[RFC 5/5] commands: add hwclock

[Sascha Hauer]

On Thu, Jul 10, 2014 at 12:33:19PM +0400, Antony Pavlov wrote:
> Signed-off-by: Antony Pavlov <antonynpavlov at gmail.com>
> ---
>  commands/Kconfig   |  8 ++++++++
>  commands/Makefile  |  1 +
>  commands/hwclock.c | 37 +++++++++++++++++++++++++++++++++++++
>  3 files changed, 46 insertions(+)
> 
> diff --git a/commands/Kconfig b/commands/Kconfig
> index 61816f5..a594f7c 100644
> --- a/commands/Kconfig
> +++ b/commands/Kconfig
> @@ -1691,6 +1691,14 @@ config CMD_GPIO
>  
>  	  Usage: gpio_set_value GPIO VALUE
>  
> +config CMD_HWCLOCK
> +	bool
> +	depends on RTC_CLASS
> +	prompt "hwclock command"
> +	default y
> +	help
> +	  The lspci command allows to query or set the hardware clock (RTC).

lspci? ;)

> +static int do_hwclock(int argc, char *argv[])
> +{
> +	struct rtc_device *r;
> +	struct rtc_time tm;
> +	char *rtc_name;
> +
> +	rtc_name = "rtc0";
> +
> +	if (argc > 1)
> +		rtc_name = argv[1];
> +
> +	r = rtc_lookup(rtc_name);
> +	if (IS_ERR(r))
> +		return PTR_ERR(r);
> +
> +	rtc_read_time(r, &tm);
> +
> +	printf("%02d:%02d:%02d %02d-%02d-%04d\n",
> +		tm.tm_hour, tm.tm_min, tm.tm_sec,
> +		tm.tm_mday, tm.tm_mon, tm.tm_year);
> +
> +	return 0;
> +}
> +
> +BAREBOX_CMD_START(hwclock)
> +	.cmd		= do_hwclock,
> +	BAREBOX_CMD_DESC("query or set the hardware clock (RTC)")

This initial version doesn't allow to set the time.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |