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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> | |
b30581a4 | 29 | #include <linux/dmi.h> |
74a365b3 | 30 | #include <acpi/video.h> |
8ee1c3db | 31 | |
760285e7 DH |
32 | #include <drm/drmP.h> |
33 | #include <drm/i915_drm.h> | |
8ee1c3db | 34 | #include "i915_drv.h" |
a9573556 | 35 | #include "intel_drv.h" |
8ee1c3db | 36 | |
ebde53c7 JN |
37 | #define PCI_ASLE 0xe4 |
38 | #define PCI_ASLS 0xfc | |
39 | #define PCI_SWSCI 0xe8 | |
40 | #define PCI_SWSCI_SCISEL (1 << 15) | |
41 | #define PCI_SWSCI_GSSCIE (1 << 0) | |
8ee1c3db | 42 | |
8ee1c3db MG |
43 | #define OPREGION_HEADER_OFFSET 0 |
44 | #define OPREGION_ACPI_OFFSET 0x100 | |
82d3c90c CW |
45 | #define ACPI_CLID 0x01ac /* current lid state indicator */ |
46 | #define ACPI_CDCK 0x01b0 /* current docking state indicator */ | |
8ee1c3db MG |
47 | #define OPREGION_SWSCI_OFFSET 0x200 |
48 | #define OPREGION_ASLE_OFFSET 0x300 | |
44834a67 | 49 | #define OPREGION_VBT_OFFSET 0x400 |
b3cbd98b | 50 | #define OPREGION_ASLE_EXT_OFFSET 0x1C00 |
8ee1c3db MG |
51 | |
52 | #define OPREGION_SIGNATURE "IntelGraphicsMem" | |
53 | #define MBOX_ACPI (1<<0) | |
54 | #define MBOX_SWSCI (1<<1) | |
55 | #define MBOX_ASLE (1<<2) | |
f6a430d8 | 56 | #define MBOX_ASLE_EXT (1<<4) |
8ee1c3db MG |
57 | |
58 | struct opregion_header { | |
0206e353 AJ |
59 | u8 signature[16]; |
60 | u32 size; | |
61 | u32 opregion_ver; | |
62 | u8 bios_ver[32]; | |
63 | u8 vbios_ver[16]; | |
64 | u8 driver_ver[16]; | |
65 | u32 mboxes; | |
f6a430d8 JN |
66 | u32 driver_model; |
67 | u32 pcon; | |
68 | u8 dver[32]; | |
69 | u8 rsvd[124]; | |
e4451239 | 70 | } __packed; |
8ee1c3db MG |
71 | |
72 | /* OpRegion mailbox #1: public ACPI methods */ | |
73 | struct opregion_acpi { | |
0206e353 AJ |
74 | u32 drdy; /* driver readiness */ |
75 | u32 csts; /* notification status */ | |
76 | u32 cevt; /* current event */ | |
77 | u8 rsvd1[20]; | |
78 | u32 didl[8]; /* supported display devices ID list */ | |
79 | u32 cpdl[8]; /* currently presented display list */ | |
80 | u32 cadl[8]; /* currently active display list */ | |
81 | u32 nadl[8]; /* next active devices list */ | |
82 | u32 aslp; /* ASL sleep time-out */ | |
83 | u32 tidx; /* toggle table index */ | |
84 | u32 chpd; /* current hotplug enable indicator */ | |
85 | u32 clid; /* current lid state*/ | |
86 | u32 cdck; /* current docking state */ | |
87 | u32 sxsw; /* Sx state resume */ | |
88 | u32 evts; /* ASL supported events */ | |
89 | u32 cnot; /* current OS notification */ | |
90 | u32 nrdy; /* driver status */ | |
f6a430d8 JN |
91 | u32 did2[7]; /* extended supported display devices ID list */ |
92 | u32 cpd2[7]; /* extended attached display devices list */ | |
93 | u8 rsvd2[4]; | |
e4451239 | 94 | } __packed; |
8ee1c3db MG |
95 | |
96 | /* OpRegion mailbox #2: SWSCI */ | |
97 | struct opregion_swsci { | |
0206e353 AJ |
98 | u32 scic; /* SWSCI command|status|data */ |
99 | u32 parm; /* command parameters */ | |
100 | u32 dslp; /* driver sleep time-out */ | |
101 | u8 rsvd[244]; | |
e4451239 | 102 | } __packed; |
8ee1c3db MG |
103 | |
104 | /* OpRegion mailbox #3: ASLE */ | |
105 | struct opregion_asle { | |
0206e353 AJ |
106 | u32 ardy; /* driver readiness */ |
107 | u32 aslc; /* ASLE interrupt command */ | |
108 | u32 tche; /* technology enabled indicator */ | |
109 | u32 alsi; /* current ALS illuminance reading */ | |
110 | u32 bclp; /* backlight brightness to set */ | |
111 | u32 pfit; /* panel fitting state */ | |
112 | u32 cblv; /* current brightness level */ | |
113 | u16 bclm[20]; /* backlight level duty cycle mapping table */ | |
114 | u32 cpfm; /* current panel fitting mode */ | |
115 | u32 epfm; /* enabled panel fitting modes */ | |
116 | u8 plut[74]; /* panel LUT and identifier */ | |
117 | u32 pfmb; /* PWM freq and min brightness */ | |
507c1a45 PZ |
118 | u32 cddv; /* color correction default values */ |
119 | u32 pcft; /* power conservation features */ | |
120 | u32 srot; /* supported rotation angles */ | |
121 | u32 iuer; /* IUER events */ | |
f6a430d8 JN |
122 | u64 fdss; |
123 | u32 fdsp; | |
124 | u32 stat; | |
c85f6c91 D |
125 | u64 rvda; /* Physical address of raw vbt data */ |
126 | u32 rvds; /* Size of raw vbt data */ | |
127 | u8 rsvd[58]; | |
e4451239 | 128 | } __packed; |
8ee1c3db | 129 | |
b3cbd98b D |
130 | /* OpRegion mailbox #5: ASLE ext */ |
131 | struct opregion_asle_ext { | |
132 | u32 phed; /* Panel Header */ | |
133 | u8 bddc[256]; /* Panel EDID */ | |
134 | u8 rsvd[764]; | |
135 | } __packed; | |
136 | ||
68bca4b0 JN |
137 | /* Driver readiness indicator */ |
138 | #define ASLE_ARDY_READY (1 << 0) | |
139 | #define ASLE_ARDY_NOT_READY (0 << 0) | |
140 | ||
507c1a45 PZ |
141 | /* ASLE Interrupt Command (ASLC) bits */ |
142 | #define ASLC_SET_ALS_ILLUM (1 << 0) | |
143 | #define ASLC_SET_BACKLIGHT (1 << 1) | |
144 | #define ASLC_SET_PFIT (1 << 2) | |
145 | #define ASLC_SET_PWM_FREQ (1 << 3) | |
146 | #define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4) | |
147 | #define ASLC_BUTTON_ARRAY (1 << 5) | |
148 | #define ASLC_CONVERTIBLE_INDICATOR (1 << 6) | |
149 | #define ASLC_DOCKING_INDICATOR (1 << 7) | |
150 | #define ASLC_ISCT_STATE_CHANGE (1 << 8) | |
151 | #define ASLC_REQ_MSK 0x1ff | |
152 | /* response bits */ | |
153 | #define ASLC_ALS_ILLUM_FAILED (1 << 10) | |
154 | #define ASLC_BACKLIGHT_FAILED (1 << 12) | |
155 | #define ASLC_PFIT_FAILED (1 << 14) | |
156 | #define ASLC_PWM_FREQ_FAILED (1 << 16) | |
157 | #define ASLC_ROTATION_ANGLES_FAILED (1 << 18) | |
158 | #define ASLC_BUTTON_ARRAY_FAILED (1 << 20) | |
159 | #define ASLC_CONVERTIBLE_FAILED (1 << 22) | |
160 | #define ASLC_DOCKING_FAILED (1 << 24) | |
161 | #define ASLC_ISCT_STATE_FAILED (1 << 26) | |
8ee1c3db | 162 | |
f599cc29 JN |
163 | /* Technology enabled indicator */ |
164 | #define ASLE_TCHE_ALS_EN (1 << 0) | |
165 | #define ASLE_TCHE_BLC_EN (1 << 1) | |
166 | #define ASLE_TCHE_PFIT_EN (1 << 2) | |
167 | #define ASLE_TCHE_PFMB_EN (1 << 3) | |
168 | ||
8ee1c3db MG |
169 | /* ASLE backlight brightness to set */ |
170 | #define ASLE_BCLP_VALID (1<<31) | |
171 | #define ASLE_BCLP_MSK (~(1<<31)) | |
172 | ||
173 | /* ASLE panel fitting request */ | |
174 | #define ASLE_PFIT_VALID (1<<31) | |
175 | #define ASLE_PFIT_CENTER (1<<0) | |
176 | #define ASLE_PFIT_STRETCH_TEXT (1<<1) | |
177 | #define ASLE_PFIT_STRETCH_GFX (1<<2) | |
178 | ||
179 | /* PWM frequency and minimum brightness */ | |
180 | #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) | |
181 | #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) | |
182 | #define ASLE_PFMB_PWM_MASK (0x7ffffe00) | |
183 | #define ASLE_PFMB_PWM_VALID (1<<31) | |
184 | ||
185 | #define ASLE_CBLV_VALID (1<<31) | |
186 | ||
507c1a45 PZ |
187 | /* IUER */ |
188 | #define ASLE_IUER_DOCKING (1 << 7) | |
189 | #define ASLE_IUER_CONVERTIBLE (1 << 6) | |
190 | #define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4) | |
191 | #define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3) | |
192 | #define ASLE_IUER_VOLUME_UP_BTN (1 << 2) | |
193 | #define ASLE_IUER_WINDOWS_BTN (1 << 1) | |
194 | #define ASLE_IUER_POWER_BTN (1 << 0) | |
195 | ||
ebde53c7 JN |
196 | /* Software System Control Interrupt (SWSCI) */ |
197 | #define SWSCI_SCIC_INDICATOR (1 << 0) | |
198 | #define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1 | |
199 | #define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1) | |
200 | #define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8 | |
201 | #define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8) | |
202 | #define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8 | |
203 | #define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8) | |
204 | #define SWSCI_SCIC_EXIT_STATUS_SHIFT 5 | |
205 | #define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5) | |
206 | #define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1 | |
207 | ||
208 | #define SWSCI_FUNCTION_CODE(main, sub) \ | |
209 | ((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \ | |
210 | (sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT) | |
211 | ||
212 | /* SWSCI: Get BIOS Data (GBDA) */ | |
213 | #define SWSCI_GBDA 4 | |
214 | #define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0) | |
215 | #define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1) | |
216 | #define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4) | |
217 | #define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5) | |
218 | #define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6) | |
219 | #define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7) | |
220 | #define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10) | |
221 | ||
222 | /* SWSCI: System BIOS Callbacks (SBCB) */ | |
223 | #define SWSCI_SBCB 6 | |
224 | #define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0) | |
225 | #define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1) | |
226 | #define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3) | |
227 | #define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4) | |
228 | #define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5) | |
229 | #define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6) | |
230 | #define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7) | |
231 | #define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8) | |
232 | #define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9) | |
233 | #define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10) | |
234 | #define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11) | |
235 | #define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16) | |
236 | #define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17) | |
237 | #define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18) | |
238 | #define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19) | |
239 | #define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21) | |
240 | ||
74a365b3 MG |
241 | #define ACPI_OTHER_OUTPUT (0<<8) |
242 | #define ACPI_VGA_OUTPUT (1<<8) | |
243 | #define ACPI_TV_OUTPUT (2<<8) | |
244 | #define ACPI_DIGITAL_OUTPUT (3<<8) | |
245 | #define ACPI_LVDS_OUTPUT (4<<8) | |
246 | ||
bdde5c6a JN |
247 | #define MAX_DSLP 1500 |
248 | ||
44834a67 | 249 | #ifdef CONFIG_ACPI |
ebde53c7 JN |
250 | static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out) |
251 | { | |
252 | struct drm_i915_private *dev_priv = dev->dev_private; | |
115719fc | 253 | struct opregion_swsci *swsci = dev_priv->opregion.swsci; |
ebde53c7 JN |
254 | u32 main_function, sub_function, scic; |
255 | u16 pci_swsci; | |
256 | u32 dslp; | |
257 | ||
258 | if (!swsci) | |
259 | return -ENODEV; | |
260 | ||
261 | main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >> | |
262 | SWSCI_SCIC_MAIN_FUNCTION_SHIFT; | |
263 | sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >> | |
264 | SWSCI_SCIC_SUB_FUNCTION_SHIFT; | |
265 | ||
266 | /* Check if we can call the function. See swsci_setup for details. */ | |
267 | if (main_function == SWSCI_SBCB) { | |
268 | if ((dev_priv->opregion.swsci_sbcb_sub_functions & | |
269 | (1 << sub_function)) == 0) | |
270 | return -EINVAL; | |
271 | } else if (main_function == SWSCI_GBDA) { | |
272 | if ((dev_priv->opregion.swsci_gbda_sub_functions & | |
273 | (1 << sub_function)) == 0) | |
274 | return -EINVAL; | |
275 | } | |
276 | ||
277 | /* Driver sleep timeout in ms. */ | |
115719fc | 278 | dslp = swsci->dslp; |
ebde53c7 | 279 | if (!dslp) { |
4994aa8c PZ |
280 | /* The spec says 2ms should be the default, but it's too small |
281 | * for some machines. */ | |
282 | dslp = 50; | |
bdde5c6a | 283 | } else if (dslp > MAX_DSLP) { |
ebde53c7 | 284 | /* Hey bios, trust must be earned. */ |
bdde5c6a JN |
285 | DRM_INFO_ONCE("ACPI BIOS requests an excessive sleep of %u ms, " |
286 | "using %u ms instead\n", dslp, MAX_DSLP); | |
287 | dslp = MAX_DSLP; | |
ebde53c7 JN |
288 | } |
289 | ||
290 | /* The spec tells us to do this, but we are the only user... */ | |
115719fc | 291 | scic = swsci->scic; |
ebde53c7 JN |
292 | if (scic & SWSCI_SCIC_INDICATOR) { |
293 | DRM_DEBUG_DRIVER("SWSCI request already in progress\n"); | |
294 | return -EBUSY; | |
295 | } | |
296 | ||
297 | scic = function | SWSCI_SCIC_INDICATOR; | |
298 | ||
115719fc WD |
299 | swsci->parm = parm; |
300 | swsci->scic = scic; | |
ebde53c7 JN |
301 | |
302 | /* Ensure SCI event is selected and event trigger is cleared. */ | |
303 | pci_read_config_word(dev->pdev, PCI_SWSCI, &pci_swsci); | |
304 | if (!(pci_swsci & PCI_SWSCI_SCISEL) || (pci_swsci & PCI_SWSCI_GSSCIE)) { | |
305 | pci_swsci |= PCI_SWSCI_SCISEL; | |
306 | pci_swsci &= ~PCI_SWSCI_GSSCIE; | |
307 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); | |
308 | } | |
309 | ||
310 | /* Use event trigger to tell bios to check the mail. */ | |
311 | pci_swsci |= PCI_SWSCI_GSSCIE; | |
312 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); | |
313 | ||
314 | /* Poll for the result. */ | |
115719fc | 315 | #define C (((scic = swsci->scic) & SWSCI_SCIC_INDICATOR) == 0) |
ebde53c7 JN |
316 | if (wait_for(C, dslp)) { |
317 | DRM_DEBUG_DRIVER("SWSCI request timed out\n"); | |
318 | return -ETIMEDOUT; | |
319 | } | |
320 | ||
321 | scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >> | |
322 | SWSCI_SCIC_EXIT_STATUS_SHIFT; | |
323 | ||
324 | /* Note: scic == 0 is an error! */ | |
325 | if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) { | |
326 | DRM_DEBUG_DRIVER("SWSCI request error %u\n", scic); | |
327 | return -EIO; | |
328 | } | |
329 | ||
330 | if (parm_out) | |
115719fc | 331 | *parm_out = swsci->parm; |
ebde53c7 JN |
332 | |
333 | return 0; | |
334 | ||
335 | #undef C | |
336 | } | |
337 | ||
9c4b0a68 JN |
338 | #define DISPLAY_TYPE_CRT 0 |
339 | #define DISPLAY_TYPE_TV 1 | |
340 | #define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2 | |
341 | #define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3 | |
342 | ||
343 | int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, | |
344 | bool enable) | |
345 | { | |
346 | struct drm_device *dev = intel_encoder->base.dev; | |
347 | u32 parm = 0; | |
348 | u32 type = 0; | |
349 | u32 port; | |
350 | ||
351 | /* don't care about old stuff for now */ | |
352 | if (!HAS_DDI(dev)) | |
353 | return 0; | |
354 | ||
7d4aefd0 SS |
355 | if (intel_encoder->type == INTEL_OUTPUT_DSI) |
356 | port = 0; | |
357 | else | |
358 | port = intel_ddi_get_encoder_port(intel_encoder); | |
359 | ||
360 | if (port == PORT_E) { | |
9c4b0a68 JN |
361 | port = 0; |
362 | } else { | |
363 | parm |= 1 << port; | |
364 | port++; | |
365 | } | |
366 | ||
367 | if (!enable) | |
368 | parm |= 4 << 8; | |
369 | ||
370 | switch (intel_encoder->type) { | |
371 | case INTEL_OUTPUT_ANALOG: | |
372 | type = DISPLAY_TYPE_CRT; | |
373 | break; | |
374 | case INTEL_OUTPUT_UNKNOWN: | |
375 | case INTEL_OUTPUT_DISPLAYPORT: | |
376 | case INTEL_OUTPUT_HDMI: | |
0e32b39c | 377 | case INTEL_OUTPUT_DP_MST: |
9c4b0a68 JN |
378 | type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL; |
379 | break; | |
380 | case INTEL_OUTPUT_EDP: | |
7d4aefd0 | 381 | case INTEL_OUTPUT_DSI: |
9c4b0a68 JN |
382 | type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL; |
383 | break; | |
384 | default: | |
385 | WARN_ONCE(1, "unsupported intel_encoder type %d\n", | |
386 | intel_encoder->type); | |
387 | return -EINVAL; | |
388 | } | |
389 | ||
390 | parm |= type << (16 + port * 3); | |
391 | ||
392 | return swsci(dev, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL); | |
393 | } | |
394 | ||
ecbc5cf3 JN |
395 | static const struct { |
396 | pci_power_t pci_power_state; | |
397 | u32 parm; | |
398 | } power_state_map[] = { | |
399 | { PCI_D0, 0x00 }, | |
400 | { PCI_D1, 0x01 }, | |
401 | { PCI_D2, 0x02 }, | |
402 | { PCI_D3hot, 0x04 }, | |
403 | { PCI_D3cold, 0x04 }, | |
404 | }; | |
405 | ||
406 | int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state) | |
407 | { | |
408 | int i; | |
409 | ||
410 | if (!HAS_DDI(dev)) | |
411 | return 0; | |
412 | ||
413 | for (i = 0; i < ARRAY_SIZE(power_state_map); i++) { | |
414 | if (state == power_state_map[i].pci_power_state) | |
415 | return swsci(dev, SWSCI_SBCB_ADAPTER_POWER_STATE, | |
416 | power_state_map[i].parm, NULL); | |
417 | } | |
418 | ||
419 | return -EINVAL; | |
420 | } | |
421 | ||
8ee1c3db MG |
422 | static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) |
423 | { | |
424 | struct drm_i915_private *dev_priv = dev->dev_private; | |
19c8054c | 425 | struct intel_connector *connector; |
115719fc | 426 | struct opregion_asle *asle = dev_priv->opregion.asle; |
8ee1c3db | 427 | |
749052fb JN |
428 | DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); |
429 | ||
da882e5a | 430 | if (acpi_video_get_backlight_type() == acpi_backlight_native) { |
0b9f7d93 AL |
431 | DRM_DEBUG_KMS("opregion backlight request ignored\n"); |
432 | return 0; | |
433 | } | |
434 | ||
8ee1c3db | 435 | if (!(bclp & ASLE_BCLP_VALID)) |
507c1a45 | 436 | return ASLC_BACKLIGHT_FAILED; |
8ee1c3db MG |
437 | |
438 | bclp &= ASLE_BCLP_MSK; | |
a9573556 | 439 | if (bclp > 255) |
507c1a45 | 440 | return ASLC_BACKLIGHT_FAILED; |
8ee1c3db | 441 | |
51fd371b | 442 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
c91c9f32 | 443 | |
752aa88a | 444 | /* |
c91c9f32 JN |
445 | * Update backlight on all connectors that support backlight (usually |
446 | * only one). | |
752aa88a | 447 | */ |
540b5d02 | 448 | DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp); |
19c8054c JN |
449 | for_each_intel_connector(dev, connector) |
450 | intel_panel_set_backlight_acpi(connector, bclp, 255); | |
115719fc | 451 | asle->cblv = DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID; |
8ee1c3db | 452 | |
51fd371b | 453 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
752aa88a | 454 | |
c91c9f32 JN |
455 | |
456 | return 0; | |
8ee1c3db MG |
457 | } |
458 | ||
459 | static u32 asle_set_als_illum(struct drm_device *dev, u32 alsi) | |
460 | { | |
461 | /* alsi is the current ALS reading in lux. 0 indicates below sensor | |
462 | range, 0xffff indicates above sensor range. 1-0xfffe are valid */ | |
e93d440b | 463 | DRM_DEBUG_DRIVER("Illum is not supported\n"); |
507c1a45 | 464 | return ASLC_ALS_ILLUM_FAILED; |
8ee1c3db MG |
465 | } |
466 | ||
467 | static u32 asle_set_pwm_freq(struct drm_device *dev, u32 pfmb) | |
468 | { | |
e93d440b | 469 | DRM_DEBUG_DRIVER("PWM freq is not supported\n"); |
507c1a45 | 470 | return ASLC_PWM_FREQ_FAILED; |
8ee1c3db MG |
471 | } |
472 | ||
473 | static u32 asle_set_pfit(struct drm_device *dev, u32 pfit) | |
474 | { | |
475 | /* Panel fitting is currently controlled by the X code, so this is a | |
476 | noop until modesetting support works fully */ | |
e93d440b | 477 | DRM_DEBUG_DRIVER("Pfit is not supported\n"); |
507c1a45 PZ |
478 | return ASLC_PFIT_FAILED; |
479 | } | |
480 | ||
481 | static u32 asle_set_supported_rotation_angles(struct drm_device *dev, u32 srot) | |
482 | { | |
483 | DRM_DEBUG_DRIVER("SROT is not supported\n"); | |
484 | return ASLC_ROTATION_ANGLES_FAILED; | |
485 | } | |
486 | ||
487 | static u32 asle_set_button_array(struct drm_device *dev, u32 iuer) | |
488 | { | |
489 | if (!iuer) | |
490 | DRM_DEBUG_DRIVER("Button array event is not supported (nothing)\n"); | |
491 | if (iuer & ASLE_IUER_ROTATION_LOCK_BTN) | |
492 | DRM_DEBUG_DRIVER("Button array event is not supported (rotation lock)\n"); | |
493 | if (iuer & ASLE_IUER_VOLUME_DOWN_BTN) | |
494 | DRM_DEBUG_DRIVER("Button array event is not supported (volume down)\n"); | |
495 | if (iuer & ASLE_IUER_VOLUME_UP_BTN) | |
496 | DRM_DEBUG_DRIVER("Button array event is not supported (volume up)\n"); | |
497 | if (iuer & ASLE_IUER_WINDOWS_BTN) | |
498 | DRM_DEBUG_DRIVER("Button array event is not supported (windows)\n"); | |
499 | if (iuer & ASLE_IUER_POWER_BTN) | |
500 | DRM_DEBUG_DRIVER("Button array event is not supported (power)\n"); | |
501 | ||
502 | return ASLC_BUTTON_ARRAY_FAILED; | |
503 | } | |
504 | ||
505 | static u32 asle_set_convertible(struct drm_device *dev, u32 iuer) | |
506 | { | |
507 | if (iuer & ASLE_IUER_CONVERTIBLE) | |
508 | DRM_DEBUG_DRIVER("Convertible is not supported (clamshell)\n"); | |
509 | else | |
510 | DRM_DEBUG_DRIVER("Convertible is not supported (slate)\n"); | |
511 | ||
512 | return ASLC_CONVERTIBLE_FAILED; | |
513 | } | |
514 | ||
515 | static u32 asle_set_docking(struct drm_device *dev, u32 iuer) | |
516 | { | |
517 | if (iuer & ASLE_IUER_DOCKING) | |
518 | DRM_DEBUG_DRIVER("Docking is not supported (docked)\n"); | |
519 | else | |
520 | DRM_DEBUG_DRIVER("Docking is not supported (undocked)\n"); | |
521 | ||
522 | return ASLC_DOCKING_FAILED; | |
523 | } | |
524 | ||
525 | static u32 asle_isct_state(struct drm_device *dev) | |
526 | { | |
527 | DRM_DEBUG_DRIVER("ISCT is not supported\n"); | |
528 | return ASLC_ISCT_STATE_FAILED; | |
8ee1c3db MG |
529 | } |
530 | ||
91a60f20 | 531 | static void asle_work(struct work_struct *work) |
8ee1c3db | 532 | { |
91a60f20 JN |
533 | struct intel_opregion *opregion = |
534 | container_of(work, struct intel_opregion, asle_work); | |
535 | struct drm_i915_private *dev_priv = | |
536 | container_of(opregion, struct drm_i915_private, opregion); | |
537 | struct drm_device *dev = dev_priv->dev; | |
115719fc | 538 | struct opregion_asle *asle = dev_priv->opregion.asle; |
507c1a45 PZ |
539 | u32 aslc_stat = 0; |
540 | u32 aslc_req; | |
8ee1c3db MG |
541 | |
542 | if (!asle) | |
543 | return; | |
544 | ||
115719fc | 545 | aslc_req = asle->aslc; |
8ee1c3db | 546 | |
507c1a45 PZ |
547 | if (!(aslc_req & ASLC_REQ_MSK)) { |
548 | DRM_DEBUG_DRIVER("No request on ASLC interrupt 0x%08x\n", | |
549 | aslc_req); | |
8ee1c3db MG |
550 | return; |
551 | } | |
552 | ||
507c1a45 | 553 | if (aslc_req & ASLC_SET_ALS_ILLUM) |
115719fc | 554 | aslc_stat |= asle_set_als_illum(dev, asle->alsi); |
507c1a45 PZ |
555 | |
556 | if (aslc_req & ASLC_SET_BACKLIGHT) | |
115719fc | 557 | aslc_stat |= asle_set_backlight(dev, asle->bclp); |
507c1a45 PZ |
558 | |
559 | if (aslc_req & ASLC_SET_PFIT) | |
115719fc | 560 | aslc_stat |= asle_set_pfit(dev, asle->pfit); |
507c1a45 PZ |
561 | |
562 | if (aslc_req & ASLC_SET_PWM_FREQ) | |
115719fc | 563 | aslc_stat |= asle_set_pwm_freq(dev, asle->pfmb); |
507c1a45 PZ |
564 | |
565 | if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES) | |
566 | aslc_stat |= asle_set_supported_rotation_angles(dev, | |
115719fc | 567 | asle->srot); |
507c1a45 PZ |
568 | |
569 | if (aslc_req & ASLC_BUTTON_ARRAY) | |
115719fc | 570 | aslc_stat |= asle_set_button_array(dev, asle->iuer); |
8ee1c3db | 571 | |
507c1a45 | 572 | if (aslc_req & ASLC_CONVERTIBLE_INDICATOR) |
115719fc | 573 | aslc_stat |= asle_set_convertible(dev, asle->iuer); |
8ee1c3db | 574 | |
507c1a45 | 575 | if (aslc_req & ASLC_DOCKING_INDICATOR) |
115719fc | 576 | aslc_stat |= asle_set_docking(dev, asle->iuer); |
8ee1c3db | 577 | |
507c1a45 PZ |
578 | if (aslc_req & ASLC_ISCT_STATE_CHANGE) |
579 | aslc_stat |= asle_isct_state(dev); | |
8ee1c3db | 580 | |
115719fc | 581 | asle->aslc = aslc_stat; |
8ee1c3db MG |
582 | } |
583 | ||
91a60f20 JN |
584 | void intel_opregion_asle_intr(struct drm_device *dev) |
585 | { | |
586 | struct drm_i915_private *dev_priv = dev->dev_private; | |
587 | ||
588 | if (dev_priv->opregion.asle) | |
589 | schedule_work(&dev_priv->opregion.asle_work); | |
590 | } | |
591 | ||
8ee1c3db MG |
592 | #define ACPI_EV_DISPLAY_SWITCH (1<<0) |
593 | #define ACPI_EV_LID (1<<1) | |
594 | #define ACPI_EV_DOCK (1<<2) | |
595 | ||
596 | static struct intel_opregion *system_opregion; | |
597 | ||
b358d0a6 HE |
598 | static int intel_opregion_video_event(struct notifier_block *nb, |
599 | unsigned long val, void *data) | |
8ee1c3db MG |
600 | { |
601 | /* The only video events relevant to opregion are 0x80. These indicate | |
602 | either a docking event, lid switch or display switch request. In | |
603 | Linux, these are handled by the dock, button and video drivers. | |
f5a3d0c4 | 604 | */ |
8ee1c3db | 605 | |
f5a3d0c4 | 606 | struct acpi_bus_event *event = data; |
115719fc | 607 | struct opregion_acpi *acpi; |
f5a3d0c4 MG |
608 | int ret = NOTIFY_OK; |
609 | ||
610 | if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) | |
611 | return NOTIFY_DONE; | |
8ee1c3db MG |
612 | |
613 | if (!system_opregion) | |
614 | return NOTIFY_DONE; | |
615 | ||
616 | acpi = system_opregion->acpi; | |
f5a3d0c4 | 617 | |
115719fc | 618 | if (event->type == 0x80 && ((acpi->cevt & 1) == 0)) |
f5a3d0c4 MG |
619 | ret = NOTIFY_BAD; |
620 | ||
115719fc | 621 | acpi->csts = 0; |
8ee1c3db | 622 | |
f5a3d0c4 | 623 | return ret; |
8ee1c3db MG |
624 | } |
625 | ||
626 | static struct notifier_block intel_opregion_notifier = { | |
627 | .notifier_call = intel_opregion_video_event, | |
628 | }; | |
629 | ||
74a365b3 MG |
630 | /* |
631 | * Initialise the DIDL field in opregion. This passes a list of devices to | |
632 | * the firmware. Values are defined by section B.4.2 of the ACPI specification | |
633 | * (version 3) | |
634 | */ | |
635 | ||
d5cbb22f JN |
636 | static u32 get_did(struct intel_opregion *opregion, int i) |
637 | { | |
638 | u32 did; | |
639 | ||
640 | if (i < ARRAY_SIZE(opregion->acpi->didl)) { | |
115719fc | 641 | did = opregion->acpi->didl[i]; |
d5cbb22f JN |
642 | } else { |
643 | i -= ARRAY_SIZE(opregion->acpi->didl); | |
644 | ||
645 | if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) | |
646 | return 0; | |
647 | ||
115719fc | 648 | did = opregion->acpi->did2[i]; |
d5cbb22f JN |
649 | } |
650 | ||
651 | return did; | |
652 | } | |
653 | ||
654 | static void set_did(struct intel_opregion *opregion, int i, u32 val) | |
655 | { | |
656 | if (i < ARRAY_SIZE(opregion->acpi->didl)) { | |
115719fc | 657 | opregion->acpi->didl[i] = val; |
d5cbb22f JN |
658 | } else { |
659 | i -= ARRAY_SIZE(opregion->acpi->didl); | |
660 | ||
661 | if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) | |
662 | return; | |
663 | ||
115719fc | 664 | opregion->acpi->did2[i] = val; |
d5cbb22f JN |
665 | } |
666 | } | |
667 | ||
74a365b3 MG |
668 | static void intel_didl_outputs(struct drm_device *dev) |
669 | { | |
670 | struct drm_i915_private *dev_priv = dev->dev_private; | |
671 | struct intel_opregion *opregion = &dev_priv->opregion; | |
672 | struct drm_connector *connector; | |
3143751f ZR |
673 | acpi_handle handle; |
674 | struct acpi_device *acpi_dev, *acpi_cdev, *acpi_video_bus = NULL; | |
675 | unsigned long long device_id; | |
676 | acpi_status status; | |
dfc2066d | 677 | u32 temp, max_outputs; |
74a365b3 MG |
678 | int i = 0; |
679 | ||
3a83f992 | 680 | handle = ACPI_HANDLE(&dev->pdev->dev); |
7d37beaa | 681 | if (!handle || acpi_bus_get_device(handle, &acpi_dev)) |
3143751f ZR |
682 | return; |
683 | ||
d4e1a692 | 684 | if (acpi_is_video_device(handle)) |
3143751f ZR |
685 | acpi_video_bus = acpi_dev; |
686 | else { | |
687 | list_for_each_entry(acpi_cdev, &acpi_dev->children, node) { | |
d4e1a692 | 688 | if (acpi_is_video_device(acpi_cdev->handle)) { |
3143751f ZR |
689 | acpi_video_bus = acpi_cdev; |
690 | break; | |
691 | } | |
692 | } | |
693 | } | |
694 | ||
695 | if (!acpi_video_bus) { | |
78c3d5fa | 696 | DRM_DEBUG_KMS("No ACPI video bus found\n"); |
3143751f ZR |
697 | return; |
698 | } | |
699 | ||
dfc2066d JN |
700 | /* |
701 | * In theory, did2, the extended didl, gets added at opregion version | |
702 | * 3.0. In practice, however, we're supposed to set it for earlier | |
703 | * versions as well, since a BIOS that doesn't understand did2 should | |
704 | * not look at it anyway. Use a variable so we can tweak this if a need | |
705 | * arises later. | |
706 | */ | |
707 | max_outputs = ARRAY_SIZE(opregion->acpi->didl) + | |
708 | ARRAY_SIZE(opregion->acpi->did2); | |
709 | ||
3143751f | 710 | list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) { |
dfc2066d JN |
711 | if (i >= max_outputs) { |
712 | DRM_DEBUG_KMS("More than %u outputs detected via ACPI\n", | |
713 | max_outputs); | |
3143751f ZR |
714 | return; |
715 | } | |
d5cbb22f JN |
716 | status = acpi_evaluate_integer(acpi_cdev->handle, "_ADR", |
717 | NULL, &device_id); | |
3143751f ZR |
718 | if (ACPI_SUCCESS(status)) { |
719 | if (!device_id) | |
720 | goto blind_set; | |
d5cbb22f | 721 | set_did(opregion, i++, (u32)(device_id & 0x0f0f)); |
3143751f ZR |
722 | } |
723 | } | |
724 | ||
725 | end: | |
dfc2066d JN |
726 | DRM_DEBUG_KMS("%d outputs detected\n", i); |
727 | ||
728 | /* If fewer than max outputs, the list must be null terminated */ | |
729 | if (i < max_outputs) | |
d5cbb22f | 730 | set_did(opregion, i, 0); |
3143751f ZR |
731 | return; |
732 | ||
733 | blind_set: | |
734 | i = 0; | |
74a365b3 MG |
735 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
736 | int output_type = ACPI_OTHER_OUTPUT; | |
dfc2066d JN |
737 | if (i >= max_outputs) { |
738 | DRM_DEBUG_KMS("More than %u outputs in connector list\n", | |
739 | max_outputs); | |
74a365b3 MG |
740 | return; |
741 | } | |
742 | switch (connector->connector_type) { | |
743 | case DRM_MODE_CONNECTOR_VGA: | |
744 | case DRM_MODE_CONNECTOR_DVIA: | |
745 | output_type = ACPI_VGA_OUTPUT; | |
746 | break; | |
747 | case DRM_MODE_CONNECTOR_Composite: | |
748 | case DRM_MODE_CONNECTOR_SVIDEO: | |
749 | case DRM_MODE_CONNECTOR_Component: | |
750 | case DRM_MODE_CONNECTOR_9PinDIN: | |
751 | output_type = ACPI_TV_OUTPUT; | |
752 | break; | |
753 | case DRM_MODE_CONNECTOR_DVII: | |
754 | case DRM_MODE_CONNECTOR_DVID: | |
755 | case DRM_MODE_CONNECTOR_DisplayPort: | |
756 | case DRM_MODE_CONNECTOR_HDMIA: | |
757 | case DRM_MODE_CONNECTOR_HDMIB: | |
758 | output_type = ACPI_DIGITAL_OUTPUT; | |
759 | break; | |
760 | case DRM_MODE_CONNECTOR_LVDS: | |
761 | output_type = ACPI_LVDS_OUTPUT; | |
762 | break; | |
763 | } | |
d5cbb22f JN |
764 | temp = get_did(opregion, i); |
765 | set_did(opregion, i, temp | (1 << 31) | output_type | i); | |
74a365b3 MG |
766 | i++; |
767 | } | |
3143751f | 768 | goto end; |
74a365b3 MG |
769 | } |
770 | ||
d627b62f L |
771 | static void intel_setup_cadls(struct drm_device *dev) |
772 | { | |
773 | struct drm_i915_private *dev_priv = dev->dev_private; | |
774 | struct intel_opregion *opregion = &dev_priv->opregion; | |
775 | int i = 0; | |
776 | u32 disp_id; | |
777 | ||
778 | /* Initialize the CADL field by duplicating the DIDL values. | |
779 | * Technically, this is not always correct as display outputs may exist, | |
780 | * but not active. This initialization is necessary for some Clevo | |
781 | * laptops that check this field before processing the brightness and | |
782 | * display switching hotkeys. Just like DIDL, CADL is NULL-terminated if | |
783 | * there are less than eight devices. */ | |
784 | do { | |
d5cbb22f | 785 | disp_id = get_did(opregion, i); |
115719fc | 786 | opregion->acpi->cadl[i] = disp_id; |
d627b62f L |
787 | } while (++i < 8 && disp_id != 0); |
788 | } | |
789 | ||
44834a67 CW |
790 | void intel_opregion_init(struct drm_device *dev) |
791 | { | |
792 | struct drm_i915_private *dev_priv = dev->dev_private; | |
793 | struct intel_opregion *opregion = &dev_priv->opregion; | |
794 | ||
795 | if (!opregion->header) | |
796 | return; | |
797 | ||
798 | if (opregion->acpi) { | |
3f52c6ed DV |
799 | intel_didl_outputs(dev); |
800 | intel_setup_cadls(dev); | |
44834a67 CW |
801 | |
802 | /* Notify BIOS we are ready to handle ACPI video ext notifs. | |
803 | * Right now, all the events are handled by the ACPI video module. | |
804 | * We don't actually need to do anything with them. */ | |
115719fc WD |
805 | opregion->acpi->csts = 0; |
806 | opregion->acpi->drdy = 1; | |
44834a67 CW |
807 | |
808 | system_opregion = opregion; | |
809 | register_acpi_notifier(&intel_opregion_notifier); | |
810 | } | |
811 | ||
68bca4b0 | 812 | if (opregion->asle) { |
115719fc WD |
813 | opregion->asle->tche = ASLE_TCHE_BLC_EN; |
814 | opregion->asle->ardy = ASLE_ARDY_READY; | |
68bca4b0 | 815 | } |
44834a67 CW |
816 | } |
817 | ||
818 | void intel_opregion_fini(struct drm_device *dev) | |
819 | { | |
820 | struct drm_i915_private *dev_priv = dev->dev_private; | |
821 | struct intel_opregion *opregion = &dev_priv->opregion; | |
822 | ||
823 | if (!opregion->header) | |
824 | return; | |
825 | ||
68bca4b0 | 826 | if (opregion->asle) |
115719fc | 827 | opregion->asle->ardy = ASLE_ARDY_NOT_READY; |
68bca4b0 | 828 | |
91a60f20 JN |
829 | cancel_work_sync(&dev_priv->opregion.asle_work); |
830 | ||
44834a67 | 831 | if (opregion->acpi) { |
115719fc | 832 | opregion->acpi->drdy = 0; |
44834a67 CW |
833 | |
834 | system_opregion = NULL; | |
835 | unregister_acpi_notifier(&intel_opregion_notifier); | |
836 | } | |
837 | ||
838 | /* just clear all opregion memory pointers now */ | |
115719fc | 839 | memunmap(opregion->header); |
04ebaadb JN |
840 | if (opregion->rvda) { |
841 | memunmap(opregion->rvda); | |
842 | opregion->rvda = NULL; | |
843 | } | |
44834a67 CW |
844 | opregion->header = NULL; |
845 | opregion->acpi = NULL; | |
846 | opregion->swsci = NULL; | |
847 | opregion->asle = NULL; | |
848 | opregion->vbt = NULL; | |
794a79a6 | 849 | opregion->lid_state = NULL; |
44834a67 | 850 | } |
ebde53c7 JN |
851 | |
852 | static void swsci_setup(struct drm_device *dev) | |
853 | { | |
854 | struct drm_i915_private *dev_priv = dev->dev_private; | |
855 | struct intel_opregion *opregion = &dev_priv->opregion; | |
856 | bool requested_callbacks = false; | |
857 | u32 tmp; | |
858 | ||
859 | /* Sub-function code 0 is okay, let's allow them. */ | |
860 | opregion->swsci_gbda_sub_functions = 1; | |
861 | opregion->swsci_sbcb_sub_functions = 1; | |
862 | ||
863 | /* We use GBDA to ask for supported GBDA calls. */ | |
864 | if (swsci(dev, SWSCI_GBDA_SUPPORTED_CALLS, 0, &tmp) == 0) { | |
865 | /* make the bits match the sub-function codes */ | |
866 | tmp <<= 1; | |
867 | opregion->swsci_gbda_sub_functions |= tmp; | |
868 | } | |
869 | ||
870 | /* | |
871 | * We also use GBDA to ask for _requested_ SBCB callbacks. The driver | |
872 | * must not call interfaces that are not specifically requested by the | |
873 | * bios. | |
874 | */ | |
875 | if (swsci(dev, SWSCI_GBDA_REQUESTED_CALLBACKS, 0, &tmp) == 0) { | |
876 | /* here, the bits already match sub-function codes */ | |
877 | opregion->swsci_sbcb_sub_functions |= tmp; | |
878 | requested_callbacks = true; | |
879 | } | |
880 | ||
881 | /* | |
882 | * But we use SBCB to ask for _supported_ SBCB calls. This does not mean | |
883 | * the callback is _requested_. But we still can't call interfaces that | |
884 | * are not requested. | |
885 | */ | |
886 | if (swsci(dev, SWSCI_SBCB_SUPPORTED_CALLBACKS, 0, &tmp) == 0) { | |
887 | /* make the bits match the sub-function codes */ | |
888 | u32 low = tmp & 0x7ff; | |
889 | u32 high = tmp & ~0xfff; /* bit 11 is reserved */ | |
890 | tmp = (high << 4) | (low << 1) | 1; | |
891 | ||
892 | /* best guess what to do with supported wrt requested */ | |
893 | if (requested_callbacks) { | |
894 | u32 req = opregion->swsci_sbcb_sub_functions; | |
895 | if ((req & tmp) != req) | |
896 | DRM_DEBUG_DRIVER("SWSCI BIOS requested (%08x) SBCB callbacks that are not supported (%08x)\n", req, tmp); | |
897 | /* XXX: for now, trust the requested callbacks */ | |
898 | /* opregion->swsci_sbcb_sub_functions &= tmp; */ | |
899 | } else { | |
900 | opregion->swsci_sbcb_sub_functions |= tmp; | |
901 | } | |
902 | } | |
903 | ||
904 | DRM_DEBUG_DRIVER("SWSCI GBDA callbacks %08x, SBCB callbacks %08x\n", | |
905 | opregion->swsci_gbda_sub_functions, | |
906 | opregion->swsci_sbcb_sub_functions); | |
907 | } | |
908 | #else /* CONFIG_ACPI */ | |
909 | static inline void swsci_setup(struct drm_device *dev) {} | |
910 | #endif /* CONFIG_ACPI */ | |
44834a67 | 911 | |
b30581a4 JN |
912 | static int intel_no_opregion_vbt_callback(const struct dmi_system_id *id) |
913 | { | |
914 | DRM_DEBUG_KMS("Falling back to manually reading VBT from " | |
915 | "VBIOS ROM for %s\n", id->ident); | |
916 | return 1; | |
917 | } | |
918 | ||
919 | static const struct dmi_system_id intel_no_opregion_vbt[] = { | |
920 | { | |
921 | .callback = intel_no_opregion_vbt_callback, | |
922 | .ident = "ThinkCentre A57", | |
923 | .matches = { | |
924 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
925 | DMI_MATCH(DMI_PRODUCT_NAME, "97027RG"), | |
926 | }, | |
927 | }, | |
928 | { } | |
929 | }; | |
930 | ||
44834a67 | 931 | int intel_opregion_setup(struct drm_device *dev) |
8ee1c3db MG |
932 | { |
933 | struct drm_i915_private *dev_priv = dev->dev_private; | |
934 | struct intel_opregion *opregion = &dev_priv->opregion; | |
8ee1c3db | 935 | u32 asls, mboxes; |
5bc4418b | 936 | char buf[sizeof(OPREGION_SIGNATURE)]; |
8ee1c3db | 937 | int err = 0; |
115719fc | 938 | void *base; |
8ee1c3db | 939 | |
2d80391d JN |
940 | BUILD_BUG_ON(sizeof(struct opregion_header) != 0x100); |
941 | BUILD_BUG_ON(sizeof(struct opregion_acpi) != 0x100); | |
942 | BUILD_BUG_ON(sizeof(struct opregion_swsci) != 0x100); | |
943 | BUILD_BUG_ON(sizeof(struct opregion_asle) != 0x100); | |
b3cbd98b | 944 | BUILD_BUG_ON(sizeof(struct opregion_asle_ext) != 0x400); |
2d80391d | 945 | |
8ee1c3db | 946 | pci_read_config_dword(dev->pdev, PCI_ASLS, &asls); |
44d98a61 | 947 | DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); |
8ee1c3db | 948 | if (asls == 0) { |
44d98a61 | 949 | DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n"); |
8ee1c3db MG |
950 | return -ENOTSUPP; |
951 | } | |
952 | ||
1dca220b | 953 | #ifdef CONFIG_ACPI |
91a60f20 | 954 | INIT_WORK(&opregion->asle_work, asle_work); |
1dca220b | 955 | #endif |
91a60f20 | 956 | |
115719fc | 957 | base = memremap(asls, OPREGION_SIZE, MEMREMAP_WB); |
8ee1c3db MG |
958 | if (!base) |
959 | return -ENOMEM; | |
960 | ||
115719fc | 961 | memcpy(buf, base, sizeof(buf)); |
5bc4418b BW |
962 | |
963 | if (memcmp(buf, OPREGION_SIGNATURE, 16)) { | |
44d98a61 | 964 | DRM_DEBUG_DRIVER("opregion signature mismatch\n"); |
8ee1c3db MG |
965 | err = -EINVAL; |
966 | goto err_out; | |
967 | } | |
44834a67 | 968 | opregion->header = base; |
82d3c90c | 969 | opregion->lid_state = base + ACPI_CLID; |
01fe9dbd | 970 | |
115719fc | 971 | mboxes = opregion->header->mboxes; |
8ee1c3db | 972 | if (mboxes & MBOX_ACPI) { |
44d98a61 | 973 | DRM_DEBUG_DRIVER("Public ACPI methods supported\n"); |
8ee1c3db | 974 | opregion->acpi = base + OPREGION_ACPI_OFFSET; |
8ee1c3db | 975 | } |
8ee1c3db MG |
976 | |
977 | if (mboxes & MBOX_SWSCI) { | |
44d98a61 | 978 | DRM_DEBUG_DRIVER("SWSCI supported\n"); |
8ee1c3db | 979 | opregion->swsci = base + OPREGION_SWSCI_OFFSET; |
ebde53c7 | 980 | swsci_setup(dev); |
8ee1c3db | 981 | } |
b3cbd98b | 982 | |
8ee1c3db | 983 | if (mboxes & MBOX_ASLE) { |
44d98a61 | 984 | DRM_DEBUG_DRIVER("ASLE supported\n"); |
8ee1c3db | 985 | opregion->asle = base + OPREGION_ASLE_OFFSET; |
68bca4b0 | 986 | |
115719fc | 987 | opregion->asle->ardy = ASLE_ARDY_NOT_READY; |
8ee1c3db MG |
988 | } |
989 | ||
b3cbd98b D |
990 | if (mboxes & MBOX_ASLE_EXT) |
991 | DRM_DEBUG_DRIVER("ASLE extension supported\n"); | |
992 | ||
f0067a31 | 993 | if (!dmi_check_system(intel_no_opregion_vbt)) { |
04ebaadb JN |
994 | const void *vbt = NULL; |
995 | u32 vbt_size = 0; | |
996 | ||
997 | if (opregion->header->opregion_ver >= 2 && opregion->asle && | |
998 | opregion->asle->rvda && opregion->asle->rvds) { | |
999 | opregion->rvda = memremap(opregion->asle->rvda, | |
1000 | opregion->asle->rvds, | |
1001 | MEMREMAP_WB); | |
1002 | vbt = opregion->rvda; | |
1003 | vbt_size = opregion->asle->rvds; | |
1004 | } | |
f0067a31 JN |
1005 | |
1006 | if (intel_bios_is_valid_vbt(vbt, vbt_size)) { | |
04ebaadb | 1007 | DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (RVDA)\n"); |
f0067a31 | 1008 | opregion->vbt = vbt; |
ada8f955 | 1009 | opregion->vbt_size = vbt_size; |
04ebaadb JN |
1010 | } else { |
1011 | vbt = base + OPREGION_VBT_OFFSET; | |
1012 | vbt_size = OPREGION_ASLE_EXT_OFFSET - OPREGION_VBT_OFFSET; | |
1013 | if (intel_bios_is_valid_vbt(vbt, vbt_size)) { | |
1014 | DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (Mailbox #4)\n"); | |
1015 | opregion->vbt = vbt; | |
1016 | opregion->vbt_size = vbt_size; | |
1017 | } | |
f0067a31 JN |
1018 | } |
1019 | } | |
b30581a4 | 1020 | |
8ee1c3db MG |
1021 | return 0; |
1022 | ||
1023 | err_out: | |
115719fc | 1024 | memunmap(base); |
8ee1c3db MG |
1025 | return err; |
1026 | } |