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drm: add modifiers for MediaTek tiled formats
[drm/drm-misc.git] / drivers / media / tuners / tda18271-fe.c
blob3a3309bc01518e2e073e8328697b8df8aaa3f4e7
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 tda18271-fe.c - driver for the Philips / NXP TDA18271 silicon tuner
4
5 Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org>
6
7 */
8
9 #include "tda18271-priv.h"
10 #include "tda8290.h"
11
12 #include <linux/delay.h>
13 #include <linux/videodev2.h>
14
15 int tda18271_debug;
16 module_param_named(debug, tda18271_debug, int, 0644);
17 MODULE_PARM_DESC(debug, "set debug level (info=1, map=2, reg=4, adv=8, cal=16 (or-able))");
18
19 static int tda18271_cal_on_startup = -1;
20 module_param_named(cal, tda18271_cal_on_startup, int, 0644);
21 MODULE_PARM_DESC(cal, "perform RF tracking filter calibration on startup");
22
23 static DEFINE_MUTEX(tda18271_list_mutex);
24 static LIST_HEAD(hybrid_tuner_instance_list);
25
26 /*---------------------------------------------------------------------*/
27
28 static int tda18271_toggle_output(struct dvb_frontend *fe, int standby)
29 {
30 struct tda18271_priv *priv = fe->tuner_priv;
31
32 int ret = tda18271_set_standby_mode(fe, standby ? 1 : 0,
33 priv->output_opt & TDA18271_OUTPUT_LT_OFF ? 1 : 0,
34 priv->output_opt & TDA18271_OUTPUT_XT_OFF ? 1 : 0);
35
36 if (tda_fail(ret))
37 goto fail;
38
39 tda_dbg("%s mode: xtal oscillator %s, slave tuner loop through %s\n",
40 standby ? "standby" : "active",
41 priv->output_opt & TDA18271_OUTPUT_XT_OFF ? "off" : "on",
42 priv->output_opt & TDA18271_OUTPUT_LT_OFF ? "off" : "on");
43 fail:
44 return ret;
45 }
46
47 /*---------------------------------------------------------------------*/
48
49 static inline int charge_pump_source(struct dvb_frontend *fe, int force)
50 {
51 struct tda18271_priv *priv = fe->tuner_priv;
52 return tda18271_charge_pump_source(fe,
53 (priv->role == TDA18271_SLAVE) ?
54 TDA18271_CAL_PLL :
55 TDA18271_MAIN_PLL, force);
56 }
57
58 static inline void tda18271_set_if_notch(struct dvb_frontend *fe)
59 {
60 struct tda18271_priv *priv = fe->tuner_priv;
61 unsigned char *regs = priv->tda18271_regs;
62
63 switch (priv->mode) {
64 case TDA18271_ANALOG:
65 regs[R_MPD] &= ~0x80; /* IF notch = 0 */
66 break;
67 case TDA18271_DIGITAL:
68 regs[R_MPD] |= 0x80; /* IF notch = 1 */
69 break;
70 }
71 }
72
73 static int tda18271_channel_configuration(struct dvb_frontend *fe,
74 struct tda18271_std_map_item *map,
75 u32 freq, u32 bw)
76 {
77 struct tda18271_priv *priv = fe->tuner_priv;
78 unsigned char *regs = priv->tda18271_regs;
79 int ret;
80 u32 N;
81
82 /* update TV broadcast parameters */
83
84 /* set standard */
85 regs[R_EP3] &= ~0x1f; /* clear std bits */
86 regs[R_EP3] |= (map->agc_mode << 3) | map->std;
87
88 if (priv->id == TDA18271HDC2) {
89 /* set rfagc to high speed mode */
90 regs[R_EP3] &= ~0x04;
91 }
92
93 /* set cal mode to normal */
94 regs[R_EP4] &= ~0x03;
95
96 /* update IF output level */
97 regs[R_EP4] &= ~0x1c; /* clear if level bits */
98 regs[R_EP4] |= (map->if_lvl << 2);
99
100 /* update FM_RFn */
101 regs[R_EP4] &= ~0x80;
102 regs[R_EP4] |= map->fm_rfn << 7;
103
104 /* update rf top / if top */
105 regs[R_EB22] = 0x00;
106 regs[R_EB22] |= map->rfagc_top;
107 ret = tda18271_write_regs(fe, R_EB22, 1);
108 if (tda_fail(ret))
109 goto fail;
110
111 /* --------------------------------------------------------------- */
112
113 /* disable Power Level Indicator */
114 regs[R_EP1] |= 0x40;
115
116 /* make sure thermometer is off */
117 regs[R_TM] &= ~0x10;
118
119 /* frequency dependent parameters */
120
121 tda18271_calc_ir_measure(fe, &freq);
122
123 tda18271_calc_bp_filter(fe, &freq);
124
125 tda18271_calc_rf_band(fe, &freq);
126
127 tda18271_calc_gain_taper(fe, &freq);
128
129 /* --------------------------------------------------------------- */
130
131 /* dual tuner and agc1 extra configuration */
132
133 switch (priv->role) {
134 case TDA18271_MASTER:
135 regs[R_EB1] |= 0x04; /* main vco */
136 break;
137 case TDA18271_SLAVE:
138 regs[R_EB1] &= ~0x04; /* cal vco */
139 break;
140 }
141
142 /* agc1 always active */
143 regs[R_EB1] &= ~0x02;
144
145 /* agc1 has priority on agc2 */
146 regs[R_EB1] &= ~0x01;
147
148 ret = tda18271_write_regs(fe, R_EB1, 1);
149 if (tda_fail(ret))
150 goto fail;
151
152 /* --------------------------------------------------------------- */
153
154 N = map->if_freq * 1000 + freq;
155
156 switch (priv->role) {
157 case TDA18271_MASTER:
158 tda18271_calc_main_pll(fe, N);
159 tda18271_set_if_notch(fe);
160 tda18271_write_regs(fe, R_MPD, 4);
161 break;
162 case TDA18271_SLAVE:
163 tda18271_calc_cal_pll(fe, N);
164 tda18271_write_regs(fe, R_CPD, 4);
165
166 regs[R_MPD] = regs[R_CPD] & 0x7f;
167 tda18271_set_if_notch(fe);
168 tda18271_write_regs(fe, R_MPD, 1);
169 break;
170 }
171
172 ret = tda18271_write_regs(fe, R_TM, 7);
173 if (tda_fail(ret))
174 goto fail;
175
176 /* force charge pump source */
177 charge_pump_source(fe, 1);
178
179 msleep(1);
180
181 /* return pll to normal operation */
182 charge_pump_source(fe, 0);
183
184 msleep(20);
185
186 if (priv->id == TDA18271HDC2) {
187 /* set rfagc to normal speed mode */
188 if (map->fm_rfn)
189 regs[R_EP3] &= ~0x04;
190 else
191 regs[R_EP3] |= 0x04;
192 ret = tda18271_write_regs(fe, R_EP3, 1);
193 }
194 fail:
195 return ret;
196 }
197
198 static int tda18271_read_thermometer(struct dvb_frontend *fe)
199 {
200 struct tda18271_priv *priv = fe->tuner_priv;
201 unsigned char *regs = priv->tda18271_regs;
202 int tm;
203
204 /* switch thermometer on */
205 regs[R_TM] |= 0x10;
206 tda18271_write_regs(fe, R_TM, 1);
207
208 /* read thermometer info */
209 tda18271_read_regs(fe);
210
211 if ((((regs[R_TM] & 0x0f) == 0x00) && ((regs[R_TM] & 0x20) == 0x20)) ||
212 (((regs[R_TM] & 0x0f) == 0x08) && ((regs[R_TM] & 0x20) == 0x00))) {
213
214 if ((regs[R_TM] & 0x20) == 0x20)
215 regs[R_TM] &= ~0x20;
216 else
217 regs[R_TM] |= 0x20;
218
219 tda18271_write_regs(fe, R_TM, 1);
220
221 msleep(10); /* temperature sensing */
222
223 /* read thermometer info */
224 tda18271_read_regs(fe);
225 }
226
227 tm = tda18271_lookup_thermometer(fe);
228
229 /* switch thermometer off */
230 regs[R_TM] &= ~0x10;
231 tda18271_write_regs(fe, R_TM, 1);
232
233 /* set CAL mode to normal */
234 regs[R_EP4] &= ~0x03;
235 tda18271_write_regs(fe, R_EP4, 1);
236
237 return tm;
238 }
239
240 /* ------------------------------------------------------------------ */
241
242 static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe,
243 u32 freq)
244 {
245 struct tda18271_priv *priv = fe->tuner_priv;
246 struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;
247 unsigned char *regs = priv->tda18271_regs;
248 int i, ret;
249 u8 tm_current, dc_over_dt, rf_tab;
250 s32 rfcal_comp, approx;
251
252 /* power up */
253 ret = tda18271_set_standby_mode(fe, 0, 0, 0);
254 if (tda_fail(ret))
255 goto fail;
256
257 /* read die current temperature */
258 tm_current = tda18271_read_thermometer(fe);
259
260 /* frequency dependent parameters */
261
262 tda18271_calc_rf_cal(fe, &freq);
263 rf_tab = regs[R_EB14];
264
265 i = tda18271_lookup_rf_band(fe, &freq, NULL);
266 if (tda_fail(i))
267 return i;
268
269 if ((0 == map[i].rf3) || (freq / 1000 < map[i].rf2)) {
270 approx = map[i].rf_a1 * (s32)(freq / 1000 - map[i].rf1) +
271 map[i].rf_b1 + rf_tab;
272 } else {
273 approx = map[i].rf_a2 * (s32)(freq / 1000 - map[i].rf2) +
274 map[i].rf_b2 + rf_tab;
275 }
276
277 if (approx < 0)
278 approx = 0;
279 if (approx > 255)
280 approx = 255;
281
282 ret = tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt);
283 if (tda_fail(ret))
284 goto fail;
285
286 /* calculate temperature compensation */
287 rfcal_comp = dc_over_dt * (s32)(tm_current - priv->tm_rfcal) / 1000;
288
289 regs[R_EB14] = (unsigned char)(approx + rfcal_comp);
290 ret = tda18271_write_regs(fe, R_EB14, 1);
291 fail:
292 return ret;
293 }
294
295 static int tda18271_por(struct dvb_frontend *fe)
296 {
297 struct tda18271_priv *priv = fe->tuner_priv;
298 unsigned char *regs = priv->tda18271_regs;
299 int ret;
300
301 /* power up detector 1 */
302 regs[R_EB12] &= ~0x20;
303 ret = tda18271_write_regs(fe, R_EB12, 1);
304 if (tda_fail(ret))
305 goto fail;
306
307 regs[R_EB18] &= ~0x80; /* turn agc1 loop on */
308 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
309 ret = tda18271_write_regs(fe, R_EB18, 1);
310 if (tda_fail(ret))
311 goto fail;
312
313 regs[R_EB21] |= 0x03; /* set agc2_gain to -6 dB */
314
315 /* POR mode */
316 ret = tda18271_set_standby_mode(fe, 1, 0, 0);
317 if (tda_fail(ret))
318 goto fail;
319
320 /* disable 1.5 MHz low pass filter */
321 regs[R_EB23] &= ~0x04; /* forcelp_fc2_en = 0 */
322 regs[R_EB23] &= ~0x02; /* XXX: lp_fc[2] = 0 */
323 ret = tda18271_write_regs(fe, R_EB21, 3);
324 fail:
325 return ret;
326 }
327
328 static int tda18271_calibrate_rf(struct dvb_frontend *fe, u32 freq)
329 {
330 struct tda18271_priv *priv = fe->tuner_priv;
331 unsigned char *regs = priv->tda18271_regs;
332 u32 N;
333
334 /* set CAL mode to normal */
335 regs[R_EP4] &= ~0x03;
336 tda18271_write_regs(fe, R_EP4, 1);
337
338 /* switch off agc1 */
339 regs[R_EP3] |= 0x40; /* sm_lt = 1 */
340
341 regs[R_EB18] |= 0x03; /* set agc1_gain to 15 dB */
342 tda18271_write_regs(fe, R_EB18, 1);
343
344 /* frequency dependent parameters */
345
346 tda18271_calc_bp_filter(fe, &freq);
347 tda18271_calc_gain_taper(fe, &freq);
348 tda18271_calc_rf_band(fe, &freq);
349 tda18271_calc_km(fe, &freq);
350
351 tda18271_write_regs(fe, R_EP1, 3);
352 tda18271_write_regs(fe, R_EB13, 1);
353
354 /* main pll charge pump source */
355 tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 1);
356
357 /* cal pll charge pump source */
358 tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 1);
359
360 /* force dcdc converter to 0 V */
361 regs[R_EB14] = 0x00;
362 tda18271_write_regs(fe, R_EB14, 1);
363
364 /* disable plls lock */
365 regs[R_EB20] &= ~0x20;
366 tda18271_write_regs(fe, R_EB20, 1);
367
368 /* set CAL mode to RF tracking filter calibration */
369 regs[R_EP4] |= 0x03;
370 tda18271_write_regs(fe, R_EP4, 2);
371
372 /* --------------------------------------------------------------- */
373
374 /* set the internal calibration signal */
375 N = freq;
376
377 tda18271_calc_cal_pll(fe, N);
378 tda18271_write_regs(fe, R_CPD, 4);
379
380 /* downconvert internal calibration */
381 N += 1000000;
382
383 tda18271_calc_main_pll(fe, N);
384 tda18271_write_regs(fe, R_MPD, 4);
385
386 msleep(5);
387
388 tda18271_write_regs(fe, R_EP2, 1);
389 tda18271_write_regs(fe, R_EP1, 1);
390 tda18271_write_regs(fe, R_EP2, 1);
391 tda18271_write_regs(fe, R_EP1, 1);
392
393 /* --------------------------------------------------------------- */
394
395 /* normal operation for the main pll */
396 tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 0);
397
398 /* normal operation for the cal pll */
399 tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 0);
400
401 msleep(10); /* plls locking */
402
403 /* launch the rf tracking filters calibration */
404 regs[R_EB20] |= 0x20;
405 tda18271_write_regs(fe, R_EB20, 1);
406
407 msleep(60); /* calibration */
408
409 /* --------------------------------------------------------------- */
410
411 /* set CAL mode to normal */
412 regs[R_EP4] &= ~0x03;
413
414 /* switch on agc1 */
415 regs[R_EP3] &= ~0x40; /* sm_lt = 0 */
416
417 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
418 tda18271_write_regs(fe, R_EB18, 1);
419
420 tda18271_write_regs(fe, R_EP3, 2);
421
422 /* synchronization */
423 tda18271_write_regs(fe, R_EP1, 1);
424
425 /* get calibration result */
426 tda18271_read_extended(fe);
427
428 return regs[R_EB14];
429 }
430
431 static int tda18271_powerscan(struct dvb_frontend *fe,
432 u32 *freq_in, u32 *freq_out)
433 {
434 struct tda18271_priv *priv = fe->tuner_priv;
435 unsigned char *regs = priv->tda18271_regs;
436 int sgn, bcal, count, wait, ret;
437 u8 cid_target;
438 u16 count_limit;
439 u32 freq;
440
441 freq = *freq_in;
442
443 tda18271_calc_rf_band(fe, &freq);
444 tda18271_calc_rf_cal(fe, &freq);
445 tda18271_calc_gain_taper(fe, &freq);
446 tda18271_lookup_cid_target(fe, &freq, &cid_target, &count_limit);
447
448 tda18271_write_regs(fe, R_EP2, 1);
449 tda18271_write_regs(fe, R_EB14, 1);
450
451 /* downconvert frequency */
452 freq += 1000000;
453
454 tda18271_calc_main_pll(fe, freq);
455 tda18271_write_regs(fe, R_MPD, 4);
456
457 msleep(5); /* pll locking */
458
459 /* detection mode */
460 regs[R_EP4] &= ~0x03;
461 regs[R_EP4] |= 0x01;
462 tda18271_write_regs(fe, R_EP4, 1);
463
464 /* launch power detection measurement */
465 tda18271_write_regs(fe, R_EP2, 1);
466
467 /* read power detection info, stored in EB10 */
468 ret = tda18271_read_extended(fe);
469 if (tda_fail(ret))
470 return ret;
471
472 /* algorithm initialization */
473 sgn = 1;
474 *freq_out = *freq_in;
475 count = 0;
476 wait = false;
477
478 while ((regs[R_EB10] & 0x3f) < cid_target) {
479 /* downconvert updated freq to 1 MHz */
480 freq = *freq_in + (sgn * count) + 1000000;
481
482 tda18271_calc_main_pll(fe, freq);
483 tda18271_write_regs(fe, R_MPD, 4);
484
485 if (wait) {
486 msleep(5); /* pll locking */
487 wait = false;
488 } else
489 udelay(100); /* pll locking */
490
491 /* launch power detection measurement */
492 tda18271_write_regs(fe, R_EP2, 1);
493
494 /* read power detection info, stored in EB10 */
495 ret = tda18271_read_extended(fe);
496 if (tda_fail(ret))
497 return ret;
498
499 count += 200;
500
501 if (count <= count_limit)
502 continue;
503
504 if (sgn <= 0)
505 break;
506
507 sgn = -1 * sgn;
508 count = 200;
509 wait = true;
510 }
511
512 if ((regs[R_EB10] & 0x3f) >= cid_target) {
513 bcal = 1;
514 *freq_out = freq - 1000000;
515 } else
516 bcal = 0;
517
518 tda_cal("bcal = %d, freq_in = %d, freq_out = %d (freq = %d)\n",
519 bcal, *freq_in, *freq_out, freq);
520
521 return bcal;
522 }
523
524 static int tda18271_powerscan_init(struct dvb_frontend *fe)
525 {
526 struct tda18271_priv *priv = fe->tuner_priv;
527 unsigned char *regs = priv->tda18271_regs;
528 int ret;
529
530 /* set standard to digital */
531 regs[R_EP3] &= ~0x1f; /* clear std bits */
532 regs[R_EP3] |= 0x12;
533
534 /* set cal mode to normal */
535 regs[R_EP4] &= ~0x03;
536
537 /* update IF output level */
538 regs[R_EP4] &= ~0x1c; /* clear if level bits */
539
540 ret = tda18271_write_regs(fe, R_EP3, 2);
541 if (tda_fail(ret))
542 goto fail;
543
544 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
545 ret = tda18271_write_regs(fe, R_EB18, 1);
546 if (tda_fail(ret))
547 goto fail;
548
549 regs[R_EB21] &= ~0x03; /* set agc2_gain to -15 dB */
550
551 /* 1.5 MHz low pass filter */
552 regs[R_EB23] |= 0x04; /* forcelp_fc2_en = 1 */
553 regs[R_EB23] |= 0x02; /* lp_fc[2] = 1 */
554
555 ret = tda18271_write_regs(fe, R_EB21, 3);
556 fail:
557 return ret;
558 }
559
560 static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq)
561 {
562 struct tda18271_priv *priv = fe->tuner_priv;
563 struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;
564 unsigned char *regs = priv->tda18271_regs;
565 int bcal, rf, i;
566 s32 divisor, dividend;
567 #define RF1 0
568 #define RF2 1
569 #define RF3 2
570 u32 rf_default[3];
571 u32 rf_freq[3];
572 s32 prog_cal[3];
573 s32 prog_tab[3];
574
575 i = tda18271_lookup_rf_band(fe, &freq, NULL);
576
577 if (tda_fail(i))
578 return i;
579
580 rf_default[RF1] = 1000 * map[i].rf1_def;
581 rf_default[RF2] = 1000 * map[i].rf2_def;
582 rf_default[RF3] = 1000 * map[i].rf3_def;
583
584 for (rf = RF1; rf <= RF3; rf++) {
585 if (0 == rf_default[rf])
586 return 0;
587 tda_cal("freq = %d, rf = %d\n", freq, rf);
588
589 /* look for optimized calibration frequency */
590 bcal = tda18271_powerscan(fe, &rf_default[rf], &rf_freq[rf]);
591 if (tda_fail(bcal))
592 return bcal;
593
594 tda18271_calc_rf_cal(fe, &rf_freq[rf]);
595 prog_tab[rf] = (s32)regs[R_EB14];
596
597 if (1 == bcal)
598 prog_cal[rf] =
599 (s32)tda18271_calibrate_rf(fe, rf_freq[rf]);
600 else
601 prog_cal[rf] = prog_tab[rf];
602
603 switch (rf) {
604 case RF1:
605 map[i].rf_a1 = 0;
606 map[i].rf_b1 = (prog_cal[RF1] - prog_tab[RF1]);
607 map[i].rf1 = rf_freq[RF1] / 1000;
608 break;
609 case RF2:
610 dividend = (prog_cal[RF2] - prog_tab[RF2] -
611 prog_cal[RF1] + prog_tab[RF1]);
612 divisor = (s32)(rf_freq[RF2] - rf_freq[RF1]) / 1000;
613 map[i].rf_a1 = (dividend / divisor);
614 map[i].rf2 = rf_freq[RF2] / 1000;
615 break;
616 case RF3:
617 dividend = (prog_cal[RF3] - prog_tab[RF3] -
618 prog_cal[RF2] + prog_tab[RF2]);
619 divisor = (s32)(rf_freq[RF3] - rf_freq[RF2]) / 1000;
620 map[i].rf_a2 = (dividend / divisor);
621 map[i].rf_b2 = (prog_cal[RF2] - prog_tab[RF2]);
622 map[i].rf3 = rf_freq[RF3] / 1000;
623 break;
624 default:
625 BUG();
626 }
627 }
628
629 return 0;
630 }
631
632 static int tda18271_calc_rf_filter_curve(struct dvb_frontend *fe)
633 {
634 struct tda18271_priv *priv = fe->tuner_priv;
635 unsigned int i;
636 int ret;
637
638 tda_info("performing RF tracking filter calibration\n");
639
640 /* wait for die temperature stabilization */
641 msleep(200);
642
643 ret = tda18271_powerscan_init(fe);
644 if (tda_fail(ret))
645 goto fail;
646
647 /* rf band calibration */
648 for (i = 0; priv->rf_cal_state[i].rfmax != 0; i++) {
649 ret =
650 tda18271_rf_tracking_filters_init(fe, 1000 *
651 priv->rf_cal_state[i].rfmax);
652 if (tda_fail(ret))
653 goto fail;
654 }
655
656 priv->tm_rfcal = tda18271_read_thermometer(fe);
657 fail:
658 return ret;
659 }
660
661 /* ------------------------------------------------------------------ */
662
663 static int tda18271c2_rf_cal_init(struct dvb_frontend *fe)
664 {
665 struct tda18271_priv *priv = fe->tuner_priv;
666 unsigned char *regs = priv->tda18271_regs;
667 int ret;
668
669 /* test RF_CAL_OK to see if we need init */
670 if ((regs[R_EP1] & 0x10) == 0)
671 priv->cal_initialized = false;
672
673 if (priv->cal_initialized)
674 return 0;
675
676 ret = tda18271_calc_rf_filter_curve(fe);
677 if (tda_fail(ret))
678 goto fail;
679
680 ret = tda18271_por(fe);
681 if (tda_fail(ret))
682 goto fail;
683
684 tda_info("RF tracking filter calibration complete\n");
685
686 priv->cal_initialized = true;
687 goto end;
688 fail:
689 tda_info("RF tracking filter calibration failed!\n");
690 end:
691 return ret;
692 }
693
694 static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
695 u32 freq, u32 bw)
696 {
697 struct tda18271_priv *priv = fe->tuner_priv;
698 unsigned char *regs = priv->tda18271_regs;
699 int ret;
700 u32 N = 0;
701
702 /* calculate bp filter */
703 tda18271_calc_bp_filter(fe, &freq);
704 tda18271_write_regs(fe, R_EP1, 1);
705
706 regs[R_EB4] &= 0x07;
707 regs[R_EB4] |= 0x60;
708 tda18271_write_regs(fe, R_EB4, 1);
709
710 regs[R_EB7] = 0x60;
711 tda18271_write_regs(fe, R_EB7, 1);
712
713 regs[R_EB14] = 0x00;
714 tda18271_write_regs(fe, R_EB14, 1);
715
716 regs[R_EB20] = 0xcc;
717 tda18271_write_regs(fe, R_EB20, 1);
718
719 /* set cal mode to RF tracking filter calibration */
720 regs[R_EP4] |= 0x03;
721
722 /* calculate cal pll */
723
724 switch (priv->mode) {
725 case TDA18271_ANALOG:
726 N = freq - 1250000;
727 break;
728 case TDA18271_DIGITAL:
729 N = freq + bw / 2;
730 break;
731 }
732
733 tda18271_calc_cal_pll(fe, N);
734
735 /* calculate main pll */
736
737 switch (priv->mode) {
738 case TDA18271_ANALOG:
739 N = freq - 250000;
740 break;
741 case TDA18271_DIGITAL:
742 N = freq + bw / 2 + 1000000;
743 break;
744 }
745
746 tda18271_calc_main_pll(fe, N);
747
748 ret = tda18271_write_regs(fe, R_EP3, 11);
749 if (tda_fail(ret))
750 return ret;
751
752 msleep(5); /* RF tracking filter calibration initialization */
753
754 /* search for K,M,CO for RF calibration */
755 tda18271_calc_km(fe, &freq);
756 tda18271_write_regs(fe, R_EB13, 1);
757
758 /* search for rf band */
759 tda18271_calc_rf_band(fe, &freq);
760
761 /* search for gain taper */
762 tda18271_calc_gain_taper(fe, &freq);
763
764 tda18271_write_regs(fe, R_EP2, 1);
765 tda18271_write_regs(fe, R_EP1, 1);
766 tda18271_write_regs(fe, R_EP2, 1);
767 tda18271_write_regs(fe, R_EP1, 1);
768
769 regs[R_EB4] &= 0x07;
770 regs[R_EB4] |= 0x40;
771 tda18271_write_regs(fe, R_EB4, 1);
772
773 regs[R_EB7] = 0x40;
774 tda18271_write_regs(fe, R_EB7, 1);
775 msleep(10); /* pll locking */
776
777 regs[R_EB20] = 0xec;
778 tda18271_write_regs(fe, R_EB20, 1);
779 msleep(60); /* RF tracking filter calibration completion */
780
781 regs[R_EP4] &= ~0x03; /* set cal mode to normal */
782 tda18271_write_regs(fe, R_EP4, 1);
783
784 tda18271_write_regs(fe, R_EP1, 1);
785
786 /* RF tracking filter correction for VHF_Low band */
787 if (0 == tda18271_calc_rf_cal(fe, &freq))
788 tda18271_write_regs(fe, R_EB14, 1);
789
790 return 0;
791 }
792
793 /* ------------------------------------------------------------------ */
794
795 static int tda18271_ir_cal_init(struct dvb_frontend *fe)
796 {
797 struct tda18271_priv *priv = fe->tuner_priv;
798 unsigned char *regs = priv->tda18271_regs;
799 int ret;
800
801 ret = tda18271_read_regs(fe);
802 if (tda_fail(ret))
803 goto fail;
804
805 /* test IR_CAL_OK to see if we need init */
806 if ((regs[R_EP1] & 0x08) == 0)
807 ret = tda18271_init_regs(fe);
808 fail:
809 return ret;
810 }
811
812 static int tda18271_init(struct dvb_frontend *fe)
813 {
814 struct tda18271_priv *priv = fe->tuner_priv;
815 int ret;
816
817 mutex_lock(&priv->lock);
818
819 /* full power up */
820 ret = tda18271_set_standby_mode(fe, 0, 0, 0);
821 if (tda_fail(ret))
822 goto fail;
823
824 /* initialization */
825 ret = tda18271_ir_cal_init(fe);
826 if (tda_fail(ret))
827 goto fail;
828
829 if (priv->id == TDA18271HDC2)
830 tda18271c2_rf_cal_init(fe);
831 fail:
832 mutex_unlock(&priv->lock);
833
834 return ret;
835 }
836
837 static int tda18271_sleep(struct dvb_frontend *fe)
838 {
839 struct tda18271_priv *priv = fe->tuner_priv;
840 int ret;
841
842 mutex_lock(&priv->lock);
843
844 /* enter standby mode, with required output features enabled */
845 ret = tda18271_toggle_output(fe, 1);
846
847 mutex_unlock(&priv->lock);
848
849 return ret;
850 }
851
852 /* ------------------------------------------------------------------ */
853
854 static int tda18271_agc(struct dvb_frontend *fe)
855 {
856 struct tda18271_priv *priv = fe->tuner_priv;
857 int ret = 0;
858
859 switch (priv->config) {
860 case TDA8290_LNA_OFF:
861 /* no external agc configuration required */
862 if (tda18271_debug & DBG_ADV)
863 tda_dbg("no agc configuration provided\n");
864 break;
865 case TDA8290_LNA_ON_BRIDGE:
866 /* switch with GPIO of saa713x */
867 tda_dbg("invoking callback\n");
868 if (fe->callback)
869 ret = fe->callback(priv->i2c_props.adap->algo_data,
870 DVB_FRONTEND_COMPONENT_TUNER,
871 TDA18271_CALLBACK_CMD_AGC_ENABLE,
872 priv->mode);
873 break;
874 case TDA8290_LNA_GP0_HIGH_ON:
875 case TDA8290_LNA_GP0_HIGH_OFF:
876 default:
877 /* n/a - currently not supported */
878 tda_err("unsupported configuration: %d\n", priv->config);
879 ret = -EINVAL;
880 break;
881 }
882 return ret;
883 }
884
885 static int tda18271_tune(struct dvb_frontend *fe,
886 struct tda18271_std_map_item *map, u32 freq, u32 bw)
887 {
888 struct tda18271_priv *priv = fe->tuner_priv;
889 int ret;
890
891 tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n",
892 freq, map->if_freq, bw, map->agc_mode, map->std);
893
894 ret = tda18271_agc(fe);
895 if (tda_fail(ret))
896 tda_warn("failed to configure agc\n");
897
898 ret = tda18271_init(fe);
899 if (tda_fail(ret))
900 goto fail;
901
902 mutex_lock(&priv->lock);
903
904 switch (priv->id) {
905 case TDA18271HDC1:
906 tda18271c1_rf_tracking_filter_calibration(fe, freq, bw);
907 break;
908 case TDA18271HDC2:
909 tda18271c2_rf_tracking_filters_correction(fe, freq);
910 break;
911 }
912 ret = tda18271_channel_configuration(fe, map, freq, bw);
913
914 mutex_unlock(&priv->lock);
915 fail:
916 return ret;
917 }
918
919 /* ------------------------------------------------------------------ */
920
921 static int tda18271_set_params(struct dvb_frontend *fe)
922 {
923 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
924 u32 delsys = c->delivery_system;
925 u32 bw = c->bandwidth_hz;
926 u32 freq = c->frequency;
927 struct tda18271_priv *priv = fe->tuner_priv;
928 struct tda18271_std_map *std_map = &priv->std;
929 struct tda18271_std_map_item *map;
930 int ret;
931
932 priv->mode = TDA18271_DIGITAL;
933
934 switch (delsys) {
935 case SYS_ATSC:
936 map = &std_map->atsc_6;
937 bw = 6000000;
938 break;
939 case SYS_ISDBT:
940 case SYS_DVBT:
941 case SYS_DVBT2:
942 if (bw <= 6000000) {
943 map = &std_map->dvbt_6;
944 } else if (bw <= 7000000) {
945 map = &std_map->dvbt_7;
946 } else {
947 map = &std_map->dvbt_8;
948 }
949 break;
950 case SYS_DVBC_ANNEX_B:
951 bw = 6000000;
952 fallthrough;
953 case SYS_DVBC_ANNEX_A:
954 case SYS_DVBC_ANNEX_C:
955 if (bw <= 6000000) {
956 map = &std_map->qam_6;
957 } else if (bw <= 7000000) {
958 map = &std_map->qam_7;
959 } else {
960 map = &std_map->qam_8;
961 }
962 break;
963 default:
964 tda_warn("modulation type not supported!\n");
965 return -EINVAL;
966 }
967
968 /* When tuning digital, the analog demod must be tri-stated */
969 if (fe->ops.analog_ops.standby)
970 fe->ops.analog_ops.standby(fe);
971
972 ret = tda18271_tune(fe, map, freq, bw);
973
974 if (tda_fail(ret))
975 goto fail;
976
977 priv->if_freq = map->if_freq;
978 priv->frequency = freq;
979 priv->bandwidth = bw;
980 fail:
981 return ret;
982 }
983
984 static int tda18271_set_analog_params(struct dvb_frontend *fe,
985 struct analog_parameters *params)
986 {
987 struct tda18271_priv *priv = fe->tuner_priv;
988 struct tda18271_std_map *std_map = &priv->std;
989 struct tda18271_std_map_item *map;
990 char *mode;
991 int ret;
992 u32 freq = params->frequency * 125 *
993 ((params->mode == V4L2_TUNER_RADIO) ? 1 : 1000) / 2;
994
995 priv->mode = TDA18271_ANALOG;
996
997 if (params->mode == V4L2_TUNER_RADIO) {
998 map = &std_map->fm_radio;
999 mode = "fm";
1000 } else if (params->std & V4L2_STD_MN) {
1001 map = &std_map->atv_mn;
1002 mode = "MN";
1003 } else if (params->std & V4L2_STD_B) {
1004 map = &std_map->atv_b;
1005 mode = "B";
1006 } else if (params->std & V4L2_STD_GH) {
1007 map = &std_map->atv_gh;
1008 mode = "GH";
1009 } else if (params->std & V4L2_STD_PAL_I) {
1010 map = &std_map->atv_i;
1011 mode = "I";
1012 } else if (params->std & V4L2_STD_DK) {
1013 map = &std_map->atv_dk;
1014 mode = "DK";
1015 } else if (params->std & V4L2_STD_SECAM_L) {
1016 map = &std_map->atv_l;
1017 mode = "L";
1018 } else if (params->std & V4L2_STD_SECAM_LC) {
1019 map = &std_map->atv_lc;
1020 mode = "L'";
1021 } else {
1022 map = &std_map->atv_i;
1023 mode = "xx";
1024 }
1025
1026 tda_dbg("setting tda18271 to system %s\n", mode);
1027
1028 ret = tda18271_tune(fe, map, freq, 0);
1029
1030 if (tda_fail(ret))
1031 goto fail;
1032
1033 priv->if_freq = map->if_freq;
1034 priv->frequency = freq;
1035 priv->bandwidth = 0;
1036 fail:
1037 return ret;
1038 }
1039
1040 static void tda18271_release(struct dvb_frontend *fe)
1041 {
1042 struct tda18271_priv *priv = fe->tuner_priv;
1043
1044 mutex_lock(&tda18271_list_mutex);
1045
1046 if (priv)
1047 hybrid_tuner_release_state(priv);
1048
1049 mutex_unlock(&tda18271_list_mutex);
1050
1051 fe->tuner_priv = NULL;
1052 }
1053
1054 static int tda18271_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1055 {
1056 struct tda18271_priv *priv = fe->tuner_priv;
1057 *frequency = priv->frequency;
1058 return 0;
1059 }
1060
1061 static int tda18271_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1062 {
1063 struct tda18271_priv *priv = fe->tuner_priv;
1064 *bandwidth = priv->bandwidth;
1065 return 0;
1066 }
1067
1068 static int tda18271_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
1069 {
1070 struct tda18271_priv *priv = fe->tuner_priv;
1071 *frequency = (u32)priv->if_freq * 1000;
1072 return 0;
1073 }
1074
1075 /* ------------------------------------------------------------------ */
1076
1077 #define tda18271_update_std(std_cfg, name) do { \
1078 if (map->std_cfg.if_freq + \
1079 map->std_cfg.agc_mode + map->std_cfg.std + \
1080 map->std_cfg.if_lvl + map->std_cfg.rfagc_top > 0) { \
1081 tda_dbg("Using custom std config for %s\n", name); \
1082 memcpy(&std->std_cfg, &map->std_cfg, \
1083 sizeof(struct tda18271_std_map_item)); \
1084 } } while (0)
1085
1086 #define tda18271_dump_std_item(std_cfg, name) do { \
1087 tda_dbg("(%s) if_freq = %d, agc_mode = %d, std = %d, " \
1088 "if_lvl = %d, rfagc_top = 0x%02x\n", \
1089 name, std->std_cfg.if_freq, \
1090 std->std_cfg.agc_mode, std->std_cfg.std, \
1091 std->std_cfg.if_lvl, std->std_cfg.rfagc_top); \
1092 } while (0)
1093
1094 static int tda18271_dump_std_map(struct dvb_frontend *fe)
1095 {
1096 struct tda18271_priv *priv = fe->tuner_priv;
1097 struct tda18271_std_map *std = &priv->std;
1098
1099 tda_dbg("========== STANDARD MAP SETTINGS ==========\n");
1100 tda18271_dump_std_item(fm_radio, " fm ");
1101 tda18271_dump_std_item(atv_b, "atv b ");
1102 tda18271_dump_std_item(atv_dk, "atv dk");
1103 tda18271_dump_std_item(atv_gh, "atv gh");
1104 tda18271_dump_std_item(atv_i, "atv i ");
1105 tda18271_dump_std_item(atv_l, "atv l ");
1106 tda18271_dump_std_item(atv_lc, "atv l'");
1107 tda18271_dump_std_item(atv_mn, "atv mn");
1108 tda18271_dump_std_item(atsc_6, "atsc 6");
1109 tda18271_dump_std_item(dvbt_6, "dvbt 6");
1110 tda18271_dump_std_item(dvbt_7, "dvbt 7");
1111 tda18271_dump_std_item(dvbt_8, "dvbt 8");
1112 tda18271_dump_std_item(qam_6, "qam 6 ");
1113 tda18271_dump_std_item(qam_7, "qam 7 ");
1114 tda18271_dump_std_item(qam_8, "qam 8 ");
1115
1116 return 0;
1117 }
1118
1119 static int tda18271_update_std_map(struct dvb_frontend *fe,
1120 struct tda18271_std_map *map)
1121 {
1122 struct tda18271_priv *priv = fe->tuner_priv;
1123 struct tda18271_std_map *std = &priv->std;
1124
1125 if (!map)
1126 return -EINVAL;
1127
1128 tda18271_update_std(fm_radio, "fm");
1129 tda18271_update_std(atv_b, "atv b");
1130 tda18271_update_std(atv_dk, "atv dk");
1131 tda18271_update_std(atv_gh, "atv gh");
1132 tda18271_update_std(atv_i, "atv i");
1133 tda18271_update_std(atv_l, "atv l");
1134 tda18271_update_std(atv_lc, "atv l'");
1135 tda18271_update_std(atv_mn, "atv mn");
1136 tda18271_update_std(atsc_6, "atsc 6");
1137 tda18271_update_std(dvbt_6, "dvbt 6");
1138 tda18271_update_std(dvbt_7, "dvbt 7");
1139 tda18271_update_std(dvbt_8, "dvbt 8");
1140 tda18271_update_std(qam_6, "qam 6");
1141 tda18271_update_std(qam_7, "qam 7");
1142 tda18271_update_std(qam_8, "qam 8");
1143
1144 return 0;
1145 }
1146
1147 static int tda18271_get_id(struct dvb_frontend *fe)
1148 {
1149 struct tda18271_priv *priv = fe->tuner_priv;
1150 unsigned char *regs = priv->tda18271_regs;
1151 char *name;
1152 int ret;
1153
1154 mutex_lock(&priv->lock);
1155 ret = tda18271_read_regs(fe);
1156 mutex_unlock(&priv->lock);
1157
1158 if (ret) {
1159 tda_info("Error reading device ID @ %d-%04x, bailing out.\n",
1160 i2c_adapter_id(priv->i2c_props.adap),
1161 priv->i2c_props.addr);
1162 return -EIO;
1163 }
1164
1165 switch (regs[R_ID] & 0x7f) {
1166 case 3:
1167 name = "TDA18271HD/C1";
1168 priv->id = TDA18271HDC1;
1169 break;
1170 case 4:
1171 name = "TDA18271HD/C2";
1172 priv->id = TDA18271HDC2;
1173 break;
1174 default:
1175 tda_info("Unknown device (%i) detected @ %d-%04x, device not supported.\n",
1176 regs[R_ID], i2c_adapter_id(priv->i2c_props.adap),
1177 priv->i2c_props.addr);
1178 return -EINVAL;
1179 }
1180
1181 tda_info("%s detected @ %d-%04x\n", name,
1182 i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr);
1183
1184 return 0;
1185 }
1186
1187 static int tda18271_setup_configuration(struct dvb_frontend *fe,
1188 struct tda18271_config *cfg)
1189 {
1190 struct tda18271_priv *priv = fe->tuner_priv;
1191
1192 priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO;
1193 priv->role = (cfg) ? cfg->role : TDA18271_MASTER;
1194 priv->config = (cfg) ? cfg->config : 0;
1195 priv->small_i2c = (cfg) ?
1196 cfg->small_i2c : TDA18271_39_BYTE_CHUNK_INIT;
1197 priv->output_opt = (cfg) ?
1198 cfg->output_opt : TDA18271_OUTPUT_LT_XT_ON;
1199
1200 return 0;
1201 }
1202
1203 static inline int tda18271_need_cal_on_startup(struct tda18271_config *cfg)
1204 {
1205 /* tda18271_cal_on_startup == -1 when cal module option is unset */
1206 return ((tda18271_cal_on_startup == -1) ?
1207 /* honor configuration setting */
1208 ((cfg) && (cfg->rf_cal_on_startup)) :
1209 /* module option overrides configuration setting */
1210 (tda18271_cal_on_startup)) ? 1 : 0;
1211 }
1212
1213 static int tda18271_set_config(struct dvb_frontend *fe, void *priv_cfg)
1214 {
1215 struct tda18271_config *cfg = (struct tda18271_config *) priv_cfg;
1216
1217 tda18271_setup_configuration(fe, cfg);
1218
1219 if (tda18271_need_cal_on_startup(cfg))
1220 tda18271_init(fe);
1221
1222 /* override default std map with values in config struct */
1223 if ((cfg) && (cfg->std_map))
1224 tda18271_update_std_map(fe, cfg->std_map);
1225
1226 return 0;
1227 }
1228
1229 static const struct dvb_tuner_ops tda18271_tuner_ops = {
1230 .info = {
1231 .name = "NXP TDA18271HD",
1232 .frequency_min_hz = 45 * MHz,
1233 .frequency_max_hz = 864 * MHz,
1234 .frequency_step_hz = 62500
1235 },
1236 .init = tda18271_init,
1237 .sleep = tda18271_sleep,
1238 .set_params = tda18271_set_params,
1239 .set_analog_params = tda18271_set_analog_params,
1240 .release = tda18271_release,
1241 .set_config = tda18271_set_config,
1242 .get_frequency = tda18271_get_frequency,
1243 .get_bandwidth = tda18271_get_bandwidth,
1244 .get_if_frequency = tda18271_get_if_frequency,
1245 };
1246
1247 struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
1248 struct i2c_adapter *i2c,
1249 struct tda18271_config *cfg)
1250 {
1251 struct tda18271_priv *priv = NULL;
1252 int instance, ret;
1253
1254 mutex_lock(&tda18271_list_mutex);
1255
1256 instance = hybrid_tuner_request_state(struct tda18271_priv, priv,
1257 hybrid_tuner_instance_list,
1258 i2c, addr, "tda18271");
1259 switch (instance) {
1260 case 0:
1261 goto fail;
1262 case 1:
1263 /* new tuner instance */
1264 fe->tuner_priv = priv;
1265
1266 tda18271_setup_configuration(fe, cfg);
1267
1268 priv->cal_initialized = false;
1269 mutex_init(&priv->lock);
1270
1271 ret = tda18271_get_id(fe);
1272 if (tda_fail(ret))
1273 goto fail;
1274
1275 ret = tda18271_assign_map_layout(fe);
1276 if (tda_fail(ret))
1277 goto fail;
1278
1279 /* if delay_cal is set, delay IR & RF calibration until init()
1280 * module option 'cal' overrides this delay */
1281 if ((cfg->delay_cal) && (!tda18271_need_cal_on_startup(cfg)))
1282 break;
1283
1284 mutex_lock(&priv->lock);
1285 tda18271_init_regs(fe);
1286
1287 if ((tda18271_need_cal_on_startup(cfg)) &&
1288 (priv->id == TDA18271HDC2))
1289 tda18271c2_rf_cal_init(fe);
1290
1291 /* enter standby mode, with required output features enabled */
1292 ret = tda18271_toggle_output(fe, 1);
1293 tda_fail(ret);
1294
1295 mutex_unlock(&priv->lock);
1296 break;
1297 default:
1298 /* existing tuner instance */
1299 fe->tuner_priv = priv;
1300
1301 /* allow dvb driver to override configuration settings */
1302 if (cfg) {
1303 if (cfg->gate != TDA18271_GATE_ANALOG)
1304 priv->gate = cfg->gate;
1305 if (cfg->role)
1306 priv->role = cfg->role;
1307 if (cfg->config)
1308 priv->config = cfg->config;
1309 if (cfg->small_i2c)
1310 priv->small_i2c = cfg->small_i2c;
1311 if (cfg->output_opt)
1312 priv->output_opt = cfg->output_opt;
1313 if (cfg->std_map)
1314 tda18271_update_std_map(fe, cfg->std_map);
1315 }
1316 if (tda18271_need_cal_on_startup(cfg))
1317 tda18271_init(fe);
1318 break;
1319 }
1320
1321 /* override default std map with values in config struct */
1322 if ((cfg) && (cfg->std_map))
1323 tda18271_update_std_map(fe, cfg->std_map);
1324
1325 mutex_unlock(&tda18271_list_mutex);
1326
1327 memcpy(&fe->ops.tuner_ops, &tda18271_tuner_ops,
1328 sizeof(struct dvb_tuner_ops));
1329
1330 if (tda18271_debug & (DBG_MAP | DBG_ADV))
1331 tda18271_dump_std_map(fe);
1332
1333 return fe;
1334 fail:
1335 mutex_unlock(&tda18271_list_mutex);
1336
1337 tda18271_release(fe);
1338 return NULL;
1339 }
1340 EXPORT_SYMBOL_GPL(tda18271_attach);
1341 MODULE_DESCRIPTION("NXP TDA18271HD analog / digital tuner driver");
1342 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
1343 MODULE_LICENSE("GPL");
1344 MODULE_VERSION("0.4");
Kernel DRM miscellaneous fixes and cross-tree changes