File content as of revision 32:8298a2fb074f:

/**
 *
 * \file
 *
 * \brief This module contains NMC1000 SPI protocol bus APIs implementation.
 *
 * Copyright (c) 2016-2017 Atmel Corporation. All rights reserved.
 *
 * \asf_license_start
 *
 * \page License
 *
 * 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.
 *
 * 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
 *
 */

#ifndef _NMSPI_H_
#define _NMSPI_H_

#include "common/include/nm_common.h"

#ifdef __cplusplus
     extern "C" {
#endif

/**
*	@fn		nm_spi_init
*	@brief	Initialize the SPI
*	@return	ZERO in case of success and M2M_ERR_BUS_FAIL in case of failure
*/
sint8 nm_spi_init(void);
/**
*	@fn		nm_spi_reset
*	@brief	reset the SPI
*	@return	ZERO in case of success and M2M_ERR_BUS_FAIL in case of failure
*/
sint8 nm_spi_reset(void);

/**
*	@fn		nm_spi_deinit
*	@brief	DeInitialize the SPI 
*	@return	ZERO in case of success and M2M_ERR_BUS_FAIL in case of failure
*/ 
sint8 nm_spi_deinit(void);

/**
*	@fn		nm_spi_read_reg
*	@brief	Read register
*	@param [in]	u32Addr
*				Register address
*	@return	Register value
*/
uint32 nm_spi_read_reg(uint32 u32Addr);

/**
*	@fn		nm_spi_read_reg_with_ret
*	@brief	Read register with error code return
*	@param [in]	u32Addr
*				Register address
*	@param [out]	pu32RetVal
*				Pointer to u32 variable used to return the read value
*	@return	ZERO in case of success and M2M_ERR_BUS_FAIL in case of failure
*/
sint8 nm_spi_read_reg_with_ret(uint32 u32Addr, uint32* pu32RetVal);

/**
*	@fn		nm_spi_write_reg
*	@brief	write register
*	@param [in]	u32Addr
*				Register address
*	@param [in]	u32Val
*				Value to be written to the register
*	@return	ZERO in case of success and M2M_ERR_BUS_FAIL in case of failure
*/
sint8 nm_spi_write_reg(uint32 u32Addr, uint32 u32Val);

/**
*	@fn		nm_spi_read_block
*	@brief	Read block of data
*	@param [in]	u32Addr
*				Start address
*	@param [out]	puBuf
*				Pointer to a buffer used to return the read data
*	@param [in]	u16Sz
*				Number of bytes to read. The buffer size must be >= u16Sz
*	@return	ZERO in case of success and M2M_ERR_BUS_FAIL in case of failure
*/
sint8 nm_spi_read_block(uint32 u32Addr, uint8 *puBuf, uint16 u16Sz);

/**
*	@fn		nm_spi_write_block
*	@brief	Write block of data
*	@param [in]	u32Addr
*				Start address
*	@param [in]	puBuf
*				Pointer to the buffer holding the data to be written
*	@param [in]	u16Sz
*				Number of bytes to write. The buffer size must be >= u16Sz
*	@return	ZERO in case of success and M2M_ERR_BUS_FAIL in case of failure
*/
sint8 nm_spi_write_block(uint32 u32Addr, uint8 *puBuf, uint16 u16Sz);

#ifdef __cplusplus
	 }
#endif

#endif /* _NMSPI_H_ */