sound/usb/quirks.c

   1 /*
   2  *   This program is free software; you can redistribute it and/or modify
   3  *   it under the terms of the GNU General Public License as published by
   4  *   the Free Software Foundation; either version 2 of the License, or
   5  *   (at your option) any later version.
   6  *
   7  *   This program is distributed in the hope that it will be useful,
   8  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *   GNU General Public License for more details.
  11  *
  12  *   You should have received a copy of the GNU General Public License
  13  *   along with this program; if not, write to the Free Software
  14  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  15  */
  16
  17 #include <linux/init.h>
  18 #include <linux/slab.h>
  19 #include <linux/usb.h>
  20 #include <linux/usb/audio.h>
  21
  22 #include <sound/control.h>
  23 #include <sound/core.h>
  24 #include <sound/info.h>
  25 #include <sound/pcm.h>
  26
  27 #include "usbaudio.h"
  28 #include "card.h"
  29 #include "mixer.h"
  30 #include "mixer_quirks.h"
  31 #include "midi.h"
  32 #include "quirks.h"
  33 #include "helper.h"
  34 #include "endpoint.h"
  35 #include "pcm.h"
  36 #include "clock.h"
  37
  38 /*
  39  * handle the quirks for the contained interfaces
  40  */
  41 static int create_composite_quirk(struct snd_usb_audio *chip,
  42                                   struct usb_interface *iface,
  43                                   struct usb_driver *driver,
  44                                   const struct snd_usb_audio_quirk *quirk)
  45 {
  46         int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
  47         int err;
  48
  49         for (quirk = quirk->data; quirk->ifnum >= 0; ++quirk) {
  50                 iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
  51                 if (!iface)
  52                         continue;
  53                 if (quirk->ifnum != probed_ifnum &&
  54                     usb_interface_claimed(iface))
  55                         continue;
  56                 err = snd_usb_create_quirk(chip, iface, driver, quirk);
  57                 if (err < 0)
  58                         return err;
  59                 if (quirk->ifnum != probed_ifnum)
  60                         usb_driver_claim_interface(driver, iface, (void *)-1L);
  61         }
  62         return 0;
  63 }
  64
  65 static int ignore_interface_quirk(struct snd_usb_audio *chip,
  66                                   struct usb_interface *iface,
  67                                   struct usb_driver *driver,
  68                                   const struct snd_usb_audio_quirk *quirk)
  69 {
  70         return 0;
  71 }
  72
  73
  74 /*
  75  * Allow alignment on audio sub-slot (channel samples) rather than
  76  * on audio slots (audio frames)
  77  */
  78 static int create_align_transfer_quirk(struct snd_usb_audio *chip,
  79                                        struct usb_interface *iface,
  80                                        struct usb_driver *driver,
  81                                        const struct snd_usb_audio_quirk *quirk)
  82 {
  83         chip->txfr_quirk = 1;
  84         return 1;       /* Continue with creating streams and mixer */
  85 }
  86
  87 static int create_any_midi_quirk(struct snd_usb_audio *chip,
  88                                  struct usb_interface *intf,
  89                                  struct usb_driver *driver,
  90                                  const struct snd_usb_audio_quirk *quirk)
  91 {
  92         return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk);
  93 }
  94
  95 /*
  96  * create a stream for an interface with proper descriptors
  97  */
  98 static int create_standard_audio_quirk(struct snd_usb_audio *chip,
  99                                        struct usb_interface *iface,
 100                                        struct usb_driver *driver,
 101                                        const struct snd_usb_audio_quirk *quirk)
 102 {
 103         struct usb_host_interface *alts;
 104         struct usb_interface_descriptor *altsd;
 105         int err;
 106
 107         alts = &iface->altsetting[0];
 108         altsd = get_iface_desc(alts);
 109         err = snd_usb_parse_audio_endpoints(chip, altsd->bInterfaceNumber);
 110         if (err < 0) {
 111                 snd_printk(KERN_ERR "cannot setup if %d: error %d\n",
 112                            altsd->bInterfaceNumber, err);
 113                 return err;
 114         }
 115         /* reset the current interface */
 116         usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
 117         return 0;
 118 }
 119
 120 /*
 121  * create a stream for an endpoint/altsetting without proper descriptors
 122  */
 123 static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
 124                                      struct usb_interface *iface,
 125                                      struct usb_driver *driver,
 126                                      const struct snd_usb_audio_quirk *quirk)
 127 {
 128         struct audioformat *fp;
 129         struct usb_host_interface *alts;
 130         int stream, err;
 131         unsigned *rate_table = NULL;
 132
 133         fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
 134         if (! fp) {
 135                 snd_printk(KERN_ERR "cannot memdup\n");
 136                 return -ENOMEM;
 137         }
 138         if (fp->nr_rates > 0) {
 139                 rate_table = kmalloc(sizeof(int) * fp->nr_rates, GFP_KERNEL);
 140                 if (!rate_table) {
 141                         kfree(fp);
 142                         return -ENOMEM;
 143                 }
 144                 memcpy(rate_table, fp->rate_table, sizeof(int) * fp->nr_rates);
 145                 fp->rate_table = rate_table;
 146         }
 147
 148         stream = (fp->endpoint & USB_DIR_IN)
 149                 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 150         err = snd_usb_add_audio_endpoint(chip, stream, fp);
 151         if (err < 0) {
 152                 kfree(fp);
 153                 kfree(rate_table);
 154                 return err;
 155         }
 156         if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
 157             fp->altset_idx >= iface->num_altsetting) {
 158                 kfree(fp);
 159                 kfree(rate_table);
 160                 return -EINVAL;
 161         }
 162         alts = &iface->altsetting[fp->altset_idx];
 163         fp->datainterval = snd_usb_parse_datainterval(chip, alts);
 164         fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
 165         usb_set_interface(chip->dev, fp->iface, 0);
 166         snd_usb_init_pitch(chip, fp->iface, alts, fp);
 167         snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
 168         return 0;
 169 }
 170
 171 /*
 172  * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
 173  * The only way to detect the sample rate is by looking at wMaxPacketSize.
 174  */
 175 static int create_uaxx_quirk(struct snd_usb_audio *chip,
 176                              struct usb_interface *iface,
 177                              struct usb_driver *driver,
 178                              const struct snd_usb_audio_quirk *quirk)
 179 {
 180         static const struct audioformat ua_format = {
 181                 .formats = SNDRV_PCM_FMTBIT_S24_3LE,
 182                 .channels = 2,
 183                 .fmt_type = UAC_FORMAT_TYPE_I,
 184                 .altsetting = 1,
 185                 .altset_idx = 1,
 186                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
 187         };
 188         struct usb_host_interface *alts;
 189         struct usb_interface_descriptor *altsd;
 190         struct audioformat *fp;
 191         int stream, err;
 192
 193         /* both PCM and MIDI interfaces have 2 or more altsettings */
 194         if (iface->num_altsetting < 2)
 195                 return -ENXIO;
 196         alts = &iface->altsetting[1];
 197         altsd = get_iface_desc(alts);
 198
 199         if (altsd->bNumEndpoints == 2) {
 200                 static const struct snd_usb_midi_endpoint_info ua700_ep = {
 201                         .out_cables = 0x0003,
 202                         .in_cables  = 0x0003
 203                 };
 204                 static const struct snd_usb_audio_quirk ua700_quirk = {
 205                         .type = QUIRK_MIDI_FIXED_ENDPOINT,
 206                         .data = &ua700_ep
 207                 };
 208                 static const struct snd_usb_midi_endpoint_info uaxx_ep = {
 209                         .out_cables = 0x0001,
 210                         .in_cables  = 0x0001
 211                 };
 212                 static const struct snd_usb_audio_quirk uaxx_quirk = {
 213                         .type = QUIRK_MIDI_FIXED_ENDPOINT,
 214                         .data = &uaxx_ep
 215                 };
 216                 const struct snd_usb_audio_quirk *quirk =
 217                         chip->usb_id == USB_ID(0x0582, 0x002b)
 218                         ? &ua700_quirk : &uaxx_quirk;
 219                 return snd_usbmidi_create(chip->card, iface,
 220                                           &chip->midi_list, quirk);
 221         }
 222
 223         if (altsd->bNumEndpoints != 1)
 224                 return -ENXIO;
 225
 226         fp = kmalloc(sizeof(*fp), GFP_KERNEL);
 227         if (!fp)
 228                 return -ENOMEM;
 229         memcpy(fp, &ua_format, sizeof(*fp));
 230
 231         fp->iface = altsd->bInterfaceNumber;
 232         fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
 233         fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
 234         fp->datainterval = 0;
 235         fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
 236
 237         switch (fp->maxpacksize) {
 238         case 0x120:
 239                 fp->rate_max = fp->rate_min = 44100;
 240                 break;
 241         case 0x138:
 242         case 0x140:
 243                 fp->rate_max = fp->rate_min = 48000;
 244                 break;
 245         case 0x258:
 246         case 0x260:
 247                 fp->rate_max = fp->rate_min = 96000;
 248                 break;
 249         default:
 250                 snd_printk(KERN_ERR "unknown sample rate\n");
 251                 kfree(fp);
 252                 return -ENXIO;
 253         }
 254
 255         stream = (fp->endpoint & USB_DIR_IN)
 256                 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 257         err = snd_usb_add_audio_endpoint(chip, stream, fp);
 258         if (err < 0) {
 259                 kfree(fp);
 260                 return err;
 261         }
 262         usb_set_interface(chip->dev, fp->iface, 0);
 263         return 0;
 264 }
 265
 266 /*
 267  * Create a standard mixer for the specified interface.
 268  */
 269 static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
 270                                        struct usb_interface *iface,
 271                                        struct usb_driver *driver,
 272                                        const struct snd_usb_audio_quirk *quirk)
 273 {
 274         if (quirk->ifnum < 0)
 275                 return 0;
 276
 277         return snd_usb_create_mixer(chip, quirk->ifnum, 0);
 278 }
 279
 280 /*
 281  * audio-interface quirks
 282  *
 283  * returns zero if no standard audio/MIDI parsing is needed.
 284  * returns a positive value if standard audio/midi interfaces are parsed
 285  * after this.
 286  * returns a negative value at error.
 287  */
 288 int snd_usb_create_quirk(struct snd_usb_audio *chip,
 289                          struct usb_interface *iface,
 290                          struct usb_driver *driver,
 291                          const struct snd_usb_audio_quirk *quirk)
 292 {
 293         typedef int (*quirk_func_t)(struct snd_usb_audio *,
 294                                     struct usb_interface *,
 295                                     struct usb_driver *,
 296                                     const struct snd_usb_audio_quirk *);
 297         static const quirk_func_t quirk_funcs[] = {
 298                 [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
 299                 [QUIRK_COMPOSITE] = create_composite_quirk,
 300                 [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
 301                 [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
 302                 [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
 303                 [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
 304                 [QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
 305                 [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
 306                 [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
 307                 [QUIRK_MIDI_CME] = create_any_midi_quirk,
 308                 [QUIRK_MIDI_AKAI] = create_any_midi_quirk,
 309                 [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
 310                 [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
 311                 [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
 312                 [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
 313                 [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
 314         };
 315
 316         if (quirk->type < QUIRK_TYPE_COUNT) {
 317                 return quirk_funcs[quirk->type](chip, iface, driver, quirk);
 318         } else {
 319                 snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
 320                 return -ENXIO;
 321         }
 322 }
 323
 324 /*
 325  * boot quirks
 326  */
 327
 328 #define EXTIGY_FIRMWARE_SIZE_OLD 794
 329 #define EXTIGY_FIRMWARE_SIZE_NEW 483
 330
 331 static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
 332 {
 333         struct usb_host_config *config = dev->actconfig;
 334         int err;
 335
 336         if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
 337             le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
 338                 snd_printdd("sending Extigy boot sequence...\n");
 339                 /* Send message to force it to reconnect with full interface. */
 340                 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
 341                                       0x10, 0x43, 0x0001, 0x000a, NULL, 0, 1000);
 342                 if (err < 0) snd_printdd("error sending boot message: %d\n", err);
 343                 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
 344                                 &dev->descriptor, sizeof(dev->descriptor));
 345                 config = dev->actconfig;
 346                 if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err);
 347                 err = usb_reset_configuration(dev);
 348                 if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err);
 349                 snd_printdd("extigy_boot: new boot length = %d\n",
 350                             le16_to_cpu(get_cfg_desc(config)->wTotalLength));
 351                 return -ENODEV; /* quit this anyway */
 352         }
 353         return 0;
 354 }
 355
 356 static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
 357 {
 358         u8 buf = 1;
 359
 360         snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
 361                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 362                         0, 0, &buf, 1, 1000);
 363         if (buf == 0) {
 364                 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
 365                                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 366                                 1, 2000, NULL, 0, 1000);
 367                 return -ENODEV;
 368         }
 369         return 0;
 370 }
 371
 372 static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
 373 {
 374         int err;
 375
 376         if (dev->actconfig->desc.bConfigurationValue == 1) {
 377                 snd_printk(KERN_INFO "usb-audio: "
 378                            "Fast Track Pro switching to config #2\n");
 379                 /* This function has to be available by the usb core module.
 380                  * if it is not avialable the boot quirk has to be left out
 381                  * and the configuration has to be set by udev or hotplug
 382                  * rules
 383                  */
 384                 err = usb_driver_set_configuration(dev, 2);
 385                 if (err < 0) {
 386                         snd_printdd("error usb_driver_set_configuration: %d\n",
 387                                     err);
 388                         return -ENODEV;
 389                 }
 390         } else
 391                 snd_printk(KERN_INFO "usb-audio: Fast Track Pro config OK\n");
 392
 393         return 0;
 394 }
 395
 396 /*
 397  * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
 398  * documented in the device's data sheet.
 399  */
 400 static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
 401 {
 402         u8 buf[4];
 403         buf[0] = 0x20;
 404         buf[1] = value & 0xff;
 405         buf[2] = (value >> 8) & 0xff;
 406         buf[3] = reg;
 407         return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
 408                                USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
 409                                0, 0, &buf, 4, 1000);
 410 }
 411
 412 static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
 413 {
 414         /*
 415          * Enable line-out driver mode, set headphone source to front
 416          * channels, enable stereo mic.
 417          */
 418         return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
 419 }
 420
 421 /*
 422  * C-Media CM6206 is based on CM106 with two additional
 423  * registers that are not documented in the data sheet.
 424  * Values here are chosen based on sniffing USB traffic
 425  * under Windows.
 426  */
 427 static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
 428 {
 429         int err  = 0, reg;
 430         int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000};
 431
 432         for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
 433                 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
 434                 if (err < 0)
 435                         return err;
 436         }
 437
 438         return err;
 439 }
 440
 441 /*
 442  * This call will put the synth in "USB send" mode, i.e it will send MIDI
 443  * messages through USB (this is disabled at startup). The synth will
 444  * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
 445  * sign on its LCD. Values here are chosen based on sniffing USB traffic
 446  * under Windows.
 447  */
 448 static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
 449 {
 450         int err, actual_length;
 451
 452         /* "midi send" enable */
 453         static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
 454
 455         void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
 456         if (!buf)
 457                 return -ENOMEM;
 458         err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
 459                         ARRAY_SIZE(seq), &actual_length, 1000);
 460         kfree(buf);
 461         if (err < 0)
 462                 return err;
 463
 464         return 0;
 465 }
 466
 467 /*
 468  * Some sound cards from Native Instruments are in fact compliant to the USB
 469  * audio standard of version 2 and other approved USB standards, even though
 470  * they come up as vendor-specific device when first connected.
 471  *
 472  * However, they can be told to come up with a new set of descriptors
 473  * upon their next enumeration, and the interfaces announced by the new
 474  * descriptors will then be handled by the kernel's class drivers. As the
 475  * product ID will also change, no further checks are required.
 476  */
 477
 478 static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
 479 {
 480         int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 481                                   0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 482                                   cpu_to_le16(1), 0, NULL, 0, 1000);
 483
 484         if (ret < 0)
 485                 return ret;
 486
 487         usb_reset_device(dev);
 488
 489         /* return -EAGAIN, so the creation of an audio interface for this
 490          * temporary device is aborted. The device will reconnect with a
 491          * new product ID */
 492         return -EAGAIN;
 493 }
 494
 495 /*
 496  * Setup quirks
 497  */
 498 #define MAUDIO_SET              0x01 /* parse device_setup */
 499 #define MAUDIO_SET_COMPATIBLE   0x80 /* use only "win-compatible" interfaces */
 500 #define MAUDIO_SET_DTS          0x02 /* enable DTS Digital Output */
 501 #define MAUDIO_SET_96K          0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
 502 #define MAUDIO_SET_24B          0x08 /* 24bits sample if set, 16bits otherwise */
 503 #define MAUDIO_SET_DI           0x10 /* enable Digital Input */
 504 #define MAUDIO_SET_MASK         0x1f /* bit mask for setup value */
 505 #define MAUDIO_SET_24B_48K_DI    0x19 /* 24bits+48KHz+Digital Input */
 506 #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
 507 #define MAUDIO_SET_16B_48K_DI    0x11 /* 16bits+48KHz+Digital Input */
 508 #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
 509
 510 static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
 511                                       int iface, int altno)
 512 {
 513         /* Reset ALL ifaces to 0 altsetting.
 514          * Call it for every possible altsetting of every interface.
 515          */
 516         usb_set_interface(chip->dev, iface, 0);
 517         if (chip->setup & MAUDIO_SET) {
 518                 if (chip->setup & MAUDIO_SET_COMPATIBLE) {
 519                         if (iface != 1 && iface != 2)
 520                                 return 1; /* skip all interfaces but 1 and 2 */
 521                 } else {
 522                         unsigned int mask;
 523                         if (iface == 1 || iface == 2)
 524                                 return 1; /* skip interfaces 1 and 2 */
 525                         if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
 526                                 return 1; /* skip this altsetting */
 527                         mask = chip->setup & MAUDIO_SET_MASK;
 528                         if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
 529                                 return 1; /* skip this altsetting */
 530                         if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
 531                                 return 1; /* skip this altsetting */
 532                         if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
 533                                 return 1; /* skip this altsetting */
 534                 }
 535         }
 536         snd_printdd(KERN_INFO
 537                     "using altsetting %d for interface %d config %d\n",
 538                     altno, iface, chip->setup);
 539         return 0; /* keep this altsetting */
 540 }
 541
 542 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
 543                                          int iface,
 544                                          int altno)
 545 {
 546         /* Reset ALL ifaces to 0 altsetting.
 547          * Call it for every possible altsetting of every interface.
 548          */
 549         usb_set_interface(chip->dev, iface, 0);
 550
 551         if (chip->setup & MAUDIO_SET) {
 552                 unsigned int mask;
 553                 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
 554                         return 1; /* skip this altsetting */
 555                 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
 556                         return 1; /* skip this altsetting */
 557                 mask = chip->setup & MAUDIO_SET_MASK;
 558                 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
 559                         return 1; /* skip this altsetting */
 560                 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
 561                         return 1; /* skip this altsetting */
 562                 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
 563                         return 1; /* skip this altsetting */
 564                 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
 565                         return 1; /* skip this altsetting */
 566         }
 567
 568         return 0; /* keep this altsetting */
 569 }
 570
 571
 572 static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
 573                                            int iface, int altno)
 574 {
 575         /* Reset ALL ifaces to 0 altsetting.
 576          * Call it for every possible altsetting of every interface.
 577          */
 578         usb_set_interface(chip->dev, iface, 0);
 579
 580         /* possible configuration where both inputs and only one output is
 581          *used is not supported by the current setup
 582          */
 583         if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
 584                 if (chip->setup & MAUDIO_SET_96K) {
 585                         if (altno != 3 && altno != 6)
 586                                 return 1;
 587                 } else if (chip->setup & MAUDIO_SET_DI) {
 588                         if (iface == 4)
 589                                 return 1; /* no analog input */
 590                         if (altno != 2 && altno != 5)
 591                                 return 1; /* enable only altsets 2 and 5 */
 592                 } else {
 593                         if (iface == 5)
 594                                 return 1; /* disable digialt input */
 595                         if (altno != 2 && altno != 5)
 596                                 return 1; /* enalbe only altsets 2 and 5 */
 597                 }
 598         } else {
 599                 /* keep only 16-Bit mode */
 600                 if (altno != 1)
 601                         return 1;
 602         }
 603
 604         snd_printdd(KERN_INFO
 605                     "using altsetting %d for interface %d config %d\n",
 606                     altno, iface, chip->setup);
 607         return 0; /* keep this altsetting */
 608 }
 609
 610 int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
 611                                   int iface,
 612                                   int altno)
 613 {
 614         /* audiophile usb: skip altsets incompatible with device_setup */
 615         if (chip->usb_id == USB_ID(0x0763, 0x2003))
 616                 return audiophile_skip_setting_quirk(chip, iface, altno);
 617         /* quattro usb: skip altsets incompatible with device_setup */
 618         if (chip->usb_id == USB_ID(0x0763, 0x2001))
 619                 return quattro_skip_setting_quirk(chip, iface, altno);
 620         /* fasttrackpro usb: skip altsets incompatible with device_setup */
 621         if (chip->usb_id == USB_ID(0x0763, 0x2012))
 622                 return fasttrackpro_skip_setting_quirk(chip, iface, altno);
 623
 624         return 0;
 625 }
 626
 627 int snd_usb_apply_boot_quirk(struct usb_device *dev,
 628                              struct usb_interface *intf,
 629                              const struct snd_usb_audio_quirk *quirk)
 630 {
 631         u32 id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
 632                         le16_to_cpu(dev->descriptor.idProduct));
 633
 634         switch (id) {
 635         case USB_ID(0x041e, 0x3000):
 636                 /* SB Extigy needs special boot-up sequence */
 637                 /* if more models come, this will go to the quirk list. */
 638                 return snd_usb_extigy_boot_quirk(dev, intf);
 639
 640         case USB_ID(0x041e, 0x3020):
 641                 /* SB Audigy 2 NX needs its own boot-up magic, too */
 642                 return snd_usb_audigy2nx_boot_quirk(dev);
 643
 644         case USB_ID(0x10f5, 0x0200):
 645                 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
 646                 return snd_usb_cm106_boot_quirk(dev);
 647
 648         case USB_ID(0x0d8c, 0x0102):
 649                 /* C-Media CM6206 / CM106-Like Sound Device */
 650         case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
 651                 return snd_usb_cm6206_boot_quirk(dev);
 652
 653         case USB_ID(0x133e, 0x0815):
 654                 /* Access Music VirusTI Desktop */
 655                 return snd_usb_accessmusic_boot_quirk(dev);
 656
 657         case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
 658         case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
 659         case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
 660                 return snd_usb_nativeinstruments_boot_quirk(dev);
 661         case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
 662                 return snd_usb_fasttrackpro_boot_quirk(dev);
 663         }
 664
 665         return 0;
 666 }
 667
 668 /*
 669  * check if the device uses big-endian samples
 670  */
 671 int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
 672 {
 673         /* it depends on altsetting wether the device is big-endian or not */
 674         switch (chip->usb_id) {
 675         case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
 676                 if (fp->altsetting == 2 || fp->altsetting == 3 ||
 677                         fp->altsetting == 5 || fp->altsetting == 6)
 678                         return 1;
 679                 break;
 680         case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
 681                 if (chip->setup == 0x00 ||
 682                         fp->altsetting == 1 || fp->altsetting == 2 ||
 683                         fp->altsetting == 3)
 684                         return 1;
 685                 break;
 686         case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
 687                 if (fp->altsetting == 2 || fp->altsetting == 3 ||
 688                         fp->altsetting == 5 || fp->altsetting == 6)
 689                         return 1;
 690                 break;
 691         }
 692         return 0;
 693 }
 694
 695 /*
 696  * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
 697  * not for interface.
 698  */
 699
 700 enum {
 701         EMU_QUIRK_SR_44100HZ = 0,
 702         EMU_QUIRK_SR_48000HZ,
 703         EMU_QUIRK_SR_88200HZ,
 704         EMU_QUIRK_SR_96000HZ,
 705         EMU_QUIRK_SR_176400HZ,
 706         EMU_QUIRK_SR_192000HZ
 707 };
 708
 709 static void set_format_emu_quirk(struct snd_usb_substream *subs,
 710                                  struct audioformat *fmt)
 711 {
 712         unsigned char emu_samplerate_id = 0;
 713
 714         /* When capture is active
 715          * sample rate shouldn't be changed
 716          * by playback substream
 717          */
 718         if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
 719                 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
 720                         return;
 721         }
 722
 723         switch (fmt->rate_min) {
 724         case 48000:
 725                 emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
 726                 break;
 727         case 88200:
 728                 emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
 729                 break;
 730         case 96000:
 731                 emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
 732                 break;
 733         case 176400:
 734                 emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
 735                 break;
 736         case 192000:
 737                 emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
 738                 break;
 739         default:
 740                 emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
 741                 break;
 742         }
 743         snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
 744 }
 745
 746 void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
 747                               struct audioformat *fmt)
 748 {
 749         switch (subs->stream->chip->usb_id) {
 750         case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
 751         case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
 752         case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
 753         case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
 754                 set_format_emu_quirk(subs, fmt);
 755                 break;
 756         }
 757 }
 758