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| author | Eric Yilun Lin <yllin@chromium.org> | 2020-05-04 11:31:11 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-05-08 12:09:15 +0000 |
| commit | bf7f4a3e51d50d42375dda84c7e444f967adb055 (patch) | |
| tree | ae4e4f8e1a978c85b2dd03c84f0eca669f66a358 /include/power.h | |
| parent | ad5374cd4fa2e377ebe64b296102bc8499bb0b03 (diff) | |
| download | chrome-ec-bf7f4a3e51d50d42375dda84c7e444f967adb055.tar.gz | |
power: add power_wait_mask_signals_timeout()
Currently, we can only wait for a signal is presented via
power_wait_signals*(). However, we might want to wait a
power signal disappeared. power_wait_mask_signals_timeout()
does the thing, which can wait until a power signal is
disappeared.
BRANCH=master
BUG=b:150341779
TEST=test with CL:2120114
Change-Id: I0bbc04fcf76e67d7cfe86096a42e3b767a136ef9
Signed-off-by: Eric Yilun Lin <yllin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2176820
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Reviewed-by: Wai-Hong Tam <waihong@google.com>
Diffstat (limited to 'include/power.h')
| -rw-r--r-- | include/power.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/include/power.h b/include/power.h index 410f412502..41d7a5585d 100644 --- a/include/power.h +++ b/include/power.h @@ -116,7 +116,7 @@ int power_has_signals(uint32_t want); /** * Wait for power input signals to be present using default timeout * - * @param want Mask of signals which must be present (one or more + * @param want Wanted signals which must be present (one or more * POWER_SIGNAL_MASK()s). If want=0, stops waiting for * signals. * @return EC_SUCCESS when all inputs are present, or ERROR_TIMEOUT if timeout @@ -127,7 +127,7 @@ int power_wait_signals(uint32_t want); /** * Wait for power input signals to be present * - * @param want Mask of signals which must be present (one or more + * @param want Wanted signals which must be present (one or more * POWER_SIGNAL_MASK()s). If want=0, stops waiting for * signals. * @param timeout Timeout in usec to wait for signals to be present. @@ -137,6 +137,21 @@ int power_wait_signals(uint32_t want); int power_wait_signals_timeout(uint32_t want, int timeout); /** + * Wait for power input signals to be the desired state. + * + * @param want Desired signals states. (one or more + * POWER_SIGNAL_MASK()s). Signals can be presented or be + * disappeared. + * @param mask Masked signals that param 'want' cares. + * @param timeout Timeout in usec to wait for signals be in the deisred + * state. + * @return EC_SUCCESS when masked signals = wanted signals, or ERROR_TIMEOUT + * if timeout before reaching the desired state. + */ +int power_wait_mask_signals_timeout(uint32_t want, uint32_t mask, int timeout); + + +/** * Set the low-level power chipset state. * * @param new_state New chipset state. |