diff options
author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2018-07-08 00:39:14 +0300 |
---|---|---|
committer | Alexander Graf <agraf@suse.de> | 2018-07-25 16:00:24 +0300 |
commit | 49de24559df6d87bf83ac1a836ddc2620c91c667 (patch) | |
tree | c26aa767f72720996a51f72c5f5f8f0b3127650e /lib | |
parent | 197005ae2a78f14e02d44096c3ecb59b921c0467 (diff) | |
download | u-boot-49de24559df6d87bf83ac1a836ddc2620c91c667.tar.xz |
efi_loader: complete implementation of GetTime()
Implement the missing parts of the GetTime() runtime service.
Fill seconds.
Fill daylight saving time flag correctly.
Provide dummy values for capabilities.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'lib')
-rw-r--r-- | lib/efi_loader/efi_runtime.c | 53 |
1 files changed, 41 insertions, 12 deletions
diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c index 866387530a..06958f23fa 100644 --- a/lib/efi_loader/efi_runtime.c +++ b/lib/efi_loader/efi_runtime.c @@ -117,24 +117,41 @@ static void EFIAPI efi_reset_system_boottime( while (1) { } } +/** + * efi_get_time_boottime - get current time + * + * This function implements the GetTime runtime service. + * See the Unified Extensible Firmware Interface (UEFI) specification + * for details. + * + * @time: pointer to structure to receive current time + * @capabilities: pointer to structure to receive RTC properties + * Return Value: status code + */ static efi_status_t EFIAPI efi_get_time_boottime( struct efi_time *time, struct efi_time_cap *capabilities) { -#if defined(CONFIG_CMD_DATE) && defined(CONFIG_DM_RTC) - struct rtc_time tm; +#ifdef CONFIG_DM_RTC + efi_status_t ret = EFI_SUCCESS; int r; + struct rtc_time tm; struct udevice *dev; EFI_ENTRY("%p %p", time, capabilities); - r = uclass_get_device(UCLASS_RTC, 0, &dev); - if (r) - return EFI_EXIT(EFI_DEVICE_ERROR); + if (!time) { + ret = EFI_INVALID_PARAMETER; + goto out; + } - r = dm_rtc_get(dev, &tm); - if (r) - return EFI_EXIT(EFI_DEVICE_ERROR); + r = uclass_get_device(UCLASS_RTC, 0, &dev); + if (!r) + r = dm_rtc_get(dev, &tm); + if (r) { + ret = EFI_DEVICE_ERROR; + goto out; + } memset(time, 0, sizeof(*time)); time->year = tm.tm_year; @@ -142,11 +159,23 @@ static efi_status_t EFIAPI efi_get_time_boottime( time->day = tm.tm_mday; time->hour = tm.tm_hour; time->minute = tm.tm_min; - time->daylight = tm.tm_isdst; - - return EFI_EXIT(EFI_SUCCESS); + time->second = tm.tm_sec; + time->daylight = EFI_TIME_ADJUST_DAYLIGHT; + if (tm.tm_isdst > 0) + time->daylight |= EFI_TIME_IN_DAYLIGHT; + time->timezone = EFI_UNSPECIFIED_TIMEZONE; + + if (capabilities) { + /* Set reasonable dummy values */ + capabilities->resolution = 1; /* 1 Hz */ + capabilities->accuracy = 100000000; /* 100 ppm */ + capabilities->sets_to_zero = false; + } +out: + return EFI_EXIT(ret); #else - return EFI_DEVICE_ERROR; + EFI_ENTRY("%p %p", time, capabilities); + return EFI_EXIT(EFI_DEVICE_ERROR); #endif } |