X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fstm%2Fao_timer.c;h=d00deffab2161b80e0333f6524567deefdb87052;hb=338372b97d441c30d2a23df540163a66a7f8d8c0;hp=9e9436cfa685dae451ae27ff59b8c9af6b32be1c;hpb=c6e57291d91f1f6c4de5c54a5cfd3eef66d9f830;p=fw%2Faltos

diff --git a/src/stm/ao_timer.c b/src/stm/ao_timer.c
index 9e9436cf..d00deffa 100644
--- a/src/stm/ao_timer.c
+++ b/src/stm/ao_timer.c
@@ -36,6 +36,23 @@ ao_time(void)
 {
 	return ao_tick_count;
 }
+
+uint64_t
+ao_time_ns(void)
+{
+	AO_TICK_TYPE	before, after;
+	uint32_t	cvr;
+
+	do {
+		before = ao_tick_count;
+		cvr = stm_systick.cvr;
+		after = ao_tick_count;
+	} while (before != after);
+
+	return (uint64_t) after * (1000000000ULL / AO_HERTZ) +
+		(uint64_t) cvr * (1000000000ULL / AO_SYSTICK);
+}
+
 #endif
 
 #if AO_DATA_ALL