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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * FireDTV driver (formerly known as FireSAT)4 *5 * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>6 * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>7 */8 9#include <linux/device.h>10#include <linux/errno.h>11#include <linux/kernel.h>12#include <linux/string.h>13#include <linux/types.h>14 15#include <media/dvb_frontend.h>16 17#include "firedtv.h"18 19static int fdtv_dvb_init(struct dvb_frontend *fe)20{21 struct firedtv *fdtv = fe->sec_priv;22 int err;23 24 /* FIXME - allocate free channel at IRM */25 fdtv->isochannel = fdtv->adapter.num;26 27 err = cmp_establish_pp_connection(fdtv, fdtv->subunit,28 fdtv->isochannel);29 if (err) {30 dev_err(fdtv->device,31 "could not establish point to point connection\n");32 return err;33 }34 35 return fdtv_start_iso(fdtv);36}37 38static int fdtv_sleep(struct dvb_frontend *fe)39{40 struct firedtv *fdtv = fe->sec_priv;41 42 fdtv_stop_iso(fdtv);43 cmp_break_pp_connection(fdtv, fdtv->subunit, fdtv->isochannel);44 fdtv->isochannel = -1;45 return 0;46}47 48#define LNBCONTROL_DONTCARE 0xff49 50static int fdtv_diseqc_send_master_cmd(struct dvb_frontend *fe,51 struct dvb_diseqc_master_cmd *cmd)52{53 struct firedtv *fdtv = fe->sec_priv;54 55 return avc_lnb_control(fdtv, LNBCONTROL_DONTCARE, LNBCONTROL_DONTCARE,56 LNBCONTROL_DONTCARE, 1, cmd);57}58 59static int fdtv_diseqc_send_burst(struct dvb_frontend *fe,60 enum fe_sec_mini_cmd minicmd)61{62 return 0;63}64 65static int fdtv_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)66{67 struct firedtv *fdtv = fe->sec_priv;68 69 fdtv->tone = tone;70 return 0;71}72 73static int fdtv_set_voltage(struct dvb_frontend *fe,74 enum fe_sec_voltage voltage)75{76 struct firedtv *fdtv = fe->sec_priv;77 78 fdtv->voltage = voltage;79 return 0;80}81 82static int fdtv_read_status(struct dvb_frontend *fe, enum fe_status *status)83{84 struct firedtv *fdtv = fe->sec_priv;85 struct firedtv_tuner_status stat;86 87 if (avc_tuner_status(fdtv, &stat))88 return -EINVAL;89 90 if (stat.no_rf)91 *status = 0;92 else93 *status = FE_HAS_SIGNAL | FE_HAS_VITERBI | FE_HAS_SYNC |94 FE_HAS_CARRIER | FE_HAS_LOCK;95 return 0;96}97 98static int fdtv_read_ber(struct dvb_frontend *fe, u32 *ber)99{100 struct firedtv *fdtv = fe->sec_priv;101 struct firedtv_tuner_status stat;102 103 if (avc_tuner_status(fdtv, &stat))104 return -EINVAL;105 106 *ber = stat.ber;107 return 0;108}109 110static int fdtv_read_signal_strength(struct dvb_frontend *fe, u16 *strength)111{112 struct firedtv *fdtv = fe->sec_priv;113 struct firedtv_tuner_status stat;114 115 if (avc_tuner_status(fdtv, &stat))116 return -EINVAL;117 118 *strength = stat.signal_strength << 8;119 return 0;120}121 122static int fdtv_read_snr(struct dvb_frontend *fe, u16 *snr)123{124 struct firedtv *fdtv = fe->sec_priv;125 struct firedtv_tuner_status stat;126 127 if (avc_tuner_status(fdtv, &stat))128 return -EINVAL;129 130 /* C/N[dB] = -10 * log10(snr / 65535) */131 *snr = stat.carrier_noise_ratio * 257;132 return 0;133}134 135static int fdtv_read_uncorrected_blocks(struct dvb_frontend *fe, u32 *ucblocks)136{137 return -EOPNOTSUPP;138}139 140static int fdtv_set_frontend(struct dvb_frontend *fe)141{142 struct dtv_frontend_properties *p = &fe->dtv_property_cache;143 struct firedtv *fdtv = fe->sec_priv;144 145 return avc_tuner_dsd(fdtv, p);146}147 148void fdtv_frontend_init(struct firedtv *fdtv, const char *name)149{150 struct dvb_frontend_ops *ops = &fdtv->fe.ops;151 struct dvb_frontend_internal_info *fi = &ops->info;152 153 ops->init = fdtv_dvb_init;154 ops->sleep = fdtv_sleep;155 156 ops->set_frontend = fdtv_set_frontend;157 158 ops->read_status = fdtv_read_status;159 ops->read_ber = fdtv_read_ber;160 ops->read_signal_strength = fdtv_read_signal_strength;161 ops->read_snr = fdtv_read_snr;162 ops->read_ucblocks = fdtv_read_uncorrected_blocks;163 164 ops->diseqc_send_master_cmd = fdtv_diseqc_send_master_cmd;165 ops->diseqc_send_burst = fdtv_diseqc_send_burst;166 ops->set_tone = fdtv_set_tone;167 ops->set_voltage = fdtv_set_voltage;168 169 switch (fdtv->type) {170 case FIREDTV_DVB_S:171 ops->delsys[0] = SYS_DVBS;172 173 fi->frequency_min_hz = 950 * MHz;174 fi->frequency_max_hz = 2150 * MHz;175 fi->frequency_stepsize_hz = 125 * kHz;176 fi->symbol_rate_min = 1000000;177 fi->symbol_rate_max = 40000000;178 179 fi->caps = FE_CAN_INVERSION_AUTO |180 FE_CAN_FEC_1_2 |181 FE_CAN_FEC_2_3 |182 FE_CAN_FEC_3_4 |183 FE_CAN_FEC_5_6 |184 FE_CAN_FEC_7_8 |185 FE_CAN_FEC_AUTO |186 FE_CAN_QPSK;187 break;188 189 case FIREDTV_DVB_S2:190 ops->delsys[0] = SYS_DVBS;191 ops->delsys[1] = SYS_DVBS2;192 193 fi->frequency_min_hz = 950 * MHz;194 fi->frequency_max_hz = 2150 * MHz;195 fi->frequency_stepsize_hz = 125 * kHz;196 fi->symbol_rate_min = 1000000;197 fi->symbol_rate_max = 40000000;198 199 fi->caps = FE_CAN_INVERSION_AUTO |200 FE_CAN_FEC_1_2 |201 FE_CAN_FEC_2_3 |202 FE_CAN_FEC_3_4 |203 FE_CAN_FEC_5_6 |204 FE_CAN_FEC_7_8 |205 FE_CAN_FEC_AUTO |206 FE_CAN_QPSK |207 FE_CAN_2G_MODULATION;208 break;209 210 case FIREDTV_DVB_C:211 ops->delsys[0] = SYS_DVBC_ANNEX_A;212 213 fi->frequency_min_hz = 47 * MHz;214 fi->frequency_max_hz = 866 * MHz;215 fi->frequency_stepsize_hz = 62500;216 fi->symbol_rate_min = 870000;217 fi->symbol_rate_max = 6900000;218 219 fi->caps = FE_CAN_INVERSION_AUTO |220 FE_CAN_QAM_16 |221 FE_CAN_QAM_32 |222 FE_CAN_QAM_64 |223 FE_CAN_QAM_128 |224 FE_CAN_QAM_256 |225 FE_CAN_QAM_AUTO;226 break;227 228 case FIREDTV_DVB_T:229 ops->delsys[0] = SYS_DVBT;230 231 fi->frequency_min_hz = 49 * MHz;232 fi->frequency_max_hz = 861 * MHz;233 fi->frequency_stepsize_hz = 62500;234 235 fi->caps = FE_CAN_INVERSION_AUTO |236 FE_CAN_FEC_2_3 |237 FE_CAN_TRANSMISSION_MODE_AUTO |238 FE_CAN_GUARD_INTERVAL_AUTO |239 FE_CAN_HIERARCHY_AUTO;240 break;241 242 default:243 dev_err(fdtv->device, "no frontend for model type %d\n",244 fdtv->type);245 }246 strscpy(fi->name, name, sizeof(fi->name));247 248 fdtv->fe.dvb = &fdtv->adapter;249 fdtv->fe.sec_priv = fdtv;250}251