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refactor(i2s): uses GDMA link to mount DMA descriptors

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This commit is contained in:
Chen Chen
2026-08-14 15:19:56 +08:00
parent 3acbac7b1c
commit ef96740d14
7 changed files with 210 additions and 117 deletions
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components/esp_driver_i2s/i2s_tdm.c
+3 -3
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@@ -169,9 +169,9 @@ static esp_err_t i2s_tdm_set_slot(i2s_chan_handle_t handle, const i2s_tdm_slot_c
/* The DMA buffer need to re-allocate if the buffer size changed.
* Skip when GDMA is not the data path (e.g. Bluetooth destination), since the channel never owns a DMA buffer. */
if (handle->destination == I2S_DESTINATION_DMA && handle->dma.buf_size != buf_size) {
ESP_RETURN_ON_ERROR(i2s_free_dma_desc(handle), TAG, "failed to free the old dma descriptor");
ESP_RETURN_ON_ERROR(i2s_alloc_dma_desc(handle, buf_size),
TAG, "allocate memory for dma descriptor failed");
ESP_RETURN_ON_ERROR(i2s_free_dma_resources(handle), TAG, "failed to free the old dma resources");
ESP_RETURN_ON_ERROR(i2s_alloc_dma_resources(handle, buf_size),
TAG, "allocate dma resources failed");
}
/* Share bck and ws signal in full-duplex mode */
if (handle->controller->full_duplex) {