Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 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 | |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 28 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 29 | |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 30 | #include <linux/acpi.h> |
Michael Karcher | b705120 | 2011-01-23 18:17:17 +0000 | [diff] [blame] | 31 | #include <linux/acpi_io.h> |
Matthew Garrett | 74a365b | 2009-03-19 21:35:39 +0000 | [diff] [blame] | 32 | #include <acpi/video.h> |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 33 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 34 | #include <drm/drmP.h> |
| 35 | #include <drm/i915_drm.h> |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 36 | #include "i915_drv.h" |
Chris Wilson | a957355 | 2010-08-22 13:18:16 +0100 | [diff] [blame] | 37 | #include "intel_drv.h" |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 38 | |
Jani Nikula | ebde53c | 2013-09-02 10:38:59 +0300 | [diff] [blame] | 39 | #define PCI_ASLE 0xe4 |
| 40 | #define PCI_ASLS 0xfc |
| 41 | #define PCI_SWSCI 0xe8 |
| 42 | #define PCI_SWSCI_SCISEL (1 << 15) |
| 43 | #define PCI_SWSCI_GSSCIE (1 << 0) |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 44 | |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 45 | #define OPREGION_HEADER_OFFSET 0 |
| 46 | #define OPREGION_ACPI_OFFSET 0x100 |
Chris Wilson | 82d3c90 | 2011-02-24 18:13:42 +0000 | [diff] [blame] | 47 | #define ACPI_CLID 0x01ac /* current lid state indicator */ |
| 48 | #define ACPI_CDCK 0x01b0 /* current docking state indicator */ |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 49 | #define OPREGION_SWSCI_OFFSET 0x200 |
| 50 | #define OPREGION_ASLE_OFFSET 0x300 |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 51 | #define OPREGION_VBT_OFFSET 0x400 |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 52 | |
| 53 | #define OPREGION_SIGNATURE "IntelGraphicsMem" |
| 54 | #define MBOX_ACPI (1<<0) |
| 55 | #define MBOX_SWSCI (1<<1) |
| 56 | #define MBOX_ASLE (1<<2) |
| 57 | |
| 58 | struct opregion_header { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 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 | u8 reserved[164]; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 67 | } __attribute__((packed)); |
| 68 | |
| 69 | /* OpRegion mailbox #1: public ACPI methods */ |
| 70 | struct opregion_acpi { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 71 | u32 drdy; /* driver readiness */ |
| 72 | u32 csts; /* notification status */ |
| 73 | u32 cevt; /* current event */ |
| 74 | u8 rsvd1[20]; |
| 75 | u32 didl[8]; /* supported display devices ID list */ |
| 76 | u32 cpdl[8]; /* currently presented display list */ |
| 77 | u32 cadl[8]; /* currently active display list */ |
| 78 | u32 nadl[8]; /* next active devices list */ |
| 79 | u32 aslp; /* ASL sleep time-out */ |
| 80 | u32 tidx; /* toggle table index */ |
| 81 | u32 chpd; /* current hotplug enable indicator */ |
| 82 | u32 clid; /* current lid state*/ |
| 83 | u32 cdck; /* current docking state */ |
| 84 | u32 sxsw; /* Sx state resume */ |
| 85 | u32 evts; /* ASL supported events */ |
| 86 | u32 cnot; /* current OS notification */ |
| 87 | u32 nrdy; /* driver status */ |
| 88 | u8 rsvd2[60]; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 89 | } __attribute__((packed)); |
| 90 | |
| 91 | /* OpRegion mailbox #2: SWSCI */ |
| 92 | struct opregion_swsci { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 93 | u32 scic; /* SWSCI command|status|data */ |
| 94 | u32 parm; /* command parameters */ |
| 95 | u32 dslp; /* driver sleep time-out */ |
| 96 | u8 rsvd[244]; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 97 | } __attribute__((packed)); |
| 98 | |
| 99 | /* OpRegion mailbox #3: ASLE */ |
| 100 | struct opregion_asle { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 101 | u32 ardy; /* driver readiness */ |
| 102 | u32 aslc; /* ASLE interrupt command */ |
| 103 | u32 tche; /* technology enabled indicator */ |
| 104 | u32 alsi; /* current ALS illuminance reading */ |
| 105 | u32 bclp; /* backlight brightness to set */ |
| 106 | u32 pfit; /* panel fitting state */ |
| 107 | u32 cblv; /* current brightness level */ |
| 108 | u16 bclm[20]; /* backlight level duty cycle mapping table */ |
| 109 | u32 cpfm; /* current panel fitting mode */ |
| 110 | u32 epfm; /* enabled panel fitting modes */ |
| 111 | u8 plut[74]; /* panel LUT and identifier */ |
| 112 | u32 pfmb; /* PWM freq and min brightness */ |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 113 | u32 cddv; /* color correction default values */ |
| 114 | u32 pcft; /* power conservation features */ |
| 115 | u32 srot; /* supported rotation angles */ |
| 116 | u32 iuer; /* IUER events */ |
| 117 | u8 rsvd[86]; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 118 | } __attribute__((packed)); |
| 119 | |
Jani Nikula | 68bca4b | 2013-04-29 13:02:51 +0300 | [diff] [blame] | 120 | /* Driver readiness indicator */ |
| 121 | #define ASLE_ARDY_READY (1 << 0) |
| 122 | #define ASLE_ARDY_NOT_READY (0 << 0) |
| 123 | |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 124 | /* ASLE Interrupt Command (ASLC) bits */ |
| 125 | #define ASLC_SET_ALS_ILLUM (1 << 0) |
| 126 | #define ASLC_SET_BACKLIGHT (1 << 1) |
| 127 | #define ASLC_SET_PFIT (1 << 2) |
| 128 | #define ASLC_SET_PWM_FREQ (1 << 3) |
| 129 | #define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4) |
| 130 | #define ASLC_BUTTON_ARRAY (1 << 5) |
| 131 | #define ASLC_CONVERTIBLE_INDICATOR (1 << 6) |
| 132 | #define ASLC_DOCKING_INDICATOR (1 << 7) |
| 133 | #define ASLC_ISCT_STATE_CHANGE (1 << 8) |
| 134 | #define ASLC_REQ_MSK 0x1ff |
| 135 | /* response bits */ |
| 136 | #define ASLC_ALS_ILLUM_FAILED (1 << 10) |
| 137 | #define ASLC_BACKLIGHT_FAILED (1 << 12) |
| 138 | #define ASLC_PFIT_FAILED (1 << 14) |
| 139 | #define ASLC_PWM_FREQ_FAILED (1 << 16) |
| 140 | #define ASLC_ROTATION_ANGLES_FAILED (1 << 18) |
| 141 | #define ASLC_BUTTON_ARRAY_FAILED (1 << 20) |
| 142 | #define ASLC_CONVERTIBLE_FAILED (1 << 22) |
| 143 | #define ASLC_DOCKING_FAILED (1 << 24) |
| 144 | #define ASLC_ISCT_STATE_FAILED (1 << 26) |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 145 | |
Jani Nikula | f599cc2 | 2013-04-29 13:02:50 +0300 | [diff] [blame] | 146 | /* Technology enabled indicator */ |
| 147 | #define ASLE_TCHE_ALS_EN (1 << 0) |
| 148 | #define ASLE_TCHE_BLC_EN (1 << 1) |
| 149 | #define ASLE_TCHE_PFIT_EN (1 << 2) |
| 150 | #define ASLE_TCHE_PFMB_EN (1 << 3) |
| 151 | |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 152 | /* ASLE backlight brightness to set */ |
| 153 | #define ASLE_BCLP_VALID (1<<31) |
| 154 | #define ASLE_BCLP_MSK (~(1<<31)) |
| 155 | |
| 156 | /* ASLE panel fitting request */ |
| 157 | #define ASLE_PFIT_VALID (1<<31) |
| 158 | #define ASLE_PFIT_CENTER (1<<0) |
| 159 | #define ASLE_PFIT_STRETCH_TEXT (1<<1) |
| 160 | #define ASLE_PFIT_STRETCH_GFX (1<<2) |
| 161 | |
| 162 | /* PWM frequency and minimum brightness */ |
| 163 | #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) |
| 164 | #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) |
| 165 | #define ASLE_PFMB_PWM_MASK (0x7ffffe00) |
| 166 | #define ASLE_PFMB_PWM_VALID (1<<31) |
| 167 | |
| 168 | #define ASLE_CBLV_VALID (1<<31) |
| 169 | |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 170 | /* IUER */ |
| 171 | #define ASLE_IUER_DOCKING (1 << 7) |
| 172 | #define ASLE_IUER_CONVERTIBLE (1 << 6) |
| 173 | #define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4) |
| 174 | #define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3) |
| 175 | #define ASLE_IUER_VOLUME_UP_BTN (1 << 2) |
| 176 | #define ASLE_IUER_WINDOWS_BTN (1 << 1) |
| 177 | #define ASLE_IUER_POWER_BTN (1 << 0) |
| 178 | |
Jani Nikula | ebde53c | 2013-09-02 10:38:59 +0300 | [diff] [blame] | 179 | /* Software System Control Interrupt (SWSCI) */ |
| 180 | #define SWSCI_SCIC_INDICATOR (1 << 0) |
| 181 | #define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1 |
| 182 | #define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1) |
| 183 | #define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8 |
| 184 | #define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8) |
| 185 | #define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8 |
| 186 | #define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8) |
| 187 | #define SWSCI_SCIC_EXIT_STATUS_SHIFT 5 |
| 188 | #define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5) |
| 189 | #define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1 |
| 190 | |
| 191 | #define SWSCI_FUNCTION_CODE(main, sub) \ |
| 192 | ((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \ |
| 193 | (sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT) |
| 194 | |
| 195 | /* SWSCI: Get BIOS Data (GBDA) */ |
| 196 | #define SWSCI_GBDA 4 |
| 197 | #define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0) |
| 198 | #define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1) |
| 199 | #define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4) |
| 200 | #define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5) |
| 201 | #define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6) |
| 202 | #define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7) |
| 203 | #define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10) |
| 204 | |
| 205 | /* SWSCI: System BIOS Callbacks (SBCB) */ |
| 206 | #define SWSCI_SBCB 6 |
| 207 | #define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0) |
| 208 | #define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1) |
| 209 | #define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3) |
| 210 | #define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4) |
| 211 | #define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5) |
| 212 | #define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6) |
| 213 | #define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7) |
| 214 | #define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8) |
| 215 | #define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9) |
| 216 | #define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10) |
| 217 | #define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11) |
| 218 | #define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16) |
| 219 | #define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17) |
| 220 | #define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18) |
| 221 | #define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19) |
| 222 | #define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21) |
| 223 | |
Matthew Garrett | 74a365b | 2009-03-19 21:35:39 +0000 | [diff] [blame] | 224 | #define ACPI_OTHER_OUTPUT (0<<8) |
| 225 | #define ACPI_VGA_OUTPUT (1<<8) |
| 226 | #define ACPI_TV_OUTPUT (2<<8) |
| 227 | #define ACPI_DIGITAL_OUTPUT (3<<8) |
| 228 | #define ACPI_LVDS_OUTPUT (4<<8) |
| 229 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 230 | #ifdef CONFIG_ACPI |
Jani Nikula | ebde53c | 2013-09-02 10:38:59 +0300 | [diff] [blame] | 231 | static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out) |
| 232 | { |
| 233 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 234 | struct opregion_swsci __iomem *swsci = dev_priv->opregion.swsci; |
| 235 | u32 main_function, sub_function, scic; |
| 236 | u16 pci_swsci; |
| 237 | u32 dslp; |
| 238 | |
| 239 | if (!swsci) |
| 240 | return -ENODEV; |
| 241 | |
| 242 | main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >> |
| 243 | SWSCI_SCIC_MAIN_FUNCTION_SHIFT; |
| 244 | sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >> |
| 245 | SWSCI_SCIC_SUB_FUNCTION_SHIFT; |
| 246 | |
| 247 | /* Check if we can call the function. See swsci_setup for details. */ |
| 248 | if (main_function == SWSCI_SBCB) { |
| 249 | if ((dev_priv->opregion.swsci_sbcb_sub_functions & |
| 250 | (1 << sub_function)) == 0) |
| 251 | return -EINVAL; |
| 252 | } else if (main_function == SWSCI_GBDA) { |
| 253 | if ((dev_priv->opregion.swsci_gbda_sub_functions & |
| 254 | (1 << sub_function)) == 0) |
| 255 | return -EINVAL; |
| 256 | } |
| 257 | |
| 258 | /* Driver sleep timeout in ms. */ |
| 259 | dslp = ioread32(&swsci->dslp); |
| 260 | if (!dslp) { |
Paulo Zanoni | 4994aa8 | 2013-10-09 16:39:57 -0300 | [diff] [blame] | 261 | /* The spec says 2ms should be the default, but it's too small |
| 262 | * for some machines. */ |
| 263 | dslp = 50; |
Jani Nikula | ebde53c | 2013-09-02 10:38:59 +0300 | [diff] [blame] | 264 | } else if (dslp > 500) { |
| 265 | /* Hey bios, trust must be earned. */ |
| 266 | WARN_ONCE(1, "excessive driver sleep timeout (DSPL) %u\n", dslp); |
| 267 | dslp = 500; |
| 268 | } |
| 269 | |
| 270 | /* The spec tells us to do this, but we are the only user... */ |
| 271 | scic = ioread32(&swsci->scic); |
| 272 | if (scic & SWSCI_SCIC_INDICATOR) { |
| 273 | DRM_DEBUG_DRIVER("SWSCI request already in progress\n"); |
| 274 | return -EBUSY; |
| 275 | } |
| 276 | |
| 277 | scic = function | SWSCI_SCIC_INDICATOR; |
| 278 | |
| 279 | iowrite32(parm, &swsci->parm); |
| 280 | iowrite32(scic, &swsci->scic); |
| 281 | |
| 282 | /* Ensure SCI event is selected and event trigger is cleared. */ |
| 283 | pci_read_config_word(dev->pdev, PCI_SWSCI, &pci_swsci); |
| 284 | if (!(pci_swsci & PCI_SWSCI_SCISEL) || (pci_swsci & PCI_SWSCI_GSSCIE)) { |
| 285 | pci_swsci |= PCI_SWSCI_SCISEL; |
| 286 | pci_swsci &= ~PCI_SWSCI_GSSCIE; |
| 287 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
| 288 | } |
| 289 | |
| 290 | /* Use event trigger to tell bios to check the mail. */ |
| 291 | pci_swsci |= PCI_SWSCI_GSSCIE; |
| 292 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
| 293 | |
| 294 | /* Poll for the result. */ |
| 295 | #define C (((scic = ioread32(&swsci->scic)) & SWSCI_SCIC_INDICATOR) == 0) |
| 296 | if (wait_for(C, dslp)) { |
| 297 | DRM_DEBUG_DRIVER("SWSCI request timed out\n"); |
| 298 | return -ETIMEDOUT; |
| 299 | } |
| 300 | |
| 301 | scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >> |
| 302 | SWSCI_SCIC_EXIT_STATUS_SHIFT; |
| 303 | |
| 304 | /* Note: scic == 0 is an error! */ |
| 305 | if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) { |
| 306 | DRM_DEBUG_DRIVER("SWSCI request error %u\n", scic); |
| 307 | return -EIO; |
| 308 | } |
| 309 | |
| 310 | if (parm_out) |
| 311 | *parm_out = ioread32(&swsci->parm); |
| 312 | |
| 313 | return 0; |
| 314 | |
| 315 | #undef C |
| 316 | } |
| 317 | |
Jani Nikula | 9c4b0a6 | 2013-08-30 19:40:30 +0300 | [diff] [blame] | 318 | #define DISPLAY_TYPE_CRT 0 |
| 319 | #define DISPLAY_TYPE_TV 1 |
| 320 | #define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2 |
| 321 | #define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3 |
| 322 | |
| 323 | int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, |
| 324 | bool enable) |
| 325 | { |
| 326 | struct drm_device *dev = intel_encoder->base.dev; |
| 327 | u32 parm = 0; |
| 328 | u32 type = 0; |
| 329 | u32 port; |
| 330 | |
| 331 | /* don't care about old stuff for now */ |
| 332 | if (!HAS_DDI(dev)) |
| 333 | return 0; |
| 334 | |
| 335 | port = intel_ddi_get_encoder_port(intel_encoder); |
| 336 | if (port == PORT_E) { |
| 337 | port = 0; |
| 338 | } else { |
| 339 | parm |= 1 << port; |
| 340 | port++; |
| 341 | } |
| 342 | |
| 343 | if (!enable) |
| 344 | parm |= 4 << 8; |
| 345 | |
| 346 | switch (intel_encoder->type) { |
| 347 | case INTEL_OUTPUT_ANALOG: |
| 348 | type = DISPLAY_TYPE_CRT; |
| 349 | break; |
| 350 | case INTEL_OUTPUT_UNKNOWN: |
| 351 | case INTEL_OUTPUT_DISPLAYPORT: |
| 352 | case INTEL_OUTPUT_HDMI: |
| 353 | type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL; |
| 354 | break; |
| 355 | case INTEL_OUTPUT_EDP: |
| 356 | type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL; |
| 357 | break; |
| 358 | default: |
| 359 | WARN_ONCE(1, "unsupported intel_encoder type %d\n", |
| 360 | intel_encoder->type); |
| 361 | return -EINVAL; |
| 362 | } |
| 363 | |
| 364 | parm |= type << (16 + port * 3); |
| 365 | |
| 366 | return swsci(dev, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL); |
| 367 | } |
| 368 | |
Jani Nikula | ecbc5cf | 2013-08-30 19:40:31 +0300 | [diff] [blame] | 369 | static const struct { |
| 370 | pci_power_t pci_power_state; |
| 371 | u32 parm; |
| 372 | } power_state_map[] = { |
| 373 | { PCI_D0, 0x00 }, |
| 374 | { PCI_D1, 0x01 }, |
| 375 | { PCI_D2, 0x02 }, |
| 376 | { PCI_D3hot, 0x04 }, |
| 377 | { PCI_D3cold, 0x04 }, |
| 378 | }; |
| 379 | |
| 380 | int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state) |
| 381 | { |
| 382 | int i; |
| 383 | |
| 384 | if (!HAS_DDI(dev)) |
| 385 | return 0; |
| 386 | |
| 387 | for (i = 0; i < ARRAY_SIZE(power_state_map); i++) { |
| 388 | if (state == power_state_map[i].pci_power_state) |
| 389 | return swsci(dev, SWSCI_SBCB_ADAPTER_POWER_STATE, |
| 390 | power_state_map[i].parm, NULL); |
| 391 | } |
| 392 | |
| 393 | return -EINVAL; |
| 394 | } |
| 395 | |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 396 | static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) |
| 397 | { |
| 398 | struct drm_i915_private *dev_priv = dev->dev_private; |
Jesse Barnes | 752aa88 | 2013-10-31 18:55:49 +0200 | [diff] [blame] | 399 | struct drm_encoder *encoder; |
| 400 | struct drm_connector *connector; |
| 401 | struct intel_connector *intel_connector = NULL; |
| 402 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[0]; |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 403 | struct opregion_asle __iomem *asle = dev_priv->opregion.asle; |
Jesse Barnes | 752aa88 | 2013-10-31 18:55:49 +0200 | [diff] [blame] | 404 | u32 ret = 0; |
| 405 | bool found = false; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 406 | |
Jani Nikula | 749052f | 2012-10-01 14:25:30 +0300 | [diff] [blame] | 407 | DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); |
| 408 | |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 409 | if (!(bclp & ASLE_BCLP_VALID)) |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 410 | return ASLC_BACKLIGHT_FAILED; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 411 | |
| 412 | bclp &= ASLE_BCLP_MSK; |
Chris Wilson | a957355 | 2010-08-22 13:18:16 +0100 | [diff] [blame] | 413 | if (bclp > 255) |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 414 | return ASLC_BACKLIGHT_FAILED; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 415 | |
Jesse Barnes | 752aa88 | 2013-10-31 18:55:49 +0200 | [diff] [blame] | 416 | mutex_lock(&dev->mode_config.mutex); |
| 417 | /* |
| 418 | * Could match the OpRegion connector here instead, but we'd also need |
| 419 | * to verify the connector could handle a backlight call. |
| 420 | */ |
| 421 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
| 422 | if (encoder->crtc == crtc) { |
| 423 | found = true; |
| 424 | break; |
| 425 | } |
| 426 | |
| 427 | if (!found) { |
| 428 | ret = ASLC_BACKLIGHT_FAILED; |
| 429 | goto out; |
| 430 | } |
| 431 | |
| 432 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
| 433 | if (connector->encoder == encoder) |
| 434 | intel_connector = to_intel_connector(connector); |
| 435 | |
| 436 | if (!intel_connector) { |
| 437 | ret = ASLC_BACKLIGHT_FAILED; |
| 438 | goto out; |
| 439 | } |
| 440 | |
Chris Wilson | 540b5d0 | 2013-10-13 12:56:31 +0100 | [diff] [blame] | 441 | DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp); |
Jesse Barnes | 752aa88 | 2013-10-31 18:55:49 +0200 | [diff] [blame] | 442 | intel_panel_set_backlight(intel_connector, bclp, 255); |
Jani Nikula | cac6a5a | 2013-08-23 10:50:39 +0300 | [diff] [blame] | 443 | iowrite32(DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID, &asle->cblv); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 444 | |
Jesse Barnes | 752aa88 | 2013-10-31 18:55:49 +0200 | [diff] [blame] | 445 | out: |
| 446 | mutex_unlock(&dev->mode_config.mutex); |
| 447 | |
| 448 | return ret; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 449 | } |
| 450 | |
| 451 | static u32 asle_set_als_illum(struct drm_device *dev, u32 alsi) |
| 452 | { |
| 453 | /* alsi is the current ALS reading in lux. 0 indicates below sensor |
| 454 | range, 0xffff indicates above sensor range. 1-0xfffe are valid */ |
Jani Nikula | e93d440 | 2013-04-12 15:20:57 +0300 | [diff] [blame] | 455 | DRM_DEBUG_DRIVER("Illum is not supported\n"); |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 456 | return ASLC_ALS_ILLUM_FAILED; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 457 | } |
| 458 | |
| 459 | static u32 asle_set_pwm_freq(struct drm_device *dev, u32 pfmb) |
| 460 | { |
Jani Nikula | e93d440 | 2013-04-12 15:20:57 +0300 | [diff] [blame] | 461 | DRM_DEBUG_DRIVER("PWM freq is not supported\n"); |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 462 | return ASLC_PWM_FREQ_FAILED; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 463 | } |
| 464 | |
| 465 | static u32 asle_set_pfit(struct drm_device *dev, u32 pfit) |
| 466 | { |
| 467 | /* Panel fitting is currently controlled by the X code, so this is a |
| 468 | noop until modesetting support works fully */ |
Jani Nikula | e93d440 | 2013-04-12 15:20:57 +0300 | [diff] [blame] | 469 | DRM_DEBUG_DRIVER("Pfit is not supported\n"); |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 470 | return ASLC_PFIT_FAILED; |
| 471 | } |
| 472 | |
| 473 | static u32 asle_set_supported_rotation_angles(struct drm_device *dev, u32 srot) |
| 474 | { |
| 475 | DRM_DEBUG_DRIVER("SROT is not supported\n"); |
| 476 | return ASLC_ROTATION_ANGLES_FAILED; |
| 477 | } |
| 478 | |
| 479 | static u32 asle_set_button_array(struct drm_device *dev, u32 iuer) |
| 480 | { |
| 481 | if (!iuer) |
| 482 | DRM_DEBUG_DRIVER("Button array event is not supported (nothing)\n"); |
| 483 | if (iuer & ASLE_IUER_ROTATION_LOCK_BTN) |
| 484 | DRM_DEBUG_DRIVER("Button array event is not supported (rotation lock)\n"); |
| 485 | if (iuer & ASLE_IUER_VOLUME_DOWN_BTN) |
| 486 | DRM_DEBUG_DRIVER("Button array event is not supported (volume down)\n"); |
| 487 | if (iuer & ASLE_IUER_VOLUME_UP_BTN) |
| 488 | DRM_DEBUG_DRIVER("Button array event is not supported (volume up)\n"); |
| 489 | if (iuer & ASLE_IUER_WINDOWS_BTN) |
| 490 | DRM_DEBUG_DRIVER("Button array event is not supported (windows)\n"); |
| 491 | if (iuer & ASLE_IUER_POWER_BTN) |
| 492 | DRM_DEBUG_DRIVER("Button array event is not supported (power)\n"); |
| 493 | |
| 494 | return ASLC_BUTTON_ARRAY_FAILED; |
| 495 | } |
| 496 | |
| 497 | static u32 asle_set_convertible(struct drm_device *dev, u32 iuer) |
| 498 | { |
| 499 | if (iuer & ASLE_IUER_CONVERTIBLE) |
| 500 | DRM_DEBUG_DRIVER("Convertible is not supported (clamshell)\n"); |
| 501 | else |
| 502 | DRM_DEBUG_DRIVER("Convertible is not supported (slate)\n"); |
| 503 | |
| 504 | return ASLC_CONVERTIBLE_FAILED; |
| 505 | } |
| 506 | |
| 507 | static u32 asle_set_docking(struct drm_device *dev, u32 iuer) |
| 508 | { |
| 509 | if (iuer & ASLE_IUER_DOCKING) |
| 510 | DRM_DEBUG_DRIVER("Docking is not supported (docked)\n"); |
| 511 | else |
| 512 | DRM_DEBUG_DRIVER("Docking is not supported (undocked)\n"); |
| 513 | |
| 514 | return ASLC_DOCKING_FAILED; |
| 515 | } |
| 516 | |
| 517 | static u32 asle_isct_state(struct drm_device *dev) |
| 518 | { |
| 519 | DRM_DEBUG_DRIVER("ISCT is not supported\n"); |
| 520 | return ASLC_ISCT_STATE_FAILED; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 521 | } |
| 522 | |
Jani Nikula | 91a60f2 | 2013-10-31 18:55:48 +0200 | [diff] [blame] | 523 | static void asle_work(struct work_struct *work) |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 524 | { |
Jani Nikula | 91a60f2 | 2013-10-31 18:55:48 +0200 | [diff] [blame] | 525 | struct intel_opregion *opregion = |
| 526 | container_of(work, struct intel_opregion, asle_work); |
| 527 | struct drm_i915_private *dev_priv = |
| 528 | container_of(opregion, struct drm_i915_private, opregion); |
| 529 | struct drm_device *dev = dev_priv->dev; |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 530 | struct opregion_asle __iomem *asle = dev_priv->opregion.asle; |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 531 | u32 aslc_stat = 0; |
| 532 | u32 aslc_req; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 533 | |
| 534 | if (!asle) |
| 535 | return; |
| 536 | |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 537 | aslc_req = ioread32(&asle->aslc); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 538 | |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 539 | if (!(aslc_req & ASLC_REQ_MSK)) { |
| 540 | DRM_DEBUG_DRIVER("No request on ASLC interrupt 0x%08x\n", |
| 541 | aslc_req); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 542 | return; |
| 543 | } |
| 544 | |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 545 | if (aslc_req & ASLC_SET_ALS_ILLUM) |
| 546 | aslc_stat |= asle_set_als_illum(dev, ioread32(&asle->alsi)); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 547 | |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 548 | if (aslc_req & ASLC_SET_BACKLIGHT) |
| 549 | aslc_stat |= asle_set_backlight(dev, ioread32(&asle->bclp)); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 550 | |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 551 | if (aslc_req & ASLC_SET_PFIT) |
| 552 | aslc_stat |= asle_set_pfit(dev, ioread32(&asle->pfit)); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 553 | |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 554 | if (aslc_req & ASLC_SET_PWM_FREQ) |
| 555 | aslc_stat |= asle_set_pwm_freq(dev, ioread32(&asle->pfmb)); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 556 | |
Paulo Zanoni | 507c1a4 | 2013-09-17 11:14:11 -0300 | [diff] [blame] | 557 | if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES) |
| 558 | aslc_stat |= asle_set_supported_rotation_angles(dev, |
| 559 | ioread32(&asle->srot)); |
| 560 | |
| 561 | if (aslc_req & ASLC_BUTTON_ARRAY) |
| 562 | aslc_stat |= asle_set_button_array(dev, ioread32(&asle->iuer)); |
| 563 | |
| 564 | if (aslc_req & ASLC_CONVERTIBLE_INDICATOR) |
| 565 | aslc_stat |= asle_set_convertible(dev, ioread32(&asle->iuer)); |
| 566 | |
| 567 | if (aslc_req & ASLC_DOCKING_INDICATOR) |
| 568 | aslc_stat |= asle_set_docking(dev, ioread32(&asle->iuer)); |
| 569 | |
| 570 | if (aslc_req & ASLC_ISCT_STATE_CHANGE) |
| 571 | aslc_stat |= asle_isct_state(dev); |
| 572 | |
| 573 | iowrite32(aslc_stat, &asle->aslc); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 574 | } |
| 575 | |
Jani Nikula | 91a60f2 | 2013-10-31 18:55:48 +0200 | [diff] [blame] | 576 | void intel_opregion_asle_intr(struct drm_device *dev) |
| 577 | { |
| 578 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 579 | |
| 580 | if (dev_priv->opregion.asle) |
| 581 | schedule_work(&dev_priv->opregion.asle_work); |
| 582 | } |
| 583 | |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 584 | #define ACPI_EV_DISPLAY_SWITCH (1<<0) |
| 585 | #define ACPI_EV_LID (1<<1) |
| 586 | #define ACPI_EV_DOCK (1<<2) |
| 587 | |
| 588 | static struct intel_opregion *system_opregion; |
| 589 | |
Hannes Eder | b358d0a | 2008-12-18 21:18:47 +0100 | [diff] [blame] | 590 | static int intel_opregion_video_event(struct notifier_block *nb, |
| 591 | unsigned long val, void *data) |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 592 | { |
| 593 | /* The only video events relevant to opregion are 0x80. These indicate |
| 594 | either a docking event, lid switch or display switch request. In |
| 595 | Linux, these are handled by the dock, button and video drivers. |
Matthew Garrett | f5a3d0c | 2011-07-12 18:30:52 -0400 | [diff] [blame] | 596 | */ |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 597 | |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 598 | struct opregion_acpi __iomem *acpi; |
Matthew Garrett | f5a3d0c | 2011-07-12 18:30:52 -0400 | [diff] [blame] | 599 | struct acpi_bus_event *event = data; |
| 600 | int ret = NOTIFY_OK; |
| 601 | |
| 602 | if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) |
| 603 | return NOTIFY_DONE; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 604 | |
| 605 | if (!system_opregion) |
| 606 | return NOTIFY_DONE; |
| 607 | |
| 608 | acpi = system_opregion->acpi; |
Matthew Garrett | f5a3d0c | 2011-07-12 18:30:52 -0400 | [diff] [blame] | 609 | |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 610 | if (event->type == 0x80 && |
| 611 | (ioread32(&acpi->cevt) & 1) == 0) |
Matthew Garrett | f5a3d0c | 2011-07-12 18:30:52 -0400 | [diff] [blame] | 612 | ret = NOTIFY_BAD; |
| 613 | |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 614 | iowrite32(0, &acpi->csts); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 615 | |
Matthew Garrett | f5a3d0c | 2011-07-12 18:30:52 -0400 | [diff] [blame] | 616 | return ret; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 617 | } |
| 618 | |
| 619 | static struct notifier_block intel_opregion_notifier = { |
| 620 | .notifier_call = intel_opregion_video_event, |
| 621 | }; |
| 622 | |
Matthew Garrett | 74a365b | 2009-03-19 21:35:39 +0000 | [diff] [blame] | 623 | /* |
| 624 | * Initialise the DIDL field in opregion. This passes a list of devices to |
| 625 | * the firmware. Values are defined by section B.4.2 of the ACPI specification |
| 626 | * (version 3) |
| 627 | */ |
| 628 | |
| 629 | static void intel_didl_outputs(struct drm_device *dev) |
| 630 | { |
| 631 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 632 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 633 | struct drm_connector *connector; |
Zhang Rui | 3143751 | 2010-03-29 15:12:16 +0800 | [diff] [blame] | 634 | acpi_handle handle; |
| 635 | struct acpi_device *acpi_dev, *acpi_cdev, *acpi_video_bus = NULL; |
| 636 | unsigned long long device_id; |
| 637 | acpi_status status; |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 638 | u32 temp; |
Matthew Garrett | 74a365b | 2009-03-19 21:35:39 +0000 | [diff] [blame] | 639 | int i = 0; |
| 640 | |
Rafael J. Wysocki | 3a83f99 | 2013-11-14 23:17:21 +0100 | [diff] [blame] | 641 | handle = ACPI_HANDLE(&dev->pdev->dev); |
Yasuaki Ishimatsu | 7d37bea | 2013-02-01 10:14:20 +0900 | [diff] [blame] | 642 | if (!handle || acpi_bus_get_device(handle, &acpi_dev)) |
Zhang Rui | 3143751 | 2010-03-29 15:12:16 +0800 | [diff] [blame] | 643 | return; |
| 644 | |
Toshi Kani | d4e1a69 | 2013-03-04 21:30:41 +0000 | [diff] [blame] | 645 | if (acpi_is_video_device(handle)) |
Zhang Rui | 3143751 | 2010-03-29 15:12:16 +0800 | [diff] [blame] | 646 | acpi_video_bus = acpi_dev; |
| 647 | else { |
| 648 | list_for_each_entry(acpi_cdev, &acpi_dev->children, node) { |
Toshi Kani | d4e1a69 | 2013-03-04 21:30:41 +0000 | [diff] [blame] | 649 | if (acpi_is_video_device(acpi_cdev->handle)) { |
Zhang Rui | 3143751 | 2010-03-29 15:12:16 +0800 | [diff] [blame] | 650 | acpi_video_bus = acpi_cdev; |
| 651 | break; |
| 652 | } |
| 653 | } |
| 654 | } |
| 655 | |
| 656 | if (!acpi_video_bus) { |
Joe Perches | a70491c | 2012-03-18 13:00:11 -0700 | [diff] [blame] | 657 | pr_warn("No ACPI video bus found\n"); |
Zhang Rui | 3143751 | 2010-03-29 15:12:16 +0800 | [diff] [blame] | 658 | return; |
| 659 | } |
| 660 | |
| 661 | list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) { |
| 662 | if (i >= 8) { |
Daniel Vetter | 0f4f7b5 | 2013-06-24 18:32:36 +0200 | [diff] [blame] | 663 | dev_dbg(&dev->pdev->dev, |
| 664 | "More than 8 outputs detected via ACPI\n"); |
Zhang Rui | 3143751 | 2010-03-29 15:12:16 +0800 | [diff] [blame] | 665 | return; |
| 666 | } |
| 667 | status = |
| 668 | acpi_evaluate_integer(acpi_cdev->handle, "_ADR", |
| 669 | NULL, &device_id); |
| 670 | if (ACPI_SUCCESS(status)) { |
| 671 | if (!device_id) |
| 672 | goto blind_set; |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 673 | iowrite32((u32)(device_id & 0x0f0f), |
| 674 | &opregion->acpi->didl[i]); |
Zhang Rui | 3143751 | 2010-03-29 15:12:16 +0800 | [diff] [blame] | 675 | i++; |
| 676 | } |
| 677 | } |
| 678 | |
| 679 | end: |
| 680 | /* If fewer than 8 outputs, the list must be null terminated */ |
| 681 | if (i < 8) |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 682 | iowrite32(0, &opregion->acpi->didl[i]); |
Zhang Rui | 3143751 | 2010-03-29 15:12:16 +0800 | [diff] [blame] | 683 | return; |
| 684 | |
| 685 | blind_set: |
| 686 | i = 0; |
Matthew Garrett | 74a365b | 2009-03-19 21:35:39 +0000 | [diff] [blame] | 687 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 688 | int output_type = ACPI_OTHER_OUTPUT; |
| 689 | if (i >= 8) { |
Daniel Vetter | 0f4f7b5 | 2013-06-24 18:32:36 +0200 | [diff] [blame] | 690 | dev_dbg(&dev->pdev->dev, |
| 691 | "More than 8 outputs in connector list\n"); |
Matthew Garrett | 74a365b | 2009-03-19 21:35:39 +0000 | [diff] [blame] | 692 | return; |
| 693 | } |
| 694 | switch (connector->connector_type) { |
| 695 | case DRM_MODE_CONNECTOR_VGA: |
| 696 | case DRM_MODE_CONNECTOR_DVIA: |
| 697 | output_type = ACPI_VGA_OUTPUT; |
| 698 | break; |
| 699 | case DRM_MODE_CONNECTOR_Composite: |
| 700 | case DRM_MODE_CONNECTOR_SVIDEO: |
| 701 | case DRM_MODE_CONNECTOR_Component: |
| 702 | case DRM_MODE_CONNECTOR_9PinDIN: |
| 703 | output_type = ACPI_TV_OUTPUT; |
| 704 | break; |
| 705 | case DRM_MODE_CONNECTOR_DVII: |
| 706 | case DRM_MODE_CONNECTOR_DVID: |
| 707 | case DRM_MODE_CONNECTOR_DisplayPort: |
| 708 | case DRM_MODE_CONNECTOR_HDMIA: |
| 709 | case DRM_MODE_CONNECTOR_HDMIB: |
| 710 | output_type = ACPI_DIGITAL_OUTPUT; |
| 711 | break; |
| 712 | case DRM_MODE_CONNECTOR_LVDS: |
| 713 | output_type = ACPI_LVDS_OUTPUT; |
| 714 | break; |
| 715 | } |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 716 | temp = ioread32(&opregion->acpi->didl[i]); |
| 717 | iowrite32(temp | (1<<31) | output_type | i, |
| 718 | &opregion->acpi->didl[i]); |
Matthew Garrett | 74a365b | 2009-03-19 21:35:39 +0000 | [diff] [blame] | 719 | i++; |
| 720 | } |
Zhang Rui | 3143751 | 2010-03-29 15:12:16 +0800 | [diff] [blame] | 721 | goto end; |
Matthew Garrett | 74a365b | 2009-03-19 21:35:39 +0000 | [diff] [blame] | 722 | } |
| 723 | |
Lekensteyn | d627b62 | 2012-06-26 00:36:24 +0200 | [diff] [blame] | 724 | static void intel_setup_cadls(struct drm_device *dev) |
| 725 | { |
| 726 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 727 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 728 | int i = 0; |
| 729 | u32 disp_id; |
| 730 | |
| 731 | /* Initialize the CADL field by duplicating the DIDL values. |
| 732 | * Technically, this is not always correct as display outputs may exist, |
| 733 | * but not active. This initialization is necessary for some Clevo |
| 734 | * laptops that check this field before processing the brightness and |
| 735 | * display switching hotkeys. Just like DIDL, CADL is NULL-terminated if |
| 736 | * there are less than eight devices. */ |
| 737 | do { |
| 738 | disp_id = ioread32(&opregion->acpi->didl[i]); |
| 739 | iowrite32(disp_id, &opregion->acpi->cadl[i]); |
| 740 | } while (++i < 8 && disp_id != 0); |
| 741 | } |
| 742 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 743 | void intel_opregion_init(struct drm_device *dev) |
| 744 | { |
| 745 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 746 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 747 | |
| 748 | if (!opregion->header) |
| 749 | return; |
| 750 | |
| 751 | if (opregion->acpi) { |
Lekensteyn | d627b62 | 2012-06-26 00:36:24 +0200 | [diff] [blame] | 752 | if (drm_core_check_feature(dev, DRIVER_MODESET)) { |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 753 | intel_didl_outputs(dev); |
Lekensteyn | d627b62 | 2012-06-26 00:36:24 +0200 | [diff] [blame] | 754 | intel_setup_cadls(dev); |
| 755 | } |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 756 | |
| 757 | /* Notify BIOS we are ready to handle ACPI video ext notifs. |
| 758 | * Right now, all the events are handled by the ACPI video module. |
| 759 | * We don't actually need to do anything with them. */ |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 760 | iowrite32(0, &opregion->acpi->csts); |
| 761 | iowrite32(1, &opregion->acpi->drdy); |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 762 | |
| 763 | system_opregion = opregion; |
| 764 | register_acpi_notifier(&intel_opregion_notifier); |
| 765 | } |
| 766 | |
Jani Nikula | 68bca4b | 2013-04-29 13:02:51 +0300 | [diff] [blame] | 767 | if (opregion->asle) { |
Jani Nikula | 68bca4b | 2013-04-29 13:02:51 +0300 | [diff] [blame] | 768 | iowrite32(ASLE_TCHE_BLC_EN, &opregion->asle->tche); |
| 769 | iowrite32(ASLE_ARDY_READY, &opregion->asle->ardy); |
| 770 | } |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 771 | } |
| 772 | |
| 773 | void intel_opregion_fini(struct drm_device *dev) |
| 774 | { |
| 775 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 776 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 777 | |
| 778 | if (!opregion->header) |
| 779 | return; |
| 780 | |
Jani Nikula | 68bca4b | 2013-04-29 13:02:51 +0300 | [diff] [blame] | 781 | if (opregion->asle) |
| 782 | iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy); |
| 783 | |
Jani Nikula | 91a60f2 | 2013-10-31 18:55:48 +0200 | [diff] [blame] | 784 | cancel_work_sync(&dev_priv->opregion.asle_work); |
| 785 | |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 786 | if (opregion->acpi) { |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 787 | iowrite32(0, &opregion->acpi->drdy); |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 788 | |
| 789 | system_opregion = NULL; |
| 790 | unregister_acpi_notifier(&intel_opregion_notifier); |
| 791 | } |
| 792 | |
| 793 | /* just clear all opregion memory pointers now */ |
| 794 | iounmap(opregion->header); |
| 795 | opregion->header = NULL; |
| 796 | opregion->acpi = NULL; |
| 797 | opregion->swsci = NULL; |
| 798 | opregion->asle = NULL; |
| 799 | opregion->vbt = NULL; |
Paulo Zanoni | 794a79a | 2013-09-12 13:58:20 -0300 | [diff] [blame] | 800 | opregion->lid_state = NULL; |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 801 | } |
Jani Nikula | ebde53c | 2013-09-02 10:38:59 +0300 | [diff] [blame] | 802 | |
| 803 | static void swsci_setup(struct drm_device *dev) |
| 804 | { |
| 805 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 806 | struct intel_opregion *opregion = &dev_priv->opregion; |
| 807 | bool requested_callbacks = false; |
| 808 | u32 tmp; |
| 809 | |
| 810 | /* Sub-function code 0 is okay, let's allow them. */ |
| 811 | opregion->swsci_gbda_sub_functions = 1; |
| 812 | opregion->swsci_sbcb_sub_functions = 1; |
| 813 | |
| 814 | /* We use GBDA to ask for supported GBDA calls. */ |
| 815 | if (swsci(dev, SWSCI_GBDA_SUPPORTED_CALLS, 0, &tmp) == 0) { |
| 816 | /* make the bits match the sub-function codes */ |
| 817 | tmp <<= 1; |
| 818 | opregion->swsci_gbda_sub_functions |= tmp; |
| 819 | } |
| 820 | |
| 821 | /* |
| 822 | * We also use GBDA to ask for _requested_ SBCB callbacks. The driver |
| 823 | * must not call interfaces that are not specifically requested by the |
| 824 | * bios. |
| 825 | */ |
| 826 | if (swsci(dev, SWSCI_GBDA_REQUESTED_CALLBACKS, 0, &tmp) == 0) { |
| 827 | /* here, the bits already match sub-function codes */ |
| 828 | opregion->swsci_sbcb_sub_functions |= tmp; |
| 829 | requested_callbacks = true; |
| 830 | } |
| 831 | |
| 832 | /* |
| 833 | * But we use SBCB to ask for _supported_ SBCB calls. This does not mean |
| 834 | * the callback is _requested_. But we still can't call interfaces that |
| 835 | * are not requested. |
| 836 | */ |
| 837 | if (swsci(dev, SWSCI_SBCB_SUPPORTED_CALLBACKS, 0, &tmp) == 0) { |
| 838 | /* make the bits match the sub-function codes */ |
| 839 | u32 low = tmp & 0x7ff; |
| 840 | u32 high = tmp & ~0xfff; /* bit 11 is reserved */ |
| 841 | tmp = (high << 4) | (low << 1) | 1; |
| 842 | |
| 843 | /* best guess what to do with supported wrt requested */ |
| 844 | if (requested_callbacks) { |
| 845 | u32 req = opregion->swsci_sbcb_sub_functions; |
| 846 | if ((req & tmp) != req) |
| 847 | DRM_DEBUG_DRIVER("SWSCI BIOS requested (%08x) SBCB callbacks that are not supported (%08x)\n", req, tmp); |
| 848 | /* XXX: for now, trust the requested callbacks */ |
| 849 | /* opregion->swsci_sbcb_sub_functions &= tmp; */ |
| 850 | } else { |
| 851 | opregion->swsci_sbcb_sub_functions |= tmp; |
| 852 | } |
| 853 | } |
| 854 | |
| 855 | DRM_DEBUG_DRIVER("SWSCI GBDA callbacks %08x, SBCB callbacks %08x\n", |
| 856 | opregion->swsci_gbda_sub_functions, |
| 857 | opregion->swsci_sbcb_sub_functions); |
| 858 | } |
| 859 | #else /* CONFIG_ACPI */ |
| 860 | static inline void swsci_setup(struct drm_device *dev) {} |
| 861 | #endif /* CONFIG_ACPI */ |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 862 | |
| 863 | int intel_opregion_setup(struct drm_device *dev) |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 864 | { |
| 865 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 866 | struct intel_opregion *opregion = &dev_priv->opregion; |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 867 | void __iomem *base; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 868 | u32 asls, mboxes; |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 869 | char buf[sizeof(OPREGION_SIGNATURE)]; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 870 | int err = 0; |
| 871 | |
| 872 | pci_read_config_dword(dev->pdev, PCI_ASLS, &asls); |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 873 | DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 874 | if (asls == 0) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 875 | DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n"); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 876 | return -ENOTSUPP; |
| 877 | } |
| 878 | |
Jani Nikula | 1dca220 | 2013-11-08 10:10:31 +0200 | [diff] [blame] | 879 | #ifdef CONFIG_ACPI |
Jani Nikula | 91a60f2 | 2013-10-31 18:55:48 +0200 | [diff] [blame] | 880 | INIT_WORK(&opregion->asle_work, asle_work); |
Jani Nikula | 1dca220 | 2013-11-08 10:10:31 +0200 | [diff] [blame] | 881 | #endif |
Jani Nikula | 91a60f2 | 2013-10-31 18:55:48 +0200 | [diff] [blame] | 882 | |
Michael Karcher | b705120 | 2011-01-23 18:17:17 +0000 | [diff] [blame] | 883 | base = acpi_os_ioremap(asls, OPREGION_SIZE); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 884 | if (!base) |
| 885 | return -ENOMEM; |
| 886 | |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 887 | memcpy_fromio(buf, base, sizeof(buf)); |
| 888 | |
| 889 | if (memcmp(buf, OPREGION_SIGNATURE, 16)) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 890 | DRM_DEBUG_DRIVER("opregion signature mismatch\n"); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 891 | err = -EINVAL; |
| 892 | goto err_out; |
| 893 | } |
Chris Wilson | 44834a6 | 2010-08-19 16:09:23 +0100 | [diff] [blame] | 894 | opregion->header = base; |
| 895 | opregion->vbt = base + OPREGION_VBT_OFFSET; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 896 | |
Chris Wilson | 82d3c90 | 2011-02-24 18:13:42 +0000 | [diff] [blame] | 897 | opregion->lid_state = base + ACPI_CLID; |
Chris Wilson | 01fe9db | 2011-01-16 19:37:30 +0000 | [diff] [blame] | 898 | |
Ben Widawsky | 5bc4418 | 2012-04-16 14:07:42 -0700 | [diff] [blame] | 899 | mboxes = ioread32(&opregion->header->mboxes); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 900 | if (mboxes & MBOX_ACPI) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 901 | DRM_DEBUG_DRIVER("Public ACPI methods supported\n"); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 902 | opregion->acpi = base + OPREGION_ACPI_OFFSET; |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 903 | } |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 904 | |
| 905 | if (mboxes & MBOX_SWSCI) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 906 | DRM_DEBUG_DRIVER("SWSCI supported\n"); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 907 | opregion->swsci = base + OPREGION_SWSCI_OFFSET; |
Jani Nikula | ebde53c | 2013-09-02 10:38:59 +0300 | [diff] [blame] | 908 | swsci_setup(dev); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 909 | } |
| 910 | if (mboxes & MBOX_ASLE) { |
Zhao Yakui | 44d98a6 | 2009-10-09 11:39:40 +0800 | [diff] [blame] | 911 | DRM_DEBUG_DRIVER("ASLE supported\n"); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 912 | opregion->asle = base + OPREGION_ASLE_OFFSET; |
Jani Nikula | 68bca4b | 2013-04-29 13:02:51 +0300 | [diff] [blame] | 913 | |
| 914 | iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 915 | } |
| 916 | |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 917 | return 0; |
| 918 | |
| 919 | err_out: |
Christoph Fritz | 30c5666 | 2010-11-01 11:32:22 +0100 | [diff] [blame] | 920 | iounmap(base); |
Matthew Garrett | 8ee1c3d | 2008-08-05 19:37:25 +0100 | [diff] [blame] | 921 | return err; |
| 922 | } |