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sound: usb-audio: Xonar U1 digital output support 

Add support for the Asus Xonar U1.  This device is mostly class compliant, but
the digital output requires a vendor-specific request.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch 2009-07-13 11:39:29 +02:00 committed by Takashi Iwai
parent 8886f33f25
commit 468b8fde24
1 changed files with 60 additions and 0 deletions
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60
sound/usb/usbmixer.c
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@ -86,6 +86,7 @@ struct usb_mixer_interface {
u8 rc_buffer[6];
u8 audigy2nx_leds[3];
u8 xonar_u1_status;
};
@ -2018,6 +2019,58 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
}
}
static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = !!(mixer->xonar_u1_status & 0x02);
return 0;
}
static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
u8 old_status, new_status;
int err, changed;
old_status = mixer->xonar_u1_status;
if (ucontrol->value.integer.value[0])
new_status = old_status | 0x02;
else
new_status = old_status & ~0x02;
changed = new_status != old_status;
err = snd_usb_ctl_msg(mixer->chip->dev,
usb_sndctrlpipe(mixer->chip->dev, 0), 0x08,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
50, 0, &new_status, 1, 100);
if (err < 0)
return err;
mixer->xonar_u1_status = new_status;
return changed;
}
static struct snd_kcontrol_new snd_xonar_u1_output_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Digital Playback Switch",
.info = snd_ctl_boolean_mono_info,
.get = snd_xonar_u1_switch_get,
.put = snd_xonar_u1_switch_put,
};
static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer)
{
int err;
err = snd_ctl_add(mixer->chip->card,
snd_ctl_new1(&snd_xonar_u1_output_switch, mixer));
if (err < 0)
return err;
mixer->xonar_u1_status = 0x05;
return 0;
}
int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
int ignore_error)
{
@ -2060,6 +2113,13 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
snd_audigy2nx_proc_read);
}
if (mixer->chip->usb_id == USB_ID(0x0b05, 0x1739) ||
mixer->chip->usb_id == USB_ID(0x0b05, 0x1743)) {
err = snd_xonar_u1_controls_create(mixer);
if (err < 0)
goto _error;
}
err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops);
if (err < 0)
goto _error;