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dddvb/ddbridge/ddbridge-m4.c

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// SPDX-License-Identifier: GPL-2.0
/*
* ddbridge-m4.c: Digital Devices MAX M4 driver
*
* Copyright (C) 2018 Digital Devices GmbH
* Marcus Metzler <mocm@metzlerbros.de>
* Ralph Metzler <rjkm@metzlerbros.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 only, as published by the Free Software Foundation.
*
*
* 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, point your browser to
* http://www.gnu.org/copyleft/gpl.html
*/
#include "ddbridge.h"
#include "ddbridge-io.h"
#include "ddbridge-mci.h"
struct m4_base {
struct mci_base mci_base;
};
struct m4 {
struct mci mci;
int started;
int t2_signalling_valid;
int iq_constellation_point;
int iq_constellation_point_max;
int iq_constellation_tap;
int first_time_lock;
};
static int stop(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct mci_command cmd;
if (!state->started)
return -1;
state->started = 0;
state->t2_signalling_valid = 0;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_STOP;
cmd.demod = state->mci.demod;
ddb_mci_cmd(&state->mci, &cmd, NULL);
return 0;
}
static int search_s2(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct mci_command cmd;
int stat;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_SEARCH_DVBS;
cmd.dvbs2_search.flags = 3;
cmd.dvbs2_search.s2_modulation_mask = 3;
cmd.dvbs2_search.retry = 0;
cmd.dvbs2_search.frequency = p->frequency * 1000;
cmd.dvbs2_search.symbol_rate = p->symbol_rate;
cmd.dvbs2_search.scrambling_sequence_index =
p->scrambling_sequence_index;
if (p->stream_id != NO_STREAM_ID_FILTER)
cmd.dvbs2_search.input_stream_id = p->stream_id;
cmd.tuner = state->mci.tuner;
cmd.demod = state->mci.demod;
cmd.output = state->mci.nr;
stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
if (stat)
stop(fe);
return stat;
}
static int search_c(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct mci_command cmd;
int stat;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_SEARCH_DVBC;
if (p->bandwidth_hz <= 6000000)
cmd.dvbc_search.bandwidth = MCI_BANDWIDTH_6MHZ;
else if (p->bandwidth_hz <= 7000000)
cmd.dvbc_search.bandwidth = MCI_BANDWIDTH_7MHZ;
else
cmd.dvbc_search.bandwidth = MCI_BANDWIDTH_8MHZ;
cmd.dvbc_search.retry = 0;
cmd.dvbc_search.frequency = p->frequency;
cmd.tuner = state->mci.tuner;
cmd.demod = state->mci.demod;
cmd.output = state->mci.nr;
stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
if (stat)
stop(fe);
return stat;
}
static int search_t(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct mci_command cmd;
int stat;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_SEARCH_DVBT;
switch (p->bandwidth_hz) {
case 5000000:
cmd.dvbt_search.bandwidth = MCI_BANDWIDTH_5MHZ;
break;
case 6000000:
cmd.dvbt_search.bandwidth = MCI_BANDWIDTH_6MHZ;
break;
case 7000000:
cmd.dvbt_search.bandwidth = MCI_BANDWIDTH_7MHZ;
break;
default:
cmd.dvbt_search.bandwidth = MCI_BANDWIDTH_8MHZ;
break;
}
cmd.dvbt_search.retry = 0;
cmd.dvbt_search.frequency = p->frequency;
cmd.tuner = state->mci.tuner;
cmd.demod = state->mci.demod;
cmd.output = state->mci.nr;
stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
if (stat)
stop(fe);
return stat;
}
static int search_isdbs(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct mci_command cmd;
int stat;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_SEARCH_ISDBS;
cmd.isdbs_search.retry = 0;
if (p->stream_id != NO_STREAM_ID_FILTER) {
cmd.isdbs_search.flags = (p->stream_id & 0xffff0000) ? 0 : 1;
cmd.isdbs_search.tsid = p->stream_id;
}
cmd.isdbs_search.frequency = p->frequency * 1000;
cmd.tuner = state->mci.nr;
cmd.demod = state->mci.tuner;
cmd.output = state->mci.nr;
stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
if (stat)
stop(fe);
return stat;
}
static int search_isdbc(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct mci_command cmd;
int stat;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_SEARCH_ISDBC;
cmd.isdbc_search.retry = 0;
if (p->stream_id != NO_STREAM_ID_FILTER) {
cmd.isdbc_search.flags = (p->stream_id & 0xffff0000) ? 0 : 1;
cmd.isdbc_search.tsid = p->stream_id;
cmd.isdbc_search.onid = (p->stream_id & 0x10000) >> 16;
}
cmd.isdbc_search.bandwidth = MCI_BANDWIDTH_6MHZ;
cmd.isdbc_search.frequency = p->frequency;
cmd.demod = state->mci.tuner;
cmd.output = state->mci.nr;
stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
if (stat)
stop(fe);
return stat;
}
static int search_j83b(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct mci_command cmd;
int stat;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_SEARCH_J83B;
cmd.j83b_search.flags = 0;
cmd.j83b_search.retry = 0;
cmd.j83b_search.bandwidth = MCI_BANDWIDTH_6MHZ;
if (p->symbol_rate > 5500000)
cmd.j83b_search.bandwidth |= MCI_BANDWIDTH_EXTENSION;
cmd.j83b_search.frequency = p->frequency;
cmd.demod = state->mci.tuner;
cmd.output = state->mci.nr;
stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
if (stat)
stop(fe);
return stat;
}
static int search_t2(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct mci_command cmd;
int stat;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_SEARCH_DVBT2;
switch (p->bandwidth_hz) {
case 1700000:
cmd.dvbt_search.bandwidth = MCI_BANDWIDTH_1_7MHZ;
break;
case 5000000:
cmd.dvbt_search.bandwidth = MCI_BANDWIDTH_5MHZ;
break;
case 6000000:
cmd.dvbt_search.bandwidth = MCI_BANDWIDTH_6MHZ;
break;
case 7000000:
cmd.dvbt_search.bandwidth = MCI_BANDWIDTH_7MHZ;
break;
default:
cmd.dvbt_search.bandwidth = MCI_BANDWIDTH_8MHZ;
break;
}
cmd.dvbt2_search.retry = 0;
cmd.dvbt2_search.frequency = p->frequency;
if (p->stream_id != NO_STREAM_ID_FILTER) {
cmd.dvbt2_search.plp = p->stream_id & 0xff;
cmd.dvbt2_search.flags |= 0x80;
cmd.dvbt2_search.flags |= (p->stream_id >> 8) & 1;
}
cmd.tuner = state->mci.tuner;
cmd.demod = state->mci.demod;
cmd.output = state->mci.nr;
stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
if (stat)
stop(fe);
return stat;
}
static int search_c2(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct mci_command cmd;
int stat;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_SEARCH_DVBC2;
switch (p->bandwidth_hz) {
case 6000000:
cmd.dvbc2_search.bandwidth = MCI_BANDWIDTH_6MHZ;
break;
default:
cmd.dvbc2_search.bandwidth = MCI_BANDWIDTH_8MHZ;
break;
}
cmd.dvbc2_search.retry = 0;
cmd.dvbc2_search.frequency = p->frequency;
if (p->stream_id != NO_STREAM_ID_FILTER) {
cmd.dvbc2_search.plp = p->stream_id & 0xff;
cmd.dvbc2_search.data_slice = (p->stream_id >> 8) & 0xff;
}
cmd.tuner = state->mci.tuner;
cmd.demod = state->mci.demod;
cmd.output = state->mci.nr;
stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
if (stat)
stop(fe);
return stat;
}
static int search_isdbt(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct mci_command cmd;
int stat;
memset(&cmd, 0, sizeof(cmd));
cmd.command = MCI_CMD_SEARCH_ISDBT;
switch (p->bandwidth_hz) {
case 8000000:
cmd.isdbt_search.bandwidth = MCI_BANDWIDTH_8MHZ;
break;
case 7000000:
cmd.isdbt_search.bandwidth = MCI_BANDWIDTH_7MHZ;
break;
default:
cmd.isdbt_search.bandwidth = MCI_BANDWIDTH_6MHZ;
break;
}
cmd.isdbt_search.retry = 0;
cmd.isdbt_search.frequency = p->frequency;
cmd.tuner = state->mci.tuner;
cmd.demod = state->mci.demod;
cmd.output = state->mci.nr;
stat = ddb_mci_cmd(&state->mci, &cmd, NULL);
if (stat)
stop(fe);
return stat;
}
static int set_parameters(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
int res;
//struct dtv_frontend_properties *p = &fe->dtv_property_cache;
stop(fe);
state->t2_signalling_valid = 0;
state->iq_constellation_point = 0;
state->iq_constellation_point_max = 0;
state->iq_constellation_tap = 0;
//printk("bw = %u\n", p->bandwidth_hz);
switch (fe->dtv_property_cache.delivery_system) {
case SYS_DVBS:
case SYS_DVBS2:
res = search_s2(fe);
break;
case SYS_DVBC_ANNEX_A:
res = search_c(fe);
break;
case SYS_DVBC_ANNEX_B:
res = search_j83b(fe);
break;
case SYS_DVBT:
state->iq_constellation_tap = 5;
res = search_t(fe);
break;
case SYS_DVBT2:
res = search_t2(fe);
break;
case SYS_DVBC2:
res = search_c2(fe);
break;
case SYS_ISDBT:
res = search_isdbt(fe);
break;
case SYS_ISDBS:
res = search_isdbs(fe);
break;
case SYS_DVBC_ANNEX_C:
case SYS_ISDBC:
res = search_isdbc(fe);
break;
default:
return -EINVAL;
}
if (!res) {
state->started = 1;
state->first_time_lock = 1;
}
return res;
}
static int read_status(struct dvb_frontend *fe, enum fe_status *status)
{
int stat;
struct m4 *state = fe->demodulator_priv;
struct mci_result res;
*status = 0x00;
if (!state->started)
return 0;
stat = ddb_mci_get_status(&state->mci, &res);
if (stat)
return stat;
stat = ddb_mci_get_info(&state->mci);
if (stat)
return stat;
ddb_mci_get_strength(fe);
if (res.status == MCI_DEMOD_WAIT_SIGNAL)
*status = 0x01;
else if (res.status == MX_DEMOD_WAIT_TS)
*status = 0x03;
else if (res.status == MCI_DEMOD_TIMEOUT)
*status = FE_TIMEDOUT;
else if (res.status == MCI_DEMOD_LOCKED) {
*status = 0x1f;
ddb_mci_get_snr(fe);
}
return stat;
}
static int tune(struct dvb_frontend *fe, bool re_tune,
unsigned int mode_flags,
unsigned int *delay, enum fe_status *status)
{
int r;
if (re_tune) {
r = set_parameters(fe);
if (r)
return r;
}
r = read_status(fe, status);
if (r)
return r;
if (*status & FE_HAS_LOCK)
return 0;
*delay = HZ / 10;
return 0;
}
static int sleep(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
if (state->started)
stop(fe);
return 0;
}
static void release(struct dvb_frontend *fe)
{
struct m4 *state = fe->demodulator_priv;
struct mci_base *mci_base = state->mci.base;
mci_base->count--;
if (mci_base->count == 0) {
list_del(&mci_base->mci_list);
kfree(mci_base);
}
kfree(state);
#ifdef CONFIG_MEDIA_ATTACH
__module_get(THIS_MODULE);
#endif
}
static enum dvbfe_algo get_algo(struct dvb_frontend *fe)
{
return DVBFE_ALGO_HW;
}
static int get_frontend(struct dvb_frontend *fe, struct dtv_frontend_properties *p)
{
struct m4 *state = fe->demodulator_priv;
ddb_mci_proc_info(&state->mci, p);
return 0;
}
static struct dvb_frontend_ops m4_ops = {
.delsys = { SYS_DVBC_ANNEX_A, SYS_DVBC_ANNEX_B, SYS_DVBC_ANNEX_C,
SYS_ISDBC, SYS_DVBC2,
SYS_DVBT, SYS_DVBT2, SYS_ISDBT,
SYS_DVBS, SYS_DVBS2, SYS_ISDBS, },
.info = {
.name = "M4",
.frequency_min_hz = 47125000, /* DVB-T: 47125000 */
.frequency_max_hz = 2150000000, /* DVB-C: 862000000 */
.symbol_rate_min = 100000,
.symbol_rate_max = 100000000,
.frequency_stepsize_hz = 0,
.frequency_tolerance_hz = 0,
.caps = FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_32 |
FE_CAN_QAM_64 | FE_CAN_QAM_128 | FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_4_5 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO |
FE_CAN_RECOVER | FE_CAN_MUTE_TS | FE_CAN_2G_MODULATION
},
.release = release,
.get_frontend_algo = get_algo,
.get_frontend = get_frontend,
.read_status = read_status,
.tune = tune,
.sleep = sleep,
};
static int init(struct mci *mci)
{
//struct m4 *state = (struct m4 *) mci;
return 0;
}
static int base_init(struct mci_base *mci_base)
{
//struct m4_base *base = (struct m4_base *) mci_base;
return 0;
}
static struct mci_cfg ddb_max_m4_cfg = {
.type = 0,
.fe_ops = &m4_ops,
.base_size = sizeof(struct m4_base),
.state_size = sizeof(struct m4),
.init = init,
.base_init = base_init,
};
static struct dvb_frontend_ops m_ops = {
.delsys = { SYS_DVBC_ANNEX_A, SYS_DVBC_ANNEX_B, SYS_DVBC_ANNEX_C,
SYS_ISDBC,
SYS_DVBT, SYS_DVBT2, SYS_ISDBT,
SYS_DVBS, SYS_DVBS2, SYS_ISDBS, },
.info = {
.name = "M_AS",
.frequency_min_hz = 47125000, /* DVB-T: 47125000 */
.frequency_max_hz = 2150000000, /* DVB-C: 862000000 */
.symbol_rate_min = 100000,
.symbol_rate_max = 100000000,
.frequency_stepsize_hz = 0,
.frequency_tolerance_hz = 0,
.caps = FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_32 |
FE_CAN_QAM_64 | FE_CAN_QAM_128 | FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_4_5 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO |
FE_CAN_RECOVER | FE_CAN_MUTE_TS | FE_CAN_2G_MODULATION
},
.release = release,
.get_frontend_algo = get_algo,
.get_frontend = get_frontend,
.read_status = read_status,
.tune = tune,
.sleep = sleep,
};
static struct mci_cfg ddb_max_m_cfg = {
.type = 0,
.fe_ops = &m_ops,
.base_size = sizeof(struct m4_base),
.state_size = sizeof(struct m4),
.init = init,
.base_init = base_init,
};
static struct dvb_frontend_ops m_s_ops = {
.delsys = { SYS_DVBS, SYS_DVBS2, SYS_ISDBS },
.info = {
.name = "M_S",
.frequency_min_hz = 47125000, /* DVB-T: 47125000 */
.frequency_max_hz = 2150000000, /* DVB-C: 862000000 */
.symbol_rate_min = 100000,
.symbol_rate_max = 100000000,
.frequency_stepsize_hz = 0,
.frequency_tolerance_hz = 0,
.caps = FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_32 |
FE_CAN_QAM_64 | FE_CAN_QAM_128 | FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_4_5 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO |
FE_CAN_RECOVER | FE_CAN_MUTE_TS | FE_CAN_2G_MODULATION
},
.release = release,
.get_frontend_algo = get_algo,
.get_frontend = get_frontend,
.read_status = read_status,
.tune = tune,
.sleep = sleep,
};
static struct mci_cfg ddb_max_m_s_cfg = {
.type = 0,
.fe_ops = &m_s_ops,
.base_size = sizeof(struct m4_base),
.state_size = sizeof(struct m4),
.init = init,
.base_init = base_init,
};
static struct dvb_frontend_ops m_a_ops = {
.delsys = { SYS_DVBC_ANNEX_A, SYS_DVBC_ANNEX_B, SYS_DVBC_ANNEX_C,
SYS_ISDBC,
SYS_DVBT, SYS_DVBT2, SYS_ISDBT,
},
.info = {
.name = "M_A",
.frequency_min_hz = 47125000, /* DVB-T: 47125000 */
.frequency_max_hz = 2150000000, /* DVB-C: 862000000 */
.symbol_rate_min = 100000,
.symbol_rate_max = 100000000,
.frequency_stepsize_hz = 0,
.frequency_tolerance_hz = 0,
.caps = FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_32 |
FE_CAN_QAM_64 | FE_CAN_QAM_128 | FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_4_5 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO |
FE_CAN_RECOVER | FE_CAN_MUTE_TS | FE_CAN_2G_MODULATION
},
.release = release,
.get_frontend_algo = get_algo,
.get_frontend = get_frontend,
.read_status = read_status,
.tune = tune,
.sleep = sleep,
};
static struct mci_cfg ddb_max_m_a_cfg = {
.type = 0,
.fe_ops = &m_a_ops,
.base_size = sizeof(struct m4_base),
.state_size = sizeof(struct m4),
.init = init,
.base_init = base_init,
};
static struct mci_cfg *ddb_max_cfgs [] = {
&ddb_max_m4_cfg,
&ddb_max_m_a_cfg,
&ddb_max_m_s_cfg,
&ddb_max_m_cfg,
};
struct dvb_frontend *ddb_mx_attach(struct ddb_input *input, int nr, int tuner, int type)
{
return ddb_mci_attach(input, ddb_max_cfgs[type], nr, tuner);
}
EXPORT_SYMBOL(ddb_mx_attach);
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