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12#include "driver.h"
13
14#include "audio.h"
15#include "control.h"
16#include "variax.h"
17
18
19#define VARIAX_SYSEX_CODE 7
20#define VARIAX_SYSEX_PARAM 0x3b
21#define VARIAX_SYSEX_ACTIVATE 0x2a
22#define VARIAX_MODEL_HEADER_LENGTH 7
23#define VARIAX_MODEL_MESSAGE_LENGTH 199
24#define VARIAX_OFFSET_ACTIVATE 7
25
26
27static const char variax_activate[] = {
28 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x2a, 0x01,
29 0xf7
30};
31static const char variax_request_bank[] = {
32 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x6d, 0xf7
33};
34static const char variax_request_model1[] = {
35 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x3c, 0x00,
36 0x02, 0x00, 0x00, 0x00, 0x00, 0x03, 0x05, 0x03,
37 0x00, 0x00, 0x00, 0xf7
38};
39static const char variax_request_model2[] = {
40 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x3c, 0x00,
41 0x02, 0x00, 0x00, 0x00, 0x00, 0x03, 0x07, 0x03,
42 0x00, 0x00, 0x00, 0xf7
43};
44
45
46
47
48
49static void variax_decode(const unsigned char *raw_data, unsigned char *data,
50 int raw_size)
51{
52 for (; raw_size > 0; raw_size -= 6) {
53 data[2] = raw_data[0] | (raw_data[1] << 4);
54 data[1] = raw_data[2] | (raw_data[3] << 4);
55 data[0] = raw_data[4] | (raw_data[5] << 4);
56 raw_data += 6;
57 data += 3;
58 }
59}
60
61static void variax_activate_timeout(unsigned long arg)
62{
63 struct usb_line6_variax *variax = (struct usb_line6_variax *)arg;
64 variax->buffer_activate[VARIAX_OFFSET_ACTIVATE] = 1;
65 line6_send_raw_message_async(&variax->line6, variax->buffer_activate,
66 sizeof(variax_activate));
67}
68
69
70
71
72static void variax_activate_delayed(struct usb_line6_variax *variax,
73 int seconds)
74{
75 variax->activate_timer.expires = jiffies + seconds * HZ;
76 variax->activate_timer.function = variax_activate_timeout;
77 variax->activate_timer.data = (unsigned long)variax;
78 add_timer(&variax->activate_timer);
79}
80
81static void variax_startup_timeout(unsigned long arg)
82{
83 struct usb_line6_variax *variax = (struct usb_line6_variax *)arg;
84
85 if (variax->dumpreq.ok)
86 return;
87
88 line6_dump_request_async(&variax->dumpreq, &variax->line6, 0);
89 line6_startup_delayed(&variax->dumpreq, 1, variax_startup_timeout,
90 variax);
91}
92
93
94
95
96void variax_process_message(struct usb_line6_variax *variax)
97{
98 const unsigned char *buf = variax->line6.buffer_message;
99
100 switch (buf[0]) {
101 case LINE6_PARAM_CHANGE | LINE6_CHANNEL_HOST:
102 switch (buf[1]) {
103 case VARIAXMIDI_volume:
104 variax->volume = buf[2];
105 break;
106
107 case VARIAXMIDI_tone:
108 variax->tone = buf[2];
109 }
110
111 break;
112
113 case LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_DEVICE:
114 case LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_HOST:
115 variax->model = buf[1];
116 line6_dump_request_async(&variax->dumpreq, &variax->line6, 0);
117 break;
118
119 case LINE6_RESET:
120 dev_info(variax->line6.ifcdev, "VARIAX reset\n");
121 variax_activate_delayed(variax, VARIAX_ACTIVATE_DELAY);
122 break;
123
124 case LINE6_SYSEX_BEGIN:
125 if (memcmp(buf + 1, variax_request_model1 + 1,
126 VARIAX_MODEL_HEADER_LENGTH - 1) == 0) {
127 if (variax->line6.message_length ==
128 VARIAX_MODEL_MESSAGE_LENGTH) {
129 switch (variax->dumpreq.in_progress) {
130 case VARIAX_DUMP_PASS1:
131 variax_decode(buf + VARIAX_MODEL_HEADER_LENGTH, (unsigned char *)&variax->model_data,
132 (sizeof(variax->model_data.name) + sizeof(variax->model_data.control) / 2) * 2);
133 line6_dump_request_async(&variax->dumpreq, &variax->line6, 1);
134 line6_dump_started(&variax->dumpreq, VARIAX_DUMP_PASS2);
135 break;
136
137 case VARIAX_DUMP_PASS2:
138
139 variax_decode(buf + VARIAX_MODEL_HEADER_LENGTH,
140 (unsigned char *)&variax->model_data.control + sizeof(variax->model_data.control) / 2,
141 sizeof(variax->model_data.control) / 2 * 2);
142 variax->dumpreq.ok = 1;
143 line6_dump_request_async(&variax->dumpreq, &variax->line6, 2);
144 line6_dump_started(&variax->dumpreq, VARIAX_DUMP_PASS3);
145 }
146 } else {
147 DEBUG_MESSAGES(dev_err(variax->line6.ifcdev, "illegal length %d of model data\n", variax->line6.message_length));
148 line6_dump_finished(&variax->dumpreq);
149 }
150 } else if (memcmp(buf + 1, variax_request_bank + 1,
151 sizeof(variax_request_bank) - 2) == 0) {
152 memcpy(variax->bank,
153 buf + sizeof(variax_request_bank) - 1,
154 sizeof(variax->bank));
155 variax->dumpreq.ok = 1;
156 line6_dump_finished(&variax->dumpreq);
157 }
158
159 break;
160
161 case LINE6_SYSEX_END:
162 break;
163
164 default:
165 DEBUG_MESSAGES(dev_err(variax->line6.ifcdev, "Variax: unknown message %02X\n", buf[0]));
166 }
167}
168
169
170
171
172static ssize_t variax_get_volume(struct device *dev,
173 struct device_attribute *attr, char *buf)
174{
175 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
176 return sprintf(buf, "%d\n", variax->volume);
177}
178
179
180
181
182static ssize_t variax_set_volume(struct device *dev,
183 struct device_attribute *attr,
184 const char *buf, size_t count)
185{
186 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
187 int value = simple_strtoul(buf, NULL, 10);
188
189 if (line6_transmit_parameter(&variax->line6, VARIAXMIDI_volume,
190 value) == 0)
191 variax->volume = value;
192
193 return count;
194}
195
196
197
198
199static ssize_t variax_get_model(struct device *dev,
200 struct device_attribute *attr, char *buf)
201{
202 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
203 return sprintf(buf, "%d\n", variax->model);
204}
205
206
207
208
209static ssize_t variax_set_model(struct device *dev,
210 struct device_attribute *attr,
211 const char *buf, size_t count)
212{
213 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
214 int value = simple_strtoul(buf, NULL, 10);
215
216 if (line6_send_program(&variax->line6, value) == 0)
217 variax->model = value;
218
219 return count;
220}
221
222
223
224
225static ssize_t variax_get_active(struct device *dev,
226 struct device_attribute *attr, char *buf)
227{
228 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
229 return sprintf(buf, "%d\n", variax->buffer_activate[VARIAX_OFFSET_ACTIVATE]);
230}
231
232
233
234
235static ssize_t variax_set_active(struct device *dev,
236 struct device_attribute *attr,
237 const char *buf, size_t count)
238{
239 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
240 int value = simple_strtoul(buf, NULL, 10) ? 1 : 0;
241 variax->buffer_activate[VARIAX_OFFSET_ACTIVATE] = value;
242 line6_send_raw_message_async(&variax->line6, variax->buffer_activate,
243 sizeof(variax_activate));
244 return count;
245}
246
247
248
249
250static ssize_t variax_get_tone(struct device *dev,
251 struct device_attribute *attr, char *buf)
252{
253 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
254 return sprintf(buf, "%d\n", variax->tone);
255}
256
257
258
259
260static ssize_t variax_set_tone(struct device *dev,
261 struct device_attribute *attr,
262 const char *buf, size_t count)
263{
264 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
265 int value = simple_strtoul(buf, NULL, 10);
266
267 if (line6_transmit_parameter(&variax->line6, VARIAXMIDI_tone,
268 value) == 0)
269 variax->tone = value;
270
271 return count;
272}
273
274static ssize_t get_string(char *buf, const char *data, int length)
275{
276 int i;
277 memcpy(buf, data, length);
278
279 for (i = length; i--;) {
280 char c = buf[i];
281
282 if ((c != 0) && (c != ' '))
283 break;
284 }
285
286 buf[i + 1] = '\n';
287 return i + 2;
288}
289
290
291
292
293static ssize_t variax_get_name(struct device *dev,
294 struct device_attribute *attr, char *buf)
295{
296 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
297 line6_wait_dump(&variax->dumpreq, 0);
298 return get_string(buf, variax->model_data.name,
299 sizeof(variax->model_data.name));
300}
301
302
303
304
305static ssize_t variax_get_bank(struct device *dev,
306 struct device_attribute *attr, char *buf)
307{
308 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
309 line6_wait_dump(&variax->dumpreq, 0);
310 return get_string(buf, variax->bank, sizeof(variax->bank));
311}
312
313
314
315
316static ssize_t variax_get_dump(struct device *dev,
317 struct device_attribute *attr, char *buf)
318{
319 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
320 int retval;
321 retval = line6_wait_dump(&variax->dumpreq, 0);
322 if (retval < 0)
323 return retval;
324 memcpy(buf, &variax->model_data.control,
325 sizeof(variax->model_data.control));
326 return sizeof(variax->model_data.control);
327}
328
329#if CREATE_RAW_FILE
330
331
332
333
334static ssize_t variax_set_raw2(struct device *dev,
335 struct device_attribute *attr,
336 const char *buf, size_t count)
337{
338 struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
339 int size;
340 int i;
341 char *sysex;
342
343 count -= count % 3;
344 size = count * 2;
345 sysex = variax_alloc_sysex_buffer(variax, VARIAX_SYSEX_PARAM, size);
346
347 if (!sysex)
348 return 0;
349
350 for (i = 0; i < count; i += 3) {
351 const unsigned char *p1 = buf + i;
352 char *p2 = sysex + SYSEX_DATA_OFS + i * 2;
353 p2[0] = p1[2] & 0x0f;
354 p2[1] = p1[2] >> 4;
355 p2[2] = p1[1] & 0x0f;
356 p2[3] = p1[1] >> 4;
357 p2[4] = p1[0] & 0x0f;
358 p2[5] = p1[0] >> 4;
359 }
360
361 line6_send_sysex_message(&variax->line6, sysex, size);
362 kfree(sysex);
363 return count;
364}
365
366#endif
367
368
369static DEVICE_ATTR(model, S_IWUGO | S_IRUGO, variax_get_model, variax_set_model);
370static DEVICE_ATTR(volume, S_IWUGO | S_IRUGO, variax_get_volume, variax_set_volume);
371static DEVICE_ATTR(tone, S_IWUGO | S_IRUGO, variax_get_tone, variax_set_tone);
372static DEVICE_ATTR(name, S_IRUGO, variax_get_name, line6_nop_write);
373static DEVICE_ATTR(bank, S_IRUGO, variax_get_bank, line6_nop_write);
374static DEVICE_ATTR(dump, S_IRUGO, variax_get_dump, line6_nop_write);
375static DEVICE_ATTR(active, S_IWUGO | S_IRUGO, variax_get_active, variax_set_active);
376
377#if CREATE_RAW_FILE
378static DEVICE_ATTR(raw, S_IWUGO, line6_nop_read, line6_set_raw);
379static DEVICE_ATTR(raw2, S_IWUGO, line6_nop_read, variax_set_raw2);
380#endif
381
382
383
384
385
386static void variax_destruct(struct usb_interface *interface)
387{
388 struct usb_line6_variax *variax = usb_get_intfdata(interface);
389 struct usb_line6 *line6;
390
391 if (variax == NULL)
392 return;
393 line6 = &variax->line6;
394 if (line6 == NULL)
395 return;
396 line6_cleanup_audio(line6);
397
398
399 line6_dumpreq_destructbuf(&variax->dumpreq, 2);
400 line6_dumpreq_destructbuf(&variax->dumpreq, 1);
401 line6_dumpreq_destruct(&variax->dumpreq);
402
403 kfree(variax->buffer_activate);
404 del_timer_sync(&variax->activate_timer);
405}
406
407
408
409
410static int variax_create_files2(struct device *dev)
411{
412 int err;
413 CHECK_RETURN(device_create_file(dev, &dev_attr_model));
414 CHECK_RETURN(device_create_file(dev, &dev_attr_volume));
415 CHECK_RETURN(device_create_file(dev, &dev_attr_tone));
416 CHECK_RETURN(device_create_file(dev, &dev_attr_name));
417 CHECK_RETURN(device_create_file(dev, &dev_attr_bank));
418 CHECK_RETURN(device_create_file(dev, &dev_attr_dump));
419 CHECK_RETURN(device_create_file(dev, &dev_attr_active));
420#if CREATE_RAW_FILE
421 CHECK_RETURN(device_create_file(dev, &dev_attr_raw));
422 CHECK_RETURN(device_create_file(dev, &dev_attr_raw2));
423#endif
424 return 0;
425}
426
427
428
429
430int variax_init(struct usb_interface *interface,
431 struct usb_line6_variax *variax)
432{
433 int err;
434
435 if ((interface == NULL) || (variax == NULL))
436 return -ENODEV;
437
438
439 err = line6_dumpreq_init(&variax->dumpreq, variax_request_model1,
440 sizeof(variax_request_model1));
441
442 if (err < 0) {
443 dev_err(&interface->dev, "Out of memory\n");
444 variax_destruct(interface);
445 return err;
446 }
447
448 err = line6_dumpreq_initbuf(&variax->dumpreq, variax_request_model2,
449 sizeof(variax_request_model2), 1);
450
451 if (err < 0) {
452 dev_err(&interface->dev, "Out of memory\n");
453 variax_destruct(interface);
454 return err;
455 }
456
457 err = line6_dumpreq_initbuf(&variax->dumpreq, variax_request_bank,
458 sizeof(variax_request_bank), 2);
459
460 if (err < 0) {
461 dev_err(&interface->dev, "Out of memory\n");
462 variax_destruct(interface);
463 return err;
464 }
465
466 variax->buffer_activate = kmalloc(sizeof(variax_activate), GFP_KERNEL);
467
468 if (variax->buffer_activate == NULL) {
469 dev_err(&interface->dev, "Out of memory\n");
470 variax_destruct(interface);
471 return -ENOMEM;
472 }
473
474 memcpy(variax->buffer_activate, variax_activate,
475 sizeof(variax_activate));
476 init_timer(&variax->activate_timer);
477
478
479 err = variax_create_files(0, 0, &interface->dev);
480 if (err < 0) {
481 variax_destruct(interface);
482 return err;
483 }
484
485 err = variax_create_files2(&interface->dev);
486 if (err < 0) {
487 variax_destruct(interface);
488 return err;
489 }
490
491
492 err = line6_init_audio(&variax->line6);
493 if (err < 0) {
494 variax_destruct(interface);
495 return err;
496 }
497
498
499 err = line6_init_midi(&variax->line6);
500 if (err < 0) {
501 variax_destruct(interface);
502 return err;
503 }
504
505
506 err = line6_register_audio(&variax->line6);
507 if (err < 0) {
508 variax_destruct(interface);
509 return err;
510 }
511
512 variax_activate_delayed(variax, VARIAX_ACTIVATE_DELAY);
513 line6_startup_delayed(&variax->dumpreq, VARIAX_STARTUP_DELAY,
514 variax_startup_timeout, variax);
515 return 0;
516}
517
518
519
520
521void variax_disconnect(struct usb_interface *interface)
522{
523 struct device *dev;
524
525 if (interface == NULL)
526 return;
527 dev = &interface->dev;
528
529 if (dev != NULL) {
530
531 variax_remove_files(0, 0, dev);
532 device_remove_file(dev, &dev_attr_model);
533 device_remove_file(dev, &dev_attr_volume);
534 device_remove_file(dev, &dev_attr_tone);
535 device_remove_file(dev, &dev_attr_name);
536 device_remove_file(dev, &dev_attr_bank);
537 device_remove_file(dev, &dev_attr_dump);
538 device_remove_file(dev, &dev_attr_active);
539#if CREATE_RAW_FILE
540 device_remove_file(dev, &dev_attr_raw);
541 device_remove_file(dev, &dev_attr_raw2);
542#endif
543 }
544
545 variax_destruct(interface);
546}
547
