1// SPDX-License-Identifier: GPL-2.0-only
2/* DVB USB compliant linux driver for
3 *
4 * DM04/QQBOX DVB-S USB BOX	LME2510C + SHARP:BS2F7HZ7395
5 *				LME2510C + LG TDQY-P001F
6 *				LME2510C + BS2F7HZ0194
7 *				LME2510 + LG TDQY-P001F
8 *				LME2510 + BS2F7HZ0194
9 *
10 * MVB7395 (LME2510C+SHARP:BS2F7HZ7395)
11 * SHARP:BS2F7HZ7395 = (STV0288+Sharp IX2505V)
12 *
13 * MV001F (LME2510+LGTDQY-P001F)
14 * LG TDQY - P001F =(TDA8263 + TDA10086H)
15 *
16 * MVB0001F (LME2510C+LGTDQT-P001F)
17 *
18 * MV0194 (LME2510+SHARP:BS2F7HZ0194)
19 * SHARP:BS2F7HZ0194 = (STV0299+IX2410)
20 *
21 * MVB0194 (LME2510C+SHARP0194)
22 *
23 * LME2510C + M88RS2000
24 *
25 * For firmware see Documentation/admin-guide/media/lmedm04.rst
26 *
27 * I2C addresses:
28 * 0xd0 - STV0288	- Demodulator
29 * 0xc0 - Sharp IX2505V	- Tuner
30 * --
31 * 0x1c - TDA10086   - Demodulator
32 * 0xc0 - TDA8263    - Tuner
33 * --
34 * 0xd0 - STV0299	- Demodulator
35 * 0xc0 - IX2410	- Tuner
36 *
37 * VID = 3344  PID LME2510=1122 LME2510C=1120
38 *
39 * Copyright (C) 2010 Malcolm Priestley (tvboxspy@gmail.com)
40 * LME2510(C)(C) Leaguerme (Shenzhen) MicroElectronics Co., Ltd.
41 *
42 * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
43 *
44 * Known Issues :
45 *	LME2510: Non Intel USB chipsets fail to maintain High Speed on
46 * Boot or Hot Plug.
47 *
48 * QQbox suffers from noise on LNB voltage.
49 *
50 *	LME2510: SHARP:BS2F7HZ0194(MV0194) cannot cold reset and share system
51 * with other tuners. After a cold reset streaming will not start.
52 *
53 * M88RS2000 suffers from loss of lock.
54 */
55#define DVB_USB_LOG_PREFIX "LME2510(C)"
56#include <linux/usb.h>
57#include <linux/usb/input.h>
58#include <media/rc-core.h>
59
60#include "dvb_usb.h"
61#include "lmedm04.h"
62#include "tda826x.h"
63#include "tda10086.h"
64#include "stv0288.h"
65#include "ix2505v.h"
66#include "stv0299.h"
67#include "dvb-pll.h"
68#include "z0194a.h"
69#include "m88rs2000.h"
70#include "ts2020.h"
71
72
73#define LME2510_C_S7395	"dvb-usb-lme2510c-s7395.fw";
74#define LME2510_C_LG	"dvb-usb-lme2510c-lg.fw";
75#define LME2510_C_S0194	"dvb-usb-lme2510c-s0194.fw";
76#define LME2510_C_RS2000 "dvb-usb-lme2510c-rs2000.fw";
77#define LME2510_LG	"dvb-usb-lme2510-lg.fw";
78#define LME2510_S0194	"dvb-usb-lme2510-s0194.fw";
79
80/* debug */
81static int dvb_usb_lme2510_debug;
82#define lme_debug(var, level, args...) do { \
83	if ((var >= level)) \
84		pr_debug(DVB_USB_LOG_PREFIX": " args); \
85} while (0)
86#define deb_info(level, args...) lme_debug(dvb_usb_lme2510_debug, level, args)
87#define debug_data_snipet(level, name, p) \
88	 deb_info(level, name" (%8phN)", p);
89#define info(args...) pr_info(DVB_USB_LOG_PREFIX": "args)
90
91module_param_named(debug, dvb_usb_lme2510_debug, int, 0644);
92MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able)).");
93
94static int dvb_usb_lme2510_firmware;
95module_param_named(firmware, dvb_usb_lme2510_firmware, int, 0644);
96MODULE_PARM_DESC(firmware, "set default firmware 0=Sharp7395 1=LG");
97
98static int pid_filter;
99module_param_named(pid, pid_filter, int, 0644);
100MODULE_PARM_DESC(pid, "set default 0=default 1=off 2=on");
101
102
103DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
104
105#define TUNER_DEFAULT	0x0
106#define TUNER_LG	0x1
107#define TUNER_S7395	0x2
108#define TUNER_S0194	0x3
109#define TUNER_RS2000	0x4
110
111struct lme2510_state {
112	unsigned long int_urb_due;
113	enum fe_status lock_status;
114	u8 id;
115	u8 tuner_config;
116	u8 signal_level;
117	u8 signal_sn;
118	u8 time_key;
119	u8 i2c_talk_onoff;
120	u8 i2c_gate;
121	u8 i2c_tuner_gate_w;
122	u8 i2c_tuner_gate_r;
123	u8 i2c_tuner_addr;
124	u8 stream_on;
125	u8 pid_size;
126	u8 pid_off;
127	u8 int_buffer[128];
128	struct urb *lme_urb;
129	u8 usb_buffer[64];
130	/* Frontend original calls */
131	int (*fe_read_status)(struct dvb_frontend *, enum fe_status *);
132	int (*fe_read_signal_strength)(struct dvb_frontend *, u16 *);
133	int (*fe_read_snr)(struct dvb_frontend *, u16 *);
134	int (*fe_read_ber)(struct dvb_frontend *, u32 *);
135	int (*fe_read_ucblocks)(struct dvb_frontend *, u32 *);
136	int (*fe_set_voltage)(struct dvb_frontend *, enum fe_sec_voltage);
137	u8 dvb_usb_lme2510_firmware;
138};
139
140static int lme2510_usb_talk(struct dvb_usb_device *d,
141			    u8 *wbuf, int wlen, u8 *rbuf, int rlen)
142{
143	struct lme2510_state *st = d->priv;
144	int ret = 0;
145
146	if (max(wlen, rlen) > sizeof(st->usb_buffer))
147		return -EINVAL;
148
149	ret = mutex_lock_interruptible(&d->usb_mutex);
150	if (ret < 0)
151		return -EAGAIN;
152
153	memcpy(st->usb_buffer, wbuf, wlen);
154
155	ret = dvb_usbv2_generic_rw_locked(d, st->usb_buffer, wlen,
156					  st->usb_buffer, rlen);
157
158	if (rlen)
159		memcpy(rbuf, st->usb_buffer, rlen);
160
161	mutex_unlock(&d->usb_mutex);
162
163	return ret;
164}
165
166static int lme2510_stream_restart(struct dvb_usb_device *d)
167{
168	struct lme2510_state *st = d->priv;
169	u8 all_pids[] = LME_ALL_PIDS;
170	u8 stream_on[] = LME_ST_ON_W;
171	u8 rbuff[1];
172	if (st->pid_off)
173		lme2510_usb_talk(d, all_pids, sizeof(all_pids),
174				 rbuff, sizeof(rbuff));
175	/*Restart Stream Command*/
176	return lme2510_usb_talk(d, stream_on, sizeof(stream_on),
177				rbuff, sizeof(rbuff));
178}
179
180static int lme2510_enable_pid(struct dvb_usb_device *d, u8 index, u16 pid_out)
181{
182	struct lme2510_state *st = d->priv;
183	static u8 pid_buff[] = LME_ZERO_PID;
184	static u8 rbuf[1];
185	u8 pid_no = index * 2;
186	u8 pid_len = pid_no + 2;
187	int ret = 0;
188	deb_info(1, "PID Setting Pid %04x", pid_out);
189
190	if (st->pid_size == 0)
191		ret |= lme2510_stream_restart(d);
192
193	pid_buff[2] = pid_no;
194	pid_buff[3] = (u8)pid_out & 0xff;
195	pid_buff[4] = pid_no + 1;
196	pid_buff[5] = (u8)(pid_out >> 8);
197
198	if (pid_len > st->pid_size)
199		st->pid_size = pid_len;
200	pid_buff[7] = 0x80 + st->pid_size;
201
202	ret |= lme2510_usb_talk(d, pid_buff ,
203		sizeof(pid_buff) , rbuf, sizeof(rbuf));
204
205	if (st->stream_on)
206		ret |= lme2510_stream_restart(d);
207
208	return ret;
209}
210
211/* Convert range from 0x00-0xff to 0x0000-0xffff */
212#define reg_to_16bits(x)	((x) | ((x) << 8))
213
214static void lme2510_update_stats(struct dvb_usb_adapter *adap)
215{
216	struct lme2510_state *st = adap_to_priv(adap);
217	struct dvb_frontend *fe = adap->fe[0];
218	struct dtv_frontend_properties *c;
219	u32 s_tmp = 0, c_tmp = 0;
220
221	if (!fe)
222		return;
223
224	c = &fe->dtv_property_cache;
225
226	c->block_count.len = 1;
227	c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
228	c->block_error.len = 1;
229	c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
230	c->post_bit_count.len = 1;
231	c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
232	c->post_bit_error.len = 1;
233	c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
234
235	if (st->i2c_talk_onoff) {
236		c->strength.len = 1;
237		c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
238		c->cnr.len = 1;
239		c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
240		return;
241	}
242
243	switch (st->tuner_config) {
244	case TUNER_LG:
245		s_tmp = reg_to_16bits(0xff - st->signal_level);
246		c_tmp = reg_to_16bits(0xff - st->signal_sn);
247		break;
248	case TUNER_S7395:
249	case TUNER_S0194:
250		s_tmp = 0xffff - (((st->signal_level * 2) << 8) * 5 / 4);
251		c_tmp = reg_to_16bits((0xff - st->signal_sn - 0xa1) * 3);
252		break;
253	case TUNER_RS2000:
254		s_tmp = reg_to_16bits(st->signal_level);
255		c_tmp = reg_to_16bits(st->signal_sn);
256	}
257
258	c->strength.len = 1;
259	c->strength.stat[0].scale = FE_SCALE_RELATIVE;
260	c->strength.stat[0].uvalue = (u64)s_tmp;
261
262	c->cnr.len = 1;
263	c->cnr.stat[0].scale = FE_SCALE_RELATIVE;
264	c->cnr.stat[0].uvalue = (u64)c_tmp;
265}
266
267static void lme2510_int_response(struct urb *lme_urb)
268{
269	struct dvb_usb_adapter *adap = lme_urb->context;
270	struct lme2510_state *st = adap_to_priv(adap);
271	u8 *ibuf, *rbuf;
272	int i = 0, offset;
273	u32 key;
274	u8 signal_lock = 0;
275
276	switch (lme_urb->status) {
277	case 0:
278	case -ETIMEDOUT:
279		break;
280	case -ECONNRESET:
281	case -ENOENT:
282	case -ESHUTDOWN:
283		return;
284	default:
285		info("Error %x", lme_urb->status);
286		break;
287	}
288
289	rbuf = (u8 *) lme_urb->transfer_buffer;
290
291	offset = ((lme_urb->actual_length/8) > 4)
292			? 4 : (lme_urb->actual_length/8) ;
293
294	for (i = 0; i < offset; ++i) {
295		ibuf = (u8 *)&rbuf[i*8];
296		deb_info(5, "INT O/S C =%02x C/O=%02x Type =%02x%02x",
297		offset, i, ibuf[0], ibuf[1]);
298
299		switch (ibuf[0]) {
300		case 0xaa:
301			debug_data_snipet(1, "INT Remote data snippet", ibuf);
302			if (!adap_to_d(adap)->rc_dev)
303				break;
304
305			key = RC_SCANCODE_NEC32(ibuf[2] << 24 |
306						ibuf[3] << 16 |
307						ibuf[4] << 8  |
308						ibuf[5]);
309
310			deb_info(1, "INT Key = 0x%08x", key);
311			rc_keydown(adap_to_d(adap)->rc_dev, RC_PROTO_NEC32, key,
312				   0);
313			break;
314		case 0xbb:
315			switch (st->tuner_config) {
316			case TUNER_LG:
317				signal_lock = ibuf[2] & BIT(5);
318				st->signal_level = ibuf[4];
319				st->signal_sn = ibuf[3];
320				st->time_key = ibuf[7];
321				break;
322			case TUNER_S7395:
323			case TUNER_S0194:
324				/* Tweak for earlier firmware*/
325				if (ibuf[1] == 0x03) {
326					signal_lock = ibuf[2] & BIT(4);
327					st->signal_level = ibuf[3];
328					st->signal_sn = ibuf[4];
329				} else {
330					st->signal_level = ibuf[4];
331					st->signal_sn = ibuf[5];
332				}
333				break;
334			case TUNER_RS2000:
335				signal_lock = ibuf[2] & 0xee;
336				st->signal_level = ibuf[5];
337				st->signal_sn = ibuf[4];
338				st->time_key = ibuf[7];
339			default:
340				break;
341			}
342
343			/* Interrupt will also throw just BIT 0 as lock */
344			signal_lock |= ibuf[2] & BIT(0);
345
346			if (!signal_lock)
347				st->lock_status &= ~FE_HAS_LOCK;
348
349			lme2510_update_stats(adap);
350
351			debug_data_snipet(5, "INT Remote data snippet in", ibuf);
352		break;
353		case 0xcc:
354			debug_data_snipet(1, "INT Control data snippet", ibuf);
355			break;
356		default:
357			debug_data_snipet(1, "INT Unknown data snippet", ibuf);
358		break;
359		}
360	}
361
362	usb_submit_urb(lme_urb, GFP_ATOMIC);
363
364	/* Interrupt urb is due every 48 msecs while streaming the buffer
365	 * stores up to 4 periods if missed. Allow 200 msec for next interrupt.
366	 */
367	st->int_urb_due = jiffies + msecs_to_jiffies(200);
368}
369
370static int lme2510_int_read(struct dvb_usb_adapter *adap)
371{
372	struct dvb_usb_device *d = adap_to_d(adap);
373	struct lme2510_state *lme_int = adap_to_priv(adap);
374	struct usb_host_endpoint *ep;
375
376	lme_int->lme_urb = usb_alloc_urb(0, GFP_ATOMIC);
377
378	if (lme_int->lme_urb == NULL)
379			return -ENOMEM;
380
381	usb_fill_int_urb(lme_int->lme_urb,
382			 d->udev,
383			 usb_rcvintpipe(d->udev, 0xa),
384			 lme_int->int_buffer,
385			 sizeof(lme_int->int_buffer),
386			 lme2510_int_response,
387			 adap,
388			 8);
389
390	/* Quirk of pipe reporting PIPE_BULK but behaves as interrupt */
391	ep = usb_pipe_endpoint(d->udev, lme_int->lme_urb->pipe);
392
393	if (usb_endpoint_type(&ep->desc) == USB_ENDPOINT_XFER_BULK)
394		lme_int->lme_urb->pipe = usb_rcvbulkpipe(d->udev, 0xa);
395
396	usb_submit_urb(lme_int->lme_urb, GFP_ATOMIC);
397	info("INT Interrupt Service Started");
398
399	return 0;
400}
401
402static int lme2510_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
403{
404	struct dvb_usb_device *d = adap_to_d(adap);
405	struct lme2510_state *st = adap_to_priv(adap);
406	static u8 clear_pid_reg[] = LME_ALL_PIDS;
407	static u8 rbuf[1];
408	int ret = 0;
409
410	deb_info(1, "PID Clearing Filter");
411
412	mutex_lock(&d->i2c_mutex);
413
414	if (!onoff) {
415		ret |= lme2510_usb_talk(d, clear_pid_reg,
416			sizeof(clear_pid_reg), rbuf, sizeof(rbuf));
417		st->pid_off = true;
418	} else
419		st->pid_off = false;
420
421	st->pid_size = 0;
422
423	mutex_unlock(&d->i2c_mutex);
424
425	return 0;
426}
427
428static int lme2510_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
429	int onoff)
430{
431	struct dvb_usb_device *d = adap_to_d(adap);
432	int ret = 0;
433
434	deb_info(3, "%s PID=%04x Index=%04x onoff=%02x", __func__,
435		pid, index, onoff);
436
437	if (onoff) {
438		mutex_lock(&d->i2c_mutex);
439		ret |= lme2510_enable_pid(d, index, pid);
440		mutex_unlock(&d->i2c_mutex);
441	}
442
443
444	return ret;
445}
446
447
448static int lme2510_return_status(struct dvb_usb_device *d)
449{
450	int ret;
451	u8 *data;
452
453	data = kzalloc(6, GFP_KERNEL);
454	if (!data)
455		return -ENOMEM;
456
457	ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0),
458			      0x06, 0x80, 0x0302, 0x00,
459			      data, 0x6, 200);
460	if (ret != 6)
461		ret = -EINVAL;
462	else
463		ret = data[2];
464
465	info("Firmware Status: %6ph", data);
466
467	kfree(data);
468	return ret;
469}
470
471static int lme2510_msg(struct dvb_usb_device *d,
472		u8 *wbuf, int wlen, u8 *rbuf, int rlen)
473{
474	struct lme2510_state *st = d->priv;
475
476	st->i2c_talk_onoff = 1;
477
478	return lme2510_usb_talk(d, wbuf, wlen, rbuf, rlen);
479}
480
481static int lme2510_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
482				 int num)
483{
484	struct dvb_usb_device *d = i2c_get_adapdata(adap);
485	struct lme2510_state *st = d->priv;
486	static u8 obuf[64], ibuf[64];
487	int i, read, read_o;
488	u16 len;
489	u8 gate;
490
491	mutex_lock(&d->i2c_mutex);
492
493	for (i = 0; i < num; i++) {
494		read_o = msg[i].flags & I2C_M_RD;
495		read = i + 1 < num && msg[i + 1].flags & I2C_M_RD;
496		read |= read_o;
497		gate = (msg[i].addr == st->i2c_tuner_addr)
498			? (read)	? st->i2c_tuner_gate_r
499					: st->i2c_tuner_gate_w
500			: st->i2c_gate;
501		obuf[0] = gate | (read << 7);
502
503		if (gate == 5)
504			obuf[1] = (read) ? 2 : msg[i].len + 1;
505		else
506			obuf[1] = msg[i].len + read + 1;
507
508		obuf[2] = msg[i].addr << 1;
509
510		if (read) {
511			if (read_o)
512				len = 3;
513			else {
514				memcpy(&obuf[3], msg[i].buf, msg[i].len);
515				obuf[msg[i].len+3] = msg[i+1].len;
516				len = msg[i].len+4;
517			}
518		} else {
519			memcpy(&obuf[3], msg[i].buf, msg[i].len);
520			len = msg[i].len+3;
521		}
522
523		if (lme2510_msg(d, obuf, len, ibuf, 64) < 0) {
524			deb_info(1, "i2c transfer failed.");
525			mutex_unlock(&d->i2c_mutex);
526			return -EAGAIN;
527		}
528
529		if (read) {
530			if (read_o)
531				memcpy(msg[i].buf, &ibuf[1], msg[i].len);
532			else {
533				memcpy(msg[i+1].buf, &ibuf[1], msg[i+1].len);
534				i++;
535			}
536		}
537	}
538
539	mutex_unlock(&d->i2c_mutex);
540	return i;
541}
542
543static u32 lme2510_i2c_func(struct i2c_adapter *adapter)
544{
545	return I2C_FUNC_I2C;
546}
547
548static struct i2c_algorithm lme2510_i2c_algo = {
549	.master_xfer   = lme2510_i2c_xfer,
550	.functionality = lme2510_i2c_func,
551};
552
553static int lme2510_streaming_ctrl(struct dvb_frontend *fe, int onoff)
554{
555	struct dvb_usb_adapter *adap = fe_to_adap(fe);
556	struct dvb_usb_device *d = adap_to_d(adap);
557	struct lme2510_state *st = adap_to_priv(adap);
558	static u8 clear_reg_3[] = LME_ALL_PIDS;
559	static u8 rbuf[1];
560	int ret = 0, rlen = sizeof(rbuf);
561
562	deb_info(1, "STM  (%02x)", onoff);
563
564	/* Streaming is started by FE_HAS_LOCK */
565	if (onoff == 1)
566		st->stream_on = 1;
567	else {
568		deb_info(1, "STM Steam Off");
569		/* mutex is here only to avoid collision with I2C */
570		mutex_lock(&d->i2c_mutex);
571
572		ret = lme2510_usb_talk(d, clear_reg_3,
573				sizeof(clear_reg_3), rbuf, rlen);
574		st->stream_on = 0;
575		st->i2c_talk_onoff = 1;
576
577		mutex_unlock(&d->i2c_mutex);
578	}
579
580	return (ret < 0) ? -ENODEV : 0;
581}
582
583static u8 check_sum(u8 *p, u8 len)
584{
585	u8 sum = 0;
586	while (len--)
587		sum += *p++;
588	return sum;
589}
590
591static int lme2510_download_firmware(struct dvb_usb_device *d,
592					const struct firmware *fw)
593{
594	int ret = 0;
595	u8 *data;
596	u16 j, wlen, len_in, start, end;
597	u8 packet_size, dlen, i;
598	u8 *fw_data;
599
600	packet_size = 0x31;
601	len_in = 1;
602
603	data = kzalloc(128, GFP_KERNEL);
604	if (!data) {
605		info("FRM Could not start Firmware Download"\
606			"(Buffer allocation failed)");
607		return -ENOMEM;
608	}
609
610	info("FRM Starting Firmware Download");
611
612	for (i = 1; i < 3; i++) {
613		start = (i == 1) ? 0 : 512;
614		end = (i == 1) ? 512 : fw->size;
615		for (j = start; j < end; j += (packet_size+1)) {
616			fw_data = (u8 *)(fw->data + j);
617			if ((end - j) > packet_size) {
618				data[0] = i;
619				dlen = packet_size;
620			} else {
621				data[0] = i | 0x80;
622				dlen = (u8)(end - j)-1;
623			}
624			data[1] = dlen;
625			memcpy(&data[2], fw_data, dlen+1);
626			wlen = (u8) dlen + 4;
627			data[wlen-1] = check_sum(fw_data, dlen+1);
628			deb_info(1, "Data S=%02x:E=%02x CS= %02x", data[3],
629				data[dlen+2], data[dlen+3]);
630			lme2510_usb_talk(d, data, wlen, data, len_in);
631			ret |= (data[0] == 0x88) ? 0 : -1;
632		}
633	}
634
635	data[0] = 0x8a;
636	len_in = 1;
637	msleep(2000);
638	lme2510_usb_talk(d, data, len_in, data, len_in);
639	msleep(400);
640
641	if (ret < 0)
642		info("FRM Firmware Download Failed (%04x)" , ret);
643	else
644		info("FRM Firmware Download Completed - Resetting Device");
645
646	kfree(data);
647	return RECONNECTS_USB;
648}
649
650static void lme_coldreset(struct dvb_usb_device *d)
651{
652	u8 data[1] = {0};
653	data[0] = 0x0a;
654	info("FRM Firmware Cold Reset");
655
656	lme2510_usb_talk(d, data, sizeof(data), data, sizeof(data));
657
658	return;
659}
660
661static const char fw_c_s7395[] = LME2510_C_S7395;
662static const char fw_c_lg[] = LME2510_C_LG;
663static const char fw_c_s0194[] = LME2510_C_S0194;
664static const char fw_c_rs2000[] = LME2510_C_RS2000;
665static const char fw_lg[] = LME2510_LG;
666static const char fw_s0194[] = LME2510_S0194;
667
668static const char *lme_firmware_switch(struct dvb_usb_device *d, int cold)
669{
670	struct lme2510_state *st = d->priv;
671	struct usb_device *udev = d->udev;
672	const struct firmware *fw = NULL;
673	const char *fw_lme;
674	int ret = 0;
675
676	cold = (cold > 0) ? (cold & 1) : 0;
677
678	switch (le16_to_cpu(udev->descriptor.idProduct)) {
679	case 0x1122:
680		switch (st->dvb_usb_lme2510_firmware) {
681		default:
682		case TUNER_S0194:
683			fw_lme = fw_s0194;
684			ret = request_firmware(&fw, fw_lme, &udev->dev);
685			if (ret == 0) {
686				st->dvb_usb_lme2510_firmware = TUNER_S0194;
687				cold = 0;
688				break;
689			}
690			fallthrough;
691		case TUNER_LG:
692			fw_lme = fw_lg;
693			ret = request_firmware(&fw, fw_lme, &udev->dev);
694			if (ret == 0) {
695				st->dvb_usb_lme2510_firmware = TUNER_LG;
696				break;
697			}
698			st->dvb_usb_lme2510_firmware = TUNER_DEFAULT;
699			break;
700		}
701		break;
702	case 0x1120:
703		switch (st->dvb_usb_lme2510_firmware) {
704		default:
705		case TUNER_S7395:
706			fw_lme = fw_c_s7395;
707			ret = request_firmware(&fw, fw_lme, &udev->dev);
708			if (ret == 0) {
709				st->dvb_usb_lme2510_firmware = TUNER_S7395;
710				cold = 0;
711				break;
712			}
713			fallthrough;
714		case TUNER_LG:
715			fw_lme = fw_c_lg;
716			ret = request_firmware(&fw, fw_lme, &udev->dev);
717			if (ret == 0) {
718				st->dvb_usb_lme2510_firmware = TUNER_LG;
719				break;
720			}
721			fallthrough;
722		case TUNER_S0194:
723			fw_lme = fw_c_s0194;
724			ret = request_firmware(&fw, fw_lme, &udev->dev);
725			if (ret == 0) {
726				st->dvb_usb_lme2510_firmware = TUNER_S0194;
727				break;
728			}
729			st->dvb_usb_lme2510_firmware = TUNER_DEFAULT;
730			cold = 0;
731			break;
732		}
733		break;
734	case 0x22f0:
735		fw_lme = fw_c_rs2000;
736		st->dvb_usb_lme2510_firmware = TUNER_RS2000;
737		break;
738	default:
739		fw_lme = fw_c_s7395;
740	}
741
742	release_firmware(fw);
743
744	if (cold) {
745		dvb_usb_lme2510_firmware = st->dvb_usb_lme2510_firmware;
746		info("FRM Changing to %s firmware", fw_lme);
747		lme_coldreset(d);
748		return NULL;
749	}
750
751	return fw_lme;
752}
753
754static int lme2510_kill_urb(struct usb_data_stream *stream)
755{
756	int i;
757
758	for (i = 0; i < stream->urbs_submitted; i++) {
759		deb_info(3, "killing URB no. %d.", i);
760		/* stop the URB */
761		usb_kill_urb(stream->urb_list[i]);
762	}
763	stream->urbs_submitted = 0;
764
765	return 0;
766}
767
768static struct tda10086_config tda10086_config = {
769	.demod_address = 0x0e,
770	.invert = 0,
771	.diseqc_tone = 1,
772	.xtal_freq = TDA10086_XTAL_16M,
773};
774
775static struct stv0288_config lme_config = {
776	.demod_address = 0x68,
777	.min_delay_ms = 15,
778	.inittab = s7395_inittab,
779};
780
781static struct ix2505v_config lme_tuner = {
782	.tuner_address = 0x60,
783	.min_delay_ms = 100,
784	.tuner_gain = 0x0,
785	.tuner_chargepump = 0x3,
786};
787
788static struct stv0299_config sharp_z0194_config = {
789	.demod_address = 0x68,
790	.inittab = sharp_z0194a_inittab,
791	.mclk = 88000000UL,
792	.invert = 0,
793	.skip_reinit = 0,
794	.lock_output = STV0299_LOCKOUTPUT_1,
795	.volt13_op0_op1 = STV0299_VOLT13_OP1,
796	.min_delay_ms = 100,
797	.set_symbol_rate = sharp_z0194a_set_symbol_rate,
798};
799
800static struct m88rs2000_config m88rs2000_config = {
801	.demod_addr = 0x68
802};
803
804static struct ts2020_config ts2020_config = {
805	.tuner_address = 0x60,
806	.clk_out_div = 7,
807	.dont_poll = true
808};
809
810static int dm04_lme2510_set_voltage(struct dvb_frontend *fe,
811				    enum fe_sec_voltage voltage)
812{
813	struct dvb_usb_device *d = fe_to_d(fe);
814	struct lme2510_state *st = fe_to_priv(fe);
815	static u8 voltage_low[] = LME_VOLTAGE_L;
816	static u8 voltage_high[] = LME_VOLTAGE_H;
817	static u8 rbuf[1];
818	int ret = 0, len = 3, rlen = 1;
819
820	mutex_lock(&d->i2c_mutex);
821
822	switch (voltage) {
823	case SEC_VOLTAGE_18:
824		ret |= lme2510_usb_talk(d,
825			voltage_high, len, rbuf, rlen);
826		break;
827
828	case SEC_VOLTAGE_OFF:
829	case SEC_VOLTAGE_13:
830	default:
831		ret |= lme2510_usb_talk(d,
832				voltage_low, len, rbuf, rlen);
833		break;
834	}
835
836	mutex_unlock(&d->i2c_mutex);
837
838	if (st->tuner_config == TUNER_RS2000)
839		if (st->fe_set_voltage)
840			st->fe_set_voltage(fe, voltage);
841
842
843	return (ret < 0) ? -ENODEV : 0;
844}
845
846static int dm04_read_status(struct dvb_frontend *fe, enum fe_status *status)
847{
848	struct dvb_usb_device *d = fe_to_d(fe);
849	struct lme2510_state *st = d->priv;
850	int ret = 0;
851
852	if (st->i2c_talk_onoff) {
853		if (st->fe_read_status) {
854			ret = st->fe_read_status(fe, status);
855			if (ret < 0)
856				return ret;
857		}
858
859		st->lock_status = *status;
860
861		if (*status & FE_HAS_LOCK && st->stream_on) {
862			mutex_lock(&d->i2c_mutex);
863
864			st->i2c_talk_onoff = 0;
865			ret = lme2510_stream_restart(d);
866
867			mutex_unlock(&d->i2c_mutex);
868		}
869
870		return ret;
871	}
872
873	/* Timeout of interrupt reached on RS2000 */
874	if (st->tuner_config == TUNER_RS2000 &&
875	    time_after(jiffies, st->int_urb_due))
876		st->lock_status &= ~FE_HAS_LOCK;
877
878	*status = st->lock_status;
879
880	if (!(*status & FE_HAS_LOCK)) {
881		struct dvb_usb_adapter *adap = fe_to_adap(fe);
882
883		st->i2c_talk_onoff = 1;
884
885		lme2510_update_stats(adap);
886	}
887
888	return ret;
889}
890
891static int dm04_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
892{
893	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
894	struct lme2510_state *st = fe_to_priv(fe);
895
896	if (st->fe_read_signal_strength && !st->stream_on)
897		return st->fe_read_signal_strength(fe, strength);
898
899	if (c->strength.stat[0].scale == FE_SCALE_RELATIVE)
900		*strength = (u16)c->strength.stat[0].uvalue;
901	else
902		*strength = 0;
903
904	return 0;
905}
906
907static int dm04_read_snr(struct dvb_frontend *fe, u16 *snr)
908{
909	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
910	struct lme2510_state *st = fe_to_priv(fe);
911
912	if (st->fe_read_snr && !st->stream_on)
913		return st->fe_read_snr(fe, snr);
914
915	if (c->cnr.stat[0].scale == FE_SCALE_RELATIVE)
916		*snr = (u16)c->cnr.stat[0].uvalue;
917	else
918		*snr = 0;
919
920	return 0;
921}
922
923static int dm04_read_ber(struct dvb_frontend *fe, u32 *ber)
924{
925	struct lme2510_state *st = fe_to_priv(fe);
926
927	if (st->fe_read_ber && !st->stream_on)
928		return st->fe_read_ber(fe, ber);
929
930	*ber = 0;
931
932	return 0;
933}
934
935static int dm04_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
936{
937	struct lme2510_state *st = fe_to_priv(fe);
938
939	if (st->fe_read_ucblocks && !st->stream_on)
940		return st->fe_read_ucblocks(fe, ucblocks);
941
942	*ucblocks = 0;
943
944	return 0;
945}
946
947static int lme_name(struct dvb_usb_adapter *adap)
948{
949	struct dvb_usb_device *d = adap_to_d(adap);
950	struct lme2510_state *st = adap_to_priv(adap);
951	const char *desc = d->name;
952	static const char * const fe_name[] = {
953		"", " LG TDQY-P001F", " SHARP:BS2F7HZ7395",
954		" SHARP:BS2F7HZ0194", " RS2000"};
955	char *name = adap->fe[0]->ops.info.name;
956
957	strscpy(name, desc, 128);
958	strlcat(name, fe_name[st->tuner_config], 128);
959
960	return 0;
961}
962
963static int dm04_lme2510_frontend_attach(struct dvb_usb_adapter *adap)
964{
965	struct dvb_usb_device *d = adap_to_d(adap);
966	struct lme2510_state *st = d->priv;
967	int ret = 0;
968
969	st->i2c_talk_onoff = 1;
970	switch (le16_to_cpu(d->udev->descriptor.idProduct)) {
971	case 0x1122:
972	case 0x1120:
973		st->i2c_gate = 4;
974		adap->fe[0] = dvb_attach(tda10086_attach,
975			&tda10086_config, &d->i2c_adap);
976		if (adap->fe[0]) {
977			info("TUN Found Frontend TDA10086");
978			st->i2c_tuner_gate_w = 4;
979			st->i2c_tuner_gate_r = 4;
980			st->i2c_tuner_addr = 0x60;
981			st->tuner_config = TUNER_LG;
982			if (st->dvb_usb_lme2510_firmware != TUNER_LG) {
983				st->dvb_usb_lme2510_firmware = TUNER_LG;
984				ret = lme_firmware_switch(d, 1) ? 0 : -ENODEV;
985			}
986			break;
987		}
988
989		st->i2c_gate = 4;
990		adap->fe[0] = dvb_attach(stv0299_attach,
991				&sharp_z0194_config, &d->i2c_adap);
992		if (adap->fe[0]) {
993			info("FE Found Stv0299");
994			st->i2c_tuner_gate_w = 4;
995			st->i2c_tuner_gate_r = 5;
996			st->i2c_tuner_addr = 0x60;
997			st->tuner_config = TUNER_S0194;
998			if (st->dvb_usb_lme2510_firmware != TUNER_S0194) {
999				st->dvb_usb_lme2510_firmware = TUNER_S0194;
1000				ret = lme_firmware_switch(d, 1) ? 0 : -ENODEV;
1001			}
1002			break;
1003		}
1004
1005		st->i2c_gate = 5;
1006		adap->fe[0] = dvb_attach(stv0288_attach, &lme_config,
1007			&d->i2c_adap);
1008
1009		if (adap->fe[0]) {
1010			info("FE Found Stv0288");
1011			st->i2c_tuner_gate_w = 4;
1012			st->i2c_tuner_gate_r = 5;
1013			st->i2c_tuner_addr = 0x60;
1014			st->tuner_config = TUNER_S7395;
1015			if (st->dvb_usb_lme2510_firmware != TUNER_S7395) {
1016				st->dvb_usb_lme2510_firmware = TUNER_S7395;
1017				ret = lme_firmware_switch(d, 1) ? 0 : -ENODEV;
1018			}
1019			break;
1020		}
1021		fallthrough;
1022	case 0x22f0:
1023		st->i2c_gate = 5;
1024		adap->fe[0] = dvb_attach(m88rs2000_attach,
1025			&m88rs2000_config, &d->i2c_adap);
1026
1027		if (adap->fe[0]) {
1028			info("FE Found M88RS2000");
1029			st->i2c_tuner_gate_w = 5;
1030			st->i2c_tuner_gate_r = 5;
1031			st->i2c_tuner_addr = 0x60;
1032			st->tuner_config = TUNER_RS2000;
1033			st->fe_set_voltage =
1034				adap->fe[0]->ops.set_voltage;
1035		}
1036		break;
1037	}
1038
1039	if (adap->fe[0] == NULL) {
1040		info("DM04/QQBOX Not Powered up or not Supported");
1041		return -ENODEV;
1042	}
1043
1044	if (ret) {
1045		if (adap->fe[0]) {
1046			dvb_frontend_detach(adap->fe[0]);
1047			adap->fe[0] = NULL;
1048		}
1049		d->rc_map = NULL;
1050		return -ENODEV;
1051	}
1052
1053	st->fe_read_status = adap->fe[0]->ops.read_status;
1054	st->fe_read_signal_strength = adap->fe[0]->ops.read_signal_strength;
1055	st->fe_read_snr = adap->fe[0]->ops.read_snr;
1056	st->fe_read_ber = adap->fe[0]->ops.read_ber;
1057	st->fe_read_ucblocks = adap->fe[0]->ops.read_ucblocks;
1058
1059	adap->fe[0]->ops.read_status = dm04_read_status;
1060	adap->fe[0]->ops.read_signal_strength = dm04_read_signal_strength;
1061	adap->fe[0]->ops.read_snr = dm04_read_snr;
1062	adap->fe[0]->ops.read_ber = dm04_read_ber;
1063	adap->fe[0]->ops.read_ucblocks = dm04_read_ucblocks;
1064	adap->fe[0]->ops.set_voltage = dm04_lme2510_set_voltage;
1065
1066	ret = lme_name(adap);
1067	return ret;
1068}
1069
1070static int dm04_lme2510_tuner(struct dvb_usb_adapter *adap)
1071{
1072	struct dvb_usb_device *d = adap_to_d(adap);
1073	struct lme2510_state *st = adap_to_priv(adap);
1074	static const char * const tun_msg[] = {"", "TDA8263", "IX2505V", "DVB_PLL_OPERA", "RS2000"};
1075	int ret = 0;
1076
1077	switch (st->tuner_config) {
1078	case TUNER_LG:
1079		if (dvb_attach(tda826x_attach, adap->fe[0], 0x60,
1080			&d->i2c_adap, 1))
1081			ret = st->tuner_config;
1082		break;
1083	case TUNER_S7395:
1084		if (dvb_attach(ix2505v_attach , adap->fe[0], &lme_tuner,
1085			&d->i2c_adap))
1086			ret = st->tuner_config;
1087		break;
1088	case TUNER_S0194:
1089		if (dvb_attach(dvb_pll_attach , adap->fe[0], 0x60,
1090			&d->i2c_adap, DVB_PLL_OPERA1))
1091			ret = st->tuner_config;
1092		break;
1093	case TUNER_RS2000:
1094		if (dvb_attach(ts2020_attach, adap->fe[0],
1095			       &ts2020_config, &d->i2c_adap))
1096			ret = st->tuner_config;
1097		break;
1098	default:
1099		break;
1100	}
1101
1102	if (ret) {
1103		info("TUN Found %s tuner", tun_msg[ret]);
1104	} else {
1105		info("TUN No tuner found");
1106		return -ENODEV;
1107	}
1108
1109	/* Start the Interrupt*/
1110	ret = lme2510_int_read(adap);
1111	if (ret < 0) {
1112		info("INT Unable to start Interrupt Service");
1113		return -ENODEV;
1114	}
1115
1116	return ret;
1117}
1118
1119static int lme2510_powerup(struct dvb_usb_device *d, int onoff)
1120{
1121	struct lme2510_state *st = d->priv;
1122	static u8 lnb_on[] = LNB_ON;
1123	static u8 lnb_off[] = LNB_OFF;
1124	static u8 rbuf[1];
1125	int ret = 0, len = 3, rlen = 1;
1126
1127	mutex_lock(&d->i2c_mutex);
1128
1129	ret = lme2510_usb_talk(d, onoff ? lnb_on : lnb_off, len, rbuf, rlen);
1130
1131	st->i2c_talk_onoff = 1;
1132
1133	mutex_unlock(&d->i2c_mutex);
1134
1135	return ret;
1136}
1137
1138static int lme2510_get_adapter_count(struct dvb_usb_device *d)
1139{
1140	return 1;
1141}
1142
1143static int lme2510_identify_state(struct dvb_usb_device *d, const char **name)
1144{
1145	struct lme2510_state *st = d->priv;
1146	int status;
1147
1148	usb_reset_configuration(d->udev);
1149
1150	usb_set_interface(d->udev,
1151		d->props->bInterfaceNumber, 1);
1152
1153	st->dvb_usb_lme2510_firmware = dvb_usb_lme2510_firmware;
1154
1155	status = lme2510_return_status(d);
1156	if (status == 0x44) {
1157		*name = lme_firmware_switch(d, 0);
1158		return COLD;
1159	}
1160
1161	if (status != 0x47)
1162		return -EINVAL;
1163
1164	return WARM;
1165}
1166
1167static int lme2510_get_stream_config(struct dvb_frontend *fe, u8 *ts_type,
1168		struct usb_data_stream_properties *stream)
1169{
1170	struct dvb_usb_adapter *adap = fe_to_adap(fe);
1171	struct dvb_usb_device *d;
1172
1173	if (adap == NULL)
1174		return 0;
1175
1176	d = adap_to_d(adap);
1177
1178	/* Turn PID filter on the fly by module option */
1179	if (pid_filter == 2) {
1180		adap->pid_filtering  = true;
1181		adap->max_feed_count = 15;
1182	}
1183
1184	if (!(le16_to_cpu(d->udev->descriptor.idProduct)
1185		== 0x1122))
1186		stream->endpoint = 0x8;
1187
1188	return 0;
1189}
1190
1191static int lme2510_get_rc_config(struct dvb_usb_device *d,
1192	struct dvb_usb_rc *rc)
1193{
1194	rc->allowed_protos = RC_PROTO_BIT_NEC32;
1195	return 0;
1196}
1197
1198static void lme2510_exit(struct dvb_usb_device *d)
1199{
1200	struct lme2510_state *st = d->priv;
1201	struct dvb_usb_adapter *adap = &d->adapter[0];
1202
1203	if (adap != NULL) {
1204		lme2510_kill_urb(&adap->stream);
1205	}
1206
1207	if (st->lme_urb) {
1208		usb_kill_urb(st->lme_urb);
1209		usb_free_urb(st->lme_urb);
1210		info("Interrupt Service Stopped");
1211	}
1212}
1213
1214static struct dvb_usb_device_properties lme2510_props = {
1215	.driver_name = KBUILD_MODNAME,
1216	.owner = THIS_MODULE,
1217	.bInterfaceNumber = 0,
1218	.adapter_nr = adapter_nr,
1219	.size_of_priv = sizeof(struct lme2510_state),
1220	.generic_bulk_ctrl_endpoint = 0x01,
1221	.generic_bulk_ctrl_endpoint_response = 0x01,
1222
1223	.download_firmware = lme2510_download_firmware,
1224
1225	.power_ctrl       = lme2510_powerup,
1226	.identify_state   = lme2510_identify_state,
1227	.i2c_algo         = &lme2510_i2c_algo,
1228
1229	.frontend_attach  = dm04_lme2510_frontend_attach,
1230	.tuner_attach = dm04_lme2510_tuner,
1231	.get_stream_config = lme2510_get_stream_config,
1232	.get_adapter_count = lme2510_get_adapter_count,
1233	.streaming_ctrl   = lme2510_streaming_ctrl,
1234
1235	.get_rc_config = lme2510_get_rc_config,
1236
1237	.exit = lme2510_exit,
1238	.adapter = {
1239		{
1240			.caps = DVB_USB_ADAP_HAS_PID_FILTER|
1241				DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1242			.pid_filter_count = 15,
1243			.pid_filter = lme2510_pid_filter,
1244			.pid_filter_ctrl  = lme2510_pid_filter_ctrl,
1245			.stream =
1246			DVB_USB_STREAM_BULK(0x86, 10, 4096),
1247		},
1248		{
1249		}
1250	},
1251};
1252
1253static const struct usb_device_id lme2510_id_table[] = {
1254	{	DVB_USB_DEVICE(0x3344, 0x1122, &lme2510_props,
1255		"DM04_LME2510_DVB-S", RC_MAP_LME2510)	},
1256	{	DVB_USB_DEVICE(0x3344, 0x1120, &lme2510_props,
1257		"DM04_LME2510C_DVB-S", RC_MAP_LME2510)	},
1258	{	DVB_USB_DEVICE(0x3344, 0x22f0, &lme2510_props,
1259		"DM04_LME2510C_DVB-S RS2000", RC_MAP_LME2510)	},
1260	{}		/* Terminating entry */
1261};
1262
1263MODULE_DEVICE_TABLE(usb, lme2510_id_table);
1264
1265static struct usb_driver lme2510_driver = {
1266	.name		= KBUILD_MODNAME,
1267	.probe		= dvb_usbv2_probe,
1268	.disconnect	= dvb_usbv2_disconnect,
1269	.id_table	= lme2510_id_table,
1270	.no_dynamic_id = 1,
1271	.soft_unbind = 1,
1272};
1273
1274module_usb_driver(lme2510_driver);
1275
1276MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>");
1277MODULE_DESCRIPTION("LME2510(C) DVB-S USB2.0");
1278MODULE_VERSION("2.07");
1279MODULE_LICENSE("GPL");
1280MODULE_FIRMWARE(LME2510_C_S7395);
1281MODULE_FIRMWARE(LME2510_C_LG);
1282MODULE_FIRMWARE(LME2510_C_S0194);
1283MODULE_FIRMWARE(LME2510_C_RS2000);
1284MODULE_FIRMWARE(LME2510_LG);
1285MODULE_FIRMWARE(LME2510_S0194);
1286
1287