This reverts commit 7f9110c4c0ca26a67e0e4baa91e5f0bcc31a1c3e.

This does not work when both buffer data consumer and producer are DMACs.

Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com --- src/audio/dai.c | 108 +++++++++++++++++++++++++++----------------------------- 1 file changed, 52 insertions(+), 56 deletions(-)

diff --git a/src/audio/dai.c b/src/audio/dai.c index 1383c14f..ed2f9f65 100644 --- a/src/audio/dai.c +++ b/src/audio/dai.c @@ -78,6 +78,7 @@ static void dai_dma_cb(void *data, uint32_t type, struct dma_sg_elem *next) struct comp_dev *dev = (struct comp_dev *)data; struct dai_data *dd = comp_get_drvdata(dev); struct comp_buffer *dma_buffer; + uint32_t copied_size;

trace_dai("irq");

@@ -113,6 +114,57 @@ static void dai_dma_cb(void *data, uint32_t type, struct dma_sg_elem *next) return; }

+ if (dev->params.direction == SOF_IPC_STREAM_PLAYBACK) { + dma_buffer = list_first_item(&dev->bsource_list, + struct comp_buffer, sink_list); + + copied_size = dd->last_bytes ? dd->last_bytes : dd->period_bytes; + + /* recalc available buffer space */ + comp_update_buffer_consume(dma_buffer, copied_size); + + /* writeback buffer contents from cache */ + dcache_writeback_region(dma_buffer->r_ptr, copied_size); + + /* update host position(in bytes offset) for drivers */ + dev->position += copied_size; + if (dd->dai_pos) { + dd->dai_pos_blks += copied_size; + *dd->dai_pos = dd->dai_pos_blks + + dma_buffer->r_ptr - dma_buffer->addr; + } + + /* make sure there is availble bytes for next period */ + if (dma_buffer->avail < dd->period_bytes) { + trace_dai_error("xru"); + comp_underrun(dev, dma_buffer, copied_size, 0); + } + + } else { + dma_buffer = list_first_item(&dev->bsink_list, + struct comp_buffer, source_list); + + /* invalidate buffer contents */ + dcache_invalidate_region(dma_buffer->w_ptr, dd->period_bytes); + + /* recalc available buffer space */ + comp_update_buffer_produce(dma_buffer, dd->period_bytes); + + /* update positions */ + dev->position += dd->period_bytes; + if (dd->dai_pos) { + dd->dai_pos_blks += dd->period_bytes; + *dd->dai_pos = dd->dai_pos_blks + + dma_buffer->w_ptr - dma_buffer->addr; + } + + /* make sure there is free bytes for next period */ + if (dma_buffer->free < dd->period_bytes) { + trace_dai_error("xro"); + comp_overrun(dev, dma_buffer, dd->period_bytes, 0); + } + } + /* notify pipeline that DAI needs its buffer processed */ if (dev->state == COMP_STATE_ACTIVE) pipeline_schedule_copy(dev->pipeline, 0); @@ -550,62 +602,6 @@ static int dai_comp_trigger(struct comp_dev *dev, int cmd) /* copy and process stream data from source to sink buffers */ static int dai_copy(struct comp_dev *dev) { - struct dai_data *dd = comp_get_drvdata(dev); - struct comp_buffer *dma_buffer; - uint32_t copied_size; - - if (dev->params.direction == SOF_IPC_STREAM_PLAYBACK) { - dma_buffer = list_first_item(&dev->bsource_list, - struct comp_buffer, sink_list); - - copied_size = dd->last_bytes ? - dd->last_bytes : dd->period_bytes; - - /* recalc available buffer space */ - comp_update_buffer_consume(dma_buffer, copied_size); - - /* writeback buffer contents from cache */ - dcache_writeback_region(dma_buffer->r_ptr, copied_size); - - /* update host position(in bytes offset) for drivers */ - dev->position += copied_size; - if (dd->dai_pos) { - dd->dai_pos_blks += copied_size; - *dd->dai_pos = dd->dai_pos_blks + - dma_buffer->r_ptr - dma_buffer->addr; - } - - /* make sure there is available bytes for next period */ - if (dma_buffer->avail < dd->period_bytes) { - trace_dai_error("xru"); - comp_underrun(dev, dma_buffer, copied_size, 0); - } - - } else { - dma_buffer = list_first_item(&dev->bsink_list, - struct comp_buffer, source_list); - - /* invalidate buffer contents */ - dcache_invalidate_region(dma_buffer->w_ptr, dd->period_bytes); - - /* recalc available buffer space */ - comp_update_buffer_produce(dma_buffer, dd->period_bytes); - - /* update positions */ - dev->position += dd->period_bytes; - if (dd->dai_pos) { - dd->dai_pos_blks += dd->period_bytes; - *dd->dai_pos = dd->dai_pos_blks + - dma_buffer->w_ptr - dma_buffer->addr; - } - - /* make sure there is free bytes for next period */ - if (dma_buffer->free < dd->period_bytes) { - trace_dai_error("xro"); - comp_overrun(dev, dma_buffer, dd->period_bytes, 0); - } - } - return 0; }