diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2014-08-20 15:36:27 -0500 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-08-21 08:02:00 +0000 |
| commit | 97a4fd2751a47189aeb181da9e5a42ed651e5c33 (patch) | |
| tree | b75783818bfa276373b61247aa06aa03ac4aa76d | |
| parent | f883354bbad138390142fdeaa554f55ee51551ef (diff) | |
| download | chrome-ec-97a4fd2751a47189aeb181da9e5a42ed651e5c33.tar.gz | |
power_button: expose raw signal assertion
It's useful to expose the logic of the power button assertion
according to the CONFIG active level at the hardware input.
Therefore, provide power_button_signal_asserted().
BUG=chrome-os-partner:31481
BRANCH=None
TEST=Benson tested this on ryu since has the button cables.
Change-Id: Ica48bfe981550700a067406cb72908e14dbccba9
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/213298
Reviewed-by: Alec Berg <alecaberg@chromium.org>
| -rw-r--r-- | common/power_button.c | 13 | ||||
| -rw-r--r-- | include/power_button.h | 6 |
2 files changed, 17 insertions, 2 deletions
diff --git a/common/power_button.c b/common/power_button.c index 7d7e90b86d..ffa93d1027 100644 --- a/common/power_button.c +++ b/common/power_button.c @@ -31,6 +31,16 @@ static int debounced_power_pressed; /* Debounced power button state */ static int simulate_power_pressed; /** + * Return non-zero if power button signal asserted at hardware input. + * + */ +int power_button_signal_asserted(void) +{ + return !!(gpio_get_level(GPIO_POWER_BUTTON_L) + == CONFIG_POWER_BUTTON_ACTIVE_STATE); +} + +/** * Get raw power button signal state. * * @return 1 if power button is pressed, 0 if not pressed. @@ -50,8 +60,7 @@ static int raw_power_button_pressed(void) return 0; #endif - return !!(gpio_get_level(GPIO_POWER_BUTTON_L) - == CONFIG_POWER_BUTTON_ACTIVE_STATE); + return power_button_signal_asserted(); } int power_button_is_pressed(void) diff --git a/include/power_button.h b/include/power_button.h index 190073812e..ce9f63e216 100644 --- a/include/power_button.h +++ b/include/power_button.h @@ -18,6 +18,12 @@ int power_button_is_pressed(void); /** + * Return non-zero if power button signal asserted at hardware input. + * + */ +int power_button_signal_asserted(void); + +/** * Interrupt handler for power button. * * @param signal Signal which triggered the interrupt. |