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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-01-07 18:02:57 -0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-01-20 13:58:26 +0000 |
| commit | 9b85fc90634972634a229aaa1c94f8c9a50fddbc (patch) | |
| tree | b264e6e769c2250d4999950a36eecfec0cd65f06 /sound/soc | |
| parent | 3b09bb820dda209d5c81e329420ccf36dd30c8eb (diff) | |
| download | linux-9b85fc90634972634a229aaa1c94f8c9a50fddbc.tar.gz linux-9b85fc90634972634a229aaa1c94f8c9a50fddbc.tar.bz2 linux-9b85fc90634972634a229aaa1c94f8c9a50fddbc.zip | |
ASoC: Optimise performance of WM8904 ADC 128fs OSR mode
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/wm8904.c | 31 | ||||
| -rw-r--r-- | sound/soc/codecs/wm8904.h | 11 |
2 files changed, 41 insertions, 1 deletions
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index f2a740de3ad1..14afc1193343 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -304,6 +304,7 @@ static bool wm8904_readable_register(struct device *dev, unsigned int reg) case WM8904_EQ23: case WM8904_EQ24: case WM8904_CONTROL_INTERFACE_TEST_1: + case WM8904_ADC_TEST_0: case WM8904_ANALOGUE_OUTPUT_BIAS_0: case WM8904_FLL_NCO_TEST_0: case WM8904_FLL_NCO_TEST_1: @@ -569,6 +570,29 @@ static const char *hpf_mode_text[] = { static const struct soc_enum hpf_mode = SOC_ENUM_SINGLE(WM8904_ADC_DIGITAL_0, 5, 4, hpf_mode_text); +static int wm8904_adc_osr_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + unsigned int val; + int ret; + + ret = snd_soc_put_volsw(kcontrol, ucontrol); + if (ret < 0) + return ret; + + if (ucontrol->value.integer.value[0]) + val = 0; + else + val = WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5; + + snd_soc_update_bits(codec, WM8904_ADC_TEST_0, + WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5, + val); + + return ret; +} + static const struct snd_kcontrol_new wm8904_adc_snd_controls[] = { SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8904_ADC_DIGITAL_VOLUME_LEFT, WM8904_ADC_DIGITAL_VOLUME_RIGHT, 1, 119, 0, digital_tlv), @@ -585,7 +609,12 @@ SOC_DOUBLE_R("Capture Switch", WM8904_ANALOGUE_LEFT_INPUT_0, SOC_SINGLE("High Pass Filter Switch", WM8904_ADC_DIGITAL_0, 4, 1, 0), SOC_ENUM("High Pass Filter Mode", hpf_mode), -SOC_SINGLE("ADC 128x OSR Switch", WM8904_ANALOGUE_ADC_0, 0, 1, 0), +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "ADC 128x OSR Switch", + .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, + .put = wm8904_adc_osr_put, + .private_value = SOC_SINGLE_VALUE(WM8904_ANALOGUE_ADC_0, 0, 1, 0), +}, }; static const char *drc_path_text[] = { diff --git a/sound/soc/codecs/wm8904.h b/sound/soc/codecs/wm8904.h index 9e8c84188ba7..c29a0e8131ca 100644 --- a/sound/soc/codecs/wm8904.h +++ b/sound/soc/codecs/wm8904.h @@ -123,6 +123,7 @@ #define WM8904_EQ23 0x9C #define WM8904_EQ24 0x9D #define WM8904_CONTROL_INTERFACE_TEST_1 0xA1 +#define WM8904_ADC_TEST_0 0xC6 #define WM8904_ANALOGUE_OUTPUT_BIAS_0 0xCC #define WM8904_FLL_NCO_TEST_0 0xF7 #define WM8904_FLL_NCO_TEST_1 0xF8 @@ -1557,6 +1558,16 @@ #define WM8904_USER_KEY_WIDTH 1 /* USER_KEY */ /* + * R198 (0xC6) - ADC Test 0 + */ +#define WM8904_ADC_128_OSR_TST_MODE 0x0004 /* ADC_128_OSR_TST_MODE */ +#define WM8904_ADC_128_OSR_TST_MODE_SHIFT 2 /* ADC_128_OSR_TST_MODE */ +#define WM8904_ADC_128_OSR_TST_MODE_WIDTH 1 /* ADC_128_OSR_TST_MODE */ +#define WM8904_ADC_BIASX1P5 0x0001 /* ADC_BIASX1P5 */ +#define WM8904_ADC_BIASX1P5_SHIFT 0 /* ADC_BIASX1P5 */ +#define WM8904_ADC_BIASX1P5_WIDTH 1 /* ADC_BIASX1P5 */ + +/* * R204 (0xCC) - Analogue Output Bias 0 */ #define WM8904_PGA_BIAS_MASK 0x0070 /* PGA_BIAS - [6:4] */ |