diff options
Diffstat (limited to 'sound/soc/codecs/rt1308-sdw.c')
| -rw-r--r-- | sound/soc/codecs/rt1308-sdw.c | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c index d930f60cb797..a5a7e46de246 100644 --- a/sound/soc/codecs/rt1308-sdw.c +++ b/sound/soc/codecs/rt1308-sdw.c @@ -507,6 +507,28 @@ static void rt1308_sdw_shutdown(struct snd_pcm_substream *substream, kfree(stream); } +static int rt1308_sdw_set_tdm_slot(struct snd_soc_dai *dai, + unsigned int tx_mask, + unsigned int rx_mask, + int slots, int slot_width) +{ + struct snd_soc_component *component = dai->component; + struct rt1308_sdw_priv *rt1308 = + snd_soc_component_get_drvdata(component); + + if (tx_mask) + return -EINVAL; + + if (slots > 2) + return -EINVAL; + + rt1308->rx_mask = rx_mask; + rt1308->slots = slots; + /* slot_width is not used since it's irrelevant for SoundWire */ + + return 0; +} + static int rt1308_sdw_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { @@ -517,7 +539,7 @@ static int rt1308_sdw_hw_params(struct snd_pcm_substream *substream, struct sdw_port_config port_config; enum sdw_data_direction direction; struct sdw_stream_data *stream; - int retval, port, num_channels; + int retval, port, num_channels, ch_mask; dev_dbg(dai->dev, "%s %s", __func__, dai->name); stream = snd_soc_dai_get_dma_data(dai, substream); @@ -537,13 +559,20 @@ static int rt1308_sdw_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } + if (rt1308->slots) { + num_channels = rt1308->slots; + ch_mask = rt1308->rx_mask; + } else { + num_channels = params_channels(params); + ch_mask = (1 << num_channels) - 1; + } + stream_config.frame_rate = params_rate(params); - stream_config.ch_count = params_channels(params); + stream_config.ch_count = num_channels; stream_config.bps = snd_pcm_format_width(params_format(params)); stream_config.direction = direction; - num_channels = params_channels(params); - port_config.ch_mask = (1 << (num_channels)) - 1; + port_config.ch_mask = ch_mask; port_config.num = port; retval = sdw_stream_add_slave(rt1308->sdw_slave, &stream_config, @@ -597,6 +626,7 @@ static const struct snd_soc_dai_ops rt1308_aif_dai_ops = { .hw_free = rt1308_sdw_pcm_hw_free, .set_sdw_stream = rt1308_set_sdw_stream, .shutdown = rt1308_sdw_shutdown, + .set_tdm_slot = rt1308_sdw_set_tdm_slot, }; #define RT1308_STEREO_RATES SNDRV_PCM_RATE_48000 |