Version:  2.0.40 2.2.26 2.4.37 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 4.10

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,ctrl=4,i2c=8,v8mem=16 (or-able))." DEBSTATUS);
 37 #undef DEBSTATUS
 38 
 39 #define deb_info(args...) dprintk(0x01, args)
 40 #define deb_ts(args...) dprintk(0x02, args)
 41 #define deb_ctrl(args...) dprintk(0x04, args)
 42 #define deb_i2c(args...) dprintk(0x08, args)
 43 #define deb_v8(args...) dprintk(0x10, args)
 44 
 45 /* JLP 111700: we will include the 1 bit gap between the upper and lower 3 bits
 46  * in the IBI address, to make the V8 code simpler.
 47  * PCI ADDRESS FORMAT: 0x71C -> 0000 0111 0001 1100 (the six bits used)
 48  *                  in general: 0000 0HHH 000L LL00
 49  * IBI ADDRESS FORMAT:                    RHHH BLLL
 50  *
 51  * where R is the read(1)/write(0) bit, B is the busy bit
 52  * and HHH and LLL are the two sets of three bits from the PCI address.
 53  */
 54 #define B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(usPCI) (u8) \
 55         (((usPCI >> 2) & 0x07) + ((usPCI >> 4) & 0x70))
 56 #define B2C2_FLEX_INTERNALADDR_TO_PCIOFFSET(ucAddr) (u16) \
 57         (((ucAddr & 0x07) << 2) + ((ucAddr & 0x70) << 4))
 58 
 59 /*
 60  * DKT 020228
 61  * - forget about this VENDOR_BUFFER_SIZE, read and write register
 62  *   deal with DWORD or 4 bytes, that should be should from now on
 63  * - from now on, we don't support anything older than firm 1.00
 64  *   I eliminated the write register as a 2 trip of writing hi word and lo word
 65  *   and force this to write only 4 bytes at a time.
 66  *   NOTE: this should work with all the firmware from 1.00 and newer
 67  */
 68 static int flexcop_usb_readwrite_dw(struct flexcop_device *fc, u16 wRegOffsPCI, u32 *val, u8 read)
 69 {
 70         struct flexcop_usb *fc_usb = fc->bus_specific;
 71         u8 request = read ? B2C2_USB_READ_REG : B2C2_USB_WRITE_REG;
 72         u8 request_type = (read ? USB_DIR_IN : USB_DIR_OUT) | USB_TYPE_VENDOR;
 73         u8 wAddress = B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(wRegOffsPCI) |
 74                 (read ? 0x80 : 0);
 75         int ret;
 76 
 77         mutex_lock(&fc_usb->data_mutex);
 78         if (!read)
 79                 memcpy(fc_usb->data, val, sizeof(*val));
 80 
 81         ret = usb_control_msg(fc_usb->udev,
 82                         read ? B2C2_USB_CTRL_PIPE_IN : B2C2_USB_CTRL_PIPE_OUT,
 83                         request,
 84                         request_type, /* 0xc0 read or 0x40 write */
 85                         wAddress,
 86                         0,
 87                         fc_usb->data,
 88                         sizeof(u32),
 89                         B2C2_WAIT_FOR_OPERATION_RDW * HZ);
 90 
 91         if (ret != sizeof(u32)) {
 92                 err("error while %s dword from %d (%d).", read ? "reading" :
 93                                 "writing", wAddress, wRegOffsPCI);
 94                 if (ret >= 0)
 95                         ret = -EIO;
 96         }
 97 
 98         if (read && ret >= 0)
 99                 memcpy(val, fc_usb->data, sizeof(*val));
100         mutex_unlock(&fc_usb->data_mutex);
101 
102         return ret;
103 }
104 /*
105  * DKT 010817 - add support for V8 memory read/write and flash update
106  */
107 static int flexcop_usb_v8_memory_req(struct flexcop_usb *fc_usb,
108                 flexcop_usb_request_t req, u8 page, u16 wAddress,
109                 u8 *pbBuffer, u32 buflen)
110 {
111         u8 request_type = USB_TYPE_VENDOR;
112         u16 wIndex;
113         int nWaitTime, pipe, ret;
114         wIndex = page << 8;
115 
116         if (buflen > sizeof(fc_usb->data)) {
117                 err("Buffer size bigger than max URB control message\n");
118                 return -EIO;
119         }
120 
121         switch (req) {
122         case B2C2_USB_READ_V8_MEM:
123                 nWaitTime = B2C2_WAIT_FOR_OPERATION_V8READ;
124                 request_type |= USB_DIR_IN;
125                 pipe = B2C2_USB_CTRL_PIPE_IN;
126                 break;
127         case B2C2_USB_WRITE_V8_MEM:
128                 wIndex |= pbBuffer[0];
129                 request_type |= USB_DIR_OUT;
130                 nWaitTime = B2C2_WAIT_FOR_OPERATION_V8WRITE;
131                 pipe = B2C2_USB_CTRL_PIPE_OUT;
132                 break;
133         case B2C2_USB_FLASH_BLOCK:
134                 request_type |= USB_DIR_OUT;
135                 nWaitTime = B2C2_WAIT_FOR_OPERATION_V8FLASH;
136                 pipe = B2C2_USB_CTRL_PIPE_OUT;
137                 break;
138         default:
139                 deb_info("unsupported request for v8_mem_req %x.\n", req);
140                 return -EINVAL;
141         }
142         deb_v8("v8mem: %02x %02x %04x %04x, len: %d\n", request_type, req,
143                         wAddress, wIndex, buflen);
144 
145         mutex_lock(&fc_usb->data_mutex);
146 
147         if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)
148                 memcpy(fc_usb->data, pbBuffer, buflen);
149 
150         ret = usb_control_msg(fc_usb->udev, pipe,
151                         req,
152                         request_type,
153                         wAddress,
154                         wIndex,
155                         fc_usb->data,
156                         buflen,
157                         nWaitTime * HZ);
158         if (ret != buflen)
159                 ret = -EIO;
160 
161         if (ret >= 0) {
162                 ret = 0;
163                 if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
164                         memcpy(pbBuffer, fc_usb->data, buflen);
165         }
166 
167         mutex_unlock(&fc_usb->data_mutex);
168 
169         debug_dump(pbBuffer, ret, deb_v8);
170         return ret;
171 }
172 
173 #define bytes_left_to_read_on_page(paddr,buflen) \
174         ((V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)) > buflen \
175          ? buflen : (V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)))
176 
177 static int flexcop_usb_memory_req(struct flexcop_usb *fc_usb,
178                 flexcop_usb_request_t req, flexcop_usb_mem_page_t page_start,
179                 u32 addr, int extended, u8 *buf, u32 len)
180 {
181         int i,ret = 0;
182         u16 wMax;
183         u32 pagechunk = 0;
184 
185         switch(req) {
186         case B2C2_USB_READ_V8_MEM:
187                 wMax = USB_MEM_READ_MAX;
188                 break;
189         case B2C2_USB_WRITE_V8_MEM:
190                 wMax = USB_MEM_WRITE_MAX;
191                 break;
192         case B2C2_USB_FLASH_BLOCK:
193                 wMax = USB_FLASH_MAX;
194                 break;
195         default:
196                 return -EINVAL;
197                 break;
198         }
199         for (i = 0; i < len;) {
200                 pagechunk =
201                         wMax < bytes_left_to_read_on_page(addr, len) ?
202                                 wMax :
203                                 bytes_left_to_read_on_page(addr, len);
204                 deb_info("%x\n",
205                         (addr & V8_MEMORY_PAGE_MASK) |
206                                 (V8_MEMORY_EXTENDED*extended));
207 
208                 ret = flexcop_usb_v8_memory_req(fc_usb, req,
209                         page_start + (addr / V8_MEMORY_PAGE_SIZE),
210                         (addr & V8_MEMORY_PAGE_MASK) |
211                                 (V8_MEMORY_EXTENDED*extended),
212                         &buf[i], pagechunk);
213 
214                 if (ret < 0)
215                         return ret;
216                 addr += pagechunk;
217                 len -= pagechunk;
218         }
219         return 0;
220 }
221 
222 static int flexcop_usb_get_mac_addr(struct flexcop_device *fc, int extended)
223 {
224         return flexcop_usb_memory_req(fc->bus_specific, B2C2_USB_READ_V8_MEM,
225                 V8_MEMORY_PAGE_FLASH, 0x1f010, 1,
226                 fc->dvb_adapter.proposed_mac, 6);
227 }
228 
229 /* usb i2c stuff */
230 static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
231                 flexcop_usb_request_t req, flexcop_usb_i2c_function_t func,
232                 u8 chipaddr, u8 addr, u8 *buf, u8 buflen)
233 {
234         struct flexcop_usb *fc_usb = i2c->fc->bus_specific;
235         u16 wValue, wIndex;
236         int nWaitTime, pipe, ret;
237         u8 request_type = USB_TYPE_VENDOR;
238 
239         if (buflen > sizeof(fc_usb->data)) {
240                 err("Buffer size bigger than max URB control message\n");
241                 return -EIO;
242         }
243 
244         switch (func) {
245         case USB_FUNC_I2C_WRITE:
246         case USB_FUNC_I2C_MULTIWRITE:
247         case USB_FUNC_I2C_REPEATWRITE:
248                 /* DKT 020208 - add this to support special case of DiSEqC */
249         case USB_FUNC_I2C_CHECKWRITE:
250                 pipe = B2C2_USB_CTRL_PIPE_OUT;
251                 nWaitTime = 2;
252                 request_type |= USB_DIR_OUT;
253                 break;
254         case USB_FUNC_I2C_READ:
255         case USB_FUNC_I2C_REPEATREAD:
256                 pipe = B2C2_USB_CTRL_PIPE_IN;
257                 nWaitTime = 2;
258                 request_type |= USB_DIR_IN;
259                 break;
260         default:
261                 deb_info("unsupported function for i2c_req %x\n", func);
262                 return -EINVAL;
263         }
264         wValue = (func << 8) | (i2c->port << 4);
265         wIndex = (chipaddr << 8 ) | addr;
266 
267         deb_i2c("i2c %2d: %02x %02x %02x %02x %02x %02x\n",
268                         func, request_type, req,
269                         wValue & 0xff, wValue >> 8,
270                         wIndex & 0xff, wIndex >> 8);
271 
272         mutex_lock(&fc_usb->data_mutex);
273 
274         if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)
275                 memcpy(fc_usb->data, buf, buflen);
276 
277         ret = usb_control_msg(fc_usb->udev, pipe,
278                         req,
279                         request_type,
280                         wValue,
281                         wIndex,
282                         fc_usb->data,
283                         buflen,
284                         nWaitTime * HZ);
285 
286         if (ret != buflen)
287                 ret = -EIO;
288 
289         if (ret >= 0) {
290                 ret = 0;
291                 if ((request_type & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
292                         memcpy(buf, fc_usb->data, buflen);
293         }
294 
295         mutex_unlock(&fc_usb->data_mutex);
296 
297         return 0;
298 }
299 
300 /* actual bus specific access functions,
301    make sure prototype are/will be equal to pci */
302 static flexcop_ibi_value flexcop_usb_read_ibi_reg(struct flexcop_device *fc,
303         flexcop_ibi_register reg)
304 {
305         flexcop_ibi_value val;
306         val.raw = 0;
307         flexcop_usb_readwrite_dw(fc, reg, &val.raw, 1);
308         return val;
309 }
310 
311 static int flexcop_usb_write_ibi_reg(struct flexcop_device *fc,
312                 flexcop_ibi_register reg, flexcop_ibi_value val)
313 {
314         return flexcop_usb_readwrite_dw(fc, reg, &val.raw, 0);
315 }
316 
317 static int flexcop_usb_i2c_request(struct flexcop_i2c_adapter *i2c,
318                 flexcop_access_op_t op, u8 chipaddr, u8 addr, u8 *buf, u16 len)
319 {
320         if (op == FC_READ)
321                 return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
322                                 USB_FUNC_I2C_READ, chipaddr, addr, buf, len);
323         else
324                 return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
325                                 USB_FUNC_I2C_WRITE, chipaddr, addr, buf, len);
326 }
327 
328 static void flexcop_usb_process_frame(struct flexcop_usb *fc_usb,
329         u8 *buffer, int buffer_length)
330 {
331         u8 *b;
332         int l;
333 
334         deb_ts("tmp_buffer_length=%d, buffer_length=%d\n",
335                 fc_usb->tmp_buffer_length, buffer_length);
336 
337         if (fc_usb->tmp_buffer_length > 0) {
338                 memcpy(fc_usb->tmp_buffer+fc_usb->tmp_buffer_length, buffer,
339                                 buffer_length);
340                 fc_usb->tmp_buffer_length += buffer_length;
341                 b = fc_usb->tmp_buffer;
342                 l = fc_usb->tmp_buffer_length;
343         } else {
344                 b=buffer;
345                 l=buffer_length;
346         }
347 
348         while (l >= 190) {
349                 if (*b == 0xff) {
350                         switch (*(b+1) & 0x03) {
351                         case 0x01: /* media packet */
352                                 if (*(b+2) == 0x47)
353                                         flexcop_pass_dmx_packets(
354                                                         fc_usb->fc_dev, b+2, 1);
355                                 else
356                                         deb_ts("not ts packet %*ph\n", 4, b+2);
357                                 b += 190;
358                                 l -= 190;
359                                 break;
360                         default:
361                                 deb_ts("wrong packet type\n");
362                                 l = 0;
363                                 break;
364                         }
365                 } else {
366                         deb_ts("wrong header\n");
367                         l = 0;
368                 }
369         }
370 
371         if (l>0)
372                 memcpy(fc_usb->tmp_buffer, b, l);
373         fc_usb->tmp_buffer_length = l;
374 }
375 
376 static void flexcop_usb_urb_complete(struct urb *urb)
377 {
378         struct flexcop_usb *fc_usb = urb->context;
379         int i;
380 
381         if (urb->actual_length > 0)
382                 deb_ts("urb completed, bufsize: %d actlen; %d\n",
383                         urb->transfer_buffer_length, urb->actual_length);
384 
385         for (i = 0; i < urb->number_of_packets; i++) {
386                 if (urb->iso_frame_desc[i].status < 0) {
387                         err("iso frame descriptor %d has an error: %d\n", i,
388                                 urb->iso_frame_desc[i].status);
389                 } else
390                         if (urb->iso_frame_desc[i].actual_length > 0) {
391                                 deb_ts("passed %d bytes to the demux\n",
392                                         urb->iso_frame_desc[i].actual_length);
393 
394                                 flexcop_usb_process_frame(fc_usb,
395                                         urb->transfer_buffer +
396                                                 urb->iso_frame_desc[i].offset,
397                                         urb->iso_frame_desc[i].actual_length);
398                         }
399                 urb->iso_frame_desc[i].status = 0;
400                 urb->iso_frame_desc[i].actual_length = 0;
401         }
402         usb_submit_urb(urb,GFP_ATOMIC);
403 }
404 
405 static int flexcop_usb_stream_control(struct flexcop_device *fc, int onoff)
406 {
407         /* submit/kill iso packets */
408         return 0;
409 }
410 
411 static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
412 {
413         int i;
414         for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
415                 if (fc_usb->iso_urb[i] != NULL) {
416                         deb_ts("unlinking/killing urb no. %d\n",i);
417                         usb_kill_urb(fc_usb->iso_urb[i]);
418                         usb_free_urb(fc_usb->iso_urb[i]);
419                 }
420 
421         if (fc_usb->iso_buffer != NULL)
422                 usb_free_coherent(fc_usb->udev,
423                         fc_usb->buffer_size, fc_usb->iso_buffer,
424                         fc_usb->dma_addr);
425 }
426 
427 static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
428 {
429         u16 frame_size = le16_to_cpu(
430                 fc_usb->uintf->cur_altsetting->endpoint[0].desc.wMaxPacketSize);
431         int bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO *
432                 frame_size, i, j, ret;
433         int buffer_offset = 0;
434 
435         deb_ts("creating %d iso-urbs with %d frames each of %d bytes size = %d.\n",
436                B2C2_USB_NUM_ISO_URB,
437                         B2C2_USB_FRAMES_PER_ISO, frame_size, bufsize);
438 
439         fc_usb->iso_buffer = usb_alloc_coherent(fc_usb->udev,
440                         bufsize, GFP_KERNEL, &fc_usb->dma_addr);
441         if (fc_usb->iso_buffer == NULL)
442                 return -ENOMEM;
443 
444         memset(fc_usb->iso_buffer, 0, bufsize);
445         fc_usb->buffer_size = bufsize;
446 
447         /* creating iso urbs */
448         for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
449                 fc_usb->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,
450                         GFP_ATOMIC);
451                 if (fc_usb->iso_urb[i] == NULL) {
452                         ret = -ENOMEM;
453                         goto urb_error;
454                 }
455         }
456 
457         /* initialising and submitting iso urbs */
458         for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
459                 int frame_offset = 0;
460                 struct urb *urb = fc_usb->iso_urb[i];
461                 deb_ts("initializing and submitting urb no. %d (buf_offset: %d).\n",
462                        i, buffer_offset);
463 
464                 urb->dev = fc_usb->udev;
465                 urb->context = fc_usb;
466                 urb->complete = flexcop_usb_urb_complete;
467                 urb->pipe = B2C2_USB_DATA_PIPE;
468                 urb->transfer_flags = URB_ISO_ASAP;
469                 urb->interval = 1;
470                 urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
471                 urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
472                 urb->transfer_buffer = fc_usb->iso_buffer + buffer_offset;
473 
474                 buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
475                 for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
476                         deb_ts("urb no: %d, frame: %d, frame_offset: %d\n",
477                                         i, j, frame_offset);
478                         urb->iso_frame_desc[j].offset = frame_offset;
479                         urb->iso_frame_desc[j].length = frame_size;
480                         frame_offset += frame_size;
481                 }
482 
483                 if ((ret = usb_submit_urb(fc_usb->iso_urb[i],GFP_ATOMIC))) {
484                         err("submitting urb %d failed with %d.", i, ret);
485                         goto urb_error;
486                 }
487                 deb_ts("submitted urb no. %d.\n",i);
488         }
489 
490         /* SRAM */
491         flexcop_sram_set_dest(fc_usb->fc_dev, FC_SRAM_DEST_MEDIA |
492                         FC_SRAM_DEST_NET | FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI,
493                         FC_SRAM_DEST_TARGET_WAN_USB);
494         flexcop_wan_set_speed(fc_usb->fc_dev, FC_WAN_SPEED_8MBITS);
495         flexcop_sram_ctrl(fc_usb->fc_dev, 1, 1, 1);
496         return 0;
497 
498 urb_error:
499         flexcop_usb_transfer_exit(fc_usb);
500         return ret;
501 }
502 
503 static int flexcop_usb_init(struct flexcop_usb *fc_usb)
504 {
505         /* use the alternate setting with the larges buffer */
506         usb_set_interface(fc_usb->udev,0,1);
507         switch (fc_usb->udev->speed) {
508         case USB_SPEED_LOW:
509                 err("cannot handle USB speed because it is too slow.");
510                 return -ENODEV;
511                 break;
512         case USB_SPEED_FULL:
513                 info("running at FULL speed.");
514                 break;
515         case USB_SPEED_HIGH:
516                 info("running at HIGH speed.");
517                 break;
518         case USB_SPEED_UNKNOWN: /* fall through */
519         default:
520                 err("cannot handle USB speed because it is unknown.");
521                 return -ENODEV;
522         }
523         usb_set_intfdata(fc_usb->uintf, fc_usb);
524         return 0;
525 }
526 
527 static void flexcop_usb_exit(struct flexcop_usb *fc_usb)
528 {
529         usb_set_intfdata(fc_usb->uintf, NULL);
530 }
531 
532 static int flexcop_usb_probe(struct usb_interface *intf,
533                 const struct usb_device_id *id)
534 {
535         struct usb_device *udev = interface_to_usbdev(intf);
536         struct flexcop_usb *fc_usb = NULL;
537         struct flexcop_device *fc = NULL;
538         int ret;
539 
540         if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
541                 err("out of memory\n");
542                 return -ENOMEM;
543         }
544 
545         /* general flexcop init */
546         fc_usb = fc->bus_specific;
547         fc_usb->fc_dev = fc;
548         mutex_init(&fc_usb->data_mutex);
549 
550         fc->read_ibi_reg  = flexcop_usb_read_ibi_reg;
551         fc->write_ibi_reg = flexcop_usb_write_ibi_reg;
552         fc->i2c_request = flexcop_usb_i2c_request;
553         fc->get_mac_addr = flexcop_usb_get_mac_addr;
554 
555         fc->stream_control = flexcop_usb_stream_control;
556 
557         fc->pid_filtering = 1;
558         fc->bus_type = FC_USB;
559 
560         fc->dev = &udev->dev;
561         fc->owner = THIS_MODULE;
562 
563         /* bus specific part */
564         fc_usb->udev = udev;
565         fc_usb->uintf = intf;
566         if ((ret = flexcop_usb_init(fc_usb)) != 0)
567                 goto err_kfree;
568 
569         /* init flexcop */
570         if ((ret = flexcop_device_initialize(fc)) != 0)
571                 goto err_usb_exit;
572 
573         /* xfer init */
574         if ((ret = flexcop_usb_transfer_init(fc_usb)) != 0)
575                 goto err_fc_exit;
576 
577         info("%s successfully initialized and connected.", DRIVER_NAME);
578         return 0;
579 
580 err_fc_exit:
581         flexcop_device_exit(fc);
582 err_usb_exit:
583         flexcop_usb_exit(fc_usb);
584 err_kfree:
585         flexcop_device_kfree(fc);
586         return ret;
587 }
588 
589 static void flexcop_usb_disconnect(struct usb_interface *intf)
590 {
591         struct flexcop_usb *fc_usb = usb_get_intfdata(intf);
592         flexcop_usb_transfer_exit(fc_usb);
593         flexcop_device_exit(fc_usb->fc_dev);
594         flexcop_usb_exit(fc_usb);
595         flexcop_device_kfree(fc_usb->fc_dev);
596         info("%s successfully deinitialized and disconnected.", DRIVER_NAME);
597 }
598 
599 static struct usb_device_id flexcop_usb_table [] = {
600         { USB_DEVICE(0x0af7, 0x0101) },
601         { }
602 };
603 MODULE_DEVICE_TABLE (usb, flexcop_usb_table);
604 
605 /* usb specific object needed to register this driver with the usb subsystem */
606 static struct usb_driver flexcop_usb_driver = {
607         .name           = "b2c2_flexcop_usb",
608         .probe          = flexcop_usb_probe,
609         .disconnect = flexcop_usb_disconnect,
610         .id_table       = flexcop_usb_table,
611 };
612 
613 module_usb_driver(flexcop_usb_driver);
614 
615 MODULE_AUTHOR(DRIVER_AUTHOR);
616 MODULE_DESCRIPTION(DRIVER_NAME);
617 MODULE_LICENSE("GPL");
618 

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