Update RISCC-V-RV32-SiFive_HiFive1_FreedomStudio project to latest tools and metal...

[freertos] / FreeRTOS / Demo / RISC-V_RV32_SiFive_HiFive1_FreedomStudio / freedom-metal / src / time.c

diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/src/time.c b/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/src/time.c
new file mode 100644 (file)
index 0000000..529f8bd
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/src/time.c
@@ -0,0 +1,30 @@
+/* Copyright 2019 SiFive, Inc */
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#include <metal/time.h>
+#include <metal/timer.h>
+
+int metal_gettimeofday(struct timeval *tp, void *tzp)
+{
+    int rv;
+    unsigned long long mcc, timebase;
+    if ((rv = metal_timer_get_cyclecount(0, &mcc))) {
+        return -1;
+    }
+    if ((rv = metal_timer_get_timebase_frequency(0, &timebase))) {
+        return -1;
+    }
+    tp->tv_sec = mcc / timebase;
+    tp->tv_usec = mcc % timebase * 1000000 / timebase;
+    return 0;
+}
+
+time_t metal_time (void)
+{
+    struct timeval now;
+
+    if (metal_gettimeofday(&now, NULL) < 0)
+      now.tv_sec = (time_t) -1;
+
+  return now.tv_sec;
+}