sam_usart_spi/usart_spi.h

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/*
 * Support and FAQ: visit <a href="https://www.microchip.com/support/">Microchip Support</a>
 */

#ifndef _USART_SPI_H_
#define _USART_SPI_H_

#include "compiler.h"
#include "usart.h"


#ifdef __cplusplus
extern "C" {
#endif


#include "conf_usart_spi.h"

#ifndef CONFIG_USART_SPI_DUMMY
        #define CONFIG_USART_SPI_DUMMY              0xFF
#endif

#ifndef SPI_TYPE_DEFS
#define SPI_TYPE_DEFS
typedef uint8_t spi_flags_t;

typedef uint32_t board_spi_select_id_t;
#endif

typedef uint8_t port_pin_t; 

struct usart_spi_device {
        /* Board specific select id. */
        port_pin_t      id;
};

void usart_spi_init(Usart *p_usart);
void usart_spi_setup_device(Usart *p_usart, struct usart_spi_device *device,
     spi_flags_t flags, unsigned long baud_rate, board_spi_select_id_t sel_id);
void usart_spi_write_single(Usart *p_usart, uint8_t data);
uint32_t usart_spi_write_packet(Usart *p_usart, const uint8_t *data, size_t len);
void usart_spi_read_single(Usart *p_usart, uint8_t *data);
uint32_t usart_spi_read_packet(Usart *p_usart, uint8_t *data, size_t len);
void usart_spi_select_device(Usart *p_usart, struct usart_spi_device *device);
void usart_spi_deselect_device(Usart *p_usart, struct usart_spi_device *device);
uint32_t usart_spi_is_tx_empty(Usart *p_usart);
uint32_t usart_spi_is_rx_ready(Usart *p_usart);
uint32_t usart_spi_is_tx_ready(Usart *p_usart);
uint32_t usart_spi_is_rx_full(Usart *p_usart);
void usart_spi_enable(Usart *p_usart);
void usart_spi_disable(Usart *p_usart);


#ifdef __cplusplus
}
#endif


#endif  /* _USART_SPI_H_ */