cwespressif commented on code in PR #11853:
URL: https://github.com/apache/nuttx/pull/11853#discussion_r1514330060
##########
arch/xtensa/src/esp32s3/esp32s3_dma.c:
##########
@@ -230,34 +231,75 @@ void esp32s3_dma_release(int chan)
* pbuf - RX/TX buffer pointer
* len - RX/TX buffer length
* tx - true: TX mode (transmitter); false: RX mode (receiver)
+ * chan - DMA channel of the receiver/transmitter
*
* Returned Value:
* Bound pbuf data bytes
*
****************************************************************************/
uint32_t esp32s3_dma_setup(struct esp32s3_dmadesc_s *dmadesc, uint32_t num,
- uint8_t *pbuf, uint32_t len, bool tx)
+ uint8_t *pbuf, uint32_t len, bool tx, int chan)
{
int i;
uint32_t regval;
uint32_t bytes = len;
uint8_t *pdata = pbuf;
uint32_t data_len;
uint32_t buf_len;
+ int alignment = 4;
+ int dma_size = ESP32S3_DMA_BUFFER_MAX_SIZE;
+ bool buffer_in_psram = esp32s3_ptr_extram(pdata);
+ int block_size_index = 0;
DEBUGASSERT(dmadesc != NULL);
DEBUGASSERT(num > 0);
DEBUGASSERT(pbuf != NULL);
DEBUGASSERT(len > 0);
+ DEBUGASSERT(chan >= 0 && chan < ESP32S3_DMA_CHAN_MAX);
- for (i = 0; i < num; i++)
+ uint32_t addr = GDMA_CH_REG_ADDR(DMA_IN_CONF0_CH0_REG, chan);
+ bool burst_en = REG_GET_FIELD(addr, DMA_IN_DATA_BURST_EN_CH0);
Review Comment:
Done
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