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Subject[PATCH v5 08/15] ASoC: sun4i-i2s: Add functions for channel mapping
Date
From: Marcus Cooper <codekipper@gmail.com>

As we will eventually add multi-channel audio support to the i2s
then create function calls as opposed to regmap fields to add
support for different devices.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
---
sound/soc/sunxi/sun4i-i2s.c | 71 +++++++++++++++++++++----------------
1 file changed, 40 insertions(+), 31 deletions(-)

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 0b98adde0717..6de3cb41aaf6 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -141,8 +141,6 @@ struct sun4i_i2s;
* @field_fmt_lrclk: regmap field to set frame polarity.
* @field_fmt_mode: regmap field to set the operational mode.
* @field_fmt_sext: regmap field to set the sign extension.
- * @field_txchanmap: location of the tx channel mapping register.
- * @field_rxchanmap: location of the rx channel mapping register.
*/
struct sun4i_i2s_quirks {
bool has_reset;
@@ -162,8 +160,6 @@ struct sun4i_i2s_quirks {
struct reg_field field_fmt_lrclk;
struct reg_field field_fmt_mode;
struct reg_field field_fmt_sext;
- struct reg_field field_txchanmap;
- struct reg_field field_rxchanmap;

s8 (*get_sr)(const struct sun4i_i2s *, int);
s8 (*get_wss)(const struct sun4i_i2s *, int);
@@ -174,6 +170,8 @@ struct sun4i_i2s_quirks {
void (*set_rxchanen)(const struct sun4i_i2s *, int);
void (*set_txchansel)(const struct sun4i_i2s *, int, int);
void (*set_rxchansel)(const struct sun4i_i2s *, int);
+ void (*set_txchanmap)(const struct sun4i_i2s *, int, int);
+ void (*set_rxchanmap)(const struct sun4i_i2s *, int);
};

struct sun4i_i2s {
@@ -195,8 +193,6 @@ struct sun4i_i2s {
struct regmap_field *field_fmt_lrclk;
struct regmap_field *field_fmt_mode;
struct regmap_field *field_fmt_sext;
- struct regmap_field *field_txchanmap;
- struct regmap_field *field_rxchanmap;

const struct sun4i_i2s_quirks *variant;

@@ -499,6 +495,31 @@ static void sun8i_i2s_set_rxchansel(const struct sun4i_i2s *i2s, int channel)
SUN8I_I2S_TX_CHAN_SEL(channel));
}

+static void sun4i_i2s_set_txchanmap(const struct sun4i_i2s *i2s, int output,
+ int channel)
+{
+ regmap_write(i2s->regmap, SUN4I_I2S_TX_CHAN_MAP_REG, channel);
+}
+
+static void sun8i_i2s_set_txchanmap(const struct sun4i_i2s *i2s, int output,
+ int channel)
+{
+ if (output >= 0 && output < 4) {
+ regmap_write(i2s->regmap,
+ SUN8I_I2S_TX_CHAN_MAP_REG + (output * 4), channel);
+ }
+}
+
+static void sun4i_i2s_set_rxchanmap(const struct sun4i_i2s *i2s, int channel)
+{
+ regmap_write(i2s->regmap, SUN4I_I2S_RX_CHAN_MAP_REG, channel);
+}
+
+static void sun8i_i2s_set_rxchanmap(const struct sun4i_i2s *i2s, int channel)
+{
+ regmap_write(i2s->regmap, SUN8I_I2S_RX_CHAN_MAP_REG, channel);
+}
+
static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -524,8 +545,8 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
}

/* Map the channels for playback and capture */
- regmap_field_write(i2s->field_txchanmap, 0x76543210);
- regmap_field_write(i2s->field_rxchanmap, 0x00003210);
+ i2s->variant->set_txchanmap(i2s, 0, 0x76543210);
+ i2s->variant->set_rxchanmap(i2s, 0x00003210);

/* Configure the channels */
i2s->variant->set_txchansel(i2s, 0, channels);
@@ -1077,13 +1098,13 @@ static const struct sun4i_i2s_quirks sun4i_a10_i2s_quirks = {
.has_slave_select_bit = true,
.field_fmt_mode = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 1),
.field_fmt_sext = REG_FIELD(SUN4I_I2S_FMT1_REG, 8, 8),
- .field_txchanmap = REG_FIELD(SUN4I_I2S_TX_CHAN_MAP_REG, 0, 31),
- .field_rxchanmap = REG_FIELD(SUN4I_I2S_RX_CHAN_MAP_REG, 0, 31),
.get_sr = sun4i_i2s_get_sr,
.get_wss = sun4i_i2s_get_wss,
.set_format = sun4i_i2s_set_format,
.set_txchansel = sun4i_i2s_set_txchansel,
.set_rxchansel = sun4i_i2s_set_rxchansel,
+ .set_txchanmap = sun4i_i2s_set_txchanmap,
+ .set_rxchanmap = sun4i_i2s_set_rxchanmap,
};

static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = {
@@ -1098,13 +1119,13 @@ static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = {
.has_slave_select_bit = true,
.field_fmt_mode = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 1),
.field_fmt_sext = REG_FIELD(SUN4I_I2S_FMT1_REG, 8, 8),
- .field_txchanmap = REG_FIELD(SUN4I_I2S_TX_CHAN_MAP_REG, 0, 31),
- .field_rxchanmap = REG_FIELD(SUN4I_I2S_RX_CHAN_MAP_REG, 0, 31),
.get_sr = sun4i_i2s_get_sr,
.get_wss = sun4i_i2s_get_wss,
.set_format = sun4i_i2s_set_format,
.set_txchansel = sun4i_i2s_set_txchansel,
.set_rxchansel = sun4i_i2s_set_rxchansel,
+ .set_txchanmap = sun4i_i2s_set_txchanmap,
+ .set_rxchanmap = sun4i_i2s_set_rxchanmap,
};

static const struct sun4i_i2s_quirks sun8i_a83t_i2s_quirks = {
@@ -1118,13 +1139,13 @@ static const struct sun4i_i2s_quirks sun8i_a83t_i2s_quirks = {
.field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7),
.has_slave_select_bit = true,
.field_fmt_mode = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 1),
- .field_txchanmap = REG_FIELD(SUN4I_I2S_TX_CHAN_MAP_REG, 0, 31),
- .field_rxchanmap = REG_FIELD(SUN4I_I2S_RX_CHAN_MAP_REG, 0, 31),
.get_sr = sun8i_i2s_get_sr_wss,
.get_wss = sun8i_i2s_get_sr_wss,
.set_format = sun4i_i2s_set_format,
.set_txchansel = sun4i_i2s_set_txchansel,
.set_rxchansel = sun4i_i2s_set_rxchansel,
+ .set_txchanmap = sun4i_i2s_set_txchanmap,
+ .set_rxchanmap = sun4i_i2s_set_rxchanmap,
};

static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = {
@@ -1142,8 +1163,6 @@ static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = {
.field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 19, 19),
.field_fmt_mode = REG_FIELD(SUN4I_I2S_CTRL_REG, 4, 5),
.field_fmt_sext = REG_FIELD(SUN4I_I2S_FMT1_REG, 4, 5),
- .field_txchanmap = REG_FIELD(SUN8I_I2S_TX_CHAN_MAP_REG, 0, 31),
- .field_rxchanmap = REG_FIELD(SUN8I_I2S_RX_CHAN_MAP_REG, 0, 31),
.get_sr = sun8i_i2s_get_sr_wss,
.get_wss = sun8i_i2s_get_sr_wss,
.set_format = sun8i_i2s_set_format,
@@ -1153,6 +1172,8 @@ static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = {
.set_rxchanen = sun8i_i2s_set_rxchanen,
.set_txchansel = sun8i_i2s_set_txchansel,
.set_rxchansel = sun8i_i2s_set_rxchansel,
+ .set_txchanmap = sun8i_i2s_set_txchanmap,
+ .set_rxchanmap = sun8i_i2s_set_rxchanmap,
};

static const struct sun4i_i2s_quirks sun50i_a64_codec_i2s_quirks = {
@@ -1167,13 +1188,13 @@ static const struct sun4i_i2s_quirks sun50i_a64_codec_i2s_quirks = {
.field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7),
.field_fmt_mode = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 1),
.field_fmt_sext = REG_FIELD(SUN4I_I2S_FMT1_REG, 8, 8),
- .field_txchanmap = REG_FIELD(SUN4I_I2S_TX_CHAN_MAP_REG, 0, 31),
- .field_rxchanmap = REG_FIELD(SUN4I_I2S_RX_CHAN_MAP_REG, 0, 31),
.get_sr = sun4i_i2s_get_sr,
.get_wss = sun4i_i2s_get_wss,
.set_format = sun4i_i2s_set_format,
.set_txchansel = sun4i_i2s_set_txchansel,
.set_rxchansel = sun4i_i2s_set_rxchansel,
+ .set_txchanmap = sun4i_i2s_set_txchanmap,
+ .set_rxchanmap = sun4i_i2s_set_rxchanmap,
};

static int sun4i_i2s_init_regmap_fields(struct device *dev,
@@ -1218,19 +1239,7 @@ static int sun4i_i2s_init_regmap_fields(struct device *dev,
i2s->field_fmt_sext =
devm_regmap_field_alloc(dev, i2s->regmap,
i2s->variant->field_fmt_sext);
- if (IS_ERR(i2s->field_fmt_sext))
- return PTR_ERR(i2s->field_fmt_sext);
-
- i2s->field_txchanmap =
- devm_regmap_field_alloc(dev, i2s->regmap,
- i2s->variant->field_txchanmap);
- if (IS_ERR(i2s->field_txchanmap))
- return PTR_ERR(i2s->field_txchanmap);
-
- i2s->field_rxchanmap =
- devm_regmap_field_alloc(dev, i2s->regmap,
- i2s->variant->field_rxchanmap);
- return PTR_ERR_OR_ZERO(i2s->field_rxchanmap);
+ return PTR_ERR_OR_ZERO(i2s->field_fmt_sext);
}

static int sun4i_i2s_probe(struct platform_device *pdev)
--
2.22.0
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