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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 | |||
2327 | Serge | 30 | //#include |
31 | //#include |
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32 | //#include |
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33 | #include |
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3031 | serge | 34 | |
35 | |||
36 | #include |
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37 | #include |
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2327 | Serge | 38 | #include "i915_drv.h" |
39 | #include "intel_drv.h" |
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40 | |||
41 | #define PCI_ASLE 0xe4 |
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42 | #define PCI_ASLS 0xfc |
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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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66 | } __attribute__((packed)); |
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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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88 | } __attribute__((packed)); |
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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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96 | } __attribute__((packed)); |
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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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112 | u8 rsvd[102]; |
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113 | } __attribute__((packed)); |
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114 | |||
4104 | Serge | 115 | /* Driver readiness indicator */ |
116 | #define ASLE_ARDY_READY (1 << 0) |
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117 | #define ASLE_ARDY_NOT_READY (0 << 0) |
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118 | |||
2327 | Serge | 119 | /* ASLE irq request bits */ |
120 | #define ASLE_SET_ALS_ILLUM (1 << 0) |
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121 | #define ASLE_SET_BACKLIGHT (1 << 1) |
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122 | #define ASLE_SET_PFIT (1 << 2) |
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123 | #define ASLE_SET_PWM_FREQ (1 << 3) |
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124 | #define ASLE_REQ_MSK 0xf |
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125 | |||
126 | /* response bits of ASLE irq request */ |
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127 | #define ASLE_ALS_ILLUM_FAILED (1<<10) |
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128 | #define ASLE_BACKLIGHT_FAILED (1<<12) |
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129 | #define ASLE_PFIT_FAILED (1<<14) |
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130 | #define ASLE_PWM_FREQ_FAILED (1<<16) |
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131 | |||
4104 | Serge | 132 | /* Technology enabled indicator */ |
133 | #define ASLE_TCHE_ALS_EN (1 << 0) |
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134 | #define ASLE_TCHE_BLC_EN (1 << 1) |
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135 | #define ASLE_TCHE_PFIT_EN (1 << 2) |
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136 | #define ASLE_TCHE_PFMB_EN (1 << 3) |
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137 | |||
2327 | Serge | 138 | /* ASLE backlight brightness to set */ |
139 | #define ASLE_BCLP_VALID (1<<31) |
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140 | #define ASLE_BCLP_MSK (~(1<<31)) |
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141 | |||
142 | /* ASLE panel fitting request */ |
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143 | #define ASLE_PFIT_VALID (1<<31) |
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144 | #define ASLE_PFIT_CENTER (1<<0) |
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145 | #define ASLE_PFIT_STRETCH_TEXT (1<<1) |
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146 | #define ASLE_PFIT_STRETCH_GFX (1<<2) |
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147 | |||
148 | /* PWM frequency and minimum brightness */ |
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149 | #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) |
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150 | #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) |
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151 | #define ASLE_PFMB_PWM_MASK (0x7ffffe00) |
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152 | #define ASLE_PFMB_PWM_VALID (1<<31) |
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153 | |||
154 | #define ASLE_CBLV_VALID (1<<31) |
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155 | |||
156 | #define ACPI_OTHER_OUTPUT (0<<8) |
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157 | #define ACPI_VGA_OUTPUT (1<<8) |
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158 | #define ACPI_TV_OUTPUT (2<<8) |
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159 | #define ACPI_DIGITAL_OUTPUT (3<<8) |
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160 | #define ACPI_LVDS_OUTPUT (4<<8) |
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161 | |||
162 | #ifdef CONFIG_ACPI |
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163 | #endif |
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164 | |||
165 | int intel_opregion_setup(struct drm_device *dev) |
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166 | { |
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167 | struct drm_i915_private *dev_priv = dev->dev_private; |
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168 | struct intel_opregion *opregion = &dev_priv->opregion; |
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3031 | serge | 169 | void __iomem *base; |
2327 | Serge | 170 | u32 asls, mboxes; |
3031 | serge | 171 | char buf[sizeof(OPREGION_SIGNATURE)]; |
2327 | Serge | 172 | int err = 0; |
173 | |||
174 | pci_read_config_dword(dev->pdev, PCI_ASLS, &asls); |
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175 | DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls); |
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176 | if (asls == 0) { |
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177 | DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n"); |
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178 | return -ENOTSUPP; |
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179 | } |
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180 | |||
181 | base = ioremap(asls, OPREGION_SIZE); |
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182 | if (!base) |
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183 | return -ENOMEM; |
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184 | |||
3031 | serge | 185 | memcpy(buf, base, sizeof(buf)); |
186 | |||
187 | if (memcmp(buf, OPREGION_SIGNATURE, 16)) { |
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2327 | Serge | 188 | DRM_DEBUG_DRIVER("opregion signature mismatch\n"); |
189 | err = -EINVAL; |
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190 | goto err_out; |
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191 | } |
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192 | opregion->header = base; |
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193 | opregion->vbt = base + OPREGION_VBT_OFFSET; |
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194 | |||
195 | opregion->lid_state = base + ACPI_CLID; |
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196 | |||
3031 | serge | 197 | mboxes = ioread32(&opregion->header->mboxes); |
2327 | Serge | 198 | if (mboxes & MBOX_ACPI) { |
199 | DRM_DEBUG_DRIVER("Public ACPI methods supported\n"); |
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200 | opregion->acpi = base + OPREGION_ACPI_OFFSET; |
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201 | } |
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202 | |||
203 | if (mboxes & MBOX_SWSCI) { |
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204 | DRM_DEBUG_DRIVER("SWSCI supported\n"); |
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205 | opregion->swsci = base + OPREGION_SWSCI_OFFSET; |
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206 | } |
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207 | if (mboxes & MBOX_ASLE) { |
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208 | DRM_DEBUG_DRIVER("ASLE supported\n"); |
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209 | opregion->asle = base + OPREGION_ASLE_OFFSET; |
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4104 | Serge | 210 | |
211 | iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy); |
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2327 | Serge | 212 | } |
213 | |||
214 | return 0; |
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215 | |||
216 | err_out: |
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217 | iounmap(base); |
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218 | return err; |
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219 | }8) |