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Diffstat (limited to 'Core/EM/ACPI/SMB_EC.ASL')
| -rw-r--r-- | Core/EM/ACPI/SMB_EC.ASL | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/Core/EM/ACPI/SMB_EC.ASL b/Core/EM/ACPI/SMB_EC.ASL new file mode 100644 index 0000000..b82bdfb --- /dev/null +++ b/Core/EM/ACPI/SMB_EC.ASL @@ -0,0 +1,91 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2009, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Pkwy, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** +// $Header: /Alaska/BIN/Modules/ACPI/Template/Core/SMB_EC.ASL 2 3/26/09 4:53p Oleksiyy $ +// +// $Revision: 2 $ +// +// $Date: 3/26/09 4:53p $ +//**********************************************************************; +// Revision History +// ---------------- +// $Log: /Alaska/BIN/Modules/ACPI/Template/Core/SMB_EC.ASL $ +// +// 2 3/26/09 4:53p Oleksiyy +// New ACPI Core implementation - improves logic, execution time and +// memory usage of ACPI module. +// +// 1 3/24/05 5:01p Sivagarn +// +// 1 2/03/05 6:42p Sivagarn +// 0ABHI001 Check in +// +// 1 7/27/04 2:48p Yakovlevs +// +// 2 9/06/02 10:53a Alexp +// Add SourceSafe headers to all core asl files +// +// +//**********************************************************************; +//**********************************************************************; +// DON'T CHANGE ANY NAMES UNLESS REQUIRED !!! +//**********************************************************************; +// ACPI Embedded controller SMBus interface methods +//**********************************************************************; + +// SMBR - SMBus read method +// +// Arg0 - Device address +// Arg1 - Command Code +// Arg2 - Data to write +// Arg3 - Protocol (basically RDWD, WRWD or RDBL) + + Method(SMBR,4) { + If (LEqual(Arg3,RDBL)) {Store(0,DATB)} + Store(5, Local0) + While(Local0) { + Store(Arg0, ADDR) // Set the device address + Store(Arg1, SCMD) // Read Power unit value 0x3 offset + If (LEqual(Arg3, WRWD)) {Store(Arg2, DAT0)} + Store(Arg3, PRTC) // Set protocol - start SMBus transaction + Wait(SMBF, 0xFFF) // Wait till SMBus transaction completed + + Reset(SMBF) + +// One of known problems - ReadBlock of GLW SmartBattery may return BCNT=3 +// and data as FF FF FF with no any SMBus errors. To avoid this: +// If(Or(SSTS,And(LEqual(Arg2,RDBL),And(LEqual(BCNT,3),LEqual(DAT0,0xFFFF))))) + If(SSTS) + {Decrement(Local0)} // If any SMBus error + + Else { + Return(Ones) // exit on OK + } + } + Return(Zero) // exit on failure + } + +//**********************************************************************; +// *****************************************************************; +// *****************************************************************; +// ** **; +// ** (C)Copyright 1985-1996, American Megatrends, Inc. **; +// ** **; +// ** All Rights Reserved. **; +// ** **; +// ** 6145-F Northbelt Pkwy, Norcross, GA 30071 **; +// ** **; +// ** Phone (770)-246-8600 **; +// ** **; +// *****************************************************************; +// *****************************************************************; |