/**
 * \file halPhy.h
 *
 * \brief ATSAMD21 PHY interface
 *
 * Copyright (C) 2012-2014, Atmel Corporation. All rights reserved.
 *
 * \asf_license_start
 *
 * 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 Atmel may not be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 4. This software may only be redistributed and used in connection with an
 *    Atmel microcontroller product.
 *
 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
 *
 * \asf_license_stop
 *
 * Modification and other use of this code is subject to Atmel's Limited
 * License Agreement (license.txt).
 *
 * $Id: halPhy.h 9267 2014-03-18 21:46:19Z ataradov $
 *
 */

#ifndef _HAL_PHY_H_
#define _HAL_PHY_H_

/*- Includes ---------------------------------------------------------------*/
#include <stdint.h>
#include "hal.h"
#include "halGpio.h"

/*- Definitions ------------------------------------------------------------*/
#if defined(PLATFORM_XPLAINED_PRO_SAMR21)
  // ATSAMR21xxx internal connection to the AT86RF233
  HAL_GPIO_PIN(PHY_RST,    B, 15);
  HAL_GPIO_PIN(PHY_IRQ,    B, 0);
  HAL_GPIO_PIN(PHY_SLP_TR, A, 20);
  HAL_GPIO_PIN(PHY_CS,     B, 31);
  HAL_GPIO_PIN(PHY_MISO,   C, 19);
  HAL_GPIO_PIN(PHY_MOSI,   B, 30);
  HAL_GPIO_PIN(PHY_SCK,    C, 18);
#endif

/*- Prototypes -------------------------------------------------------------*/
uint8_t HAL_PhySpiWriteByte(uint8_t value);
void HAL_PhyReset(void);
void halPhyInit(void);

/*- Implementations --------------------------------------------------------*/

/*************************************************************************//**
*****************************************************************************/
INLINE uint8_t HAL_PhySpiWriteByteInline(uint8_t value)
{
  SERCOM4->SPI.DATA.reg = value;
  while (!SERCOM4->SPI.INTFLAG.bit.RXC);
  return SERCOM4->SPI.DATA.reg;
}

/*************************************************************************//**
*****************************************************************************/
INLINE void HAL_PhySpiSelect(void)
{
  HAL_GPIO_PHY_CS_clr();
}

/*************************************************************************//**
*****************************************************************************/
INLINE void HAL_PhySpiDeselect(void)
{
  HAL_GPIO_PHY_CS_set();
}

/*************************************************************************//**
*****************************************************************************/
INLINE void HAL_PhySlpTrSet(void)
{
  HAL_GPIO_PHY_SLP_TR_set();
}

/*************************************************************************//**
*****************************************************************************/
INLINE void HAL_PhySlpTrClear(void)
{
  HAL_GPIO_PHY_SLP_TR_clr();
}

#endif // _HAL_PHY_H_