1 /*
2 * stv0900_core.c
3 *
4 * Driver for ST STV0900 satellite demodulator IC.
5 *
6 * Copyright (C) ST Microelectronics.
7 * Copyright (C) 2009 NetUP Inc.
8 * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 *
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/string.h>
29 #include <linux/slab.h>
30 #include <linux/i2c.h>
31
32 #include "stv0900.h"
33 #include "stv0900_reg.h"
34 #include "stv0900_priv.h"
35 #include "stv0900_init.h"
36
37 int stvdebug = 1;
38 module_param_named(debug, stvdebug, int, 0644);
39
40 /* internal params node */
41 struct stv0900_inode {
42 /* pointer for internal params, one for each pair of demods */
43 struct stv0900_internal *internal;
44 struct stv0900_inode *next_inode;
45 };
46
47 /* first internal params */
48 static struct stv0900_inode *stv0900_first_inode;
49
50 /* find chip by i2c adapter and i2c address */
find_inode(struct i2c_adapter * i2c_adap,u8 i2c_addr)51 static struct stv0900_inode *find_inode(struct i2c_adapter *i2c_adap,
52 u8 i2c_addr)
53 {
54 struct stv0900_inode *temp_chip = stv0900_first_inode;
55
56 if (temp_chip != NULL) {
57 /*
58 Search of the last stv0900 chip or
59 find it by i2c adapter and i2c address */
60 while ((temp_chip != NULL) &&
61 ((temp_chip->internal->i2c_adap != i2c_adap) ||
62 (temp_chip->internal->i2c_addr != i2c_addr)))
63
64 temp_chip = temp_chip->next_inode;
65
66 }
67
68 return temp_chip;
69 }
70
71 /* deallocating chip */
remove_inode(struct stv0900_internal * internal)72 static void remove_inode(struct stv0900_internal *internal)
73 {
74 struct stv0900_inode *prev_node = stv0900_first_inode;
75 struct stv0900_inode *del_node = find_inode(internal->i2c_adap,
76 internal->i2c_addr);
77
78 if (del_node != NULL) {
79 if (del_node == stv0900_first_inode) {
80 stv0900_first_inode = del_node->next_inode;
81 } else {
82 while (prev_node->next_inode != del_node)
83 prev_node = prev_node->next_inode;
84
85 if (del_node->next_inode == NULL)
86 prev_node->next_inode = NULL;
87 else
88 prev_node->next_inode =
89 prev_node->next_inode->next_inode;
90 }
91
92 kfree(del_node);
93 }
94 }
95
96 /* allocating new chip */
append_internal(struct stv0900_internal * internal)97 static struct stv0900_inode *append_internal(struct stv0900_internal *internal)
98 {
99 struct stv0900_inode *new_node = stv0900_first_inode;
100
101 if (new_node == NULL) {
102 new_node = kmalloc(sizeof(struct stv0900_inode), GFP_KERNEL);
103 stv0900_first_inode = new_node;
104 } else {
105 while (new_node->next_inode != NULL)
106 new_node = new_node->next_inode;
107
108 new_node->next_inode = kmalloc(sizeof(struct stv0900_inode),
109 GFP_KERNEL);
110 if (new_node->next_inode != NULL)
111 new_node = new_node->next_inode;
112 else
113 new_node = NULL;
114 }
115
116 if (new_node != NULL) {
117 new_node->internal = internal;
118 new_node->next_inode = NULL;
119 }
120
121 return new_node;
122 }
123
ge2comp(s32 a,s32 width)124 s32 ge2comp(s32 a, s32 width)
125 {
126 if (width == 32)
127 return a;
128 else
129 return (a >= (1 << (width - 1))) ? (a - (1 << width)) : a;
130 }
131
stv0900_write_reg(struct stv0900_internal * intp,u16 reg_addr,u8 reg_data)132 void stv0900_write_reg(struct stv0900_internal *intp, u16 reg_addr,
133 u8 reg_data)
134 {
135 u8 data[3];
136 int ret;
137 struct i2c_msg i2cmsg = {
138 .addr = intp->i2c_addr,
139 .flags = 0,
140 .len = 3,
141 .buf = data,
142 };
143
144 data[0] = MSB(reg_addr);
145 data[1] = LSB(reg_addr);
146 data[2] = reg_data;
147
148 ret = i2c_transfer(intp->i2c_adap, &i2cmsg, 1);
149 if (ret != 1)
150 dprintk("%s: i2c error %d\n", __func__, ret);
151 }
152
stv0900_read_reg(struct stv0900_internal * intp,u16 reg)153 u8 stv0900_read_reg(struct stv0900_internal *intp, u16 reg)
154 {
155 int ret;
156 u8 b0[] = { MSB(reg), LSB(reg) };
157 u8 buf = 0;
158 struct i2c_msg msg[] = {
159 {
160 .addr = intp->i2c_addr,
161 .flags = 0,
162 .buf = b0,
163 .len = 2,
164 }, {
165 .addr = intp->i2c_addr,
166 .flags = I2C_M_RD,
167 .buf = &buf,
168 .len = 1,
169 },
170 };
171
172 ret = i2c_transfer(intp->i2c_adap, msg, 2);
173 if (ret != 2)
174 dprintk("%s: i2c error %d, reg[0x%02x]\n",
175 __func__, ret, reg);
176
177 return buf;
178 }
179
extract_mask_pos(u32 label,u8 * mask,u8 * pos)180 static void extract_mask_pos(u32 label, u8 *mask, u8 *pos)
181 {
182 u8 position = 0, i = 0;
183
184 (*mask) = label & 0xff;
185
186 while ((position == 0) && (i < 8)) {
187 position = ((*mask) >> i) & 0x01;
188 i++;
189 }
190
191 (*pos) = (i - 1);
192 }
193
stv0900_write_bits(struct stv0900_internal * intp,u32 label,u8 val)194 void stv0900_write_bits(struct stv0900_internal *intp, u32 label, u8 val)
195 {
196 u8 reg, mask, pos;
197
198 reg = stv0900_read_reg(intp, (label >> 16) & 0xffff);
199 extract_mask_pos(label, &mask, &pos);
200
201 val = mask & (val << pos);
202
203 reg = (reg & (~mask)) | val;
204 stv0900_write_reg(intp, (label >> 16) & 0xffff, reg);
205
206 }
207
stv0900_get_bits(struct stv0900_internal * intp,u32 label)208 u8 stv0900_get_bits(struct stv0900_internal *intp, u32 label)
209 {
210 u8 val = 0xff;
211 u8 mask, pos;
212
213 extract_mask_pos(label, &mask, &pos);
214
215 val = stv0900_read_reg(intp, label >> 16);
216 val = (val & mask) >> pos;
217
218 return val;
219 }
220
stv0900_initialize(struct stv0900_internal * intp)221 static enum fe_stv0900_error stv0900_initialize(struct stv0900_internal *intp)
222 {
223 s32 i;
224
225 if (intp == NULL)
226 return STV0900_INVALID_HANDLE;
227
228 intp->chip_id = stv0900_read_reg(intp, R0900_MID);
229
230 if (intp->errs != STV0900_NO_ERROR)
231 return intp->errs;
232
233 /*Startup sequence*/
234 stv0900_write_reg(intp, R0900_P1_DMDISTATE, 0x5c);
235 stv0900_write_reg(intp, R0900_P2_DMDISTATE, 0x5c);
236 msleep(3);
237 stv0900_write_reg(intp, R0900_P1_TNRCFG, 0x6c);
238 stv0900_write_reg(intp, R0900_P2_TNRCFG, 0x6f);
239 stv0900_write_reg(intp, R0900_P1_I2CRPT, 0x20);
240 stv0900_write_reg(intp, R0900_P2_I2CRPT, 0x20);
241 stv0900_write_reg(intp, R0900_NCOARSE, 0x13);
242 msleep(3);
243 stv0900_write_reg(intp, R0900_I2CCFG, 0x08);
244
245 switch (intp->clkmode) {
246 case 0:
247 case 2:
248 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20
249 | intp->clkmode);
250 break;
251 default:
252 /* preserve SELOSCI bit */
253 i = 0x02 & stv0900_read_reg(intp, R0900_SYNTCTRL);
254 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | i);
255 break;
256 }
257
258 msleep(3);
259 for (i = 0; i < 181; i++)
260 stv0900_write_reg(intp, STV0900_InitVal[i][0],
261 STV0900_InitVal[i][1]);
262
263 if (stv0900_read_reg(intp, R0900_MID) >= 0x20) {
264 stv0900_write_reg(intp, R0900_TSGENERAL, 0x0c);
265 for (i = 0; i < 32; i++)
266 stv0900_write_reg(intp, STV0900_Cut20_AddOnVal[i][0],
267 STV0900_Cut20_AddOnVal[i][1]);
268 }
269
270 stv0900_write_reg(intp, R0900_P1_FSPYCFG, 0x6c);
271 stv0900_write_reg(intp, R0900_P2_FSPYCFG, 0x6c);
272
273 stv0900_write_reg(intp, R0900_P1_PDELCTRL2, 0x01);
274 stv0900_write_reg(intp, R0900_P2_PDELCTRL2, 0x21);
275
276 stv0900_write_reg(intp, R0900_P1_PDELCTRL3, 0x20);
277 stv0900_write_reg(intp, R0900_P2_PDELCTRL3, 0x20);
278
279 stv0900_write_reg(intp, R0900_TSTRES0, 0x80);
280 stv0900_write_reg(intp, R0900_TSTRES0, 0x00);
281
282 return STV0900_NO_ERROR;
283 }
284
stv0900_get_mclk_freq(struct stv0900_internal * intp,u32 ext_clk)285 static u32 stv0900_get_mclk_freq(struct stv0900_internal *intp, u32 ext_clk)
286 {
287 u32 mclk = 90000000, div = 0, ad_div = 0;
288
289 div = stv0900_get_bits(intp, F0900_M_DIV);
290 ad_div = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6);
291
292 mclk = (div + 1) * ext_clk / ad_div;
293
294 dprintk("%s: Calculated Mclk = %d\n", __func__, mclk);
295
296 return mclk;
297 }
298
stv0900_set_mclk(struct stv0900_internal * intp,u32 mclk)299 static enum fe_stv0900_error stv0900_set_mclk(struct stv0900_internal *intp, u32 mclk)
300 {
301 u32 m_div, clk_sel;
302
303 dprintk("%s: Mclk set to %d, Quartz = %d\n", __func__, mclk,
304 intp->quartz);
305
306 if (intp == NULL)
307 return STV0900_INVALID_HANDLE;
308
309 if (intp->errs)
310 return STV0900_I2C_ERROR;
311
312 clk_sel = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6);
313 m_div = ((clk_sel * mclk) / intp->quartz) - 1;
314 stv0900_write_bits(intp, F0900_M_DIV, m_div);
315 intp->mclk = stv0900_get_mclk_freq(intp,
316 intp->quartz);
317
318 /*Set the DiseqC frequency to 22KHz */
319 /*
320 Formula:
321 DiseqC_TX_Freq= MasterClock/(32*F22TX_Reg)
322 DiseqC_RX_Freq= MasterClock/(32*F22RX_Reg)
323 */
324 m_div = intp->mclk / 704000;
325 stv0900_write_reg(intp, R0900_P1_F22TX, m_div);
326 stv0900_write_reg(intp, R0900_P1_F22RX, m_div);
327
328 stv0900_write_reg(intp, R0900_P2_F22TX, m_div);
329 stv0900_write_reg(intp, R0900_P2_F22RX, m_div);
330
331 if ((intp->errs))
332 return STV0900_I2C_ERROR;
333
334 return STV0900_NO_ERROR;
335 }
336
stv0900_get_err_count(struct stv0900_internal * intp,int cntr,enum fe_stv0900_demod_num demod)337 static u32 stv0900_get_err_count(struct stv0900_internal *intp, int cntr,
338 enum fe_stv0900_demod_num demod)
339 {
340 u32 lsb, msb, hsb, err_val;
341
342 switch (cntr) {
343 case 0:
344 default:
345 hsb = stv0900_get_bits(intp, ERR_CNT12);
346 msb = stv0900_get_bits(intp, ERR_CNT11);
347 lsb = stv0900_get_bits(intp, ERR_CNT10);
348 break;
349 case 1:
350 hsb = stv0900_get_bits(intp, ERR_CNT22);
351 msb = stv0900_get_bits(intp, ERR_CNT21);
352 lsb = stv0900_get_bits(intp, ERR_CNT20);
353 break;
354 }
355
356 err_val = (hsb << 16) + (msb << 8) + (lsb);
357
358 return err_val;
359 }
360
stv0900_i2c_gate_ctrl(struct dvb_frontend * fe,int enable)361 static int stv0900_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
362 {
363 struct stv0900_state *state = fe->demodulator_priv;
364 struct stv0900_internal *intp = state->internal;
365 enum fe_stv0900_demod_num demod = state->demod;
366
367 stv0900_write_bits(intp, I2CT_ON, enable);
368
369 return 0;
370 }
371
stv0900_set_ts_parallel_serial(struct stv0900_internal * intp,enum fe_stv0900_clock_type path1_ts,enum fe_stv0900_clock_type path2_ts)372 static void stv0900_set_ts_parallel_serial(struct stv0900_internal *intp,
373 enum fe_stv0900_clock_type path1_ts,
374 enum fe_stv0900_clock_type path2_ts)
375 {
376
377 dprintk("%s\n", __func__);
378
379 if (intp->chip_id >= 0x20) {
380 switch (path1_ts) {
381 case STV0900_PARALLEL_PUNCT_CLOCK:
382 case STV0900_DVBCI_CLOCK:
383 switch (path2_ts) {
384 case STV0900_SERIAL_PUNCT_CLOCK:
385 case STV0900_SERIAL_CONT_CLOCK:
386 default:
387 stv0900_write_reg(intp, R0900_TSGENERAL,
388 0x00);
389 break;
390 case STV0900_PARALLEL_PUNCT_CLOCK:
391 case STV0900_DVBCI_CLOCK:
392 stv0900_write_reg(intp, R0900_TSGENERAL,
393 0x06);
394 stv0900_write_bits(intp,
395 F0900_P1_TSFIFO_MANSPEED, 3);
396 stv0900_write_bits(intp,
397 F0900_P2_TSFIFO_MANSPEED, 0);
398 stv0900_write_reg(intp,
399 R0900_P1_TSSPEED, 0x14);
400 stv0900_write_reg(intp,
401 R0900_P2_TSSPEED, 0x28);
402 break;
403 }
404 break;
405 case STV0900_SERIAL_PUNCT_CLOCK:
406 case STV0900_SERIAL_CONT_CLOCK:
407 default:
408 switch (path2_ts) {
409 case STV0900_SERIAL_PUNCT_CLOCK:
410 case STV0900_SERIAL_CONT_CLOCK:
411 default:
412 stv0900_write_reg(intp,
413 R0900_TSGENERAL, 0x0C);
414 break;
415 case STV0900_PARALLEL_PUNCT_CLOCK:
416 case STV0900_DVBCI_CLOCK:
417 stv0900_write_reg(intp,
418 R0900_TSGENERAL, 0x0A);
419 dprintk("%s: 0x0a\n", __func__);
420 break;
421 }
422 break;
423 }
424 } else {
425 switch (path1_ts) {
426 case STV0900_PARALLEL_PUNCT_CLOCK:
427 case STV0900_DVBCI_CLOCK:
428 switch (path2_ts) {
429 case STV0900_SERIAL_PUNCT_CLOCK:
430 case STV0900_SERIAL_CONT_CLOCK:
431 default:
432 stv0900_write_reg(intp, R0900_TSGENERAL1X,
433 0x10);
434 break;
435 case STV0900_PARALLEL_PUNCT_CLOCK:
436 case STV0900_DVBCI_CLOCK:
437 stv0900_write_reg(intp, R0900_TSGENERAL1X,
438 0x16);
439 stv0900_write_bits(intp,
440 F0900_P1_TSFIFO_MANSPEED, 3);
441 stv0900_write_bits(intp,
442 F0900_P2_TSFIFO_MANSPEED, 0);
443 stv0900_write_reg(intp, R0900_P1_TSSPEED,
444 0x14);
445 stv0900_write_reg(intp, R0900_P2_TSSPEED,
446 0x28);
447 break;
448 }
449
450 break;
451 case STV0900_SERIAL_PUNCT_CLOCK:
452 case STV0900_SERIAL_CONT_CLOCK:
453 default:
454 switch (path2_ts) {
455 case STV0900_SERIAL_PUNCT_CLOCK:
456 case STV0900_SERIAL_CONT_CLOCK:
457 default:
458 stv0900_write_reg(intp, R0900_TSGENERAL1X,
459 0x14);
460 break;
461 case STV0900_PARALLEL_PUNCT_CLOCK:
462 case STV0900_DVBCI_CLOCK:
463 stv0900_write_reg(intp, R0900_TSGENERAL1X,
464 0x12);
465 dprintk("%s: 0x12\n", __func__);
466 break;
467 }
468
469 break;
470 }
471 }
472
473 switch (path1_ts) {
474 case STV0900_PARALLEL_PUNCT_CLOCK:
475 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x00);
476 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x00);
477 break;
478 case STV0900_DVBCI_CLOCK:
479 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x00);
480 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x01);
481 break;
482 case STV0900_SERIAL_PUNCT_CLOCK:
483 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x01);
484 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x00);
485 break;
486 case STV0900_SERIAL_CONT_CLOCK:
487 stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x01);
488 stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x01);
489 break;
490 default:
491 break;
492 }
493
494 switch (path2_ts) {
495 case STV0900_PARALLEL_PUNCT_CLOCK:
496 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x00);
497 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x00);
498 break;
499 case STV0900_DVBCI_CLOCK:
500 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x00);
501 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x01);
502 break;
503 case STV0900_SERIAL_PUNCT_CLOCK:
504 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x01);
505 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x00);
506 break;
507 case STV0900_SERIAL_CONT_CLOCK:
508 stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x01);
509 stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x01);
510 break;
511 default:
512 break;
513 }
514
515 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 1);
516 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 0);
517 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 1);
518 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 0);
519 }
520
stv0900_set_tuner(struct dvb_frontend * fe,u32 frequency,u32 bandwidth)521 void stv0900_set_tuner(struct dvb_frontend *fe, u32 frequency,
522 u32 bandwidth)
523 {
524 struct dvb_frontend_ops *frontend_ops = NULL;
525 struct dvb_tuner_ops *tuner_ops = NULL;
526
527 if (&fe->ops)
528 frontend_ops = &fe->ops;
529
530 if (&frontend_ops->tuner_ops)
531 tuner_ops = &frontend_ops->tuner_ops;
532
533 if (tuner_ops->set_frequency) {
534 if ((tuner_ops->set_frequency(fe, frequency)) < 0)
535 dprintk("%s: Invalid parameter\n", __func__);
536 else
537 dprintk("%s: Frequency=%d\n", __func__, frequency);
538
539 }
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
stv0900_set_bandwidth(struct dvb_frontend * fe,u32 bandwidth)550 void stv0900_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
551 {
552 struct dvb_frontend_ops *frontend_ops = NULL;
553 struct dvb_tuner_ops *tuner_ops = NULL;
554
555 if (&fe->ops)
556 frontend_ops = &fe->ops;
557
558 if (&frontend_ops->tuner_ops)
559 tuner_ops = &frontend_ops->tuner_ops;
560
561 if (tuner_ops->set_bandwidth) {
562 if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0)
563 dprintk("%s: Invalid parameter\n", __func__);
564 else
565 dprintk("%s: Bandwidth=%d\n", __func__, bandwidth);
566
567 }
568 }
569
stv0900_get_freq_auto(struct stv0900_internal * intp,int demod)570 u32 stv0900_get_freq_auto(struct stv0900_internal *intp, int demod)
571 {
572 u32 freq, round;
573 /* Formulat :
574 Tuner_Frequency(MHz) = Regs / 64
575 Tuner_granularity(MHz) = Regs / 2048
576 real_Tuner_Frequency = Tuner_Frequency(MHz) - Tuner_granularity(MHz)
577 */
578 freq = (stv0900_get_bits(intp, TUN_RFFREQ2) << 10) +
579 (stv0900_get_bits(intp, TUN_RFFREQ1) << 2) +
580 stv0900_get_bits(intp, TUN_RFFREQ0);
581
582 freq = (freq * 1000) / 64;
583
584 round = (stv0900_get_bits(intp, TUN_RFRESTE1) >> 2) +
585 stv0900_get_bits(intp, TUN_RFRESTE0);
586
587 round = (round * 1000) / 2048;
588
589 return freq + round;
590 }
591
stv0900_set_tuner_auto(struct stv0900_internal * intp,u32 Frequency,u32 Bandwidth,int demod)592 void stv0900_set_tuner_auto(struct stv0900_internal *intp, u32 Frequency,
593 u32 Bandwidth, int demod)
594 {
595 u32 tunerFrequency;
596 /* Formulat:
597 Tuner_frequency_reg= Frequency(MHz)*64
598 */
599 tunerFrequency = (Frequency * 64) / 1000;
600
601 stv0900_write_bits(intp, TUN_RFFREQ2, (tunerFrequency >> 10));
602 stv0900_write_bits(intp, TUN_RFFREQ1, (tunerFrequency >> 2) & 0xff);
603 stv0900_write_bits(intp, TUN_RFFREQ0, (tunerFrequency & 0x03));
604 /* Low Pass Filter = BW /2 (MHz)*/
605 stv0900_write_bits(intp, TUN_BW, Bandwidth / 2000000);
606 /* Tuner Write trig */
607 stv0900_write_reg(intp, TNRLD, 1);
608 }
609
stv0900_get_rf_level(struct stv0900_internal * intp,const struct stv0900_table * lookup,enum fe_stv0900_demod_num demod)610 static s32 stv0900_get_rf_level(struct stv0900_internal *intp,
611 const struct stv0900_table *lookup,
612 enum fe_stv0900_demod_num demod)
613 {
614 s32 agc_gain = 0,
615 imin,
616 imax,
617 i,
618 rf_lvl = 0;
619
620 dprintk("%s\n", __func__);
621
622 if ((lookup == NULL) || (lookup->size <= 0))
623 return 0;
624
625 agc_gain = MAKEWORD(stv0900_get_bits(intp, AGCIQ_VALUE1),
626 stv0900_get_bits(intp, AGCIQ_VALUE0));
627
628 imin = 0;
629 imax = lookup->size - 1;
630 if (INRANGE(lookup->table[imin].regval, agc_gain,
631 lookup->table[imax].regval)) {
632 while ((imax - imin) > 1) {
633 i = (imax + imin) >> 1;
634
635 if (INRANGE(lookup->table[imin].regval,
636 agc_gain,
637 lookup->table[i].regval))
638 imax = i;
639 else
640 imin = i;
641 }
642
643 rf_lvl = (s32)agc_gain - lookup->table[imin].regval;
644 rf_lvl *= (lookup->table[imax].realval -
645 lookup->table[imin].realval);
646 rf_lvl /= (lookup->table[imax].regval -
647 lookup->table[imin].regval);
648 rf_lvl += lookup->table[imin].realval;
649 } else if (agc_gain > lookup->table[0].regval)
650 rf_lvl = 5;
651 else if (agc_gain < lookup->table[lookup->size-1].regval)
652 rf_lvl = -100;
653
654 dprintk("%s: RFLevel = %d\n", __func__, rf_lvl);
655
656 return rf_lvl;
657 }
658
stv0900_read_signal_strength(struct dvb_frontend * fe,u16 * strength)659 static int stv0900_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
660 {
661 struct stv0900_state *state = fe->demodulator_priv;
662 struct stv0900_internal *internal = state->internal;
663 s32 rflevel = stv0900_get_rf_level(internal, &stv0900_rf,
664 state->demod);
665
666 rflevel = (rflevel + 100) * (65535 / 70);
667 if (rflevel < 0)
668 rflevel = 0;
669
670 if (rflevel > 65535)
671 rflevel = 65535;
672
673 *strength = rflevel;
674
675 return 0;
676 }
677
stv0900_carr_get_quality(struct dvb_frontend * fe,const struct stv0900_table * lookup)678 static s32 stv0900_carr_get_quality(struct dvb_frontend *fe,
679 const struct stv0900_table *lookup)
680 {
681 struct stv0900_state *state = fe->demodulator_priv;
682 struct stv0900_internal *intp = state->internal;
683 enum fe_stv0900_demod_num demod = state->demod;
684
685 s32 c_n = -100,
686 regval,
687 imin,
688 imax,
689 i,
690 noise_field1,
691 noise_field0;
692
693 dprintk("%s\n", __func__);
694
695 if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
696 noise_field1 = NOSPLHT_NORMED1;
697 noise_field0 = NOSPLHT_NORMED0;
698 } else {
699 noise_field1 = NOSDATAT_NORMED1;
700 noise_field0 = NOSDATAT_NORMED0;
701 }
702
703 if (stv0900_get_bits(intp, LOCK_DEFINITIF)) {
704 if ((lookup != NULL) && lookup->size) {
705 regval = 0;
706 msleep(5);
707 for (i = 0; i < 16; i++) {
708 regval += MAKEWORD(stv0900_get_bits(intp,
709 noise_field1),
710 stv0900_get_bits(intp,
711 noise_field0));
712 msleep(1);
713 }
714
715 regval /= 16;
716 imin = 0;
717 imax = lookup->size - 1;
718 if (INRANGE(lookup->table[imin].regval,
719 regval,
720 lookup->table[imax].regval)) {
721 while ((imax - imin) > 1) {
722 i = (imax + imin) >> 1;
723 if (INRANGE(lookup->table[imin].regval,
724 regval,
725 lookup->table[i].regval))
726 imax = i;
727 else
728 imin = i;
729 }
730
731 c_n = ((regval - lookup->table[imin].regval)
732 * (lookup->table[imax].realval
733 - lookup->table[imin].realval)
734 / (lookup->table[imax].regval
735 - lookup->table[imin].regval))
736 + lookup->table[imin].realval;
737 } else if (regval < lookup->table[imin].regval)
738 c_n = 1000;
739 }
740 }
741
742 return c_n;
743 }
744
stv0900_read_ucblocks(struct dvb_frontend * fe,u32 * ucblocks)745 static int stv0900_read_ucblocks(struct dvb_frontend *fe, u32 * ucblocks)
746 {
747 struct stv0900_state *state = fe->demodulator_priv;
748 struct stv0900_internal *intp = state->internal;
749 enum fe_stv0900_demod_num demod = state->demod;
750 u8 err_val1, err_val0;
751 u32 header_err_val = 0;
752
753 *ucblocks = 0x0;
754 if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
755 /* DVB-S2 delineator errors count */
756
757 /* retreiving number for errnous headers */
758 err_val1 = stv0900_read_reg(intp, BBFCRCKO1);
759 err_val0 = stv0900_read_reg(intp, BBFCRCKO0);
760 header_err_val = (err_val1 << 8) | err_val0;
761
762 /* retreiving number for errnous packets */
763 err_val1 = stv0900_read_reg(intp, UPCRCKO1);
764 err_val0 = stv0900_read_reg(intp, UPCRCKO0);
765 *ucblocks = (err_val1 << 8) | err_val0;
766 *ucblocks += header_err_val;
767 }
768
769 return 0;
770 }
771
stv0900_read_snr(struct dvb_frontend * fe,u16 * snr)772 static int stv0900_read_snr(struct dvb_frontend *fe, u16 *snr)
773 {
774 s32 snrlcl = stv0900_carr_get_quality(fe,
775 (const struct stv0900_table *)&stv0900_s2_cn);
776 snrlcl = (snrlcl + 30) * 384;
777 if (snrlcl < 0)
778 snrlcl = 0;
779
780 if (snrlcl > 65535)
781 snrlcl = 65535;
782
783 *snr = snrlcl;
784
785 return 0;
786 }
787
stv0900_get_ber(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)788 static u32 stv0900_get_ber(struct stv0900_internal *intp,
789 enum fe_stv0900_demod_num demod)
790 {
791 u32 ber = 10000000, i;
792 s32 demod_state;
793
794 demod_state = stv0900_get_bits(intp, HEADER_MODE);
795
796 switch (demod_state) {
797 case STV0900_SEARCH:
798 case STV0900_PLH_DETECTED:
799 default:
800 ber = 10000000;
801 break;
802 case STV0900_DVBS_FOUND:
803 ber = 0;
804 for (i = 0; i < 5; i++) {
805 msleep(5);
806 ber += stv0900_get_err_count(intp, 0, demod);
807 }
808
809 ber /= 5;
810 if (stv0900_get_bits(intp, PRFVIT)) {
811 ber *= 9766;
812 ber = ber >> 13;
813 }
814
815 break;
816 case STV0900_DVBS2_FOUND:
817 ber = 0;
818 for (i = 0; i < 5; i++) {
819 msleep(5);
820 ber += stv0900_get_err_count(intp, 0, demod);
821 }
822
823 ber /= 5;
824 if (stv0900_get_bits(intp, PKTDELIN_LOCK)) {
825 ber *= 9766;
826 ber = ber >> 13;
827 }
828
829 break;
830 }
831
832 return ber;
833 }
834
stv0900_read_ber(struct dvb_frontend * fe,u32 * ber)835 static int stv0900_read_ber(struct dvb_frontend *fe, u32 *ber)
836 {
837 struct stv0900_state *state = fe->demodulator_priv;
838 struct stv0900_internal *internal = state->internal;
839
840 *ber = stv0900_get_ber(internal, state->demod);
841
842 return 0;
843 }
844
stv0900_get_demod_lock(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod,s32 time_out)845 int stv0900_get_demod_lock(struct stv0900_internal *intp,
846 enum fe_stv0900_demod_num demod, s32 time_out)
847 {
848 s32 timer = 0,
849 lock = 0;
850
851 enum fe_stv0900_search_state dmd_state;
852
853 while ((timer < time_out) && (lock == 0)) {
854 dmd_state = stv0900_get_bits(intp, HEADER_MODE);
855 dprintk("Demod State = %d\n", dmd_state);
856 switch (dmd_state) {
857 case STV0900_SEARCH:
858 case STV0900_PLH_DETECTED:
859 default:
860 lock = 0;
861 break;
862 case STV0900_DVBS2_FOUND:
863 case STV0900_DVBS_FOUND:
864 lock = stv0900_get_bits(intp, LOCK_DEFINITIF);
865 break;
866 }
867
868 if (lock == 0)
869 msleep(10);
870
871 timer += 10;
872 }
873
874 if (lock)
875 dprintk("DEMOD LOCK OK\n");
876 else
877 dprintk("DEMOD LOCK FAIL\n");
878
879 return lock;
880 }
881
stv0900_stop_all_s2_modcod(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)882 void stv0900_stop_all_s2_modcod(struct stv0900_internal *intp,
883 enum fe_stv0900_demod_num demod)
884 {
885 s32 regflist,
886 i;
887
888 dprintk("%s\n", __func__);
889
890 regflist = MODCODLST0;
891
892 for (i = 0; i < 16; i++)
893 stv0900_write_reg(intp, regflist + i, 0xff);
894 }
895
stv0900_activate_s2_modcod(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)896 void stv0900_activate_s2_modcod(struct stv0900_internal *intp,
897 enum fe_stv0900_demod_num demod)
898 {
899 u32 matype,
900 mod_code,
901 fmod,
902 reg_index,
903 field_index;
904
905 dprintk("%s\n", __func__);
906
907 if (intp->chip_id <= 0x11) {
908 msleep(5);
909
910 mod_code = stv0900_read_reg(intp, PLHMODCOD);
911 matype = mod_code & 0x3;
912 mod_code = (mod_code & 0x7f) >> 2;
913
914 reg_index = MODCODLSTF - mod_code / 2;
915 field_index = mod_code % 2;
916
917 switch (matype) {
918 case 0:
919 default:
920 fmod = 14;
921 break;
922 case 1:
923 fmod = 13;
924 break;
925 case 2:
926 fmod = 11;
927 break;
928 case 3:
929 fmod = 7;
930 break;
931 }
932
933 if ((INRANGE(STV0900_QPSK_12, mod_code, STV0900_8PSK_910))
934 && (matype <= 1)) {
935 if (field_index == 0)
936 stv0900_write_reg(intp, reg_index,
937 0xf0 | fmod);
938 else
939 stv0900_write_reg(intp, reg_index,
940 (fmod << 4) | 0xf);
941 }
942
943 } else if (intp->chip_id >= 0x12) {
944 for (reg_index = 0; reg_index < 7; reg_index++)
945 stv0900_write_reg(intp, MODCODLST0 + reg_index, 0xff);
946
947 stv0900_write_reg(intp, MODCODLSTE, 0xff);
948 stv0900_write_reg(intp, MODCODLSTF, 0xcf);
949 for (reg_index = 0; reg_index < 8; reg_index++)
950 stv0900_write_reg(intp, MODCODLST7 + reg_index, 0xcc);
951
952
953 }
954 }
955
stv0900_activate_s2_modcod_single(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)956 void stv0900_activate_s2_modcod_single(struct stv0900_internal *intp,
957 enum fe_stv0900_demod_num demod)
958 {
959 u32 reg_index;
960
961 dprintk("%s\n", __func__);
962
963 stv0900_write_reg(intp, MODCODLST0, 0xff);
964 stv0900_write_reg(intp, MODCODLST1, 0xf0);
965 stv0900_write_reg(intp, MODCODLSTF, 0x0f);
966 for (reg_index = 0; reg_index < 13; reg_index++)
967 stv0900_write_reg(intp, MODCODLST2 + reg_index, 0);
968
969 }
970
stv0900_frontend_algo(struct dvb_frontend * fe)971 static enum dvbfe_algo stv0900_frontend_algo(struct dvb_frontend *fe)
972 {
973 return DVBFE_ALGO_CUSTOM;
974 }
975
stb0900_set_property(struct dvb_frontend * fe,struct dtv_property * tvp)976 static int stb0900_set_property(struct dvb_frontend *fe,
977 struct dtv_property *tvp)
978 {
979 dprintk("%s(..)\n", __func__);
980
981 return 0;
982 }
983
stb0900_get_property(struct dvb_frontend * fe,struct dtv_property * tvp)984 static int stb0900_get_property(struct dvb_frontend *fe,
985 struct dtv_property *tvp)
986 {
987 dprintk("%s(..)\n", __func__);
988
989 return 0;
990 }
991
stv0900_start_search(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)992 void stv0900_start_search(struct stv0900_internal *intp,
993 enum fe_stv0900_demod_num demod)
994 {
995 u32 freq;
996 s16 freq_s16 ;
997
998 stv0900_write_bits(intp, DEMOD_MODE, 0x1f);
999 if (intp->chip_id == 0x10)
1000 stv0900_write_reg(intp, CORRELEXP, 0xaa);
1001
1002 if (intp->chip_id < 0x20)
1003 stv0900_write_reg(intp, CARHDR, 0x55);
1004
1005 if (intp->chip_id <= 0x20) {
1006 if (intp->symbol_rate[0] <= 5000000) {
1007 stv0900_write_reg(intp, CARCFG, 0x44);
1008 stv0900_write_reg(intp, CFRUP1, 0x0f);
1009 stv0900_write_reg(intp, CFRUP0, 0xff);
1010 stv0900_write_reg(intp, CFRLOW1, 0xf0);
1011 stv0900_write_reg(intp, CFRLOW0, 0x00);
1012 stv0900_write_reg(intp, RTCS2, 0x68);
1013 } else {
1014 stv0900_write_reg(intp, CARCFG, 0xc4);
1015 stv0900_write_reg(intp, RTCS2, 0x44);
1016 }
1017
1018 } else { /*cut 3.0 above*/
1019 if (intp->symbol_rate[demod] <= 5000000)
1020 stv0900_write_reg(intp, RTCS2, 0x68);
1021 else
1022 stv0900_write_reg(intp, RTCS2, 0x44);
1023
1024 stv0900_write_reg(intp, CARCFG, 0x46);
1025 if (intp->srch_algo[demod] == STV0900_WARM_START) {
1026 freq = 1000 << 16;
1027 freq /= (intp->mclk / 1000);
1028 freq_s16 = (s16)freq;
1029 } else {
1030 freq = (intp->srch_range[demod] / 2000);
1031 if (intp->symbol_rate[demod] <= 5000000)
1032 freq += 80;
1033 else
1034 freq += 600;
1035
1036 freq = freq << 16;
1037 freq /= (intp->mclk / 1000);
1038 freq_s16 = (s16)freq;
1039 }
1040
1041 stv0900_write_bits(intp, CFR_UP1, MSB(freq_s16));
1042 stv0900_write_bits(intp, CFR_UP0, LSB(freq_s16));
1043 freq_s16 *= (-1);
1044 stv0900_write_bits(intp, CFR_LOW1, MSB(freq_s16));
1045 stv0900_write_bits(intp, CFR_LOW0, LSB(freq_s16));
1046 }
1047
1048 stv0900_write_reg(intp, CFRINIT1, 0);
1049 stv0900_write_reg(intp, CFRINIT0, 0);
1050
1051 if (intp->chip_id >= 0x20) {
1052 stv0900_write_reg(intp, EQUALCFG, 0x41);
1053 stv0900_write_reg(intp, FFECFG, 0x41);
1054
1055 if ((intp->srch_standard[demod] == STV0900_SEARCH_DVBS1) ||
1056 (intp->srch_standard[demod] == STV0900_SEARCH_DSS) ||
1057 (intp->srch_standard[demod] == STV0900_AUTO_SEARCH)) {
1058 stv0900_write_reg(intp, VITSCALE,
1059 0x82);
1060 stv0900_write_reg(intp, VAVSRVIT, 0x0);
1061 }
1062 }
1063
1064 stv0900_write_reg(intp, SFRSTEP, 0x00);
1065 stv0900_write_reg(intp, TMGTHRISE, 0xe0);
1066 stv0900_write_reg(intp, TMGTHFALL, 0xc0);
1067 stv0900_write_bits(intp, SCAN_ENABLE, 0);
1068 stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
1069 stv0900_write_bits(intp, S1S2_SEQUENTIAL, 0);
1070 stv0900_write_reg(intp, RTC, 0x88);
1071 if (intp->chip_id >= 0x20) {
1072 if (intp->symbol_rate[demod] < 2000000) {
1073 if (intp->chip_id <= 0x20)
1074 stv0900_write_reg(intp, CARFREQ, 0x39);
1075 else /*cut 3.0*/
1076 stv0900_write_reg(intp, CARFREQ, 0x89);
1077
1078 stv0900_write_reg(intp, CARHDR, 0x40);
1079 } else if (intp->symbol_rate[demod] < 10000000) {
1080 stv0900_write_reg(intp, CARFREQ, 0x4c);
1081 stv0900_write_reg(intp, CARHDR, 0x20);
1082 } else {
1083 stv0900_write_reg(intp, CARFREQ, 0x4b);
1084 stv0900_write_reg(intp, CARHDR, 0x20);
1085 }
1086
1087 } else {
1088 if (intp->symbol_rate[demod] < 10000000)
1089 stv0900_write_reg(intp, CARFREQ, 0xef);
1090 else
1091 stv0900_write_reg(intp, CARFREQ, 0xed);
1092 }
1093
1094 switch (intp->srch_algo[demod]) {
1095 case STV0900_WARM_START:
1096 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1097 stv0900_write_reg(intp, DMDISTATE, 0x18);
1098 break;
1099 case STV0900_COLD_START:
1100 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1101 stv0900_write_reg(intp, DMDISTATE, 0x15);
1102 break;
1103 default:
1104 break;
1105 }
1106 }
1107
stv0900_get_optim_carr_loop(s32 srate,enum fe_stv0900_modcode modcode,s32 pilot,u8 chip_id)1108 u8 stv0900_get_optim_carr_loop(s32 srate, enum fe_stv0900_modcode modcode,
1109 s32 pilot, u8 chip_id)
1110 {
1111 u8 aclc_value = 0x29;
1112 s32 i;
1113 const struct stv0900_car_loop_optim *cls2, *cllqs2, *cllas2;
1114
1115 dprintk("%s\n", __func__);
1116
1117 if (chip_id <= 0x12) {
1118 cls2 = FE_STV0900_S2CarLoop;
1119 cllqs2 = FE_STV0900_S2LowQPCarLoopCut30;
1120 cllas2 = FE_STV0900_S2APSKCarLoopCut30;
1121 } else if (chip_id == 0x20) {
1122 cls2 = FE_STV0900_S2CarLoopCut20;
1123 cllqs2 = FE_STV0900_S2LowQPCarLoopCut20;
1124 cllas2 = FE_STV0900_S2APSKCarLoopCut20;
1125 } else {
1126 cls2 = FE_STV0900_S2CarLoopCut30;
1127 cllqs2 = FE_STV0900_S2LowQPCarLoopCut30;
1128 cllas2 = FE_STV0900_S2APSKCarLoopCut30;
1129 }
1130
1131 if (modcode < STV0900_QPSK_12) {
1132 i = 0;
1133 while ((i < 3) && (modcode != cllqs2[i].modcode))
1134 i++;
1135
1136 if (i >= 3)
1137 i = 2;
1138 } else {
1139 i = 0;
1140 while ((i < 14) && (modcode != cls2[i].modcode))
1141 i++;
1142
1143 if (i >= 14) {
1144 i = 0;
1145 while ((i < 11) && (modcode != cllas2[i].modcode))
1146 i++;
1147
1148 if (i >= 11)
1149 i = 10;
1150 }
1151 }
1152
1153 if (modcode <= STV0900_QPSK_25) {
1154 if (pilot) {
1155 if (srate <= 3000000)
1156 aclc_value = cllqs2[i].car_loop_pilots_on_2;
1157 else if (srate <= 7000000)
1158 aclc_value = cllqs2[i].car_loop_pilots_on_5;
1159 else if (srate <= 15000000)
1160 aclc_value = cllqs2[i].car_loop_pilots_on_10;
1161 else if (srate <= 25000000)
1162 aclc_value = cllqs2[i].car_loop_pilots_on_20;
1163 else
1164 aclc_value = cllqs2[i].car_loop_pilots_on_30;
1165 } else {
1166 if (srate <= 3000000)
1167 aclc_value = cllqs2[i].car_loop_pilots_off_2;
1168 else if (srate <= 7000000)
1169 aclc_value = cllqs2[i].car_loop_pilots_off_5;
1170 else if (srate <= 15000000)
1171 aclc_value = cllqs2[i].car_loop_pilots_off_10;
1172 else if (srate <= 25000000)
1173 aclc_value = cllqs2[i].car_loop_pilots_off_20;
1174 else
1175 aclc_value = cllqs2[i].car_loop_pilots_off_30;
1176 }
1177
1178 } else if (modcode <= STV0900_8PSK_910) {
1179 if (pilot) {
1180 if (srate <= 3000000)
1181 aclc_value = cls2[i].car_loop_pilots_on_2;
1182 else if (srate <= 7000000)
1183 aclc_value = cls2[i].car_loop_pilots_on_5;
1184 else if (srate <= 15000000)
1185 aclc_value = cls2[i].car_loop_pilots_on_10;
1186 else if (srate <= 25000000)
1187 aclc_value = cls2[i].car_loop_pilots_on_20;
1188 else
1189 aclc_value = cls2[i].car_loop_pilots_on_30;
1190 } else {
1191 if (srate <= 3000000)
1192 aclc_value = cls2[i].car_loop_pilots_off_2;
1193 else if (srate <= 7000000)
1194 aclc_value = cls2[i].car_loop_pilots_off_5;
1195 else if (srate <= 15000000)
1196 aclc_value = cls2[i].car_loop_pilots_off_10;
1197 else if (srate <= 25000000)
1198 aclc_value = cls2[i].car_loop_pilots_off_20;
1199 else
1200 aclc_value = cls2[i].car_loop_pilots_off_30;
1201 }
1202
1203 } else {
1204 if (srate <= 3000000)
1205 aclc_value = cllas2[i].car_loop_pilots_on_2;
1206 else if (srate <= 7000000)
1207 aclc_value = cllas2[i].car_loop_pilots_on_5;
1208 else if (srate <= 15000000)
1209 aclc_value = cllas2[i].car_loop_pilots_on_10;
1210 else if (srate <= 25000000)
1211 aclc_value = cllas2[i].car_loop_pilots_on_20;
1212 else
1213 aclc_value = cllas2[i].car_loop_pilots_on_30;
1214 }
1215
1216 return aclc_value;
1217 }
1218
stv0900_get_optim_short_carr_loop(s32 srate,enum fe_stv0900_modulation modulation,u8 chip_id)1219 u8 stv0900_get_optim_short_carr_loop(s32 srate,
1220 enum fe_stv0900_modulation modulation,
1221 u8 chip_id)
1222 {
1223 const struct stv0900_short_frames_car_loop_optim *s2scl;
1224 const struct stv0900_short_frames_car_loop_optim_vs_mod *s2sclc30;
1225 s32 mod_index = 0;
1226 u8 aclc_value = 0x0b;
1227
1228 dprintk("%s\n", __func__);
1229
1230 s2scl = FE_STV0900_S2ShortCarLoop;
1231 s2sclc30 = FE_STV0900_S2ShortCarLoopCut30;
1232
1233 switch (modulation) {
1234 case STV0900_QPSK:
1235 default:
1236 mod_index = 0;
1237 break;
1238 case STV0900_8PSK:
1239 mod_index = 1;
1240 break;
1241 case STV0900_16APSK:
1242 mod_index = 2;
1243 break;
1244 case STV0900_32APSK:
1245 mod_index = 3;
1246 break;
1247 }
1248
1249 if (chip_id >= 0x30) {
1250 if (srate <= 3000000)
1251 aclc_value = s2sclc30[mod_index].car_loop_2;
1252 else if (srate <= 7000000)
1253 aclc_value = s2sclc30[mod_index].car_loop_5;
1254 else if (srate <= 15000000)
1255 aclc_value = s2sclc30[mod_index].car_loop_10;
1256 else if (srate <= 25000000)
1257 aclc_value = s2sclc30[mod_index].car_loop_20;
1258 else
1259 aclc_value = s2sclc30[mod_index].car_loop_30;
1260
1261 } else if (chip_id >= 0x20) {
1262 if (srate <= 3000000)
1263 aclc_value = s2scl[mod_index].car_loop_cut20_2;
1264 else if (srate <= 7000000)
1265 aclc_value = s2scl[mod_index].car_loop_cut20_5;
1266 else if (srate <= 15000000)
1267 aclc_value = s2scl[mod_index].car_loop_cut20_10;
1268 else if (srate <= 25000000)
1269 aclc_value = s2scl[mod_index].car_loop_cut20_20;
1270 else
1271 aclc_value = s2scl[mod_index].car_loop_cut20_30;
1272
1273 } else {
1274 if (srate <= 3000000)
1275 aclc_value = s2scl[mod_index].car_loop_cut12_2;
1276 else if (srate <= 7000000)
1277 aclc_value = s2scl[mod_index].car_loop_cut12_5;
1278 else if (srate <= 15000000)
1279 aclc_value = s2scl[mod_index].car_loop_cut12_10;
1280 else if (srate <= 25000000)
1281 aclc_value = s2scl[mod_index].car_loop_cut12_20;
1282 else
1283 aclc_value = s2scl[mod_index].car_loop_cut12_30;
1284
1285 }
1286
1287 return aclc_value;
1288 }
1289
1290 static
stv0900_st_dvbs2_single(struct stv0900_internal * intp,enum fe_stv0900_demod_mode LDPC_Mode,enum fe_stv0900_demod_num demod)1291 enum fe_stv0900_error stv0900_st_dvbs2_single(struct stv0900_internal *intp,
1292 enum fe_stv0900_demod_mode LDPC_Mode,
1293 enum fe_stv0900_demod_num demod)
1294 {
1295 enum fe_stv0900_error error = STV0900_NO_ERROR;
1296 s32 reg_ind;
1297
1298 dprintk("%s\n", __func__);
1299
1300 switch (LDPC_Mode) {
1301 case STV0900_DUAL:
1302 default:
1303 if ((intp->demod_mode != STV0900_DUAL)
1304 || (stv0900_get_bits(intp, F0900_DDEMOD) != 1)) {
1305 stv0900_write_reg(intp, R0900_GENCFG, 0x1d);
1306
1307 intp->demod_mode = STV0900_DUAL;
1308
1309 stv0900_write_bits(intp, F0900_FRESFEC, 1);
1310 stv0900_write_bits(intp, F0900_FRESFEC, 0);
1311
1312 for (reg_ind = 0; reg_ind < 7; reg_ind++)
1313 stv0900_write_reg(intp,
1314 R0900_P1_MODCODLST0 + reg_ind,
1315 0xff);
1316 for (reg_ind = 0; reg_ind < 8; reg_ind++)
1317 stv0900_write_reg(intp,
1318 R0900_P1_MODCODLST7 + reg_ind,
1319 0xcc);
1320
1321 stv0900_write_reg(intp, R0900_P1_MODCODLSTE, 0xff);
1322 stv0900_write_reg(intp, R0900_P1_MODCODLSTF, 0xcf);
1323
1324 for (reg_ind = 0; reg_ind < 7; reg_ind++)
1325 stv0900_write_reg(intp,
1326 R0900_P2_MODCODLST0 + reg_ind,
1327 0xff);
1328 for (reg_ind = 0; reg_ind < 8; reg_ind++)
1329 stv0900_write_reg(intp,
1330 R0900_P2_MODCODLST7 + reg_ind,
1331 0xcc);
1332
1333 stv0900_write_reg(intp, R0900_P2_MODCODLSTE, 0xff);
1334 stv0900_write_reg(intp, R0900_P2_MODCODLSTF, 0xcf);
1335 }
1336
1337 break;
1338 case STV0900_SINGLE:
1339 if (demod == STV0900_DEMOD_2) {
1340 stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_1);
1341 stv0900_activate_s2_modcod_single(intp,
1342 STV0900_DEMOD_2);
1343 stv0900_write_reg(intp, R0900_GENCFG, 0x06);
1344 } else {
1345 stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_2);
1346 stv0900_activate_s2_modcod_single(intp,
1347 STV0900_DEMOD_1);
1348 stv0900_write_reg(intp, R0900_GENCFG, 0x04);
1349 }
1350
1351 intp->demod_mode = STV0900_SINGLE;
1352
1353 stv0900_write_bits(intp, F0900_FRESFEC, 1);
1354 stv0900_write_bits(intp, F0900_FRESFEC, 0);
1355 stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 1);
1356 stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 0);
1357 stv0900_write_bits(intp, F0900_P2_ALGOSWRST, 1);
1358 stv0900_write_bits(intp, F0900_P2_ALGOSWRST, 0);
1359 break;
1360 }
1361
1362 return error;
1363 }
1364
stv0900_init_internal(struct dvb_frontend * fe,struct stv0900_init_params * p_init)1365 static enum fe_stv0900_error stv0900_init_internal(struct dvb_frontend *fe,
1366 struct stv0900_init_params *p_init)
1367 {
1368 struct stv0900_state *state = fe->demodulator_priv;
1369 enum fe_stv0900_error error = STV0900_NO_ERROR;
1370 enum fe_stv0900_error demodError = STV0900_NO_ERROR;
1371 struct stv0900_internal *intp = NULL;
1372 int selosci, i;
1373
1374 struct stv0900_inode *temp_int = find_inode(state->i2c_adap,
1375 state->config->demod_address);
1376
1377 dprintk("%s\n", __func__);
1378
1379 if ((temp_int != NULL) && (p_init->demod_mode == STV0900_DUAL)) {
1380 state->internal = temp_int->internal;
1381 (state->internal->dmds_used)++;
1382 dprintk("%s: Find Internal Structure!\n", __func__);
1383 return STV0900_NO_ERROR;
1384 } else {
1385 state->internal = kmalloc(sizeof(struct stv0900_internal),
1386 GFP_KERNEL);
1387 if (state->internal == NULL)
1388 return STV0900_INVALID_HANDLE;
1389 temp_int = append_internal(state->internal);
1390 if (temp_int == NULL) {
1391 kfree(state->internal);
1392 state->internal = NULL;
1393 return STV0900_INVALID_HANDLE;
1394 }
1395 state->internal->dmds_used = 1;
1396 state->internal->i2c_adap = state->i2c_adap;
1397 state->internal->i2c_addr = state->config->demod_address;
1398 state->internal->clkmode = state->config->clkmode;
1399 state->internal->errs = STV0900_NO_ERROR;
1400 dprintk("%s: Create New Internal Structure!\n", __func__);
1401 }
1402
1403 if (state->internal == NULL) {
1404 error = STV0900_INVALID_HANDLE;
1405 return error;
1406 }
1407
1408 demodError = stv0900_initialize(state->internal);
1409 if (demodError == STV0900_NO_ERROR) {
1410 error = STV0900_NO_ERROR;
1411 } else {
1412 if (demodError == STV0900_INVALID_HANDLE)
1413 error = STV0900_INVALID_HANDLE;
1414 else
1415 error = STV0900_I2C_ERROR;
1416
1417 return error;
1418 }
1419
1420 intp = state->internal;
1421
1422 intp->demod_mode = p_init->demod_mode;
1423 stv0900_st_dvbs2_single(intp, intp->demod_mode, STV0900_DEMOD_1);
1424 intp->chip_id = stv0900_read_reg(intp, R0900_MID);
1425 intp->rolloff = p_init->rolloff;
1426 intp->quartz = p_init->dmd_ref_clk;
1427
1428 stv0900_write_bits(intp, F0900_P1_ROLLOFF_CONTROL, p_init->rolloff);
1429 stv0900_write_bits(intp, F0900_P2_ROLLOFF_CONTROL, p_init->rolloff);
1430
1431 intp->ts_config = p_init->ts_config;
1432 if (intp->ts_config == NULL)
1433 stv0900_set_ts_parallel_serial(intp,
1434 p_init->path1_ts_clock,
1435 p_init->path2_ts_clock);
1436 else {
1437 for (i = 0; intp->ts_config[i].addr != 0xffff; i++)
1438 stv0900_write_reg(intp,
1439 intp->ts_config[i].addr,
1440 intp->ts_config[i].val);
1441
1442 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 1);
1443 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 0);
1444 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 1);
1445 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 0);
1446 }
1447
1448 intp->tuner_type[0] = p_init->tuner1_type;
1449 intp->tuner_type[1] = p_init->tuner2_type;
1450 /* tuner init */
1451 switch (p_init->tuner1_type) {
1452 case 3: /*FE_AUTO_STB6100:*/
1453 stv0900_write_reg(intp, R0900_P1_TNRCFG, 0x3c);
1454 stv0900_write_reg(intp, R0900_P1_TNRCFG2, 0x86);
1455 stv0900_write_reg(intp, R0900_P1_TNRCFG3, 0x18);
1456 stv0900_write_reg(intp, R0900_P1_TNRXTAL, 27); /* 27MHz */
1457 stv0900_write_reg(intp, R0900_P1_TNRSTEPS, 0x05);
1458 stv0900_write_reg(intp, R0900_P1_TNRGAIN, 0x17);
1459 stv0900_write_reg(intp, R0900_P1_TNRADJ, 0x1f);
1460 stv0900_write_reg(intp, R0900_P1_TNRCTL2, 0x0);
1461 stv0900_write_bits(intp, F0900_P1_TUN_TYPE, 3);
1462 break;
1463 /* case FE_SW_TUNER: */
1464 default:
1465 stv0900_write_bits(intp, F0900_P1_TUN_TYPE, 6);
1466 break;
1467 }
1468
1469 stv0900_write_bits(intp, F0900_P1_TUN_MADDRESS, p_init->tun1_maddress);
1470 switch (p_init->tuner1_adc) {
1471 case 1:
1472 stv0900_write_reg(intp, R0900_TSTTNR1, 0x26);
1473 break;
1474 default:
1475 break;
1476 }
1477
1478 stv0900_write_reg(intp, R0900_P1_TNRLD, 1); /* hw tuner */
1479
1480 /* tuner init */
1481 switch (p_init->tuner2_type) {
1482 case 3: /*FE_AUTO_STB6100:*/
1483 stv0900_write_reg(intp, R0900_P2_TNRCFG, 0x3c);
1484 stv0900_write_reg(intp, R0900_P2_TNRCFG2, 0x86);
1485 stv0900_write_reg(intp, R0900_P2_TNRCFG3, 0x18);
1486 stv0900_write_reg(intp, R0900_P2_TNRXTAL, 27); /* 27MHz */
1487 stv0900_write_reg(intp, R0900_P2_TNRSTEPS, 0x05);
1488 stv0900_write_reg(intp, R0900_P2_TNRGAIN, 0x17);
1489 stv0900_write_reg(intp, R0900_P2_TNRADJ, 0x1f);
1490 stv0900_write_reg(intp, R0900_P2_TNRCTL2, 0x0);
1491 stv0900_write_bits(intp, F0900_P2_TUN_TYPE, 3);
1492 break;
1493 /* case FE_SW_TUNER: */
1494 default:
1495 stv0900_write_bits(intp, F0900_P2_TUN_TYPE, 6);
1496 break;
1497 }
1498
1499 stv0900_write_bits(intp, F0900_P2_TUN_MADDRESS, p_init->tun2_maddress);
1500 switch (p_init->tuner2_adc) {
1501 case 1:
1502 stv0900_write_reg(intp, R0900_TSTTNR3, 0x26);
1503 break;
1504 default:
1505 break;
1506 }
1507
1508 stv0900_write_reg(intp, R0900_P2_TNRLD, 1); /* hw tuner */
1509
1510 stv0900_write_bits(intp, F0900_P1_TUN_IQSWAP, p_init->tun1_iq_inv);
1511 stv0900_write_bits(intp, F0900_P2_TUN_IQSWAP, p_init->tun2_iq_inv);
1512 stv0900_set_mclk(intp, 135000000);
1513 msleep(3);
1514
1515 switch (intp->clkmode) {
1516 case 0:
1517 case 2:
1518 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | intp->clkmode);
1519 break;
1520 default:
1521 selosci = 0x02 & stv0900_read_reg(intp, R0900_SYNTCTRL);
1522 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | selosci);
1523 break;
1524 }
1525 msleep(3);
1526
1527 intp->mclk = stv0900_get_mclk_freq(intp, intp->quartz);
1528 if (intp->errs)
1529 error = STV0900_I2C_ERROR;
1530
1531 return error;
1532 }
1533
stv0900_status(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)1534 static int stv0900_status(struct stv0900_internal *intp,
1535 enum fe_stv0900_demod_num demod)
1536 {
1537 enum fe_stv0900_search_state demod_state;
1538 int locked = FALSE;
1539 u8 tsbitrate0_val, tsbitrate1_val;
1540 s32 bitrate;
1541
1542 demod_state = stv0900_get_bits(intp, HEADER_MODE);
1543 switch (demod_state) {
1544 case STV0900_SEARCH:
1545 case STV0900_PLH_DETECTED:
1546 default:
1547 locked = FALSE;
1548 break;
1549 case STV0900_DVBS2_FOUND:
1550 locked = stv0900_get_bits(intp, LOCK_DEFINITIF) &&
1551 stv0900_get_bits(intp, PKTDELIN_LOCK) &&
1552 stv0900_get_bits(intp, TSFIFO_LINEOK);
1553 break;
1554 case STV0900_DVBS_FOUND:
1555 locked = stv0900_get_bits(intp, LOCK_DEFINITIF) &&
1556 stv0900_get_bits(intp, LOCKEDVIT) &&
1557 stv0900_get_bits(intp, TSFIFO_LINEOK);
1558 break;
1559 }
1560
1561 dprintk("%s: locked = %d\n", __func__, locked);
1562
1563 if (stvdebug) {
1564 /* Print TS bitrate */
1565 tsbitrate0_val = stv0900_read_reg(intp, TSBITRATE0);
1566 tsbitrate1_val = stv0900_read_reg(intp, TSBITRATE1);
1567 /* Formula Bit rate = Mclk * px_tsfifo_bitrate / 16384 */
1568 bitrate = (stv0900_get_mclk_freq(intp, intp->quartz)/1000000)
1569 * (tsbitrate1_val << 8 | tsbitrate0_val);
1570 bitrate /= 16384;
1571 dprintk("TS bitrate = %d Mbit/sec \n", bitrate);
1572 };
1573
1574 return locked;
1575 }
1576
stv0900_search(struct dvb_frontend * fe,struct dvb_frontend_parameters * params)1577 static enum dvbfe_search stv0900_search(struct dvb_frontend *fe,
1578 struct dvb_frontend_parameters *params)
1579 {
1580 struct stv0900_state *state = fe->demodulator_priv;
1581 struct stv0900_internal *intp = state->internal;
1582 enum fe_stv0900_demod_num demod = state->demod;
1583 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
1584
1585 struct stv0900_search_params p_search;
1586 struct stv0900_signal_info p_result = intp->result[demod];
1587
1588 enum fe_stv0900_error error = STV0900_NO_ERROR;
1589
1590 dprintk("%s: ", __func__);
1591
1592 if (!(INRANGE(100000, c->symbol_rate, 70000000)))
1593 return DVBFE_ALGO_SEARCH_FAILED;
1594
1595 if (state->config->set_ts_params)
1596 state->config->set_ts_params(fe, 0);
1597
1598 p_result.locked = FALSE;
1599 p_search.path = demod;
1600 p_search.frequency = c->frequency;
1601 p_search.symbol_rate = c->symbol_rate;
1602 p_search.search_range = 10000000;
1603 p_search.fec = STV0900_FEC_UNKNOWN;
1604 p_search.standard = STV0900_AUTO_SEARCH;
1605 p_search.iq_inversion = STV0900_IQ_AUTO;
1606 p_search.search_algo = STV0900_BLIND_SEARCH;
1607 /* Speeds up DVB-S searching */
1608 if (c->delivery_system == SYS_DVBS)
1609 p_search.standard = STV0900_SEARCH_DVBS1;
1610
1611 intp->srch_standard[demod] = p_search.standard;
1612 intp->symbol_rate[demod] = p_search.symbol_rate;
1613 intp->srch_range[demod] = p_search.search_range;
1614 intp->freq[demod] = p_search.frequency;
1615 intp->srch_algo[demod] = p_search.search_algo;
1616 intp->srch_iq_inv[demod] = p_search.iq_inversion;
1617 intp->fec[demod] = p_search.fec;
1618 if ((stv0900_algo(fe) == STV0900_RANGEOK) &&
1619 (intp->errs == STV0900_NO_ERROR)) {
1620 p_result.locked = intp->result[demod].locked;
1621 p_result.standard = intp->result[demod].standard;
1622 p_result.frequency = intp->result[demod].frequency;
1623 p_result.symbol_rate = intp->result[demod].symbol_rate;
1624 p_result.fec = intp->result[demod].fec;
1625 p_result.modcode = intp->result[demod].modcode;
1626 p_result.pilot = intp->result[demod].pilot;
1627 p_result.frame_len = intp->result[demod].frame_len;
1628 p_result.spectrum = intp->result[demod].spectrum;
1629 p_result.rolloff = intp->result[demod].rolloff;
1630 p_result.modulation = intp->result[demod].modulation;
1631 } else {
1632 p_result.locked = FALSE;
1633 switch (intp->err[demod]) {
1634 case STV0900_I2C_ERROR:
1635 error = STV0900_I2C_ERROR;
1636 break;
1637 case STV0900_NO_ERROR:
1638 default:
1639 error = STV0900_SEARCH_FAILED;
1640 break;
1641 }
1642 }
1643
1644 if ((p_result.locked == TRUE) && (error == STV0900_NO_ERROR)) {
1645 dprintk("Search Success\n");
1646 return DVBFE_ALGO_SEARCH_SUCCESS;
1647 } else {
1648 dprintk("Search Fail\n");
1649 return DVBFE_ALGO_SEARCH_FAILED;
1650 }
1651
1652 }
1653
stv0900_read_status(struct dvb_frontend * fe,enum fe_status * status)1654 static int stv0900_read_status(struct dvb_frontend *fe, enum fe_status *status)
1655 {
1656 struct stv0900_state *state = fe->demodulator_priv;
1657
1658 dprintk("%s: ", __func__);
1659
1660 if ((stv0900_status(state->internal, state->demod)) == TRUE) {
1661 dprintk("DEMOD LOCK OK\n");
1662 *status = FE_HAS_CARRIER
1663 | FE_HAS_VITERBI
1664 | FE_HAS_SYNC
1665 | FE_HAS_LOCK;
1666 if (state->config->set_lock_led)
1667 state->config->set_lock_led(fe, 1);
1668 } else {
1669 *status = 0;
1670 if (state->config->set_lock_led)
1671 state->config->set_lock_led(fe, 0);
1672 dprintk("DEMOD LOCK FAIL\n");
1673 }
1674
1675 return 0;
1676 }
1677
stv0900_track(struct dvb_frontend * fe,struct dvb_frontend_parameters * p)1678 static int stv0900_track(struct dvb_frontend *fe,
1679 struct dvb_frontend_parameters *p)
1680 {
1681 return 0;
1682 }
1683
stv0900_stop_ts(struct dvb_frontend * fe,int stop_ts)1684 static int stv0900_stop_ts(struct dvb_frontend *fe, int stop_ts)
1685 {
1686
1687 struct stv0900_state *state = fe->demodulator_priv;
1688 struct stv0900_internal *intp = state->internal;
1689 enum fe_stv0900_demod_num demod = state->demod;
1690
1691 if (stop_ts == TRUE)
1692 stv0900_write_bits(intp, RST_HWARE, 1);
1693 else
1694 stv0900_write_bits(intp, RST_HWARE, 0);
1695
1696 return 0;
1697 }
1698
stv0900_diseqc_init(struct dvb_frontend * fe)1699 static int stv0900_diseqc_init(struct dvb_frontend *fe)
1700 {
1701 struct stv0900_state *state = fe->demodulator_priv;
1702 struct stv0900_internal *intp = state->internal;
1703 enum fe_stv0900_demod_num demod = state->demod;
1704
1705 stv0900_write_bits(intp, DISTX_MODE, state->config->diseqc_mode);
1706 stv0900_write_bits(intp, DISEQC_RESET, 1);
1707 stv0900_write_bits(intp, DISEQC_RESET, 0);
1708
1709 return 0;
1710 }
1711
stv0900_init(struct dvb_frontend * fe)1712 static int stv0900_init(struct dvb_frontend *fe)
1713 {
1714 dprintk("%s\n", __func__);
1715
1716 stv0900_stop_ts(fe, 1);
1717 stv0900_diseqc_init(fe);
1718
1719 return 0;
1720 }
1721
stv0900_diseqc_send(struct stv0900_internal * intp,u8 * data,u32 NbData,enum fe_stv0900_demod_num demod)1722 static int stv0900_diseqc_send(struct stv0900_internal *intp , u8 *data,
1723 u32 NbData, enum fe_stv0900_demod_num demod)
1724 {
1725 s32 i = 0;
1726
1727 stv0900_write_bits(intp, DIS_PRECHARGE, 1);
1728 while (i < NbData) {
1729 while (stv0900_get_bits(intp, FIFO_FULL))
1730 ;/* checkpatch complains */
1731 stv0900_write_reg(intp, DISTXDATA, data[i]);
1732 i++;
1733 }
1734
1735 stv0900_write_bits(intp, DIS_PRECHARGE, 0);
1736 i = 0;
1737 while ((stv0900_get_bits(intp, TX_IDLE) != 1) && (i < 10)) {
1738 msleep(10);
1739 i++;
1740 }
1741
1742 return 0;
1743 }
1744
stv0900_send_master_cmd(struct dvb_frontend * fe,struct dvb_diseqc_master_cmd * cmd)1745 static int stv0900_send_master_cmd(struct dvb_frontend *fe,
1746 struct dvb_diseqc_master_cmd *cmd)
1747 {
1748 struct stv0900_state *state = fe->demodulator_priv;
1749
1750 return stv0900_diseqc_send(state->internal,
1751 cmd->msg,
1752 cmd->msg_len,
1753 state->demod);
1754 }
1755
stv0900_send_burst(struct dvb_frontend * fe,fe_sec_mini_cmd_t burst)1756 static int stv0900_send_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
1757 {
1758 struct stv0900_state *state = fe->demodulator_priv;
1759 struct stv0900_internal *intp = state->internal;
1760 enum fe_stv0900_demod_num demod = state->demod;
1761 u8 data;
1762
1763
1764 switch (burst) {
1765 case SEC_MINI_A:
1766 stv0900_write_bits(intp, DISTX_MODE, 3);/* Unmodulated */
1767 data = 0x00;
1768 stv0900_diseqc_send(intp, &data, 1, state->demod);
1769 break;
1770 case SEC_MINI_B:
1771 stv0900_write_bits(intp, DISTX_MODE, 2);/* Modulated */
1772 data = 0xff;
1773 stv0900_diseqc_send(intp, &data, 1, state->demod);
1774 break;
1775 }
1776
1777 return 0;
1778 }
1779
stv0900_recv_slave_reply(struct dvb_frontend * fe,struct dvb_diseqc_slave_reply * reply)1780 static int stv0900_recv_slave_reply(struct dvb_frontend *fe,
1781 struct dvb_diseqc_slave_reply *reply)
1782 {
1783 struct stv0900_state *state = fe->demodulator_priv;
1784 struct stv0900_internal *intp = state->internal;
1785 enum fe_stv0900_demod_num demod = state->demod;
1786 s32 i = 0;
1787
1788 reply->msg_len = 0;
1789
1790 while ((stv0900_get_bits(intp, RX_END) != 1) && (i < 10)) {
1791 msleep(10);
1792 i++;
1793 }
1794
1795 if (stv0900_get_bits(intp, RX_END)) {
1796 reply->msg_len = stv0900_get_bits(intp, FIFO_BYTENBR);
1797
1798 for (i = 0; i < reply->msg_len; i++)
1799 reply->msg[i] = stv0900_read_reg(intp, DISRXDATA);
1800 }
1801
1802 return 0;
1803 }
1804
stv0900_set_tone(struct dvb_frontend * fe,fe_sec_tone_mode_t toneoff)1805 static int stv0900_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t toneoff)
1806 {
1807 struct stv0900_state *state = fe->demodulator_priv;
1808 struct stv0900_internal *intp = state->internal;
1809 enum fe_stv0900_demod_num demod = state->demod;
1810
1811 dprintk("%s: %s\n", __func__, ((toneoff == 0) ? "On" : "Off"));
1812
1813 switch (toneoff) {
1814 case SEC_TONE_ON:
1815 /*Set the DiseqC mode to 22Khz _continues_ tone*/
1816 stv0900_write_bits(intp, DISTX_MODE, 0);
1817 stv0900_write_bits(intp, DISEQC_RESET, 1);
1818 /*release DiseqC reset to enable the 22KHz tone*/
1819 stv0900_write_bits(intp, DISEQC_RESET, 0);
1820 break;
1821 case SEC_TONE_OFF:
1822 /*return diseqc mode to config->diseqc_mode.
1823 Usually it's without _continues_ tone */
1824 stv0900_write_bits(intp, DISTX_MODE,
1825 state->config->diseqc_mode);
1826 /*maintain the DiseqC reset to disable the 22KHz tone*/
1827 stv0900_write_bits(intp, DISEQC_RESET, 1);
1828 stv0900_write_bits(intp, DISEQC_RESET, 0);
1829 break;
1830 default:
1831 return -EINVAL;
1832 }
1833
1834 return 0;
1835 }
1836
stv0900_release(struct dvb_frontend * fe)1837 static void stv0900_release(struct dvb_frontend *fe)
1838 {
1839 struct stv0900_state *state = fe->demodulator_priv;
1840
1841 dprintk("%s\n", __func__);
1842
1843 if (state->config->set_lock_led)
1844 state->config->set_lock_led(fe, 0);
1845
1846 if ((--(state->internal->dmds_used)) <= 0) {
1847
1848 dprintk("%s: Actually removing\n", __func__);
1849
1850 remove_inode(state->internal);
1851 kfree(state->internal);
1852 }
1853
1854 kfree(state);
1855 }
1856
stv0900_sleep(struct dvb_frontend * fe)1857 static int stv0900_sleep(struct dvb_frontend *fe)
1858 {
1859 struct stv0900_state *state = fe->demodulator_priv;
1860
1861 dprintk("%s\n", __func__);
1862
1863 if (state->config->set_lock_led)
1864 state->config->set_lock_led(fe, 0);
1865
1866 return 0;
1867 }
1868
stv0900_get_frontend(struct dvb_frontend * fe,struct dvb_frontend_parameters * p)1869 static int stv0900_get_frontend(struct dvb_frontend *fe,
1870 struct dvb_frontend_parameters *p)
1871 {
1872 struct stv0900_state *state = fe->demodulator_priv;
1873 struct stv0900_internal *intp = state->internal;
1874 enum fe_stv0900_demod_num demod = state->demod;
1875 struct stv0900_signal_info p_result = intp->result[demod];
1876
1877 p->frequency = p_result.locked ? p_result.frequency : 0;
1878 p->u.qpsk.symbol_rate = p_result.locked ? p_result.symbol_rate : 0;
1879 return 0;
1880 }
1881
1882 static struct dvb_frontend_ops stv0900_ops = {
1883
1884 .info = {
1885 .name = "STV0900 frontend",
1886 .type = FE_QPSK,
1887 .frequency_min = 950000,
1888 .frequency_max = 2150000,
1889 .frequency_stepsize = 125,
1890 .frequency_tolerance = 0,
1891 .symbol_rate_min = 1000000,
1892 .symbol_rate_max = 45000000,
1893 .symbol_rate_tolerance = 500,
1894 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
1895 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 |
1896 FE_CAN_FEC_7_8 | FE_CAN_QPSK |
1897 FE_CAN_2G_MODULATION |
1898 FE_CAN_FEC_AUTO
1899 },
1900 .release = stv0900_release,
1901 .init = stv0900_init,
1902 .get_frontend = stv0900_get_frontend,
1903 .sleep = stv0900_sleep,
1904 .get_frontend_algo = stv0900_frontend_algo,
1905 .i2c_gate_ctrl = stv0900_i2c_gate_ctrl,
1906 .diseqc_send_master_cmd = stv0900_send_master_cmd,
1907 .diseqc_send_burst = stv0900_send_burst,
1908 .diseqc_recv_slave_reply = stv0900_recv_slave_reply,
1909 .set_tone = stv0900_set_tone,
1910 .set_property = stb0900_set_property,
1911 .get_property = stb0900_get_property,
1912 .search = stv0900_search,
1913 .track = stv0900_track,
1914 .read_status = stv0900_read_status,
1915 .read_ber = stv0900_read_ber,
1916 .read_signal_strength = stv0900_read_signal_strength,
1917 .read_snr = stv0900_read_snr,
1918 .read_ucblocks = stv0900_read_ucblocks,
1919 };
1920
stv0900_attach(const struct stv0900_config * config,struct i2c_adapter * i2c,int demod)1921 struct dvb_frontend *stv0900_attach(const struct stv0900_config *config,
1922 struct i2c_adapter *i2c,
1923 int demod)
1924 {
1925 struct stv0900_state *state = NULL;
1926 struct stv0900_init_params init_params;
1927 enum fe_stv0900_error err_stv0900;
1928
1929 state = kzalloc(sizeof(struct stv0900_state), GFP_KERNEL);
1930 if (state == NULL)
1931 goto error;
1932
1933 state->demod = demod;
1934 state->config = config;
1935 state->i2c_adap = i2c;
1936
1937 memcpy(&state->frontend.ops, &stv0900_ops,
1938 sizeof(struct dvb_frontend_ops));
1939 state->frontend.demodulator_priv = state;
1940
1941 switch (demod) {
1942 case 0:
1943 case 1:
1944 init_params.dmd_ref_clk = config->xtal;
1945 init_params.demod_mode = config->demod_mode;
1946 init_params.rolloff = STV0900_35;
1947 init_params.path1_ts_clock = config->path1_mode;
1948 init_params.tun1_maddress = config->tun1_maddress;
1949 init_params.tun1_iq_inv = STV0900_IQ_NORMAL;
1950 init_params.tuner1_adc = config->tun1_adc;
1951 init_params.tuner1_type = config->tun1_type;
1952 init_params.path2_ts_clock = config->path2_mode;
1953 init_params.ts_config = config->ts_config_regs;
1954 init_params.tun2_maddress = config->tun2_maddress;
1955 init_params.tuner2_adc = config->tun2_adc;
1956 init_params.tuner2_type = config->tun2_type;
1957 init_params.tun2_iq_inv = STV0900_IQ_SWAPPED;
1958
1959 err_stv0900 = stv0900_init_internal(&state->frontend,
1960 &init_params);
1961
1962 if (err_stv0900)
1963 goto error;
1964
1965 break;
1966 default:
1967 goto error;
1968 break;
1969 }
1970
1971 dprintk("%s: Attaching STV0900 demodulator(%d) \n", __func__, demod);
1972 return &state->frontend;
1973
1974 error:
1975 dprintk("%s: Failed to attach STV0900 demodulator(%d) \n",
1976 __func__, demod);
1977 kfree(state);
1978 return NULL;
1979 }
1980 EXPORT_SYMBOL(stv0900_attach);
1981
1982 MODULE_PARM_DESC(debug, "Set debug");
1983
1984 MODULE_AUTHOR("Igor M. Liplianin");
1985 MODULE_DESCRIPTION("ST STV0900 frontend");
1986 MODULE_LICENSE("GPL");
1987