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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 | |||
3031 | serge | 28 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
29 | |||
5060 | serge | 30 | #include |
31 | #include |
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3031 | serge | 32 | |
33 | #include |
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34 | #include |
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2327 | Serge | 35 | #include "i915_drv.h" |
36 | #include "intel_drv.h" |
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37 | |||
38 | #define PCI_ASLE 0xe4 |
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39 | #define PCI_ASLS 0xfc |
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4560 | Serge | 40 | #define PCI_SWSCI 0xe8 |
41 | #define PCI_SWSCI_SCISEL (1 << 15) |
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42 | #define PCI_SWSCI_GSSCIE (1 << 0) |
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2327 | Serge | 43 | |
44 | #define OPREGION_HEADER_OFFSET 0 |
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45 | #define OPREGION_ACPI_OFFSET 0x100 |
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46 | #define ACPI_CLID 0x01ac /* current lid state indicator */ |
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47 | #define ACPI_CDCK 0x01b0 /* current docking state indicator */ |
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48 | #define OPREGION_SWSCI_OFFSET 0x200 |
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49 | #define OPREGION_ASLE_OFFSET 0x300 |
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50 | #define OPREGION_VBT_OFFSET 0x400 |
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51 | |||
52 | #define OPREGION_SIGNATURE "IntelGraphicsMem" |
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53 | #define MBOX_ACPI (1<<0) |
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54 | #define MBOX_SWSCI (1<<1) |
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55 | #define MBOX_ASLE (1<<2) |
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56 | |||
57 | struct opregion_header { |
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58 | u8 signature[16]; |
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59 | u32 size; |
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60 | u32 opregion_ver; |
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61 | u8 bios_ver[32]; |
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62 | u8 vbios_ver[16]; |
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63 | u8 driver_ver[16]; |
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64 | u32 mboxes; |
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65 | u8 reserved[164]; |
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4560 | Serge | 66 | } __packed; |
2327 | Serge | 67 | |
68 | /* OpRegion mailbox #1: public ACPI methods */ |
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69 | struct opregion_acpi { |
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70 | u32 drdy; /* driver readiness */ |
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71 | u32 csts; /* notification status */ |
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72 | u32 cevt; /* current event */ |
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73 | u8 rsvd1[20]; |
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74 | u32 didl[8]; /* supported display devices ID list */ |
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75 | u32 cpdl[8]; /* currently presented display list */ |
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76 | u32 cadl[8]; /* currently active display list */ |
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77 | u32 nadl[8]; /* next active devices list */ |
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78 | u32 aslp; /* ASL sleep time-out */ |
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79 | u32 tidx; /* toggle table index */ |
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80 | u32 chpd; /* current hotplug enable indicator */ |
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81 | u32 clid; /* current lid state*/ |
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82 | u32 cdck; /* current docking state */ |
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83 | u32 sxsw; /* Sx state resume */ |
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84 | u32 evts; /* ASL supported events */ |
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85 | u32 cnot; /* current OS notification */ |
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86 | u32 nrdy; /* driver status */ |
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87 | u8 rsvd2[60]; |
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4560 | Serge | 88 | } __packed; |
2327 | Serge | 89 | |
90 | /* OpRegion mailbox #2: SWSCI */ |
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91 | struct opregion_swsci { |
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92 | u32 scic; /* SWSCI command|status|data */ |
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93 | u32 parm; /* command parameters */ |
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94 | u32 dslp; /* driver sleep time-out */ |
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95 | u8 rsvd[244]; |
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4560 | Serge | 96 | } __packed; |
2327 | Serge | 97 | |
98 | /* OpRegion mailbox #3: ASLE */ |
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99 | struct opregion_asle { |
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100 | u32 ardy; /* driver readiness */ |
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101 | u32 aslc; /* ASLE interrupt command */ |
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102 | u32 tche; /* technology enabled indicator */ |
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103 | u32 alsi; /* current ALS illuminance reading */ |
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104 | u32 bclp; /* backlight brightness to set */ |
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105 | u32 pfit; /* panel fitting state */ |
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106 | u32 cblv; /* current brightness level */ |
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107 | u16 bclm[20]; /* backlight level duty cycle mapping table */ |
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108 | u32 cpfm; /* current panel fitting mode */ |
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109 | u32 epfm; /* enabled panel fitting modes */ |
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110 | u8 plut[74]; /* panel LUT and identifier */ |
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111 | u32 pfmb; /* PWM freq and min brightness */ |
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4560 | Serge | 112 | u32 cddv; /* color correction default values */ |
113 | u32 pcft; /* power conservation features */ |
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114 | u32 srot; /* supported rotation angles */ |
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115 | u32 iuer; /* IUER events */ |
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116 | u8 rsvd[86]; |
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117 | } __packed; |
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2327 | Serge | 118 | |
4104 | Serge | 119 | /* Driver readiness indicator */ |
120 | #define ASLE_ARDY_READY (1 << 0) |
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121 | #define ASLE_ARDY_NOT_READY (0 << 0) |
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122 | |||
4560 | Serge | 123 | /* ASLE Interrupt Command (ASLC) bits */ |
124 | #define ASLC_SET_ALS_ILLUM (1 << 0) |
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125 | #define ASLC_SET_BACKLIGHT (1 << 1) |
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126 | #define ASLC_SET_PFIT (1 << 2) |
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127 | #define ASLC_SET_PWM_FREQ (1 << 3) |
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128 | #define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4) |
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129 | #define ASLC_BUTTON_ARRAY (1 << 5) |
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130 | #define ASLC_CONVERTIBLE_INDICATOR (1 << 6) |
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131 | #define ASLC_DOCKING_INDICATOR (1 << 7) |
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132 | #define ASLC_ISCT_STATE_CHANGE (1 << 8) |
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133 | #define ASLC_REQ_MSK 0x1ff |
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134 | /* response bits */ |
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135 | #define ASLC_ALS_ILLUM_FAILED (1 << 10) |
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136 | #define ASLC_BACKLIGHT_FAILED (1 << 12) |
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137 | #define ASLC_PFIT_FAILED (1 << 14) |
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138 | #define ASLC_PWM_FREQ_FAILED (1 << 16) |
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139 | #define ASLC_ROTATION_ANGLES_FAILED (1 << 18) |
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140 | #define ASLC_BUTTON_ARRAY_FAILED (1 << 20) |
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141 | #define ASLC_CONVERTIBLE_FAILED (1 << 22) |
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142 | #define ASLC_DOCKING_FAILED (1 << 24) |
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143 | #define ASLC_ISCT_STATE_FAILED (1 << 26) |
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2327 | Serge | 144 | |
4104 | Serge | 145 | /* Technology enabled indicator */ |
146 | #define ASLE_TCHE_ALS_EN (1 << 0) |
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147 | #define ASLE_TCHE_BLC_EN (1 << 1) |
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148 | #define ASLE_TCHE_PFIT_EN (1 << 2) |
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149 | #define ASLE_TCHE_PFMB_EN (1 << 3) |
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150 | |||
2327 | Serge | 151 | /* ASLE backlight brightness to set */ |
152 | #define ASLE_BCLP_VALID (1<<31) |
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153 | #define ASLE_BCLP_MSK (~(1<<31)) |
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154 | |||
155 | /* ASLE panel fitting request */ |
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156 | #define ASLE_PFIT_VALID (1<<31) |
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157 | #define ASLE_PFIT_CENTER (1<<0) |
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158 | #define ASLE_PFIT_STRETCH_TEXT (1<<1) |
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159 | #define ASLE_PFIT_STRETCH_GFX (1<<2) |
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160 | |||
161 | /* PWM frequency and minimum brightness */ |
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162 | #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) |
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163 | #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) |
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164 | #define ASLE_PFMB_PWM_MASK (0x7ffffe00) |
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165 | #define ASLE_PFMB_PWM_VALID (1<<31) |
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166 | |||
167 | #define ASLE_CBLV_VALID (1<<31) |
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168 | |||
4560 | Serge | 169 | /* IUER */ |
170 | #define ASLE_IUER_DOCKING (1 << 7) |
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171 | #define ASLE_IUER_CONVERTIBLE (1 << 6) |
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172 | #define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4) |
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173 | #define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3) |
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174 | #define ASLE_IUER_VOLUME_UP_BTN (1 << 2) |
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175 | #define ASLE_IUER_WINDOWS_BTN (1 << 1) |
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176 | #define ASLE_IUER_POWER_BTN (1 << 0) |
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177 | |||
178 | /* Software System Control Interrupt (SWSCI) */ |
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179 | #define SWSCI_SCIC_INDICATOR (1 << 0) |
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180 | #define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1 |
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181 | #define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1) |
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182 | #define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8 |
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183 | #define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8) |
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184 | #define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8 |
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185 | #define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8) |
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186 | #define SWSCI_SCIC_EXIT_STATUS_SHIFT 5 |
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187 | #define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5) |
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188 | #define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1 |
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189 | |||
190 | #define SWSCI_FUNCTION_CODE(main, sub) \ |
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191 | ((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \ |
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192 | (sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT) |
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193 | |||
194 | /* SWSCI: Get BIOS Data (GBDA) */ |
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195 | #define SWSCI_GBDA 4 |
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196 | #define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0) |
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197 | #define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1) |
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198 | #define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4) |
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199 | #define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5) |
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200 | #define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6) |
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201 | #define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7) |
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202 | #define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10) |
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203 | |||
204 | /* SWSCI: System BIOS Callbacks (SBCB) */ |
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205 | #define SWSCI_SBCB 6 |
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206 | #define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0) |
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207 | #define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1) |
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208 | #define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3) |
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209 | #define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4) |
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210 | #define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5) |
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211 | #define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6) |
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212 | #define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7) |
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213 | #define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8) |
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214 | #define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9) |
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215 | #define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10) |
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216 | #define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11) |
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217 | #define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16) |
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218 | #define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17) |
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219 | #define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18) |
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220 | #define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19) |
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221 | #define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21) |
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222 | |||
2327 | Serge | 223 | #define ACPI_OTHER_OUTPUT (0<<8) |
224 | #define ACPI_VGA_OUTPUT (1<<8) |
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225 | #define ACPI_TV_OUTPUT (2<<8) |
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226 | #define ACPI_DIGITAL_OUTPUT (3<<8) |
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227 | #define ACPI_LVDS_OUTPUT (4<<8) |
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228 | |||
5060 | serge | 229 | #define MAX_DSLP 1500 |
230 | |||
2327 | Serge | 231 | #ifdef CONFIG_ACPI |
4560 | Serge | 232 | static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out) |
233 | { |
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234 | struct drm_i915_private *dev_priv = dev->dev_private; |
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235 | struct opregion_swsci __iomem *swsci = dev_priv->opregion.swsci; |
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236 | u32 main_function, sub_function, scic; |
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237 | u16 pci_swsci; |
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238 | u32 dslp; |
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2327 | Serge | 239 | |
4560 | Serge | 240 | if (!swsci) |
241 | return -ENODEV; |
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242 | |||
243 | main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >> |
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244 | SWSCI_SCIC_MAIN_FUNCTION_SHIFT; |
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245 | sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >> |
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246 | SWSCI_SCIC_SUB_FUNCTION_SHIFT; |
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247 | |||
248 | /* Check if we can call the function. See swsci_setup for details. */ |
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249 | if (main_function == SWSCI_SBCB) { |
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250 | if ((dev_priv->opregion.swsci_sbcb_sub_functions & |
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251 | (1 << sub_function)) == 0) |
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252 | return -EINVAL; |
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253 | } else if (main_function == SWSCI_GBDA) { |
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254 | if ((dev_priv->opregion.swsci_gbda_sub_functions & |
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255 | (1 << sub_function)) == 0) |
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256 | return -EINVAL; |
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257 | } |
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258 | |||
259 | /* Driver sleep timeout in ms. */ |
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260 | dslp = ioread32(&swsci->dslp); |
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261 | if (!dslp) { |
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262 | /* The spec says 2ms should be the default, but it's too small |
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263 | * for some machines. */ |
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264 | dslp = 50; |
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5060 | serge | 265 | } else if (dslp > MAX_DSLP) { |
4560 | Serge | 266 | /* Hey bios, trust must be earned. */ |
5060 | serge | 267 | DRM_INFO_ONCE("ACPI BIOS requests an excessive sleep of %u ms, " |
268 | "using %u ms instead\n", dslp, MAX_DSLP); |
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269 | dslp = MAX_DSLP; |
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4560 | Serge | 270 | } |
271 | |||
272 | /* The spec tells us to do this, but we are the only user... */ |
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273 | scic = ioread32(&swsci->scic); |
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274 | if (scic & SWSCI_SCIC_INDICATOR) { |
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275 | DRM_DEBUG_DRIVER("SWSCI request already in progress\n"); |
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276 | return -EBUSY; |
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277 | } |
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278 | |||
279 | scic = function | SWSCI_SCIC_INDICATOR; |
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280 | |||
281 | iowrite32(parm, &swsci->parm); |
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282 | iowrite32(scic, &swsci->scic); |
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283 | |||
284 | /* Ensure SCI event is selected and event trigger is cleared. */ |
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285 | pci_read_config_word(dev->pdev, PCI_SWSCI, &pci_swsci); |
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286 | if (!(pci_swsci & PCI_SWSCI_SCISEL) || (pci_swsci & PCI_SWSCI_GSSCIE)) { |
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287 | pci_swsci |= PCI_SWSCI_SCISEL; |
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288 | pci_swsci &= ~PCI_SWSCI_GSSCIE; |
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289 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
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290 | } |
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291 | |||
292 | /* Use event trigger to tell bios to check the mail. */ |
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293 | pci_swsci |= PCI_SWSCI_GSSCIE; |
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294 | pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
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295 | |||
296 | /* Poll for the result. */ |
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297 | #define C (((scic = ioread32(&swsci->scic)) & SWSCI_SCIC_INDICATOR) == 0) |
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298 | if (wait_for(C, dslp)) { |
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299 | DRM_DEBUG_DRIVER("SWSCI request timed out\n"); |
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300 | return -ETIMEDOUT; |
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301 | } |
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302 | |||
303 | scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >> |
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304 | SWSCI_SCIC_EXIT_STATUS_SHIFT; |
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305 | |||
306 | /* Note: scic == 0 is an error! */ |
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307 | if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) { |
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308 | DRM_DEBUG_DRIVER("SWSCI request error %u\n", scic); |
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309 | return -EIO; |
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310 | } |
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311 | |||
312 | if (parm_out) |
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313 | *parm_out = ioread32(&swsci->parm); |
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314 | |||
315 | return 0; |
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316 | |||
317 | #undef C |
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318 | } |
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319 | |||
320 | #define DISPLAY_TYPE_CRT 0 |
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321 | #define DISPLAY_TYPE_TV 1 |
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322 | #define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2 |
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323 | #define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3 |
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324 | |||
325 | int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, |
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326 | bool enable) |
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327 | { |
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328 | struct drm_device *dev = intel_encoder->base.dev; |
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329 | u32 parm = 0; |
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330 | u32 type = 0; |
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331 | u32 port; |
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332 | |||
333 | /* don't care about old stuff for now */ |
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334 | if (!HAS_DDI(dev)) |
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335 | return 0; |
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336 | |||
337 | port = intel_ddi_get_encoder_port(intel_encoder); |
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338 | if (port == PORT_E) { |
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339 | port = 0; |
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340 | } else { |
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341 | parm |= 1 << port; |
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342 | port++; |
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343 | } |
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344 | |||
345 | if (!enable) |
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346 | parm |= 4 << 8; |
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347 | |||
348 | switch (intel_encoder->type) { |
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349 | case INTEL_OUTPUT_ANALOG: |
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350 | type = DISPLAY_TYPE_CRT; |
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351 | break; |
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352 | case INTEL_OUTPUT_UNKNOWN: |
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353 | case INTEL_OUTPUT_DISPLAYPORT: |
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354 | case INTEL_OUTPUT_HDMI: |
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5060 | serge | 355 | case INTEL_OUTPUT_DP_MST: |
4560 | Serge | 356 | type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL; |
357 | break; |
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358 | case INTEL_OUTPUT_EDP: |
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359 | type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL; |
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360 | break; |
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361 | default: |
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362 | WARN_ONCE(1, "unsupported intel_encoder type %d\n", |
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363 | intel_encoder->type); |
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364 | return -EINVAL; |
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365 | } |
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366 | |||
367 | parm |= type << (16 + port * 3); |
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368 | |||
369 | return swsci(dev, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL); |
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370 | } |
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371 | |||
372 | static const struct { |
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373 | pci_power_t pci_power_state; |
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374 | u32 parm; |
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375 | } power_state_map[] = { |
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376 | { PCI_D0, 0x00 }, |
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377 | { PCI_D1, 0x01 }, |
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378 | { PCI_D2, 0x02 }, |
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379 | { PCI_D3hot, 0x04 }, |
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380 | { PCI_D3cold, 0x04 }, |
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381 | }; |
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382 | |||
383 | int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state) |
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384 | { |
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385 | int i; |
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386 | |||
387 | if (!HAS_DDI(dev)) |
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388 | return 0; |
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389 | |||
390 | for (i = 0; i < ARRAY_SIZE(power_state_map); i++) { |
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391 | if (state == power_state_map[i].pci_power_state) |
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392 | return swsci(dev, SWSCI_SBCB_ADAPTER_POWER_STATE, |
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393 | power_state_map[i].parm, NULL); |
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394 | } |
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395 | |||
396 | return -EINVAL; |
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397 | } |
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398 | |||
399 | static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) |
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400 | { |
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401 | struct drm_i915_private *dev_priv = dev->dev_private; |
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402 | struct intel_connector *intel_connector; |
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403 | struct opregion_asle __iomem *asle = dev_priv->opregion.asle; |
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404 | |||
405 | DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); |
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406 | |||
5060 | serge | 407 | /* |
408 | * If the acpi_video interface is not supposed to be used, don't |
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409 | * bother processing backlight level change requests from firmware. |
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410 | */ |
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411 | if (!acpi_video_verify_backlight_support()) { |
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412 | DRM_DEBUG_KMS("opregion backlight request ignored\n"); |
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413 | return 0; |
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414 | } |
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415 | |||
4560 | Serge | 416 | if (!(bclp & ASLE_BCLP_VALID)) |
417 | return ASLC_BACKLIGHT_FAILED; |
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418 | |||
419 | bclp &= ASLE_BCLP_MSK; |
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420 | if (bclp > 255) |
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421 | return ASLC_BACKLIGHT_FAILED; |
||
422 | |||
5060 | serge | 423 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
4560 | Serge | 424 | |
425 | /* |
||
426 | * Update backlight on all connectors that support backlight (usually |
||
427 | * only one). |
||
428 | */ |
||
429 | DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp); |
||
430 | list_for_each_entry(intel_connector, &dev->mode_config.connector_list, base.head) |
||
5060 | serge | 431 | intel_panel_set_backlight_acpi(intel_connector, bclp, 255); |
4560 | Serge | 432 | iowrite32(DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID, &asle->cblv); |
433 | |||
5060 | serge | 434 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
4560 | Serge | 435 | |
436 | |||
437 | return 0; |
||
438 | } |
||
439 | |||
440 | static u32 asle_set_als_illum(struct drm_device *dev, u32 alsi) |
||
441 | { |
||
442 | /* alsi is the current ALS reading in lux. 0 indicates below sensor |
||
443 | range, 0xffff indicates above sensor range. 1-0xfffe are valid */ |
||
444 | DRM_DEBUG_DRIVER("Illum is not supported\n"); |
||
445 | return ASLC_ALS_ILLUM_FAILED; |
||
446 | } |
||
447 | |||
448 | static u32 asle_set_pwm_freq(struct drm_device *dev, u32 pfmb) |
||
449 | { |
||
450 | DRM_DEBUG_DRIVER("PWM freq is not supported\n"); |
||
451 | return ASLC_PWM_FREQ_FAILED; |
||
452 | } |
||
453 | |||
454 | static u32 asle_set_pfit(struct drm_device *dev, u32 pfit) |
||
455 | { |
||
456 | /* Panel fitting is currently controlled by the X code, so this is a |
||
457 | noop until modesetting support works fully */ |
||
458 | DRM_DEBUG_DRIVER("Pfit is not supported\n"); |
||
459 | return ASLC_PFIT_FAILED; |
||
460 | } |
||
461 | |||
462 | static u32 asle_set_supported_rotation_angles(struct drm_device *dev, u32 srot) |
||
463 | { |
||
464 | DRM_DEBUG_DRIVER("SROT is not supported\n"); |
||
465 | return ASLC_ROTATION_ANGLES_FAILED; |
||
466 | } |
||
467 | |||
468 | static u32 asle_set_button_array(struct drm_device *dev, u32 iuer) |
||
469 | { |
||
470 | if (!iuer) |
||
471 | DRM_DEBUG_DRIVER("Button array event is not supported (nothing)\n"); |
||
472 | if (iuer & ASLE_IUER_ROTATION_LOCK_BTN) |
||
473 | DRM_DEBUG_DRIVER("Button array event is not supported (rotation lock)\n"); |
||
474 | if (iuer & ASLE_IUER_VOLUME_DOWN_BTN) |
||
475 | DRM_DEBUG_DRIVER("Button array event is not supported (volume down)\n"); |
||
476 | if (iuer & ASLE_IUER_VOLUME_UP_BTN) |
||
477 | DRM_DEBUG_DRIVER("Button array event is not supported (volume up)\n"); |
||
478 | if (iuer & ASLE_IUER_WINDOWS_BTN) |
||
479 | DRM_DEBUG_DRIVER("Button array event is not supported (windows)\n"); |
||
480 | if (iuer & ASLE_IUER_POWER_BTN) |
||
481 | DRM_DEBUG_DRIVER("Button array event is not supported (power)\n"); |
||
482 | |||
483 | return ASLC_BUTTON_ARRAY_FAILED; |
||
484 | } |
||
485 | |||
486 | static u32 asle_set_convertible(struct drm_device *dev, u32 iuer) |
||
487 | { |
||
488 | if (iuer & ASLE_IUER_CONVERTIBLE) |
||
489 | DRM_DEBUG_DRIVER("Convertible is not supported (clamshell)\n"); |
||
490 | else |
||
491 | DRM_DEBUG_DRIVER("Convertible is not supported (slate)\n"); |
||
492 | |||
493 | return ASLC_CONVERTIBLE_FAILED; |
||
494 | } |
||
495 | |||
496 | static u32 asle_set_docking(struct drm_device *dev, u32 iuer) |
||
497 | { |
||
498 | if (iuer & ASLE_IUER_DOCKING) |
||
499 | DRM_DEBUG_DRIVER("Docking is not supported (docked)\n"); |
||
500 | else |
||
501 | DRM_DEBUG_DRIVER("Docking is not supported (undocked)\n"); |
||
502 | |||
503 | return ASLC_DOCKING_FAILED; |
||
504 | } |
||
505 | |||
506 | static u32 asle_isct_state(struct drm_device *dev) |
||
507 | { |
||
508 | DRM_DEBUG_DRIVER("ISCT is not supported\n"); |
||
509 | return ASLC_ISCT_STATE_FAILED; |
||
510 | } |
||
511 | |||
512 | static void asle_work(struct work_struct *work) |
||
513 | { |
||
514 | struct intel_opregion *opregion = |
||
515 | container_of(work, struct intel_opregion, asle_work); |
||
516 | struct drm_i915_private *dev_priv = |
||
517 | container_of(opregion, struct drm_i915_private, opregion); |
||
518 | struct drm_device *dev = dev_priv->dev; |
||
519 | struct opregion_asle __iomem *asle = dev_priv->opregion.asle; |
||
520 | u32 aslc_stat = 0; |
||
521 | u32 aslc_req; |
||
522 | |||
523 | if (!asle) |
||
524 | return; |
||
525 | |||
526 | aslc_req = ioread32(&asle->aslc); |
||
527 | |||
528 | if (!(aslc_req & ASLC_REQ_MSK)) { |
||
529 | DRM_DEBUG_DRIVER("No request on ASLC interrupt 0x%08x\n", |
||
530 | aslc_req); |
||
531 | return; |
||
532 | } |
||
533 | |||
534 | if (aslc_req & ASLC_SET_ALS_ILLUM) |
||
535 | aslc_stat |= asle_set_als_illum(dev, ioread32(&asle->alsi)); |
||
536 | |||
537 | if (aslc_req & ASLC_SET_BACKLIGHT) |
||
538 | aslc_stat |= asle_set_backlight(dev, ioread32(&asle->bclp)); |
||
539 | |||
540 | if (aslc_req & ASLC_SET_PFIT) |
||
541 | aslc_stat |= asle_set_pfit(dev, ioread32(&asle->pfit)); |
||
542 | |||
543 | if (aslc_req & ASLC_SET_PWM_FREQ) |
||
544 | aslc_stat |= asle_set_pwm_freq(dev, ioread32(&asle->pfmb)); |
||
545 | |||
546 | if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES) |
||
547 | aslc_stat |= asle_set_supported_rotation_angles(dev, |
||
548 | ioread32(&asle->srot)); |
||
549 | |||
550 | if (aslc_req & ASLC_BUTTON_ARRAY) |
||
551 | aslc_stat |= asle_set_button_array(dev, ioread32(&asle->iuer)); |
||
552 | |||
553 | if (aslc_req & ASLC_CONVERTIBLE_INDICATOR) |
||
554 | aslc_stat |= asle_set_convertible(dev, ioread32(&asle->iuer)); |
||
555 | |||
556 | if (aslc_req & ASLC_DOCKING_INDICATOR) |
||
557 | aslc_stat |= asle_set_docking(dev, ioread32(&asle->iuer)); |
||
558 | |||
559 | if (aslc_req & ASLC_ISCT_STATE_CHANGE) |
||
560 | aslc_stat |= asle_isct_state(dev); |
||
561 | |||
562 | iowrite32(aslc_stat, &asle->aslc); |
||
563 | } |
||
564 | |||
565 | void intel_opregion_asle_intr(struct drm_device *dev) |
||
566 | { |
||
567 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
568 | |||
569 | if (dev_priv->opregion.asle) |
||
570 | schedule_work(&dev_priv->opregion.asle_work); |
||
571 | } |
||
572 | |||
573 | #define ACPI_EV_DISPLAY_SWITCH (1<<0) |
||
574 | #define ACPI_EV_LID (1<<1) |
||
575 | #define ACPI_EV_DOCK (1<<2) |
||
576 | |||
577 | static struct intel_opregion *system_opregion; |
||
578 | |||
579 | static int intel_opregion_video_event(struct notifier_block *nb, |
||
580 | unsigned long val, void *data) |
||
581 | { |
||
582 | /* The only video events relevant to opregion are 0x80. These indicate |
||
583 | either a docking event, lid switch or display switch request. In |
||
584 | Linux, these are handled by the dock, button and video drivers. |
||
585 | */ |
||
586 | |||
587 | struct opregion_acpi __iomem *acpi; |
||
588 | struct acpi_bus_event *event = data; |
||
589 | int ret = NOTIFY_OK; |
||
590 | |||
591 | if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) |
||
592 | return NOTIFY_DONE; |
||
593 | |||
594 | if (!system_opregion) |
||
595 | return NOTIFY_DONE; |
||
596 | |||
597 | acpi = system_opregion->acpi; |
||
598 | |||
599 | if (event->type == 0x80 && |
||
600 | (ioread32(&acpi->cevt) & 1) == 0) |
||
601 | ret = NOTIFY_BAD; |
||
602 | |||
603 | iowrite32(0, &acpi->csts); |
||
604 | |||
605 | return ret; |
||
606 | } |
||
607 | |||
608 | static struct notifier_block intel_opregion_notifier = { |
||
609 | .notifier_call = intel_opregion_video_event, |
||
610 | }; |
||
611 | |||
612 | /* |
||
613 | * Initialise the DIDL field in opregion. This passes a list of devices to |
||
614 | * the firmware. Values are defined by section B.4.2 of the ACPI specification |
||
615 | * (version 3) |
||
616 | */ |
||
617 | |||
618 | static void intel_didl_outputs(struct drm_device *dev) |
||
619 | { |
||
620 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
621 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
622 | struct drm_connector *connector; |
||
623 | acpi_handle handle; |
||
624 | struct acpi_device *acpi_dev, *acpi_cdev, *acpi_video_bus = NULL; |
||
625 | unsigned long long device_id; |
||
626 | acpi_status status; |
||
627 | u32 temp; |
||
628 | int i = 0; |
||
629 | |||
630 | handle = ACPI_HANDLE(&dev->pdev->dev); |
||
631 | if (!handle || acpi_bus_get_device(handle, &acpi_dev)) |
||
632 | return; |
||
633 | |||
634 | if (acpi_is_video_device(handle)) |
||
635 | acpi_video_bus = acpi_dev; |
||
636 | else { |
||
637 | list_for_each_entry(acpi_cdev, &acpi_dev->children, node) { |
||
638 | if (acpi_is_video_device(acpi_cdev->handle)) { |
||
639 | acpi_video_bus = acpi_cdev; |
||
640 | break; |
||
641 | } |
||
642 | } |
||
643 | } |
||
644 | |||
645 | if (!acpi_video_bus) { |
||
646 | pr_warn("No ACPI video bus found\n"); |
||
647 | return; |
||
648 | } |
||
649 | |||
650 | list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) { |
||
651 | if (i >= 8) { |
||
652 | dev_dbg(&dev->pdev->dev, |
||
653 | "More than 8 outputs detected via ACPI\n"); |
||
654 | return; |
||
655 | } |
||
656 | status = |
||
657 | acpi_evaluate_integer(acpi_cdev->handle, "_ADR", |
||
658 | NULL, &device_id); |
||
659 | if (ACPI_SUCCESS(status)) { |
||
660 | if (!device_id) |
||
661 | goto blind_set; |
||
662 | iowrite32((u32)(device_id & 0x0f0f), |
||
663 | &opregion->acpi->didl[i]); |
||
664 | i++; |
||
665 | } |
||
666 | } |
||
667 | |||
668 | end: |
||
669 | /* If fewer than 8 outputs, the list must be null terminated */ |
||
670 | if (i < 8) |
||
671 | iowrite32(0, &opregion->acpi->didl[i]); |
||
672 | return; |
||
673 | |||
674 | blind_set: |
||
675 | i = 0; |
||
676 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
||
677 | int output_type = ACPI_OTHER_OUTPUT; |
||
678 | if (i >= 8) { |
||
679 | dev_dbg(&dev->pdev->dev, |
||
680 | "More than 8 outputs in connector list\n"); |
||
681 | return; |
||
682 | } |
||
683 | switch (connector->connector_type) { |
||
684 | case DRM_MODE_CONNECTOR_VGA: |
||
685 | case DRM_MODE_CONNECTOR_DVIA: |
||
686 | output_type = ACPI_VGA_OUTPUT; |
||
687 | break; |
||
688 | case DRM_MODE_CONNECTOR_Composite: |
||
689 | case DRM_MODE_CONNECTOR_SVIDEO: |
||
690 | case DRM_MODE_CONNECTOR_Component: |
||
691 | case DRM_MODE_CONNECTOR_9PinDIN: |
||
692 | output_type = ACPI_TV_OUTPUT; |
||
693 | break; |
||
694 | case DRM_MODE_CONNECTOR_DVII: |
||
695 | case DRM_MODE_CONNECTOR_DVID: |
||
696 | case DRM_MODE_CONNECTOR_DisplayPort: |
||
697 | case DRM_MODE_CONNECTOR_HDMIA: |
||
698 | case DRM_MODE_CONNECTOR_HDMIB: |
||
699 | output_type = ACPI_DIGITAL_OUTPUT; |
||
700 | break; |
||
701 | case DRM_MODE_CONNECTOR_LVDS: |
||
702 | output_type = ACPI_LVDS_OUTPUT; |
||
703 | break; |
||
704 | } |
||
705 | temp = ioread32(&opregion->acpi->didl[i]); |
||
706 | iowrite32(temp | (1<<31) | output_type | i, |
||
707 | &opregion->acpi->didl[i]); |
||
708 | i++; |
||
709 | } |
||
710 | goto end; |
||
711 | } |
||
712 | |||
713 | static void intel_setup_cadls(struct drm_device *dev) |
||
714 | { |
||
715 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
716 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
717 | int i = 0; |
||
718 | u32 disp_id; |
||
719 | |||
720 | /* Initialize the CADL field by duplicating the DIDL values. |
||
721 | * Technically, this is not always correct as display outputs may exist, |
||
722 | * but not active. This initialization is necessary for some Clevo |
||
723 | * laptops that check this field before processing the brightness and |
||
724 | * display switching hotkeys. Just like DIDL, CADL is NULL-terminated if |
||
725 | * there are less than eight devices. */ |
||
726 | do { |
||
727 | disp_id = ioread32(&opregion->acpi->didl[i]); |
||
728 | iowrite32(disp_id, &opregion->acpi->cadl[i]); |
||
729 | } while (++i < 8 && disp_id != 0); |
||
730 | } |
||
731 | |||
732 | void intel_opregion_init(struct drm_device *dev) |
||
733 | { |
||
734 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
735 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
736 | |||
737 | if (!opregion->header) |
||
738 | return; |
||
739 | |||
740 | if (opregion->acpi) { |
||
741 | if (drm_core_check_feature(dev, DRIVER_MODESET)) { |
||
742 | intel_didl_outputs(dev); |
||
743 | intel_setup_cadls(dev); |
||
744 | } |
||
745 | |||
746 | /* Notify BIOS we are ready to handle ACPI video ext notifs. |
||
747 | * Right now, all the events are handled by the ACPI video module. |
||
748 | * We don't actually need to do anything with them. */ |
||
749 | iowrite32(0, &opregion->acpi->csts); |
||
750 | iowrite32(1, &opregion->acpi->drdy); |
||
751 | |||
752 | system_opregion = opregion; |
||
753 | register_acpi_notifier(&intel_opregion_notifier); |
||
754 | } |
||
755 | |||
756 | if (opregion->asle) { |
||
757 | iowrite32(ASLE_TCHE_BLC_EN, &opregion->asle->tche); |
||
758 | iowrite32(ASLE_ARDY_READY, &opregion->asle->ardy); |
||
759 | } |
||
760 | } |
||
761 | |||
762 | void intel_opregion_fini(struct drm_device *dev) |
||
763 | { |
||
764 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
765 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
766 | |||
767 | if (!opregion->header) |
||
768 | return; |
||
769 | |||
770 | if (opregion->asle) |
||
771 | iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy); |
||
772 | |||
773 | cancel_work_sync(&dev_priv->opregion.asle_work); |
||
774 | |||
775 | if (opregion->acpi) { |
||
776 | iowrite32(0, &opregion->acpi->drdy); |
||
777 | |||
778 | system_opregion = NULL; |
||
779 | unregister_acpi_notifier(&intel_opregion_notifier); |
||
780 | } |
||
781 | |||
782 | /* just clear all opregion memory pointers now */ |
||
783 | iounmap(opregion->header); |
||
784 | opregion->header = NULL; |
||
785 | opregion->acpi = NULL; |
||
786 | opregion->swsci = NULL; |
||
787 | opregion->asle = NULL; |
||
788 | opregion->vbt = NULL; |
||
789 | opregion->lid_state = NULL; |
||
790 | } |
||
791 | |||
792 | static void swsci_setup(struct drm_device *dev) |
||
793 | { |
||
794 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
795 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
796 | bool requested_callbacks = false; |
||
797 | u32 tmp; |
||
798 | |||
799 | /* Sub-function code 0 is okay, let's allow them. */ |
||
800 | opregion->swsci_gbda_sub_functions = 1; |
||
801 | opregion->swsci_sbcb_sub_functions = 1; |
||
802 | |||
803 | /* We use GBDA to ask for supported GBDA calls. */ |
||
804 | if (swsci(dev, SWSCI_GBDA_SUPPORTED_CALLS, 0, &tmp) == 0) { |
||
805 | /* make the bits match the sub-function codes */ |
||
806 | tmp <<= 1; |
||
807 | opregion->swsci_gbda_sub_functions |= tmp; |
||
808 | } |
||
809 | |||
810 | /* |
||
811 | * We also use GBDA to ask for _requested_ SBCB callbacks. The driver |
||
812 | * must not call interfaces that are not specifically requested by the |
||
813 | * bios. |
||
814 | */ |
||
815 | if (swsci(dev, SWSCI_GBDA_REQUESTED_CALLBACKS, 0, &tmp) == 0) { |
||
816 | /* here, the bits already match sub-function codes */ |
||
817 | opregion->swsci_sbcb_sub_functions |= tmp; |
||
818 | requested_callbacks = true; |
||
819 | } |
||
820 | |||
821 | /* |
||
822 | * But we use SBCB to ask for _supported_ SBCB calls. This does not mean |
||
823 | * the callback is _requested_. But we still can't call interfaces that |
||
824 | * are not requested. |
||
825 | */ |
||
826 | if (swsci(dev, SWSCI_SBCB_SUPPORTED_CALLBACKS, 0, &tmp) == 0) { |
||
827 | /* make the bits match the sub-function codes */ |
||
828 | u32 low = tmp & 0x7ff; |
||
829 | u32 high = tmp & ~0xfff; /* bit 11 is reserved */ |
||
830 | tmp = (high << 4) | (low << 1) | 1; |
||
831 | |||
832 | /* best guess what to do with supported wrt requested */ |
||
833 | if (requested_callbacks) { |
||
834 | u32 req = opregion->swsci_sbcb_sub_functions; |
||
835 | if ((req & tmp) != req) |
||
836 | DRM_DEBUG_DRIVER("SWSCI BIOS requested (%08x) SBCB callbacks that are not supported (%08x)\n", req, tmp); |
||
837 | /* XXX: for now, trust the requested callbacks */ |
||
838 | /* opregion->swsci_sbcb_sub_functions &= tmp; */ |
||
839 | } else { |
||
840 | opregion->swsci_sbcb_sub_functions |= tmp; |
||
841 | } |
||
842 | } |
||
843 | |||
844 | DRM_DEBUG_DRIVER("SWSCI GBDA callbacks %08x, SBCB callbacks %08x\n", |
||
845 | opregion->swsci_gbda_sub_functions, |
||
846 | opregion->swsci_sbcb_sub_functions); |
||
847 | } |
||
848 | #else /* CONFIG_ACPI */ |
||
849 | static inline void swsci_setup(struct drm_device *dev) {} |
||
850 | #endif /* CONFIG_ACPI */ |
||
851 | |||
2327 | Serge | 852 | int intel_opregion_setup(struct drm_device *dev) |
853 | { |
||
854 | struct drm_i915_private *dev_priv = dev->dev_private; |
||
855 | struct intel_opregion *opregion = &dev_priv->opregion; |
||
3031 | serge | 856 | void __iomem *base; |
2327 | Serge | 857 | u32 asls, mboxes; |
3031 | serge | 858 | char buf[sizeof(OPREGION_SIGNATURE)]; |
2327 | Serge | 859 | int err = 0; |
860 | |||
861 | pci_read_config_dword(dev->pdev, PCI_ASLS, &asls); |
||
862 | DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); |
||
863 | if (asls == 0) { |
||
864 | DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n"); |
||
865 | return -ENOTSUPP; |
||
866 | } |
||
867 | |||
5060 | serge | 868 | #ifdef CONFIG_ACPI |
869 | INIT_WORK(&opregion->asle_work, asle_work); |
||
870 | #endif |
||
871 | |||
872 | base = acpi_os_ioremap(asls, OPREGION_SIZE); |
||
2327 | Serge | 873 | if (!base) |
874 | return -ENOMEM; |
||
875 | |||
5060 | serge | 876 | memcpy_fromio(buf, base, sizeof(buf)); |
3031 | serge | 877 | |
878 | if (memcmp(buf, OPREGION_SIGNATURE, 16)) { |
||
2327 | Serge | 879 | DRM_DEBUG_DRIVER("opregion signature mismatch\n"); |
880 | err = -EINVAL; |
||
881 | goto err_out; |
||
882 | } |
||
883 | opregion->header = base; |
||
884 | opregion->vbt = base + OPREGION_VBT_OFFSET; |
||
885 | |||
886 | opregion->lid_state = base + ACPI_CLID; |
||
887 | |||
3031 | serge | 888 | mboxes = ioread32(&opregion->header->mboxes); |
2327 | Serge | 889 | if (mboxes & MBOX_ACPI) { |
890 | DRM_DEBUG_DRIVER("Public ACPI methods supported\n"); |
||
891 | opregion->acpi = base + OPREGION_ACPI_OFFSET; |
||
892 | } |
||
893 | |||
894 | if (mboxes & MBOX_SWSCI) { |
||
895 | DRM_DEBUG_DRIVER("SWSCI supported\n"); |
||
896 | opregion->swsci = base + OPREGION_SWSCI_OFFSET; |
||
4560 | Serge | 897 | swsci_setup(dev); |
2327 | Serge | 898 | } |
899 | if (mboxes & MBOX_ASLE) { |
||
900 | DRM_DEBUG_DRIVER("ASLE supported\n"); |
||
901 | opregion->asle = base + OPREGION_ASLE_OFFSET; |
||
4104 | Serge | 902 | |
903 | iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy); |
||
2327 | Serge | 904 | } |
905 | |||
906 | return 0; |
||
907 | |||
908 | err_out: |
||
909 | iounmap(base); |
||
910 | return err; |
||
911 | }><>><>=><=>>31)><31)>>2) |