forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ASoC: core: Add signed multi register control

Browse source 
Added control type that can span multiple consecutive codec registers
forming a single signed value in a MSB/LSB manner.
The control dynamically adjusts to the register word size configured
in driver.

Added convenience macro.

SOC_SINGLE_XR_SX

Added accessor implementations.

snd_soc_info_xr_sx
snd_soc_get_xr_sx
snd_soc_put_xr_sx

Signed-off-by: Kristoffer KARLSSON <kristoffer.karlsson@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Kristoffer KARLSSON 2012-04-20 11:32:13 +02:00 • committed by Mark Brown
parent c1a4ecd921
commit 4183eed288
2 changed files with 139 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

22
include/sound/soc.h
View file

@ -210,6 +210,15 @@
{.base = xbase, .num_regs = xregs, \
.mask = xmask }) }
#define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
xmin, xmax, xinvert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
.info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
.put = snd_soc_put_xr_sx, \
.private_value = (unsigned long)&(struct soc_mreg_control) \
{.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
.invert = xinvert, .min = xmin, .max = xmax} }
/*
* Simplified versions of above macros, declaring a struct and calculating
* ARRAY_SIZE internally
@ -446,7 +455,12 @@ int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo);
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);
/**
* struct snd_soc_reg_access - Describes whether a given register is
@ -932,6 +946,12 @@ struct soc_bytes {
u32 mask;
};
/* multi register control */
struct soc_mreg_control {
long min, max;
unsigned int regbase, regcount, nbits, invert;
};
/* enumerated kcontrol */
struct soc_enum {
unsigned short reg;