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Linux v2.6.13
[linux-2.6/next.git] / sound / usb / usx2y / usbusx2y.c
blobe6e6da1596712633b0383293fd3203a066b37d0b
1 /*
2 * usbusy2y.c - ALSA USB US-428 Driver
3 *
4 2005-04-14 Karsten Wiese
5 Version 0.8.7.2:
6 Call snd_card_free() instead of snd_card_free_in_thread() to prevent oops with dead keyboard symptom.
7 Tested ok with kernel 2.6.12-rc2.
8
9 2004-12-14 Karsten Wiese
10 Version 0.8.7.1:
11 snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open.
12
13 2004-12-02 Karsten Wiese
14 Version 0.8.7:
15 Use macro usb_maxpacket() for portability.
16
17 2004-10-26 Karsten Wiese
18 Version 0.8.6:
19 wake_up() process waiting in usX2Y_urbs_start() on error.
20
21 2004-10-21 Karsten Wiese
22 Version 0.8.5:
23 nrpacks is runtime or compiletime configurable now with tested values from 1 to 4.
24
25 2004-10-03 Karsten Wiese
26 Version 0.8.2:
27 Avoid any possible racing while in prepare callback.
28
29 2004-09-30 Karsten Wiese
30 Version 0.8.0:
31 Simplified things and made ohci work again.
32
33 2004-09-20 Karsten Wiese
34 Version 0.7.3:
35 Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb().
36
37 2004-07-13 Karsten Wiese
38 Version 0.7.1:
39 Don't sleep in START/STOP callbacks anymore.
40 us428 channels C/D not handled just for this version, sorry.
41
42 2004-06-21 Karsten Wiese
43 Version 0.6.4:
44 Temporarely suspend midi input
45 to sanely call usb_set_interface() when setting format.
46
47 2004-06-12 Karsten Wiese
48 Version 0.6.3:
49 Made it thus the following rule is enforced:
50 "All pcm substreams of one usX2Y have to operate at the same rate & format."
51
52 2004-04-06 Karsten Wiese
53 Version 0.6.0:
54 Runs on 2.6.5 kernel without any "--with-debug=" things.
55 us224 reported running.
56
57 2004-01-14 Karsten Wiese
58 Version 0.5.1:
59 Runs with 2.6.1 kernel.
60
61 2003-12-30 Karsten Wiese
62 Version 0.4.1:
63 Fix 24Bit 4Channel capturing for the us428.
64
65 2003-11-27 Karsten Wiese, Martin Langer
66 Version 0.4:
67 us122 support.
68 us224 could be tested by uncommenting the sections containing USB_ID_US224
69
70 2003-11-03 Karsten Wiese
71 Version 0.3:
72 24Bit support.
73 "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.
74
75 2003-08-22 Karsten Wiese
76 Version 0.0.8:
77 Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader.
78 See:
79 http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz
80
81 2003-06-18 Karsten Wiese
82 Version 0.0.5:
83 changed to compile with kernel 2.4.21 and alsa 0.9.4
84
85 2002-10-16 Karsten Wiese
86 Version 0.0.4:
87 compiles again with alsa-current.
88 USB_ISO_ASAP not used anymore (most of the time), instead
89 urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore.
90
91 To get the best out of this:
92 Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds.
93 This helped me much on my slowish PII 400 & PIII 500.
94 ACPI yet untested but might cause the same bad behaviour.
95 Use a kernel with lowlatency and preemptiv patches applied.
96 To autoload snd-usb-midi append a line
97 post-install snd-usb-us428 modprobe snd-usb-midi
98 to /etc/modules.conf.
99
100 known problems:
101 sliders, knobs, lights not yet handled except MASTER Volume slider.
102 "pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does.
103 KDE3: "Enable full duplex operation" deadlocks.
104
105
106 2002-08-31 Karsten Wiese
107 Version 0.0.3: audio also simplex;
108 simplifying: iso urbs only 1 packet, melted structs.
109 ASYNC_UNLINK not used anymore: no more crashes so far.....
110 for alsa 0.9 rc3.
111
112 2002-08-09 Karsten Wiese
113 Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol.
114 The firmware has been sniffed from win2k us-428 driver 3.09.
115
116 * Copyright (c) 2002 - 2004 Karsten Wiese
117 *
118 * This program is free software; you can redistribute it and/or modify
119 * it under the terms of the GNU General Public License as published by
120 * the Free Software Foundation; either version 2 of the License, or
121 * (at your option) any later version.
122 *
123 * This program is distributed in the hope that it will be useful,
124 * but WITHOUT ANY WARRANTY; without even the implied warranty of
125 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
126 * GNU General Public License for more details.
127 *
128 * You should have received a copy of the GNU General Public License
129 * along with this program; if not, write to the Free Software
130 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
131 */
132
133 #include <sound/driver.h>
134 #include <linux/init.h>
135 #include <linux/module.h>
136 #include <linux/moduleparam.h>
137 #include <linux/interrupt.h>
138 #include <linux/usb.h>
139 #include <sound/core.h>
140 #include <sound/initval.h>
141 #include <sound/pcm.h>
142
143 #include <sound/rawmidi.h>
144 #include "usx2y.h"
145 #include "usbusx2y.h"
146 #include "usX2Yhwdep.h"
147
148
149
150 MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
151 MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.2");
152 MODULE_LICENSE("GPL");
153 MODULE_SUPPORTED_DEVICE("{{TASCAM(0x1604), "NAME_ALLCAPS"(0x8001)(0x8005)(0x8007) }}");
154
155 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
156 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
157 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
158
159 module_param_array(index, int, NULL, 0444);
160 MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
161 module_param_array(id, charp, NULL, 0444);
162 MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
163 module_param_array(enable, bool, NULL, 0444);
164 MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
165
166
167 static int snd_usX2Y_card_used[SNDRV_CARDS];
168
169 static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr);
170 static void snd_usX2Y_card_private_free(snd_card_t *card);
171
172 /*
173 * pipe 4 is used for switching the lamps, setting samplerate, volumes ....
174 */
175 static void i_usX2Y_Out04Int(struct urb* urb, struct pt_regs *regs)
176 {
177 #ifdef CONFIG_SND_DEBUG
178 if (urb->status) {
179 int i;
180 usX2Ydev_t* usX2Y = urb->context;
181 for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++);
182 snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status);
183 }
184 #endif
185 }
186
187 static void i_usX2Y_In04Int(struct urb* urb, struct pt_regs *regs)
188 {
189 int err = 0;
190 usX2Ydev_t *usX2Y = urb->context;
191 us428ctls_sharedmem_t *us428ctls = usX2Y->us428ctls_sharedmem;
192
193 usX2Y->In04IntCalls++;
194
195 if (urb->status) {
196 snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status);
197 return;
198 }
199
200 // printk("%i:0x%02X ", 8, (int)((unsigned char*)usX2Y->In04Buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
201 if (us428ctls) {
202 int diff = -1;
203 if (-2 == us428ctls->CtlSnapShotLast) {
204 diff = 0;
205 memcpy(usX2Y->In04Last, usX2Y->In04Buf, sizeof(usX2Y->In04Last));
206 us428ctls->CtlSnapShotLast = -1;
207 } else {
208 int i;
209 for (i = 0; i < 21; i++) {
210 if (usX2Y->In04Last[i] != ((char*)usX2Y->In04Buf)[i]) {
211 if (diff < 0)
212 diff = i;
213 usX2Y->In04Last[i] = ((char*)usX2Y->In04Buf)[i];
214 }
215 }
216 }
217 if (0 <= diff) {
218 int n = us428ctls->CtlSnapShotLast + 1;
219 if (n >= N_us428_ctl_BUFS || n < 0)
220 n = 0;
221 memcpy(us428ctls->CtlSnapShot + n, usX2Y->In04Buf, sizeof(us428ctls->CtlSnapShot[0]));
222 us428ctls->CtlSnapShotDiffersAt[n] = diff;
223 us428ctls->CtlSnapShotLast = n;
224 wake_up(&usX2Y->us428ctls_wait_queue_head);
225 }
226 }
227
228
229 if (usX2Y->US04) {
230 if (0 == usX2Y->US04->submitted)
231 do
232 err = usb_submit_urb(usX2Y->US04->urb[usX2Y->US04->submitted++], GFP_ATOMIC);
233 while (!err && usX2Y->US04->submitted < usX2Y->US04->len);
234 } else
235 if (us428ctls && us428ctls->p4outLast >= 0 && us428ctls->p4outLast < N_us428_p4out_BUFS) {
236 if (us428ctls->p4outLast != us428ctls->p4outSent) {
237 int j, send = us428ctls->p4outSent + 1;
238 if (send >= N_us428_p4out_BUFS)
239 send = 0;
240 for (j = 0; j < URBS_AsyncSeq && !err; ++j)
241 if (0 == usX2Y->AS04.urb[j]->status) {
242 us428_p4out_t *p4out = us428ctls->p4out + send; // FIXME if more then 1 p4out is new, 1 gets lost.
243 usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->chip.dev,
244 usb_sndbulkpipe(usX2Y->chip.dev, 0x04), &p4out->val.vol,
245 p4out->type == eLT_Light ? sizeof(us428_lights_t) : 5,
246 i_usX2Y_Out04Int, usX2Y);
247 err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC);
248 us428ctls->p4outSent = send;
249 break;
250 }
251 }
252 }
253
254 if (err) {
255 snd_printk("In04Int() usb_submit_urb err=%i\n", err);
256 }
257
258 urb->dev = usX2Y->chip.dev;
259 usb_submit_urb(urb, GFP_ATOMIC);
260 }
261
262 /*
263 * Prepare some urbs
264 */
265 int usX2Y_AsyncSeq04_init(usX2Ydev_t* usX2Y)
266 {
267 int err = 0,
268 i;
269
270 if (NULL == (usX2Y->AS04.buffer = kmalloc(URB_DataLen_AsyncSeq*URBS_AsyncSeq, GFP_KERNEL))) {
271 err = -ENOMEM;
272 } else
273 for (i = 0; i < URBS_AsyncSeq; ++i) {
274 if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
275 err = -ENOMEM;
276 break;
277 }
278 usb_fill_bulk_urb( usX2Y->AS04.urb[i], usX2Y->chip.dev,
279 usb_sndbulkpipe(usX2Y->chip.dev, 0x04),
280 usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
281 i_usX2Y_Out04Int, usX2Y
282 );
283 }
284 return err;
285 }
286
287 int usX2Y_In04_init(usX2Ydev_t* usX2Y)
288 {
289 int err = 0;
290 if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL)))
291 return -ENOMEM;
292
293 if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) {
294 usb_free_urb(usX2Y->In04urb);
295 return -ENOMEM;
296 }
297
298 init_waitqueue_head(&usX2Y->In04WaitQueue);
299 usb_fill_int_urb(usX2Y->In04urb, usX2Y->chip.dev, usb_rcvintpipe(usX2Y->chip.dev, 0x4),
300 usX2Y->In04Buf, 21,
301 i_usX2Y_In04Int, usX2Y,
302 10);
303 err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
304 return err;
305 }
306
307 static void usX2Y_unlinkSeq(snd_usX2Y_AsyncSeq_t* S)
308 {
309 int i;
310 for (i = 0; i < URBS_AsyncSeq; ++i) {
311 if (S[i].urb) {
312 usb_kill_urb(S->urb[i]);
313 usb_free_urb(S->urb[i]);
314 S->urb[i] = NULL;
315 }
316 }
317 kfree(S->buffer);
318 }
319
320
321 static struct usb_device_id snd_usX2Y_usb_id_table[] = {
322 {
323 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
324 .idVendor = 0x1604,
325 .idProduct = USB_ID_US428
326 },
327 {
328 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
329 .idVendor = 0x1604,
330 .idProduct = USB_ID_US122
331 },
332 {
333 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
334 .idVendor = 0x1604,
335 .idProduct = USB_ID_US224
336 },
337 { /* terminator */ }
338 };
339
340 static snd_card_t* usX2Y_create_card(struct usb_device* device)
341 {
342 int dev;
343 snd_card_t* card;
344 for (dev = 0; dev < SNDRV_CARDS; ++dev)
345 if (enable[dev] && !snd_usX2Y_card_used[dev])
346 break;
347 if (dev >= SNDRV_CARDS)
348 return NULL;
349 card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(usX2Ydev_t));
350 if (!card)
351 return NULL;
352 snd_usX2Y_card_used[usX2Y(card)->chip.index = dev] = 1;
353 card->private_free = snd_usX2Y_card_private_free;
354 usX2Y(card)->chip.dev = device;
355 usX2Y(card)->chip.card = card;
356 init_waitqueue_head(&usX2Y(card)->prepare_wait_queue);
357 init_MUTEX (&usX2Y(card)->prepare_mutex);
358 INIT_LIST_HEAD(&usX2Y(card)->chip.midi_list);
359 strcpy(card->driver, "USB "NAME_ALLCAPS"");
360 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
361 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
362 card->shortname,
363 le16_to_cpu(device->descriptor.idVendor),
364 le16_to_cpu(device->descriptor.idProduct),
365 0,//us428(card)->usbmidi.ifnum,
366 usX2Y(card)->chip.dev->bus->busnum, usX2Y(card)->chip.dev->devnum
367 );
368 snd_card_set_dev(card, &device->dev);
369 return card;
370 }
371
372
373 static void* usX2Y_usb_probe(struct usb_device* device, struct usb_interface *intf, const struct usb_device_id* device_id)
374 {
375 int err;
376 snd_card_t* card;
377 if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 ||
378 (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 &&
379 le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 &&
380 le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428) ||
381 !(card = usX2Y_create_card(device)))
382 return NULL;
383 if ((err = usX2Y_hwdep_new(card, device)) < 0 ||
384 (err = snd_card_register(card)) < 0) {
385 snd_card_free(card);
386 return NULL;
387 }
388 return card;
389 }
390
391 /*
392 * new 2.5 USB kernel API
393 */
394 static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id)
395 {
396 void *chip;
397 chip = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id);
398 if (chip) {
399 dev_set_drvdata(&intf->dev, chip);
400 return 0;
401 } else
402 return -EIO;
403 }
404
405 static void snd_usX2Y_disconnect(struct usb_interface *intf)
406 {
407 usX2Y_usb_disconnect(interface_to_usbdev(intf),
408 dev_get_drvdata(&intf->dev));
409 }
410
411 MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table);
412 static struct usb_driver snd_usX2Y_usb_driver = {
413 .owner = THIS_MODULE,
414 .name = "snd-usb-usx2y",
415 .probe = snd_usX2Y_probe,
416 .disconnect = snd_usX2Y_disconnect,
417 .id_table = snd_usX2Y_usb_id_table,
418 };
419
420 static void snd_usX2Y_card_private_free(snd_card_t *card)
421 {
422 kfree(usX2Y(card)->In04Buf);
423 usb_free_urb(usX2Y(card)->In04urb);
424 if (usX2Y(card)->us428ctls_sharedmem)
425 snd_free_pages(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem));
426 if (usX2Y(card)->chip.index >= 0 && usX2Y(card)->chip.index < SNDRV_CARDS)
427 snd_usX2Y_card_used[usX2Y(card)->chip.index] = 0;
428 }
429
430 /*
431 * Frees the device.
432 */
433 static void usX2Y_usb_disconnect(struct usb_device* device, void* ptr)
434 {
435 if (ptr) {
436 usX2Ydev_t* usX2Y = usX2Y((snd_card_t*)ptr);
437 struct list_head* p;
438 usX2Y->chip.shutdown = 1;
439 usX2Y->chip_status = USX2Y_STAT_CHIP_HUP;
440 usX2Y_unlinkSeq(&usX2Y->AS04);
441 usb_kill_urb(usX2Y->In04urb);
442 snd_card_disconnect((snd_card_t*)ptr);
443 /* release the midi resources */
444 list_for_each(p, &usX2Y->chip.midi_list) {
445 snd_usbmidi_disconnect(p);
446 }
447 if (usX2Y->us428ctls_sharedmem)
448 wake_up(&usX2Y->us428ctls_wait_queue_head);
449 snd_card_free((snd_card_t*)ptr);
450 }
451 }
452
453 static int __init snd_usX2Y_module_init(void)
454 {
455 return usb_register(&snd_usX2Y_usb_driver);
456 }
457
458 static void __exit snd_usX2Y_module_exit(void)
459 {
460 usb_deregister(&snd_usX2Y_usb_driver);
461 }
462
463 module_init(snd_usX2Y_module_init)
464 module_exit(snd_usX2Y_module_exit)
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