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ASoC: arizona: Add voice trigger output widget 

In some situations the voice control firmware will by used
to only provide a trigger notification event. In this case a
compressed stream will not be opened by user-space, as such we
need to provide a virtual output to power on the DSP in this
use-case. This patch adds a virtual output 'DSP Voice Trigger'
that can be used for this, and a switch that lets it be connected
to the core when required.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2016-05-13 16:45:16 +01:00 committed by Mark Brown
parent 9fc772eca1
commit 97126ce8ce
4 changed files with 28 additions and 0 deletions
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8
sound/soc/codecs/arizona.c
View File

@ -810,6 +810,14 @@ const struct soc_enum arizona_output_anc_src[] = {
};
EXPORT_SYMBOL_GPL(arizona_output_anc_src);
const struct snd_kcontrol_new arizona_voice_trigger_switch[] = {
SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 0, 1, 0),
SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 1, 1, 0),
SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 2, 1, 0),
SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 3, 1, 0),
};
EXPORT_SYMBOL_GPL(arizona_voice_trigger_switch);
static void arizona_in_set_vu(struct snd_soc_codec *codec, int ena)
{
struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);

2
sound/soc/codecs/arizona.h
View File

@ -248,6 +248,8 @@ extern const struct soc_enum arizona_anc_input_src[];
extern const struct soc_enum arizona_anc_ng_enum;
extern const struct soc_enum arizona_output_anc_src[];
extern const struct snd_kcontrol_new arizona_voice_trigger_switch[];
extern int arizona_in_ev(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event);

9
sound/soc/codecs/cs47l24.c
View File

@ -359,6 +359,11 @@ SND_SOC_DAPM_INPUT("IN2R"),
SND_SOC_DAPM_OUTPUT("DRC1 Signal Activity"),
SND_SOC_DAPM_OUTPUT("DRC2 Signal Activity"),
SND_SOC_DAPM_OUTPUT("DSP Voice Trigger"),
SND_SOC_DAPM_SWITCH("DSP3 Voice Trigger", SND_SOC_NOPM, 2, 0,
&arizona_voice_trigger_switch[2]),
SND_SOC_DAPM_PGA_E("IN1L PGA", ARIZONA_INPUT_ENABLES, ARIZONA_IN1L_ENA_SHIFT,
0, NULL, 0, arizona_in_ev,
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD |
@ -905,6 +910,10 @@ static const struct snd_soc_dapm_route cs47l24_dapm_routes[] = {
{ "DRC1 Signal Activity", NULL, "DRC1R" },
{ "DRC2 Signal Activity", NULL, "DRC2L" },
{ "DRC2 Signal Activity", NULL, "DRC2R" },
{ "DSP Voice Trigger", NULL, "SYSCLK" },
{ "DSP Voice Trigger", NULL, "DSP3 Voice Trigger" },
{ "DSP3 Voice Trigger", "Switch", "DSP3" },
};
static int cs47l24_set_fll(struct snd_soc_codec *codec, int fll_id, int source,

9
sound/soc/codecs/wm5110.c
View File

@ -1104,6 +1104,11 @@ SND_SOC_DAPM_INPUT("IN4R"),
SND_SOC_DAPM_OUTPUT("DRC1 Signal Activity"),
SND_SOC_DAPM_OUTPUT("DRC2 Signal Activity"),
SND_SOC_DAPM_OUTPUT("DSP Voice Trigger"),
SND_SOC_DAPM_SWITCH("DSP3 Voice Trigger", SND_SOC_NOPM, 2, 0,
&arizona_voice_trigger_switch[2]),
SND_SOC_DAPM_PGA_E("IN1L PGA", ARIZONA_INPUT_ENABLES, ARIZONA_IN1L_ENA_SHIFT,
0, NULL, 0, wm5110_in_ev,
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD |
@ -2003,6 +2008,10 @@ static const struct snd_soc_dapm_route wm5110_dapm_routes[] = {
{ "DRC1 Signal Activity", NULL, "DRC1R" },
{ "DRC2 Signal Activity", NULL, "DRC2L" },
{ "DRC2 Signal Activity", NULL, "DRC2R" },
{ "DSP Voice Trigger", NULL, "SYSCLK" },
{ "DSP Voice Trigger", NULL, "DSP3 Voice Trigger" },
{ "DSP3 Voice Trigger", "Switch", "DSP3" },
};
static int wm5110_set_fll(struct snd_soc_codec *codec, int fll_id, int source,