diff options
Diffstat (limited to 'ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortExtLib.c')
-rw-r--r-- | ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortExtLib.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortExtLib.c b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortExtLib.c new file mode 100644 index 0000000000..9bfe42e60c --- /dev/null +++ b/ArmPlatformPkg/Library/PL011SerialPortLib/PL011SerialPortExtLib.c @@ -0,0 +1,103 @@ +/** @file
+ Serial I/O Port library functions with no library constructor/destructor
+
+ Copyright (c) 2012, ARM Ltd. All rights reserved.<BR>
+
+ 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/IoLib.h>
+#include <Library/PcdLib.h>
+#include <Library/SerialPortExtLib.h>
+
+#include <Drivers/PL011Uart.h>
+
+/**
+ Set new attributes to PL011.
+
+ @param BaudRate The baud rate of the serial device. If the baud rate is not supported,
+ the speed will be reduced down to the nearest supported one and the
+ variable's value will be updated accordingly.
+ @param ReceiveFifoDepth The number of characters the device will buffer on input. If the specified
+ value is not supported, the variable's value will be reduced down to the
+ nearest supported one.
+ @param Timeout If applicable, the number of microseconds the device will wait
+ before timing out a Read or a Write operation.
+ @param Parity If applicable, this is the EFI_PARITY_TYPE that is computed or checked
+ as each character is transmitted or received. If the device does not
+ support parity, the value is the default parity value.
+ @param DataBits The number of data bits in each character
+ @param StopBits If applicable, the EFI_STOP_BITS_TYPE number of stop bits per character.
+ If the device does not support stop bits, the value is the default stop
+ bit value.
+
+ @retval EFI_SUCCESS All attributes were set correctly on the serial device.
+ @retval EFI_INVALID_PARAMETERS One or more of the attributes has an unsupported value.
+
+**/
+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 PL011UartInitializePort (
+ (UINTN)PcdGet64 (PcdSerialRegisterBase),
+ BaudRate,
+ ReceiveFifoDepth,
+ Parity,
+ DataBits,
+ StopBits);
+}
+
+/**
+ Set the serial device control bits.
+
+ @param Control Control bits which are to be set on the serial device.
+
+ @retval EFI_SUCCESS The new control bits were set on the serial device.
+ @retval EFI_UNSUPPORTED The serial device does not support this operation.
+ @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortSetControl (
+ IN UINT32 Control
+ )
+{
+ return PL011UartSetControl ((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);
+}
+
+/**
+ 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
+ )
+{
+ return PL011UartGetControl ((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);
+}
+
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