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retired PcdNtEmulatorEnable.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7792 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2009-03-04 02:10:20 +00:00
parent 7ee40c6e79
commit ea2d90867a
10 changed files with 25 additions and 54 deletions
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16
IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.c
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@ -805,14 +805,6 @@ IsaSerialReceiveTransmit (
do {
Lsr.Data = READ_LSR (SerialDevice->IsaIo, SerialDevice->BaseAddress);
if (FeaturePcdGet (PcdNtEmulatorEnable)) {
//
// This is required for NT to avoid a forever-spin...
// This would be better if READ_LSR was a polling operation
// that would timeout.
//
Lsr.Bits.THRE = 1;
}
//
// Flush incomming data to prevent a an overrun during a long write
//
@ -1728,17 +1720,13 @@ IsaSerialPortPresent (
WRITE_SCR (SerialDevice->IsaIo, SerialDevice->BaseAddress, 0xAA);
if (READ_SCR (SerialDevice->IsaIo, SerialDevice->BaseAddress) != 0xAA) {
if (!FeaturePcdGet (PcdNtEmulatorEnable)) {
Status = FALSE;
}
Status = FALSE;
}
WRITE_SCR (SerialDevice->IsaIo, SerialDevice->BaseAddress, 0x55);
if (READ_SCR (SerialDevice->IsaIo, SerialDevice->BaseAddress) != 0x55) {
if (!FeaturePcdGet (PcdNtEmulatorEnable)) {
Status = FALSE;
}
Status = FALSE;
}
//
// Restore SCR