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 <linux/delay.h>
22 #include <linux/videodev2.h>
23 #include "tda18271-priv.h"
26 module_param_named(debug, tda18271_debug, int, 0644);
27 MODULE_PARM_DESC(debug, "set debug level "
28 "(info=1, map=2, reg=4, adv=8, cal=16 (or-able))");
30 static int tda18271_cal_on_startup;
31 module_param_named(cal, tda18271_cal_on_startup, int, 0644);
32 MODULE_PARM_DESC(cal, "perform RF tracking filter calibration on startup");
34 static DEFINE_MUTEX(tda18271_list_mutex);
35 static LIST_HEAD(hybrid_tuner_instance_list);
37 /*---------------------------------------------------------------------*/
39 static int tda18271_channel_configuration(struct dvb_frontend *fe,
40 struct tda18271_std_map_item *map,
43 struct tda18271_priv *priv = fe->tuner_priv;
44 unsigned char *regs = priv->tda18271_regs;
47 /* update TV broadcast parameters */
50 regs[R_EP3] &= ~0x1f; /* clear std bits */
51 regs[R_EP3] |= (map->agc_mode << 3) | map->std;
53 /* set cal mode to normal */
56 /* update IF output level & IF notch frequency */
57 regs[R_EP4] &= ~0x1c; /* clear if level bits */
61 regs[R_MPD] &= ~0x80; /* IF notch = 0 */
63 case TDA18271_DIGITAL:
64 regs[R_EP4] |= 0x04; /* IF level = 1 */
65 regs[R_MPD] |= 0x80; /* IF notch = 1 */
71 regs[R_EP4] |= map->fm_rfn << 7;
73 /* update RF_TOP / IF_TOP */
78 case TDA18271_DIGITAL:
82 tda18271_write_regs(fe, R_EB22, 1);
84 /* --------------------------------------------------------------- */
86 /* disable Power Level Indicator */
89 /* frequency dependent parameters */
91 tda18271_calc_ir_measure(fe, &freq);
93 tda18271_calc_bp_filter(fe, &freq);
95 tda18271_calc_rf_band(fe, &freq);
97 tda18271_calc_gain_taper(fe, &freq);
99 /* --------------------------------------------------------------- */
101 /* dual tuner and agc1 extra configuration */
103 /* main vco when Master, cal vco when slave */
104 regs[R_EB1] |= 0x04; /* FIXME: assumes master */
106 /* agc1 always active */
107 regs[R_EB1] &= ~0x02;
109 /* agc1 has priority on agc2 */
110 regs[R_EB1] &= ~0x01;
112 tda18271_write_regs(fe, R_EB1, 1);
114 /* --------------------------------------------------------------- */
116 N = map->if_freq * 1000 + freq;
118 /* FIXME: assumes master */
119 tda18271_calc_main_pll(fe, N);
120 tda18271_write_regs(fe, R_MPD, 4);
122 tda18271_write_regs(fe, R_TM, 7);
124 /* main pll charge pump source */
126 tda18271_write_regs(fe, R_EB4, 1);
130 /* normal operation for the main pll */
131 regs[R_EB4] &= ~0x20;
132 tda18271_write_regs(fe, R_EB4, 1);
139 static int tda18271_read_thermometer(struct dvb_frontend *fe)
141 struct tda18271_priv *priv = fe->tuner_priv;
142 unsigned char *regs = priv->tda18271_regs;
145 /* switch thermometer on */
147 tda18271_write_regs(fe, R_TM, 1);
149 /* read thermometer info */
150 tda18271_read_regs(fe);
152 if ((((regs[R_TM] & 0x0f) == 0x00) && ((regs[R_TM] & 0x20) == 0x20)) ||
153 (((regs[R_TM] & 0x0f) == 0x08) && ((regs[R_TM] & 0x20) == 0x00))) {
155 if ((regs[R_TM] & 0x20) == 0x20)
160 tda18271_write_regs(fe, R_TM, 1);
162 msleep(10); /* temperature sensing */
164 /* read thermometer info */
165 tda18271_read_regs(fe);
168 tm = tda18271_lookup_thermometer(fe);
170 /* switch thermometer off */
172 tda18271_write_regs(fe, R_TM, 1);
174 /* set CAL mode to normal */
175 regs[R_EP4] &= ~0x03;
176 tda18271_write_regs(fe, R_EP4, 1);
181 /* ------------------------------------------------------------------ */
183 static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe,
186 struct tda18271_priv *priv = fe->tuner_priv;
187 struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;
188 unsigned char *regs = priv->tda18271_regs;
189 int tm_current, rfcal_comp, approx, i;
190 u8 dc_over_dt, rf_tab;
193 tda18271_set_standby_mode(fe, 0, 0, 0);
195 /* read die current temperature */
196 tm_current = tda18271_read_thermometer(fe);
198 /* frequency dependent parameters */
200 tda18271_calc_rf_cal(fe, &freq);
201 rf_tab = regs[R_EB14];
203 i = tda18271_lookup_rf_band(fe, &freq, NULL);
207 if ((0 == map[i].rf3) || (freq / 1000 < map[i].rf2)) {
208 approx = map[i].rf_a1 *
209 (freq / 1000 - map[i].rf1) + map[i].rf_b1 + rf_tab;
211 approx = map[i].rf_a2 *
212 (freq / 1000 - map[i].rf2) + map[i].rf_b2 + rf_tab;
220 tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt);
222 /* calculate temperature compensation */
223 rfcal_comp = dc_over_dt * (tm_current - priv->tm_rfcal);
225 regs[R_EB14] = approx + rfcal_comp;
226 tda18271_write_regs(fe, R_EB14, 1);
231 static int tda18271_por(struct dvb_frontend *fe)
233 struct tda18271_priv *priv = fe->tuner_priv;
234 unsigned char *regs = priv->tda18271_regs;
236 /* power up detector 1 */
237 regs[R_EB12] &= ~0x20;
238 tda18271_write_regs(fe, R_EB12, 1);
240 regs[R_EB18] &= ~0x80; /* turn agc1 loop on */
241 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
242 tda18271_write_regs(fe, R_EB18, 1);
244 regs[R_EB21] |= 0x03; /* set agc2_gain to -6 dB */
247 tda18271_set_standby_mode(fe, 1, 0, 0);
249 /* disable 1.5 MHz low pass filter */
250 regs[R_EB23] &= ~0x04; /* forcelp_fc2_en = 0 */
251 regs[R_EB23] &= ~0x02; /* XXX: lp_fc[2] = 0 */
252 tda18271_write_regs(fe, R_EB21, 3);
257 static int tda18271_calibrate_rf(struct dvb_frontend *fe, u32 freq)
259 struct tda18271_priv *priv = fe->tuner_priv;
260 unsigned char *regs = priv->tda18271_regs;
263 /* set CAL mode to normal */
264 regs[R_EP4] &= ~0x03;
265 tda18271_write_regs(fe, R_EP4, 1);
267 /* switch off agc1 */
268 regs[R_EP3] |= 0x40; /* sm_lt = 1 */
270 regs[R_EB18] |= 0x03; /* set agc1_gain to 15 dB */
271 tda18271_write_regs(fe, R_EB18, 1);
273 /* frequency dependent parameters */
275 tda18271_calc_bp_filter(fe, &freq);
276 tda18271_calc_gain_taper(fe, &freq);
277 tda18271_calc_rf_band(fe, &freq);
278 tda18271_calc_km(fe, &freq);
280 tda18271_write_regs(fe, R_EP1, 3);
281 tda18271_write_regs(fe, R_EB13, 1);
283 /* main pll charge pump source */
285 tda18271_write_regs(fe, R_EB4, 1);
287 /* cal pll charge pump source */
289 tda18271_write_regs(fe, R_EB7, 1);
291 /* force dcdc converter to 0 V */
293 tda18271_write_regs(fe, R_EB14, 1);
295 /* disable plls lock */
296 regs[R_EB20] &= ~0x20;
297 tda18271_write_regs(fe, R_EB20, 1);
299 /* set CAL mode to RF tracking filter calibration */
301 tda18271_write_regs(fe, R_EP4, 2);
303 /* --------------------------------------------------------------- */
305 /* set the internal calibration signal */
308 tda18271_calc_main_pll(fe, N);
309 tda18271_write_regs(fe, R_MPD, 4);
311 /* downconvert internal calibration */
314 tda18271_calc_main_pll(fe, N);
315 tda18271_write_regs(fe, R_MPD, 4);
319 tda18271_write_regs(fe, R_EP2, 1);
320 tda18271_write_regs(fe, R_EP1, 1);
321 tda18271_write_regs(fe, R_EP2, 1);
322 tda18271_write_regs(fe, R_EP1, 1);
324 /* --------------------------------------------------------------- */
326 /* normal operation for the main pll */
327 regs[R_EB4] &= ~0x20;
328 tda18271_write_regs(fe, R_EB4, 1);
330 /* normal operation for the cal pll */
331 regs[R_EB7] &= ~0x20;
332 tda18271_write_regs(fe, R_EB7, 1);
334 msleep(5); /* plls locking */
336 /* launch the rf tracking filters calibration */
337 regs[R_EB20] |= 0x20;
338 tda18271_write_regs(fe, R_EB20, 1);
340 msleep(60); /* calibration */
342 /* --------------------------------------------------------------- */
344 /* set CAL mode to normal */
345 regs[R_EP4] &= ~0x03;
348 regs[R_EP3] &= ~0x40; /* sm_lt = 0 */
350 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
351 tda18271_write_regs(fe, R_EB18, 1);
353 tda18271_write_regs(fe, R_EP3, 2);
355 /* synchronization */
356 tda18271_write_regs(fe, R_EP1, 1);
358 /* get calibration result */
359 tda18271_read_extended(fe);
364 static int tda18271_powerscan(struct dvb_frontend *fe,
365 u32 *freq_in, u32 *freq_out)
367 struct tda18271_priv *priv = fe->tuner_priv;
368 unsigned char *regs = priv->tda18271_regs;
369 int sgn, bcal, count, wait;
376 tda18271_calc_rf_band(fe, &freq);
377 tda18271_calc_rf_cal(fe, &freq);
378 tda18271_calc_gain_taper(fe, &freq);
379 tda18271_lookup_cid_target(fe, &freq, &cid_target, &count_limit);
381 tda18271_write_regs(fe, R_EP2, 1);
382 tda18271_write_regs(fe, R_EB14, 1);
384 /* downconvert frequency */
387 tda18271_calc_main_pll(fe, freq);
388 tda18271_write_regs(fe, R_MPD, 4);
390 msleep(5); /* pll locking */
393 regs[R_EP4] &= ~0x03;
395 tda18271_write_regs(fe, R_EP4, 1);
397 /* launch power detection measurement */
398 tda18271_write_regs(fe, R_EP2, 1);
400 /* read power detection info, stored in EB10 */
401 tda18271_read_extended(fe);
403 /* algorithm initialization */
405 *freq_out = *freq_in;
410 while ((regs[R_EB10] & 0x3f) < cid_target) {
411 /* downconvert updated freq to 1 MHz */
412 freq = *freq_in + (sgn * count) + 1000000;
414 tda18271_calc_main_pll(fe, freq);
415 tda18271_write_regs(fe, R_MPD, 4);
418 msleep(5); /* pll locking */
421 udelay(100); /* pll locking */
423 /* launch power detection measurement */
424 tda18271_write_regs(fe, R_EP2, 1);
426 /* read power detection info, stored in EB10 */
427 tda18271_read_extended(fe);
431 if (count < count_limit)
442 if ((regs[R_EB10] & 0x3f) >= cid_target) {
444 *freq_out = freq - 1000000;
448 tda_cal("bcal = %d, freq_in = %d, freq_out = %d (freq = %d)\n",
449 bcal, *freq_in, *freq_out, freq);
454 static int tda18271_powerscan_init(struct dvb_frontend *fe)
456 struct tda18271_priv *priv = fe->tuner_priv;
457 unsigned char *regs = priv->tda18271_regs;
459 /* set standard to digital */
460 regs[R_EP3] &= ~0x1f; /* clear std bits */
463 /* set cal mode to normal */
464 regs[R_EP4] &= ~0x03;
466 /* update IF output level & IF notch frequency */
467 regs[R_EP4] &= ~0x1c; /* clear if level bits */
469 tda18271_write_regs(fe, R_EP3, 2);
471 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */
472 tda18271_write_regs(fe, R_EB18, 1);
474 regs[R_EB21] &= ~0x03; /* set agc2_gain to -15 dB */
476 /* 1.5 MHz low pass filter */
477 regs[R_EB23] |= 0x04; /* forcelp_fc2_en = 1 */
478 regs[R_EB23] |= 0x02; /* lp_fc[2] = 1 */
480 tda18271_write_regs(fe, R_EB21, 3);
485 static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq)
487 struct tda18271_priv *priv = fe->tuner_priv;
488 struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;
489 unsigned char *regs = priv->tda18271_regs;
499 i = tda18271_lookup_rf_band(fe, &freq, NULL);
504 rf_default[RF1] = 1000 * map[i].rf1_def;
505 rf_default[RF2] = 1000 * map[i].rf2_def;
506 rf_default[RF3] = 1000 * map[i].rf3_def;
508 for (rf = RF1; rf <= RF3; rf++) {
509 if (0 == rf_default[rf])
511 tda_cal("freq = %d, rf = %d\n", freq, rf);
513 /* look for optimized calibration frequency */
514 bcal = tda18271_powerscan(fe, &rf_default[rf], &rf_freq[rf]);
516 tda18271_calc_rf_cal(fe, &rf_freq[rf]);
517 prog_tab[rf] = regs[R_EB14];
520 prog_cal[rf] = tda18271_calibrate_rf(fe, rf_freq[rf]);
522 prog_cal[rf] = prog_tab[rf];
527 map[i].rf_b1 = prog_cal[RF1] - prog_tab[RF1];
528 map[i].rf1 = rf_freq[RF1] / 1000;
531 map[i].rf_a1 = (prog_cal[RF2] - prog_tab[RF2] -
532 prog_cal[RF1] + prog_tab[RF1]) /
533 ((rf_freq[RF2] - rf_freq[RF1]) / 1000);
534 map[i].rf2 = rf_freq[RF2] / 1000;
537 map[i].rf_a2 = (prog_cal[RF3] - prog_tab[RF3] -
538 prog_cal[RF2] + prog_tab[RF2]) /
539 ((rf_freq[RF3] - rf_freq[RF2]) / 1000);
540 map[i].rf_b2 = prog_cal[RF2] - prog_tab[RF2];
541 map[i].rf3 = rf_freq[RF3] / 1000;
551 static int tda18271_calc_rf_filter_curve(struct dvb_frontend *fe)
553 struct tda18271_priv *priv = fe->tuner_priv;
556 tda_info("tda18271: performing RF tracking filter calibration\n");
558 /* wait for die temperature stabilization */
561 tda18271_powerscan_init(fe);
563 /* rf band calibration */
564 for (i = 0; priv->rf_cal_state[i].rfmax != 0; i++)
565 tda18271_rf_tracking_filters_init(fe, 1000 *
566 priv->rf_cal_state[i].rfmax);
568 priv->tm_rfcal = tda18271_read_thermometer(fe);
573 /* ------------------------------------------------------------------ */
575 static int tda18271c2_rf_cal_init(struct dvb_frontend *fe)
577 struct tda18271_priv *priv = fe->tuner_priv;
578 unsigned char *regs = priv->tda18271_regs;
580 /* test RF_CAL_OK to see if we need init */
581 if ((regs[R_EP1] & 0x10) == 0)
582 priv->cal_initialized = false;
584 if (priv->cal_initialized)
587 tda18271_calc_rf_filter_curve(fe);
591 tda_info("tda18271: RF tracking filter calibration complete\n");
593 priv->cal_initialized = true;
598 static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,
601 struct tda18271_priv *priv = fe->tuner_priv;
602 unsigned char *regs = priv->tda18271_regs;
605 /* calculate bp filter */
606 tda18271_calc_bp_filter(fe, &freq);
607 tda18271_write_regs(fe, R_EP1, 1);
611 tda18271_write_regs(fe, R_EB4, 1);
614 tda18271_write_regs(fe, R_EB7, 1);
617 tda18271_write_regs(fe, R_EB14, 1);
620 tda18271_write_regs(fe, R_EB20, 1);
622 /* set cal mode to RF tracking filter calibration */
625 /* calculate cal pll */
627 switch (priv->mode) {
628 case TDA18271_ANALOG:
631 case TDA18271_DIGITAL:
636 tda18271_calc_cal_pll(fe, N);
638 /* calculate main pll */
640 switch (priv->mode) {
641 case TDA18271_ANALOG:
644 case TDA18271_DIGITAL:
645 N = freq + bw / 2 + 1000000;
649 tda18271_calc_main_pll(fe, N);
651 tda18271_write_regs(fe, R_EP3, 11);
652 msleep(5); /* RF tracking filter calibration initialization */
654 /* search for K,M,CO for RF calibration */
655 tda18271_calc_km(fe, &freq);
656 tda18271_write_regs(fe, R_EB13, 1);
658 /* search for rf band */
659 tda18271_calc_rf_band(fe, &freq);
661 /* search for gain taper */
662 tda18271_calc_gain_taper(fe, &freq);
664 tda18271_write_regs(fe, R_EP2, 1);
665 tda18271_write_regs(fe, R_EP1, 1);
666 tda18271_write_regs(fe, R_EP2, 1);
667 tda18271_write_regs(fe, R_EP1, 1);
671 tda18271_write_regs(fe, R_EB4, 1);
674 tda18271_write_regs(fe, R_EB7, 1);
675 msleep(10); /* pll locking */
678 tda18271_write_regs(fe, R_EB20, 1);
679 msleep(60); /* RF tracking filter calibration completion */
681 regs[R_EP4] &= ~0x03; /* set cal mode to normal */
682 tda18271_write_regs(fe, R_EP4, 1);
684 tda18271_write_regs(fe, R_EP1, 1);
686 /* RF tracking filter correction for VHF_Low band */
687 if (0 == tda18271_calc_rf_cal(fe, &freq))
688 tda18271_write_regs(fe, R_EB14, 1);
693 /* ------------------------------------------------------------------ */
695 static int tda18271_ir_cal_init(struct dvb_frontend *fe)
697 struct tda18271_priv *priv = fe->tuner_priv;
698 unsigned char *regs = priv->tda18271_regs;
700 tda18271_read_regs(fe);
702 /* test IR_CAL_OK to see if we need init */
703 if ((regs[R_EP1] & 0x08) == 0)
704 tda18271_init_regs(fe);
709 static int tda18271_init(struct dvb_frontend *fe)
711 struct tda18271_priv *priv = fe->tuner_priv;
713 mutex_lock(&priv->lock);
716 tda18271_set_standby_mode(fe, 0, 0, 0);
719 tda18271_ir_cal_init(fe);
721 if (priv->id == TDA18271HDC2)
722 tda18271c2_rf_cal_init(fe);
724 mutex_unlock(&priv->lock);
729 static int tda18271_tune(struct dvb_frontend *fe,
730 struct tda18271_std_map_item *map, u32 freq, u32 bw)
732 struct tda18271_priv *priv = fe->tuner_priv;
734 tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n",
735 freq, map->if_freq, bw, map->agc_mode, map->std);
739 mutex_lock(&priv->lock);
743 tda18271c1_rf_tracking_filter_calibration(fe, freq, bw);
746 tda18271c2_rf_tracking_filters_correction(fe, freq);
749 tda18271_channel_configuration(fe, map, freq, bw);
751 mutex_unlock(&priv->lock);
756 /* ------------------------------------------------------------------ */
758 static int tda18271_set_params(struct dvb_frontend *fe,
759 struct dvb_frontend_parameters *params)
761 struct tda18271_priv *priv = fe->tuner_priv;
762 struct tda18271_std_map *std_map = &priv->std;
763 struct tda18271_std_map_item *map;
765 u32 bw, freq = params->frequency;
767 priv->mode = TDA18271_DIGITAL;
769 if (fe->ops.info.type == FE_ATSC) {
770 switch (params->u.vsb.modulation) {
773 map = &std_map->atsc_6;
777 map = &std_map->qam_6;
780 tda_warn("modulation not set!\n");
784 /* userspace request is already center adjusted */
785 freq += 1750000; /* Adjust to center (+1.75MHZ) */
788 } else if (fe->ops.info.type == FE_OFDM) {
789 switch (params->u.ofdm.bandwidth) {
790 case BANDWIDTH_6_MHZ:
792 map = &std_map->dvbt_6;
794 case BANDWIDTH_7_MHZ:
796 map = &std_map->dvbt_7;
798 case BANDWIDTH_8_MHZ:
800 map = &std_map->dvbt_8;
803 tda_warn("bandwidth not set!\n");
807 tda_warn("modulation type not supported!\n");
811 /* When tuning digital, the analog demod must be tri-stated */
812 if (fe->ops.analog_ops.standby)
813 fe->ops.analog_ops.standby(fe);
815 ret = tda18271_tune(fe, map, freq, bw);
820 priv->frequency = freq;
821 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
822 params->u.ofdm.bandwidth : 0;
827 static int tda18271_set_analog_params(struct dvb_frontend *fe,
828 struct analog_parameters *params)
830 struct tda18271_priv *priv = fe->tuner_priv;
831 struct tda18271_std_map *std_map = &priv->std;
832 struct tda18271_std_map_item *map;
835 u32 freq = params->frequency * 62500;
837 priv->mode = TDA18271_ANALOG;
839 if (params->mode == V4L2_TUNER_RADIO) {
841 map = &std_map->fm_radio;
843 } else if (params->std & V4L2_STD_MN) {
844 map = &std_map->atv_mn;
846 } else if (params->std & V4L2_STD_B) {
847 map = &std_map->atv_b;
849 } else if (params->std & V4L2_STD_GH) {
850 map = &std_map->atv_gh;
852 } else if (params->std & V4L2_STD_PAL_I) {
853 map = &std_map->atv_i;
855 } else if (params->std & V4L2_STD_DK) {
856 map = &std_map->atv_dk;
858 } else if (params->std & V4L2_STD_SECAM_L) {
859 map = &std_map->atv_l;
861 } else if (params->std & V4L2_STD_SECAM_LC) {
862 map = &std_map->atv_lc;
865 map = &std_map->atv_i;
869 tda_dbg("setting tda18271 to system %s\n", mode);
871 ret = tda18271_tune(fe, map, freq, 0);
876 priv->frequency = freq;
882 static int tda18271_sleep(struct dvb_frontend *fe)
884 struct tda18271_priv *priv = fe->tuner_priv;
886 mutex_lock(&priv->lock);
888 /* standby mode w/ slave tuner output
889 * & loop thru & xtal oscillator on */
890 tda18271_set_standby_mode(fe, 1, 0, 0);
892 mutex_unlock(&priv->lock);
897 static int tda18271_release(struct dvb_frontend *fe)
899 struct tda18271_priv *priv = fe->tuner_priv;
901 mutex_lock(&tda18271_list_mutex);
904 hybrid_tuner_release_state(priv);
906 mutex_unlock(&tda18271_list_mutex);
908 fe->tuner_priv = NULL;
913 static int tda18271_get_frequency(struct dvb_frontend *fe, u32 *frequency)
915 struct tda18271_priv *priv = fe->tuner_priv;
916 *frequency = priv->frequency;
920 static int tda18271_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
922 struct tda18271_priv *priv = fe->tuner_priv;
923 *bandwidth = priv->bandwidth;
927 /* ------------------------------------------------------------------ */
929 #define tda18271_update_std(std_cfg, name) do { \
930 if (map->std_cfg.if_freq + \
931 map->std_cfg.agc_mode + map->std_cfg.std > 0) { \
932 tda_dbg("Using custom std config for %s\n", name); \
933 memcpy(&std->std_cfg, &map->std_cfg, \
934 sizeof(struct tda18271_std_map_item)); \
937 #define tda18271_dump_std_item(std_cfg, name) do { \
938 tda_dbg("(%s) if freq = %d, agc_mode = %d, std = %d\n", \
939 name, std->std_cfg.if_freq, \
940 std->std_cfg.agc_mode, std->std_cfg.std); \
943 static int tda18271_dump_std_map(struct dvb_frontend *fe)
945 struct tda18271_priv *priv = fe->tuner_priv;
946 struct tda18271_std_map *std = &priv->std;
948 tda_dbg("========== STANDARD MAP SETTINGS ==========\n");
949 tda18271_dump_std_item(fm_radio, "fm");
950 tda18271_dump_std_item(atv_b, "pal b");
951 tda18271_dump_std_item(atv_dk, "pal dk");
952 tda18271_dump_std_item(atv_gh, "pal gh");
953 tda18271_dump_std_item(atv_i, "pal i");
954 tda18271_dump_std_item(atv_l, "pal l");
955 tda18271_dump_std_item(atv_lc, "pal l'");
956 tda18271_dump_std_item(atv_mn, "atv mn");
957 tda18271_dump_std_item(atsc_6, "atsc 6");
958 tda18271_dump_std_item(dvbt_6, "dvbt 6");
959 tda18271_dump_std_item(dvbt_7, "dvbt 7");
960 tda18271_dump_std_item(dvbt_8, "dvbt 8");
961 tda18271_dump_std_item(qam_6, "qam 6");
962 tda18271_dump_std_item(qam_8, "qam 8");
967 static int tda18271_update_std_map(struct dvb_frontend *fe,
968 struct tda18271_std_map *map)
970 struct tda18271_priv *priv = fe->tuner_priv;
971 struct tda18271_std_map *std = &priv->std;
976 tda18271_update_std(fm_radio, "fm");
977 tda18271_update_std(atv_b, "atv b");
978 tda18271_update_std(atv_dk, "atv dk");
979 tda18271_update_std(atv_gh, "atv gh");
980 tda18271_update_std(atv_i, "atv i");
981 tda18271_update_std(atv_l, "atv l");
982 tda18271_update_std(atv_lc, "atv l'");
983 tda18271_update_std(atv_mn, "atv mn");
984 tda18271_update_std(atsc_6, "atsc 6");
985 tda18271_update_std(dvbt_6, "dvbt 6");
986 tda18271_update_std(dvbt_7, "dvbt 7");
987 tda18271_update_std(dvbt_8, "dvbt 8");
988 tda18271_update_std(qam_6, "qam 6");
989 tda18271_update_std(qam_8, "qam 8");
994 static int tda18271_get_id(struct dvb_frontend *fe)
996 struct tda18271_priv *priv = fe->tuner_priv;
997 unsigned char *regs = priv->tda18271_regs;
1001 mutex_lock(&priv->lock);
1002 tda18271_read_regs(fe);
1003 mutex_unlock(&priv->lock);
1005 switch (regs[R_ID] & 0x7f) {
1007 name = "TDA18271HD/C1";
1008 priv->id = TDA18271HDC1;
1011 name = "TDA18271HD/C2";
1012 priv->id = TDA18271HDC2;
1015 name = "Unknown device";
1020 tda_info("%s detected @ %d-%04x%s\n", name,
1021 i2c_adapter_id(priv->i2c_props.adap),
1022 priv->i2c_props.addr,
1023 (0 == ret) ? "" : ", device not supported.");
1028 static struct dvb_tuner_ops tda18271_tuner_ops = {
1030 .name = "NXP TDA18271HD",
1031 .frequency_min = 45000000,
1032 .frequency_max = 864000000,
1033 .frequency_step = 62500
1035 .init = tda18271_init,
1036 .sleep = tda18271_sleep,
1037 .set_params = tda18271_set_params,
1038 .set_analog_params = tda18271_set_analog_params,
1039 .release = tda18271_release,
1040 .get_frequency = tda18271_get_frequency,
1041 .get_bandwidth = tda18271_get_bandwidth,
1044 struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
1045 struct i2c_adapter *i2c,
1046 struct tda18271_config *cfg)
1048 struct tda18271_priv *priv = NULL;
1051 mutex_lock(&tda18271_list_mutex);
1053 instance = hybrid_tuner_request_state(struct tda18271_priv, priv,
1054 hybrid_tuner_instance_list,
1055 i2c, addr, "tda18271");
1061 /* new tuner instance */
1062 priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO;
1063 priv->cal_initialized = false;
1064 mutex_init(&priv->lock);
1066 fe->tuner_priv = priv;
1069 priv->small_i2c = cfg->small_i2c;
1071 if (tda18271_get_id(fe) < 0)
1074 if (tda18271_assign_map_layout(fe) < 0)
1077 mutex_lock(&priv->lock);
1078 tda18271_init_regs(fe);
1080 if ((tda18271_cal_on_startup) && (priv->id == TDA18271HDC2))
1081 tda18271c2_rf_cal_init(fe);
1083 mutex_unlock(&priv->lock);
1086 /* existing tuner instance */
1087 fe->tuner_priv = priv;
1089 /* allow dvb driver to override i2c gate setting */
1090 if ((cfg) && (cfg->gate != TDA18271_GATE_ANALOG))
1091 priv->gate = cfg->gate;
1095 /* override default std map with values in config struct */
1096 if ((cfg) && (cfg->std_map))
1097 tda18271_update_std_map(fe, cfg->std_map);
1099 mutex_unlock(&tda18271_list_mutex);
1101 memcpy(&fe->ops.tuner_ops, &tda18271_tuner_ops,
1102 sizeof(struct dvb_tuner_ops));
1104 if (tda18271_debug & DBG_MAP)
1105 tda18271_dump_std_map(fe);
1109 mutex_unlock(&tda18271_list_mutex);
1111 tda18271_release(fe);
1114 EXPORT_SYMBOL_GPL(tda18271_attach);
1115 MODULE_DESCRIPTION("NXP TDA18271HD analog / digital tuner driver");
1116 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
1117 MODULE_LICENSE("GPL");
1118 MODULE_VERSION("0.2");
1121 * Overrides for Emacs so that we follow Linus's tabbing style.
1122 * ---------------------------------------------------------------------------