C++ (Cpp) IOPCIDevice::configWrite16示例

IOReturn IntelMausi::setPowerStateWakeAction(OSObject *owner, void *arg1, void *arg2, void *arg3, void *arg4)
{
    IntelMausi *ethCtlr = OSDynamicCast(IntelMausi, owner);
    IOPCIDevice *dev;
    UInt16 val16;
    UInt8 offset;
    
    if (ethCtlr) {
        dev = ethCtlr->pciDevice;
        offset = ethCtlr->pciPMCtrlOffset;
        
        val16 = dev->configRead16(offset);
        
        val16 &= ~(kPCIPMCSPowerStateMask | kPCIPMCSPMEStatus | kPCIPMCSPMEEnable);
        val16 |= kPCIPMCSPowerStateD0;
        
        dev->configWrite16(offset, val16);
        
        /* Restore the PCI Command register. */
        ethCtlr->intelEnablePCIDevice(dev);
    }
    return kIOReturnSuccess;
}

示例#2

显示文件

文件： IntelMausiHardware.cpp 项目： theracermaster/IntelMausiEthernet

IOReturn IntelMausi::setPowerStateSleepAction(OSObject *owner, void *arg1, void *arg2, void *arg3, void *arg4)
{
    IntelMausi *ethCtlr = OSDynamicCast(IntelMausi, owner);
    IOPCIDevice *dev;
    UInt16 val16;
    UInt8 offset;
    
    if (ethCtlr) {
        dev = ethCtlr->pciDevice;
        offset = ethCtlr->pciPMCtrlOffset;
        
        val16 = dev->configRead16(offset);
        
        val16 &= ~(kPCIPMCSPowerStateMask | kPCIPMCSPMEStatus | kPCIPMCSPMEEnable);
        
        if (ethCtlr->wolActive)
            val16 |= (kPCIPMCSPMEStatus | kPCIPMCSPMEEnable | kPCIPMCSPowerStateD3);
        else
            val16 |= kPCIPMCSPowerStateD3;
        
        dev->configWrite16(offset, val16);
    }
    return kIOReturnSuccess;
}