diff options
| author | Adrian Alonso <aalonso@freescale.com> | 2012-05-14 18:48:27 -0500 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-07-20 13:37:33 +0800 |
| commit | 1df3a2cfa951b5a411779c49550776ea8a152391 (patch) | |
| tree | a86cd46d6759873862449137e13fc35ac7f5bd20 /sound | |
| parent | cc3b359b4d8fc72a0f84321f244833a9e6d17bec (diff) | |
ENGR00209384-1 mxc_spdif: add trigger handler function
* Add trigger function in order to handle user
space events start/stop/pause playback/capture
Signed-off-by: Adrian Alonso <aalonso@freescale.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/mxc_spdif.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/sound/soc/codecs/mxc_spdif.c b/sound/soc/codecs/mxc_spdif.c index 613caf633fae..8c163fbd7c7d 100644 --- a/sound/soc/codecs/mxc_spdif.c +++ b/sound/soc/codecs/mxc_spdif.c @@ -633,6 +633,33 @@ static int mxc_spdif_playback_shutdown(struct snd_pcm_substream *substream, return 0; } +static int mxc_spdif_playback_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + struct mxc_spdif_priv *spdif_priv = snd_soc_codec_get_drvdata(codec); + struct mxc_spdif_platform_data *plat_data = spdif_priv->plat_data; + int ret = 0; + + if (!plat_data->spdif_tx) + return -EINVAL; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + break; + default: + return -EINVAL; + } + + return ret; +} + static int mxc_spdif_capture_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -757,6 +784,33 @@ static int mxc_spdif_capture_shutdown(struct snd_pcm_substream *substream, return 0; } +static int mxc_spdif_capture_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + struct mxc_spdif_priv *spdif_priv = snd_soc_codec_get_drvdata(codec); + struct mxc_spdif_platform_data *plat_data = spdif_priv->plat_data; + int ret = 0; + + if (!plat_data->spdif_rx) + return -EINVAL; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + break; + default: + return -EINVAL; + } + + return ret; +} + /* * MXC SPDIF IEC958 controller(mixer) functions * @@ -1117,9 +1171,23 @@ static int mxc_spdif_prepare(struct snd_pcm_substream *substream, return ret; } +static int mxc_spdif_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + int ret = 0; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + ret = mxc_spdif_playback_trigger(substream, cmd, dai); + else + ret = mxc_spdif_capture_trigger(substream, cmd, dai); + + return ret; +} + struct snd_soc_dai_ops mxc_spdif_codec_dai_ops = { .startup = mxc_spdif_startup, .prepare = mxc_spdif_prepare, + .trigger = mxc_spdif_trigger, .shutdown = mxc_spdif_shutdown, }; |