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Merge 3.7-rc1 into tty-linus
[mirror_ubuntu-artful-kernel.git] / drivers / media / dvb-frontends / stv0900_sw.c
CommitLineData
ce45264e
IL		 1/*
2 * stv0900_sw.c
3 *
4 * Driver for ST STV0900 satellite demodulator IC.
5 *
6 * Copyright (C) ST Microelectronics.
7 * Copyright (C) 2009 NetUP Inc.
8 * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 *
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26#include "stv0900.h"
27#include "stv0900_reg.h"
28#include "stv0900_priv.h"
29
a3a4f7e1
IL		 30s32 shiftx(s32 x, int demod, s32 shift)
31{
32 if (demod == 1)
33 return x - shift;
34
35 return x;
36}
37
38int stv0900_check_signal_presence(struct stv0900_internal *intp,
ce45264e
IL		 39 enum fe_stv0900_demod_num demod)
40{
a3a4f7e1
IL		 41 s32 carr_offset,
42 agc2_integr,
43 max_carrier;
ce45264e 44
a3a4f7e1 45 int no_signal = FALSE;
ce45264e 46
a3a4f7e1
IL		 47 carr_offset = (stv0900_read_reg(intp, CFR2) << 8)
48 | stv0900_read_reg(intp, CFR1);
49 carr_offset = ge2comp(carr_offset, 16);
50 agc2_integr = (stv0900_read_reg(intp, AGC2I1) << 8)
51 | stv0900_read_reg(intp, AGC2I0);
52 max_carrier = intp->srch_range[demod] / 1000;
ce45264e
IL		 53
54 max_carrier += (max_carrier / 10);
55 max_carrier = 65536 * (max_carrier / 2);
a3a4f7e1 56 max_carrier /= intp->mclk / 1000;
ce45264e
IL		 57 if (max_carrier > 0x4000)
58 max_carrier = 0x4000;
59
60 if ((agc2_integr > 0x2000)
a3a4f7e1
IL		 61 || (carr_offset > (2 * max_carrier))
62 || (carr_offset < (-2 * max_carrier)))
ce45264e 63 no_signal = TRUE;
ce45264e
IL		 64
65 return no_signal;
66}
67
a3a4f7e1 68static void stv0900_get_sw_loop_params(struct stv0900_internal *intp,
ce45264e
IL		 69 s32 *frequency_inc, s32 *sw_timeout,
70 s32 *steps,
71 enum fe_stv0900_demod_num demod)
72{
73 s32 timeout, freq_inc, max_steps, srate, max_carrier;
74
75 enum fe_stv0900_search_standard standard;
76
a3a4f7e1
IL		 77 srate = intp->symbol_rate[demod];
78 max_carrier = intp->srch_range[demod] / 1000;
79 max_carrier += max_carrier / 10;
80 standard = intp->srch_standard[demod];
ce45264e
IL		 81
82 max_carrier = 65536 * (max_carrier / 2);
a3a4f7e1 83 max_carrier /= intp->mclk / 1000;
ce45264e
IL		 84
85 if (max_carrier > 0x4000)
86 max_carrier = 0x4000;
87
88 freq_inc = srate;
a3a4f7e1 89 freq_inc /= intp->mclk >> 10;
ce45264e
IL		 90 freq_inc = freq_inc << 6;
91
92 switch (standard) {
93 case STV0900_SEARCH_DVBS1:
94 case STV0900_SEARCH_DSS:
95 freq_inc *= 3;
96 timeout = 20;
97 break;
98 case STV0900_SEARCH_DVBS2:
99 freq_inc *= 4;
100 timeout = 25;
101 break;
102 case STV0900_AUTO_SEARCH:
103 default:
104 freq_inc *= 3;
105 timeout = 25;
106 break;
107 }
108
109 freq_inc /= 100;
110
111 if ((freq_inc > max_carrier) || (freq_inc < 0))
112 freq_inc = max_carrier / 2;
113
114 timeout *= 27500;
115
116 if (srate > 0)
117 timeout /= srate / 1000;
118
119 if ((timeout > 100) || (timeout < 0))
120 timeout = 100;
121
122 max_steps = (max_carrier / freq_inc) + 1;
123
124 if ((max_steps > 100) || (max_steps < 0)) {
125 max_steps = 100;
126 freq_inc = max_carrier / max_steps;
127 }
128
129 *frequency_inc = freq_inc;
130 *sw_timeout = timeout;
131 *steps = max_steps;
132
133}
134
a3a4f7e1 135static int stv0900_search_carr_sw_loop(struct stv0900_internal *intp,
ce45264e
IL		 136 s32 FreqIncr, s32 Timeout, int zigzag,
137 s32 MaxStep, enum fe_stv0900_demod_num demod)
138{
139 int no_signal,
140 lock = FALSE;
141 s32 stepCpt,
142 freqOffset,
143 max_carrier;
144
a3a4f7e1
IL		 145 max_carrier = intp->srch_range[demod] / 1000;
146 max_carrier += (max_carrier / 10);
ce45264e
IL		 147
148 max_carrier = 65536 * (max_carrier / 2);
a3a4f7e1 149 max_carrier /= intp->mclk / 1000;
ce45264e
IL		 150
151 if (max_carrier > 0x4000)
152 max_carrier = 0x4000;
153
154 if (zigzag == TRUE)
155 freqOffset = 0;
156 else
157 freqOffset = -max_carrier + FreqIncr;
158
159 stepCpt = 0;
160
161 do {
a3a4f7e1
IL		 162 stv0900_write_reg(intp, DMDISTATE, 0x1c);
163 stv0900_write_reg(intp, CFRINIT1, (freqOffset / 256) & 0xff);
164 stv0900_write_reg(intp, CFRINIT0, freqOffset & 0xff);
165 stv0900_write_reg(intp, DMDISTATE, 0x18);
166 stv0900_write_bits(intp, ALGOSWRST, 1);
167
168 if (intp->chip_id == 0x12) {
169 stv0900_write_bits(intp, RST_HWARE, 1);
170 stv0900_write_bits(intp, RST_HWARE, 0);
ce45264e
IL		 171 }
172
173 if (zigzag == TRUE) {
174 if (freqOffset >= 0)
175 freqOffset = -freqOffset - 2 * FreqIncr;
176 else
177 freqOffset = -freqOffset;
178 } else
179 freqOffset += + 2 * FreqIncr;
180
181 stepCpt++;
a3a4f7e1
IL		 182 lock = stv0900_get_demod_lock(intp, demod, Timeout);
183 no_signal = stv0900_check_signal_presence(intp, demod);
ce45264e
IL		 184
185 } while ((lock == FALSE)
186 && (no_signal == FALSE)
187 && ((freqOffset - FreqIncr) < max_carrier)
188 && ((freqOffset + FreqIncr) > -max_carrier)
189 && (stepCpt < MaxStep));
190
a3a4f7e1 191 stv0900_write_bits(intp, ALGOSWRST, 0);
ce45264e
IL		 192
193 return lock;
194}
195
521e86eb 196static int stv0900_sw_algo(struct stv0900_internal *intp,
ce45264e
IL		 197 enum fe_stv0900_demod_num demod)
198{
a3a4f7e1
IL		 199 int lock = FALSE,
200 no_signal,
201 zigzag;
202 s32 s2fw,
203 fqc_inc,
204 sft_stp_tout,
205 trial_cntr,
206 max_steps;
207
208 stv0900_get_sw_loop_params(intp, &fqc_inc, &sft_stp_tout,
ce45264e 209 &max_steps, demod);
a3a4f7e1
IL		 210 switch (intp->srch_standard[demod]) {
211 case STV0900_SEARCH_DVBS1:
212 case STV0900_SEARCH_DSS:
213 if (intp->chip_id >= 0x20)
214 stv0900_write_reg(intp, CARFREQ, 0x3b);
215 else
216 stv0900_write_reg(intp, CARFREQ, 0xef);
ce45264e 217
a3a4f7e1
IL		 218 stv0900_write_reg(intp, DMDCFGMD, 0x49);
219 zigzag = FALSE;
220 break;
221 case STV0900_SEARCH_DVBS2:
222 if (intp->chip_id >= 0x20)
223 stv0900_write_reg(intp, CORRELABS, 0x79);
224 else
225 stv0900_write_reg(intp, CORRELABS, 0x68);
ce45264e 226
a3a4f7e1 227 stv0900_write_reg(intp, DMDCFGMD, 0x89);
ce45264e 228
a3a4f7e1
IL		 229 zigzag = TRUE;
230 break;
231 case STV0900_AUTO_SEARCH:
232 default:
233 if (intp->chip_id >= 0x20) {
234 stv0900_write_reg(intp, CARFREQ, 0x3b);
235 stv0900_write_reg(intp, CORRELABS, 0x79);
236 } else {
237 stv0900_write_reg(intp, CARFREQ, 0xef);
238 stv0900_write_reg(intp, CORRELABS, 0x68);
ce45264e
IL		 239 }
240
a3a4f7e1
IL		 241 stv0900_write_reg(intp, DMDCFGMD, 0xc9);
242 zigzag = FALSE;
ce45264e 243 break;
a3a4f7e1 244 }
ce45264e 245
a3a4f7e1
IL		 246 trial_cntr = 0;
247 do {
248 lock = stv0900_search_carr_sw_loop(intp,
249 fqc_inc,
250 sft_stp_tout,
251 zigzag,
252 max_steps,
253 demod);
254 no_signal = stv0900_check_signal_presence(intp, demod);
255 trial_cntr++;
256 if ((lock == TRUE)
257 || (no_signal == TRUE)
258 || (trial_cntr == 2)) {
259
260 if (intp->chip_id >= 0x20) {
261 stv0900_write_reg(intp, CARFREQ, 0x49);
262 stv0900_write_reg(intp, CORRELABS, 0x9e);
ce45264e 263 } else {
a3a4f7e1
IL		 264 stv0900_write_reg(intp, CARFREQ, 0xed);
265 stv0900_write_reg(intp, CORRELABS, 0x88);
ce45264e
IL		 266 }
267
a3a4f7e1
IL		 268 if ((stv0900_get_bits(intp, HEADER_MODE) ==
269 STV0900_DVBS2_FOUND) &&
270 (lock == TRUE)) {
271 msleep(sft_stp_tout);
272 s2fw = stv0900_get_bits(intp, FLYWHEEL_CPT);
ce45264e 273
a3a4f7e1
IL		 274 if (s2fw < 0xd) {
275 msleep(sft_stp_tout);
276 s2fw = stv0900_get_bits(intp,
277 FLYWHEEL_CPT);
ce45264e
IL		 278 }
279
a3a4f7e1
IL		 280 if (s2fw < 0xd) {
281 lock = FALSE;
ce45264e 282
a3a4f7e1
IL		 283 if (trial_cntr < 2) {
284 if (intp->chip_id >= 0x20)
285 stv0900_write_reg(intp,
286 CORRELABS,
287 0x79);
288 else
289 stv0900_write_reg(intp,
290 CORRELABS,
291 0x68);
ce45264e 292
a3a4f7e1
IL		 293 stv0900_write_reg(intp,
294 DMDCFGMD,
295 0x89);
ce45264e
IL		 296 }
297 }
298 }
a3a4f7e1 299 }
ce45264e 300
a3a4f7e1
IL		 301 } while ((lock == FALSE)
302 && (trial_cntr < 2)
303 && (no_signal == FALSE));
ce45264e
IL		 304
305 return lock;
306}
307
a3a4f7e1 308static u32 stv0900_get_symbol_rate(struct stv0900_internal *intp,
ce45264e
IL		 309 u32 mclk,
310 enum fe_stv0900_demod_num demod)
311{
a3a4f7e1
IL		 312 s32 rem1, rem2, intval1, intval2, srate;
313
314 srate = (stv0900_get_bits(intp, SYMB_FREQ3) << 24) +
315 (stv0900_get_bits(intp, SYMB_FREQ2) << 16) +
316 (stv0900_get_bits(intp, SYMB_FREQ1) << 8) +
317 (stv0900_get_bits(intp, SYMB_FREQ0));
ce45264e 318 dprintk("lock: srate=%d r0=0x%x r1=0x%x r2=0x%x r3=0x%x \n",
a3a4f7e1
IL		 319 srate, stv0900_get_bits(intp, SYMB_FREQ0),
320 stv0900_get_bits(intp, SYMB_FREQ1),
321 stv0900_get_bits(intp, SYMB_FREQ2),
322 stv0900_get_bits(intp, SYMB_FREQ3));
ce45264e
IL		 323
324 intval1 = (mclk) >> 16;
325 intval2 = (srate) >> 16;
326
327 rem1 = (mclk) % 0x10000;
328 rem2 = (srate) % 0x10000;
329 srate = (intval1 * intval2) +
330 ((intval1 * rem2) >> 16) +
331 ((intval2 * rem1) >> 16);
332
333 return srate;
334}
335
a3a4f7e1 336static void stv0900_set_symbol_rate(struct stv0900_internal *intp,
ce45264e
IL		 337 u32 mclk, u32 srate,
338 enum fe_stv0900_demod_num demod)
339{
ce45264e
IL		 340 u32 symb;
341
8171c205 342 dprintk("%s: Mclk %d, SR %d, Dmd %d\n", __func__, mclk,
ce45264e
IL		 343 srate, demod);
344
ce45264e
IL		 345 if (srate > 60000000) {
346 symb = srate << 4;
347 symb /= (mclk >> 12);
348 } else if (srate > 6000000) {
349 symb = srate << 6;
350 symb /= (mclk >> 10);
351 } else {
352 symb = srate << 9;
353 symb /= (mclk >> 7);
354 }
355
a3a4f7e1
IL		 356 stv0900_write_reg(intp, SFRINIT1, (symb >> 8) & 0x7f);
357 stv0900_write_reg(intp, SFRINIT1 + 1, (symb & 0xff));
ce45264e
IL		 358}
359
a3a4f7e1 360static void stv0900_set_max_symbol_rate(struct stv0900_internal *intp,
ce45264e
IL		 361 u32 mclk, u32 srate,
362 enum fe_stv0900_demod_num demod)
363{
ce45264e
IL		 364 u32 symb;
365
ce45264e
IL		 366 srate = 105 * (srate / 100);
367
368 if (srate > 60000000) {
369 symb = srate << 4;
370 symb /= (mclk >> 12);
371 } else if (srate > 6000000) {
372 symb = srate << 6;
373 symb /= (mclk >> 10);
374 } else {
375 symb = srate << 9;
376 symb /= (mclk >> 7);
377 }
378
379 if (symb < 0x7fff) {
a3a4f7e1
IL		 380 stv0900_write_reg(intp, SFRUP1, (symb >> 8) & 0x7f);
381 stv0900_write_reg(intp, SFRUP1 + 1, (symb & 0xff));
ce45264e 382 } else {
a3a4f7e1
IL		 383 stv0900_write_reg(intp, SFRUP1, 0x7f);
384 stv0900_write_reg(intp, SFRUP1 + 1, 0xff);
ce45264e
IL		 385 }
386}
387
a3a4f7e1 388static void stv0900_set_min_symbol_rate(struct stv0900_internal *intp,
ce45264e
IL		 389 u32 mclk, u32 srate,
390 enum fe_stv0900_demod_num demod)
391{
ce45264e
IL		 392 u32 symb;
393
ce45264e
IL		 394 srate = 95 * (srate / 100);
395 if (srate > 60000000) {
396 symb = srate << 4;
397 symb /= (mclk >> 12);
398
399 } else if (srate > 6000000) {
400 symb = srate << 6;
401 symb /= (mclk >> 10);
402
403 } else {
404 symb = srate << 9;
405 symb /= (mclk >> 7);
406 }
407
a3a4f7e1
IL		 408 stv0900_write_reg(intp, SFRLOW1, (symb >> 8) & 0xff);
409 stv0900_write_reg(intp, SFRLOW1 + 1, (symb & 0xff));
ce45264e
IL		 410}
411
a3a4f7e1 412static s32 stv0900_get_timing_offst(struct stv0900_internal *intp,
ce45264e
IL		 413 u32 srate,
414 enum fe_stv0900_demod_num demod)
415{
a3a4f7e1 416 s32 timingoffset;
ce45264e 417
ce45264e 418
a3a4f7e1
IL		 419 timingoffset = (stv0900_read_reg(intp, TMGREG2) << 16) +
420 (stv0900_read_reg(intp, TMGREG2 + 1) << 8) +
421 (stv0900_read_reg(intp, TMGREG2 + 2));
ce45264e
IL		 422
423 timingoffset = ge2comp(timingoffset, 24);
424
425
426 if (timingoffset == 0)
427 timingoffset = 1;
428
429 timingoffset = ((s32)srate * 10) / ((s32)0x1000000 / timingoffset);
430 timingoffset /= 320;
431
432 return timingoffset;
433}
434
a3a4f7e1 435static void stv0900_set_dvbs2_rolloff(struct stv0900_internal *intp,
ce45264e
IL		 436 enum fe_stv0900_demod_num demod)
437{
a3a4f7e1
IL		 438 s32 rolloff;
439
440 if (intp->chip_id == 0x10) {
441 stv0900_write_bits(intp, MANUALSX_ROLLOFF, 1);
442 rolloff = stv0900_read_reg(intp, MATSTR1) & 0x03;
443 stv0900_write_bits(intp, ROLLOFF_CONTROL, rolloff);
444 } else if (intp->chip_id <= 0x20)
445 stv0900_write_bits(intp, MANUALSX_ROLLOFF, 0);
446 else /* cut 3.0 */
447 stv0900_write_bits(intp, MANUALS2_ROLLOFF, 0);
ce45264e
IL		 448}
449
450static u32 stv0900_carrier_width(u32 srate, enum fe_stv0900_rolloff ro)
451{
452 u32 rolloff;
453
454 switch (ro) {
455 case STV0900_20:
456 rolloff = 20;
457 break;
458 case STV0900_25:
459 rolloff = 25;
460 break;
461 case STV0900_35:
462 default:
463 rolloff = 35;
464 break;
465 }
466
467 return srate + (srate * rolloff) / 100;
468}
469
a3a4f7e1 470static int stv0900_check_timing_lock(struct stv0900_internal *intp,
ce45264e
IL		 471 enum fe_stv0900_demod_num demod)
472{
473 int timingLock = FALSE;
a3a4f7e1
IL		 474 s32 i,
475 timingcpt = 0;
476 u8 car_freq,
477 tmg_th_high,
478 tmg_th_low;
479
480 car_freq = stv0900_read_reg(intp, CARFREQ);
481 tmg_th_high = stv0900_read_reg(intp, TMGTHRISE);
482 tmg_th_low = stv0900_read_reg(intp, TMGTHFALL);
483 stv0900_write_reg(intp, TMGTHRISE, 0x20);
484 stv0900_write_reg(intp, TMGTHFALL, 0x0);
485 stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
486 stv0900_write_reg(intp, RTC, 0x80);
487 stv0900_write_reg(intp, RTCS2, 0x40);
488 stv0900_write_reg(intp, CARFREQ, 0x0);
489 stv0900_write_reg(intp, CFRINIT1, 0x0);
490 stv0900_write_reg(intp, CFRINIT0, 0x0);
491 stv0900_write_reg(intp, AGC2REF, 0x65);
492 stv0900_write_reg(intp, DMDISTATE, 0x18);
493 msleep(7);
494
495 for (i = 0; i < 10; i++) {
496 if (stv0900_get_bits(intp, TMGLOCK_QUALITY) >= 2)
497 timingcpt++;
498
499 msleep(1);
500 }
ce45264e 501
a3a4f7e1
IL		 502 if (timingcpt >= 3)
503 timingLock = TRUE;
ce45264e 504
a3a4f7e1
IL		 505 stv0900_write_reg(intp, AGC2REF, 0x38);
506 stv0900_write_reg(intp, RTC, 0x88);
507 stv0900_write_reg(intp, RTCS2, 0x68);
508 stv0900_write_reg(intp, CARFREQ, car_freq);
509 stv0900_write_reg(intp, TMGTHRISE, tmg_th_high);
510 stv0900_write_reg(intp, TMGTHFALL, tmg_th_low);
ce45264e
IL		 511
512 return timingLock;
513}
514
515static int stv0900_get_demod_cold_lock(struct dvb_frontend *fe,
516 s32 demod_timeout)
517{
518 struct stv0900_state *state = fe->demodulator_priv;
a3a4f7e1 519 struct stv0900_internal *intp = state->internal;
ce45264e 520 enum fe_stv0900_demod_num demod = state->demod;
a3a4f7e1
IL		 521 int lock = FALSE,
522 d = demod;
523 s32 srate,
524 search_range,
525 locktimeout,
526 currier_step,
527 nb_steps,
528 current_step,
529 direction,
530 tuner_freq,
531 timeout,
532 freq;
ce45264e 533
a3a4f7e1
IL		 534 srate = intp->symbol_rate[d];
535 search_range = intp->srch_range[d];
ce45264e
IL		 536
537 if (srate >= 10000000)
538 locktimeout = demod_timeout / 3;
539 else
540 locktimeout = demod_timeout / 2;
541
a3a4f7e1 542 lock = stv0900_get_demod_lock(intp, d, locktimeout);
ce45264e 543
a3a4f7e1
IL		 544 if (lock != FALSE)
545 return lock;
546
547 if (srate >= 10000000) {
548 if (stv0900_check_timing_lock(intp, d) == TRUE) {
549 stv0900_write_reg(intp, DMDISTATE, 0x1f);
550 stv0900_write_reg(intp, DMDISTATE, 0x15);
551 lock = stv0900_get_demod_lock(intp, d, demod_timeout);
552 } else
553 lock = FALSE;
554
555 return lock;
556 }
557
558 if (intp->chip_id <= 0x20) {
559 if (srate <= 1000000)
560 currier_step = 500;
561 else if (srate <= 4000000)
562 currier_step = 1000;
563 else if (srate <= 7000000)
564 currier_step = 2000;
565 else if (srate <= 10000000)
566 currier_step = 3000;
567 else
568 currier_step = 5000;
569
570 if (srate >= 2000000) {
ce45264e
IL		 571 timeout = (demod_timeout / 3);
572 if (timeout > 1000)
573 timeout = 1000;
a3a4f7e1
IL		 574 } else
575 timeout = (demod_timeout / 2);
576 } else {
577 /*cut 3.0 */
578 currier_step = srate / 4000;
579 timeout = (demod_timeout * 3) / 4;
580 }
ce45264e 581
a3a4f7e1 582 nb_steps = ((search_range / 1000) / currier_step);
ce45264e 583
a3a4f7e1
IL		 584 if ((nb_steps % 2) != 0)
585 nb_steps += 1;
ce45264e 586
a3a4f7e1
IL		 587 if (nb_steps <= 0)
588 nb_steps = 2;
589 else if (nb_steps > 12)
590 nb_steps = 12;
ce45264e 591
a3a4f7e1
IL		 592 current_step = 1;
593 direction = 1;
ce45264e 594
a3a4f7e1
IL		 595 if (intp->chip_id <= 0x20) {
596 tuner_freq = intp->freq[d];
597 intp->bw[d] = stv0900_carrier_width(intp->symbol_rate[d],
598 intp->rolloff) + intp->symbol_rate[d];
599 } else
600 tuner_freq = 0;
601
602 while ((current_step <= nb_steps) && (lock == FALSE)) {
603 if (direction > 0)
604 tuner_freq += (current_step * currier_step);
605 else
606 tuner_freq -= (current_step * currier_step);
607
608 if (intp->chip_id <= 0x20) {
cd79d33e
IL		 609 if (intp->tuner_type[d] == 3)
610 stv0900_set_tuner_auto(intp, tuner_freq,
611 intp->bw[d], demod);
612 else
613 stv0900_set_tuner(fe, tuner_freq, intp->bw[d]);
614
a3a4f7e1
IL		 615 stv0900_write_reg(intp, DMDISTATE, 0x1c);
616 stv0900_write_reg(intp, CFRINIT1, 0);
617 stv0900_write_reg(intp, CFRINIT0, 0);
618 stv0900_write_reg(intp, DMDISTATE, 0x1f);
619 stv0900_write_reg(intp, DMDISTATE, 0x15);
620 } else {
621 stv0900_write_reg(intp, DMDISTATE, 0x1c);
622 freq = (tuner_freq * 65536) / (intp->mclk / 1000);
623 stv0900_write_bits(intp, CFR_INIT1, MSB(freq));
624 stv0900_write_bits(intp, CFR_INIT0, LSB(freq));
625 stv0900_write_reg(intp, DMDISTATE, 0x1f);
626 stv0900_write_reg(intp, DMDISTATE, 0x05);
ce45264e 627 }
a3a4f7e1
IL		 628
629 lock = stv0900_get_demod_lock(intp, d, timeout);
630 direction *= -1;
631 current_step++;
ce45264e
IL		 632 }
633
634 return lock;
635}
636
637static void stv0900_get_lock_timeout(s32 *demod_timeout, s32 *fec_timeout,
638 s32 srate,
639 enum fe_stv0900_search_algo algo)
640{
641 switch (algo) {
642 case STV0900_BLIND_SEARCH:
643 if (srate <= 1500000) {
644 (*demod_timeout) = 1500;
645 (*fec_timeout) = 400;
646 } else if (srate <= 5000000) {
647 (*demod_timeout) = 1000;
648 (*fec_timeout) = 300;
649 } else {
650 (*demod_timeout) = 700;
651 (*fec_timeout) = 100;
652 }
653
654 break;
655 case STV0900_COLD_START:
656 case STV0900_WARM_START:
657 default:
658 if (srate <= 1000000) {
659 (*demod_timeout) = 3000;
660 (*fec_timeout) = 1700;
661 } else if (srate <= 2000000) {
662 (*demod_timeout) = 2500;
663 (*fec_timeout) = 1100;
664 } else if (srate <= 5000000) {
665 (*demod_timeout) = 1000;
666 (*fec_timeout) = 550;
667 } else if (srate <= 10000000) {
668 (*demod_timeout) = 700;
669 (*fec_timeout) = 250;
670 } else if (srate <= 20000000) {
671 (*demod_timeout) = 400;
672 (*fec_timeout) = 130;
a3a4f7e1 673 } else {
ce45264e
IL		 674 (*demod_timeout) = 300;
675 (*fec_timeout) = 100;
676 }
677
678 break;
679
680 }
681
682 if (algo == STV0900_WARM_START)
683 (*demod_timeout) /= 2;
684}
685
a3a4f7e1 686static void stv0900_set_viterbi_tracq(struct stv0900_internal *intp,
ce45264e
IL		 687 enum fe_stv0900_demod_num demod)
688{
689
a3a4f7e1 690 s32 vth_reg = VTH12;
ce45264e 691
8171c205 692 dprintk("%s\n", __func__);
ce45264e 693
a3a4f7e1
IL		 694 stv0900_write_reg(intp, vth_reg++, 0xd0);
695 stv0900_write_reg(intp, vth_reg++, 0x7d);
696 stv0900_write_reg(intp, vth_reg++, 0x53);
697 stv0900_write_reg(intp, vth_reg++, 0x2f);
698 stv0900_write_reg(intp, vth_reg++, 0x24);
699 stv0900_write_reg(intp, vth_reg++, 0x1f);
ce45264e
IL		 700}
701
a3a4f7e1
IL		 702static void stv0900_set_viterbi_standard(struct stv0900_internal *intp,
703 enum fe_stv0900_search_standard standard,
704 enum fe_stv0900_fec fec,
ce45264e
IL		 705 enum fe_stv0900_demod_num demod)
706{
8171c205 707 dprintk("%s: ViterbiStandard = ", __func__);
ce45264e 708
a3a4f7e1 709 switch (standard) {
ce45264e
IL		 710 case STV0900_AUTO_SEARCH:
711 dprintk("Auto\n");
a3a4f7e1
IL		 712 stv0900_write_reg(intp, FECM, 0x10);
713 stv0900_write_reg(intp, PRVIT, 0x3f);
ce45264e
IL		 714 break;
715 case STV0900_SEARCH_DVBS1:
716 dprintk("DVBS1\n");
a3a4f7e1
IL		 717 stv0900_write_reg(intp, FECM, 0x00);
718 switch (fec) {
ce45264e
IL		 719 case STV0900_FEC_UNKNOWN:
720 default:
a3a4f7e1 721 stv0900_write_reg(intp, PRVIT, 0x2f);
ce45264e
IL		 722 break;
723 case STV0900_FEC_1_2:
a3a4f7e1 724 stv0900_write_reg(intp, PRVIT, 0x01);
ce45264e
IL		 725 break;
726 case STV0900_FEC_2_3:
a3a4f7e1 727 stv0900_write_reg(intp, PRVIT, 0x02);
ce45264e
IL		 728 break;
729 case STV0900_FEC_3_4:
a3a4f7e1 730 stv0900_write_reg(intp, PRVIT, 0x04);
ce45264e
IL		 731 break;
732 case STV0900_FEC_5_6:
a3a4f7e1 733 stv0900_write_reg(intp, PRVIT, 0x08);
ce45264e
IL		 734 break;
735 case STV0900_FEC_7_8:
a3a4f7e1 736 stv0900_write_reg(intp, PRVIT, 0x20);
ce45264e
IL		 737 break;
738 }
739
740 break;
741 case STV0900_SEARCH_DSS:
742 dprintk("DSS\n");
a3a4f7e1
IL		 743 stv0900_write_reg(intp, FECM, 0x80);
744 switch (fec) {
ce45264e
IL		 745 case STV0900_FEC_UNKNOWN:
746 default:
a3a4f7e1 747 stv0900_write_reg(intp, PRVIT, 0x13);
ce45264e
IL		 748 break;
749 case STV0900_FEC_1_2:
a3a4f7e1 750 stv0900_write_reg(intp, PRVIT, 0x01);
ce45264e
IL		 751 break;
752 case STV0900_FEC_2_3:
a3a4f7e1 753 stv0900_write_reg(intp, PRVIT, 0x02);
ce45264e
IL		 754 break;
755 case STV0900_FEC_6_7:
a3a4f7e1 756 stv0900_write_reg(intp, PRVIT, 0x10);
ce45264e
IL		 757 break;
758 }
759 break;
760 default:
761 break;
762 }
763}
764
a3a4f7e1
IL		 765static enum fe_stv0900_fec stv0900_get_vit_fec(struct stv0900_internal *intp,
766 enum fe_stv0900_demod_num demod)
767{
768 enum fe_stv0900_fec prate;
769 s32 rate_fld = stv0900_get_bits(intp, VIT_CURPUN);
770
771 switch (rate_fld) {
772 case 13:
773 prate = STV0900_FEC_1_2;
774 break;
775 case 18:
776 prate = STV0900_FEC_2_3;
777 break;
778 case 21:
779 prate = STV0900_FEC_3_4;
780 break;
781 case 24:
782 prate = STV0900_FEC_5_6;
783 break;
784 case 25:
785 prate = STV0900_FEC_6_7;
786 break;
787 case 26:
788 prate = STV0900_FEC_7_8;
789 break;
790 default:
791 prate = STV0900_FEC_UNKNOWN;
792 break;
793 }
794
795 return prate;
796}
797
521e86eb 798static void stv0900_set_dvbs1_track_car_loop(struct stv0900_internal *intp,
a3a4f7e1
IL		 799 enum fe_stv0900_demod_num demod,
800 u32 srate)
801{
802 if (intp->chip_id >= 0x30) {
803 if (srate >= 15000000) {
804 stv0900_write_reg(intp, ACLC, 0x2b);
805 stv0900_write_reg(intp, BCLC, 0x1a);
806 } else if ((srate >= 7000000) && (15000000 > srate)) {
807 stv0900_write_reg(intp, ACLC, 0x0c);
808 stv0900_write_reg(intp, BCLC, 0x1b);
809 } else if (srate < 7000000) {
810 stv0900_write_reg(intp, ACLC, 0x2c);
811 stv0900_write_reg(intp, BCLC, 0x1c);
812 }
813
814 } else { /*cut 2.0 and 1.x*/
815 stv0900_write_reg(intp, ACLC, 0x1a);
816 stv0900_write_reg(intp, BCLC, 0x09);
817 }
818
819}
820
ce45264e
IL		 821static void stv0900_track_optimization(struct dvb_frontend *fe)
822{
823 struct stv0900_state *state = fe->demodulator_priv;
a3a4f7e1 824 struct stv0900_internal *intp = state->internal;
ce45264e
IL		 825 enum fe_stv0900_demod_num demod = state->demod;
826
a3a4f7e1
IL		 827 s32 srate,
828 pilots,
829 aclc,
830 freq1,
831 freq0,
832 i = 0,
833 timed,
834 timef,
835 blind_tun_sw = 0,
836 modulation;
ce45264e 837
ce45264e
IL		 838 enum fe_stv0900_modcode foundModcod;
839
8171c205 840 dprintk("%s\n", __func__);
ce45264e 841
a3a4f7e1
IL		 842 srate = stv0900_get_symbol_rate(intp, intp->mclk, demod);
843 srate += stv0900_get_timing_offst(intp, srate, demod);
ce45264e 844
a3a4f7e1
IL		 845 switch (intp->result[demod].standard) {
846 case STV0900_DVBS1_STANDARD:
847 case STV0900_DSS_STANDARD:
848 dprintk("%s: found DVB-S or DSS\n", __func__);
849 if (intp->srch_standard[demod] == STV0900_AUTO_SEARCH) {
850 stv0900_write_bits(intp, DVBS1_ENABLE, 1);
851 stv0900_write_bits(intp, DVBS2_ENABLE, 0);
852 }
ce45264e 853
a3a4f7e1
IL		 854 stv0900_write_bits(intp, ROLLOFF_CONTROL, intp->rolloff);
855 stv0900_write_bits(intp, MANUALSX_ROLLOFF, 1);
ce45264e 856
a3a4f7e1
IL		 857 if (intp->chip_id < 0x30) {
858 stv0900_write_reg(intp, ERRCTRL1, 0x75);
ce45264e 859 break;
a3a4f7e1 860 }
ce45264e 861
a3a4f7e1
IL		 862 if (stv0900_get_vit_fec(intp, demod) == STV0900_FEC_1_2) {
863 stv0900_write_reg(intp, GAUSSR0, 0x98);
864 stv0900_write_reg(intp, CCIR0, 0x18);
865 } else {
866 stv0900_write_reg(intp, GAUSSR0, 0x18);
867 stv0900_write_reg(intp, CCIR0, 0x18);
868 }
ce45264e 869
a3a4f7e1
IL		 870 stv0900_write_reg(intp, ERRCTRL1, 0x75);
871 break;
872 case STV0900_DVBS2_STANDARD:
873 dprintk("%s: found DVB-S2\n", __func__);
874 stv0900_write_bits(intp, DVBS1_ENABLE, 0);
875 stv0900_write_bits(intp, DVBS2_ENABLE, 1);
876 stv0900_write_reg(intp, ACLC, 0);
877 stv0900_write_reg(intp, BCLC, 0);
878 if (intp->result[demod].frame_len == STV0900_LONG_FRAME) {
879 foundModcod = stv0900_get_bits(intp, DEMOD_MODCOD);
880 pilots = stv0900_get_bits(intp, DEMOD_TYPE) & 0x01;
881 aclc = stv0900_get_optim_carr_loop(srate,
882 foundModcod,
883 pilots,
884 intp->chip_id);
885 if (foundModcod <= STV0900_QPSK_910)
886 stv0900_write_reg(intp, ACLC2S2Q, aclc);
887 else if (foundModcod <= STV0900_8PSK_910) {
888 stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
889 stv0900_write_reg(intp, ACLC2S28, aclc);
ce45264e
IL		 890 }
891
a3a4f7e1
IL		 892 if ((intp->demod_mode == STV0900_SINGLE) &&
893 (foundModcod > STV0900_8PSK_910)) {
894 if (foundModcod <= STV0900_16APSK_910) {
895 stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
896 stv0900_write_reg(intp, ACLC2S216A,
897 aclc);
898 } else if (foundModcod <= STV0900_32APSK_910) {
899 stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
900 stv0900_write_reg(intp, ACLC2S232A,
901 aclc);
902 }
903 }
ce45264e 904
a3a4f7e1
IL		 905 } else {
906 modulation = intp->result[demod].modulation;
907 aclc = stv0900_get_optim_short_carr_loop(srate,
908 modulation, intp->chip_id);
909 if (modulation == STV0900_QPSK)
910 stv0900_write_reg(intp, ACLC2S2Q, aclc);
911 else if (modulation == STV0900_8PSK) {
912 stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
913 stv0900_write_reg(intp, ACLC2S28, aclc);
914 } else if (modulation == STV0900_16APSK) {
915 stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
916 stv0900_write_reg(intp, ACLC2S216A, aclc);
917 } else if (modulation == STV0900_32APSK) {
918 stv0900_write_reg(intp, ACLC2S2Q, 0x2a);
919 stv0900_write_reg(intp, ACLC2S232A, aclc);
ce45264e
IL		 920 }
921
ce45264e
IL		 922 }
923
a3a4f7e1
IL		 924 if (intp->chip_id <= 0x11) {
925 if (intp->demod_mode != STV0900_SINGLE)
926 stv0900_activate_s2_modcod(intp, demod);
ce45264e 927
ce45264e
IL		 928 }
929
a3a4f7e1
IL		 930 stv0900_write_reg(intp, ERRCTRL1, 0x67);
931 break;
932 case STV0900_UNKNOWN_STANDARD:
933 default:
934 dprintk("%s: found unknown standard\n", __func__);
935 stv0900_write_bits(intp, DVBS1_ENABLE, 1);
936 stv0900_write_bits(intp, DVBS2_ENABLE, 1);
937 break;
938 }
ce45264e 939
a3a4f7e1
IL		 940 freq1 = stv0900_read_reg(intp, CFR2);
941 freq0 = stv0900_read_reg(intp, CFR1);
a3a4f7e1
IL		 942 if (intp->srch_algo[demod] == STV0900_BLIND_SEARCH) {
943 stv0900_write_reg(intp, SFRSTEP, 0x00);
944 stv0900_write_bits(intp, SCAN_ENABLE, 0);
945 stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
946 stv0900_write_reg(intp, TMGCFG2, 0xc1);
947 stv0900_set_symbol_rate(intp, intp->mclk, srate, demod);
948 blind_tun_sw = 1;
949 if (intp->result[demod].standard != STV0900_DVBS2_STANDARD)
950 stv0900_set_dvbs1_track_car_loop(intp, demod, srate);
ce45264e 951
a3a4f7e1 952 }
ce45264e 953
a3a4f7e1
IL		 954 if (intp->chip_id >= 0x20) {
955 if ((intp->srch_standard[demod] == STV0900_SEARCH_DVBS1) ||
956 (intp->srch_standard[demod] ==
957 STV0900_SEARCH_DSS) ||
958 (intp->srch_standard[demod] ==
959 STV0900_AUTO_SEARCH)) {
960 stv0900_write_reg(intp, VAVSRVIT, 0x0a);
961 stv0900_write_reg(intp, VITSCALE, 0x0);
962 }
963 }
ce45264e 964
a3a4f7e1
IL		 965 if (intp->chip_id < 0x20)
966 stv0900_write_reg(intp, CARHDR, 0x08);
ce45264e 967
a3a4f7e1
IL		 968 if (intp->chip_id == 0x10)
969 stv0900_write_reg(intp, CORRELEXP, 0x0a);
ce45264e 970
a3a4f7e1 971 stv0900_write_reg(intp, AGC2REF, 0x38);
ce45264e 972
a3a4f7e1
IL		 973 if ((intp->chip_id >= 0x20) ||
974 (blind_tun_sw == 1) ||
975 (intp->symbol_rate[demod] < 10000000)) {
976 stv0900_write_reg(intp, CFRINIT1, freq1);
977 stv0900_write_reg(intp, CFRINIT0, freq0);
978 intp->bw[demod] = stv0900_carrier_width(srate,
979 intp->rolloff) + 10000000;
ce45264e 980
a3a4f7e1 981 if ((intp->chip_id >= 0x20) || (blind_tun_sw == 1)) {
cd79d33e
IL		 982 if (intp->srch_algo[demod] != STV0900_WARM_START) {
983 if (intp->tuner_type[demod] == 3)
984 stv0900_set_tuner_auto(intp,
985 intp->freq[demod],
986 intp->bw[demod],
987 demod);
988 else
989 stv0900_set_bandwidth(fe,
990 intp->bw[demod]);
991 }
a3a4f7e1 992 }
ce45264e 993
a3a4f7e1
IL		 994 if ((intp->srch_algo[demod] == STV0900_BLIND_SEARCH) ||
995 (intp->symbol_rate[demod] < 10000000))
996 msleep(50);
997 else
998 msleep(5);
ce45264e 999
a3a4f7e1
IL		 1000 stv0900_get_lock_timeout(&timed, &timef, srate,
1001 STV0900_WARM_START);
ce45264e 1002
a3a4f7e1
IL		 1003 if (stv0900_get_demod_lock(intp, demod, timed / 2) == FALSE) {
1004 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1005 stv0900_write_reg(intp, CFRINIT1, freq1);
1006 stv0900_write_reg(intp, CFRINIT0, freq0);
1007 stv0900_write_reg(intp, DMDISTATE, 0x18);
1008 i = 0;
1009 while ((stv0900_get_demod_lock(intp,
1010 demod,
1011 timed / 2) == FALSE) &&
1012 (i <= 2)) {
1013 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1014 stv0900_write_reg(intp, CFRINIT1, freq1);
1015 stv0900_write_reg(intp, CFRINIT0, freq0);
1016 stv0900_write_reg(intp, DMDISTATE, 0x18);
1017 i++;
ce45264e 1018 }
a3a4f7e1 1019 }
ce45264e 1020
a3a4f7e1 1021 }
ce45264e 1022
a3a4f7e1
IL		 1023 if (intp->chip_id >= 0x20)
1024 stv0900_write_reg(intp, CARFREQ, 0x49);
ce45264e 1025
a3a4f7e1
IL		 1026 if ((intp->result[demod].standard == STV0900_DVBS1_STANDARD) ||
1027 (intp->result[demod].standard == STV0900_DSS_STANDARD))
1028 stv0900_set_viterbi_tracq(intp, demod);
ce45264e 1029
a3a4f7e1 1030}
ce45264e 1031
a3a4f7e1
IL		 1032static int stv0900_get_fec_lock(struct stv0900_internal *intp,
1033 enum fe_stv0900_demod_num demod, s32 time_out)
1034{
1035 s32 timer = 0, lock = 0;
ce45264e 1036
a3a4f7e1 1037 enum fe_stv0900_search_state dmd_state;
ce45264e 1038
8171c205 1039 dprintk("%s\n", __func__);
ce45264e 1040
a3a4f7e1 1041 dmd_state = stv0900_get_bits(intp, HEADER_MODE);
ce45264e
IL		 1042
1043 while ((timer < time_out) && (lock == 0)) {
1044 switch (dmd_state) {
1045 case STV0900_SEARCH:
1046 case STV0900_PLH_DETECTED:
1047 default:
1048 lock = 0;
1049 break;
1050 case STV0900_DVBS2_FOUND:
a3a4f7e1 1051 lock = stv0900_get_bits(intp, PKTDELIN_LOCK);
ce45264e
IL		 1052 break;
1053 case STV0900_DVBS_FOUND:
a3a4f7e1 1054 lock = stv0900_get_bits(intp, LOCKEDVIT);
ce45264e
IL		 1055 break;
1056 }
1057
1058 if (lock == 0) {
1059 msleep(10);
1060 timer += 10;
1061 }
1062 }
1063
1064 if (lock)
a3a4f7e1 1065 dprintk("%s: DEMOD FEC LOCK OK\n", __func__);
ce45264e 1066 else
a3a4f7e1 1067 dprintk("%s: DEMOD FEC LOCK FAIL\n", __func__);
ce45264e
IL		 1068
1069 return lock;
1070}
1071
a3a4f7e1 1072static int stv0900_wait_for_lock(struct stv0900_internal *intp,
ce45264e
IL		 1073 enum fe_stv0900_demod_num demod,
1074 s32 dmd_timeout, s32 fec_timeout)
1075{
1076
a3a4f7e1 1077 s32 timer = 0, lock = 0;
ce45264e 1078
8171c205 1079 dprintk("%s\n", __func__);
ce45264e 1080
a3a4f7e1 1081 lock = stv0900_get_demod_lock(intp, demod, dmd_timeout);
ce45264e
IL		 1082
1083 if (lock)
a3a4f7e1 1084 lock = lock && stv0900_get_fec_lock(intp, demod, fec_timeout);
ce45264e
IL		 1085
1086 if (lock) {
1087 lock = 0;
1088
a3a4f7e1
IL		 1089 dprintk("%s: Timer = %d, time_out = %d\n",
1090 __func__, timer, fec_timeout);
ce45264e
IL		 1091
1092 while ((timer < fec_timeout) && (lock == 0)) {
a3a4f7e1 1093 lock = stv0900_get_bits(intp, TSFIFO_LINEOK);
ce45264e
IL		 1094 msleep(1);
1095 timer++;
1096 }
1097 }
1098
1099 if (lock)
8171c205 1100 dprintk("%s: DEMOD LOCK OK\n", __func__);
ce45264e 1101 else
8171c205 1102 dprintk("%s: DEMOD LOCK FAIL\n", __func__);
ce45264e
IL		 1103
1104 if (lock)
1105 return TRUE;
1106 else
1107 return FALSE;
1108}
1109
1110enum fe_stv0900_tracking_standard stv0900_get_standard(struct dvb_frontend *fe,
1111 enum fe_stv0900_demod_num demod)
1112{
1113 struct stv0900_state *state = fe->demodulator_priv;
a3a4f7e1 1114 struct stv0900_internal *intp = state->internal;
ce45264e 1115 enum fe_stv0900_tracking_standard fnd_standard;
ce45264e 1116
a3a4f7e1 1117 int hdr_mode = stv0900_get_bits(intp, HEADER_MODE);
ce45264e 1118
a3a4f7e1
IL		 1119 switch (hdr_mode) {
1120 case 2:
ce45264e 1121 fnd_standard = STV0900_DVBS2_STANDARD;
a3a4f7e1
IL		 1122 break;
1123 case 3:
1124 if (stv0900_get_bits(intp, DSS_DVB) == 1)
ce45264e
IL		 1125 fnd_standard = STV0900_DSS_STANDARD;
1126 else
1127 fnd_standard = STV0900_DVBS1_STANDARD;
a3a4f7e1
IL		 1128
1129 break;
1130 default:
ce45264e 1131 fnd_standard = STV0900_UNKNOWN_STANDARD;
a3a4f7e1
IL		 1132 }
1133
1134 dprintk("%s: standard %d\n", __func__, fnd_standard);
ce45264e
IL		 1135
1136 return fnd_standard;
1137}
1138
a3a4f7e1 1139static s32 stv0900_get_carr_freq(struct stv0900_internal *intp, u32 mclk,
ce45264e
IL		 1140 enum fe_stv0900_demod_num demod)
1141{
a3a4f7e1
IL		 1142 s32 derot,
1143 rem1,
1144 rem2,
1145 intval1,
1146 intval2;
ce45264e 1147
a3a4f7e1
IL		 1148 derot = (stv0900_get_bits(intp, CAR_FREQ2) << 16) +
1149 (stv0900_get_bits(intp, CAR_FREQ1) << 8) +
1150 (stv0900_get_bits(intp, CAR_FREQ0));
ce45264e
IL		 1151
1152 derot = ge2comp(derot, 24);
1153 intval1 = mclk >> 12;
1154 intval2 = derot >> 12;
1155 rem1 = mclk % 0x1000;
1156 rem2 = derot % 0x1000;
1157 derot = (intval1 * intval2) +
1158 ((intval1 * rem2) >> 12) +
1159 ((intval2 * rem1) >> 12);
1160
1161 return derot;
1162}
1163
1164static u32 stv0900_get_tuner_freq(struct dvb_frontend *fe)
1165{
1166 struct dvb_frontend_ops *frontend_ops = NULL;
1167 struct dvb_tuner_ops *tuner_ops = NULL;
a3a4f7e1 1168 u32 freq = 0;
ce45264e
IL		 1169
1170 if (&fe->ops)
1171 frontend_ops = &fe->ops;
1172
1173 if (&frontend_ops->tuner_ops)
1174 tuner_ops = &frontend_ops->tuner_ops;
1175
1176 if (tuner_ops->get_frequency) {
a3a4f7e1 1177 if ((tuner_ops->get_frequency(fe, &freq)) < 0)
ce45264e
IL		 1178 dprintk("%s: Invalid parameter\n", __func__);
1179 else
a3a4f7e1 1180 dprintk("%s: Frequency=%d\n", __func__, freq);
ce45264e 1181
ce45264e
IL		 1182 }
1183
a3a4f7e1 1184 return freq;
ce45264e
IL		 1185}
1186
a3a4f7e1
IL		 1187static enum
1188fe_stv0900_signal_type stv0900_get_signal_params(struct dvb_frontend *fe)
ce45264e
IL		 1189{
1190 struct stv0900_state *state = fe->demodulator_priv;
a3a4f7e1 1191 struct stv0900_internal *intp = state->internal;
ce45264e
IL		 1192 enum fe_stv0900_demod_num demod = state->demod;
1193 enum fe_stv0900_signal_type range = STV0900_OUTOFRANGE;
a3a4f7e1
IL		 1194 struct stv0900_signal_info *result = &intp->result[demod];
1195 s32 offsetFreq,
1196 srate_offset;
1197 int i = 0,
1198 d = demod;
ce45264e
IL		 1199
1200 u8 timing;
1201
1202 msleep(5);
a3a4f7e1
IL		 1203 if (intp->srch_algo[d] == STV0900_BLIND_SEARCH) {
1204 timing = stv0900_read_reg(intp, TMGREG2);
1205 i = 0;
1206 stv0900_write_reg(intp, SFRSTEP, 0x5c);
1207
1208 while ((i <= 50) && (timing != 0) && (timing != 0xff)) {
1209 timing = stv0900_read_reg(intp, TMGREG2);
1210 msleep(5);
1211 i += 5;
ce45264e 1212 }
a3a4f7e1 1213 }
ce45264e 1214
a3a4f7e1 1215 result->standard = stv0900_get_standard(fe, d);
cd79d33e
IL		 1216 if (intp->tuner_type[demod] == 3)
1217 result->frequency = stv0900_get_freq_auto(intp, d);
1218 else
1219 result->frequency = stv0900_get_tuner_freq(fe);
1220
a3a4f7e1
IL		 1221 offsetFreq = stv0900_get_carr_freq(intp, intp->mclk, d) / 1000;
1222 result->frequency += offsetFreq;
1223 result->symbol_rate = stv0900_get_symbol_rate(intp, intp->mclk, d);
1224 srate_offset = stv0900_get_timing_offst(intp, result->symbol_rate, d);
1225 result->symbol_rate += srate_offset;
1226 result->fec = stv0900_get_vit_fec(intp, d);
1227 result->modcode = stv0900_get_bits(intp, DEMOD_MODCOD);
1228 result->pilot = stv0900_get_bits(intp, DEMOD_TYPE) & 0x01;
1229 result->frame_len = ((u32)stv0900_get_bits(intp, DEMOD_TYPE)) >> 1;
1230 result->rolloff = stv0900_get_bits(intp, ROLLOFF_STATUS);
fad93fdb
AO		 1231
1232 dprintk("%s: modcode=0x%x \n", __func__, result->modcode);
1233
a3a4f7e1
IL		 1234 switch (result->standard) {
1235 case STV0900_DVBS2_STANDARD:
1236 result->spectrum = stv0900_get_bits(intp, SPECINV_DEMOD);
1237 if (result->modcode <= STV0900_QPSK_910)
1238 result->modulation = STV0900_QPSK;
1239 else if (result->modcode <= STV0900_8PSK_910)
1240 result->modulation = STV0900_8PSK;
1241 else if (result->modcode <= STV0900_16APSK_910)
1242 result->modulation = STV0900_16APSK;
1243 else if (result->modcode <= STV0900_32APSK_910)
1244 result->modulation = STV0900_32APSK;
1245 else
1246 result->modulation = STV0900_UNKNOWN;
ce45264e 1247 break;
a3a4f7e1
IL		 1248 case STV0900_DVBS1_STANDARD:
1249 case STV0900_DSS_STANDARD:
1250 result->spectrum = stv0900_get_bits(intp, IQINV);
1251 result->modulation = STV0900_QPSK;
1252 break;
1253 default:
1254 break;
1255 }
ce45264e 1256
a3a4f7e1
IL		 1257 if ((intp->srch_algo[d] == STV0900_BLIND_SEARCH) ||
1258 (intp->symbol_rate[d] < 10000000)) {
1259 offsetFreq = result->frequency - intp->freq[d];
cd79d33e
IL		 1260 if (intp->tuner_type[demod] == 3)
1261 intp->freq[d] = stv0900_get_freq_auto(intp, d);
1262 else
1263 intp->freq[d] = stv0900_get_tuner_freq(fe);
1264
a3a4f7e1
IL		 1265 if (ABS(offsetFreq) <= ((intp->srch_range[d] / 2000) + 500))
1266 range = STV0900_RANGEOK;
1267 else if (ABS(offsetFreq) <=
1268 (stv0900_carrier_width(result->symbol_rate,
1269 result->rolloff) / 2000))
1270 range = STV0900_RANGEOK;
ce45264e 1271
a3a4f7e1
IL		 1272 } else if (ABS(offsetFreq) <= ((intp->srch_range[d] / 2000) + 500))
1273 range = STV0900_RANGEOK;
ce45264e 1274
a3a4f7e1 1275 dprintk("%s: range %d\n", __func__, range);
ce45264e
IL		 1276
1277 return range;
1278}
1279
a3a4f7e1
IL		 1280static enum
1281fe_stv0900_signal_type stv0900_dvbs1_acq_workaround(struct dvb_frontend *fe)
ce45264e
IL		 1282{
1283 struct stv0900_state *state = fe->demodulator_priv;
a3a4f7e1 1284 struct stv0900_internal *intp = state->internal;
ce45264e 1285 enum fe_stv0900_demod_num demod = state->demod;
1ebcad77 1286 enum fe_stv0900_signal_type signal_type = STV0900_NODATA;
ce45264e 1287
a3a4f7e1
IL		 1288 s32 srate,
1289 demod_timeout,
1290 fec_timeout,
1291 freq1,
1292 freq0;
1293
1294 intp->result[demod].locked = FALSE;
1295
1296 if (stv0900_get_bits(intp, HEADER_MODE) == STV0900_DVBS_FOUND) {
1297 srate = stv0900_get_symbol_rate(intp, intp->mclk, demod);
1298 srate += stv0900_get_timing_offst(intp, srate, demod);
1299 if (intp->srch_algo[demod] == STV0900_BLIND_SEARCH)
1300 stv0900_set_symbol_rate(intp, intp->mclk, srate, demod);
1301
1302 stv0900_get_lock_timeout(&demod_timeout, &fec_timeout,
1303 srate, STV0900_WARM_START);
1304 freq1 = stv0900_read_reg(intp, CFR2);
1305 freq0 = stv0900_read_reg(intp, CFR1);
1306 stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
1307 stv0900_write_bits(intp, SPECINV_CONTROL,
1308 STV0900_IQ_FORCE_SWAPPED);
1309 stv0900_write_reg(intp, DMDISTATE, 0x1c);
1310 stv0900_write_reg(intp, CFRINIT1, freq1);
1311 stv0900_write_reg(intp, CFRINIT0, freq0);
1312 stv0900_write_reg(intp, DMDISTATE, 0x18);
1313 if (stv0900_wait_for_lock(intp, demod,
1314 demod_timeout, fec_timeout) == TRUE) {
1315 intp->result[demod].locked = TRUE;
1316 signal_type = stv0900_get_signal_params(fe);
1317 stv0900_track_optimization(fe);
1318 } else {
1319 stv0900_write_bits(intp, SPECINV_CONTROL,
1320 STV0900_IQ_FORCE_NORMAL);
1321 stv0900_write_reg(intp, DMDISTATE, 0x1c);
1322 stv0900_write_reg(intp, CFRINIT1, freq1);
1323 stv0900_write_reg(intp, CFRINIT0, freq0);
1324 stv0900_write_reg(intp, DMDISTATE, 0x18);
1325 if (stv0900_wait_for_lock(intp, demod,
1326 demod_timeout, fec_timeout) == TRUE) {
1327 intp->result[demod].locked = TRUE;
ce45264e
IL		 1328 signal_type = stv0900_get_signal_params(fe);
1329 stv0900_track_optimization(fe);
ce45264e
IL		 1330 }
1331
a3a4f7e1 1332 }
ce45264e 1333
a3a4f7e1
IL		 1334 } else
1335 intp->result[demod].locked = FALSE;
ce45264e
IL		 1336
1337 return signal_type;
1338}
1339
a3a4f7e1 1340static u16 stv0900_blind_check_agc2_min_level(struct stv0900_internal *intp,
ce45264e
IL		 1341 enum fe_stv0900_demod_num demod)
1342{
1343 u32 minagc2level = 0xffff,
1344 agc2level,
1345 init_freq, freq_step;
1346
1347 s32 i, j, nb_steps, direction;
1348
8171c205 1349 dprintk("%s\n", __func__);
ce45264e 1350
a3a4f7e1
IL		 1351 stv0900_write_reg(intp, AGC2REF, 0x38);
1352 stv0900_write_bits(intp, SCAN_ENABLE, 0);
1353 stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
ce45264e 1354
a3a4f7e1
IL		 1355 stv0900_write_bits(intp, AUTO_GUP, 1);
1356 stv0900_write_bits(intp, AUTO_GLOW, 1);
ce45264e 1357
a3a4f7e1 1358 stv0900_write_reg(intp, DMDT0M, 0x0);
ce45264e 1359
a3a4f7e1
IL		 1360 stv0900_set_symbol_rate(intp, intp->mclk, 1000000, demod);
1361 nb_steps = -1 + (intp->srch_range[demod] / 1000000);
1362 nb_steps /= 2;
1363 nb_steps = (2 * nb_steps) + 1;
ce45264e 1364
a3a4f7e1
IL		 1365 if (nb_steps < 0)
1366 nb_steps = 1;
ce45264e 1367
a3a4f7e1 1368 direction = 1;
ce45264e 1369
a3a4f7e1 1370 freq_step = (1000000 << 8) / (intp->mclk >> 8);
ce45264e 1371
a3a4f7e1 1372 init_freq = 0;
ce45264e 1373
a3a4f7e1
IL		 1374 for (i = 0; i < nb_steps; i++) {
1375 if (direction > 0)
1376 init_freq = init_freq + (freq_step * i);
1377 else
1378 init_freq = init_freq - (freq_step * i);
ce45264e 1379
a3a4f7e1
IL		 1380 direction *= -1;
1381 stv0900_write_reg(intp, DMDISTATE, 0x5C);
1382 stv0900_write_reg(intp, CFRINIT1, (init_freq >> 8) & 0xff);
1383 stv0900_write_reg(intp, CFRINIT0, init_freq & 0xff);
1384 stv0900_write_reg(intp, DMDISTATE, 0x58);
1385 msleep(10);
1386 agc2level = 0;
ce45264e 1387
a3a4f7e1
IL		 1388 for (j = 0; j < 10; j++)
1389 agc2level += (stv0900_read_reg(intp, AGC2I1) << 8)
1390 | stv0900_read_reg(intp, AGC2I0);
ce45264e 1391
a3a4f7e1 1392 agc2level /= 10;
ce45264e 1393
a3a4f7e1
IL		 1394 if (agc2level < minagc2level)
1395 minagc2level = agc2level;
ce45264e 1396
ce45264e
IL		 1397 }
1398
1399 return (u16)minagc2level;
1400}
1401
1402static u32 stv0900_search_srate_coarse(struct dvb_frontend *fe)
1403{
1404 struct stv0900_state *state = fe->demodulator_priv;
a3a4f7e1 1405 struct stv0900_internal *intp = state->internal;
ce45264e 1406 enum fe_stv0900_demod_num demod = state->demod;
a3a4f7e1 1407 int timing_lck = FALSE;
ce45264e
IL		 1408 s32 i, timingcpt = 0,
1409 direction = 1,
1410 nb_steps,
1411 current_step = 0,
1412 tuner_freq;
a3a4f7e1
IL		 1413 u32 agc2_th,
1414 coarse_srate = 0,
1415 agc2_integr = 0,
1416 currier_step = 1200;
ce45264e 1417
a3a4f7e1
IL		 1418 if (intp->chip_id >= 0x30)
1419 agc2_th = 0x2e00;
1420 else
1421 agc2_th = 0x1f00;
1422
1423 stv0900_write_bits(intp, DEMOD_MODE, 0x1f);
1424 stv0900_write_reg(intp, TMGCFG, 0x12);
1425 stv0900_write_reg(intp, TMGTHRISE, 0xf0);
1426 stv0900_write_reg(intp, TMGTHFALL, 0xe0);
1427 stv0900_write_bits(intp, SCAN_ENABLE, 1);
1428 stv0900_write_bits(intp, CFR_AUTOSCAN, 1);
1429 stv0900_write_reg(intp, SFRUP1, 0x83);
1430 stv0900_write_reg(intp, SFRUP0, 0xc0);
1431 stv0900_write_reg(intp, SFRLOW1, 0x82);
1432 stv0900_write_reg(intp, SFRLOW0, 0xa0);
1433 stv0900_write_reg(intp, DMDT0M, 0x0);
1434 stv0900_write_reg(intp, AGC2REF, 0x50);
1435
1436 if (intp->chip_id >= 0x30) {
1437 stv0900_write_reg(intp, CARFREQ, 0x99);
1438 stv0900_write_reg(intp, SFRSTEP, 0x98);
1439 } else if (intp->chip_id >= 0x20) {
1440 stv0900_write_reg(intp, CARFREQ, 0x6a);
1441 stv0900_write_reg(intp, SFRSTEP, 0x95);
1442 } else {
1443 stv0900_write_reg(intp, CARFREQ, 0xed);
1444 stv0900_write_reg(intp, SFRSTEP, 0x73);
1445 }
ce45264e 1446
a3a4f7e1
IL		 1447 if (intp->symbol_rate[demod] <= 2000000)
1448 currier_step = 1000;
1449 else if (intp->symbol_rate[demod] <= 5000000)
1450 currier_step = 2000;
1451 else if (intp->symbol_rate[demod] <= 12000000)
1452 currier_step = 3000;
1453 else
ce45264e
IL		 1454 currier_step = 5000;
1455
a3a4f7e1
IL		 1456 nb_steps = -1 + ((intp->srch_range[demod] / 1000) / currier_step);
1457 nb_steps /= 2;
1458 nb_steps = (2 * nb_steps) + 1;
ce45264e 1459
a3a4f7e1
IL		 1460 if (nb_steps < 0)
1461 nb_steps = 1;
1462 else if (nb_steps > 10) {
1463 nb_steps = 11;
1464 currier_step = (intp->srch_range[demod] / 1000) / 10;
1465 }
ce45264e 1466
a3a4f7e1
IL		 1467 current_step = 0;
1468 direction = 1;
ce45264e 1469
a3a4f7e1 1470 tuner_freq = intp->freq[demod];
ce45264e 1471
a3a4f7e1
IL		 1472 while ((timing_lck == FALSE) && (current_step < nb_steps)) {
1473 stv0900_write_reg(intp, DMDISTATE, 0x5f);
1474 stv0900_write_bits(intp, DEMOD_MODE, 0);
ce45264e 1475
a3a4f7e1 1476 msleep(50);
ce45264e 1477
a3a4f7e1
IL		 1478 for (i = 0; i < 10; i++) {
1479 if (stv0900_get_bits(intp, TMGLOCK_QUALITY) >= 2)
1480 timingcpt++;
ce45264e 1481
a3a4f7e1
IL		 1482 agc2_integr += (stv0900_read_reg(intp, AGC2I1) << 8) |
1483 stv0900_read_reg(intp, AGC2I0);
ce45264e
IL		 1484 }
1485
a3a4f7e1
IL		 1486 agc2_integr /= 10;
1487 coarse_srate = stv0900_get_symbol_rate(intp, intp->mclk, demod);
1488 current_step++;
1489 direction *= -1;
1490
1491 dprintk("lock: I2C_DEMOD_MODE_FIELD =0. Search started."
1492 " tuner freq=%d agc2=0x%x srate_coarse=%d tmg_cpt=%d\n",
1493 tuner_freq, agc2_integr, coarse_srate, timingcpt);
1494
1495 if ((timingcpt >= 5) &&
1496 (agc2_integr < agc2_th) &&
1497 (coarse_srate < 55000000) &&
1498 (coarse_srate > 850000))
1499 timing_lck = TRUE;
1500 else if (current_step < nb_steps) {
1501 if (direction > 0)
1502 tuner_freq += (current_step * currier_step);
1503 else
1504 tuner_freq -= (current_step * currier_step);
ce45264e 1505
cd79d33e
IL		 1506 if (intp->tuner_type[demod] == 3)
1507 stv0900_set_tuner_auto(intp, tuner_freq,
1508 intp->bw[demod], demod);
1509 else
1510 stv0900_set_tuner(fe, tuner_freq,
1511 intp->bw[demod]);
ce45264e 1512 }
ce45264e
IL		 1513 }
1514
a3a4f7e1
IL		 1515 if (timing_lck == FALSE)
1516 coarse_srate = 0;
1517 else
1518 coarse_srate = stv0900_get_symbol_rate(intp, intp->mclk, demod);
1519
ce45264e
IL		 1520 return coarse_srate;
1521}
1522
1523static u32 stv0900_search_srate_fine(struct dvb_frontend *fe)
1524{
1525 struct stv0900_state *state = fe->demodulator_priv;
a3a4f7e1 1526 struct stv0900_internal *intp = state->internal;
ce45264e 1527 enum fe_stv0900_demod_num demod = state->demod;
a3a4f7e1
IL		 1528 u32 coarse_srate,
1529 coarse_freq,
1530 symb,
1531 symbmax,
1532 symbmin,
1533 symbcomp;
1534
1535 coarse_srate = stv0900_get_symbol_rate(intp, intp->mclk, demod);
1536
1537 if (coarse_srate > 3000000) {
1538 symbmax = 13 * (coarse_srate / 10);
1539 symbmax = (symbmax / 1000) * 65536;
1540 symbmax /= (intp->mclk / 1000);
1541
1542 symbmin = 10 * (coarse_srate / 13);
1543 symbmin = (symbmin / 1000)*65536;
1544 symbmin /= (intp->mclk / 1000);
1545
1546 symb = (coarse_srate / 1000) * 65536;
1547 symb /= (intp->mclk / 1000);
1548 } else {
1549 symbmax = 13 * (coarse_srate / 10);
1550 symbmax = (symbmax / 100) * 65536;
1551 symbmax /= (intp->mclk / 100);
ce45264e 1552
a3a4f7e1
IL		 1553 symbmin = 10 * (coarse_srate / 14);
1554 symbmin = (symbmin / 100) * 65536;
1555 symbmin /= (intp->mclk / 100);
ce45264e 1556
a3a4f7e1
IL		 1557 symb = (coarse_srate / 100) * 65536;
1558 symb /= (intp->mclk / 100);
1559 }
ce45264e 1560
a3a4f7e1
IL		 1561 symbcomp = 13 * (coarse_srate / 10);
1562 coarse_freq = (stv0900_read_reg(intp, CFR2) << 8)
1563 | stv0900_read_reg(intp, CFR1);
1564
1565 if (symbcomp < intp->symbol_rate[demod])
1566 coarse_srate = 0;
1567 else {
1568 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1569 stv0900_write_reg(intp, TMGCFG2, 0xc1);
1570 stv0900_write_reg(intp, TMGTHRISE, 0x20);
1571 stv0900_write_reg(intp, TMGTHFALL, 0x00);
1572 stv0900_write_reg(intp, TMGCFG, 0xd2);
1573 stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
1574 stv0900_write_reg(intp, AGC2REF, 0x38);
1575
1576 if (intp->chip_id >= 0x30)
1577 stv0900_write_reg(intp, CARFREQ, 0x79);
1578 else if (intp->chip_id >= 0x20)
1579 stv0900_write_reg(intp, CARFREQ, 0x49);
1580 else
1581 stv0900_write_reg(intp, CARFREQ, 0xed);
ce45264e 1582
a3a4f7e1
IL		 1583 stv0900_write_reg(intp, SFRUP1, (symbmax >> 8) & 0x7f);
1584 stv0900_write_reg(intp, SFRUP0, (symbmax & 0xff));
ce45264e 1585
a3a4f7e1
IL		 1586 stv0900_write_reg(intp, SFRLOW1, (symbmin >> 8) & 0x7f);
1587 stv0900_write_reg(intp, SFRLOW0, (symbmin & 0xff));
1588
1589 stv0900_write_reg(intp, SFRINIT1, (symb >> 8) & 0xff);
1590 stv0900_write_reg(intp, SFRINIT0, (symb & 0xff));
1591
1592 stv0900_write_reg(intp, DMDT0M, 0x20);
1593 stv0900_write_reg(intp, CFRINIT1, (coarse_freq >> 8) & 0xff);
1594 stv0900_write_reg(intp, CFRINIT0, coarse_freq & 0xff);
1595 stv0900_write_reg(intp, DMDISTATE, 0x15);
ce45264e
IL		 1596 }
1597
1598 return coarse_srate;
1599}
1600
1601static int stv0900_blind_search_algo(struct dvb_frontend *fe)
1602{
1603 struct stv0900_state *state = fe->demodulator_priv;
a3a4f7e1 1604 struct stv0900_internal *intp = state->internal;
ce45264e 1605 enum fe_stv0900_demod_num demod = state->demod;
a3a4f7e1
IL		 1606 u8 k_ref_tmg,
1607 k_ref_tmg_max,
1608 k_ref_tmg_min;
1609 u32 coarse_srate,
1610 agc2_th;
1611 int lock = FALSE,
1612 coarse_fail = FALSE;
1613 s32 demod_timeout = 500,
1614 fec_timeout = 50,
1615 fail_cpt,
1616 i,
1617 agc2_overflow;
1618 u16 agc2_int;
1619 u8 dstatus2;
ce45264e 1620
8171c205 1621 dprintk("%s\n", __func__);
ce45264e 1622
a3a4f7e1 1623 if (intp->chip_id < 0x20) {
ce45264e
IL		 1624 k_ref_tmg_max = 233;
1625 k_ref_tmg_min = 143;
1626 } else {
a3a4f7e1
IL		 1627 k_ref_tmg_max = 110;
1628 k_ref_tmg_min = 10;
ce45264e
IL		 1629 }
1630
a3a4f7e1
IL		 1631 if (intp->chip_id <= 0x20)
1632 agc2_th = STV0900_BLIND_SEARCH_AGC2_TH;
1633 else
1634 agc2_th = STV0900_BLIND_SEARCH_AGC2_TH_CUT30;
ce45264e 1635
a3a4f7e1 1636 agc2_int = stv0900_blind_check_agc2_min_level(intp, demod);
ce45264e 1637
fad93fdb
AO		 1638 dprintk("%s agc2_int=%d agc2_th=%d \n", __func__, agc2_int, agc2_th);
1639 if (agc2_int > agc2_th)
a3a4f7e1 1640 return FALSE;
ce45264e 1641
a3a4f7e1
IL		 1642 if (intp->chip_id == 0x10)
1643 stv0900_write_reg(intp, CORRELEXP, 0xaa);
ce45264e 1644
a3a4f7e1
IL		 1645 if (intp->chip_id < 0x20)
1646 stv0900_write_reg(intp, CARHDR, 0x55);
1647 else
1648 stv0900_write_reg(intp, CARHDR, 0x20);
ce45264e 1649
a3a4f7e1
IL		 1650 if (intp->chip_id <= 0x20)
1651 stv0900_write_reg(intp, CARCFG, 0xc4);
1652 else
1653 stv0900_write_reg(intp, CARCFG, 0x6);
ce45264e 1654
a3a4f7e1 1655 stv0900_write_reg(intp, RTCS2, 0x44);
ce45264e 1656
a3a4f7e1
IL		 1657 if (intp->chip_id >= 0x20) {
1658 stv0900_write_reg(intp, EQUALCFG, 0x41);
1659 stv0900_write_reg(intp, FFECFG, 0x41);
1660 stv0900_write_reg(intp, VITSCALE, 0x82);
1661 stv0900_write_reg(intp, VAVSRVIT, 0x0);
1662 }
ce45264e 1663
a3a4f7e1 1664 k_ref_tmg = k_ref_tmg_max;
ce45264e 1665
a3a4f7e1
IL		 1666 do {
1667 stv0900_write_reg(intp, KREFTMG, k_ref_tmg);
1668 if (stv0900_search_srate_coarse(fe) != 0) {
1669 coarse_srate = stv0900_search_srate_fine(fe);
1670
1671 if (coarse_srate != 0) {
1672 stv0900_get_lock_timeout(&demod_timeout,
1673 &fec_timeout,
1674 coarse_srate,
1675 STV0900_BLIND_SEARCH);
1676 lock = stv0900_get_demod_lock(intp,
1677 demod,
1678 demod_timeout);
1679 } else
1680 lock = FALSE;
1681 } else {
1682 fail_cpt = 0;
1683 agc2_overflow = 0;
ce45264e 1684
a3a4f7e1
IL		 1685 for (i = 0; i < 10; i++) {
1686 agc2_int = (stv0900_read_reg(intp, AGC2I1) << 8)
1687 | stv0900_read_reg(intp, AGC2I0);
ce45264e 1688
a3a4f7e1
IL		 1689 if (agc2_int >= 0xff00)
1690 agc2_overflow++;
ce45264e 1691
a3a4f7e1 1692 dstatus2 = stv0900_read_reg(intp, DSTATUS2);
ce45264e 1693
a3a4f7e1
IL		 1694 if (((dstatus2 & 0x1) == 0x1) &&
1695 ((dstatus2 >> 7) == 1))
1696 fail_cpt++;
1697 }
ce45264e 1698
a3a4f7e1
IL		 1699 if ((fail_cpt > 7) || (agc2_overflow > 7))
1700 coarse_fail = TRUE;
ce45264e 1701
a3a4f7e1
IL		 1702 lock = FALSE;
1703 }
1704 k_ref_tmg -= 30;
1705 } while ((k_ref_tmg >= k_ref_tmg_min) &&
1706 (lock == FALSE) &&
1707 (coarse_fail == FALSE));
ce45264e
IL		 1708
1709 return lock;
1710}
1711
a3a4f7e1 1712static void stv0900_set_viterbi_acq(struct stv0900_internal *intp,
ce45264e
IL		 1713 enum fe_stv0900_demod_num demod)
1714{
a3a4f7e1 1715 s32 vth_reg = VTH12;
ce45264e 1716
8171c205 1717 dprintk("%s\n", __func__);
ce45264e 1718
a3a4f7e1
IL		 1719 stv0900_write_reg(intp, vth_reg++, 0x96);
1720 stv0900_write_reg(intp, vth_reg++, 0x64);
1721 stv0900_write_reg(intp, vth_reg++, 0x36);
1722 stv0900_write_reg(intp, vth_reg++, 0x23);
1723 stv0900_write_reg(intp, vth_reg++, 0x1e);
1724 stv0900_write_reg(intp, vth_reg++, 0x19);
ce45264e
IL		 1725}
1726
a3a4f7e1 1727static void stv0900_set_search_standard(struct stv0900_internal *intp,
ce45264e
IL		 1728 enum fe_stv0900_demod_num demod)
1729{
1730
8171c205 1731 dprintk("%s\n", __func__);
ce45264e 1732
a3a4f7e1 1733 switch (intp->srch_standard[demod]) {
ce45264e
IL		 1734 case STV0900_SEARCH_DVBS1:
1735 dprintk("Search Standard = DVBS1\n");
1736 break;
1737 case STV0900_SEARCH_DSS:
1738 dprintk("Search Standard = DSS\n");
1739 case STV0900_SEARCH_DVBS2:
1740 break;
1741 dprintk("Search Standard = DVBS2\n");
1742 case STV0900_AUTO_SEARCH:
1743 default:
1744 dprintk("Search Standard = AUTO\n");
1745 break;
1746 }
1747
a3a4f7e1
IL		 1748 switch (intp->srch_standard[demod]) {
1749 case STV0900_SEARCH_DVBS1:
1750 case STV0900_SEARCH_DSS:
1751 stv0900_write_bits(intp, DVBS1_ENABLE, 1);
1752 stv0900_write_bits(intp, DVBS2_ENABLE, 0);
1753 stv0900_write_bits(intp, STOP_CLKVIT, 0);
1754 stv0900_set_dvbs1_track_car_loop(intp,
1755 demod,
1756 intp->symbol_rate[demod]);
1757 stv0900_write_reg(intp, CAR2CFG, 0x22);
1758
1759 stv0900_set_viterbi_acq(intp, demod);
1760 stv0900_set_viterbi_standard(intp,
1761 intp->srch_standard[demod],
1762 intp->fec[demod], demod);
ce45264e 1763
a3a4f7e1
IL		 1764 break;
1765 case STV0900_SEARCH_DVBS2:
1766 stv0900_write_bits(intp, DVBS1_ENABLE, 0);
1767 stv0900_write_bits(intp, DVBS2_ENABLE, 1);
1768 stv0900_write_bits(intp, STOP_CLKVIT, 1);
1769 stv0900_write_reg(intp, ACLC, 0x1a);
1770 stv0900_write_reg(intp, BCLC, 0x09);
1771 if (intp->chip_id <= 0x20) /*cut 1.x and 2.0*/
1772 stv0900_write_reg(intp, CAR2CFG, 0x26);
1773 else
1774 stv0900_write_reg(intp, CAR2CFG, 0x66);
ce45264e 1775
a3a4f7e1
IL		 1776 if (intp->demod_mode != STV0900_SINGLE) {
1777 if (intp->chip_id <= 0x11)
1778 stv0900_stop_all_s2_modcod(intp, demod);
ce45264e 1779 else
a3a4f7e1 1780 stv0900_activate_s2_modcod(intp, demod);
ce45264e 1781
a3a4f7e1
IL		 1782 } else
1783 stv0900_activate_s2_modcod_single(intp, demod);
ce45264e 1784
a3a4f7e1 1785 stv0900_set_viterbi_tracq(intp, demod);
ce45264e 1786
a3a4f7e1
IL		 1787 break;
1788 case STV0900_AUTO_SEARCH:
1789 default:
1790 stv0900_write_bits(intp, DVBS1_ENABLE, 1);
1791 stv0900_write_bits(intp, DVBS2_ENABLE, 1);
1792 stv0900_write_bits(intp, STOP_CLKVIT, 0);
1793 stv0900_write_reg(intp, ACLC, 0x1a);
1794 stv0900_write_reg(intp, BCLC, 0x09);
1795 stv0900_set_dvbs1_track_car_loop(intp,
1796 demod,
1797 intp->symbol_rate[demod]);
1798 if (intp->chip_id <= 0x20) /*cut 1.x and 2.0*/
1799 stv0900_write_reg(intp, CAR2CFG, 0x26);
1800 else
1801 stv0900_write_reg(intp, CAR2CFG, 0x66);
ce45264e 1802
a3a4f7e1
IL		 1803 if (intp->demod_mode != STV0900_SINGLE) {
1804 if (intp->chip_id <= 0x11)
1805 stv0900_stop_all_s2_modcod(intp, demod);
ce45264e 1806 else
a3a4f7e1 1807 stv0900_activate_s2_modcod(intp, demod);
ce45264e 1808
a3a4f7e1
IL		 1809 } else
1810 stv0900_activate_s2_modcod_single(intp, demod);
ce45264e 1811
a3a4f7e1
IL		 1812 stv0900_set_viterbi_tracq(intp, demod);
1813 stv0900_set_viterbi_standard(intp,
1814 intp->srch_standard[demod],
1815 intp->fec[demod], demod);
ce45264e
IL		 1816
1817 break;
1818 }
1819}
1820
1821enum fe_stv0900_signal_type stv0900_algo(struct dvb_frontend *fe)
1822{
1823 struct stv0900_state *state = fe->demodulator_priv;
a3a4f7e1 1824 struct stv0900_internal *intp = state->internal;
ce45264e
IL		 1825 enum fe_stv0900_demod_num demod = state->demod;
1826
a3a4f7e1
IL		 1827 s32 demod_timeout = 500, fec_timeout = 50;
1828 s32 aq_power, agc1_power, i;
ce45264e
IL		 1829
1830 int lock = FALSE, low_sr = FALSE;
1831
1832 enum fe_stv0900_signal_type signal_type = STV0900_NOCARRIER;
1833 enum fe_stv0900_search_algo algo;
1834 int no_signal = FALSE;
1835
8171c205 1836 dprintk("%s\n", __func__);
ce45264e 1837
a3a4f7e1
IL		 1838 algo = intp->srch_algo[demod];
1839 stv0900_write_bits(intp, RST_HWARE, 1);
1840 stv0900_write_reg(intp, DMDISTATE, 0x5c);
1841 if (intp->chip_id >= 0x20) {
1842 if (intp->symbol_rate[demod] > 5000000)
1843 stv0900_write_reg(intp, CORRELABS, 0x9e);
ce45264e 1844 else
a3a4f7e1
IL		 1845 stv0900_write_reg(intp, CORRELABS, 0x82);
1846 } else
1847 stv0900_write_reg(intp, CORRELABS, 0x88);
ce45264e 1848
a3a4f7e1
IL		 1849 stv0900_get_lock_timeout(&demod_timeout, &fec_timeout,
1850 intp->symbol_rate[demod],
1851 intp->srch_algo[demod]);
ce45264e 1852
a3a4f7e1
IL		 1853 if (intp->srch_algo[demod] == STV0900_BLIND_SEARCH) {
1854 intp->bw[demod] = 2 * 36000000;
ce45264e 1855
a3a4f7e1
IL		 1856 stv0900_write_reg(intp, TMGCFG2, 0xc0);
1857 stv0900_write_reg(intp, CORRELMANT, 0x70);
ce45264e 1858
a3a4f7e1
IL		 1859 stv0900_set_symbol_rate(intp, intp->mclk, 1000000, demod);
1860 } else {
1861 stv0900_write_reg(intp, DMDT0M, 0x20);
1862 stv0900_write_reg(intp, TMGCFG, 0xd2);
ce45264e 1863
a3a4f7e1
IL		 1864 if (intp->symbol_rate[demod] < 2000000)
1865 stv0900_write_reg(intp, CORRELMANT, 0x63);
ce45264e 1866 else
a3a4f7e1 1867 stv0900_write_reg(intp, CORRELMANT, 0x70);
ce45264e 1868
a3a4f7e1 1869 stv0900_write_reg(intp, AGC2REF, 0x38);
ce45264e 1870
a3a4f7e1
IL		 1871 intp->bw[demod] =
1872 stv0900_carrier_width(intp->symbol_rate[demod],
1873 intp->rolloff);
1874 if (intp->chip_id >= 0x20) {
1875 stv0900_write_reg(intp, KREFTMG, 0x5a);
ce45264e 1876
a3a4f7e1
IL		 1877 if (intp->srch_algo[demod] == STV0900_COLD_START) {
1878 intp->bw[demod] += 10000000;
1879 intp->bw[demod] *= 15;
1880 intp->bw[demod] /= 10;
1881 } else if (intp->srch_algo[demod] == STV0900_WARM_START)
1882 intp->bw[demod] += 10000000;
ce45264e 1883
ce45264e 1884 } else {
a3a4f7e1
IL		 1885 stv0900_write_reg(intp, KREFTMG, 0xc1);
1886 intp->bw[demod] += 10000000;
1887 intp->bw[demod] *= 15;
1888 intp->bw[demod] /= 10;
1889 }
ce45264e 1890
a3a4f7e1 1891 stv0900_write_reg(intp, TMGCFG2, 0xc1);
ce45264e 1892
a3a4f7e1
IL		 1893 stv0900_set_symbol_rate(intp, intp->mclk,
1894 intp->symbol_rate[demod], demod);
1895 stv0900_set_max_symbol_rate(intp, intp->mclk,
1896 intp->symbol_rate[demod], demod);
1897 stv0900_set_min_symbol_rate(intp, intp->mclk,
1898 intp->symbol_rate[demod], demod);
1899 if (intp->symbol_rate[demod] >= 10000000)
1900 low_sr = FALSE;
1901 else
1902 low_sr = TRUE;
ce45264e 1903
a3a4f7e1 1904 }
ce45264e 1905
cd79d33e
IL		 1906 if (intp->tuner_type[demod] == 3)
1907 stv0900_set_tuner_auto(intp, intp->freq[demod],
1908 intp->bw[demod], demod);
1909 else
1910 stv0900_set_tuner(fe, intp->freq[demod], intp->bw[demod]);
ce45264e 1911
a3a4f7e1
IL		 1912 agc1_power = MAKEWORD(stv0900_get_bits(intp, AGCIQ_VALUE1),
1913 stv0900_get_bits(intp, AGCIQ_VALUE0));
ce45264e 1914
a3a4f7e1 1915 aq_power = 0;
ce45264e 1916
a3a4f7e1
IL		 1917 if (agc1_power == 0) {
1918 for (i = 0; i < 5; i++)
1919 aq_power += (stv0900_get_bits(intp, POWER_I) +
1920 stv0900_get_bits(intp, POWER_Q)) / 2;
ce45264e 1921
a3a4f7e1
IL		 1922 aq_power /= 5;
1923 }
ce45264e 1924
a3a4f7e1
IL		 1925 if ((agc1_power == 0) && (aq_power < IQPOWER_THRESHOLD)) {
1926 intp->result[demod].locked = FALSE;
1927 signal_type = STV0900_NOAGC1;
1928 dprintk("%s: NO AGC1, POWERI, POWERQ\n", __func__);
1929 } else {
1930 stv0900_write_bits(intp, SPECINV_CONTROL,
1931 intp->srch_iq_inv[demod]);
1932 if (intp->chip_id <= 0x20) /*cut 2.0*/
1933 stv0900_write_bits(intp, MANUALSX_ROLLOFF, 1);
1934 else /*cut 3.0*/
1935 stv0900_write_bits(intp, MANUALS2_ROLLOFF, 1);
ce45264e 1936
a3a4f7e1 1937 stv0900_set_search_standard(intp, demod);
ce45264e 1938
a3a4f7e1
IL		 1939 if (intp->srch_algo[demod] != STV0900_BLIND_SEARCH)
1940 stv0900_start_search(intp, demod);
ce45264e
IL		 1941 }
1942
a3a4f7e1
IL		 1943 if (signal_type == STV0900_NOAGC1)
1944 return signal_type;
1945
1946 if (intp->chip_id == 0x12) {
1947 stv0900_write_bits(intp, RST_HWARE, 0);
ce45264e 1948 msleep(3);
a3a4f7e1
IL		 1949 stv0900_write_bits(intp, RST_HWARE, 1);
1950 stv0900_write_bits(intp, RST_HWARE, 0);
ce45264e
IL		 1951 }
1952
1953 if (algo == STV0900_BLIND_SEARCH)
1954 lock = stv0900_blind_search_algo(fe);
1955 else if (algo == STV0900_COLD_START)
1956 lock = stv0900_get_demod_cold_lock(fe, demod_timeout);
1957 else if (algo == STV0900_WARM_START)
a3a4f7e1 1958 lock = stv0900_get_demod_lock(intp, demod, demod_timeout);
ce45264e
IL		 1959
1960 if ((lock == FALSE) && (algo == STV0900_COLD_START)) {
1961 if (low_sr == FALSE) {
a3a4f7e1
IL		 1962 if (stv0900_check_timing_lock(intp, demod) == TRUE)
1963 lock = stv0900_sw_algo(intp, demod);
ce45264e
IL		 1964 }
1965 }
1966
1967 if (lock == TRUE)
1968 signal_type = stv0900_get_signal_params(fe);
1969
1970 if ((lock == TRUE) && (signal_type == STV0900_RANGEOK)) {
1971 stv0900_track_optimization(fe);
a3a4f7e1
IL		 1972 if (intp->chip_id <= 0x11) {
1973 if ((stv0900_get_standard(fe, 0) ==
1974 STV0900_DVBS1_STANDARD) &&
1975 (stv0900_get_standard(fe, 1) ==
1976 STV0900_DVBS1_STANDARD)) {
ce45264e 1977 msleep(20);
a3a4f7e1 1978 stv0900_write_bits(intp, RST_HWARE, 0);
ce45264e 1979 } else {
a3a4f7e1 1980 stv0900_write_bits(intp, RST_HWARE, 0);
ce45264e 1981 msleep(3);
a3a4f7e1
IL		 1982 stv0900_write_bits(intp, RST_HWARE, 1);
1983 stv0900_write_bits(intp, RST_HWARE, 0);
ce45264e 1984 }
a3a4f7e1
IL		 1985
1986 } else if (intp->chip_id >= 0x20) {
1987 stv0900_write_bits(intp, RST_HWARE, 0);
ce45264e 1988 msleep(3);
a3a4f7e1
IL		 1989 stv0900_write_bits(intp, RST_HWARE, 1);
1990 stv0900_write_bits(intp, RST_HWARE, 0);
ce45264e
IL		 1991 }
1992
a3a4f7e1
IL		 1993 if (stv0900_wait_for_lock(intp, demod,
1994 fec_timeout, fec_timeout) == TRUE) {
ce45264e 1995 lock = TRUE;
a3a4f7e1
IL		 1996 intp->result[demod].locked = TRUE;
1997 if (intp->result[demod].standard ==
1998 STV0900_DVBS2_STANDARD) {
1999 stv0900_set_dvbs2_rolloff(intp, demod);
2000 stv0900_write_bits(intp, RESET_UPKO_COUNT, 1);
2001 stv0900_write_bits(intp, RESET_UPKO_COUNT, 0);
2002 stv0900_write_reg(intp, ERRCTRL1, 0x67);
2003 } else {
2004 stv0900_write_reg(intp, ERRCTRL1, 0x75);
ce45264e 2005 }
a3a4f7e1
IL		 2006
2007 stv0900_write_reg(intp, FBERCPT4, 0);
2008 stv0900_write_reg(intp, ERRCTRL2, 0xc1);
ce45264e
IL		 2009 } else {
2010 lock = FALSE;
2011 signal_type = STV0900_NODATA;
a3a4f7e1
IL		 2012 no_signal = stv0900_check_signal_presence(intp, demod);
2013
2014 intp->result[demod].locked = FALSE;
ce45264e
IL		 2015 }
2016 }
2017
a3a4f7e1
IL		 2018 if ((signal_type != STV0900_NODATA) || (no_signal != FALSE))
2019 return signal_type;
ce45264e 2020
a3a4f7e1
IL		 2021 if (intp->chip_id > 0x11) {
2022 intp->result[demod].locked = FALSE;
2023 return signal_type;
ce45264e
IL		 2024 }
2025
a3a4f7e1
IL		 2026 if ((stv0900_get_bits(intp, HEADER_MODE) == STV0900_DVBS_FOUND) &&
2027 (intp->srch_iq_inv[demod] <= STV0900_IQ_AUTO_NORMAL_FIRST))
2028 signal_type = stv0900_dvbs1_acq_workaround(fe);
2029
ce45264e
IL		 2030 return signal_type;
2031}
2032
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