spi.h

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#ifndef _PHAL_G4_SPI_H
#define _PHAL_G4_SPI_H
 
#include <stddef.h>
 
#include "common/phal_G4/dma/dma.h"
 
typedef enum {
    SPI_MODE_MASTER = 0,
    SPI_MODE_SLAVE  = 1,
} SPI_Mode;
 
typedef enum {
    SPI_CPOL_IDLE_LOW  = 0,
    SPI_CPOL_IDLE_HIGH = 1,
} SPI_CPOL;
 
typedef enum {
    SPI_CPHA_FIRST_EDGE  = 0,
    SPI_CPHA_SECOND_EDGE = 1,
} SPI_CPHA;
 
typedef struct {
    uint32_t data_rate;          
    uint8_t data_len;            
    SPI_Mode mode;               
    bool nss_sw;                 
    GPIO_TypeDef *nss_gpio_port; 
    uint32_t nss_gpio_pin;       
    SPI_CPOL cpol;               
    SPI_CPHA cpha;               
    PHAL_DMA_Handle_t *rx_dma;   
    PHAL_DMA_Handle_t *tx_dma;   
    volatile bool _busy;                 
    volatile bool _error;                
    volatile bool _direct_mode_error;    
    volatile bool _fifo_overrun;         
    SPI_TypeDef *periph;         
} SPI_InitConfig_t;
 
bool PHAL_SPI_init(SPI_InitConfig_t *handle);
 
void PHAL_SPI_transfer(SPI_InitConfig_t *spi,
                       const uint8_t *out_data,
                       uint8_t *in_data,
                       uint32_t data_len);
 
void PHAL_SPI_transferBlocking(SPI_InitConfig_t *spi,
                       const uint8_t *out_data,
                       uint8_t *in_data,
                       uint32_t data_len);
 
bool PHAL_SPI_busy(const SPI_InitConfig_t *cfg);
 
extern void PHAL_SPI_txCallback(SPI_InitConfig_t *spi);
 
#endif /* _PHAL_G4_SPI_H */