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![Kuninori Morimoto](/assets/img/avatar_default.png)
soc_pcm_trigger() calls DAI/Component/Link trigger, but some of them might be failed. static int soc_pcm_trigger(...) { ... switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: ret = snd_soc_link_trigger(substream, cmd); if (ret < 0) break; (*) ret = snd_soc_pcm_component_trigger(substream, cmd); if (ret < 0) break; ret = snd_soc_pcm_dai_trigger(substream, cmd); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: ret = snd_soc_pcm_dai_trigger(substream, cmd); if (ret < 0) break; ret = snd_soc_pcm_component_trigger(substream, cmd); if (ret < 0) break; ret = snd_soc_link_trigger(substream, cmd); break; } ... } For example, if soc_pcm_trigger() failed at (*) point, we need to rollback previous succeeded trigger. This patch adds trigger mark for DAI/Component/Link, and do STOP if START/RESUME/PAUSE_RELEASE were failed. Because it need to use new rollback parameter, we need to modify DAI/Component/Link trigger functions in the same time. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87a6uycssd.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>
32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* soc-link.h
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*
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* Copyright (C) 2019 Renesas Electronics Corp.
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*/
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#ifndef __SOC_LINK_H
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#define __SOC_LINK_H
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int snd_soc_link_init(struct snd_soc_pcm_runtime *rtd);
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void snd_soc_link_exit(struct snd_soc_pcm_runtime *rtd);
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int snd_soc_link_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
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struct snd_pcm_hw_params *params);
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int snd_soc_link_startup(struct snd_pcm_substream *substream);
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void snd_soc_link_shutdown(struct snd_pcm_substream *substream,
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int rollback);
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int snd_soc_link_prepare(struct snd_pcm_substream *substream);
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int snd_soc_link_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params);
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void snd_soc_link_hw_free(struct snd_pcm_substream *substream,
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int rollback);
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int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd,
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int rollback);
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int snd_soc_link_compr_startup(struct snd_compr_stream *cstream);
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void snd_soc_link_compr_shutdown(struct snd_compr_stream *cstream,
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int rollback);
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int snd_soc_link_compr_set_params(struct snd_compr_stream *cstream);
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#endif /* __SOC_LINK_H */
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