1 /*- 2 * Copyright (c) 1998-2003 Poul-Henning Kamp 3 * 4 * Please see src/share/examples/etc/bsd-style-copyright. 5 * 6 */ 7 8 #include <sys/cdefs.h> 9 __FBSDID("$FreeBSD$"); 10 11 #include <stdio.h> 12 #include <stdint.h> 13 #include <stdlib.h> 14 #include <unistd.h> 15 #include <fcntl.h> 16 #include <err.h> 17 #include <sys/timepps.h> 18 19 static int aflag, Aflag, cflag, Cflag, eflag, uflag, vflag; 20 21 static void 22 Chew(struct timespec *tsa, struct timespec *tsc, unsigned sa, unsigned sc) 23 { 24 printf("%jd .%09ld %u", (intmax_t)tsa->tv_sec, tsa->tv_nsec, sa); 25 printf(" %jd .%09ld %u\n", (intmax_t)tsc->tv_sec, tsc->tv_nsec, sc); 26 if (uflag) 27 fflush(stdout); 28 } 29 30 int 31 main(int argc, char **argv) 32 { 33 int fd; 34 pps_info_t pi; 35 pps_params_t pp; 36 pps_handle_t ph; 37 int i, mode; 38 u_int olda, oldc; 39 struct timespec to; 40 41 while ((i = getopt(argc, argv, "aAbBcCeuv")) != -1) { 42 switch (i) { 43 case 'a': aflag = 1; break; 44 case 'A': Aflag = 1; break; 45 case 'b': aflag = 1; cflag = 1; break; 46 case 'B': Aflag = 1; Cflag = 1; break; 47 case 'c': cflag = 1; break; 48 case 'C': Cflag = 1; break; 49 case 'e': eflag = 1; break; 50 case 'u': uflag = 1; break; 51 case 'v': vflag = 1; break; 52 case '?': 53 default: 54 fprintf(stderr, 55 "Usage: ppsapitest [-aAcC] device\n"); 56 exit (1); 57 } 58 } 59 argc -= optind; 60 argv += optind; 61 if (argc > 0) { 62 fd = open(argv[0], O_RDONLY); 63 if (fd < 0) 64 err(1, argv[0]); 65 } else { 66 fd = 0; 67 } 68 i = time_pps_create(fd, &ph); 69 if (i < 0) 70 err(1, "time_pps_create"); 71 72 i = time_pps_getcap(ph, &mode); 73 if (i < 0) 74 err(1, "time_pps_getcap"); 75 if (vflag) { 76 fprintf(stderr, "Supported modebits:"); 77 if (mode & PPS_CAPTUREASSERT) 78 fprintf(stderr, " CAPTUREASSERT"); 79 if (mode & PPS_CAPTURECLEAR) 80 fprintf(stderr, " CAPTURECLEAR"); 81 if (mode & PPS_OFFSETASSERT) 82 fprintf(stderr, " OFFSETASSERT"); 83 if (mode & PPS_OFFSETCLEAR) 84 fprintf(stderr, " OFFSETCLEAR"); 85 if (mode & PPS_ECHOASSERT) 86 fprintf(stderr, " ECHOASSERT"); 87 if (mode & PPS_ECHOCLEAR) 88 fprintf(stderr, " ECHOCLEAR"); 89 if (mode & PPS_CANWAIT) 90 fprintf(stderr, " CANWAIT"); 91 if (mode & PPS_CANPOLL) 92 fprintf(stderr, " CANPOLL"); 93 if (mode & PPS_TSFMT_TSPEC) 94 fprintf(stderr, " TSPEC"); 95 if (mode & PPS_TSFMT_NTPFP) 96 fprintf(stderr, " NTPFP"); 97 fprintf(stderr, "\n"); 98 } 99 100 if (!aflag && !cflag) { 101 if (mode & PPS_CAPTUREASSERT) 102 aflag = 1; 103 if (mode & PPS_CAPTURECLEAR) 104 cflag = 1; 105 } 106 if (!Aflag && !Cflag) { 107 Aflag = aflag; 108 Cflag = cflag; 109 } 110 111 if (Cflag && !(mode & PPS_CAPTURECLEAR)) 112 errx(1, "-C but cannot capture on clear flank"); 113 114 if (Aflag && !(mode & PPS_CAPTUREASSERT)) 115 errx(1, "-A but cannot capture on assert flank"); 116 117 i = time_pps_getparams(ph, &pp); 118 if (i < 0) 119 err(1, "time_pps_getparams():"); 120 121 if (aflag) 122 pp.mode |= PPS_CAPTUREASSERT; 123 if (cflag) 124 pp.mode |= PPS_CAPTURECLEAR; 125 126 if (eflag & aflag) 127 pp.mode |= PPS_ECHOASSERT; 128 129 if (eflag & cflag) 130 pp.mode |= PPS_ECHOCLEAR; 131 132 if (!(pp.mode & PPS_TSFMT_TSPEC)) 133 pp.mode |= PPS_TSFMT_TSPEC; 134 135 i = time_pps_setparams(ph, &pp); 136 if (i < 0) { 137 err(1, "time_pps_setparams(mode %x):", pp.mode); 138 } 139 140 /* 141 * Pick up first event outside the loop in order to not 142 * get something ancient into the outfile. 143 */ 144 to.tv_nsec = 0; 145 to.tv_sec = 0; 146 i = time_pps_fetch(ph, PPS_TSFMT_TSPEC, &pi, &to); 147 if (i < 0) 148 err(1, "time_pps_fetch()"); 149 olda = pi.assert_sequence; 150 oldc = pi.clear_sequence; 151 152 while (1) { 153 to.tv_nsec = 0; 154 to.tv_sec = 0; 155 i = time_pps_fetch(ph, PPS_TSFMT_TSPEC, &pi, &to); 156 if (i < 0) 157 err(1, "time_pps_fetch()"); 158 if (oldc != pi.clear_sequence && Cflag) 159 ; 160 else if (olda != pi.assert_sequence && Aflag) 161 ; 162 else { 163 usleep(10000); 164 continue; 165 } 166 Chew(&pi.assert_timestamp, &pi.clear_timestamp, 167 pi.assert_sequence, pi.clear_sequence); 168 olda = pi.assert_sequence; 169 oldc = pi.clear_sequence; 170 } 171 return(0); 172 } 173