/*
 * (C) 2018, sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
#include "atmel_start.h"
#include "usb_start.h"

#if CONF_USBD_HS_SP
static uint8_t single_desc_bytes[] = {
    /* Device descriptors and Configuration descriptors list. */
    DFUD_HS_DESCES_LS_FS};
static uint8_t single_desc_bytes_hs[] = {
    /* Device descriptors and Configuration descriptors list. */
    DFUD_HS_DESCES_HS};
#else
static uint8_t single_desc_bytes[] = {
    /* Device descriptors and Configuration descriptors list. */
    DFUD_DESCES_LS_FS};
#endif

static struct usbd_descriptors single_desc[]
    = {{single_desc_bytes, single_desc_bytes + sizeof(single_desc_bytes)}
#if CONF_USBD_HS_SP
       ,
       {single_desc_bytes_hs, single_desc_bytes_hs + sizeof(single_desc_bytes_hs)}
#endif
};

/** Ctrl endpoint buffer */
static uint8_t ctrl_buffer[64];

/**
 * \brief USB DFU Init
 */
void usb_dfu_init(void)
{
	/* usb stack init */
	usbdc_init(ctrl_buffer);

	/* usbdc_register_funcion inside */
	dfudf_init();

	usbdc_start(single_desc);
	usbdc_attach();
}

/**
 * Example of using CDC ACM Function.
 * \note
 * In this example, we will use a PC as a USB host:
 * - Connect the DEBUG USB on XPLAINED board to PC for program download.
 * - Connect the TARGET USB on XPLAINED board to PC for running program.
 * The application will behave as a virtual COM.
 * - Open a HyperTerminal or other COM tools in PC side.
 * - Send out a character or string and it will echo the content received.
 */
void usb_dfu(void)
{
	while (!dfudf_is_enabled()) {
		// wait DFU to be installed
	};

	while (1) {
	}
}

void usb_init(void)
{

	usb_dfu_init();
}