nxp_afe_dma.c

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/**
 * @file    nxp_afe_dma.c
 * @author  foxBMS Team
 * @date    2020-05-27 (date of creation)
 * @updated 2023-10-12 (date of last update)
 * @version v1.6.0
 * @ingroup DRIVERS
 * @prefix  AFE
 *
 * @brief   Driver for the DMA module for the N775.
 *
 */
 
/*========== Includes =======================================================*/
#include "nxp_afe_dma.h"
 
#include "dma.h"
#include "ftask.h"
#include "io.h"
#include "nxp_mc33775a.h"
#include "os.h"
#include "spi.h"
 
#include <stdint.h>
 
/*========== Macros and Definitions =========================================*/
 
/*========== Static Constant and Variable Definitions =======================*/
 
/*========== Extern Constant and Variable Definitions =======================*/
 
/*========== Static Function Prototypes =====================================*/
 
/*========== Static Function Implementations ================================*/
 
/*========== Extern Function Implementations ================================*/
 
/* Function called on DMA complete interrupts (TX and RX). */
void AFE_DmaCallback(uint8_t spiIndex) {
    FAS_ASSERT((spiIndex == 0u) || (spiIndex == 3u));
    if ((spiIndex == 0u)) {
        /* SPI 1 = Master SPI */
        (void)OS_NotifyIndexedFromIsr(ftsk_taskHandleAfe, N775_NOTIFICATION_TX_INDEX, N775_TX_NOTIFIED_VALUE);
    } else if ((spiIndex == 3u)) {
        /* SPI 4 = Slave SPI */
        dma_spiInterfaces[spiIndex]->GCR1 &= ~SPIEN_BIT;
        /* Set slave SPI pins as GIO to deactivate them */
        dma_spiInterfaces[spiIndex]->PC0 &= 0xFFFFFF00;
        (void)OS_NotifyIndexedFromIsr(ftsk_taskHandleAfe, N775_NOTIFICATION_RX_INDEX, N775_RX_NOTIFIED_VALUE);
    } else {                  /* LCOV_EXCL_LINE */
        FAS_ASSERT(FAS_TRAP); /* LCOV_EXCL_LINE */
    }
}
 
/*========== Externalized Static Function Implementations (Unit Test) =======*/
#ifdef UNITY_UNIT_TEST
#endif