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dai: use ibs/obs for dma buffer size calculation 

Use ibs/obs size from ipc4_base_module_cfg to properly calculate
period_count. It is especially important when FW aggregation mode
is enabled and there are multiple DMAs allocated under one copier
instance. That way period count for every DMA will be correctly
evaluated and used for DMA buffer size calculation.

Signed-off-by: Ievgen Ganakov <ievgen.ganakov@intel.com>
This commit is contained in:
Ievgen Ganakov 2024-02-02 11:43:25 +01:00 committed by Kai Vehmanen
parent 1e9a497316
commit 2126e2896e
1 changed files with 18 additions and 2 deletions
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20
src/audio/dai-zephyr.c
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@ -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;