1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3     TDA10023  - DVB-C decoder
4     (as used in Philips CU1216-3 NIM and the Reelbox DVB-C tuner card)
5 
6     Copyright (C) 2005 Georg Acher, BayCom GmbH (acher at baycom dot de)
7     Copyright (c) 2006 Hartmut Birr (e9hack at gmail dot com)
8 
9     Remotely based on tda10021.c
10     Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
11     Copyright (C) 2004 Markus Schulz <msc@antzsystem.de>
12 		   Support for TDA10021
13 
14 */
15 
16 #include <linux/delay.h>
17 #include <linux/errno.h>
18 #include <linux/init.h>
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/string.h>
22 #include <linux/slab.h>
23 
24 #include <asm/div64.h>
25 
26 #include <media/dvb_frontend.h>
27 #include "tda1002x.h"
28 
29 #define REG0_INIT_VAL 0x23
30 
31 struct tda10023_state {
32 	struct i2c_adapter* i2c;
33 	/* configuration settings */
34 	const struct tda10023_config *config;
35 	struct dvb_frontend frontend;
36 
37 	u8 pwm;
38 	u8 reg0;
39 
40 	/* clock settings */
41 	u32 xtal;
42 	u8 pll_m;
43 	u8 pll_p;
44 	u8 pll_n;
45 	u32 sysclk;
46 };
47 
48 #define dprintk(x...)
49 
50 static int verbose;
51 
52 static u8 tda10023_readreg (struct tda10023_state* state, u8 reg)
53 {
54 	u8 b0 [] = { reg };
55 	u8 b1 [] = { 0 };
56 	struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
57 				  { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
58 	int ret;
59 
60 	ret = i2c_transfer (state->i2c, msg, 2);
61 	if (ret != 2) {
62 		int num = state->frontend.dvb ? state->frontend.dvb->num : -1;
63 		printk(KERN_ERR "DVB: TDA10023(%d): %s: readreg error (reg == 0x%02x, ret == %i)\n",
64 			num, __func__, reg, ret);
65 	}
66 	return b1[0];
67 }
68 
69 static int tda10023_writereg (struct tda10023_state* state, u8 reg, u8 data)
70 {
71 	u8 buf[] = { reg, data };
72 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
73 	int ret;
74 
75 	ret = i2c_transfer (state->i2c, &msg, 1);
76 	if (ret != 1) {
77 		int num = state->frontend.dvb ? state->frontend.dvb->num : -1;
78 		printk(KERN_ERR "DVB: TDA10023(%d): %s, writereg error (reg == 0x%02x, val == 0x%02x, ret == %i)\n",
79 			num, __func__, reg, data, ret);
80 	}
81 	return (ret != 1) ? -EREMOTEIO : 0;
82 }
83 
84 
85 static int tda10023_writebit (struct tda10023_state* state, u8 reg, u8 mask,u8 data)
86 {
87 	if (mask==0xff)
88 		return tda10023_writereg(state, reg, data);
89 	else {
90 		u8 val;
91 		val=tda10023_readreg(state,reg);
92 		val&=~mask;
93 		val|=(data&mask);
94 		return tda10023_writereg(state, reg, val);
95 	}
96 }
97 
98 static void tda10023_writetab(struct tda10023_state* state, u8* tab)
99 {
100 	u8 r,m,v;
101 	while (1) {
102 		r=*tab++;
103 		m=*tab++;
104 		v=*tab++;
105 		if (r==0xff) {
106 			if (m==0xff)
107 				break;
108 			else
109 				msleep(m);
110 		}
111 		else
112 			tda10023_writebit(state,r,m,v);
113 	}
114 }
115 
116 //get access to tuner
117 static int lock_tuner(struct tda10023_state* state)
118 {
119 	u8 buf[2] = { 0x0f, 0xc0 };
120 	struct i2c_msg msg = {.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2};
121 
122 	if(i2c_transfer(state->i2c, &msg, 1) != 1)
123 	{
124 		printk("tda10023: lock tuner fails\n");
125 		return -EREMOTEIO;
126 	}
127 	return 0;
128 }
129 
130 //release access from tuner
131 static int unlock_tuner(struct tda10023_state* state)
132 {
133 	u8 buf[2] = { 0x0f, 0x40 };
134 	struct i2c_msg msg_post={.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2};
135 
136 	if(i2c_transfer(state->i2c, &msg_post, 1) != 1)
137 	{
138 		printk("tda10023: unlock tuner fails\n");
139 		return -EREMOTEIO;
140 	}
141 	return 0;
142 }
143 
144 static int tda10023_setup_reg0 (struct tda10023_state* state, u8 reg0)
145 {
146 	reg0 |= state->reg0 & 0x63;
147 
148 	tda10023_writereg (state, 0x00, reg0 & 0xfe);
149 	tda10023_writereg (state, 0x00, reg0 | 0x01);
150 
151 	state->reg0 = reg0;
152 	return 0;
153 }
154 
155 static int tda10023_set_symbolrate (struct tda10023_state* state, u32 sr)
156 {
157 	s32 BDR;
158 	s32 BDRI;
159 	s16 SFIL=0;
160 	u16 NDEC = 0;
161 
162 	/* avoid floating point operations multiplying syscloc and divider
163 	   by 10 */
164 	u32 sysclk_x_10 = state->sysclk * 10;
165 
166 	if (sr < (u32)(sysclk_x_10/984)) {
167 		NDEC=3;
168 		SFIL=1;
169 	} else if (sr < (u32)(sysclk_x_10/640)) {
170 		NDEC=3;
171 		SFIL=0;
172 	} else if (sr < (u32)(sysclk_x_10/492)) {
173 		NDEC=2;
174 		SFIL=1;
175 	} else if (sr < (u32)(sysclk_x_10/320)) {
176 		NDEC=2;
177 		SFIL=0;
178 	} else if (sr < (u32)(sysclk_x_10/246)) {
179 		NDEC=1;
180 		SFIL=1;
181 	} else if (sr < (u32)(sysclk_x_10/160)) {
182 		NDEC=1;
183 		SFIL=0;
184 	} else if (sr < (u32)(sysclk_x_10/123)) {
185 		NDEC=0;
186 		SFIL=1;
187 	}
188 
189 	BDRI = (state->sysclk)*16;
190 	BDRI>>=NDEC;
191 	BDRI +=sr/2;
192 	BDRI /=sr;
193 
194 	if (BDRI>255)
195 		BDRI=255;
196 
197 	{
198 		u64 BDRX;
199 
200 		BDRX=1<<(24+NDEC);
201 		BDRX*=sr;
202 		do_div(BDRX, state->sysclk);	/* BDRX/=SYSCLK; */
203 
204 		BDR=(s32)BDRX;
205 	}
206 	dprintk("Symbolrate %i, BDR %i BDRI %i, NDEC %i\n",
207 		sr, BDR, BDRI, NDEC);
208 	tda10023_writebit (state, 0x03, 0xc0, NDEC<<6);
209 	tda10023_writereg (state, 0x0a, BDR&255);
210 	tda10023_writereg (state, 0x0b, (BDR>>8)&255);
211 	tda10023_writereg (state, 0x0c, (BDR>>16)&31);
212 	tda10023_writereg (state, 0x0d, BDRI);
213 	tda10023_writereg (state, 0x3d, (SFIL<<7));
214 	return 0;
215 }
216 
217 static int tda10023_init (struct dvb_frontend *fe)
218 {
219 	struct tda10023_state* state = fe->demodulator_priv;
220 	u8 tda10023_inittab[] = {
221 /*        reg  mask val */
222 /* 000 */ 0x2a, 0xff, 0x02,  /* PLL3, Bypass, Power Down */
223 /* 003 */ 0xff, 0x64, 0x00,  /* Sleep 100ms */
224 /* 006 */ 0x2a, 0xff, 0x03,  /* PLL3, Bypass, Power Down */
225 /* 009 */ 0xff, 0x64, 0x00,  /* Sleep 100ms */
226 			   /* PLL1 */
227 /* 012 */ 0x28, 0xff, (state->pll_m-1),
228 			   /* PLL2 */
229 /* 015 */ 0x29, 0xff, ((state->pll_p-1)<<6)|(state->pll_n-1),
230 			   /* GPR FSAMPLING=1 */
231 /* 018 */ 0x00, 0xff, REG0_INIT_VAL,
232 /* 021 */ 0x2a, 0xff, 0x08,  /* PLL3 PSACLK=1 */
233 /* 024 */ 0xff, 0x64, 0x00,  /* Sleep 100ms */
234 /* 027 */ 0x1f, 0xff, 0x00,  /* RESET */
235 /* 030 */ 0xff, 0x64, 0x00,  /* Sleep 100ms */
236 /* 033 */ 0xe6, 0x0c, 0x04,  /* RSCFG_IND */
237 /* 036 */ 0x10, 0xc0, 0x80,  /* DECDVBCFG1 PBER=1 */
238 
239 /* 039 */ 0x0e, 0xff, 0x82,  /* GAIN1 */
240 /* 042 */ 0x03, 0x08, 0x08,  /* CLKCONF DYN=1 */
241 /* 045 */ 0x2e, 0xbf, 0x30,  /* AGCCONF2 TRIAGC=0,POSAGC=ENAGCIF=1
242 				       PPWMTUN=0 PPWMIF=0 */
243 /* 048 */ 0x01, 0xff, 0x30,  /* AGCREF */
244 /* 051 */ 0x1e, 0x84, 0x84,  /* CONTROL SACLK_ON=1 */
245 /* 054 */ 0x1b, 0xff, 0xc8,  /* ADC TWOS=1 */
246 /* 057 */ 0x3b, 0xff, 0xff,  /* IFMAX */
247 /* 060 */ 0x3c, 0xff, 0x00,  /* IFMIN */
248 /* 063 */ 0x34, 0xff, 0x00,  /* PWMREF */
249 /* 066 */ 0x35, 0xff, 0xff,  /* TUNMAX */
250 /* 069 */ 0x36, 0xff, 0x00,  /* TUNMIN */
251 /* 072 */ 0x06, 0xff, 0x7f,  /* EQCONF1 POSI=7 ENADAPT=ENEQUAL=DFE=1 */
252 /* 075 */ 0x1c, 0x30, 0x30,  /* EQCONF2 STEPALGO=SGNALGO=1 */
253 /* 078 */ 0x37, 0xff, 0xf6,  /* DELTAF_LSB */
254 /* 081 */ 0x38, 0xff, 0xff,  /* DELTAF_MSB */
255 /* 084 */ 0x02, 0xff, 0x93,  /* AGCCONF1  IFS=1 KAGCIF=2 KAGCTUN=3 */
256 /* 087 */ 0x2d, 0xff, 0xf6,  /* SWEEP SWPOS=1 SWDYN=7 SWSTEP=1 SWLEN=2 */
257 /* 090 */ 0x04, 0x10, 0x00,  /* SWRAMP=1 */
258 /* 093 */ 0x12, 0xff, TDA10023_OUTPUT_MODE_PARALLEL_B, /*
259 				INTP1 POCLKP=1 FEL=1 MFS=0 */
260 /* 096 */ 0x2b, 0x01, 0xa1,  /* INTS1 */
261 /* 099 */ 0x20, 0xff, 0x04,  /* INTP2 SWAPP=? MSBFIRSTP=? INTPSEL=? */
262 /* 102 */ 0x2c, 0xff, 0x0d,  /* INTP/S TRIP=0 TRIS=0 */
263 /* 105 */ 0xc4, 0xff, 0x00,
264 /* 108 */ 0xc3, 0x30, 0x00,
265 /* 111 */ 0xb5, 0xff, 0x19,  /* ERAGC_THD */
266 /* 114 */ 0x00, 0x03, 0x01,  /* GPR, CLBS soft reset */
267 /* 117 */ 0x00, 0x03, 0x03,  /* GPR, CLBS soft reset */
268 /* 120 */ 0xff, 0x64, 0x00,  /* Sleep 100ms */
269 /* 123 */ 0xff, 0xff, 0xff
270 };
271 	dprintk("DVB: TDA10023(%d): init chip\n", fe->dvb->num);
272 
273 	/* override default values if set in config */
274 	if (state->config->deltaf) {
275 		tda10023_inittab[80] = (state->config->deltaf & 0xff);
276 		tda10023_inittab[83] = (state->config->deltaf >> 8);
277 	}
278 
279 	if (state->config->output_mode)
280 		tda10023_inittab[95] = state->config->output_mode;
281 
282 	tda10023_writetab(state, tda10023_inittab);
283 
284 	return 0;
285 }
286 
287 struct qam_params {
288 	u8 qam, lockthr, mseth, aref, agcrefnyq, eragnyq_thd;
289 };
290 
291 static int tda10023_set_parameters(struct dvb_frontend *fe)
292 {
293 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
294 	u32 delsys  = c->delivery_system;
295 	unsigned qam = c->modulation;
296 	bool is_annex_c;
297 	struct tda10023_state* state = fe->demodulator_priv;
298 	static const struct qam_params qam_params[] = {
299 		/* Modulation  QAM    LOCKTHR   MSETH   AREF AGCREFNYQ ERAGCNYQ_THD */
300 		[QPSK]    = { (5<<2),  0x78,    0x8c,   0x96,   0x78,   0x4c  },
301 		[QAM_16]  = { (0<<2),  0x87,    0xa2,   0x91,   0x8c,   0x57  },
302 		[QAM_32]  = { (1<<2),  0x64,    0x74,   0x96,   0x8c,   0x57  },
303 		[QAM_64]  = { (2<<2),  0x46,    0x43,   0x6a,   0x6a,   0x44  },
304 		[QAM_128] = { (3<<2),  0x36,    0x34,   0x7e,   0x78,   0x4c  },
305 		[QAM_256] = { (4<<2),  0x26,    0x23,   0x6c,   0x5c,   0x3c  },
306 	};
307 
308 	switch (delsys) {
309 	case SYS_DVBC_ANNEX_A:
310 		is_annex_c = false;
311 		break;
312 	case SYS_DVBC_ANNEX_C:
313 		is_annex_c = true;
314 		break;
315 	default:
316 		return -EINVAL;
317 	}
318 
319 	/*
320 	 * gcc optimizes the code below the same way as it would code:
321 	 *		 "if (qam > 5) return -EINVAL;"
322 	 * Yet, the code is clearer, as it shows what QAM standards are
323 	 * supported by the driver, and avoids the usage of magic numbers on
324 	 * it.
325 	 */
326 	switch (qam) {
327 	case QPSK:
328 	case QAM_16:
329 	case QAM_32:
330 	case QAM_64:
331 	case QAM_128:
332 	case QAM_256:
333 		break;
334 	default:
335 		return -EINVAL;
336 	}
337 
338 	if (fe->ops.tuner_ops.set_params) {
339 		fe->ops.tuner_ops.set_params(fe);
340 		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
341 	}
342 
343 	tda10023_set_symbolrate(state, c->symbol_rate);
344 	tda10023_writereg(state, 0x05, qam_params[qam].lockthr);
345 	tda10023_writereg(state, 0x08, qam_params[qam].mseth);
346 	tda10023_writereg(state, 0x09, qam_params[qam].aref);
347 	tda10023_writereg(state, 0xb4, qam_params[qam].agcrefnyq);
348 	tda10023_writereg(state, 0xb6, qam_params[qam].eragnyq_thd);
349 #if 0
350 	tda10023_writereg(state, 0x04, (c->inversion ? 0x12 : 0x32));
351 	tda10023_writebit(state, 0x04, 0x60, (c->inversion ? 0 : 0x20));
352 #endif
353 	tda10023_writebit(state, 0x04, 0x40, 0x40);
354 
355 	if (is_annex_c)
356 		tda10023_writebit(state, 0x3d, 0xfc, 0x03);
357 	else
358 		tda10023_writebit(state, 0x3d, 0xfc, 0x02);
359 
360 	tda10023_setup_reg0(state, qam_params[qam].qam);
361 
362 	return 0;
363 }
364 
365 static int tda10023_read_status(struct dvb_frontend *fe,
366 				enum fe_status *status)
367 {
368 	struct tda10023_state* state = fe->demodulator_priv;
369 	int sync;
370 
371 	*status = 0;
372 
373 	//0x11[1] == CARLOCK -> Carrier locked
374 	//0x11[2] == FSYNC -> Frame synchronisation
375 	//0x11[3] == FEL -> Front End locked
376 	//0x11[6] == NODVB -> DVB Mode Information
377 	sync = tda10023_readreg (state, 0x11);
378 
379 	if (sync & 2)
380 		*status |= FE_HAS_SIGNAL|FE_HAS_CARRIER;
381 
382 	if (sync & 4)
383 		*status |= FE_HAS_SYNC|FE_HAS_VITERBI;
384 
385 	if (sync & 8)
386 		*status |= FE_HAS_LOCK;
387 
388 	return 0;
389 }
390 
391 static int tda10023_read_ber(struct dvb_frontend* fe, u32* ber)
392 {
393 	struct tda10023_state* state = fe->demodulator_priv;
394 	u8 a,b,c;
395 	a=tda10023_readreg(state, 0x14);
396 	b=tda10023_readreg(state, 0x15);
397 	c=tda10023_readreg(state, 0x16)&0xf;
398 	tda10023_writebit (state, 0x10, 0xc0, 0x00);
399 
400 	*ber = a | (b<<8)| (c<<16);
401 	return 0;
402 }
403 
404 static int tda10023_read_signal_strength(struct dvb_frontend* fe, u16* strength)
405 {
406 	struct tda10023_state* state = fe->demodulator_priv;
407 	u8 ifgain=tda10023_readreg(state, 0x2f);
408 
409 	u16 gain = ((255-tda10023_readreg(state, 0x17))) + (255-ifgain)/16;
410 	// Max raw value is about 0xb0 -> Normalize to >0xf0 after 0x90
411 	if (gain>0x90)
412 		gain=gain+2*(gain-0x90);
413 	if (gain>255)
414 		gain=255;
415 
416 	*strength = (gain<<8)|gain;
417 	return 0;
418 }
419 
420 static int tda10023_read_snr(struct dvb_frontend* fe, u16* snr)
421 {
422 	struct tda10023_state* state = fe->demodulator_priv;
423 
424 	u8 quality = ~tda10023_readreg(state, 0x18);
425 	*snr = (quality << 8) | quality;
426 	return 0;
427 }
428 
429 static int tda10023_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
430 {
431 	struct tda10023_state* state = fe->demodulator_priv;
432 	u8 a,b,c,d;
433 	a= tda10023_readreg (state, 0x74);
434 	b= tda10023_readreg (state, 0x75);
435 	c= tda10023_readreg (state, 0x76);
436 	d= tda10023_readreg (state, 0x77);
437 	*ucblocks = a | (b<<8)|(c<<16)|(d<<24);
438 
439 	tda10023_writebit (state, 0x10, 0x20,0x00);
440 	tda10023_writebit (state, 0x10, 0x20,0x20);
441 	tda10023_writebit (state, 0x13, 0x01, 0x00);
442 
443 	return 0;
444 }
445 
446 static int tda10023_get_frontend(struct dvb_frontend *fe,
447 				 struct dtv_frontend_properties *p)
448 {
449 	struct tda10023_state* state = fe->demodulator_priv;
450 	int sync,inv;
451 	s8 afc = 0;
452 
453 	sync = tda10023_readreg(state, 0x11);
454 	afc = tda10023_readreg(state, 0x19);
455 	inv = tda10023_readreg(state, 0x04);
456 
457 	if (verbose) {
458 		/* AFC only valid when carrier has been recovered */
459 		printk(sync & 2 ? "DVB: TDA10023(%d): AFC (%d) %dHz\n" :
460 				  "DVB: TDA10023(%d): [AFC (%d) %dHz]\n",
461 			state->frontend.dvb->num, afc,
462 		       -((s32)p->symbol_rate * afc) >> 10);
463 	}
464 
465 	p->inversion = (inv&0x20?0:1);
466 	p->modulation = ((state->reg0 >> 2) & 7) + QAM_16;
467 
468 	p->fec_inner = FEC_NONE;
469 	p->frequency = ((p->frequency + 31250) / 62500) * 62500;
470 
471 	if (sync & 2)
472 		p->frequency -= ((s32)p->symbol_rate * afc) >> 10;
473 
474 	return 0;
475 }
476 
477 static int tda10023_sleep(struct dvb_frontend* fe)
478 {
479 	struct tda10023_state* state = fe->demodulator_priv;
480 
481 	tda10023_writereg (state, 0x1b, 0x02);  /* pdown ADC */
482 	tda10023_writereg (state, 0x00, 0x80);  /* standby */
483 
484 	return 0;
485 }
486 
487 static int tda10023_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
488 {
489 	struct tda10023_state* state = fe->demodulator_priv;
490 
491 	if (enable) {
492 		lock_tuner(state);
493 	} else {
494 		unlock_tuner(state);
495 	}
496 	return 0;
497 }
498 
499 static void tda10023_release(struct dvb_frontend* fe)
500 {
501 	struct tda10023_state* state = fe->demodulator_priv;
502 	kfree(state);
503 }
504 
505 static const struct dvb_frontend_ops tda10023_ops;
506 
507 struct dvb_frontend *tda10023_attach(const struct tda10023_config *config,
508 				     struct i2c_adapter *i2c,
509 				     u8 pwm)
510 {
511 	struct tda10023_state* state = NULL;
512 
513 	/* allocate memory for the internal state */
514 	state = kzalloc(sizeof(struct tda10023_state), GFP_KERNEL);
515 	if (state == NULL) goto error;
516 
517 	/* setup the state */
518 	state->config = config;
519 	state->i2c = i2c;
520 
521 	/* wakeup if in standby */
522 	tda10023_writereg (state, 0x00, 0x33);
523 	/* check if the demod is there */
524 	if ((tda10023_readreg(state, 0x1a) & 0xf0) != 0x70) goto error;
525 
526 	/* create dvb_frontend */
527 	memcpy(&state->frontend.ops, &tda10023_ops, sizeof(struct dvb_frontend_ops));
528 	state->pwm = pwm;
529 	state->reg0 = REG0_INIT_VAL;
530 	if (state->config->xtal) {
531 		state->xtal  = state->config->xtal;
532 		state->pll_m = state->config->pll_m;
533 		state->pll_p = state->config->pll_p;
534 		state->pll_n = state->config->pll_n;
535 	} else {
536 		/* set default values if not defined in config */
537 		state->xtal  = 28920000;
538 		state->pll_m = 8;
539 		state->pll_p = 4;
540 		state->pll_n = 1;
541 	}
542 
543 	/* calc sysclk */
544 	state->sysclk = (state->xtal * state->pll_m / \
545 			(state->pll_n * state->pll_p));
546 
547 	state->frontend.ops.info.symbol_rate_min = (state->sysclk/2)/64;
548 	state->frontend.ops.info.symbol_rate_max = (state->sysclk/2)/4;
549 
550 	dprintk("DVB: TDA10023 %s: xtal:%d pll_m:%d pll_p:%d pll_n:%d\n",
551 		__func__, state->xtal, state->pll_m, state->pll_p,
552 		state->pll_n);
553 
554 	state->frontend.demodulator_priv = state;
555 	return &state->frontend;
556 
557 error:
558 	kfree(state);
559 	return NULL;
560 }
561 
562 static const struct dvb_frontend_ops tda10023_ops = {
563 	.delsys = { SYS_DVBC_ANNEX_A, SYS_DVBC_ANNEX_C },
564 	.info = {
565 		.name = "Philips TDA10023 DVB-C",
566 		.frequency_min_hz =  47 * MHz,
567 		.frequency_max_hz = 862 * MHz,
568 		.frequency_stepsize_hz = 62500,
569 		.symbol_rate_min = 0,  /* set in tda10023_attach */
570 		.symbol_rate_max = 0,  /* set in tda10023_attach */
571 		.caps = 0x400 | //FE_CAN_QAM_4
572 			FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 |
573 			FE_CAN_QAM_128 | FE_CAN_QAM_256 |
574 			FE_CAN_FEC_AUTO
575 	},
576 
577 	.release = tda10023_release,
578 
579 	.init = tda10023_init,
580 	.sleep = tda10023_sleep,
581 	.i2c_gate_ctrl = tda10023_i2c_gate_ctrl,
582 
583 	.set_frontend = tda10023_set_parameters,
584 	.get_frontend = tda10023_get_frontend,
585 	.read_status = tda10023_read_status,
586 	.read_ber = tda10023_read_ber,
587 	.read_signal_strength = tda10023_read_signal_strength,
588 	.read_snr = tda10023_read_snr,
589 	.read_ucblocks = tda10023_read_ucblocks,
590 };
591 
592 
593 MODULE_DESCRIPTION("Philips TDA10023 DVB-C demodulator driver");
594 MODULE_AUTHOR("Georg Acher, Hartmut Birr");
595 MODULE_LICENSE("GPL");
596 
597 EXPORT_SYMBOL(tda10023_attach);
598