147 lines
5.2 KiB
C
147 lines
5.2 KiB
C
/*
|
|
* Gadget Function Driver for Android USB accessories
|
|
*
|
|
* Copyright (C) 2011 Google, Inc.
|
|
* Author: Mike Lockwood <lockwood@android.com>
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* 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 for more details.
|
|
*
|
|
*/
|
|
|
|
#ifndef _UAPI_LINUX_USB_F_ACCESSORY_H
|
|
#define _UAPI_LINUX_USB_F_ACCESSORY_H
|
|
|
|
/* Use Google Vendor ID when in accessory mode */
|
|
#define USB_ACCESSORY_VENDOR_ID 0x18D1
|
|
|
|
|
|
/* Product ID to use when in accessory mode */
|
|
#define USB_ACCESSORY_PRODUCT_ID 0x2D00
|
|
|
|
/* Product ID to use when in accessory mode and adb is enabled */
|
|
#define USB_ACCESSORY_ADB_PRODUCT_ID 0x2D01
|
|
|
|
/* Indexes for strings sent by the host via ACCESSORY_SEND_STRING */
|
|
#define ACCESSORY_STRING_MANUFACTURER 0
|
|
#define ACCESSORY_STRING_MODEL 1
|
|
#define ACCESSORY_STRING_DESCRIPTION 2
|
|
#define ACCESSORY_STRING_VERSION 3
|
|
#define ACCESSORY_STRING_URI 4
|
|
#define ACCESSORY_STRING_SERIAL 5
|
|
|
|
/* Control request for retrieving device's protocol version
|
|
*
|
|
* requestType: USB_DIR_IN | USB_TYPE_VENDOR
|
|
* request: ACCESSORY_GET_PROTOCOL
|
|
* value: 0
|
|
* index: 0
|
|
* data version number (16 bits little endian)
|
|
* 1 for original accessory support
|
|
* 2 adds HID and device to host audio support
|
|
*/
|
|
#define ACCESSORY_GET_PROTOCOL 51
|
|
|
|
/* Control request for host to send a string to the device
|
|
*
|
|
* requestType: USB_DIR_OUT | USB_TYPE_VENDOR
|
|
* request: ACCESSORY_SEND_STRING
|
|
* value: 0
|
|
* index: string ID
|
|
* data zero terminated UTF8 string
|
|
*
|
|
* The device can later retrieve these strings via the
|
|
* ACCESSORY_GET_STRING_* ioctls
|
|
*/
|
|
#define ACCESSORY_SEND_STRING 52
|
|
|
|
/* Control request for starting device in accessory mode.
|
|
* The host sends this after setting all its strings to the device.
|
|
*
|
|
* requestType: USB_DIR_OUT | USB_TYPE_VENDOR
|
|
* request: ACCESSORY_START
|
|
* value: 0
|
|
* index: 0
|
|
* data none
|
|
*/
|
|
#define ACCESSORY_START 53
|
|
|
|
/* Control request for registering a HID device.
|
|
* Upon registering, a unique ID is sent by the accessory in the
|
|
* value parameter. This ID will be used for future commands for
|
|
* the device
|
|
*
|
|
* requestType: USB_DIR_OUT | USB_TYPE_VENDOR
|
|
* request: ACCESSORY_REGISTER_HID_DEVICE
|
|
* value: Accessory assigned ID for the HID device
|
|
* index: total length of the HID report descriptor
|
|
* data none
|
|
*/
|
|
#define ACCESSORY_REGISTER_HID 54
|
|
|
|
/* Control request for unregistering a HID device.
|
|
*
|
|
* requestType: USB_DIR_OUT | USB_TYPE_VENDOR
|
|
* request: ACCESSORY_REGISTER_HID
|
|
* value: Accessory assigned ID for the HID device
|
|
* index: 0
|
|
* data none
|
|
*/
|
|
#define ACCESSORY_UNREGISTER_HID 55
|
|
|
|
/* Control request for sending the HID report descriptor.
|
|
* If the HID descriptor is longer than the endpoint zero max packet size,
|
|
* the descriptor will be sent in multiple ACCESSORY_SET_HID_REPORT_DESC
|
|
* commands. The data for the descriptor must be sent sequentially
|
|
* if multiple packets are needed.
|
|
*
|
|
* requestType: USB_DIR_OUT | USB_TYPE_VENDOR
|
|
* request: ACCESSORY_SET_HID_REPORT_DESC
|
|
* value: Accessory assigned ID for the HID device
|
|
* index: offset of data in descriptor
|
|
* (needed when HID descriptor is too big for one packet)
|
|
* data the HID report descriptor
|
|
*/
|
|
#define ACCESSORY_SET_HID_REPORT_DESC 56
|
|
|
|
/* Control request for sending HID events.
|
|
*
|
|
* requestType: USB_DIR_OUT | USB_TYPE_VENDOR
|
|
* request: ACCESSORY_SEND_HID_EVENT
|
|
* value: Accessory assigned ID for the HID device
|
|
* index: 0
|
|
* data the HID report for the event
|
|
*/
|
|
#define ACCESSORY_SEND_HID_EVENT 57
|
|
|
|
/* Control request for setting the audio mode.
|
|
*
|
|
* requestType: USB_DIR_OUT | USB_TYPE_VENDOR
|
|
* request: ACCESSORY_SET_AUDIO_MODE
|
|
* value: 0 - no audio
|
|
* 1 - device to host, 44100 16-bit stereo PCM
|
|
* index: 0
|
|
* data none
|
|
*/
|
|
#define ACCESSORY_SET_AUDIO_MODE 58
|
|
|
|
/* ioctls for retrieving strings set by the host */
|
|
#define ACCESSORY_GET_STRING_MANUFACTURER _IOW('M', 1, char[256])
|
|
#define ACCESSORY_GET_STRING_MODEL _IOW('M', 2, char[256])
|
|
#define ACCESSORY_GET_STRING_DESCRIPTION _IOW('M', 3, char[256])
|
|
#define ACCESSORY_GET_STRING_VERSION _IOW('M', 4, char[256])
|
|
#define ACCESSORY_GET_STRING_URI _IOW('M', 5, char[256])
|
|
#define ACCESSORY_GET_STRING_SERIAL _IOW('M', 6, char[256])
|
|
/* returns 1 if there is a start request pending */
|
|
#define ACCESSORY_IS_START_REQUESTED _IO('M', 7)
|
|
/* returns audio mode (set via the ACCESSORY_SET_AUDIO_MODE control request) */
|
|
#define ACCESSORY_GET_AUDIO_MODE _IO('M', 8)
|
|
|
|
#endif /* _UAPI_LINUX_USB_F_ACCESSORY_H */
|