processor.c

嵌入式linux下液晶编程院代码, 可以在LINUX2.4内核下运行

/* $Id: processor.c,v 1.45 2003/09/11 04:09:53 reinelt Exp $
 *
 * main data processing
 *
 * Copyright 1999, 2000 by Michael Reinelt ([e-mail])
 *
 * 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, 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.
 *
 *
 * $Log: processor.c,v $
 * Revision 1.45  2003/09/11 04:09:53  reinelt
 * minor cleanups
 *
 * Revision 1.44  2003/09/10 15:59:39  reinelt
 * minor cleanups
 *
 * Revision 1.43  2003/09/10 14:01:53  reinelt
 * icons nearly finished\!
 *
 * Revision 1.42  2003/09/10 08:37:09  reinelt
 * icons: reorganized tick_* again...
 *
 * Revision 1.41  2003/09/10 03:48:23  reinelt
 * Icons for M50530, new processing scheme (Ticks.Text...)
 *
 * Revision 1.40  2003/09/09 06:54:43  reinelt
 * new function 'cfg_number()'
 *
 * Revision 1.39  2003/09/09 05:30:34  reinelt
 * even more icons stuff
 *
 * Revision 1.38  2003/09/01 04:09:35  reinelt
 * icons nearly finished, but MatrixOrbital only
 *
 * Revision 1.37  2003/08/24 05:17:58  reinelt
 * liblcd4linux patch from Patrick Schemitz
 *
 * Revision 1.36  2003/08/17 16:37:39  reinelt
 * more icon framework
 *
 * Revision 1.35  2003/07/24 04:48:09  reinelt
 * 'soft clear' needed for virtual rows
 *
 * Revision 1.34  2003/07/21 06:34:14  reinelt
 * bars on virtual rows fixed
 *
 * Revision 1.33  2003/07/21 06:10:11  reinelt
 * removed maxlen parameter from process_row()
 *
 * Revision 1.32  2003/06/21 05:46:18  reinelt
 * DVB client integrated
 *
 * Revision 1.31  2003/06/13 06:35:56  reinelt
 * added scrolling capability
 *
 * Revision 1.30  2003/02/22 07:53:10  reinelt
 * cfg_get(key,defval)
 *
 * Revision 1.29  2003/02/05 04:31:38  reinelt
 *
 * T_EXEC: remove trailing CR/LF
 * T_EXEC: deactivated maxlen calculation (for I don't understand what it is for :-)
 *
 * Revision 1.28  2002/12/05 19:23:01  reinelt
 * fixed undefined operations found by gcc3
 *
 * Revision 1.27  2002/08/19 04:41:20  reinelt
 * introduced bar.c, moved bar stuff from display.h to bar.h
 *
 * Revision 1.26  2001/05/06 10:01:27  reinelt
 *
 * fixed a bug which prevented extendet tokens to be used for GPO's
 * many thanks to Carsten Nau!
 *
 * Revision 1.25  2001/03/17 11:11:31  ltoetsch
 * bugfix: max for BAR_T
 *
 * Revision 1.24  2001/03/16 16:40:17  ltoetsch
 * implemented time bar
 *
 * Revision 1.23  2001/03/16 09:28:08  ltoetsch
 * bugfixes
 *
 * Revision 1.22  2001/03/15 15:49:23  ltoetsch
 * fixed compile HD44780.c, cosmetics
 *
 * Revision 1.21  2001/03/15 09:47:13  reinelt
 *
 * some fixes to ppdef
 * off-by-one bug in processor.c fixed
 *
 * Revision 1.20  2001/03/14 13:19:29  ltoetsch
 * Added pop3/imap4 mail support
 *
 * Revision 1.19  2001/03/13 08:34:15  reinelt
 *
 * corrected a off-by-one bug with sensors
 *
 * Revision 1.18  2001/03/08 15:25:38  ltoetsch
 * improved exec
 *
 * Revision 1.17  2001/03/08 08:39:55  reinelt
 *
 * fixed two typos
 *
 * Revision 1.16  2001/03/07 18:10:21  ltoetsch
 * added e(x)ec commands
 *
 * Revision 1.15  2001/03/02 10:18:03  ltoetsch
 * added /proc/apm battery stat
 *
 * Revision 1.14  2001/02/19 00:15:46  reinelt
 *
 * integrated mail and seti client
 * major rewrite of parser and tokenizer to support double-byte tokens
 *
 * Revision 1.13  2001/02/16 14:15:11  reinelt
 *
 * fixed type in processor.c
 * GPO documentation update from Carsten
 *
 * Revision 1.12  2001/02/16 08:23:09  reinelt
 *
 * new token 'ic' (ISDN connected) by Carsten Nau <[e-mail]>
 *
 * Revision 1.11  2001/02/14 07:40:16  reinelt
 *
 * first (incomplete) GPO implementation
 *
 * Revision 1.10  2001/02/13 09:00:13  reinelt
 *
 * prepared framework for GPO's (general purpose outputs)
 *
 * Revision 1.9  2001/02/11 23:34:07  reinelt
 *
 * fixed a small bug where the throughput of an offline ISDN connection 
 * is displayed as '----', but the online value is 5 chars long. 
 * corrected to ' ----'. Thanks to Carsten Nau <[e-mail]> 
 *
 * Revision 1.8  2000/08/10 09:44:09  reinelt
 *
 * new debugging scheme: error(), info(), debug()
 * uses syslog if in daemon mode
 *
 * Revision 1.7  2000/07/31 10:43:44  reinelt
 *
 * some changes to support kernel-2.4 (different layout of various files in /proc)
 *
 * Revision 1.6  2000/05/21 06:20:35  reinelt
 *
 * added ppp throughput
 * token is '%t[iomt]' at the moment, but this will change in the near future
 *
 * Revision 1.5  2000/04/15 11:56:35  reinelt
 *
 * more debug messages
 *
 * Revision 1.4  2000/04/15 11:13:54  reinelt
 *
 * added '-d' (debugging) switch
 * added several debugging messages
 * removed config entry 'Delay' for HD44780 driver
 * delay loop for HD44780 will be calibrated automatically
 *
 * Revision 1.3  2000/04/01 16:22:38  reinelt
 *
 * bug that caused a segfault in processor.c fixed (thanks to herp)
 *
 * Revision 1.2  2000/03/23 07:24:48  reinelt
 *
 * PPM driver up and running (but slow!)
 *
 * Revision 1.1  2000/03/22 07:33:50  reinelt
 *
 * FAQ added
 * new modules 'processor.c' contains all data processing
 *
 */

/* 
 * exported functions:
 *
 * void process_init (void);
 *   does all necessary initializations
 *
 * void process ();
 *   processes a whole screen
 *
 */


#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <sys/time.h>

#include "debug.h"
#include "cfg.h"
#include "system.h"
#include "isdn.h"
#include "parser.h"
#include "display.h"
#include "bar.h"
#include "processor.h"
#include "mail.h"
#include "battery.h"
#include "dvb.h"
#include "seti.h"
#include "exec.h"

#define ROWS 64
#define ICONS 8
#define GPOS 16

static char *row[ROWS+1];
static int   gpo[GPOS+1];
static int   rows, cols, xres, yres, supported_bars, icons, gpos;
static int   lines, scroll, turn;
static int   token_usage[256]={0,};

static struct { int total, used, free, shared, buffer, cache, avail; } ram;
static struct { double load1, load2, load3, overload; } load;
static struct { double user, nice, system, idle; } busy;
static struct { int read, write, total, max, peak; } disk;
static struct { int rx, tx, total, max, peak, bytes; } net;
static struct { int usage, in, out, total, max, peak; } isdn;
static struct { int rx, tx, total, max, peak; } ppp;
static struct { int perc, stat; double dur; } batt;
static struct { double perc, cput; } seti;
static struct { int num, unseen;} mail[MAILBOXES+1];
static struct { double val, min, max; } sensor[SENSORS+1];
static struct { double strength, snr; } dvb;

extern int tick, tack;
static int tick_text, tick_bar, tick_icon, tick_gpo;


static double query (int token)
{
  switch (token&255) {
    
  case T_MEM_TOTAL:
    return ram.total;
  case T_MEM_USED:
    return ram.used;
  case T_MEM_FREE:
    return ram.free;
  case T_MEM_SHARED:
    return ram.shared;
  case T_MEM_BUFFER:
    return ram.buffer;
  case T_MEM_CACHE:
    return ram.cache;
  case T_MEM_AVAIL:
    return ram.avail;

  case T_LOAD_1:
    return load.load1;
  case T_LOAD_2:
    return load.load2;
  case T_LOAD_3:
    return load.load3;
    
  case T_CPU_USER:
    return busy.user;
  case T_CPU_NICE:
    return busy.nice;
  case T_CPU_SYSTEM:
    return busy.system;
  case T_CPU_BUSY:
    return 1.0-busy.idle;
  case T_CPU_IDLE:
    return busy.idle;
    
  case T_DISK_READ:
    return disk.read;
  case T_DISK_WRITE:
    return disk.write;
  case T_DISK_TOTAL:
    return disk.total;
  case T_DISK_MAX:
    return disk.max;
    
  case T_ETH_RX:
    return net.rx;
  case T_ETH_TX:
    return net.tx;
  case T_ETH_TOTAL:
    return net.total;
  case T_ETH_MAX:
    return net.max;
    
  case T_ISDN_IN:
    return isdn.in;
  case T_ISDN_OUT:
    return isdn.out;
  case T_ISDN_TOTAL:
    return isdn.total;
  case T_ISDN_MAX:
    return isdn.max;
  case T_ISDN_USED:
    return isdn.usage;

  case T_PPP_RX:
    return ppp.rx;
  case T_PPP_TX:
    return ppp.tx;
  case T_PPP_TOTAL:
    return ppp.total;
  case T_PPP_MAX:
    return ppp.max;
    
  case T_SETI_PRC:
    return seti.perc;
  case T_SETI_CPU:
    return seti.cput;
    
  case T_BATT_PERC:
    return batt.perc;
  case T_BATT_STAT:
    return batt.stat;
  case T_BATT_DUR:
    return batt.dur;
    
  case T_DVB_STRENGTH:
    return dvb.strength;
  case T_DVB_SNR:
    return dvb.snr;

  case T_MAIL:
    return mail[(token>>8)-'0'].num;

  case T_MAIL_UNSEEN:
    return mail[(token>>8)-'0'].unseen;

  case T_SENSOR:
    return sensor[(token>>8)-'0'].val;

  case T_EXEC:
    return exec[(token>>8)-'0'].val;

  }
  return 0.0;
}


/* return a value 0..1 */
static double query_bar (int token)
{
  int i;
  double value=query(token);
  
  switch (token & 255) {

  case T_MEM_TOTAL:
  case T_MEM_USED:
  case T_MEM_FREE:
  case T_MEM_SHARED:
  case T_MEM_BUFFER:
  case T_MEM_CACHE:
  case T_MEM_AVAIL:
    return value/ram.total;

  case T_LOAD_1:
  case T_LOAD_2:
  case T_LOAD_3:
    return value/load.overload;
    
  case T_DISK_READ:
  case T_DISK_WRITE:
  case T_DISK_MAX:
    return value/disk.peak;
  case T_DISK_TOTAL:
    return value/disk.peak/2.0;
    
  case T_ETH_RX:
  case T_ETH_TX:
  case T_ETH_MAX:
    return value/net.peak;
  case T_ETH_TOTAL:
    return value/net.peak/2.0;
    
  case T_ISDN_IN:
  case T_ISDN_OUT:
  case T_ISDN_MAX:
    return value/isdn.peak;
  case T_ISDN_TOTAL:
    return value/isdn.peak/2.0;

  case T_PPP_RX:
  case T_PPP_TX:
  case T_PPP_MAX:
    return value/ppp.peak;
  case T_PPP_TOTAL:
    return value/ppp.peak/2.0;
    
  case T_SETI_PRC:
    return value;
    
  case T_BATT_PERC:
    {
      static int alarm;
      alarm=((alarm+1) % 3);
      if(value < atoi(cfg_get("battwarning","10")) && !alarm) /* flash bar */
	value = 0;
      return value/100;
    }

  case T_SENSOR:
    i=(token>>8)-'0';
    return (value-sensor[i].min)/(sensor[i].max-sensor[i].min);
  }
  return value;
}


static void print_token (int token, char **p, char *start)
{
  double val;
  int i;
  
  switch (token & 255) {

  case T_PERCENT:
    *(*p)++='%';
    break;

  case T_DOLLAR:
    *(*p)++='$';
    break;

  case T_OS:
    *p+=sprintf (*p, "%s", System());
    break;

  case T_RELEASE:
    *p+=sprintf (*p, "%s", Release());
    break;

  case T_CPU:
    *p+=sprintf (*p, "%s", Processor());
    break;

  case T_RAM:
    *p+=sprintf (*p, "%d", Memory());
    break;

  case T_OVERLOAD:
    *(*p)++=load.load1>load.overload?'!':' ';
    break;

  case T_MEM_TOTAL:
  case T_MEM_USED:
  case T_MEM_FREE:
  case T_MEM_SHARED:
  case T_MEM_BUFFER:
  case T_MEM_CACHE:
  case T_MEM_AVAIL:
    *p+=sprintf (*p, "%6.0f", query(token));
    break;

  case T_LOAD_1: