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26#include <linux/kernel.h>
27#include <linux/module.h>
28#include <linux/string.h>
29#include <linux/slab.h>
30#include <linux/i2c.h>
31
32#include "stv0900.h"
33#include "stv0900_reg.h"
34#include "stv0900_priv.h"
35#include "stv0900_init.h"
36
37int stvdebug = 1;
38module_param_named(debug, stvdebug, int, 0644);
39
40
41struct stv0900_inode {
42
43 struct stv0900_internal *internal;
44 struct stv0900_inode *next_inode;
45};
46
47
48static struct stv0900_inode *stv0900_first_inode;
49
50
51static struct stv0900_inode *find_inode(struct i2c_adapter *i2c_adap,
52 u8 i2c_addr)
53{
54 struct stv0900_inode *temp_chip = stv0900_first_inode;
55
56 if (temp_chip != NULL) {
57
58
59
60 while ((temp_chip != NULL) &&
61 ((temp_chip->internal->i2c_adap != i2c_adap) ||
62 (temp_chip->internal->i2c_addr != i2c_addr)))
63
64 temp_chip = temp_chip->next_inode;
65
66 }
67
68 return temp_chip;
69}
70
71
72static void remove_inode(struct stv0900_internal *internal)
73{
74 struct stv0900_inode *prev_node = stv0900_first_inode;
75 struct stv0900_inode *del_node = find_inode(internal->i2c_adap,
76 internal->i2c_addr);
77
78 if (del_node != NULL) {
79 if (del_node == stv0900_first_inode) {
80 stv0900_first_inode = del_node->next_inode;
81 } else {
82 while (prev_node->next_inode != del_node)
83 prev_node = prev_node->next_inode;
84
85 if (del_node->next_inode == NULL)
86 prev_node->next_inode = NULL;
87 else
88 prev_node->next_inode =
89 prev_node->next_inode->next_inode;
90 }
91
92 kfree(del_node);
93 }
94}
95
96
97static struct stv0900_inode *append_internal(struct stv0900_internal *internal)
98{
99 struct stv0900_inode *new_node = stv0900_first_inode;
100
101 if (new_node == NULL) {
102 new_node = kmalloc(sizeof(struct stv0900_inode), GFP_KERNEL);
103 stv0900_first_inode = new_node;
104 } else {
105 while (new_node->next_inode != NULL)
106 new_node = new_node->next_inode;
107
108 new_node->next_inode = kmalloc(sizeof(struct stv0900_inode),
109 GFP_KERNEL);
110 if (new_node->next_inode != NULL)
111 new_node = new_node->next_inode;
112 else
113 new_node = NULL;
114 }
115
116 if (new_node != NULL) {
117 new_node->internal = internal;
118 new_node->next_inode = NULL;
119 }
120
121 return new_node;
122}
123
124s32 ge2comp(s32 a, s32 width)
125{
126 if (width == 32)
127 return a;
128 else
129 return (a >= (1 << (width - 1))) ? (a - (1 << width)) : a;
130}
131
132void stv0900_write_reg(struct stv0900_internal *intp, u16 reg_addr,
133 u8 reg_data)
134{
135 u8 data[3];
136 int ret;
137 struct i2c_msg i2cmsg = {
138 .addr = intp->i2c_addr,
139 .flags = 0,
140 .len = 3,
141 .buf = data,
142 };
143
144 data[0] = MSB(reg_addr);
145 data[1] = LSB(reg_addr);
146 data[2] = reg_data;
147
148 ret = i2c_transfer(intp->i2c_adap, &i2cmsg, 1);
149 if (ret != 1)
150 dprintk("%s: i2c error %d\n", __func__, ret);
151}
152
153u8 stv0900_read_reg(struct stv0900_internal *intp, u16 reg)
154{
155 int ret;
156 u8 b0[] = { MSB(reg), LSB(reg) };
157 u8 buf = 0;
158 struct i2c_msg msg[] = {
159 {
160 .addr = intp->i2c_addr,
161 .flags = 0,
162 .buf = b0,
163 .len = 2,
164 }, {
165 .addr = intp->i2c_addr,
166 .flags = I2C_M_RD,
167 .buf = &buf,
168 .len = 1,
169 },
170 };
171
172 ret = i2c_transfer(intp->i2c_adap, msg, 2);
173 if (ret != 2)
174 dprintk("%s: i2c error %d, reg[0x%02x]\n",
175 __func__, ret, reg);
176
177 return buf;
178}
179
180static void extract_mask_pos(u32 label, u8 *mask, u8 *pos)
181{
182 u8 position = 0, i = 0;
183
184 (*mask) = label & 0xff;
185
186 while ((position == 0) && (i < 8)) {
187 position = ((*mask) >> i) & 0x01;
188 i++;
189 }
190
191 (*pos) = (i - 1);
192}
193
194void stv0900_write_bits(struct stv0900_internal *intp, u32 label, u8 val)
195{
196 u8 reg, mask, pos;
197
198 reg = stv0900_read_reg(intp, (label >> 16) & 0xffff);
199 extract_mask_pos(label, &mask, &pos);
200
201 val = mask & (val << pos);
202
203 reg = (reg & (~mask)) | val;
204 stv0900_write_reg(intp, (label >> 16) & 0xffff, reg);
205
206}
207
208u8 stv0900_get_bits(struct stv0900_internal *intp, u32 label)
209{
210 u8 val = 0xff;
211 u8 mask, pos;
212
213 extract_mask_pos(label, &mask, &pos);
214
215 val = stv0900_read_reg(intp, label >> 16);
216 val = (val & mask) >> pos;
217
218 return val;
219}
220
221static enum fe_stv0900_error stv0900_initialize(struct stv0900_internal *intp)
222{
223 s32 i;
224
225 if (intp == NULL)
226 return STV0900_INVALID_HANDLE;
227
228 intp->chip_id = stv0900_read_reg(intp, R0900_MID);
229
230 if (intp->errs != STV0900_NO_ERROR)
231 return intp->errs;
232
233
234 stv0900_write_reg(intp, R0900_P1_DMDISTATE, 0x5c);
235 stv0900_write_reg(intp, R0900_P2_DMDISTATE, 0x5c);
236 msleep(3);
237 stv0900_write_reg(intp, R0900_P1_TNRCFG, 0x6c);
238 stv0900_write_reg(intp, R0900_P2_TNRCFG, 0x6f);
239 stv0900_write_reg(intp, R0900_P1_I2CRPT, 0x20);
240 stv0900_write_reg(intp, R0900_P2_I2CRPT, 0x20);
241 stv0900_write_reg(intp, R0900_NCOARSE, 0x13);
242 msleep(3);
243 stv0900_write_reg(intp, R0900_I2CCFG, 0x08);
244
245 switch (intp->clkmode) {
246 case 0:
247 case 2:
248 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20
249 | intp->clkmode);
250 break;
251 default:
252
253 i = 0x02 & stv0900_read_reg(intp, R0900_SYNTCTRL);
254 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | i);
255 break;
256 }
257
258 msleep(3);
259 for (i = 0; i < 181; i++)
260 stv0900_write_reg(intp, STV0900_InitVal[i][0],
261 STV0900_InitVal[i][1]);
262
263 if (stv0900_read_reg(intp, R0900_MID) >= 0x20) {
264 stv0900_write_reg(intp, R0900_TSGENERAL, 0x0c);
265 for (i = 0; i < 32; i++)
266 stv0900_write_reg(intp, STV0900_Cut20_AddOnVal[i][0],
267 STV0900_Cut20_AddOnVal[i][1]);
268 }
269
270 stv0900_write_reg(intp, R0900_P1_FSPYCFG, 0x6c);
271 stv0900_write_reg(intp, R0900_P2_FSPYCFG, 0x6c);
272
273 stv0900_write_reg(intp, R0900_P1_PDELCTRL2, 0x01);
274 stv0900_write_reg(intp, R0900_P2_PDELCTRL2, 0x21);
275
276 stv0900_write_reg(intp, R0900_P1_PDELCTRL3, 0x20);
277 stv0900_write_reg(intp, R0900_P2_PDELCTRL3, 0x20);
278
279 stv0900_write_reg(intp, R0900_TSTRES0, 0x80);
280 stv0900_write_reg(intp, R0900_TSTRES0, 0x00);
281
282 return STV0900_NO_ERROR;
283}
284
285static u32 stv0900_get_mclk_freq(struct stv0900_internal *intp, u32 ext_clk)
286{
287 u32 mclk = 90000000, div = 0, ad_div = 0;
288
289 div = stv0900_get_bits(intp, F0900_M_DIV);
290 ad_div = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6);
291
292 mclk = (div + 1) * ext_clk / ad_div;
293
294 dprintk("%s: Calculated Mclk = %d\n", __func__, mclk);
295
296 return mclk;
297}
298
299static enum fe_stv0900_error stv0900_set_mclk(struct stv0900_internal *intp, u32 mclk)
300{
301 u32 m_div, clk_sel;
302
303 if (intp == NULL)
304 return STV0900_INVALID_HANDLE;
305
306 if (intp->errs)
307 return STV0900_I2C_ERROR;
308
309 dprintk("%s: Mclk set to %d, Quartz = %d\n", __func__, mclk,
310 intp->quartz);
311
312 clk_sel = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6);
313 m_div = ((clk_sel * mclk) / intp->quartz) - 1;
314 stv0900_write_bits(intp, F0900_M_DIV, m_div);
315 intp->mclk = stv0900_get_mclk_freq(intp,
316 intp->quartz);
317
318
319
320
321
322
323
324 m_div = intp->mclk / 704000;
325 stv0900_write_reg(intp, R0900_P1_F22TX, m_div);
326 stv0900_write_reg(intp, R0900_P1_F22RX, m_div);
327
328 stv0900_write_reg(intp, R0900_P2_F22TX, m_div);
329 stv0900_write_reg(intp, R0900_P2_F22RX, m_div);
330
331 if ((intp->errs))
332 return STV0900_I2C_ERROR;
333
334 return STV0900_NO_ERROR;
335}
336
337static u32 stv0900_get_err_count(struct stv0900_internal *intp, int cntr,
338 enum fe_stv0900_demod_num demod)
339{
340 u32 lsb, msb, hsb, err_val;
341
342 switch (cntr) {
343 case 0:
344 default:
345 hsb = stv0900_get_bits(intp, ERR_CNT12);
346 msb = stv0900_get_bits(intp, ERR_CNT11);
347 lsb = stv0900_get_bits(intp, ERR_CNT10);
348 break;
349 case 1:
350 hsb = stv0900_get_bits(intp, ERR_CNT22);
351 msb = stv0900_get_bits(intp, ERR_CNT21);
352 lsb = stv0900_get_bits(intp, ERR_CNT20);
353 break;
354 }
355
356 err_val = (hsb << 16) + (msb << 8) + (lsb);
357
358 return err_val;
359}
360
361static int stv0900_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
362{
363 struct stv0900_state *state = fe->demodulator_priv;
364 struct stv0900_internal *intp = state->internal;
365 enum fe_stv0900_demod_num demod = state->demod;
366
367 stv0900_write_bits(intp, I2CT_ON, enable);
368
369 return 0;
370}
371
372static void stv0900_set_ts_parallel_serial(struct stv0900_internal *intp,
373 enum fe_stv0900_clock_type path1_ts,
374 enum fe_stv0900_clock_type path2_ts)
375{
376
377 dprintk("%s\n", __func__);
378
379 if (intp->chip_id >= 0x20) {
380 switch (path1_ts) {
381 case STV0900_PARALLEL_PUNCT_CLOCK:
382 case STV0900_DVBCI_CLOCK:
383 switch (path2_ts) {
384 case STV0900_SERIAL_PUNCT_CLOCK:
385 case STV0900_SERIAL_CONT_CLOCK:
386 default:
387 stv0900_write_reg(intp, R0900_TSGENERAL,
388 0x00);
389 break;
390 case STV0900_PARALLEL_PUNCT_CLOCK:
391 case STV0900_DVBCI_CLOCK:
392 stv0900_write_reg(intp, R0900_TSGENERAL,
393 0x06);
394 stv0900_write_bits(intp,
395 F0900_P1_TSFIFO_MANSPEED, 3);
396 stv0900_write_bits(intp,
397 F0900_P2_TSFIFO_MANSPEED, 0);
398 stv0900_write_reg(intp,
399 R0900_P1_TSSPEED, 0x14);
400 stv0900_write_reg(intp,
401 R0900_P2_TSSPEED, 0x28);
402 break;
403 }
404 break;
405 case STV0900_SERIAL_PUNCT_CLOCK:
406 case STV0900_SERIAL_CONT_CLOCK:
407 default:
408 switch (path2_ts) {
409 case STV0900_SERIAL_PUNCT_CLOCK:
410 case STV0900_SERIAL_CONT_CLOCK:
411 default:
412 stv0900_write_reg(intp,
413 R0900_TSGENERAL, 0x0C);
414 break;
415 case STV0900_PARALLEL_PUNCT_CLOCK:
416 case STV0900_DVBCI_CLOCK:
417 stv0900_write_reg(intp,
418 R0900_TSGENERAL, 0x0A);
419 dprintk("%s: 0x0a\n", __func__);
420 break;
421 }
422 break;
423 }
424 } else {
425 switch (path1_ts) {
426 case STV0900_PARALLEL_PUNCT_CLOCK:
427 case STV0900_DVBCI_CLOCK:
428 switch (path2_ts) {
429 case STV0900_SERIAL_PUNCT_CLOCK:
430 case STV0900_SERIAL_CONT_CLOCK:
431 default:
432 stv0900_write_reg(intp, R0900_TSGENERAL1X,
433 0x10);
434 break;
435 case STV0900_PARALLEL_PUNCT_CLOCK:
436 case STV0900_DVBCI_CLOCK:
437 stv0900_write_reg(intp, R0900_TSGENERAL1X,
438 0x16);
439 stv0900_write_bits(intp,
440 F0900_P1_TSFIFO_MANSPEED, 3);
441 stv0900_write_bits(intp,
442 F0900_P2_TSFIFO_MANSPEED, 0);
443 stv0900_write_reg(intp, R0900_P1_TSSPEED,
444 0x14);
445 stv0900_write_reg(intp, R0900_P2_TSSPEED,
446 0x28);
447 break;
448 }
449
450 break;
451 case STV0900_SERIAL_PUNCT_CLOCK:
452 case STV0900_SERIAL_CONT_CLOCK:
453 default:
454 switch (path2_ts) {
455 case STV0900_SERIAL_PUNCT_CLOCK:
456 case STV0900_SERIAL_CONT_CLOCK:
457 default:
458 stv0900_write_reg(intp, R0900_TSGENERAL1X,
459 0x14);
460 break;
461 case STV0900_PARALLEL_PUNCT_CLOCK:
462 case STV0900_DVBCI_CLOCK:
463 stv0900_write_reg(intp, R0900_TSGENERAL1X,
464 0x12);
465 dprintk("%s: 0x12\n", __func__);
466 break;
467 }
468
469 break;
470 }
471 }
472
473 switch (path1_ts) {
474 case STV0900_PARALLEL_PUNCT_CLOCK:
475 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x00);
476 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x00);
477 break;
478 case STV0900_DVBCI_CLOCK:
479 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x00);
480 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x01);
481 break;
482 case STV0900_SERIAL_PUNCT_CLOCK:
483 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x01);
484 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x00);
485 break;
486 case STV0900_SERIAL_CONT_CLOCK:
487 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x01);
488 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x01);
489 break;
490 default:
491 break;
492 }
493
494 switch (path2_ts) {
495 case STV0900_PARALLEL_PUNCT_CLOCK:
496 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x00);
497 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x00);
498 break;
499 case STV0900_DVBCI_CLOCK:
500 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x00);
501 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x01);
502 break;
503 case STV0900_SERIAL_PUNCT_CLOCK:
504 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x01);
505 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x00);
506 break;
507 case STV0900_SERIAL_CONT_CLOCK:
508 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x01);
509 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x01);
510 break;
511 default:
512 break;
513 }
514
515 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 1);
516 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 0);
517 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 1);
518 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 0);
519}
520
521void stv0900_set_tuner(struct dvb_frontend *fe, u32 frequency,
522 u32 bandwidth)
523{
524 struct dvb_frontend_ops *frontend_ops = NULL;
525 struct dvb_tuner_ops *tuner_ops = NULL;
526
527 frontend_ops = &fe->ops;
528 tuner_ops = &frontend_ops->tuner_ops;
529
530 if (tuner_ops->set_frequency) {
531 if ((tuner_ops->set_frequency(fe, frequency)) < 0)
532 dprintk("%s: Invalid parameter\n", __func__);
533 else
534 dprintk("%s: Frequency=%d\n", __func__, frequency);
535
536 }
537
538 if (tuner_ops->set_bandwidth) {
539 if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0)
540 dprintk("%s: Invalid parameter\n", __func__);
541 else
542 dprintk("%s: Bandwidth=%d\n", __func__, bandwidth);
543
544 }
545}
546
547void stv0900_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
548{
549 struct dvb_frontend_ops *frontend_ops = NULL;
550 struct dvb_tuner_ops *tuner_ops = NULL;
551
552 frontend_ops = &fe->ops;
553 tuner_ops = &frontend_ops->tuner_ops;
554
555 if (tuner_ops->set_bandwidth) {
556 if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0)
557 dprintk("%s: Invalid parameter\n", __func__);
558 else
559 dprintk("%s: Bandwidth=%d\n", __func__, bandwidth);
560
561 }
562}
563
564u32 stv0900_get_freq_auto(struct stv0900_internal *intp, int demod)
565{
566 u32 freq, round;
567
568
569
570
571
572 freq = (stv0900_get_bits(intp, TUN_RFFREQ2) << 10) +
573 (stv0900_get_bits(intp, TUN_RFFREQ1) << 2) +
574 stv0900_get_bits(intp, TUN_RFFREQ0);
575
576 freq = (freq * 1000) / 64;
577
578 round = (stv0900_get_bits(intp, TUN_RFRESTE1) >> 2) +
579 stv0900_get_bits(intp, TUN_RFRESTE0);
580
581 round = (round * 1000) / 2048;
582
583 return freq + round;
584}
585
586void stv0900_set_tuner_auto(struct stv0900_internal *intp, u32 Frequency,
587 u32 Bandwidth, int demod)
588{
589 u32 tunerFrequency;
590
591
592
593 tunerFrequency = (Frequency * 64) / 1000;
594
595 stv0900_write_bits(intp, TUN_RFFREQ2, (tunerFrequency >> 10));
596 stv0900_write_bits(intp, TUN_RFFREQ1, (tunerFrequency >> 2) & 0xff);
597 stv0900_write_bits(intp, TUN_RFFREQ0, (tunerFrequency & 0x03));
598
599 stv0900_write_bits(intp, TUN_BW, Bandwidth / 2000000);
600
601 stv0900_write_reg(intp, TNRLD, 1);
602}
603
604static s32 stv0900_get_rf_level(struct stv0900_internal *intp,
605 const struct stv0900_table *lookup,
606 enum fe_stv0900_demod_num demod)
607{
608 s32 agc_gain = 0,
609 imin,
610 imax,
611 i,
612 rf_lvl = 0;
613
614 dprintk("%s\n", __func__);
615
616 if ((lookup == NULL) || (lookup->size <= 0))
617 return 0;
618
619 agc_gain = MAKEWORD(stv0900_get_bits(intp, AGCIQ_VALUE1),
620 stv0900_get_bits(intp, AGCIQ_VALUE0));
621
622 imin = 0;
623 imax = lookup->size - 1;
624 if (INRANGE(lookup->table[imin].regval, agc_gain,
625 lookup->table[imax].regval)) {
626 while ((imax - imin) > 1) {
627 i = (imax + imin) >> 1;
628
629 if (INRANGE(lookup->table[imin].regval,
630 agc_gain,
631 lookup->table[i].regval))
632 imax = i;
633 else
634 imin = i;
635 }
636
637 rf_lvl = (s32)agc_gain - lookup->table[imin].regval;
638 rf_lvl *= (lookup->table[imax].realval -
639 lookup->table[imin].realval);
640 rf_lvl /= (lookup->table[imax].regval -
641 lookup->table[imin].regval);
642 rf_lvl += lookup->table[imin].realval;
643 } else if (agc_gain > lookup->table[0].regval)
644 rf_lvl = 5;
645 else if (agc_gain < lookup->table[lookup->size-1].regval)
646 rf_lvl = -100;
647
648 dprintk("%s: RFLevel = %d\n", __func__, rf_lvl);
649
650 return rf_lvl;
651}
652
653static int stv0900_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
654{
655 struct stv0900_state *state = fe->demodulator_priv;
656 struct stv0900_internal *internal = state->internal;
657 s32 rflevel = stv0900_get_rf_level(internal, &stv0900_rf,
658 state->demod);
659
660 rflevel = (rflevel + 100) * (65535 / 70);
661 if (rflevel < 0)
662 rflevel = 0;
663
664 if (rflevel > 65535)
665 rflevel = 65535;
666
667 *strength = rflevel;
668
669 return 0;
670}
671
672static s32 stv0900_carr_get_quality(struct dvb_frontend *fe,
673 const struct stv0900_table *lookup)
674{
675 struct stv0900_state *state = fe->demodulator_priv;
676 struct stv0900_internal *intp = state->internal;
677 enum fe_stv0900_demod_num demod = state->demod;
678
679 s32 c_n = -100,
680 regval,
681 imin,
682 imax,
683 i,
684 noise_field1,
685 noise_field0;
686
687 dprintk("%s\n", __func__);
688
689 if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
690 noise_field1 = NOSPLHT_NORMED1;
691 noise_field0 = NOSPLHT_NORMED0;
692 } else {
693 noise_field1 = NOSDATAT_NORMED1;
694 noise_field0 = NOSDATAT_NORMED0;
695 }
696
697 if (stv0900_get_bits(intp, LOCK_DEFINITIF)) {
698 if ((lookup != NULL) && lookup->size) {
699 regval = 0;
700 msleep(5);
701 for (i = 0; i < 16; i++) {
702 regval += MAKEWORD(stv0900_get_bits(intp,
703 noise_field1),
704 stv0900_get_bits(intp,
705 noise_field0));
706 msleep(1);
707 }
708
709 regval /= 16;
710 imin = 0;
711 imax = lookup->size - 1;
712 if (INRANGE(lookup->table[imin].regval,
713 regval,
714 lookup->table[imax].regval)) {
715 while ((imax - imin) > 1) {
716 i = (imax + imin) >> 1;
717 if (INRANGE(lookup->table[imin].regval,
718 regval,
719 lookup->table[i].regval))
720 imax = i;
721 else
722 imin = i;
723 }
724
725 c_n = ((regval - lookup->table[imin].regval)
726 * (lookup->table[imax].realval
727 - lookup->table[imin].realval)
728 / (lookup->table[imax].regval
729 - lookup->table[imin].regval))
730 + lookup->table[imin].realval;
731 } else if (regval < lookup->table[imin].regval)
732 c_n = 1000;
733 }
734 }
735
736 return c_n;
737}
738
739static int stv0900_read_ucblocks(struct dvb_frontend *fe, u32 * ucblocks)
740{
741 struct stv0900_state *state = fe->demodulator_priv;
742 struct stv0900_internal *intp = state->internal;
743 enum fe_stv0900_demod_num demod = state->demod;
744 u8 err_val1, err_val0;
745 u32 header_err_val = 0;
746
747 *ucblocks = 0x0;
748 if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
749
750
751
752 err_val1 = stv0900_read_reg(intp, BBFCRCKO1);
753 err_val0 = stv0900_read_reg(intp, BBFCRCKO0);
754 header_err_val = (err_val1 << 8) | err_val0;
755
756
757 err_val1 = stv0900_read_reg(intp, UPCRCKO1);
758 err_val0 = stv0900_read_reg(intp, UPCRCKO0);
759 *ucblocks = (err_val1 << 8) | err_val0;
760 *ucblocks += header_err_val;
761 }
762
763 return 0;
764}
765
766static int stv0900_read_snr(struct dvb_frontend *fe, u16 *snr)
767{
768 s32 snrlcl = stv0900_carr_get_quality(fe,
769 (const struct stv0900_table *)&stv0900_s2_cn);
770 snrlcl = (snrlcl + 30) * 384;
771 if (snrlcl < 0)
772 snrlcl = 0;
773
774 if (snrlcl > 65535)
775 snrlcl = 65535;
776
777 *snr = snrlcl;
778
779 return 0;
780}
781
782static u32 stv0900_get_ber(struct stv0900_internal *intp,
783 enum fe_stv0900_demod_num demod)
784{
785 u32 ber = 10000000, i;
786 s32 demod_state;
787
788 demod_state = stv0900_get_bits(intp, HEADER_MODE);
789
790 switch (demod_state) {
791 case STV0900_SEARCH:
792 case STV0900_PLH_DETECTED:
793 default:
794 ber = 10000000;
795 break;
796 case STV0900_DVBS_FOUND:
797 ber = 0;
798 for (i = 0; i < 5; i++) {
799 msleep(5);
800 ber += stv0900_get_err_count(intp, 0, demod);
801 }
802
803 ber /= 5;
804 if (stv0900_get_bits(intp, PRFVIT)) {
805 ber *= 9766;
806 ber = ber >> 13;
807 }
808
809 break;
810 case STV0900_DVBS2_FOUND:
811 ber = 0;
812 for (i = 0; i < 5; i++) {
813 msleep(5);
814 ber += stv0900_get_err_count(intp, 0, demod);
815 }
816
817 ber /= 5;
818 if (stv0900_get_bits(intp, PKTDELIN_LOCK)) {
819 ber *= 9766;
820 ber = ber >> 13;
821 }
822
823 break;
824 }
825
826 return ber;
827}
828
829static int stv0900_read_ber(struct dvb_frontend *fe, u32 *ber)
830{
831 struct stv0900_state *state = fe->demodulator_priv;
832 struct stv0900_internal *internal = state->internal;
833
834 *ber = stv0900_get_ber(internal, state->demod);
835
836 return 0;
837}
838
839int stv0900_get_demod_lock(struct stv0900_internal *intp,
840 enum fe_stv0900_demod_num demod, s32 time_out)
841{
842 s32 timer = 0,
843 lock = 0;
844
845 enum fe_stv0900_search_state dmd_state;
846
847 while ((timer < time_out) && (lock == 0)) {
848 dmd_state = stv0900_get_bits(intp, HEADER_MODE);
849 dprintk("Demod State = %d\n", dmd_state);
850 switch (dmd_state) {
851 case STV0900_SEARCH:
852 case STV0900_PLH_DETECTED:
853 default:
854 lock = 0;
855 break;
856 case STV0900_DVBS2_FOUND:
857 case STV0900_DVBS_FOUND:
858 lock = stv0900_get_bits(intp, LOCK_DEFINITIF);
859 break;
860 }
861
862 if (lock == 0)
863 msleep(10);
864
865 timer += 10;
866 }
867
868 if (lock)
869 dprintk("DEMOD LOCK OK\n");
870 else
871 dprintk("DEMOD LOCK FAIL\n");
872
873 return lock;
874}
875
876void stv0900_stop_all_s2_modcod(struct stv0900_internal *intp,
877 enum fe_stv0900_demod_num demod)
878{
879 s32 regflist,
880 i;
881
882 dprintk("%s\n", __func__);
883
884 regflist = MODCODLST0;
885
886 for (i = 0; i < 16; i++)
887 stv0900_write_reg(intp, regflist + i, 0xff);
888}
889
890void stv0900_activate_s2_modcod(struct stv0900_internal *intp,
891 enum fe_stv0900_demod_num demod)
892{
893 u32 matype,
894 mod_code,
895 fmod,
896 reg_index,
897 field_index;
898
899 dprintk("%s\n", __func__);
900
901 if (intp->chip_id <= 0x11) {
902 msleep(5);
903
904 mod_code = stv0900_read_reg(intp, PLHMODCOD);
905 matype = mod_code & 0x3;
906 mod_code = (mod_code & 0x7f) >> 2;
907
908 reg_index = MODCODLSTF - mod_code / 2;
909 field_index = mod_code % 2;
910
911 switch (matype) {
912 case 0:
913 default:
914 fmod = 14;
915 break;
916 case 1:
917 fmod = 13;
918 break;
919 case 2:
920 fmod = 11;
921 break;
922 case 3:
923 fmod = 7;
924 break;
925 }
926
927 if ((INRANGE(STV0900_QPSK_12, mod_code, STV0900_8PSK_910))
928 && (matype <= 1)) {
929 if (field_index == 0)
930 stv0900_write_reg(intp, reg_index,
931 0xf0 | fmod);
932 else
933 stv0900_write_reg(intp, reg_index,
934 (fmod << 4) | 0xf);
935 }
936
937 } else if (intp->chip_id >= 0x12) {
938 for (reg_index = 0; reg_index < 7; reg_index++)
939 stv0900_write_reg(intp, MODCODLST0 + reg_index, 0xff);
940
941 stv0900_write_reg(intp, MODCODLSTE, 0xff);
942 stv0900_write_reg(intp, MODCODLSTF, 0xcf);
943 for (reg_index = 0; reg_index < 8; reg_index++)
944 stv0900_write_reg(intp, MODCODLST7 + reg_index, 0xcc);
945
946
947 }
948}
949
950void stv0900_activate_s2_modcod_single(struct stv0900_internal *intp,
951 enum fe_stv0900_demod_num demod)
952{
953 u32 reg_index;
954
955 dprintk("%s\n", __func__);
956
957 stv0900_write_reg(intp, MODCODLST0, 0xff);
958 stv0900_write_reg(intp, MODCODLST1, 0xf0);
959 stv0900_write_reg(intp, MODCODLSTF, 0x0f);
960 for (reg_index = 0; reg_index < 13; reg_index++)
961 stv0900_write_reg(intp, MODCODLST2 + reg_index, 0);
962
963}
964
965static enum dvbfe_algo stv0900_frontend_algo(struct dvb_frontend *fe)
966{
967 return DVBFE_ALGO_CUSTOM;
968}
969
970void stv0900_start_search(struct stv0900_internal *intp,
971 enum fe_stv0900_demod_num demod)
972{
973 u32 freq;
974 s16 freq_s16 ;
975
976 stv0900_write_bits(intp, DEMOD_MODE, 0x1f);
977 if (intp->chip_id == 0x10)
978 stv0900_write_reg(intp, CORRELEXP, 0xaa);
979
980 if (intp->chip_id < 0x20)
981 stv0900_write_reg(intp, CARHDR, 0x55);
982
983 if (intp->chip_id <= 0x20) {
984 if (intp->symbol_rate[0] <= 5000000) {
985 stv0900_write_reg(intp, CARCFG, 0x44);
986 stv0900_write_reg(intp, CFRUP1, 0x0f);
987 stv0900_write_reg(intp, CFRUP0, 0xff);
988 stv0900_write_reg(intp, CFRLOW1, 0xf0);
989 stv0900_write_reg(intp, CFRLOW0, 0x00);
990 stv0900_write_reg(intp, RTCS2, 0x68);
991 } else {
992 stv0900_write_reg(intp, CARCFG, 0xc4);
993 stv0900_write_reg(intp, RTCS2, 0x44);
994 }
995
996 } else {
997 if (intp->symbol_rate[demod] <= 5000000)
998 stv0900_write_reg(intp, RTCS2, 0x68);
999 else
1000 stv0900_write_reg(intp, RTCS2, 0x44);
1001
1002 stv0900_write_reg(intp, CARCFG, 0x46);
1003 if (intp->srch_algo[demod] == STV0900_WARM_START) {
1004 freq = 1000 << 16;
1005 freq /= (intp->mclk / 1000);
1006 freq_s16 = (s16)freq;
1007 } else {
1008 freq = (intp->srch_range[demod] / 2000);
1009 if (intp->symbol_rate[demod] <= 5000000)
1010 freq += 80;
1011 else
1012 freq += 600;
1013
1014 freq = freq << 16;
1015 freq /= (intp->mclk / 1000);
1016 freq_s16 = (s16)freq;
1017 }
1018
1019 stv0900_write_bits(intp, CFR_UP1, MSB(freq_s16));
1020 stv0900_write_bits(intp, CFR_UP0, LSB(freq_s16));
1021 freq_s16 *= (-1);
1022 stv0900_write_bits(intp, CFR_LOW1, MSB(freq_s16));
1023 stv0900_write_bits(intp, CFR_LOW0, LSB(freq_s16));
1024 }
1025
1026 stv0900_write_reg(intp, CFRINIT1, 0);
1027 stv0900_write_reg(intp, CFRINIT0, 0);
1028
1029 if (intp->chip_id >= 0x20) {
1030 stv0900_write_reg(intp, EQUALCFG, 0x41);
1031 stv0900_write_reg(intp, FFECFG, 0x41);
1032
1033 if ((intp->srch_standard[demod] == STV0900_SEARCH_DVBS1) ||
1034 (intp->srch_standard[demod] == STV0900_SEARCH_DSS) ||
1035 (intp->srch_standard[demod] == STV0900_AUTO_SEARCH)) {
1036 stv0900_write_reg(intp, VITSCALE,
1037 0x82);
1038 stv0900_write_reg(intp, VAVSRVIT, 0x0);
1039 }
1040 }
1041
1042 stv0900_write_reg(intp, SFRSTEP, 0x00);
1043 stv0900_write_reg(intp, TMGTHRISE, 0xe0);
1044 stv0900_write_reg(intp, TMGTHFALL, 0xc0);
1045 stv0900_write_bits(intp, SCAN_ENABLE, 0);
1046 stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
1047 stv0900_write_bits(intp, S1S2_SEQUENTIAL, 0);
1048 stv0900_write_reg(intp, RTC, 0x88);
1049 if (intp->chip_id >= 0x20) {
1050 if (intp->symbol_rate[demod] < 2000000) {
1051 if (intp->chip_id <= 0x20)
1052 stv0900_write_reg(intp, CARFREQ, 0x39);
1053 else
1054 stv0900_write_reg(intp, CARFREQ, 0x89);
1055
1056 stv0900_write_reg(intp, CARHDR, 0x40);
1057 } else if (intp->symbol_rate[demod] < 10000000) {
1058 stv0900_write_reg(intp, CARFREQ, 0x4c);
1059 stv0900_write_reg(intp, CARHDR, 0x20);
1060 } else {
1061 stv0900_write_reg(intp, CARFREQ, 0x4b);
1062 stv0900_write_reg(intp, CARHDR, 0x20);
1063 }
1064
1065 } else {
1066 if (intp->symbol_rate[demod] < 10000000)
1067 stv0900_write_reg(intp, CARFREQ, 0xef);
1068 else
1069 stv0900_write_reg(intp, CARFREQ, 0xed);
1070 }
1071
1072 switch (intp->srch_algo[demod]) {
1073 case STV0900_WARM_START:
1074 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1075 stv0900_write_reg(intp, DMDISTATE, 0x18);
1076 break;
1077 case STV0900_COLD_START:
1078 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1079 stv0900_write_reg(intp, DMDISTATE, 0x15);
1080 break;
1081 default:
1082 break;
1083 }
1084}
1085
1086u8 stv0900_get_optim_carr_loop(s32 srate, enum fe_stv0900_modcode modcode,
1087 s32 pilot, u8 chip_id)
1088{
1089 u8 aclc_value = 0x29;
1090 s32 i, cllas2_size;
1091 const struct stv0900_car_loop_optim *cls2, *cllqs2, *cllas2;
1092
1093 dprintk("%s\n", __func__);
1094
1095 if (chip_id <= 0x12) {
1096 cls2 = FE_STV0900_S2CarLoop;
1097 cllqs2 = FE_STV0900_S2LowQPCarLoopCut30;
1098 cllas2 = FE_STV0900_S2APSKCarLoopCut30;
1099 cllas2_size = ARRAY_SIZE(FE_STV0900_S2APSKCarLoopCut30);
1100 } else if (chip_id == 0x20) {
1101 cls2 = FE_STV0900_S2CarLoopCut20;
1102 cllqs2 = FE_STV0900_S2LowQPCarLoopCut20;
1103 cllas2 = FE_STV0900_S2APSKCarLoopCut20;
1104 cllas2_size = ARRAY_SIZE(FE_STV0900_S2APSKCarLoopCut20);
1105 } else {
1106 cls2 = FE_STV0900_S2CarLoopCut30;
1107 cllqs2 = FE_STV0900_S2LowQPCarLoopCut30;
1108 cllas2 = FE_STV0900_S2APSKCarLoopCut30;
1109 cllas2_size = ARRAY_SIZE(FE_STV0900_S2APSKCarLoopCut30);
1110 }
1111
1112 if (modcode < STV0900_QPSK_12) {
1113 i = 0;
1114 while ((i < 3) && (modcode != cllqs2[i].modcode))
1115 i++;
1116
1117 if (i >= 3)
1118 i = 2;
1119 } else {
1120 i = 0;
1121 while ((i < 14) && (modcode != cls2[i].modcode))
1122 i++;
1123
1124 if (i >= 14) {
1125 i = 0;
1126 while ((i < 11) && (modcode != cllas2[i].modcode))
1127 i++;
1128
1129 if (i >= 11)
1130 i = 10;
1131 }
1132 }
1133
1134 if (modcode <= STV0900_QPSK_25) {
1135 if (pilot) {
1136 if (srate <= 3000000)
1137 aclc_value = cllqs2[i].car_loop_pilots_on_2;
1138 else if (srate <= 7000000)
1139 aclc_value = cllqs2[i].car_loop_pilots_on_5;
1140 else if (srate <= 15000000)
1141 aclc_value = cllqs2[i].car_loop_pilots_on_10;
1142 else if (srate <= 25000000)
1143 aclc_value = cllqs2[i].car_loop_pilots_on_20;
1144 else
1145 aclc_value = cllqs2[i].car_loop_pilots_on_30;
1146 } else {
1147 if (srate <= 3000000)
1148 aclc_value = cllqs2[i].car_loop_pilots_off_2;
1149 else if (srate <= 7000000)
1150 aclc_value = cllqs2[i].car_loop_pilots_off_5;
1151 else if (srate <= 15000000)
1152 aclc_value = cllqs2[i].car_loop_pilots_off_10;
1153 else if (srate <= 25000000)
1154 aclc_value = cllqs2[i].car_loop_pilots_off_20;
1155 else
1156 aclc_value = cllqs2[i].car_loop_pilots_off_30;
1157 }
1158
1159 } else if (modcode <= STV0900_8PSK_910) {
1160 if (pilot) {
1161 if (srate <= 3000000)
1162 aclc_value = cls2[i].car_loop_pilots_on_2;
1163 else if (srate <= 7000000)
1164 aclc_value = cls2[i].car_loop_pilots_on_5;
1165 else if (srate <= 15000000)
1166 aclc_value = cls2[i].car_loop_pilots_on_10;
1167 else if (srate <= 25000000)
1168 aclc_value = cls2[i].car_loop_pilots_on_20;
1169 else
1170 aclc_value = cls2[i].car_loop_pilots_on_30;
1171 } else {
1172 if (srate <= 3000000)
1173 aclc_value = cls2[i].car_loop_pilots_off_2;
1174 else if (srate <= 7000000)
1175 aclc_value = cls2[i].car_loop_pilots_off_5;
1176 else if (srate <= 15000000)
1177 aclc_value = cls2[i].car_loop_pilots_off_10;
1178 else if (srate <= 25000000)
1179 aclc_value = cls2[i].car_loop_pilots_off_20;
1180 else
1181 aclc_value = cls2[i].car_loop_pilots_off_30;
1182 }
1183
1184 } else if (i < cllas2_size) {
1185 if (srate <= 3000000)
1186 aclc_value = cllas2[i].car_loop_pilots_on_2;
1187 else if (srate <= 7000000)
1188 aclc_value = cllas2[i].car_loop_pilots_on_5;
1189 else if (srate <= 15000000)
1190 aclc_value = cllas2[i].car_loop_pilots_on_10;
1191 else if (srate <= 25000000)
1192 aclc_value = cllas2[i].car_loop_pilots_on_20;
1193 else
1194 aclc_value = cllas2[i].car_loop_pilots_on_30;
1195 }
1196
1197 return aclc_value;
1198}
1199
1200u8 stv0900_get_optim_short_carr_loop(s32 srate,
1201 enum fe_stv0900_modulation modulation,
1202 u8 chip_id)
1203{
1204 const struct stv0900_short_frames_car_loop_optim *s2scl;
1205 const struct stv0900_short_frames_car_loop_optim_vs_mod *s2sclc30;
1206 s32 mod_index = 0;
1207 u8 aclc_value = 0x0b;
1208
1209 dprintk("%s\n", __func__);
1210
1211 s2scl = FE_STV0900_S2ShortCarLoop;
1212 s2sclc30 = FE_STV0900_S2ShortCarLoopCut30;
1213
1214 switch (modulation) {
1215 case STV0900_QPSK:
1216 default:
1217 mod_index = 0;
1218 break;
1219 case STV0900_8PSK:
1220 mod_index = 1;
1221 break;
1222 case STV0900_16APSK:
1223 mod_index = 2;
1224 break;
1225 case STV0900_32APSK:
1226 mod_index = 3;
1227 break;
1228 }
1229
1230 if (chip_id >= 0x30) {
1231 if (srate <= 3000000)
1232 aclc_value = s2sclc30[mod_index].car_loop_2;
1233 else if (srate <= 7000000)
1234 aclc_value = s2sclc30[mod_index].car_loop_5;
1235 else if (srate <= 15000000)
1236 aclc_value = s2sclc30[mod_index].car_loop_10;
1237 else if (srate <= 25000000)
1238 aclc_value = s2sclc30[mod_index].car_loop_20;
1239 else
1240 aclc_value = s2sclc30[mod_index].car_loop_30;
1241
1242 } else if (chip_id >= 0x20) {
1243 if (srate <= 3000000)
1244 aclc_value = s2scl[mod_index].car_loop_cut20_2;
1245 else if (srate <= 7000000)
1246 aclc_value = s2scl[mod_index].car_loop_cut20_5;
1247 else if (srate <= 15000000)
1248 aclc_value = s2scl[mod_index].car_loop_cut20_10;
1249 else if (srate <= 25000000)
1250 aclc_value = s2scl[mod_index].car_loop_cut20_20;
1251 else
1252 aclc_value = s2scl[mod_index].car_loop_cut20_30;
1253
1254 } else {
1255 if (srate <= 3000000)
1256 aclc_value = s2scl[mod_index].car_loop_cut12_2;
1257 else if (srate <= 7000000)
1258 aclc_value = s2scl[mod_index].car_loop_cut12_5;
1259 else if (srate <= 15000000)
1260 aclc_value = s2scl[mod_index].car_loop_cut12_10;
1261 else if (srate <= 25000000)
1262 aclc_value = s2scl[mod_index].car_loop_cut12_20;
1263 else
1264 aclc_value = s2scl[mod_index].car_loop_cut12_30;
1265
1266 }
1267
1268 return aclc_value;
1269}
1270
1271static
1272enum fe_stv0900_error stv0900_st_dvbs2_single(struct stv0900_internal *intp,
1273 enum fe_stv0900_demod_mode LDPC_Mode,
1274 enum fe_stv0900_demod_num demod)
1275{
1276 s32 reg_ind;
1277
1278 dprintk("%s\n", __func__);
1279
1280 switch (LDPC_Mode) {
1281 case STV0900_DUAL:
1282 default:
1283 if ((intp->demod_mode != STV0900_DUAL)
1284 || (stv0900_get_bits(intp, F0900_DDEMOD) != 1)) {
1285 stv0900_write_reg(intp, R0900_GENCFG, 0x1d);
1286
1287 intp->demod_mode = STV0900_DUAL;
1288
1289 stv0900_write_bits(intp, F0900_FRESFEC, 1);
1290 stv0900_write_bits(intp, F0900_FRESFEC, 0);
1291
1292 for (reg_ind = 0; reg_ind < 7; reg_ind++)
1293 stv0900_write_reg(intp,
1294 R0900_P1_MODCODLST0 + reg_ind,
1295 0xff);
1296 for (reg_ind = 0; reg_ind < 8; reg_ind++)
1297 stv0900_write_reg(intp,
1298 R0900_P1_MODCODLST7 + reg_ind,
1299 0xcc);
1300
1301 stv0900_write_reg(intp, R0900_P1_MODCODLSTE, 0xff);
1302 stv0900_write_reg(intp, R0900_P1_MODCODLSTF, 0xcf);
1303
1304 for (reg_ind = 0; reg_ind < 7; reg_ind++)
1305 stv0900_write_reg(intp,
1306 R0900_P2_MODCODLST0 + reg_ind,
1307 0xff);
1308 for (reg_ind = 0; reg_ind < 8; reg_ind++)
1309 stv0900_write_reg(intp,
1310 R0900_P2_MODCODLST7 + reg_ind,
1311 0xcc);
1312
1313 stv0900_write_reg(intp, R0900_P2_MODCODLSTE, 0xff);
1314 stv0900_write_reg(intp, R0900_P2_MODCODLSTF, 0xcf);
1315 }
1316
1317 break;
1318 case STV0900_SINGLE:
1319 if (demod == STV0900_DEMOD_2) {
1320 stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_1);
1321 stv0900_activate_s2_modcod_single(intp,
1322 STV0900_DEMOD_2);
1323 stv0900_write_reg(intp, R0900_GENCFG, 0x06);
1324 } else {
1325 stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_2);
1326 stv0900_activate_s2_modcod_single(intp,
1327 STV0900_DEMOD_1);
1328 stv0900_write_reg(intp, R0900_GENCFG, 0x04);
1329 }
1330
1331 intp->demod_mode = STV0900_SINGLE;
1332
1333 stv0900_write_bits(intp, F0900_FRESFEC, 1);
1334 stv0900_write_bits(intp, F0900_FRESFEC, 0);
1335 stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 1);
1336 stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 0);
1337 stv0900_write_bits(intp, F0900_P2_ALGOSWRST, 1);
1338 stv0900_write_bits(intp, F0900_P2_ALGOSWRST, 0);
1339 break;
1340 }
1341
1342 return STV0900_NO_ERROR;
1343}
1344
1345static enum fe_stv0900_error stv0900_init_internal(struct dvb_frontend *fe,
1346 struct stv0900_init_params *p_init)
1347{
1348 struct stv0900_state *state = fe->demodulator_priv;
1349 enum fe_stv0900_error error = STV0900_NO_ERROR;
1350 enum fe_stv0900_error demodError = STV0900_NO_ERROR;
1351 struct stv0900_internal *intp = NULL;
1352 int selosci, i;
1353
1354 struct stv0900_inode *temp_int = find_inode(state->i2c_adap,
1355 state->config->demod_address);
1356
1357 dprintk("%s\n", __func__);
1358
1359 if ((temp_int != NULL) && (p_init->demod_mode == STV0900_DUAL)) {
1360 state->internal = temp_int->internal;
1361 (state->internal->dmds_used)++;
1362 dprintk("%s: Find Internal Structure!\n", __func__);
1363 return STV0900_NO_ERROR;
1364 } else {
1365 state->internal = kmalloc(sizeof(struct stv0900_internal),
1366 GFP_KERNEL);
1367 if (state->internal == NULL)
1368 return STV0900_INVALID_HANDLE;
1369 temp_int = append_internal(state->internal);
1370 if (temp_int == NULL) {
1371 kfree(state->internal);
1372 state->internal = NULL;
1373 return STV0900_INVALID_HANDLE;
1374 }
1375 state->internal->dmds_used = 1;
1376 state->internal->i2c_adap = state->i2c_adap;
1377 state->internal->i2c_addr = state->config->demod_address;
1378 state->internal->clkmode = state->config->clkmode;
1379 state->internal->errs = STV0900_NO_ERROR;
1380 dprintk("%s: Create New Internal Structure!\n", __func__);
1381 }
1382
1383 if (state->internal == NULL) {
1384 error = STV0900_INVALID_HANDLE;
1385 return error;
1386 }
1387
1388 demodError = stv0900_initialize(state->internal);
1389 if (demodError == STV0900_NO_ERROR) {
1390 error = STV0900_NO_ERROR;
1391 } else {
1392 if (demodError == STV0900_INVALID_HANDLE)
1393 error = STV0900_INVALID_HANDLE;
1394 else
1395 error = STV0900_I2C_ERROR;
1396
1397 return error;
1398 }
1399
1400 intp = state->internal;
1401
1402 intp->demod_mode = p_init->demod_mode;
1403 stv0900_st_dvbs2_single(intp, intp->demod_mode, STV0900_DEMOD_1);
1404 intp->chip_id = stv0900_read_reg(intp, R0900_MID);
1405 intp->rolloff = p_init->rolloff;
1406 intp->quartz = p_init->dmd_ref_clk;
1407
1408 stv0900_write_bits(intp, F0900_P1_ROLLOFF_CONTROL, p_init->rolloff);
1409 stv0900_write_bits(intp, F0900_P2_ROLLOFF_CONTROL, p_init->rolloff);
1410
1411 intp->ts_config = p_init->ts_config;
1412 if (intp->ts_config == NULL)
1413 stv0900_set_ts_parallel_serial(intp,
1414 p_init->path1_ts_clock,
1415 p_init->path2_ts_clock);
1416 else {
1417 for (i = 0; intp->ts_config[i].addr != 0xffff; i++)
1418 stv0900_write_reg(intp,
1419 intp->ts_config[i].addr,
1420 intp->ts_config[i].val);
1421
1422 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 1);
1423 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 0);
1424 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 1);
1425 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 0);
1426 }
1427
1428 intp->tuner_type[0] = p_init->tuner1_type;
1429 intp->tuner_type[1] = p_init->tuner2_type;
1430
1431 switch (p_init->tuner1_type) {
1432 case 3:
1433 stv0900_write_reg(intp, R0900_P1_TNRCFG, 0x3c);
1434 stv0900_write_reg(intp, R0900_P1_TNRCFG2, 0x86);
1435 stv0900_write_reg(intp, R0900_P1_TNRCFG3, 0x18);
1436 stv0900_write_reg(intp, R0900_P1_TNRXTAL, 27);
1437 stv0900_write_reg(intp, R0900_P1_TNRSTEPS, 0x05);
1438 stv0900_write_reg(intp, R0900_P1_TNRGAIN, 0x17);
1439 stv0900_write_reg(intp, R0900_P1_TNRADJ, 0x1f);
1440 stv0900_write_reg(intp, R0900_P1_TNRCTL2, 0x0);
1441 stv0900_write_bits(intp, F0900_P1_TUN_TYPE, 3);
1442 break;
1443
1444 default:
1445 stv0900_write_bits(intp, F0900_P1_TUN_TYPE, 6);
1446 break;
1447 }
1448
1449 stv0900_write_bits(intp, F0900_P1_TUN_MADDRESS, p_init->tun1_maddress);
1450 switch (p_init->tuner1_adc) {
1451 case 1:
1452 stv0900_write_reg(intp, R0900_TSTTNR1, 0x26);
1453 break;
1454 default:
1455 break;
1456 }
1457
1458 stv0900_write_reg(intp, R0900_P1_TNRLD, 1);
1459
1460
1461 switch (p_init->tuner2_type) {
1462 case 3:
1463 stv0900_write_reg(intp, R0900_P2_TNRCFG, 0x3c);
1464 stv0900_write_reg(intp, R0900_P2_TNRCFG2, 0x86);
1465 stv0900_write_reg(intp, R0900_P2_TNRCFG3, 0x18);
1466 stv0900_write_reg(intp, R0900_P2_TNRXTAL, 27);
1467 stv0900_write_reg(intp, R0900_P2_TNRSTEPS, 0x05);
1468 stv0900_write_reg(intp, R0900_P2_TNRGAIN, 0x17);
1469 stv0900_write_reg(intp, R0900_P2_TNRADJ, 0x1f);
1470 stv0900_write_reg(intp, R0900_P2_TNRCTL2, 0x0);
1471 stv0900_write_bits(intp, F0900_P2_TUN_TYPE, 3);
1472 break;
1473
1474 default:
1475 stv0900_write_bits(intp, F0900_P2_TUN_TYPE, 6);
1476 break;
1477 }
1478
1479 stv0900_write_bits(intp, F0900_P2_TUN_MADDRESS, p_init->tun2_maddress);
1480 switch (p_init->tuner2_adc) {
1481 case 1:
1482 stv0900_write_reg(intp, R0900_TSTTNR3, 0x26);
1483 break;
1484 default:
1485 break;
1486 }
1487
1488 stv0900_write_reg(intp, R0900_P2_TNRLD, 1);
1489
1490 stv0900_write_bits(intp, F0900_P1_TUN_IQSWAP, p_init->tun1_iq_inv);
1491 stv0900_write_bits(intp, F0900_P2_TUN_IQSWAP, p_init->tun2_iq_inv);
1492 stv0900_set_mclk(intp, 135000000);
1493 msleep(3);
1494
1495 switch (intp->clkmode) {
1496 case 0:
1497 case 2:
1498 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | intp->clkmode);
1499 break;
1500 default:
1501 selosci = 0x02 & stv0900_read_reg(intp, R0900_SYNTCTRL);
1502 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | selosci);
1503 break;
1504 }
1505 msleep(3);
1506
1507 intp->mclk = stv0900_get_mclk_freq(intp, intp->quartz);
1508 if (intp->errs)
1509 error = STV0900_I2C_ERROR;
1510
1511 return error;
1512}
1513
1514static int stv0900_status(struct stv0900_internal *intp,
1515 enum fe_stv0900_demod_num demod)
1516{
1517 enum fe_stv0900_search_state demod_state;
1518 int locked = FALSE;
1519 u8 tsbitrate0_val, tsbitrate1_val;
1520 s32 bitrate;
1521
1522 demod_state = stv0900_get_bits(intp, HEADER_MODE);
1523 switch (demod_state) {
1524 case STV0900_SEARCH:
1525 case STV0900_PLH_DETECTED:
1526 default:
1527 locked = FALSE;
1528 break;
1529 case STV0900_DVBS2_FOUND:
1530 locked = stv0900_get_bits(intp, LOCK_DEFINITIF) &&
1531 stv0900_get_bits(intp, PKTDELIN_LOCK) &&
1532 stv0900_get_bits(intp, TSFIFO_LINEOK);
1533 break;
1534 case STV0900_DVBS_FOUND:
1535 locked = stv0900_get_bits(intp, LOCK_DEFINITIF) &&
1536 stv0900_get_bits(intp, LOCKEDVIT) &&
1537 stv0900_get_bits(intp, TSFIFO_LINEOK);
1538 break;
1539 }
1540
1541 dprintk("%s: locked = %d\n", __func__, locked);
1542
1543 if (stvdebug) {
1544
1545 tsbitrate0_val = stv0900_read_reg(intp, TSBITRATE0);
1546 tsbitrate1_val = stv0900_read_reg(intp, TSBITRATE1);
1547
1548 bitrate = (stv0900_get_mclk_freq(intp, intp->quartz)/1000000)
1549 * (tsbitrate1_val << 8 | tsbitrate0_val);
1550 bitrate /= 16384;
1551 dprintk("TS bitrate = %d Mbit/sec\n", bitrate);
1552 }
1553
1554 return locked;
1555}
1556
1557static int stv0900_set_mis(struct stv0900_internal *intp,
1558 enum fe_stv0900_demod_num demod, int mis)
1559{
1560 dprintk("%s\n", __func__);
1561
1562 if (mis < 0 || mis > 255) {
1563 dprintk("Disable MIS filtering\n");
1564 stv0900_write_bits(intp, FILTER_EN, 0);
1565 } else {
1566 dprintk("Enable MIS filtering - %d\n", mis);
1567 stv0900_write_bits(intp, FILTER_EN, 1);
1568 stv0900_write_reg(intp, ISIENTRY, mis);
1569 stv0900_write_reg(intp, ISIBITENA, 0xff);
1570 }
1571
1572 return STV0900_NO_ERROR;
1573}
1574
1575
1576static enum dvbfe_search stv0900_search(struct dvb_frontend *fe)
1577{
1578 struct stv0900_state *state = fe->demodulator_priv;
1579 struct stv0900_internal *intp = state->internal;
1580 enum fe_stv0900_demod_num demod = state->demod;
1581 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
1582
1583 struct stv0900_search_params p_search;
1584 struct stv0900_signal_info p_result = intp->result[demod];
1585
1586 enum fe_stv0900_error error = STV0900_NO_ERROR;
1587
1588 dprintk("%s: ", __func__);
1589
1590 if (!(INRANGE(100000, c->symbol_rate, 70000000)))
1591 return DVBFE_ALGO_SEARCH_FAILED;
1592
1593 if (state->config->set_ts_params)
1594 state->config->set_ts_params(fe, 0);
1595
1596 stv0900_set_mis(intp, demod, c->stream_id);
1597
1598 p_result.locked = FALSE;
1599 p_search.path = demod;
1600 p_search.frequency = c->frequency;
1601 p_search.symbol_rate = c->symbol_rate;
1602 p_search.search_range = 10000000;
1603 p_search.fec = STV0900_FEC_UNKNOWN;
1604 p_search.standard = STV0900_AUTO_SEARCH;
1605 p_search.iq_inversion = STV0900_IQ_AUTO;
1606 p_search.search_algo = STV0900_BLIND_SEARCH;
1607
1608 if (c->delivery_system == SYS_DVBS)
1609 p_search.standard = STV0900_SEARCH_DVBS1;
1610
1611 intp->srch_standard[demod] = p_search.standard;
1612 intp->symbol_rate[demod] = p_search.symbol_rate;
1613 intp->srch_range[demod] = p_search.search_range;
1614 intp->freq[demod] = p_search.frequency;
1615 intp->srch_algo[demod] = p_search.search_algo;
1616 intp->srch_iq_inv[demod] = p_search.iq_inversion;
1617 intp->fec[demod] = p_search.fec;
1618 if ((stv0900_algo(fe) == STV0900_RANGEOK) &&
1619 (intp->errs == STV0900_NO_ERROR)) {
1620 p_result.locked = intp->result[demod].locked;
1621 p_result.standard = intp->result[demod].standard;
1622 p_result.frequency = intp->result[demod].frequency;
1623 p_result.symbol_rate = intp->result[demod].symbol_rate;
1624 p_result.fec = intp->result[demod].fec;
1625 p_result.modcode = intp->result[demod].modcode;
1626 p_result.pilot = intp->result[demod].pilot;
1627 p_result.frame_len = intp->result[demod].frame_len;
1628 p_result.spectrum = intp->result[demod].spectrum;
1629 p_result.rolloff = intp->result[demod].rolloff;
1630 p_result.modulation = intp->result[demod].modulation;
1631 } else {
1632 p_result.locked = FALSE;
1633 switch (intp->err[demod]) {
1634 case STV0900_I2C_ERROR:
1635 error = STV0900_I2C_ERROR;
1636 break;
1637 case STV0900_NO_ERROR:
1638 default:
1639 error = STV0900_SEARCH_FAILED;
1640 break;
1641 }
1642 }
1643
1644 if ((p_result.locked == TRUE) && (error == STV0900_NO_ERROR)) {
1645 dprintk("Search Success\n");
1646 return DVBFE_ALGO_SEARCH_SUCCESS;
1647 } else {
1648 dprintk("Search Fail\n");
1649 return DVBFE_ALGO_SEARCH_FAILED;
1650 }
1651
1652}
1653
1654static int stv0900_read_status(struct dvb_frontend *fe, enum fe_status *status)
1655{
1656 struct stv0900_state *state = fe->demodulator_priv;
1657
1658 dprintk("%s: ", __func__);
1659
1660 if ((stv0900_status(state->internal, state->demod)) == TRUE) {
1661 dprintk("DEMOD LOCK OK\n");
1662 *status = FE_HAS_CARRIER
1663 | FE_HAS_VITERBI
1664 | FE_HAS_SYNC
1665 | FE_HAS_LOCK;
1666 if (state->config->set_lock_led)
1667 state->config->set_lock_led(fe, 1);
1668 } else {
1669 *status = 0;
1670 if (state->config->set_lock_led)
1671 state->config->set_lock_led(fe, 0);
1672 dprintk("DEMOD LOCK FAIL\n");
1673 }
1674
1675 return 0;
1676}
1677
1678static int stv0900_stop_ts(struct dvb_frontend *fe, int stop_ts)
1679{
1680
1681 struct stv0900_state *state = fe->demodulator_priv;
1682 struct stv0900_internal *intp = state->internal;
1683 enum fe_stv0900_demod_num demod = state->demod;
1684
1685 if (stop_ts == TRUE)
1686 stv0900_write_bits(intp, RST_HWARE, 1);
1687 else
1688 stv0900_write_bits(intp, RST_HWARE, 0);
1689
1690 return 0;
1691}
1692
1693static int stv0900_diseqc_init(struct dvb_frontend *fe)
1694{
1695 struct stv0900_state *state = fe->demodulator_priv;
1696 struct stv0900_internal *intp = state->internal;
1697 enum fe_stv0900_demod_num demod = state->demod;
1698
1699 stv0900_write_bits(intp, DISTX_MODE, state->config->diseqc_mode);
1700 stv0900_write_bits(intp, DISEQC_RESET, 1);
1701 stv0900_write_bits(intp, DISEQC_RESET, 0);
1702
1703 return 0;
1704}
1705
1706static int stv0900_init(struct dvb_frontend *fe)
1707{
1708 dprintk("%s\n", __func__);
1709
1710 stv0900_stop_ts(fe, 1);
1711 stv0900_diseqc_init(fe);
1712
1713 return 0;
1714}
1715
1716static int stv0900_diseqc_send(struct stv0900_internal *intp , u8 *data,
1717 u32 NbData, enum fe_stv0900_demod_num demod)
1718{
1719 s32 i = 0;
1720
1721 stv0900_write_bits(intp, DIS_PRECHARGE, 1);
1722 while (i < NbData) {
1723 while (stv0900_get_bits(intp, FIFO_FULL))
1724 ;
1725 stv0900_write_reg(intp, DISTXDATA, data[i]);
1726 i++;
1727 }
1728
1729 stv0900_write_bits(intp, DIS_PRECHARGE, 0);
1730 i = 0;
1731 while ((stv0900_get_bits(intp, TX_IDLE) != 1) && (i < 10)) {
1732 msleep(10);
1733 i++;
1734 }
1735
1736 return 0;
1737}
1738
1739static int stv0900_send_master_cmd(struct dvb_frontend *fe,
1740 struct dvb_diseqc_master_cmd *cmd)
1741{
1742 struct stv0900_state *state = fe->demodulator_priv;
1743
1744 return stv0900_diseqc_send(state->internal,
1745 cmd->msg,
1746 cmd->msg_len,
1747 state->demod);
1748}
1749
1750static int stv0900_send_burst(struct dvb_frontend *fe,
1751 enum fe_sec_mini_cmd burst)
1752{
1753 struct stv0900_state *state = fe->demodulator_priv;
1754 struct stv0900_internal *intp = state->internal;
1755 enum fe_stv0900_demod_num demod = state->demod;
1756 u8 data;
1757
1758
1759 switch (burst) {
1760 case SEC_MINI_A:
1761 stv0900_write_bits(intp, DISTX_MODE, 3);
1762 data = 0x00;
1763 stv0900_diseqc_send(intp, &data, 1, state->demod);
1764 break;
1765 case SEC_MINI_B:
1766 stv0900_write_bits(intp, DISTX_MODE, 2);
1767 data = 0xff;
1768 stv0900_diseqc_send(intp, &data, 1, state->demod);
1769 break;
1770 }
1771
1772 return 0;
1773}
1774
1775static int stv0900_recv_slave_reply(struct dvb_frontend *fe,
1776 struct dvb_diseqc_slave_reply *reply)
1777{
1778 struct stv0900_state *state = fe->demodulator_priv;
1779 struct stv0900_internal *intp = state->internal;
1780 enum fe_stv0900_demod_num demod = state->demod;
1781 s32 i = 0;
1782
1783 reply->msg_len = 0;
1784
1785 while ((stv0900_get_bits(intp, RX_END) != 1) && (i < 10)) {
1786 msleep(10);
1787 i++;
1788 }
1789
1790 if (stv0900_get_bits(intp, RX_END)) {
1791 reply->msg_len = stv0900_get_bits(intp, FIFO_BYTENBR);
1792
1793 for (i = 0; i < reply->msg_len; i++)
1794 reply->msg[i] = stv0900_read_reg(intp, DISRXDATA);
1795 }
1796
1797 return 0;
1798}
1799
1800static int stv0900_set_tone(struct dvb_frontend *fe,
1801 enum fe_sec_tone_mode toneoff)
1802{
1803 struct stv0900_state *state = fe->demodulator_priv;
1804 struct stv0900_internal *intp = state->internal;
1805 enum fe_stv0900_demod_num demod = state->demod;
1806
1807 dprintk("%s: %s\n", __func__, ((toneoff == 0) ? "On" : "Off"));
1808
1809 switch (toneoff) {
1810 case SEC_TONE_ON:
1811
1812 stv0900_write_bits(intp, DISTX_MODE, 0);
1813 stv0900_write_bits(intp, DISEQC_RESET, 1);
1814
1815 stv0900_write_bits(intp, DISEQC_RESET, 0);
1816 break;
1817 case SEC_TONE_OFF:
1818
1819
1820 stv0900_write_bits(intp, DISTX_MODE,
1821 state->config->diseqc_mode);
1822
1823 stv0900_write_bits(intp, DISEQC_RESET, 1);
1824 stv0900_write_bits(intp, DISEQC_RESET, 0);
1825 break;
1826 default:
1827 return -EINVAL;
1828 }
1829
1830 return 0;
1831}
1832
1833static void stv0900_release(struct dvb_frontend *fe)
1834{
1835 struct stv0900_state *state = fe->demodulator_priv;
1836
1837 dprintk("%s\n", __func__);
1838
1839 if (state->config->set_lock_led)
1840 state->config->set_lock_led(fe, 0);
1841
1842 if ((--(state->internal->dmds_used)) <= 0) {
1843
1844 dprintk("%s: Actually removing\n", __func__);
1845
1846 remove_inode(state->internal);
1847 kfree(state->internal);
1848 }
1849
1850 kfree(state);
1851}
1852
1853static int stv0900_sleep(struct dvb_frontend *fe)
1854{
1855 struct stv0900_state *state = fe->demodulator_priv;
1856
1857 dprintk("%s\n", __func__);
1858
1859 if (state->config->set_lock_led)
1860 state->config->set_lock_led(fe, 0);
1861
1862 return 0;
1863}
1864
1865static int stv0900_get_frontend(struct dvb_frontend *fe,
1866 struct dtv_frontend_properties *p)
1867{
1868 struct stv0900_state *state = fe->demodulator_priv;
1869 struct stv0900_internal *intp = state->internal;
1870 enum fe_stv0900_demod_num demod = state->demod;
1871 struct stv0900_signal_info p_result = intp->result[demod];
1872
1873 p->frequency = p_result.locked ? p_result.frequency : 0;
1874 p->symbol_rate = p_result.locked ? p_result.symbol_rate : 0;
1875 return 0;
1876}
1877
1878static struct dvb_frontend_ops stv0900_ops = {
1879 .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
1880 .info = {
1881 .name = "STV0900 frontend",
1882 .frequency_min = 950000,
1883 .frequency_max = 2150000,
1884 .frequency_stepsize = 125,
1885 .frequency_tolerance = 0,
1886 .symbol_rate_min = 1000000,
1887 .symbol_rate_max = 45000000,
1888 .symbol_rate_tolerance = 500,
1889 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
1890 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 |
1891 FE_CAN_FEC_7_8 | FE_CAN_QPSK |
1892 FE_CAN_2G_MODULATION |
1893 FE_CAN_FEC_AUTO
1894 },
1895 .release = stv0900_release,
1896 .init = stv0900_init,
1897 .get_frontend = stv0900_get_frontend,
1898 .sleep = stv0900_sleep,
1899 .get_frontend_algo = stv0900_frontend_algo,
1900 .i2c_gate_ctrl = stv0900_i2c_gate_ctrl,
1901 .diseqc_send_master_cmd = stv0900_send_master_cmd,
1902 .diseqc_send_burst = stv0900_send_burst,
1903 .diseqc_recv_slave_reply = stv0900_recv_slave_reply,
1904 .set_tone = stv0900_set_tone,
1905 .search = stv0900_search,
1906 .read_status = stv0900_read_status,
1907 .read_ber = stv0900_read_ber,
1908 .read_signal_strength = stv0900_read_signal_strength,
1909 .read_snr = stv0900_read_snr,
1910 .read_ucblocks = stv0900_read_ucblocks,
1911};
1912
1913struct dvb_frontend *stv0900_attach(const struct stv0900_config *config,
1914 struct i2c_adapter *i2c,
1915 int demod)
1916{
1917 struct stv0900_state *state = NULL;
1918 struct stv0900_init_params init_params;
1919 enum fe_stv0900_error err_stv0900;
1920
1921 state = kzalloc(sizeof(struct stv0900_state), GFP_KERNEL);
1922 if (state == NULL)
1923 goto error;
1924
1925 state->demod = demod;
1926 state->config = config;
1927 state->i2c_adap = i2c;
1928
1929 memcpy(&state->frontend.ops, &stv0900_ops,
1930 sizeof(struct dvb_frontend_ops));
1931 state->frontend.demodulator_priv = state;
1932
1933 switch (demod) {
1934 case 0:
1935 case 1:
1936 init_params.dmd_ref_clk = config->xtal;
1937 init_params.demod_mode = config->demod_mode;
1938 init_params.rolloff = STV0900_35;
1939 init_params.path1_ts_clock = config->path1_mode;
1940 init_params.tun1_maddress = config->tun1_maddress;
1941 init_params.tun1_iq_inv = STV0900_IQ_NORMAL;
1942 init_params.tuner1_adc = config->tun1_adc;
1943 init_params.tuner1_type = config->tun1_type;
1944 init_params.path2_ts_clock = config->path2_mode;
1945 init_params.ts_config = config->ts_config_regs;
1946 init_params.tun2_maddress = config->tun2_maddress;
1947 init_params.tuner2_adc = config->tun2_adc;
1948 init_params.tuner2_type = config->tun2_type;
1949 init_params.tun2_iq_inv = STV0900_IQ_SWAPPED;
1950
1951 err_stv0900 = stv0900_init_internal(&state->frontend,
1952 &init_params);
1953
1954 if (err_stv0900)
1955 goto error;
1956
1957 if (state->internal->chip_id >= 0x30)
1958 state->frontend.ops.info.caps |= FE_CAN_MULTISTREAM;
1959
1960 break;
1961 default:
1962 goto error;
1963 break;
1964 }
1965
1966 dprintk("%s: Attaching STV0900 demodulator(%d) \n", __func__, demod);
1967 return &state->frontend;
1968
1969error:
1970 dprintk("%s: Failed to attach STV0900 demodulator(%d) \n",
1971 __func__, demod);
1972 kfree(state);
1973 return NULL;
1974}
1975EXPORT_SYMBOL(stv0900_attach);
1976
1977MODULE_PARM_DESC(debug, "Set debug");
1978
1979MODULE_AUTHOR("Igor M. Liplianin");
1980MODULE_DESCRIPTION("ST STV0900 frontend");
1981MODULE_LICENSE("GPL");
1982
