tee_spi.h

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#ifndef __TEE_SPI_H__
#define __TEE_SPI_H__

#include <stdint.h>
#include <tee_internal_api.h>
#include <driver/spi/spi.h>

typedef struct {
    uint32_t speedHz; 
    uint8_t bitsPerWord; 
    uint8_t CPOL; 
    uint8_t CPHA; 
    bool isDMAMode; 
    bool manualClockControl; 
} TEES_SPIConfig;

typedef struct {
    void *bufAddr; 
    size_t bufLen; 
    size_t transferredLen; 
} TEES_SPITransfer;

/* DMA specific */
DSO_EXPORT TEE_Result TEES_SPIDMAInit(uintptr_t address);

DSO_EXPORT TEE_Result TEES_SPITestDMA(void);
struct __TEES_SPIHandlerImpl;

typedef struct __TEES_SPIHandlerImpl* TEES_SPIHandler;

DSO_EXPORT TEE_Result TEES_SPIInit(uint32_t port, const TEES_SPIConfig *cfg, TEES_SPIHandler *handler);

DSO_EXPORT TEE_Result TEES_SPIExit(TEES_SPIHandler handler);

DSO_EXPORT TEE_Result TEES_SPISetConfig(TEES_SPIHandler handler, const TEES_SPIConfig *cfg);

DSO_EXPORT TEE_Result TEES_SPISetClockSpeed(TEES_SPIHandler handler, uint32_t speedHz);

DSO_EXPORT TEE_Result TEES_SPISetBitsPerWord(TEES_SPIHandler handler, uint8_t bitsPerWord);

DSO_EXPORT TEE_Result TEES_SPISetDMAMode(TEES_SPIHandler handler, bool isEnabled);

DSO_EXPORT TEE_Result TEES_SPISetCPOL(TEES_SPIHandler handler, uint8_t cpol);

DSO_EXPORT TEE_Result TEES_SPISetCPHA(TEES_SPIHandler handler, uint8_t cpha);

DSO_EXPORT TEE_Result TEES_SPIClockEnable(TEES_SPIHandler handler);

DSO_EXPORT TEE_Result TEES_SPIClockDisable(TEES_SPIHandler handler);

DSO_EXPORT TEE_Result TEES_SPIWrite(TEES_SPIHandler handler, TEES_SPITransfer *tx);

DSO_EXPORT TEE_Result TEES_SPIRead(TEES_SPIHandler handler, TEES_SPITransfer *rx);

DSO_EXPORT TEE_Result TEES_SPIWriteRead(TEES_SPIHandler handler, TEES_SPITransfer *tx, TEES_SPITransfer *rx);

#ifndef __HIDE_INTERNAL_FUNCTIONS__

DSO_EXPORT TEE_Result TEES_SPISetLoopback(TEES_SPIHandler handler, bool isEnabled);
#endif /* __HIDE_INTERNAL_FUNCTIONS__ */

#endif /* __TEE_SPI_H__ */