/* $Id: plugin_dvb.c,v 1.9 2005/05/08 04:32:44 reinelt Exp $ * * plugin for DVB status * * Copyright (C) 2003 Michael Reinelt * Copyright (C) 2004 The LCD4Linux Team * * 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 1.9 2005/05/08 04:32:44 reinelt * CodingStyle added and applied * * Revision 1.8 2005/01/18 06:30:23 reinelt * added (C) to all copyright statements * * 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 #include #include #include #include #include #include #include #include #ifdef HAVE_LINUX_DVB_FRONTEND_H #include #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); } &follow=1'>[lcd4linux @ 2005-05-06 05:36:58 by reinelt]reinelt6-238/+0 2005-05-05[lcd4linux @ 2005-05-05 08:36:12 by reinelt]reinelt6-15/+34 2005-05-04[lcd4linux @ 2005-05-04 07:18:44 by obconseil]obconseil1-36/+84 2005-05-04[lcd4linux @ 2005-05-04 06:13:05 by reinelt]reinelt2-12/+77 2005-05-04[lcd4linux @ 2005-05-04 05:42:37 by reinelt]reinelt7-23/+398 2005-05-04[lcd4linux @ 2005-05-04 05:22:12 by reinelt]reinelt1-28/+31 2005-05-03[lcd4linux @ 2005-05-03 11:13:23 by reinelt]reinelt6-30/+122 2005-05-02[lcd4linux @ 2005-05-02 10:29:20 by reinelt]reinelt9-30/+636 2005-05-02[lcd4linux @ 2005-05-02 05:15:46 by reinelt]reinelt4-9/+51 2005-04-30[lcd4linux @ 2005-04-30 06:02:09 by reinelt]reinelt3-15/+44 2005-04-24[lcd4linux @ 2005-04-24 05:27:09 by reinelt]reinelt2-7/+38 2005-04-24[lcd4linux @ 2005-04-24 04:41:28 by reinelt]reinelt1-0/+68 2005-04-24[lcd4linux @ 2005-04-24 04:33:46 by reinelt]reinelt9-10/+444 2005-04-20[lcd4linux @ 2005-04-20 05:49:21 by reinelt]reinelt1-44/+125 2005-04-09[lcd4linux @ 2005-04-09 07:36:42 by reinelt]reinelt2-17/+99 2005-04-05[lcd4linux @ 2005-04-05 06:57:39 by reinelt]reinelt3-34/+34 2005-04-05[lcd4linux @ 2005-04-05 05:12:48 by reinelt]reinelt4-407/+33 2005-04-05[lcd4linux @ 2005-04-05 04:46:06 by reinelt]reinelt1-1/+20 2005-04-04[lcd4linux @ 2005-04-04 20:11:14 by nicowallmeier]nicowallmeier1-2/+6 2005-04-03[lcd4linux @ 2005-04-03 07:07:43 by reinelt]reinelt8-9/+152 2005-04-02[lcd4linux @ 2005-04-02 05:28:58 by reinelt]reinelt3-19/+27 2005-04-01[lcd4linux @ 2005-04-01 05:16:04 by reinelt]reinelt5-584/+694 2005-03-30[lcd4linux @ 2005-03-30 04:57:50 by reinelt]reinelt3-23/+67 2005-03-28[lcd4linux @ 2005-03-28 22:29:23 by reinelt]reinelt1-250/+346 2005-03-28[lcd4linux @ 2005-03-28 19:39:14 by reinelt]reinelt9-256/+1147 2005-03-25[lcd4linux @ 2005-03-25 15:44:43 by reinelt]reinelt1-2/+5 2005-03-23[lcd4linux @ 2005-03-23 12:23:35 by reinelt]reinelt1-27/+32 2005-02-24[lcd4linux @ 2005-02-24 07:07:55 by reinelt]reinelt1-0/+53 2005-02-24[lcd4linux @ 2005-02-24 07:06:45 by reinelt]reinelt11-28/+347 2005-02-24[lcd4linux @ 2005-02-24 06:51:40 by reinelt]reinelt1-4/+5 2005-01-30[lcd4linux @ 2005-01-30 06:43:22 by reinelt]reinelt4-69/+95 2005-01-29[lcd4linux @ 2005-01-29 09:30:56 by reinelt]reinelt1-8/+11 2005-01-22[lcd4linux @ 2005-01-22 22:57:57 by reinelt]reinelt9-47/+382 2005-01-22[lcd4linux @ 2005-01-22 12:44:41 by reinelt]reinelt1-3/+6 2005-01-18[lcd4linux @ 2005-01-18 06:30:21 by reinelt]reinelt89-261/+603 2005-01-17[lcd4linux @ 2005-01-17 06:38:48 by reinelt]reinelt1-1/+6 2005-01-17[lcd4linux @ 2005-01-17 06:29:24 by reinelt]reinelt3-33/+85