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 /* driver_info flags */ 50 #define US122L_FLAG_US144 BIT(0) 51 52 static int snd_us122l_card_used[SNDRV_CARDS]; 53 54 static int us122l_create_usbmidi(struct snd_card *card) 55 { 56 static struct snd_usb_midi_endpoint_info quirk_data = { 57 .out_ep = 4, 58 .in_ep = 3, 59 .out_cables = 0x001, 60 .in_cables = 0x001 61 }; 62 static struct snd_usb_audio_quirk quirk = { 63 .vendor_name = "US122L", 64 .product_name = NAME_ALLCAPS, 65 .ifnum = 1, 66 .type = QUIRK_MIDI_US122L, 67 .data = &quirk_data 68 }; 69 struct usb_device *dev = US122L(card)->dev; 70 struct usb_interface *iface = usb_ifnum_to_if(dev, 1); 71 72 return snd_usbmidi_create(card, iface, 73 &US122L(card)->midi_list, &quirk); 74 } 75 76 static int us144_create_usbmidi(struct snd_card *card) 77 { 78 static struct snd_usb_midi_endpoint_info quirk_data = { 79 .out_ep = 4, 80 .in_ep = 3, 81 .out_cables = 0x001, 82 .in_cables = 0x001 83 }; 84 static struct snd_usb_audio_quirk quirk = { 85 .vendor_name = "US144", 86 .product_name = NAME_ALLCAPS, 87 .ifnum = 0, 88 .type = QUIRK_MIDI_US122L, 89 .data = &quirk_data 90 }; 91 struct usb_device *dev = US122L(card)->dev; 92 struct usb_interface *iface = usb_ifnum_to_if(dev, 0); 93 94 return snd_usbmidi_create(card, iface, 95 &US122L(card)->midi_list, &quirk); 96 } 97 98 /* 99 * Wrapper for usb_control_msg(). 100 * Allocates a temp buffer to prevent dmaing from/to the stack. 101 */ 102 static int us122l_ctl_msg(struct usb_device *dev, unsigned int pipe, 103 __u8 request, __u8 requesttype, 104 __u16 value, __u16 index, void *data, 105 __u16 size, int timeout) 106 { 107 int err; 108 void *buf = NULL; 109 110 if (size > 0) { 111 buf = kmemdup(data, size, GFP_KERNEL); 112 if (!buf) 113 return -ENOMEM; 114 } 115 err = usb_control_msg(dev, pipe, request, requesttype, 116 value, index, buf, size, timeout); 117 if (size > 0) { 118 memcpy(data, buf, size); 119 kfree(buf); 120 } 121 return err; 122 } 123 124 static void pt_info_set(struct usb_device *dev, u8 v) 125 { 126 int ret; 127 128 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 129 'I', 130 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 131 v, 0, NULL, 0, 1000); 132 snd_printdd(KERN_DEBUG "%i\n", ret); 133 } 134 135 static void usb_stream_hwdep_vm_open(struct vm_area_struct *area) 136 { 137 struct us122l *us122l = area->vm_private_data; 138 atomic_inc(&us122l->mmap_count); 139 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); 140 } 141 142 static int usb_stream_hwdep_vm_fault(struct vm_fault *vmf) 143 { 144 unsigned long offset; 145 struct page *page; 146 void *vaddr; 147 struct us122l *us122l = vmf->vma->vm_private_data; 148 struct usb_stream *s; 149 150 mutex_lock(&us122l->mutex); 151 s = us122l->sk.s; 152 if (!s) 153 goto unlock; 154 155 offset = vmf->pgoff << PAGE_SHIFT; 156 if (offset < PAGE_ALIGN(s->read_size)) 157 vaddr = (char *)s + offset; 158 else { 159 offset -= PAGE_ALIGN(s->read_size); 160 if (offset >= PAGE_ALIGN(s->write_size)) 161 goto unlock; 162 163 vaddr = us122l->sk.write_page + offset; 164 } 165 page = virt_to_page(vaddr); 166 167 get_page(page); 168 mutex_unlock(&us122l->mutex); 169 170 vmf->page = page; 171 172 return 0; 173 unlock: 174 mutex_unlock(&us122l->mutex); 175 return VM_FAULT_SIGBUS; 176 } 177 178 static void usb_stream_hwdep_vm_close(struct vm_area_struct *area) 179 { 180 struct us122l *us122l = area->vm_private_data; 181 atomic_dec(&us122l->mmap_count); 182 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); 183 } 184 185 static const struct vm_operations_struct usb_stream_hwdep_vm_ops = { 186 .open = usb_stream_hwdep_vm_open, 187 .fault = usb_stream_hwdep_vm_fault, 188 .close = usb_stream_hwdep_vm_close, 189 }; 190 191 192 static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file) 193 { 194 struct us122l *us122l = hw->private_data; 195 struct usb_interface *iface; 196 snd_printdd(KERN_DEBUG "%p %p\n", hw, file); 197 if (hw->used >= 2) 198 return -EBUSY; 199 200 if (!us122l->first) 201 us122l->first = file; 202 203 if (us122l->is_us144) { 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->is_us144) { 219 iface = usb_ifnum_to_if(us122l->dev, 0); 220 usb_autopm_put_interface(iface); 221 } 222 iface = usb_ifnum_to_if(us122l->dev, 1); 223 usb_autopm_put_interface(iface); 224 if (us122l->first == file) 225 us122l->first = NULL; 226 mutex_lock(&us122l->mutex); 227 if (us122l->master == file) 228 us122l->master = us122l->slave; 229 230 us122l->slave = NULL; 231 mutex_unlock(&us122l->mutex); 232 return 0; 233 } 234 235 static int usb_stream_hwdep_mmap(struct snd_hwdep *hw, 236 struct file *filp, struct vm_area_struct *area) 237 { 238 unsigned long size = area->vm_end - area->vm_start; 239 struct us122l *us122l = hw->private_data; 240 unsigned long offset; 241 struct usb_stream *s; 242 int err = 0; 243 bool read; 244 245 offset = area->vm_pgoff << PAGE_SHIFT; 246 mutex_lock(&us122l->mutex); 247 s = us122l->sk.s; 248 read = offset < s->read_size; 249 if (read && area->vm_flags & VM_WRITE) { 250 err = -EPERM; 251 goto out; 252 } 253 snd_printdd(KERN_DEBUG "%lu %u\n", size, 254 read ? s->read_size : s->write_size); 255 /* if userspace tries to mmap beyond end of our buffer, fail */ 256 if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) { 257 snd_printk(KERN_WARNING "%lu > %u\n", size, 258 read ? s->read_size : s->write_size); 259 err = -EINVAL; 260 goto out; 261 } 262 263 area->vm_ops = &usb_stream_hwdep_vm_ops; 264 area->vm_flags |= VM_DONTDUMP; 265 if (!read) 266 area->vm_flags |= VM_DONTEXPAND; 267 area->vm_private_data = us122l; 268 atomic_inc(&us122l->mmap_count); 269 out: 270 mutex_unlock(&us122l->mutex); 271 return err; 272 } 273 274 static unsigned int usb_stream_hwdep_poll(struct snd_hwdep *hw, 275 struct file *file, poll_table *wait) 276 { 277 struct us122l *us122l = hw->private_data; 278 unsigned *polled; 279 unsigned int mask; 280 281 poll_wait(file, &us122l->sk.sleep, wait); 282 283 mask = POLLIN | POLLOUT | POLLWRNORM | POLLERR; 284 if (mutex_trylock(&us122l->mutex)) { 285 struct usb_stream *s = us122l->sk.s; 286 if (s && s->state == usb_stream_ready) { 287 if (us122l->first == file) 288 polled = &s->periods_polled; 289 else 290 polled = &us122l->second_periods_polled; 291 if (*polled != s->periods_done) { 292 *polled = s->periods_done; 293 mask = POLLIN | POLLOUT | POLLWRNORM; 294 } else 295 mask = 0; 296 } 297 mutex_unlock(&us122l->mutex); 298 } 299 return mask; 300 } 301 302 static void us122l_stop(struct us122l *us122l) 303 { 304 struct list_head *p; 305 list_for_each(p, &us122l->midi_list) 306 snd_usbmidi_input_stop(p); 307 308 usb_stream_stop(&us122l->sk); 309 usb_stream_free(&us122l->sk); 310 } 311 312 static int us122l_set_sample_rate(struct usb_device *dev, int rate) 313 { 314 unsigned int ep = 0x81; 315 unsigned char data[3]; 316 int err; 317 318 data[0] = rate; 319 data[1] = rate >> 8; 320 data[2] = rate >> 16; 321 err = us122l_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, 322 USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, 323 UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000); 324 if (err < 0) 325 snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n", 326 dev->devnum, rate, ep); 327 return err; 328 } 329 330 static bool us122l_start(struct us122l *us122l, 331 unsigned rate, unsigned period_frames) 332 { 333 struct list_head *p; 334 int err; 335 unsigned use_packsize = 0; 336 bool success = false; 337 338 if (us122l->dev->speed == USB_SPEED_HIGH) { 339 /* The us-122l's descriptor defaults to iso max_packsize 78, 340 which isn't needed for samplerates <= 48000. 341 Lets save some memory: 342 */ 343 switch (rate) { 344 case 44100: 345 use_packsize = 36; 346 break; 347 case 48000: 348 use_packsize = 42; 349 break; 350 case 88200: 351 use_packsize = 72; 352 break; 353 } 354 } 355 if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2, 356 rate, use_packsize, period_frames, 6)) 357 goto out; 358 359 err = us122l_set_sample_rate(us122l->dev, rate); 360 if (err < 0) { 361 us122l_stop(us122l); 362 snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); 363 goto out; 364 } 365 err = usb_stream_start(&us122l->sk); 366 if (err < 0) { 367 us122l_stop(us122l); 368 snd_printk(KERN_ERR "us122l_start error %i \n", err); 369 goto out; 370 } 371 list_for_each(p, &us122l->midi_list) 372 snd_usbmidi_input_start(p); 373 success = true; 374 out: 375 return success; 376 } 377 378 static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, 379 unsigned cmd, unsigned long arg) 380 { 381 struct usb_stream_config *cfg; 382 struct us122l *us122l = hw->private_data; 383 struct usb_stream *s; 384 unsigned min_period_frames; 385 int err = 0; 386 bool high_speed; 387 388 if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS) 389 return -ENOTTY; 390 391 cfg = memdup_user((void *)arg, sizeof(*cfg)); 392 if (IS_ERR(cfg)) 393 return PTR_ERR(cfg); 394 395 if (cfg->version != USB_STREAM_INTERFACE_VERSION) { 396 err = -ENXIO; 397 goto free; 398 } 399 high_speed = us122l->dev->speed == USB_SPEED_HIGH; 400 if ((cfg->sample_rate != 44100 && cfg->sample_rate != 48000 && 401 (!high_speed || 402 (cfg->sample_rate != 88200 && cfg->sample_rate != 96000))) || 403 cfg->frame_size != 6 || 404 cfg->period_frames > 0x3000) { 405 err = -EINVAL; 406 goto free; 407 } 408 switch (cfg->sample_rate) { 409 case 44100: 410 min_period_frames = 48; 411 break; 412 case 48000: 413 min_period_frames = 52; 414 break; 415 default: 416 min_period_frames = 104; 417 break; 418 } 419 if (!high_speed) 420 min_period_frames <<= 1; 421 if (cfg->period_frames < min_period_frames) { 422 err = -EINVAL; 423 goto free; 424 } 425 426 snd_power_wait(hw->card, SNDRV_CTL_POWER_D0); 427 428 mutex_lock(&us122l->mutex); 429 s = us122l->sk.s; 430 if (!us122l->master) 431 us122l->master = file; 432 else if (us122l->master != file) { 433 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg))) { 434 err = -EIO; 435 goto unlock; 436 } 437 us122l->slave = file; 438 } 439 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg)) || 440 s->state == usb_stream_xrun) { 441 us122l_stop(us122l); 442 if (!us122l_start(us122l, cfg->sample_rate, cfg->period_frames)) 443 err = -EIO; 444 else 445 err = 1; 446 } 447 unlock: 448 mutex_unlock(&us122l->mutex); 449 free: 450 kfree(cfg); 451 wake_up_all(&us122l->sk.sleep); 452 return err; 453 } 454 455 #define SND_USB_STREAM_ID "USB STREAM" 456 static int usb_stream_hwdep_new(struct snd_card *card) 457 { 458 int err; 459 struct snd_hwdep *hw; 460 struct usb_device *dev = US122L(card)->dev; 461 462 err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw); 463 if (err < 0) 464 return err; 465 466 hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM; 467 hw->private_data = US122L(card); 468 hw->ops.open = usb_stream_hwdep_open; 469 hw->ops.release = usb_stream_hwdep_release; 470 hw->ops.ioctl = usb_stream_hwdep_ioctl; 471 hw->ops.ioctl_compat = usb_stream_hwdep_ioctl; 472 hw->ops.mmap = usb_stream_hwdep_mmap; 473 hw->ops.poll = usb_stream_hwdep_poll; 474 475 sprintf(hw->name, "/dev/bus/usb/%03d/%03d/hwdeppcm", 476 dev->bus->busnum, dev->devnum); 477 return 0; 478 } 479 480 481 static bool us122l_create_card(struct snd_card *card) 482 { 483 int err; 484 struct us122l *us122l = US122L(card); 485 486 if (us122l->is_us144) { 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->is_us144) 506 err = us144_create_usbmidi(card); 507 else 508 err = us122l_create_usbmidi(card); 509 if (err < 0) { 510 snd_printk(KERN_ERR "us122l_create_usbmidi error %i \n", err); 511 goto stop; 512 } 513 err = usb_stream_hwdep_new(card); 514 if (err < 0) { 515 /* release the midi resources */ 516 struct list_head *p; 517 list_for_each(p, &us122l->midi_list) 518 snd_usbmidi_disconnect(p); 519 520 goto stop; 521 } 522 return true; 523 524 stop: 525 us122l_stop(us122l); 526 return false; 527 } 528 529 static void snd_us122l_free(struct snd_card *card) 530 { 531 struct us122l *us122l = US122L(card); 532 int index = us122l->card_index; 533 if (index >= 0 && index < SNDRV_CARDS) 534 snd_us122l_card_used[index] = 0; 535 } 536 537 static int usx2y_create_card(struct usb_device *device, 538 struct usb_interface *intf, 539 struct snd_card **cardp, 540 unsigned long flags) 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 US122L(card)->is_us144 = flags & US122L_FLAG_US144; 561 INIT_LIST_HEAD(&US122L(card)->midi_list); 562 strcpy(card->driver, "USB "NAME_ALLCAPS""); 563 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); 564 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", 565 card->shortname, 566 le16_to_cpu(device->descriptor.idVendor), 567 le16_to_cpu(device->descriptor.idProduct), 568 0, 569 US122L(card)->dev->bus->busnum, 570 US122L(card)->dev->devnum 571 ); 572 *cardp = card; 573 return 0; 574 } 575 576 static int us122l_usb_probe(struct usb_interface *intf, 577 const struct usb_device_id *device_id, 578 struct snd_card **cardp) 579 { 580 struct usb_device *device = interface_to_usbdev(intf); 581 struct snd_card *card; 582 int err; 583 584 err = usx2y_create_card(device, intf, &card, device_id->driver_info); 585 if (err < 0) 586 return err; 587 588 if (!us122l_create_card(card)) { 589 snd_card_free(card); 590 return -EINVAL; 591 } 592 593 err = snd_card_register(card); 594 if (err < 0) { 595 snd_card_free(card); 596 return err; 597 } 598 599 usb_get_intf(usb_ifnum_to_if(device, 0)); 600 usb_get_dev(device); 601 *cardp = card; 602 return 0; 603 } 604 605 static int snd_us122l_probe(struct usb_interface *intf, 606 const struct usb_device_id *id) 607 { 608 struct usb_device *device = interface_to_usbdev(intf); 609 struct snd_card *card; 610 int err; 611 612 if (id->driver_info & US122L_FLAG_US144 && 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->is_us144) { 708 err = usb_set_interface(us122l->dev, 0, 1); 709 if (err) { 710 snd_printk(KERN_ERR "usb_set_interface error \n"); 711 goto unlock; 712 } 713 } 714 err = usb_set_interface(us122l->dev, 1, 1); 715 if (err) { 716 snd_printk(KERN_ERR "usb_set_interface error \n"); 717 goto unlock; 718 } 719 720 pt_info_set(us122l->dev, 0x11); 721 pt_info_set(us122l->dev, 0x10); 722 723 err = us122l_set_sample_rate(us122l->dev, 724 us122l->sk.s->cfg.sample_rate); 725 if (err < 0) { 726 snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); 727 goto unlock; 728 } 729 err = usb_stream_start(&us122l->sk); 730 if (err) 731 goto unlock; 732 733 list_for_each(p, &us122l->midi_list) 734 snd_usbmidi_input_start(p); 735 unlock: 736 mutex_unlock(&us122l->mutex); 737 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 738 return err; 739 } 740 741 static const struct usb_device_id snd_us122l_usb_id_table[] = { 742 { 743 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 744 .idVendor = 0x0644, 745 .idProduct = USB_ID_US122L 746 }, 747 { /* US-144 only works at USB1.1! Disable module ehci-hcd. */ 748 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 749 .idVendor = 0x0644, 750 .idProduct = USB_ID_US144, 751 .driver_info = US122L_FLAG_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 .driver_info = US122L_FLAG_US144 763 }, 764 { /* terminator */ } 765 }; 766 767 MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table); 768 static struct usb_driver snd_us122l_usb_driver = { 769 .name = "snd-usb-us122l", 770 .probe = snd_us122l_probe, 771 .disconnect = snd_us122l_disconnect, 772 .suspend = snd_us122l_suspend, 773 .resume = snd_us122l_resume, 774 .reset_resume = snd_us122l_resume, 775 .id_table = snd_us122l_usb_id_table, 776 .supports_autosuspend = 1 777 }; 778 779 module_usb_driver(snd_us122l_usb_driver); 780