[ALSA] Move vmaster code to sound core

Move the codes for virtual master controls to sound core part so that
not only hda-intel drivers can use it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

6 files changed, 17 insertions, 7 deletions

diff --git a/include/sound/control.h b/include/sound/control.h
index e79baa63912f..3dc1291f52db 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -169,4 +169,11 @@ int snd_ctl_boolean_mono_info(struct snd_kcontrol *kcontrol,
 int snd_ctl_boolean_stereo_info(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_info *uinfo);
 
+/*
+ * virtual master control
+ */
+struct snd_kcontrol *snd_ctl_make_virtual_master(char *name,
+                                                 const unsigned int *tlv);
+int snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave);
+                      
 #endif  /* __SOUND_CONTROL_H */
diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index 829ca38b595e..a8d71c6c8e75 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -181,3 +181,7 @@ config SND_PCM_XRUN_DEBUG
           It is usually not required, but if you have trouble with
           sound clicking when system is loaded, it may help to determine
           the process or driver which causes the scheduling gaps.
+
+config SND_VMASTER
+        bool
+        depends on SND
diff --git a/sound/core/Makefile b/sound/core/Makefile
index 267039a97bd5..da8e685eef9c 100644
--- a/sound/core/Makefile
+++ b/sound/core/Makefile
@@ -6,6 +6,7 @@
 snd-y     := sound.o init.o memory.o info.o control.o misc.o device.o
 snd-$(CONFIG_ISA_DMA_API) += isadma.o
 snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o info_oss.o
+snd-$(CONFIG_SND_VMASTER) += vmaster.o
 
 snd-pcm-objs := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \
                 pcm_memory.o
diff --git a/sound/pci/hda/vmaster.c b/sound/core/vmaster.c
index 2da49d20a1fc..7cfd8b8fb4e7 100644
--- a/sound/pci/hda/vmaster.c
+++ b/sound/core/vmaster.c
@@ -253,6 +253,8 @@ int snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
         return 0;
 }
 
+EXPORT_SYMBOL(snd_ctl_add_slave);
+
 /*
  * ctl callbacks for master controls
  */
@@ -362,3 +364,5 @@ struct snd_kcontrol *snd_ctl_make_virtual_master(char *name,
         }
         return kctl;
 }
+
+EXPORT_SYMBOL(snd_ctl_make_virtual_master);
diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 812085d521f1..48296d97bf33 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -517,6 +517,7 @@ config SND_HDA_INTEL
         tristate "Intel HD Audio"
         depends on SND
         select SND_PCM
+        select SND_VMASTER
         help
           Say Y here to include support for Intel "High Definition
           Audio" (Azalia) motherboard devices.
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index ce2ad42a8a8a..5c9e578f7f2d 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -418,11 +418,4 @@ int snd_hda_check_amp_list_power(struct hda_codec *codec,
                                  hda_nid_t nid);
 #endif /* CONFIG_SND_HDA_POWER_SAVE */
 
-/*
- * virtual master control
- */
-struct snd_kcontrol *snd_ctl_make_virtual_master(char *name,
-                                                 const unsigned int *tlv);
-int snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave);
-                      
 #endif /* __SOUND_HDA_LOCAL_H */