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 > MAX_NR_RATES) {
 140                 kfree(fp);
 141                 return -EINVAL;
 142         }
 143         if (fp->nr_rates > 0) {
 144                 rate_table = kmemdup(fp->rate_table,
 145                                      sizeof(int) * fp->nr_rates, GFP_KERNEL);
 146                 if (!rate_table) {
 147                         kfree(fp);
 148                         return -ENOMEM;
 149                 }
 150                 fp->rate_table = rate_table;
 151         }
 152
 153         stream = (fp->endpoint & USB_DIR_IN)
 154                 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 155         err = snd_usb_add_audio_stream(chip, stream, fp);
 156         if (err < 0) {
 157                 kfree(fp);
 158                 kfree(rate_table);
 159                 return err;
 160         }
 161         if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
 162             fp->altset_idx >= iface->num_altsetting) {
 163                 kfree(fp);
 164                 kfree(rate_table);
 165                 return -EINVAL;
 166         }
 167         alts = &iface->altsetting[fp->altset_idx];
 168         if (fp->datainterval == 0)
 169                 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
 170         if (fp->maxpacksize == 0)
 171                 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
 172         usb_set_interface(chip->dev, fp->iface, 0);
 173         snd_usb_init_pitch(chip, fp->iface, alts, fp);
 174         snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
 175         return 0;
 176 }
 177
 178 /*
 179  * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface.
 180  * The only way to detect the sample rate is by looking at wMaxPacketSize.
 181  */
 182 static int create_uaxx_quirk(struct snd_usb_audio *chip,
 183                              struct usb_interface *iface,
 184                              struct usb_driver *driver,
 185                              const struct snd_usb_audio_quirk *quirk)
 186 {
 187         static const struct audioformat ua_format = {
 188                 .formats = SNDRV_PCM_FMTBIT_S24_3LE,
 189                 .channels = 2,
 190                 .fmt_type = UAC_FORMAT_TYPE_I,
 191                 .altsetting = 1,
 192                 .altset_idx = 1,
 193                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
 194         };
 195         struct usb_host_interface *alts;
 196         struct usb_interface_descriptor *altsd;
 197         struct audioformat *fp;
 198         int stream, err;
 199
 200         /* both PCM and MIDI interfaces have 2 or more altsettings */
 201         if (iface->num_altsetting < 2)
 202                 return -ENXIO;
 203         alts = &iface->altsetting[1];
 204         altsd = get_iface_desc(alts);
 205
 206         if (altsd->bNumEndpoints == 2) {
 207                 static const struct snd_usb_midi_endpoint_info ua700_ep = {
 208                         .out_cables = 0x0003,
 209                         .in_cables  = 0x0003
 210                 };
 211                 static const struct snd_usb_audio_quirk ua700_quirk = {
 212                         .type = QUIRK_MIDI_FIXED_ENDPOINT,
 213                         .data = &ua700_ep
 214                 };
 215                 static const struct snd_usb_midi_endpoint_info uaxx_ep = {
 216                         .out_cables = 0x0001,
 217                         .in_cables  = 0x0001
 218                 };
 219                 static const struct snd_usb_audio_quirk uaxx_quirk = {
 220                         .type = QUIRK_MIDI_FIXED_ENDPOINT,
 221                         .data = &uaxx_ep
 222                 };
 223                 const struct snd_usb_audio_quirk *quirk =
 224                         chip->usb_id == USB_ID(0x0582, 0x002b)
 225                         ? &ua700_quirk : &uaxx_quirk;
 226                 return snd_usbmidi_create(chip->card, iface,
 227                                           &chip->midi_list, quirk);
 228         }
 229
 230         if (altsd->bNumEndpoints != 1)
 231                 return -ENXIO;
 232
 233         fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL);
 234         if (!fp)
 235                 return -ENOMEM;
 236
 237         fp->iface = altsd->bInterfaceNumber;
 238         fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
 239         fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
 240         fp->datainterval = 0;
 241         fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
 242
 243         switch (fp->maxpacksize) {
 244         case 0x120:
 245                 fp->rate_max = fp->rate_min = 44100;
 246                 break;
 247         case 0x138:
 248         case 0x140:
 249                 fp->rate_max = fp->rate_min = 48000;
 250                 break;
 251         case 0x258:
 252         case 0x260:
 253                 fp->rate_max = fp->rate_min = 96000;
 254                 break;
 255         default:
 256                 snd_printk(KERN_ERR "unknown sample rate\n");
 257                 kfree(fp);
 258                 return -ENXIO;
 259         }
 260
 261         stream = (fp->endpoint & USB_DIR_IN)
 262                 ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 263         err = snd_usb_add_audio_stream(chip, stream, fp);
 264         if (err < 0) {
 265                 kfree(fp);
 266                 return err;
 267         }
 268         usb_set_interface(chip->dev, fp->iface, 0);
 269         return 0;
 270 }
 271
 272 /*
 273  * Create a standard mixer for the specified interface.
 274  */
 275 static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
 276                                        struct usb_interface *iface,
 277                                        struct usb_driver *driver,
 278                                        const struct snd_usb_audio_quirk *quirk)
 279 {
 280         if (quirk->ifnum < 0)
 281                 return 0;
 282
 283         return snd_usb_create_mixer(chip, quirk->ifnum, 0);
 284 }
 285
 286 /*
 287  * audio-interface quirks
 288  *
 289  * returns zero if no standard audio/MIDI parsing is needed.
 290  * returns a positive value if standard audio/midi interfaces are parsed
 291  * after this.
 292  * returns a negative value at error.
 293  */
 294 int snd_usb_create_quirk(struct snd_usb_audio *chip,
 295                          struct usb_interface *iface,
 296                          struct usb_driver *driver,
 297                          const struct snd_usb_audio_quirk *quirk)
 298 {
 299         typedef int (*quirk_func_t)(struct snd_usb_audio *,
 300                                     struct usb_interface *,
 301                                     struct usb_driver *,
 302                                     const struct snd_usb_audio_quirk *);
 303         static const quirk_func_t quirk_funcs[] = {
 304                 [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk,
 305                 [QUIRK_COMPOSITE] = create_composite_quirk,
 306                 [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk,
 307                 [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk,
 308                 [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk,
 309                 [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk,
 310                 [QUIRK_MIDI_NOVATION] = create_any_midi_quirk,
 311                 [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk,
 312                 [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk,
 313                 [QUIRK_MIDI_CME] = create_any_midi_quirk,
 314                 [QUIRK_MIDI_AKAI] = create_any_midi_quirk,
 315                 [QUIRK_MIDI_FTDI] = create_any_midi_quirk,
 316                 [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
 317                 [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
 318                 [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
 319                 [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
 320                 [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
 321         };
 322
 323         if (quirk->type < QUIRK_TYPE_COUNT) {
 324                 return quirk_funcs[quirk->type](chip, iface, driver, quirk);
 325         } else {
 326                 snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
 327                 return -ENXIO;
 328         }
 329 }
 330
 331 /*
 332  * boot quirks
 333  */
 334
 335 #define EXTIGY_FIRMWARE_SIZE_OLD 794
 336 #define EXTIGY_FIRMWARE_SIZE_NEW 483
 337
 338 static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf)
 339 {
 340         struct usb_host_config *config = dev->actconfig;
 341         int err;
 342
 343         if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD ||
 344             le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) {
 345                 snd_printdd("sending Extigy boot sequence...\n");
 346                 /* Send message to force it to reconnect with full interface. */
 347                 err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0),
 348                                       0x10, 0x43, 0x0001, 0x000a, NULL, 0);
 349                 if (err < 0) snd_printdd("error sending boot message: %d\n", err);
 350                 err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
 351                                 &dev->descriptor, sizeof(dev->descriptor));
 352                 config = dev->actconfig;
 353                 if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err);
 354                 err = usb_reset_configuration(dev);
 355                 if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err);
 356                 snd_printdd("extigy_boot: new boot length = %d\n",
 357                             le16_to_cpu(get_cfg_desc(config)->wTotalLength));
 358                 return -ENODEV; /* quit this anyway */
 359         }
 360         return 0;
 361 }
 362
 363 static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev)
 364 {
 365         u8 buf = 1;
 366
 367         snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a,
 368                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 369                         0, 0, &buf, 1);
 370         if (buf == 0) {
 371                 snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29,
 372                                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 373                                 1, 2000, NULL, 0);
 374                 return -ENODEV;
 375         }
 376         return 0;
 377 }
 378
 379 static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev)
 380 {
 381         int err;
 382
 383         if (dev->actconfig->desc.bConfigurationValue == 1) {
 384                 snd_printk(KERN_INFO "usb-audio: "
 385                            "Fast Track Pro switching to config #2\n");
 386                 /* This function has to be available by the usb core module.
 387                  * if it is not avialable the boot quirk has to be left out
 388                  * and the configuration has to be set by udev or hotplug
 389                  * rules
 390                  */
 391                 err = usb_driver_set_configuration(dev, 2);
 392                 if (err < 0)
 393                         snd_printdd("error usb_driver_set_configuration: %d\n",
 394                                     err);
 395                 /* Always return an error, so that we stop creating a device
 396                    that will just be destroyed and recreated with a new
 397                    configuration */
 398                 return -ENODEV;
 399         } else
 400                 snd_printk(KERN_INFO "usb-audio: Fast Track Pro config OK\n");
 401
 402         return 0;
 403 }
 404
 405 /*
 406  * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely
 407  * documented in the device's data sheet.
 408  */
 409 static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value)
 410 {
 411         u8 buf[4];
 412         buf[0] = 0x20;
 413         buf[1] = value & 0xff;
 414         buf[2] = (value >> 8) & 0xff;
 415         buf[3] = reg;
 416         return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION,
 417                                USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT,
 418                                0, 0, &buf, 4);
 419 }
 420
 421 static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
 422 {
 423         /*
 424          * Enable line-out driver mode, set headphone source to front
 425          * channels, enable stereo mic.
 426          */
 427         return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
 428 }
 429
 430 /*
 431  * C-Media CM6206 is based on CM106 with two additional
 432  * registers that are not documented in the data sheet.
 433  * Values here are chosen based on sniffing USB traffic
 434  * under Windows.
 435  */
 436 static int snd_usb_cm6206_boot_quirk(struct usb_device *dev)
 437 {
 438         int err  = 0, reg;
 439         int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000};
 440
 441         for (reg = 0; reg < ARRAY_SIZE(val); reg++) {
 442                 err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]);
 443                 if (err < 0)
 444                         return err;
 445         }
 446
 447         return err;
 448 }
 449
 450 /*
 451  * Novation Twitch DJ controller
 452  */
 453 static int snd_usb_twitch_boot_quirk(struct usb_device *dev)
 454 {
 455         /* preemptively set up the device because otherwise the
 456          * raw MIDI endpoints are not active */
 457         usb_set_interface(dev, 0, 1);
 458         return 0;
 459 }
 460
 461 /*
 462  * This call will put the synth in "USB send" mode, i.e it will send MIDI
 463  * messages through USB (this is disabled at startup). The synth will
 464  * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB
 465  * sign on its LCD. Values here are chosen based on sniffing USB traffic
 466  * under Windows.
 467  */
 468 static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev)
 469 {
 470         int err, actual_length;
 471
 472         /* "midi send" enable */
 473         static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 };
 474
 475         void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL);
 476         if (!buf)
 477                 return -ENOMEM;
 478         err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf,
 479                         ARRAY_SIZE(seq), &actual_length, 1000);
 480         kfree(buf);
 481         if (err < 0)
 482                 return err;
 483
 484         return 0;
 485 }
 486
 487 /*
 488  * Some sound cards from Native Instruments are in fact compliant to the USB
 489  * audio standard of version 2 and other approved USB standards, even though
 490  * they come up as vendor-specific device when first connected.
 491  *
 492  * However, they can be told to come up with a new set of descriptors
 493  * upon their next enumeration, and the interfaces announced by the new
 494  * descriptors will then be handled by the kernel's class drivers. As the
 495  * product ID will also change, no further checks are required.
 496  */
 497
 498 static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev)
 499 {
 500         int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 501                                   0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 502                                   1, 0, NULL, 0, 1000);
 503
 504         if (ret < 0)
 505                 return ret;
 506
 507         usb_reset_device(dev);
 508
 509         /* return -EAGAIN, so the creation of an audio interface for this
 510          * temporary device is aborted. The device will reconnect with a
 511          * new product ID */
 512         return -EAGAIN;
 513 }
 514
 515 static void mbox2_setup_48_24_magic(struct usb_device *dev)
 516 {
 517         u8 srate[3];
 518         u8 temp[12];
 519
 520         /* Choose 48000Hz permanently */
 521         srate[0] = 0x80;
 522         srate[1] = 0xbb;
 523         srate[2] = 0x00;
 524
 525         /* Send the magic! */
 526         snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
 527                 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003);
 528         snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
 529                 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003);
 530         snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
 531                 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003);
 532         snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0),
 533                 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003);
 534         return;
 535 }
 536
 537 /* Digidesign Mbox 2 needs to load firmware onboard
 538  * and driver must wait a few seconds for initialisation.
 539  */
 540
 541 #define MBOX2_FIRMWARE_SIZE    646
 542 #define MBOX2_BOOT_LOADING     0x01 /* Hard coded into the device */
 543 #define MBOX2_BOOT_READY       0x02 /* Hard coded into the device */
 544
 545 static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
 546 {
 547         struct usb_host_config *config = dev->actconfig;
 548         int err;
 549         u8 bootresponse[0x12];
 550         int fwsize;
 551         int count;
 552
 553         fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength);
 554
 555         if (fwsize != MBOX2_FIRMWARE_SIZE) {
 556                 snd_printk(KERN_ERR "usb-audio: Invalid firmware size=%d.\n", fwsize);
 557                 return -ENODEV;
 558         }
 559
 560         snd_printd("usb-audio: Sending Digidesign Mbox 2 boot sequence...\n");
 561
 562         count = 0;
 563         bootresponse[0] = MBOX2_BOOT_LOADING;
 564         while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) {
 565                 msleep(500); /* 0.5 second delay */
 566                 snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0),
 567                         /* Control magic - load onboard firmware */
 568                         0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012);
 569                 if (bootresponse[0] == MBOX2_BOOT_READY)
 570                         break;
 571                 snd_printd("usb-audio: device not ready, resending boot sequence...\n");
 572                 count++;
 573         }
 574
 575         if (bootresponse[0] != MBOX2_BOOT_READY) {
 576                 snd_printk(KERN_ERR "usb-audio: Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]);
 577                 return -ENODEV;
 578         }
 579
 580         snd_printdd("usb-audio: device initialised!\n");
 581
 582         err = usb_get_descriptor(dev, USB_DT_DEVICE, 0,
 583                 &dev->descriptor, sizeof(dev->descriptor));
 584         config = dev->actconfig;
 585         if (err < 0)
 586                 snd_printd("error usb_get_descriptor: %d\n", err);
 587
 588         err = usb_reset_configuration(dev);
 589         if (err < 0)
 590                 snd_printd("error usb_reset_configuration: %d\n", err);
 591         snd_printdd("mbox2_boot: new boot length = %d\n",
 592                 le16_to_cpu(get_cfg_desc(config)->wTotalLength));
 593
 594         mbox2_setup_48_24_magic(dev);
 595
 596         snd_printk(KERN_INFO "usb-audio: Digidesign Mbox 2: 24bit 48kHz");
 597
 598         return 0; /* Successful boot */
 599 }
 600
 601 /*
 602  * Setup quirks
 603  */
 604 #define MAUDIO_SET              0x01 /* parse device_setup */
 605 #define MAUDIO_SET_COMPATIBLE   0x80 /* use only "win-compatible" interfaces */
 606 #define MAUDIO_SET_DTS          0x02 /* enable DTS Digital Output */
 607 #define MAUDIO_SET_96K          0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */
 608 #define MAUDIO_SET_24B          0x08 /* 24bits sample if set, 16bits otherwise */
 609 #define MAUDIO_SET_DI           0x10 /* enable Digital Input */
 610 #define MAUDIO_SET_MASK         0x1f /* bit mask for setup value */
 611 #define MAUDIO_SET_24B_48K_DI    0x19 /* 24bits+48KHz+Digital Input */
 612 #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */
 613 #define MAUDIO_SET_16B_48K_DI    0x11 /* 16bits+48KHz+Digital Input */
 614 #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */
 615
 616 static int quattro_skip_setting_quirk(struct snd_usb_audio *chip,
 617                                       int iface, int altno)
 618 {
 619         /* Reset ALL ifaces to 0 altsetting.
 620          * Call it for every possible altsetting of every interface.
 621          */
 622         usb_set_interface(chip->dev, iface, 0);
 623         if (chip->setup & MAUDIO_SET) {
 624                 if (chip->setup & MAUDIO_SET_COMPATIBLE) {
 625                         if (iface != 1 && iface != 2)
 626                                 return 1; /* skip all interfaces but 1 and 2 */
 627                 } else {
 628                         unsigned int mask;
 629                         if (iface == 1 || iface == 2)
 630                                 return 1; /* skip interfaces 1 and 2 */
 631                         if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
 632                                 return 1; /* skip this altsetting */
 633                         mask = chip->setup & MAUDIO_SET_MASK;
 634                         if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
 635                                 return 1; /* skip this altsetting */
 636                         if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
 637                                 return 1; /* skip this altsetting */
 638                         if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4)
 639                                 return 1; /* skip this altsetting */
 640                 }
 641         }
 642         snd_printdd(KERN_INFO
 643                     "using altsetting %d for interface %d config %d\n",
 644                     altno, iface, chip->setup);
 645         return 0; /* keep this altsetting */
 646 }
 647
 648 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
 649                                          int iface,
 650                                          int altno)
 651 {
 652         /* Reset ALL ifaces to 0 altsetting.
 653          * Call it for every possible altsetting of every interface.
 654          */
 655         usb_set_interface(chip->dev, iface, 0);
 656
 657         if (chip->setup & MAUDIO_SET) {
 658                 unsigned int mask;
 659                 if ((chip->setup & MAUDIO_SET_DTS) && altno != 6)
 660                         return 1; /* skip this altsetting */
 661                 if ((chip->setup & MAUDIO_SET_96K) && altno != 1)
 662                         return 1; /* skip this altsetting */
 663                 mask = chip->setup & MAUDIO_SET_MASK;
 664                 if (mask == MAUDIO_SET_24B_48K_DI && altno != 2)
 665                         return 1; /* skip this altsetting */
 666                 if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3)
 667                         return 1; /* skip this altsetting */
 668                 if (mask == MAUDIO_SET_16B_48K_DI && altno != 4)
 669                         return 1; /* skip this altsetting */
 670                 if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5)
 671                         return 1; /* skip this altsetting */
 672         }
 673
 674         return 0; /* keep this altsetting */
 675 }
 676
 677 static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
 678                                            int iface, int altno)
 679 {
 680         /* Reset ALL ifaces to 0 altsetting.
 681          * Call it for every possible altsetting of every interface.
 682          */
 683         usb_set_interface(chip->dev, iface, 0);
 684
 685         /* possible configuration where both inputs and only one output is
 686          *used is not supported by the current setup
 687          */
 688         if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) {
 689                 if (chip->setup & MAUDIO_SET_96K) {
 690                         if (altno != 3 && altno != 6)
 691                                 return 1;
 692                 } else if (chip->setup & MAUDIO_SET_DI) {
 693                         if (iface == 4)
 694                                 return 1; /* no analog input */
 695                         if (altno != 2 && altno != 5)
 696                                 return 1; /* enable only altsets 2 and 5 */
 697                 } else {
 698                         if (iface == 5)
 699                                 return 1; /* disable digialt input */
 700                         if (altno != 2 && altno != 5)
 701                                 return 1; /* enalbe only altsets 2 and 5 */
 702                 }
 703         } else {
 704                 /* keep only 16-Bit mode */
 705                 if (altno != 1)
 706                         return 1;
 707         }
 708
 709         snd_printdd(KERN_INFO
 710                     "using altsetting %d for interface %d config %d\n",
 711                     altno, iface, chip->setup);
 712         return 0; /* keep this altsetting */
 713 }
 714
 715 int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
 716                                   int iface,
 717                                   int altno)
 718 {
 719         /* audiophile usb: skip altsets incompatible with device_setup */
 720         if (chip->usb_id == USB_ID(0x0763, 0x2003))
 721                 return audiophile_skip_setting_quirk(chip, iface, altno);
 722         /* quattro usb: skip altsets incompatible with device_setup */
 723         if (chip->usb_id == USB_ID(0x0763, 0x2001))
 724                 return quattro_skip_setting_quirk(chip, iface, altno);
 725         /* fasttrackpro usb: skip altsets incompatible with device_setup */
 726         if (chip->usb_id == USB_ID(0x0763, 0x2012))
 727                 return fasttrackpro_skip_setting_quirk(chip, iface, altno);
 728
 729         return 0;
 730 }
 731
 732 int snd_usb_apply_boot_quirk(struct usb_device *dev,
 733                              struct usb_interface *intf,
 734                              const struct snd_usb_audio_quirk *quirk)
 735 {
 736         u32 id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
 737                         le16_to_cpu(dev->descriptor.idProduct));
 738
 739         switch (id) {
 740         case USB_ID(0x041e, 0x3000):
 741                 /* SB Extigy needs special boot-up sequence */
 742                 /* if more models come, this will go to the quirk list. */
 743                 return snd_usb_extigy_boot_quirk(dev, intf);
 744
 745         case USB_ID(0x041e, 0x3020):
 746                 /* SB Audigy 2 NX needs its own boot-up magic, too */
 747                 return snd_usb_audigy2nx_boot_quirk(dev);
 748
 749         case USB_ID(0x10f5, 0x0200):
 750                 /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */
 751                 return snd_usb_cm106_boot_quirk(dev);
 752
 753         case USB_ID(0x0d8c, 0x0102):
 754                 /* C-Media CM6206 / CM106-Like Sound Device */
 755         case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */
 756                 return snd_usb_cm6206_boot_quirk(dev);
 757
 758         case USB_ID(0x0dba, 0x3000):
 759                 /* Digidesign Mbox 2 */
 760                 return snd_usb_mbox2_boot_quirk(dev);
 761
 762         case USB_ID(0x1235, 0x0018):
 763                 /* Focusrite Novation Twitch */
 764                 return snd_usb_twitch_boot_quirk(dev);
 765
 766         case USB_ID(0x133e, 0x0815):
 767                 /* Access Music VirusTI Desktop */
 768                 return snd_usb_accessmusic_boot_quirk(dev);
 769
 770         case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */
 771         case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */
 772         case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */
 773                 return snd_usb_nativeinstruments_boot_quirk(dev);
 774         case USB_ID(0x0763, 0x2012):  /* M-Audio Fast Track Pro USB */
 775                 return snd_usb_fasttrackpro_boot_quirk(dev);
 776         }
 777
 778         return 0;
 779 }
 780
 781 /*
 782  * check if the device uses big-endian samples
 783  */
 784 int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp)
 785 {
 786         /* it depends on altsetting whether the device is big-endian or not */
 787         switch (chip->usb_id) {
 788         case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
 789                 if (fp->altsetting == 2 || fp->altsetting == 3 ||
 790                         fp->altsetting == 5 || fp->altsetting == 6)
 791                         return 1;
 792                 break;
 793         case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
 794                 if (chip->setup == 0x00 ||
 795                         fp->altsetting == 1 || fp->altsetting == 2 ||
 796                         fp->altsetting == 3)
 797                         return 1;
 798                 break;
 799         case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
 800                 if (fp->altsetting == 2 || fp->altsetting == 3 ||
 801                         fp->altsetting == 5 || fp->altsetting == 6)
 802                         return 1;
 803                 break;
 804         }
 805         return 0;
 806 }
 807
 808 /*
 809  * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device,
 810  * not for interface.
 811  */
 812
 813 enum {
 814         EMU_QUIRK_SR_44100HZ = 0,
 815         EMU_QUIRK_SR_48000HZ,
 816         EMU_QUIRK_SR_88200HZ,
 817         EMU_QUIRK_SR_96000HZ,
 818         EMU_QUIRK_SR_176400HZ,
 819         EMU_QUIRK_SR_192000HZ
 820 };
 821
 822 static void set_format_emu_quirk(struct snd_usb_substream *subs,
 823                                  struct audioformat *fmt)
 824 {
 825         unsigned char emu_samplerate_id = 0;
 826
 827         /* When capture is active
 828          * sample rate shouldn't be changed
 829          * by playback substream
 830          */
 831         if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) {
 832                 if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1)
 833                         return;
 834         }
 835
 836         switch (fmt->rate_min) {
 837         case 48000:
 838                 emu_samplerate_id = EMU_QUIRK_SR_48000HZ;
 839                 break;
 840         case 88200:
 841                 emu_samplerate_id = EMU_QUIRK_SR_88200HZ;
 842                 break;
 843         case 96000:
 844                 emu_samplerate_id = EMU_QUIRK_SR_96000HZ;
 845                 break;
 846         case 176400:
 847                 emu_samplerate_id = EMU_QUIRK_SR_176400HZ;
 848                 break;
 849         case 192000:
 850                 emu_samplerate_id = EMU_QUIRK_SR_192000HZ;
 851                 break;
 852         default:
 853                 emu_samplerate_id = EMU_QUIRK_SR_44100HZ;
 854                 break;
 855         }
 856         snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
 857         subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
 858 }
 859
 860 void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
 861                               struct audioformat *fmt)
 862 {
 863         switch (subs->stream->chip->usb_id) {
 864         case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
 865         case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
 866         case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
 867         case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */
 868                 set_format_emu_quirk(subs, fmt);
 869                 break;
 870         }
 871 }
 872
 873 void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep)
 874 {
 875         /*
 876          * "Playback Design" products send bogus feedback data at the start
 877          * of the stream. Ignore them.
 878          */
 879         if ((le16_to_cpu(ep->chip->dev->descriptor.idVendor) == 0x23ba) &&
 880             ep->type == SND_USB_ENDPOINT_TYPE_SYNC)
 881                 ep->skip_packets = 4;
 882
 883         /*
 884          * M-Audio Fast Track C400/C600 - when packets are not skipped, real
 885          * world latency varies by approx. +/- 50 frames (at 96KHz) each time
 886          * the stream is (re)started. When skipping packets 16 at endpoint
 887          * start up, the real world latency is stable within +/- 1 frame (also
 888          * across power cycles).
 889          */
 890         if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) ||
 891              ep->chip->usb_id == USB_ID(0x0763, 0x2031)) &&
 892             ep->type == SND_USB_ENDPOINT_TYPE_DATA)
 893                 ep->skip_packets = 16;
 894 }
 895
 896 void snd_usb_set_interface_quirk(struct usb_device *dev)
 897 {
 898         /*
 899          * "Playback Design" products need a 50ms delay after setting the
 900          * USB interface.
 901          */
 902         if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
 903                 mdelay(50);
 904 }
 905
 906 void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
 907                            __u8 request, __u8 requesttype, __u16 value,
 908                            __u16 index, void *data, __u16 size)
 909 {
 910         /*
 911          * "Playback Design" products need a 20ms delay after each
 912          * class compliant request
 913          */
 914         if ((le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) &&
 915             (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
 916                 mdelay(20);
 917 }
 918
 919 /*
 920  * snd_usb_interface_dsd_format_quirks() is called from format.c to
 921  * augment the PCM format bit-field for DSD types. The UAC standards
 922  * don't have a designated bit field to denote DSD-capable interfaces,
 923  * hence all hardware that is known to support this format has to be
 924  * listed here.
 925  */
 926 u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 927                                         struct audioformat *fp,
 928                                         unsigned int sample_bytes)
 929 {
 930         /* Playback Designs */
 931         if (le16_to_cpu(chip->dev->descriptor.idVendor) == 0x23ba) {
 932                 switch (fp->altsetting) {
 933                 case 1:
 934                         fp->dsd_dop = true;
 935                         return SNDRV_PCM_FMTBIT_DSD_U16_LE;
 936                 case 2:
 937                         fp->dsd_bitrev = true;
 938                         return SNDRV_PCM_FMTBIT_DSD_U8;
 939                 case 3:
 940                         fp->dsd_bitrev = true;
 941                         return SNDRV_PCM_FMTBIT_DSD_U16_LE;
 942                 }
 943         }
 944
 945         return 0;
 946 }