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 <sound/core.h> 23#include <sound/hwdep.h> 24#include <sound/pcm.h> 25#include <sound/initval.h> 26#define MODNAME "US122L" 27#include "usb_stream.c" 28#include "../usbaudio.h" 29#include "../midi.h" 30#include "us122l.h" 31 32MODULE_AUTHOR("Karsten Wiese <fzu@wemgehoertderstaat.de>"); 33MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5"); 34MODULE_LICENSE("GPL"); 35 36static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ 37static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ 38 /* Enable this card */ 39static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 40 41module_param_array(index, int, NULL, 0444); 42MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS"."); 43module_param_array(id, charp, NULL, 0444); 44MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS"."); 45module_param_array(enable, bool, NULL, 0444); 46MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS"."); 47 48static int snd_us122l_card_used[SNDRV_CARDS]; 49 50 51static int us122l_create_usbmidi(struct snd_card *card) 52{ 53 static struct snd_usb_midi_endpoint_info quirk_data = { 54 .out_ep = 4, 55 .in_ep = 3, 56 .out_cables = 0x001, 57 .in_cables = 0x001 58 }; 59 static struct snd_usb_audio_quirk quirk = { 60 .vendor_name = "US122L", 61 .product_name = NAME_ALLCAPS, 62 .ifnum = 1, 63 .type = QUIRK_MIDI_US122L, 64 .data = &quirk_data 65 }; 66 struct usb_device *dev = US122L(card)->dev; 67 struct usb_interface *iface = usb_ifnum_to_if(dev, 1); 68 69 return snd_usbmidi_create(card, iface, 70 &US122L(card)->midi_list, &quirk); 71} 72 73static int us144_create_usbmidi(struct snd_card *card) 74{ 75 static struct snd_usb_midi_endpoint_info quirk_data = { 76 .out_ep = 4, 77 .in_ep = 3, 78 .out_cables = 0x001, 79 .in_cables = 0x001 80 }; 81 static struct snd_usb_audio_quirk quirk = { 82 .vendor_name = "US144", 83 .product_name = NAME_ALLCAPS, 84 .ifnum = 0, 85 .type = QUIRK_MIDI_US122L, 86 .data = &quirk_data 87 }; 88 struct usb_device *dev = US122L(card)->dev; 89 struct usb_interface *iface = usb_ifnum_to_if(dev, 0); 90 91 return snd_usbmidi_create(card, iface, 92 &US122L(card)->midi_list, &quirk); 93} 94 95/* 96 * Wrapper for usb_control_msg(). 97 * Allocates a temp buffer to prevent dmaing from/to the stack. 98 */ 99static int us122l_ctl_msg(struct usb_device *dev, unsigned int pipe, 100 __u8 request, __u8 requesttype, 101 __u16 value, __u16 index, void *data, 102 __u16 size, int timeout) 103{ 104 int err; 105 void *buf = NULL; 106 107 if (size > 0) { 108 buf = kmemdup(data, size, GFP_KERNEL); 109 if (!buf) 110 return -ENOMEM; 111 } 112 err = usb_control_msg(dev, pipe, request, requesttype, 113 value, index, buf, size, timeout); 114 if (size > 0) { 115 memcpy(data, buf, size); 116 kfree(buf); 117 } 118 return err; 119} 120 121static void pt_info_set(struct usb_device *dev, u8 v) 122{ 123 int ret; 124 125 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 126 'I', 127 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 128 v, 0, NULL, 0, 1000); 129 snd_printdd(KERN_DEBUG "%i\n", ret); 130} 131 132static void usb_stream_hwdep_vm_open(struct vm_area_struct *area) 133{ 134 struct us122l *us122l = area->vm_private_data; 135 atomic_inc(&us122l->mmap_count); 136 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); 137} 138 139static int usb_stream_hwdep_vm_fault(struct vm_area_struct *area, 140 struct vm_fault *vmf) 141{ 142 unsigned long offset; 143 struct page *page; 144 void *vaddr; 145 struct us122l *us122l = area->vm_private_data; 146 struct usb_stream *s; 147 148 mutex_lock(&us122l->mutex); 149 s = us122l->sk.s; 150 if (!s) 151 goto unlock; 152 153 offset = vmf->pgoff << PAGE_SHIFT; 154 if (offset < PAGE_ALIGN(s->read_size)) 155 vaddr = (char *)s + offset; 156 else { 157 offset -= PAGE_ALIGN(s->read_size); 158 if (offset >= PAGE_ALIGN(s->write_size)) 159 goto unlock; 160 161 vaddr = us122l->sk.write_page + offset; 162 } 163 page = virt_to_page(vaddr); 164 165 get_page(page); 166 mutex_unlock(&us122l->mutex); 167 168 vmf->page = page; 169 170 return 0; 171unlock: 172 mutex_unlock(&us122l->mutex); 173 return VM_FAULT_SIGBUS; 174} 175 176static void usb_stream_hwdep_vm_close(struct vm_area_struct *area) 177{ 178 struct us122l *us122l = area->vm_private_data; 179 atomic_dec(&us122l->mmap_count); 180 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); 181} 182 183static const struct vm_operations_struct usb_stream_hwdep_vm_ops = { 184 .open = usb_stream_hwdep_vm_open, 185 .fault = usb_stream_hwdep_vm_fault, 186 .close = usb_stream_hwdep_vm_close, 187}; 188 189 190static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file) 191{ 192 struct us122l *us122l = hw->private_data; 193 struct usb_interface *iface; 194 snd_printdd(KERN_DEBUG "%p %p\n", hw, file); 195 if (hw->used >= 2) 196 return -EBUSY; 197 198 if (!us122l->first) 199 us122l->first = file; 200 201 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 202 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 203 iface = usb_ifnum_to_if(us122l->dev, 0); 204 usb_autopm_get_interface(iface); 205 } 206 iface = usb_ifnum_to_if(us122l->dev, 1); 207 usb_autopm_get_interface(iface); 208 return 0; 209} 210 211static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file) 212{ 213 struct us122l *us122l = hw->private_data; 214 struct usb_interface *iface; 215 snd_printdd(KERN_DEBUG "%p %p\n", hw, file); 216 217 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 218 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 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 235static 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_RESERVED; 265 area->vm_private_data = us122l; 266 atomic_inc(&us122l->mmap_count); 267out: 268 mutex_unlock(&us122l->mutex); 269 return err; 270} 271 272static unsigned int usb_stream_hwdep_poll(struct snd_hwdep *hw, 273 struct file *file, poll_table *wait) 274{ 275 struct us122l *us122l = hw->private_data; 276 unsigned *polled; 277 unsigned int mask; 278 279 poll_wait(file, &us122l->sk.sleep, wait); 280 281 mask = POLLIN | POLLOUT | POLLWRNORM | POLLERR; 282 if (mutex_trylock(&us122l->mutex)) { 283 struct usb_stream *s = us122l->sk.s; 284 if (s && s->state == usb_stream_ready) { 285 if (us122l->first == file) 286 polled = &s->periods_polled; 287 else 288 polled = &us122l->second_periods_polled; 289 if (*polled != s->periods_done) { 290 *polled = s->periods_done; 291 mask = POLLIN | POLLOUT | POLLWRNORM; 292 } else 293 mask = 0; 294 } 295 mutex_unlock(&us122l->mutex); 296 } 297 return mask; 298} 299 300static void us122l_stop(struct us122l *us122l) 301{ 302 struct list_head *p; 303 list_for_each(p, &us122l->midi_list) 304 snd_usbmidi_input_stop(p); 305 306 usb_stream_stop(&us122l->sk); 307 usb_stream_free(&us122l->sk); 308} 309 310static int us122l_set_sample_rate(struct usb_device *dev, int rate) 311{ 312 unsigned int ep = 0x81; 313 unsigned char data[3]; 314 int err; 315 316 data[0] = rate; 317 data[1] = rate >> 8; 318 data[2] = rate >> 16; 319 err = us122l_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, 320 USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, 321 UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000); 322 if (err < 0) 323 snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n", 324 dev->devnum, rate, ep); 325 return err; 326} 327 328static bool us122l_start(struct us122l *us122l, 329 unsigned rate, unsigned period_frames) 330{ 331 struct list_head *p; 332 int err; 333 unsigned use_packsize = 0; 334 bool success = false; 335 336 if (us122l->dev->speed == USB_SPEED_HIGH) { 337 /* The us-122l's descriptor defaults to iso max_packsize 78, 338 which isn't needed for samplerates <= 48000. 339 Lets save some memory: 340 */ 341 switch (rate) { 342 case 44100: 343 use_packsize = 36; 344 break; 345 case 48000: 346 use_packsize = 42; 347 break; 348 case 88200: 349 use_packsize = 72; 350 break; 351 } 352 } 353 if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2, 354 rate, use_packsize, period_frames, 6)) 355 goto out; 356 357 err = us122l_set_sample_rate(us122l->dev, rate); 358 if (err < 0) { 359 us122l_stop(us122l); 360 snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); 361 goto out; 362 } 363 err = usb_stream_start(&us122l->sk); 364 if (err < 0) { 365 us122l_stop(us122l); 366 snd_printk(KERN_ERR "us122l_start error %i \n", err); 367 goto out; 368 } 369 list_for_each(p, &us122l->midi_list) 370 snd_usbmidi_input_start(p); 371 success = true; 372out: 373 return success; 374} 375 376static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, 377 unsigned cmd, unsigned long arg) 378{ 379 struct usb_stream_config *cfg; 380 struct us122l *us122l = hw->private_data; 381 struct usb_stream *s; 382 unsigned min_period_frames; 383 int err = 0; 384 bool high_speed; 385 386 if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS) 387 return -ENOTTY; 388 389 cfg = memdup_user((void *)arg, sizeof(*cfg)); 390 if (IS_ERR(cfg)) 391 return PTR_ERR(cfg); 392 393 if (cfg->version != USB_STREAM_INTERFACE_VERSION) { 394 err = -ENXIO; 395 goto free; 396 } 397 high_speed = us122l->dev->speed == USB_SPEED_HIGH; 398 if ((cfg->sample_rate != 44100 && cfg->sample_rate != 48000 && 399 (!high_speed || 400 (cfg->sample_rate != 88200 && cfg->sample_rate != 96000))) || 401 cfg->frame_size != 6 || 402 cfg->period_frames > 0x3000) { 403 err = -EINVAL; 404 goto free; 405 } 406 switch (cfg->sample_rate) { 407 case 44100: 408 min_period_frames = 48; 409 break; 410 case 48000: 411 min_period_frames = 52; 412 break; 413 default: 414 min_period_frames = 104; 415 break; 416 } 417 if (!high_speed) 418 min_period_frames <<= 1; 419 if (cfg->period_frames < min_period_frames) { 420 err = -EINVAL; 421 goto free; 422 } 423 424 snd_power_wait(hw->card, SNDRV_CTL_POWER_D0); 425 426 mutex_lock(&us122l->mutex); 427 s = us122l->sk.s; 428 if (!us122l->master) 429 us122l->master = file; 430 else if (us122l->master != file) { 431 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg))) { 432 err = -EIO; 433 goto unlock; 434 } 435 us122l->slave = file; 436 } 437 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg)) || 438 s->state == usb_stream_xrun) { 439 us122l_stop(us122l); 440 if (!us122l_start(us122l, cfg->sample_rate, cfg->period_frames)) 441 err = -EIO; 442 else 443 err = 1; 444 } 445unlock: 446 mutex_unlock(&us122l->mutex); 447free: 448 kfree(cfg); 449 wake_up_all(&us122l->sk.sleep); 450 return err; 451} 452 453#define SND_USB_STREAM_ID "USB STREAM" 454static int usb_stream_hwdep_new(struct snd_card *card) 455{ 456 int err; 457 struct snd_hwdep *hw; 458 struct usb_device *dev = US122L(card)->dev; 459 460 err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw); 461 if (err < 0) 462 return err; 463 464 hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM; 465 hw->private_data = US122L(card); 466 hw->ops.open = usb_stream_hwdep_open; 467 hw->ops.release = usb_stream_hwdep_release; 468 hw->ops.ioctl = usb_stream_hwdep_ioctl; 469 hw->ops.ioctl_compat = usb_stream_hwdep_ioctl; 470 hw->ops.mmap = usb_stream_hwdep_mmap; 471 hw->ops.poll = usb_stream_hwdep_poll; 472 473 sprintf(hw->name, "/proc/bus/usb/%03d/%03d/hwdeppcm", 474 dev->bus->busnum, dev->devnum); 475 return 0; 476} 477 478 479static bool us122l_create_card(struct snd_card *card) 480{ 481 int err; 482 struct us122l *us122l = US122L(card); 483 484 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 485 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 486 err = usb_set_interface(us122l->dev, 0, 1); 487 if (err) { 488 snd_printk(KERN_ERR "usb_set_interface error \n"); 489 return false; 490 } 491 } 492 err = usb_set_interface(us122l->dev, 1, 1); 493 if (err) { 494 snd_printk(KERN_ERR "usb_set_interface error \n"); 495 return false; 496 } 497 498 pt_info_set(us122l->dev, 0x11); 499 pt_info_set(us122l->dev, 0x10); 500 501 if (!us122l_start(us122l, 44100, 256)) 502 return false; 503 504 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 505 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) 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 us122l_stop(us122l); 512 return false; 513 } 514 err = usb_stream_hwdep_new(card); 515 if (err < 0) { 516/* release the midi resources */ 517 struct list_head *p; 518 list_for_each(p, &us122l->midi_list) 519 snd_usbmidi_disconnect(p); 520 521 us122l_stop(us122l); 522 return false; 523 } 524 return true; 525} 526 527static void snd_us122l_free(struct snd_card *card) 528{ 529 struct us122l *us122l = US122L(card); 530 int index = us122l->card_index; 531 if (index >= 0 && index < SNDRV_CARDS) 532 snd_us122l_card_used[index] = 0; 533} 534 535static int usx2y_create_card(struct usb_device *device, struct snd_card **cardp) 536{ 537 int dev; 538 struct snd_card *card; 539 int err; 540 541 for (dev = 0; dev < SNDRV_CARDS; ++dev) 542 if (enable[dev] && !snd_us122l_card_used[dev]) 543 break; 544 if (dev >= SNDRV_CARDS) 545 return -ENODEV; 546 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 547 sizeof(struct us122l), &card); 548 if (err < 0) 549 return err; 550 snd_us122l_card_used[US122L(card)->card_index = dev] = 1; 551 card->private_free = snd_us122l_free; 552 US122L(card)->dev = device; 553 mutex_init(&US122L(card)->mutex); 554 init_waitqueue_head(&US122L(card)->sk.sleep); 555 INIT_LIST_HEAD(&US122L(card)->midi_list); 556 strcpy(card->driver, "USB "NAME_ALLCAPS""); 557 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); 558 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", 559 card->shortname, 560 le16_to_cpu(device->descriptor.idVendor), 561 le16_to_cpu(device->descriptor.idProduct), 562 0, 563 US122L(card)->dev->bus->busnum, 564 US122L(card)->dev->devnum 565 ); 566 *cardp = card; 567 return 0; 568} 569 570static int us122l_usb_probe(struct usb_interface *intf, 571 const struct usb_device_id *device_id, 572 struct snd_card **cardp) 573{ 574 struct usb_device *device = interface_to_usbdev(intf); 575 struct snd_card *card; 576 int err; 577 578 err = usx2y_create_card(device, &card); 579 if (err < 0) 580 return err; 581 582 snd_card_set_dev(card, &intf->dev); 583 if (!us122l_create_card(card)) { 584 snd_card_free(card); 585 return -EINVAL; 586 } 587 588 err = snd_card_register(card); 589 if (err < 0) { 590 snd_card_free(card); 591 return err; 592 } 593 594 usb_get_intf(usb_ifnum_to_if(device, 0)); 595 usb_get_dev(device); 596 *cardp = card; 597 return 0; 598} 599 600static int snd_us122l_probe(struct usb_interface *intf, 601 const struct usb_device_id *id) 602{ 603 struct usb_device *device = interface_to_usbdev(intf); 604 struct snd_card *card; 605 int err; 606 607 if ((device->descriptor.idProduct == USB_ID_US144 || 608 device->descriptor.idProduct == USB_ID_US144MKII) 609 && device->speed == USB_SPEED_HIGH) { 610 snd_printk(KERN_ERR "disable ehci-hcd to run US-144 \n"); 611 return -ENODEV; 612 } 613 614 snd_printdd(KERN_DEBUG"%p:%i\n", 615 intf, intf->cur_altsetting->desc.bInterfaceNumber); 616 if (intf->cur_altsetting->desc.bInterfaceNumber != 1) 617 return 0; 618 619 err = us122l_usb_probe(usb_get_intf(intf), id, &card); 620 if (err < 0) { 621 usb_put_intf(intf); 622 return err; 623 } 624 625 usb_set_intfdata(intf, card); 626 return 0; 627} 628 629static void snd_us122l_disconnect(struct usb_interface *intf) 630{ 631 struct snd_card *card; 632 struct us122l *us122l; 633 struct list_head *p; 634 635 card = usb_get_intfdata(intf); 636 if (!card) 637 return; 638 639 snd_card_disconnect(card); 640 641 us122l = US122L(card); 642 mutex_lock(&us122l->mutex); 643 us122l_stop(us122l); 644 mutex_unlock(&us122l->mutex); 645 646/* release the midi resources */ 647 list_for_each(p, &us122l->midi_list) { 648 snd_usbmidi_disconnect(p); 649 } 650 651 usb_put_intf(usb_ifnum_to_if(us122l->dev, 0)); 652 usb_put_intf(usb_ifnum_to_if(us122l->dev, 1)); 653 usb_put_dev(us122l->dev); 654 655 while (atomic_read(&us122l->mmap_count)) 656 msleep(500); 657 658 snd_card_free(card); 659} 660 661static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message) 662{ 663 struct snd_card *card; 664 struct us122l *us122l; 665 struct list_head *p; 666 667 card = usb_get_intfdata(intf); 668 if (!card) 669 return 0; 670 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 671 672 us122l = US122L(card); 673 if (!us122l) 674 return 0; 675 676 list_for_each(p, &us122l->midi_list) 677 snd_usbmidi_input_stop(p); 678 679 mutex_lock(&us122l->mutex); 680 usb_stream_stop(&us122l->sk); 681 mutex_unlock(&us122l->mutex); 682 683 return 0; 684} 685 686static int snd_us122l_resume(struct usb_interface *intf) 687{ 688 struct snd_card *card; 689 struct us122l *us122l; 690 struct list_head *p; 691 int err; 692 693 card = usb_get_intfdata(intf); 694 if (!card) 695 return 0; 696 697 us122l = US122L(card); 698 if (!us122l) 699 return 0; 700 701 mutex_lock(&us122l->mutex); 702 /* needed, doesn't restart without: */ 703 if (us122l->dev->descriptor.idProduct == USB_ID_US144 || 704 us122l->dev->descriptor.idProduct == USB_ID_US144MKII) { 705 err = usb_set_interface(us122l->dev, 0, 1); 706 if (err) { 707 snd_printk(KERN_ERR "usb_set_interface error \n"); 708 goto unlock; 709 } 710 } 711 err = usb_set_interface(us122l->dev, 1, 1); 712 if (err) { 713 snd_printk(KERN_ERR "usb_set_interface error \n"); 714 goto unlock; 715 } 716 717 pt_info_set(us122l->dev, 0x11); 718 pt_info_set(us122l->dev, 0x10); 719 720 err = us122l_set_sample_rate(us122l->dev, 721 us122l->sk.s->cfg.sample_rate); 722 if (err < 0) { 723 snd_printk(KERN_ERR "us122l_set_sample_rate error \n"); 724 goto unlock; 725 } 726 err = usb_stream_start(&us122l->sk); 727 if (err) 728 goto unlock; 729 730 list_for_each(p, &us122l->midi_list) 731 snd_usbmidi_input_start(p); 732unlock: 733 mutex_unlock(&us122l->mutex); 734 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 735 return err; 736} 737 738static struct usb_device_id snd_us122l_usb_id_table[] = { 739 { 740 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 741 .idVendor = 0x0644, 742 .idProduct = USB_ID_US122L 743 }, 744 { /* US-144 only works at USB1.1! Disable module ehci-hcd. */ 745 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 746 .idVendor = 0x0644, 747 .idProduct = USB_ID_US144 748 }, 749 { 750 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 751 .idVendor = 0x0644, 752 .idProduct = USB_ID_US122MKII 753 }, 754 { 755 .match_flags = USB_DEVICE_ID_MATCH_DEVICE, 756 .idVendor = 0x0644, 757 .idProduct = USB_ID_US144MKII 758 }, 759 { /* terminator */ } 760}; 761 762MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table); 763static struct usb_driver snd_us122l_usb_driver = { 764 .name = "snd-usb-us122l", 765 .probe = snd_us122l_probe, 766 .disconnect = snd_us122l_disconnect, 767 .suspend = snd_us122l_suspend, 768 .resume = snd_us122l_resume, 769 .reset_resume = snd_us122l_resume, 770 .id_table = snd_us122l_usb_id_table, 771 .supports_autosuspend = 1 772}; 773 774 775static int __init snd_us122l_module_init(void) 776{ 777 return usb_register(&snd_us122l_usb_driver); 778} 779 780static void __exit snd_us122l_module_exit(void) 781{ 782 usb_deregister(&snd_us122l_usb_driver); 783} 784 785module_init(snd_us122l_module_init) 786module_exit(snd_us122l_module_exit) 787