| 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_MIDI_CH345] = create_any_midi_quirk, |
| 317 | [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk, |
| 318 | [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk, |
| 319 | [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk, |
| 320 | [QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk, |
| 321 | [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk, |
| 322 | }; |
| 323 | |
| 324 | if (quirk->type < QUIRK_TYPE_COUNT) { |
| 325 | return quirk_funcs[quirk->type](chip, iface, driver, quirk); |
| 326 | } else { |
| 327 | snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type); |
| 328 | return -ENXIO; |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | /* |
| 333 | * boot quirks |
| 334 | */ |
| 335 | |
| 336 | #define EXTIGY_FIRMWARE_SIZE_OLD 794 |
| 337 | #define EXTIGY_FIRMWARE_SIZE_NEW 483 |
| 338 | |
| 339 | static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf) |
| 340 | { |
| 341 | struct usb_host_config *config = dev->actconfig; |
| 342 | int err; |
| 343 | |
| 344 | if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD || |
| 345 | le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) { |
| 346 | snd_printdd("sending Extigy boot sequence...\n"); |
| 347 | /* Send message to force it to reconnect with full interface. */ |
| 348 | err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0), |
| 349 | 0x10, 0x43, 0x0001, 0x000a, NULL, 0); |
| 350 | if (err < 0) snd_printdd("error sending boot message: %d\n", err); |
| 351 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, |
| 352 | &dev->descriptor, sizeof(dev->descriptor)); |
| 353 | config = dev->actconfig; |
| 354 | if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err); |
| 355 | err = usb_reset_configuration(dev); |
| 356 | if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err); |
| 357 | snd_printdd("extigy_boot: new boot length = %d\n", |
| 358 | le16_to_cpu(get_cfg_desc(config)->wTotalLength)); |
| 359 | return -ENODEV; /* quit this anyway */ |
| 360 | } |
| 361 | return 0; |
| 362 | } |
| 363 | |
| 364 | static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev) |
| 365 | { |
| 366 | u8 buf = 1; |
| 367 | |
| 368 | snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a, |
| 369 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, |
| 370 | 0, 0, &buf, 1); |
| 371 | if (buf == 0) { |
| 372 | snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29, |
| 373 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, |
| 374 | 1, 2000, NULL, 0); |
| 375 | return -ENODEV; |
| 376 | } |
| 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev) |
| 381 | { |
| 382 | int err; |
| 383 | |
| 384 | if (dev->actconfig->desc.bConfigurationValue == 1) { |
| 385 | snd_printk(KERN_INFO "usb-audio: " |
| 386 | "Fast Track Pro switching to config #2\n"); |
| 387 | /* This function has to be available by the usb core module. |
| 388 | * if it is not avialable the boot quirk has to be left out |
| 389 | * and the configuration has to be set by udev or hotplug |
| 390 | * rules |
| 391 | */ |
| 392 | err = usb_driver_set_configuration(dev, 2); |
| 393 | if (err < 0) |
| 394 | snd_printdd("error usb_driver_set_configuration: %d\n", |
| 395 | err); |
| 396 | /* Always return an error, so that we stop creating a device |
| 397 | that will just be destroyed and recreated with a new |
| 398 | configuration */ |
| 399 | return -ENODEV; |
| 400 | } else |
| 401 | snd_printk(KERN_INFO "usb-audio: Fast Track Pro config OK\n"); |
| 402 | |
| 403 | return 0; |
| 404 | } |
| 405 | |
| 406 | /* |
| 407 | * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely |
| 408 | * documented in the device's data sheet. |
| 409 | */ |
| 410 | static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value) |
| 411 | { |
| 412 | u8 buf[4]; |
| 413 | buf[0] = 0x20; |
| 414 | buf[1] = value & 0xff; |
| 415 | buf[2] = (value >> 8) & 0xff; |
| 416 | buf[3] = reg; |
| 417 | return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION, |
| 418 | USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT, |
| 419 | 0, 0, &buf, 4); |
| 420 | } |
| 421 | |
| 422 | static int snd_usb_cm106_boot_quirk(struct usb_device *dev) |
| 423 | { |
| 424 | /* |
| 425 | * Enable line-out driver mode, set headphone source to front |
| 426 | * channels, enable stereo mic. |
| 427 | */ |
| 428 | return snd_usb_cm106_write_int_reg(dev, 2, 0x8004); |
| 429 | } |
| 430 | |
| 431 | /* |
| 432 | * C-Media CM6206 is based on CM106 with two additional |
| 433 | * registers that are not documented in the data sheet. |
| 434 | * Values here are chosen based on sniffing USB traffic |
| 435 | * under Windows. |
| 436 | */ |
| 437 | static int snd_usb_cm6206_boot_quirk(struct usb_device *dev) |
| 438 | { |
| 439 | int err = 0, reg; |
| 440 | int val[] = {0x2004, 0x3000, 0xf800, 0x143f, 0x0000, 0x3000}; |
| 441 | |
| 442 | for (reg = 0; reg < ARRAY_SIZE(val); reg++) { |
| 443 | err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]); |
| 444 | if (err < 0) |
| 445 | return err; |
| 446 | } |
| 447 | |
| 448 | return err; |
| 449 | } |
| 450 | |
| 451 | /* |
| 452 | * Novation Twitch DJ controller |
| 453 | */ |
| 454 | static int snd_usb_twitch_boot_quirk(struct usb_device *dev) |
| 455 | { |
| 456 | /* preemptively set up the device because otherwise the |
| 457 | * raw MIDI endpoints are not active */ |
| 458 | usb_set_interface(dev, 0, 1); |
| 459 | return 0; |
| 460 | } |
| 461 | |
| 462 | /* |
| 463 | * This call will put the synth in "USB send" mode, i.e it will send MIDI |
| 464 | * messages through USB (this is disabled at startup). The synth will |
| 465 | * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB |
| 466 | * sign on its LCD. Values here are chosen based on sniffing USB traffic |
| 467 | * under Windows. |
| 468 | */ |
| 469 | static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev) |
| 470 | { |
| 471 | int err, actual_length; |
| 472 | |
| 473 | /* "midi send" enable */ |
| 474 | static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 }; |
| 475 | |
| 476 | void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL); |
| 477 | if (!buf) |
| 478 | return -ENOMEM; |
| 479 | err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf, |
| 480 | ARRAY_SIZE(seq), &actual_length, 1000); |
| 481 | kfree(buf); |
| 482 | if (err < 0) |
| 483 | return err; |
| 484 | |
| 485 | return 0; |
| 486 | } |
| 487 | |
| 488 | /* |
| 489 | * Some sound cards from Native Instruments are in fact compliant to the USB |
| 490 | * audio standard of version 2 and other approved USB standards, even though |
| 491 | * they come up as vendor-specific device when first connected. |
| 492 | * |
| 493 | * However, they can be told to come up with a new set of descriptors |
| 494 | * upon their next enumeration, and the interfaces announced by the new |
| 495 | * descriptors will then be handled by the kernel's class drivers. As the |
| 496 | * product ID will also change, no further checks are required. |
| 497 | */ |
| 498 | |
| 499 | static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev) |
| 500 | { |
| 501 | int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
| 502 | 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| 503 | 1, 0, NULL, 0, 1000); |
| 504 | |
| 505 | if (ret < 0) |
| 506 | return ret; |
| 507 | |
| 508 | usb_reset_device(dev); |
| 509 | |
| 510 | /* return -EAGAIN, so the creation of an audio interface for this |
| 511 | * temporary device is aborted. The device will reconnect with a |
| 512 | * new product ID */ |
| 513 | return -EAGAIN; |
| 514 | } |
| 515 | |
| 516 | static void mbox2_setup_48_24_magic(struct usb_device *dev) |
| 517 | { |
| 518 | u8 srate[3]; |
| 519 | u8 temp[12]; |
| 520 | |
| 521 | /* Choose 48000Hz permanently */ |
| 522 | srate[0] = 0x80; |
| 523 | srate[1] = 0xbb; |
| 524 | srate[2] = 0x00; |
| 525 | |
| 526 | /* Send the magic! */ |
| 527 | snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 528 | 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003); |
| 529 | snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), |
| 530 | 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003); |
| 531 | snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), |
| 532 | 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003); |
| 533 | snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), |
| 534 | 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003); |
| 535 | return; |
| 536 | } |
| 537 | |
| 538 | /* Digidesign Mbox 2 needs to load firmware onboard |
| 539 | * and driver must wait a few seconds for initialisation. |
| 540 | */ |
| 541 | |
| 542 | #define MBOX2_FIRMWARE_SIZE 646 |
| 543 | #define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */ |
| 544 | #define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */ |
| 545 | |
| 546 | static int snd_usb_mbox2_boot_quirk(struct usb_device *dev) |
| 547 | { |
| 548 | struct usb_host_config *config = dev->actconfig; |
| 549 | int err; |
| 550 | u8 bootresponse[0x12]; |
| 551 | int fwsize; |
| 552 | int count; |
| 553 | |
| 554 | fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength); |
| 555 | |
| 556 | if (fwsize != MBOX2_FIRMWARE_SIZE) { |
| 557 | snd_printk(KERN_ERR "usb-audio: Invalid firmware size=%d.\n", fwsize); |
| 558 | return -ENODEV; |
| 559 | } |
| 560 | |
| 561 | snd_printd("usb-audio: Sending Digidesign Mbox 2 boot sequence...\n"); |
| 562 | |
| 563 | count = 0; |
| 564 | bootresponse[0] = MBOX2_BOOT_LOADING; |
| 565 | while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) { |
| 566 | msleep(500); /* 0.5 second delay */ |
| 567 | snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), |
| 568 | /* Control magic - load onboard firmware */ |
| 569 | 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012); |
| 570 | if (bootresponse[0] == MBOX2_BOOT_READY) |
| 571 | break; |
| 572 | snd_printd("usb-audio: device not ready, resending boot sequence...\n"); |
| 573 | count++; |
| 574 | } |
| 575 | |
| 576 | if (bootresponse[0] != MBOX2_BOOT_READY) { |
| 577 | snd_printk(KERN_ERR "usb-audio: Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]); |
| 578 | return -ENODEV; |
| 579 | } |
| 580 | |
| 581 | snd_printdd("usb-audio: device initialised!\n"); |
| 582 | |
| 583 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, |
| 584 | &dev->descriptor, sizeof(dev->descriptor)); |
| 585 | config = dev->actconfig; |
| 586 | if (err < 0) |
| 587 | snd_printd("error usb_get_descriptor: %d\n", err); |
| 588 | |
| 589 | err = usb_reset_configuration(dev); |
| 590 | if (err < 0) |
| 591 | snd_printd("error usb_reset_configuration: %d\n", err); |
| 592 | snd_printdd("mbox2_boot: new boot length = %d\n", |
| 593 | le16_to_cpu(get_cfg_desc(config)->wTotalLength)); |
| 594 | |
| 595 | mbox2_setup_48_24_magic(dev); |
| 596 | |
| 597 | snd_printk(KERN_INFO "usb-audio: Digidesign Mbox 2: 24bit 48kHz"); |
| 598 | |
| 599 | return 0; /* Successful boot */ |
| 600 | } |
| 601 | |
| 602 | /* |
| 603 | * Setup quirks |
| 604 | */ |
| 605 | #define MAUDIO_SET 0x01 /* parse device_setup */ |
| 606 | #define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */ |
| 607 | #define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */ |
| 608 | #define MAUDIO_SET_96K 0x04 /* 48-96KHz rate if set, 8-48KHz otherwise */ |
| 609 | #define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */ |
| 610 | #define MAUDIO_SET_DI 0x10 /* enable Digital Input */ |
| 611 | #define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */ |
| 612 | #define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48KHz+Digital Input */ |
| 613 | #define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48KHz+No Digital Input */ |
| 614 | #define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48KHz+Digital Input */ |
| 615 | #define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48KHz+No Digital Input */ |
| 616 | |
| 617 | static int quattro_skip_setting_quirk(struct snd_usb_audio *chip, |
| 618 | int iface, int altno) |
| 619 | { |
| 620 | /* Reset ALL ifaces to 0 altsetting. |
| 621 | * Call it for every possible altsetting of every interface. |
| 622 | */ |
| 623 | usb_set_interface(chip->dev, iface, 0); |
| 624 | if (chip->setup & MAUDIO_SET) { |
| 625 | if (chip->setup & MAUDIO_SET_COMPATIBLE) { |
| 626 | if (iface != 1 && iface != 2) |
| 627 | return 1; /* skip all interfaces but 1 and 2 */ |
| 628 | } else { |
| 629 | unsigned int mask; |
| 630 | if (iface == 1 || iface == 2) |
| 631 | return 1; /* skip interfaces 1 and 2 */ |
| 632 | if ((chip->setup & MAUDIO_SET_96K) && altno != 1) |
| 633 | return 1; /* skip this altsetting */ |
| 634 | mask = chip->setup & MAUDIO_SET_MASK; |
| 635 | if (mask == MAUDIO_SET_24B_48K_DI && altno != 2) |
| 636 | return 1; /* skip this altsetting */ |
| 637 | if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3) |
| 638 | return 1; /* skip this altsetting */ |
| 639 | if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4) |
| 640 | return 1; /* skip this altsetting */ |
| 641 | } |
| 642 | } |
| 643 | snd_printdd(KERN_INFO |
| 644 | "using altsetting %d for interface %d config %d\n", |
| 645 | altno, iface, chip->setup); |
| 646 | return 0; /* keep this altsetting */ |
| 647 | } |
| 648 | |
| 649 | static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip, |
| 650 | int iface, |
| 651 | int altno) |
| 652 | { |
| 653 | /* Reset ALL ifaces to 0 altsetting. |
| 654 | * Call it for every possible altsetting of every interface. |
| 655 | */ |
| 656 | usb_set_interface(chip->dev, iface, 0); |
| 657 | |
| 658 | if (chip->setup & MAUDIO_SET) { |
| 659 | unsigned int mask; |
| 660 | if ((chip->setup & MAUDIO_SET_DTS) && altno != 6) |
| 661 | return 1; /* skip this altsetting */ |
| 662 | if ((chip->setup & MAUDIO_SET_96K) && altno != 1) |
| 663 | return 1; /* skip this altsetting */ |
| 664 | mask = chip->setup & MAUDIO_SET_MASK; |
| 665 | if (mask == MAUDIO_SET_24B_48K_DI && altno != 2) |
| 666 | return 1; /* skip this altsetting */ |
| 667 | if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3) |
| 668 | return 1; /* skip this altsetting */ |
| 669 | if (mask == MAUDIO_SET_16B_48K_DI && altno != 4) |
| 670 | return 1; /* skip this altsetting */ |
| 671 | if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5) |
| 672 | return 1; /* skip this altsetting */ |
| 673 | } |
| 674 | |
| 675 | return 0; /* keep this altsetting */ |
| 676 | } |
| 677 | |
| 678 | static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip, |
| 679 | int iface, int altno) |
| 680 | { |
| 681 | /* Reset ALL ifaces to 0 altsetting. |
| 682 | * Call it for every possible altsetting of every interface. |
| 683 | */ |
| 684 | usb_set_interface(chip->dev, iface, 0); |
| 685 | |
| 686 | /* possible configuration where both inputs and only one output is |
| 687 | *used is not supported by the current setup |
| 688 | */ |
| 689 | if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) { |
| 690 | if (chip->setup & MAUDIO_SET_96K) { |
| 691 | if (altno != 3 && altno != 6) |
| 692 | return 1; |
| 693 | } else if (chip->setup & MAUDIO_SET_DI) { |
| 694 | if (iface == 4) |
| 695 | return 1; /* no analog input */ |
| 696 | if (altno != 2 && altno != 5) |
| 697 | return 1; /* enable only altsets 2 and 5 */ |
| 698 | } else { |
| 699 | if (iface == 5) |
| 700 | return 1; /* disable digialt input */ |
| 701 | if (altno != 2 && altno != 5) |
| 702 | return 1; /* enalbe only altsets 2 and 5 */ |
| 703 | } |
| 704 | } else { |
| 705 | /* keep only 16-Bit mode */ |
| 706 | if (altno != 1) |
| 707 | return 1; |
| 708 | } |
| 709 | |
| 710 | snd_printdd(KERN_INFO |
| 711 | "using altsetting %d for interface %d config %d\n", |
| 712 | altno, iface, chip->setup); |
| 713 | return 0; /* keep this altsetting */ |
| 714 | } |
| 715 | |
| 716 | int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip, |
| 717 | int iface, |
| 718 | int altno) |
| 719 | { |
| 720 | /* audiophile usb: skip altsets incompatible with device_setup */ |
| 721 | if (chip->usb_id == USB_ID(0x0763, 0x2003)) |
| 722 | return audiophile_skip_setting_quirk(chip, iface, altno); |
| 723 | /* quattro usb: skip altsets incompatible with device_setup */ |
| 724 | if (chip->usb_id == USB_ID(0x0763, 0x2001)) |
| 725 | return quattro_skip_setting_quirk(chip, iface, altno); |
| 726 | /* fasttrackpro usb: skip altsets incompatible with device_setup */ |
| 727 | if (chip->usb_id == USB_ID(0x0763, 0x2012)) |
| 728 | return fasttrackpro_skip_setting_quirk(chip, iface, altno); |
| 729 | |
| 730 | return 0; |
| 731 | } |
| 732 | |
| 733 | int snd_usb_apply_boot_quirk(struct usb_device *dev, |
| 734 | struct usb_interface *intf, |
| 735 | const struct snd_usb_audio_quirk *quirk) |
| 736 | { |
| 737 | u32 id = USB_ID(le16_to_cpu(dev->descriptor.idVendor), |
| 738 | le16_to_cpu(dev->descriptor.idProduct)); |
| 739 | |
| 740 | switch (id) { |
| 741 | case USB_ID(0x041e, 0x3000): |
| 742 | /* SB Extigy needs special boot-up sequence */ |
| 743 | /* if more models come, this will go to the quirk list. */ |
| 744 | return snd_usb_extigy_boot_quirk(dev, intf); |
| 745 | |
| 746 | case USB_ID(0x041e, 0x3020): |
| 747 | /* SB Audigy 2 NX needs its own boot-up magic, too */ |
| 748 | return snd_usb_audigy2nx_boot_quirk(dev); |
| 749 | |
| 750 | case USB_ID(0x10f5, 0x0200): |
| 751 | /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */ |
| 752 | return snd_usb_cm106_boot_quirk(dev); |
| 753 | |
| 754 | case USB_ID(0x0d8c, 0x0102): |
| 755 | /* C-Media CM6206 / CM106-Like Sound Device */ |
| 756 | case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */ |
| 757 | return snd_usb_cm6206_boot_quirk(dev); |
| 758 | |
| 759 | case USB_ID(0x0dba, 0x3000): |
| 760 | /* Digidesign Mbox 2 */ |
| 761 | return snd_usb_mbox2_boot_quirk(dev); |
| 762 | |
| 763 | case USB_ID(0x1235, 0x0018): |
| 764 | /* Focusrite Novation Twitch */ |
| 765 | return snd_usb_twitch_boot_quirk(dev); |
| 766 | |
| 767 | case USB_ID(0x133e, 0x0815): |
| 768 | /* Access Music VirusTI Desktop */ |
| 769 | return snd_usb_accessmusic_boot_quirk(dev); |
| 770 | |
| 771 | case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */ |
| 772 | case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */ |
| 773 | case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */ |
| 774 | return snd_usb_nativeinstruments_boot_quirk(dev); |
| 775 | case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */ |
| 776 | return snd_usb_fasttrackpro_boot_quirk(dev); |
| 777 | } |
| 778 | |
| 779 | return 0; |
| 780 | } |
| 781 | |
| 782 | /* |
| 783 | * check if the device uses big-endian samples |
| 784 | */ |
| 785 | int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp) |
| 786 | { |
| 787 | /* it depends on altsetting whether the device is big-endian or not */ |
| 788 | switch (chip->usb_id) { |
| 789 | case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */ |
| 790 | if (fp->altsetting == 2 || fp->altsetting == 3 || |
| 791 | fp->altsetting == 5 || fp->altsetting == 6) |
| 792 | return 1; |
| 793 | break; |
| 794 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ |
| 795 | if (chip->setup == 0x00 || |
| 796 | fp->altsetting == 1 || fp->altsetting == 2 || |
| 797 | fp->altsetting == 3) |
| 798 | return 1; |
| 799 | break; |
| 800 | case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */ |
| 801 | if (fp->altsetting == 2 || fp->altsetting == 3 || |
| 802 | fp->altsetting == 5 || fp->altsetting == 6) |
| 803 | return 1; |
| 804 | break; |
| 805 | } |
| 806 | return 0; |
| 807 | } |
| 808 | |
| 809 | /* |
| 810 | * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device, |
| 811 | * not for interface. |
| 812 | */ |
| 813 | |
| 814 | enum { |
| 815 | EMU_QUIRK_SR_44100HZ = 0, |
| 816 | EMU_QUIRK_SR_48000HZ, |
| 817 | EMU_QUIRK_SR_88200HZ, |
| 818 | EMU_QUIRK_SR_96000HZ, |
| 819 | EMU_QUIRK_SR_176400HZ, |
| 820 | EMU_QUIRK_SR_192000HZ |
| 821 | }; |
| 822 | |
| 823 | static void set_format_emu_quirk(struct snd_usb_substream *subs, |
| 824 | struct audioformat *fmt) |
| 825 | { |
| 826 | unsigned char emu_samplerate_id = 0; |
| 827 | |
| 828 | /* When capture is active |
| 829 | * sample rate shouldn't be changed |
| 830 | * by playback substream |
| 831 | */ |
| 832 | if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { |
| 833 | if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].interface != -1) |
| 834 | return; |
| 835 | } |
| 836 | |
| 837 | switch (fmt->rate_min) { |
| 838 | case 48000: |
| 839 | emu_samplerate_id = EMU_QUIRK_SR_48000HZ; |
| 840 | break; |
| 841 | case 88200: |
| 842 | emu_samplerate_id = EMU_QUIRK_SR_88200HZ; |
| 843 | break; |
| 844 | case 96000: |
| 845 | emu_samplerate_id = EMU_QUIRK_SR_96000HZ; |
| 846 | break; |
| 847 | case 176400: |
| 848 | emu_samplerate_id = EMU_QUIRK_SR_176400HZ; |
| 849 | break; |
| 850 | case 192000: |
| 851 | emu_samplerate_id = EMU_QUIRK_SR_192000HZ; |
| 852 | break; |
| 853 | default: |
| 854 | emu_samplerate_id = EMU_QUIRK_SR_44100HZ; |
| 855 | break; |
| 856 | } |
| 857 | snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id); |
| 858 | subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0; |
| 859 | } |
| 860 | |
| 861 | void snd_usb_set_format_quirk(struct snd_usb_substream *subs, |
| 862 | struct audioformat *fmt) |
| 863 | { |
| 864 | switch (subs->stream->chip->usb_id) { |
| 865 | case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ |
| 866 | case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */ |
| 867 | case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */ |
| 868 | case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */ |
| 869 | set_format_emu_quirk(subs, fmt); |
| 870 | break; |
| 871 | } |
| 872 | } |
| 873 | |
| 874 | void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep) |
| 875 | { |
| 876 | /* |
| 877 | * "Playback Design" products send bogus feedback data at the start |
| 878 | * of the stream. Ignore them. |
| 879 | */ |
| 880 | if ((le16_to_cpu(ep->chip->dev->descriptor.idVendor) == 0x23ba) && |
| 881 | ep->type == SND_USB_ENDPOINT_TYPE_SYNC) |
| 882 | ep->skip_packets = 4; |
| 883 | |
| 884 | /* |
| 885 | * M-Audio Fast Track C400/C600 - when packets are not skipped, real |
| 886 | * world latency varies by approx. +/- 50 frames (at 96KHz) each time |
| 887 | * the stream is (re)started. When skipping packets 16 at endpoint |
| 888 | * start up, the real world latency is stable within +/- 1 frame (also |
| 889 | * across power cycles). |
| 890 | */ |
| 891 | if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) || |
| 892 | ep->chip->usb_id == USB_ID(0x0763, 0x2031)) && |
| 893 | ep->type == SND_USB_ENDPOINT_TYPE_DATA) |
| 894 | ep->skip_packets = 16; |
| 895 | } |
| 896 | |
| 897 | void snd_usb_set_interface_quirk(struct usb_device *dev) |
| 898 | { |
| 899 | /* |
| 900 | * "Playback Design" products need a 50ms delay after setting the |
| 901 | * USB interface. |
| 902 | */ |
| 903 | switch (le16_to_cpu(dev->descriptor.idVendor)) { |
| 904 | case 0x23ba: /* Playback Design */ |
| 905 | case 0x0644: /* TEAC Corp. */ |
| 906 | mdelay(50); |
| 907 | break; |
| 908 | } |
| 909 | } |
| 910 | |
| 911 | void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, |
| 912 | __u8 request, __u8 requesttype, __u16 value, |
| 913 | __u16 index, void *data, __u16 size) |
| 914 | { |
| 915 | /* |
| 916 | * "Playback Design" products need a 20ms delay after each |
| 917 | * class compliant request |
| 918 | */ |
| 919 | if ((le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) && |
| 920 | (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) |
| 921 | mdelay(20); |
| 922 | |
| 923 | /* |
| 924 | * "TEAC Corp." products need a 20ms delay after each |
| 925 | * class compliant request |
| 926 | */ |
| 927 | if ((le16_to_cpu(dev->descriptor.idVendor) == 0x0644) && |
| 928 | (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) |
| 929 | mdelay(20); |
| 930 | |
| 931 | /* Marantz/Denon devices with USB DAC functionality need a delay |
| 932 | * after each class compliant request |
| 933 | */ |
| 934 | if ((le16_to_cpu(dev->descriptor.idVendor) == 0x154e) && |
| 935 | (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS) { |
| 936 | |
| 937 | switch (le16_to_cpu(dev->descriptor.idProduct)) { |
| 938 | case 0x3005: /* Marantz HD-DAC1 */ |
| 939 | case 0x3006: /* Marantz SA-14S1 */ |
| 940 | mdelay(20); |
| 941 | break; |
| 942 | } |
| 943 | } |
| 944 | } |
| 945 | |
| 946 | /* |
| 947 | * snd_usb_interface_dsd_format_quirks() is called from format.c to |
| 948 | * augment the PCM format bit-field for DSD types. The UAC standards |
| 949 | * don't have a designated bit field to denote DSD-capable interfaces, |
| 950 | * hence all hardware that is known to support this format has to be |
| 951 | * listed here. |
| 952 | */ |
| 953 | u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip, |
| 954 | struct audioformat *fp, |
| 955 | unsigned int sample_bytes) |
| 956 | { |
| 957 | /* Playback Designs */ |
| 958 | if (le16_to_cpu(chip->dev->descriptor.idVendor) == 0x23ba) { |
| 959 | switch (fp->altsetting) { |
| 960 | case 1: |
| 961 | fp->dsd_dop = true; |
| 962 | return SNDRV_PCM_FMTBIT_DSD_U16_LE; |
| 963 | case 2: |
| 964 | fp->dsd_bitrev = true; |
| 965 | return SNDRV_PCM_FMTBIT_DSD_U8; |
| 966 | case 3: |
| 967 | fp->dsd_bitrev = true; |
| 968 | return SNDRV_PCM_FMTBIT_DSD_U16_LE; |
| 969 | } |
| 970 | } |
| 971 | |
| 972 | return 0; |
| 973 | } |