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1 /*
2 	NxtWave Communications - NXT6000 demodulator driver
3 
4     Copyright (C) 2002-2003 Florian Schirmer <jolt@tuxbox.org>
5     Copyright (C) 2003 Paul Andreassen <paul@andreassen.com.au>
6 
7     This program is free software; you can redistribute it and/or modify
8     it under the terms of the GNU General Public License as published by
9     the Free Software Foundation; either version 2 of the License, or
10     (at your option) any later version.
11 
12     This program is distributed in the hope that it will be useful,
13     but WITHOUT ANY WARRANTY; without even the implied warranty of
14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15     GNU General Public License for more details.
16 
17     You should have received a copy of the GNU General Public License
18     along with this program; if not, write to the Free Software
19     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21 
22 #include <linux/init.h>
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/string.h>
26 #include <linux/slab.h>
27 
28 #include "dvb_frontend.h"
29 #include "nxt6000_priv.h"
30 #include "nxt6000.h"
31 
32 
33 
34 struct nxt6000_state {
35 	struct i2c_adapter* i2c;
36 	/* configuration settings */
37 	const struct nxt6000_config* config;
38 	struct dvb_frontend frontend;
39 };
40 
41 static int debug;
42 #define dprintk if (debug) printk
43 
nxt6000_writereg(struct nxt6000_state * state,u8 reg,u8 data)44 static int nxt6000_writereg(struct nxt6000_state* state, u8 reg, u8 data)
45 {
46 	u8 buf[] = { reg, data };
47 	struct i2c_msg msg = {.addr = state->config->demod_address,.flags = 0,.buf = buf,.len = 2 };
48 	int ret;
49 
50 	if ((ret = i2c_transfer(state->i2c, &msg, 1)) != 1)
51 		dprintk("nxt6000: nxt6000_write error (reg: 0x%02X, data: 0x%02X, ret: %d)\n", reg, data, ret);
52 
53 	return (ret != 1) ? -EFAULT : 0;
54 }
55 
nxt6000_readreg(struct nxt6000_state * state,u8 reg)56 static u8 nxt6000_readreg(struct nxt6000_state* state, u8 reg)
57 {
58 	int ret;
59 	u8 b0[] = { reg };
60 	u8 b1[] = { 0 };
61 	struct i2c_msg msgs[] = {
62 		{.addr = state->config->demod_address,.flags = 0,.buf = b0,.len = 1},
63 		{.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = b1,.len = 1}
64 	};
65 
66 	ret = i2c_transfer(state->i2c, msgs, 2);
67 
68 	if (ret != 2)
69 		dprintk("nxt6000: nxt6000_read error (reg: 0x%02X, ret: %d)\n", reg, ret);
70 
71 	return b1[0];
72 }
73 
nxt6000_reset(struct nxt6000_state * state)74 static void nxt6000_reset(struct nxt6000_state* state)
75 {
76 	u8 val;
77 
78 	val = nxt6000_readreg(state, OFDM_COR_CTL);
79 
80 	nxt6000_writereg(state, OFDM_COR_CTL, val & ~COREACT);
81 	nxt6000_writereg(state, OFDM_COR_CTL, val | COREACT);
82 }
83 
nxt6000_set_bandwidth(struct nxt6000_state * state,fe_bandwidth_t bandwidth)84 static int nxt6000_set_bandwidth(struct nxt6000_state* state, fe_bandwidth_t bandwidth)
85 {
86 	u16 nominal_rate;
87 	int result;
88 
89 	switch (bandwidth) {
90 
91 	case BANDWIDTH_6_MHZ:
92 		nominal_rate = 0x55B7;
93 		break;
94 
95 	case BANDWIDTH_7_MHZ:
96 		nominal_rate = 0x6400;
97 		break;
98 
99 	case BANDWIDTH_8_MHZ:
100 		nominal_rate = 0x7249;
101 		break;
102 
103 	default:
104 		return -EINVAL;
105 	}
106 
107 	if ((result = nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_1, nominal_rate & 0xFF)) < 0)
108 		return result;
109 
110 	return nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_2, (nominal_rate >> 8) & 0xFF);
111 }
112 
nxt6000_set_guard_interval(struct nxt6000_state * state,fe_guard_interval_t guard_interval)113 static int nxt6000_set_guard_interval(struct nxt6000_state* state, fe_guard_interval_t guard_interval)
114 {
115 	switch (guard_interval) {
116 
117 	case GUARD_INTERVAL_1_32:
118 		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x00 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
119 
120 	case GUARD_INTERVAL_1_16:
121 		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x01 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
122 
123 	case GUARD_INTERVAL_AUTO:
124 	case GUARD_INTERVAL_1_8:
125 		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x02 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
126 
127 	case GUARD_INTERVAL_1_4:
128 		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x03 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
129 
130 	default:
131 		return -EINVAL;
132 	}
133 }
134 
nxt6000_set_inversion(struct nxt6000_state * state,fe_spectral_inversion_t inversion)135 static int nxt6000_set_inversion(struct nxt6000_state* state, fe_spectral_inversion_t inversion)
136 {
137 	switch (inversion) {
138 
139 	case INVERSION_OFF:
140 		return nxt6000_writereg(state, OFDM_ITB_CTL, 0x00);
141 
142 	case INVERSION_ON:
143 		return nxt6000_writereg(state, OFDM_ITB_CTL, ITBINV);
144 
145 	default:
146 		return -EINVAL;
147 
148 	}
149 }
150 
nxt6000_set_transmission_mode(struct nxt6000_state * state,fe_transmit_mode_t transmission_mode)151 static int nxt6000_set_transmission_mode(struct nxt6000_state* state, fe_transmit_mode_t transmission_mode)
152 {
153 	int result;
154 
155 	switch (transmission_mode) {
156 
157 	case TRANSMISSION_MODE_2K:
158 		if ((result = nxt6000_writereg(state, EN_DMD_RACQ, 0x00 | (nxt6000_readreg(state, EN_DMD_RACQ) & ~0x03))) < 0)
159 			return result;
160 
161 		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, (0x00 << 2) | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x04));
162 
163 	case TRANSMISSION_MODE_8K:
164 	case TRANSMISSION_MODE_AUTO:
165 		if ((result = nxt6000_writereg(state, EN_DMD_RACQ, 0x02 | (nxt6000_readreg(state, EN_DMD_RACQ) & ~0x03))) < 0)
166 			return result;
167 
168 		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, (0x01 << 2) | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x04));
169 
170 	default:
171 		return -EINVAL;
172 
173 	}
174 }
175 
nxt6000_setup(struct dvb_frontend * fe)176 static void nxt6000_setup(struct dvb_frontend* fe)
177 {
178 	struct nxt6000_state* state = fe->demodulator_priv;
179 
180 	nxt6000_writereg(state, RS_COR_SYNC_PARAM, SYNC_PARAM);
181 	nxt6000_writereg(state, BER_CTRL, /*(1 << 2) | */ (0x01 << 1) | 0x01);
182 	nxt6000_writereg(state, VIT_BERTIME_2, 0x00);  // BER Timer = 0x000200 * 256 = 131072 bits
183 	nxt6000_writereg(state, VIT_BERTIME_1, 0x02);  //
184 	nxt6000_writereg(state, VIT_BERTIME_0, 0x00);  //
185 	nxt6000_writereg(state, VIT_COR_INTEN, 0x98); // Enable BER interrupts
186 	nxt6000_writereg(state, VIT_COR_CTL, 0x82);   // Enable BER measurement
187 	nxt6000_writereg(state, VIT_COR_CTL, VIT_COR_RESYNC | 0x02 );
188 	nxt6000_writereg(state, OFDM_COR_CTL, (0x01 << 5) | (nxt6000_readreg(state, OFDM_COR_CTL) & 0x0F));
189 	nxt6000_writereg(state, OFDM_COR_MODEGUARD, FORCEMODE8K | 0x02);
190 	nxt6000_writereg(state, OFDM_AGC_CTL, AGCLAST | INITIAL_AGC_BW);
191 	nxt6000_writereg(state, OFDM_ITB_FREQ_1, 0x06);
192 	nxt6000_writereg(state, OFDM_ITB_FREQ_2, 0x31);
193 	nxt6000_writereg(state, OFDM_CAS_CTL, (0x01 << 7) | (0x02 << 3) | 0x04);
194 	nxt6000_writereg(state, CAS_FREQ, 0xBB);	/* CHECKME */
195 	nxt6000_writereg(state, OFDM_SYR_CTL, 1 << 2);
196 	nxt6000_writereg(state, OFDM_PPM_CTL_1, PPM256);
197 	nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_1, 0x49);
198 	nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_2, 0x72);
199 	nxt6000_writereg(state, ANALOG_CONTROL_0, 1 << 5);
200 	nxt6000_writereg(state, EN_DMD_RACQ, (1 << 7) | (3 << 4) | 2);
201 	nxt6000_writereg(state, DIAG_CONFIG, TB_SET);
202 
203 	if (state->config->clock_inversion)
204 		nxt6000_writereg(state, SUB_DIAG_MODE_SEL, CLKINVERSION);
205 	else
206 		nxt6000_writereg(state, SUB_DIAG_MODE_SEL, 0);
207 
208 	nxt6000_writereg(state, TS_FORMAT, 0);
209 }
210 
nxt6000_dump_status(struct nxt6000_state * state)211 static void nxt6000_dump_status(struct nxt6000_state *state)
212 {
213 	u8 val;
214 
215 /*
216 	printk("RS_COR_STAT: 0x%02X\n", nxt6000_readreg(fe, RS_COR_STAT));
217 	printk("VIT_SYNC_STATUS: 0x%02X\n", nxt6000_readreg(fe, VIT_SYNC_STATUS));
218 	printk("OFDM_COR_STAT: 0x%02X\n", nxt6000_readreg(fe, OFDM_COR_STAT));
219 	printk("OFDM_SYR_STAT: 0x%02X\n", nxt6000_readreg(fe, OFDM_SYR_STAT));
220 	printk("OFDM_TPS_RCVD_1: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RCVD_1));
221 	printk("OFDM_TPS_RCVD_2: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RCVD_2));
222 	printk("OFDM_TPS_RCVD_3: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RCVD_3));
223 	printk("OFDM_TPS_RCVD_4: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RCVD_4));
224 	printk("OFDM_TPS_RESERVED_1: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RESERVED_1));
225 	printk("OFDM_TPS_RESERVED_2: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RESERVED_2));
226 */
227 	printk("NXT6000 status:");
228 
229 	val = nxt6000_readreg(state, RS_COR_STAT);
230 
231 	printk(" DATA DESCR LOCK: %d,", val & 0x01);
232 	printk(" DATA SYNC LOCK: %d,", (val >> 1) & 0x01);
233 
234 	val = nxt6000_readreg(state, VIT_SYNC_STATUS);
235 
236 	printk(" VITERBI LOCK: %d,", (val >> 7) & 0x01);
237 
238 	switch ((val >> 4) & 0x07) {
239 
240 	case 0x00:
241 		printk(" VITERBI CODERATE: 1/2,");
242 		break;
243 
244 	case 0x01:
245 		printk(" VITERBI CODERATE: 2/3,");
246 		break;
247 
248 	case 0x02:
249 		printk(" VITERBI CODERATE: 3/4,");
250 		break;
251 
252 	case 0x03:
253 		printk(" VITERBI CODERATE: 5/6,");
254 		break;
255 
256 	case 0x04:
257 		printk(" VITERBI CODERATE: 7/8,");
258 		break;
259 
260 	default:
261 		printk(" VITERBI CODERATE: Reserved,");
262 
263 	}
264 
265 	val = nxt6000_readreg(state, OFDM_COR_STAT);
266 
267 	printk(" CHCTrack: %d,", (val >> 7) & 0x01);
268 	printk(" TPSLock: %d,", (val >> 6) & 0x01);
269 	printk(" SYRLock: %d,", (val >> 5) & 0x01);
270 	printk(" AGCLock: %d,", (val >> 4) & 0x01);
271 
272 	switch (val & 0x0F) {
273 
274 	case 0x00:
275 		printk(" CoreState: IDLE,");
276 		break;
277 
278 	case 0x02:
279 		printk(" CoreState: WAIT_AGC,");
280 		break;
281 
282 	case 0x03:
283 		printk(" CoreState: WAIT_SYR,");
284 		break;
285 
286 	case 0x04:
287 		printk(" CoreState: WAIT_PPM,");
288 		break;
289 
290 	case 0x01:
291 		printk(" CoreState: WAIT_TRL,");
292 		break;
293 
294 	case 0x05:
295 		printk(" CoreState: WAIT_TPS,");
296 		break;
297 
298 	case 0x06:
299 		printk(" CoreState: MONITOR_TPS,");
300 		break;
301 
302 	default:
303 		printk(" CoreState: Reserved,");
304 
305 	}
306 
307 	val = nxt6000_readreg(state, OFDM_SYR_STAT);
308 
309 	printk(" SYRLock: %d,", (val >> 4) & 0x01);
310 	printk(" SYRMode: %s,", (val >> 2) & 0x01 ? "8K" : "2K");
311 
312 	switch ((val >> 4) & 0x03) {
313 
314 	case 0x00:
315 		printk(" SYRGuard: 1/32,");
316 		break;
317 
318 	case 0x01:
319 		printk(" SYRGuard: 1/16,");
320 		break;
321 
322 	case 0x02:
323 		printk(" SYRGuard: 1/8,");
324 		break;
325 
326 	case 0x03:
327 		printk(" SYRGuard: 1/4,");
328 		break;
329 	}
330 
331 	val = nxt6000_readreg(state, OFDM_TPS_RCVD_3);
332 
333 	switch ((val >> 4) & 0x07) {
334 
335 	case 0x00:
336 		printk(" TPSLP: 1/2,");
337 		break;
338 
339 	case 0x01:
340 		printk(" TPSLP: 2/3,");
341 		break;
342 
343 	case 0x02:
344 		printk(" TPSLP: 3/4,");
345 		break;
346 
347 	case 0x03:
348 		printk(" TPSLP: 5/6,");
349 		break;
350 
351 	case 0x04:
352 		printk(" TPSLP: 7/8,");
353 		break;
354 
355 	default:
356 		printk(" TPSLP: Reserved,");
357 
358 	}
359 
360 	switch (val & 0x07) {
361 
362 	case 0x00:
363 		printk(" TPSHP: 1/2,");
364 		break;
365 
366 	case 0x01:
367 		printk(" TPSHP: 2/3,");
368 		break;
369 
370 	case 0x02:
371 		printk(" TPSHP: 3/4,");
372 		break;
373 
374 	case 0x03:
375 		printk(" TPSHP: 5/6,");
376 		break;
377 
378 	case 0x04:
379 		printk(" TPSHP: 7/8,");
380 		break;
381 
382 	default:
383 		printk(" TPSHP: Reserved,");
384 
385 	}
386 
387 	val = nxt6000_readreg(state, OFDM_TPS_RCVD_4);
388 
389 	printk(" TPSMode: %s,", val & 0x01 ? "8K" : "2K");
390 
391 	switch ((val >> 4) & 0x03) {
392 
393 	case 0x00:
394 		printk(" TPSGuard: 1/32,");
395 		break;
396 
397 	case 0x01:
398 		printk(" TPSGuard: 1/16,");
399 		break;
400 
401 	case 0x02:
402 		printk(" TPSGuard: 1/8,");
403 		break;
404 
405 	case 0x03:
406 		printk(" TPSGuard: 1/4,");
407 		break;
408 
409 	}
410 
411 	/* Strange magic required to gain access to RF_AGC_STATUS */
412 	nxt6000_readreg(state, RF_AGC_VAL_1);
413 	val = nxt6000_readreg(state, RF_AGC_STATUS);
414 	val = nxt6000_readreg(state, RF_AGC_STATUS);
415 
416 	printk(" RF AGC LOCK: %d,", (val >> 4) & 0x01);
417 	printk("\n");
418 }
419 
nxt6000_read_status(struct dvb_frontend * fe,fe_status_t * status)420 static int nxt6000_read_status(struct dvb_frontend* fe, fe_status_t* status)
421 {
422 	u8 core_status;
423 	struct nxt6000_state* state = fe->demodulator_priv;
424 
425 	*status = 0;
426 
427 	core_status = nxt6000_readreg(state, OFDM_COR_STAT);
428 
429 	if (core_status & AGCLOCKED)
430 		*status |= FE_HAS_SIGNAL;
431 
432 	if (nxt6000_readreg(state, OFDM_SYR_STAT) & GI14_SYR_LOCK)
433 		*status |= FE_HAS_CARRIER;
434 
435 	if (nxt6000_readreg(state, VIT_SYNC_STATUS) & VITINSYNC)
436 		*status |= FE_HAS_VITERBI;
437 
438 	if (nxt6000_readreg(state, RS_COR_STAT) & RSCORESTATUS)
439 		*status |= FE_HAS_SYNC;
440 
441 	if ((core_status & TPSLOCKED) && (*status == (FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)))
442 		*status |= FE_HAS_LOCK;
443 
444 	if (debug)
445 		nxt6000_dump_status(state);
446 
447 	return 0;
448 }
449 
nxt6000_init(struct dvb_frontend * fe)450 static int nxt6000_init(struct dvb_frontend* fe)
451 {
452 	struct nxt6000_state* state = fe->demodulator_priv;
453 
454 	nxt6000_reset(state);
455 	nxt6000_setup(fe);
456 
457 	return 0;
458 }
459 
nxt6000_set_frontend(struct dvb_frontend * fe,struct dvb_frontend_parameters * param)460 static int nxt6000_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *param)
461 {
462 	struct nxt6000_state* state = fe->demodulator_priv;
463 	int result;
464 
465 	if (fe->ops.tuner_ops.set_params) {
466 		fe->ops.tuner_ops.set_params(fe, param);
467 		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
468 	}
469 
470 	if ((result = nxt6000_set_bandwidth(state, param->u.ofdm.bandwidth)) < 0)
471 		return result;
472 	if ((result = nxt6000_set_guard_interval(state, param->u.ofdm.guard_interval)) < 0)
473 		return result;
474 	if ((result = nxt6000_set_transmission_mode(state, param->u.ofdm.transmission_mode)) < 0)
475 		return result;
476 	if ((result = nxt6000_set_inversion(state, param->inversion)) < 0)
477 		return result;
478 
479 	msleep(500);
480 	return 0;
481 }
482 
nxt6000_release(struct dvb_frontend * fe)483 static void nxt6000_release(struct dvb_frontend* fe)
484 {
485 	struct nxt6000_state* state = fe->demodulator_priv;
486 	kfree(state);
487 }
488 
nxt6000_read_snr(struct dvb_frontend * fe,u16 * snr)489 static int nxt6000_read_snr(struct dvb_frontend* fe, u16* snr)
490 {
491 	struct nxt6000_state* state = fe->demodulator_priv;
492 
493 	*snr = nxt6000_readreg( state, OFDM_CHC_SNR) / 8;
494 
495 	return 0;
496 }
497 
nxt6000_read_ber(struct dvb_frontend * fe,u32 * ber)498 static int nxt6000_read_ber(struct dvb_frontend* fe, u32* ber)
499 {
500 	struct nxt6000_state* state = fe->demodulator_priv;
501 
502 	nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18 );
503 
504 	*ber = (nxt6000_readreg( state, VIT_BER_1 ) << 8 ) |
505 		nxt6000_readreg( state, VIT_BER_0 );
506 
507 	nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18); // Clear BER Done interrupts
508 
509 	return 0;
510 }
511 
nxt6000_read_signal_strength(struct dvb_frontend * fe,u16 * signal_strength)512 static int nxt6000_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
513 {
514 	struct nxt6000_state* state = fe->demodulator_priv;
515 
516 	*signal_strength = (short) (511 -
517 		(nxt6000_readreg(state, AGC_GAIN_1) +
518 		((nxt6000_readreg(state, AGC_GAIN_2) & 0x03) << 8)));
519 
520 	return 0;
521 }
522 
nxt6000_fe_get_tune_settings(struct dvb_frontend * fe,struct dvb_frontend_tune_settings * tune)523 static int nxt6000_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
524 {
525 	tune->min_delay_ms = 500;
526 	return 0;
527 }
528 
nxt6000_i2c_gate_ctrl(struct dvb_frontend * fe,int enable)529 static int nxt6000_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
530 {
531 	struct nxt6000_state* state = fe->demodulator_priv;
532 
533 	if (enable) {
534 		return nxt6000_writereg(state, ENABLE_TUNER_IIC, 0x01);
535 	} else {
536 		return nxt6000_writereg(state, ENABLE_TUNER_IIC, 0x00);
537 	}
538 }
539 
540 static struct dvb_frontend_ops nxt6000_ops;
541 
nxt6000_attach(const struct nxt6000_config * config,struct i2c_adapter * i2c)542 struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
543 				    struct i2c_adapter* i2c)
544 {
545 	struct nxt6000_state* state = NULL;
546 
547 	/* allocate memory for the internal state */
548 	state = kmalloc(sizeof(struct nxt6000_state), GFP_KERNEL);
549 	if (state == NULL) goto error;
550 
551 	/* setup the state */
552 	state->config = config;
553 	state->i2c = i2c;
554 
555 	/* check if the demod is there */
556 	if (nxt6000_readreg(state, OFDM_MSC_REV) != NXT6000ASICDEVICE) goto error;
557 
558 	/* create dvb_frontend */
559 	memcpy(&state->frontend.ops, &nxt6000_ops, sizeof(struct dvb_frontend_ops));
560 	state->frontend.demodulator_priv = state;
561 	return &state->frontend;
562 
563 error:
564 	kfree(state);
565 	return NULL;
566 }
567 
568 static struct dvb_frontend_ops nxt6000_ops = {
569 
570 	.info = {
571 		.name = "NxtWave NXT6000 DVB-T",
572 		.type = FE_OFDM,
573 		.frequency_min = 0,
574 		.frequency_max = 863250000,
575 		.frequency_stepsize = 62500,
576 		/*.frequency_tolerance = *//* FIXME: 12% of SR */
577 		.symbol_rate_min = 0,	/* FIXME */
578 		.symbol_rate_max = 9360000,	/* FIXME */
579 		.symbol_rate_tolerance = 4000,
580 		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
581 			FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
582 			FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
583 			FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
584 			FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
585 			FE_CAN_HIERARCHY_AUTO,
586 	},
587 
588 	.release = nxt6000_release,
589 
590 	.init = nxt6000_init,
591 	.i2c_gate_ctrl = nxt6000_i2c_gate_ctrl,
592 
593 	.get_tune_settings = nxt6000_fe_get_tune_settings,
594 
595 	.set_frontend = nxt6000_set_frontend,
596 
597 	.read_status = nxt6000_read_status,
598 	.read_ber = nxt6000_read_ber,
599 	.read_signal_strength = nxt6000_read_signal_strength,
600 	.read_snr = nxt6000_read_snr,
601 };
602 
603 module_param(debug, int, 0644);
604 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
605 
606 MODULE_DESCRIPTION("NxtWave NXT6000 DVB-T demodulator driver");
607 MODULE_AUTHOR("Florian Schirmer");
608 MODULE_LICENSE("GPL");
609 
610 EXPORT_SYMBOL(nxt6000_attach);
611