?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Avoid beyond bounds copy while caching ACL
[zen-stable.git] / sound / usb / caiaq / device.c
blob64aed432ae2213dfaca6dba0818ccca8cc38352c
1 /*
2 * caiaq.c: ALSA driver for caiaq/NativeInstruments devices
3 *
4 * Copyright (c) 2007 Daniel Mack <daniel@caiaq.de>
5 * Karsten Wiese <fzu@wemgehoertderstaat.de>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 #include <linux/moduleparam.h>
23 #include <linux/interrupt.h>
24 #include <linux/module.h>
25 #include <linux/init.h>
26 #include <linux/gfp.h>
27 #include <linux/usb.h>
28 #include <sound/initval.h>
29 #include <sound/core.h>
30 #include <sound/pcm.h>
31
32 #include "device.h"
33 #include "audio.h"
34 #include "midi.h"
35 #include "control.h"
36 #include "input.h"
37
38 MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
39 MODULE_DESCRIPTION("caiaq USB audio");
40 MODULE_LICENSE("GPL");
41 MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
42 "{Native Instruments, RigKontrol3},"
43 "{Native Instruments, Kore Controller},"
44 "{Native Instruments, Kore Controller 2},"
45 "{Native Instruments, Audio Kontrol 1},"
46 "{Native Instruments, Audio 2 DJ},"
47 "{Native Instruments, Audio 4 DJ},"
48 "{Native Instruments, Audio 8 DJ},"
49 "{Native Instruments, Traktor Audio 2},"
50 "{Native Instruments, Session I/O},"
51 "{Native Instruments, GuitarRig mobile}"
52 "{Native Instruments, Traktor Kontrol X1}"
53 "{Native Instruments, Traktor Kontrol S4}"
54 "{Native Instruments, Maschine Controller}");
55
56 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
57 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
58 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
59 static int snd_card_used[SNDRV_CARDS];
60
61 module_param_array(index, int, NULL, 0444);
62 MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
63 module_param_array(id, charp, NULL, 0444);
64 MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
65 module_param_array(enable, bool, NULL, 0444);
66 MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");
67
68 enum {
69 SAMPLERATE_44100 = 0,
70 SAMPLERATE_48000 = 1,
71 SAMPLERATE_96000 = 2,
72 SAMPLERATE_192000 = 3,
73 SAMPLERATE_88200 = 4,
74 SAMPLERATE_INVALID = 0xff
75 };
76
77 enum {
78 DEPTH_NONE = 0,
79 DEPTH_16 = 1,
80 DEPTH_24 = 2,
81 DEPTH_32 = 3
82 };
83
84 static struct usb_device_id snd_usb_id_table[] = {
85 {
86 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
87 .idVendor = USB_VID_NATIVEINSTRUMENTS,
88 .idProduct = USB_PID_RIGKONTROL2
89 },
90 {
91 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
92 .idVendor = USB_VID_NATIVEINSTRUMENTS,
93 .idProduct = USB_PID_RIGKONTROL3
94 },
95 {
96 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
97 .idVendor = USB_VID_NATIVEINSTRUMENTS,
98 .idProduct = USB_PID_KORECONTROLLER
99 },
100 {
101 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
102 .idVendor = USB_VID_NATIVEINSTRUMENTS,
103 .idProduct = USB_PID_KORECONTROLLER2
104 },
105 {
106 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
107 .idVendor = USB_VID_NATIVEINSTRUMENTS,
108 .idProduct = USB_PID_AK1
109 },
110 {
111 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
112 .idVendor = USB_VID_NATIVEINSTRUMENTS,
113 .idProduct = USB_PID_AUDIO8DJ
114 },
115 {
116 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
117 .idVendor = USB_VID_NATIVEINSTRUMENTS,
118 .idProduct = USB_PID_SESSIONIO
119 },
120 {
121 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
122 .idVendor = USB_VID_NATIVEINSTRUMENTS,
123 .idProduct = USB_PID_GUITARRIGMOBILE
124 },
125 {
126 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
127 .idVendor = USB_VID_NATIVEINSTRUMENTS,
128 .idProduct = USB_PID_AUDIO4DJ
129 },
130 {
131 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
132 .idVendor = USB_VID_NATIVEINSTRUMENTS,
133 .idProduct = USB_PID_AUDIO2DJ
134 },
135 {
136 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
137 .idVendor = USB_VID_NATIVEINSTRUMENTS,
138 .idProduct = USB_PID_TRAKTORKONTROLX1
139 },
140 {
141 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
142 .idVendor = USB_VID_NATIVEINSTRUMENTS,
143 .idProduct = USB_PID_TRAKTORKONTROLS4
144 },
145 {
146 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
147 .idVendor = USB_VID_NATIVEINSTRUMENTS,
148 .idProduct = USB_PID_TRAKTORAUDIO2
149 },
150 {
151 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
152 .idVendor = USB_VID_NATIVEINSTRUMENTS,
153 .idProduct = USB_PID_MASCHINECONTROLLER
154 },
155 { /* terminator */ }
156 };
157
158 static void usb_ep1_command_reply_dispatch (struct urb* urb)
159 {
160 int ret;
161 struct snd_usb_caiaqdev *dev = urb->context;
162 unsigned char *buf = urb->transfer_buffer;
163
164 if (urb->status || !dev) {
165 log("received EP1 urb->status = %i\n", urb->status);
166 return;
167 }
168
169 switch(buf[0]) {
170 case EP1_CMD_GET_DEVICE_INFO:
171 memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
172 dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
173 debug("device spec (firmware %d): audio: %d in, %d out, "
174 "MIDI: %d in, %d out, data alignment %d\n",
175 dev->spec.fw_version,
176 dev->spec.num_analog_audio_in,
177 dev->spec.num_analog_audio_out,
178 dev->spec.num_midi_in,
179 dev->spec.num_midi_out,
180 dev->spec.data_alignment);
181
182 dev->spec_received++;
183 wake_up(&dev->ep1_wait_queue);
184 break;
185 case EP1_CMD_AUDIO_PARAMS:
186 dev->audio_parm_answer = buf[1];
187 wake_up(&dev->ep1_wait_queue);
188 break;
189 case EP1_CMD_MIDI_READ:
190 snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
191 break;
192 case EP1_CMD_READ_IO:
193 if (dev->chip.usb_id ==
194 USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) {
195 if (urb->actual_length > sizeof(dev->control_state))
196 urb->actual_length = sizeof(dev->control_state);
197 memcpy(dev->control_state, buf + 1, urb->actual_length);
198 wake_up(&dev->ep1_wait_queue);
199 break;
200 }
201 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
202 case EP1_CMD_READ_ERP:
203 case EP1_CMD_READ_ANALOG:
204 snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
205 #endif
206 break;
207 }
208
209 dev->ep1_in_urb.actual_length = 0;
210 ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
211 if (ret < 0)
212 log("unable to submit urb. OOM!?\n");
213 }
214
215 int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
216 unsigned char command,
217 const unsigned char *buffer,
218 int len)
219 {
220 int actual_len;
221 struct usb_device *usb_dev = dev->chip.dev;
222
223 if (!usb_dev)
224 return -EIO;
225
226 if (len > EP1_BUFSIZE - 1)
227 len = EP1_BUFSIZE - 1;
228
229 if (buffer && len > 0)
230 memcpy(dev->ep1_out_buf+1, buffer, len);
231
232 dev->ep1_out_buf[0] = command;
233 return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
234 dev->ep1_out_buf, len+1, &actual_len, 200);
235 }
236
237 int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
238 int rate, int depth, int bpp)
239 {
240 int ret;
241 char tmp[5];
242
243 switch (rate) {
244 case 44100: tmp[0] = SAMPLERATE_44100; break;
245 case 48000: tmp[0] = SAMPLERATE_48000; break;
246 case 88200: tmp[0] = SAMPLERATE_88200; break;
247 case 96000: tmp[0] = SAMPLERATE_96000; break;
248 case 192000: tmp[0] = SAMPLERATE_192000; break;
249 default: return -EINVAL;
250 }
251
252 switch (depth) {
253 case 16: tmp[1] = DEPTH_16; break;
254 case 24: tmp[1] = DEPTH_24; break;
255 default: return -EINVAL;
256 }
257
258 tmp[2] = bpp & 0xff;
259 tmp[3] = bpp >> 8;
260 tmp[4] = 1; /* packets per microframe */
261
262 debug("setting audio params: %d Hz, %d bits, %d bpp\n",
263 rate, depth, bpp);
264
265 dev->audio_parm_answer = -1;
266 ret = snd_usb_caiaq_send_command(dev, EP1_CMD_AUDIO_PARAMS,
267 tmp, sizeof(tmp));
268
269 if (ret)
270 return ret;
271
272 if (!wait_event_timeout(dev->ep1_wait_queue,
273 dev->audio_parm_answer >= 0, HZ))
274 return -EPIPE;
275
276 if (dev->audio_parm_answer != 1)
277 debug("unable to set the device's audio params\n");
278 else
279 dev->bpp = bpp;
280
281 return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
282 }
283
284 int snd_usb_caiaq_set_auto_msg(struct snd_usb_caiaqdev *dev,
285 int digital, int analog, int erp)
286 {
287 char tmp[3] = { digital, analog, erp };
288 return snd_usb_caiaq_send_command(dev, EP1_CMD_AUTO_MSG,
289 tmp, sizeof(tmp));
290 }
291
292 static void __devinit setup_card(struct snd_usb_caiaqdev *dev)
293 {
294 int ret;
295 char val[4];
296
297 /* device-specific startup specials */
298 switch (dev->chip.usb_id) {
299 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
300 /* RigKontrol2 - display centered dash ('-') */
301 val[0] = 0x00;
302 val[1] = 0x00;
303 val[2] = 0x01;
304 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 3);
305 break;
306 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
307 /* RigKontrol2 - display two centered dashes ('--') */
308 val[0] = 0x00;
309 val[1] = 0x40;
310 val[2] = 0x40;
311 val[3] = 0x00;
312 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 4);
313 break;
314 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
315 /* Audio Kontrol 1 - make USB-LED stop blinking */
316 val[0] = 0x00;
317 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 1);
318 break;
319 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
320 /* Audio 8 DJ - trigger read of current settings */
321 dev->control_state[0] = 0xff;
322 snd_usb_caiaq_set_auto_msg(dev, 1, 0, 0);
323 snd_usb_caiaq_send_command(dev, EP1_CMD_READ_IO, NULL, 0);
324
325 if (!wait_event_timeout(dev->ep1_wait_queue,
326 dev->control_state[0] != 0xff, HZ))
327 return;
328
329 /* fix up some defaults */
330 if ((dev->control_state[1] != 2) ||
331 (dev->control_state[2] != 3) ||
332 (dev->control_state[4] != 2)) {
333 dev->control_state[1] = 2;
334 dev->control_state[2] = 3;
335 dev->control_state[4] = 2;
336 snd_usb_caiaq_send_command(dev,
337 EP1_CMD_WRITE_IO, dev->control_state, 6);
338 }
339
340 break;
341 }
342
343 if (dev->spec.num_analog_audio_out +
344 dev->spec.num_analog_audio_in +
345 dev->spec.num_digital_audio_out +
346 dev->spec.num_digital_audio_in > 0) {
347 ret = snd_usb_caiaq_audio_init(dev);
348 if (ret < 0)
349 log("Unable to set up audio system (ret=%d)\n", ret);
350 }
351
352 if (dev->spec.num_midi_in +
353 dev->spec.num_midi_out > 0) {
354 ret = snd_usb_caiaq_midi_init(dev);
355 if (ret < 0)
356 log("Unable to set up MIDI system (ret=%d)\n", ret);
357 }
358
359 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
360 ret = snd_usb_caiaq_input_init(dev);
361 if (ret < 0)
362 log("Unable to set up input system (ret=%d)\n", ret);
363 #endif
364
365 /* finally, register the card and all its sub-instances */
366 ret = snd_card_register(dev->chip.card);
367 if (ret < 0) {
368 log("snd_card_register() returned %d\n", ret);
369 snd_card_free(dev->chip.card);
370 }
371
372 ret = snd_usb_caiaq_control_init(dev);
373 if (ret < 0)
374 log("Unable to set up control system (ret=%d)\n", ret);
375 }
376
377 static int create_card(struct usb_device *usb_dev,
378 struct usb_interface *intf,
379 struct snd_card **cardp)
380 {
381 int devnum;
382 int err;
383 struct snd_card *card;
384 struct snd_usb_caiaqdev *dev;
385
386 for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
387 if (enable[devnum] && !snd_card_used[devnum])
388 break;
389
390 if (devnum >= SNDRV_CARDS)
391 return -ENODEV;
392
393 err = snd_card_create(index[devnum], id[devnum], THIS_MODULE,
394 sizeof(struct snd_usb_caiaqdev), &card);
395 if (err < 0)
396 return err;
397
398 dev = caiaqdev(card);
399 dev->chip.dev = usb_dev;
400 dev->chip.card = card;
401 dev->chip.usb_id = USB_ID(le16_to_cpu(usb_dev->descriptor.idVendor),
402 le16_to_cpu(usb_dev->descriptor.idProduct));
403 spin_lock_init(&dev->spinlock);
404 snd_card_set_dev(card, &intf->dev);
405
406 *cardp = card;
407 return 0;
408 }
409
410 static int __devinit init_card(struct snd_usb_caiaqdev *dev)
411 {
412 char *c, usbpath[32];
413 struct usb_device *usb_dev = dev->chip.dev;
414 struct snd_card *card = dev->chip.card;
415 int err, len;
416
417 if (usb_set_interface(usb_dev, 0, 1) != 0) {
418 log("can't set alt interface.\n");
419 return -EIO;
420 }
421
422 usb_init_urb(&dev->ep1_in_urb);
423 usb_init_urb(&dev->midi_out_urb);
424
425 usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev,
426 usb_rcvbulkpipe(usb_dev, 0x1),
427 dev->ep1_in_buf, EP1_BUFSIZE,
428 usb_ep1_command_reply_dispatch, dev);
429
430 usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev,
431 usb_sndbulkpipe(usb_dev, 0x1),
432 dev->midi_out_buf, EP1_BUFSIZE,
433 snd_usb_caiaq_midi_output_done, dev);
434
435 init_waitqueue_head(&dev->ep1_wait_queue);
436 init_waitqueue_head(&dev->prepare_wait_queue);
437
438 if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
439 return -EIO;
440
441 err = snd_usb_caiaq_send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
442 if (err)
443 return err;
444
445 if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
446 return -ENODEV;
447
448 usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
449 dev->vendor_name, CAIAQ_USB_STR_LEN);
450
451 usb_string(usb_dev, usb_dev->descriptor.iProduct,
452 dev->product_name, CAIAQ_USB_STR_LEN);
453
454 strlcpy(card->driver, MODNAME, sizeof(card->driver));
455 strlcpy(card->shortname, dev->product_name, sizeof(card->shortname));
456 strlcpy(card->mixername, dev->product_name, sizeof(card->mixername));
457
458 /* if the id was not passed as module option, fill it with a shortened
459 * version of the product string which does not contain any
460 * whitespaces */
461
462 if (*card->id == '\0') {
463 char id[sizeof(card->id)];
464
465 memset(id, 0, sizeof(id));
466
467 for (c = card->shortname, len = 0;
468 *c && len < sizeof(card->id); c++)
469 if (*c != ' ')
470 id[len++] = *c;
471
472 snd_card_set_id(card, id);
473 }
474
475 usb_make_path(usb_dev, usbpath, sizeof(usbpath));
476 snprintf(card->longname, sizeof(card->longname),
477 "%s %s (%s)",
478 dev->vendor_name, dev->product_name, usbpath);
479
480 setup_card(dev);
481 return 0;
482 }
483
484 static int __devinit snd_probe(struct usb_interface *intf,
485 const struct usb_device_id *id)
486 {
487 int ret;
488 struct snd_card *card;
489 struct usb_device *device = interface_to_usbdev(intf);
490
491 ret = create_card(device, intf, &card);
492
493 if (ret < 0)
494 return ret;
495
496 usb_set_intfdata(intf, card);
497 ret = init_card(caiaqdev(card));
498 if (ret < 0) {
499 log("unable to init card! (ret=%d)\n", ret);
500 snd_card_free(card);
501 return ret;
502 }
503
504 return 0;
505 }
506
507 static void snd_disconnect(struct usb_interface *intf)
508 {
509 struct snd_usb_caiaqdev *dev;
510 struct snd_card *card = usb_get_intfdata(intf);
511
512 debug("%s(%p)\n", __func__, intf);
513
514 if (!card)
515 return;
516
517 dev = caiaqdev(card);
518 snd_card_disconnect(card);
519
520 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
521 snd_usb_caiaq_input_free(dev);
522 #endif
523 snd_usb_caiaq_audio_free(dev);
524
525 usb_kill_urb(&dev->ep1_in_urb);
526 usb_kill_urb(&dev->midi_out_urb);
527
528 snd_card_free(card);
529 usb_reset_device(interface_to_usbdev(intf));
530 }
531
532
533 MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
534 static struct usb_driver snd_usb_driver = {
535 .name = MODNAME,
536 .probe = snd_probe,
537 .disconnect = snd_disconnect,
538 .id_table = snd_usb_id_table,
539 };
540
541 module_usb_driver(snd_usb_driver);
542