?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
x86/xen: resume timer irqs early
[linux/fpc-iii.git] / drivers / staging / line6 / driver.c
blob471c10c116ec823d54587c5426d79881cfc0db46
1 /*
2 * Line6 Linux USB driver - 0.9.1beta
3 *
4 * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, version 2.
9 *
10 */
11
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/slab.h>
15 #include <linux/usb.h>
16
17 #include "audio.h"
18 #include "capture.h"
19 #include "driver.h"
20 #include "midi.h"
21 #include "playback.h"
22 #include "pod.h"
23 #include "podhd.h"
24 #include "revision.h"
25 #include "toneport.h"
26 #include "usbdefs.h"
27 #include "variax.h"
28
29 #define DRIVER_AUTHOR "Markus Grabner <grabner@icg.tugraz.at>"
30 #define DRIVER_DESC "Line6 USB Driver"
31 #define DRIVER_VERSION "0.9.1beta" DRIVER_REVISION
32
33 /* table of devices that work with this driver */
34 static const struct usb_device_id line6_id_table[] = {
35 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXT)},
36 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXTLIVE)},
37 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXTPRO)},
38 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_GUITARPORT)},
39 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_POCKETPOD)},
40 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODHD300)},
41 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODHD500)},
42 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODSTUDIO_GX)},
43 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODSTUDIO_UX1)},
44 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODSTUDIO_UX2)},
45 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODX3)},
46 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODX3LIVE)},
47 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXT)},
48 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXTLIVE)},
49 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXTPRO)},
50 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_GX)},
51 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_UX1)},
52 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_UX2)},
53 {USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_VARIAX)},
54 {},
55 };
56
57 MODULE_DEVICE_TABLE(usb, line6_id_table);
58
59 /* *INDENT-OFF* */
60 static struct line6_properties line6_properties_table[] = {
61 { LINE6_BIT_BASSPODXT, "BassPODxt", "BassPODxt", LINE6_BIT_CONTROL_PCM_HWMON },
62 { LINE6_BIT_BASSPODXTLIVE, "BassPODxtLive", "BassPODxt Live", LINE6_BIT_CONTROL_PCM_HWMON },
63 { LINE6_BIT_BASSPODXTPRO, "BassPODxtPro", "BassPODxt Pro", LINE6_BIT_CONTROL_PCM_HWMON },
64 { LINE6_BIT_GUITARPORT, "GuitarPort", "GuitarPort", LINE6_BIT_PCM },
65 { LINE6_BIT_POCKETPOD, "PocketPOD", "Pocket POD", LINE6_BIT_CONTROL },
66 { LINE6_BIT_PODHD300, "PODHD300", "POD HD300", LINE6_BIT_CONTROL_PCM_HWMON },
67 { LINE6_BIT_PODHD500, "PODHD500", "POD HD500", LINE6_BIT_CONTROL_PCM_HWMON },
68 { LINE6_BIT_PODSTUDIO_GX, "PODStudioGX", "POD Studio GX", LINE6_BIT_PCM },
69 { LINE6_BIT_PODSTUDIO_UX1, "PODStudioUX1", "POD Studio UX1", LINE6_BIT_PCM },
70 { LINE6_BIT_PODSTUDIO_UX2, "PODStudioUX2", "POD Studio UX2", LINE6_BIT_PCM },
71 { LINE6_BIT_PODX3, "PODX3", "POD X3", LINE6_BIT_PCM },
72 { LINE6_BIT_PODX3LIVE, "PODX3Live", "POD X3 Live", LINE6_BIT_PCM },
73 { LINE6_BIT_PODXT, "PODxt", "PODxt", LINE6_BIT_CONTROL_PCM_HWMON },
74 { LINE6_BIT_PODXTLIVE, "PODxtLive", "PODxt Live", LINE6_BIT_CONTROL_PCM_HWMON },
75 { LINE6_BIT_PODXTPRO, "PODxtPro", "PODxt Pro", LINE6_BIT_CONTROL_PCM_HWMON },
76 { LINE6_BIT_TONEPORT_GX, "TonePortGX", "TonePort GX", LINE6_BIT_PCM },
77 { LINE6_BIT_TONEPORT_UX1, "TonePortUX1", "TonePort UX1", LINE6_BIT_PCM },
78 { LINE6_BIT_TONEPORT_UX2, "TonePortUX2", "TonePort UX2", LINE6_BIT_PCM },
79 { LINE6_BIT_VARIAX, "Variax", "Variax Workbench", LINE6_BIT_CONTROL },
80 };
81 /* *INDENT-ON* */
82
83 /*
84 This is Line6's MIDI manufacturer ID.
85 */
86 const unsigned char line6_midi_id[] = {
87 0x00, 0x01, 0x0c
88 };
89
90 /*
91 Code to request version of POD, Variax interface
92 (and maybe other devices).
93 */
94 static const char line6_request_version[] = {
95 0xf0, 0x7e, 0x7f, 0x06, 0x01, 0xf7
96 };
97
98 /**
99 Class for asynchronous messages.
100 */
101 struct message {
102 struct usb_line6 *line6;
103 const char *buffer;
104 int size;
105 int done;
106 };
107
108 /*
109 Forward declarations.
110 */
111 static void line6_data_received(struct urb *urb);
112 static int line6_send_raw_message_async_part(struct message *msg,
113 struct urb *urb);
114
115 /*
116 Start to listen on endpoint.
117 */
118 static int line6_start_listen(struct usb_line6 *line6)
119 {
120 int err;
121 usb_fill_int_urb(line6->urb_listen, line6->usbdev,
122 usb_rcvintpipe(line6->usbdev, line6->ep_control_read),
123 line6->buffer_listen, LINE6_BUFSIZE_LISTEN,
124 line6_data_received, line6, line6->interval);
125 line6->urb_listen->actual_length = 0;
126 err = usb_submit_urb(line6->urb_listen, GFP_ATOMIC);
127 return err;
128 }
129
130 /*
131 Stop listening on endpoint.
132 */
133 static void line6_stop_listen(struct usb_line6 *line6)
134 {
135 usb_kill_urb(line6->urb_listen);
136 }
137
138 /*
139 Send raw message in pieces of wMaxPacketSize bytes.
140 */
141 int line6_send_raw_message(struct usb_line6 *line6, const char *buffer,
142 int size)
143 {
144 int i, done = 0;
145
146 for (i = 0; i < size; i += line6->max_packet_size) {
147 int partial;
148 const char *frag_buf = buffer + i;
149 int frag_size = min(line6->max_packet_size, size - i);
150 int retval;
151
152 retval = usb_interrupt_msg(line6->usbdev,
153 usb_sndintpipe(line6->usbdev,
154 line6->ep_control_write),
155 (char *)frag_buf, frag_size,
156 &partial, LINE6_TIMEOUT * HZ);
157
158 if (retval) {
159 dev_err(line6->ifcdev,
160 "usb_interrupt_msg failed (%d)\n", retval);
161 break;
162 }
163
164 done += frag_size;
165 }
166
167 return done;
168 }
169
170 /*
171 Notification of completion of asynchronous request transmission.
172 */
173 static void line6_async_request_sent(struct urb *urb)
174 {
175 struct message *msg = (struct message *)urb->context;
176
177 if (msg->done >= msg->size) {
178 usb_free_urb(urb);
179 kfree(msg);
180 } else
181 line6_send_raw_message_async_part(msg, urb);
182 }
183
184 /*
185 Asynchronously send part of a raw message.
186 */
187 static int line6_send_raw_message_async_part(struct message *msg,
188 struct urb *urb)
189 {
190 int retval;
191 struct usb_line6 *line6 = msg->line6;
192 int done = msg->done;
193 int bytes = min(msg->size - done, line6->max_packet_size);
194
195 usb_fill_int_urb(urb, line6->usbdev,
196 usb_sndintpipe(line6->usbdev, line6->ep_control_write),
197 (char *)msg->buffer + done, bytes,
198 line6_async_request_sent, msg, line6->interval);
199
200 msg->done += bytes;
201 retval = usb_submit_urb(urb, GFP_ATOMIC);
202
203 if (retval < 0) {
204 dev_err(line6->ifcdev, "%s: usb_submit_urb failed (%d)\n",
205 __func__, retval);
206 usb_free_urb(urb);
207 kfree(msg);
208 return -EINVAL;
209 }
210
211 return 0;
212 }
213
214 /*
215 Setup and start timer.
216 */
217 void line6_start_timer(struct timer_list *timer, unsigned int msecs,
218 void (*function) (unsigned long), unsigned long data)
219 {
220 setup_timer(timer, function, data);
221 timer->expires = jiffies + msecs * HZ / 1000;
222 add_timer(timer);
223 }
224
225 /*
226 Asynchronously send raw message.
227 */
228 int line6_send_raw_message_async(struct usb_line6 *line6, const char *buffer,
229 int size)
230 {
231 struct message *msg;
232 struct urb *urb;
233
234 /* create message: */
235 msg = kmalloc(sizeof(struct message), GFP_ATOMIC);
236 if (msg == NULL)
237 return -ENOMEM;
238
239 /* create URB: */
240 urb = usb_alloc_urb(0, GFP_ATOMIC);
241
242 if (urb == NULL) {
243 kfree(msg);
244 dev_err(line6->ifcdev, "Out of memory\n");
245 return -ENOMEM;
246 }
247
248 /* set message data: */
249 msg->line6 = line6;
250 msg->buffer = buffer;
251 msg->size = size;
252 msg->done = 0;
253
254 /* start sending: */
255 return line6_send_raw_message_async_part(msg, urb);
256 }
257
258 /*
259 Send asynchronous device version request.
260 */
261 int line6_version_request_async(struct usb_line6 *line6)
262 {
263 char *buffer;
264 int retval;
265
266 buffer = kmemdup(line6_request_version,
267 sizeof(line6_request_version), GFP_ATOMIC);
268 if (buffer == NULL) {
269 dev_err(line6->ifcdev, "Out of memory");
270 return -ENOMEM;
271 }
272
273 retval = line6_send_raw_message_async(line6, buffer,
274 sizeof(line6_request_version));
275 kfree(buffer);
276 return retval;
277 }
278
279 /*
280 Send sysex message in pieces of wMaxPacketSize bytes.
281 */
282 int line6_send_sysex_message(struct usb_line6 *line6, const char *buffer,
283 int size)
284 {
285 return line6_send_raw_message(line6, buffer,
286 size + SYSEX_EXTRA_SIZE) -
287 SYSEX_EXTRA_SIZE;
288 }
289
290 /*
291 Allocate buffer for sysex message and prepare header.
292 @param code sysex message code
293 @param size number of bytes between code and sysex end
294 */
295 char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1, int code2,
296 int size)
297 {
298 char *buffer = kmalloc(size + SYSEX_EXTRA_SIZE, GFP_ATOMIC);
299
300 if (!buffer)
301 return NULL;
302
303 buffer[0] = LINE6_SYSEX_BEGIN;
304 memcpy(buffer + 1, line6_midi_id, sizeof(line6_midi_id));
305 buffer[sizeof(line6_midi_id) + 1] = code1;
306 buffer[sizeof(line6_midi_id) + 2] = code2;
307 buffer[sizeof(line6_midi_id) + 3 + size] = LINE6_SYSEX_END;
308 return buffer;
309 }
310
311 /*
312 Notification of data received from the Line6 device.
313 */
314 static void line6_data_received(struct urb *urb)
315 {
316 struct usb_line6 *line6 = (struct usb_line6 *)urb->context;
317 struct midi_buffer *mb = &line6->line6midi->midibuf_in;
318 int done;
319
320 if (urb->status == -ESHUTDOWN)
321 return;
322
323 done =
324 line6_midibuf_write(mb, urb->transfer_buffer, urb->actual_length);
325
326 if (done < urb->actual_length) {
327 line6_midibuf_ignore(mb, done);
328 dev_dbg(line6->ifcdev, "%d %d buffer overflow - message skipped\n",
329 done, urb->actual_length);
330 }
331
332 for (;;) {
333 done =
334 line6_midibuf_read(mb, line6->buffer_message,
335 LINE6_MESSAGE_MAXLEN);
336
337 if (done == 0)
338 break;
339
340 line6->message_length = done;
341 line6_midi_receive(line6, line6->buffer_message, done);
342
343 switch (line6->usbdev->descriptor.idProduct) {
344 case LINE6_DEVID_BASSPODXT:
345 case LINE6_DEVID_BASSPODXTLIVE:
346 case LINE6_DEVID_BASSPODXTPRO:
347 case LINE6_DEVID_PODXT:
348 case LINE6_DEVID_PODXTPRO:
349 case LINE6_DEVID_POCKETPOD:
350 line6_pod_process_message((struct usb_line6_pod *)
351 line6);
352 break;
353
354 case LINE6_DEVID_PODHD300:
355 case LINE6_DEVID_PODHD500:
356 break; /* let userspace handle MIDI */
357
358 case LINE6_DEVID_PODXTLIVE:
359 switch (line6->interface_number) {
360 case PODXTLIVE_INTERFACE_POD:
361 line6_pod_process_message((struct usb_line6_pod
362 *)line6);
363 break;
364
365 case PODXTLIVE_INTERFACE_VARIAX:
366 line6_variax_process_message((struct
367 usb_line6_variax
368 *)line6);
369 break;
370
371 default:
372 dev_err(line6->ifcdev,
373 "PODxt Live interface %d not supported\n",
374 line6->interface_number);
375 }
376 break;
377
378 case LINE6_DEVID_VARIAX:
379 line6_variax_process_message((struct usb_line6_variax *)
380 line6);
381 break;
382
383 default:
384 MISSING_CASE;
385 }
386 }
387
388 line6_start_listen(line6);
389 }
390
391 /*
392 Send channel number (i.e., switch to a different sound).
393 */
394 int line6_send_program(struct usb_line6 *line6, u8 value)
395 {
396 int retval;
397 unsigned char *buffer;
398 int partial;
399
400 buffer = kmalloc(2, GFP_KERNEL);
401 if (!buffer)
402 return -ENOMEM;
403
404 buffer[0] = LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_HOST;
405 buffer[1] = value;
406
407 retval = usb_interrupt_msg(line6->usbdev,
408 usb_sndintpipe(line6->usbdev,
409 line6->ep_control_write),
410 buffer, 2, &partial, LINE6_TIMEOUT * HZ);
411
412 if (retval)
413 dev_err(line6->ifcdev, "usb_interrupt_msg failed (%d)\n",
414 retval);
415
416 kfree(buffer);
417 return retval;
418 }
419
420 /*
421 Transmit Line6 control parameter.
422 */
423 int line6_transmit_parameter(struct usb_line6 *line6, int param, u8 value)
424 {
425 int retval;
426 unsigned char *buffer;
427 int partial;
428
429 buffer = kmalloc(3, GFP_KERNEL);
430 if (!buffer)
431 return -ENOMEM;
432
433 buffer[0] = LINE6_PARAM_CHANGE | LINE6_CHANNEL_HOST;
434 buffer[1] = param;
435 buffer[2] = value;
436
437 retval = usb_interrupt_msg(line6->usbdev,
438 usb_sndintpipe(line6->usbdev,
439 line6->ep_control_write),
440 buffer, 3, &partial, LINE6_TIMEOUT * HZ);
441
442 if (retval)
443 dev_err(line6->ifcdev, "usb_interrupt_msg failed (%d)\n",
444 retval);
445
446 kfree(buffer);
447 return retval;
448 }
449
450 /*
451 Read data from device.
452 */
453 int line6_read_data(struct usb_line6 *line6, int address, void *data,
454 size_t datalen)
455 {
456 struct usb_device *usbdev = line6->usbdev;
457 int ret;
458 unsigned char len;
459
460 /* query the serial number: */
461 ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
462 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
463 (datalen << 8) | 0x21, address,
464 NULL, 0, LINE6_TIMEOUT * HZ);
465
466 if (ret < 0) {
467 dev_err(line6->ifcdev, "read request failed (error %d)\n", ret);
468 return ret;
469 }
470
471 /* Wait for data length. We'll get 0xff until length arrives. */
472 do {
473 ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
474 USB_TYPE_VENDOR | USB_RECIP_DEVICE |
475 USB_DIR_IN,
476 0x0012, 0x0000, &len, 1,
477 LINE6_TIMEOUT * HZ);
478 if (ret < 0) {
479 dev_err(line6->ifcdev,
480 "receive length failed (error %d)\n", ret);
481 return ret;
482 }
483 } while (len == 0xff);
484
485 if (len != datalen) {
486 /* should be equal or something went wrong */
487 dev_err(line6->ifcdev,
488 "length mismatch (expected %d, got %d)\n",
489 (int)datalen, (int)len);
490 return -EINVAL;
491 }
492
493 /* receive the result: */
494 ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
495 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
496 0x0013, 0x0000, data, datalen,
497 LINE6_TIMEOUT * HZ);
498
499 if (ret < 0) {
500 dev_err(line6->ifcdev, "read failed (error %d)\n", ret);
501 return ret;
502 }
503
504 return 0;
505 }
506
507 /*
508 Write data to device.
509 */
510 int line6_write_data(struct usb_line6 *line6, int address, void *data,
511 size_t datalen)
512 {
513 struct usb_device *usbdev = line6->usbdev;
514 int ret;
515 unsigned char status;
516
517 ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
518 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
519 0x0022, address, data, datalen,
520 LINE6_TIMEOUT * HZ);
521
522 if (ret < 0) {
523 dev_err(line6->ifcdev,
524 "write request failed (error %d)\n", ret);
525 return ret;
526 }
527
528 do {
529 ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
530 0x67,
531 USB_TYPE_VENDOR | USB_RECIP_DEVICE |
532 USB_DIR_IN,
533 0x0012, 0x0000,
534 &status, 1, LINE6_TIMEOUT * HZ);
535
536 if (ret < 0) {
537 dev_err(line6->ifcdev,
538 "receiving status failed (error %d)\n", ret);
539 return ret;
540 }
541 } while (status == 0xff);
542
543 if (status != 0) {
544 dev_err(line6->ifcdev, "write failed (error %d)\n", ret);
545 return -EINVAL;
546 }
547
548 return 0;
549 }
550
551 /*
552 Read Line6 device serial number.
553 (POD, TonePort, GuitarPort)
554 */
555 int line6_read_serial_number(struct usb_line6 *line6, int *serial_number)
556 {
557 return line6_read_data(line6, 0x80d0, serial_number,
558 sizeof(*serial_number));
559 }
560
561 /*
562 No operation (i.e., unsupported).
563 */
564 ssize_t line6_nop_read(struct device *dev, struct device_attribute *attr,
565 char *buf)
566 {
567 return 0;
568 }
569
570 /*
571 Generic destructor.
572 */
573 static void line6_destruct(struct usb_interface *interface)
574 {
575 struct usb_line6 *line6;
576
577 if (interface == NULL)
578 return;
579 line6 = usb_get_intfdata(interface);
580 if (line6 == NULL)
581 return;
582
583 /* free buffer memory first: */
584 kfree(line6->buffer_message);
585 kfree(line6->buffer_listen);
586
587 /* then free URBs: */
588 usb_free_urb(line6->urb_listen);
589
590 /* make sure the device isn't destructed twice: */
591 usb_set_intfdata(interface, NULL);
592
593 /* free interface data: */
594 kfree(line6);
595 }
596
597 /*
598 Probe USB device.
599 */
600 static int line6_probe(struct usb_interface *interface,
601 const struct usb_device_id *id)
602 {
603 int devtype;
604 struct usb_device *usbdev;
605 struct usb_line6 *line6;
606 const struct line6_properties *properties;
607 int interface_number, alternate = 0;
608 int product;
609 int size = 0;
610 int ep_read = 0, ep_write = 0;
611 int ret;
612
613 if (interface == NULL)
614 return -ENODEV;
615 usbdev = interface_to_usbdev(interface);
616 if (usbdev == NULL)
617 return -ENODEV;
618
619 /* we don't handle multiple configurations */
620 if (usbdev->descriptor.bNumConfigurations != 1) {
621 ret = -ENODEV;
622 goto err_put;
623 }
624
625 /* check vendor and product id */
626 for (devtype = ARRAY_SIZE(line6_id_table) - 1; devtype--;) {
627 u16 idVendor = le16_to_cpu(usbdev->descriptor.idVendor);
628 u16 idProduct = le16_to_cpu(usbdev->descriptor.idProduct);
629
630 if (idVendor == line6_id_table[devtype].idVendor &&
631 idProduct == line6_id_table[devtype].idProduct)
632 break;
633 }
634
635 if (devtype < 0) {
636 ret = -ENODEV;
637 goto err_put;
638 }
639
640 /* initialize device info: */
641 properties = &line6_properties_table[devtype];
642 dev_info(&interface->dev, "Line6 %s found\n", properties->name);
643 product = le16_to_cpu(usbdev->descriptor.idProduct);
644
645 /* query interface number */
646 interface_number = interface->cur_altsetting->desc.bInterfaceNumber;
647
648 switch (product) {
649 case LINE6_DEVID_BASSPODXTLIVE:
650 case LINE6_DEVID_PODXTLIVE:
651 case LINE6_DEVID_VARIAX:
652 alternate = 1;
653 break;
654
655 case LINE6_DEVID_POCKETPOD:
656 switch (interface_number) {
657 case 0:
658 return 0; /* this interface has no endpoints */
659 case 1:
660 alternate = 0;
661 break;
662 default:
663 MISSING_CASE;
664 }
665 break;
666
667 case LINE6_DEVID_PODHD500:
668 case LINE6_DEVID_PODX3:
669 case LINE6_DEVID_PODX3LIVE:
670 switch (interface_number) {
671 case 0:
672 alternate = 1;
673 break;
674 case 1:
675 alternate = 0;
676 break;
677 default:
678 MISSING_CASE;
679 }
680 break;
681
682 case LINE6_DEVID_BASSPODXT:
683 case LINE6_DEVID_BASSPODXTPRO:
684 case LINE6_DEVID_PODXT:
685 case LINE6_DEVID_PODXTPRO:
686 case LINE6_DEVID_PODHD300:
687 alternate = 5;
688 break;
689
690 case LINE6_DEVID_GUITARPORT:
691 case LINE6_DEVID_PODSTUDIO_GX:
692 case LINE6_DEVID_PODSTUDIO_UX1:
693 case LINE6_DEVID_TONEPORT_GX:
694 case LINE6_DEVID_TONEPORT_UX1:
695 alternate = 2; /* 1..4 seem to be ok */
696 break;
697
698 case LINE6_DEVID_TONEPORT_UX2:
699 case LINE6_DEVID_PODSTUDIO_UX2:
700 switch (interface_number) {
701 case 0:
702 /* defaults to 44.1kHz, 16-bit */
703 alternate = 2;
704 break;
705 case 1:
706 /* don't know yet what this is ...
707 alternate = 1;
708 break;
709 */
710 return -ENODEV;
711 default:
712 MISSING_CASE;
713 }
714 break;
715
716 default:
717 MISSING_CASE;
718 ret = -ENODEV;
719 goto err_put;
720 }
721
722 ret = usb_set_interface(usbdev, interface_number, alternate);
723 if (ret < 0) {
724 dev_err(&interface->dev, "set_interface failed\n");
725 goto err_put;
726 }
727
728 /* initialize device data based on product id: */
729 switch (product) {
730 case LINE6_DEVID_BASSPODXT:
731 case LINE6_DEVID_BASSPODXTLIVE:
732 case LINE6_DEVID_BASSPODXTPRO:
733 case LINE6_DEVID_PODXT:
734 case LINE6_DEVID_PODXTPRO:
735 size = sizeof(struct usb_line6_pod);
736 ep_read = 0x84;
737 ep_write = 0x03;
738 break;
739
740 case LINE6_DEVID_PODHD300:
741 size = sizeof(struct usb_line6_podhd);
742 ep_read = 0x84;
743 ep_write = 0x03;
744 break;
745
746 case LINE6_DEVID_PODHD500:
747 size = sizeof(struct usb_line6_podhd);
748 ep_read = 0x81;
749 ep_write = 0x01;
750 break;
751
752 case LINE6_DEVID_POCKETPOD:
753 size = sizeof(struct usb_line6_pod);
754 ep_read = 0x82;
755 ep_write = 0x02;
756 break;
757
758 case LINE6_DEVID_PODX3:
759 case LINE6_DEVID_PODX3LIVE:
760 /* currently unused! */
761 size = sizeof(struct usb_line6_pod);
762 ep_read = 0x81;
763 ep_write = 0x01;
764 break;
765
766 case LINE6_DEVID_PODSTUDIO_GX:
767 case LINE6_DEVID_PODSTUDIO_UX1:
768 case LINE6_DEVID_PODSTUDIO_UX2:
769 case LINE6_DEVID_TONEPORT_GX:
770 case LINE6_DEVID_TONEPORT_UX1:
771 case LINE6_DEVID_TONEPORT_UX2:
772 case LINE6_DEVID_GUITARPORT:
773 size = sizeof(struct usb_line6_toneport);
774 /* these don't have a control channel */
775 break;
776
777 case LINE6_DEVID_PODXTLIVE:
778 switch (interface_number) {
779 case PODXTLIVE_INTERFACE_POD:
780 size = sizeof(struct usb_line6_pod);
781 ep_read = 0x84;
782 ep_write = 0x03;
783 break;
784
785 case PODXTLIVE_INTERFACE_VARIAX:
786 size = sizeof(struct usb_line6_variax);
787 ep_read = 0x86;
788 ep_write = 0x05;
789 break;
790
791 default:
792 ret = -ENODEV;
793 goto err_put;
794 }
795 break;
796
797 case LINE6_DEVID_VARIAX:
798 size = sizeof(struct usb_line6_variax);
799 ep_read = 0x82;
800 ep_write = 0x01;
801 break;
802
803 default:
804 MISSING_CASE;
805 ret = -ENODEV;
806 goto err_put;
807 }
808
809 if (size == 0) {
810 dev_err(&interface->dev,
811 "driver bug: interface data size not set\n");
812 ret = -ENODEV;
813 goto err_put;
814 }
815
816 line6 = kzalloc(size, GFP_KERNEL);
817 if (line6 == NULL) {
818 ret = -ENODEV;
819 goto err_put;
820 }
821
822 /* store basic data: */
823 line6->interface_number = interface_number;
824 line6->properties = properties;
825 line6->usbdev = usbdev;
826 line6->ifcdev = &interface->dev;
827 line6->ep_control_read = ep_read;
828 line6->ep_control_write = ep_write;
829 line6->product = product;
830
831 /* get data from endpoint descriptor (see usb_maxpacket): */
832 {
833 struct usb_host_endpoint *ep;
834 unsigned epnum =
835 usb_pipeendpoint(usb_rcvintpipe(usbdev, ep_read));
836 ep = usbdev->ep_in[epnum];
837
838 if (ep != NULL) {
839 line6->interval = ep->desc.bInterval;
840 line6->max_packet_size =
841 le16_to_cpu(ep->desc.wMaxPacketSize);
842 } else {
843 line6->interval = LINE6_FALLBACK_INTERVAL;
844 line6->max_packet_size = LINE6_FALLBACK_MAXPACKETSIZE;
845 dev_err(line6->ifcdev,
846 "endpoint not available, using fallback values");
847 }
848 }
849
850 usb_set_intfdata(interface, line6);
851
852 if (properties->capabilities & LINE6_BIT_CONTROL) {
853 /* initialize USB buffers: */
854 line6->buffer_listen =
855 kmalloc(LINE6_BUFSIZE_LISTEN, GFP_KERNEL);
856 if (line6->buffer_listen == NULL) {
857 ret = -ENOMEM;
858 goto err_destruct;
859 }
860
861 line6->buffer_message =
862 kmalloc(LINE6_MESSAGE_MAXLEN, GFP_KERNEL);
863 if (line6->buffer_message == NULL) {
864 ret = -ENOMEM;
865 goto err_destruct;
866 }
867
868 line6->urb_listen = usb_alloc_urb(0, GFP_KERNEL);
869
870 if (line6->urb_listen == NULL) {
871 dev_err(&interface->dev, "Out of memory\n");
872 line6_destruct(interface);
873 ret = -ENOMEM;
874 goto err_destruct;
875 }
876
877 ret = line6_start_listen(line6);
878 if (ret < 0) {
879 dev_err(&interface->dev, "%s: usb_submit_urb failed\n",
880 __func__);
881 goto err_destruct;
882 }
883 }
884
885 /* initialize device data based on product id: */
886 switch (product) {
887 case LINE6_DEVID_BASSPODXT:
888 case LINE6_DEVID_BASSPODXTLIVE:
889 case LINE6_DEVID_BASSPODXTPRO:
890 case LINE6_DEVID_POCKETPOD:
891 case LINE6_DEVID_PODX3:
892 case LINE6_DEVID_PODX3LIVE:
893 case LINE6_DEVID_PODXT:
894 case LINE6_DEVID_PODXTPRO:
895 ret = line6_pod_init(interface, (struct usb_line6_pod *)line6);
896 break;
897
898 case LINE6_DEVID_PODHD300:
899 case LINE6_DEVID_PODHD500:
900 ret = line6_podhd_init(interface,
901 (struct usb_line6_podhd *)line6);
902 break;
903
904 case LINE6_DEVID_PODXTLIVE:
905 switch (interface_number) {
906 case PODXTLIVE_INTERFACE_POD:
907 ret =
908 line6_pod_init(interface,
909 (struct usb_line6_pod *)line6);
910 break;
911
912 case PODXTLIVE_INTERFACE_VARIAX:
913 ret =
914 line6_variax_init(interface,
915 (struct usb_line6_variax *)line6);
916 break;
917
918 default:
919 dev_err(&interface->dev,
920 "PODxt Live interface %d not supported\n",
921 interface_number);
922 ret = -ENODEV;
923 }
924
925 break;
926
927 case LINE6_DEVID_VARIAX:
928 ret =
929 line6_variax_init(interface,
930 (struct usb_line6_variax *)line6);
931 break;
932
933 case LINE6_DEVID_PODSTUDIO_GX:
934 case LINE6_DEVID_PODSTUDIO_UX1:
935 case LINE6_DEVID_PODSTUDIO_UX2:
936 case LINE6_DEVID_TONEPORT_GX:
937 case LINE6_DEVID_TONEPORT_UX1:
938 case LINE6_DEVID_TONEPORT_UX2:
939 case LINE6_DEVID_GUITARPORT:
940 ret =
941 line6_toneport_init(interface,
942 (struct usb_line6_toneport *)line6);
943 break;
944
945 default:
946 MISSING_CASE;
947 ret = -ENODEV;
948 }
949
950 if (ret < 0)
951 goto err_destruct;
952
953 ret = sysfs_create_link(&interface->dev.kobj, &usbdev->dev.kobj,
954 "usb_device");
955 if (ret < 0)
956 goto err_destruct;
957
958 /* creation of additional special files should go here */
959
960 dev_info(&interface->dev, "Line6 %s now attached\n",
961 line6->properties->name);
962
963 switch (product) {
964 case LINE6_DEVID_PODX3:
965 case LINE6_DEVID_PODX3LIVE:
966 dev_info(&interface->dev,
967 "NOTE: the Line6 %s is detected, but not yet supported\n",
968 line6->properties->name);
969 }
970
971 /* increment reference counters: */
972 usb_get_intf(interface);
973 usb_get_dev(usbdev);
974
975 return 0;
976
977 err_destruct:
978 line6_destruct(interface);
979 err_put:
980 return ret;
981 }
982
983 /*
984 Line6 device disconnected.
985 */
986 static void line6_disconnect(struct usb_interface *interface)
987 {
988 struct usb_line6 *line6;
989 struct usb_device *usbdev;
990 int interface_number;
991
992 if (interface == NULL)
993 return;
994 usbdev = interface_to_usbdev(interface);
995 if (usbdev == NULL)
996 return;
997
998 /* removal of additional special files should go here */
999
1000 sysfs_remove_link(&interface->dev.kobj, "usb_device");
1001
1002 interface_number = interface->cur_altsetting->desc.bInterfaceNumber;
1003 line6 = usb_get_intfdata(interface);
1004
1005 if (line6 != NULL) {
1006 if (line6->urb_listen != NULL)
1007 line6_stop_listen(line6);
1008
1009 if (usbdev != line6->usbdev)
1010 dev_err(line6->ifcdev,
1011 "driver bug: inconsistent usb device\n");
1012
1013 switch (line6->usbdev->descriptor.idProduct) {
1014 case LINE6_DEVID_BASSPODXT:
1015 case LINE6_DEVID_BASSPODXTLIVE:
1016 case LINE6_DEVID_BASSPODXTPRO:
1017 case LINE6_DEVID_POCKETPOD:
1018 case LINE6_DEVID_PODX3:
1019 case LINE6_DEVID_PODX3LIVE:
1020 case LINE6_DEVID_PODXT:
1021 case LINE6_DEVID_PODXTPRO:
1022 line6_pod_disconnect(interface);
1023 break;
1024
1025 case LINE6_DEVID_PODHD300:
1026 case LINE6_DEVID_PODHD500:
1027 line6_podhd_disconnect(interface);
1028 break;
1029
1030 case LINE6_DEVID_PODXTLIVE:
1031 switch (interface_number) {
1032 case PODXTLIVE_INTERFACE_POD:
1033 line6_pod_disconnect(interface);
1034 break;
1035
1036 case PODXTLIVE_INTERFACE_VARIAX:
1037 line6_variax_disconnect(interface);
1038 break;
1039 }
1040
1041 break;
1042
1043 case LINE6_DEVID_VARIAX:
1044 line6_variax_disconnect(interface);
1045 break;
1046
1047 case LINE6_DEVID_PODSTUDIO_GX:
1048 case LINE6_DEVID_PODSTUDIO_UX1:
1049 case LINE6_DEVID_PODSTUDIO_UX2:
1050 case LINE6_DEVID_TONEPORT_GX:
1051 case LINE6_DEVID_TONEPORT_UX1:
1052 case LINE6_DEVID_TONEPORT_UX2:
1053 case LINE6_DEVID_GUITARPORT:
1054 line6_toneport_disconnect(interface);
1055 break;
1056
1057 default:
1058 MISSING_CASE;
1059 }
1060
1061 dev_info(&interface->dev, "Line6 %s now disconnected\n",
1062 line6->properties->name);
1063 }
1064
1065 line6_destruct(interface);
1066
1067 /* decrement reference counters: */
1068 usb_put_intf(interface);
1069 usb_put_dev(usbdev);
1070 }
1071
1072 #ifdef CONFIG_PM
1073
1074 /*
1075 Suspend Line6 device.
1076 */
1077 static int line6_suspend(struct usb_interface *interface, pm_message_t message)
1078 {
1079 struct usb_line6 *line6 = usb_get_intfdata(interface);
1080 struct snd_line6_pcm *line6pcm = line6->line6pcm;
1081
1082 snd_power_change_state(line6->card, SNDRV_CTL_POWER_D3hot);
1083
1084 if (line6->properties->capabilities & LINE6_BIT_CONTROL)
1085 line6_stop_listen(line6);
1086
1087 if (line6pcm != NULL) {
1088 snd_pcm_suspend_all(line6pcm->pcm);
1089 line6_pcm_disconnect(line6pcm);
1090 line6pcm->flags = 0;
1091 }
1092
1093 return 0;
1094 }
1095
1096 /*
1097 Resume Line6 device.
1098 */
1099 static int line6_resume(struct usb_interface *interface)
1100 {
1101 struct usb_line6 *line6 = usb_get_intfdata(interface);
1102
1103 if (line6->properties->capabilities & LINE6_BIT_CONTROL)
1104 line6_start_listen(line6);
1105
1106 snd_power_change_state(line6->card, SNDRV_CTL_POWER_D0);
1107 return 0;
1108 }
1109
1110 /*
1111 Resume Line6 device after reset.
1112 */
1113 static int line6_reset_resume(struct usb_interface *interface)
1114 {
1115 struct usb_line6 *line6 = usb_get_intfdata(interface);
1116
1117 switch (line6->usbdev->descriptor.idProduct) {
1118 case LINE6_DEVID_PODSTUDIO_GX:
1119 case LINE6_DEVID_PODSTUDIO_UX1:
1120 case LINE6_DEVID_PODSTUDIO_UX2:
1121 case LINE6_DEVID_TONEPORT_GX:
1122 case LINE6_DEVID_TONEPORT_UX1:
1123 case LINE6_DEVID_TONEPORT_UX2:
1124 case LINE6_DEVID_GUITARPORT:
1125 line6_toneport_reset_resume((struct usb_line6_toneport *)line6);
1126 }
1127
1128 return line6_resume(interface);
1129 }
1130
1131 #endif /* CONFIG_PM */
1132
1133 static struct usb_driver line6_driver = {
1134 .name = DRIVER_NAME,
1135 .probe = line6_probe,
1136 .disconnect = line6_disconnect,
1137 #ifdef CONFIG_PM
1138 .suspend = line6_suspend,
1139 .resume = line6_resume,
1140 .reset_resume = line6_reset_resume,
1141 #endif
1142 .id_table = line6_id_table,
1143 };
1144
1145 module_usb_driver(line6_driver);
1146
1147 MODULE_AUTHOR(DRIVER_AUTHOR);
1148 MODULE_DESCRIPTION(DRIVER_DESC);
1149 MODULE_LICENSE("GPL");
1150 MODULE_VERSION(DRIVER_VERSION);
Linux with added FPC-III support