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dai: use ibs/obs for dma buffer size calculation #8983

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Merged
kv2019i merged 1 commit into from
Apr 5, 2024
Merged

dai: use ibs/obs for dma buffer size calculation #8983

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20 changes: 18 additions & 2 deletions src/audio/dai-zephyr.c
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Original file line number Diff line number Diff line change
Expand Up @@ -848,12 +848,28 @@ static int dai_set_dma_buffer(struct dai_data *dd, struct comp_dev *dev,

/* calculate DMA buffer size */
period_count = dd->dma->plat_data.period_count;

#if CONFIG_IPC_MAJOR_4
struct ipc4_copier_module_cfg *copier_cfg = dd->dai_spec_config;
uint32_t dma_buff_length_periods;

/* copier ibs/obs is set to size of one period */
if (dev->direction == SOF_IPC_STREAM_CAPTURE)
dma_buff_length_periods = dd->ipc_config.dma_buffer_size / copier_cfg->base.ibs;
else
dma_buff_length_periods = dd->ipc_config.dma_buffer_size / copier_cfg->base.obs;

period_count = MAX(period_count, dma_buff_length_periods);
#else
period_count = MAX(period_count,
SOF_DIV_ROUND_UP(dd->ipc_config.dma_buffer_size, period_bytes));
#endif /* CONFIG_IPC_MAJOR_4 */

if (!period_count) {
comp_err(dev, "dai_set_dma_buffer(): no valid dma buffer period count");
return -EINVAL;
}
period_count = MAX(period_count,
SOF_DIV_ROUND_UP(dd->ipc_config.dma_buffer_size, period_bytes));

buffer_size = ALIGN_UP(period_count * period_bytes, align);
*pc = period_count;

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