diff options
Diffstat (limited to 'DynamicTablesPkg/Library/Acpi/Common/AcpiDbg2Lib/Arm/ArmDbg2Generator.c')
| -rw-r--r-- | DynamicTablesPkg/Library/Acpi/Common/AcpiDbg2Lib/Arm/ArmDbg2Generator.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/DynamicTablesPkg/Library/Acpi/Common/AcpiDbg2Lib/Arm/ArmDbg2Generator.c b/DynamicTablesPkg/Library/Acpi/Common/AcpiDbg2Lib/Arm/ArmDbg2Generator.c new file mode 100644 index 0000000000..a063f49829 --- /dev/null +++ b/DynamicTablesPkg/Library/Acpi/Common/AcpiDbg2Lib/Arm/ArmDbg2Generator.c @@ -0,0 +1,67 @@ +/** @file
+ Arm DBG2 Table Generator
+
+ Copyright (c) 2024, Arm Limited. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ @par Reference(s):
+ - Microsoft Debug Port Table 2 (DBG2) Specification - December 10, 2015.
+**/
+
+#include <ConfigurationManagerObject.h>
+#include <Library/PL011UartLib.h>
+#include <Protocol/SerialIo.h>
+#include "Dbg2Generator.h"
+
+/**
+ Initialise the serial port to the specified settings.
+ The serial port is re-configured only if the specified settings
+ are different from the current settings.
+ All unspecified settings will be set to the default values.
+
+ @param SerialPortInfo CM_ARCH_COMMON_SERIAL_PORT_INFO object describing
+ the serial port.
+ @param BaudRate The baud rate of the serial device. If the
+ baud rate is not supported, the speed will be
+ reduced 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. Value of 0 will use the
+ device's default FIFO depth.
+ @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 RETURN_SUCCESS All attributes were set correctly on the
+ serial device.
+ @retval RETURN_INVALID_PARAMETER One or more of the attributes has an
+ unsupported value.
+**/
+RETURN_STATUS
+EFIAPI
+Dbg2InitializePort (
+ IN CONST CM_ARCH_COMMON_SERIAL_PORT_INFO *SerialPortInfo,
+ IN OUT UINT64 *BaudRate,
+ IN OUT UINT32 *ReceiveFifoDepth,
+ IN OUT EFI_PARITY_TYPE *Parity,
+ IN OUT UINT8 *DataBits,
+ IN OUT EFI_STOP_BITS_TYPE *StopBits
+ )
+{
+ return PL011UartInitializePort (
+ (UINTN)SerialPortInfo->BaseAddress,
+ SerialPortInfo->Clock,
+ BaudRate,
+ ReceiveFifoDepth,
+ Parity,
+ DataBits,
+ StopBits
+ );
+}
|