diff options
| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2015-06-25 11:35:11 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-07-07 15:15:12 +0300 |
| commit | c05d9a8c7f55a901d9e8ec2a5f0730137bbfea4a (patch) | |
| tree | a6e6382dc10ce2aaf458f8b1e1e36b0898620e7f /sound/soc/codecs/arizona.h | |
| parent | d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754 (diff) | |
| download | linux-c05d9a8c7f55a901d9e8ec2a5f0730137bbfea4a.tar.xz | |
ASoC: arizona: Implement stability check for EQ coefficients
Specifying unstable coefficients for the EQ can have a severe impact on
the audio. This patchs adds a stability check on the coefficients
written to the EQ, for this it is necessary to merge the mode control
and the coefficients as some coefficients may only be unstable with a
certain mode setting so it is ideal if these are always updated in sync.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/arizona.h')
| -rw-r--r-- | sound/soc/codecs/arizona.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h index 43deb0462309..ebe50cf2f878 100644 --- a/sound/soc/codecs/arizona.h +++ b/sound/soc/codecs/arizona.h @@ -194,6 +194,13 @@ extern int arizona_mixer_values[ARIZONA_NUM_MIXER_INPUTS]; ARIZONA_MIXER_ROUTES(name " Preloader", name "L"), \ ARIZONA_MIXER_ROUTES(name " Preloader", name "R") +#define ARIZONA_EQ_CONTROL(xname, xbase) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ + .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \ + .put = arizona_eq_coeff_put, .private_value = \ + ((unsigned long)&(struct soc_bytes) { .base = xbase, \ + .num_regs = 20, .mask = ~ARIZONA_EQ1_B1_MODE }) } + #define ARIZONA_RATE_ENUM_SIZE 4 extern const char *arizona_rate_text[ARIZONA_RATE_ENUM_SIZE]; extern const int arizona_rate_val[ARIZONA_RATE_ENUM_SIZE]; @@ -229,6 +236,9 @@ extern int arizona_hp_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); +extern int arizona_eq_coeff_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); + extern int arizona_set_sysclk(struct snd_soc_codec *codec, int clk_id, int source, unsigned int freq, int dir); |