diff options
Diffstat (limited to 'include/sound/soc-dapm.h')
| -rw-r--r-- | include/sound/soc-dapm.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index cc3dcb815282..c3039e97929a 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -16,6 +16,8 @@ #include <sound/asoc.h> struct device; +struct snd_soc_pcm_runtime; +struct soc_enum; /* widget has no PM register bit */ #define SND_SOC_NOPM -1 @@ -376,6 +378,24 @@ struct snd_soc_dapm_widget_list; struct snd_soc_dapm_update; enum snd_soc_dapm_direction; +/* + * Bias levels + * + * @ON: Bias is fully on for audio playback and capture operations. + * @PREPARE: Prepare for audio operations. Called before DAPM switching for + * stream start and stop operations. + * @STANDBY: Low power standby state when no playback/capture operations are + * in progress. NOTE: The transition time between STANDBY and ON + * should be as fast as possible and no longer than 10ms. + * @OFF: Power Off. No restrictions on transition times. + */ +enum snd_soc_bias_level { + SND_SOC_BIAS_OFF = 0, + SND_SOC_BIAS_STANDBY = 1, + SND_SOC_BIAS_PREPARE = 2, + SND_SOC_BIAS_ON = 3, +}; + int dapm_regulator_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event); int dapm_clock_event(struct snd_soc_dapm_widget *w, |