[PATCH v3 6/6] kernel32: Implement GetSystemPowerStatus on top of NtPowerInformation
Alex Henrie
alexhenrie24 at gmail.com
Wed Sep 25 02:27:02 CDT 2019
Signed-off-by: Alex Henrie <alexhenrie24 at gmail.com>
---
v3: Still report unknown values if SystemBatteryState is not implemented
---
dlls/kernel32/powermgnt.c | 48 +++++++++++++++++++++++++++++++--------
1 file changed, 38 insertions(+), 10 deletions(-)
diff --git a/dlls/kernel32/powermgnt.c b/dlls/kernel32/powermgnt.c
index 7efd84d410..d967dfefa7 100644
--- a/dlls/kernel32/powermgnt.c
+++ b/dlls/kernel32/powermgnt.c
@@ -45,19 +45,47 @@ BOOL WINAPI GetDevicePowerState(HANDLE hDevice, BOOL* pfOn)
*/
BOOL WINAPI GetSystemPowerStatus(LPSYSTEM_POWER_STATUS ps)
{
- WARN("(%p): stub, harmless.\n", ps);
+ SYSTEM_BATTERY_STATE bs;
+ NTSTATUS status;
+
+ TRACE("(%p)\n", ps);
+
+ ps->ACLineStatus = AC_LINE_UNKNOWN;
+ ps->BatteryFlag = BATTERY_FLAG_UNKNOWN;
+ ps->BatteryLifePercent = BATTERY_PERCENTAGE_UNKNOWN;
+ ps->SystemStatusFlag = 0;
+ ps->BatteryLifeTime = BATTERY_LIFE_UNKNOWN;
+ ps->BatteryFullLifeTime = BATTERY_LIFE_UNKNOWN;
+
+ status = NtPowerInformation(SystemBatteryState, NULL, 0, &bs, sizeof(bs));
+ if (status == STATUS_NOT_IMPLEMENTED) return TRUE;
+ if (FAILED(status)) return FALSE;
+
+ ps->ACLineStatus = bs.AcOnLine;
- if (ps)
+ if (bs.BatteryPresent)
{
- ps->ACLineStatus = 255;
- ps->BatteryFlag = 255;
- ps->BatteryLifePercent = 255;
- ps->SystemStatusFlag = 0;
- ps->BatteryLifeTime = ~0u;
- ps->BatteryFullLifeTime = ~0u;
- return TRUE;
+ ps->BatteryLifePercent = bs.MaxCapacity ? bs.RemainingCapacity / bs.MaxCapacity : 100;
+ ps->BatteryLifeTime = bs.EstimatedTime;
+ if (!bs.Charging && (LONG)bs.Rate < 0)
+ ps->BatteryFullLifeTime = 3600 * bs.MaxCapacity / -(LONG)bs.Rate;
+
+ ps->BatteryFlag = 0;
+ if (bs.Charging)
+ ps->BatteryFlag |= BATTERY_FLAG_CHARGING;
+ if (ps->BatteryLifePercent > 66)
+ ps->BatteryFlag |= BATTERY_FLAG_HIGH;
+ if (ps->BatteryLifePercent < 33)
+ ps->BatteryFlag |= BATTERY_FLAG_LOW;
+ if (ps->BatteryLifePercent < 5)
+ ps->BatteryFlag |= BATTERY_FLAG_CRITICAL;
}
- return FALSE;
+ else
+ {
+ ps->BatteryFlag = BATTERY_FLAG_NO_BATTERY;
+ }
+
+ return TRUE;
}
/***********************************************************************
--
2.23.0
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