[alsa-devel] [PATCHv3 2/9] WM8971 uses SOC_ENUM_SINGLE_DECL to replace SOC_ENUM_SINGLE
Charles Keepax
ckeepax at opensource.wolfsonmicro.com
Tue Sep 2 11:33:32 CEST 2014
On Tue, Sep 02, 2014 at 11:27:43AM +0800, Xavier Hsu wrote:
> This patch improves WM8971.
> We uses SOC_ENUM_SINGLE_DECL macro to
> replace SOC_ENUM_SINGLE macro.
>
> Any comments about improving the patch are welcome.
> Thanks.
>
> Signed-off-by: Xavier Hsu <xavier.hsu at linaro.org>
> Signed-off-by: Andy Green <andy.green at linaro.org>
> ---
> sound/soc/codecs/wm8971.c | 136 +++++++++++++++++++++++++++++++++++----------
> 1 file changed, 106 insertions(+), 30 deletions(-)
> mode change 100644 => 100755 sound/soc/codecs/wm8971.c
>
> diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
> old mode 100644
> new mode 100755
> index 064278f..59c4828
> --- a/sound/soc/codecs/wm8971.c
> +++ b/sound/soc/codecs/wm8971.c
> @@ -7,6 +7,10 @@
> *
> * Based on wm8753.c by Liam Girdwood
> *
> + * WM8971 Improve Copyright (C) 2014 Linaro, Ltd
> + * Author: Xavier Hsu <xavier.hsu at linaro.org>
> + * Andy Green <andy.green at linaro.org>
> + *
> * This program is free software; you can redistribute it and/or modify it
> * under the terms of the GNU General Public License as published by the
> * Free Software Foundation; either version 2 of the License, or (at your
> @@ -36,6 +40,8 @@ static struct workqueue_struct *wm8971_workq;
> /* codec private data */
> struct wm8971_priv {
> unsigned int sysclk;
> + int playback_fs;
> + bool deemph;
> };
>
> /*
> @@ -100,7 +106,6 @@ static const char const *wm8971_alc_func[] = {"Off", "Right",
> "Left", "Stereo"};
> static const char const *wm8971_ng_type[] = {"Constant PGA Gain",
> "Mute ADC Output"};
> -static const char const *wm8971_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
> static const char const *wm8971_mono_mux[] = {"Stereo", "Mono (Left)",
> "Mono (Right)", "Digital Mono"};
> static const char const *wm8971_dac_phase[] = {"Non Inverted", "Inverted"};
> @@ -114,23 +119,91 @@ static const char const *wm8971_rpga_sel[] = {"Line", "Mic", "NC",
> "Differential"};
> static const char const *wm8971_adcpol[] = {"Normal", "L Invert",
> "R Invert", "L + R Invert"};
> +static const char const *wm8971_deemp[] = {"None", "32kHz",
> + "44.1kHz", "48kHz"};
>
> -static const struct soc_enum wm8971_enum[] = {
> - SOC_ENUM_SINGLE(WM8971_BASS, 7, 2, wm8971_bass), /* 0 */
> - SOC_ENUM_SINGLE(WM8971_BASS, 6, 2, wm8971_bass_filter),
> - SOC_ENUM_SINGLE(WM8971_TREBLE, 6, 2, wm8971_treble),
> - SOC_ENUM_SINGLE(WM8971_ALC1, 7, 4, wm8971_alc_func),
> - SOC_ENUM_SINGLE(WM8971_NGATE, 1, 2, wm8971_ng_type), /* 4 */
> - SOC_ENUM_SINGLE(WM8971_ADCDAC, 1, 4, wm8971_deemp),
> - SOC_ENUM_SINGLE(WM8971_ADCTL1, 4, 4, wm8971_mono_mux),
> - SOC_ENUM_SINGLE(WM8971_ADCTL1, 1, 2, wm8971_dac_phase),
> - SOC_ENUM_SINGLE(WM8971_LOUTM1, 0, 5, wm8971_lline_mux), /* 8 */
> - SOC_ENUM_SINGLE(WM8971_ROUTM1, 0, 5, wm8971_rline_mux),
> - SOC_ENUM_SINGLE(WM8971_LADCIN, 6, 4, wm8971_lpga_sel),
> - SOC_ENUM_SINGLE(WM8971_RADCIN, 6, 4, wm8971_rpga_sel),
> - SOC_ENUM_SINGLE(WM8971_ADCDAC, 5, 4, wm8971_adcpol), /* 12 */
> - SOC_ENUM_SINGLE(WM8971_ADCIN, 6, 4, wm8971_mono_mux),
> -};
> +static int wm8971_set_deemph(struct snd_soc_codec *codec)
> +{
> + struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
> + int val = 0, i, best = 0;
> +
> + /* If we're using deemphasis select the nearest available sample
> + * rate.
> + */
> + if (wm8971->deemph) {
> + best = 1;
> + for (i = 2; i < ARRAY_SIZE(wm8971_deemp); i++) {
> + if (abs(wm8971_deemp[i] - wm8971->playback_fs) <
> + abs(wm8971_deemp[best] -
> + wm8971->playback_fs))
> + best = i;
> + }
> + val = best << 1;
> + }
> +
> + dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n",
> + best, wm8971_deemp[best]);
> +
> + return snd_soc_update_bits(codec, WM8971_ADCDAC, 0x6, val);
> +}
> +
> +static int wm8971_get_deemph(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
> + struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
> +
> + ucontrol->value.enumerated.item[0] = wm8971->deemph;
> +
> + return 0;
> +}
> +
> +static int wm8971_put_deemph(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
> + struct wm8971_priv *wm8971 = 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 (wm8971->deemph != deemph) {
> + wm8971->deemph = deemph;
> + wm8971_set_deemph(codec);
> +
> + ret = 1;
> + }
> + mutex_unlock(&codec->mutex);
> +
> + return ret;
> +}
This deemph stuff should probably go in a seperate patch it
doesn't really match the commit log of "We uses
SOC_ENUM_SINGLE_DECL macro to replace SOC_ENUM_SINGLE macro."
> +
> +static const SOC_ENUM_SINGLE_DECL(bass_boost, WM8971_BASS, 7, wm8971_bass);
> +static const SOC_ENUM_SINGLE_DECL(bass_filter, WM8971_BASS,
> + 6, wm8971_bass_filter);
> +static const SOC_ENUM_SINGLE_DECL(treble_cutoff, WM8971_TREBLE,
> + 6, wm8971_treble);
> +static const SOC_ENUM_SINGLE_DECL(alc_capture_func, WM8971_ALC1,
> + 7, wm8971_alc_func);
> +static const SOC_ENUM_SINGLE_DECL(alc_capture_ngtype, WM8971_NGATE,
> + 1, wm8971_ng_type);
> +static const SOC_ENUM_SINGLE_DECL(dac_mono_mix, WM8971_ADCTL1,
> + 4, wm8971_mono_mux);
> +static const SOC_ENUM_SINGLE_DECL(dac_phase_inv, WM8971_ADCTL1,
> + 1, wm8971_dac_phase);
> +static const SOC_ENUM_SINGLE_DECL(left_line, WM8971_LOUTM1,
> + 0, wm8971_lline_mux);
> +static const SOC_ENUM_SINGLE_DECL(right_line, WM8971_ROUTM1,
> + 0, wm8971_rline_mux);
> +static const SOC_ENUM_SINGLE_DECL(left_pga, WM8971_LADCIN, 6, wm8971_lpga_sel);
> +static const SOC_ENUM_SINGLE_DECL(right_pga, WM8971_RADCIN,
> + 6, wm8971_rpga_sel);
> +static const SOC_ENUM_SINGLE_DECL(capture_polarity, WM8971_ADCDAC,
> + 5, wm8971_adcpol);
> +static const SOC_ENUM_SINGLE_DECL(monomux, WM8971_ADCIN, 6, wm8971_mono_mux);
>
> static const struct snd_kcontrol_new wm8971_snd_controls[] = {
> SOC_DOUBLE_R("Capture Volume", WM8971_LINVOL, WM8971_RINVOL, 0, 63, 0),
> @@ -158,12 +231,12 @@ static const struct snd_kcontrol_new wm8971_snd_controls[] = {
> SOC_DOUBLE_R("Speaker Playback Volume", WM8971_LOUT2V,
> WM8971_ROUT2V, 0, 127, 0),
>
> - SOC_ENUM("Bass Boost", wm8971_enum[0]),
> - SOC_ENUM("Bass Filter", wm8971_enum[1]),
> + SOC_ENUM("Bass Boost", bass_boost),
> + SOC_ENUM("Bass Filter", bass_filter),
> SOC_SINGLE("Bass Volume", WM8971_BASS, 0, 7, 1),
>
> SOC_SINGLE("Treble Volume", WM8971_TREBLE, 0, 7, 0),
> - SOC_ENUM("Treble Cut-off", wm8971_enum[2]),
> + SOC_ENUM("Treble Cut-off", treble_cutoff),
>
> SOC_SINGLE("Capture Filter Switch", WM8971_ADCDAC, 0, 1, 1),
>
> @@ -172,21 +245,22 @@ static const struct snd_kcontrol_new wm8971_snd_controls[] = {
>
> SOC_SINGLE("ALC Capture Target Volume", WM8971_ALC1, 0, 7, 0),
> SOC_SINGLE("ALC Capture Max Volume", WM8971_ALC1, 4, 7, 0),
> - SOC_ENUM("ALC Capture Function", wm8971_enum[3]),
> + SOC_ENUM("ALC Capture Function", alc_capture_func),
> SOC_SINGLE("ALC Capture ZC Switch", WM8971_ALC2, 7, 1, 0),
> SOC_SINGLE("ALC Capture Hold Time", WM8971_ALC2, 0, 15, 0),
> SOC_SINGLE("ALC Capture Decay Time", WM8971_ALC3, 4, 15, 0),
> SOC_SINGLE("ALC Capture Attack Time", WM8971_ALC3, 0, 15, 0),
> SOC_SINGLE("ALC Capture NG Threshold", WM8971_NGATE, 3, 31, 0),
> - SOC_ENUM("ALC Capture NG Type", wm8971_enum[4]),
> + SOC_ENUM("ALC Capture NG Type", alc_capture_ngtype),
> SOC_SINGLE("ALC Capture NG Switch", WM8971_NGATE, 0, 1, 0),
>
> SOC_SINGLE("Capture 6dB Attenuate", WM8971_ADCDAC, 8, 1, 0),
> SOC_SINGLE("Playback 6dB Attenuate", WM8971_ADCDAC, 7, 1, 0),
>
> - SOC_ENUM("Playback De-emphasis", wm8971_enum[5]),
> - SOC_ENUM("Playback Function", wm8971_enum[6]),
> - SOC_ENUM("Playback Phase", wm8971_enum[7]),
> + SOC_SINGLE_BOOL_EXT("Playback De-emphasis Switch", 0,
> + wm8971_get_deemph, wm8971_put_deemph),
> + SOC_ENUM("Playback Function", dac_mono_mix),
> + SOC_ENUM("Playback Phase", dac_phase_inv),
>
> SOC_DOUBLE_R("Mic Boost", WM8971_LADCIN, WM8971_RADCIN, 4, 3, 0),
> };
> @@ -221,23 +295,23 @@ SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_MOUTM2, 7, 1, 0),
>
> /* Left Line Mux */
> static const struct snd_kcontrol_new wm8971_left_line_controls =
> -SOC_DAPM_ENUM("Route", wm8971_enum[8]);
> +SOC_DAPM_ENUM("Route", left_line);
>
> /* Right Line Mux */
> static const struct snd_kcontrol_new wm8971_right_line_controls =
> -SOC_DAPM_ENUM("Route", wm8971_enum[9]);
> +SOC_DAPM_ENUM("Route", right_line);
>
> /* Left PGA Mux */
> static const struct snd_kcontrol_new wm8971_left_pga_controls =
> -SOC_DAPM_ENUM("Route", wm8971_enum[10]);
> +SOC_DAPM_ENUM("Route", left_pga);
>
> /* Right PGA Mux */
> static const struct snd_kcontrol_new wm8971_right_pga_controls =
> -SOC_DAPM_ENUM("Route", wm8971_enum[11]);
> +SOC_DAPM_ENUM("Route", right_pga);
>
> /* Mono ADC Mux */
> static const struct snd_kcontrol_new wm8971_monomux_controls =
> -SOC_DAPM_ENUM("Route", wm8971_enum[13]);
> +SOC_DAPM_ENUM("Route", monomux);
>
> static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = {
> SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
> @@ -534,6 +608,8 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
> break;
> }
>
> + wm8971_set_deemph(codec);
> +
> /* set iface & srate */
> snd_soc_write(codec, WM8971_IFACE, iface);
> if (coeff >= 0)
> --
Thanks,
Charles
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