/* tda18271-fe.c - driver for the Philips / NXP TDA18271 silicon tuner Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/delay.h> #include <linux/videodev2.h> #include "tda18271-priv.h" #include "tda8290.h" int tda18271_debug; module_param_named(debug, tda18271_debug, int, 0644); MODULE_PARM_DESC(debug, "set debug level " "(info=1, map=2, reg=4, adv=8, cal=16 (or-able))"); static int tda18271_cal_on_startup = -1; module_param_named(cal, tda18271_cal_on_startup, int, 0644); MODULE_PARM_DESC(cal, "perform RF tracking filter calibration on startup"); static DEFINE_MUTEX(tda18271_list_mutex); static LIST_HEAD(hybrid_tuner_instance_list); /*---------------------------------------------------------------------*/ static int tda18271_toggle_output(struct dvb_frontend *fe, int standby) { struct tda18271_priv *priv = fe->tuner_priv; int ret = tda18271_set_standby_mode(fe, standby ? 1 : 0, priv->output_opt & TDA18271_OUTPUT_LT_OFF ? 1 : 0, priv->output_opt & TDA18271_OUTPUT_XT_OFF ? 1 : 0); if (tda_fail(ret)) goto fail; tda_dbg("%s mode: xtal oscillator %s, slave tuner loop thru %s\n", standby ? "standby" : "active", priv->output_opt & TDA18271_OUTPUT_XT_OFF ? "off" : "on", priv->output_opt & TDA18271_OUTPUT_LT_OFF ? "off" : "on"); fail: return ret; } /*---------------------------------------------------------------------*/ static inline int charge_pump_source(struct dvb_frontend *fe, int force) { struct tda18271_priv *priv = fe->tuner_priv; return tda18271_charge_pump_source(fe, (priv->role == TDA18271_SLAVE) ? TDA18271_CAL_PLL : TDA18271_MAIN_PLL, force); } static inline void tda18271_set_if_notch(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; switch (priv->mode) { case TDA18271_ANALOG: regs[R_MPD] &= ~0x80; /* IF notch = 0 */ break; case TDA18271_DIGITAL: regs[R_MPD] |= 0x80; /* IF notch = 1 */ break; } } static int tda18271_channel_configuration(struct dvb_frontend *fe, struct tda18271_std_map_item *map, u32 freq, u32 bw) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; int ret; u32 N; /* update TV broadcast parameters */ /* set standard */ regs[R_EP3] &= ~0x1f; /* clear std bits */ regs[R_EP3] |= (map->agc_mode << 3) | map->std; if (priv->id == TDA18271HDC2) { /* set rfagc to high speed mode */ regs[R_EP3] &= ~0x04; } /* set cal mode to normal */ regs[R_EP4] &= ~0x03; /* update IF output level */ regs[R_EP4] &= ~0x1c; /* clear if level bits */ regs[R_EP4] |= (map->if_lvl << 2); /* update FM_RFn */ regs[R_EP4] &= ~0x80; regs[R_EP4] |= map->fm_rfn << 7; /* update rf top / if top */ regs[R_EB22] = 0x00; regs[R_EB22] |= map->rfagc_top; ret = tda18271_write_regs(fe, R_EB22, 1); if (tda_fail(ret)) goto fail; /* --------------------------------------------------------------- */ /* disable Power Level Indicator */ regs[R_EP1] |= 0x40; /* make sure thermometer is off */ regs[R_TM] &= ~0x10; /* frequency dependent parameters */ tda18271_calc_ir_measure(fe, &freq); tda18271_calc_bp_filter(fe, &freq); tda18271_calc_rf_band(fe, &freq); tda18271_calc_gain_taper(fe, &freq); /* --------------------------------------------------------------- */ /* dual tuner and agc1 extra configuration */ switch (priv->role) { case TDA18271_MASTER: regs[R_EB1] |= 0x04; /* main vco */ break; case TDA18271_SLAVE: regs[R_EB1] &= ~0x04; /* cal vco */ break; } /* agc1 always active */ regs[R_EB1] &= ~0x02; /* agc1 has priority on agc2 */ regs[R_EB1] &= ~0x01; ret = tda18271_write_regs(fe, R_EB1, 1); if (tda_fail(ret)) goto fail; /* --------------------------------------------------------------- */ N = map->if_freq * 1000 + freq; switch (priv->role) { case TDA18271_MASTER: tda18271_calc_main_pll(fe, N); tda18271_set_if_notch(fe); tda18271_write_regs(fe, R_MPD, 4); break; case TDA18271_SLAVE: tda18271_calc_cal_pll(fe, N); tda18271_write_regs(fe, R_CPD, 4); regs[R_MPD] = regs[R_CPD] & 0x7f; tda18271_set_if_notch(fe); tda18271_write_regs(fe, R_MPD, 1); break; } ret = tda18271_write_regs(fe, R_TM, 7); if (tda_fail(ret)) goto fail; /* force charge pump source */ charge_pump_source(fe, 1); msleep(1); /* return pll to normal operation */ charge_pump_source(fe, 0); msleep(20); if (priv->id == TDA18271HDC2) { /* set rfagc to normal speed mode */ if (map->fm_rfn) regs[R_EP3] &= ~0x04; else regs[R_EP3] |= 0x04; ret = tda18271_write_regs(fe, R_EP3, 1); } fail: return ret; } static int tda18271_read_thermometer(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; int tm; /* switch thermometer on */ regs[R_TM] |= 0x10; tda18271_write_regs(fe, R_TM, 1); /* read thermometer info */ tda18271_read_regs(fe); if ((((regs[R_TM] & 0x0f) == 0x00) && ((regs[R_TM] & 0x20) == 0x20)) || (((regs[R_TM] & 0x0f) == 0x08) && ((regs[R_TM] & 0x20) == 0x00))) { if ((regs[R_TM] & 0x20) == 0x20) regs[R_TM] &= ~0x20; else regs[R_TM] |= 0x20; tda18271_write_regs(fe, R_TM, 1); msleep(10); /* temperature sensing */ /* read thermometer info */ tda18271_read_regs(fe); } tm = tda18271_lookup_thermometer(fe); /* switch thermometer off */ regs[R_TM] &= ~0x10; tda18271_write_regs(fe, R_TM, 1); /* set CAL mode to normal */ regs[R_EP4] &= ~0x03; tda18271_write_regs(fe, R_EP4, 1); return tm; } /* ------------------------------------------------------------------ */ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe, u32 freq) { struct tda18271_priv *priv = fe->tuner_priv; struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state; unsigned char *regs = priv->tda18271_regs; int i, ret; u8 tm_current, dc_over_dt, rf_tab; s32 rfcal_comp, approx; /* power up */ ret = tda18271_set_standby_mode(fe, 0, 0, 0); if (tda_fail(ret)) goto fail; /* read die current temperature */ tm_current = tda18271_read_thermometer(fe); /* frequency dependent parameters */ tda18271_calc_rf_cal(fe, &freq); rf_tab = regs[R_EB14]; i = tda18271_lookup_rf_band(fe, &freq, NULL); if (tda_fail(i)) return i; if ((0 == map[i].rf3) || (freq / 1000 < map[i].rf2)) { approx = map[i].rf_a1 * (s32)(freq / 1000 - map[i].rf1) + map[i].rf_b1 + rf_tab; } else { approx = map[i].rf_a2 * (s32)(freq / 1000 - map[i].rf2) + map[i].rf_b2 + rf_tab; } if (approx < 0) approx = 0; if (approx > 255) approx = 255; tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt); /* calculate temperature compensation */ rfcal_comp = dc_over_dt * (s32)(tm_current - priv->tm_rfcal) / 1000; regs[R_EB14] = (unsigned char)(approx + rfcal_comp); ret = tda18271_write_regs(fe, R_EB14, 1); fail: return ret; } static int tda18271_por(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; int ret; /* power up detector 1 */ regs[R_EB12] &= ~0x20; ret = tda18271_write_regs(fe, R_EB12, 1); if (tda_fail(ret)) goto fail; regs[R_EB18] &= ~0x80; /* turn agc1 loop on */ regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */ ret = tda18271_write_regs(fe, R_EB18, 1); if (tda_fail(ret)) goto fail; regs[R_EB21] |= 0x03; /* set agc2_gain to -6 dB */ /* POR mode */ ret = tda18271_set_standby_mode(fe, 1, 0, 0); if (tda_fail(ret)) goto fail; /* disable 1.5 MHz low pass filter */ regs[R_EB23] &= ~0x04; /* forcelp_fc2_en = 0 */ regs[R_EB23] &= ~0x02; /* XXX: lp_fc[2] = 0 */ ret = tda18271_write_regs(fe, R_EB21, 3); fail: return ret; } static int tda18271_calibrate_rf(struct dvb_frontend *fe, u32 freq) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; u32 N; /* set CAL mode to normal */ regs[R_EP4] &= ~0x03; tda18271_write_regs(fe, R_EP4, 1); /* switch off agc1 */ regs[R_EP3] |= 0x40; /* sm_lt = 1 */ regs[R_EB18] |= 0x03; /* set agc1_gain to 15 dB */ tda18271_write_regs(fe, R_EB18, 1); /* frequency dependent parameters */ tda18271_calc_bp_filter(fe, &freq); tda18271_calc_gain_taper(fe, &freq); tda18271_calc_rf_band(fe, &freq); tda18271_calc_km(fe, &freq); tda18271_write_regs(fe, R_EP1, 3); tda18271_write_regs(fe, R_EB13, 1); /* main pll charge pump source */ tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 1); /* cal pll charge pump source */ tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 1); /* force dcdc converter to 0 V */ regs[R_EB14] = 0x00; tda18271_write_regs(fe, R_EB14, 1); /* disable plls lock */ regs[R_EB20] &= ~0x20; tda18271_write_regs(fe, R_EB20, 1); /* set CAL mode to RF tracking filter calibration */ regs[R_EP4] |= 0x03; tda18271_write_regs(fe, R_EP4, 2); /* --------------------------------------------------------------- */ /* set the internal calibration signal */ N = freq; tda18271_calc_cal_pll(fe, N); tda18271_write_regs(fe, R_CPD, 4); /* downconvert internal calibration */ N += 1000000; tda18271_calc_main_pll(fe, N); tda18271_write_regs(fe, R_MPD, 4); msleep(5); tda18271_write_regs(fe, R_EP2, 1); tda18271_write_regs(fe, R_EP1, 1); tda18271_write_regs(fe, R_EP2, 1); tda18271_write_regs(fe, R_EP1, 1); /* --------------------------------------------------------------- */ /* normal operation for the main pll */ tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 0); /* normal operation for the cal pll */ tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 0); msleep(10); /* plls locking */ /* launch the rf tracking filters calibration */ regs[R_EB20] |= 0x20; tda18271_write_regs(fe, R_EB20, 1); msleep(60); /* calibration */ /* --------------------------------------------------------------- */ /* set CAL mode to normal */ regs[R_EP4] &= ~0x03; /* switch on agc1 */ regs[R_EP3] &= ~0x40; /* sm_lt = 0 */ regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */ tda18271_write_regs(fe, R_EB18, 1); tda18271_write_regs(fe, R_EP3, 2); /* synchronization */ tda18271_write_regs(fe, R_EP1, 1); /* get calibration result */ tda18271_read_extended(fe); return regs[R_EB14]; } static int tda18271_powerscan(struct dvb_frontend *fe, u32 *freq_in, u32 *freq_out) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; int sgn, bcal, count, wait, ret; u8 cid_target; u16 count_limit; u32 freq; freq = *freq_in; tda18271_calc_rf_band(fe, &freq); tda18271_calc_rf_cal(fe, &freq); tda18271_calc_gain_taper(fe, &freq); tda18271_lookup_cid_target(fe, &freq, &cid_target, &count_limit); tda18271_write_regs(fe, R_EP2, 1); tda18271_write_regs(fe, R_EB14, 1); /* downconvert frequency */ freq += 1000000; tda18271_calc_main_pll(fe, freq); tda18271_write_regs(fe, R_MPD, 4); msleep(5); /* pll locking */ /* detection mode */ regs[R_EP4] &= ~0x03; regs[R_EP4] |= 0x01; tda18271_write_regs(fe, R_EP4, 1); /* launch power detection measurement */ tda18271_write_regs(fe, R_EP2, 1); /* read power detection info, stored in EB10 */ ret = tda18271_read_extended(fe); if (tda_fail(ret)) return ret; /* algorithm initialization */ sgn = 1; *freq_out = *freq_in; bcal = 0; count = 0; wait = false; while ((regs[R_EB10] & 0x3f) < cid_target) { /* downconvert updated freq to 1 MHz */ freq = *freq_in + (sgn * count) + 1000000; tda18271_calc_main_pll(fe, freq); tda18271_write_regs(fe, R_MPD, 4); if (wait) { msleep(5); /* pll locking */ wait = false; } else udelay(100); /* pll locking */ /* launch power detection measurement */ tda18271_write_regs(fe, R_EP2, 1); /* read power detection info, stored in EB10 */ ret = tda18271_read_extended(fe); if (tda_fail(ret)) return ret; count += 200; if (count <= count_limit) continue; if (sgn <= 0) break; sgn = -1 * sgn; count = 200; wait = true; } if ((regs[R_EB10] & 0x3f) >= cid_target) { bcal = 1; *freq_out = freq - 1000000; } else bcal = 0; tda_cal("bcal = %d, freq_in = %d, freq_out = %d (freq = %d)\n", bcal, *freq_in, *freq_out, freq); return bcal; } static int tda18271_powerscan_init(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; int ret; /* set standard to digital */ regs[R_EP3] &= ~0x1f; /* clear std bits */ regs[R_EP3] |= 0x12; /* set cal mode to normal */ regs[R_EP4] &= ~0x03; /* update IF output level */ regs[R_EP4] &= ~0x1c; /* clear if level bits */ ret = tda18271_write_regs(fe, R_EP3, 2); if (tda_fail(ret)) goto fail; regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */ ret = tda18271_write_regs(fe, R_EB18, 1); if (tda_fail(ret)) goto fail; regs[R_EB21] &= ~0x03; /* set agc2_gain to -15 dB */ /* 1.5 MHz low pass filter */ regs[R_EB23] |= 0x04; /* forcelp_fc2_en = 1 */ regs[R_EB23] |= 0x02; /* lp_fc[2] = 1 */ ret = tda18271_write_regs(fe, R_EB21, 3); fail: return ret; } static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq) { struct tda18271_priv *priv = fe->tuner_priv; struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state; unsigned char *regs = priv->tda18271_regs; int bcal, rf, i; s32 divisor, dividend; #define RF1 0 #define RF2 1 #define RF3 2 u32 rf_default[3]; u32 rf_freq[3]; s32 prog_cal[3]; s32 prog_tab[3]; i = tda18271_lookup_rf_band(fe, &freq, NULL); if (tda_fail(i)) return i; rf_default[RF1] = 1000 * map[i].rf1_def; rf_default[RF2] = 1000 * map[i].rf2_def; rf_default[RF3] = 1000 * map[i].rf3_def; for (rf = RF1; rf <= RF3; rf++) { if (0 == rf_default[rf]) return 0; tda_cal("freq = %d, rf = %d\n", freq, rf); /* look for optimized calibration frequency */ bcal = tda18271_powerscan(fe, &rf_default[rf], &rf_freq[rf]); if (tda_fail(bcal)) return bcal; tda18271_calc_rf_cal(fe, &rf_freq[rf]); prog_tab[rf] = (s32)regs[R_EB14]; if (1 == bcal) prog_cal[rf] = (s32)tda18271_calibrate_rf(fe, rf_freq[rf]); else prog_cal[rf] = prog_tab[rf]; switch (rf) { case RF1: map[i].rf_a1 = 0; map[i].rf_b1 = (prog_cal[RF1] - prog_tab[RF1]); map[i].rf1 = rf_freq[RF1] / 1000; break; case RF2: dividend = (prog_cal[RF2] - prog_tab[RF2] - prog_cal[RF1] + prog_tab[RF1]); divisor = (s32)(rf_freq[RF2] - rf_freq[RF1]) / 1000; map[i].rf_a1 = (dividend / divisor); map[i].rf2 = rf_freq[RF2] / 1000; break; case RF3: dividend = (prog_cal[RF3] - prog_tab[RF3] - prog_cal[RF2] + prog_tab[RF2]); divisor = (s32)(rf_freq[RF3] - rf_freq[RF2]) / 1000; map[i].rf_a2 = (dividend / divisor); map[i].rf_b2 = (prog_cal[RF2] - prog_tab[RF2]); map[i].rf3 = rf_freq[RF3] / 1000; break; default: BUG(); } } return 0; } static int tda18271_calc_rf_filter_curve(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; unsigned int i; int ret; tda_info("tda18271: performing RF tracking filter calibration\n"); /* wait for die temperature stabilization */ msleep(200); ret = tda18271_powerscan_init(fe); if (tda_fail(ret)) goto fail; /* rf band calibration */ for (i = 0; priv->rf_cal_state[i].rfmax != 0; i++) { ret = tda18271_rf_tracking_filters_init(fe, 1000 * priv->rf_cal_state[i].rfmax); if (tda_fail(ret)) goto fail; } priv->tm_rfcal = tda18271_read_thermometer(fe); fail: return ret; } /* ------------------------------------------------------------------ */ static int tda18271c2_rf_cal_init(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; int ret; /* test RF_CAL_OK to see if we need init */ if ((regs[R_EP1] & 0x10) == 0) priv->cal_initialized = false; if (priv->cal_initialized) return 0; ret = tda18271_calc_rf_filter_curve(fe); if (tda_fail(ret)) goto fail; ret = tda18271_por(fe); if (tda_fail(ret)) goto fail; tda_info("tda18271: RF tracking filter calibration complete\n"); priv->cal_initialized = true; goto end; fail: tda_info("tda18271: RF tracking filter calibration failed!\n"); end: return ret; } static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe, u32 freq, u32 bw) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; int ret; u32 N = 0; /* calculate bp filter */ tda18271_calc_bp_filter(fe, &freq); tda18271_write_regs(fe, R_EP1, 1); regs[R_EB4] &= 0x07; regs[R_EB4] |= 0x60; tda18271_write_regs(fe, R_EB4, 1); regs[R_EB7] = 0x60; tda18271_write_regs(fe, R_EB7, 1); regs[R_EB14] = 0x00; tda18271_write_regs(fe, R_EB14, 1); regs[R_EB20] = 0xcc; tda18271_write_regs(fe, R_EB20, 1); /* set cal mode to RF tracking filter calibration */ regs[R_EP4] |= 0x03; /* calculate cal pll */ switch (priv->mode) { case TDA18271_ANALOG: N = freq - 1250000; break; case TDA18271_DIGITAL: N = freq + bw / 2; break; } tda18271_calc_cal_pll(fe, N); /* calculate main pll */ switch (priv->mode) { case TDA18271_ANALOG: N = freq - 250000; break; case TDA18271_DIGITAL: N = freq + bw / 2 + 1000000; break; } tda18271_calc_main_pll(fe, N); ret = tda18271_write_regs(fe, R_EP3, 11); if (tda_fail(ret)) return ret; msleep(5); /* RF tracking filter calibration initialization */ /* search for K,M,CO for RF calibration */ tda18271_calc_km(fe, &freq); tda18271_write_regs(fe, R_EB13, 1); /* search for rf band */ tda18271_calc_rf_band(fe, &freq); /* search for gain taper */ tda18271_calc_gain_taper(fe, &freq); tda18271_write_regs(fe, R_EP2, 1); tda18271_write_regs(fe, R_EP1, 1); tda18271_write_regs(fe, R_EP2, 1); tda18271_write_regs(fe, R_EP1, 1); regs[R_EB4] &= 0x07; regs[R_EB4] |= 0x40; tda18271_write_regs(fe, R_EB4, 1); regs[R_EB7] = 0x40; tda18271_write_regs(fe, R_EB7, 1); msleep(10); /* pll locking */ regs[R_EB20] = 0xec; tda18271_write_regs(fe, R_EB20, 1); msleep(60); /* RF tracking filter calibration completion */ regs[R_EP4] &= ~0x03; /* set cal mode to normal */ tda18271_write_regs(fe, R_EP4, 1); tda18271_write_regs(fe, R_EP1, 1); /* RF tracking filter correction for VHF_Low band */ if (0 == tda18271_calc_rf_cal(fe, &freq)) tda18271_write_regs(fe, R_EB14, 1); return 0; } /* ------------------------------------------------------------------ */ static int tda18271_ir_cal_init(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; int ret; ret = tda18271_read_regs(fe); if (tda_fail(ret)) goto fail; /* test IR_CAL_OK to see if we need init */ if ((regs[R_EP1] & 0x08) == 0) ret = tda18271_init_regs(fe); fail: return ret; } static int tda18271_init(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; int ret; mutex_lock(&priv->lock); /* full power up */ ret = tda18271_set_standby_mode(fe, 0, 0, 0); if (tda_fail(ret)) goto fail; /* initialization */ ret = tda18271_ir_cal_init(fe); if (tda_fail(ret)) goto fail; if (priv->id == TDA18271HDC2) tda18271c2_rf_cal_init(fe); fail: mutex_unlock(&priv->lock); return ret; } static int tda18271_sleep(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; int ret; mutex_lock(&priv->lock); /* enter standby mode, with required output features enabled */ ret = tda18271_toggle_output(fe, 1); mutex_unlock(&priv->lock); return ret; } /* ------------------------------------------------------------------ */ static int tda18271_agc(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; int ret = 0; switch (priv->config) { case TDA8290_LNA_OFF: /* no external agc configuration required */ if (tda18271_debug & DBG_ADV) tda_dbg("no agc configuration provided\n"); break; case TDA8290_LNA_ON_BRIDGE: /* switch with GPIO of saa713x */ tda_dbg("invoking callback\n"); if (fe->callback) ret = fe->callback(priv->i2c_props.adap->algo_data, DVB_FRONTEND_COMPONENT_TUNER, TDA18271_CALLBACK_CMD_AGC_ENABLE, priv->mode); break; case TDA8290_LNA_GP0_HIGH_ON: case TDA8290_LNA_GP0_HIGH_OFF: default: /* n/a - currently not supported */ tda_err("unsupported configuration: %d\n", priv->config); ret = -EINVAL; break; } return ret; } static int tda18271_tune(struct dvb_frontend *fe, struct tda18271_std_map_item *map, u32 freq, u32 bw) { struct tda18271_priv *priv = fe->tuner_priv; int ret; tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n", freq, map->if_freq, bw, map->agc_mode, map->std); ret = tda18271_agc(fe); if (tda_fail(ret)) tda_warn("failed to configure agc\n"); ret = tda18271_init(fe); if (tda_fail(ret)) goto fail; mutex_lock(&priv->lock); switch (priv->id) { case TDA18271HDC1: tda18271c1_rf_tracking_filter_calibration(fe, freq, bw); break; case TDA18271HDC2: tda18271c2_rf_tracking_filters_correction(fe, freq); break; } ret = tda18271_channel_configuration(fe, map, freq, bw); mutex_unlock(&priv->lock); fail: return ret; } /* ------------------------------------------------------------------ */ static int tda18271_set_params(struct dvb_frontend *fe) { struct dtv_frontend_properties *c = &fe->dtv_property_cache; u32 delsys = c->delivery_system; u32 bw = c->bandwidth_hz; u32 freq = c->frequency; struct tda18271_priv *priv = fe->tuner_priv; struct tda18271_std_map *std_map = &priv->std; struct tda18271_std_map_item *map; int ret; priv->mode = TDA18271_DIGITAL; switch (delsys) { case SYS_ATSC: map = &std_map->atsc_6; bw = 6000000; break; case SYS_ISDBT: case SYS_DVBT: case SYS_DVBT2: if (bw <= 6000000) { map = &std_map->dvbt_6; } else if (bw <= 7000000) { map = &std_map->dvbt_7; } else { map = &std_map->dvbt_8; } break; case SYS_DVBC_ANNEX_B: bw = 6000000; /* falltrough */ case SYS_DVBC_ANNEX_A: case SYS_DVBC_ANNEX_C: if (bw <= 6000000) { map = &std_map->qam_6; } else if (bw <= 7000000) { map = &std_map->qam_7; } else { map = &std_map->qam_8; } break; default: tda_warn("modulation type not supported!\n"); return -EINVAL; } /* When tuning digital, the analog demod must be tri-stated */ if (fe->ops.analog_ops.standby) fe->ops.analog_ops.standby(fe); ret = tda18271_tune(fe, map, freq, bw); if (tda_fail(ret)) goto fail; priv->if_freq = map->if_freq; priv->frequency = freq; priv->bandwidth = bw; fail: return ret; } static int tda18271_set_analog_params(struct dvb_frontend *fe, struct analog_parameters *params) { struct tda18271_priv *priv = fe->tuner_priv; struct tda18271_std_map *std_map = &priv->std; struct tda18271_std_map_item *map; char *mode; int ret; u32 freq = params->frequency * 125 * ((params->mode == V4L2_TUNER_RADIO) ? 1 : 1000) / 2; priv->mode = TDA18271_ANALOG; if (params->mode == V4L2_TUNER_RADIO) { map = &std_map->fm_radio; mode = "fm"; } else if (params->std & V4L2_STD_MN) { map = &std_map->atv_mn; mode = "MN"; } else if (params->std & V4L2_STD_B) { map = &std_map->atv_b; mode = "B"; } else if (params->std & V4L2_STD_GH) { map = &std_map->atv_gh; mode = "GH"; } else if (params->std & V4L2_STD_PAL_I) { map = &std_map->atv_i; mode = "I"; } else if (params->std & V4L2_STD_DK) { map = &std_map->atv_dk; mode = "DK"; } else if (params->std & V4L2_STD_SECAM_L) { map = &std_map->atv_l; mode = "L"; } else if (params->std & V4L2_STD_SECAM_LC) { map = &std_map->atv_lc; mode = "L'"; } else { map = &std_map->atv_i; mode = "xx"; } tda_dbg("setting tda18271 to system %s\n", mode); ret = tda18271_tune(fe, map, freq, 0); if (tda_fail(ret)) goto fail; priv->if_freq = map->if_freq; priv->frequency = freq; priv->bandwidth = 0; fail: return ret; } static int tda18271_release(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; mutex_lock(&tda18271_list_mutex); if (priv) hybrid_tuner_release_state(priv); mutex_unlock(&tda18271_list_mutex); fe->tuner_priv = NULL; return 0; } static int tda18271_get_frequency(struct dvb_frontend *fe, u32 *frequency) { struct tda18271_priv *priv = fe->tuner_priv; *frequency = priv->frequency; return 0; } static int tda18271_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) { struct tda18271_priv *priv = fe->tuner_priv; *bandwidth = priv->bandwidth; return 0; } static int tda18271_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) { struct tda18271_priv *priv = fe->tuner_priv; *frequency = (u32)priv->if_freq * 1000; return 0; } /* ------------------------------------------------------------------ */ #define tda18271_update_std(std_cfg, name) do { \ if (map->std_cfg.if_freq + \ map->std_cfg.agc_mode + map->std_cfg.std + \ map->std_cfg.if_lvl + map->std_cfg.rfagc_top > 0) { \ tda_dbg("Using custom std config for %s\n", name); \ memcpy(&std->std_cfg, &map->std_cfg, \ sizeof(struct tda18271_std_map_item)); \ } } while (0) #define tda18271_dump_std_item(std_cfg, name) do { \ tda_dbg("(%s) if_freq = %d, agc_mode = %d, std = %d, " \ "if_lvl = %d, rfagc_top = 0x%02x\n", \ name, std->std_cfg.if_freq, \ std->std_cfg.agc_mode, std->std_cfg.std, \ std->std_cfg.if_lvl, std->std_cfg.rfagc_top); \ } while (0) static int tda18271_dump_std_map(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; struct tda18271_std_map *std = &priv->std; tda_dbg("========== STANDARD MAP SETTINGS ==========\n"); tda18271_dump_std_item(fm_radio, " fm "); tda18271_dump_std_item(atv_b, "atv b "); tda18271_dump_std_item(atv_dk, "atv dk"); tda18271_dump_std_item(atv_gh, "atv gh"); tda18271_dump_std_item(atv_i, "atv i "); tda18271_dump_std_item(atv_l, "atv l "); tda18271_dump_std_item(atv_lc, "atv l'"); tda18271_dump_std_item(atv_mn, "atv mn"); tda18271_dump_std_item(atsc_6, "atsc 6"); tda18271_dump_std_item(dvbt_6, "dvbt 6"); tda18271_dump_std_item(dvbt_7, "dvbt 7"); tda18271_dump_std_item(dvbt_8, "dvbt 8"); tda18271_dump_std_item(qam_6, "qam 6 "); tda18271_dump_std_item(qam_7, "qam 7 "); tda18271_dump_std_item(qam_8, "qam 8 "); return 0; } static int tda18271_update_std_map(struct dvb_frontend *fe, struct tda18271_std_map *map) { struct tda18271_priv *priv = fe->tuner_priv; struct tda18271_std_map *std = &priv->std; if (!map) return -EINVAL; tda18271_update_std(fm_radio, "fm"); tda18271_update_std(atv_b, "atv b"); tda18271_update_std(atv_dk, "atv dk"); tda18271_update_std(atv_gh, "atv gh"); tda18271_update_std(atv_i, "atv i"); tda18271_update_std(atv_l, "atv l"); tda18271_update_std(atv_lc, "atv l'"); tda18271_update_std(atv_mn, "atv mn"); tda18271_update_std(atsc_6, "atsc 6"); tda18271_update_std(dvbt_6, "dvbt 6"); tda18271_update_std(dvbt_7, "dvbt 7"); tda18271_update_std(dvbt_8, "dvbt 8"); tda18271_update_std(qam_6, "qam 6"); tda18271_update_std(qam_7, "qam 7"); tda18271_update_std(qam_8, "qam 8"); return 0; } static int tda18271_get_id(struct dvb_frontend *fe) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; char *name; int ret; mutex_lock(&priv->lock); ret = tda18271_read_regs(fe); mutex_unlock(&priv->lock); if (ret) { tda_info("Error reading device ID @ %d-%04x, bailing out.\n", i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr); return -EIO; } switch (regs[R_ID] & 0x7f) { case 3: name = "TDA18271HD/C1"; priv->id = TDA18271HDC1; break; case 4: name = "TDA18271HD/C2"; priv->id = TDA18271HDC2; break; default: tda_info("Unknown device (%i) detected @ %d-%04x, device not supported.\n", regs[R_ID], i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr); return -EINVAL; } tda_info("%s detected @ %d-%04x\n", name, i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr); return 0; } static int tda18271_setup_configuration(struct dvb_frontend *fe, struct tda18271_config *cfg) { struct tda18271_priv *priv = fe->tuner_priv; priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO; priv->role = (cfg) ? cfg->role : TDA18271_MASTER; priv->config = (cfg) ? cfg->config : 0; priv->small_i2c = (cfg) ? cfg->small_i2c : TDA18271_39_BYTE_CHUNK_INIT; priv->output_opt = (cfg) ? cfg->output_opt : TDA18271_OUTPUT_LT_XT_ON; return 0; } static inline int tda18271_need_cal_on_startup(struct tda18271_config *cfg) { /* tda18271_cal_on_startup == -1 when cal module option is unset */ return ((tda18271_cal_on_startup == -1) ? /* honor configuration setting */ ((cfg) && (cfg->rf_cal_on_startup)) : /* module option overrides configuration setting */ (tda18271_cal_on_startup)) ? 1 : 0; } static int tda18271_set_config(struct dvb_frontend *fe, void *priv_cfg) { struct tda18271_config *cfg = (struct tda18271_config *) priv_cfg; tda18271_setup_configuration(fe, cfg); if (tda18271_need_cal_on_startup(cfg)) tda18271_init(fe); /* override default std map with values in config struct */ if ((cfg) && (cfg->std_map)) tda18271_update_std_map(fe, cfg->std_map); return 0; } static const struct dvb_tuner_ops tda18271_tuner_ops = { .info = { .name = "NXP TDA18271HD", .frequency_min = 45000000, .frequency_max = 864000000, .frequency_step = 62500 }, .init = tda18271_init, .sleep = tda18271_sleep, .set_params = tda18271_set_params, .set_analog_params = tda18271_set_analog_params, .release = tda18271_release, .set_config = tda18271_set_config, .get_frequency = tda18271_get_frequency, .get_bandwidth = tda18271_get_bandwidth, .get_if_frequency = tda18271_get_if_frequency, }; struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr, struct i2c_adapter *i2c, struct tda18271_config *cfg) { struct tda18271_priv *priv = NULL; int instance, ret; mutex_lock(&tda18271_list_mutex); instance = hybrid_tuner_request_state(struct tda18271_priv, priv, hybrid_tuner_instance_list, i2c, addr, "tda18271"); switch (instance) { case 0: goto fail; case 1: /* new tuner instance */ fe->tuner_priv = priv; tda18271_setup_configuration(fe, cfg); priv->cal_initialized = false; mutex_init(&priv->lock); ret = tda18271_get_id(fe); if (tda_fail(ret)) goto fail; ret = tda18271_assign_map_layout(fe); if (tda_fail(ret)) goto fail; /* if delay_cal is set, delay IR & RF calibration until init() * module option 'cal' overrides this delay */ if ((cfg->delay_cal) && (!tda18271_need_cal_on_startup(cfg))) break; mutex_lock(&priv->lock); tda18271_init_regs(fe); if ((tda18271_need_cal_on_startup(cfg)) && (priv->id == TDA18271HDC2)) tda18271c2_rf_cal_init(fe); /* enter standby mode, with required output features enabled */ ret = tda18271_toggle_output(fe, 1); tda_fail(ret); mutex_unlock(&priv->lock); break; default: /* existing tuner instance */ fe->tuner_priv = priv; /* allow dvb driver to override configuration settings */ if (cfg) { if (cfg->gate != TDA18271_GATE_ANALOG) priv->gate = cfg->gate; if (cfg->role) priv->role = cfg->role; if (cfg->config) priv->config = cfg->config; if (cfg->small_i2c) priv->small_i2c = cfg->small_i2c; if (cfg->output_opt) priv->output_opt = cfg->output_opt; if (cfg->std_map) tda18271_update_std_map(fe, cfg->std_map); } if (tda18271_need_cal_on_startup(cfg)) tda18271_init(fe); break; } /* override default std map with values in config struct */ if ((cfg) && (cfg->std_map)) tda18271_update_std_map(fe, cfg->std_map); mutex_unlock(&tda18271_list_mutex); memcpy(&fe->ops.tuner_ops, &tda18271_tuner_ops, sizeof(struct dvb_tuner_ops)); if (tda18271_debug & (DBG_MAP | DBG_ADV)) tda18271_dump_std_map(fe); return fe; fail: mutex_unlock(&tda18271_list_mutex); tda18271_release(fe); return NULL; } EXPORT_SYMBOL_GPL(tda18271_attach); MODULE_DESCRIPTION("NXP TDA18271HD analog / digital tuner driver"); MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); MODULE_LICENSE("GPL"); MODULE_VERSION("0.4");