dtv-scan-tables.git - Digital TV scan tables

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Diffstat (limited to 'dvb-s')

0 files changed, 0 insertions, 0 deletions

/* $Id: plugin_dvb.c,v 1.7 2004/06/26 12:05:00 reinelt Exp $ * * plugin for DVB status * * Copyright 2003 Michael Reinelt <reinelt@eunet.at> * Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> * * This file is part of LCD4Linux. * * LCD4Linux 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, or (at your option) * any later version. * * LCD4Linux 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. * * * $Log: plugin_dvb.c,v $ * Revision 1.7 2004/06/26 12:05:00 reinelt * * uh-oh... the last CVS log message messed up things a lot... * * Revision 1.6 2004/06/26 09:27:21 reinelt * * added '-W' to CFLAGS * changed all C++ comments to C ones * cleaned up a lot of signed/unsigned mistakes * * Revision 1.5 2004/06/17 06:23:43 reinelt * * hash handling rewritten to solve performance issues * * Revision 1.4 2004/03/14 07:11:42 reinelt * parameter count fixed for plugin_dvb() * plugin_APM (battery status) ported * * Revision 1.3 2004/03/03 03:47:04 reinelt * big patch from Martin Hejl: * - use qprintf() where appropriate * - save CPU cycles on gettimeofday() * - add quit() functions to free allocated memory * - fixed lots of memory leaks * * Revision 1.2 2004/02/16 13:03:37 reinelt * compile problem with missing frontend.h fixed * * Revision 1.1 2004/02/10 06:54:39 reinelt * DVB plugin ported * */ /* * exported functions: * * int plugin_init_dvb (void) * adds dvb() function * */ #include "config.h" #include <stdlib.h> #include <stdio.h> #include <fcntl.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <sys/ioctl.h> #include <sys/types.h> #include <asm/types.h> #ifdef HAVE_LINUX_DVB_FRONTEND_H #include <linux/dvb/frontend.h> #else #warning linux/dvb/frontend.h not found: using hardcoded ioctl definitions #define FE_READ_BER _IOR('o', 70, __u32) #define FE_READ_SIGNAL_STRENGTH _IOR('o', 71, __u16) #define FE_READ_SNR _IOR('o', 72, __u16) #define FE_READ_UNCORRECTED_BLOCKS _IOR('o', 73, __u32) #endif #include "debug.h" #include "plugin.h" #include "hash.h" static char *frontend="/dev/dvb/adapter0/frontend0"; static HASH DVB; static int get_dvb_stats (void) { int age; int fd; unsigned short snr, sig; unsigned long ber, ucb; char val[16]; /* reread every 1000 msec only */ age = hash_age(&DVB, NULL); if (age > 0 && age <= 1000) return 0; /* open frontend */ fd = open(frontend, O_RDONLY); if (fd == -1) { error ("open(%s) failed: %s", frontend, strerror(errno)); return -1; } if (ioctl(fd, FE_READ_SIGNAL_STRENGTH, &sig) != 0) { error("ioctl(FE_READ_SIGNAL_STRENGTH) failed: %s", strerror(errno)); sig = 0; } if (ioctl(fd, FE_READ_SNR, &snr) != 0) { error("ioctl(FE_READ_SNR) failed: %s", strerror(errno)); snr = 0; } if (ioctl(fd, FE_READ_BER, &ber) != 0) { error("ioctl(FE_READ_BER) failed: %s", strerror(errno)); ber = 0; } if (ioctl(fd, FE_READ_UNCORRECTED_BLOCKS, &ucb) != 0) { error("ioctl(FE_READ_UNCORRECTED_BLOCKS) failed: %s", strerror(errno)); ucb = 0; } close (fd); snprintf (val, sizeof(val), "%f", sig/65535.0); hash_put (&DVB, "signal_strength", val); snprintf (val, sizeof(val), "%f", snr/65535.0); hash_put (&DVB, "snr", val); snprintf (val, sizeof(val), "%lu", ber); hash_put (&DVB, "ber", val); snprintf (val, sizeof(val), "%lu", ucb); hash_put (&DVB, "uncorrected_blocks", val); return 0; } static void my_dvb (RESULT *result, RESULT *arg1) { char *val; if (get_dvb_stats()<0) { SetResult(&result, R_STRING, ""); return; } val=hash_get(&DVB, R2S(arg1), NULL); if (val==NULL) val=""; SetResult(&result, R_STRING, val); } int plugin_init_dvb (void) { hash_create(&DVB); AddFunction ("dvb", 1, my_dvb); return 0; } void plugin_exit_dvb(void) { hash_destroy(&DVB); }


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