ruuvi_interface_spi.h

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#ifndef RUUVI_INTERFACE_SPI_H
#define RUUVI_INTERFACE_SPI_H
#include "ruuvi_driver_enabled_modules.h"
#include "ruuvi_driver_error.h"
#include "ruuvi_interface_gpio.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
 
#if RI_SPI_ENABLED
#  define RUUVI_NRF5_SDK15_SPI_ENABLED RUUVI_NRF5_SDK15_ENABLED
#endif
 
typedef enum
{
    RI_SPI_MODE_0, 
    RI_SPI_MODE_1, 
    RI_SPI_MODE_2, 
    RI_SPI_MODE_3  
} ri_spi_mode_t;
 
typedef enum
{
    RI_SPI_FREQUENCY_1M, 
    RI_SPI_FREQUENCY_2M, 
    RI_SPI_FREQUENCY_4M, 
    RI_SPI_FREQUENCY_8M, 
} ri_spi_frequency_t;
 
typedef struct
{
    ri_gpio_id_t mosi;           
    ri_gpio_id_t miso;           
    ri_gpio_id_t sclk;           
    ri_gpio_id_t * ss_pins;      
    size_t ss_pins_number;                    
    ri_spi_frequency_t frequency; 
    ri_spi_mode_t mode;           
} ri_spi_init_config_t;
 
rd_status_t ri_spi_init (const ri_spi_init_config_t *
                         const config);
 
bool ri_spi_is_init();
 
rd_status_t ri_spi_uninit();
 
rd_status_t ri_spi_xfer_blocking (const uint8_t * const p_tx,
                                  const size_t tx_len, uint8_t * const p_rx, const size_t rx_len);
/* @} */
#endif