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Diffstat (limited to 'sound/soc/codecs/wm8731.c')
-rw-r--r--sound/soc/codecs/wm8731.c102
1 files changed, 85 insertions, 17 deletions
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index e725c09a3e7..0a67c31b266 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -26,7 +26,6 @@
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
-#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
@@ -44,9 +43,10 @@ static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = {
struct wm8731_priv {
enum snd_soc_control_type control_type;
struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES];
- u16 reg_cache[WM8731_CACHEREGNUM];
unsigned int sysclk;
int sysclk_type;
+ int playback_fs;
+ bool deemph;
};
@@ -65,16 +65,79 @@ static const u16 wm8731_reg[WM8731_CACHEREGNUM] = {
#define wm8731_reset(c) snd_soc_write(c, WM8731_RESET, 0)
static const char *wm8731_input_select[] = {"Line In", "Mic"};
-static const char *wm8731_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
-static const struct soc_enum wm8731_enum[] = {
- SOC_ENUM_SINGLE(WM8731_APANA, 2, 2, wm8731_input_select),
- SOC_ENUM_SINGLE(WM8731_APDIGI, 1, 4, wm8731_deemph),
-};
+static const struct soc_enum wm8731_insel_enum =
+ SOC_ENUM_SINGLE(WM8731_APANA, 2, 2, wm8731_input_select);
+
+static int wm8731_deemph[] = { 0, 32000, 44100, 48000 };
+
+static int wm8731_set_deemph(struct snd_soc_codec *codec)
+{
+ struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
+ int val, i, best;
+
+ /* If we're using deemphasis select the nearest available sample
+ * rate.
+ */
+ if (wm8731->deemph) {
+ best = 1;
+ for (i = 2; i < ARRAY_SIZE(wm8731_deemph); i++) {
+ if (abs(wm8731_deemph[i] - wm8731->playback_fs) <
+ abs(wm8731_deemph[best] - wm8731->playback_fs))
+ best = i;
+ }
+
+ val = best << 1;
+ } else {
+ best = 0;
+ val = 0;
+ }
+
+ dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n",
+ best, wm8731_deemph[best]);
+
+ return snd_soc_update_bits(codec, WM8731_APDIGI, 0x6, val);
+}
+
+static int wm8731_get_deemph(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
+
+ ucontrol->value.enumerated.item[0] = wm8731->deemph;
+
+ return 0;
+}
+
+static int wm8731_put_deemph(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
+ int deemph = ucontrol->value.enumerated.item[0];
+ int ret = 0;
+
+ if (deemph > 1)
+ return -EINVAL;
+
+ mutex_lock(&codec->mutex);
+ if (wm8731->deemph != deemph) {
+ wm8731->deemph = deemph;
+
+ wm8731_set_deemph(codec);
+
+ ret = 1;
+ }
+ mutex_unlock(&codec->mutex);
+
+ return ret;
+}
static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0);
static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0);
static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
+static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 2000, 0);
static const struct snd_kcontrol_new wm8731_snd_controls[] = {
@@ -87,7 +150,7 @@ SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0,
in_tlv),
SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1),
-SOC_SINGLE("Mic Boost (+20dB)", WM8731_APANA, 0, 1, 0),
+SOC_SINGLE_TLV("Mic Boost Volume", WM8731_APANA, 0, 1, 0, mic_tlv),
SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1),
SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1,
@@ -96,7 +159,8 @@ SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1,
SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1),
SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0),
-SOC_ENUM("Playback De-emphasis", wm8731_enum[1]),
+SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
+ wm8731_get_deemph, wm8731_put_deemph),
};
/* Output Mixer */
@@ -108,7 +172,7 @@ SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0),
/* Input mux */
static const struct snd_kcontrol_new wm8731_input_mux_controls =
-SOC_DAPM_ENUM("Input Select", wm8731_enum[0]);
+SOC_DAPM_ENUM("Input Select", wm8731_insel_enum);
static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("OSC", WM8731_PWR, 5, 1, NULL, 0),
@@ -165,10 +229,11 @@ static const struct snd_soc_dapm_route intercon[] = {
static int wm8731_add_widgets(struct snd_soc_codec *codec)
{
- snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets,
- ARRAY_SIZE(wm8731_dapm_widgets));
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
- snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
+ snd_soc_dapm_new_controls(dapm, wm8731_dapm_widgets,
+ ARRAY_SIZE(wm8731_dapm_widgets));
+ snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
return 0;
}
@@ -239,6 +304,8 @@ static int wm8731_hw_params(struct snd_pcm_substream *substream,
u16 srate = (coeff_div[i].sr << 2) |
(coeff_div[i].bosr << 1) | coeff_div[i].usb;
+ wm8731->playback_fs = params_rate(params);
+
snd_soc_write(codec, WM8731_SRATE, srate);
/* bit size */
@@ -253,6 +320,8 @@ static int wm8731_hw_params(struct snd_pcm_substream *substream,
break;
}
+ wm8731_set_deemph(codec);
+
snd_soc_write(codec, WM8731_IFACE, iface);
return 0;
}
@@ -319,7 +388,7 @@ static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai,
return -EINVAL;
}
- snd_soc_dapm_sync(codec);
+ snd_soc_dapm_sync(&codec->dapm);
return 0;
}
@@ -399,7 +468,7 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
- if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies),
wm8731->supplies);
if (ret != 0)
@@ -428,7 +497,7 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec,
wm8731->supplies);
break;
}
- codec->bias_level = level;
+ codec->dapm.bias_level = level;
return 0;
}
@@ -542,7 +611,6 @@ err_regulator_enable:
err_regulator_get:
regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies);
- kfree(wm8731);
return ret;
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-26 19:50:53 +0000