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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. | |
ce45264e IL |
20 | */ |
21 | ||
22 | #include "stv0900.h" | |
23 | #include "stv0900_reg.h" | |
24 | #include "stv0900_priv.h" | |
25 | ||
a3a4f7e1 IL |
26 | s32 shiftx(s32 x, int demod, s32 shift) |
27 | { | |
28 | if (demod == 1) | |
29 | return x - shift; | |
30 | ||
31 | return x; | |
32 | } | |
33 | ||
34 | int stv0900_check_signal_presence(struct stv0900_internal *intp, | |
ce45264e IL |
35 | enum fe_stv0900_demod_num demod) |
36 | { | |
a3a4f7e1 IL |
37 | s32 carr_offset, |
38 | agc2_integr, | |
39 | max_carrier; | |
ce45264e | 40 | |
a3a4f7e1 | 41 | int no_signal = FALSE; |
ce45264e | 42 | |
a3a4f7e1 IL |
43 | carr_offset = (stv0900_read_reg(intp, CFR2) << 8) |
44 | | stv0900_read_reg(intp, CFR1); | |
45 | carr_offset = ge2comp(carr_offset, 16); | |
46 | agc2_integr = (stv0900_read_reg(intp, AGC2I1) << 8) | |
47 | | stv0900_read_reg(intp, AGC2I0); | |
48 | max_carrier = intp->srch_range[demod] / 1000; | |
ce45264e IL |
49 | |
50 | max_carrier += (max_carrier / 10); | |
51 | max_carrier = 65536 * (max_carrier / 2); | |
a3a4f7e1 | 52 | max_carrier /= intp->mclk / 1000; |
ce45264e IL |
53 | if (max_carrier > 0x4000) |
54 | max_carrier = 0x4000; | |
55 | ||
56 | if ((agc2_integr > 0x2000) | |
a3a4f7e1 IL |
57 | || (carr_offset > (2 * max_carrier)) |
58 | || (carr_offset < (-2 * max_carrier))) | |
ce45264e | 59 | no_signal = TRUE; |
ce45264e IL |
60 | |
61 | return no_signal; | |
62 | } | |
63 | ||
a3a4f7e1 | 64 | static void stv0900_get_sw_loop_params(struct stv0900_internal *intp, |
ce45264e IL |
65 | s32 *frequency_inc, s32 *sw_timeout, |
66 | s32 *steps, | |
67 | enum fe_stv0900_demod_num demod) | |
68 | { | |
69 | s32 timeout, freq_inc, max_steps, srate, max_carrier; | |
70 | ||
71 | enum fe_stv0900_search_standard standard; | |
72 | ||
a3a4f7e1 IL |
73 | srate = intp->symbol_rate[demod]; |
74 | max_carrier = intp->srch_range[demod] / 1000; | |
75 | max_carrier += max_carrier / 10; | |
76 | standard = intp->srch_standard[demod]; | |
ce45264e IL |
77 | |
78 | max_carrier = 65536 * (max_carrier / 2); | |
a3a4f7e1 | 79 | max_carrier /= intp->mclk / 1000; |
ce45264e IL |
80 | |
81 | if (max_carrier > 0x4000) | |
82 | max_carrier = 0x4000; | |
83 | ||
84 | freq_inc = srate; | |
a3a4f7e1 | 85 | freq_inc /= intp->mclk >> 10; |
ce45264e IL |
86 | freq_inc = freq_inc << 6; |
87 | ||
88 | switch (standard) { | |
89 | case STV0900_SEARCH_DVBS1: | |
90 | case STV0900_SEARCH_DSS: | |
91 | freq_inc *= 3; | |
92 | timeout = 20; | |
93 | break; | |
94 | case STV0900_SEARCH_DVBS2: | |
95 | freq_inc *= 4; | |
96 | timeout = 25; | |
97 | break; | |
98 | case STV0900_AUTO_SEARCH: | |
99 | default: | |
100 | freq_inc *= 3; | |
101 | timeout = 25; | |
102 | break; | |
103 | } | |
104 | ||
105 | freq_inc /= 100; | |
106 | ||
107 | if ((freq_inc > max_carrier) || (freq_inc < 0)) | |
108 | freq_inc = max_carrier / 2; | |
109 | ||
110 | timeout *= 27500; | |
111 | ||
112 | if (srate > 0) | |
113 | timeout /= srate / 1000; | |
114 | ||
115 | if ((timeout > 100) || (timeout < 0)) | |
116 | timeout = 100; | |
117 | ||
118 | max_steps = (max_carrier / freq_inc) + 1; | |
119 | ||
120 | if ((max_steps > 100) || (max_steps < 0)) { | |
121 | max_steps = 100; | |
122 | freq_inc = max_carrier / max_steps; | |
123 | } | |
124 | ||
125 | *frequency_inc = freq_inc; | |
126 | *sw_timeout = timeout; | |
127 | *steps = max_steps; | |
128 | ||
129 | } | |
130 | ||
a3a4f7e1 | 131 | static int stv0900_search_carr_sw_loop(struct stv0900_internal *intp, |
ce45264e IL |
132 | s32 FreqIncr, s32 Timeout, int zigzag, |
133 | s32 MaxStep, enum fe_stv0900_demod_num demod) | |
134 | { | |
135 | int no_signal, | |
136 | lock = FALSE; | |
137 | s32 stepCpt, | |
138 | freqOffset, | |
139 | max_carrier; | |
140 | ||
a3a4f7e1 IL |
141 | max_carrier = intp->srch_range[demod] / 1000; |
142 | max_carrier += (max_carrier / 10); | |
ce45264e IL |
143 | |
144 | max_carrier = 65536 * (max_carrier / 2); | |
a3a4f7e1 | 145 | max_carrier /= intp->mclk / 1000; |
ce45264e IL |
146 | |
147 | if (max_carrier > 0x4000) | |
148 | max_carrier = 0x4000; | |
149 | ||
150 | if (zigzag == TRUE) | |
151 | freqOffset = 0; | |
152 | else | |
153 | freqOffset = -max_carrier + FreqIncr; | |
154 | ||
155 | stepCpt = 0; | |
156 | ||
157 | do { | |
a3a4f7e1 IL |
158 | stv0900_write_reg(intp, DMDISTATE, 0x1c); |
159 | stv0900_write_reg(intp, CFRINIT1, (freqOffset / 256) & 0xff); | |
160 | stv0900_write_reg(intp, CFRINIT0, freqOffset & 0xff); | |
161 | stv0900_write_reg(intp, DMDISTATE, 0x18); | |
162 | stv0900_write_bits(intp, ALGOSWRST, 1); | |
163 | ||
164 | if (intp->chip_id == 0x12) { | |
165 | stv0900_write_bits(intp, RST_HWARE, 1); | |
166 | stv0900_write_bits(intp, RST_HWARE, 0); | |
ce45264e IL |
167 | } |
168 | ||
169 | if (zigzag == TRUE) { | |
170 | if (freqOffset >= 0) | |
171 | freqOffset = -freqOffset - 2 * FreqIncr; | |
172 | else | |
173 | freqOffset = -freqOffset; | |
174 | } else | |
175 | freqOffset += + 2 * FreqIncr; | |
176 | ||
177 | stepCpt++; | |
a3a4f7e1 IL |
178 | lock = stv0900_get_demod_lock(intp, demod, Timeout); |
179 | no_signal = stv0900_check_signal_presence(intp, demod); | |
ce45264e IL |
180 | |
181 | } while ((lock == FALSE) | |
182 | && (no_signal == FALSE) | |
183 | && ((freqOffset - FreqIncr) < max_carrier) | |
184 | && ((freqOffset + FreqIncr) > -max_carrier) | |
185 | && (stepCpt < MaxStep)); | |
186 | ||
a3a4f7e1 | 187 | stv0900_write_bits(intp, ALGOSWRST, 0); |
ce45264e IL |
188 | |
189 | return lock; | |
190 | } | |
191 | ||
521e86eb | 192 | static int stv0900_sw_algo(struct stv0900_internal *intp, |
ce45264e IL |
193 | enum fe_stv0900_demod_num demod) |
194 | { | |
a3a4f7e1 IL |
195 | int lock = FALSE, |
196 | no_signal, | |
197 | zigzag; | |
198 | s32 s2fw, | |
199 | fqc_inc, | |
200 | sft_stp_tout, | |
201 | trial_cntr, | |
202 | max_steps; | |
203 | ||
204 | stv0900_get_sw_loop_params(intp, &fqc_inc, &sft_stp_tout, | |
ce45264e | 205 | &max_steps, demod); |
a3a4f7e1 IL |
206 | switch (intp->srch_standard[demod]) { |
207 | case STV0900_SEARCH_DVBS1: | |
208 | case STV0900_SEARCH_DSS: | |
209 | if (intp->chip_id >= 0x20) | |
210 | stv0900_write_reg(intp, CARFREQ, 0x3b); | |
211 | else | |
212 | stv0900_write_reg(intp, CARFREQ, 0xef); | |
ce45264e | 213 | |
a3a4f7e1 IL |
214 | stv0900_write_reg(intp, DMDCFGMD, 0x49); |
215 | zigzag = FALSE; | |
216 | break; | |
217 | case STV0900_SEARCH_DVBS2: | |
218 | if (intp->chip_id >= 0x20) | |
219 | stv0900_write_reg(intp, CORRELABS, 0x79); | |
220 | else | |
221 | stv0900_write_reg(intp, CORRELABS, 0x68); | |
ce45264e | 222 | |
a3a4f7e1 | 223 | stv0900_write_reg(intp, DMDCFGMD, 0x89); |
ce45264e | 224 | |
a3a4f7e1 IL |
225 | zigzag = TRUE; |
226 | break; | |
227 | case STV0900_AUTO_SEARCH: | |
228 | default: | |
229 | if (intp->chip_id >= 0x20) { | |
230 | stv0900_write_reg(intp, CARFREQ, 0x3b); | |
231 | stv0900_write_reg(intp, CORRELABS, 0x79); | |
232 | } else { | |
233 | stv0900_write_reg(intp, CARFREQ, 0xef); | |
234 | stv0900_write_reg(intp, CORRELABS, 0x68); | |
ce45264e IL |
235 | } |
236 | ||
a3a4f7e1 IL |
237 | stv0900_write_reg(intp, DMDCFGMD, 0xc9); |
238 | zigzag = FALSE; | |
ce45264e | 239 | break; |
a3a4f7e1 | 240 | } |
ce45264e | 241 | |
a3a4f7e1 IL |
242 | trial_cntr = 0; |
243 | do { | |
244 | lock = stv0900_search_carr_sw_loop(intp, | |
245 | fqc_inc, | |
246 | sft_stp_tout, | |
247 | zigzag, | |
248 | max_steps, | |
249 | demod); | |
250 | no_signal = stv0900_check_signal_presence(intp, demod); | |
251 | trial_cntr++; | |
252 | if ((lock == TRUE) | |
253 | || (no_signal == TRUE) | |
254 | || (trial_cntr == 2)) { | |
255 | ||
256 | if (intp->chip_id >= 0x20) { | |
257 | stv0900_write_reg(intp, CARFREQ, 0x49); | |
258 | stv0900_write_reg(intp, CORRELABS, 0x9e); | |
ce45264e | 259 | } else { |
a3a4f7e1 IL |
260 | stv0900_write_reg(intp, CARFREQ, 0xed); |
261 | stv0900_write_reg(intp, CORRELABS, 0x88); | |
ce45264e IL |
262 | } |
263 | ||
a3a4f7e1 IL |
264 | if ((stv0900_get_bits(intp, HEADER_MODE) == |
265 | STV0900_DVBS2_FOUND) && | |
266 | (lock == TRUE)) { | |
267 | msleep(sft_stp_tout); | |
268 | s2fw = stv0900_get_bits(intp, FLYWHEEL_CPT); | |
ce45264e | 269 | |
a3a4f7e1 IL |
270 | if (s2fw < 0xd) { |
271 | msleep(sft_stp_tout); | |
272 | s2fw = stv0900_get_bits(intp, | |
273 | FLYWHEEL_CPT); | |
ce45264e IL |
274 | } |
275 | ||
a3a4f7e1 IL |
276 | if (s2fw < 0xd) { |
277 | lock = FALSE; | |
ce45264e | 278 | |
a3a4f7e1 IL |
279 | if (trial_cntr < 2) { |
280 | if (intp->chip_id >= 0x20) | |
281 | stv0900_write_reg(intp, | |
282 | CORRELABS, | |
283 | 0x79); | |
284 | else | |
285 | stv0900_write_reg(intp, | |
286 | CORRELABS, | |
287 | 0x68); | |
ce45264e | 288 | |
a3a4f7e1 IL |
289 | stv0900_write_reg(intp, |
290 | DMDCFGMD, | |
291 | 0x89); | |
ce45264e IL |
292 | } |
293 | } | |
294 | } | |
a3a4f7e1 | 295 | } |
ce45264e | 296 | |
a3a4f7e1 IL |
297 | } while ((lock == FALSE) |
298 | && (trial_cntr < 2) | |
299 | && (no_signal == FALSE)); | |
ce45264e IL |
300 | |
301 | return lock; | |
302 | } | |
303 | ||
a3a4f7e1 | 304 | static u32 stv0900_get_symbol_rate(struct stv0900_internal *intp, |
ce45264e IL |
305 | u32 mclk, |
306 | enum fe_stv0900_demod_num demod) | |
307 | { | |
a3a4f7e1 IL |
308 | s32 rem1, rem2, intval1, intval2, srate; |
309 | ||
310 | srate = (stv0900_get_bits(intp, SYMB_FREQ3) << 24) + | |
311 | (stv0900_get_bits(intp, SYMB_FREQ2) << 16) + | |
312 | (stv0900_get_bits(intp, SYMB_FREQ1) << 8) + | |
313 | (stv0900_get_bits(intp, SYMB_FREQ0)); | |
ce45264e | 314 | dprintk("lock: srate=%d r0=0x%x r1=0x%x r2=0x%x r3=0x%x \n", |
a3a4f7e1 IL |
315 | srate, stv0900_get_bits(intp, SYMB_FREQ0), |
316 | stv0900_get_bits(intp, SYMB_FREQ1), | |
317 | stv0900_get_bits(intp, SYMB_FREQ2), | |
318 | stv0900_get_bits(intp, SYMB_FREQ3)); | |
ce45264e IL |
319 | |
320 | intval1 = (mclk) >> 16; | |
321 | intval2 = (srate) >> 16; | |
322 | ||
323 | rem1 = (mclk) % 0x10000; | |
324 | rem2 = (srate) % 0x10000; | |
325 | srate = (intval1 * intval2) + | |
326 | ((intval1 * rem2) >> 16) + | |
327 | ((intval2 * rem1) >> 16); | |
328 | ||
329 | return srate; | |
330 | } | |
331 | ||
a3a4f7e1 | 332 | static void stv0900_set_symbol_rate(struct stv0900_internal *intp, |
ce45264e IL |
333 | u32 mclk, u32 srate, |
334 | enum fe_stv0900_demod_num demod) | |
335 | { | |
ce45264e IL |
336 | u32 symb; |
337 | ||
8171c205 | 338 | dprintk("%s: Mclk %d, SR %d, Dmd %d\n", __func__, mclk, |
ce45264e IL |
339 | srate, demod); |
340 | ||
ce45264e IL |
341 | if (srate > 60000000) { |
342 | symb = srate << 4; | |
343 | symb /= (mclk >> 12); | |
344 | } else if (srate > 6000000) { | |
345 | symb = srate << 6; | |
346 | symb /= (mclk >> 10); | |
347 | } else { | |
348 | symb = srate << 9; | |
349 | symb /= (mclk >> 7); | |
350 | } | |
351 | ||
a3a4f7e1 IL |
352 | stv0900_write_reg(intp, SFRINIT1, (symb >> 8) & 0x7f); |
353 | stv0900_write_reg(intp, SFRINIT1 + 1, (symb & 0xff)); | |
ce45264e IL |
354 | } |
355 | ||
a3a4f7e1 | 356 | static void stv0900_set_max_symbol_rate(struct stv0900_internal *intp, |
ce45264e IL |
357 | u32 mclk, u32 srate, |
358 | enum fe_stv0900_demod_num demod) | |
359 | { | |
ce45264e IL |
360 | u32 symb; |
361 | ||
ce45264e IL |
362 | srate = 105 * (srate / 100); |
363 | ||
364 | if (srate > 60000000) { | |
365 | symb = srate << 4; | |
366 | symb /= (mclk >> 12); | |
367 | } else if (srate > 6000000) { | |
368 | symb = srate << 6; | |
369 | symb /= (mclk >> 10); | |
370 | } else { | |
371 | symb = srate << 9; | |
372 | symb /= (mclk >> 7); | |
373 | } | |
374 | ||
375 | if (symb < 0x7fff) { | |
a3a4f7e1 IL |
376 | stv0900_write_reg(intp, SFRUP1, (symb >> 8) & 0x7f); |
377 | stv0900_write_reg(intp, SFRUP1 + 1, (symb & 0xff)); | |
ce45264e | 378 | } else { |
a3a4f7e1 IL |
379 | stv0900_write_reg(intp, SFRUP1, 0x7f); |
380 | stv0900_write_reg(intp, SFRUP1 + 1, 0xff); | |
ce45264e IL |
381 | } |
382 | } | |
383 | ||
a3a4f7e1 | 384 | static void stv0900_set_min_symbol_rate(struct stv0900_internal *intp, |
ce45264e IL |
385 | u32 mclk, u32 srate, |
386 | enum fe_stv0900_demod_num demod) | |
387 | { | |
ce45264e IL |
388 | u32 symb; |
389 | ||
ce45264e IL |
390 | srate = 95 * (srate / 100); |
391 | if (srate > 60000000) { | |
392 | symb = srate << 4; | |
393 | symb /= (mclk >> 12); | |
394 | ||
395 | } else if (srate > 6000000) { | |
396 | symb = srate << 6; | |
397 | symb /= (mclk >> 10); | |
398 | ||
399 | } else { | |
400 | symb = srate << 9; | |
401 | symb /= (mclk >> 7); | |
402 | } | |
403 | ||
a3a4f7e1 IL |
404 | stv0900_write_reg(intp, SFRLOW1, (symb >> 8) & 0xff); |
405 | stv0900_write_reg(intp, SFRLOW1 + 1, (symb & 0xff)); | |
ce45264e IL |
406 | } |
407 | ||
a3a4f7e1 | 408 | static s32 stv0900_get_timing_offst(struct stv0900_internal *intp, |
ce45264e IL |
409 | u32 srate, |
410 | enum fe_stv0900_demod_num demod) | |
411 | { | |
a3a4f7e1 | 412 | s32 timingoffset; |
ce45264e | 413 | |
ce45264e | 414 | |
a3a4f7e1 IL |
415 | timingoffset = (stv0900_read_reg(intp, TMGREG2) << 16) + |
416 | (stv0900_read_reg(intp, TMGREG2 + 1) << 8) + | |
417 | (stv0900_read_reg(intp, TMGREG2 + 2)); | |
ce45264e IL |
418 | |
419 | timingoffset = ge2comp(timingoffset, 24); | |
420 | ||
421 | ||
422 | if (timingoffset == 0) | |
423 | timingoffset = 1; | |
424 | ||
425 | timingoffset = ((s32)srate * 10) / ((s32)0x1000000 / timingoffset); | |
426 | timingoffset /= 320; | |
427 | ||
428 | return timingoffset; | |
429 | } | |
430 | ||
a3a4f7e1 | 431 | static void stv0900_set_dvbs2_rolloff(struct stv0900_internal *intp, |
ce45264e IL |
432 | enum fe_stv0900_demod_num demod) |
433 | { | |
a3a4f7e1 IL |
434 | s32 rolloff; |
435 | ||
436 | if (intp->chip_id == 0x10) { | |
437 | stv0900_write_bits(intp, MANUALSX_ROLLOFF, 1); | |
438 | rolloff = stv0900_read_reg(intp, MATSTR1) & 0x03; | |
439 | stv0900_write_bits(intp, ROLLOFF_CONTROL, rolloff); | |
440 | } else if (intp->chip_id <= 0x20) | |
441 | stv0900_write_bits(intp, MANUALSX_ROLLOFF, 0); | |
442 | else /* cut 3.0 */ | |
443 | stv0900_write_bits(intp, MANUALS2_ROLLOFF, 0); | |
ce45264e IL |
444 | } |
445 | ||
446 | static u32 stv0900_carrier_width(u32 srate, enum fe_stv0900_rolloff ro) | |
447 | { | |
448 | u32 rolloff; | |
449 | ||
450 | switch (ro) { | |
451 | case STV0900_20: | |
452 | rolloff = 20; | |
453 | break; | |
454 | case STV0900_25: | |
455 | rolloff = 25; | |
456 | break; | |
457 | case STV0900_35: | |
458 | default: | |
459 | rolloff = 35; | |
460 | break; | |
461 | } | |
462 | ||
463 | return srate + (srate * rolloff) / 100; | |
464 | } | |
465 | ||
a3a4f7e1 | 466 | static int stv0900_check_timing_lock(struct stv0900_internal *intp, |
ce45264e IL |
467 | enum fe_stv0900_demod_num demod) |
468 | { | |
469 | int timingLock = FALSE; | |
a3a4f7e1 IL |
470 | s32 i, |
471 | timingcpt = 0; | |
472 | u8 car_freq, | |
473 | tmg_th_high, | |
474 | tmg_th_low; | |
475 | ||
476 | car_freq = stv0900_read_reg(intp, CARFREQ); | |
477 | tmg_th_high = stv0900_read_reg(intp, TMGTHRISE); | |
478 | tmg_th_low = stv0900_read_reg(intp, TMGTHFALL); | |
479 | stv0900_write_reg(intp, TMGTHRISE, 0x20); | |
480 | stv0900_write_reg(intp, TMGTHFALL, 0x0); | |
481 | stv0900_write_bits(intp, CFR_AUTOSCAN, 0); | |
482 | stv0900_write_reg(intp, RTC, 0x80); | |
483 | stv0900_write_reg(intp, RTCS2, 0x40); | |
484 | stv0900_write_reg(intp, CARFREQ, 0x0); | |
485 | stv0900_write_reg(intp, CFRINIT1, 0x0); | |
486 | stv0900_write_reg(intp, CFRINIT0, 0x0); | |
487 | stv0900_write_reg(intp, AGC2REF, 0x65); | |
488 | stv0900_write_reg(intp, DMDISTATE, 0x18); | |
489 | msleep(7); | |
490 | ||
491 | for (i = 0; i < 10; i++) { | |
492 | if (stv0900_get_bits(intp, TMGLOCK_QUALITY) >= 2) | |
493 | timingcpt++; | |
494 | ||
495 | msleep(1); | |
496 | } | |
ce45264e | 497 | |
a3a4f7e1 IL |
498 | if (timingcpt >= 3) |
499 | timingLock = TRUE; | |
ce45264e | 500 | |
a3a4f7e1 IL |
501 | stv0900_write_reg(intp, AGC2REF, 0x38); |
502 | stv0900_write_reg(intp, RTC, 0x88); | |
503 | stv0900_write_reg(intp, RTCS2, 0x68); | |
504 | stv0900_write_reg(intp, CARFREQ, car_freq); | |
505 | stv0900_write_reg(intp, TMGTHRISE, tmg_th_high); | |
506 | stv0900_write_reg(intp, TMGTHFALL, tmg_th_low); | |
ce45264e IL |
507 | |
508 | return timingLock; | |
509 | } | |
510 | ||
511 | static int stv0900_get_demod_cold_lock(struct dvb_frontend *fe, | |
512 | s32 demod_timeout) | |
513 | { | |
514 | struct stv0900_state *state = fe->demodulator_priv; | |
a3a4f7e1 | 515 | struct stv0900_internal *intp = state->internal; |
ce45264e | 516 | enum fe_stv0900_demod_num demod = state->demod; |
a3a4f7e1 IL |
517 | int lock = FALSE, |
518 | d = demod; | |
519 | s32 srate, | |
520 | search_range, | |
521 | locktimeout, | |
522 | currier_step, | |
523 | nb_steps, | |
524 | current_step, | |
525 | direction, | |
526 | tuner_freq, | |
527 | timeout, | |
528 | freq; | |
ce45264e | 529 | |
a3a4f7e1 IL |
530 | srate = intp->symbol_rate[d]; |
531 | search_range = intp->srch_range[d]; | |
ce45264e IL |
532 | |
533 | if (srate >= 10000000) | |
534 | locktimeout = demod_timeout / 3; | |
535 | else | |
536 | locktimeout = demod_timeout / 2; | |
537 | ||
a3a4f7e1 | 538 | lock = stv0900_get_demod_lock(intp, d, locktimeout); |
ce45264e | 539 | |
a3a4f7e1 IL |
540 | if (lock != FALSE) |
541 | return lock; | |
542 | ||
543 | if (srate >= 10000000) { | |
544 | if (stv0900_check_timing_lock(intp, d) == TRUE) { | |
545 | stv0900_write_reg(intp, DMDISTATE, 0x1f); | |
546 | stv0900_write_reg(intp, DMDISTATE, 0x15); | |
547 | lock = stv0900_get_demod_lock(intp, d, demod_timeout); | |
548 | } else | |
549 | lock = FALSE; | |
550 | ||
551 | return lock; | |
552 | } | |
553 | ||
554 | if (intp->chip_id <= 0x20) { | |
555 | if (srate <= 1000000) | |
556 | currier_step = 500; | |
557 | else if (srate <= 4000000) | |
558 | currier_step = 1000; | |
559 | else if (srate <= 7000000) | |
560 | currier_step = 2000; | |
561 | else if (srate <= 10000000) | |
562 | currier_step = 3000; | |
563 | else | |
564 | currier_step = 5000; | |
565 | ||
566 | if (srate >= 2000000) { | |
ce45264e IL |
567 | timeout = (demod_timeout / 3); |
568 | if (timeout > 1000) | |
569 | timeout = 1000; | |
a3a4f7e1 IL |
570 | } else |
571 | timeout = (demod_timeout / 2); | |
572 | } else { | |
573 | /*cut 3.0 */ | |
574 | currier_step = srate / 4000; | |
575 | timeout = (demod_timeout * 3) / 4; | |
576 | } | |
ce45264e | 577 | |
a3a4f7e1 | 578 | nb_steps = ((search_range / 1000) / currier_step); |
ce45264e | 579 | |
a3a4f7e1 IL |
580 | if ((nb_steps % 2) != 0) |
581 | nb_steps += 1; | |
ce45264e | 582 | |
a3a4f7e1 IL |
583 | if (nb_steps <= 0) |
584 | nb_steps = 2; | |
585 | else if (nb_steps > 12) | |
586 | nb_steps = 12; | |
ce45264e | 587 | |
a3a4f7e1 IL |
588 | current_step = 1; |
589 | direction = 1; | |
ce45264e | 590 | |
a3a4f7e1 IL |
591 | if (intp->chip_id <= 0x20) { |
592 | tuner_freq = intp->freq[d]; | |
593 | intp->bw[d] = stv0900_carrier_width(intp->symbol_rate[d], | |
594 | intp->rolloff) + intp->symbol_rate[d]; | |
595 | } else | |
596 | tuner_freq = 0; | |
597 | ||
598 | while ((current_step <= nb_steps) && (lock == FALSE)) { | |
599 | if (direction > 0) | |
600 | tuner_freq += (current_step * currier_step); | |
601 | else | |
602 | tuner_freq -= (current_step * currier_step); | |
603 | ||
604 | if (intp->chip_id <= 0x20) { | |
cd79d33e IL |
605 | if (intp->tuner_type[d] == 3) |
606 | stv0900_set_tuner_auto(intp, tuner_freq, | |
607 | intp->bw[d], demod); | |
608 | else | |
609 | stv0900_set_tuner(fe, tuner_freq, intp->bw[d]); | |
610 | ||
a3a4f7e1 IL |
611 | stv0900_write_reg(intp, DMDISTATE, 0x1c); |
612 | stv0900_write_reg(intp, CFRINIT1, 0); | |
613 | stv0900_write_reg(intp, CFRINIT0, 0); | |
614 | stv0900_write_reg(intp, DMDISTATE, 0x1f); | |
615 | stv0900_write_reg(intp, DMDISTATE, 0x15); | |
616 | } else { | |
617 | stv0900_write_reg(intp, DMDISTATE, 0x1c); | |
618 | freq = (tuner_freq * 65536) / (intp->mclk / 1000); | |
619 | stv0900_write_bits(intp, CFR_INIT1, MSB(freq)); | |
620 | stv0900_write_bits(intp, CFR_INIT0, LSB(freq)); | |
621 | stv0900_write_reg(intp, DMDISTATE, 0x1f); | |
622 | stv0900_write_reg(intp, DMDISTATE, 0x05); | |
ce45264e | 623 | } |
a3a4f7e1 IL |
624 | |
625 | lock = stv0900_get_demod_lock(intp, d, timeout); | |
626 | direction *= -1; | |
627 | current_step++; | |
ce45264e IL |
628 | } |
629 | ||
630 | return lock; | |
631 | } | |
632 | ||
633 | static void stv0900_get_lock_timeout(s32 *demod_timeout, s32 *fec_timeout, | |
634 | s32 srate, | |
635 | enum fe_stv0900_search_algo algo) | |
636 | { | |
637 | switch (algo) { | |
638 | case STV0900_BLIND_SEARCH: | |
639 | if (srate <= 1500000) { | |
640 | (*demod_timeout) = 1500; | |
641 | (*fec_timeout) = 400; | |
642 | } else if (srate <= 5000000) { | |
643 | (*demod_timeout) = 1000; | |
644 | (*fec_timeout) = 300; | |
645 | } else { | |
646 | (*demod_timeout) = 700; | |
647 | (*fec_timeout) = 100; | |
648 | } | |
649 | ||
650 | break; | |
651 | case STV0900_COLD_START: | |
652 | case STV0900_WARM_START: | |
653 | default: | |
654 | if (srate <= 1000000) { | |
655 | (*demod_timeout) = 3000; | |
656 | (*fec_timeout) = 1700; | |
657 | } else if (srate <= 2000000) { | |
658 | (*demod_timeout) = 2500; | |
659 | (*fec_timeout) = 1100; | |
660 | } else if (srate <= 5000000) { | |
661 | (*demod_timeout) = 1000; | |
662 | (*fec_timeout) = 550; | |
663 | } else if (srate <= 10000000) { | |
664 | (*demod_timeout) = 700; | |
665 | (*fec_timeout) = 250; | |
666 | } else if (srate <= 20000000) { | |
667 | (*demod_timeout) = 400; | |
668 | (*fec_timeout) = 130; | |
a3a4f7e1 | 669 | } else { |
ce45264e IL |
670 | (*demod_timeout) = 300; |
671 | (*fec_timeout) = 100; | |
672 | } | |
673 | ||
674 | break; | |
675 | ||
676 | } | |
677 | ||
678 | if (algo == STV0900_WARM_START) | |
679 | (*demod_timeout) /= 2; | |
680 | } | |
681 | ||
a3a4f7e1 | 682 | static void stv0900_set_viterbi_tracq(struct stv0900_internal *intp, |
ce45264e IL |
683 | enum fe_stv0900_demod_num demod) |
684 | { | |
685 | ||
a3a4f7e1 | 686 | s32 vth_reg = VTH12; |
ce45264e | 687 | |
8171c205 | 688 | dprintk("%s\n", __func__); |
ce45264e | 689 | |
a3a4f7e1 IL |
690 | stv0900_write_reg(intp, vth_reg++, 0xd0); |
691 | stv0900_write_reg(intp, vth_reg++, 0x7d); | |
692 | stv0900_write_reg(intp, vth_reg++, 0x53); | |
693 | stv0900_write_reg(intp, vth_reg++, 0x2f); | |
694 | stv0900_write_reg(intp, vth_reg++, 0x24); | |
695 | stv0900_write_reg(intp, vth_reg++, 0x1f); | |
ce45264e IL |
696 | } |
697 | ||
a3a4f7e1 IL |
698 | static void stv0900_set_viterbi_standard(struct stv0900_internal *intp, |
699 | enum fe_stv0900_search_standard standard, | |
700 | enum fe_stv0900_fec fec, | |
ce45264e IL |
701 | enum fe_stv0900_demod_num demod) |
702 | { | |
8171c205 | 703 | dprintk("%s: ViterbiStandard = ", __func__); |
ce45264e | 704 | |
a3a4f7e1 | 705 | switch (standard) { |
ce45264e IL |
706 | case STV0900_AUTO_SEARCH: |
707 | dprintk("Auto\n"); | |
a3a4f7e1 IL |
708 | stv0900_write_reg(intp, FECM, 0x10); |
709 | stv0900_write_reg(intp, PRVIT, 0x3f); | |
ce45264e IL |
710 | break; |
711 | case STV0900_SEARCH_DVBS1: | |
712 | dprintk("DVBS1\n"); | |
a3a4f7e1 IL |
713 | stv0900_write_reg(intp, FECM, 0x00); |
714 | switch (fec) { | |
ce45264e IL |
715 | case STV0900_FEC_UNKNOWN: |
716 | default: | |
a3a4f7e1 | 717 | stv0900_write_reg(intp, PRVIT, 0x2f); |
ce45264e IL |
718 | break; |
719 | case STV0900_FEC_1_2: | |
a3a4f7e1 | 720 | stv0900_write_reg(intp, PRVIT, 0x01); |
ce45264e IL |
721 | break; |
722 | case STV0900_FEC_2_3: | |
a3a4f7e1 | 723 | stv0900_write_reg(intp, PRVIT, 0x02); |
ce45264e IL |
724 | break; |
725 | case STV0900_FEC_3_4: | |
a3a4f7e1 | 726 | stv0900_write_reg(intp, PRVIT, 0x04); |
ce45264e IL |
727 | break; |
728 | case STV0900_FEC_5_6: | |
a3a4f7e1 | 729 | stv0900_write_reg(intp, PRVIT, 0x08); |
ce45264e IL |
730 | break; |
731 | case STV0900_FEC_7_8: | |
a3a4f7e1 | 732 | stv0900_write_reg(intp, PRVIT, 0x20); |
ce45264e IL |
733 | break; |
734 | } | |
735 | ||
736 | break; | |
737 | case STV0900_SEARCH_DSS: | |
738 | dprintk("DSS\n"); | |
a3a4f7e1 IL |
739 | stv0900_write_reg(intp, FECM, 0x80); |
740 | switch (fec) { | |
ce45264e IL |
741 | case STV0900_FEC_UNKNOWN: |
742 | default: | |
a3a4f7e1 | 743 | stv0900_write_reg(intp, PRVIT, 0x13); |
ce45264e IL |
744 | break; |
745 | case STV0900_FEC_1_2: | |
a3a4f7e1 | 746 | stv0900_write_reg(intp, PRVIT, 0x01); |
ce45264e IL |
747 | break; |
748 | case STV0900_FEC_2_3: | |
a3a4f7e1 | 749 | stv0900_write_reg(intp, PRVIT, 0x02); |
ce45264e IL |
750 | break; |
751 | case STV0900_FEC_6_7: | |
a3a4f7e1 | 752 | stv0900_write_reg(intp, PRVIT, 0x10); |
ce45264e IL |
753 | break; |
754 | } | |
755 | break; | |
756 | default: | |
757 | break; | |
758 | } | |
759 | } | |
760 | ||
a3a4f7e1 IL |
761 | static enum fe_stv0900_fec stv0900_get_vit_fec(struct stv0900_internal *intp, |
762 | enum fe_stv0900_demod_num demod) | |
763 | { | |
764 | enum fe_stv0900_fec prate; | |
765 | s32 rate_fld = stv0900_get_bits(intp, VIT_CURPUN); | |
766 | ||
767 | switch (rate_fld) { | |
768 | case 13: | |
769 | prate = STV0900_FEC_1_2; | |
770 | break; | |
771 | case 18: | |
772 | prate = STV0900_FEC_2_3; | |
773 | break; | |
774 | case 21: | |
775 | prate = STV0900_FEC_3_4; | |
776 | break; | |
777 | case 24: | |
778 | prate = STV0900_FEC_5_6; | |
779 | break; | |
780 | case 25: | |
781 | prate = STV0900_FEC_6_7; | |
782 | break; | |
783 | case 26: | |
784 | prate = STV0900_FEC_7_8; | |
785 | break; | |
786 | default: | |
787 | prate = STV0900_FEC_UNKNOWN; | |
788 | break; | |
789 | } | |
790 | ||
791 | return prate; | |
792 | } | |
793 | ||
521e86eb | 794 | static void stv0900_set_dvbs1_track_car_loop(struct stv0900_internal *intp, |
a3a4f7e1 IL |
795 | enum fe_stv0900_demod_num demod, |
796 | u32 srate) | |
797 | { | |
798 | if (intp->chip_id >= 0x30) { | |
799 | if (srate >= 15000000) { | |
800 | stv0900_write_reg(intp, ACLC, 0x2b); | |
801 | stv0900_write_reg(intp, BCLC, 0x1a); | |
802 | } else if ((srate >= 7000000) && (15000000 > srate)) { | |
803 | stv0900_write_reg(intp, ACLC, 0x0c); | |
804 | stv0900_write_reg(intp, BCLC, 0x1b); | |
805 | } else if (srate < 7000000) { | |
806 | stv0900_write_reg(intp, ACLC, 0x2c); | |
807 | stv0900_write_reg(intp, BCLC, 0x1c); | |
808 | } | |
809 | ||
810 | } else { /*cut 2.0 and 1.x*/ | |
811 | stv0900_write_reg(intp, ACLC, 0x1a); | |
812 | stv0900_write_reg(intp, BCLC, 0x09); | |
813 | } | |
814 | ||
815 | } | |
816 | ||
ce45264e IL |
817 | static void stv0900_track_optimization(struct dvb_frontend *fe) |
818 | { | |
819 | struct stv0900_state *state = fe->demodulator_priv; | |
a3a4f7e1 | 820 | struct stv0900_internal *intp = state->internal; |
ce45264e IL |
821 | enum fe_stv0900_demod_num demod = state->demod; |
822 | ||
a3a4f7e1 IL |
823 | s32 srate, |
824 | pilots, | |
825 | aclc, | |
826 | freq1, | |
827 | freq0, | |
828 | i = 0, | |
829 | timed, | |
830 | timef, | |
831 | blind_tun_sw = 0, | |
832 | modulation; | |
ce45264e | 833 | |
ce45264e IL |
834 | enum fe_stv0900_modcode foundModcod; |
835 | ||
8171c205 | 836 | dprintk("%s\n", __func__); |
ce45264e | 837 | |
a3a4f7e1 IL |
838 | srate = stv0900_get_symbol_rate(intp, intp->mclk, demod); |
839 | srate += stv0900_get_timing_offst(intp, srate, demod); | |
ce45264e | 840 | |
a3a4f7e1 IL |
841 | switch (intp->result[demod].standard) { |
842 | case STV0900_DVBS1_STANDARD: | |
843 | case STV0900_DSS_STANDARD: | |
844 | dprintk("%s: found DVB-S or DSS\n", __func__); | |
845 | if (intp->srch_standard[demod] == STV0900_AUTO_SEARCH) { | |
846 | stv0900_write_bits(intp, DVBS1_ENABLE, 1); | |
847 | stv0900_write_bits(intp, DVBS2_ENABLE, 0); | |
848 | } | |
ce45264e | 849 | |
a3a4f7e1 IL |
850 | stv0900_write_bits(intp, ROLLOFF_CONTROL, intp->rolloff); |
851 | stv0900_write_bits(intp, MANUALSX_ROLLOFF, 1); | |
ce45264e | 852 | |
a3a4f7e1 IL |
853 | if (intp->chip_id < 0x30) { |
854 | stv0900_write_reg(intp, ERRCTRL1, 0x75); | |
ce45264e | 855 | break; |
a3a4f7e1 | 856 | } |
ce45264e | 857 | |
a3a4f7e1 IL |
858 | if (stv0900_get_vit_fec(intp, demod) == STV0900_FEC_1_2) { |
859 | stv0900_write_reg(intp, GAUSSR0, 0x98); | |
860 | stv0900_write_reg(intp, CCIR0, 0x18); | |
861 | } else { | |
862 | stv0900_write_reg(intp, GAUSSR0, 0x18); | |
863 | stv0900_write_reg(intp, CCIR0, 0x18); | |
864 | } | |
ce45264e | 865 | |
a3a4f7e1 IL |
866 | stv0900_write_reg(intp, ERRCTRL1, 0x75); |
867 | break; | |
868 | case STV0900_DVBS2_STANDARD: | |
869 | dprintk("%s: found DVB-S2\n", __func__); | |
870 | stv0900_write_bits(intp, DVBS1_ENABLE, 0); | |
871 | stv0900_write_bits(intp, DVBS2_ENABLE, 1); | |
872 | stv0900_write_reg(intp, ACLC, 0); | |
873 | stv0900_write_reg(intp, BCLC, 0); | |
874 | if (intp->result[demod].frame_len == STV0900_LONG_FRAME) { | |
875 | foundModcod = stv0900_get_bits(intp, DEMOD_MODCOD); | |
876 | pilots = stv0900_get_bits(intp, DEMOD_TYPE) & 0x01; | |
877 | aclc = stv0900_get_optim_carr_loop(srate, | |
878 | foundModcod, | |
879 | pilots, | |
880 | intp->chip_id); | |
881 | if (foundModcod <= STV0900_QPSK_910) | |
882 | stv0900_write_reg(intp, ACLC2S2Q, aclc); | |
883 | else if (foundModcod <= STV0900_8PSK_910) { | |
884 | stv0900_write_reg(intp, ACLC2S2Q, 0x2a); | |
885 | stv0900_write_reg(intp, ACLC2S28, aclc); | |
ce45264e IL |
886 | } |
887 | ||
a3a4f7e1 IL |
888 | if ((intp->demod_mode == STV0900_SINGLE) && |
889 | (foundModcod > STV0900_8PSK_910)) { | |
890 | if (foundModcod <= STV0900_16APSK_910) { | |
891 | stv0900_write_reg(intp, ACLC2S2Q, 0x2a); | |
892 | stv0900_write_reg(intp, ACLC2S216A, | |
893 | aclc); | |
894 | } else if (foundModcod <= STV0900_32APSK_910) { | |
895 | stv0900_write_reg(intp, ACLC2S2Q, 0x2a); | |
896 | stv0900_write_reg(intp, ACLC2S232A, | |
897 | aclc); | |
898 | } | |
899 | } | |
ce45264e | 900 | |
a3a4f7e1 IL |
901 | } else { |
902 | modulation = intp->result[demod].modulation; | |
903 | aclc = stv0900_get_optim_short_carr_loop(srate, | |
904 | modulation, intp->chip_id); | |
905 | if (modulation == STV0900_QPSK) | |
906 | stv0900_write_reg(intp, ACLC2S2Q, aclc); | |
907 | else if (modulation == STV0900_8PSK) { | |
908 | stv0900_write_reg(intp, ACLC2S2Q, 0x2a); | |
909 | stv0900_write_reg(intp, ACLC2S28, aclc); | |
910 | } else if (modulation == STV0900_16APSK) { | |
911 | stv0900_write_reg(intp, ACLC2S2Q, 0x2a); | |
912 | stv0900_write_reg(intp, ACLC2S216A, aclc); | |
913 | } else if (modulation == STV0900_32APSK) { | |
914 | stv0900_write_reg(intp, ACLC2S2Q, 0x2a); | |
915 | stv0900_write_reg(intp, ACLC2S232A, aclc); | |
ce45264e IL |
916 | } |
917 | ||
ce45264e IL |
918 | } |
919 | ||
a3a4f7e1 IL |
920 | if (intp->chip_id <= 0x11) { |
921 | if (intp->demod_mode != STV0900_SINGLE) | |
922 | stv0900_activate_s2_modcod(intp, demod); | |
ce45264e | 923 | |
ce45264e IL |
924 | } |
925 | ||
a3a4f7e1 IL |
926 | stv0900_write_reg(intp, ERRCTRL1, 0x67); |
927 | break; | |
928 | case STV0900_UNKNOWN_STANDARD: | |
929 | default: | |
930 | dprintk("%s: found unknown standard\n", __func__); | |
931 | stv0900_write_bits(intp, DVBS1_ENABLE, 1); | |
932 | stv0900_write_bits(intp, DVBS2_ENABLE, 1); | |
933 | break; | |
934 | } | |
ce45264e | 935 | |
a3a4f7e1 IL |
936 | freq1 = stv0900_read_reg(intp, CFR2); |
937 | freq0 = stv0900_read_reg(intp, CFR1); | |
a3a4f7e1 IL |
938 | if (intp->srch_algo[demod] == STV0900_BLIND_SEARCH) { |
939 | stv0900_write_reg(intp, SFRSTEP, 0x00); | |
940 | stv0900_write_bits(intp, SCAN_ENABLE, 0); | |
941 | stv0900_write_bits(intp, CFR_AUTOSCAN, 0); | |
942 | stv0900_write_reg(intp, TMGCFG2, 0xc1); | |
943 | stv0900_set_symbol_rate(intp, intp->mclk, srate, demod); | |
944 | blind_tun_sw = 1; | |
945 | if (intp->result[demod].standard != STV0900_DVBS2_STANDARD) | |
946 | stv0900_set_dvbs1_track_car_loop(intp, demod, srate); | |
ce45264e | 947 | |
a3a4f7e1 | 948 | } |
ce45264e | 949 | |
a3a4f7e1 IL |
950 | if (intp->chip_id >= 0x20) { |
951 | if ((intp->srch_standard[demod] == STV0900_SEARCH_DVBS1) || | |
952 | (intp->srch_standard[demod] == | |
953 | STV0900_SEARCH_DSS) || | |
954 | (intp->srch_standard[demod] == | |
955 | STV0900_AUTO_SEARCH)) { | |
956 | stv0900_write_reg(intp, VAVSRVIT, 0x0a); | |
957 | stv0900_write_reg(intp, VITSCALE, 0x0); | |
958 | } | |
959 | } | |
ce45264e | 960 | |
a3a4f7e1 IL |
961 | if (intp->chip_id < 0x20) |
962 | stv0900_write_reg(intp, CARHDR, 0x08); | |
ce45264e | 963 | |
a3a4f7e1 IL |
964 | if (intp->chip_id == 0x10) |
965 | stv0900_write_reg(intp, CORRELEXP, 0x0a); | |
ce45264e | 966 | |
a3a4f7e1 | 967 | stv0900_write_reg(intp, AGC2REF, 0x38); |
ce45264e | 968 | |
a3a4f7e1 IL |
969 | if ((intp->chip_id >= 0x20) || |
970 | (blind_tun_sw == 1) || | |
971 | (intp->symbol_rate[demod] < 10000000)) { | |
972 | stv0900_write_reg(intp, CFRINIT1, freq1); | |
973 | stv0900_write_reg(intp, CFRINIT0, freq0); | |
974 | intp->bw[demod] = stv0900_carrier_width(srate, | |
975 | intp->rolloff) + 10000000; | |
ce45264e | 976 | |
a3a4f7e1 | 977 | if ((intp->chip_id >= 0x20) || (blind_tun_sw == 1)) { |
cd79d33e IL |
978 | if (intp->srch_algo[demod] != STV0900_WARM_START) { |
979 | if (intp->tuner_type[demod] == 3) | |
980 | stv0900_set_tuner_auto(intp, | |
981 | intp->freq[demod], | |
982 | intp->bw[demod], | |
983 | demod); | |
984 | else | |
985 | stv0900_set_bandwidth(fe, | |
986 | intp->bw[demod]); | |
987 | } | |
a3a4f7e1 | 988 | } |
ce45264e | 989 | |
a3a4f7e1 IL |
990 | if ((intp->srch_algo[demod] == STV0900_BLIND_SEARCH) || |
991 | (intp->symbol_rate[demod] < 10000000)) | |
992 | msleep(50); | |
993 | else | |
994 | msleep(5); | |
ce45264e | 995 | |
a3a4f7e1 IL |
996 | stv0900_get_lock_timeout(&timed, &timef, srate, |
997 | STV0900_WARM_START); | |
ce45264e | 998 | |
a3a4f7e1 IL |
999 | if (stv0900_get_demod_lock(intp, demod, timed / 2) == FALSE) { |
1000 | stv0900_write_reg(intp, DMDISTATE, 0x1f); | |
1001 | stv0900_write_reg(intp, CFRINIT1, freq1); | |
1002 | stv0900_write_reg(intp, CFRINIT0, freq0); | |
1003 | stv0900_write_reg(intp, DMDISTATE, 0x18); | |
1004 | i = 0; | |
1005 | while ((stv0900_get_demod_lock(intp, | |
1006 | demod, | |
1007 | timed / 2) == FALSE) && | |
1008 | (i <= 2)) { | |
1009 | stv0900_write_reg(intp, DMDISTATE, 0x1f); | |
1010 | stv0900_write_reg(intp, CFRINIT1, freq1); | |
1011 | stv0900_write_reg(intp, CFRINIT0, freq0); | |
1012 | stv0900_write_reg(intp, DMDISTATE, 0x18); | |
1013 | i++; | |
ce45264e | 1014 | } |
a3a4f7e1 | 1015 | } |
ce45264e | 1016 | |
a3a4f7e1 | 1017 | } |
ce45264e | 1018 | |
a3a4f7e1 IL |
1019 | if (intp->chip_id >= 0x20) |
1020 | stv0900_write_reg(intp, CARFREQ, 0x49); | |
ce45264e | 1021 | |
a3a4f7e1 IL |
1022 | if ((intp->result[demod].standard == STV0900_DVBS1_STANDARD) || |
1023 | (intp->result[demod].standard == STV0900_DSS_STANDARD)) | |
1024 | stv0900_set_viterbi_tracq(intp, demod); | |
ce45264e | 1025 | |
a3a4f7e1 | 1026 | } |
ce45264e | 1027 | |
a3a4f7e1 IL |
1028 | static int stv0900_get_fec_lock(struct stv0900_internal *intp, |
1029 | enum fe_stv0900_demod_num demod, s32 time_out) | |
1030 | { | |
1031 | s32 timer = 0, lock = 0; | |
ce45264e | 1032 | |
a3a4f7e1 | 1033 | enum fe_stv0900_search_state dmd_state; |
ce45264e | 1034 | |
8171c205 | 1035 | dprintk("%s\n", __func__); |
ce45264e | 1036 | |
a3a4f7e1 | 1037 | dmd_state = stv0900_get_bits(intp, HEADER_MODE); |
ce45264e IL |
1038 | |
1039 | while ((timer < time_out) && (lock == 0)) { | |
1040 | switch (dmd_state) { | |
1041 | case STV0900_SEARCH: | |
1042 | case STV0900_PLH_DETECTED: | |
1043 | default: | |
1044 | lock = 0; | |
1045 | break; | |
1046 | case STV0900_DVBS2_FOUND: | |
a3a4f7e1 | 1047 | lock = stv0900_get_bits(intp, PKTDELIN_LOCK); |
ce45264e IL |
1048 | break; |
1049 | case STV0900_DVBS_FOUND: | |
a3a4f7e1 | 1050 | lock = stv0900_get_bits(intp, LOCKEDVIT); |
ce45264e IL |
1051 | break; |
1052 | } | |
1053 | ||
1054 | if (lock == 0) { | |
1055 | msleep(10); | |
1056 | timer += 10; | |
1057 | } | |
1058 | } | |
1059 | ||
1060 | if (lock) | |
a3a4f7e1 | 1061 | dprintk("%s: DEMOD FEC LOCK OK\n", __func__); |
ce45264e | 1062 | else |
a3a4f7e1 | 1063 | dprintk("%s: DEMOD FEC LOCK FAIL\n", __func__); |
ce45264e IL |
1064 | |
1065 | return lock; | |
1066 | } | |
1067 | ||
a3a4f7e1 | 1068 | static int stv0900_wait_for_lock(struct stv0900_internal *intp, |
ce45264e IL |
1069 | enum fe_stv0900_demod_num demod, |
1070 | s32 dmd_timeout, s32 fec_timeout) | |
1071 | { | |
1072 | ||
a3a4f7e1 | 1073 | s32 timer = 0, lock = 0; |
ce45264e | 1074 | |
8171c205 | 1075 | dprintk("%s\n", __func__); |
ce45264e | 1076 | |
a3a4f7e1 | 1077 | lock = stv0900_get_demod_lock(intp, demod, dmd_timeout); |
ce45264e IL |
1078 | |
1079 | if (lock) | |
c6aa852a | 1080 | lock = stv0900_get_fec_lock(intp, demod, fec_timeout); |
ce45264e IL |
1081 | |
1082 | if (lock) { | |
1083 | lock = 0; | |
1084 | ||
a3a4f7e1 IL |
1085 | dprintk("%s: Timer = %d, time_out = %d\n", |
1086 | __func__, timer, fec_timeout); | |
ce45264e IL |
1087 | |
1088 | while ((timer < fec_timeout) && (lock == 0)) { | |
a3a4f7e1 | 1089 | lock = stv0900_get_bits(intp, TSFIFO_LINEOK); |
ce45264e IL |
1090 | msleep(1); |
1091 | timer++; | |
1092 | } | |
1093 | } | |
1094 | ||
1095 | if (lock) | |
8171c205 | 1096 | dprintk("%s: DEMOD LOCK OK\n", __func__); |
ce45264e | 1097 | else |
8171c205 | 1098 | dprintk("%s: DEMOD LOCK FAIL\n", __func__); |
ce45264e IL |
1099 | |
1100 | if (lock) | |
1101 | return TRUE; | |
1102 | else | |
1103 | return FALSE; | |
1104 | } | |
1105 | ||
1106 | enum fe_stv0900_tracking_standard stv0900_get_standard(struct dvb_frontend *fe, | |
1107 | enum fe_stv0900_demod_num demod) | |
1108 | { | |
1109 | struct stv0900_state *state = fe->demodulator_priv; | |
a3a4f7e1 | 1110 | struct stv0900_internal *intp = state->internal; |
ce45264e | 1111 | enum fe_stv0900_tracking_standard fnd_standard; |
ce45264e | 1112 | |
a3a4f7e1 | 1113 | int hdr_mode = stv0900_get_bits(intp, HEADER_MODE); |
ce45264e | 1114 | |
a3a4f7e1 IL |
1115 | switch (hdr_mode) { |
1116 | case 2: | |
ce45264e | 1117 | fnd_standard = STV0900_DVBS2_STANDARD; |
a3a4f7e1 IL |
1118 | break; |
1119 | case 3: | |
1120 | if (stv0900_get_bits(intp, DSS_DVB) == 1) | |
ce45264e IL |
1121 | fnd_standard = STV0900_DSS_STANDARD; |
1122 | else | |
1123 | fnd_standard = STV0900_DVBS1_STANDARD; | |
a3a4f7e1 IL |
1124 | |
1125 | break; | |
1126 | default: | |
ce45264e | 1127 | fnd_standard = STV0900_UNKNOWN_STANDARD; |
a3a4f7e1 IL |
1128 | } |
1129 | ||
1130 | dprintk("%s: standard %d\n", __func__, fnd_standard); | |
ce45264e IL |
1131 | |
1132 | return fnd_standard; | |
1133 | } | |
1134 | ||
a3a4f7e1 | 1135 | static s32 stv0900_get_carr_freq(struct stv0900_internal *intp, u32 mclk, |
ce45264e IL |
1136 | enum fe_stv0900_demod_num demod) |
1137 | { | |
a3a4f7e1 IL |
1138 | s32 derot, |
1139 | rem1, | |
1140 | rem2, | |
1141 | intval1, | |
1142 | intval2; | |
ce45264e | 1143 | |
a3a4f7e1 IL |
1144 | derot = (stv0900_get_bits(intp, CAR_FREQ2) << 16) + |
1145 | (stv0900_get_bits(intp, CAR_FREQ1) << 8) + | |
1146 | (stv0900_get_bits(intp, CAR_FREQ0)); | |
ce45264e IL |
1147 | |
1148 | derot = ge2comp(derot, 24); | |
1149 | intval1 = mclk >> 12; | |
1150 | intval2 = derot >> 12; | |
1151 | rem1 = mclk % 0x1000; | |
1152 | rem2 = derot % 0x1000; | |
1153 | derot = (intval1 * intval2) + | |
1154 | ((intval1 * rem2) >> 12) + | |
1155 | ((intval2 * rem1) >> 12); | |
1156 | ||
1157 | return derot; | |
1158 | } | |
1159 | ||
1160 | static u32 stv0900_get_tuner_freq(struct dvb_frontend *fe) | |
1161 | { | |
1162 | struct dvb_frontend_ops *frontend_ops = NULL; | |
1163 | struct dvb_tuner_ops *tuner_ops = NULL; | |
a3a4f7e1 | 1164 | u32 freq = 0; |
ce45264e | 1165 | |
4880f564 CD |
1166 | frontend_ops = &fe->ops; |
1167 | tuner_ops = &frontend_ops->tuner_ops; | |
ce45264e IL |
1168 | |
1169 | if (tuner_ops->get_frequency) { | |
a3a4f7e1 | 1170 | if ((tuner_ops->get_frequency(fe, &freq)) < 0) |
ce45264e IL |
1171 | dprintk("%s: Invalid parameter\n", __func__); |
1172 | else | |
a3a4f7e1 | 1173 | dprintk("%s: Frequency=%d\n", __func__, freq); |
ce45264e | 1174 | |
ce45264e IL |
1175 | } |
1176 | ||
a3a4f7e1 | 1177 | return freq; |
ce45264e IL |
1178 | } |
1179 | ||
a3a4f7e1 IL |
1180 | static enum |
1181 | fe_stv0900_signal_type stv0900_get_signal_params(struct dvb_frontend *fe) | |
ce45264e IL |
1182 | { |
1183 | struct stv0900_state *state = fe->demodulator_priv; | |
a3a4f7e1 | 1184 | struct stv0900_internal *intp = state->internal; |
ce45264e IL |
1185 | enum fe_stv0900_demod_num demod = state->demod; |
1186 | enum fe_stv0900_signal_type range = STV0900_OUTOFRANGE; | |
a3a4f7e1 IL |
1187 | struct stv0900_signal_info *result = &intp->result[demod]; |
1188 | s32 offsetFreq, | |
1189 | srate_offset; | |
1190 | int i = 0, | |
1191 | d = demod; | |
ce45264e IL |
1192 | |
1193 | u8 timing; | |
1194 | ||
1195 | msleep(5); | |
a3a4f7e1 IL |
1196 | if (intp->srch_algo[d] == STV0900_BLIND_SEARCH) { |
1197 | timing = stv0900_read_reg(intp, TMGREG2); | |
1198 | i = 0; | |
1199 | stv0900_write_reg(intp, SFRSTEP, 0x5c); | |
1200 | ||
1201 | while ((i <= 50) && (timing != 0) && (timing != 0xff)) { | |
1202 | timing = stv0900_read_reg(intp, TMGREG2); | |
1203 | msleep(5); | |
1204 | i += 5; | |
ce45264e | 1205 | } |
a3a4f7e1 | 1206 | } |
ce45264e | 1207 | |
a3a4f7e1 | 1208 | result->standard = stv0900_get_standard(fe, d); |
cd79d33e IL |
1209 | if (intp->tuner_type[demod] == 3) |
1210 | result->frequency = stv0900_get_freq_auto(intp, d); | |
1211 | else | |
1212 | result->frequency = stv0900_get_tuner_freq(fe); | |
1213 | ||
a3a4f7e1 IL |
1214 | offsetFreq = stv0900_get_carr_freq(intp, intp->mclk, d) / 1000; |
1215 | result->frequency += offsetFreq; | |
1216 | result->symbol_rate = stv0900_get_symbol_rate(intp, intp->mclk, d); | |
1217 | srate_offset = stv0900_get_timing_offst(intp, result->symbol_rate, d); | |
1218 | result->symbol_rate += srate_offset; | |
1219 | result->fec = stv0900_get_vit_fec(intp, d); | |
1220 | result->modcode = stv0900_get_bits(intp, DEMOD_MODCOD); | |
1221 | result->pilot = stv0900_get_bits(intp, DEMOD_TYPE) & 0x01; | |
1222 | result->frame_len = ((u32)stv0900_get_bits(intp, DEMOD_TYPE)) >> 1; | |
1223 | result->rolloff = stv0900_get_bits(intp, ROLLOFF_STATUS); | |
fad93fdb AO |
1224 | |
1225 | dprintk("%s: modcode=0x%x \n", __func__, result->modcode); | |
1226 | ||
a3a4f7e1 IL |
1227 | switch (result->standard) { |
1228 | case STV0900_DVBS2_STANDARD: | |
1229 | result->spectrum = stv0900_get_bits(intp, SPECINV_DEMOD); | |
1230 | if (result->modcode <= STV0900_QPSK_910) | |
1231 | result->modulation = STV0900_QPSK; | |
1232 | else if (result->modcode <= STV0900_8PSK_910) | |
1233 | result->modulation = STV0900_8PSK; | |
1234 | else if (result->modcode <= STV0900_16APSK_910) | |
1235 | result->modulation = STV0900_16APSK; | |
1236 | else if (result->modcode <= STV0900_32APSK_910) | |
1237 | result->modulation = STV0900_32APSK; | |
1238 | else | |
1239 | result->modulation = STV0900_UNKNOWN; | |
ce45264e | 1240 | break; |
a3a4f7e1 IL |
1241 | case STV0900_DVBS1_STANDARD: |
1242 | case STV0900_DSS_STANDARD: | |
1243 | result->spectrum = stv0900_get_bits(intp, IQINV); | |
1244 | result->modulation = STV0900_QPSK; | |
1245 | break; | |
1246 | default: | |
1247 | break; | |
1248 | } | |
ce45264e | 1249 | |
a3a4f7e1 IL |
1250 | if ((intp->srch_algo[d] == STV0900_BLIND_SEARCH) || |
1251 | (intp->symbol_rate[d] < 10000000)) { | |
1252 | offsetFreq = result->frequency - intp->freq[d]; | |
cd79d33e IL |
1253 | if (intp->tuner_type[demod] == 3) |
1254 | intp->freq[d] = stv0900_get_freq_auto(intp, d); | |
1255 | else | |
1256 | intp->freq[d] = stv0900_get_tuner_freq(fe); | |
1257 | ||
a3a4f7e1 IL |
1258 | if (ABS(offsetFreq) <= ((intp->srch_range[d] / 2000) + 500)) |
1259 | range = STV0900_RANGEOK; | |
1260 | else if (ABS(offsetFreq) <= | |
1261 | (stv0900_carrier_width(result->symbol_rate, | |
1262 | result->rolloff) / 2000)) | |
1263 | range = STV0900_RANGEOK; | |
ce45264e | 1264 | |
a3a4f7e1 IL |
1265 | } else if (ABS(offsetFreq) <= ((intp->srch_range[d] / 2000) + 500)) |
1266 | range = STV0900_RANGEOK; | |
ce45264e | 1267 | |
a3a4f7e1 | 1268 | dprintk("%s: range %d\n", __func__, range); |
ce45264e IL |
1269 | |
1270 | return range; | |
1271 | } | |
1272 | ||
a3a4f7e1 IL |
1273 | static enum |
1274 | fe_stv0900_signal_type stv0900_dvbs1_acq_workaround(struct dvb_frontend *fe) | |
ce45264e IL |
1275 | { |
1276 | struct stv0900_state *state = fe->demodulator_priv; | |
a3a4f7e1 | 1277 | struct stv0900_internal *intp = state->internal; |
ce45264e | 1278 | enum fe_stv0900_demod_num demod = state->demod; |
1ebcad77 | 1279 | enum fe_stv0900_signal_type signal_type = STV0900_NODATA; |
ce45264e | 1280 | |
a3a4f7e1 IL |
1281 | s32 srate, |
1282 | demod_timeout, | |
1283 | fec_timeout, | |
1284 | freq1, | |
1285 | freq0; | |
1286 | ||
1287 | intp->result[demod].locked = FALSE; | |
1288 | ||
1289 | if (stv0900_get_bits(intp, HEADER_MODE) == STV0900_DVBS_FOUND) { | |
1290 | srate = stv0900_get_symbol_rate(intp, intp->mclk, demod); | |
1291 | srate += stv0900_get_timing_offst(intp, srate, demod); | |
1292 | if (intp->srch_algo[demod] == STV0900_BLIND_SEARCH) | |
1293 | stv0900_set_symbol_rate(intp, intp->mclk, srate, demod); | |
1294 | ||
1295 | stv0900_get_lock_timeout(&demod_timeout, &fec_timeout, | |
1296 | srate, STV0900_WARM_START); | |
1297 | freq1 = stv0900_read_reg(intp, CFR2); | |
1298 | freq0 = stv0900_read_reg(intp, CFR1); | |
1299 | stv0900_write_bits(intp, CFR_AUTOSCAN, 0); | |
1300 | stv0900_write_bits(intp, SPECINV_CONTROL, | |
1301 | STV0900_IQ_FORCE_SWAPPED); | |
1302 | stv0900_write_reg(intp, DMDISTATE, 0x1c); | |
1303 | stv0900_write_reg(intp, CFRINIT1, freq1); | |
1304 | stv0900_write_reg(intp, CFRINIT0, freq0); | |
1305 | stv0900_write_reg(intp, DMDISTATE, 0x18); | |
1306 | if (stv0900_wait_for_lock(intp, demod, | |
1307 | demod_timeout, fec_timeout) == TRUE) { | |
1308 | intp->result[demod].locked = TRUE; | |
1309 | signal_type = stv0900_get_signal_params(fe); | |
1310 | stv0900_track_optimization(fe); | |
1311 | } else { | |
1312 | stv0900_write_bits(intp, SPECINV_CONTROL, | |
1313 | STV0900_IQ_FORCE_NORMAL); | |
1314 | stv0900_write_reg(intp, DMDISTATE, 0x1c); | |
1315 | stv0900_write_reg(intp, CFRINIT1, freq1); | |
1316 | stv0900_write_reg(intp, CFRINIT0, freq0); | |
1317 | stv0900_write_reg(intp, DMDISTATE, 0x18); | |
1318 | if (stv0900_wait_for_lock(intp, demod, | |
1319 | demod_timeout, fec_timeout) == TRUE) { | |
1320 | intp->result[demod].locked = TRUE; | |
ce45264e IL |
1321 | signal_type = stv0900_get_signal_params(fe); |
1322 | stv0900_track_optimization(fe); | |
ce45264e IL |
1323 | } |
1324 | ||
a3a4f7e1 | 1325 | } |
ce45264e | 1326 | |
a3a4f7e1 IL |
1327 | } else |
1328 | intp->result[demod].locked = FALSE; | |
ce45264e IL |
1329 | |
1330 | return signal_type; | |
1331 | } | |
1332 | ||
a3a4f7e1 | 1333 | static u16 stv0900_blind_check_agc2_min_level(struct stv0900_internal *intp, |
ce45264e IL |
1334 | enum fe_stv0900_demod_num demod) |
1335 | { | |
1336 | u32 minagc2level = 0xffff, | |
1337 | agc2level, | |
1338 | init_freq, freq_step; | |
1339 | ||
1340 | s32 i, j, nb_steps, direction; | |
1341 | ||
8171c205 | 1342 | dprintk("%s\n", __func__); |
ce45264e | 1343 | |
a3a4f7e1 IL |
1344 | stv0900_write_reg(intp, AGC2REF, 0x38); |
1345 | stv0900_write_bits(intp, SCAN_ENABLE, 0); | |
1346 | stv0900_write_bits(intp, CFR_AUTOSCAN, 0); | |
ce45264e | 1347 | |
a3a4f7e1 IL |
1348 | stv0900_write_bits(intp, AUTO_GUP, 1); |
1349 | stv0900_write_bits(intp, AUTO_GLOW, 1); | |
ce45264e | 1350 | |
a3a4f7e1 | 1351 | stv0900_write_reg(intp, DMDT0M, 0x0); |
ce45264e | 1352 | |
a3a4f7e1 IL |
1353 | stv0900_set_symbol_rate(intp, intp->mclk, 1000000, demod); |
1354 | nb_steps = -1 + (intp->srch_range[demod] / 1000000); | |
1355 | nb_steps /= 2; | |
1356 | nb_steps = (2 * nb_steps) + 1; | |
ce45264e | 1357 | |
a3a4f7e1 IL |
1358 | if (nb_steps < 0) |
1359 | nb_steps = 1; | |
ce45264e | 1360 | |
a3a4f7e1 | 1361 | direction = 1; |
ce45264e | 1362 | |
a3a4f7e1 | 1363 | freq_step = (1000000 << 8) / (intp->mclk >> 8); |
ce45264e | 1364 | |
a3a4f7e1 | 1365 | init_freq = 0; |
ce45264e | 1366 | |
a3a4f7e1 IL |
1367 | for (i = 0; i < nb_steps; i++) { |
1368 | if (direction > 0) | |
1369 | init_freq = init_freq + (freq_step * i); | |
1370 | else | |
1371 | init_freq = init_freq - (freq_step * i); | |
ce45264e | 1372 | |
a3a4f7e1 IL |
1373 | direction *= -1; |
1374 | stv0900_write_reg(intp, DMDISTATE, 0x5C); | |
1375 | stv0900_write_reg(intp, CFRINIT1, (init_freq >> 8) & 0xff); | |
1376 | stv0900_write_reg(intp, CFRINIT0, init_freq & 0xff); | |
1377 | stv0900_write_reg(intp, DMDISTATE, 0x58); | |
1378 | msleep(10); | |
1379 | agc2level = 0; | |
ce45264e | 1380 | |
a3a4f7e1 IL |
1381 | for (j = 0; j < 10; j++) |
1382 | agc2level += (stv0900_read_reg(intp, AGC2I1) << 8) | |
1383 | | stv0900_read_reg(intp, AGC2I0); | |
ce45264e | 1384 | |
a3a4f7e1 | 1385 | agc2level /= 10; |
ce45264e | 1386 | |
a3a4f7e1 IL |
1387 | if (agc2level < minagc2level) |
1388 | minagc2level = agc2level; | |
ce45264e | 1389 | |
ce45264e IL |
1390 | } |
1391 | ||
1392 | return (u16)minagc2level; | |
1393 | } | |
1394 | ||
1395 | static u32 stv0900_search_srate_coarse(struct dvb_frontend *fe) | |
1396 | { | |
1397 | struct stv0900_state *state = fe->demodulator_priv; | |
a3a4f7e1 | 1398 | struct stv0900_internal *intp = state->internal; |
ce45264e | 1399 | enum fe_stv0900_demod_num demod = state->demod; |
a3a4f7e1 | 1400 | int timing_lck = FALSE; |
ce45264e IL |
1401 | s32 i, timingcpt = 0, |
1402 | direction = 1, | |
1403 | nb_steps, | |
1404 | current_step = 0, | |
1405 | tuner_freq; | |
a3a4f7e1 IL |
1406 | u32 agc2_th, |
1407 | coarse_srate = 0, | |
1408 | agc2_integr = 0, | |
1409 | currier_step = 1200; | |
ce45264e | 1410 | |
a3a4f7e1 IL |
1411 | if (intp->chip_id >= 0x30) |
1412 | agc2_th = 0x2e00; | |
1413 | else | |
1414 | agc2_th = 0x1f00; | |
1415 | ||
1416 | stv0900_write_bits(intp, DEMOD_MODE, 0x1f); | |
1417 | stv0900_write_reg(intp, TMGCFG, 0x12); | |
1418 | stv0900_write_reg(intp, TMGTHRISE, 0xf0); | |
1419 | stv0900_write_reg(intp, TMGTHFALL, 0xe0); | |
1420 | stv0900_write_bits(intp, SCAN_ENABLE, 1); | |
1421 | stv0900_write_bits(intp, CFR_AUTOSCAN, 1); | |
1422 | stv0900_write_reg(intp, SFRUP1, 0x83); | |
1423 | stv0900_write_reg(intp, SFRUP0, 0xc0); | |
1424 | stv0900_write_reg(intp, SFRLOW1, 0x82); | |
1425 | stv0900_write_reg(intp, SFRLOW0, 0xa0); | |
1426 | stv0900_write_reg(intp, DMDT0M, 0x0); | |
1427 | stv0900_write_reg(intp, AGC2REF, 0x50); | |
1428 | ||
1429 | if (intp->chip_id >= 0x30) { | |
1430 | stv0900_write_reg(intp, CARFREQ, 0x99); | |
1431 | stv0900_write_reg(intp, SFRSTEP, 0x98); | |
1432 | } else if (intp->chip_id >= 0x20) { | |
1433 | stv0900_write_reg(intp, CARFREQ, 0x6a); | |
1434 | stv0900_write_reg(intp, SFRSTEP, 0x95); | |
1435 | } else { | |
1436 | stv0900_write_reg(intp, CARFREQ, 0xed); | |
1437 | stv0900_write_reg(intp, SFRSTEP, 0x73); | |
1438 | } | |
ce45264e | 1439 | |
a3a4f7e1 IL |
1440 | if (intp->symbol_rate[demod] <= 2000000) |
1441 | currier_step = 1000; | |
1442 | else if (intp->symbol_rate[demod] <= 5000000) | |
1443 | currier_step = 2000; | |
1444 | else if (intp->symbol_rate[demod] <= 12000000) | |
1445 | currier_step = 3000; | |
1446 | else | |
ce45264e IL |
1447 | currier_step = 5000; |
1448 | ||
a3a4f7e1 IL |
1449 | nb_steps = -1 + ((intp->srch_range[demod] / 1000) / currier_step); |
1450 | nb_steps /= 2; | |
1451 | nb_steps = (2 * nb_steps) + 1; | |
ce45264e | 1452 | |
a3a4f7e1 IL |
1453 | if (nb_steps < 0) |
1454 | nb_steps = 1; | |
1455 | else if (nb_steps > 10) { | |
1456 | nb_steps = 11; | |
1457 | currier_step = (intp->srch_range[demod] / 1000) / 10; | |
1458 | } | |
ce45264e | 1459 | |
a3a4f7e1 IL |
1460 | current_step = 0; |
1461 | direction = 1; | |
ce45264e | 1462 | |
a3a4f7e1 | 1463 | tuner_freq = intp->freq[demod]; |
ce45264e | 1464 | |
a3a4f7e1 IL |
1465 | while ((timing_lck == FALSE) && (current_step < nb_steps)) { |
1466 | stv0900_write_reg(intp, DMDISTATE, 0x5f); | |
1467 | stv0900_write_bits(intp, DEMOD_MODE, 0); | |
ce45264e | 1468 | |
a3a4f7e1 | 1469 | msleep(50); |
ce45264e | 1470 | |
a3a4f7e1 IL |
1471 | for (i = 0; i < 10; i++) { |
1472 | if (stv0900_get_bits(intp, TMGLOCK_QUALITY) >= 2) | |
1473 | timingcpt++; | |
ce45264e | 1474 | |
a3a4f7e1 IL |
1475 | agc2_integr += (stv0900_read_reg(intp, AGC2I1) << 8) | |
1476 | stv0900_read_reg(intp, AGC2I0); | |
ce45264e IL |
1477 | } |
1478 | ||
a3a4f7e1 IL |
1479 | agc2_integr /= 10; |
1480 | coarse_srate = stv0900_get_symbol_rate(intp, intp->mclk, demod); | |
1481 | current_step++; | |
1482 | direction *= -1; | |
1483 | ||
4bd69e7b | 1484 | dprintk("lock: I2C_DEMOD_MODE_FIELD =0. Search started. tuner freq=%d agc2=0x%x srate_coarse=%d tmg_cpt=%d\n", |
a3a4f7e1 IL |
1485 | tuner_freq, agc2_integr, coarse_srate, timingcpt); |
1486 | ||
1487 | if ((timingcpt >= 5) && | |
1488 | (agc2_integr < agc2_th) && | |
1489 | (coarse_srate < 55000000) && | |
1490 | (coarse_srate > 850000)) | |
1491 | timing_lck = TRUE; | |
1492 | else if (current_step < nb_steps) { | |
1493 | if (direction > 0) | |
1494 | tuner_freq += (current_step * currier_step); | |
1495 | else | |
1496 | tuner_freq -= (current_step * currier_step); | |
ce45264e | 1497 | |
cd79d33e IL |
1498 | if (intp->tuner_type[demod] == 3) |
1499 | stv0900_set_tuner_auto(intp, tuner_freq, | |
1500 | intp->bw[demod], demod); | |
1501 | else | |
1502 | stv0900_set_tuner(fe, tuner_freq, | |
1503 | intp->bw[demod]); | |
ce45264e | 1504 | } |
ce45264e IL |
1505 | } |
1506 | ||
a3a4f7e1 IL |
1507 | if (timing_lck == FALSE) |
1508 | coarse_srate = 0; | |
1509 | else | |
1510 | coarse_srate = stv0900_get_symbol_rate(intp, intp->mclk, demod); | |
1511 | ||
ce45264e IL |
1512 | return coarse_srate; |
1513 | } | |
1514 | ||
1515 | static u32 stv0900_search_srate_fine(struct dvb_frontend *fe) | |
1516 | { | |
1517 | struct stv0900_state *state = fe->demodulator_priv; | |
a3a4f7e1 | 1518 | struct stv0900_internal *intp = state->internal; |
ce45264e | 1519 | enum fe_stv0900_demod_num demod = state->demod; |
a3a4f7e1 IL |
1520 | u32 coarse_srate, |
1521 | coarse_freq, | |
1522 | symb, | |
1523 | symbmax, | |
1524 | symbmin, | |
1525 | symbcomp; | |
1526 | ||
1527 | coarse_srate = stv0900_get_symbol_rate(intp, intp->mclk, demod); | |
1528 | ||
1529 | if (coarse_srate > 3000000) { | |
1530 | symbmax = 13 * (coarse_srate / 10); | |
1531 | symbmax = (symbmax / 1000) * 65536; | |
1532 | symbmax /= (intp->mclk / 1000); | |
1533 | ||
1534 | symbmin = 10 * (coarse_srate / 13); | |
1535 | symbmin = (symbmin / 1000)*65536; | |
1536 | symbmin /= (intp->mclk / 1000); | |
1537 | ||
1538 | symb = (coarse_srate / 1000) * 65536; | |
1539 | symb /= (intp->mclk / 1000); | |
1540 | } else { | |
1541 | symbmax = 13 * (coarse_srate / 10); | |
1542 | symbmax = (symbmax / 100) * 65536; | |
1543 | symbmax /= (intp->mclk / 100); | |
ce45264e | 1544 | |
a3a4f7e1 IL |
1545 | symbmin = 10 * (coarse_srate / 14); |
1546 | symbmin = (symbmin / 100) * 65536; | |
1547 | symbmin /= (intp->mclk / 100); | |
ce45264e | 1548 | |
a3a4f7e1 IL |
1549 | symb = (coarse_srate / 100) * 65536; |
1550 | symb /= (intp->mclk / 100); | |
1551 | } | |
ce45264e | 1552 | |
a3a4f7e1 | 1553 | symbcomp = 13 * (coarse_srate / 10); |
4e0b0036 MCC |
1554 | coarse_freq = (stv0900_read_reg(intp, CFR2) << 8) |
1555 | | stv0900_read_reg(intp, CFR1); | |
a3a4f7e1 IL |
1556 | |
1557 | if (symbcomp < intp->symbol_rate[demod]) | |
1558 | coarse_srate = 0; | |
1559 | else { | |
1560 | stv0900_write_reg(intp, DMDISTATE, 0x1f); | |
1561 | stv0900_write_reg(intp, TMGCFG2, 0xc1); | |
1562 | stv0900_write_reg(intp, TMGTHRISE, 0x20); | |
1563 | stv0900_write_reg(intp, TMGTHFALL, 0x00); | |
1564 | stv0900_write_reg(intp, TMGCFG, 0xd2); | |
1565 | stv0900_write_bits(intp, CFR_AUTOSCAN, 0); | |
1566 | stv0900_write_reg(intp, AGC2REF, 0x38); | |
1567 | ||
1568 | if (intp->chip_id >= 0x30) | |
1569 | stv0900_write_reg(intp, CARFREQ, 0x79); | |
1570 | else if (intp->chip_id >= 0x20) | |
1571 | stv0900_write_reg(intp, CARFREQ, 0x49); | |
1572 | else | |
1573 | stv0900_write_reg(intp, CARFREQ, 0xed); | |
ce45264e | 1574 | |
a3a4f7e1 IL |
1575 | stv0900_write_reg(intp, SFRUP1, (symbmax >> 8) & 0x7f); |
1576 | stv0900_write_reg(intp, SFRUP0, (symbmax & 0xff)); | |
ce45264e | 1577 | |
a3a4f7e1 IL |
1578 | stv0900_write_reg(intp, SFRLOW1, (symbmin >> 8) & 0x7f); |
1579 | stv0900_write_reg(intp, SFRLOW0, (symbmin & 0xff)); | |
1580 | ||
1581 | stv0900_write_reg(intp, SFRINIT1, (symb >> 8) & 0xff); | |
1582 | stv0900_write_reg(intp, SFRINIT0, (symb & 0xff)); | |
1583 | ||
1584 | stv0900_write_reg(intp, DMDT0M, 0x20); | |
1585 | stv0900_write_reg(intp, CFRINIT1, (coarse_freq >> 8) & 0xff); | |
1586 | stv0900_write_reg(intp, CFRINIT0, coarse_freq & 0xff); | |
1587 | stv0900_write_reg(intp, DMDISTATE, 0x15); | |
ce45264e IL |
1588 | } |
1589 | ||
1590 | return coarse_srate; | |
1591 | } | |
1592 | ||
1593 | static int stv0900_blind_search_algo(struct dvb_frontend *fe) | |
1594 | { | |
1595 | struct stv0900_state *state = fe->demodulator_priv; | |
a3a4f7e1 | 1596 | struct stv0900_internal *intp = state->internal; |
ce45264e | 1597 | enum fe_stv0900_demod_num demod = state->demod; |
a3a4f7e1 IL |
1598 | u8 k_ref_tmg, |
1599 | k_ref_tmg_max, | |
1600 | k_ref_tmg_min; | |
1601 | u32 coarse_srate, | |
1602 | agc2_th; | |
1603 | int lock = FALSE, | |
1604 | coarse_fail = FALSE; | |
1605 | s32 demod_timeout = 500, | |
1606 | fec_timeout = 50, | |
1607 | fail_cpt, | |
1608 | i, | |
1609 | agc2_overflow; | |
1610 | u16 agc2_int; | |
1611 | u8 dstatus2; | |
ce45264e | 1612 | |
8171c205 | 1613 | dprintk("%s\n", __func__); |
ce45264e | 1614 | |
a3a4f7e1 | 1615 | if (intp->chip_id < 0x20) { |
ce45264e IL |
1616 | k_ref_tmg_max = 233; |
1617 | k_ref_tmg_min = 143; | |
1618 | } else { | |
a3a4f7e1 IL |
1619 | k_ref_tmg_max = 110; |
1620 | k_ref_tmg_min = 10; | |
ce45264e IL |
1621 | } |
1622 | ||
a3a4f7e1 IL |
1623 | if (intp->chip_id <= 0x20) |
1624 | agc2_th = STV0900_BLIND_SEARCH_AGC2_TH; | |
1625 | else | |
1626 | agc2_th = STV0900_BLIND_SEARCH_AGC2_TH_CUT30; | |
ce45264e | 1627 | |
a3a4f7e1 | 1628 | agc2_int = stv0900_blind_check_agc2_min_level(intp, demod); |
ce45264e | 1629 | |
fad93fdb AO |
1630 | dprintk("%s agc2_int=%d agc2_th=%d \n", __func__, agc2_int, agc2_th); |
1631 | if (agc2_int > agc2_th) | |
a3a4f7e1 | 1632 | return FALSE; |
ce45264e | 1633 | |
a3a4f7e1 IL |
1634 | if (intp->chip_id == 0x10) |
1635 | stv0900_write_reg(intp, CORRELEXP, 0xaa); | |
ce45264e | 1636 | |
a3a4f7e1 IL |
1637 | if (intp->chip_id < 0x20) |
1638 | stv0900_write_reg(intp, CARHDR, 0x55); | |
1639 | else | |
1640 | stv0900_write_reg(intp, CARHDR, 0x20); | |
ce45264e | 1641 | |
a3a4f7e1 IL |
1642 | if (intp->chip_id <= 0x20) |
1643 | stv0900_write_reg(intp, CARCFG, 0xc4); | |
1644 | else | |
1645 | stv0900_write_reg(intp, CARCFG, 0x6); | |
ce45264e | 1646 | |
a3a4f7e1 | 1647 | stv0900_write_reg(intp, RTCS2, 0x44); |
ce45264e | 1648 | |
a3a4f7e1 IL |
1649 | if (intp->chip_id >= 0x20) { |
1650 | stv0900_write_reg(intp, EQUALCFG, 0x41); | |
1651 | stv0900_write_reg(intp, FFECFG, 0x41); | |
1652 | stv0900_write_reg(intp, VITSCALE, 0x82); | |
1653 | stv0900_write_reg(intp, VAVSRVIT, 0x0); | |
1654 | } | |
ce45264e | 1655 | |
a3a4f7e1 | 1656 | k_ref_tmg = k_ref_tmg_max; |
ce45264e | 1657 | |
a3a4f7e1 IL |
1658 | do { |
1659 | stv0900_write_reg(intp, KREFTMG, k_ref_tmg); | |
1660 | if (stv0900_search_srate_coarse(fe) != 0) { | |
1661 | coarse_srate = stv0900_search_srate_fine(fe); | |
1662 | ||
1663 | if (coarse_srate != 0) { | |
1664 | stv0900_get_lock_timeout(&demod_timeout, | |
1665 | &fec_timeout, | |
1666 | coarse_srate, | |
1667 | STV0900_BLIND_SEARCH); | |
1668 | lock = stv0900_get_demod_lock(intp, | |
1669 | demod, | |
1670 | demod_timeout); | |
1671 | } else | |
1672 | lock = FALSE; | |
1673 | } else { | |
1674 | fail_cpt = 0; | |
1675 | agc2_overflow = 0; | |
ce45264e | 1676 | |
a3a4f7e1 IL |
1677 | for (i = 0; i < 10; i++) { |
1678 | agc2_int = (stv0900_read_reg(intp, AGC2I1) << 8) | |
1679 | | stv0900_read_reg(intp, AGC2I0); | |
ce45264e | 1680 | |
a3a4f7e1 IL |
1681 | if (agc2_int >= 0xff00) |
1682 | agc2_overflow++; | |
ce45264e | 1683 | |
a3a4f7e1 | 1684 | dstatus2 = stv0900_read_reg(intp, DSTATUS2); |
ce45264e | 1685 | |
a3a4f7e1 IL |
1686 | if (((dstatus2 & 0x1) == 0x1) && |
1687 | ((dstatus2 >> 7) == 1)) | |
1688 | fail_cpt++; | |
1689 | } | |
ce45264e | 1690 | |
a3a4f7e1 IL |
1691 | if ((fail_cpt > 7) || (agc2_overflow > 7)) |
1692 | coarse_fail = TRUE; | |
ce45264e | 1693 | |
a3a4f7e1 IL |
1694 | lock = FALSE; |
1695 | } | |
1696 | k_ref_tmg -= 30; | |
1697 | } while ((k_ref_tmg >= k_ref_tmg_min) && | |
1698 | (lock == FALSE) && | |
1699 | (coarse_fail == FALSE)); | |
ce45264e IL |
1700 | |
1701 | return lock; | |
1702 | } | |
1703 | ||
a3a4f7e1 | 1704 | static void stv0900_set_viterbi_acq(struct stv0900_internal *intp, |
ce45264e IL |
1705 | enum fe_stv0900_demod_num demod) |
1706 | { | |
a3a4f7e1 | 1707 | s32 vth_reg = VTH12; |
ce45264e | 1708 | |
8171c205 | 1709 | dprintk("%s\n", __func__); |
ce45264e | 1710 | |
a3a4f7e1 IL |
1711 | stv0900_write_reg(intp, vth_reg++, 0x96); |
1712 | stv0900_write_reg(intp, vth_reg++, 0x64); | |
1713 | stv0900_write_reg(intp, vth_reg++, 0x36); | |
1714 | stv0900_write_reg(intp, vth_reg++, 0x23); | |
1715 | stv0900_write_reg(intp, vth_reg++, 0x1e); | |
1716 | stv0900_write_reg(intp, vth_reg++, 0x19); | |
ce45264e IL |
1717 | } |
1718 | ||
a3a4f7e1 | 1719 | static void stv0900_set_search_standard(struct stv0900_internal *intp, |
ce45264e IL |
1720 | enum fe_stv0900_demod_num demod) |
1721 | { | |
1722 | ||
8171c205 | 1723 | dprintk("%s\n", __func__); |
ce45264e | 1724 | |
a3a4f7e1 | 1725 | switch (intp->srch_standard[demod]) { |
ce45264e IL |
1726 | case STV0900_SEARCH_DVBS1: |
1727 | dprintk("Search Standard = DVBS1\n"); | |
1728 | break; | |
1729 | case STV0900_SEARCH_DSS: | |
1730 | dprintk("Search Standard = DSS\n"); | |
ce45264e | 1731 | break; |
6694ba62 | 1732 | case STV0900_SEARCH_DVBS2: |
ce45264e | 1733 | dprintk("Search Standard = DVBS2\n"); |
6694ba62 | 1734 | break; |
ce45264e IL |
1735 | case STV0900_AUTO_SEARCH: |
1736 | default: | |
1737 | dprintk("Search Standard = AUTO\n"); | |
1738 | break; | |
1739 | } | |
1740 | ||
a3a4f7e1 IL |
1741 | switch (intp->srch_standard[demod]) { |
1742 | case STV0900_SEARCH_DVBS1: | |
1743 | case STV0900_SEARCH_DSS: | |
1744 | stv0900_write_bits(intp, DVBS1_ENABLE, 1); | |
1745 | stv0900_write_bits(intp, DVBS2_ENABLE, 0); | |
1746 | stv0900_write_bits(intp, STOP_CLKVIT, 0); | |
1747 | stv0900_set_dvbs1_track_car_loop(intp, | |
1748 | demod, | |
1749 | intp->symbol_rate[demod]); | |
1750 | stv0900_write_reg(intp, CAR2CFG, 0x22); | |
1751 | ||
1752 | stv0900_set_viterbi_acq(intp, demod); | |
1753 | stv0900_set_viterbi_standard(intp, | |
1754 | intp->srch_standard[demod], | |
1755 | intp->fec[demod], demod); | |
ce45264e | 1756 | |
a3a4f7e1 IL |
1757 | break; |
1758 | case STV0900_SEARCH_DVBS2: | |
1759 | stv0900_write_bits(intp, DVBS1_ENABLE, 0); | |
1760 | stv0900_write_bits(intp, DVBS2_ENABLE, 1); | |
1761 | stv0900_write_bits(intp, STOP_CLKVIT, 1); | |
1762 | stv0900_write_reg(intp, ACLC, 0x1a); | |
1763 | stv0900_write_reg(intp, BCLC, 0x09); | |
1764 | if (intp->chip_id <= 0x20) /*cut 1.x and 2.0*/ | |
1765 | stv0900_write_reg(intp, CAR2CFG, 0x26); | |
1766 | else | |
1767 | stv0900_write_reg(intp, CAR2CFG, 0x66); | |
ce45264e | 1768 | |
a3a4f7e1 IL |
1769 | if (intp->demod_mode != STV0900_SINGLE) { |
1770 | if (intp->chip_id <= 0x11) | |
1771 | stv0900_stop_all_s2_modcod(intp, demod); | |
ce45264e | 1772 | else |
a3a4f7e1 | 1773 | stv0900_activate_s2_modcod(intp, demod); |
ce45264e | 1774 | |
a3a4f7e1 IL |
1775 | } else |
1776 | stv0900_activate_s2_modcod_single(intp, demod); | |
ce45264e | 1777 | |
a3a4f7e1 | 1778 | stv0900_set_viterbi_tracq(intp, demod); |
ce45264e | 1779 | |
a3a4f7e1 IL |
1780 | break; |
1781 | case STV0900_AUTO_SEARCH: | |
1782 | default: | |
1783 | stv0900_write_bits(intp, DVBS1_ENABLE, 1); | |
1784 | stv0900_write_bits(intp, DVBS2_ENABLE, 1); | |
1785 | stv0900_write_bits(intp, STOP_CLKVIT, 0); | |
1786 | stv0900_write_reg(intp, ACLC, 0x1a); | |
1787 | stv0900_write_reg(intp, BCLC, 0x09); | |
1788 | stv0900_set_dvbs1_track_car_loop(intp, | |
1789 | demod, | |
1790 | intp->symbol_rate[demod]); | |
1791 | if (intp->chip_id <= 0x20) /*cut 1.x and 2.0*/ | |
1792 | stv0900_write_reg(intp, CAR2CFG, 0x26); | |
1793 | else | |
1794 | stv0900_write_reg(intp, CAR2CFG, 0x66); | |
ce45264e | 1795 | |
a3a4f7e1 IL |
1796 | if (intp->demod_mode != STV0900_SINGLE) { |
1797 | if (intp->chip_id <= 0x11) | |
1798 | stv0900_stop_all_s2_modcod(intp, demod); | |
ce45264e | 1799 | else |
a3a4f7e1 | 1800 | stv0900_activate_s2_modcod(intp, demod); |
ce45264e | 1801 | |
a3a4f7e1 IL |
1802 | } else |
1803 | stv0900_activate_s2_modcod_single(intp, demod); | |
ce45264e | 1804 | |
a3a4f7e1 IL |
1805 | stv0900_set_viterbi_tracq(intp, demod); |
1806 | stv0900_set_viterbi_standard(intp, | |
1807 | intp->srch_standard[demod], | |
1808 | intp->fec[demod], demod); | |
ce45264e IL |
1809 | |
1810 | break; | |
1811 | } | |
1812 | } | |
1813 | ||
1814 | enum fe_stv0900_signal_type stv0900_algo(struct dvb_frontend *fe) | |
1815 | { | |
1816 | struct stv0900_state *state = fe->demodulator_priv; | |
a3a4f7e1 | 1817 | struct stv0900_internal *intp = state->internal; |
ce45264e IL |
1818 | enum fe_stv0900_demod_num demod = state->demod; |
1819 | ||
a3a4f7e1 IL |
1820 | s32 demod_timeout = 500, fec_timeout = 50; |
1821 | s32 aq_power, agc1_power, i; | |
ce45264e IL |
1822 | |
1823 | int lock = FALSE, low_sr = FALSE; | |
1824 | ||
1825 | enum fe_stv0900_signal_type signal_type = STV0900_NOCARRIER; | |
1826 | enum fe_stv0900_search_algo algo; | |
1827 | int no_signal = FALSE; | |
1828 | ||
8171c205 | 1829 | dprintk("%s\n", __func__); |
ce45264e | 1830 | |
a3a4f7e1 IL |
1831 | algo = intp->srch_algo[demod]; |
1832 | stv0900_write_bits(intp, RST_HWARE, 1); | |
1833 | stv0900_write_reg(intp, DMDISTATE, 0x5c); | |
1834 | if (intp->chip_id >= 0x20) { | |
1835 | if (intp->symbol_rate[demod] > 5000000) | |
1836 | stv0900_write_reg(intp, CORRELABS, 0x9e); | |
ce45264e | 1837 | else |
a3a4f7e1 IL |
1838 | stv0900_write_reg(intp, CORRELABS, 0x82); |
1839 | } else | |
1840 | stv0900_write_reg(intp, CORRELABS, 0x88); | |
ce45264e | 1841 | |
a3a4f7e1 IL |
1842 | stv0900_get_lock_timeout(&demod_timeout, &fec_timeout, |
1843 | intp->symbol_rate[demod], | |
1844 | intp->srch_algo[demod]); | |
ce45264e | 1845 | |
a3a4f7e1 IL |
1846 | if (intp->srch_algo[demod] == STV0900_BLIND_SEARCH) { |
1847 | intp->bw[demod] = 2 * 36000000; | |
ce45264e | 1848 | |
a3a4f7e1 IL |
1849 | stv0900_write_reg(intp, TMGCFG2, 0xc0); |
1850 | stv0900_write_reg(intp, CORRELMANT, 0x70); | |
ce45264e | 1851 | |
a3a4f7e1 IL |
1852 | stv0900_set_symbol_rate(intp, intp->mclk, 1000000, demod); |
1853 | } else { | |
1854 | stv0900_write_reg(intp, DMDT0M, 0x20); | |
1855 | stv0900_write_reg(intp, TMGCFG, 0xd2); | |
ce45264e | 1856 | |
a3a4f7e1 IL |
1857 | if (intp->symbol_rate[demod] < 2000000) |
1858 | stv0900_write_reg(intp, CORRELMANT, 0x63); | |
ce45264e | 1859 | else |
a3a4f7e1 | 1860 | stv0900_write_reg(intp, CORRELMANT, 0x70); |
ce45264e | 1861 | |
a3a4f7e1 | 1862 | stv0900_write_reg(intp, AGC2REF, 0x38); |
ce45264e | 1863 | |
a3a4f7e1 IL |
1864 | intp->bw[demod] = |
1865 | stv0900_carrier_width(intp->symbol_rate[demod], | |
1866 | intp->rolloff); | |
1867 | if (intp->chip_id >= 0x20) { | |
1868 | stv0900_write_reg(intp, KREFTMG, 0x5a); | |
ce45264e | 1869 | |
a3a4f7e1 IL |
1870 | if (intp->srch_algo[demod] == STV0900_COLD_START) { |
1871 | intp->bw[demod] += 10000000; | |
1872 | intp->bw[demod] *= 15; | |
1873 | intp->bw[demod] /= 10; | |
1874 | } else if (intp->srch_algo[demod] == STV0900_WARM_START) | |
1875 | intp->bw[demod] += 10000000; | |
ce45264e | 1876 | |
ce45264e | 1877 | } else { |
a3a4f7e1 IL |
1878 | stv0900_write_reg(intp, KREFTMG, 0xc1); |
1879 | intp->bw[demod] += 10000000; | |
1880 | intp->bw[demod] *= 15; | |
1881 | intp->bw[demod] /= 10; | |
1882 | } | |
ce45264e | 1883 | |
a3a4f7e1 | 1884 | stv0900_write_reg(intp, TMGCFG2, 0xc1); |
ce45264e | 1885 | |
a3a4f7e1 IL |
1886 | stv0900_set_symbol_rate(intp, intp->mclk, |
1887 | intp->symbol_rate[demod], demod); | |
1888 | stv0900_set_max_symbol_rate(intp, intp->mclk, | |
1889 | intp->symbol_rate[demod], demod); | |
1890 | stv0900_set_min_symbol_rate(intp, intp->mclk, | |
1891 | intp->symbol_rate[demod], demod); | |
1892 | if (intp->symbol_rate[demod] >= 10000000) | |
1893 | low_sr = FALSE; | |
1894 | else | |
1895 | low_sr = TRUE; | |
ce45264e | 1896 | |
a3a4f7e1 | 1897 | } |
ce45264e | 1898 | |
cd79d33e IL |
1899 | if (intp->tuner_type[demod] == 3) |
1900 | stv0900_set_tuner_auto(intp, intp->freq[demod], | |
1901 | intp->bw[demod], demod); | |
1902 | else | |
1903 | stv0900_set_tuner(fe, intp->freq[demod], intp->bw[demod]); | |
ce45264e | 1904 | |
a3a4f7e1 IL |
1905 | agc1_power = MAKEWORD(stv0900_get_bits(intp, AGCIQ_VALUE1), |
1906 | stv0900_get_bits(intp, AGCIQ_VALUE0)); | |
ce45264e | 1907 | |
a3a4f7e1 | 1908 | aq_power = 0; |
ce45264e | 1909 | |
a3a4f7e1 IL |
1910 | if (agc1_power == 0) { |
1911 | for (i = 0; i < 5; i++) | |
1912 | aq_power += (stv0900_get_bits(intp, POWER_I) + | |
1913 | stv0900_get_bits(intp, POWER_Q)) / 2; | |
ce45264e | 1914 | |
a3a4f7e1 IL |
1915 | aq_power /= 5; |
1916 | } | |
ce45264e | 1917 | |
a3a4f7e1 IL |
1918 | if ((agc1_power == 0) && (aq_power < IQPOWER_THRESHOLD)) { |
1919 | intp->result[demod].locked = FALSE; | |
1920 | signal_type = STV0900_NOAGC1; | |
1921 | dprintk("%s: NO AGC1, POWERI, POWERQ\n", __func__); | |
1922 | } else { | |
1923 | stv0900_write_bits(intp, SPECINV_CONTROL, | |
1924 | intp->srch_iq_inv[demod]); | |
1925 | if (intp->chip_id <= 0x20) /*cut 2.0*/ | |
1926 | stv0900_write_bits(intp, MANUALSX_ROLLOFF, 1); | |
1927 | else /*cut 3.0*/ | |
1928 | stv0900_write_bits(intp, MANUALS2_ROLLOFF, 1); | |
ce45264e | 1929 | |
a3a4f7e1 | 1930 | stv0900_set_search_standard(intp, demod); |
ce45264e | 1931 | |
a3a4f7e1 IL |
1932 | if (intp->srch_algo[demod] != STV0900_BLIND_SEARCH) |
1933 | stv0900_start_search(intp, demod); | |
ce45264e IL |
1934 | } |
1935 | ||
a3a4f7e1 IL |
1936 | if (signal_type == STV0900_NOAGC1) |
1937 | return signal_type; | |
1938 | ||
1939 | if (intp->chip_id == 0x12) { | |
1940 | stv0900_write_bits(intp, RST_HWARE, 0); | |
ce45264e | 1941 | msleep(3); |
a3a4f7e1 IL |
1942 | stv0900_write_bits(intp, RST_HWARE, 1); |
1943 | stv0900_write_bits(intp, RST_HWARE, 0); | |
ce45264e IL |
1944 | } |
1945 | ||
1946 | if (algo == STV0900_BLIND_SEARCH) | |
1947 | lock = stv0900_blind_search_algo(fe); | |
1948 | else if (algo == STV0900_COLD_START) | |
1949 | lock = stv0900_get_demod_cold_lock(fe, demod_timeout); | |
1950 | else if (algo == STV0900_WARM_START) | |
a3a4f7e1 | 1951 | lock = stv0900_get_demod_lock(intp, demod, demod_timeout); |
ce45264e IL |
1952 | |
1953 | if ((lock == FALSE) && (algo == STV0900_COLD_START)) { | |
1954 | if (low_sr == FALSE) { | |
a3a4f7e1 IL |
1955 | if (stv0900_check_timing_lock(intp, demod) == TRUE) |
1956 | lock = stv0900_sw_algo(intp, demod); | |
ce45264e IL |
1957 | } |
1958 | } | |
1959 | ||
1960 | if (lock == TRUE) | |
1961 | signal_type = stv0900_get_signal_params(fe); | |
1962 | ||
1963 | if ((lock == TRUE) && (signal_type == STV0900_RANGEOK)) { | |
1964 | stv0900_track_optimization(fe); | |
a3a4f7e1 IL |
1965 | if (intp->chip_id <= 0x11) { |
1966 | if ((stv0900_get_standard(fe, 0) == | |
1967 | STV0900_DVBS1_STANDARD) && | |
1968 | (stv0900_get_standard(fe, 1) == | |
1969 | STV0900_DVBS1_STANDARD)) { | |
ce45264e | 1970 | msleep(20); |
a3a4f7e1 | 1971 | stv0900_write_bits(intp, RST_HWARE, 0); |
ce45264e | 1972 | } else { |
a3a4f7e1 | 1973 | stv0900_write_bits(intp, RST_HWARE, 0); |
ce45264e | 1974 | msleep(3); |
a3a4f7e1 IL |
1975 | stv0900_write_bits(intp, RST_HWARE, 1); |
1976 | stv0900_write_bits(intp, RST_HWARE, 0); | |
ce45264e | 1977 | } |
a3a4f7e1 IL |
1978 | |
1979 | } else if (intp->chip_id >= 0x20) { | |
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 IL |
1984 | } |
1985 | ||
a3a4f7e1 IL |
1986 | if (stv0900_wait_for_lock(intp, demod, |
1987 | fec_timeout, fec_timeout) == TRUE) { | |
ce45264e | 1988 | lock = TRUE; |
a3a4f7e1 IL |
1989 | intp->result[demod].locked = TRUE; |
1990 | if (intp->result[demod].standard == | |
1991 | STV0900_DVBS2_STANDARD) { | |
1992 | stv0900_set_dvbs2_rolloff(intp, demod); | |
1993 | stv0900_write_bits(intp, RESET_UPKO_COUNT, 1); | |
1994 | stv0900_write_bits(intp, RESET_UPKO_COUNT, 0); | |
1995 | stv0900_write_reg(intp, ERRCTRL1, 0x67); | |
1996 | } else { | |
1997 | stv0900_write_reg(intp, ERRCTRL1, 0x75); | |
ce45264e | 1998 | } |
a3a4f7e1 IL |
1999 | |
2000 | stv0900_write_reg(intp, FBERCPT4, 0); | |
2001 | stv0900_write_reg(intp, ERRCTRL2, 0xc1); | |
ce45264e IL |
2002 | } else { |
2003 | lock = FALSE; | |
2004 | signal_type = STV0900_NODATA; | |
a3a4f7e1 IL |
2005 | no_signal = stv0900_check_signal_presence(intp, demod); |
2006 | ||
4e0b0036 | 2007 | intp->result[demod].locked = FALSE; |
ce45264e IL |
2008 | } |
2009 | } | |
2010 | ||
a3a4f7e1 IL |
2011 | if ((signal_type != STV0900_NODATA) || (no_signal != FALSE)) |
2012 | return signal_type; | |
ce45264e | 2013 | |
a3a4f7e1 IL |
2014 | if (intp->chip_id > 0x11) { |
2015 | intp->result[demod].locked = FALSE; | |
2016 | return signal_type; | |
ce45264e IL |
2017 | } |
2018 | ||
a3a4f7e1 IL |
2019 | if ((stv0900_get_bits(intp, HEADER_MODE) == STV0900_DVBS_FOUND) && |
2020 | (intp->srch_iq_inv[demod] <= STV0900_IQ_AUTO_NORMAL_FIRST)) | |
2021 | signal_type = stv0900_dvbs1_acq_workaround(fe); | |
2022 | ||
ce45264e IL |
2023 | return signal_type; |
2024 | } | |
2025 |