ASoC: msm: qdsp6v2: requeue read buffers in mmap device switch (43044024) · Commits · e / devices / android_kernel_sony_msm8994

When device switch happens, ASM might return a 0 length buffer. For MMAP style capture cases, buffers need to be re-queued at the event handler for this case, otherwise ASM will have no buffers to read data into after the device is over successful. CRs-fixed: 700614 Change-Id: I2b8930a3058bbe3979405d5de04d3371291db42d Signed-off-by:

Banajit Goswami <bgoswami@codeaurora.org>

sound/soc/msm/qdsp6v2/msm-pcm-q6-v2.c

+10 −1

Original line number	Diff line number	Diff line
		@@ -205,7 +205,16 @@ static void event_handler(uint32_t opcode,
		pr_debug("%s: reclaim flushed buf in_count %x\n",
		__func__, atomic_read(&prtd->in_count));
		prtd->pcm_irq_pos += prtd->pcm_count;
		if (prtd->mmap_flag) {
		if (q6asm_is_cpu_buf_avail_nolock(OUT,
		prtd->audio_client,
		&size, &idx) &&
		(substream->runtime->status->state ==
		SNDRV_PCM_STATE_RUNNING))
		q6asm_read_nolock(prtd->audio_client);
		} else {
		atomic_inc(&prtd->in_count);
		}
		if (atomic_read(&prtd->in_count) == prtd->periods) {
		pr_info("%s: reclaimed all bufs\n", __func__);
		if (atomic_read(&prtd->start))