From 05e59e5fb0064c97a1c10921ecd549f2d4a58565 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:14:40 +0000
Subject: [PATCH] add REDIRECT
---
kernel/include/uapi/linux/rtc.h | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/kernel/include/uapi/linux/rtc.h b/kernel/include/uapi/linux/rtc.h
index 2ad1788..fa9aff9 100644
--- a/kernel/include/uapi/linux/rtc.h
+++ b/kernel/include/uapi/linux/rtc.h
@@ -12,6 +12,9 @@
#ifndef _UAPI_LINUX_RTC_H_
#define _UAPI_LINUX_RTC_H_
+#include <linux/const.h>
+#include <linux/ioctl.h>
+
/*
* The struct used to pass data via the following ioctl. Similar to the
* struct tm in <time.h>, but it needs to be here so that the kernel
@@ -92,7 +95,13 @@
#define RTC_PLL_GET _IOR('p', 0x11, struct rtc_pll_info) /* Get PLL correction */
#define RTC_PLL_SET _IOW('p', 0x12, struct rtc_pll_info) /* Set PLL correction */
-#define RTC_VL_READ _IOR('p', 0x13, int) /* Voltage low detector */
+#define RTC_VL_DATA_INVALID _BITUL(0) /* Voltage too low, RTC data is invalid */
+#define RTC_VL_BACKUP_LOW _BITUL(1) /* Backup voltage is low */
+#define RTC_VL_BACKUP_EMPTY _BITUL(2) /* Backup empty or not present */
+#define RTC_VL_ACCURACY_LOW _BITUL(3) /* Voltage is low, RTC accuracy is reduced */
+#define RTC_VL_BACKUP_SWITCH _BITUL(4) /* Backup switchover happened */
+
+#define RTC_VL_READ _IOR('p', 0x13, unsigned int) /* Voltage low detection */
#define RTC_VL_CLR _IO('p', 0x14) /* Clear voltage low information */
/* interrupt flags */
--
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