1 /* DVB USB compliant linux driver for
2  *
3  * DM04/QQBOX DVB-S USB BOX	LME2510C + SHARP:BS2F7HZ7395
4  *				LME2510C + LG TDQY-P001F
5  *				LME2510C + BS2F7HZ0194
6  *				LME2510 + LG TDQY-P001F
7  *				LME2510 + BS2F7HZ0194
8  *
9  * MVB7395 (LME2510C+SHARP:BS2F7HZ7395)
10  * SHARP:BS2F7HZ7395 = (STV0288+Sharp IX2505V)
11  *
12  * MV001F (LME2510+LGTDQY-P001F)
13  * LG TDQY - P001F =(TDA8263 + TDA10086H)
14  *
15  * MVB0001F (LME2510C+LGTDQT-P001F)
16  *
17  * MV0194 (LME2510+SHARP:BS2F7HZ0194)
18  * SHARP:BS2F7HZ0194 = (STV0299+IX2410)
19  *
20  * MVB0194 (LME2510C+SHARP0194)
21  *
22  * For firmware see Documentation/dvb/lmedm04.txt
23  *
24  * I2C addresses:
25  * 0xd0 - STV0288	- Demodulator
26  * 0xc0 - Sharp IX2505V	- Tuner
27  * --
28  * 0x1c - TDA10086   - Demodulator
29  * 0xc0 - TDA8263    - Tuner
30  * --
31  * 0xd0 - STV0299	- Demodulator
32  * 0xc0 - IX2410	- Tuner
33  *
34  *
35  * VID = 3344  PID LME2510=1122 LME2510C=1120
36  *
37  * Copyright (C) 2010 Malcolm Priestley (tvboxspy@gmail.com)
38  * LME2510(C)(C) Leaguerme (Shenzhen) MicroElectronics Co., Ltd.
39  *
40  * This program is free software; you can redistribute it and/or modify
41  * it under the terms of the GNU General Public License Version 2, as
42  * published by the Free Software Foundation.
43  *
44  * This program is distributed in the hope that it will be useful,
45  * but WITHOUT ANY WARRANTY; without even the implied warranty of
46  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
47  * GNU General Public License for more details.
48  *
49  * You should have received a copy of the GNU General Public License
50  * along with this program; if not, write to the Free Software
51  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
52  *
53  *
54  * see Documentation/dvb/README.dvb-usb for more information
55  *
56  * Known Issues :
57  *	LME2510: Non Intel USB chipsets fail to maintain High Speed on
58  * Boot or Hot Plug.
59  *
60  * QQbox suffers from noise on LNB voltage.
61  *
62  *	LME2510: SHARP:BS2F7HZ0194(MV0194) cannot cold reset and share system
63  * with other tuners. After a cold reset streaming will not start.
64  *
65  */
66 #define DVB_USB_LOG_PREFIX "LME2510(C)"
67 #include <linux/usb.h>
68 #include <linux/usb/input.h>
69 #include <media/rc-core.h>
70 
71 #include "dvb-usb.h"
72 #include "lmedm04.h"
73 #include "tda826x.h"
74 #include "tda10086.h"
75 #include "stv0288.h"
76 #include "ix2505v.h"
77 #include "stv0299.h"
78 #include "dvb-pll.h"
79 #include "z0194a.h"
80 
81 
82 
83 /* debug */
84 static int dvb_usb_lme2510_debug;
85 #define l_dprintk(var, level, args...) do { \
86 	if ((var >= level)) \
87 		printk(KERN_DEBUG DVB_USB_LOG_PREFIX ": " args); \
88 } while (0)
89 
90 #define deb_info(level, args...) l_dprintk(dvb_usb_lme2510_debug, level, args)
91 #define debug_data_snipet(level, name, p) \
92 	 deb_info(level, name" (%02x%02x%02x%02x%02x%02x%02x%02x)", \
93 		*p, *(p+1), *(p+2), *(p+3), *(p+4), \
94 			*(p+5), *(p+6), *(p+7));
95 
96 
97 module_param_named(debug, dvb_usb_lme2510_debug, int, 0644);
98 MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able))."
99 			DVB_USB_DEBUG_STATUS);
100 
101 static int dvb_usb_lme2510_firmware;
102 module_param_named(firmware, dvb_usb_lme2510_firmware, int, 0644);
103 MODULE_PARM_DESC(firmware, "set default firmware 0=Sharp7395 1=LG");
104 
105 static int pid_filter;
106 module_param_named(pid, pid_filter, int, 0644);
107 MODULE_PARM_DESC(pid, "set default 0=on 1=off");
108 
109 
110 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
111 
112 #define TUNER_DEFAULT	0x0
113 #define TUNER_LG	0x1
114 #define TUNER_S7395	0x2
115 #define TUNER_S0194	0x3
116 
117 struct lme2510_state {
118 	u8 id;
119 	u8 tuner_config;
120 	u8 signal_lock;
121 	u8 signal_level;
122 	u8 signal_sn;
123 	u8 time_key;
124 	u8 i2c_talk_onoff;
125 	u8 i2c_gate;
126 	u8 i2c_tuner_gate_w;
127 	u8 i2c_tuner_gate_r;
128 	u8 i2c_tuner_addr;
129 	u8 stream_on;
130 	u8 pid_size;
131 	void *buffer;
132 	struct urb *lme_urb;
133 	void *usb_buffer;
134 
135 };
136 
lme2510_bulk_write(struct usb_device * dev,u8 * snd,int len,u8 pipe)137 static int lme2510_bulk_write(struct usb_device *dev,
138 				u8 *snd, int len, u8 pipe)
139 {
140 	int ret, actual_l;
141 
142 	ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, pipe),
143 				snd, len , &actual_l, 100);
144 	return ret;
145 }
146 
lme2510_bulk_read(struct usb_device * dev,u8 * rev,int len,u8 pipe)147 static int lme2510_bulk_read(struct usb_device *dev,
148 				u8 *rev, int len, u8 pipe)
149 {
150 	int ret, actual_l;
151 
152 	ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, pipe),
153 				 rev, len , &actual_l, 200);
154 	return ret;
155 }
156 
lme2510_usb_talk(struct dvb_usb_device * d,u8 * wbuf,int wlen,u8 * rbuf,int rlen)157 static int lme2510_usb_talk(struct dvb_usb_device *d,
158 		u8 *wbuf, int wlen, u8 *rbuf, int rlen)
159 {
160 	struct lme2510_state *st = d->priv;
161 	u8 *buff;
162 	int ret = 0;
163 
164 	if (st->usb_buffer == NULL) {
165 		st->usb_buffer = kmalloc(64, GFP_KERNEL);
166 		if (st->usb_buffer == NULL) {
167 			info("MEM Error no memory");
168 			return -ENOMEM;
169 		}
170 	}
171 	buff = st->usb_buffer;
172 
173 	ret = mutex_lock_interruptible(&d->usb_mutex);
174 
175 	if (ret < 0)
176 		return -EAGAIN;
177 
178 	/* the read/write capped at 64 */
179 	memcpy(buff, wbuf, (wlen < 64) ? wlen : 64);
180 
181 	ret |= usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, 0x01));
182 
183 	ret |= lme2510_bulk_write(d->udev, buff, wlen , 0x01);
184 
185 	msleep(10);
186 
187 	ret |= usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x01));
188 
189 	ret |= lme2510_bulk_read(d->udev, buff, (rlen < 64) ?
190 			rlen : 64 , 0x01);
191 
192 	if (rlen > 0)
193 		memcpy(rbuf, buff, rlen);
194 
195 	mutex_unlock(&d->usb_mutex);
196 
197 	return (ret < 0) ? -ENODEV : 0;
198 }
199 
lme2510_stream_restart(struct dvb_usb_device * d)200 static int lme2510_stream_restart(struct dvb_usb_device *d)
201 {
202 	static u8 stream_on[] = LME_ST_ON_W;
203 	int ret;
204 	u8 rbuff[10];
205 	/*Restart Stream Command*/
206 	ret = lme2510_usb_talk(d, stream_on, sizeof(stream_on),
207 			rbuff, sizeof(rbuff));
208 	return ret;
209 }
210 
lme2510_enable_pid(struct dvb_usb_device * d,u8 index,u16 pid_out)211 static int lme2510_enable_pid(struct dvb_usb_device *d, u8 index, u16 pid_out)
212 {
213 	struct lme2510_state *st = d->priv;
214 	static u8 pid_buff[] = LME_ZERO_PID;
215 	static u8 rbuf[1];
216 	u8 pid_no = index * 2;
217 	u8 pid_len = pid_no + 2;
218 	int ret = 0;
219 	deb_info(1, "PID Setting Pid %04x", pid_out);
220 
221 	if (st->pid_size == 0)
222 		ret |= lme2510_stream_restart(d);
223 
224 	pid_buff[2] = pid_no;
225 	pid_buff[3] = (u8)pid_out & 0xff;
226 	pid_buff[4] = pid_no + 1;
227 	pid_buff[5] = (u8)(pid_out >> 8);
228 
229 	if (pid_len > st->pid_size)
230 		st->pid_size = pid_len;
231 	pid_buff[7] = 0x80 + st->pid_size;
232 
233 	ret |= lme2510_usb_talk(d, pid_buff ,
234 		sizeof(pid_buff) , rbuf, sizeof(rbuf));
235 
236 	if (st->stream_on)
237 		ret |= lme2510_stream_restart(d);
238 
239 	return ret;
240 }
241 
lme2510_int_response(struct urb * lme_urb)242 static void lme2510_int_response(struct urb *lme_urb)
243 {
244 	struct dvb_usb_adapter *adap = lme_urb->context;
245 	struct lme2510_state *st = adap->dev->priv;
246 	static u8 *ibuf, *rbuf;
247 	int i = 0, offset;
248 	u32 key;
249 
250 	switch (lme_urb->status) {
251 	case 0:
252 	case -ETIMEDOUT:
253 		break;
254 	case -ECONNRESET:
255 	case -ENOENT:
256 	case -ESHUTDOWN:
257 		return;
258 	default:
259 		info("Error %x", lme_urb->status);
260 		break;
261 	}
262 
263 	rbuf = (u8 *) lme_urb->transfer_buffer;
264 
265 	offset = ((lme_urb->actual_length/8) > 4)
266 			? 4 : (lme_urb->actual_length/8) ;
267 
268 	for (i = 0; i < offset; ++i) {
269 		ibuf = (u8 *)&rbuf[i*8];
270 		deb_info(5, "INT O/S C =%02x C/O=%02x Type =%02x%02x",
271 		offset, i, ibuf[0], ibuf[1]);
272 
273 		switch (ibuf[0]) {
274 		case 0xaa:
275 			debug_data_snipet(1, "INT Remote data snipet", ibuf);
276 			if ((ibuf[4] + ibuf[5]) == 0xff) {
277 				key = ibuf[5];
278 				key += (ibuf[3] > 0)
279 					? (ibuf[3] ^ 0xff) << 8 : 0;
280 				key += (ibuf[2] ^ 0xff) << 16;
281 				deb_info(1, "INT Key =%08x", key);
282 				if (adap->dev->rc_dev != NULL)
283 					rc_keydown(adap->dev->rc_dev, key, 0);
284 			}
285 			break;
286 		case 0xbb:
287 			switch (st->tuner_config) {
288 			case TUNER_LG:
289 				if (ibuf[2] > 0)
290 					st->signal_lock = ibuf[2];
291 				st->signal_level = ibuf[4];
292 				st->signal_sn = ibuf[3];
293 				st->time_key = ibuf[7];
294 				break;
295 			case TUNER_S7395:
296 			case TUNER_S0194:
297 				/* Tweak for earlier firmware*/
298 				if (ibuf[1] == 0x03) {
299 					if (ibuf[2] > 1)
300 						st->signal_lock = ibuf[2];
301 					st->signal_level = ibuf[3];
302 					st->signal_sn = ibuf[4];
303 				} else {
304 					st->signal_level = ibuf[4];
305 					st->signal_sn = ibuf[5];
306 					st->signal_lock =
307 						(st->signal_lock & 0xf7) +
308 						((ibuf[2] & 0x01) << 0x03);
309 				}
310 				break;
311 			default:
312 				break;
313 			}
314 			debug_data_snipet(5, "INT Remote data snipet in", ibuf);
315 		break;
316 		case 0xcc:
317 			debug_data_snipet(1, "INT Control data snipet", ibuf);
318 			break;
319 		default:
320 			debug_data_snipet(1, "INT Unknown data snipet", ibuf);
321 		break;
322 		}
323 	}
324 	usb_submit_urb(lme_urb, GFP_ATOMIC);
325 }
326 
lme2510_int_read(struct dvb_usb_adapter * adap)327 static int lme2510_int_read(struct dvb_usb_adapter *adap)
328 {
329 	struct lme2510_state *lme_int = adap->dev->priv;
330 
331 	lme_int->lme_urb = usb_alloc_urb(0, GFP_ATOMIC);
332 
333 	if (lme_int->lme_urb == NULL)
334 			return -ENOMEM;
335 
336 	lme_int->buffer = usb_alloc_coherent(adap->dev->udev, 128, GFP_ATOMIC,
337 					&lme_int->lme_urb->transfer_dma);
338 
339 	if (lme_int->buffer == NULL)
340 			return -ENOMEM;
341 
342 	usb_fill_int_urb(lme_int->lme_urb,
343 				adap->dev->udev,
344 				usb_rcvintpipe(adap->dev->udev, 0xa),
345 				lme_int->buffer,
346 				128,
347 				lme2510_int_response,
348 				adap,
349 				8);
350 
351 	lme_int->lme_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
352 
353 	usb_submit_urb(lme_int->lme_urb, GFP_ATOMIC);
354 	info("INT Interrupt Service Started");
355 
356 	return 0;
357 }
358 
lme2510_pid_filter_ctrl(struct dvb_usb_adapter * adap,int onoff)359 static int lme2510_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
360 {
361 	struct lme2510_state *st = adap->dev->priv;
362 	static u8 clear_pid_reg[] = LME_CLEAR_PID;
363 	static u8 rbuf[1];
364 	int ret;
365 
366 	deb_info(1, "PID Clearing Filter");
367 
368 	ret = mutex_lock_interruptible(&adap->dev->i2c_mutex);
369 	if (ret < 0)
370 		return -EAGAIN;
371 
372 	if (!onoff)
373 		ret |= lme2510_usb_talk(adap->dev, clear_pid_reg,
374 			sizeof(clear_pid_reg), rbuf, sizeof(rbuf));
375 
376 	st->pid_size = 0;
377 
378 	mutex_unlock(&adap->dev->i2c_mutex);
379 
380 	return 0;
381 }
382 
lme2510_pid_filter(struct dvb_usb_adapter * adap,int index,u16 pid,int onoff)383 static int lme2510_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
384 	int onoff)
385 {
386 	int ret = 0;
387 
388 	deb_info(3, "%s PID=%04x Index=%04x onoff=%02x", __func__,
389 		pid, index, onoff);
390 
391 	if (onoff) {
392 			ret = mutex_lock_interruptible(&adap->dev->i2c_mutex);
393 			if (ret < 0)
394 				return -EAGAIN;
395 			ret |= lme2510_enable_pid(adap->dev, index, pid);
396 			mutex_unlock(&adap->dev->i2c_mutex);
397 	}
398 
399 
400 	return ret;
401 }
402 
403 
lme2510_return_status(struct usb_device * dev)404 static int lme2510_return_status(struct usb_device *dev)
405 {
406 	int ret = 0;
407 	u8 *data;
408 
409 	data = kzalloc(10, GFP_KERNEL);
410 	if (!data)
411 		return -ENOMEM;
412 
413 	ret |= usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
414 			0x06, 0x80, 0x0302, 0x00, data, 0x0006, 200);
415 	info("Firmware Status: %x (%x)", ret , data[2]);
416 
417 	ret = (ret < 0) ? -ENODEV : data[2];
418 	kfree(data);
419 	return ret;
420 }
421 
lme2510_msg(struct dvb_usb_device * d,u8 * wbuf,int wlen,u8 * rbuf,int rlen)422 static int lme2510_msg(struct dvb_usb_device *d,
423 		u8 *wbuf, int wlen, u8 *rbuf, int rlen)
424 {
425 	int ret = 0;
426 	struct lme2510_state *st = d->priv;
427 
428 	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
429 			return -EAGAIN;
430 
431 	if (st->i2c_talk_onoff == 1) {
432 
433 		ret = lme2510_usb_talk(d, wbuf, wlen, rbuf, rlen);
434 
435 		switch (st->tuner_config) {
436 		case TUNER_LG:
437 			if (wbuf[2] == 0x1c) {
438 				if (wbuf[3] == 0x0e) {
439 					st->signal_lock = rbuf[1];
440 					if ((st->stream_on & 1) &&
441 						(st->signal_lock & 0x10)) {
442 						lme2510_stream_restart(d);
443 						st->i2c_talk_onoff = 0;
444 					}
445 					msleep(80);
446 				}
447 			}
448 			break;
449 		case TUNER_S7395:
450 			if (wbuf[2] == 0xd0) {
451 				if (wbuf[3] == 0x24) {
452 					st->signal_lock = rbuf[1];
453 					if ((st->stream_on & 1) &&
454 						(st->signal_lock & 0x8)) {
455 						lme2510_stream_restart(d);
456 						st->i2c_talk_onoff = 0;
457 					}
458 				}
459 				if ((wbuf[3] != 0x6) & (wbuf[3] != 0x5))
460 					msleep(5);
461 			}
462 			break;
463 		case TUNER_S0194:
464 			if (wbuf[2] == 0xd0) {
465 				if (wbuf[3] == 0x1b) {
466 					st->signal_lock = rbuf[1];
467 					if ((st->stream_on & 1) &&
468 						(st->signal_lock & 0x8)) {
469 						lme2510_stream_restart(d);
470 						st->i2c_talk_onoff = 0;
471 					}
472 				}
473 			}
474 			break;
475 		default:
476 			break;
477 		}
478 	} else {
479 		switch (st->tuner_config) {
480 		case TUNER_LG:
481 			switch (wbuf[3]) {
482 			case 0x0e:
483 				rbuf[0] = 0x55;
484 				rbuf[1] = st->signal_lock;
485 				break;
486 			case 0x43:
487 				rbuf[0] = 0x55;
488 				rbuf[1] = st->signal_level;
489 				break;
490 			case 0x1c:
491 				rbuf[0] = 0x55;
492 				rbuf[1] = st->signal_sn;
493 				break;
494 			case 0x15:
495 			case 0x16:
496 			case 0x17:
497 			case 0x18:
498 				rbuf[0] = 0x55;
499 				rbuf[1] = 0x00;
500 				break;
501 			default:
502 				lme2510_usb_talk(d, wbuf, wlen, rbuf, rlen);
503 				st->i2c_talk_onoff = 1;
504 				break;
505 			}
506 			break;
507 		case TUNER_S7395:
508 			switch (wbuf[3]) {
509 			case 0x10:
510 				rbuf[0] = 0x55;
511 				rbuf[1] = (st->signal_level & 0x80)
512 						? 0 : (st->signal_level * 2);
513 				break;
514 			case 0x2d:
515 				rbuf[0] = 0x55;
516 				rbuf[1] = st->signal_sn;
517 				break;
518 			case 0x24:
519 				rbuf[0] = 0x55;
520 				rbuf[1] = st->signal_lock;
521 				break;
522 			case 0x2e:
523 			case 0x26:
524 			case 0x27:
525 				rbuf[0] = 0x55;
526 				rbuf[1] = 0x00;
527 				break;
528 			default:
529 				lme2510_usb_talk(d, wbuf, wlen, rbuf, rlen);
530 				st->i2c_talk_onoff = 1;
531 				break;
532 			}
533 			break;
534 		case TUNER_S0194:
535 			switch (wbuf[3]) {
536 			case 0x18:
537 				rbuf[0] = 0x55;
538 				rbuf[1] = (st->signal_level & 0x80)
539 						? 0 : (st->signal_level * 2);
540 				break;
541 			case 0x24:
542 				rbuf[0] = 0x55;
543 				rbuf[1] = st->signal_sn;
544 				break;
545 			case 0x1b:
546 				rbuf[0] = 0x55;
547 				rbuf[1] = st->signal_lock;
548 				break;
549 			case 0x19:
550 			case 0x25:
551 			case 0x1e:
552 			case 0x1d:
553 				rbuf[0] = 0x55;
554 				rbuf[1] = 0x00;
555 				break;
556 			default:
557 				lme2510_usb_talk(d, wbuf, wlen, rbuf, rlen);
558 				st->i2c_talk_onoff = 1;
559 				break;
560 			}
561 			break;
562 		default:
563 			break;
564 		}
565 
566 		deb_info(4, "I2C From Interrupt Message out(%02x) in(%02x)",
567 				wbuf[3], rbuf[1]);
568 
569 	}
570 
571 	mutex_unlock(&d->i2c_mutex);
572 
573 	return ret;
574 }
575 
576 
lme2510_i2c_xfer(struct i2c_adapter * adap,struct i2c_msg msg[],int num)577 static int lme2510_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
578 				 int num)
579 {
580 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
581 	struct lme2510_state *st = d->priv;
582 	static u8 obuf[64], ibuf[64];
583 	int i, read, read_o;
584 	u16 len;
585 	u8 gate = st->i2c_gate;
586 
587 	if (gate == 0)
588 		gate = 5;
589 
590 	if (num > 2)
591 		warn("more than 2 i2c messages"
592 			"at a time is not handled yet.	TODO.");
593 
594 	for (i = 0; i < num; i++) {
595 		read_o = 1 & (msg[i].flags & I2C_M_RD);
596 		read = i+1 < num && (msg[i+1].flags & I2C_M_RD);
597 		read |= read_o;
598 		gate = (msg[i].addr == st->i2c_tuner_addr)
599 			? (read)	? st->i2c_tuner_gate_r
600 					: st->i2c_tuner_gate_w
601 			: st->i2c_gate;
602 		obuf[0] = gate | (read << 7);
603 
604 		if (gate == 5)
605 			obuf[1] = (read) ? 2 : msg[i].len + 1;
606 		else
607 			obuf[1] = msg[i].len + read + 1;
608 
609 		obuf[2] = msg[i].addr;
610 		if (read) {
611 			if (read_o)
612 				len = 3;
613 			else {
614 				memcpy(&obuf[3], msg[i].buf, msg[i].len);
615 				obuf[msg[i].len+3] = msg[i+1].len;
616 				len = msg[i].len+4;
617 			}
618 		} else {
619 			memcpy(&obuf[3], msg[i].buf, msg[i].len);
620 			len = msg[i].len+3;
621 		}
622 
623 		if (lme2510_msg(d, obuf, len, ibuf, 64) < 0) {
624 			deb_info(1, "i2c transfer failed.");
625 			return -EAGAIN;
626 		}
627 
628 		if (read) {
629 			if (read_o)
630 				memcpy(msg[i].buf, &ibuf[1], msg[i].len);
631 			else {
632 				memcpy(msg[i+1].buf, &ibuf[1], msg[i+1].len);
633 				i++;
634 			}
635 		}
636 	}
637 	return i;
638 }
639 
lme2510_i2c_func(struct i2c_adapter * adapter)640 static u32 lme2510_i2c_func(struct i2c_adapter *adapter)
641 {
642 	return I2C_FUNC_I2C;
643 }
644 
645 static struct i2c_algorithm lme2510_i2c_algo = {
646 	.master_xfer   = lme2510_i2c_xfer,
647 	.functionality = lme2510_i2c_func,
648 };
649 
650 /* Callbacks for DVB USB */
lme2510_identify_state(struct usb_device * udev,struct dvb_usb_device_properties * props,struct dvb_usb_device_description ** desc,int * cold)651 static int lme2510_identify_state(struct usb_device *udev,
652 		struct dvb_usb_device_properties *props,
653 		struct dvb_usb_device_description **desc,
654 		int *cold)
655 {
656 	if (pid_filter > 0)
657 		props->adapter[0].fe[0].caps &=
658 			~DVB_USB_ADAP_NEED_PID_FILTERING;
659 	*cold = 0;
660 	return 0;
661 }
662 
lme2510_streaming_ctrl(struct dvb_usb_adapter * adap,int onoff)663 static int lme2510_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
664 {
665 	struct lme2510_state *st = adap->dev->priv;
666 	static u8 clear_reg_3[] = LME_CLEAR_PID;
667 	static u8 rbuf[1];
668 	int ret = 0, rlen = sizeof(rbuf);
669 
670 	deb_info(1, "STM  (%02x)", onoff);
671 
672 	/* Streaming is started by FE_HAS_LOCK */
673 	if (onoff == 1)
674 		st->stream_on = 1;
675 	else {
676 		deb_info(1, "STM Steam Off");
677 		/* mutex is here only to avoid collision with I2C */
678 		if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
679 			return -EAGAIN;
680 
681 		ret = lme2510_usb_talk(adap->dev, clear_reg_3,
682 				sizeof(clear_reg_3), rbuf, rlen);
683 		st->stream_on = 0;
684 		st->i2c_talk_onoff = 1;
685 
686 		mutex_unlock(&adap->dev->i2c_mutex);
687 	}
688 
689 	return (ret < 0) ? -ENODEV : 0;
690 }
691 
check_sum(u8 * p,u8 len)692 static u8 check_sum(u8 *p, u8 len)
693 {
694 	u8 sum = 0;
695 	while (len--)
696 		sum += *p++;
697 	return sum;
698 }
699 
lme2510_download_firmware(struct usb_device * dev,const struct firmware * fw)700 static int lme2510_download_firmware(struct usb_device *dev,
701 					const struct firmware *fw)
702 {
703 	int ret = 0;
704 	u8 *data;
705 	u16 j, wlen, len_in, start, end;
706 	u8 packet_size, dlen, i;
707 	u8 *fw_data;
708 
709 	packet_size = 0x31;
710 	len_in = 1;
711 
712 	data = kzalloc(512, GFP_KERNEL);
713 	if (!data) {
714 		info("FRM Could not start Firmware Download (Buffer allocation failed)");
715 		return -ENOMEM;
716 	}
717 
718 	info("FRM Starting Firmware Download");
719 
720 	for (i = 1; i < 3; i++) {
721 		start = (i == 1) ? 0 : 512;
722 		end = (i == 1) ? 512 : fw->size;
723 		for (j = start; j < end; j += (packet_size+1)) {
724 			fw_data = (u8 *)(fw->data + j);
725 			if ((end - j) > packet_size) {
726 				data[0] = i;
727 				dlen = packet_size;
728 			} else {
729 				data[0] = i | 0x80;
730 				dlen = (u8)(end - j)-1;
731 			}
732 			data[1] = dlen;
733 			memcpy(&data[2], fw_data, dlen+1);
734 			wlen = (u8) dlen + 4;
735 			data[wlen-1] = check_sum(fw_data, dlen+1);
736 			deb_info(1, "Data S=%02x:E=%02x CS= %02x", data[3],
737 				data[dlen+2], data[dlen+3]);
738 			ret |= lme2510_bulk_write(dev, data,  wlen, 1);
739 			ret |= lme2510_bulk_read(dev, data, len_in , 1);
740 			ret |= (data[0] == 0x88) ? 0 : -1;
741 		}
742 	}
743 
744 	usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
745 			0x06, 0x80, 0x0200, 0x00, data, 0x0109, 1000);
746 
747 
748 	data[0] = 0x8a;
749 	len_in = 1;
750 	msleep(2000);
751 	ret |= lme2510_bulk_write(dev, data , len_in, 1); /*Resetting*/
752 	ret |= lme2510_bulk_read(dev, data, len_in, 1);
753 	msleep(400);
754 
755 	if (ret < 0)
756 		info("FRM Firmware Download Failed (%04x)" , ret);
757 	else
758 		info("FRM Firmware Download Completed - Resetting Device");
759 
760 	kfree(data);
761 	return (ret < 0) ? -ENODEV : 0;
762 }
763 
lme_coldreset(struct usb_device * dev)764 static void lme_coldreset(struct usb_device *dev)
765 {
766 	int ret = 0, len_in;
767 	u8 data[512] = {0};
768 
769 	data[0] = 0x0a;
770 	len_in = 1;
771 	info("FRM Firmware Cold Reset");
772 	ret |= lme2510_bulk_write(dev, data , len_in, 1); /*Cold Resetting*/
773 	ret |= lme2510_bulk_read(dev, data, len_in, 1);
774 
775 	return;
776 }
777 
lme_firmware_switch(struct usb_device * udev,int cold)778 static int lme_firmware_switch(struct usb_device *udev, int cold)
779 {
780 	const struct firmware *fw = NULL;
781 	const char fw_c_s7395[] = "dvb-usb-lme2510c-s7395.fw";
782 	const char fw_c_lg[] = "dvb-usb-lme2510c-lg.fw";
783 	const char fw_c_s0194[] = "dvb-usb-lme2510c-s0194.fw";
784 	const char fw_lg[] = "dvb-usb-lme2510-lg.fw";
785 	const char fw_s0194[] = "dvb-usb-lme2510-s0194.fw";
786 	const char *fw_lme;
787 	int ret, cold_fw;
788 
789 	cold = (cold > 0) ? (cold & 1) : 0;
790 
791 	cold_fw = !cold;
792 
793 	if (le16_to_cpu(udev->descriptor.idProduct) == 0x1122) {
794 		switch (dvb_usb_lme2510_firmware) {
795 		default:
796 			dvb_usb_lme2510_firmware = TUNER_S0194;
797 		case TUNER_S0194:
798 			fw_lme = fw_s0194;
799 			ret = request_firmware(&fw, fw_lme, &udev->dev);
800 			if (ret == 0) {
801 				cold = 0;
802 				break;
803 			}
804 			dvb_usb_lme2510_firmware = TUNER_LG;
805 		case TUNER_LG:
806 			fw_lme = fw_lg;
807 			ret = request_firmware(&fw, fw_lme, &udev->dev);
808 			if (ret == 0)
809 				break;
810 			info("FRM No Firmware Found - please install");
811 			dvb_usb_lme2510_firmware = TUNER_DEFAULT;
812 			cold = 0;
813 			cold_fw = 0;
814 			break;
815 		}
816 	} else {
817 		switch (dvb_usb_lme2510_firmware) {
818 		default:
819 			dvb_usb_lme2510_firmware = TUNER_S7395;
820 		case TUNER_S7395:
821 			fw_lme = fw_c_s7395;
822 			ret = request_firmware(&fw, fw_lme, &udev->dev);
823 			if (ret == 0) {
824 				cold = 0;
825 				break;
826 			}
827 			dvb_usb_lme2510_firmware = TUNER_LG;
828 		case TUNER_LG:
829 			fw_lme = fw_c_lg;
830 			ret = request_firmware(&fw, fw_lme, &udev->dev);
831 			if (ret == 0)
832 				break;
833 			dvb_usb_lme2510_firmware = TUNER_S0194;
834 		case TUNER_S0194:
835 			fw_lme = fw_c_s0194;
836 			ret = request_firmware(&fw, fw_lme, &udev->dev);
837 			if (ret == 0)
838 				break;
839 			info("FRM No Firmware Found - please install");
840 			dvb_usb_lme2510_firmware = TUNER_DEFAULT;
841 			cold = 0;
842 			cold_fw = 0;
843 			break;
844 		}
845 	}
846 
847 	if (cold_fw) {
848 		info("FRM Loading %s file", fw_lme);
849 		ret = lme2510_download_firmware(udev, fw);
850 	}
851 
852 	release_firmware(fw);
853 
854 	if (cold) {
855 		info("FRM Changing to %s firmware", fw_lme);
856 		lme_coldreset(udev);
857 		return -ENODEV;
858 	}
859 
860 	return ret;
861 }
862 
lme2510_kill_urb(struct usb_data_stream * stream)863 static int lme2510_kill_urb(struct usb_data_stream *stream)
864 {
865 	int i;
866 
867 	for (i = 0; i < stream->urbs_submitted; i++) {
868 		deb_info(3, "killing URB no. %d.", i);
869 		/* stop the URB */
870 		usb_kill_urb(stream->urb_list[i]);
871 	}
872 	stream->urbs_submitted = 0;
873 
874 	return 0;
875 }
876 
877 static struct tda10086_config tda10086_config = {
878 	.demod_address = 0x1c,
879 	.invert = 0,
880 	.diseqc_tone = 1,
881 	.xtal_freq = TDA10086_XTAL_16M,
882 };
883 
884 static struct stv0288_config lme_config = {
885 	.demod_address = 0xd0,
886 	.min_delay_ms = 15,
887 	.inittab = s7395_inittab,
888 };
889 
890 static struct ix2505v_config lme_tuner = {
891 	.tuner_address = 0xc0,
892 	.min_delay_ms = 100,
893 	.tuner_gain = 0x0,
894 	.tuner_chargepump = 0x3,
895 };
896 
897 static struct stv0299_config sharp_z0194_config = {
898 	.demod_address = 0xd0,
899 	.inittab = sharp_z0194a_inittab,
900 	.mclk = 88000000UL,
901 	.invert = 0,
902 	.skip_reinit = 0,
903 	.lock_output = STV0299_LOCKOUTPUT_1,
904 	.volt13_op0_op1 = STV0299_VOLT13_OP1,
905 	.min_delay_ms = 100,
906 	.set_symbol_rate = sharp_z0194a_set_symbol_rate,
907 };
908 
dm04_lme2510_set_voltage(struct dvb_frontend * fe,fe_sec_voltage_t voltage)909 static int dm04_lme2510_set_voltage(struct dvb_frontend *fe,
910 					fe_sec_voltage_t voltage)
911 {
912 	struct dvb_usb_adapter *adap = fe->dvb->priv;
913 	static u8 voltage_low[]	= LME_VOLTAGE_L;
914 	static u8 voltage_high[] = LME_VOLTAGE_H;
915 	static u8 rbuf[1];
916 	int ret = 0, len = 3, rlen = 1;
917 
918 	if (mutex_lock_interruptible(&adap->dev->i2c_mutex) < 0)
919 			return -EAGAIN;
920 
921 	switch (voltage) {
922 	case SEC_VOLTAGE_18:
923 		ret |= lme2510_usb_talk(adap->dev,
924 			voltage_high, len, rbuf, rlen);
925 		break;
926 
927 	case SEC_VOLTAGE_OFF:
928 	case SEC_VOLTAGE_13:
929 	default:
930 		ret |= lme2510_usb_talk(adap->dev,
931 				voltage_low, len, rbuf, rlen);
932 		break;
933 	}
934 
935 	mutex_unlock(&adap->dev->i2c_mutex);
936 
937 	return (ret < 0) ? -ENODEV : 0;
938 }
939 
lme_name(struct dvb_usb_adapter * adap)940 static int lme_name(struct dvb_usb_adapter *adap)
941 {
942 	struct lme2510_state *st = adap->dev->priv;
943 	const char *desc = adap->dev->desc->name;
944 	char *fe_name[] = {"", " LG TDQY-P001F", " SHARP:BS2F7HZ7395",
945 				" SHARP:BS2F7HZ0194"};
946 	char *name = adap->fe_adap[0].fe->ops.info.name;
947 
948 	strlcpy(name, desc, 128);
949 	strlcat(name, fe_name[st->tuner_config], 128);
950 
951 	return 0;
952 }
953 
dm04_lme2510_frontend_attach(struct dvb_usb_adapter * adap)954 static int dm04_lme2510_frontend_attach(struct dvb_usb_adapter *adap)
955 {
956 	struct lme2510_state *st = adap->dev->priv;
957 
958 	int ret = 0;
959 
960 	st->i2c_talk_onoff = 1;
961 
962 	st->i2c_gate = 4;
963 	adap->fe_adap[0].fe = dvb_attach(tda10086_attach, &tda10086_config,
964 		&adap->dev->i2c_adap);
965 
966 	if (adap->fe_adap[0].fe) {
967 		info("TUN Found Frontend TDA10086");
968 		st->i2c_tuner_gate_w = 4;
969 		st->i2c_tuner_gate_r = 4;
970 		st->i2c_tuner_addr = 0xc0;
971 		st->tuner_config = TUNER_LG;
972 		if (dvb_usb_lme2510_firmware != TUNER_LG) {
973 			dvb_usb_lme2510_firmware = TUNER_LG;
974 			ret = lme_firmware_switch(adap->dev->udev, 1);
975 		}
976 		goto end;
977 	}
978 
979 	st->i2c_gate = 4;
980 	adap->fe_adap[0].fe = dvb_attach(stv0299_attach, &sharp_z0194_config,
981 			&adap->dev->i2c_adap);
982 	if (adap->fe_adap[0].fe) {
983 		info("FE Found Stv0299");
984 		st->i2c_tuner_gate_w = 4;
985 		st->i2c_tuner_gate_r = 5;
986 		st->i2c_tuner_addr = 0xc0;
987 		st->tuner_config = TUNER_S0194;
988 		if (dvb_usb_lme2510_firmware != TUNER_S0194) {
989 			dvb_usb_lme2510_firmware = TUNER_S0194;
990 			ret = lme_firmware_switch(adap->dev->udev, 1);
991 		}
992 		goto end;
993 	}
994 
995 	st->i2c_gate = 5;
996 	adap->fe_adap[0].fe = dvb_attach(stv0288_attach, &lme_config,
997 			&adap->dev->i2c_adap);
998 	if (adap->fe_adap[0].fe) {
999 		info("FE Found Stv0288");
1000 		st->i2c_tuner_gate_w = 4;
1001 		st->i2c_tuner_gate_r = 5;
1002 		st->i2c_tuner_addr = 0xc0;
1003 		st->tuner_config = TUNER_S7395;
1004 		if (dvb_usb_lme2510_firmware != TUNER_S7395) {
1005 			dvb_usb_lme2510_firmware = TUNER_S7395;
1006 			ret = lme_firmware_switch(adap->dev->udev, 1);
1007 		}
1008 	} else {
1009 		info("DM04 Not Supported");
1010 		return -ENODEV;
1011 	}
1012 
1013 
1014 end:	if (ret) {
1015 		if (adap->fe_adap[0].fe) {
1016 			dvb_frontend_detach(adap->fe_adap[0].fe);
1017 			adap->fe_adap[0].fe = NULL;
1018 		}
1019 		adap->dev->props.rc.core.rc_codes = NULL;
1020 		return -ENODEV;
1021 	}
1022 
1023 	adap->fe_adap[0].fe->ops.set_voltage = dm04_lme2510_set_voltage;
1024 	ret = lme_name(adap);
1025 	return ret;
1026 }
1027 
dm04_lme2510_tuner(struct dvb_usb_adapter * adap)1028 static int dm04_lme2510_tuner(struct dvb_usb_adapter *adap)
1029 {
1030 	struct lme2510_state *st = adap->dev->priv;
1031 	char *tun_msg[] = {"", "TDA8263", "IX2505V", "DVB_PLL_OPERA"};
1032 	int ret = 0;
1033 
1034 	switch (st->tuner_config) {
1035 	case TUNER_LG:
1036 		if (dvb_attach(tda826x_attach, adap->fe_adap[0].fe, 0xc0,
1037 			&adap->dev->i2c_adap, 1))
1038 			ret = st->tuner_config;
1039 		break;
1040 	case TUNER_S7395:
1041 		if (dvb_attach(ix2505v_attach , adap->fe_adap[0].fe, &lme_tuner,
1042 			&adap->dev->i2c_adap))
1043 			ret = st->tuner_config;
1044 		break;
1045 	case TUNER_S0194:
1046 		if (dvb_attach(dvb_pll_attach , adap->fe_adap[0].fe, 0xc0,
1047 			&adap->dev->i2c_adap, DVB_PLL_OPERA1))
1048 			ret = st->tuner_config;
1049 		break;
1050 	default:
1051 		break;
1052 	}
1053 
1054 	if (ret)
1055 		info("TUN Found %s tuner", tun_msg[ret]);
1056 	else {
1057 		info("TUN No tuner found --- reseting device");
1058 		lme_coldreset(adap->dev->udev);
1059 		return -ENODEV;
1060 	}
1061 
1062 	/* Start the Interrupt*/
1063 	ret = lme2510_int_read(adap);
1064 	if (ret < 0) {
1065 		info("INT Unable to start Interrupt Service");
1066 		return -ENODEV;
1067 	}
1068 
1069 	return ret;
1070 }
1071 
lme2510_powerup(struct dvb_usb_device * d,int onoff)1072 static int lme2510_powerup(struct dvb_usb_device *d, int onoff)
1073 {
1074 	struct lme2510_state *st = d->priv;
1075 	static u8 lnb_on[] = LNB_ON;
1076 	static u8 lnb_off[] = LNB_OFF;
1077 	static u8 rbuf[1];
1078 	int ret, len = 3, rlen = 1;
1079 
1080 	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
1081 		return -EAGAIN;
1082 
1083 	if (onoff)
1084 		ret = lme2510_usb_talk(d, lnb_on, len, rbuf, rlen);
1085 	else
1086 		ret = lme2510_usb_talk(d, lnb_off, len, rbuf, rlen);
1087 
1088 	st->i2c_talk_onoff = 1;
1089 
1090 	mutex_unlock(&d->i2c_mutex);
1091 
1092 	return ret;
1093 }
1094 
1095 /* DVB USB Driver stuff */
1096 static struct dvb_usb_device_properties lme2510_properties;
1097 static struct dvb_usb_device_properties lme2510c_properties;
1098 
lme2510_probe(struct usb_interface * intf,const struct usb_device_id * id)1099 static int lme2510_probe(struct usb_interface *intf,
1100 		const struct usb_device_id *id)
1101 {
1102 	struct usb_device *udev = interface_to_usbdev(intf);
1103 	int ret = 0;
1104 
1105 	usb_reset_configuration(udev);
1106 
1107 	usb_set_interface(udev, intf->cur_altsetting->desc.bInterfaceNumber, 1);
1108 
1109 	if (udev->speed != USB_SPEED_HIGH) {
1110 		ret = usb_reset_device(udev);
1111 		info("DEV Failed to connect in HIGH SPEED mode");
1112 		return -ENODEV;
1113 	}
1114 
1115 	if (lme2510_return_status(udev) == 0x44) {
1116 		lme_firmware_switch(udev, 0);
1117 		return -ENODEV;
1118 	}
1119 
1120 	if (0 == dvb_usb_device_init(intf, &lme2510_properties,
1121 				     THIS_MODULE, NULL, adapter_nr)) {
1122 		info("DEV registering device driver");
1123 		return 0;
1124 	}
1125 	if (0 == dvb_usb_device_init(intf, &lme2510c_properties,
1126 				     THIS_MODULE, NULL, adapter_nr)) {
1127 		info("DEV registering device driver");
1128 		return 0;
1129 	}
1130 
1131 	info("DEV lme2510 Error");
1132 	return -ENODEV;
1133 
1134 }
1135 
1136 static struct usb_device_id lme2510_table[] = {
1137 	{ USB_DEVICE(0x3344, 0x1122) },  /* LME2510 */
1138 	{ USB_DEVICE(0x3344, 0x1120) },  /* LME2510C */
1139 	{}		/* Terminating entry */
1140 };
1141 
1142 MODULE_DEVICE_TABLE(usb, lme2510_table);
1143 
1144 static struct dvb_usb_device_properties lme2510_properties = {
1145 	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
1146 	.size_of_priv = sizeof(struct lme2510_state),
1147 	.num_adapters = 1,
1148 	.adapter = {
1149 		{
1150 		.num_frontends = 1,
1151 		.fe = {{
1152 			.caps = DVB_USB_ADAP_HAS_PID_FILTER|
1153 				DVB_USB_ADAP_NEED_PID_FILTERING|
1154 				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1155 			.streaming_ctrl   = lme2510_streaming_ctrl,
1156 			.pid_filter_count = 15,
1157 			.pid_filter = lme2510_pid_filter,
1158 			.pid_filter_ctrl  = lme2510_pid_filter_ctrl,
1159 			.frontend_attach  = dm04_lme2510_frontend_attach,
1160 			.tuner_attach = dm04_lme2510_tuner,
1161 			/* parameter for the MPEG2-data transfer */
1162 			.stream = {
1163 				.type = USB_BULK,
1164 				.count = 10,
1165 				.endpoint = 0x06,
1166 				.u = {
1167 					.bulk = {
1168 						.buffersize = 4096,
1169 
1170 					}
1171 				}
1172 			}
1173 		}},
1174 		}
1175 	},
1176 	.rc.core = {
1177 		.protocol	= RC_TYPE_NEC,
1178 		.module_name	= "LME2510 Remote Control",
1179 		.allowed_protos	= RC_TYPE_NEC,
1180 		.rc_codes	= RC_MAP_LME2510,
1181 	},
1182 	.power_ctrl       = lme2510_powerup,
1183 	.identify_state   = lme2510_identify_state,
1184 	.i2c_algo         = &lme2510_i2c_algo,
1185 	.generic_bulk_ctrl_endpoint = 0,
1186 	.num_device_descs = 1,
1187 	.devices = {
1188 		{   "DM04_LME2510_DVB-S",
1189 			{ &lme2510_table[0], NULL },
1190 			},
1191 
1192 	}
1193 };
1194 
1195 static struct dvb_usb_device_properties lme2510c_properties = {
1196 	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
1197 	.size_of_priv = sizeof(struct lme2510_state),
1198 	.num_adapters = 1,
1199 	.adapter = {
1200 		{
1201 		.num_frontends = 1,
1202 		.fe = {{
1203 			.caps = DVB_USB_ADAP_HAS_PID_FILTER|
1204 				DVB_USB_ADAP_NEED_PID_FILTERING|
1205 				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1206 			.streaming_ctrl   = lme2510_streaming_ctrl,
1207 			.pid_filter_count = 15,
1208 			.pid_filter = lme2510_pid_filter,
1209 			.pid_filter_ctrl  = lme2510_pid_filter_ctrl,
1210 			.frontend_attach  = dm04_lme2510_frontend_attach,
1211 			.tuner_attach = dm04_lme2510_tuner,
1212 			/* parameter for the MPEG2-data transfer */
1213 			.stream = {
1214 				.type = USB_BULK,
1215 				.count = 10,
1216 				.endpoint = 0x8,
1217 				.u = {
1218 					.bulk = {
1219 						.buffersize = 4096,
1220 
1221 					}
1222 				}
1223 			}
1224 		}},
1225 		}
1226 	},
1227 	.rc.core = {
1228 		.protocol	= RC_TYPE_NEC,
1229 		.module_name	= "LME2510 Remote Control",
1230 		.allowed_protos	= RC_TYPE_NEC,
1231 		.rc_codes	= RC_MAP_LME2510,
1232 	},
1233 	.power_ctrl       = lme2510_powerup,
1234 	.identify_state   = lme2510_identify_state,
1235 	.i2c_algo         = &lme2510_i2c_algo,
1236 	.generic_bulk_ctrl_endpoint = 0,
1237 	.num_device_descs = 1,
1238 	.devices = {
1239 		{   "DM04_LME2510C_DVB-S",
1240 			{ &lme2510_table[1], NULL },
1241 			},
1242 	}
1243 };
1244 
lme2510_exit_int(struct dvb_usb_device * d)1245 static void *lme2510_exit_int(struct dvb_usb_device *d)
1246 {
1247 	struct lme2510_state *st = d->priv;
1248 	struct dvb_usb_adapter *adap = &d->adapter[0];
1249 	void *buffer = NULL;
1250 
1251 	if (adap != NULL) {
1252 		lme2510_kill_urb(&adap->fe_adap[0].stream);
1253 		adap->feedcount = 0;
1254 	}
1255 
1256 	if (st->usb_buffer != NULL) {
1257 		st->i2c_talk_onoff = 1;
1258 		st->signal_lock = 0;
1259 		st->signal_level = 0;
1260 		st->signal_sn = 0;
1261 		buffer = st->usb_buffer;
1262 	}
1263 
1264 	if (st->lme_urb != NULL) {
1265 		usb_kill_urb(st->lme_urb);
1266 		usb_free_coherent(d->udev, 128, st->buffer,
1267 				  st->lme_urb->transfer_dma);
1268 		info("Interrupt Service Stopped");
1269 	}
1270 
1271 	return buffer;
1272 }
1273 
lme2510_exit(struct usb_interface * intf)1274 static void lme2510_exit(struct usb_interface *intf)
1275 {
1276 	struct dvb_usb_device *d = usb_get_intfdata(intf);
1277 	void *usb_buffer;
1278 
1279 	if (d != NULL) {
1280 		usb_buffer = lme2510_exit_int(d);
1281 		dvb_usb_device_exit(intf);
1282 		if (usb_buffer != NULL)
1283 			kfree(usb_buffer);
1284 	}
1285 }
1286 
1287 static struct usb_driver lme2510_driver = {
1288 	.name		= "LME2510C_DVB-S",
1289 	.probe		= lme2510_probe,
1290 	.disconnect	= lme2510_exit,
1291 	.id_table	= lme2510_table,
1292 };
1293 
1294 module_usb_driver(lme2510_driver);
1295 
1296 MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>");
1297 MODULE_DESCRIPTION("LME2510(C) DVB-S USB2.0");
1298 MODULE_VERSION("1.91");
1299 MODULE_LICENSE("GPL");
1300