flexcop-usb.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  4 * flexcop-usb.c - covers the USB part
  5 * see flexcop.c for copyright information
  6 */
  7#define FC_LOG_PREFIX "flexcop_usb"
  8#include "flexcop-usb.h"
  9#include "flexcop-common.h"
 10
 11/* Version information */
 12#define DRIVER_VERSION "0.1"
 13#define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV USB Driver"
 14#define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@posteo.de>"
 15
 16/* debug */
 17#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
 18#define dprintk(level, args...) \
 19	do { if ((debug & (level))) printk(args); } while (0)
 20
 21#define debug_dump(b, l, method) do {\
 22	int i; \
 23	for (i = 0; i < l; i++) \
 24		method("%02x ", b[i]); \
 25	method("\n"); \
 26} while (0)
 27
 28#define DEBSTATUS ""
 29#else
 30#define dprintk(level, args...) no_printk(args)
 31#define debug_dump(b, l, method) do { } while (0)
 32#define DEBSTATUS " (debugging is not enabled)"
 33#endif
 34
 35static int debug;
 36module_param(debug, int, 0644);
 37MODULE_PARM_DESC(debug, "set debugging level (1=info,ts=2,ctrl=4,i2c=8,v8mem=16 (or-able))." DEBSTATUS);
 38#undef DEBSTATUS
 39
 40#define deb_info(args...) dprintk(0x01, args)
 41#define deb_ts(args...) dprintk(0x02, args)
 42#define deb_ctrl(args...) dprintk(0x04, args)
 43#define deb_i2c(args...) dprintk(0x08, args)
 44#define deb_v8(args...) dprintk(0x10, args)
 45
 46/* JLP 111700: we will include the 1 bit gap between the upper and lower 3 bits
 47 * in the IBI address, to make the V8 code simpler.
 48 * PCI ADDRESS FORMAT: 0x71C -> 0000 0111 0001 1100 (the six bits used)
 49 *                  in general: 0000 0HHH 000L LL00
 50 * IBI ADDRESS FORMAT:                    RHHH BLLL
 51 *
 52 * where R is the read(1)/write(0) bit, B is the busy bit
 53 * and HHH and LLL are the two sets of three bits from the PCI address.
 54 */
 55#define B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(usPCI) (u8) \
 56	(((usPCI >> 2) & 0x07) + ((usPCI >> 4) & 0x70))
 57#define B2C2_FLEX_INTERNALADDR_TO_PCIOFFSET(ucAddr) (u16) \
 58	(((ucAddr & 0x07) << 2) + ((ucAddr & 0x70) << 4))
 59
 60/*
 61 * DKT 020228
 62 * - forget about this VENDOR_BUFFER_SIZE, read and write register
 63 *   deal with DWORD or 4 bytes, that should be should from now on
 64 * - from now on, we don't support anything older than firm 1.00
 65 *   I eliminated the write register as a 2 trip of writing hi word and lo word
 66 *   and force this to write only 4 bytes at a time.
 67 *   NOTE: this should work with all the firmware from 1.00 and newer
 68 */
 69static int flexcop_usb_readwrite_dw(struct flexcop_device *fc, u16 wRegOffsPCI, u32 *val, u8 read)
 70{
 71	struct flexcop_usb *fc_usb = fc->bus_specific;
 72	u8 request = read ? B2C2_USB_READ_REG : B2C2_USB_WRITE_REG;
 73	u8 request_type = (read ? USB_DIR_IN : USB_DIR_OUT) | USB_TYPE_VENDOR;
 74	u8 wAddress = B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(wRegOffsPCI) |
 75		(read ? 0x80 : 0);
 76	int ret;
 77
 78	mutex_lock(&fc_usb->data_mutex);
 79	if (!read)
 80		memcpy(fc_usb->data, val, sizeof(*val));
 81
 82	ret = usb_control_msg(fc_usb->udev,
 83			read ? B2C2_USB_CTRL_PIPE_IN : B2C2_USB_CTRL_PIPE_OUT,
 84			request,
 85			request_type, /* 0xc0 read or 0x40 write */
 86			wAddress,
 87			0,
 88			fc_usb->data,
 89			sizeof(u32),
 90			B2C2_WAIT_FOR_OPERATION_RDW);
 91
 92	if (ret != sizeof(u32)) {
 93		err("error while %s dword from %d (%d).", read ? "reading" :
 94				"writing", wAddress, wRegOffsPCI);
 95		if (ret >= 0)
 96			ret = -EIO;
 97	}
 98
 99	if (read && ret >= 0)
100		memcpy(val, fc_usb->data, sizeof(*val));
101	mutex_unlock(&fc_usb->data_mutex);
102
103	return ret;
104}
105/*
106 * DKT 010817 - add support for V8 memory read/write and flash update
107 */
108static int flexcop_usb_v8_memory_req(struct flexcop_usb *fc_usb,
109		flexcop_usb_request_t req, u8 page, u16 wAddress,
110		u8 *pbBuffer, u32 buflen)
111{
112	u8 request_type = USB_TYPE_VENDOR;
113	u16 wIndex;
114	int nWaitTime, pipe, ret;
115	wIndex = page << 8;
116
117	if (buflen > sizeof(fc_usb->data)) {
118		err("Buffer size bigger than max URB control message\n");
119		return -EIO;
120	}
121
122	switch (req) {
123	case B2C2_USB_READ_V8_MEM:
124		nWaitTime = B2C2_WAIT_FOR_OPERATION_V8READ;
125		request_type |= USB_DIR_IN;
126		pipe = B2C2_USB_CTRL_PIPE_IN;
127		break;
128	case B2C2_USB_WRITE_V8_MEM:
129		wIndex |= pbBuffer[0];
130		request_type |= USB_DIR_OUT;
131		nWaitTime = B2C2_WAIT_FOR_OPERATION_V8WRITE;
132		pipe = B2C2_USB_CTRL_PIPE_OUT;
133		break;
134	case B2C2_USB_FLASH_BLOCK:
135		request_type |= USB_DIR_OUT;
136		nWaitTime = B2C2_WAIT_FOR_OPERATION_V8FLASH;
137		pipe = B2C2_USB_CTRL_PIPE_OUT;
138		break;
139	default:
140		deb_info("unsupported request for v8_mem_req %x.\n", req);
141		return -EINVAL;
142	}
143	deb_v8("v8mem: %02x %02x %04x %04x, len: %d\n", request_type, req,
144			wAddress, wIndex, buflen);
145
146	mutex_lock(&fc_usb->data_mutex);
147
148	if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)
149		memcpy(fc_usb->data, pbBuffer, buflen);
150
151	ret = usb_control_msg(fc_usb->udev, pipe,
152			req,
153			request_type,
154			wAddress,
155			wIndex,
156			fc_usb->data,
157			buflen,
158			nWaitTime);
159	if (ret != buflen)
160		ret = -EIO;
161
162	if (ret >= 0) {
163		ret = 0;
164		if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
165			memcpy(pbBuffer, fc_usb->data, buflen);
166	}
167
168	mutex_unlock(&fc_usb->data_mutex);
169
170	debug_dump(pbBuffer, ret, deb_v8);
171	return ret;
172}
173
174#define bytes_left_to_read_on_page(paddr, buflen) \
175	((V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)) > buflen \
176	 ? buflen : (V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)))
177
178static int flexcop_usb_memory_req(struct flexcop_usb *fc_usb,
179		flexcop_usb_request_t req, flexcop_usb_mem_page_t page_start,
180		u32 addr, int extended, u8 *buf, u32 len)
181{
182	int ret = 0;
183	u16 wMax;
184	u32 pagechunk = 0;
185
186	switch (req) {
187	case B2C2_USB_READ_V8_MEM:
188		wMax = USB_MEM_READ_MAX;
189		break;
190	case B2C2_USB_WRITE_V8_MEM:
191		wMax = USB_MEM_WRITE_MAX;
192		break;
193	case B2C2_USB_FLASH_BLOCK:
194		wMax = USB_FLASH_MAX;
195		break;
196	default:
197		return -EINVAL;
198	}
199	while (len) {
200		pagechunk = min(wMax, bytes_left_to_read_on_page(addr, len));
201		deb_info("%x\n",
202			(addr & V8_MEMORY_PAGE_MASK) |
203				(V8_MEMORY_EXTENDED*extended));
204
205		ret = flexcop_usb_v8_memory_req(fc_usb, req,
206			page_start + (addr / V8_MEMORY_PAGE_SIZE),
207			(addr & V8_MEMORY_PAGE_MASK) |
208				(V8_MEMORY_EXTENDED*extended),
209			buf, pagechunk);
210
211		if (ret < 0)
212			return ret;
213		addr += pagechunk;
214		buf += pagechunk;
215		len -= pagechunk;
216	}
217	return 0;
218}
219
220static int flexcop_usb_get_mac_addr(struct flexcop_device *fc, int extended)
221{
222	return flexcop_usb_memory_req(fc->bus_specific, B2C2_USB_READ_V8_MEM,
223		V8_MEMORY_PAGE_FLASH, 0x1f010, 1,
224		fc->dvb_adapter.proposed_mac, 6);
225}
226
227/* usb i2c stuff */
228static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
229		flexcop_usb_request_t req, flexcop_usb_i2c_function_t func,
230		u8 chipaddr, u8 addr, u8 *buf, u8 buflen)
231{
232	struct flexcop_usb *fc_usb = i2c->fc->bus_specific;
233	u16 wValue, wIndex;
234	int nWaitTime, pipe, ret;
235	u8 request_type = USB_TYPE_VENDOR;
236
237	if (buflen > sizeof(fc_usb->data)) {
238		err("Buffer size bigger than max URB control message\n");
239		return -EIO;
240	}
241
242	switch (func) {
243	case USB_FUNC_I2C_WRITE:
244	case USB_FUNC_I2C_MULTIWRITE:
245	case USB_FUNC_I2C_REPEATWRITE:
246		/* DKT 020208 - add this to support special case of DiSEqC */
247	case USB_FUNC_I2C_CHECKWRITE:
248		pipe = B2C2_USB_CTRL_PIPE_OUT;
249		nWaitTime = 2000;
250		request_type |= USB_DIR_OUT;
251		break;
252	case USB_FUNC_I2C_READ:
253	case USB_FUNC_I2C_REPEATREAD:
254		pipe = B2C2_USB_CTRL_PIPE_IN;
255		nWaitTime = 2000;
256		request_type |= USB_DIR_IN;
257		break;
258	default:
259		deb_info("unsupported function for i2c_req %x\n", func);
260		return -EINVAL;
261	}
262	wValue = (func << 8) | (i2c->port << 4);
263	wIndex = (chipaddr << 8 ) | addr;
264
265	deb_i2c("i2c %2d: %02x %02x %02x %02x %02x %02x\n",
266			func, request_type, req,
267			wValue & 0xff, wValue >> 8,
268			wIndex & 0xff, wIndex >> 8);
269
270	mutex_lock(&fc_usb->data_mutex);
271
272	if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)
273		memcpy(fc_usb->data, buf, buflen);
274
275	ret = usb_control_msg(fc_usb->udev, pipe,
276			req,
277			request_type,
278			wValue,
279			wIndex,
280			fc_usb->data,
281			buflen,
282			nWaitTime);
283
284	if (ret != buflen)
285		ret = -EIO;
286
287	if (ret >= 0) {
288		ret = 0;
289		if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
290			memcpy(buf, fc_usb->data, buflen);
291	}
292
293	mutex_unlock(&fc_usb->data_mutex);
294
295	return ret;
296}
297
298/* actual bus specific access functions,
299   make sure prototype are/will be equal to pci */
300static flexcop_ibi_value flexcop_usb_read_ibi_reg(struct flexcop_device *fc,
301	flexcop_ibi_register reg)
302{
303	flexcop_ibi_value val;
304	val.raw = 0;
305	flexcop_usb_readwrite_dw(fc, reg, &val.raw, 1);
306	return val;
307}
308
309static int flexcop_usb_write_ibi_reg(struct flexcop_device *fc,
310		flexcop_ibi_register reg, flexcop_ibi_value val)
311{
312	return flexcop_usb_readwrite_dw(fc, reg, &val.raw, 0);
313}
314
315static int flexcop_usb_i2c_request(struct flexcop_i2c_adapter *i2c,
316		flexcop_access_op_t op, u8 chipaddr, u8 addr, u8 *buf, u16 len)
317{
318	if (op == FC_READ)
319		return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
320				USB_FUNC_I2C_READ, chipaddr, addr, buf, len);
321	else
322		return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
323				USB_FUNC_I2C_WRITE, chipaddr, addr, buf, len);
324}
325
326static void flexcop_usb_process_frame(struct flexcop_usb *fc_usb,
327	u8 *buffer, int buffer_length)
328{
329	u8 *b;
330	int l;
331
332	deb_ts("tmp_buffer_length=%d, buffer_length=%d\n",
333		fc_usb->tmp_buffer_length, buffer_length);
334
335	if (fc_usb->tmp_buffer_length > 0) {
336		memcpy(fc_usb->tmp_buffer+fc_usb->tmp_buffer_length, buffer,
337				buffer_length);
338		fc_usb->tmp_buffer_length += buffer_length;
339		b = fc_usb->tmp_buffer;
340		l = fc_usb->tmp_buffer_length;
341	} else {
342		b = buffer;
343		l = buffer_length;
344	}
345
346	while (l >= 190) {
347		if (*b == 0xff) {
348			switch (*(b+1) & 0x03) {
349			case 0x01: /* media packet */
350				if (*(b+2) == 0x47)
351					flexcop_pass_dmx_packets(
352							fc_usb->fc_dev, b+2, 1);
353				else
354					deb_ts("not ts packet %*ph\n", 4, b+2);
355				b += 190;
356				l -= 190;
357				break;
358			default:
359				deb_ts("wrong packet type\n");
360				l = 0;
361				break;
362			}
363		} else {
364			deb_ts("wrong header\n");
365			l = 0;
366		}
367	}
368
369	if (l > 0)
370		memcpy(fc_usb->tmp_buffer, b, l);
371	fc_usb->tmp_buffer_length = l;
372}
373
374static void flexcop_usb_urb_complete(struct urb *urb)
375{
376	struct flexcop_usb *fc_usb = urb->context;
377	int i;
378
379	if (urb->actual_length > 0)
380		deb_ts("urb completed, bufsize: %d actlen; %d\n",
381			urb->transfer_buffer_length, urb->actual_length);
382
383	for (i = 0; i < urb->number_of_packets; i++) {
384		if (urb->iso_frame_desc[i].status < 0) {
385			err("iso frame descriptor %d has an error: %d\n", i,
386				urb->iso_frame_desc[i].status);
387		} else
388			if (urb->iso_frame_desc[i].actual_length > 0) {
389				deb_ts("passed %d bytes to the demux\n",
390					urb->iso_frame_desc[i].actual_length);
391
392				flexcop_usb_process_frame(fc_usb,
393					urb->transfer_buffer +
394						urb->iso_frame_desc[i].offset,
395					urb->iso_frame_desc[i].actual_length);
396			}
397		urb->iso_frame_desc[i].status = 0;
398		urb->iso_frame_desc[i].actual_length = 0;
399	}
400	usb_submit_urb(urb, GFP_ATOMIC);
401}
402
403static int flexcop_usb_stream_control(struct flexcop_device *fc, int onoff)
404{
405	/* submit/kill iso packets */
406	return 0;
407}
408
409static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
410{
411	int i;
412	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
413		if (fc_usb->iso_urb[i] != NULL) {
414			deb_ts("unlinking/killing urb no. %d\n", i);
415			usb_kill_urb(fc_usb->iso_urb[i]);
416			usb_free_urb(fc_usb->iso_urb[i]);
417		}
418
419	usb_free_coherent(fc_usb->udev, fc_usb->buffer_size,
420			  fc_usb->iso_buffer, fc_usb->dma_addr);
421
422}
423
424static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
425{
426	struct usb_host_interface *alt = fc_usb->uintf->cur_altsetting;
427	u16 frame_size;
428	int bufsize, i, j, ret;
429	int buffer_offset = 0;
430
431	frame_size = usb_endpoint_maxp(&alt->endpoint[0].desc);
432	bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO * frame_size;
433
434	deb_ts("creating %d iso-urbs with %d frames each of %d bytes size = %d.\n",
435	       B2C2_USB_NUM_ISO_URB,
436			B2C2_USB_FRAMES_PER_ISO, frame_size, bufsize);
437
438	fc_usb->iso_buffer = usb_alloc_coherent(fc_usb->udev,
439			bufsize, GFP_KERNEL, &fc_usb->dma_addr);
440	if (fc_usb->iso_buffer == NULL)
441		return -ENOMEM;
442
443	memset(fc_usb->iso_buffer, 0, bufsize);
444	fc_usb->buffer_size = bufsize;
445
446	/* creating iso urbs */
447	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
448		fc_usb->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,
449			GFP_KERNEL);
450		if (fc_usb->iso_urb[i] == NULL) {
451			ret = -ENOMEM;
452			goto urb_error;
453		}
454	}
455
456	/* initialising and submitting iso urbs */
457	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
458		int frame_offset = 0;
459		struct urb *urb = fc_usb->iso_urb[i];
460		deb_ts("initializing and submitting urb no. %d (buf_offset: %d).\n",
461		       i, buffer_offset);
462
463		urb->dev = fc_usb->udev;
464		urb->context = fc_usb;
465		urb->complete = flexcop_usb_urb_complete;
466		urb->pipe = B2C2_USB_DATA_PIPE;
467		urb->transfer_flags = URB_ISO_ASAP;
468		urb->interval = 1;
469		urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
470		urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
471		urb->transfer_buffer = fc_usb->iso_buffer + buffer_offset;
472
473		buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
474		for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
475			deb_ts("urb no: %d, frame: %d, frame_offset: %d\n",
476					i, j, frame_offset);
477			urb->iso_frame_desc[j].offset = frame_offset;
478			urb->iso_frame_desc[j].length = frame_size;
479			frame_offset += frame_size;
480		}
481
482		if ((ret = usb_submit_urb(fc_usb->iso_urb[i],GFP_KERNEL))) {
483			err("submitting urb %d failed with %d.", i, ret);
484			goto urb_error;
485		}
486		deb_ts("submitted urb no. %d.\n", i);
487	}
488
489	/* SRAM */
490	flexcop_sram_set_dest(fc_usb->fc_dev, FC_SRAM_DEST_MEDIA |
491			FC_SRAM_DEST_NET | FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI,
492			FC_SRAM_DEST_TARGET_WAN_USB);
493	flexcop_wan_set_speed(fc_usb->fc_dev, FC_WAN_SPEED_8MBITS);
494	flexcop_sram_ctrl(fc_usb->fc_dev, 1, 1, 1);
495	return 0;
496
497urb_error:
498	flexcop_usb_transfer_exit(fc_usb);
499	return ret;
500}
501
502static int flexcop_usb_init(struct flexcop_usb *fc_usb)
503{
504	struct usb_host_interface *alt;
505	int ret;
506
507	/* use the alternate setting with the largest buffer */
508	ret = usb_set_interface(fc_usb->udev, 0, 1);
509	if (ret) {
510		err("set interface failed.");
511		return ret;
512	}
513
514	alt = fc_usb->uintf->cur_altsetting;
515
516	if (alt->desc.bNumEndpoints < 2)
517		return -ENODEV;
518	if (!usb_endpoint_is_isoc_in(&alt->endpoint[0].desc))
519		return -ENODEV;
520
521	switch (fc_usb->udev->speed) {
522	case USB_SPEED_LOW:
523		err("cannot handle USB speed because it is too slow.");
524		return -ENODEV;
525		break;
526	case USB_SPEED_FULL:
527		info("running at FULL speed.");
528		break;
529	case USB_SPEED_HIGH:
530		info("running at HIGH speed.");
531		break;
532	case USB_SPEED_SUPER:
533		info("running at SUPER speed.");
534		break;
535	case USB_SPEED_SUPER_PLUS:
536		info("running at SUPER+ speed.");
537		break;
538	case USB_SPEED_UNKNOWN:
539	default:
540		err("cannot handle USB speed because it is unknown.");
541		return -ENODEV;
542	}
543	usb_set_intfdata(fc_usb->uintf, fc_usb);
544	return 0;
545}
546
547static void flexcop_usb_exit(struct flexcop_usb *fc_usb)
548{
549	usb_set_intfdata(fc_usb->uintf, NULL);
550}
551
552static int flexcop_usb_probe(struct usb_interface *intf,
553		const struct usb_device_id *id)
554{
555	struct usb_device *udev = interface_to_usbdev(intf);
556	struct flexcop_usb *fc_usb = NULL;
557	struct flexcop_device *fc = NULL;
558	int ret;
559
560	if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
561		err("out of memory\n");
562		return -ENOMEM;
563	}
564
565	/* general flexcop init */
566	fc_usb = fc->bus_specific;
567	fc_usb->fc_dev = fc;
568	mutex_init(&fc_usb->data_mutex);
569
570	fc->read_ibi_reg  = flexcop_usb_read_ibi_reg;
571	fc->write_ibi_reg = flexcop_usb_write_ibi_reg;
572	fc->i2c_request = flexcop_usb_i2c_request;
573	fc->get_mac_addr = flexcop_usb_get_mac_addr;
574
575	fc->stream_control = flexcop_usb_stream_control;
576
577	fc->pid_filtering = 1;
578	fc->bus_type = FC_USB;
579
580	fc->dev = &udev->dev;
581	fc->owner = THIS_MODULE;
582
583	/* bus specific part */
584	fc_usb->udev = udev;
585	fc_usb->uintf = intf;
586	if ((ret = flexcop_usb_init(fc_usb)) != 0)
587		goto err_kfree;
588
589	/* init flexcop */
590	if ((ret = flexcop_device_initialize(fc)) != 0)
591		goto err_usb_exit;
592
593	/* xfer init */
594	if ((ret = flexcop_usb_transfer_init(fc_usb)) != 0)
595		goto err_fc_exit;
596
597	info("%s successfully initialized and connected.", DRIVER_NAME);
598	return 0;
599
600err_fc_exit:
601	flexcop_device_exit(fc);
602err_usb_exit:
603	flexcop_usb_exit(fc_usb);
604err_kfree:
605	flexcop_device_kfree(fc);
606	return ret;
607}
608
609static void flexcop_usb_disconnect(struct usb_interface *intf)
610{
611	struct flexcop_usb *fc_usb = usb_get_intfdata(intf);
612	flexcop_usb_transfer_exit(fc_usb);
613	flexcop_device_exit(fc_usb->fc_dev);
614	flexcop_usb_exit(fc_usb);
615	flexcop_device_kfree(fc_usb->fc_dev);
616	info("%s successfully deinitialized and disconnected.", DRIVER_NAME);
617}
618
619static const struct usb_device_id flexcop_usb_table[] = {
620	{ USB_DEVICE(0x0af7, 0x0101) },
621	{ }
622};
623MODULE_DEVICE_TABLE (usb, flexcop_usb_table);
624
625/* usb specific object needed to register this driver with the usb subsystem */
626static struct usb_driver flexcop_usb_driver = {
627	.name		= "b2c2_flexcop_usb",
628	.probe		= flexcop_usb_probe,
629	.disconnect = flexcop_usb_disconnect,
630	.id_table	= flexcop_usb_table,
631};
632
633module_usb_driver(flexcop_usb_driver);
634
635MODULE_AUTHOR(DRIVER_AUTHOR);
636MODULE_DESCRIPTION(DRIVER_NAME);
637MODULE_LICENSE("GPL");