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Merge branch 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[deliverable/linux.git] / drivers / media / dvb-frontends / m88ds3103.c
1 /*
2 * Montage Technology M88DS3103/M88RS6000 demodulator driver
3 *
4 * Copyright (C) 2013 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
17 #include "m88ds3103_priv.h"
18
19 static struct dvb_frontend_ops m88ds3103_ops;
20
21 /* write single register with mask */
22 static int m88ds3103_update_bits(struct m88ds3103_dev *dev,
23 u8 reg, u8 mask, u8 val)
24 {
25 int ret;
26 u8 tmp;
27
28 /* no need for read if whole reg is written */
29 if (mask != 0xff) {
30 ret = regmap_bulk_read(dev->regmap, reg, &tmp, 1);
31 if (ret)
32 return ret;
33
34 val &= mask;
35 tmp &= ~mask;
36 val |= tmp;
37 }
38
39 return regmap_bulk_write(dev->regmap, reg, &val, 1);
40 }
41
42 /* write reg val table using reg addr auto increment */
43 static int m88ds3103_wr_reg_val_tab(struct m88ds3103_dev *dev,
44 const struct m88ds3103_reg_val *tab, int tab_len)
45 {
46 struct i2c_client *client = dev->client;
47 int ret, i, j;
48 u8 buf[83];
49
50 dev_dbg(&client->dev, "tab_len=%d\n", tab_len);
51
52 if (tab_len > 86) {
53 ret = -EINVAL;
54 goto err;
55 }
56
57 for (i = 0, j = 0; i < tab_len; i++, j++) {
58 buf[j] = tab[i].val;
59
60 if (i == tab_len - 1 || tab[i].reg != tab[i + 1].reg - 1 ||
61 !((j + 1) % (dev->cfg->i2c_wr_max - 1))) {
62 ret = regmap_bulk_write(dev->regmap, tab[i].reg - j, buf, j + 1);
63 if (ret)
64 goto err;
65
66 j = -1;
67 }
68 }
69
70 return 0;
71 err:
72 dev_dbg(&client->dev, "failed=%d\n", ret);
73 return ret;
74 }
75
76 /*
77 * Get the demodulator AGC PWM voltage setting supplied to the tuner.
78 */
79 int m88ds3103_get_agc_pwm(struct dvb_frontend *fe, u8 *_agc_pwm)
80 {
81 struct m88ds3103_dev *dev = fe->demodulator_priv;
82 unsigned tmp;
83 int ret;
84
85 ret = regmap_read(dev->regmap, 0x3f, &tmp);
86 if (ret == 0)
87 *_agc_pwm = tmp;
88 return ret;
89 }
90 EXPORT_SYMBOL(m88ds3103_get_agc_pwm);
91
92 static int m88ds3103_read_status(struct dvb_frontend *fe,
93 enum fe_status *status)
94 {
95 struct m88ds3103_dev *dev = fe->demodulator_priv;
96 struct i2c_client *client = dev->client;
97 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
98 int ret, i, itmp;
99 unsigned int utmp;
100 u8 buf[3];
101
102 *status = 0;
103
104 if (!dev->warm) {
105 ret = -EAGAIN;
106 goto err;
107 }
108
109 switch (c->delivery_system) {
110 case SYS_DVBS:
111 ret = regmap_read(dev->regmap, 0xd1, &utmp);
112 if (ret)
113 goto err;
114
115 if ((utmp & 0x07) == 0x07)
116 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
117 FE_HAS_VITERBI | FE_HAS_SYNC |
118 FE_HAS_LOCK;
119 break;
120 case SYS_DVBS2:
121 ret = regmap_read(dev->regmap, 0x0d, &utmp);
122 if (ret)
123 goto err;
124
125 if ((utmp & 0x8f) == 0x8f)
126 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
127 FE_HAS_VITERBI | FE_HAS_SYNC |
128 FE_HAS_LOCK;
129 break;
130 default:
131 dev_dbg(&client->dev, "invalid delivery_system\n");
132 ret = -EINVAL;
133 goto err;
134 }
135
136 dev->fe_status = *status;
137 dev_dbg(&client->dev, "lock=%02x status=%02x\n", utmp, *status);
138
139 /* CNR */
140 if (dev->fe_status & FE_HAS_VITERBI) {
141 unsigned int cnr, noise, signal, noise_tot, signal_tot;
142
143 cnr = 0;
144 /* more iterations for more accurate estimation */
145 #define M88DS3103_SNR_ITERATIONS 3
146
147 switch (c->delivery_system) {
148 case SYS_DVBS:
149 itmp = 0;
150
151 for (i = 0; i < M88DS3103_SNR_ITERATIONS; i++) {
152 ret = regmap_read(dev->regmap, 0xff, &utmp);
153 if (ret)
154 goto err;
155
156 itmp += utmp;
157 }
158
159 /* use of single register limits max value to 15 dB */
160 /* SNR(X) dB = 10 * ln(X) / ln(10) dB */
161 itmp = DIV_ROUND_CLOSEST(itmp, 8 * M88DS3103_SNR_ITERATIONS);
162 if (itmp)
163 cnr = div_u64((u64) 10000 * intlog2(itmp), intlog2(10));
164 break;
165 case SYS_DVBS2:
166 noise_tot = 0;
167 signal_tot = 0;
168
169 for (i = 0; i < M88DS3103_SNR_ITERATIONS; i++) {
170 ret = regmap_bulk_read(dev->regmap, 0x8c, buf, 3);
171 if (ret)
172 goto err;
173
174 noise = buf[1] << 6; /* [13:6] */
175 noise |= buf[0] & 0x3f; /* [5:0] */
176 noise >>= 2;
177 signal = buf[2] * buf[2];
178 signal >>= 1;
179
180 noise_tot += noise;
181 signal_tot += signal;
182 }
183
184 noise = noise_tot / M88DS3103_SNR_ITERATIONS;
185 signal = signal_tot / M88DS3103_SNR_ITERATIONS;
186
187 /* SNR(X) dB = 10 * log10(X) dB */
188 if (signal > noise) {
189 itmp = signal / noise;
190 cnr = div_u64((u64) 10000 * intlog10(itmp), (1 << 24));
191 }
192 break;
193 default:
194 dev_dbg(&client->dev, "invalid delivery_system\n");
195 ret = -EINVAL;
196 goto err;
197 }
198
199 if (cnr) {
200 c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
201 c->cnr.stat[0].svalue = cnr;
202 } else {
203 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
204 }
205 } else {
206 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
207 }
208
209 /* BER */
210 if (dev->fe_status & FE_HAS_LOCK) {
211 unsigned int utmp, post_bit_error, post_bit_count;
212
213 switch (c->delivery_system) {
214 case SYS_DVBS:
215 ret = regmap_write(dev->regmap, 0xf9, 0x04);
216 if (ret)
217 goto err;
218
219 ret = regmap_read(dev->regmap, 0xf8, &utmp);
220 if (ret)
221 goto err;
222
223 /* measurement ready? */
224 if (!(utmp & 0x10)) {
225 ret = regmap_bulk_read(dev->regmap, 0xf6, buf, 2);
226 if (ret)
227 goto err;
228
229 post_bit_error = buf[1] << 8 | buf[0] << 0;
230 post_bit_count = 0x800000;
231 dev->post_bit_error += post_bit_error;
232 dev->post_bit_count += post_bit_count;
233 dev->dvbv3_ber = post_bit_error;
234
235 /* restart measurement */
236 utmp |= 0x10;
237 ret = regmap_write(dev->regmap, 0xf8, utmp);
238 if (ret)
239 goto err;
240 }
241 break;
242 case SYS_DVBS2:
243 ret = regmap_bulk_read(dev->regmap, 0xd5, buf, 3);
244 if (ret)
245 goto err;
246
247 utmp = buf[2] << 16 | buf[1] << 8 | buf[0] << 0;
248
249 /* enough data? */
250 if (utmp > 4000) {
251 ret = regmap_bulk_read(dev->regmap, 0xf7, buf, 2);
252 if (ret)
253 goto err;
254
255 post_bit_error = buf[1] << 8 | buf[0] << 0;
256 post_bit_count = 32 * utmp; /* TODO: FEC */
257 dev->post_bit_error += post_bit_error;
258 dev->post_bit_count += post_bit_count;
259 dev->dvbv3_ber = post_bit_error;
260
261 /* restart measurement */
262 ret = regmap_write(dev->regmap, 0xd1, 0x01);
263 if (ret)
264 goto err;
265
266 ret = regmap_write(dev->regmap, 0xf9, 0x01);
267 if (ret)
268 goto err;
269
270 ret = regmap_write(dev->regmap, 0xf9, 0x00);
271 if (ret)
272 goto err;
273
274 ret = regmap_write(dev->regmap, 0xd1, 0x00);
275 if (ret)
276 goto err;
277 }
278 break;
279 default:
280 dev_dbg(&client->dev, "invalid delivery_system\n");
281 ret = -EINVAL;
282 goto err;
283 }
284
285 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
286 c->post_bit_error.stat[0].uvalue = dev->post_bit_error;
287 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
288 c->post_bit_count.stat[0].uvalue = dev->post_bit_count;
289 } else {
290 c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
291 c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
292 }
293
294 return 0;
295 err:
296 dev_dbg(&client->dev, "failed=%d\n", ret);
297 return ret;
298 }
299
300 static int m88ds3103_set_frontend(struct dvb_frontend *fe)
301 {
302 struct m88ds3103_dev *dev = fe->demodulator_priv;
303 struct i2c_client *client = dev->client;
304 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
305 int ret, len;
306 const struct m88ds3103_reg_val *init;
307 u8 u8tmp, u8tmp1 = 0, u8tmp2 = 0; /* silence compiler warning */
308 u8 buf[3];
309 u16 u16tmp;
310 u32 tuner_frequency_khz, target_mclk;
311 s32 s32tmp;
312
313 dev_dbg(&client->dev,
314 "delivery_system=%d modulation=%d frequency=%u symbol_rate=%d inversion=%d pilot=%d rolloff=%d\n",
315 c->delivery_system, c->modulation, c->frequency, c->symbol_rate,
316 c->inversion, c->pilot, c->rolloff);
317
318 if (!dev->warm) {
319 ret = -EAGAIN;
320 goto err;
321 }
322
323 /* reset */
324 ret = regmap_write(dev->regmap, 0x07, 0x80);
325 if (ret)
326 goto err;
327
328 ret = regmap_write(dev->regmap, 0x07, 0x00);
329 if (ret)
330 goto err;
331
332 /* Disable demod clock path */
333 if (dev->chip_id == M88RS6000_CHIP_ID) {
334 ret = regmap_write(dev->regmap, 0x06, 0xe0);
335 if (ret)
336 goto err;
337 }
338
339 /* program tuner */
340 if (fe->ops.tuner_ops.set_params) {
341 ret = fe->ops.tuner_ops.set_params(fe);
342 if (ret)
343 goto err;
344 }
345
346 if (fe->ops.tuner_ops.get_frequency) {
347 ret = fe->ops.tuner_ops.get_frequency(fe, &tuner_frequency_khz);
348 if (ret)
349 goto err;
350 } else {
351 /*
352 * Use nominal target frequency as tuner driver does not provide
353 * actual frequency used. Carrier offset calculation is not
354 * valid.
355 */
356 tuner_frequency_khz = c->frequency;
357 }
358
359 /* select M88RS6000 demod main mclk and ts mclk from tuner die. */
360 if (dev->chip_id == M88RS6000_CHIP_ID) {
361 if (c->symbol_rate > 45010000)
362 dev->mclk = 110250000;
363 else
364 dev->mclk = 96000000;
365
366 if (c->delivery_system == SYS_DVBS)
367 target_mclk = 96000000;
368 else
369 target_mclk = 144000000;
370
371 /* Enable demod clock path */
372 ret = regmap_write(dev->regmap, 0x06, 0x00);
373 if (ret)
374 goto err;
375 usleep_range(10000, 20000);
376 } else {
377 /* set M88DS3103 mclk and ts mclk. */
378 dev->mclk = 96000000;
379
380 switch (dev->cfg->ts_mode) {
381 case M88DS3103_TS_SERIAL:
382 case M88DS3103_TS_SERIAL_D7:
383 target_mclk = dev->cfg->ts_clk;
384 break;
385 case M88DS3103_TS_PARALLEL:
386 case M88DS3103_TS_CI:
387 if (c->delivery_system == SYS_DVBS)
388 target_mclk = 96000000;
389 else {
390 if (c->symbol_rate < 18000000)
391 target_mclk = 96000000;
392 else if (c->symbol_rate < 28000000)
393 target_mclk = 144000000;
394 else
395 target_mclk = 192000000;
396 }
397 break;
398 default:
399 dev_dbg(&client->dev, "invalid ts_mode\n");
400 ret = -EINVAL;
401 goto err;
402 }
403
404 switch (target_mclk) {
405 case 96000000:
406 u8tmp1 = 0x02; /* 0b10 */
407 u8tmp2 = 0x01; /* 0b01 */
408 break;
409 case 144000000:
410 u8tmp1 = 0x00; /* 0b00 */
411 u8tmp2 = 0x01; /* 0b01 */
412 break;
413 case 192000000:
414 u8tmp1 = 0x03; /* 0b11 */
415 u8tmp2 = 0x00; /* 0b00 */
416 break;
417 }
418 ret = m88ds3103_update_bits(dev, 0x22, 0xc0, u8tmp1 << 6);
419 if (ret)
420 goto err;
421 ret = m88ds3103_update_bits(dev, 0x24, 0xc0, u8tmp2 << 6);
422 if (ret)
423 goto err;
424 }
425
426 ret = regmap_write(dev->regmap, 0xb2, 0x01);
427 if (ret)
428 goto err;
429
430 ret = regmap_write(dev->regmap, 0x00, 0x01);
431 if (ret)
432 goto err;
433
434 switch (c->delivery_system) {
435 case SYS_DVBS:
436 if (dev->chip_id == M88RS6000_CHIP_ID) {
437 len = ARRAY_SIZE(m88rs6000_dvbs_init_reg_vals);
438 init = m88rs6000_dvbs_init_reg_vals;
439 } else {
440 len = ARRAY_SIZE(m88ds3103_dvbs_init_reg_vals);
441 init = m88ds3103_dvbs_init_reg_vals;
442 }
443 break;
444 case SYS_DVBS2:
445 if (dev->chip_id == M88RS6000_CHIP_ID) {
446 len = ARRAY_SIZE(m88rs6000_dvbs2_init_reg_vals);
447 init = m88rs6000_dvbs2_init_reg_vals;
448 } else {
449 len = ARRAY_SIZE(m88ds3103_dvbs2_init_reg_vals);
450 init = m88ds3103_dvbs2_init_reg_vals;
451 }
452 break;
453 default:
454 dev_dbg(&client->dev, "invalid delivery_system\n");
455 ret = -EINVAL;
456 goto err;
457 }
458
459 /* program init table */
460 if (c->delivery_system != dev->delivery_system) {
461 ret = m88ds3103_wr_reg_val_tab(dev, init, len);
462 if (ret)
463 goto err;
464 }
465
466 if (dev->chip_id == M88RS6000_CHIP_ID) {
467 if (c->delivery_system == SYS_DVBS2 &&
468 c->symbol_rate <= 5000000) {
469 ret = regmap_write(dev->regmap, 0xc0, 0x04);
470 if (ret)
471 goto err;
472 buf[0] = 0x09;
473 buf[1] = 0x22;
474 buf[2] = 0x88;
475 ret = regmap_bulk_write(dev->regmap, 0x8a, buf, 3);
476 if (ret)
477 goto err;
478 }
479 ret = m88ds3103_update_bits(dev, 0x9d, 0x08, 0x08);
480 if (ret)
481 goto err;
482 ret = regmap_write(dev->regmap, 0xf1, 0x01);
483 if (ret)
484 goto err;
485 ret = m88ds3103_update_bits(dev, 0x30, 0x80, 0x80);
486 if (ret)
487 goto err;
488 }
489
490 switch (dev->cfg->ts_mode) {
491 case M88DS3103_TS_SERIAL:
492 u8tmp1 = 0x00;
493 u8tmp = 0x06;
494 break;
495 case M88DS3103_TS_SERIAL_D7:
496 u8tmp1 = 0x20;
497 u8tmp = 0x06;
498 break;
499 case M88DS3103_TS_PARALLEL:
500 u8tmp = 0x02;
501 break;
502 case M88DS3103_TS_CI:
503 u8tmp = 0x03;
504 break;
505 default:
506 dev_dbg(&client->dev, "invalid ts_mode\n");
507 ret = -EINVAL;
508 goto err;
509 }
510
511 if (dev->cfg->ts_clk_pol)
512 u8tmp |= 0x40;
513
514 /* TS mode */
515 ret = regmap_write(dev->regmap, 0xfd, u8tmp);
516 if (ret)
517 goto err;
518
519 switch (dev->cfg->ts_mode) {
520 case M88DS3103_TS_SERIAL:
521 case M88DS3103_TS_SERIAL_D7:
522 ret = m88ds3103_update_bits(dev, 0x29, 0x20, u8tmp1);
523 if (ret)
524 goto err;
525 u16tmp = 0;
526 u8tmp1 = 0x3f;
527 u8tmp2 = 0x3f;
528 break;
529 default:
530 u16tmp = DIV_ROUND_UP(target_mclk, dev->cfg->ts_clk);
531 u8tmp1 = u16tmp / 2 - 1;
532 u8tmp2 = DIV_ROUND_UP(u16tmp, 2) - 1;
533 }
534
535 dev_dbg(&client->dev, "target_mclk=%u ts_clk=%u ts_clk_divide_ratio=%u\n",
536 target_mclk, dev->cfg->ts_clk, u16tmp);
537
538 /* u8tmp1[5:2] => fe[3:0], u8tmp1[1:0] => ea[7:6] */
539 /* u8tmp2[5:0] => ea[5:0] */
540 u8tmp = (u8tmp1 >> 2) & 0x0f;
541 ret = regmap_update_bits(dev->regmap, 0xfe, 0x0f, u8tmp);
542 if (ret)
543 goto err;
544 u8tmp = ((u8tmp1 & 0x03) << 6) | u8tmp2 >> 0;
545 ret = regmap_write(dev->regmap, 0xea, u8tmp);
546 if (ret)
547 goto err;
548
549 if (c->symbol_rate <= 3000000)
550 u8tmp = 0x20;
551 else if (c->symbol_rate <= 10000000)
552 u8tmp = 0x10;
553 else
554 u8tmp = 0x06;
555
556 ret = regmap_write(dev->regmap, 0xc3, 0x08);
557 if (ret)
558 goto err;
559
560 ret = regmap_write(dev->regmap, 0xc8, u8tmp);
561 if (ret)
562 goto err;
563
564 ret = regmap_write(dev->regmap, 0xc4, 0x08);
565 if (ret)
566 goto err;
567
568 ret = regmap_write(dev->regmap, 0xc7, 0x00);
569 if (ret)
570 goto err;
571
572 u16tmp = DIV_ROUND_CLOSEST_ULL((u64)c->symbol_rate * 0x10000, dev->mclk);
573 buf[0] = (u16tmp >> 0) & 0xff;
574 buf[1] = (u16tmp >> 8) & 0xff;
575 ret = regmap_bulk_write(dev->regmap, 0x61, buf, 2);
576 if (ret)
577 goto err;
578
579 ret = m88ds3103_update_bits(dev, 0x4d, 0x02, dev->cfg->spec_inv << 1);
580 if (ret)
581 goto err;
582
583 ret = m88ds3103_update_bits(dev, 0x30, 0x10, dev->cfg->agc_inv << 4);
584 if (ret)
585 goto err;
586
587 ret = regmap_write(dev->regmap, 0x33, dev->cfg->agc);
588 if (ret)
589 goto err;
590
591 dev_dbg(&client->dev, "carrier offset=%d\n",
592 (tuner_frequency_khz - c->frequency));
593
594 /* Use 32-bit calc as there is no s64 version of DIV_ROUND_CLOSEST() */
595 s32tmp = 0x10000 * (tuner_frequency_khz - c->frequency);
596 s32tmp = DIV_ROUND_CLOSEST(s32tmp, dev->mclk / 1000);
597 buf[0] = (s32tmp >> 0) & 0xff;
598 buf[1] = (s32tmp >> 8) & 0xff;
599 ret = regmap_bulk_write(dev->regmap, 0x5e, buf, 2);
600 if (ret)
601 goto err;
602
603 ret = regmap_write(dev->regmap, 0x00, 0x00);
604 if (ret)
605 goto err;
606
607 ret = regmap_write(dev->regmap, 0xb2, 0x00);
608 if (ret)
609 goto err;
610
611 dev->delivery_system = c->delivery_system;
612
613 return 0;
614 err:
615 dev_dbg(&client->dev, "failed=%d\n", ret);
616 return ret;
617 }
618
619 static int m88ds3103_init(struct dvb_frontend *fe)
620 {
621 struct m88ds3103_dev *dev = fe->demodulator_priv;
622 struct i2c_client *client = dev->client;
623 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
624 int ret, len, rem;
625 unsigned int utmp;
626 const struct firmware *firmware;
627 const char *name;
628
629 dev_dbg(&client->dev, "\n");
630
631 /* set cold state by default */
632 dev->warm = false;
633
634 /* wake up device from sleep */
635 ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x01);
636 if (ret)
637 goto err;
638 ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x00);
639 if (ret)
640 goto err;
641 ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x00);
642 if (ret)
643 goto err;
644
645 /* firmware status */
646 ret = regmap_read(dev->regmap, 0xb9, &utmp);
647 if (ret)
648 goto err;
649
650 dev_dbg(&client->dev, "firmware=%02x\n", utmp);
651
652 if (utmp)
653 goto warm;
654
655 /* global reset, global diseqc reset, golbal fec reset */
656 ret = regmap_write(dev->regmap, 0x07, 0xe0);
657 if (ret)
658 goto err;
659 ret = regmap_write(dev->regmap, 0x07, 0x00);
660 if (ret)
661 goto err;
662
663 /* cold state - try to download firmware */
664 dev_info(&client->dev, "found a '%s' in cold state\n",
665 m88ds3103_ops.info.name);
666
667 if (dev->chip_id == M88RS6000_CHIP_ID)
668 name = M88RS6000_FIRMWARE;
669 else
670 name = M88DS3103_FIRMWARE;
671 /* request the firmware, this will block and timeout */
672 ret = request_firmware(&firmware, name, &client->dev);
673 if (ret) {
674 dev_err(&client->dev, "firmware file '%s' not found\n", name);
675 goto err;
676 }
677
678 dev_info(&client->dev, "downloading firmware from file '%s'\n", name);
679
680 ret = regmap_write(dev->regmap, 0xb2, 0x01);
681 if (ret)
682 goto err_release_firmware;
683
684 for (rem = firmware->size; rem > 0; rem -= (dev->cfg->i2c_wr_max - 1)) {
685 len = min(dev->cfg->i2c_wr_max - 1, rem);
686 ret = regmap_bulk_write(dev->regmap, 0xb0,
687 &firmware->data[firmware->size - rem],
688 len);
689 if (ret) {
690 dev_err(&client->dev, "firmware download failed %d\n",
691 ret);
692 goto err_release_firmware;
693 }
694 }
695
696 ret = regmap_write(dev->regmap, 0xb2, 0x00);
697 if (ret)
698 goto err_release_firmware;
699
700 release_firmware(firmware);
701
702 ret = regmap_read(dev->regmap, 0xb9, &utmp);
703 if (ret)
704 goto err;
705
706 if (!utmp) {
707 ret = -EINVAL;
708 dev_info(&client->dev, "firmware did not run\n");
709 goto err;
710 }
711
712 dev_info(&client->dev, "found a '%s' in warm state\n",
713 m88ds3103_ops.info.name);
714 dev_info(&client->dev, "firmware version: %X.%X\n",
715 (utmp >> 4) & 0xf, (utmp >> 0 & 0xf));
716
717 warm:
718 /* warm state */
719 dev->warm = true;
720
721 /* init stats here in order signal app which stats are supported */
722 c->cnr.len = 1;
723 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
724 c->post_bit_error.len = 1;
725 c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
726 c->post_bit_count.len = 1;
727 c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
728
729 return 0;
730 err_release_firmware:
731 release_firmware(firmware);
732 err:
733 dev_dbg(&client->dev, "failed=%d\n", ret);
734 return ret;
735 }
736
737 static int m88ds3103_sleep(struct dvb_frontend *fe)
738 {
739 struct m88ds3103_dev *dev = fe->demodulator_priv;
740 struct i2c_client *client = dev->client;
741 int ret;
742 unsigned int utmp;
743
744 dev_dbg(&client->dev, "\n");
745
746 dev->fe_status = 0;
747 dev->delivery_system = SYS_UNDEFINED;
748
749 /* TS Hi-Z */
750 if (dev->chip_id == M88RS6000_CHIP_ID)
751 utmp = 0x29;
752 else
753 utmp = 0x27;
754 ret = m88ds3103_update_bits(dev, utmp, 0x01, 0x00);
755 if (ret)
756 goto err;
757
758 /* sleep */
759 ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00);
760 if (ret)
761 goto err;
762 ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01);
763 if (ret)
764 goto err;
765 ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10);
766 if (ret)
767 goto err;
768
769 return 0;
770 err:
771 dev_dbg(&client->dev, "failed=%d\n", ret);
772 return ret;
773 }
774
775 static int m88ds3103_get_frontend(struct dvb_frontend *fe,
776 struct dtv_frontend_properties *c)
777 {
778 struct m88ds3103_dev *dev = fe->demodulator_priv;
779 struct i2c_client *client = dev->client;
780 int ret;
781 u8 buf[3];
782
783 dev_dbg(&client->dev, "\n");
784
785 if (!dev->warm || !(dev->fe_status & FE_HAS_LOCK)) {
786 ret = 0;
787 goto err;
788 }
789
790 switch (c->delivery_system) {
791 case SYS_DVBS:
792 ret = regmap_bulk_read(dev->regmap, 0xe0, &buf[0], 1);
793 if (ret)
794 goto err;
795
796 ret = regmap_bulk_read(dev->regmap, 0xe6, &buf[1], 1);
797 if (ret)
798 goto err;
799
800 switch ((buf[0] >> 2) & 0x01) {
801 case 0:
802 c->inversion = INVERSION_OFF;
803 break;
804 case 1:
805 c->inversion = INVERSION_ON;
806 break;
807 }
808
809 switch ((buf[1] >> 5) & 0x07) {
810 case 0:
811 c->fec_inner = FEC_7_8;
812 break;
813 case 1:
814 c->fec_inner = FEC_5_6;
815 break;
816 case 2:
817 c->fec_inner = FEC_3_4;
818 break;
819 case 3:
820 c->fec_inner = FEC_2_3;
821 break;
822 case 4:
823 c->fec_inner = FEC_1_2;
824 break;
825 default:
826 dev_dbg(&client->dev, "invalid fec_inner\n");
827 }
828
829 c->modulation = QPSK;
830
831 break;
832 case SYS_DVBS2:
833 ret = regmap_bulk_read(dev->regmap, 0x7e, &buf[0], 1);
834 if (ret)
835 goto err;
836
837 ret = regmap_bulk_read(dev->regmap, 0x89, &buf[1], 1);
838 if (ret)
839 goto err;
840
841 ret = regmap_bulk_read(dev->regmap, 0xf2, &buf[2], 1);
842 if (ret)
843 goto err;
844
845 switch ((buf[0] >> 0) & 0x0f) {
846 case 2:
847 c->fec_inner = FEC_2_5;
848 break;
849 case 3:
850 c->fec_inner = FEC_1_2;
851 break;
852 case 4:
853 c->fec_inner = FEC_3_5;
854 break;
855 case 5:
856 c->fec_inner = FEC_2_3;
857 break;
858 case 6:
859 c->fec_inner = FEC_3_4;
860 break;
861 case 7:
862 c->fec_inner = FEC_4_5;
863 break;
864 case 8:
865 c->fec_inner = FEC_5_6;
866 break;
867 case 9:
868 c->fec_inner = FEC_8_9;
869 break;
870 case 10:
871 c->fec_inner = FEC_9_10;
872 break;
873 default:
874 dev_dbg(&client->dev, "invalid fec_inner\n");
875 }
876
877 switch ((buf[0] >> 5) & 0x01) {
878 case 0:
879 c->pilot = PILOT_OFF;
880 break;
881 case 1:
882 c->pilot = PILOT_ON;
883 break;
884 }
885
886 switch ((buf[0] >> 6) & 0x07) {
887 case 0:
888 c->modulation = QPSK;
889 break;
890 case 1:
891 c->modulation = PSK_8;
892 break;
893 case 2:
894 c->modulation = APSK_16;
895 break;
896 case 3:
897 c->modulation = APSK_32;
898 break;
899 default:
900 dev_dbg(&client->dev, "invalid modulation\n");
901 }
902
903 switch ((buf[1] >> 7) & 0x01) {
904 case 0:
905 c->inversion = INVERSION_OFF;
906 break;
907 case 1:
908 c->inversion = INVERSION_ON;
909 break;
910 }
911
912 switch ((buf[2] >> 0) & 0x03) {
913 case 0:
914 c->rolloff = ROLLOFF_35;
915 break;
916 case 1:
917 c->rolloff = ROLLOFF_25;
918 break;
919 case 2:
920 c->rolloff = ROLLOFF_20;
921 break;
922 default:
923 dev_dbg(&client->dev, "invalid rolloff\n");
924 }
925 break;
926 default:
927 dev_dbg(&client->dev, "invalid delivery_system\n");
928 ret = -EINVAL;
929 goto err;
930 }
931
932 ret = regmap_bulk_read(dev->regmap, 0x6d, buf, 2);
933 if (ret)
934 goto err;
935
936 c->symbol_rate = DIV_ROUND_CLOSEST_ULL((u64)(buf[1] << 8 | buf[0] << 0) * dev->mclk, 0x10000);
937
938 return 0;
939 err:
940 dev_dbg(&client->dev, "failed=%d\n", ret);
941 return ret;
942 }
943
944 static int m88ds3103_read_snr(struct dvb_frontend *fe, u16 *snr)
945 {
946 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
947
948 if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL)
949 *snr = div_s64(c->cnr.stat[0].svalue, 100);
950 else
951 *snr = 0;
952
953 return 0;
954 }
955
956 static int m88ds3103_read_ber(struct dvb_frontend *fe, u32 *ber)
957 {
958 struct m88ds3103_dev *dev = fe->demodulator_priv;
959
960 *ber = dev->dvbv3_ber;
961
962 return 0;
963 }
964
965 static int m88ds3103_set_tone(struct dvb_frontend *fe,
966 enum fe_sec_tone_mode fe_sec_tone_mode)
967 {
968 struct m88ds3103_dev *dev = fe->demodulator_priv;
969 struct i2c_client *client = dev->client;
970 int ret;
971 unsigned int utmp, tone, reg_a1_mask;
972
973 dev_dbg(&client->dev, "fe_sec_tone_mode=%d\n", fe_sec_tone_mode);
974
975 if (!dev->warm) {
976 ret = -EAGAIN;
977 goto err;
978 }
979
980 switch (fe_sec_tone_mode) {
981 case SEC_TONE_ON:
982 tone = 0;
983 reg_a1_mask = 0x47;
984 break;
985 case SEC_TONE_OFF:
986 tone = 1;
987 reg_a1_mask = 0x00;
988 break;
989 default:
990 dev_dbg(&client->dev, "invalid fe_sec_tone_mode\n");
991 ret = -EINVAL;
992 goto err;
993 }
994
995 utmp = tone << 7 | dev->cfg->envelope_mode << 5;
996 ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp);
997 if (ret)
998 goto err;
999
1000 utmp = 1 << 2;
1001 ret = m88ds3103_update_bits(dev, 0xa1, reg_a1_mask, utmp);
1002 if (ret)
1003 goto err;
1004
1005 return 0;
1006 err:
1007 dev_dbg(&client->dev, "failed=%d\n", ret);
1008 return ret;
1009 }
1010
1011 static int m88ds3103_set_voltage(struct dvb_frontend *fe,
1012 enum fe_sec_voltage fe_sec_voltage)
1013 {
1014 struct m88ds3103_dev *dev = fe->demodulator_priv;
1015 struct i2c_client *client = dev->client;
1016 int ret;
1017 unsigned int utmp;
1018 bool voltage_sel, voltage_dis;
1019
1020 dev_dbg(&client->dev, "fe_sec_voltage=%d\n", fe_sec_voltage);
1021
1022 if (!dev->warm) {
1023 ret = -EAGAIN;
1024 goto err;
1025 }
1026
1027 switch (fe_sec_voltage) {
1028 case SEC_VOLTAGE_18:
1029 voltage_sel = true;
1030 voltage_dis = false;
1031 break;
1032 case SEC_VOLTAGE_13:
1033 voltage_sel = false;
1034 voltage_dis = false;
1035 break;
1036 case SEC_VOLTAGE_OFF:
1037 voltage_sel = false;
1038 voltage_dis = true;
1039 break;
1040 default:
1041 dev_dbg(&client->dev, "invalid fe_sec_voltage\n");
1042 ret = -EINVAL;
1043 goto err;
1044 }
1045
1046 /* output pin polarity */
1047 voltage_sel ^= dev->cfg->lnb_hv_pol;
1048 voltage_dis ^= dev->cfg->lnb_en_pol;
1049
1050 utmp = voltage_dis << 1 | voltage_sel << 0;
1051 ret = m88ds3103_update_bits(dev, 0xa2, 0x03, utmp);
1052 if (ret)
1053 goto err;
1054
1055 return 0;
1056 err:
1057 dev_dbg(&client->dev, "failed=%d\n", ret);
1058 return ret;
1059 }
1060
1061 static int m88ds3103_diseqc_send_master_cmd(struct dvb_frontend *fe,
1062 struct dvb_diseqc_master_cmd *diseqc_cmd)
1063 {
1064 struct m88ds3103_dev *dev = fe->demodulator_priv;
1065 struct i2c_client *client = dev->client;
1066 int ret;
1067 unsigned int utmp;
1068 unsigned long timeout;
1069
1070 dev_dbg(&client->dev, "msg=%*ph\n",
1071 diseqc_cmd->msg_len, diseqc_cmd->msg);
1072
1073 if (!dev->warm) {
1074 ret = -EAGAIN;
1075 goto err;
1076 }
1077
1078 if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) {
1079 ret = -EINVAL;
1080 goto err;
1081 }
1082
1083 utmp = dev->cfg->envelope_mode << 5;
1084 ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp);
1085 if (ret)
1086 goto err;
1087
1088 ret = regmap_bulk_write(dev->regmap, 0xa3, diseqc_cmd->msg,
1089 diseqc_cmd->msg_len);
1090 if (ret)
1091 goto err;
1092
1093 ret = regmap_write(dev->regmap, 0xa1,
1094 (diseqc_cmd->msg_len - 1) << 3 | 0x07);
1095 if (ret)
1096 goto err;
1097
1098 /* wait DiSEqC TX ready */
1099 #define SEND_MASTER_CMD_TIMEOUT 120
1100 timeout = jiffies + msecs_to_jiffies(SEND_MASTER_CMD_TIMEOUT);
1101
1102 /* DiSEqC message period is 13.5 ms per byte */
1103 utmp = diseqc_cmd->msg_len * 13500;
1104 usleep_range(utmp - 4000, utmp);
1105
1106 for (utmp = 1; !time_after(jiffies, timeout) && utmp;) {
1107 ret = regmap_read(dev->regmap, 0xa1, &utmp);
1108 if (ret)
1109 goto err;
1110 utmp = (utmp >> 6) & 0x1;
1111 }
1112
1113 if (utmp == 0) {
1114 dev_dbg(&client->dev, "diseqc tx took %u ms\n",
1115 jiffies_to_msecs(jiffies) -
1116 (jiffies_to_msecs(timeout) - SEND_MASTER_CMD_TIMEOUT));
1117 } else {
1118 dev_dbg(&client->dev, "diseqc tx timeout\n");
1119
1120 ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40);
1121 if (ret)
1122 goto err;
1123 }
1124
1125 ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80);
1126 if (ret)
1127 goto err;
1128
1129 if (utmp == 1) {
1130 ret = -ETIMEDOUT;
1131 goto err;
1132 }
1133
1134 return 0;
1135 err:
1136 dev_dbg(&client->dev, "failed=%d\n", ret);
1137 return ret;
1138 }
1139
1140 static int m88ds3103_diseqc_send_burst(struct dvb_frontend *fe,
1141 enum fe_sec_mini_cmd fe_sec_mini_cmd)
1142 {
1143 struct m88ds3103_dev *dev = fe->demodulator_priv;
1144 struct i2c_client *client = dev->client;
1145 int ret;
1146 unsigned int utmp, burst;
1147 unsigned long timeout;
1148
1149 dev_dbg(&client->dev, "fe_sec_mini_cmd=%d\n", fe_sec_mini_cmd);
1150
1151 if (!dev->warm) {
1152 ret = -EAGAIN;
1153 goto err;
1154 }
1155
1156 utmp = dev->cfg->envelope_mode << 5;
1157 ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp);
1158 if (ret)
1159 goto err;
1160
1161 switch (fe_sec_mini_cmd) {
1162 case SEC_MINI_A:
1163 burst = 0x02;
1164 break;
1165 case SEC_MINI_B:
1166 burst = 0x01;
1167 break;
1168 default:
1169 dev_dbg(&client->dev, "invalid fe_sec_mini_cmd\n");
1170 ret = -EINVAL;
1171 goto err;
1172 }
1173
1174 ret = regmap_write(dev->regmap, 0xa1, burst);
1175 if (ret)
1176 goto err;
1177
1178 /* wait DiSEqC TX ready */
1179 #define SEND_BURST_TIMEOUT 40
1180 timeout = jiffies + msecs_to_jiffies(SEND_BURST_TIMEOUT);
1181
1182 /* DiSEqC ToneBurst period is 12.5 ms */
1183 usleep_range(8500, 12500);
1184
1185 for (utmp = 1; !time_after(jiffies, timeout) && utmp;) {
1186 ret = regmap_read(dev->regmap, 0xa1, &utmp);
1187 if (ret)
1188 goto err;
1189 utmp = (utmp >> 6) & 0x1;
1190 }
1191
1192 if (utmp == 0) {
1193 dev_dbg(&client->dev, "diseqc tx took %u ms\n",
1194 jiffies_to_msecs(jiffies) -
1195 (jiffies_to_msecs(timeout) - SEND_BURST_TIMEOUT));
1196 } else {
1197 dev_dbg(&client->dev, "diseqc tx timeout\n");
1198
1199 ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40);
1200 if (ret)
1201 goto err;
1202 }
1203
1204 ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80);
1205 if (ret)
1206 goto err;
1207
1208 if (utmp == 1) {
1209 ret = -ETIMEDOUT;
1210 goto err;
1211 }
1212
1213 return 0;
1214 err:
1215 dev_dbg(&client->dev, "failed=%d\n", ret);
1216 return ret;
1217 }
1218
1219 static int m88ds3103_get_tune_settings(struct dvb_frontend *fe,
1220 struct dvb_frontend_tune_settings *s)
1221 {
1222 s->min_delay_ms = 3000;
1223
1224 return 0;
1225 }
1226
1227 static void m88ds3103_release(struct dvb_frontend *fe)
1228 {
1229 struct m88ds3103_dev *dev = fe->demodulator_priv;
1230 struct i2c_client *client = dev->client;
1231
1232 i2c_unregister_device(client);
1233 }
1234
1235 static int m88ds3103_select(struct i2c_mux_core *muxc, u32 chan)
1236 {
1237 struct m88ds3103_dev *dev = i2c_mux_priv(muxc);
1238 struct i2c_client *client = dev->client;
1239 int ret;
1240 struct i2c_msg msg = {
1241 .addr = client->addr,
1242 .flags = 0,
1243 .len = 2,
1244 .buf = "\x03\x11",
1245 };
1246
1247 /* Open tuner I2C repeater for 1 xfer, closes automatically */
1248 ret = __i2c_transfer(client->adapter, &msg, 1);
1249 if (ret != 1) {
1250 dev_warn(&client->dev, "i2c wr failed=%d\n", ret);
1251 if (ret >= 0)
1252 ret = -EREMOTEIO;
1253 return ret;
1254 }
1255
1256 return 0;
1257 }
1258
1259 /*
1260 * XXX: That is wrapper to m88ds3103_probe() via driver core in order to provide
1261 * proper I2C client for legacy media attach binding.
1262 * New users must use I2C client binding directly!
1263 */
1264 struct dvb_frontend *m88ds3103_attach(const struct m88ds3103_config *cfg,
1265 struct i2c_adapter *i2c, struct i2c_adapter **tuner_i2c_adapter)
1266 {
1267 struct i2c_client *client;
1268 struct i2c_board_info board_info;
1269 struct m88ds3103_platform_data pdata;
1270
1271 pdata.clk = cfg->clock;
1272 pdata.i2c_wr_max = cfg->i2c_wr_max;
1273 pdata.ts_mode = cfg->ts_mode;
1274 pdata.ts_clk = cfg->ts_clk;
1275 pdata.ts_clk_pol = cfg->ts_clk_pol;
1276 pdata.spec_inv = cfg->spec_inv;
1277 pdata.agc = cfg->agc;
1278 pdata.agc_inv = cfg->agc_inv;
1279 pdata.clk_out = cfg->clock_out;
1280 pdata.envelope_mode = cfg->envelope_mode;
1281 pdata.lnb_hv_pol = cfg->lnb_hv_pol;
1282 pdata.lnb_en_pol = cfg->lnb_en_pol;
1283 pdata.attach_in_use = true;
1284
1285 memset(&board_info, 0, sizeof(board_info));
1286 strlcpy(board_info.type, "m88ds3103", I2C_NAME_SIZE);
1287 board_info.addr = cfg->i2c_addr;
1288 board_info.platform_data = &pdata;
1289 client = i2c_new_device(i2c, &board_info);
1290 if (!client || !client->dev.driver)
1291 return NULL;
1292
1293 *tuner_i2c_adapter = pdata.get_i2c_adapter(client);
1294 return pdata.get_dvb_frontend(client);
1295 }
1296 EXPORT_SYMBOL(m88ds3103_attach);
1297
1298 static struct dvb_frontend_ops m88ds3103_ops = {
1299 .delsys = {SYS_DVBS, SYS_DVBS2},
1300 .info = {
1301 .name = "Montage Technology M88DS3103",
1302 .frequency_min = 950000,
1303 .frequency_max = 2150000,
1304 .frequency_tolerance = 5000,
1305 .symbol_rate_min = 1000000,
1306 .symbol_rate_max = 45000000,
1307 .caps = FE_CAN_INVERSION_AUTO |
1308 FE_CAN_FEC_1_2 |
1309 FE_CAN_FEC_2_3 |
1310 FE_CAN_FEC_3_4 |
1311 FE_CAN_FEC_4_5 |
1312 FE_CAN_FEC_5_6 |
1313 FE_CAN_FEC_6_7 |
1314 FE_CAN_FEC_7_8 |
1315 FE_CAN_FEC_8_9 |
1316 FE_CAN_FEC_AUTO |
1317 FE_CAN_QPSK |
1318 FE_CAN_RECOVER |
1319 FE_CAN_2G_MODULATION
1320 },
1321
1322 .release = m88ds3103_release,
1323
1324 .get_tune_settings = m88ds3103_get_tune_settings,
1325
1326 .init = m88ds3103_init,
1327 .sleep = m88ds3103_sleep,
1328
1329 .set_frontend = m88ds3103_set_frontend,
1330 .get_frontend = m88ds3103_get_frontend,
1331
1332 .read_status = m88ds3103_read_status,
1333 .read_snr = m88ds3103_read_snr,
1334 .read_ber = m88ds3103_read_ber,
1335
1336 .diseqc_send_master_cmd = m88ds3103_diseqc_send_master_cmd,
1337 .diseqc_send_burst = m88ds3103_diseqc_send_burst,
1338
1339 .set_tone = m88ds3103_set_tone,
1340 .set_voltage = m88ds3103_set_voltage,
1341 };
1342
1343 static struct dvb_frontend *m88ds3103_get_dvb_frontend(struct i2c_client *client)
1344 {
1345 struct m88ds3103_dev *dev = i2c_get_clientdata(client);
1346
1347 dev_dbg(&client->dev, "\n");
1348
1349 return &dev->fe;
1350 }
1351
1352 static struct i2c_adapter *m88ds3103_get_i2c_adapter(struct i2c_client *client)
1353 {
1354 struct m88ds3103_dev *dev = i2c_get_clientdata(client);
1355
1356 dev_dbg(&client->dev, "\n");
1357
1358 return dev->muxc->adapter[0];
1359 }
1360
1361 static int m88ds3103_probe(struct i2c_client *client,
1362 const struct i2c_device_id *id)
1363 {
1364 struct m88ds3103_dev *dev;
1365 struct m88ds3103_platform_data *pdata = client->dev.platform_data;
1366 int ret;
1367 unsigned int utmp;
1368
1369 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1370 if (!dev) {
1371 ret = -ENOMEM;
1372 goto err;
1373 }
1374
1375 dev->client = client;
1376 dev->config.clock = pdata->clk;
1377 dev->config.i2c_wr_max = pdata->i2c_wr_max;
1378 dev->config.ts_mode = pdata->ts_mode;
1379 dev->config.ts_clk = pdata->ts_clk * 1000;
1380 dev->config.ts_clk_pol = pdata->ts_clk_pol;
1381 dev->config.spec_inv = pdata->spec_inv;
1382 dev->config.agc_inv = pdata->agc_inv;
1383 dev->config.clock_out = pdata->clk_out;
1384 dev->config.envelope_mode = pdata->envelope_mode;
1385 dev->config.agc = pdata->agc;
1386 dev->config.lnb_hv_pol = pdata->lnb_hv_pol;
1387 dev->config.lnb_en_pol = pdata->lnb_en_pol;
1388 dev->cfg = &dev->config;
1389 /* create regmap */
1390 dev->regmap_config.reg_bits = 8,
1391 dev->regmap_config.val_bits = 8,
1392 dev->regmap_config.lock_arg = dev,
1393 dev->regmap = devm_regmap_init_i2c(client, &dev->regmap_config);
1394 if (IS_ERR(dev->regmap)) {
1395 ret = PTR_ERR(dev->regmap);
1396 goto err_kfree;
1397 }
1398
1399 /* 0x00: chip id[6:0], 0x01: chip ver[7:0], 0x02: chip ver[15:8] */
1400 ret = regmap_read(dev->regmap, 0x00, &utmp);
1401 if (ret)
1402 goto err_kfree;
1403
1404 dev->chip_id = utmp >> 1;
1405 dev_dbg(&client->dev, "chip_id=%02x\n", dev->chip_id);
1406
1407 switch (dev->chip_id) {
1408 case M88RS6000_CHIP_ID:
1409 case M88DS3103_CHIP_ID:
1410 break;
1411 default:
1412 goto err_kfree;
1413 }
1414
1415 switch (dev->cfg->clock_out) {
1416 case M88DS3103_CLOCK_OUT_DISABLED:
1417 utmp = 0x80;
1418 break;
1419 case M88DS3103_CLOCK_OUT_ENABLED:
1420 utmp = 0x00;
1421 break;
1422 case M88DS3103_CLOCK_OUT_ENABLED_DIV2:
1423 utmp = 0x10;
1424 break;
1425 default:
1426 ret = -EINVAL;
1427 goto err_kfree;
1428 }
1429
1430 if (!pdata->ts_clk) {
1431 ret = -EINVAL;
1432 goto err_kfree;
1433 }
1434
1435 /* 0x29 register is defined differently for m88rs6000. */
1436 /* set internal tuner address to 0x21 */
1437 if (dev->chip_id == M88RS6000_CHIP_ID)
1438 utmp = 0x00;
1439
1440 ret = regmap_write(dev->regmap, 0x29, utmp);
1441 if (ret)
1442 goto err_kfree;
1443
1444 /* sleep */
1445 ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00);
1446 if (ret)
1447 goto err_kfree;
1448 ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01);
1449 if (ret)
1450 goto err_kfree;
1451 ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10);
1452 if (ret)
1453 goto err_kfree;
1454
1455 /* create mux i2c adapter for tuner */
1456 dev->muxc = i2c_mux_alloc(client->adapter, &client->dev, 1, 0, 0,
1457 m88ds3103_select, NULL);
1458 if (!dev->muxc) {
1459 ret = -ENOMEM;
1460 goto err_kfree;
1461 }
1462 dev->muxc->priv = dev;
1463 ret = i2c_mux_add_adapter(dev->muxc, 0, 0, 0);
1464 if (ret)
1465 goto err_kfree;
1466
1467 /* create dvb_frontend */
1468 memcpy(&dev->fe.ops, &m88ds3103_ops, sizeof(struct dvb_frontend_ops));
1469 if (dev->chip_id == M88RS6000_CHIP_ID)
1470 strncpy(dev->fe.ops.info.name, "Montage Technology M88RS6000",
1471 sizeof(dev->fe.ops.info.name));
1472 if (!pdata->attach_in_use)
1473 dev->fe.ops.release = NULL;
1474 dev->fe.demodulator_priv = dev;
1475 i2c_set_clientdata(client, dev);
1476
1477 /* setup callbacks */
1478 pdata->get_dvb_frontend = m88ds3103_get_dvb_frontend;
1479 pdata->get_i2c_adapter = m88ds3103_get_i2c_adapter;
1480 return 0;
1481 err_kfree:
1482 kfree(dev);
1483 err:
1484 dev_dbg(&client->dev, "failed=%d\n", ret);
1485 return ret;
1486 }
1487
1488 static int m88ds3103_remove(struct i2c_client *client)
1489 {
1490 struct m88ds3103_dev *dev = i2c_get_clientdata(client);
1491
1492 dev_dbg(&client->dev, "\n");
1493
1494 i2c_mux_del_adapters(dev->muxc);
1495
1496 kfree(dev);
1497 return 0;
1498 }
1499
1500 static const struct i2c_device_id m88ds3103_id_table[] = {
1501 {"m88ds3103", 0},
1502 {}
1503 };
1504 MODULE_DEVICE_TABLE(i2c, m88ds3103_id_table);
1505
1506 static struct i2c_driver m88ds3103_driver = {
1507 .driver = {
1508 .name = "m88ds3103",
1509 .suppress_bind_attrs = true,
1510 },
1511 .probe = m88ds3103_probe,
1512 .remove = m88ds3103_remove,
1513 .id_table = m88ds3103_id_table,
1514 };
1515
1516 module_i2c_driver(m88ds3103_driver);
1517
1518 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
1519 MODULE_DESCRIPTION("Montage Technology M88DS3103 DVB-S/S2 demodulator driver");
1520 MODULE_LICENSE("GPL");
1521 MODULE_FIRMWARE(M88DS3103_FIRMWARE);
1522 MODULE_FIRMWARE(M88RS6000_FIRMWARE);
Linux kernel - Deliverables
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