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