140 lines
2.5 KiB
C
140 lines
2.5 KiB
C
/*
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* This is a little helper function to parse options that
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* are common to most of the examples.
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*/
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#include <stdio.h>
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#include <comedilib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <getopt.h>
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#include <ctype.h>
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#include <malloc.h>
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#include <string.h>
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#include <stdlib.h>
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#include "examples.h"
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char *filename="/dev/comedi0";
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int verbose;
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int value=0;
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int subdevice=0;
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int channel=0;
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int aref=AREF_GROUND;
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int range=0;
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int n_chan=4;
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int n_scan=1000;
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double freq=1000.0;
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int parse_options(int argc, char *argv[])
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{
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int c;
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while (-1 != (c = getopt(argc, argv, "a:c:s:r:f:n:N:F:vdgom"))) {
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switch (c) {
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case 'f':
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filename = optarg;
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break;
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case 's':
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subdevice = strtoul(optarg,NULL,0);
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break;
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case 'c':
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channel = strtoul(optarg,NULL,0);
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break;
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case 'a':
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aref = strtoul(optarg,NULL,0);
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break;
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case 'r':
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range = strtoul(optarg,NULL,0);
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break;
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case 'n':
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n_chan = strtoul(optarg,NULL,0);
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break;
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case 'N':
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n_scan = strtoul(optarg,NULL,0);
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break;
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case 'F':
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freq = strtoul(optarg,NULL,0);
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break;
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case 'v':
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verbose = 1;
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break;
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case 'd':
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aref = AREF_DIFF;
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break;
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case 'g':
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aref = AREF_GROUND;
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break;
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case 'o':
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aref = AREF_OTHER;
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break;
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case 'm':
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aref = AREF_COMMON;
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break;
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default:
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printf("bad option\n");
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exit(1);
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}
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}
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if(optind < argc) {
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/* data value */
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sscanf(argv[optind++],"%d",&value);
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}
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return argc;
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}
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char *cmd_src(int src,char *buf)
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{
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buf[0]=0;
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if(src&TRIG_NONE)strcat(buf,"none|");
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if(src&TRIG_NOW)strcat(buf,"now|");
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if(src&TRIG_FOLLOW)strcat(buf, "follow|");
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if(src&TRIG_TIME)strcat(buf, "time|");
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if(src&TRIG_TIMER)strcat(buf, "timer|");
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if(src&TRIG_COUNT)strcat(buf, "count|");
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if(src&TRIG_EXT)strcat(buf, "ext|");
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if(src&TRIG_INT)strcat(buf, "int|");
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#ifdef TRIG_OTHER
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if(src&TRIG_OTHER)strcat(buf, "other|");
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#endif
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if(strlen(buf)==0){
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sprintf(buf,"unknown(0x%08x)",src);
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}else{
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buf[strlen(buf)-1]=0;
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}
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return buf;
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}
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void dump_cmd(FILE *out,comedi_cmd *cmd)
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{
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char buf[100];
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fprintf(out,"start: %-8s %d\n",
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cmd_src(cmd->start_src,buf),
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cmd->start_arg);
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fprintf(out,"scan_begin: %-8s %d\n",
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cmd_src(cmd->scan_begin_src,buf),
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cmd->scan_begin_arg);
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fprintf(out,"convert: %-8s %d\n",
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cmd_src(cmd->convert_src,buf),
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cmd->convert_arg);
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fprintf(out,"scan_end: %-8s %d\n",
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cmd_src(cmd->scan_end_src,buf),
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cmd->scan_end_arg);
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fprintf(out,"stop: %-8s %d\n",
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cmd_src(cmd->stop_src,buf),
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cmd->stop_arg);
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}
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