From 11ca1660069bbeaba478a8c8be5dbf2a3c3fb60c Mon Sep 17 00:00:00 2001
From: GuEe-GUI <2991707448@qq.com>
Date: Sun, 14 Jun 2026 11:37:08 +0800
Subject: [dm][ptp] support Precision Time Protocol (PTP) IEEE 1588 clock

Signed-off-by: GuEe-GUI <2991707448@qq.com>
---
 components/libc/compilers/common/include/sys/time.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'components/libc/compilers/common/include')

diff --git a/components/libc/compilers/common/include/sys/time.h b/components/libc/compilers/common/include/sys/time.h
index 817fe78676..8804433eeb 100644
--- a/components/libc/compilers/common/include/sys/time.h
+++ b/components/libc/compilers/common/include/sys/time.h
@@ -198,6 +198,14 @@ int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
 #define CLOCK_TAI 11  // newlib says they don't have this definition,  make the compiler happy
 #endif /* CLOCK_TAI */
 
+#ifdef RT_USING_PTP
+#ifndef CLOCKFD
+#define CLOCKFD 3
+#endif /* CLOCKFD */
+#define FD_TO_CLOCKID(fd)       ((clockid_t)((~(clockid_t)(fd) << 3) | CLOCKFD))
+#define CLOCKID_TO_FD(clk)      ((unsigned int)(~((unsigned int)(clk) >> 3)))
+#endif /* RT_USING_PTP */
+
 #endif /* defined(RT_USING_POSIX_CLOCK) || defined (RT_USING_POSIX_TIMER) */
 
 #ifdef RT_USING_POSIX_CLOCK
-- 
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