04c_FanSpeed.txt

#Maintained by: RehabMan for: HP Probook 4x30s/4x40s
# 04c_FanSpeed.txt

# This fan patch simply reports CPU Heatsink, Ambient, and Fan Speed.
# No manipulation of fan speed is done.  You get default BIOS behavior.

# add fan readings only
into device label SMCD remove_entry;
into definitionblock code_regex . insert
begin
Device (SMCD)\n
{\n
    Name (_HID, "FAN00000") // _HID: Hardware ID\n
// ACPISensors.kext configuration\n
    Name (TACH, Package()\n
    {\n
        "System Fan", "FAN0",\n
    })\n
    Name (TEMP, Package()\n
    {\n
        "CPU Heatsink", "TCPU",\n
        "Ambient", "TAMB",\n
        //"Mainboard", "TSYS",\n
        //"CPU Proximity", "TCPP",\n
    })\n
// Actual methods to implement fan/temp readings/control\n
    Method (FAN0, 0, Serialized)\n
    {\n
        Store (\_SB.PCI0.LPCB.EC0.FRDC, Local0)
        If (Local0) { Divide (Add(0x3C000, ShiftRight(Local0,1)), Local0,, Local0) }
		If (LEqual (0x03C4, Local0)) { Return (Zero) }\n
        Return (Local0)\n
    }\n
    Method (TCPU, 0, Serialized)\n
    {\n
        Acquire (\_SB.PCI0.LPCB.EC0.ECMX, 0xFFFF)\n
        Store (1, \_SB.PCI0.LPCB.EC0.CRZN)\n
        Store (\_SB.PCI0.LPCB.EC0.DTMP, Local0)\n
        Release (\_SB.PCI0.LPCB.EC0.ECMX)\n
        Return (Local0)\n
    }\n
	Method (TAMB, 0, Serialized)
	{\n
        Acquire (\_SB.PCI0.LPCB.EC0.ECMX, 0xFFFF)\n
        Store (4, \_SB.PCI0.LPCB.EC0.CRZN)\n
        Store (\_SB.PCI0.LPCB.EC0.TEMP, Local0)\n
        Release (\_SB.PCI0.LPCB.EC0.ECMX)\n
        Return (Local0)\n
	}\n
}\n
end;