hal/nrf24le1/hal_spi.h

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/* Copyright (c) 2009 Nordic Semiconductor. All Rights Reserved.
 *
 * The information contained herein is confidential property of Nordic 
 * Semiconductor ASA.Terms and conditions of usage are described in detail 
 * in NORDIC SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. 
 *
 * Licensees are granted free, non-transferable use of the information. NO
 * WARRENTY of ANY KIND is provided. This heading must NOT be removed from
 * the file.
 *              
 * $LastChangedRevision: 167 $
 */

#ifndef HAL_SPI_H__
#define HAL_SPI_H__

#include <stdint.h>
#include <stdbool.h>

typedef enum
{
    SPI_CLK_DIV2,        
    SPI_CLK_DIV4,        
    SPI_CLK_DIV8,        
    SPI_CLK_DIV16,       
    SPI_CLK_DIV32,       
    SPI_CLK_DIV64,       
    SPI_CLK_DIV128       
} hal_spi_clkdivider_t;  

typedef enum {
   HAL_SPI_LSB_MSB,      
   HAL_SPI_MSB_LSB       
} hal_spi_byte_order_t;
    
typedef enum {           
   HAL_SPI_MODE_0,       
   HAL_SPI_MODE_1,       
   HAL_SPI_MODE_2,       
   HAL_SPI_MODE_3        
} hal_spi_mode_t;


void hal_spi_master_init(hal_spi_clkdivider_t ck, hal_spi_mode_t mode, hal_spi_byte_order_t bo);

uint8_t hal_spi_master_read_write(uint8_t pLoad);

void hal_spi_slave_init(hal_spi_mode_t mode, hal_spi_byte_order_t bo);

uint8_t hal_spi_slave_rw(uint8_t pLoad);

uint8_t hal_spi_slave_read(void);

void hal_spi_slave_preload(uint8_t pLoad);

bool spi_slave_data_ready(void);

bool hal_spi_slave_csn_high(void);


#endif // HAL_SPI_H__