diff options
Diffstat (limited to 'EdkModulePkg/Universal/Network/Snp32_64/Dxe/get_status.c')
| -rw-r--r-- | EdkModulePkg/Universal/Network/Snp32_64/Dxe/get_status.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/EdkModulePkg/Universal/Network/Snp32_64/Dxe/get_status.c b/EdkModulePkg/Universal/Network/Snp32_64/Dxe/get_status.c new file mode 100644 index 0000000000..a3fa173d3e --- /dev/null +++ b/EdkModulePkg/Universal/Network/Snp32_64/Dxe/get_status.c @@ -0,0 +1,193 @@ +/*++
+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"
+
+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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