ia64/linux-2.6.18-xen.hg

view sound/usb/usx2y/usbusx2y.c @ 890:2e94884f0e8d

Dom0 PCI: fix a regression introduced by the SR-IOV change

The device class may be changed during the early fixup. So need to
re-read the device class from pci_dev after the fixup.

The patch "PCI: centralize device setup code" (c/s 825) wrongly
cleaned up the device class re-read. This patch reverts that change.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Wed Jun 03 11:21:52 2009 +0100 (2009-06-03)
parents 831230e53067
children
line source
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.
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.
13 2004-12-02 Karsten Wiese
14 Version 0.8.7:
15 Use macro usb_maxpacket() for portability.
17 2004-10-26 Karsten Wiese
18 Version 0.8.6:
19 wake_up() process waiting in usX2Y_urbs_start() on error.
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.
25 2004-10-03 Karsten Wiese
26 Version 0.8.2:
27 Avoid any possible racing while in prepare callback.
29 2004-09-30 Karsten Wiese
30 Version 0.8.0:
31 Simplified things and made ohci work again.
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().
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.
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.
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."
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.
57 2004-01-14 Karsten Wiese
58 Version 0.5.1:
59 Runs with 2.6.1 kernel.
61 2003-12-30 Karsten Wiese
62 Version 0.4.1:
63 Fix 24Bit 4Channel capturing for the us428.
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
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.
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
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
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.
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.
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.
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.
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.
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 */
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>
143 #include <sound/rawmidi.h>
144 #include "usx2y.h"
145 #include "usbusx2y.h"
146 #include "usX2Yhwdep.h"
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) }}");
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 */
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".");
167 static int snd_usX2Y_card_used[SNDRV_CARDS];
169 static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr);
170 static void snd_usX2Y_card_private_free(struct snd_card *card);
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 struct usX2Ydev *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 }
187 static void i_usX2Y_In04Int(struct urb *urb, struct pt_regs *regs)
188 {
189 int err = 0;
190 struct usX2Ydev *usX2Y = urb->context;
191 struct us428ctls_sharedmem *us428ctls = usX2Y->us428ctls_sharedmem;
193 usX2Y->In04IntCalls++;
195 if (urb->status) {
196 snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status);
197 return;
198 }
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 }
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 struct us428_p4out *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(struct us428_lights) : 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 }
254 if (err)
255 snd_printk(KERN_ERR "In04Int() usb_submit_urb err=%i\n", err);
257 urb->dev = usX2Y->chip.dev;
258 usb_submit_urb(urb, GFP_ATOMIC);
259 }
261 /*
262 * Prepare some urbs
263 */
264 int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y)
265 {
266 int err = 0,
267 i;
269 if (NULL == (usX2Y->AS04.buffer = kmalloc(URB_DataLen_AsyncSeq*URBS_AsyncSeq, GFP_KERNEL))) {
270 err = -ENOMEM;
271 } else
272 for (i = 0; i < URBS_AsyncSeq; ++i) {
273 if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
274 err = -ENOMEM;
275 break;
276 }
277 usb_fill_bulk_urb( usX2Y->AS04.urb[i], usX2Y->chip.dev,
278 usb_sndbulkpipe(usX2Y->chip.dev, 0x04),
279 usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
280 i_usX2Y_Out04Int, usX2Y
281 );
282 }
283 return err;
284 }
286 int usX2Y_In04_init(struct usX2Ydev *usX2Y)
287 {
288 if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL)))
289 return -ENOMEM;
291 if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) {
292 usb_free_urb(usX2Y->In04urb);
293 return -ENOMEM;
294 }
296 init_waitqueue_head(&usX2Y->In04WaitQueue);
297 usb_fill_int_urb(usX2Y->In04urb, usX2Y->chip.dev, usb_rcvintpipe(usX2Y->chip.dev, 0x4),
298 usX2Y->In04Buf, 21,
299 i_usX2Y_In04Int, usX2Y,
300 10);
301 return usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
302 }
304 static void usX2Y_unlinkSeq(struct snd_usX2Y_AsyncSeq *S)
305 {
306 int i;
307 for (i = 0; i < URBS_AsyncSeq; ++i) {
308 if (S[i].urb) {
309 usb_kill_urb(S->urb[i]);
310 usb_free_urb(S->urb[i]);
311 S->urb[i] = NULL;
312 }
313 }
314 kfree(S->buffer);
315 }
318 static struct usb_device_id snd_usX2Y_usb_id_table[] = {
319 {
320 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
321 .idVendor = 0x1604,
322 .idProduct = USB_ID_US428
323 },
324 {
325 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
326 .idVendor = 0x1604,
327 .idProduct = USB_ID_US122
328 },
329 {
330 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
331 .idVendor = 0x1604,
332 .idProduct = USB_ID_US224
333 },
334 { /* terminator */ }
335 };
337 static struct snd_card *usX2Y_create_card(struct usb_device *device)
338 {
339 int dev;
340 struct snd_card * card;
341 for (dev = 0; dev < SNDRV_CARDS; ++dev)
342 if (enable[dev] && !snd_usX2Y_card_used[dev])
343 break;
344 if (dev >= SNDRV_CARDS)
345 return NULL;
346 card = snd_card_new(index[dev], id[dev], THIS_MODULE, sizeof(struct usX2Ydev));
347 if (!card)
348 return NULL;
349 snd_usX2Y_card_used[usX2Y(card)->chip.index = dev] = 1;
350 card->private_free = snd_usX2Y_card_private_free;
351 usX2Y(card)->chip.dev = device;
352 usX2Y(card)->chip.card = card;
353 init_waitqueue_head(&usX2Y(card)->prepare_wait_queue);
354 mutex_init(&usX2Y(card)->prepare_mutex);
355 INIT_LIST_HEAD(&usX2Y(card)->chip.midi_list);
356 strcpy(card->driver, "USB "NAME_ALLCAPS"");
357 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
358 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
359 card->shortname,
360 le16_to_cpu(device->descriptor.idVendor),
361 le16_to_cpu(device->descriptor.idProduct),
362 0,//us428(card)->usbmidi.ifnum,
363 usX2Y(card)->chip.dev->bus->busnum, usX2Y(card)->chip.dev->devnum
364 );
365 snd_card_set_dev(card, &device->dev);
366 return card;
367 }
370 static void *usX2Y_usb_probe(struct usb_device *device, struct usb_interface *intf, const struct usb_device_id *device_id)
371 {
372 int err;
373 struct snd_card * card;
374 if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 ||
375 (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 &&
376 le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 &&
377 le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428) ||
378 !(card = usX2Y_create_card(device)))
379 return NULL;
380 if ((err = usX2Y_hwdep_new(card, device)) < 0 ||
381 (err = snd_card_register(card)) < 0) {
382 snd_card_free(card);
383 return NULL;
384 }
385 return card;
386 }
388 /*
389 * new 2.5 USB kernel API
390 */
391 static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id)
392 {
393 void *chip;
394 chip = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id);
395 if (chip) {
396 dev_set_drvdata(&intf->dev, chip);
397 return 0;
398 } else
399 return -EIO;
400 }
402 static void snd_usX2Y_disconnect(struct usb_interface *intf)
403 {
404 usX2Y_usb_disconnect(interface_to_usbdev(intf),
405 dev_get_drvdata(&intf->dev));
406 }
408 MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table);
409 static struct usb_driver snd_usX2Y_usb_driver = {
410 .name = "snd-usb-usx2y",
411 .probe = snd_usX2Y_probe,
412 .disconnect = snd_usX2Y_disconnect,
413 .id_table = snd_usX2Y_usb_id_table,
414 };
416 static void snd_usX2Y_card_private_free(struct snd_card *card)
417 {
418 kfree(usX2Y(card)->In04Buf);
419 usb_free_urb(usX2Y(card)->In04urb);
420 if (usX2Y(card)->us428ctls_sharedmem)
421 snd_free_pages(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem));
422 if (usX2Y(card)->chip.index >= 0 && usX2Y(card)->chip.index < SNDRV_CARDS)
423 snd_usX2Y_card_used[usX2Y(card)->chip.index] = 0;
424 }
426 /*
427 * Frees the device.
428 */
429 static void usX2Y_usb_disconnect(struct usb_device *device, void* ptr)
430 {
431 if (ptr) {
432 struct snd_card *card = ptr;
433 struct usX2Ydev *usX2Y = usX2Y(card);
434 struct list_head *p;
435 usX2Y->chip.shutdown = 1;
436 usX2Y->chip_status = USX2Y_STAT_CHIP_HUP;
437 usX2Y_unlinkSeq(&usX2Y->AS04);
438 usb_kill_urb(usX2Y->In04urb);
439 snd_card_disconnect(card);
440 /* release the midi resources */
441 list_for_each(p, &usX2Y->chip.midi_list) {
442 snd_usbmidi_disconnect(p);
443 }
444 if (usX2Y->us428ctls_sharedmem)
445 wake_up(&usX2Y->us428ctls_wait_queue_head);
446 snd_card_free(card);
447 }
448 }
450 static int __init snd_usX2Y_module_init(void)
451 {
452 return usb_register(&snd_usX2Y_usb_driver);
453 }
455 static void __exit snd_usX2Y_module_exit(void)
456 {
457 usb_deregister(&snd_usX2Y_usb_driver);
458 }
460 module_init(snd_usX2Y_module_init)
461 module_exit(snd_usX2Y_module_exit)