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[PATCH v7 01/13] linux-user: Add support for enabling/disabling RTC feat
From: |
Filip Bozuta |
Subject: |
[PATCH v7 01/13] linux-user: Add support for enabling/disabling RTC features using ioctls |
Date: |
Wed, 15 Jan 2020 20:11:51 +0100 |
This patch implements functionalities of following ioctls:
RTC_AIE_ON, RTC_AIE_OFF - Alarm interrupt enabling on/off
Enable or disable the alarm interrupt, for RTCs that support
alarms. The third ioctl's argument is ignored.
RTC_UIE_ON, RTC_UIE_OFF - Update interrupt enabling on/off
Enable or disable the interrupt on every clock update, for
RTCs that support this once-per-second interrupt. The third
ioctl's argument is ignored.
RTC_PIE_ON, RTC_PIE_OFF - Periodic interrupt enabling on/off
Enable or disable the periodic interrupt, for RTCs that sup‐
port these periodic interrupts. The third ioctl's argument
is ignored. Only a privileged process (i.e., one having the
CAP_SYS_RESOURCE capability) can enable the periodic interrupt
if the frequency is currently set above the value specified in
/proc/sys/dev/rtc/max-user-freq.
RTC_WIE_ON, RTC_WIE_OFF - Watchdog interrupt enabling on/off
Enable or disable the Watchdog interrupt, for RTCs that sup-
port this Watchdog interrupt. The third ioctl's argument is
ignored.
Implementation notes:
Since all of involved ioctls have NULL as their third argument,
their implementation was straightforward.
The line '#include <linux/rtc.h>' was added to recognize
preprocessor definitions for these ioctls. This needs to be
done only once in this series of commits. Also, the content
of this file (with respect to ioctl definitions) remained
unchanged for a long time, therefore there is no need to
worry about supporting older Linux kernel version.
Signed-off-by: Filip Bozuta <address@hidden>
---
linux-user/ioctls.h | 9 +++++++++
linux-user/syscall.c | 1 +
linux-user/syscall_defs.h | 10 ++++++++++
3 files changed, 20 insertions(+)
diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index c6b9d6a..97741c7 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -69,6 +69,15 @@
IOCTL(KDSETLED, 0, TYPE_INT)
IOCTL_SPECIAL(KDSIGACCEPT, 0, do_ioctl_kdsigaccept, TYPE_INT)
+ IOCTL(RTC_AIE_ON, 0, TYPE_NULL)
+ IOCTL(RTC_AIE_OFF, 0, TYPE_NULL)
+ IOCTL(RTC_UIE_ON, 0, TYPE_NULL)
+ IOCTL(RTC_UIE_OFF, 0, TYPE_NULL)
+ IOCTL(RTC_PIE_ON, 0, TYPE_NULL)
+ IOCTL(RTC_PIE_OFF, 0, TYPE_NULL)
+ IOCTL(RTC_WIE_ON, 0, TYPE_NULL)
+ IOCTL(RTC_WIE_OFF, 0, TYPE_NULL)
+
IOCTL(BLKROSET, IOC_W, MK_PTR(TYPE_INT))
IOCTL(BLKROGET, IOC_R, MK_PTR(TYPE_INT))
IOCTL(BLKRRPART, 0, TYPE_NULL)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ce399a5..74c3c08 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -107,6 +107,7 @@
#include <netpacket/packet.h>
#include <linux/netlink.h>
#include <linux/if_alg.h>
+#include <linux/rtc.h>
#include "linux_loop.h"
#include "uname.h"
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 98c2119..f91579a 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -763,6 +763,16 @@ struct target_pollfd {
#define TARGET_KDSETLED 0x4B32 /* set led state [lights, not flags] */
#define TARGET_KDSIGACCEPT 0x4B4E
+/* real time clock ioctls */
+#define TARGET_RTC_AIE_ON TARGET_IO('p', 0x01)
+#define TARGET_RTC_AIE_OFF TARGET_IO('p', 0x02)
+#define TARGET_RTC_UIE_ON TARGET_IO('p', 0x03)
+#define TARGET_RTC_UIE_OFF TARGET_IO('p', 0x04)
+#define TARGET_RTC_PIE_ON TARGET_IO('p', 0x05)
+#define TARGET_RTC_PIE_OFF TARGET_IO('p', 0x06)
+#define TARGET_RTC_WIE_ON TARGET_IO('p', 0x0f)
+#define TARGET_RTC_WIE_OFF TARGET_IO('p', 0x10)
+
#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SH4) ||
\
defined(TARGET_XTENSA)
#define TARGET_FIOGETOWN TARGET_IOR('f', 123, int)
--
2.7.4
- [PATCH v7 00/13] linux-user: Add support for real time clock and, Filip Bozuta, 2020/01/15
- [PATCH v7 08/13] linux-user: Add support for setting alsa timer enhanced read using ioctl, Filip Bozuta, 2020/01/15
- [PATCH v7 02/13] linux-user: Add support for getting/setting RTC time and alarm using ioctls, Filip Bozuta, 2020/01/15
- [PATCH v7 01/13] linux-user: Add support for enabling/disabling RTC features using ioctls,
Filip Bozuta <=
- [PATCH v7 05/13] linux-user: Add support for getting/setting RTC PLL correction using ioctls, Filip Bozuta, 2020/01/15
- [PATCH v7 04/13] linux-user: Add support for getting/setting RTC wakeup alarm using ioctls, Filip Bozuta, 2020/01/15
- [PATCH v7 03/13] linux-user: Add support for getting/setting RTC periodic interrupt and epoch using ioctls, Filip Bozuta, 2020/01/15
- [PATCH v7 06/13] linux-user: Add support for read/clear RTC voltage low detector using ioctls, Filip Bozuta, 2020/01/15
- [PATCH v7 07/13] linux-user: Add support for getting alsa timer version and id, Filip Bozuta, 2020/01/15
- [PATCH v7 09/13] linux-user: Add support for getting/setting specified alsa timer parameters using ioctls, Filip Bozuta, 2020/01/15
- [PATCH v7 12/13] linux-user: Add support for selected alsa timer instructions using ioctls, Filip Bozuta, 2020/01/15
- [PATCH v7 10/13] linux-user: Add support for selecting alsa timer using ioctl, Filip Bozuta, 2020/01/15
- [PATCH v7 13/13] linux-user: Add support for TYPE_LONG and TYPE_ULONG in do_ioctl(), Filip Bozuta, 2020/01/15