# Patch by EMlyDinEsH (OSXLatitude)
# Patch for Asus Ambient Light Sensor device to work with my AsusNBFnKeys driver

# Modifying method RALS of ALS device 
# to work with keyboard backlight and report its value to my driver
into Method label RALS replace_content begin
                If (ALAE)\n
                {\n
                    Store (RRAM (0x02A3), Local0)\n
                    Store (RRAM (0x02A4), Local1)\n
                    ShiftLeft (Local0, 0x08, Local0)\n
                    Add (Local0, Local1, Local0)\n
                    Multiply (Local0, 0x03E8, Local1)\n
                    Divide (Local1, ALSA, Local2, Local3)\n
                }\n
                Else\n
                {\n
                    Return (0x012C)\n
                }\n

                If (LLessEqual (Local3, 0x3C))\n
                {\n
                    ^^^^ATKD.SKBL (0x03)\n
                    Store (One, Local4)\n
                }\n
                Else\n
                {\n
                    If (LLessEqual (Local3, 0x82))\n
                    {\n
                        ^^^^ATKD.SKBL (0x02)\n
                        Store (0x02, Local4)\n
                    }\n
                    Else\n
                    {\n
                        If (LLessEqual (Local3, 0xFF))\n
                        {\n
                            ^^^^ATKD.SKBL (One)\n
                            Store (0x03, Local4)\n
                        }\n
                        Else\n
                        {\n
                            ^^^^ATKD.SKBL (Zero)\n
                            Store (0x04, Local4)\n
                        }\n
                    }\n
                }\n

                Return (Local4)\n            
 end;

# Modifying ALS notifier methods _QDD and _QCD methods to notify event
into Method label _QDD replace_content begin
             Notify (ALS, 0x80)\n
             If (ATKP)\n
             {\n
                 ^^^^ATKD.IANE (0xC6)\n
             }
end;

into Method label _QCD replace_content begin
            Notify (ALS, 0x80)\n
             If (ATKP)\n
             {\n
                 ^^^^ATKD.IANE (0xC7)\n
             }
end;

# Inserting method ALSS into ATKD
# for reading ambient illuminance values from my AsusNBFnKeys driver
into method label ALSS parent_label ATKD remove_entry;
into device label ATKD insert begin
Method (ALSS, 0, NotSerialized)\n
            {\n
                Return (^^PCI0.LPCB.EC0.RALS ())\n
            }
end;