2 tda18271-fe.c - driver for the Philips / NXP TDA18271 silicon tuner
4 Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org>
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.
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.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "tda18271-priv.h"
24 #include <linux/delay.h>
25 #include <linux/videodev2.h>
28 module_param_named(debug, tda18271_debug, int, 0644);
29 MODULE_PARM_DESC(debug, "set debug level "
30 "(info=1, map=2, reg=4, adv=8, cal=16 (or-able))");
32 static int tda18271_cal_on_startup = -1;
33 module_param_named(cal, tda18271_cal_on_startup, int, 0644);
34 MODULE_PARM_DESC(cal, "perform RF tracking filter calibration on startup");
36 static DEFINE_MUTEX(tda18271_list_mutex);
37 static LIST_HEAD(hybrid_tuner_instance_list);
39 /*---------------------------------------------------------------------*/
41 static int tda18271_toggle_output(struct dvb_frontend *fe, int standby)
43 struct tda18271_priv *priv = fe->tuner_priv;
45 int ret = tda18271_set_standby_mode(fe, standby ? 1 : 0,
46 priv->output_opt & TDA18271_OUTPUT_LT_OFF ? 1 : 0,
47 priv->output_opt & TDA18271_OUTPUT_XT_OFF ? 1 : 0);
52 tda_dbg("%s mode: xtal oscillator %s, slave tuner loop thru %s\n",
53 standby ? "standby" : "active",
54 priv->output_opt & TDA18271_OUTPUT_XT_OFF ? "off" : "on",
55 priv->output_opt & TDA18271_OUTPUT_LT_OFF ? "off" : "on");
60 /*---------------------------------------------------------------------*/
62 static inline int charge_pump_source(struct dvb_frontend *fe, int force)
64 struct tda18271_priv *priv = fe->tuner_priv;
65 return tda18271_charge_pump_source(fe,
66 (priv->role == TDA18271_SLAVE) ?
68 TDA18271_MAIN_PLL, force);
71 static inline void tda18271_set_if_notch(struct dvb_frontend *fe)
73 struct tda18271_priv *priv = fe->tuner_priv;
74 unsigned char *regs = priv->tda18271_regs;
78 regs[R_MPD] &= ~0x80; /* IF notch = 0 */
80 case TDA18271_DIGITAL:
81 regs[R_MPD] |= 0x80; /* IF notch = 1 */
86 static int tda18271_channel_configuration(struct dvb_frontend *fe,
87 struct tda18271_std_map_item *map,
90 struct tda18271_priv *priv = fe->tuner_priv;
91 unsigned char *regs = priv->tda18271_regs;
95 /* update TV broadcast parameters */
98 regs[R_EP3] &= ~0x1f; /* clear std bits */
99 regs[R_EP3] |= (map->agc_mode << 3) | map->std;
101 if (priv->id == TDA18271HDC2) {
102 /* set rfagc to high speed mode */
103 regs[R_EP3] &= ~0x04;
106 /* set cal mode to normal */
107 regs[R_EP4] &= ~0x03;
109 /* update IF output level */
110 regs[R_EP4] &= ~0x1c; /* clear if level bits */
111 regs[R_EP4] |= (map->if_lvl << 2);
114 regs[R_EP4] &= ~0x80;
115 regs[R_EP4] |= map->fm_rfn << 7;
117 /* update rf top / if top */
119 regs[R_EB22] |= map->rfagc_top;
120 ret = tda18271_write_regs(fe, R_EB22, 1);
124 /* --------------------------------------------------------------- */
126 /* disable Power Level Indicator */
129 /* make sure thermometer is off */
132 /* frequency dependent parameters */
134 tda18271_calc_ir_measure(fe, &freq);
136 tda18271_calc_bp_filter(fe, &freq);
138 tda18271_calc_rf_band(fe, &freq);
140 tda18271_calc_gain_taper(fe, &freq);
142 /* --------------------------------------------------------------- */
144 /* dual tuner and agc1 extra configuration */
146 switch (priv->role) {
147 case TDA18271_MASTER:
148 regs[R_EB1] |= 0x04; /* main vco */
151 regs[R_EB1] &= ~0x04; /* cal vco */
155 /* agc1 always active */
156 regs[R_EB1] &= ~0x02;
158 /* agc1 has priority on agc2 */
159 regs[R_EB1] &= ~0x01;
161 ret = tda18271_write_regs(fe, R_EB1, 1);
165 /* --------------------------------------------------------------- */
167 N = map->if_freq * 1000 + freq;
169 switch (priv->role) {
170 case TDA18271_MASTER:
171 tda18271_calc_main_pll(fe, N);
172 tda18271_set_if_notch(fe);
173 tda18271_write_regs(fe, R_MPD, 4);
176 tda18271_calc_cal_pll(fe, N);
177 tda18271_write_regs(fe, R_CPD, 4);
179 regs[R_MPD] = regs[R_CPD] & 0x7f;
180 tda18271_set_if_notch(fe);
181 tda18271_write_regs(fe, R_MPD, 1);
185 ret = tda18271_write_regs(fe, R_TM, 7);
189 /* force charge pump source */
190 charge_pump_source(fe, 1);
194 /* return pll to normal operation */
195 charge_pump_source(fe, 0);
199 if (priv->id == TDA18271HDC2) {
200 /* set rfagc to normal speed mode */
202 regs[R_EP3] &= ~0x04;
205 ret = tda18271_write_regs(fe, R_EP3, 1);
211 static int tda18271_read_thermometer(struct dvb_frontend *fe)
213 struct tda18271_priv *priv = fe->tuner_priv;
214 unsigned char *regs = priv->tda18271_regs;
217 /* switch thermometer on */
219 tda18271_write_regs(fe, R_TM, 1);
221 /* read thermometer info */
222 tda18271_read_regs(fe);
224 if ((((regs[R_TM] & 0x0f) == 0x00) && ((regs[R_TM] & 0x20) == 0x20)) ||
225 (((regs[R_TM] & 0x0f) == 0x08) && ((regs[R_TM] & 0x20) == 0x00))) {
227 if ((regs[R_TM] & 0x20) == 0x20)
232 tda18271_write_regs(fe, R_TM, 1);
234 msleep(10); /* temperature sensing */
236 /* read thermometer info */
237 tda18271_read_regs(fe);
240 tm = tda18271_lookup_thermometer(fe);
242 /* switch thermometer off */
244 tda18271_write_regs(fe, R_TM, 1);
246 /* set CAL mode to normal */
247 regs[R_EP4] &= ~0x03;
248 tda18271_write_regs(fe, R_EP4, 1);
253 /* ------------------------------------------------------------------ */
255 static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe,
258 struct tda18271_priv *priv = fe->tuner_priv;
259 struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;
260 unsigned char *regs = priv->tda18271_regs;
262 u8 tm_current, dc_over_dt, rf_tab;
263 s32 rfcal_comp, approx;
266 ret = tda18271_set_standby_mode(fe, 0, 0, 0);
270 /* read die current temperature */
271 tm_current = tda18271_read_thermometer(fe);
273 /* frequency dependent parameters */
275 tda18271_calc_rf_cal(fe, &freq);
276 rf_tab = regs[R_EB14];
278 i = tda18271_lookup_rf_band(fe, &freq, NULL);
282 if ((0 == map[i].rf3) || (freq / 1000 < map[i].rf2)) {
283 approx = map[i].rf_a1 * (s32)(freq / 1000 - map[i].rf1) +
284 map[i].rf_b1 + rf_tab;
286 approx = map[i].rf_a2 * (s32)(freq / 1000 - map[i].rf2) +
287 map[i].rf_b2 + rf_tab;
295 tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt);
297 /* calculate temperature compensation */
298 rfcal_comp = dc_over_dt * (s32)(tm_current - priv->tm_rfcal) / 1000;
300 regs[R_EB14] = (unsigned char)(approx + rfcal_comp);
301 ret = tda18271_write_regs(fe, R_EB14, 1);
306 static int tda18271_por(struct dvb_frontend *fe)
308 struct tda18271_priv *priv = fe->tuner_priv;
309 unsigned char *regs = priv->tda18271_regs;
312 /* power up detector 1 */
313 regs[R_EB12] &= ~0x20;
314 ret = tda18271_write_regs(fe, R_EB12, 1);
318 regs[R_EB18] &= ~0x80; /* turn agc1 loop on */
319 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
320 ret = tda18271_write_regs(fe, R_EB18, 1);
324 regs[R_EB21] |= 0x03; /* set agc2_gain to -6 dB */
327 ret = tda18271_set_standby_mode(fe, 1, 0, 0);
331 /* disable 1.5 MHz low pass filter */
332 regs[R_EB23] &= ~0x04; /* forcelp_fc2_en = 0 */
333 regs[R_EB23] &= ~0x02; /* XXX: lp_fc[2] = 0 */
334 ret = tda18271_write_regs(fe, R_EB21, 3);
339 static int tda18271_calibrate_rf(struct dvb_frontend *fe, u32 freq)
341 struct tda18271_priv *priv = fe->tuner_priv;
342 unsigned char *regs = priv->tda18271_regs;
345 /* set CAL mode to normal */
346 regs[R_EP4] &= ~0x03;
347 tda18271_write_regs(fe, R_EP4, 1);
349 /* switch off agc1 */
350 regs[R_EP3] |= 0x40; /* sm_lt = 1 */
352 regs[R_EB18] |= 0x03; /* set agc1_gain to 15 dB */
353 tda18271_write_regs(fe, R_EB18, 1);
355 /* frequency dependent parameters */
357 tda18271_calc_bp_filter(fe, &freq);
358 tda18271_calc_gain_taper(fe, &freq);
359 tda18271_calc_rf_band(fe, &freq);
360 tda18271_calc_km(fe, &freq);
362 tda18271_write_regs(fe, R_EP1, 3);
363 tda18271_write_regs(fe, R_EB13, 1);
365 /* main pll charge pump source */
366 tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 1);
368 /* cal pll charge pump source */
369 tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 1);
371 /* force dcdc converter to 0 V */
373 tda18271_write_regs(fe, R_EB14, 1);
375 /* disable plls lock */
376 regs[R_EB20] &= ~0x20;
377 tda18271_write_regs(fe, R_EB20, 1);
379 /* set CAL mode to RF tracking filter calibration */
381 tda18271_write_regs(fe, R_EP4, 2);
383 /* --------------------------------------------------------------- */
385 /* set the internal calibration signal */
388 tda18271_calc_cal_pll(fe, N);
389 tda18271_write_regs(fe, R_CPD, 4);
391 /* downconvert internal calibration */
394 tda18271_calc_main_pll(fe, N);
395 tda18271_write_regs(fe, R_MPD, 4);
399 tda18271_write_regs(fe, R_EP2, 1);
400 tda18271_write_regs(fe, R_EP1, 1);
401 tda18271_write_regs(fe, R_EP2, 1);
402 tda18271_write_regs(fe, R_EP1, 1);
404 /* --------------------------------------------------------------- */
406 /* normal operation for the main pll */
407 tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 0);
409 /* normal operation for the cal pll */
410 tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 0);
412 msleep(10); /* plls locking */
414 /* launch the rf tracking filters calibration */
415 regs[R_EB20] |= 0x20;
416 tda18271_write_regs(fe, R_EB20, 1);
418 msleep(60); /* calibration */
420 /* --------------------------------------------------------------- */
422 /* set CAL mode to normal */
423 regs[R_EP4] &= ~0x03;
426 regs[R_EP3] &= ~0x40; /* sm_lt = 0 */
428 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
429 tda18271_write_regs(fe, R_EB18, 1);
431 tda18271_write_regs(fe, R_EP3, 2);
433 /* synchronization */
434 tda18271_write_regs(fe, R_EP1, 1);
436 /* get calibration result */
437 tda18271_read_extended(fe);
442 static int tda18271_powerscan(struct dvb_frontend *fe,
443 u32 *freq_in, u32 *freq_out)
445 struct tda18271_priv *priv = fe->tuner_priv;
446 unsigned char *regs = priv->tda18271_regs;
447 int sgn, bcal, count, wait, ret;
454 tda18271_calc_rf_band(fe, &freq);
455 tda18271_calc_rf_cal(fe, &freq);
456 tda18271_calc_gain_taper(fe, &freq);
457 tda18271_lookup_cid_target(fe, &freq, &cid_target, &count_limit);
459 tda18271_write_regs(fe, R_EP2, 1);
460 tda18271_write_regs(fe, R_EB14, 1);
462 /* downconvert frequency */
465 tda18271_calc_main_pll(fe, freq);
466 tda18271_write_regs(fe, R_MPD, 4);
468 msleep(5); /* pll locking */
471 regs[R_EP4] &= ~0x03;
473 tda18271_write_regs(fe, R_EP4, 1);
475 /* launch power detection measurement */
476 tda18271_write_regs(fe, R_EP2, 1);
478 /* read power detection info, stored in EB10 */
479 ret = tda18271_read_extended(fe);
483 /* algorithm initialization */
485 *freq_out = *freq_in;
490 while ((regs[R_EB10] & 0x3f) < cid_target) {
491 /* downconvert updated freq to 1 MHz */
492 freq = *freq_in + (sgn * count) + 1000000;
494 tda18271_calc_main_pll(fe, freq);
495 tda18271_write_regs(fe, R_MPD, 4);
498 msleep(5); /* pll locking */
501 udelay(100); /* pll locking */
503 /* launch power detection measurement */
504 tda18271_write_regs(fe, R_EP2, 1);
506 /* read power detection info, stored in EB10 */
507 ret = tda18271_read_extended(fe);
513 if (count <= count_limit)
524 if ((regs[R_EB10] & 0x3f) >= cid_target) {
526 *freq_out = freq - 1000000;
530 tda_cal("bcal = %d, freq_in = %d, freq_out = %d (freq = %d)\n",
531 bcal, *freq_in, *freq_out, freq);
536 static int tda18271_powerscan_init(struct dvb_frontend *fe)
538 struct tda18271_priv *priv = fe->tuner_priv;
539 unsigned char *regs = priv->tda18271_regs;
542 /* set standard to digital */
543 regs[R_EP3] &= ~0x1f; /* clear std bits */
546 /* set cal mode to normal */
547 regs[R_EP4] &= ~0x03;
549 /* update IF output level */
550 regs[R_EP4] &= ~0x1c; /* clear if level bits */
552 ret = tda18271_write_regs(fe, R_EP3, 2);
556 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
557 ret = tda18271_write_regs(fe, R_EB18, 1);
561 regs[R_EB21] &= ~0x03; /* set agc2_gain to -15 dB */
563 /* 1.5 MHz low pass filter */
564 regs[R_EB23] |= 0x04; /* forcelp_fc2_en = 1 */
565 regs[R_EB23] |= 0x02; /* lp_fc[2] = 1 */
567 ret = tda18271_write_regs(fe, R_EB21, 3);
572 static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq)
574 struct tda18271_priv *priv = fe->tuner_priv;
575 struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;
576 unsigned char *regs = priv->tda18271_regs;
578 s32 divisor, dividend;
587 i = tda18271_lookup_rf_band(fe, &freq, NULL);
592 rf_default[RF1] = 1000 * map[i].rf1_def;
593 rf_default[RF2] = 1000 * map[i].rf2_def;
594 rf_default[RF3] = 1000 * map[i].rf3_def;
596 for (rf = RF1; rf <= RF3; rf++) {
597 if (0 == rf_default[rf])
599 tda_cal("freq = %d, rf = %d\n", freq, rf);
601 /* look for optimized calibration frequency */
602 bcal = tda18271_powerscan(fe, &rf_default[rf], &rf_freq[rf]);
606 tda18271_calc_rf_cal(fe, &rf_freq[rf]);
607 prog_tab[rf] = (s32)regs[R_EB14];
611 (s32)tda18271_calibrate_rf(fe, rf_freq[rf]);
613 prog_cal[rf] = prog_tab[rf];
618 map[i].rf_b1 = (prog_cal[RF1] - prog_tab[RF1]);
619 map[i].rf1 = rf_freq[RF1] / 1000;
622 dividend = (prog_cal[RF2] - prog_tab[RF2] -
623 prog_cal[RF1] + prog_tab[RF1]);
624 divisor = (s32)(rf_freq[RF2] - rf_freq[RF1]) / 1000;
625 map[i].rf_a1 = (dividend / divisor);
626 map[i].rf2 = rf_freq[RF2] / 1000;
629 dividend = (prog_cal[RF3] - prog_tab[RF3] -
630 prog_cal[RF2] + prog_tab[RF2]);
631 divisor = (s32)(rf_freq[RF3] - rf_freq[RF2]) / 1000;
632 map[i].rf_a2 = (dividend / divisor);
633 map[i].rf_b2 = (prog_cal[RF2] - prog_tab[RF2]);
634 map[i].rf3 = rf_freq[RF3] / 1000;
644 static int tda18271_calc_rf_filter_curve(struct dvb_frontend *fe)
646 struct tda18271_priv *priv = fe->tuner_priv;
650 tda_info("performing RF tracking filter calibration\n");
652 /* wait for die temperature stabilization */
655 ret = tda18271_powerscan_init(fe);
659 /* rf band calibration */
660 for (i = 0; priv->rf_cal_state[i].rfmax != 0; i++) {
662 tda18271_rf_tracking_filters_init(fe, 1000 *
663 priv->rf_cal_state[i].rfmax);
668 priv->tm_rfcal = tda18271_read_thermometer(fe);
673 /* ------------------------------------------------------------------ */
675 static int tda18271c2_rf_cal_init(struct dvb_frontend *fe)
677 struct tda18271_priv *priv = fe->tuner_priv;
678 unsigned char *regs = priv->tda18271_regs;
681 /* test RF_CAL_OK to see if we need init */
682 if ((regs[R_EP1] & 0x10) == 0)
683 priv->cal_initialized = false;
685 if (priv->cal_initialized)
688 ret = tda18271_calc_rf_filter_curve(fe);
692 ret = tda18271_por(fe);
696 tda_info("RF tracking filter calibration complete\n");
698 priv->cal_initialized = true;
701 tda_info("RF tracking filter calibration failed!\n");
706 static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
709 struct tda18271_priv *priv = fe->tuner_priv;
710 unsigned char *regs = priv->tda18271_regs;
714 /* calculate bp filter */
715 tda18271_calc_bp_filter(fe, &freq);
716 tda18271_write_regs(fe, R_EP1, 1);
720 tda18271_write_regs(fe, R_EB4, 1);
723 tda18271_write_regs(fe, R_EB7, 1);
726 tda18271_write_regs(fe, R_EB14, 1);
729 tda18271_write_regs(fe, R_EB20, 1);
731 /* set cal mode to RF tracking filter calibration */
734 /* calculate cal pll */
736 switch (priv->mode) {
737 case TDA18271_ANALOG:
740 case TDA18271_DIGITAL:
745 tda18271_calc_cal_pll(fe, N);
747 /* calculate main pll */
749 switch (priv->mode) {
750 case TDA18271_ANALOG:
753 case TDA18271_DIGITAL:
754 N = freq + bw / 2 + 1000000;
758 tda18271_calc_main_pll(fe, N);
760 ret = tda18271_write_regs(fe, R_EP3, 11);
764 msleep(5); /* RF tracking filter calibration initialization */
766 /* search for K,M,CO for RF calibration */
767 tda18271_calc_km(fe, &freq);
768 tda18271_write_regs(fe, R_EB13, 1);
770 /* search for rf band */
771 tda18271_calc_rf_band(fe, &freq);
773 /* search for gain taper */
774 tda18271_calc_gain_taper(fe, &freq);
776 tda18271_write_regs(fe, R_EP2, 1);
777 tda18271_write_regs(fe, R_EP1, 1);
778 tda18271_write_regs(fe, R_EP2, 1);
779 tda18271_write_regs(fe, R_EP1, 1);
783 tda18271_write_regs(fe, R_EB4, 1);
786 tda18271_write_regs(fe, R_EB7, 1);
787 msleep(10); /* pll locking */
790 tda18271_write_regs(fe, R_EB20, 1);
791 msleep(60); /* RF tracking filter calibration completion */
793 regs[R_EP4] &= ~0x03; /* set cal mode to normal */
794 tda18271_write_regs(fe, R_EP4, 1);
796 tda18271_write_regs(fe, R_EP1, 1);
798 /* RF tracking filter correction for VHF_Low band */
799 if (0 == tda18271_calc_rf_cal(fe, &freq))
800 tda18271_write_regs(fe, R_EB14, 1);
805 /* ------------------------------------------------------------------ */
807 static int tda18271_ir_cal_init(struct dvb_frontend *fe)
809 struct tda18271_priv *priv = fe->tuner_priv;
810 unsigned char *regs = priv->tda18271_regs;
813 ret = tda18271_read_regs(fe);
817 /* test IR_CAL_OK to see if we need init */
818 if ((regs[R_EP1] & 0x08) == 0)
819 ret = tda18271_init_regs(fe);
824 static int tda18271_init(struct dvb_frontend *fe)
826 struct tda18271_priv *priv = fe->tuner_priv;
829 mutex_lock(&priv->lock);
832 ret = tda18271_set_standby_mode(fe, 0, 0, 0);
837 ret = tda18271_ir_cal_init(fe);
841 if (priv->id == TDA18271HDC2)
842 tda18271c2_rf_cal_init(fe);
844 mutex_unlock(&priv->lock);
849 static int tda18271_sleep(struct dvb_frontend *fe)
851 struct tda18271_priv *priv = fe->tuner_priv;
854 mutex_lock(&priv->lock);
856 /* enter standby mode, with required output features enabled */
857 ret = tda18271_toggle_output(fe, 1);
859 mutex_unlock(&priv->lock);
864 /* ------------------------------------------------------------------ */
866 static int tda18271_agc(struct dvb_frontend *fe)
868 struct tda18271_priv *priv = fe->tuner_priv;
871 switch (priv->config) {
872 case TDA8290_LNA_OFF:
873 /* no external agc configuration required */
874 if (tda18271_debug & DBG_ADV)
875 tda_dbg("no agc configuration provided\n");
877 case TDA8290_LNA_ON_BRIDGE:
878 /* switch with GPIO of saa713x */
879 tda_dbg("invoking callback\n");
881 ret = fe->callback(priv->i2c_props.adap->algo_data,
882 DVB_FRONTEND_COMPONENT_TUNER,
883 TDA18271_CALLBACK_CMD_AGC_ENABLE,
886 case TDA8290_LNA_GP0_HIGH_ON:
887 case TDA8290_LNA_GP0_HIGH_OFF:
889 /* n/a - currently not supported */
890 tda_err("unsupported configuration: %d\n", priv->config);
897 static int tda18271_tune(struct dvb_frontend *fe,
898 struct tda18271_std_map_item *map, u32 freq, u32 bw)
900 struct tda18271_priv *priv = fe->tuner_priv;
903 tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n",
904 freq, map->if_freq, bw, map->agc_mode, map->std);
906 ret = tda18271_agc(fe);
908 tda_warn("failed to configure agc\n");
910 ret = tda18271_init(fe);
914 mutex_lock(&priv->lock);
918 tda18271c1_rf_tracking_filter_calibration(fe, freq, bw);
921 tda18271c2_rf_tracking_filters_correction(fe, freq);
924 ret = tda18271_channel_configuration(fe, map, freq, bw);
926 mutex_unlock(&priv->lock);
931 /* ------------------------------------------------------------------ */
933 static int tda18271_set_params(struct dvb_frontend *fe)
935 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
936 u32 delsys = c->delivery_system;
937 u32 bw = c->bandwidth_hz;
938 u32 freq = c->frequency;
939 struct tda18271_priv *priv = fe->tuner_priv;
940 struct tda18271_std_map *std_map = &priv->std;
941 struct tda18271_std_map_item *map;
944 priv->mode = TDA18271_DIGITAL;
948 map = &std_map->atsc_6;
955 map = &std_map->dvbt_6;
956 } else if (bw <= 7000000) {
957 map = &std_map->dvbt_7;
959 map = &std_map->dvbt_8;
962 case SYS_DVBC_ANNEX_B:
965 case SYS_DVBC_ANNEX_A:
966 case SYS_DVBC_ANNEX_C:
968 map = &std_map->qam_6;
969 } else if (bw <= 7000000) {
970 map = &std_map->qam_7;
972 map = &std_map->qam_8;
976 tda_warn("modulation type not supported!\n");
980 /* When tuning digital, the analog demod must be tri-stated */
981 if (fe->ops.analog_ops.standby)
982 fe->ops.analog_ops.standby(fe);
984 ret = tda18271_tune(fe, map, freq, bw);
989 priv->if_freq = map->if_freq;
990 priv->frequency = freq;
991 priv->bandwidth = bw;
996 static int tda18271_set_analog_params(struct dvb_frontend *fe,
997 struct analog_parameters *params)
999 struct tda18271_priv *priv = fe->tuner_priv;
1000 struct tda18271_std_map *std_map = &priv->std;
1001 struct tda18271_std_map_item *map;
1004 u32 freq = params->frequency * 125 *
1005 ((params->mode == V4L2_TUNER_RADIO) ? 1 : 1000) / 2;
1007 priv->mode = TDA18271_ANALOG;
1009 if (params->mode == V4L2_TUNER_RADIO) {
1010 map = &std_map->fm_radio;
1012 } else if (params->std & V4L2_STD_MN) {
1013 map = &std_map->atv_mn;
1015 } else if (params->std & V4L2_STD_B) {
1016 map = &std_map->atv_b;
1018 } else if (params->std & V4L2_STD_GH) {
1019 map = &std_map->atv_gh;
1021 } else if (params->std & V4L2_STD_PAL_I) {
1022 map = &std_map->atv_i;
1024 } else if (params->std & V4L2_STD_DK) {
1025 map = &std_map->atv_dk;
1027 } else if (params->std & V4L2_STD_SECAM_L) {
1028 map = &std_map->atv_l;
1030 } else if (params->std & V4L2_STD_SECAM_LC) {
1031 map = &std_map->atv_lc;
1034 map = &std_map->atv_i;
1038 tda_dbg("setting tda18271 to system %s\n", mode);
1040 ret = tda18271_tune(fe, map, freq, 0);
1045 priv->if_freq = map->if_freq;
1046 priv->frequency = freq;
1047 priv->bandwidth = 0;
1052 static int tda18271_release(struct dvb_frontend *fe)
1054 struct tda18271_priv *priv = fe->tuner_priv;
1056 mutex_lock(&tda18271_list_mutex);
1059 hybrid_tuner_release_state(priv);
1061 mutex_unlock(&tda18271_list_mutex);
1063 fe->tuner_priv = NULL;
1068 static int tda18271_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1070 struct tda18271_priv *priv = fe->tuner_priv;
1071 *frequency = priv->frequency;
1075 static int tda18271_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1077 struct tda18271_priv *priv = fe->tuner_priv;
1078 *bandwidth = priv->bandwidth;
1082 static int tda18271_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
1084 struct tda18271_priv *priv = fe->tuner_priv;
1085 *frequency = (u32)priv->if_freq * 1000;
1089 /* ------------------------------------------------------------------ */
1091 #define tda18271_update_std(std_cfg, name) do { \
1092 if (map->std_cfg.if_freq + \
1093 map->std_cfg.agc_mode + map->std_cfg.std + \
1094 map->std_cfg.if_lvl + map->std_cfg.rfagc_top > 0) { \
1095 tda_dbg("Using custom std config for %s\n", name); \
1096 memcpy(&std->std_cfg, &map->std_cfg, \
1097 sizeof(struct tda18271_std_map_item)); \
1100 #define tda18271_dump_std_item(std_cfg, name) do { \
1101 tda_dbg("(%s) if_freq = %d, agc_mode = %d, std = %d, " \
1102 "if_lvl = %d, rfagc_top = 0x%02x\n", \
1103 name, std->std_cfg.if_freq, \
1104 std->std_cfg.agc_mode, std->std_cfg.std, \
1105 std->std_cfg.if_lvl, std->std_cfg.rfagc_top); \
1108 static int tda18271_dump_std_map(struct dvb_frontend *fe)
1110 struct tda18271_priv *priv = fe->tuner_priv;
1111 struct tda18271_std_map *std = &priv->std;
1113 tda_dbg("========== STANDARD MAP SETTINGS ==========\n");
1114 tda18271_dump_std_item(fm_radio, " fm ");
1115 tda18271_dump_std_item(atv_b, "atv b ");
1116 tda18271_dump_std_item(atv_dk, "atv dk");
1117 tda18271_dump_std_item(atv_gh, "atv gh");
1118 tda18271_dump_std_item(atv_i, "atv i ");
1119 tda18271_dump_std_item(atv_l, "atv l ");
1120 tda18271_dump_std_item(atv_lc, "atv l'");
1121 tda18271_dump_std_item(atv_mn, "atv mn");
1122 tda18271_dump_std_item(atsc_6, "atsc 6");
1123 tda18271_dump_std_item(dvbt_6, "dvbt 6");
1124 tda18271_dump_std_item(dvbt_7, "dvbt 7");
1125 tda18271_dump_std_item(dvbt_8, "dvbt 8");
1126 tda18271_dump_std_item(qam_6, "qam 6 ");
1127 tda18271_dump_std_item(qam_7, "qam 7 ");
1128 tda18271_dump_std_item(qam_8, "qam 8 ");
1133 static int tda18271_update_std_map(struct dvb_frontend *fe,
1134 struct tda18271_std_map *map)
1136 struct tda18271_priv *priv = fe->tuner_priv;
1137 struct tda18271_std_map *std = &priv->std;
1142 tda18271_update_std(fm_radio, "fm");
1143 tda18271_update_std(atv_b, "atv b");
1144 tda18271_update_std(atv_dk, "atv dk");
1145 tda18271_update_std(atv_gh, "atv gh");
1146 tda18271_update_std(atv_i, "atv i");
1147 tda18271_update_std(atv_l, "atv l");
1148 tda18271_update_std(atv_lc, "atv l'");
1149 tda18271_update_std(atv_mn, "atv mn");
1150 tda18271_update_std(atsc_6, "atsc 6");
1151 tda18271_update_std(dvbt_6, "dvbt 6");
1152 tda18271_update_std(dvbt_7, "dvbt 7");
1153 tda18271_update_std(dvbt_8, "dvbt 8");
1154 tda18271_update_std(qam_6, "qam 6");
1155 tda18271_update_std(qam_7, "qam 7");
1156 tda18271_update_std(qam_8, "qam 8");
1161 static int tda18271_get_id(struct dvb_frontend *fe)
1163 struct tda18271_priv *priv = fe->tuner_priv;
1164 unsigned char *regs = priv->tda18271_regs;
1168 mutex_lock(&priv->lock);
1169 ret = tda18271_read_regs(fe);
1170 mutex_unlock(&priv->lock);
1173 tda_info("Error reading device ID @ %d-%04x, bailing out.\n",
1174 i2c_adapter_id(priv->i2c_props.adap),
1175 priv->i2c_props.addr);
1179 switch (regs[R_ID] & 0x7f) {
1181 name = "TDA18271HD/C1";
1182 priv->id = TDA18271HDC1;
1185 name = "TDA18271HD/C2";
1186 priv->id = TDA18271HDC2;
1189 tda_info("Unknown device (%i) detected @ %d-%04x, device not supported.\n",
1190 regs[R_ID], i2c_adapter_id(priv->i2c_props.adap),
1191 priv->i2c_props.addr);
1195 tda_info("%s detected @ %d-%04x\n", name,
1196 i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr);
1201 static int tda18271_setup_configuration(struct dvb_frontend *fe,
1202 struct tda18271_config *cfg)
1204 struct tda18271_priv *priv = fe->tuner_priv;
1206 priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO;
1207 priv->role = (cfg) ? cfg->role : TDA18271_MASTER;
1208 priv->config = (cfg) ? cfg->config : 0;
1209 priv->small_i2c = (cfg) ?
1210 cfg->small_i2c : TDA18271_39_BYTE_CHUNK_INIT;
1211 priv->output_opt = (cfg) ?
1212 cfg->output_opt : TDA18271_OUTPUT_LT_XT_ON;
1217 static inline int tda18271_need_cal_on_startup(struct tda18271_config *cfg)
1219 /* tda18271_cal_on_startup == -1 when cal module option is unset */
1220 return ((tda18271_cal_on_startup == -1) ?
1221 /* honor configuration setting */
1222 ((cfg) && (cfg->rf_cal_on_startup)) :
1223 /* module option overrides configuration setting */
1224 (tda18271_cal_on_startup)) ? 1 : 0;
1227 static int tda18271_set_config(struct dvb_frontend *fe, void *priv_cfg)
1229 struct tda18271_config *cfg = (struct tda18271_config *) priv_cfg;
1231 tda18271_setup_configuration(fe, cfg);
1233 if (tda18271_need_cal_on_startup(cfg))
1236 /* override default std map with values in config struct */
1237 if ((cfg) && (cfg->std_map))
1238 tda18271_update_std_map(fe, cfg->std_map);
1243 static const struct dvb_tuner_ops tda18271_tuner_ops = {
1245 .name = "NXP TDA18271HD",
1246 .frequency_min = 45000000,
1247 .frequency_max = 864000000,
1248 .frequency_step = 62500
1250 .init = tda18271_init,
1251 .sleep = tda18271_sleep,
1252 .set_params = tda18271_set_params,
1253 .set_analog_params = tda18271_set_analog_params,
1254 .release = tda18271_release,
1255 .set_config = tda18271_set_config,
1256 .get_frequency = tda18271_get_frequency,
1257 .get_bandwidth = tda18271_get_bandwidth,
1258 .get_if_frequency = tda18271_get_if_frequency,
1261 struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
1262 struct i2c_adapter *i2c,
1263 struct tda18271_config *cfg)
1265 struct tda18271_priv *priv = NULL;
1268 mutex_lock(&tda18271_list_mutex);
1270 instance = hybrid_tuner_request_state(struct tda18271_priv, priv,
1271 hybrid_tuner_instance_list,
1272 i2c, addr, "tda18271");
1277 /* new tuner instance */
1278 fe->tuner_priv = priv;
1280 tda18271_setup_configuration(fe, cfg);
1282 priv->cal_initialized = false;
1283 mutex_init(&priv->lock);
1285 ret = tda18271_get_id(fe);
1289 ret = tda18271_assign_map_layout(fe);
1293 /* if delay_cal is set, delay IR & RF calibration until init()
1294 * module option 'cal' overrides this delay */
1295 if ((cfg->delay_cal) && (!tda18271_need_cal_on_startup(cfg)))
1298 mutex_lock(&priv->lock);
1299 tda18271_init_regs(fe);
1301 if ((tda18271_need_cal_on_startup(cfg)) &&
1302 (priv->id == TDA18271HDC2))
1303 tda18271c2_rf_cal_init(fe);
1305 /* enter standby mode, with required output features enabled */
1306 ret = tda18271_toggle_output(fe, 1);
1309 mutex_unlock(&priv->lock);
1312 /* existing tuner instance */
1313 fe->tuner_priv = priv;
1315 /* allow dvb driver to override configuration settings */
1317 if (cfg->gate != TDA18271_GATE_ANALOG)
1318 priv->gate = cfg->gate;
1320 priv->role = cfg->role;
1322 priv->config = cfg->config;
1324 priv->small_i2c = cfg->small_i2c;
1325 if (cfg->output_opt)
1326 priv->output_opt = cfg->output_opt;
1328 tda18271_update_std_map(fe, cfg->std_map);
1330 if (tda18271_need_cal_on_startup(cfg))
1335 /* override default std map with values in config struct */
1336 if ((cfg) && (cfg->std_map))
1337 tda18271_update_std_map(fe, cfg->std_map);
1339 mutex_unlock(&tda18271_list_mutex);
1341 memcpy(&fe->ops.tuner_ops, &tda18271_tuner_ops,
1342 sizeof(struct dvb_tuner_ops));
1344 if (tda18271_debug & (DBG_MAP | DBG_ADV))
1345 tda18271_dump_std_map(fe);
1349 mutex_unlock(&tda18271_list_mutex);
1351 tda18271_release(fe);
1354 EXPORT_SYMBOL_GPL(tda18271_attach);
1355 MODULE_DESCRIPTION("NXP TDA18271HD analog / digital tuner driver");
1356 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
1357 MODULE_LICENSE("GPL");
1358 MODULE_VERSION("0.4");