diff options
Diffstat (limited to 'sound/usb/quirks.c')
| -rw-r--r-- | sound/usb/quirks.c | 1920 |
1 files changed, 1920 insertions, 0 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c new file mode 100644 index 000000000..752422147 --- /dev/null +++ b/sound/usb/quirks.c @@ -0,0 +1,1920 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/midi.h> +#include <linux/bits.h> + +#include <sound/control.h> +#include <sound/core.h> +#include <sound/info.h> +#include <sound/pcm.h> + +#include "usbaudio.h" +#include "card.h" +#include "mixer.h" +#include "mixer_quirks.h" +#include "midi.h" +#include "quirks.h" +#include "helper.h" +#include "endpoint.h" +#include "pcm.h" +#include "clock.h" +#include "stream.h" + +/* + * handle the quirks for the contained interfaces + */ +static int create_composite_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk_comp) +{ + int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber; + const struct snd_usb_audio_quirk *quirk; + int err; + + for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) { + iface = usb_ifnum_to_if(chip->dev, quirk->ifnum); + if (!iface) + continue; + if (quirk->ifnum != probed_ifnum && + usb_interface_claimed(iface)) + continue; + err = snd_usb_create_quirk(chip, iface, driver, quirk); + if (err < 0) + return err; + } + + for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) { + iface = usb_ifnum_to_if(chip->dev, quirk->ifnum); + if (!iface) + continue; + if (quirk->ifnum != probed_ifnum && + !usb_interface_claimed(iface)) { + err = usb_driver_claim_interface(driver, iface, + USB_AUDIO_IFACE_UNUSED); + if (err < 0) + return err; + } + } + + return 0; +} + +static int ignore_interface_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + return 0; +} + + +/* + * Allow alignment on audio sub-slot (channel samples) rather than + * on audio slots (audio frames) + */ +static int create_align_transfer_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + chip->txfr_quirk = 1; + return 1; /* Continue with creating streams and mixer */ +} + +static int create_any_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *intf, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk); +} + +/* + * create a stream for an interface with proper descriptors + */ +static int create_standard_audio_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + int err; + + if (chip->usb_id == USB_ID(0x1686, 0x00dd)) /* Zoom R16/24 */ + chip->tx_length_quirk = 1; + + alts = &iface->altsetting[0]; + altsd = get_iface_desc(alts); + err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber); + if (err < 0) { + usb_audio_err(chip, "cannot setup if %d: error %d\n", + altsd->bInterfaceNumber, err); + return err; + } + /* reset the current interface */ + usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0); + return 0; +} + +/* + * create a stream for an endpoint/altsetting without proper descriptors + */ +static int create_fixed_stream_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + struct audioformat *fp; + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + int stream, err; + unsigned *rate_table = NULL; + + fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL); + if (!fp) + return -ENOMEM; + + INIT_LIST_HEAD(&fp->list); + if (fp->nr_rates > MAX_NR_RATES) { + kfree(fp); + return -EINVAL; + } + if (fp->nr_rates > 0) { + rate_table = kmemdup(fp->rate_table, + sizeof(int) * fp->nr_rates, GFP_KERNEL); + if (!rate_table) { + kfree(fp); + return -ENOMEM; + } + fp->rate_table = rate_table; + } + + stream = (fp->endpoint & USB_DIR_IN) + ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; + err = snd_usb_add_audio_stream(chip, stream, fp); + if (err < 0) + goto error; + if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber || + fp->altset_idx >= iface->num_altsetting) { + err = -EINVAL; + goto error; + } + alts = &iface->altsetting[fp->altset_idx]; + altsd = get_iface_desc(alts); + if (altsd->bNumEndpoints < 1) { + err = -EINVAL; + goto error; + } + + fp->protocol = altsd->bInterfaceProtocol; + + if (fp->datainterval == 0) + fp->datainterval = snd_usb_parse_datainterval(chip, alts); + if (fp->maxpacksize == 0) + fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); + usb_set_interface(chip->dev, fp->iface, 0); + snd_usb_init_pitch(chip, fp->iface, alts, fp); + snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max); + return 0; + + error: + list_del(&fp->list); /* unlink for avoiding double-free */ + kfree(fp); + kfree(rate_table); + return err; +} + +static int create_auto_pcm_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver) +{ + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + struct usb_endpoint_descriptor *epd; + struct uac1_as_header_descriptor *ashd; + struct uac_format_type_i_discrete_descriptor *fmtd; + + /* + * Most Roland/Yamaha audio streaming interfaces have more or less + * standard descriptors, but older devices might lack descriptors, and + * future ones might change, so ensure that we fail silently if the + * interface doesn't look exactly right. + */ + + /* must have a non-zero altsetting for streaming */ + if (iface->num_altsetting < 2) + return -ENODEV; + alts = &iface->altsetting[1]; + altsd = get_iface_desc(alts); + + /* must have an isochronous endpoint for streaming */ + if (altsd->bNumEndpoints < 1) + return -ENODEV; + epd = get_endpoint(alts, 0); + if (!usb_endpoint_xfer_isoc(epd)) + return -ENODEV; + + /* must have format descriptors */ + ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, + UAC_AS_GENERAL); + fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, + UAC_FORMAT_TYPE); + if (!ashd || ashd->bLength < 7 || + !fmtd || fmtd->bLength < 8) + return -ENODEV; + + return create_standard_audio_quirk(chip, iface, driver, NULL); +} + +static int create_yamaha_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + struct usb_host_interface *alts) +{ + static const struct snd_usb_audio_quirk yamaha_midi_quirk = { + .type = QUIRK_MIDI_YAMAHA + }; + struct usb_midi_in_jack_descriptor *injd; + struct usb_midi_out_jack_descriptor *outjd; + + /* must have some valid jack descriptors */ + injd = snd_usb_find_csint_desc(alts->extra, alts->extralen, + NULL, USB_MS_MIDI_IN_JACK); + outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen, + NULL, USB_MS_MIDI_OUT_JACK); + if (!injd && !outjd) + return -ENODEV; + if ((injd && !snd_usb_validate_midi_desc(injd)) || + (outjd && !snd_usb_validate_midi_desc(outjd))) + return -ENODEV; + if (injd && (injd->bLength < 5 || + (injd->bJackType != USB_MS_EMBEDDED && + injd->bJackType != USB_MS_EXTERNAL))) + return -ENODEV; + if (outjd && (outjd->bLength < 6 || + (outjd->bJackType != USB_MS_EMBEDDED && + outjd->bJackType != USB_MS_EXTERNAL))) + return -ENODEV; + return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk); +} + +static int create_roland_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + struct usb_host_interface *alts) +{ + static const struct snd_usb_audio_quirk roland_midi_quirk = { + .type = QUIRK_MIDI_ROLAND + }; + u8 *roland_desc = NULL; + + /* might have a vendor-specific descriptor <06 24 F1 02 ...> */ + for (;;) { + roland_desc = snd_usb_find_csint_desc(alts->extra, + alts->extralen, + roland_desc, 0xf1); + if (!roland_desc) + return -ENODEV; + if (roland_desc[0] < 6 || roland_desc[3] != 2) + continue; + return create_any_midi_quirk(chip, iface, driver, + &roland_midi_quirk); + } +} + +static int create_std_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + struct usb_host_interface *alts) +{ + struct usb_ms_header_descriptor *mshd; + struct usb_ms_endpoint_descriptor *msepd; + + /* must have the MIDIStreaming interface header descriptor*/ + mshd = (struct usb_ms_header_descriptor *)alts->extra; + if (alts->extralen < 7 || + mshd->bLength < 7 || + mshd->bDescriptorType != USB_DT_CS_INTERFACE || + mshd->bDescriptorSubtype != USB_MS_HEADER) + return -ENODEV; + /* must have the MIDIStreaming endpoint descriptor*/ + msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra; + if (alts->endpoint[0].extralen < 4 || + msepd->bLength < 4 || + msepd->bDescriptorType != USB_DT_CS_ENDPOINT || + msepd->bDescriptorSubtype != UAC_MS_GENERAL || + msepd->bNumEmbMIDIJack < 1 || + msepd->bNumEmbMIDIJack > 16) + return -ENODEV; + + return create_any_midi_quirk(chip, iface, driver, NULL); +} + +static int create_auto_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver) +{ + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + struct usb_endpoint_descriptor *epd; + int err; + + alts = &iface->altsetting[0]; + altsd = get_iface_desc(alts); + + /* must have at least one bulk/interrupt endpoint for streaming */ + if (altsd->bNumEndpoints < 1) + return -ENODEV; + epd = get_endpoint(alts, 0); + if (!usb_endpoint_xfer_bulk(epd) && + !usb_endpoint_xfer_int(epd)) + return -ENODEV; + + switch (USB_ID_VENDOR(chip->usb_id)) { + case 0x0499: /* Yamaha */ + err = create_yamaha_midi_quirk(chip, iface, driver, alts); + if (err != -ENODEV) + return err; + break; + case 0x0582: /* Roland */ + err = create_roland_midi_quirk(chip, iface, driver, alts); + if (err != -ENODEV) + return err; + break; + } + + return create_std_midi_quirk(chip, iface, driver, alts); +} + +static int create_autodetect_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver) +{ + int err; + + err = create_auto_pcm_quirk(chip, iface, driver); + if (err == -ENODEV) + err = create_auto_midi_quirk(chip, iface, driver); + return err; +} + +static int create_autodetect_quirks(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber; + int ifcount, ifnum, err; + + err = create_autodetect_quirk(chip, iface, driver); + if (err < 0) + return err; + + /* + * ALSA PCM playback/capture devices cannot be registered in two steps, + * so we have to claim the other corresponding interface here. + */ + ifcount = chip->dev->actconfig->desc.bNumInterfaces; + for (ifnum = 0; ifnum < ifcount; ifnum++) { + if (ifnum == probed_ifnum || quirk->ifnum >= 0) + continue; + iface = usb_ifnum_to_if(chip->dev, ifnum); + if (!iface || + usb_interface_claimed(iface) || + get_iface_desc(iface->altsetting)->bInterfaceClass != + USB_CLASS_VENDOR_SPEC) + continue; + + err = create_autodetect_quirk(chip, iface, driver); + if (err >= 0) { + err = usb_driver_claim_interface(driver, iface, + USB_AUDIO_IFACE_UNUSED); + if (err < 0) + return err; + } + } + + return 0; +} + +/* + * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface. + * The only way to detect the sample rate is by looking at wMaxPacketSize. + */ +static int create_uaxx_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + static const struct audioformat ua_format = { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 2, + .fmt_type = UAC_FORMAT_TYPE_I, + .altsetting = 1, + .altset_idx = 1, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + }; + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + struct audioformat *fp; + int stream, err; + + /* both PCM and MIDI interfaces have 2 or more altsettings */ + if (iface->num_altsetting < 2) + return -ENXIO; + alts = &iface->altsetting[1]; + altsd = get_iface_desc(alts); + + if (altsd->bNumEndpoints == 2) { + static const struct snd_usb_midi_endpoint_info ua700_ep = { + .out_cables = 0x0003, + .in_cables = 0x0003 + }; + static const struct snd_usb_audio_quirk ua700_quirk = { + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &ua700_ep + }; + static const struct snd_usb_midi_endpoint_info uaxx_ep = { + .out_cables = 0x0001, + .in_cables = 0x0001 + }; + static const struct snd_usb_audio_quirk uaxx_quirk = { + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &uaxx_ep + }; + const struct snd_usb_audio_quirk *quirk = + chip->usb_id == USB_ID(0x0582, 0x002b) + ? &ua700_quirk : &uaxx_quirk; + return __snd_usbmidi_create(chip->card, iface, + &chip->midi_list, quirk, + chip->usb_id); + } + + if (altsd->bNumEndpoints != 1) + return -ENXIO; + + fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL); + if (!fp) + return -ENOMEM; + + fp->iface = altsd->bInterfaceNumber; + fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; + fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; + fp->datainterval = 0; + fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); + INIT_LIST_HEAD(&fp->list); + + switch (fp->maxpacksize) { + case 0x120: + fp->rate_max = fp->rate_min = 44100; + break; + case 0x138: + case 0x140: + fp->rate_max = fp->rate_min = 48000; + break; + case 0x258: + case 0x260: + fp->rate_max = fp->rate_min = 96000; + break; + default: + usb_audio_err(chip, "unknown sample rate\n"); + kfree(fp); + return -ENXIO; + } + + stream = (fp->endpoint & USB_DIR_IN) + ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; + err = snd_usb_add_audio_stream(chip, stream, fp); + if (err < 0) { + list_del(&fp->list); /* unlink for avoiding double-free */ + kfree(fp); + return err; + } + usb_set_interface(chip->dev, fp->iface, 0); + return 0; +} + +/* + * Create a standard mixer for the specified interface. + */ +static int create_standard_mixer_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + if (quirk->ifnum < 0) + return 0; + + return snd_usb_create_mixer(chip, quirk->ifnum, 0); +} + + +static int setup_fmt_after_resume_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + chip->setup_fmt_after_resume_quirk = 1; + return 1; /* Continue with creating streams and mixer */ +} + +static int setup_disable_autosuspend(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + usb_disable_autosuspend(interface_to_usbdev(iface)); + return 1; /* Continue with creating streams and mixer */ +} + +/* + * audio-interface quirks + * + * returns zero if no standard audio/MIDI parsing is needed. + * returns a positive value if standard audio/midi interfaces are parsed + * after this. + * returns a negative value at error. + */ +int snd_usb_create_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + typedef int (*quirk_func_t)(struct snd_usb_audio *, + struct usb_interface *, + struct usb_driver *, + const struct snd_usb_audio_quirk *); + static const quirk_func_t quirk_funcs[] = { + [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk, + [QUIRK_COMPOSITE] = create_composite_quirk, + [QUIRK_AUTODETECT] = create_autodetect_quirks, + [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk, + [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk, + [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk, + [QUIRK_MIDI_ROLAND] = create_any_midi_quirk, + [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk, + [QUIRK_MIDI_NOVATION] = create_any_midi_quirk, + [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk, + [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk, + [QUIRK_MIDI_CME] = create_any_midi_quirk, + [QUIRK_MIDI_AKAI] = create_any_midi_quirk, + [QUIRK_MIDI_FTDI] = create_any_midi_quirk, + [QUIRK_MIDI_CH345] = create_any_midi_quirk, + [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk, + [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk, + [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk, + [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk, + [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk, + [QUIRK_SETUP_FMT_AFTER_RESUME] = setup_fmt_after_resume_quirk, + [QUIRK_SETUP_DISABLE_AUTOSUSPEND] = setup_disable_autosuspend, + }; + + if (quirk->type < QUIRK_TYPE_COUNT) { + return quirk_funcs[quirk->type](chip, iface, driver, quirk); + } else { + usb_audio_err(chip, "invalid quirk type %d\n", quirk->type); + return -ENXIO; + } +} + +/* + * boot quirks + */ + +#define EXTIGY_FIRMWARE_SIZE_OLD 794 +#define EXTIGY_FIRMWARE_SIZE_NEW 483 + +static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf) +{ + struct usb_host_config *config = dev->actconfig; + int err; + + if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD || + le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) { + dev_dbg(&dev->dev, "sending Extigy boot sequence...\n"); + /* Send message to force it to reconnect with full interface. */ + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0), + 0x10, 0x43, 0x0001, 0x000a, NULL, 0); + if (err < 0) + dev_dbg(&dev->dev, "error sending boot message: %d\n", err); + err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, + &dev->descriptor, sizeof(dev->descriptor)); + config = dev->actconfig; + if (err < 0) + dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err); + err = usb_reset_configuration(dev); + if (err < 0) + dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err); + dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n", + le16_to_cpu(get_cfg_desc(config)->wTotalLength)); + return -ENODEV; /* quit this anyway */ + } + return 0; +} + +static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev) +{ + u8 buf = 1; + + snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, + 0, 0, &buf, 1); + if (buf == 0) { + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + 1, 2000, NULL, 0); + return -ENODEV; + } + return 0; +} + +static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev) +{ + int err; + + if (dev->actconfig->desc.bConfigurationValue == 1) { + dev_info(&dev->dev, + "Fast Track Pro switching to config #2\n"); + /* This function has to be available by the usb core module. + * if it is not avialable the boot quirk has to be left out + * and the configuration has to be set by udev or hotplug + * rules + */ + err = usb_driver_set_configuration(dev, 2); + if (err < 0) + dev_dbg(&dev->dev, + "error usb_driver_set_configuration: %d\n", + err); + /* Always return an error, so that we stop creating a device + that will just be destroyed and recreated with a new + configuration */ + return -ENODEV; + } else + dev_info(&dev->dev, "Fast Track Pro config OK\n"); + + return 0; +} + +/* + * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely + * documented in the device's data sheet. + */ +static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value) +{ + u8 buf[4]; + buf[0] = 0x20; + buf[1] = value & 0xff; + buf[2] = (value >> 8) & 0xff; + buf[3] = reg; + return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT, + 0, 0, &buf, 4); +} + +static int snd_usb_cm106_boot_quirk(struct usb_device *dev) +{ + /* + * Enable line-out driver mode, set headphone source to front + * channels, enable stereo mic. + */ + return snd_usb_cm106_write_int_reg(dev, 2, 0x8004); +} + +/* + * CM6206 registers from the CM6206 datasheet rev 2.1 + */ +#define CM6206_REG0_DMA_MASTER BIT(15) +#define CM6206_REG0_SPDIFO_RATE_48K (2 << 12) +#define CM6206_REG0_SPDIFO_RATE_96K (7 << 12) +/* Bit 4 thru 11 is the S/PDIF category code */ +#define CM6206_REG0_SPDIFO_CAT_CODE_GENERAL (0 << 4) +#define CM6206_REG0_SPDIFO_EMPHASIS_CD BIT(3) +#define CM6206_REG0_SPDIFO_COPYRIGHT_NA BIT(2) +#define CM6206_REG0_SPDIFO_NON_AUDIO BIT(1) +#define CM6206_REG0_SPDIFO_PRO_FORMAT BIT(0) + +#define CM6206_REG1_TEST_SEL_CLK BIT(14) +#define CM6206_REG1_PLLBIN_EN BIT(13) +#define CM6206_REG1_SOFT_MUTE_EN BIT(12) +#define CM6206_REG1_GPIO4_OUT BIT(11) +#define CM6206_REG1_GPIO4_OE BIT(10) +#define CM6206_REG1_GPIO3_OUT BIT(9) +#define CM6206_REG1_GPIO3_OE BIT(8) +#define CM6206_REG1_GPIO2_OUT BIT(7) +#define CM6206_REG1_GPIO2_OE BIT(6) +#define CM6206_REG1_GPIO1_OUT BIT(5) +#define CM6206_REG1_GPIO1_OE BIT(4) +#define CM6206_REG1_SPDIFO_INVALID BIT(3) +#define CM6206_REG1_SPDIF_LOOP_EN BIT(2) +#define CM6206_REG1_SPDIFO_DIS BIT(1) +#define CM6206_REG1_SPDIFI_MIX BIT(0) + +#define CM6206_REG2_DRIVER_ON BIT(15) +#define CM6206_REG2_HEADP_SEL_SIDE_CHANNELS (0 << 13) +#define CM6206_REG2_HEADP_SEL_SURROUND_CHANNELS (1 << 13) +#define CM6206_REG2_HEADP_SEL_CENTER_SUBW (2 << 13) +#define CM6206_REG2_HEADP_SEL_FRONT_CHANNELS (3 << 13) +#define CM6206_REG2_MUTE_HEADPHONE_RIGHT BIT(12) +#define CM6206_REG2_MUTE_HEADPHONE_LEFT BIT(11) +#define CM6206_REG2_MUTE_REAR_SURROUND_RIGHT BIT(10) +#define CM6206_REG2_MUTE_REAR_SURROUND_LEFT BIT(9) +#define CM6206_REG2_MUTE_SIDE_SURROUND_RIGHT BIT(8) +#define CM6206_REG2_MUTE_SIDE_SURROUND_LEFT BIT(7) +#define CM6206_REG2_MUTE_SUBWOOFER BIT(6) +#define CM6206_REG2_MUTE_CENTER BIT(5) +#define CM6206_REG2_MUTE_RIGHT_FRONT BIT(3) +#define CM6206_REG2_MUTE_LEFT_FRONT BIT(3) +#define CM6206_REG2_EN_BTL BIT(2) +#define CM6206_REG2_MCUCLKSEL_1_5_MHZ (0) +#define CM6206_REG2_MCUCLKSEL_3_MHZ (1) +#define CM6206_REG2_MCUCLKSEL_6_MHZ (2) +#define CM6206_REG2_MCUCLKSEL_12_MHZ (3) + +/* Bit 11..13 sets the sensitivity to FLY tuner volume control VP/VD signal */ +#define CM6206_REG3_FLYSPEED_DEFAULT (2 << 11) +#define CM6206_REG3_VRAP25EN BIT(10) +#define CM6206_REG3_MSEL1 BIT(9) +#define CM6206_REG3_SPDIFI_RATE_44_1K BIT(0 << 7) +#define CM6206_REG3_SPDIFI_RATE_48K BIT(2 << 7) +#define CM6206_REG3_SPDIFI_RATE_32K BIT(3 << 7) +#define CM6206_REG3_PINSEL BIT(6) +#define CM6206_REG3_FOE BIT(5) +#define CM6206_REG3_ROE BIT(4) +#define CM6206_REG3_CBOE BIT(3) +#define CM6206_REG3_LOSE BIT(2) +#define CM6206_REG3_HPOE BIT(1) +#define CM6206_REG3_SPDIFI_CANREC BIT(0) + +#define CM6206_REG5_DA_RSTN BIT(13) +#define CM6206_REG5_AD_RSTN BIT(12) +#define CM6206_REG5_SPDIFO_AD2SPDO BIT(12) +#define CM6206_REG5_SPDIFO_SEL_FRONT (0 << 9) +#define CM6206_REG5_SPDIFO_SEL_SIDE_SUR (1 << 9) +#define CM6206_REG5_SPDIFO_SEL_CEN_LFE (2 << 9) +#define CM6206_REG5_SPDIFO_SEL_REAR_SUR (3 << 9) +#define CM6206_REG5_CODECM BIT(8) +#define CM6206_REG5_EN_HPF BIT(7) +#define CM6206_REG5_T_SEL_DSDA4 BIT(6) +#define CM6206_REG5_T_SEL_DSDA3 BIT(5) +#define CM6206_REG5_T_SEL_DSDA2 BIT(4) +#define CM6206_REG5_T_SEL_DSDA1 BIT(3) +#define CM6206_REG5_T_SEL_DSDAD_NORMAL 0 +#define CM6206_REG5_T_SEL_DSDAD_FRONT 4 +#define CM6206_REG5_T_SEL_DSDAD_S_SURROUND 5 +#define CM6206_REG5_T_SEL_DSDAD_CEN_LFE 6 +#define CM6206_REG5_T_SEL_DSDAD_R_SURROUND 7 + +static int snd_usb_cm6206_boot_quirk(struct usb_device *dev) +{ + int err = 0, reg; + int val[] = { + /* + * Values here are chosen based on sniffing USB traffic + * under Windows. + * + * REG0: DAC is master, sample rate 48kHz, no copyright + */ + CM6206_REG0_SPDIFO_RATE_48K | + CM6206_REG0_SPDIFO_COPYRIGHT_NA, + /* + * REG1: PLL binary search enable, soft mute enable. + */ + CM6206_REG1_PLLBIN_EN | + CM6206_REG1_SOFT_MUTE_EN, + /* + * REG2: enable output drivers, + * select front channels to the headphone output, + * then mute the headphone channels, run the MCU + * at 1.5 MHz. + */ + CM6206_REG2_DRIVER_ON | + CM6206_REG2_HEADP_SEL_FRONT_CHANNELS | + CM6206_REG2_MUTE_HEADPHONE_RIGHT | + CM6206_REG2_MUTE_HEADPHONE_LEFT, + /* + * REG3: default flyspeed, set 2.5V mic bias + * enable all line out ports and enable SPDIF + */ + CM6206_REG3_FLYSPEED_DEFAULT | + CM6206_REG3_VRAP25EN | + CM6206_REG3_FOE | + CM6206_REG3_ROE | + CM6206_REG3_CBOE | + CM6206_REG3_LOSE | + CM6206_REG3_HPOE | + CM6206_REG3_SPDIFI_CANREC, + /* REG4 is just a bunch of GPIO lines */ + 0x0000, + /* REG5: de-assert AD/DA reset signals */ + CM6206_REG5_DA_RSTN | + CM6206_REG5_AD_RSTN }; + + for (reg = 0; reg < ARRAY_SIZE(val); reg++) { + err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]); + if (err < 0) + return err; + } + + return err; +} + +/* quirk for Plantronics GameCom 780 with CM6302 chip */ +static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev) +{ + /* set the initial volume and don't change; other values are either + * too loud or silent due to firmware bug (bko#65251) + */ + u8 buf[2] = { 0x74, 0xe3 }; + return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + UAC_FU_VOLUME << 8, 9 << 8, buf, 2); +} + +/* + * Novation Twitch DJ controller + * Focusrite Novation Saffire 6 USB audio card + */ +static int snd_usb_novation_boot_quirk(struct usb_device *dev) +{ + /* preemptively set up the device because otherwise the + * raw MIDI endpoints are not active */ + usb_set_interface(dev, 0, 1); + return 0; +} + +/* + * This call will put the synth in "USB send" mode, i.e it will send MIDI + * messages through USB (this is disabled at startup). The synth will + * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB + * sign on its LCD. Values here are chosen based on sniffing USB traffic + * under Windows. + */ +static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev) +{ + int err, actual_length; + /* "midi send" enable */ + static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 }; + void *buf; + + if (usb_pipe_type_check(dev, usb_sndintpipe(dev, 0x05))) + return -EINVAL; + buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL); + if (!buf) + return -ENOMEM; + err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf, + ARRAY_SIZE(seq), &actual_length, 1000); + kfree(buf); + if (err < 0) + return err; + + return 0; +} + +/* + * Some sound cards from Native Instruments are in fact compliant to the USB + * audio standard of version 2 and other approved USB standards, even though + * they come up as vendor-specific device when first connected. + * + * However, they can be told to come up with a new set of descriptors + * upon their next enumeration, and the interfaces announced by the new + * descriptors will then be handled by the kernel's class drivers. As the + * product ID will also change, no further checks are required. + */ + +static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev) +{ + int ret; + + ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 1, 0, NULL, 0, 1000); + + if (ret < 0) + return ret; + + usb_reset_device(dev); + + /* return -EAGAIN, so the creation of an audio interface for this + * temporary device is aborted. The device will reconnect with a + * new product ID */ + return -EAGAIN; +} + +static void mbox2_setup_48_24_magic(struct usb_device *dev) +{ + u8 srate[3]; + u8 temp[12]; + + /* Choose 48000Hz permanently */ + srate[0] = 0x80; + srate[1] = 0xbb; + srate[2] = 0x00; + + /* Send the magic! */ + snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003); + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003); + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003); + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003); + return; +} + +/* Digidesign Mbox 2 needs to load firmware onboard + * and driver must wait a few seconds for initialisation. + */ + +#define MBOX2_FIRMWARE_SIZE 646 +#define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */ +#define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */ + +static int snd_usb_mbox2_boot_quirk(struct usb_device *dev) +{ + struct usb_host_config *config = dev->actconfig; + int err; + u8 bootresponse[0x12]; + int fwsize; + int count; + + fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength); + + if (fwsize != MBOX2_FIRMWARE_SIZE) { + dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize); + return -ENODEV; + } + + dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n"); + + count = 0; + bootresponse[0] = MBOX2_BOOT_LOADING; + while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) { + msleep(500); /* 0.5 second delay */ + snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + /* Control magic - load onboard firmware */ + 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012); + if (bootresponse[0] == MBOX2_BOOT_READY) + break; + dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n"); + count++; + } + + if (bootresponse[0] != MBOX2_BOOT_READY) { + dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]); + return -ENODEV; + } + + dev_dbg(&dev->dev, "device initialised!\n"); + + err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, + &dev->descriptor, sizeof(dev->descriptor)); + config = dev->actconfig; + if (err < 0) + dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err); + + err = usb_reset_configuration(dev); + if (err < 0) + dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err); + dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n", + le16_to_cpu(get_cfg_desc(config)->wTotalLength)); + + mbox2_setup_48_24_magic(dev); + + dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz"); + + return 0; /* Successful boot */ +} + +static int snd_usb_axefx3_boot_quirk(struct usb_device *dev) +{ + int err; + + dev_dbg(&dev->dev, "Waiting for Axe-Fx III to boot up...\n"); + + /* If the Axe-Fx III has not fully booted, it will timeout when trying + * to enable the audio streaming interface. A more generous timeout is + * used here to detect when the Axe-Fx III has finished booting as the + * set interface message will be acked once it has + */ + err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE, + 1, 1, NULL, 0, 120000); + if (err < 0) { + dev_err(&dev->dev, + "failed waiting for Axe-Fx III to boot: %d\n", err); + return err; + } + + dev_dbg(&dev->dev, "Axe-Fx III is now ready\n"); + + err = usb_set_interface(dev, 1, 0); + if (err < 0) + dev_dbg(&dev->dev, + "error stopping Axe-Fx III interface: %d\n", err); + + return 0; +} + + +#define MICROBOOK_BUF_SIZE 128 + +static int snd_usb_motu_microbookii_communicate(struct usb_device *dev, u8 *buf, + int buf_size, int *length) +{ + int err, actual_length; + + if (usb_pipe_type_check(dev, usb_sndintpipe(dev, 0x01))) + return -EINVAL; + err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x01), buf, *length, + &actual_length, 1000); + if (err < 0) + return err; + + print_hex_dump(KERN_DEBUG, "MicroBookII snd: ", DUMP_PREFIX_NONE, 16, 1, + buf, actual_length, false); + + memset(buf, 0, buf_size); + + if (usb_pipe_type_check(dev, usb_rcvintpipe(dev, 0x82))) + return -EINVAL; + err = usb_interrupt_msg(dev, usb_rcvintpipe(dev, 0x82), buf, buf_size, + &actual_length, 1000); + if (err < 0) + return err; + + print_hex_dump(KERN_DEBUG, "MicroBookII rcv: ", DUMP_PREFIX_NONE, 16, 1, + buf, actual_length, false); + + *length = actual_length; + return 0; +} + +static int snd_usb_motu_microbookii_boot_quirk(struct usb_device *dev) +{ + int err, actual_length, poll_attempts = 0; + static const u8 set_samplerate_seq[] = { 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x0b, 0x14, + 0x00, 0x00, 0x00, 0x01 }; + static const u8 poll_ready_seq[] = { 0x00, 0x04, 0x00, 0x00, + 0x00, 0x00, 0x0b, 0x18 }; + u8 *buf = kzalloc(MICROBOOK_BUF_SIZE, GFP_KERNEL); + + if (!buf) + return -ENOMEM; + + dev_info(&dev->dev, "Waiting for MOTU Microbook II to boot up...\n"); + + /* First we tell the device which sample rate to use. */ + memcpy(buf, set_samplerate_seq, sizeof(set_samplerate_seq)); + actual_length = sizeof(set_samplerate_seq); + err = snd_usb_motu_microbookii_communicate(dev, buf, MICROBOOK_BUF_SIZE, + &actual_length); + + if (err < 0) { + dev_err(&dev->dev, + "failed setting the sample rate for Motu MicroBook II: %d\n", + err); + goto free_buf; + } + + /* Then we poll every 100 ms until the device informs of its readiness. */ + while (true) { + if (++poll_attempts > 100) { + dev_err(&dev->dev, + "failed booting Motu MicroBook II: timeout\n"); + err = -ENODEV; + goto free_buf; + } + + memset(buf, 0, MICROBOOK_BUF_SIZE); + memcpy(buf, poll_ready_seq, sizeof(poll_ready_seq)); + + actual_length = sizeof(poll_ready_seq); + err = snd_usb_motu_microbookii_communicate( + dev, buf, MICROBOOK_BUF_SIZE, &actual_length); + if (err < 0) { + dev_err(&dev->dev, + "failed booting Motu MicroBook II: communication error %d\n", + err); + goto free_buf; + } + + /* the device signals its readiness through a message of the + * form + * XX 06 00 00 00 00 0b 18 00 00 00 01 + * If the device is not yet ready to accept audio data, the + * last byte of that sequence is 00. + */ + if (actual_length == 12 && buf[actual_length - 1] == 1) + break; + + msleep(100); + } + + dev_info(&dev->dev, "MOTU MicroBook II ready\n"); + +free_buf: + kfree(buf); + return err; +} + +static int snd_usb_motu_m_series_boot_quirk(struct usb_device *dev) +{ + int ret; + + ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + 1, USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x0, 0, NULL, 0, 1000); + + if (ret < 0) + return ret; + + msleep(2000); + + ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + 1, USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x20, 0, NULL, 0, 1000); + + if (ret < 0) + return ret; + + return 0; +} + +/* + * Setup quirks + */ +#define MAUDIO_SET 0x01 /* parse device_setup */ +#define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */ +#define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */ +#define MAUDIO_SET_96K 0x04 /* 48-96kHz rate if set, 8-48kHz otherwise */ +#define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */ +#define MAUDIO_SET_DI 0x10 /* enable Digital Input */ +#define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */ +#define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48kHz+Digital Input */ +#define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48kHz+No Digital Input */ +#define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48kHz+Digital Input */ +#define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48kHz+No Digital Input */ + +static int quattro_skip_setting_quirk(struct snd_usb_audio *chip, + int iface, int altno) +{ + /* Reset ALL ifaces to 0 altsetting. + * Call it for every possible altsetting of every interface. + */ + usb_set_interface(chip->dev, iface, 0); + if (chip->setup & MAUDIO_SET) { + if (chip->setup & MAUDIO_SET_COMPATIBLE) { + if (iface != 1 && iface != 2) + return 1; /* skip all interfaces but 1 and 2 */ + } else { + unsigned int mask; + if (iface == 1 || iface == 2) + return 1; /* skip interfaces 1 and 2 */ + if ((chip->setup & MAUDIO_SET_96K) && altno != 1) + return 1; /* skip this altsetting */ + mask = chip->setup & MAUDIO_SET_MASK; + if (mask == MAUDIO_SET_24B_48K_DI && altno != 2) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4) + return 1; /* skip this altsetting */ + } + } + usb_audio_dbg(chip, + "using altsetting %d for interface %d config %d\n", + altno, iface, chip->setup); + return 0; /* keep this altsetting */ +} + +static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip, + int iface, + int altno) +{ + /* Reset ALL ifaces to 0 altsetting. + * Call it for every possible altsetting of every interface. + */ + usb_set_interface(chip->dev, iface, 0); + + if (chip->setup & MAUDIO_SET) { + unsigned int mask; + if ((chip->setup & MAUDIO_SET_DTS) && altno != 6) + return 1; /* skip this altsetting */ + if ((chip->setup & MAUDIO_SET_96K) && altno != 1) + return 1; /* skip this altsetting */ + mask = chip->setup & MAUDIO_SET_MASK; + if (mask == MAUDIO_SET_24B_48K_DI && altno != 2) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_16B_48K_DI && altno != 4) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5) + return 1; /* skip this altsetting */ + } + + return 0; /* keep this altsetting */ +} + +static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip, + int iface, int altno) +{ + /* Reset ALL ifaces to 0 altsetting. + * Call it for every possible altsetting of every interface. + */ + usb_set_interface(chip->dev, iface, 0); + + /* possible configuration where both inputs and only one output is + *used is not supported by the current setup + */ + if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) { + if (chip->setup & MAUDIO_SET_96K) { + if (altno != 3 && altno != 6) + return 1; + } else if (chip->setup & MAUDIO_SET_DI) { + if (iface == 4) + return 1; /* no analog input */ + if (altno != 2 && altno != 5) + return 1; /* enable only altsets 2 and 5 */ + } else { + if (iface == 5) + return 1; /* disable digialt input */ + if (altno != 2 && altno != 5) + return 1; /* enalbe only altsets 2 and 5 */ + } + } else { + /* keep only 16-Bit mode */ + if (altno != 1) + return 1; + } + + usb_audio_dbg(chip, + "using altsetting %d for interface %d config %d\n", + altno, iface, chip->setup); + return 0; /* keep this altsetting */ +} + +static int s1810c_skip_setting_quirk(struct snd_usb_audio *chip, + int iface, int altno) +{ + /* + * Altno settings: + * + * Playback (Interface 1): + * 1: 6 Analog + 2 S/PDIF + * 2: 6 Analog + 2 S/PDIF + * 3: 6 Analog + * + * Capture (Interface 2): + * 1: 8 Analog + 2 S/PDIF + 8 ADAT + * 2: 8 Analog + 2 S/PDIF + 4 ADAT + * 3: 8 Analog + */ + + /* + * I'll leave 2 as the default one and + * use device_setup to switch to the + * other two. + */ + if ((chip->setup == 0 || chip->setup > 2) && altno != 2) + return 1; + else if (chip->setup == 1 && altno != 1) + return 1; + else if (chip->setup == 2 && altno != 3) + return 1; + + return 0; +} + +int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip, + int iface, + int altno) +{ + /* audiophile usb: skip altsets incompatible with device_setup */ + if (chip->usb_id == USB_ID(0x0763, 0x2003)) + return audiophile_skip_setting_quirk(chip, iface, altno); + /* quattro usb: skip altsets incompatible with device_setup */ + if (chip->usb_id == USB_ID(0x0763, 0x2001)) + return quattro_skip_setting_quirk(chip, iface, altno); + /* fasttrackpro usb: skip altsets incompatible with device_setup */ + if (chip->usb_id == USB_ID(0x0763, 0x2012)) + return fasttrackpro_skip_setting_quirk(chip, iface, altno); + /* presonus studio 1810c: skip altsets incompatible with device_setup */ + if (chip->usb_id == USB_ID(0x194f, 0x010c)) + return s1810c_skip_setting_quirk(chip, iface, altno); + + + return 0; +} + +int snd_usb_apply_boot_quirk(struct usb_device *dev, + struct usb_interface *intf, + const struct snd_usb_audio_quirk *quirk, + unsigned int id) +{ + switch (id) { + case USB_ID(0x041e, 0x3000): + /* SB Extigy needs special boot-up sequence */ + /* if more models come, this will go to the quirk list. */ + return snd_usb_extigy_boot_quirk(dev, intf); + + case USB_ID(0x041e, 0x3020): + /* SB Audigy 2 NX needs its own boot-up magic, too */ + return snd_usb_audigy2nx_boot_quirk(dev); + + case USB_ID(0x10f5, 0x0200): + /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */ + return snd_usb_cm106_boot_quirk(dev); + + case USB_ID(0x0d8c, 0x0102): + /* C-Media CM6206 / CM106-Like Sound Device */ + case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */ + return snd_usb_cm6206_boot_quirk(dev); + + case USB_ID(0x0dba, 0x3000): + /* Digidesign Mbox 2 */ + return snd_usb_mbox2_boot_quirk(dev); + + case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */ + case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */ + return snd_usb_novation_boot_quirk(dev); + + case USB_ID(0x133e, 0x0815): + /* Access Music VirusTI Desktop */ + return snd_usb_accessmusic_boot_quirk(dev); + + case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */ + case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */ + case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */ + return snd_usb_nativeinstruments_boot_quirk(dev); + case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */ + return snd_usb_fasttrackpro_boot_quirk(dev); + case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */ + return snd_usb_gamecon780_boot_quirk(dev); + case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx 3 */ + return snd_usb_axefx3_boot_quirk(dev); + case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook II */ + /* + * For some reason interface 3 with vendor-spec class is + * detected on MicroBook IIc. + */ + if (get_iface_desc(intf->altsetting)->bInterfaceClass == + USB_CLASS_VENDOR_SPEC && + get_iface_desc(intf->altsetting)->bInterfaceNumber < 3) + return snd_usb_motu_microbookii_boot_quirk(dev); + break; + } + + return 0; +} + +int snd_usb_apply_boot_quirk_once(struct usb_device *dev, + struct usb_interface *intf, + const struct snd_usb_audio_quirk *quirk, + unsigned int id) +{ + switch (id) { + case USB_ID(0x07fd, 0x0008): /* MOTU M Series */ + return snd_usb_motu_m_series_boot_quirk(dev); + } + + return 0; +} + +/* + * check if the device uses big-endian samples + */ +int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp) +{ + /* it depends on altsetting whether the device is big-endian or not */ + switch (chip->usb_id) { + case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */ + if (fp->altsetting == 2 || fp->altsetting == 3 || + fp->altsetting == 5 || fp->altsetting == 6) + return 1; + break; + case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ + if (chip->setup == 0x00 || + fp->altsetting == 1 || fp->altsetting == 2 || + fp->altsetting == 3) + return 1; + break; + case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */ + if (fp->altsetting == 2 || fp->altsetting == 3 || + fp->altsetting == 5 || fp->altsetting == 6) + return 1; + break; + } + return 0; +} + +/* + * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device, + * not for interface. + */ + +enum { + EMU_QUIRK_SR_44100HZ = 0, + EMU_QUIRK_SR_48000HZ, + EMU_QUIRK_SR_88200HZ, + EMU_QUIRK_SR_96000HZ, + EMU_QUIRK_SR_176400HZ, + EMU_QUIRK_SR_192000HZ +}; + +static void set_format_emu_quirk(struct snd_usb_substream *subs, + struct audioformat *fmt) +{ + unsigned char emu_samplerate_id = 0; + + /* When capture is active + * sample rate shouldn't be changed + * by playback substream + */ + if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { + if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1) + return; + } + + switch (fmt->rate_min) { + case 48000: + emu_samplerate_id = EMU_QUIRK_SR_48000HZ; + break; + case 88200: + emu_samplerate_id = EMU_QUIRK_SR_88200HZ; + break; + case 96000: + emu_samplerate_id = EMU_QUIRK_SR_96000HZ; + break; + case 176400: + emu_samplerate_id = EMU_QUIRK_SR_176400HZ; + break; + case 192000: + emu_samplerate_id = EMU_QUIRK_SR_192000HZ; + break; + default: + emu_samplerate_id = EMU_QUIRK_SR_44100HZ; + break; + } + snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id); + subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0; +} + + +/* + * Pioneer DJ DJM-900NXS2 + * Device needs to know the sample rate each time substream is started + */ +static int pioneer_djm_set_format_quirk(struct snd_usb_substream *subs) +{ + + /* Convert sample rate value to little endian */ + u8 sr[3]; + + sr[0] = subs->cur_rate & 0xff; + sr[1] = (subs->cur_rate >> 8) & 0xff; + sr[2] = (subs->cur_rate >> 16) & 0xff; + + /* Configure device */ + usb_set_interface(subs->dev, 0, 1); + snd_usb_ctl_msg(subs->stream->chip->dev, + usb_rcvctrlpipe(subs->stream->chip->dev, 0), + 0x01, 0x22, 0x0100, 0x0082, &sr, 0x0003); + + return 0; +} + +void snd_usb_set_format_quirk(struct snd_usb_substream *subs, + struct audioformat *fmt) +{ + switch (subs->stream->chip->usb_id) { + case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ + case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */ + case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */ + case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */ + set_format_emu_quirk(subs, fmt); + break; + case USB_ID(0x2b73, 0x000a): /* Pioneer DJ DJM-900NXS2 */ + case USB_ID(0x2b73, 0x0017): /* Pioneer DJ DJM-250MK2 */ + pioneer_djm_set_format_quirk(subs); + break; + case USB_ID(0x534d, 0x0021): /* MacroSilicon MS2100/MS2106 */ + case USB_ID(0x534d, 0x2109): /* MacroSilicon MS2109 */ + subs->stream_offset_adj = 2; + break; + } +} + +bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip) +{ + /* devices which do not support reading the sample rate. */ + switch (chip->usb_id) { + case USB_ID(0x041e, 0x4080): /* Creative Live Cam VF0610 */ + case USB_ID(0x04d8, 0xfeea): /* Benchmark DAC1 Pre */ + case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */ + case USB_ID(0x05a3, 0x9420): /* ELP HD USB Camera */ + case USB_ID(0x05a7, 0x1020): /* Bose Companion 5 */ + case USB_ID(0x074d, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */ + case USB_ID(0x1395, 0x740a): /* Sennheiser DECT */ + case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */ + case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */ + case USB_ID(0x2912, 0x30c8): /* Audioengine D1 */ + case USB_ID(0x413c, 0xa506): /* Dell AE515 sound bar */ + case USB_ID(0x046d, 0x084c): /* Logitech ConferenceCam Connect */ + return true; + } + + /* devices of these vendors don't support reading rate, either */ + switch (USB_ID_VENDOR(chip->usb_id)) { + case 0x045e: /* MS Lifecam */ + case 0x047f: /* Plantronics */ + case 0x1de7: /* Phoenix Audio */ + return true; + } + + return false; +} + +/* ITF-USB DSD based DACs need a vendor cmd to switch + * between PCM and native DSD mode + */ +static bool is_itf_usb_dsd_dac(unsigned int id) +{ + switch (id) { + case USB_ID(0x154e, 0x1002): /* Denon DCD-1500RE */ + case USB_ID(0x154e, 0x1003): /* Denon DA-300USB */ + case USB_ID(0x154e, 0x3005): /* Marantz HD-DAC1 */ + case USB_ID(0x154e, 0x3006): /* Marantz SA-14S1 */ + case USB_ID(0x1852, 0x5065): /* Luxman DA-06 */ + case USB_ID(0x0644, 0x8043): /* TEAC UD-501/UD-501V2/UD-503/NT-503 */ + case USB_ID(0x0644, 0x8044): /* Esoteric D-05X */ + case USB_ID(0x0644, 0x804a): /* TEAC UD-301 */ + return true; + } + return false; +} + +int snd_usb_select_mode_quirk(struct snd_usb_substream *subs, + struct audioformat *fmt) +{ + struct usb_device *dev = subs->dev; + int err; + + if (is_itf_usb_dsd_dac(subs->stream->chip->usb_id)) { + /* First switch to alt set 0, otherwise the mode switch cmd + * will not be accepted by the DAC + */ + err = usb_set_interface(dev, fmt->iface, 0); + if (err < 0) + return err; + + msleep(20); /* Delay needed after setting the interface */ + + /* Vendor mode switch cmd is required. */ + if (fmt->formats & SNDRV_PCM_FMTBIT_DSD_U32_BE) { + /* DSD mode (DSD_U32) requested */ + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0, + USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE, + 1, 1, NULL, 0); + if (err < 0) + return err; + + } else { + /* PCM or DOP mode (S32) requested */ + /* PCM mode (S16) requested */ + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0, + USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE, + 0, 1, NULL, 0); + if (err < 0) + return err; + + } + msleep(20); + } + return 0; +} + +void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep) +{ + /* + * "Playback Design" products send bogus feedback data at the start + * of the stream. Ignore them. + */ + if (USB_ID_VENDOR(ep->chip->usb_id) == 0x23ba && + ep->type == SND_USB_ENDPOINT_TYPE_SYNC) + ep->skip_packets = 4; + + /* + * M-Audio Fast Track C400/C600 - when packets are not skipped, real + * world latency varies by approx. +/- 50 frames (at 96kHz) each time + * the stream is (re)started. When skipping packets 16 at endpoint + * start up, the real world latency is stable within +/- 1 frame (also + * across power cycles). + */ + if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) || + ep->chip->usb_id == USB_ID(0x0763, 0x2031)) && + ep->type == SND_USB_ENDPOINT_TYPE_DATA) + ep->skip_packets = 16; + + /* Work around devices that report unreasonable feedback data */ + if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) || /* TEAC UD-H01 */ + ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */ + ep->syncmaxsize == 4) + ep->tenor_fb_quirk = 1; +} + +void snd_usb_set_interface_quirk(struct usb_device *dev) +{ + struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev); + + if (!chip) + return; + /* + * "Playback Design" products need a 50ms delay after setting the + * USB interface. + */ + switch (USB_ID_VENDOR(chip->usb_id)) { + case 0x23ba: /* Playback Design */ + case 0x0644: /* TEAC Corp. */ + msleep(50); + break; + } +} + +/* quirk applied after snd_usb_ctl_msg(); not applied during boot quirks */ +void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, + __u8 request, __u8 requesttype, __u16 value, + __u16 index, void *data, __u16 size) +{ + struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev); + + if (!chip) + return; + /* + * "Playback Design" products need a 20ms delay after each + * class compliant request + */ + if (USB_ID_VENDOR(chip->usb_id) == 0x23ba && + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + msleep(20); + + /* + * "TEAC Corp." products need a 20ms delay after each + * class compliant request + */ + if (USB_ID_VENDOR(chip->usb_id) == 0x0644 && + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + msleep(20); + + /* ITF-USB DSD based DACs functionality need a delay + * after each class compliant request + */ + if (is_itf_usb_dsd_dac(chip->usb_id) + && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + msleep(20); + + /* + * Plantronics headsets (C320, C320-M, etc) need a delay to avoid + * random microhpone failures. + */ + if (USB_ID_VENDOR(chip->usb_id) == 0x047f && + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + msleep(20); + + /* Zoom R16/24, many Logitech(at least H650e/H570e/BCC950), + * Jabra 550a, Kingston HyperX needs a tiny delay here, + * otherwise requests like get/set frequency return + * as failed despite actually succeeding. + */ + if ((chip->usb_id == USB_ID(0x1686, 0x00dd) || + USB_ID_VENDOR(chip->usb_id) == 0x046d || /* Logitech */ + chip->usb_id == USB_ID(0x0b0e, 0x0349) || + chip->usb_id == USB_ID(0x0951, 0x16ad)) && + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + usleep_range(1000, 2000); + + /* + * Samsung USBC Headset (AKG) need a tiny delay after each + * class compliant request. (Model number: AAM625R or AAM627R) + */ + if (chip->usb_id == USB_ID(0x04e8, 0xa051) && + (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) + usleep_range(5000, 6000); +} + +/* + * snd_usb_interface_dsd_format_quirks() is called from format.c to + * augment the PCM format bit-field for DSD types. The UAC standards + * don't have a designated bit field to denote DSD-capable interfaces, + * hence all hardware that is known to support this format has to be + * listed here. + */ +u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip, + struct audioformat *fp, + unsigned int sample_bytes) +{ + struct usb_interface *iface; + + /* Playback Designs */ + if (USB_ID_VENDOR(chip->usb_id) == 0x23ba && + USB_ID_PRODUCT(chip->usb_id) < 0x0110) { + switch (fp->altsetting) { + case 1: + fp->dsd_dop = true; + return SNDRV_PCM_FMTBIT_DSD_U16_LE; + case 2: + fp->dsd_bitrev = true; + return SNDRV_PCM_FMTBIT_DSD_U8; + case 3: + fp->dsd_bitrev = true; + return SNDRV_PCM_FMTBIT_DSD_U16_LE; + } + } + + /* XMOS based USB DACs */ + switch (chip->usb_id) { + case USB_ID(0x1511, 0x0037): /* AURALiC VEGA */ + case USB_ID(0x21ed, 0xd75a): /* Accuphase DAC-60 option card */ + case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */ + case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */ + if (fp->altsetting == 2) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + break; + + case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */ + case USB_ID(0x10cb, 0x0103): /* The Bit Opus #3; with fp->dsd_raw */ + case USB_ID(0x16d0, 0x06b2): /* NuPrime DAC-10 */ + case USB_ID(0x16d0, 0x09dd): /* Encore mDSD */ + case USB_ID(0x16d0, 0x0733): /* Furutech ADL Stratos */ + case USB_ID(0x16d0, 0x09db): /* NuPrime Audio DAC-9 */ + case USB_ID(0x1db5, 0x0003): /* Bryston BDA3 */ + case USB_ID(0x22e1, 0xca01): /* HDTA Serenade DSD */ + case USB_ID(0x249c, 0x9326): /* M2Tech Young MkIII */ + case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */ + case USB_ID(0x2622, 0x0041): /* Audiolab M-DAC+ */ + case USB_ID(0x27f7, 0x3002): /* W4S DAC-2v2SE */ + case USB_ID(0x29a2, 0x0086): /* Mutec MC3+ USB */ + case USB_ID(0x6b42, 0x0042): /* MSB Technology */ + if (fp->altsetting == 3) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + break; + + /* Amanero Combo384 USB based DACs with native DSD support */ + case USB_ID(0x16d0, 0x071a): /* Amanero - Combo384 */ + case USB_ID(0x2ab6, 0x0004): /* T+A DAC8DSD-V2.0, MP1000E-V2.0, MP2000R-V2.0, MP2500R-V2.0, MP3100HV-V2.0 */ + case USB_ID(0x2ab6, 0x0005): /* T+A USB HD Audio 1 */ + case USB_ID(0x2ab6, 0x0006): /* T+A USB HD Audio 2 */ + if (fp->altsetting == 2) { + switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) { + case 0x199: + return SNDRV_PCM_FMTBIT_DSD_U32_LE; + case 0x19b: + case 0x203: + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + default: + break; + } + } + break; + case USB_ID(0x16d0, 0x0a23): + if (fp->altsetting == 2) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + break; + + default: + break; + } + + /* ITF-USB DSD based DACs */ + if (is_itf_usb_dsd_dac(chip->usb_id)) { + iface = usb_ifnum_to_if(chip->dev, fp->iface); + + /* Altsetting 2 support native DSD if the num of altsets is + * three (0-2), + * Altsetting 3 support native DSD if the num of altsets is + * four (0-3). + */ + if (fp->altsetting == iface->num_altsetting - 1) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + } + + /* Mostly generic method to detect many DSD-capable implementations - + * from XMOS/Thesycon + */ + switch (USB_ID_VENDOR(chip->usb_id)) { + case 0x152a: /* Thesycon devices */ + case 0x20b1: /* XMOS based devices */ + case 0x22d9: /* Oppo */ + case 0x23ba: /* Playback Designs */ + case 0x25ce: /* Mytek devices */ + case 0x278b: /* Rotel? */ + case 0x292b: /* Gustard/Ess based devices */ + case 0x2972: /* FiiO devices */ + case 0x2ab6: /* T+A devices */ + case 0x3353: /* Khadas devices */ + case 0x3842: /* EVGA */ + case 0xc502: /* HiBy devices */ + if (fp->dsd_raw) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + break; + default: + break; + + } + + return 0; +} + +void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip, + struct audioformat *fp, + int stream) +{ + switch (chip->usb_id) { + case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */ + /* Optoplay sets the sample rate attribute although + * it seems not supporting it in fact. + */ + fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE; + break; + case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */ + case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ + /* doesn't set the sample rate attribute, but supports it */ + fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE; + break; + case USB_ID(0x0763, 0x2001): /* M-Audio Quattro USB */ + case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */ + case USB_ID(0x047f, 0x0ca1): /* plantronics headset */ + case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is + an older model 77d:223) */ + /* + * plantronics headset and Griffin iMic have set adaptive-in + * although it's really not... + */ + fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE; + if (stream == SNDRV_PCM_STREAM_PLAYBACK) + fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE; + else + fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC; + break; + case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook IIc */ + /* + * MaxPacketsOnly attribute is erroneously set in endpoint + * descriptors. As a result this card produces noise with + * all sample rates other than 96 kHz. + */ + fp->attributes &= ~UAC_EP_CS_ATTR_FILL_MAX; + break; + } +} + +/* + * registration quirk: + * the registration is skipped if a device matches with the given ID, + * unless the interface reaches to the defined one. This is for delaying + * the registration until the last known interface, so that the card and + * devices appear at the same time. + */ + +struct registration_quirk { + unsigned int usb_id; /* composed via USB_ID() */ + unsigned int interface; /* the interface to trigger register */ +}; + +#define REG_QUIRK_ENTRY(vendor, product, iface) \ + { .usb_id = USB_ID(vendor, product), .interface = (iface) } + +static const struct registration_quirk registration_quirks[] = { + REG_QUIRK_ENTRY(0x0951, 0x16d8, 2), /* Kingston HyperX AMP */ + REG_QUIRK_ENTRY(0x0951, 0x16ed, 2), /* Kingston HyperX Cloud Alpha S */ + REG_QUIRK_ENTRY(0x0951, 0x16ea, 2), /* Kingston HyperX Cloud Flight S */ + REG_QUIRK_ENTRY(0x0ecb, 0x1f46, 2), /* JBL Quantum 600 */ + REG_QUIRK_ENTRY(0x0ecb, 0x1f47, 2), /* JBL Quantum 800 */ + REG_QUIRK_ENTRY(0x0ecb, 0x1f4c, 2), /* JBL Quantum 400 */ + REG_QUIRK_ENTRY(0x0ecb, 0x2039, 2), /* JBL Quantum 400 */ + REG_QUIRK_ENTRY(0x0ecb, 0x203c, 2), /* JBL Quantum 600 */ + REG_QUIRK_ENTRY(0x0ecb, 0x203e, 2), /* JBL Quantum 800 */ + { 0 } /* terminator */ +}; + +/* return true if skipping registration */ +bool snd_usb_registration_quirk(struct snd_usb_audio *chip, int iface) +{ + const struct registration_quirk *q; + + for (q = registration_quirks; q->usb_id; q++) + if (chip->usb_id == q->usb_id) + return iface < q->interface; + + /* Register as normal */ + return false; +} |