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 if (intp == NULL)
304 return STV0900_INVALID_HANDLE;
305
306 if (intp->errs)
307 return STV0900_I2C_ERROR;
308
309 dprintk("%s: Mclk set to %d, Quartz = %d\n", __func__, mclk,
310 intp->quartz);
311
312 clk_sel = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6);
313 m_div = ((clk_sel * mclk) / intp->quartz) - 1;
314 stv0900_write_bits(intp, F0900_M_DIV, m_div);
315 intp->mclk = stv0900_get_mclk_freq(intp,
316 intp->quartz);
317
318 /*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 frontend_ops = &fe->ops;
528 tuner_ops = &frontend_ops->tuner_ops;
529
530 if (tuner_ops->set_frequency) {
531 if ((tuner_ops->set_frequency(fe, frequency)) < 0)
532 dprintk("%s: Invalid parameter\n", __func__);
533 else
534 dprintk("%s: Frequency=%d\n", __func__, frequency);
535
536 }
537
538 if (tuner_ops->set_bandwidth) {
539 if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0)
540 dprintk("%s: Invalid parameter\n", __func__);
541 else
542 dprintk("%s: Bandwidth=%d\n", __func__, bandwidth);
543
544 }
545 }
546
stv0900_set_bandwidth(struct dvb_frontend * fe,u32 bandwidth)547 void stv0900_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
548 {
549 struct dvb_frontend_ops *frontend_ops = NULL;
550 struct dvb_tuner_ops *tuner_ops = NULL;
551
552 frontend_ops = &fe->ops;
553 tuner_ops = &frontend_ops->tuner_ops;
554
555 if (tuner_ops->set_bandwidth) {
556 if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0)
557 dprintk("%s: Invalid parameter\n", __func__);
558 else
559 dprintk("%s: Bandwidth=%d\n", __func__, bandwidth);
560
561 }
562 }
563
stv0900_get_freq_auto(struct stv0900_internal * intp,int demod)564 u32 stv0900_get_freq_auto(struct stv0900_internal *intp, int demod)
565 {
566 u32 freq, round;
567 /* Formulat :
568 Tuner_Frequency(MHz) = Regs / 64
569 Tuner_granularity(MHz) = Regs / 2048
570 real_Tuner_Frequency = Tuner_Frequency(MHz) - Tuner_granularity(MHz)
571 */
572 freq = (stv0900_get_bits(intp, TUN_RFFREQ2) << 10) +
573 (stv0900_get_bits(intp, TUN_RFFREQ1) << 2) +
574 stv0900_get_bits(intp, TUN_RFFREQ0);
575
576 freq = (freq * 1000) / 64;
577
578 round = (stv0900_get_bits(intp, TUN_RFRESTE1) >> 2) +
579 stv0900_get_bits(intp, TUN_RFRESTE0);
580
581 round = (round * 1000) / 2048;
582
583 return freq + round;
584 }
585
stv0900_set_tuner_auto(struct stv0900_internal * intp,u32 Frequency,u32 Bandwidth,int demod)586 void stv0900_set_tuner_auto(struct stv0900_internal *intp, u32 Frequency,
587 u32 Bandwidth, int demod)
588 {
589 u32 tunerFrequency;
590 /* Formulat:
591 Tuner_frequency_reg= Frequency(MHz)*64
592 */
593 tunerFrequency = (Frequency * 64) / 1000;
594
595 stv0900_write_bits(intp, TUN_RFFREQ2, (tunerFrequency >> 10));
596 stv0900_write_bits(intp, TUN_RFFREQ1, (tunerFrequency >> 2) & 0xff);
597 stv0900_write_bits(intp, TUN_RFFREQ0, (tunerFrequency & 0x03));
598 /* Low Pass Filter = BW /2 (MHz)*/
599 stv0900_write_bits(intp, TUN_BW, Bandwidth / 2000000);
600 /* Tuner Write trig */
601 stv0900_write_reg(intp, TNRLD, 1);
602 }
603
stv0900_get_rf_level(struct stv0900_internal * intp,const struct stv0900_table * lookup,enum fe_stv0900_demod_num demod)604 static s32 stv0900_get_rf_level(struct stv0900_internal *intp,
605 const struct stv0900_table *lookup,
606 enum fe_stv0900_demod_num demod)
607 {
608 s32 agc_gain = 0,
609 imin,
610 imax,
611 i,
612 rf_lvl = 0;
613
614 dprintk("%s\n", __func__);
615
616 if ((lookup == NULL) || (lookup->size <= 0))
617 return 0;
618
619 agc_gain = MAKEWORD(stv0900_get_bits(intp, AGCIQ_VALUE1),
620 stv0900_get_bits(intp, AGCIQ_VALUE0));
621
622 imin = 0;
623 imax = lookup->size - 1;
624 if (INRANGE(lookup->table[imin].regval, agc_gain,
625 lookup->table[imax].regval)) {
626 while ((imax - imin) > 1) {
627 i = (imax + imin) >> 1;
628
629 if (INRANGE(lookup->table[imin].regval,
630 agc_gain,
631 lookup->table[i].regval))
632 imax = i;
633 else
634 imin = i;
635 }
636
637 rf_lvl = (s32)agc_gain - lookup->table[imin].regval;
638 rf_lvl *= (lookup->table[imax].realval -
639 lookup->table[imin].realval);
640 rf_lvl /= (lookup->table[imax].regval -
641 lookup->table[imin].regval);
642 rf_lvl += lookup->table[imin].realval;
643 } else if (agc_gain > lookup->table[0].regval)
644 rf_lvl = 5;
645 else if (agc_gain < lookup->table[lookup->size-1].regval)
646 rf_lvl = -100;
647
648 dprintk("%s: RFLevel = %d\n", __func__, rf_lvl);
649
650 return rf_lvl;
651 }
652
stv0900_read_signal_strength(struct dvb_frontend * fe,u16 * strength)653 static int stv0900_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
654 {
655 struct stv0900_state *state = fe->demodulator_priv;
656 struct stv0900_internal *internal = state->internal;
657 s32 rflevel = stv0900_get_rf_level(internal, &stv0900_rf,
658 state->demod);
659
660 rflevel = (rflevel + 100) * (65535 / 70);
661 if (rflevel < 0)
662 rflevel = 0;
663
664 if (rflevel > 65535)
665 rflevel = 65535;
666
667 *strength = rflevel;
668
669 return 0;
670 }
671
stv0900_carr_get_quality(struct dvb_frontend * fe,const struct stv0900_table * lookup)672 static s32 stv0900_carr_get_quality(struct dvb_frontend *fe,
673 const struct stv0900_table *lookup)
674 {
675 struct stv0900_state *state = fe->demodulator_priv;
676 struct stv0900_internal *intp = state->internal;
677 enum fe_stv0900_demod_num demod = state->demod;
678
679 s32 c_n = -100,
680 regval,
681 imin,
682 imax,
683 i,
684 noise_field1,
685 noise_field0;
686
687 dprintk("%s\n", __func__);
688
689 if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
690 noise_field1 = NOSPLHT_NORMED1;
691 noise_field0 = NOSPLHT_NORMED0;
692 } else {
693 noise_field1 = NOSDATAT_NORMED1;
694 noise_field0 = NOSDATAT_NORMED0;
695 }
696
697 if (stv0900_get_bits(intp, LOCK_DEFINITIF)) {
698 if ((lookup != NULL) && lookup->size) {
699 regval = 0;
700 msleep(5);
701 for (i = 0; i < 16; i++) {
702 regval += MAKEWORD(stv0900_get_bits(intp,
703 noise_field1),
704 stv0900_get_bits(intp,
705 noise_field0));
706 msleep(1);
707 }
708
709 regval /= 16;
710 imin = 0;
711 imax = lookup->size - 1;
712 if (INRANGE(lookup->table[imin].regval,
713 regval,
714 lookup->table[imax].regval)) {
715 while ((imax - imin) > 1) {
716 i = (imax + imin) >> 1;
717 if (INRANGE(lookup->table[imin].regval,
718 regval,
719 lookup->table[i].regval))
720 imax = i;
721 else
722 imin = i;
723 }
724
725 c_n = ((regval - lookup->table[imin].regval)
726 * (lookup->table[imax].realval
727 - lookup->table[imin].realval)
728 / (lookup->table[imax].regval
729 - lookup->table[imin].regval))
730 + lookup->table[imin].realval;
731 } else if (regval < lookup->table[imin].regval)
732 c_n = 1000;
733 }
734 }
735
736 return c_n;
737 }
738
stv0900_read_ucblocks(struct dvb_frontend * fe,u32 * ucblocks)739 static int stv0900_read_ucblocks(struct dvb_frontend *fe, u32 * ucblocks)
740 {
741 struct stv0900_state *state = fe->demodulator_priv;
742 struct stv0900_internal *intp = state->internal;
743 enum fe_stv0900_demod_num demod = state->demod;
744 u8 err_val1, err_val0;
745 u32 header_err_val = 0;
746
747 *ucblocks = 0x0;
748 if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
749 /* DVB-S2 delineator errors count */
750
751 /* retreiving number for errnous headers */
752 err_val1 = stv0900_read_reg(intp, BBFCRCKO1);
753 err_val0 = stv0900_read_reg(intp, BBFCRCKO0);
754 header_err_val = (err_val1 << 8) | err_val0;
755
756 /* retreiving number for errnous packets */
757 err_val1 = stv0900_read_reg(intp, UPCRCKO1);
758 err_val0 = stv0900_read_reg(intp, UPCRCKO0);
759 *ucblocks = (err_val1 << 8) | err_val0;
760 *ucblocks += header_err_val;
761 }
762
763 return 0;
764 }
765
stv0900_read_snr(struct dvb_frontend * fe,u16 * snr)766 static int stv0900_read_snr(struct dvb_frontend *fe, u16 *snr)
767 {
768 s32 snrlcl = stv0900_carr_get_quality(fe,
769 (const struct stv0900_table *)&stv0900_s2_cn);
770 snrlcl = (snrlcl + 30) * 384;
771 if (snrlcl < 0)
772 snrlcl = 0;
773
774 if (snrlcl > 65535)
775 snrlcl = 65535;
776
777 *snr = snrlcl;
778
779 return 0;
780 }
781
stv0900_get_ber(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)782 static u32 stv0900_get_ber(struct stv0900_internal *intp,
783 enum fe_stv0900_demod_num demod)
784 {
785 u32 ber = 10000000, i;
786 s32 demod_state;
787
788 demod_state = stv0900_get_bits(intp, HEADER_MODE);
789
790 switch (demod_state) {
791 case STV0900_SEARCH:
792 case STV0900_PLH_DETECTED:
793 default:
794 ber = 10000000;
795 break;
796 case STV0900_DVBS_FOUND:
797 ber = 0;
798 for (i = 0; i < 5; i++) {
799 msleep(5);
800 ber += stv0900_get_err_count(intp, 0, demod);
801 }
802
803 ber /= 5;
804 if (stv0900_get_bits(intp, PRFVIT)) {
805 ber *= 9766;
806 ber = ber >> 13;
807 }
808
809 break;
810 case STV0900_DVBS2_FOUND:
811 ber = 0;
812 for (i = 0; i < 5; i++) {
813 msleep(5);
814 ber += stv0900_get_err_count(intp, 0, demod);
815 }
816
817 ber /= 5;
818 if (stv0900_get_bits(intp, PKTDELIN_LOCK)) {
819 ber *= 9766;
820 ber = ber >> 13;
821 }
822
823 break;
824 }
825
826 return ber;
827 }
828
stv0900_read_ber(struct dvb_frontend * fe,u32 * ber)829 static int stv0900_read_ber(struct dvb_frontend *fe, u32 *ber)
830 {
831 struct stv0900_state *state = fe->demodulator_priv;
832 struct stv0900_internal *internal = state->internal;
833
834 *ber = stv0900_get_ber(internal, state->demod);
835
836 return 0;
837 }
838
stv0900_get_demod_lock(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod,s32 time_out)839 int stv0900_get_demod_lock(struct stv0900_internal *intp,
840 enum fe_stv0900_demod_num demod, s32 time_out)
841 {
842 s32 timer = 0,
843 lock = 0;
844
845 enum fe_stv0900_search_state dmd_state;
846
847 while ((timer < time_out) && (lock == 0)) {
848 dmd_state = stv0900_get_bits(intp, HEADER_MODE);
849 dprintk("Demod State = %d\n", dmd_state);
850 switch (dmd_state) {
851 case STV0900_SEARCH:
852 case STV0900_PLH_DETECTED:
853 default:
854 lock = 0;
855 break;
856 case STV0900_DVBS2_FOUND:
857 case STV0900_DVBS_FOUND:
858 lock = stv0900_get_bits(intp, LOCK_DEFINITIF);
859 break;
860 }
861
862 if (lock == 0)
863 msleep(10);
864
865 timer += 10;
866 }
867
868 if (lock)
869 dprintk("DEMOD LOCK OK\n");
870 else
871 dprintk("DEMOD LOCK FAIL\n");
872
873 return lock;
874 }
875
stv0900_stop_all_s2_modcod(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)876 void stv0900_stop_all_s2_modcod(struct stv0900_internal *intp,
877 enum fe_stv0900_demod_num demod)
878 {
879 s32 regflist,
880 i;
881
882 dprintk("%s\n", __func__);
883
884 regflist = MODCODLST0;
885
886 for (i = 0; i < 16; i++)
887 stv0900_write_reg(intp, regflist + i, 0xff);
888 }
889
stv0900_activate_s2_modcod(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)890 void stv0900_activate_s2_modcod(struct stv0900_internal *intp,
891 enum fe_stv0900_demod_num demod)
892 {
893 u32 matype,
894 mod_code,
895 fmod,
896 reg_index,
897 field_index;
898
899 dprintk("%s\n", __func__);
900
901 if (intp->chip_id <= 0x11) {
902 msleep(5);
903
904 mod_code = stv0900_read_reg(intp, PLHMODCOD);
905 matype = mod_code & 0x3;
906 mod_code = (mod_code & 0x7f) >> 2;
907
908 reg_index = MODCODLSTF - mod_code / 2;
909 field_index = mod_code % 2;
910
911 switch (matype) {
912 case 0:
913 default:
914 fmod = 14;
915 break;
916 case 1:
917 fmod = 13;
918 break;
919 case 2:
920 fmod = 11;
921 break;
922 case 3:
923 fmod = 7;
924 break;
925 }
926
927 if ((INRANGE(STV0900_QPSK_12, mod_code, STV0900_8PSK_910))
928 && (matype <= 1)) {
929 if (field_index == 0)
930 stv0900_write_reg(intp, reg_index,
931 0xf0 | fmod);
932 else
933 stv0900_write_reg(intp, reg_index,
934 (fmod << 4) | 0xf);
935 }
936
937 } else if (intp->chip_id >= 0x12) {
938 for (reg_index = 0; reg_index < 7; reg_index++)
939 stv0900_write_reg(intp, MODCODLST0 + reg_index, 0xff);
940
941 stv0900_write_reg(intp, MODCODLSTE, 0xff);
942 stv0900_write_reg(intp, MODCODLSTF, 0xcf);
943 for (reg_index = 0; reg_index < 8; reg_index++)
944 stv0900_write_reg(intp, MODCODLST7 + reg_index, 0xcc);
945
946
947 }
948 }
949
stv0900_activate_s2_modcod_single(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)950 void stv0900_activate_s2_modcod_single(struct stv0900_internal *intp,
951 enum fe_stv0900_demod_num demod)
952 {
953 u32 reg_index;
954
955 dprintk("%s\n", __func__);
956
957 stv0900_write_reg(intp, MODCODLST0, 0xff);
958 stv0900_write_reg(intp, MODCODLST1, 0xf0);
959 stv0900_write_reg(intp, MODCODLSTF, 0x0f);
960 for (reg_index = 0; reg_index < 13; reg_index++)
961 stv0900_write_reg(intp, MODCODLST2 + reg_index, 0);
962
963 }
964
stv0900_frontend_algo(struct dvb_frontend * fe)965 static enum dvbfe_algo stv0900_frontend_algo(struct dvb_frontend *fe)
966 {
967 return DVBFE_ALGO_CUSTOM;
968 }
969
stv0900_start_search(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)970 void stv0900_start_search(struct stv0900_internal *intp,
971 enum fe_stv0900_demod_num demod)
972 {
973 u32 freq;
974 s16 freq_s16 ;
975
976 stv0900_write_bits(intp, DEMOD_MODE, 0x1f);
977 if (intp->chip_id == 0x10)
978 stv0900_write_reg(intp, CORRELEXP, 0xaa);
979
980 if (intp->chip_id < 0x20)
981 stv0900_write_reg(intp, CARHDR, 0x55);
982
983 if (intp->chip_id <= 0x20) {
984 if (intp->symbol_rate[0] <= 5000000) {
985 stv0900_write_reg(intp, CARCFG, 0x44);
986 stv0900_write_reg(intp, CFRUP1, 0x0f);
987 stv0900_write_reg(intp, CFRUP0, 0xff);
988 stv0900_write_reg(intp, CFRLOW1, 0xf0);
989 stv0900_write_reg(intp, CFRLOW0, 0x00);
990 stv0900_write_reg(intp, RTCS2, 0x68);
991 } else {
992 stv0900_write_reg(intp, CARCFG, 0xc4);
993 stv0900_write_reg(intp, RTCS2, 0x44);
994 }
995
996 } else { /*cut 3.0 above*/
997 if (intp->symbol_rate[demod] <= 5000000)
998 stv0900_write_reg(intp, RTCS2, 0x68);
999 else
1000 stv0900_write_reg(intp, RTCS2, 0x44);
1001
1002 stv0900_write_reg(intp, CARCFG, 0x46);
1003 if (intp->srch_algo[demod] == STV0900_WARM_START) {
1004 freq = 1000 << 16;
1005 freq /= (intp->mclk / 1000);
1006 freq_s16 = (s16)freq;
1007 } else {
1008 freq = (intp->srch_range[demod] / 2000);
1009 if (intp->symbol_rate[demod] <= 5000000)
1010 freq += 80;
1011 else
1012 freq += 600;
1013
1014 freq = freq << 16;
1015 freq /= (intp->mclk / 1000);
1016 freq_s16 = (s16)freq;
1017 }
1018
1019 stv0900_write_bits(intp, CFR_UP1, MSB(freq_s16));
1020 stv0900_write_bits(intp, CFR_UP0, LSB(freq_s16));
1021 freq_s16 *= (-1);
1022 stv0900_write_bits(intp, CFR_LOW1, MSB(freq_s16));
1023 stv0900_write_bits(intp, CFR_LOW0, LSB(freq_s16));
1024 }
1025
1026 stv0900_write_reg(intp, CFRINIT1, 0);
1027 stv0900_write_reg(intp, CFRINIT0, 0);
1028
1029 if (intp->chip_id >= 0x20) {
1030 stv0900_write_reg(intp, EQUALCFG, 0x41);
1031 stv0900_write_reg(intp, FFECFG, 0x41);
1032
1033 if ((intp->srch_standard[demod] == STV0900_SEARCH_DVBS1) ||
1034 (intp->srch_standard[demod] == STV0900_SEARCH_DSS) ||
1035 (intp->srch_standard[demod] == STV0900_AUTO_SEARCH)) {
1036 stv0900_write_reg(intp, VITSCALE,
1037 0x82);
1038 stv0900_write_reg(intp, VAVSRVIT, 0x0);
1039 }
1040 }
1041
1042 stv0900_write_reg(intp, SFRSTEP, 0x00);
1043 stv0900_write_reg(intp, TMGTHRISE, 0xe0);
1044 stv0900_write_reg(intp, TMGTHFALL, 0xc0);
1045 stv0900_write_bits(intp, SCAN_ENABLE, 0);
1046 stv0900_write_bits(intp, CFR_AUTOSCAN, 0);
1047 stv0900_write_bits(intp, S1S2_SEQUENTIAL, 0);
1048 stv0900_write_reg(intp, RTC, 0x88);
1049 if (intp->chip_id >= 0x20) {
1050 if (intp->symbol_rate[demod] < 2000000) {
1051 if (intp->chip_id <= 0x20)
1052 stv0900_write_reg(intp, CARFREQ, 0x39);
1053 else /*cut 3.0*/
1054 stv0900_write_reg(intp, CARFREQ, 0x89);
1055
1056 stv0900_write_reg(intp, CARHDR, 0x40);
1057 } else if (intp->symbol_rate[demod] < 10000000) {
1058 stv0900_write_reg(intp, CARFREQ, 0x4c);
1059 stv0900_write_reg(intp, CARHDR, 0x20);
1060 } else {
1061 stv0900_write_reg(intp, CARFREQ, 0x4b);
1062 stv0900_write_reg(intp, CARHDR, 0x20);
1063 }
1064
1065 } else {
1066 if (intp->symbol_rate[demod] < 10000000)
1067 stv0900_write_reg(intp, CARFREQ, 0xef);
1068 else
1069 stv0900_write_reg(intp, CARFREQ, 0xed);
1070 }
1071
1072 switch (intp->srch_algo[demod]) {
1073 case STV0900_WARM_START:
1074 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1075 stv0900_write_reg(intp, DMDISTATE, 0x18);
1076 break;
1077 case STV0900_COLD_START:
1078 stv0900_write_reg(intp, DMDISTATE, 0x1f);
1079 stv0900_write_reg(intp, DMDISTATE, 0x15);
1080 break;
1081 default:
1082 break;
1083 }
1084 }
1085
stv0900_get_optim_carr_loop(s32 srate,enum fe_stv0900_modcode modcode,s32 pilot,u8 chip_id)1086 u8 stv0900_get_optim_carr_loop(s32 srate, enum fe_stv0900_modcode modcode,
1087 s32 pilot, u8 chip_id)
1088 {
1089 u8 aclc_value = 0x29;
1090 s32 i;
1091 const struct stv0900_car_loop_optim *cls2, *cllqs2, *cllas2;
1092
1093 dprintk("%s\n", __func__);
1094
1095 if (chip_id <= 0x12) {
1096 cls2 = FE_STV0900_S2CarLoop;
1097 cllqs2 = FE_STV0900_S2LowQPCarLoopCut30;
1098 cllas2 = FE_STV0900_S2APSKCarLoopCut30;
1099 } else if (chip_id == 0x20) {
1100 cls2 = FE_STV0900_S2CarLoopCut20;
1101 cllqs2 = FE_STV0900_S2LowQPCarLoopCut20;
1102 cllas2 = FE_STV0900_S2APSKCarLoopCut20;
1103 } else {
1104 cls2 = FE_STV0900_S2CarLoopCut30;
1105 cllqs2 = FE_STV0900_S2LowQPCarLoopCut30;
1106 cllas2 = FE_STV0900_S2APSKCarLoopCut30;
1107 }
1108
1109 if (modcode < STV0900_QPSK_12) {
1110 i = 0;
1111 while ((i < 3) && (modcode != cllqs2[i].modcode))
1112 i++;
1113
1114 if (i >= 3)
1115 i = 2;
1116 } else {
1117 i = 0;
1118 while ((i < 14) && (modcode != cls2[i].modcode))
1119 i++;
1120
1121 if (i >= 14) {
1122 i = 0;
1123 while ((i < 11) && (modcode != cllas2[i].modcode))
1124 i++;
1125
1126 if (i >= 11)
1127 i = 10;
1128 }
1129 }
1130
1131 if (modcode <= STV0900_QPSK_25) {
1132 if (pilot) {
1133 if (srate <= 3000000)
1134 aclc_value = cllqs2[i].car_loop_pilots_on_2;
1135 else if (srate <= 7000000)
1136 aclc_value = cllqs2[i].car_loop_pilots_on_5;
1137 else if (srate <= 15000000)
1138 aclc_value = cllqs2[i].car_loop_pilots_on_10;
1139 else if (srate <= 25000000)
1140 aclc_value = cllqs2[i].car_loop_pilots_on_20;
1141 else
1142 aclc_value = cllqs2[i].car_loop_pilots_on_30;
1143 } else {
1144 if (srate <= 3000000)
1145 aclc_value = cllqs2[i].car_loop_pilots_off_2;
1146 else if (srate <= 7000000)
1147 aclc_value = cllqs2[i].car_loop_pilots_off_5;
1148 else if (srate <= 15000000)
1149 aclc_value = cllqs2[i].car_loop_pilots_off_10;
1150 else if (srate <= 25000000)
1151 aclc_value = cllqs2[i].car_loop_pilots_off_20;
1152 else
1153 aclc_value = cllqs2[i].car_loop_pilots_off_30;
1154 }
1155
1156 } else if (modcode <= STV0900_8PSK_910) {
1157 if (pilot) {
1158 if (srate <= 3000000)
1159 aclc_value = cls2[i].car_loop_pilots_on_2;
1160 else if (srate <= 7000000)
1161 aclc_value = cls2[i].car_loop_pilots_on_5;
1162 else if (srate <= 15000000)
1163 aclc_value = cls2[i].car_loop_pilots_on_10;
1164 else if (srate <= 25000000)
1165 aclc_value = cls2[i].car_loop_pilots_on_20;
1166 else
1167 aclc_value = cls2[i].car_loop_pilots_on_30;
1168 } else {
1169 if (srate <= 3000000)
1170 aclc_value = cls2[i].car_loop_pilots_off_2;
1171 else if (srate <= 7000000)
1172 aclc_value = cls2[i].car_loop_pilots_off_5;
1173 else if (srate <= 15000000)
1174 aclc_value = cls2[i].car_loop_pilots_off_10;
1175 else if (srate <= 25000000)
1176 aclc_value = cls2[i].car_loop_pilots_off_20;
1177 else
1178 aclc_value = cls2[i].car_loop_pilots_off_30;
1179 }
1180
1181 } else {
1182 if (srate <= 3000000)
1183 aclc_value = cllas2[i].car_loop_pilots_on_2;
1184 else if (srate <= 7000000)
1185 aclc_value = cllas2[i].car_loop_pilots_on_5;
1186 else if (srate <= 15000000)
1187 aclc_value = cllas2[i].car_loop_pilots_on_10;
1188 else if (srate <= 25000000)
1189 aclc_value = cllas2[i].car_loop_pilots_on_20;
1190 else
1191 aclc_value = cllas2[i].car_loop_pilots_on_30;
1192 }
1193
1194 return aclc_value;
1195 }
1196
stv0900_get_optim_short_carr_loop(s32 srate,enum fe_stv0900_modulation modulation,u8 chip_id)1197 u8 stv0900_get_optim_short_carr_loop(s32 srate,
1198 enum fe_stv0900_modulation modulation,
1199 u8 chip_id)
1200 {
1201 const struct stv0900_short_frames_car_loop_optim *s2scl;
1202 const struct stv0900_short_frames_car_loop_optim_vs_mod *s2sclc30;
1203 s32 mod_index = 0;
1204 u8 aclc_value = 0x0b;
1205
1206 dprintk("%s\n", __func__);
1207
1208 s2scl = FE_STV0900_S2ShortCarLoop;
1209 s2sclc30 = FE_STV0900_S2ShortCarLoopCut30;
1210
1211 switch (modulation) {
1212 case STV0900_QPSK:
1213 default:
1214 mod_index = 0;
1215 break;
1216 case STV0900_8PSK:
1217 mod_index = 1;
1218 break;
1219 case STV0900_16APSK:
1220 mod_index = 2;
1221 break;
1222 case STV0900_32APSK:
1223 mod_index = 3;
1224 break;
1225 }
1226
1227 if (chip_id >= 0x30) {
1228 if (srate <= 3000000)
1229 aclc_value = s2sclc30[mod_index].car_loop_2;
1230 else if (srate <= 7000000)
1231 aclc_value = s2sclc30[mod_index].car_loop_5;
1232 else if (srate <= 15000000)
1233 aclc_value = s2sclc30[mod_index].car_loop_10;
1234 else if (srate <= 25000000)
1235 aclc_value = s2sclc30[mod_index].car_loop_20;
1236 else
1237 aclc_value = s2sclc30[mod_index].car_loop_30;
1238
1239 } else if (chip_id >= 0x20) {
1240 if (srate <= 3000000)
1241 aclc_value = s2scl[mod_index].car_loop_cut20_2;
1242 else if (srate <= 7000000)
1243 aclc_value = s2scl[mod_index].car_loop_cut20_5;
1244 else if (srate <= 15000000)
1245 aclc_value = s2scl[mod_index].car_loop_cut20_10;
1246 else if (srate <= 25000000)
1247 aclc_value = s2scl[mod_index].car_loop_cut20_20;
1248 else
1249 aclc_value = s2scl[mod_index].car_loop_cut20_30;
1250
1251 } else {
1252 if (srate <= 3000000)
1253 aclc_value = s2scl[mod_index].car_loop_cut12_2;
1254 else if (srate <= 7000000)
1255 aclc_value = s2scl[mod_index].car_loop_cut12_5;
1256 else if (srate <= 15000000)
1257 aclc_value = s2scl[mod_index].car_loop_cut12_10;
1258 else if (srate <= 25000000)
1259 aclc_value = s2scl[mod_index].car_loop_cut12_20;
1260 else
1261 aclc_value = s2scl[mod_index].car_loop_cut12_30;
1262
1263 }
1264
1265 return aclc_value;
1266 }
1267
1268 static
stv0900_st_dvbs2_single(struct stv0900_internal * intp,enum fe_stv0900_demod_mode LDPC_Mode,enum fe_stv0900_demod_num demod)1269 enum fe_stv0900_error stv0900_st_dvbs2_single(struct stv0900_internal *intp,
1270 enum fe_stv0900_demod_mode LDPC_Mode,
1271 enum fe_stv0900_demod_num demod)
1272 {
1273 enum fe_stv0900_error error = STV0900_NO_ERROR;
1274 s32 reg_ind;
1275
1276 dprintk("%s\n", __func__);
1277
1278 switch (LDPC_Mode) {
1279 case STV0900_DUAL:
1280 default:
1281 if ((intp->demod_mode != STV0900_DUAL)
1282 || (stv0900_get_bits(intp, F0900_DDEMOD) != 1)) {
1283 stv0900_write_reg(intp, R0900_GENCFG, 0x1d);
1284
1285 intp->demod_mode = STV0900_DUAL;
1286
1287 stv0900_write_bits(intp, F0900_FRESFEC, 1);
1288 stv0900_write_bits(intp, F0900_FRESFEC, 0);
1289
1290 for (reg_ind = 0; reg_ind < 7; reg_ind++)
1291 stv0900_write_reg(intp,
1292 R0900_P1_MODCODLST0 + reg_ind,
1293 0xff);
1294 for (reg_ind = 0; reg_ind < 8; reg_ind++)
1295 stv0900_write_reg(intp,
1296 R0900_P1_MODCODLST7 + reg_ind,
1297 0xcc);
1298
1299 stv0900_write_reg(intp, R0900_P1_MODCODLSTE, 0xff);
1300 stv0900_write_reg(intp, R0900_P1_MODCODLSTF, 0xcf);
1301
1302 for (reg_ind = 0; reg_ind < 7; reg_ind++)
1303 stv0900_write_reg(intp,
1304 R0900_P2_MODCODLST0 + reg_ind,
1305 0xff);
1306 for (reg_ind = 0; reg_ind < 8; reg_ind++)
1307 stv0900_write_reg(intp,
1308 R0900_P2_MODCODLST7 + reg_ind,
1309 0xcc);
1310
1311 stv0900_write_reg(intp, R0900_P2_MODCODLSTE, 0xff);
1312 stv0900_write_reg(intp, R0900_P2_MODCODLSTF, 0xcf);
1313 }
1314
1315 break;
1316 case STV0900_SINGLE:
1317 if (demod == STV0900_DEMOD_2) {
1318 stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_1);
1319 stv0900_activate_s2_modcod_single(intp,
1320 STV0900_DEMOD_2);
1321 stv0900_write_reg(intp, R0900_GENCFG, 0x06);
1322 } else {
1323 stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_2);
1324 stv0900_activate_s2_modcod_single(intp,
1325 STV0900_DEMOD_1);
1326 stv0900_write_reg(intp, R0900_GENCFG, 0x04);
1327 }
1328
1329 intp->demod_mode = STV0900_SINGLE;
1330
1331 stv0900_write_bits(intp, F0900_FRESFEC, 1);
1332 stv0900_write_bits(intp, F0900_FRESFEC, 0);
1333 stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 1);
1334 stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 0);
1335 stv0900_write_bits(intp, F0900_P2_ALGOSWRST, 1);
1336 stv0900_write_bits(intp, F0900_P2_ALGOSWRST, 0);
1337 break;
1338 }
1339
1340 return error;
1341 }
1342
stv0900_init_internal(struct dvb_frontend * fe,struct stv0900_init_params * p_init)1343 static enum fe_stv0900_error stv0900_init_internal(struct dvb_frontend *fe,
1344 struct stv0900_init_params *p_init)
1345 {
1346 struct stv0900_state *state = fe->demodulator_priv;
1347 enum fe_stv0900_error error = STV0900_NO_ERROR;
1348 enum fe_stv0900_error demodError = STV0900_NO_ERROR;
1349 struct stv0900_internal *intp = NULL;
1350 int selosci, i;
1351
1352 struct stv0900_inode *temp_int = find_inode(state->i2c_adap,
1353 state->config->demod_address);
1354
1355 dprintk("%s\n", __func__);
1356
1357 if ((temp_int != NULL) && (p_init->demod_mode == STV0900_DUAL)) {
1358 state->internal = temp_int->internal;
1359 (state->internal->dmds_used)++;
1360 dprintk("%s: Find Internal Structure!\n", __func__);
1361 return STV0900_NO_ERROR;
1362 } else {
1363 state->internal = kmalloc(sizeof(struct stv0900_internal),
1364 GFP_KERNEL);
1365 if (state->internal == NULL)
1366 return STV0900_INVALID_HANDLE;
1367 temp_int = append_internal(state->internal);
1368 if (temp_int == NULL) {
1369 kfree(state->internal);
1370 state->internal = NULL;
1371 return STV0900_INVALID_HANDLE;
1372 }
1373 state->internal->dmds_used = 1;
1374 state->internal->i2c_adap = state->i2c_adap;
1375 state->internal->i2c_addr = state->config->demod_address;
1376 state->internal->clkmode = state->config->clkmode;
1377 state->internal->errs = STV0900_NO_ERROR;
1378 dprintk("%s: Create New Internal Structure!\n", __func__);
1379 }
1380
1381 if (state->internal == NULL) {
1382 error = STV0900_INVALID_HANDLE;
1383 return error;
1384 }
1385
1386 demodError = stv0900_initialize(state->internal);
1387 if (demodError == STV0900_NO_ERROR) {
1388 error = STV0900_NO_ERROR;
1389 } else {
1390 if (demodError == STV0900_INVALID_HANDLE)
1391 error = STV0900_INVALID_HANDLE;
1392 else
1393 error = STV0900_I2C_ERROR;
1394
1395 return error;
1396 }
1397
1398 intp = state->internal;
1399
1400 intp->demod_mode = p_init->demod_mode;
1401 stv0900_st_dvbs2_single(intp, intp->demod_mode, STV0900_DEMOD_1);
1402 intp->chip_id = stv0900_read_reg(intp, R0900_MID);
1403 intp->rolloff = p_init->rolloff;
1404 intp->quartz = p_init->dmd_ref_clk;
1405
1406 stv0900_write_bits(intp, F0900_P1_ROLLOFF_CONTROL, p_init->rolloff);
1407 stv0900_write_bits(intp, F0900_P2_ROLLOFF_CONTROL, p_init->rolloff);
1408
1409 intp->ts_config = p_init->ts_config;
1410 if (intp->ts_config == NULL)
1411 stv0900_set_ts_parallel_serial(intp,
1412 p_init->path1_ts_clock,
1413 p_init->path2_ts_clock);
1414 else {
1415 for (i = 0; intp->ts_config[i].addr != 0xffff; i++)
1416 stv0900_write_reg(intp,
1417 intp->ts_config[i].addr,
1418 intp->ts_config[i].val);
1419
1420 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 1);
1421 stv0900_write_bits(intp, F0900_P2_RST_HWARE, 0);
1422 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 1);
1423 stv0900_write_bits(intp, F0900_P1_RST_HWARE, 0);
1424 }
1425
1426 intp->tuner_type[0] = p_init->tuner1_type;
1427 intp->tuner_type[1] = p_init->tuner2_type;
1428 /* tuner init */
1429 switch (p_init->tuner1_type) {
1430 case 3: /*FE_AUTO_STB6100:*/
1431 stv0900_write_reg(intp, R0900_P1_TNRCFG, 0x3c);
1432 stv0900_write_reg(intp, R0900_P1_TNRCFG2, 0x86);
1433 stv0900_write_reg(intp, R0900_P1_TNRCFG3, 0x18);
1434 stv0900_write_reg(intp, R0900_P1_TNRXTAL, 27); /* 27MHz */
1435 stv0900_write_reg(intp, R0900_P1_TNRSTEPS, 0x05);
1436 stv0900_write_reg(intp, R0900_P1_TNRGAIN, 0x17);
1437 stv0900_write_reg(intp, R0900_P1_TNRADJ, 0x1f);
1438 stv0900_write_reg(intp, R0900_P1_TNRCTL2, 0x0);
1439 stv0900_write_bits(intp, F0900_P1_TUN_TYPE, 3);
1440 break;
1441 /* case FE_SW_TUNER: */
1442 default:
1443 stv0900_write_bits(intp, F0900_P1_TUN_TYPE, 6);
1444 break;
1445 }
1446
1447 stv0900_write_bits(intp, F0900_P1_TUN_MADDRESS, p_init->tun1_maddress);
1448 switch (p_init->tuner1_adc) {
1449 case 1:
1450 stv0900_write_reg(intp, R0900_TSTTNR1, 0x26);
1451 break;
1452 default:
1453 break;
1454 }
1455
1456 stv0900_write_reg(intp, R0900_P1_TNRLD, 1); /* hw tuner */
1457
1458 /* tuner init */
1459 switch (p_init->tuner2_type) {
1460 case 3: /*FE_AUTO_STB6100:*/
1461 stv0900_write_reg(intp, R0900_P2_TNRCFG, 0x3c);
1462 stv0900_write_reg(intp, R0900_P2_TNRCFG2, 0x86);
1463 stv0900_write_reg(intp, R0900_P2_TNRCFG3, 0x18);
1464 stv0900_write_reg(intp, R0900_P2_TNRXTAL, 27); /* 27MHz */
1465 stv0900_write_reg(intp, R0900_P2_TNRSTEPS, 0x05);
1466 stv0900_write_reg(intp, R0900_P2_TNRGAIN, 0x17);
1467 stv0900_write_reg(intp, R0900_P2_TNRADJ, 0x1f);
1468 stv0900_write_reg(intp, R0900_P2_TNRCTL2, 0x0);
1469 stv0900_write_bits(intp, F0900_P2_TUN_TYPE, 3);
1470 break;
1471 /* case FE_SW_TUNER: */
1472 default:
1473 stv0900_write_bits(intp, F0900_P2_TUN_TYPE, 6);
1474 break;
1475 }
1476
1477 stv0900_write_bits(intp, F0900_P2_TUN_MADDRESS, p_init->tun2_maddress);
1478 switch (p_init->tuner2_adc) {
1479 case 1:
1480 stv0900_write_reg(intp, R0900_TSTTNR3, 0x26);
1481 break;
1482 default:
1483 break;
1484 }
1485
1486 stv0900_write_reg(intp, R0900_P2_TNRLD, 1); /* hw tuner */
1487
1488 stv0900_write_bits(intp, F0900_P1_TUN_IQSWAP, p_init->tun1_iq_inv);
1489 stv0900_write_bits(intp, F0900_P2_TUN_IQSWAP, p_init->tun2_iq_inv);
1490 stv0900_set_mclk(intp, 135000000);
1491 msleep(3);
1492
1493 switch (intp->clkmode) {
1494 case 0:
1495 case 2:
1496 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | intp->clkmode);
1497 break;
1498 default:
1499 selosci = 0x02 & stv0900_read_reg(intp, R0900_SYNTCTRL);
1500 stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | selosci);
1501 break;
1502 }
1503 msleep(3);
1504
1505 intp->mclk = stv0900_get_mclk_freq(intp, intp->quartz);
1506 if (intp->errs)
1507 error = STV0900_I2C_ERROR;
1508
1509 return error;
1510 }
1511
stv0900_status(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod)1512 static int stv0900_status(struct stv0900_internal *intp,
1513 enum fe_stv0900_demod_num demod)
1514 {
1515 enum fe_stv0900_search_state demod_state;
1516 int locked = FALSE;
1517 u8 tsbitrate0_val, tsbitrate1_val;
1518 s32 bitrate;
1519
1520 demod_state = stv0900_get_bits(intp, HEADER_MODE);
1521 switch (demod_state) {
1522 case STV0900_SEARCH:
1523 case STV0900_PLH_DETECTED:
1524 default:
1525 locked = FALSE;
1526 break;
1527 case STV0900_DVBS2_FOUND:
1528 locked = stv0900_get_bits(intp, LOCK_DEFINITIF) &&
1529 stv0900_get_bits(intp, PKTDELIN_LOCK) &&
1530 stv0900_get_bits(intp, TSFIFO_LINEOK);
1531 break;
1532 case STV0900_DVBS_FOUND:
1533 locked = stv0900_get_bits(intp, LOCK_DEFINITIF) &&
1534 stv0900_get_bits(intp, LOCKEDVIT) &&
1535 stv0900_get_bits(intp, TSFIFO_LINEOK);
1536 break;
1537 }
1538
1539 dprintk("%s: locked = %d\n", __func__, locked);
1540
1541 if (stvdebug) {
1542 /* Print TS bitrate */
1543 tsbitrate0_val = stv0900_read_reg(intp, TSBITRATE0);
1544 tsbitrate1_val = stv0900_read_reg(intp, TSBITRATE1);
1545 /* Formula Bit rate = Mclk * px_tsfifo_bitrate / 16384 */
1546 bitrate = (stv0900_get_mclk_freq(intp, intp->quartz)/1000000)
1547 * (tsbitrate1_val << 8 | tsbitrate0_val);
1548 bitrate /= 16384;
1549 dprintk("TS bitrate = %d Mbit/sec\n", bitrate);
1550 }
1551
1552 return locked;
1553 }
1554
stv0900_set_mis(struct stv0900_internal * intp,enum fe_stv0900_demod_num demod,int mis)1555 static int stv0900_set_mis(struct stv0900_internal *intp,
1556 enum fe_stv0900_demod_num demod, int mis)
1557 {
1558 enum fe_stv0900_error error = STV0900_NO_ERROR;
1559
1560 dprintk("%s\n", __func__);
1561
1562 if (mis < 0 || mis > 255) {
1563 dprintk("Disable MIS filtering\n");
1564 stv0900_write_bits(intp, FILTER_EN, 0);
1565 } else {
1566 dprintk("Enable MIS filtering - %d\n", mis);
1567 stv0900_write_bits(intp, FILTER_EN, 1);
1568 stv0900_write_reg(intp, ISIENTRY, mis);
1569 stv0900_write_reg(intp, ISIBITENA, 0xff);
1570 }
1571
1572 return error;
1573 }
1574
1575
stv0900_search(struct dvb_frontend * fe)1576 static enum dvbfe_search stv0900_search(struct dvb_frontend *fe)
1577 {
1578 struct stv0900_state *state = fe->demodulator_priv;
1579 struct stv0900_internal *intp = state->internal;
1580 enum fe_stv0900_demod_num demod = state->demod;
1581 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
1582
1583 struct stv0900_search_params p_search;
1584 struct stv0900_signal_info p_result = intp->result[demod];
1585
1586 enum fe_stv0900_error error = STV0900_NO_ERROR;
1587
1588 dprintk("%s: ", __func__);
1589
1590 if (!(INRANGE(100000, c->symbol_rate, 70000000)))
1591 return DVBFE_ALGO_SEARCH_FAILED;
1592
1593 if (state->config->set_ts_params)
1594 state->config->set_ts_params(fe, 0);
1595
1596 stv0900_set_mis(intp, demod, c->stream_id);
1597
1598 p_result.locked = FALSE;
1599 p_search.path = demod;
1600 p_search.frequency = c->frequency;
1601 p_search.symbol_rate = c->symbol_rate;
1602 p_search.search_range = 10000000;
1603 p_search.fec = STV0900_FEC_UNKNOWN;
1604 p_search.standard = STV0900_AUTO_SEARCH;
1605 p_search.iq_inversion = STV0900_IQ_AUTO;
1606 p_search.search_algo = STV0900_BLIND_SEARCH;
1607 /* 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_stop_ts(struct dvb_frontend * fe,int stop_ts)1678 static int stv0900_stop_ts(struct dvb_frontend *fe, int stop_ts)
1679 {
1680
1681 struct stv0900_state *state = fe->demodulator_priv;
1682 struct stv0900_internal *intp = state->internal;
1683 enum fe_stv0900_demod_num demod = state->demod;
1684
1685 if (stop_ts == TRUE)
1686 stv0900_write_bits(intp, RST_HWARE, 1);
1687 else
1688 stv0900_write_bits(intp, RST_HWARE, 0);
1689
1690 return 0;
1691 }
1692
stv0900_diseqc_init(struct dvb_frontend * fe)1693 static int stv0900_diseqc_init(struct dvb_frontend *fe)
1694 {
1695 struct stv0900_state *state = fe->demodulator_priv;
1696 struct stv0900_internal *intp = state->internal;
1697 enum fe_stv0900_demod_num demod = state->demod;
1698
1699 stv0900_write_bits(intp, DISTX_MODE, state->config->diseqc_mode);
1700 stv0900_write_bits(intp, DISEQC_RESET, 1);
1701 stv0900_write_bits(intp, DISEQC_RESET, 0);
1702
1703 return 0;
1704 }
1705
stv0900_init(struct dvb_frontend * fe)1706 static int stv0900_init(struct dvb_frontend *fe)
1707 {
1708 dprintk("%s\n", __func__);
1709
1710 stv0900_stop_ts(fe, 1);
1711 stv0900_diseqc_init(fe);
1712
1713 return 0;
1714 }
1715
stv0900_diseqc_send(struct stv0900_internal * intp,u8 * data,u32 NbData,enum fe_stv0900_demod_num demod)1716 static int stv0900_diseqc_send(struct stv0900_internal *intp , u8 *data,
1717 u32 NbData, enum fe_stv0900_demod_num demod)
1718 {
1719 s32 i = 0;
1720
1721 stv0900_write_bits(intp, DIS_PRECHARGE, 1);
1722 while (i < NbData) {
1723 while (stv0900_get_bits(intp, FIFO_FULL))
1724 ;/* checkpatch complains */
1725 stv0900_write_reg(intp, DISTXDATA, data[i]);
1726 i++;
1727 }
1728
1729 stv0900_write_bits(intp, DIS_PRECHARGE, 0);
1730 i = 0;
1731 while ((stv0900_get_bits(intp, TX_IDLE) != 1) && (i < 10)) {
1732 msleep(10);
1733 i++;
1734 }
1735
1736 return 0;
1737 }
1738
stv0900_send_master_cmd(struct dvb_frontend * fe,struct dvb_diseqc_master_cmd * cmd)1739 static int stv0900_send_master_cmd(struct dvb_frontend *fe,
1740 struct dvb_diseqc_master_cmd *cmd)
1741 {
1742 struct stv0900_state *state = fe->demodulator_priv;
1743
1744 return stv0900_diseqc_send(state->internal,
1745 cmd->msg,
1746 cmd->msg_len,
1747 state->demod);
1748 }
1749
stv0900_send_burst(struct dvb_frontend * fe,fe_sec_mini_cmd_t burst)1750 static int stv0900_send_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
1751 {
1752 struct stv0900_state *state = fe->demodulator_priv;
1753 struct stv0900_internal *intp = state->internal;
1754 enum fe_stv0900_demod_num demod = state->demod;
1755 u8 data;
1756
1757
1758 switch (burst) {
1759 case SEC_MINI_A:
1760 stv0900_write_bits(intp, DISTX_MODE, 3);/* Unmodulated */
1761 data = 0x00;
1762 stv0900_diseqc_send(intp, &data, 1, state->demod);
1763 break;
1764 case SEC_MINI_B:
1765 stv0900_write_bits(intp, DISTX_MODE, 2);/* Modulated */
1766 data = 0xff;
1767 stv0900_diseqc_send(intp, &data, 1, state->demod);
1768 break;
1769 }
1770
1771 return 0;
1772 }
1773
stv0900_recv_slave_reply(struct dvb_frontend * fe,struct dvb_diseqc_slave_reply * reply)1774 static int stv0900_recv_slave_reply(struct dvb_frontend *fe,
1775 struct dvb_diseqc_slave_reply *reply)
1776 {
1777 struct stv0900_state *state = fe->demodulator_priv;
1778 struct stv0900_internal *intp = state->internal;
1779 enum fe_stv0900_demod_num demod = state->demod;
1780 s32 i = 0;
1781
1782 reply->msg_len = 0;
1783
1784 while ((stv0900_get_bits(intp, RX_END) != 1) && (i < 10)) {
1785 msleep(10);
1786 i++;
1787 }
1788
1789 if (stv0900_get_bits(intp, RX_END)) {
1790 reply->msg_len = stv0900_get_bits(intp, FIFO_BYTENBR);
1791
1792 for (i = 0; i < reply->msg_len; i++)
1793 reply->msg[i] = stv0900_read_reg(intp, DISRXDATA);
1794 }
1795
1796 return 0;
1797 }
1798
stv0900_set_tone(struct dvb_frontend * fe,fe_sec_tone_mode_t toneoff)1799 static int stv0900_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t toneoff)
1800 {
1801 struct stv0900_state *state = fe->demodulator_priv;
1802 struct stv0900_internal *intp = state->internal;
1803 enum fe_stv0900_demod_num demod = state->demod;
1804
1805 dprintk("%s: %s\n", __func__, ((toneoff == 0) ? "On" : "Off"));
1806
1807 switch (toneoff) {
1808 case SEC_TONE_ON:
1809 /*Set the DiseqC mode to 22Khz _continues_ tone*/
1810 stv0900_write_bits(intp, DISTX_MODE, 0);
1811 stv0900_write_bits(intp, DISEQC_RESET, 1);
1812 /*release DiseqC reset to enable the 22KHz tone*/
1813 stv0900_write_bits(intp, DISEQC_RESET, 0);
1814 break;
1815 case SEC_TONE_OFF:
1816 /*return diseqc mode to config->diseqc_mode.
1817 Usually it's without _continues_ tone */
1818 stv0900_write_bits(intp, DISTX_MODE,
1819 state->config->diseqc_mode);
1820 /*maintain the DiseqC reset to disable the 22KHz tone*/
1821 stv0900_write_bits(intp, DISEQC_RESET, 1);
1822 stv0900_write_bits(intp, DISEQC_RESET, 0);
1823 break;
1824 default:
1825 return -EINVAL;
1826 }
1827
1828 return 0;
1829 }
1830
stv0900_release(struct dvb_frontend * fe)1831 static void stv0900_release(struct dvb_frontend *fe)
1832 {
1833 struct stv0900_state *state = fe->demodulator_priv;
1834
1835 dprintk("%s\n", __func__);
1836
1837 if (state->config->set_lock_led)
1838 state->config->set_lock_led(fe, 0);
1839
1840 if ((--(state->internal->dmds_used)) <= 0) {
1841
1842 dprintk("%s: Actually removing\n", __func__);
1843
1844 remove_inode(state->internal);
1845 kfree(state->internal);
1846 }
1847
1848 kfree(state);
1849 }
1850
stv0900_sleep(struct dvb_frontend * fe)1851 static int stv0900_sleep(struct dvb_frontend *fe)
1852 {
1853 struct stv0900_state *state = fe->demodulator_priv;
1854
1855 dprintk("%s\n", __func__);
1856
1857 if (state->config->set_lock_led)
1858 state->config->set_lock_led(fe, 0);
1859
1860 return 0;
1861 }
1862
stv0900_get_frontend(struct dvb_frontend * fe)1863 static int stv0900_get_frontend(struct dvb_frontend *fe)
1864 {
1865 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1866 struct stv0900_state *state = fe->demodulator_priv;
1867 struct stv0900_internal *intp = state->internal;
1868 enum fe_stv0900_demod_num demod = state->demod;
1869 struct stv0900_signal_info p_result = intp->result[demod];
1870
1871 p->frequency = p_result.locked ? p_result.frequency : 0;
1872 p->symbol_rate = p_result.locked ? p_result.symbol_rate : 0;
1873 return 0;
1874 }
1875
1876 static struct dvb_frontend_ops stv0900_ops = {
1877 .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
1878 .info = {
1879 .name = "STV0900 frontend",
1880 .frequency_min = 950000,
1881 .frequency_max = 2150000,
1882 .frequency_stepsize = 125,
1883 .frequency_tolerance = 0,
1884 .symbol_rate_min = 1000000,
1885 .symbol_rate_max = 45000000,
1886 .symbol_rate_tolerance = 500,
1887 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
1888 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 |
1889 FE_CAN_FEC_7_8 | FE_CAN_QPSK |
1890 FE_CAN_2G_MODULATION |
1891 FE_CAN_FEC_AUTO
1892 },
1893 .release = stv0900_release,
1894 .init = stv0900_init,
1895 .get_frontend = stv0900_get_frontend,
1896 .sleep = stv0900_sleep,
1897 .get_frontend_algo = stv0900_frontend_algo,
1898 .i2c_gate_ctrl = stv0900_i2c_gate_ctrl,
1899 .diseqc_send_master_cmd = stv0900_send_master_cmd,
1900 .diseqc_send_burst = stv0900_send_burst,
1901 .diseqc_recv_slave_reply = stv0900_recv_slave_reply,
1902 .set_tone = stv0900_set_tone,
1903 .search = stv0900_search,
1904 .read_status = stv0900_read_status,
1905 .read_ber = stv0900_read_ber,
1906 .read_signal_strength = stv0900_read_signal_strength,
1907 .read_snr = stv0900_read_snr,
1908 .read_ucblocks = stv0900_read_ucblocks,
1909 };
1910
stv0900_attach(const struct stv0900_config * config,struct i2c_adapter * i2c,int demod)1911 struct dvb_frontend *stv0900_attach(const struct stv0900_config *config,
1912 struct i2c_adapter *i2c,
1913 int demod)
1914 {
1915 struct stv0900_state *state = NULL;
1916 struct stv0900_init_params init_params;
1917 enum fe_stv0900_error err_stv0900;
1918
1919 state = kzalloc(sizeof(struct stv0900_state), GFP_KERNEL);
1920 if (state == NULL)
1921 goto error;
1922
1923 state->demod = demod;
1924 state->config = config;
1925 state->i2c_adap = i2c;
1926
1927 memcpy(&state->frontend.ops, &stv0900_ops,
1928 sizeof(struct dvb_frontend_ops));
1929 state->frontend.demodulator_priv = state;
1930
1931 switch (demod) {
1932 case 0:
1933 case 1:
1934 init_params.dmd_ref_clk = config->xtal;
1935 init_params.demod_mode = config->demod_mode;
1936 init_params.rolloff = STV0900_35;
1937 init_params.path1_ts_clock = config->path1_mode;
1938 init_params.tun1_maddress = config->tun1_maddress;
1939 init_params.tun1_iq_inv = STV0900_IQ_NORMAL;
1940 init_params.tuner1_adc = config->tun1_adc;
1941 init_params.tuner1_type = config->tun1_type;
1942 init_params.path2_ts_clock = config->path2_mode;
1943 init_params.ts_config = config->ts_config_regs;
1944 init_params.tun2_maddress = config->tun2_maddress;
1945 init_params.tuner2_adc = config->tun2_adc;
1946 init_params.tuner2_type = config->tun2_type;
1947 init_params.tun2_iq_inv = STV0900_IQ_SWAPPED;
1948
1949 err_stv0900 = stv0900_init_internal(&state->frontend,
1950 &init_params);
1951
1952 if (err_stv0900)
1953 goto error;
1954
1955 if (state->internal->chip_id >= 0x30)
1956 state->frontend.ops.info.caps |= FE_CAN_MULTISTREAM;
1957
1958 break;
1959 default:
1960 goto error;
1961 break;
1962 }
1963
1964 dprintk("%s: Attaching STV0900 demodulator(%d) \n", __func__, demod);
1965 return &state->frontend;
1966
1967 error:
1968 dprintk("%s: Failed to attach STV0900 demodulator(%d) \n",
1969 __func__, demod);
1970 kfree(state);
1971 return NULL;
1972 }
1973 EXPORT_SYMBOL(stv0900_attach);
1974
1975 MODULE_PARM_DESC(debug, "Set debug");
1976
1977 MODULE_AUTHOR("Igor M. Liplianin");
1978 MODULE_DESCRIPTION("ST STV0900 frontend");
1979 MODULE_LICENSE("GPL");
1980