lcd4linux.git - lcd4linux

Age	Commit message (Expand)	Author	Files	Lines
2012-01-08	ATCH 1/2] gcc warnings by Jonathan McCrohan	michael	1	-2/+2
2009-09-23	indentation	michael	1	-1/+2
2009-07-18	indent run	michael	1	-323/+234
2009-05-11	add qnap log plugin, thanks to rolf tralow	michux	1	-0/+515

/* $Id$ * $URL$ * * plugin for DVB status * * Copyright (C) 2003 Michael Reinelt <michael@reinelt.co.at> * Copyright (C) 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. * */ /* * 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) { static int ioc_disable = 0; 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; } sig = 0; if ((ioc_disable & 0x01) == 0 && ioctl(fd, FE_READ_SIGNAL_STRENGTH, &sig) != 0) { error("ioctl(FE_READ_SIGNAL_STRENGTH) failed: %s", strerror(errno)); if (errno == ENOSYS) { ioc_disable |= 0x01; error("ioctl(FE_READ_SIGNAL_STRENGTH) disabled."); } } snr = 0; if ((ioc_disable & 0x02) == 0 && ioctl(fd, FE_READ_SNR, &snr) != 0) { error("ioctl(FE_READ_SNR) failed: %s", strerror(errno)); if (errno == ENOSYS) { ioc_disable |= 0x02; error("ioctl(FE_READ_SNR) disabled."); } } ber = 0; if ((ioc_disable & 0x04) == 0 && ioctl(fd, FE_READ_BER, &ber) != 0) { error("ioctl(FE_READ_BER) failed: %s", strerror(errno)); if (errno == ENOSYS) { ioc_disable |= 0x04; error("ioctl(FE_READ_BER) disabled."); } } ucb = 0; if ((ioc_disable & 0x08) == 0 && ioctl(fd, FE_READ_UNCORRECTED_BLOCKS, &ucb) != 0) { error("ioctl(FE_READ_UNCORRECTED_BLOCKS) failed: %s", strerror(errno)); if (errno == ENOSYS) { ioc_disable |= 0x08; error("ioctl(FE_READ_UNCORRECTED_BLOCKS) disabled."); } } 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); }