diff options
author | Torsten Schenk <torsten.schenk@zoho.com> | 2012-02-22 18:21:23 +0400 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2012-02-22 18:51:16 +0400 |
commit | d97c735a1047fa06165e55da32154cf0e6b9419c (patch) | |
tree | 859d77d248e5d15442dd7282be51dc522a1ad74b /sound/usb | |
parent | f90ffbf3c68a69714b4273b203d4deb5ae81d8d6 (diff) | |
download | linux-d97c735a1047fa06165e55da32154cf0e6b9419c.tar.xz |
ALSA: snd-usb-6fire: add mute control for analog outputs
Add a mute control for every analog output channel.
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.c | 95 | ||||
-rw-r--r-- | sound/usb/6fire/control.h | 1 |
2 files changed, 96 insertions, 0 deletions
diff --git a/sound/usb/6fire/control.c b/sound/usb/6fire/control.c index c22cc29e33d7..a2bbf48c6413 100644 --- a/sound/usb/6fire/control.c +++ b/sound/usb/6fire/control.c @@ -74,6 +74,14 @@ static void usb6fire_control_output_vol_update(struct control_runtime *rt) } } +static void usb6fire_control_output_mute_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + + if (comm_rt) + comm_rt->write8(comm_rt, 0x12, 0x0e, ~rt->output_mute); +} + static void usb6fire_control_line_phono_update(struct control_runtime *rt) { struct comm_runtime *comm_rt = rt->chip->comm; @@ -208,6 +216,51 @@ static int usb6fire_control_output_vol_get(struct snd_kcontrol *kcontrol, return 0; } +static int usb6fire_control_output_mute_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + u8 old = rt->output_mute; + u8 value = 0; + + if (ch > 4) { + snd_printk(KERN_ERR PREFIX "Invalid channel in volume control."); + return -EINVAL; + } + + rt->output_mute &= ~(3 << ch); + if (ucontrol->value.integer.value[0]) + value |= 1; + if (ucontrol->value.integer.value[1]) + value |= 2; + rt->output_mute |= value << ch; + + if (rt->output_mute != old) + usb6fire_control_output_mute_update(rt); + + return rt->output_mute != old; +} + +static int usb6fire_control_output_mute_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + u8 value = rt->output_mute >> ch; + + if (ch > 4) { + snd_printk(KERN_ERR PREFIX "Invalid channel in volume control."); + return -EINVAL; + } + + ucontrol->value.integer.value[0] = 1 & value; + value >>= 1; + ucontrol->value.integer.value[1] = 1 & value; + + return 0; +} + static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { @@ -339,6 +392,40 @@ static struct __devinitdata snd_kcontrol_new vol_elements[] = { {} }; +static struct __devinitdata snd_kcontrol_new mute_elements[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Switch", + .index = 0, + .private_value = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = usb6fire_control_output_mute_get, + .put = usb6fire_control_output_mute_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Switch", + .index = 1, + .private_value = 2, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = usb6fire_control_output_mute_get, + .put = usb6fire_control_output_mute_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Switch", + .index = 2, + .private_value = 4, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = usb6fire_control_output_mute_get, + .put = usb6fire_control_output_mute_put, + }, + {} +}; + static struct __devinitdata snd_kcontrol_new elements[] = { { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, @@ -430,13 +517,21 @@ int __devinit usb6fire_control_init(struct sfire_chip *chip) usb6fire_control_opt_coax_update(rt); usb6fire_control_line_phono_update(rt); usb6fire_control_output_vol_update(rt); + usb6fire_control_output_mute_update(rt); usb6fire_control_streaming_update(rt); ret = usb6fire_control_add_virtual(rt, chip->card, "Master Playback Volume", vol_elements); if (ret) { + snd_printk(KERN_ERR PREFIX "cannot add control.\n"); kfree(rt); + return ret; + } + ret = usb6fire_control_add_virtual(rt, chip->card, + "Master Playback Switch", mute_elements); + if (ret) { snd_printk(KERN_ERR PREFIX "cannot add control.\n"); + kfree(rt); return ret; } diff --git a/sound/usb/6fire/control.h b/sound/usb/6fire/control.h index ce024113c98f..9f9eb647bc6b 100644 --- a/sound/usb/6fire/control.h +++ b/sound/usb/6fire/control.h @@ -45,6 +45,7 @@ struct control_runtime { bool usb_streaming; u8 output_vol[6]; u8 ovol_updated; + u8 output_mute; }; int __devinit usb6fire_control_init(struct sfire_chip *chip); |