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/*
* dvbcfg - support for linuxtv configuration files
* zap channel file support
*
* Copyright (C) 2006 Christoph Pfister <christophpfister@gmail.com>
* Copyright (C) 2005 Andrew de Quincey <adq_dvb@lidskialf.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define _GNU_SOURCE
#include <malloc.h>
#include <string.h>
#include <ctype.h>
#include "dvbcfg_zapchannel.h"
#include "dvbcfg_common.h"
static const struct dvbcfg_setting dvbcfg_inversion_list[] = {
{ "INVERSION_ON", DVBFE_INVERSION_ON },
{ "INVERSION_OFF", DVBFE_INVERSION_OFF },
{ "INVERSION_AUTO", DVBFE_INVERSION_AUTO },
{ NULL, 0 }
};
static const struct dvbcfg_setting dvbcfg_fec_list[] = {
{ "FEC_1_2", DVBFE_FEC_1_2 },
{ "FEC_2_3", DVBFE_FEC_2_3 },
{ "FEC_3_4", DVBFE_FEC_3_4 },
{ "FEC_4_5", DVBFE_FEC_4_5 },
{ "FEC_5_6", DVBFE_FEC_5_6 },
{ "FEC_6_7", DVBFE_FEC_6_7 },
{ "FEC_7_8", DVBFE_FEC_7_8 },
{ "FEC_8_9", DVBFE_FEC_8_9 },
{ "FEC_AUTO", DVBFE_FEC_AUTO },
{ "FEC_NONE", DVBFE_FEC_NONE },
{ NULL, 0 }
};
static const struct dvbcfg_setting dvbcfg_dvbc_modulation_list[] = {
{ "QAM_16", DVBFE_DVBC_MOD_QAM_16 },
{ "QAM_32", DVBFE_DVBC_MOD_QAM_32 },
{ "QAM_64", DVBFE_DVBC_MOD_QAM_64 },
{ "QAM_128", DVBFE_DVBC_MOD_QAM_128 },
{ "QAM_256", DVBFE_DVBC_MOD_QAM_256 },
{ "QAM_AUTO", DVBFE_DVBC_MOD_AUTO },
{ NULL, 0 }
};
static const struct dvbcfg_setting dvbcfg_bandwidth_list[] = {
{ "BANDWIDTH_6_MHZ", DVBFE_DVBT_BANDWIDTH_6_MHZ },
{ "BANDWIDTH_7_MHZ", DVBFE_DVBT_BANDWIDTH_7_MHZ },
{ "BANDWIDTH_8_MHZ", DVBFE_DVBT_BANDWIDTH_8_MHZ },
{ "BANDWIDTH_AUTO", DVBFE_DVBT_BANDWIDTH_AUTO },
{ NULL, 0 }
};
static const struct dvbcfg_setting dvbcfg_constellation_list[] = {
{ "QAM_16", DVBFE_DVBT_CONST_QAM_16 },
{ "QAM_32", DVBFE_DVBT_CONST_QAM_32 },
{ "QAM_64", DVBFE_DVBT_CONST_QAM_64 },
{ "QAM_128", DVBFE_DVBT_CONST_QAM_128 },
{ "QAM_256", DVBFE_DVBT_CONST_QAM_256 },
{ "QPSK", DVBFE_DVBT_CONST_QPSK },
{ "QAM_AUTO", DVBFE_DVBT_CONST_AUTO },
{ NULL, 0 }
};
static const struct dvbcfg_setting dvbcfg_transmission_mode_list[] = {
{ "TRANSMISSION_MODE_2K", DVBFE_DVBT_TRANSMISSION_MODE_2K },
{ "TRANSMISSION_MODE_8K", DVBFE_DVBT_TRANSMISSION_MODE_8K },
{ "TRANSMISSION_MODE_AUTO", DVBFE_DVBT_TRANSMISSION_MODE_AUTO },
{ NULL, 0 }
};
static const struct dvbcfg_setting dvbcfg_guard_interval_list[] = {
{ "GUARD_INTERVAL_1_32", DVBFE_DVBT_GUARD_INTERVAL_1_32 },
{ "GUARD_INTERVAL_1_16", DVBFE_DVBT_GUARD_INTERVAL_1_16 },
{ "GUARD_INTERVAL_1_8", DVBFE_DVBT_GUARD_INTERVAL_1_8 },
{ "GUARD_INTERVAL_1_4", DVBFE_DVBT_GUARD_INTERVAL_1_4 },
{ "GUARD_INTERVAL_AUTO", DVBFE_DVBT_GUARD_INTERVAL_AUTO },
{ NULL, 0 }
};
static const struct dvbcfg_setting dvbcfg_hierarchy_list[] = {
{ "HIERARCHY_1", DVBFE_DVBT_HIERARCHY_1 },
{ "HIERARCHY_2", DVBFE_DVBT_HIERARCHY_2 },
{ "HIERARCHY_4", DVBFE_DVBT_HIERARCHY_4 },
{ "HIERARCHY_AUTO", DVBFE_DVBT_HIERARCHY_AUTO },
{ "HIERARCHY_NONE", DVBFE_DVBT_HIERARCHY_NONE },
{ NULL, 0 }
};
static const struct dvbcfg_setting dvbcfg_atsc_modulation_list[] = {
{ "8VSB", DVBFE_ATSC_MOD_VSB_8 },
{ "16VSB", DVBFE_ATSC_MOD_VSB_16 },
{ "QAM_64", DVBFE_ATSC_MOD_QAM_64 },
{ "QAM_256", DVBFE_ATSC_MOD_QAM_256 },
{ NULL, 0 }
};
int dvbcfg_zapchannel_parse(FILE *file, dvbcfg_zapcallback callback, void *private_data)
{
char *line_buf = NULL;
size_t line_size = 0;
int line_len = 0;
int ret_val = 0;
while ((line_len = getline(&line_buf, &line_size, file)) > 0) {
char *line_tmp = line_buf;
char *line_pos = line_buf;
struct dvbcfg_zapchannel tmp;
/* remove newline and comments (started with hashes) */
while ((*line_tmp != '\0') && (*line_tmp != '\n') && (*line_tmp != '#'))
line_tmp++;
*line_tmp = '\0';
/* parse name */
dvbcfg_parse_string(&line_pos, ":", tmp.name, sizeof(tmp.name));
if (!line_pos)
continue;
/* parse frequency */
tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, ":");
if (!line_pos)
continue;
/* try to determine frontend type */
if (strstr(line_pos, ":FEC_")) {
if (strstr(line_pos, ":HIERARCHY_"))
tmp.fe_type = DVBFE_TYPE_DVBT;
else
tmp.fe_type = DVBFE_TYPE_DVBC;
} else {
if (strstr(line_pos, "VSB:") || strstr(line_pos, "QAM_"))
tmp.fe_type = DVBFE_TYPE_ATSC;
else
tmp.fe_type = DVBFE_TYPE_DVBS;
}
/* parse frontend specific settings */
switch (tmp.fe_type) {
case DVBFE_TYPE_ATSC:
/* inversion */
tmp.fe_params.inversion = DVBFE_INVERSION_AUTO;
/* modulation */
tmp.fe_params.u.atsc.modulation =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_atsc_modulation_list);
if (!line_pos)
continue;
break;
case DVBFE_TYPE_DVBC:
/* inversion */
tmp.fe_params.inversion =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_inversion_list);
if (!line_pos)
continue;
/* symbol rate */
tmp.fe_params.u.dvbc.symbol_rate = dvbcfg_parse_int(&line_pos, ":");
if (!line_pos)
continue;
/* fec */
tmp.fe_params.u.dvbc.fec_inner =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_fec_list);
if (!line_pos)
continue;
/* modulation */
tmp.fe_params.u.dvbc.modulation =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_dvbc_modulation_list);
if (!line_pos)
continue;
break;
case DVBFE_TYPE_DVBS:
/* adjust frequency */
tmp.fe_params.frequency *= 1000;
/* inversion */
tmp.fe_params.inversion = DVBFE_INVERSION_AUTO;
/* fec */
tmp.fe_params.u.dvbs.fec_inner = DVBFE_FEC_AUTO;
/* polarization */
tmp.polarization = tolower(dvbcfg_parse_char(&line_pos, ":"));
if (!line_pos)
continue;
if ((tmp.polarization != 'h') &&
(tmp.polarization != 'v') &&
(tmp.polarization != 'l') &&
(tmp.polarization != 'r'))
continue;
/* satellite switch position */
tmp.diseqc_switch = dvbcfg_parse_int(&line_pos, ":");
if (!line_pos)
continue;
/* symbol rate */
tmp.fe_params.u.dvbs.symbol_rate =
dvbcfg_parse_int(&line_pos, ":") * 1000;
if (!line_pos)
continue;
break;
case DVBFE_TYPE_DVBT:
/* inversion */
tmp.fe_params.inversion =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_inversion_list);
if (!line_pos)
continue;
/* bandwidth */
tmp.fe_params.u.dvbt.bandwidth =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_bandwidth_list);
if (!line_pos)
continue;
/* fec hp */
tmp.fe_params.u.dvbt.code_rate_HP =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_fec_list);
if (!line_pos)
continue;
/* fec lp */
tmp.fe_params.u.dvbt.code_rate_LP =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_fec_list);
if (!line_pos)
continue;
/* constellation */
tmp.fe_params.u.dvbt.constellation =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_constellation_list);
if (!line_pos)
continue;
/* transmission mode */
tmp.fe_params.u.dvbt.transmission_mode =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_transmission_mode_list);
if (!line_pos)
continue;
/* guard interval */
tmp.fe_params.u.dvbt.guard_interval =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_guard_interval_list);
if (!line_pos)
continue;
/* hierarchy */
tmp.fe_params.u.dvbt.hierarchy_information =
dvbcfg_parse_setting(&line_pos, ":", dvbcfg_hierarchy_list);
if (!line_pos)
continue;
break;
}
/* parse video and audio pids and service id */
tmp.video_pid = dvbcfg_parse_int(&line_pos, ":");
if (!line_pos)
continue;
tmp.audio_pid = dvbcfg_parse_int(&line_pos, ":");
if (!line_pos)
continue;
tmp.service_id = dvbcfg_parse_int(&line_pos, ":");
if (!line_pos) /* old files don't have a service id */
tmp.service_id = 0;
/* invoke callback */
if ((ret_val = callback(&tmp, private_data)) != 0) {
if (ret_val < 0)
ret_val = 0;
break;
}
}
if (line_buf)
free(line_buf);
return ret_val;
}
int dvbcfg_zapchannel_save(FILE *file, dvbcfg_zapcallback callback, void *private_data)
{
int ret_val = 0;
struct dvbcfg_zapchannel tmp;
while ((ret_val = callback(&tmp, private_data)) == 0) {
/* name */
if ((ret_val = fprintf(file, "%s:", tmp.name)) < 0)
return ret_val;
/* frontend specific settings */
switch (tmp.fe_type) {
case DVBFE_TYPE_ATSC:
if ((ret_val = fprintf(file, "%i:%s:",
tmp.fe_params.frequency,
dvbcfg_lookup_setting(tmp.fe_params.u.atsc.modulation,
dvbcfg_atsc_modulation_list))) < 0)
return ret_val;
break;
case DVBFE_TYPE_DVBC:
if ((ret_val = fprintf(file, "%i:%s:%i:%s:%s:",
tmp.fe_params.frequency,
dvbcfg_lookup_setting(tmp.fe_params.inversion,
dvbcfg_inversion_list),
tmp.fe_params.u.dvbc.symbol_rate,
dvbcfg_lookup_setting(tmp.fe_params.u.dvbc.fec_inner,
dvbcfg_fec_list),
dvbcfg_lookup_setting(tmp.fe_params.u.dvbc.modulation,
dvbcfg_dvbc_modulation_list))) < 0)
return ret_val;
break;
case DVBFE_TYPE_DVBS:
if ((ret_val = fprintf(file, "%i:%c:%i:%i:",
tmp.fe_params.frequency / 1000,
tolower(tmp.polarization),
tmp.diseqc_switch,
tmp.fe_params.u.dvbs.symbol_rate / 1000)) < 0)
return ret_val;
break;
case DVBFE_TYPE_DVBT:
if ((ret_val = fprintf(file, "%i:%s:%s:%s:%s:%s:%s:%s:%s:",
tmp.fe_params.frequency,
dvbcfg_lookup_setting(tmp.fe_params.inversion,
dvbcfg_inversion_list),
dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.bandwidth,
dvbcfg_bandwidth_list),
dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.code_rate_HP,
dvbcfg_fec_list),
dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.code_rate_LP,
dvbcfg_fec_list),
dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.constellation,
dvbcfg_constellation_list),
dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.transmission_mode,
dvbcfg_transmission_mode_list),
dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.guard_interval,
dvbcfg_guard_interval_list),
dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.hierarchy_information,
dvbcfg_hierarchy_list))) < 0)
return ret_val;
break;
}
/* video and audio pids and service id */
if ((ret_val = fprintf(file, "%i:%i:%i\n",
tmp.video_pid, tmp.audio_pid, tmp.service_id)) < 0)
return ret_val;
}
if (ret_val < 0)
ret_val = 0;
return ret_val;
}
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