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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>
228 lines
5.6 KiB
C
228 lines
5.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// soc-link.c
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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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#include <sound/soc.h>
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#include <sound/soc-link.h>
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#define soc_link_ret(rtd, ret) _soc_link_ret(rtd, __func__, ret)
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static inline int _soc_link_ret(struct snd_soc_pcm_runtime *rtd,
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const char *func, int ret)
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{
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/* Positive, Zero values are not errors */
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if (ret >= 0)
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return ret;
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/* Negative values might be errors */
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switch (ret) {
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case -EPROBE_DEFER:
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case -ENOTSUPP:
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break;
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default:
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dev_err(rtd->dev,
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"ASoC: error at %s on %s: %d\n",
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func, rtd->dai_link->name, ret);
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}
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return ret;
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}
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/*
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* We might want to check substream by using list.
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* In such case, we can update these macros.
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*/
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#define soc_link_mark_push(rtd, substream, tgt) ((rtd)->mark_##tgt = substream)
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#define soc_link_mark_pop(rtd, substream, tgt) ((rtd)->mark_##tgt = NULL)
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#define soc_link_mark_match(rtd, substream, tgt) ((rtd)->mark_##tgt == substream)
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int snd_soc_link_init(struct snd_soc_pcm_runtime *rtd)
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{
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int ret = 0;
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if (rtd->dai_link->init)
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ret = rtd->dai_link->init(rtd);
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return soc_link_ret(rtd, ret);
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}
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void snd_soc_link_exit(struct snd_soc_pcm_runtime *rtd)
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{
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if (rtd->dai_link->exit)
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rtd->dai_link->exit(rtd);
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}
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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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{
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int ret = 0;
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if (rtd->dai_link->be_hw_params_fixup)
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ret = rtd->dai_link->be_hw_params_fixup(rtd, params);
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return soc_link_ret(rtd, ret);
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}
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int snd_soc_link_startup(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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int ret = 0;
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if (rtd->dai_link->ops &&
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rtd->dai_link->ops->startup)
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ret = rtd->dai_link->ops->startup(substream);
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/* mark substream if succeeded */
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if (ret == 0)
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soc_link_mark_push(rtd, substream, startup);
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return soc_link_ret(rtd, ret);
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}
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void snd_soc_link_shutdown(struct snd_pcm_substream *substream,
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int rollback)
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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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if (rollback && !soc_link_mark_match(rtd, substream, startup))
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return;
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if (rtd->dai_link->ops &&
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rtd->dai_link->ops->shutdown)
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rtd->dai_link->ops->shutdown(substream);
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/* remove marked substream */
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soc_link_mark_pop(rtd, substream, startup);
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}
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int snd_soc_link_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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int ret = 0;
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if (rtd->dai_link->ops &&
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rtd->dai_link->ops->prepare)
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ret = rtd->dai_link->ops->prepare(substream);
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return soc_link_ret(rtd, ret);
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}
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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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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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int ret = 0;
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if (rtd->dai_link->ops &&
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rtd->dai_link->ops->hw_params)
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ret = rtd->dai_link->ops->hw_params(substream, params);
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/* mark substream if succeeded */
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if (ret == 0)
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soc_link_mark_push(rtd, substream, hw_params);
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return soc_link_ret(rtd, ret);
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}
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void snd_soc_link_hw_free(struct snd_pcm_substream *substream, int rollback)
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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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if (rollback && !soc_link_mark_match(rtd, substream, hw_params))
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return;
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if (rtd->dai_link->ops &&
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rtd->dai_link->ops->hw_free)
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rtd->dai_link->ops->hw_free(substream);
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/* remove marked substream */
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soc_link_mark_pop(rtd, substream, hw_params);
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}
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static int soc_link_trigger(struct snd_pcm_substream *substream, int cmd)
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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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int ret = 0;
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if (rtd->dai_link->ops &&
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rtd->dai_link->ops->trigger)
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ret = rtd->dai_link->ops->trigger(substream, cmd);
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return soc_link_ret(rtd, ret);
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}
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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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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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int ret = 0;
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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ret = soc_link_trigger(substream, cmd);
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if (ret < 0)
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break;
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soc_link_mark_push(rtd, substream, trigger);
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
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if (rollback && !soc_link_mark_match(rtd, substream, trigger))
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break;
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ret = soc_link_trigger(substream, cmd);
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soc_link_mark_pop(rtd, substream, startup);
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}
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return ret;
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}
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int snd_soc_link_compr_startup(struct snd_compr_stream *cstream)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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int ret = 0;
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if (rtd->dai_link->compr_ops &&
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rtd->dai_link->compr_ops->startup)
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ret = rtd->dai_link->compr_ops->startup(cstream);
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if (ret == 0)
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soc_link_mark_push(rtd, cstream, compr_startup);
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return soc_link_ret(rtd, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_link_compr_startup);
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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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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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if (rollback && !soc_link_mark_match(rtd, cstream, compr_startup))
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return;
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if (rtd->dai_link->compr_ops &&
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rtd->dai_link->compr_ops->shutdown)
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rtd->dai_link->compr_ops->shutdown(cstream);
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soc_link_mark_pop(rtd, cstream, compr_startup);
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}
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EXPORT_SYMBOL_GPL(snd_soc_link_compr_shutdown);
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int snd_soc_link_compr_set_params(struct snd_compr_stream *cstream)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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int ret = 0;
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if (rtd->dai_link->compr_ops &&
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rtd->dai_link->compr_ops->set_params)
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ret = rtd->dai_link->compr_ops->set_params(cstream);
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return soc_link_ret(rtd, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_link_compr_set_params);
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