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 int radeon_atif_handler(struct radeon_device *rdev,
  31                 struct acpi_bus_event *event);
  32
  33 /* AMD hw uses four ACPI control methods:
  34  * 1. ATIF
  35  * ARG0: (ACPI_INTEGER) function code
  36  * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
  37  * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
  38  * ATIF provides an entry point for the gfx driver to interact with the sbios.
  39  * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
  40  * notification. Which notification is used as indicated by the ATIF Control
  41  * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
  42  * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
  43  * to identify pending System BIOS requests and associated parameters. For
  44  * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
  45  * will perform display device detection and invoke ATIF Control Method
  46  * SELECT_ACTIVE_DISPLAYS.
  47  *
  48  * 2. ATPX
  49  * ARG0: (ACPI_INTEGER) function code
  50  * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
  51  * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
  52  * ATPX methods are used on PowerXpress systems to handle mux switching and
  53  * discrete GPU power control.
  54  *
  55  * 3. ATRM
  56  * ARG0: (ACPI_INTEGER) offset of vbios rom data
  57  * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
  58  * OUTPUT: (ACPI_BUFFER) output buffer
  59  * ATRM provides an interfacess to access the discrete GPU vbios image on
  60  * PowerXpress systems with multiple GPUs.
  61  *
  62  * 4. ATCS
  63  * ARG0: (ACPI_INTEGER) function code
  64  * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
  65  * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
  66  * ATCS provides an interface to AMD chipset specific functionality.
  67  *
  68  */
  69 /* ATIF */
  70 #define ATIF_FUNCTION_VERIFY_INTERFACE                             0x0
  71 /* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
  72  * ARG1: none
  73  * OUTPUT:
  74  * WORD  - structure size in bytes (includes size field)
  75  * WORD  - version
  76  * DWORD - supported notifications mask
  77  * DWORD - supported functions bit vector
  78  */
  79 /* Notifications mask */
  80 #       define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED               (1 << 0)
  81 #       define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED        (1 << 1)
  82 #       define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED         (1 << 2)
  83 #       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED    (1 << 3)
  84 #       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED   (1 << 4)
  85 #       define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED          (1 << 5)
  86 #       define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED                (1 << 6)
  87 #       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED      (1 << 7)
  88 #       define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED                   (1 << 8)
  89 /* supported functions vector */
  90 #       define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED               (1 << 0)
  91 #       define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED            (1 << 1)
  92 #       define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED              (1 << 2)
  93 #       define ATIF_GET_LID_STATE_SUPPORTED                       (1 << 3)
  94 #       define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED           (1 << 4)
  95 #       define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED             (1 << 5)
  96 #       define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED  (1 << 6)
  97 #       define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED    (1 << 7)
  98 #       define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED     (1 << 12)
  99 #       define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED           (1 << 14)
 100 #       define ATIF_GET_EXTERNAL_GPU_INFORMATION_SUPPORTED        (1 << 20)
 101 #define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS                        0x1
 102 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
 103  * ARG1: none
 104  * OUTPUT:
 105  * WORD  - structure size in bytes (includes size field)
 106  * DWORD - valid flags mask
 107  * DWORD - flags
 108  *
 109  * OR
 110  *
 111  * WORD  - structure size in bytes (includes size field)
 112  * DWORD - valid flags mask
 113  * DWORD - flags
 114  * BYTE  - notify command code
 115  *
 116  * flags
 117  * bits 1:0:
 118  * 0 - Notify(VGA, 0x81) is not used for notification
 119  * 1 - Notify(VGA, 0x81) is used for notification
 120  * 2 - Notify(VGA, n) is used for notification where
 121  * n (0xd0-0xd9) is specified in notify command code.
 122  * bit 2:
 123  * 1 - lid changes not reported though int10
 124  */
 125 #define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS                     0x2
 126 /* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
 127  * ARG1: none
 128  * OUTPUT:
 129  * WORD  - structure size in bytes (includes size field)
 130  * DWORD - pending sbios requests
 131  * BYTE  - panel expansion mode
 132  * BYTE  - thermal state: target gfx controller
 133  * BYTE  - thermal state: state id (0: exit state, non-0: state)
 134  * BYTE  - forced power state: target gfx controller
 135  * BYTE  - forced power state: state id
 136  * BYTE  - system power source
 137  * BYTE  - panel backlight level (0-255)
 138  */
 139 /* pending sbios requests */
 140 #       define ATIF_DISPLAY_SWITCH_REQUEST                         (1 << 0)
 141 #       define ATIF_EXPANSION_MODE_CHANGE_REQUEST                  (1 << 1)
 142 #       define ATIF_THERMAL_STATE_CHANGE_REQUEST                   (1 << 2)
 143 #       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST              (1 << 3)
 144 #       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST             (1 << 4)
 145 #       define ATIF_DISPLAY_CONF_CHANGE_REQUEST                    (1 << 5)
 146 #       define ATIF_PX_GFX_SWITCH_REQUEST                          (1 << 6)
 147 #       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST                (1 << 7)
 148 #       define ATIF_DGPU_DISPLAY_EVENT                             (1 << 8)
 149 /* panel expansion mode */
 150 #       define ATIF_PANEL_EXPANSION_DISABLE                        0
 151 #       define ATIF_PANEL_EXPANSION_FULL                           1
 152 #       define ATIF_PANEL_EXPANSION_ASPECT                         2
 153 /* target gfx controller */
 154 #       define ATIF_TARGET_GFX_SINGLE                              0
 155 #       define ATIF_TARGET_GFX_PX_IGPU                             1
 156 #       define ATIF_TARGET_GFX_PX_DGPU                             2
 157 /* system power source */
 158 #       define ATIF_POWER_SOURCE_AC                                1
 159 #       define ATIF_POWER_SOURCE_DC                                2
 160 #       define ATIF_POWER_SOURCE_RESTRICTED_AC_1                   3
 161 #       define ATIF_POWER_SOURCE_RESTRICTED_AC_2                   4
 162 #define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS                       0x3
 163 /* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
 164  * ARG1:
 165  * WORD  - structure size in bytes (includes size field)
 166  * WORD  - selected displays
 167  * WORD  - connected displays
 168  * OUTPUT:
 169  * WORD  - structure size in bytes (includes size field)
 170  * WORD  - selected displays
 171  */
 172 #       define ATIF_LCD1                                           (1 << 0)
 173 #       define ATIF_CRT1                                           (1 << 1)
 174 #       define ATIF_TV                                             (1 << 2)
 175 #       define ATIF_DFP1                                           (1 << 3)
 176 #       define ATIF_CRT2                                           (1 << 4)
 177 #       define ATIF_LCD2                                           (1 << 5)
 178 #       define ATIF_DFP2                                           (1 << 7)
 179 #       define ATIF_CV                                             (1 << 8)
 180 #       define ATIF_DFP3                                           (1 << 9)
 181 #       define ATIF_DFP4                                           (1 << 10)
 182 #       define ATIF_DFP5                                           (1 << 11)
 183 #       define ATIF_DFP6                                           (1 << 12)
 184 #define ATIF_FUNCTION_GET_LID_STATE                                0x4
 185 /* ARG0: ATIF_FUNCTION_GET_LID_STATE
 186  * ARG1: none
 187  * OUTPUT:
 188  * WORD  - structure size in bytes (includes size field)
 189  * BYTE  - lid state (0: open, 1: closed)
 190  *
 191  * GET_LID_STATE only works at boot and resume, for general lid
 192  * status, use the kernel provided status
 193  */
 194 #define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS                    0x5
 195 /* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
 196  * ARG1: none
 197  * OUTPUT:
 198  * WORD  - structure size in bytes (includes size field)
 199  * BYTE  - 0
 200  * BYTE  - TV standard
 201  */
 202 #       define ATIF_TV_STD_NTSC                                    0
 203 #       define ATIF_TV_STD_PAL                                     1
 204 #       define ATIF_TV_STD_PALM                                    2
 205 #       define ATIF_TV_STD_PAL60                                   3
 206 #       define ATIF_TV_STD_NTSCJ                                   4
 207 #       define ATIF_TV_STD_PALCN                                   5
 208 #       define ATIF_TV_STD_PALN                                    6
 209 #       define ATIF_TV_STD_SCART_RGB                               9
 210 #define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS                      0x6
 211 /* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
 212  * ARG1:
 213  * WORD  - structure size in bytes (includes size field)
 214  * BYTE  - 0
 215  * BYTE  - TV standard
 216  * OUTPUT: none
 217  */
 218 #define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS           0x7
 219 /* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
 220  * ARG1: none
 221  * OUTPUT:
 222  * WORD  - structure size in bytes (includes size field)
 223  * BYTE  - panel expansion mode
 224  */
 225 #define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS             0x8
 226 /* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
 227  * ARG1:
 228  * WORD  - structure size in bytes (includes size field)
 229  * BYTE  - panel expansion mode
 230  * OUTPUT: none
 231  */
 232 #define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION              0xD
 233 /* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
 234  * ARG1:
 235  * WORD  - structure size in bytes (includes size field)
 236  * WORD  - gfx controller id
 237  * BYTE  - current temperature (degress Celsius)
 238  * OUTPUT: none
 239  */
 240 #define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES                    0xF
 241 /* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
 242  * ARG1: none
 243  * OUTPUT:
 244  * WORD  - number of gfx devices
 245  * WORD  - device structure size in bytes (excludes device size field)
 246  * DWORD - flags         \
 247  * WORD  - bus number     } repeated structure
 248  * WORD  - device number /
 249  */
 250 /* flags */
 251 #       define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE                   (1 << 0)
 252 #       define ATIF_XGP_PORT                                       (1 << 1)
 253 #       define ATIF_VGA_ENABLED_GRAPHICS_DEVICE                    (1 << 2)
 254 #       define ATIF_XGP_PORT_IN_DOCK                               (1 << 3)
 255 #define ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION                 0x15
 256 /* ARG0: ATIF_FUNCTION_GET_EXTERNAL_GPU_INFORMATION
 257  * ARG1: none
 258  * OUTPUT:
 259  * WORD  - number of reported external gfx devices
 260  * WORD  - device structure size in bytes (excludes device size field)
 261  * WORD  - flags         \
 262  * WORD  - bus number    / repeated structure
 263  */
 264 /* flags */
 265 #       define ATIF_EXTERNAL_GRAPHICS_PORT                         (1 << 0)
 266
 267 /* ATPX */
 268 #define ATPX_FUNCTION_VERIFY_INTERFACE                             0x0
 269 /* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
 270  * ARG1: none
 271  * OUTPUT:
 272  * WORD  - structure size in bytes (includes size field)
 273  * WORD  - version
 274  * DWORD - supported functions bit vector
 275  */
 276 /* supported functions vector */
 277 #       define ATPX_GET_PX_PARAMETERS_SUPPORTED                    (1 << 0)
 278 #       define ATPX_POWER_CONTROL_SUPPORTED                        (1 << 1)
 279 #       define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED                  (1 << 2)
 280 #       define ATPX_I2C_MUX_CONTROL_SUPPORTED                      (1 << 3)
 281 #       define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
 282 #       define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED   (1 << 5)
 283 #       define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED       (1 << 7)
 284 #       define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED          (1 << 8)
 285 #define ATPX_FUNCTION_GET_PX_PARAMETERS                            0x1
 286 /* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
 287  * ARG1: none
 288  * OUTPUT:
 289  * WORD  - structure size in bytes (includes size field)
 290  * DWORD - valid flags mask
 291  * DWORD - flags
 292  */
 293 /* flags */
 294 #       define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 0)
 295 #       define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 1)
 296 #       define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 2)
 297 #       define ATPX_CRT1_RGB_SIGNAL_MUXED                          (1 << 3)
 298 #       define ATPX_TV_SIGNAL_MUXED                                (1 << 4)
 299 #       define ATPX_DFP_SIGNAL_MUXED                               (1 << 5)
 300 #       define ATPX_SEPARATE_MUX_FOR_I2C                           (1 << 6)
 301 #       define ATPX_DYNAMIC_PX_SUPPORTED                           (1 << 7)
 302 #       define ATPX_ACF_NOT_SUPPORTED                              (1 << 8)
 303 #       define ATPX_FIXED_NOT_SUPPORTED                            (1 << 9)
 304 #       define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED               (1 << 10)
 305 #       define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS                    (1 << 11)
 306 #       define ATPX_DGPU_CAN_DRIVE_DISPLAYS                        (1 << 12)
 307 #       define ATPX_MS_HYBRID_GFX_SUPPORTED                        (1 << 14)
 308 #define ATPX_FUNCTION_POWER_CONTROL                                0x2
 309 /* ARG0: ATPX_FUNCTION_POWER_CONTROL
 310  * ARG1:
 311  * WORD  - structure size in bytes (includes size field)
 312  * BYTE  - dGPU power state (0: power off, 1: power on)
 313  * OUTPUT: none
 314  */
 315 #define ATPX_FUNCTION_DISPLAY_MUX_CONTROL                          0x3
 316 /* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
 317  * ARG1:
 318  * WORD  - structure size in bytes (includes size field)
 319  * WORD  - display mux control (0: iGPU, 1: dGPU)
 320  * OUTPUT: none
 321  */
 322 #       define ATPX_INTEGRATED_GPU                                 0
 323 #       define ATPX_DISCRETE_GPU                                   1
 324 #define ATPX_FUNCTION_I2C_MUX_CONTROL                              0x4
 325 /* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
 326  * ARG1:
 327  * WORD  - structure size in bytes (includes size field)
 328  * WORD  - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
 329  * OUTPUT: none
 330  */
 331 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION    0x5
 332 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
 333  * ARG1:
 334  * WORD  - structure size in bytes (includes size field)
 335  * WORD  - target gpu (0: iGPU, 1: dGPU)
 336  * OUTPUT: none
 337  */
 338 #define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION      0x6
 339 /* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
 340  * ARG1:
 341  * WORD  - structure size in bytes (includes size field)
 342  * WORD  - target gpu (0: iGPU, 1: dGPU)
 343  * OUTPUT: none
 344  */
 345 #define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING               0x8
 346 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
 347  * ARG1: none
 348  * OUTPUT:
 349  * WORD  - number of display connectors
 350  * WORD  - connector structure size in bytes (excludes connector size field)
 351  * BYTE  - flags                                                     \
 352  * BYTE  - ATIF display vector bit position                           } repeated
 353  * BYTE  - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
 354  * WORD  - connector ACPI id                                         /
 355  */
 356 /* flags */
 357 #       define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE  (1 << 0)
 358 #       define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 1)
 359 #       define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 2)
 360 #define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS                  0x9
 361 /* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
 362  * ARG1: none
 363  * OUTPUT:
 364  * WORD  - number of HPD/DDC ports
 365  * WORD  - port structure size in bytes (excludes port size field)
 366  * BYTE  - ATIF display vector bit position \
 367  * BYTE  - hpd id                            } reapeated structure
 368  * BYTE  - ddc id                           /
 369  *
 370  * available on A+A systems only
 371  */
 372 /* hpd id */
 373 #       define ATPX_HPD_NONE                                       0
 374 #       define ATPX_HPD1                                           1
 375 #       define ATPX_HPD2                                           2
 376 #       define ATPX_HPD3                                           3
 377 #       define ATPX_HPD4                                           4
 378 #       define ATPX_HPD5                                           5
 379 #       define ATPX_HPD6                                           6
 380 /* ddc id */
 381 #       define ATPX_DDC_NONE                                       0
 382 #       define ATPX_DDC1                                           1
 383 #       define ATPX_DDC2                                           2
 384 #       define ATPX_DDC3                                           3
 385 #       define ATPX_DDC4                                           4
 386 #       define ATPX_DDC5                                           5
 387 #       define ATPX_DDC6                                           6
 388 #       define ATPX_DDC7                                           7
 389 #       define ATPX_DDC8                                           8
 390
 391 /* ATCS */
 392 #define ATCS_FUNCTION_VERIFY_INTERFACE                             0x0
 393 /* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
 394  * ARG1: none
 395  * OUTPUT:
 396  * WORD  - structure size in bytes (includes size field)
 397  * WORD  - version
 398  * DWORD - supported functions bit vector
 399  */
 400 /* supported functions vector */
 401 #       define ATCS_GET_EXTERNAL_STATE_SUPPORTED                   (1 << 0)
 402 #       define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED             (1 << 1)
 403 #       define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED       (1 << 2)
 404 #       define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED                   (1 << 3)
 405 #define ATCS_FUNCTION_GET_EXTERNAL_STATE                           0x1
 406 /* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
 407  * ARG1: none
 408  * OUTPUT:
 409  * WORD  - structure size in bytes (includes size field)
 410  * DWORD - valid flags mask
 411  * DWORD - flags (0: undocked, 1: docked)
 412  */
 413 /* flags */
 414 #       define ATCS_DOCKED                                         (1 << 0)
 415 #define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST                     0x2
 416 /* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
 417  * ARG1:
 418  * WORD  - structure size in bytes (includes size field)
 419  * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
 420  * WORD  - valid flags mask
 421  * WORD  - flags
 422  * BYTE  - request type
 423  * BYTE  - performance request
 424  * OUTPUT:
 425  * WORD  - structure size in bytes (includes size field)
 426  * BYTE  - return value
 427  */
 428 /* flags */
 429 #       define ATCS_ADVERTISE_CAPS                                 (1 << 0)
 430 #       define ATCS_WAIT_FOR_COMPLETION                            (1 << 1)
 431 /* request type */
 432 #       define ATCS_PCIE_LINK_SPEED                                1
 433 /* performance request */
 434 #       define ATCS_REMOVE                                         0
 435 #       define ATCS_FORCE_LOW_POWER                                1
 436 #       define ATCS_PERF_LEVEL_1                                   2 /* PCIE Gen 1 */
 437 #       define ATCS_PERF_LEVEL_2                                   3 /* PCIE Gen 2 */
 438 #       define ATCS_PERF_LEVEL_3                                   4 /* PCIE Gen 3 */
 439 /* return value */
 440 #       define ATCS_REQUEST_REFUSED                                1
 441 #       define ATCS_REQUEST_COMPLETE                               2
 442 #       define ATCS_REQUEST_IN_PROGRESS                            3
 443 #define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION               0x3
 444 /* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
 445  * ARG1: none
 446  * OUTPUT: none
 447  */
 448 #define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH                           0x4
 449 /* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
 450  * ARG1:
 451  * WORD  - structure size in bytes (includes size field)
 452  * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
 453  * BYTE  - number of active lanes
 454  * OUTPUT:
 455  * WORD  - structure size in bytes (includes size field)
 456  * BYTE  - number of active lanes
 457  */
 458
 459 #endif