diff options
Diffstat (limited to 'util/femon/femon.c')
| -rw-r--r-- | util/femon/femon.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/util/femon/femon.c b/util/femon/femon.c new file mode 100644 index 0000000..46d239d --- /dev/null +++ b/util/femon/femon.c @@ -0,0 +1,175 @@ +/* femon -- monitor frontend status + * + * Copyright (C) 2003 convergence GmbH + * Johannes Stezenbach <js@convergence.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <limits.h> +#include <string.h> +#include <errno.h> +#include <sys/ioctl.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/poll.h> +#include <fcntl.h> +#include <time.h> +#include <unistd.h> + +#include <stdint.h> +#include <sys/time.h> + +#include <libdvbapi/dvbfe.h> + +#define FE_STATUS_PARAMS (DVBFE_INFO_LOCKSTATUS|DVBFE_INFO_SIGNAL_STRENGTH|DVBFE_INFO_BER|DVBFE_INFO_SNR|DVBFE_INFO_UNCORRECTED_BLOCKS) + +static char *usage_str = + "\nusage: femon [options]\n" + " -H : human readable output\n" + " -a number : use given adapter (default 0)\n" + " -f number : use given frontend (default 0)\n" + " -c number : samples to take (default 0 = infinite)\n\n"; + + +static void usage(void) +{ + fprintf(stderr, usage_str); + exit(1); +} + + +static +int check_frontend (struct dvbfe_handle *fe, int human_readable, unsigned int count) +{ + struct dvbfe_info fe_info; + unsigned int samples = 0; + + do { + if (dvbfe_get_info(fe, FE_STATUS_PARAMS, &fe_info, DVBFE_INFO_QUERYTYPE_IMMEDIATE, 0) != FE_STATUS_PARAMS) { + fprintf(stderr, "Problem retrieving frontend information: %m\n"); + } + + + + if (human_readable) { + printf ("status %c%c%c%c%c | signal %3u%% | snr %3u%% | ber %d | unc %d | ", + fe_info.signal ? 'S' : ' ', + fe_info.carrier ? 'C' : ' ', + fe_info.viterbi ? 'V' : ' ', + fe_info.sync ? 'Y' : ' ', + fe_info.lock ? 'L' : ' ', + (fe_info.signal_strength * 100) / 0xffff, + (fe_info.snr * 100) / 0xffff, + fe_info.ber, + fe_info.ucblocks); + } else { + printf ("status %c%c%c%c%c | signal %04x | snr %04x | ber %08x | unc %08x | ", + fe_info.signal ? 'S' : ' ', + fe_info.carrier ? 'C' : ' ', + fe_info.viterbi ? 'V' : ' ', + fe_info.sync ? 'Y' : ' ', + fe_info.lock ? 'L' : ' ', + fe_info.signal_strength, + fe_info.snr, + fe_info.ber, + fe_info.ucblocks); + } + + if (fe_info.lock) + printf("FE_HAS_LOCK"); + + printf("\n"); + fflush(stdout); + usleep(1000000); + samples++; + } while ((!count) || (count-samples)); + + return 0; +} + + +static +int do_mon(unsigned int adapter, unsigned int frontend, int human_readable, unsigned int count) +{ + int result; + struct dvbfe_handle *fe; + struct dvbfe_info fe_info; + char *fe_type = "UNKNOWN"; + + fe = dvbfe_open(adapter, frontend, 1); + if (fe == NULL) { + perror("opening frontend failed"); + return 0; + } + + dvbfe_get_info(fe, 0, &fe_info, DVBFE_INFO_QUERYTYPE_IMMEDIATE, 0); + switch(fe_info.type) { + case DVBFE_TYPE_DVBS: + fe_type = "DVBS"; + break; + case DVBFE_TYPE_DVBC: + fe_type = "DVBC"; + break; + case DVBFE_TYPE_DVBT: + fe_type = "DVBT"; + break; + case DVBFE_TYPE_ATSC: + fe_type = "ATSC"; + break; + } + printf("FE: %s (%s)\n", fe_info.name, fe_type); + + result = check_frontend (fe, human_readable, count); + + dvbfe_close(fe); + + return result; +} + +int main(int argc, char *argv[]) +{ + unsigned int adapter = 0, frontend = 0, count = 0; + int human_readable = 0; + int opt; + + while ((opt = getopt(argc, argv, "Ha:f:c:")) != -1) { + switch (opt) + { + default: + usage(); + break; + case 'a': + adapter = strtoul(optarg, NULL, 0); + break; + case 'c': + count = strtoul(optarg, NULL, 0); + break; + case 'f': + frontend = strtoul(optarg, NULL, 0); + break; + case 'H': + human_readable = 1; + break; + } + } + + do_mon(adapter, frontend, human_readable, count); + + return 0; +} |