Revision: 19022
http://sourceforge.net/p/edk2/code/19022
Author: vanjeff
Date: 2015-11-30 03:20:39 +0000 (Mon, 30 Nov 2015)
Log Message:
-----------
OvmfPkg XenConsoleSerialPortLib: Implement Get(Set)Control/SetAttributes
(Sync patch r18972 from main trunk.)
Cc: Michael D Kinney <[email protected]>
Cc: Liming Gao <[email protected]>
Cc: Jordan Justen <[email protected]>
Cc: Laszlo Ersek <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <[email protected]>
Reviewed-by: Laszlo Ersek <[email protected]>
Revision Links:
--------------
http://sourceforge.net/p/edk2/code/18972
Modified Paths:
--------------
branches/UDK2015/OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.c
Modified:
branches/UDK2015/OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.c
===================================================================
---
branches/UDK2015/OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.c
2015-11-30 03:20:15 UTC (rev 19021)
+++
branches/UDK2015/OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.c
2015-11-30 03:20:39 UTC (rev 19022)
@@ -2,6 +2,7 @@
Xen console SerialPortLib instance
Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>
+ Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
@@ -205,3 +206,97 @@
return mXenConsoleInterface &&
mXenConsoleInterface->in_cons != mXenConsoleInterface->in_prod;
}
+
+/**
+ Sets the control bits on a serial device.
+
+ @param Control Sets the bits of Control that are settable.
+
+ @retval RETURN_SUCCESS The new control bits were set on the serial
device.
+ @retval RETURN_UNSUPPORTED The serial device does not support this
operation.
+ @retval RETURN_DEVICE_ERROR The serial device is not functioning correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetControl (
+ IN UINT32 Control
+ )
+{
+ return RETURN_UNSUPPORTED;
+}
+
+/**
+ Retrieve the status of the control bits on a serial device.
+
+ @param Control A pointer to return the current control
signals from the serial device.
+
+ @retval RETURN_SUCCESS The control bits were read from the serial
device.
+ @retval RETURN_UNSUPPORTED The serial device does not support this
operation.
+ @retval RETURN_DEVICE_ERROR The serial device is not functioning correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortGetControl (
+ OUT UINT32 *Control
+ )
+{
+ if (!mXenConsoleInterface) {
+ return RETURN_UNSUPPORTED;
+ }
+
+ *Control = 0;
+ if (!SerialPortPoll ()) {
+ *Control = EFI_SERIAL_INPUT_BUFFER_EMPTY;
+ }
+ return RETURN_SUCCESS;
+}
+
+/**
+ Sets the baud rate, receive FIFO depth, transmit/receice time out, parity,
+ data bits, and stop bits on a serial device.
+
+ @param BaudRate The requested baud rate. A BaudRate value of 0
will use the
+ device's default interface speed.
+ On output, the value actually set.
+ @param ReveiveFifoDepth The requested depth of the FIFO on the receive
side of the
+ serial interface. A ReceiveFifoDepth value of 0
will use
+ the device's default FIFO depth.
+ On output, the value actually set.
+ @param Timeout The requested time out for a single character in
microseconds.
+ This timeout applies to both the transmit and
receive side of the
+ interface. A Timeout value of 0 will use the
device's default time
+ out value.
+ On output, the value actually set.
+ @param Parity The type of parity to use on this serial device. A
Parity value of
+ DefaultParity will use the device's default parity
value.
+ On output, the value actually set.
+ @param DataBits The number of data bits to use on the serial
device. A DataBits
+ vaule of 0 will use the device's default data bit
setting.
+ On output, the value actually set.
+ @param StopBits The number of stop bits to use on this serial
device. A StopBits
+ value of DefaultStopBits will use the device's
default number of
+ stop bits.
+ On output, the value actually set.
+
+ @retval RETURN_SUCCESS The new attributes were set on the serial
device.
+ @retval RETURN_UNSUPPORTED The serial device does not support this
operation.
+ @retval RETURN_INVALID_PARAMETER One or more of the attributes has an
unsupported value.
+ @retval RETURN_DEVICE_ERROR The serial device is not functioning
correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetAttributes (
+ IN OUT UINT64 *BaudRate,
+ IN OUT UINT32 *ReceiveFifoDepth,
+ IN OUT UINT32 *Timeout,
+ IN OUT EFI_PARITY_TYPE *Parity,
+ IN OUT UINT8 *DataBits,
+ IN OUT EFI_STOP_BITS_TYPE *StopBits
+ )
+{
+ return RETURN_UNSUPPORTED;
+}
+
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