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drm/tests: hdmi: Fix memory leaks in drm_display_mode_from_cea_vic()
[drm/drm-misc.git] / drivers / media / tuners / tda18271-fe.c
bloba7e721baaa997f24e20e152dff8c5494fee839e5
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 tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt);
283
284 /* calculate temperature compensation */
285 rfcal_comp = dc_over_dt * (s32)(tm_current - priv->tm_rfcal) / 1000;
286
287 regs[R_EB14] = (unsigned char)(approx + rfcal_comp);
288 ret = tda18271_write_regs(fe, R_EB14, 1);
289 fail:
290 return ret;
291 }
292
293 static int tda18271_por(struct dvb_frontend *fe)
294 {
295 struct tda18271_priv *priv = fe->tuner_priv;
296 unsigned char *regs = priv->tda18271_regs;
297 int ret;
298
299 /* power up detector 1 */
300 regs[R_EB12] &= ~0x20;
301 ret = tda18271_write_regs(fe, R_EB12, 1);
302 if (tda_fail(ret))
303 goto fail;
304
305 regs[R_EB18] &= ~0x80; /* turn agc1 loop on */
306 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
307 ret = tda18271_write_regs(fe, R_EB18, 1);
308 if (tda_fail(ret))
309 goto fail;
310
311 regs[R_EB21] |= 0x03; /* set agc2_gain to -6 dB */
312
313 /* POR mode */
314 ret = tda18271_set_standby_mode(fe, 1, 0, 0);
315 if (tda_fail(ret))
316 goto fail;
317
318 /* disable 1.5 MHz low pass filter */
319 regs[R_EB23] &= ~0x04; /* forcelp_fc2_en = 0 */
320 regs[R_EB23] &= ~0x02; /* XXX: lp_fc[2] = 0 */
321 ret = tda18271_write_regs(fe, R_EB21, 3);
322 fail:
323 return ret;
324 }
325
326 static int tda18271_calibrate_rf(struct dvb_frontend *fe, u32 freq)
327 {
328 struct tda18271_priv *priv = fe->tuner_priv;
329 unsigned char *regs = priv->tda18271_regs;
330 u32 N;
331
332 /* set CAL mode to normal */
333 regs[R_EP4] &= ~0x03;
334 tda18271_write_regs(fe, R_EP4, 1);
335
336 /* switch off agc1 */
337 regs[R_EP3] |= 0x40; /* sm_lt = 1 */
338
339 regs[R_EB18] |= 0x03; /* set agc1_gain to 15 dB */
340 tda18271_write_regs(fe, R_EB18, 1);
341
342 /* frequency dependent parameters */
343
344 tda18271_calc_bp_filter(fe, &freq);
345 tda18271_calc_gain_taper(fe, &freq);
346 tda18271_calc_rf_band(fe, &freq);
347 tda18271_calc_km(fe, &freq);
348
349 tda18271_write_regs(fe, R_EP1, 3);
350 tda18271_write_regs(fe, R_EB13, 1);
351
352 /* main pll charge pump source */
353 tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 1);
354
355 /* cal pll charge pump source */
356 tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 1);
357
358 /* force dcdc converter to 0 V */
359 regs[R_EB14] = 0x00;
360 tda18271_write_regs(fe, R_EB14, 1);
361
362 /* disable plls lock */
363 regs[R_EB20] &= ~0x20;
364 tda18271_write_regs(fe, R_EB20, 1);
365
366 /* set CAL mode to RF tracking filter calibration */
367 regs[R_EP4] |= 0x03;
368 tda18271_write_regs(fe, R_EP4, 2);
369
370 /* --------------------------------------------------------------- */
371
372 /* set the internal calibration signal */
373 N = freq;
374
375 tda18271_calc_cal_pll(fe, N);
376 tda18271_write_regs(fe, R_CPD, 4);
377
378 /* downconvert internal calibration */
379 N += 1000000;
380
381 tda18271_calc_main_pll(fe, N);
382 tda18271_write_regs(fe, R_MPD, 4);
383
384 msleep(5);
385
386 tda18271_write_regs(fe, R_EP2, 1);
387 tda18271_write_regs(fe, R_EP1, 1);
388 tda18271_write_regs(fe, R_EP2, 1);
389 tda18271_write_regs(fe, R_EP1, 1);
390
391 /* --------------------------------------------------------------- */
392
393 /* normal operation for the main pll */
394 tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 0);
395
396 /* normal operation for the cal pll */
397 tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 0);
398
399 msleep(10); /* plls locking */
400
401 /* launch the rf tracking filters calibration */
402 regs[R_EB20] |= 0x20;
403 tda18271_write_regs(fe, R_EB20, 1);
404
405 msleep(60); /* calibration */
406
407 /* --------------------------------------------------------------- */
408
409 /* set CAL mode to normal */
410 regs[R_EP4] &= ~0x03;
411
412 /* switch on agc1 */
413 regs[R_EP3] &= ~0x40; /* sm_lt = 0 */
414
415 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
416 tda18271_write_regs(fe, R_EB18, 1);
417
418 tda18271_write_regs(fe, R_EP3, 2);
419
420 /* synchronization */
421 tda18271_write_regs(fe, R_EP1, 1);
422
423 /* get calibration result */
424 tda18271_read_extended(fe);
425
426 return regs[R_EB14];
427 }
428
429 static int tda18271_powerscan(struct dvb_frontend *fe,
430 u32 *freq_in, u32 *freq_out)
431 {
432 struct tda18271_priv *priv = fe->tuner_priv;
433 unsigned char *regs = priv->tda18271_regs;
434 int sgn, bcal, count, wait, ret;
435 u8 cid_target;
436 u16 count_limit;
437 u32 freq;
438
439 freq = *freq_in;
440
441 tda18271_calc_rf_band(fe, &freq);
442 tda18271_calc_rf_cal(fe, &freq);
443 tda18271_calc_gain_taper(fe, &freq);
444 tda18271_lookup_cid_target(fe, &freq, &cid_target, &count_limit);
445
446 tda18271_write_regs(fe, R_EP2, 1);
447 tda18271_write_regs(fe, R_EB14, 1);
448
449 /* downconvert frequency */
450 freq += 1000000;
451
452 tda18271_calc_main_pll(fe, freq);
453 tda18271_write_regs(fe, R_MPD, 4);
454
455 msleep(5); /* pll locking */
456
457 /* detection mode */
458 regs[R_EP4] &= ~0x03;
459 regs[R_EP4] |= 0x01;
460 tda18271_write_regs(fe, R_EP4, 1);
461
462 /* launch power detection measurement */
463 tda18271_write_regs(fe, R_EP2, 1);
464
465 /* read power detection info, stored in EB10 */
466 ret = tda18271_read_extended(fe);
467 if (tda_fail(ret))
468 return ret;
469
470 /* algorithm initialization */
471 sgn = 1;
472 *freq_out = *freq_in;
473 count = 0;
474 wait = false;
475
476 while ((regs[R_EB10] & 0x3f) < cid_target) {
477 /* downconvert updated freq to 1 MHz */
478 freq = *freq_in + (sgn * count) + 1000000;
479
480 tda18271_calc_main_pll(fe, freq);
481 tda18271_write_regs(fe, R_MPD, 4);
482
483 if (wait) {
484 msleep(5); /* pll locking */
485 wait = false;
486 } else
487 udelay(100); /* pll locking */
488
489 /* launch power detection measurement */
490 tda18271_write_regs(fe, R_EP2, 1);
491
492 /* read power detection info, stored in EB10 */
493 ret = tda18271_read_extended(fe);
494 if (tda_fail(ret))
495 return ret;
496
497 count += 200;
498
499 if (count <= count_limit)
500 continue;
501
502 if (sgn <= 0)
503 break;
504
505 sgn = -1 * sgn;
506 count = 200;
507 wait = true;
508 }
509
510 if ((regs[R_EB10] & 0x3f) >= cid_target) {
511 bcal = 1;
512 *freq_out = freq - 1000000;
513 } else
514 bcal = 0;
515
516 tda_cal("bcal = %d, freq_in = %d, freq_out = %d (freq = %d)\n",
517 bcal, *freq_in, *freq_out, freq);
518
519 return bcal;
520 }
521
522 static int tda18271_powerscan_init(struct dvb_frontend *fe)
523 {
524 struct tda18271_priv *priv = fe->tuner_priv;
525 unsigned char *regs = priv->tda18271_regs;
526 int ret;
527
528 /* set standard to digital */
529 regs[R_EP3] &= ~0x1f; /* clear std bits */
530 regs[R_EP3] |= 0x12;
531
532 /* set cal mode to normal */
533 regs[R_EP4] &= ~0x03;
534
535 /* update IF output level */
536 regs[R_EP4] &= ~0x1c; /* clear if level bits */
537
538 ret = tda18271_write_regs(fe, R_EP3, 2);
539 if (tda_fail(ret))
540 goto fail;
541
542 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
543 ret = tda18271_write_regs(fe, R_EB18, 1);
544 if (tda_fail(ret))
545 goto fail;
546
547 regs[R_EB21] &= ~0x03; /* set agc2_gain to -15 dB */
548
549 /* 1.5 MHz low pass filter */
550 regs[R_EB23] |= 0x04; /* forcelp_fc2_en = 1 */
551 regs[R_EB23] |= 0x02; /* lp_fc[2] = 1 */
552
553 ret = tda18271_write_regs(fe, R_EB21, 3);
554 fail:
555 return ret;
556 }
557
558 static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq)
559 {
560 struct tda18271_priv *priv = fe->tuner_priv;
561 struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;
562 unsigned char *regs = priv->tda18271_regs;
563 int bcal, rf, i;
564 s32 divisor, dividend;
565 #define RF1 0
566 #define RF2 1
567 #define RF3 2
568 u32 rf_default[3];
569 u32 rf_freq[3];
570 s32 prog_cal[3];
571 s32 prog_tab[3];
572
573 i = tda18271_lookup_rf_band(fe, &freq, NULL);
574
575 if (tda_fail(i))
576 return i;
577
578 rf_default[RF1] = 1000 * map[i].rf1_def;
579 rf_default[RF2] = 1000 * map[i].rf2_def;
580 rf_default[RF3] = 1000 * map[i].rf3_def;
581
582 for (rf = RF1; rf <= RF3; rf++) {
583 if (0 == rf_default[rf])
584 return 0;
585 tda_cal("freq = %d, rf = %d\n", freq, rf);
586
587 /* look for optimized calibration frequency */
588 bcal = tda18271_powerscan(fe, &rf_default[rf], &rf_freq[rf]);
589 if (tda_fail(bcal))
590 return bcal;
591
592 tda18271_calc_rf_cal(fe, &rf_freq[rf]);
593 prog_tab[rf] = (s32)regs[R_EB14];
594
595 if (1 == bcal)
596 prog_cal[rf] =
597 (s32)tda18271_calibrate_rf(fe, rf_freq[rf]);
598 else
599 prog_cal[rf] = prog_tab[rf];
600
601 switch (rf) {
602 case RF1:
603 map[i].rf_a1 = 0;
604 map[i].rf_b1 = (prog_cal[RF1] - prog_tab[RF1]);
605 map[i].rf1 = rf_freq[RF1] / 1000;
606 break;
607 case RF2:
608 dividend = (prog_cal[RF2] - prog_tab[RF2] -
609 prog_cal[RF1] + prog_tab[RF1]);
610 divisor = (s32)(rf_freq[RF2] - rf_freq[RF1]) / 1000;
611 map[i].rf_a1 = (dividend / divisor);
612 map[i].rf2 = rf_freq[RF2] / 1000;
613 break;
614 case RF3:
615 dividend = (prog_cal[RF3] - prog_tab[RF3] -
616 prog_cal[RF2] + prog_tab[RF2]);
617 divisor = (s32)(rf_freq[RF3] - rf_freq[RF2]) / 1000;
618 map[i].rf_a2 = (dividend / divisor);
619 map[i].rf_b2 = (prog_cal[RF2] - prog_tab[RF2]);
620 map[i].rf3 = rf_freq[RF3] / 1000;
621 break;
622 default:
623 BUG();
624 }
625 }
626
627 return 0;
628 }
629
630 static int tda18271_calc_rf_filter_curve(struct dvb_frontend *fe)
631 {
632 struct tda18271_priv *priv = fe->tuner_priv;
633 unsigned int i;
634 int ret;
635
636 tda_info("performing RF tracking filter calibration\n");
637
638 /* wait for die temperature stabilization */
639 msleep(200);
640
641 ret = tda18271_powerscan_init(fe);
642 if (tda_fail(ret))
643 goto fail;
644
645 /* rf band calibration */
646 for (i = 0; priv->rf_cal_state[i].rfmax != 0; i++) {
647 ret =
648 tda18271_rf_tracking_filters_init(fe, 1000 *
649 priv->rf_cal_state[i].rfmax);
650 if (tda_fail(ret))
651 goto fail;
652 }
653
654 priv->tm_rfcal = tda18271_read_thermometer(fe);
655 fail:
656 return ret;
657 }
658
659 /* ------------------------------------------------------------------ */
660
661 static int tda18271c2_rf_cal_init(struct dvb_frontend *fe)
662 {
663 struct tda18271_priv *priv = fe->tuner_priv;
664 unsigned char *regs = priv->tda18271_regs;
665 int ret;
666
667 /* test RF_CAL_OK to see if we need init */
668 if ((regs[R_EP1] & 0x10) == 0)
669 priv->cal_initialized = false;
670
671 if (priv->cal_initialized)
672 return 0;
673
674 ret = tda18271_calc_rf_filter_curve(fe);
675 if (tda_fail(ret))
676 goto fail;
677
678 ret = tda18271_por(fe);
679 if (tda_fail(ret))
680 goto fail;
681
682 tda_info("RF tracking filter calibration complete\n");
683
684 priv->cal_initialized = true;
685 goto end;
686 fail:
687 tda_info("RF tracking filter calibration failed!\n");
688 end:
689 return ret;
690 }
691
692 static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
693 u32 freq, u32 bw)
694 {
695 struct tda18271_priv *priv = fe->tuner_priv;
696 unsigned char *regs = priv->tda18271_regs;
697 int ret;
698 u32 N = 0;
699
700 /* calculate bp filter */
701 tda18271_calc_bp_filter(fe, &freq);
702 tda18271_write_regs(fe, R_EP1, 1);
703
704 regs[R_EB4] &= 0x07;
705 regs[R_EB4] |= 0x60;
706 tda18271_write_regs(fe, R_EB4, 1);
707
708 regs[R_EB7] = 0x60;
709 tda18271_write_regs(fe, R_EB7, 1);
710
711 regs[R_EB14] = 0x00;
712 tda18271_write_regs(fe, R_EB14, 1);
713
714 regs[R_EB20] = 0xcc;
715 tda18271_write_regs(fe, R_EB20, 1);
716
717 /* set cal mode to RF tracking filter calibration */
718 regs[R_EP4] |= 0x03;
719
720 /* calculate cal pll */
721
722 switch (priv->mode) {
723 case TDA18271_ANALOG:
724 N = freq - 1250000;
725 break;
726 case TDA18271_DIGITAL:
727 N = freq + bw / 2;
728 break;
729 }
730
731 tda18271_calc_cal_pll(fe, N);
732
733 /* calculate main pll */
734
735 switch (priv->mode) {
736 case TDA18271_ANALOG:
737 N = freq - 250000;
738 break;
739 case TDA18271_DIGITAL:
740 N = freq + bw / 2 + 1000000;
741 break;
742 }
743
744 tda18271_calc_main_pll(fe, N);
745
746 ret = tda18271_write_regs(fe, R_EP3, 11);
747 if (tda_fail(ret))
748 return ret;
749
750 msleep(5); /* RF tracking filter calibration initialization */
751
752 /* search for K,M,CO for RF calibration */
753 tda18271_calc_km(fe, &freq);
754 tda18271_write_regs(fe, R_EB13, 1);
755
756 /* search for rf band */
757 tda18271_calc_rf_band(fe, &freq);
758
759 /* search for gain taper */
760 tda18271_calc_gain_taper(fe, &freq);
761
762 tda18271_write_regs(fe, R_EP2, 1);
763 tda18271_write_regs(fe, R_EP1, 1);
764 tda18271_write_regs(fe, R_EP2, 1);
765 tda18271_write_regs(fe, R_EP1, 1);
766
767 regs[R_EB4] &= 0x07;
768 regs[R_EB4] |= 0x40;
769 tda18271_write_regs(fe, R_EB4, 1);
770
771 regs[R_EB7] = 0x40;
772 tda18271_write_regs(fe, R_EB7, 1);
773 msleep(10); /* pll locking */
774
775 regs[R_EB20] = 0xec;
776 tda18271_write_regs(fe, R_EB20, 1);
777 msleep(60); /* RF tracking filter calibration completion */
778
779 regs[R_EP4] &= ~0x03; /* set cal mode to normal */
780 tda18271_write_regs(fe, R_EP4, 1);
781
782 tda18271_write_regs(fe, R_EP1, 1);
783
784 /* RF tracking filter correction for VHF_Low band */
785 if (0 == tda18271_calc_rf_cal(fe, &freq))
786 tda18271_write_regs(fe, R_EB14, 1);
787
788 return 0;
789 }
790
791 /* ------------------------------------------------------------------ */
792
793 static int tda18271_ir_cal_init(struct dvb_frontend *fe)
794 {
795 struct tda18271_priv *priv = fe->tuner_priv;
796 unsigned char *regs = priv->tda18271_regs;
797 int ret;
798
799 ret = tda18271_read_regs(fe);
800 if (tda_fail(ret))
801 goto fail;
802
803 /* test IR_CAL_OK to see if we need init */
804 if ((regs[R_EP1] & 0x08) == 0)
805 ret = tda18271_init_regs(fe);
806 fail:
807 return ret;
808 }
809
810 static int tda18271_init(struct dvb_frontend *fe)
811 {
812 struct tda18271_priv *priv = fe->tuner_priv;
813 int ret;
814
815 mutex_lock(&priv->lock);
816
817 /* full power up */
818 ret = tda18271_set_standby_mode(fe, 0, 0, 0);
819 if (tda_fail(ret))
820 goto fail;
821
822 /* initialization */
823 ret = tda18271_ir_cal_init(fe);
824 if (tda_fail(ret))
825 goto fail;
826
827 if (priv->id == TDA18271HDC2)
828 tda18271c2_rf_cal_init(fe);
829 fail:
830 mutex_unlock(&priv->lock);
831
832 return ret;
833 }
834
835 static int tda18271_sleep(struct dvb_frontend *fe)
836 {
837 struct tda18271_priv *priv = fe->tuner_priv;
838 int ret;
839
840 mutex_lock(&priv->lock);
841
842 /* enter standby mode, with required output features enabled */
843 ret = tda18271_toggle_output(fe, 1);
844
845 mutex_unlock(&priv->lock);
846
847 return ret;
848 }
849
850 /* ------------------------------------------------------------------ */
851
852 static int tda18271_agc(struct dvb_frontend *fe)
853 {
854 struct tda18271_priv *priv = fe->tuner_priv;
855 int ret = 0;
856
857 switch (priv->config) {
858 case TDA8290_LNA_OFF:
859 /* no external agc configuration required */
860 if (tda18271_debug & DBG_ADV)
861 tda_dbg("no agc configuration provided\n");
862 break;
863 case TDA8290_LNA_ON_BRIDGE:
864 /* switch with GPIO of saa713x */
865 tda_dbg("invoking callback\n");
866 if (fe->callback)
867 ret = fe->callback(priv->i2c_props.adap->algo_data,
868 DVB_FRONTEND_COMPONENT_TUNER,
869 TDA18271_CALLBACK_CMD_AGC_ENABLE,
870 priv->mode);
871 break;
872 case TDA8290_LNA_GP0_HIGH_ON:
873 case TDA8290_LNA_GP0_HIGH_OFF:
874 default:
875 /* n/a - currently not supported */
876 tda_err("unsupported configuration: %d\n", priv->config);
877 ret = -EINVAL;
878 break;
879 }
880 return ret;
881 }
882
883 static int tda18271_tune(struct dvb_frontend *fe,
884 struct tda18271_std_map_item *map, u32 freq, u32 bw)
885 {
886 struct tda18271_priv *priv = fe->tuner_priv;
887 int ret;
888
889 tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n",
890 freq, map->if_freq, bw, map->agc_mode, map->std);
891
892 ret = tda18271_agc(fe);
893 if (tda_fail(ret))
894 tda_warn("failed to configure agc\n");
895
896 ret = tda18271_init(fe);
897 if (tda_fail(ret))
898 goto fail;
899
900 mutex_lock(&priv->lock);
901
902 switch (priv->id) {
903 case TDA18271HDC1:
904 tda18271c1_rf_tracking_filter_calibration(fe, freq, bw);
905 break;
906 case TDA18271HDC2:
907 tda18271c2_rf_tracking_filters_correction(fe, freq);
908 break;
909 }
910 ret = tda18271_channel_configuration(fe, map, freq, bw);
911
912 mutex_unlock(&priv->lock);
913 fail:
914 return ret;
915 }
916
917 /* ------------------------------------------------------------------ */
918
919 static int tda18271_set_params(struct dvb_frontend *fe)
920 {
921 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
922 u32 delsys = c->delivery_system;
923 u32 bw = c->bandwidth_hz;
924 u32 freq = c->frequency;
925 struct tda18271_priv *priv = fe->tuner_priv;
926 struct tda18271_std_map *std_map = &priv->std;
927 struct tda18271_std_map_item *map;
928 int ret;
929
930 priv->mode = TDA18271_DIGITAL;
931
932 switch (delsys) {
933 case SYS_ATSC:
934 map = &std_map->atsc_6;
935 bw = 6000000;
936 break;
937 case SYS_ISDBT:
938 case SYS_DVBT:
939 case SYS_DVBT2:
940 if (bw <= 6000000) {
941 map = &std_map->dvbt_6;
942 } else if (bw <= 7000000) {
943 map = &std_map->dvbt_7;
944 } else {
945 map = &std_map->dvbt_8;
946 }
947 break;
948 case SYS_DVBC_ANNEX_B:
949 bw = 6000000;
950 fallthrough;
951 case SYS_DVBC_ANNEX_A:
952 case SYS_DVBC_ANNEX_C:
953 if (bw <= 6000000) {
954 map = &std_map->qam_6;
955 } else if (bw <= 7000000) {
956 map = &std_map->qam_7;
957 } else {
958 map = &std_map->qam_8;
959 }
960 break;
961 default:
962 tda_warn("modulation type not supported!\n");
963 return -EINVAL;
964 }
965
966 /* When tuning digital, the analog demod must be tri-stated */
967 if (fe->ops.analog_ops.standby)
968 fe->ops.analog_ops.standby(fe);
969
970 ret = tda18271_tune(fe, map, freq, bw);
971
972 if (tda_fail(ret))
973 goto fail;
974
975 priv->if_freq = map->if_freq;
976 priv->frequency = freq;
977 priv->bandwidth = bw;
978 fail:
979 return ret;
980 }
981
982 static int tda18271_set_analog_params(struct dvb_frontend *fe,
983 struct analog_parameters *params)
984 {
985 struct tda18271_priv *priv = fe->tuner_priv;
986 struct tda18271_std_map *std_map = &priv->std;
987 struct tda18271_std_map_item *map;
988 char *mode;
989 int ret;
990 u32 freq = params->frequency * 125 *
991 ((params->mode == V4L2_TUNER_RADIO) ? 1 : 1000) / 2;
992
993 priv->mode = TDA18271_ANALOG;
994
995 if (params->mode == V4L2_TUNER_RADIO) {
996 map = &std_map->fm_radio;
997 mode = "fm";
998 } else if (params->std & V4L2_STD_MN) {
999 map = &std_map->atv_mn;
1000 mode = "MN";
1001 } else if (params->std & V4L2_STD_B) {
1002 map = &std_map->atv_b;
1003 mode = "B";
1004 } else if (params->std & V4L2_STD_GH) {
1005 map = &std_map->atv_gh;
1006 mode = "GH";
1007 } else if (params->std & V4L2_STD_PAL_I) {
1008 map = &std_map->atv_i;
1009 mode = "I";
1010 } else if (params->std & V4L2_STD_DK) {
1011 map = &std_map->atv_dk;
1012 mode = "DK";
1013 } else if (params->std & V4L2_STD_SECAM_L) {
1014 map = &std_map->atv_l;
1015 mode = "L";
1016 } else if (params->std & V4L2_STD_SECAM_LC) {
1017 map = &std_map->atv_lc;
1018 mode = "L'";
1019 } else {
1020 map = &std_map->atv_i;
1021 mode = "xx";
1022 }
1023
1024 tda_dbg("setting tda18271 to system %s\n", mode);
1025
1026 ret = tda18271_tune(fe, map, freq, 0);
1027
1028 if (tda_fail(ret))
1029 goto fail;
1030
1031 priv->if_freq = map->if_freq;
1032 priv->frequency = freq;
1033 priv->bandwidth = 0;
1034 fail:
1035 return ret;
1036 }
1037
1038 static void tda18271_release(struct dvb_frontend *fe)
1039 {
1040 struct tda18271_priv *priv = fe->tuner_priv;
1041
1042 mutex_lock(&tda18271_list_mutex);
1043
1044 if (priv)
1045 hybrid_tuner_release_state(priv);
1046
1047 mutex_unlock(&tda18271_list_mutex);
1048
1049 fe->tuner_priv = NULL;
1050 }
1051
1052 static int tda18271_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1053 {
1054 struct tda18271_priv *priv = fe->tuner_priv;
1055 *frequency = priv->frequency;
1056 return 0;
1057 }
1058
1059 static int tda18271_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1060 {
1061 struct tda18271_priv *priv = fe->tuner_priv;
1062 *bandwidth = priv->bandwidth;
1063 return 0;
1064 }
1065
1066 static int tda18271_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
1067 {
1068 struct tda18271_priv *priv = fe->tuner_priv;
1069 *frequency = (u32)priv->if_freq * 1000;
1070 return 0;
1071 }
1072
1073 /* ------------------------------------------------------------------ */
1074
1075 #define tda18271_update_std(std_cfg, name) do { \
1076 if (map->std_cfg.if_freq + \
1077 map->std_cfg.agc_mode + map->std_cfg.std + \
1078 map->std_cfg.if_lvl + map->std_cfg.rfagc_top > 0) { \
1079 tda_dbg("Using custom std config for %s\n", name); \
1080 memcpy(&std->std_cfg, &map->std_cfg, \
1081 sizeof(struct tda18271_std_map_item)); \
1082 } } while (0)
1083
1084 #define tda18271_dump_std_item(std_cfg, name) do { \
1085 tda_dbg("(%s) if_freq = %d, agc_mode = %d, std = %d, " \
1086 "if_lvl = %d, rfagc_top = 0x%02x\n", \
1087 name, std->std_cfg.if_freq, \
1088 std->std_cfg.agc_mode, std->std_cfg.std, \
1089 std->std_cfg.if_lvl, std->std_cfg.rfagc_top); \
1090 } while (0)
1091
1092 static int tda18271_dump_std_map(struct dvb_frontend *fe)
1093 {
1094 struct tda18271_priv *priv = fe->tuner_priv;
1095 struct tda18271_std_map *std = &priv->std;
1096
1097 tda_dbg("========== STANDARD MAP SETTINGS ==========\n");
1098 tda18271_dump_std_item(fm_radio, " fm ");
1099 tda18271_dump_std_item(atv_b, "atv b ");
1100 tda18271_dump_std_item(atv_dk, "atv dk");
1101 tda18271_dump_std_item(atv_gh, "atv gh");
1102 tda18271_dump_std_item(atv_i, "atv i ");
1103 tda18271_dump_std_item(atv_l, "atv l ");
1104 tda18271_dump_std_item(atv_lc, "atv l'");
1105 tda18271_dump_std_item(atv_mn, "atv mn");
1106 tda18271_dump_std_item(atsc_6, "atsc 6");
1107 tda18271_dump_std_item(dvbt_6, "dvbt 6");
1108 tda18271_dump_std_item(dvbt_7, "dvbt 7");
1109 tda18271_dump_std_item(dvbt_8, "dvbt 8");
1110 tda18271_dump_std_item(qam_6, "qam 6 ");
1111 tda18271_dump_std_item(qam_7, "qam 7 ");
1112 tda18271_dump_std_item(qam_8, "qam 8 ");
1113
1114 return 0;
1115 }
1116
1117 static int tda18271_update_std_map(struct dvb_frontend *fe,
1118 struct tda18271_std_map *map)
1119 {
1120 struct tda18271_priv *priv = fe->tuner_priv;
1121 struct tda18271_std_map *std = &priv->std;
1122
1123 if (!map)
1124 return -EINVAL;
1125
1126 tda18271_update_std(fm_radio, "fm");
1127 tda18271_update_std(atv_b, "atv b");
1128 tda18271_update_std(atv_dk, "atv dk");
1129 tda18271_update_std(atv_gh, "atv gh");
1130 tda18271_update_std(atv_i, "atv i");
1131 tda18271_update_std(atv_l, "atv l");
1132 tda18271_update_std(atv_lc, "atv l'");
1133 tda18271_update_std(atv_mn, "atv mn");
1134 tda18271_update_std(atsc_6, "atsc 6");
1135 tda18271_update_std(dvbt_6, "dvbt 6");
1136 tda18271_update_std(dvbt_7, "dvbt 7");
1137 tda18271_update_std(dvbt_8, "dvbt 8");
1138 tda18271_update_std(qam_6, "qam 6");
1139 tda18271_update_std(qam_7, "qam 7");
1140 tda18271_update_std(qam_8, "qam 8");
1141
1142 return 0;
1143 }
1144
1145 static int tda18271_get_id(struct dvb_frontend *fe)
1146 {
1147 struct tda18271_priv *priv = fe->tuner_priv;
1148 unsigned char *regs = priv->tda18271_regs;
1149 char *name;
1150 int ret;
1151
1152 mutex_lock(&priv->lock);
1153 ret = tda18271_read_regs(fe);
1154 mutex_unlock(&priv->lock);
1155
1156 if (ret) {
1157 tda_info("Error reading device ID @ %d-%04x, bailing out.\n",
1158 i2c_adapter_id(priv->i2c_props.adap),
1159 priv->i2c_props.addr);
1160 return -EIO;
1161 }
1162
1163 switch (regs[R_ID] & 0x7f) {
1164 case 3:
1165 name = "TDA18271HD/C1";
1166 priv->id = TDA18271HDC1;
1167 break;
1168 case 4:
1169 name = "TDA18271HD/C2";
1170 priv->id = TDA18271HDC2;
1171 break;
1172 default:
1173 tda_info("Unknown device (%i) detected @ %d-%04x, device not supported.\n",
1174 regs[R_ID], i2c_adapter_id(priv->i2c_props.adap),
1175 priv->i2c_props.addr);
1176 return -EINVAL;
1177 }
1178
1179 tda_info("%s detected @ %d-%04x\n", name,
1180 i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr);
1181
1182 return 0;
1183 }
1184
1185 static int tda18271_setup_configuration(struct dvb_frontend *fe,
1186 struct tda18271_config *cfg)
1187 {
1188 struct tda18271_priv *priv = fe->tuner_priv;
1189
1190 priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO;
1191 priv->role = (cfg) ? cfg->role : TDA18271_MASTER;
1192 priv->config = (cfg) ? cfg->config : 0;
1193 priv->small_i2c = (cfg) ?
1194 cfg->small_i2c : TDA18271_39_BYTE_CHUNK_INIT;
1195 priv->output_opt = (cfg) ?
1196 cfg->output_opt : TDA18271_OUTPUT_LT_XT_ON;
1197
1198 return 0;
1199 }
1200
1201 static inline int tda18271_need_cal_on_startup(struct tda18271_config *cfg)
1202 {
1203 /* tda18271_cal_on_startup == -1 when cal module option is unset */
1204 return ((tda18271_cal_on_startup == -1) ?
1205 /* honor configuration setting */
1206 ((cfg) && (cfg->rf_cal_on_startup)) :
1207 /* module option overrides configuration setting */
1208 (tda18271_cal_on_startup)) ? 1 : 0;
1209 }
1210
1211 static int tda18271_set_config(struct dvb_frontend *fe, void *priv_cfg)
1212 {
1213 struct tda18271_config *cfg = (struct tda18271_config *) priv_cfg;
1214
1215 tda18271_setup_configuration(fe, cfg);
1216
1217 if (tda18271_need_cal_on_startup(cfg))
1218 tda18271_init(fe);
1219
1220 /* override default std map with values in config struct */
1221 if ((cfg) && (cfg->std_map))
1222 tda18271_update_std_map(fe, cfg->std_map);
1223
1224 return 0;
1225 }
1226
1227 static const struct dvb_tuner_ops tda18271_tuner_ops = {
1228 .info = {
1229 .name = "NXP TDA18271HD",
1230 .frequency_min_hz = 45 * MHz,
1231 .frequency_max_hz = 864 * MHz,
1232 .frequency_step_hz = 62500
1233 },
1234 .init = tda18271_init,
1235 .sleep = tda18271_sleep,
1236 .set_params = tda18271_set_params,
1237 .set_analog_params = tda18271_set_analog_params,
1238 .release = tda18271_release,
1239 .set_config = tda18271_set_config,
1240 .get_frequency = tda18271_get_frequency,
1241 .get_bandwidth = tda18271_get_bandwidth,
1242 .get_if_frequency = tda18271_get_if_frequency,
1243 };
1244
1245 struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
1246 struct i2c_adapter *i2c,
1247 struct tda18271_config *cfg)
1248 {
1249 struct tda18271_priv *priv = NULL;
1250 int instance, ret;
1251
1252 mutex_lock(&tda18271_list_mutex);
1253
1254 instance = hybrid_tuner_request_state(struct tda18271_priv, priv,
1255 hybrid_tuner_instance_list,
1256 i2c, addr, "tda18271");
1257 switch (instance) {
1258 case 0:
1259 goto fail;
1260 case 1:
1261 /* new tuner instance */
1262 fe->tuner_priv = priv;
1263
1264 tda18271_setup_configuration(fe, cfg);
1265
1266 priv->cal_initialized = false;
1267 mutex_init(&priv->lock);
1268
1269 ret = tda18271_get_id(fe);
1270 if (tda_fail(ret))
1271 goto fail;
1272
1273 ret = tda18271_assign_map_layout(fe);
1274 if (tda_fail(ret))
1275 goto fail;
1276
1277 /* if delay_cal is set, delay IR & RF calibration until init()
1278 * module option 'cal' overrides this delay */
1279 if ((cfg->delay_cal) && (!tda18271_need_cal_on_startup(cfg)))
1280 break;
1281
1282 mutex_lock(&priv->lock);
1283 tda18271_init_regs(fe);
1284
1285 if ((tda18271_need_cal_on_startup(cfg)) &&
1286 (priv->id == TDA18271HDC2))
1287 tda18271c2_rf_cal_init(fe);
1288
1289 /* enter standby mode, with required output features enabled */
1290 ret = tda18271_toggle_output(fe, 1);
1291 tda_fail(ret);
1292
1293 mutex_unlock(&priv->lock);
1294 break;
1295 default:
1296 /* existing tuner instance */
1297 fe->tuner_priv = priv;
1298
1299 /* allow dvb driver to override configuration settings */
1300 if (cfg) {
1301 if (cfg->gate != TDA18271_GATE_ANALOG)
1302 priv->gate = cfg->gate;
1303 if (cfg->role)
1304 priv->role = cfg->role;
1305 if (cfg->config)
1306 priv->config = cfg->config;
1307 if (cfg->small_i2c)
1308 priv->small_i2c = cfg->small_i2c;
1309 if (cfg->output_opt)
1310 priv->output_opt = cfg->output_opt;
1311 if (cfg->std_map)
1312 tda18271_update_std_map(fe, cfg->std_map);
1313 }
1314 if (tda18271_need_cal_on_startup(cfg))
1315 tda18271_init(fe);
1316 break;
1317 }
1318
1319 /* override default std map with values in config struct */
1320 if ((cfg) && (cfg->std_map))
1321 tda18271_update_std_map(fe, cfg->std_map);
1322
1323 mutex_unlock(&tda18271_list_mutex);
1324
1325 memcpy(&fe->ops.tuner_ops, &tda18271_tuner_ops,
1326 sizeof(struct dvb_tuner_ops));
1327
1328 if (tda18271_debug & (DBG_MAP | DBG_ADV))
1329 tda18271_dump_std_map(fe);
1330
1331 return fe;
1332 fail:
1333 mutex_unlock(&tda18271_list_mutex);
1334
1335 tda18271_release(fe);
1336 return NULL;
1337 }
1338 EXPORT_SYMBOL_GPL(tda18271_attach);
1339 MODULE_DESCRIPTION("NXP TDA18271HD analog / digital tuner driver");
1340 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
1341 MODULE_LICENSE("GPL");
1342 MODULE_VERSION("0.4");
Kernel DRM miscellaneous fixes and cross-tree changes