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_RESERVED; 266 area->vm_private_data = us122l; 267 atomic_inc(&us122l->mmap_count); 268 out: 269 mutex_unlock(&us122l->mutex); 270 return err; 271 } 272 273 static unsigned int usb_stream_hwdep_poll(struct snd_hwdep *hw, 274 struct file *file, poll_table *wait) 275 { 276 struct us122l *us122l = hw->private_data; 277 unsigned *polled; 278 unsigned int mask; 279 280 poll_wait(file, &us122l->sk.sleep, wait); 281 282 mask = POLLIN | POLLOUT | POLLWRNORM | POLLERR; 283 if (mutex_trylock(&us122l->mutex)) { 284 struct usb_stream *s = us122l->sk.s; 285 if (s && s->state == usb_stream_ready) { 286 if (us122l->first == file) 287 polled = &s->periods_polled; 288 else 289 polled = &us122l->second_periods_polled; 290 if (*polled != s->periods_done) { 291 *polled = s->periods_done; 292 mask = POLLIN | POLLOUT | POLLWRNORM; 293 } else 294 mask = 0; 295 } 296 mutex_unlock(&us122l->mutex); 297 } 298 return mask; 299 } 300 301 static void us122l_stop(struct us122l *us122l) 302 { 303 struct list_head *p; 304 list_for_each(p, &us122l->midi_list) 305 snd_usbmidi_input_stop(p); 306 307 usb_stream_stop(&us122l->sk); 308 usb_stream_free(&us122l->sk); 309 } 310 311 static int us122l_set_sample_rate(struct usb_device *dev, int rate) 312 { 313 unsigned int ep = 0x81; 314 unsigned char data[3]; 315 int err; 316 317 data[0] = rate; 318 data[1] = rate >> 8; 319 data[2] = rate >> 16; 320 err = us122l_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, 321 USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, 322 UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000); 323 if (err < 0) 324 snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n", 325 dev->devnum, rate, ep); 326 return err; 327 } 328 329 static bool us122l_start(struct us122l *us122l, 330 unsigned rate, unsigned period_frames) 331 { 332 struct list_head *p; 333 int err; 334 unsigned use_packsize = 0; 335 bool success = false; 336 337 if (us122l->dev->speed == USB_SPEED_HIGH) { 338 /* The us-122l's descriptor defaults to iso max_packsize 78, 339 which isn't needed for samplerates <= 48000. 340 Lets save some memory: 341 */ 342 switch (rate) { 343 case 44100: 344 use_packsize = 36; 345 break; 346 case 48000: 347 use_packsize = 42; 348 break; 349 case 88200: 350 use_packsize = 72; 351 break; 352 } 353 } 354 if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2, 355 rate, use_packsize, period_frames, 6)) 356 goto out; 357 358 err = us122l_set_sample_rate(us122l->dev, rate); 359 if (err < 0) { 360 us122l_stop(us122l); 361 snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); 362 goto out; 363 } 364 err = usb_stream_start(&us122l->sk); 365 if (err < 0) { 366 us122l_stop(us122l); 367 snd_printk(KERN_ERR "us122l_start error %i \n", err); 368 goto out; 369 } 370 list_for_each(p, &us122l->midi_list) 371 snd_usbmidi_input_start(p); 372 success = true; 373 out: 374 return success; 375 } 376 377 static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, 378 unsigned cmd, unsigned long arg) 379 { 380 struct usb_stream_config *cfg; 381 struct us122l *us122l = hw->private_data; 382 struct usb_stream *s; 383 unsigned min_period_frames; 384 int err = 0; 385 bool high_speed; 386 387 if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS) 388 return -ENOTTY; 389 390 cfg = memdup_user((void *)arg, sizeof(*cfg)); 391 if (IS_ERR(cfg)) 392 return PTR_ERR(cfg); 393 394 if (cfg->version != USB_STREAM_INTERFACE_VERSION) { 395 err = -ENXIO; 396 goto free; 397 } 398 high_speed = us122l->dev->speed == USB_SPEED_HIGH; 399 if ((cfg->sample_rate != 44100 && cfg->sample_rate != 48000 && 400 (!high_speed || 401 (cfg->sample_rate != 88200 && cfg->sample_rate != 96000))) || 402 cfg->frame_size != 6 || 403 cfg->period_frames > 0x3000) { 404 err = -EINVAL; 405 goto free; 406 } 407 switch (cfg->sample_rate) { 408 case 44100: 409 min_period_frames = 48; 410 break; 411 case 48000: 412 min_period_frames = 52; 413 break; 414 default: 415 min_period_frames = 104; 416 break; 417 } 418 if (!high_speed) 419 min_period_frames <<= 1; 420 if (cfg->period_frames < min_period_frames) { 421 err = -EINVAL; 422 goto free; 423 } 424 425 snd_power_wait(hw->card, SNDRV_CTL_POWER_D0); 426 427 mutex_lock(&us122l->mutex); 428 s = us122l->sk.s; 429 if (!us122l->master) 430 us122l->master = file; 431 else if (us122l->master != file) { 432 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg))) { 433 err = -EIO; 434 goto unlock; 435 } 436 us122l->slave = file; 437 } 438 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg)) || 439 s->state == usb_stream_xrun) { 440 us122l_stop(us122l); 441 if (!us122l_start(us122l, cfg->sample_rate, cfg->period_frames)) 442 err = -EIO; 443 else 444 err = 1; 445 } 446 unlock: 447 mutex_unlock(&us122l->mutex); 448 free: 449 kfree(cfg); 450 wake_up_all(&us122l->sk.sleep); 451 return err; 452 } 453 454 #define SND_USB_STREAM_ID "USB STREAM" 455 static int usb_stream_hwdep_new(struct snd_card *card) 456 { 457 int err; 458 struct snd_hwdep *hw; 459 struct usb_device *dev = US122L(card)->dev; 460 461 err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw); 462 if (err < 0) 463 return err; 464 465 hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM; 466 hw->private_data = US122L(card); 467 hw->ops.open = usb_stream_hwdep_open; 468 hw->ops.release = usb_stream_hwdep_release; 469 hw->ops.ioctl = usb_stream_hwdep_ioctl; 470 hw->ops.ioctl_compat = usb_stream_hwdep_ioctl; 471 hw->ops.mmap = usb_stream_hwdep_mmap; 472 hw->ops.poll = usb_stream_hwdep_poll; 473 474 sprintf(hw->name, "/proc/bus/usb/%03d/%03d/hwdeppcm", 475 dev->bus->busnum, dev->devnum); 476 return 0; 477 } 478 479 480 static bool us122l_create_card(struct snd_card *card) 481 { 482 int err; 483 struct us122l *us122l = US122L(card); 484 485 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 486 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 487 err = usb_set_interface(us122l->dev, 0, 1); 488 if (err) { 489 snd_printk(KERN_ERR "usb_set_interface error \n"); 490 return false; 491 } 492 } 493 err = usb_set_interface(us122l->dev, 1, 1); 494 if (err) { 495 snd_printk(KERN_ERR "usb_set_interface error \n"); 496 return false; 497 } 498 499 pt_info_set(us122l->dev, 0x11); 500 pt_info_set(us122l->dev, 0x10); 501 502 if (!us122l_start(us122l, 44100, 256)) 503 return false; 504 505 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 506 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) 507 err = us144_create_usbmidi(card); 508 else 509 err = us122l_create_usbmidi(card); 510 if (err < 0) { 511 snd_printk(KERN_ERR "us122l_create_usbmidi error %i \n", err); 512 us122l_stop(us122l); 513 return false; 514 } 515 err = usb_stream_hwdep_new(card); 516 if (err < 0) { 517 /* release the midi resources */ 518 struct list_head *p; 519 list_for_each(p, &us122l->midi_list) 520 snd_usbmidi_disconnect(p); 521 522 us122l_stop(us122l); 523 return false; 524 } 525 return true; 526 } 527 528 static void snd_us122l_free(struct snd_card *card) 529 { 530 struct us122l *us122l = US122L(card); 531 int index = us122l->card_index; 532 if (index >= 0 && index < SNDRV_CARDS) 533 snd_us122l_card_used[index] = 0; 534 } 535 536 static int usx2y_create_card(struct usb_device *device, struct snd_card **cardp) 537 { 538 int dev; 539 struct snd_card *card; 540 int err; 541 542 for (dev = 0; dev < SNDRV_CARDS; ++dev) 543 if (enable[dev] && !snd_us122l_card_used[dev]) 544 break; 545 if (dev >= SNDRV_CARDS) 546 return -ENODEV; 547 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 548 sizeof(struct us122l), &card); 549 if (err < 0) 550 return err; 551 snd_us122l_card_used[US122L(card)->card_index = dev] = 1; 552 card->private_free = snd_us122l_free; 553 US122L(card)->dev = device; 554 mutex_init(&US122L(card)->mutex); 555 init_waitqueue_head(&US122L(card)->sk.sleep); 556 INIT_LIST_HEAD(&US122L(card)->midi_list); 557 strcpy(card->driver, "USB "NAME_ALLCAPS""); 558 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); 559 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", 560 card->shortname, 561 le16_to_cpu(device->descriptor.idVendor), 562 le16_to_cpu(device->descriptor.idProduct), 563 0, 564 US122L(card)->dev->bus->busnum, 565 US122L(card)->dev->devnum 566 ); 567 *cardp = card; 568 return 0; 569 } 570 571 static int us122l_usb_probe(struct usb_interface *intf, 572 const struct usb_device_id *device_id, 573 struct snd_card **cardp) 574 { 575 struct usb_device *device = interface_to_usbdev(intf); 576 struct snd_card *card; 577 int err; 578 579 err = usx2y_create_card(device, &card); 580 if (err < 0) 581 return err; 582 583 snd_card_set_dev(card, &intf->dev); 584 if (!us122l_create_card(card)) { 585 snd_card_free(card); 586 return -EINVAL; 587 } 588 589 err = snd_card_register(card); 590 if (err < 0) { 591 snd_card_free(card); 592 return err; 593 } 594 595 usb_get_intf(usb_ifnum_to_if(device, 0)); 596 usb_get_dev(device); 597 *cardp = card; 598 return 0; 599 } 600 601 static int snd_us122l_probe(struct usb_interface *intf, 602 const struct usb_device_id *id) 603 { 604 struct usb_device *device = interface_to_usbdev(intf); 605 struct snd_card *card; 606 int err; 607 608 if ((device->descriptor.idProduct == USB_ID_US144 || 609 device->descriptor.idProduct == USB_ID_US144MKII) 610 && device->speed == USB_SPEED_HIGH) { 611 snd_printk(KERN_ERR "disable ehci-hcd to run US-144 \n"); 612 return -ENODEV; 613 } 614 615 snd_printdd(KERN_DEBUG"%p:%i\n", 616 intf, intf->cur_altsetting->desc.bInterfaceNumber); 617 if (intf->cur_altsetting->desc.bInterfaceNumber != 1) 618 return 0; 619 620 err = us122l_usb_probe(usb_get_intf(intf), id, &card); 621 if (err < 0) { 622 usb_put_intf(intf); 623 return err; 624 } 625 626 usb_set_intfdata(intf, card); 627 return 0; 628 } 629 630 static void snd_us122l_disconnect(struct usb_interface *intf) 631 { 632 struct snd_card *card; 633 struct us122l *us122l; 634 struct list_head *p; 635 636 card = usb_get_intfdata(intf); 637 if (!card) 638 return; 639 640 snd_card_disconnect(card); 641 642 us122l = US122L(card); 643 mutex_lock(&us122l->mutex); 644 us122l_stop(us122l); 645 mutex_unlock(&us122l->mutex); 646 647 /* release the midi resources */ 648 list_for_each(p, &us122l->midi_list) { 649 snd_usbmidi_disconnect(p); 650 } 651 652 usb_put_intf(usb_ifnum_to_if(us122l->dev, 0)); 653 usb_put_intf(usb_ifnum_to_if(us122l->dev, 1)); 654 usb_put_dev(us122l->dev); 655 656 while (atomic_read(&us122l->mmap_count)) 657 msleep(500); 658 659 snd_card_free(card); 660 } 661 662 static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message) 663 { 664 struct snd_card *card; 665 struct us122l *us122l; 666 struct list_head *p; 667 668 card = usb_get_intfdata(intf); 669 if (!card) 670 return 0; 671 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 672 673 us122l = US122L(card); 674 if (!us122l) 675 return 0; 676 677 list_for_each(p, &us122l->midi_list) 678 snd_usbmidi_input_stop(p); 679 680 mutex_lock(&us122l->mutex); 681 usb_stream_stop(&us122l->sk); 682 mutex_unlock(&us122l->mutex); 683 684 return 0; 685 } 686 687 static int snd_us122l_resume(struct usb_interface *intf) 688 { 689 struct snd_card *card; 690 struct us122l *us122l; 691 struct list_head *p; 692 int err; 693 694 card = usb_get_intfdata(intf); 695 if (!card) 696 return 0; 697 698 us122l = US122L(card); 699 if (!us122l) 700 return 0; 701 702 mutex_lock(&us122l->mutex); 703 /* needed, doesn't restart without: */ 704 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 705 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 706 err = usb_set_interface(us122l->dev, 0, 1); 707 if (err) { 708 snd_printk(KERN_ERR "usb_set_interface error \n"); 709 goto unlock; 710 } 711 } 712 err = usb_set_interface(us122l->dev, 1, 1); 713 if (err) { 714 snd_printk(KERN_ERR "usb_set_interface error \n"); 715 goto unlock; 716 } 717 718 pt_info_set(us122l->dev, 0x11); 719 pt_info_set(us122l->dev, 0x10); 720 721 err = us122l_set_sample_rate(us122l->dev, 722 us122l->sk.s->cfg.sample_rate); 723 if (err < 0) { 724 snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); 725 goto unlock; 726 } 727 err = usb_stream_start(&us122l->sk); 728 if (err) 729 goto unlock; 730 731 list_for_each(p, &us122l->midi_list) 732 snd_usbmidi_input_start(p); 733 unlock: 734 mutex_unlock(&us122l->mutex); 735 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 736 return err; 737 } 738 739 static struct usb_device_id snd_us122l_usb_id_table[] = { 740 { 741 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 742 .idVendor = 0x0644, 743 .idProduct = USB_ID_US122L 744 }, 745 { /* US-144 only works at USB1.1! Disable module ehci-hcd. */ 746 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 747 .idVendor = 0x0644, 748 .idProduct = USB_ID_US144 749 }, 750 { 751 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 752 .idVendor = 0x0644, 753 .idProduct = USB_ID_US122MKII 754 }, 755 { 756 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 757 .idVendor = 0x0644, 758 .idProduct = USB_ID_US144MKII 759 }, 760 { /* terminator */ } 761 }; 762 763 MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table); 764 static struct usb_driver snd_us122l_usb_driver = { 765 .name = "snd-usb-us122l", 766 .probe = snd_us122l_probe, 767 .disconnect = snd_us122l_disconnect, 768 .suspend = snd_us122l_suspend, 769 .resume = snd_us122l_resume, 770 .reset_resume = snd_us122l_resume, 771 .id_table = snd_us122l_usb_id_table, 772 .supports_autosuspend = 1 773 }; 774 775 776 static int __init snd_us122l_module_init(void) 777 { 778 return usb_register(&snd_us122l_usb_driver); 779 } 780 781 static void __exit snd_us122l_module_exit(void) 782 { 783 usb_deregister(&snd_us122l_usb_driver); 784 } 785 786 module_init(snd_us122l_module_init) 787 module_exit(snd_us122l_module_exit) 788