1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * usbusy2y.c - ALSA USB US-428 Driver
5 2005-04-14 Karsten Wiese
7 Call snd_card_free() instead of snd_card_free_in_thread() to prevent oops with dead keyboard symptom.
8 Tested ok with kernel 2.6.12-rc2.
10 2004-12-14 Karsten Wiese
12 snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open.
14 2004-12-02 Karsten Wiese
16 Use macro usb_maxpacket() for portability.
18 2004-10-26 Karsten Wiese
20 wake_up() process waiting in usx2y_urbs_start() on error.
22 2004-10-21 Karsten Wiese
24 nrpacks is runtime or compiletime configurable now with tested values from 1 to 4.
26 2004-10-03 Karsten Wiese
28 Avoid any possible racing while in prepare callback.
30 2004-09-30 Karsten Wiese
32 Simplified things and made ohci work again.
34 2004-09-20 Karsten Wiese
36 Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb().
38 2004-07-13 Karsten Wiese
40 Don't sleep in START/STOP callbacks anymore.
41 us428 channels C/D not handled just for this version, sorry.
43 2004-06-21 Karsten Wiese
45 Temporarely suspend midi input
46 to sanely call usb_set_interface() when setting format.
48 2004-06-12 Karsten Wiese
50 Made it thus the following rule is enforced:
51 "All pcm substreams of one usx2y have to operate at the same rate & format."
53 2004-04-06 Karsten Wiese
55 Runs on 2.6.5 kernel without any "--with-debug=" things.
56 us224 reported running.
58 2004-01-14 Karsten Wiese
60 Runs with 2.6.1 kernel.
62 2003-12-30 Karsten Wiese
64 Fix 24Bit 4Channel capturing for the us428.
66 2003-11-27 Karsten Wiese, Martin Langer
69 us224 could be tested by uncommenting the sections containing USB_ID_US224
71 2003-11-03 Karsten Wiese
74 "arecord -D hw:1 -c 2 -r 48000 -M -f S24_3LE|aplay -D hw:1 -c 2 -r 48000 -M -f S24_3LE" works.
76 2003-08-22 Karsten Wiese
78 Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader.
80 http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz
82 2003-06-18 Karsten Wiese
84 changed to compile with kernel 2.4.21 and alsa 0.9.4
86 2002-10-16 Karsten Wiese
88 compiles again with alsa-current.
89 USB_ISO_ASAP not used anymore (most of the time), instead
90 urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore.
92 To get the best out of this:
93 Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds.
94 This helped me much on my slowish PII 400 & PIII 500.
95 ACPI yet untested but might cause the same bad behaviour.
96 Use a kernel with lowlatency and preemptiv patches applied.
97 To autoload snd-usb-midi append a line
98 post-install snd-usb-us428 modprobe snd-usb-midi
102 sliders, knobs, lights not yet handled except MASTER Volume slider.
103 "pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does.
104 KDE3: "Enable full duplex operation" deadlocks.
107 2002-08-31 Karsten Wiese
108 Version 0.0.3: audio also simplex;
109 simplifying: iso urbs only 1 packet, melted structs.
110 ASYNC_UNLINK not used anymore: no more crashes so far.....
113 2002-08-09 Karsten Wiese
114 Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol.
115 The firmware has been sniffed from win2k us-428 driver 3.09.
117 * Copyright (c) 2002 - 2004 Karsten Wiese
120 #include <linux/init.h>
121 #include <linux/module.h>
122 #include <linux/moduleparam.h>
123 #include <linux/slab.h>
124 #include <linux/interrupt.h>
125 #include <linux/usb.h>
126 #include <sound/core.h>
127 #include <sound/initval.h>
128 #include <sound/pcm.h>
130 #include <sound/rawmidi.h>
132 #include "usbusx2y.h"
133 #include "usX2Yhwdep.h"
137 MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
138 MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.2");
139 MODULE_LICENSE("GPL");
140 MODULE_SUPPORTED_DEVICE("{{TASCAM(0x1604),"NAME_ALLCAPS"(0x8001)(0x8005)(0x8007)}}");
142 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
143 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
144 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
146 module_param_array(index, int, NULL, 0444);
147 MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
148 module_param_array(id, charp, NULL, 0444);
149 MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
150 module_param_array(enable, bool, NULL, 0444);
151 MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
154 static int snd_usx2y_card_used[SNDRV_CARDS];
156 static void usx2y_usb_disconnect(struct usb_device* usb_device, void* ptr);
157 static void snd_usx2y_card_private_free(struct snd_card *card);
160 * pipe 4 is used for switching the lamps, setting samplerate, volumes ....
162 static void i_usx2y_out04_int(struct urb *urb)
164 #ifdef CONFIG_SND_DEBUG
167 struct usx2ydev *usx2y = urb->context;
168 for (i = 0; i < 10 && usx2y->as04.urb[i] != urb; i++);
169 snd_printdd("i_usx2y_out04_int() urb %i status=%i\n", i, urb->status);
174 static void i_usx2y_in04_int(struct urb *urb)
177 struct usx2ydev *usx2y = urb->context;
178 struct us428ctls_sharedmem *us428ctls = usx2y->us428ctls_sharedmem;
180 usx2y->in04_int_calls++;
183 snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status);
187 // printk("%i:0x%02X ", 8, (int)((unsigned char*)usx2y->in04_buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
190 if (-2 == us428ctls->ctl_snapshot_last) {
192 memcpy(usx2y->in04_last, usx2y->in04_buf, sizeof(usx2y->in04_last));
193 us428ctls->ctl_snapshot_last = -1;
196 for (i = 0; i < 21; i++) {
197 if (usx2y->in04_last[i] != ((char*)usx2y->in04_buf)[i]) {
200 usx2y->in04_last[i] = ((char*)usx2y->in04_buf)[i];
205 int n = us428ctls->ctl_snapshot_last + 1;
206 if (n >= N_US428_CTL_BUFS || n < 0)
208 memcpy(us428ctls->ctl_snapshot + n, usx2y->in04_buf, sizeof(us428ctls->ctl_snapshot[0]));
209 us428ctls->ctl_snapshot_differs_at[n] = diff;
210 us428ctls->ctl_snapshot_last = n;
211 wake_up(&usx2y->us428ctls_wait_queue_head);
217 if (0 == usx2y->us04->submitted)
219 err = usb_submit_urb(usx2y->us04->urb[usx2y->us04->submitted++], GFP_ATOMIC);
220 } while (!err && usx2y->us04->submitted < usx2y->us04->len);
222 if (us428ctls && us428ctls->p4out_last >= 0 && us428ctls->p4out_last < N_US428_P4OUT_BUFS) {
223 if (us428ctls->p4out_last != us428ctls->p4out_sent) {
224 int j, send = us428ctls->p4out_sent + 1;
225 if (send >= N_US428_P4OUT_BUFS)
227 for (j = 0; j < URBS_ASYNC_SEQ && !err; ++j)
228 if (0 == usx2y->as04.urb[j]->status) {
229 struct us428_p4out *p4out = us428ctls->p4out + send; // FIXME if more than 1 p4out is new, 1 gets lost.
230 usb_fill_bulk_urb(usx2y->as04.urb[j], usx2y->dev,
231 usb_sndbulkpipe(usx2y->dev, 0x04), &p4out->val.vol,
232 p4out->type == ELT_LIGHT ? sizeof(struct us428_lights) : 5,
233 i_usx2y_out04_int, usx2y);
234 err = usb_submit_urb(usx2y->as04.urb[j], GFP_ATOMIC);
235 us428ctls->p4out_sent = send;
242 snd_printk(KERN_ERR "in04_int() usb_submit_urb err=%i\n", err);
244 urb->dev = usx2y->dev;
245 usb_submit_urb(urb, GFP_ATOMIC);
251 int usx2y_async_seq04_init(struct usx2ydev *usx2y)
256 usx2y->as04.buffer = kmalloc_array(URBS_ASYNC_SEQ,
257 URB_DATA_LEN_ASYNC_SEQ, GFP_KERNEL);
258 if (NULL == usx2y->as04.buffer) {
261 for (i = 0; i < URBS_ASYNC_SEQ; ++i) {
262 if (NULL == (usx2y->as04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
266 usb_fill_bulk_urb( usx2y->as04.urb[i], usx2y->dev,
267 usb_sndbulkpipe(usx2y->dev, 0x04),
268 usx2y->as04.buffer + URB_DATA_LEN_ASYNC_SEQ*i, 0,
269 i_usx2y_out04_int, usx2y
271 err = usb_urb_ep_type_check(usx2y->as04.urb[i]);
278 int usx2y_in04_init(struct usx2ydev *usx2y)
280 if (! (usx2y->in04_urb = usb_alloc_urb(0, GFP_KERNEL)))
283 if (! (usx2y->in04_buf = kmalloc(21, GFP_KERNEL)))
286 init_waitqueue_head(&usx2y->in04_wait_queue);
287 usb_fill_int_urb(usx2y->in04_urb, usx2y->dev, usb_rcvintpipe(usx2y->dev, 0x4),
289 i_usx2y_in04_int, usx2y,
291 if (usb_urb_ep_type_check(usx2y->in04_urb))
293 return usb_submit_urb(usx2y->in04_urb, GFP_KERNEL);
296 static void usx2y_unlinkseq(struct snd_usx2y_async_seq *s)
299 for (i = 0; i < URBS_ASYNC_SEQ; ++i) {
300 usb_kill_urb(s->urb[i]);
301 usb_free_urb(s->urb[i]);
308 static const struct usb_device_id snd_usx2y_usb_id_table[] = {
310 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
312 .idProduct = USB_ID_US428
315 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
317 .idProduct = USB_ID_US122
320 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
322 .idProduct = USB_ID_US224
327 static int usx2y_create_card(struct usb_device *device,
328 struct usb_interface *intf,
329 struct snd_card **cardp)
332 struct snd_card * card;
335 for (dev = 0; dev < SNDRV_CARDS; ++dev)
336 if (enable[dev] && !snd_usx2y_card_used[dev])
338 if (dev >= SNDRV_CARDS)
340 err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE,
341 sizeof(struct usx2ydev), &card);
344 snd_usx2y_card_used[usx2y(card)->card_index = dev] = 1;
345 card->private_free = snd_usx2y_card_private_free;
346 usx2y(card)->dev = device;
347 init_waitqueue_head(&usx2y(card)->prepare_wait_queue);
348 mutex_init(&usx2y(card)->pcm_mutex);
349 INIT_LIST_HEAD(&usx2y(card)->midi_list);
350 strcpy(card->driver, "USB "NAME_ALLCAPS"");
351 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
352 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
354 le16_to_cpu(device->descriptor.idVendor),
355 le16_to_cpu(device->descriptor.idProduct),
356 0,//us428(card)->usbmidi.ifnum,
357 usx2y(card)->dev->bus->busnum, usx2y(card)->dev->devnum
364 static int usx2y_usb_probe(struct usb_device *device,
365 struct usb_interface *intf,
366 const struct usb_device_id *device_id,
367 struct snd_card **cardp)
370 struct snd_card * card;
373 if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 ||
374 (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 &&
375 le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 &&
376 le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428))
379 err = usx2y_create_card(device, intf, &card);
382 if ((err = usx2y_hwdep_new(card, device)) < 0 ||
383 (err = snd_card_register(card)) < 0) {
392 * new 2.5 USB kernel API
394 static int snd_usx2y_probe(struct usb_interface *intf, const struct usb_device_id *id)
396 struct snd_card *card;
399 err = usx2y_usb_probe(interface_to_usbdev(intf), intf, id, &card);
402 dev_set_drvdata(&intf->dev, card);
406 static void snd_usx2y_disconnect(struct usb_interface *intf)
408 usx2y_usb_disconnect(interface_to_usbdev(intf),
409 usb_get_intfdata(intf));
412 MODULE_DEVICE_TABLE(usb, snd_usx2y_usb_id_table);
413 static struct usb_driver snd_usx2y_usb_driver = {
414 .name = "snd-usb-usx2y",
415 .probe = snd_usx2y_probe,
416 .disconnect = snd_usx2y_disconnect,
417 .id_table = snd_usx2y_usb_id_table,
420 static void snd_usx2y_card_private_free(struct snd_card *card)
422 kfree(usx2y(card)->in04_buf);
423 usb_free_urb(usx2y(card)->in04_urb);
424 if (usx2y(card)->us428ctls_sharedmem)
425 free_pages_exact(usx2y(card)->us428ctls_sharedmem,
426 sizeof(*usx2y(card)->us428ctls_sharedmem));
427 if (usx2y(card)->card_index >= 0 && usx2y(card)->card_index < SNDRV_CARDS)
428 snd_usx2y_card_used[usx2y(card)->card_index] = 0;
434 static void usx2y_usb_disconnect(struct usb_device *device, void* ptr)
437 struct snd_card *card = ptr;
438 struct usx2ydev *usx2y = usx2y(card);
440 usx2y->chip_status = USX2Y_STAT_CHIP_HUP;
441 usx2y_unlinkseq(&usx2y->as04);
442 usb_kill_urb(usx2y->in04_urb);
443 snd_card_disconnect(card);
444 /* release the midi resources */
445 list_for_each(p, &usx2y->midi_list) {
446 snd_usbmidi_disconnect(p);
448 if (usx2y->us428ctls_sharedmem)
449 wake_up(&usx2y->us428ctls_wait_queue_head);
454 module_usb_driver(snd_usx2y_usb_driver);