include/linux/greybus/greybus_protocols.h

   1 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
   2 /*
   3  * Copyright(c) 2014 - 2015 Google Inc. All rights reserved.
   4  * Copyright(c) 2014 - 2015 Linaro Ltd. All rights reserved.
   5  */
   6
   7 #ifndef __GREYBUS_PROTOCOLS_H
   8 #define __GREYBUS_PROTOCOLS_H
   9
  10 #include <linux/types.h>
  11
  12 /* Fixed IDs for control/svc protocols */
  13
  14 /* SVC switch-port device ids */
  15 #define GB_SVC_DEVICE_ID_SVC                    0
  16 #define GB_SVC_DEVICE_ID_AP                     1
  17 #define GB_SVC_DEVICE_ID_MIN                    2
  18 #define GB_SVC_DEVICE_ID_MAX                    31
  19
  20 #define GB_SVC_CPORT_ID                         0
  21 #define GB_CONTROL_BUNDLE_ID                    0
  22 #define GB_CONTROL_CPORT_ID                     0
  23
  24
  25 /*
  26  * All operation messages (both requests and responses) begin with
  27  * a header that encodes the size of the message (header included).
  28  * This header also contains a unique identifier, that associates a
  29  * response message with its operation.  The header contains an
  30  * operation type field, whose interpretation is dependent on what
  31  * type of protocol is used over the connection.  The high bit
  32  * (0x80) of the operation type field is used to indicate whether
  33  * the message is a request (clear) or a response (set).
  34  *
  35  * Response messages include an additional result byte, which
  36  * communicates the result of the corresponding request.  A zero
  37  * result value means the operation completed successfully.  Any
  38  * other value indicates an error; in this case, the payload of the
  39  * response message (if any) is ignored.  The result byte must be
  40  * zero in the header for a request message.
  41  *
  42  * The wire format for all numeric fields in the header is little
  43  * endian.  Any operation-specific data begins immediately after the
  44  * header.
  45  */
  46 struct gb_operation_msg_hdr {
  47         __le16  size;           /* Size in bytes of header + payload */
  48         __le16  operation_id;   /* Operation unique id */
  49         __u8    type;           /* E.g GB_I2C_TYPE_* or GB_GPIO_TYPE_* */
  50         __u8    result;         /* Result of request (in responses only) */
  51         __u8    pad[2];         /* must be zero (ignore when read) */
  52 } __packed;
  53
  54
  55 /* Generic request types */
  56 #define GB_REQUEST_TYPE_CPORT_SHUTDOWN          0x00
  57 #define GB_REQUEST_TYPE_INVALID                 0x7f
  58
  59 struct gb_cport_shutdown_request {
  60         __u8 phase;
  61 } __packed;
  62
  63
  64 /* Control Protocol */
  65
  66 /* Greybus control request types */
  67 #define GB_CONTROL_TYPE_VERSION                 0x01
  68 #define GB_CONTROL_TYPE_PROBE_AP                0x02
  69 #define GB_CONTROL_TYPE_GET_MANIFEST_SIZE       0x03
  70 #define GB_CONTROL_TYPE_GET_MANIFEST            0x04
  71 #define GB_CONTROL_TYPE_CONNECTED               0x05
  72 #define GB_CONTROL_TYPE_DISCONNECTED            0x06
  73 #define GB_CONTROL_TYPE_TIMESYNC_ENABLE         0x07
  74 #define GB_CONTROL_TYPE_TIMESYNC_DISABLE        0x08
  75 #define GB_CONTROL_TYPE_TIMESYNC_AUTHORITATIVE  0x09
  76 /*      Unused                                  0x0a */
  77 #define GB_CONTROL_TYPE_BUNDLE_VERSION          0x0b
  78 #define GB_CONTROL_TYPE_DISCONNECTING           0x0c
  79 #define GB_CONTROL_TYPE_TIMESYNC_GET_LAST_EVENT 0x0d
  80 #define GB_CONTROL_TYPE_MODE_SWITCH             0x0e
  81 #define GB_CONTROL_TYPE_BUNDLE_SUSPEND          0x0f
  82 #define GB_CONTROL_TYPE_BUNDLE_RESUME           0x10
  83 #define GB_CONTROL_TYPE_BUNDLE_DEACTIVATE       0x11
  84 #define GB_CONTROL_TYPE_BUNDLE_ACTIVATE         0x12
  85 #define GB_CONTROL_TYPE_INTF_SUSPEND_PREPARE            0x13
  86 #define GB_CONTROL_TYPE_INTF_DEACTIVATE_PREPARE 0x14
  87 #define GB_CONTROL_TYPE_INTF_HIBERNATE_ABORT    0x15
  88
  89 struct gb_control_version_request {
  90         __u8    major;
  91         __u8    minor;
  92 } __packed;
  93
  94 struct gb_control_version_response {
  95         __u8    major;
  96         __u8    minor;
  97 } __packed;
  98
  99 struct gb_control_bundle_version_request {
 100         __u8    bundle_id;
 101 } __packed;
 102
 103 struct gb_control_bundle_version_response {
 104         __u8    major;
 105         __u8    minor;
 106 } __packed;
 107
 108 /* Control protocol manifest get size request has no payload*/
 109 struct gb_control_get_manifest_size_response {
 110         __le16                  size;
 111 } __packed;
 112
 113 /* Control protocol manifest get request has no payload */
 114 struct gb_control_get_manifest_response {
 115         __u8                    data[0];
 116 } __packed;
 117
 118 /* Control protocol [dis]connected request */
 119 struct gb_control_connected_request {
 120         __le16                  cport_id;
 121 } __packed;
 122
 123 struct gb_control_disconnecting_request {
 124         __le16                  cport_id;
 125 } __packed;
 126 /* disconnecting response has no payload */
 127
 128 struct gb_control_disconnected_request {
 129         __le16                  cport_id;
 130 } __packed;
 131 /* Control protocol [dis]connected response has no payload */
 132
 133 /*
 134  * All Bundle power management operations use the same request and response
 135  * layout and status codes.
 136  */
 137
 138 #define GB_CONTROL_BUNDLE_PM_OK         0x00
 139 #define GB_CONTROL_BUNDLE_PM_INVAL      0x01
 140 #define GB_CONTROL_BUNDLE_PM_BUSY       0x02
 141 #define GB_CONTROL_BUNDLE_PM_FAIL       0x03
 142 #define GB_CONTROL_BUNDLE_PM_NA         0x04
 143
 144 struct gb_control_bundle_pm_request {
 145         __u8    bundle_id;
 146 } __packed;
 147
 148 struct gb_control_bundle_pm_response {
 149         __u8    status;
 150 } __packed;
 151
 152 /*
 153  * Interface Suspend Prepare and Deactivate Prepare operations use the same
 154  * response layout and error codes. Define a single response structure and reuse
 155  * it. Both operations have no payload.
 156  */
 157
 158 #define GB_CONTROL_INTF_PM_OK           0x00
 159 #define GB_CONTROL_INTF_PM_BUSY         0x01
 160 #define GB_CONTROL_INTF_PM_NA           0x02
 161
 162 struct gb_control_intf_pm_response {
 163         __u8    status;
 164 } __packed;
 165
 166 /* APBridge protocol */
 167
 168 /* request APB1 log */
 169 #define GB_APB_REQUEST_LOG                      0x02
 170
 171 /* request to map a cport to bulk in and bulk out endpoints */
 172 #define GB_APB_REQUEST_EP_MAPPING               0x03
 173
 174 /* request to get the number of cports available */
 175 #define GB_APB_REQUEST_CPORT_COUNT              0x04
 176
 177 /* request to reset a cport state */
 178 #define GB_APB_REQUEST_RESET_CPORT              0x05
 179
 180 /* request to time the latency of messages on a given cport */
 181 #define GB_APB_REQUEST_LATENCY_TAG_EN           0x06
 182 #define GB_APB_REQUEST_LATENCY_TAG_DIS          0x07
 183
 184 /* request to control the CSI transmitter */
 185 #define GB_APB_REQUEST_CSI_TX_CONTROL           0x08
 186
 187 /* request to control audio streaming */
 188 #define GB_APB_REQUEST_AUDIO_CONTROL            0x09
 189
 190 /* TimeSync requests */
 191 #define GB_APB_REQUEST_TIMESYNC_ENABLE          0x0d
 192 #define GB_APB_REQUEST_TIMESYNC_DISABLE         0x0e
 193 #define GB_APB_REQUEST_TIMESYNC_AUTHORITATIVE   0x0f
 194 #define GB_APB_REQUEST_TIMESYNC_GET_LAST_EVENT  0x10
 195
 196 /* requests to set Greybus CPort flags */
 197 #define GB_APB_REQUEST_CPORT_FLAGS              0x11
 198
 199 /* ARPC request */
 200 #define GB_APB_REQUEST_ARPC_RUN                 0x12
 201
 202 struct gb_apb_request_cport_flags {
 203         __le32  flags;
 204 #define GB_APB_CPORT_FLAG_CONTROL               0x01
 205 #define GB_APB_CPORT_FLAG_HIGH_PRIO             0x02
 206 } __packed;
 207
 208
 209 /* Firmware Download Protocol */
 210
 211 /* Request Types */
 212 #define GB_FW_DOWNLOAD_TYPE_FIND_FIRMWARE       0x01
 213 #define GB_FW_DOWNLOAD_TYPE_FETCH_FIRMWARE      0x02
 214 #define GB_FW_DOWNLOAD_TYPE_RELEASE_FIRMWARE    0x03
 215
 216 #define GB_FIRMWARE_TAG_MAX_SIZE                10
 217
 218 /* firmware download find firmware request/response */
 219 struct gb_fw_download_find_firmware_request {
 220         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
 221 } __packed;
 222
 223 struct gb_fw_download_find_firmware_response {
 224         __u8                    firmware_id;
 225         __le32                  size;
 226 } __packed;
 227
 228 /* firmware download fetch firmware request/response */
 229 struct gb_fw_download_fetch_firmware_request {
 230         __u8                    firmware_id;
 231         __le32                  offset;
 232         __le32                  size;
 233 } __packed;
 234
 235 /* gb_fw_download_fetch_firmware_response contains no other data */
 236
 237 /* firmware download release firmware request */
 238 struct gb_fw_download_release_firmware_request {
 239         __u8                    firmware_id;
 240 } __packed;
 241 /* firmware download release firmware response has no payload */
 242
 243
 244 /* Firmware Management Protocol */
 245
 246 /* Request Types */
 247 #define GB_FW_MGMT_TYPE_INTERFACE_FW_VERSION    0x01
 248 #define GB_FW_MGMT_TYPE_LOAD_AND_VALIDATE_FW    0x02
 249 #define GB_FW_MGMT_TYPE_LOADED_FW               0x03
 250 #define GB_FW_MGMT_TYPE_BACKEND_FW_VERSION      0x04
 251 #define GB_FW_MGMT_TYPE_BACKEND_FW_UPDATE       0x05
 252 #define GB_FW_MGMT_TYPE_BACKEND_FW_UPDATED      0x06
 253
 254 #define GB_FW_LOAD_METHOD_UNIPRO                0x01
 255 #define GB_FW_LOAD_METHOD_INTERNAL              0x02
 256
 257 #define GB_FW_LOAD_STATUS_FAILED                0x00
 258 #define GB_FW_LOAD_STATUS_UNVALIDATED           0x01
 259 #define GB_FW_LOAD_STATUS_VALIDATED             0x02
 260 #define GB_FW_LOAD_STATUS_VALIDATION_FAILED     0x03
 261
 262 #define GB_FW_BACKEND_FW_STATUS_SUCCESS         0x01
 263 #define GB_FW_BACKEND_FW_STATUS_FAIL_FIND       0x02
 264 #define GB_FW_BACKEND_FW_STATUS_FAIL_FETCH      0x03
 265 #define GB_FW_BACKEND_FW_STATUS_FAIL_WRITE      0x04
 266 #define GB_FW_BACKEND_FW_STATUS_INT             0x05
 267 #define GB_FW_BACKEND_FW_STATUS_RETRY           0x06
 268 #define GB_FW_BACKEND_FW_STATUS_NOT_SUPPORTED   0x07
 269
 270 #define GB_FW_BACKEND_VERSION_STATUS_SUCCESS            0x01
 271 #define GB_FW_BACKEND_VERSION_STATUS_NOT_AVAILABLE      0x02
 272 #define GB_FW_BACKEND_VERSION_STATUS_NOT_SUPPORTED      0x03
 273 #define GB_FW_BACKEND_VERSION_STATUS_RETRY              0x04
 274 #define GB_FW_BACKEND_VERSION_STATUS_FAIL_INT           0x05
 275
 276 /* firmware management interface firmware version request has no payload */
 277 struct gb_fw_mgmt_interface_fw_version_response {
 278         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
 279         __le16                  major;
 280         __le16                  minor;
 281 } __packed;
 282
 283 /* firmware management load and validate firmware request/response */
 284 struct gb_fw_mgmt_load_and_validate_fw_request {
 285         __u8                    request_id;
 286         __u8                    load_method;
 287         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
 288 } __packed;
 289 /* firmware management load and validate firmware response has no payload*/
 290
 291 /* firmware management loaded firmware request */
 292 struct gb_fw_mgmt_loaded_fw_request {
 293         __u8                    request_id;
 294         __u8                    status;
 295         __le16                  major;
 296         __le16                  minor;
 297 } __packed;
 298 /* firmware management loaded firmware response has no payload */
 299
 300 /* firmware management backend firmware version request/response */
 301 struct gb_fw_mgmt_backend_fw_version_request {
 302         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
 303 } __packed;
 304
 305 struct gb_fw_mgmt_backend_fw_version_response {
 306         __le16                  major;
 307         __le16                  minor;
 308         __u8                    status;
 309 } __packed;
 310
 311 /* firmware management backend firmware update request */
 312 struct gb_fw_mgmt_backend_fw_update_request {
 313         __u8                    request_id;
 314         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
 315 } __packed;
 316 /* firmware management backend firmware update response has no payload */
 317
 318 /* firmware management backend firmware updated request */
 319 struct gb_fw_mgmt_backend_fw_updated_request {
 320         __u8                    request_id;
 321         __u8                    status;
 322 } __packed;
 323 /* firmware management backend firmware updated response has no payload */
 324
 325
 326 /* Component Authentication Protocol (CAP) */
 327
 328 /* Request Types */
 329 #define GB_CAP_TYPE_GET_ENDPOINT_UID    0x01
 330 #define GB_CAP_TYPE_GET_IMS_CERTIFICATE 0x02
 331 #define GB_CAP_TYPE_AUTHENTICATE        0x03
 332
 333 /* CAP get endpoint uid request has no payload */
 334 struct gb_cap_get_endpoint_uid_response {
 335         __u8                    uid[8];
 336 } __packed;
 337
 338 /* CAP get endpoint ims certificate request/response */
 339 struct gb_cap_get_ims_certificate_request {
 340         __le32                  certificate_class;
 341         __le32                  certificate_id;
 342 } __packed;
 343
 344 struct gb_cap_get_ims_certificate_response {
 345         __u8                    result_code;
 346         __u8                    certificate[];
 347 } __packed;
 348
 349 /* CAP authenticate request/response */
 350 struct gb_cap_authenticate_request {
 351         __le32                  auth_type;
 352         __u8                    uid[8];
 353         __u8                    challenge[32];
 354 } __packed;
 355
 356 struct gb_cap_authenticate_response {
 357         __u8                    result_code;
 358         __u8                    response[64];
 359         __u8                    signature[];
 360 } __packed;
 361
 362
 363 /* Bootrom Protocol */
 364
 365 /* Version of the Greybus bootrom protocol we support */
 366 #define GB_BOOTROM_VERSION_MAJOR                0x00
 367 #define GB_BOOTROM_VERSION_MINOR                0x01
 368
 369 /* Greybus bootrom request types */
 370 #define GB_BOOTROM_TYPE_VERSION                 0x01
 371 #define GB_BOOTROM_TYPE_FIRMWARE_SIZE           0x02
 372 #define GB_BOOTROM_TYPE_GET_FIRMWARE            0x03
 373 #define GB_BOOTROM_TYPE_READY_TO_BOOT           0x04
 374 #define GB_BOOTROM_TYPE_AP_READY                0x05    /* Request with no-payload */
 375 #define GB_BOOTROM_TYPE_GET_VID_PID             0x06    /* Request with no-payload */
 376
 377 /* Greybus bootrom boot stages */
 378 #define GB_BOOTROM_BOOT_STAGE_ONE               0x01 /* Reserved for the boot ROM */
 379 #define GB_BOOTROM_BOOT_STAGE_TWO               0x02 /* Bootrom package to be loaded by the boot ROM */
 380 #define GB_BOOTROM_BOOT_STAGE_THREE             0x03 /* Module personality package loaded by Stage 2 firmware */
 381
 382 /* Greybus bootrom ready to boot status */
 383 #define GB_BOOTROM_BOOT_STATUS_INVALID          0x00 /* Firmware blob could not be validated */
 384 #define GB_BOOTROM_BOOT_STATUS_INSECURE         0x01 /* Firmware blob is valid but insecure */
 385 #define GB_BOOTROM_BOOT_STATUS_SECURE           0x02 /* Firmware blob is valid and secure */
 386
 387 /* Max bootrom data fetch size in bytes */
 388 #define GB_BOOTROM_FETCH_MAX                    2000
 389
 390 struct gb_bootrom_version_request {
 391         __u8    major;
 392         __u8    minor;
 393 } __packed;
 394
 395 struct gb_bootrom_version_response {
 396         __u8    major;
 397         __u8    minor;
 398 } __packed;
 399
 400 /* Bootrom protocol firmware size request/response */
 401 struct gb_bootrom_firmware_size_request {
 402         __u8                    stage;
 403 } __packed;
 404
 405 struct gb_bootrom_firmware_size_response {
 406         __le32                  size;
 407 } __packed;
 408
 409 /* Bootrom protocol get firmware request/response */
 410 struct gb_bootrom_get_firmware_request {
 411         __le32                  offset;
 412         __le32                  size;
 413 } __packed;
 414
 415 /* gb_bootrom_get_firmware_response contains no other data */
 416
 417 /* Bootrom protocol Ready to boot request */
 418 struct gb_bootrom_ready_to_boot_request {
 419         __u8                    status;
 420 } __packed;
 421 /* Bootrom protocol Ready to boot response has no payload */
 422
 423 /* Bootrom protocol get VID/PID request has no payload */
 424 struct gb_bootrom_get_vid_pid_response {
 425         __le32                  vendor_id;
 426         __le32                  product_id;
 427 } __packed;
 428
 429
 430 /* Power Supply */
 431
 432 /* Greybus power supply request types */
 433 #define GB_POWER_SUPPLY_TYPE_GET_SUPPLIES               0x02
 434 #define GB_POWER_SUPPLY_TYPE_GET_DESCRIPTION            0x03
 435 #define GB_POWER_SUPPLY_TYPE_GET_PROP_DESCRIPTORS       0x04
 436 #define GB_POWER_SUPPLY_TYPE_GET_PROPERTY               0x05
 437 #define GB_POWER_SUPPLY_TYPE_SET_PROPERTY               0x06
 438 #define GB_POWER_SUPPLY_TYPE_EVENT                      0x07
 439
 440 /* Greybus power supply battery technologies types */
 441 #define GB_POWER_SUPPLY_TECH_UNKNOWN                    0x0000
 442 #define GB_POWER_SUPPLY_TECH_NiMH                       0x0001
 443 #define GB_POWER_SUPPLY_TECH_LION                       0x0002
 444 #define GB_POWER_SUPPLY_TECH_LIPO                       0x0003
 445 #define GB_POWER_SUPPLY_TECH_LiFe                       0x0004
 446 #define GB_POWER_SUPPLY_TECH_NiCd                       0x0005
 447 #define GB_POWER_SUPPLY_TECH_LiMn                       0x0006
 448
 449 /* Greybus power supply types */
 450 #define GB_POWER_SUPPLY_UNKNOWN_TYPE                    0x0000
 451 #define GB_POWER_SUPPLY_BATTERY_TYPE                    0x0001
 452 #define GB_POWER_SUPPLY_UPS_TYPE                        0x0002
 453 #define GB_POWER_SUPPLY_MAINS_TYPE                      0x0003
 454 #define GB_POWER_SUPPLY_USB_TYPE                        0x0004
 455 #define GB_POWER_SUPPLY_USB_DCP_TYPE                    0x0005
 456 #define GB_POWER_SUPPLY_USB_CDP_TYPE                    0x0006
 457 #define GB_POWER_SUPPLY_USB_ACA_TYPE                    0x0007
 458
 459 /* Greybus power supply health values */
 460 #define GB_POWER_SUPPLY_HEALTH_UNKNOWN                  0x0000
 461 #define GB_POWER_SUPPLY_HEALTH_GOOD                     0x0001
 462 #define GB_POWER_SUPPLY_HEALTH_OVERHEAT                 0x0002
 463 #define GB_POWER_SUPPLY_HEALTH_DEAD                     0x0003
 464 #define GB_POWER_SUPPLY_HEALTH_OVERVOLTAGE              0x0004
 465 #define GB_POWER_SUPPLY_HEALTH_UNSPEC_FAILURE           0x0005
 466 #define GB_POWER_SUPPLY_HEALTH_COLD                     0x0006
 467 #define GB_POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE    0x0007
 468 #define GB_POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE      0x0008
 469
 470 /* Greybus power supply status values */
 471 #define GB_POWER_SUPPLY_STATUS_UNKNOWN                  0x0000
 472 #define GB_POWER_SUPPLY_STATUS_CHARGING                 0x0001
 473 #define GB_POWER_SUPPLY_STATUS_DISCHARGING              0x0002
 474 #define GB_POWER_SUPPLY_STATUS_NOT_CHARGING             0x0003
 475 #define GB_POWER_SUPPLY_STATUS_FULL                     0x0004
 476
 477 /* Greybus power supply capacity level values */
 478 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN          0x0000
 479 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL         0x0001
 480 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_LOW              0x0002
 481 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_NORMAL           0x0003
 482 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_HIGH             0x0004
 483 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_FULL             0x0005
 484
 485 /* Greybus power supply scope values */
 486 #define GB_POWER_SUPPLY_SCOPE_UNKNOWN                   0x0000
 487 #define GB_POWER_SUPPLY_SCOPE_SYSTEM                    0x0001
 488 #define GB_POWER_SUPPLY_SCOPE_DEVICE                    0x0002
 489
 490 struct gb_power_supply_get_supplies_response {
 491         __u8    supplies_count;
 492 } __packed;
 493
 494 struct gb_power_supply_get_description_request {
 495         __u8    psy_id;
 496 } __packed;
 497
 498 struct gb_power_supply_get_description_response {
 499         __u8    manufacturer[32];
 500         __u8    model[32];
 501         __u8    serial_number[32];
 502         __le16  type;
 503         __u8    properties_count;
 504 } __packed;
 505
 506 struct gb_power_supply_props_desc {
 507         __u8    property;
 508 #define GB_POWER_SUPPLY_PROP_STATUS                             0x00
 509 #define GB_POWER_SUPPLY_PROP_CHARGE_TYPE                        0x01
 510 #define GB_POWER_SUPPLY_PROP_HEALTH                             0x02
 511 #define GB_POWER_SUPPLY_PROP_PRESENT                            0x03
 512 #define GB_POWER_SUPPLY_PROP_ONLINE                             0x04
 513 #define GB_POWER_SUPPLY_PROP_AUTHENTIC                          0x05
 514 #define GB_POWER_SUPPLY_PROP_TECHNOLOGY                         0x06
 515 #define GB_POWER_SUPPLY_PROP_CYCLE_COUNT                        0x07
 516 #define GB_POWER_SUPPLY_PROP_VOLTAGE_MAX                        0x08
 517 #define GB_POWER_SUPPLY_PROP_VOLTAGE_MIN                        0x09
 518 #define GB_POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN                 0x0A
 519 #define GB_POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN                 0x0B
 520 #define GB_POWER_SUPPLY_PROP_VOLTAGE_NOW                        0x0C
 521 #define GB_POWER_SUPPLY_PROP_VOLTAGE_AVG                        0x0D
 522 #define GB_POWER_SUPPLY_PROP_VOLTAGE_OCV                        0x0E
 523 #define GB_POWER_SUPPLY_PROP_VOLTAGE_BOOT                       0x0F
 524 #define GB_POWER_SUPPLY_PROP_CURRENT_MAX                        0x10
 525 #define GB_POWER_SUPPLY_PROP_CURRENT_NOW                        0x11
 526 #define GB_POWER_SUPPLY_PROP_CURRENT_AVG                        0x12
 527 #define GB_POWER_SUPPLY_PROP_CURRENT_BOOT                       0x13
 528 #define GB_POWER_SUPPLY_PROP_POWER_NOW                          0x14
 529 #define GB_POWER_SUPPLY_PROP_POWER_AVG                          0x15
 530 #define GB_POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN                 0x16
 531 #define GB_POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN                0x17
 532 #define GB_POWER_SUPPLY_PROP_CHARGE_FULL                        0x18
 533 #define GB_POWER_SUPPLY_PROP_CHARGE_EMPTY                       0x19
 534 #define GB_POWER_SUPPLY_PROP_CHARGE_NOW                         0x1A
 535 #define GB_POWER_SUPPLY_PROP_CHARGE_AVG                         0x1B
 536 #define GB_POWER_SUPPLY_PROP_CHARGE_COUNTER                     0x1C
 537 #define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT            0x1D
 538 #define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX        0x1E
 539 #define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE            0x1F
 540 #define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX        0x20
 541 #define GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT               0x21
 542 #define GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX           0x22
 543 #define GB_POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT                0x23
 544 #define GB_POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN                 0x24
 545 #define GB_POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN                0x25
 546 #define GB_POWER_SUPPLY_PROP_ENERGY_FULL                        0x26
 547 #define GB_POWER_SUPPLY_PROP_ENERGY_EMPTY                       0x27
 548 #define GB_POWER_SUPPLY_PROP_ENERGY_NOW                         0x28
 549 #define GB_POWER_SUPPLY_PROP_ENERGY_AVG                         0x29
 550 #define GB_POWER_SUPPLY_PROP_CAPACITY                           0x2A
 551 #define GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN                 0x2B
 552 #define GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX                 0x2C
 553 #define GB_POWER_SUPPLY_PROP_CAPACITY_LEVEL                     0x2D
 554 #define GB_POWER_SUPPLY_PROP_TEMP                               0x2E
 555 #define GB_POWER_SUPPLY_PROP_TEMP_MAX                           0x2F
 556 #define GB_POWER_SUPPLY_PROP_TEMP_MIN                           0x30
 557 #define GB_POWER_SUPPLY_PROP_TEMP_ALERT_MIN                     0x31
 558 #define GB_POWER_SUPPLY_PROP_TEMP_ALERT_MAX                     0x32
 559 #define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT                       0x33
 560 #define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN             0x34
 561 #define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX             0x35
 562 #define GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW                  0x36
 563 #define GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG                  0x37
 564 #define GB_POWER_SUPPLY_PROP_TIME_TO_FULL_NOW                   0x38
 565 #define GB_POWER_SUPPLY_PROP_TIME_TO_FULL_AVG                   0x39
 566 #define GB_POWER_SUPPLY_PROP_TYPE                               0x3A
 567 #define GB_POWER_SUPPLY_PROP_SCOPE                              0x3B
 568 #define GB_POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT                0x3C
 569 #define GB_POWER_SUPPLY_PROP_CALIBRATE                          0x3D
 570         __u8    is_writeable;
 571 } __packed;
 572
 573 struct gb_power_supply_get_property_descriptors_request {
 574         __u8    psy_id;
 575 } __packed;
 576
 577 struct gb_power_supply_get_property_descriptors_response {
 578         __u8    properties_count;
 579         struct gb_power_supply_props_desc props[];
 580 } __packed;
 581
 582 struct gb_power_supply_get_property_request {
 583         __u8    psy_id;
 584         __u8    property;
 585 } __packed;
 586
 587 struct gb_power_supply_get_property_response {
 588         __le32  prop_val;
 589 };
 590
 591 struct gb_power_supply_set_property_request {
 592         __u8    psy_id;
 593         __u8    property;
 594         __le32  prop_val;
 595 } __packed;
 596
 597 struct gb_power_supply_event_request {
 598         __u8    psy_id;
 599         __u8    event;
 600 #define GB_POWER_SUPPLY_UPDATE          0x01
 601 } __packed;
 602
 603
 604 /* HID */
 605
 606 /* Greybus HID operation types */
 607 #define GB_HID_TYPE_GET_DESC            0x02
 608 #define GB_HID_TYPE_GET_REPORT_DESC     0x03
 609 #define GB_HID_TYPE_PWR_ON              0x04
 610 #define GB_HID_TYPE_PWR_OFF             0x05
 611 #define GB_HID_TYPE_GET_REPORT          0x06
 612 #define GB_HID_TYPE_SET_REPORT          0x07
 613 #define GB_HID_TYPE_IRQ_EVENT           0x08
 614
 615 /* Report type */
 616 #define GB_HID_INPUT_REPORT             0
 617 #define GB_HID_OUTPUT_REPORT            1
 618 #define GB_HID_FEATURE_REPORT           2
 619
 620 /* Different request/response structures */
 621 /* HID get descriptor response */
 622 struct gb_hid_desc_response {
 623         __u8                            bLength;
 624         __le16                          wReportDescLength;
 625         __le16                          bcdHID;
 626         __le16                          wProductID;
 627         __le16                          wVendorID;
 628         __u8                            bCountryCode;
 629 } __packed;
 630
 631 /* HID get report request/response */
 632 struct gb_hid_get_report_request {
 633         __u8                            report_type;
 634         __u8                            report_id;
 635 } __packed;
 636
 637 /* HID set report request */
 638 struct gb_hid_set_report_request {
 639         __u8                            report_type;
 640         __u8                            report_id;
 641         __u8                            report[];
 642 } __packed;
 643
 644 /* HID input report request, via interrupt pipe */
 645 struct gb_hid_input_report_request {
 646         __u8                            report[0];
 647 } __packed;
 648
 649
 650 /* I2C */
 651
 652 /* Greybus i2c request types */
 653 #define GB_I2C_TYPE_FUNCTIONALITY       0x02
 654 #define GB_I2C_TYPE_TRANSFER            0x05
 655
 656 /* functionality request has no payload */
 657 struct gb_i2c_functionality_response {
 658         __le32  functionality;
 659 } __packed;
 660
 661 /*
 662  * Outgoing data immediately follows the op count and ops array.
 663  * The data for each write (master -> slave) op in the array is sent
 664  * in order, with no (e.g. pad) bytes separating them.
 665  *
 666  * Short reads cause the entire transfer request to fail So response
 667  * payload consists only of bytes read, and the number of bytes is
 668  * exactly what was specified in the corresponding op.  Like
 669  * outgoing data, the incoming data is in order and contiguous.
 670  */
 671 struct gb_i2c_transfer_op {
 672         __le16  addr;
 673         __le16  flags;
 674         __le16  size;
 675 } __packed;
 676
 677 struct gb_i2c_transfer_request {
 678         __le16                          op_count;
 679         struct gb_i2c_transfer_op       ops[];          /* op_count of these */
 680 } __packed;
 681 struct gb_i2c_transfer_response {
 682         __u8                            data[0];        /* inbound data */
 683 } __packed;
 684
 685
 686 /* GPIO */
 687
 688 /* Greybus GPIO request types */
 689 #define GB_GPIO_TYPE_LINE_COUNT         0x02
 690 #define GB_GPIO_TYPE_ACTIVATE           0x03
 691 #define GB_GPIO_TYPE_DEACTIVATE         0x04
 692 #define GB_GPIO_TYPE_GET_DIRECTION      0x05
 693 #define GB_GPIO_TYPE_DIRECTION_IN       0x06
 694 #define GB_GPIO_TYPE_DIRECTION_OUT      0x07
 695 #define GB_GPIO_TYPE_GET_VALUE          0x08
 696 #define GB_GPIO_TYPE_SET_VALUE          0x09
 697 #define GB_GPIO_TYPE_SET_DEBOUNCE       0x0a
 698 #define GB_GPIO_TYPE_IRQ_TYPE           0x0b
 699 #define GB_GPIO_TYPE_IRQ_MASK           0x0c
 700 #define GB_GPIO_TYPE_IRQ_UNMASK         0x0d
 701 #define GB_GPIO_TYPE_IRQ_EVENT          0x0e
 702
 703 #define GB_GPIO_IRQ_TYPE_NONE           0x00
 704 #define GB_GPIO_IRQ_TYPE_EDGE_RISING    0x01
 705 #define GB_GPIO_IRQ_TYPE_EDGE_FALLING   0x02
 706 #define GB_GPIO_IRQ_TYPE_EDGE_BOTH      0x03
 707 #define GB_GPIO_IRQ_TYPE_LEVEL_HIGH     0x04
 708 #define GB_GPIO_IRQ_TYPE_LEVEL_LOW      0x08
 709
 710 /* line count request has no payload */
 711 struct gb_gpio_line_count_response {
 712         __u8    count;
 713 } __packed;
 714
 715 struct gb_gpio_activate_request {
 716         __u8    which;
 717 } __packed;
 718 /* activate response has no payload */
 719
 720 struct gb_gpio_deactivate_request {
 721         __u8    which;
 722 } __packed;
 723 /* deactivate response has no payload */
 724
 725 struct gb_gpio_get_direction_request {
 726         __u8    which;
 727 } __packed;
 728 struct gb_gpio_get_direction_response {
 729         __u8    direction;
 730 } __packed;
 731
 732 struct gb_gpio_direction_in_request {
 733         __u8    which;
 734 } __packed;
 735 /* direction in response has no payload */
 736
 737 struct gb_gpio_direction_out_request {
 738         __u8    which;
 739         __u8    value;
 740 } __packed;
 741 /* direction out response has no payload */
 742
 743 struct gb_gpio_get_value_request {
 744         __u8    which;
 745 } __packed;
 746 struct gb_gpio_get_value_response {
 747         __u8    value;
 748 } __packed;
 749
 750 struct gb_gpio_set_value_request {
 751         __u8    which;
 752         __u8    value;
 753 } __packed;
 754 /* set value response has no payload */
 755
 756 struct gb_gpio_set_debounce_request {
 757         __u8    which;
 758         __le16  usec;
 759 } __packed;
 760 /* debounce response has no payload */
 761
 762 struct gb_gpio_irq_type_request {
 763         __u8    which;
 764         __u8    type;
 765 } __packed;
 766 /* irq type response has no payload */
 767
 768 struct gb_gpio_irq_mask_request {
 769         __u8    which;
 770 } __packed;
 771 /* irq mask response has no payload */
 772
 773 struct gb_gpio_irq_unmask_request {
 774         __u8    which;
 775 } __packed;
 776 /* irq unmask response has no payload */
 777
 778 /* irq event requests originate on another module and are handled on the AP */
 779 struct gb_gpio_irq_event_request {
 780         __u8    which;
 781 } __packed;
 782 /* irq event has no response */
 783
 784
 785 /* PWM */
 786
 787 /* Greybus PWM operation types */
 788 #define GB_PWM_TYPE_PWM_COUNT           0x02
 789 #define GB_PWM_TYPE_ACTIVATE            0x03
 790 #define GB_PWM_TYPE_DEACTIVATE          0x04
 791 #define GB_PWM_TYPE_CONFIG              0x05
 792 #define GB_PWM_TYPE_POLARITY            0x06
 793 #define GB_PWM_TYPE_ENABLE              0x07
 794 #define GB_PWM_TYPE_DISABLE             0x08
 795
 796 /* pwm count request has no payload */
 797 struct gb_pwm_count_response {
 798         __u8    count;
 799 } __packed;
 800
 801 struct gb_pwm_activate_request {
 802         __u8    which;
 803 } __packed;
 804
 805 struct gb_pwm_deactivate_request {
 806         __u8    which;
 807 } __packed;
 808
 809 struct gb_pwm_config_request {
 810         __u8    which;
 811         __le32  duty;
 812         __le32  period;
 813 } __packed;
 814
 815 struct gb_pwm_polarity_request {
 816         __u8    which;
 817         __u8    polarity;
 818 } __packed;
 819
 820 struct gb_pwm_enable_request {
 821         __u8    which;
 822 } __packed;
 823
 824 struct gb_pwm_disable_request {
 825         __u8    which;
 826 } __packed;
 827
 828 /* SPI */
 829
 830 /* Should match up with modes in linux/spi/spi.h */
 831 #define GB_SPI_MODE_CPHA                0x01            /* clock phase */
 832 #define GB_SPI_MODE_CPOL                0x02            /* clock polarity */
 833 #define GB_SPI_MODE_MODE_0              (0 | 0)         /* (original MicroWire) */
 834 #define GB_SPI_MODE_MODE_1              (0 | GB_SPI_MODE_CPHA)
 835 #define GB_SPI_MODE_MODE_2              (GB_SPI_MODE_CPOL | 0)
 836 #define GB_SPI_MODE_MODE_3              (GB_SPI_MODE_CPOL | GB_SPI_MODE_CPHA)
 837 #define GB_SPI_MODE_CS_HIGH             0x04            /* chipselect active high? */
 838 #define GB_SPI_MODE_LSB_FIRST           0x08            /* per-word bits-on-wire */
 839 #define GB_SPI_MODE_3WIRE               0x10            /* SI/SO signals shared */
 840 #define GB_SPI_MODE_LOOP                0x20            /* loopback mode */
 841 #define GB_SPI_MODE_NO_CS               0x40            /* 1 dev/bus, no chipselect */
 842 #define GB_SPI_MODE_READY               0x80            /* slave pulls low to pause */
 843
 844 /* Should match up with flags in linux/spi/spi.h */
 845 #define GB_SPI_FLAG_HALF_DUPLEX         BIT(0)          /* can't do full duplex */
 846 #define GB_SPI_FLAG_NO_RX               BIT(1)          /* can't do buffer read */
 847 #define GB_SPI_FLAG_NO_TX               BIT(2)          /* can't do buffer write */
 848
 849 /* Greybus spi operation types */
 850 #define GB_SPI_TYPE_MASTER_CONFIG       0x02
 851 #define GB_SPI_TYPE_DEVICE_CONFIG       0x03
 852 #define GB_SPI_TYPE_TRANSFER            0x04
 853
 854 /* mode request has no payload */
 855 struct gb_spi_master_config_response {
 856         __le32  bits_per_word_mask;
 857         __le32  min_speed_hz;
 858         __le32  max_speed_hz;
 859         __le16  mode;
 860         __le16  flags;
 861         __u8    num_chipselect;
 862 } __packed;
 863
 864 struct gb_spi_device_config_request {
 865         __u8    chip_select;
 866 } __packed;
 867
 868 struct gb_spi_device_config_response {
 869         __le16  mode;
 870         __u8    bits_per_word;
 871         __le32  max_speed_hz;
 872         __u8    device_type;
 873 #define GB_SPI_SPI_DEV          0x00
 874 #define GB_SPI_SPI_NOR          0x01
 875 #define GB_SPI_SPI_MODALIAS     0x02
 876         __u8    name[32];
 877 } __packed;
 878
 879 /**
 880  * struct gb_spi_transfer - a read/write buffer pair
 881  * @speed_hz: Select a speed other than the device default for this transfer. If
 882  *      0 the default (from @spi_device) is used.
 883  * @len: size of rx and tx buffers (in bytes)
 884  * @delay_usecs: microseconds to delay after this transfer before (optionally)
 885  *      changing the chipselect status, then starting the next transfer or
 886  *      completing this spi_message.
 887  * @cs_change: affects chipselect after this transfer completes
 888  * @bits_per_word: select a bits_per_word other than the device default for this
 889  *      transfer. If 0 the default (from @spi_device) is used.
 890  */
 891 struct gb_spi_transfer {
 892         __le32          speed_hz;
 893         __le32          len;
 894         __le16          delay_usecs;
 895         __u8            cs_change;
 896         __u8            bits_per_word;
 897         __u8            xfer_flags;
 898 #define GB_SPI_XFER_READ        0x01
 899 #define GB_SPI_XFER_WRITE       0x02
 900 #define GB_SPI_XFER_INPROGRESS  0x04
 901 } __packed;
 902
 903 struct gb_spi_transfer_request {
 904         __u8                    chip_select;    /* of the spi device */
 905         __u8                    mode;           /* of the spi device */
 906         __le16                  count;
 907         struct gb_spi_transfer  transfers[];    /* count of these */
 908 } __packed;
 909
 910 struct gb_spi_transfer_response {
 911         __u8                    data[0];        /* inbound data */
 912 } __packed;
 913
 914 /* Version of the Greybus SVC protocol we support */
 915 #define GB_SVC_VERSION_MAJOR            0x00
 916 #define GB_SVC_VERSION_MINOR            0x01
 917
 918 /* Greybus SVC request types */
 919 #define GB_SVC_TYPE_PROTOCOL_VERSION            0x01
 920 #define GB_SVC_TYPE_SVC_HELLO                   0x02
 921 #define GB_SVC_TYPE_INTF_DEVICE_ID              0x03
 922 #define GB_SVC_TYPE_INTF_RESET                  0x06
 923 #define GB_SVC_TYPE_CONN_CREATE                 0x07
 924 #define GB_SVC_TYPE_CONN_DESTROY                0x08
 925 #define GB_SVC_TYPE_DME_PEER_GET                0x09
 926 #define GB_SVC_TYPE_DME_PEER_SET                0x0a
 927 #define GB_SVC_TYPE_ROUTE_CREATE                0x0b
 928 #define GB_SVC_TYPE_ROUTE_DESTROY               0x0c
 929 #define GB_SVC_TYPE_TIMESYNC_ENABLE             0x0d
 930 #define GB_SVC_TYPE_TIMESYNC_DISABLE            0x0e
 931 #define GB_SVC_TYPE_TIMESYNC_AUTHORITATIVE      0x0f
 932 #define GB_SVC_TYPE_INTF_SET_PWRM               0x10
 933 #define GB_SVC_TYPE_INTF_EJECT                  0x11
 934 #define GB_SVC_TYPE_PING                        0x13
 935 #define GB_SVC_TYPE_PWRMON_RAIL_COUNT_GET       0x14
 936 #define GB_SVC_TYPE_PWRMON_RAIL_NAMES_GET       0x15
 937 #define GB_SVC_TYPE_PWRMON_SAMPLE_GET           0x16
 938 #define GB_SVC_TYPE_PWRMON_INTF_SAMPLE_GET      0x17
 939 #define GB_SVC_TYPE_TIMESYNC_WAKE_PINS_ACQUIRE  0x18
 940 #define GB_SVC_TYPE_TIMESYNC_WAKE_PINS_RELEASE  0x19
 941 #define GB_SVC_TYPE_TIMESYNC_PING               0x1a
 942 #define GB_SVC_TYPE_MODULE_INSERTED             0x1f
 943 #define GB_SVC_TYPE_MODULE_REMOVED              0x20
 944 #define GB_SVC_TYPE_INTF_VSYS_ENABLE            0x21
 945 #define GB_SVC_TYPE_INTF_VSYS_DISABLE           0x22
 946 #define GB_SVC_TYPE_INTF_REFCLK_ENABLE          0x23
 947 #define GB_SVC_TYPE_INTF_REFCLK_DISABLE         0x24
 948 #define GB_SVC_TYPE_INTF_UNIPRO_ENABLE          0x25
 949 #define GB_SVC_TYPE_INTF_UNIPRO_DISABLE         0x26
 950 #define GB_SVC_TYPE_INTF_ACTIVATE               0x27
 951 #define GB_SVC_TYPE_INTF_RESUME                 0x28
 952 #define GB_SVC_TYPE_INTF_MAILBOX_EVENT          0x29
 953 #define GB_SVC_TYPE_INTF_OOPS                   0x2a
 954
 955 /* Greybus SVC protocol status values */
 956 #define GB_SVC_OP_SUCCESS                       0x00
 957 #define GB_SVC_OP_UNKNOWN_ERROR                 0x01
 958 #define GB_SVC_INTF_NOT_DETECTED                0x02
 959 #define GB_SVC_INTF_NO_UPRO_LINK                0x03
 960 #define GB_SVC_INTF_UPRO_NOT_DOWN               0x04
 961 #define GB_SVC_INTF_UPRO_NOT_HIBERNATED         0x05
 962 #define GB_SVC_INTF_NO_V_SYS                    0x06
 963 #define GB_SVC_INTF_V_CHG                       0x07
 964 #define GB_SVC_INTF_WAKE_BUSY                   0x08
 965 #define GB_SVC_INTF_NO_REFCLK                   0x09
 966 #define GB_SVC_INTF_RELEASING                   0x0a
 967 #define GB_SVC_INTF_NO_ORDER                    0x0b
 968 #define GB_SVC_INTF_MBOX_SET                    0x0c
 969 #define GB_SVC_INTF_BAD_MBOX                    0x0d
 970 #define GB_SVC_INTF_OP_TIMEOUT                  0x0e
 971 #define GB_SVC_PWRMON_OP_NOT_PRESENT            0x0f
 972
 973 struct gb_svc_version_request {
 974         __u8    major;
 975         __u8    minor;
 976 } __packed;
 977
 978 struct gb_svc_version_response {
 979         __u8    major;
 980         __u8    minor;
 981 } __packed;
 982
 983 /* SVC protocol hello request */
 984 struct gb_svc_hello_request {
 985         __le16                  endo_id;
 986         __u8                    interface_id;
 987 } __packed;
 988 /* hello response has no payload */
 989
 990 struct gb_svc_intf_device_id_request {
 991         __u8    intf_id;
 992         __u8    device_id;
 993 } __packed;
 994 /* device id response has no payload */
 995
 996 struct gb_svc_intf_reset_request {
 997         __u8    intf_id;
 998 } __packed;
 999 /* interface reset response has no payload */
1000
1001 struct gb_svc_intf_eject_request {
1002         __u8    intf_id;
1003 } __packed;
1004 /* interface eject response has no payload */
1005
1006 struct gb_svc_conn_create_request {
1007         __u8    intf1_id;
1008         __le16  cport1_id;
1009         __u8    intf2_id;
1010         __le16  cport2_id;
1011         __u8    tc;
1012         __u8    flags;
1013 } __packed;
1014 /* connection create response has no payload */
1015
1016 struct gb_svc_conn_destroy_request {
1017         __u8    intf1_id;
1018         __le16  cport1_id;
1019         __u8    intf2_id;
1020         __le16  cport2_id;
1021 } __packed;
1022 /* connection destroy response has no payload */
1023
1024 struct gb_svc_dme_peer_get_request {
1025         __u8    intf_id;
1026         __le16  attr;
1027         __le16  selector;
1028 } __packed;
1029
1030 struct gb_svc_dme_peer_get_response {
1031         __le16  result_code;
1032         __le32  attr_value;
1033 } __packed;
1034
1035 struct gb_svc_dme_peer_set_request {
1036         __u8    intf_id;
1037         __le16  attr;
1038         __le16  selector;
1039         __le32  value;
1040 } __packed;
1041
1042 struct gb_svc_dme_peer_set_response {
1043         __le16  result_code;
1044 } __packed;
1045
1046 /* Greybus init-status values, currently retrieved using DME peer gets. */
1047 #define GB_INIT_SPI_BOOT_STARTED                        0x02
1048 #define GB_INIT_TRUSTED_SPI_BOOT_FINISHED               0x03
1049 #define GB_INIT_UNTRUSTED_SPI_BOOT_FINISHED             0x04
1050 #define GB_INIT_BOOTROM_UNIPRO_BOOT_STARTED             0x06
1051 #define GB_INIT_BOOTROM_FALLBACK_UNIPRO_BOOT_STARTED    0x09
1052 #define GB_INIT_S2_LOADER_BOOT_STARTED                  0x0D
1053
1054 struct gb_svc_route_create_request {
1055         __u8    intf1_id;
1056         __u8    dev1_id;
1057         __u8    intf2_id;
1058         __u8    dev2_id;
1059 } __packed;
1060 /* route create response has no payload */
1061
1062 struct gb_svc_route_destroy_request {
1063         __u8    intf1_id;
1064         __u8    intf2_id;
1065 } __packed;
1066 /* route destroy response has no payload */
1067
1068 /* used for svc_intf_vsys_{enable,disable} */
1069 struct gb_svc_intf_vsys_request {
1070         __u8    intf_id;
1071 } __packed;
1072
1073 struct gb_svc_intf_vsys_response {
1074         __u8    result_code;
1075 #define GB_SVC_INTF_VSYS_OK                             0x00
1076         /* 0x01 is reserved */
1077 #define GB_SVC_INTF_VSYS_FAIL                           0x02
1078 } __packed;
1079
1080 /* used for svc_intf_refclk_{enable,disable} */
1081 struct gb_svc_intf_refclk_request {
1082         __u8    intf_id;
1083 } __packed;
1084
1085 struct gb_svc_intf_refclk_response {
1086         __u8    result_code;
1087 #define GB_SVC_INTF_REFCLK_OK                           0x00
1088         /* 0x01 is reserved */
1089 #define GB_SVC_INTF_REFCLK_FAIL                         0x02
1090 } __packed;
1091
1092 /* used for svc_intf_unipro_{enable,disable} */
1093 struct gb_svc_intf_unipro_request {
1094         __u8    intf_id;
1095 } __packed;
1096
1097 struct gb_svc_intf_unipro_response {
1098         __u8    result_code;
1099 #define GB_SVC_INTF_UNIPRO_OK                           0x00
1100         /* 0x01 is reserved */
1101 #define GB_SVC_INTF_UNIPRO_FAIL                         0x02
1102 #define GB_SVC_INTF_UNIPRO_NOT_OFF                      0x03
1103 } __packed;
1104
1105 #define GB_SVC_UNIPRO_FAST_MODE                 0x01
1106 #define GB_SVC_UNIPRO_SLOW_MODE                 0x02
1107 #define GB_SVC_UNIPRO_FAST_AUTO_MODE            0x04
1108 #define GB_SVC_UNIPRO_SLOW_AUTO_MODE            0x05
1109 #define GB_SVC_UNIPRO_MODE_UNCHANGED            0x07
1110 #define GB_SVC_UNIPRO_HIBERNATE_MODE            0x11
1111 #define GB_SVC_UNIPRO_OFF_MODE                  0x12
1112
1113 #define GB_SVC_SMALL_AMPLITUDE          0x01
1114 #define GB_SVC_LARGE_AMPLITUDE          0x02
1115
1116 #define GB_SVC_NO_DE_EMPHASIS           0x00
1117 #define GB_SVC_SMALL_DE_EMPHASIS        0x01
1118 #define GB_SVC_LARGE_DE_EMPHASIS        0x02
1119
1120 #define GB_SVC_PWRM_RXTERMINATION               0x01
1121 #define GB_SVC_PWRM_TXTERMINATION               0x02
1122 #define GB_SVC_PWRM_LINE_RESET                  0x04
1123 #define GB_SVC_PWRM_SCRAMBLING                  0x20
1124
1125 #define GB_SVC_PWRM_QUIRK_HSSER                 0x00000001
1126
1127 #define GB_SVC_UNIPRO_HS_SERIES_A               0x01
1128 #define GB_SVC_UNIPRO_HS_SERIES_B               0x02
1129
1130 #define GB_SVC_SETPWRM_PWR_OK           0x00
1131 #define GB_SVC_SETPWRM_PWR_LOCAL        0x01
1132 #define GB_SVC_SETPWRM_PWR_REMOTE       0x02
1133 #define GB_SVC_SETPWRM_PWR_BUSY         0x03
1134 #define GB_SVC_SETPWRM_PWR_ERROR_CAP    0x04
1135 #define GB_SVC_SETPWRM_PWR_FATAL_ERROR  0x05
1136
1137 struct gb_svc_l2_timer_cfg {
1138         __le16 tsb_fc0_protection_timeout;
1139         __le16 tsb_tc0_replay_timeout;
1140         __le16 tsb_afc0_req_timeout;
1141         __le16 tsb_fc1_protection_timeout;
1142         __le16 tsb_tc1_replay_timeout;
1143         __le16 tsb_afc1_req_timeout;
1144         __le16 reserved_for_tc2[3];
1145         __le16 reserved_for_tc3[3];
1146 } __packed;
1147
1148 struct gb_svc_intf_set_pwrm_request {
1149         __u8    intf_id;
1150         __u8    hs_series;
1151         __u8    tx_mode;
1152         __u8    tx_gear;
1153         __u8    tx_nlanes;
1154         __u8    tx_amplitude;
1155         __u8    tx_hs_equalizer;
1156         __u8    rx_mode;
1157         __u8    rx_gear;
1158         __u8    rx_nlanes;
1159         __u8    flags;
1160         __le32  quirks;
1161         struct gb_svc_l2_timer_cfg local_l2timerdata, remote_l2timerdata;
1162 } __packed;
1163
1164 struct gb_svc_intf_set_pwrm_response {
1165         __u8    result_code;
1166 } __packed;
1167
1168 struct gb_svc_key_event_request {
1169         __le16  key_code;
1170 #define GB_KEYCODE_ARA         0x00
1171
1172         __u8    key_event;
1173 #define GB_SVC_KEY_RELEASED    0x00
1174 #define GB_SVC_KEY_PRESSED     0x01
1175 } __packed;
1176
1177 #define GB_SVC_PWRMON_MAX_RAIL_COUNT            254
1178
1179 struct gb_svc_pwrmon_rail_count_get_response {
1180         __u8    rail_count;
1181 } __packed;
1182
1183 #define GB_SVC_PWRMON_RAIL_NAME_BUFSIZE         32
1184
1185 struct gb_svc_pwrmon_rail_names_get_response {
1186         __u8    status;
1187         __u8    name[][GB_SVC_PWRMON_RAIL_NAME_BUFSIZE];
1188 } __packed;
1189
1190 #define GB_SVC_PWRMON_TYPE_CURR                 0x01
1191 #define GB_SVC_PWRMON_TYPE_VOL                  0x02
1192 #define GB_SVC_PWRMON_TYPE_PWR                  0x03
1193
1194 #define GB_SVC_PWRMON_GET_SAMPLE_OK             0x00
1195 #define GB_SVC_PWRMON_GET_SAMPLE_INVAL          0x01
1196 #define GB_SVC_PWRMON_GET_SAMPLE_NOSUPP         0x02
1197 #define GB_SVC_PWRMON_GET_SAMPLE_HWERR          0x03
1198
1199 struct gb_svc_pwrmon_sample_get_request {
1200         __u8    rail_id;
1201         __u8    measurement_type;
1202 } __packed;
1203
1204 struct gb_svc_pwrmon_sample_get_response {
1205         __u8    result;
1206         __le32  measurement;
1207 } __packed;
1208
1209 struct gb_svc_pwrmon_intf_sample_get_request {
1210         __u8    intf_id;
1211         __u8    measurement_type;
1212 } __packed;
1213
1214 struct gb_svc_pwrmon_intf_sample_get_response {
1215         __u8    result;
1216         __le32  measurement;
1217 } __packed;
1218
1219 #define GB_SVC_MODULE_INSERTED_FLAG_NO_PRIMARY  0x0001
1220
1221 struct gb_svc_module_inserted_request {
1222         __u8    primary_intf_id;
1223         __u8    intf_count;
1224         __le16  flags;
1225 } __packed;
1226 /* module_inserted response has no payload */
1227
1228 struct gb_svc_module_removed_request {
1229         __u8    primary_intf_id;
1230 } __packed;
1231 /* module_removed response has no payload */
1232
1233 struct gb_svc_intf_activate_request {
1234         __u8    intf_id;
1235 } __packed;
1236
1237 #define GB_SVC_INTF_TYPE_UNKNOWN                0x00
1238 #define GB_SVC_INTF_TYPE_DUMMY                  0x01
1239 #define GB_SVC_INTF_TYPE_UNIPRO                 0x02
1240 #define GB_SVC_INTF_TYPE_GREYBUS                0x03
1241
1242 struct gb_svc_intf_activate_response {
1243         __u8    status;
1244         __u8    intf_type;
1245 } __packed;
1246
1247 struct gb_svc_intf_resume_request {
1248         __u8    intf_id;
1249 } __packed;
1250
1251 struct gb_svc_intf_resume_response {
1252         __u8    status;
1253 } __packed;
1254
1255 #define GB_SVC_INTF_MAILBOX_NONE                0x00
1256 #define GB_SVC_INTF_MAILBOX_AP                  0x01
1257 #define GB_SVC_INTF_MAILBOX_GREYBUS             0x02
1258
1259 struct gb_svc_intf_mailbox_event_request {
1260         __u8    intf_id;
1261         __le16  result_code;
1262         __le32  mailbox;
1263 } __packed;
1264 /* intf_mailbox_event response has no payload */
1265
1266 struct gb_svc_intf_oops_request {
1267         __u8    intf_id;
1268         __u8    reason;
1269 } __packed;
1270 /* intf_oops response has no payload */
1271
1272
1273 /* RAW */
1274
1275 /* Greybus raw request types */
1276 #define GB_RAW_TYPE_SEND                        0x02
1277
1278 struct gb_raw_send_request {
1279         __le32  len;
1280         __u8    data[];
1281 } __packed;
1282
1283
1284 /* UART */
1285
1286 /* Greybus UART operation types */
1287 #define GB_UART_TYPE_SEND_DATA                  0x02
1288 #define GB_UART_TYPE_RECEIVE_DATA               0x03    /* Unsolicited data */
1289 #define GB_UART_TYPE_SET_LINE_CODING            0x04
1290 #define GB_UART_TYPE_SET_CONTROL_LINE_STATE     0x05
1291 #define GB_UART_TYPE_SEND_BREAK                 0x06
1292 #define GB_UART_TYPE_SERIAL_STATE               0x07    /* Unsolicited data */
1293 #define GB_UART_TYPE_RECEIVE_CREDITS            0x08
1294 #define GB_UART_TYPE_FLUSH_FIFOS                0x09
1295
1296 /* Represents data from AP -> Module */
1297 struct gb_uart_send_data_request {
1298         __le16  size;
1299         __u8    data[];
1300 } __packed;
1301
1302 /* recv-data-request flags */
1303 #define GB_UART_RECV_FLAG_FRAMING               0x01    /* Framing error */
1304 #define GB_UART_RECV_FLAG_PARITY                0x02    /* Parity error */
1305 #define GB_UART_RECV_FLAG_OVERRUN               0x04    /* Overrun error */
1306 #define GB_UART_RECV_FLAG_BREAK                 0x08    /* Break */
1307
1308 /* Represents data from Module -> AP */
1309 struct gb_uart_recv_data_request {
1310         __le16  size;
1311         __u8    flags;
1312         __u8    data[];
1313 } __packed;
1314
1315 struct gb_uart_receive_credits_request {
1316         __le16  count;
1317 } __packed;
1318
1319 struct gb_uart_set_line_coding_request {
1320         __le32  rate;
1321         __u8    format;
1322 #define GB_SERIAL_1_STOP_BITS                   0
1323 #define GB_SERIAL_1_5_STOP_BITS                 1
1324 #define GB_SERIAL_2_STOP_BITS                   2
1325
1326         __u8    parity;
1327 #define GB_SERIAL_NO_PARITY                     0
1328 #define GB_SERIAL_ODD_PARITY                    1
1329 #define GB_SERIAL_EVEN_PARITY                   2
1330 #define GB_SERIAL_MARK_PARITY                   3
1331 #define GB_SERIAL_SPACE_PARITY                  4
1332
1333         __u8    data_bits;
1334
1335         __u8    flow_control;
1336 #define GB_SERIAL_AUTO_RTSCTS_EN                0x1
1337 } __packed;
1338
1339 /* output control lines */
1340 #define GB_UART_CTRL_DTR                        0x01
1341 #define GB_UART_CTRL_RTS                        0x02
1342
1343 struct gb_uart_set_control_line_state_request {
1344         __u8    control;
1345 } __packed;
1346
1347 struct gb_uart_set_break_request {
1348         __u8    state;
1349 } __packed;
1350
1351 /* input control lines and line errors */
1352 #define GB_UART_CTRL_DCD                        0x01
1353 #define GB_UART_CTRL_DSR                        0x02
1354 #define GB_UART_CTRL_RI                         0x04
1355
1356 struct gb_uart_serial_state_request {
1357         __u8    control;
1358 } __packed;
1359
1360 struct gb_uart_serial_flush_request {
1361         __u8    flags;
1362 #define GB_SERIAL_FLAG_FLUSH_TRANSMITTER        0x01
1363 #define GB_SERIAL_FLAG_FLUSH_RECEIVER           0x02
1364 } __packed;
1365
1366 /* Loopback */
1367
1368 /* Greybus loopback request types */
1369 #define GB_LOOPBACK_TYPE_PING                   0x02
1370 #define GB_LOOPBACK_TYPE_TRANSFER               0x03
1371 #define GB_LOOPBACK_TYPE_SINK                   0x04
1372
1373 /*
1374  * Loopback request/response header format should be identical
1375  * to simplify bandwidth and data movement analysis.
1376  */
1377 struct gb_loopback_transfer_request {
1378         __le32  len;
1379         __le32  reserved0;
1380         __le32  reserved1;
1381         __u8    data[];
1382 } __packed;
1383
1384 struct gb_loopback_transfer_response {
1385         __le32  len;
1386         __le32  reserved0;
1387         __le32  reserved1;
1388         __u8    data[];
1389 } __packed;
1390
1391 /* SDIO */
1392 /* Greybus SDIO operation types */
1393 #define GB_SDIO_TYPE_GET_CAPABILITIES           0x02
1394 #define GB_SDIO_TYPE_SET_IOS                    0x03
1395 #define GB_SDIO_TYPE_COMMAND                    0x04
1396 #define GB_SDIO_TYPE_TRANSFER                   0x05
1397 #define GB_SDIO_TYPE_EVENT                      0x06
1398
1399 /* get caps response: request has no payload */
1400 struct gb_sdio_get_caps_response {
1401         __le32  caps;
1402 #define GB_SDIO_CAP_NONREMOVABLE        0x00000001
1403 #define GB_SDIO_CAP_4_BIT_DATA          0x00000002
1404 #define GB_SDIO_CAP_8_BIT_DATA          0x00000004
1405 #define GB_SDIO_CAP_MMC_HS              0x00000008
1406 #define GB_SDIO_CAP_SD_HS               0x00000010
1407 #define GB_SDIO_CAP_ERASE               0x00000020
1408 #define GB_SDIO_CAP_1_2V_DDR            0x00000040
1409 #define GB_SDIO_CAP_1_8V_DDR            0x00000080
1410 #define GB_SDIO_CAP_POWER_OFF_CARD      0x00000100
1411 #define GB_SDIO_CAP_UHS_SDR12           0x00000200
1412 #define GB_SDIO_CAP_UHS_SDR25           0x00000400
1413 #define GB_SDIO_CAP_UHS_SDR50           0x00000800
1414 #define GB_SDIO_CAP_UHS_SDR104          0x00001000
1415 #define GB_SDIO_CAP_UHS_DDR50           0x00002000
1416 #define GB_SDIO_CAP_DRIVER_TYPE_A       0x00004000
1417 #define GB_SDIO_CAP_DRIVER_TYPE_C       0x00008000
1418 #define GB_SDIO_CAP_DRIVER_TYPE_D       0x00010000
1419 #define GB_SDIO_CAP_HS200_1_2V          0x00020000
1420 #define GB_SDIO_CAP_HS200_1_8V          0x00040000
1421 #define GB_SDIO_CAP_HS400_1_2V          0x00080000
1422 #define GB_SDIO_CAP_HS400_1_8V          0x00100000
1423
1424         /* see possible values below at vdd */
1425         __le32 ocr;
1426         __le32 f_min;
1427         __le32 f_max;
1428         __le16 max_blk_count;
1429         __le16 max_blk_size;
1430 } __packed;
1431
1432 /* set ios request: response has no payload */
1433 struct gb_sdio_set_ios_request {
1434         __le32  clock;
1435         __le32  vdd;
1436 #define GB_SDIO_VDD_165_195     0x00000001
1437 #define GB_SDIO_VDD_20_21       0x00000002
1438 #define GB_SDIO_VDD_21_22       0x00000004
1439 #define GB_SDIO_VDD_22_23       0x00000008
1440 #define GB_SDIO_VDD_23_24       0x00000010
1441 #define GB_SDIO_VDD_24_25       0x00000020
1442 #define GB_SDIO_VDD_25_26       0x00000040
1443 #define GB_SDIO_VDD_26_27       0x00000080
1444 #define GB_SDIO_VDD_27_28       0x00000100
1445 #define GB_SDIO_VDD_28_29       0x00000200
1446 #define GB_SDIO_VDD_29_30       0x00000400
1447 #define GB_SDIO_VDD_30_31       0x00000800
1448 #define GB_SDIO_VDD_31_32       0x00001000
1449 #define GB_SDIO_VDD_32_33       0x00002000
1450 #define GB_SDIO_VDD_33_34       0x00004000
1451 #define GB_SDIO_VDD_34_35       0x00008000
1452 #define GB_SDIO_VDD_35_36       0x00010000
1453
1454         __u8    bus_mode;
1455 #define GB_SDIO_BUSMODE_OPENDRAIN       0x00
1456 #define GB_SDIO_BUSMODE_PUSHPULL        0x01
1457
1458         __u8    power_mode;
1459 #define GB_SDIO_POWER_OFF       0x00
1460 #define GB_SDIO_POWER_UP        0x01
1461 #define GB_SDIO_POWER_ON        0x02
1462 #define GB_SDIO_POWER_UNDEFINED 0x03
1463
1464         __u8    bus_width;
1465 #define GB_SDIO_BUS_WIDTH_1     0x00
1466 #define GB_SDIO_BUS_WIDTH_4     0x02
1467 #define GB_SDIO_BUS_WIDTH_8     0x03
1468
1469         __u8    timing;
1470 #define GB_SDIO_TIMING_LEGACY           0x00
1471 #define GB_SDIO_TIMING_MMC_HS           0x01
1472 #define GB_SDIO_TIMING_SD_HS            0x02
1473 #define GB_SDIO_TIMING_UHS_SDR12        0x03
1474 #define GB_SDIO_TIMING_UHS_SDR25        0x04
1475 #define GB_SDIO_TIMING_UHS_SDR50        0x05
1476 #define GB_SDIO_TIMING_UHS_SDR104       0x06
1477 #define GB_SDIO_TIMING_UHS_DDR50        0x07
1478 #define GB_SDIO_TIMING_MMC_DDR52        0x08
1479 #define GB_SDIO_TIMING_MMC_HS200        0x09
1480 #define GB_SDIO_TIMING_MMC_HS400        0x0A
1481
1482         __u8    signal_voltage;
1483 #define GB_SDIO_SIGNAL_VOLTAGE_330      0x00
1484 #define GB_SDIO_SIGNAL_VOLTAGE_180      0x01
1485 #define GB_SDIO_SIGNAL_VOLTAGE_120      0x02
1486
1487         __u8    drv_type;
1488 #define GB_SDIO_SET_DRIVER_TYPE_B       0x00
1489 #define GB_SDIO_SET_DRIVER_TYPE_A       0x01
1490 #define GB_SDIO_SET_DRIVER_TYPE_C       0x02
1491 #define GB_SDIO_SET_DRIVER_TYPE_D       0x03
1492 } __packed;
1493
1494 /* command request */
1495 struct gb_sdio_command_request {
1496         __u8    cmd;
1497         __u8    cmd_flags;
1498 #define GB_SDIO_RSP_NONE                0x00
1499 #define GB_SDIO_RSP_PRESENT             0x01
1500 #define GB_SDIO_RSP_136                 0x02
1501 #define GB_SDIO_RSP_CRC                 0x04
1502 #define GB_SDIO_RSP_BUSY                0x08
1503 #define GB_SDIO_RSP_OPCODE              0x10
1504
1505         __u8    cmd_type;
1506 #define GB_SDIO_CMD_AC          0x00
1507 #define GB_SDIO_CMD_ADTC        0x01
1508 #define GB_SDIO_CMD_BC          0x02
1509 #define GB_SDIO_CMD_BCR         0x03
1510
1511         __le32  cmd_arg;
1512         __le16  data_blocks;
1513         __le16  data_blksz;
1514 } __packed;
1515
1516 struct gb_sdio_command_response {
1517         __le32  resp[4];
1518 } __packed;
1519
1520 /* transfer request */
1521 struct gb_sdio_transfer_request {
1522         __u8    data_flags;
1523 #define GB_SDIO_DATA_WRITE      0x01
1524 #define GB_SDIO_DATA_READ       0x02
1525 #define GB_SDIO_DATA_STREAM     0x04
1526
1527         __le16  data_blocks;
1528         __le16  data_blksz;
1529         __u8    data[];
1530 } __packed;
1531
1532 struct gb_sdio_transfer_response {
1533         __le16  data_blocks;
1534         __le16  data_blksz;
1535         __u8    data[];
1536 } __packed;
1537
1538 /* event request: generated by module and is defined as unidirectional */
1539 struct gb_sdio_event_request {
1540         __u8    event;
1541 #define GB_SDIO_CARD_INSERTED   0x01
1542 #define GB_SDIO_CARD_REMOVED    0x02
1543 #define GB_SDIO_WP              0x04
1544 } __packed;
1545
1546 /* Camera */
1547
1548 /* Greybus Camera request types */
1549 #define GB_CAMERA_TYPE_CAPABILITIES             0x02
1550 #define GB_CAMERA_TYPE_CONFIGURE_STREAMS        0x03
1551 #define GB_CAMERA_TYPE_CAPTURE                  0x04
1552 #define GB_CAMERA_TYPE_FLUSH                    0x05
1553 #define GB_CAMERA_TYPE_METADATA                 0x06
1554
1555 #define GB_CAMERA_MAX_STREAMS                   4
1556 #define GB_CAMERA_MAX_SETTINGS_SIZE             8192
1557
1558 /* Greybus Camera Configure Streams request payload */
1559 struct gb_camera_stream_config_request {
1560         __le16 width;
1561         __le16 height;
1562         __le16 format;
1563         __le16 padding;
1564 } __packed;
1565
1566 struct gb_camera_configure_streams_request {
1567         __u8 num_streams;
1568         __u8 flags;
1569 #define GB_CAMERA_CONFIGURE_STREAMS_TEST_ONLY   0x01
1570         __le16 padding;
1571         struct gb_camera_stream_config_request config[];
1572 } __packed;
1573
1574 /* Greybus Camera Configure Streams response payload */
1575 struct gb_camera_stream_config_response {
1576         __le16 width;
1577         __le16 height;
1578         __le16 format;
1579         __u8 virtual_channel;
1580         __u8 data_type[2];
1581         __le16 max_pkt_size;
1582         __u8 padding;
1583         __le32 max_size;
1584 } __packed;
1585
1586 struct gb_camera_configure_streams_response {
1587         __u8 num_streams;
1588 #define GB_CAMERA_CONFIGURE_STREAMS_ADJUSTED    0x01
1589         __u8 flags;
1590         __u8 padding[2];
1591         __le32 data_rate;
1592         struct gb_camera_stream_config_response config[];
1593 };
1594
1595 /* Greybus Camera Capture request payload - response has no payload */
1596 struct gb_camera_capture_request {
1597         __le32 request_id;
1598         __u8 streams;
1599         __u8 padding;
1600         __le16 num_frames;
1601         __u8 settings[];
1602 } __packed;
1603
1604 /* Greybus Camera Flush response payload - request has no payload */
1605 struct gb_camera_flush_response {
1606         __le32 request_id;
1607 } __packed;
1608
1609 /* Greybus Camera Metadata request payload - operation has no response */
1610 struct gb_camera_metadata_request {
1611         __le32 request_id;
1612         __le16 frame_number;
1613         __u8 stream;
1614         __u8 padding;
1615         __u8 metadata[];
1616 } __packed;
1617
1618 /* Lights */
1619
1620 /* Greybus Lights request types */
1621 #define GB_LIGHTS_TYPE_GET_LIGHTS               0x02
1622 #define GB_LIGHTS_TYPE_GET_LIGHT_CONFIG         0x03
1623 #define GB_LIGHTS_TYPE_GET_CHANNEL_CONFIG       0x04
1624 #define GB_LIGHTS_TYPE_GET_CHANNEL_FLASH_CONFIG 0x05
1625 #define GB_LIGHTS_TYPE_SET_BRIGHTNESS           0x06
1626 #define GB_LIGHTS_TYPE_SET_BLINK                0x07
1627 #define GB_LIGHTS_TYPE_SET_COLOR                0x08
1628 #define GB_LIGHTS_TYPE_SET_FADE                 0x09
1629 #define GB_LIGHTS_TYPE_EVENT                    0x0A
1630 #define GB_LIGHTS_TYPE_SET_FLASH_INTENSITY      0x0B
1631 #define GB_LIGHTS_TYPE_SET_FLASH_STROBE         0x0C
1632 #define GB_LIGHTS_TYPE_SET_FLASH_TIMEOUT        0x0D
1633 #define GB_LIGHTS_TYPE_GET_FLASH_FAULT          0x0E
1634
1635 /* Greybus Light modes */
1636
1637 /*
1638  * if you add any specific mode below, update also the
1639  * GB_CHANNEL_MODE_DEFINED_RANGE value accordingly
1640  */
1641 #define GB_CHANNEL_MODE_NONE            0x00000000
1642 #define GB_CHANNEL_MODE_BATTERY         0x00000001
1643 #define GB_CHANNEL_MODE_POWER           0x00000002
1644 #define GB_CHANNEL_MODE_WIRELESS        0x00000004
1645 #define GB_CHANNEL_MODE_BLUETOOTH       0x00000008
1646 #define GB_CHANNEL_MODE_KEYBOARD        0x00000010
1647 #define GB_CHANNEL_MODE_BUTTONS         0x00000020
1648 #define GB_CHANNEL_MODE_NOTIFICATION    0x00000040
1649 #define GB_CHANNEL_MODE_ATTENTION       0x00000080
1650 #define GB_CHANNEL_MODE_FLASH           0x00000100
1651 #define GB_CHANNEL_MODE_TORCH           0x00000200
1652 #define GB_CHANNEL_MODE_INDICATOR       0x00000400
1653
1654 /* Lights Mode valid bit values */
1655 #define GB_CHANNEL_MODE_DEFINED_RANGE   0x000004FF
1656 #define GB_CHANNEL_MODE_VENDOR_RANGE    0x00F00000
1657
1658 /* Greybus Light Channels Flags */
1659 #define GB_LIGHT_CHANNEL_MULTICOLOR     0x00000001
1660 #define GB_LIGHT_CHANNEL_FADER          0x00000002
1661 #define GB_LIGHT_CHANNEL_BLINK          0x00000004
1662
1663 /* get count of lights in module */
1664 struct gb_lights_get_lights_response {
1665         __u8    lights_count;
1666 } __packed;
1667
1668 /* light config request payload */
1669 struct gb_lights_get_light_config_request {
1670         __u8    id;
1671 } __packed;
1672
1673 /* light config response payload */
1674 struct gb_lights_get_light_config_response {
1675         __u8    channel_count;
1676         __u8    name[32];
1677 } __packed;
1678
1679 /* channel config request payload */
1680 struct gb_lights_get_channel_config_request {
1681         __u8    light_id;
1682         __u8    channel_id;
1683 } __packed;
1684
1685 /* channel flash config request payload */
1686 struct gb_lights_get_channel_flash_config_request {
1687         __u8    light_id;
1688         __u8    channel_id;
1689 } __packed;
1690
1691 /* channel config response payload */
1692 struct gb_lights_get_channel_config_response {
1693         __u8    max_brightness;
1694         __le32  flags;
1695         __le32  color;
1696         __u8    color_name[32];
1697         __le32  mode;
1698         __u8    mode_name[32];
1699 } __packed;
1700
1701 /* channel flash config response payload */
1702 struct gb_lights_get_channel_flash_config_response {
1703         __le32  intensity_min_uA;
1704         __le32  intensity_max_uA;
1705         __le32  intensity_step_uA;
1706         __le32  timeout_min_us;
1707         __le32  timeout_max_us;
1708         __le32  timeout_step_us;
1709 } __packed;
1710
1711 /* blink request payload: response have no payload */
1712 struct gb_lights_blink_request {
1713         __u8    light_id;
1714         __u8    channel_id;
1715         __le16  time_on_ms;
1716         __le16  time_off_ms;
1717 } __packed;
1718
1719 /* set brightness request payload: response have no payload */
1720 struct gb_lights_set_brightness_request {
1721         __u8    light_id;
1722         __u8    channel_id;
1723         __u8    brightness;
1724 } __packed;
1725
1726 /* set color request payload: response have no payload */
1727 struct gb_lights_set_color_request {
1728         __u8    light_id;
1729         __u8    channel_id;
1730         __le32  color;
1731 } __packed;
1732
1733 /* set fade request payload: response have no payload */
1734 struct gb_lights_set_fade_request {
1735         __u8    light_id;
1736         __u8    channel_id;
1737         __u8    fade_in;
1738         __u8    fade_out;
1739 } __packed;
1740
1741 /* event request: generated by module */
1742 struct gb_lights_event_request {
1743         __u8    light_id;
1744         __u8    event;
1745 #define GB_LIGHTS_LIGHT_CONFIG          0x01
1746 } __packed;
1747
1748 /* set flash intensity request payload: response have no payload */
1749 struct gb_lights_set_flash_intensity_request {
1750         __u8    light_id;
1751         __u8    channel_id;
1752         __le32  intensity_uA;
1753 } __packed;
1754
1755 /* set flash strobe state request payload: response have no payload */
1756 struct gb_lights_set_flash_strobe_request {
1757         __u8    light_id;
1758         __u8    channel_id;
1759         __u8    state;
1760 } __packed;
1761
1762 /* set flash timeout request payload: response have no payload */
1763 struct gb_lights_set_flash_timeout_request {
1764         __u8    light_id;
1765         __u8    channel_id;
1766         __le32  timeout_us;
1767 } __packed;
1768
1769 /* get flash fault request payload */
1770 struct gb_lights_get_flash_fault_request {
1771         __u8    light_id;
1772         __u8    channel_id;
1773 } __packed;
1774
1775 /* get flash fault response payload */
1776 struct gb_lights_get_flash_fault_response {
1777         __le32  fault;
1778 #define GB_LIGHTS_FLASH_FAULT_OVER_VOLTAGE              0x00000000
1779 #define GB_LIGHTS_FLASH_FAULT_TIMEOUT                   0x00000001
1780 #define GB_LIGHTS_FLASH_FAULT_OVER_TEMPERATURE          0x00000002
1781 #define GB_LIGHTS_FLASH_FAULT_SHORT_CIRCUIT             0x00000004
1782 #define GB_LIGHTS_FLASH_FAULT_OVER_CURRENT              0x00000008
1783 #define GB_LIGHTS_FLASH_FAULT_INDICATOR                 0x00000010
1784 #define GB_LIGHTS_FLASH_FAULT_UNDER_VOLTAGE             0x00000020
1785 #define GB_LIGHTS_FLASH_FAULT_INPUT_VOLTAGE             0x00000040
1786 #define GB_LIGHTS_FLASH_FAULT_LED_OVER_TEMPERATURE      0x00000080
1787 } __packed;
1788
1789 /* Audio */
1790
1791 #define GB_AUDIO_TYPE_GET_TOPOLOGY_SIZE         0x02
1792 #define GB_AUDIO_TYPE_GET_TOPOLOGY              0x03
1793 #define GB_AUDIO_TYPE_GET_CONTROL               0x04
1794 #define GB_AUDIO_TYPE_SET_CONTROL               0x05
1795 #define GB_AUDIO_TYPE_ENABLE_WIDGET             0x06
1796 #define GB_AUDIO_TYPE_DISABLE_WIDGET            0x07
1797 #define GB_AUDIO_TYPE_GET_PCM                   0x08
1798 #define GB_AUDIO_TYPE_SET_PCM                   0x09
1799 #define GB_AUDIO_TYPE_SET_TX_DATA_SIZE          0x0a
1800                                                 /* 0x0b unused */
1801 #define GB_AUDIO_TYPE_ACTIVATE_TX               0x0c
1802 #define GB_AUDIO_TYPE_DEACTIVATE_TX             0x0d
1803 #define GB_AUDIO_TYPE_SET_RX_DATA_SIZE          0x0e
1804                                                 /* 0x0f unused */
1805 #define GB_AUDIO_TYPE_ACTIVATE_RX               0x10
1806 #define GB_AUDIO_TYPE_DEACTIVATE_RX             0x11
1807 #define GB_AUDIO_TYPE_JACK_EVENT                0x12
1808 #define GB_AUDIO_TYPE_BUTTON_EVENT              0x13
1809 #define GB_AUDIO_TYPE_STREAMING_EVENT           0x14
1810 #define GB_AUDIO_TYPE_SEND_DATA                 0x15
1811
1812 /* Module must be able to buffer 10ms of audio data, minimum */
1813 #define GB_AUDIO_SAMPLE_BUFFER_MIN_US           10000
1814
1815 #define GB_AUDIO_PCM_NAME_MAX                   32
1816 #define AUDIO_DAI_NAME_MAX                      32
1817 #define AUDIO_CONTROL_NAME_MAX                  32
1818 #define AUDIO_CTL_ELEM_NAME_MAX                 44
1819 #define AUDIO_ENUM_NAME_MAX                     64
1820 #define AUDIO_WIDGET_NAME_MAX                   32
1821
1822 /* See SNDRV_PCM_FMTBIT_* in Linux source */
1823 #define GB_AUDIO_PCM_FMT_S8                     BIT(0)
1824 #define GB_AUDIO_PCM_FMT_U8                     BIT(1)
1825 #define GB_AUDIO_PCM_FMT_S16_LE                 BIT(2)
1826 #define GB_AUDIO_PCM_FMT_S16_BE                 BIT(3)
1827 #define GB_AUDIO_PCM_FMT_U16_LE                 BIT(4)
1828 #define GB_AUDIO_PCM_FMT_U16_BE                 BIT(5)
1829 #define GB_AUDIO_PCM_FMT_S24_LE                 BIT(6)
1830 #define GB_AUDIO_PCM_FMT_S24_BE                 BIT(7)
1831 #define GB_AUDIO_PCM_FMT_U24_LE                 BIT(8)
1832 #define GB_AUDIO_PCM_FMT_U24_BE                 BIT(9)
1833 #define GB_AUDIO_PCM_FMT_S32_LE                 BIT(10)
1834 #define GB_AUDIO_PCM_FMT_S32_BE                 BIT(11)
1835 #define GB_AUDIO_PCM_FMT_U32_LE                 BIT(12)
1836 #define GB_AUDIO_PCM_FMT_U32_BE                 BIT(13)
1837
1838 /* See SNDRV_PCM_RATE_* in Linux source */
1839 #define GB_AUDIO_PCM_RATE_5512                  BIT(0)
1840 #define GB_AUDIO_PCM_RATE_8000                  BIT(1)
1841 #define GB_AUDIO_PCM_RATE_11025                 BIT(2)
1842 #define GB_AUDIO_PCM_RATE_16000                 BIT(3)
1843 #define GB_AUDIO_PCM_RATE_22050                 BIT(4)
1844 #define GB_AUDIO_PCM_RATE_32000                 BIT(5)
1845 #define GB_AUDIO_PCM_RATE_44100                 BIT(6)
1846 #define GB_AUDIO_PCM_RATE_48000                 BIT(7)
1847 #define GB_AUDIO_PCM_RATE_64000                 BIT(8)
1848 #define GB_AUDIO_PCM_RATE_88200                 BIT(9)
1849 #define GB_AUDIO_PCM_RATE_96000                 BIT(10)
1850 #define GB_AUDIO_PCM_RATE_176400                BIT(11)
1851 #define GB_AUDIO_PCM_RATE_192000                BIT(12)
1852
1853 #define GB_AUDIO_STREAM_TYPE_CAPTURE            0x1
1854 #define GB_AUDIO_STREAM_TYPE_PLAYBACK           0x2
1855
1856 #define GB_AUDIO_CTL_ELEM_ACCESS_READ           BIT(0)
1857 #define GB_AUDIO_CTL_ELEM_ACCESS_WRITE          BIT(1)
1858
1859 /* See SNDRV_CTL_ELEM_TYPE_* in Linux source */
1860 #define GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN          0x01
1861 #define GB_AUDIO_CTL_ELEM_TYPE_INTEGER          0x02
1862 #define GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED       0x03
1863 #define GB_AUDIO_CTL_ELEM_TYPE_INTEGER64        0x06
1864
1865 /* See SNDRV_CTL_ELEM_IFACE_* in Linux source */
1866 #define GB_AUDIO_CTL_ELEM_IFACE_CARD            0x00
1867 #define GB_AUDIO_CTL_ELEM_IFACE_HWDEP           0x01
1868 #define GB_AUDIO_CTL_ELEM_IFACE_MIXER           0x02
1869 #define GB_AUDIO_CTL_ELEM_IFACE_PCM             0x03
1870 #define GB_AUDIO_CTL_ELEM_IFACE_RAWMIDI         0x04
1871 #define GB_AUDIO_CTL_ELEM_IFACE_TIMER           0x05
1872 #define GB_AUDIO_CTL_ELEM_IFACE_SEQUENCER       0x06
1873
1874 /* SNDRV_CTL_ELEM_ACCESS_* in Linux source */
1875 #define GB_AUDIO_ACCESS_READ                    BIT(0)
1876 #define GB_AUDIO_ACCESS_WRITE                   BIT(1)
1877 #define GB_AUDIO_ACCESS_VOLATILE                BIT(2)
1878 #define GB_AUDIO_ACCESS_TIMESTAMP               BIT(3)
1879 #define GB_AUDIO_ACCESS_TLV_READ                BIT(4)
1880 #define GB_AUDIO_ACCESS_TLV_WRITE               BIT(5)
1881 #define GB_AUDIO_ACCESS_TLV_COMMAND             BIT(6)
1882 #define GB_AUDIO_ACCESS_INACTIVE                BIT(7)
1883 #define GB_AUDIO_ACCESS_LOCK                    BIT(8)
1884 #define GB_AUDIO_ACCESS_OWNER                   BIT(9)
1885
1886 /* enum snd_soc_dapm_type */
1887 #define GB_AUDIO_WIDGET_TYPE_INPUT              0x0
1888 #define GB_AUDIO_WIDGET_TYPE_OUTPUT             0x1
1889 #define GB_AUDIO_WIDGET_TYPE_MUX                0x2
1890 #define GB_AUDIO_WIDGET_TYPE_VIRT_MUX           0x3
1891 #define GB_AUDIO_WIDGET_TYPE_VALUE_MUX          0x4
1892 #define GB_AUDIO_WIDGET_TYPE_MIXER              0x5
1893 #define GB_AUDIO_WIDGET_TYPE_MIXER_NAMED_CTL    0x6
1894 #define GB_AUDIO_WIDGET_TYPE_PGA                0x7
1895 #define GB_AUDIO_WIDGET_TYPE_OUT_DRV            0x8
1896 #define GB_AUDIO_WIDGET_TYPE_ADC                0x9
1897 #define GB_AUDIO_WIDGET_TYPE_DAC                0xa
1898 #define GB_AUDIO_WIDGET_TYPE_MICBIAS            0xb
1899 #define GB_AUDIO_WIDGET_TYPE_MIC                0xc
1900 #define GB_AUDIO_WIDGET_TYPE_HP                 0xd
1901 #define GB_AUDIO_WIDGET_TYPE_SPK                0xe
1902 #define GB_AUDIO_WIDGET_TYPE_LINE               0xf
1903 #define GB_AUDIO_WIDGET_TYPE_SWITCH             0x10
1904 #define GB_AUDIO_WIDGET_TYPE_VMID               0x11
1905 #define GB_AUDIO_WIDGET_TYPE_PRE                0x12
1906 #define GB_AUDIO_WIDGET_TYPE_POST               0x13
1907 #define GB_AUDIO_WIDGET_TYPE_SUPPLY             0x14
1908 #define GB_AUDIO_WIDGET_TYPE_REGULATOR_SUPPLY   0x15
1909 #define GB_AUDIO_WIDGET_TYPE_CLOCK_SUPPLY       0x16
1910 #define GB_AUDIO_WIDGET_TYPE_AIF_IN             0x17
1911 #define GB_AUDIO_WIDGET_TYPE_AIF_OUT            0x18
1912 #define GB_AUDIO_WIDGET_TYPE_SIGGEN             0x19
1913 #define GB_AUDIO_WIDGET_TYPE_DAI_IN             0x1a
1914 #define GB_AUDIO_WIDGET_TYPE_DAI_OUT            0x1b
1915 #define GB_AUDIO_WIDGET_TYPE_DAI_LINK           0x1c
1916
1917 #define GB_AUDIO_WIDGET_STATE_DISABLED          0x01
1918 #define GB_AUDIO_WIDGET_STATE_ENAABLED          0x02
1919
1920 #define GB_AUDIO_JACK_EVENT_INSERTION           0x1
1921 #define GB_AUDIO_JACK_EVENT_REMOVAL             0x2
1922
1923 #define GB_AUDIO_BUTTON_EVENT_PRESS             0x1
1924 #define GB_AUDIO_BUTTON_EVENT_RELEASE           0x2
1925
1926 #define GB_AUDIO_STREAMING_EVENT_UNSPECIFIED    0x1
1927 #define GB_AUDIO_STREAMING_EVENT_HALT           0x2
1928 #define GB_AUDIO_STREAMING_EVENT_INTERNAL_ERROR 0x3
1929 #define GB_AUDIO_STREAMING_EVENT_PROTOCOL_ERROR 0x4
1930 #define GB_AUDIO_STREAMING_EVENT_FAILURE        0x5
1931 #define GB_AUDIO_STREAMING_EVENT_UNDERRUN       0x6
1932 #define GB_AUDIO_STREAMING_EVENT_OVERRUN        0x7
1933 #define GB_AUDIO_STREAMING_EVENT_CLOCKING       0x8
1934 #define GB_AUDIO_STREAMING_EVENT_DATA_LEN       0x9
1935
1936 #define GB_AUDIO_INVALID_INDEX                  0xff
1937
1938 /* enum snd_jack_types */
1939 #define GB_AUDIO_JACK_HEADPHONE                 0x0000001
1940 #define GB_AUDIO_JACK_MICROPHONE                0x0000002
1941 #define GB_AUDIO_JACK_HEADSET                   (GB_AUDIO_JACK_HEADPHONE | \
1942                                                  GB_AUDIO_JACK_MICROPHONE)
1943 #define GB_AUDIO_JACK_LINEOUT                   0x0000004
1944 #define GB_AUDIO_JACK_MECHANICAL                0x0000008
1945 #define GB_AUDIO_JACK_VIDEOOUT                  0x0000010
1946 #define GB_AUDIO_JACK_AVOUT                     (GB_AUDIO_JACK_LINEOUT | \
1947                                                  GB_AUDIO_JACK_VIDEOOUT)
1948 #define GB_AUDIO_JACK_LINEIN                    0x0000020
1949 #define GB_AUDIO_JACK_OC_HPHL                   0x0000040
1950 #define GB_AUDIO_JACK_OC_HPHR                   0x0000080
1951 #define GB_AUDIO_JACK_MICROPHONE2               0x0000200
1952 #define GB_AUDIO_JACK_ANC_HEADPHONE             (GB_AUDIO_JACK_HEADPHONE | \
1953                                                  GB_AUDIO_JACK_MICROPHONE | \
1954                                                  GB_AUDIO_JACK_MICROPHONE2)
1955 /* Kept separate from switches to facilitate implementation */
1956 #define GB_AUDIO_JACK_BTN_0                     0x4000000
1957 #define GB_AUDIO_JACK_BTN_1                     0x2000000
1958 #define GB_AUDIO_JACK_BTN_2                     0x1000000
1959 #define GB_AUDIO_JACK_BTN_3                     0x0800000
1960
1961 struct gb_audio_pcm {
1962         __u8    stream_name[GB_AUDIO_PCM_NAME_MAX];
1963         __le32  formats;        /* GB_AUDIO_PCM_FMT_* */
1964         __le32  rates;          /* GB_AUDIO_PCM_RATE_* */
1965         __u8    chan_min;
1966         __u8    chan_max;
1967         __u8    sig_bits;       /* number of bits of content */
1968 } __packed;
1969
1970 struct gb_audio_dai {
1971         __u8                    name[AUDIO_DAI_NAME_MAX];
1972         __le16                  data_cport;
1973         struct gb_audio_pcm     capture;
1974         struct gb_audio_pcm     playback;
1975 } __packed;
1976
1977 struct gb_audio_integer {
1978         __le32  min;
1979         __le32  max;
1980         __le32  step;
1981 } __packed;
1982
1983 struct gb_audio_integer64 {
1984         __le64  min;
1985         __le64  max;
1986         __le64  step;
1987 } __packed;
1988
1989 struct gb_audio_enumerated {
1990         __le32  items;
1991         __le16  names_length;
1992         __u8    names[];
1993 } __packed;
1994
1995 struct gb_audio_ctl_elem_info { /* See snd_ctl_elem_info in Linux source */
1996         __u8            type;           /* GB_AUDIO_CTL_ELEM_TYPE_* */
1997         __le16          dimen[4];
1998         union {
1999                 struct gb_audio_integer         integer;
2000                 struct gb_audio_integer64       integer64;
2001                 struct gb_audio_enumerated      enumerated;
2002         } value;
2003 } __packed;
2004
2005 struct gb_audio_ctl_elem_value { /* See snd_ctl_elem_value in Linux source */
2006         __le64                          timestamp; /* XXX needed? */
2007         union {
2008                 __le32  integer_value[2];       /* consider CTL_DOUBLE_xxx */
2009                 __le64  integer64_value[2];
2010                 __le32  enumerated_item[2];
2011         } value;
2012 } __packed;
2013
2014 struct gb_audio_control {
2015         __u8    name[AUDIO_CONTROL_NAME_MAX];
2016         __u8    id;             /* 0-63 */
2017         __u8    iface;          /* GB_AUDIO_IFACE_* */
2018         __le16  data_cport;
2019         __le32  access;         /* GB_AUDIO_ACCESS_* */
2020         __u8    count;          /* count of same elements */
2021         __u8    count_values;   /* count of values, max=2 for CTL_DOUBLE_xxx */
2022         struct gb_audio_ctl_elem_info   info;
2023 } __packed;
2024
2025 struct gb_audio_widget {
2026         __u8    name[AUDIO_WIDGET_NAME_MAX];
2027         __u8    sname[AUDIO_WIDGET_NAME_MAX];
2028         __u8    id;
2029         __u8    type;           /* GB_AUDIO_WIDGET_TYPE_* */
2030         __u8    state;          /* GB_AUDIO_WIDGET_STATE_* */
2031         __u8    ncontrols;
2032         struct gb_audio_control ctl[];  /* 'ncontrols' entries */
2033 } __packed;
2034
2035 struct gb_audio_route {
2036         __u8    source_id;      /* widget id */
2037         __u8    destination_id; /* widget id */
2038         __u8    control_id;     /* 0-63 */
2039         __u8    index;          /* Selection within the control */
2040 } __packed;
2041
2042 struct gb_audio_topology {
2043         __u8    num_dais;
2044         __u8    num_controls;
2045         __u8    num_widgets;
2046         __u8    num_routes;
2047         __le32  size_dais;
2048         __le32  size_controls;
2049         __le32  size_widgets;
2050         __le32  size_routes;
2051         __le32  jack_type;
2052         /*
2053          * struct gb_audio_dai          dai[num_dais];
2054          * struct gb_audio_control      controls[num_controls];
2055          * struct gb_audio_widget       widgets[num_widgets];
2056          * struct gb_audio_route        routes[num_routes];
2057          */
2058         __u8    data[];
2059 } __packed;
2060
2061 struct gb_audio_get_topology_size_response {
2062         __le16  size;
2063 } __packed;
2064
2065 struct gb_audio_get_topology_response {
2066         struct gb_audio_topology        topology;
2067 } __packed;
2068
2069 struct gb_audio_get_control_request {
2070         __u8    control_id;
2071         __u8    index;
2072 } __packed;
2073
2074 struct gb_audio_get_control_response {
2075         struct gb_audio_ctl_elem_value  value;
2076 } __packed;
2077
2078 struct gb_audio_set_control_request {
2079         __u8    control_id;
2080         __u8    index;
2081         struct gb_audio_ctl_elem_value  value;
2082 } __packed;
2083
2084 struct gb_audio_enable_widget_request {
2085         __u8    widget_id;
2086 } __packed;
2087
2088 struct gb_audio_disable_widget_request {
2089         __u8    widget_id;
2090 } __packed;
2091
2092 struct gb_audio_get_pcm_request {
2093         __le16  data_cport;
2094 } __packed;
2095
2096 struct gb_audio_get_pcm_response {
2097         __le32  format;
2098         __le32  rate;
2099         __u8    channels;
2100         __u8    sig_bits;
2101 } __packed;
2102
2103 struct gb_audio_set_pcm_request {
2104         __le16  data_cport;
2105         __le32  format;
2106         __le32  rate;
2107         __u8    channels;
2108         __u8    sig_bits;
2109 } __packed;
2110
2111 struct gb_audio_set_tx_data_size_request {
2112         __le16  data_cport;
2113         __le16  size;
2114 } __packed;
2115
2116 struct gb_audio_activate_tx_request {
2117         __le16  data_cport;
2118 } __packed;
2119
2120 struct gb_audio_deactivate_tx_request {
2121         __le16  data_cport;
2122 } __packed;
2123
2124 struct gb_audio_set_rx_data_size_request {
2125         __le16  data_cport;
2126         __le16  size;
2127 } __packed;
2128
2129 struct gb_audio_activate_rx_request {
2130         __le16  data_cport;
2131 } __packed;
2132
2133 struct gb_audio_deactivate_rx_request {
2134         __le16  data_cport;
2135 } __packed;
2136
2137 struct gb_audio_jack_event_request {
2138         __u8    widget_id;
2139         __u8    jack_attribute;
2140         __u8    event;
2141 } __packed;
2142
2143 struct gb_audio_button_event_request {
2144         __u8    widget_id;
2145         __u8    button_id;
2146         __u8    event;
2147 } __packed;
2148
2149 struct gb_audio_streaming_event_request {
2150         __le16  data_cport;
2151         __u8    event;
2152 } __packed;
2153
2154 struct gb_audio_send_data_request {
2155         __le64  timestamp;
2156         __u8    data[];
2157 } __packed;
2158
2159
2160 /* Log */
2161
2162 /* operations */
2163 #define GB_LOG_TYPE_SEND_LOG    0x02
2164
2165 /* length */
2166 #define GB_LOG_MAX_LEN          1024
2167
2168 struct gb_log_send_log_request {
2169         __le16  len;
2170         __u8    msg[];
2171 } __packed;
2172
2173 #endif /* __GREYBUS_PROTOCOLS_H */
2174