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authorDaniel Mack <daniel@caiaq.org>2007-03-26 13:11:24 -0400
committerJaroslav Kysela <perex@suse.cz>2007-05-11 10:55:53 -0400
commit523f1dce37434a9a6623bf46e7893e2b4b10ac3c (patch)
tree6f429b936089a79864c4b29d72011583f0f998e2 /sound/usb/caiaq
parente24a121aa1070fc91b6461b8b88bb6ffa61b4b49 (diff)
[ALSA] Add Native Instrument usb audio device support
Add snd-usb-caiaq driver to support caiaq usb-audio devices from Native Instrument: * Native Instruments RigKontrol2 * Native Instruments Kore Controller * Native Instruments Audio Kontrol 1 * Native Instruments Audio 8 DJ Signed-off-by: Daniel Mack <daniel@caiaq.org> Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/usb/caiaq')
-rw-r--r--sound/usb/caiaq/Makefile3
-rw-r--r--sound/usb/caiaq/caiaq-audio.c706
-rw-r--r--sound/usb/caiaq/caiaq-audio.h7
-rw-r--r--sound/usb/caiaq/caiaq-device.c436
-rw-r--r--sound/usb/caiaq/caiaq-device.h116
-rw-r--r--sound/usb/caiaq/caiaq-input.c246
-rw-r--r--sound/usb/caiaq/caiaq-input.h8
-rw-r--r--sound/usb/caiaq/caiaq-midi.c177
-rw-r--r--sound/usb/caiaq/caiaq-midi.h8
9 files changed, 1707 insertions, 0 deletions
diff --git a/sound/usb/caiaq/Makefile b/sound/usb/caiaq/Makefile
new file mode 100644
index 000000000000..455c8c58a1bd
--- /dev/null
+++ b/sound/usb/caiaq/Makefile
@@ -0,0 +1,3 @@
1snd-usb-caiaq-objs := caiaq-device.o caiaq-audio.o caiaq-midi.o caiaq-input.o
2
3obj-$(CONFIG_SND_USB_CAIAQ) += snd-usb-caiaq.o
diff --git a/sound/usb/caiaq/caiaq-audio.c b/sound/usb/caiaq/caiaq-audio.c
new file mode 100644
index 000000000000..e80c8db237d3
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-audio.c
@@ -0,0 +1,706 @@
1/*
2 * Copyright (c) 2006,2007 Daniel Mack, Karsten Wiese
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17*/
18
19#include <sound/driver.h>
20#include <linux/init.h>
21#include <linux/module.h>
22#include <linux/moduleparam.h>
23#include <linux/interrupt.h>
24#include <linux/usb.h>
25#include <linux/spinlock.h>
26#include <sound/core.h>
27#include <sound/initval.h>
28#include <sound/pcm.h>
29#include <sound/rawmidi.h>
30#ifdef CONFIG_SND_USB_CAIAQ_INPUT
31#include <linux/input.h>
32#endif
33
34#include "caiaq-device.h"
35#include "caiaq-audio.h"
36
37#define N_URBS 32
38#define CLOCK_DRIFT_TOLERANCE 5
39#define FRAMES_PER_URB 8
40#define BYTES_PER_FRAME 512
41#define CHANNELS_PER_STREAM 2
42#define BYTES_PER_SAMPLE 3
43#define BYTES_PER_SAMPLE_USB 4
44#define MAX_BUFFER_SIZE (128*1024)
45
46#define ENDPOINT_CAPTURE 2
47#define ENDPOINT_PLAYBACK 6
48
49#define MAKE_CHECKBYTE(dev,stream,i) \
50 (stream << 1) | (~(i / (dev->n_streams * BYTES_PER_SAMPLE_USB)) & 1)
51
52static struct snd_pcm_hardware snd_usb_caiaq_pcm_hardware = {
53 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
54 SNDRV_PCM_INFO_BLOCK_TRANSFER),
55 .formats = SNDRV_PCM_FMTBIT_S24_3BE,
56 .rates = (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
57 SNDRV_PCM_RATE_96000),
58 .rate_min = 44100,
59 .rate_max = 0, /* will overwrite later */
60 .channels_min = CHANNELS_PER_STREAM,
61 .channels_max = CHANNELS_PER_STREAM,
62 .buffer_bytes_max = MAX_BUFFER_SIZE,
63 .period_bytes_min = 4096,
64 .period_bytes_max = MAX_BUFFER_SIZE,
65 .periods_min = 1,
66 .periods_max = 1024,
67};
68
69static void
70activate_substream(struct snd_usb_caiaqdev *dev,
71 struct snd_pcm_substream *sub)
72{
73 if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
74 dev->sub_playback[sub->number] = sub;
75 else
76 dev->sub_capture[sub->number] = sub;
77}
78
79static void
80deactivate_substream(struct snd_usb_caiaqdev *dev,
81 struct snd_pcm_substream *sub)
82{
83 if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
84 dev->sub_playback[sub->number] = NULL;
85 else
86 dev->sub_capture[sub->number] = NULL;
87}
88
89static int
90all_substreams_zero(struct snd_pcm_substream **subs)
91{
92 int i;
93 for (i = 0; i < MAX_STREAMS; i++)
94 if (subs[i] != NULL)
95 return 0;
96 return 1;
97}
98
99static int stream_start(struct snd_usb_caiaqdev *dev)
100{
101 int i, ret;
102
103 debug("stream_start(%p)\n", dev);
104 spin_lock_irq(&dev->spinlock);
105 if (dev->streaming) {
106 spin_unlock_irq(&dev->spinlock);
107 return -EINVAL;
108 }
109
110 dev->input_panic = 0;
111 dev->output_panic = 0;
112 dev->first_packet = 1;
113 dev->streaming = 1;
114
115 for (i = 0; i < N_URBS; i++) {
116 ret = usb_submit_urb(dev->data_urbs_in[i], GFP_ATOMIC);
117 if (ret) {
118 log("unable to trigger initial read #%d! (ret = %d)\n",
119 i, ret);
120 dev->streaming = 0;
121 spin_unlock_irq(&dev->spinlock);
122 return -EPIPE;
123 }
124 }
125
126 spin_unlock_irq(&dev->spinlock);
127 return 0;
128}
129
130static void stream_stop(struct snd_usb_caiaqdev *dev)
131{
132 int i;
133
134 debug("stream_stop(%p)\n", dev);
135 if (!dev->streaming)
136 return;
137
138 dev->streaming = 0;
139 for (i = 0; i < N_URBS; i++) {
140 usb_unlink_urb(dev->data_urbs_in[i]);
141 usb_unlink_urb(dev->data_urbs_out[i]);
142 }
143}
144
145static int snd_usb_caiaq_substream_open(struct snd_pcm_substream *substream)
146{
147 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream);
148 debug("snd_usb_caiaq_substream_open(%p)\n", substream);
149 substream->runtime->hw = dev->pcm_info;
150 snd_pcm_limit_hw_rates(substream->runtime);
151 return 0;
152}
153
154static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream)
155{
156 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream);
157
158 debug("snd_usb_caiaq_substream_close(%p)\n", substream);
159 if (all_substreams_zero(dev->sub_playback) &&
160 all_substreams_zero(dev->sub_capture)) {
161 /* when the last client has stopped streaming,
162 * all sample rates are allowed again */
163 stream_stop(dev);
164 dev->pcm_info.rates = dev->samplerates;
165 }
166
167 return 0;
168}
169
170static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub,
171 struct snd_pcm_hw_params *hw_params)
172{
173 debug("snd_usb_caiaq_pcm_hw_params(%p)\n", sub);
174 return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params));
175}
176
177static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub)
178{
179 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub);
180 debug("snd_usb_caiaq_pcm_hw_free(%p)\n", sub);
181 spin_lock_irq(&dev->spinlock);
182 deactivate_substream(dev, sub);
183 spin_unlock_irq(&dev->spinlock);
184 return snd_pcm_lib_free_pages(sub);
185}
186
187/* this should probably go upstream */
188#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12
189#error "Change this table"
190#endif
191
192static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100,
193 48000, 64000, 88200, 96000, 176400, 192000 };
194
195static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream)
196{
197 int bytes_per_sample, bpp, ret, i;
198 int index = substream->number;
199 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream);
200 struct snd_pcm_runtime *runtime = substream->runtime;
201
202 debug("snd_usb_caiaq_pcm_prepare(%p)\n", substream);
203
204 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
205 dev->audio_out_buf_pos[index] = BYTES_PER_SAMPLE + 1;
206 else
207 dev->audio_in_buf_pos[index] = 0;
208
209 if (dev->streaming)
210 return 0;
211
212 /* the first client that opens a stream defines the sample rate
213 * setting for all subsequent calls, until the last client closed. */
214 for (i=0; i < ARRAY_SIZE(rates); i++)
215 if (runtime->rate == rates[i])
216 dev->pcm_info.rates = 1 << i;
217
218 snd_pcm_limit_hw_rates(runtime);
219
220 bytes_per_sample = BYTES_PER_SAMPLE;
221 if (dev->spec.data_alignment == 2)
222 bytes_per_sample++;
223
224 bpp = ((runtime->rate / 8000) + CLOCK_DRIFT_TOLERANCE)
225 * bytes_per_sample * CHANNELS_PER_STREAM * dev->n_streams;
226
227 ret = snd_usb_caiaq_set_audio_params(dev, runtime->rate,
228 runtime->sample_bits, bpp);
229 if (ret)
230 return ret;
231
232 ret = stream_start(dev);
233 if (ret)
234 return ret;
235
236 dev->output_running = 0;
237 wait_event_timeout(dev->prepare_wait_queue, dev->output_running, HZ);
238 if (!dev->output_running) {
239 stream_stop(dev);
240 return -EPIPE;
241 }
242
243 return 0;
244}
245
246static int snd_usb_caiaq_pcm_trigger(struct snd_pcm_substream *sub, int cmd)
247{
248 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub);
249
250 switch (cmd) {
251 case SNDRV_PCM_TRIGGER_START:
252 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
253 spin_lock(&dev->spinlock);
254 activate_substream(dev, sub);
255 spin_unlock(&dev->spinlock);
256 break;
257 case SNDRV_PCM_TRIGGER_STOP:
258 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
259 spin_lock(&dev->spinlock);
260 deactivate_substream(dev, sub);
261 spin_unlock(&dev->spinlock);
262 break;
263 default:
264 return -EINVAL;
265 }
266
267 return 0;
268}
269
270static snd_pcm_uframes_t
271snd_usb_caiaq_pcm_pointer(struct snd_pcm_substream *sub)
272{
273 int index = sub->number;
274 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub);
275
276 if (dev->input_panic || dev->output_panic)
277 return SNDRV_PCM_POS_XRUN;
278
279 if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
280 return bytes_to_frames(sub->runtime,
281 dev->audio_out_buf_pos[index]);
282 else
283 return bytes_to_frames(sub->runtime,
284 dev->audio_in_buf_pos[index]);
285}
286
287/* operators for both playback and capture */
288static struct snd_pcm_ops snd_usb_caiaq_ops = {
289 .open = snd_usb_caiaq_substream_open,
290 .close = snd_usb_caiaq_substream_close,
291 .ioctl = snd_pcm_lib_ioctl,
292 .hw_params = snd_usb_caiaq_pcm_hw_params,
293 .hw_free = snd_usb_caiaq_pcm_hw_free,
294 .prepare = snd_usb_caiaq_pcm_prepare,
295 .trigger = snd_usb_caiaq_pcm_trigger,
296 .pointer = snd_usb_caiaq_pcm_pointer
297};
298
299static void check_for_elapsed_periods(struct snd_usb_caiaqdev *dev,
300 struct snd_pcm_substream **subs)
301{
302 int stream, pb, *cnt;
303 struct snd_pcm_substream *sub;
304
305 for (stream = 0; stream < dev->n_streams; stream++) {
306 sub = subs[stream];
307 if (!sub)
308 continue;
309
310 pb = frames_to_bytes(sub->runtime,
311 sub->runtime->period_size);
312 cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
313 &dev->period_out_count[stream] :
314 &dev->period_in_count[stream];
315
316 if (*cnt >= pb) {
317 snd_pcm_period_elapsed(sub);
318 *cnt %= pb;
319 }
320 }
321}
322
323static void read_in_urb_mode0(struct snd_usb_caiaqdev *dev,
324 const struct urb *urb,
325 const struct usb_iso_packet_descriptor *iso)
326{
327 unsigned char *usb_buf = urb->transfer_buffer + iso->offset;
328 struct snd_pcm_substream *sub;
329 int stream, i;
330
331 if (all_substreams_zero(dev->sub_capture))
332 return;
333
334 spin_lock(&dev->spinlock);
335
336 for (i = 0; i < iso->actual_length;) {
337 for (stream = 0; stream < dev->n_streams; stream++, i++) {
338 sub = dev->sub_capture[stream];
339 if (sub) {
340 struct snd_pcm_runtime *rt = sub->runtime;
341 char *audio_buf = rt->dma_area;
342 int sz = frames_to_bytes(rt, rt->buffer_size);
343 audio_buf[dev->audio_in_buf_pos[stream]++]
344 = usb_buf[i];
345 dev->period_in_count[stream]++;
346 if (dev->audio_in_buf_pos[stream] == sz)
347 dev->audio_in_buf_pos[stream] = 0;
348 }
349 }
350 }
351
352 spin_unlock(&dev->spinlock);
353}
354
355static void read_in_urb_mode2(struct snd_usb_caiaqdev *dev,
356 const struct urb *urb,
357 const struct usb_iso_packet_descriptor *iso)
358{
359 unsigned char *usb_buf = urb->transfer_buffer + iso->offset;
360 unsigned char check_byte;
361 struct snd_pcm_substream *sub;
362 int stream, i;
363
364 spin_lock(&dev->spinlock);
365
366 for (i = 0; i < iso->actual_length;) {
367 if (i % (dev->n_streams * BYTES_PER_SAMPLE_USB) == 0) {
368 for (stream = 0;
369 stream < dev->n_streams;
370 stream++, i++) {
371 if (dev->first_packet)
372 continue;
373
374 check_byte = MAKE_CHECKBYTE(dev, stream, i);
375
376 if ((usb_buf[i] & 0x3f) != check_byte)
377 dev->input_panic = 1;
378
379 if (usb_buf[i] & 0x80)
380 dev->output_panic = 1;
381 }
382 }
383 dev->first_packet = 0;
384
385 for (stream = 0; stream < dev->n_streams; stream++, i++) {
386 sub = dev->sub_capture[stream];
387 if (sub) {
388 struct snd_pcm_runtime *rt = sub->runtime;
389 char *audio_buf = rt->dma_area;
390 int sz = frames_to_bytes(rt, rt->buffer_size);
391 audio_buf[dev->audio_in_buf_pos[stream]++]
392 = usb_buf[i];
393 dev->period_in_count[stream]++;
394 if (dev->audio_in_buf_pos[stream] == sz)
395 dev->audio_in_buf_pos[stream] = 0;
396 }
397 }
398 }
399
400 spin_unlock(&dev->spinlock);
401}
402
403static void read_in_urb(struct snd_usb_caiaqdev *dev,
404 const struct urb *urb,
405 const struct usb_iso_packet_descriptor *iso)
406{
407 if (!dev->streaming)
408 return;
409
410 switch (dev->spec.data_alignment) {
411 case 0:
412 read_in_urb_mode0(dev, urb, iso);
413 break;
414 case 2:
415 read_in_urb_mode2(dev, urb, iso);
416 break;
417 }
418
419 if (dev->input_panic || dev->output_panic) {
420 debug("streaming error detected %s %s\n",
421 dev->input_panic ? "(input)" : "",
422 dev->output_panic ? "(output)" : "");
423 }
424
425 check_for_elapsed_periods(dev, dev->sub_capture);
426}
427
428static void fill_out_urb(struct snd_usb_caiaqdev *dev,
429 struct urb *urb,
430 const struct usb_iso_packet_descriptor *iso)
431{
432 unsigned char *usb_buf = urb->transfer_buffer + iso->offset;
433 struct snd_pcm_substream *sub;
434 int stream, i;
435
436 spin_lock(&dev->spinlock);
437
438 for (i = 0; i < iso->length;) {
439 for (stream = 0; stream < dev->n_streams; stream++) {
440 sub = dev->sub_playback[stream];
441 if (sub) {
442 struct snd_pcm_runtime *rt = sub->runtime;
443 char *audio_buf = rt->dma_area;
444 int sz = frames_to_bytes(rt, rt->buffer_size);
445 usb_buf[i++]
446 = audio_buf[dev->audio_out_buf_pos[stream]++];
447 dev->audio_out_buf_pos[stream]++;
448 if (dev->audio_out_buf_pos[stream] == sz)
449 dev->audio_out_buf_pos[stream] = 0;
450 } else
451 usb_buf[i++] = 0;
452
453 /* fill in the check bytes */
454 if (dev->spec.data_alignment == 2 &&
455 i % (dev->n_streams * BYTES_PER_SAMPLE_USB) ==
456 (dev->n_streams * CHANNELS_PER_STREAM))
457 for (stream = 0; stream < dev->n_streams; stream++, i++)
458 usb_buf[i] = MAKE_CHECKBYTE(dev, stream, i);
459 }
460 }
461
462 spin_unlock(&dev->spinlock);
463 check_for_elapsed_periods(dev, dev->sub_playback);
464}
465
466static void read_completed(struct urb *urb)
467{
468 struct snd_usb_caiaq_cb_info *info = urb->context;
469 struct snd_usb_caiaqdev *dev;
470 struct urb *out;
471 int frame, len, send_it = 0, outframe = 0;
472
473 if (urb->status || !info)
474 return;
475
476 dev = info->dev;
477 if (!dev->streaming)
478 return;
479
480 out = dev->data_urbs_out[info->index];
481
482 /* read the recently received packet and send back one which has
483 * the same layout */
484 for (frame = 0; frame < FRAMES_PER_URB; frame++) {
485 if (urb->iso_frame_desc[frame].status)
486 continue;
487
488 len = urb->iso_frame_desc[outframe].actual_length;
489 out->iso_frame_desc[outframe].length = len;
490 out->iso_frame_desc[outframe].actual_length = 0;
491 out->iso_frame_desc[outframe].offset = BYTES_PER_FRAME * frame;
492
493 if (len > 0) {
494 fill_out_urb(dev, out, &out->iso_frame_desc[outframe]);
495 read_in_urb(dev, urb, &urb->iso_frame_desc[frame]);
496 send_it = 1;
497 }
498
499 outframe++;
500 }
501
502 if (send_it) {
503 out->number_of_packets = FRAMES_PER_URB;
504 out->transfer_flags = URB_ISO_ASAP;
505 usb_submit_urb(out, GFP_ATOMIC);
506 }
507
508 /* re-submit inbound urb */
509 for (frame = 0; frame < FRAMES_PER_URB; frame++) {
510 urb->iso_frame_desc[frame].offset = BYTES_PER_FRAME * frame;
511 urb->iso_frame_desc[frame].length = BYTES_PER_FRAME;
512 urb->iso_frame_desc[frame].actual_length = 0;
513 }
514
515 urb->number_of_packets = FRAMES_PER_URB;
516 urb->transfer_flags = URB_ISO_ASAP;
517 usb_submit_urb(urb, GFP_ATOMIC);
518}
519
520static void write_completed(struct urb *urb)
521{
522 struct snd_usb_caiaq_cb_info *info = urb->context;
523 struct snd_usb_caiaqdev *dev = info->dev;
524
525 if (!dev->output_running) {
526 dev->output_running = 1;
527 wake_up(&dev->prepare_wait_queue);
528 }
529}
530
531static struct urb **alloc_urbs(struct snd_usb_caiaqdev *dev, int dir, int *ret)
532{
533 int i, frame;
534 struct urb **urbs;
535 struct usb_device *usb_dev = dev->chip.dev;
536 unsigned int pipe;
537
538 pipe = (dir == SNDRV_PCM_STREAM_PLAYBACK) ?
539 usb_sndisocpipe(usb_dev, ENDPOINT_PLAYBACK) :
540 usb_rcvisocpipe(usb_dev, ENDPOINT_CAPTURE);
541
542 urbs = kmalloc(N_URBS * sizeof(*urbs), GFP_KERNEL);
543 if (!urbs) {
544 log("unable to kmalloc() urbs, OOM!?\n");
545 *ret = -ENOMEM;
546 return NULL;
547 }
548
549 for (i = 0; i < N_URBS; i++) {
550 urbs[i] = usb_alloc_urb(FRAMES_PER_URB, GFP_KERNEL);
551 if (!urbs[i]) {
552 log("unable to usb_alloc_urb(), OOM!?\n");
553 *ret = -ENOMEM;
554 return urbs;
555 }
556
557 urbs[i]->transfer_buffer =
558 kmalloc(FRAMES_PER_URB * BYTES_PER_FRAME, GFP_KERNEL);
559 if (!urbs[i]->transfer_buffer) {
560 log("unable to kmalloc() transfer buffer, OOM!?\n");
561 *ret = -ENOMEM;
562 return urbs;
563 }
564
565 for (frame = 0; frame < FRAMES_PER_URB; frame++) {
566 struct usb_iso_packet_descriptor *iso =
567 &urbs[i]->iso_frame_desc[frame];
568
569 iso->offset = BYTES_PER_FRAME * frame;
570 iso->length = BYTES_PER_FRAME;
571 }
572
573 urbs[i]->dev = usb_dev;
574 urbs[i]->pipe = pipe;
575 urbs[i]->transfer_buffer_length = FRAMES_PER_URB
576 * BYTES_PER_FRAME;
577 urbs[i]->context = &dev->data_cb_info[i];
578 urbs[i]->interval = 1;
579 urbs[i]->transfer_flags = URB_ISO_ASAP;
580 urbs[i]->number_of_packets = FRAMES_PER_URB;
581 urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ?
582 read_completed : write_completed;
583 }
584
585 *ret = 0;
586 return urbs;
587}
588
589static void free_urbs(struct urb **urbs)
590{
591 int i;
592
593 if (!urbs)
594 return;
595
596 for (i = 0; i < N_URBS; i++) {
597 if (!urbs[i])
598 continue;
599
600 usb_kill_urb(urbs[i]);
601 kfree(urbs[i]->transfer_buffer);
602 usb_free_urb(urbs[i]);
603 }
604
605 kfree(urbs);
606}
607
608int __devinit snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *dev)
609{
610 int i, ret;
611
612 dev->n_audio_in = max(dev->spec.num_analog_audio_in,
613 dev->spec.num_digital_audio_in) /
614 CHANNELS_PER_STREAM;
615 dev->n_audio_out = max(dev->spec.num_analog_audio_out,
616 dev->spec.num_digital_audio_out) /
617 CHANNELS_PER_STREAM;
618 dev->n_streams = max(dev->n_audio_in, dev->n_audio_out);
619
620 debug("dev->n_audio_in = %d\n", dev->n_audio_in);
621 debug("dev->n_audio_out = %d\n", dev->n_audio_out);
622 debug("dev->n_streams = %d\n", dev->n_streams);
623
624 if (dev->n_streams > MAX_STREAMS) {
625 log("unable to initialize device, too many streams.\n");
626 return -EINVAL;
627 }
628
629 ret = snd_pcm_new(dev->chip.card, dev->product_name, 0,
630 dev->n_audio_out, dev->n_audio_in, &dev->pcm);
631
632 if (ret < 0) {
633 log("snd_pcm_new() returned %d\n", ret);
634 return ret;
635 }
636
637 dev->pcm->private_data = dev;
638 strcpy(dev->pcm->name, dev->product_name);
639
640 memset(dev->sub_playback, 0, sizeof(dev->sub_playback));
641 memset(dev->sub_capture, 0, sizeof(dev->sub_capture));
642
643 memcpy(&dev->pcm_info, &snd_usb_caiaq_pcm_hardware,
644 sizeof(snd_usb_caiaq_pcm_hardware));
645
646 /* setup samplerates */
647 dev->samplerates = dev->pcm_info.rates;
648 switch (dev->chip.usb_id) {
649 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
650 dev->samplerates |= SNDRV_PCM_RATE_88200;
651 dev->samplerates |= SNDRV_PCM_RATE_192000;
652 break;
653 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
654 dev->samplerates |= SNDRV_PCM_RATE_88200;
655 break;
656 }
657
658 snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_PLAYBACK,
659 &snd_usb_caiaq_ops);
660 snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_CAPTURE,
661 &snd_usb_caiaq_ops);
662
663 snd_pcm_lib_preallocate_pages_for_all(dev->pcm,
664 SNDRV_DMA_TYPE_CONTINUOUS,
665 snd_dma_continuous_data(GFP_KERNEL),
666 MAX_BUFFER_SIZE, MAX_BUFFER_SIZE);
667
668 dev->data_cb_info =
669 kmalloc(sizeof(struct snd_usb_caiaq_cb_info) * N_URBS,
670 GFP_KERNEL);
671
672 if (!dev->data_cb_info)
673 return -ENOMEM;
674
675 for (i = 0; i < N_URBS; i++) {
676 dev->data_cb_info[i].dev = dev;
677 dev->data_cb_info[i].index = i;
678 }
679
680 dev->data_urbs_in = alloc_urbs(dev, SNDRV_PCM_STREAM_CAPTURE, &ret);
681 if (ret < 0) {
682 kfree(dev->data_cb_info);
683 free_urbs(dev->data_urbs_in);
684 return ret;
685 }
686
687 dev->data_urbs_out = alloc_urbs(dev, SNDRV_PCM_STREAM_PLAYBACK, &ret);
688 if (ret < 0) {
689 kfree(dev->data_cb_info);
690 free_urbs(dev->data_urbs_in);
691 free_urbs(dev->data_urbs_out);
692 return ret;
693 }
694
695 return 0;
696}
697
698void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *dev)
699{
700 debug("snd_usb_caiaq_audio_free (%p)\n", dev);
701 stream_stop(dev);
702 free_urbs(dev->data_urbs_in);
703 free_urbs(dev->data_urbs_out);
704 kfree(dev->data_cb_info);
705}
706
diff --git a/sound/usb/caiaq/caiaq-audio.h b/sound/usb/caiaq/caiaq-audio.h
new file mode 100644
index 000000000000..8ab1f8d9529e
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-audio.h
@@ -0,0 +1,7 @@
1#ifndef CAIAQ_AUDIO_H
2#define CAIAQ_AUDIO_H
3
4int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *dev);
5void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *dev);
6
7#endif /* CAIAQ_AUDIO_H */
diff --git a/sound/usb/caiaq/caiaq-device.c b/sound/usb/caiaq/caiaq-device.c
new file mode 100644
index 000000000000..4709347326f9
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-device.c
@@ -0,0 +1,436 @@
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/driver.h>
30#include <sound/core.h>
31#include <sound/initval.h>
32#include <sound/pcm.h>
33#include <sound/rawmidi.h>
34
35#include "caiaq-device.h"
36#include "caiaq-audio.h"
37#include "caiaq-midi.h"
38
39#ifdef CONFIG_SND_USB_CAIAQ_INPUT
40#include "caiaq-input.h"
41#endif
42
43MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
44MODULE_DESCRIPTION("caiaq USB audio, version 1.1.0");
45MODULE_LICENSE("GPL");
46MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
47 "{Native Instruments, Kore Controller},"
48 "{Native Instruments, Audio Kontrol 1}"
49 "{Native Instruments, Audio 8 DJ}}");
50
51static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
52static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
53static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
54static int snd_card_used[SNDRV_CARDS];
55
56module_param_array(index, int, NULL, 0444);
57MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
58module_param_array(id, charp, NULL, 0444);
59MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
60module_param_array(enable, bool, NULL, 0444);
61MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");
62
63enum {
64 SAMPLERATE_44100 = 0,
65 SAMPLERATE_48000 = 1,
66 SAMPLERATE_96000 = 2,
67 SAMPLERATE_192000 = 3,
68 SAMPLERATE_88200 = 4,
69 SAMPLERATE_INVALID = 0xff
70};
71
72enum {
73 DEPTH_NONE = 0,
74 DEPTH_16 = 1,
75 DEPTH_24 = 2,
76 DEPTH_32 = 3
77};
78
79static struct usb_device_id snd_usb_id_table[] = {
80 {
81 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
82 .idVendor = USB_VID_NATIVEINSTRUMENTS,
83 .idProduct = USB_PID_RIGKONTROL2
84 },
85 {
86 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
87 .idVendor = USB_VID_NATIVEINSTRUMENTS,
88 .idProduct = USB_PID_KORECONTROLLER
89 },
90 {
91 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
92 .idVendor = USB_VID_NATIVEINSTRUMENTS,
93 .idProduct = USB_PID_AK1
94 },
95 {
96 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
97 .idVendor = USB_VID_NATIVEINSTRUMENTS,
98 .idProduct = USB_PID_AUDIO8DJ
99 },
100 { /* terminator */ }
101};
102
103static void usb_ep1_command_reply_dispatch (struct urb* urb)
104{
105 int ret;
106 struct snd_usb_caiaqdev *dev = urb->context;
107 unsigned char *buf = urb->transfer_buffer;
108
109 if (urb->status || !dev) {
110 log("received EP1 urb->status = %i\n", urb->status);
111 return;
112 }
113
114 switch(buf[0]) {
115 case EP1_CMD_GET_DEVICE_INFO:
116 memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
117 dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
118 debug("device spec (firmware %d): audio: %d in, %d out, "
119 "MIDI: %d in, %d out, data alignment %d\n",
120 dev->spec.fw_version,
121 dev->spec.num_analog_audio_in,
122 dev->spec.num_analog_audio_out,
123 dev->spec.num_midi_in,
124 dev->spec.num_midi_out,
125 dev->spec.data_alignment);
126
127 dev->spec_received++;
128 wake_up(&dev->ep1_wait_queue);
129 break;
130 case EP1_CMD_AUDIO_PARAMS:
131 dev->audio_parm_answer = buf[1];
132 wake_up(&dev->ep1_wait_queue);
133 break;
134 case EP1_CMD_MIDI_READ:
135 snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
136 break;
137
138#ifdef CONFIG_SND_USB_CAIAQ_INPUT
139 case EP1_CMD_READ_ERP:
140 case EP1_CMD_READ_ANALOG:
141 case EP1_CMD_READ_IO:
142 snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
143 break;
144#endif
145 }
146
147 dev->ep1_in_urb.actual_length = 0;
148 ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
149 if (ret < 0)
150 log("unable to submit urb. OOM!?\n");
151}
152
153static int send_command (struct snd_usb_caiaqdev *dev,
154 unsigned char command,
155 const unsigned char *buffer,
156 int len)
157{
158 int actual_len;
159 struct usb_device *usb_dev = dev->chip.dev;
160
161 if (!usb_dev)
162 return -EIO;
163
164 if (len > EP1_BUFSIZE - 1)
165 len = EP1_BUFSIZE - 1;
166
167 if (buffer && len > 0)
168 memcpy(dev->ep1_out_buf+1, buffer, len);
169
170 dev->ep1_out_buf[0] = command;
171 return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
172 dev->ep1_out_buf, len+1, &actual_len, 200);
173}
174
175int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
176 int rate, int depth, int bpp)
177{
178 int ret;
179 char tmp[5];
180
181 switch (rate) {
182 case 44100: tmp[0] = SAMPLERATE_44100; break;
183 case 48000: tmp[0] = SAMPLERATE_48000; break;
184 case 88200: tmp[0] = SAMPLERATE_88200; break;
185 case 96000: tmp[0] = SAMPLERATE_96000; break;
186 case 192000: tmp[0] = SAMPLERATE_192000; break;
187 default: return -EINVAL;
188 }
189
190 switch (depth) {
191 case 16: tmp[1] = DEPTH_16; break;
192 case 24: tmp[1] = DEPTH_24; break;
193 default: return -EINVAL;
194 }
195
196 tmp[2] = bpp & 0xff;
197 tmp[3] = bpp >> 8;
198 tmp[4] = 1; /* packets per microframe */
199
200 debug("setting audio params: %d Hz, %d bits, %d bpp\n",
201 rate, depth, bpp);
202
203 dev->audio_parm_answer = -1;
204 ret = send_command(dev, EP1_CMD_AUDIO_PARAMS, tmp, sizeof(tmp));
205
206 if (ret)
207 return ret;
208
209 if (!wait_event_timeout(dev->ep1_wait_queue,
210 dev->audio_parm_answer >= 0, HZ))
211 return -EPIPE;
212
213 if (dev->audio_parm_answer != 1)
214 debug("unable to set the device's audio params\n");
215
216 return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
217}
218
219int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev,
220 int digital, int analog, int erp)
221{
222 char tmp[3] = { digital, analog, erp };
223 return send_command(dev, EP1_CMD_AUTO_MSG, tmp, sizeof(tmp));
224}
225
226static void setup_card(struct snd_usb_caiaqdev *dev)
227{
228 int ret;
229 char val[3];
230
231 /* device-specific startup specials */
232 switch (dev->chip.usb_id) {
233 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
234 /* RigKontrol2 - display centered dash ('-') */
235 val[0] = 0x00;
236 val[1] = 0x00;
237 val[2] = 0x01;
238 send_command(dev, EP1_CMD_WRITE_IO, val, 3);
239 break;
240 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
241 /* Audio Kontrol 1 - make USB-LED stop blinking */
242 val[0] = 0x00;
243 send_command(dev, EP1_CMD_WRITE_IO, val, 1);
244 break;
245 }
246
247 ret = snd_usb_caiaq_audio_init(dev);
248 if (ret < 0)
249 log("Unable to set up audio system (ret=%d)\n", ret);
250
251 ret = snd_usb_caiaq_midi_init(dev);
252 if (ret < 0)
253 log("Unable to set up MIDI system (ret=%d)\n", ret);
254
255#ifdef CONFIG_SND_USB_CAIAQ_INPUT
256 ret = snd_usb_caiaq_input_init(dev);
257 if (ret < 0)
258 log("Unable to set up input system (ret=%d)\n", ret);
259#endif
260
261 /* finally, register the card and all its sub-instances */
262 ret = snd_card_register(dev->chip.card);
263 if (ret < 0) {
264 log("snd_card_register() returned %d\n", ret);
265 snd_card_free(dev->chip.card);
266 }
267}
268
269static struct snd_card* create_card(struct usb_device* usb_dev)
270{
271 int devnum;
272 struct snd_card *card;
273 struct snd_usb_caiaqdev *dev;
274
275 for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
276 if (enable[devnum] && !snd_card_used[devnum])
277 break;
278
279 if (devnum >= SNDRV_CARDS)
280 return NULL;
281
282 card = snd_card_new(index[devnum], id[devnum], THIS_MODULE,
283 sizeof(struct snd_usb_caiaqdev));
284 if (!card)
285 return NULL;
286
287 dev = caiaqdev(card);
288 dev->chip.dev = usb_dev;
289 dev->chip.card = card;
290 dev->chip.usb_id = USB_ID(usb_dev->descriptor.idVendor,
291 usb_dev->descriptor.idProduct);
292 spin_lock_init(&dev->spinlock);
293 snd_card_set_dev(card, &usb_dev->dev);
294
295 return card;
296}
297
298static int init_card(struct snd_usb_caiaqdev *dev)
299{
300 char *c;
301 struct usb_device *usb_dev = dev->chip.dev;
302 struct snd_card *card = dev->chip.card;
303 int err, len;
304
305 if (usb_set_interface(usb_dev, 0, 1) != 0) {
306 log("can't set alt interface.\n");
307 return -EIO;
308 }
309
310 usb_init_urb(&dev->ep1_in_urb);
311 usb_init_urb(&dev->midi_out_urb);
312
313 usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev,
314 usb_rcvbulkpipe(usb_dev, 0x1),
315 dev->ep1_in_buf, EP1_BUFSIZE,
316 usb_ep1_command_reply_dispatch, dev);
317
318 usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev,
319 usb_sndbulkpipe(usb_dev, 0x1),
320 dev->midi_out_buf, EP1_BUFSIZE,
321 snd_usb_caiaq_midi_output_done, dev);
322
323 init_waitqueue_head(&dev->ep1_wait_queue);
324 init_waitqueue_head(&dev->prepare_wait_queue);
325
326 if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
327 return -EIO;
328
329 err = send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
330 if (err)
331 return err;
332
333 if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
334 return -ENODEV;
335
336 usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
337 dev->vendor_name, CAIAQ_USB_STR_LEN);
338
339 usb_string(usb_dev, usb_dev->descriptor.iProduct,
340 dev->product_name, CAIAQ_USB_STR_LEN);
341
342 usb_string(usb_dev, usb_dev->descriptor.iSerialNumber,
343 dev->serial, CAIAQ_USB_STR_LEN);
344
345 /* terminate serial string at first white space occurence */
346 c = strchr(dev->serial, ' ');
347 if (c)
348 *c = '\0';
349
350 strcpy(card->driver, MODNAME);
351 strcpy(card->shortname, dev->product_name);
352
353 len = snprintf(card->longname, sizeof(card->longname),
354 "%s %s (serial %s, ",
355 dev->vendor_name, dev->product_name, dev->serial);
356
357 if (len < sizeof(card->longname) - 2)
358 len += usb_make_path(usb_dev, card->longname + len,
359 sizeof(card->longname) - len);
360
361 card->longname[len++] = ')';
362 card->longname[len] = '\0';
363 setup_card(dev);
364 return 0;
365}
366
367static int snd_probe(struct usb_interface *intf,
368 const struct usb_device_id *id)
369{
370 int ret;
371 struct snd_card *card;
372 struct usb_device *device = interface_to_usbdev(intf);
373
374 card = create_card(device);
375
376 if (!card)
377 return -ENOMEM;
378
379 dev_set_drvdata(&intf->dev, card);
380 ret = init_card(caiaqdev(card));
381 if (ret < 0) {
382 log("unable to init card! (ret=%d)\n", ret);
383 snd_card_free(card);
384 return ret;
385 }
386
387 return 0;
388}
389
390static void snd_disconnect(struct usb_interface *intf)
391{
392 struct snd_usb_caiaqdev *dev;
393 struct snd_card *card = dev_get_drvdata(&intf->dev);
394
395 debug("snd_disconnect(%p)\n", intf);
396
397 if (!card)
398 return;
399
400 dev = caiaqdev(card);
401 snd_card_disconnect(card);
402
403#ifdef CONFIG_SND_USB_CAIAQ_INPUT
404 snd_usb_caiaq_input_free(dev);
405#endif
406 snd_usb_caiaq_audio_free(dev);
407
408 usb_kill_urb(&dev->ep1_in_urb);
409 usb_kill_urb(&dev->midi_out_urb);
410
411 snd_card_free(card);
412 usb_reset_device(interface_to_usbdev(intf));
413}
414
415
416MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
417static struct usb_driver snd_usb_driver = {
418 .name = MODNAME,
419 .probe = snd_probe,
420 .disconnect = snd_disconnect,
421 .id_table = snd_usb_id_table,
422};
423
424static int __init snd_module_init(void)
425{
426 return usb_register(&snd_usb_driver);
427}
428
429static void __exit snd_module_exit(void)
430{
431 usb_deregister(&snd_usb_driver);
432}
433
434module_init(snd_module_init)
435module_exit(snd_module_exit)
436
diff --git a/sound/usb/caiaq/caiaq-device.h b/sound/usb/caiaq/caiaq-device.h
new file mode 100644
index 000000000000..088d5ec241f3
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-device.h
@@ -0,0 +1,116 @@
1#ifndef CAIAQ_DEVICE_H
2#define CAIAQ_DEVICE_H
3
4#include "../usbaudio.h"
5
6#define USB_VID_NATIVEINSTRUMENTS 0x17cc
7
8#define USB_PID_RIGKONTROL2 0x1969
9#define USB_PID_KORECONTROLLER 0x4711
10#define USB_PID_AK1 0x0815
11#define USB_PID_AUDIO8DJ 0x1978
12
13#define EP1_BUFSIZE 64
14#define CAIAQ_USB_STR_LEN 0xff
15#define MAX_STREAMS 32
16
17//#define SND_USB_CAIAQ_DEBUG
18
19#define MODNAME "snd-usb-caiaq"
20#define log(x...) snd_printk(KERN_WARNING MODNAME" log: " x)
21
22#ifdef SND_USB_CAIAQ_DEBUG
23#define debug(x...) snd_printk(KERN_WARNING MODNAME " debug: " x)
24#else
25#define debug(x...) do { } while(0)
26#endif
27
28#define EP1_CMD_GET_DEVICE_INFO 0x1
29#define EP1_CMD_READ_ERP 0x2
30#define EP1_CMD_READ_ANALOG 0x3
31#define EP1_CMD_READ_IO 0x4
32#define EP1_CMD_WRITE_IO 0x5
33#define EP1_CMD_MIDI_READ 0x6
34#define EP1_CMD_MIDI_WRITE 0x7
35#define EP1_CMD_AUDIO_PARAMS 0x9
36#define EP1_CMD_AUTO_MSG 0xb
37
38struct caiaq_device_spec {
39 unsigned short fw_version;
40 unsigned char hw_subtype;
41 unsigned char num_erp;
42 unsigned char num_analog_in;
43 unsigned char num_digital_in;
44 unsigned char num_digital_out;
45 unsigned char num_analog_audio_out;
46 unsigned char num_analog_audio_in;
47 unsigned char num_digital_audio_out;
48 unsigned char num_digital_audio_in;
49 unsigned char num_midi_out;
50 unsigned char num_midi_in;
51 unsigned char data_alignment;
52} __attribute__ ((packed));
53
54struct snd_usb_caiaq_cb_info;
55
56struct snd_usb_caiaqdev {
57 struct snd_usb_audio chip;
58
59 struct urb ep1_in_urb;
60 struct urb midi_out_urb;
61 struct urb **data_urbs_in;
62 struct urb **data_urbs_out;
63 struct snd_usb_caiaq_cb_info *data_cb_info;
64
65 unsigned char ep1_in_buf[EP1_BUFSIZE];
66 unsigned char ep1_out_buf[EP1_BUFSIZE];
67 unsigned char midi_out_buf[EP1_BUFSIZE];
68
69 struct caiaq_device_spec spec;
70 spinlock_t spinlock;
71 wait_queue_head_t ep1_wait_queue;
72 wait_queue_head_t prepare_wait_queue;
73 int spec_received, audio_parm_answer;
74
75 char vendor_name[CAIAQ_USB_STR_LEN];
76 char product_name[CAIAQ_USB_STR_LEN];
77 char serial[CAIAQ_USB_STR_LEN];
78
79 int n_streams, n_audio_in, n_audio_out;
80 int streaming, first_packet, output_running;
81 int audio_in_buf_pos[MAX_STREAMS];
82 int audio_out_buf_pos[MAX_STREAMS];
83 int period_in_count[MAX_STREAMS];
84 int period_out_count[MAX_STREAMS];
85 int input_panic, output_panic;
86 char *audio_in_buf, *audio_out_buf;
87 unsigned int samplerates;
88
89 struct snd_pcm_substream *sub_playback[MAX_STREAMS];
90 struct snd_pcm_substream *sub_capture[MAX_STREAMS];
91
92 /* Linux input */
93#ifdef CONFIG_SND_USB_CAIAQ_INPUT
94 struct input_dev *input_dev;
95#endif
96
97 /* ALSA */
98 struct snd_pcm *pcm;
99 struct snd_pcm_hardware pcm_info;
100 struct snd_rawmidi *rmidi;
101 struct snd_rawmidi_substream *midi_receive_substream;
102 struct snd_rawmidi_substream *midi_out_substream;
103};
104
105struct snd_usb_caiaq_cb_info {
106 struct snd_usb_caiaqdev *dev;
107 int index;
108};
109
110#define caiaqdev(c) ((struct snd_usb_caiaqdev*)(c)->private_data)
111
112int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev, int rate, int depth, int bbp);
113int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev, int digital, int analog, int erp);
114
115
116#endif /* CAIAQ_DEVICE_H */
diff --git a/sound/usb/caiaq/caiaq-input.c b/sound/usb/caiaq/caiaq-input.c
new file mode 100644
index 000000000000..3acd12db6952
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-input.c
@@ -0,0 +1,246 @@
1/*
2 * Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17*/
18
19#include <linux/init.h>
20#include <linux/module.h>
21#include <linux/moduleparam.h>
22#include <linux/input.h>
23#include <linux/usb.h>
24#include <linux/spinlock.h>
25#include <sound/driver.h>
26#include <sound/core.h>
27#include <sound/rawmidi.h>
28#include <sound/pcm.h>
29#include "caiaq-device.h"
30#include "caiaq-input.h"
31
32#ifdef CONFIG_SND_USB_CAIAQ_INPUT
33
34static unsigned char keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
35static unsigned char keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
36 KEY_5, KEY_6, KEY_7 };
37
38#define DEG90 (range/2)
39#define DEG180 (range)
40#define DEG270 (DEG90 + DEG180)
41#define DEG360 (DEG180 * 2)
42#define HIGH_PEAK (268)
43#define LOW_PEAK (-7)
44
45/* some of these devices have endless rotation potentiometers
46 * built in which use two tapers, 90 degrees phase shifted.
47 * this algorithm decodes them to one single value, ranging
48 * from 0 to 999 */
49static unsigned int decode_erp(unsigned char a, unsigned char b)
50{
51 int weight_a, weight_b;
52 int pos_a, pos_b;
53 int ret;
54 int range = HIGH_PEAK - LOW_PEAK;
55 int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
56
57 weight_b = abs(mid_value-a) - (range/2 - 100)/2;
58
59 if (weight_b < 0)
60 weight_b = 0;
61
62 if (weight_b > 100)
63 weight_b = 100;
64
65 weight_a = 100 - weight_b;
66
67 if (a < mid_value) {
68 /* 0..90 and 270..360 degrees */
69 pos_b = b - LOW_PEAK + DEG270;
70 if (pos_b >= DEG360)
71 pos_b -= DEG360;
72 } else
73 /* 90..270 degrees */
74 pos_b = HIGH_PEAK - b + DEG90;
75
76
77 if (b > mid_value)
78 /* 0..180 degrees */
79 pos_a = a - LOW_PEAK;
80 else
81 /* 180..360 degrees */
82 pos_a = HIGH_PEAK - a + DEG180;
83
84 /* interpolate both slider values, depending on weight factors */
85 /* 0..99 x DEG360 */
86 ret = pos_a * weight_a + pos_b * weight_b;
87
88 /* normalize to 0..999 */
89 ret *= 10;
90 ret /= DEG360;
91
92 if (ret < 0)
93 ret += 1000;
94
95 if (ret >= 1000)
96 ret -= 1000;
97
98 return ret;
99}
100
101#undef DEG90
102#undef DEG180
103#undef DEG270
104#undef DEG360
105#undef HIGH_PEAK
106#undef LOW_PEAK
107
108
109static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
110 const char *buf, unsigned int len)
111{
112 switch(dev->input_dev->id.product) {
113 case USB_PID_RIGKONTROL2:
114 input_report_abs(dev->input_dev, ABS_X, (buf[4] << 8) |buf[5]);
115 input_report_abs(dev->input_dev, ABS_Y, (buf[0] << 8) |buf[1]);
116 input_report_abs(dev->input_dev, ABS_Z, (buf[2] << 8) |buf[3]);
117 input_sync(dev->input_dev);
118 break;
119 }
120}
121
122static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
123 const char *buf, unsigned int len)
124{
125 int i;
126
127 switch(dev->input_dev->id.product) {
128 case USB_PID_AK1:
129 i = decode_erp(buf[0], buf[1]);
130 input_report_abs(dev->input_dev, ABS_X, i);
131 input_sync(dev->input_dev);
132 break;
133 }
134}
135
136static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev,
137 char *buf, unsigned int len)
138{
139 int i;
140 unsigned char *keycode = dev->input_dev->keycode;
141
142 if (!keycode)
143 return;
144
145 if (dev->input_dev->id.product == USB_PID_RIGKONTROL2)
146 for (i=0; i<len; i++)
147 buf[i] = ~buf[i];
148
149 for (i=0; (i<dev->input_dev->keycodemax) && (i < len); i++)
150 input_report_key(dev->input_dev, keycode[i],
151 buf[i/8] & (1 << (i%8)));
152
153 input_sync(dev->input_dev);
154}
155
156void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev,
157 char *buf,
158 unsigned int len)
159{
160 if (!dev->input_dev || (len < 1))
161 return;
162
163 switch (buf[0]) {
164 case EP1_CMD_READ_ANALOG:
165 snd_caiaq_input_read_analog(dev, buf+1, len-1);
166 break;
167 case EP1_CMD_READ_ERP:
168 snd_caiaq_input_read_erp(dev, buf+1, len-1);
169 break;
170 case EP1_CMD_READ_IO:
171 snd_caiaq_input_read_io(dev, buf+1, len-1);
172 break;
173 }
174}
175
176int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
177{
178 struct usb_device *usb_dev = dev->chip.dev;
179 struct input_dev *input;
180 int i, ret;
181
182 input = input_allocate_device();
183 if (!input)
184 return -ENOMEM;
185
186 input->name = dev->product_name;
187 input->id.bustype = BUS_USB;
188 input->id.vendor = usb_dev->descriptor.idVendor;
189 input->id.product = usb_dev->descriptor.idProduct;
190 input->id.version = usb_dev->descriptor.bcdDevice;
191
192 switch (dev->chip.usb_id) {
193 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
194 input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
195 input->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_Z);
196 input->keycode = keycode_rk2;
197 input->keycodesize = sizeof(char);
198 input->keycodemax = ARRAY_SIZE(keycode_rk2);
199 for (i=0; i<ARRAY_SIZE(keycode_rk2); i++)
200 set_bit(keycode_rk2[i], input->keybit);
201
202 input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
203 input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
204 input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
205 snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
206 break;
207 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
208 input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
209 input->absbit[0] = BIT(ABS_X);
210 input->keycode = keycode_ak1;
211 input->keycodesize = sizeof(char);
212 input->keycodemax = ARRAY_SIZE(keycode_ak1);
213 for (i=0; i<ARRAY_SIZE(keycode_ak1); i++)
214 set_bit(keycode_ak1[i], input->keybit);
215
216 input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
217 snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5);
218 break;
219 default:
220 /* no input methods supported on this device */
221 input_free_device(input);
222 return 0;
223 }
224
225 ret = input_register_device(input);
226 if (ret < 0) {
227 input_free_device(input);
228 return ret;
229 }
230
231 dev->input_dev = input;
232 return 0;
233}
234
235void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev)
236{
237 if (!dev || !dev->input_dev)
238 return;
239
240 input_unregister_device(dev->input_dev);
241 input_free_device(dev->input_dev);
242 dev->input_dev = NULL;
243}
244
245#endif /* CONFIG_SND_USB_CAIAQ_INPUT */
246
diff --git a/sound/usb/caiaq/caiaq-input.h b/sound/usb/caiaq/caiaq-input.h
new file mode 100644
index 000000000000..ced535577864
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-input.h
@@ -0,0 +1,8 @@
1#ifndef CAIAQ_INPUT_H
2#define CAIAQ_INPUT_H
3
4void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev, char *buf, unsigned int len);
5int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev);
6void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev);
7
8#endif
diff --git a/sound/usb/caiaq/caiaq-midi.c b/sound/usb/caiaq/caiaq-midi.c
new file mode 100644
index 000000000000..793ca20ce349
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-midi.c
@@ -0,0 +1,177 @@
1/*
2 * Copyright (c) 2006,2007 Daniel Mack
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17*/
18
19#include <linux/init.h>
20#include <linux/module.h>
21#include <linux/moduleparam.h>
22#include <linux/interrupt.h>
23#include <linux/usb.h>
24#include <linux/input.h>
25#include <linux/spinlock.h>
26#include <sound/driver.h>
27#include <sound/core.h>
28#include <sound/rawmidi.h>
29#include <sound/pcm.h>
30
31#include "caiaq-device.h"
32#include "caiaq-midi.h"
33
34
35static int snd_usb_caiaq_midi_input_open(struct snd_rawmidi_substream *substream)
36{
37 return 0;
38}
39
40static int snd_usb_caiaq_midi_input_close(struct snd_rawmidi_substream *substream)
41{
42 return 0;
43}
44
45static void snd_usb_caiaq_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
46{
47 struct snd_usb_caiaqdev *dev = substream->rmidi->private_data;
48
49 if (!dev)
50 return;
51
52 dev->midi_receive_substream = up ? substream : NULL;
53}
54
55
56static int snd_usb_caiaq_midi_output_open(struct snd_rawmidi_substream *substream)
57{
58 return 0;
59}
60
61static int snd_usb_caiaq_midi_output_close(struct snd_rawmidi_substream *substream)
62{
63 return 0;
64}
65
66static void snd_usb_caiaq_midi_send(struct snd_usb_caiaqdev *dev,
67 struct snd_rawmidi_substream *substream)
68{
69 int len, ret;
70
71 dev->midi_out_buf[0] = EP1_CMD_MIDI_WRITE;
72 dev->midi_out_buf[1] = 0; /* port */
73 len = snd_rawmidi_transmit_peek(substream, dev->midi_out_buf+3, EP1_BUFSIZE-3);
74
75 if (len <= 0)
76 return;
77
78 dev->midi_out_buf[2] = len;
79 dev->midi_out_urb.transfer_buffer_length = len+3;
80
81 ret = usb_submit_urb(&dev->midi_out_urb, GFP_ATOMIC);
82 if (ret < 0)
83 log("snd_usb_caiaq_midi_send(%p): usb_submit_urb() failed, %d\n",
84 substream, ret);
85}
86
87static void snd_usb_caiaq_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
88{
89 struct snd_usb_caiaqdev *dev = substream->rmidi->private_data;
90
91 if (dev->midi_out_substream != NULL)
92 return;
93
94 if (!up) {
95 dev->midi_out_substream = NULL;
96 return;
97 }
98
99 dev->midi_out_substream = substream;
100 snd_usb_caiaq_midi_send(dev, substream);
101}
102
103
104static struct snd_rawmidi_ops snd_usb_caiaq_midi_output =
105{
106 .open = snd_usb_caiaq_midi_output_open,
107 .close = snd_usb_caiaq_midi_output_close,
108 .trigger = snd_usb_caiaq_midi_output_trigger,
109};
110
111static struct snd_rawmidi_ops snd_usb_caiaq_midi_input =
112{
113 .open = snd_usb_caiaq_midi_input_open,
114 .close = snd_usb_caiaq_midi_input_close,
115 .trigger = snd_usb_caiaq_midi_input_trigger,
116};
117
118void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *dev,
119 int port, const char *buf, int len)
120{
121 if (!dev->midi_receive_substream)
122 return;
123
124 snd_rawmidi_receive(dev->midi_receive_substream, buf, len);
125}
126
127int __devinit snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *device)
128{
129 int ret;
130 struct snd_rawmidi *rmidi;
131
132 ret = snd_rawmidi_new(device->chip.card, device->product_name, 0,
133 device->spec.num_midi_out,
134 device->spec.num_midi_in,
135 &rmidi);
136
137 if (ret < 0)
138 return ret;
139
140 strcpy(rmidi->name, device->product_name);
141
142 rmidi->info_flags = SNDRV_RAWMIDI_INFO_DUPLEX;
143 rmidi->private_data = device;
144
145 if (device->spec.num_midi_out > 0) {
146 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
147 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
148 &snd_usb_caiaq_midi_output);
149 }
150
151 if (device->spec.num_midi_in > 0) {
152 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
153 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
154 &snd_usb_caiaq_midi_input);
155 }
156
157 device->rmidi = rmidi;
158
159 return 0;
160}
161
162void snd_usb_caiaq_midi_output_done(struct urb* urb)
163{
164 struct snd_usb_caiaqdev *dev = urb->context;
165 char *buf = urb->transfer_buffer;
166
167 if (urb->status != 0)
168 return;
169
170 if (!dev->midi_out_substream)
171 return;
172
173 snd_rawmidi_transmit_ack(dev->midi_out_substream, buf[2]);
174 dev->midi_out_substream = NULL;
175 snd_usb_caiaq_midi_send(dev, dev->midi_out_substream);
176}
177
diff --git a/sound/usb/caiaq/caiaq-midi.h b/sound/usb/caiaq/caiaq-midi.h
new file mode 100644
index 000000000000..9d16db027fc3
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-midi.h
@@ -0,0 +1,8 @@
1#ifndef CAIAQ_MIDI_H
2#define CAIAQ_MIDI_H
3
4int snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *dev);
5void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *dev, int port, const char *buf, int len);
6void snd_usb_caiaq_midi_output_done(struct urb* urb);
7
8#endif /* CAIAQ_MIDI_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-25 04:33:55 -0400