Le 15/01/2020 à 20:36, Filip Bozuta a écrit :
> This patch implements functionalities of following ioctls:
>
> RTC_VL_READ - Read voltage low detection information
>
> Read the voltage low for RTCs that support voltage low.
> The third ioctl's' argument points to an int in which
> the voltage low is returned.
>
> RTC_VL_CLR - Clear voltage low information
>
> Clear the information about voltage low for RTCs that
> support voltage low. The third ioctl(2) argument is
> ignored.
>
> Implementation notes:
>
> Since one ioctl has a pointer to 'int' as its third agrument,
> and another ioctl has NULL as its third argument, their
> implementation was straightforward.
>
> Reviewed-by: Laurent Vivier <laurent@vivier.eu>
> Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
> ---
> linux-user/ioctls.h | 2 ++
> linux-user/syscall_defs.h | 2 ++
> 2 files changed, 4 insertions(+)
>
> diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
> index 0a4e3f1..1f1f3e6 100644
> --- a/linux-user/ioctls.h
> +++ b/linux-user/ioctls.h
> @@ -89,6 +89,8 @@
> IOCTL(RTC_WKALM_SET, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtc_wkalrm)))
> IOCTL(RTC_PLL_GET, IOC_R, MK_PTR(MK_STRUCT(STRUCT_rtc_pll_info)))
> IOCTL(RTC_PLL_SET, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtc_pll_info)))
> + IOCTL(RTC_VL_READ, IOC_R, MK_PTR(TYPE_INT))
> + IOCTL(RTC_VL_CLR, 0, TYPE_NULL)
>
> IOCTL(BLKROSET, IOC_W, MK_PTR(TYPE_INT))
> IOCTL(BLKROGET, IOC_R, MK_PTR(TYPE_INT))
> diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
> index 8370f41..af4f366 100644
> --- a/linux-user/syscall_defs.h
> +++ b/linux-user/syscall_defs.h
> @@ -796,6 +796,8 @@ struct target_rtc_pll_info {
> struct target_rtc_pll_info)
> #define TARGET_RTC_PLL_SET TARGET_IOW('p', 0x12, \
> struct target_rtc_pll_info)
> +#define TARGET_RTC_VL_READ TARGET_IOR('p', 0x13, int)
> +#define TARGET_RTC_VL_CLR TARGET_IO('p', 0x14)
>
> #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SH4) || \
> defined(TARGET_XTENSA)
>
Applied to my linux-user branch.
Thanks,
Laurent