10.2.2.12. _BTH（电池节流限制）
此方法将把电池上设置的热节流限制传达给平台固件。
参数：
Arg0 - 一个 0 到 100 的整数，包含以百分比表示的电池热节流限制。在 100% 时，电池可以以最大电流充电。
返回值：
无。
注意：固件负责在进行充电时考虑当前热节流限制
示例：
Scope(\_SB.PCI0.ISA0) {
Device(EC0) {
Name(_HID, EISAID("PNP0C09")) // ID for this EC
// current resource description for this EC
Name(_CRS, ResourceTemplate() {
IO(Decode16,0x62,0x62,0,1)
IO(Decode16,0x66,0x66,0,1)
})
Name(_GPE, 0) // GPE index for this EC
// create EC's region and field for thermal support
OperationRegion(EC0, EmbeddedControl, 0, 0xFF)
Field(EC0, ByteAcc, Lock, Preserve) {
TMP, 16, // current temp
PSV, 16, // passive cooling temp
BTH 16, // battery charge rate limit
}
// following is a method that OSPM will schedule after
// it receives an SCI and queries the EC to receive value 7
Method(_Q07) {
Notify (\_SB.PCI0.ISA0.EC0.TZ0, 0x80) } // end of Notify method
// create a thermal zone
ThermalZone (TZ0) {
Method(_TMP) { Return (\_SB.PCI0.ISA0.EC0.TMP )} // get current temp
Method(_PSV) { Return (\_SB.PCI0.ISA0.EC0.PSV) } // passive cooling temp
Name(_TZD, Package (){\_SB.PCI0.ISA0.EC0.BAT0}) // passive cooling devices
Name(_TC1, 4) // bogus example constant
Name(_TC2, 3) // bogus example constant
Name(_TSP, 150) // passive sampling = 15 sec
} // end of TZ0
Device (BAT0) {
Name(_HID, "PNP0C0A")
Name(_UID, One)
Method (_BTH, 0x1, NotSerialized) {
Store(Arg0, \_SB.PCI0.ISA0.EC0.BTH)
}
// additional battery objects
}
} // end of ECO
} // end of \\_SB.PCI0.ISA0 scope
} // end of \\_SB scope