hid.h

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/*
 * Copyright (C) 2021 Nils Ollrogge
 *
 * This file is subject to the terms and conditions of the GNU Lesser General
 * Public License v2.1. See the file LICENSE in the top level directory for
 * more details.
 */
 
#pragma once

 
#include <stdint.h>
 
#include "usb/usbus.h"
#include "usb/hid.h"
#include "mutex.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#ifndef CONFIG_USBUS_HID_INTERRUPT_EP_SIZE
#define CONFIG_USBUS_HID_INTERRUPT_EP_SIZE    0x40
#endif

typedef struct usbus_hid_device usbus_hid_device_t;

typedef void (*usbus_hid_cb_t)(usbus_hid_device_t *hid, uint8_t *data,
                               size_t len);

struct usbus_hid_device {
    usbus_handler_t handler_ctrl;   
    usbus_interface_t iface;        
    usbus_endpoint_t *ep_out;       
    usbus_endpoint_t *ep_in;        
    usbus_descr_gen_t hid_descr;    
    const uint8_t *report_desc;     
    size_t report_desc_size;        
    usbus_t *usbus;                 
    size_t occupied;                
    usbus_hid_cb_t cb;              
    event_t tx_ready;               
    mutex_t in_lock;                

    usbdev_ep_buf_t out_buf[CONFIG_USBUS_HID_INTERRUPT_EP_SIZE];

    usbdev_ep_buf_t in_buf[CONFIG_USBUS_HID_INTERRUPT_EP_SIZE];
};

void usbus_hid_init(usbus_t *usbus, usbus_hid_device_t *hid,
                    usbus_hid_cb_t cb, const uint8_t *report_desc,
                    size_t report_desc_size);
 
#ifdef __cplusplus
}
#endif