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authorTorsten Schenk <torsten.schenk@zoho.com>2012-02-22 18:21:30 +0400
committerTakashi Iwai <tiwai@suse.de>2012-02-22 18:51:26 +0400
commit06bb4e7435019ff9b6dbc9b1d02d8babb36d8177 (patch)
tree535666c0d9876fae32ed4e43e410cf36f0ad993e /sound/usb
parentd97c735a1047fa06165e55da32154cf0e6b9419c (diff)
downloadlinux-06bb4e7435019ff9b6dbc9b1d02d8babb36d8177.tar.xz
ALSA: snd-usb-6fire: add analog input volume control
Add a stereo volume control for analog input channel pair 1/2. Signed-off-by: Torsten Schenk <torsten.schenk@zoho.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/6fire/control.c71
-rw-r--r--sound/usb/6fire/control.h2
2 files changed, 73 insertions, 0 deletions
diff --git a/sound/usb/6fire/control.c b/sound/usb/6fire/control.c
index a2bbf48c6413..07ed914d5e71 100644
--- a/sound/usb/6fire/control.c
+++ b/sound/usb/6fire/control.c
@@ -55,6 +55,7 @@ static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01};
static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00};
static DECLARE_TLV_DB_MINMAX(tlv_output, -9000, 0);
+static DECLARE_TLV_DB_MINMAX(tlv_input, -1500, 1500);
enum {
DIGITAL_THRU_ONLY_SAMPLERATE = 3
@@ -82,6 +83,20 @@ static void usb6fire_control_output_mute_update(struct control_runtime *rt)
comm_rt->write8(comm_rt, 0x12, 0x0e, ~rt->output_mute);
}
+static void usb6fire_control_input_vol_update(struct control_runtime *rt)
+{
+ struct comm_runtime *comm_rt = rt->chip->comm;
+ int i;
+
+ if (comm_rt)
+ for (i = 0; i < 2; i++)
+ if (!(rt->ivol_updated & (1 << i))) {
+ comm_rt->write8(comm_rt, 0x12, 0x1c + i,
+ rt->input_vol[i] & 0x3f);
+ rt->ivol_updated |= 1 << i;
+ }
+}
+
static void usb6fire_control_line_phono_update(struct control_runtime *rt)
{
struct comm_runtime *comm_rt = rt->chip->comm;
@@ -261,6 +276,50 @@ static int usb6fire_control_output_mute_get(struct snd_kcontrol *kcontrol,
return 0;
}
+static int usb6fire_control_input_vol_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 30;
+ return 0;
+}
+
+static int usb6fire_control_input_vol_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
+ int changed = 0;
+
+ if (rt->input_vol[0] != ucontrol->value.integer.value[0]) {
+ rt->input_vol[0] = ucontrol->value.integer.value[0] - 15;
+ rt->ivol_updated &= ~(1 << 0);
+ changed = 1;
+ }
+ if (rt->input_vol[1] != ucontrol->value.integer.value[1]) {
+ rt->input_vol[1] = ucontrol->value.integer.value[1] - 15;
+ rt->ivol_updated &= ~(1 << 1);
+ changed = 1;
+ }
+
+ if (changed)
+ usb6fire_control_input_vol_update(rt);
+
+ return changed;
+}
+
+static int usb6fire_control_input_vol_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] = rt->input_vol[0] + 15;
+ ucontrol->value.integer.value[1] = rt->input_vol[1] + 15;
+
+ return 0;
+}
+
static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
@@ -454,6 +513,17 @@ static struct __devinitdata snd_kcontrol_new elements[] = {
.get = usb6fire_control_digital_thru_get,
.put = usb6fire_control_digital_thru_put
},
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Analog Capture Volume",
+ .index = 0,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+ .info = usb6fire_control_input_vol_info,
+ .get = usb6fire_control_input_vol_get,
+ .put = usb6fire_control_input_vol_put,
+ .tlv = { .p = tlv_input }
+ },
{}
};
@@ -518,6 +588,7 @@ int __devinit usb6fire_control_init(struct sfire_chip *chip)
usb6fire_control_line_phono_update(rt);
usb6fire_control_output_vol_update(rt);
usb6fire_control_output_mute_update(rt);
+ usb6fire_control_input_vol_update(rt);
usb6fire_control_streaming_update(rt);
ret = usb6fire_control_add_virtual(rt, chip->card,
diff --git a/sound/usb/6fire/control.h b/sound/usb/6fire/control.h
index 9f9eb647bc6b..9a596d95474a 100644
--- a/sound/usb/6fire/control.h
+++ b/sound/usb/6fire/control.h
@@ -46,6 +46,8 @@ struct control_runtime {
u8 output_vol[6];
u8 ovol_updated;
u8 output_mute;
+ s8 input_vol[2];
+ u8 ivol_updated;
};
int __devinit usb6fire_control_init(struct sfire_chip *chip);