fd-raw-input: added hack: getenv(EXPECTED_RATE)

0a5250ae · Alessandro Rubini · 359b24c8 · 0a5250ae
Commit 0a5250ae authored May 05, 2012 by Alessandro Rubini
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Showing with 16 additions and 1 deletion

fd-raw-input.c tools/fd-raw-input.c +16 -1

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--- a/tools/fd-raw-input.c
+++ b/tools/fd-raw-input.c
@@ -27,12 +27,15 @@

 enum {MODE_HEX, MODE_FLOAT, MODE_PICO};

+int expect;
+
 void event(uint32_t *a, char *name, int *seq, int mode, long double *t1,
 	uint64_t *p1)
 {
 	int sequence = a[FD_ATTR_TDC_SEQ];
 	long double t2;
 	int64_t p2, delta;
+	static int64_t guess;

 	if (*seq != -1) {
 		if (sequence  != ((*seq + 1) & 0xffff)) {
@@ -74,10 +77,19 @@ void event(uint32_t *a, char *name, int *seq, int mode, long double *t1,
 		if (delta < 0)
 			delta += 1000LL * 1000 * 1000 * 1000;
 		if (*p1) {
-			printf("%012lli - delta %012lli\n", p2, delta);
+			printf("%012lli - delta %012lli", p2, delta);
+			if (expect) {
+				guess += expect;
+				if (guess > 1000LL * 1000 * 1000 * 1000)
+					guess -= 1000LL * 1000 * 1000 * 1000;
+				printf(" - error %6i", (int)(p2 - guess));
+			}
+			putchar('\n');
 		}
 		else {
 			printf("%012lli\n", p2);
+			if (expect)
+				guess = p2;
 		}
 		*p1 = p2;
 		break;
@@ -98,6 +110,9 @@ int main(int argc, char **argv)
 	uint64_t p1[MAXFD] = {0LL,};
 	uint32_t *attrs;

+	if (getenv("EXPECTED_RATE"))
+		expect = atoi(getenv("EXPECTED_RATE"));
+
 	if (argc > 1 && !strcmp(argv[1], "-f")) {
 		mode = MODE_FLOAT;
 		argv[1] = argv[0];