/*
 * initialization_on_USB_reset.c
 *
 *  Created on: 24-Jul-2023
 *      Author: vivek
 */

#include "initialization_on_USB_reset.h"

int Initialization_on_USB_Reset()
{
	/*
	 * Program device speed [2:0] bits and periodic frame interval
	 *  DCFG.DEVSPD=3'b000: High-speed
	 *  DCFG.DEVSPD=3'b001: Full-speed
	 *  DCFG.DEVSPD=3'b100: Super-speed
	 */
	DCFG_data *dcfg = dcfg_setup();

	dcfg ->DEVSPD = (USB_SPEED & 0x7);

	/**@todo why reserved bit are set, ask FPGA team.*/
	dcfg ->reserved_11_10 = 0x2;

	/*
	 * Refer Table number 1-78 for more information.
	 */
	dcfg ->NUMP = 0x4;

	if(dcfg_write()!=0)
	{
		return -1;
	}

	return 0;
}