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Commit 468b8fde authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Takashi Iwai
Browse files

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: default avatarClemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 8886f33f

sound/usb/usbmixer.c

+60 −0
Original line number Diff line number Diff line
@@ -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;