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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
20MODULE_AUTHOR("Karsten Wiese <fzu@wemgehoertderstaat.de>");
21MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5");
22MODULE_LICENSE("GPL");
23
24static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
25static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
26
27static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
28
29module_param_array(index, int, NULL, 0444);
30MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
31module_param_array(id, charp, NULL, 0444);
32MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
33module_param_array(enable, bool, NULL, 0444);
34MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
35
36
37#define US122L_FLAG_US144 BIT(0)
38
39static int snd_us122l_card_used[SNDRV_CARDS];
40
41static 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
63static 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
85static void pt_info_set(struct usb_device *dev, u8 v)
86{
87 int ret;
88
89 ret = usb_control_msg_send(dev, 0, 'I',
90 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
91 v, 0, NULL, 0, 1000, GFP_NOIO);
92 snd_printdd(KERN_DEBUG "%i\n", ret);
93}
94
95static void usb_stream_hwdep_vm_open(struct vm_area_struct *area)
96{
97 struct us122l *us122l = area->vm_private_data;
98
99 atomic_inc(&us122l->mmap_count);
100 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count));
101}
102
103static vm_fault_t usb_stream_hwdep_vm_fault(struct vm_fault *vmf)
104{
105 unsigned long offset;
106 struct page *page;
107 void *vaddr;
108 struct us122l *us122l = vmf->vma->vm_private_data;
109 struct usb_stream *s;
110
111 mutex_lock(&us122l->mutex);
112 s = us122l->sk.s;
113 if (!s)
114 goto unlock;
115
116 offset = vmf->pgoff << PAGE_SHIFT;
117 if (offset < PAGE_ALIGN(s->read_size)) {
118 vaddr = (char *)s + offset;
119 } else {
120 offset -= PAGE_ALIGN(s->read_size);
121 if (offset >= PAGE_ALIGN(s->write_size))
122 goto unlock;
123
124 vaddr = us122l->sk.write_page + offset;
125 }
126 page = virt_to_page(vaddr);
127
128 get_page(page);
129 mutex_unlock(&us122l->mutex);
130
131 vmf->page = page;
132
133 return 0;
134unlock:
135 mutex_unlock(&us122l->mutex);
136 return VM_FAULT_SIGBUS;
137}
138
139static void usb_stream_hwdep_vm_close(struct vm_area_struct *area)
140{
141 struct us122l *us122l = area->vm_private_data;
142
143 atomic_dec(&us122l->mmap_count);
144 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count));
145}
146
147static const struct vm_operations_struct usb_stream_hwdep_vm_ops = {
148 .open = usb_stream_hwdep_vm_open,
149 .fault = usb_stream_hwdep_vm_fault,
150 .close = usb_stream_hwdep_vm_close,
151};
152
153static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file)
154{
155 struct us122l *us122l = hw->private_data;
156 struct usb_interface *iface;
157
158 snd_printdd(KERN_DEBUG "%p %p\n", hw, file);
159 if (hw->used >= 2)
160 return -EBUSY;
161
162 if (!us122l->first)
163 us122l->first = file;
164
165 if (us122l->is_us144) {
166 iface = usb_ifnum_to_if(us122l->dev, 0);
167 usb_autopm_get_interface(iface);
168 }
169 iface = usb_ifnum_to_if(us122l->dev, 1);
170 usb_autopm_get_interface(iface);
171 return 0;
172}
173
174static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file)
175{
176 struct us122l *us122l = hw->private_data;
177 struct usb_interface *iface;
178
179 snd_printdd(KERN_DEBUG "%p %p\n", hw, file);
180
181 if (us122l->is_us144) {
182 iface = usb_ifnum_to_if(us122l->dev, 0);
183 usb_autopm_put_interface(iface);
184 }
185 iface = usb_ifnum_to_if(us122l->dev, 1);
186 usb_autopm_put_interface(iface);
187 if (us122l->first == file)
188 us122l->first = NULL;
189 mutex_lock(&us122l->mutex);
190 if (us122l->master == file)
191 us122l->master = us122l->slave;
192
193 us122l->slave = NULL;
194 mutex_unlock(&us122l->mutex);
195 return 0;
196}
197
198static int usb_stream_hwdep_mmap(struct snd_hwdep *hw,
199 struct file *filp, struct vm_area_struct *area)
200{
201 unsigned long size = area->vm_end - area->vm_start;
202 struct us122l *us122l = hw->private_data;
203 unsigned long offset;
204 struct usb_stream *s;
205 int err = 0;
206 bool read;
207
208 offset = area->vm_pgoff << PAGE_SHIFT;
209 mutex_lock(&us122l->mutex);
210 s = us122l->sk.s;
211 read = offset < s->read_size;
212 if (read && area->vm_flags & VM_WRITE) {
213 err = -EPERM;
214 goto out;
215 }
216 snd_printdd(KERN_DEBUG "%lu %u\n", size,
217 read ? s->read_size : s->write_size);
218
219 if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) {
220 snd_printk(KERN_WARNING "%lu > %u\n", size,
221 read ? s->read_size : s->write_size);
222 err = -EINVAL;
223 goto out;
224 }
225
226 area->vm_ops = &usb_stream_hwdep_vm_ops;
227 area->vm_flags |= VM_DONTDUMP;
228 if (!read)
229 area->vm_flags |= VM_DONTEXPAND;
230 area->vm_private_data = us122l;
231 atomic_inc(&us122l->mmap_count);
232out:
233 mutex_unlock(&us122l->mutex);
234 return err;
235}
236
237static __poll_t usb_stream_hwdep_poll(struct snd_hwdep *hw,
238 struct file *file, poll_table *wait)
239{
240 struct us122l *us122l = hw->private_data;
241 unsigned int *polled;
242 __poll_t mask;
243
244 poll_wait(file, &us122l->sk.sleep, wait);
245
246 mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM | EPOLLERR;
247 if (mutex_trylock(&us122l->mutex)) {
248 struct usb_stream *s = us122l->sk.s;
249
250 if (s && s->state == usb_stream_ready) {
251 if (us122l->first == file)
252 polled = &s->periods_polled;
253 else
254 polled = &us122l->second_periods_polled;
255 if (*polled != s->periods_done) {
256 *polled = s->periods_done;
257 mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM;
258 } else {
259 mask = 0;
260 }
261 }
262 mutex_unlock(&us122l->mutex);
263 }
264 return mask;
265}
266
267static void us122l_stop(struct us122l *us122l)
268{
269 struct list_head *p;
270
271 list_for_each(p, &us122l->midi_list)
272 snd_usbmidi_input_stop(p);
273
274 usb_stream_stop(&us122l->sk);
275 usb_stream_free(&us122l->sk);
276}
277
278static int us122l_set_sample_rate(struct usb_device *dev, int rate)
279{
280 unsigned int ep = 0x81;
281 unsigned char data[3];
282 int err;
283
284 data[0] = rate;
285 data[1] = rate >> 8;
286 data[2] = rate >> 16;
287 err = usb_control_msg_send(dev, 0, UAC_SET_CUR,
288 USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
289 UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3,
290 1000, GFP_NOIO);
291 if (err)
292 snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n",
293 dev->devnum, rate, ep);
294 return err;
295}
296
297static bool us122l_start(struct us122l *us122l,
298 unsigned int rate, unsigned int period_frames)
299{
300 struct list_head *p;
301 int err;
302 unsigned int use_packsize = 0;
303 bool success = false;
304
305 if (us122l->dev->speed == USB_SPEED_HIGH) {
306
307
308
309
310 switch (rate) {
311 case 44100:
312 use_packsize = 36;
313 break;
314 case 48000:
315 use_packsize = 42;
316 break;
317 case 88200:
318 use_packsize = 72;
319 break;
320 }
321 }
322 if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2,
323 rate, use_packsize, period_frames, 6))
324 goto out;
325
326 err = us122l_set_sample_rate(us122l->dev, rate);
327 if (err < 0) {
328 us122l_stop(us122l);
329 snd_printk(KERN_ERR "us122l_set_sample_rate error\n");
330 goto out;
331 }
332 err = usb_stream_start(&us122l->sk);
333 if (err < 0) {
334 us122l_stop(us122l);
335 snd_printk(KERN_ERR "%s error %i\n", __func__, err);
336 goto out;
337 }
338 list_for_each(p, &us122l->midi_list)
339 snd_usbmidi_input_start(p);
340 success = true;
341out:
342 return success;
343}
344
345static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
346 unsigned int cmd, unsigned long arg)
347{
348 struct usb_stream_config cfg;
349 struct us122l *us122l = hw->private_data;
350 struct usb_stream *s;
351 unsigned int min_period_frames;
352 int err = 0;
353 bool high_speed;
354
355 if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS)
356 return -ENOTTY;
357
358 if (copy_from_user(&cfg, (void __user *)arg, sizeof(cfg)))
359 return -EFAULT;
360
361 if (cfg.version != USB_STREAM_INTERFACE_VERSION)
362 return -ENXIO;
363
364 high_speed = us122l->dev->speed == USB_SPEED_HIGH;
365 if ((cfg.sample_rate != 44100 && cfg.sample_rate != 48000 &&
366 (!high_speed ||
367 (cfg.sample_rate != 88200 && cfg.sample_rate != 96000))) ||
368 cfg.frame_size != 6 ||
369 cfg.period_frames > 0x3000)
370 return -EINVAL;
371
372 switch (cfg.sample_rate) {
373 case 44100:
374 min_period_frames = 48;
375 break;
376 case 48000:
377 min_period_frames = 52;
378 break;
379 default:
380 min_period_frames = 104;
381 break;
382 }
383 if (!high_speed)
384 min_period_frames <<= 1;
385 if (cfg.period_frames < min_period_frames)
386 return -EINVAL;
387
388 snd_power_wait(hw->card);
389
390 mutex_lock(&us122l->mutex);
391 s = us122l->sk.s;
392 if (!us122l->master) {
393 us122l->master = file;
394 } else if (us122l->master != file) {
395 if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg))) {
396 err = -EIO;
397 goto unlock;
398 }
399 us122l->slave = file;
400 }
401 if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg)) ||
402 s->state == usb_stream_xrun) {
403 us122l_stop(us122l);
404 if (!us122l_start(us122l, cfg.sample_rate, cfg.period_frames))
405 err = -EIO;
406 else
407 err = 1;
408 }
409unlock:
410 mutex_unlock(&us122l->mutex);
411 wake_up_all(&us122l->sk.sleep);
412 return err;
413}
414
415#define SND_USB_STREAM_ID "USB STREAM"
416static int usb_stream_hwdep_new(struct snd_card *card)
417{
418 int err;
419 struct snd_hwdep *hw;
420 struct usb_device *dev = US122L(card)->dev;
421
422 err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw);
423 if (err < 0)
424 return err;
425
426 hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM;
427 hw->private_data = US122L(card);
428 hw->ops.open = usb_stream_hwdep_open;
429 hw->ops.release = usb_stream_hwdep_release;
430 hw->ops.ioctl = usb_stream_hwdep_ioctl;
431 hw->ops.ioctl_compat = usb_stream_hwdep_ioctl;
432 hw->ops.mmap = usb_stream_hwdep_mmap;
433 hw->ops.poll = usb_stream_hwdep_poll;
434
435 sprintf(hw->name, "/dev/bus/usb/%03d/%03d/hwdeppcm",
436 dev->bus->busnum, dev->devnum);
437 return 0;
438}
439
440static bool us122l_create_card(struct snd_card *card)
441{
442 int err;
443 struct us122l *us122l = US122L(card);
444
445 if (us122l->is_us144) {
446 err = usb_set_interface(us122l->dev, 0, 1);
447 if (err) {
448 snd_printk(KERN_ERR "usb_set_interface error\n");
449 return false;
450 }
451 }
452 err = usb_set_interface(us122l->dev, 1, 1);
453 if (err) {
454 snd_printk(KERN_ERR "usb_set_interface error\n");
455 return false;
456 }
457
458 pt_info_set(us122l->dev, 0x11);
459 pt_info_set(us122l->dev, 0x10);
460
461 if (!us122l_start(us122l, 44100, 256))
462 return false;
463
464 if (us122l->is_us144)
465 err = us144_create_usbmidi(card);
466 else
467 err = us122l_create_usbmidi(card);
468 if (err < 0) {
469 snd_printk(KERN_ERR "us122l_create_usbmidi error %i\n", err);
470 goto stop;
471 }
472 err = usb_stream_hwdep_new(card);
473 if (err < 0) {
474
475 struct list_head *p;
476
477 list_for_each(p, &us122l->midi_list)
478 snd_usbmidi_disconnect(p);
479
480 goto stop;
481 }
482 return true;
483
484stop:
485 us122l_stop(us122l);
486 return false;
487}
488
489static void snd_us122l_free(struct snd_card *card)
490{
491 struct us122l *us122l = US122L(card);
492 int index = us122l->card_index;
493
494 if (index >= 0 && index < SNDRV_CARDS)
495 snd_us122l_card_used[index] = 0;
496}
497
498static int usx2y_create_card(struct usb_device *device,
499 struct usb_interface *intf,
500 struct snd_card **cardp,
501 unsigned long flags)
502{
503 int dev;
504 struct snd_card *card;
505 int err;
506
507 for (dev = 0; dev < SNDRV_CARDS; ++dev)
508 if (enable[dev] && !snd_us122l_card_used[dev])
509 break;
510 if (dev >= SNDRV_CARDS)
511 return -ENODEV;
512 err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE,
513 sizeof(struct us122l), &card);
514 if (err < 0)
515 return err;
516 snd_us122l_card_used[US122L(card)->card_index = dev] = 1;
517 card->private_free = snd_us122l_free;
518 US122L(card)->dev = device;
519 mutex_init(&US122L(card)->mutex);
520 init_waitqueue_head(&US122L(card)->sk.sleep);
521 US122L(card)->is_us144 = flags & US122L_FLAG_US144;
522 INIT_LIST_HEAD(&US122L(card)->midi_list);
523 strcpy(card->driver, "USB "NAME_ALLCAPS"");
524 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
525 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
526 card->shortname,
527 le16_to_cpu(device->descriptor.idVendor),
528 le16_to_cpu(device->descriptor.idProduct),
529 0,
530 US122L(card)->dev->bus->busnum,
531 US122L(card)->dev->devnum
532 );
533 *cardp = card;
534 return 0;
535}
536
537static int us122l_usb_probe(struct usb_interface *intf,
538 const struct usb_device_id *device_id,
539 struct snd_card **cardp)
540{
541 struct usb_device *device = interface_to_usbdev(intf);
542 struct snd_card *card;
543 int err;
544
545 err = usx2y_create_card(device, intf, &card, device_id->driver_info);
546 if (err < 0)
547 return err;
548
549 if (!us122l_create_card(card)) {
550 snd_card_free(card);
551 return -EINVAL;
552 }
553
554 err = snd_card_register(card);
555 if (err < 0) {
556 snd_card_free(card);
557 return err;
558 }
559
560 usb_get_intf(usb_ifnum_to_if(device, 0));
561 usb_get_dev(device);
562 *cardp = card;
563 return 0;
564}
565
566static int snd_us122l_probe(struct usb_interface *intf,
567 const struct usb_device_id *id)
568{
569 struct usb_device *device = interface_to_usbdev(intf);
570 struct snd_card *card;
571 int err;
572
573 if (id->driver_info & US122L_FLAG_US144 &&
574 device->speed == USB_SPEED_HIGH) {
575 snd_printk(KERN_ERR "disable ehci-hcd to run US-144\n");
576 return -ENODEV;
577 }
578
579 snd_printdd(KERN_DEBUG"%p:%i\n",
580 intf, intf->cur_altsetting->desc.bInterfaceNumber);
581 if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
582 return 0;
583
584 err = us122l_usb_probe(usb_get_intf(intf), id, &card);
585 if (err < 0) {
586 usb_put_intf(intf);
587 return err;
588 }
589
590 usb_set_intfdata(intf, card);
591 return 0;
592}
593
594static void snd_us122l_disconnect(struct usb_interface *intf)
595{
596 struct snd_card *card;
597 struct us122l *us122l;
598 struct list_head *p;
599
600 card = usb_get_intfdata(intf);
601 if (!card)
602 return;
603
604 snd_card_disconnect(card);
605
606 us122l = US122L(card);
607 mutex_lock(&us122l->mutex);
608 us122l_stop(us122l);
609 mutex_unlock(&us122l->mutex);
610
611
612 list_for_each(p, &us122l->midi_list) {
613 snd_usbmidi_disconnect(p);
614 }
615
616 usb_put_intf(usb_ifnum_to_if(us122l->dev, 0));
617 usb_put_intf(usb_ifnum_to_if(us122l->dev, 1));
618 usb_put_dev(us122l->dev);
619
620 while (atomic_read(&us122l->mmap_count))
621 msleep(500);
622
623 snd_card_free(card);
624}
625
626static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message)
627{
628 struct snd_card *card;
629 struct us122l *us122l;
630 struct list_head *p;
631
632 card = usb_get_intfdata(intf);
633 if (!card)
634 return 0;
635 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
636
637 us122l = US122L(card);
638 if (!us122l)
639 return 0;
640
641 list_for_each(p, &us122l->midi_list)
642 snd_usbmidi_input_stop(p);
643
644 mutex_lock(&us122l->mutex);
645 usb_stream_stop(&us122l->sk);
646 mutex_unlock(&us122l->mutex);
647
648 return 0;
649}
650
651static int snd_us122l_resume(struct usb_interface *intf)
652{
653 struct snd_card *card;
654 struct us122l *us122l;
655 struct list_head *p;
656 int err;
657
658 card = usb_get_intfdata(intf);
659 if (!card)
660 return 0;
661
662 us122l = US122L(card);
663 if (!us122l)
664 return 0;
665
666 mutex_lock(&us122l->mutex);
667
668 if (us122l->is_us144) {
669 err = usb_set_interface(us122l->dev, 0, 1);
670 if (err) {
671 snd_printk(KERN_ERR "usb_set_interface error\n");
672 goto unlock;
673 }
674 }
675 err = usb_set_interface(us122l->dev, 1, 1);
676 if (err) {
677 snd_printk(KERN_ERR "usb_set_interface error\n");
678 goto unlock;
679 }
680
681 pt_info_set(us122l->dev, 0x11);
682 pt_info_set(us122l->dev, 0x10);
683
684 err = us122l_set_sample_rate(us122l->dev,
685 us122l->sk.s->cfg.sample_rate);
686 if (err < 0) {
687 snd_printk(KERN_ERR "us122l_set_sample_rate error\n");
688 goto unlock;
689 }
690 err = usb_stream_start(&us122l->sk);
691 if (err)
692 goto unlock;
693
694 list_for_each(p, &us122l->midi_list)
695 snd_usbmidi_input_start(p);
696unlock:
697 mutex_unlock(&us122l->mutex);
698 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
699 return err;
700}
701
702static const struct usb_device_id snd_us122l_usb_id_table[] = {
703 {
704 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
705 .idVendor = 0x0644,
706 .idProduct = USB_ID_US122L
707 },
708 {
709 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
710 .idVendor = 0x0644,
711 .idProduct = USB_ID_US144,
712 .driver_info = US122L_FLAG_US144
713 },
714 {
715 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
716 .idVendor = 0x0644,
717 .idProduct = USB_ID_US122MKII
718 },
719 {
720 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
721 .idVendor = 0x0644,
722 .idProduct = USB_ID_US144MKII,
723 .driver_info = US122L_FLAG_US144
724 },
725 { }
726};
727MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table);
728
729static struct usb_driver snd_us122l_usb_driver = {
730 .name = "snd-usb-us122l",
731 .probe = snd_us122l_probe,
732 .disconnect = snd_us122l_disconnect,
733 .suspend = snd_us122l_suspend,
734 .resume = snd_us122l_resume,
735 .reset_resume = snd_us122l_resume,
736 .id_table = snd_us122l_usb_id_table,
737 .supports_autosuspend = 1
738};
739
740module_usb_driver(snd_us122l_usb_driver);
741
