ASoC: Add SOC_DOUBLE_R_SX_TLV control

This patch is adding a new control which has the following capabilities:
- tlv
- variable data size (for instance, 7 ou 8 bit)
- double mixer
- data range centered around 0

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Acked-by: Liam Girdwood <lrg@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 697e7ffe39d..65e9d03ed4f 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -170,6 +170,21 @@
         .get = xhandler_get, .put = xhandler_put, \
         .private_value = (unsigned long)&xenum }
 
+#define SOC_DOUBLE_R_SX_TLV(xname, xreg_left, xreg_right, xshift,\
+                xmin, xmax, 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_2r_sx, \
+        .get = snd_soc_get_volsw_2r_sx, \
+        .put = snd_soc_put_volsw_2r_sx, \
+        .private_value = (unsigned long)&(struct soc_mixer_control) \
+                {.reg = xreg_left, \
+                 .rreg = xreg_right, .shift = xshift, \
+                 .min = xmin, .max = xmax} }
+
+
 /*
  * Simplified versions of above macros, declaring a struct and calculating
  * ARRAY_SIZE internally
@@ -329,6 +344,12 @@ int snd_soc_put_volsw_s8(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_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_info *uinfo);
+int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_value *ucontrol);
+int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+        struct snd_ctl_elem_value *ucontrol);
 
 /**
  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection