aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/dvb/b2c2/flexcop-usb.c
blob: 515954f96c9a6afa11eb5e708963216590ee5bdb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
/*
 * This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
 *
 * flexcop-usb.c - covers the USB part.
 *
 * see flexcop.c for copyright information.
 */

#define FC_LOG_PREFIX "flexcop_usb"
#include "flexcop-usb.h"
#include "flexcop-common.h"

/* Version information */
#define DRIVER_VERSION "0.1"
#define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV USB Driver"
#define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@desy.de>"

/* debug */
#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
#define dprintk(level,args...) \
	    do { if ((debug & level)) { printk(args); } } while (0)
#define debug_dump(b,l,method) {\
	int i; \
	for (i = 0; i < l; i++) method("%02x ", b[i]); \
	method("\n");\
}

#define DEBSTATUS ""
#else
#define dprintk(level,args...)
#define debug_dump(b,l,method)
#define DEBSTATUS " (debugging is not enabled)"
#endif

static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=info,ts=2,ctrl=4,i2c=8,v8mem=16 (or-able))." DEBSTATUS);
#undef DEBSTATUS

#define deb_info(args...) dprintk(0x01,args)
#define deb_ts(args...)   dprintk(0x02,args)
#define deb_ctrl(args...) dprintk(0x04,args)
#define deb_i2c(args...)  dprintk(0x08,args)
#define deb_v8(args...)   dprintk(0x10,args)

/* JLP 111700: we will include the 1 bit gap between the upper and lower 3 bits
 * in the IBI address, to make the V8 code simpler.
 * PCI ADDRESS FORMAT: 0x71C -> 0000 0111 0001 1100 (these are the six bits used)
 *                  in general: 0000 0HHH 000L LL00
 * IBI ADDRESS FORMAT:                    RHHH BLLL
 *
 * where R is the read(1)/write(0) bit, B is the busy bit
 * and HHH and LLL are the two sets of three bits from the PCI address.
 */
#define B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(usPCI) (u8) (((usPCI >> 2) & 0x07) + ((usPCI >> 4) & 0x70))
#define B2C2_FLEX_INTERNALADDR_TO_PCIOFFSET(ucAddr) (u16) (((ucAddr & 0x07) << 2) + ((ucAddr & 0x70) << 4))

/*
 * DKT 020228
 * - forget about this VENDOR_BUFFER_SIZE, read and write register
 *   deal with DWORD or 4 bytes, that should be should from now on
 * - from now on, we don't support anything older than firm 1.00
 *   I eliminated the write register as a 2 trip of writing hi word and lo word
 *   and force this to write only 4 bytes at a time.
 *   NOTE: this should work with all the firmware from 1.00 and newer
 */
static int flexcop_usb_readwrite_dw(struct flexcop_device *fc, u16 wRegOffsPCI, u32 *val, u8 read)
{
	struct flexcop_usb *fc_usb = fc->bus_specific;
	u8 request = read ? B2C2_USB_READ_REG : B2C2_USB_WRITE_REG;
	u8 request_type = (read ? USB_DIR_IN : USB_DIR_OUT) | USB_TYPE_VENDOR;
	u8 wAddress = B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(wRegOffsPCI) | (read ? 0x80 : 0);

	int len = usb_control_msg(fc_usb->udev,
			read ? B2C2_USB_CTRL_PIPE_IN : B2C2_USB_CTRL_PIPE_OUT,
			request,
			request_type,  /* 0xc0 read or 0x40 write*/
			wAddress,
			0,
			val,
			sizeof(u32),
			B2C2_WAIT_FOR_OPERATION_RDW * HZ);

	if (len != sizeof(u32)) {
		err("error while %s dword from %d (%d).",read ? "reading" : "writing",
			wAddress,wRegOffsPCI);
		return -EIO;
	}
	return 0;
}

/*
 * DKT 010817 - add support for V8 memory read/write and flash update
 */
static int flexcop_usb_v8_memory_req(struct flexcop_usb *fc_usb,
		flexcop_usb_request_t req, u8 page, u16 wAddress,
		u8 *pbBuffer,u32 buflen)
{
//	u8 dwRequestType;
	u8 request_type = USB_TYPE_VENDOR;
	u16 wIndex;
	int nWaitTime,pipe,len;

	wIndex = page << 8;

	switch (req) {
		case B2C2_USB_READ_V8_MEM:
			nWaitTime = B2C2_WAIT_FOR_OPERATION_V8READ;
			request_type |= USB_DIR_IN;
//			dwRequestType = (u8) RTYPE_READ_V8_MEMORY;
			pipe = B2C2_USB_CTRL_PIPE_IN;
		break;
		case B2C2_USB_WRITE_V8_MEM:
			wIndex |= pbBuffer[0];
			request_type |= USB_DIR_OUT;
			nWaitTime = B2C2_WAIT_FOR_OPERATION_V8WRITE;
//			dwRequestType = (u8) RTYPE_WRITE_V8_MEMORY;
			pipe = B2C2_USB_CTRL_PIPE_OUT;
		break;
		case B2C2_USB_FLASH_BLOCK:
			request_type |= USB_DIR_OUT;
			nWaitTime = B2C2_WAIT_FOR_OPERATION_V8FLASH;
//			dwRequestType = (u8) RTYPE_WRITE_V8_FLASH;
			pipe = B2C2_USB_CTRL_PIPE_OUT;
		break;
		default:
			deb_info("unsupported request for v8_mem_req %x.\n",req);
		return -EINVAL;
	}
	deb_v8("v8mem: %02x %02x %04x %04x, len: %d\n",request_type,req,
			wAddress,wIndex,buflen);

	len = usb_control_msg(fc_usb->udev,pipe,
			req,
			request_type,
			wAddress,
			wIndex,
			pbBuffer,
			buflen,
			nWaitTime * HZ);

	debug_dump(pbBuffer,len,deb_v8);

	return len == buflen ? 0 : -EIO;
}

#define bytes_left_to_read_on_page(paddr,buflen) \
			((V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)) > buflen \
			? buflen : (V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)))

static int flexcop_usb_memory_req(struct flexcop_usb *fc_usb,flexcop_usb_request_t req,
		flexcop_usb_mem_page_t page_start, u32 addr, int extended, u8 *buf, u32 len)
{
	int i,ret = 0;
	u16 wMax;
	u32 pagechunk = 0;

	switch(req) {
		case B2C2_USB_READ_V8_MEM:  wMax = USB_MEM_READ_MAX; break;
		case B2C2_USB_WRITE_V8_MEM:	wMax = USB_MEM_WRITE_MAX; break;
		case B2C2_USB_FLASH_BLOCK:  wMax = USB_FLASH_MAX; break;
		default:
			return -EINVAL;
		break;
	}
	for (i = 0; i < len;) {
		pagechunk = wMax < bytes_left_to_read_on_page(addr,len) ? wMax : bytes_left_to_read_on_page(addr,len);
		deb_info("%x\n",(addr & V8_MEMORY_PAGE_MASK) | (V8_MEMORY_EXTENDED*extended));
		if ((ret = flexcop_usb_v8_memory_req(fc_usb,req,
				page_start + (addr / V8_MEMORY_PAGE_SIZE), /* actual page */
				(addr & V8_MEMORY_PAGE_MASK) | (V8_MEMORY_EXTENDED*extended),
				&buf[i],pagechunk)) < 0)
			return ret;

		addr += pagechunk;
		len -= pagechunk;
	}
	return 0;
}

static int flexcop_usb_get_mac_addr(struct flexcop_device *fc, int extended)
{
	return flexcop_usb_memory_req(fc->bus_specific,B2C2_USB_READ_V8_MEM,
			V8_MEMORY_PAGE_FLASH,0x1f010,1,fc->dvb_adapter.proposed_mac,6);
}

#if 0
static int flexcop_usb_utility_req(struct flexcop_usb *fc_usb, int set,
		flexcop_usb_utility_function_t func, u8 extra, u16 wIndex,
		u16 buflen, u8 *pvBuffer)
{
	u16 wValue;
	u8 request_type = (set ? USB_DIR_OUT : USB_DIR_IN) | USB_TYPE_VENDOR;
//	u8 dwRequestType = (u8) RTYPE_GENERIC,
	int nWaitTime = 2,
		pipe = set ? B2C2_USB_CTRL_PIPE_OUT : B2C2_USB_CTRL_PIPE_IN,
		len;

	wValue = (func << 8) | extra;

	len = usb_control_msg(fc_usb->udev,pipe,
			B2C2_USB_UTILITY,
			request_type,
			wValue,
			wIndex,
			pvBuffer,
			buflen,
			nWaitTime * HZ);
	return len == buflen ? 0 : -EIO;
}
#endif

/* usb i2c stuff */
static int flexcop_usb_i2c_req(struct flexcop_usb *fc_usb,
		flexcop_usb_request_t req, flexcop_usb_i2c_function_t func,
		flexcop_i2c_port_t port, u8 chipaddr, u8 addr, u8 *buf, u8 buflen)
{
	u16 wValue, wIndex;
	int nWaitTime,pipe,len;
//	u8 dwRequestType;
	u8 request_type = USB_TYPE_VENDOR;

	switch (func) {
		case USB_FUNC_I2C_WRITE:
		case USB_FUNC_I2C_MULTIWRITE:
		case USB_FUNC_I2C_REPEATWRITE:
		/* DKT 020208 - add this to support special case of DiSEqC */
		case USB_FUNC_I2C_CHECKWRITE:
			pipe = B2C2_USB_CTRL_PIPE_OUT;
			nWaitTime = 2;
//			dwRequestType = (u8) RTYPE_GENERIC;
			request_type |= USB_DIR_OUT;
		break;
		case USB_FUNC_I2C_READ:
		case USB_FUNC_I2C_REPEATREAD:
			pipe = B2C2_USB_CTRL_PIPE_IN;
			nWaitTime = 2;
//			dwRequestType = (u8) RTYPE_GENERIC;
			request_type |= USB_DIR_IN;
		break;
		default:
			deb_info("unsupported function for i2c_req %x\n",func);
			return -EINVAL;
	}
	wValue = (func << 8 ) | (port << 4);
	wIndex = (chipaddr << 8 ) | addr;

	deb_i2c("i2c %2d: %02x %02x %02x %02x %02x %02x\n",func,request_type,req,
			((wValue && 0xff) << 8),wValue >> 8,((wIndex && 0xff) << 8),wIndex >> 8);

	len = usb_control_msg(fc_usb->udev,pipe,
			req,
			request_type,
			wValue,
			wIndex,
			buf,
			buflen,
			nWaitTime * HZ);

	return len == buflen ? 0 : -EREMOTEIO;
}

/* actual bus specific access functions, make sure prototype are/will be equal to pci */
static flexcop_ibi_value flexcop_usb_read_ibi_reg(struct flexcop_device *fc, flexcop_ibi_register reg)
{
	flexcop_ibi_value val;
	val.raw = 0;
	flexcop_usb_readwrite_dw(fc,reg, &val.raw, 1);
	return val;
}

static int flexcop_usb_write_ibi_reg(struct flexcop_device *fc, flexcop_ibi_register reg, flexcop_ibi_value val)
{
	return flexcop_usb_readwrite_dw(fc,reg, &val.raw, 0);
}

static int flexcop_usb_i2c_request(struct flexcop_device *fc, flexcop_access_op_t op,
		flexcop_i2c_port_t port, u8 chipaddr, u8 addr, u8 *buf, u16 len)
{
	if (op == FC_READ)
		return flexcop_usb_i2c_req(fc->bus_specific,B2C2_USB_I2C_REQUEST,USB_FUNC_I2C_READ,port,chipaddr,addr,buf,len);
	else
		return flexcop_usb_i2c_req(fc->bus_specific,B2C2_USB_I2C_REQUEST,USB_FUNC_I2C_WRITE,port,chipaddr,addr,buf,len);
}

static void flexcop_usb_process_frame(struct flexcop_usb *fc_usb, u8 *buffer, int buffer_length)
{
	u8 *b;
	int l;

	deb_ts("tmp_buffer_length=%d, buffer_length=%d\n", fc_usb->tmp_buffer_length, buffer_length);

	if (fc_usb->tmp_buffer_length > 0) {
		memcpy(fc_usb->tmp_buffer+fc_usb->tmp_buffer_length, buffer, buffer_length);
		fc_usb->tmp_buffer_length += buffer_length;
		b = fc_usb->tmp_buffer;
		l = fc_usb->tmp_buffer_length;
	} else {
		b=buffer;
		l=buffer_length;
	}

	while (l >= 190) {
		if (*b == 0xff)
			switch (*(b+1) & 0x03) {
				case 0x01: /* media packet */
					if ( *(b+2) == 0x47 )
						flexcop_pass_dmx_packets(fc_usb->fc_dev, b+2, 1);
					else
						deb_ts("not ts packet %02x %02x %02x %02x \n", *(b+2), *(b+3), *(b+4), *(b+5) );

					b += 190;
					l -= 190;
				break;
				default:
					deb_ts("wrong packet type\n");
					l = 0;
				break;
			}
		else {
			deb_ts("wrong header\n");
			l = 0;
		}
	}

	if (l>0)
		memcpy(fc_usb->tmp_buffer, b, l);
	fc_usb->tmp_buffer_length = l;
}

static void flexcop_usb_urb_complete(struct urb *urb, struct pt_regs *ptregs)
{
	struct flexcop_usb *fc_usb = urb->context;
	int i;

	if (urb->actual_length > 0)
		deb_ts("urb completed, bufsize: %d actlen; %d\n",urb->transfer_buffer_length, urb->actual_length);

	for (i = 0; i < urb->number_of_packets; i++) {
		if (urb->iso_frame_desc[i].status < 0) {
			err("iso frame descriptor %d has an error: %d\n",i,urb->iso_frame_desc[i].status);
		} else
			if (urb->iso_frame_desc[i].actual_length > 0) {
				deb_ts("passed %d bytes to the demux\n",urb->iso_frame_desc[i].actual_length);

				flexcop_usb_process_frame(fc_usb,
					urb->transfer_buffer + urb->iso_frame_desc[i].offset,
					urb->iso_frame_desc[i].actual_length);
		}
		urb->iso_frame_desc[i].status = 0;
		urb->iso_frame_desc[i].actual_length = 0;
	}

	usb_submit_urb(urb,GFP_ATOMIC);
}

static int flexcop_usb_stream_control(struct flexcop_device *fc, int onoff)
{
	/* submit/kill iso packets */
	return 0;
}

static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
{
	int i;
	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
		if (fc_usb->iso_urb[i] != NULL) {
			deb_ts("unlinking/killing urb no. %d\n",i);
			usb_kill_urb(fc_usb->iso_urb[i]);
			usb_free_urb(fc_usb->iso_urb[i]);
		}

	if (fc_usb->iso_buffer != NULL)
		pci_free_consistent(NULL,fc_usb->buffer_size, fc_usb->iso_buffer, fc_usb->dma_addr);
}

static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
{
	u16 frame_size = fc_usb->uintf->cur_altsetting->endpoint[0].desc.wMaxPacketSize;
	int bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO * frame_size,i,j,ret;
	int buffer_offset = 0;

	deb_ts("creating %d iso-urbs with %d frames each of %d bytes size = %d.\n",
			B2C2_USB_NUM_ISO_URB, B2C2_USB_FRAMES_PER_ISO, frame_size,bufsize);

	fc_usb->iso_buffer = pci_alloc_consistent(NULL,bufsize,&fc_usb->dma_addr);
	if (fc_usb->iso_buffer == NULL)
		return -ENOMEM;
	memset(fc_usb->iso_buffer, 0, bufsize);
	fc_usb->buffer_size = bufsize;

	/* creating iso urbs */
	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
		if (!(fc_usb->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,GFP_ATOMIC))) {
			ret = -ENOMEM;
			goto urb_error;
		}
	/* initialising and submitting iso urbs */
	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
		int frame_offset = 0;
		struct urb *urb = fc_usb->iso_urb[i];
		deb_ts("initializing and submitting urb no. %d (buf_offset: %d).\n",i,buffer_offset);

		urb->dev = fc_usb->udev;
		urb->context = fc_usb;
		urb->complete = flexcop_usb_urb_complete;
		urb->pipe = B2C2_USB_DATA_PIPE;
		urb->transfer_flags = URB_ISO_ASAP;
		urb->interval = 1;
		urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
		urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
		urb->transfer_buffer = fc_usb->iso_buffer + buffer_offset;

		buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
		for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
			deb_ts("urb no: %d, frame: %d, frame_offset: %d\n",i,j,frame_offset);
			urb->iso_frame_desc[j].offset = frame_offset;
			urb->iso_frame_desc[j].length = frame_size;
			frame_offset += frame_size;
		}

		if ((ret = usb_submit_urb(fc_usb->iso_urb[i],GFP_ATOMIC))) {
			err("submitting urb %d failed with %d.",i,ret);
			goto urb_error;
		}
		deb_ts("submitted urb no. %d.\n",i);
	}

/* SRAM */

	flexcop_sram_set_dest(fc_usb->fc_dev,FC_SRAM_DEST_MEDIA | FC_SRAM_DEST_NET |
			FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_WAN_USB);
	flexcop_wan_set_speed(fc_usb->fc_dev,FC_WAN_SPEED_8MBITS);
	flexcop_sram_ctrl(fc_usb->fc_dev,1,1,1);

	return 0;

urb_error:
	flexcop_usb_transfer_exit(fc_usb);
	return ret;
}

static int flexcop_usb_init(struct flexcop_usb *fc_usb)
{
	/* use the alternate setting with the larges buffer */
	usb_set_interface(fc_usb->udev,0,1);
	switch (fc_usb->udev->speed) {
		case USB_SPEED_LOW:
			err("cannot handle USB speed because it is to sLOW.");
			return -ENODEV;
			break;
		case USB_SPEED_FULL:
			info("running at FULL speed.");
			break;
		case USB_SPEED_HIGH:
			info("running at HIGH speed.");
			break;
		case USB_SPEED_UNKNOWN: /* fall through */
		default:
			err("cannot handle USB speed because it is unkown.");
			return -ENODEV;
	}
	usb_set_intfdata(fc_usb->uintf, fc_usb);
	return 0;
}

static void flexcop_usb_exit(struct flexcop_usb *fc_usb)
{
	usb_set_intfdata(fc_usb->uintf, NULL);
}

static int flexcop_usb_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
{
	struct usb_device *udev = interface_to_usbdev(intf);
	struct flexcop_usb *fc_usb = NULL;
	struct flexcop_device *fc = NULL;
	int ret;

	if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
		err("out of memory\n");
		return -ENOMEM;
	}

/* general flexcop init */
	fc_usb = fc->bus_specific;
	fc_usb->fc_dev = fc;

	fc->read_ibi_reg  = flexcop_usb_read_ibi_reg;
	fc->write_ibi_reg = flexcop_usb_write_ibi_reg;
	fc->i2c_request = flexcop_usb_i2c_request;
	fc->get_mac_addr = flexcop_usb_get_mac_addr;

	fc->stream_control = flexcop_usb_stream_control;

	fc->pid_filtering = 1;
	fc->bus_type = FC_USB;

	fc->dev = &udev->dev;
	fc->owner = THIS_MODULE;

/* bus specific part */
	fc_usb->udev = udev;
	fc_usb->uintf = intf;
	if ((ret = flexcop_usb_init(fc_usb)) != 0)
		goto err_kfree;

/* init flexcop */
	if ((ret = flexcop_device_initialize(fc)) != 0)
		goto err_usb_exit;

/* xfer init */
	if ((ret = flexcop_usb_transfer_init(fc_usb)) != 0)
		goto err_fc_exit;

	info("%s successfully initialized and connected.",DRIVER_NAME);
	return 0;

err_fc_exit:
	flexcop_device_exit(fc);
err_usb_exit:
	flexcop_usb_exit(fc_usb);
err_kfree:
	flexcop_device_kfree(fc);
	return ret;
}

static void flexcop_usb_disconnect(struct usb_interface *intf)
{
	struct flexcop_usb *fc_usb = usb_get_intfdata(intf);
	flexcop_usb_transfer_exit(fc_usb);
	flexcop_device_exit(fc_usb->fc_dev);
	flexcop_usb_exit(fc_usb);
	flexcop_device_kfree(fc_usb->fc_dev);
	info("%s successfully deinitialized and disconnected.",DRIVER_NAME);
}

static struct usb_device_id flexcop_usb_table [] = {
	    { USB_DEVICE(0x0af7, 0x0101) },
	    { }
};
MODULE_DEVICE_TABLE (usb, flexcop_usb_table);

/* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver flexcop_usb_driver = {
	.name		= "b2c2_flexcop_usb",
	.probe		= flexcop_usb_probe,
	.disconnect = flexcop_usb_disconnect,
	.id_table	= flexcop_usb_table,
};

/* module stuff */
static int __init flexcop_usb_module_init(void)
{
	int result;
	if ((result = usb_register(&flexcop_usb_driver))) {
		err("usb_register failed. (%d)",result);
		return result;
	}

	return 0;
}

static void __exit flexcop_usb_module_exit(void)
{
	/* deregister this driver from the USB subsystem */
	usb_deregister(&flexcop_usb_driver);
}

module_init(flexcop_usb_module_init);
module_exit(flexcop_usb_module_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_NAME);
MODULE_LICENSE("GPL");