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quirks.c
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quirks.c
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// 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 the audio stream and the corresponding endpoints from the fixed
* audioformat object; this is used for quirks with the fixed EPs
*/
static int add_audio_stream_from_fixed_fmt(struct snd_usb_audio *chip,
struct audioformat *fp)
{
int stream, err;
stream = (fp->endpoint & USB_DIR_IN) ?
SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
snd_usb_audioformat_set_sync_ep(chip, fp);
err = snd_usb_add_audio_stream(chip, stream, fp);
if (err < 0)
return err;
err = snd_usb_add_endpoint(chip, fp->endpoint,
SND_USB_ENDPOINT_TYPE_DATA);
if (err < 0)
return err;
if (fp->sync_ep) {
err = snd_usb_add_endpoint(chip, fp->sync_ep,
fp->implicit_fb ?
SND_USB_ENDPOINT_TYPE_DATA :
SND_USB_ENDPOINT_TYPE_SYNC);
if (err < 0)
return err;
}
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;
unsigned *rate_table = NULL;
int err;
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;
}
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 <= fp->ep_idx) {
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, fp->ep_idx)->wMaxPacketSize);
if (!fp->fmt_type)
fp->fmt_type = UAC_FORMAT_TYPE_I;
err = add_audio_stream_from_fixed_fmt(chip, fp);
if (err < 0)
goto error;
usb_set_interface(chip->dev, fp->iface, 0);
snd_usb_init_pitch(chip, fp);
snd_usb_init_sample_rate(chip, 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 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;
}
err = add_audio_stream_from_fixed_fmt(chip, 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_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_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");