ArmVirtPkg: Move the FdtSerialPortAddressLib to OvmfPkg

Move the FdtSerialPortAddressLib to Ovmfpkg so that other ARCH can
easily use it.

Build-tested only (with "ArmVirtQemu.dsc and OvmfPkgX64.dsc").

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>

2 files changed, 0 insertions, 283 deletions

diff --git a/ArmVirtPkg/Library/FdtSerialPortAddressLib/FdtSerialPortAddressLib.c b/ArmVirtPkg/Library/FdtSerialPortAddressLib/FdtSerialPortAddressLib.c
deleted file mode 100644
index f6508e0989..0000000000
--- a/ArmVirtPkg/Library/FdtSerialPortAddressLib/FdtSerialPortAddressLib.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/** @file

-  Determine the base addresses of serial ports from the Device Tree.

-

-  Copyright (C) Red Hat

-  Copyright (c) 2011 - 2023, Arm Ltd. All rights reserved.<BR>

-  Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>

-  Copyright (c) 2014 - 2020, Linaro Ltd. All rights reserved.<BR>

-  Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>

-

-  SPDX-License-Identifier: BSD-2-Clause-Patent

-**/

-

-#include <Library/BaseLib.h>

-#include <Library/FdtSerialPortAddressLib.h>

-#include <libfdt.h>

-

-/**

-  Read the "reg" property of Node in DeviceTree as a UINT64 base address.

-

-  @param[in] DeviceTree    The flat device tree (FDT) to scan.

-

-  @param[in] Node          The node to read the "reg" property of.

-

-  @param[out] BaseAddress  On success, the base address read out of Node's "reg"

-                           property. On error, not modified.

-

-  @retval RETURN_DEVICE_ERROR     Node has a "status" property with value

-                                  different from "okay".

-

-  @retval RETURN_NOT_FOUND        Node does not have a "reg" property.

-

-  @retval RETURN_BAD_BUFFER_SIZE  The size of Node's "reg" property is not 16

-                                  bytes.

-

-  @retval RETURN_SUCCESS          BaseAddress has been populated.

-**/

-STATIC

-RETURN_STATUS

-GetBaseAddress (

-  IN  CONST VOID  *DeviceTree,

-  IN  INT32       Node,

-  OUT UINT64      *BaseAddress

-  )

-{

-  CONST CHAR8  *NodeStatus;

-  CONST VOID   *RegProp;

-  INT32        PropSize;

-

-  NodeStatus = fdt_getprop (DeviceTree, Node, "status", NULL);

-  if ((NodeStatus != NULL) && (AsciiStrCmp (NodeStatus, "okay") != 0)) {

-    return RETURN_DEVICE_ERROR;

-  }

-

-  RegProp = fdt_getprop (DeviceTree, Node, "reg", &PropSize);

-  if (RegProp == NULL) {

-    return RETURN_NOT_FOUND;

-  }

-

-  if (PropSize != 16) {

-    return RETURN_BAD_BUFFER_SIZE;

-  }

-

-  *BaseAddress = fdt64_to_cpu (ReadUnaligned64 (RegProp));

-  return RETURN_SUCCESS;

-}

-

-/**

-  Collect the first ARRAY_SIZE (Ports->BaseAddress) serial ports into Ports from

-  DeviceTree.

-

-  @param[in] DeviceTree  The flat device tree (FDT) to scan.

-

-  @param[in] Compatible  Look for Compatible in the "compatible" property of the

-                         scanned nodes.

-

-  @param[out] Ports      On successful return, Ports->NumberOfPorts contains the

-                         number of serial ports found; it is (a) positive and

-                         (b) at most ARRAY_SIZE (Ports->BaseAddress). If the FDT

-                         had more serial ports, those are not reported. On

-                         error, the contents of Ports are indeterminate.

-

-  @retval RETURN_INVALID_PARAMETER  DeviceTree does not point to a valid FDT

-                                    header.

-

-  @retval RETURN_NOT_FOUND          No compatible and enabled serial port has

-                                    been found.

-

-  @retval RETURN_SUCCESS            At least one compatible and enabled serial

-                                    port has been found; Ports has been filled

-                                    in.

-**/

-RETURN_STATUS

-EFIAPI

-FdtSerialGetPorts (

-  IN  CONST VOID        *DeviceTree,

-  IN  CONST CHAR8       *Compatible,

-  OUT FDT_SERIAL_PORTS  *Ports

-  )

-{

-  INT32  Node;

-

-  if (fdt_check_header (DeviceTree) != 0) {

-    return RETURN_INVALID_PARAMETER;

-  }

-

-  Ports->NumberOfPorts = 0;

-  Node                 = fdt_next_node (DeviceTree, 0, NULL);

-  while ((Node > 0) &&

-         (Ports->NumberOfPorts < ARRAY_SIZE (Ports->BaseAddress)))

-  {

-    CONST CHAR8  *CompatProp;

-    INT32        PropSize;

-

-    CompatProp = fdt_getprop (DeviceTree, Node, "compatible", &PropSize);

-    if (CompatProp != NULL) {

-      CONST CHAR8  *CompatItem;

-

-      CompatItem = CompatProp;

-      while ((CompatItem < CompatProp + PropSize) &&

-             (AsciiStrCmp (CompatItem, Compatible) != 0))

-      {

-        CompatItem += AsciiStrLen (CompatItem) + 1;

-      }

-

-      if (CompatItem < CompatProp + PropSize) {

-        RETURN_STATUS  Status;

-        UINT64         BaseAddress;

-

-        Status = GetBaseAddress (DeviceTree, Node, &BaseAddress);

-        if (!RETURN_ERROR (Status)) {

-          Ports->BaseAddress[Ports->NumberOfPorts++] = BaseAddress;

-        }

-      }

-    }

-

-    Node = fdt_next_node (DeviceTree, Node, NULL);

-  }

-

-  return Ports->NumberOfPorts > 0 ? RETURN_SUCCESS : RETURN_NOT_FOUND;

-}

-

-/**

-  Fetch the base address of the serial port identified in the "stdout-path"

-  property of the "/chosen" node in DeviceTree.

-

-  @param[in] DeviceTree    The flat device tree (FDT) to scan.

-

-  @param[out] BaseAddress  On success, the base address of the preferred serial

-                           port (to be used as console). On error, BaseAddress

-                           is not modified.

-

-  @retval RETURN_INVALID_PARAMETER  DeviceTree does not point to a valid FDT

-                                    header.

-

-  @retval RETURN_NOT_FOUND          No enabled console port has been found.

-

-  @retval RETURN_PROTOCOL_ERROR     The first (or only) node path in the

-                                    "stdout-path" property is an empty string.

-

-  @retval RETURN_PROTOCOL_ERROR     The console port has been found in the FDT,

-                                    but its base address is not correctly

-                                    represented.

-

-  @retval RETURN_SUCCESS            BaseAddress has been populated.

-**/

-RETURN_STATUS

-EFIAPI

-FdtSerialGetConsolePort (

-  IN  CONST VOID  *DeviceTree,

-  OUT UINT64      *BaseAddress

-  )

-{

-  INT32          ChosenNode;

-  CONST CHAR8    *StdoutPathProp;

-  INT32          PropSize;

-  CONST CHAR8    *StdoutPathEnd;

-  UINTN          StdoutPathLength;

-  INT32          ConsoleNode;

-  RETURN_STATUS  Status;

-

-  if (fdt_check_header (DeviceTree) != 0) {

-    return RETURN_INVALID_PARAMETER;

-  }

-

-  ChosenNode = fdt_path_offset (DeviceTree, "/chosen");

-  if (ChosenNode < 0) {

-    return RETURN_NOT_FOUND;

-  }

-

-  StdoutPathProp = fdt_getprop (

-                     DeviceTree,

-                     ChosenNode,

-                     "stdout-path",

-                     &PropSize

-                     );

-  if (StdoutPathProp == NULL) {

-    return RETURN_NOT_FOUND;

-  }

-

-  //

-  // If StdoutPathProp contains a colon (":"), then the colon terminates the

-  // path we're interested in.

-  //

-  StdoutPathEnd = AsciiStrStr (StdoutPathProp, ":");

-  if (StdoutPathEnd == NULL) {

-    StdoutPathLength = PropSize - 1;

-  } else {

-    StdoutPathLength = StdoutPathEnd - StdoutPathProp;

-  }

-

-  if (StdoutPathLength == 0) {

-    return RETURN_PROTOCOL_ERROR;

-  }

-

-  if (StdoutPathProp[0] == '/') {

-    //

-    // StdoutPathProp starts with an absolute node path.

-    //

-    ConsoleNode = fdt_path_offset_namelen (

-                    DeviceTree,

-                    StdoutPathProp,

-                    (INT32)StdoutPathLength

-                    );

-  } else {

-    //

-    // StdoutPathProp starts with an alias.

-    //

-    CONST CHAR8  *ResolvedStdoutPath;

-

-    ResolvedStdoutPath = fdt_get_alias_namelen (

-                           DeviceTree,

-                           StdoutPathProp,

-                           (INT32)StdoutPathLength

-                           );

-    if (ResolvedStdoutPath == NULL) {

-      return RETURN_NOT_FOUND;

-    }

-

-    ConsoleNode = fdt_path_offset (DeviceTree, ResolvedStdoutPath);

-  }

-

-  if (ConsoleNode < 0) {

-    return RETURN_NOT_FOUND;

-  }

-

-  Status = GetBaseAddress (DeviceTree, ConsoleNode, BaseAddress);

-  switch (Status) {

-    case RETURN_NOT_FOUND:

-    case RETURN_BAD_BUFFER_SIZE:

-      return RETURN_PROTOCOL_ERROR;

-    case RETURN_SUCCESS:

-      return RETURN_SUCCESS;

-    default:

-      return RETURN_NOT_FOUND;

-  }

-}

diff --git a/ArmVirtPkg/Library/FdtSerialPortAddressLib/FdtSerialPortAddressLib.inf b/ArmVirtPkg/Library/FdtSerialPortAddressLib/FdtSerialPortAddressLib.inf
deleted file mode 100644
index ae6d0d374b..0000000000
--- a/ArmVirtPkg/Library/FdtSerialPortAddressLib/FdtSerialPortAddressLib.inf
+++ /dev/null
@@ -1,27 +0,0 @@
-## @file

-# Determine the base addresses of serial ports from the Device Tree.

-#

-# Copyright (C) Red Hat

-#

-# SPDX-License-Identifier: BSD-2-Clause-Patent

-##

-

-[Defines]

-  INF_VERSION    = 1.27

-  BASE_NAME      = FdtSerialPortAddressLib

-  FILE_GUID      = AEBE813B-25EA-40E5-95C4-2B864FE1E951

-  MODULE_TYPE    = BASE

-  VERSION_STRING = 1.0

-  LIBRARY_CLASS  = FdtSerialPortAddressLib

-

-[Sources]

-  FdtSerialPortAddressLib.c

-

-[Packages]

-  ArmVirtPkg/ArmVirtPkg.dec

-  EmbeddedPkg/EmbeddedPkg.dec

-  MdePkg/MdePkg.dec

-

-[LibraryClasses]

-  BaseLib

-  FdtLib