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// SPDX-License-Identifier: GPL-2.0
//
// soc-link.c
//
// Copyright (C) 2019 Renesas Electronics Corp.
// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
//
#include <sound/soc.h>
#include <sound/soc-link.h>
#define soc_link_ret(rtd, ret) _soc_link_ret(rtd, __func__, ret)
static inline int _soc_link_ret(struct snd_soc_pcm_runtime *rtd,
const char *func, int ret)
{
/* Positive, Zero values are not errors */
if (ret >= 0)
return ret;
/* Negative values might be errors */
switch (ret) {
case -EPROBE_DEFER:
case -ENOTSUPP:
break;
default:
dev_err(rtd->dev,
"ASoC: error at %s on %s: %d\n",
func, rtd->dai_link->name, ret);
}
return ret;
}
/*
* We might want to check substream by using list.
* In such case, we can update these macros.
*/
#define soc_link_mark_push(rtd, substream, tgt) ((rtd)->mark_##tgt = substream)
#define soc_link_mark_pop(rtd, substream, tgt) ((rtd)->mark_##tgt = NULL)
#define soc_link_mark_match(rtd, substream, tgt) ((rtd)->mark_##tgt == substream)
int snd_soc_link_init(struct snd_soc_pcm_runtime *rtd)
{
int ret = 0;
if (rtd->dai_link->init)
ret = rtd->dai_link->init(rtd);
return soc_link_ret(rtd, ret);
}
void snd_soc_link_exit(struct snd_soc_pcm_runtime *rtd)
{
if (rtd->dai_link->exit)
rtd->dai_link->exit(rtd);
}
int snd_soc_link_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
int ret = 0;
if (rtd->dai_link->be_hw_params_fixup)
ret = rtd->dai_link->be_hw_params_fixup(rtd, params);
return soc_link_ret(rtd, ret);
}
int snd_soc_link_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
int ret = 0;
if (rtd->dai_link->ops &&
rtd->dai_link->ops->startup)
ret = rtd->dai_link->ops->startup(substream);
/* mark substream if succeeded */
if (ret == 0)
soc_link_mark_push(rtd, substream, startup);
return soc_link_ret(rtd, ret);
}
void snd_soc_link_shutdown(struct snd_pcm_substream *substream,
int rollback)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
if (rollback && !soc_link_mark_match(rtd, substream, startup))
return;
if (rtd->dai_link->ops &&
rtd->dai_link->ops->shutdown)
rtd->dai_link->ops->shutdown(substream);
/* remove marked substream */
soc_link_mark_pop(rtd, substream, startup);
}
int snd_soc_link_prepare(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
int ret = 0;
if (rtd->dai_link->ops &&
rtd->dai_link->ops->prepare)
ret = rtd->dai_link->ops->prepare(substream);
return soc_link_ret(rtd, ret);
}
int snd_soc_link_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
int ret = 0;
if (rtd->dai_link->ops &&
rtd->dai_link->ops->hw_params)
ret = rtd->dai_link->ops->hw_params(substream, params);
/* mark substream if succeeded */
if (ret == 0)
soc_link_mark_push(rtd, substream, hw_params);
return soc_link_ret(rtd, ret);
}
void snd_soc_link_hw_free(struct snd_pcm_substream *substream, int rollback)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
if (rollback && !soc_link_mark_match(rtd, substream, hw_params))
return;
if (rtd->dai_link->ops &&
rtd->dai_link->ops->hw_free)
rtd->dai_link->ops->hw_free(substream);
/* remove marked substream */
soc_link_mark_pop(rtd, substream, hw_params);
}
static int soc_link_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
int ret = 0;
if (rtd->dai_link->ops &&
rtd->dai_link->ops->trigger)
ret = rtd->dai_link->ops->trigger(substream, cmd);
return soc_link_ret(rtd, ret);
}
int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd,
int rollback)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
int ret = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
ret = soc_link_trigger(substream, cmd);
if (ret < 0)
break;
soc_link_mark_push(rtd, substream, trigger);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (rollback && !soc_link_mark_match(rtd, substream, trigger))
break;
ret = soc_link_trigger(substream, cmd);
soc_link_mark_pop(rtd, substream, startup);
}
return ret;
}
int snd_soc_link_compr_startup(struct snd_compr_stream *cstream)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
int ret = 0;
if (rtd->dai_link->compr_ops &&
rtd->dai_link->compr_ops->startup)
ret = rtd->dai_link->compr_ops->startup(cstream);
if (ret == 0)
soc_link_mark_push(rtd, cstream, compr_startup);
return soc_link_ret(rtd, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_link_compr_startup);
void snd_soc_link_compr_shutdown(struct snd_compr_stream *cstream,
int rollback)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
if (rollback && !soc_link_mark_match(rtd, cstream, compr_startup))
return;
if (rtd->dai_link->compr_ops &&
rtd->dai_link->compr_ops->shutdown)
rtd->dai_link->compr_ops->shutdown(cstream);
soc_link_mark_pop(rtd, cstream, compr_startup);
}
EXPORT_SYMBOL_GPL(snd_soc_link_compr_shutdown);
int snd_soc_link_compr_set_params(struct snd_compr_stream *cstream)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
int ret = 0;
if (rtd->dai_link->compr_ops &&
rtd->dai_link->compr_ops->set_params)
ret = rtd->dai_link->compr_ops->set_params(cstream);
return soc_link_ret(rtd, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_link_compr_set_params);
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