mirror of https://gitee.com/openkylin/linux.git
242 lines
5.5 KiB
C
242 lines
5.5 KiB
C
/*
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* FireDTV driver (formerly known as FireSAT)
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*
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* Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
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* Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#include <linux/device.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/types.h>
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#include <dvb_frontend.h>
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#include "firedtv.h"
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static int fdtv_dvb_init(struct dvb_frontend *fe)
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{
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struct firedtv *fdtv = fe->sec_priv;
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int err;
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/* FIXME - allocate free channel at IRM */
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fdtv->isochannel = fdtv->adapter.num;
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err = cmp_establish_pp_connection(fdtv, fdtv->subunit,
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fdtv->isochannel);
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if (err) {
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dev_err(fdtv->device,
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"could not establish point to point connection\n");
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return err;
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}
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return fdtv->backend->start_iso(fdtv);
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}
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static int fdtv_sleep(struct dvb_frontend *fe)
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{
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struct firedtv *fdtv = fe->sec_priv;
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fdtv->backend->stop_iso(fdtv);
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cmp_break_pp_connection(fdtv, fdtv->subunit, fdtv->isochannel);
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fdtv->isochannel = -1;
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return 0;
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}
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#define LNBCONTROL_DONTCARE 0xff
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static int fdtv_diseqc_send_master_cmd(struct dvb_frontend *fe,
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struct dvb_diseqc_master_cmd *cmd)
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{
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struct firedtv *fdtv = fe->sec_priv;
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return avc_lnb_control(fdtv, LNBCONTROL_DONTCARE, LNBCONTROL_DONTCARE,
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LNBCONTROL_DONTCARE, 1, cmd);
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}
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static int fdtv_diseqc_send_burst(struct dvb_frontend *fe,
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fe_sec_mini_cmd_t minicmd)
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{
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return 0;
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}
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static int fdtv_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
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{
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struct firedtv *fdtv = fe->sec_priv;
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fdtv->tone = tone;
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return 0;
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}
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static int fdtv_set_voltage(struct dvb_frontend *fe,
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fe_sec_voltage_t voltage)
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{
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struct firedtv *fdtv = fe->sec_priv;
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fdtv->voltage = voltage;
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return 0;
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}
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static int fdtv_read_status(struct dvb_frontend *fe, fe_status_t *status)
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{
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struct firedtv *fdtv = fe->sec_priv;
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struct firedtv_tuner_status stat;
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if (avc_tuner_status(fdtv, &stat))
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return -EINVAL;
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if (stat.no_rf)
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*status = 0;
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else
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*status = FE_HAS_SIGNAL | FE_HAS_VITERBI | FE_HAS_SYNC |
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FE_HAS_CARRIER | FE_HAS_LOCK;
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return 0;
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}
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static int fdtv_read_ber(struct dvb_frontend *fe, u32 *ber)
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{
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struct firedtv *fdtv = fe->sec_priv;
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struct firedtv_tuner_status stat;
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if (avc_tuner_status(fdtv, &stat))
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return -EINVAL;
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*ber = stat.ber;
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return 0;
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}
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static int fdtv_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
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{
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struct firedtv *fdtv = fe->sec_priv;
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struct firedtv_tuner_status stat;
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if (avc_tuner_status(fdtv, &stat))
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return -EINVAL;
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*strength = stat.signal_strength << 8;
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return 0;
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}
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static int fdtv_read_snr(struct dvb_frontend *fe, u16 *snr)
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{
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struct firedtv *fdtv = fe->sec_priv;
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struct firedtv_tuner_status stat;
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if (avc_tuner_status(fdtv, &stat))
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return -EINVAL;
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/* C/N[dB] = -10 * log10(snr / 65535) */
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*snr = stat.carrier_noise_ratio * 257;
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return 0;
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}
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static int fdtv_read_uncorrected_blocks(struct dvb_frontend *fe, u32 *ucblocks)
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{
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return -EOPNOTSUPP;
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}
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static int fdtv_set_frontend(struct dvb_frontend *fe,
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struct dvb_frontend_parameters *params)
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{
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struct firedtv *fdtv = fe->sec_priv;
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return avc_tuner_dsd(fdtv, params);
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}
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static int fdtv_get_frontend(struct dvb_frontend *fe,
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struct dvb_frontend_parameters *params)
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{
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return -EOPNOTSUPP;
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}
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void fdtv_frontend_init(struct firedtv *fdtv)
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{
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struct dvb_frontend_ops *ops = &fdtv->fe.ops;
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struct dvb_frontend_info *fi = &ops->info;
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ops->init = fdtv_dvb_init;
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ops->sleep = fdtv_sleep;
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ops->set_frontend = fdtv_set_frontend;
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ops->get_frontend = fdtv_get_frontend;
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ops->read_status = fdtv_read_status;
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ops->read_ber = fdtv_read_ber;
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ops->read_signal_strength = fdtv_read_signal_strength;
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ops->read_snr = fdtv_read_snr;
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ops->read_ucblocks = fdtv_read_uncorrected_blocks;
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ops->diseqc_send_master_cmd = fdtv_diseqc_send_master_cmd;
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ops->diseqc_send_burst = fdtv_diseqc_send_burst;
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ops->set_tone = fdtv_set_tone;
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ops->set_voltage = fdtv_set_voltage;
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switch (fdtv->type) {
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case FIREDTV_DVB_S:
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case FIREDTV_DVB_S2:
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fi->type = FE_QPSK;
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fi->frequency_min = 950000;
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fi->frequency_max = 2150000;
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fi->frequency_stepsize = 125;
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fi->symbol_rate_min = 1000000;
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fi->symbol_rate_max = 40000000;
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fi->caps = FE_CAN_INVERSION_AUTO |
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FE_CAN_FEC_1_2 |
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FE_CAN_FEC_2_3 |
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FE_CAN_FEC_3_4 |
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FE_CAN_FEC_5_6 |
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FE_CAN_FEC_7_8 |
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FE_CAN_FEC_AUTO |
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FE_CAN_QPSK;
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break;
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case FIREDTV_DVB_C:
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fi->type = FE_QAM;
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fi->frequency_min = 47000000;
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fi->frequency_max = 866000000;
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fi->frequency_stepsize = 62500;
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fi->symbol_rate_min = 870000;
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fi->symbol_rate_max = 6900000;
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fi->caps = FE_CAN_INVERSION_AUTO |
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FE_CAN_QAM_16 |
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FE_CAN_QAM_32 |
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FE_CAN_QAM_64 |
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FE_CAN_QAM_128 |
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FE_CAN_QAM_256 |
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FE_CAN_QAM_AUTO;
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break;
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case FIREDTV_DVB_T:
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fi->type = FE_OFDM;
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fi->frequency_min = 49000000;
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fi->frequency_max = 861000000;
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fi->frequency_stepsize = 62500;
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fi->caps = FE_CAN_INVERSION_AUTO |
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FE_CAN_FEC_2_3 |
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FE_CAN_TRANSMISSION_MODE_AUTO |
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FE_CAN_GUARD_INTERVAL_AUTO |
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FE_CAN_HIERARCHY_AUTO;
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break;
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default:
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dev_err(fdtv->device, "no frontend for model type %d\n",
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fdtv->type);
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}
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strcpy(fi->name, fdtv_model_names[fdtv->type]);
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fdtv->fe.dvb = &fdtv->adapter;
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fdtv->fe.sec_priv = fdtv;
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}
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