drivers/staging/greybus/greybus_protocols.h

   1 /*
   2  * This file is provided under a dual BSD/GPLv2 license.  When using or
   3  * redistributing this file, you may do so under either license.
   4  *
   5  * GPL LICENSE SUMMARY
   6  *
   7  * Copyright(c) 2014 - 2015 Google Inc. All rights reserved.
   8  * Copyright(c) 2014 - 2015 Linaro Ltd. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License version 2 for more details.
  18  *
  19  * BSD LICENSE
  20  *
  21  * Copyright(c) 2014 - 2015 Google Inc. All rights reserved.
  22  * Copyright(c) 2014 - 2015 Linaro Ltd. All rights reserved.
  23  *
  24  * Redistribution and use in source and binary forms, with or without
  25  * modification, are permitted provided that the following conditions
  26  * are met:
  27  *
  28  *  * Redistributions of source code must retain the above copyright
  29  *    notice, this list of conditions and the following disclaimer.
  30  *  * Redistributions in binary form must reproduce the above copyright
  31  *    notice, this list of conditions and the following disclaimer in
  32  *    the documentation and/or other materials provided with the
  33  *    distribution.
  34  *  * Neither the name of Google Inc. or Linaro Ltd. nor the names of
  35  *    its contributors may be used to endorse or promote products
  36  *    derived from this software without specific prior written
  37  *    permission.
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  40  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  41  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  42  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR
  43  * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  44  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  45  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  46  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  47  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  48  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  49  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  50  */
  51
  52 #ifndef __GREYBUS_PROTOCOLS_H
  53 #define __GREYBUS_PROTOCOLS_H
  54
  55 /* Fixed IDs for control/svc protocols */
  56
  57 /* SVC switch-port device ids */
  58 #define GB_SVC_DEVICE_ID_SVC                    0
  59 #define GB_SVC_DEVICE_ID_AP                     1
  60 #define GB_SVC_DEVICE_ID_MIN                    2
  61 #define GB_SVC_DEVICE_ID_MAX                    31
  62
  63 #define GB_SVC_CPORT_ID                         0
  64 #define GB_CONTROL_BUNDLE_ID                    0
  65 #define GB_CONTROL_CPORT_ID                     0
  66
  67
  68 /*
  69  * All operation messages (both requests and responses) begin with
  70  * a header that encodes the size of the message (header included).
  71  * This header also contains a unique identifier, that associates a
  72  * response message with its operation.  The header contains an
  73  * operation type field, whose interpretation is dependent on what
  74  * type of protocol is used over the connection.  The high bit
  75  * (0x80) of the operation type field is used to indicate whether
  76  * the message is a request (clear) or a response (set).
  77  *
  78  * Response messages include an additional result byte, which
  79  * communicates the result of the corresponding request.  A zero
  80  * result value means the operation completed successfully.  Any
  81  * other value indicates an error; in this case, the payload of the
  82  * response message (if any) is ignored.  The result byte must be
  83  * zero in the header for a request message.
  84  *
  85  * The wire format for all numeric fields in the header is little
  86  * endian.  Any operation-specific data begins immediately after the
  87  * header.
  88  */
  89 struct gb_operation_msg_hdr {
  90         __le16  size;           /* Size in bytes of header + payload */
  91         __le16  operation_id;   /* Operation unique id */
  92         __u8    type;           /* E.g GB_I2C_TYPE_* or GB_GPIO_TYPE_* */
  93         __u8    result;         /* Result of request (in responses only) */
  94         __u8    pad[2];         /* must be zero (ignore when read) */
  95 } __packed;
  96
  97
  98 /* Generic request types */
  99 #define GB_REQUEST_TYPE_PING                    0x00
 100 #define GB_REQUEST_TYPE_INVALID                 0x7f
 101
 102 struct gb_protocol_version_request {
 103         __u8    major;
 104         __u8    minor;
 105 } __packed;
 106
 107 struct gb_protocol_version_response {
 108         __u8    major;
 109         __u8    minor;
 110 } __packed;
 111
 112 /* Control Protocol */
 113
 114 /* Greybus control request types */
 115 #define GB_CONTROL_TYPE_VERSION                 0x01
 116 #define GB_CONTROL_TYPE_PROBE_AP                0x02
 117 #define GB_CONTROL_TYPE_GET_MANIFEST_SIZE       0x03
 118 #define GB_CONTROL_TYPE_GET_MANIFEST            0x04
 119 #define GB_CONTROL_TYPE_CONNECTED               0x05
 120 #define GB_CONTROL_TYPE_DISCONNECTED            0x06
 121 #define GB_CONTROL_TYPE_TIMESYNC_ENABLE         0x07
 122 #define GB_CONTROL_TYPE_TIMESYNC_DISABLE        0x08
 123 #define GB_CONTROL_TYPE_TIMESYNC_AUTHORITATIVE  0x09
 124 /*      Unused                                  0x0a */
 125 #define GB_CONTROL_TYPE_BUNDLE_VERSION          0x0b
 126 #define GB_CONTROL_TYPE_DISCONNECTING           0x0c
 127 #define GB_CONTROL_TYPE_TIMESYNC_GET_LAST_EVENT 0x0d
 128 #define GB_CONTROL_TYPE_MODE_SWITCH             0x0e
 129 #define GB_CONTROL_TYPE_BUNDLE_SUSPEND          0x0f
 130 #define GB_CONTROL_TYPE_BUNDLE_RESUME           0x10
 131 #define GB_CONTROL_TYPE_BUNDLE_DEACTIVATE       0x11
 132 #define GB_CONTROL_TYPE_BUNDLE_ACTIVATE         0x12
 133 #define GB_CONTROL_TYPE_INTF_SUSPEND_PREPARE            0x13
 134 #define GB_CONTROL_TYPE_INTF_DEACTIVATE_PREPARE 0x14
 135 #define GB_CONTROL_TYPE_INTF_HIBERNATE_ABORT    0x15
 136
 137 struct gb_control_version_request {
 138         __u8    major;
 139         __u8    minor;
 140 } __packed;
 141
 142 struct gb_control_version_response {
 143         __u8    major;
 144         __u8    minor;
 145 } __packed;
 146
 147 struct gb_control_bundle_version_request {
 148         __u8    bundle_id;
 149 } __packed;
 150
 151 struct gb_control_bundle_version_response {
 152         __u8    major;
 153         __u8    minor;
 154 } __packed;
 155
 156 /* Control protocol manifest get size request has no payload*/
 157 struct gb_control_get_manifest_size_response {
 158         __le16                  size;
 159 } __packed;
 160
 161 /* Control protocol manifest get request has no payload */
 162 struct gb_control_get_manifest_response {
 163         __u8                    data[0];
 164 } __packed;
 165
 166 /* Control protocol [dis]connected request */
 167 struct gb_control_connected_request {
 168         __le16                  cport_id;
 169 } __packed;
 170
 171 struct gb_control_disconnecting_request {
 172         __le16                  cport_id;
 173 } __packed;
 174 /* disconnecting response has no payload */
 175
 176 struct gb_control_disconnected_request {
 177         __le16                  cport_id;
 178 } __packed;
 179 /* Control protocol [dis]connected response has no payload */
 180
 181 #define GB_TIMESYNC_MAX_STROBES                 0x04
 182
 183 struct gb_control_timesync_enable_request {
 184         __u8    count;
 185         __le64  frame_time;
 186         __le32  strobe_delay;
 187         __le32  refclk;
 188 } __packed;
 189 /* timesync enable response has no payload */
 190
 191 struct gb_control_timesync_authoritative_request {
 192         __le64  frame_time[GB_TIMESYNC_MAX_STROBES];
 193 } __packed;
 194 /* timesync authoritative response has no payload */
 195
 196 /* timesync get_last_event_request has no payload */
 197 struct gb_control_timesync_get_last_event_response {
 198         __le64  frame_time;
 199 } __packed;
 200
 201 /*
 202  * All Bundle power management operations use the same request and response
 203  * layout and status codes.
 204  */
 205
 206 #define GB_CONTROL_BUNDLE_PM_OK         0x00
 207 #define GB_CONTROL_BUNDLE_PM_INVAL      0x01
 208 #define GB_CONTROL_BUNDLE_PM_BUSY       0x02
 209 #define GB_CONTROL_BUNDLE_PM_FAIL       0x03
 210 #define GB_CONTROL_BUNDLE_PM_NA         0x04
 211
 212 struct gb_control_bundle_pm_request {
 213         __u8    bundle_id;
 214 } __packed;
 215
 216 struct gb_control_bundle_pm_response {
 217         __u8    status;
 218 } __packed;
 219
 220 /*
 221  * Interface Suspend Prepare and Deactivate Prepare operations use the same
 222  * response layout and error codes. Define a single response structure and reuse
 223  * it. Both operations have no payload.
 224  */
 225
 226 #define GB_CONTROL_INTF_PM_OK           0x00
 227 #define GB_CONTROL_INTF_PM_BUSY         0x01
 228 #define GB_CONTROL_INTF_PM_NA           0x02
 229
 230 struct gb_control_intf_pm_response {
 231         __u8    status;
 232 } __packed;
 233
 234 /* APBridge protocol */
 235
 236 /* request APB1 log */
 237 #define GB_APB_REQUEST_LOG                      0x02
 238
 239 /* request to map a cport to bulk in and bulk out endpoints */
 240 #define GB_APB_REQUEST_EP_MAPPING               0x03
 241
 242 /* request to get the number of cports available */
 243 #define GB_APB_REQUEST_CPORT_COUNT              0x04
 244
 245 /* request to reset a cport state */
 246 #define GB_APB_REQUEST_RESET_CPORT              0x05
 247
 248 /* request to time the latency of messages on a given cport */
 249 #define GB_APB_REQUEST_LATENCY_TAG_EN           0x06
 250 #define GB_APB_REQUEST_LATENCY_TAG_DIS          0x07
 251
 252 /* request to control the CSI transmitter */
 253 #define GB_APB_REQUEST_CSI_TX_CONTROL           0x08
 254
 255 /* request to control the CSI transmitter */
 256 #define GB_APB_REQUEST_AUDIO_CONTROL            0x09
 257
 258 /* vendor requests to enable/disable CPort features */
 259 #define GB_APB_REQUEST_CPORT_FEAT_EN            0x0b
 260 #define GB_APB_REQUEST_CPORT_FEAT_DIS           0x0c
 261
 262 /* TimeSync commands */
 263 #define REQUEST_TIMESYNC_ENABLE                 0x0d
 264 #define REQUEST_TIMESYNC_DISABLE                0x0e
 265 #define REQUEST_TIMESYNC_AUTHORITATIVE          0x0f
 266 #define REQUEST_TIMESYNC_GET_LAST_EVENT         0x10
 267
 268 /* requests to set Greybus CPort flags */
 269 #define GB_APB_REQUEST_CPORT_FLAGS              0x11
 270
 271 /* ARPC command */
 272 #define APBA_REQUEST_ARPC_RUN                   0x12
 273
 274 struct gb_apb_request_cport_flags {
 275         __le32  flags;
 276 #define GB_APB_CPORT_FLAG_CONTROL               0x01
 277 #define GB_APB_CPORT_FLAG_HIGH_PRIO             0x02
 278 } __packed;
 279
 280 /* APBridgeA RPC (ARPC) */
 281
 282 enum arpc_result {
 283         ARPC_SUCCESS            = 0x00,
 284         ARPC_NO_MEMORY          = 0x01,
 285         ARPC_INVALID            = 0x02,
 286         ARPC_TIMEOUT            = 0x03,
 287         ARPC_UNKNOWN_ERROR      = 0xff,
 288 };
 289
 290 /* ARPC request */
 291 struct arpc_request_message {
 292         __le16  id;             /* RPC unique id */
 293         __le16  size;           /* Size in bytes of header + payload */
 294         __u8    type;           /* RPC type */
 295         __u8    data[0];        /* ARPC data */
 296 } __packed;
 297
 298 /* ARPC response */
 299 struct arpc_response_message {
 300         __le16  id;             /* RPC unique id */
 301         __u8    result;         /* Result of RPC */
 302 } __packed;
 303
 304 #define ARPC_CPORT_RESET                        0x00
 305
 306 struct arpc_cport_reset {
 307         __le16 cport_id;
 308 } __packed;
 309
 310 /* Firmware Download Protocol */
 311
 312 /* Request Types */
 313 #define GB_FW_DOWNLOAD_TYPE_FIND_FIRMWARE       0x01
 314 #define GB_FW_DOWNLOAD_TYPE_FETCH_FIRMWARE      0x02
 315 #define GB_FW_DOWNLOAD_TYPE_RELEASE_FIRMWARE    0x03
 316
 317 #define GB_FIRMWARE_TAG_MAX_LEN                 10
 318
 319 /* firmware download find firmware request/response */
 320 struct gb_fw_download_find_firmware_request {
 321         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_LEN];
 322 } __packed;
 323
 324 struct gb_fw_download_find_firmware_response {
 325         __u8                    firmware_id;
 326         __le32                  size;
 327 } __packed;
 328
 329 /* firmware download fetch firmware request/response */
 330 struct gb_fw_download_fetch_firmware_request {
 331         __u8                    firmware_id;
 332         __le32                  offset;
 333         __le32                  size;
 334 } __packed;
 335
 336 struct gb_fw_download_fetch_firmware_response {
 337         __u8                    data[0];
 338 } __packed;
 339
 340 /* firmware download release firmware request */
 341 struct gb_fw_download_release_firmware_request {
 342         __u8                    firmware_id;
 343 } __packed;
 344 /* firmware download release firmware response has no payload */
 345
 346
 347 /* Firmware Management Protocol */
 348
 349 /* Request Types */
 350 #define GB_FW_MGMT_TYPE_INTERFACE_FW_VERSION    0x01
 351 #define GB_FW_MGMT_TYPE_LOAD_AND_VALIDATE_FW    0x02
 352 #define GB_FW_MGMT_TYPE_LOADED_FW               0x03
 353 #define GB_FW_MGMT_TYPE_BACKEND_FW_VERSION      0x04
 354 #define GB_FW_MGMT_TYPE_BACKEND_FW_UPDATE       0x05
 355 #define GB_FW_MGMT_TYPE_BACKEND_FW_UPDATED      0x06
 356
 357 #define GB_FW_LOAD_METHOD_UNIPRO                0x01
 358 #define GB_FW_LOAD_METHOD_INTERNAL              0x02
 359
 360 #define GB_FW_LOAD_STATUS_FAILED                0x00
 361 #define GB_FW_LOAD_STATUS_UNVALIDATED           0x01
 362 #define GB_FW_LOAD_STATUS_VALIDATED             0x02
 363 #define GB_FW_LOAD_STATUS_VALIDATION_FAILED     0x03
 364
 365 #define GB_FW_BACKEND_FW_STATUS_SUCCESS         0x01
 366 #define GB_FW_BACKEND_FW_STATUS_FAIL_FIND       0x02
 367 #define GB_FW_BACKEND_FW_STATUS_FAIL_FETCH      0x03
 368 #define GB_FW_BACKEND_FW_STATUS_FAIL_WRITE      0x04
 369 #define GB_FW_BACKEND_FW_STATUS_INT             0x05
 370
 371 /* firmware management interface firmware version request has no payload */
 372 struct gb_fw_mgmt_interface_fw_version_response {
 373         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_LEN];
 374         __le16                  major;
 375         __le16                  minor;
 376 } __packed;
 377
 378 /* firmware management load and validate firmware request/response */
 379 struct gb_fw_mgmt_load_and_validate_fw_request {
 380         __u8                    request_id;
 381         __u8                    load_method;
 382         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_LEN];
 383 } __packed;
 384 /* firmware management load and validate firmware response has no payload*/
 385
 386 /* firmware management loaded firmware request */
 387 struct gb_fw_mgmt_loaded_fw_request {
 388         __u8                    request_id;
 389         __u8                    status;
 390         __le16                  major;
 391         __le16                  minor;
 392 } __packed;
 393 /* firmware management loaded firmware response has no payload */
 394
 395 /* firmware management backend firmware version request/response */
 396 struct gb_fw_mgmt_backend_fw_version_request {
 397         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_LEN];
 398 } __packed;
 399
 400 struct gb_fw_mgmt_backend_fw_version_response {
 401         __le16                  major;
 402         __le16                  minor;
 403 } __packed;
 404
 405 /* firmware management backend firmware update request */
 406 struct gb_fw_mgmt_backend_fw_update_request {
 407         __u8                    request_id;
 408         __u8                    firmware_tag[GB_FIRMWARE_TAG_MAX_LEN];
 409 } __packed;
 410 /* firmware management backend firmware update response has no payload */
 411
 412 /* firmware management backend firmware updated request */
 413 struct gb_fw_mgmt_backend_fw_updated_request {
 414         __u8                    request_id;
 415         __u8                    status;
 416 } __packed;
 417 /* firmware management backend firmware updated response has no payload */
 418
 419
 420 /* Component Authentication Protocol (CAP) */
 421
 422 /* Request Types */
 423 #define GB_CAP_TYPE_GET_ENDPOINT_UID    0x01
 424 #define GB_CAP_TYPE_GET_IMS_CERTIFICATE 0x02
 425 #define GB_CAP_TYPE_AUTHENTICATE        0x03
 426
 427 /* CAP get endpoint uid request has no payload */
 428 struct gb_cap_get_endpoint_uid_response {
 429         __u8                    uid[8];
 430 } __packed;
 431
 432 /* CAP get endpoint ims certificate request/response */
 433 struct gb_cap_get_ims_certificate_request {
 434         __le32                  certificate_class;
 435         __le32                  certificate_id;
 436 } __packed;
 437
 438 struct gb_cap_get_ims_certificate_response {
 439         __u8                    result_code;
 440         __u8                    certificate[0];
 441 } __packed;
 442
 443 /* CAP authenticate request/response */
 444 struct gb_cap_authenticate_request {
 445         __le32                  auth_type;
 446         __u8                    uid[8];
 447         __u8                    challenge[32];
 448 } __packed;
 449
 450 struct gb_cap_authenticate_response {
 451         __u8                    result_code;
 452         __u8                    response[64];
 453         __u8                    signature[0];
 454 } __packed;
 455
 456
 457 /* Bootrom Protocol */
 458
 459 /* Version of the Greybus bootrom protocol we support */
 460 #define GB_BOOTROM_VERSION_MAJOR                0x00
 461 #define GB_BOOTROM_VERSION_MINOR                0x01
 462
 463 /* Greybus bootrom request types */
 464 #define GB_BOOTROM_TYPE_VERSION                 0x01
 465 #define GB_BOOTROM_TYPE_FIRMWARE_SIZE           0x02
 466 #define GB_BOOTROM_TYPE_GET_FIRMWARE            0x03
 467 #define GB_BOOTROM_TYPE_READY_TO_BOOT           0x04
 468 #define GB_BOOTROM_TYPE_AP_READY                0x05    /* Request with no-payload */
 469 #define GB_BOOTROM_TYPE_GET_VID_PID             0x06    /* Request with no-payload */
 470
 471 /* Greybus bootrom boot stages */
 472 #define GB_BOOTROM_BOOT_STAGE_ONE               0x01 /* Reserved for the boot ROM */
 473 #define GB_BOOTROM_BOOT_STAGE_TWO               0x02 /* Bootrom package to be loaded by the boot ROM */
 474 #define GB_BOOTROM_BOOT_STAGE_THREE             0x03 /* Module personality package loaded by Stage 2 firmware */
 475
 476 /* Greybus bootrom ready to boot status */
 477 #define GB_BOOTROM_BOOT_STATUS_INVALID          0x00 /* Firmware blob could not be validated */
 478 #define GB_BOOTROM_BOOT_STATUS_INSECURE         0x01 /* Firmware blob is valid but insecure */
 479 #define GB_BOOTROM_BOOT_STATUS_SECURE           0x02 /* Firmware blob is valid and secure */
 480
 481 /* Max bootrom data fetch size in bytes */
 482 #define GB_BOOTROM_FETCH_MAX                    2000
 483
 484 struct gb_bootrom_version_request {
 485         __u8    major;
 486         __u8    minor;
 487 } __packed;
 488
 489 struct gb_bootrom_version_response {
 490         __u8    major;
 491         __u8    minor;
 492 } __packed;
 493
 494 /* Bootrom protocol firmware size request/response */
 495 struct gb_bootrom_firmware_size_request {
 496         __u8                    stage;
 497 } __packed;
 498
 499 struct gb_bootrom_firmware_size_response {
 500         __le32                  size;
 501 } __packed;
 502
 503 /* Bootrom protocol get firmware request/response */
 504 struct gb_bootrom_get_firmware_request {
 505         __le32                  offset;
 506         __le32                  size;
 507 } __packed;
 508
 509 struct gb_bootrom_get_firmware_response {
 510         __u8                    data[0];
 511 } __packed;
 512
 513 /* Bootrom protocol Ready to boot request */
 514 struct gb_bootrom_ready_to_boot_request {
 515         __u8                    status;
 516 } __packed;
 517 /* Bootrom protocol Ready to boot response has no payload */
 518
 519 /* Bootrom protocol get VID/PID request has no payload */
 520 struct gb_bootrom_get_vid_pid_response {
 521         __le32                  vendor_id;
 522         __le32                  product_id;
 523 } __packed;
 524
 525
 526 /* Power Supply */
 527
 528 /* Greybus power supply request types */
 529 #define GB_POWER_SUPPLY_TYPE_GET_SUPPLIES               0x02
 530 #define GB_POWER_SUPPLY_TYPE_GET_DESCRIPTION            0x03
 531 #define GB_POWER_SUPPLY_TYPE_GET_PROP_DESCRIPTORS       0x04
 532 #define GB_POWER_SUPPLY_TYPE_GET_PROPERTY               0x05
 533 #define GB_POWER_SUPPLY_TYPE_SET_PROPERTY               0x06
 534 #define GB_POWER_SUPPLY_TYPE_EVENT                      0x07
 535
 536 /* Greybus power supply battery technologies types */
 537 #define GB_POWER_SUPPLY_TECH_UNKNOWN                    0x0000
 538 #define GB_POWER_SUPPLY_TECH_NiMH                       0x0001
 539 #define GB_POWER_SUPPLY_TECH_LION                       0x0002
 540 #define GB_POWER_SUPPLY_TECH_LIPO                       0x0003
 541 #define GB_POWER_SUPPLY_TECH_LiFe                       0x0004
 542 #define GB_POWER_SUPPLY_TECH_NiCd                       0x0005
 543 #define GB_POWER_SUPPLY_TECH_LiMn                       0x0006
 544
 545 /* Greybus power supply types */
 546 #define GB_POWER_SUPPLY_UNKNOWN_TYPE                    0x0000
 547 #define GB_POWER_SUPPLY_BATTERY_TYPE                    0x0001
 548 #define GB_POWER_SUPPLY_UPS_TYPE                        0x0002
 549 #define GB_POWER_SUPPLY_MAINS_TYPE                      0x0003
 550 #define GB_POWER_SUPPLY_USB_TYPE                        0x0004
 551 #define GB_POWER_SUPPLY_USB_DCP_TYPE                    0x0005
 552 #define GB_POWER_SUPPLY_USB_CDP_TYPE                    0x0006
 553 #define GB_POWER_SUPPLY_USB_ACA_TYPE                    0x0007
 554
 555 /* Greybus power supply health values */
 556 #define GB_POWER_SUPPLY_HEALTH_UNKNOWN                  0x0000
 557 #define GB_POWER_SUPPLY_HEALTH_GOOD                     0x0001
 558 #define GB_POWER_SUPPLY_HEALTH_OVERHEAT                 0x0002
 559 #define GB_POWER_SUPPLY_HEALTH_DEAD                     0x0003
 560 #define GB_POWER_SUPPLY_HEALTH_OVERVOLTAGE              0x0004
 561 #define GB_POWER_SUPPLY_HEALTH_UNSPEC_FAILURE           0x0005
 562 #define GB_POWER_SUPPLY_HEALTH_COLD                     0x0006
 563 #define GB_POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE    0x0007
 564 #define GB_POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE      0x0008
 565
 566 /* Greybus power supply status values */
 567 #define GB_POWER_SUPPLY_STATUS_UNKNOWN                  0x0000
 568 #define GB_POWER_SUPPLY_STATUS_CHARGING                 0x0001
 569 #define GB_POWER_SUPPLY_STATUS_DISCHARGING              0x0002
 570 #define GB_POWER_SUPPLY_STATUS_NOT_CHARGING             0x0003
 571 #define GB_POWER_SUPPLY_STATUS_FULL                     0x0004
 572
 573 /* Greybus power supply capacity level values */
 574 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN          0x0000
 575 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL         0x0001
 576 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_LOW              0x0002
 577 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_NORMAL           0x0003
 578 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_HIGH             0x0004
 579 #define GB_POWER_SUPPLY_CAPACITY_LEVEL_FULL             0x0005
 580
 581 /* Greybus power supply scope values */
 582 #define GB_POWER_SUPPLY_SCOPE_UNKNOWN                   0x0000
 583 #define GB_POWER_SUPPLY_SCOPE_SYSTEM                    0x0001
 584 #define GB_POWER_SUPPLY_SCOPE_DEVICE                    0x0002
 585
 586 struct gb_power_supply_get_supplies_response {
 587         __u8    supplies_count;
 588 } __packed;
 589
 590 struct gb_power_supply_get_description_request {
 591         __u8    psy_id;
 592 } __packed;
 593
 594 struct gb_power_supply_get_description_response {
 595         __u8    manufacturer[32];
 596         __u8    model[32];
 597         __u8    serial_number[32];
 598         __le16  type;
 599         __u8    properties_count;
 600 } __packed;
 601
 602 struct gb_power_supply_props_desc {
 603         __u8    property;
 604 #define GB_POWER_SUPPLY_PROP_STATUS                             0x00
 605 #define GB_POWER_SUPPLY_PROP_CHARGE_TYPE                        0x01
 606 #define GB_POWER_SUPPLY_PROP_HEALTH                             0x02
 607 #define GB_POWER_SUPPLY_PROP_PRESENT                            0x03
 608 #define GB_POWER_SUPPLY_PROP_ONLINE                             0x04
 609 #define GB_POWER_SUPPLY_PROP_AUTHENTIC                          0x05
 610 #define GB_POWER_SUPPLY_PROP_TECHNOLOGY                         0x06
 611 #define GB_POWER_SUPPLY_PROP_CYCLE_COUNT                        0x07
 612 #define GB_POWER_SUPPLY_PROP_VOLTAGE_MAX                        0x08
 613 #define GB_POWER_SUPPLY_PROP_VOLTAGE_MIN                        0x09
 614 #define GB_POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN                 0x0A
 615 #define GB_POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN                 0x0B
 616 #define GB_POWER_SUPPLY_PROP_VOLTAGE_NOW                        0x0C
 617 #define GB_POWER_SUPPLY_PROP_VOLTAGE_AVG                        0x0D
 618 #define GB_POWER_SUPPLY_PROP_VOLTAGE_OCV                        0x0E
 619 #define GB_POWER_SUPPLY_PROP_VOLTAGE_BOOT                       0x0F
 620 #define GB_POWER_SUPPLY_PROP_CURRENT_MAX                        0x10
 621 #define GB_POWER_SUPPLY_PROP_CURRENT_NOW                        0x11
 622 #define GB_POWER_SUPPLY_PROP_CURRENT_AVG                        0x12
 623 #define GB_POWER_SUPPLY_PROP_CURRENT_BOOT                       0x13
 624 #define GB_POWER_SUPPLY_PROP_POWER_NOW                          0x14
 625 #define GB_POWER_SUPPLY_PROP_POWER_AVG                          0x15
 626 #define GB_POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN                 0x16
 627 #define GB_POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN                0x17
 628 #define GB_POWER_SUPPLY_PROP_CHARGE_FULL                        0x18
 629 #define GB_POWER_SUPPLY_PROP_CHARGE_EMPTY                       0x19
 630 #define GB_POWER_SUPPLY_PROP_CHARGE_NOW                         0x1A
 631 #define GB_POWER_SUPPLY_PROP_CHARGE_AVG                         0x1B
 632 #define GB_POWER_SUPPLY_PROP_CHARGE_COUNTER                     0x1C
 633 #define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT            0x1D
 634 #define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX        0x1E
 635 #define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE            0x1F
 636 #define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX        0x20
 637 #define GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT               0x21
 638 #define GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX           0x22
 639 #define GB_POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT                0x23
 640 #define GB_POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN                 0x24
 641 #define GB_POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN                0x25
 642 #define GB_POWER_SUPPLY_PROP_ENERGY_FULL                        0x26
 643 #define GB_POWER_SUPPLY_PROP_ENERGY_EMPTY                       0x27
 644 #define GB_POWER_SUPPLY_PROP_ENERGY_NOW                         0x28
 645 #define GB_POWER_SUPPLY_PROP_ENERGY_AVG                         0x29
 646 #define GB_POWER_SUPPLY_PROP_CAPACITY                           0x2A
 647 #define GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN                 0x2B
 648 #define GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX                 0x2C
 649 #define GB_POWER_SUPPLY_PROP_CAPACITY_LEVEL                     0x2D
 650 #define GB_POWER_SUPPLY_PROP_TEMP                               0x2E
 651 #define GB_POWER_SUPPLY_PROP_TEMP_MAX                           0x2F
 652 #define GB_POWER_SUPPLY_PROP_TEMP_MIN                           0x30
 653 #define GB_POWER_SUPPLY_PROP_TEMP_ALERT_MIN                     0x31
 654 #define GB_POWER_SUPPLY_PROP_TEMP_ALERT_MAX                     0x32
 655 #define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT                       0x33
 656 #define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN             0x34
 657 #define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX             0x35
 658 #define GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW                  0x36
 659 #define GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG                  0x37
 660 #define GB_POWER_SUPPLY_PROP_TIME_TO_FULL_NOW                   0x38
 661 #define GB_POWER_SUPPLY_PROP_TIME_TO_FULL_AVG                   0x39
 662 #define GB_POWER_SUPPLY_PROP_TYPE                               0x3A
 663 #define GB_POWER_SUPPLY_PROP_SCOPE                              0x3B
 664 #define GB_POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT                0x3C
 665 #define GB_POWER_SUPPLY_PROP_CALIBRATE                          0x3D
 666         __u8    is_writeable;
 667 } __packed;
 668
 669 struct gb_power_supply_get_property_descriptors_request {
 670         __u8    psy_id;
 671 } __packed;
 672
 673 struct gb_power_supply_get_property_descriptors_response {
 674         __u8    properties_count;
 675         struct gb_power_supply_props_desc props[];
 676 } __packed;
 677
 678 struct gb_power_supply_get_property_request {
 679         __u8    psy_id;
 680         __u8    property;
 681 } __packed;
 682
 683 struct gb_power_supply_get_property_response {
 684         __le32  prop_val;
 685 };
 686
 687 struct gb_power_supply_set_property_request {
 688         __u8    psy_id;
 689         __u8    property;
 690         __le32  prop_val;
 691 } __packed;
 692
 693 struct gb_power_supply_event_request {
 694         __u8    psy_id;
 695         __u8    event;
 696 #define GB_POWER_SUPPLY_UPDATE          0x01
 697 } __packed;
 698
 699
 700 /* HID */
 701
 702 /* Greybus HID operation types */
 703 #define GB_HID_TYPE_GET_DESC            0x02
 704 #define GB_HID_TYPE_GET_REPORT_DESC     0x03
 705 #define GB_HID_TYPE_PWR_ON              0x04
 706 #define GB_HID_TYPE_PWR_OFF             0x05
 707 #define GB_HID_TYPE_GET_REPORT          0x06
 708 #define GB_HID_TYPE_SET_REPORT          0x07
 709 #define GB_HID_TYPE_IRQ_EVENT           0x08
 710
 711 /* Report type */
 712 #define GB_HID_INPUT_REPORT             0
 713 #define GB_HID_OUTPUT_REPORT            1
 714 #define GB_HID_FEATURE_REPORT           2
 715
 716 /* Different request/response structures */
 717 /* HID get descriptor response */
 718 struct gb_hid_desc_response {
 719         __u8                            bLength;
 720         __le16                          wReportDescLength;
 721         __le16                          bcdHID;
 722         __le16                          wProductID;
 723         __le16                          wVendorID;
 724         __u8                            bCountryCode;
 725 } __packed;
 726
 727 /* HID get report request/response */
 728 struct gb_hid_get_report_request {
 729         __u8                            report_type;
 730         __u8                            report_id;
 731 } __packed;
 732
 733 /* HID set report request */
 734 struct gb_hid_set_report_request {
 735         __u8                            report_type;
 736         __u8                            report_id;
 737         __u8                            report[0];
 738 } __packed;
 739
 740 /* HID input report request, via interrupt pipe */
 741 struct gb_hid_input_report_request {
 742         __u8                            report[0];
 743 } __packed;
 744
 745
 746 /* I2C */
 747
 748 /* Greybus i2c request types */
 749 #define GB_I2C_TYPE_FUNCTIONALITY       0x02
 750 #define GB_I2C_TYPE_TRANSFER            0x05
 751
 752 /* functionality request has no payload */
 753 struct gb_i2c_functionality_response {
 754         __le32  functionality;
 755 } __packed;
 756
 757 /*
 758  * Outgoing data immediately follows the op count and ops array.
 759  * The data for each write (master -> slave) op in the array is sent
 760  * in order, with no (e.g. pad) bytes separating them.
 761  *
 762  * Short reads cause the entire transfer request to fail So response
 763  * payload consists only of bytes read, and the number of bytes is
 764  * exactly what was specified in the corresponding op.  Like
 765  * outgoing data, the incoming data is in order and contiguous.
 766  */
 767 struct gb_i2c_transfer_op {
 768         __le16  addr;
 769         __le16  flags;
 770         __le16  size;
 771 } __packed;
 772
 773 struct gb_i2c_transfer_request {
 774         __le16                          op_count;
 775         struct gb_i2c_transfer_op       ops[0];         /* op_count of these */
 776 } __packed;
 777 struct gb_i2c_transfer_response {
 778         __u8                            data[0];        /* inbound data */
 779 } __packed;
 780
 781
 782 /* GPIO */
 783
 784 /* Greybus GPIO request types */
 785 #define GB_GPIO_TYPE_LINE_COUNT         0x02
 786 #define GB_GPIO_TYPE_ACTIVATE           0x03
 787 #define GB_GPIO_TYPE_DEACTIVATE         0x04
 788 #define GB_GPIO_TYPE_GET_DIRECTION      0x05
 789 #define GB_GPIO_TYPE_DIRECTION_IN       0x06
 790 #define GB_GPIO_TYPE_DIRECTION_OUT      0x07
 791 #define GB_GPIO_TYPE_GET_VALUE          0x08
 792 #define GB_GPIO_TYPE_SET_VALUE          0x09
 793 #define GB_GPIO_TYPE_SET_DEBOUNCE       0x0a
 794 #define GB_GPIO_TYPE_IRQ_TYPE           0x0b
 795 #define GB_GPIO_TYPE_IRQ_MASK           0x0c
 796 #define GB_GPIO_TYPE_IRQ_UNMASK         0x0d
 797 #define GB_GPIO_TYPE_IRQ_EVENT          0x0e
 798
 799 #define GB_GPIO_IRQ_TYPE_NONE           0x00
 800 #define GB_GPIO_IRQ_TYPE_EDGE_RISING    0x01
 801 #define GB_GPIO_IRQ_TYPE_EDGE_FALLING   0x02
 802 #define GB_GPIO_IRQ_TYPE_EDGE_BOTH      0x03
 803 #define GB_GPIO_IRQ_TYPE_LEVEL_HIGH     0x04
 804 #define GB_GPIO_IRQ_TYPE_LEVEL_LOW      0x08
 805
 806 /* line count request has no payload */
 807 struct gb_gpio_line_count_response {
 808         __u8    count;
 809 } __packed;
 810
 811 struct gb_gpio_activate_request {
 812         __u8    which;
 813 } __packed;
 814 /* activate response has no payload */
 815
 816 struct gb_gpio_deactivate_request {
 817         __u8    which;
 818 } __packed;
 819 /* deactivate response has no payload */
 820
 821 struct gb_gpio_get_direction_request {
 822         __u8    which;
 823 } __packed;
 824 struct gb_gpio_get_direction_response {
 825         __u8    direction;
 826 } __packed;
 827
 828 struct gb_gpio_direction_in_request {
 829         __u8    which;
 830 } __packed;
 831 /* direction in response has no payload */
 832
 833 struct gb_gpio_direction_out_request {
 834         __u8    which;
 835         __u8    value;
 836 } __packed;
 837 /* direction out response has no payload */
 838
 839 struct gb_gpio_get_value_request {
 840         __u8    which;
 841 } __packed;
 842 struct gb_gpio_get_value_response {
 843         __u8    value;
 844 } __packed;
 845
 846 struct gb_gpio_set_value_request {
 847         __u8    which;
 848         __u8    value;
 849 } __packed;
 850 /* set value response has no payload */
 851
 852 struct gb_gpio_set_debounce_request {
 853         __u8    which;
 854         __le16  usec;
 855 } __packed;
 856 /* debounce response has no payload */
 857
 858 struct gb_gpio_irq_type_request {
 859         __u8    which;
 860         __u8    type;
 861 } __packed;
 862 /* irq type response has no payload */
 863
 864 struct gb_gpio_irq_mask_request {
 865         __u8    which;
 866 } __packed;
 867 /* irq mask response has no payload */
 868
 869 struct gb_gpio_irq_unmask_request {
 870         __u8    which;
 871 } __packed;
 872 /* irq unmask response has no payload */
 873
 874 /* irq event requests originate on another module and are handled on the AP */
 875 struct gb_gpio_irq_event_request {
 876         __u8    which;
 877 } __packed;
 878 /* irq event has no response */
 879
 880
 881 /* PWM */
 882
 883 /* Greybus PWM operation types */
 884 #define GB_PWM_TYPE_PWM_COUNT           0x02
 885 #define GB_PWM_TYPE_ACTIVATE            0x03
 886 #define GB_PWM_TYPE_DEACTIVATE          0x04
 887 #define GB_PWM_TYPE_CONFIG              0x05
 888 #define GB_PWM_TYPE_POLARITY            0x06
 889 #define GB_PWM_TYPE_ENABLE              0x07
 890 #define GB_PWM_TYPE_DISABLE             0x08
 891
 892 /* pwm count request has no payload */
 893 struct gb_pwm_count_response {
 894         __u8    count;
 895 } __packed;
 896
 897 struct gb_pwm_activate_request {
 898         __u8    which;
 899 } __packed;
 900
 901 struct gb_pwm_deactivate_request {
 902         __u8    which;
 903 } __packed;
 904
 905 struct gb_pwm_config_request {
 906         __u8    which;
 907         __le32  duty;
 908         __le32  period;
 909 } __packed;
 910
 911 struct gb_pwm_polarity_request {
 912         __u8    which;
 913         __u8    polarity;
 914 } __packed;
 915
 916 struct gb_pwm_enable_request {
 917         __u8    which;
 918 } __packed;
 919
 920 struct gb_pwm_disable_request {
 921         __u8    which;
 922 } __packed;
 923
 924 /* SPI */
 925
 926 /* Should match up with modes in linux/spi/spi.h */
 927 #define GB_SPI_MODE_CPHA                0x01            /* clock phase */
 928 #define GB_SPI_MODE_CPOL                0x02            /* clock polarity */
 929 #define GB_SPI_MODE_MODE_0              (0|0)           /* (original MicroWire) */
 930 #define GB_SPI_MODE_MODE_1              (0|GB_SPI_MODE_CPHA)
 931 #define GB_SPI_MODE_MODE_2              (GB_SPI_MODE_CPOL|0)
 932 #define GB_SPI_MODE_MODE_3              (GB_SPI_MODE_CPOL|GB_SPI_MODE_CPHA)
 933 #define GB_SPI_MODE_CS_HIGH             0x04            /* chipselect active high? */
 934 #define GB_SPI_MODE_LSB_FIRST           0x08            /* per-word bits-on-wire */
 935 #define GB_SPI_MODE_3WIRE               0x10            /* SI/SO signals shared */
 936 #define GB_SPI_MODE_LOOP                0x20            /* loopback mode */
 937 #define GB_SPI_MODE_NO_CS               0x40            /* 1 dev/bus, no chipselect */
 938 #define GB_SPI_MODE_READY               0x80            /* slave pulls low to pause */
 939
 940 /* Should match up with flags in linux/spi/spi.h */
 941 #define GB_SPI_FLAG_HALF_DUPLEX         BIT(0)          /* can't do full duplex */
 942 #define GB_SPI_FLAG_NO_RX               BIT(1)          /* can't do buffer read */
 943 #define GB_SPI_FLAG_NO_TX               BIT(2)          /* can't do buffer write */
 944
 945 /* Greybus spi operation types */
 946 #define GB_SPI_TYPE_MASTER_CONFIG       0x02
 947 #define GB_SPI_TYPE_DEVICE_CONFIG       0x03
 948 #define GB_SPI_TYPE_TRANSFER            0x04
 949
 950 /* mode request has no payload */
 951 struct gb_spi_master_config_response {
 952         __le32  bits_per_word_mask;
 953         __le32  min_speed_hz;
 954         __le32  max_speed_hz;
 955         __le16  mode;
 956         __le16  flags;
 957         __u8    num_chipselect;
 958 } __packed;
 959
 960 struct gb_spi_device_config_request {
 961         __u8    chip_select;
 962 } __packed;
 963
 964 struct gb_spi_device_config_response {
 965         __le16  mode;
 966         __u8    bits_per_word;
 967         __le32  max_speed_hz;
 968         __u8    device_type;
 969 #define GB_SPI_SPI_DEV          0x00
 970 #define GB_SPI_SPI_NOR          0x01
 971 #define GB_SPI_SPI_MODALIAS     0x02
 972         __u8    name[32];
 973 } __packed;
 974
 975 /**
 976  * struct gb_spi_transfer - a read/write buffer pair
 977  * @speed_hz: Select a speed other than the device default for this transfer. If
 978  *      0 the default (from @spi_device) is used.
 979  * @len: size of rx and tx buffers (in bytes)
 980  * @delay_usecs: microseconds to delay after this transfer before (optionally)
 981  *      changing the chipselect status, then starting the next transfer or
 982  *      completing this spi_message.
 983  * @cs_change: affects chipselect after this transfer completes
 984  * @bits_per_word: select a bits_per_word other than the device default for this
 985  *      transfer. If 0 the default (from @spi_device) is used.
 986  */
 987 struct gb_spi_transfer {
 988         __le32          speed_hz;
 989         __le32          len;
 990         __le16          delay_usecs;
 991         __u8            cs_change;
 992         __u8            bits_per_word;
 993         __u8            xfer_flags;
 994 #define GB_SPI_XFER_READ        0x01
 995 #define GB_SPI_XFER_WRITE       0x02
 996 #define GB_SPI_XFER_INPROGRESS  0x04
 997 } __packed;
 998
 999 struct gb_spi_transfer_request {
1000         __u8                    chip_select;    /* of the spi device */
1001         __u8                    mode;           /* of the spi device */
1002         __le16                  count;
1003         struct gb_spi_transfer  transfers[0];   /* count of these */
1004 } __packed;
1005
1006 struct gb_spi_transfer_response {
1007         __u8                    data[0];        /* inbound data */
1008 } __packed;
1009
1010 /* Version of the Greybus SVC protocol we support */
1011 #define GB_SVC_VERSION_MAJOR            0x00
1012 #define GB_SVC_VERSION_MINOR            0x01
1013
1014 /* Greybus SVC request types */
1015 #define GB_SVC_TYPE_PROTOCOL_VERSION            0x01
1016 #define GB_SVC_TYPE_SVC_HELLO                   0x02
1017 #define GB_SVC_TYPE_INTF_DEVICE_ID              0x03
1018 #define GB_SVC_TYPE_INTF_RESET                  0x06
1019 #define GB_SVC_TYPE_CONN_CREATE                 0x07
1020 #define GB_SVC_TYPE_CONN_DESTROY                0x08
1021 #define GB_SVC_TYPE_DME_PEER_GET                0x09
1022 #define GB_SVC_TYPE_DME_PEER_SET                0x0a
1023 #define GB_SVC_TYPE_ROUTE_CREATE                0x0b
1024 #define GB_SVC_TYPE_ROUTE_DESTROY               0x0c
1025 #define GB_SVC_TYPE_TIMESYNC_ENABLE             0x0d
1026 #define GB_SVC_TYPE_TIMESYNC_DISABLE            0x0e
1027 #define GB_SVC_TYPE_TIMESYNC_AUTHORITATIVE      0x0f
1028 #define GB_SVC_TYPE_INTF_SET_PWRM               0x10
1029 #define GB_SVC_TYPE_INTF_EJECT                  0x11
1030 #define GB_SVC_TYPE_KEY_EVENT                   0x12
1031 #define GB_SVC_TYPE_PING                        0x13
1032 #define GB_SVC_TYPE_PWRMON_RAIL_COUNT_GET       0x14
1033 #define GB_SVC_TYPE_PWRMON_RAIL_NAMES_GET       0x15
1034 #define GB_SVC_TYPE_PWRMON_SAMPLE_GET           0x16
1035 #define GB_SVC_TYPE_PWRMON_INTF_SAMPLE_GET      0x17
1036 #define GB_SVC_TYPE_TIMESYNC_WAKE_PINS_ACQUIRE  0x18
1037 #define GB_SVC_TYPE_TIMESYNC_WAKE_PINS_RELEASE  0x19
1038 #define GB_SVC_TYPE_TIMESYNC_PING               0x1a
1039 #define GB_SVC_TYPE_CONN_QUIESCING              0x1e
1040 #define GB_SVC_TYPE_MODULE_INSERTED             0x1f
1041 #define GB_SVC_TYPE_MODULE_REMOVED              0x20
1042 #define GB_SVC_TYPE_INTF_VSYS_ENABLE            0x21
1043 #define GB_SVC_TYPE_INTF_VSYS_DISABLE           0x22
1044 #define GB_SVC_TYPE_INTF_REFCLK_ENABLE          0x23
1045 #define GB_SVC_TYPE_INTF_REFCLK_DISABLE         0x24
1046 #define GB_SVC_TYPE_INTF_UNIPRO_ENABLE          0x25
1047 #define GB_SVC_TYPE_INTF_UNIPRO_DISABLE         0x26
1048 #define GB_SVC_TYPE_INTF_ACTIVATE               0x27
1049 #define GB_SVC_TYPE_INTF_RESUME                 0x28
1050 #define GB_SVC_TYPE_INTF_MAILBOX_EVENT          0x29
1051
1052 /* Greybus SVC protocol status values */
1053 #define GB_SVC_OP_SUCCESS                       0x00
1054 #define GB_SVC_OP_UNKNOWN_ERROR                 0x01
1055 #define GB_SVC_INTF_NOT_DETECTED                0x02
1056 #define GB_SVC_INTF_NO_UPRO_LINK                0x03
1057 #define GB_SVC_INTF_UPRO_NOT_DOWN               0x04
1058 #define GB_SVC_INTF_UPRO_NOT_HIBERNATED         0x05
1059 #define GB_SVC_INTF_NO_V_SYS                    0x06
1060 #define GB_SVC_INTF_V_CHG                       0x07
1061 #define GB_SVC_INTF_WAKE_BUSY                   0x08
1062 #define GB_SVC_INTF_NO_REFCLK                   0x09
1063 #define GB_SVC_INTF_RELEASING                   0x0a
1064 #define GB_SVC_INTF_NO_ORDER                    0x0b
1065 #define GB_SVC_INTF_MBOX_SET                    0x0c
1066 #define GB_SVC_INTF_BAD_MBOX                    0x0d
1067 #define GB_SVC_INTF_OP_TIMEOUT                  0x0e
1068 #define GB_SVC_PWRMON_OP_NOT_PRESENT            0x0f
1069
1070 struct gb_svc_version_request {
1071         __u8    major;
1072         __u8    minor;
1073 } __packed;
1074
1075 struct gb_svc_version_response {
1076         __u8    major;
1077         __u8    minor;
1078 } __packed;
1079
1080 /* SVC protocol hello request */
1081 struct gb_svc_hello_request {
1082         __le16                  endo_id;
1083         __u8                    interface_id;
1084 } __packed;
1085 /* hello response has no payload */
1086
1087 struct gb_svc_intf_device_id_request {
1088         __u8    intf_id;
1089         __u8    device_id;
1090 } __packed;
1091 /* device id response has no payload */
1092
1093 struct gb_svc_intf_reset_request {
1094         __u8    intf_id;
1095 } __packed;
1096 /* interface reset response has no payload */
1097
1098 struct gb_svc_intf_eject_request {
1099         __u8    intf_id;
1100 } __packed;
1101 /* interface eject response has no payload */
1102
1103 struct gb_svc_conn_create_request {
1104         __u8    intf1_id;
1105         __le16  cport1_id;
1106         __u8    intf2_id;
1107         __le16  cport2_id;
1108         __u8    tc;
1109         __u8    flags;
1110 } __packed;
1111 /* connection create response has no payload */
1112
1113 struct gb_svc_conn_destroy_request {
1114         __u8    intf1_id;
1115         __le16  cport1_id;
1116         __u8    intf2_id;
1117         __le16  cport2_id;
1118 } __packed;
1119 /* connection destroy response has no payload */
1120
1121 struct gb_svc_dme_peer_get_request {
1122         __u8    intf_id;
1123         __le16  attr;
1124         __le16  selector;
1125 } __packed;
1126
1127 struct gb_svc_dme_peer_get_response {
1128         __le16  result_code;
1129         __le32  attr_value;
1130 } __packed;
1131
1132 struct gb_svc_dme_peer_set_request {
1133         __u8    intf_id;
1134         __le16  attr;
1135         __le16  selector;
1136         __le32  value;
1137 } __packed;
1138
1139 struct gb_svc_dme_peer_set_response {
1140         __le16  result_code;
1141 } __packed;
1142
1143 /* Greybus init-status values, currently retrieved using DME peer gets. */
1144 #define GB_INIT_SPI_BOOT_STARTED                        0x02
1145 #define GB_INIT_TRUSTED_SPI_BOOT_FINISHED               0x03
1146 #define GB_INIT_UNTRUSTED_SPI_BOOT_FINISHED             0x04
1147 #define GB_INIT_BOOTROM_UNIPRO_BOOT_STARTED             0x06
1148 #define GB_INIT_BOOTROM_FALLBACK_UNIPRO_BOOT_STARTED    0x09
1149
1150 struct gb_svc_route_create_request {
1151         __u8    intf1_id;
1152         __u8    dev1_id;
1153         __u8    intf2_id;
1154         __u8    dev2_id;
1155 } __packed;
1156 /* route create response has no payload */
1157
1158 struct gb_svc_route_destroy_request {
1159         __u8    intf1_id;
1160         __u8    intf2_id;
1161 } __packed;
1162 /* route destroy response has no payload */
1163
1164 /* used for svc_intf_vsys_{enable,disable} */
1165 struct gb_svc_intf_vsys_request {
1166         __u8    intf_id;
1167 } __packed;
1168
1169 struct gb_svc_intf_vsys_response {
1170         __u8    result_code;
1171 #define GB_SVC_INTF_VSYS_OK                             0x00
1172         /* 0x01 is reserved */
1173 #define GB_SVC_INTF_VSYS_FAIL                           0x02
1174 } __packed;
1175
1176 /* used for svc_intf_refclk_{enable,disable} */
1177 struct gb_svc_intf_refclk_request {
1178         __u8    intf_id;
1179 } __packed;
1180
1181 struct gb_svc_intf_refclk_response {
1182         __u8    result_code;
1183 #define GB_SVC_INTF_REFCLK_OK                           0x00
1184         /* 0x01 is reserved */
1185 #define GB_SVC_INTF_REFCLK_FAIL                         0x02
1186 } __packed;
1187
1188 /* used for svc_intf_unipro_{enable,disable} */
1189 struct gb_svc_intf_unipro_request {
1190         __u8    intf_id;
1191 } __packed;
1192
1193 struct gb_svc_intf_unipro_response {
1194         __u8    result_code;
1195 #define GB_SVC_INTF_UNIPRO_OK                           0x00
1196         /* 0x01 is reserved */
1197 #define GB_SVC_INTF_UNIPRO_FAIL                         0x02
1198 #define GB_SVC_INTF_UNIPRO_NOT_OFF                      0x03
1199 } __packed;
1200
1201 struct gb_svc_timesync_enable_request {
1202         __u8    count;
1203         __le64  frame_time;
1204         __le32  strobe_delay;
1205         __le32  refclk;
1206 } __packed;
1207 /* timesync enable response has no payload */
1208
1209 /* timesync authoritative request has no payload */
1210 struct gb_svc_timesync_authoritative_response {
1211         __le64  frame_time[GB_TIMESYNC_MAX_STROBES];
1212 };
1213
1214 struct gb_svc_timesync_wake_pins_acquire_request {
1215         __le32  strobe_mask;
1216 };
1217
1218 /* timesync wake pins acquire response has no payload */
1219
1220 /* timesync wake pins release request has no payload */
1221 /* timesync wake pins release response has no payload */
1222
1223 /* timesync svc ping request has no payload */
1224 struct gb_svc_timesync_ping_response {
1225         __le64  frame_time;
1226 } __packed;
1227
1228 #define GB_SVC_UNIPRO_FAST_MODE                 0x01
1229 #define GB_SVC_UNIPRO_SLOW_MODE                 0x02
1230 #define GB_SVC_UNIPRO_FAST_AUTO_MODE            0x04
1231 #define GB_SVC_UNIPRO_SLOW_AUTO_MODE            0x05
1232 #define GB_SVC_UNIPRO_MODE_UNCHANGED            0x07
1233 #define GB_SVC_UNIPRO_HIBERNATE_MODE            0x11
1234 #define GB_SVC_UNIPRO_OFF_MODE                  0x12
1235
1236 #define GB_SVC_SMALL_AMPLITUDE          0x01
1237 #define GB_SVC_LARGE_AMPLITUDE          0x02
1238
1239 #define GB_SVC_NO_DE_EMPHASIS           0x00
1240 #define GB_SVC_SMALL_DE_EMPHASIS        0x01
1241 #define GB_SVC_LARGE_DE_EMPHASIS        0x02
1242
1243 #define GB_SVC_PWRM_RXTERMINATION               0x01
1244 #define GB_SVC_PWRM_TXTERMINATION               0x02
1245 #define GB_SVC_PWRM_LINE_RESET                  0x04
1246 #define GB_SVC_PWRM_SCRAMBLING                  0x20
1247
1248 #define GB_SVC_PWRM_QUIRK_HSSER                 0x00000001
1249
1250 #define GB_SVC_UNIPRO_HS_SERIES_A               0x01
1251 #define GB_SVC_UNIPRO_HS_SERIES_B               0x02
1252
1253 #define GB_SVC_SETPWRM_PWR_OK           0x00
1254 #define GB_SVC_SETPWRM_PWR_LOCAL        0x01
1255 #define GB_SVC_SETPWRM_PWR_REMOTE       0x02
1256 #define GB_SVC_SETPWRM_PWR_BUSY         0x03
1257 #define GB_SVC_SETPWRM_PWR_ERROR_CAP    0x04
1258 #define GB_SVC_SETPWRM_PWR_FATAL_ERROR  0x05
1259
1260 struct gb_svc_l2_timer_cfg {
1261         __le16 tsb_fc0_protection_timeout;
1262         __le16 tsb_tc0_replay_timeout;
1263         __le16 tsb_afc0_req_timeout;
1264         __le16 tsb_fc1_protection_timeout;
1265         __le16 tsb_tc1_replay_timeout;
1266         __le16 tsb_afc1_req_timeout;
1267         __le16 reserved_for_tc2[3];
1268         __le16 reserved_for_tc3[3];
1269 } __packed;
1270
1271 struct gb_svc_intf_set_pwrm_request {
1272         __u8    intf_id;
1273         __u8    hs_series;
1274         __u8    tx_mode;
1275         __u8    tx_gear;
1276         __u8    tx_nlanes;
1277         __u8    tx_amplitude;
1278         __u8    tx_hs_equalizer;
1279         __u8    rx_mode;
1280         __u8    rx_gear;
1281         __u8    rx_nlanes;
1282         __u8    flags;
1283         __le32  quirks;
1284         struct gb_svc_l2_timer_cfg local_l2timerdata, remote_l2timerdata;
1285 } __packed;
1286
1287 struct gb_svc_intf_set_pwrm_response {
1288         __u8    result_code;
1289 } __packed;
1290
1291 struct gb_svc_key_event_request {
1292         __le16  key_code;
1293 #define GB_KEYCODE_ARA         0x00
1294
1295         __u8    key_event;
1296 #define GB_SVC_KEY_RELEASED    0x00
1297 #define GB_SVC_KEY_PRESSED     0x01
1298 } __packed;
1299
1300 #define GB_SVC_PWRMON_MAX_RAIL_COUNT            254
1301
1302 struct gb_svc_pwrmon_rail_count_get_response {
1303         __u8    rail_count;
1304 } __packed;
1305
1306 #define GB_SVC_PWRMON_RAIL_NAME_BUFSIZE         32
1307
1308 struct gb_svc_pwrmon_rail_names_get_response {
1309         __u8    status;
1310         __u8    name[0][GB_SVC_PWRMON_RAIL_NAME_BUFSIZE];
1311 } __packed;
1312
1313 #define GB_SVC_PWRMON_TYPE_CURR                 0x01
1314 #define GB_SVC_PWRMON_TYPE_VOL                  0x02
1315 #define GB_SVC_PWRMON_TYPE_PWR                  0x03
1316
1317 #define GB_SVC_PWRMON_GET_SAMPLE_OK             0x00
1318 #define GB_SVC_PWRMON_GET_SAMPLE_INVAL          0x01
1319 #define GB_SVC_PWRMON_GET_SAMPLE_NOSUPP         0x02
1320 #define GB_SVC_PWRMON_GET_SAMPLE_HWERR          0x03
1321
1322 struct gb_svc_pwrmon_sample_get_request {
1323         __u8    rail_id;
1324         __u8    measurement_type;
1325 } __packed;
1326
1327 struct gb_svc_pwrmon_sample_get_response {
1328         __u8    result;
1329         __le32  measurement;
1330 } __packed;
1331
1332 struct gb_svc_pwrmon_intf_sample_get_request {
1333         __u8    intf_id;
1334         __u8    measurement_type;
1335 } __packed;
1336
1337 struct gb_svc_pwrmon_intf_sample_get_response {
1338         __u8    result;
1339         __le32  measurement;
1340 } __packed;
1341
1342 #define GB_SVC_MODULE_INSERTED_FLAG_NO_PRIMARY  0x0001
1343
1344 struct gb_svc_module_inserted_request {
1345         __u8    primary_intf_id;
1346         __u8    intf_count;
1347         __le16  flags;
1348 } __packed;
1349 /* module_inserted response has no payload */
1350
1351 struct gb_svc_module_removed_request {
1352         __u8    primary_intf_id;
1353 } __packed;
1354 /* module_removed response has no payload */
1355
1356 struct gb_svc_intf_activate_request {
1357         __u8    intf_id;
1358 } __packed;
1359
1360 #define GB_SVC_INTF_TYPE_UNKNOWN                0x00
1361 #define GB_SVC_INTF_TYPE_DUMMY                  0x01
1362 #define GB_SVC_INTF_TYPE_UNIPRO                 0x02
1363 #define GB_SVC_INTF_TYPE_GREYBUS                0x03
1364
1365 struct gb_svc_intf_activate_response {
1366         __u8    status;
1367         __u8    intf_type;
1368 } __packed;
1369
1370 struct gb_svc_intf_resume_request {
1371         __u8    intf_id;
1372 } __packed;
1373
1374 struct gb_svc_intf_resume_response {
1375         __u8    status;
1376 } __packed;
1377
1378 #define GB_SVC_INTF_MAILBOX_NONE                0x00
1379 #define GB_SVC_INTF_MAILBOX_AP                  0x01
1380 #define GB_SVC_INTF_MAILBOX_GREYBUS             0x02
1381
1382 struct gb_svc_intf_mailbox_event_request {
1383         __u8    intf_id;
1384         __le16  result_code;
1385         __le32  mailbox;
1386 } __packed;
1387 /* intf_mailbox_event response has no payload */
1388
1389 struct gb_svc_conn_quiescing_request {
1390         __u8    intf1_id;
1391         __le16  cport1_id;
1392         __u8    intf2_id;
1393         __le16  cport2_id;
1394 } __packed;
1395
1396 struct gb_svc_conn_quiescing_response {
1397         __u8    status;
1398 } __packed;
1399
1400
1401 /* RAW */
1402
1403 /* Greybus raw request types */
1404 #define GB_RAW_TYPE_SEND                        0x02
1405
1406 struct gb_raw_send_request {
1407         __le32  len;
1408         __u8    data[0];
1409 } __packed;
1410
1411
1412 /* UART */
1413
1414 /* Greybus UART operation types */
1415 #define GB_UART_TYPE_SEND_DATA                  0x02
1416 #define GB_UART_TYPE_RECEIVE_DATA               0x03    /* Unsolicited data */
1417 #define GB_UART_TYPE_SET_LINE_CODING            0x04
1418 #define GB_UART_TYPE_SET_CONTROL_LINE_STATE     0x05
1419 #define GB_UART_TYPE_SEND_BREAK                 0x06
1420 #define GB_UART_TYPE_SERIAL_STATE               0x07    /* Unsolicited data */
1421 #define GB_UART_TYPE_RECEIVE_CREDITS            0x08
1422 #define GB_UART_TYPE_FLUSH_FIFOS                0x09
1423
1424 /* Represents data from AP -> Module */
1425 struct gb_uart_send_data_request {
1426         __le16  size;
1427         __u8    data[0];
1428 } __packed;
1429
1430 /* recv-data-request flags */
1431 #define GB_UART_RECV_FLAG_FRAMING               0x01    /* Framing error */
1432 #define GB_UART_RECV_FLAG_PARITY                0x02    /* Parity error */
1433 #define GB_UART_RECV_FLAG_OVERRUN               0x04    /* Overrun error */
1434 #define GB_UART_RECV_FLAG_BREAK                 0x08    /* Break */
1435
1436 /* Represents data from Module -> AP */
1437 struct gb_uart_recv_data_request {
1438         __le16  size;
1439         __u8    flags;
1440         __u8    data[0];
1441 } __packed;
1442
1443 struct gb_uart_receive_credits_request {
1444         __le16  count;
1445 } __packed;
1446
1447 struct gb_uart_set_line_coding_request {
1448         __le32  rate;
1449         __u8    format;
1450 #define GB_SERIAL_1_STOP_BITS                   0
1451 #define GB_SERIAL_1_5_STOP_BITS                 1
1452 #define GB_SERIAL_2_STOP_BITS                   2
1453
1454         __u8    parity;
1455 #define GB_SERIAL_NO_PARITY                     0
1456 #define GB_SERIAL_ODD_PARITY                    1
1457 #define GB_SERIAL_EVEN_PARITY                   2
1458 #define GB_SERIAL_MARK_PARITY                   3
1459 #define GB_SERIAL_SPACE_PARITY                  4
1460
1461         __u8    data_bits;
1462
1463         __u8    flow_control;
1464 #define GB_SERIAL_AUTO_RTSCTS_EN                0x1
1465 } __packed;
1466
1467 /* output control lines */
1468 #define GB_UART_CTRL_DTR                        0x01
1469 #define GB_UART_CTRL_RTS                        0x02
1470
1471 struct gb_uart_set_control_line_state_request {
1472         __u8    control;
1473 } __packed;
1474
1475 struct gb_uart_set_break_request {
1476         __u8    state;
1477 } __packed;
1478
1479 /* input control lines and line errors */
1480 #define GB_UART_CTRL_DCD                        0x01
1481 #define GB_UART_CTRL_DSR                        0x02
1482 #define GB_UART_CTRL_RI                         0x04
1483
1484 struct gb_uart_serial_state_request {
1485         __u8    control;
1486 } __packed;
1487
1488 struct gb_uart_serial_flush_request {
1489         __u8    flags;
1490 #define GB_SERIAL_FLAG_FLUSH_TRANSMITTER        0x01
1491 #define GB_SERIAL_FLAG_FLUSH_RECEIVER           0x02
1492 } __packed;
1493
1494 /* Loopback */
1495
1496 /* Greybus loopback request types */
1497 #define GB_LOOPBACK_TYPE_PING                   0x02
1498 #define GB_LOOPBACK_TYPE_TRANSFER               0x03
1499 #define GB_LOOPBACK_TYPE_SINK                   0x04
1500
1501 /*
1502  * Loopback request/response header format should be identical
1503  * to simplify bandwidth and data movement analysis.
1504  */
1505 struct gb_loopback_transfer_request {
1506         __le32  len;
1507         __le32  reserved0;
1508         __le32  reserved1;
1509         __u8    data[0];
1510 } __packed;
1511
1512 struct gb_loopback_transfer_response {
1513         __le32  len;
1514         __le32  reserved0;
1515         __le32  reserved1;
1516         __u8    data[0];
1517 } __packed;
1518
1519 /* SDIO */
1520 /* Greybus SDIO operation types */
1521 #define GB_SDIO_TYPE_GET_CAPABILITIES           0x02
1522 #define GB_SDIO_TYPE_SET_IOS                    0x03
1523 #define GB_SDIO_TYPE_COMMAND                    0x04
1524 #define GB_SDIO_TYPE_TRANSFER                   0x05
1525 #define GB_SDIO_TYPE_EVENT                      0x06
1526
1527 /* get caps response: request has no payload */
1528 struct gb_sdio_get_caps_response {
1529         __le32  caps;
1530 #define GB_SDIO_CAP_NONREMOVABLE        0x00000001
1531 #define GB_SDIO_CAP_4_BIT_DATA          0x00000002
1532 #define GB_SDIO_CAP_8_BIT_DATA          0x00000004
1533 #define GB_SDIO_CAP_MMC_HS              0x00000008
1534 #define GB_SDIO_CAP_SD_HS               0x00000010
1535 #define GB_SDIO_CAP_ERASE               0x00000020
1536 #define GB_SDIO_CAP_1_2V_DDR            0x00000040
1537 #define GB_SDIO_CAP_1_8V_DDR            0x00000080
1538 #define GB_SDIO_CAP_POWER_OFF_CARD      0x00000100
1539 #define GB_SDIO_CAP_UHS_SDR12           0x00000200
1540 #define GB_SDIO_CAP_UHS_SDR25           0x00000400
1541 #define GB_SDIO_CAP_UHS_SDR50           0x00000800
1542 #define GB_SDIO_CAP_UHS_SDR104          0x00001000
1543 #define GB_SDIO_CAP_UHS_DDR50           0x00002000
1544 #define GB_SDIO_CAP_DRIVER_TYPE_A       0x00004000
1545 #define GB_SDIO_CAP_DRIVER_TYPE_C       0x00008000
1546 #define GB_SDIO_CAP_DRIVER_TYPE_D       0x00010000
1547 #define GB_SDIO_CAP_HS200_1_2V          0x00020000
1548 #define GB_SDIO_CAP_HS200_1_8V          0x00040000
1549 #define GB_SDIO_CAP_HS400_1_2V          0x00080000
1550 #define GB_SDIO_CAP_HS400_1_8V          0x00100000
1551
1552         /* see possible values below at vdd */
1553         __le32 ocr;
1554         __le16 max_blk_count;
1555         __le16 max_blk_size;
1556         __le32 f_min;
1557         __le32 f_max;
1558 } __packed;
1559
1560 /* set ios request: response has no payload */
1561 struct gb_sdio_set_ios_request {
1562         __le32  clock;
1563         __le32  vdd;
1564 #define GB_SDIO_VDD_165_195     0x00000001
1565 #define GB_SDIO_VDD_20_21       0x00000002
1566 #define GB_SDIO_VDD_21_22       0x00000004
1567 #define GB_SDIO_VDD_22_23       0x00000008
1568 #define GB_SDIO_VDD_23_24       0x00000010
1569 #define GB_SDIO_VDD_24_25       0x00000020
1570 #define GB_SDIO_VDD_25_26       0x00000040
1571 #define GB_SDIO_VDD_26_27       0x00000080
1572 #define GB_SDIO_VDD_27_28       0x00000100
1573 #define GB_SDIO_VDD_28_29       0x00000200
1574 #define GB_SDIO_VDD_29_30       0x00000400
1575 #define GB_SDIO_VDD_30_31       0x00000800
1576 #define GB_SDIO_VDD_31_32       0x00001000
1577 #define GB_SDIO_VDD_32_33       0x00002000
1578 #define GB_SDIO_VDD_33_34       0x00004000
1579 #define GB_SDIO_VDD_34_35       0x00008000
1580 #define GB_SDIO_VDD_35_36       0x00010000
1581
1582         __u8    bus_mode;
1583 #define GB_SDIO_BUSMODE_OPENDRAIN       0x00
1584 #define GB_SDIO_BUSMODE_PUSHPULL        0x01
1585
1586         __u8    power_mode;
1587 #define GB_SDIO_POWER_OFF       0x00
1588 #define GB_SDIO_POWER_UP        0x01
1589 #define GB_SDIO_POWER_ON        0x02
1590 #define GB_SDIO_POWER_UNDEFINED 0x03
1591
1592         __u8    bus_width;
1593 #define GB_SDIO_BUS_WIDTH_1     0x00
1594 #define GB_SDIO_BUS_WIDTH_4     0x02
1595 #define GB_SDIO_BUS_WIDTH_8     0x03
1596
1597         __u8    timing;
1598 #define GB_SDIO_TIMING_LEGACY           0x00
1599 #define GB_SDIO_TIMING_MMC_HS           0x01
1600 #define GB_SDIO_TIMING_SD_HS            0x02
1601 #define GB_SDIO_TIMING_UHS_SDR12        0x03
1602 #define GB_SDIO_TIMING_UHS_SDR25        0x04
1603 #define GB_SDIO_TIMING_UHS_SDR50        0x05
1604 #define GB_SDIO_TIMING_UHS_SDR104       0x06
1605 #define GB_SDIO_TIMING_UHS_DDR50        0x07
1606 #define GB_SDIO_TIMING_MMC_DDR52        0x08
1607 #define GB_SDIO_TIMING_MMC_HS200        0x09
1608 #define GB_SDIO_TIMING_MMC_HS400        0x0A
1609
1610         __u8    signal_voltage;
1611 #define GB_SDIO_SIGNAL_VOLTAGE_330      0x00
1612 #define GB_SDIO_SIGNAL_VOLTAGE_180      0x01
1613 #define GB_SDIO_SIGNAL_VOLTAGE_120      0x02
1614
1615         __u8    drv_type;
1616 #define GB_SDIO_SET_DRIVER_TYPE_B       0x00
1617 #define GB_SDIO_SET_DRIVER_TYPE_A       0x01
1618 #define GB_SDIO_SET_DRIVER_TYPE_C       0x02
1619 #define GB_SDIO_SET_DRIVER_TYPE_D       0x03
1620 } __packed;
1621
1622 /* command request */
1623 struct gb_sdio_command_request {
1624         __u8    cmd;
1625         __u8    cmd_flags;
1626 #define GB_SDIO_RSP_NONE                0x00
1627 #define GB_SDIO_RSP_PRESENT             0x01
1628 #define GB_SDIO_RSP_136                 0x02
1629 #define GB_SDIO_RSP_CRC                 0x04
1630 #define GB_SDIO_RSP_BUSY                0x08
1631 #define GB_SDIO_RSP_OPCODE              0x10
1632
1633         __u8    cmd_type;
1634 #define GB_SDIO_CMD_AC          0x00
1635 #define GB_SDIO_CMD_ADTC        0x01
1636 #define GB_SDIO_CMD_BC          0x02
1637 #define GB_SDIO_CMD_BCR         0x03
1638
1639         __le32  cmd_arg;
1640         __le16  data_blocks;
1641         __le16  data_blksz;
1642 } __packed;
1643
1644 struct gb_sdio_command_response {
1645         __le32  resp[4];
1646 } __packed;
1647
1648 /* transfer request */
1649 struct gb_sdio_transfer_request {
1650         __u8    data_flags;
1651 #define GB_SDIO_DATA_WRITE      0x01
1652 #define GB_SDIO_DATA_READ       0x02
1653 #define GB_SDIO_DATA_STREAM     0x04
1654
1655         __le16  data_blocks;
1656         __le16  data_blksz;
1657         __u8    data[0];
1658 } __packed;
1659
1660 struct gb_sdio_transfer_response {
1661         __le16  data_blocks;
1662         __le16  data_blksz;
1663         __u8    data[0];
1664 } __packed;
1665
1666 /* event request: generated by module and is defined as unidirectional */
1667 struct gb_sdio_event_request {
1668         __u8    event;
1669 #define GB_SDIO_CARD_INSERTED   0x01
1670 #define GB_SDIO_CARD_REMOVED    0x02
1671 #define GB_SDIO_WP              0x04
1672 } __packed;
1673
1674 /* Camera */
1675
1676 /* Greybus Camera request types */
1677 #define GB_CAMERA_TYPE_CAPABILITIES             0x02
1678 #define GB_CAMERA_TYPE_CONFIGURE_STREAMS        0x03
1679 #define GB_CAMERA_TYPE_CAPTURE                  0x04
1680 #define GB_CAMERA_TYPE_FLUSH                    0x05
1681 #define GB_CAMERA_TYPE_METADATA                 0x06
1682
1683 #define GB_CAMERA_MAX_STREAMS                   4
1684 #define GB_CAMERA_MAX_SETTINGS_SIZE             8192
1685
1686 /* Greybus Camera Configure Streams request payload */
1687 struct gb_camera_stream_config_request {
1688         __le16 width;
1689         __le16 height;
1690         __le16 format;
1691         __le16 padding;
1692 } __packed;
1693
1694 struct gb_camera_configure_streams_request {
1695         __u8 num_streams;
1696         __u8 flags;
1697 #define GB_CAMERA_CONFIGURE_STREAMS_TEST_ONLY   0x01
1698         __le16 padding;
1699         struct gb_camera_stream_config_request config[0];
1700 } __packed;
1701
1702 /* Greybus Camera Configure Streams response payload */
1703 struct gb_camera_stream_config_response {
1704         __le16 width;
1705         __le16 height;
1706         __le16 format;
1707         __u8 virtual_channel;
1708         __u8 data_type[2];
1709         __le16 max_pkt_size;
1710         __u8 padding;
1711         __le32 max_size;
1712 } __packed;
1713
1714 struct gb_camera_configure_streams_response_deprecated {
1715         __u8 num_streams;
1716         __u8 flags;
1717         __u8 num_lanes;
1718         __u8 padding;
1719         __le32 bus_freq;
1720         __le32 lines_per_second;
1721         struct gb_camera_stream_config_response config[0];
1722 } __packed;
1723 #define GB_CAMERA_CONFIGURE_STREAMS_DEPRECATED_SIZE     12
1724
1725 struct gb_camera_configure_streams_response {
1726         __u8 num_streams;
1727 #define GB_CAMERA_CONFIGURE_STREAMS_ADJUSTED    0x01
1728         __u8 flags;
1729         __u8 padding[2];
1730         __le32 data_rate;
1731         struct gb_camera_stream_config_response config[0];
1732 };
1733 #define GB_CAMERA_CONFIGURE_STREAMS_SIZE                8
1734
1735 /* Greybus Camera Capture request payload - response has no payload */
1736 struct gb_camera_capture_request {
1737         __le32 request_id;
1738         __u8 streams;
1739         __u8 padding;
1740         __le16 num_frames;
1741         __u8 settings[0];
1742 } __packed;
1743
1744 /* Greybus Camera Flush response payload - request has no payload */
1745 struct gb_camera_flush_response {
1746         __le32 request_id;
1747 } __packed;
1748
1749 /* Greybus Camera Metadata request payload - operation has no response */
1750 struct gb_camera_metadata_request {
1751         __le32 request_id;
1752         __le16 frame_number;
1753         __u8 stream;
1754         __u8 padding;
1755         __u8 metadata[0];
1756 } __packed;
1757
1758 /* Lights */
1759
1760 /* Greybus Lights request types */
1761 #define GB_LIGHTS_TYPE_GET_LIGHTS               0x02
1762 #define GB_LIGHTS_TYPE_GET_LIGHT_CONFIG         0x03
1763 #define GB_LIGHTS_TYPE_GET_CHANNEL_CONFIG       0x04
1764 #define GB_LIGHTS_TYPE_GET_CHANNEL_FLASH_CONFIG 0x05
1765 #define GB_LIGHTS_TYPE_SET_BRIGHTNESS           0x06
1766 #define GB_LIGHTS_TYPE_SET_BLINK                0x07
1767 #define GB_LIGHTS_TYPE_SET_COLOR                0x08
1768 #define GB_LIGHTS_TYPE_SET_FADE                 0x09
1769 #define GB_LIGHTS_TYPE_EVENT                    0x0A
1770 #define GB_LIGHTS_TYPE_SET_FLASH_INTENSITY      0x0B
1771 #define GB_LIGHTS_TYPE_SET_FLASH_STROBE         0x0C
1772 #define GB_LIGHTS_TYPE_SET_FLASH_TIMEOUT        0x0D
1773 #define GB_LIGHTS_TYPE_GET_FLASH_FAULT          0x0E
1774
1775 /* Greybus Light modes */
1776
1777 /*
1778  * if you add any specific mode below, update also the
1779  * GB_CHANNEL_MODE_DEFINED_RANGE value accordingly
1780  */
1781 #define GB_CHANNEL_MODE_NONE            0x00000000
1782 #define GB_CHANNEL_MODE_BATTERY         0x00000001
1783 #define GB_CHANNEL_MODE_POWER           0x00000002
1784 #define GB_CHANNEL_MODE_WIRELESS        0x00000004
1785 #define GB_CHANNEL_MODE_BLUETOOTH       0x00000008
1786 #define GB_CHANNEL_MODE_KEYBOARD        0x00000010
1787 #define GB_CHANNEL_MODE_BUTTONS         0x00000020
1788 #define GB_CHANNEL_MODE_NOTIFICATION    0x00000040
1789 #define GB_CHANNEL_MODE_ATTENTION       0x00000080
1790 #define GB_CHANNEL_MODE_FLASH           0x00000100
1791 #define GB_CHANNEL_MODE_TORCH           0x00000200
1792 #define GB_CHANNEL_MODE_INDICATOR       0x00000400
1793
1794 /* Lights Mode valid bit values */
1795 #define GB_CHANNEL_MODE_DEFINED_RANGE   0x000004FF
1796 #define GB_CHANNEL_MODE_VENDOR_RANGE    0x00F00000
1797
1798 /* Greybus Light Channels Flags */
1799 #define GB_LIGHT_CHANNEL_MULTICOLOR     0x00000001
1800 #define GB_LIGHT_CHANNEL_FADER          0x00000002
1801 #define GB_LIGHT_CHANNEL_BLINK          0x00000004
1802
1803 /* get count of lights in module */
1804 struct gb_lights_get_lights_response {
1805         __u8    lights_count;
1806 } __packed;
1807
1808 /* light config request payload */
1809 struct gb_lights_get_light_config_request {
1810         __u8    id;
1811 } __packed;
1812
1813 /* light config response payload */
1814 struct gb_lights_get_light_config_response {
1815         __u8    channel_count;
1816         __u8    name[32];
1817 } __packed;
1818
1819 /* channel config request payload */
1820 struct gb_lights_get_channel_config_request {
1821         __u8    light_id;
1822         __u8    channel_id;
1823 } __packed;
1824
1825 /* channel flash config request payload */
1826 struct gb_lights_get_channel_flash_config_request {
1827         __u8    light_id;
1828         __u8    channel_id;
1829 } __packed;
1830
1831 /* channel config response payload */
1832 struct gb_lights_get_channel_config_response {
1833         __u8    max_brightness;
1834         __le32  flags;
1835         __le32  color;
1836         __u8    color_name[32];
1837         __le32  mode;
1838         __u8    mode_name[32];
1839 } __packed;
1840
1841 /* channel flash config response payload */
1842 struct gb_lights_get_channel_flash_config_response {
1843         __le32  intensity_min_uA;
1844         __le32  intensity_max_uA;
1845         __le32  intensity_step_uA;
1846         __le32  timeout_min_us;
1847         __le32  timeout_max_us;
1848         __le32  timeout_step_us;
1849 } __packed;
1850
1851 /* blink request payload: response have no payload */
1852 struct gb_lights_blink_request {
1853         __u8    light_id;
1854         __u8    channel_id;
1855         __le16  time_on_ms;
1856         __le16  time_off_ms;
1857 } __packed;
1858
1859 /* set brightness request payload: response have no payload */
1860 struct gb_lights_set_brightness_request {
1861         __u8    light_id;
1862         __u8    channel_id;
1863         __u8    brightness;
1864 } __packed;
1865
1866 /* set color request payload: response have no payload */
1867 struct gb_lights_set_color_request {
1868         __u8    light_id;
1869         __u8    channel_id;
1870         __le32  color;
1871 } __packed;
1872
1873 /* set fade request payload: response have no payload */
1874 struct gb_lights_set_fade_request {
1875         __u8    light_id;
1876         __u8    channel_id;
1877         __u8    fade_in;
1878         __u8    fade_out;
1879 } __packed;
1880
1881 /* event request: generated by module */
1882 struct gb_lights_event_request {
1883         __u8    light_id;
1884         __u8    event;
1885 #define GB_LIGHTS_LIGHT_CONFIG          0x01
1886 } __packed;
1887
1888 /* set flash intensity request payload: response have no payload */
1889 struct gb_lights_set_flash_intensity_request {
1890         __u8    light_id;
1891         __u8    channel_id;
1892         __le32  intensity_uA;
1893 } __packed;
1894
1895 /* set flash strobe state request payload: response have no payload */
1896 struct gb_lights_set_flash_strobe_request {
1897         __u8    light_id;
1898         __u8    channel_id;
1899         __u8    state;
1900 } __packed;
1901
1902 /* set flash timeout request payload: response have no payload */
1903 struct gb_lights_set_flash_timeout_request {
1904         __u8    light_id;
1905         __u8    channel_id;
1906         __le32  timeout_us;
1907 } __packed;
1908
1909 /* get flash fault request payload */
1910 struct gb_lights_get_flash_fault_request {
1911         __u8    light_id;
1912         __u8    channel_id;
1913 } __packed;
1914
1915 /* get flash fault response payload */
1916 struct gb_lights_get_flash_fault_response {
1917         __le32  fault;
1918 #define GB_LIGHTS_FLASH_FAULT_OVER_VOLTAGE              0x00000000
1919 #define GB_LIGHTS_FLASH_FAULT_TIMEOUT                   0x00000001
1920 #define GB_LIGHTS_FLASH_FAULT_OVER_TEMPERATURE          0x00000002
1921 #define GB_LIGHTS_FLASH_FAULT_SHORT_CIRCUIT             0x00000004
1922 #define GB_LIGHTS_FLASH_FAULT_OVER_CURRENT              0x00000008
1923 #define GB_LIGHTS_FLASH_FAULT_INDICATOR                 0x00000010
1924 #define GB_LIGHTS_FLASH_FAULT_UNDER_VOLTAGE             0x00000020
1925 #define GB_LIGHTS_FLASH_FAULT_INPUT_VOLTAGE             0x00000040
1926 #define GB_LIGHTS_FLASH_FAULT_LED_OVER_TEMPERATURE      0x00000080
1927 } __packed;
1928
1929 /* Audio */
1930
1931 #define GB_AUDIO_TYPE_GET_TOPOLOGY_SIZE         0x02
1932 #define GB_AUDIO_TYPE_GET_TOPOLOGY              0x03
1933 #define GB_AUDIO_TYPE_GET_CONTROL               0x04
1934 #define GB_AUDIO_TYPE_SET_CONTROL               0x05
1935 #define GB_AUDIO_TYPE_ENABLE_WIDGET             0x06
1936 #define GB_AUDIO_TYPE_DISABLE_WIDGET            0x07
1937 #define GB_AUDIO_TYPE_GET_PCM                   0x08
1938 #define GB_AUDIO_TYPE_SET_PCM                   0x09
1939 #define GB_AUDIO_TYPE_SET_TX_DATA_SIZE          0x0a
1940 #define GB_AUDIO_TYPE_GET_TX_DELAY              0x0b
1941 #define GB_AUDIO_TYPE_ACTIVATE_TX               0x0c
1942 #define GB_AUDIO_TYPE_DEACTIVATE_TX             0x0d
1943 #define GB_AUDIO_TYPE_SET_RX_DATA_SIZE          0x0e
1944 #define GB_AUDIO_TYPE_GET_RX_DELAY              0x0f
1945 #define GB_AUDIO_TYPE_ACTIVATE_RX               0x10
1946 #define GB_AUDIO_TYPE_DEACTIVATE_RX             0x11
1947 #define GB_AUDIO_TYPE_JACK_EVENT                0x12
1948 #define GB_AUDIO_TYPE_BUTTON_EVENT              0x13
1949 #define GB_AUDIO_TYPE_STREAMING_EVENT           0x14
1950 #define GB_AUDIO_TYPE_SEND_DATA                 0x15
1951
1952 /* Module must be able to buffer 10ms of audio data, minimum */
1953 #define GB_AUDIO_SAMPLE_BUFFER_MIN_US           10000
1954
1955 #define GB_AUDIO_PCM_NAME_MAX                   32
1956 #define AUDIO_DAI_NAME_MAX                      32
1957 #define AUDIO_CONTROL_NAME_MAX                  32
1958 #define AUDIO_CTL_ELEM_NAME_MAX                 44
1959 #define AUDIO_ENUM_NAME_MAX                     64
1960 #define AUDIO_WIDGET_NAME_MAX                   32
1961
1962 /* See SNDRV_PCM_FMTBIT_* in Linux source */
1963 #define GB_AUDIO_PCM_FMT_S8                     BIT(0)
1964 #define GB_AUDIO_PCM_FMT_U8                     BIT(1)
1965 #define GB_AUDIO_PCM_FMT_S16_LE                 BIT(2)
1966 #define GB_AUDIO_PCM_FMT_S16_BE                 BIT(3)
1967 #define GB_AUDIO_PCM_FMT_U16_LE                 BIT(4)
1968 #define GB_AUDIO_PCM_FMT_U16_BE                 BIT(5)
1969 #define GB_AUDIO_PCM_FMT_S24_LE                 BIT(6)
1970 #define GB_AUDIO_PCM_FMT_S24_BE                 BIT(7)
1971 #define GB_AUDIO_PCM_FMT_U24_LE                 BIT(8)
1972 #define GB_AUDIO_PCM_FMT_U24_BE                 BIT(9)
1973 #define GB_AUDIO_PCM_FMT_S32_LE                 BIT(10)
1974 #define GB_AUDIO_PCM_FMT_S32_BE                 BIT(11)
1975 #define GB_AUDIO_PCM_FMT_U32_LE                 BIT(12)
1976 #define GB_AUDIO_PCM_FMT_U32_BE                 BIT(13)
1977
1978 /* See SNDRV_PCM_RATE_* in Linux source */
1979 #define GB_AUDIO_PCM_RATE_5512                  BIT(0)
1980 #define GB_AUDIO_PCM_RATE_8000                  BIT(1)
1981 #define GB_AUDIO_PCM_RATE_11025                 BIT(2)
1982 #define GB_AUDIO_PCM_RATE_16000                 BIT(3)
1983 #define GB_AUDIO_PCM_RATE_22050                 BIT(4)
1984 #define GB_AUDIO_PCM_RATE_32000                 BIT(5)
1985 #define GB_AUDIO_PCM_RATE_44100                 BIT(6)
1986 #define GB_AUDIO_PCM_RATE_48000                 BIT(7)
1987 #define GB_AUDIO_PCM_RATE_64000                 BIT(8)
1988 #define GB_AUDIO_PCM_RATE_88200                 BIT(9)
1989 #define GB_AUDIO_PCM_RATE_96000                 BIT(10)
1990 #define GB_AUDIO_PCM_RATE_176400                BIT(11)
1991 #define GB_AUDIO_PCM_RATE_192000                BIT(12)
1992
1993 #define GB_AUDIO_STREAM_TYPE_CAPTURE            0x1
1994 #define GB_AUDIO_STREAM_TYPE_PLAYBACK           0x2
1995
1996 #define GB_AUDIO_CTL_ELEM_ACCESS_READ           BIT(0)
1997 #define GB_AUDIO_CTL_ELEM_ACCESS_WRITE          BIT(1)
1998
1999 /* See SNDRV_CTL_ELEM_TYPE_* in Linux source */
2000 #define GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN          0x01
2001 #define GB_AUDIO_CTL_ELEM_TYPE_INTEGER          0x02
2002 #define GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED       0x03
2003 #define GB_AUDIO_CTL_ELEM_TYPE_INTEGER64        0x06
2004
2005 /* See SNDRV_CTL_ELEM_IFACE_* in Linux source */
2006 #define GB_AUDIO_CTL_ELEM_IFACE_CARD            0x00
2007 #define GB_AUDIO_CTL_ELEM_IFACE_HWDEP           0x01
2008 #define GB_AUDIO_CTL_ELEM_IFACE_MIXER           0x02
2009 #define GB_AUDIO_CTL_ELEM_IFACE_PCM             0x03
2010 #define GB_AUDIO_CTL_ELEM_IFACE_RAWMIDI         0x04
2011 #define GB_AUDIO_CTL_ELEM_IFACE_TIMER           0x05
2012 #define GB_AUDIO_CTL_ELEM_IFACE_SEQUENCER       0x06
2013
2014 /* SNDRV_CTL_ELEM_ACCESS_* in Linux source */
2015 #define GB_AUDIO_ACCESS_READ                    BIT(0)
2016 #define GB_AUDIO_ACCESS_WRITE                   BIT(1)
2017 #define GB_AUDIO_ACCESS_VOLATILE                BIT(2)
2018 #define GB_AUDIO_ACCESS_TIMESTAMP               BIT(3)
2019 #define GB_AUDIO_ACCESS_TLV_READ                BIT(4)
2020 #define GB_AUDIO_ACCESS_TLV_WRITE               BIT(5)
2021 #define GB_AUDIO_ACCESS_TLV_COMMAND             BIT(6)
2022 #define GB_AUDIO_ACCESS_INACTIVE                BIT(7)
2023 #define GB_AUDIO_ACCESS_LOCK                    BIT(8)
2024 #define GB_AUDIO_ACCESS_OWNER                   BIT(9)
2025
2026 /* enum snd_soc_dapm_type */
2027 #define GB_AUDIO_WIDGET_TYPE_INPUT              0x0
2028 #define GB_AUDIO_WIDGET_TYPE_OUTPUT             0x1
2029 #define GB_AUDIO_WIDGET_TYPE_MUX                0x2
2030 #define GB_AUDIO_WIDGET_TYPE_VIRT_MUX           0x3
2031 #define GB_AUDIO_WIDGET_TYPE_VALUE_MUX          0x4
2032 #define GB_AUDIO_WIDGET_TYPE_MIXER              0x5
2033 #define GB_AUDIO_WIDGET_TYPE_MIXER_NAMED_CTL    0x6
2034 #define GB_AUDIO_WIDGET_TYPE_PGA                0x7
2035 #define GB_AUDIO_WIDGET_TYPE_OUT_DRV            0x8
2036 #define GB_AUDIO_WIDGET_TYPE_ADC                0x9
2037 #define GB_AUDIO_WIDGET_TYPE_DAC                0xa
2038 #define GB_AUDIO_WIDGET_TYPE_MICBIAS            0xb
2039 #define GB_AUDIO_WIDGET_TYPE_MIC                0xc
2040 #define GB_AUDIO_WIDGET_TYPE_HP                 0xd
2041 #define GB_AUDIO_WIDGET_TYPE_SPK                0xe
2042 #define GB_AUDIO_WIDGET_TYPE_LINE               0xf
2043 #define GB_AUDIO_WIDGET_TYPE_SWITCH             0x10
2044 #define GB_AUDIO_WIDGET_TYPE_VMID               0x11
2045 #define GB_AUDIO_WIDGET_TYPE_PRE                0x12
2046 #define GB_AUDIO_WIDGET_TYPE_POST               0x13
2047 #define GB_AUDIO_WIDGET_TYPE_SUPPLY             0x14
2048 #define GB_AUDIO_WIDGET_TYPE_REGULATOR_SUPPLY   0x15
2049 #define GB_AUDIO_WIDGET_TYPE_CLOCK_SUPPLY       0x16
2050 #define GB_AUDIO_WIDGET_TYPE_AIF_IN             0x17
2051 #define GB_AUDIO_WIDGET_TYPE_AIF_OUT            0x18
2052 #define GB_AUDIO_WIDGET_TYPE_SIGGEN             0x19
2053 #define GB_AUDIO_WIDGET_TYPE_DAI_IN             0x1a
2054 #define GB_AUDIO_WIDGET_TYPE_DAI_OUT            0x1b
2055 #define GB_AUDIO_WIDGET_TYPE_DAI_LINK           0x1c
2056
2057 #define GB_AUDIO_WIDGET_STATE_DISABLED          0x01
2058 #define GB_AUDIO_WIDGET_STATE_ENAABLED          0x02
2059
2060 #define GB_AUDIO_JACK_EVENT_INSERTION           0x1
2061 #define GB_AUDIO_JACK_EVENT_REMOVAL             0x2
2062
2063 #define GB_AUDIO_BUTTON_EVENT_PRESS             0x1
2064 #define GB_AUDIO_BUTTON_EVENT_RELEASE           0x2
2065
2066 #define GB_AUDIO_STREAMING_EVENT_UNSPECIFIED    0x1
2067 #define GB_AUDIO_STREAMING_EVENT_HALT           0x2
2068 #define GB_AUDIO_STREAMING_EVENT_INTERNAL_ERROR 0x3
2069 #define GB_AUDIO_STREAMING_EVENT_PROTOCOL_ERROR 0x4
2070 #define GB_AUDIO_STREAMING_EVENT_FAILURE        0x5
2071 #define GB_AUDIO_STREAMING_EVENT_UNDERRUN       0x6
2072 #define GB_AUDIO_STREAMING_EVENT_OVERRUN        0x7
2073 #define GB_AUDIO_STREAMING_EVENT_CLOCKING       0x8
2074 #define GB_AUDIO_STREAMING_EVENT_DATA_LEN       0x9
2075
2076 #define GB_AUDIO_INVALID_INDEX                  0xff
2077
2078 struct gb_audio_pcm {
2079         __u8    stream_name[GB_AUDIO_PCM_NAME_MAX];
2080         __le32  formats;        /* GB_AUDIO_PCM_FMT_* */
2081         __le32  rates;          /* GB_AUDIO_PCM_RATE_* */
2082         __u8    chan_min;
2083         __u8    chan_max;
2084         __u8    sig_bits;       /* number of bits of content */
2085 } __packed;
2086
2087 struct gb_audio_dai {
2088         __u8                    name[AUDIO_DAI_NAME_MAX];
2089         __le16                  data_cport;
2090         struct gb_audio_pcm     capture;
2091         struct gb_audio_pcm     playback;
2092 } __packed;
2093
2094 struct gb_audio_integer {
2095         __le32  min;
2096         __le32  max;
2097         __le32  step;
2098 } __packed;
2099
2100 struct gb_audio_integer64 {
2101         __le64  min;
2102         __le64  max;
2103         __le64  step;
2104 } __packed;
2105
2106 struct gb_audio_enumerated {
2107         __le32  items;
2108         __le16  names_length;
2109         __u8    names[0];
2110 } __packed;
2111
2112 struct gb_audio_ctl_elem_info { /* See snd_ctl_elem_info in Linux source */
2113         __u8            type;           /* GB_AUDIO_CTL_ELEM_TYPE_* */
2114         __le16          dimen[4];
2115         union {
2116                 struct gb_audio_integer         integer;
2117                 struct gb_audio_integer64       integer64;
2118                 struct gb_audio_enumerated      enumerated;
2119         } value;
2120 } __packed;
2121
2122 struct gb_audio_ctl_elem_value { /* See snd_ctl_elem_value in Linux source */
2123         __le64                          timestamp; /* XXX needed? */
2124         union {
2125                 __le32  integer_value[2];       /* consider CTL_DOUBLE_xxx */
2126                 __le64  integer64_value[2];
2127                 __le32  enumerated_item[2];
2128         } value;
2129 } __packed;
2130
2131 struct gb_audio_control {
2132         __u8    name[AUDIO_CONTROL_NAME_MAX];
2133         __u8    id;             /* 0-63 */
2134         __u8    iface;          /* GB_AUDIO_IFACE_* */
2135         __le16  data_cport;
2136         __le32  access;         /* GB_AUDIO_ACCESS_* */
2137         __u8    count;          /* count of same elements */
2138         __u8    count_values;   /* count of values, max=2 for CTL_DOUBLE_xxx */
2139         struct gb_audio_ctl_elem_info   info;
2140 } __packed;
2141
2142 struct gb_audio_widget {
2143         __u8    name[AUDIO_WIDGET_NAME_MAX];
2144         __u8    sname[AUDIO_WIDGET_NAME_MAX];
2145         __u8    id;
2146         __u8    type;           /* GB_AUDIO_WIDGET_TYPE_* */
2147         __u8    state;          /* GB_AUDIO_WIDGET_STATE_* */
2148         __u8    ncontrols;
2149         struct gb_audio_control ctl[0]; /* 'ncontrols' entries */
2150 } __packed;
2151
2152 struct gb_audio_route {
2153         __u8    source_id;      /* widget id */
2154         __u8    destination_id; /* widget id */
2155         __u8    control_id;     /* 0-63 */
2156         __u8    index;          /* Selection within the control */
2157 } __packed;
2158
2159 struct gb_audio_topology {
2160         __u8    num_dais;
2161         __u8    num_controls;
2162         __u8    num_widgets;
2163         __u8    num_routes;
2164         __u32   size_dais;
2165         __u32   size_controls;
2166         __u32   size_widgets;
2167         __u32   size_routes;
2168         /*
2169          * struct gb_audio_dai          dai[num_dais];
2170          * struct gb_audio_control      controls[num_controls];
2171          * struct gb_audio_widget       widgets[num_widgets];
2172          * struct gb_audio_route        routes[num_routes];
2173          */
2174         __u8    data[0];
2175 } __packed;
2176
2177 struct gb_audio_get_topology_size_response {
2178         __le16  size;
2179 } __packed;
2180
2181 struct gb_audio_get_topology_response {
2182         struct gb_audio_topology        topology;
2183 } __packed;
2184
2185 struct gb_audio_get_control_request {
2186         __u8    control_id;
2187         __u8    index;
2188 } __packed;
2189
2190 struct gb_audio_get_control_response {
2191         struct gb_audio_ctl_elem_value  value;
2192 } __packed;
2193
2194 struct gb_audio_set_control_request {
2195         __u8    control_id;
2196         __u8    index;
2197         struct gb_audio_ctl_elem_value  value;
2198 } __packed;
2199
2200 struct gb_audio_enable_widget_request {
2201         __u8    widget_id;
2202 } __packed;
2203
2204 struct gb_audio_disable_widget_request {
2205         __u8    widget_id;
2206 } __packed;
2207
2208 struct gb_audio_get_pcm_request {
2209         __le16  data_cport;
2210 } __packed;
2211
2212 struct gb_audio_get_pcm_response {
2213         __le32  format;
2214         __le32  rate;
2215         __u8    channels;
2216         __u8    sig_bits;
2217 } __packed;
2218
2219 struct gb_audio_set_pcm_request {
2220         __le16  data_cport;
2221         __le32  format;
2222         __le32  rate;
2223         __u8    channels;
2224         __u8    sig_bits;
2225 } __packed;
2226
2227 struct gb_audio_set_tx_data_size_request {
2228         __le16  data_cport;
2229         __le16  size;
2230 } __packed;
2231
2232 struct gb_audio_get_tx_delay_request {
2233         __le16  data_cport;
2234 } __packed;
2235
2236 struct gb_audio_get_tx_delay_response {
2237         __le32  delay;
2238 } __packed;
2239
2240 struct gb_audio_activate_tx_request {
2241         __le16  data_cport;
2242 } __packed;
2243
2244 struct gb_audio_deactivate_tx_request {
2245         __le16  data_cport;
2246 } __packed;
2247
2248 struct gb_audio_set_rx_data_size_request {
2249         __le16  data_cport;
2250         __le16  size;
2251 } __packed;
2252
2253 struct gb_audio_get_rx_delay_request {
2254         __le16  data_cport;
2255 } __packed;
2256
2257 struct gb_audio_get_rx_delay_response {
2258         __le32  delay;
2259 } __packed;
2260
2261 struct gb_audio_activate_rx_request {
2262         __le16  data_cport;
2263 } __packed;
2264
2265 struct gb_audio_deactivate_rx_request {
2266         __le16  data_cport;
2267 } __packed;
2268
2269 struct gb_audio_jack_event_request {
2270         __u8    widget_id;
2271         __u8    jack_attribute;
2272         __u8    event;
2273 } __packed;
2274
2275 struct gb_audio_button_event_request {
2276         __u8    widget_id;
2277         __u8    button_id;
2278         __u8    event;
2279 } __packed;
2280
2281 struct gb_audio_streaming_event_request {
2282         __le16  data_cport;
2283         __u8    event;
2284 } __packed;
2285
2286 struct gb_audio_send_data_request {
2287         __le64  timestamp;
2288         __u8    data[0];
2289 } __packed;
2290
2291
2292 /* Log */
2293
2294 /* operations */
2295 #define GB_LOG_TYPE_SEND_LOG    0x02
2296
2297 /* length */
2298 #define GB_LOG_MAX_LEN          1024
2299
2300 struct gb_log_send_log_request {
2301         __le16  len;
2302         __u8    msg[0];
2303 } __packed;
2304
2305 #endif /* __GREYBUS_PROTOCOLS_H */
2306