/*
* Gen1
*/
static int rsnd_gen1_path_init(struct rsnd_priv *priv,
struct rsnd_dai *rdai,
struct rsnd_dai_stream *io)
{
struct rsnd_mod *mod;
int ret;
int id;
/*
* Gen1 is created by SRU/SSI, and this SRU is base module of
* Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
*
* Easy image is..
* Gen1 SRU = Gen2 SCU + SSIU + etc
*
* Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
* using fixed path.
*
* Then, SSI id = SCU id here
*/
/* get SSI's ID */
mod = rsnd_ssi_mod_get_frm_dai(priv,
rsnd_dai_id(priv, rdai),
rsnd_dai_is_play(rdai, io));
id = rsnd_mod_id(mod);
/* SSI */
mod = rsnd_ssi_mod_get(priv, id);
ret = rsnd_dai_connect(rdai, mod, io);
if (ret < 0)
return ret;
/* SCU */
mod = rsnd_scu_mod_get(priv, id);
ret = rsnd_dai_connect(rdai, mod, io);
return ret;
}
static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai);
struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
struct rsnd_mod *mod = rsnd_ssi_mod_get_frm_dai(priv,
rsnd_dai_id(priv, rdai),
rsnd_dai_is_play(rdai, io));
int ssi_id = rsnd_mod_id(mod);
int ret;
unsigned long flags;
rsnd_lock(priv, flags);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
ret = rsnd_dai_stream_init(io, substream);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_platform_call(priv, dai, start, ssi_id);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_gen_path_init(priv, rdai, io);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_dai_call(rdai, io, init);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_dai_call(rdai, io, start);
if (ret < 0)
goto dai_trigger_end;
break;
case SNDRV_PCM_TRIGGER_STOP:
ret = rsnd_dai_call(rdai, io, stop);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_dai_call(rdai, io, quit);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_gen_path_exit(priv, rdai, io);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_platform_call(priv, dai, stop, ssi_id);
if (ret < 0)
goto dai_trigger_end;
break;
default:
ret = -EINVAL;
}
dai_trigger_end:
rsnd_unlock(priv, flags);
return ret;
}
