1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
4 */
5
6 #include <linux/slab.h>
7 #include <linux/usb.h>
8 #include <linux/usb/audio.h>
9 #include <linux/module.h>
10 #include <sound/core.h>
11 #include <sound/hwdep.h>
12 #include <sound/pcm.h>
13 #include <sound/initval.h>
14 #define MODNAME "US122L"
15 #include "usb_stream.c"
16 #include "../usbaudio.h"
17 #include "../midi.h"
18 #include "us122l.h"
19
20 MODULE_AUTHOR("Karsten Wiese <fzu@wemgehoertderstaat.de>");
21 MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5");
22 MODULE_LICENSE("GPL");
23
24 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
25 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
26 /* Enable this card */
27 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
28
29 module_param_array(index, int, NULL, 0444);
30 MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
31 module_param_array(id, charp, NULL, 0444);
32 MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
33 module_param_array(enable, bool, NULL, 0444);
34 MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
35
36 /* driver_info flags */
37 #define US122L_FLAG_US144 BIT(0)
38
39 static int snd_us122l_card_used[SNDRV_CARDS];
40
us122l_create_usbmidi(struct snd_card * card)41 static int us122l_create_usbmidi(struct snd_card *card)
42 {
43 static const struct snd_usb_midi_endpoint_info quirk_data = {
44 .out_ep = 4,
45 .in_ep = 3,
46 .out_cables = 0x001,
47 .in_cables = 0x001
48 };
49 static const struct snd_usb_audio_quirk quirk = {
50 .vendor_name = "US122L",
51 .product_name = NAME_ALLCAPS,
52 .ifnum = 1,
53 .type = QUIRK_MIDI_US122L,
54 .data = &quirk_data
55 };
56 struct usb_device *dev = US122L(card)->dev;
57 struct usb_interface *iface = usb_ifnum_to_if(dev, 1);
58
59 return snd_usbmidi_create(card, iface,
60 &US122L(card)->midi_list, &quirk);
61 }
62
us144_create_usbmidi(struct snd_card * card)63 static int us144_create_usbmidi(struct snd_card *card)
64 {
65 static const struct snd_usb_midi_endpoint_info quirk_data = {
66 .out_ep = 4,
67 .in_ep = 3,
68 .out_cables = 0x001,
69 .in_cables = 0x001
70 };
71 static const struct snd_usb_audio_quirk quirk = {
72 .vendor_name = "US144",
73 .product_name = NAME_ALLCAPS,
74 .ifnum = 0,
75 .type = QUIRK_MIDI_US122L,
76 .data = &quirk_data
77 };
78 struct usb_device *dev = US122L(card)->dev;
79 struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
80
81 return snd_usbmidi_create(card, iface,
82 &US122L(card)->midi_list, &quirk);
83 }
84
pt_info_set(struct usb_device * dev,u8 v)85 static void pt_info_set(struct usb_device *dev, u8 v)
86 {
87 usb_control_msg_send(dev, 0, 'I',
88 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
89 v, 0, NULL, 0, 1000, GFP_NOIO);
90 }
91
usb_stream_hwdep_vm_open(struct vm_area_struct * area)92 static void usb_stream_hwdep_vm_open(struct vm_area_struct *area)
93 {
94 struct us122l *us122l = area->vm_private_data;
95
96 atomic_inc(&us122l->mmap_count);
97 }
98
usb_stream_hwdep_vm_fault(struct vm_fault * vmf)99 static vm_fault_t usb_stream_hwdep_vm_fault(struct vm_fault *vmf)
100 {
101 unsigned long offset;
102 struct page *page;
103 void *vaddr;
104 struct us122l *us122l = vmf->vma->vm_private_data;
105 struct usb_stream *s;
106
107 mutex_lock(&us122l->mutex);
108 s = us122l->sk.s;
109 if (!s)
110 goto unlock;
111
112 offset = vmf->pgoff << PAGE_SHIFT;
113 if (offset < PAGE_ALIGN(s->read_size)) {
114 vaddr = (char *)s + offset;
115 } else {
116 offset -= PAGE_ALIGN(s->read_size);
117 if (offset >= PAGE_ALIGN(s->write_size))
118 goto unlock;
119
120 vaddr = us122l->sk.write_page + offset;
121 }
122 page = virt_to_page(vaddr);
123
124 get_page(page);
125 mutex_unlock(&us122l->mutex);
126
127 vmf->page = page;
128
129 return 0;
130 unlock:
131 mutex_unlock(&us122l->mutex);
132 return VM_FAULT_SIGBUS;
133 }
134
usb_stream_hwdep_vm_close(struct vm_area_struct * area)135 static void usb_stream_hwdep_vm_close(struct vm_area_struct *area)
136 {
137 struct us122l *us122l = area->vm_private_data;
138
139 atomic_dec(&us122l->mmap_count);
140 }
141
142 static const struct vm_operations_struct usb_stream_hwdep_vm_ops = {
143 .open = usb_stream_hwdep_vm_open,
144 .fault = usb_stream_hwdep_vm_fault,
145 .close = usb_stream_hwdep_vm_close,
146 };
147
usb_stream_hwdep_open(struct snd_hwdep * hw,struct file * file)148 static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file)
149 {
150 struct us122l *us122l = hw->private_data;
151 struct usb_interface *iface;
152
153 if (hw->used >= 2)
154 return -EBUSY;
155
156 if (!us122l->first)
157 us122l->first = file;
158
159 if (us122l->is_us144) {
160 iface = usb_ifnum_to_if(us122l->dev, 0);
161 usb_autopm_get_interface(iface);
162 }
163 iface = usb_ifnum_to_if(us122l->dev, 1);
164 usb_autopm_get_interface(iface);
165 return 0;
166 }
167
usb_stream_hwdep_release(struct snd_hwdep * hw,struct file * file)168 static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file)
169 {
170 struct us122l *us122l = hw->private_data;
171 struct usb_interface *iface;
172
173 if (us122l->is_us144) {
174 iface = usb_ifnum_to_if(us122l->dev, 0);
175 usb_autopm_put_interface(iface);
176 }
177 iface = usb_ifnum_to_if(us122l->dev, 1);
178 usb_autopm_put_interface(iface);
179 if (us122l->first == file)
180 us122l->first = NULL;
181 mutex_lock(&us122l->mutex);
182 if (us122l->master == file)
183 us122l->master = us122l->slave;
184
185 us122l->slave = NULL;
186 mutex_unlock(&us122l->mutex);
187 return 0;
188 }
189
usb_stream_hwdep_mmap(struct snd_hwdep * hw,struct file * filp,struct vm_area_struct * area)190 static int usb_stream_hwdep_mmap(struct snd_hwdep *hw,
191 struct file *filp, struct vm_area_struct *area)
192 {
193 unsigned long size = area->vm_end - area->vm_start;
194 struct us122l *us122l = hw->private_data;
195 unsigned long offset;
196 struct usb_stream *s;
197 int err = 0;
198 bool read;
199
200 offset = area->vm_pgoff << PAGE_SHIFT;
201 mutex_lock(&us122l->mutex);
202 s = us122l->sk.s;
203 read = offset < s->read_size;
204 if (read && area->vm_flags & VM_WRITE) {
205 err = -EPERM;
206 goto out;
207 }
208 /* if userspace tries to mmap beyond end of our buffer, fail */
209 if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) {
210 dev_warn(hw->card->dev, "%s: size %lu > %u\n", __func__,
211 size, read ? s->read_size : s->write_size);
212 err = -EINVAL;
213 goto out;
214 }
215
216 area->vm_ops = &usb_stream_hwdep_vm_ops;
217 vm_flags_set(area, VM_DONTDUMP);
218 if (!read)
219 vm_flags_set(area, VM_DONTEXPAND);
220 area->vm_private_data = us122l;
221 atomic_inc(&us122l->mmap_count);
222 out:
223 mutex_unlock(&us122l->mutex);
224 return err;
225 }
226
usb_stream_hwdep_poll(struct snd_hwdep * hw,struct file * file,poll_table * wait)227 static __poll_t usb_stream_hwdep_poll(struct snd_hwdep *hw,
228 struct file *file, poll_table *wait)
229 {
230 struct us122l *us122l = hw->private_data;
231 unsigned int *polled;
232 __poll_t mask;
233
234 poll_wait(file, &us122l->sk.sleep, wait);
235
236 mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM | EPOLLERR;
237 if (mutex_trylock(&us122l->mutex)) {
238 struct usb_stream *s = us122l->sk.s;
239
240 if (s && s->state == usb_stream_ready) {
241 if (us122l->first == file)
242 polled = &s->periods_polled;
243 else
244 polled = &us122l->second_periods_polled;
245 if (*polled != s->periods_done) {
246 *polled = s->periods_done;
247 mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM;
248 } else {
249 mask = 0;
250 }
251 }
252 mutex_unlock(&us122l->mutex);
253 }
254 return mask;
255 }
256
us122l_stop(struct us122l * us122l)257 static void us122l_stop(struct us122l *us122l)
258 {
259 struct list_head *p;
260
261 list_for_each(p, &us122l->midi_list)
262 snd_usbmidi_input_stop(p);
263
264 usb_stream_stop(&us122l->sk);
265 usb_stream_free(&us122l->sk);
266 }
267
us122l_set_sample_rate(struct usb_device * dev,int rate)268 static int us122l_set_sample_rate(struct usb_device *dev, int rate)
269 {
270 unsigned int ep = 0x81;
271 unsigned char data[3];
272 int err;
273
274 data[0] = rate;
275 data[1] = rate >> 8;
276 data[2] = rate >> 16;
277 err = usb_control_msg_send(dev, 0, UAC_SET_CUR,
278 USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
279 UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3,
280 1000, GFP_NOIO);
281 if (err)
282 dev_err(&dev->dev, "%d: cannot set freq %d to ep 0x%x\n",
283 dev->devnum, rate, ep);
284 return err;
285 }
286
us122l_start(struct us122l * us122l,unsigned int rate,unsigned int period_frames)287 static bool us122l_start(struct us122l *us122l,
288 unsigned int rate, unsigned int period_frames)
289 {
290 struct list_head *p;
291 int err;
292 unsigned int use_packsize = 0;
293 bool success = false;
294
295 if (us122l->dev->speed == USB_SPEED_HIGH) {
296 /* The us-122l's descriptor defaults to iso max_packsize 78,
297 which isn't needed for samplerates <= 48000.
298 Lets save some memory:
299 */
300 switch (rate) {
301 case 44100:
302 use_packsize = 36;
303 break;
304 case 48000:
305 use_packsize = 42;
306 break;
307 case 88200:
308 use_packsize = 72;
309 break;
310 }
311 }
312 if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2,
313 rate, use_packsize, period_frames, 6))
314 goto out;
315
316 err = us122l_set_sample_rate(us122l->dev, rate);
317 if (err < 0) {
318 us122l_stop(us122l);
319 dev_err(&us122l->dev->dev, "us122l_set_sample_rate error\n");
320 goto out;
321 }
322 err = usb_stream_start(&us122l->sk);
323 if (err < 0) {
324 us122l_stop(us122l);
325 dev_err(&us122l->dev->dev, "%s error %i\n", __func__, err);
326 goto out;
327 }
328 list_for_each(p, &us122l->midi_list)
329 snd_usbmidi_input_start(p);
330 success = true;
331 out:
332 return success;
333 }
334
usb_stream_hwdep_ioctl(struct snd_hwdep * hw,struct file * file,unsigned int cmd,unsigned long arg)335 static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
336 unsigned int cmd, unsigned long arg)
337 {
338 struct usb_stream_config cfg;
339 struct us122l *us122l = hw->private_data;
340 struct usb_stream *s;
341 unsigned int min_period_frames;
342 int err = 0;
343 bool high_speed;
344
345 if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS)
346 return -ENOTTY;
347
348 if (copy_from_user(&cfg, (void __user *)arg, sizeof(cfg)))
349 return -EFAULT;
350
351 if (cfg.version != USB_STREAM_INTERFACE_VERSION)
352 return -ENXIO;
353
354 high_speed = us122l->dev->speed == USB_SPEED_HIGH;
355 if ((cfg.sample_rate != 44100 && cfg.sample_rate != 48000 &&
356 (!high_speed ||
357 (cfg.sample_rate != 88200 && cfg.sample_rate != 96000))) ||
358 cfg.frame_size != 6 ||
359 cfg.period_frames > 0x3000)
360 return -EINVAL;
361
362 switch (cfg.sample_rate) {
363 case 44100:
364 min_period_frames = 48;
365 break;
366 case 48000:
367 min_period_frames = 52;
368 break;
369 default:
370 min_period_frames = 104;
371 break;
372 }
373 if (!high_speed)
374 min_period_frames <<= 1;
375 if (cfg.period_frames < min_period_frames)
376 return -EINVAL;
377
378 snd_power_wait(hw->card);
379
380 mutex_lock(&us122l->mutex);
381 s = us122l->sk.s;
382 if (!us122l->master) {
383 us122l->master = file;
384 } else if (us122l->master != file) {
385 if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg))) {
386 err = -EIO;
387 goto unlock;
388 }
389 us122l->slave = file;
390 }
391 if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg)) ||
392 s->state == usb_stream_xrun) {
393 us122l_stop(us122l);
394 if (!us122l_start(us122l, cfg.sample_rate, cfg.period_frames))
395 err = -EIO;
396 else
397 err = 1;
398 }
399 unlock:
400 mutex_unlock(&us122l->mutex);
401 wake_up_all(&us122l->sk.sleep);
402 return err;
403 }
404
405 #define SND_USB_STREAM_ID "USB STREAM"
usb_stream_hwdep_new(struct snd_card * card)406 static int usb_stream_hwdep_new(struct snd_card *card)
407 {
408 int err;
409 struct snd_hwdep *hw;
410 struct usb_device *dev = US122L(card)->dev;
411
412 err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw);
413 if (err < 0)
414 return err;
415
416 hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM;
417 hw->private_data = US122L(card);
418 hw->ops.open = usb_stream_hwdep_open;
419 hw->ops.release = usb_stream_hwdep_release;
420 hw->ops.ioctl = usb_stream_hwdep_ioctl;
421 hw->ops.ioctl_compat = usb_stream_hwdep_ioctl;
422 hw->ops.mmap = usb_stream_hwdep_mmap;
423 hw->ops.poll = usb_stream_hwdep_poll;
424
425 sprintf(hw->name, "/dev/bus/usb/%03d/%03d/hwdeppcm",
426 dev->bus->busnum, dev->devnum);
427 return 0;
428 }
429
us122l_create_card(struct snd_card * card)430 static bool us122l_create_card(struct snd_card *card)
431 {
432 int err;
433 struct us122l *us122l = US122L(card);
434
435 if (us122l->is_us144) {
436 err = usb_set_interface(us122l->dev, 0, 1);
437 if (err) {
438 dev_err(card->dev, "usb_set_interface error\n");
439 return false;
440 }
441 }
442 err = usb_set_interface(us122l->dev, 1, 1);
443 if (err) {
444 dev_err(card->dev, "usb_set_interface error\n");
445 return false;
446 }
447
448 pt_info_set(us122l->dev, 0x11);
449 pt_info_set(us122l->dev, 0x10);
450
451 if (!us122l_start(us122l, 44100, 256))
452 return false;
453
454 if (us122l->is_us144)
455 err = us144_create_usbmidi(card);
456 else
457 err = us122l_create_usbmidi(card);
458 if (err < 0) {
459 dev_err(card->dev, "us122l_create_usbmidi error %i\n", err);
460 goto stop;
461 }
462 err = usb_stream_hwdep_new(card);
463 if (err < 0) {
464 /* release the midi resources */
465 struct list_head *p;
466
467 list_for_each(p, &us122l->midi_list)
468 snd_usbmidi_disconnect(p);
469
470 goto stop;
471 }
472 return true;
473
474 stop:
475 us122l_stop(us122l);
476 return false;
477 }
478
snd_us122l_free(struct snd_card * card)479 static void snd_us122l_free(struct snd_card *card)
480 {
481 struct us122l *us122l = US122L(card);
482 int index = us122l->card_index;
483
484 if (index >= 0 && index < SNDRV_CARDS)
485 snd_us122l_card_used[index] = 0;
486 }
487
usx2y_create_card(struct usb_device * device,struct usb_interface * intf,struct snd_card ** cardp,unsigned long flags)488 static int usx2y_create_card(struct usb_device *device,
489 struct usb_interface *intf,
490 struct snd_card **cardp,
491 unsigned long flags)
492 {
493 int dev;
494 struct snd_card *card;
495 int err;
496
497 for (dev = 0; dev < SNDRV_CARDS; ++dev)
498 if (enable[dev] && !snd_us122l_card_used[dev])
499 break;
500 if (dev >= SNDRV_CARDS)
501 return -ENODEV;
502 err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE,
503 sizeof(struct us122l), &card);
504 if (err < 0)
505 return err;
506 snd_us122l_card_used[US122L(card)->card_index = dev] = 1;
507 card->private_free = snd_us122l_free;
508 US122L(card)->dev = device;
509 mutex_init(&US122L(card)->mutex);
510 US122L(card)->sk.dev = device;
511 init_waitqueue_head(&US122L(card)->sk.sleep);
512 US122L(card)->is_us144 = flags & US122L_FLAG_US144;
513 INIT_LIST_HEAD(&US122L(card)->midi_list);
514 strcpy(card->driver, "USB "NAME_ALLCAPS"");
515 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
516 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
517 card->shortname,
518 le16_to_cpu(device->descriptor.idVendor),
519 le16_to_cpu(device->descriptor.idProduct),
520 0,
521 US122L(card)->dev->bus->busnum,
522 US122L(card)->dev->devnum
523 );
524 *cardp = card;
525 return 0;
526 }
527
us122l_usb_probe(struct usb_interface * intf,const struct usb_device_id * device_id,struct snd_card ** cardp)528 static int us122l_usb_probe(struct usb_interface *intf,
529 const struct usb_device_id *device_id,
530 struct snd_card **cardp)
531 {
532 struct usb_device *device = interface_to_usbdev(intf);
533 struct snd_card *card;
534 int err;
535
536 err = usx2y_create_card(device, intf, &card, device_id->driver_info);
537 if (err < 0)
538 return err;
539
540 if (!us122l_create_card(card)) {
541 snd_card_free(card);
542 return -EINVAL;
543 }
544
545 err = snd_card_register(card);
546 if (err < 0) {
547 snd_card_free(card);
548 return err;
549 }
550
551 usb_get_intf(usb_ifnum_to_if(device, 0));
552 usb_get_dev(device);
553 *cardp = card;
554 return 0;
555 }
556
snd_us122l_probe(struct usb_interface * intf,const struct usb_device_id * id)557 static int snd_us122l_probe(struct usb_interface *intf,
558 const struct usb_device_id *id)
559 {
560 struct usb_device *device = interface_to_usbdev(intf);
561 struct snd_card *card;
562 int err;
563
564 if (id->driver_info & US122L_FLAG_US144 &&
565 device->speed == USB_SPEED_HIGH) {
566 dev_err(&device->dev, "disable ehci-hcd to run US-144\n");
567 return -ENODEV;
568 }
569
570 if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
571 return 0;
572
573 err = us122l_usb_probe(usb_get_intf(intf), id, &card);
574 if (err < 0) {
575 usb_put_intf(intf);
576 return err;
577 }
578
579 usb_set_intfdata(intf, card);
580 return 0;
581 }
582
snd_us122l_disconnect(struct usb_interface * intf)583 static void snd_us122l_disconnect(struct usb_interface *intf)
584 {
585 struct snd_card *card;
586 struct us122l *us122l;
587 struct list_head *p;
588
589 card = usb_get_intfdata(intf);
590 if (!card)
591 return;
592
593 snd_card_disconnect(card);
594
595 us122l = US122L(card);
596 mutex_lock(&us122l->mutex);
597 us122l_stop(us122l);
598 mutex_unlock(&us122l->mutex);
599
600 /* release the midi resources */
601 list_for_each(p, &us122l->midi_list) {
602 snd_usbmidi_disconnect(p);
603 }
604
605 usb_put_intf(usb_ifnum_to_if(us122l->dev, 0));
606 usb_put_intf(usb_ifnum_to_if(us122l->dev, 1));
607 usb_put_dev(us122l->dev);
608
609 while (atomic_read(&us122l->mmap_count))
610 msleep(500);
611
612 snd_card_free(card);
613 }
614
snd_us122l_suspend(struct usb_interface * intf,pm_message_t message)615 static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message)
616 {
617 struct snd_card *card;
618 struct us122l *us122l;
619 struct list_head *p;
620
621 card = usb_get_intfdata(intf);
622 if (!card)
623 return 0;
624 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
625
626 us122l = US122L(card);
627 if (!us122l)
628 return 0;
629
630 list_for_each(p, &us122l->midi_list)
631 snd_usbmidi_input_stop(p);
632
633 mutex_lock(&us122l->mutex);
634 usb_stream_stop(&us122l->sk);
635 mutex_unlock(&us122l->mutex);
636
637 return 0;
638 }
639
snd_us122l_resume(struct usb_interface * intf)640 static int snd_us122l_resume(struct usb_interface *intf)
641 {
642 struct snd_card *card;
643 struct us122l *us122l;
644 struct list_head *p;
645 int err;
646
647 card = usb_get_intfdata(intf);
648 if (!card)
649 return 0;
650
651 us122l = US122L(card);
652 if (!us122l)
653 return 0;
654
655 mutex_lock(&us122l->mutex);
656 /* needed, doesn't restart without: */
657 if (us122l->is_us144) {
658 err = usb_set_interface(us122l->dev, 0, 1);
659 if (err) {
660 dev_err(&us122l->dev->dev, "usb_set_interface error\n");
661 goto unlock;
662 }
663 }
664 err = usb_set_interface(us122l->dev, 1, 1);
665 if (err) {
666 dev_err(&us122l->dev->dev, "usb_set_interface error\n");
667 goto unlock;
668 }
669
670 pt_info_set(us122l->dev, 0x11);
671 pt_info_set(us122l->dev, 0x10);
672
673 err = us122l_set_sample_rate(us122l->dev,
674 us122l->sk.s->cfg.sample_rate);
675 if (err < 0) {
676 dev_err(&us122l->dev->dev, "us122l_set_sample_rate error\n");
677 goto unlock;
678 }
679 err = usb_stream_start(&us122l->sk);
680 if (err)
681 goto unlock;
682
683 list_for_each(p, &us122l->midi_list)
684 snd_usbmidi_input_start(p);
685 unlock:
686 mutex_unlock(&us122l->mutex);
687 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
688 return err;
689 }
690
691 static const struct usb_device_id snd_us122l_usb_id_table[] = {
692 {
693 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
694 .idVendor = 0x0644,
695 .idProduct = USB_ID_US122L
696 },
697 { /* US-144 only works at USB1.1! Disable module ehci-hcd. */
698 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
699 .idVendor = 0x0644,
700 .idProduct = USB_ID_US144,
701 .driver_info = US122L_FLAG_US144
702 },
703 {
704 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
705 .idVendor = 0x0644,
706 .idProduct = USB_ID_US122MKII
707 },
708 {
709 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
710 .idVendor = 0x0644,
711 .idProduct = USB_ID_US144MKII,
712 .driver_info = US122L_FLAG_US144
713 },
714 { /* terminator */ }
715 };
716 MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table);
717
718 static struct usb_driver snd_us122l_usb_driver = {
719 .name = "snd-usb-us122l",
720 .probe = snd_us122l_probe,
721 .disconnect = snd_us122l_disconnect,
722 .suspend = snd_us122l_suspend,
723 .resume = snd_us122l_resume,
724 .reset_resume = snd_us122l_resume,
725 .id_table = snd_us122l_usb_id_table,
726 .supports_autosuspend = 1
727 };
728
729 module_usb_driver(snd_us122l_usb_driver);
730