Rev 5354 | Rev 6660 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
2327 | Serge | 1 | /* |
2 | * Copyright 2008 Intel Corporation |
||
3 | * Copyright 2008 Red Hat |
||
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 | |||
3031 | serge | 28 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
29 | |||
5060 | serge | 30 | #include |
31 | #include |
||
3031 | serge | 32 | |
33 | #include |
||
34 | #include |
||
2327 | Serge | 35 | #include "i915_drv.h" |
36 | #include "intel_drv.h" |
||
37 | |||
6084 | serge | 38 | #define PCI_ASLE 0xe4 |
39 | #define PCI_ASLS 0xfc |
||
4560 | Serge | 40 | #define PCI_SWSCI 0xe8 |
41 | #define PCI_SWSCI_SCISEL (1 << 15) |
||
42 | #define PCI_SWSCI_GSSCIE (1 << 0) |
||
2327 | Serge | 43 | |
44 | #define OPREGION_HEADER_OFFSET 0 |
||
45 | #define OPREGION_ACPI_OFFSET 0x100 |
||
46 | #define ACPI_CLID 0x01ac /* current lid state indicator */ |
||
47 | #define ACPI_CDCK 0x01b0 /* current docking state indicator */ |
||
48 | #define OPREGION_SWSCI_OFFSET 0x200 |
||
49 | #define OPREGION_ASLE_OFFSET 0x300 |
||
50 | #define OPREGION_VBT_OFFSET 0x400 |
||
51 | |||
52 | #define OPREGION_SIGNATURE "IntelGraphicsMem" |
||
53 | #define MBOX_ACPI (1<<0) |
||
54 | #define MBOX_SWSCI (1<<1) |
||
55 | #define MBOX_ASLE (1<<2) |
||
6084 | serge | 56 | #define MBOX_ASLE_EXT (1<<4) |
2327 | Serge | 57 | |
58 | struct opregion_header { |
||
6084 | serge | 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; |
||
66 | u32 driver_model; |
||
67 | u32 pcon; |
||
68 | u8 dver[32]; |
||
69 | u8 rsvd[124]; |
||
4560 | Serge | 70 | } __packed; |
2327 | Serge | 71 | |
72 | /* OpRegion mailbox #1: public ACPI methods */ |
||
73 | struct opregion_acpi { |
||
6084 | serge | 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 */ |
||
91 | u32 did2[7]; /* extended supported display devices ID list */ |
||
92 | u32 cpd2[7]; /* extended attached display devices list */ |
||
93 | u8 rsvd2[4]; |
||
4560 | Serge | 94 | } __packed; |
2327 | Serge | 95 | |
96 | /* OpRegion mailbox #2: SWSCI */ |
||
97 | struct opregion_swsci { |
||
6084 | serge | 98 | u32 scic; /* SWSCI command|status|data */ |
99 | u32 parm; /* command parameters */ |
||
100 | u32 dslp; /* driver sleep time-out */ |
||
101 | u8 rsvd[244]; |
||
4560 | Serge | 102 | } __packed; |
2327 | Serge | 103 | |
104 | /* OpRegion mailbox #3: ASLE */ |
||
105 | struct opregion_asle { |
||
6084 | serge | 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 */ |
||
4560 | Serge | 118 | u32 cddv; /* color correction default values */ |
119 | u32 pcft; /* power conservation features */ |
||
120 | u32 srot; /* supported rotation angles */ |
||
121 | u32 iuer; /* IUER events */ |
||
6084 | serge | 122 | u64 fdss; |
123 | u32 fdsp; |
||
124 | u32 stat; |
||
125 | u8 rsvd[70]; |
||
4560 | Serge | 126 | } __packed; |
2327 | Serge | 127 | |
4104 | Serge | 128 | /* Driver readiness indicator */ |
129 | #define ASLE_ARDY_READY (1 << 0) |
||
130 | #define ASLE_ARDY_NOT_READY (0 << 0) |
||
131 | |||
4560 | Serge | 132 | /* ASLE Interrupt Command (ASLC) bits */ |
133 | #define ASLC_SET_ALS_ILLUM (1 << 0) |
||
134 | #define ASLC_SET_BACKLIGHT (1 << 1) |
||
135 | #define ASLC_SET_PFIT (1 << 2) |
||
136 | #define ASLC_SET_PWM_FREQ (1 << 3) |
||
137 | #define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4) |
||
138 | #define ASLC_BUTTON_ARRAY (1 << 5) |
||
139 | #define ASLC_CONVERTIBLE_INDICATOR (1 << 6) |
||
140 | #define ASLC_DOCKING_INDICATOR (1 << 7) |
||
141 | #define ASLC_ISCT_STATE_CHANGE (1 << 8) |
||
142 | #define ASLC_REQ_MSK 0x1ff |
||
143 | /* response bits */ |
||
144 | #define ASLC_ALS_ILLUM_FAILED (1 << 10) |
||
145 | #define ASLC_BACKLIGHT_FAILED (1 << 12) |
||
146 | #define ASLC_PFIT_FAILED (1 << 14) |
||
147 | #define ASLC_PWM_FREQ_FAILED (1 << 16) |
||
148 | #define ASLC_ROTATION_ANGLES_FAILED (1 << 18) |
||
149 | #define ASLC_BUTTON_ARRAY_FAILED (1 << 20) |
||
150 | #define ASLC_CONVERTIBLE_FAILED (1 << 22) |
||
151 | #define ASLC_DOCKING_FAILED (1 << 24) |
||
152 | #define ASLC_ISCT_STATE_FAILED (1 << 26) |
||
2327 | Serge | 153 | |
4104 | Serge | 154 | /* Technology enabled indicator */ |
155 | #define ASLE_TCHE_ALS_EN (1 << 0) |
||
156 | #define ASLE_TCHE_BLC_EN (1 << 1) |
||
157 | #define ASLE_TCHE_PFIT_EN (1 << 2) |
||
158 | #define ASLE_TCHE_PFMB_EN (1 << 3) |
||
159 | |||
2327 | Serge | 160 | /* ASLE backlight brightness to set */ |
161 | #define ASLE_BCLP_VALID (1<<31) |
||
162 | #define ASLE_BCLP_MSK (~(1<<31)) |
||
163 | |||
164 | /* ASLE panel fitting request */ |
||
165 | #define ASLE_PFIT_VALID (1<<31) |
||
166 | #define ASLE_PFIT_CENTER (1<<0) |
||
167 | #define ASLE_PFIT_STRETCH_TEXT (1<<1) |
||
168 | #define ASLE_PFIT_STRETCH_GFX (1<<2) |
||
169 | |||
170 | /* PWM frequency and minimum brightness */ |
||
171 | #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) |
||
172 | #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) |
||
173 | #define ASLE_PFMB_PWM_MASK (0x7ffffe00) |
||
174 | #define ASLE_PFMB_PWM_VALID (1<<31) |
||
175 | |||
176 | #define ASLE_CBLV_VALID (1<<31) |
||
177 | |||
4560 | Serge | 178 | /* IUER */ |
179 | #define ASLE_IUER_DOCKING (1 << 7) |
||
180 | #define ASLE_IUER_CONVERTIBLE (1 << 6) |
||
181 | #define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4) |
||
182 | #define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3) |
||
183 | #define ASLE_IUER_VOLUME_UP_BTN (1 << 2) |
||
184 | #define ASLE_IUER_WINDOWS_BTN (1 << 1) |
||
185 | #define ASLE_IUER_POWER_BTN (1 << 0) |
||
186 | |||
187 | /* Software System Control Interrupt (SWSCI) */ |
||
188 | #define SWSCI_SCIC_INDICATOR (1 << 0) |
||
189 | #define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1 |
||
190 | #define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1) |
||
191 | #define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8 |
||
192 | #define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8) |
||
193 | #define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8 |
||
194 | #define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8) |
||
195 | #define SWSCI_SCIC_EXIT_STATUS_SHIFT 5 |
||
196 | #define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5) |
||
197 | #define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1 |
||
198 | |||
199 | #define SWSCI_FUNCTION_CODE(main, sub) \ |
||
200 | ((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \ |
||
201 | (sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT) |
||
202 | |||
203 | /* SWSCI: Get BIOS Data (GBDA) */ |
||
204 | #define SWSCI_GBDA 4 |
||
205 | #define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0) |
||
206 | #define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1) |
||
207 | #define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4) |
||
208 | #define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5) |
||
209 | #define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6) |
||
210 | #define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7) |
||
211 | #define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10) |
||
212 | |||
213 | /* SWSCI: System BIOS Callbacks (SBCB) */ |
||
214 | #define SWSCI_SBCB 6 |
||
215 | #define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0) |
||
216 | #define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1) |
||
217 | #define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3) |
||
218 | #define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4) |
||
219 | #define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5) |
||
220 | #define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6) |
||
221 | #define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7) |
||
222 | #define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8) |
||
223 | #define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9) |
||
224 | #define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10) |
||
225 | #define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11) |
||
226 | #define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16) |
||
227 | #define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17) |
||
228 | #define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18) |
||
229 | #define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19) |
||
230 | #define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21) |
||
231 | |||
2327 | Serge | 232 | #define ACPI_OTHER_OUTPUT (0<<8) |
233 | #define ACPI_VGA_OUTPUT (1<<8) |
||
234 | #define ACPI_TV_OUTPUT (2<<8) |
||
235 | #define ACPI_DIGITAL_OUTPUT (3<<8) |
||
236 | #define ACPI_LVDS_OUTPUT (4<<8) |
||
237 | |||
5060 | serge | 238 | #define MAX_DSLP 1500 |
239 | |||
2327 | Serge | 240 | #ifdef CONFIG_ACPI |
4560 | Serge | 241 | static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out) |
242 | { |
||
243 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
6084 | serge | 244 | struct opregion_swsci *swsci = dev_priv->opregion.swsci; |
4560 | Serge | 245 | u32 main_function, sub_function, scic; |
246 | u16 pci_swsci; |
||
247 | u32 dslp; |
||
2327 | Serge | 248 | |
4560 | Serge | 249 | if (!swsci) |
250 | return -ENODEV; |
||
251 | |||
252 | main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >> |
||
253 | SWSCI_SCIC_MAIN_FUNCTION_SHIFT; |
||
254 | sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >> |
||
255 | SWSCI_SCIC_SUB_FUNCTION_SHIFT; |
||
256 | |||
257 | /* Check if we can call the function. See swsci_setup for details. */ |
||
258 | if (main_function == SWSCI_SBCB) { |
||
259 | if ((dev_priv->opregion.swsci_sbcb_sub_functions & |
||
260 | (1 << sub_function)) == 0) |
||
261 | return -EINVAL; |
||
262 | } else if (main_function == SWSCI_GBDA) { |
||
263 | if ((dev_priv->opregion.swsci_gbda_sub_functions & |
||
264 | (1 << sub_function)) == 0) |
||
265 | return -EINVAL; |
||
266 | } |
||
267 | |||
268 | /* Driver sleep timeout in ms. */ |
||
6084 | serge | 269 | dslp = swsci->dslp; |
4560 | Serge | 270 | if (!dslp) { |
271 | /* The spec says 2ms should be the default, but it's too small |
||
272 | * for some machines. */ |
||
273 | dslp = 50; |
||
5060 | serge | 274 | } else if (dslp > MAX_DSLP) { |
4560 | Serge | 275 | /* Hey bios, trust must be earned. */ |
5060 | serge | 276 | DRM_INFO_ONCE("ACPI BIOS requests an excessive sleep of %u ms, " |
277 | "using %u ms instead\n", dslp, MAX_DSLP); |
||
278 | dslp = MAX_DSLP; |
||
4560 | Serge | 279 | } |
280 | |||
281 | /* The spec tells us to do this, but we are the only user... */ |
||
6084 | serge | 282 | scic = swsci->scic; |
4560 | Serge | 283 | if (scic & SWSCI_SCIC_INDICATOR) { |
284 | DRM_DEBUG_DRIVER("SWSCI request already in progress\n"); |
||
285 | return -EBUSY; |
||
286 | } |
||
287 | |||
288 | scic = function | SWSCI_SCIC_INDICATOR; |
||
289 | |||
6084 | serge | 290 | swsci->parm = parm; |
291 | swsci->scic = scic; |
||
4560 | Serge | 292 | |
293 | /* Ensure SCI event is selected and event trigger is cleared. */ |
||
294 | pci_read_config_word(dev->pdev, PCI_SWSCI, &pci_swsci); |
||
295 | if (!(pci_swsci & PCI_SWSCI_SCISEL) || (pci_swsci & PCI_SWSCI_GSSCIE)) { |
||
296 | pci_swsci |= PCI_SWSCI_SCISEL; |
||
297 | pci_swsci &= ~PCI_SWSCI_GSSCIE; |
||
298 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
||
299 | } |
||
300 | |||
301 | /* Use event trigger to tell bios to check the mail. */ |
||
302 | pci_swsci |= PCI_SWSCI_GSSCIE; |
||
303 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
||
304 | |||
305 | /* Poll for the result. */ |
||
6084 | serge | 306 | #define C (((scic = swsci->scic) & SWSCI_SCIC_INDICATOR) == 0) |
4560 | Serge | 307 | if (wait_for(C, dslp)) { |
308 | DRM_DEBUG_DRIVER("SWSCI request timed out\n"); |
||
309 | return -ETIMEDOUT; |
||
310 | } |
||
311 | |||
312 | scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >> |
||
313 | SWSCI_SCIC_EXIT_STATUS_SHIFT; |
||
314 | |||
315 | /* Note: scic == 0 is an error! */ |
||
316 | if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) { |
||
317 | DRM_DEBUG_DRIVER("SWSCI request error %u\n", scic); |
||
318 | return -EIO; |
||
319 | } |
||
320 | |||
321 | if (parm_out) |
||
6084 | serge | 322 | *parm_out = swsci->parm; |
4560 | Serge | 323 | |
324 | return 0; |
||
325 | |||
326 | #undef C |
||
327 | } |
||
328 | |||
329 | #define DISPLAY_TYPE_CRT 0 |
||
330 | #define DISPLAY_TYPE_TV 1 |
||
331 | #define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2 |
||
332 | #define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3 |
||
333 | |||
334 | int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, |
||
335 | bool enable) |
||
336 | { |
||
337 | struct drm_device *dev = intel_encoder->base.dev; |
||
338 | u32 parm = 0; |
||
339 | u32 type = 0; |
||
340 | u32 port; |
||
341 | |||
342 | /* don't care about old stuff for now */ |
||
343 | if (!HAS_DDI(dev)) |
||
344 | return 0; |
||
345 | |||
6084 | serge | 346 | if (intel_encoder->type == INTEL_OUTPUT_DSI) |
4560 | Serge | 347 | port = 0; |
6084 | serge | 348 | else |
349 | port = intel_ddi_get_encoder_port(intel_encoder); |
||
350 | |||
351 | if (port == PORT_E) { |
||
352 | port = 0; |
||
4560 | Serge | 353 | } else { |
354 | parm |= 1 << port; |
||
355 | port++; |
||
356 | } |
||
357 | |||
358 | if (!enable) |
||
359 | parm |= 4 << 8; |
||
360 | |||
361 | switch (intel_encoder->type) { |
||
362 | case INTEL_OUTPUT_ANALOG: |
||
363 | type = DISPLAY_TYPE_CRT; |
||
364 | break; |
||
365 | case INTEL_OUTPUT_UNKNOWN: |
||
366 | case INTEL_OUTPUT_DISPLAYPORT: |
||
367 | case INTEL_OUTPUT_HDMI: |
||
5060 | serge | 368 | case INTEL_OUTPUT_DP_MST: |
4560 | Serge | 369 | type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL; |
370 | break; |
||
371 | case INTEL_OUTPUT_EDP: |
||
6084 | serge | 372 | case INTEL_OUTPUT_DSI: |
4560 | Serge | 373 | type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL; |
374 | break; |
||
375 | default: |
||
376 | WARN_ONCE(1, "unsupported intel_encoder type %d\n", |
||
377 | intel_encoder->type); |
||
378 | return -EINVAL; |
||
379 | } |
||
380 | |||
381 | parm |= type << (16 + port * 3); |
||
382 | |||
383 | return swsci(dev, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL); |
||
384 | } |
||
385 | |||
386 | static const struct { |
||
387 | pci_power_t pci_power_state; |
||
388 | u32 parm; |
||
389 | } power_state_map[] = { |
||
390 | { PCI_D0, 0x00 }, |
||
391 | { PCI_D1, 0x01 }, |
||
392 | { PCI_D2, 0x02 }, |
||
393 | { PCI_D3hot, 0x04 }, |
||
394 | { PCI_D3cold, 0x04 }, |
||
395 | }; |
||
396 | |||
397 | int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state) |
||
398 | { |
||
399 | int i; |
||
400 | |||
401 | if (!HAS_DDI(dev)) |
||
402 | return 0; |
||
403 | |||
404 | for (i = 0; i < ARRAY_SIZE(power_state_map); i++) { |
||
405 | if (state == power_state_map[i].pci_power_state) |
||
406 | return swsci(dev, SWSCI_SBCB_ADAPTER_POWER_STATE, |
||
407 | power_state_map[i].parm, NULL); |
||
408 | } |
||
409 | |||
410 | return -EINVAL; |
||
411 | } |
||
412 | |||
413 | static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) |
||
414 | { |
||
415 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
416 | struct intel_connector *intel_connector; |
||
6084 | serge | 417 | struct opregion_asle *asle = dev_priv->opregion.asle; |
4560 | Serge | 418 | |
419 | DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); |
||
420 | |||
6084 | serge | 421 | if (acpi_video_get_backlight_type() == acpi_backlight_native) { |
5060 | serge | 422 | DRM_DEBUG_KMS("opregion backlight request ignored\n"); |
423 | return 0; |
||
424 | } |
||
425 | |||
4560 | Serge | 426 | if (!(bclp & ASLE_BCLP_VALID)) |
427 | return ASLC_BACKLIGHT_FAILED; |
||
428 | |||
429 | bclp &= ASLE_BCLP_MSK; |
||
430 | if (bclp > 255) |
||
431 | return ASLC_BACKLIGHT_FAILED; |
||
432 | |||
5060 | serge | 433 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
4560 | Serge | 434 | |
435 | /* |
||
436 | * Update backlight on all connectors that support backlight (usually |
||
437 | * only one). |
||
438 | */ |
||
439 | DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp); |
||
440 | list_for_each_entry(intel_connector, &dev->mode_config.connector_list, base.head) |
||
5060 | serge | 441 | intel_panel_set_backlight_acpi(intel_connector, bclp, 255); |
6084 | serge | 442 | asle->cblv = DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID; |
4560 | Serge | 443 | |
5060 | serge | 444 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
4560 | Serge | 445 | |
446 | |||
447 | return 0; |
||
448 | } |
||
449 | |||
450 | static u32 asle_set_als_illum(struct drm_device *dev, u32 alsi) |
||
451 | { |
||
452 | /* alsi is the current ALS reading in lux. 0 indicates below sensor |
||
453 | range, 0xffff indicates above sensor range. 1-0xfffe are valid */ |
||
454 | DRM_DEBUG_DRIVER("Illum is not supported\n"); |
||
455 | return ASLC_ALS_ILLUM_FAILED; |
||
456 | } |
||
457 | |||
458 | static u32 asle_set_pwm_freq(struct drm_device *dev, u32 pfmb) |
||
459 | { |
||
460 | DRM_DEBUG_DRIVER("PWM freq is not supported\n"); |
||
461 | return ASLC_PWM_FREQ_FAILED; |
||
462 | } |
||
463 | |||
464 | static u32 asle_set_pfit(struct drm_device *dev, u32 pfit) |
||
465 | { |
||
466 | /* Panel fitting is currently controlled by the X code, so this is a |
||
467 | noop until modesetting support works fully */ |
||
468 | DRM_DEBUG_DRIVER("Pfit is not supported\n"); |
||
469 | return ASLC_PFIT_FAILED; |
||
470 | } |
||
471 | |||
472 | static u32 asle_set_supported_rotation_angles(struct drm_device *dev, u32 srot) |
||
473 | { |
||
474 | DRM_DEBUG_DRIVER("SROT is not supported\n"); |
||
475 | return ASLC_ROTATION_ANGLES_FAILED; |
||
476 | } |
||
477 | |||
478 | static u32 asle_set_button_array(struct drm_device *dev, u32 iuer) |
||
479 | { |
||
480 | if (!iuer) |
||
481 | DRM_DEBUG_DRIVER("Button array event is not supported (nothing)\n"); |
||
482 | if (iuer & ASLE_IUER_ROTATION_LOCK_BTN) |
||
483 | DRM_DEBUG_DRIVER("Button array event is not supported (rotation lock)\n"); |
||
484 | if (iuer & ASLE_IUER_VOLUME_DOWN_BTN) |
||
485 | DRM_DEBUG_DRIVER("Button array event is not supported (volume down)\n"); |
||
486 | if (iuer & ASLE_IUER_VOLUME_UP_BTN) |
||
487 | DRM_DEBUG_DRIVER("Button array event is not supported (volume up)\n"); |
||
488 | if (iuer & ASLE_IUER_WINDOWS_BTN) |
||
489 | DRM_DEBUG_DRIVER("Button array event is not supported (windows)\n"); |
||
490 | if (iuer & ASLE_IUER_POWER_BTN) |
||
491 | DRM_DEBUG_DRIVER("Button array event is not supported (power)\n"); |
||
492 | |||
493 | return ASLC_BUTTON_ARRAY_FAILED; |
||
494 | } |
||
495 | |||
496 | static u32 asle_set_convertible(struct drm_device *dev, u32 iuer) |
||
497 | { |
||
498 | if (iuer & ASLE_IUER_CONVERTIBLE) |
||
499 | DRM_DEBUG_DRIVER("Convertible is not supported (clamshell)\n"); |
||
500 | else |
||
501 | DRM_DEBUG_DRIVER("Convertible is not supported (slate)\n"); |
||
502 | |||
503 | return ASLC_CONVERTIBLE_FAILED; |
||
504 | } |
||
505 | |||
506 | static u32 asle_set_docking(struct drm_device *dev, u32 iuer) |
||
507 | { |
||
508 | if (iuer & ASLE_IUER_DOCKING) |
||
509 | DRM_DEBUG_DRIVER("Docking is not supported (docked)\n"); |
||
510 | else |
||
511 | DRM_DEBUG_DRIVER("Docking is not supported (undocked)\n"); |
||
512 | |||
513 | return ASLC_DOCKING_FAILED; |
||
514 | } |
||
515 | |||
516 | static u32 asle_isct_state(struct drm_device *dev) |
||
517 | { |
||
518 | DRM_DEBUG_DRIVER("ISCT is not supported\n"); |
||
519 | return ASLC_ISCT_STATE_FAILED; |
||
520 | } |
||
521 | |||
522 | static void asle_work(struct work_struct *work) |
||
523 | { |
||
524 | struct intel_opregion *opregion = |
||
525 | container_of(work, struct intel_opregion, asle_work); |
||
526 | struct drm_i915_private *dev_priv = |
||
527 | container_of(opregion, struct drm_i915_private, opregion); |
||
528 | struct drm_device *dev = dev_priv->dev; |
||
6084 | serge | 529 | struct opregion_asle *asle = dev_priv->opregion.asle; |
4560 | Serge | 530 | u32 aslc_stat = 0; |
531 | u32 aslc_req; |
||
532 | |||
533 | if (!asle) |
||
534 | return; |
||
535 | |||
6084 | serge | 536 | aslc_req = asle->aslc; |
4560 | Serge | 537 | |
538 | if (!(aslc_req & ASLC_REQ_MSK)) { |
||
539 | DRM_DEBUG_DRIVER("No request on ASLC interrupt 0x%08x\n", |
||
540 | aslc_req); |
||
541 | return; |
||
542 | } |
||
543 | |||
544 | if (aslc_req & ASLC_SET_ALS_ILLUM) |
||
6084 | serge | 545 | aslc_stat |= asle_set_als_illum(dev, asle->alsi); |
4560 | Serge | 546 | |
547 | if (aslc_req & ASLC_SET_BACKLIGHT) |
||
6084 | serge | 548 | aslc_stat |= asle_set_backlight(dev, asle->bclp); |
4560 | Serge | 549 | |
550 | if (aslc_req & ASLC_SET_PFIT) |
||
6084 | serge | 551 | aslc_stat |= asle_set_pfit(dev, asle->pfit); |
4560 | Serge | 552 | |
553 | if (aslc_req & ASLC_SET_PWM_FREQ) |
||
6084 | serge | 554 | aslc_stat |= asle_set_pwm_freq(dev, asle->pfmb); |
4560 | Serge | 555 | |
556 | if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES) |
||
557 | aslc_stat |= asle_set_supported_rotation_angles(dev, |
||
6084 | serge | 558 | asle->srot); |
4560 | Serge | 559 | |
560 | if (aslc_req & ASLC_BUTTON_ARRAY) |
||
6084 | serge | 561 | aslc_stat |= asle_set_button_array(dev, asle->iuer); |
4560 | Serge | 562 | |
563 | if (aslc_req & ASLC_CONVERTIBLE_INDICATOR) |
||
6084 | serge | 564 | aslc_stat |= asle_set_convertible(dev, asle->iuer); |
4560 | Serge | 565 | |
566 | if (aslc_req & ASLC_DOCKING_INDICATOR) |
||
6084 | serge | 567 | aslc_stat |= asle_set_docking(dev, asle->iuer); |
4560 | Serge | 568 | |
569 | if (aslc_req & ASLC_ISCT_STATE_CHANGE) |
||
570 | aslc_stat |= asle_isct_state(dev); |
||
571 | |||
6084 | serge | 572 | asle->aslc = aslc_stat; |
4560 | Serge | 573 | } |
574 | |||
575 | void intel_opregion_asle_intr(struct drm_device *dev) |
||
576 | { |
||
577 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
578 | |||
579 | if (dev_priv->opregion.asle) |
||
580 | schedule_work(&dev_priv->opregion.asle_work); |
||
581 | } |
||
582 | |||
583 | #define ACPI_EV_DISPLAY_SWITCH (1<<0) |
||
584 | #define ACPI_EV_LID (1<<1) |
||
585 | #define ACPI_EV_DOCK (1<<2) |
||
586 | |||
587 | static struct intel_opregion *system_opregion; |
||
588 | |||
589 | static int intel_opregion_video_event(struct notifier_block *nb, |
||
590 | unsigned long val, void *data) |
||
591 | { |
||
592 | /* The only video events relevant to opregion are 0x80. These indicate |
||
593 | either a docking event, lid switch or display switch request. In |
||
594 | Linux, these are handled by the dock, button and video drivers. |
||
595 | */ |
||
596 | |||
597 | struct acpi_bus_event *event = data; |
||
6084 | serge | 598 | struct opregion_acpi *acpi; |
4560 | Serge | 599 | int ret = NOTIFY_OK; |
600 | |||
601 | if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) |
||
602 | return NOTIFY_DONE; |
||
603 | |||
604 | if (!system_opregion) |
||
605 | return NOTIFY_DONE; |
||
606 | |||
607 | acpi = system_opregion->acpi; |
||
608 | |||
6084 | serge | 609 | if (event->type == 0x80 && ((acpi->cevt & 1) == 0)) |
4560 | Serge | 610 | ret = NOTIFY_BAD; |
611 | |||
6084 | serge | 612 | acpi->csts = 0; |
4560 | Serge | 613 | |
614 | return ret; |
||
615 | } |
||
616 | |||
617 | static struct notifier_block intel_opregion_notifier = { |
||
618 | .notifier_call = intel_opregion_video_event, |
||
619 | }; |
||
620 | |||
621 | /* |
||
622 | * Initialise the DIDL field in opregion. This passes a list of devices to |
||
623 | * the firmware. Values are defined by section B.4.2 of the ACPI specification |
||
624 | * (version 3) |
||
625 | */ |
||
626 | |||
6084 | serge | 627 | static u32 get_did(struct intel_opregion *opregion, int i) |
628 | { |
||
629 | u32 did; |
||
630 | |||
631 | if (i < ARRAY_SIZE(opregion->acpi->didl)) { |
||
632 | did = opregion->acpi->didl[i]; |
||
633 | } else { |
||
634 | i -= ARRAY_SIZE(opregion->acpi->didl); |
||
635 | |||
636 | if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) |
||
637 | return 0; |
||
638 | |||
639 | did = opregion->acpi->did2[i]; |
||
640 | } |
||
641 | |||
642 | return did; |
||
643 | } |
||
644 | |||
645 | static void set_did(struct intel_opregion *opregion, int i, u32 val) |
||
646 | { |
||
647 | if (i < ARRAY_SIZE(opregion->acpi->didl)) { |
||
648 | opregion->acpi->didl[i] = val; |
||
649 | } else { |
||
650 | i -= ARRAY_SIZE(opregion->acpi->didl); |
||
651 | |||
652 | if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) |
||
653 | return; |
||
654 | |||
655 | opregion->acpi->did2[i] = val; |
||
656 | } |
||
657 | } |
||
658 | |||
4560 | Serge | 659 | static void intel_didl_outputs(struct drm_device *dev) |
660 | { |
||
661 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
662 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
663 | struct drm_connector *connector; |
||
664 | acpi_handle handle; |
||
665 | struct acpi_device *acpi_dev, *acpi_cdev, *acpi_video_bus = NULL; |
||
666 | unsigned long long device_id; |
||
667 | acpi_status status; |
||
6084 | serge | 668 | u32 temp, max_outputs; |
4560 | Serge | 669 | int i = 0; |
670 | |||
671 | handle = ACPI_HANDLE(&dev->pdev->dev); |
||
672 | if (!handle || acpi_bus_get_device(handle, &acpi_dev)) |
||
673 | return; |
||
674 | |||
675 | if (acpi_is_video_device(handle)) |
||
676 | acpi_video_bus = acpi_dev; |
||
677 | else { |
||
678 | list_for_each_entry(acpi_cdev, &acpi_dev->children, node) { |
||
679 | if (acpi_is_video_device(acpi_cdev->handle)) { |
||
680 | acpi_video_bus = acpi_cdev; |
||
681 | break; |
||
682 | } |
||
683 | } |
||
684 | } |
||
685 | |||
686 | if (!acpi_video_bus) { |
||
6084 | serge | 687 | DRM_ERROR("No ACPI video bus found\n"); |
4560 | Serge | 688 | return; |
689 | } |
||
690 | |||
6084 | serge | 691 | /* |
692 | * In theory, did2, the extended didl, gets added at opregion version |
||
693 | * 3.0. In practice, however, we're supposed to set it for earlier |
||
694 | * versions as well, since a BIOS that doesn't understand did2 should |
||
695 | * not look at it anyway. Use a variable so we can tweak this if a need |
||
696 | * arises later. |
||
697 | */ |
||
698 | max_outputs = ARRAY_SIZE(opregion->acpi->didl) + |
||
699 | ARRAY_SIZE(opregion->acpi->did2); |
||
700 | |||
4560 | Serge | 701 | list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) { |
6084 | serge | 702 | if (i >= max_outputs) { |
703 | DRM_DEBUG_KMS("More than %u outputs detected via ACPI\n", |
||
704 | max_outputs); |
||
4560 | Serge | 705 | return; |
706 | } |
||
6084 | serge | 707 | status = acpi_evaluate_integer(acpi_cdev->handle, "_ADR", |
708 | NULL, &device_id); |
||
4560 | Serge | 709 | if (ACPI_SUCCESS(status)) { |
710 | if (!device_id) |
||
711 | goto blind_set; |
||
6084 | serge | 712 | set_did(opregion, i++, (u32)(device_id & 0x0f0f)); |
4560 | Serge | 713 | } |
714 | } |
||
715 | |||
716 | end: |
||
6084 | serge | 717 | DRM_DEBUG_KMS("%d outputs detected\n", i); |
718 | |||
719 | /* If fewer than max outputs, the list must be null terminated */ |
||
720 | if (i < max_outputs) |
||
721 | set_did(opregion, i, 0); |
||
4560 | Serge | 722 | return; |
723 | |||
724 | blind_set: |
||
725 | i = 0; |
||
726 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
727 | int output_type = ACPI_OTHER_OUTPUT; |
||
6084 | serge | 728 | if (i >= max_outputs) { |
729 | DRM_DEBUG_KMS("More than %u outputs in connector list\n", |
||
730 | max_outputs); |
||
4560 | Serge | 731 | return; |
732 | } |
||
733 | switch (connector->connector_type) { |
||
734 | case DRM_MODE_CONNECTOR_VGA: |
||
735 | case DRM_MODE_CONNECTOR_DVIA: |
||
736 | output_type = ACPI_VGA_OUTPUT; |
||
737 | break; |
||
738 | case DRM_MODE_CONNECTOR_Composite: |
||
739 | case DRM_MODE_CONNECTOR_SVIDEO: |
||
740 | case DRM_MODE_CONNECTOR_Component: |
||
741 | case DRM_MODE_CONNECTOR_9PinDIN: |
||
742 | output_type = ACPI_TV_OUTPUT; |
||
743 | break; |
||
744 | case DRM_MODE_CONNECTOR_DVII: |
||
745 | case DRM_MODE_CONNECTOR_DVID: |
||
746 | case DRM_MODE_CONNECTOR_DisplayPort: |
||
747 | case DRM_MODE_CONNECTOR_HDMIA: |
||
748 | case DRM_MODE_CONNECTOR_HDMIB: |
||
749 | output_type = ACPI_DIGITAL_OUTPUT; |
||
750 | break; |
||
751 | case DRM_MODE_CONNECTOR_LVDS: |
||
752 | output_type = ACPI_LVDS_OUTPUT; |
||
753 | break; |
||
754 | } |
||
6084 | serge | 755 | temp = get_did(opregion, i); |
756 | set_did(opregion, i, temp | (1 << 31) | output_type | i); |
||
4560 | Serge | 757 | i++; |
758 | } |
||
759 | goto end; |
||
760 | } |
||
761 | |||
762 | static void intel_setup_cadls(struct drm_device *dev) |
||
763 | { |
||
764 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
765 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
766 | int i = 0; |
||
767 | u32 disp_id; |
||
768 | |||
769 | /* Initialize the CADL field by duplicating the DIDL values. |
||
770 | * Technically, this is not always correct as display outputs may exist, |
||
771 | * but not active. This initialization is necessary for some Clevo |
||
772 | * laptops that check this field before processing the brightness and |
||
773 | * display switching hotkeys. Just like DIDL, CADL is NULL-terminated if |
||
774 | * there are less than eight devices. */ |
||
775 | do { |
||
6084 | serge | 776 | disp_id = get_did(opregion, i); |
777 | opregion->acpi->cadl[i] = disp_id; |
||
4560 | Serge | 778 | } while (++i < 8 && disp_id != 0); |
779 | } |
||
780 | |||
781 | void intel_opregion_init(struct drm_device *dev) |
||
782 | { |
||
783 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
784 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
785 | |||
786 | if (!opregion->header) |
||
787 | return; |
||
788 | |||
789 | if (opregion->acpi) { |
||
6084 | serge | 790 | intel_didl_outputs(dev); |
791 | intel_setup_cadls(dev); |
||
4560 | Serge | 792 | |
793 | /* Notify BIOS we are ready to handle ACPI video ext notifs. |
||
794 | * Right now, all the events are handled by the ACPI video module. |
||
795 | * We don't actually need to do anything with them. */ |
||
6084 | serge | 796 | opregion->acpi->csts = 0; |
797 | opregion->acpi->drdy = 1; |
||
4560 | Serge | 798 | |
799 | system_opregion = opregion; |
||
800 | register_acpi_notifier(&intel_opregion_notifier); |
||
801 | } |
||
802 | |||
803 | if (opregion->asle) { |
||
6084 | serge | 804 | opregion->asle->tche = ASLE_TCHE_BLC_EN; |
805 | opregion->asle->ardy = ASLE_ARDY_READY; |
||
4560 | Serge | 806 | } |
807 | } |
||
808 | |||
809 | void intel_opregion_fini(struct drm_device *dev) |
||
810 | { |
||
811 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
812 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
813 | |||
814 | if (!opregion->header) |
||
815 | return; |
||
816 | |||
817 | if (opregion->asle) |
||
6084 | serge | 818 | opregion->asle->ardy = ASLE_ARDY_NOT_READY; |
4560 | Serge | 819 | |
820 | cancel_work_sync(&dev_priv->opregion.asle_work); |
||
821 | |||
822 | if (opregion->acpi) { |
||
6084 | serge | 823 | opregion->acpi->drdy = 0; |
4560 | Serge | 824 | |
825 | system_opregion = NULL; |
||
826 | unregister_acpi_notifier(&intel_opregion_notifier); |
||
827 | } |
||
828 | |||
829 | /* just clear all opregion memory pointers now */ |
||
6084 | serge | 830 | memunmap(opregion->header); |
4560 | Serge | 831 | opregion->header = NULL; |
832 | opregion->acpi = NULL; |
||
833 | opregion->swsci = NULL; |
||
834 | opregion->asle = NULL; |
||
835 | opregion->vbt = NULL; |
||
836 | opregion->lid_state = NULL; |
||
837 | } |
||
838 | |||
839 | static void swsci_setup(struct drm_device *dev) |
||
840 | { |
||
841 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
842 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
843 | bool requested_callbacks = false; |
||
844 | u32 tmp; |
||
845 | |||
846 | /* Sub-function code 0 is okay, let's allow them. */ |
||
847 | opregion->swsci_gbda_sub_functions = 1; |
||
848 | opregion->swsci_sbcb_sub_functions = 1; |
||
849 | |||
850 | /* We use GBDA to ask for supported GBDA calls. */ |
||
851 | if (swsci(dev, SWSCI_GBDA_SUPPORTED_CALLS, 0, &tmp) == 0) { |
||
852 | /* make the bits match the sub-function codes */ |
||
853 | tmp <<= 1; |
||
854 | opregion->swsci_gbda_sub_functions |= tmp; |
||
855 | } |
||
856 | |||
857 | /* |
||
858 | * We also use GBDA to ask for _requested_ SBCB callbacks. The driver |
||
859 | * must not call interfaces that are not specifically requested by the |
||
860 | * bios. |
||
861 | */ |
||
862 | if (swsci(dev, SWSCI_GBDA_REQUESTED_CALLBACKS, 0, &tmp) == 0) { |
||
863 | /* here, the bits already match sub-function codes */ |
||
864 | opregion->swsci_sbcb_sub_functions |= tmp; |
||
865 | requested_callbacks = true; |
||
866 | } |
||
867 | |||
868 | /* |
||
869 | * But we use SBCB to ask for _supported_ SBCB calls. This does not mean |
||
870 | * the callback is _requested_. But we still can't call interfaces that |
||
871 | * are not requested. |
||
872 | */ |
||
873 | if (swsci(dev, SWSCI_SBCB_SUPPORTED_CALLBACKS, 0, &tmp) == 0) { |
||
874 | /* make the bits match the sub-function codes */ |
||
875 | u32 low = tmp & 0x7ff; |
||
876 | u32 high = tmp & ~0xfff; /* bit 11 is reserved */ |
||
877 | tmp = (high << 4) | (low << 1) | 1; |
||
878 | |||
879 | /* best guess what to do with supported wrt requested */ |
||
880 | if (requested_callbacks) { |
||
881 | u32 req = opregion->swsci_sbcb_sub_functions; |
||
882 | if ((req & tmp) != req) |
||
883 | DRM_DEBUG_DRIVER("SWSCI BIOS requested (%08x) SBCB callbacks that are not supported (%08x)\n", req, tmp); |
||
884 | /* XXX: for now, trust the requested callbacks */ |
||
885 | /* opregion->swsci_sbcb_sub_functions &= tmp; */ |
||
886 | } else { |
||
887 | opregion->swsci_sbcb_sub_functions |= tmp; |
||
888 | } |
||
889 | } |
||
890 | |||
891 | DRM_DEBUG_DRIVER("SWSCI GBDA callbacks %08x, SBCB callbacks %08x\n", |
||
892 | opregion->swsci_gbda_sub_functions, |
||
893 | opregion->swsci_sbcb_sub_functions); |
||
894 | } |
||
895 | #else /* CONFIG_ACPI */ |
||
896 | static inline void swsci_setup(struct drm_device *dev) {} |
||
897 | #endif /* CONFIG_ACPI */ |
||
898 | |||
2327 | Serge | 899 | int intel_opregion_setup(struct drm_device *dev) |
900 | { |
||
901 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
902 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
903 | u32 asls, mboxes; |
||
3031 | serge | 904 | char buf[sizeof(OPREGION_SIGNATURE)]; |
2327 | Serge | 905 | int err = 0; |
6084 | serge | 906 | void *base; |
2327 | Serge | 907 | |
6084 | serge | 908 | BUILD_BUG_ON(sizeof(struct opregion_header) != 0x100); |
909 | BUILD_BUG_ON(sizeof(struct opregion_acpi) != 0x100); |
||
910 | BUILD_BUG_ON(sizeof(struct opregion_swsci) != 0x100); |
||
911 | BUILD_BUG_ON(sizeof(struct opregion_asle) != 0x100); |
||
912 | |||
2327 | Serge | 913 | pci_read_config_dword(dev->pdev, PCI_ASLS, &asls); |
914 | DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); |
||
915 | if (asls == 0) { |
||
916 | DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n"); |
||
917 | return -ENOTSUPP; |
||
918 | } |
||
919 | |||
5060 | serge | 920 | #ifdef CONFIG_ACPI |
921 | INIT_WORK(&opregion->asle_work, asle_work); |
||
922 | #endif |
||
923 | |||
6084 | serge | 924 | base = memremap(asls, OPREGION_SIZE, MEMREMAP_WB); |
2327 | Serge | 925 | if (!base) |
926 | return -ENOMEM; |
||
927 | |||
6084 | serge | 928 | memcpy(buf, base, sizeof(buf)); |
3031 | serge | 929 | |
930 | if (memcmp(buf, OPREGION_SIGNATURE, 16)) { |
||
2327 | Serge | 931 | DRM_DEBUG_DRIVER("opregion signature mismatch\n"); |
932 | err = -EINVAL; |
||
933 | goto err_out; |
||
934 | } |
||
935 | opregion->header = base; |
||
936 | opregion->vbt = base + OPREGION_VBT_OFFSET; |
||
937 | |||
938 | opregion->lid_state = base + ACPI_CLID; |
||
939 | |||
6084 | serge | 940 | mboxes = opregion->header->mboxes; |
2327 | Serge | 941 | if (mboxes & MBOX_ACPI) { |
942 | DRM_DEBUG_DRIVER("Public ACPI methods supported\n"); |
||
943 | opregion->acpi = base + OPREGION_ACPI_OFFSET; |
||
944 | } |
||
945 | |||
946 | if (mboxes & MBOX_SWSCI) { |
||
947 | DRM_DEBUG_DRIVER("SWSCI supported\n"); |
||
948 | opregion->swsci = base + OPREGION_SWSCI_OFFSET; |
||
4560 | Serge | 949 | swsci_setup(dev); |
2327 | Serge | 950 | } |
951 | if (mboxes & MBOX_ASLE) { |
||
952 | DRM_DEBUG_DRIVER("ASLE supported\n"); |
||
953 | opregion->asle = base + OPREGION_ASLE_OFFSET; |
||
4104 | Serge | 954 | |
6084 | serge | 955 | opregion->asle->ardy = ASLE_ARDY_NOT_READY; |
2327 | Serge | 956 | } |
957 | |||
958 | return 0; |
||
959 | |||
960 | err_out: |
||
6084 | serge | 961 | memunmap(base); |
2327 | Serge | 962 | return err; |
963 | }><>><>=><=>>><>>>>2) |