cffe7 | 74 | dev = acpi_get_pci_dev(handle); |
c3d6de69 TR |
75 | if (!dev) |
76 | return AE_OK; | |
1e4cffe7 | 77 | pci_dev_put(dev); |
d4e1a692 | 78 | *cap |= acpi_is_video_device(handle); |
c3d6de69 TR |
79 | } |
80 | return AE_OK; | |
81 | } | |
82 | ||
fe7aebb4 HG |
83 | /* This depends on ACPI_WMI which is X86 only */ |
84 | #ifdef CONFIG_X86 | |
85 | static bool nvidia_wmi_ec_supported(void) | |
86 | { | |
87 | struct wmi_brightness_args args = { | |
88 | .mode = WMI_BRIGHTNESS_MODE_GET, | |
89 | .val = 0, | |
90 | .ret = 0, | |
91 | }; | |
92 | struct acpi_buffer buf = { (acpi_size)sizeof(args), &args }; | |
93 | acpi_status status; | |
94 | ||
95 | status = wmi_evaluate_method(WMI_BRIGHTNESS_GUID, 0, | |
96 | WMI_BRIGHTNESS_METHOD_SOURCE, &buf, &buf); | |
97 | if (ACPI_FAILURE(status)) | |
98 | return false; | |
99 | ||
100 | /* | |
101 | * If brightness is handled by the EC then nvidia-wmi-ec-backlight | |
102 | * should be used, else the GPU driver(s) should be used. | |
103 | */ | |
104 | return args.ret == WMI_BRIGHTNESS_SOURCE_EC; | |
105 | } | |
106 | #else | |
107 | static bool nvidia_wmi_ec_supported(void) | |
108 | { | |
109 | return false; | |
110 | } | |
111 | #endif | |
112 | ||
084940d5 CC |
113 | /* Force to use vendor driver when the ACPI device is known to be |
114 | * buggy */ | |
115 | static int video_detect_force_vendor(const struct dmi_system_id *d) | |
116 | { | |
87521e16 | 117 | acpi_backlight_dmi = acpi_backlight_vendor; |
084940d5 CC |
118 | return 0; |
119 | } | |
120 | ||
3bd6bce3 HG |
121 | static int video_detect_force_video(const struct dmi_system_id *d) |
122 | { | |
123 | acpi_backlight_dmi = acpi_backlight_video; | |
124 | return 0; | |
125 | } | |
126 | ||
127 | static int video_detect_force_native(const struct dmi_system_id *d) | |
128 | { | |
129 | acpi_backlight_dmi = acpi_backlight_native; | |
130 | return 0; | |
131 | } | |
132 | ||
4a4f01a6 | 133 | static const struct dmi_system_id video_detect_dmi_table[] = { |
84d56f32 HG |
134 | /* |
135 | * Models which should use the vendor backlight interface, | |
136 | * because of broken ACPI video backlight control. | |
137 | */ | |
0172df18 HG |
138 | { |
139 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1128309 */ | |
140 | .callback = video_detect_force_vendor, | |
141 | /* Acer KAV80 */ | |
142 | .matches = { | |
143 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
144 | DMI_MATCH(DMI_PRODUCT_NAME, "KAV80"), | |
145 | }, | |
146 | }, | |
d0c2ce16 | 147 | { |
c2d6920e HG |
148 | .callback = video_detect_force_vendor, |
149 | /* Asus UL30VT */ | |
150 | .matches = { | |
d0c2ce16 LT |
151 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
152 | DMI_MATCH(DMI_PRODUCT_NAME, "UL30VT"), | |
153 | }, | |
154 | }, | |
c8f6d835 | 155 | { |
c2d6920e HG |
156 | .callback = video_detect_force_vendor, |
157 | /* Asus UL30A */ | |
158 | .matches = { | |
c8f6d835 BT |
159 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
160 | DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"), | |
161 | }, | |
162 | }, | |
52796b30 HG |
163 | { |
164 | .callback = video_detect_force_vendor, | |
165 | /* Asus X55U */ | |
166 | .matches = { | |
167 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
168 | DMI_MATCH(DMI_PRODUCT_NAME, "X55U"), | |
169 | }, | |
170 | }, | |
171 | { | |
60f1fac2 | 172 | /* https://bugs.launchpad.net/bugs/1000146 */ |
52796b30 HG |
173 | .callback = video_detect_force_vendor, |
174 | /* Asus X101CH */ | |
175 | .matches = { | |
176 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
177 | DMI_MATCH(DMI_PRODUCT_NAME, "X101CH"), | |
178 | }, | |
179 | }, | |
180 | { | |
181 | .callback = video_detect_force_vendor, | |
182 | /* Asus X401U */ | |
183 | .matches = { | |
184 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
185 | DMI_MATCH(DMI_PRODUCT_NAME, "X401U"), | |
186 | }, | |
187 | }, | |
188 | { | |
189 | .callback = video_detect_force_vendor, | |
190 | /* Asus X501U */ | |
191 | .matches = { | |
192 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
193 | DMI_MATCH(DMI_PRODUCT_NAME, "X501U"), | |
194 | }, | |
195 | }, | |
196 | { | |
60f1fac2 | 197 | /* https://bugs.launchpad.net/bugs/1000146 */ |
52796b30 HG |
198 | .callback = video_detect_force_vendor, |
199 | /* Asus 1015CX */ | |
200 | .matches = { | |
201 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
202 | DMI_MATCH(DMI_PRODUCT_NAME, "1015CX"), | |
203 | }, | |
204 | }, | |
8991d7d9 HG |
205 | { |
206 | .callback = video_detect_force_vendor, | |
207 | /* Samsung N150/N210/N220 */ | |
208 | .matches = { | |
209 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
210 | DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"), | |
211 | DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"), | |
212 | }, | |
213 | }, | |
214 | { | |
215 | .callback = video_detect_force_vendor, | |
216 | /* Samsung NF110/NF210/NF310 */ | |
217 | .matches = { | |
218 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
219 | DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"), | |
220 | DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"), | |
221 | }, | |
222 | }, | |
223 | { | |
224 | .callback = video_detect_force_vendor, | |
225 | /* Samsung NC210 */ | |
226 | .matches = { | |
227 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
228 | DMI_MATCH(DMI_PRODUCT_NAME, "NC210/NC110"), | |
229 | DMI_MATCH(DMI_BOARD_NAME, "NC210/NC110"), | |
230 | }, | |
231 | }, | |
60e6655f | 232 | { |
c2d6920e HG |
233 | .callback = video_detect_force_vendor, |
234 | /* Xiaomi Mi Pad 2 */ | |
235 | .matches = { | |
60e6655f HG |
236 | DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"), |
237 | DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"), | |
238 | }, | |
239 | }, | |
3bd6bce3 | 240 | |
23735543 HG |
241 | /* |
242 | * Models which should use the vendor backlight interface, | |
243 | * because of broken native backlight control. | |
244 | */ | |
245 | { | |
246 | .callback = video_detect_force_vendor, | |
247 | /* Sony Vaio PCG-FRV35 */ | |
248 | .matches = { | |
249 | DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), | |
250 | DMI_MATCH(DMI_PRODUCT_NAME, "PCG-FRV35"), | |
251 | }, | |
252 | }, | |
253 | ||
a2ed70d0 HG |
254 | /* |
255 | * Toshiba models with Transflective display, these need to use | |
256 | * the toshiba_acpi vendor driver for proper Transflective handling. | |
257 | */ | |
258 | { | |
259 | .callback = video_detect_force_vendor, | |
260 | .matches = { | |
261 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
262 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R500"), | |
263 | }, | |
264 | }, | |
265 | { | |
266 | .callback = video_detect_force_vendor, | |
267 | .matches = { | |
268 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
269 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R600"), | |
270 | }, | |
271 | }, | |
272 | ||
26991079 HG |
273 | /* |
274 | * Models which need acpi_video backlight control where the GPU drivers | |
275 | * do not call acpi_video_register_backlight() because no internal panel | |
276 | * is detected. Typically these are all-in-ones (monitors with builtin | |
277 | * PC) where the panel connection shows up as regular DP instead of eDP. | |
278 | */ | |
279 | { | |
280 | .callback = video_detect_force_video, | |
281 | /* Apple iMac14,1 */ | |
282 | .matches = { | |
283 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
284 | DMI_MATCH(DMI_PRODUCT_NAME, "iMac14,1"), | |
285 | }, | |
286 | }, | |
287 | { | |
288 | .callback = video_detect_force_video, | |
289 | /* Apple iMac14,2 */ | |
290 | .matches = { | |
291 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
292 | DMI_MATCH(DMI_PRODUCT_NAME, "iMac14,2"), | |
293 | }, | |
294 | }, | |
295 | ||
3bd6bce3 HG |
296 | /* |
297 | * These models have a working acpi_video backlight control, and using | |
298 | * native backlight causes a regression where backlight does not work | |
299 | * when userspace is not handling brightness key events. Disable | |
300 | * native_backlight on these to fix this: | |
301 | * https://bugzilla.kernel.org/show_bug.cgi?id=81691 | |
302 | */ | |
303 | { | |
304 | .callback = video_detect_force_video, | |
3b6740bd | 305 | /* ThinkPad T420 */ |
3bd6bce3 HG |
306 | .matches = { |
307 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
308 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T420"), | |
309 | }, | |
310 | }, | |
311 | { | |
312 | .callback = video_detect_force_video, | |
3b6740bd | 313 | /* ThinkPad T520 */ |
3bd6bce3 HG |
314 | .matches = { |
315 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
316 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T520"), | |
317 | }, | |
318 | }, | |
319 | { | |
320 | .callback = video_detect_force_video, | |
3b6740bd | 321 | /* ThinkPad X201s */ |
3bd6bce3 HG |
322 | .matches = { |
323 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
324 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201s"), | |
325 | }, | |
326 | }, | |
c6237b21 ML |
327 | { |
328 | .callback = video_detect_force_video, | |
3b6740bd | 329 | /* ThinkPad X201T */ |
c6237b21 ML |
330 | .matches = { |
331 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
332 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201T"), | |
333 | }, | |
334 | }, | |
3bd6bce3 HG |
335 | |
336 | /* The native backlight controls do not work on some older machines */ | |
337 | { | |
338 | /* https://bugs.freedesktop.org/show_bug.cgi?id=81515 */ | |
339 | .callback = video_detect_force_video, | |
3b6740bd | 340 | /* HP ENVY 15 Notebook */ |
3bd6bce3 HG |
341 | .matches = { |
342 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
343 | DMI_MATCH(DMI_PRODUCT_NAME, "HP ENVY 15 Notebook PC"), | |
344 | }, | |
345 | }, | |
346 | { | |
347 | .callback = video_detect_force_video, | |
3b6740bd | 348 | /* SAMSUNG 870Z5E/880Z5E/680Z5E */ |
3bd6bce3 HG |
349 | .matches = { |
350 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
351 | DMI_MATCH(DMI_PRODUCT_NAME, "870Z5E/880Z5E/680Z5E"), | |
352 | }, | |
353 | }, | |
354 | { | |
355 | .callback = video_detect_force_video, | |
3b6740bd | 356 | /* SAMSUNG 370R4E/370R4V/370R5E/3570RE/370R5V */ |
3bd6bce3 HG |
357 | .matches = { |
358 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
359 | DMI_MATCH(DMI_PRODUCT_NAME, | |
360 | "370R4E/370R4V/370R5E/3570RE/370R5V"), | |
361 | }, | |
362 | }, | |
363 | { | |
364 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1186097 */ | |
365 | .callback = video_detect_force_video, | |
3b6740bd | 366 | /* SAMSUNG 3570R/370R/470R/450R/510R/4450RV */ |
3bd6bce3 HG |
367 | .matches = { |
368 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
369 | DMI_MATCH(DMI_PRODUCT_NAME, | |
370 | "3570R/370R/470R/450R/510R/4450RV"), | |
371 | }, | |
372 | }, | |
bbf03861 HG |
373 | { |
374 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1557060 */ | |
375 | .callback = video_detect_force_video, | |
3b6740bd | 376 | /* SAMSUNG 670Z5E */ |
bbf03861 HG |
377 | .matches = { |
378 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
379 | DMI_MATCH(DMI_PRODUCT_NAME, "670Z5E"), | |
380 | }, | |
381 | }, | |
3bd6bce3 HG |
382 | { |
383 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1094948 */ | |
384 | .callback = video_detect_force_video, | |
3b6740bd | 385 | /* SAMSUNG 730U3E/740U3E */ |
3bd6bce3 HG |
386 | .matches = { |
387 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
388 | DMI_MATCH(DMI_PRODUCT_NAME, "730U3E/740U3E"), | |
389 | }, | |
390 | }, | |
391 | { | |
392 | /* https://bugs.freedesktop.org/show_bug.cgi?id=87286 */ | |
393 | .callback = video_detect_force_video, | |
3b6740bd | 394 | /* SAMSUNG 900X3C/900X3D/900X3E/900X4C/900X4D */ |
3bd6bce3 HG |
395 | .matches = { |
396 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
397 | DMI_MATCH(DMI_PRODUCT_NAME, | |
398 | "900X3C/900X3D/900X3E/900X4C/900X4D"), | |
399 | }, | |
400 | }, | |
61f9738d HG |
401 | { |
402 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1272633 */ | |
403 | .callback = video_detect_force_video, | |
3b6740bd | 404 | /* Dell XPS14 L421X */ |
61f9738d HG |
405 | .matches = { |
406 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
407 | DMI_MATCH(DMI_PRODUCT_NAME, "XPS L421X"), | |
408 | }, | |
409 | }, | |
3bd6bce3 HG |
410 | { |
411 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */ | |
412 | .callback = video_detect_force_video, | |
3b6740bd | 413 | /* Dell XPS15 L521X */ |
3bd6bce3 HG |
414 | .matches = { |
415 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
416 | DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"), | |
417 | }, | |
418 | }, | |
49eb5208 AL |
419 | { |
420 | /* https://bugzilla.kernel.org/show_bug.cgi?id=108971 */ | |
421 | .callback = video_detect_force_video, | |
3b6740bd | 422 | /* SAMSUNG 530U4E/540U4E */ |
49eb5208 AL |
423 | .matches = { |
424 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
425 | DMI_MATCH(DMI_PRODUCT_NAME, "530U4E/540U4E"), | |
426 | }, | |
427 | }, | |
b226faab | 428 | { |
60f1fac2 | 429 | /* https://bugs.launchpad.net/bugs/1894667 */ |
b226faab | 430 | .callback = video_detect_force_video, |
3b6740bd | 431 | /* HP 635 Notebook */ |
b226faab AH |
432 | .matches = { |
433 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
434 | DMI_MATCH(DMI_PRODUCT_NAME, "HP 635 Notebook PC"), | |
435 | }, | |
436 | }, | |
3bd6bce3 HG |
437 | |
438 | /* Non win8 machines which need native backlight nevertheless */ | |
584d8d1e HG |
439 | { |
440 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1201530 */ | |
441 | .callback = video_detect_force_native, | |
3b6740bd | 442 | /* Lenovo Ideapad S405 */ |
584d8d1e HG |
443 | .matches = { |
444 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
445 | DMI_MATCH(DMI_BOARD_NAME, "Lenovo IdeaPad S405"), | |
446 | }, | |
447 | }, | |
3bd6bce3 HG |
448 | { |
449 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */ | |
450 | .callback = video_detect_force_native, | |
3b6740bd | 451 | /* Lenovo Ideapad Z570 */ |
3bd6bce3 HG |
452 | .matches = { |
453 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
2d11eae4 | 454 | DMI_MATCH(DMI_PRODUCT_VERSION, "Ideapad Z570"), |
3bd6bce3 HG |
455 | }, |
456 | }, | |
53870cf0 AM |
457 | { |
458 | .callback = video_detect_force_native, | |
3b6740bd | 459 | /* Lenovo E41-25 */ |
53870cf0 AM |
460 | .matches = { |
461 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
462 | DMI_MATCH(DMI_PRODUCT_NAME, "81FS"), | |
463 | }, | |
464 | }, | |
465 | { | |
466 | .callback = video_detect_force_native, | |
3b6740bd | 467 | /* Lenovo E41-45 */ |
53870cf0 AM |
468 | .matches = { |
469 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
470 | DMI_MATCH(DMI_PRODUCT_NAME, "82BK"), | |
471 | }, | |
472 | }, | |
3bd6bce3 HG |
473 | { |
474 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */ | |
475 | .callback = video_detect_force_native, | |
3b6740bd | 476 | /* Apple MacBook Pro 12,1 */ |
3bd6bce3 HG |
477 | .matches = { |
478 | DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), | |
479 | DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"), | |
480 | }, | |
481 | }, | |
03c440a2 HG |
482 | { |
483 | .callback = video_detect_force_native, | |
484 | /* Dell Inspiron N4010 */ | |
485 | .matches = { | |
486 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
487 | DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron N4010"), | |
488 | }, | |
489 | }, | |
4b4b3b20 HG |
490 | { |
491 | .callback = video_detect_force_native, | |
3b6740bd | 492 | /* Dell Vostro V131 */ |
4b4b3b20 HG |
493 | .matches = { |
494 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
495 | DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"), | |
496 | }, | |
497 | }, | |
350fa038 HG |
498 | { |
499 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1123661 */ | |
500 | .callback = video_detect_force_native, | |
3b6740bd | 501 | /* Dell XPS 17 L702X */ |
350fa038 HG |
502 | .matches = { |
503 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
504 | DMI_MATCH(DMI_PRODUCT_NAME, "Dell System XPS L702X"), | |
505 | }, | |
506 | }, | |
d37efb79 SYLF |
507 | { |
508 | .callback = video_detect_force_native, | |
3b6740bd | 509 | /* Dell Precision 7510 */ |
d37efb79 SYLF |
510 | .matches = { |
511 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
512 | DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"), | |
513 | }, | |
514 | }, | |
5e7a3bf6 HG |
515 | { |
516 | .callback = video_detect_force_native, | |
517 | /* Acer Aspire 3830TG */ | |
518 | .matches = { | |
519 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
520 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3830TG"), | |
521 | }, | |
522 | }, | |
8ba5fc4c HG |
523 | { |
524 | .callback = video_detect_force_native, | |
525 | /* Acer Aspire 4810T */ | |
526 | .matches = { | |
527 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
528 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 4810T"), | |
529 | }, | |
530 | }, | |
1c8fbc1f HG |
531 | { |
532 | .callback = video_detect_force_native, | |
3b6740bd | 533 | /* Acer Aspire 5738z */ |
1c8fbc1f HG |
534 | .matches = { |
535 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
536 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"), | |
537 | DMI_MATCH(DMI_BOARD_NAME, "JV50"), | |
538 | }, | |
539 | }, | |
0172df18 HG |
540 | { |
541 | /* https://bugzilla.redhat.com/show_bug.cgi?id=1012674 */ | |
542 | .callback = video_detect_force_native, | |
543 | /* Acer Aspire 5741 */ | |
544 | .matches = { | |
545 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
546 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5741"), | |
547 | }, | |
548 | }, | |
549 | { | |
550 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42993 */ | |
551 | .callback = video_detect_force_native, | |
552 | /* Acer Aspire 5750 */ | |
553 | .matches = { | |
554 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
555 | DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5750"), | |
556 | }, | |
557 | }, | |
558 | { | |
559 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42833 */ | |
560 | .callback = video_detect_force_native, | |
561 | /* Acer Extensa 5235 */ | |
562 | .matches = { | |
563 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
564 | DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5235"), | |
565 | }, | |
566 | }, | |
567 | { | |
568 | .callback = video_detect_force_native, | |
569 | /* Acer TravelMate 4750 */ | |
570 | .matches = { | |
571 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
572 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4750"), | |
573 | }, | |
574 | }, | |
c41c36e9 PM |
575 | { |
576 | /* https://bugzilla.kernel.org/show_bug.cgi?id=207835 */ | |
577 | .callback = video_detect_force_native, | |
3b6740bd | 578 | /* Acer TravelMate 5735Z */ |
c41c36e9 PM |
579 | .matches = { |
580 | DMI_MATCH(DMI_SYS_VENDOR, "Acer"), | |
581 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5735Z"), | |
582 | DMI_MATCH(DMI_BOARD_NAME, "BA51_MV"), | |
583 | }, | |
584 | }, | |
0172df18 HG |
585 | { |
586 | /* https://bugzilla.kernel.org/show_bug.cgi?id=36322 */ | |
587 | .callback = video_detect_force_native, | |
588 | /* Acer TravelMate 5760 */ | |
589 | .matches = { | |
590 | DMI_MATCH(DMI_BOARD_VENDOR, "Acer"), | |
591 | DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5760"), | |
592 | }, | |
593 | }, | |
2dfbacc6 | 594 | { |
c2d6920e HG |
595 | .callback = video_detect_force_native, |
596 | /* ASUSTeK COMPUTER INC. GA401 */ | |
597 | .matches = { | |
2dfbacc6 LJ |
598 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), |
599 | DMI_MATCH(DMI_PRODUCT_NAME, "GA401"), | |
600 | }, | |
601 | }, | |
602 | { | |
c2d6920e HG |
603 | .callback = video_detect_force_native, |
604 | /* ASUSTeK COMPUTER INC. GA502 */ | |
605 | .matches = { | |
2dfbacc6 LJ |
606 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), |
607 | DMI_MATCH(DMI_PRODUCT_NAME, "GA502"), | |
608 | }, | |
609 | }, | |
610 | { | |
c2d6920e HG |
611 | .callback = video_detect_force_native, |
612 | /* ASUSTeK COMPUTER INC. GA503 */ | |
613 | .matches = { | |
2dfbacc6 LJ |
614 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), |
615 | DMI_MATCH(DMI_PRODUCT_NAME, "GA503"), | |
616 | }, | |
617 | }, | |
e6b3086f HG |
618 | { |
619 | .callback = video_detect_force_native, | |
620 | /* Asus U46E */ | |
621 | .matches = { | |
622 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), | |
623 | DMI_MATCH(DMI_PRODUCT_NAME, "U46E"), | |
624 | }, | |
625 | }, | |
1e3344d6 HG |
626 | { |
627 | .callback = video_detect_force_native, | |
628 | /* Asus UX303UB */ | |
629 | .matches = { | |
630 | DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), | |
631 | DMI_MATCH(DMI_PRODUCT_NAME, "UX303UB"), | |
632 | }, | |
633 | }, | |
9dcb3423 HG |
634 | { |
635 | .callback = video_detect_force_native, | |
636 | /* HP EliteBook 8460p */ | |
637 | .matches = { | |
638 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
639 | DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook 8460p"), | |
640 | }, | |
641 | }, | |
d77596d4 HG |
642 | { |
643 | .callback = video_detect_force_native, | |
644 | /* HP Pavilion g6-1d80nr / B4U19UA */ | |
645 | .matches = { | |
646 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
647 | DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"), | |
648 | DMI_MATCH(DMI_PRODUCT_SKU, "B4U19UA"), | |
649 | }, | |
650 | }, | |
8991d7d9 HG |
651 | { |
652 | .callback = video_detect_force_native, | |
653 | /* Samsung N150P */ | |
654 | .matches = { | |
655 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
656 | DMI_MATCH(DMI_PRODUCT_NAME, "N150P"), | |
657 | DMI_MATCH(DMI_BOARD_NAME, "N150P"), | |
658 | }, | |
659 | }, | |
660 | { | |
661 | .callback = video_detect_force_native, | |
662 | /* Samsung N145P/N250P/N260P */ | |
663 | .matches = { | |
664 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
665 | DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"), | |
666 | DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"), | |
667 | }, | |
668 | }, | |
669 | { | |
670 | .callback = video_detect_force_native, | |
671 | /* Samsung N250P */ | |
672 | .matches = { | |
673 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), | |
674 | DMI_MATCH(DMI_PRODUCT_NAME, "N250P"), | |
675 | DMI_MATCH(DMI_BOARD_NAME, "N250P"), | |
676 | }, | |
677 | }, | |
84d56f32 HG |
678 | { |
679 | /* https://bugzilla.kernel.org/show_bug.cgi?id=202401 */ | |
680 | .callback = video_detect_force_native, | |
681 | /* Sony Vaio VPCEH3U1E */ | |
682 | .matches = { | |
683 | DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), | |
684 | DMI_MATCH(DMI_PRODUCT_NAME, "VPCEH3U1E"), | |
685 | }, | |
686 | }, | |
f5a6ff92 HG |
687 | { |
688 | .callback = video_detect_force_native, | |
689 | /* Sony Vaio VPCY11S1E */ | |
690 | .matches = { | |
691 | DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), | |
692 | DMI_MATCH(DMI_PRODUCT_NAME, "VPCY11S1E"), | |
693 | }, | |
694 | }, | |
10212754 | 695 | |
c5b94f5b HG |
696 | /* |
697 | * These Toshibas have a broken acpi-video interface for brightness | |
698 | * control. They also have an issue where the panel is off after | |
699 | * suspend until a special firmware call is made to turn it back | |
700 | * on. This is handled by the toshiba_acpi kernel module, so that | |
701 | * module must be enabled for these models to work correctly. | |
702 | */ | |
703 | { | |
704 | /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ | |
705 | .callback = video_detect_force_native, | |
706 | /* Toshiba Portégé R700 */ | |
707 | .matches = { | |
708 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
709 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"), | |
710 | }, | |
711 | }, | |
712 | { | |
713 | /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */ | |
714 | /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ | |
715 | .callback = video_detect_force_native, | |
716 | /* Toshiba Satellite/Portégé R830 */ | |
717 | .matches = { | |
718 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
719 | DMI_MATCH(DMI_PRODUCT_NAME, "R830"), | |
720 | }, | |
721 | }, | |
722 | { | |
723 | .callback = video_detect_force_native, | |
724 | /* Toshiba Satellite/Portégé Z830 */ | |
725 | .matches = { | |
726 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
727 | DMI_MATCH(DMI_PRODUCT_NAME, "Z830"), | |
728 | }, | |
729 | }, | |
730 | ||
f46acc1e HG |
731 | /* |
732 | * Models which have nvidia-ec-wmi support, but should not use it. | |
733 | * Note this indicates a likely firmware bug on these models and should | |
734 | * be revisited if/when Linux gets support for dynamic mux mode. | |
735 | */ | |
736 | { | |
737 | .callback = video_detect_force_native, | |
738 | /* Dell G15 5515 */ | |
739 | .matches = { | |
740 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
741 | DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"), | |
742 | }, | |
743 | }, | |
89b04114 CLKA |
744 | { |
745 | .callback = video_detect_force_native, | |
746 | .matches = { | |
747 | DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), | |
748 | DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 15 3535"), | |
749 | }, | |
750 | }, | |
084940d5 CC |
751 | { }, |
752 | }; | |
753 | ||
e9cf4d9b DO |
754 | static bool google_cros_ec_present(void) |
755 | { | |
59dc2a7e | 756 | return acpi_dev_found("GOOG0004") || acpi_dev_found("GOOG000C"); |
e9cf4d9b DO |
757 | } |
758 | ||
a5df4252 HG |
759 | /* |
760 | * Windows 8 and newer no longer use the ACPI video interface, so it often | |
761 | * does not work. So on win8+ systems prefer native brightness control. | |
762 | * Chromebooks should always prefer native backlight control. | |
763 | */ | |
764 | static bool prefer_native_over_acpi_video(void) | |
765 | { | |
766 | return acpi_osi_is_win8() || google_cros_ec_present(); | |
767 | } | |
768 | ||
c3d6de69 | 769 | /* |
87521e16 HG |
770 | * Determine which type of backlight interface to use on this system, |
771 | * First check cmdline, then dmi quirks, then do autodetect. | |
c3d6de69 | 772 | */ |
78dfc9d1 | 773 | enum acpi_backlight_type __acpi_video_get_backlight_type(bool native, bool *auto_detect) |
c3d6de69 | 774 | { |
87521e16 | 775 | static DEFINE_MUTEX(init_mutex); |
fe7aebb4 | 776 | static bool nvidia_wmi_ec_present; |
b0935f11 | 777 | static bool apple_gmux_present; |
2600bfa3 | 778 | static bool native_available; |
87521e16 HG |
779 | static bool init_done; |
780 | static long video_caps; | |
084940d5 | 781 | |
87521e16 HG |
782 | /* Parse cmdline, dmi and acpi only once */ |
783 | mutex_lock(&init_mutex); | |
784 | if (!init_done) { | |
785 | acpi_video_parse_cmdline(); | |
084940d5 | 786 | dmi_check_system(video_detect_dmi_table); |
87521e16 | 787 | acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, |
2263576c | 788 | ACPI_UINT32_MAX, find_video, NULL, |
87521e16 | 789 | &video_caps, NULL); |
fe7aebb4 | 790 | nvidia_wmi_ec_present = nvidia_wmi_ec_supported(); |
b0935f11 | 791 | apple_gmux_present = apple_gmux_detect(NULL, NULL); |
87521e16 | 792 | init_done = true; |
c3d6de69 | 793 | } |
2600bfa3 HG |
794 | if (native) |
795 | native_available = true; | |
87521e16 HG |
796 | mutex_unlock(&init_mutex); |
797 | ||
78dfc9d1 HG |
798 | if (auto_detect) |
799 | *auto_detect = false; | |
800 | ||
b39be9f4 HG |
801 | /* |
802 | * The below heuristics / detection steps are in order of descending | |
803 | * presedence. The commandline takes presedence over anything else. | |
804 | */ | |
87521e16 HG |
805 | if (acpi_backlight_cmdline != acpi_backlight_undef) |
806 | return acpi_backlight_cmdline; | |
807 | ||
b39be9f4 | 808 | /* DMI quirks override any autodetection. */ |
87521e16 HG |
809 | if (acpi_backlight_dmi != acpi_backlight_undef) |
810 | return acpi_backlight_dmi; | |
811 | ||
78dfc9d1 HG |
812 | if (auto_detect) |
813 | *auto_detect = true; | |
814 | ||
fe7aebb4 HG |
815 | /* Special cases such as nvidia_wmi_ec and apple gmux. */ |
816 | if (nvidia_wmi_ec_present) | |
817 | return acpi_backlight_nvidia_wmi_ec; | |
818 | ||
b0935f11 | 819 | if (apple_gmux_present) |
21245df3 HG |
820 | return acpi_backlight_apple_gmux; |
821 | ||
a5df4252 HG |
822 | /* Use ACPI video if available, except when native should be preferred. */ |
823 | if ((video_caps & ACPI_VIDEO_BACKLIGHT) && | |
824 | !(native_available && prefer_native_over_acpi_video())) | |
825 | return acpi_backlight_video; | |
59dc2a7e | 826 | |
a5df4252 | 827 | /* Use native if available */ |
fb1836c9 | 828 | if (native_available) |
a5df4252 | 829 | return acpi_backlight_native; |
87521e16 | 830 | |
fb1836c9 | 831 | /* No ACPI video/native (old hw), use vendor specific fw methods. */ |
b39be9f4 | 832 | return acpi_backlight_vendor; |
c3d6de69 | 833 | } |
78dfc9d1 | 834 | EXPORT_SYMBOL(__acpi_video_get_backlight_type); |