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s32k3xx:EDMA Add Error handeling

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This commit is contained in:
David Sidrane 2022-10-18 11:17:59 -07:00 committed by Xiang Xiao
parent 1d84656f79
commit ddc178122e
1 changed files with 25 additions and 1 deletions
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26
arch/arm/src/s32k3xx/s32k3xx_edma.c
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@ -749,6 +749,7 @@ static int s32k3xx_edma_interrupt(int irq, void *context, void *arg)
struct s32k3xx_dmach_s *dmach;
uint32_t regval32;
uint32_t errval32;
uint8_t chan;
int result;
@ -760,6 +761,29 @@ static int s32k3xx_edma_interrupt(int irq, void *context, void *arg)
chan = dmach->chan;
DEBUGASSERT(chan < S32K3XX_EDMA_NCHANNELS && dmach == &g_edma.dmach[chan]);
/* Get the eDMA Error Status register value. */
errval32 = getreg32(S32K3XX_EDMA_TCD[chan] +
S32K3XX_EDMA_CH_ES_OFFSET);
if (errval32 & EDMA_CH_ES_ERR)
{
DEBUGASSERT(dmach->state == S32K3XX_DMA_ACTIVE);
/* Clear the error */
putreg32(EDMA_CH_ES_ERR, S32K3XX_EDMA_TCD[chan] +
S32K3XX_EDMA_CH_ES_OFFSET);
/* Clear the pending eDMA channel interrupt */
putreg32(EDMA_CH_INT, S32K3XX_EDMA_TCD[chan] +
S32K3XX_EDMA_CH_INT_OFFSET);
s32k3xx_dmaterminate(dmach, -EIO);
return OK;
}
/* Check for an eDMA pending interrupt on this channel */
regval32 = getreg32(S32K3XX_EDMA_INT);
@ -1332,7 +1356,7 @@ int s32k3xx_dmach_start(DMACH_HANDLE handle, edma_callback_t callback,
regval = getreg32(S32K3XX_EDMA_TCD[chan]
+ S32K3XX_EDMA_CH_CSR_OFFSET);
regval |= EDMA_CH_CSR_ERQ;
regval |= EDMA_CH_CSR_ERQ | EDMA_CH_CSR_EEI;
putreg32(regval, S32K3XX_EDMA_TCD[chan] + S32K3XX_EDMA_CH_CSR_OFFSET);
}