Delete ppstest. It never worked quite right, and now we can just use gpsd.

2 files changed, 0 insertions, 206 deletions

diff --git a/devtools/README b/devtools/README
index c475e54e..b12bfae2 100644
--- a/devtools/README
+++ b/devtools/README
@@ -63,11 +63,6 @@ list of failed regression tests, sorted by architecture.
 Extract pure NMEA from an emailed gpsd error log. The output can be fed 
 to gpsfake.
 
-== ppstest ==
-
-Simple program to check for PPS coming from a serial or USB device.
-Compile with "make ppstest".  See the header comment for instructions.
-
 == regress-builder ==
 
 This script runs an exhaustive test on combinations of compilation options, 
diff --git a/devtools/ppstest.c b/devtools/ppstest.c
deleted file mode 100644
index 3cba1900..00000000
--- a/devtools/ppstest.c
+++ /dev/null
@@ -1,201 +0,0 @@
-#include <termios.h>
-#include <sys/types.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <string.h>
-#include <stdlib.h>
-#include <getopt.h>
-
-/*
- * Test to see if TIOCMGET/TIOCMIWAIT can be made to work
- * Call with the serial device name argument,  and possibly -p or -w options
- *
- * Based on code fond here:
- * http://tech.groups.yahoo.com/group/ts-7000/message/803 
- */
-int main(int argc, char **argv) 
-{
-    int fd;
-    struct termios newtio;
-    unsigned char rx[132];
-    enum {dump, poll, wait} mode = dump;
-    int option;
-    char *device;
-
-    struct {char *name; int value;} pin_map[] = {
-	{"CTS", TIOCM_CTS},    /* Clear to send */
-	{"CAR", TIOCM_CAR},    /* Carrier detect */ 
-	{"DCD", TIOCM_CD},     /* Carrier detect (synonym - default) */ 
-	{"RI",  TIOCM_RI},     /* Ring Indicator */
-	{"RNG", TIOCM_RNG},    /* Ring Indicator (synonym) */
-	{"DSR", TIOCM_DSR},    /* Data Set Ready */
-	{NULL,  0}, 
-    }, *pp = &pin_map[2];
-
-    while ((option = getopt(argc, argv, "dl:pw")) != -1) {
-	switch (option) {
-	case 'd':            /* dump data from the TTY */
-	    mode = dump;
-	    break;
-	case 'p':            /* poll for PPS */
-	    mode = poll;
-	    break;
-	case 'w':            /* wait for PPS state change */ 
-	    mode = wait;
-	    break;
-	case 'l':            /* set the handshake line to use by name */
-	    for (pp = pin_map; pp->name != NULL; pp++)
-		if (strcmp(pp->name, optarg) == 0) {
-		    break;
-		}
-	    if (pp->name == NULL) {
-		(void)fprintf(stderr, 
-			      "Didn't recognize %s as a handshake.\n",
-			      optarg);
-		exit(1);
-	    }
-	    break;
-	case '?':
-	case 'h':
-	    (void)fprintf(stderr, "usage: ppstest [-p] [-w] [-l CTS|CAR|RI|RNG|DSR] device\n");
-	    exit(0);
-	}
-    }
-    device = argv[optind];
-
-    // try to open the serial port
-    fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY);
-    // how'd that go?
-    if (fd < 0) {
-	// not so good
-	perror("Unable to open device /dev/ttyAM0\n");
-	return 1;
-    }
-    fprintf(stderr, "Successfully opened serial device %s\n", device);
-
-    /* initialize the serial port */
-    memset(&newtio, '\0', sizeof(newtio));
-    newtio.c_cflag = CS8 | CREAD | CRTSCTS;
-    tcflush(fd, TCIOFLUSH);
-    tcsetattr(fd,TCSANOW,&newtio);
-
-    // Figure out which mode we are operating in, based on the command
-    // line argument.
-    //
-    // Operating Modes:
-    // mode = dump - Dump out serial data from port
-    // mode = wait - Use TIOCMIWAIT to detect changes on the line -
-    // mode = poll - Use TIOCMGET to detect changes on the line via polling
-
-    // Select operation based on mode
-    switch (mode) 
-    {
-    case dump:
-	// just dump out any characters arriving on the serial port
-	fprintf(stderr, "Testing Serial Interface. Dumping data from %s\n", device);
-	int readCnt;
-	while (1) {
-	    while (read(fd, rx, 132) > 0) {
-		rx[131] = 0;
-		fprintf(stderr, "%s", rx);
-	    }
-	    sleep(1);
-	}
-	break;
-
-    case wait:
-	// wait for transition to be reported via interrupt
-	(void)fprintf(stderr, 
-		      "Testing TIOCMIWAIT. Waiting for %s on %s\n", 
-		      pp->name, device);
-	while (ioctl(fd, TIOCMIWAIT, pp->value) == 0) {
-	    (void)fprintf(stderr, "%s Transition on %s\n", pp->name, device);
-	}
-	(void)fprintf(stderr, 
-		      "TIOCMIWAIT returns nonzero value on %s!\n", 
-		      device);
-	break;
-
-    case poll:
-	{
-	    struct timeval tv_jw;
-	    int state, lastState;
-	    double lastTime = 0;
-	    // for computing average length of a second, as derived from the
-	    // rising edge of the pulse
-	    double total = 0;
-	    int samples = 0;
-
-	    // poll selected line looking for transition; when found, report
-	    // time and various intervals between successive transitions.
-	    (void)fprintf(stderr, 
-			  "Testing TIOCMGET. Polling %s on %s\n", 
-			  pp->name, device);
-
-	    // get the current state of the line
-	    if (ioctl(fd, TIOCMGET, &lastState) != 0) {
-		(void)fprintf(stderr, "TIOCMGET fails on %s\n", device);
-		exit(1);
-	    }
-	    lastState = (int)((lastState & pp->value) != 0);
-
-	    // loop forever
-	    while (1) {
-		// get the value of the serial lines
-		if (ioctl(fd, TIOCMGET, &state) != 0) {
-		    // abort on error
-		    (void)fprintf(stderr, "TIOCMGET fails on %s\n", device);
-		    exit(1);
-		}
-		// recover line state
-		state = (int)((state & pp->value) != 0);
-
-		// Transition?
-		if (state != lastState) {
-		    // yes. Update the last state
-		    lastState = state;
-		    // Is this a leading (rising) edge?
-		    if (state == 1) {
-			// yes. let's call this the top of the second
-			// note the system time
-			(void)gettimeofday(&tv_jw,NULL);
-			// turn it into a double
-			double curTime = tv_jw.tv_sec + tv_jw.tv_usec/1.0e6;
-			// how long since the last transition?
-			double diff = curTime - lastTime;
-			// Update time of 'last' state transition
-			lastTime = curTime;
-			// diff should be (really close to) one second
-			// is diff within reason? (Sometimes transitions appear to be missed)
-			if (diff < 1.5) {
-			    // update for averaging
-			    total += diff;
-			    samples++;
-			    // report on the times associated with this transition
-			    (void)fprintf(stderr, 
-					  "%s transition on %s: %d: %.6f, %6f, %6f\n",
-					  pp->name, device, state, curTime, diff, total/samples);
-			}
-			else {
-			    (void)fprintf(stderr, 
-					  "%s transition on %s: %d: %.6f, %6f - wacky diff\n",
-					  pp->name, device, state, curTime, diff);
-			}
-		    }
-		}
-		// now sleep for a (very) little while
-		tv_jw.tv_sec = 0;
-		tv_jw.tv_usec = 1;
-		int retval_jw = select(1, NULL, NULL, NULL, &tv_jw);
-	    }
-	}
-    break;
-
-    default:
-	(void)fprintf(stderr, "Unknown mode\n");
-    }
-
-    (void)close(fd);
-    return 0;
-}