[ALSA] Keep private TLV entry in vmaster itself

Use a private array for TLV entries of virtual master controls instead
of (supposed) static array.  This cleans up the existing codes.

Also, now vmaster assumes the simple dB-range TLV that is the only type
it can handle.

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

5 files changed, 16 insertions, 15 deletions

diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c
index 7cfd8b8fb4e7..4cc57f902e2c 100644
--- a/sound/core/vmaster.c
+++ b/sound/core/vmaster.c
@@ -12,6 +12,7 @@
 #include <linux/slab.h>
 #include <sound/core.h>
 #include <sound/control.h>
+#include <sound/tlv.h>
 
 /*
  * a subset of information returned via ctl info callback
@@ -34,6 +35,7 @@ struct link_master {
         struct list_head slaves;
         struct link_ctl_info info;
         int val;                /* the master value */
+        unsigned int tlv[4];
 };
 
 /*
@@ -357,11 +359,12 @@ struct snd_kcontrol *snd_ctl_make_virtual_master(char *name,
         kctl->private_free = master_free;
 
         /* additional (constant) TLV read */
-        if (tlv) {
-                /* FIXME: this assumes that the max volume is 0 dB */
+        if (tlv && tlv[0] == SNDRV_CTL_TLVT_DB_SCALE) {
                 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
-                kctl->tlv.p = tlv;
+                memcpy(master->tlv, tlv, sizeof(master->tlv));
+                kctl->tlv.p = master->tlv;
         }
+
         return kctl;
 }
 
diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile
index 9e0d8a1268aa..ab0c726d648e 100644
--- a/sound/pci/hda/Makefile
+++ b/sound/pci/hda/Makefile
@@ -2,7 +2,7 @@ snd-hda-intel-y := hda_intel.o
 # since snd-hda-intel is the only driver using hda-codec,
 # merge it into a single module although it was originally
 # designed to be individual modules
-snd-hda-intel-y += hda_codec.o vmaster.o
+snd-hda-intel-y += hda_codec.o
 snd-hda-intel-$(CONFIG_PROC_FS) += hda_proc.o
 snd-hda-intel-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o
 snd-hda-intel-$(CONFIG_SND_HDA_GENERIC) += hda_generic.o
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 3f3905cc4e01..e0f3559f8b13 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -80,7 +80,6 @@ struct ad198x_spec {
 #endif
         /* for virtual master */
         hda_nid_t vmaster_nid;
-        u32 vmaster_tlv[4];
         const char **slave_vols;
         const char **slave_sws;
 };
@@ -185,10 +184,11 @@ static int ad198x_build_controls(struct hda_codec *codec)
 
         /* if we have no master control, let's create it */
         if (!snd_hda_find_mixer_ctl(codec, "Master Playback Volume")) {
+                unsigned int vmaster_tlv[4];
                 snd_hda_set_vmaster_tlv(codec, spec->vmaster_nid,
-                                        HDA_OUTPUT, spec->vmaster_tlv);
+                                        HDA_OUTPUT, vmaster_tlv);
                 err = snd_hda_add_vmaster(codec, "Master Playback Volume",
-                                          spec->vmaster_tlv,
+                                          vmaster_tlv,
                                           (spec->slave_vols ?
                                            spec->slave_vols : ad_slave_vols));
                 if (err < 0)
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index eea18b3336d3..e8ce525d297b 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -272,7 +272,6 @@ struct alc_spec {
 
         /* for virtual master */
         hda_nid_t vmaster_nid;
-        u32 vmaster_tlv[4];
 #ifdef CONFIG_SND_HDA_POWER_SAVE
         struct hda_loopback_check loopback;
 #endif
@@ -1534,10 +1533,11 @@ static int alc_build_controls(struct hda_codec *codec)
 
         /* if we have no master control, let's create it */
         if (!snd_hda_find_mixer_ctl(codec, "Master Playback Volume")) {
+                unsigned int vmaster_tlv[4];
                 snd_hda_set_vmaster_tlv(codec, spec->vmaster_nid,
-                                        HDA_OUTPUT, spec->vmaster_tlv);
+                                        HDA_OUTPUT, vmaster_tlv);
                 err = snd_hda_add_vmaster(codec, "Master Playback Volume",
-                                          spec->vmaster_tlv, alc_slave_vols);
+                                          vmaster_tlv, alc_slave_vols);
                 if (err < 0)
                         return err;
         }
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 7901e76f2690..132d1e3eafa5 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -186,9 +186,6 @@ struct sigmatel_spec {
         struct hda_input_mux private_dimux;
         struct hda_input_mux private_imux;
         struct hda_input_mux private_mono_mux;
-
-        /* virtual master */
-        unsigned int vmaster_tlv[4];
 };
 
 static hda_nid_t stac9200_adc_nids[1] = {
@@ -930,10 +927,11 @@ static int stac92xx_build_controls(struct hda_codec *codec)
 
         /* if we have no master control, let's create it */
         if (!snd_hda_find_mixer_ctl(codec, "Master Playback Volume")) {
+                unsigned int vmaster_tlv[4];
                 snd_hda_set_vmaster_tlv(codec, spec->multiout.dac_nids[0],
-                                        HDA_OUTPUT, spec->vmaster_tlv);
+                                        HDA_OUTPUT, vmaster_tlv);
                 err = snd_hda_add_vmaster(codec, "Master Playback Volume",
-                                          spec->vmaster_tlv, slave_vols);
+                                          vmaster_tlv, slave_vols);
                 if (err < 0)
                         return err;
         }