drivers/gpu/drm/amd/include/amd_acpi.h

   1 /*
   2  * Copyright 2012 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23
  24 #ifndef AMD_ACPI_H
  25 #define AMD_ACPI_H
  26
  27 #define ACPI_AC_CLASS           "ac_adapter"
  28
  29 struct atif_verify_interface {
  30         u16 size;               /* structure size in bytes (includes size field) */
  31         u16 version;            /* version */
  32         u32 notification_mask;  /* supported notifications mask */
  33         u32 function_bits;      /* supported functions bit vector */
  34 } __packed;
  35
  36 struct atif_system_params {
  37         u16 size;               /* structure size in bytes (includes size field) */
  38         u32 valid_mask;         /* valid flags mask */
  39         u32 flags;              /* flags */
  40         u8 command_code;        /* notify command code */
  41 } __packed;
  42
  43 struct atif_sbios_requests {
  44         u16 size;               /* structure size in bytes (includes size field) */
  45         u32 pending;            /* pending sbios requests */
  46         u8 panel_exp_mode;      /* panel expansion mode */
  47         u8 thermal_gfx;         /* thermal state: target gfx controller */
  48         u8 thermal_state;       /* thermal state: state id (0: exit state, non-0: state) */
  49         u8 forced_power_gfx;    /* forced power state: target gfx controller */
  50         u8 forced_power_state;  /* forced power state: state id */
  51         u8 system_power_src;    /* system power source */
  52         u8 backlight_level;     /* panel backlight level (0-255) */
  53 } __packed;
  54
  55 #define ATIF_NOTIFY_MASK        0x3
  56 #define ATIF_NOTIFY_NONE        0
  57 #define ATIF_NOTIFY_81          1
  58 #define ATIF_NOTIFY_N           2
  59
  60 struct atcs_verify_interface {
  61         u16 size;               /* structure size in bytes (includes size field) */
  62         u16 version;            /* version */
  63         u32 function_bits;      /* supported functions bit vector */
  64 } __packed;
  65
  66 #define ATCS_VALID_FLAGS_MASK   0x3
  67
  68 struct atcs_pref_req_input {
  69         u16 size;               /* structure size in bytes (includes size field) */
  70         u16 client_id;          /* client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */
  71         u16 valid_flags_mask;   /* valid flags mask */
  72         u16 flags;              /* flags */
  73         u8 req_type;            /* request type */
  74         u8 perf_req;            /* performance request */
  75 } __packed;
  76
  77 struct atcs_pref_req_output {
  78         u16 size;               /* structure size in bytes (includes size field) */
  79         u8 ret_val;             /* return value */
  80 } __packed;
  81
  82 /* AMD hw uses four ACPI control methods:
  83  * 1. ATIF
  84  * ARG0: (ACPI_INTEGER) function code
  85  * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
  86  * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
  87  * ATIF provides an entry point for the gfx driver to interact with the sbios.
  88  * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
  89  * notification. Which notification is used as indicated by the ATIF Control
  90  * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
  91  * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
  92  * to identify pending System BIOS requests and associated parameters. For
  93  * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
  94  * will perform display device detection and invoke ATIF Control Method
  95  * SELECT_ACTIVE_DISPLAYS.
  96  *
  97  * 2. ATPX
  98  * ARG0: (ACPI_INTEGER) function code
  99  * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
 100  * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
 101  * ATPX methods are used on PowerXpress systems to handle mux switching and
 102  * discrete GPU power control.
 103  *
 104  * 3. ATRM
 105  * ARG0: (ACPI_INTEGER) offset of vbios rom data
 106  * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
 107  * OUTPUT: (ACPI_BUFFER) output buffer
 108  * ATRM provides an interfacess to access the discrete GPU vbios image on
 109  * PowerXpress systems with multiple GPUs.
 110  *
 111  * 4. ATCS
 112  * ARG0: (ACPI_INTEGER) function code
 113  * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
 114  * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
 115  * ATCS provides an interface to AMD chipset specific functionality.
 116  *
 117  */
 118 /* ATIF */
 119 #define ATIF_FUNCTION_VERIFY_INTERFACE                             0x0
 120 /* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
 121  * ARG1: none
 122  * OUTPUT:
 123  * WORD  - structure size in bytes (includes size field)
 124  * WORD  - version
 125  * DWORD - supported notifications mask
 126  * DWORD - supported functions bit vector
 127  */
 128 /* Notifications mask */
 129 #       define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED               (1 << 0)
 130 #       define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED        (1 << 1)
 131 #       define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED         (1 << 2)
 132 #       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED    (1 << 3)
 133 #       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED   (1 << 4)
 134 #       define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED          (1 << 5)
 135 #       define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED                (1 << 6)
 136 #       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED      (1 << 7)
 137 #       define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED                   (1 << 8)
 138 /* supported functions vector */
 139 #       define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED               (1 << 0)
 140 #       define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED            (1 << 1)
 141 #       define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED              (1 << 2)
 142 #       define ATIF_GET_LID_STATE_SUPPORTED                       (1 << 3)
 143 #       define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED           (1 << 4)
 144 #       define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED             (1 << 5)
 145 #       define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED  (1 << 6)
 146 #       define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED    (1 << 7)
 147 #       define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED     (1 << 12)
 148 #       define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED           (1 << 14)
 149 #define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS                        0x1
 150 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
 151  * ARG1: none
 152  * OUTPUT:
 153  * WORD  - structure size in bytes (includes size field)
 154  * DWORD - valid flags mask
 155  * DWORD - flags
 156  *
 157  * OR
 158  *
 159  * WORD  - structure size in bytes (includes size field)
 160  * DWORD - valid flags mask
 161  * DWORD - flags
 162  * BYTE  - notify command code
 163  *
 164  * flags
 165  * bits 1:0:
 166  * 0 - Notify(VGA, 0x81) is not used for notification
 167  * 1 - Notify(VGA, 0x81) is used for notification
 168  * 2 - Notify(VGA, n) is used for notification where
 169  * n (0xd0-0xd9) is specified in notify command code.
 170  * bit 2:
 171  * 1 - lid changes not reported though int10
 172  */
 173 #define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS                     0x2
 174 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
 175  * ARG1: none
 176  * OUTPUT:
 177  * WORD  - structure size in bytes (includes size field)
 178  * DWORD - pending sbios requests
 179  * BYTE  - panel expansion mode
 180  * BYTE  - thermal state: target gfx controller
 181  * BYTE  - thermal state: state id (0: exit state, non-0: state)
 182  * BYTE  - forced power state: target gfx controller
 183  * BYTE  - forced power state: state id
 184  * BYTE  - system power source
 185  * BYTE  - panel backlight level (0-255)
 186  */
 187 /* pending sbios requests */
 188 #       define ATIF_DISPLAY_SWITCH_REQUEST                         (1 << 0)
 189 #       define ATIF_EXPANSION_MODE_CHANGE_REQUEST                  (1 << 1)
 190 #       define ATIF_THERMAL_STATE_CHANGE_REQUEST                   (1 << 2)
 191 #       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST              (1 << 3)
 192 #       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST             (1 << 4)
 193 #       define ATIF_DISPLAY_CONF_CHANGE_REQUEST                    (1 << 5)
 194 #       define ATIF_PX_GFX_SWITCH_REQUEST                          (1 << 6)
 195 #       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST                (1 << 7)
 196 #       define ATIF_DGPU_DISPLAY_EVENT                             (1 << 8)
 197 /* panel expansion mode */
 198 #       define ATIF_PANEL_EXPANSION_DISABLE                        0
 199 #       define ATIF_PANEL_EXPANSION_FULL                           1
 200 #       define ATIF_PANEL_EXPANSION_ASPECT                         2
 201 /* target gfx controller */
 202 #       define ATIF_TARGET_GFX_SINGLE                              0
 203 #       define ATIF_TARGET_GFX_PX_IGPU                             1
 204 #       define ATIF_TARGET_GFX_PX_DGPU                             2
 205 /* system power source */
 206 #       define ATIF_POWER_SOURCE_AC                                1
 207 #       define ATIF_POWER_SOURCE_DC                                2
 208 #       define ATIF_POWER_SOURCE_RESTRICTED_AC_1                   3
 209 #       define ATIF_POWER_SOURCE_RESTRICTED_AC_2                   4
 210 #define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS                       0x3
 211 /* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
 212  * ARG1:
 213  * WORD  - structure size in bytes (includes size field)
 214  * WORD  - selected displays
 215  * WORD  - connected displays
 216  * OUTPUT:
 217  * WORD  - structure size in bytes (includes size field)
 218  * WORD  - selected displays
 219  */
 220 #       define ATIF_LCD1                                           (1 << 0)
 221 #       define ATIF_CRT1                                           (1 << 1)
 222 #       define ATIF_TV                                             (1 << 2)
 223 #       define ATIF_DFP1                                           (1 << 3)
 224 #       define ATIF_CRT2                                           (1 << 4)
 225 #       define ATIF_LCD2                                           (1 << 5)
 226 #       define ATIF_DFP2                                           (1 << 7)
 227 #       define ATIF_CV                                             (1 << 8)
 228 #       define ATIF_DFP3                                           (1 << 9)
 229 #       define ATIF_DFP4                                           (1 << 10)
 230 #       define ATIF_DFP5                                           (1 << 11)
 231 #       define ATIF_DFP6                                           (1 << 12)
 232 #define ATIF_FUNCTION_GET_LID_STATE                                0x4
 233 /* ARG0: ATIF_FUNCTION_GET_LID_STATE
 234  * ARG1: none
 235  * OUTPUT:
 236  * WORD  - structure size in bytes (includes size field)
 237  * BYTE  - lid state (0: open, 1: closed)
 238  *
 239  * GET_LID_STATE only works at boot and resume, for general lid
 240  * status, use the kernel provided status
 241  */
 242 #define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS                    0x5
 243 /* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
 244  * ARG1: none
 245  * OUTPUT:
 246  * WORD  - structure size in bytes (includes size field)
 247  * BYTE  - 0
 248  * BYTE  - TV standard
 249  */
 250 #       define ATIF_TV_STD_NTSC                                    0
 251 #       define ATIF_TV_STD_PAL                                     1
 252 #       define ATIF_TV_STD_PALM                                    2
 253 #       define ATIF_TV_STD_PAL60                                   3
 254 #       define ATIF_TV_STD_NTSCJ                                   4
 255 #       define ATIF_TV_STD_PALCN                                   5
 256 #       define ATIF_TV_STD_PALN                                    6
 257 #       define ATIF_TV_STD_SCART_RGB                               9
 258 #define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS                      0x6
 259 /* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
 260  * ARG1:
 261  * WORD  - structure size in bytes (includes size field)
 262  * BYTE  - 0
 263  * BYTE  - TV standard
 264  * OUTPUT: none
 265  */
 266 #define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS           0x7
 267 /* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
 268  * ARG1: none
 269  * OUTPUT:
 270  * WORD  - structure size in bytes (includes size field)
 271  * BYTE  - panel expansion mode
 272  */
 273 #define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS             0x8
 274 /* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
 275  * ARG1:
 276  * WORD  - structure size in bytes (includes size field)
 277  * BYTE  - panel expansion mode
 278  * OUTPUT: none
 279  */
 280 #define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION              0xD
 281 /* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
 282  * ARG1:
 283  * WORD  - structure size in bytes (includes size field)
 284  * WORD  - gfx controller id
 285  * BYTE  - current temperature (degress Celsius)
 286  * OUTPUT: none
 287  */
 288 #define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES                    0xF
 289 /* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
 290  * ARG1: none
 291  * OUTPUT:
 292  * WORD  - number of gfx devices
 293  * WORD  - device structure size in bytes (excludes device size field)
 294  * DWORD - flags         \
 295  * WORD  - bus number     } repeated structure
 296  * WORD  - device number /
 297  */
 298 /* flags */
 299 #       define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE                   (1 << 0)
 300 #       define ATIF_XGP_PORT                                       (1 << 1)
 301 #       define ATIF_VGA_ENABLED_GRAPHICS_DEVICE                    (1 << 2)
 302 #       define ATIF_XGP_PORT_IN_DOCK                               (1 << 3)
 303
 304 /* ATPX */
 305 #define ATPX_FUNCTION_VERIFY_INTERFACE                             0x0
 306 /* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
 307  * ARG1: none
 308  * OUTPUT:
 309  * WORD  - structure size in bytes (includes size field)
 310  * WORD  - version
 311  * DWORD - supported functions bit vector
 312  */
 313 /* supported functions vector */
 314 #       define ATPX_GET_PX_PARAMETERS_SUPPORTED                    (1 << 0)
 315 #       define ATPX_POWER_CONTROL_SUPPORTED                        (1 << 1)
 316 #       define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED                  (1 << 2)
 317 #       define ATPX_I2C_MUX_CONTROL_SUPPORTED                      (1 << 3)
 318 #       define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
 319 #       define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED   (1 << 5)
 320 #       define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED       (1 << 7)
 321 #       define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED          (1 << 8)
 322 #define ATPX_FUNCTION_GET_PX_PARAMETERS                            0x1
 323 /* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
 324  * ARG1: none
 325  * OUTPUT:
 326  * WORD  - structure size in bytes (includes size field)
 327  * DWORD - valid flags mask
 328  * DWORD - flags
 329  */
 330 /* flags */
 331 #       define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 0)
 332 #       define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 1)
 333 #       define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 2)
 334 #       define ATPX_CRT1_RGB_SIGNAL_MUXED                          (1 << 3)
 335 #       define ATPX_TV_SIGNAL_MUXED                                (1 << 4)
 336 #       define ATPX_DFP_SIGNAL_MUXED                               (1 << 5)
 337 #       define ATPX_SEPARATE_MUX_FOR_I2C                           (1 << 6)
 338 #       define ATPX_DYNAMIC_PX_SUPPORTED                           (1 << 7)
 339 #       define ATPX_ACF_NOT_SUPPORTED                              (1 << 8)
 340 #       define ATPX_FIXED_NOT_SUPPORTED                            (1 << 9)
 341 #       define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED               (1 << 10)
 342 #       define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS                    (1 << 11)
 343 #       define ATPX_DGPU_CAN_DRIVE_DISPLAYS                        (1 << 12)
 344 #       define ATPX_MS_HYBRID_GFX_SUPPORTED                        (1 << 14)
 345 #define ATPX_FUNCTION_POWER_CONTROL                                0x2
 346 /* ARG0: ATPX_FUNCTION_POWER_CONTROL
 347  * ARG1:
 348  * WORD  - structure size in bytes (includes size field)
 349  * BYTE  - dGPU power state (0: power off, 1: power on)
 350  * OUTPUT: none
 351  */
 352 #define ATPX_FUNCTION_DISPLAY_MUX_CONTROL                          0x3
 353 /* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
 354  * ARG1:
 355  * WORD  - structure size in bytes (includes size field)
 356  * WORD  - display mux control (0: iGPU, 1: dGPU)
 357  * OUTPUT: none
 358  */
 359 #       define ATPX_INTEGRATED_GPU                                 0
 360 #       define ATPX_DISCRETE_GPU                                   1
 361 #define ATPX_FUNCTION_I2C_MUX_CONTROL                              0x4
 362 /* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
 363  * ARG1:
 364  * WORD  - structure size in bytes (includes size field)
 365  * WORD  - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
 366  * OUTPUT: none
 367  */
 368 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION    0x5
 369 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
 370  * ARG1:
 371  * WORD  - structure size in bytes (includes size field)
 372  * WORD  - target gpu (0: iGPU, 1: dGPU)
 373  * OUTPUT: none
 374  */
 375 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION      0x6
 376 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
 377  * ARG1:
 378  * WORD  - structure size in bytes (includes size field)
 379  * WORD  - target gpu (0: iGPU, 1: dGPU)
 380  * OUTPUT: none
 381  */
 382 #define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING               0x8
 383 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
 384  * ARG1: none
 385  * OUTPUT:
 386  * WORD  - number of display connectors
 387  * WORD  - connector structure size in bytes (excludes connector size field)
 388  * BYTE  - flags                                                     \
 389  * BYTE  - ATIF display vector bit position                           } repeated
 390  * BYTE  - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
 391  * WORD  - connector ACPI id                                         /
 392  */
 393 /* flags */
 394 #       define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE  (1 << 0)
 395 #       define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 1)
 396 #       define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 2)
 397 #define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS                  0x9
 398 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
 399  * ARG1: none
 400  * OUTPUT:
 401  * WORD  - number of HPD/DDC ports
 402  * WORD  - port structure size in bytes (excludes port size field)
 403  * BYTE  - ATIF display vector bit position \
 404  * BYTE  - hpd id                            } reapeated structure
 405  * BYTE  - ddc id                           /
 406  *
 407  * available on A+A systems only
 408  */
 409 /* hpd id */
 410 #       define ATPX_HPD_NONE                                       0
 411 #       define ATPX_HPD1                                           1
 412 #       define ATPX_HPD2                                           2
 413 #       define ATPX_HPD3                                           3
 414 #       define ATPX_HPD4                                           4
 415 #       define ATPX_HPD5                                           5
 416 #       define ATPX_HPD6                                           6
 417 /* ddc id */
 418 #       define ATPX_DDC_NONE                                       0
 419 #       define ATPX_DDC1                                           1
 420 #       define ATPX_DDC2                                           2
 421 #       define ATPX_DDC3                                           3
 422 #       define ATPX_DDC4                                           4
 423 #       define ATPX_DDC5                                           5
 424 #       define ATPX_DDC6                                           6
 425 #       define ATPX_DDC7                                           7
 426 #       define ATPX_DDC8                                           8
 427
 428 /* ATCS */
 429 #define ATCS_FUNCTION_VERIFY_INTERFACE                             0x0
 430 /* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
 431  * ARG1: none
 432  * OUTPUT:
 433  * WORD  - structure size in bytes (includes size field)
 434  * WORD  - version
 435  * DWORD - supported functions bit vector
 436  */
 437 /* supported functions vector */
 438 #       define ATCS_GET_EXTERNAL_STATE_SUPPORTED                   (1 << 0)
 439 #       define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED             (1 << 1)
 440 #       define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED       (1 << 2)
 441 #       define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED                   (1 << 3)
 442 #define ATCS_FUNCTION_GET_EXTERNAL_STATE                           0x1
 443 /* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
 444  * ARG1: none
 445  * OUTPUT:
 446  * WORD  - structure size in bytes (includes size field)
 447  * DWORD - valid flags mask
 448  * DWORD - flags (0: undocked, 1: docked)
 449  */
 450 /* flags */
 451 #       define ATCS_DOCKED                                         (1 << 0)
 452 #define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST                     0x2
 453 /* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
 454  * ARG1:
 455  * WORD  - structure size in bytes (includes size field)
 456  * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
 457  * WORD  - valid flags mask
 458  * WORD  - flags
 459  * BYTE  - request type
 460  * BYTE  - performance request
 461  * OUTPUT:
 462  * WORD  - structure size in bytes (includes size field)
 463  * BYTE  - return value
 464  */
 465 /* flags */
 466 #       define ATCS_ADVERTISE_CAPS                                 (1 << 0)
 467 #       define ATCS_WAIT_FOR_COMPLETION                            (1 << 1)
 468 /* request type */
 469 #       define ATCS_PCIE_LINK_SPEED                                1
 470 /* performance request */
 471 #       define ATCS_REMOVE                                         0
 472 #       define ATCS_FORCE_LOW_POWER                                1
 473 #       define ATCS_PERF_LEVEL_1                                   2 /* PCIE Gen 1 */
 474 #       define ATCS_PERF_LEVEL_2                                   3 /* PCIE Gen 2 */
 475 #       define ATCS_PERF_LEVEL_3                                   4 /* PCIE Gen 3 */
 476 /* return value */
 477 #       define ATCS_REQUEST_REFUSED                                1
 478 #       define ATCS_REQUEST_COMPLETE                               2
 479 #       define ATCS_REQUEST_IN_PROGRESS                            3
 480 #define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION               0x3
 481 /* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
 482  * ARG1: none
 483  * OUTPUT: none
 484  */
 485 #define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH                           0x4
 486 /* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
 487  * ARG1:
 488  * WORD  - structure size in bytes (includes size field)
 489  * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
 490  * BYTE  - number of active lanes
 491  * OUTPUT:
 492  * WORD  - structure size in bytes (includes size field)
 493  * BYTE  - number of active lanes
 494  */
 495
 496 #endif