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> 29 #include <linux/dmi.h> 30 #include <linux/firmware.h> 31 #include <acpi/video.h> 32 33 #include <drm/i915_drm.h> 34 35 #include "display/intel_panel.h" 36 37 #include "i915_drv.h" 38 #include "intel_display_types.h" 39 #include "intel_opregion.h" 40 41 #define OPREGION_HEADER_OFFSET 0 42 #define OPREGION_ACPI_OFFSET 0x100 43 #define ACPI_CLID 0x01ac /* current lid state indicator */ 44 #define ACPI_CDCK 0x01b0 /* current docking state indicator */ 45 #define OPREGION_SWSCI_OFFSET 0x200 46 #define OPREGION_ASLE_OFFSET 0x300 47 #define OPREGION_VBT_OFFSET 0x400 48 #define OPREGION_ASLE_EXT_OFFSET 0x1C00 49 50 #define OPREGION_SIGNATURE "IntelGraphicsMem" 51 #define MBOX_ACPI (1<<0) 52 #define MBOX_SWSCI (1<<1) 53 #define MBOX_ASLE (1<<2) 54 #define MBOX_ASLE_EXT (1<<4) 55 56 struct opregion_header { 57 u8 signature[16]; 58 u32 size; 59 struct { 60 u8 rsvd; 61 u8 revision; 62 u8 minor; 63 u8 major; 64 } __packed over; 65 u8 bios_ver[32]; 66 u8 vbios_ver[16]; 67 u8 driver_ver[16]; 68 u32 mboxes; 69 u32 driver_model; 70 u32 pcon; 71 u8 dver[32]; 72 u8 rsvd[124]; 73 } __packed; 74 75 /* OpRegion mailbox #1: public ACPI methods */ 76 struct opregion_acpi { 77 u32 drdy; /* driver readiness */ 78 u32 csts; /* notification status */ 79 u32 cevt; /* current event */ 80 u8 rsvd1[20]; 81 u32 didl[8]; /* supported display devices ID list */ 82 u32 cpdl[8]; /* currently presented display list */ 83 u32 cadl[8]; /* currently active display list */ 84 u32 nadl[8]; /* next active devices list */ 85 u32 aslp; /* ASL sleep time-out */ 86 u32 tidx; /* toggle table index */ 87 u32 chpd; /* current hotplug enable indicator */ 88 u32 clid; /* current lid state*/ 89 u32 cdck; /* current docking state */ 90 u32 sxsw; /* Sx state resume */ 91 u32 evts; /* ASL supported events */ 92 u32 cnot; /* current OS notification */ 93 u32 nrdy; /* driver status */ 94 u32 did2[7]; /* extended supported display devices ID list */ 95 u32 cpd2[7]; /* extended attached display devices list */ 96 u8 rsvd2[4]; 97 } __packed; 98 99 /* OpRegion mailbox #2: SWSCI */ 100 struct opregion_swsci { 101 u32 scic; /* SWSCI command|status|data */ 102 u32 parm; /* command parameters */ 103 u32 dslp; /* driver sleep time-out */ 104 u8 rsvd[244]; 105 } __packed; 106 107 /* OpRegion mailbox #3: ASLE */ 108 struct opregion_asle { 109 u32 ardy; /* driver readiness */ 110 u32 aslc; /* ASLE interrupt command */ 111 u32 tche; /* technology enabled indicator */ 112 u32 alsi; /* current ALS illuminance reading */ 113 u32 bclp; /* backlight brightness to set */ 114 u32 pfit; /* panel fitting state */ 115 u32 cblv; /* current brightness level */ 116 u16 bclm[20]; /* backlight level duty cycle mapping table */ 117 u32 cpfm; /* current panel fitting mode */ 118 u32 epfm; /* enabled panel fitting modes */ 119 u8 plut[74]; /* panel LUT and identifier */ 120 u32 pfmb; /* PWM freq and min brightness */ 121 u32 cddv; /* color correction default values */ 122 u32 pcft; /* power conservation features */ 123 u32 srot; /* supported rotation angles */ 124 u32 iuer; /* IUER events */ 125 u64 fdss; 126 u32 fdsp; 127 u32 stat; 128 u64 rvda; /* Physical (2.0) or relative from opregion (2.1+) 129 * address of raw VBT data. */ 130 u32 rvds; /* Size of raw vbt data */ 131 u8 rsvd[58]; 132 } __packed; 133 134 /* OpRegion mailbox #5: ASLE ext */ 135 struct opregion_asle_ext { 136 u32 phed; /* Panel Header */ 137 u8 bddc[256]; /* Panel EDID */ 138 u8 rsvd[764]; 139 } __packed; 140 141 /* Driver readiness indicator */ 142 #define ASLE_ARDY_READY (1 << 0) 143 #define ASLE_ARDY_NOT_READY (0 << 0) 144 145 /* ASLE Interrupt Command (ASLC) bits */ 146 #define ASLC_SET_ALS_ILLUM (1 << 0) 147 #define ASLC_SET_BACKLIGHT (1 << 1) 148 #define ASLC_SET_PFIT (1 << 2) 149 #define ASLC_SET_PWM_FREQ (1 << 3) 150 #define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4) 151 #define ASLC_BUTTON_ARRAY (1 << 5) 152 #define ASLC_CONVERTIBLE_INDICATOR (1 << 6) 153 #define ASLC_DOCKING_INDICATOR (1 << 7) 154 #define ASLC_ISCT_STATE_CHANGE (1 << 8) 155 #define ASLC_REQ_MSK 0x1ff 156 /* response bits */ 157 #define ASLC_ALS_ILLUM_FAILED (1 << 10) 158 #define ASLC_BACKLIGHT_FAILED (1 << 12) 159 #define ASLC_PFIT_FAILED (1 << 14) 160 #define ASLC_PWM_FREQ_FAILED (1 << 16) 161 #define ASLC_ROTATION_ANGLES_FAILED (1 << 18) 162 #define ASLC_BUTTON_ARRAY_FAILED (1 << 20) 163 #define ASLC_CONVERTIBLE_FAILED (1 << 22) 164 #define ASLC_DOCKING_FAILED (1 << 24) 165 #define ASLC_ISCT_STATE_FAILED (1 << 26) 166 167 /* Technology enabled indicator */ 168 #define ASLE_TCHE_ALS_EN (1 << 0) 169 #define ASLE_TCHE_BLC_EN (1 << 1) 170 #define ASLE_TCHE_PFIT_EN (1 << 2) 171 #define ASLE_TCHE_PFMB_EN (1 << 3) 172 173 /* ASLE backlight brightness to set */ 174 #define ASLE_BCLP_VALID (1<<31) 175 #define ASLE_BCLP_MSK (~(1<<31)) 176 177 /* ASLE panel fitting request */ 178 #define ASLE_PFIT_VALID (1<<31) 179 #define ASLE_PFIT_CENTER (1<<0) 180 #define ASLE_PFIT_STRETCH_TEXT (1<<1) 181 #define ASLE_PFIT_STRETCH_GFX (1<<2) 182 183 /* PWM frequency and minimum brightness */ 184 #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) 185 #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) 186 #define ASLE_PFMB_PWM_MASK (0x7ffffe00) 187 #define ASLE_PFMB_PWM_VALID (1<<31) 188 189 #define ASLE_CBLV_VALID (1<<31) 190 191 /* IUER */ 192 #define ASLE_IUER_DOCKING (1 << 7) 193 #define ASLE_IUER_CONVERTIBLE (1 << 6) 194 #define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4) 195 #define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3) 196 #define ASLE_IUER_VOLUME_UP_BTN (1 << 2) 197 #define ASLE_IUER_WINDOWS_BTN (1 << 1) 198 #define ASLE_IUER_POWER_BTN (1 << 0) 199 200 /* Software System Control Interrupt (SWSCI) */ 201 #define SWSCI_SCIC_INDICATOR (1 << 0) 202 #define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1 203 #define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1) 204 #define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8 205 #define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8) 206 #define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8 207 #define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8) 208 #define SWSCI_SCIC_EXIT_STATUS_SHIFT 5 209 #define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5) 210 #define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1 211 212 #define SWSCI_FUNCTION_CODE(main, sub) \ 213 ((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \ 214 (sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT) 215 216 /* SWSCI: Get BIOS Data (GBDA) */ 217 #define SWSCI_GBDA 4 218 #define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0) 219 #define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1) 220 #define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4) 221 #define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5) 222 #define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6) 223 #define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7) 224 #define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10) 225 226 /* SWSCI: System BIOS Callbacks (SBCB) */ 227 #define SWSCI_SBCB 6 228 #define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0) 229 #define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1) 230 #define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3) 231 #define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4) 232 #define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5) 233 #define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6) 234 #define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7) 235 #define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8) 236 #define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9) 237 #define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10) 238 #define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11) 239 #define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16) 240 #define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17) 241 #define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18) 242 #define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19) 243 #define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21) 244 245 /* 246 * ACPI Specification, Revision 5.0, Appendix B.3.2 _DOD (Enumerate All Devices 247 * Attached to the Display Adapter). 248 */ 249 #define ACPI_DISPLAY_INDEX_SHIFT 0 250 #define ACPI_DISPLAY_INDEX_MASK (0xf << 0) 251 #define ACPI_DISPLAY_PORT_ATTACHMENT_SHIFT 4 252 #define ACPI_DISPLAY_PORT_ATTACHMENT_MASK (0xf << 4) 253 #define ACPI_DISPLAY_TYPE_SHIFT 8 254 #define ACPI_DISPLAY_TYPE_MASK (0xf << 8) 255 #define ACPI_DISPLAY_TYPE_OTHER (0 << 8) 256 #define ACPI_DISPLAY_TYPE_VGA (1 << 8) 257 #define ACPI_DISPLAY_TYPE_TV (2 << 8) 258 #define ACPI_DISPLAY_TYPE_EXTERNAL_DIGITAL (3 << 8) 259 #define ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL (4 << 8) 260 #define ACPI_VENDOR_SPECIFIC_SHIFT 12 261 #define ACPI_VENDOR_SPECIFIC_MASK (0xf << 12) 262 #define ACPI_BIOS_CAN_DETECT (1 << 16) 263 #define ACPI_DEPENDS_ON_VGA (1 << 17) 264 #define ACPI_PIPE_ID_SHIFT 18 265 #define ACPI_PIPE_ID_MASK (7 << 18) 266 #define ACPI_DEVICE_ID_SCHEME (1 << 31) 267 268 #define MAX_DSLP 1500 269 270 static int swsci(struct drm_i915_private *dev_priv, 271 u32 function, u32 parm, u32 *parm_out) 272 { 273 struct opregion_swsci *swsci = dev_priv->opregion.swsci; 274 struct pci_dev *pdev = dev_priv->drm.pdev; 275 u32 main_function, sub_function, scic; 276 u16 swsci_val; 277 u32 dslp; 278 279 if (!swsci) 280 return -ENODEV; 281 282 main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >> 283 SWSCI_SCIC_MAIN_FUNCTION_SHIFT; 284 sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >> 285 SWSCI_SCIC_SUB_FUNCTION_SHIFT; 286 287 /* Check if we can call the function. See swsci_setup for details. */ 288 if (main_function == SWSCI_SBCB) { 289 if ((dev_priv->opregion.swsci_sbcb_sub_functions & 290 (1 << sub_function)) == 0) 291 return -EINVAL; 292 } else if (main_function == SWSCI_GBDA) { 293 if ((dev_priv->opregion.swsci_gbda_sub_functions & 294 (1 << sub_function)) == 0) 295 return -EINVAL; 296 } 297 298 /* Driver sleep timeout in ms. */ 299 dslp = swsci->dslp; 300 if (!dslp) { 301 /* The spec says 2ms should be the default, but it's too small 302 * for some machines. */ 303 dslp = 50; 304 } else if (dslp > MAX_DSLP) { 305 /* Hey bios, trust must be earned. */ 306 DRM_INFO_ONCE("ACPI BIOS requests an excessive sleep of %u ms, " 307 "using %u ms instead\n", dslp, MAX_DSLP); 308 dslp = MAX_DSLP; 309 } 310 311 /* The spec tells us to do this, but we are the only user... */ 312 scic = swsci->scic; 313 if (scic & SWSCI_SCIC_INDICATOR) { 314 DRM_DEBUG_DRIVER("SWSCI request already in progress\n"); 315 return -EBUSY; 316 } 317 318 scic = function | SWSCI_SCIC_INDICATOR; 319 320 swsci->parm = parm; 321 swsci->scic = scic; 322 323 /* Ensure SCI event is selected and event trigger is cleared. */ 324 pci_read_config_word(pdev, SWSCI, &swsci_val); 325 if (!(swsci_val & SWSCI_SCISEL) || (swsci_val & SWSCI_GSSCIE)) { 326 swsci_val |= SWSCI_SCISEL; 327 swsci_val &= ~SWSCI_GSSCIE; 328 pci_write_config_word(pdev, SWSCI, swsci_val); 329 } 330 331 /* Use event trigger to tell bios to check the mail. */ 332 swsci_val |= SWSCI_GSSCIE; 333 pci_write_config_word(pdev, SWSCI, swsci_val); 334 335 /* Poll for the result. */ 336 #define C (((scic = swsci->scic) & SWSCI_SCIC_INDICATOR) == 0) 337 if (wait_for(C, dslp)) { 338 DRM_DEBUG_DRIVER("SWSCI request timed out\n"); 339 return -ETIMEDOUT; 340 } 341 342 scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >> 343 SWSCI_SCIC_EXIT_STATUS_SHIFT; 344 345 /* Note: scic == 0 is an error! */ 346 if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) { 347 DRM_DEBUG_DRIVER("SWSCI request error %u\n", scic); 348 return -EIO; 349 } 350 351 if (parm_out) 352 *parm_out = swsci->parm; 353 354 return 0; 355 356 #undef C 357 } 358 359 #define DISPLAY_TYPE_CRT 0 360 #define DISPLAY_TYPE_TV 1 361 #define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2 362 #define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3 363 364 int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, 365 bool enable) 366 { 367 struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev); 368 u32 parm = 0; 369 u32 type = 0; 370 u32 port; 371 372 /* don't care about old stuff for now */ 373 if (!HAS_DDI(dev_priv)) 374 return 0; 375 376 if (intel_encoder->type == INTEL_OUTPUT_DSI) 377 port = 0; 378 else 379 port = intel_encoder->port; 380 381 if (port == PORT_E) { 382 port = 0; 383 } else { 384 parm |= 1 << port; 385 port++; 386 } 387 388 if (!enable) 389 parm |= 4 << 8; 390 391 switch (intel_encoder->type) { 392 case INTEL_OUTPUT_ANALOG: 393 type = DISPLAY_TYPE_CRT; 394 break; 395 case INTEL_OUTPUT_DDI: 396 case INTEL_OUTPUT_DP: 397 case INTEL_OUTPUT_HDMI: 398 case INTEL_OUTPUT_DP_MST: 399 type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL; 400 break; 401 case INTEL_OUTPUT_EDP: 402 case INTEL_OUTPUT_DSI: 403 type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL; 404 break; 405 default: 406 WARN_ONCE(1, "unsupported intel_encoder type %d\n", 407 intel_encoder->type); 408 return -EINVAL; 409 } 410 411 parm |= type << (16 + port * 3); 412 413 return swsci(dev_priv, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL); 414 } 415 416 static const struct { 417 pci_power_t pci_power_state; 418 u32 parm; 419 } power_state_map[] = { 420 { PCI_D0, 0x00 }, 421 { PCI_D1, 0x01 }, 422 { PCI_D2, 0x02 }, 423 { PCI_D3hot, 0x04 }, 424 { PCI_D3cold, 0x04 }, 425 }; 426 427 int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv, 428 pci_power_t state) 429 { 430 int i; 431 432 if (!HAS_DDI(dev_priv)) 433 return 0; 434 435 for (i = 0; i < ARRAY_SIZE(power_state_map); i++) { 436 if (state == power_state_map[i].pci_power_state) 437 return swsci(dev_priv, SWSCI_SBCB_ADAPTER_POWER_STATE, 438 power_state_map[i].parm, NULL); 439 } 440 441 return -EINVAL; 442 } 443 444 static u32 asle_set_backlight(struct drm_i915_private *dev_priv, u32 bclp) 445 { 446 struct intel_connector *connector; 447 struct drm_connector_list_iter conn_iter; 448 struct opregion_asle *asle = dev_priv->opregion.asle; 449 struct drm_device *dev = &dev_priv->drm; 450 451 DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); 452 453 if (acpi_video_get_backlight_type() == acpi_backlight_native) { 454 DRM_DEBUG_KMS("opregion backlight request ignored\n"); 455 return 0; 456 } 457 458 if (!(bclp & ASLE_BCLP_VALID)) 459 return ASLC_BACKLIGHT_FAILED; 460 461 bclp &= ASLE_BCLP_MSK; 462 if (bclp > 255) 463 return ASLC_BACKLIGHT_FAILED; 464 465 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 466 467 /* 468 * Update backlight on all connectors that support backlight (usually 469 * only one). 470 */ 471 DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp); 472 drm_connector_list_iter_begin(dev, &conn_iter); 473 for_each_intel_connector_iter(connector, &conn_iter) 474 intel_panel_set_backlight_acpi(connector->base.state, bclp, 255); 475 drm_connector_list_iter_end(&conn_iter); 476 asle->cblv = DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID; 477 478 drm_modeset_unlock(&dev->mode_config.connection_mutex); 479 480 481 return 0; 482 } 483 484 static u32 asle_set_als_illum(struct drm_i915_private *dev_priv, u32 alsi) 485 { 486 /* alsi is the current ALS reading in lux. 0 indicates below sensor 487 range, 0xffff indicates above sensor range. 1-0xfffe are valid */ 488 DRM_DEBUG_DRIVER("Illum is not supported\n"); 489 return ASLC_ALS_ILLUM_FAILED; 490 } 491 492 static u32 asle_set_pwm_freq(struct drm_i915_private *dev_priv, u32 pfmb) 493 { 494 DRM_DEBUG_DRIVER("PWM freq is not supported\n"); 495 return ASLC_PWM_FREQ_FAILED; 496 } 497 498 static u32 asle_set_pfit(struct drm_i915_private *dev_priv, u32 pfit) 499 { 500 /* Panel fitting is currently controlled by the X code, so this is a 501 noop until modesetting support works fully */ 502 DRM_DEBUG_DRIVER("Pfit is not supported\n"); 503 return ASLC_PFIT_FAILED; 504 } 505 506 static u32 asle_set_supported_rotation_angles(struct drm_i915_private *dev_priv, u32 srot) 507 { 508 DRM_DEBUG_DRIVER("SROT is not supported\n"); 509 return ASLC_ROTATION_ANGLES_FAILED; 510 } 511 512 static u32 asle_set_button_array(struct drm_i915_private *dev_priv, u32 iuer) 513 { 514 if (!iuer) 515 DRM_DEBUG_DRIVER("Button array event is not supported (nothing)\n"); 516 if (iuer & ASLE_IUER_ROTATION_LOCK_BTN) 517 DRM_DEBUG_DRIVER("Button array event is not supported (rotation lock)\n"); 518 if (iuer & ASLE_IUER_VOLUME_DOWN_BTN) 519 DRM_DEBUG_DRIVER("Button array event is not supported (volume down)\n"); 520 if (iuer & ASLE_IUER_VOLUME_UP_BTN) 521 DRM_DEBUG_DRIVER("Button array event is not supported (volume up)\n"); 522 if (iuer & ASLE_IUER_WINDOWS_BTN) 523 DRM_DEBUG_DRIVER("Button array event is not supported (windows)\n"); 524 if (iuer & ASLE_IUER_POWER_BTN) 525 DRM_DEBUG_DRIVER("Button array event is not supported (power)\n"); 526 527 return ASLC_BUTTON_ARRAY_FAILED; 528 } 529 530 static u32 asle_set_convertible(struct drm_i915_private *dev_priv, u32 iuer) 531 { 532 if (iuer & ASLE_IUER_CONVERTIBLE) 533 DRM_DEBUG_DRIVER("Convertible is not supported (clamshell)\n"); 534 else 535 DRM_DEBUG_DRIVER("Convertible is not supported (slate)\n"); 536 537 return ASLC_CONVERTIBLE_FAILED; 538 } 539 540 static u32 asle_set_docking(struct drm_i915_private *dev_priv, u32 iuer) 541 { 542 if (iuer & ASLE_IUER_DOCKING) 543 DRM_DEBUG_DRIVER("Docking is not supported (docked)\n"); 544 else 545 DRM_DEBUG_DRIVER("Docking is not supported (undocked)\n"); 546 547 return ASLC_DOCKING_FAILED; 548 } 549 550 static u32 asle_isct_state(struct drm_i915_private *dev_priv) 551 { 552 DRM_DEBUG_DRIVER("ISCT is not supported\n"); 553 return ASLC_ISCT_STATE_FAILED; 554 } 555 556 static void asle_work(struct work_struct *work) 557 { 558 struct intel_opregion *opregion = 559 container_of(work, struct intel_opregion, asle_work); 560 struct drm_i915_private *dev_priv = 561 container_of(opregion, struct drm_i915_private, opregion); 562 struct opregion_asle *asle = dev_priv->opregion.asle; 563 u32 aslc_stat = 0; 564 u32 aslc_req; 565 566 if (!asle) 567 return; 568 569 aslc_req = asle->aslc; 570 571 if (!(aslc_req & ASLC_REQ_MSK)) { 572 DRM_DEBUG_DRIVER("No request on ASLC interrupt 0x%08x\n", 573 aslc_req); 574 return; 575 } 576 577 if (aslc_req & ASLC_SET_ALS_ILLUM) 578 aslc_stat |= asle_set_als_illum(dev_priv, asle->alsi); 579 580 if (aslc_req & ASLC_SET_BACKLIGHT) 581 aslc_stat |= asle_set_backlight(dev_priv, asle->bclp); 582 583 if (aslc_req & ASLC_SET_PFIT) 584 aslc_stat |= asle_set_pfit(dev_priv, asle->pfit); 585 586 if (aslc_req & ASLC_SET_PWM_FREQ) 587 aslc_stat |= asle_set_pwm_freq(dev_priv, asle->pfmb); 588 589 if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES) 590 aslc_stat |= asle_set_supported_rotation_angles(dev_priv, 591 asle->srot); 592 593 if (aslc_req & ASLC_BUTTON_ARRAY) 594 aslc_stat |= asle_set_button_array(dev_priv, asle->iuer); 595 596 if (aslc_req & ASLC_CONVERTIBLE_INDICATOR) 597 aslc_stat |= asle_set_convertible(dev_priv, asle->iuer); 598 599 if (aslc_req & ASLC_DOCKING_INDICATOR) 600 aslc_stat |= asle_set_docking(dev_priv, asle->iuer); 601 602 if (aslc_req & ASLC_ISCT_STATE_CHANGE) 603 aslc_stat |= asle_isct_state(dev_priv); 604 605 asle->aslc = aslc_stat; 606 } 607 608 void intel_opregion_asle_intr(struct drm_i915_private *dev_priv) 609 { 610 if (dev_priv->opregion.asle) 611 schedule_work(&dev_priv->opregion.asle_work); 612 } 613 614 #define ACPI_EV_DISPLAY_SWITCH (1<<0) 615 #define ACPI_EV_LID (1<<1) 616 #define ACPI_EV_DOCK (1<<2) 617 618 /* 619 * The only video events relevant to opregion are 0x80. These indicate either a 620 * docking event, lid switch or display switch request. In Linux, these are 621 * handled by the dock, button and video drivers. 622 */ 623 static int intel_opregion_video_event(struct notifier_block *nb, 624 unsigned long val, void *data) 625 { 626 struct intel_opregion *opregion = container_of(nb, struct intel_opregion, 627 acpi_notifier); 628 struct acpi_bus_event *event = data; 629 struct opregion_acpi *acpi; 630 int ret = NOTIFY_OK; 631 632 if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) 633 return NOTIFY_DONE; 634 635 acpi = opregion->acpi; 636 637 if (event->type == 0x80 && ((acpi->cevt & 1) == 0)) 638 ret = NOTIFY_BAD; 639 640 acpi->csts = 0; 641 642 return ret; 643 } 644 645 /* 646 * Initialise the DIDL field in opregion. This passes a list of devices to 647 * the firmware. Values are defined by section B.4.2 of the ACPI specification 648 * (version 3) 649 */ 650 651 static void set_did(struct intel_opregion *opregion, int i, u32 val) 652 { 653 if (i < ARRAY_SIZE(opregion->acpi->didl)) { 654 opregion->acpi->didl[i] = val; 655 } else { 656 i -= ARRAY_SIZE(opregion->acpi->didl); 657 658 if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) 659 return; 660 661 opregion->acpi->did2[i] = val; 662 } 663 } 664 665 static u32 acpi_display_type(struct intel_connector *connector) 666 { 667 u32 display_type; 668 669 switch (connector->base.connector_type) { 670 case DRM_MODE_CONNECTOR_VGA: 671 case DRM_MODE_CONNECTOR_DVIA: 672 display_type = ACPI_DISPLAY_TYPE_VGA; 673 break; 674 case DRM_MODE_CONNECTOR_Composite: 675 case DRM_MODE_CONNECTOR_SVIDEO: 676 case DRM_MODE_CONNECTOR_Component: 677 case DRM_MODE_CONNECTOR_9PinDIN: 678 case DRM_MODE_CONNECTOR_TV: 679 display_type = ACPI_DISPLAY_TYPE_TV; 680 break; 681 case DRM_MODE_CONNECTOR_DVII: 682 case DRM_MODE_CONNECTOR_DVID: 683 case DRM_MODE_CONNECTOR_DisplayPort: 684 case DRM_MODE_CONNECTOR_HDMIA: 685 case DRM_MODE_CONNECTOR_HDMIB: 686 display_type = ACPI_DISPLAY_TYPE_EXTERNAL_DIGITAL; 687 break; 688 case DRM_MODE_CONNECTOR_LVDS: 689 case DRM_MODE_CONNECTOR_eDP: 690 case DRM_MODE_CONNECTOR_DSI: 691 display_type = ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL; 692 break; 693 case DRM_MODE_CONNECTOR_Unknown: 694 case DRM_MODE_CONNECTOR_VIRTUAL: 695 display_type = ACPI_DISPLAY_TYPE_OTHER; 696 break; 697 default: 698 MISSING_CASE(connector->base.connector_type); 699 display_type = ACPI_DISPLAY_TYPE_OTHER; 700 break; 701 } 702 703 return display_type; 704 } 705 706 static void intel_didl_outputs(struct drm_i915_private *dev_priv) 707 { 708 struct intel_opregion *opregion = &dev_priv->opregion; 709 struct intel_connector *connector; 710 struct drm_connector_list_iter conn_iter; 711 int i = 0, max_outputs; 712 int display_index[16] = {}; 713 714 /* 715 * In theory, did2, the extended didl, gets added at opregion version 716 * 3.0. In practice, however, we're supposed to set it for earlier 717 * versions as well, since a BIOS that doesn't understand did2 should 718 * not look at it anyway. Use a variable so we can tweak this if a need 719 * arises later. 720 */ 721 max_outputs = ARRAY_SIZE(opregion->acpi->didl) + 722 ARRAY_SIZE(opregion->acpi->did2); 723 724 drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); 725 for_each_intel_connector_iter(connector, &conn_iter) { 726 u32 device_id, type; 727 728 device_id = acpi_display_type(connector); 729 730 /* Use display type specific display index. */ 731 type = (device_id & ACPI_DISPLAY_TYPE_MASK) 732 >> ACPI_DISPLAY_TYPE_SHIFT; 733 device_id |= display_index[type]++ << ACPI_DISPLAY_INDEX_SHIFT; 734 735 connector->acpi_device_id = device_id; 736 if (i < max_outputs) 737 set_did(opregion, i, device_id); 738 i++; 739 } 740 drm_connector_list_iter_end(&conn_iter); 741 742 DRM_DEBUG_KMS("%d outputs detected\n", i); 743 744 if (i > max_outputs) 745 DRM_ERROR("More than %d outputs in connector list\n", 746 max_outputs); 747 748 /* If fewer than max outputs, the list must be null terminated */ 749 if (i < max_outputs) 750 set_did(opregion, i, 0); 751 } 752 753 static void intel_setup_cadls(struct drm_i915_private *dev_priv) 754 { 755 struct intel_opregion *opregion = &dev_priv->opregion; 756 struct intel_connector *connector; 757 struct drm_connector_list_iter conn_iter; 758 int i = 0; 759 760 /* 761 * Initialize the CADL field from the connector device ids. This is 762 * essentially the same as copying from the DIDL. Technically, this is 763 * not always correct as display outputs may exist, but not active. This 764 * initialization is necessary for some Clevo laptops that check this 765 * field before processing the brightness and display switching hotkeys. 766 * 767 * Note that internal panels should be at the front of the connector 768 * list already, ensuring they're not left out. 769 */ 770 drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); 771 for_each_intel_connector_iter(connector, &conn_iter) { 772 if (i >= ARRAY_SIZE(opregion->acpi->cadl)) 773 break; 774 opregion->acpi->cadl[i++] = connector->acpi_device_id; 775 } 776 drm_connector_list_iter_end(&conn_iter); 777 778 /* If fewer than 8 active devices, the list must be null terminated */ 779 if (i < ARRAY_SIZE(opregion->acpi->cadl)) 780 opregion->acpi->cadl[i] = 0; 781 } 782 783 static void swsci_setup(struct drm_i915_private *dev_priv) 784 { 785 struct intel_opregion *opregion = &dev_priv->opregion; 786 bool requested_callbacks = false; 787 u32 tmp; 788 789 /* Sub-function code 0 is okay, let's allow them. */ 790 opregion->swsci_gbda_sub_functions = 1; 791 opregion->swsci_sbcb_sub_functions = 1; 792 793 /* We use GBDA to ask for supported GBDA calls. */ 794 if (swsci(dev_priv, SWSCI_GBDA_SUPPORTED_CALLS, 0, &tmp) == 0) { 795 /* make the bits match the sub-function codes */ 796 tmp <<= 1; 797 opregion->swsci_gbda_sub_functions |= tmp; 798 } 799 800 /* 801 * We also use GBDA to ask for _requested_ SBCB callbacks. The driver 802 * must not call interfaces that are not specifically requested by the 803 * bios. 804 */ 805 if (swsci(dev_priv, SWSCI_GBDA_REQUESTED_CALLBACKS, 0, &tmp) == 0) { 806 /* here, the bits already match sub-function codes */ 807 opregion->swsci_sbcb_sub_functions |= tmp; 808 requested_callbacks = true; 809 } 810 811 /* 812 * But we use SBCB to ask for _supported_ SBCB calls. This does not mean 813 * the callback is _requested_. But we still can't call interfaces that 814 * are not requested. 815 */ 816 if (swsci(dev_priv, SWSCI_SBCB_SUPPORTED_CALLBACKS, 0, &tmp) == 0) { 817 /* make the bits match the sub-function codes */ 818 u32 low = tmp & 0x7ff; 819 u32 high = tmp & ~0xfff; /* bit 11 is reserved */ 820 tmp = (high << 4) | (low << 1) | 1; 821 822 /* best guess what to do with supported wrt requested */ 823 if (requested_callbacks) { 824 u32 req = opregion->swsci_sbcb_sub_functions; 825 if ((req & tmp) != req) 826 DRM_DEBUG_DRIVER("SWSCI BIOS requested (%08x) SBCB callbacks that are not supported (%08x)\n", req, tmp); 827 /* XXX: for now, trust the requested callbacks */ 828 /* opregion->swsci_sbcb_sub_functions &= tmp; */ 829 } else { 830 opregion->swsci_sbcb_sub_functions |= tmp; 831 } 832 } 833 834 DRM_DEBUG_DRIVER("SWSCI GBDA callbacks %08x, SBCB callbacks %08x\n", 835 opregion->swsci_gbda_sub_functions, 836 opregion->swsci_sbcb_sub_functions); 837 } 838 839 static int intel_no_opregion_vbt_callback(const struct dmi_system_id *id) 840 { 841 DRM_DEBUG_KMS("Falling back to manually reading VBT from " 842 "VBIOS ROM for %s\n", id->ident); 843 return 1; 844 } 845 846 static const struct dmi_system_id intel_no_opregion_vbt[] = { 847 { 848 .callback = intel_no_opregion_vbt_callback, 849 .ident = "ThinkCentre A57", 850 .matches = { 851 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 852 DMI_MATCH(DMI_PRODUCT_NAME, "97027RG"), 853 }, 854 }, 855 { } 856 }; 857 858 static int intel_load_vbt_firmware(struct drm_i915_private *dev_priv) 859 { 860 struct intel_opregion *opregion = &dev_priv->opregion; 861 const struct firmware *fw = NULL; 862 const char *name = i915_modparams.vbt_firmware; 863 int ret; 864 865 if (!name || !*name) 866 return -ENOENT; 867 868 ret = request_firmware(&fw, name, &dev_priv->drm.pdev->dev); 869 if (ret) { 870 DRM_ERROR("Requesting VBT firmware \"%s\" failed (%d)\n", 871 name, ret); 872 return ret; 873 } 874 875 if (intel_bios_is_valid_vbt(fw->data, fw->size)) { 876 opregion->vbt_firmware = kmemdup(fw->data, fw->size, GFP_KERNEL); 877 if (opregion->vbt_firmware) { 878 DRM_DEBUG_KMS("Found valid VBT firmware \"%s\"\n", name); 879 opregion->vbt = opregion->vbt_firmware; 880 opregion->vbt_size = fw->size; 881 ret = 0; 882 } else { 883 ret = -ENOMEM; 884 } 885 } else { 886 DRM_DEBUG_KMS("Invalid VBT firmware \"%s\"\n", name); 887 ret = -EINVAL; 888 } 889 890 release_firmware(fw); 891 892 return ret; 893 } 894 895 int intel_opregion_setup(struct drm_i915_private *dev_priv) 896 { 897 struct intel_opregion *opregion = &dev_priv->opregion; 898 struct pci_dev *pdev = dev_priv->drm.pdev; 899 u32 asls, mboxes; 900 char buf[sizeof(OPREGION_SIGNATURE)]; 901 int err = 0; 902 void *base; 903 const void *vbt; 904 u32 vbt_size; 905 906 BUILD_BUG_ON(sizeof(struct opregion_header) != 0x100); 907 BUILD_BUG_ON(sizeof(struct opregion_acpi) != 0x100); 908 BUILD_BUG_ON(sizeof(struct opregion_swsci) != 0x100); 909 BUILD_BUG_ON(sizeof(struct opregion_asle) != 0x100); 910 BUILD_BUG_ON(sizeof(struct opregion_asle_ext) != 0x400); 911 912 pci_read_config_dword(pdev, ASLS, &asls); 913 DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); 914 if (asls == 0) { 915 DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n"); 916 return -ENOTSUPP; 917 } 918 919 INIT_WORK(&opregion->asle_work, asle_work); 920 921 base = memremap(asls, OPREGION_SIZE, MEMREMAP_WB); 922 if (!base) 923 return -ENOMEM; 924 925 memcpy(buf, base, sizeof(buf)); 926 927 if (memcmp(buf, OPREGION_SIGNATURE, 16)) { 928 DRM_DEBUG_DRIVER("opregion signature mismatch\n"); 929 err = -EINVAL; 930 goto err_out; 931 } 932 opregion->header = base; 933 opregion->lid_state = base + ACPI_CLID; 934 935 DRM_DEBUG_DRIVER("ACPI OpRegion version %u.%u.%u\n", 936 opregion->header->over.major, 937 opregion->header->over.minor, 938 opregion->header->over.revision); 939 940 mboxes = opregion->header->mboxes; 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; 949 swsci_setup(dev_priv); 950 } 951 952 if (mboxes & MBOX_ASLE) { 953 DRM_DEBUG_DRIVER("ASLE supported\n"); 954 opregion->asle = base + OPREGION_ASLE_OFFSET; 955 956 opregion->asle->ardy = ASLE_ARDY_NOT_READY; 957 } 958 959 if (mboxes & MBOX_ASLE_EXT) 960 DRM_DEBUG_DRIVER("ASLE extension supported\n"); 961 962 if (intel_load_vbt_firmware(dev_priv) == 0) 963 goto out; 964 965 if (dmi_check_system(intel_no_opregion_vbt)) 966 goto out; 967 968 if (opregion->header->over.major >= 2 && opregion->asle && 969 opregion->asle->rvda && opregion->asle->rvds) { 970 resource_size_t rvda = opregion->asle->rvda; 971 972 /* 973 * opregion 2.0: rvda is the physical VBT address. 974 * 975 * opregion 2.1+: rvda is unsigned, relative offset from 976 * opregion base, and should never point within opregion. 977 */ 978 if (opregion->header->over.major > 2 || 979 opregion->header->over.minor >= 1) { 980 WARN_ON(rvda < OPREGION_SIZE); 981 982 rvda += asls; 983 } 984 985 opregion->rvda = memremap(rvda, opregion->asle->rvds, 986 MEMREMAP_WB); 987 988 vbt = opregion->rvda; 989 vbt_size = opregion->asle->rvds; 990 if (intel_bios_is_valid_vbt(vbt, vbt_size)) { 991 DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (RVDA)\n"); 992 opregion->vbt = vbt; 993 opregion->vbt_size = vbt_size; 994 goto out; 995 } else { 996 DRM_DEBUG_KMS("Invalid VBT in ACPI OpRegion (RVDA)\n"); 997 memunmap(opregion->rvda); 998 opregion->rvda = NULL; 999 } 1000 } 1001 1002 vbt = base + OPREGION_VBT_OFFSET; 1003 /* 1004 * The VBT specification says that if the ASLE ext mailbox is not used 1005 * its area is reserved, but on some CHT boards the VBT extends into the 1006 * ASLE ext area. Allow this even though it is against the spec, so we 1007 * do not end up rejecting the VBT on those boards (and end up not 1008 * finding the LCD panel because of this). 1009 */ 1010 vbt_size = (mboxes & MBOX_ASLE_EXT) ? 1011 OPREGION_ASLE_EXT_OFFSET : OPREGION_SIZE; 1012 vbt_size -= 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 } else { 1018 DRM_DEBUG_KMS("Invalid VBT in ACPI OpRegion (Mailbox #4)\n"); 1019 } 1020 1021 out: 1022 return 0; 1023 1024 err_out: 1025 memunmap(base); 1026 return err; 1027 } 1028 1029 static int intel_use_opregion_panel_type_callback(const struct dmi_system_id *id) 1030 { 1031 DRM_INFO("Using panel type from OpRegion on %s\n", id->ident); 1032 return 1; 1033 } 1034 1035 static const struct dmi_system_id intel_use_opregion_panel_type[] = { 1036 { 1037 .callback = intel_use_opregion_panel_type_callback, 1038 .ident = "Conrac GmbH IX45GM2", 1039 .matches = {DMI_MATCH(DMI_SYS_VENDOR, "Conrac GmbH"), 1040 DMI_MATCH(DMI_PRODUCT_NAME, "IX45GM2"), 1041 }, 1042 }, 1043 { } 1044 }; 1045 1046 int 1047 intel_opregion_get_panel_type(struct drm_i915_private *dev_priv) 1048 { 1049 u32 panel_details; 1050 int ret; 1051 1052 ret = swsci(dev_priv, SWSCI_GBDA_PANEL_DETAILS, 0x0, &panel_details); 1053 if (ret) { 1054 DRM_DEBUG_KMS("Failed to get panel details from OpRegion (%d)\n", 1055 ret); 1056 return ret; 1057 } 1058 1059 ret = (panel_details >> 8) & 0xff; 1060 if (ret > 0x10) { 1061 DRM_DEBUG_KMS("Invalid OpRegion panel type 0x%x\n", ret); 1062 return -EINVAL; 1063 } 1064 1065 /* fall back to VBT panel type? */ 1066 if (ret == 0x0) { 1067 DRM_DEBUG_KMS("No panel type in OpRegion\n"); 1068 return -ENODEV; 1069 } 1070 1071 /* 1072 * So far we know that some machined must use it, others must not use it. 1073 * There doesn't seem to be any way to determine which way to go, except 1074 * via a quirk list :( 1075 */ 1076 if (!dmi_check_system(intel_use_opregion_panel_type)) { 1077 DRM_DEBUG_KMS("Ignoring OpRegion panel type (%d)\n", ret - 1); 1078 return -ENODEV; 1079 } 1080 1081 return ret - 1; 1082 } 1083 1084 void intel_opregion_register(struct drm_i915_private *i915) 1085 { 1086 struct intel_opregion *opregion = &i915->opregion; 1087 1088 if (!opregion->header) 1089 return; 1090 1091 if (opregion->acpi) { 1092 opregion->acpi_notifier.notifier_call = 1093 intel_opregion_video_event; 1094 register_acpi_notifier(&opregion->acpi_notifier); 1095 } 1096 1097 intel_opregion_resume(i915); 1098 } 1099 1100 void intel_opregion_resume(struct drm_i915_private *i915) 1101 { 1102 struct intel_opregion *opregion = &i915->opregion; 1103 1104 if (!opregion->header) 1105 return; 1106 1107 if (opregion->acpi) { 1108 intel_didl_outputs(i915); 1109 intel_setup_cadls(i915); 1110 1111 /* 1112 * Notify BIOS we are ready to handle ACPI video ext notifs. 1113 * Right now, all the events are handled by the ACPI video 1114 * module. We don't actually need to do anything with them. 1115 */ 1116 opregion->acpi->csts = 0; 1117 opregion->acpi->drdy = 1; 1118 } 1119 1120 if (opregion->asle) { 1121 opregion->asle->tche = ASLE_TCHE_BLC_EN; 1122 opregion->asle->ardy = ASLE_ARDY_READY; 1123 } 1124 1125 intel_opregion_notify_adapter(i915, PCI_D0); 1126 } 1127 1128 void intel_opregion_suspend(struct drm_i915_private *i915, pci_power_t state) 1129 { 1130 struct intel_opregion *opregion = &i915->opregion; 1131 1132 if (!opregion->header) 1133 return; 1134 1135 intel_opregion_notify_adapter(i915, state); 1136 1137 if (opregion->asle) 1138 opregion->asle->ardy = ASLE_ARDY_NOT_READY; 1139 1140 cancel_work_sync(&i915->opregion.asle_work); 1141 1142 if (opregion->acpi) 1143 opregion->acpi->drdy = 0; 1144 } 1145 1146 void intel_opregion_unregister(struct drm_i915_private *i915) 1147 { 1148 struct intel_opregion *opregion = &i915->opregion; 1149 1150 intel_opregion_suspend(i915, PCI_D1); 1151 1152 if (!opregion->header) 1153 return; 1154 1155 if (opregion->acpi_notifier.notifier_call) { 1156 unregister_acpi_notifier(&opregion->acpi_notifier); 1157 opregion->acpi_notifier.notifier_call = NULL; 1158 } 1159 1160 /* just clear all opregion memory pointers now */ 1161 memunmap(opregion->header); 1162 if (opregion->rvda) { 1163 memunmap(opregion->rvda); 1164 opregion->rvda = NULL; 1165 } 1166 if (opregion->vbt_firmware) { 1167 kfree(opregion->vbt_firmware); 1168 opregion->vbt_firmware = NULL; 1169 } 1170 opregion->header = NULL; 1171 opregion->acpi = NULL; 1172 opregion->swsci = NULL; 1173 opregion->asle = NULL; 1174 opregion->vbt = NULL; 1175 opregion->lid_state = NULL; 1176 } 1177