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usb: hid: Add Human Interface Device (HID) class

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Add support for Human Interface Device USB class.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This commit is contained in:
Andrei Emeltchenko 2018-01-24 14:02:44 +02:00 • committed by Anas Nashif
commit e8ccb16986
8 changed files with 401 additions and 3 deletions
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include/usb/class/usb_hid.h Normal file
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/*
* Human Interface Device (HID) USB class core header
*
* Copyright (c) 2018 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief USB Human Interface Device (HID) Class public header
*
* Header follows Device Class Definition for Human Interface Devices (HID)
* Version 1.11 document (HID1_11-1.pdf).
*/
#ifndef __USB_HID_H__
#define __USB_HID_H__
struct usb_hid_class_subdescriptor {
u8_t bDescriptorType;
u16_t wDescriptorLength;
} __packed;
struct usb_hid_descriptor {
u8_t bLength;
u8_t bDescriptorType;
u16_t bcdHID;
u8_t bCountryCode;
u8_t bNumDescriptors;
/*
* Specification says at least one Class Descriptor needs to
* be present (Report Descriptor).
*/
struct usb_hid_class_subdescriptor subdesc[1];
} __packed;
/* HID Class Specific Requests */
#define HID_GET_REPORT 0x01
#define HID_GET_IDLE 0x02
#define HID_GET_PROTOCOL 0x03
#define HID_SET_REPORT 0x09
#define HID_SET_IDLE 0x0A
#define HID_SET_PROTOCOL 0x0B
/* Public headers */
struct hid_ops {
int (*get_report)(struct usb_setup_packet *setup, s32_t *len,
u8_t **data);
int (*get_idle)(struct usb_setup_packet *setup, s32_t *len,
u8_t **data);
int (*get_protocol)(struct usb_setup_packet *setup, s32_t *len,
u8_t **data);
int (*set_report)(struct usb_setup_packet *setup, s32_t *len,
u8_t **data);
int (*set_idle)(struct usb_setup_packet *setup, s32_t *len,
u8_t **data);
int (*set_protocol)(struct usb_setup_packet *setup, s32_t *len,
u8_t **data);
};
/* Register HID device */
void usb_hid_register_device(const u8_t *desc, size_t size, struct hid_ops *op);
/* Initialize USB HID */
int usb_hid_init(void);
#endif /* __USB_HID_H__ */