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ASoC: pcm3168a: Retain the independence of DAC and ADC side of the codec
The DAC and ADC path of the codec is independent, have dedicated LRCK (FS) and BCK for DAC/ADC. They can be configured to use different format, TDM slots and slot_width if needed. Move these parameters under dedicated io_params structure and manage them independently based on the dai. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20190812095226.18870-2-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi
Mark Brown
parent
79631210fc
commit
abe51c3518
@ -44,18 +44,25 @@ static const char *const pcm3168a_supply_names[PCM3168A_NUM_SUPPLIES] = {
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"VCCDA2"
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};
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#define PCM3168A_DAI_DAC 0
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#define PCM3168A_DAI_ADC 1
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/* ADC/DAC side parameters */
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struct pcm3168a_io_params {
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bool master_mode;
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unsigned int fmt;
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int tdm_slots;
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u32 tdm_mask;
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int slot_width;
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};
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struct pcm3168a_priv {
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struct regulator_bulk_data supplies[PCM3168A_NUM_SUPPLIES];
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struct regmap *regmap;
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struct clk *scki;
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bool adc_master_mode;
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bool dac_master_mode;
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unsigned long sysclk;
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unsigned int adc_fmt;
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unsigned int dac_fmt;
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int tdm_slots;
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u32 tdm_mask[2];
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int slot_width;
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struct pcm3168a_io_params io_params[2];
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};
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static const char *const pcm3168a_roll_off[] = { "Sharp", "Slow" };
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@ -308,8 +315,7 @@ static int pcm3168a_set_dai_sysclk(struct snd_soc_dai *dai,
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return 0;
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}
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static int pcm3168a_set_dai_fmt(struct snd_soc_dai *dai,
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unsigned int format, bool dac)
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static int pcm3168a_set_dai_fmt(struct snd_soc_dai *dai, unsigned int format)
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{
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struct snd_soc_component *component = dai->component;
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struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component);
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@ -356,43 +362,31 @@ static int pcm3168a_set_dai_fmt(struct snd_soc_dai *dai,
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return -EINVAL;
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}
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if (dac) {
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if (dai->id == PCM3168A_DAI_DAC) {
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reg = PCM3168A_DAC_PWR_MST_FMT;
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mask = PCM3168A_DAC_FMT_MASK;
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shift = PCM3168A_DAC_FMT_SHIFT;
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pcm3168a->dac_master_mode = master_mode;
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pcm3168a->dac_fmt = fmt;
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} else {
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reg = PCM3168A_ADC_MST_FMT;
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mask = PCM3168A_ADC_FMTAD_MASK;
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shift = PCM3168A_ADC_FMTAD_SHIFT;
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pcm3168a->adc_master_mode = master_mode;
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pcm3168a->adc_fmt = fmt;
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}
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pcm3168a->io_params[dai->id].master_mode = master_mode;
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pcm3168a->io_params[dai->id].fmt = fmt;
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regmap_update_bits(pcm3168a->regmap, reg, mask, fmt << shift);
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return 0;
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}
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static int pcm3168a_set_dai_fmt_dac(struct snd_soc_dai *dai,
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unsigned int format)
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{
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return pcm3168a_set_dai_fmt(dai, format, true);
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}
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static int pcm3168a_set_dai_fmt_adc(struct snd_soc_dai *dai,
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unsigned int format)
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{
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return pcm3168a_set_dai_fmt(dai, format, false);
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}
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static int pcm3168a_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
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unsigned int rx_mask, int slots,
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int slot_width)
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{
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struct snd_soc_component *component = dai->component;
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struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component);
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struct pcm3168a_io_params *io_params = &pcm3168a->io_params[dai->id];
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if (tx_mask >= (1<<slots) || rx_mask >= (1<<slots)) {
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dev_err(component->dev,
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@ -408,22 +402,25 @@ static int pcm3168a_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
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return -EINVAL;
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}
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if (pcm3168a->tdm_slots && pcm3168a->tdm_slots != slots) {
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if (io_params->tdm_slots && io_params->tdm_slots != slots) {
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dev_err(component->dev, "Not matching slots %d vs %d\n",
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pcm3168a->tdm_slots, slots);
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io_params->tdm_slots, slots);
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return -EINVAL;
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}
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if (pcm3168a->slot_width && pcm3168a->slot_width != slot_width) {
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if (io_params->slot_width && io_params->slot_width != slot_width) {
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dev_err(component->dev, "Not matching slot_width %d vs %d\n",
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pcm3168a->slot_width, slot_width);
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io_params->slot_width, slot_width);
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return -EINVAL;
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}
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pcm3168a->tdm_slots = slots;
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pcm3168a->slot_width = slot_width;
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pcm3168a->tdm_mask[SNDRV_PCM_STREAM_PLAYBACK] = tx_mask;
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pcm3168a->tdm_mask[SNDRV_PCM_STREAM_CAPTURE] = rx_mask;
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io_params->tdm_slots = slots;
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io_params->slot_width = slot_width;
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/* Ignore the not relevant mask for the DAI/direction */
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if (dai->id == PCM3168A_DAI_DAC)
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io_params->tdm_mask = tx_mask;
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else
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io_params->tdm_mask = rx_mask;
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return 0;
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}
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@ -434,7 +431,8 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
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{
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struct snd_soc_component *component = dai->component;
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struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component);
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bool tx, master_mode;
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struct pcm3168a_io_params *io_params = &pcm3168a->io_params[dai->id];
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bool master_mode;
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u32 val, mask, shift, reg;
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unsigned int rate, fmt, ratio, max_ratio;
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unsigned int tdm_slots;
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@ -444,23 +442,21 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
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ratio = pcm3168a->sysclk / rate;
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tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
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if (tx) {
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if (dai->id == PCM3168A_DAI_DAC) {
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max_ratio = PCM3168A_NUM_SCKI_RATIOS_DAC;
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reg = PCM3168A_DAC_PWR_MST_FMT;
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mask = PCM3168A_DAC_MSDA_MASK;
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shift = PCM3168A_DAC_MSDA_SHIFT;
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master_mode = pcm3168a->dac_master_mode;
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fmt = pcm3168a->dac_fmt;
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} else {
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max_ratio = PCM3168A_NUM_SCKI_RATIOS_ADC;
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reg = PCM3168A_ADC_MST_FMT;
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mask = PCM3168A_ADC_MSAD_MASK;
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shift = PCM3168A_ADC_MSAD_SHIFT;
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master_mode = pcm3168a->adc_master_mode;
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fmt = pcm3168a->adc_fmt;
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}
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master_mode = io_params->master_mode;
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fmt = io_params->fmt;
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for (i = 0; i < max_ratio; i++) {
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if (pcm3168a_scki_ratios[i] == ratio)
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break;
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@ -471,8 +467,8 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
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return -EINVAL;
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}
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if (pcm3168a->slot_width)
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slot_width = pcm3168a->slot_width;
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if (io_params->slot_width)
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slot_width = io_params->slot_width;
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else
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slot_width = params_width(params);
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@ -497,8 +493,8 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
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return -EINVAL;
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}
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if (pcm3168a->tdm_slots)
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tdm_slots = pcm3168a->tdm_slots;
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if (io_params->tdm_slots)
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tdm_slots = io_params->tdm_slots;
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else
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tdm_slots = params_channels(params);
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@ -534,7 +530,7 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
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regmap_update_bits(pcm3168a->regmap, reg, mask, val);
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if (tx) {
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if (dai->id == PCM3168A_DAI_DAC) {
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mask = PCM3168A_DAC_FMT_MASK;
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shift = PCM3168A_DAC_FMT_SHIFT;
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} else {
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@ -552,20 +548,13 @@ static int pcm3168a_startup(struct snd_pcm_substream *substream,
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{
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struct snd_soc_component *component = dai->component;
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struct pcm3168a_priv *pcm3168a = snd_soc_component_get_drvdata(component);
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bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
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unsigned int fmt;
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unsigned int sample_min;
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unsigned int channel_max;
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unsigned int channel_maxs[] = {
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6, /* rx */
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8 /* tx */
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8, /* DAC */
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6 /* ADC */
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};
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if (tx)
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fmt = pcm3168a->dac_fmt;
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else
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fmt = pcm3168a->adc_fmt;
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/*
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* Available Data Bits
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*
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@ -578,7 +567,7 @@ static int pcm3168a_startup(struct snd_pcm_substream *substream,
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* I2S
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* LEFT_J
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*/
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switch (fmt) {
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switch (pcm3168a->io_params[dai->id].fmt) {
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case PCM3168A_FMT_RIGHT_J:
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sample_min = 16;
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channel_max = 2;
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@ -588,7 +577,7 @@ static int pcm3168a_startup(struct snd_pcm_substream *substream,
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case PCM3168A_FMT_DSP_A:
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case PCM3168A_FMT_DSP_B:
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sample_min = 24;
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channel_max = channel_maxs[tx];
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channel_max = channel_maxs[dai->id];
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break;
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default:
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sample_min = 24;
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@ -600,8 +589,8 @@ static int pcm3168a_startup(struct snd_pcm_substream *substream,
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sample_min, 32);
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/* Allow all channels in multi DIN/DOUT mode */
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if (pcm3168a->tdm_slots == 2)
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channel_max = channel_maxs[tx];
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if (pcm3168a->io_params[dai->id].tdm_slots == 2)
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channel_max = channel_maxs[dai->id];
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snd_pcm_hw_constraint_minmax(substream->runtime,
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SNDRV_PCM_HW_PARAM_CHANNELS,
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@ -609,26 +598,19 @@ static int pcm3168a_startup(struct snd_pcm_substream *substream,
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return 0;
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}
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static const struct snd_soc_dai_ops pcm3168a_dac_dai_ops = {
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static const struct snd_soc_dai_ops pcm3168a_dai_ops = {
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.startup = pcm3168a_startup,
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.set_fmt = pcm3168a_set_dai_fmt_dac,
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.set_fmt = pcm3168a_set_dai_fmt,
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.set_sysclk = pcm3168a_set_dai_sysclk,
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.hw_params = pcm3168a_hw_params,
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.digital_mute = pcm3168a_digital_mute,
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.set_tdm_slot = pcm3168a_set_tdm_slot,
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};
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static const struct snd_soc_dai_ops pcm3168a_adc_dai_ops = {
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.startup = pcm3168a_startup,
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.set_fmt = pcm3168a_set_dai_fmt_adc,
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.set_sysclk = pcm3168a_set_dai_sysclk,
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.hw_params = pcm3168a_hw_params,
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.set_tdm_slot = pcm3168a_set_tdm_slot,
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};
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static struct snd_soc_dai_driver pcm3168a_dais[] = {
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{
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.name = "pcm3168a-dac",
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.id = PCM3168A_DAI_DAC,
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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@ -636,10 +618,11 @@ static struct snd_soc_dai_driver pcm3168a_dais[] = {
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.rates = SNDRV_PCM_RATE_8000_192000,
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.formats = PCM3168A_FORMATS
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},
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.ops = &pcm3168a_dac_dai_ops
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.ops = &pcm3168a_dai_ops
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},
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{
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.name = "pcm3168a-adc",
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.id = PCM3168A_DAI_ADC,
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.capture = {
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.stream_name = "Capture",
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.channels_min = 1,
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@ -647,7 +630,7 @@ static struct snd_soc_dai_driver pcm3168a_dais[] = {
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.rates = SNDRV_PCM_RATE_8000_96000,
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.formats = PCM3168A_FORMATS
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},
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.ops = &pcm3168a_adc_dai_ops
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.ops = &pcm3168a_dai_ops
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},
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};
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