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ASoC: Make the DAPM power check an operation on the widget 

Rather than having switch statements at point of use make the DAPM
power check a member of the widget structure and set it when we
instantiate the widget.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2009-04-20 17:56:13 +01:00
parent 6ea31b9f0a
commit b75576d76d
2 changed files with 15 additions and 14 deletions
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2
include/sound/soc-dapm.h
View File

@ -367,6 +367,8 @@ struct snd_soc_dapm_widget {
unsigned char suspend:1; /* was active before suspend */
unsigned char pmdown:1; /* waiting for timeout */
int (*power_check)(struct snd_soc_dapm_widget *w);
/* external events */
unsigned short event_flags; /* flags to specify event types */
int (*event)(struct snd_soc_dapm_widget*, struct snd_kcontrol *, int);

27
sound/soc/soc-dapm.c
View File

@ -631,20 +631,7 @@ static int dapm_power_widget(struct snd_soc_codec *codec, int event,
{
int power, ret;
/* Work out the new power state */
switch (w->id) {
case snd_soc_dapm_vmid:
/* No action required */
return 0;
case snd_soc_dapm_adc:
power = dapm_adc_check_power(w);
break;
case snd_soc_dapm_dac:
power = dapm_dac_check_power(w);
break;
case snd_soc_dapm_pre:
if (!w->event)
return 0;
@ -680,10 +667,13 @@ static int dapm_power_widget(struct snd_soc_codec *codec, int event,
return 0;
default:
power = dapm_generic_check_power(w);
break;
}
if (!w->power_check)
return 0;
power = w->power_check(w);
if (w->power == power)
return 0;
w->power = power;
@ -1147,15 +1137,22 @@ int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec)
case snd_soc_dapm_switch:
case snd_soc_dapm_mixer:
case snd_soc_dapm_mixer_named_ctl:
w->power_check = dapm_generic_check_power;
dapm_new_mixer(codec, w);
break;
case snd_soc_dapm_mux:
case snd_soc_dapm_value_mux:
w->power_check = dapm_generic_check_power;
dapm_new_mux(codec, w);
break;
case snd_soc_dapm_adc:
w->power_check = dapm_adc_check_power;
break;
case snd_soc_dapm_dac:
w->power_check = dapm_dac_check_power;
break;
case snd_soc_dapm_pga:
w->power_check = dapm_generic_check_power;
dapm_new_pga(codec, w);
break;
case snd_soc_dapm_input:
@ -1165,6 +1162,8 @@ int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec)
case snd_soc_dapm_hp:
case snd_soc_dapm_mic:
case snd_soc_dapm_line:
w->power_check = dapm_generic_check_power;
break;
case snd_soc_dapm_vmid:
case snd_soc_dapm_pre:
case snd_soc_dapm_post: