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| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2014-12-16 09:54:54 -0800 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-12-17 18:07:10 +0000 |
| commit | a7bae3588cb976405b90677a324de06c71fa3f48 (patch) | |
| tree | f758c61f021485acee7ee82e4ebfa51f3b0300a9 /common/charge_state_v1.c | |
| parent | 6c980a4dbf2e37b83e868c0eb12774190ea8c94d (diff) | |
| download | chrome-ec-a7bae3588cb976405b90677a324de06c71fa3f48.tar.gz | |
power_button_x86: Inhibit AP power-on if battery level is too low
Allow CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON to be defined at the board
level to be the minimum battery percentage required for power-on. If the
battery level is below the threshold, or if the battery is missing,
power button presses will be ignored.
BUG=chrome-os-partner:31127
TEST=Manual on Samus with subsequent commit. Verify that AP continues
to boot normally when charge level exceeds
CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON. Verify that power button
presses are ignored when the charge level is below the threshold, and
we return to G3.
BRANCH=Samus
Change-Id: I0ff3f7ddabf38080332470e172c8b2e307bf1655
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/236021
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Diffstat (limited to 'common/charge_state_v1.c')
| -rw-r--r-- | common/charge_state_v1.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/common/charge_state_v1.c b/common/charge_state_v1.c index b4ecb74c5b..9be0d47c15 100644 --- a/common/charge_state_v1.c +++ b/common/charge_state_v1.c @@ -681,6 +681,19 @@ int charge_want_shutdown(void) charge_get_percent() < BATTERY_LEVEL_SHUTDOWN; } +int charge_prevent_power_on(void) +{ + int prevent_power_on = 0; +#ifdef CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON + /* Require a minimum battery level to power on */ + if (battery_is_present() == BP_NO || + charge_get_percent() < CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON) + prevent_power_on = 1; +#endif + /* Factory override: Always allow power on if WP is disabled */ + return prevent_power_on && system_is_locked(); +} + static int charge_force_idle(int enable) { if (enable) { |