| 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 <acpi/video.h> |
| 31 | |
| 32 | #include <drm/drmP.h> |
| 33 | #include <drm/i915_drm.h> |
| 34 | #include "i915_drv.h" |
| 35 | #include "intel_drv.h" |
| 36 | |
| 37 | #define OPREGION_HEADER_OFFSET 0 |
| 38 | #define OPREGION_ACPI_OFFSET 0x100 |
| 39 | #define ACPI_CLID 0x01ac /* current lid state indicator */ |
| 40 | #define ACPI_CDCK 0x01b0 /* current docking state indicator */ |
| 41 | #define OPREGION_SWSCI_OFFSET 0x200 |
| 42 | #define OPREGION_ASLE_OFFSET 0x300 |
| 43 | #define OPREGION_VBT_OFFSET 0x400 |
| 44 | #define OPREGION_ASLE_EXT_OFFSET 0x1C00 |
| 45 | |
| 46 | #define OPREGION_SIGNATURE "IntelGraphicsMem" |
| 47 | #define MBOX_ACPI (1<<0) |
| 48 | #define MBOX_SWSCI (1<<1) |
| 49 | #define MBOX_ASLE (1<<2) |
| 50 | #define MBOX_ASLE_EXT (1<<4) |
| 51 | |
| 52 | struct opregion_header { |
| 53 | u8 signature[16]; |
| 54 | u32 size; |
| 55 | u32 opregion_ver; |
| 56 | u8 bios_ver[32]; |
| 57 | u8 vbios_ver[16]; |
| 58 | u8 driver_ver[16]; |
| 59 | u32 mboxes; |
| 60 | u32 driver_model; |
| 61 | u32 pcon; |
| 62 | u8 dver[32]; |
| 63 | u8 rsvd[124]; |
| 64 | } __packed; |
| 65 | |
| 66 | /* OpRegion mailbox #1: public ACPI methods */ |
| 67 | struct opregion_acpi { |
| 68 | u32 drdy; /* driver readiness */ |
| 69 | u32 csts; /* notification status */ |
| 70 | u32 cevt; /* current event */ |
| 71 | u8 rsvd1[20]; |
| 72 | u32 didl[8]; /* supported display devices ID list */ |
| 73 | u32 cpdl[8]; /* currently presented display list */ |
| 74 | u32 cadl[8]; /* currently active display list */ |
| 75 | u32 nadl[8]; /* next active devices list */ |
| 76 | u32 aslp; /* ASL sleep time-out */ |
| 77 | u32 tidx; /* toggle table index */ |
| 78 | u32 chpd; /* current hotplug enable indicator */ |
| 79 | u32 clid; /* current lid state*/ |
| 80 | u32 cdck; /* current docking state */ |
| 81 | u32 sxsw; /* Sx state resume */ |
| 82 | u32 evts; /* ASL supported events */ |
| 83 | u32 cnot; /* current OS notification */ |
| 84 | u32 nrdy; /* driver status */ |
| 85 | u32 did2[7]; /* extended supported display devices ID list */ |
| 86 | u32 cpd2[7]; /* extended attached display devices list */ |
| 87 | u8 rsvd2[4]; |
| 88 | } __packed; |
| 89 | |
| 90 | /* OpRegion mailbox #2: SWSCI */ |
| 91 | struct opregion_swsci { |
| 92 | u32 scic; /* SWSCI command|status|data */ |
| 93 | u32 parm; /* command parameters */ |
| 94 | u32 dslp; /* driver sleep time-out */ |
| 95 | u8 rsvd[244]; |
| 96 | } __packed; |
| 97 | |
| 98 | /* OpRegion mailbox #3: ASLE */ |
| 99 | struct opregion_asle { |
| 100 | u32 ardy; /* driver readiness */ |
| 101 | u32 aslc; /* ASLE interrupt command */ |
| 102 | u32 tche; /* technology enabled indicator */ |
| 103 | u32 alsi; /* current ALS illuminance reading */ |
| 104 | u32 bclp; /* backlight brightness to set */ |
| 105 | u32 pfit; /* panel fitting state */ |
| 106 | u32 cblv; /* current brightness level */ |
| 107 | u16 bclm[20]; /* backlight level duty cycle mapping table */ |
| 108 | u32 cpfm; /* current panel fitting mode */ |
| 109 | u32 epfm; /* enabled panel fitting modes */ |
| 110 | u8 plut[74]; /* panel LUT and identifier */ |
| 111 | u32 pfmb; /* PWM freq and min brightness */ |
| 112 | u32 cddv; /* color correction default values */ |
| 113 | u32 pcft; /* power conservation features */ |
| 114 | u32 srot; /* supported rotation angles */ |
| 115 | u32 iuer; /* IUER events */ |
| 116 | u64 fdss; |
| 117 | u32 fdsp; |
| 118 | u32 stat; |
| 119 | u64 rvda; /* Physical address of raw vbt data */ |
| 120 | u32 rvds; /* Size of raw vbt data */ |
| 121 | u8 rsvd[58]; |
| 122 | } __packed; |
| 123 | |
| 124 | /* OpRegion mailbox #5: ASLE ext */ |
| 125 | struct opregion_asle_ext { |
| 126 | u32 phed; /* Panel Header */ |
| 127 | u8 bddc[256]; /* Panel EDID */ |
| 128 | u8 rsvd[764]; |
| 129 | } __packed; |
| 130 | |
| 131 | /* Driver readiness indicator */ |
| 132 | #define ASLE_ARDY_READY (1 << 0) |
| 133 | #define ASLE_ARDY_NOT_READY (0 << 0) |
| 134 | |
| 135 | /* ASLE Interrupt Command (ASLC) bits */ |
| 136 | #define ASLC_SET_ALS_ILLUM (1 << 0) |
| 137 | #define ASLC_SET_BACKLIGHT (1 << 1) |
| 138 | #define ASLC_SET_PFIT (1 << 2) |
| 139 | #define ASLC_SET_PWM_FREQ (1 << 3) |
| 140 | #define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4) |
| 141 | #define ASLC_BUTTON_ARRAY (1 << 5) |
| 142 | #define ASLC_CONVERTIBLE_INDICATOR (1 << 6) |
| 143 | #define ASLC_DOCKING_INDICATOR (1 << 7) |
| 144 | #define ASLC_ISCT_STATE_CHANGE (1 << 8) |
| 145 | #define ASLC_REQ_MSK 0x1ff |
| 146 | /* response bits */ |
| 147 | #define ASLC_ALS_ILLUM_FAILED (1 << 10) |
| 148 | #define ASLC_BACKLIGHT_FAILED (1 << 12) |
| 149 | #define ASLC_PFIT_FAILED (1 << 14) |
| 150 | #define ASLC_PWM_FREQ_FAILED (1 << 16) |
| 151 | #define ASLC_ROTATION_ANGLES_FAILED (1 << 18) |
| 152 | #define ASLC_BUTTON_ARRAY_FAILED (1 << 20) |
| 153 | #define ASLC_CONVERTIBLE_FAILED (1 << 22) |
| 154 | #define ASLC_DOCKING_FAILED (1 << 24) |
| 155 | #define ASLC_ISCT_STATE_FAILED (1 << 26) |
| 156 | |
| 157 | /* Technology enabled indicator */ |
| 158 | #define ASLE_TCHE_ALS_EN (1 << 0) |
| 159 | #define ASLE_TCHE_BLC_EN (1 << 1) |
| 160 | #define ASLE_TCHE_PFIT_EN (1 << 2) |
| 161 | #define ASLE_TCHE_PFMB_EN (1 << 3) |
| 162 | |
| 163 | /* ASLE backlight brightness to set */ |
| 164 | #define ASLE_BCLP_VALID (1<<31) |
| 165 | #define ASLE_BCLP_MSK (~(1<<31)) |
| 166 | |
| 167 | /* ASLE panel fitting request */ |
| 168 | #define ASLE_PFIT_VALID (1<<31) |
| 169 | #define ASLE_PFIT_CENTER (1<<0) |
| 170 | #define ASLE_PFIT_STRETCH_TEXT (1<<1) |
| 171 | #define ASLE_PFIT_STRETCH_GFX (1<<2) |
| 172 | |
| 173 | /* PWM frequency and minimum brightness */ |
| 174 | #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) |
| 175 | #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) |
| 176 | #define ASLE_PFMB_PWM_MASK (0x7ffffe00) |
| 177 | #define ASLE_PFMB_PWM_VALID (1<<31) |
| 178 | |
| 179 | #define ASLE_CBLV_VALID (1<<31) |
| 180 | |
| 181 | /* IUER */ |
| 182 | #define ASLE_IUER_DOCKING (1 << 7) |
| 183 | #define ASLE_IUER_CONVERTIBLE (1 << 6) |
| 184 | #define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4) |
| 185 | #define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3) |
| 186 | #define ASLE_IUER_VOLUME_UP_BTN (1 << 2) |
| 187 | #define ASLE_IUER_WINDOWS_BTN (1 << 1) |
| 188 | #define ASLE_IUER_POWER_BTN (1 << 0) |
| 189 | |
| 190 | /* Software System Control Interrupt (SWSCI) */ |
| 191 | #define SWSCI_SCIC_INDICATOR (1 << 0) |
| 192 | #define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1 |
| 193 | #define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1) |
| 194 | #define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8 |
| 195 | #define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8) |
| 196 | #define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8 |
| 197 | #define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8) |
| 198 | #define SWSCI_SCIC_EXIT_STATUS_SHIFT 5 |
| 199 | #define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5) |
| 200 | #define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1 |
| 201 | |
| 202 | #define SWSCI_FUNCTION_CODE(main, sub) \ |
| 203 | ((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \ |
| 204 | (sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT) |
| 205 | |
| 206 | /* SWSCI: Get BIOS Data (GBDA) */ |
| 207 | #define SWSCI_GBDA 4 |
| 208 | #define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0) |
| 209 | #define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1) |
| 210 | #define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4) |
| 211 | #define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5) |
| 212 | #define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6) |
| 213 | #define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7) |
| 214 | #define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10) |
| 215 | |
| 216 | /* SWSCI: System BIOS Callbacks (SBCB) */ |
| 217 | #define SWSCI_SBCB 6 |
| 218 | #define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0) |
| 219 | #define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1) |
| 220 | #define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3) |
| 221 | #define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4) |
| 222 | #define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5) |
| 223 | #define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6) |
| 224 | #define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7) |
| 225 | #define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8) |
| 226 | #define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9) |
| 227 | #define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10) |
| 228 | #define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11) |
| 229 | #define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16) |
| 230 | #define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17) |
| 231 | #define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18) |
| 232 | #define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19) |
| 233 | #define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21) |
| 234 | |
| 235 | /* |
| 236 | * ACPI Specification, Revision 5.0, Appendix B.3.2 _DOD (Enumerate All Devices |
| 237 | * Attached to the Display Adapter). |
| 238 | */ |
| 239 | #define ACPI_DISPLAY_INDEX_SHIFT 0 |
| 240 | #define ACPI_DISPLAY_INDEX_MASK (0xf << 0) |
| 241 | #define ACPI_DISPLAY_PORT_ATTACHMENT_SHIFT 4 |
| 242 | #define ACPI_DISPLAY_PORT_ATTACHMENT_MASK (0xf << 4) |
| 243 | #define ACPI_DISPLAY_TYPE_SHIFT 8 |
| 244 | #define ACPI_DISPLAY_TYPE_MASK (0xf << 8) |
| 245 | #define ACPI_DISPLAY_TYPE_OTHER (0 << 8) |
| 246 | #define ACPI_DISPLAY_TYPE_VGA (1 << 8) |
| 247 | #define ACPI_DISPLAY_TYPE_TV (2 << 8) |
| 248 | #define ACPI_DISPLAY_TYPE_EXTERNAL_DIGITAL (3 << 8) |
| 249 | #define ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL (4 << 8) |
| 250 | #define ACPI_VENDOR_SPECIFIC_SHIFT 12 |
| 251 | #define ACPI_VENDOR_SPECIFIC_MASK (0xf << 12) |
| 252 | #define ACPI_BIOS_CAN_DETECT (1 << 16) |
| 253 | #define ACPI_DEPENDS_ON_VGA (1 << 17) |
| 254 | #define ACPI_PIPE_ID_SHIFT 18 |
| 255 | #define ACPI_PIPE_ID_MASK (7 << 18) |
| 256 | #define ACPI_DEVICE_ID_SCHEME (1 << 31) |
| 257 | |
| 258 | #define MAX_DSLP 1500 |
| 259 | |
| 260 | static int swsci(struct drm_i915_private *dev_priv, |
| 261 | u32 function, u32 parm, u32 *parm_out) |
| 262 | { |
| 263 | struct opregion_swsci *swsci = dev_priv->opregion.swsci; |
| 264 | struct pci_dev *pdev = dev_priv->dev->pdev; |
| 265 | u32 main_function, sub_function, scic; |
| 266 | u16 swsci_val; |
| 267 | u32 dslp; |
| 268 | |
| 269 | if (!swsci) |
| 270 | return -ENODEV; |
| 271 | |
| 272 | main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >> |
| 273 | SWSCI_SCIC_MAIN_FUNCTION_SHIFT; |
| 274 | sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >> |
| 275 | SWSCI_SCIC_SUB_FUNCTION_SHIFT; |
| 276 | |
| 277 | /* Check if we can call the function. See swsci_setup for details. */ |
| 278 | if (main_function == SWSCI_SBCB) { |
| 279 | if ((dev_priv->opregion.swsci_sbcb_sub_functions & |
| 280 | (1 << sub_function)) == 0) |
| 281 | return -EINVAL; |
| 282 | } else if (main_function == SWSCI_GBDA) { |
| 283 | if ((dev_priv->opregion.swsci_gbda_sub_functions & |
| 284 | (1 << sub_function)) == 0) |
| 285 | return -EINVAL; |
| 286 | } |
| 287 | |
| 288 | /* Driver sleep timeout in ms. */ |
| 289 | dslp = swsci->dslp; |
| 290 | if (!dslp) { |
| 291 | /* The spec says 2ms should be the default, but it's too small |
| 292 | * for some machines. */ |
| 293 | dslp = 50; |
| 294 | } else if (dslp > MAX_DSLP) { |
| 295 | /* Hey bios, trust must be earned. */ |
| 296 | DRM_INFO_ONCE("ACPI BIOS requests an excessive sleep of %u ms, " |
| 297 | "using %u ms instead\n", dslp, MAX_DSLP); |
| 298 | dslp = MAX_DSLP; |
| 299 | } |
| 300 | |
| 301 | /* The spec tells us to do this, but we are the only user... */ |
| 302 | scic = swsci->scic; |
| 303 | if (scic & SWSCI_SCIC_INDICATOR) { |
| 304 | DRM_DEBUG_DRIVER("SWSCI request already in progress\n"); |
| 305 | return -EBUSY; |
| 306 | } |
| 307 | |
| 308 | scic = function | SWSCI_SCIC_INDICATOR; |
| 309 | |
| 310 | swsci->parm = parm; |
| 311 | swsci->scic = scic; |
| 312 | |
| 313 | /* Ensure SCI event is selected and event trigger is cleared. */ |
| 314 | pci_read_config_word(pdev, SWSCI, &swsci_val); |
| 315 | if (!(swsci_val & SWSCI_SCISEL) || (swsci_val & SWSCI_GSSCIE)) { |
| 316 | swsci_val |= SWSCI_SCISEL; |
| 317 | swsci_val &= ~SWSCI_GSSCIE; |
| 318 | pci_write_config_word(pdev, SWSCI, swsci_val); |
| 319 | } |
| 320 | |
| 321 | /* Use event trigger to tell bios to check the mail. */ |
| 322 | swsci_val |= SWSCI_GSSCIE; |
| 323 | pci_write_config_word(pdev, SWSCI, swsci_val); |
| 324 | |
| 325 | /* Poll for the result. */ |
| 326 | #define C (((scic = swsci->scic) & SWSCI_SCIC_INDICATOR) == 0) |
| 327 | if (wait_for(C, dslp)) { |
| 328 | DRM_DEBUG_DRIVER("SWSCI request timed out\n"); |
| 329 | return -ETIMEDOUT; |
| 330 | } |
| 331 | |
| 332 | scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >> |
| 333 | SWSCI_SCIC_EXIT_STATUS_SHIFT; |
| 334 | |
| 335 | /* Note: scic == 0 is an error! */ |
| 336 | if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) { |
| 337 | DRM_DEBUG_DRIVER("SWSCI request error %u\n", scic); |
| 338 | return -EIO; |
| 339 | } |
| 340 | |
| 341 | if (parm_out) |
| 342 | *parm_out = swsci->parm; |
| 343 | |
| 344 | return 0; |
| 345 | |
| 346 | #undef C |
| 347 | } |
| 348 | |
| 349 | #define DISPLAY_TYPE_CRT 0 |
| 350 | #define DISPLAY_TYPE_TV 1 |
| 351 | #define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2 |
| 352 | #define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3 |
| 353 | |
| 354 | int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, |
| 355 | bool enable) |
| 356 | { |
| 357 | struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev); |
| 358 | u32 parm = 0; |
| 359 | u32 type = 0; |
| 360 | u32 port; |
| 361 | |
| 362 | /* don't care about old stuff for now */ |
| 363 | if (!HAS_DDI(dev_priv)) |
| 364 | return 0; |
| 365 | |
| 366 | if (intel_encoder->type == INTEL_OUTPUT_DSI) |
| 367 | port = 0; |
| 368 | else |
| 369 | port = intel_ddi_get_encoder_port(intel_encoder); |
| 370 | |
| 371 | if (port == PORT_E) { |
| 372 | port = 0; |
| 373 | } else { |
| 374 | parm |= 1 << port; |
| 375 | port++; |
| 376 | } |
| 377 | |
| 378 | if (!enable) |
| 379 | parm |= 4 << 8; |
| 380 | |
| 381 | switch (intel_encoder->type) { |
| 382 | case INTEL_OUTPUT_ANALOG: |
| 383 | type = DISPLAY_TYPE_CRT; |
| 384 | break; |
| 385 | case INTEL_OUTPUT_UNKNOWN: |
| 386 | case INTEL_OUTPUT_DISPLAYPORT: |
| 387 | case INTEL_OUTPUT_HDMI: |
| 388 | case INTEL_OUTPUT_DP_MST: |
| 389 | type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL; |
| 390 | break; |
| 391 | case INTEL_OUTPUT_EDP: |
| 392 | case INTEL_OUTPUT_DSI: |
| 393 | type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL; |
| 394 | break; |
| 395 | default: |
| 396 | WARN_ONCE(1, "unsupported intel_encoder type %d\n", |
| 397 | intel_encoder->type); |
| 398 | return -EINVAL; |
| 399 | } |
| 400 | |
| 401 | parm |= type << (16 + port * 3); |
| 402 | |
| 403 | return swsci(dev_priv, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL); |
| 404 | } |
| 405 | |
| 406 | static const struct { |
| 407 | pci_power_t pci_power_state; |
| 408 | u32 parm; |
| 409 | } power_state_map[] = { |
| 410 | { PCI_D0, 0x00 }, |
| 411 | { PCI_D1, 0x01 }, |
| 412 | { PCI_D2, 0x02 }, |
| 413 | { PCI_D3hot, 0x04 }, |
| 414 | { PCI_D3cold, 0x04 }, |
| 415 | }; |
| 416 | |
| 417 | int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv, |
| 418 | pci_power_t state) |
| 419 | { |
| 420 | int i; |
| 421 | |
| 422 | if (!HAS_DDI(dev_priv)) |
| 423 | return 0; |
| 424 | |
| 425 | for (i = 0; i < ARRAY_SIZE(power_state_map); i++) { |
| 426 | if (state == power_state_map[i].pci_power_state) |
| 427 | return swsci(dev_priv, SWSCI_SBCB_ADAPTER_POWER_STATE, |
| 428 | power_state_map[i].parm, NULL); |
| 429 | } |
| 430 | |
| 431 | return -EINVAL; |
| 432 | } |
| 433 | |
| 434 | static u32 asle_set_backlight(struct drm_i915_private *dev_priv, u32 bclp) |
| 435 | { |
| 436 | struct intel_connector *connector; |
| 437 | struct opregion_asle *asle = dev_priv->opregion.asle; |
| 438 | struct drm_device *dev = dev_priv->dev; |
| 439 | |
| 440 | DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); |
| 441 | |
| 442 | if (acpi_video_get_backlight_type() == acpi_backlight_native) { |
| 443 | DRM_DEBUG_KMS("opregion backlight request ignored\n"); |
| 444 | return 0; |
| 445 | } |
| 446 | |
| 447 | if (!(bclp & ASLE_BCLP_VALID)) |
| 448 | return ASLC_BACKLIGHT_FAILED; |
| 449 | |
| 450 | bclp &= ASLE_BCLP_MSK; |
| 451 | if (bclp > 255) |
| 452 | return ASLC_BACKLIGHT_FAILED; |
| 453 | |
| 454 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
| 455 | |
| 456 | /* |
| 457 | * Update backlight on all connectors that support backlight (usually |
| 458 | * only one). |
| 459 | */ |
| 460 | DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp); |
| 461 | for_each_intel_connector(dev, connector) |
| 462 | intel_panel_set_backlight_acpi(connector, bclp, 255); |
| 463 | asle->cblv = DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID; |
| 464 | |
| 465 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
| 466 | |
| 467 | |
| 468 | return 0; |
| 469 | } |
| 470 | |
| 471 | static u32 asle_set_als_illum(struct drm_i915_private *dev_priv, u32 alsi) |
| 472 | { |
| 473 | /* alsi is the current ALS reading in lux. 0 indicates below sensor |
| 474 | range, 0xffff indicates above sensor range. 1-0xfffe are valid */ |
| 475 | DRM_DEBUG_DRIVER("Illum is not supported\n"); |
| 476 | return ASLC_ALS_ILLUM_FAILED; |
| 477 | } |
| 478 | |
| 479 | static u32 asle_set_pwm_freq(struct drm_i915_private *dev_priv, u32 pfmb) |
| 480 | { |
| 481 | DRM_DEBUG_DRIVER("PWM freq is not supported\n"); |
| 482 | return ASLC_PWM_FREQ_FAILED; |
| 483 | } |
| 484 | |
| 485 | static u32 asle_set_pfit(struct drm_i915_private *dev_priv, u32 pfit) |
| 486 | { |
| 487 | /* Panel fitting is currently controlled by the X code, so this is a |
| 488 | noop until modesetting support works fully */ |
| 489 | DRM_DEBUG_DRIVER("Pfit is not supported\n"); |
| 490 | return ASLC_PFIT_FAILED; |
| 491 | } |
| 492 | |
| 493 | static u32 asle_set_supported_rotation_angles(struct drm_i915_private *dev_priv, u32 srot) |
| 494 | { |
| 495 | DRM_DEBUG_DRIVER("SROT is not supported\n"); |
| 496 | return ASLC_ROTATION_ANGLES_FAILED; |
| 497 | } |
| 498 | |
| 499 | static u32 asle_set_button_array(struct drm_i915_private *dev_priv, u32 iuer) |
| 500 | { |
| 501 | if (!iuer) |
| 502 | DRM_DEBUG_DRIVER("Button array event is not supported (nothing)\n"); |
| 503 | if (iuer & ASLE_IUER_ROTATION_LOCK_BTN) |
| 504 | DRM_DEBUG_DRIVER("Button array event is not supported (rotation lock)\n"); |
| 505 | if (iuer & ASLE_IUER_VOLUME_DOWN_BTN) |
| 506 | DRM_DEBUG_DRIVER("Button array event is not supported (volume down)\n"); |
| 507 | if (iuer & ASLE_IUER_VOLUME_UP_BTN) |
| 508 | DRM_DEBUG_DRIVER("Button array event is not supported (volume up)\n"); |
| 509 | if (iuer & ASLE_IUER_WINDOWS_BTN) |
| 510 | DRM_DEBUG_DRIVER("Button array event is not supported (windows)\n"); |
| 511 | if (iuer & ASLE_IUER_POWER_BTN) |
| 512 | DRM_DEBUG_DRIVER("Button array event is not supported (power)\n"); |
| 513 | |
| 514 | return ASLC_BUTTON_ARRAY_FAILED; |
| 515 | } |
| 516 | |
| 517 | static u32 asle_set_convertible(struct drm_i915_private *dev_priv, u32 iuer) |
| 518 | { |
| 519 | if (iuer & ASLE_IUER_CONVERTIBLE) |
| 520 | DRM_DEBUG_DRIVER("Convertible is not supported (clamshell)\n"); |
| 521 | else |
| 522 | DRM_DEBUG_DRIVER("Convertible is not supported (slate)\n"); |
| 523 | |
| 524 | return ASLC_CONVERTIBLE_FAILED; |
| 525 | } |
| 526 | |
| 527 | static u32 asle_set_docking(struct drm_i915_private *dev_priv, u32 iuer) |
| 528 | { |
| 529 | if (iuer & ASLE_IUER_DOCKING) |
| 530 | DRM_DEBUG_DRIVER("Docking is not supported (docked)\n"); |
| 531 | else |
| 532 | DRM_DEBUG_DRIVER("Docking is not supported (undocked)\n"); |
| 533 | |
| 534 | return ASLC_DOCKING_FAILED; |
| 535 | } |
| 536 | |
| 537 | static u32 asle_isct_state(struct drm_i915_private *dev_priv) |
| 538 | { |
| 539 | DRM_DEBUG_DRIVER("ISCT is not supported\n"); |
| 540 | return ASLC_ISCT_STATE_FAILED; |
| 541 | } |
| 542 | |
| 543 | static void asle_work(struct work_struct *work) |
| 544 | { |
| 545 | struct intel_opregion *opregion = |
| 546 | container_of(work, struct intel_opregion, asle_work); |
| 547 | struct drm_i915_private *dev_priv = |
| 548 | container_of(opregion, struct drm_i915_private, opregion); |
| 549 | struct opregion_asle *asle = dev_priv->opregion.asle; |
| 550 | u32 aslc_stat = 0; |
| 551 | u32 aslc_req; |
| 552 | |
| 553 | if (!asle) |
| 554 | return; |
| 555 | |
| 556 | aslc_req = asle->aslc; |
| 557 | |
| 558 | if (!(aslc_req & ASLC_REQ_MSK)) { |
| 559 | DRM_DEBUG_DRIVER("No request on ASLC interrupt 0x%08x\n", |
| 560 | aslc_req); |
| 561 | return; |
| 562 | } |
| 563 | |
| 564 | if (aslc_req & ASLC_SET_ALS_ILLUM) |
| 565 | aslc_stat |= asle_set_als_illum(dev_priv, asle->alsi); |
| 566 | |
| 567 | if (aslc_req & ASLC_SET_BACKLIGHT) |
| 568 | aslc_stat |= asle_set_backlight(dev_priv, asle->bclp); |
| 569 | |
| 570 | if (aslc_req & ASLC_SET_PFIT) |
| 571 | aslc_stat |= asle_set_pfit(dev_priv, asle->pfit); |
| 572 | |
| 573 | if (aslc_req & ASLC_SET_PWM_FREQ) |
| 574 | aslc_stat |= asle_set_pwm_freq(dev_priv, asle->pfmb); |
| 575 | |
| 576 | if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES) |
| 577 | aslc_stat |= asle_set_supported_rotation_angles(dev_priv, |
| 578 | asle->srot); |
| 579 | |
| 580 | if (aslc_req & ASLC_BUTTON_ARRAY) |
| 581 | aslc_stat |= asle_set_button_array(dev_priv, asle->iuer); |
| 582 | |
| 583 | if (aslc_req & ASLC_CONVERTIBLE_INDICATOR) |
| 584 | aslc_stat |= asle_set_convertible(dev_priv, asle->iuer); |
| 585 | |
| 586 | if (aslc_req & ASLC_DOCKING_INDICATOR) |
| 587 | aslc_stat |= asle_set_docking(dev_priv, asle->iuer); |
| 588 | |
| 589 | if (aslc_req & ASLC_ISCT_STATE_CHANGE) |
| 590 | aslc_stat |= asle_isct_state(dev_priv); |
| 591 | |
| 592 | asle->aslc = aslc_stat; |
| 593 | } |
| 594 | |
| 595 | void intel_opregion_asle_intr(struct drm_i915_private *dev_priv) |
| 596 | { |
| 597 | if (dev_priv->opregion.asle) |
| 598 | schedule_work(&dev_priv->opregion.asle_work); |
| 599 | } |
| 600 | |
| 601 | #define ACPI_EV_DISPLAY_SWITCH (1<<0) |
| 602 | #define ACPI_EV_LID (1<<1) |
| 603 | #define ACPI_EV_DOCK (1<<2) |
| 604 | |
| 605 | static struct intel_opregion *system_opregion; |
| 606 | |
| 607 | static int intel_opregion_video_event(struct notifier_block *nb, |
| 608 | unsigned long val, void *data) |
| 609 | { |
| 610 | /* The only video events relevant to opregion are 0x80. These indicate |
| 611 | either a docking event, lid switch or display switch request. In |
| 612 | Linux, these are handled by the dock, button and video drivers. |
| 613 | */ |
| 614 | |
| 615 | struct acpi_bus_event *event = data; |
| 616 | struct opregion_acpi *acpi; |
| 617 | int ret = NOTIFY_OK; |
| 618 | |
| 619 | if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) |
| 620 | return NOTIFY_DONE; |
| 621 | |
| 622 | if (!system_opregion) |
| 623 | return NOTIFY_DONE; |
| 624 | |
| 625 | acpi = system_opregion->acpi; |
| 626 | |
| 627 | if (event->type == 0x80 && ((acpi->cevt & 1) == 0)) |
| 628 | ret = NOTIFY_BAD; |
| 629 | |
| 630 | acpi->csts = 0; |
| 631 | |
| 632 | return ret; |
| 633 | } |
| 634 | |
| 635 | static struct notifier_block intel_opregion_notifier = { |
| 636 | .notifier_call = intel_opregion_video_event, |
| 637 | }; |
| 638 | |
| 639 | /* |
| 640 | * Initialise the DIDL field in opregion. This passes a list of devices to |
| 641 | * the firmware. Values are defined by section B.4.2 of the ACPI specification |
| 642 | * (version 3) |
| 643 | */ |
| 644 | |
| 645 | static u32 get_did(struct intel_opregion *opregion, int i) |
| 646 | { |
| 647 | u32 did; |
| 648 | |
| 649 | if (i < ARRAY_SIZE(opregion->acpi->didl)) { |
| 650 | did = opregion->acpi->didl[i]; |
| 651 | } else { |
| 652 | i -= ARRAY_SIZE(opregion->acpi->didl); |
| 653 | |
| 654 | if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) |
| 655 | return 0; |
| 656 | |
| 657 | did = opregion->acpi->did2[i]; |
| 658 | } |
| 659 | |
| 660 | return did; |
| 661 | } |
| 662 | |
| 663 | static void set_did(struct intel_opregion *opregion, int i, u32 val) |
| 664 | { |
| 665 | if (i < ARRAY_SIZE(opregion->acpi->didl)) { |
| 666 | opregion->acpi->didl[i] = val; |
| 667 | } else { |
| 668 | i -= ARRAY_SIZE(opregion->acpi->didl); |
| 669 | |
| 670 | if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) |
| 671 | return; |
| 672 | |
| 673 | opregion->acpi->did2[i] = val; |
| 674 | } |
| 675 | } |
| 676 | |
| 677 | static void intel_didl_outputs(struct drm_i915_private *dev_priv) |
| 678 | { |
| 679 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 680 | struct pci_dev *pdev = dev_priv->dev->pdev; |
| 681 | struct drm_connector *connector; |
| 682 | acpi_handle handle; |
| 683 | struct acpi_device *acpi_dev, *acpi_cdev, *acpi_video_bus = NULL; |
| 684 | unsigned long long device_id; |
| 685 | acpi_status status; |
| 686 | u32 temp, max_outputs; |
| 687 | int i = 0; |
| 688 | |
| 689 | handle = ACPI_HANDLE(&pdev->dev); |
| 690 | if (!handle || acpi_bus_get_device(handle, &acpi_dev)) |
| 691 | return; |
| 692 | |
| 693 | if (acpi_is_video_device(handle)) |
| 694 | acpi_video_bus = acpi_dev; |
| 695 | else { |
| 696 | list_for_each_entry(acpi_cdev, &acpi_dev->children, node) { |
| 697 | if (acpi_is_video_device(acpi_cdev->handle)) { |
| 698 | acpi_video_bus = acpi_cdev; |
| 699 | break; |
| 700 | } |
| 701 | } |
| 702 | } |
| 703 | |
| 704 | if (!acpi_video_bus) { |
| 705 | DRM_DEBUG_KMS("No ACPI video bus found\n"); |
| 706 | return; |
| 707 | } |
| 708 | |
| 709 | /* |
| 710 | * In theory, did2, the extended didl, gets added at opregion version |
| 711 | * 3.0. In practice, however, we're supposed to set it for earlier |
| 712 | * versions as well, since a BIOS that doesn't understand did2 should |
| 713 | * not look at it anyway. Use a variable so we can tweak this if a need |
| 714 | * arises later. |
| 715 | */ |
| 716 | max_outputs = ARRAY_SIZE(opregion->acpi->didl) + |
| 717 | ARRAY_SIZE(opregion->acpi->did2); |
| 718 | |
| 719 | list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) { |
| 720 | if (i >= max_outputs) { |
| 721 | DRM_DEBUG_KMS("More than %u outputs detected via ACPI\n", |
| 722 | max_outputs); |
| 723 | return; |
| 724 | } |
| 725 | status = acpi_evaluate_integer(acpi_cdev->handle, "_ADR", |
| 726 | NULL, &device_id); |
| 727 | if (ACPI_SUCCESS(status)) { |
| 728 | if (!device_id) |
| 729 | goto blind_set; |
| 730 | set_did(opregion, i++, (u32)(device_id & 0x0f0f)); |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | end: |
| 735 | DRM_DEBUG_KMS("%d outputs detected\n", i); |
| 736 | |
| 737 | /* If fewer than max outputs, the list must be null terminated */ |
| 738 | if (i < max_outputs) |
| 739 | set_did(opregion, i, 0); |
| 740 | return; |
| 741 | |
| 742 | blind_set: |
| 743 | i = 0; |
| 744 | list_for_each_entry(connector, &dev_priv->dev->mode_config.connector_list, head) { |
| 745 | int output_type = ACPI_DISPLAY_TYPE_OTHER; |
| 746 | if (i >= max_outputs) { |
| 747 | DRM_DEBUG_KMS("More than %u outputs in connector list\n", |
| 748 | max_outputs); |
| 749 | return; |
| 750 | } |
| 751 | switch (connector->connector_type) { |
| 752 | case DRM_MODE_CONNECTOR_VGA: |
| 753 | case DRM_MODE_CONNECTOR_DVIA: |
| 754 | output_type = ACPI_DISPLAY_TYPE_VGA; |
| 755 | break; |
| 756 | case DRM_MODE_CONNECTOR_Composite: |
| 757 | case DRM_MODE_CONNECTOR_SVIDEO: |
| 758 | case DRM_MODE_CONNECTOR_Component: |
| 759 | case DRM_MODE_CONNECTOR_9PinDIN: |
| 760 | output_type = ACPI_DISPLAY_TYPE_TV; |
| 761 | break; |
| 762 | case DRM_MODE_CONNECTOR_DVII: |
| 763 | case DRM_MODE_CONNECTOR_DVID: |
| 764 | case DRM_MODE_CONNECTOR_DisplayPort: |
| 765 | case DRM_MODE_CONNECTOR_HDMIA: |
| 766 | case DRM_MODE_CONNECTOR_HDMIB: |
| 767 | output_type = ACPI_DISPLAY_TYPE_EXTERNAL_DIGITAL; |
| 768 | break; |
| 769 | case DRM_MODE_CONNECTOR_LVDS: |
| 770 | output_type = ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL; |
| 771 | break; |
| 772 | } |
| 773 | temp = get_did(opregion, i); |
| 774 | set_did(opregion, i, temp | (1 << 31) | output_type | i); |
| 775 | i++; |
| 776 | } |
| 777 | goto end; |
| 778 | } |
| 779 | |
| 780 | static void intel_setup_cadls(struct drm_i915_private *dev_priv) |
| 781 | { |
| 782 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 783 | int i = 0; |
| 784 | u32 disp_id; |
| 785 | |
| 786 | /* Initialize the CADL field by duplicating the DIDL values. |
| 787 | * Technically, this is not always correct as display outputs may exist, |
| 788 | * but not active. This initialization is necessary for some Clevo |
| 789 | * laptops that check this field before processing the brightness and |
| 790 | * display switching hotkeys. Just like DIDL, CADL is NULL-terminated if |
| 791 | * there are less than eight devices. */ |
| 792 | do { |
| 793 | disp_id = get_did(opregion, i); |
| 794 | opregion->acpi->cadl[i] = disp_id; |
| 795 | } while (++i < 8 && disp_id != 0); |
| 796 | } |
| 797 | |
| 798 | void intel_opregion_register(struct drm_i915_private *dev_priv) |
| 799 | { |
| 800 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 801 | |
| 802 | if (!opregion->header) |
| 803 | return; |
| 804 | |
| 805 | if (opregion->acpi) { |
| 806 | intel_didl_outputs(dev_priv); |
| 807 | intel_setup_cadls(dev_priv); |
| 808 | |
| 809 | /* Notify BIOS we are ready to handle ACPI video ext notifs. |
| 810 | * Right now, all the events are handled by the ACPI video module. |
| 811 | * We don't actually need to do anything with them. */ |
| 812 | opregion->acpi->csts = 0; |
| 813 | opregion->acpi->drdy = 1; |
| 814 | |
| 815 | system_opregion = opregion; |
| 816 | register_acpi_notifier(&intel_opregion_notifier); |
| 817 | } |
| 818 | |
| 819 | if (opregion->asle) { |
| 820 | opregion->asle->tche = ASLE_TCHE_BLC_EN; |
| 821 | opregion->asle->ardy = ASLE_ARDY_READY; |
| 822 | } |
| 823 | } |
| 824 | |
| 825 | void intel_opregion_unregister(struct drm_i915_private *dev_priv) |
| 826 | { |
| 827 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 828 | |
| 829 | if (!opregion->header) |
| 830 | return; |
| 831 | |
| 832 | if (opregion->asle) |
| 833 | opregion->asle->ardy = ASLE_ARDY_NOT_READY; |
| 834 | |
| 835 | cancel_work_sync(&dev_priv->opregion.asle_work); |
| 836 | |
| 837 | if (opregion->acpi) { |
| 838 | opregion->acpi->drdy = 0; |
| 839 | |
| 840 | system_opregion = NULL; |
| 841 | unregister_acpi_notifier(&intel_opregion_notifier); |
| 842 | } |
| 843 | |
| 844 | /* just clear all opregion memory pointers now */ |
| 845 | memunmap(opregion->header); |
| 846 | if (opregion->rvda) { |
| 847 | memunmap(opregion->rvda); |
| 848 | opregion->rvda = NULL; |
| 849 | } |
| 850 | opregion->header = NULL; |
| 851 | opregion->acpi = NULL; |
| 852 | opregion->swsci = NULL; |
| 853 | opregion->asle = NULL; |
| 854 | opregion->vbt = NULL; |
| 855 | opregion->lid_state = NULL; |
| 856 | } |
| 857 | |
| 858 | static void swsci_setup(struct drm_i915_private *dev_priv) |
| 859 | { |
| 860 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 861 | bool requested_callbacks = false; |
| 862 | u32 tmp; |
| 863 | |
| 864 | /* Sub-function code 0 is okay, let's allow them. */ |
| 865 | opregion->swsci_gbda_sub_functions = 1; |
| 866 | opregion->swsci_sbcb_sub_functions = 1; |
| 867 | |
| 868 | /* We use GBDA to ask for supported GBDA calls. */ |
| 869 | if (swsci(dev_priv, SWSCI_GBDA_SUPPORTED_CALLS, 0, &tmp) == 0) { |
| 870 | /* make the bits match the sub-function codes */ |
| 871 | tmp <<= 1; |
| 872 | opregion->swsci_gbda_sub_functions |= tmp; |
| 873 | } |
| 874 | |
| 875 | /* |
| 876 | * We also use GBDA to ask for _requested_ SBCB callbacks. The driver |
| 877 | * must not call interfaces that are not specifically requested by the |
| 878 | * bios. |
| 879 | */ |
| 880 | if (swsci(dev_priv, SWSCI_GBDA_REQUESTED_CALLBACKS, 0, &tmp) == 0) { |
| 881 | /* here, the bits already match sub-function codes */ |
| 882 | opregion->swsci_sbcb_sub_functions |= tmp; |
| 883 | requested_callbacks = true; |
| 884 | } |
| 885 | |
| 886 | /* |
| 887 | * But we use SBCB to ask for _supported_ SBCB calls. This does not mean |
| 888 | * the callback is _requested_. But we still can't call interfaces that |
| 889 | * are not requested. |
| 890 | */ |
| 891 | if (swsci(dev_priv, SWSCI_SBCB_SUPPORTED_CALLBACKS, 0, &tmp) == 0) { |
| 892 | /* make the bits match the sub-function codes */ |
| 893 | u32 low = tmp & 0x7ff; |
| 894 | u32 high = tmp & ~0xfff; /* bit 11 is reserved */ |
| 895 | tmp = (high << 4) | (low << 1) | 1; |
| 896 | |
| 897 | /* best guess what to do with supported wrt requested */ |
| 898 | if (requested_callbacks) { |
| 899 | u32 req = opregion->swsci_sbcb_sub_functions; |
| 900 | if ((req & tmp) != req) |
| 901 | DRM_DEBUG_DRIVER("SWSCI BIOS requested (%08x) SBCB callbacks that are not supported (%08x)\n", req, tmp); |
| 902 | /* XXX: for now, trust the requested callbacks */ |
| 903 | /* opregion->swsci_sbcb_sub_functions &= tmp; */ |
| 904 | } else { |
| 905 | opregion->swsci_sbcb_sub_functions |= tmp; |
| 906 | } |
| 907 | } |
| 908 | |
| 909 | DRM_DEBUG_DRIVER("SWSCI GBDA callbacks %08x, SBCB callbacks %08x\n", |
| 910 | opregion->swsci_gbda_sub_functions, |
| 911 | opregion->swsci_sbcb_sub_functions); |
| 912 | } |
| 913 | |
| 914 | static int intel_no_opregion_vbt_callback(const struct dmi_system_id *id) |
| 915 | { |
| 916 | DRM_DEBUG_KMS("Falling back to manually reading VBT from " |
| 917 | "VBIOS ROM for %s\n", id->ident); |
| 918 | return 1; |
| 919 | } |
| 920 | |
| 921 | static const struct dmi_system_id intel_no_opregion_vbt[] = { |
| 922 | { |
| 923 | .callback = intel_no_opregion_vbt_callback, |
| 924 | .ident = "ThinkCentre A57", |
| 925 | .matches = { |
| 926 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| 927 | DMI_MATCH(DMI_PRODUCT_NAME, "97027RG"), |
| 928 | }, |
| 929 | }, |
| 930 | { } |
| 931 | }; |
| 932 | |
| 933 | int intel_opregion_setup(struct drm_i915_private *dev_priv) |
| 934 | { |
| 935 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 936 | struct pci_dev *pdev = dev_priv->dev->pdev; |
| 937 | u32 asls, mboxes; |
| 938 | char buf[sizeof(OPREGION_SIGNATURE)]; |
| 939 | int err = 0; |
| 940 | void *base; |
| 941 | |
| 942 | BUILD_BUG_ON(sizeof(struct opregion_header) != 0x100); |
| 943 | BUILD_BUG_ON(sizeof(struct opregion_acpi) != 0x100); |
| 944 | BUILD_BUG_ON(sizeof(struct opregion_swsci) != 0x100); |
| 945 | BUILD_BUG_ON(sizeof(struct opregion_asle) != 0x100); |
| 946 | BUILD_BUG_ON(sizeof(struct opregion_asle_ext) != 0x400); |
| 947 | |
| 948 | pci_read_config_dword(pdev, ASLS, &asls); |
| 949 | DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); |
| 950 | if (asls == 0) { |
| 951 | DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n"); |
| 952 | return -ENOTSUPP; |
| 953 | } |
| 954 | |
| 955 | INIT_WORK(&opregion->asle_work, asle_work); |
| 956 | |
| 957 | base = memremap(asls, OPREGION_SIZE, MEMREMAP_WB); |
| 958 | if (!base) |
| 959 | return -ENOMEM; |
| 960 | |
| 961 | memcpy(buf, base, sizeof(buf)); |
| 962 | |
| 963 | if (memcmp(buf, OPREGION_SIGNATURE, 16)) { |
| 964 | DRM_DEBUG_DRIVER("opregion signature mismatch\n"); |
| 965 | err = -EINVAL; |
| 966 | goto err_out; |
| 967 | } |
| 968 | opregion->header = base; |
| 969 | opregion->lid_state = base + ACPI_CLID; |
| 970 | |
| 971 | mboxes = opregion->header->mboxes; |
| 972 | if (mboxes & MBOX_ACPI) { |
| 973 | DRM_DEBUG_DRIVER("Public ACPI methods supported\n"); |
| 974 | opregion->acpi = base + OPREGION_ACPI_OFFSET; |
| 975 | } |
| 976 | |
| 977 | if (mboxes & MBOX_SWSCI) { |
| 978 | DRM_DEBUG_DRIVER("SWSCI supported\n"); |
| 979 | opregion->swsci = base + OPREGION_SWSCI_OFFSET; |
| 980 | swsci_setup(dev_priv); |
| 981 | } |
| 982 | |
| 983 | if (mboxes & MBOX_ASLE) { |
| 984 | DRM_DEBUG_DRIVER("ASLE supported\n"); |
| 985 | opregion->asle = base + OPREGION_ASLE_OFFSET; |
| 986 | |
| 987 | opregion->asle->ardy = ASLE_ARDY_NOT_READY; |
| 988 | } |
| 989 | |
| 990 | if (mboxes & MBOX_ASLE_EXT) |
| 991 | DRM_DEBUG_DRIVER("ASLE extension supported\n"); |
| 992 | |
| 993 | if (!dmi_check_system(intel_no_opregion_vbt)) { |
| 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 | } |
| 1005 | |
| 1006 | if (intel_bios_is_valid_vbt(vbt, vbt_size)) { |
| 1007 | DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (RVDA)\n"); |
| 1008 | opregion->vbt = vbt; |
| 1009 | opregion->vbt_size = vbt_size; |
| 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 | } |
| 1018 | } |
| 1019 | } |
| 1020 | |
| 1021 | return 0; |
| 1022 | |
| 1023 | err_out: |
| 1024 | memunmap(base); |
| 1025 | return err; |
| 1026 | } |
| 1027 | |
| 1028 | int |
| 1029 | intel_opregion_get_panel_type(struct drm_i915_private *dev_priv) |
| 1030 | { |
| 1031 | u32 panel_details; |
| 1032 | int ret; |
| 1033 | |
| 1034 | ret = swsci(dev_priv, SWSCI_GBDA_PANEL_DETAILS, 0x0, &panel_details); |
| 1035 | if (ret) { |
| 1036 | DRM_DEBUG_KMS("Failed to get panel details from OpRegion (%d)\n", |
| 1037 | ret); |
| 1038 | return ret; |
| 1039 | } |
| 1040 | |
| 1041 | ret = (panel_details >> 8) & 0xff; |
| 1042 | if (ret > 0x10) { |
| 1043 | DRM_DEBUG_KMS("Invalid OpRegion panel type 0x%x\n", ret); |
| 1044 | return -EINVAL; |
| 1045 | } |
| 1046 | |
| 1047 | /* fall back to VBT panel type? */ |
| 1048 | if (ret == 0x0) { |
| 1049 | DRM_DEBUG_KMS("No panel type in OpRegion\n"); |
| 1050 | return -ENODEV; |
| 1051 | } |
| 1052 | |
| 1053 | return ret - 1; |
| 1054 | } |