drivers/gpu/drm/radeon/radeon_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 RADEON_ACPI_H
  25 #define RADEON_ACPI_H
  26
  27 struct radeon_device;
  28 struct acpi_bus_event;
  29
  30 /* AMD hw uses four ACPI control methods:
  31  * 1. ATIF
  32  * ARG0: (ACPI_INTEGER) function code
  33  * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
  34  * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
  35  * ATIF provides an entry point for the gfx driver to interact with the sbios.
  36  * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
  37  * notification. Which notification is used as indicated by the ATIF Control
  38  * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
  39  * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
  40  * to identify pending System BIOS requests and associated parameters. For
  41  * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
  42  * will perform display device detection and invoke ATIF Control Method
  43  * SELECT_ACTIVE_DISPLAYS.
  44  *
  45  * 2. ATPX
  46  * ARG0: (ACPI_INTEGER) function code
  47  * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
  48  * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
  49  * ATPX methods are used on PowerXpress systems to handle mux switching and
  50  * discrete GPU power control.
  51  *
  52  * 3. ATRM
  53  * ARG0: (ACPI_INTEGER) offset of vbios rom data
  54  * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
  55  * OUTPUT: (ACPI_BUFFER) output buffer
  56  * ATRM provides an interfacess to access the discrete GPU vbios image on
  57  * PowerXpress systems with multiple GPUs.
  58  *
  59  * 4. ATCS
  60  * ARG0: (ACPI_INTEGER) function code
  61  * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
  62  * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
  63  * ATCS provides an interface to AMD chipset specific functionality.
  64  *
  65  */
  66 /* ATIF */
  67 #define ATIF_FUNCTION_VERIFY_INTERFACE                             0x0
  68 /* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
  69  * ARG1: none
  70  * OUTPUT:
  71  * WORD  - structure size in bytes (includes size field)
  72  * WORD  - version
  73  * DWORD - supported notifications mask
  74  * DWORD - supported functions bit vector
  75  */
  76 /* Notifications mask */
  77 #       define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED               (1 << 0)
  78 #       define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED        (1 << 1)
  79 #       define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED         (1 << 2)
  80 #       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED    (1 << 3)
  81 #       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED   (1 << 4)
  82 #       define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED          (1 << 5)
  83 #       define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED                (1 << 6)
  84 #       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED      (1 << 7)
  85 #       define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED                   (1 << 8)
  86 /* supported functions vector */
  87 #       define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED               (1 << 0)
  88 #       define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED            (1 << 1)
  89 #       define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED              (1 << 2)
  90 #       define ATIF_GET_LID_STATE_SUPPORTED                       (1 << 3)
  91 #       define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED           (1 << 4)
  92 #       define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED             (1 << 5)
  93 #       define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED  (1 << 6)
  94 #       define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED    (1 << 7)
  95 #       define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED     (1 << 12)
  96 #       define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED           (1 << 14)
  97 #       define ATIF_GET_EXTERNAL_GPU_INFORMATION_SUPPORTED        (1 << 20)
  98 #define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS                        0x1
  99 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
 100  * ARG1: none
 101  * OUTPUT:
 102  * WORD  - structure size in bytes (includes size field)
 103  * DWORD - valid flags mask
 104  * DWORD - flags
 105  *
 106  * OR
 107  *
 108  * WORD  - structure size in bytes (includes size field)
 109  * DWORD - valid flags mask
 110  * DWORD - flags
 111  * BYTE  - notify command code
 112  *
 113  * flags
 114  * bits 1:0:
 115  * 0 - Notify(VGA, 0x81) is not used for notification
 116  * 1 - Notify(VGA, 0x81) is used for notification
 117  * 2 - Notify(VGA, n) is used for notification where
 118  * n (0xd0-0xd9) is specified in notify command code.
 119  * bit 2:
 120  * 1 - lid changes not reported though int10
 121  */
 122 #define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS                     0x2
 123 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
 124  * ARG1: none
 125  * OUTPUT:
 126  * WORD  - structure size in bytes (includes size field)
 127  * DWORD - pending sbios requests
 128  * BYTE  - panel expansion mode
 129  * BYTE  - thermal state: target gfx controller
 130  * BYTE  - thermal state: state id (0: exit state, non-0: state)
 131  * BYTE  - forced power state: target gfx controller
 132  * BYTE  - forced power state: state id
 133  * BYTE  - system power source
 134  * BYTE  - panel backlight level (0-255)
 135  */
 136 /* pending sbios requests */
 137 #       define ATIF_DISPLAY_SWITCH_REQUEST                         (1 << 0)
 138 #       define ATIF_EXPANSION_MODE_CHANGE_REQUEST                  (1 << 1)
 139 #       define ATIF_THERMAL_STATE_CHANGE_REQUEST                   (1 << 2)
 140 #       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST              (1 << 3)
 141 #       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST             (1 << 4)
 142 #       define ATIF_DISPLAY_CONF_CHANGE_REQUEST                    (1 << 5)
 143 #       define ATIF_PX_GFX_SWITCH_REQUEST                          (1 << 6)
 144 #       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST                (1 << 7)
 145 #       define ATIF_DGPU_DISPLAY_EVENT                             (1 << 8)
 146 /* panel expansion mode */
 147 #       define ATIF_PANEL_EXPANSION_DISABLE                        0
 148 #       define ATIF_PANEL_EXPANSION_FULL                           1
 149 #       define ATIF_PANEL_EXPANSION_ASPECT                         2
 150 /* target gfx controller */
 151 #       define ATIF_TARGET_GFX_SINGLE                              0
 152 #       define ATIF_TARGET_GFX_PX_IGPU                             1
 153 #       define ATIF_TARGET_GFX_PX_DGPU                             2
 154 /* system power source */
 155 #       define ATIF_POWER_SOURCE_AC                                1
 156 #       define ATIF_POWER_SOURCE_DC                                2
 157 #       define ATIF_POWER_SOURCE_RESTRICTED_AC_1                   3
 158 #       define ATIF_POWER_SOURCE_RESTRICTED_AC_2                   4
 159 #define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS                       0x3
 160 /* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
 161  * ARG1:
 162  * WORD  - structure size in bytes (includes size field)
 163  * WORD  - selected displays
 164  * WORD  - connected displays
 165  * OUTPUT:
 166  * WORD  - structure size in bytes (includes size field)
 167  * WORD  - selected displays
 168  */
 169 #       define ATIF_LCD1                                           (1 << 0)
 170 #       define ATIF_CRT1                                           (1 << 1)
 171 #       define ATIF_TV                                             (1 << 2)
 172 #       define ATIF_DFP1                                           (1 << 3)
 173 #       define ATIF_CRT2                                           (1 << 4)
 174 #       define ATIF_LCD2                                           (1 << 5)
 175 #       define ATIF_DFP2                                           (1 << 7)
 176 #       define ATIF_CV                                             (1 << 8)
 177 #       define ATIF_DFP3                                           (1 << 9)
 178 #       define ATIF_DFP4                                           (1 << 10)
 179 #       define ATIF_DFP5                                           (1 << 11)
 180 #       define ATIF_DFP6                                           (1 << 12)
 181 #define ATIF_FUNCTION_GET_LID_STATE                                0x4
 182 /* ARG0: ATIF_FUNCTION_GET_LID_STATE
 183  * ARG1: none
 184  * OUTPUT:
 185  * WORD  - structure size in bytes (includes size field)
 186  * BYTE  - lid state (0: open, 1: closed)
 187  *
 188  * GET_LID_STATE only works at boot and resume, for general lid
 189  * status, use the kernel provided status
 190  */
 191 #define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS                    0x5
 192 /* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
 193  * ARG1: none
 194  * OUTPUT:
 195  * WORD  - structure size in bytes (includes size field)
 196  * BYTE  - 0
 197  * BYTE  - TV standard
 198  */
 199 #       define ATIF_TV_STD_NTSC                                    0
 200 #       define ATIF_TV_STD_PAL                                     1
 201 #       define ATIF_TV_STD_PALM                                    2
 202 #       define ATIF_TV_STD_PAL60                                   3
 203 #       define ATIF_TV_STD_NTSCJ                                   4
 204 #       define ATIF_TV_STD_PALCN                                   5
 205 #       define ATIF_TV_STD_PALN                                    6
 206 #       define ATIF_TV_STD_SCART_RGB                               9
 207 #define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS                      0x6
 208 /* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
 209  * ARG1:
 210  * WORD  - structure size in bytes (includes size field)
 211  * BYTE  - 0
 212  * BYTE  - TV standard
 213  * OUTPUT: none
 214  */
 215 #define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS           0x7
 216 /* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
 217  * ARG1: none
 218  * OUTPUT:
 219  * WORD  - structure size in bytes (includes size field)
 220  * BYTE  - panel expansion mode
 221  */
 222 #define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS             0x8
 223 /* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
 224  * ARG1:
 225  * WORD  - structure size in bytes (includes size field)
 226  * BYTE  - panel expansion mode
 227  * OUTPUT: none
 228  */
 229 #define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION              0xD
 230 /* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
 231  * ARG1:
 232  * WORD  - structure size in bytes (includes size field)
 233  * WORD  - gfx controller id
 234  * BYTE  - current temperature (degress Celsius)
 235  * OUTPUT: none
 236  */
 237 #define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES                    0xF
 238 /* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
 239  * ARG1: none
 240  * OUTPUT:
 241  * WORD  - number of gfx devices
 242  * WORD  - device structure size in bytes (excludes device size field)
 243  * DWORD - flags         \
 244  * WORD  - bus number     } repeated structure
 245  * WORD  - device number /
 246  */
 247 /* flags */
 248 #       define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE                   (1 << 0)
 249 #       define ATIF_XGP_PORT                                       (1 << 1)
 250 #       define ATIF_VGA_ENABLED_GRAPHICS_DEVICE                    (1 << 2)
 251 #       define ATIF_XGP_PORT_IN_DOCK                               (1 << 3)
 252 #define ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION                 0x15
 253 /* ARG0: ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION
 254  * ARG1: none
 255  * OUTPUT:
 256  * WORD  - number of reported external gfx devices
 257  * WORD  - device structure size in bytes (excludes device size field)
 258  * WORD  - flags         \
 259  * WORD  - bus number    / repeated structure
 260  */
 261 /* flags */
 262 #       define ATIF_EXTERNAL_GRAPHICS_PORT                         (1 << 0)
 263
 264 /* ATPX */
 265 #define ATPX_FUNCTION_VERIFY_INTERFACE                             0x0
 266 /* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
 267  * ARG1: none
 268  * OUTPUT:
 269  * WORD  - structure size in bytes (includes size field)
 270  * WORD  - version
 271  * DWORD - supported functions bit vector
 272  */
 273 /* supported functions vector */
 274 #       define ATPX_GET_PX_PARAMETERS_SUPPORTED                    (1 << 0)
 275 #       define ATPX_POWER_CONTROL_SUPPORTED                        (1 << 1)
 276 #       define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED                  (1 << 2)
 277 #       define ATPX_I2C_MUX_CONTROL_SUPPORTED                      (1 << 3)
 278 #       define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
 279 #       define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED   (1 << 5)
 280 #       define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED       (1 << 7)
 281 #       define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED          (1 << 8)
 282 #define ATPX_FUNCTION_GET_PX_PARAMETERS                            0x1
 283 /* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
 284  * ARG1: none
 285  * OUTPUT:
 286  * WORD  - structure size in bytes (includes size field)
 287  * DWORD - valid flags mask
 288  * DWORD - flags
 289  */
 290 /* flags */
 291 #       define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 0)
 292 #       define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 1)
 293 #       define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 2)
 294 #       define ATPX_CRT1_RGB_SIGNAL_MUXED                          (1 << 3)
 295 #       define ATPX_TV_SIGNAL_MUXED                                (1 << 4)
 296 #       define ATPX_DFP_SIGNAL_MUXED                               (1 << 5)
 297 #       define ATPX_SEPARATE_MUX_FOR_I2C                           (1 << 6)
 298 #       define ATPX_DYNAMIC_PX_SUPPORTED                           (1 << 7)
 299 #       define ATPX_ACF_NOT_SUPPORTED                              (1 << 8)
 300 #       define ATPX_FIXED_NOT_SUPPORTED                            (1 << 9)
 301 #       define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED               (1 << 10)
 302 #       define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS                    (1 << 11)
 303 #       define ATPX_DGPU_CAN_DRIVE_DISPLAYS                        (1 << 12)
 304 #       define ATPX_MS_HYBRID_GFX_SUPPORTED                        (1 << 14)
 305 #define ATPX_FUNCTION_POWER_CONTROL                                0x2
 306 /* ARG0: ATPX_FUNCTION_POWER_CONTROL
 307  * ARG1:
 308  * WORD  - structure size in bytes (includes size field)
 309  * BYTE  - dGPU power state (0: power off, 1: power on)
 310  * OUTPUT: none
 311  */
 312 #define ATPX_FUNCTION_DISPLAY_MUX_CONTROL                          0x3
 313 /* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
 314  * ARG1:
 315  * WORD  - structure size in bytes (includes size field)
 316  * WORD  - display mux control (0: iGPU, 1: dGPU)
 317  * OUTPUT: none
 318  */
 319 #       define ATPX_INTEGRATED_GPU                                 0
 320 #       define ATPX_DISCRETE_GPU                                   1
 321 #define ATPX_FUNCTION_I2C_MUX_CONTROL                              0x4
 322 /* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
 323  * ARG1:
 324  * WORD  - structure size in bytes (includes size field)
 325  * WORD  - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
 326  * OUTPUT: none
 327  */
 328 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION    0x5
 329 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
 330  * ARG1:
 331  * WORD  - structure size in bytes (includes size field)
 332  * WORD  - target gpu (0: iGPU, 1: dGPU)
 333  * OUTPUT: none
 334  */
 335 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION      0x6
 336 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
 337  * ARG1:
 338  * WORD  - structure size in bytes (includes size field)
 339  * WORD  - target gpu (0: iGPU, 1: dGPU)
 340  * OUTPUT: none
 341  */
 342 #define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING               0x8
 343 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
 344  * ARG1: none
 345  * OUTPUT:
 346  * WORD  - number of display connectors
 347  * WORD  - connector structure size in bytes (excludes connector size field)
 348  * BYTE  - flags                                                     \
 349  * BYTE  - ATIF display vector bit position                           } repeated
 350  * BYTE  - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
 351  * WORD  - connector ACPI id                                         /
 352  */
 353 /* flags */
 354 #       define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE  (1 << 0)
 355 #       define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 1)
 356 #       define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 2)
 357 #define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS                  0x9
 358 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
 359  * ARG1: none
 360  * OUTPUT:
 361  * WORD  - number of HPD/DDC ports
 362  * WORD  - port structure size in bytes (excludes port size field)
 363  * BYTE  - ATIF display vector bit position \
 364  * BYTE  - hpd id                            } reapeated structure
 365  * BYTE  - ddc id                           /
 366  *
 367  * available on A+A systems only
 368  */
 369 /* hpd id */
 370 #       define ATPX_HPD_NONE                                       0
 371 #       define ATPX_HPD1                                           1
 372 #       define ATPX_HPD2                                           2
 373 #       define ATPX_HPD3                                           3
 374 #       define ATPX_HPD4                                           4
 375 #       define ATPX_HPD5                                           5
 376 #       define ATPX_HPD6                                           6
 377 /* ddc id */
 378 #       define ATPX_DDC_NONE                                       0
 379 #       define ATPX_DDC1                                           1
 380 #       define ATPX_DDC2                                           2
 381 #       define ATPX_DDC3                                           3
 382 #       define ATPX_DDC4                                           4
 383 #       define ATPX_DDC5                                           5
 384 #       define ATPX_DDC6                                           6
 385 #       define ATPX_DDC7                                           7
 386 #       define ATPX_DDC8                                           8
 387
 388 /* ATCS */
 389 #define ATCS_FUNCTION_VERIFY_INTERFACE                             0x0
 390 /* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
 391  * ARG1: none
 392  * OUTPUT:
 393  * WORD  - structure size in bytes (includes size field)
 394  * WORD  - version
 395  * DWORD - supported functions bit vector
 396  */
 397 /* supported functions vector */
 398 #       define ATCS_GET_EXTERNAL_STATE_SUPPORTED                   (1 << 0)
 399 #       define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED             (1 << 1)
 400 #       define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED       (1 << 2)
 401 #       define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED                   (1 << 3)
 402 #define ATCS_FUNCTION_GET_EXTERNAL_STATE                           0x1
 403 /* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
 404  * ARG1: none
 405  * OUTPUT:
 406  * WORD  - structure size in bytes (includes size field)
 407  * DWORD - valid flags mask
 408  * DWORD - flags (0: undocked, 1: docked)
 409  */
 410 /* flags */
 411 #       define ATCS_DOCKED                                         (1 << 0)
 412 #define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST                     0x2
 413 /* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
 414  * ARG1:
 415  * WORD  - structure size in bytes (includes size field)
 416  * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
 417  * WORD  - valid flags mask
 418  * WORD  - flags
 419  * BYTE  - request type
 420  * BYTE  - performance request
 421  * OUTPUT:
 422  * WORD  - structure size in bytes (includes size field)
 423  * BYTE  - return value
 424  */
 425 /* flags */
 426 #       define ATCS_ADVERTISE_CAPS                                 (1 << 0)
 427 #       define ATCS_WAIT_FOR_COMPLETION                            (1 << 1)
 428 /* request type */
 429 #       define ATCS_PCIE_LINK_SPEED                                1
 430 /* performance request */
 431 #       define ATCS_REMOVE                                         0
 432 #       define ATCS_FORCE_LOW_POWER                                1
 433 #       define ATCS_PERF_LEVEL_1                                   2 /* PCIE Gen 1 */
 434 #       define ATCS_PERF_LEVEL_2                                   3 /* PCIE Gen 2 */
 435 #       define ATCS_PERF_LEVEL_3                                   4 /* PCIE Gen 3 */
 436 /* return value */
 437 #       define ATCS_REQUEST_REFUSED                                1
 438 #       define ATCS_REQUEST_COMPLETE                               2
 439 #       define ATCS_REQUEST_IN_PROGRESS                            3
 440 #define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION               0x3
 441 /* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
 442  * ARG1: none
 443  * OUTPUT: none
 444  */
 445 #define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH                           0x4
 446 /* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
 447  * ARG1:
 448  * WORD  - structure size in bytes (includes size field)
 449  * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
 450  * BYTE  - number of active lanes
 451  * OUTPUT:
 452  * WORD  - structure size in bytes (includes size field)
 453  * BYTE  - number of active lanes
 454  */
 455
 456 #endif