spec_time function copied from ppsi

Note: spec_time function is obsolete; this patch should be reverted sooner or later.

spec_time function copied from ppsi
Note: spec_time function is obsolete; this patch should be reverted sooner or later.
9d082540 · Aurelio Colosimo · Alessandro Rubini · c62f4eee · 9d082540 · 9d082540
Commit 9d082540 authored Oct 19, 2012 by Aurelio Colosimo Committed by Alessandro Rubini Dec 12, 2012
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syscon.c dev/syscon.c +20 -0

syscon.h include/syscon.h +2 -0

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--- a/dev/syscon.c
+++ b/dev/syscon.c
@@ -44,3 +44,23 @@ void timer_delay(uint32_t how_long)

 	while (t_start + how_long > timer_get_tics()) ;
 }
+
+/* return a monotonic seconds count from the counter above;
+ * FIXME horrible obsolete code, still used by ppsi */
+int spec_time(void)
+{
+	static uint32_t prev, secs;
+	static int rest; /* millisecs */
+	uint32_t tics = timer_get_tics();
+
+	if (!prev) {
+		prev = tics;
+		secs = 1; /* Start from a small number! */
+		return secs;
+	}
+	rest += tics - prev;
+	secs += rest / 1000;
+	rest %= 1000;
+	prev = tics;
+	return secs;
+}
--- a/include/syscon.h
+++ b/include/syscon.h
@@ -60,4 +60,6 @@ static inline int sysc_get_memsize()
 	return (SYSC_HWFR_MEMSIZE_R(syscon->HWFR) + 1) * 16;
 }

+int spec_time(void);
+
 #endif