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Commit 44832a71 authored by Vasily Khoruzhick's avatar Vasily Khoruzhick Committed by Takashi Iwai
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ALSA: usb-audio: add front jack channel selector for EMU0204 



Add support for front jack channel selector which is present on EMU0204.
It allows to get 4 channels out of this soundcard.

Tested-by: default avatarYury Bushmelev <jay@jay-tech.ru>
Signed-off-by: default avatarVasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent d183b4fc

sound/usb/mixer_quirks.c

+90 −0
Original line number Original line Diff line number Diff line
@@ -433,6 +433,89 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry, 
	}

	}

}

}





/* EMU0204 */

static int snd_emu0204_ch_switch_info(struct snd_kcontrol *kcontrol,

				      struct snd_ctl_elem_info *uinfo)

{

	static const char *texts[2] = {"1/2",

				       "3/4"

	};



	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;

	uinfo->count = 1;

	uinfo->value.enumerated.items = 2;

	if (uinfo->value.enumerated.item > 1)

		uinfo->value.enumerated.item = 1;

	strcpy(uinfo->value.enumerated.name,

		texts[uinfo->value.enumerated.item]);



	return 0;

}



static int snd_emu0204_ch_switch_get(struct snd_kcontrol *kcontrol,

				     struct snd_ctl_elem_value *ucontrol)

{

	ucontrol->value.enumerated.item[0] = kcontrol->private_value;

	return 0;

}



static int snd_emu0204_ch_switch_put(struct snd_kcontrol *kcontrol,

				     struct snd_ctl_elem_value *ucontrol)

{

	struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);

	unsigned int value = ucontrol->value.enumerated.item[0];

	int err, changed;

	unsigned char buf[2];



	if (value > 1)

		return -EINVAL;



	buf[0] = 0x01;

	buf[1] = value ? 0x02 : 0x01;



	changed = value != kcontrol->private_value;

	down_read(&mixer->chip->shutdown_rwsem);

	if (mixer->chip->shutdown) {

		err = -ENODEV;

		goto out;

	}

	err = snd_usb_ctl_msg(mixer->chip->dev,

		      usb_sndctrlpipe(mixer->chip->dev, 0), UAC_SET_CUR,

		      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,

		      0x0400, 0x0e00, buf, 2);

 out:

	up_read(&mixer->chip->shutdown_rwsem);

	if (err < 0)

		return err;

	kcontrol->private_value = value;

	return changed;

}





static struct snd_kcontrol_new snd_emu0204_controls[] = {

	{

		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,

		.name = "Front Jack Channels",

		.info = snd_emu0204_ch_switch_info,

		.get = snd_emu0204_ch_switch_get,

		.put = snd_emu0204_ch_switch_put,

		.private_value = 0,

	},

};



static int snd_emu0204_controls_create(struct usb_mixer_interface *mixer)

{

	int i, err;



	for (i = 0; i < ARRAY_SIZE(snd_emu0204_controls); ++i) {

		err = snd_ctl_add(mixer->chip->card,

			snd_ctl_new1(&snd_emu0204_controls[i], mixer));

		if (err < 0)

			return err;

	}



	return 0;

}

/* ASUS Xonar U1 / U3 controls */

/* ASUS Xonar U1 / U3 controls */





static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol,

static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol,
@@ -1545,6 +1628,13 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) 
					      snd_audigy2nx_proc_read);

					      snd_audigy2nx_proc_read);

		break;

		break;





	/* EMU0204 */

	case USB_ID(0x041e, 0x3f19):

		err = snd_emu0204_controls_create(mixer);

		if (err < 0)

			break;

		break;



	case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */

	case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */

	case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C400 */

	case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C400 */

		err = snd_c400_create_mixer(mixer);

		err = snd_c400_create_mixer(mixer);