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