diff options
Diffstat (limited to 'board/samus/extpower.c')
| -rw-r--r-- | board/samus/extpower.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/board/samus/extpower.c b/board/samus/extpower.c index 4da7e655a7..60f97a4da2 100644 --- a/board/samus/extpower.c +++ b/board/samus/extpower.c @@ -8,6 +8,7 @@ * Drive high in S5-S0 when AC_PRESENT is high, otherwise drive low. */ +#include "charger.h" #include "chipset.h" #include "common.h" #include "extpower.h" @@ -25,10 +26,24 @@ int extpower_is_present(void) */ static void extpower_deferred(void) { + static int extpower_prev; + int extpower = extpower_is_present(); + + if (extpower && !extpower_prev) { + charger_discharge_on_ac(0); + } else if (extpower && extpower_prev) { + /* glitch on AC_PRESENT, attempt to recover from backboost */ + charger_discharge_on_ac(1); + charger_discharge_on_ac(0); + } else { + charger_discharge_on_ac(1); + } + extpower_prev = extpower; + hook_notify(HOOK_AC_CHANGE); /* Forward notification to host */ - if (extpower_is_present()) + if (extpower) host_set_single_event(EC_HOST_EVENT_AC_CONNECTED); else host_set_single_event(EC_HOST_EVENT_AC_DISCONNECTED); @@ -66,6 +81,8 @@ static void extpower_init(void) { extpower_buffer_to_pch(); + hook_call_deferred(extpower_deferred, 0); + /* Enable interrupts, now that we've initialized */ gpio_enable_interrupt(GPIO_AC_PRESENT); } |