Le 09/01/2020 à 13:59, Filip Bozuta a écrit :
> 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 <filip.boz...@rt-rk.com>
> ---
> 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)
>
Reviewed-by: Laurent Vivier <laur...@vivier.eu>
