tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2//
3// Copyright 2021 NXP
4//
5// Author: Daniel Baluta <daniel.baluta@nxp.com>
6
7#include <sound/soc.h>
8#include <sound/sof.h>
9#include <sound/compress_driver.h>
10#include "sof-audio.h"
11#include "sof-priv.h"
12
13static void snd_sof_compr_fragment_elapsed_work(struct work_struct *work)
14{
15 struct snd_sof_pcm_stream *sps =
16 container_of(work, struct snd_sof_pcm_stream,
17 period_elapsed_work);
18
19 snd_compr_fragment_elapsed(sps->cstream);
20}
21
22void snd_sof_compr_init_elapsed_work(struct work_struct *work)
23{
24 INIT_WORK(work, snd_sof_compr_fragment_elapsed_work);
25}
26
27/*
28 * sof compr fragment elapse, this could be called in irq thread context
29 */
30void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream)
31{
32 struct snd_soc_component *component;
33 struct snd_soc_pcm_runtime *rtd;
34 struct snd_sof_pcm *spcm;
35
36 if (!cstream)
37 return;
38
39 rtd = cstream->private_data;
40 component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
41
42 spcm = snd_sof_find_spcm_dai(component, rtd);
43 if (!spcm) {
44 dev_err(component->dev,
45 "fragment elapsed called for unknown stream!\n");
46 return;
47 }
48
49 /* use the same workqueue-based solution as for PCM, cf. snd_sof_pcm_elapsed */
50 schedule_work(&spcm->stream[cstream->direction].period_elapsed_work);
51}