NetworkPkg: Move Network library and drivers from MdeModulePkg to NetworkPkg

[mirror_edk2.git] / NetworkPkg / SnpDxe / Start.c

diff --git a/NetworkPkg/SnpDxe/Start.c b/NetworkPkg/SnpDxe/Start.c
new file mode 100644 (file)
index 0000000..033ca22
--- /dev/null
+++ b/NetworkPkg/SnpDxe/Start.c
@@ -0,0 +1,162 @@
+/** @file\r
+    Implementation of starting a network adapter.\r
+\r
+Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
+\r
+**/\r
+\r
+#include "Snp.h"\r
+\r
+\r
+/**\r
+  Call UNDI to start the interface and changes the snp state.\r
+\r
+  @param  Snp                    pointer to snp driver structure.\r
+\r
+  @retval EFI_SUCCESS            UNDI is started successfully.\r
+  @retval EFI_DEVICE_ERROR       UNDI could not be started.\r
+\r
+**/\r
+EFI_STATUS\r
+PxeStart (\r
+  IN SNP_DRIVER *Snp\r
+  )\r
+{\r
+  PXE_CPB_START_31  *Cpb31;\r
+\r
+  Cpb31  = Snp->Cpb;\r
+  //\r
+  // Initialize UNDI Start CDB for H/W UNDI\r
+  //\r
+  Snp->Cdb.OpCode     = PXE_OPCODE_START;\r
+  Snp->Cdb.OpFlags    = PXE_OPFLAGS_NOT_USED;\r
+  Snp->Cdb.CPBsize    = PXE_CPBSIZE_NOT_USED;\r
+  Snp->Cdb.DBsize     = PXE_DBSIZE_NOT_USED;\r
+  Snp->Cdb.CPBaddr    = PXE_CPBADDR_NOT_USED;\r
+  Snp->Cdb.DBaddr     = PXE_DBADDR_NOT_USED;\r
+  Snp->Cdb.StatCode   = PXE_STATCODE_INITIALIZE;\r
+  Snp->Cdb.StatFlags  = PXE_STATFLAGS_INITIALIZE;\r
+  Snp->Cdb.IFnum      = Snp->IfNum;\r
+  Snp->Cdb.Control    = PXE_CONTROL_LAST_CDB_IN_LIST;\r
+\r
+  //\r
+  // Make changes to H/W UNDI Start CDB if this is\r
+  // a S/W UNDI.\r
+  //\r
+  if (Snp->IsSwUndi) {\r
+    Snp->Cdb.CPBsize  = (UINT16) sizeof (PXE_CPB_START_31);\r
+    Snp->Cdb.CPBaddr  = (UINT64)(UINTN) Cpb31;\r
+\r
+    Cpb31->Delay     = (UINT64)(UINTN) &SnpUndi32CallbackDelay;\r
+    Cpb31->Block     = (UINT64)(UINTN) &SnpUndi32CallbackBlock;\r
+\r
+    //\r
+    // Virtual == Physical.  This can be set to zero.\r
+    //\r
+    Cpb31->Virt2Phys = (UINT64)(UINTN) 0;\r
+    Cpb31->Mem_IO    = (UINT64)(UINTN) &SnpUndi32CallbackMemio;\r
+\r
+    Cpb31->Map_Mem   = (UINT64)(UINTN) &SnpUndi32CallbackMap;\r
+    Cpb31->UnMap_Mem = (UINT64)(UINTN) &SnpUndi32CallbackUnmap;\r
+    Cpb31->Sync_Mem  = (UINT64)(UINTN) &SnpUndi32CallbackSync;\r
+\r
+    Cpb31->Unique_ID = (UINT64)(UINTN) Snp;\r
+  }\r
+  //\r
+  // Issue UNDI command and check result.\r
+  //\r
+  DEBUG ((EFI_D_NET, "\nsnp->undi.start()  "));\r
+\r
+  (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r
+\r
+  if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {\r
+    //\r
+    // UNDI could not be started. Return UNDI error.\r
+    //\r
+    DEBUG (\r
+      (EFI_D_ERROR,\r
+      "\nsnp->undi.start()  %xh:%xh\n",\r
+      Snp->Cdb.StatCode,\r
+      Snp->Cdb.StatFlags)\r
+      );\r
+\r
+    return EFI_DEVICE_ERROR;\r
+  }\r
+  //\r
+  // Set simple network state to Started and return success.\r
+  //\r
+  Snp->Mode.State = EfiSimpleNetworkStarted;\r
+\r
+  return EFI_SUCCESS;\r
+}\r
+\r
+\r
+/**\r
+  Change the state of a network interface from "stopped" to "started."\r
+\r
+  This function starts a network interface. If the network interface successfully\r
+  starts, then EFI_SUCCESS will be returned.\r
+\r
+  @param  This                   A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.\r
+\r
+  @retval EFI_SUCCESS            The network interface was started.\r
+  @retval EFI_ALREADY_STARTED    The network interface is already in the started state.\r
+  @retval EFI_INVALID_PARAMETER  This parameter was NULL or did not point to a valid\r
+                                 EFI_SIMPLE_NETWORK_PROTOCOL structure.\r
+  @retval EFI_DEVICE_ERROR       The command could not be sent to the network interface.\r
+  @retval EFI_UNSUPPORTED        This function is not supported by the network interface.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SnpUndi32Start (\r
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *This\r
+  )\r
+{\r
+  SNP_DRIVER  *Snp;\r
+  EFI_STATUS  Status;\r
+  UINTN       Index;\r
+  EFI_TPL     OldTpl;\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
+  switch (Snp->Mode.State) {\r
+  case EfiSimpleNetworkStopped:\r
+    break;\r
+\r
+  case EfiSimpleNetworkStarted:\r
+  case EfiSimpleNetworkInitialized:\r
+    Status = EFI_ALREADY_STARTED;\r
+    goto ON_EXIT;\r
+\r
+  default:\r
+    Status = EFI_DEVICE_ERROR;\r
+    goto ON_EXIT;\r
+  }\r
+\r
+  Status = PxeStart (Snp);\r
+  if (EFI_ERROR (Status)) {\r
+    goto ON_EXIT;\r
+  }\r
+  //\r
+  // clear the map_list in SNP structure\r
+  //\r
+  for (Index = 0; Index < MAX_MAP_LENGTH; Index++) {\r
+    Snp->MapList[Index].VirtualAddress = 0;\r
+    Snp->MapList[Index].MapCookie      = 0;\r
+  }\r
+\r
+  Snp->Mode.MCastFilterCount = 0;\r
+\r
+ON_EXIT:\r
+  gBS->RestoreTPL (OldTpl);\r
+\r
+  return Status;\r
+}\r