diff options
Diffstat (limited to 'EdkModulePkg/Universal/Network/Snp32_64/Dxe/start.c')
| -rw-r--r-- | EdkModulePkg/Universal/Network/Snp32_64/Dxe/start.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/EdkModulePkg/Universal/Network/Snp32_64/Dxe/start.c b/EdkModulePkg/Universal/Network/Snp32_64/Dxe/start.c new file mode 100644 index 0000000000..1fab0de8ef --- /dev/null +++ b/EdkModulePkg/Universal/Network/Snp32_64/Dxe/start.c @@ -0,0 +1,191 @@ +/*++
+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:
+ start.c
+
+Abstract:
+
+Revision history:
+ 2000-Feb-07 M(f)J Genesis.
+--*/
+
+
+#include "snp.h"
+
+EFI_STATUS
+pxe_start (
+ SNP_DRIVER *snp
+ )
+/*++
+
+Routine Description:
+ this routine calls undi to start the interface and changes the snp state!
+
+Arguments:
+ snp - pointer to snp driver structure
+
+Returns:
+
+--*/
+{
+ PXE_CPB_START_30 *cpb;
+ PXE_CPB_START_31 *cpb_31;
+
+ cpb = snp->cpb;
+ cpb_31 = snp->cpb;
+ //
+ // Initialize UNDI Start CDB for H/W UNDI
+ //
+ snp->cdb.OpCode = PXE_OPCODE_START;
+ snp->cdb.OpFlags = PXE_OPFLAGS_NOT_USED;
+ snp->cdb.CPBsize = PXE_CPBSIZE_NOT_USED;
+ snp->cdb.DBsize = PXE_DBSIZE_NOT_USED;
+ snp->cdb.CPBaddr = PXE_CPBADDR_NOT_USED;
+ snp->cdb.DBaddr = PXE_DBADDR_NOT_USED;
+ 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;
+
+ //
+ // Make changes to H/W UNDI Start CDB if this is
+ // a S/W UNDI.
+ //
+ if (snp->is_swundi) {
+ if (snp->IsOldUndi) {
+ snp->cdb.CPBsize = sizeof (PXE_CPB_START_30);
+ snp->cdb.CPBaddr = (UINT64) (UINTN) cpb;
+
+ cpb->Delay = (UINT64) &snp_undi32_callback_delay_30;
+ cpb->Block = (UINT64) &snp_undi32_callback_block_30;
+
+ //
+ // Virtual == Physical. This can be set to zero.
+ //
+ cpb->Virt2Phys = (UINT64) &snp_undi32_callback_v2p_30;
+ cpb->Mem_IO = (UINT64) &snp_undi32_callback_memio_30;
+ } else {
+ snp->cdb.CPBsize = sizeof (PXE_CPB_START_31);
+ snp->cdb.CPBaddr = (UINT64) (UINTN) cpb_31;
+
+ cpb_31->Delay = (UINT64) &snp_undi32_callback_delay;
+ cpb_31->Block = (UINT64) &snp_undi32_callback_block;
+
+ //
+ // Virtual == Physical. This can be set to zero.
+ //
+ cpb_31->Virt2Phys = (UINT64) 0;
+ cpb_31->Mem_IO = (UINT64) &snp_undi32_callback_memio;
+
+ cpb_31->Map_Mem = (UINT64) &snp_undi32_callback_map;
+ cpb_31->UnMap_Mem = (UINT64) &snp_undi32_callback_unmap;
+ cpb_31->Sync_Mem = (UINT64) &snp_undi32_callback_sync;
+
+ cpb_31->Unique_ID = (UINT64) (UINTN) snp;
+ }
+ }
+ //
+ // Issue UNDI command and check result.
+ //
+ DEBUG ((EFI_D_NET, "\nsnp->undi.start() "));
+
+ (*snp->issue_undi32_command) ((UINT64) (UINTN) &snp->cdb);
+
+ if (snp->cdb.StatCode != PXE_STATCODE_SUCCESS) {
+ //
+ // UNDI could not be started. Return UNDI error.
+ //
+ DEBUG (
+ (EFI_D_ERROR,
+ "\nsnp->undi.start() %xh:%xh\n",
+ snp->cdb.StatCode,
+ snp->cdb.StatFlags)
+ );
+
+ return EFI_DEVICE_ERROR;
+ }
+ //
+ // Set simple network state to Started and return success.
+ //
+ snp->mode.State = EfiSimpleNetworkStarted;
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+snp_undi32_start (
+ IN EFI_SIMPLE_NETWORK_PROTOCOL *This
+ )
+/*++
+
+Routine Description:
+ This is the SNP interface routine for starting the interface
+ This routine basically retrieves snp structure, checks the SNP state and
+ calls the pxe_start routine to actually do start undi interface
+
+Arguments:
+ This - context pointer
+
+Returns:
+ EFI_INVALID_PARAMETER - "This" is Null
+ - No SNP driver can be extracted from "This"
+ EFI_ALREADY_STARTED - The state of SNP is EfiSimpleNetworkStarted
+ or EfiSimpleNetworkInitialized
+ EFI_DEVICE_ERROR - The state of SNP is other than EfiSimpleNetworkStarted,
+ EfiSimpleNetworkInitialized, and EfiSimpleNetworkStopped
+ EFI_SUCCESS - UNDI interface is succesfully started
+ Other - Error occurs while calling pxe_start function.
+
+--*/
+{
+ SNP_DRIVER *Snp;
+ EFI_STATUS Status;
+ UINTN Index;
+
+ if (This == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);
+
+ if (Snp == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ switch (Snp->mode.State) {
+ case EfiSimpleNetworkStopped:
+ break;
+
+ case EfiSimpleNetworkStarted:
+ case EfiSimpleNetworkInitialized:
+ return EFI_ALREADY_STARTED;
+
+ default:
+ return EFI_DEVICE_ERROR;
+ }
+
+ Status = pxe_start (Snp);
+ if (Status != EFI_SUCCESS) {
+ return Status;
+ }
+ //
+ // clear the map_list in SNP structure
+ //
+ for (Index = 0; Index < MAX_MAP_LENGTH; Index++) {
+ Snp->map_list[Index].virt = 0;
+ Snp->map_list[Index].map_cookie = 0;
+ }
+
+ Snp->mode.MCastFilterCount = 0;
+
+ return Status;
+}
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