Convert the x86 RTC driver to use new validated BCD<->timespec conversions
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Authored by • ian on Jan 1 2018, 11:52 PM.

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Summary

New common routines were added to kern/subr_clock.c for converting between calendrical time expressed in BCD and struct timespec. The new functions return EINVAL on error, as expected when the clock hardware does not provide valid time.

Test Plan

This code compiles, but has not been tested yet on any x86 hardware (or emulation).

Code has now been run-tested (see PR 224813).

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rS FreeBSD src repository - subversion

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Buildable 14249

Event Timeline

• ian created this revision.Jan 1 2018, 11:52 PM

Herald added a subscriber: imp. · View Herald TranscriptJan 1 2018, 11:52 PM

• ian added a parent revision: D13730: Add RTC clock conversions for BCD values, with non-panic validation..Jan 1 2018, 11:53 PM

Follow changes in D13730... the conversion routines now take a bool flag to indicate whether AM/PM mode conversions need to be done. atrtc always operates in 24-hour mode.

• ian edited the test plan for this revision. (Show Details)Jan 15 2018, 4:39 PM

Committed as r328005

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sys/

x86/

isa/

atrtc.c

59 lines

Diff 37730

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Convert the x86 RTC driver to use new validated BCD<->timespec conversionsAbandonedPublicActions