projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
media: uvcvideo: Add a quirk for Generalplus Technology Inc. 808 Camera
[linux-2.6-block.git] / drivers / media / dvb-frontends / mn88473.c
CommitLineData
dadb5bb4
AP		 1/*
2 * Panasonic MN88473 DVB-T/T2/C demodulator driver
3 *
4 * Copyright (C) 2014 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 "mn88473_priv.h"
18
dadb5bb4 19static int mn88473_get_tune_settings(struct dvb_frontend *fe,
b4c2c314 20 struct dvb_frontend_tune_settings *s)
dadb5bb4
AP		 21{
22 s->min_delay_ms = 1000;
23 return 0;
24}
25
26static int mn88473_set_frontend(struct dvb_frontend *fe)
27{
01b4be14
AP		 28 struct i2c_client *client = fe->demodulator_priv;
29 struct mn88473_dev *dev = i2c_get_clientdata(client);
dadb5bb4 30 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
c00a6b9f 31 int ret, i;
7908fad9 32 unsigned int uitmp;
df810e8a 33 u32 if_frequency;
7908fad9
AP		 34 u8 delivery_system_val, if_val[3], *conf_val_ptr;
35 u8 reg_bank2_2d_val, reg_bank0_d2_val;
dadb5bb4 36
01b4be14 37 dev_dbg(&client->dev,
b4c2c314 38 "delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%d stream_id=%d\n",
7908fad9
AP		 39 c->delivery_system, c->modulation, c->frequency,
40 c->bandwidth_hz, c->symbol_rate, c->inversion, c->stream_id);
41
42 if (!dev->active) {
dadb5bb4
AP		 43 ret = -EAGAIN;
44 goto err;
45 }
46
c00a6b9f 47 switch (c->delivery_system) {
6ebbe22d 48 case SYS_DVBT:
df810e8a 49 delivery_system_val = 0x02;
7908fad9
AP		 50 reg_bank2_2d_val = 0x23;
51 reg_bank0_d2_val = 0x2a;
6ebbe22d 52 break;
c00a6b9f 53 case SYS_DVBT2:
df810e8a 54 delivery_system_val = 0x03;
7908fad9
AP		 55 reg_bank2_2d_val = 0x3b;
56 reg_bank0_d2_val = 0x29;
c00a6b9f
AP		 57 break;
58 case SYS_DVBC_ANNEX_A:
df810e8a 59 delivery_system_val = 0x04;
7908fad9
AP		 60 reg_bank2_2d_val = 0x3b;
61 reg_bank0_d2_val = 0x29;
df810e8a
AP		 62 break;
63 default:
64 ret = -EINVAL;
65 goto err;
66 }
67
7908fad9
AP		 68 switch (c->delivery_system) {
69 case SYS_DVBT:
70 case SYS_DVBT2:
71 switch (c->bandwidth_hz) {
72 case 6000000:
73 conf_val_ptr = "\xe9\x55\x55\x1c\x29\x1c\x29";
74 break;
75 case 7000000:
76 conf_val_ptr = "\xc8\x00\x00\x17\x0a\x17\x0a";
77 break;
78 case 8000000:
79 conf_val_ptr = "\xaf\x00\x00\x11\xec\x11\xec";
80 break;
81 default:
82 ret = -EINVAL;
83 goto err;
84 }
85 break;
86 case SYS_DVBC_ANNEX_A:
87 conf_val_ptr = "\x10\xab\x0d\xae\x1d\x9d";
88 break;
89 default:
90 break;
c00a6b9f
AP		 91 }
92
7908fad9 93 /* Program tuner */
dadb5bb4
AP		 94 if (fe->ops.tuner_ops.set_params) {
95 ret = fe->ops.tuner_ops.set_params(fe);
96 if (ret)
97 goto err;
98 }
99
100 if (fe->ops.tuner_ops.get_if_frequency) {
101 ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
102 if (ret)
103 goto err;
104
7908fad9 105 dev_dbg(&client->dev, "get_if_frequency=%u\n", if_frequency);
df810e8a 106 } else {
7908fad9
AP		 107 ret = -EINVAL;
108 goto err;
dadb5bb4
AP		 109 }
110
7908fad9
AP		 111 /* Calculate IF registers */
112 uitmp = DIV_ROUND_CLOSEST_ULL((u64) if_frequency * 0x1000000, dev->clk);
113 if_val[0] = (uitmp >> 16) & 0xff;
114 if_val[1] = (uitmp >> 8) & 0xff;
115 if_val[2] = (uitmp >> 0) & 0xff;
dadb5bb4 116
97de6e89 117 ret = regmap_write(dev->regmap[2], 0x05, 0x00);
7908fad9
AP		 118 if (ret)
119 goto err;
97de6e89 120 ret = regmap_write(dev->regmap[2], 0xfb, 0x13);
7908fad9
AP		 121 if (ret)
122 goto err;
97de6e89 123 ret = regmap_write(dev->regmap[2], 0xef, 0x13);
7908fad9
AP		 124 if (ret)
125 goto err;
97de6e89 126 ret = regmap_write(dev->regmap[2], 0xf9, 0x13);
7908fad9
AP		 127 if (ret)
128 goto err;
97de6e89 129 ret = regmap_write(dev->regmap[2], 0x00, 0x18);
7908fad9
AP		 130 if (ret)
131 goto err;
97de6e89 132 ret = regmap_write(dev->regmap[2], 0x01, 0x01);
7908fad9
AP		 133 if (ret)
134 goto err;
97de6e89 135 ret = regmap_write(dev->regmap[2], 0x02, 0x21);
7908fad9
AP		 136 if (ret)
137 goto err;
97de6e89 138 ret = regmap_write(dev->regmap[2], 0x03, delivery_system_val);
7908fad9
AP		 139 if (ret)
140 goto err;
97de6e89 141 ret = regmap_write(dev->regmap[2], 0x0b, 0x00);
7908fad9
AP		 142 if (ret)
143 goto err;
c00a6b9f 144
df810e8a 145 for (i = 0; i < sizeof(if_val); i++) {
97de6e89 146 ret = regmap_write(dev->regmap[2], 0x10 + i, if_val[i]);
df810e8a
AP		 147 if (ret)
148 goto err;
149 }
150
7908fad9
AP		 151 switch (c->delivery_system) {
152 case SYS_DVBT:
153 case SYS_DVBT2:
154 for (i = 0; i < 7; i++) {
155 ret = regmap_write(dev->regmap[2], 0x13 + i,
156 conf_val_ptr[i]);
157 if (ret)
158 goto err;
159 }
160 break;
161 case SYS_DVBC_ANNEX_A:
162 ret = regmap_bulk_write(dev->regmap[1], 0x10, conf_val_ptr, 6);
c00a6b9f
AP		 163 if (ret)
164 goto err;
7908fad9
AP		 165 break;
166 default:
167 break;
c00a6b9f
AP		 168 }
169
7908fad9
AP		 170 ret = regmap_write(dev->regmap[2], 0x2d, reg_bank2_2d_val);
171 if (ret)
172 goto err;
97de6e89 173 ret = regmap_write(dev->regmap[2], 0x2e, 0x00);
7908fad9
AP		 174 if (ret)
175 goto err;
97de6e89 176 ret = regmap_write(dev->regmap[2], 0x56, 0x0d);
7908fad9
AP		 177 if (ret)
178 goto err;
179 ret = regmap_bulk_write(dev->regmap[0], 0x01,
180 "\xba\x13\x80\xba\x91\xdd\xe7\x28", 8);
181 if (ret)
182 goto err;
97de6e89 183 ret = regmap_write(dev->regmap[0], 0x0a, 0x1a);
7908fad9
AP		 184 if (ret)
185 goto err;
97de6e89 186 ret = regmap_write(dev->regmap[0], 0x13, 0x1f);
7908fad9
AP		 187 if (ret)
188 goto err;
97de6e89 189 ret = regmap_write(dev->regmap[0], 0x19, 0x03);
7908fad9
AP		 190 if (ret)
191 goto err;
97de6e89 192 ret = regmap_write(dev->regmap[0], 0x1d, 0xb0);
7908fad9
AP		 193 if (ret)
194 goto err;
97de6e89 195 ret = regmap_write(dev->regmap[0], 0x2a, 0x72);
7908fad9
AP		 196 if (ret)
197 goto err;
97de6e89 198 ret = regmap_write(dev->regmap[0], 0x2d, 0x00);
7908fad9
AP		 199 if (ret)
200 goto err;
97de6e89 201 ret = regmap_write(dev->regmap[0], 0x3c, 0x00);
7908fad9
AP		 202 if (ret)
203 goto err;
97de6e89 204 ret = regmap_write(dev->regmap[0], 0x3f, 0xf8);
7908fad9
AP		 205 if (ret)
206 goto err;
207 ret = regmap_bulk_write(dev->regmap[0], 0x40, "\xf4\x08", 2);
208 if (ret)
209 goto err;
210 ret = regmap_write(dev->regmap[0], 0xd2, reg_bank0_d2_val);
211 if (ret)
212 goto err;
97de6e89 213 ret = regmap_write(dev->regmap[0], 0xd4, 0x55);
7908fad9
AP		 214 if (ret)
215 goto err;
97de6e89 216 ret = regmap_write(dev->regmap[1], 0xbe, 0x08);
7908fad9
AP		 217 if (ret)
218 goto err;
97de6e89 219 ret = regmap_write(dev->regmap[0], 0xb2, 0x37);
7908fad9
AP		 220 if (ret)
221 goto err;
97de6e89 222 ret = regmap_write(dev->regmap[0], 0xd7, 0x04);
dadb5bb4
AP		 223 if (ret)
224 goto err;
225
40eca140
AP		 226 /* PLP */
227 if (c->delivery_system == SYS_DVBT2) {
2fb0e047
OS		 228 ret = regmap_write(dev->regmap[2], 0x36,
229 (c->stream_id == NO_STREAM_ID_FILTER) ? 0 :
230 c->stream_id );
40eca140
AP		 231 if (ret)
232 goto err;
233 }
234
7908fad9
AP		 235 /* Reset FSM */
236 ret = regmap_write(dev->regmap[2], 0xf8, 0x9f);
237 if (ret)
238 goto err;
dadb5bb4
AP		 239
240 return 0;
241err:
01b4be14 242 dev_dbg(&client->dev, "failed=%d\n", ret);
dadb5bb4
AP		 243 return ret;
244}
245
69ace6ee 246static int mn88473_read_status(struct dvb_frontend *fe, enum fe_status *status)
61393b07
MB		 247{
248 struct i2c_client *client = fe->demodulator_priv;
249 struct mn88473_dev *dev = i2c_get_clientdata(client);
250 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
69ace6ee
AP		 251 int ret, i, stmp;
252 unsigned int utmp, utmp1, utmp2;
253 u8 buf[5];
61393b07 254
69ace6ee
AP		 255 if (!dev->active) {
256 ret = -EAGAIN;
257 goto err;
61393b07
MB		 258 }
259
69ace6ee
AP		 260 /* Lock detection */
261 switch (c->delivery_system) {
262 case SYS_DVBT:
263 ret = regmap_read(dev->regmap[0], 0x62, &utmp);
61393b07
MB		 264 if (ret)
265 goto err;
266
69ace6ee
AP		 267 if (!(utmp & 0xa0)) {
268 if ((utmp & 0x0f) >= 0x09)
269 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
270 FE_HAS_VITERBI | FE_HAS_SYNC |
271 FE_HAS_LOCK;
272 else if ((utmp & 0x0f) >= 0x03)
273 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
274 } else {
275 *status = 0;
276 }
277 break;
278 case SYS_DVBT2:
279 ret = regmap_read(dev->regmap[2], 0x8b, &utmp);
280 if (ret)
281 goto err;
282
283 if (!(utmp & 0x40)) {
284 if ((utmp & 0x0f) >= 0x0d)
285 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
286 FE_HAS_VITERBI | FE_HAS_SYNC |
287 FE_HAS_LOCK;
288 else if ((utmp & 0x0f) >= 0x0a)
289 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
290 FE_HAS_VITERBI;
291 else if ((utmp & 0x0f) >= 0x07)
292 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
293 } else {
294 *status = 0;
295 }
296 break;
297 case SYS_DVBC_ANNEX_A:
298 ret = regmap_read(dev->regmap[1], 0x85, &utmp);
61393b07
MB		 299 if (ret)
300 goto err;
301
69ace6ee
AP		 302 if (!(utmp & 0x40)) {
303 ret = regmap_read(dev->regmap[1], 0x89, &utmp);
304 if (ret)
305 goto err;
61393b07 306
69ace6ee
AP		 307 if (utmp & 0x01)
308 *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
309 FE_HAS_VITERBI | FE_HAS_SYNC |
310 FE_HAS_LOCK;
311 } else {
312 *status = 0;
313 }
314 break;
315 default:
316 ret = -EINVAL;
61393b07 317 goto err;
61393b07
MB		 318 }
319
69ace6ee
AP		 320 /* Signal strength */
321 if (*status & FE_HAS_SIGNAL) {
322 for (i = 0; i < 2; i++) {
323 ret = regmap_bulk_read(dev->regmap[2], 0x86 + i,
324 &buf[i], 1);
325 if (ret)
326 goto err;
327 }
61393b07 328
69ace6ee
AP		 329 /* AGCRD[15:6] gives us a 10bit value ([5:0] are always 0) */
330 utmp1 = buf[0] << 8 | buf[1] << 0 | buf[0] >> 2;
331 dev_dbg(&client->dev, "strength=%u\n", utmp1);
61393b07 332
69ace6ee
AP		 333 c->strength.stat[0].scale = FE_SCALE_RELATIVE;
334 c->strength.stat[0].uvalue = utmp1;
61393b07 335 } else {
69ace6ee 336 c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
61393b07
MB		 337 }
338
339 /* CNR */
69ace6ee
AP		 340 if (*status & FE_HAS_VITERBI && c->delivery_system == SYS_DVBT) {
341 /* DVB-T CNR */
342 ret = regmap_bulk_read(dev->regmap[0], 0x8f, buf, 2);
61393b07
MB		 343 if (ret)
344 goto err;
345
69ace6ee
AP		 346 utmp = buf[0] << 8 | buf[1] << 0;
347 if (utmp) {
348 /* CNR[dB]: 10 * (log10(65536 / value) + 0.2) */
349 /* log10(65536) = 80807124, 0.2 = 3355443 */
350 stmp = div_u64(((u64)80807124 - intlog10(utmp)
351 + 3355443) * 10000, 1 << 24);
352 dev_dbg(&client->dev, "cnr=%d value=%u\n", stmp, utmp);
353 } else {
354 stmp = 0;
355 }
61393b07 356
69ace6ee
AP		 357 c->cnr.stat[0].svalue = stmp;
358 c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
359 } else if (*status & FE_HAS_VITERBI &&
360 c->delivery_system == SYS_DVBT2) {
361 /* DVB-T2 CNR */
362 for (i = 0; i < 3; i++) {
363 ret = regmap_bulk_read(dev->regmap[2], 0xb7 + i,
364 &buf[i], 1);
365 if (ret)
366 goto err;
367 }
61393b07 368
69ace6ee
AP		 369 utmp = buf[1] << 8 | buf[2] << 0;
370 utmp1 = (buf[0] >> 2) & 0x01; /* 0=SISO, 1=MISO */
371 if (utmp) {
372 if (utmp1) {
373 /* CNR[dB]: 10 * (log10(16384 / value) - 0.6) */
374 /* log10(16384) = 70706234, 0.6 = 10066330 */
375 stmp = div_u64(((u64)70706234 - intlog10(utmp)
376 - 10066330) * 10000, 1 << 24);
377 dev_dbg(&client->dev, "cnr=%d value=%u MISO\n",
378 stmp, utmp);
61393b07 379 } else {
69ace6ee
AP		 380 /* CNR[dB]: 10 * (log10(65536 / value) + 0.2) */
381 /* log10(65536) = 80807124, 0.2 = 3355443 */
382 stmp = div_u64(((u64)80807124 - intlog10(utmp)
383 + 3355443) * 10000, 1 << 24);
384 dev_dbg(&client->dev, "cnr=%d value=%u SISO\n",
385 stmp, utmp);
61393b07 386 }
69ace6ee
AP		 387 } else {
388 stmp = 0;
389 }
61393b07 390
69ace6ee 391 c->cnr.stat[0].svalue = stmp;
61393b07 392 c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
69ace6ee
AP		 393 } else if (*status & FE_HAS_VITERBI &&
394 c->delivery_system == SYS_DVBC_ANNEX_A) {
395 /* DVB-C CNR */
396 ret = regmap_bulk_read(dev->regmap[1], 0xa1, buf, 4);
397 if (ret)
398 goto err;
399
400 utmp1 = buf[0] << 8 | buf[1] << 0; /* signal */
401 utmp2 = buf[2] << 8 | buf[3] << 0; /* noise */
402 if (utmp1 && utmp2) {
403 /* CNR[dB]: 10 * log10(8 * (signal / noise)) */
404 /* log10(8) = 15151336 */
405 stmp = div_u64(((u64)15151336 + intlog10(utmp1)
406 - intlog10(utmp2)) * 10000, 1 << 24);
407 dev_dbg(&client->dev, "cnr=%d signal=%u noise=%u\n",
408 stmp, utmp1, utmp2);
409 } else {
410 stmp = 0;
411 }
61393b07 412
69ace6ee 413 c->cnr.stat[0].svalue = stmp;
61393b07
MB		 414 c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
415 } else {
416 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
417 }
418
419 /* BER */
69ace6ee
AP		 420 if (*status & FE_HAS_LOCK && (c->delivery_system == SYS_DVBT ||
421 c->delivery_system == SYS_DVBC_ANNEX_A)) {
422 /* DVB-T & DVB-C BER */
423 ret = regmap_bulk_read(dev->regmap[0], 0x92, buf, 5);
0aa83bb1
BL		 424 if (ret)
425 goto err;
7908fad9 426
69ace6ee
AP		 427 utmp1 = buf[0] << 16 | buf[1] << 8 | buf[2] << 0;
428 utmp2 = buf[3] << 8 | buf[4] << 0;
429 utmp2 = utmp2 * 8 * 204;
430 dev_dbg(&client->dev, "post_bit_error=%u post_bit_count=%u\n",
431 utmp1, utmp2);
7908fad9 432
69ace6ee
AP		 433 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
434 c->post_bit_error.stat[0].uvalue += utmp1;
435 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
436 c->post_bit_count.stat[0].uvalue += utmp2;
61393b07 437 } else {
69ace6ee
AP		 438 c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
439 c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
61393b07
MB		 440 }
441
442 /* PER */
443 if (*status & FE_HAS_LOCK) {
69ace6ee 444 ret = regmap_bulk_read(dev->regmap[0], 0xdd, buf, 4);
61393b07
MB		 445 if (ret)
446 goto err;
447
69ace6ee
AP		 448 utmp1 = buf[0] << 8 | buf[1] << 0;
449 utmp2 = buf[2] << 8 | buf[3] << 0;
450 dev_dbg(&client->dev, "block_error=%u block_count=%u\n",
451 utmp1, utmp2);
61393b07
MB		 452
453 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
69ace6ee 454 c->block_error.stat[0].uvalue += utmp1;
61393b07 455 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
69ace6ee 456 c->block_count.stat[0].uvalue += utmp2;
61393b07 457 } else {
69ace6ee
AP		 458 c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
459 c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
0aa83bb1
BL		 460 }
461
dadb5bb4
AP		 462 return 0;
463err:
69ace6ee 464 dev_dbg(&client->dev, "failed=%d\n", ret);
dadb5bb4
AP		 465 return ret;
466}
467
468static int mn88473_init(struct dvb_frontend *fe)
469{
01b4be14
AP		 470 struct i2c_client *client = fe->demodulator_priv;
471 struct mn88473_dev *dev = i2c_get_clientdata(client);
61393b07 472 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
7908fad9
AP		 473 int ret, len, remain;
474 unsigned int uitmp;
475 const struct firmware *fw;
476 const char *name = MN88473_FIRMWARE;
dadb5bb4 477
01b4be14 478 dev_dbg(&client->dev, "\n");
dadb5bb4 479
7908fad9
AP		 480 /* Check if firmware is already running */
481 ret = regmap_read(dev->regmap[0], 0xf5, &uitmp);
567627bf
BL		 482 if (ret)
483 goto err;
484
7908fad9
AP		 485 if (!(uitmp & 0x01))
486 goto warm;
dadb5bb4 487
7908fad9
AP		 488 /* Request the firmware, this will block and timeout */
489 ret = request_firmware(&fw, name, &client->dev);
dadb5bb4 490 if (ret) {
c5ee19c8 491 dev_err(&client->dev, "firmware file '%s' not found\n", name);
7908fad9 492 goto err;
dadb5bb4
AP		 493 }
494
7908fad9 495 dev_info(&client->dev, "downloading firmware from file '%s'\n", name);
dadb5bb4 496
97de6e89 497 ret = regmap_write(dev->regmap[0], 0xf5, 0x03);
dadb5bb4 498 if (ret)
7908fad9 499 goto err_release_firmware;
dadb5bb4 500
7908fad9
AP		 501 for (remain = fw->size; remain > 0; remain -= (dev->i2c_wr_max - 1)) {
502 len = min(dev->i2c_wr_max - 1, remain);
97de6e89 503 ret = regmap_bulk_write(dev->regmap[0], 0xf6,
7908fad9 504 &fw->data[fw->size - remain], len);
dadb5bb4 505 if (ret) {
7908fad9 506 dev_err(&client->dev, "firmware download failed %d\n",
b4c2c314 507 ret);
7908fad9 508 goto err_release_firmware;
dadb5bb4
AP		 509 }
510 }
511
7908fad9
AP		 512 release_firmware(fw);
513
514 /* Parity check of firmware */
515 ret = regmap_read(dev->regmap[0], 0xf8, &uitmp);
516 if (ret)
0f21ac7f 517 goto err;
7908fad9
AP		 518
519 if (uitmp & 0x10) {
520 dev_err(&client->dev, "firmware parity check failed\n");
521 ret = -EINVAL;
0f21ac7f
BL		 522 goto err;
523 }
0f21ac7f 524
97de6e89 525 ret = regmap_write(dev->regmap[0], 0xf5, 0x00);
dadb5bb4
AP		 526 if (ret)
527 goto err;
7908fad9
AP		 528warm:
529 /* TS config */
530 ret = regmap_write(dev->regmap[2], 0x09, 0x08);
531 if (ret)
532 goto err;
533 ret = regmap_write(dev->regmap[2], 0x08, 0x1d);
534 if (ret)
535 goto err;
dadb5bb4 536
7908fad9 537 dev->active = true;
dadb5bb4 538
61393b07
MB		 539 /* init stats here to indicate which stats are supported */
540 c->strength.len = 1;
541 c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
542 c->cnr.len = 1;
543 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
544 c->post_bit_error.len = 1;
545 c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
546 c->post_bit_count.len = 1;
547 c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
548 c->block_error.len = 1;
549 c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
550 c->block_count.len = 1;
551 c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
552
dadb5bb4 553 return 0;
7908fad9 554err_release_firmware:
b5911384 555 release_firmware(fw);
7908fad9 556err:
01b4be14 557 dev_dbg(&client->dev, "failed=%d\n", ret);
dadb5bb4
AP		 558 return ret;
559}
560
561static int mn88473_sleep(struct dvb_frontend *fe)
562{
01b4be14
AP		 563 struct i2c_client *client = fe->demodulator_priv;
564 struct mn88473_dev *dev = i2c_get_clientdata(client);
dadb5bb4
AP		 565 int ret;
566
01b4be14 567 dev_dbg(&client->dev, "\n");
dadb5bb4 568
7908fad9
AP		 569 dev->active = false;
570
97de6e89 571 ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
dadb5bb4
AP		 572 if (ret)
573 goto err;
574
dadb5bb4
AP		 575 return 0;
576err:
01b4be14 577 dev_dbg(&client->dev, "failed=%d\n", ret);
dadb5bb4
AP		 578 return ret;
579}
580
7908fad9
AP		 581static const struct dvb_frontend_ops mn88473_ops = {
582 .delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A},
01b4be14
AP		 583 .info = {
584 .name = "Panasonic MN88473",
8459e41d
AP		 585 .symbol_rate_min = 1000000,
586 .symbol_rate_max = 7200000,
01b4be14
AP		 587 .caps = FE_CAN_FEC_1_2 |
588 FE_CAN_FEC_2_3 |
589 FE_CAN_FEC_3_4 |
590 FE_CAN_FEC_5_6 |
591 FE_CAN_FEC_7_8 |
592 FE_CAN_FEC_AUTO |
593 FE_CAN_QPSK |
594 FE_CAN_QAM_16 |
595 FE_CAN_QAM_32 |
596 FE_CAN_QAM_64 |
597 FE_CAN_QAM_128 |
598 FE_CAN_QAM_256 |
599 FE_CAN_QAM_AUTO |
600 FE_CAN_TRANSMISSION_MODE_AUTO |
601 FE_CAN_GUARD_INTERVAL_AUTO |
602 FE_CAN_HIERARCHY_AUTO |
603 FE_CAN_MUTE_TS |
40eca140
AP		 604 FE_CAN_2G_MODULATION |
605 FE_CAN_MULTISTREAM
01b4be14
AP		 606 },
607
608 .get_tune_settings = mn88473_get_tune_settings,
609
610 .init = mn88473_init,
611 .sleep = mn88473_sleep,
dadb5bb4 612
01b4be14
AP		 613 .set_frontend = mn88473_set_frontend,
614
615 .read_status = mn88473_read_status,
616};
617
618static int mn88473_probe(struct i2c_client *client,
b4c2c314 619 const struct i2c_device_id *id)
dadb5bb4 620{
01b4be14 621 struct mn88473_config *config = client->dev.platform_data;
dadb5bb4 622 struct mn88473_dev *dev;
01b4be14 623 int ret;
7908fad9 624 unsigned int uitmp;
97de6e89
AP		 625 static const struct regmap_config regmap_config = {
626 .reg_bits = 8,
627 .val_bits = 8,
628 };
dadb5bb4 629
01b4be14 630 dev_dbg(&client->dev, "\n");
dadb5bb4 631
7908fad9 632 /* Caller really need to provide pointer for frontend we create */
01b4be14
AP		 633 if (config->fe == NULL) {
634 dev_err(&client->dev, "frontend pointer not defined\n");
635 ret = -EINVAL;
636 goto err;
637 }
638
639 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
640 if (dev == NULL) {
dadb5bb4 641 ret = -ENOMEM;
dadb5bb4
AP		 642 goto err;
643 }
644
7908fad9
AP		 645 if (config->i2c_wr_max)
646 dev->i2c_wr_max = config->i2c_wr_max;
3b786f13 647 else
7908fad9
AP		 648 dev->i2c_wr_max = ~0;
649
650 if (config->xtal)
651 dev->clk = config->xtal;
652 else
653 dev->clk = 25000000;
97de6e89
AP		 654 dev->client[0] = client;
655 dev->regmap[0] = regmap_init_i2c(dev->client[0], &regmap_config);
656 if (IS_ERR(dev->regmap[0])) {
657 ret = PTR_ERR(dev->regmap[0]);
658 goto err_kfree;
659 }
dadb5bb4 660
01b4be14 661 /*
7908fad9 662 * Chip has three I2C addresses for different register banks. Used
01b4be14 663 * addresses are 0x18, 0x1a and 0x1c. We register two dummy clients,
7908fad9
AP		 664 * 0x1a and 0x1c, in order to get own I2C client for each register bank.
665 *
666 * Also, register bank 2 do not support sequential I/O. Only single
667 * register write or read is allowed to that bank.
01b4be14
AP		 668 */
669 dev->client[1] = i2c_new_dummy(client->adapter, 0x1a);
670 if (dev->client[1] == NULL) {
671 ret = -ENODEV;
672 dev_err(&client->dev, "I2C registration failed\n");
673 if (ret)
97de6e89
AP		 674 goto err_regmap_0_regmap_exit;
675 }
676 dev->regmap[1] = regmap_init_i2c(dev->client[1], &regmap_config);
677 if (IS_ERR(dev->regmap[1])) {
678 ret = PTR_ERR(dev->regmap[1]);
679 goto err_client_1_i2c_unregister_device;
01b4be14
AP		 680 }
681 i2c_set_clientdata(dev->client[1], dev);
682
683 dev->client[2] = i2c_new_dummy(client->adapter, 0x1c);
684 if (dev->client[2] == NULL) {
685 ret = -ENODEV;
686 dev_err(&client->dev, "2nd I2C registration failed\n");
687 if (ret)
97de6e89
AP		 688 goto err_regmap_1_regmap_exit;
689 }
690 dev->regmap[2] = regmap_init_i2c(dev->client[2], &regmap_config);
691 if (IS_ERR(dev->regmap[2])) {
692 ret = PTR_ERR(dev->regmap[2]);
693 goto err_client_2_i2c_unregister_device;
01b4be14
AP		 694 }
695 i2c_set_clientdata(dev->client[2], dev);
dadb5bb4 696
d930b5b5
AP		 697 /* Check demod answers with correct chip id */
698 ret = regmap_read(dev->regmap[2], 0xff, &uitmp);
699 if (ret)
700 goto err_regmap_2_regmap_exit;
701
702 dev_dbg(&client->dev, "chip id=%02x\n", uitmp);
703
704 if (uitmp != 0x03) {
705 ret = -ENODEV;
706 goto err_regmap_2_regmap_exit;
707 }
708
7908fad9
AP		 709 /* Sleep because chip is active by default */
710 ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
711 if (ret)
37cf9b2d 712 goto err_regmap_2_regmap_exit;
7908fad9
AP		 713
714 /* Create dvb frontend */
715 memcpy(&dev->frontend.ops, &mn88473_ops, sizeof(dev->frontend.ops));
716 dev->frontend.demodulator_priv = client;
717 *config->fe = &dev->frontend;
01b4be14 718 i2c_set_clientdata(client, dev);
dadb5bb4 719
7908fad9
AP		 720 dev_info(&client->dev, "Panasonic MN88473 successfully identified\n");
721
01b4be14 722 return 0;
37cf9b2d
AP		 723err_regmap_2_regmap_exit:
724 regmap_exit(dev->regmap[2]);
97de6e89
AP		 725err_client_2_i2c_unregister_device:
726 i2c_unregister_device(dev->client[2]);
727err_regmap_1_regmap_exit:
728 regmap_exit(dev->regmap[1]);
01b4be14
AP		 729err_client_1_i2c_unregister_device:
730 i2c_unregister_device(dev->client[1]);
97de6e89
AP		 731err_regmap_0_regmap_exit:
732 regmap_exit(dev->regmap[0]);
01b4be14 733err_kfree:
dadb5bb4 734 kfree(dev);
01b4be14
AP		 735err:
736 dev_dbg(&client->dev, "failed=%d\n", ret);
737 return ret;
dadb5bb4 738}
dadb5bb4 739
01b4be14
AP		 740static int mn88473_remove(struct i2c_client *client)
741{
742 struct mn88473_dev *dev = i2c_get_clientdata(client);
dadb5bb4 743
01b4be14 744 dev_dbg(&client->dev, "\n");
dadb5bb4 745
97de6e89 746 regmap_exit(dev->regmap[2]);
01b4be14 747 i2c_unregister_device(dev->client[2]);
97de6e89
AP		 748
749 regmap_exit(dev->regmap[1]);
01b4be14 750 i2c_unregister_device(dev->client[1]);
dadb5bb4 751
97de6e89
AP		 752 regmap_exit(dev->regmap[0]);
753
01b4be14 754 kfree(dev);
dadb5bb4 755
01b4be14
AP		 756 return 0;
757}
dadb5bb4 758
01b4be14
AP		 759static const struct i2c_device_id mn88473_id_table[] = {
760 {"mn88473", 0},
761 {}
762};
763MODULE_DEVICE_TABLE(i2c, mn88473_id_table);
764
765static struct i2c_driver mn88473_driver = {
766 .driver = {
7908fad9
AP		 767 .name = "mn88473",
768 .suppress_bind_attrs = true,
01b4be14
AP		 769 },
770 .probe = mn88473_probe,
771 .remove = mn88473_remove,
772 .id_table = mn88473_id_table,
dadb5bb4
AP		 773};
774
01b4be14
AP		 775module_i2c_driver(mn88473_driver);
776
dadb5bb4
AP		 777MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
778MODULE_DESCRIPTION("Panasonic MN88473 DVB-T/T2/C demodulator driver");
779MODULE_LICENSE("GPL");
780MODULE_FIRMWARE(MN88473_FIRMWARE);
Linux 6.x block layer and io_uring tree(s)