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tda10071.c
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1 /*
2  * NXP TDA10071 + Conexant CX24118A DVB-S/S2 demodulator + tuner driver
3  *
4  * Copyright (C) 2011 Antti Palosaari <[email protected]>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with this program; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19  */
20 
21 #include "tda10071_priv.h"
22 
23 static struct dvb_frontend_ops tda10071_ops;
24 
25 /* write multiple registers */
26 static int tda10071_wr_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
27  int len)
28 {
29  int ret;
30  u8 buf[len+1];
31  struct i2c_msg msg[1] = {
32  {
33  .addr = priv->cfg.i2c_address,
34  .flags = 0,
35  .len = sizeof(buf),
36  .buf = buf,
37  }
38  };
39 
40  buf[0] = reg;
41  memcpy(&buf[1], val, len);
42 
43  ret = i2c_transfer(priv->i2c, msg, 1);
44  if (ret == 1) {
45  ret = 0;
46  } else {
47  dev_warn(&priv->i2c->dev, "%s: i2c wr failed=%d reg=%02x " \
48  "len=%d\n", KBUILD_MODNAME, ret, reg, len);
49  ret = -EREMOTEIO;
50  }
51  return ret;
52 }
53 
54 /* read multiple registers */
55 static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
56  int len)
57 {
58  int ret;
59  u8 buf[len];
60  struct i2c_msg msg[2] = {
61  {
62  .addr = priv->cfg.i2c_address,
63  .flags = 0,
64  .len = 1,
65  .buf = &reg,
66  }, {
67  .addr = priv->cfg.i2c_address,
68  .flags = I2C_M_RD,
69  .len = sizeof(buf),
70  .buf = buf,
71  }
72  };
73 
74  ret = i2c_transfer(priv->i2c, msg, 2);
75  if (ret == 2) {
76  memcpy(val, buf, len);
77  ret = 0;
78  } else {
79  dev_warn(&priv->i2c->dev, "%s: i2c rd failed=%d reg=%02x " \
80  "len=%d\n", KBUILD_MODNAME, ret, reg, len);
81  ret = -EREMOTEIO;
82  }
83  return ret;
84 }
85 
86 /* write single register */
87 static int tda10071_wr_reg(struct tda10071_priv *priv, u8 reg, u8 val)
88 {
89  return tda10071_wr_regs(priv, reg, &val, 1);
90 }
91 
92 /* read single register */
93 static int tda10071_rd_reg(struct tda10071_priv *priv, u8 reg, u8 *val)
94 {
95  return tda10071_rd_regs(priv, reg, val, 1);
96 }
97 
98 /* write single register with mask */
99 int tda10071_wr_reg_mask(struct tda10071_priv *priv, u8 reg, u8 val, u8 mask)
100 {
101  int ret;
102  u8 tmp;
103 
104  /* no need for read if whole reg is written */
105  if (mask != 0xff) {
106  ret = tda10071_rd_regs(priv, reg, &tmp, 1);
107  if (ret)
108  return ret;
109 
110  val &= mask;
111  tmp &= ~mask;
112  val |= tmp;
113  }
114 
115  return tda10071_wr_regs(priv, reg, &val, 1);
116 }
117 
118 /* read single register with mask */
119 int tda10071_rd_reg_mask(struct tda10071_priv *priv, u8 reg, u8 *val, u8 mask)
120 {
121  int ret, i;
122  u8 tmp;
123 
124  ret = tda10071_rd_regs(priv, reg, &tmp, 1);
125  if (ret)
126  return ret;
127 
128  tmp &= mask;
129 
130  /* find position of the first bit */
131  for (i = 0; i < 8; i++) {
132  if ((mask >> i) & 0x01)
133  break;
134  }
135  *val = tmp >> i;
136 
137  return 0;
138 }
139 
140 /* execute firmware command */
141 static int tda10071_cmd_execute(struct tda10071_priv *priv,
142  struct tda10071_cmd *cmd)
143 {
144  int ret, i;
145  u8 tmp;
146 
147  if (!priv->warm) {
148  ret = -EFAULT;
149  goto error;
150  }
151 
152  /* write cmd and args for firmware */
153  ret = tda10071_wr_regs(priv, 0x00, cmd->args, cmd->len);
154  if (ret)
155  goto error;
156 
157  /* start cmd execution */
158  ret = tda10071_wr_reg(priv, 0x1f, 1);
159  if (ret)
160  goto error;
161 
162  /* wait cmd execution terminate */
163  for (i = 1000, tmp = 1; i && tmp; i--) {
164  ret = tda10071_rd_reg(priv, 0x1f, &tmp);
165  if (ret)
166  goto error;
167 
168  usleep_range(200, 5000);
169  }
170 
171  dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
172 
173  if (i == 0) {
174  ret = -ETIMEDOUT;
175  goto error;
176  }
177 
178  return ret;
179 error:
180  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
181  return ret;
182 }
183 
184 static int tda10071_set_tone(struct dvb_frontend *fe,
185  fe_sec_tone_mode_t fe_sec_tone_mode)
186 {
187  struct tda10071_priv *priv = fe->demodulator_priv;
188  struct tda10071_cmd cmd;
189  int ret;
190  u8 tone;
191 
192  if (!priv->warm) {
193  ret = -EFAULT;
194  goto error;
195  }
196 
197  dev_dbg(&priv->i2c->dev, "%s: tone_mode=%d\n", __func__,
198  fe_sec_tone_mode);
199 
200  switch (fe_sec_tone_mode) {
201  case SEC_TONE_ON:
202  tone = 1;
203  break;
204  case SEC_TONE_OFF:
205  tone = 0;
206  break;
207  default:
208  dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_tone_mode\n",
209  __func__);
210  ret = -EINVAL;
211  goto error;
212  }
213 
214  cmd.args[0] = CMD_LNB_PCB_CONFIG;
215  cmd.args[1] = 0;
216  cmd.args[2] = 0x00;
217  cmd.args[3] = 0x00;
218  cmd.args[4] = tone;
219  cmd.len = 5;
220  ret = tda10071_cmd_execute(priv, &cmd);
221  if (ret)
222  goto error;
223 
224  return ret;
225 error:
226  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
227  return ret;
228 }
229 
230 static int tda10071_set_voltage(struct dvb_frontend *fe,
231  fe_sec_voltage_t fe_sec_voltage)
232 {
233  struct tda10071_priv *priv = fe->demodulator_priv;
234  struct tda10071_cmd cmd;
235  int ret;
236  u8 voltage;
237 
238  if (!priv->warm) {
239  ret = -EFAULT;
240  goto error;
241  }
242 
243  dev_dbg(&priv->i2c->dev, "%s: voltage=%d\n", __func__, fe_sec_voltage);
244 
245  switch (fe_sec_voltage) {
246  case SEC_VOLTAGE_13:
247  voltage = 0;
248  break;
249  case SEC_VOLTAGE_18:
250  voltage = 1;
251  break;
252  case SEC_VOLTAGE_OFF:
253  voltage = 0;
254  break;
255  default:
256  dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_voltage\n",
257  __func__);
258  ret = -EINVAL;
259  goto error;
260  }
261 
262  cmd.args[0] = CMD_LNB_SET_DC_LEVEL;
263  cmd.args[1] = 0;
264  cmd.args[2] = voltage;
265  cmd.len = 3;
266  ret = tda10071_cmd_execute(priv, &cmd);
267  if (ret)
268  goto error;
269 
270  return ret;
271 error:
272  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
273  return ret;
274 }
275 
276 static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe,
277  struct dvb_diseqc_master_cmd *diseqc_cmd)
278 {
279  struct tda10071_priv *priv = fe->demodulator_priv;
280  struct tda10071_cmd cmd;
281  int ret, i;
282  u8 tmp;
283 
284  if (!priv->warm) {
285  ret = -EFAULT;
286  goto error;
287  }
288 
289  dev_dbg(&priv->i2c->dev, "%s: msg_len=%d\n", __func__,
290  diseqc_cmd->msg_len);
291 
292  if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) {
293  ret = -EINVAL;
294  goto error;
295  }
296 
297  /* wait LNB TX */
298  for (i = 500, tmp = 0; i && !tmp; i--) {
299  ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
300  if (ret)
301  goto error;
302 
303  usleep_range(10000, 20000);
304  }
305 
306  dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
307 
308  if (i == 0) {
309  ret = -ETIMEDOUT;
310  goto error;
311  }
312 
313  ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
314  if (ret)
315  goto error;
316 
317  cmd.args[0] = CMD_LNB_SEND_DISEQC;
318  cmd.args[1] = 0;
319  cmd.args[2] = 0;
320  cmd.args[3] = 0;
321  cmd.args[4] = 2;
322  cmd.args[5] = 0;
323  cmd.args[6] = diseqc_cmd->msg_len;
324  memcpy(&cmd.args[7], diseqc_cmd->msg, diseqc_cmd->msg_len);
325  cmd.len = 7 + diseqc_cmd->msg_len;
326  ret = tda10071_cmd_execute(priv, &cmd);
327  if (ret)
328  goto error;
329 
330  return ret;
331 error:
332  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
333  return ret;
334 }
335 
336 static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe,
337  struct dvb_diseqc_slave_reply *reply)
338 {
339  struct tda10071_priv *priv = fe->demodulator_priv;
340  struct tda10071_cmd cmd;
341  int ret, i;
342  u8 tmp;
343 
344  if (!priv->warm) {
345  ret = -EFAULT;
346  goto error;
347  }
348 
349  dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
350 
351  /* wait LNB RX */
352  for (i = 500, tmp = 0; i && !tmp; i--) {
353  ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x02);
354  if (ret)
355  goto error;
356 
357  usleep_range(10000, 20000);
358  }
359 
360  dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
361 
362  if (i == 0) {
363  ret = -ETIMEDOUT;
364  goto error;
365  }
366 
367  /* reply len */
368  ret = tda10071_rd_reg(priv, 0x46, &tmp);
369  if (ret)
370  goto error;
371 
372  reply->msg_len = tmp & 0x1f; /* [4:0] */
373  if (reply->msg_len > sizeof(reply->msg))
374  reply->msg_len = sizeof(reply->msg); /* truncate API max */
375 
376  /* read reply */
377  cmd.args[0] = CMD_LNB_UPDATE_REPLY;
378  cmd.args[1] = 0;
379  cmd.len = 2;
380  ret = tda10071_cmd_execute(priv, &cmd);
381  if (ret)
382  goto error;
383 
384  ret = tda10071_rd_regs(priv, cmd.len, reply->msg, reply->msg_len);
385  if (ret)
386  goto error;
387 
388  return ret;
389 error:
390  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
391  return ret;
392 }
393 
394 static int tda10071_diseqc_send_burst(struct dvb_frontend *fe,
395  fe_sec_mini_cmd_t fe_sec_mini_cmd)
396 {
397  struct tda10071_priv *priv = fe->demodulator_priv;
398  struct tda10071_cmd cmd;
399  int ret, i;
400  u8 tmp, burst;
401 
402  if (!priv->warm) {
403  ret = -EFAULT;
404  goto error;
405  }
406 
407  dev_dbg(&priv->i2c->dev, "%s: fe_sec_mini_cmd=%d\n", __func__,
408  fe_sec_mini_cmd);
409 
410  switch (fe_sec_mini_cmd) {
411  case SEC_MINI_A:
412  burst = 0;
413  break;
414  case SEC_MINI_B:
415  burst = 1;
416  break;
417  default:
418  dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_mini_cmd\n",
419  __func__);
420  ret = -EINVAL;
421  goto error;
422  }
423 
424  /* wait LNB TX */
425  for (i = 500, tmp = 0; i && !tmp; i--) {
426  ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
427  if (ret)
428  goto error;
429 
430  usleep_range(10000, 20000);
431  }
432 
433  dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
434 
435  if (i == 0) {
436  ret = -ETIMEDOUT;
437  goto error;
438  }
439 
440  ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
441  if (ret)
442  goto error;
443 
444  cmd.args[0] = CMD_LNB_SEND_TONEBURST;
445  cmd.args[1] = 0;
446  cmd.args[2] = burst;
447  cmd.len = 3;
448  ret = tda10071_cmd_execute(priv, &cmd);
449  if (ret)
450  goto error;
451 
452  return ret;
453 error:
454  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
455  return ret;
456 }
457 
458 static int tda10071_read_status(struct dvb_frontend *fe, fe_status_t *status)
459 {
460  struct tda10071_priv *priv = fe->demodulator_priv;
461  int ret;
462  u8 tmp;
463 
464  *status = 0;
465 
466  if (!priv->warm) {
467  ret = 0;
468  goto error;
469  }
470 
471  ret = tda10071_rd_reg(priv, 0x39, &tmp);
472  if (ret)
473  goto error;
474 
475  if (tmp & 0x01) /* tuner PLL */
476  *status |= FE_HAS_SIGNAL;
477  if (tmp & 0x02) /* demod PLL */
478  *status |= FE_HAS_CARRIER;
479  if (tmp & 0x04) /* viterbi or LDPC*/
480  *status |= FE_HAS_VITERBI;
481  if (tmp & 0x08) /* RS or BCH */
482  *status |= FE_HAS_SYNC | FE_HAS_LOCK;
483 
484  priv->fe_status = *status;
485 
486  return ret;
487 error:
488  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
489  return ret;
490 }
491 
492 static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr)
493 {
494  struct tda10071_priv *priv = fe->demodulator_priv;
495  int ret;
496  u8 buf[2];
497 
498  if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
499  *snr = 0;
500  ret = 0;
501  goto error;
502  }
503 
504  ret = tda10071_rd_regs(priv, 0x3a, buf, 2);
505  if (ret)
506  goto error;
507 
508  /* Es/No dBx10 */
509  *snr = buf[0] << 8 | buf[1];
510 
511  return ret;
512 error:
513  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
514  return ret;
515 }
516 
517 static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
518 {
519  struct tda10071_priv *priv = fe->demodulator_priv;
520  struct tda10071_cmd cmd;
521  int ret;
522  u8 tmp;
523 
524  if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
525  *strength = 0;
526  ret = 0;
527  goto error;
528  }
529 
530  cmd.args[0] = CMD_GET_AGCACC;
531  cmd.args[1] = 0;
532  cmd.len = 2;
533  ret = tda10071_cmd_execute(priv, &cmd);
534  if (ret)
535  goto error;
536 
537  /* input power estimate dBm */
538  ret = tda10071_rd_reg(priv, 0x50, &tmp);
539  if (ret)
540  goto error;
541 
542  if (tmp < 181)
543  tmp = 181; /* -75 dBm */
544  else if (tmp > 236)
545  tmp = 236; /* -20 dBm */
546 
547  /* scale value to 0x0000-0xffff */
548  *strength = (tmp-181) * 0xffff / (236-181);
549 
550  return ret;
551 error:
552  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
553  return ret;
554 }
555 
556 static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber)
557 {
558  struct tda10071_priv *priv = fe->demodulator_priv;
559  struct tda10071_cmd cmd;
560  int ret, i, len;
561  u8 tmp, reg, buf[8];
562 
563  if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
564  *ber = priv->ber = 0;
565  ret = 0;
566  goto error;
567  }
568 
569  switch (priv->delivery_system) {
570  case SYS_DVBS:
571  reg = 0x4c;
572  len = 8;
573  i = 1;
574  break;
575  case SYS_DVBS2:
576  reg = 0x4d;
577  len = 4;
578  i = 0;
579  break;
580  default:
581  *ber = priv->ber = 0;
582  return 0;
583  }
584 
585  ret = tda10071_rd_reg(priv, reg, &tmp);
586  if (ret)
587  goto error;
588 
589  if (priv->meas_count[i] == tmp) {
590  dev_dbg(&priv->i2c->dev, "%s: meas not ready=%02x\n", __func__,
591  tmp);
592  *ber = priv->ber;
593  return 0;
594  } else {
595  priv->meas_count[i] = tmp;
596  }
597 
598  cmd.args[0] = CMD_BER_UPDATE_COUNTERS;
599  cmd.args[1] = 0;
600  cmd.args[2] = i;
601  cmd.len = 3;
602  ret = tda10071_cmd_execute(priv, &cmd);
603  if (ret)
604  goto error;
605 
606  ret = tda10071_rd_regs(priv, cmd.len, buf, len);
607  if (ret)
608  goto error;
609 
610  if (priv->delivery_system == SYS_DVBS) {
611  *ber = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
612  priv->ucb += (buf[4] << 8) | buf[5];
613  } else {
614  *ber = (buf[0] << 8) | buf[1];
615  }
616  priv->ber = *ber;
617 
618  return ret;
619 error:
620  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
621  return ret;
622 }
623 
624 static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
625 {
626  struct tda10071_priv *priv = fe->demodulator_priv;
627  int ret = 0;
628 
629  if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
630  *ucblocks = 0;
631  goto error;
632  }
633 
634  /* UCB is updated when BER is read. Assume BER is read anyway. */
635 
636  *ucblocks = priv->ucb;
637 
638  return ret;
639 error:
640  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
641  return ret;
642 }
643 
644 static int tda10071_set_frontend(struct dvb_frontend *fe)
645 {
646  struct tda10071_priv *priv = fe->demodulator_priv;
647  struct tda10071_cmd cmd;
648  struct dtv_frontend_properties *c = &fe->dtv_property_cache;
649  int ret, i;
650  u8 mode, rolloff, pilot, inversion, div;
651 
652  dev_dbg(&priv->i2c->dev, "%s: delivery_system=%d modulation=%d " \
653  "frequency=%d symbol_rate=%d inversion=%d pilot=%d " \
654  "rolloff=%d\n", __func__, c->delivery_system, c->modulation,
655  c->frequency, c->symbol_rate, c->inversion, c->pilot,
656  c->rolloff);
657 
658  priv->delivery_system = SYS_UNDEFINED;
659 
660  if (!priv->warm) {
661  ret = -EFAULT;
662  goto error;
663  }
664 
665  switch (c->inversion) {
666  case INVERSION_OFF:
667  inversion = 1;
668  break;
669  case INVERSION_ON:
670  inversion = 0;
671  break;
672  case INVERSION_AUTO:
673  /* 2 = auto; try first on then off
674  * 3 = auto; try first off then on */
675  inversion = 3;
676  break;
677  default:
678  dev_dbg(&priv->i2c->dev, "%s: invalid inversion\n", __func__);
679  ret = -EINVAL;
680  goto error;
681  }
682 
683  switch (c->delivery_system) {
684  case SYS_DVBS:
685  rolloff = 0;
686  pilot = 2;
687  break;
688  case SYS_DVBS2:
689  switch (c->rolloff) {
690  case ROLLOFF_20:
691  rolloff = 2;
692  break;
693  case ROLLOFF_25:
694  rolloff = 1;
695  break;
696  case ROLLOFF_35:
697  rolloff = 0;
698  break;
699  case ROLLOFF_AUTO:
700  default:
701  dev_dbg(&priv->i2c->dev, "%s: invalid rolloff\n",
702  __func__);
703  ret = -EINVAL;
704  goto error;
705  }
706 
707  switch (c->pilot) {
708  case PILOT_OFF:
709  pilot = 0;
710  break;
711  case PILOT_ON:
712  pilot = 1;
713  break;
714  case PILOT_AUTO:
715  pilot = 2;
716  break;
717  default:
718  dev_dbg(&priv->i2c->dev, "%s: invalid pilot\n",
719  __func__);
720  ret = -EINVAL;
721  goto error;
722  }
723  break;
724  default:
725  dev_dbg(&priv->i2c->dev, "%s: invalid delivery_system\n",
726  __func__);
727  ret = -EINVAL;
728  goto error;
729  }
730 
731  for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
732  if (c->delivery_system == TDA10071_MODCOD[i].delivery_system &&
733  c->modulation == TDA10071_MODCOD[i].modulation &&
734  c->fec_inner == TDA10071_MODCOD[i].fec) {
735  mode = TDA10071_MODCOD[i].val;
736  dev_dbg(&priv->i2c->dev, "%s: mode found=%02x\n",
737  __func__, mode);
738  break;
739  }
740  }
741 
742  if (mode == 0xff) {
743  dev_dbg(&priv->i2c->dev, "%s: invalid parameter combination\n",
744  __func__);
745  ret = -EINVAL;
746  goto error;
747  }
748 
749  if (c->symbol_rate <= 5000000)
750  div = 14;
751  else
752  div = 4;
753 
754  ret = tda10071_wr_reg(priv, 0x81, div);
755  if (ret)
756  goto error;
757 
758  ret = tda10071_wr_reg(priv, 0xe3, div);
759  if (ret)
760  goto error;
761 
762  cmd.args[0] = CMD_CHANGE_CHANNEL;
763  cmd.args[1] = 0;
764  cmd.args[2] = mode;
765  cmd.args[3] = (c->frequency >> 16) & 0xff;
766  cmd.args[4] = (c->frequency >> 8) & 0xff;
767  cmd.args[5] = (c->frequency >> 0) & 0xff;
768  cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff;
769  cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff;
770  cmd.args[8] = (tda10071_ops.info.frequency_tolerance >> 8) & 0xff;
771  cmd.args[9] = (tda10071_ops.info.frequency_tolerance >> 0) & 0xff;
772  cmd.args[10] = rolloff;
773  cmd.args[11] = inversion;
774  cmd.args[12] = pilot;
775  cmd.args[13] = 0x00;
776  cmd.args[14] = 0x00;
777  cmd.len = 15;
778  ret = tda10071_cmd_execute(priv, &cmd);
779  if (ret)
780  goto error;
781 
782  priv->delivery_system = c->delivery_system;
783 
784  return ret;
785 error:
786  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
787  return ret;
788 }
789 
790 static int tda10071_get_frontend(struct dvb_frontend *fe)
791 {
792  struct tda10071_priv *priv = fe->demodulator_priv;
793  struct dtv_frontend_properties *c = &fe->dtv_property_cache;
794  int ret, i;
795  u8 buf[5], tmp;
796 
797  if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
798  ret = -EFAULT;
799  goto error;
800  }
801 
802  ret = tda10071_rd_regs(priv, 0x30, buf, 5);
803  if (ret)
804  goto error;
805 
806  tmp = buf[0] & 0x3f;
807  for (i = 0; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
808  if (tmp == TDA10071_MODCOD[i].val) {
809  c->modulation = TDA10071_MODCOD[i].modulation;
810  c->fec_inner = TDA10071_MODCOD[i].fec;
811  c->delivery_system = TDA10071_MODCOD[i].delivery_system;
812  }
813  }
814 
815  switch ((buf[1] >> 0) & 0x01) {
816  case 0:
817  c->inversion = INVERSION_OFF;
818  break;
819  case 1:
820  c->inversion = INVERSION_ON;
821  break;
822  }
823 
824  switch ((buf[1] >> 7) & 0x01) {
825  case 0:
826  c->pilot = PILOT_OFF;
827  break;
828  case 1:
829  c->pilot = PILOT_ON;
830  break;
831  }
832 
833  c->frequency = (buf[2] << 16) | (buf[3] << 8) | (buf[4] << 0);
834 
835  ret = tda10071_rd_regs(priv, 0x52, buf, 3);
836  if (ret)
837  goto error;
838 
839  c->symbol_rate = (buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0);
840 
841  return ret;
842 error:
843  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
844  return ret;
845 }
846 
847 static int tda10071_init(struct dvb_frontend *fe)
848 {
849  struct tda10071_priv *priv = fe->demodulator_priv;
850  struct tda10071_cmd cmd;
851  int ret, i, len, remaining, fw_size;
852  const struct firmware *fw;
853  u8 *fw_file = TDA10071_FIRMWARE;
854  u8 tmp, buf[4];
855  struct tda10071_reg_val_mask tab[] = {
856  { 0xcd, 0x00, 0x07 },
857  { 0x80, 0x00, 0x02 },
858  { 0xcd, 0x00, 0xc0 },
859  { 0xce, 0x00, 0x1b },
860  { 0x9d, 0x00, 0x01 },
861  { 0x9d, 0x00, 0x02 },
862  { 0x9e, 0x00, 0x01 },
863  { 0x87, 0x00, 0x80 },
864  { 0xce, 0x00, 0x08 },
865  { 0xce, 0x00, 0x10 },
866  };
867  struct tda10071_reg_val_mask tab2[] = {
868  { 0xf1, 0x70, 0xff },
869  { 0x88, priv->cfg.pll_multiplier, 0x3f },
870  { 0x89, 0x00, 0x10 },
871  { 0x89, 0x10, 0x10 },
872  { 0xc0, 0x01, 0x01 },
873  { 0xc0, 0x00, 0x01 },
874  { 0xe0, 0xff, 0xff },
875  { 0xe0, 0x00, 0xff },
876  { 0x96, 0x1e, 0x7e },
877  { 0x8b, 0x08, 0x08 },
878  { 0x8b, 0x00, 0x08 },
879  { 0x8f, 0x1a, 0x7e },
880  { 0x8c, 0x68, 0xff },
881  { 0x8d, 0x08, 0xff },
882  { 0x8e, 0x4c, 0xff },
883  { 0x8f, 0x01, 0x01 },
884  { 0x8b, 0x04, 0x04 },
885  { 0x8b, 0x00, 0x04 },
886  { 0x87, 0x05, 0x07 },
887  { 0x80, 0x00, 0x20 },
888  { 0xc8, 0x01, 0xff },
889  { 0xb4, 0x47, 0xff },
890  { 0xb5, 0x9c, 0xff },
891  { 0xb6, 0x7d, 0xff },
892  { 0xba, 0x00, 0x03 },
893  { 0xb7, 0x47, 0xff },
894  { 0xb8, 0x9c, 0xff },
895  { 0xb9, 0x7d, 0xff },
896  { 0xba, 0x00, 0x0c },
897  { 0xc8, 0x00, 0xff },
898  { 0xcd, 0x00, 0x04 },
899  { 0xcd, 0x00, 0x20 },
900  { 0xe8, 0x02, 0xff },
901  { 0xcf, 0x20, 0xff },
902  { 0x9b, 0xd7, 0xff },
903  { 0x9a, 0x01, 0x03 },
904  { 0xa8, 0x05, 0x0f },
905  { 0xa8, 0x65, 0xf0 },
906  { 0xa6, 0xa0, 0xf0 },
907  { 0x9d, 0x50, 0xfc },
908  { 0x9e, 0x20, 0xe0 },
909  { 0xa3, 0x1c, 0x7c },
910  { 0xd5, 0x03, 0x03 },
911  };
912 
913  /* firmware status */
914  ret = tda10071_rd_reg(priv, 0x51, &tmp);
915  if (ret)
916  goto error;
917 
918  if (!tmp) {
919  /* warm state - wake up device from sleep */
920  priv->warm = 1;
921 
922  for (i = 0; i < ARRAY_SIZE(tab); i++) {
923  ret = tda10071_wr_reg_mask(priv, tab[i].reg,
924  tab[i].val, tab[i].mask);
925  if (ret)
926  goto error;
927  }
928 
929  cmd.args[0] = CMD_SET_SLEEP_MODE;
930  cmd.args[1] = 0;
931  cmd.args[2] = 0;
932  cmd.len = 3;
933  ret = tda10071_cmd_execute(priv, &cmd);
934  if (ret)
935  goto error;
936  } else {
937  /* cold state - try to download firmware */
938  priv->warm = 0;
939 
940  /* request the firmware, this will block and timeout */
941  ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent);
942  if (ret) {
943  dev_err(&priv->i2c->dev, "%s: did not find the " \
944  "firmware file. (%s) Please see " \
945  "linux/Documentation/dvb/ for more " \
946  "details on firmware-problems. (%d)\n",
947  KBUILD_MODNAME, fw_file, ret);
948  goto error;
949  }
950 
951  /* init */
952  for (i = 0; i < ARRAY_SIZE(tab2); i++) {
953  ret = tda10071_wr_reg_mask(priv, tab2[i].reg,
954  tab2[i].val, tab2[i].mask);
955  if (ret)
956  goto error_release_firmware;
957  }
958 
959  /* download firmware */
960  ret = tda10071_wr_reg(priv, 0xe0, 0x7f);
961  if (ret)
962  goto error_release_firmware;
963 
964  ret = tda10071_wr_reg(priv, 0xf7, 0x81);
965  if (ret)
966  goto error_release_firmware;
967 
968  ret = tda10071_wr_reg(priv, 0xf8, 0x00);
969  if (ret)
970  goto error_release_firmware;
971 
972  ret = tda10071_wr_reg(priv, 0xf9, 0x00);
973  if (ret)
974  goto error_release_firmware;
975 
976  dev_info(&priv->i2c->dev, "%s: found a '%s' in cold state, " \
977  "will try to load a firmware\n", KBUILD_MODNAME,
978  tda10071_ops.info.name);
979  dev_info(&priv->i2c->dev, "%s: downloading firmware from " \
980  "file '%s'\n", KBUILD_MODNAME, fw_file);
981 
982  /* do not download last byte */
983  fw_size = fw->size - 1;
984 
985  for (remaining = fw_size; remaining > 0;
986  remaining -= (priv->cfg.i2c_wr_max - 1)) {
987  len = remaining;
988  if (len > (priv->cfg.i2c_wr_max - 1))
989  len = (priv->cfg.i2c_wr_max - 1);
990 
991  ret = tda10071_wr_regs(priv, 0xfa,
992  (u8 *) &fw->data[fw_size - remaining], len);
993  if (ret) {
994  dev_err(&priv->i2c->dev, "%s: firmware " \
995  "download failed=%d\n",
996  KBUILD_MODNAME, ret);
997  if (ret)
998  goto error_release_firmware;
999  }
1000  }
1001  release_firmware(fw);
1002 
1003  ret = tda10071_wr_reg(priv, 0xf7, 0x0c);
1004  if (ret)
1005  goto error;
1006 
1007  ret = tda10071_wr_reg(priv, 0xe0, 0x00);
1008  if (ret)
1009  goto error;
1010 
1011  /* wait firmware start */
1012  msleep(250);
1013 
1014  /* firmware status */
1015  ret = tda10071_rd_reg(priv, 0x51, &tmp);
1016  if (ret)
1017  goto error;
1018 
1019  if (tmp) {
1020  dev_info(&priv->i2c->dev, "%s: firmware did not run\n",
1021  KBUILD_MODNAME);
1022  ret = -EFAULT;
1023  goto error;
1024  } else {
1025  priv->warm = 1;
1026  }
1027 
1028  cmd.args[0] = CMD_GET_FW_VERSION;
1029  cmd.len = 1;
1030  ret = tda10071_cmd_execute(priv, &cmd);
1031  if (ret)
1032  goto error;
1033 
1034  ret = tda10071_rd_regs(priv, cmd.len, buf, 4);
1035  if (ret)
1036  goto error;
1037 
1038  dev_info(&priv->i2c->dev, "%s: firmware version %d.%d.%d.%d\n",
1039  KBUILD_MODNAME, buf[0], buf[1], buf[2], buf[3]);
1040  dev_info(&priv->i2c->dev, "%s: found a '%s' in warm state\n",
1041  KBUILD_MODNAME, tda10071_ops.info.name);
1042 
1043  ret = tda10071_rd_regs(priv, 0x81, buf, 2);
1044  if (ret)
1045  goto error;
1046 
1047  cmd.args[0] = CMD_DEMOD_INIT;
1048  cmd.args[1] = ((priv->cfg.xtal / 1000) >> 8) & 0xff;
1049  cmd.args[2] = ((priv->cfg.xtal / 1000) >> 0) & 0xff;
1050  cmd.args[3] = buf[0];
1051  cmd.args[4] = buf[1];
1052  cmd.args[5] = priv->cfg.pll_multiplier;
1053  cmd.args[6] = priv->cfg.spec_inv;
1054  cmd.args[7] = 0x00;
1055  cmd.len = 8;
1056  ret = tda10071_cmd_execute(priv, &cmd);
1057  if (ret)
1058  goto error;
1059 
1060  cmd.args[0] = CMD_TUNER_INIT;
1061  cmd.args[1] = 0x00;
1062  cmd.args[2] = 0x00;
1063  cmd.args[3] = 0x00;
1064  cmd.args[4] = 0x00;
1065  cmd.args[5] = 0x14;
1066  cmd.args[6] = 0x00;
1067  cmd.args[7] = 0x03;
1068  cmd.args[8] = 0x02;
1069  cmd.args[9] = 0x02;
1070  cmd.args[10] = 0x00;
1071  cmd.args[11] = 0x00;
1072  cmd.args[12] = 0x00;
1073  cmd.args[13] = 0x00;
1074  cmd.args[14] = 0x00;
1075  cmd.len = 15;
1076  ret = tda10071_cmd_execute(priv, &cmd);
1077  if (ret)
1078  goto error;
1079 
1080  cmd.args[0] = CMD_MPEG_CONFIG;
1081  cmd.args[1] = 0;
1082  cmd.args[2] = priv->cfg.ts_mode;
1083  cmd.args[3] = 0x00;
1084  cmd.args[4] = 0x04;
1085  cmd.args[5] = 0x00;
1086  cmd.len = 6;
1087  ret = tda10071_cmd_execute(priv, &cmd);
1088  if (ret)
1089  goto error;
1090 
1091  ret = tda10071_wr_reg_mask(priv, 0xf0, 0x01, 0x01);
1092  if (ret)
1093  goto error;
1094 
1095  cmd.args[0] = CMD_LNB_CONFIG;
1096  cmd.args[1] = 0;
1097  cmd.args[2] = 150;
1098  cmd.args[3] = 3;
1099  cmd.args[4] = 22;
1100  cmd.args[5] = 1;
1101  cmd.args[6] = 1;
1102  cmd.args[7] = 30;
1103  cmd.args[8] = 30;
1104  cmd.args[9] = 30;
1105  cmd.args[10] = 30;
1106  cmd.len = 11;
1107  ret = tda10071_cmd_execute(priv, &cmd);
1108  if (ret)
1109  goto error;
1110 
1111  cmd.args[0] = CMD_BER_CONTROL;
1112  cmd.args[1] = 0;
1113  cmd.args[2] = 14;
1114  cmd.args[3] = 14;
1115  cmd.len = 4;
1116  ret = tda10071_cmd_execute(priv, &cmd);
1117  if (ret)
1118  goto error;
1119  }
1120 
1121  return ret;
1122 error_release_firmware:
1123  release_firmware(fw);
1124 error:
1125  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1126  return ret;
1127 }
1128 
1129 static int tda10071_sleep(struct dvb_frontend *fe)
1130 {
1131  struct tda10071_priv *priv = fe->demodulator_priv;
1132  struct tda10071_cmd cmd;
1133  int ret, i;
1134  struct tda10071_reg_val_mask tab[] = {
1135  { 0xcd, 0x07, 0x07 },
1136  { 0x80, 0x02, 0x02 },
1137  { 0xcd, 0xc0, 0xc0 },
1138  { 0xce, 0x1b, 0x1b },
1139  { 0x9d, 0x01, 0x01 },
1140  { 0x9d, 0x02, 0x02 },
1141  { 0x9e, 0x01, 0x01 },
1142  { 0x87, 0x80, 0x80 },
1143  { 0xce, 0x08, 0x08 },
1144  { 0xce, 0x10, 0x10 },
1145  };
1146 
1147  if (!priv->warm) {
1148  ret = -EFAULT;
1149  goto error;
1150  }
1151 
1152  cmd.args[0] = CMD_SET_SLEEP_MODE;
1153  cmd.args[1] = 0;
1154  cmd.args[2] = 1;
1155  cmd.len = 3;
1156  ret = tda10071_cmd_execute(priv, &cmd);
1157  if (ret)
1158  goto error;
1159 
1160  for (i = 0; i < ARRAY_SIZE(tab); i++) {
1161  ret = tda10071_wr_reg_mask(priv, tab[i].reg, tab[i].val,
1162  tab[i].mask);
1163  if (ret)
1164  goto error;
1165  }
1166 
1167  return ret;
1168 error:
1169  dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1170  return ret;
1171 }
1172 
1173 static int tda10071_get_tune_settings(struct dvb_frontend *fe,
1174  struct dvb_frontend_tune_settings *s)
1175 {
1176  s->min_delay_ms = 8000;
1177  s->step_size = 0;
1178  s->max_drift = 0;
1179 
1180  return 0;
1181 }
1182 
1183 static void tda10071_release(struct dvb_frontend *fe)
1184 {
1185  struct tda10071_priv *priv = fe->demodulator_priv;
1186  kfree(priv);
1187 }
1188 
1189 struct dvb_frontend *tda10071_attach(const struct tda10071_config *config,
1190  struct i2c_adapter *i2c)
1191 {
1192  int ret;
1193  struct tda10071_priv *priv = NULL;
1194  u8 tmp;
1195 
1196  /* allocate memory for the internal priv */
1197  priv = kzalloc(sizeof(struct tda10071_priv), GFP_KERNEL);
1198  if (priv == NULL) {
1199  ret = -ENOMEM;
1200  goto error;
1201  }
1202 
1203  /* setup the priv */
1204  priv->i2c = i2c;
1205  memcpy(&priv->cfg, config, sizeof(struct tda10071_config));
1206 
1207  /* chip ID */
1208  ret = tda10071_rd_reg(priv, 0xff, &tmp);
1209  if (ret || tmp != 0x0f)
1210  goto error;
1211 
1212  /* chip type */
1213  ret = tda10071_rd_reg(priv, 0xdd, &tmp);
1214  if (ret || tmp != 0x00)
1215  goto error;
1216 
1217  /* chip version */
1218  ret = tda10071_rd_reg(priv, 0xfe, &tmp);
1219  if (ret || tmp != 0x01)
1220  goto error;
1221 
1222  /* create dvb_frontend */
1223  memcpy(&priv->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
1224  priv->fe.demodulator_priv = priv;
1225 
1226  return &priv->fe;
1227 error:
1228  dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
1229  kfree(priv);
1230  return NULL;
1231 }
1232 EXPORT_SYMBOL(tda10071_attach);
1233 
1234 static struct dvb_frontend_ops tda10071_ops = {
1235  .delsys = { SYS_DVBS, SYS_DVBS2 },
1236  .info = {
1237  .name = "NXP TDA10071",
1238  .frequency_min = 950000,
1239  .frequency_max = 2150000,
1240  .frequency_tolerance = 5000,
1241  .symbol_rate_min = 1000000,
1242  .symbol_rate_max = 45000000,
1243  .caps = FE_CAN_INVERSION_AUTO |
1244  FE_CAN_FEC_1_2 |
1245  FE_CAN_FEC_2_3 |
1246  FE_CAN_FEC_3_4 |
1247  FE_CAN_FEC_4_5 |
1248  FE_CAN_FEC_5_6 |
1249  FE_CAN_FEC_6_7 |
1250  FE_CAN_FEC_7_8 |
1251  FE_CAN_FEC_8_9 |
1252  FE_CAN_FEC_AUTO |
1253  FE_CAN_QPSK |
1254  FE_CAN_RECOVER |
1255  FE_CAN_2G_MODULATION
1256  },
1257 
1258  .release = tda10071_release,
1259 
1260  .get_tune_settings = tda10071_get_tune_settings,
1261 
1262  .init = tda10071_init,
1263  .sleep = tda10071_sleep,
1264 
1265  .set_frontend = tda10071_set_frontend,
1266  .get_frontend = tda10071_get_frontend,
1267 
1268  .read_status = tda10071_read_status,
1269  .read_snr = tda10071_read_snr,
1270  .read_signal_strength = tda10071_read_signal_strength,
1271  .read_ber = tda10071_read_ber,
1272  .read_ucblocks = tda10071_read_ucblocks,
1273 
1274  .diseqc_send_master_cmd = tda10071_diseqc_send_master_cmd,
1275  .diseqc_recv_slave_reply = tda10071_diseqc_recv_slave_reply,
1276  .diseqc_send_burst = tda10071_diseqc_send_burst,
1277 
1278  .set_tone = tda10071_set_tone,
1279  .set_voltage = tda10071_set_voltage,
1280 };
1281 
1282 MODULE_AUTHOR("Antti Palosaari <[email protected]>");
1283 MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
1284 MODULE_LICENSE("GPL");
1285 MODULE_FIRMWARE(TDA10071_FIRMWARE);
Generated on Thu Jan 10 2013 13:46:09 for Linux Kernel by   doxygen 1.8.2