/* * dvbcfg - support for linuxtv configuration files * scan channel file support * * Copyright (C) 2006 Christoph Pfister * Copyright (C) 2005 Andrew de Quincey * * 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 #include #include "dvbcfg_scanfile.h" #include "dvbcfg_common.h" static const struct dvbcfg_setting dvbcfg_fec_list[] = { { "1/2", DVBFE_FEC_1_2 }, { "2/3", DVBFE_FEC_2_3 }, { "3/4", DVBFE_FEC_3_4 }, { "4/5", DVBFE_FEC_4_5 }, { "5/6", DVBFE_FEC_5_6 }, { "6/7", DVBFE_FEC_6_7 }, { "7/8", DVBFE_FEC_7_8 }, { "8/9", DVBFE_FEC_8_9 }, { "AUTO", DVBFE_FEC_AUTO }, { "NONE", DVBFE_FEC_NONE }, { NULL, 0 } }; static const struct dvbcfg_setting dvbcfg_dvbc_modulation_list[] = { { "QAM16", DVBFE_DVBC_MOD_QAM_16 }, { "QAM32", DVBFE_DVBC_MOD_QAM_32 }, { "QAM64", DVBFE_DVBC_MOD_QAM_64 }, { "QAM128", DVBFE_DVBC_MOD_QAM_128 }, { "QAM256", DVBFE_DVBC_MOD_QAM_256 }, { "AUTO", DVBFE_DVBC_MOD_AUTO }, { NULL, 0 } }; static const struct dvbcfg_setting dvbcfg_bandwidth_list[] = { { "6MHz", DVBFE_DVBT_BANDWIDTH_6_MHZ }, { "7MHz", DVBFE_DVBT_BANDWIDTH_7_MHZ }, { "8MHz", DVBFE_DVBT_BANDWIDTH_8_MHZ }, { "AUTO", DVBFE_DVBT_BANDWIDTH_AUTO }, { NULL, 0 } }; static const struct dvbcfg_setting dvbcfg_constellation_list[] = { { "QAM16", DVBFE_DVBT_CONST_QAM_16 }, { "QAM32", DVBFE_DVBT_CONST_QAM_32 }, { "QAM64", DVBFE_DVBT_CONST_QAM_64 }, { "QAM128", DVBFE_DVBT_CONST_QAM_128 }, { "QAM256", DVBFE_DVBT_CONST_QAM_256 }, { "QPSK", DVBFE_DVBT_CONST_QPSK }, { "AUTO", DVBFE_DVBT_CONST_AUTO }, { NULL, 0 } }; static const struct dvbcfg_setting dvbcfg_transmission_mode_list[] = { { "2k", DVBFE_DVBT_TRANSMISSION_MODE_2K }, { "8k", DVBFE_DVBT_TRANSMISSION_MODE_8K }, { "AUTO", DVBFE_DVBT_TRANSMISSION_MODE_AUTO }, { NULL, 0 } }; static const struct dvbcfg_setting dvbcfg_guard_interval_list[] = { { "1/32", DVBFE_DVBT_GUARD_INTERVAL_1_32 }, { "1/16", DVBFE_DVBT_GUARD_INTERVAL_1_16 }, { "1/8", DVBFE_DVBT_GUARD_INTERVAL_1_8 }, { "1/4", DVBFE_DVBT_GUARD_INTERVAL_1_4 }, { "AUTO", DVBFE_DVBT_GUARD_INTERVAL_AUTO }, { NULL, 0 } }; static const struct dvbcfg_setting dvbcfg_hierarchy_list[] = { { "1", DVBFE_DVBT_HIERARCHY_1 }, { "2", DVBFE_DVBT_HIERARCHY_2 }, { "4", DVBFE_DVBT_HIERARCHY_4 }, { "AUTO", DVBFE_DVBT_HIERARCHY_AUTO }, { "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 }, { "QAM64", DVBFE_ATSC_MOD_QAM_64 }, { "QAM256", DVBFE_ATSC_MOD_QAM_256 }, { NULL, 0 } }; int dvbcfg_scanfile_parse(FILE *file, dvbcfg_scancallback 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_scanfile tmp; /* remove newline and comments (started with hashes) */ while ((*line_tmp != '\0') && (*line_tmp != '\n') && (*line_tmp != '#')) line_tmp++; *line_tmp = '\0'; /* always use inversion auto */ tmp.fe_params.inversion = DVBFE_INVERSION_AUTO; /* parse frontend type */ switch(dvbcfg_parse_char(&line_pos, " ")) { case 'T': tmp.fe_type = DVBFE_TYPE_DVBT; break; case 'C': tmp.fe_type = DVBFE_TYPE_DVBC; break; case 'S': tmp.fe_type = DVBFE_TYPE_DVBS; break; case 'A': tmp.fe_type = DVBFE_TYPE_ATSC; break; default: continue; } /* parse frontend specific settings */ switch (tmp.fe_type) { case DVBFE_TYPE_ATSC: /* parse frequency */ tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, " "); if (!line_pos) continue; /* 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: /* parse frequency */ tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, " "); 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: /* parse frequency */ tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, " "); if (!line_pos) continue; /* 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; /* symbol rate */ tmp.fe_params.u.dvbs.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; break; case DVBFE_TYPE_DVBT: /* parse frequency */ tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, " "); 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; } /* 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; }