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8ee1c3db MG |
1 | /* |
2 | * Copyright 2008 Intel Corporation <hong.liu@intel.com> | |
3 | * Copyright 2008 Red Hat <mjg@redhat.com> | |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining | |
6 | * a copy of this software and associated documentation files (the | |
7 | * "Software"), to deal in the Software without restriction, including | |
8 | * without limitation the rights to use, copy, modify, merge, publish, | |
9 | * distribute, sub license, and/or sell copies of the Software, and to | |
10 | * permit persons to whom the Software is furnished to do so, subject to | |
11 | * the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice (including the | |
14 | * next paragraph) shall be included in all copies or substantial | |
15 | * portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
20 | * NON-INFRINGEMENT. IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE | |
21 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
22 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
23 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
24 | * SOFTWARE. | |
25 | * | |
26 | */ | |
27 | ||
28 | #include <linux/acpi.h> | |
b705120e | 29 | #include <linux/acpi_io.h> |
74a365b3 | 30 | #include <acpi/video.h> |
8ee1c3db MG |
31 | |
32 | #include "drmP.h" | |
33 | #include "i915_drm.h" | |
34 | #include "i915_drv.h" | |
a9573556 | 35 | #include "intel_drv.h" |
8ee1c3db MG |
36 | |
37 | #define PCI_ASLE 0xe4 | |
8ee1c3db MG |
38 | #define PCI_ASLS 0xfc |
39 | ||
8ee1c3db MG |
40 | #define OPREGION_HEADER_OFFSET 0 |
41 | #define OPREGION_ACPI_OFFSET 0x100 | |
82d3c90c CW |
42 | #define ACPI_CLID 0x01ac /* current lid state indicator */ |
43 | #define ACPI_CDCK 0x01b0 /* current docking state indicator */ | |
8ee1c3db MG |
44 | #define OPREGION_SWSCI_OFFSET 0x200 |
45 | #define OPREGION_ASLE_OFFSET 0x300 | |
44834a67 | 46 | #define OPREGION_VBT_OFFSET 0x400 |
8ee1c3db MG |
47 | |
48 | #define OPREGION_SIGNATURE "IntelGraphicsMem" | |
49 | #define MBOX_ACPI (1<<0) | |
50 | #define MBOX_SWSCI (1<<1) | |
51 | #define MBOX_ASLE (1<<2) | |
52 | ||
53 | struct opregion_header { | |
54 | u8 signature[16]; | |
55 | u32 size; | |
56 | u32 opregion_ver; | |
57 | u8 bios_ver[32]; | |
58 | u8 vbios_ver[16]; | |
59 | u8 driver_ver[16]; | |
60 | u32 mboxes; | |
61 | u8 reserved[164]; | |
62 | } __attribute__((packed)); | |
63 | ||
64 | /* OpRegion mailbox #1: public ACPI methods */ | |
65 | struct opregion_acpi { | |
66 | u32 drdy; /* driver readiness */ | |
67 | u32 csts; /* notification status */ | |
68 | u32 cevt; /* current event */ | |
69 | u8 rsvd1[20]; | |
70 | u32 didl[8]; /* supported display devices ID list */ | |
71 | u32 cpdl[8]; /* currently presented display list */ | |
72 | u32 cadl[8]; /* currently active display list */ | |
73 | u32 nadl[8]; /* next active devices list */ | |
74 | u32 aslp; /* ASL sleep time-out */ | |
75 | u32 tidx; /* toggle table index */ | |
76 | u32 chpd; /* current hotplug enable indicator */ | |
77 | u32 clid; /* current lid state*/ | |
78 | u32 cdck; /* current docking state */ | |
79 | u32 sxsw; /* Sx state resume */ | |
80 | u32 evts; /* ASL supported events */ | |
81 | u32 cnot; /* current OS notification */ | |
82 | u32 nrdy; /* driver status */ | |
83 | u8 rsvd2[60]; | |
84 | } __attribute__((packed)); | |
85 | ||
86 | /* OpRegion mailbox #2: SWSCI */ | |
87 | struct opregion_swsci { | |
88 | u32 scic; /* SWSCI command|status|data */ | |
89 | u32 parm; /* command parameters */ | |
90 | u32 dslp; /* driver sleep time-out */ | |
91 | u8 rsvd[244]; | |
92 | } __attribute__((packed)); | |
93 | ||
94 | /* OpRegion mailbox #3: ASLE */ | |
95 | struct opregion_asle { | |
96 | u32 ardy; /* driver readiness */ | |
97 | u32 aslc; /* ASLE interrupt command */ | |
98 | u32 tche; /* technology enabled indicator */ | |
99 | u32 alsi; /* current ALS illuminance reading */ | |
100 | u32 bclp; /* backlight brightness to set */ | |
101 | u32 pfit; /* panel fitting state */ | |
102 | u32 cblv; /* current brightness level */ | |
103 | u16 bclm[20]; /* backlight level duty cycle mapping table */ | |
104 | u32 cpfm; /* current panel fitting mode */ | |
105 | u32 epfm; /* enabled panel fitting modes */ | |
106 | u8 plut[74]; /* panel LUT and identifier */ | |
107 | u32 pfmb; /* PWM freq and min brightness */ | |
108 | u8 rsvd[102]; | |
109 | } __attribute__((packed)); | |
110 | ||
111 | /* ASLE irq request bits */ | |
112 | #define ASLE_SET_ALS_ILLUM (1 << 0) | |
113 | #define ASLE_SET_BACKLIGHT (1 << 1) | |
114 | #define ASLE_SET_PFIT (1 << 2) | |
115 | #define ASLE_SET_PWM_FREQ (1 << 3) | |
116 | #define ASLE_REQ_MSK 0xf | |
117 | ||
118 | /* response bits of ASLE irq request */ | |
01c66889 ZY |
119 | #define ASLE_ALS_ILLUM_FAILED (1<<10) |
120 | #define ASLE_BACKLIGHT_FAILED (1<<12) | |
121 | #define ASLE_PFIT_FAILED (1<<14) | |
122 | #define ASLE_PWM_FREQ_FAILED (1<<16) | |
8ee1c3db MG |
123 | |
124 | /* ASLE backlight brightness to set */ | |
125 | #define ASLE_BCLP_VALID (1<<31) | |
126 | #define ASLE_BCLP_MSK (~(1<<31)) | |
127 | ||
128 | /* ASLE panel fitting request */ | |
129 | #define ASLE_PFIT_VALID (1<<31) | |
130 | #define ASLE_PFIT_CENTER (1<<0) | |
131 | #define ASLE_PFIT_STRETCH_TEXT (1<<1) | |
132 | #define ASLE_PFIT_STRETCH_GFX (1<<2) | |
133 | ||
134 | /* PWM frequency and minimum brightness */ | |
135 | #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) | |
136 | #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) | |
137 | #define ASLE_PFMB_PWM_MASK (0x7ffffe00) | |
138 | #define ASLE_PFMB_PWM_VALID (1<<31) | |
139 | ||
140 | #define ASLE_CBLV_VALID (1<<31) | |
141 | ||
74a365b3 MG |
142 | #define ACPI_OTHER_OUTPUT (0<<8) |
143 | #define ACPI_VGA_OUTPUT (1<<8) | |
144 | #define ACPI_TV_OUTPUT (2<<8) | |
145 | #define ACPI_DIGITAL_OUTPUT (3<<8) | |
146 | #define ACPI_LVDS_OUTPUT (4<<8) | |
147 | ||
44834a67 | 148 | #ifdef CONFIG_ACPI |
8ee1c3db MG |
149 | static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) |
150 | { | |
151 | struct drm_i915_private *dev_priv = dev->dev_private; | |
152 | struct opregion_asle *asle = dev_priv->opregion.asle; | |
a9573556 | 153 | u32 max; |
8ee1c3db MG |
154 | |
155 | if (!(bclp & ASLE_BCLP_VALID)) | |
862daefc | 156 | return ASLE_BACKLIGHT_FAILED; |
8ee1c3db MG |
157 | |
158 | bclp &= ASLE_BCLP_MSK; | |
a9573556 | 159 | if (bclp > 255) |
862daefc | 160 | return ASLE_BACKLIGHT_FAILED; |
8ee1c3db | 161 | |
a9573556 CW |
162 | max = intel_panel_get_max_backlight(dev); |
163 | intel_panel_set_backlight(dev, bclp * max / 255); | |
8ee1c3db MG |
164 | asle->cblv = (bclp*0x64)/0xff | ASLE_CBLV_VALID; |
165 | ||
166 | return 0; | |
167 | } | |
168 | ||
169 | static u32 asle_set_als_illum(struct drm_device *dev, u32 alsi) | |
170 | { | |
171 | /* alsi is the current ALS reading in lux. 0 indicates below sensor | |
172 | range, 0xffff indicates above sensor range. 1-0xfffe are valid */ | |
173 | return 0; | |
174 | } | |
175 | ||
176 | static u32 asle_set_pwm_freq(struct drm_device *dev, u32 pfmb) | |
177 | { | |
178 | struct drm_i915_private *dev_priv = dev->dev_private; | |
179 | if (pfmb & ASLE_PFMB_PWM_VALID) { | |
180 | u32 blc_pwm_ctl = I915_READ(BLC_PWM_CTL); | |
181 | u32 pwm = pfmb & ASLE_PFMB_PWM_MASK; | |
182 | blc_pwm_ctl &= BACKLIGHT_DUTY_CYCLE_MASK; | |
183 | pwm = pwm >> 9; | |
184 | /* FIXME - what do we do with the PWM? */ | |
185 | } | |
186 | return 0; | |
187 | } | |
188 | ||
189 | static u32 asle_set_pfit(struct drm_device *dev, u32 pfit) | |
190 | { | |
191 | /* Panel fitting is currently controlled by the X code, so this is a | |
192 | noop until modesetting support works fully */ | |
193 | if (!(pfit & ASLE_PFIT_VALID)) | |
862daefc | 194 | return ASLE_PFIT_FAILED; |
8ee1c3db MG |
195 | return 0; |
196 | } | |
197 | ||
3b617967 | 198 | void intel_opregion_asle_intr(struct drm_device *dev) |
8ee1c3db MG |
199 | { |
200 | struct drm_i915_private *dev_priv = dev->dev_private; | |
201 | struct opregion_asle *asle = dev_priv->opregion.asle; | |
202 | u32 asle_stat = 0; | |
203 | u32 asle_req; | |
204 | ||
205 | if (!asle) | |
206 | return; | |
207 | ||
208 | asle_req = asle->aslc & ASLE_REQ_MSK; | |
209 | ||
210 | if (!asle_req) { | |
44d98a61 | 211 | DRM_DEBUG_DRIVER("non asle set request??\n"); |
8ee1c3db MG |
212 | return; |
213 | } | |
214 | ||
215 | if (asle_req & ASLE_SET_ALS_ILLUM) | |
216 | asle_stat |= asle_set_als_illum(dev, asle->alsi); | |
217 | ||
218 | if (asle_req & ASLE_SET_BACKLIGHT) | |
219 | asle_stat |= asle_set_backlight(dev, asle->bclp); | |
220 | ||
221 | if (asle_req & ASLE_SET_PFIT) | |
222 | asle_stat |= asle_set_pfit(dev, asle->pfit); | |
223 | ||
224 | if (asle_req & ASLE_SET_PWM_FREQ) | |
225 | asle_stat |= asle_set_pwm_freq(dev, asle->pfmb); | |
226 | ||
227 | asle->aslc = asle_stat; | |
228 | } | |
229 | ||
3b617967 | 230 | void intel_opregion_gse_intr(struct drm_device *dev) |
01c66889 ZY |
231 | { |
232 | struct drm_i915_private *dev_priv = dev->dev_private; | |
233 | struct opregion_asle *asle = dev_priv->opregion.asle; | |
234 | u32 asle_stat = 0; | |
235 | u32 asle_req; | |
236 | ||
237 | if (!asle) | |
238 | return; | |
239 | ||
240 | asle_req = asle->aslc & ASLE_REQ_MSK; | |
241 | ||
242 | if (!asle_req) { | |
243 | DRM_DEBUG_DRIVER("non asle set request??\n"); | |
244 | return; | |
245 | } | |
246 | ||
247 | if (asle_req & ASLE_SET_ALS_ILLUM) { | |
248 | DRM_DEBUG_DRIVER("Illum is not supported\n"); | |
249 | asle_stat |= ASLE_ALS_ILLUM_FAILED; | |
250 | } | |
251 | ||
252 | if (asle_req & ASLE_SET_BACKLIGHT) | |
a9573556 | 253 | asle_stat |= asle_set_backlight(dev, asle->bclp); |
01c66889 ZY |
254 | |
255 | if (asle_req & ASLE_SET_PFIT) { | |
256 | DRM_DEBUG_DRIVER("Pfit is not supported\n"); | |
257 | asle_stat |= ASLE_PFIT_FAILED; | |
258 | } | |
259 | ||
260 | if (asle_req & ASLE_SET_PWM_FREQ) { | |
261 | DRM_DEBUG_DRIVER("PWM freq is not supported\n"); | |
262 | asle_stat |= ASLE_PWM_FREQ_FAILED; | |
263 | } | |
264 | ||
265 | asle->aslc = asle_stat; | |
266 | } | |
8ee1c3db MG |
267 | #define ASLE_ALS_EN (1<<0) |
268 | #define ASLE_BLC_EN (1<<1) | |
269 | #define ASLE_PFIT_EN (1<<2) | |
270 | #define ASLE_PFMB_EN (1<<3) | |
271 | ||
3b617967 | 272 | void intel_opregion_enable_asle(struct drm_device *dev) |
8ee1c3db MG |
273 | { |
274 | struct drm_i915_private *dev_priv = dev->dev_private; | |
275 | struct opregion_asle *asle = dev_priv->opregion.asle; | |
276 | ||
277 | if (asle) { | |
1ec14ad3 | 278 | if (IS_MOBILE(dev)) |
01c66889 | 279 | intel_enable_asle(dev); |
8ee1c3db MG |
280 | |
281 | asle->tche = ASLE_ALS_EN | ASLE_BLC_EN | ASLE_PFIT_EN | | |
282 | ASLE_PFMB_EN; | |
283 | asle->ardy = 1; | |
284 | } | |
285 | } | |
286 | ||
287 | #define ACPI_EV_DISPLAY_SWITCH (1<<0) | |
288 | #define ACPI_EV_LID (1<<1) | |
289 | #define ACPI_EV_DOCK (1<<2) | |
290 | ||
291 | static struct intel_opregion *system_opregion; | |
292 | ||
b358d0a6 HE |
293 | static int intel_opregion_video_event(struct notifier_block *nb, |
294 | unsigned long val, void *data) | |
8ee1c3db MG |
295 | { |
296 | /* The only video events relevant to opregion are 0x80. These indicate | |
297 | either a docking event, lid switch or display switch request. In | |
298 | Linux, these are handled by the dock, button and video drivers. | |
f5a3d0c4 | 299 | */ |
8ee1c3db MG |
300 | |
301 | struct opregion_acpi *acpi; | |
f5a3d0c4 MG |
302 | struct acpi_bus_event *event = data; |
303 | int ret = NOTIFY_OK; | |
304 | ||
305 | if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) | |
306 | return NOTIFY_DONE; | |
8ee1c3db MG |
307 | |
308 | if (!system_opregion) | |
309 | return NOTIFY_DONE; | |
310 | ||
311 | acpi = system_opregion->acpi; | |
f5a3d0c4 MG |
312 | |
313 | if (event->type == 0x80 && !(acpi->cevt & 0x1)) | |
314 | ret = NOTIFY_BAD; | |
315 | ||
8ee1c3db MG |
316 | acpi->csts = 0; |
317 | ||
f5a3d0c4 | 318 | return ret; |
8ee1c3db MG |
319 | } |
320 | ||
321 | static struct notifier_block intel_opregion_notifier = { | |
322 | .notifier_call = intel_opregion_video_event, | |
323 | }; | |
324 | ||
74a365b3 MG |
325 | /* |
326 | * Initialise the DIDL field in opregion. This passes a list of devices to | |
327 | * the firmware. Values are defined by section B.4.2 of the ACPI specification | |
328 | * (version 3) | |
329 | */ | |
330 | ||
331 | static void intel_didl_outputs(struct drm_device *dev) | |
332 | { | |
333 | struct drm_i915_private *dev_priv = dev->dev_private; | |
334 | struct intel_opregion *opregion = &dev_priv->opregion; | |
335 | struct drm_connector *connector; | |
3143751f ZR |
336 | acpi_handle handle; |
337 | struct acpi_device *acpi_dev, *acpi_cdev, *acpi_video_bus = NULL; | |
338 | unsigned long long device_id; | |
339 | acpi_status status; | |
74a365b3 MG |
340 | int i = 0; |
341 | ||
3143751f ZR |
342 | handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev); |
343 | if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &acpi_dev))) | |
344 | return; | |
345 | ||
346 | if (acpi_is_video_device(acpi_dev)) | |
347 | acpi_video_bus = acpi_dev; | |
348 | else { | |
349 | list_for_each_entry(acpi_cdev, &acpi_dev->children, node) { | |
350 | if (acpi_is_video_device(acpi_cdev)) { | |
351 | acpi_video_bus = acpi_cdev; | |
352 | break; | |
353 | } | |
354 | } | |
355 | } | |
356 | ||
357 | if (!acpi_video_bus) { | |
358 | printk(KERN_WARNING "No ACPI video bus found\n"); | |
359 | return; | |
360 | } | |
361 | ||
362 | list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) { | |
363 | if (i >= 8) { | |
364 | dev_printk (KERN_ERR, &dev->pdev->dev, | |
365 | "More than 8 outputs detected\n"); | |
366 | return; | |
367 | } | |
368 | status = | |
369 | acpi_evaluate_integer(acpi_cdev->handle, "_ADR", | |
370 | NULL, &device_id); | |
371 | if (ACPI_SUCCESS(status)) { | |
372 | if (!device_id) | |
373 | goto blind_set; | |
374 | opregion->acpi->didl[i] = (u32)(device_id & 0x0f0f); | |
375 | i++; | |
376 | } | |
377 | } | |
378 | ||
379 | end: | |
380 | /* If fewer than 8 outputs, the list must be null terminated */ | |
381 | if (i < 8) | |
382 | opregion->acpi->didl[i] = 0; | |
383 | return; | |
384 | ||
385 | blind_set: | |
386 | i = 0; | |
74a365b3 MG |
387 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
388 | int output_type = ACPI_OTHER_OUTPUT; | |
389 | if (i >= 8) { | |
390 | dev_printk (KERN_ERR, &dev->pdev->dev, | |
391 | "More than 8 outputs detected\n"); | |
392 | return; | |
393 | } | |
394 | switch (connector->connector_type) { | |
395 | case DRM_MODE_CONNECTOR_VGA: | |
396 | case DRM_MODE_CONNECTOR_DVIA: | |
397 | output_type = ACPI_VGA_OUTPUT; | |
398 | break; | |
399 | case DRM_MODE_CONNECTOR_Composite: | |
400 | case DRM_MODE_CONNECTOR_SVIDEO: | |
401 | case DRM_MODE_CONNECTOR_Component: | |
402 | case DRM_MODE_CONNECTOR_9PinDIN: | |
403 | output_type = ACPI_TV_OUTPUT; | |
404 | break; | |
405 | case DRM_MODE_CONNECTOR_DVII: | |
406 | case DRM_MODE_CONNECTOR_DVID: | |
407 | case DRM_MODE_CONNECTOR_DisplayPort: | |
408 | case DRM_MODE_CONNECTOR_HDMIA: | |
409 | case DRM_MODE_CONNECTOR_HDMIB: | |
410 | output_type = ACPI_DIGITAL_OUTPUT; | |
411 | break; | |
412 | case DRM_MODE_CONNECTOR_LVDS: | |
413 | output_type = ACPI_LVDS_OUTPUT; | |
414 | break; | |
415 | } | |
416 | opregion->acpi->didl[i] |= (1<<31) | output_type | i; | |
417 | i++; | |
418 | } | |
3143751f | 419 | goto end; |
74a365b3 MG |
420 | } |
421 | ||
44834a67 CW |
422 | void intel_opregion_init(struct drm_device *dev) |
423 | { | |
424 | struct drm_i915_private *dev_priv = dev->dev_private; | |
425 | struct intel_opregion *opregion = &dev_priv->opregion; | |
426 | ||
427 | if (!opregion->header) | |
428 | return; | |
429 | ||
430 | if (opregion->acpi) { | |
431 | if (drm_core_check_feature(dev, DRIVER_MODESET)) | |
432 | intel_didl_outputs(dev); | |
433 | ||
434 | /* Notify BIOS we are ready to handle ACPI video ext notifs. | |
435 | * Right now, all the events are handled by the ACPI video module. | |
436 | * We don't actually need to do anything with them. */ | |
437 | opregion->acpi->csts = 0; | |
438 | opregion->acpi->drdy = 1; | |
439 | ||
440 | system_opregion = opregion; | |
441 | register_acpi_notifier(&intel_opregion_notifier); | |
442 | } | |
443 | ||
444 | if (opregion->asle) | |
445 | intel_opregion_enable_asle(dev); | |
446 | } | |
447 | ||
448 | void intel_opregion_fini(struct drm_device *dev) | |
449 | { | |
450 | struct drm_i915_private *dev_priv = dev->dev_private; | |
451 | struct intel_opregion *opregion = &dev_priv->opregion; | |
452 | ||
453 | if (!opregion->header) | |
454 | return; | |
455 | ||
456 | if (opregion->acpi) { | |
457 | opregion->acpi->drdy = 0; | |
458 | ||
459 | system_opregion = NULL; | |
460 | unregister_acpi_notifier(&intel_opregion_notifier); | |
461 | } | |
462 | ||
463 | /* just clear all opregion memory pointers now */ | |
464 | iounmap(opregion->header); | |
465 | opregion->header = NULL; | |
466 | opregion->acpi = NULL; | |
467 | opregion->swsci = NULL; | |
468 | opregion->asle = NULL; | |
469 | opregion->vbt = NULL; | |
470 | } | |
471 | #endif | |
472 | ||
473 | int intel_opregion_setup(struct drm_device *dev) | |
8ee1c3db MG |
474 | { |
475 | struct drm_i915_private *dev_priv = dev->dev_private; | |
476 | struct intel_opregion *opregion = &dev_priv->opregion; | |
477 | void *base; | |
478 | u32 asls, mboxes; | |
479 | int err = 0; | |
480 | ||
481 | pci_read_config_dword(dev->pdev, PCI_ASLS, &asls); | |
44d98a61 | 482 | DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); |
8ee1c3db | 483 | if (asls == 0) { |
44d98a61 | 484 | DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n"); |
8ee1c3db MG |
485 | return -ENOTSUPP; |
486 | } | |
487 | ||
b705120e | 488 | base = acpi_os_ioremap(asls, OPREGION_SIZE); |
8ee1c3db MG |
489 | if (!base) |
490 | return -ENOMEM; | |
491 | ||
44834a67 | 492 | if (memcmp(base, OPREGION_SIGNATURE, 16)) { |
44d98a61 | 493 | DRM_DEBUG_DRIVER("opregion signature mismatch\n"); |
8ee1c3db MG |
494 | err = -EINVAL; |
495 | goto err_out; | |
496 | } | |
44834a67 CW |
497 | opregion->header = base; |
498 | opregion->vbt = base + OPREGION_VBT_OFFSET; | |
8ee1c3db | 499 | |
82d3c90c | 500 | opregion->lid_state = base + ACPI_CLID; |
01fe9dbd | 501 | |
8ee1c3db MG |
502 | mboxes = opregion->header->mboxes; |
503 | if (mboxes & MBOX_ACPI) { | |
44d98a61 | 504 | DRM_DEBUG_DRIVER("Public ACPI methods supported\n"); |
8ee1c3db | 505 | opregion->acpi = base + OPREGION_ACPI_OFFSET; |
8ee1c3db | 506 | } |
8ee1c3db MG |
507 | |
508 | if (mboxes & MBOX_SWSCI) { | |
44d98a61 | 509 | DRM_DEBUG_DRIVER("SWSCI supported\n"); |
8ee1c3db MG |
510 | opregion->swsci = base + OPREGION_SWSCI_OFFSET; |
511 | } | |
512 | if (mboxes & MBOX_ASLE) { | |
44d98a61 | 513 | DRM_DEBUG_DRIVER("ASLE supported\n"); |
8ee1c3db MG |
514 | opregion->asle = base + OPREGION_ASLE_OFFSET; |
515 | } | |
516 | ||
8ee1c3db MG |
517 | return 0; |
518 | ||
519 | err_out: | |
30c56660 | 520 | iounmap(base); |
8ee1c3db MG |
521 | return err; |
522 | } |