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/init.h>
23 #include <linux/module.h>
24 #include <linux/moduleparam.h>
25 #include <linux/interrupt.h>
26 #include <linux/usb.h>
27 #include <linux/input.h>
28 #include <linux/spinlock.h>
29 #include <sound/core.h>
30 #include <sound/initval.h>
31 #include <sound/pcm.h>
32 #include <sound/rawmidi.h>
33 #include <sound/control.h>
34
35 #include "caiaq-device.h"
36 #include "caiaq-audio.h"
37 #include "caiaq-midi.h"
38 #include "caiaq-control.h"
39
40 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
41 #include "caiaq-input.h"
42 #endif
43
44 MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
45 MODULE_DESCRIPTION("caiaq USB audio, version 1.3.2");
46 MODULE_LICENSE("GPL");
47 MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
48 "{Native Instruments, RigKontrol3},"
49 "{Native Instruments, Kore Controller},"
50 "{Native Instruments, Kore Controller 2},"
51 "{Native Instruments, Audio Kontrol 1}"
52 "{Native Instruments, Audio 8 DJ}}");
53
54 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
55 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
56 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
57 static int snd_card_used[SNDRV_CARDS];
58
59 module_param_array(index, int, NULL, 0444);
60 MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
61 module_param_array(id, charp, NULL, 0444);
62 MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
63 module_param_array(enable, bool, NULL, 0444);
64 MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");
65
66 enum {
67 SAMPLERATE_44100 = 0,
68 SAMPLERATE_48000 = 1,
69 SAMPLERATE_96000 = 2,
70 SAMPLERATE_192000 = 3,
71 SAMPLERATE_88200 = 4,
72 SAMPLERATE_INVALID = 0xff
73 };
74
75 enum {
76 DEPTH_NONE = 0,
77 DEPTH_16 = 1,
78 DEPTH_24 = 2,
79 DEPTH_32 = 3
80 };
81
82 static struct usb_device_id snd_usb_id_table[] = {
83 {
84 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
85 .idVendor = USB_VID_NATIVEINSTRUMENTS,
86 .idProduct = USB_PID_RIGKONTROL2
87 },
88 {
89 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
90 .idVendor = USB_VID_NATIVEINSTRUMENTS,
91 .idProduct = USB_PID_RIGKONTROL3
92 },
93 {
94 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
95 .idVendor = USB_VID_NATIVEINSTRUMENTS,
96 .idProduct = USB_PID_KORECONTROLLER
97 },
98 {
99 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
100 .idVendor = USB_VID_NATIVEINSTRUMENTS,
101 .idProduct = USB_PID_KORECONTROLLER2
102 },
103 {
104 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
105 .idVendor = USB_VID_NATIVEINSTRUMENTS,
106 .idProduct = USB_PID_AK1
107 },
108 {
109 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
110 .idVendor = USB_VID_NATIVEINSTRUMENTS,
111 .idProduct = USB_PID_AUDIO8DJ
112 },
113 { /* terminator */ }
114 };
115
116 static void usb_ep1_command_reply_dispatch (struct urb* urb)
117 {
118 int ret;
119 struct snd_usb_caiaqdev *dev = urb->context;
120 unsigned char *buf = urb->transfer_buffer;
121
122 if (urb->status || !dev) {
123 log("received EP1 urb->status = %i\n", urb->status);
124 return;
125 }
126
127 switch(buf[0]) {
128 case EP1_CMD_GET_DEVICE_INFO:
129 memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
130 dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
131 debug("device spec (firmware %d): audio: %d in, %d out, "
132 "MIDI: %d in, %d out, data alignment %d\n",
133 dev->spec.fw_version,
134 dev->spec.num_analog_audio_in,
135 dev->spec.num_analog_audio_out,
136 dev->spec.num_midi_in,
137 dev->spec.num_midi_out,
138 dev->spec.data_alignment);
139
140 dev->spec_received++;
141 wake_up(&dev->ep1_wait_queue);
142 break;
143 case EP1_CMD_AUDIO_PARAMS:
144 dev->audio_parm_answer = buf[1];
145 wake_up(&dev->ep1_wait_queue);
146 break;
147 case EP1_CMD_MIDI_READ:
148 snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
149 break;
150 case EP1_CMD_READ_IO:
151 if (dev->chip.usb_id ==
152 USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) {
153 if (urb->actual_length > sizeof(dev->control_state))
154 urb->actual_length = sizeof(dev->control_state);
155 memcpy(dev->control_state, buf + 1, urb->actual_length);
156 wake_up(&dev->ep1_wait_queue);
157 break;
158 }
159 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
160 case EP1_CMD_READ_ERP:
161 case EP1_CMD_READ_ANALOG:
162 snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
163 #endif
164 break;
165 }
166
167 dev->ep1_in_urb.actual_length = 0;
168 ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
169 if (ret < 0)
170 log("unable to submit urb. OOM!?\n");
171 }
172
173 int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
174 unsigned char command,
175 const unsigned char *buffer,
176 int len)
177 {
178 int actual_len;
179 struct usb_device *usb_dev = dev->chip.dev;
180
181 if (!usb_dev)
182 return -EIO;
183
184 if (len > EP1_BUFSIZE - 1)
185 len = EP1_BUFSIZE - 1;
186
187 if (buffer && len > 0)
188 memcpy(dev->ep1_out_buf+1, buffer, len);
189
190 dev->ep1_out_buf[0] = command;
191 return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
192 dev->ep1_out_buf, len+1, &actual_len, 200);
193 }
194
195 int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
196 int rate, int depth, int bpp)
197 {
198 int ret;
199 char tmp[5];
200
201 switch (rate) {
202 case 44100: tmp[0] = SAMPLERATE_44100; break;
203 case 48000: tmp[0] = SAMPLERATE_48000; break;
204 case 88200: tmp[0] = SAMPLERATE_88200; break;
205 case 96000: tmp[0] = SAMPLERATE_96000; break;
206 case 192000: tmp[0] = SAMPLERATE_192000; break;
207 default: return -EINVAL;
208 }
209
210 switch (depth) {
211 case 16: tmp[1] = DEPTH_16; break;
212 case 24: tmp[1] = DEPTH_24; break;
213 default: return -EINVAL;
214 }
215
216 tmp[2] = bpp & 0xff;
217 tmp[3] = bpp >> 8;
218 tmp[4] = 1; /* packets per microframe */
219
220 debug("setting audio params: %d Hz, %d bits, %d bpp\n",
221 rate, depth, bpp);
222
223 dev->audio_parm_answer = -1;
224 ret = snd_usb_caiaq_send_command(dev, EP1_CMD_AUDIO_PARAMS,
225 tmp, sizeof(tmp));
226
227 if (ret)
228 return ret;
229
230 if (!wait_event_timeout(dev->ep1_wait_queue,
231 dev->audio_parm_answer >= 0, HZ))
232 return -EPIPE;
233
234 if (dev->audio_parm_answer != 1)
235 debug("unable to set the device's audio params\n");
236
237 return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
238 }
239
240 int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev,
241 int digital, int analog, int erp)
242 {
243 char tmp[3] = { digital, analog, erp };
244 return snd_usb_caiaq_send_command(dev, EP1_CMD_AUTO_MSG,
245 tmp, sizeof(tmp));
246 }
247
248 static void __devinit setup_card(struct snd_usb_caiaqdev *dev)
249 {
250 int ret;
251 char val[4];
252
253 /* device-specific startup specials */
254 switch (dev->chip.usb_id) {
255 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
256 /* RigKontrol2 - display centered dash ('-') */
257 val[0] = 0x00;
258 val[1] = 0x00;
259 val[2] = 0x01;
260 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 3);
261 break;
262 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
263 /* RigKontrol2 - display two centered dashes ('--') */
264 val[0] = 0x00;
265 val[1] = 0x40;
266 val[2] = 0x40;
267 val[3] = 0x00;
268 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 4);
269 break;
270 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
271 /* Audio Kontrol 1 - make USB-LED stop blinking */
272 val[0] = 0x00;
273 snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 1);
274 break;
275 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
276 /* Audio 8 DJ - trigger read of current settings */
277 dev->control_state[0] = 0xff;
278 snd_usb_caiaq_set_auto_msg(dev, 1, 0, 0);
279 snd_usb_caiaq_send_command(dev, EP1_CMD_READ_IO, NULL, 0);
280
281 if (!wait_event_timeout(dev->ep1_wait_queue,
282 dev->control_state[0] != 0xff, HZ))
283 return;
284
285 /* fix up some defaults */
286 if ((dev->control_state[1] != 2) ||
287 (dev->control_state[2] != 3) ||
288 (dev->control_state[4] != 2)) {
289 dev->control_state[1] = 2;
290 dev->control_state[2] = 3;
291 dev->control_state[4] = 2;
292 snd_usb_caiaq_send_command(dev,
293 EP1_CMD_WRITE_IO, dev->control_state, 6);
294 }
295
296 break;
297 }
298
299 if (dev->spec.num_analog_audio_out +
300 dev->spec.num_analog_audio_in +
301 dev->spec.num_digital_audio_out +
302 dev->spec.num_digital_audio_in > 0) {
303 ret = snd_usb_caiaq_audio_init(dev);
304 if (ret < 0)
305 log("Unable to set up audio system (ret=%d)\n", ret);
306 }
307
308 if (dev->spec.num_midi_in +
309 dev->spec.num_midi_out > 0) {
310 ret = snd_usb_caiaq_midi_init(dev);
311 if (ret < 0)
312 log("Unable to set up MIDI system (ret=%d)\n", ret);
313 }
314
315 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
316 ret = snd_usb_caiaq_input_init(dev);
317 if (ret < 0)
318 log("Unable to set up input system (ret=%d)\n", ret);
319 #endif
320
321 /* finally, register the card and all its sub-instances */
322 ret = snd_card_register(dev->chip.card);
323 if (ret < 0) {
324 log("snd_card_register() returned %d\n", ret);
325 snd_card_free(dev->chip.card);
326 }
327
328 ret = snd_usb_caiaq_control_init(dev);
329 if (ret < 0)
330 log("Unable to set up control system (ret=%d)\n", ret);
331 }
332
333 static struct snd_card* create_card(struct usb_device* usb_dev)
334 {
335 int devnum;
336 struct snd_card *card;
337 struct snd_usb_caiaqdev *dev;
338
339 for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
340 if (enable[devnum] && !snd_card_used[devnum])
341 break;
342
343 if (devnum >= SNDRV_CARDS)
344 return NULL;
345
346 card = snd_card_new(index[devnum], id[devnum], THIS_MODULE,
347 sizeof(struct snd_usb_caiaqdev));
348 if (!card)
349 return NULL;
350
351 dev = caiaqdev(card);
352 dev->chip.dev = usb_dev;
353 dev->chip.card = card;
354 dev->chip.usb_id = USB_ID(usb_dev->descriptor.idVendor,
355 usb_dev->descriptor.idProduct);
356 spin_lock_init(&dev->spinlock);
357 snd_card_set_dev(card, &usb_dev->dev);
358
359 return card;
360 }
361
362 static int __devinit init_card(struct snd_usb_caiaqdev *dev)
363 {
364 char *c;
365 struct usb_device *usb_dev = dev->chip.dev;
366 struct snd_card *card = dev->chip.card;
367 int err, len;
368
369 if (usb_set_interface(usb_dev, 0, 1) != 0) {
370 log("can't set alt interface.\n");
371 return -EIO;
372 }
373
374 usb_init_urb(&dev->ep1_in_urb);
375 usb_init_urb(&dev->midi_out_urb);
376
377 usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev,
378 usb_rcvbulkpipe(usb_dev, 0x1),
379 dev->ep1_in_buf, EP1_BUFSIZE,
380 usb_ep1_command_reply_dispatch, dev);
381
382 usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev,
383 usb_sndbulkpipe(usb_dev, 0x1),
384 dev->midi_out_buf, EP1_BUFSIZE,
385 snd_usb_caiaq_midi_output_done, dev);
386
387 init_waitqueue_head(&dev->ep1_wait_queue);
388 init_waitqueue_head(&dev->prepare_wait_queue);
389
390 if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
391 return -EIO;
392
393 err = snd_usb_caiaq_send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
394 if (err)
395 return err;
396
397 if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
398 return -ENODEV;
399
400 usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
401 dev->vendor_name, CAIAQ_USB_STR_LEN);
402
403 usb_string(usb_dev, usb_dev->descriptor.iProduct,
404 dev->product_name, CAIAQ_USB_STR_LEN);
405
406 usb_string(usb_dev, usb_dev->descriptor.iSerialNumber,
407 dev->serial, CAIAQ_USB_STR_LEN);
408
409 /* terminate serial string at first white space occurence */
410 c = strchr(dev->serial, ' ');
411 if (c)
412 *c = '\0';
413
414 strcpy(card->driver, MODNAME);
415 strcpy(card->shortname, dev->product_name);
416
417 len = snprintf(card->longname, sizeof(card->longname),
418 "%s %s (serial %s, ",
419 dev->vendor_name, dev->product_name, dev->serial);
420
421 if (len < sizeof(card->longname) - 2)
422 len += usb_make_path(usb_dev, card->longname + len,
423 sizeof(card->longname) - len);
424
425 card->longname[len++] = ')';
426 card->longname[len] = '\0';
427 setup_card(dev);
428 return 0;
429 }
430
431 static int __devinit snd_probe(struct usb_interface *intf,
432 const struct usb_device_id *id)
433 {
434 int ret;
435 struct snd_card *card;
436 struct usb_device *device = interface_to_usbdev(intf);
437
438 card = create_card(device);
439
440 if (!card)
441 return -ENOMEM;
442
443 dev_set_drvdata(&intf->dev, card);
444 ret = init_card(caiaqdev(card));
445 if (ret < 0) {
446 log("unable to init card! (ret=%d)\n", ret);
447 snd_card_free(card);
448 return ret;
449 }
450
451 return 0;
452 }
453
454 static void snd_disconnect(struct usb_interface *intf)
455 {
456 struct snd_usb_caiaqdev *dev;
457 struct snd_card *card = dev_get_drvdata(&intf->dev);
458
459 debug("snd_disconnect(%p)\n", intf);
460
461 if (!card)
462 return;
463
464 dev = caiaqdev(card);
465 snd_card_disconnect(card);
466
467 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
468 snd_usb_caiaq_input_free(dev);
469 #endif
470 snd_usb_caiaq_audio_free(dev);
471
472 usb_kill_urb(&dev->ep1_in_urb);
473 usb_kill_urb(&dev->midi_out_urb);
474
475 snd_card_free(card);
476 usb_reset_device(interface_to_usbdev(intf));
477 }
478
479
480 MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
481 static struct usb_driver snd_usb_driver = {
482 .name = MODNAME,
483 .probe = snd_probe,
484 .disconnect = snd_disconnect,
485 .id_table = snd_usb_id_table,
486 };
487
488 static int __init snd_module_init(void)
489 {
490 return usb_register(&snd_usb_driver);
491 }
492
493 static void __exit snd_module_exit(void)
494 {
495 usb_deregister(&snd_usb_driver);
496 }
497
498 module_init(snd_module_init)
499 module_exit(snd_module_exit)
500
501
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