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12#include <linux/kernel.h>
13#include <linux/module.h>
14#include <linux/string.h>
15#include <linux/slab.h>
16#include <linux/i2c.h>
17
18#include "stv0900.h"
19#include "stv0900_reg.h"
20#include "stv0900_priv.h"
21#include "stv0900_init.h"
22
23int stvdebug = 1;
24module_param_named(debug, stvdebug, int, 0644);
25
26
27struct stv0900_inode {
28
29 struct stv0900_internal *internal;
30 struct stv0900_inode *next_inode;
31};
32
33
34static struct stv0900_inode *stv0900_first_inode;
35
36
37static struct stv0900_inode *find_inode(struct i2c_adapter *i2c_adap,
38 u8 i2c_addr)
39{
40 struct stv0900_inode *temp_chip = stv0900_first_inode;
41
42 if (temp_chip != NULL) {
43
44
45
46 while ((temp_chip != NULL) &&
47 ((temp_chip->internal->i2c_adap != i2c_adap) ||
48 (temp_chip->internal->i2c_addr != i2c_addr)))
49
50 temp_chip = temp_chip->next_inode;
51
52 }
53
54 return temp_chip;
55}
56
57
58static void remove_inode(struct stv0900_internal *internal)
59{
60 struct stv0900_inode *prev_node = stv0900_first_inode;
61 struct stv0900_inode *del_node = find_inode(internal->i2c_adap,
62 internal->i2c_addr);
63
64 if (del_node != NULL) {
65 if (del_node == stv0900_first_inode) {
66 stv0900_first_inode = del_node->next_inode;
67 } else {
68 while (prev_node->next_inode != del_node)
69 prev_node = prev_node->next_inode;
70
71 if (del_node->next_inode == NULL)
72 prev_node->next_inode = NULL;
73 else
74 prev_node->next_inode =
75 prev_node->next_inode->next_inode;
76 }
77
78 kfree(del_node);
79 }
80}
81
82
83static struct stv0900_inode *append_internal(struct stv0900_internal *internal)
84{
85 struct stv0900_inode *new_node = stv0900_first_inode;
86
87 if (new_node == NULL) {
88 new_node = kmalloc(sizeof(struct stv0900_inode), GFP_KERNEL);
89 stv0900_first_inode = new_node;
90 } else {
91 while (new_node->next_inode != NULL)
92 new_node = new_node->next_inode;
93
94 new_node->next_inode = kmalloc(sizeof(struct stv0900_inode),
95 GFP_KERNEL);
96 if (new_node->next_inode != NULL)
97 new_node = new_node->next_inode;
98 else
99 new_node = NULL;
100 }
101
102 if (new_node != NULL) {
103 new_node->internal = internal;
104 new_node->next_inode = NULL;
105 }
106
107 return new_node;
108}
109
110s32 ge2comp(s32 a, s32 width)
111{
112 if (width == 32)
113 return a;
114 else
115 return (a >= (1 << (width - 1))) ? (a - (1 << width)) : a;
116}
117
118void stv0900_write_reg(struct stv0900_internal *intp, u16 reg_addr,
119 u8 reg_data)
120{
121 u8 data[3];
122 int ret;
123 struct i2c_msg i2cmsg = {
124 .addr = intp->i2c_addr,
125 .flags = 0,
126 .len = 3,
127 .buf = data,
128 };
129
130 data[0] = MSB(reg_addr);
131 data[1] = LSB(reg_addr);
132 data[2] = reg_data;
133
134 ret = i2c_transfer(intp->i2c_adap, &i2cmsg, 1);
135 if (ret != 1)
136 dprintk("%s: i2c error %d\n", __func__, ret);
137}
138
139u8 stv0900_read_reg(struct stv0900_internal *intp, u16 reg)
140{
141 int ret;
142 u8 b0[] = { MSB(reg), LSB(reg) };
143 u8 buf = 0;
144 struct i2c_msg msg[] = {
145 {
146 .addr = intp->i2c_addr,
147 .flags = 0,
148 .buf = b0,
149 .len = 2,
150 }, {
151 .addr = intp->i2c_addr,
152 .flags = I2C_M_RD,
153 .buf = &buf,
154 .len = 1,
155 },
156 };
157
158 ret = i2c_transfer(intp->i2c_adap, msg, 2);
159 if (ret != 2)
160 dprintk("%s: i2c error %d, reg[0x%02x]\n",
161 __func__, ret, reg);
162
163 return buf;
164}
165
166static void extract_mask_pos(u32 label, u8 *mask, u8 *pos)
167{
168 u8 position = 0, i = 0;
169
170 (*mask) = label & 0xff;
171
172 while ((position == 0) && (i < 8)) {
173 position = ((*mask) >> i) & 0x01;
174 i++;
175 }
176
177 (*pos) = (i - 1);
178}
179
180void stv0900_write_bits(struct stv0900_internal *intp, u32 label, u8 val)
181{
182 u8 reg, mask, pos;
183
184 reg = stv0900_read_reg(intp, (label >> 16) & 0xffff);
185 extract_mask_pos(label, &mask, &pos);
186
187 val = mask & (val << pos);
188
189 reg = (reg & (~mask)) | val;
190 stv0900_write_reg(intp, (label >> 16) & 0xffff, reg);
191
192}
193
194u8 stv0900_get_bits(struct stv0900_internal *intp, u32 label)
195{
196 u8 val;
197 u8 mask, pos;
198
199 extract_mask_pos(label, &mask, &pos);
200
201 val = stv0900_read_reg(intp, label >> 16);
202 val = (val & mask) >> pos;
203
204 return val;
205}
206
207static enum fe_stv0900_error stv0900_initialize(struct stv0900_internal *intp)
208{
209 s32 i;
210
211 if (intp == NULL)
212 return STV0900_INVALID_HANDLE;
213
214 intp->chip_id = stv0900_read_reg(intp, R0900_MID);
215
216 if (intp->errs != STV0900_NO_ERROR)
217 return intp->errs;
218
219
220 stv0900_write_reg(intp, R0900_P1_DMDISTATE, 0x5c);
221 stv0900_write_reg(intp, R0900_P2_DMDISTATE, 0x5c);
222 msleep(3);
223 stv0900_write_reg(intp, R0900_P1_TNRCFG, 0x6c);
224 stv0900_write_reg(intp, R0900_P2_TNRCFG, 0x6f);
225 stv0900_write_reg(intp, R0900_P1_I2CRPT, 0x20);
226 stv0900_write_reg(intp, R0900_P2_I2CRPT, 0x20);
227 stv0900_write_reg(intp, R0900_NCOARSE, 0x13);
228 msleep(3);
229 stv0900_write_reg(intp, R0900_I2CCFG, 0x08);
230
231 switch (intp->clkmode) {
232 case 0:
233 case 2:
234 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20
235 | intp->clkmode);
236 break;
237 default:
238
239 i = 0x02 & stv0900_read_reg(intp, R0900_SYNTCTRL);
240 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | i);
241 break;
242 }
243
244 msleep(3);
245 for (i = 0; i < 181; i++)
246 stv0900_write_reg(intp, STV0900_InitVal[i][0],
247 STV0900_InitVal[i][1]);
248
249 if (stv0900_read_reg(intp, R0900_MID) >= 0x20) {
250 stv0900_write_reg(intp, R0900_TSGENERAL, 0x0c);
251 for (i = 0; i < 32; i++)
252 stv0900_write_reg(intp, STV0900_Cut20_AddOnVal[i][0],
253 STV0900_Cut20_AddOnVal[i][1]);
254 }
255
256 stv0900_write_reg(intp, R0900_P1_FSPYCFG, 0x6c);
257 stv0900_write_reg(intp, R0900_P2_FSPYCFG, 0x6c);
258
259 stv0900_write_reg(intp, R0900_P1_PDELCTRL2, 0x01);
260 stv0900_write_reg(intp, R0900_P2_PDELCTRL2, 0x21);
261
262 stv0900_write_reg(intp, R0900_P1_PDELCTRL3, 0x20);
263 stv0900_write_reg(intp, R0900_P2_PDELCTRL3, 0x20);
264
265 stv0900_write_reg(intp, R0900_TSTRES0, 0x80);
266 stv0900_write_reg(intp, R0900_TSTRES0, 0x00);
267
268 return STV0900_NO_ERROR;
269}
270
271static u32 stv0900_get_mclk_freq(struct stv0900_internal *intp, u32 ext_clk)
272{
273 u32 mclk, div, ad_div;
274
275 div = stv0900_get_bits(intp, F0900_M_DIV);
276 ad_div = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6);
277
278 mclk = (div + 1) * ext_clk / ad_div;
279
280 dprintk("%s: Calculated Mclk = %d\n", __func__, mclk);
281
282 return mclk;
283}
284
285static enum fe_stv0900_error stv0900_set_mclk(struct stv0900_internal *intp, u32 mclk)
286{
287 u32 m_div, clk_sel;
288
289 if (intp == NULL)
290 return STV0900_INVALID_HANDLE;
291
292 if (intp->errs)
293 return STV0900_I2C_ERROR;
294
295 dprintk("%s: Mclk set to %d, Quartz = %d\n", __func__, mclk,
296 intp->quartz);
297
298 clk_sel = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6);
299 m_div = ((clk_sel * mclk) / intp->quartz) - 1;
300 stv0900_write_bits(intp, F0900_M_DIV, m_div);
301 intp->mclk = stv0900_get_mclk_freq(intp,
302 intp->quartz);
303
304
305
306
307
308
309
310 m_div = intp->mclk / 704000;
311 stv0900_write_reg(intp, R0900_P1_F22TX, m_div);
312 stv0900_write_reg(intp, R0900_P1_F22RX, m_div);
313
314 stv0900_write_reg(intp, R0900_P2_F22TX, m_div);
315 stv0900_write_reg(intp, R0900_P2_F22RX, m_div);
316
317 if ((intp->errs))
318 return STV0900_I2C_ERROR;
319
320 return STV0900_NO_ERROR;
321}
322
323static u32 stv0900_get_err_count(struct stv0900_internal *intp, int cntr,
324 enum fe_stv0900_demod_num demod)
325{
326 u32 lsb, msb, hsb, err_val;
327
328 switch (cntr) {
329 case 0:
330 default:
331 hsb = stv0900_get_bits(intp, ERR_CNT12);
332 msb = stv0900_get_bits(intp, ERR_CNT11);
333 lsb = stv0900_get_bits(intp, ERR_CNT10);
334 break;
335 case 1:
336 hsb = stv0900_get_bits(intp, ERR_CNT22);
337 msb = stv0900_get_bits(intp, ERR_CNT21);
338 lsb = stv0900_get_bits(intp, ERR_CNT20);
339 break;
340 }
341
342 err_val = (hsb << 16) + (msb << 8) + (lsb);
343
344 return err_val;
345}
346
347static int stv0900_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
348{
349 struct stv0900_state *state = fe->demodulator_priv;
350 struct stv0900_internal *intp = state->internal;
351 enum fe_stv0900_demod_num demod = state->demod;
352
353 stv0900_write_bits(intp, I2CT_ON, enable);
354
355 return 0;
356}
357
358static void stv0900_set_ts_parallel_serial(struct stv0900_internal *intp,
359 enum fe_stv0900_clock_type path1_ts,
360 enum fe_stv0900_clock_type path2_ts)
361{
362
363 dprintk("%s\n", __func__);
364
365 if (intp->chip_id >= 0x20) {
366 switch (path1_ts) {
367 case STV0900_PARALLEL_PUNCT_CLOCK:
368 case STV0900_DVBCI_CLOCK:
369 switch (path2_ts) {
370 case STV0900_SERIAL_PUNCT_CLOCK:
371 case STV0900_SERIAL_CONT_CLOCK:
372 default:
373 stv0900_write_reg(intp, R0900_TSGENERAL,
374 0x00);
375 break;
376 case STV0900_PARALLEL_PUNCT_CLOCK:
377 case STV0900_DVBCI_CLOCK:
378 stv0900_write_reg(intp, R0900_TSGENERAL,
379 0x06);
380 stv0900_write_bits(intp,
381 F0900_P1_TSFIFO_MANSPEED, 3);
382 stv0900_write_bits(intp,
383 F0900_P2_TSFIFO_MANSPEED, 0);
384 stv0900_write_reg(intp,
385 R0900_P1_TSSPEED, 0x14);
386 stv0900_write_reg(intp,
387 R0900_P2_TSSPEED, 0x28);
388 break;
389 }
390 break;
391 case STV0900_SERIAL_PUNCT_CLOCK:
392 case STV0900_SERIAL_CONT_CLOCK:
393 default:
394 switch (path2_ts) {
395 case STV0900_SERIAL_PUNCT_CLOCK:
396 case STV0900_SERIAL_CONT_CLOCK:
397 default:
398 stv0900_write_reg(intp,
399 R0900_TSGENERAL, 0x0C);
400 break;
401 case STV0900_PARALLEL_PUNCT_CLOCK:
402 case STV0900_DVBCI_CLOCK:
403 stv0900_write_reg(intp,
404 R0900_TSGENERAL, 0x0A);
405 dprintk("%s: 0x0a\n", __func__);
406 break;
407 }
408 break;
409 }
410 } else {
411 switch (path1_ts) {
412 case STV0900_PARALLEL_PUNCT_CLOCK:
413 case STV0900_DVBCI_CLOCK:
414 switch (path2_ts) {
415 case STV0900_SERIAL_PUNCT_CLOCK:
416 case STV0900_SERIAL_CONT_CLOCK:
417 default:
418 stv0900_write_reg(intp, R0900_TSGENERAL1X,
419 0x10);
420 break;
421 case STV0900_PARALLEL_PUNCT_CLOCK:
422 case STV0900_DVBCI_CLOCK:
423 stv0900_write_reg(intp, R0900_TSGENERAL1X,
424 0x16);
425 stv0900_write_bits(intp,
426 F0900_P1_TSFIFO_MANSPEED, 3);
427 stv0900_write_bits(intp,
428 F0900_P2_TSFIFO_MANSPEED, 0);
429 stv0900_write_reg(intp, R0900_P1_TSSPEED,
430 0x14);
431 stv0900_write_reg(intp, R0900_P2_TSSPEED,
432 0x28);
433 break;
434 }
435
436 break;
437 case STV0900_SERIAL_PUNCT_CLOCK:
438 case STV0900_SERIAL_CONT_CLOCK:
439 default:
440 switch (path2_ts) {
441 case STV0900_SERIAL_PUNCT_CLOCK:
442 case STV0900_SERIAL_CONT_CLOCK:
443 default:
444 stv0900_write_reg(intp, R0900_TSGENERAL1X,
445 0x14);
446 break;
447 case STV0900_PARALLEL_PUNCT_CLOCK:
448 case STV0900_DVBCI_CLOCK:
449 stv0900_write_reg(intp, R0900_TSGENERAL1X,
450 0x12);
451 dprintk("%s: 0x12\n", __func__);
452 break;
453 }
454
455 break;
456 }
457 }
458
459 switch (path1_ts) {
460 case STV0900_PARALLEL_PUNCT_CLOCK:
461 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x00);
462 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x00);
463 break;
464 case STV0900_DVBCI_CLOCK:
465 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x00);
466 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x01);
467 break;
468 case STV0900_SERIAL_PUNCT_CLOCK:
469 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x01);
470 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x00);
471 break;
472 case STV0900_SERIAL_CONT_CLOCK:
473 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x01);
474 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x01);
475 break;
476 default:
477 break;
478 }
479
480 switch (path2_ts) {
481 case STV0900_PARALLEL_PUNCT_CLOCK:
482 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x00);
483 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x00);
484 break;
485 case STV0900_DVBCI_CLOCK:
486 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x00);
487 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x01);
488 break;
489 case STV0900_SERIAL_PUNCT_CLOCK:
490 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x01);
491 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x00);
492 break;
493 case STV0900_SERIAL_CONT_CLOCK:
494 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x01);
495 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x01);
496 break;
497 default:
498 break;
499 }
500
501 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 1);
502 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 0);
503 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 1);
504 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 0);
505}
506
507void stv0900_set_tuner(struct dvb_frontend *fe, u32 frequency,
508 u32 bandwidth)
509{
510 struct dvb_frontend_ops *frontend_ops = NULL;
511 struct dvb_tuner_ops *tuner_ops = NULL;
512
513 frontend_ops = &fe->ops;
514 tuner_ops = &frontend_ops->tuner_ops;
515
516 if (tuner_ops->set_frequency) {
517 if ((tuner_ops->set_frequency(fe, frequency)) < 0)
518 dprintk("%s: Invalid parameter\n", __func__);
519 else
520 dprintk("%s: Frequency=%d\n", __func__, frequency);
521
522 }
523
524 if (tuner_ops->set_bandwidth) {
525 if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0)
526 dprintk("%s: Invalid parameter\n", __func__);
527 else
528 dprintk("%s: Bandwidth=%d\n", __func__, bandwidth);
529
530 }
531}
532
533void stv0900_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
534{
535 struct dvb_frontend_ops *frontend_ops = NULL;
536 struct dvb_tuner_ops *tuner_ops = NULL;
537
538 frontend_ops = &fe->ops;
539 tuner_ops = &frontend_ops->tuner_ops;
540
541 if (tuner_ops->set_bandwidth) {
542 if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0)
543 dprintk("%s: Invalid parameter\n", __func__);
544 else
545 dprintk("%s: Bandwidth=%d\n", __func__, bandwidth);
546
547 }
548}
549
550u32 stv0900_get_freq_auto(struct stv0900_internal *intp, int demod)
551{
552 u32 freq, round;
553
554
555
556
557
558 freq = (stv0900_get_bits(intp, TUN_RFFREQ2) << 10) +
559 (stv0900_get_bits(intp, TUN_RFFREQ1) << 2) +
560 stv0900_get_bits(intp, TUN_RFFREQ0);
561
562 freq = (freq * 1000) / 64;
563
564 round = (stv0900_get_bits(intp, TUN_RFRESTE1) >> 2) +
565 stv0900_get_bits(intp, TUN_RFRESTE0);
566
567 round = (round * 1000) / 2048;
568
569 return freq + round;
570}
571
572void stv0900_set_tuner_auto(struct stv0900_internal *intp, u32 Frequency,
573 u32 Bandwidth, int demod)
574{
575 u32 tunerFrequency;
576
577
578
579 tunerFrequency = (Frequency * 64) / 1000;
580
581 stv0900_write_bits(intp, TUN_RFFREQ2, (tunerFrequency >> 10));
582 stv0900_write_bits(intp, TUN_RFFREQ1, (tunerFrequency >> 2) & 0xff);
583 stv0900_write_bits(intp, TUN_RFFREQ0, (tunerFrequency & 0x03));
584
585 stv0900_write_bits(intp, TUN_BW, Bandwidth / 2000000);
586
587 stv0900_write_reg(intp, TNRLD, 1);
588}
589
590static s32 stv0900_get_rf_level(struct stv0900_internal *intp,
591 const struct stv0900_table *lookup,
592 enum fe_stv0900_demod_num demod)
593{
594 s32 agc_gain = 0,
595 imin,
596 imax,
597 i,
598 rf_lvl = 0;
599
600 dprintk("%s\n", __func__);
601
602 if ((lookup == NULL) || (lookup->size <= 0))
603 return 0;
604
605 agc_gain = MAKEWORD(stv0900_get_bits(intp, AGCIQ_VALUE1),
606 stv0900_get_bits(intp, AGCIQ_VALUE0));
607
608 imin = 0;
609 imax = lookup->size - 1;
610 if (INRANGE(lookup->table[imin].regval, agc_gain,
611 lookup->table[imax].regval)) {
612 while ((imax - imin) > 1) {
613 i = (imax + imin) >> 1;
614
615 if (INRANGE(lookup->table[imin].regval,
616 agc_gain,
617 lookup->table[i].regval))
618 imax = i;
619 else
620 imin = i;
621 }
622
623 rf_lvl = (s32)agc_gain - lookup->table[imin].regval;
624 rf_lvl *= (lookup->table[imax].realval -
625 lookup->table[imin].realval);
626 rf_lvl /= (lookup->table[imax].regval -
627 lookup->table[imin].regval);
628 rf_lvl += lookup->table[imin].realval;
629 } else if (agc_gain > lookup->table[0].regval)
630 rf_lvl = 5;
631 else if (agc_gain < lookup->table[lookup->size-1].regval)
632 rf_lvl = -100;
633
634 dprintk("%s: RFLevel = %d\n", __func__, rf_lvl);
635
636 return rf_lvl;
637}
638
639static int stv0900_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
640{
641 struct stv0900_state *state = fe->demodulator_priv;
642 struct stv0900_internal *internal = state->internal;
643 s32 rflevel = stv0900_get_rf_level(internal, &stv0900_rf,
644 state->demod);
645
646 rflevel = (rflevel + 100) * (65535 / 70);
647 if (rflevel < 0)
648 rflevel = 0;
649
650 if (rflevel > 65535)
651 rflevel = 65535;
652
653 *strength = rflevel;
654
655 return 0;
656}
657
658static s32 stv0900_carr_get_quality(struct dvb_frontend *fe,
659 const struct stv0900_table *lookup)
660{
661 struct stv0900_state *state = fe->demodulator_priv;
662 struct stv0900_internal *intp = state->internal;
663 enum fe_stv0900_demod_num demod = state->demod;
664
665 s32 c_n = -100,
666 regval,
667 imin,
668 imax,
669 i,
670 noise_field1,
671 noise_field0;
672
673 dprintk("%s\n", __func__);
674
675 if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
676 noise_field1 = NOSPLHT_NORMED1;
677 noise_field0 = NOSPLHT_NORMED0;
678 } else {
679 noise_field1 = NOSDATAT_NORMED1;
680 noise_field0 = NOSDATAT_NORMED0;
681 }
682
683 if (stv0900_get_bits(intp, LOCK_DEFINITIF)) {
684 if ((lookup != NULL) && lookup->size) {
685 regval = 0;
686 msleep(5);
687 for (i = 0; i < 16; i++) {
688 regval += MAKEWORD(stv0900_get_bits(intp,
689 noise_field1),
690 stv0900_get_bits(intp,
691 noise_field0));
692 msleep(1);
693 }
694
695 regval /= 16;
696 imin = 0;
697 imax = lookup->size - 1;
698 if (INRANGE(lookup->table[imin].regval,
699 regval,
700 lookup->table[imax].regval)) {
701 while ((imax - imin) > 1) {
702 i = (imax + imin) >> 1;
703 if (INRANGE(lookup->table[imin].regval,
704 regval,
705 lookup->table[i].regval))
706 imax = i;
707 else
708 imin = i;
709 }
710
711 c_n = ((regval - lookup->table[imin].regval)
712 * (lookup->table[imax].realval
713 - lookup->table[imin].realval)
714 / (lookup->table[imax].regval
715 - lookup->table[imin].regval))
716 + lookup->table[imin].realval;
717 } else if (regval < lookup->table[imin].regval)
718 c_n = 1000;
719 }
720 }
721
722 return c_n;
723}
724
725static int stv0900_read_ucblocks(struct dvb_frontend *fe, u32 * ucblocks)
726{
727 struct stv0900_state *state = fe->demodulator_priv;
728 struct stv0900_internal *intp = state->internal;
729 enum fe_stv0900_demod_num demod = state->demod;
730 u8 err_val1, err_val0;
731 u32 header_err_val = 0;
732
733 *ucblocks = 0x0;
734 if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
735
736
737
738 err_val1 = stv0900_read_reg(intp, BBFCRCKO1);
739 err_val0 = stv0900_read_reg(intp, BBFCRCKO0);
740 header_err_val = (err_val1 << 8) | err_val0;
741
742
743 err_val1 = stv0900_read_reg(intp, UPCRCKO1);
744 err_val0 = stv0900_read_reg(intp, UPCRCKO0);
745 *ucblocks = (err_val1 << 8) | err_val0;
746 *ucblocks += header_err_val;
747 }
748
749 return 0;
750}
751
752static int stv0900_read_snr(struct dvb_frontend *fe, u16 *snr)
753{
754 s32 snrlcl = stv0900_carr_get_quality(fe,
755 (const struct stv0900_table *)&stv0900_s2_cn);
756 snrlcl = (snrlcl + 30) * 384;
757 if (snrlcl < 0)
758 snrlcl = 0;
759
760 if (snrlcl > 65535)
761 snrlcl = 65535;
762
763 *snr = snrlcl;
764
765 return 0;
766}
767
768static u32 stv0900_get_ber(struct stv0900_internal *intp,
769 enum fe_stv0900_demod_num demod)
770{
771 u32 ber = 10000000, i;
772 s32 demod_state;
773
774 demod_state = stv0900_get_bits(intp, HEADER_MODE);
775
776 switch (demod_state) {
777 case STV0900_SEARCH:
778 case STV0900_PLH_DETECTED:
779 default:
780 ber = 10000000;
781 break;
782 case STV0900_DVBS_FOUND:
783 ber = 0;
784 for (i = 0; i < 5; i++) {
785 msleep(5);
786 ber += stv0900_get_err_count(intp, 0, demod);
787 }
788
789 ber /= 5;
790 if (stv0900_get_bits(intp, PRFVIT)) {
791 ber *= 9766;
792 ber = ber >> 13;
793 }
794
795 break;
796 case STV0900_DVBS2_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, PKTDELIN_LOCK)) {
805 ber *= 9766;
806 ber = ber >> 13;
807 }
808
809 break;
810 }
811
812 return ber;
813}
814
815static int stv0900_read_ber(struct dvb_frontend *fe, u32 *ber)
816{
817 struct stv0900_state *state = fe->demodulator_priv;
818 struct stv0900_internal *internal = state->internal;
819
820 *ber = stv0900_get_ber(internal, state->demod);
821
822 return 0;
823}
824
825int stv0900_get_demod_lock(struct stv0900_internal *intp,
826 enum fe_stv0900_demod_num demod, s32 time_out)
827{
828 s32 timer = 0,
829 lock = 0;
830
831 enum fe_stv0900_search_state dmd_state;
832
833 while ((timer < time_out) && (lock == 0)) {
834 dmd_state = stv0900_get_bits(intp, HEADER_MODE);
835 dprintk("Demod State = %d\n", dmd_state);
836 switch (dmd_state) {
837 case STV0900_SEARCH:
838 case STV0900_PLH_DETECTED:
839 default:
840 lock = 0;
841 break;
842 case STV0900_DVBS2_FOUND:
843 case STV0900_DVBS_FOUND:
844 lock = stv0900_get_bits(intp, LOCK_DEFINITIF);
845 break;
846 }
847
848 if (lock == 0)
849 msleep(10);
850
851 timer += 10;
852 }
853
854 if (lock)
855 dprintk("DEMOD LOCK OK\n");
856 else
857 dprintk("DEMOD LOCK FAIL\n");
858
859 return lock;
860}
861
862void stv0900_stop_all_s2_modcod(struct stv0900_internal *intp,
863 enum fe_stv0900_demod_num demod)
864{
865 s32 regflist,
866 i;
867
868 dprintk("%s\n", __func__);
869
870 regflist = MODCODLST0;
871
872 for (i = 0; i < 16; i++)
873 stv0900_write_reg(intp, regflist + i, 0xff);
874}
875
876void stv0900_activate_s2_modcod(struct stv0900_internal *intp,
877 enum fe_stv0900_demod_num demod)
878{
879 u32 matype,
880 mod_code,
881 fmod,
882 reg_index,
883 field_index;
884
885 dprintk("%s\n", __func__);
886
887 if (intp->chip_id <= 0x11) {
888 msleep(5);
889
890 mod_code = stv0900_read_reg(intp, PLHMODCOD);
891 matype = mod_code & 0x3;
892 mod_code = (mod_code & 0x7f) >> 2;
893
894 reg_index = MODCODLSTF - mod_code / 2;
895 field_index = mod_code % 2;
896
897 switch (matype) {
898 case 0:
899 default:
900 fmod = 14;
901 break;
902 case 1:
903 fmod = 13;
904 break;
905 case 2:
906 fmod = 11;
907 break;
908 case 3:
909 fmod = 7;
910 break;
911 }
912
913 if ((INRANGE(STV0900_QPSK_12, mod_code, STV0900_8PSK_910))
914 && (matype <= 1)) {
915 if (field_index == 0)
916 stv0900_write_reg(intp, reg_index,
917 0xf0 | fmod);
918 else
919 stv0900_write_reg(intp, reg_index,
920 (fmod << 4) | 0xf);
921 }
922
923 } else if (intp->chip_id >= 0x12) {
924 for (reg_index = 0; reg_index < 7; reg_index++)
925 stv0900_write_reg(intp, MODCODLST0 + reg_index, 0xff);
926
927 stv0900_write_reg(intp, MODCODLSTE, 0xff);
928 stv0900_write_reg(intp, MODCODLSTF, 0xcf);
929 for (reg_index = 0; reg_index < 8; reg_index++)
930 stv0900_write_reg(intp, MODCODLST7 + reg_index, 0xcc);
931
932
933 }
934}
935
936void stv0900_activate_s2_modcod_single(struct stv0900_internal *intp,
937 enum fe_stv0900_demod_num demod)
938{
939 u32 reg_index;
940
941 dprintk("%s\n", __func__);
942
943 stv0900_write_reg(intp, MODCODLST0, 0xff);
944 stv0900_write_reg(intp, MODCODLST1, 0xf0);
945 stv0900_write_reg(intp, MODCODLSTF, 0x0f);
946 for (reg_index = 0; reg_index < 13; reg_index++)
947 stv0900_write_reg(intp, MODCODLST2 + reg_index, 0);
948
949}
950
951static enum dvbfe_algo stv0900_frontend_algo(struct dvb_frontend *fe)
952{
953 return DVBFE_ALGO_CUSTOM;
954}
955
956void stv0900_start_search(struct stv0900_internal *intp,
957 enum fe_stv0900_demod_num demod)
958{
959 u32 freq;
960 s16 freq_s16 ;
961
962 stv0900_write_bits(intp, DEMOD_MODE, 0x1f);
963 if (intp->chip_id == 0x10)
964 stv0900_write_reg(intp, CORRELEXP, 0xaa);
965
966 if (intp->chip_id < 0x20)
967 stv0900_write_reg(intp, CARHDR, 0x55);
968
969 if (intp->chip_id <= 0x20) {
970 if (intp->symbol_rate[0] <= 5000000) {
971 stv0900_write_reg(intp, CARCFG, 0x44);
972 stv0900_write_reg(intp, CFRUP1, 0x0f);
973 stv0900_write_reg(intp, CFRUP0, 0xff);
974 stv0900_write_reg(intp, CFRLOW1, 0xf0);
975 stv0900_write_reg(intp, CFRLOW0, 0x00);
976 stv0900_write_reg(intp, RTCS2, 0x68);
977 } else {
978 stv0900_write_reg(intp, CARCFG, 0xc4);
979 stv0900_write_reg(intp, RTCS2, 0x44);
980 }
981
982 } else {
983 if (intp->symbol_rate[demod] <= 5000000)
984 stv0900_write_reg(intp, RTCS2, 0x68);
985 else
986 stv0900_write_reg(intp, RTCS2, 0x44);
987
988 stv0900_write_reg(intp, CARCFG, 0x46);
989 if (intp->srch_algo[demod] == STV0900_WARM_START) {
990 freq = 1000 << 16;
991 freq /= (intp->mclk / 1000);
992 freq_s16 = (s16)freq;
993 } else {
994 freq = (intp->srch_range[demod] / 2000);
995 if (intp->symbol_rate[demod] <= 5000000)
996 freq += 80;
997 else
998 freq += 600;
999
1000 freq = freq << 16;
1001 freq /= (intp->mclk / 1000);
1002 freq_s16 = (s16)freq;
1003 }
1004
1005 stv0900_write_bits(intp, CFR_UP1, MSB(freq_s16));
1006 stv0900_write_bits(intp, CFR_UP0, LSB(freq_s16));
1007 freq_s16 *= (-1);
1008 stv0900_write_bits(intp, CFR_LOW1, MSB(freq_s16));
1009 stv0900_write_bits(intp, CFR_LOW0, LSB(freq_s16));
1010 }
1011
1012 stv0900_write_reg(intp, CFRINIT1, 0);
1013 stv0900_write_reg(intp, CFRINIT0, 0);
1014
1015 if (intp->chip_id >= 0x20) {
1016 stv0900_write_reg(intp, EQUALCFG, 0x41);
1017 stv0900_write_reg(intp, FFECFG, 0x41);
1018
1019 if ((intp->srch_standard[demod] == STV0900_SEARCH_DVBS1) ||
1020 (intp->srch_standard[demod] == STV0900_SEARCH_DSS) ||
1021 (intp->srch_standard[demod] == STV0900_AUTO_SEARCH)) {
1022 stv0900_write_reg(intp, VITSCALE,
1023 0x82);
1024 stv0900_write_reg(intp, VAVSRVIT, 0x0);
1025 }
1026 }
1027
1028 stv0900_write_reg(intp, SFRSTEP, 0x00);
1029 stv0900_write_reg(intp, TMGTHRISE, 0xe0);
1030 stv0900_write_reg(intp, TMGTHFALL, 0xc0);
1031 stv0900_write_bits(intp, SCAN_ENABLE, 0);
1032 stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
1033 stv0900_write_bits(intp, S1S2_SEQUENTIAL, 0);
1034 stv0900_write_reg(intp, RTC, 0x88);
1035 if (intp->chip_id >= 0x20) {
1036 if (intp->symbol_rate[demod] < 2000000) {
1037 if (intp->chip_id <= 0x20)
1038 stv0900_write_reg(intp, CARFREQ, 0x39);
1039 else
1040 stv0900_write_reg(intp, CARFREQ, 0x89);
1041
1042 stv0900_write_reg(intp, CARHDR, 0x40);
1043 } else if (intp->symbol_rate[demod] < 10000000) {
1044 stv0900_write_reg(intp, CARFREQ, 0x4c);
1045 stv0900_write_reg(intp, CARHDR, 0x20);
1046 } else {
1047 stv0900_write_reg(intp, CARFREQ, 0x4b);
1048 stv0900_write_reg(intp, CARHDR, 0x20);
1049 }
1050
1051 } else {
1052 if (intp->symbol_rate[demod] < 10000000)
1053 stv0900_write_reg(intp, CARFREQ, 0xef);
1054 else
1055 stv0900_write_reg(intp, CARFREQ, 0xed);
1056 }
1057
1058 switch (intp->srch_algo[demod]) {
1059 case STV0900_WARM_START:
1060 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1061 stv0900_write_reg(intp, DMDISTATE, 0x18);
1062 break;
1063 case STV0900_COLD_START:
1064 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1065 stv0900_write_reg(intp, DMDISTATE, 0x15);
1066 break;
1067 default:
1068 break;
1069 }
1070}
1071
1072u8 stv0900_get_optim_carr_loop(s32 srate, enum fe_stv0900_modcode modcode,
1073 s32 pilot, u8 chip_id)
1074{
1075 u8 aclc_value = 0x29;
1076 s32 i, cllas2_size;
1077 const struct stv0900_car_loop_optim *cls2, *cllqs2, *cllas2;
1078
1079 dprintk("%s\n", __func__);
1080
1081 if (chip_id <= 0x12) {
1082 cls2 = FE_STV0900_S2CarLoop;
1083 cllqs2 = FE_STV0900_S2LowQPCarLoopCut30;
1084 cllas2 = FE_STV0900_S2APSKCarLoopCut30;
1085 cllas2_size = ARRAY_SIZE(FE_STV0900_S2APSKCarLoopCut30);
1086 } else if (chip_id == 0x20) {
1087 cls2 = FE_STV0900_S2CarLoopCut20;
1088 cllqs2 = FE_STV0900_S2LowQPCarLoopCut20;
1089 cllas2 = FE_STV0900_S2APSKCarLoopCut20;
1090 cllas2_size = ARRAY_SIZE(FE_STV0900_S2APSKCarLoopCut20);
1091 } else {
1092 cls2 = FE_STV0900_S2CarLoopCut30;
1093 cllqs2 = FE_STV0900_S2LowQPCarLoopCut30;
1094 cllas2 = FE_STV0900_S2APSKCarLoopCut30;
1095 cllas2_size = ARRAY_SIZE(FE_STV0900_S2APSKCarLoopCut30);
1096 }
1097
1098 if (modcode < STV0900_QPSK_12) {
1099 i = 0;
1100 while ((i < 3) && (modcode != cllqs2[i].modcode))
1101 i++;
1102
1103 if (i >= 3)
1104 i = 2;
1105 } else {
1106 i = 0;
1107 while ((i < 14) && (modcode != cls2[i].modcode))
1108 i++;
1109
1110 if (i >= 14) {
1111 i = 0;
1112 while ((i < 11) && (modcode != cllas2[i].modcode))
1113 i++;
1114
1115 if (i >= 11)
1116 i = 10;
1117 }
1118 }
1119
1120 if (modcode <= STV0900_QPSK_25) {
1121 if (pilot) {
1122 if (srate <= 3000000)
1123 aclc_value = cllqs2[i].car_loop_pilots_on_2;
1124 else if (srate <= 7000000)
1125 aclc_value = cllqs2[i].car_loop_pilots_on_5;
1126 else if (srate <= 15000000)
1127 aclc_value = cllqs2[i].car_loop_pilots_on_10;
1128 else if (srate <= 25000000)
1129 aclc_value = cllqs2[i].car_loop_pilots_on_20;
1130 else
1131 aclc_value = cllqs2[i].car_loop_pilots_on_30;
1132 } else {
1133 if (srate <= 3000000)
1134 aclc_value = cllqs2[i].car_loop_pilots_off_2;
1135 else if (srate <= 7000000)
1136 aclc_value = cllqs2[i].car_loop_pilots_off_5;
1137 else if (srate <= 15000000)
1138 aclc_value = cllqs2[i].car_loop_pilots_off_10;
1139 else if (srate <= 25000000)
1140 aclc_value = cllqs2[i].car_loop_pilots_off_20;
1141 else
1142 aclc_value = cllqs2[i].car_loop_pilots_off_30;
1143 }
1144
1145 } else if (modcode <= STV0900_8PSK_910) {
1146 if (pilot) {
1147 if (srate <= 3000000)
1148 aclc_value = cls2[i].car_loop_pilots_on_2;
1149 else if (srate <= 7000000)
1150 aclc_value = cls2[i].car_loop_pilots_on_5;
1151 else if (srate <= 15000000)
1152 aclc_value = cls2[i].car_loop_pilots_on_10;
1153 else if (srate <= 25000000)
1154 aclc_value = cls2[i].car_loop_pilots_on_20;
1155 else
1156 aclc_value = cls2[i].car_loop_pilots_on_30;
1157 } else {
1158 if (srate <= 3000000)
1159 aclc_value = cls2[i].car_loop_pilots_off_2;
1160 else if (srate <= 7000000)
1161 aclc_value = cls2[i].car_loop_pilots_off_5;
1162 else if (srate <= 15000000)
1163 aclc_value = cls2[i].car_loop_pilots_off_10;
1164 else if (srate <= 25000000)
1165 aclc_value = cls2[i].car_loop_pilots_off_20;
1166 else
1167 aclc_value = cls2[i].car_loop_pilots_off_30;
1168 }
1169
1170 } else if (i < cllas2_size) {
1171 if (srate <= 3000000)
1172 aclc_value = cllas2[i].car_loop_pilots_on_2;
1173 else if (srate <= 7000000)
1174 aclc_value = cllas2[i].car_loop_pilots_on_5;
1175 else if (srate <= 15000000)
1176 aclc_value = cllas2[i].car_loop_pilots_on_10;
1177 else if (srate <= 25000000)
1178 aclc_value = cllas2[i].car_loop_pilots_on_20;
1179 else
1180 aclc_value = cllas2[i].car_loop_pilots_on_30;
1181 }
1182
1183 return aclc_value;
1184}
1185
1186u8 stv0900_get_optim_short_carr_loop(s32 srate,
1187 enum fe_stv0900_modulation modulation,
1188 u8 chip_id)
1189{
1190 const struct stv0900_short_frames_car_loop_optim *s2scl;
1191 const struct stv0900_short_frames_car_loop_optim_vs_mod *s2sclc30;
1192 s32 mod_index = 0;
1193 u8 aclc_value = 0x0b;
1194
1195 dprintk("%s\n", __func__);
1196
1197 s2scl = FE_STV0900_S2ShortCarLoop;
1198 s2sclc30 = FE_STV0900_S2ShortCarLoopCut30;
1199
1200 switch (modulation) {
1201 case STV0900_QPSK:
1202 default:
1203 mod_index = 0;
1204 break;
1205 case STV0900_8PSK:
1206 mod_index = 1;
1207 break;
1208 case STV0900_16APSK:
1209 mod_index = 2;
1210 break;
1211 case STV0900_32APSK:
1212 mod_index = 3;
1213 break;
1214 }
1215
1216 if (chip_id >= 0x30) {
1217 if (srate <= 3000000)
1218 aclc_value = s2sclc30[mod_index].car_loop_2;
1219 else if (srate <= 7000000)
1220 aclc_value = s2sclc30[mod_index].car_loop_5;
1221 else if (srate <= 15000000)
1222 aclc_value = s2sclc30[mod_index].car_loop_10;
1223 else if (srate <= 25000000)
1224 aclc_value = s2sclc30[mod_index].car_loop_20;
1225 else
1226 aclc_value = s2sclc30[mod_index].car_loop_30;
1227
1228 } else if (chip_id >= 0x20) {
1229 if (srate <= 3000000)
1230 aclc_value = s2scl[mod_index].car_loop_cut20_2;
1231 else if (srate <= 7000000)
1232 aclc_value = s2scl[mod_index].car_loop_cut20_5;
1233 else if (srate <= 15000000)
1234 aclc_value = s2scl[mod_index].car_loop_cut20_10;
1235 else if (srate <= 25000000)
1236 aclc_value = s2scl[mod_index].car_loop_cut20_20;
1237 else
1238 aclc_value = s2scl[mod_index].car_loop_cut20_30;
1239
1240 } else {
1241 if (srate <= 3000000)
1242 aclc_value = s2scl[mod_index].car_loop_cut12_2;
1243 else if (srate <= 7000000)
1244 aclc_value = s2scl[mod_index].car_loop_cut12_5;
1245 else if (srate <= 15000000)
1246 aclc_value = s2scl[mod_index].car_loop_cut12_10;
1247 else if (srate <= 25000000)
1248 aclc_value = s2scl[mod_index].car_loop_cut12_20;
1249 else
1250 aclc_value = s2scl[mod_index].car_loop_cut12_30;
1251
1252 }
1253
1254 return aclc_value;
1255}
1256
1257static
1258enum fe_stv0900_error stv0900_st_dvbs2_single(struct stv0900_internal *intp,
1259 enum fe_stv0900_demod_mode LDPC_Mode,
1260 enum fe_stv0900_demod_num demod)
1261{
1262 s32 reg_ind;
1263
1264 dprintk("%s\n", __func__);
1265
1266 switch (LDPC_Mode) {
1267 case STV0900_DUAL:
1268 default:
1269 if ((intp->demod_mode != STV0900_DUAL)
1270 || (stv0900_get_bits(intp, F0900_DDEMOD) != 1)) {
1271 stv0900_write_reg(intp, R0900_GENCFG, 0x1d);
1272
1273 intp->demod_mode = STV0900_DUAL;
1274
1275 stv0900_write_bits(intp, F0900_FRESFEC, 1);
1276 stv0900_write_bits(intp, F0900_FRESFEC, 0);
1277
1278 for (reg_ind = 0; reg_ind < 7; reg_ind++)
1279 stv0900_write_reg(intp,
1280 R0900_P1_MODCODLST0 + reg_ind,
1281 0xff);
1282 for (reg_ind = 0; reg_ind < 8; reg_ind++)
1283 stv0900_write_reg(intp,
1284 R0900_P1_MODCODLST7 + reg_ind,
1285 0xcc);
1286
1287 stv0900_write_reg(intp, R0900_P1_MODCODLSTE, 0xff);
1288 stv0900_write_reg(intp, R0900_P1_MODCODLSTF, 0xcf);
1289
1290 for (reg_ind = 0; reg_ind < 7; reg_ind++)
1291 stv0900_write_reg(intp,
1292 R0900_P2_MODCODLST0 + reg_ind,
1293 0xff);
1294 for (reg_ind = 0; reg_ind < 8; reg_ind++)
1295 stv0900_write_reg(intp,
1296 R0900_P2_MODCODLST7 + reg_ind,
1297 0xcc);
1298
1299 stv0900_write_reg(intp, R0900_P2_MODCODLSTE, 0xff);
1300 stv0900_write_reg(intp, R0900_P2_MODCODLSTF, 0xcf);
1301 }
1302
1303 break;
1304 case STV0900_SINGLE:
1305 if (demod == STV0900_DEMOD_2) {
1306 stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_1);
1307 stv0900_activate_s2_modcod_single(intp,
1308 STV0900_DEMOD_2);
1309 stv0900_write_reg(intp, R0900_GENCFG, 0x06);
1310 } else {
1311 stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_2);
1312 stv0900_activate_s2_modcod_single(intp,
1313 STV0900_DEMOD_1);
1314 stv0900_write_reg(intp, R0900_GENCFG, 0x04);
1315 }
1316
1317 intp->demod_mode = STV0900_SINGLE;
1318
1319 stv0900_write_bits(intp, F0900_FRESFEC, 1);
1320 stv0900_write_bits(intp, F0900_FRESFEC, 0);
1321 stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 1);
1322 stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 0);
1323 stv0900_write_bits(intp, F0900_P2_ALGOSWRST, 1);
1324 stv0900_write_bits(intp, F0900_P2_ALGOSWRST, 0);
1325 break;
1326 }
1327
1328 return STV0900_NO_ERROR;
1329}
1330
1331static enum fe_stv0900_error stv0900_init_internal(struct dvb_frontend *fe,
1332 struct stv0900_init_params *p_init)
1333{
1334 struct stv0900_state *state = fe->demodulator_priv;
1335 enum fe_stv0900_error error = STV0900_NO_ERROR;
1336 enum fe_stv0900_error demodError = STV0900_NO_ERROR;
1337 struct stv0900_internal *intp = NULL;
1338 int selosci, i;
1339
1340 struct stv0900_inode *temp_int = find_inode(state->i2c_adap,
1341 state->config->demod_address);
1342
1343 dprintk("%s\n", __func__);
1344
1345 if ((temp_int != NULL) && (p_init->demod_mode == STV0900_DUAL)) {
1346 state->internal = temp_int->internal;
1347 (state->internal->dmds_used)++;
1348 dprintk("%s: Find Internal Structure!\n", __func__);
1349 return STV0900_NO_ERROR;
1350 } else {
1351 state->internal = kmalloc(sizeof(struct stv0900_internal),
1352 GFP_KERNEL);
1353 if (state->internal == NULL)
1354 return STV0900_INVALID_HANDLE;
1355 temp_int = append_internal(state->internal);
1356 if (temp_int == NULL) {
1357 kfree(state->internal);
1358 state->internal = NULL;
1359 return STV0900_INVALID_HANDLE;
1360 }
1361 state->internal->dmds_used = 1;
1362 state->internal->i2c_adap = state->i2c_adap;
1363 state->internal->i2c_addr = state->config->demod_address;
1364 state->internal->clkmode = state->config->clkmode;
1365 state->internal->errs = STV0900_NO_ERROR;
1366 dprintk("%s: Create New Internal Structure!\n", __func__);
1367 }
1368
1369 if (state->internal == NULL) {
1370 error = STV0900_INVALID_HANDLE;
1371 return error;
1372 }
1373
1374 demodError = stv0900_initialize(state->internal);
1375 if (demodError == STV0900_NO_ERROR) {
1376 error = STV0900_NO_ERROR;
1377 } else {
1378 if (demodError == STV0900_INVALID_HANDLE)
1379 error = STV0900_INVALID_HANDLE;
1380 else
1381 error = STV0900_I2C_ERROR;
1382
1383 return error;
1384 }
1385
1386 intp = state->internal;
1387
1388 intp->demod_mode = p_init->demod_mode;
1389 stv0900_st_dvbs2_single(intp, intp->demod_mode, STV0900_DEMOD_1);
1390 intp->chip_id = stv0900_read_reg(intp, R0900_MID);
1391 intp->rolloff = p_init->rolloff;
1392 intp->quartz = p_init->dmd_ref_clk;
1393
1394 stv0900_write_bits(intp, F0900_P1_ROLLOFF_CONTROL, p_init->rolloff);
1395 stv0900_write_bits(intp, F0900_P2_ROLLOFF_CONTROL, p_init->rolloff);
1396
1397 intp->ts_config = p_init->ts_config;
1398 if (intp->ts_config == NULL)
1399 stv0900_set_ts_parallel_serial(intp,
1400 p_init->path1_ts_clock,
1401 p_init->path2_ts_clock);
1402 else {
1403 for (i = 0; intp->ts_config[i].addr != 0xffff; i++)
1404 stv0900_write_reg(intp,
1405 intp->ts_config[i].addr,
1406 intp->ts_config[i].val);
1407
1408 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 1);
1409 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 0);
1410 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 1);
1411 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 0);
1412 }
1413
1414 intp->tuner_type[0] = p_init->tuner1_type;
1415 intp->tuner_type[1] = p_init->tuner2_type;
1416
1417 switch (p_init->tuner1_type) {
1418 case 3:
1419 stv0900_write_reg(intp, R0900_P1_TNRCFG, 0x3c);
1420 stv0900_write_reg(intp, R0900_P1_TNRCFG2, 0x86);
1421 stv0900_write_reg(intp, R0900_P1_TNRCFG3, 0x18);
1422 stv0900_write_reg(intp, R0900_P1_TNRXTAL, 27);
1423 stv0900_write_reg(intp, R0900_P1_TNRSTEPS, 0x05);
1424 stv0900_write_reg(intp, R0900_P1_TNRGAIN, 0x17);
1425 stv0900_write_reg(intp, R0900_P1_TNRADJ, 0x1f);
1426 stv0900_write_reg(intp, R0900_P1_TNRCTL2, 0x0);
1427 stv0900_write_bits(intp, F0900_P1_TUN_TYPE, 3);
1428 break;
1429
1430 default:
1431 stv0900_write_bits(intp, F0900_P1_TUN_TYPE, 6);
1432 break;
1433 }
1434
1435 stv0900_write_bits(intp, F0900_P1_TUN_MADDRESS, p_init->tun1_maddress);
1436 switch (p_init->tuner1_adc) {
1437 case 1:
1438 stv0900_write_reg(intp, R0900_TSTTNR1, 0x26);
1439 break;
1440 default:
1441 break;
1442 }
1443
1444 stv0900_write_reg(intp, R0900_P1_TNRLD, 1);
1445
1446
1447 switch (p_init->tuner2_type) {
1448 case 3:
1449 stv0900_write_reg(intp, R0900_P2_TNRCFG, 0x3c);
1450 stv0900_write_reg(intp, R0900_P2_TNRCFG2, 0x86);
1451 stv0900_write_reg(intp, R0900_P2_TNRCFG3, 0x18);
1452 stv0900_write_reg(intp, R0900_P2_TNRXTAL, 27);
1453 stv0900_write_reg(intp, R0900_P2_TNRSTEPS, 0x05);
1454 stv0900_write_reg(intp, R0900_P2_TNRGAIN, 0x17);
1455 stv0900_write_reg(intp, R0900_P2_TNRADJ, 0x1f);
1456 stv0900_write_reg(intp, R0900_P2_TNRCTL2, 0x0);
1457 stv0900_write_bits(intp, F0900_P2_TUN_TYPE, 3);
1458 break;
1459
1460 default:
1461 stv0900_write_bits(intp, F0900_P2_TUN_TYPE, 6);
1462 break;
1463 }
1464
1465 stv0900_write_bits(intp, F0900_P2_TUN_MADDRESS, p_init->tun2_maddress);
1466 switch (p_init->tuner2_adc) {
1467 case 1:
1468 stv0900_write_reg(intp, R0900_TSTTNR3, 0x26);
1469 break;
1470 default:
1471 break;
1472 }
1473
1474 stv0900_write_reg(intp, R0900_P2_TNRLD, 1);
1475
1476 stv0900_write_bits(intp, F0900_P1_TUN_IQSWAP, p_init->tun1_iq_inv);
1477 stv0900_write_bits(intp, F0900_P2_TUN_IQSWAP, p_init->tun2_iq_inv);
1478 stv0900_set_mclk(intp, 135000000);
1479 msleep(3);
1480
1481 switch (intp->clkmode) {
1482 case 0:
1483 case 2:
1484 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | intp->clkmode);
1485 break;
1486 default:
1487 selosci = 0x02 & stv0900_read_reg(intp, R0900_SYNTCTRL);
1488 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | selosci);
1489 break;
1490 }
1491 msleep(3);
1492
1493 intp->mclk = stv0900_get_mclk_freq(intp, intp->quartz);
1494 if (intp->errs)
1495 error = STV0900_I2C_ERROR;
1496
1497 return error;
1498}
1499
1500static int stv0900_status(struct stv0900_internal *intp,
1501 enum fe_stv0900_demod_num demod)
1502{
1503 enum fe_stv0900_search_state demod_state;
1504 int locked = FALSE;
1505 u8 tsbitrate0_val, tsbitrate1_val;
1506 s32 bitrate;
1507
1508 demod_state = stv0900_get_bits(intp, HEADER_MODE);
1509 switch (demod_state) {
1510 case STV0900_SEARCH:
1511 case STV0900_PLH_DETECTED:
1512 default:
1513 locked = FALSE;
1514 break;
1515 case STV0900_DVBS2_FOUND:
1516 locked = stv0900_get_bits(intp, LOCK_DEFINITIF) &&
1517 stv0900_get_bits(intp, PKTDELIN_LOCK) &&
1518 stv0900_get_bits(intp, TSFIFO_LINEOK);
1519 break;
1520 case STV0900_DVBS_FOUND:
1521 locked = stv0900_get_bits(intp, LOCK_DEFINITIF) &&
1522 stv0900_get_bits(intp, LOCKEDVIT) &&
1523 stv0900_get_bits(intp, TSFIFO_LINEOK);
1524 break;
1525 }
1526
1527 dprintk("%s: locked = %d\n", __func__, locked);
1528
1529 if (stvdebug) {
1530
1531 tsbitrate0_val = stv0900_read_reg(intp, TSBITRATE0);
1532 tsbitrate1_val = stv0900_read_reg(intp, TSBITRATE1);
1533
1534 bitrate = (stv0900_get_mclk_freq(intp, intp->quartz)/1000000)
1535 * (tsbitrate1_val << 8 | tsbitrate0_val);
1536 bitrate /= 16384;
1537 dprintk("TS bitrate = %d Mbit/sec\n", bitrate);
1538 }
1539
1540 return locked;
1541}
1542
1543static int stv0900_set_mis(struct stv0900_internal *intp,
1544 enum fe_stv0900_demod_num demod, int mis)
1545{
1546 dprintk("%s\n", __func__);
1547
1548 if (mis < 0 || mis > 255) {
1549 dprintk("Disable MIS filtering\n");
1550 stv0900_write_bits(intp, FILTER_EN, 0);
1551 } else {
1552 dprintk("Enable MIS filtering - %d\n", mis);
1553 stv0900_write_bits(intp, FILTER_EN, 1);
1554 stv0900_write_reg(intp, ISIENTRY, mis);
1555 stv0900_write_reg(intp, ISIBITENA, 0xff);
1556 }
1557
1558 return STV0900_NO_ERROR;
1559}
1560
1561
1562static enum dvbfe_search stv0900_search(struct dvb_frontend *fe)
1563{
1564 struct stv0900_state *state = fe->demodulator_priv;
1565 struct stv0900_internal *intp = state->internal;
1566 enum fe_stv0900_demod_num demod = state->demod;
1567 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
1568
1569 struct stv0900_search_params p_search;
1570 struct stv0900_signal_info p_result = intp->result[demod];
1571
1572 enum fe_stv0900_error error = STV0900_NO_ERROR;
1573
1574 dprintk("%s: ", __func__);
1575
1576 if (!(INRANGE(100000, c->symbol_rate, 70000000)))
1577 return DVBFE_ALGO_SEARCH_FAILED;
1578
1579 if (state->config->set_ts_params)
1580 state->config->set_ts_params(fe, 0);
1581
1582 stv0900_set_mis(intp, demod, c->stream_id);
1583
1584 p_result.locked = FALSE;
1585 p_search.path = demod;
1586 p_search.frequency = c->frequency;
1587 p_search.symbol_rate = c->symbol_rate;
1588 p_search.search_range = 10000000;
1589 p_search.fec = STV0900_FEC_UNKNOWN;
1590 p_search.standard = STV0900_AUTO_SEARCH;
1591 p_search.iq_inversion = STV0900_IQ_AUTO;
1592 p_search.search_algo = STV0900_BLIND_SEARCH;
1593
1594 if (c->delivery_system == SYS_DVBS)
1595 p_search.standard = STV0900_SEARCH_DVBS1;
1596
1597 intp->srch_standard[demod] = p_search.standard;
1598 intp->symbol_rate[demod] = p_search.symbol_rate;
1599 intp->srch_range[demod] = p_search.search_range;
1600 intp->freq[demod] = p_search.frequency;
1601 intp->srch_algo[demod] = p_search.search_algo;
1602 intp->srch_iq_inv[demod] = p_search.iq_inversion;
1603 intp->fec[demod] = p_search.fec;
1604 if ((stv0900_algo(fe) == STV0900_RANGEOK) &&
1605 (intp->errs == STV0900_NO_ERROR)) {
1606 p_result.locked = intp->result[demod].locked;
1607 p_result.standard = intp->result[demod].standard;
1608 p_result.frequency = intp->result[demod].frequency;
1609 p_result.symbol_rate = intp->result[demod].symbol_rate;
1610 p_result.fec = intp->result[demod].fec;
1611 p_result.modcode = intp->result[demod].modcode;
1612 p_result.pilot = intp->result[demod].pilot;
1613 p_result.frame_len = intp->result[demod].frame_len;
1614 p_result.spectrum = intp->result[demod].spectrum;
1615 p_result.rolloff = intp->result[demod].rolloff;
1616 p_result.modulation = intp->result[demod].modulation;
1617 } else {
1618 p_result.locked = FALSE;
1619 switch (intp->err[demod]) {
1620 case STV0900_I2C_ERROR:
1621 error = STV0900_I2C_ERROR;
1622 break;
1623 case STV0900_NO_ERROR:
1624 default:
1625 error = STV0900_SEARCH_FAILED;
1626 break;
1627 }
1628 }
1629
1630 if ((p_result.locked == TRUE) && (error == STV0900_NO_ERROR)) {
1631 dprintk("Search Success\n");
1632 return DVBFE_ALGO_SEARCH_SUCCESS;
1633 } else {
1634 dprintk("Search Fail\n");
1635 return DVBFE_ALGO_SEARCH_FAILED;
1636 }
1637
1638}
1639
1640static int stv0900_read_status(struct dvb_frontend *fe, enum fe_status *status)
1641{
1642 struct stv0900_state *state = fe->demodulator_priv;
1643
1644 dprintk("%s: ", __func__);
1645
1646 if ((stv0900_status(state->internal, state->demod)) == TRUE) {
1647 dprintk("DEMOD LOCK OK\n");
1648 *status = FE_HAS_CARRIER
1649 | FE_HAS_VITERBI
1650 | FE_HAS_SYNC
1651 | FE_HAS_LOCK;
1652 if (state->config->set_lock_led)
1653 state->config->set_lock_led(fe, 1);
1654 } else {
1655 *status = 0;
1656 if (state->config->set_lock_led)
1657 state->config->set_lock_led(fe, 0);
1658 dprintk("DEMOD LOCK FAIL\n");
1659 }
1660
1661 return 0;
1662}
1663
1664static int stv0900_stop_ts(struct dvb_frontend *fe, int stop_ts)
1665{
1666
1667 struct stv0900_state *state = fe->demodulator_priv;
1668 struct stv0900_internal *intp = state->internal;
1669 enum fe_stv0900_demod_num demod = state->demod;
1670
1671 if (stop_ts == TRUE)
1672 stv0900_write_bits(intp, RST_HWARE, 1);
1673 else
1674 stv0900_write_bits(intp, RST_HWARE, 0);
1675
1676 return 0;
1677}
1678
1679static int stv0900_diseqc_init(struct dvb_frontend *fe)
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 stv0900_write_bits(intp, DISTX_MODE, state->config->diseqc_mode);
1686 stv0900_write_bits(intp, DISEQC_RESET, 1);
1687 stv0900_write_bits(intp, DISEQC_RESET, 0);
1688
1689 return 0;
1690}
1691
1692static int stv0900_init(struct dvb_frontend *fe)
1693{
1694 dprintk("%s\n", __func__);
1695
1696 stv0900_stop_ts(fe, 1);
1697 stv0900_diseqc_init(fe);
1698
1699 return 0;
1700}
1701
1702static int stv0900_diseqc_send(struct stv0900_internal *intp , u8 *data,
1703 u32 NbData, enum fe_stv0900_demod_num demod)
1704{
1705 s32 i = 0;
1706
1707 stv0900_write_bits(intp, DIS_PRECHARGE, 1);
1708 while (i < NbData) {
1709 while (stv0900_get_bits(intp, FIFO_FULL))
1710 ;
1711 stv0900_write_reg(intp, DISTXDATA, data[i]);
1712 i++;
1713 }
1714
1715 stv0900_write_bits(intp, DIS_PRECHARGE, 0);
1716 i = 0;
1717 while ((stv0900_get_bits(intp, TX_IDLE) != 1) && (i < 10)) {
1718 msleep(10);
1719 i++;
1720 }
1721
1722 return 0;
1723}
1724
1725static int stv0900_send_master_cmd(struct dvb_frontend *fe,
1726 struct dvb_diseqc_master_cmd *cmd)
1727{
1728 struct stv0900_state *state = fe->demodulator_priv;
1729
1730 return stv0900_diseqc_send(state->internal,
1731 cmd->msg,
1732 cmd->msg_len,
1733 state->demod);
1734}
1735
1736static int stv0900_send_burst(struct dvb_frontend *fe,
1737 enum fe_sec_mini_cmd burst)
1738{
1739 struct stv0900_state *state = fe->demodulator_priv;
1740 struct stv0900_internal *intp = state->internal;
1741 enum fe_stv0900_demod_num demod = state->demod;
1742 u8 data;
1743
1744
1745 switch (burst) {
1746 case SEC_MINI_A:
1747 stv0900_write_bits(intp, DISTX_MODE, 3);
1748 data = 0x00;
1749 stv0900_diseqc_send(intp, &data, 1, state->demod);
1750 break;
1751 case SEC_MINI_B:
1752 stv0900_write_bits(intp, DISTX_MODE, 2);
1753 data = 0xff;
1754 stv0900_diseqc_send(intp, &data, 1, state->demod);
1755 break;
1756 }
1757
1758 return 0;
1759}
1760
1761static int stv0900_recv_slave_reply(struct dvb_frontend *fe,
1762 struct dvb_diseqc_slave_reply *reply)
1763{
1764 struct stv0900_state *state = fe->demodulator_priv;
1765 struct stv0900_internal *intp = state->internal;
1766 enum fe_stv0900_demod_num demod = state->demod;
1767 s32 i = 0;
1768
1769 reply->msg_len = 0;
1770
1771 while ((stv0900_get_bits(intp, RX_END) != 1) && (i < 10)) {
1772 msleep(10);
1773 i++;
1774 }
1775
1776 if (stv0900_get_bits(intp, RX_END)) {
1777 reply->msg_len = stv0900_get_bits(intp, FIFO_BYTENBR);
1778
1779 for (i = 0; i < reply->msg_len; i++)
1780 reply->msg[i] = stv0900_read_reg(intp, DISRXDATA);
1781 }
1782
1783 return 0;
1784}
1785
1786static int stv0900_set_tone(struct dvb_frontend *fe,
1787 enum fe_sec_tone_mode toneoff)
1788{
1789 struct stv0900_state *state = fe->demodulator_priv;
1790 struct stv0900_internal *intp = state->internal;
1791 enum fe_stv0900_demod_num demod = state->demod;
1792
1793 dprintk("%s: %s\n", __func__, ((toneoff == 0) ? "On" : "Off"));
1794
1795 switch (toneoff) {
1796 case SEC_TONE_ON:
1797
1798 stv0900_write_bits(intp, DISTX_MODE, 0);
1799 stv0900_write_bits(intp, DISEQC_RESET, 1);
1800
1801 stv0900_write_bits(intp, DISEQC_RESET, 0);
1802 break;
1803 case SEC_TONE_OFF:
1804
1805
1806 stv0900_write_bits(intp, DISTX_MODE,
1807 state->config->diseqc_mode);
1808
1809 stv0900_write_bits(intp, DISEQC_RESET, 1);
1810 stv0900_write_bits(intp, DISEQC_RESET, 0);
1811 break;
1812 default:
1813 return -EINVAL;
1814 }
1815
1816 return 0;
1817}
1818
1819static void stv0900_release(struct dvb_frontend *fe)
1820{
1821 struct stv0900_state *state = fe->demodulator_priv;
1822
1823 dprintk("%s\n", __func__);
1824
1825 if (state->config->set_lock_led)
1826 state->config->set_lock_led(fe, 0);
1827
1828 if ((--(state->internal->dmds_used)) <= 0) {
1829
1830 dprintk("%s: Actually removing\n", __func__);
1831
1832 remove_inode(state->internal);
1833 kfree(state->internal);
1834 }
1835
1836 kfree(state);
1837}
1838
1839static int stv0900_sleep(struct dvb_frontend *fe)
1840{
1841 struct stv0900_state *state = fe->demodulator_priv;
1842
1843 dprintk("%s\n", __func__);
1844
1845 if (state->config->set_lock_led)
1846 state->config->set_lock_led(fe, 0);
1847
1848 return 0;
1849}
1850
1851static int stv0900_get_frontend(struct dvb_frontend *fe,
1852 struct dtv_frontend_properties *p)
1853{
1854 struct stv0900_state *state = fe->demodulator_priv;
1855 struct stv0900_internal *intp = state->internal;
1856 enum fe_stv0900_demod_num demod = state->demod;
1857 struct stv0900_signal_info p_result = intp->result[demod];
1858
1859 p->frequency = p_result.locked ? p_result.frequency : 0;
1860 p->symbol_rate = p_result.locked ? p_result.symbol_rate : 0;
1861 return 0;
1862}
1863
1864static const struct dvb_frontend_ops stv0900_ops = {
1865 .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
1866 .info = {
1867 .name = "STV0900 frontend",
1868 .frequency_min_hz = 950 * MHz,
1869 .frequency_max_hz = 2150 * MHz,
1870 .frequency_stepsize_hz = 125 * kHz,
1871 .symbol_rate_min = 1000000,
1872 .symbol_rate_max = 45000000,
1873 .symbol_rate_tolerance = 500,
1874 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
1875 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 |
1876 FE_CAN_FEC_7_8 | FE_CAN_QPSK |
1877 FE_CAN_2G_MODULATION |
1878 FE_CAN_FEC_AUTO
1879 },
1880 .release = stv0900_release,
1881 .init = stv0900_init,
1882 .get_frontend = stv0900_get_frontend,
1883 .sleep = stv0900_sleep,
1884 .get_frontend_algo = stv0900_frontend_algo,
1885 .i2c_gate_ctrl = stv0900_i2c_gate_ctrl,
1886 .diseqc_send_master_cmd = stv0900_send_master_cmd,
1887 .diseqc_send_burst = stv0900_send_burst,
1888 .diseqc_recv_slave_reply = stv0900_recv_slave_reply,
1889 .set_tone = stv0900_set_tone,
1890 .search = stv0900_search,
1891 .read_status = stv0900_read_status,
1892 .read_ber = stv0900_read_ber,
1893 .read_signal_strength = stv0900_read_signal_strength,
1894 .read_snr = stv0900_read_snr,
1895 .read_ucblocks = stv0900_read_ucblocks,
1896};
1897
1898struct dvb_frontend *stv0900_attach(const struct stv0900_config *config,
1899 struct i2c_adapter *i2c,
1900 int demod)
1901{
1902 struct stv0900_state *state = NULL;
1903 struct stv0900_init_params init_params;
1904 enum fe_stv0900_error err_stv0900;
1905
1906 state = kzalloc(sizeof(struct stv0900_state), GFP_KERNEL);
1907 if (state == NULL)
1908 goto error;
1909
1910 state->demod = demod;
1911 state->config = config;
1912 state->i2c_adap = i2c;
1913
1914 memcpy(&state->frontend.ops, &stv0900_ops,
1915 sizeof(struct dvb_frontend_ops));
1916 state->frontend.demodulator_priv = state;
1917
1918 switch (demod) {
1919 case 0:
1920 case 1:
1921 init_params.dmd_ref_clk = config->xtal;
1922 init_params.demod_mode = config->demod_mode;
1923 init_params.rolloff = STV0900_35;
1924 init_params.path1_ts_clock = config->path1_mode;
1925 init_params.tun1_maddress = config->tun1_maddress;
1926 init_params.tun1_iq_inv = STV0900_IQ_NORMAL;
1927 init_params.tuner1_adc = config->tun1_adc;
1928 init_params.tuner1_type = config->tun1_type;
1929 init_params.path2_ts_clock = config->path2_mode;
1930 init_params.ts_config = config->ts_config_regs;
1931 init_params.tun2_maddress = config->tun2_maddress;
1932 init_params.tuner2_adc = config->tun2_adc;
1933 init_params.tuner2_type = config->tun2_type;
1934 init_params.tun2_iq_inv = STV0900_IQ_SWAPPED;
1935
1936 err_stv0900 = stv0900_init_internal(&state->frontend,
1937 &init_params);
1938
1939 if (err_stv0900)
1940 goto error;
1941
1942 if (state->internal->chip_id >= 0x30)
1943 state->frontend.ops.info.caps |= FE_CAN_MULTISTREAM;
1944
1945 break;
1946 default:
1947 goto error;
1948 break;
1949 }
1950
1951 dprintk("%s: Attaching STV0900 demodulator(%d) \n", __func__, demod);
1952 return &state->frontend;
1953
1954error:
1955 dprintk("%s: Failed to attach STV0900 demodulator(%d) \n",
1956 __func__, demod);
1957 kfree(state);
1958 return NULL;
1959}
1960EXPORT_SYMBOL(stv0900_attach);
1961
1962MODULE_PARM_DESC(debug, "Set debug");
1963
1964MODULE_AUTHOR("Igor M. Liplianin");
1965MODULE_DESCRIPTION("ST STV0900 frontend");
1966MODULE_LICENSE("GPL");
1967
