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Diffstat (limited to 'sound/soc/codecs/wm8960.c')
-rw-r--r--sound/soc/codecs/wm8960.c125
1 files changed, 114 insertions, 11 deletions
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index 8d7f63253..94c5c4681 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -127,6 +127,8 @@ struct wm8960_priv {
struct snd_soc_dapm_widget *out3;
bool deemph;
int playback_fs;
+ int bclk;
+ int sysclk;
struct wm8960_data pdata;
};
@@ -445,7 +447,7 @@ static int wm8960_add_widgets(struct snd_soc_codec *codec)
{
struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
struct wm8960_data *pdata = &wm8960->pdata;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
+ struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
struct snd_soc_dapm_widget *w;
snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
@@ -476,7 +478,7 @@ static int wm8960_add_widgets(struct snd_soc_codec *codec)
* and save the result.
*/
list_for_each_entry(w, &codec->component.card->widgets, list) {
- if (w->dapm != &codec->dapm)
+ if (w->dapm != dapm)
continue;
if (strcmp(w->name, "LOUT1 PGA") == 0)
wm8960->lout1 = w;
@@ -563,6 +565,72 @@ static struct {
{ 8000, 5 },
};
+/* Multiply 256 for internal 256 div */
+static const int dac_divs[] = { 256, 384, 512, 768, 1024, 1408, 1536 };
+
+/* Multiply 10 to eliminate decimials */
+static const int bclk_divs[] = {
+ 10, 15, 20, 30, 40, 55, 60, 80, 110,
+ 120, 160, 220, 240, 320, 320, 320
+};
+
+static void wm8960_configure_clocking(struct snd_soc_codec *codec,
+ bool tx, int lrclk)
+{
+ struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
+ u16 iface1 = snd_soc_read(codec, WM8960_IFACE1);
+ u16 iface2 = snd_soc_read(codec, WM8960_IFACE2);
+ u32 sysclk;
+ int i, j;
+
+ if (!(iface1 & (1<<6))) {
+ dev_dbg(codec->dev,
+ "Codec is slave mode, no need to configure clock\n");
+ return;
+ }
+
+ if (!wm8960->sysclk) {
+ dev_dbg(codec->dev, "No SYSCLK configured\n");
+ return;
+ }
+
+ if (!wm8960->bclk || !lrclk) {
+ dev_dbg(codec->dev, "No audio clocks configured\n");
+ return;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(dac_divs); ++i) {
+ if (wm8960->sysclk == lrclk * dac_divs[i]) {
+ for (j = 0; j < ARRAY_SIZE(bclk_divs); ++j) {
+ sysclk = wm8960->bclk * bclk_divs[j] / 10;
+ if (wm8960->sysclk == sysclk)
+ break;
+ }
+ if(j != ARRAY_SIZE(bclk_divs))
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(dac_divs)) {
+ dev_err(codec->dev, "Unsupported sysclk %d\n", wm8960->sysclk);
+ return;
+ }
+
+ /*
+ * configure frame clock. If ADCLRC configure as GPIO pin, DACLRC
+ * pin is used as a frame clock for ADCs and DACs.
+ */
+ if (iface2 & (1<<6))
+ snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 3, i << 3);
+ else if (tx)
+ snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 3, i << 3);
+ else if (!tx)
+ snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 6, i << 6);
+
+ /* configure bit clock */
+ snd_soc_update_bits(codec, WM8960_CLOCK2, 0xf, j);
+}
+
static int wm8960_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -570,8 +638,13 @@ static int wm8960_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_codec *codec = dai->codec;
struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
+ bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
int i;
+ wm8960->bclk = snd_soc_params_to_bclk(params);
+ if (params_channels(params) == 1)
+ wm8960->bclk *= 2;
+
/* bit size */
switch (params_width(params)) {
case 16:
@@ -582,6 +655,12 @@ static int wm8960_hw_params(struct snd_pcm_substream *substream,
case 24:
iface |= 0x0008;
break;
+ case 32:
+ /* right justify mode does not support 32 word length */
+ if ((iface & 0x3) != 0) {
+ iface |= 0x000c;
+ break;
+ }
default:
dev_err(codec->dev, "unsupported width %d\n",
params_width(params));
@@ -602,6 +681,9 @@ static int wm8960_hw_params(struct snd_pcm_substream *substream,
/* set iface */
snd_soc_write(codec, WM8960_IFACE1, iface);
+
+ wm8960_configure_clocking(codec, tx, params_rate(params));
+
return 0;
}
@@ -627,7 +709,7 @@ static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
break;
case SND_SOC_BIAS_PREPARE:
- switch (codec->dapm.bias_level) {
+ switch (snd_soc_codec_get_bias_level(codec)) {
case SND_SOC_BIAS_STANDBY:
if (!IS_ERR(wm8960->mclk)) {
ret = clk_prepare_enable(wm8960->mclk);
@@ -655,7 +737,7 @@ static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
break;
case SND_SOC_BIAS_STANDBY:
- if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+ if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
regcache_sync(wm8960->regmap);
/* Enable anti-pop features */
@@ -691,8 +773,6 @@ static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
break;
}
- codec->dapm.bias_level = level;
-
return 0;
}
@@ -707,7 +787,7 @@ static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
break;
case SND_SOC_BIAS_PREPARE:
- switch (codec->dapm.bias_level) {
+ switch (snd_soc_codec_get_bias_level(codec)) {
case SND_SOC_BIAS_STANDBY:
/* Enable anti pop mode */
snd_soc_update_bits(codec, WM8960_APOP1,
@@ -778,7 +858,7 @@ static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
break;
case SND_SOC_BIAS_STANDBY:
- switch (codec->dapm.bias_level) {
+ switch (snd_soc_codec_get_bias_level(codec)) {
case SND_SOC_BIAS_PREPARE:
/* Disable HP discharge */
snd_soc_update_bits(codec, WM8960_APOP2,
@@ -802,8 +882,6 @@ static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
break;
}
- codec->dapm.bias_level = level;
-
return 0;
}
@@ -950,11 +1028,35 @@ static int wm8960_set_bias_level(struct snd_soc_codec *codec,
return wm8960->set_bias_level(codec, level);
}
+static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
+ unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
+
+ switch (clk_id) {
+ case WM8960_SYSCLK_MCLK:
+ snd_soc_update_bits(codec, WM8960_CLOCK1,
+ 0x1, WM8960_SYSCLK_MCLK);
+ break;
+ case WM8960_SYSCLK_PLL:
+ snd_soc_update_bits(codec, WM8960_CLOCK1,
+ 0x1, WM8960_SYSCLK_PLL);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ wm8960->sysclk = freq;
+
+ return 0;
+}
+
#define WM8960_RATES SNDRV_PCM_RATE_8000_48000
#define WM8960_FORMATS \
(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
- SNDRV_PCM_FMTBIT_S24_LE)
+ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
static const struct snd_soc_dai_ops wm8960_dai_ops = {
.hw_params = wm8960_hw_params,
@@ -962,6 +1064,7 @@ static const struct snd_soc_dai_ops wm8960_dai_ops = {
.set_fmt = wm8960_set_dai_fmt,
.set_clkdiv = wm8960_set_dai_clkdiv,
.set_pll = wm8960_set_dai_pll,
+ .set_sysclk = wm8960_set_dai_sysclk,
};
static struct snd_soc_dai_driver wm8960_dai = {
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-04 21:18:57 +0000