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Rev | Author | Line No. | Line |
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2327 | Serge | 1 | /* |
2 | * Copyright 2008 Intel Corporation |
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3 | * Copyright 2008 Red Hat |
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4 | * |
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5 | * Permission is hereby granted, free of charge, to any person obtaining |
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6 | * a copy of this software and associated documentation files (the |
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7 | * "Software"), to deal in the Software without restriction, including |
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8 | * without limitation the rights to use, copy, modify, merge, publish, |
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9 | * distribute, sub license, and/or sell copies of the Software, and to |
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10 | * permit persons to whom the Software is furnished to do so, subject to |
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11 | * the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice (including the |
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14 | * next paragraph) shall be included in all copies or substantial |
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15 | * portions of the Software. |
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16 | * |
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17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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20 | * NON-INFRINGEMENT. IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE |
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21 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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22 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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23 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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24 | * SOFTWARE. |
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25 | * |
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26 | */ |
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27 | |||
5060 | serge | 28 | #include |
29 | #include |
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3031 | serge | 30 | |
31 | #include |
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32 | #include |
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2327 | Serge | 33 | #include "i915_drv.h" |
34 | #include "intel_drv.h" |
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35 | |||
6084 | serge | 36 | #define PCI_ASLE 0xe4 |
37 | #define PCI_ASLS 0xfc |
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4560 | Serge | 38 | #define PCI_SWSCI 0xe8 |
39 | #define PCI_SWSCI_SCISEL (1 << 15) |
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40 | #define PCI_SWSCI_GSSCIE (1 << 0) |
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2327 | Serge | 41 | |
42 | #define OPREGION_HEADER_OFFSET 0 |
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43 | #define OPREGION_ACPI_OFFSET 0x100 |
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44 | #define ACPI_CLID 0x01ac /* current lid state indicator */ |
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45 | #define ACPI_CDCK 0x01b0 /* current docking state indicator */ |
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46 | #define OPREGION_SWSCI_OFFSET 0x200 |
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47 | #define OPREGION_ASLE_OFFSET 0x300 |
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48 | #define OPREGION_VBT_OFFSET 0x400 |
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49 | |||
50 | #define OPREGION_SIGNATURE "IntelGraphicsMem" |
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51 | #define MBOX_ACPI (1<<0) |
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52 | #define MBOX_SWSCI (1<<1) |
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53 | #define MBOX_ASLE (1<<2) |
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6084 | serge | 54 | #define MBOX_ASLE_EXT (1<<4) |
2327 | Serge | 55 | |
56 | struct opregion_header { |
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6084 | serge | 57 | u8 signature[16]; |
58 | u32 size; |
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59 | u32 opregion_ver; |
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60 | u8 bios_ver[32]; |
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61 | u8 vbios_ver[16]; |
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62 | u8 driver_ver[16]; |
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63 | u32 mboxes; |
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64 | u32 driver_model; |
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65 | u32 pcon; |
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66 | u8 dver[32]; |
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67 | u8 rsvd[124]; |
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4560 | Serge | 68 | } __packed; |
2327 | Serge | 69 | |
70 | /* OpRegion mailbox #1: public ACPI methods */ |
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71 | struct opregion_acpi { |
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6084 | serge | 72 | u32 drdy; /* driver readiness */ |
73 | u32 csts; /* notification status */ |
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74 | u32 cevt; /* current event */ |
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75 | u8 rsvd1[20]; |
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76 | u32 didl[8]; /* supported display devices ID list */ |
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77 | u32 cpdl[8]; /* currently presented display list */ |
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78 | u32 cadl[8]; /* currently active display list */ |
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79 | u32 nadl[8]; /* next active devices list */ |
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80 | u32 aslp; /* ASL sleep time-out */ |
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81 | u32 tidx; /* toggle table index */ |
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82 | u32 chpd; /* current hotplug enable indicator */ |
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83 | u32 clid; /* current lid state*/ |
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84 | u32 cdck; /* current docking state */ |
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85 | u32 sxsw; /* Sx state resume */ |
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86 | u32 evts; /* ASL supported events */ |
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87 | u32 cnot; /* current OS notification */ |
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88 | u32 nrdy; /* driver status */ |
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89 | u32 did2[7]; /* extended supported display devices ID list */ |
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90 | u32 cpd2[7]; /* extended attached display devices list */ |
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91 | u8 rsvd2[4]; |
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4560 | Serge | 92 | } __packed; |
2327 | Serge | 93 | |
94 | /* OpRegion mailbox #2: SWSCI */ |
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95 | struct opregion_swsci { |
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6084 | serge | 96 | u32 scic; /* SWSCI command|status|data */ |
97 | u32 parm; /* command parameters */ |
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98 | u32 dslp; /* driver sleep time-out */ |
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99 | u8 rsvd[244]; |
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4560 | Serge | 100 | } __packed; |
2327 | Serge | 101 | |
102 | /* OpRegion mailbox #3: ASLE */ |
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103 | struct opregion_asle { |
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6084 | serge | 104 | u32 ardy; /* driver readiness */ |
105 | u32 aslc; /* ASLE interrupt command */ |
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106 | u32 tche; /* technology enabled indicator */ |
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107 | u32 alsi; /* current ALS illuminance reading */ |
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108 | u32 bclp; /* backlight brightness to set */ |
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109 | u32 pfit; /* panel fitting state */ |
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110 | u32 cblv; /* current brightness level */ |
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111 | u16 bclm[20]; /* backlight level duty cycle mapping table */ |
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112 | u32 cpfm; /* current panel fitting mode */ |
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113 | u32 epfm; /* enabled panel fitting modes */ |
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114 | u8 plut[74]; /* panel LUT and identifier */ |
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115 | u32 pfmb; /* PWM freq and min brightness */ |
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4560 | Serge | 116 | u32 cddv; /* color correction default values */ |
117 | u32 pcft; /* power conservation features */ |
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118 | u32 srot; /* supported rotation angles */ |
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119 | u32 iuer; /* IUER events */ |
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6084 | serge | 120 | u64 fdss; |
121 | u32 fdsp; |
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122 | u32 stat; |
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123 | u8 rsvd[70]; |
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4560 | Serge | 124 | } __packed; |
2327 | Serge | 125 | |
4104 | Serge | 126 | /* Driver readiness indicator */ |
127 | #define ASLE_ARDY_READY (1 << 0) |
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128 | #define ASLE_ARDY_NOT_READY (0 << 0) |
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129 | |||
4560 | Serge | 130 | /* ASLE Interrupt Command (ASLC) bits */ |
131 | #define ASLC_SET_ALS_ILLUM (1 << 0) |
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132 | #define ASLC_SET_BACKLIGHT (1 << 1) |
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133 | #define ASLC_SET_PFIT (1 << 2) |
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134 | #define ASLC_SET_PWM_FREQ (1 << 3) |
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135 | #define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4) |
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136 | #define ASLC_BUTTON_ARRAY (1 << 5) |
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137 | #define ASLC_CONVERTIBLE_INDICATOR (1 << 6) |
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138 | #define ASLC_DOCKING_INDICATOR (1 << 7) |
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139 | #define ASLC_ISCT_STATE_CHANGE (1 << 8) |
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140 | #define ASLC_REQ_MSK 0x1ff |
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141 | /* response bits */ |
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142 | #define ASLC_ALS_ILLUM_FAILED (1 << 10) |
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143 | #define ASLC_BACKLIGHT_FAILED (1 << 12) |
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144 | #define ASLC_PFIT_FAILED (1 << 14) |
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145 | #define ASLC_PWM_FREQ_FAILED (1 << 16) |
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146 | #define ASLC_ROTATION_ANGLES_FAILED (1 << 18) |
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147 | #define ASLC_BUTTON_ARRAY_FAILED (1 << 20) |
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148 | #define ASLC_CONVERTIBLE_FAILED (1 << 22) |
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149 | #define ASLC_DOCKING_FAILED (1 << 24) |
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150 | #define ASLC_ISCT_STATE_FAILED (1 << 26) |
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2327 | Serge | 151 | |
4104 | Serge | 152 | /* Technology enabled indicator */ |
153 | #define ASLE_TCHE_ALS_EN (1 << 0) |
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154 | #define ASLE_TCHE_BLC_EN (1 << 1) |
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155 | #define ASLE_TCHE_PFIT_EN (1 << 2) |
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156 | #define ASLE_TCHE_PFMB_EN (1 << 3) |
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157 | |||
2327 | Serge | 158 | /* ASLE backlight brightness to set */ |
159 | #define ASLE_BCLP_VALID (1<<31) |
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160 | #define ASLE_BCLP_MSK (~(1<<31)) |
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161 | |||
162 | /* ASLE panel fitting request */ |
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163 | #define ASLE_PFIT_VALID (1<<31) |
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164 | #define ASLE_PFIT_CENTER (1<<0) |
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165 | #define ASLE_PFIT_STRETCH_TEXT (1<<1) |
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166 | #define ASLE_PFIT_STRETCH_GFX (1<<2) |
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167 | |||
168 | /* PWM frequency and minimum brightness */ |
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169 | #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) |
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170 | #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) |
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171 | #define ASLE_PFMB_PWM_MASK (0x7ffffe00) |
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172 | #define ASLE_PFMB_PWM_VALID (1<<31) |
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173 | |||
174 | #define ASLE_CBLV_VALID (1<<31) |
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175 | |||
4560 | Serge | 176 | /* IUER */ |
177 | #define ASLE_IUER_DOCKING (1 << 7) |
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178 | #define ASLE_IUER_CONVERTIBLE (1 << 6) |
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179 | #define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4) |
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180 | #define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3) |
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181 | #define ASLE_IUER_VOLUME_UP_BTN (1 << 2) |
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182 | #define ASLE_IUER_WINDOWS_BTN (1 << 1) |
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183 | #define ASLE_IUER_POWER_BTN (1 << 0) |
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184 | |||
185 | /* Software System Control Interrupt (SWSCI) */ |
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186 | #define SWSCI_SCIC_INDICATOR (1 << 0) |
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187 | #define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1 |
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188 | #define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1) |
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189 | #define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8 |
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190 | #define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8) |
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191 | #define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8 |
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192 | #define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8) |
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193 | #define SWSCI_SCIC_EXIT_STATUS_SHIFT 5 |
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194 | #define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5) |
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195 | #define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1 |
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196 | |||
197 | #define SWSCI_FUNCTION_CODE(main, sub) \ |
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198 | ((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \ |
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199 | (sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT) |
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200 | |||
201 | /* SWSCI: Get BIOS Data (GBDA) */ |
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202 | #define SWSCI_GBDA 4 |
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203 | #define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0) |
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204 | #define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1) |
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205 | #define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4) |
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206 | #define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5) |
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207 | #define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6) |
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208 | #define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7) |
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209 | #define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10) |
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210 | |||
211 | /* SWSCI: System BIOS Callbacks (SBCB) */ |
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212 | #define SWSCI_SBCB 6 |
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213 | #define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0) |
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214 | #define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1) |
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215 | #define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3) |
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216 | #define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4) |
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217 | #define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5) |
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218 | #define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6) |
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219 | #define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7) |
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220 | #define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8) |
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221 | #define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9) |
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222 | #define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10) |
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223 | #define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11) |
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224 | #define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16) |
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225 | #define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17) |
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226 | #define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18) |
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227 | #define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19) |
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228 | #define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21) |
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229 | |||
2327 | Serge | 230 | #define ACPI_OTHER_OUTPUT (0<<8) |
231 | #define ACPI_VGA_OUTPUT (1<<8) |
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232 | #define ACPI_TV_OUTPUT (2<<8) |
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233 | #define ACPI_DIGITAL_OUTPUT (3<<8) |
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234 | #define ACPI_LVDS_OUTPUT (4<<8) |
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235 | |||
5060 | serge | 236 | #define MAX_DSLP 1500 |
237 | |||
2327 | Serge | 238 | #ifdef CONFIG_ACPI |
4560 | Serge | 239 | static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out) |
240 | { |
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241 | struct drm_i915_private *dev_priv = dev->dev_private; |
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6084 | serge | 242 | struct opregion_swsci *swsci = dev_priv->opregion.swsci; |
4560 | Serge | 243 | u32 main_function, sub_function, scic; |
244 | u16 pci_swsci; |
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245 | u32 dslp; |
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2327 | Serge | 246 | |
4560 | Serge | 247 | if (!swsci) |
248 | return -ENODEV; |
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249 | |||
250 | main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >> |
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251 | SWSCI_SCIC_MAIN_FUNCTION_SHIFT; |
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252 | sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >> |
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253 | SWSCI_SCIC_SUB_FUNCTION_SHIFT; |
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254 | |||
255 | /* Check if we can call the function. See swsci_setup for details. */ |
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256 | if (main_function == SWSCI_SBCB) { |
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257 | if ((dev_priv->opregion.swsci_sbcb_sub_functions & |
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258 | (1 << sub_function)) == 0) |
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259 | return -EINVAL; |
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260 | } else if (main_function == SWSCI_GBDA) { |
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261 | if ((dev_priv->opregion.swsci_gbda_sub_functions & |
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262 | (1 << sub_function)) == 0) |
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263 | return -EINVAL; |
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264 | } |
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265 | |||
266 | /* Driver sleep timeout in ms. */ |
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6084 | serge | 267 | dslp = swsci->dslp; |
4560 | Serge | 268 | if (!dslp) { |
269 | /* The spec says 2ms should be the default, but it's too small |
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270 | * for some machines. */ |
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271 | dslp = 50; |
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5060 | serge | 272 | } else if (dslp > MAX_DSLP) { |
4560 | Serge | 273 | /* Hey bios, trust must be earned. */ |
5060 | serge | 274 | DRM_INFO_ONCE("ACPI BIOS requests an excessive sleep of %u ms, " |
275 | "using %u ms instead\n", dslp, MAX_DSLP); |
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276 | dslp = MAX_DSLP; |
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4560 | Serge | 277 | } |
278 | |||
279 | /* The spec tells us to do this, but we are the only user... */ |
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6084 | serge | 280 | scic = swsci->scic; |
4560 | Serge | 281 | if (scic & SWSCI_SCIC_INDICATOR) { |
282 | DRM_DEBUG_DRIVER("SWSCI request already in progress\n"); |
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283 | return -EBUSY; |
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284 | } |
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285 | |||
286 | scic = function | SWSCI_SCIC_INDICATOR; |
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287 | |||
6084 | serge | 288 | swsci->parm = parm; |
289 | swsci->scic = scic; |
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4560 | Serge | 290 | |
291 | /* Ensure SCI event is selected and event trigger is cleared. */ |
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292 | pci_read_config_word(dev->pdev, PCI_SWSCI, &pci_swsci); |
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293 | if (!(pci_swsci & PCI_SWSCI_SCISEL) || (pci_swsci & PCI_SWSCI_GSSCIE)) { |
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294 | pci_swsci |= PCI_SWSCI_SCISEL; |
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295 | pci_swsci &= ~PCI_SWSCI_GSSCIE; |
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296 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
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297 | } |
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298 | |||
299 | /* Use event trigger to tell bios to check the mail. */ |
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300 | pci_swsci |= PCI_SWSCI_GSSCIE; |
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301 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
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302 | |||
303 | /* Poll for the result. */ |
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6084 | serge | 304 | #define C (((scic = swsci->scic) & SWSCI_SCIC_INDICATOR) == 0) |
4560 | Serge | 305 | if (wait_for(C, dslp)) { |
306 | DRM_DEBUG_DRIVER("SWSCI request timed out\n"); |
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307 | return -ETIMEDOUT; |
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308 | } |
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309 | |||
310 | scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >> |
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311 | SWSCI_SCIC_EXIT_STATUS_SHIFT; |
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312 | |||
313 | /* Note: scic == 0 is an error! */ |
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314 | if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) { |
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315 | DRM_DEBUG_DRIVER("SWSCI request error %u\n", scic); |
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316 | return -EIO; |
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317 | } |
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318 | |||
319 | if (parm_out) |
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6084 | serge | 320 | *parm_out = swsci->parm; |
4560 | Serge | 321 | |
322 | return 0; |
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323 | |||
324 | #undef C |
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325 | } |
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326 | |||
327 | #define DISPLAY_TYPE_CRT 0 |
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328 | #define DISPLAY_TYPE_TV 1 |
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329 | #define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2 |
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330 | #define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3 |
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331 | |||
332 | int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, |
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333 | bool enable) |
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334 | { |
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335 | struct drm_device *dev = intel_encoder->base.dev; |
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336 | u32 parm = 0; |
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337 | u32 type = 0; |
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338 | u32 port; |
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339 | |||
340 | /* don't care about old stuff for now */ |
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341 | if (!HAS_DDI(dev)) |
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342 | return 0; |
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343 | |||
6084 | serge | 344 | if (intel_encoder->type == INTEL_OUTPUT_DSI) |
4560 | Serge | 345 | port = 0; |
6084 | serge | 346 | else |
347 | port = intel_ddi_get_encoder_port(intel_encoder); |
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348 | |||
349 | if (port == PORT_E) { |
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350 | port = 0; |
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4560 | Serge | 351 | } else { |
352 | parm |= 1 << port; |
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353 | port++; |
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354 | } |
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355 | |||
356 | if (!enable) |
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357 | parm |= 4 << 8; |
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358 | |||
359 | switch (intel_encoder->type) { |
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360 | case INTEL_OUTPUT_ANALOG: |
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361 | type = DISPLAY_TYPE_CRT; |
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362 | break; |
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363 | case INTEL_OUTPUT_UNKNOWN: |
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364 | case INTEL_OUTPUT_DISPLAYPORT: |
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365 | case INTEL_OUTPUT_HDMI: |
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5060 | serge | 366 | case INTEL_OUTPUT_DP_MST: |
4560 | Serge | 367 | type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL; |
368 | break; |
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369 | case INTEL_OUTPUT_EDP: |
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6084 | serge | 370 | case INTEL_OUTPUT_DSI: |
4560 | Serge | 371 | type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL; |
372 | break; |
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373 | default: |
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374 | WARN_ONCE(1, "unsupported intel_encoder type %d\n", |
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375 | intel_encoder->type); |
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376 | return -EINVAL; |
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377 | } |
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378 | |||
379 | parm |= type << (16 + port * 3); |
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380 | |||
381 | return swsci(dev, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL); |
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382 | } |
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383 | |||
384 | static const struct { |
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385 | pci_power_t pci_power_state; |
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386 | u32 parm; |
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387 | } power_state_map[] = { |
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388 | { PCI_D0, 0x00 }, |
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389 | { PCI_D1, 0x01 }, |
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390 | { PCI_D2, 0x02 }, |
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391 | { PCI_D3hot, 0x04 }, |
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392 | { PCI_D3cold, 0x04 }, |
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393 | }; |
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394 | |||
395 | int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state) |
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396 | { |
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397 | int i; |
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398 | |||
399 | if (!HAS_DDI(dev)) |
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400 | return 0; |
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401 | |||
402 | for (i = 0; i < ARRAY_SIZE(power_state_map); i++) { |
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403 | if (state == power_state_map[i].pci_power_state) |
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404 | return swsci(dev, SWSCI_SBCB_ADAPTER_POWER_STATE, |
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405 | power_state_map[i].parm, NULL); |
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406 | } |
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407 | |||
408 | return -EINVAL; |
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409 | } |
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410 | |||
411 | static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) |
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412 | { |
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413 | struct drm_i915_private *dev_priv = dev->dev_private; |
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414 | struct intel_connector *intel_connector; |
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6084 | serge | 415 | struct opregion_asle *asle = dev_priv->opregion.asle; |
4560 | Serge | 416 | |
417 | DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); |
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418 | |||
6084 | serge | 419 | if (acpi_video_get_backlight_type() == acpi_backlight_native) { |
5060 | serge | 420 | DRM_DEBUG_KMS("opregion backlight request ignored\n"); |
421 | return 0; |
||
422 | } |
||
423 | |||
4560 | Serge | 424 | if (!(bclp & ASLE_BCLP_VALID)) |
425 | return ASLC_BACKLIGHT_FAILED; |
||
426 | |||
427 | bclp &= ASLE_BCLP_MSK; |
||
428 | if (bclp > 255) |
||
429 | return ASLC_BACKLIGHT_FAILED; |
||
430 | |||
5060 | serge | 431 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
4560 | Serge | 432 | |
433 | /* |
||
434 | * Update backlight on all connectors that support backlight (usually |
||
435 | * only one). |
||
436 | */ |
||
437 | DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp); |
||
438 | list_for_each_entry(intel_connector, &dev->mode_config.connector_list, base.head) |
||
5060 | serge | 439 | intel_panel_set_backlight_acpi(intel_connector, bclp, 255); |
6084 | serge | 440 | asle->cblv = DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID; |
4560 | Serge | 441 | |
5060 | serge | 442 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
4560 | Serge | 443 | |
444 | |||
445 | return 0; |
||
446 | } |
||
447 | |||
448 | static u32 asle_set_als_illum(struct drm_device *dev, u32 alsi) |
||
449 | { |
||
450 | /* alsi is the current ALS reading in lux. 0 indicates below sensor |
||
451 | range, 0xffff indicates above sensor range. 1-0xfffe are valid */ |
||
452 | DRM_DEBUG_DRIVER("Illum is not supported\n"); |
||
453 | return ASLC_ALS_ILLUM_FAILED; |
||
454 | } |
||
455 | |||
456 | static u32 asle_set_pwm_freq(struct drm_device *dev, u32 pfmb) |
||
457 | { |
||
458 | DRM_DEBUG_DRIVER("PWM freq is not supported\n"); |
||
459 | return ASLC_PWM_FREQ_FAILED; |
||
460 | } |
||
461 | |||
462 | static u32 asle_set_pfit(struct drm_device *dev, u32 pfit) |
||
463 | { |
||
464 | /* Panel fitting is currently controlled by the X code, so this is a |
||
465 | noop until modesetting support works fully */ |
||
466 | DRM_DEBUG_DRIVER("Pfit is not supported\n"); |
||
467 | return ASLC_PFIT_FAILED; |
||
468 | } |
||
469 | |||
470 | static u32 asle_set_supported_rotation_angles(struct drm_device *dev, u32 srot) |
||
471 | { |
||
472 | DRM_DEBUG_DRIVER("SROT is not supported\n"); |
||
473 | return ASLC_ROTATION_ANGLES_FAILED; |
||
474 | } |
||
475 | |||
476 | static u32 asle_set_button_array(struct drm_device *dev, u32 iuer) |
||
477 | { |
||
478 | if (!iuer) |
||
479 | DRM_DEBUG_DRIVER("Button array event is not supported (nothing)\n"); |
||
480 | if (iuer & ASLE_IUER_ROTATION_LOCK_BTN) |
||
481 | DRM_DEBUG_DRIVER("Button array event is not supported (rotation lock)\n"); |
||
482 | if (iuer & ASLE_IUER_VOLUME_DOWN_BTN) |
||
483 | DRM_DEBUG_DRIVER("Button array event is not supported (volume down)\n"); |
||
484 | if (iuer & ASLE_IUER_VOLUME_UP_BTN) |
||
485 | DRM_DEBUG_DRIVER("Button array event is not supported (volume up)\n"); |
||
486 | if (iuer & ASLE_IUER_WINDOWS_BTN) |
||
487 | DRM_DEBUG_DRIVER("Button array event is not supported (windows)\n"); |
||
488 | if (iuer & ASLE_IUER_POWER_BTN) |
||
489 | DRM_DEBUG_DRIVER("Button array event is not supported (power)\n"); |
||
490 | |||
491 | return ASLC_BUTTON_ARRAY_FAILED; |
||
492 | } |
||
493 | |||
494 | static u32 asle_set_convertible(struct drm_device *dev, u32 iuer) |
||
495 | { |
||
496 | if (iuer & ASLE_IUER_CONVERTIBLE) |
||
497 | DRM_DEBUG_DRIVER("Convertible is not supported (clamshell)\n"); |
||
498 | else |
||
499 | DRM_DEBUG_DRIVER("Convertible is not supported (slate)\n"); |
||
500 | |||
501 | return ASLC_CONVERTIBLE_FAILED; |
||
502 | } |
||
503 | |||
504 | static u32 asle_set_docking(struct drm_device *dev, u32 iuer) |
||
505 | { |
||
506 | if (iuer & ASLE_IUER_DOCKING) |
||
507 | DRM_DEBUG_DRIVER("Docking is not supported (docked)\n"); |
||
508 | else |
||
509 | DRM_DEBUG_DRIVER("Docking is not supported (undocked)\n"); |
||
510 | |||
511 | return ASLC_DOCKING_FAILED; |
||
512 | } |
||
513 | |||
514 | static u32 asle_isct_state(struct drm_device *dev) |
||
515 | { |
||
516 | DRM_DEBUG_DRIVER("ISCT is not supported\n"); |
||
517 | return ASLC_ISCT_STATE_FAILED; |
||
518 | } |
||
519 | |||
520 | static void asle_work(struct work_struct *work) |
||
521 | { |
||
522 | struct intel_opregion *opregion = |
||
523 | container_of(work, struct intel_opregion, asle_work); |
||
524 | struct drm_i915_private *dev_priv = |
||
525 | container_of(opregion, struct drm_i915_private, opregion); |
||
526 | struct drm_device *dev = dev_priv->dev; |
||
6084 | serge | 527 | struct opregion_asle *asle = dev_priv->opregion.asle; |
4560 | Serge | 528 | u32 aslc_stat = 0; |
529 | u32 aslc_req; |
||
530 | |||
531 | if (!asle) |
||
532 | return; |
||
533 | |||
6084 | serge | 534 | aslc_req = asle->aslc; |
4560 | Serge | 535 | |
536 | if (!(aslc_req & ASLC_REQ_MSK)) { |
||
537 | DRM_DEBUG_DRIVER("No request on ASLC interrupt 0x%08x\n", |
||
538 | aslc_req); |
||
539 | return; |
||
540 | } |
||
541 | |||
542 | if (aslc_req & ASLC_SET_ALS_ILLUM) |
||
6084 | serge | 543 | aslc_stat |= asle_set_als_illum(dev, asle->alsi); |
4560 | Serge | 544 | |
545 | if (aslc_req & ASLC_SET_BACKLIGHT) |
||
6084 | serge | 546 | aslc_stat |= asle_set_backlight(dev, asle->bclp); |
4560 | Serge | 547 | |
548 | if (aslc_req & ASLC_SET_PFIT) |
||
6084 | serge | 549 | aslc_stat |= asle_set_pfit(dev, asle->pfit); |
4560 | Serge | 550 | |
551 | if (aslc_req & ASLC_SET_PWM_FREQ) |
||
6084 | serge | 552 | aslc_stat |= asle_set_pwm_freq(dev, asle->pfmb); |
4560 | Serge | 553 | |
554 | if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES) |
||
555 | aslc_stat |= asle_set_supported_rotation_angles(dev, |
||
6084 | serge | 556 | asle->srot); |
4560 | Serge | 557 | |
558 | if (aslc_req & ASLC_BUTTON_ARRAY) |
||
6084 | serge | 559 | aslc_stat |= asle_set_button_array(dev, asle->iuer); |
4560 | Serge | 560 | |
561 | if (aslc_req & ASLC_CONVERTIBLE_INDICATOR) |
||
6084 | serge | 562 | aslc_stat |= asle_set_convertible(dev, asle->iuer); |
4560 | Serge | 563 | |
564 | if (aslc_req & ASLC_DOCKING_INDICATOR) |
||
6084 | serge | 565 | aslc_stat |= asle_set_docking(dev, asle->iuer); |
4560 | Serge | 566 | |
567 | if (aslc_req & ASLC_ISCT_STATE_CHANGE) |
||
568 | aslc_stat |= asle_isct_state(dev); |
||
569 | |||
6084 | serge | 570 | asle->aslc = aslc_stat; |
4560 | Serge | 571 | } |
572 | |||
573 | void intel_opregion_asle_intr(struct drm_device *dev) |
||
574 | { |
||
575 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
576 | |||
577 | if (dev_priv->opregion.asle) |
||
578 | schedule_work(&dev_priv->opregion.asle_work); |
||
579 | } |
||
580 | |||
581 | #define ACPI_EV_DISPLAY_SWITCH (1<<0) |
||
582 | #define ACPI_EV_LID (1<<1) |
||
583 | #define ACPI_EV_DOCK (1<<2) |
||
584 | |||
585 | static struct intel_opregion *system_opregion; |
||
586 | |||
587 | static int intel_opregion_video_event(struct notifier_block *nb, |
||
588 | unsigned long val, void *data) |
||
589 | { |
||
590 | /* The only video events relevant to opregion are 0x80. These indicate |
||
591 | either a docking event, lid switch or display switch request. In |
||
592 | Linux, these are handled by the dock, button and video drivers. |
||
593 | */ |
||
594 | |||
595 | struct acpi_bus_event *event = data; |
||
6084 | serge | 596 | struct opregion_acpi *acpi; |
4560 | Serge | 597 | int ret = NOTIFY_OK; |
598 | |||
599 | if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) |
||
600 | return NOTIFY_DONE; |
||
601 | |||
602 | if (!system_opregion) |
||
603 | return NOTIFY_DONE; |
||
604 | |||
605 | acpi = system_opregion->acpi; |
||
606 | |||
6084 | serge | 607 | if (event->type == 0x80 && ((acpi->cevt & 1) == 0)) |
4560 | Serge | 608 | ret = NOTIFY_BAD; |
609 | |||
6084 | serge | 610 | acpi->csts = 0; |
4560 | Serge | 611 | |
612 | return ret; |
||
613 | } |
||
614 | |||
615 | static struct notifier_block intel_opregion_notifier = { |
||
616 | .notifier_call = intel_opregion_video_event, |
||
617 | }; |
||
618 | |||
619 | /* |
||
620 | * Initialise the DIDL field in opregion. This passes a list of devices to |
||
621 | * the firmware. Values are defined by section B.4.2 of the ACPI specification |
||
622 | * (version 3) |
||
623 | */ |
||
624 | |||
6084 | serge | 625 | static u32 get_did(struct intel_opregion *opregion, int i) |
626 | { |
||
627 | u32 did; |
||
628 | |||
629 | if (i < ARRAY_SIZE(opregion->acpi->didl)) { |
||
630 | did = opregion->acpi->didl[i]; |
||
631 | } else { |
||
632 | i -= ARRAY_SIZE(opregion->acpi->didl); |
||
633 | |||
634 | if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) |
||
635 | return 0; |
||
636 | |||
637 | did = opregion->acpi->did2[i]; |
||
638 | } |
||
639 | |||
640 | return did; |
||
641 | } |
||
642 | |||
643 | static void set_did(struct intel_opregion *opregion, int i, u32 val) |
||
644 | { |
||
645 | if (i < ARRAY_SIZE(opregion->acpi->didl)) { |
||
646 | opregion->acpi->didl[i] = val; |
||
647 | } else { |
||
648 | i -= ARRAY_SIZE(opregion->acpi->didl); |
||
649 | |||
650 | if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) |
||
651 | return; |
||
652 | |||
653 | opregion->acpi->did2[i] = val; |
||
654 | } |
||
655 | } |
||
656 | |||
4560 | Serge | 657 | static void intel_didl_outputs(struct drm_device *dev) |
658 | { |
||
659 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
660 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
661 | struct drm_connector *connector; |
||
662 | acpi_handle handle; |
||
663 | struct acpi_device *acpi_dev, *acpi_cdev, *acpi_video_bus = NULL; |
||
664 | unsigned long long device_id; |
||
665 | acpi_status status; |
||
6084 | serge | 666 | u32 temp, max_outputs; |
4560 | Serge | 667 | int i = 0; |
668 | |||
669 | handle = ACPI_HANDLE(&dev->pdev->dev); |
||
670 | if (!handle || acpi_bus_get_device(handle, &acpi_dev)) |
||
671 | return; |
||
672 | |||
673 | if (acpi_is_video_device(handle)) |
||
674 | acpi_video_bus = acpi_dev; |
||
675 | else { |
||
676 | list_for_each_entry(acpi_cdev, &acpi_dev->children, node) { |
||
677 | if (acpi_is_video_device(acpi_cdev->handle)) { |
||
678 | acpi_video_bus = acpi_cdev; |
||
679 | break; |
||
680 | } |
||
681 | } |
||
682 | } |
||
683 | |||
684 | if (!acpi_video_bus) { |
||
6084 | serge | 685 | DRM_ERROR("No ACPI video bus found\n"); |
4560 | Serge | 686 | return; |
687 | } |
||
688 | |||
6084 | serge | 689 | /* |
690 | * In theory, did2, the extended didl, gets added at opregion version |
||
691 | * 3.0. In practice, however, we're supposed to set it for earlier |
||
692 | * versions as well, since a BIOS that doesn't understand did2 should |
||
693 | * not look at it anyway. Use a variable so we can tweak this if a need |
||
694 | * arises later. |
||
695 | */ |
||
696 | max_outputs = ARRAY_SIZE(opregion->acpi->didl) + |
||
697 | ARRAY_SIZE(opregion->acpi->did2); |
||
698 | |||
4560 | Serge | 699 | list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) { |
6084 | serge | 700 | if (i >= max_outputs) { |
701 | DRM_DEBUG_KMS("More than %u outputs detected via ACPI\n", |
||
702 | max_outputs); |
||
4560 | Serge | 703 | return; |
704 | } |
||
6084 | serge | 705 | status = acpi_evaluate_integer(acpi_cdev->handle, "_ADR", |
706 | NULL, &device_id); |
||
4560 | Serge | 707 | if (ACPI_SUCCESS(status)) { |
708 | if (!device_id) |
||
709 | goto blind_set; |
||
6084 | serge | 710 | set_did(opregion, i++, (u32)(device_id & 0x0f0f)); |
4560 | Serge | 711 | } |
712 | } |
||
713 | |||
714 | end: |
||
6084 | serge | 715 | DRM_DEBUG_KMS("%d outputs detected\n", i); |
716 | |||
717 | /* If fewer than max outputs, the list must be null terminated */ |
||
718 | if (i < max_outputs) |
||
719 | set_did(opregion, i, 0); |
||
4560 | Serge | 720 | return; |
721 | |||
722 | blind_set: |
||
723 | i = 0; |
||
724 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
725 | int output_type = ACPI_OTHER_OUTPUT; |
||
6084 | serge | 726 | if (i >= max_outputs) { |
727 | DRM_DEBUG_KMS("More than %u outputs in connector list\n", |
||
728 | max_outputs); |
||
4560 | Serge | 729 | return; |
730 | } |
||
731 | switch (connector->connector_type) { |
||
732 | case DRM_MODE_CONNECTOR_VGA: |
||
733 | case DRM_MODE_CONNECTOR_DVIA: |
||
734 | output_type = ACPI_VGA_OUTPUT; |
||
735 | break; |
||
736 | case DRM_MODE_CONNECTOR_Composite: |
||
737 | case DRM_MODE_CONNECTOR_SVIDEO: |
||
738 | case DRM_MODE_CONNECTOR_Component: |
||
739 | case DRM_MODE_CONNECTOR_9PinDIN: |
||
740 | output_type = ACPI_TV_OUTPUT; |
||
741 | break; |
||
742 | case DRM_MODE_CONNECTOR_DVII: |
||
743 | case DRM_MODE_CONNECTOR_DVID: |
||
744 | case DRM_MODE_CONNECTOR_DisplayPort: |
||
745 | case DRM_MODE_CONNECTOR_HDMIA: |
||
746 | case DRM_MODE_CONNECTOR_HDMIB: |
||
747 | output_type = ACPI_DIGITAL_OUTPUT; |
||
748 | break; |
||
749 | case DRM_MODE_CONNECTOR_LVDS: |
||
750 | output_type = ACPI_LVDS_OUTPUT; |
||
751 | break; |
||
752 | } |
||
6084 | serge | 753 | temp = get_did(opregion, i); |
754 | set_did(opregion, i, temp | (1 << 31) | output_type | i); |
||
4560 | Serge | 755 | i++; |
756 | } |
||
757 | goto end; |
||
758 | } |
||
759 | |||
760 | static void intel_setup_cadls(struct drm_device *dev) |
||
761 | { |
||
762 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
763 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
764 | int i = 0; |
||
765 | u32 disp_id; |
||
766 | |||
767 | /* Initialize the CADL field by duplicating the DIDL values. |
||
768 | * Technically, this is not always correct as display outputs may exist, |
||
769 | * but not active. This initialization is necessary for some Clevo |
||
770 | * laptops that check this field before processing the brightness and |
||
771 | * display switching hotkeys. Just like DIDL, CADL is NULL-terminated if |
||
772 | * there are less than eight devices. */ |
||
773 | do { |
||
6084 | serge | 774 | disp_id = get_did(opregion, i); |
775 | opregion->acpi->cadl[i] = disp_id; |
||
4560 | Serge | 776 | } while (++i < 8 && disp_id != 0); |
777 | } |
||
778 | |||
779 | void intel_opregion_init(struct drm_device *dev) |
||
780 | { |
||
781 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
782 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
783 | |||
784 | if (!opregion->header) |
||
785 | return; |
||
786 | |||
787 | if (opregion->acpi) { |
||
6084 | serge | 788 | intel_didl_outputs(dev); |
789 | intel_setup_cadls(dev); |
||
4560 | Serge | 790 | |
791 | /* Notify BIOS we are ready to handle ACPI video ext notifs. |
||
792 | * Right now, all the events are handled by the ACPI video module. |
||
793 | * We don't actually need to do anything with them. */ |
||
6084 | serge | 794 | opregion->acpi->csts = 0; |
795 | opregion->acpi->drdy = 1; |
||
4560 | Serge | 796 | |
797 | system_opregion = opregion; |
||
798 | register_acpi_notifier(&intel_opregion_notifier); |
||
799 | } |
||
800 | |||
801 | if (opregion->asle) { |
||
6084 | serge | 802 | opregion->asle->tche = ASLE_TCHE_BLC_EN; |
803 | opregion->asle->ardy = ASLE_ARDY_READY; |
||
4560 | Serge | 804 | } |
805 | } |
||
806 | |||
807 | void intel_opregion_fini(struct drm_device *dev) |
||
808 | { |
||
809 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
810 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
811 | |||
812 | if (!opregion->header) |
||
813 | return; |
||
814 | |||
815 | if (opregion->asle) |
||
6084 | serge | 816 | opregion->asle->ardy = ASLE_ARDY_NOT_READY; |
4560 | Serge | 817 | |
818 | cancel_work_sync(&dev_priv->opregion.asle_work); |
||
819 | |||
820 | if (opregion->acpi) { |
||
6084 | serge | 821 | opregion->acpi->drdy = 0; |
4560 | Serge | 822 | |
823 | system_opregion = NULL; |
||
824 | unregister_acpi_notifier(&intel_opregion_notifier); |
||
825 | } |
||
826 | |||
827 | /* just clear all opregion memory pointers now */ |
||
6084 | serge | 828 | memunmap(opregion->header); |
4560 | Serge | 829 | opregion->header = NULL; |
830 | opregion->acpi = NULL; |
||
831 | opregion->swsci = NULL; |
||
832 | opregion->asle = NULL; |
||
833 | opregion->vbt = NULL; |
||
834 | opregion->lid_state = NULL; |
||
835 | } |
||
836 | |||
837 | static void swsci_setup(struct drm_device *dev) |
||
838 | { |
||
839 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
840 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
841 | bool requested_callbacks = false; |
||
842 | u32 tmp; |
||
843 | |||
844 | /* Sub-function code 0 is okay, let's allow them. */ |
||
845 | opregion->swsci_gbda_sub_functions = 1; |
||
846 | opregion->swsci_sbcb_sub_functions = 1; |
||
847 | |||
848 | /* We use GBDA to ask for supported GBDA calls. */ |
||
849 | if (swsci(dev, SWSCI_GBDA_SUPPORTED_CALLS, 0, &tmp) == 0) { |
||
850 | /* make the bits match the sub-function codes */ |
||
851 | tmp <<= 1; |
||
852 | opregion->swsci_gbda_sub_functions |= tmp; |
||
853 | } |
||
854 | |||
855 | /* |
||
856 | * We also use GBDA to ask for _requested_ SBCB callbacks. The driver |
||
857 | * must not call interfaces that are not specifically requested by the |
||
858 | * bios. |
||
859 | */ |
||
860 | if (swsci(dev, SWSCI_GBDA_REQUESTED_CALLBACKS, 0, &tmp) == 0) { |
||
861 | /* here, the bits already match sub-function codes */ |
||
862 | opregion->swsci_sbcb_sub_functions |= tmp; |
||
863 | requested_callbacks = true; |
||
864 | } |
||
865 | |||
866 | /* |
||
867 | * But we use SBCB to ask for _supported_ SBCB calls. This does not mean |
||
868 | * the callback is _requested_. But we still can't call interfaces that |
||
869 | * are not requested. |
||
870 | */ |
||
871 | if (swsci(dev, SWSCI_SBCB_SUPPORTED_CALLBACKS, 0, &tmp) == 0) { |
||
872 | /* make the bits match the sub-function codes */ |
||
873 | u32 low = tmp & 0x7ff; |
||
874 | u32 high = tmp & ~0xfff; /* bit 11 is reserved */ |
||
875 | tmp = (high << 4) | (low << 1) | 1; |
||
876 | |||
877 | /* best guess what to do with supported wrt requested */ |
||
878 | if (requested_callbacks) { |
||
879 | u32 req = opregion->swsci_sbcb_sub_functions; |
||
880 | if ((req & tmp) != req) |
||
881 | DRM_DEBUG_DRIVER("SWSCI BIOS requested (%08x) SBCB callbacks that are not supported (%08x)\n", req, tmp); |
||
882 | /* XXX: for now, trust the requested callbacks */ |
||
883 | /* opregion->swsci_sbcb_sub_functions &= tmp; */ |
||
884 | } else { |
||
885 | opregion->swsci_sbcb_sub_functions |= tmp; |
||
886 | } |
||
887 | } |
||
888 | |||
889 | DRM_DEBUG_DRIVER("SWSCI GBDA callbacks %08x, SBCB callbacks %08x\n", |
||
890 | opregion->swsci_gbda_sub_functions, |
||
891 | opregion->swsci_sbcb_sub_functions); |
||
892 | } |
||
893 | #else /* CONFIG_ACPI */ |
||
894 | static inline void swsci_setup(struct drm_device *dev) {} |
||
895 | #endif /* CONFIG_ACPI */ |
||
896 | |||
2327 | Serge | 897 | int intel_opregion_setup(struct drm_device *dev) |
898 | { |
||
899 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
900 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
901 | u32 asls, mboxes; |
||
3031 | serge | 902 | char buf[sizeof(OPREGION_SIGNATURE)]; |
2327 | Serge | 903 | int err = 0; |
6084 | serge | 904 | void *base; |
2327 | Serge | 905 | |
6084 | serge | 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 | |||
2327 | Serge | 911 | pci_read_config_dword(dev->pdev, PCI_ASLS, &asls); |
912 | DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); |
||
913 | if (asls == 0) { |
||
914 | DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n"); |
||
915 | return -ENOTSUPP; |
||
916 | } |
||
917 | |||
5060 | serge | 918 | #ifdef CONFIG_ACPI |
919 | INIT_WORK(&opregion->asle_work, asle_work); |
||
920 | #endif |
||
921 | |||
6084 | serge | 922 | base = memremap(asls, OPREGION_SIZE, MEMREMAP_WB); |
2327 | Serge | 923 | if (!base) |
924 | return -ENOMEM; |
||
925 | |||
6084 | serge | 926 | memcpy(buf, base, sizeof(buf)); |
3031 | serge | 927 | |
928 | if (memcmp(buf, OPREGION_SIGNATURE, 16)) { |
||
2327 | Serge | 929 | DRM_DEBUG_DRIVER("opregion signature mismatch\n"); |
930 | err = -EINVAL; |
||
931 | goto err_out; |
||
932 | } |
||
933 | opregion->header = base; |
||
934 | opregion->vbt = base + OPREGION_VBT_OFFSET; |
||
935 | |||
936 | opregion->lid_state = base + ACPI_CLID; |
||
937 | |||
6084 | serge | 938 | mboxes = opregion->header->mboxes; |
2327 | Serge | 939 | if (mboxes & MBOX_ACPI) { |
940 | DRM_DEBUG_DRIVER("Public ACPI methods supported\n"); |
||
941 | opregion->acpi = base + OPREGION_ACPI_OFFSET; |
||
942 | } |
||
943 | |||
944 | if (mboxes & MBOX_SWSCI) { |
||
945 | DRM_DEBUG_DRIVER("SWSCI supported\n"); |
||
946 | opregion->swsci = base + OPREGION_SWSCI_OFFSET; |
||
4560 | Serge | 947 | swsci_setup(dev); |
2327 | Serge | 948 | } |
949 | if (mboxes & MBOX_ASLE) { |
||
950 | DRM_DEBUG_DRIVER("ASLE supported\n"); |
||
951 | opregion->asle = base + OPREGION_ASLE_OFFSET; |
||
4104 | Serge | 952 | |
6084 | serge | 953 | opregion->asle->ardy = ASLE_ARDY_NOT_READY; |
2327 | Serge | 954 | } |
955 | |||
956 | return 0; |
||
957 | |||
958 | err_out: |
||
6084 | serge | 959 | memunmap(base); |
2327 | Serge | 960 | return err; |
961 | }><>><>=><=>>><>>>>2) |