usb_request.h
/*
 * Copyright 2012-2022 Great Scott Gadgets <info@greatscottgadgets.com>
 * Copyright 2012 Jared Boone
 *
 * This file is part of HackRF.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */

#ifndef __USB_REQUEST_H__
#define __USB_REQUEST_H__

#include "usb_type.h"

typedef enum {
	USB_RESPONSE_NONE,
	USB_RESPONSE_IN,
	USB_RESPONSE_OUT,
	USB_RESPONSE_STALL,
} usb_endpoint_type_t;

typedef enum {
	USB_TRANSFER_STAGE_SETUP,
	USB_TRANSFER_STAGE_DATA,
	USB_TRANSFER_STAGE_STATUS,
} usb_transfer_stage_t;

typedef enum {
	USB_REQUEST_STATUS_OK = 0,
	USB_REQUEST_STATUS_STALL = 1,
} usb_request_status_t;

typedef usb_request_status_t (*usb_request_handler_fn)(
	usb_endpoint_t* const endpoint,
	const usb_transfer_stage_t stage);

typedef struct {
	usb_request_handler_fn standard;
	usb_request_handler_fn class;
	usb_request_handler_fn vendor;
	usb_request_handler_fn reserved;
} usb_request_handlers_t;

extern const usb_request_handlers_t usb_request_handlers;

void usb_setup_complete(usb_endpoint_t* const endpoint);

void usb_control_in_complete(usb_endpoint_t* const endpoint);

void usb_control_out_complete(usb_endpoint_t* const endpoint);

#endif //__USB_REQUEST_H__