1 /* 2 * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de> 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License as published by the 6 * Free Software Foundation; either version 2 of the License, or (at your 7 * option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 11 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software Foundation, 16 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 */ 18 19 #include <linux/slab.h> 20 #include <linux/usb.h> 21 #include <linux/usb/audio.h> 22 #include <linux/module.h> 23 #include <sound/core.h> 24 #include <sound/hwdep.h> 25 #include <sound/pcm.h> 26 #include <sound/initval.h> 27 #define MODNAME "US122L" 28 #include "usb_stream.c" 29 #include "../usbaudio.h" 30 #include "../midi.h" 31 #include "us122l.h" 32 33 MODULE_AUTHOR("Karsten Wiese <fzu@wemgehoertderstaat.de>"); 34 MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5"); 35 MODULE_LICENSE("GPL"); 36 37 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ 38 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ 39 /* Enable this card */ 40 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 41 42 module_param_array(index, int, NULL, 0444); 43 MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS"."); 44 module_param_array(id, charp, NULL, 0444); 45 MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS"."); 46 module_param_array(enable, bool, NULL, 0444); 47 MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS"."); 48 49 static int snd_us122l_card_used[SNDRV_CARDS]; 50 51 52 static int us122l_create_usbmidi(struct snd_card *card) 53 { 54 static struct snd_usb_midi_endpoint_info quirk_data = { 55 .out_ep = 4, 56 .in_ep = 3, 57 .out_cables = 0x001, 58 .in_cables = 0x001 59 }; 60 static struct snd_usb_audio_quirk quirk = { 61 .vendor_name = "US122L", 62 .product_name = NAME_ALLCAPS, 63 .ifnum = 1, 64 .type = QUIRK_MIDI_US122L, 65 .data = &quirk_data 66 }; 67 struct usb_device *dev = US122L(card)->dev; 68 struct usb_interface *iface = usb_ifnum_to_if(dev, 1); 69 70 return snd_usbmidi_create(card, iface, 71 &US122L(card)->midi_list, &quirk); 72 } 73 74 static int us144_create_usbmidi(struct snd_card *card) 75 { 76 static struct snd_usb_midi_endpoint_info quirk_data = { 77 .out_ep = 4, 78 .in_ep = 3, 79 .out_cables = 0x001, 80 .in_cables = 0x001 81 }; 82 static struct snd_usb_audio_quirk quirk = { 83 .vendor_name = "US144", 84 .product_name = NAME_ALLCAPS, 85 .ifnum = 0, 86 .type = QUIRK_MIDI_US122L, 87 .data = &quirk_data 88 }; 89 struct usb_device *dev = US122L(card)->dev; 90 struct usb_interface *iface = usb_ifnum_to_if(dev, 0); 91 92 return snd_usbmidi_create(card, iface, 93 &US122L(card)->midi_list, &quirk); 94 } 95 96 /* 97 * Wrapper for usb_control_msg(). 98 * Allocates a temp buffer to prevent dmaing from/to the stack. 99 */ 100 static int us122l_ctl_msg(struct usb_device *dev, unsigned int pipe, 101 __u8 request, __u8 requesttype, 102 __u16 value, __u16 index, void *data, 103 __u16 size, int timeout) 104 { 105 int err; 106 void *buf = NULL; 107 108 if (size > 0) { 109 buf = kmemdup(data, size, GFP_KERNEL); 110 if (!buf) 111 return -ENOMEM; 112 } 113 err = usb_control_msg(dev, pipe, request, requesttype, 114 value, index, buf, size, timeout); 115 if (size > 0) { 116 memcpy(data, buf, size); 117 kfree(buf); 118 } 119 return err; 120 } 121 122 static void pt_info_set(struct usb_device *dev, u8 v) 123 { 124 int ret; 125 126 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 127 'I', 128 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 129 v, 0, NULL, 0, 1000); 130 snd_printdd(KERN_DEBUG "%i\n", ret); 131 } 132 133 static void usb_stream_hwdep_vm_open(struct vm_area_struct *area) 134 { 135 struct us122l *us122l = area->vm_private_data; 136 atomic_inc(&us122l->mmap_count); 137 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); 138 } 139 140 static int usb_stream_hwdep_vm_fault(struct vm_area_struct *area, 141 struct vm_fault *vmf) 142 { 143 unsigned long offset; 144 struct page *page; 145 void *vaddr; 146 struct us122l *us122l = area->vm_private_data; 147 struct usb_stream *s; 148 149 mutex_lock(&us122l->mutex); 150 s = us122l->sk.s; 151 if (!s) 152 goto unlock; 153 154 offset = vmf->pgoff << PAGE_SHIFT; 155 if (offset < PAGE_ALIGN(s->read_size)) 156 vaddr = (char *)s + offset; 157 else { 158 offset -= PAGE_ALIGN(s->read_size); 159 if (offset >= PAGE_ALIGN(s->write_size)) 160 goto unlock; 161 162 vaddr = us122l->sk.write_page + offset; 163 } 164 page = virt_to_page(vaddr); 165 166 get_page(page); 167 mutex_unlock(&us122l->mutex); 168 169 vmf->page = page; 170 171 return 0; 172 unlock: 173 mutex_unlock(&us122l->mutex); 174 return VM_FAULT_SIGBUS; 175 } 176 177 static void usb_stream_hwdep_vm_close(struct vm_area_struct *area) 178 { 179 struct us122l *us122l = area->vm_private_data; 180 atomic_dec(&us122l->mmap_count); 181 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); 182 } 183 184 static const struct vm_operations_struct usb_stream_hwdep_vm_ops = { 185 .open = usb_stream_hwdep_vm_open, 186 .fault = usb_stream_hwdep_vm_fault, 187 .close = usb_stream_hwdep_vm_close, 188 }; 189 190 191 static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file) 192 { 193 struct us122l *us122l = hw->private_data; 194 struct usb_interface *iface; 195 snd_printdd(KERN_DEBUG "%p %p\n", hw, file); 196 if (hw->used >= 2) 197 return -EBUSY; 198 199 if (!us122l->first) 200 us122l->first = file; 201 202 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 203 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 204 iface = usb_ifnum_to_if(us122l->dev, 0); 205 usb_autopm_get_interface(iface); 206 } 207 iface = usb_ifnum_to_if(us122l->dev, 1); 208 usb_autopm_get_interface(iface); 209 return 0; 210 } 211 212 static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file) 213 { 214 struct us122l *us122l = hw->private_data; 215 struct usb_interface *iface; 216 snd_printdd(KERN_DEBUG "%p %p\n", hw, file); 217 218 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 219 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 220 iface = usb_ifnum_to_if(us122l->dev, 0); 221 usb_autopm_put_interface(iface); 222 } 223 iface = usb_ifnum_to_if(us122l->dev, 1); 224 usb_autopm_put_interface(iface); 225 if (us122l->first == file) 226 us122l->first = NULL; 227 mutex_lock(&us122l->mutex); 228 if (us122l->master == file) 229 us122l->master = us122l->slave; 230 231 us122l->slave = NULL; 232 mutex_unlock(&us122l->mutex); 233 return 0; 234 } 235 236 static int usb_stream_hwdep_mmap(struct snd_hwdep *hw, 237 struct file *filp, struct vm_area_struct *area) 238 { 239 unsigned long size = area->vm_end - area->vm_start; 240 struct us122l *us122l = hw->private_data; 241 unsigned long offset; 242 struct usb_stream *s; 243 int err = 0; 244 bool read; 245 246 offset = area->vm_pgoff << PAGE_SHIFT; 247 mutex_lock(&us122l->mutex); 248 s = us122l->sk.s; 249 read = offset < s->read_size; 250 if (read && area->vm_flags & VM_WRITE) { 251 err = -EPERM; 252 goto out; 253 } 254 snd_printdd(KERN_DEBUG "%lu %u\n", size, 255 read ? s->read_size : s->write_size); 256 /* if userspace tries to mmap beyond end of our buffer, fail */ 257 if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) { 258 snd_printk(KERN_WARNING "%lu > %u\n", size, 259 read ? s->read_size : s->write_size); 260 err = -EINVAL; 261 goto out; 262 } 263 264 area->vm_ops = &usb_stream_hwdep_vm_ops; 265 area->vm_flags |= VM_DONTDUMP; 266 if (!read) 267 area->vm_flags |= VM_DONTEXPAND; 268 area->vm_private_data = us122l; 269 atomic_inc(&us122l->mmap_count); 270 out: 271 mutex_unlock(&us122l->mutex); 272 return err; 273 } 274 275 static unsigned int usb_stream_hwdep_poll(struct snd_hwdep *hw, 276 struct file *file, poll_table *wait) 277 { 278 struct us122l *us122l = hw->private_data; 279 unsigned *polled; 280 unsigned int mask; 281 282 poll_wait(file, &us122l->sk.sleep, wait); 283 284 mask = POLLIN | POLLOUT | POLLWRNORM | POLLERR; 285 if (mutex_trylock(&us122l->mutex)) { 286 struct usb_stream *s = us122l->sk.s; 287 if (s && s->state == usb_stream_ready) { 288 if (us122l->first == file) 289 polled = &s->periods_polled; 290 else 291 polled = &us122l->second_periods_polled; 292 if (*polled != s->periods_done) { 293 *polled = s->periods_done; 294 mask = POLLIN | POLLOUT | POLLWRNORM; 295 } else 296 mask = 0; 297 } 298 mutex_unlock(&us122l->mutex); 299 } 300 return mask; 301 } 302 303 static void us122l_stop(struct us122l *us122l) 304 { 305 struct list_head *p; 306 list_for_each(p, &us122l->midi_list) 307 snd_usbmidi_input_stop(p); 308 309 usb_stream_stop(&us122l->sk); 310 usb_stream_free(&us122l->sk); 311 } 312 313 static int us122l_set_sample_rate(struct usb_device *dev, int rate) 314 { 315 unsigned int ep = 0x81; 316 unsigned char data[3]; 317 int err; 318 319 data[0] = rate; 320 data[1] = rate >> 8; 321 data[2] = rate >> 16; 322 err = us122l_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, 323 USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, 324 UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000); 325 if (err < 0) 326 snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n", 327 dev->devnum, rate, ep); 328 return err; 329 } 330 331 static bool us122l_start(struct us122l *us122l, 332 unsigned rate, unsigned period_frames) 333 { 334 struct list_head *p; 335 int err; 336 unsigned use_packsize = 0; 337 bool success = false; 338 339 if (us122l->dev->speed == USB_SPEED_HIGH) { 340 /* The us-122l's descriptor defaults to iso max_packsize 78, 341 which isn't needed for samplerates <= 48000. 342 Lets save some memory: 343 */ 344 switch (rate) { 345 case 44100: 346 use_packsize = 36; 347 break; 348 case 48000: 349 use_packsize = 42; 350 break; 351 case 88200: 352 use_packsize = 72; 353 break; 354 } 355 } 356 if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2, 357 rate, use_packsize, period_frames, 6)) 358 goto out; 359 360 err = us122l_set_sample_rate(us122l->dev, rate); 361 if (err < 0) { 362 us122l_stop(us122l); 363 snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); 364 goto out; 365 } 366 err = usb_stream_start(&us122l->sk); 367 if (err < 0) { 368 us122l_stop(us122l); 369 snd_printk(KERN_ERR "us122l_start error %i \n", err); 370 goto out; 371 } 372 list_for_each(p, &us122l->midi_list) 373 snd_usbmidi_input_start(p); 374 success = true; 375 out: 376 return success; 377 } 378 379 static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, 380 unsigned cmd, unsigned long arg) 381 { 382 struct usb_stream_config *cfg; 383 struct us122l *us122l = hw->private_data; 384 struct usb_stream *s; 385 unsigned min_period_frames; 386 int err = 0; 387 bool high_speed; 388 389 if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS) 390 return -ENOTTY; 391 392 cfg = memdup_user((void *)arg, sizeof(*cfg)); 393 if (IS_ERR(cfg)) 394 return PTR_ERR(cfg); 395 396 if (cfg->version != USB_STREAM_INTERFACE_VERSION) { 397 err = -ENXIO; 398 goto free; 399 } 400 high_speed = us122l->dev->speed == USB_SPEED_HIGH; 401 if ((cfg->sample_rate != 44100 && cfg->sample_rate != 48000 && 402 (!high_speed || 403 (cfg->sample_rate != 88200 && cfg->sample_rate != 96000))) || 404 cfg->frame_size != 6 || 405 cfg->period_frames > 0x3000) { 406 err = -EINVAL; 407 goto free; 408 } 409 switch (cfg->sample_rate) { 410 case 44100: 411 min_period_frames = 48; 412 break; 413 case 48000: 414 min_period_frames = 52; 415 break; 416 default: 417 min_period_frames = 104; 418 break; 419 } 420 if (!high_speed) 421 min_period_frames <<= 1; 422 if (cfg->period_frames < min_period_frames) { 423 err = -EINVAL; 424 goto free; 425 } 426 427 snd_power_wait(hw->card, SNDRV_CTL_POWER_D0); 428 429 mutex_lock(&us122l->mutex); 430 s = us122l->sk.s; 431 if (!us122l->master) 432 us122l->master = file; 433 else if (us122l->master != file) { 434 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg))) { 435 err = -EIO; 436 goto unlock; 437 } 438 us122l->slave = file; 439 } 440 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg)) || 441 s->state == usb_stream_xrun) { 442 us122l_stop(us122l); 443 if (!us122l_start(us122l, cfg->sample_rate, cfg->period_frames)) 444 err = -EIO; 445 else 446 err = 1; 447 } 448 unlock: 449 mutex_unlock(&us122l->mutex); 450 free: 451 kfree(cfg); 452 wake_up_all(&us122l->sk.sleep); 453 return err; 454 } 455 456 #define SND_USB_STREAM_ID "USB STREAM" 457 static int usb_stream_hwdep_new(struct snd_card *card) 458 { 459 int err; 460 struct snd_hwdep *hw; 461 struct usb_device *dev = US122L(card)->dev; 462 463 err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw); 464 if (err < 0) 465 return err; 466 467 hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM; 468 hw->private_data = US122L(card); 469 hw->ops.open = usb_stream_hwdep_open; 470 hw->ops.release = usb_stream_hwdep_release; 471 hw->ops.ioctl = usb_stream_hwdep_ioctl; 472 hw->ops.ioctl_compat = usb_stream_hwdep_ioctl; 473 hw->ops.mmap = usb_stream_hwdep_mmap; 474 hw->ops.poll = usb_stream_hwdep_poll; 475 476 sprintf(hw->name, "/proc/bus/usb/%03d/%03d/hwdeppcm", 477 dev->bus->busnum, dev->devnum); 478 return 0; 479 } 480 481 482 static bool us122l_create_card(struct snd_card *card) 483 { 484 int err; 485 struct us122l *us122l = US122L(card); 486 487 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 488 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 489 err = usb_set_interface(us122l->dev, 0, 1); 490 if (err) { 491 snd_printk(KERN_ERR "usb_set_interface error \n"); 492 return false; 493 } 494 } 495 err = usb_set_interface(us122l->dev, 1, 1); 496 if (err) { 497 snd_printk(KERN_ERR "usb_set_interface error \n"); 498 return false; 499 } 500 501 pt_info_set(us122l->dev, 0x11); 502 pt_info_set(us122l->dev, 0x10); 503 504 if (!us122l_start(us122l, 44100, 256)) 505 return false; 506 507 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 508 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) 509 err = us144_create_usbmidi(card); 510 else 511 err = us122l_create_usbmidi(card); 512 if (err < 0) { 513 snd_printk(KERN_ERR "us122l_create_usbmidi error %i \n", err); 514 us122l_stop(us122l); 515 return false; 516 } 517 err = usb_stream_hwdep_new(card); 518 if (err < 0) { 519 /* release the midi resources */ 520 struct list_head *p; 521 list_for_each(p, &us122l->midi_list) 522 snd_usbmidi_disconnect(p); 523 524 us122l_stop(us122l); 525 return false; 526 } 527 return true; 528 } 529 530 static void snd_us122l_free(struct snd_card *card) 531 { 532 struct us122l *us122l = US122L(card); 533 int index = us122l->card_index; 534 if (index >= 0 && index < SNDRV_CARDS) 535 snd_us122l_card_used[index] = 0; 536 } 537 538 static int usx2y_create_card(struct usb_device *device, 539 struct usb_interface *intf, 540 struct snd_card **cardp) 541 { 542 int dev; 543 struct snd_card *card; 544 int err; 545 546 for (dev = 0; dev < SNDRV_CARDS; ++dev) 547 if (enable[dev] && !snd_us122l_card_used[dev]) 548 break; 549 if (dev >= SNDRV_CARDS) 550 return -ENODEV; 551 err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE, 552 sizeof(struct us122l), &card); 553 if (err < 0) 554 return err; 555 snd_us122l_card_used[US122L(card)->card_index = dev] = 1; 556 card->private_free = snd_us122l_free; 557 US122L(card)->dev = device; 558 mutex_init(&US122L(card)->mutex); 559 init_waitqueue_head(&US122L(card)->sk.sleep); 560 INIT_LIST_HEAD(&US122L(card)->midi_list); 561 strcpy(card->driver, "USB "NAME_ALLCAPS""); 562 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); 563 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", 564 card->shortname, 565 le16_to_cpu(device->descriptor.idVendor), 566 le16_to_cpu(device->descriptor.idProduct), 567 0, 568 US122L(card)->dev->bus->busnum, 569 US122L(card)->dev->devnum 570 ); 571 *cardp = card; 572 return 0; 573 } 574 575 static int us122l_usb_probe(struct usb_interface *intf, 576 const struct usb_device_id *device_id, 577 struct snd_card **cardp) 578 { 579 struct usb_device *device = interface_to_usbdev(intf); 580 struct snd_card *card; 581 int err; 582 583 err = usx2y_create_card(device, intf, &card); 584 if (err < 0) 585 return err; 586 587 if (!us122l_create_card(card)) { 588 snd_card_free(card); 589 return -EINVAL; 590 } 591 592 err = snd_card_register(card); 593 if (err < 0) { 594 snd_card_free(card); 595 return err; 596 } 597 598 usb_get_intf(usb_ifnum_to_if(device, 0)); 599 usb_get_dev(device); 600 *cardp = card; 601 return 0; 602 } 603 604 static int snd_us122l_probe(struct usb_interface *intf, 605 const struct usb_device_id *id) 606 { 607 struct usb_device *device = interface_to_usbdev(intf); 608 struct snd_card *card; 609 int err; 610 611 if ((device->descriptor.idProduct == USB_ID_US144 || 612 device->descriptor.idProduct == USB_ID_US144MKII) 613 && device->speed == USB_SPEED_HIGH) { 614 snd_printk(KERN_ERR "disable ehci-hcd to run US-144 \n"); 615 return -ENODEV; 616 } 617 618 snd_printdd(KERN_DEBUG"%p:%i\n", 619 intf, intf->cur_altsetting->desc.bInterfaceNumber); 620 if (intf->cur_altsetting->desc.bInterfaceNumber != 1) 621 return 0; 622 623 err = us122l_usb_probe(usb_get_intf(intf), id, &card); 624 if (err < 0) { 625 usb_put_intf(intf); 626 return err; 627 } 628 629 usb_set_intfdata(intf, card); 630 return 0; 631 } 632 633 static void snd_us122l_disconnect(struct usb_interface *intf) 634 { 635 struct snd_card *card; 636 struct us122l *us122l; 637 struct list_head *p; 638 639 card = usb_get_intfdata(intf); 640 if (!card) 641 return; 642 643 snd_card_disconnect(card); 644 645 us122l = US122L(card); 646 mutex_lock(&us122l->mutex); 647 us122l_stop(us122l); 648 mutex_unlock(&us122l->mutex); 649 650 /* release the midi resources */ 651 list_for_each(p, &us122l->midi_list) { 652 snd_usbmidi_disconnect(p); 653 } 654 655 usb_put_intf(usb_ifnum_to_if(us122l->dev, 0)); 656 usb_put_intf(usb_ifnum_to_if(us122l->dev, 1)); 657 usb_put_dev(us122l->dev); 658 659 while (atomic_read(&us122l->mmap_count)) 660 msleep(500); 661 662 snd_card_free(card); 663 } 664 665 static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message) 666 { 667 struct snd_card *card; 668 struct us122l *us122l; 669 struct list_head *p; 670 671 card = usb_get_intfdata(intf); 672 if (!card) 673 return 0; 674 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 675 676 us122l = US122L(card); 677 if (!us122l) 678 return 0; 679 680 list_for_each(p, &us122l->midi_list) 681 snd_usbmidi_input_stop(p); 682 683 mutex_lock(&us122l->mutex); 684 usb_stream_stop(&us122l->sk); 685 mutex_unlock(&us122l->mutex); 686 687 return 0; 688 } 689 690 static int snd_us122l_resume(struct usb_interface *intf) 691 { 692 struct snd_card *card; 693 struct us122l *us122l; 694 struct list_head *p; 695 int err; 696 697 card = usb_get_intfdata(intf); 698 if (!card) 699 return 0; 700 701 us122l = US122L(card); 702 if (!us122l) 703 return 0; 704 705 mutex_lock(&us122l->mutex); 706 /* needed, doesn't restart without: */ 707 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 708 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 709 err = usb_set_interface(us122l->dev, 0, 1); 710 if (err) { 711 snd_printk(KERN_ERR "usb_set_interface error \n"); 712 goto unlock; 713 } 714 } 715 err = usb_set_interface(us122l->dev, 1, 1); 716 if (err) { 717 snd_printk(KERN_ERR "usb_set_interface error \n"); 718 goto unlock; 719 } 720 721 pt_info_set(us122l->dev, 0x11); 722 pt_info_set(us122l->dev, 0x10); 723 724 err = us122l_set_sample_rate(us122l->dev, 725 us122l->sk.s->cfg.sample_rate); 726 if (err < 0) { 727 snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); 728 goto unlock; 729 } 730 err = usb_stream_start(&us122l->sk); 731 if (err) 732 goto unlock; 733 734 list_for_each(p, &us122l->midi_list) 735 snd_usbmidi_input_start(p); 736 unlock: 737 mutex_unlock(&us122l->mutex); 738 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 739 return err; 740 } 741 742 static struct usb_device_id snd_us122l_usb_id_table[] = { 743 { 744 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 745 .idVendor = 0x0644, 746 .idProduct = USB_ID_US122L 747 }, 748 { /* US-144 only works at USB1.1! Disable module ehci-hcd. */ 749 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 750 .idVendor = 0x0644, 751 .idProduct = USB_ID_US144 752 }, 753 { 754 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 755 .idVendor = 0x0644, 756 .idProduct = USB_ID_US122MKII 757 }, 758 { 759 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 760 .idVendor = 0x0644, 761 .idProduct = USB_ID_US144MKII 762 }, 763 { /* terminator */ } 764 }; 765 766 MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table); 767 static struct usb_driver snd_us122l_usb_driver = { 768 .name = "snd-usb-us122l", 769 .probe = snd_us122l_probe, 770 .disconnect = snd_us122l_disconnect, 771 .suspend = snd_us122l_suspend, 772 .resume = snd_us122l_resume, 773 .reset_resume = snd_us122l_resume, 774 .id_table = snd_us122l_usb_id_table, 775 .supports_autosuspend = 1 776 }; 777 778 module_usb_driver(snd_us122l_usb_driver); 779