diff options
Diffstat (limited to 'drivers/media/common/tuners/tda18271-fe.c')
| -rw-r--r-- | drivers/media/common/tuners/tda18271-fe.c | 1345 |
1 files changed, 0 insertions, 1345 deletions
diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c deleted file mode 100644 index 2e67f4459904..000000000000 --- a/drivers/media/common/tuners/tda18271-fe.c +++ /dev/null @@ -1,1345 +0,0 @@ -/* - 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" - -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 0: - /* no external agc configuration required */ - if (tda18271_debug & DBG_ADV) - tda_dbg("no agc configuration provided\n"); - break; - case 3: - /* 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 1: - case 2: - 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_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_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; - - mutex_lock(&priv->lock); - tda18271_read_regs(fe); - mutex_unlock(&priv->lock); - - 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; - - mutex_lock(&priv->lock); - tda18271_init_regs(fe); - - if ((tda18271_need_cal_on_startup(cfg)) && - (priv->id == TDA18271HDC2)) - tda18271c2_rf_cal_init(fe); - - 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"); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ |