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| author | Kristoffer KARLSSON <kristoffer.karlsson@stericsson.com> | 2012-04-20 11:32:44 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-23 20:05:06 +0100 |
| commit | dd7b10b30c40dddb9750926d78cfe89c0cd8434d (patch) | |
| tree | 84084ba083aa317576dd37d62070fd160c6e07de /include/sound | |
| parent | 4183eed288f31c3b9142476915e842f879f36b8e (diff) | |
| download | linux-dd7b10b30c40dddb9750926d78cfe89c0cd8434d.tar.bz2 | |
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')
| -rw-r--r-- | include/sound/soc.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index c0656b771c38..1f38aa1653c8 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 |