1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3    Driver for ST STV0299 demodulator
4
5    Copyright (C) 2001-2002 Convergence Integrated Media GmbH
6	<ralph@convergence.de>,
7	<holger@convergence.de>,
8	<js@convergence.de>
9
10
11    Philips SU1278/SH
12
13    Copyright (C) 2002 by Peter Schildmann <peter.schildmann@web.de>
14
15
16    LG TDQF-S001F
17
18    Copyright (C) 2002 Felix Domke <tmbinc@elitedvb.net>
19		     & Andreas Oberritter <obi@linuxtv.org>
20
21
22    Support for Samsung TBMU24112IMB used on Technisat SkyStar2 rev. 2.6B
23
24    Copyright (C) 2003 Vadim Catana <skystar@moldova.cc>:
25
26    Support for Philips SU1278 on Technotrend hardware
27
28    Copyright (C) 2004 Andrew de Quincey <adq_dvb@lidskialf.net>
29
30
31*/
32
33#include <linux/init.h>
34#include <linux/kernel.h>
35#include <linux/ktime.h>
36#include <linux/module.h>
37#include <linux/string.h>
38#include <linux/slab.h>
39#include <linux/jiffies.h>
40#include <asm/div64.h>
41
42#include <media/dvb_frontend.h>
43#include "stv0299.h"
44
45struct stv0299_state {
46	struct i2c_adapter* i2c;
47	const struct stv0299_config* config;
48	struct dvb_frontend frontend;
49
50	u8 initialised:1;
51	u32 tuner_frequency;
52	u32 symbol_rate;
53	enum fe_code_rate fec_inner;
54	int errmode;
55	u32 ucblocks;
56	u8 mcr_reg;
57};
58
59#define STATUS_BER 0
60#define STATUS_UCBLOCKS 1
61
62static int debug;
63static int debug_legacy_dish_switch;
64#define dprintk(args...) \
65	do { \
66		if (debug) printk(KERN_DEBUG "stv0299: " args); \
67	} while (0)
68
69
70static int stv0299_writeregI (struct stv0299_state* state, u8 reg, u8 data)
71{
72	int ret;
73	u8 buf [] = { reg, data };
74	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
75
76	ret = i2c_transfer (state->i2c, &msg, 1);
77
78	if (ret != 1)
79		dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, ret == %i)\n",
80			__func__, reg, data, ret);
81
82	return (ret != 1) ? -EREMOTEIO : 0;
83}
84
85static int stv0299_write(struct dvb_frontend* fe, const u8 buf[], int len)
86{
87	struct stv0299_state* state = fe->demodulator_priv;
88
89	if (len != 2)
90		return -EINVAL;
91
92	return stv0299_writeregI(state, buf[0], buf[1]);
93}
94
95static u8 stv0299_readreg (struct stv0299_state* state, u8 reg)
96{
97	int ret;
98	u8 b0 [] = { reg };
99	u8 b1 [] = { 0 };
100	struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
101			   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
102
103	ret = i2c_transfer (state->i2c, msg, 2);
104
105	if (ret != 2)
106		dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n",
107				__func__, reg, ret);
108
109	return b1[0];
110}
111
112static int stv0299_readregs (struct stv0299_state* state, u8 reg1, u8 *b, u8 len)
113{
114	int ret;
115	struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = &reg1, .len = 1 },
116			   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } };
117
118	ret = i2c_transfer (state->i2c, msg, 2);
119
120	if (ret != 2)
121		dprintk("%s: readreg error (ret == %i)\n", __func__, ret);
122
123	return ret == 2 ? 0 : ret;
124}
125
126static int stv0299_set_FEC(struct stv0299_state *state, enum fe_code_rate fec)
127{
128	dprintk ("%s\n", __func__);
129
130	switch (fec) {
131	case FEC_AUTO:
132	{
133		return stv0299_writeregI (state, 0x31, 0x1f);
134	}
135	case FEC_1_2:
136	{
137		return stv0299_writeregI (state, 0x31, 0x01);
138	}
139	case FEC_2_3:
140	{
141		return stv0299_writeregI (state, 0x31, 0x02);
142	}
143	case FEC_3_4:
144	{
145		return stv0299_writeregI (state, 0x31, 0x04);
146	}
147	case FEC_5_6:
148	{
149		return stv0299_writeregI (state, 0x31, 0x08);
150	}
151	case FEC_7_8:
152	{
153		return stv0299_writeregI (state, 0x31, 0x10);
154	}
155	default:
156	{
157		return -EINVAL;
158	}
159    }
160}
161
162static enum fe_code_rate stv0299_get_fec(struct stv0299_state *state)
163{
164	static const enum fe_code_rate fec_tab[] = {
165		FEC_2_3, FEC_3_4, FEC_5_6, FEC_7_8, FEC_1_2
166	};
167	u8 index;
168
169	dprintk ("%s\n", __func__);
170
171	index = stv0299_readreg (state, 0x1b);
172	index &= 0x7;
173
174	if (index > 4)
175		return FEC_AUTO;
176
177	return fec_tab [index];
178}
179
180static int stv0299_wait_diseqc_fifo (struct stv0299_state* state, int timeout)
181{
182	unsigned long start = jiffies;
183
184	dprintk ("%s\n", __func__);
185
186	while (stv0299_readreg(state, 0x0a) & 1) {
187		if (time_is_before_jiffies(start + timeout)) {
188			dprintk ("%s: timeout!!\n", __func__);
189			return -ETIMEDOUT;
190		}
191		msleep(10);
192	}
193
194	return 0;
195}
196
197static int stv0299_wait_diseqc_idle (struct stv0299_state* state, int timeout)
198{
199	unsigned long start = jiffies;
200
201	dprintk ("%s\n", __func__);
202
203	while ((stv0299_readreg(state, 0x0a) & 3) != 2 ) {
204		if (time_is_before_jiffies(start + timeout)) {
205			dprintk ("%s: timeout!!\n", __func__);
206			return -ETIMEDOUT;
207		}
208		msleep(10);
209	}
210
211	return 0;
212}
213
214static int stv0299_set_symbolrate (struct dvb_frontend* fe, u32 srate)
215{
216	struct stv0299_state* state = fe->demodulator_priv;
217	u64 big = srate;
218	u32 ratio;
219
220	// check rate is within limits
221	if ((srate < 1000000) || (srate > 45000000)) return -EINVAL;
222
223	// calculate value to program
224	big = big << 20;
225	big += (state->config->mclk-1); // round correctly
226	do_div(big, state->config->mclk);
227	ratio = big << 4;
228
229	return state->config->set_symbol_rate(fe, srate, ratio);
230}
231
232static int stv0299_get_symbolrate (struct stv0299_state* state)
233{
234	u32 Mclk = state->config->mclk / 4096L;
235	u32 srate;
236	s32 offset;
237	u8 sfr[3];
238	s8 rtf;
239
240	dprintk ("%s\n", __func__);
241
242	stv0299_readregs (state, 0x1f, sfr, 3);
243	stv0299_readregs (state, 0x1a, (u8 *)&rtf, 1);
244
245	srate = (sfr[0] << 8) | sfr[1];
246	srate *= Mclk;
247	srate /= 16;
248	srate += (sfr[2] >> 4) * Mclk / 256;
249	offset = (s32) rtf * (srate / 4096L);
250	offset /= 128;
251
252	dprintk ("%s : srate = %i\n", __func__, srate);
253	dprintk ("%s : ofset = %i\n", __func__, offset);
254
255	srate += offset;
256
257	srate += 1000;
258	srate /= 2000;
259	srate *= 2000;
260
261	return srate;
262}
263
264static int stv0299_send_diseqc_msg (struct dvb_frontend* fe,
265				    struct dvb_diseqc_master_cmd *m)
266{
267	struct stv0299_state* state = fe->demodulator_priv;
268	u8 val;
269	int i;
270
271	dprintk ("%s\n", __func__);
272
273	if (stv0299_wait_diseqc_idle (state, 100) < 0)
274		return -ETIMEDOUT;
275
276	val = stv0299_readreg (state, 0x08);
277
278	if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x6))  /* DiSEqC mode */
279		return -EREMOTEIO;
280
281	for (i=0; i<m->msg_len; i++) {
282		if (stv0299_wait_diseqc_fifo (state, 100) < 0)
283			return -ETIMEDOUT;
284
285		if (stv0299_writeregI (state, 0x09, m->msg[i]))
286			return -EREMOTEIO;
287	}
288
289	if (stv0299_wait_diseqc_idle (state, 100) < 0)
290		return -ETIMEDOUT;
291
292	return 0;
293}
294
295static int stv0299_send_diseqc_burst(struct dvb_frontend *fe,
296				     enum fe_sec_mini_cmd burst)
297{
298	struct stv0299_state* state = fe->demodulator_priv;
299	u8 val;
300
301	dprintk ("%s\n", __func__);
302
303	if (stv0299_wait_diseqc_idle (state, 100) < 0)
304		return -ETIMEDOUT;
305
306	val = stv0299_readreg (state, 0x08);
307
308	if (stv0299_writeregI (state, 0x08, (val & ~0x7) | 0x2))	/* burst mode */
309		return -EREMOTEIO;
310
311	if (stv0299_writeregI (state, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff))
312		return -EREMOTEIO;
313
314	if (stv0299_wait_diseqc_idle (state, 100) < 0)
315		return -ETIMEDOUT;
316
317	if (stv0299_writeregI (state, 0x08, val))
318		return -EREMOTEIO;
319
320	return 0;
321}
322
323static int stv0299_set_tone(struct dvb_frontend *fe,
324			    enum fe_sec_tone_mode tone)
325{
326	struct stv0299_state* state = fe->demodulator_priv;
327	u8 val;
328
329	if (stv0299_wait_diseqc_idle (state, 100) < 0)
330		return -ETIMEDOUT;
331
332	val = stv0299_readreg (state, 0x08);
333
334	switch (tone) {
335	case SEC_TONE_ON:
336		return stv0299_writeregI (state, 0x08, val | 0x3);
337
338	case SEC_TONE_OFF:
339		return stv0299_writeregI (state, 0x08, (val & ~0x3) | 0x02);
340
341	default:
342		return -EINVAL;
343	}
344}
345
346static int stv0299_set_voltage(struct dvb_frontend *fe,
347			       enum fe_sec_voltage voltage)
348{
349	struct stv0299_state* state = fe->demodulator_priv;
350	u8 reg0x08;
351	u8 reg0x0c;
352
353	dprintk("%s: %s\n", __func__,
354		voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
355		voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??");
356
357	reg0x08 = stv0299_readreg (state, 0x08);
358	reg0x0c = stv0299_readreg (state, 0x0c);
359
360	/*
361	 *  H/V switching over OP0, OP1 and OP2 are LNB power enable bits
362	 */
363	reg0x0c &= 0x0f;
364	reg0x08 = (reg0x08 & 0x3f) | (state->config->lock_output << 6);
365
366	switch (voltage) {
367	case SEC_VOLTAGE_13:
368		if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0)
369			reg0x0c |= 0x10; /* OP1 off, OP0 on */
370		else
371			reg0x0c |= 0x40; /* OP1 on, OP0 off */
372		break;
373	case SEC_VOLTAGE_18:
374		reg0x0c |= 0x50; /* OP1 on, OP0 on */
375		break;
376	case SEC_VOLTAGE_OFF:
377		/* LNB power off! */
378		reg0x08 = 0x00;
379		reg0x0c = 0x00;
380		break;
381	default:
382		return -EINVAL;
383	}
384
385	if (state->config->op0_off)
386		reg0x0c &= ~0x10;
387
388	stv0299_writeregI(state, 0x08, reg0x08);
389	return stv0299_writeregI(state, 0x0c, reg0x0c);
390}
391
392static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long cmd)
393{
394	struct stv0299_state* state = fe->demodulator_priv;
395	u8 reg0x08;
396	u8 reg0x0c;
397	u8 lv_mask = 0x40;
398	u8 last = 1;
399	int i;
400	ktime_t nexttime;
401	ktime_t tv[10];
402
403	reg0x08 = stv0299_readreg (state, 0x08);
404	reg0x0c = stv0299_readreg (state, 0x0c);
405	reg0x0c &= 0x0f;
406	stv0299_writeregI (state, 0x08, (reg0x08 & 0x3f) | (state->config->lock_output << 6));
407	if (state->config->volt13_op0_op1 == STV0299_VOLT13_OP0)
408		lv_mask = 0x10;
409
410	cmd = cmd << 1;
411	if (debug_legacy_dish_switch)
412		printk ("%s switch command: 0x%04lx\n",__func__, cmd);
413
414	nexttime = ktime_get_boottime();
415	if (debug_legacy_dish_switch)
416		tv[0] = nexttime;
417	stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */
418
419	dvb_frontend_sleep_until(&nexttime, 32000);
420
421	for (i=0; i<9; i++) {
422		if (debug_legacy_dish_switch)
423			tv[i+1] = ktime_get_boottime();
424		if((cmd & 0x01) != last) {
425			/* set voltage to (last ? 13V : 18V) */
426			stv0299_writeregI (state, 0x0c, reg0x0c | (last ? lv_mask : 0x50));
427			last = (last) ? 0 : 1;
428		}
429
430		cmd = cmd >> 1;
431
432		if (i != 8)
433			dvb_frontend_sleep_until(&nexttime, 8000);
434	}
435	if (debug_legacy_dish_switch) {
436		printk ("%s(%d): switch delay (should be 32k followed by all 8k\n",
437			__func__, fe->dvb->num);
438		for (i = 1; i < 10; i++)
439			printk("%d: %d\n", i,
440			       (int) ktime_us_delta(tv[i], tv[i-1]));
441	}
442
443	return 0;
444}
445
446static int stv0299_init (struct dvb_frontend* fe)
447{
448	struct stv0299_state* state = fe->demodulator_priv;
449	int i;
450	u8 reg;
451	u8 val;
452
453	dprintk("stv0299: init chip\n");
454
455	stv0299_writeregI(state, 0x02, 0x30 | state->mcr_reg);
456	msleep(50);
457
458	for (i = 0; ; i += 2)  {
459		reg = state->config->inittab[i];
460		val = state->config->inittab[i+1];
461		if (reg == 0xff && val == 0xff)
462			break;
463		if (reg == 0x0c && state->config->op0_off)
464			val &= ~0x10;
465		if (reg == 0x2)
466			state->mcr_reg = val & 0xf;
467		stv0299_writeregI(state, reg, val);
468	}
469
470	return 0;
471}
472
473static int stv0299_read_status(struct dvb_frontend *fe,
474			       enum fe_status *status)
475{
476	struct stv0299_state* state = fe->demodulator_priv;
477
478	u8 signal = 0xff - stv0299_readreg (state, 0x18);
479	u8 sync = stv0299_readreg (state, 0x1b);
480
481	dprintk ("%s : FE_READ_STATUS : VSTATUS: 0x%02x\n", __func__, sync);
482	*status = 0;
483
484	if (signal > 10)
485		*status |= FE_HAS_SIGNAL;
486
487	if (sync & 0x80)
488		*status |= FE_HAS_CARRIER;
489
490	if (sync & 0x10)
491		*status |= FE_HAS_VITERBI;
492
493	if (sync & 0x08)
494		*status |= FE_HAS_SYNC;
495
496	if ((sync & 0x98) == 0x98)
497		*status |= FE_HAS_LOCK;
498
499	return 0;
500}
501
502static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber)
503{
504	struct stv0299_state* state = fe->demodulator_priv;
505
506	if (state->errmode != STATUS_BER)
507		return -ENOSYS;
508
509	*ber = stv0299_readreg(state, 0x1e) | (stv0299_readreg(state, 0x1d) << 8);
510
511	return 0;
512}
513
514static int stv0299_read_signal_strength(struct dvb_frontend* fe, u16* strength)
515{
516	struct stv0299_state* state = fe->demodulator_priv;
517
518	s32 signal =  0xffff - ((stv0299_readreg (state, 0x18) << 8)
519			       | stv0299_readreg (state, 0x19));
520
521	dprintk ("%s : FE_READ_SIGNAL_STRENGTH : AGC2I: 0x%02x%02x, signal=0x%04x\n", __func__,
522		 stv0299_readreg (state, 0x18),
523		 stv0299_readreg (state, 0x19), (int) signal);
524
525	signal = signal * 5 / 4;
526	*strength = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal;
527
528	return 0;
529}
530
531static int stv0299_read_snr(struct dvb_frontend* fe, u16* snr)
532{
533	struct stv0299_state* state = fe->demodulator_priv;
534
535	s32 xsnr = 0xffff - ((stv0299_readreg (state, 0x24) << 8)
536			   | stv0299_readreg (state, 0x25));
537	xsnr = 3 * (xsnr - 0xa100);
538	*snr = (xsnr > 0xffff) ? 0xffff : (xsnr < 0) ? 0 : xsnr;
539
540	return 0;
541}
542
543static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
544{
545	struct stv0299_state* state = fe->demodulator_priv;
546
547	if (state->errmode != STATUS_UCBLOCKS)
548		return -ENOSYS;
549
550	state->ucblocks += stv0299_readreg(state, 0x1e);
551	state->ucblocks += (stv0299_readreg(state, 0x1d) << 8);
552	*ucblocks = state->ucblocks;
553
554	return 0;
555}
556
557static int stv0299_set_frontend(struct dvb_frontend *fe)
558{
559	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
560	struct stv0299_state* state = fe->demodulator_priv;
561	int invval = 0;
562
563	dprintk ("%s : FE_SET_FRONTEND\n", __func__);
564	if (state->config->set_ts_params)
565		state->config->set_ts_params(fe, 0);
566
567	// set the inversion
568	if (p->inversion == INVERSION_OFF) invval = 0;
569	else if (p->inversion == INVERSION_ON) invval = 1;
570	else {
571		printk("stv0299 does not support auto-inversion\n");
572		return -EINVAL;
573	}
574	if (state->config->invert) invval = (~invval) & 1;
575	stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval);
576
577	if (fe->ops.tuner_ops.set_params) {
578		fe->ops.tuner_ops.set_params(fe);
579		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
580	}
581
582	stv0299_set_FEC(state, p->fec_inner);
583	stv0299_set_symbolrate(fe, p->symbol_rate);
584	stv0299_writeregI(state, 0x22, 0x00);
585	stv0299_writeregI(state, 0x23, 0x00);
586
587	state->tuner_frequency = p->frequency;
588	state->fec_inner = p->fec_inner;
589	state->symbol_rate = p->symbol_rate;
590
591	return 0;
592}
593
594static int stv0299_get_frontend(struct dvb_frontend *fe,
595				struct dtv_frontend_properties *p)
596{
597	struct stv0299_state* state = fe->demodulator_priv;
598	s32 derot_freq;
599	int invval;
600
601	derot_freq = (s32)(s16) ((stv0299_readreg (state, 0x22) << 8)
602				| stv0299_readreg (state, 0x23));
603
604	derot_freq *= (state->config->mclk >> 16);
605	derot_freq += 500;
606	derot_freq /= 1000;
607
608	p->frequency += derot_freq;
609
610	invval = stv0299_readreg (state, 0x0c) & 1;
611	if (state->config->invert) invval = (~invval) & 1;
612	p->inversion = invval ? INVERSION_ON : INVERSION_OFF;
613
614	p->fec_inner = stv0299_get_fec(state);
615	p->symbol_rate = stv0299_get_symbolrate(state);
616
617	return 0;
618}
619
620static int stv0299_sleep(struct dvb_frontend* fe)
621{
622	struct stv0299_state* state = fe->demodulator_priv;
623
624	stv0299_writeregI(state, 0x02, 0xb0 | state->mcr_reg);
625	state->initialised = 0;
626
627	return 0;
628}
629
630static int stv0299_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
631{
632	struct stv0299_state* state = fe->demodulator_priv;
633
634	if (enable) {
635		stv0299_writeregI(state, 0x05, 0xb5);
636	} else {
637		stv0299_writeregI(state, 0x05, 0x35);
638	}
639	udelay(1);
640	return 0;
641}
642
643static int stv0299_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
644{
645	struct stv0299_state* state = fe->demodulator_priv;
646	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
647
648	fesettings->min_delay_ms = state->config->min_delay_ms;
649	if (p->symbol_rate < 10000000) {
650		fesettings->step_size = p->symbol_rate / 32000;
651		fesettings->max_drift = 5000;
652	} else {
653		fesettings->step_size = p->symbol_rate / 16000;
654		fesettings->max_drift = p->symbol_rate / 2000;
655	}
656	return 0;
657}
658
659static void stv0299_release(struct dvb_frontend* fe)
660{
661	struct stv0299_state* state = fe->demodulator_priv;
662	kfree(state);
663}
664
665static const struct dvb_frontend_ops stv0299_ops;
666
667struct dvb_frontend* stv0299_attach(const struct stv0299_config* config,
668				    struct i2c_adapter* i2c)
669{
670	struct stv0299_state* state = NULL;
671	int id;
672
673	/* allocate memory for the internal state */
674	state = kzalloc(sizeof(struct stv0299_state), GFP_KERNEL);
675	if (state == NULL) goto error;
676
677	/* setup the state */
678	state->config = config;
679	state->i2c = i2c;
680	state->initialised = 0;
681	state->tuner_frequency = 0;
682	state->symbol_rate = 0;
683	state->fec_inner = 0;
684	state->errmode = STATUS_BER;
685
686	/* check if the demod is there */
687	stv0299_writeregI(state, 0x02, 0x30); /* standby off */
688	msleep(200);
689	id = stv0299_readreg(state, 0x00);
690
691	/* register 0x00 contains 0xa1 for STV0299 and STV0299B */
692	/* register 0x00 might contain 0x80 when returning from standby */
693	if (id != 0xa1 && id != 0x80) goto error;
694
695	/* create dvb_frontend */
696	memcpy(&state->frontend.ops, &stv0299_ops, sizeof(struct dvb_frontend_ops));
697	state->frontend.demodulator_priv = state;
698	return &state->frontend;
699
700error:
701	kfree(state);
702	return NULL;
703}
704
705static const struct dvb_frontend_ops stv0299_ops = {
706	.delsys = { SYS_DVBS },
707	.info = {
708		.name			= "ST STV0299 DVB-S",
709		.frequency_min_hz	=  950 * MHz,
710		.frequency_max_hz	= 2150 * MHz,
711		.frequency_stepsize_hz	=  125 * kHz,
712		.symbol_rate_min	= 1000000,
713		.symbol_rate_max	= 45000000,
714		.symbol_rate_tolerance	= 500,	/* ppm */
715		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
716		      FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
717		      FE_CAN_QPSK |
718		      FE_CAN_FEC_AUTO
719	},
720
721	.release = stv0299_release,
722
723	.init = stv0299_init,
724	.sleep = stv0299_sleep,
725	.write = stv0299_write,
726	.i2c_gate_ctrl = stv0299_i2c_gate_ctrl,
727
728	.set_frontend = stv0299_set_frontend,
729	.get_frontend = stv0299_get_frontend,
730	.get_tune_settings = stv0299_get_tune_settings,
731
732	.read_status = stv0299_read_status,
733	.read_ber = stv0299_read_ber,
734	.read_signal_strength = stv0299_read_signal_strength,
735	.read_snr = stv0299_read_snr,
736	.read_ucblocks = stv0299_read_ucblocks,
737
738	.diseqc_send_master_cmd = stv0299_send_diseqc_msg,
739	.diseqc_send_burst = stv0299_send_diseqc_burst,
740	.set_tone = stv0299_set_tone,
741	.set_voltage = stv0299_set_voltage,
742	.dishnetwork_send_legacy_command = stv0299_send_legacy_dish_cmd,
743};
744
745module_param(debug_legacy_dish_switch, int, 0444);
746MODULE_PARM_DESC(debug_legacy_dish_switch, "Enable timing analysis for Dish Network legacy switches");
747
748module_param(debug, int, 0644);
749MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
750
751MODULE_DESCRIPTION("ST STV0299 DVB Demodulator driver");
752MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, Andreas Oberritter, Andrew de Quincey, Kenneth Aafly");
753MODULE_LICENSE("GPL");
754
755EXPORT_SYMBOL_GPL(stv0299_attach);
756