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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include <linux/usb/audio.h>
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#include <sound/control.h>
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#include <sound/core.h>
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#include <sound/info.h>
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#include <sound/pcm.h>
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#include "mixer_quirks.h"
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* handle the quirks for the contained interfaces
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static int create_composite_quirk(struct snd_usb_audio *chip,
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struct usb_interface *iface,
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struct usb_driver *driver,
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const struct snd_usb_audio_quirk *quirk)
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int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
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for (quirk = quirk->data; quirk->ifnum >= 0; ++quirk) {
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iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
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if (quirk->ifnum != probed_ifnum &&
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usb_interface_claimed(iface))
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err = snd_usb_create_quirk(chip, iface, driver, quirk);
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if (quirk->ifnum != probed_ifnum)
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usb_driver_claim_interface(driver, iface, (void *)-1L);
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static int ignore_interface_quirk(struct snd_usb_audio *chip,
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struct usb_interface *iface,
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struct usb_driver *driver,
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const struct snd_usb_audio_quirk *quirk)
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* Allow alignment on audio sub-slot (channel samples) rather than
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* on audio slots (audio frames)
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static int create_align_transfer_quirk(struct snd_usb_audio *chip,
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struct usb_interface *iface,
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struct usb_driver *driver,
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const struct snd_usb_audio_quirk *quirk)
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return 1; /* Continue with creating streams and mixer */
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static int create_any_midi_quirk(struct snd_usb_audio *chip,
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struct usb_interface *intf,
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struct usb_driver *driver,
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const struct snd_usb_audio_quirk *quirk)
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return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk);
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* create a stream for an interface with proper descriptors
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static int create_standard_audio_quirk(struct snd_usb_audio *chip,
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struct usb_interface *iface,
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struct usb_driver *driver,
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const struct snd_usb_audio_quirk *quirk)
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struct usb_host_interface *alts;
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struct usb_interface_descriptor *altsd;
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alts = &iface->altsetting[0];
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altsd = get_iface_desc(alts);
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err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber);
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snd_printk(KERN_ERR "cannot setup if %d: error %d\n",
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altsd->bInterfaceNumber, err);
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/* reset the current interface */
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usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
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* create a stream for an endpoint/altsetting without proper descriptors
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static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
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struct usb_interface *iface,
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struct usb_driver *driver,
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const struct snd_usb_audio_quirk *quirk)
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struct audioformat *fp;
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struct usb_host_interface *alts;
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unsigned *rate_table = NULL;
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fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
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snd_printk(KERN_ERR "cannot memdup\n");
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if (fp->nr_rates > 0) {
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rate_table = kmemdup(fp->rate_table,
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sizeof(int) * fp->nr_rates, GFP_KERNEL);
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fp->rate_table = rate_table;
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stream = (fp->endpoint & USB_DIR_IN)
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? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
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err = snd_usb_add_audio_stream(chip, stream, fp);
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if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
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fp->altset_idx >= iface->num_altsetting) {
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alts = &iface->altsetting[fp->altset_idx];
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fp->datainterval = snd_usb_parse_datainterval(chip, alts);
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fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
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usb_set_interface(chip->dev, fp->iface, 0);
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snd_usb_init_pitch(chip, fp->iface, alts, fp);
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snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
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* Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
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* The only way to detect the sample rate is by looking at wMaxPacketSize.
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static int create_uaxx_quirk(struct snd_usb_audio *chip,
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struct usb_interface *iface,
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struct usb_driver *driver,
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const struct snd_usb_audio_quirk *quirk)
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static const struct audioformat ua_format = {
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.formats = SNDRV_PCM_FMTBIT_S24_3LE,
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.fmt_type = UAC_FORMAT_TYPE_I,
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.rates = SNDRV_PCM_RATE_CONTINUOUS,
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struct usb_host_interface *alts;
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struct usb_interface_descriptor *altsd;
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struct audioformat *fp;
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/* both PCM and MIDI interfaces have 2 or more altsettings */
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if (iface->num_altsetting < 2)
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alts = &iface->altsetting[1];
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altsd = get_iface_desc(alts);
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if (altsd->bNumEndpoints == 2) {
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static const struct snd_usb_midi_endpoint_info ua700_ep = {
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.out_cables = 0x0003,
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static const struct snd_usb_audio_quirk ua700_quirk = {
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.type = QUIRK_MIDI_FIXED_ENDPOINT,
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static const struct snd_usb_midi_endpoint_info uaxx_ep = {
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.out_cables = 0x0001,
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static const struct snd_usb_audio_quirk uaxx_quirk = {
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.type = QUIRK_MIDI_FIXED_ENDPOINT,
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const struct snd_usb_audio_quirk *quirk =
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chip->usb_id == USB_ID(0x0582, 0x002b)
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? &ua700_quirk : &uaxx_quirk;
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return snd_usbmidi_create(chip->card, iface,
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&chip->midi_list, quirk);
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if (altsd->bNumEndpoints != 1)
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fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL);
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fp->iface = altsd->bInterfaceNumber;
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fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
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fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
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fp->datainterval = 0;
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fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
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switch (fp->maxpacksize) {
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fp->rate_max = fp->rate_min = 44100;
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fp->rate_max = fp->rate_min = 48000;
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fp->rate_max = fp->rate_min = 96000;
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snd_printk(KERN_ERR "unknown sample rate\n");
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stream = (fp->endpoint & USB_DIR_IN)
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? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
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err = snd_usb_add_audio_stream(chip, stream, fp);
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usb_set_interface(chip->dev, fp->iface, 0);
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* Create a standard mixer for the specified interface.
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static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
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struct usb_interface *iface,
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struct usb_driver *driver,
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const struct snd_usb_audio_quirk *quirk)
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if (quirk->ifnum < 0)
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return snd_usb_create_mixer(chip, quirk->ifnum, 0);
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* audio-interface quirks
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* returns zero if no standard audio/MIDI parsing is needed.
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* returns a positive value if standard audio/midi interfaces are parsed
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* returns a negative value at error.
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int snd_usb_create_quirk(struct snd_usb_audio *chip,
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struct usb_interface *iface,
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struct usb_driver *driver,
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const struct snd_usb_audio_quirk *quirk)
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typedef int (*quirk_func_t)(struct snd_usb_audio *,
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struct usb_interface *,
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const struct snd_usb_audio_quirk *);
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static const quirk_func_t quirk_funcs[] = {
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[QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
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[QUIRK_COMPOSITE] = create_composite_quirk,
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[QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
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[QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
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[QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
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[QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
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[QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
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[QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
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[QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
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[QUIRK_MIDI_CME] = create_any_midi_quirk,
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[QUIRK_MIDI_AKAI] = create_any_midi_quirk,
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[QUIRK_MIDI_FTDI] = create_any_midi_quirk,
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[QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
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[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
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[QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
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[QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
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[QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
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if (quirk->type < QUIRK_TYPE_COUNT) {
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return quirk_funcs[quirk->type](chip, iface, driver, quirk);
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snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
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#define EXTIGY_FIRMWARE_SIZE_OLD 794
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#define EXTIGY_FIRMWARE_SIZE_NEW 483
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static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
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struct usb_host_config *config = dev->actconfig;
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if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
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le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
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snd_printdd("sending Extigy boot sequence...\n");
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/* Send message to force it to reconnect with full interface. */
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err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
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0x10, 0x43, 0x0001, 0x000a, NULL, 0);
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if (err < 0) snd_printdd("error sending boot message: %d\n", err);
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err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
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&dev->descriptor, sizeof(dev->descriptor));
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config = dev->actconfig;
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if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err);
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err = usb_reset_configuration(dev);
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if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err);
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snd_printdd("extigy_boot: new boot length = %d\n",
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le16_to_cpu(get_cfg_desc(config)->wTotalLength));
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return -ENODEV; /* quit this anyway */
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static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
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snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
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snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
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static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
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if (dev->actconfig->desc.bConfigurationValue == 1) {
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snd_printk(KERN_INFO "usb-audio: "
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"Fast Track Pro switching to config #2\n");
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/* This function has to be available by the usb core module.
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* if it is not avialable the boot quirk has to be left out
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* and the configuration has to be set by udev or hotplug
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err = usb_driver_set_configuration(dev, 2);
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snd_printdd("error usb_driver_set_configuration: %d\n",
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snd_printk(KERN_INFO "usb-audio: Fast Track Pro config OK\n");
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* C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
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* documented in the device's data sheet.
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static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
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buf[1] = value & 0xff;
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buf[2] = (value >> 8) & 0xff;
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return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
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USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
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static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
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* Enable line-out driver mode, set headphone source to front
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* channels, enable stereo mic.
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return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
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* C-Media CM6206 is based on CM106 with two additional
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* registers that are not documented in the data sheet.
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* Values here are chosen based on sniffing USB traffic
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static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
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int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000};
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for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
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err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
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* This call will put the synth in "USB send" mode, i.e it will send MIDI
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* messages through USB (this is disabled at startup). The synth will
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* acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
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* sign on its LCD. Values here are chosen based on sniffing USB traffic
449
static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
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int err, actual_length;
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/* "midi send" enable */
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static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
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void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
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err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
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ARRAY_SIZE(seq), &actual_length, 1000);
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* Some sound cards from Native Instruments are in fact compliant to the USB
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* audio standard of version 2 and other approved USB standards, even though
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* they come up as vendor-specific device when first connected.
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* However, they can be told to come up with a new set of descriptors
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* upon their next enumeration, and the interfaces announced by the new
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* descriptors will then be handled by the kernel's class drivers. As the
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* product ID will also change, no further checks are required.
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static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
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int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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cpu_to_le16(1), 0, NULL, 0, 1000);
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usb_reset_device(dev);
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/* return -EAGAIN, so the creation of an audio interface for this
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* temporary device is aborted. The device will reconnect with a
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#define MAUDIO_SET 0x01 /* parse device_setup */
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#define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */
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#define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */
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#define MAUDIO_SET_96K 0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
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#define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */
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#define MAUDIO_SET_DI 0x10 /* enable Digital Input */
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#define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */
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#define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48KHz+Digital Input */
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#define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
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#define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48KHz+Digital Input */
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#define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
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static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
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int iface, int altno)
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/* Reset ALL ifaces to 0 altsetting.
515
* Call it for every possible altsetting of every interface.
517
usb_set_interface(chip->dev, iface, 0);
518
if (chip->setup & MAUDIO_SET) {
519
if (chip->setup & MAUDIO_SET_COMPATIBLE) {
520
if (iface != 1 && iface != 2)
521
return 1; /* skip all interfaces but 1 and 2 */
524
if (iface == 1 || iface == 2)
525
return 1; /* skip interfaces 1 and 2 */
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if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
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return 1; /* skip this altsetting */
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mask = chip->setup & MAUDIO_SET_MASK;
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if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
530
return 1; /* skip this altsetting */
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if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
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return 1; /* skip this altsetting */
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if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
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return 1; /* skip this altsetting */
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snd_printdd(KERN_INFO
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"using altsetting %d for interface %d config %d\n",
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altno, iface, chip->setup);
540
return 0; /* keep this altsetting */
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static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
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/* Reset ALL ifaces to 0 altsetting.
548
* Call it for every possible altsetting of every interface.
550
usb_set_interface(chip->dev, iface, 0);
552
if (chip->setup & MAUDIO_SET) {
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if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
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return 1; /* skip this altsetting */
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if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
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return 1; /* skip this altsetting */
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mask = chip->setup & MAUDIO_SET_MASK;
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if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
560
return 1; /* skip this altsetting */
561
if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
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return 1; /* skip this altsetting */
563
if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
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return 1; /* skip this altsetting */
565
if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
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return 1; /* skip this altsetting */
569
return 0; /* keep this altsetting */
573
static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
574
int iface, int altno)
576
/* Reset ALL ifaces to 0 altsetting.
577
* Call it for every possible altsetting of every interface.
579
usb_set_interface(chip->dev, iface, 0);
581
/* possible configuration where both inputs and only one output is
582
*used is not supported by the current setup
584
if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
585
if (chip->setup & MAUDIO_SET_96K) {
586
if (altno != 3 && altno != 6)
588
} else if (chip->setup & MAUDIO_SET_DI) {
590
return 1; /* no analog input */
591
if (altno != 2 && altno != 5)
592
return 1; /* enable only altsets 2 and 5 */
595
return 1; /* disable digialt input */
596
if (altno != 2 && altno != 5)
597
return 1; /* enalbe only altsets 2 and 5 */
600
/* keep only 16-Bit mode */
605
snd_printdd(KERN_INFO
606
"using altsetting %d for interface %d config %d\n",
607
altno, iface, chip->setup);
608
return 0; /* keep this altsetting */
611
int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
615
/* audiophile usb: skip altsets incompatible with device_setup */
616
if (chip->usb_id == USB_ID(0x0763, 0x2003))
617
return audiophile_skip_setting_quirk(chip, iface, altno);
618
/* quattro usb: skip altsets incompatible with device_setup */
619
if (chip->usb_id == USB_ID(0x0763, 0x2001))
620
return quattro_skip_setting_quirk(chip, iface, altno);
621
/* fasttrackpro usb: skip altsets incompatible with device_setup */
622
if (chip->usb_id == USB_ID(0x0763, 0x2012))
623
return fasttrackpro_skip_setting_quirk(chip, iface, altno);
628
int snd_usb_apply_boot_quirk(struct usb_device *dev,
629
struct usb_interface *intf,
630
const struct snd_usb_audio_quirk *quirk)
632
u32 id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
633
le16_to_cpu(dev->descriptor.idProduct));
636
case USB_ID(0x041e, 0x3000):
637
/* SB Extigy needs special boot-up sequence */
638
/* if more models come, this will go to the quirk list. */
639
return snd_usb_extigy_boot_quirk(dev, intf);
641
case USB_ID(0x041e, 0x3020):
642
/* SB Audigy 2 NX needs its own boot-up magic, too */
643
return snd_usb_audigy2nx_boot_quirk(dev);
645
case USB_ID(0x10f5, 0x0200):
646
/* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
647
return snd_usb_cm106_boot_quirk(dev);
649
case USB_ID(0x0d8c, 0x0102):
650
/* C-Media CM6206 / CM106-Like Sound Device */
651
case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
652
return snd_usb_cm6206_boot_quirk(dev);
654
case USB_ID(0x133e, 0x0815):
655
/* Access Music VirusTI Desktop */
656
return snd_usb_accessmusic_boot_quirk(dev);
658
case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
659
case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
660
case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
661
return snd_usb_nativeinstruments_boot_quirk(dev);
662
case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
663
return snd_usb_fasttrackpro_boot_quirk(dev);
670
* check if the device uses big-endian samples
672
int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
674
/* it depends on altsetting wether the device is big-endian or not */
675
switch (chip->usb_id) {
676
case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
677
if (fp->altsetting == 2 || fp->altsetting == 3 ||
678
fp->altsetting == 5 || fp->altsetting == 6)
681
case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
682
if (chip->setup == 0x00 ||
683
fp->altsetting == 1 || fp->altsetting == 2 ||
687
case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
688
if (fp->altsetting == 2 || fp->altsetting == 3 ||
689
fp->altsetting == 5 || fp->altsetting == 6)
697
* For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
702
EMU_QUIRK_SR_44100HZ = 0,
703
EMU_QUIRK_SR_48000HZ,
704
EMU_QUIRK_SR_88200HZ,
705
EMU_QUIRK_SR_96000HZ,
706
EMU_QUIRK_SR_176400HZ,
707
EMU_QUIRK_SR_192000HZ
710
static void set_format_emu_quirk(struct snd_usb_substream *subs,
711
struct audioformat *fmt)
713
unsigned char emu_samplerate_id = 0;
715
/* When capture is active
716
* sample rate shouldn't be changed
717
* by playback substream
719
if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
720
if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
724
switch (fmt->rate_min) {
726
emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
729
emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
732
emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
735
emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
738
emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
741
emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
744
snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
747
void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
748
struct audioformat *fmt)
750
switch (subs->stream->chip->usb_id) {
751
case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
752
case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
753
case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
754
case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
755
set_format_emu_quirk(subs, fmt);