src/devices/usb/lib/usb/include/usb/hid.h

// Copyright 2016 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SRC_DEVICES_USB_LIB_USB_INCLUDE_USB_HID_H_
#define SRC_DEVICES_USB_LIB_USB_INCLUDE_USB_HID_H_

#include <stdint.h>
#include <zircon/compiler.h>

__BEGIN_CDECLS

// clang-format off

// HID Request Values.
#define USB_HID_GET_REPORT                  0x01
#define USB_HID_GET_IDLE                    0x02
#define USB_HID_GET_PROTOCOL                0x03
#define USB_HID_SET_REPORT                  0x09
#define USB_HID_SET_IDLE                    0x0A
#define USB_HID_SET_PROTOCOL                0x0B

// HID USB protocols
#define USB_HID_PROTOCOL_KBD 0x01
#define USB_HID_PROTOCOL_MOUSE 0x02
#define USB_HID_SUBCLASS_BOOT 0x01

// clang-format on

typedef struct {
  uint8_t bDescriptorType;
  uint16_t wDescriptorLength;
} __attribute__((packed)) usb_hid_descriptor_entry_t;

typedef struct {
  uint8_t bLength;
  uint8_t bDescriptorType;
  uint16_t bcdHID;
  uint8_t bCountryCode;
  uint8_t bNumDescriptors;
  usb_hid_descriptor_entry_t descriptors[];
} __attribute__((packed)) usb_hid_descriptor_t;

__END_CDECLS

#endif  // SRC_DEVICES_USB_LIB_USB_INCLUDE_USB_HID_H_