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authorKristoffer KARLSSON <kristoffer.karlsson@stericsson.com>2012-04-20 11:32:44 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-23 20:05:06 +0100
commitdd7b10b30c40dddb9750926d78cfe89c0cd8434d (patch)
tree84084ba083aa317576dd37d62070fd160c6e07de /include/sound/soc.h
parent4183eed288f31c3b9142476915e842f879f36b8e (diff)
downloadop-kernel-dev-dd7b10b30c40dddb9750926d78cfe89c0cd8434d.zip
op-kernel-dev-dd7b10b30c40dddb9750926d78cfe89c0cd8434d.tar.gz
ASoC: core: Add strobe control
Added support for a control that strobes a bit in a register to high then back to low (or the inverse). This is typically useful for hardware that requires strobing a singe bit to trigger some functionality and where exposing the bit in a normal single control would require the user to first manually set then again unset the bit again for the strobe to trigger. Added convenience macro. SOC_SINGLE_STROBE Added accessor implementations. snd_soc_get_strobe snd_soc_put_strobe Signed-off-by: Kristoffer KARLSSON <kristoffer.karlsson@stericsson.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound/soc.h')
-rw-r--r--include/sound/soc.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index c0656b7..1f38aa1 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -219,6 +219,10 @@
{.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
.invert = xinvert, .min = xmin, .max = xmax} }
+#define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
+ SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
+ snd_soc_get_strobe, snd_soc_put_strobe)
+
/*
* Simplified versions of above macros, declaring a struct and calculating
* ARRAY_SIZE internally
@@ -461,6 +465,10 @@ int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
+int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol);
+int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol);
/**
* struct snd_soc_reg_access - Describes whether a given register is
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