/*
 * tusb.c
 *
 *  Created on: Nov 27, 2012
 *      Author: hathach (thachha@live.com)
 */

/*
 * Software License Agreement (BSD License)
 * Copyright (c) 2012, hathach (thachha@live.com)
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * This file is part of the tiny usb stack.
 */

#include "tusb.h"

TUSB_Error_t tusb_init(void)
{
  /* HARDWARE INIT */

	// TODO usb abstract later
  /* Enable AHB clock to the USB block and USB RAM. */
  LPC_SYSCON->SYSAHBCLKCTRL |= ((0x1<<14) | (0x1<<27));

  /* Pull-down is needed, or internally, VBUS will be floating. This is to
  address the wrong status in VBUSDebouncing bit in CmdStatus register.  */
  LPC_IOCON->PIO0_3   &= ~0x1F;
  LPC_IOCON->PIO0_3   |= (0x01<<0);            /* Secondary function VBUS */
  LPC_IOCON->PIO0_6   &= ~0x07;
  LPC_IOCON->PIO0_6   |= (0x01<<0);            /* Secondary function SoftConn */

#ifdef CFG_TUSB_HOST
  ASSERT_ERROR( hcd_init() );
#endif

#ifdef CFG_TUSB_DEVICE
  ASSERT_ERROR( dcd_init() );
#endif

  return LPC_OK;
}