Rename RISC-V_RV32_SiFive_HiFive1-FreedomStudio directory to RISC-V_RV32_SiFive_HiFiv...

[freertos] / FreeRTOS / Demo / RISC-V_RV32_SiFive_HiFive1-RevB_FreedomStudio / freedom-metal / gloss / sys_gettimeofday.c

diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1-RevB_FreedomStudio/freedom-metal/gloss/sys_gettimeofday.c b/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1-RevB_FreedomStudio/freedom-metal/gloss/sys_gettimeofday.c
new file mode 100644 (file)
index 0000000..409b2ce
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1-RevB_FreedomStudio/freedom-metal/gloss/sys_gettimeofday.c
@@ -0,0 +1,21 @@
+#include <errno.h>
+#include <metal/timer.h>
+#include <sys/time.h>
+
+int
+_gettimeofday(struct timeval *tp, void *tzp)
+{
+    int rv;
+    unsigned long long mcc, timebase;
+    rv = metal_timer_get_cyclecount(0, &mcc);
+    if (rv != 0) {
+        return -1;
+    }
+    rv = metal_timer_get_timebase_frequency(0, &timebase);
+    if (rv != 0) {
+        return -1;
+    }
+    tp->tv_sec = mcc / timebase;
+    tp->tv_usec = mcc % timebase * 1000000 / timebase;
+    return 0;
+}