rename

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4723 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdeModulePkg/Universal/Network/SnpDxe/Nvdata.c b/MdeModulePkg/Universal/Network/SnpDxe/Nvdata.c
new file mode 100644 (file)
index 0000000..531a4d6
--- /dev/null
+++ b/MdeModulePkg/Universal/Network/SnpDxe/Nvdata.c
@@ -0,0 +1,185 @@
+/** @file\r
+Copyright (c) 2004 - 2007, Intel Corporation\r
+All rights reserved. This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution.  The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+Module name:\r
+  nvdata.c\r
+\r
+Abstract:\r
+\r
+Revision history:\r
+  2000-Feb-03 M(f)J   Genesis.\r
+\r
+**/\r
+\r
+#include "snp.h"\r
+\r
+\r
+/**\r
+  This routine calls Undi to read the desired number of eeprom bytes.\r
+\r
+  @param  snp          pointer to the snp driver structure\r
+  @param  RegOffset    eeprom register value relative to the base address\r
+  @param  NumBytes     number of bytes to read\r
+  @param  BufferPtr    pointer where to read into\r
+\r
+\r
+**/\r
+STATIC\r
+EFI_STATUS\r
+pxe_nvdata_read (\r
+  IN SNP_DRIVER *snp,\r
+  IN UINTN      RegOffset,\r
+  IN UINTN      NumBytes,\r
+  IN OUT VOID   *BufferPtr\r
+  )\r
+{\r
+  PXE_DB_NVDATA *db;\r
+\r
+  db                  = snp->db;\r
+  snp->cdb.OpCode     = PXE_OPCODE_NVDATA;\r
+\r
+  snp->cdb.OpFlags    = PXE_OPFLAGS_NVDATA_READ;\r
+\r
+  snp->cdb.CPBsize    = PXE_CPBSIZE_NOT_USED;\r
+  snp->cdb.CPBaddr    = PXE_CPBADDR_NOT_USED;\r
+\r
+  snp->cdb.DBsize     = sizeof (PXE_DB_NVDATA);\r
+  snp->cdb.DBaddr     = (UINT64)(UINTN) db;\r
+\r
+  snp->cdb.StatCode   = PXE_STATCODE_INITIALIZE;\r
+  snp->cdb.StatFlags  = PXE_STATFLAGS_INITIALIZE;\r
+  snp->cdb.IFnum      = snp->if_num;\r
+  snp->cdb.Control    = PXE_CONTROL_LAST_CDB_IN_LIST;\r
+\r
+  //\r
+  // Issue UNDI command and check result.\r
+  //\r
+  DEBUG ((EFI_D_NET, "\nsnp->undi.nvdata ()  "));\r
+\r
+  (*snp->issue_undi32_command) ((UINT64)(UINTN) &snp->cdb);\r
+\r
+  switch (snp->cdb.StatCode) {\r
+  case PXE_STATCODE_SUCCESS:\r
+    break;\r
+\r
+  case PXE_STATCODE_UNSUPPORTED:\r
+    DEBUG (\r
+      (EFI_D_NET,\r
+      "\nsnp->undi.nvdata()  %xh:%xh\n",\r
+      snp->cdb.StatFlags,\r
+      snp->cdb.StatCode)\r
+      );\r
+\r
+    return EFI_UNSUPPORTED;\r
+\r
+  default:\r
+    DEBUG (\r
+      (EFI_D_NET,\r
+      "\nsnp->undi.nvdata()  %xh:%xh\n",\r
+      snp->cdb.StatFlags,\r
+      snp->cdb.StatCode)\r
+      );\r
+\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+\r
+  CopyMem (BufferPtr, db->Data.Byte + RegOffset, NumBytes);\r
+\r
+  return EFI_SUCCESS;\r
+}\r
+\r
+\r
+/**\r
+  This is an interface call provided by SNP.\r
+  It does the basic checking on the input parameters and retrieves snp structure\r
+  and then calls the read_nvdata() call which does the actual reading\r
+\r
+  @param  this         context pointer\r
+  @param  ReadOrWrite  true for reading and false for writing\r
+  @param  RegOffset    eeprom register relative to the base\r
+  @param  NumBytes     how many bytes to read\r
+  @param  BufferPtr    address of memory to read into\r
+\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+snp_undi32_nvdata (\r
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *this,\r
+  IN BOOLEAN                     ReadOrWrite,\r
+  IN UINTN                       RegOffset,\r
+  IN UINTN                       NumBytes,\r
+  IN OUT VOID                    *BufferPtr\r
+  )\r
+{\r
+  SNP_DRIVER  *snp;\r
+  EFI_TPL     OldTpl;\r
+  EFI_STATUS  Status;\r
+\r
+  //\r
+  // Get pointer to SNP driver instance for *this.\r
+  //\r
+  if (this == NULL) {\r
+    return EFI_INVALID_PARAMETER;\r
+  }\r
+\r
+  snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);\r
+\r
+  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+\r
+  //\r
+  // Return error if the SNP is not initialized.\r
+  //\r
+  switch (snp->mode.State) {\r
+  case EfiSimpleNetworkInitialized:\r
+    break;\r
+\r
+  case EfiSimpleNetworkStopped:\r
+    Status = EFI_NOT_STARTED;\r
+    goto ON_EXIT;\r
+\r
+  default:\r
+    Status = EFI_DEVICE_ERROR;\r
+    goto ON_EXIT;\r
+  }\r
+  //\r
+  // Return error if non-volatile memory variables are not valid.\r
+  //\r
+  if (snp->mode.NvRamSize == 0 || snp->mode.NvRamAccessSize == 0) {\r
+    Status = EFI_UNSUPPORTED;\r
+    goto ON_EXIT;\r
+  }\r
+  //\r
+  // Check for invalid parameter combinations.\r
+  //\r
+  if ((NumBytes == 0) ||\r
+      (BufferPtr == NULL) ||\r
+      (RegOffset >= snp->mode.NvRamSize) ||\r
+      (RegOffset + NumBytes > snp->mode.NvRamSize) ||\r
+      (NumBytes % snp->mode.NvRamAccessSize != 0) ||\r
+      (RegOffset % snp->mode.NvRamAccessSize != 0)\r
+      ) {\r
+    Status = EFI_INVALID_PARAMETER;\r
+    goto ON_EXIT;\r
+  }\r
+  //\r
+  // check the implementation flags of undi if we can write the nvdata!\r
+  //\r
+  if (!ReadOrWrite) {\r
+    Status = EFI_UNSUPPORTED;\r
+  } else {\r
+    Status = pxe_nvdata_read (snp, RegOffset, NumBytes, BufferPtr);\r
+  }\r
+\r
+ON_EXIT:\r
+  gBS->RestoreTPL (OldTpl);\r
+\r
+  return Status;\r
+}\r