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dai: fix getting DW-DMA copy size for DMA_CB_TYPE_LLIST 

Fixes DW-DMA copy size calculations for transfers,
which are not using auto reloadable linked lists.
They require manual linked list reload to update
current position, so it should happen before
call to DMA copy.

Signed-off-by: Tomasz Lauda <tomasz.lauda@linux.intel.com>
This commit is contained in:
Tomasz Lauda 2019-03-21 10:28:57 +01:00 committed by Liam Girdwood
parent 4aee58f6cb
commit 7b7e15d678
1 changed files with 8 additions and 3 deletions
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11
src/audio/dai.c
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@ -100,8 +100,9 @@ static void dai_buffer_process(struct comp_dev *dev, struct dma_sg_elem *next)
tracev_dai_with_ids(dev, "dai_buffer_process()");
/* reload lli by default */
next->size = DMA_RELOAD_LLI;
/* reload lli if the last callback wasn't of llist type */
next->size = dd->cb_type == DMA_CB_TYPE_LLIST ? DMA_RELOAD_IGNORE :
DMA_RELOAD_LLI;
/* stop dma copy for pause/stop/xrun */
if (dev->state != COMP_STATE_ACTIVE || dd->xrun) {
@ -171,11 +172,15 @@ static void dai_dma_cb(void *data, uint32_t type, struct dma_sg_elem *next)
switch (type) {
case DMA_CB_TYPE_BLOCK:
case DMA_CB_TYPE_LLIST:
dd->cb_type = type;
next->size = DMA_RELOAD_IGNORE;
pipeline_schedule_copy(dev->pipeline, 0);
break;
case DMA_CB_TYPE_LLIST:
dd->cb_type = type;
next->size = DMA_RELOAD_LLI;
pipeline_schedule_copy(dev->pipeline, 0);
break;
case DMA_CB_TYPE_PROCESS:
dai_buffer_process(dev, next);
break;