ASoC: core: Add single controls with specified range of values

Control type added for cases where a specific range of values
within a register are required for control.

Added convenience macros:

SOC_SINGLE_RANGE
SOC_SINGLE_RANGE_TLV

Added accessor implementations:

snd_soc_info_volsw_range
snd_soc_put_volsw_range
snd_soc_get_volsw_range

Signed-off-by: Michal Hajduk <Michal.Hajduk@diasemi.com>
Signed-off-by: Adam Thomson <Adam.Thomson@diasemi.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 23c4efbe13a6..e4348d25fca3 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -47,6 +47,13 @@
         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
         .put = snd_soc_put_volsw, \
         .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
+#define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \
+{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
+        .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \
+        .put = snd_soc_put_volsw_range, \
+        .private_value = (unsigned long)&(struct soc_mixer_control) \
+                {.reg = xreg, .shift = xshift, .min = xmin,\
+                 .max = xmax, .platform_max = xmax, .invert = xinvert} }
 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
@@ -67,6 +74,16 @@
                 {.reg = xreg, .rreg = xreg, \
                 .shift = xshift, .rshift = xshift, \
                 .max = xmax, .min = xmin} }
+#define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
+{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
+        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
+                 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
+        .tlv.p = (tlv_array), \
+        .info = snd_soc_info_volsw_range, \
+        .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
+        .private_value = (unsigned long)&(struct soc_mixer_control) \
+                {.reg = xreg, .shift = xshift, .min = xmin,\
+                 .max = xmax, .platform_max = xmax, .invert = xinvert} }
 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
@@ -460,6 +477,12 @@ int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
         struct snd_ctl_elem_value *ucontrol);
 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
         struct snd_ctl_elem_value *ucontrol);
+int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_info *uinfo);
+int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_value *ucontrol);
+int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_value *ucontrol);
 int snd_soc_limit_volume(struct snd_soc_codec *codec,
         const char *name, int max);
 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,