diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-09-28 10:56:12 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-09-28 10:56:12 +0000 |
| commit | 7d49ced0cf64fbb3abf6b4d97dac4806bd1d9ee6 (patch) | |
| tree | 3854e3307400ba2046bc4fa8f0337ea5a0bd729f /EmbeddedPkg/Library/TemplateSerialPortLib | |
| parent | 21de944e0355f706fbbfc8c612b103a3b55dc3cb (diff) | |
| download | edk2-platforms-7d49ced0cf64fbb3abf6b4d97dac4806bd1d9ee6.tar.xz | |
EmbeddedPkg: Introduced 'SerialPortExtLib.h'
EmbeddedPkg/SerialDxe was not allowing to set/get the control of the
Serial connection because the needed functions were not exposed in
SerialPortLib.h.
This commit introduces an additional library to extend the SerialPort
features.
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13773 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'EmbeddedPkg/Library/TemplateSerialPortLib')
| -rw-r--r-- | EmbeddedPkg/Library/TemplateSerialPortLib/TemplateSerialPortLib.c | 67 |
1 files changed, 64 insertions, 3 deletions
diff --git a/EmbeddedPkg/Library/TemplateSerialPortLib/TemplateSerialPortLib.c b/EmbeddedPkg/Library/TemplateSerialPortLib/TemplateSerialPortLib.c index 9cc2b79a8c..0110189abd 100644 --- a/EmbeddedPkg/Library/TemplateSerialPortLib/TemplateSerialPortLib.c +++ b/EmbeddedPkg/Library/TemplateSerialPortLib/TemplateSerialPortLib.c @@ -2,6 +2,7 @@ Serial I/O Port library functions with no library constructor/destructor
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+ 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
@@ -17,8 +18,9 @@ #include <Library/SerialPortLib.h>
+#include <Library/SerialPortExtLib.h>
-/*
+/**
Programmed hardware of Serial port.
@@ -35,6 +37,65 @@ SerialPortInitialize ( }
/**
+ Set the serial device control bits.
+
+ @return Always return EFI_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 EFI_UNSUPPORTED.
+
+**/
+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;
+}
+
+/**
Write data to serial device.
@param Buffer Point of data buffer which need to be written.
@@ -49,7 +110,7 @@ EFIAPI SerialPortWrite (
IN UINT8 *Buffer,
IN UINTN NumberOfBytes
-)
+ )
{
return 0;
}
@@ -70,7 +131,7 @@ EFIAPI SerialPortRead (
OUT UINT8 *Buffer,
IN UINTN NumberOfBytes
-)
+ )
{
return 0;
}
|