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#ifndef USBSTACK_HID_H_
#define USBSTACK_HID_H_
/*
* Tiny USB stack
* HID device driver
*
* Copyright (C) 2014 Michael Buesch <m@bues.ch>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 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 for more details.
*/
#include <stdint.h>
struct usb_ctrl;
struct usb_hid_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bcdHID;
uint8_t bCountryCode;
uint8_t bNumDescriptors;
uint8_t bClassDescriptorType;
uint16_t wClassDescriptorLength;
} __attribute__ ((packed));
#define USB_HID_UNHANDLED 0xFF
/** usb_hid_reset - Reset all state */
void usb_hid_reset(void);
/** usb_hid_control_rx - Handle a received EP0 frame in the HID layer.
* @ctl: The received control frame
* @reply_buf: Buffer for reply. Buffer size is USBCFG_EP0_MAXSIZE.
* On success, returns the number of bytes in reply_buf.
* On failure, returns USB_APP_UNHANDLED. */
uint8_t usb_hid_control_rx(struct usb_ctrl *ctl, uint8_t *reply_buf);
/** usb_hid_ep1_rx - Handle a received EP1 frame in the HID layer.
* @data: The received frame
* @size: The size of the received frame
* @reply_buf: Buffer for reply. Buffer size is USBCFG_EP1_MAXSIZE.
* On success, returns the number of bytes in reply_buf.
* On failure, returns USB_HID_UNHANDLED. */
uint8_t usb_hid_ep1_rx(uint8_t *data, uint8_t size,
uint8_t *reply_buf);
/** usb_hid_ep1_tx_poll - TX data poll on EP1. */
uint8_t usb_hid_ep1_tx_poll(uint8_t *buf);
/** usb_hid_ep2_rx - Handle a received EP2 frame in the HID layer.
* @data: The received frame
* @size: The size of the received frame
* @reply_buf: Buffer for reply. Buffer size is USBCFG_EP2_MAXSIZE.
* On success, returns the number of bytes in reply_buf.
* On failure, returns USB_HID_UNHANDLED. */
uint8_t usb_hid_ep2_rx(uint8_t *data, uint8_t size,
uint8_t *reply_buf);
/** usb_hid_ep2_tx_poll - TX data poll on EP2. */
uint8_t usb_hid_ep2_tx_poll(uint8_t *buf);
uint16_t usb_hid_get_descriptor_length(void);
#endif /* USBSTACK_HID_H_ */
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