Merge remote-tracking branch 'lsk/v3.10/topic/gator' into linux-linaro-lsk
[firefly-linux-kernel-4.4.55.git] / drivers / media / dvb-frontends / tda10071.c
1 /*
2  * NXP TDA10071 + Conexant CX24118A DVB-S/S2 demodulator + tuner driver
3  *
4  * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
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 /* Max transfer size done by I2C transfer functions */
24 #define MAX_XFER_SIZE  64
25
26 static struct dvb_frontend_ops tda10071_ops;
27
28 /* write multiple registers */
29 static int tda10071_wr_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
30         int len)
31 {
32         int ret;
33         u8 buf[MAX_XFER_SIZE];
34         struct i2c_msg msg[1] = {
35                 {
36                         .addr = priv->cfg.demod_i2c_addr,
37                         .flags = 0,
38                         .len = 1 + len,
39                         .buf = buf,
40                 }
41         };
42
43         if (1 + len > sizeof(buf)) {
44                 dev_warn(&priv->i2c->dev,
45                          "%s: i2c wr reg=%04x: len=%d is too big!\n",
46                          KBUILD_MODNAME, reg, len);
47                 return -EINVAL;
48         }
49
50         buf[0] = reg;
51         memcpy(&buf[1], val, len);
52
53         ret = i2c_transfer(priv->i2c, msg, 1);
54         if (ret == 1) {
55                 ret = 0;
56         } else {
57                 dev_warn(&priv->i2c->dev, "%s: i2c wr failed=%d reg=%02x " \
58                                 "len=%d\n", KBUILD_MODNAME, ret, reg, len);
59                 ret = -EREMOTEIO;
60         }
61         return ret;
62 }
63
64 /* read multiple registers */
65 static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
66         int len)
67 {
68         int ret;
69         u8 buf[MAX_XFER_SIZE];
70         struct i2c_msg msg[2] = {
71                 {
72                         .addr = priv->cfg.demod_i2c_addr,
73                         .flags = 0,
74                         .len = 1,
75                         .buf = &reg,
76                 }, {
77                         .addr = priv->cfg.demod_i2c_addr,
78                         .flags = I2C_M_RD,
79                         .len = len,
80                         .buf = buf,
81                 }
82         };
83
84         if (len > sizeof(buf)) {
85                 dev_warn(&priv->i2c->dev,
86                          "%s: i2c wr reg=%04x: len=%d is too big!\n",
87                          KBUILD_MODNAME, reg, len);
88                 return -EINVAL;
89         }
90
91         ret = i2c_transfer(priv->i2c, msg, 2);
92         if (ret == 2) {
93                 memcpy(val, buf, len);
94                 ret = 0;
95         } else {
96                 dev_warn(&priv->i2c->dev, "%s: i2c rd failed=%d reg=%02x " \
97                                 "len=%d\n", KBUILD_MODNAME, ret, reg, len);
98                 ret = -EREMOTEIO;
99         }
100         return ret;
101 }
102
103 /* write single register */
104 static int tda10071_wr_reg(struct tda10071_priv *priv, u8 reg, u8 val)
105 {
106         return tda10071_wr_regs(priv, reg, &val, 1);
107 }
108
109 /* read single register */
110 static int tda10071_rd_reg(struct tda10071_priv *priv, u8 reg, u8 *val)
111 {
112         return tda10071_rd_regs(priv, reg, val, 1);
113 }
114
115 /* write single register with mask */
116 static int tda10071_wr_reg_mask(struct tda10071_priv *priv,
117                                 u8 reg, u8 val, u8 mask)
118 {
119         int ret;
120         u8 tmp;
121
122         /* no need for read if whole reg is written */
123         if (mask != 0xff) {
124                 ret = tda10071_rd_regs(priv, reg, &tmp, 1);
125                 if (ret)
126                         return ret;
127
128                 val &= mask;
129                 tmp &= ~mask;
130                 val |= tmp;
131         }
132
133         return tda10071_wr_regs(priv, reg, &val, 1);
134 }
135
136 /* read single register with mask */
137 static int tda10071_rd_reg_mask(struct tda10071_priv *priv,
138                                 u8 reg, u8 *val, u8 mask)
139 {
140         int ret, i;
141         u8 tmp;
142
143         ret = tda10071_rd_regs(priv, reg, &tmp, 1);
144         if (ret)
145                 return ret;
146
147         tmp &= mask;
148
149         /* find position of the first bit */
150         for (i = 0; i < 8; i++) {
151                 if ((mask >> i) & 0x01)
152                         break;
153         }
154         *val = tmp >> i;
155
156         return 0;
157 }
158
159 /* execute firmware command */
160 static int tda10071_cmd_execute(struct tda10071_priv *priv,
161         struct tda10071_cmd *cmd)
162 {
163         int ret, i;
164         u8 tmp;
165
166         if (!priv->warm) {
167                 ret = -EFAULT;
168                 goto error;
169         }
170
171         /* write cmd and args for firmware */
172         ret = tda10071_wr_regs(priv, 0x00, cmd->args, cmd->len);
173         if (ret)
174                 goto error;
175
176         /* start cmd execution */
177         ret = tda10071_wr_reg(priv, 0x1f, 1);
178         if (ret)
179                 goto error;
180
181         /* wait cmd execution terminate */
182         for (i = 1000, tmp = 1; i && tmp; i--) {
183                 ret = tda10071_rd_reg(priv, 0x1f, &tmp);
184                 if (ret)
185                         goto error;
186
187                 usleep_range(200, 5000);
188         }
189
190         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
191
192         if (i == 0) {
193                 ret = -ETIMEDOUT;
194                 goto error;
195         }
196
197         return ret;
198 error:
199         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
200         return ret;
201 }
202
203 static int tda10071_set_tone(struct dvb_frontend *fe,
204         fe_sec_tone_mode_t fe_sec_tone_mode)
205 {
206         struct tda10071_priv *priv = fe->demodulator_priv;
207         struct tda10071_cmd cmd;
208         int ret;
209         u8 tone;
210
211         if (!priv->warm) {
212                 ret = -EFAULT;
213                 goto error;
214         }
215
216         dev_dbg(&priv->i2c->dev, "%s: tone_mode=%d\n", __func__,
217                         fe_sec_tone_mode);
218
219         switch (fe_sec_tone_mode) {
220         case SEC_TONE_ON:
221                 tone = 1;
222                 break;
223         case SEC_TONE_OFF:
224                 tone = 0;
225                 break;
226         default:
227                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_tone_mode\n",
228                                 __func__);
229                 ret = -EINVAL;
230                 goto error;
231         }
232
233         cmd.args[0] = CMD_LNB_PCB_CONFIG;
234         cmd.args[1] = 0;
235         cmd.args[2] = 0x00;
236         cmd.args[3] = 0x00;
237         cmd.args[4] = tone;
238         cmd.len = 5;
239         ret = tda10071_cmd_execute(priv, &cmd);
240         if (ret)
241                 goto error;
242
243         return ret;
244 error:
245         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
246         return ret;
247 }
248
249 static int tda10071_set_voltage(struct dvb_frontend *fe,
250         fe_sec_voltage_t fe_sec_voltage)
251 {
252         struct tda10071_priv *priv = fe->demodulator_priv;
253         struct tda10071_cmd cmd;
254         int ret;
255         u8 voltage;
256
257         if (!priv->warm) {
258                 ret = -EFAULT;
259                 goto error;
260         }
261
262         dev_dbg(&priv->i2c->dev, "%s: voltage=%d\n", __func__, fe_sec_voltage);
263
264         switch (fe_sec_voltage) {
265         case SEC_VOLTAGE_13:
266                 voltage = 0;
267                 break;
268         case SEC_VOLTAGE_18:
269                 voltage = 1;
270                 break;
271         case SEC_VOLTAGE_OFF:
272                 voltage = 0;
273                 break;
274         default:
275                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_voltage\n",
276                                 __func__);
277                 ret = -EINVAL;
278                 goto error;
279         }
280
281         cmd.args[0] = CMD_LNB_SET_DC_LEVEL;
282         cmd.args[1] = 0;
283         cmd.args[2] = voltage;
284         cmd.len = 3;
285         ret = tda10071_cmd_execute(priv, &cmd);
286         if (ret)
287                 goto error;
288
289         return ret;
290 error:
291         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
292         return ret;
293 }
294
295 static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe,
296         struct dvb_diseqc_master_cmd *diseqc_cmd)
297 {
298         struct tda10071_priv *priv = fe->demodulator_priv;
299         struct tda10071_cmd cmd;
300         int ret, i;
301         u8 tmp;
302
303         if (!priv->warm) {
304                 ret = -EFAULT;
305                 goto error;
306         }
307
308         dev_dbg(&priv->i2c->dev, "%s: msg_len=%d\n", __func__,
309                         diseqc_cmd->msg_len);
310
311         if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) {
312                 ret = -EINVAL;
313                 goto error;
314         }
315
316         /* wait LNB TX */
317         for (i = 500, tmp = 0; i && !tmp; i--) {
318                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
319                 if (ret)
320                         goto error;
321
322                 usleep_range(10000, 20000);
323         }
324
325         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
326
327         if (i == 0) {
328                 ret = -ETIMEDOUT;
329                 goto error;
330         }
331
332         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
333         if (ret)
334                 goto error;
335
336         cmd.args[0] = CMD_LNB_SEND_DISEQC;
337         cmd.args[1] = 0;
338         cmd.args[2] = 0;
339         cmd.args[3] = 0;
340         cmd.args[4] = 2;
341         cmd.args[5] = 0;
342         cmd.args[6] = diseqc_cmd->msg_len;
343         memcpy(&cmd.args[7], diseqc_cmd->msg, diseqc_cmd->msg_len);
344         cmd.len = 7 + diseqc_cmd->msg_len;
345         ret = tda10071_cmd_execute(priv, &cmd);
346         if (ret)
347                 goto error;
348
349         return ret;
350 error:
351         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
352         return ret;
353 }
354
355 static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe,
356         struct dvb_diseqc_slave_reply *reply)
357 {
358         struct tda10071_priv *priv = fe->demodulator_priv;
359         struct tda10071_cmd cmd;
360         int ret, i;
361         u8 tmp;
362
363         if (!priv->warm) {
364                 ret = -EFAULT;
365                 goto error;
366         }
367
368         dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
369
370         /* wait LNB RX */
371         for (i = 500, tmp = 0; i && !tmp; i--) {
372                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x02);
373                 if (ret)
374                         goto error;
375
376                 usleep_range(10000, 20000);
377         }
378
379         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
380
381         if (i == 0) {
382                 ret = -ETIMEDOUT;
383                 goto error;
384         }
385
386         /* reply len */
387         ret = tda10071_rd_reg(priv, 0x46, &tmp);
388         if (ret)
389                 goto error;
390
391         reply->msg_len = tmp & 0x1f; /* [4:0] */
392         if (reply->msg_len > sizeof(reply->msg))
393                 reply->msg_len = sizeof(reply->msg); /* truncate API max */
394
395         /* read reply */
396         cmd.args[0] = CMD_LNB_UPDATE_REPLY;
397         cmd.args[1] = 0;
398         cmd.len = 2;
399         ret = tda10071_cmd_execute(priv, &cmd);
400         if (ret)
401                 goto error;
402
403         ret = tda10071_rd_regs(priv, cmd.len, reply->msg, reply->msg_len);
404         if (ret)
405                 goto error;
406
407         return ret;
408 error:
409         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
410         return ret;
411 }
412
413 static int tda10071_diseqc_send_burst(struct dvb_frontend *fe,
414         fe_sec_mini_cmd_t fe_sec_mini_cmd)
415 {
416         struct tda10071_priv *priv = fe->demodulator_priv;
417         struct tda10071_cmd cmd;
418         int ret, i;
419         u8 tmp, burst;
420
421         if (!priv->warm) {
422                 ret = -EFAULT;
423                 goto error;
424         }
425
426         dev_dbg(&priv->i2c->dev, "%s: fe_sec_mini_cmd=%d\n", __func__,
427                         fe_sec_mini_cmd);
428
429         switch (fe_sec_mini_cmd) {
430         case SEC_MINI_A:
431                 burst = 0;
432                 break;
433         case SEC_MINI_B:
434                 burst = 1;
435                 break;
436         default:
437                 dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_mini_cmd\n",
438                                 __func__);
439                 ret = -EINVAL;
440                 goto error;
441         }
442
443         /* wait LNB TX */
444         for (i = 500, tmp = 0; i && !tmp; i--) {
445                 ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01);
446                 if (ret)
447                         goto error;
448
449                 usleep_range(10000, 20000);
450         }
451
452         dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i);
453
454         if (i == 0) {
455                 ret = -ETIMEDOUT;
456                 goto error;
457         }
458
459         ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01);
460         if (ret)
461                 goto error;
462
463         cmd.args[0] = CMD_LNB_SEND_TONEBURST;
464         cmd.args[1] = 0;
465         cmd.args[2] = burst;
466         cmd.len = 3;
467         ret = tda10071_cmd_execute(priv, &cmd);
468         if (ret)
469                 goto error;
470
471         return ret;
472 error:
473         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
474         return ret;
475 }
476
477 static int tda10071_read_status(struct dvb_frontend *fe, fe_status_t *status)
478 {
479         struct tda10071_priv *priv = fe->demodulator_priv;
480         int ret;
481         u8 tmp;
482
483         *status = 0;
484
485         if (!priv->warm) {
486                 ret = 0;
487                 goto error;
488         }
489
490         ret = tda10071_rd_reg(priv, 0x39, &tmp);
491         if (ret)
492                 goto error;
493
494         if (tmp & 0x01) /* tuner PLL */
495                 *status |= FE_HAS_SIGNAL;
496         if (tmp & 0x02) /* demod PLL */
497                 *status |= FE_HAS_CARRIER;
498         if (tmp & 0x04) /* viterbi or LDPC*/
499                 *status |= FE_HAS_VITERBI;
500         if (tmp & 0x08) /* RS or BCH */
501                 *status |= FE_HAS_SYNC | FE_HAS_LOCK;
502
503         priv->fe_status = *status;
504
505         return ret;
506 error:
507         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
508         return ret;
509 }
510
511 static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr)
512 {
513         struct tda10071_priv *priv = fe->demodulator_priv;
514         int ret;
515         u8 buf[2];
516
517         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
518                 *snr = 0;
519                 ret = 0;
520                 goto error;
521         }
522
523         ret = tda10071_rd_regs(priv, 0x3a, buf, 2);
524         if (ret)
525                 goto error;
526
527         /* Es/No dBx10 */
528         *snr = buf[0] << 8 | buf[1];
529
530         return ret;
531 error:
532         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
533         return ret;
534 }
535
536 static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
537 {
538         struct tda10071_priv *priv = fe->demodulator_priv;
539         struct tda10071_cmd cmd;
540         int ret;
541         u8 tmp;
542
543         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
544                 *strength = 0;
545                 ret = 0;
546                 goto error;
547         }
548
549         cmd.args[0] = CMD_GET_AGCACC;
550         cmd.args[1] = 0;
551         cmd.len = 2;
552         ret = tda10071_cmd_execute(priv, &cmd);
553         if (ret)
554                 goto error;
555
556         /* input power estimate dBm */
557         ret = tda10071_rd_reg(priv, 0x50, &tmp);
558         if (ret)
559                 goto error;
560
561         if (tmp < 181)
562                 tmp = 181; /* -75 dBm */
563         else if (tmp > 236)
564                 tmp = 236; /* -20 dBm */
565
566         /* scale value to 0x0000-0xffff */
567         *strength = (tmp-181) * 0xffff / (236-181);
568
569         return ret;
570 error:
571         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
572         return ret;
573 }
574
575 static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber)
576 {
577         struct tda10071_priv *priv = fe->demodulator_priv;
578         struct tda10071_cmd cmd;
579         int ret, i, len;
580         u8 tmp, reg, buf[8];
581
582         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
583                 *ber = priv->ber = 0;
584                 ret = 0;
585                 goto error;
586         }
587
588         switch (priv->delivery_system) {
589         case SYS_DVBS:
590                 reg = 0x4c;
591                 len = 8;
592                 i = 1;
593                 break;
594         case SYS_DVBS2:
595                 reg = 0x4d;
596                 len = 4;
597                 i = 0;
598                 break;
599         default:
600                 *ber = priv->ber = 0;
601                 return 0;
602         }
603
604         ret = tda10071_rd_reg(priv, reg, &tmp);
605         if (ret)
606                 goto error;
607
608         if (priv->meas_count[i] == tmp) {
609                 dev_dbg(&priv->i2c->dev, "%s: meas not ready=%02x\n", __func__,
610                                 tmp);
611                 *ber = priv->ber;
612                 return 0;
613         } else {
614                 priv->meas_count[i] = tmp;
615         }
616
617         cmd.args[0] = CMD_BER_UPDATE_COUNTERS;
618         cmd.args[1] = 0;
619         cmd.args[2] = i;
620         cmd.len = 3;
621         ret = tda10071_cmd_execute(priv, &cmd);
622         if (ret)
623                 goto error;
624
625         ret = tda10071_rd_regs(priv, cmd.len, buf, len);
626         if (ret)
627                 goto error;
628
629         if (priv->delivery_system == SYS_DVBS) {
630                 *ber = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
631                 priv->ucb += (buf[4] << 8) | buf[5];
632         } else {
633                 *ber = (buf[0] << 8) | buf[1];
634         }
635         priv->ber = *ber;
636
637         return ret;
638 error:
639         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
640         return ret;
641 }
642
643 static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
644 {
645         struct tda10071_priv *priv = fe->demodulator_priv;
646         int ret = 0;
647
648         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
649                 *ucblocks = 0;
650                 goto error;
651         }
652
653         /* UCB is updated when BER is read. Assume BER is read anyway. */
654
655         *ucblocks = priv->ucb;
656
657         return ret;
658 error:
659         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
660         return ret;
661 }
662
663 static int tda10071_set_frontend(struct dvb_frontend *fe)
664 {
665         struct tda10071_priv *priv = fe->demodulator_priv;
666         struct tda10071_cmd cmd;
667         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
668         int ret, i;
669         u8 mode, rolloff, pilot, inversion, div;
670         fe_modulation_t modulation;
671
672         dev_dbg(&priv->i2c->dev, "%s: delivery_system=%d modulation=%d " \
673                 "frequency=%d symbol_rate=%d inversion=%d pilot=%d " \
674                 "rolloff=%d\n", __func__, c->delivery_system, c->modulation,
675                 c->frequency, c->symbol_rate, c->inversion, c->pilot,
676                 c->rolloff);
677
678         priv->delivery_system = SYS_UNDEFINED;
679
680         if (!priv->warm) {
681                 ret = -EFAULT;
682                 goto error;
683         }
684
685         switch (c->inversion) {
686         case INVERSION_OFF:
687                 inversion = 1;
688                 break;
689         case INVERSION_ON:
690                 inversion = 0;
691                 break;
692         case INVERSION_AUTO:
693                 /* 2 = auto; try first on then off
694                  * 3 = auto; try first off then on */
695                 inversion = 3;
696                 break;
697         default:
698                 dev_dbg(&priv->i2c->dev, "%s: invalid inversion\n", __func__);
699                 ret = -EINVAL;
700                 goto error;
701         }
702
703         switch (c->delivery_system) {
704         case SYS_DVBS:
705                 modulation = QPSK;
706                 rolloff = 0;
707                 pilot = 2;
708                 break;
709         case SYS_DVBS2:
710                 modulation = c->modulation;
711
712                 switch (c->rolloff) {
713                 case ROLLOFF_20:
714                         rolloff = 2;
715                         break;
716                 case ROLLOFF_25:
717                         rolloff = 1;
718                         break;
719                 case ROLLOFF_35:
720                         rolloff = 0;
721                         break;
722                 case ROLLOFF_AUTO:
723                 default:
724                         dev_dbg(&priv->i2c->dev, "%s: invalid rolloff\n",
725                                         __func__);
726                         ret = -EINVAL;
727                         goto error;
728                 }
729
730                 switch (c->pilot) {
731                 case PILOT_OFF:
732                         pilot = 0;
733                         break;
734                 case PILOT_ON:
735                         pilot = 1;
736                         break;
737                 case PILOT_AUTO:
738                         pilot = 2;
739                         break;
740                 default:
741                         dev_dbg(&priv->i2c->dev, "%s: invalid pilot\n",
742                                         __func__);
743                         ret = -EINVAL;
744                         goto error;
745                 }
746                 break;
747         default:
748                 dev_dbg(&priv->i2c->dev, "%s: invalid delivery_system\n",
749                                 __func__);
750                 ret = -EINVAL;
751                 goto error;
752         }
753
754         for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
755                 if (c->delivery_system == TDA10071_MODCOD[i].delivery_system &&
756                         modulation == TDA10071_MODCOD[i].modulation &&
757                         c->fec_inner == TDA10071_MODCOD[i].fec) {
758                         mode = TDA10071_MODCOD[i].val;
759                         dev_dbg(&priv->i2c->dev, "%s: mode found=%02x\n",
760                                         __func__, mode);
761                         break;
762                 }
763         }
764
765         if (mode == 0xff) {
766                 dev_dbg(&priv->i2c->dev, "%s: invalid parameter combination\n",
767                                 __func__);
768                 ret = -EINVAL;
769                 goto error;
770         }
771
772         if (c->symbol_rate <= 5000000)
773                 div = 14;
774         else
775                 div = 4;
776
777         ret = tda10071_wr_reg(priv, 0x81, div);
778         if (ret)
779                 goto error;
780
781         ret = tda10071_wr_reg(priv, 0xe3, div);
782         if (ret)
783                 goto error;
784
785         cmd.args[0] = CMD_CHANGE_CHANNEL;
786         cmd.args[1] = 0;
787         cmd.args[2] = mode;
788         cmd.args[3] = (c->frequency >> 16) & 0xff;
789         cmd.args[4] = (c->frequency >>  8) & 0xff;
790         cmd.args[5] = (c->frequency >>  0) & 0xff;
791         cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff;
792         cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff;
793         cmd.args[8] = (tda10071_ops.info.frequency_tolerance >> 8) & 0xff;
794         cmd.args[9] = (tda10071_ops.info.frequency_tolerance >> 0) & 0xff;
795         cmd.args[10] = rolloff;
796         cmd.args[11] = inversion;
797         cmd.args[12] = pilot;
798         cmd.args[13] = 0x00;
799         cmd.args[14] = 0x00;
800         cmd.len = 15;
801         ret = tda10071_cmd_execute(priv, &cmd);
802         if (ret)
803                 goto error;
804
805         priv->delivery_system = c->delivery_system;
806
807         return ret;
808 error:
809         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
810         return ret;
811 }
812
813 static int tda10071_get_frontend(struct dvb_frontend *fe)
814 {
815         struct tda10071_priv *priv = fe->demodulator_priv;
816         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
817         int ret, i;
818         u8 buf[5], tmp;
819
820         if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) {
821                 ret = -EFAULT;
822                 goto error;
823         }
824
825         ret = tda10071_rd_regs(priv, 0x30, buf, 5);
826         if (ret)
827                 goto error;
828
829         tmp = buf[0] & 0x3f;
830         for (i = 0; i < ARRAY_SIZE(TDA10071_MODCOD); i++) {
831                 if (tmp == TDA10071_MODCOD[i].val) {
832                         c->modulation = TDA10071_MODCOD[i].modulation;
833                         c->fec_inner = TDA10071_MODCOD[i].fec;
834                         c->delivery_system = TDA10071_MODCOD[i].delivery_system;
835                 }
836         }
837
838         switch ((buf[1] >> 0) & 0x01) {
839         case 0:
840                 c->inversion = INVERSION_OFF;
841                 break;
842         case 1:
843                 c->inversion = INVERSION_ON;
844                 break;
845         }
846
847         switch ((buf[1] >> 7) & 0x01) {
848         case 0:
849                 c->pilot = PILOT_OFF;
850                 break;
851         case 1:
852                 c->pilot = PILOT_ON;
853                 break;
854         }
855
856         c->frequency = (buf[2] << 16) | (buf[3] << 8) | (buf[4] << 0);
857
858         ret = tda10071_rd_regs(priv, 0x52, buf, 3);
859         if (ret)
860                 goto error;
861
862         c->symbol_rate = (buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0);
863
864         return ret;
865 error:
866         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
867         return ret;
868 }
869
870 static int tda10071_init(struct dvb_frontend *fe)
871 {
872         struct tda10071_priv *priv = fe->demodulator_priv;
873         struct tda10071_cmd cmd;
874         int ret, i, len, remaining, fw_size;
875         const struct firmware *fw;
876         u8 *fw_file = TDA10071_FIRMWARE;
877         u8 tmp, buf[4];
878         struct tda10071_reg_val_mask tab[] = {
879                 { 0xcd, 0x00, 0x07 },
880                 { 0x80, 0x00, 0x02 },
881                 { 0xcd, 0x00, 0xc0 },
882                 { 0xce, 0x00, 0x1b },
883                 { 0x9d, 0x00, 0x01 },
884                 { 0x9d, 0x00, 0x02 },
885                 { 0x9e, 0x00, 0x01 },
886                 { 0x87, 0x00, 0x80 },
887                 { 0xce, 0x00, 0x08 },
888                 { 0xce, 0x00, 0x10 },
889         };
890         struct tda10071_reg_val_mask tab2[] = {
891                 { 0xf1, 0x70, 0xff },
892                 { 0x88, priv->cfg.pll_multiplier, 0x3f },
893                 { 0x89, 0x00, 0x10 },
894                 { 0x89, 0x10, 0x10 },
895                 { 0xc0, 0x01, 0x01 },
896                 { 0xc0, 0x00, 0x01 },
897                 { 0xe0, 0xff, 0xff },
898                 { 0xe0, 0x00, 0xff },
899                 { 0x96, 0x1e, 0x7e },
900                 { 0x8b, 0x08, 0x08 },
901                 { 0x8b, 0x00, 0x08 },
902                 { 0x8f, 0x1a, 0x7e },
903                 { 0x8c, 0x68, 0xff },
904                 { 0x8d, 0x08, 0xff },
905                 { 0x8e, 0x4c, 0xff },
906                 { 0x8f, 0x01, 0x01 },
907                 { 0x8b, 0x04, 0x04 },
908                 { 0x8b, 0x00, 0x04 },
909                 { 0x87, 0x05, 0x07 },
910                 { 0x80, 0x00, 0x20 },
911                 { 0xc8, 0x01, 0xff },
912                 { 0xb4, 0x47, 0xff },
913                 { 0xb5, 0x9c, 0xff },
914                 { 0xb6, 0x7d, 0xff },
915                 { 0xba, 0x00, 0x03 },
916                 { 0xb7, 0x47, 0xff },
917                 { 0xb8, 0x9c, 0xff },
918                 { 0xb9, 0x7d, 0xff },
919                 { 0xba, 0x00, 0x0c },
920                 { 0xc8, 0x00, 0xff },
921                 { 0xcd, 0x00, 0x04 },
922                 { 0xcd, 0x00, 0x20 },
923                 { 0xe8, 0x02, 0xff },
924                 { 0xcf, 0x20, 0xff },
925                 { 0x9b, 0xd7, 0xff },
926                 { 0x9a, 0x01, 0x03 },
927                 { 0xa8, 0x05, 0x0f },
928                 { 0xa8, 0x65, 0xf0 },
929                 { 0xa6, 0xa0, 0xf0 },
930                 { 0x9d, 0x50, 0xfc },
931                 { 0x9e, 0x20, 0xe0 },
932                 { 0xa3, 0x1c, 0x7c },
933                 { 0xd5, 0x03, 0x03 },
934         };
935
936         /* firmware status */
937         ret = tda10071_rd_reg(priv, 0x51, &tmp);
938         if (ret)
939                 goto error;
940
941         if (!tmp) {
942                 /* warm state - wake up device from sleep */
943                 priv->warm = 1;
944
945                 for (i = 0; i < ARRAY_SIZE(tab); i++) {
946                         ret = tda10071_wr_reg_mask(priv, tab[i].reg,
947                                 tab[i].val, tab[i].mask);
948                         if (ret)
949                                 goto error;
950                 }
951
952                 cmd.args[0] = CMD_SET_SLEEP_MODE;
953                 cmd.args[1] = 0;
954                 cmd.args[2] = 0;
955                 cmd.len = 3;
956                 ret = tda10071_cmd_execute(priv, &cmd);
957                 if (ret)
958                         goto error;
959         } else {
960                 /* cold state - try to download firmware */
961                 priv->warm = 0;
962
963                 /* request the firmware, this will block and timeout */
964                 ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent);
965                 if (ret) {
966                         dev_err(&priv->i2c->dev, "%s: did not find the " \
967                                         "firmware file. (%s) Please see " \
968                                         "linux/Documentation/dvb/ for more " \
969                                         "details on firmware-problems. (%d)\n",
970                                         KBUILD_MODNAME, fw_file, ret);
971                         goto error;
972                 }
973
974                 /* init */
975                 for (i = 0; i < ARRAY_SIZE(tab2); i++) {
976                         ret = tda10071_wr_reg_mask(priv, tab2[i].reg,
977                                 tab2[i].val, tab2[i].mask);
978                         if (ret)
979                                 goto error_release_firmware;
980                 }
981
982                 /*  download firmware */
983                 ret = tda10071_wr_reg(priv, 0xe0, 0x7f);
984                 if (ret)
985                         goto error_release_firmware;
986
987                 ret = tda10071_wr_reg(priv, 0xf7, 0x81);
988                 if (ret)
989                         goto error_release_firmware;
990
991                 ret = tda10071_wr_reg(priv, 0xf8, 0x00);
992                 if (ret)
993                         goto error_release_firmware;
994
995                 ret = tda10071_wr_reg(priv, 0xf9, 0x00);
996                 if (ret)
997                         goto error_release_firmware;
998
999                 dev_info(&priv->i2c->dev, "%s: found a '%s' in cold state, " \
1000                                 "will try to load a firmware\n", KBUILD_MODNAME,
1001                                 tda10071_ops.info.name);
1002                 dev_info(&priv->i2c->dev, "%s: downloading firmware from " \
1003                                 "file '%s'\n", KBUILD_MODNAME, fw_file);
1004
1005                 /* do not download last byte */
1006                 fw_size = fw->size - 1;
1007
1008                 for (remaining = fw_size; remaining > 0;
1009                         remaining -= (priv->cfg.i2c_wr_max - 1)) {
1010                         len = remaining;
1011                         if (len > (priv->cfg.i2c_wr_max - 1))
1012                                 len = (priv->cfg.i2c_wr_max - 1);
1013
1014                         ret = tda10071_wr_regs(priv, 0xfa,
1015                                 (u8 *) &fw->data[fw_size - remaining], len);
1016                         if (ret) {
1017                                 dev_err(&priv->i2c->dev, "%s: firmware " \
1018                                                 "download failed=%d\n",
1019                                                 KBUILD_MODNAME, ret);
1020                                 if (ret)
1021                                         goto error_release_firmware;
1022                         }
1023                 }
1024                 release_firmware(fw);
1025
1026                 ret = tda10071_wr_reg(priv, 0xf7, 0x0c);
1027                 if (ret)
1028                         goto error;
1029
1030                 ret = tda10071_wr_reg(priv, 0xe0, 0x00);
1031                 if (ret)
1032                         goto error;
1033
1034                 /* wait firmware start */
1035                 msleep(250);
1036
1037                 /* firmware status */
1038                 ret = tda10071_rd_reg(priv, 0x51, &tmp);
1039                 if (ret)
1040                         goto error;
1041
1042                 if (tmp) {
1043                         dev_info(&priv->i2c->dev, "%s: firmware did not run\n",
1044                                         KBUILD_MODNAME);
1045                         ret = -EFAULT;
1046                         goto error;
1047                 } else {
1048                         priv->warm = 1;
1049                 }
1050
1051                 cmd.args[0] = CMD_GET_FW_VERSION;
1052                 cmd.len = 1;
1053                 ret = tda10071_cmd_execute(priv, &cmd);
1054                 if (ret)
1055                         goto error;
1056
1057                 ret = tda10071_rd_regs(priv, cmd.len, buf, 4);
1058                 if (ret)
1059                         goto error;
1060
1061                 dev_info(&priv->i2c->dev, "%s: firmware version %d.%d.%d.%d\n",
1062                                 KBUILD_MODNAME, buf[0], buf[1], buf[2], buf[3]);
1063                 dev_info(&priv->i2c->dev, "%s: found a '%s' in warm state\n",
1064                                 KBUILD_MODNAME, tda10071_ops.info.name);
1065
1066                 ret = tda10071_rd_regs(priv, 0x81, buf, 2);
1067                 if (ret)
1068                         goto error;
1069
1070                 cmd.args[0] = CMD_DEMOD_INIT;
1071                 cmd.args[1] = ((priv->cfg.xtal / 1000) >> 8) & 0xff;
1072                 cmd.args[2] = ((priv->cfg.xtal / 1000) >> 0) & 0xff;
1073                 cmd.args[3] = buf[0];
1074                 cmd.args[4] = buf[1];
1075                 cmd.args[5] = priv->cfg.pll_multiplier;
1076                 cmd.args[6] = priv->cfg.spec_inv;
1077                 cmd.args[7] = 0x00;
1078                 cmd.len = 8;
1079                 ret = tda10071_cmd_execute(priv, &cmd);
1080                 if (ret)
1081                         goto error;
1082
1083                 cmd.args[0] = CMD_TUNER_INIT;
1084                 cmd.args[1] = 0x00;
1085                 cmd.args[2] = 0x00;
1086                 cmd.args[3] = 0x00;
1087                 cmd.args[4] = 0x00;
1088                 cmd.args[5] = (priv->cfg.tuner_i2c_addr) ? priv->cfg.tuner_i2c_addr : 0x14;
1089                 cmd.args[6] = 0x00;
1090                 cmd.args[7] = 0x03;
1091                 cmd.args[8] = 0x02;
1092                 cmd.args[9] = 0x02;
1093                 cmd.args[10] = 0x00;
1094                 cmd.args[11] = 0x00;
1095                 cmd.args[12] = 0x00;
1096                 cmd.args[13] = 0x00;
1097                 cmd.args[14] = 0x00;
1098                 cmd.len = 15;
1099                 ret = tda10071_cmd_execute(priv, &cmd);
1100                 if (ret)
1101                         goto error;
1102
1103                 cmd.args[0] = CMD_MPEG_CONFIG;
1104                 cmd.args[1] = 0;
1105                 cmd.args[2] = priv->cfg.ts_mode;
1106                 cmd.args[3] = 0x00;
1107                 cmd.args[4] = 0x04;
1108                 cmd.args[5] = 0x00;
1109                 cmd.len = 6;
1110                 ret = tda10071_cmd_execute(priv, &cmd);
1111                 if (ret)
1112                         goto error;
1113
1114                 ret = tda10071_wr_reg_mask(priv, 0xf0, 0x01, 0x01);
1115                 if (ret)
1116                         goto error;
1117
1118                 cmd.args[0] = CMD_LNB_CONFIG;
1119                 cmd.args[1] = 0;
1120                 cmd.args[2] = 150;
1121                 cmd.args[3] = 3;
1122                 cmd.args[4] = 22;
1123                 cmd.args[5] = 1;
1124                 cmd.args[6] = 1;
1125                 cmd.args[7] = 30;
1126                 cmd.args[8] = 30;
1127                 cmd.args[9] = 30;
1128                 cmd.args[10] = 30;
1129                 cmd.len = 11;
1130                 ret = tda10071_cmd_execute(priv, &cmd);
1131                 if (ret)
1132                         goto error;
1133
1134                 cmd.args[0] = CMD_BER_CONTROL;
1135                 cmd.args[1] = 0;
1136                 cmd.args[2] = 14;
1137                 cmd.args[3] = 14;
1138                 cmd.len = 4;
1139                 ret = tda10071_cmd_execute(priv, &cmd);
1140                 if (ret)
1141                         goto error;
1142         }
1143
1144         return ret;
1145 error_release_firmware:
1146         release_firmware(fw);
1147 error:
1148         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1149         return ret;
1150 }
1151
1152 static int tda10071_sleep(struct dvb_frontend *fe)
1153 {
1154         struct tda10071_priv *priv = fe->demodulator_priv;
1155         struct tda10071_cmd cmd;
1156         int ret, i;
1157         struct tda10071_reg_val_mask tab[] = {
1158                 { 0xcd, 0x07, 0x07 },
1159                 { 0x80, 0x02, 0x02 },
1160                 { 0xcd, 0xc0, 0xc0 },
1161                 { 0xce, 0x1b, 0x1b },
1162                 { 0x9d, 0x01, 0x01 },
1163                 { 0x9d, 0x02, 0x02 },
1164                 { 0x9e, 0x01, 0x01 },
1165                 { 0x87, 0x80, 0x80 },
1166                 { 0xce, 0x08, 0x08 },
1167                 { 0xce, 0x10, 0x10 },
1168         };
1169
1170         if (!priv->warm) {
1171                 ret = -EFAULT;
1172                 goto error;
1173         }
1174
1175         cmd.args[0] = CMD_SET_SLEEP_MODE;
1176         cmd.args[1] = 0;
1177         cmd.args[2] = 1;
1178         cmd.len = 3;
1179         ret = tda10071_cmd_execute(priv, &cmd);
1180         if (ret)
1181                 goto error;
1182
1183         for (i = 0; i < ARRAY_SIZE(tab); i++) {
1184                 ret = tda10071_wr_reg_mask(priv, tab[i].reg, tab[i].val,
1185                         tab[i].mask);
1186                 if (ret)
1187                         goto error;
1188         }
1189
1190         return ret;
1191 error:
1192         dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
1193         return ret;
1194 }
1195
1196 static int tda10071_get_tune_settings(struct dvb_frontend *fe,
1197         struct dvb_frontend_tune_settings *s)
1198 {
1199         s->min_delay_ms = 8000;
1200         s->step_size = 0;
1201         s->max_drift = 0;
1202
1203         return 0;
1204 }
1205
1206 static void tda10071_release(struct dvb_frontend *fe)
1207 {
1208         struct tda10071_priv *priv = fe->demodulator_priv;
1209         kfree(priv);
1210 }
1211
1212 struct dvb_frontend *tda10071_attach(const struct tda10071_config *config,
1213         struct i2c_adapter *i2c)
1214 {
1215         int ret;
1216         struct tda10071_priv *priv = NULL;
1217         u8 tmp;
1218
1219         /* allocate memory for the internal priv */
1220         priv = kzalloc(sizeof(struct tda10071_priv), GFP_KERNEL);
1221         if (priv == NULL) {
1222                 ret = -ENOMEM;
1223                 goto error;
1224         }
1225
1226         /* make sure demod i2c address is specified */
1227         if (!config->demod_i2c_addr) {
1228                 dev_dbg(&i2c->dev, "%s: invalid demod i2c address!\n", __func__);
1229                 ret = -EINVAL;
1230                 goto error;
1231         }
1232
1233         /* make sure tuner i2c address is specified */
1234         if (!config->tuner_i2c_addr) {
1235                 dev_dbg(&i2c->dev, "%s: invalid tuner i2c address!\n", __func__);
1236                 ret = -EINVAL;
1237                 goto error;
1238         }
1239
1240         /* setup the priv */
1241         priv->i2c = i2c;
1242         memcpy(&priv->cfg, config, sizeof(struct tda10071_config));
1243
1244         /* chip ID */
1245         ret = tda10071_rd_reg(priv, 0xff, &tmp);
1246         if (ret || tmp != 0x0f)
1247                 goto error;
1248
1249         /* chip type */
1250         ret = tda10071_rd_reg(priv, 0xdd, &tmp);
1251         if (ret || tmp != 0x00)
1252                 goto error;
1253
1254         /* chip version */
1255         ret = tda10071_rd_reg(priv, 0xfe, &tmp);
1256         if (ret || tmp != 0x01)
1257                 goto error;
1258
1259         /* create dvb_frontend */
1260         memcpy(&priv->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops));
1261         priv->fe.demodulator_priv = priv;
1262
1263         return &priv->fe;
1264 error:
1265         dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
1266         kfree(priv);
1267         return NULL;
1268 }
1269 EXPORT_SYMBOL(tda10071_attach);
1270
1271 static struct dvb_frontend_ops tda10071_ops = {
1272         .delsys = { SYS_DVBS, SYS_DVBS2 },
1273         .info = {
1274                 .name = "NXP TDA10071",
1275                 .frequency_min = 950000,
1276                 .frequency_max = 2150000,
1277                 .frequency_tolerance = 5000,
1278                 .symbol_rate_min = 1000000,
1279                 .symbol_rate_max = 45000000,
1280                 .caps = FE_CAN_INVERSION_AUTO |
1281                         FE_CAN_FEC_1_2 |
1282                         FE_CAN_FEC_2_3 |
1283                         FE_CAN_FEC_3_4 |
1284                         FE_CAN_FEC_4_5 |
1285                         FE_CAN_FEC_5_6 |
1286                         FE_CAN_FEC_6_7 |
1287                         FE_CAN_FEC_7_8 |
1288                         FE_CAN_FEC_8_9 |
1289                         FE_CAN_FEC_AUTO |
1290                         FE_CAN_QPSK |
1291                         FE_CAN_RECOVER |
1292                         FE_CAN_2G_MODULATION
1293         },
1294
1295         .release = tda10071_release,
1296
1297         .get_tune_settings = tda10071_get_tune_settings,
1298
1299         .init = tda10071_init,
1300         .sleep = tda10071_sleep,
1301
1302         .set_frontend = tda10071_set_frontend,
1303         .get_frontend = tda10071_get_frontend,
1304
1305         .read_status = tda10071_read_status,
1306         .read_snr = tda10071_read_snr,
1307         .read_signal_strength = tda10071_read_signal_strength,
1308         .read_ber = tda10071_read_ber,
1309         .read_ucblocks = tda10071_read_ucblocks,
1310
1311         .diseqc_send_master_cmd = tda10071_diseqc_send_master_cmd,
1312         .diseqc_recv_slave_reply = tda10071_diseqc_recv_slave_reply,
1313         .diseqc_send_burst = tda10071_diseqc_send_burst,
1314
1315         .set_tone = tda10071_set_tone,
1316         .set_voltage = tda10071_set_voltage,
1317 };
1318
1319 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1320 MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver");
1321 MODULE_LICENSE("GPL");
1322 MODULE_FIRMWARE(TDA10071_FIRMWARE);