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i2s: use STAILQ_NEXT instead empty to improve readability

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This commit is contained in:
Xiao Xufeng 2023-04-28 18:48:43 +08:00
parent 88358282d0
commit 7dd054fe6b
1 changed files with 3 additions and 3 deletions
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6
components/driver/i2s/i2s_common.c
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@ -423,7 +423,7 @@ esp_err_t i2s_alloc_dma_desc(i2s_chan_handle_t handle, uint32_t num, uint32_t bu
/* Connect DMA descriptor as a circle */
for (int i = 0; i < num; i++) {
/* Link to the next descriptor */
handle->dma.desc[i]->empty = (uint32_t)((i < (num - 1)) ? (handle->dma.desc[i + 1]) : handle->dma.desc[0]);
STAILQ_NEXT(handle->dma.desc[i], qe) = (i < (num - 1)) ? (handle->dma.desc[i + 1]) : handle->dma.desc[0];
}
if (handle->dir == I2S_DIR_RX) {
i2s_ll_rx_set_eof_num(handle->controller->hal.dev, bufsize);
@ -1088,8 +1088,8 @@ esp_err_t i2s_channel_preload_data(i2s_chan_handle_t tx_handle, const void *src,
/* If the next descriptor is not the first descriptor, keep load to the first descriptor
* otherwise all descriptor has been loaded, break directly, the dma buffer position
* will remain at the end of the last dma buffer */
if (desc_ptr->empty != (uint32_t)tx_handle->dma.desc[0]) {
desc_ptr = (lldesc_t *)desc_ptr->empty;
if (STAILQ_NEXT(desc_ptr, qe) != tx_handle->dma.desc[0]) {
desc_ptr = STAILQ_NEXT(desc_ptr, qe);
tx_handle->dma.curr_ptr = (void *)desc_ptr;
tx_handle->dma.rw_pos = 0;
} else {