FreeCalypso > hg > fc-rfcal-tools

comparison cmu200/cableconf.c @ 68:3ec82dc1dbda

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fc-cmu200d: implemented reading and parsing of cable config files (-c arg)
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 14 Jul 2017 04:34:15 +0000
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67:3f92d88fbb1c 68:3ec82dc1dbda
1 /*
2 * The code that reads and parses cable config files lives here.
3 */
4
5 #include <sys/param.h>
6 #include <ctype.h>
7 #include <stdio.h>
8 #include <stdlib.h>
9 #include <string.h>
10 #include <strings.h>
11 #include "band.h"
12
13 char cableconf_directory[] = "/opt/freecalypso/rfcal/cableconf/";
14
15 extern struct band supported_bands[];
16 extern int cmu200_rf_port;
17
18 static void
19 cable_loss_line(cp, filename_for_errs, lineno)
20 char *cp, *filename_for_errs;
21 {
22 char *np;
23 struct band *band;
24 int dir;
25 unsigned num;
26
27 while (isspace(*cp))
28 cp++;
29 if (!isdigit(*cp)) {
30 inv: fprintf(stderr, "%s line %d: invalid syntax for cable-loss\n",
31 filename_for_errs, lineno);
32 exit(1);
33 }
34 for (np = cp; isdigit(*cp); cp++)
35 ;
36 if (cp[0] != 'd' && cp[0] != 'u' || cp[1] != 'l')
37 goto inv;
38 dir = *cp;
39 *cp = '\0';
40 cp += 2;
41 for (band = supported_bands; band->name; band++)
42 if (!strcmp(band->name, np))
43 break;
44 if (!band->name) {
45 fprintf(stderr, "%s line %d: frequency band \"%s\" not known\n",
46 filename_for_errs, lineno, np);
47 exit(1);
48 }
49 while (isspace(*cp))
50 cp++;
51 if (!isdigit(*cp))
52 goto inv;
53 for (np = cp; isdigit(*cp); cp++)
54 ;
55 if (cp[0] != '.' || !isdigit(cp[1]))
56 goto inv;
57 num = atoi(np) * 10 + (cp[1] - '0');
58 cp += 2;
59 while (isspace(*cp))
60 cp++;
61 if (*cp != '\0' && *cp != '#')
62 goto inv;
63 switch (dir) {
64 case 'd':
65 band->dl_cable_loss = num;
66 break;
67 case 'u':
68 band->ul_cable_loss = num;
69 break;
70 }
71 }
72
73 static void
74 rf_port_line(cp, filename_for_errs, lineno)
75 char *cp, *filename_for_errs;
76 {
77 while (isspace(*cp))
78 cp++;
79 if (!isdigit(*cp)) {
80 inv: fprintf(stderr, "%s line %d: invalid syntax for rf-port\n",
81 filename_for_errs, lineno);
82 exit(1);
83 }
84 if (cp[0] != '1' && cp[0] != '2' || isdigit(cp[1])) {
85 fprintf(stderr, "%s line %d: invalid RF port number\n",
86 filename_for_errs, lineno);
87 exit(1);
88 }
89 cmu200_rf_port = *cp++ - '0';
90 while (isspace(*cp))
91 cp++;
92 if (*cp != '\0' && *cp != '#')
93 goto inv;
94 }
95
96 static void
97 process_line(linebuf, filename_for_errs, lineno)
98 char *linebuf, *filename_for_errs;
99 {
100 char *cp, *np;
101
102 for (cp = linebuf; isspace(*cp); cp++)
103 ;
104 if (*cp == '\0' || *cp == '#')
105 return;
106 for (np = cp; *cp && !isspace(*cp); cp++)
107 ;
108 if (*cp)
109 *cp++ = '\0';
110 if (!strcmp(np, "cable-loss"))
111 cable_loss_line(cp, filename_for_errs, lineno);
112 else if (!strcmp(np, "rf-port"))
113 rf_port_line(cp, filename_for_errs, lineno);
114 else {
115 fprintf(stderr, "%s line %d: unknown keyword \"%s\"\n",
116 filename_for_errs, lineno, np);
117 exit(1);
118 }
119 }
120
121 read_cable_conf_file(cable_conf_name)
122 char *cable_conf_name;
123 {
124 char pathname[MAXPATHLEN];
125 FILE *inf;
126 int lineno;
127 char linebuf[512];
128
129 strcpy(pathname, cableconf_directory);
130 strcat(pathname, cable_conf_name);
131 inf = fopen(pathname, "r");
132 if (!inf) {
133 perror(pathname);
134 exit(1);
135 }
136 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++)
137 process_line(linebuf, pathname, lineno);
138 fclose(inf);
139 }