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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
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+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,
+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