diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-03-12 00:40:11 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-03-12 00:40:11 +0000 |
| commit | d38c35f9f76661ec85859cfaa751f664363c131e (patch) | |
| tree | ab14b5c79b38b192b65b95c43ed13c56895a10c1 /EmbeddedPkg/Library/TemplateSerialPortExtLib/TemplateSerialPortExtLib.c | |
| parent | c9bf2a9e2d32bd633be4a020eb0f6872c89801bc (diff) | |
EmbeddedPkg: Introduced a separate SerialPortExtLib library
Formerly only the header was defined and it was expecting the SerialPortExtLib
interface to be implemented by SerialPortLib if supported. This behaviour was
not conform to the EDK2 framework.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14173 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'EmbeddedPkg/Library/TemplateSerialPortExtLib/TemplateSerialPortExtLib.c')
| -rw-r--r-- | EmbeddedPkg/Library/TemplateSerialPortExtLib/TemplateSerialPortExtLib.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/EmbeddedPkg/Library/TemplateSerialPortExtLib/TemplateSerialPortExtLib.c b/EmbeddedPkg/Library/TemplateSerialPortExtLib/TemplateSerialPortExtLib.c new file mode 100644 index 0000000000..5a007c25f6 --- /dev/null +++ b/EmbeddedPkg/Library/TemplateSerialPortExtLib/TemplateSerialPortExtLib.c @@ -0,0 +1,79 @@ +/** @file
+ Extended Serial I/O Port library functions
+
+ Copyright (c) 2012, ARM Ltd. All rights reserved.
+
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Base.h>
+
+#include <Library/SerialPortLib.h>
+#include <Library/SerialPortExtLib.h>
+
+/**
+ Set the serial device control bits.
+
+ @return Always return RETURN_UNSUPPORTED.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetControl (
+ IN UINT32 Control
+ )
+{
+ return RETURN_UNSUPPORTED;
+}
+
+/**
+ Get the serial device control bits.
+
+ @param Control Control signals read from the serial device.
+
+ @retval EFI_SUCCESS The control bits were read from the serial device.
+ @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortGetControl (
+ OUT UINT32 *Control
+ )
+{
+ if (SerialPortPoll ()) {
+ // If a character is pending don't set EFI_SERIAL_INPUT_BUFFER_EMPTY
+ *Control = EFI_SERIAL_OUTPUT_BUFFER_EMPTY;
+ } else {
+ *Control = EFI_SERIAL_INPUT_BUFFER_EMPTY | EFI_SERIAL_OUTPUT_BUFFER_EMPTY;
+ }
+ return EFI_SUCCESS;
+}
+
+/**
+ Set the serial device attributes.
+
+ @return Always return RETURN_UNSUPPORTED.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetAttributes (
+ IN UINT64 BaudRate,
+ IN UINT32 ReceiveFifoDepth,
+ IN UINT32 Timeout,
+ IN EFI_PARITY_TYPE Parity,
+ IN UINT8 DataBits,
+ IN EFI_STOP_BITS_TYPE StopBits
+ )
+{
+ return RETURN_UNSUPPORTED;
+}
+
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