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
35 static int debug;
36 module_param(debug, int, 0644);
37 MODULE_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 */
flexcop_usb_readwrite_dw(struct flexcop_device * fc,u16 wRegOffsPCI,u32 * val,u8 read)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);
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 */
flexcop_usb_v8_memory_req(struct flexcop_usb * fc_usb,flexcop_usb_request_t req,u8 page,u16 wAddress,u8 * pbBuffer,u32 buflen)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);
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
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)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 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
flexcop_usb_get_mac_addr(struct flexcop_device * fc,int extended)220 static 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 */
flexcop_usb_i2c_req(struct flexcop_i2c_adapter * i2c,flexcop_usb_request_t req,flexcop_usb_i2c_function_t func,u8 chipaddr,u8 addr,u8 * buf,u8 buflen)228 static 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 */
flexcop_usb_read_ibi_reg(struct flexcop_device * fc,flexcop_ibi_register reg)300 static 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
flexcop_usb_write_ibi_reg(struct flexcop_device * fc,flexcop_ibi_register reg,flexcop_ibi_value val)309 static 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
flexcop_usb_i2c_request(struct flexcop_i2c_adapter * i2c,flexcop_access_op_t op,u8 chipaddr,u8 addr,u8 * buf,u16 len)315 static 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
flexcop_usb_process_frame(struct flexcop_usb * fc_usb,u8 * buffer,int buffer_length)326 static 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
flexcop_usb_urb_complete(struct urb * urb)374 static 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
flexcop_usb_stream_control(struct flexcop_device * fc,int onoff)403 static int flexcop_usb_stream_control(struct flexcop_device *fc, int onoff)
404 {
405 /* submit/kill iso packets */
406 return 0;
407 }
408
flexcop_usb_transfer_exit(struct flexcop_usb * fc_usb)409 static 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
flexcop_usb_transfer_init(struct flexcop_usb * fc_usb)424 static 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
497 urb_error:
498 flexcop_usb_transfer_exit(fc_usb);
499 return ret;
500 }
501
flexcop_usb_init(struct flexcop_usb * fc_usb)502 static 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
flexcop_usb_exit(struct flexcop_usb * fc_usb)547 static void flexcop_usb_exit(struct flexcop_usb *fc_usb)
548 {
549 usb_set_intfdata(fc_usb->uintf, NULL);
550 }
551
flexcop_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)552 static 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
600 err_fc_exit:
601 flexcop_device_exit(fc);
602 err_usb_exit:
603 flexcop_usb_exit(fc_usb);
604 err_kfree:
605 flexcop_device_kfree(fc);
606 return ret;
607 }
608
flexcop_usb_disconnect(struct usb_interface * intf)609 static 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
619 static const struct usb_device_id flexcop_usb_table[] = {
620 { USB_DEVICE(0x0af7, 0x0101) },
621 { }
622 };
623 MODULE_DEVICE_TABLE (usb, flexcop_usb_table);
624
625 /* usb specific object needed to register this driver with the usb subsystem */
626 static 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
633 module_usb_driver(flexcop_usb_driver);
634
635 MODULE_AUTHOR(DRIVER_AUTHOR);
636 MODULE_DESCRIPTION(DRIVER_NAME);
637 MODULE_LICENSE("GPL");
638