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staging: usbip: bugfix for isochronous packets and optimization
[zen-stable.git] / drivers / media / dvb / siano / smsusb.c
blob0b8da57cf4c340fcd0336e5a65ee40f0b47fb8f4
1 /****************************************************************
2
3 Siano Mobile Silicon, Inc.
4 MDTV receiver kernel modules.
5 Copyright (C) 2005-2009, Uri Shkolnik, Anatoly Greenblat
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, see <http://www.gnu.org/licenses/>.
19
20 ****************************************************************/
21
22 #include <linux/kernel.h>
23 #include <linux/init.h>
24 #include <linux/usb.h>
25 #include <linux/firmware.h>
26 #include <linux/slab.h>
27
28 #include "smscoreapi.h"
29 #include "sms-cards.h"
30 #include "smsendian.h"
31
32 static int sms_dbg;
33 module_param_named(debug, sms_dbg, int, 0644);
34 MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
35
36 #define USB1_BUFFER_SIZE 0x1000
37 #define USB2_BUFFER_SIZE 0x4000
38
39 #define MAX_BUFFERS 50
40 #define MAX_URBS 10
41
42 struct smsusb_device_t;
43
44 struct smsusb_urb_t {
45 struct smscore_buffer_t *cb;
46 struct smsusb_device_t *dev;
47
48 struct urb urb;
49 };
50
51 struct smsusb_device_t {
52 struct usb_device *udev;
53 struct smscore_device_t *coredev;
54
55 struct smsusb_urb_t surbs[MAX_URBS];
56
57 int response_alignment;
58 int buffer_size;
59 };
60
61 static int smsusb_submit_urb(struct smsusb_device_t *dev,
62 struct smsusb_urb_t *surb);
63
64 static void smsusb_onresponse(struct urb *urb)
65 {
66 struct smsusb_urb_t *surb = (struct smsusb_urb_t *) urb->context;
67 struct smsusb_device_t *dev = surb->dev;
68
69 if (urb->status == -ESHUTDOWN) {
70 sms_err("error, urb status %d (-ESHUTDOWN), %d bytes",
71 urb->status, urb->actual_length);
72 return;
73 }
74
75 if ((urb->actual_length > 0) && (urb->status == 0)) {
76 struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *)surb->cb->p;
77
78 smsendian_handle_message_header(phdr);
79 if (urb->actual_length >= phdr->msgLength) {
80 surb->cb->size = phdr->msgLength;
81
82 if (dev->response_alignment &&
83 (phdr->msgFlags & MSG_HDR_FLAG_SPLIT_MSG)) {
84
85 surb->cb->offset =
86 dev->response_alignment +
87 ((phdr->msgFlags >> 8) & 3);
88
89 /* sanity check */
90 if (((int) phdr->msgLength +
91 surb->cb->offset) > urb->actual_length) {
92 sms_err("invalid response "
93 "msglen %d offset %d "
94 "size %d",
95 phdr->msgLength,
96 surb->cb->offset,
97 urb->actual_length);
98 goto exit_and_resubmit;
99 }
100
101 /* move buffer pointer and
102 * copy header to its new location */
103 memcpy((char *) phdr + surb->cb->offset,
104 phdr, sizeof(struct SmsMsgHdr_ST));
105 } else
106 surb->cb->offset = 0;
107
108 smscore_onresponse(dev->coredev, surb->cb);
109 surb->cb = NULL;
110 } else {
111 sms_err("invalid response "
112 "msglen %d actual %d",
113 phdr->msgLength, urb->actual_length);
114 }
115 } else
116 sms_err("error, urb status %d, %d bytes",
117 urb->status, urb->actual_length);
118
119
120 exit_and_resubmit:
121 smsusb_submit_urb(dev, surb);
122 }
123
124 static int smsusb_submit_urb(struct smsusb_device_t *dev,
125 struct smsusb_urb_t *surb)
126 {
127 if (!surb->cb) {
128 surb->cb = smscore_getbuffer(dev->coredev);
129 if (!surb->cb) {
130 sms_err("smscore_getbuffer(...) returned NULL");
131 return -ENOMEM;
132 }
133 }
134
135 usb_fill_bulk_urb(
136 &surb->urb,
137 dev->udev,
138 usb_rcvbulkpipe(dev->udev, 0x81),
139 surb->cb->p,
140 dev->buffer_size,
141 smsusb_onresponse,
142 surb
143 );
144 surb->urb.transfer_dma = surb->cb->phys;
145 surb->urb.transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
146
147 return usb_submit_urb(&surb->urb, GFP_ATOMIC);
148 }
149
150 static void smsusb_stop_streaming(struct smsusb_device_t *dev)
151 {
152 int i;
153
154 for (i = 0; i < MAX_URBS; i++) {
155 usb_kill_urb(&dev->surbs[i].urb);
156
157 if (dev->surbs[i].cb) {
158 smscore_putbuffer(dev->coredev, dev->surbs[i].cb);
159 dev->surbs[i].cb = NULL;
160 }
161 }
162 }
163
164 static int smsusb_start_streaming(struct smsusb_device_t *dev)
165 {
166 int i, rc;
167
168 for (i = 0; i < MAX_URBS; i++) {
169 rc = smsusb_submit_urb(dev, &dev->surbs[i]);
170 if (rc < 0) {
171 sms_err("smsusb_submit_urb(...) failed");
172 smsusb_stop_streaming(dev);
173 break;
174 }
175 }
176
177 return rc;
178 }
179
180 static int smsusb_sendrequest(void *context, void *buffer, size_t size)
181 {
182 struct smsusb_device_t *dev = (struct smsusb_device_t *) context;
183 int dummy;
184
185 smsendian_handle_message_header((struct SmsMsgHdr_ST *)buffer);
186 return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
187 buffer, size, &dummy, 1000);
188 }
189
190 static char *smsusb1_fw_lkup[] = {
191 "dvbt_stellar_usb.inp",
192 "dvbh_stellar_usb.inp",
193 "tdmb_stellar_usb.inp",
194 "none",
195 "dvbt_bda_stellar_usb.inp",
196 };
197
198 static inline char *sms_get_fw_name(int mode, int board_id)
199 {
200 char **fw = sms_get_board(board_id)->fw;
201 return (fw && fw[mode]) ? fw[mode] : smsusb1_fw_lkup[mode];
202 }
203
204 static int smsusb1_load_firmware(struct usb_device *udev, int id, int board_id)
205 {
206 const struct firmware *fw;
207 u8 *fw_buffer;
208 int rc, dummy;
209 char *fw_filename;
210
211 if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA) {
212 sms_err("invalid firmware id specified %d", id);
213 return -EINVAL;
214 }
215
216 fw_filename = sms_get_fw_name(id, board_id);
217
218 rc = request_firmware(&fw, fw_filename, &udev->dev);
219 if (rc < 0) {
220 sms_warn("failed to open \"%s\" mode %d, "
221 "trying again with default firmware", fw_filename, id);
222
223 fw_filename = smsusb1_fw_lkup[id];
224 rc = request_firmware(&fw, fw_filename, &udev->dev);
225 if (rc < 0) {
226 sms_warn("failed to open \"%s\" mode %d",
227 fw_filename, id);
228
229 return rc;
230 }
231 }
232
233 fw_buffer = kmalloc(fw->size, GFP_KERNEL);
234 if (fw_buffer) {
235 memcpy(fw_buffer, fw->data, fw->size);
236
237 rc = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 2),
238 fw_buffer, fw->size, &dummy, 1000);
239
240 sms_info("sent %zd(%d) bytes, rc %d", fw->size, dummy, rc);
241
242 kfree(fw_buffer);
243 } else {
244 sms_err("failed to allocate firmware buffer");
245 rc = -ENOMEM;
246 }
247 sms_info("read FW %s, size=%zd", fw_filename, fw->size);
248
249 release_firmware(fw);
250
251 return rc;
252 }
253
254 static void smsusb1_detectmode(void *context, int *mode)
255 {
256 char *product_string =
257 ((struct smsusb_device_t *) context)->udev->product;
258
259 *mode = DEVICE_MODE_NONE;
260
261 if (!product_string) {
262 product_string = "none";
263 sms_err("product string not found");
264 } else if (strstr(product_string, "DVBH"))
265 *mode = 1;
266 else if (strstr(product_string, "BDA"))
267 *mode = 4;
268 else if (strstr(product_string, "DVBT"))
269 *mode = 0;
270 else if (strstr(product_string, "TDMB"))
271 *mode = 2;
272
273 sms_info("%d \"%s\"", *mode, product_string);
274 }
275
276 static int smsusb1_setmode(void *context, int mode)
277 {
278 struct SmsMsgHdr_ST Msg = { MSG_SW_RELOAD_REQ, 0, HIF_TASK,
279 sizeof(struct SmsMsgHdr_ST), 0 };
280
281 if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) {
282 sms_err("invalid firmware id specified %d", mode);
283 return -EINVAL;
284 }
285
286 return smsusb_sendrequest(context, &Msg, sizeof(Msg));
287 }
288
289 static void smsusb_term_device(struct usb_interface *intf)
290 {
291 struct smsusb_device_t *dev = usb_get_intfdata(intf);
292
293 if (dev) {
294 smsusb_stop_streaming(dev);
295
296 /* unregister from smscore */
297 if (dev->coredev)
298 smscore_unregister_device(dev->coredev);
299
300 kfree(dev);
301
302 sms_info("device %p destroyed", dev);
303 }
304
305 usb_set_intfdata(intf, NULL);
306 }
307
308 static int smsusb_init_device(struct usb_interface *intf, int board_id)
309 {
310 struct smsdevice_params_t params;
311 struct smsusb_device_t *dev;
312 int i, rc;
313
314 /* create device object */
315 dev = kzalloc(sizeof(struct smsusb_device_t), GFP_KERNEL);
316 if (!dev) {
317 sms_err("kzalloc(sizeof(struct smsusb_device_t) failed");
318 return -ENOMEM;
319 }
320
321 memset(&params, 0, sizeof(params));
322 usb_set_intfdata(intf, dev);
323 dev->udev = interface_to_usbdev(intf);
324
325 params.device_type = sms_get_board(board_id)->type;
326
327 switch (params.device_type) {
328 case SMS_STELLAR:
329 dev->buffer_size = USB1_BUFFER_SIZE;
330
331 params.setmode_handler = smsusb1_setmode;
332 params.detectmode_handler = smsusb1_detectmode;
333 break;
334 default:
335 sms_err("Unspecified sms device type!");
336 /* fall-thru */
337 case SMS_NOVA_A0:
338 case SMS_NOVA_B0:
339 case SMS_VEGA:
340 dev->buffer_size = USB2_BUFFER_SIZE;
341 dev->response_alignment =
342 le16_to_cpu(dev->udev->ep_in[1]->desc.wMaxPacketSize) -
343 sizeof(struct SmsMsgHdr_ST);
344
345 params.flags |= SMS_DEVICE_FAMILY2;
346 break;
347 }
348
349 params.device = &dev->udev->dev;
350 params.buffer_size = dev->buffer_size;
351 params.num_buffers = MAX_BUFFERS;
352 params.sendrequest_handler = smsusb_sendrequest;
353 params.context = dev;
354 usb_make_path(dev->udev, params.devpath, sizeof(params.devpath));
355
356 /* register in smscore */
357 rc = smscore_register_device(&params, &dev->coredev);
358 if (rc < 0) {
359 sms_err("smscore_register_device(...) failed, rc %d", rc);
360 smsusb_term_device(intf);
361 return rc;
362 }
363
364 smscore_set_board_id(dev->coredev, board_id);
365
366 /* initialize urbs */
367 for (i = 0; i < MAX_URBS; i++) {
368 dev->surbs[i].dev = dev;
369 usb_init_urb(&dev->surbs[i].urb);
370 }
371
372 sms_info("smsusb_start_streaming(...).");
373 rc = smsusb_start_streaming(dev);
374 if (rc < 0) {
375 sms_err("smsusb_start_streaming(...) failed");
376 smsusb_term_device(intf);
377 return rc;
378 }
379
380 rc = smscore_start_device(dev->coredev);
381 if (rc < 0) {
382 sms_err("smscore_start_device(...) failed");
383 smsusb_term_device(intf);
384 return rc;
385 }
386
387 sms_info("device %p created", dev);
388
389 return rc;
390 }
391
392 static int __devinit smsusb_probe(struct usb_interface *intf,
393 const struct usb_device_id *id)
394 {
395 struct usb_device *udev = interface_to_usbdev(intf);
396 char devpath[32];
397 int i, rc;
398
399 rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
400 rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
401
402 if (intf->num_altsetting > 0) {
403 rc = usb_set_interface(
404 udev, intf->cur_altsetting->desc.bInterfaceNumber, 0);
405 if (rc < 0) {
406 sms_err("usb_set_interface failed, rc %d", rc);
407 return rc;
408 }
409 }
410
411 sms_info("smsusb_probe %d",
412 intf->cur_altsetting->desc.bInterfaceNumber);
413 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++)
414 sms_info("endpoint %d %02x %02x %d", i,
415 intf->cur_altsetting->endpoint[i].desc.bEndpointAddress,
416 intf->cur_altsetting->endpoint[i].desc.bmAttributes,
417 intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
418
419 if ((udev->actconfig->desc.bNumInterfaces == 2) &&
420 (intf->cur_altsetting->desc.bInterfaceNumber == 0)) {
421 sms_err("rom interface 0 is not used");
422 return -ENODEV;
423 }
424
425 if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
426 snprintf(devpath, sizeof(devpath), "usb\\%d-%s",
427 udev->bus->busnum, udev->devpath);
428 sms_info("stellar device was found.");
429 return smsusb1_load_firmware(
430 udev, smscore_registry_getmode(devpath),
431 id->driver_info);
432 }
433
434 rc = smsusb_init_device(intf, id->driver_info);
435 sms_info("rc %d", rc);
436 sms_board_load_modules(id->driver_info);
437 return rc;
438 }
439
440 static void smsusb_disconnect(struct usb_interface *intf)
441 {
442 smsusb_term_device(intf);
443 }
444
445 static int smsusb_suspend(struct usb_interface *intf, pm_message_t msg)
446 {
447 struct smsusb_device_t *dev = usb_get_intfdata(intf);
448 printk(KERN_INFO "%s: Entering status %d.\n", __func__, msg.event);
449 smsusb_stop_streaming(dev);
450 return 0;
451 }
452
453 static int smsusb_resume(struct usb_interface *intf)
454 {
455 int rc, i;
456 struct smsusb_device_t *dev = usb_get_intfdata(intf);
457 struct usb_device *udev = interface_to_usbdev(intf);
458
459 printk(KERN_INFO "%s: Entering.\n", __func__);
460 usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
461 usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
462
463 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++)
464 printk(KERN_INFO "endpoint %d %02x %02x %d\n", i,
465 intf->cur_altsetting->endpoint[i].desc.bEndpointAddress,
466 intf->cur_altsetting->endpoint[i].desc.bmAttributes,
467 intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
468
469 if (intf->num_altsetting > 0) {
470 rc = usb_set_interface(udev,
471 intf->cur_altsetting->desc.
472 bInterfaceNumber, 0);
473 if (rc < 0) {
474 printk(KERN_INFO "%s usb_set_interface failed, "
475 "rc %d\n", __func__, rc);
476 return rc;
477 }
478 }
479
480 smsusb_start_streaming(dev);
481 return 0;
482 }
483
484 static const struct usb_device_id smsusb_id_table[] __devinitconst = {
485 { USB_DEVICE(0x187f, 0x0010),
486 .driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
487 { USB_DEVICE(0x187f, 0x0100),
488 .driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
489 { USB_DEVICE(0x187f, 0x0200),
490 .driver_info = SMS1XXX_BOARD_SIANO_NOVA_A },
491 { USB_DEVICE(0x187f, 0x0201),
492 .driver_info = SMS1XXX_BOARD_SIANO_NOVA_B },
493 { USB_DEVICE(0x187f, 0x0300),
494 .driver_info = SMS1XXX_BOARD_SIANO_VEGA },
495 { USB_DEVICE(0x2040, 0x1700),
496 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_CATAMOUNT },
497 { USB_DEVICE(0x2040, 0x1800),
498 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_OKEMO_A },
499 { USB_DEVICE(0x2040, 0x1801),
500 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_OKEMO_B },
501 { USB_DEVICE(0x2040, 0x2000),
502 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
503 { USB_DEVICE(0x2040, 0x2009),
504 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2 },
505 { USB_DEVICE(0x2040, 0x200a),
506 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
507 { USB_DEVICE(0x2040, 0x2010),
508 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
509 { USB_DEVICE(0x2040, 0x2011),
510 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
511 { USB_DEVICE(0x2040, 0x2019),
512 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
513 { USB_DEVICE(0x2040, 0x5500),
514 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
515 { USB_DEVICE(0x2040, 0x5510),
516 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
517 { USB_DEVICE(0x2040, 0x5520),
518 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
519 { USB_DEVICE(0x2040, 0x5530),
520 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
521 { USB_DEVICE(0x2040, 0x5580),
522 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
523 { USB_DEVICE(0x2040, 0x5590),
524 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
525 { USB_DEVICE(0x187f, 0x0202),
526 .driver_info = SMS1XXX_BOARD_SIANO_NICE },
527 { USB_DEVICE(0x187f, 0x0301),
528 .driver_info = SMS1XXX_BOARD_SIANO_VENICE },
529 { USB_DEVICE(0x2040, 0xb900),
530 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
531 { USB_DEVICE(0x2040, 0xb910),
532 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
533 { USB_DEVICE(0x2040, 0xb980),
534 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
535 { USB_DEVICE(0x2040, 0xb990),
536 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
537 { USB_DEVICE(0x2040, 0xc000),
538 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
539 { USB_DEVICE(0x2040, 0xc010),
540 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
541 { USB_DEVICE(0x2040, 0xc080),
542 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
543 { USB_DEVICE(0x2040, 0xc090),
544 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
545 { } /* Terminating entry */
546 };
547
548 MODULE_DEVICE_TABLE(usb, smsusb_id_table);
549
550 static struct usb_driver smsusb_driver = {
551 .name = "smsusb",
552 .probe = smsusb_probe,
553 .disconnect = smsusb_disconnect,
554 .id_table = smsusb_id_table,
555
556 .suspend = smsusb_suspend,
557 .resume = smsusb_resume,
558 };
559
560 static int __init smsusb_module_init(void)
561 {
562 int rc = usb_register(&smsusb_driver);
563 if (rc)
564 sms_err("usb_register failed. Error number %d", rc);
565
566 sms_debug("");
567
568 return rc;
569 }
570
571 static void __exit smsusb_module_exit(void)
572 {
573 /* Regular USB Cleanup */
574 usb_deregister(&smsusb_driver);
575 sms_info("end");
576 }
577
578 module_init(smsusb_module_init);
579 module_exit(smsusb_module_exit);
580
581 MODULE_DESCRIPTION("Driver for the Siano SMS1xxx USB dongle");
582 MODULE_AUTHOR("Siano Mobile Silicon, INC. (uris@siano-ms.com)");
583 MODULE_LICENSE("GPL");