/**
Saves an SMBus operation to S3 script to be replayed on S3 resume.
This function provides a standard way to save SMBus operation to S3 boot Script.
The data can either be of the Length byte, word, or a block of data.
If it falis to save S3 boot script, then ASSERT ().
@param SmbusOperation Signifies which particular SMBus hardware protocol instance that it will use to
execute the SMBus transactions.
@param SmBusAddress Address that encodes the SMBUS Slave Address,
SMBUS Command, SMBUS Data Length, and PEC.
@param Length Signifies the number of bytes that this operation will do. The maximum number of
bytes can be revision specific and operation specific.
@param Buffer Contains the value of data to execute to the SMBus slave device. Not all operations
require this argument. The length of this buffer is identified by Length.
**/
VOID
InternalSaveSmBusExecToBootScript (
IN EFI_SMBUS_OPERATION SmbusOperation,
IN UINTN SmBusAddress,
IN UINTN Length,
IN OUT VOID *Buffer
)
{
RETURN_STATUS Status;
Status = S3BootScriptSaveSmbusExecute (
SmBusAddress,
SmbusOperation,
&Length,
Buffer
);
ASSERT (Status == RETURN_SUCCESS);
}
/**
Internal function to add smbus execute opcode to the table.
@param Marker The variable argument list to get the opcode
and associated attributes.
@retval EFI_OUT_OF_RESOURCES Not enough resource to do operation.
@retval EFI_SUCCESS Opcode is added.
**/
EFI_STATUS
BootScriptWriteSmbusExecute (
IN VA_LIST Marker
)
{
EFI_SMBUS_DEVICE_ADDRESS SlaveAddress;
EFI_SMBUS_DEVICE_COMMAND Command;
EFI_SMBUS_OPERATION Operation;
BOOLEAN PecCheck;
VOID *Buffer;
UINTN *DataSize;
UINTN SmBusAddress;
SlaveAddress.SmbusDeviceAddress = VA_ARG (Marker, UINTN);
Command = VA_ARG (Marker, EFI_SMBUS_DEVICE_COMMAND);
Operation = VA_ARG (Marker, EFI_SMBUS_OPERATION);
PecCheck = VA_ARG (Marker, BOOLEAN);
SmBusAddress = SMBUS_LIB_ADDRESS (SlaveAddress.SmbusDeviceAddress,Command,0,PecCheck);
DataSize = VA_ARG (Marker, UINTN *);
Buffer = VA_ARG (Marker, VOID *);
return S3BootScriptSaveSmbusExecute (SmBusAddress, Operation, DataSize, Buffer);
}
