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Fixed power state reporting for the Nintendo Joy-Con Charging Grip

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This commit is contained in:
Sam Lantinga
2025-10-13 10:34:22 -07:00
parent 6b5b0ca90a
commit 361f7e0873
1 changed files with 17 additions and 7 deletions
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22
src/joystick/hidapi/SDL_hidapi_switch.c
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@@ -315,6 +315,8 @@ typedef struct
Uint64 m_ulIMUUpdateIntervalNS;
Uint64 m_ulTimestampNS;
bool m_bVerticalMode;
SDL_PowerState m_ePowerState;
int m_nPowerPercent;
SwitchInputOnlyControllerStatePacket_t m_lastInputOnlyState;
SwitchSimpleStatePacket_t m_lastSimpleState;
@@ -2583,21 +2585,29 @@ static void HandleFullControllerState(SDL_Joystick *joystick, SDL_DriverSwitch_C
* LSB of the battery nibble is used to report charging.
* The battery level is reported from 0(empty)-8(full)
*/
SDL_PowerState state;
int charging = (packet->controllerState.ucBatteryAndConnection & 0x10);
int level = (packet->controllerState.ucBatteryAndConnection & 0xE0) >> 4;
int percent = (int)SDL_roundf((level / 8.0f) * 100.0f);
if (charging) {
if (level == 8) {
state = SDL_POWERSTATE_CHARGED;
ctx->m_ePowerState = SDL_POWERSTATE_CHARGED;
} else {
state = SDL_POWERSTATE_CHARGING;
ctx->m_ePowerState = SDL_POWERSTATE_CHARGING;
}
} else {
state = SDL_POWERSTATE_ON_BATTERY;
ctx->m_ePowerState = SDL_POWERSTATE_ON_BATTERY;
}
ctx->m_nPowerPercent = (int)SDL_roundf((level / 8.0f) * 100.0f);
if (!ctx->device->parent) {
SDL_PowerState state = ctx->m_ePowerState;
int percent = ctx->m_nPowerPercent;
SDL_SendJoystickPowerInfo(joystick, state, percent);
} else if (ctx->m_eControllerType == k_eSwitchDeviceInfoControllerType_JoyConRight) {
SDL_DriverSwitch_Context *other = (SDL_DriverSwitch_Context *)ctx->device->parent->children[0]->context;
SDL_PowerState state = (SDL_PowerState)SDL_min(ctx->m_ePowerState, other->m_ePowerState);
int percent = SDL_min(ctx->m_nPowerPercent, other->m_nPowerPercent);
SDL_SendJoystickPowerInfo(joystick, state, percent);
}
if (ctx->m_bReportSensors) {
bool bHasSensorData = (packet->imuState[0].sAccelZ != 0 ||