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Commit 501385f2 authored by Geliang Tang's avatar Geliang Tang Committed by Alexandre Belloni
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rtc: efi: add efi_procfs in efi_rtc_ops



Add efi_procfs in efi_rtc_ops to show rtc-efi info in /proc/driver/rtc.
Most of the code comes from efi_rtc_proc_show() in efirtc.

Signed-off-by: default avatarGeliang Tang <geliangtang@163.com>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
parent b01079be
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+62 −4
Original line number Diff line number Diff line
@@ -191,11 +191,69 @@ static int efi_set_time(struct device *dev, struct rtc_time *tm)
	return status == EFI_SUCCESS ? 0 : -EINVAL;
}

static int efi_procfs(struct device *dev, struct seq_file *seq)
{
	efi_time_t      eft, alm;
	efi_time_cap_t  cap;
	efi_bool_t      enabled, pending;

	memset(&eft, 0, sizeof(eft));
	memset(&alm, 0, sizeof(alm));
	memset(&cap, 0, sizeof(cap));

	efi.get_time(&eft, &cap);
	efi.get_wakeup_time(&enabled, &pending, &alm);

	seq_printf(seq,
		   "Time\t\t: %u:%u:%u.%09u\n"
		   "Date\t\t: %u-%u-%u\n"
		   "Daylight\t: %u\n",
		   eft.hour, eft.minute, eft.second, eft.nanosecond,
		   eft.year, eft.month, eft.day,
		   eft.daylight);

	if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE)
		seq_puts(seq, "Timezone\t: unspecified\n");
	else
		/* XXX fixme: convert to string? */
		seq_printf(seq, "Timezone\t: %u\n", eft.timezone);

	seq_printf(seq,
		   "Alarm Time\t: %u:%u:%u.%09u\n"
		   "Alarm Date\t: %u-%u-%u\n"
		   "Alarm Daylight\t: %u\n"
		   "Enabled\t\t: %s\n"
		   "Pending\t\t: %s\n",
		   alm.hour, alm.minute, alm.second, alm.nanosecond,
		   alm.year, alm.month, alm.day,
		   alm.daylight,
		   enabled == 1 ? "yes" : "no",
		   pending == 1 ? "yes" : "no");

	if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE)
		seq_puts(seq, "Timezone\t: unspecified\n");
	else
		/* XXX fixme: convert to string? */
		seq_printf(seq, "Timezone\t: %u\n", alm.timezone);

	/*
	 * now prints the capabilities
	 */
	seq_printf(seq,
		   "Resolution\t: %u\n"
		   "Accuracy\t: %u\n"
		   "SetstoZero\t: %u\n",
		   cap.resolution, cap.accuracy, cap.sets_to_zero);

	return 0;
}

static const struct rtc_class_ops efi_rtc_ops = {
	.read_time	= efi_read_time,
	.set_time	= efi_set_time,
	.read_alarm	= efi_read_alarm,
	.set_alarm	= efi_set_alarm,
	.proc		= efi_procfs,
};

static int __init efi_rtc_probe(struct platform_device *dev)