Partially make EdkModulePkg pass intel IPF compiler with /W4 /WX switched on.

[mirror_edk2.git] / EdkModulePkg / Universal / Network / Snp32_64 / Dxe / get_status.c

/*++\r
Copyright (c) 2006, 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
  get_status.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
STATIC\r
EFI_STATUS\r
pxe_getstatus (\r
  SNP_DRIVER *snp,\r
  UINT32     *InterruptStatusPtr,\r
  VOID       **TransmitBufferListPtr\r
  )\r
/*++\r
\r
Routine Description:\r
 this routine calls undi to get the status of the interrupts, get the list of\r
 transmit buffers that completed transmitting! \r
\r
Arguments:\r
 snp  - pointer to snp driver structure\r
 InterruptStatusPtr - a non null pointer gets the interrupt status\r
 TransmitBufferListPtrs - a non null ointer gets the list of pointers of previously \r
              transmitted buffers whose transmission was completed \r
              asynchrnously.\r
              \r
Returns:\r
\r
--*/\r
{\r
  PXE_DB_GET_STATUS *db;\r
  UINT16            InterruptFlags;\r
  UINT64            TempData;\r
\r
  db                = snp->db;\r
  snp->cdb.OpCode   = PXE_OPCODE_GET_STATUS;\r
\r
  snp->cdb.OpFlags  = 0;\r
\r
  if (TransmitBufferListPtr != NULL) {\r
    snp->cdb.OpFlags |= PXE_OPFLAGS_GET_TRANSMITTED_BUFFERS;\r
  }\r
\r
  if (InterruptStatusPtr != NULL) {\r
    snp->cdb.OpFlags |= PXE_OPFLAGS_GET_INTERRUPT_STATUS;\r
  }\r
\r
  snp->cdb.CPBsize  = PXE_CPBSIZE_NOT_USED;\r
  snp->cdb.CPBaddr  = PXE_CPBADDR_NOT_USED;\r
\r
  //\r
  // size DB for return of one buffer\r
  //\r
  snp->cdb.DBsize = (UINT16) (((UINT16) (sizeof (PXE_DB_GET_STATUS)) - (UINT16) (sizeof db->TxBuffer)) + (UINT16) (sizeof db->TxBuffer[0]));\r
\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.get_status()  "));\r
\r
  (*snp->issue_undi32_command) ((UINT64) (UINTN) &snp->cdb);\r
\r
  if (snp->cdb.StatCode != EFI_SUCCESS) {\r
    DEBUG (\r
      (EFI_D_NET,\r
      "\nsnp->undi.get_status()  %xh:%xh\n",\r
      snp->cdb.StatFlags,\r
      snp->cdb.StatFlags)\r
      );\r
\r
    return EFI_DEVICE_ERROR;\r
  }\r
  //\r
  // report the values back..\r
  //\r
  if (InterruptStatusPtr != NULL) {\r
    InterruptFlags      = (UINT16) (snp->cdb.StatFlags & PXE_STATFLAGS_GET_STATUS_INTERRUPT_MASK);\r
\r
    *InterruptStatusPtr = 0;\r
\r
    if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_RECEIVE) {\r
      *InterruptStatusPtr |= EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;\r
    }\r
\r
    if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_TRANSMIT) {\r
      *InterruptStatusPtr |= EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;\r
    }\r
\r
    if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_COMMAND) {\r
      *InterruptStatusPtr |= EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT;\r
    }\r
\r
    if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_SOFTWARE) {\r
      *InterruptStatusPtr |= EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT;\r
    }\r
\r
  }\r
\r
  if (TransmitBufferListPtr != NULL) {\r
    *TransmitBufferListPtr =\r
      (\r
        (snp->cdb.StatFlags & PXE_STATFLAGS_GET_STATUS_NO_TXBUFS_WRITTEN) ||\r
        (snp->cdb.StatFlags & PXE_STATFLAGS_GET_STATUS_TXBUF_QUEUE_EMPTY)\r
      ) ? 0 : (VOID *) (UINTN) db->TxBuffer[0];\r
\r
    TempData = (UINT64) (UINTN) (*TransmitBufferListPtr);\r
    if (snp->IsOldUndi && (TempData >= FOUR_GIGABYTES)) {\r
      del_v2p ((VOID *) (UINTN) (db->TxBuffer[0]));\r
    }\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
EFI_STATUS\r
EFIAPI\r
snp_undi32_get_status (\r
  IN EFI_SIMPLE_NETWORK_PROTOCOL * this,\r
  OUT UINT32                     *InterruptStatusPtr OPTIONAL,\r
  OUT VOID                       **TransmitBufferListPtr OPTIONAL\r
  )\r
/*++\r
\r
Routine Description:\r
 This is the SNP interface routine for getting the status\r
 This routine basically retrieves snp structure, checks the SNP state and\r
 calls the pxe_getstatus routine to actually get the undi status\r
\r
Arguments:\r
 this  - context pointer\r
 InterruptStatusPtr - a non null pointer gets the interrupt status\r
 TransmitBufferListPtrs - a non null ointer gets the list of pointers of previously \r
              transmitted buffers whose transmission was completed \r
              asynchrnously.\r
              \r
Returns:\r
\r
--*/\r
{\r
  SNP_DRIVER  *snp;\r
\r
  if (this == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);\r
\r
  if (snp == NULL) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  switch (snp->mode.State) {\r
  case EfiSimpleNetworkInitialized:\r
    break;\r
\r
  case EfiSimpleNetworkStopped:\r
    return EFI_NOT_STARTED;\r
\r
  case EfiSimpleNetworkStarted:\r
    return EFI_DEVICE_ERROR;\r
\r
  default:\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  if (InterruptStatusPtr == NULL && TransmitBufferListPtr == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  return pxe_getstatus (snp, InterruptStatusPtr, TransmitBufferListPtr);\r
}\r