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authorMark Brown <broonie@opensource.wolfsonmicro.com>2008-05-19 12:31:28 +0200
committerJaroslav Kysela <perex@perex.cz>2008-05-19 17:28:43 +0200
commit0be9898adb6f58fee44f0fec0bbc0eac997ea9eb (patch)
tree61842c7381c7dcc4060280357a9a5fc08f4db023 /include/sound/soc-dapm.h
parent1ef6ab75c7deef931d6308af282ed7d8e480e77f (diff)
downloadop-kernel-dev-0be9898adb6f58fee44f0fec0bbc0eac997ea9eb.zip
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[ALSA] ASoC: Clarify API for bias configuration
Currently the ASoC core configures the bias levels in the system using a callback on codecs and machines called 'dapm_event', passing it PCI style power levels as SNDRV_CTL_POWER_ constants. This is more obscure than it needs to be and has caused confusion to driver authors, especially given that DAPM is also performing power management. Address this by renaming the callback function to 'set_bias_level' and using constants explicitly representing the off, standby, pre-on and on states which DAPM transitions through. Also unexport the API for setting bias level: there are currently no in-tree users of this API other than the core itself and it is likely that the core would need to be extended to cater for any users. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'include/sound/soc-dapm.h')
-rw-r--r--include/sound/soc-dapm.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index bf4cf0c..f8223fa 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -221,7 +221,8 @@ int snd_soc_dapm_add_routes(struct snd_soc_codec *codec,
/* dapm events */
int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, char *stream,
int event);
-int snd_soc_dapm_device_event(struct snd_soc_device *socdev, int event);
+int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
+ enum snd_soc_bias_level level);
/* dapm sys fs - used by the core */
int snd_soc_dapm_sys_add(struct device *dev);
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