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 #include "stream.h"
  38
  39 /*
  40  * handle the quirks for the contained interfaces
  41  */
  42 static int create_composite_quirk(struct snd_usb_audio *chip,
  43                                   struct usb_interface *iface,
  44                                   struct usb_driver *driver,
  45                                   const struct snd_usb_audio_quirk *quirk)
  46 {
  47         int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber;
  48         int err;
  49
  50         for (quirk = quirk->data; quirk->ifnum >= 0; ++quirk) {
  51                 iface = usb_ifnum_to_if(chip->dev, quirk->ifnum);
  52                 if (!iface)
  53                         continue;
  54                 if (quirk->ifnum != probed_ifnum &&
  55                     usb_interface_claimed(iface))
  56                         continue;
  57                 err = snd_usb_create_quirk(chip, iface, driver, quirk);
  58                 if (err < 0)
  59                         return err;
  60                 if (quirk->ifnum != probed_ifnum)
  61                         usb_driver_claim_interface(driver, iface, (void *)-1L);
  62         }
  63         return 0;
  64 }
  65
  66 static int ignore_interface_quirk(struct snd_usb_audio *chip,
  67                                   struct usb_interface *iface,
  68                                   struct usb_driver *driver,
  69                                   const struct snd_usb_audio_quirk *quirk)
  70 {
  71         return 0;
  72 }
  73
  74
  75 /*
  76  * Allow alignment on audio sub-slot (channel samples) rather than
  77  * on audio slots (audio frames)
  78  */
  79 static int create_align_transfer_quirk(struct snd_usb_audio *chip,
  80                                        struct usb_interface *iface,
  81                                        struct usb_driver *driver,
  82                                        const struct snd_usb_audio_quirk *quirk)
  83 {
  84         chip->txfr_quirk = 1;
  85         return 1;       /* Continue with creating streams and mixer */
  86 }
  87
  88 static int create_any_midi_quirk(struct snd_usb_audio *chip,
  89                                  struct usb_interface *intf,
  90                                  struct usb_driver *driver,
  91                                  const struct snd_usb_audio_quirk *quirk)
  92 {
  93         return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk);
  94 }
  95
  96 /*
  97  * create a stream for an interface with proper descriptors
  98  */
  99 static int create_standard_audio_quirk(struct snd_usb_audio *chip,
 100                                        struct usb_interface *iface,
 101                                        struct usb_driver *driver,
 102                                        const struct snd_usb_audio_quirk *quirk)
 103 {
 104         struct usb_host_interface *alts;
 105         struct usb_interface_descriptor *altsd;
 106         int err;
 107
 108         alts = &iface->altsetting[0];
 109         altsd = get_iface_desc(alts);
 110         err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber);
 111         if (err < 0) {
 112                 snd_printk(KERN_ERR "cannot setup if %d: error %d\n",
 113                            altsd->bInterfaceNumber, err);
 114                 return err;
 115         }
 116         /* reset the current interface */
 117         usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0);
 118         return 0;
 119 }
 120
 121 /*
 122  * create a stream for an endpoint/altsetting without proper descriptors
 123  */
 124 static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
 125                                      struct usb_interface *iface,
 126                                      struct usb_driver *driver,
 127                                      const struct snd_usb_audio_quirk *quirk)
 128 {
 129         struct audioformat *fp;
 130         struct usb_host_interface *alts;
 131         int stream, err;
 132         unsigned *rate_table = NULL;
 133
 134         fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
 135         if (! fp) {
 136                 snd_printk(KERN_ERR "cannot memdup\n");
 137                 return -ENOMEM;
 138         }
 139         if (fp->nr_rates > 0) {
 140                 rate_table = kmalloc(sizeof(int) * fp->nr_rates, GFP_KERNEL);
 141                 if (!rate_table) {
 142                         kfree(fp);
 143                         return -ENOMEM;
 144                 }
 145                 memcpy(rate_table, fp->rate_table, sizeof(int) * fp->nr_rates);
 146                 fp->rate_table = rate_table;
 147         }
 148
 149         stream = (fp->endpoint & USB_DIR_IN)
 150                 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 151         err = snd_usb_add_audio_stream(chip, stream, fp);
 152         if (err < 0) {
 153                 kfree(fp);
 154                 kfree(rate_table);
 155                 return err;
 156         }
 157         if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
 158             fp->altset_idx >= iface->num_altsetting) {
 159                 kfree(fp);
 160                 kfree(rate_table);
 161                 return -EINVAL;
 162         }
 163         alts = &iface->altsetting[fp->altset_idx];
 164         fp->datainterval = snd_usb_parse_datainterval(chip, alts);
 165         fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
 166         usb_set_interface(chip->dev, fp->iface, 0);
 167         snd_usb_init_pitch(chip, fp->iface, alts, fp);
 168         snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
 169         return 0;
 170 }
 171
 172 /*
 173  * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
 174  * The only way to detect the sample rate is by looking at wMaxPacketSize.
 175  */
 176 static int create_uaxx_quirk(struct snd_usb_audio *chip,
 177                              struct usb_interface *iface,
 178                              struct usb_driver *driver,
 179                              const struct snd_usb_audio_quirk *quirk)
 180 {
 181         static const struct audioformat ua_format = {
 182                 .formats = SNDRV_PCM_FMTBIT_S24_3LE,
 183                 .channels = 2,
 184                 .fmt_type = UAC_FORMAT_TYPE_I,
 185                 .altsetting = 1,
 186                 .altset_idx = 1,
 187                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
 188         };
 189         struct usb_host_interface *alts;
 190         struct usb_interface_descriptor *altsd;
 191         struct audioformat *fp;
 192         int stream, err;
 193
 194         /* both PCM and MIDI interfaces have 2 or more altsettings */
 195         if (iface->num_altsetting < 2)
 196                 return -ENXIO;
 197         alts = &iface->altsetting[1];
 198         altsd = get_iface_desc(alts);
 199
 200         if (altsd->bNumEndpoints == 2) {
 201                 static const struct snd_usb_midi_endpoint_info ua700_ep = {
 202                         .out_cables = 0x0003,
 203                         .in_cables  = 0x0003
 204                 };
 205                 static const struct snd_usb_audio_quirk ua700_quirk = {
 206                         .type = QUIRK_MIDI_FIXED_ENDPOINT,
 207                         .data = &ua700_ep
 208                 };
 209                 static const struct snd_usb_midi_endpoint_info uaxx_ep = {
 210                         .out_cables = 0x0001,
 211                         .in_cables  = 0x0001
 212                 };
 213                 static const struct snd_usb_audio_quirk uaxx_quirk = {
 214                         .type = QUIRK_MIDI_FIXED_ENDPOINT,
 215                         .data = &uaxx_ep
 216                 };
 217                 const struct snd_usb_audio_quirk *quirk =
 218                         chip->usb_id == USB_ID(0x0582, 0x002b)
 219                         ? &ua700_quirk : &uaxx_quirk;
 220                 return snd_usbmidi_create(chip->card, iface,
 221                                           &chip->midi_list, quirk);
 222         }
 223
 224         if (altsd->bNumEndpoints != 1)
 225                 return -ENXIO;
 226
 227         fp = kmalloc(sizeof(*fp), GFP_KERNEL);
 228         if (!fp)
 229                 return -ENOMEM;
 230         memcpy(fp, &ua_format, sizeof(*fp));
 231
 232         fp->iface = altsd->bInterfaceNumber;
 233         fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
 234         fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
 235         fp->datainterval = 0;
 236         fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
 237
 238         switch (fp->maxpacksize) {
 239         case 0x120:
 240                 fp->rate_max = fp->rate_min = 44100;
 241                 break;
 242         case 0x138:
 243         case 0x140:
 244                 fp->rate_max = fp->rate_min = 48000;
 245                 break;
 246         case 0x258:
 247         case 0x260:
 248                 fp->rate_max = fp->rate_min = 96000;
 249                 break;
 250         default:
 251                 snd_printk(KERN_ERR "unknown sample rate\n");
 252                 kfree(fp);
 253                 return -ENXIO;
 254         }
 255
 256         stream = (fp->endpoint & USB_DIR_IN)
 257                 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 258         err = snd_usb_add_audio_stream(chip, stream, fp);
 259         if (err < 0) {
 260                 kfree(fp);
 261                 return err;
 262         }
 263         usb_set_interface(chip->dev, fp->iface, 0);
 264         return 0;
 265 }
 266
 267 /*
 268  * Create a standard mixer for the specified interface.
 269  */
 270 static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
 271                                        struct usb_interface *iface,
 272                                        struct usb_driver *driver,
 273                                        const struct snd_usb_audio_quirk *quirk)
 274 {
 275         if (quirk->ifnum < 0)
 276                 return 0;
 277
 278         return snd_usb_create_mixer(chip, quirk->ifnum, 0);
 279 }
 280
 281 /*
 282  * audio-interface quirks
 283  *
 284  * returns zero if no standard audio/MIDI parsing is needed.
 285  * returns a positive value if standard audio/midi interfaces are parsed
 286  * after this.
 287  * returns a negative value at error.
 288  */
 289 int snd_usb_create_quirk(struct snd_usb_audio *chip,
 290                          struct usb_interface *iface,
 291                          struct usb_driver *driver,
 292                          const struct snd_usb_audio_quirk *quirk)
 293 {
 294         typedef int (*quirk_func_t)(struct snd_usb_audio *,
 295                                     struct usb_interface *,
 296                                     struct usb_driver *,
 297                                     const struct snd_usb_audio_quirk *);
 298         static const quirk_func_t quirk_funcs[] = {
 299                 [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
 300                 [QUIRK_COMPOSITE] = create_composite_quirk,
 301                 [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
 302                 [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
 303                 [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
 304                 [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
 305                 [QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
 306                 [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
 307                 [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
 308                 [QUIRK_MIDI_CME] = create_any_midi_quirk,
 309                 [QUIRK_MIDI_AKAI] = create_any_midi_quirk,
 310                 [QUIRK_MIDI_FTDI] = create_any_midi_quirk,
 311                 [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
 312                 [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
 313                 [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
 314                 [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
 315                 [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
 316         };
 317
 318         if (quirk->type < QUIRK_TYPE_COUNT) {
 319                 return quirk_funcs[quirk->type](chip, iface, driver, quirk);
 320         } else {
 321                 snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
 322                 return -ENXIO;
 323         }
 324 }
 325
 326 /*
 327  * boot quirks
 328  */
 329
 330 #define EXTIGY_FIRMWARE_SIZE_OLD 794
 331 #define EXTIGY_FIRMWARE_SIZE_NEW 483
 332
 333 static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
 334 {
 335         struct usb_host_config *config = dev->actconfig;
 336         int err;
 337
 338         if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
 339             le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
 340                 snd_printdd("sending Extigy boot sequence...\n");
 341                 /* Send message to force it to reconnect with full interface. */
 342                 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
 343                                       0x10, 0x43, 0x0001, 0x000a, NULL, 0);
 344                 if (err < 0) snd_printdd("error sending boot message: %d\n", err);
 345                 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
 346                                 &dev->descriptor, sizeof(dev->descriptor));
 347                 config = dev->actconfig;
 348                 if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err);
 349                 err = usb_reset_configuration(dev);
 350                 if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err);
 351                 snd_printdd("extigy_boot: new boot length = %d\n",
 352                             le16_to_cpu(get_cfg_desc(config)->wTotalLength));
 353                 return -ENODEV; /* quit this anyway */
 354         }
 355         return 0;
 356 }
 357
 358 static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
 359 {
 360         u8 buf = 1;
 361
 362         snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
 363                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 364                         0, 0, &buf, 1);
 365         if (buf == 0) {
 366                 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
 367                                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 368                                 1, 2000, NULL, 0);
 369                 return -ENODEV;
 370         }
 371         return 0;
 372 }
 373
 374 static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
 375 {
 376         int err;
 377
 378         if (dev->actconfig->desc.bConfigurationValue == 1) {
 379                 snd_printk(KERN_INFO "usb-audio: "
 380                            "Fast Track Pro switching to config #2\n");
 381                 /* This function has to be available by the usb core module.
 382                  * if it is not avialable the boot quirk has to be left out
 383                  * and the configuration has to be set by udev or hotplug
 384                  * rules
 385                  */
 386                 err = usb_driver_set_configuration(dev, 2);
 387                 if (err < 0) {
 388                         snd_printdd("error usb_driver_set_configuration: %d\n",
 389                                     err);
 390                         return -ENODEV;
 391                 }
 392         } else
 393                 snd_printk(KERN_INFO "usb-audio: Fast Track Pro config OK\n");
 394
 395         return 0;
 396 }
 397
 398 /*
 399  * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
 400  * documented in the device's data sheet.
 401  */
 402 static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
 403 {
 404         u8 buf[4];
 405         buf[0] = 0x20;
 406         buf[1] = value & 0xff;
 407         buf[2] = (value >> 8) & 0xff;
 408         buf[3] = reg;
 409         return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
 410                                USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
 411                                0, 0, &buf, 4);
 412 }
 413
 414 static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
 415 {
 416         /*
 417          * Enable line-out driver mode, set headphone source to front
 418          * channels, enable stereo mic.
 419          */
 420         return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
 421 }
 422
 423 /*
 424  * C-Media CM6206 is based on CM106 with two additional
 425  * registers that are not documented in the data sheet.
 426  * Values here are chosen based on sniffing USB traffic
 427  * under Windows.
 428  */
 429 static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
 430 {
 431         int err  = 0, reg;
 432         int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000};
 433
 434         for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
 435                 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
 436                 if (err < 0)
 437                         return err;
 438         }
 439
 440         return err;
 441 }
 442
 443 /*
 444  * This call will put the synth in "USB send" mode, i.e it will send MIDI
 445  * messages through USB (this is disabled at startup). The synth will
 446  * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
 447  * sign on its LCD. Values here are chosen based on sniffing USB traffic
 448  * under Windows.
 449  */
 450 static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
 451 {
 452         int err, actual_length;
 453
 454         /* "midi send" enable */
 455         static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
 456
 457         void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
 458         if (!buf)
 459                 return -ENOMEM;
 460         err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
 461                         ARRAY_SIZE(seq), &actual_length, 1000);
 462         kfree(buf);
 463         if (err < 0)
 464                 return err;
 465
 466         return 0;
 467 }
 468
 469 /*
 470  * Some sound cards from Native Instruments are in fact compliant to the USB
 471  * audio standard of version 2 and other approved USB standards, even though
 472  * they come up as vendor-specific device when first connected.
 473  *
 474  * However, they can be told to come up with a new set of descriptors
 475  * upon their next enumeration, and the interfaces announced by the new
 476  * descriptors will then be handled by the kernel's class drivers. As the
 477  * product ID will also change, no further checks are required.
 478  */
 479
 480 static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
 481 {
 482         int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 483                                   0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 484                                   cpu_to_le16(1), 0, NULL, 0, 1000);
 485
 486         if (ret < 0)
 487                 return ret;
 488
 489         usb_reset_device(dev);
 490
 491         /* return -EAGAIN, so the creation of an audio interface for this
 492          * temporary device is aborted. The device will reconnect with a
 493          * new product ID */
 494         return -EAGAIN;
 495 }
 496
 497 /*
 498  * Setup quirks
 499  */
 500 #define MAUDIO_SET              0x01 /* parse device_setup */
 501 #define MAUDIO_SET_COMPATIBLE   0x80 /* use only "win-compatible" interfaces */
 502 #define MAUDIO_SET_DTS          0x02 /* enable DTS Digital Output */
 503 #define MAUDIO_SET_96K          0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
 504 #define MAUDIO_SET_24B          0x08 /* 24bits sample if set, 16bits otherwise */
 505 #define MAUDIO_SET_DI           0x10 /* enable Digital Input */
 506 #define MAUDIO_SET_MASK         0x1f /* bit mask for setup value */
 507 #define MAUDIO_SET_24B_48K_DI    0x19 /* 24bits+48KHz+Digital Input */
 508 #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
 509 #define MAUDIO_SET_16B_48K_DI    0x11 /* 16bits+48KHz+Digital Input */
 510 #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
 511
 512 static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
 513                                       int iface, int altno)
 514 {
 515         /* Reset ALL ifaces to 0 altsetting.
 516          * Call it for every possible altsetting of every interface.
 517          */
 518         usb_set_interface(chip->dev, iface, 0);
 519         if (chip->setup & MAUDIO_SET) {
 520                 if (chip->setup & MAUDIO_SET_COMPATIBLE) {
 521                         if (iface != 1 && iface != 2)
 522                                 return 1; /* skip all interfaces but 1 and 2 */
 523                 } else {
 524                         unsigned int mask;
 525                         if (iface == 1 || iface == 2)
 526                                 return 1; /* skip interfaces 1 and 2 */
 527                         if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
 528                                 return 1; /* skip this altsetting */
 529                         mask = chip->setup & MAUDIO_SET_MASK;
 530                         if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
 531                                 return 1; /* skip this altsetting */
 532                         if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
 533                                 return 1; /* skip this altsetting */
 534                         if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
 535                                 return 1; /* skip this altsetting */
 536                 }
 537         }
 538         snd_printdd(KERN_INFO
 539                     "using altsetting %d for interface %d config %d\n",
 540                     altno, iface, chip->setup);
 541         return 0; /* keep this altsetting */
 542 }
 543
 544 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
 545                                          int iface,
 546                                          int altno)
 547 {
 548         /* Reset ALL ifaces to 0 altsetting.
 549          * Call it for every possible altsetting of every interface.
 550          */
 551         usb_set_interface(chip->dev, iface, 0);
 552
 553         if (chip->setup & MAUDIO_SET) {
 554                 unsigned int mask;
 555                 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
 556                         return 1; /* skip this altsetting */
 557                 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
 558                         return 1; /* skip this altsetting */
 559                 mask = chip->setup & MAUDIO_SET_MASK;
 560                 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
 561                         return 1; /* skip this altsetting */
 562                 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
 563                         return 1; /* skip this altsetting */
 564                 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
 565                         return 1; /* skip this altsetting */
 566                 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
 567                         return 1; /* skip this altsetting */
 568         }
 569
 570         return 0; /* keep this altsetting */
 571 }
 572
 573
 574 static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
 575                                            int iface, int altno)
 576 {
 577         /* Reset ALL ifaces to 0 altsetting.
 578          * Call it for every possible altsetting of every interface.
 579          */
 580         usb_set_interface(chip->dev, iface, 0);
 581
 582         /* possible configuration where both inputs and only one output is
 583          *used is not supported by the current setup
 584          */
 585         if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
 586                 if (chip->setup & MAUDIO_SET_96K) {
 587                         if (altno != 3 && altno != 6)
 588                                 return 1;
 589                 } else if (chip->setup & MAUDIO_SET_DI) {
 590                         if (iface == 4)
 591                                 return 1; /* no analog input */
 592                         if (altno != 2 && altno != 5)
 593                                 return 1; /* enable only altsets 2 and 5 */
 594                 } else {
 595                         if (iface == 5)
 596                                 return 1; /* disable digialt input */
 597                         if (altno != 2 && altno != 5)
 598                                 return 1; /* enalbe only altsets 2 and 5 */
 599                 }
 600         } else {
 601                 /* keep only 16-Bit mode */
 602                 if (altno != 1)
 603                         return 1;
 604         }
 605
 606         snd_printdd(KERN_INFO
 607                     "using altsetting %d for interface %d config %d\n",
 608                     altno, iface, chip->setup);
 609         return 0; /* keep this altsetting */
 610 }
 611
 612 int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
 613                                   int iface,
 614                                   int altno)
 615 {
 616         /* audiophile usb: skip altsets incompatible with device_setup */
 617         if (chip->usb_id == USB_ID(0x0763, 0x2003))
 618                 return audiophile_skip_setting_quirk(chip, iface, altno);
 619         /* quattro usb: skip altsets incompatible with device_setup */
 620         if (chip->usb_id == USB_ID(0x0763, 0x2001))
 621                 return quattro_skip_setting_quirk(chip, iface, altno);
 622         /* fasttrackpro usb: skip altsets incompatible with device_setup */
 623         if (chip->usb_id == USB_ID(0x0763, 0x2012))
 624                 return fasttrackpro_skip_setting_quirk(chip, iface, altno);
 625
 626         return 0;
 627 }
 628
 629 int snd_usb_apply_boot_quirk(struct usb_device *dev,
 630                              struct usb_interface *intf,
 631                              const struct snd_usb_audio_quirk *quirk)
 632 {
 633         u32 id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
 634                         le16_to_cpu(dev->descriptor.idProduct));
 635
 636         switch (id) {
 637         case USB_ID(0x041e, 0x3000):
 638                 /* SB Extigy needs special boot-up sequence */
 639                 /* if more models come, this will go to the quirk list. */
 640                 return snd_usb_extigy_boot_quirk(dev, intf);
 641
 642         case USB_ID(0x041e, 0x3020):
 643                 /* SB Audigy 2 NX needs its own boot-up magic, too */
 644                 return snd_usb_audigy2nx_boot_quirk(dev);
 645
 646         case USB_ID(0x10f5, 0x0200):
 647                 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
 648                 return snd_usb_cm106_boot_quirk(dev);
 649
 650         case USB_ID(0x0d8c, 0x0102):
 651                 /* C-Media CM6206 / CM106-Like Sound Device */
 652         case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
 653                 return snd_usb_cm6206_boot_quirk(dev);
 654
 655         case USB_ID(0x133e, 0x0815):
 656                 /* Access Music VirusTI Desktop */
 657                 return snd_usb_accessmusic_boot_quirk(dev);
 658
 659         case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
 660         case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
 661         case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
 662                 return snd_usb_nativeinstruments_boot_quirk(dev);
 663         case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
 664                 return snd_usb_fasttrackpro_boot_quirk(dev);
 665         }
 666
 667         return 0;
 668 }
 669
 670 /*
 671  * check if the device uses big-endian samples
 672  */
 673 int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
 674 {
 675         /* it depends on altsetting wether the device is big-endian or not */
 676         switch (chip->usb_id) {
 677         case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
 678                 if (fp->altsetting == 2 || fp->altsetting == 3 ||
 679                         fp->altsetting == 5 || fp->altsetting == 6)
 680                         return 1;
 681                 break;
 682         case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
 683                 if (chip->setup == 0x00 ||
 684                         fp->altsetting == 1 || fp->altsetting == 2 ||
 685                         fp->altsetting == 3)
 686                         return 1;
 687                 break;
 688         case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
 689                 if (fp->altsetting == 2 || fp->altsetting == 3 ||
 690                         fp->altsetting == 5 || fp->altsetting == 6)
 691                         return 1;
 692                 break;
 693         }
 694         return 0;
 695 }
 696
 697 /*
 698  * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
 699  * not for interface.
 700  */
 701
 702 enum {
 703         EMU_QUIRK_SR_44100HZ = 0,
 704         EMU_QUIRK_SR_48000HZ,
 705         EMU_QUIRK_SR_88200HZ,
 706         EMU_QUIRK_SR_96000HZ,
 707         EMU_QUIRK_SR_176400HZ,
 708         EMU_QUIRK_SR_192000HZ
 709 };
 710
 711 static void set_format_emu_quirk(struct snd_usb_substream *subs,
 712                                  struct audioformat *fmt)
 713 {
 714         unsigned char emu_samplerate_id = 0;
 715
 716         /* When capture is active
 717          * sample rate shouldn't be changed
 718          * by playback substream
 719          */
 720         if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
 721                 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
 722                         return;
 723         }
 724
 725         switch (fmt->rate_min) {
 726         case 48000:
 727                 emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
 728                 break;
 729         case 88200:
 730                 emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
 731                 break;
 732         case 96000:
 733                 emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
 734                 break;
 735         case 176400:
 736                 emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
 737                 break;
 738         case 192000:
 739                 emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
 740                 break;
 741         default:
 742                 emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
 743                 break;
 744         }
 745         snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
 746 }
 747
 748 void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
 749                               struct audioformat *fmt)
 750 {
 751         switch (subs->stream->chip->usb_id) {
 752         case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
 753         case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
 754         case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
 755         case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
 756                 set_format_emu_quirk(subs, fmt);
 757                 break;
 758         }
 759 }
 760