Use dentry_path() to create full path to inode object
[pohmelfs.git] / drivers / media / dvb / siano / smsusb.c
blobb1fe5137df09260189391a1347705ea66e1624a3
1 /****************************************************************
3 Siano Mobile Silicon, Inc.
4 MDTV receiver kernel modules.
5 Copyright (C) 2005-2009, Uri Shkolnik, Anatoly Greenblat
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.
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.
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/>.
20 ****************************************************************/
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 #include <linux/module.h>
29 #include "smscoreapi.h"
30 #include "sms-cards.h"
31 #include "smsendian.h"
33 static int sms_dbg;
34 module_param_named(debug, sms_dbg, int, 0644);
35 MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
37 #define USB1_BUFFER_SIZE 0x1000
38 #define USB2_BUFFER_SIZE 0x4000
40 #define MAX_BUFFERS 50
41 #define MAX_URBS 10
43 struct smsusb_device_t;
45 struct smsusb_urb_t {
46 struct smscore_buffer_t *cb;
47 struct smsusb_device_t *dev;
49 struct urb urb;
52 struct smsusb_device_t {
53 struct usb_device *udev;
54 struct smscore_device_t *coredev;
56 struct smsusb_urb_t surbs[MAX_URBS];
58 int response_alignment;
59 int buffer_size;
62 static int smsusb_submit_urb(struct smsusb_device_t *dev,
63 struct smsusb_urb_t *surb);
65 static void smsusb_onresponse(struct urb *urb)
67 struct smsusb_urb_t *surb = (struct smsusb_urb_t *) urb->context;
68 struct smsusb_device_t *dev = surb->dev;
70 if (urb->status == -ESHUTDOWN) {
71 sms_err("error, urb status %d (-ESHUTDOWN), %d bytes",
72 urb->status, urb->actual_length);
73 return;
76 if ((urb->actual_length > 0) && (urb->status == 0)) {
77 struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *)surb->cb->p;
79 smsendian_handle_message_header(phdr);
80 if (urb->actual_length >= phdr->msgLength) {
81 surb->cb->size = phdr->msgLength;
83 if (dev->response_alignment &&
84 (phdr->msgFlags & MSG_HDR_FLAG_SPLIT_MSG)) {
86 surb->cb->offset =
87 dev->response_alignment +
88 ((phdr->msgFlags >> 8) & 3);
90 /* sanity check */
91 if (((int) phdr->msgLength +
92 surb->cb->offset) > urb->actual_length) {
93 sms_err("invalid response "
94 "msglen %d offset %d "
95 "size %d",
96 phdr->msgLength,
97 surb->cb->offset,
98 urb->actual_length);
99 goto exit_and_resubmit;
102 /* move buffer pointer and
103 * copy header to its new location */
104 memcpy((char *) phdr + surb->cb->offset,
105 phdr, sizeof(struct SmsMsgHdr_ST));
106 } else
107 surb->cb->offset = 0;
109 smscore_onresponse(dev->coredev, surb->cb);
110 surb->cb = NULL;
111 } else {
112 sms_err("invalid response "
113 "msglen %d actual %d",
114 phdr->msgLength, urb->actual_length);
116 } else
117 sms_err("error, urb status %d, %d bytes",
118 urb->status, urb->actual_length);
121 exit_and_resubmit:
122 smsusb_submit_urb(dev, surb);
125 static int smsusb_submit_urb(struct smsusb_device_t *dev,
126 struct smsusb_urb_t *surb)
128 if (!surb->cb) {
129 surb->cb = smscore_getbuffer(dev->coredev);
130 if (!surb->cb) {
131 sms_err("smscore_getbuffer(...) returned NULL");
132 return -ENOMEM;
136 usb_fill_bulk_urb(
137 &surb->urb,
138 dev->udev,
139 usb_rcvbulkpipe(dev->udev, 0x81),
140 surb->cb->p,
141 dev->buffer_size,
142 smsusb_onresponse,
143 surb
145 surb->urb.transfer_dma = surb->cb->phys;
146 surb->urb.transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
148 return usb_submit_urb(&surb->urb, GFP_ATOMIC);
151 static void smsusb_stop_streaming(struct smsusb_device_t *dev)
153 int i;
155 for (i = 0; i < MAX_URBS; i++) {
156 usb_kill_urb(&dev->surbs[i].urb);
158 if (dev->surbs[i].cb) {
159 smscore_putbuffer(dev->coredev, dev->surbs[i].cb);
160 dev->surbs[i].cb = NULL;
165 static int smsusb_start_streaming(struct smsusb_device_t *dev)
167 int i, rc;
169 for (i = 0; i < MAX_URBS; i++) {
170 rc = smsusb_submit_urb(dev, &dev->surbs[i]);
171 if (rc < 0) {
172 sms_err("smsusb_submit_urb(...) failed");
173 smsusb_stop_streaming(dev);
174 break;
178 return rc;
181 static int smsusb_sendrequest(void *context, void *buffer, size_t size)
183 struct smsusb_device_t *dev = (struct smsusb_device_t *) context;
184 int dummy;
186 smsendian_handle_message_header((struct SmsMsgHdr_ST *)buffer);
187 return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
188 buffer, size, &dummy, 1000);
191 static char *smsusb1_fw_lkup[] = {
192 "dvbt_stellar_usb.inp",
193 "dvbh_stellar_usb.inp",
194 "tdmb_stellar_usb.inp",
195 "none",
196 "dvbt_bda_stellar_usb.inp",
199 static inline char *sms_get_fw_name(int mode, int board_id)
201 char **fw = sms_get_board(board_id)->fw;
202 return (fw && fw[mode]) ? fw[mode] : smsusb1_fw_lkup[mode];
205 static int smsusb1_load_firmware(struct usb_device *udev, int id, int board_id)
207 const struct firmware *fw;
208 u8 *fw_buffer;
209 int rc, dummy;
210 char *fw_filename;
212 if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA) {
213 sms_err("invalid firmware id specified %d", id);
214 return -EINVAL;
217 fw_filename = sms_get_fw_name(id, board_id);
219 rc = request_firmware(&fw, fw_filename, &udev->dev);
220 if (rc < 0) {
221 sms_warn("failed to open \"%s\" mode %d, "
222 "trying again with default firmware", fw_filename, id);
224 fw_filename = smsusb1_fw_lkup[id];
225 rc = request_firmware(&fw, fw_filename, &udev->dev);
226 if (rc < 0) {
227 sms_warn("failed to open \"%s\" mode %d",
228 fw_filename, id);
230 return rc;
234 fw_buffer = kmalloc(fw->size, GFP_KERNEL);
235 if (fw_buffer) {
236 memcpy(fw_buffer, fw->data, fw->size);
238 rc = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 2),
239 fw_buffer, fw->size, &dummy, 1000);
241 sms_info("sent %zd(%d) bytes, rc %d", fw->size, dummy, rc);
243 kfree(fw_buffer);
244 } else {
245 sms_err("failed to allocate firmware buffer");
246 rc = -ENOMEM;
248 sms_info("read FW %s, size=%zd", fw_filename, fw->size);
250 release_firmware(fw);
252 return rc;
255 static void smsusb1_detectmode(void *context, int *mode)
257 char *product_string =
258 ((struct smsusb_device_t *) context)->udev->product;
260 *mode = DEVICE_MODE_NONE;
262 if (!product_string) {
263 product_string = "none";
264 sms_err("product string not found");
265 } else if (strstr(product_string, "DVBH"))
266 *mode = 1;
267 else if (strstr(product_string, "BDA"))
268 *mode = 4;
269 else if (strstr(product_string, "DVBT"))
270 *mode = 0;
271 else if (strstr(product_string, "TDMB"))
272 *mode = 2;
274 sms_info("%d \"%s\"", *mode, product_string);
277 static int smsusb1_setmode(void *context, int mode)
279 struct SmsMsgHdr_ST Msg = { MSG_SW_RELOAD_REQ, 0, HIF_TASK,
280 sizeof(struct SmsMsgHdr_ST), 0 };
282 if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) {
283 sms_err("invalid firmware id specified %d", mode);
284 return -EINVAL;
287 return smsusb_sendrequest(context, &Msg, sizeof(Msg));
290 static void smsusb_term_device(struct usb_interface *intf)
292 struct smsusb_device_t *dev = usb_get_intfdata(intf);
294 if (dev) {
295 smsusb_stop_streaming(dev);
297 /* unregister from smscore */
298 if (dev->coredev)
299 smscore_unregister_device(dev->coredev);
301 sms_info("device %p destroyed", dev);
302 kfree(dev);
305 usb_set_intfdata(intf, NULL);
308 static int smsusb_init_device(struct usb_interface *intf, int board_id)
310 struct smsdevice_params_t params;
311 struct smsusb_device_t *dev;
312 int i, rc;
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;
321 memset(&params, 0, sizeof(params));
322 usb_set_intfdata(intf, dev);
323 dev->udev = interface_to_usbdev(intf);
325 params.device_type = sms_get_board(board_id)->type;
327 switch (params.device_type) {
328 case SMS_STELLAR:
329 dev->buffer_size = USB1_BUFFER_SIZE;
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);
345 params.flags |= SMS_DEVICE_FAMILY2;
346 break;
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));
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;
364 smscore_set_board_id(dev->coredev, board_id);
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);
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;
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;
387 sms_info("device %p created", dev);
389 return rc;
392 static int __devinit smsusb_probe(struct usb_interface *intf,
393 const struct usb_device_id *id)
395 struct usb_device *udev = interface_to_usbdev(intf);
396 char devpath[32];
397 int i, rc;
399 rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
400 rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
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;
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);
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;
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);
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;
440 static void smsusb_disconnect(struct usb_interface *intf)
442 smsusb_term_device(intf);
445 static int smsusb_suspend(struct usb_interface *intf, pm_message_t msg)
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;
453 static int smsusb_resume(struct usb_interface *intf)
455 int rc, i;
456 struct smsusb_device_t *dev = usb_get_intfdata(intf);
457 struct usb_device *udev = interface_to_usbdev(intf);
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));
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);
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;
480 smsusb_start_streaming(dev);
481 return 0;
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 */
548 MODULE_DEVICE_TABLE(usb, smsusb_id_table);
550 static struct usb_driver smsusb_driver = {
551 .name = "smsusb",
552 .probe = smsusb_probe,
553 .disconnect = smsusb_disconnect,
554 .id_table = smsusb_id_table,
556 .suspend = smsusb_suspend,
557 .resume = smsusb_resume,
560 module_usb_driver(smsusb_driver);
562 MODULE_DESCRIPTION("Driver for the Siano SMS1xxx USB dongle");
563 MODULE_AUTHOR("Siano Mobile Silicon, INC. (uris@siano-ms.com)");
564 MODULE_LICENSE("GPL");