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| author | Vincent Palatin <vpalatin@chromium.org> | 2012-08-05 20:47:54 -0700 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2012-08-06 18:55:00 -0700 |
| commit | dbc861c5f0115ec673be2a7c6837d19dc9e3c4c1 (patch) | |
| tree | 5f1082ee2e4c0a6bc7e75c70ea42a92c1cd5dcd7 /include/hwtimer.h | |
| parent | d8e04f0db75a0088121981df3bd57c3dccb10945 (diff) | |
| download | chrome-ec-dbc861c5f0115ec673be2a7c6837d19dc9e3c4c1.tar.gz | |
add a function to fast forward system timer
When we wake up from a deep sleep mode, the system timer clock might
have been stopped. We need to be able to set using another time source
(e.g. the RTC).
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BUG=chrome-os-partner:8866
TEST=make BOARD=snow && make BOARD=link
on Snow, on a software implementing STOP mode, check the system time is
still accurate by comparing it to the wall clock.
Change-Id: Ieddbb423d052c7aceb398470866b25b25a74c0a0
Reviewed-on: https://gerrit.chromium.org/gerrit/29314
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'include/hwtimer.h')
| -rw-r--r-- | include/hwtimer.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/hwtimer.h b/include/hwtimer.h index fdf1d94852..b9b2270fd6 100644 --- a/include/hwtimer.h +++ b/include/hwtimer.h @@ -52,6 +52,9 @@ void __hw_clock_event_clear(void); /* Returns the value of the free-running counter used as clock. */ uint32_t __hw_clock_source_read(void); +/* Override the current value of the hardware counter */ +void __hw_clock_source_set(uint32_t ts); + /** * Initializes the hardware timer used to provide clock services, using the * specified start timer value. |