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Commit 066624c6 authored by Przemek Rudy's avatar Przemek Rudy Committed by Takashi Iwai
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ALSA: usb-audio: Add Audio Advantage Micro II 



This patch is adding extensive support (beside standard usb audio class)
for Audio Advantage Micro II usb sound card.
Features included:
- Access to AES bits (so now sending the IEC61937 compliant stream is
possible).
- Mixer SPDIF control added to turn on/off the optical transmitter.

Signed-off-by: default avatarPrzemek Rudy <prudy1@o2.pl>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent accaf69d

sound/usb/mixer_quirks.c

+212 −0
Original line number Diff line number Diff line
@@ -9,6 +9,8 @@ 
 *	    Alan Cox (alan@lxorguk.ukuu.org.uk)

 *	    Thomas Sailer (sailer@ife.ee.ethz.ch)

 *

 *   Audio Advantage Micro II support added by:

 *	    Przemek Rudy (prudy1@o2.pl)

 *

 *   This program is free software; you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by
@@ -30,6 +32,7 @@ 
#include <linux/usb.h>

#include <linux/usb/audio.h>



#include <sound/asoundef.h>

#include <sound/core.h>

#include <sound/control.h>

#include <sound/hwdep.h>
@@ -1315,6 +1318,211 @@ static struct std_mono_table ebox44_table[] = { 
	{}

};



/* Audio Advantage Micro II findings:

 *

 * Mapping spdif AES bits to vendor register.bit:

 * AES0: [0 0 0 0 2.3 2.2 2.1 2.0] - default 0x00

 * AES1: [3.3 3.2.3.1.3.0 2.7 2.6 2.5 2.4] - default: 0x01

 * AES2: [0 0 0 0 0 0 0 0]

 * AES3: [0 0 0 0 0 0 x 0] - 'x' bit is set basing on standard usb request

 *                           (UAC_EP_CS_ATTR_SAMPLE_RATE) for Audio Devices

 *

 * power on values:

 * r2: 0x10

 * r3: 0x20 (b7 is zeroed just before playback (except IEC61937) and set

 *           just after it to 0xa0, presumably it disables/mutes some analog

 *           parts when there is no audio.)

 * r9: 0x28

 *

 * Optical transmitter on/off:

 * vendor register.bit: 9.1

 * 0 - on (0x28 register value)

 * 1 - off (0x2a register value)

 *

 */

static int snd_microii_spdif_info(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_info *uinfo)

{

	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;

	uinfo->count = 1;

	return 0;

}



static int snd_microii_spdif_default_get(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol)

{

	struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);

	int err;

	struct usb_interface *iface;

	struct usb_host_interface *alts;

	unsigned int ep;

	unsigned char data[3];

	int rate;



	ucontrol->value.iec958.status[0] = kcontrol->private_value & 0xff;

	ucontrol->value.iec958.status[1] = (kcontrol->private_value >> 8) & 0xff;

	ucontrol->value.iec958.status[2] = 0x00;



	/* use known values for that card: interface#1 altsetting#1 */

	iface = usb_ifnum_to_if(mixer->chip->dev, 1);

	alts = &iface->altsetting[1];

	ep = get_endpoint(alts, 0)->bEndpointAddress;



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

			usb_rcvctrlpipe(mixer->chip->dev, 0),

			UAC_GET_CUR,

			USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN,

			UAC_EP_CS_ATTR_SAMPLE_RATE << 8,

			ep,

			data,

			sizeof(data));

	if (err < 0)

		goto end;



	rate = data[0] | (data[1] << 8) | (data[2] << 16);

	ucontrol->value.iec958.status[3] = (rate == 48000) ?

			IEC958_AES3_CON_FS_48000 : IEC958_AES3_CON_FS_44100;



	err = 0;

end:

	return err;

}



static int snd_microii_spdif_default_put(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol)

{

	struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);

	int err;

	u8 reg;

	unsigned long priv_backup = kcontrol->private_value;



	reg = ((ucontrol->value.iec958.status[1] & 0x0f) << 4) |

			(ucontrol->value.iec958.status[0] & 0x0f);

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

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

			UAC_SET_CUR,

			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,

			reg,

			2,

			NULL,

			0);

	if (err < 0)

		goto end;



	kcontrol->private_value &= 0xfffff0f0;

	kcontrol->private_value |= (ucontrol->value.iec958.status[1] & 0x0f) << 8;

	kcontrol->private_value |= (ucontrol->value.iec958.status[0] & 0x0f);



	reg = (ucontrol->value.iec958.status[0] & IEC958_AES0_NONAUDIO) ?

			0xa0 : 0x20;

	reg |= (ucontrol->value.iec958.status[1] >> 4) & 0x0f;

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

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

			UAC_SET_CUR,

			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,

			reg,

			3,

			NULL,

			0);

	if (err < 0)

		goto end;



	kcontrol->private_value &= 0xffff0fff;

	kcontrol->private_value |= (ucontrol->value.iec958.status[1] & 0xf0) << 8;



	/* The frequency bits in AES3 cannot be set via register access. */



	/* Silently ignore any bits from the request that cannot be set. */



	err = (priv_backup != kcontrol->private_value);

end:

	return err;

}



static int snd_microii_spdif_mask_get(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol)

{

	ucontrol->value.iec958.status[0] = 0x0f;

	ucontrol->value.iec958.status[1] = 0xff;

	ucontrol->value.iec958.status[2] = 0x00;

	ucontrol->value.iec958.status[3] = 0x00;



	return 0;

}



static int snd_microii_spdif_switch_get(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol)

{

	ucontrol->value.integer.value[0] = !(kcontrol->private_value & 0x02);



	return 0;

}



static int snd_microii_spdif_switch_put(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol)

{

	struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);

	int err;

	u8 reg = ucontrol->value.integer.value[0] ? 0x28 : 0x2a;



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

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

			UAC_SET_CUR,

			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,

			reg,

			9,

			NULL,

			0);



	if (!err) {

		err = (reg != (kcontrol->private_value & 0x0ff));

		if (err)

			kcontrol->private_value = reg;

	}



	return err;

}



static struct snd_kcontrol_new snd_microii_mixer_spdif[] = {

	{

		.iface =    SNDRV_CTL_ELEM_IFACE_PCM,

		.name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),

		.info =     snd_microii_spdif_info,

		.get =      snd_microii_spdif_default_get,

		.put =      snd_microii_spdif_default_put,

		.private_value = 0x00000100UL,/* reset value */

	},

	{

		.access =   SNDRV_CTL_ELEM_ACCESS_READ,

		.iface =    SNDRV_CTL_ELEM_IFACE_PCM,

		.name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),

		.info =     snd_microii_spdif_info,

		.get =      snd_microii_spdif_mask_get,

	},

	{

		.iface =    SNDRV_CTL_ELEM_IFACE_MIXER,

		.name =     SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),

		.info =     snd_ctl_boolean_mono_info,

		.get =      snd_microii_spdif_switch_get,

		.put =      snd_microii_spdif_switch_put,

		.private_value = 0x00000028UL,/* reset value */

	}

};



static int snd_microii_controls_create(struct usb_mixer_interface *mixer)

{

	int err, i;



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

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

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

		if (err < 0)

			return err;

	}



	return err;

}



int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)

{

	int err = 0;
@@ -1353,6 +1561,10 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) 
		err = snd_xonar_u1_controls_create(mixer);

		break;



	case USB_ID(0x0d8c, 0x0103): /* Audio Advantage Micro II */

		err = snd_microii_controls_create(mixer);

		break;



	case USB_ID(0x17cc, 0x1011): /* Traktor Audio 6 */

		err = snd_nativeinstruments_create_mixer(mixer,

				snd_nativeinstruments_ta6_mixers,

sound/usb/quirks-table.h

+12 −0
Original line number Diff line number Diff line
@@ -3119,4 +3119,16 @@ YAMAHA_DEVICE(0x7010, "UB99"), 
	}

},



{

	/*

	 * The original product_name is "USB Sound Device", however this name

	 * is also used by the CM106 based cards, so make it unique.

	 */

	USB_DEVICE(0x0d8c, 0x0103),

	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {

		.product_name = "Audio Advantage MicroII",

		.ifnum = QUIRK_NO_INTERFACE

	}

},



#undef USB_DEVICE_VENDOR_SPEC