static void App_udmaTrpdInit(Udma_ChHandle chHandle,
uint8_t *trpdMem,
const void *destBuf,
const void *srcBuf,
uint32_t length)
{
CSL_UdmapTR15 *pTr;
uint32_t cqRingNum = Udma_chGetCqRingNum(chHandle);
/* Make TRPD with TR15 TR type */
UdmaUtils_makeTrpdTr15(trpdMem, 1U, cqRingNum);
/* Setup TR */
pTr = UdmaUtils_getTrpdTr15Pointer(trpdMem, 0U);
pTr->flags = CSL_FMK(UDMAP_TR_FLAGS_TYPE, CSL_UDMAP_TR_FLAGS_TYPE_4D_BLOCK_MOVE_REPACKING_INDIRECTION);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_STATIC, 0U);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_EOL, CSL_UDMAP_TR_FLAGS_EOL_MATCH_SOL_EOL);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_EVENT_SIZE, CSL_UDMAP_TR_FLAGS_EVENT_SIZE_COMPLETION);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_TRIGGER0, CSL_UDMAP_TR_FLAGS_TRIGGER_NONE);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_TRIGGER0_TYPE, CSL_UDMAP_TR_FLAGS_TRIGGER_TYPE_ALL);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_TRIGGER1, CSL_UDMAP_TR_FLAGS_TRIGGER_NONE);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_TRIGGER1_TYPE, CSL_UDMAP_TR_FLAGS_TRIGGER_TYPE_ALL);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_CMD_ID, 0x25U); /* This will come back in TR response */
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_SA_INDIRECT, 0U);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_DA_INDIRECT, 0U);
pTr->flags |= CSL_FMK(UDMAP_TR_FLAGS_EOP, 1U);
pTr->icnt0 = length;
pTr->icnt1 = 1U;
pTr->icnt2 = 1U;
pTr->icnt3 = 1U;
pTr->dim1 = pTr->icnt0;
pTr->dim2 = (pTr->icnt0 * pTr->icnt1);
pTr->dim3 = (pTr->icnt0 * pTr->icnt1 * pTr->icnt2);
pTr->addr = (uint64_t) Udma_defaultVirtToPhyFxn(srcBuf, 0U, NULL);
pTr->fmtflags = 0x00000000U; /* 线性寻址, 1 byte per elem */
pTr->dicnt0 = length;
pTr->dicnt1 = 1U;
pTr->dicnt2 = 1U;
pTr->dicnt3 = 1U;
pTr->ddim1 = pTr->dicnt0;
pTr->ddim2 = (pTr->dicnt0 * pTr->dicnt1);
pTr->ddim3 = (pTr->dicnt0 * pTr->dicnt1 * pTr->dicnt2);
pTr->daddr = (uint64_t) Udma_defaultVirtToPhyFxn(destBuf, 0U, NULL);
/* 缓存回写 */
CacheP_wb(trpdMem, UDMA_TEST_TRPD_SIZE, CacheP_TYPE_ALLD);
return;
}
看了官方的例程有这个配置，是每次使用DMA都需要做这些配置吗？还是只是用到了TR15的模式才需要的？
