Hi everyone...
So, i done a code to issue command to ATA device. The command is B0/DAh to
verify the result of the SHORT SELF TEST.
Packet.Protocol =
EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA;
Packet.Length =
EFI_ATA_PASS_THRU_LENGTH_BYTES;
Packet.Asb = &Asb;
Packet.Acb = &Acb;
Packet.InDataBuffer = Buffer;
Packet.InTransferLength = 512;
Packet.Timeout =
ATA_PASS_THRU_TIMEOUT;
Acb.AtaCommand = ATA_CMD_SMART;
//b0
Acb.AtaFeatures =
ATA_SMART_RETURN_STATUS; //da
Acb.AtaCylinderLow =
ATA_CONSTANT_4F; //4f
Acb.AtaCylinderHigh =
ATA_CONSTANT_C2; //c2
Status = instance->PassThru(instance,Port,PortMultiplier,&Packet,NULL);
if(!EFI_ERROR(Status))
{
Print(L"\n ----------------------------\nPassThru Command
B0/%x: %r
",ATA_SMART_RETURN_STATUS,Status);
PrintBuffer(Buffer);
}else if(!EFI_ERROR( Status =
instance->PassThru(instance,Port,ATA_VALUE_PORT,&Packet,NULL) ))
{
Print(L"\n ----------------------------\nPassThru Command
B0/%x: %r
",ATA_SMART_RETURN_STATUS,Status);
PrintBuffer(Buffer);
}else if(!EFI_ERROR( Status =
instance->PassThru(instance,Port,0,&Packet,NULL) ))
{
Print(L"\n ----------------------------\nPassThru Command
B0/%x: %r
",ATA_SMART_RETURN_STATUS,Status);
PrintBuffer(Buffer);
}
else
{
Print(L"\n ----------------------------\nPassThru Command
B0/%x: %r
",ATA_SMART_RETURN_STATUS,Status);
Print(L"\nSend error");
Print(L"\nDevice Port: %x",Port);
Print(L"\nDevice MultiplierPort: %x\n\n",PortMultiplier);
}
Print(L"\nAcb LBA MIDDLE %x",Acb.AtaCylinderLow);
Print(L"\nAcb LBA HIGH %x",Acb.AtaCylinderHigh);
Print(L"\nAcb LBA %x",Acb.AtaCylinderLowExp);
Print(L"\nAcb LBA %x",Acb.AtaCylinderHighExp);
Print(L"\nAsb LBA MIDDLE %x",Asb.AtaCylinderLow);
Print(L"\nAsb LBA HIGH %x",Asb.AtaCylinderHigh);
Print(L"\nAsb LBA %x",Asb.AtaCylinderHighExp);
Print(L"\nAsb LBA %x",Asb.AtaCylinderLowExp);
When the PC are in AHCI mode ...Acb show LBA MIDDLE and HIGH, when change to
IDE mode. All LBA ( Asb and Acb ) are showed.
My question is:
Why was the Acb variable only in AHCI mode shown? Am I verifying the right
variable?
When I use the Acb and the Asb ?!
Thx.
Vieira.
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