X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdePkg%2FLibrary%2FBaseIoLibIntrinsic%2FIoLibNoIo.c;fp=MdePkg%2FLibrary%2FBaseIoLibIntrinsic%2FIoLibNoIo.c;h=a107136a740f5aa5968373ae323c386471170b6e;hp=0000000000000000000000000000000000000000;hb=089e9c19a8c1775951b4109ea369d7de07c2ad9d;hpb=38e72aa877253a15cb29d427f0ed38742f824bbc

diff --git a/MdePkg/Library/BaseIoLibIntrinsic/IoLibNoIo.c b/MdePkg/Library/BaseIoLibIntrinsic/IoLibNoIo.c
new file mode 100644
index 0000000000..a107136a74
--- /dev/null
+++ b/MdePkg/Library/BaseIoLibIntrinsic/IoLibNoIo.c
@@ -0,0 +1,595 @@
+/** @file
+  I/O library for non I/O read and write access (memory map I/O read and
+  write only) architecture, such as ARM and RISC-V processor.
+
+  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+  Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+  Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
+  Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+//
+// Include common header file for this module.
+//
+#include "BaseIoLibIntrinsicInternal.h"
+
+/**
+  Reads an 8-bit I/O port.
+
+  Reads the 8-bit I/O port specified by Port. The 8-bit read value is returned.
+  This function must guarantee that all I/O read and write operations are
+  serialized.
+
+  If 8-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port  The I/O port to read.
+
+  @return The value read.
+
+**/
+UINT8
+EFIAPI
+IoRead8 (
+  IN      UINTN                     Port
+  )
+{
+  ASSERT (FALSE);
+  return 0;
+}
+
+/**
+  Writes an 8-bit I/O port.
+
+  Writes the 8-bit I/O port specified by Port with the value specified by Value
+  and returns Value. This function must guarantee that all I/O read and write
+  operations are serialized.
+
+  If 8-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port  The I/O port to write.
+  @param  Value The value to write to the I/O port.
+
+  @return The value written the I/O port.
+
+**/
+UINT8
+EFIAPI
+IoWrite8 (
+  IN      UINTN                     Port,
+  IN      UINT8                     Value
+  )
+{
+  ASSERT (FALSE);
+  return Value;
+}
+
+/**
+  Reads a 16-bit I/O port.
+
+  Reads the 16-bit I/O port specified by Port. The 16-bit read value is returned.
+  This function must guarantee that all I/O read and write operations are
+  serialized.
+
+  If 16-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port  The I/O port to read.
+
+  @return The value read.
+
+**/
+UINT16
+EFIAPI
+IoRead16 (
+  IN      UINTN                     Port
+  )
+{
+  ASSERT (FALSE);
+  return 0;
+}
+
+/**
+  Writes a 16-bit I/O port.
+
+  Writes the 16-bit I/O port specified by Port with the value specified by Value
+  and returns Value. This function must guarantee that all I/O read and write
+  operations are serialized.
+
+  If 16-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port  The I/O port to write.
+  @param  Value The value to write to the I/O port.
+
+  @return The value written the I/O port.
+
+**/
+UINT16
+EFIAPI
+IoWrite16 (
+  IN      UINTN                     Port,
+  IN      UINT16                    Value
+  )
+{
+  ASSERT (FALSE);
+  return Value;
+}
+
+/**
+  Reads a 32-bit I/O port.
+
+  Reads the 32-bit I/O port specified by Port. The 32-bit read value is returned.
+  This function must guarantee that all I/O read and write operations are
+  serialized.
+
+  If 32-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port  The I/O port to read.
+
+  @return The value read.
+
+**/
+UINT32
+EFIAPI
+IoRead32 (
+  IN      UINTN                     Port
+  )
+{
+  ASSERT (FALSE);
+  return 0;
+}
+
+/**
+  Writes a 32-bit I/O port.
+
+  Writes the 32-bit I/O port specified by Port with the value specified by Value
+  and returns Value. This function must guarantee that all I/O read and write
+  operations are serialized.
+
+  If 32-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port  The I/O port to write.
+  @param  Value The value to write to the I/O port.
+
+  @return The value written the I/O port.
+
+**/
+UINT32
+EFIAPI
+IoWrite32 (
+  IN      UINTN                     Port,
+  IN      UINT32                    Value
+  )
+{
+  ASSERT (FALSE);
+  return Value;
+}
+
+/**
+  Reads a 64-bit I/O port.
+
+  Reads the 64-bit I/O port specified by Port. The 64-bit read value is returned.
+  This function must guarantee that all I/O read and write operations are
+  serialized.
+
+  If 64-bit I/O port operations are not supported, then ASSERT().
+  If Port is not aligned on a 64-bit boundary, then ASSERT().
+
+  @param  Port  The I/O port to read.
+
+  @return The value read.
+
+**/
+UINT64
+EFIAPI
+IoRead64 (
+  IN      UINTN                     Port
+  )
+{
+  ASSERT (FALSE);
+  return 0;
+}
+
+/**
+  Writes a 64-bit I/O port.
+
+  Writes the 64-bit I/O port specified by Port with the value specified by Value
+  and returns Value. This function must guarantee that all I/O read and write
+  operations are serialized.
+
+  If 64-bit I/O port operations are not supported, then ASSERT().
+  If Port is not aligned on a 64-bit boundary, then ASSERT().
+
+  @param  Port  The I/O port to write.
+  @param  Value The value to write to the I/O port.
+
+  @return The value written to the I/O port.
+
+**/
+UINT64
+EFIAPI
+IoWrite64 (
+  IN      UINTN                     Port,
+  IN      UINT64                    Value
+  )
+{
+  ASSERT (FALSE);
+  return 0;
+}
+
+/**
+  Reads an 8-bit I/O port fifo into a block of memory.
+
+  Reads the 8-bit I/O fifo port specified by Port.
+  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 8-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port    The I/O port to read.
+  @param  Count   The number of times to read I/O port.
+  @param  Buffer  The buffer to store the read data into.
+
+**/
+VOID
+EFIAPI
+IoReadFifo8 (
+  IN      UINTN                     Port,
+  IN      UINTN                     Count,
+  OUT     VOID                      *Buffer
+  )
+{
+  ASSERT (FALSE);
+}
+
+/**
+  Writes a block of memory into an 8-bit I/O port fifo.
+
+  Writes the 8-bit I/O fifo port specified by Port.
+  The port is written Count times, and the write data is
+  retrieved from the provided Buffer.
+
+  This function must guarantee that all I/O write and write operations are
+  serialized.
+
+  If 8-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port    The I/O port to write.
+  @param  Count   The number of times to write I/O port.
+  @param  Buffer  The buffer to retrieve the write data from.
+
+**/
+VOID
+EFIAPI
+IoWriteFifo8 (
+  IN      UINTN                     Port,
+  IN      UINTN                     Count,
+  IN      VOID                      *Buffer
+  )
+{
+  ASSERT (FALSE);
+}
+
+/**
+  Reads a 16-bit I/O port fifo into a block of memory.
+
+  Reads the 16-bit I/O fifo port specified by Port.
+  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 16-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port    The I/O port to read.
+  @param  Count   The number of times to read I/O port.
+  @param  Buffer  The buffer to store the read data into.
+
+**/
+VOID
+EFIAPI
+IoReadFifo16 (
+  IN      UINTN                     Port,
+  IN      UINTN                     Count,
+  OUT     VOID                      *Buffer
+  )
+{
+  ASSERT (FALSE);
+}
+
+/**
+  Writes a block of memory into a 16-bit I/O port fifo.
+
+  Writes the 16-bit I/O fifo port specified by Port.
+  The port is written Count times, and the write data is
+  retrieved from the provided Buffer.
+
+  This function must guarantee that all I/O write and write operations are
+  serialized.
+
+  If 16-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port    The I/O port to write.
+  @param  Count   The number of times to write I/O port.
+  @param  Buffer  The buffer to retrieve the write data from.
+
+**/
+VOID
+EFIAPI
+IoWriteFifo16 (
+  IN      UINTN                     Port,
+  IN      UINTN                     Count,
+  IN      VOID                      *Buffer
+  )
+{
+  ASSERT (FALSE);
+}
+
+/**
+  Reads a 32-bit I/O port fifo into a block of memory.
+
+  Reads the 32-bit I/O fifo port specified by Port.
+  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 32-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port    The I/O port to read.
+  @param  Count   The number of times to read I/O port.
+  @param  Buffer  The buffer to store the read data into.
+
+**/
+VOID
+EFIAPI
+IoReadFifo32 (
+  IN      UINTN                     Port,
+  IN      UINTN                     Count,
+  OUT     VOID                      *Buffer
+  )
+{
+  ASSERT (FALSE);
+}
+
+/**
+  Writes a block of memory into a 32-bit I/O port fifo.
+
+  Writes the 32-bit I/O fifo port specified by Port.
+  The port is written Count times, and the write data is
+  retrieved from the provided Buffer.
+
+  This function must guarantee that all I/O write and write operations are
+  serialized.
+
+  If 32-bit I/O port operations are not supported, then ASSERT().
+
+  @param  Port    The I/O port to write.
+  @param  Count   The number of times to write I/O port.
+  @param  Buffer  The buffer to retrieve the write data from.
+
+**/
+VOID
+EFIAPI
+IoWriteFifo32 (
+  IN      UINTN                     Port,
+  IN      UINTN                     Count,
+  IN      VOID                      *Buffer
+  )
+{
+  ASSERT (FALSE);
+}
+
+/**
+  Reads an 8-bit MMIO register.
+
+  Reads the 8-bit MMIO register specified by Address. The 8-bit read value is
+  returned. This function must guarantee that all MMIO read and write
+  operations are serialized.
+
+  If 8-bit MMIO register operations are not supported, then ASSERT().
+
+  @param  Address The MMIO register to read.
+
+  @return The value read.
+
+**/
+UINT8
+EFIAPI
+MmioRead8 (
+  IN      UINTN                     Address
+  )
+{
+  UINT8                             Value;
+
+  Value = *(volatile UINT8*)Address;
+  return Value;
+}
+
+/**
+  Writes an 8-bit MMIO register.
+
+  Writes the 8-bit MMIO register specified by Address with the value specified
+  by Value and returns Value. This function must guarantee that all MMIO read
+  and write operations are serialized.
+
+  If 8-bit MMIO register operations are not supported, then ASSERT().
+
+  @param  Address The MMIO register to write.
+  @param  Value   The value to write to the MMIO register.
+
+**/
+UINT8
+EFIAPI
+MmioWrite8 (
+  IN      UINTN                     Address,
+  IN      UINT8                     Value
+  )
+{
+  *(volatile UINT8*)Address = Value;
+  return Value;
+}
+
+/**
+  Reads a 16-bit MMIO register.
+
+  Reads the 16-bit MMIO register specified by Address. The 16-bit read value is
+  returned. This function must guarantee that all MMIO read and write
+  operations are serialized.
+
+  If 16-bit MMIO register operations are not supported, then ASSERT().
+
+  @param  Address The MMIO register to read.
+
+  @return The value read.
+
+**/
+UINT16
+EFIAPI
+MmioRead16 (
+  IN      UINTN                     Address
+  )
+{
+  UINT16                            Value;
+
+  ASSERT ((Address & 1) == 0);
+  Value = *(volatile UINT16*)Address;
+  return Value;
+}
+
+/**
+  Writes a 16-bit MMIO register.
+
+  Writes the 16-bit MMIO register specified by Address with the value specified
+  by Value and returns Value. This function must guarantee that all MMIO read
+  and write operations are serialized.
+
+  If 16-bit MMIO register operations are not supported, then ASSERT().
+
+  @param  Address The MMIO register to write.
+  @param  Value   The value to write to the MMIO register.
+
+**/
+UINT16
+EFIAPI
+MmioWrite16 (
+  IN      UINTN                     Address,
+  IN      UINT16                    Value
+  )
+{
+  ASSERT ((Address & 1) == 0);
+  *(volatile UINT16*)Address = Value;
+  return Value;
+}
+
+/**
+  Reads a 32-bit MMIO register.
+
+  Reads the 32-bit MMIO register specified by Address. The 32-bit read value is
+  returned. This function must guarantee that all MMIO read and write
+  operations are serialized.
+
+  If 32-bit MMIO register operations are not supported, then ASSERT().
+
+  @param  Address The MMIO register to read.
+
+  @return The value read.
+
+**/
+UINT32
+EFIAPI
+MmioRead32 (
+  IN      UINTN                     Address
+  )
+{
+  UINT32                            Value;
+
+  ASSERT ((Address & 3) == 0);
+  Value = *(volatile UINT32*)Address;
+  return Value;
+}
+
+/**
+  Writes a 32-bit MMIO register.
+
+  Writes the 32-bit MMIO register specified by Address with the value specified
+  by Value and returns Value. This function must guarantee that all MMIO read
+  and write operations are serialized.
+
+  If 32-bit MMIO register operations are not supported, then ASSERT().
+
+  @param  Address The MMIO register to write.
+  @param  Value   The value to write to the MMIO register.
+
+**/
+UINT32
+EFIAPI
+MmioWrite32 (
+  IN      UINTN                     Address,
+  IN      UINT32                    Value
+  )
+{
+  ASSERT ((Address & 3) == 0);
+  *(volatile UINT32*)Address = Value;
+  return Value;
+}
+
+/**
+  Reads a 64-bit MMIO register.
+
+  Reads the 64-bit MMIO register specified by Address. The 64-bit read value is
+  returned. This function must guarantee that all MMIO read and write
+  operations are serialized.
+
+  If 64-bit MMIO register operations are not supported, then ASSERT().
+
+  @param  Address The MMIO register to read.
+
+  @return The value read.
+
+**/
+UINT64
+EFIAPI
+MmioRead64 (
+  IN      UINTN                     Address
+  )
+{
+  UINT64                            Value;
+
+  ASSERT ((Address & 7) == 0);
+  Value = *(volatile UINT64*)Address;
+  return Value;
+}
+
+/**
+  Writes a 64-bit MMIO register.
+
+  Writes the 64-bit MMIO register specified by Address with the value specified
+  by Value and returns Value. This function must guarantee that all MMIO read
+  and write operations are serialized.
+
+  If 64-bit MMIO register operations are not supported, then ASSERT().
+
+  @param  Address The MMIO register to write.
+  @param  Value   The value to write to the MMIO register.
+
+**/
+UINT64
+EFIAPI
+MmioWrite64 (
+  IN      UINTN                     Address,
+  IN      UINT64                    Value
+  )
+{
+  ASSERT ((Address & 7) == 0);
+  *(volatile UINT64*)Address = Value;
+  return Value;
+}
+