From: Laurent Vivier <laurent@vivier.eu>
To: Filip Bozuta <Filip.Bozuta@rt-rk.com>, qemu-devel@nongnu.org
Cc: riku.voipio@iki.fi
Subject: Re: [PATCH 04/12] linux-user: Add support for getting/setting RTC wakeup alarm using ioctls
Date: Tue, 14 Jan 2020 13:37:59 +0100 [thread overview]
Message-ID: <49d61933-60d5-535d-5ccb-b31a0a2be594@vivier.eu> (raw)
In-Reply-To: <1578574763-8327-5-git-send-email-Filip.Bozuta@rt-rk.com>
Le 09/01/2020 à 13:59, Filip Bozuta a écrit :
> This patch implements functionalities of following ioctls:
>
> RTC_WKALM_SET, RTC_WKALM_GET - Getting/Setting wakeup alarm
>
> Some RTCs support a more powerful alarm interface, using these
> ioctls to read or write the RTC's alarm time (respectively)
> with this structure:
>
> struct rtc_wkalrm {
> unsigned char enabled;
> unsigned char pending;
> struct rtc_time time;
> };
>
> The enabled flag is used to enable or disable the alarm
> interrupt, or to read its current status; when using these
> calls, RTC_AIE_ON and RTC_AIE_OFF are not used. The pending
> flag is used by RTC_WKALM_RD to report a pending interrupt
> (so it's mostly useless on Linux, except when talking to the
> RTC managed by EFI firmware). The time field is as used with
> RTC_ALM_READ and RTC_ALM_SET except that the tm_mday, tm_mon,
> and tm_year fields are also valid. A pointer to this structure
> should be passed as the third ioctl's argument.
>
> Implementation notes:
>
> All ioctls in this patch have a pointer to a structure
> rtc_wkalrm as their third argument. That is the reason why
> corresponding definition is added in linux-user/syscall_types.h.
> Since all elements of this structure are either of type
> 'unsigned char' or 'struct rtc_time' (that was covered in one
> of previous patches), the rest of the implementation is
> straightforward.
>
> Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
> ---
> linux-user/ioctls.h | 2 ++
> linux-user/syscall_defs.h | 2 ++
> linux-user/syscall_types.h | 5 +++++
> 3 files changed, 9 insertions(+)
>
> diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
> index accbdee..b09396e 100644
> --- a/linux-user/ioctls.h
> +++ b/linux-user/ioctls.h
> @@ -85,6 +85,8 @@
> IOCTL(RTC_IRQP_SET, IOC_W, TYPE_ULONG)
> IOCTL(RTC_EPOCH_READ, IOC_R, MK_PTR(TYPE_ULONG))
> IOCTL(RTC_EPOCH_SET, IOC_W, TYPE_ULONG)
> + IOCTL(RTC_WKALM_RD, IOC_R, MK_PTR(MK_STRUCT(STRUCT_rtc_wkalrm)))
> + IOCTL(RTC_WKALM_SET, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtc_wkalrm)))
>
> 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 bbfa935..37504a2 100644
> --- a/linux-user/syscall_defs.h
> +++ b/linux-user/syscall_defs.h
> @@ -780,6 +780,8 @@ struct target_pollfd {
> #define TARGET_RTC_IRQP_SET TARGET_IOW('p', 0x0c, abi_ulong)
> #define TARGET_RTC_EPOCH_READ TARGET_IOR('p', 0x0d, abi_ulong)
> #define TARGET_RTC_EPOCH_SET TARGET_IOW('p', 0x0e, abi_ulong)
> +#define TARGET_RTC_WKALM_RD TARGET_IOR('p', 0x10, struct rtc_wkalrm)
> +#define TARGET_RTC_WKALM_SET TARGET_IOW('p', 0x0f, struct rtc_wkalrm)
>
> #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SH4) || \
> defined(TARGET_XTENSA)
> diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h
> index a35072a..820bc8e 100644
> --- a/linux-user/syscall_types.h
> +++ b/linux-user/syscall_types.h
> @@ -266,6 +266,11 @@ STRUCT(rtc_time,
> TYPE_INT, /* tm_yday */
> TYPE_INT) /* tm_isdst */
>
> +STRUCT(rtc_wkalrm,
> + TYPE_CHAR, /* enabled */
> + TYPE_CHAR, /* pending */
> + MK_STRUCT(STRUCT_rtc_time)) /* time */
> +
> STRUCT(blkpg_ioctl_arg,
> TYPE_INT, /* op */
> TYPE_INT, /* flags */
>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
next prev parent reply other threads:[~2020-01-14 12:39 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-09 12:59 [PATCH 00/12] linux-user: Add support for real time clock and Filip Bozuta
2020-01-09 12:59 ` [PATCH 01/12] linux-user: Add support for enabling/disabling RTC features using ioctls Filip Bozuta
2020-01-14 12:28 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 02/12] linux-user: Add support for getting/setting RTC time and alarm " Filip Bozuta
2020-01-14 12:30 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 03/12] linux-user: Add support for getting/setting RTC periodic interrupt and epoch " Filip Bozuta
2020-01-14 12:36 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 04/12] linux-user: Add support for getting/setting RTC wakeup alarm " Filip Bozuta
2020-01-14 12:37 ` Laurent Vivier [this message]
2020-01-09 12:59 ` [PATCH 05/12] linux-user: Add support for getting/setting RTC PLL correction " Filip Bozuta
2020-01-14 12:39 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 06/12] linux-user: Add support for read/clear RTC voltage low detector " Filip Bozuta
2020-01-14 12:40 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 07/12] linux-user: Add support for getting alsa timer version and id Filip Bozuta
2020-01-14 12:42 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 08/12] linux-user: Add support for setting alsa timer enhanced read using ioctl Filip Bozuta
2020-01-14 12:44 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 09/12] linux-user: Add support for getting/setting specified alsa timer parameters using ioctls Filip Bozuta
2020-01-14 12:52 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 10/12] linux-user: Add support for selecting alsa timer using ioctl Filip Bozuta
2020-01-14 12:53 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 11/12] linux-user: Add support for getting/setting selected alsa timer parameters using ioctls Filip Bozuta
2020-01-14 13:09 ` Laurent Vivier
2020-01-09 12:59 ` [PATCH 12/12] linux-user: Add support for selected alsa timer instructions " Filip Bozuta
2020-01-14 12:57 ` Laurent Vivier
2020-01-14 12:39 ` [PATCH 00/12] linux-user: Add support for real time clock and Philippe Mathieu-Daudé
2020-01-14 12:47 ` Laurent Vivier
2020-01-15 15:53 Filip Bozuta
2020-01-15 15:53 ` [PATCH 04/12] linux-user: Add support for getting/setting RTC wakeup alarm using ioctls Filip Bozuta
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