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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module name:
get_status.c
Abstract:
Revision history:
2000-Feb-03 M(f)J Genesis.
--*/
#include "Snp.h"
STATIC
EFI_STATUS
pxe_getstatus (
SNP_DRIVER *snp,
UINT32 *InterruptStatusPtr,
VOID **TransmitBufferListPtr
)
/*++
Routine Description:
this routine calls undi to get the status of the interrupts, get the list of
transmit buffers that completed transmitting!
Arguments:
snp - pointer to snp driver structure
InterruptStatusPtr - a non null pointer gets the interrupt status
TransmitBufferListPtrs - a non null ointer gets the list of pointers of previously
transmitted buffers whose transmission was completed
asynchrnously.
Returns:
--*/
{
PXE_DB_GET_STATUS *db;
UINT16 InterruptFlags;
UINT64 TempData;
db = snp->db;
snp->cdb.OpCode = PXE_OPCODE_GET_STATUS;
snp->cdb.OpFlags = 0;
if (TransmitBufferListPtr != NULL) {
snp->cdb.OpFlags |= PXE_OPFLAGS_GET_TRANSMITTED_BUFFERS;
}
if (InterruptStatusPtr != NULL) {
snp->cdb.OpFlags |= PXE_OPFLAGS_GET_INTERRUPT_STATUS;
}
snp->cdb.CPBsize = PXE_CPBSIZE_NOT_USED;
snp->cdb.CPBaddr = PXE_CPBADDR_NOT_USED;
//
// size DB for return of one buffer
//
snp->cdb.DBsize = (UINT16) (((UINT16) (sizeof (PXE_DB_GET_STATUS)) - (UINT16) (sizeof db->TxBuffer)) + (UINT16) (sizeof db->TxBuffer[0]));
snp->cdb.DBaddr = (UINT64) (UINTN) db;
snp->cdb.StatCode = PXE_STATCODE_INITIALIZE;
snp->cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
snp->cdb.IFnum = snp->if_num;
snp->cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
//
// Issue UNDI command and check result.
//
DEBUG ((EFI_D_NET, "\nsnp->undi.get_status() "));
(*snp->issue_undi32_command) ((UINT64) (UINTN) &snp->cdb);
if (snp->cdb.StatCode != EFI_SUCCESS) {
DEBUG (
(EFI_D_NET,
"\nsnp->undi.get_status() %xh:%xh\n",
snp->cdb.StatFlags,
snp->cdb.StatFlags)
);
return EFI_DEVICE_ERROR;
}
//
// report the values back..
//
if (InterruptStatusPtr != NULL) {
InterruptFlags = (UINT16) (snp->cdb.StatFlags & PXE_STATFLAGS_GET_STATUS_INTERRUPT_MASK);
*InterruptStatusPtr = 0;
if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_RECEIVE) {
*InterruptStatusPtr |= EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;
}
if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_TRANSMIT) {
*InterruptStatusPtr |= EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;
}
if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_COMMAND) {
*InterruptStatusPtr |= EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT;
}
if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_SOFTWARE) {
*InterruptStatusPtr |= EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT;
}
}
if (TransmitBufferListPtr != NULL) {
*TransmitBufferListPtr =
(
(snp->cdb.StatFlags & PXE_STATFLAGS_GET_STATUS_NO_TXBUFS_WRITTEN) ||
(snp->cdb.StatFlags & PXE_STATFLAGS_GET_STATUS_TXBUF_QUEUE_EMPTY)
) ? 0 : (VOID *) (UINTN) db->TxBuffer[0];
TempData = (UINT64) (UINTN) (*TransmitBufferListPtr);
if (snp->IsOldUndi && (TempData >= FOUR_GIGABYTES)) {
del_v2p ((VOID *) (UINTN) (db->TxBuffer[0]));
}
}
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
snp_undi32_get_status (
IN EFI_SIMPLE_NETWORK_PROTOCOL * this,
OUT UINT32 *InterruptStatusPtr OPTIONAL,
OUT VOID **TransmitBufferListPtr OPTIONAL
)
/*++
Routine Description:
This is the SNP interface routine for getting the status
This routine basically retrieves snp structure, checks the SNP state and
calls the pxe_getstatus routine to actually get the undi status
Arguments:
this - context pointer
InterruptStatusPtr - a non null pointer gets the interrupt status
TransmitBufferListPtrs - a non null ointer gets the list of pointers of previously
transmitted buffers whose transmission was completed
asynchrnously.
Returns:
--*/
{
SNP_DRIVER *snp;
if (this == NULL) {
return EFI_INVALID_PARAMETER;
}
snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);
if (snp == NULL) {
return EFI_DEVICE_ERROR;
}
switch (snp->mode.State) {
case EfiSimpleNetworkInitialized:
break;
case EfiSimpleNetworkStopped:
return EFI_NOT_STARTED;
case EfiSimpleNetworkStarted:
return EFI_DEVICE_ERROR;
default:
return EFI_DEVICE_ERROR;
}
if (InterruptStatusPtr == NULL && TransmitBufferListPtr == NULL) {
return EFI_INVALID_PARAMETER;
}
return pxe_getstatus (snp, InterruptStatusPtr, TransmitBufferListPtr);
}
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