static int dw_configure_dai(struct dw_i2s_dev *dev,
struct snd_soc_dai_driver *dw_i2s_dai,
unsigned int rates)
{
/*
* Read component parameter registers to extract
* the I2S block's configuration.
*/
u32 comp1 = i2s_read_reg(dev->i2s_base, dev->i2s_reg_comp1);
u32 comp2 = i2s_read_reg(dev->i2s_base, dev->i2s_reg_comp2);
u32 fifo_depth = 1 << (1 + COMP1_FIFO_DEPTH_GLOBAL(comp1));
u32 idx;
if (dev->capability & DWC_I2S_RECORD &&
dev->quirks & DW_I2S_QUIRK_COMP_PARAM1)
comp1 = comp1 & ~BIT(5);
if (COMP1_TX_ENABLED(comp1)) {
dev_dbg(dev->dev, " designware: play supported\n");
idx = COMP1_TX_WORDSIZE_0(comp1);
if (WARN_ON(idx >= ARRAY_SIZE(formats)))
return -EINVAL;
if (dev->quirks & DW_I2S_QUIRK_16BIT_IDX_OVERRIDE)
idx = 1;
dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM;
dw_i2s_dai->playback.channels_max =
1 << (COMP1_TX_CHANNELS(comp1) + 1);
dw_i2s_dai->playback.formats = formats[idx];
dw_i2s_dai->playback.rates = rates;
}
if (COMP1_RX_ENABLED(comp1)) {
dev_dbg(dev->dev, "designware: record supported\n");
idx = COMP2_RX_WORDSIZE_0(comp2);
if (WARN_ON(idx >= ARRAY_SIZE(formats)))
return -EINVAL;
if (dev->quirks & DW_I2S_QUIRK_16BIT_IDX_OVERRIDE)
idx = 1;
dw_i2s_dai->capture.channels_min = MIN_CHANNEL_NUM;
dw_i2s_dai->capture.channels_max =
1 << (COMP1_RX_CHANNELS(comp1) + 1);
dw_i2s_dai->capture.formats = formats[idx];
dw_i2s_dai->capture.rates = rates;
}
if (COMP1_MODE_EN(comp1)) {
dev_dbg(dev->dev, "designware: i2s master mode supported\n");
dev->capability |= DW_I2S_MASTER;
} else {
dev_dbg(dev->dev, "designware: i2s slave mode supported\n");
dev->capability |= DW_I2S_SLAVE;
}
dev->fifo_th = fifo_depth / 2;
return 0;
}
static int dw_configure_dai(struct dw_i2s_dev *dev,
struct snd_soc_dai_driver *dw_i2s_dai,
unsigned int rates)
{
/*
* Read component parameter registers to extract
* the I2S block's configuration.
*/
u32 comp1 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_1);
u32 comp2 = i2s_read_reg(dev->i2s_base, I2S_COMP_PARAM_2);
u32 idx;
if (COMP1_TX_ENABLED(comp1)) {
dev_dbg(dev->dev, " designware: play supported\n");
idx = COMP1_TX_WORDSIZE_0(comp1);
if (WARN_ON(idx >= ARRAY_SIZE(formats)))
return -EINVAL;
dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM;
dw_i2s_dai->playback.channels_max =
1 << (COMP1_TX_CHANNELS(comp1) + 1);
dw_i2s_dai->playback.formats = formats[idx];
dw_i2s_dai->playback.rates = rates;
}
if (COMP1_RX_ENABLED(comp1)) {
dev_dbg(dev->dev, "designware: record supported\n");
idx = COMP2_RX_WORDSIZE_0(comp2);
if (WARN_ON(idx >= ARRAY_SIZE(formats)))
return -EINVAL;
dw_i2s_dai->capture.channels_min = MIN_CHANNEL_NUM;
dw_i2s_dai->capture.channels_max =
1 << (COMP1_RX_CHANNELS(comp1) + 1);
dw_i2s_dai->capture.formats = formats[idx];
dw_i2s_dai->capture.rates = rates;
}
return 0;
}