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Diffstat (limited to 'roms/edk2/MdePkg/Library/DxeIoLibCpuIo2/DxeCpuIo2LibInternal.h')
| -rw-r--r-- | roms/edk2/MdePkg/Library/DxeIoLibCpuIo2/DxeCpuIo2LibInternal.h | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/DxeIoLibCpuIo2/DxeCpuIo2LibInternal.h b/roms/edk2/MdePkg/Library/DxeIoLibCpuIo2/DxeCpuIo2LibInternal.h new file mode 100644 index 000000000..b6797c358 --- /dev/null +++ b/roms/edk2/MdePkg/Library/DxeIoLibCpuIo2/DxeCpuIo2LibInternal.h @@ -0,0 +1,166 @@ +/** @file
+ Internal include file of DXE CPU IO2 Library.
+
+ Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _DXE_CPUIO2_LIB_INTERNAL_H_
+#define _DXE_CPUIO2_LIB_INTERNAL_H_
+
+#include <PiDxe.h>
+
+#include <Protocol/CpuIo2.h>
+
+#include <Library/IoLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseLib.h>
+
+
+/**
+ Reads registers in the EFI CPU I/O space.
+
+ Reads the I/O port specified by Port with registers width specified by Width.
+ The read value is returned.
+
+ This function must guarantee that all I/O read and write operations are serialized.
+ If such operations are not supported, then ASSERT().
+
+ @param Port The base address of the I/O operation.
+ The caller is responsible for aligning the Address if required.
+ @param Width The width of the I/O operation.
+
+ @return Data read from registers in the EFI CPU I/O space.
+
+**/
+UINT64
+EFIAPI
+IoReadWorker (
+ IN UINTN Port,
+ IN EFI_CPU_IO_PROTOCOL_WIDTH Width
+ );
+
+/**
+ Writes registers in the EFI CPU I/O space.
+
+ Writes the I/O port specified by Port with registers width and value specified by Width
+ and Data respectively. Data is returned.
+
+ This function must guarantee that all I/O read and write operations are serialized.
+ If such operations are not supported, then ASSERT().
+
+ @param Port The base address of the I/O operation.
+ The caller is responsible for aligning the Address if required.
+ @param Width The width of the I/O operation.
+ @param Data The value to write to the I/O port.
+
+ @return The parameter of Data.
+
+**/
+UINT64
+EFIAPI
+IoWriteWorker (
+ IN UINTN Port,
+ IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
+ IN UINT64 Data
+ );
+
+/**
+ Reads registers in the EFI CPU I/O space.
+
+ Reads the I/O port specified by Port with registers width specified by Width.
+ The port is read Count times, and the read data is stored in the provided Buffer.
+
+ This function must guarantee that all I/O read and write operations are serialized.
+ If such operations are not supported, then ASSERT().
+
+ @param Port The base address of the I/O operation.
+ The caller is responsible for aligning the Address if required.
+ @param Width The width of the I/O operation.
+ @param Count The number of times to read I/O port.
+ @param Buffer The buffer to store the read data into.
+
+**/
+VOID
+EFIAPI
+IoReadFifoWorker (
+ IN UINTN Port,
+ IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
+ IN UINTN Count,
+ IN VOID *Buffer
+ );
+
+/**
+ Writes registers in the EFI CPU I/O space.
+
+ Writes the I/O port specified by Port with registers width specified by Width.
+ The port is written Count times, and the write data is retrieved from the provided Buffer.
+
+ This function must guarantee that all I/O read and write operations are serialized.
+ If such operations are not supported, then ASSERT().
+
+ @param Port The base address of the I/O operation.
+ The caller is responsible for aligning the Address if required.
+ @param Width The width of the I/O operation.
+ @param Count The number of times to write I/O port.
+ @param Buffer The buffer to store the read data into.
+
+**/
+VOID
+EFIAPI
+IoWriteFifoWorker (
+ IN UINTN Port,
+ IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
+ IN UINTN Count,
+ IN VOID *Buffer
+ );
+
+/**
+ Reads memory-mapped registers in the EFI system memory space.
+
+ Reads the MMIO registers specified by Address with registers width specified by Width.
+ The read value is returned. If such operations are not supported, then ASSERT().
+ This function must guarantee that all MMIO read and write operations are serialized.
+
+ @param Address The MMIO register to read.
+ The caller is responsible for aligning the Address if required.
+ @param Width The width of the I/O operation.
+
+ @return Data read from registers in the EFI system memory space.
+
+**/
+UINT64
+EFIAPI
+MmioReadWorker (
+ IN UINTN Address,
+ IN EFI_CPU_IO_PROTOCOL_WIDTH Width
+ );
+
+/**
+ Writes memory-mapped registers in the EFI system memory space.
+
+ Writes the MMIO registers specified by Address with registers width and value specified by Width
+ and Data respectively. Data is returned. If such operations are not supported, then ASSERT().
+ This function must guarantee that all MMIO read and write operations are serialized.
+
+ @param Address The MMIO register to read.
+ The caller is responsible for aligning the Address if required.
+ @param Width The width of the I/O operation.
+ @param Data The value to write to the I/O port.
+
+ @return Data read from registers in the EFI system memory space.
+
+**/
+UINT64
+EFIAPI
+MmioWriteWorker (
+ IN UINTN Address,
+ IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
+ IN UINT64 Data
+ );
+
+#endif
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