Version:  2.0.40 2.2.26 2.4.37 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9

Linux/drivers/media/usb/b2c2/flexcop-usb.c

  1 /*
  2  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  3  * flexcop-usb.c - covers the USB part
  4  * see flexcop.c for copyright information
  5  */
  6 #define FC_LOG_PREFIX "flexcop_usb"
  7 #include "flexcop-usb.h"
  8 #include "flexcop-common.h"
  9 
 10 /* Version information */
 11 #define DRIVER_VERSION "0.1"
 12 #define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV USB Driver"
 13 #define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@posteo.de>"
 14 
 15 /* debug */
 16 #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
 17 #define dprintk(level,args...) \
 18         do { if ((debug & level)) printk(args); } while (0)
 19 
 20 #define debug_dump(b, l, method) do {\
 21         int i; \
 22         for (i = 0; i < l; i++) \
 23                 method("%02x ", b[i]); \
 24         method("\n"); \
 25 } while (0)
 26 
 27 #define DEBSTATUS ""
 28 #else
 29 #define dprintk(level, args...)
 30 #define debug_dump(b, l, method)
 31 #define DEBSTATUS " (debugging is not enabled)"
 32 #endif
 33 
 34 static int debug;
 35 module_param(debug, int, 0644);
 36 MODULE_PARM_DESC(debug, "set debugging level (1=info,ts=2,"
 37                 "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  */
 69 static 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 * HZ);
 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  */
108 static 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 * HZ);
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 
178 static 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 i,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                 break;
199         }
200         for (i = 0; i < len;) {
201                 pagechunk =
202                         wMax < bytes_left_to_read_on_page(addr, len) ?
203                                 wMax :
204                                 bytes_left_to_read_on_page(addr, len);
205                 deb_info("%x\n",
206                         (addr & V8_MEMORY_PAGE_MASK) |
207                                 (V8_MEMORY_EXTENDED*extended));
208 
209                 ret = flexcop_usb_v8_memory_req(fc_usb, req,
210                         page_start + (addr / V8_MEMORY_PAGE_SIZE),
211                         (addr & V8_MEMORY_PAGE_MASK) |
212                                 (V8_MEMORY_EXTENDED*extended),
213                         &buf[i], pagechunk);
214 
215                 if (ret < 0)
216                         return ret;
217                 addr += pagechunk;
218                 len -= pagechunk;
219         }
220         return 0;
221 }
222 
223 static int flexcop_usb_get_mac_addr(struct flexcop_device *fc, int extended)
224 {
225         return flexcop_usb_memory_req(fc->bus_specific, B2C2_USB_READ_V8_MEM,
226                 V8_MEMORY_PAGE_FLASH, 0x1f010, 1,
227                 fc->dvb_adapter.proposed_mac, 6);
228 }
229 
230 /* usb i2c stuff */
231 static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
232                 flexcop_usb_request_t req, flexcop_usb_i2c_function_t func,
233                 u8 chipaddr, u8 addr, u8 *buf, u8 buflen)
234 {
235         struct flexcop_usb *fc_usb = i2c->fc->bus_specific;
236         u16 wValue, wIndex;
237         int nWaitTime, pipe, ret;
238         u8 request_type = USB_TYPE_VENDOR;
239 
240         if (buflen > sizeof(fc_usb->data)) {
241                 err("Buffer size bigger than max URB control message\n");
242                 return -EIO;
243         }
244 
245         switch (func) {
246         case USB_FUNC_I2C_WRITE:
247         case USB_FUNC_I2C_MULTIWRITE:
248         case USB_FUNC_I2C_REPEATWRITE:
249                 /* DKT 020208 - add this to support special case of DiSEqC */
250         case USB_FUNC_I2C_CHECKWRITE:
251                 pipe = B2C2_USB_CTRL_PIPE_OUT;
252                 nWaitTime = 2;
253                 request_type |= USB_DIR_OUT;
254                 break;
255         case USB_FUNC_I2C_READ:
256         case USB_FUNC_I2C_REPEATREAD:
257                 pipe = B2C2_USB_CTRL_PIPE_IN;
258                 nWaitTime = 2;
259                 request_type |= USB_DIR_IN;
260                 break;
261         default:
262                 deb_info("unsupported function for i2c_req %x\n", func);
263                 return -EINVAL;
264         }
265         wValue = (func << 8) | (i2c->port << 4);
266         wIndex = (chipaddr << 8 ) | addr;
267 
268         deb_i2c("i2c %2d: %02x %02x %02x %02x %02x %02x\n",
269                         func, request_type, req,
270                         wValue & 0xff, wValue >> 8,
271                         wIndex & 0xff, wIndex >> 8);
272 
273         mutex_lock(&fc_usb->data_mutex);
274 
275         if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)
276                 memcpy(fc_usb->data, buf, buflen);
277 
278         ret = usb_control_msg(fc_usb->udev, pipe,
279                         req,
280                         request_type,
281                         wValue,
282                         wIndex,
283                         fc_usb->data,
284                         buflen,
285                         nWaitTime * HZ);
286 
287         if (ret != buflen)
288                 ret = -EIO;
289 
290         if (ret >= 0) {
291                 ret = 0;
292                 if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
293                         memcpy(buf, fc_usb->data, buflen);
294         }
295 
296         mutex_unlock(&fc_usb->data_mutex);
297 
298         return 0;
299 }
300 
301 /* actual bus specific access functions,
302    make sure prototype are/will be equal to pci */
303 static flexcop_ibi_value flexcop_usb_read_ibi_reg(struct flexcop_device *fc,
304         flexcop_ibi_register reg)
305 {
306         flexcop_ibi_value val;
307         val.raw = 0;
308         flexcop_usb_readwrite_dw(fc, reg, &val.raw, 1);
309         return val;
310 }
311 
312 static int flexcop_usb_write_ibi_reg(struct flexcop_device *fc,
313                 flexcop_ibi_register reg, flexcop_ibi_value val)
314 {
315         return flexcop_usb_readwrite_dw(fc, reg, &val.raw, 0);
316 }
317 
318 static int flexcop_usb_i2c_request(struct flexcop_i2c_adapter *i2c,
319                 flexcop_access_op_t op, u8 chipaddr, u8 addr, u8 *buf, u16 len)
320 {
321         if (op == FC_READ)
322                 return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
323                                 USB_FUNC_I2C_READ, chipaddr, addr, buf, len);
324         else
325                 return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
326                                 USB_FUNC_I2C_WRITE, chipaddr, addr, buf, len);
327 }
328 
329 static void flexcop_usb_process_frame(struct flexcop_usb *fc_usb,
330         u8 *buffer, int buffer_length)
331 {
332         u8 *b;
333         int l;
334 
335         deb_ts("tmp_buffer_length=%d, buffer_length=%d\n",
336                 fc_usb->tmp_buffer_length, buffer_length);
337 
338         if (fc_usb->tmp_buffer_length > 0) {
339                 memcpy(fc_usb->tmp_buffer+fc_usb->tmp_buffer_length, buffer,
340                                 buffer_length);
341                 fc_usb->tmp_buffer_length += buffer_length;
342                 b = fc_usb->tmp_buffer;
343                 l = fc_usb->tmp_buffer_length;
344         } else {
345                 b=buffer;
346                 l=buffer_length;
347         }
348 
349         while (l >= 190) {
350                 if (*b == 0xff) {
351                         switch (*(b+1) & 0x03) {
352                         case 0x01: /* media packet */
353                                 if (*(b+2) == 0x47)
354                                         flexcop_pass_dmx_packets(
355                                                         fc_usb->fc_dev, b+2, 1);
356                                 else
357                                         deb_ts("not ts packet %*ph\n", 4, b+2);
358                                 b += 190;
359                                 l -= 190;
360                                 break;
361                         default:
362                                 deb_ts("wrong packet type\n");
363                                 l = 0;
364                                 break;
365                         }
366                 } else {
367                         deb_ts("wrong header\n");
368                         l = 0;
369                 }
370         }
371 
372         if (l>0)
373                 memcpy(fc_usb->tmp_buffer, b, l);
374         fc_usb->tmp_buffer_length = l;
375 }
376 
377 static void flexcop_usb_urb_complete(struct urb *urb)
378 {
379         struct flexcop_usb *fc_usb = urb->context;
380         int i;
381 
382         if (urb->actual_length > 0)
383                 deb_ts("urb completed, bufsize: %d actlen; %d\n",
384                         urb->transfer_buffer_length, urb->actual_length);
385 
386         for (i = 0; i < urb->number_of_packets; i++) {
387                 if (urb->iso_frame_desc[i].status < 0) {
388                         err("iso frame descriptor %d has an error: %d\n", i,
389                                 urb->iso_frame_desc[i].status);
390                 } else
391                         if (urb->iso_frame_desc[i].actual_length > 0) {
392                                 deb_ts("passed %d bytes to the demux\n",
393                                         urb->iso_frame_desc[i].actual_length);
394 
395                                 flexcop_usb_process_frame(fc_usb,
396                                         urb->transfer_buffer +
397                                                 urb->iso_frame_desc[i].offset,
398                                         urb->iso_frame_desc[i].actual_length);
399                         }
400                 urb->iso_frame_desc[i].status = 0;
401                 urb->iso_frame_desc[i].actual_length = 0;
402         }
403         usb_submit_urb(urb,GFP_ATOMIC);
404 }
405 
406 static int flexcop_usb_stream_control(struct flexcop_device *fc, int onoff)
407 {
408         /* submit/kill iso packets */
409         return 0;
410 }
411 
412 static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
413 {
414         int i;
415         for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
416                 if (fc_usb->iso_urb[i] != NULL) {
417                         deb_ts("unlinking/killing urb no. %d\n",i);
418                         usb_kill_urb(fc_usb->iso_urb[i]);
419                         usb_free_urb(fc_usb->iso_urb[i]);
420                 }
421 
422         if (fc_usb->iso_buffer != NULL)
423                 usb_free_coherent(fc_usb->udev,
424                         fc_usb->buffer_size, fc_usb->iso_buffer,
425                         fc_usb->dma_addr);
426 }
427 
428 static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
429 {
430         u16 frame_size = le16_to_cpu(
431                 fc_usb->uintf->cur_altsetting->endpoint[0].desc.wMaxPacketSize);
432         int bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO *
433                 frame_size, i, j, ret;
434         int buffer_offset = 0;
435 
436         deb_ts("creating %d iso-urbs with %d frames "
437                         "each of %d bytes size = %d.\n", B2C2_USB_NUM_ISO_URB,
438                         B2C2_USB_FRAMES_PER_ISO, frame_size, bufsize);
439 
440         fc_usb->iso_buffer = usb_alloc_coherent(fc_usb->udev,
441                         bufsize, GFP_KERNEL, &fc_usb->dma_addr);
442         if (fc_usb->iso_buffer == NULL)
443                 return -ENOMEM;
444 
445         memset(fc_usb->iso_buffer, 0, bufsize);
446         fc_usb->buffer_size = bufsize;
447 
448         /* creating iso urbs */
449         for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
450                 fc_usb->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,
451                         GFP_ATOMIC);
452                 if (fc_usb->iso_urb[i] == NULL) {
453                         ret = -ENOMEM;
454                         goto urb_error;
455                 }
456         }
457 
458         /* initialising and submitting iso urbs */
459         for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
460                 int frame_offset = 0;
461                 struct urb *urb = fc_usb->iso_urb[i];
462                 deb_ts("initializing and submitting urb no. %d "
463                         "(buf_offset: %d).\n", i, buffer_offset);
464 
465                 urb->dev = fc_usb->udev;
466                 urb->context = fc_usb;
467                 urb->complete = flexcop_usb_urb_complete;
468                 urb->pipe = B2C2_USB_DATA_PIPE;
469                 urb->transfer_flags = URB_ISO_ASAP;
470                 urb->interval = 1;
471                 urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
472                 urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
473                 urb->transfer_buffer = fc_usb->iso_buffer + buffer_offset;
474 
475                 buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
476                 for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
477                         deb_ts("urb no: %d, frame: %d, frame_offset: %d\n",
478                                         i, j, frame_offset);
479                         urb->iso_frame_desc[j].offset = frame_offset;
480                         urb->iso_frame_desc[j].length = frame_size;
481                         frame_offset += frame_size;
482                 }
483 
484                 if ((ret = usb_submit_urb(fc_usb->iso_urb[i],GFP_ATOMIC))) {
485                         err("submitting urb %d failed with %d.", i, ret);
486                         goto urb_error;
487                 }
488                 deb_ts("submitted urb no. %d.\n",i);
489         }
490 
491         /* SRAM */
492         flexcop_sram_set_dest(fc_usb->fc_dev, FC_SRAM_DEST_MEDIA |
493                         FC_SRAM_DEST_NET | FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI,
494                         FC_SRAM_DEST_TARGET_WAN_USB);
495         flexcop_wan_set_speed(fc_usb->fc_dev, FC_WAN_SPEED_8MBITS);
496         flexcop_sram_ctrl(fc_usb->fc_dev, 1, 1, 1);
497         return 0;
498 
499 urb_error:
500         flexcop_usb_transfer_exit(fc_usb);
501         return ret;
502 }
503 
504 static int flexcop_usb_init(struct flexcop_usb *fc_usb)
505 {
506         /* use the alternate setting with the larges buffer */
507         usb_set_interface(fc_usb->udev,0,1);
508         switch (fc_usb->udev->speed) {
509         case USB_SPEED_LOW:
510                 err("cannot handle USB speed because it is too slow.");
511                 return -ENODEV;
512                 break;
513         case USB_SPEED_FULL:
514                 info("running at FULL speed.");
515                 break;
516         case USB_SPEED_HIGH:
517                 info("running at HIGH speed.");
518                 break;
519         case USB_SPEED_UNKNOWN: /* fall through */
520         default:
521                 err("cannot handle USB speed because it is unknown.");
522                 return -ENODEV;
523         }
524         usb_set_intfdata(fc_usb->uintf, fc_usb);
525         return 0;
526 }
527 
528 static void flexcop_usb_exit(struct flexcop_usb *fc_usb)
529 {
530         usb_set_intfdata(fc_usb->uintf, NULL);
531 }
532 
533 static int flexcop_usb_probe(struct usb_interface *intf,
534                 const struct usb_device_id *id)
535 {
536         struct usb_device *udev = interface_to_usbdev(intf);
537         struct flexcop_usb *fc_usb = NULL;
538         struct flexcop_device *fc = NULL;
539         int ret;
540 
541         if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
542                 err("out of memory\n");
543                 return -ENOMEM;
544         }
545 
546         /* general flexcop init */
547         fc_usb = fc->bus_specific;
548         fc_usb->fc_dev = fc;
549         mutex_init(&fc_usb->data_mutex);
550 
551         fc->read_ibi_reg  = flexcop_usb_read_ibi_reg;
552         fc->write_ibi_reg = flexcop_usb_write_ibi_reg;
553         fc->i2c_request = flexcop_usb_i2c_request;
554         fc->get_mac_addr = flexcop_usb_get_mac_addr;
555 
556         fc->stream_control = flexcop_usb_stream_control;
557 
558         fc->pid_filtering = 1;
559         fc->bus_type = FC_USB;
560 
561         fc->dev = &udev->dev;
562         fc->owner = THIS_MODULE;
563 
564         /* bus specific part */
565         fc_usb->udev = udev;
566         fc_usb->uintf = intf;
567         if ((ret = flexcop_usb_init(fc_usb)) != 0)
568                 goto err_kfree;
569 
570         /* init flexcop */
571         if ((ret = flexcop_device_initialize(fc)) != 0)
572                 goto err_usb_exit;
573 
574         /* xfer init */
575         if ((ret = flexcop_usb_transfer_init(fc_usb)) != 0)
576                 goto err_fc_exit;
577 
578         info("%s successfully initialized and connected.", DRIVER_NAME);
579         return 0;
580 
581 err_fc_exit:
582         flexcop_device_exit(fc);
583 err_usb_exit:
584         flexcop_usb_exit(fc_usb);
585 err_kfree:
586         flexcop_device_kfree(fc);
587         return ret;
588 }
589 
590 static void flexcop_usb_disconnect(struct usb_interface *intf)
591 {
592         struct flexcop_usb *fc_usb = usb_get_intfdata(intf);
593         flexcop_usb_transfer_exit(fc_usb);
594         flexcop_device_exit(fc_usb->fc_dev);
595         flexcop_usb_exit(fc_usb);
596         flexcop_device_kfree(fc_usb->fc_dev);
597         info("%s successfully deinitialized and disconnected.", DRIVER_NAME);
598 }
599 
600 static struct usb_device_id flexcop_usb_table [] = {
601         { USB_DEVICE(0x0af7, 0x0101) },
602         { }
603 };
604 MODULE_DEVICE_TABLE (usb, flexcop_usb_table);
605 
606 /* usb specific object needed to register this driver with the usb subsystem */
607 static struct usb_driver flexcop_usb_driver = {
608         .name           = "b2c2_flexcop_usb",
609         .probe          = flexcop_usb_probe,
610         .disconnect = flexcop_usb_disconnect,
611         .id_table       = flexcop_usb_table,
612 };
613 
614 module_usb_driver(flexcop_usb_driver);
615 
616 MODULE_AUTHOR(DRIVER_AUTHOR);
617 MODULE_DESCRIPTION(DRIVER_NAME);
618 MODULE_LICENSE("GPL");
619 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us