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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* FireDTV driver (formerly known as FireSAT)
*
* Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
* Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
*/
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/types.h>
#include <media/dvb_frontend.h>
#include "firedtv.h"
static int fdtv_dvb_init(struct dvb_frontend *fe)
{
struct firedtv *fdtv = fe->sec_priv;
int err;
/* FIXME - allocate free channel at IRM */
fdtv->isochannel = fdtv->adapter.num;
err = cmp_establish_pp_connection(fdtv, fdtv->subunit,
fdtv->isochannel);
if (err) {
dev_err(fdtv->device,
"could not establish point to point connection\n");
return err;
}
return fdtv_start_iso(fdtv);
}
static int fdtv_sleep(struct dvb_frontend *fe)
{
struct firedtv *fdtv = fe->sec_priv;
fdtv_stop_iso(fdtv);
cmp_break_pp_connection(fdtv, fdtv->subunit, fdtv->isochannel);
fdtv->isochannel = -1;
return 0;
}
#define LNBCONTROL_DONTCARE 0xff
static int fdtv_diseqc_send_master_cmd(struct dvb_frontend *fe,
struct dvb_diseqc_master_cmd *cmd)
{
struct firedtv *fdtv = fe->sec_priv;
return avc_lnb_control(fdtv, LNBCONTROL_DONTCARE, LNBCONTROL_DONTCARE,
LNBCONTROL_DONTCARE, 1, cmd);
}
static int fdtv_diseqc_send_burst(struct dvb_frontend *fe,
enum fe_sec_mini_cmd minicmd)
{
return 0;
}
static int fdtv_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
{
struct firedtv *fdtv = fe->sec_priv;
fdtv->tone = tone;
return 0;
}
static int fdtv_set_voltage(struct dvb_frontend *fe,
enum fe_sec_voltage voltage)
{
struct firedtv *fdtv = fe->sec_priv;
fdtv->voltage = voltage;
return 0;
}
static int fdtv_read_status(struct dvb_frontend *fe, enum fe_status *status)
{
struct firedtv *fdtv = fe->sec_priv;
struct firedtv_tuner_status stat;
if (avc_tuner_status(fdtv, &stat))
return -EINVAL;
if (stat.no_rf)
*status = 0;
else
*status = FE_HAS_SIGNAL | FE_HAS_VITERBI | FE_HAS_SYNC |
FE_HAS_CARRIER | FE_HAS_LOCK;
return 0;
}
static int fdtv_read_ber(struct dvb_frontend *fe, u32 *ber)
{
struct firedtv *fdtv = fe->sec_priv;
struct firedtv_tuner_status stat;
if (avc_tuner_status(fdtv, &stat))
return -EINVAL;
*ber = stat.ber;
return 0;
}
static int fdtv_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
struct firedtv *fdtv = fe->sec_priv;
struct firedtv_tuner_status stat;
if (avc_tuner_status(fdtv, &stat))
return -EINVAL;
*strength = stat.signal_strength << 8;
return 0;
}
static int fdtv_read_snr(struct dvb_frontend *fe, u16 *snr)
{
struct firedtv *fdtv = fe->sec_priv;
struct firedtv_tuner_status stat;
if (avc_tuner_status(fdtv, &stat))
return -EINVAL;
/* C/N[dB] = -10 * log10(snr / 65535) */
*snr = stat.carrier_noise_ratio * 257;
return 0;
}
static int fdtv_read_uncorrected_blocks(struct dvb_frontend *fe, u32 *ucblocks)
{
return -EOPNOTSUPP;
}
static int fdtv_set_frontend(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct firedtv *fdtv = fe->sec_priv;
return avc_tuner_dsd(fdtv, p);
}
void fdtv_frontend_init(struct firedtv *fdtv, const char *name)
{
struct dvb_frontend_ops *ops = &fdtv->fe.ops;
struct dvb_frontend_internal_info *fi = &ops->info;
ops->init = fdtv_dvb_init;
ops->sleep = fdtv_sleep;
ops->set_frontend = fdtv_set_frontend;
ops->read_status = fdtv_read_status;
ops->read_ber = fdtv_read_ber;
ops->read_signal_strength = fdtv_read_signal_strength;
ops->read_snr = fdtv_read_snr;
ops->read_ucblocks = fdtv_read_uncorrected_blocks;
ops->diseqc_send_master_cmd = fdtv_diseqc_send_master_cmd;
ops->diseqc_send_burst = fdtv_diseqc_send_burst;
ops->set_tone = fdtv_set_tone;
ops->set_voltage = fdtv_set_voltage;
switch (fdtv->type) {
case FIREDTV_DVB_S:
ops->delsys[0] = SYS_DVBS;
fi->frequency_min_hz = 950 * MHz;
fi->frequency_max_hz = 2150 * MHz;
fi->frequency_stepsize_hz = 125 * kHz;
fi->symbol_rate_min = 1000000;
fi->symbol_rate_max = 40000000;
fi->caps = FE_CAN_INVERSION_AUTO |
FE_CAN_FEC_1_2 |
FE_CAN_FEC_2_3 |
FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 |
FE_CAN_FEC_7_8 |
FE_CAN_FEC_AUTO |
FE_CAN_QPSK;
break;
case FIREDTV_DVB_S2:
ops->delsys[0] = SYS_DVBS;
ops->delsys[1] = SYS_DVBS2;
fi->frequency_min_hz = 950 * MHz;
fi->frequency_max_hz = 2150 * MHz;
fi->frequency_stepsize_hz = 125 * kHz;
fi->symbol_rate_min = 1000000;
fi->symbol_rate_max = 40000000;
fi->caps = FE_CAN_INVERSION_AUTO |
FE_CAN_FEC_1_2 |
FE_CAN_FEC_2_3 |
FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 |
FE_CAN_FEC_7_8 |
FE_CAN_FEC_AUTO |
FE_CAN_QPSK |
FE_CAN_2G_MODULATION;
break;
case FIREDTV_DVB_C:
ops->delsys[0] = SYS_DVBC_ANNEX_A;
fi->frequency_min_hz = 47 * MHz;
fi->frequency_max_hz = 866 * MHz;
fi->frequency_stepsize_hz = 62500;
fi->symbol_rate_min = 870000;
fi->symbol_rate_max = 6900000;
fi->caps = FE_CAN_INVERSION_AUTO |
FE_CAN_QAM_16 |
FE_CAN_QAM_32 |
FE_CAN_QAM_64 |
FE_CAN_QAM_128 |
FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO;
break;
case FIREDTV_DVB_T:
ops->delsys[0] = SYS_DVBT;
fi->frequency_min_hz = 49 * MHz;
fi->frequency_max_hz = 861 * MHz;
fi->frequency_stepsize_hz = 62500;
fi->caps = FE_CAN_INVERSION_AUTO |
FE_CAN_FEC_2_3 |
FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO |
FE_CAN_HIERARCHY_AUTO;
break;
default:
dev_err(fdtv->device, "no frontend for model type %d\n",
fdtv->type);
}
strscpy(fi->name, name, sizeof(fi->name));
fdtv->fe.dvb = &fdtv->adapter;
fdtv->fe.sec_priv = fdtv;
}
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