Merge tag 'staging-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO updates from Greg KH:
 "Here is the big staging and IIO driver pull request for 4.9-rc1.

  There are a lot of patches in here, the majority due to the
  drivers/staging/greybus/ subsystem being merged in with full
  development history that went back a few years, in order to preserve
  the work that those developers did over time.

  Lots and lots of tiny cleanups happened in the tree as well, due to
  the Outreachy application process and lots of other developers showing
  up for the first time to clean code up.  Along with those changes, we
  deleted a wireless driver, and added a raspberrypi driver (currently
  marked broken), and lots of new iio drivers.

  Overall the tree still shrunk with more lines removed than added,
  about 10 thousand lines removed in total. Full details are in the very
  long shortlog below.

  All of this has been in the linux-next tree with no issues. There will
  be some merge problems with other subsystem trees, but those are all
  minor problems and shouldn't be hard to work out when they happen
  (MAINTAINERS and some lustre build problems with the IB tree)"

And furter from me asking for clarification about greybus:
 "Right now there is a phone from Motorola shipping with this code (a
  slightly older version, but the same tree), so even though Ara is not
  alive in the same form, the functionality is happening. We are working
  with the developers of that phone to merge the newer stuff in with
  their fork so they can use the upstream version in future versions of
  their phone product line.

  Toshiba has at least one chip shipping in their catalog that
  needs/uses this protocol over a Unipro link, and rumor has it that
  there might be more in the future.

  There are also other users of the greybus protocols, there is a talk
  next week at ELC that shows how it is being used across a network
  connection to control a device, and previous ELC talks have showed the
  protocol stack being used over USB to drive embedded Linux boards.
  I've also talked to some people who are starting to work to add a host
  controller driver to control arduinos as the greybus PHY protocols are
  very useful to control a serial/i2c/spio/whatever device across a
  random physical link, as it is a way to have a self-describing device
  be attached to a host without needing manual configuration.

  So yes, people are using it, and there is still the chance that it
  will show up in a phone/laptop/tablet/whatever from Google in the
  future as well, the tech isn't dead, even if the original large phone
  project happens to be"

* tag 'staging-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (3703 commits)
  Staging: fbtft: Fix bug in fbtft-core
  staging: rtl8188eu: fix double unlock error in rtw_resume_process()
  staging:r8188eu: remove GEN_MLME_EXT_HANDLER macro
  staging:r8188eu: remove GEN_DRV_CMD_HANDLER macro
  staging:r8188eu: remove GEN_EVT_CODE macro
  staging:r8188eu: remove GEN_CMD_CODE macro
  staging:r8188eu: remove pkt_newalloc member of the recv_buf structure
  staging:r8188eu: remove rtw_handle_dualmac declaration
  staging:r8188eu: remove (RGTRY|BSSID)_(OFT|SZ) macros
  staging:r8188eu: change rtl8188e_process_phy_info function argument type
  Staging: fsl-mc: Remove blank lines
  Staging: fsl-mc: Fix unaligned * in block comments
  Staging: comedi: Align the * in block comments
  Staging : ks7010 : Fix block comments warninig
  Staging: vt6655: Remove explicit NULL comparison using Coccinelle
  staging: rtl8188eu: core: rtw_xmit: Use macros instead of constants
  staging: rtl8188eu: core: rtw_xmit: Move constant of the right side
  staging: dgnc: Fix lines longer than 80 characters
  Staging: dgnc: constify attribute_group structures
  Staging: most: hdm-dim2: constify attribute_group structures
  ...

1 files changed, 2268 insertions, 0 deletions

diff --git a/drivers/staging/greybus/greybus_protocols.h b/drivers/staging/greybus/greybus_protocols.h
new file mode 100644
index 0000000..6395783
--- /dev/null
+++ b/drivers/staging/greybus/greybus_protocols.h
@@ -0,0 +1,2268 @@
+/*
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2014 - 2015 Google Inc. All rights reserved.
+ * Copyright(c) 2014 - 2015 Linaro Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2014 - 2015 Google Inc. All rights reserved.
+ * Copyright(c) 2014 - 2015 Linaro Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name of Google Inc. or Linaro Ltd. nor the names of
+ *    its contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR
+ * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __GREYBUS_PROTOCOLS_H
+#define __GREYBUS_PROTOCOLS_H
+
+/* Fixed IDs for control/svc protocols */
+
+/* SVC switch-port device ids */
+#define GB_SVC_DEVICE_ID_SVC			0
+#define GB_SVC_DEVICE_ID_AP			1
+#define GB_SVC_DEVICE_ID_MIN			2
+#define GB_SVC_DEVICE_ID_MAX			31
+
+#define GB_SVC_CPORT_ID				0
+#define GB_CONTROL_BUNDLE_ID			0
+#define GB_CONTROL_CPORT_ID			0
+
+
+/*
+ * All operation messages (both requests and responses) begin with
+ * a header that encodes the size of the message (header included).
+ * This header also contains a unique identifier, that associates a
+ * response message with its operation.  The header contains an
+ * operation type field, whose interpretation is dependent on what
+ * type of protocol is used over the connection.  The high bit
+ * (0x80) of the operation type field is used to indicate whether
+ * the message is a request (clear) or a response (set).
+ *
+ * Response messages include an additional result byte, which
+ * communicates the result of the corresponding request.  A zero
+ * result value means the operation completed successfully.  Any
+ * other value indicates an error; in this case, the payload of the
+ * response message (if any) is ignored.  The result byte must be
+ * zero in the header for a request message.
+ *
+ * The wire format for all numeric fields in the header is little
+ * endian.  Any operation-specific data begins immediately after the
+ * header.
+ */
+struct gb_operation_msg_hdr {
+	__le16	size;		/* Size in bytes of header + payload */
+	__le16	operation_id;	/* Operation unique id */
+	__u8	type;		/* E.g GB_I2C_TYPE_* or GB_GPIO_TYPE_* */
+	__u8	result;		/* Result of request (in responses only) */
+	__u8	pad[2];		/* must be zero (ignore when read) */
+} __packed;
+
+
+/* Generic request types */
+#define GB_REQUEST_TYPE_CPORT_SHUTDOWN		0x00
+#define GB_REQUEST_TYPE_INVALID			0x7f
+
+struct gb_cport_shutdown_request {
+	__u8 phase;
+} __packed;
+
+
+/* Control Protocol */
+
+/* Greybus control request types */
+#define GB_CONTROL_TYPE_VERSION			0x01
+#define GB_CONTROL_TYPE_PROBE_AP		0x02
+#define GB_CONTROL_TYPE_GET_MANIFEST_SIZE	0x03
+#define GB_CONTROL_TYPE_GET_MANIFEST		0x04
+#define GB_CONTROL_TYPE_CONNECTED		0x05
+#define GB_CONTROL_TYPE_DISCONNECTED		0x06
+#define GB_CONTROL_TYPE_TIMESYNC_ENABLE		0x07
+#define GB_CONTROL_TYPE_TIMESYNC_DISABLE	0x08
+#define GB_CONTROL_TYPE_TIMESYNC_AUTHORITATIVE	0x09
+/*	Unused					0x0a */
+#define GB_CONTROL_TYPE_BUNDLE_VERSION		0x0b
+#define GB_CONTROL_TYPE_DISCONNECTING		0x0c
+#define GB_CONTROL_TYPE_TIMESYNC_GET_LAST_EVENT	0x0d
+#define GB_CONTROL_TYPE_MODE_SWITCH		0x0e
+#define GB_CONTROL_TYPE_BUNDLE_SUSPEND		0x0f
+#define GB_CONTROL_TYPE_BUNDLE_RESUME		0x10
+#define GB_CONTROL_TYPE_BUNDLE_DEACTIVATE	0x11
+#define GB_CONTROL_TYPE_BUNDLE_ACTIVATE		0x12
+#define GB_CONTROL_TYPE_INTF_SUSPEND_PREPARE		0x13
+#define GB_CONTROL_TYPE_INTF_DEACTIVATE_PREPARE	0x14
+#define GB_CONTROL_TYPE_INTF_HIBERNATE_ABORT	0x15
+
+struct gb_control_version_request {
+	__u8	major;
+	__u8	minor;
+} __packed;
+
+struct gb_control_version_response {
+	__u8	major;
+	__u8	minor;
+} __packed;
+
+struct gb_control_bundle_version_request {
+	__u8	bundle_id;
+} __packed;
+
+struct gb_control_bundle_version_response {
+	__u8	major;
+	__u8	minor;
+} __packed;
+
+/* Control protocol manifest get size request has no payload*/
+struct gb_control_get_manifest_size_response {
+	__le16			size;
+} __packed;
+
+/* Control protocol manifest get request has no payload */
+struct gb_control_get_manifest_response {
+	__u8			data[0];
+} __packed;
+
+/* Control protocol [dis]connected request */
+struct gb_control_connected_request {
+	__le16			cport_id;
+} __packed;
+
+struct gb_control_disconnecting_request {
+	__le16			cport_id;
+} __packed;
+/* disconnecting response has no payload */
+
+struct gb_control_disconnected_request {
+	__le16			cport_id;
+} __packed;
+/* Control protocol [dis]connected response has no payload */
+
+#define GB_TIMESYNC_MAX_STROBES			0x04
+
+struct gb_control_timesync_enable_request {
+	__u8	count;
+	__le64	frame_time;
+	__le32	strobe_delay;
+	__le32	refclk;
+} __packed;
+/* timesync enable response has no payload */
+
+struct gb_control_timesync_authoritative_request {
+	__le64	frame_time[GB_TIMESYNC_MAX_STROBES];
+} __packed;
+/* timesync authoritative response has no payload */
+
+/* timesync get_last_event_request has no payload */
+struct gb_control_timesync_get_last_event_response {
+	__le64	frame_time;
+} __packed;
+
+/*
+ * All Bundle power management operations use the same request and response
+ * layout and status codes.
+ */
+
+#define GB_CONTROL_BUNDLE_PM_OK		0x00
+#define GB_CONTROL_BUNDLE_PM_INVAL	0x01
+#define GB_CONTROL_BUNDLE_PM_BUSY	0x02
+#define GB_CONTROL_BUNDLE_PM_FAIL	0x03
+#define GB_CONTROL_BUNDLE_PM_NA		0x04
+
+struct gb_control_bundle_pm_request {
+	__u8	bundle_id;
+} __packed;
+
+struct gb_control_bundle_pm_response {
+	__u8	status;
+} __packed;
+
+/*
+ * Interface Suspend Prepare and Deactivate Prepare operations use the same
+ * response layout and error codes. Define a single response structure and reuse
+ * it. Both operations have no payload.
+ */
+
+#define GB_CONTROL_INTF_PM_OK		0x00
+#define GB_CONTROL_INTF_PM_BUSY		0x01
+#define GB_CONTROL_INTF_PM_NA		0x02
+
+struct gb_control_intf_pm_response {
+	__u8	status;
+} __packed;
+
+/* APBridge protocol */
+
+/* request APB1 log */
+#define GB_APB_REQUEST_LOG			0x02
+
+/* request to map a cport to bulk in and bulk out endpoints */
+#define GB_APB_REQUEST_EP_MAPPING		0x03
+
+/* request to get the number of cports available */
+#define GB_APB_REQUEST_CPORT_COUNT		0x04
+
+/* request to reset a cport state */
+#define GB_APB_REQUEST_RESET_CPORT		0x05
+
+/* request to time the latency of messages on a given cport */
+#define GB_APB_REQUEST_LATENCY_TAG_EN		0x06
+#define GB_APB_REQUEST_LATENCY_TAG_DIS		0x07
+
+/* request to control the CSI transmitter */
+#define GB_APB_REQUEST_CSI_TX_CONTROL		0x08
+
+/* request to control audio streaming */
+#define GB_APB_REQUEST_AUDIO_CONTROL		0x09
+
+/* TimeSync requests */
+#define GB_APB_REQUEST_TIMESYNC_ENABLE		0x0d
+#define GB_APB_REQUEST_TIMESYNC_DISABLE		0x0e
+#define GB_APB_REQUEST_TIMESYNC_AUTHORITATIVE	0x0f
+#define GB_APB_REQUEST_TIMESYNC_GET_LAST_EVENT	0x10
+
+/* requests to set Greybus CPort flags */
+#define GB_APB_REQUEST_CPORT_FLAGS		0x11
+
+/* ARPC request */
+#define GB_APB_REQUEST_ARPC_RUN			0x12
+
+struct gb_apb_request_cport_flags {
+	__le32	flags;
+#define GB_APB_CPORT_FLAG_CONTROL		0x01
+#define GB_APB_CPORT_FLAG_HIGH_PRIO		0x02
+} __packed;
+
+
+/* Firmware Download Protocol */
+
+/* Request Types */
+#define GB_FW_DOWNLOAD_TYPE_FIND_FIRMWARE	0x01
+#define GB_FW_DOWNLOAD_TYPE_FETCH_FIRMWARE	0x02
+#define GB_FW_DOWNLOAD_TYPE_RELEASE_FIRMWARE	0x03
+
+#define GB_FIRMWARE_TAG_MAX_SIZE		10
+
+/* firmware download find firmware request/response */
+struct gb_fw_download_find_firmware_request {
+	__u8			firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+} __packed;
+
+struct gb_fw_download_find_firmware_response {
+	__u8			firmware_id;
+	__le32			size;
+} __packed;
+
+/* firmware download fetch firmware request/response */
+struct gb_fw_download_fetch_firmware_request {
+	__u8			firmware_id;
+	__le32			offset;
+	__le32			size;
+} __packed;
+
+struct gb_fw_download_fetch_firmware_response {
+	__u8			data[0];
+} __packed;
+
+/* firmware download release firmware request */
+struct gb_fw_download_release_firmware_request {
+	__u8			firmware_id;
+} __packed;
+/* firmware download release firmware response has no payload */
+
+
+/* Firmware Management Protocol */
+
+/* Request Types */
+#define GB_FW_MGMT_TYPE_INTERFACE_FW_VERSION	0x01
+#define GB_FW_MGMT_TYPE_LOAD_AND_VALIDATE_FW	0x02
+#define GB_FW_MGMT_TYPE_LOADED_FW		0x03
+#define GB_FW_MGMT_TYPE_BACKEND_FW_VERSION	0x04
+#define GB_FW_MGMT_TYPE_BACKEND_FW_UPDATE	0x05
+#define GB_FW_MGMT_TYPE_BACKEND_FW_UPDATED	0x06
+
+#define GB_FW_LOAD_METHOD_UNIPRO		0x01
+#define GB_FW_LOAD_METHOD_INTERNAL		0x02
+
+#define GB_FW_LOAD_STATUS_FAILED		0x00
+#define GB_FW_LOAD_STATUS_UNVALIDATED		0x01
+#define GB_FW_LOAD_STATUS_VALIDATED		0x02
+#define GB_FW_LOAD_STATUS_VALIDATION_FAILED	0x03
+
+#define GB_FW_BACKEND_FW_STATUS_SUCCESS		0x01
+#define GB_FW_BACKEND_FW_STATUS_FAIL_FIND	0x02
+#define GB_FW_BACKEND_FW_STATUS_FAIL_FETCH	0x03
+#define GB_FW_BACKEND_FW_STATUS_FAIL_WRITE	0x04
+#define GB_FW_BACKEND_FW_STATUS_INT		0x05
+#define GB_FW_BACKEND_FW_STATUS_RETRY		0x06
+#define GB_FW_BACKEND_FW_STATUS_NOT_SUPPORTED	0x07
+
+#define GB_FW_BACKEND_VERSION_STATUS_SUCCESS		0x01
+#define GB_FW_BACKEND_VERSION_STATUS_NOT_AVAILABLE	0x02
+#define GB_FW_BACKEND_VERSION_STATUS_NOT_SUPPORTED	0x03
+#define GB_FW_BACKEND_VERSION_STATUS_RETRY		0x04
+#define GB_FW_BACKEND_VERSION_STATUS_FAIL_INT		0x05
+
+/* firmware management interface firmware version request has no payload */
+struct gb_fw_mgmt_interface_fw_version_response {
+	__u8			firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+	__le16			major;
+	__le16			minor;
+} __packed;
+
+/* firmware management load and validate firmware request/response */
+struct gb_fw_mgmt_load_and_validate_fw_request {
+	__u8			request_id;
+	__u8			load_method;
+	__u8			firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+} __packed;
+/* firmware management load and validate firmware response has no payload*/
+
+/* firmware management loaded firmware request */
+struct gb_fw_mgmt_loaded_fw_request {
+	__u8			request_id;
+	__u8			status;
+	__le16			major;
+	__le16			minor;
+} __packed;
+/* firmware management loaded firmware response has no payload */
+
+/* firmware management backend firmware version request/response */
+struct gb_fw_mgmt_backend_fw_version_request {
+	__u8			firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+} __packed;
+
+struct gb_fw_mgmt_backend_fw_version_response {
+	__le16			major;
+	__le16			minor;
+	__u8			status;
+} __packed;
+
+/* firmware management backend firmware update request */
+struct gb_fw_mgmt_backend_fw_update_request {
+	__u8			request_id;
+	__u8			firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+} __packed;
+/* firmware management backend firmware update response has no payload */
+
+/* firmware management backend firmware updated request */
+struct gb_fw_mgmt_backend_fw_updated_request {
+	__u8			request_id;
+	__u8			status;
+} __packed;
+/* firmware management backend firmware updated response has no payload */
+
+
+/* Component Authentication Protocol (CAP) */
+
+/* Request Types */
+#define GB_CAP_TYPE_GET_ENDPOINT_UID	0x01
+#define GB_CAP_TYPE_GET_IMS_CERTIFICATE	0x02
+#define GB_CAP_TYPE_AUTHENTICATE	0x03
+
+/* CAP get endpoint uid request has no payload */
+struct gb_cap_get_endpoint_uid_response {
+	__u8			uid[8];
+} __packed;
+
+/* CAP get endpoint ims certificate request/response */
+struct gb_cap_get_ims_certificate_request {
+	__le32			certificate_class;
+	__le32			certificate_id;
+} __packed;
+
+struct gb_cap_get_ims_certificate_response {
+	__u8			result_code;
+	__u8			certificate[0];
+} __packed;
+
+/* CAP authenticate request/response */
+struct gb_cap_authenticate_request {
+	__le32			auth_type;
+	__u8			uid[8];
+	__u8			challenge[32];
+} __packed;
+
+struct gb_cap_authenticate_response {
+	__u8			result_code;
+	__u8			response[64];
+	__u8			signature[0];
+} __packed;
+
+
+/* Bootrom Protocol */
+
+/* Version of the Greybus bootrom protocol we support */
+#define GB_BOOTROM_VERSION_MAJOR		0x00
+#define GB_BOOTROM_VERSION_MINOR		0x01
+
+/* Greybus bootrom request types */
+#define GB_BOOTROM_TYPE_VERSION			0x01
+#define GB_BOOTROM_TYPE_FIRMWARE_SIZE		0x02
+#define GB_BOOTROM_TYPE_GET_FIRMWARE		0x03
+#define GB_BOOTROM_TYPE_READY_TO_BOOT		0x04
+#define GB_BOOTROM_TYPE_AP_READY		0x05	/* Request with no-payload */
+#define GB_BOOTROM_TYPE_GET_VID_PID		0x06	/* Request with no-payload */
+
+/* Greybus bootrom boot stages */
+#define GB_BOOTROM_BOOT_STAGE_ONE		0x01 /* Reserved for the boot ROM */
+#define GB_BOOTROM_BOOT_STAGE_TWO		0x02 /* Bootrom package to be loaded by the boot ROM */
+#define GB_BOOTROM_BOOT_STAGE_THREE		0x03 /* Module personality package loaded by Stage 2 firmware */
+
+/* Greybus bootrom ready to boot status */
+#define GB_BOOTROM_BOOT_STATUS_INVALID		0x00 /* Firmware blob could not be validated */
+#define GB_BOOTROM_BOOT_STATUS_INSECURE		0x01 /* Firmware blob is valid but insecure */
+#define GB_BOOTROM_BOOT_STATUS_SECURE		0x02 /* Firmware blob is valid and secure */
+
+/* Max bootrom data fetch size in bytes */
+#define GB_BOOTROM_FETCH_MAX			2000
+
+struct gb_bootrom_version_request {
+	__u8	major;
+	__u8	minor;
+} __packed;
+
+struct gb_bootrom_version_response {
+	__u8	major;
+	__u8	minor;
+} __packed;
+
+/* Bootrom protocol firmware size request/response */
+struct gb_bootrom_firmware_size_request {
+	__u8			stage;
+} __packed;
+
+struct gb_bootrom_firmware_size_response {
+	__le32			size;
+} __packed;
+
+/* Bootrom protocol get firmware request/response */
+struct gb_bootrom_get_firmware_request {
+	__le32			offset;
+	__le32			size;
+} __packed;
+
+struct gb_bootrom_get_firmware_response {
+	__u8			data[0];
+} __packed;
+
+/* Bootrom protocol Ready to boot request */
+struct gb_bootrom_ready_to_boot_request {
+	__u8			status;
+} __packed;
+/* Bootrom protocol Ready to boot response has no payload */
+
+/* Bootrom protocol get VID/PID request has no payload */
+struct gb_bootrom_get_vid_pid_response {
+	__le32			vendor_id;
+	__le32			product_id;
+} __packed;
+
+
+/* Power Supply */
+
+/* Greybus power supply request types */
+#define GB_POWER_SUPPLY_TYPE_GET_SUPPLIES		0x02
+#define GB_POWER_SUPPLY_TYPE_GET_DESCRIPTION		0x03
+#define GB_POWER_SUPPLY_TYPE_GET_PROP_DESCRIPTORS	0x04
+#define GB_POWER_SUPPLY_TYPE_GET_PROPERTY		0x05
+#define GB_POWER_SUPPLY_TYPE_SET_PROPERTY		0x06
+#define GB_POWER_SUPPLY_TYPE_EVENT			0x07
+
+/* Greybus power supply battery technologies types */
+#define GB_POWER_SUPPLY_TECH_UNKNOWN			0x0000
+#define GB_POWER_SUPPLY_TECH_NiMH			0x0001
+#define GB_POWER_SUPPLY_TECH_LION			0x0002
+#define GB_POWER_SUPPLY_TECH_LIPO			0x0003
+#define GB_POWER_SUPPLY_TECH_LiFe			0x0004
+#define GB_POWER_SUPPLY_TECH_NiCd			0x0005
+#define GB_POWER_SUPPLY_TECH_LiMn			0x0006
+
+/* Greybus power supply types */
+#define GB_POWER_SUPPLY_UNKNOWN_TYPE			0x0000
+#define GB_POWER_SUPPLY_BATTERY_TYPE			0x0001
+#define GB_POWER_SUPPLY_UPS_TYPE			0x0002
+#define GB_POWER_SUPPLY_MAINS_TYPE			0x0003
+#define GB_POWER_SUPPLY_USB_TYPE			0x0004
+#define GB_POWER_SUPPLY_USB_DCP_TYPE			0x0005
+#define GB_POWER_SUPPLY_USB_CDP_TYPE			0x0006
+#define GB_POWER_SUPPLY_USB_ACA_TYPE			0x0007
+
+/* Greybus power supply health values */
+#define GB_POWER_SUPPLY_HEALTH_UNKNOWN			0x0000
+#define GB_POWER_SUPPLY_HEALTH_GOOD			0x0001
+#define GB_POWER_SUPPLY_HEALTH_OVERHEAT			0x0002
+#define GB_POWER_SUPPLY_HEALTH_DEAD			0x0003
+#define GB_POWER_SUPPLY_HEALTH_OVERVOLTAGE		0x0004
+#define GB_POWER_SUPPLY_HEALTH_UNSPEC_FAILURE		0x0005
+#define GB_POWER_SUPPLY_HEALTH_COLD			0x0006
+#define GB_POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE	0x0007
+#define GB_POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE	0x0008
+
+/* Greybus power supply status values */
+#define GB_POWER_SUPPLY_STATUS_UNKNOWN			0x0000
+#define GB_POWER_SUPPLY_STATUS_CHARGING			0x0001
+#define GB_POWER_SUPPLY_STATUS_DISCHARGING		0x0002
+#define GB_POWER_SUPPLY_STATUS_NOT_CHARGING		0x0003
+#define GB_POWER_SUPPLY_STATUS_FULL			0x0004
+
+/* Greybus power supply capacity level values */
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN		0x0000
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL		0x0001
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_LOW		0x0002
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_NORMAL		0x0003
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_HIGH		0x0004
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_FULL		0x0005
+
+/* Greybus power supply scope values */
+#define GB_POWER_SUPPLY_SCOPE_UNKNOWN			0x0000
+#define GB_POWER_SUPPLY_SCOPE_SYSTEM			0x0001
+#define GB_POWER_SUPPLY_SCOPE_DEVICE			0x0002
+
+struct gb_power_supply_get_supplies_response {
+	__u8	supplies_count;
+} __packed;
+
+struct gb_power_supply_get_description_request {
+	__u8	psy_id;
+} __packed;
+
+struct gb_power_supply_get_description_response {
+	__u8	manufacturer[32];
+	__u8	model[32];
+	__u8	serial_number[32];
+	__le16	type;
+	__u8	properties_count;
+} __packed;
+
+struct gb_power_supply_props_desc {
+	__u8	property;
+#define GB_POWER_SUPPLY_PROP_STATUS				0x00
+#define GB_POWER_SUPPLY_PROP_CHARGE_TYPE			0x01
+#define GB_POWER_SUPPLY_PROP_HEALTH				0x02
+#define GB_POWER_SUPPLY_PROP_PRESENT				0x03
+#define GB_POWER_SUPPLY_PROP_ONLINE				0x04
+#define GB_POWER_SUPPLY_PROP_AUTHENTIC				0x05
+#define GB_POWER_SUPPLY_PROP_TECHNOLOGY				0x06
+#define GB_POWER_SUPPLY_PROP_CYCLE_COUNT			0x07
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_MAX			0x08
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_MIN			0x09
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN			0x0A
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN			0x0B
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_NOW			0x0C
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_AVG			0x0D
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_OCV			0x0E
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_BOOT			0x0F
+#define GB_POWER_SUPPLY_PROP_CURRENT_MAX			0x10
+#define GB_POWER_SUPPLY_PROP_CURRENT_NOW			0x11
+#define GB_POWER_SUPPLY_PROP_CURRENT_AVG			0x12
+#define GB_POWER_SUPPLY_PROP_CURRENT_BOOT			0x13
+#define GB_POWER_SUPPLY_PROP_POWER_NOW				0x14
+#define GB_POWER_SUPPLY_PROP_POWER_AVG				0x15
+#define GB_POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN			0x16
+#define GB_POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN		0x17
+#define GB_POWER_SUPPLY_PROP_CHARGE_FULL			0x18
+#define GB_POWER_SUPPLY_PROP_CHARGE_EMPTY			0x19
+#define GB_POWER_SUPPLY_PROP_CHARGE_NOW				0x1A
+#define GB_POWER_SUPPLY_PROP_CHARGE_AVG				0x1B
+#define GB_POWER_SUPPLY_PROP_CHARGE_COUNTER			0x1C
+#define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT		0x1D
+#define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX	0x1E
+#define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE		0x1F
+#define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX	0x20
+#define GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT		0x21
+#define GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX		0x22
+#define GB_POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT		0x23
+#define GB_POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN			0x24
+#define GB_POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN		0x25
+#define GB_POWER_SUPPLY_PROP_ENERGY_FULL			0x26
+#define GB_POWER_SUPPLY_PROP_ENERGY_EMPTY			0x27
+#define GB_POWER_SUPPLY_PROP_ENERGY_NOW				0x28
+#define GB_POWER_SUPPLY_PROP_ENERGY_AVG				0x29
+#define GB_POWER_SUPPLY_PROP_CAPACITY				0x2A
+#define GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN			0x2B
+#define GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX			0x2C
+#define GB_POWER_SUPPLY_PROP_CAPACITY_LEVEL			0x2D
+#define GB_POWER_SUPPLY_PROP_TEMP				0x2E
+#define GB_POWER_SUPPLY_PROP_TEMP_MAX				0x2F
+#define GB_POWER_SUPPLY_PROP_TEMP_MIN				0x30
+#define GB_POWER_SUPPLY_PROP_TEMP_ALERT_MIN			0x31
+#define GB_POWER_SUPPLY_PROP_TEMP_ALERT_MAX			0x32
+#define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT			0x33
+#define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN		0x34
+#define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX		0x35
+#define GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW			0x36
+#define GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG			0x37
+#define GB_POWER_SUPPLY_PROP_TIME_TO_FULL_NOW			0x38
+#define GB_POWER_SUPPLY_PROP_TIME_TO_FULL_AVG			0x39
+#define GB_POWER_SUPPLY_PROP_TYPE				0x3A
+#define GB_POWER_SUPPLY_PROP_SCOPE				0x3B
+#define GB_POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT		0x3C
+#define GB_POWER_SUPPLY_PROP_CALIBRATE				0x3D
+	__u8	is_writeable;
+} __packed;
+
+struct gb_power_supply_get_property_descriptors_request {
+	__u8	psy_id;
+} __packed;
+
+struct gb_power_supply_get_property_descriptors_response {
+	__u8	properties_count;
+	struct gb_power_supply_props_desc props[];
+} __packed;
+
+struct gb_power_supply_get_property_request {
+	__u8	psy_id;
+	__u8	property;
+} __packed;
+
+struct gb_power_supply_get_property_response {
+	__le32	prop_val;
+};
+
+struct gb_power_supply_set_property_request {
+	__u8	psy_id;
+	__u8	property;
+	__le32	prop_val;
+} __packed;
+
+struct gb_power_supply_event_request {
+	__u8	psy_id;
+	__u8	event;
+#define GB_POWER_SUPPLY_UPDATE		0x01
+} __packed;
+
+
+/* HID */
+
+/* Greybus HID operation types */
+#define GB_HID_TYPE_GET_DESC		0x02
+#define GB_HID_TYPE_GET_REPORT_DESC	0x03
+#define GB_HID_TYPE_PWR_ON		0x04
+#define GB_HID_TYPE_PWR_OFF		0x05
+#define GB_HID_TYPE_GET_REPORT		0x06
+#define GB_HID_TYPE_SET_REPORT		0x07
+#define GB_HID_TYPE_IRQ_EVENT		0x08
+
+/* Report type */
+#define GB_HID_INPUT_REPORT		0
+#define GB_HID_OUTPUT_REPORT		1
+#define GB_HID_FEATURE_REPORT		2
+
+/* Different request/response structures */
+/* HID get descriptor response */
+struct gb_hid_desc_response {
+	__u8				bLength;
+	__le16				wReportDescLength;
+	__le16				bcdHID;
+	__le16				wProductID;
+	__le16				wVendorID;
+	__u8				bCountryCode;
+} __packed;
+
+/* HID get report request/response */
+struct gb_hid_get_report_request {
+	__u8				report_type;
+	__u8				report_id;
+} __packed;
+
+/* HID set report request */
+struct gb_hid_set_report_request {
+	__u8				report_type;
+	__u8				report_id;
+	__u8				report[0];
+} __packed;
+
+/* HID input report request, via interrupt pipe */
+struct gb_hid_input_report_request {
+	__u8				report[0];
+} __packed;
+
+
+/* I2C */
+
+/* Greybus i2c request types */
+#define GB_I2C_TYPE_FUNCTIONALITY	0x02
+#define GB_I2C_TYPE_TRANSFER		0x05
+
+/* functionality request has no payload */
+struct gb_i2c_functionality_response {
+	__le32	functionality;
+} __packed;
+
+/*
+ * Outgoing data immediately follows the op count and ops array.
+ * The data for each write (master -> slave) op in the array is sent
+ * in order, with no (e.g. pad) bytes separating them.
+ *
+ * Short reads cause the entire transfer request to fail So response
+ * payload consists only of bytes read, and the number of bytes is
+ * exactly what was specified in the corresponding op.  Like
+ * outgoing data, the incoming data is in order and contiguous.
+ */
+struct gb_i2c_transfer_op {
+	__le16	addr;
+	__le16	flags;
+	__le16	size;
+} __packed;
+
+struct gb_i2c_transfer_request {
+	__le16				op_count;
+	struct gb_i2c_transfer_op	ops[0];		/* op_count of these */
+} __packed;
+struct gb_i2c_transfer_response {
+	__u8				data[0];	/* inbound data */
+} __packed;
+
+
+/* GPIO */
+
+/* Greybus GPIO request types */
+#define GB_GPIO_TYPE_LINE_COUNT		0x02
+#define GB_GPIO_TYPE_ACTIVATE		0x03
+#define GB_GPIO_TYPE_DEACTIVATE		0x04
+#define GB_GPIO_TYPE_GET_DIRECTION	0x05
+#define GB_GPIO_TYPE_DIRECTION_IN	0x06
+#define GB_GPIO_TYPE_DIRECTION_OUT	0x07
+#define GB_GPIO_TYPE_GET_VALUE		0x08
+#define GB_GPIO_TYPE_SET_VALUE		0x09
+#define GB_GPIO_TYPE_SET_DEBOUNCE	0x0a
+#define GB_GPIO_TYPE_IRQ_TYPE		0x0b
+#define GB_GPIO_TYPE_IRQ_MASK		0x0c
+#define GB_GPIO_TYPE_IRQ_UNMASK		0x0d
+#define GB_GPIO_TYPE_IRQ_EVENT		0x0e
+
+#define GB_GPIO_IRQ_TYPE_NONE		0x00
+#define GB_GPIO_IRQ_TYPE_EDGE_RISING	0x01
+#define GB_GPIO_IRQ_TYPE_EDGE_FALLING	0x02
+#define GB_GPIO_IRQ_TYPE_EDGE_BOTH	0x03
+#define GB_GPIO_IRQ_TYPE_LEVEL_HIGH	0x04
+#define GB_GPIO_IRQ_TYPE_LEVEL_LOW	0x08
+
+/* line count request has no payload */
+struct gb_gpio_line_count_response {
+	__u8	count;
+} __packed;
+
+struct gb_gpio_activate_request {
+	__u8	which;
+} __packed;
+/* activate response has no payload */
+
+struct gb_gpio_deactivate_request {
+	__u8	which;
+} __packed;
+/* deactivate response has no payload */
+
+struct gb_gpio_get_direction_request {
+	__u8	which;
+} __packed;
+struct gb_gpio_get_direction_response {
+	__u8	direction;
+} __packed;
+
+struct gb_gpio_direction_in_request {
+	__u8	which;
+} __packed;
+/* direction in response has no payload */
+
+struct gb_gpio_direction_out_request {
+	__u8	which;
+	__u8	value;
+} __packed;
+/* direction out response has no payload */
+
+struct gb_gpio_get_value_request {
+	__u8	which;
+} __packed;
+struct gb_gpio_get_value_response {
+	__u8	value;
+} __packed;
+
+struct gb_gpio_set_value_request {
+	__u8	which;
+	__u8	value;
+} __packed;
+/* set value response has no payload */
+
+struct gb_gpio_set_debounce_request {
+	__u8	which;
+	__le16	usec;
+} __packed;
+/* debounce response has no payload */
+
+struct gb_gpio_irq_type_request {
+	__u8	which;
+	__u8	type;
+} __packed;
+/* irq type response has no payload */
+
+struct gb_gpio_irq_mask_request {
+	__u8	which;
+} __packed;
+/* irq mask response has no payload */
+
+struct gb_gpio_irq_unmask_request {
+	__u8	which;
+} __packed;
+/* irq unmask response has no payload */
+
+/* irq event requests originate on another module and are handled on the AP */
+struct gb_gpio_irq_event_request {
+	__u8	which;
+} __packed;
+/* irq event has no response */
+
+
+/* PWM */
+
+/* Greybus PWM operation types */
+#define GB_PWM_TYPE_PWM_COUNT		0x02
+#define GB_PWM_TYPE_ACTIVATE		0x03
+#define GB_PWM_TYPE_DEACTIVATE		0x04
+#define GB_PWM_TYPE_CONFIG		0x05
+#define GB_PWM_TYPE_POLARITY		0x06
+#define GB_PWM_TYPE_ENABLE		0x07
+#define GB_PWM_TYPE_DISABLE		0x08
+
+/* pwm count request has no payload */
+struct gb_pwm_count_response {
+	__u8	count;
+} __packed;
+
+struct gb_pwm_activate_request {
+	__u8	which;
+} __packed;
+
+struct gb_pwm_deactivate_request {
+	__u8	which;
+} __packed;
+
+struct gb_pwm_config_request {
+	__u8	which;
+	__le32	duty;
+	__le32	period;
+} __packed;
+
+struct gb_pwm_polarity_request {
+	__u8	which;
+	__u8	polarity;
+} __packed;
+
+struct gb_pwm_enable_request {
+	__u8	which;
+} __packed;
+
+struct gb_pwm_disable_request {
+	__u8	which;
+} __packed;
+
+/* SPI */
+
+/* Should match up with modes in linux/spi/spi.h */
+#define GB_SPI_MODE_CPHA		0x01		/* clock phase */
+#define GB_SPI_MODE_CPOL		0x02		/* clock polarity */
+#define GB_SPI_MODE_MODE_0		(0|0)		/* (original MicroWire) */
+#define GB_SPI_MODE_MODE_1		(0|GB_SPI_MODE_CPHA)
+#define GB_SPI_MODE_MODE_2		(GB_SPI_MODE_CPOL|0)
+#define GB_SPI_MODE_MODE_3		(GB_SPI_MODE_CPOL|GB_SPI_MODE_CPHA)
+#define GB_SPI_MODE_CS_HIGH		0x04		/* chipselect active high? */
+#define GB_SPI_MODE_LSB_FIRST		0x08		/* per-word bits-on-wire */
+#define GB_SPI_MODE_3WIRE		0x10		/* SI/SO signals shared */
+#define GB_SPI_MODE_LOOP		0x20		/* loopback mode */
+#define GB_SPI_MODE_NO_CS		0x40		/* 1 dev/bus, no chipselect */
+#define GB_SPI_MODE_READY		0x80		/* slave pulls low to pause */
+
+/* Should match up with flags in linux/spi/spi.h */
+#define GB_SPI_FLAG_HALF_DUPLEX		BIT(0)		/* can't do full duplex */
+#define GB_SPI_FLAG_NO_RX		BIT(1)		/* can't do buffer read */
+#define GB_SPI_FLAG_NO_TX		BIT(2)		/* can't do buffer write */
+
+/* Greybus spi operation types */
+#define GB_SPI_TYPE_MASTER_CONFIG	0x02
+#define GB_SPI_TYPE_DEVICE_CONFIG	0x03
+#define GB_SPI_TYPE_TRANSFER		0x04
+
+/* mode request has no payload */
+struct gb_spi_master_config_response {
+	__le32	bits_per_word_mask;
+	__le32	min_speed_hz;
+	__le32	max_speed_hz;
+	__le16	mode;
+	__le16	flags;
+	__u8	num_chipselect;
+} __packed;
+
+struct gb_spi_device_config_request {
+	__u8	chip_select;
+} __packed;
+
+struct gb_spi_device_config_response {
+	__le16	mode;
+	__u8	bits_per_word;
+	__le32	max_speed_hz;
+	__u8	device_type;
+#define GB_SPI_SPI_DEV		0x00
+#define GB_SPI_SPI_NOR		0x01
+#define GB_SPI_SPI_MODALIAS	0x02
+	__u8	name[32];
+} __packed;
+
+/**
+ * struct gb_spi_transfer - a read/write buffer pair
+ * @speed_hz: Select a speed other than the device default for this transfer. If
+ *	0 the default (from @spi_device) is used.
+ * @len: size of rx and tx buffers (in bytes)
+ * @delay_usecs: microseconds to delay after this transfer before (optionally)
+ * 	changing the chipselect status, then starting the next transfer or
+ * 	completing this spi_message.
+ * @cs_change: affects chipselect after this transfer completes
+ * @bits_per_word: select a bits_per_word other than the device default for this
+ *	transfer. If 0 the default (from @spi_device) is used.
+ */
+struct gb_spi_transfer {
+	__le32		speed_hz;
+	__le32		len;
+	__le16		delay_usecs;
+	__u8		cs_change;
+	__u8		bits_per_word;
+	__u8		xfer_flags;
+#define GB_SPI_XFER_READ	0x01
+#define GB_SPI_XFER_WRITE	0x02
+#define GB_SPI_XFER_INPROGRESS	0x04
+} __packed;
+
+struct gb_spi_transfer_request {
+	__u8			chip_select;	/* of the spi device */
+	__u8			mode;		/* of the spi device */
+	__le16			count;
+	struct gb_spi_transfer	transfers[0];	/* count of these */
+} __packed;
+
+struct gb_spi_transfer_response {
+	__u8			data[0];	/* inbound data */
+} __packed;
+
+/* Version of the Greybus SVC protocol we support */
+#define GB_SVC_VERSION_MAJOR		0x00
+#define GB_SVC_VERSION_MINOR		0x01
+
+/* Greybus SVC request types */
+#define GB_SVC_TYPE_PROTOCOL_VERSION		0x01
+#define GB_SVC_TYPE_SVC_HELLO			0x02
+#define GB_SVC_TYPE_INTF_DEVICE_ID		0x03
+#define GB_SVC_TYPE_INTF_RESET			0x06
+#define GB_SVC_TYPE_CONN_CREATE			0x07
+#define GB_SVC_TYPE_CONN_DESTROY		0x08
+#define GB_SVC_TYPE_DME_PEER_GET		0x09
+#define GB_SVC_TYPE_DME_PEER_SET		0x0a
+#define GB_SVC_TYPE_ROUTE_CREATE		0x0b
+#define GB_SVC_TYPE_ROUTE_DESTROY		0x0c
+#define GB_SVC_TYPE_TIMESYNC_ENABLE		0x0d
+#define GB_SVC_TYPE_TIMESYNC_DISABLE		0x0e
+#define GB_SVC_TYPE_TIMESYNC_AUTHORITATIVE	0x0f
+#define GB_SVC_TYPE_INTF_SET_PWRM		0x10
+#define GB_SVC_TYPE_INTF_EJECT			0x11
+#define GB_SVC_TYPE_PING			0x13
+#define GB_SVC_TYPE_PWRMON_RAIL_COUNT_GET	0x14
+#define GB_SVC_TYPE_PWRMON_RAIL_NAMES_GET	0x15
+#define GB_SVC_TYPE_PWRMON_SAMPLE_GET		0x16
+#define GB_SVC_TYPE_PWRMON_INTF_SAMPLE_GET	0x17
+#define GB_SVC_TYPE_TIMESYNC_WAKE_PINS_ACQUIRE	0x18
+#define GB_SVC_TYPE_TIMESYNC_WAKE_PINS_RELEASE	0x19
+#define GB_SVC_TYPE_TIMESYNC_PING		0x1a
+#define GB_SVC_TYPE_MODULE_INSERTED		0x1f
+#define GB_SVC_TYPE_MODULE_REMOVED		0x20
+#define GB_SVC_TYPE_INTF_VSYS_ENABLE		0x21
+#define GB_SVC_TYPE_INTF_VSYS_DISABLE		0x22
+#define GB_SVC_TYPE_INTF_REFCLK_ENABLE		0x23
+#define GB_SVC_TYPE_INTF_REFCLK_DISABLE		0x24
+#define GB_SVC_TYPE_INTF_UNIPRO_ENABLE		0x25
+#define GB_SVC_TYPE_INTF_UNIPRO_DISABLE		0x26
+#define GB_SVC_TYPE_INTF_ACTIVATE		0x27
+#define GB_SVC_TYPE_INTF_RESUME			0x28
+#define GB_SVC_TYPE_INTF_MAILBOX_EVENT		0x29
+#define GB_SVC_TYPE_INTF_OOPS			0x2a
+
+/* Greybus SVC protocol status values */
+#define GB_SVC_OP_SUCCESS			0x00
+#define GB_SVC_OP_UNKNOWN_ERROR			0x01
+#define GB_SVC_INTF_NOT_DETECTED		0x02
+#define GB_SVC_INTF_NO_UPRO_LINK		0x03
+#define GB_SVC_INTF_UPRO_NOT_DOWN		0x04
+#define GB_SVC_INTF_UPRO_NOT_HIBERNATED		0x05
+#define GB_SVC_INTF_NO_V_SYS			0x06
+#define GB_SVC_INTF_V_CHG			0x07
+#define GB_SVC_INTF_WAKE_BUSY			0x08
+#define GB_SVC_INTF_NO_REFCLK			0x09
+#define GB_SVC_INTF_RELEASING			0x0a
+#define GB_SVC_INTF_NO_ORDER			0x0b
+#define GB_SVC_INTF_MBOX_SET			0x0c
+#define GB_SVC_INTF_BAD_MBOX			0x0d
+#define GB_SVC_INTF_OP_TIMEOUT			0x0e
+#define GB_SVC_PWRMON_OP_NOT_PRESENT		0x0f
+
+struct gb_svc_version_request {
+	__u8	major;
+	__u8	minor;
+} __packed;
+
+struct gb_svc_version_response {
+	__u8	major;
+	__u8	minor;
+} __packed;
+
+/* SVC protocol hello request */
+struct gb_svc_hello_request {
+	__le16			endo_id;
+	__u8			interface_id;
+} __packed;
+/* hello response has no payload */
+
+struct gb_svc_intf_device_id_request {
+	__u8	intf_id;
+	__u8	device_id;
+} __packed;
+/* device id response has no payload */
+
+struct gb_svc_intf_reset_request {
+	__u8	intf_id;
+} __packed;
+/* interface reset response has no payload */
+
+struct gb_svc_intf_eject_request {
+	__u8	intf_id;
+} __packed;
+/* interface eject response has no payload */
+
+struct gb_svc_conn_create_request {
+	__u8	intf1_id;
+	__le16	cport1_id;
+	__u8	intf2_id;
+	__le16	cport2_id;
+	__u8	tc;
+	__u8	flags;
+} __packed;
+/* connection create response has no payload */
+
+struct gb_svc_conn_destroy_request {
+	__u8	intf1_id;
+	__le16	cport1_id;
+	__u8	intf2_id;
+	__le16	cport2_id;
+} __packed;
+/* connection destroy response has no payload */
+
+struct gb_svc_dme_peer_get_request {
+	__u8	intf_id;
+	__le16	attr;
+	__le16	selector;
+} __packed;
+
+struct gb_svc_dme_peer_get_response {
+	__le16	result_code;
+	__le32	attr_value;
+} __packed;
+
+struct gb_svc_dme_peer_set_request {
+	__u8	intf_id;
+	__le16	attr;
+	__le16	selector;
+	__le32	value;
+} __packed;
+
+struct gb_svc_dme_peer_set_response {
+	__le16	result_code;
+} __packed;
+
+/* Greybus init-status values, currently retrieved using DME peer gets. */
+#define GB_INIT_SPI_BOOT_STARTED			0x02
+#define GB_INIT_TRUSTED_SPI_BOOT_FINISHED		0x03
+#define GB_INIT_UNTRUSTED_SPI_BOOT_FINISHED		0x04
+#define GB_INIT_BOOTROM_UNIPRO_BOOT_STARTED		0x06
+#define GB_INIT_BOOTROM_FALLBACK_UNIPRO_BOOT_STARTED	0x09
+#define GB_INIT_S2_LOADER_BOOT_STARTED			0x0D
+
+struct gb_svc_route_create_request {
+	__u8	intf1_id;
+	__u8	dev1_id;
+	__u8	intf2_id;
+	__u8	dev2_id;
+} __packed;
+/* route create response has no payload */
+
+struct gb_svc_route_destroy_request {
+	__u8	intf1_id;
+	__u8	intf2_id;
+} __packed;
+/* route destroy response has no payload */
+
+/* used for svc_intf_vsys_{enable,disable} */
+struct gb_svc_intf_vsys_request {
+	__u8	intf_id;
+} __packed;
+
+struct gb_svc_intf_vsys_response {
+	__u8	result_code;
+#define GB_SVC_INTF_VSYS_OK				0x00
+	/* 0x01 is reserved */
+#define GB_SVC_INTF_VSYS_FAIL				0x02
+} __packed;
+
+/* used for svc_intf_refclk_{enable,disable} */
+struct gb_svc_intf_refclk_request {
+	__u8	intf_id;
+} __packed;
+
+struct gb_svc_intf_refclk_response {
+	__u8	result_code;
+#define GB_SVC_INTF_REFCLK_OK				0x00
+	/* 0x01 is reserved */
+#define GB_SVC_INTF_REFCLK_FAIL				0x02
+} __packed;
+
+/* used for svc_intf_unipro_{enable,disable} */
+struct gb_svc_intf_unipro_request {
+	__u8	intf_id;
+} __packed;
+
+struct gb_svc_intf_unipro_response {
+	__u8	result_code;
+#define GB_SVC_INTF_UNIPRO_OK				0x00
+	/* 0x01 is reserved */
+#define GB_SVC_INTF_UNIPRO_FAIL				0x02
+#define GB_SVC_INTF_UNIPRO_NOT_OFF			0x03
+} __packed;
+
+struct gb_svc_timesync_enable_request {
+	__u8	count;
+	__le64	frame_time;
+	__le32	strobe_delay;
+	__le32	refclk;
+} __packed;
+/* timesync enable response has no payload */
+
+/* timesync authoritative request has no payload */
+struct gb_svc_timesync_authoritative_response {
+	__le64	frame_time[GB_TIMESYNC_MAX_STROBES];
+};
+
+struct gb_svc_timesync_wake_pins_acquire_request {
+	__le32	strobe_mask;
+};
+
+/* timesync wake pins acquire response has no payload */
+
+/* timesync wake pins release request has no payload */
+/* timesync wake pins release response has no payload */
+
+/* timesync svc ping request has no payload */
+struct gb_svc_timesync_ping_response {
+	__le64	frame_time;
+} __packed;
+
+#define GB_SVC_UNIPRO_FAST_MODE			0x01
+#define GB_SVC_UNIPRO_SLOW_MODE			0x02
+#define GB_SVC_UNIPRO_FAST_AUTO_MODE		0x04
+#define GB_SVC_UNIPRO_SLOW_AUTO_MODE		0x05
+#define GB_SVC_UNIPRO_MODE_UNCHANGED		0x07
+#define GB_SVC_UNIPRO_HIBERNATE_MODE		0x11
+#define GB_SVC_UNIPRO_OFF_MODE			0x12
+
+#define GB_SVC_SMALL_AMPLITUDE          0x01
+#define GB_SVC_LARGE_AMPLITUDE          0x02
+
+#define GB_SVC_NO_DE_EMPHASIS           0x00
+#define GB_SVC_SMALL_DE_EMPHASIS        0x01
+#define GB_SVC_LARGE_DE_EMPHASIS        0x02
+
+#define GB_SVC_PWRM_RXTERMINATION		0x01
+#define GB_SVC_PWRM_TXTERMINATION		0x02
+#define GB_SVC_PWRM_LINE_RESET			0x04
+#define GB_SVC_PWRM_SCRAMBLING			0x20
+
+#define GB_SVC_PWRM_QUIRK_HSSER			0x00000001
+
+#define GB_SVC_UNIPRO_HS_SERIES_A		0x01
+#define GB_SVC_UNIPRO_HS_SERIES_B		0x02
+
+#define GB_SVC_SETPWRM_PWR_OK           0x00
+#define GB_SVC_SETPWRM_PWR_LOCAL        0x01
+#define GB_SVC_SETPWRM_PWR_REMOTE       0x02
+#define GB_SVC_SETPWRM_PWR_BUSY         0x03
+#define GB_SVC_SETPWRM_PWR_ERROR_CAP    0x04
+#define GB_SVC_SETPWRM_PWR_FATAL_ERROR  0x05
+
+struct gb_svc_l2_timer_cfg {
+	__le16 tsb_fc0_protection_timeout;
+	__le16 tsb_tc0_replay_timeout;
+	__le16 tsb_afc0_req_timeout;
+	__le16 tsb_fc1_protection_timeout;
+	__le16 tsb_tc1_replay_timeout;
+	__le16 tsb_afc1_req_timeout;
+	__le16 reserved_for_tc2[3];
+	__le16 reserved_for_tc3[3];
+} __packed;
+
+struct gb_svc_intf_set_pwrm_request {
+	__u8	intf_id;
+	__u8	hs_series;
+	__u8	tx_mode;
+	__u8	tx_gear;
+	__u8	tx_nlanes;
+	__u8	tx_amplitude;
+	__u8	tx_hs_equalizer;
+	__u8	rx_mode;
+	__u8	rx_gear;
+	__u8	rx_nlanes;
+	__u8	flags;
+	__le32	quirks;
+	struct gb_svc_l2_timer_cfg local_l2timerdata, remote_l2timerdata;
+} __packed;
+
+struct gb_svc_intf_set_pwrm_response {
+	__u8	result_code;
+} __packed;
+
+struct gb_svc_key_event_request {
+	__le16  key_code;
+#define GB_KEYCODE_ARA         0x00
+
+	__u8    key_event;
+#define GB_SVC_KEY_RELEASED    0x00
+#define GB_SVC_KEY_PRESSED     0x01
+} __packed;
+
+#define GB_SVC_PWRMON_MAX_RAIL_COUNT		254
+
+struct gb_svc_pwrmon_rail_count_get_response {
+	__u8	rail_count;
+} __packed;
+
+#define GB_SVC_PWRMON_RAIL_NAME_BUFSIZE		32
+
+struct gb_svc_pwrmon_rail_names_get_response {
+	__u8	status;
+	__u8	name[0][GB_SVC_PWRMON_RAIL_NAME_BUFSIZE];
+} __packed;
+
+#define GB_SVC_PWRMON_TYPE_CURR			0x01
+#define GB_SVC_PWRMON_TYPE_VOL			0x02
+#define GB_SVC_PWRMON_TYPE_PWR			0x03
+
+#define GB_SVC_PWRMON_GET_SAMPLE_OK		0x00
+#define GB_SVC_PWRMON_GET_SAMPLE_INVAL		0x01
+#define GB_SVC_PWRMON_GET_SAMPLE_NOSUPP		0x02
+#define GB_SVC_PWRMON_GET_SAMPLE_HWERR		0x03
+
+struct gb_svc_pwrmon_sample_get_request {
+	__u8	rail_id;
+	__u8	measurement_type;
+} __packed;
+
+struct gb_svc_pwrmon_sample_get_response {
+	__u8	result;
+	__le32	measurement;
+} __packed;
+
+struct gb_svc_pwrmon_intf_sample_get_request {
+	__u8	intf_id;
+	__u8	measurement_type;
+} __packed;
+
+struct gb_svc_pwrmon_intf_sample_get_response {
+	__u8	result;
+	__le32	measurement;
+} __packed;
+
+#define GB_SVC_MODULE_INSERTED_FLAG_NO_PRIMARY	0x0001
+
+struct gb_svc_module_inserted_request {
+	__u8	primary_intf_id;
+	__u8	intf_count;
+	__le16	flags;
+} __packed;
+/* module_inserted response has no payload */
+
+struct gb_svc_module_removed_request {
+	__u8	primary_intf_id;
+} __packed;
+/* module_removed response has no payload */
+
+struct gb_svc_intf_activate_request {
+	__u8	intf_id;
+} __packed;
+
+#define GB_SVC_INTF_TYPE_UNKNOWN		0x00
+#define GB_SVC_INTF_TYPE_DUMMY			0x01
+#define GB_SVC_INTF_TYPE_UNIPRO			0x02
+#define GB_SVC_INTF_TYPE_GREYBUS		0x03
+
+struct gb_svc_intf_activate_response {
+	__u8	status;
+	__u8	intf_type;
+} __packed;
+
+struct gb_svc_intf_resume_request {
+	__u8	intf_id;
+} __packed;
+
+struct gb_svc_intf_resume_response {
+	__u8	status;
+} __packed;
+
+#define GB_SVC_INTF_MAILBOX_NONE		0x00
+#define GB_SVC_INTF_MAILBOX_AP			0x01
+#define GB_SVC_INTF_MAILBOX_GREYBUS		0x02
+
+struct gb_svc_intf_mailbox_event_request {
+	__u8	intf_id;
+	__le16	result_code;
+	__le32	mailbox;
+} __packed;
+/* intf_mailbox_event response has no payload */
+
+struct gb_svc_intf_oops_request {
+	__u8	intf_id;
+	__u8	reason;
+} __packed;
+/* intf_oops response has no payload */
+
+
+/* RAW */
+
+/* Greybus raw request types */
+#define	GB_RAW_TYPE_SEND			0x02
+
+struct gb_raw_send_request {
+	__le32	len;
+	__u8	data[0];
+} __packed;
+
+
+/* UART */
+
+/* Greybus UART operation types */
+#define GB_UART_TYPE_SEND_DATA			0x02
+#define GB_UART_TYPE_RECEIVE_DATA		0x03	/* Unsolicited data */
+#define GB_UART_TYPE_SET_LINE_CODING		0x04
+#define GB_UART_TYPE_SET_CONTROL_LINE_STATE	0x05
+#define GB_UART_TYPE_SEND_BREAK			0x06
+#define GB_UART_TYPE_SERIAL_STATE		0x07	/* Unsolicited data */
+#define GB_UART_TYPE_RECEIVE_CREDITS		0x08
+#define GB_UART_TYPE_FLUSH_FIFOS		0x09
+
+/* Represents data from AP -> Module */
+struct gb_uart_send_data_request {
+	__le16	size;
+	__u8	data[0];
+} __packed;
+
+/* recv-data-request flags */
+#define GB_UART_RECV_FLAG_FRAMING		0x01	/* Framing error */
+#define GB_UART_RECV_FLAG_PARITY		0x02	/* Parity error */
+#define GB_UART_RECV_FLAG_OVERRUN		0x04	/* Overrun error */
+#define GB_UART_RECV_FLAG_BREAK			0x08	/* Break */
+
+/* Represents data from Module -> AP */
+struct gb_uart_recv_data_request {
+	__le16	size;
+	__u8	flags;
+	__u8	data[0];
+} __packed;
+
+struct gb_uart_receive_credits_request {
+	__le16  count;
+} __packed;
+
+struct gb_uart_set_line_coding_request {
+	__le32	rate;
+	__u8	format;
+#define GB_SERIAL_1_STOP_BITS			0
+#define GB_SERIAL_1_5_STOP_BITS			1
+#define GB_SERIAL_2_STOP_BITS			2
+
+	__u8	parity;
+#define GB_SERIAL_NO_PARITY			0
+#define GB_SERIAL_ODD_PARITY			1
+#define GB_SERIAL_EVEN_PARITY			2
+#define GB_SERIAL_MARK_PARITY			3
+#define GB_SERIAL_SPACE_PARITY			4
+
+	__u8	data_bits;
+
+	__u8	flow_control;
+#define GB_SERIAL_AUTO_RTSCTS_EN		0x1
+} __packed;
+
+/* output control lines */
+#define GB_UART_CTRL_DTR			0x01
+#define GB_UART_CTRL_RTS			0x02
+
+struct gb_uart_set_control_line_state_request {
+	__u8	control;
+} __packed;
+
+struct gb_uart_set_break_request {
+	__u8	state;
+} __packed;
+
+/* input control lines and line errors */
+#define GB_UART_CTRL_DCD			0x01
+#define GB_UART_CTRL_DSR			0x02
+#define GB_UART_CTRL_RI				0x04
+
+struct gb_uart_serial_state_request {
+	__u8	control;
+} __packed;
+
+struct gb_uart_serial_flush_request {
+	__u8    flags;
+#define GB_SERIAL_FLAG_FLUSH_TRANSMITTER	0x01
+#define GB_SERIAL_FLAG_FLUSH_RECEIVER		0x02
+} __packed;
+
+/* Loopback */
+
+/* Greybus loopback request types */
+#define GB_LOOPBACK_TYPE_PING			0x02
+#define GB_LOOPBACK_TYPE_TRANSFER		0x03
+#define GB_LOOPBACK_TYPE_SINK			0x04
+
+/*
+ * Loopback request/response header format should be identical
+ * to simplify bandwidth and data movement analysis.
+ */
+struct gb_loopback_transfer_request {
+	__le32	len;
+	__le32  reserved0;
+	__le32  reserved1;
+	__u8	data[0];
+} __packed;
+
+struct gb_loopback_transfer_response {
+	__le32	len;
+	__le32	reserved0;
+	__le32	reserved1;
+	__u8	data[0];
+} __packed;
+
+/* SDIO */
+/* Greybus SDIO operation types */
+#define GB_SDIO_TYPE_GET_CAPABILITIES		0x02
+#define GB_SDIO_TYPE_SET_IOS			0x03
+#define GB_SDIO_TYPE_COMMAND			0x04
+#define GB_SDIO_TYPE_TRANSFER			0x05
+#define GB_SDIO_TYPE_EVENT			0x06
+
+/* get caps response: request has no payload */
+struct gb_sdio_get_caps_response {
+	__le32	caps;
+#define GB_SDIO_CAP_NONREMOVABLE	0x00000001
+#define GB_SDIO_CAP_4_BIT_DATA		0x00000002
+#define GB_SDIO_CAP_8_BIT_DATA		0x00000004
+#define GB_SDIO_CAP_MMC_HS		0x00000008
+#define GB_SDIO_CAP_SD_HS		0x00000010
+#define GB_SDIO_CAP_ERASE		0x00000020
+#define GB_SDIO_CAP_1_2V_DDR		0x00000040
+#define GB_SDIO_CAP_1_8V_DDR		0x00000080
+#define GB_SDIO_CAP_POWER_OFF_CARD	0x00000100
+#define GB_SDIO_CAP_UHS_SDR12		0x00000200
+#define GB_SDIO_CAP_UHS_SDR25		0x00000400
+#define GB_SDIO_CAP_UHS_SDR50		0x00000800
+#define GB_SDIO_CAP_UHS_SDR104		0x00001000
+#define GB_SDIO_CAP_UHS_DDR50		0x00002000
+#define GB_SDIO_CAP_DRIVER_TYPE_A	0x00004000
+#define GB_SDIO_CAP_DRIVER_TYPE_C	0x00008000
+#define GB_SDIO_CAP_DRIVER_TYPE_D	0x00010000
+#define GB_SDIO_CAP_HS200_1_2V		0x00020000
+#define GB_SDIO_CAP_HS200_1_8V		0x00040000
+#define GB_SDIO_CAP_HS400_1_2V		0x00080000
+#define GB_SDIO_CAP_HS400_1_8V		0x00100000
+
+	/* see possible values below at vdd */
+	__le32 ocr;
+	__le32 f_min;
+	__le32 f_max;
+	__le16 max_blk_count;
+	__le16 max_blk_size;
+} __packed;
+
+/* set ios request: response has no payload */
+struct gb_sdio_set_ios_request {
+	__le32	clock;
+	__le32	vdd;
+#define GB_SDIO_VDD_165_195	0x00000001
+#define GB_SDIO_VDD_20_21	0x00000002
+#define GB_SDIO_VDD_21_22	0x00000004
+#define GB_SDIO_VDD_22_23	0x00000008
+#define GB_SDIO_VDD_23_24	0x00000010
+#define GB_SDIO_VDD_24_25	0x00000020
+#define GB_SDIO_VDD_25_26	0x00000040
+#define GB_SDIO_VDD_26_27	0x00000080
+#define GB_SDIO_VDD_27_28	0x00000100
+#define GB_SDIO_VDD_28_29	0x00000200
+#define GB_SDIO_VDD_29_30	0x00000400
+#define GB_SDIO_VDD_30_31	0x00000800
+#define GB_SDIO_VDD_31_32	0x00001000
+#define GB_SDIO_VDD_32_33	0x00002000
+#define GB_SDIO_VDD_33_34	0x00004000
+#define GB_SDIO_VDD_34_35	0x00008000
+#define GB_SDIO_VDD_35_36	0x00010000
+
+	__u8	bus_mode;
+#define GB_SDIO_BUSMODE_OPENDRAIN	0x00
+#define GB_SDIO_BUSMODE_PUSHPULL	0x01
+
+	__u8	power_mode;
+#define GB_SDIO_POWER_OFF	0x00
+#define GB_SDIO_POWER_UP	0x01
+#define GB_SDIO_POWER_ON	0x02
+#define GB_SDIO_POWER_UNDEFINED	0x03
+
+	__u8	bus_width;
+#define GB_SDIO_BUS_WIDTH_1	0x00
+#define GB_SDIO_BUS_WIDTH_4	0x02
+#define GB_SDIO_BUS_WIDTH_8	0x03
+
+	__u8	timing;
+#define GB_SDIO_TIMING_LEGACY		0x00
+#define GB_SDIO_TIMING_MMC_HS		0x01
+#define GB_SDIO_TIMING_SD_HS		0x02
+#define GB_SDIO_TIMING_UHS_SDR12	0x03
+#define GB_SDIO_TIMING_UHS_SDR25	0x04
+#define GB_SDIO_TIMING_UHS_SDR50	0x05
+#define GB_SDIO_TIMING_UHS_SDR104	0x06
+#define GB_SDIO_TIMING_UHS_DDR50	0x07
+#define GB_SDIO_TIMING_MMC_DDR52	0x08
+#define GB_SDIO_TIMING_MMC_HS200	0x09
+#define GB_SDIO_TIMING_MMC_HS400	0x0A
+
+	__u8	signal_voltage;
+#define GB_SDIO_SIGNAL_VOLTAGE_330	0x00
+#define GB_SDIO_SIGNAL_VOLTAGE_180	0x01
+#define GB_SDIO_SIGNAL_VOLTAGE_120	0x02
+
+	__u8	drv_type;
+#define GB_SDIO_SET_DRIVER_TYPE_B	0x00
+#define GB_SDIO_SET_DRIVER_TYPE_A	0x01
+#define GB_SDIO_SET_DRIVER_TYPE_C	0x02
+#define GB_SDIO_SET_DRIVER_TYPE_D	0x03
+} __packed;
+
+/* command request */
+struct gb_sdio_command_request {
+	__u8	cmd;
+	__u8	cmd_flags;
+#define GB_SDIO_RSP_NONE		0x00
+#define GB_SDIO_RSP_PRESENT		0x01
+#define GB_SDIO_RSP_136			0x02
+#define GB_SDIO_RSP_CRC			0x04
+#define GB_SDIO_RSP_BUSY		0x08
+#define GB_SDIO_RSP_OPCODE		0x10
+
+	__u8	cmd_type;
+#define GB_SDIO_CMD_AC		0x00
+#define GB_SDIO_CMD_ADTC	0x01
+#define GB_SDIO_CMD_BC		0x02
+#define GB_SDIO_CMD_BCR		0x03
+
+	__le32	cmd_arg;
+	__le16	data_blocks;
+	__le16	data_blksz;
+} __packed;
+
+struct gb_sdio_command_response {
+	__le32	resp[4];
+} __packed;
+
+/* transfer request */
+struct gb_sdio_transfer_request {
+	__u8	data_flags;
+#define GB_SDIO_DATA_WRITE	0x01
+#define GB_SDIO_DATA_READ	0x02
+#define GB_SDIO_DATA_STREAM	0x04
+
+	__le16	data_blocks;
+	__le16	data_blksz;
+	__u8	data[0];
+} __packed;
+
+struct gb_sdio_transfer_response {
+	__le16	data_blocks;
+	__le16	data_blksz;
+	__u8	data[0];
+} __packed;
+
+/* event request: generated by module and is defined as unidirectional */
+struct gb_sdio_event_request {
+	__u8	event;
+#define GB_SDIO_CARD_INSERTED	0x01
+#define GB_SDIO_CARD_REMOVED	0x02
+#define GB_SDIO_WP		0x04
+} __packed;
+
+/* Camera */
+
+/* Greybus Camera request types */
+#define GB_CAMERA_TYPE_CAPABILITIES		0x02
+#define GB_CAMERA_TYPE_CONFIGURE_STREAMS	0x03
+#define GB_CAMERA_TYPE_CAPTURE			0x04
+#define GB_CAMERA_TYPE_FLUSH			0x05
+#define GB_CAMERA_TYPE_METADATA			0x06
+
+#define GB_CAMERA_MAX_STREAMS			4
+#define GB_CAMERA_MAX_SETTINGS_SIZE		8192
+
+/* Greybus Camera Configure Streams request payload */
+struct gb_camera_stream_config_request {
+	__le16 width;
+	__le16 height;
+	__le16 format;
+	__le16 padding;
+} __packed;
+
+struct gb_camera_configure_streams_request {
+	__u8 num_streams;
+	__u8 flags;
+#define GB_CAMERA_CONFIGURE_STREAMS_TEST_ONLY	0x01
+	__le16 padding;
+	struct gb_camera_stream_config_request config[0];
+} __packed;
+
+/* Greybus Camera Configure Streams response payload */
+struct gb_camera_stream_config_response {
+	__le16 width;
+	__le16 height;
+	__le16 format;
+	__u8 virtual_channel;
+	__u8 data_type[2];
+	__le16 max_pkt_size;
+	__u8 padding;
+	__le32 max_size;
+} __packed;
+
+struct gb_camera_configure_streams_response {
+	__u8 num_streams;
+#define GB_CAMERA_CONFIGURE_STREAMS_ADJUSTED	0x01
+	__u8 flags;
+	__u8 padding[2];
+	__le32 data_rate;
+	struct gb_camera_stream_config_response config[0];
+};
+
+/* Greybus Camera Capture request payload - response has no payload */
+struct gb_camera_capture_request {
+	__le32 request_id;
+	__u8 streams;
+	__u8 padding;
+	__le16 num_frames;
+	__u8 settings[0];
+} __packed;
+
+/* Greybus Camera Flush response payload - request has no payload */
+struct gb_camera_flush_response {
+	__le32 request_id;
+} __packed;
+
+/* Greybus Camera Metadata request payload - operation has no response */
+struct gb_camera_metadata_request {
+	__le32 request_id;
+	__le16 frame_number;
+	__u8 stream;
+	__u8 padding;
+	__u8 metadata[0];
+} __packed;
+
+/* Lights */
+
+/* Greybus Lights request types */
+#define GB_LIGHTS_TYPE_GET_LIGHTS		0x02
+#define GB_LIGHTS_TYPE_GET_LIGHT_CONFIG		0x03
+#define GB_LIGHTS_TYPE_GET_CHANNEL_CONFIG	0x04
+#define GB_LIGHTS_TYPE_GET_CHANNEL_FLASH_CONFIG	0x05
+#define GB_LIGHTS_TYPE_SET_BRIGHTNESS		0x06
+#define GB_LIGHTS_TYPE_SET_BLINK		0x07
+#define GB_LIGHTS_TYPE_SET_COLOR		0x08
+#define GB_LIGHTS_TYPE_SET_FADE			0x09
+#define GB_LIGHTS_TYPE_EVENT			0x0A
+#define GB_LIGHTS_TYPE_SET_FLASH_INTENSITY	0x0B
+#define GB_LIGHTS_TYPE_SET_FLASH_STROBE		0x0C
+#define GB_LIGHTS_TYPE_SET_FLASH_TIMEOUT	0x0D
+#define GB_LIGHTS_TYPE_GET_FLASH_FAULT		0x0E
+
+/* Greybus Light modes */
+
+/*
+ * if you add any specific mode below, update also the
+ * GB_CHANNEL_MODE_DEFINED_RANGE value accordingly
+ */
+#define GB_CHANNEL_MODE_NONE		0x00000000
+#define GB_CHANNEL_MODE_BATTERY		0x00000001
+#define GB_CHANNEL_MODE_POWER		0x00000002
+#define GB_CHANNEL_MODE_WIRELESS	0x00000004
+#define GB_CHANNEL_MODE_BLUETOOTH	0x00000008
+#define GB_CHANNEL_MODE_KEYBOARD	0x00000010
+#define GB_CHANNEL_MODE_BUTTONS		0x00000020
+#define GB_CHANNEL_MODE_NOTIFICATION	0x00000040
+#define GB_CHANNEL_MODE_ATTENTION	0x00000080
+#define GB_CHANNEL_MODE_FLASH		0x00000100
+#define GB_CHANNEL_MODE_TORCH		0x00000200
+#define GB_CHANNEL_MODE_INDICATOR	0x00000400
+
+/* Lights Mode valid bit values */
+#define GB_CHANNEL_MODE_DEFINED_RANGE	0x000004FF
+#define GB_CHANNEL_MODE_VENDOR_RANGE	0x00F00000
+
+/* Greybus Light Channels Flags */
+#define GB_LIGHT_CHANNEL_MULTICOLOR	0x00000001
+#define GB_LIGHT_CHANNEL_FADER		0x00000002
+#define GB_LIGHT_CHANNEL_BLINK		0x00000004
+
+/* get count of lights in module */
+struct gb_lights_get_lights_response {
+	__u8	lights_count;
+} __packed;
+
+/* light config request payload */
+struct gb_lights_get_light_config_request {
+	__u8	id;
+} __packed;
+
+/* light config response payload */
+struct gb_lights_get_light_config_response {
+	__u8	channel_count;
+	__u8	name[32];
+} __packed;
+
+/* channel config request payload */
+struct gb_lights_get_channel_config_request {
+	__u8	light_id;
+	__u8	channel_id;
+} __packed;
+
+/* channel flash config request payload */
+struct gb_lights_get_channel_flash_config_request {
+	__u8	light_id;
+	__u8	channel_id;
+} __packed;
+
+/* channel config response payload */
+struct gb_lights_get_channel_config_response {
+	__u8	max_brightness;
+	__le32	flags;
+	__le32	color;
+	__u8	color_name[32];
+	__le32	mode;
+	__u8	mode_name[32];
+} __packed;
+
+/* channel flash config response payload */
+struct gb_lights_get_channel_flash_config_response {
+	__le32	intensity_min_uA;
+	__le32	intensity_max_uA;
+	__le32	intensity_step_uA;
+	__le32	timeout_min_us;
+	__le32	timeout_max_us;
+	__le32	timeout_step_us;
+} __packed;
+
+/* blink request payload: response have no payload */
+struct gb_lights_blink_request {
+	__u8	light_id;
+	__u8	channel_id;
+	__le16	time_on_ms;
+	__le16	time_off_ms;
+} __packed;
+
+/* set brightness request payload: response have no payload */
+struct gb_lights_set_brightness_request {
+	__u8	light_id;
+	__u8	channel_id;
+	__u8	brightness;
+} __packed;
+
+/* set color request payload: response have no payload */
+struct gb_lights_set_color_request {
+	__u8	light_id;
+	__u8	channel_id;
+	__le32	color;
+} __packed;
+
+/* set fade request payload: response have no payload */
+struct gb_lights_set_fade_request {
+	__u8	light_id;
+	__u8	channel_id;
+	__u8	fade_in;
+	__u8	fade_out;
+} __packed;
+
+/* event request: generated by module */
+struct gb_lights_event_request {
+	__u8	light_id;
+	__u8	event;
+#define GB_LIGHTS_LIGHT_CONFIG		0x01
+} __packed;
+
+/* set flash intensity request payload: response have no payload */
+struct gb_lights_set_flash_intensity_request {
+	__u8	light_id;
+	__u8	channel_id;
+	__le32	intensity_uA;
+} __packed;
+
+/* set flash strobe state request payload: response have no payload */
+struct gb_lights_set_flash_strobe_request {
+	__u8	light_id;
+	__u8	channel_id;
+	__u8	state;
+} __packed;
+
+/* set flash timeout request payload: response have no payload */
+struct gb_lights_set_flash_timeout_request {
+	__u8	light_id;
+	__u8	channel_id;
+	__le32	timeout_us;
+} __packed;
+
+/* get flash fault request payload */
+struct gb_lights_get_flash_fault_request {
+	__u8	light_id;
+	__u8	channel_id;
+} __packed;
+
+/* get flash fault response payload */
+struct gb_lights_get_flash_fault_response {
+	__le32	fault;
+#define GB_LIGHTS_FLASH_FAULT_OVER_VOLTAGE		0x00000000
+#define GB_LIGHTS_FLASH_FAULT_TIMEOUT			0x00000001
+#define GB_LIGHTS_FLASH_FAULT_OVER_TEMPERATURE		0x00000002
+#define GB_LIGHTS_FLASH_FAULT_SHORT_CIRCUIT		0x00000004
+#define GB_LIGHTS_FLASH_FAULT_OVER_CURRENT		0x00000008
+#define GB_LIGHTS_FLASH_FAULT_INDICATOR			0x00000010
+#define GB_LIGHTS_FLASH_FAULT_UNDER_VOLTAGE		0x00000020
+#define GB_LIGHTS_FLASH_FAULT_INPUT_VOLTAGE		0x00000040
+#define GB_LIGHTS_FLASH_FAULT_LED_OVER_TEMPERATURE	0x00000080
+} __packed;
+
+/* Audio */
+
+#define GB_AUDIO_TYPE_GET_TOPOLOGY_SIZE		0x02
+#define GB_AUDIO_TYPE_GET_TOPOLOGY		0x03
+#define GB_AUDIO_TYPE_GET_CONTROL		0x04
+#define GB_AUDIO_TYPE_SET_CONTROL		0x05
+#define GB_AUDIO_TYPE_ENABLE_WIDGET		0x06
+#define GB_AUDIO_TYPE_DISABLE_WIDGET		0x07
+#define GB_AUDIO_TYPE_GET_PCM			0x08
+#define GB_AUDIO_TYPE_SET_PCM			0x09
+#define GB_AUDIO_TYPE_SET_TX_DATA_SIZE		0x0a
+						/* 0x0b unused */
+#define GB_AUDIO_TYPE_ACTIVATE_TX		0x0c
+#define GB_AUDIO_TYPE_DEACTIVATE_TX		0x0d
+#define GB_AUDIO_TYPE_SET_RX_DATA_SIZE		0x0e
+						/* 0x0f unused */
+#define GB_AUDIO_TYPE_ACTIVATE_RX		0x10
+#define GB_AUDIO_TYPE_DEACTIVATE_RX		0x11
+#define GB_AUDIO_TYPE_JACK_EVENT		0x12
+#define GB_AUDIO_TYPE_BUTTON_EVENT		0x13
+#define GB_AUDIO_TYPE_STREAMING_EVENT		0x14
+#define GB_AUDIO_TYPE_SEND_DATA			0x15
+
+/* Module must be able to buffer 10ms of audio data, minimum */
+#define GB_AUDIO_SAMPLE_BUFFER_MIN_US		10000
+
+#define GB_AUDIO_PCM_NAME_MAX			32
+#define AUDIO_DAI_NAME_MAX			32
+#define AUDIO_CONTROL_NAME_MAX			32
+#define AUDIO_CTL_ELEM_NAME_MAX			44
+#define AUDIO_ENUM_NAME_MAX			64
+#define AUDIO_WIDGET_NAME_MAX			32
+
+/* See SNDRV_PCM_FMTBIT_* in Linux source */
+#define GB_AUDIO_PCM_FMT_S8			BIT(0)
+#define GB_AUDIO_PCM_FMT_U8			BIT(1)
+#define GB_AUDIO_PCM_FMT_S16_LE			BIT(2)
+#define GB_AUDIO_PCM_FMT_S16_BE			BIT(3)
+#define GB_AUDIO_PCM_FMT_U16_LE			BIT(4)
+#define GB_AUDIO_PCM_FMT_U16_BE			BIT(5)
+#define GB_AUDIO_PCM_FMT_S24_LE			BIT(6)
+#define GB_AUDIO_PCM_FMT_S24_BE			BIT(7)
+#define GB_AUDIO_PCM_FMT_U24_LE			BIT(8)
+#define GB_AUDIO_PCM_FMT_U24_BE			BIT(9)
+#define GB_AUDIO_PCM_FMT_S32_LE			BIT(10)
+#define GB_AUDIO_PCM_FMT_S32_BE			BIT(11)
+#define GB_AUDIO_PCM_FMT_U32_LE			BIT(12)
+#define GB_AUDIO_PCM_FMT_U32_BE			BIT(13)
+
+/* See SNDRV_PCM_RATE_* in Linux source */
+#define GB_AUDIO_PCM_RATE_5512			BIT(0)
+#define GB_AUDIO_PCM_RATE_8000			BIT(1)
+#define GB_AUDIO_PCM_RATE_11025			BIT(2)
+#define GB_AUDIO_PCM_RATE_16000			BIT(3)
+#define GB_AUDIO_PCM_RATE_22050			BIT(4)
+#define GB_AUDIO_PCM_RATE_32000			BIT(5)
+#define GB_AUDIO_PCM_RATE_44100			BIT(6)
+#define GB_AUDIO_PCM_RATE_48000			BIT(7)
+#define GB_AUDIO_PCM_RATE_64000			BIT(8)
+#define GB_AUDIO_PCM_RATE_88200			BIT(9)
+#define GB_AUDIO_PCM_RATE_96000			BIT(10)
+#define GB_AUDIO_PCM_RATE_176400		BIT(11)
+#define GB_AUDIO_PCM_RATE_192000		BIT(12)
+
+#define GB_AUDIO_STREAM_TYPE_CAPTURE		0x1
+#define GB_AUDIO_STREAM_TYPE_PLAYBACK		0x2
+
+#define GB_AUDIO_CTL_ELEM_ACCESS_READ		BIT(0)
+#define GB_AUDIO_CTL_ELEM_ACCESS_WRITE		BIT(1)
+
+/* See SNDRV_CTL_ELEM_TYPE_* in Linux source */
+#define GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN		0x01
+#define GB_AUDIO_CTL_ELEM_TYPE_INTEGER		0x02
+#define GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED	0x03
+#define GB_AUDIO_CTL_ELEM_TYPE_INTEGER64	0x06
+
+/* See SNDRV_CTL_ELEM_IFACE_* in Linux source */
+#define GB_AUDIO_CTL_ELEM_IFACE_CARD		0x00
+#define GB_AUDIO_CTL_ELEM_IFACE_HWDEP		0x01
+#define GB_AUDIO_CTL_ELEM_IFACE_MIXER		0x02
+#define GB_AUDIO_CTL_ELEM_IFACE_PCM		0x03
+#define GB_AUDIO_CTL_ELEM_IFACE_RAWMIDI		0x04
+#define GB_AUDIO_CTL_ELEM_IFACE_TIMER		0x05
+#define GB_AUDIO_CTL_ELEM_IFACE_SEQUENCER	0x06
+
+/* SNDRV_CTL_ELEM_ACCESS_* in Linux source */
+#define GB_AUDIO_ACCESS_READ			BIT(0)
+#define GB_AUDIO_ACCESS_WRITE			BIT(1)
+#define GB_AUDIO_ACCESS_VOLATILE		BIT(2)
+#define GB_AUDIO_ACCESS_TIMESTAMP		BIT(3)
+#define GB_AUDIO_ACCESS_TLV_READ		BIT(4)
+#define GB_AUDIO_ACCESS_TLV_WRITE		BIT(5)
+#define GB_AUDIO_ACCESS_TLV_COMMAND		BIT(6)
+#define GB_AUDIO_ACCESS_INACTIVE		BIT(7)
+#define GB_AUDIO_ACCESS_LOCK			BIT(8)
+#define GB_AUDIO_ACCESS_OWNER			BIT(9)
+
+/* enum snd_soc_dapm_type */
+#define GB_AUDIO_WIDGET_TYPE_INPUT		0x0
+#define GB_AUDIO_WIDGET_TYPE_OUTPUT		0x1
+#define GB_AUDIO_WIDGET_TYPE_MUX		0x2
+#define GB_AUDIO_WIDGET_TYPE_VIRT_MUX		0x3
+#define GB_AUDIO_WIDGET_TYPE_VALUE_MUX		0x4
+#define GB_AUDIO_WIDGET_TYPE_MIXER		0x5
+#define GB_AUDIO_WIDGET_TYPE_MIXER_NAMED_CTL	0x6
+#define GB_AUDIO_WIDGET_TYPE_PGA		0x7
+#define GB_AUDIO_WIDGET_TYPE_OUT_DRV		0x8
+#define GB_AUDIO_WIDGET_TYPE_ADC		0x9
+#define GB_AUDIO_WIDGET_TYPE_DAC		0xa
+#define GB_AUDIO_WIDGET_TYPE_MICBIAS		0xb
+#define GB_AUDIO_WIDGET_TYPE_MIC		0xc
+#define GB_AUDIO_WIDGET_TYPE_HP			0xd
+#define GB_AUDIO_WIDGET_TYPE_SPK		0xe
+#define GB_AUDIO_WIDGET_TYPE_LINE		0xf
+#define GB_AUDIO_WIDGET_TYPE_SWITCH		0x10
+#define GB_AUDIO_WIDGET_TYPE_VMID		0x11
+#define GB_AUDIO_WIDGET_TYPE_PRE		0x12
+#define GB_AUDIO_WIDGET_TYPE_POST		0x13
+#define GB_AUDIO_WIDGET_TYPE_SUPPLY		0x14
+#define GB_AUDIO_WIDGET_TYPE_REGULATOR_SUPPLY	0x15
+#define GB_AUDIO_WIDGET_TYPE_CLOCK_SUPPLY	0x16
+#define GB_AUDIO_WIDGET_TYPE_AIF_IN		0x17
+#define GB_AUDIO_WIDGET_TYPE_AIF_OUT		0x18
+#define GB_AUDIO_WIDGET_TYPE_SIGGEN		0x19
+#define GB_AUDIO_WIDGET_TYPE_DAI_IN		0x1a
+#define GB_AUDIO_WIDGET_TYPE_DAI_OUT		0x1b
+#define GB_AUDIO_WIDGET_TYPE_DAI_LINK		0x1c
+
+#define GB_AUDIO_WIDGET_STATE_DISABLED		0x01
+#define GB_AUDIO_WIDGET_STATE_ENAABLED		0x02
+
+#define GB_AUDIO_JACK_EVENT_INSERTION		0x1
+#define GB_AUDIO_JACK_EVENT_REMOVAL		0x2
+
+#define GB_AUDIO_BUTTON_EVENT_PRESS		0x1
+#define GB_AUDIO_BUTTON_EVENT_RELEASE		0x2
+
+#define GB_AUDIO_STREAMING_EVENT_UNSPECIFIED	0x1
+#define GB_AUDIO_STREAMING_EVENT_HALT		0x2
+#define GB_AUDIO_STREAMING_EVENT_INTERNAL_ERROR	0x3
+#define GB_AUDIO_STREAMING_EVENT_PROTOCOL_ERROR	0x4
+#define GB_AUDIO_STREAMING_EVENT_FAILURE	0x5
+#define GB_AUDIO_STREAMING_EVENT_UNDERRUN	0x6
+#define GB_AUDIO_STREAMING_EVENT_OVERRUN	0x7
+#define GB_AUDIO_STREAMING_EVENT_CLOCKING	0x8
+#define GB_AUDIO_STREAMING_EVENT_DATA_LEN	0x9
+
+#define GB_AUDIO_INVALID_INDEX			0xff
+
+/* enum snd_jack_types */
+#define GB_AUDIO_JACK_HEADPHONE			0x0000001
+#define GB_AUDIO_JACK_MICROPHONE		0x0000002
+#define GB_AUDIO_JACK_HEADSET			(GB_AUDIO_JACK_HEADPHONE | \
+						 GB_AUDIO_JACK_MICROPHONE)
+#define GB_AUDIO_JACK_LINEOUT			0x0000004
+#define GB_AUDIO_JACK_MECHANICAL		0x0000008
+#define GB_AUDIO_JACK_VIDEOOUT			0x0000010
+#define GB_AUDIO_JACK_AVOUT			(GB_AUDIO_JACK_LINEOUT | \
+						 GB_AUDIO_JACK_VIDEOOUT)
+#define GB_AUDIO_JACK_LINEIN			0x0000020
+#define GB_AUDIO_JACK_OC_HPHL			0x0000040
+#define GB_AUDIO_JACK_OC_HPHR			0x0000080
+#define GB_AUDIO_JACK_MICROPHONE2		0x0000200
+#define GB_AUDIO_JACK_ANC_HEADPHONE		(GB_AUDIO_JACK_HEADPHONE | \
+						 GB_AUDIO_JACK_MICROPHONE | \
+						 GB_AUDIO_JACK_MICROPHONE2)
+/* Kept separate from switches to facilitate implementation */
+#define GB_AUDIO_JACK_BTN_0			0x4000000
+#define GB_AUDIO_JACK_BTN_1			0x2000000
+#define GB_AUDIO_JACK_BTN_2			0x1000000
+#define GB_AUDIO_JACK_BTN_3			0x0800000
+
+struct gb_audio_pcm {
+	__u8	stream_name[GB_AUDIO_PCM_NAME_MAX];
+	__le32	formats;	/* GB_AUDIO_PCM_FMT_* */
+	__le32	rates;		/* GB_AUDIO_PCM_RATE_* */
+	__u8	chan_min;
+	__u8	chan_max;
+	__u8	sig_bits;	/* number of bits of content */
+} __packed;
+
+struct gb_audio_dai {
+	__u8			name[AUDIO_DAI_NAME_MAX];
+	__le16			data_cport;
+	struct gb_audio_pcm	capture;
+	struct gb_audio_pcm	playback;
+} __packed;
+
+struct gb_audio_integer {
+	__le32	min;
+	__le32	max;
+	__le32	step;
+} __packed;
+
+struct gb_audio_integer64 {
+	__le64	min;
+	__le64	max;
+	__le64	step;
+} __packed;
+
+struct gb_audio_enumerated {
+	__le32	items;
+	__le16	names_length;
+	__u8	names[0];
+} __packed;
+
+struct gb_audio_ctl_elem_info { /* See snd_ctl_elem_info in Linux source */
+	__u8		type;		/* GB_AUDIO_CTL_ELEM_TYPE_* */
+	__le16		dimen[4];
+	union {
+		struct gb_audio_integer		integer;
+		struct gb_audio_integer64	integer64;
+		struct gb_audio_enumerated	enumerated;
+	} value;
+} __packed;
+
+struct gb_audio_ctl_elem_value { /* See snd_ctl_elem_value in Linux source */
+	__le64				timestamp; /* XXX needed? */
+	union {
+		__le32	integer_value[2];	/* consider CTL_DOUBLE_xxx */
+		__le64	integer64_value[2];
+		__le32	enumerated_item[2];
+	} value;
+} __packed;
+
+struct gb_audio_control {
+	__u8	name[AUDIO_CONTROL_NAME_MAX];
+	__u8	id;		/* 0-63 */
+	__u8	iface;		/* GB_AUDIO_IFACE_* */
+	__le16	data_cport;
+	__le32	access;		/* GB_AUDIO_ACCESS_* */
+	__u8    count;		/* count of same elements */
+	__u8	count_values;	/* count of values, max=2 for CTL_DOUBLE_xxx */
+	struct gb_audio_ctl_elem_info	info;
+} __packed;
+
+struct gb_audio_widget {
+	__u8	name[AUDIO_WIDGET_NAME_MAX];
+	__u8	sname[AUDIO_WIDGET_NAME_MAX];
+	__u8	id;
+	__u8	type;		/* GB_AUDIO_WIDGET_TYPE_* */
+	__u8	state;		/* GB_AUDIO_WIDGET_STATE_* */
+	__u8	ncontrols;
+	struct gb_audio_control	ctl[0];	/* 'ncontrols' entries */
+} __packed;
+
+struct gb_audio_route {
+	__u8	source_id;	/* widget id */
+	__u8	destination_id;	/* widget id */
+	__u8	control_id;	/* 0-63 */
+	__u8	index;		/* Selection within the control */
+} __packed;
+
+struct gb_audio_topology {
+	__u8	num_dais;
+	__u8	num_controls;
+	__u8	num_widgets;
+	__u8	num_routes;
+	__le32	size_dais;
+	__le32	size_controls;
+	__le32	size_widgets;
+	__le32	size_routes;
+	__le32	jack_type;
+	/*
+	 * struct gb_audio_dai		dai[num_dais];
+	 * struct gb_audio_control	controls[num_controls];
+	 * struct gb_audio_widget	widgets[num_widgets];
+	 * struct gb_audio_route	routes[num_routes];
+	 */
+	__u8	data[0];
+} __packed;
+
+struct gb_audio_get_topology_size_response {
+	__le16	size;
+} __packed;
+
+struct gb_audio_get_topology_response {
+	struct gb_audio_topology	topology;
+} __packed;
+
+struct gb_audio_get_control_request {
+	__u8	control_id;
+	__u8	index;
+} __packed;
+
+struct gb_audio_get_control_response {
+	struct gb_audio_ctl_elem_value	value;
+} __packed;
+
+struct gb_audio_set_control_request {
+	__u8	control_id;
+	__u8	index;
+	struct gb_audio_ctl_elem_value	value;
+} __packed;
+
+struct gb_audio_enable_widget_request {
+	__u8	widget_id;
+} __packed;
+
+struct gb_audio_disable_widget_request {
+	__u8	widget_id;
+} __packed;
+
+struct gb_audio_get_pcm_request {
+	__le16	data_cport;
+} __packed;
+
+struct gb_audio_get_pcm_response {
+	__le32	format;
+	__le32	rate;
+	__u8	channels;
+	__u8	sig_bits;
+} __packed;
+
+struct gb_audio_set_pcm_request {
+	__le16	data_cport;
+	__le32	format;
+	__le32	rate;
+	__u8	channels;
+	__u8	sig_bits;
+} __packed;
+
+struct gb_audio_set_tx_data_size_request {
+	__le16	data_cport;
+	__le16	size;
+} __packed;
+
+struct gb_audio_activate_tx_request {
+	__le16	data_cport;
+} __packed;
+
+struct gb_audio_deactivate_tx_request {
+	__le16	data_cport;
+} __packed;
+
+struct gb_audio_set_rx_data_size_request {
+	__le16	data_cport;
+	__le16	size;
+} __packed;
+
+struct gb_audio_activate_rx_request {
+	__le16	data_cport;
+} __packed;
+
+struct gb_audio_deactivate_rx_request {
+	__le16	data_cport;
+} __packed;
+
+struct gb_audio_jack_event_request {
+	__u8	widget_id;
+	__u8	jack_attribute;
+	__u8	event;
+} __packed;
+
+struct gb_audio_button_event_request {
+	__u8	widget_id;
+	__u8	button_id;
+	__u8	event;
+} __packed;
+
+struct gb_audio_streaming_event_request {
+	__le16	data_cport;
+	__u8	event;
+} __packed;
+
+struct gb_audio_send_data_request {
+	__le64	timestamp;
+	__u8	data[0];
+} __packed;
+
+
+/* Log */
+
+/* operations */
+#define GB_LOG_TYPE_SEND_LOG	0x02
+
+/* length */
+#define GB_LOG_MAX_LEN		1024
+
+struct gb_log_send_log_request {
+	__le16	len;
+	__u8    msg[0];
+} __packed;
+
+#endif /* __GREYBUS_PROTOCOLS_H */
+