diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Csm/BiosThunk/Snp16Dxe/PxeUndi.c')
| -rw-r--r-- | IntelFrameworkModulePkg/Csm/BiosThunk/Snp16Dxe/PxeUndi.c | 1254 |
1 files changed, 1254 insertions, 0 deletions
diff --git a/IntelFrameworkModulePkg/Csm/BiosThunk/Snp16Dxe/PxeUndi.c b/IntelFrameworkModulePkg/Csm/BiosThunk/Snp16Dxe/PxeUndi.c new file mode 100644 index 0000000..d35fc3f --- /dev/null +++ b/IntelFrameworkModulePkg/Csm/BiosThunk/Snp16Dxe/PxeUndi.c @@ -0,0 +1,1254 @@ +/** @file
+ Wrapper routines that use a PXE-enabled NIC option ROM to
+ supply internal routines for an EFI SNI (Simple Network
+ Interface) Protocol.
+
+ This file relies upon the existence of a PXE-compliant ROM
+ in memory, as defined by the Preboot Execution Environment
+ Specification (PXE), Version 2.1, located at
+
+ http://developer.intel.com/ial/wfm/wfmspecs.htm
+
+Copyright (c) 1999 - 2010, Intel Corporation. All rights reserved.<BR>
+
+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.
+
+**/
+
+#include "BiosSnp16.h"
+
+/**
+ PXE
+ START UNDI
+ Op-Code: PXENV_START_UNDI (0000h)
+ Input: Far pointer to a PXENV_START_UNDI_T parameter structure that has been initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This service is used to pass the BIOS parameter registers to the UNDI driver. The UNDI driver is
+ responsible for saving the information it needs to communicate with the hardware.
+ This service is also responsible for hooking the Int 1Ah service routine
+ Note: This API service must be called only once during UNDI Option ROM boot.
+ The UNDI driver is responsible for saving this information and using it every time
+ PXENV_UNDI_STARTUP is called.
+ Service cannot be used in protected mode.
+ typedef struct {
+ PXENV_STATUS Status;
+ UINT16 AX;
+ UINT16 BX;
+ UINT16 DX;
+ UINT16 DI;
+ UINT16 ES;
+ } PXENV_START_UNDI_T;
+ Set before calling API service
+ AX, BX, DX, DI, ES: BIOS initialization parameter registers. These
+ fields should contain the same information passed to the option ROM
+ initialization routine by the Host System BIOS. Information about the
+ contents of these registers can be found in the [PnP], [PCI] and
+ [BBS] specifications.
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeStartUndi (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_START_UNDI_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_START_UNDI_T),
+ PXENV_START_UNDI
+ );
+}
+
+/**
+ PXE
+ UNDI STARTUP
+ Op-Code: PXENV_UNDI_STARTUP (0001h)
+ Input: Far pointer to a PXENV_UNDI_STARTUP_T parameter structure that has been initialized by the
+ caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the
+ PXENV_STATUS_xxx constants.
+ Description: This API is responsible for initializing the contents of the UNDI code & data segment for proper
+ operation. Information from the !PXE structure and the first PXENV_START_UNDI API call is used
+ to complete this initialization. The rest of the UNDI APIs will not be available until this call has
+ been completed.
+ Note: PXENV_UNDI_STARTUP must not be called again without first calling
+ PXENV_UNDI_SHUTDOWN.
+ PXENV_UNDI_STARTUP and PXENV_UNDI_SHUTDOWN are no longer responsible for
+ chaining interrupt 1Ah. This must be done by the PXENV_START_UNDI and
+ PXENV_STOP_UNDI API calls.
+ This service cannot be used in protected mode.
+ typedef struct
+ {
+ PXENV_STATUS Status;
+ } PXENV_UNDI_STARTUP_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiStartup (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_STARTUP_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_STARTUP_T),
+ PXENV_UNDI_STARTUP
+ );
+}
+
+/**
+ PXE
+ UNDI CLEANUP
+ Op-Code: PXENV_UNDI_CLEANUP (0002h)
+ Input: Far pointer to a PXENV_UNDI_CLEANUP_T parameter structure.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field
+ in the parameter structure must be set to one of the values represented by the
+ PXENV_STATUS_xxx constants.
+ Description: This call will prepare the network adapter driver to be unloaded from memory. This call must be
+ made just before unloading the Universal NIC Driver. The rest of the API will not be available
+ after this call executes.
+ This service cannot be used in protected mode.
+ typedef struct {
+ PXENX_STATUS Status;
+ } PXENV_UNDI_CLEANUP_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiCleanup (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_CLEANUP_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_CLEANUP_T),
+ PXENV_UNDI_CLEANUP
+ );
+}
+
+/**
+ PXE
+ UNDI INITIALIZE
+ Op-Code: PXENV_UNDI_INITIALIZE (0003h)
+ Input: Far pointer to a PXENV_UNDI_INITIALIZE_T parameter structure that has been initialized by the
+ caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call resets the adapter and programs it with default parameters. The default parameters used
+ are those supplied to the most recent UNDI_STARTUP call. This routine does not enable the
+ receive and transmit units of the network adapter to readily receive or transmit packets. The
+ application must call PXENV_UNDI_OPEN to logically connect the network adapter to the network.
+ This call must be made by an application to establish an interface to the network adapter driver.
+ Note: When the PXE code makes this call to initialize the network adapter, it passes a NULL pointer for
+ the Protocol field in the parameter structure.
+ typedef struct {
+ PXENV_STATUS Status;
+ ADDR32 ProtocolIni;
+ UINT8 reserved[8];
+ } PXENV_UNDI_INITIALIZE_T;
+ Set before calling API service
+ ProtocolIni: Physical address of a memory copy of the driver
+ module from the protocol.ini file obtained from the protocol manager
+ driver (refer to the NDIS 2.0 specification). This parameter is
+ supported for the universal NDIS driver to pass the information
+ contained in the protocol.ini file to the NIC driver for any specific
+ configuration of the NIC. (Note that the module identification in the
+ protocol.ini file was done by NDIS.) This value can be NULL for any
+ other application interfacing to the universal NIC driver
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiInitialize (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_INITIALIZE_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_INITIALIZE_T),
+ PXENV_UNDI_INITIALIZE
+ );
+}
+
+/**
+ Wrapper routine for reset adapter.
+
+ PXE
+ UNDI RESET ADAPTER
+ Op-Code: PXENV_UNDI_RESET_ADAPTER (0004h)
+ Input: Far pointer to a PXENV_UNDI_RESET_ADAPTER_t parameter structure that has been initialized
+ by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call resets and reinitializes the network adapter with the same set of parameters supplied to
+ Initialize Routine. Unlike Initialize, this call opens the adapter that is, it connects logically to the
+ network. This routine cannot be used to replace Initialize or Shutdown calls.
+ typedef struct {
+ PXENV_STATUS Status;
+ PXENV_UNDI_MCAST_ADDRESS_t R_Mcast_Buf;
+ } PXENV_UNDI_RESET_T;
+
+ #define MAXNUM_MCADDR 8
+
+ typedef struct {
+ UINT16 MCastAddrCount;
+ MAC_ADDR McastAddr[MAXNUM_MCADDR];
+ } PXENV_UNDI_MCAST_ADDRESS_t;
+
+ Set before calling API service
+ R_Mcast_Buf: This is a structure of MCastAddrCount and
+ McastAddr.
+ MCastAddrCount: Number of multicast MAC addresses in the
+ buffer.
+ McastAddr: List of up to MAXNUM_MCADDR multicast MAC
+ addresses.
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance.
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+ @param RxFilter Filter setting mask value for PXE recive .
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiResetNic (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_RESET_T *PxeUndiTable,
+ IN UINT16 RxFilter
+ )
+{
+ PXENV_UNDI_OPEN_T Open;
+ PXENV_UNDI_CLOSE_T Close;
+ UINTN Status;
+
+ Status = MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_RESET_T),
+ PXENV_UNDI_RESET_NIC
+ );
+ if (!EFI_ERROR(Status)) {
+ return Status;
+ }
+
+ Close.Status = PXENV_STATUS_SUCCESS;
+
+ Status = MakePxeCall (
+ SimpleNetworkDevice,
+ &Close,
+ sizeof (Close),
+ PXENV_UNDI_CLOSE
+ );
+ if (EFI_ERROR(Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ Status = MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_RESET_T),
+ PXENV_UNDI_RESET_NIC
+ );
+ if (EFI_ERROR(Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ Open.Status = PXENV_STATUS_SUCCESS;
+ Open.OpenFlag = 0;
+ Open.PktFilter = RxFilter;
+ CopyMem (
+ &Open.McastBuffer,
+ &PxeUndiTable->R_Mcast_Buf,
+ sizeof (PXENV_UNDI_MCAST_ADDR_T)
+ );
+
+
+ Status = MakePxeCall (
+ SimpleNetworkDevice,
+ &Open,
+ sizeof (Open),
+ PXENV_UNDI_OPEN
+ );
+ if (EFI_ERROR(Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ PXE
+ UNDI SHUTDOWN
+ Op-Code: PXENV_UNDI_SHUTDOWN (0005h)
+ Input: Far pointer to a PXENV_UNDI_SHUTDOWN_T parameter.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call resets the network adapter and leaves it in a safe state for another driver to program it.
+ Note: The contents of the PXENV_UNDI_STARTUP parameter structure need to be saved by the
+ Universal NIC Driver in case PXENV_UNDI_INITIALIZE is called again.
+ typedef struct
+ {
+ PXENV_STATUS Status;
+ } PXENV_UNDI_SHUTDOWN_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiShutdown (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_SHUTDOWN_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_SHUTDOWN_T),
+ PXENV_UNDI_SHUTDOWN
+ );
+}
+
+/**
+ PXE
+ UNDI OPEN
+ Op-Code: PXENV_UNDI_OPEN (0006h)
+ Input: Far pointer to a PXENV_UNDI_OPEN_T parameter structure that has been initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call activates the adapter network connection and sets the adapter ready to accept packets
+ for transmit and receive.
+ typedef struct {
+ PXENV_STATUS Status;
+ UINT16 OpenFlag;
+ UINT16 PktFilter;
+ #define FLTR_DIRECTED 0x0001
+ #define FLTR_BRDCST 0x0002
+ #define FLTR_PRMSCS 0x0004
+ #define FLTR_SRC_RTG 0x0008
+ PXENV_UNDI_MCAST_ADDRESS_t R_Mcast_Buf;
+ } PXENV_UNDI_OPEN_T;
+ Set before calling API service
+ OpenFlag: This is an adapter specific input parameter. This is
+ supported for the universal NDIS 2.0 driver to pass in the open flags
+ provided by the protocol driver. (See the NDIS 2.0 specification.)
+ This can be zero.
+ PktFilter: Filter for receiving packets. This can be one, or more, of
+ the FLTR_xxx constants. Multiple values are arithmetically or-ed
+ together.
+ directed packets are packets that may come to your MAC address
+ or the multicast MAC address.
+ R_Mcast_Buf: See definition in UNDI RESET ADAPTER (0004h).
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiOpen (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_OPEN_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_OPEN_T),
+ PXENV_UNDI_OPEN
+ );
+}
+
+/**
+ PXE
+ UNDI CLOSE
+ Op-Code: PXENV_UNDI_CLOSE (0007h)
+ Input: Far pointer to a PXENV_UNDI_CLOSE_T parameter.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call disconnects the network adapter from the network. Packets cannot be transmitted or
+ received until the network adapter is open again.
+ typedef struct {
+ PXENV_STATUS Status;
+ } PXENV_UNDI_CLOSE_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiClose (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_CLOSE_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_CLOSE_T),
+ PXENV_UNDI_CLOSE
+ );
+}
+
+/**
+ PXE
+ UNDI TRANSMIT PACKET
+ Op-Code: PXENV_UNDI_TRANSMIT (0008h)
+ Input: Far pointer to a PXENV_UNDI_TRANSMIT_T parameter structure that
+ has been initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX.
+ The status code must be set to one of the values represented by the
+ PXENV_STATUS_xxx constants.
+ Description: This call transmits a buffer to the network. The media header
+ for the packet can be filled by the calling protocol, but it might not be.
+ The network adapter driver will fill it if required by the values in the
+ parameter block. The packet is buffered for transmission provided there is
+ an available buffer, and the function returns PXENV_EXIT_SUCCESS. If no
+ buffer is available the function returns PXENV_EXIT_FAILURE with a status
+ code of PXE_UNDI_STATUS__OUT OF_RESOURCE. The number of buffers is
+ implementation-dependent. An interrupt is generated on completion of the
+ transmission of one or more packets. A call to PXENV_UNDI_TRANSMIT is
+ permitted in the context of a transmit complete interrupt.
+
+ typedef struct {
+ PXENV_STATUS Status;
+ UINT8 Protocol;
+ #define P_UNKNOWN 0
+ #define P_IP 1
+ #define P_ARP 2
+ #define P_RARP 3
+ UINT8 XmitFlag;
+ #define XMT_DESTADDR 0x0000
+ #define XMT_BROADCAST 0x0001
+ SEGOFF16 DestAddr;
+ SEGOFF16 TBD;
+ UINT32 Reserved[2];
+ } t_PXENV_UNDI_TRANSMIT;
+
+ #define MAX_DATA_BLKS 8
+
+ typedef struct {
+ UINT16 ImmedLength;
+ SEGOFF16 Xmit;
+ UINT16 DataBlkCount;
+ struct DataBlk {
+ UINT8 TDPtrType;
+ UINT8 TDRsvdByte;
+ UINT16 TDDataLen;
+ SEGOFF16 TDDataPtr;
+ } DataBlock[MAX_DATA_BLKS];
+ } PXENV_UNDI_TBD_T
+
+ Set before calling API service
+ Protocol: This is the protocol of the upper layer that is calling UNDI
+ TRANSMIT call. If the upper layer has filled the media header, this
+ field must be P_UNKNOWN.
+ XmitFlag: If this flag is XMT_DESTADDR, the NIC driver expects a
+ pointer to the destination media address in the field DestAddr. If
+ XMT_BROADCAST, the NIC driver fills the broadcast address for the
+ destination.
+ TBD: Segment:Offset address of the transmit buffer descriptor.
+ ImmedLength: Length of the immediate transmit buffer: Xmit.
+ Xmit: Segment:Offset of the immediate transmit buffer.
+ DataBlkCount: Number of blocks in this transmit buffer.
+ TDPtrType:
+ 0 => 32-bit physical address in TDDataPtr (not supported in this
+ version of PXE)
+ 1 => segment:offset in TDDataPtr which can be a real mode or 16-bit
+ protected mode pointer
+ TDRsvdByte: Reserved must be zero.
+ TDDatalen: Data block length in bytes.
+ TDDataPtr: Segment:Offset of the transmit block.
+ DataBlock: Array of transmit data blocks.
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiTransmit (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_TRANSMIT_T *PxeUndiTable
+ )
+{
+ EFI_STATUS Status;
+
+ Status = MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_TRANSMIT_T),
+ PXENV_UNDI_TRANSMIT
+ );
+ if (Status == EFI_SUCCESS) {
+ return EFI_SUCCESS;
+ }
+
+ switch (PxeUndiTable->Status) {
+ case PXENV_STATUS_OUT_OF_RESOURCES:
+ return EFI_NOT_READY;
+
+ default:
+ return EFI_DEVICE_ERROR;
+ }
+}
+
+/**
+ PXE
+ UNDI SET MULTICAST ADDRESS
+ Op-Code: PXENV_UNDI_SET_MCAST_ADDRESS (0009h)
+ Input: Far pointer to a PXENV_TFTP_SET_MCAST_ADDRESS_t parameter structure that has been
+ initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call changes the current list of multicast addresses to the input list and resets the network
+ adapter to accept it. If the number of multicast addresses is zero, multicast is disabled.
+ typedef struct {
+ PXENV_STATUS Status;
+ PXENV_UNDI_MCAST_ADDRESS_t R_Mcast_Buf;
+ } PXENV_UNDI_SET_MCAST_ADDR_T;
+ Set before calling API service
+ R_Mcast_Buf: See description in the UNDI RESET ADAPTER
+ (0004h) API.
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiSetMcastAddr (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_SET_MCAST_ADDR_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_SET_MCAST_ADDR_T),
+ PXENV_UNDI_SET_MCAST_ADDR
+ );
+}
+
+/**
+ PXE
+ UNDI SET STATION ADDRESS
+ Op-Code: PXENV_UNDI_SET_STATION_ADDRESS (000Ah)
+ Input: Far pointer to a PXENV_UNDI_SET_STATION_ADDRESS_t parameter structure that has been
+ initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call sets the MAC address to be the input value and is called before opening the network
+ adapter. Later, the open call uses this variable as a temporary MAC address to program the
+ adapter individual address registers.
+ typedef struct {
+ PXENV_STATUS Status;
+ MAC_ADDR StationAddress;
+ } PXENV_UNDI_SET_STATION_ADDR_T;
+ Set before calling API service
+ StationAddress: Temporary MAC address to be used for
+ transmit and receive.
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiSetStationAddr (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_SET_STATION_ADDR_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_SET_STATION_ADDR_T),
+ PXENV_UNDI_SET_STATION_ADDR
+ );
+}
+
+/**
+ PXE
+ UNDI SET PACKET FILTER
+ Op-Code: PXENV_UNDI_SET_PACKET_FILTER (000Bh)
+ Input: Far pointer to a PXENV_UNDI_SET_PACKET_FILTER_T parameter structure that has been
+ initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call resets the adapter's receive unit to accept a new filter, different from the one provided with
+ the open call.
+ typedef struct {
+ PXENV_STATUS Status;
+ UINT8 filter;
+ } PXENV_UNDI_SET_PACKET_FILTER_T;
+ Set before calling API service
+ Filter: See the receive filter values in the UNDI OPEN
+ (0006h) API description.
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiSetPacketFilter (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_SET_PACKET_FILTER_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_SET_PACKET_FILTER_T),
+ PXENV_UNDI_SET_PACKET_FILTER
+ );
+}
+
+/**
+ PXE
+ UNDI GET INFORMATION
+ Op-Code: PXENV_UNDI_GET_INFORMATION (000Ch)
+ Input: Far pointer to a PXENV_UNDI_GET_INFORMATION_T parameter structure that has been
+ initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the
+ PXENV_STATUS_xxx constants.
+ Description: This call copies the network adapter variables, including the MAC address, into the input buffer.
+ Note: The PermNodeAddress field must be valid after PXENV_START_UNDI and
+ PXENV_UNDI_STARTUP have been issued. All other fields must be valid after
+ PXENV_START_UNDI, PXENV_UNDI_STARTUP and PXENV_UNDI_INITIALIZE have been
+ called.
+ typedef struct {
+ PXENV_STATUS Status;
+ UINT16 BaseIo;
+ UINT16 IntNumber;
+ UINT16 MaxTranUnit;
+ UINT16 HwType;
+ #define ETHER_TYPE 1
+ #define EXP_ETHER_TYPE 2
+ #define IEEE_TYPE 6
+ #define ARCNET_TYPE 7
+ UINT16 HwAddrLen;
+ MAC_ADDR CurrentNodeAddress;
+ MAC_ADDR PermNodeAddress;
+ SEGSEL ROMAddress;
+ UINT16 RxBufCt;
+ UINT16 TxBufCt;
+ } PXENV_UNDI_GET_INFORMATION_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+ BaseIO: Adapter base I/O address.
+ IntNumber: Adapter IRQ number.
+ MaxTranUnit: Adapter maximum transmit unit.
+ HWType: Type of protocol at the hardware level.
+ HWAddrLen: Length of the hardware address.
+ CurrentNodeAddress: Current hardware address.
+ PermNodeAddress: Permanent hardware address.
+ ROMAddress: Real mode ROM segment address.
+ RxBufCnt: Receive queue length.
+ TxBufCnt: Transmit queue length.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiGetInformation (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_GET_INFORMATION_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_GET_INFORMATION_T),
+ PXENV_UNDI_GET_INFORMATION
+ );
+}
+
+/**
+ PXE
+ UNDI GET STATISTICS
+ Op-Code: PXENV_UNDI_GET_STATISTICS (000Dh)
+ Input: Far pointer to a PXENV_UNDI_GET_STATISTICS_T parameter structure that has been initialized
+ by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call reads statistical information from the network adapter, and returns.
+ typedef struct {
+ PXENV_STATUS Status;
+ UINT32 XmtGoodFrames;
+ UINT32 RcvGoodFrames;
+ UINT32 RcvCRCErrors;
+ UINT32 RcvResourceErrors;
+ } PXENV_UNDI_GET_STATISTICS_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+ XmtGoodFrames: Number of successful transmissions.
+ RcvGoodFrames: Number of good frames received.
+ RcvCRCErrors: Number of frames received with CRC
+ error.
+ RcvResourceErrors: Number of frames discarded
+ because receive queue was full.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiGetStatistics (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_GET_STATISTICS_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_GET_STATISTICS_T),
+ PXENV_UNDI_GET_STATISTICS
+ );
+}
+
+/**
+ PXE
+ UNDI CLEAR STATISTICS
+ Op-Code: PXENV_UNDI_CLEAR_STATISTICS (000Eh)
+ Input: Far pointer to a PXENV_UNDI_CLEAR_STATISTICS_T parameter.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the
+ PXENV_STATUS_xxx constants.
+ Description: This call clears the statistical information from the network adapter.
+ typedef struct {
+ PXENV_STATUS Status;
+ } PXENV_UNDI_CLEAR_STATISTICS_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiClearStatistics (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_CLEAR_STATISTICS_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_CLEAR_STATISTICS_T),
+ PXENV_UNDI_CLEAR_STATISTICS
+ );
+}
+
+/**
+ PXE
+ UNDI INITIATE DIAGS
+ Op-Code: PXENV_UNDI_INITIATE_DIAGS (000Fh)
+ Input: Far pointer to a PXENV_UNDI_INITIATE_DIAGS_T parameter.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the
+ PXENV_STATUS_xxx constants.
+ Description: This call can be used to initiate the run-time diagnostics. It causes the network adapter to run
+ hardware diagnostics and to update its status information.
+ typedef struct {
+ PXENV_STATUS Status;
+ } PXENV_UNDI_INITIATE_DIAGS_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiInitiateDiags (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_INITIATE_DIAGS_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_INITIATE_DIAGS_T),
+ PXENV_UNDI_INITIATE_DIAGS
+ );
+}
+
+/**
+ PXE
+ UNDI FORCE INTERRUPT
+ Op-Code: PXENV_UNDI_FORCE_INTERRUPT (0010h)
+ Input: Far pointer to a PXENV_UNDI_FORCE_INTERRUPT_T parameter structure that has been
+ initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call forces the network adapter to generate an interrupt. When a receive interrupt occurs, the
+ network adapter driver usually queues the packet and calls the application's callback receive
+ routine with a pointer to the packet received. Then, the callback routine either can copy the packet
+ to its buffer or can decide to delay the copy to a later time. If the packet is not immediately copied,
+ the network adapter driver does not remove it from the input queue. When the application wants to
+ copy the packet, it can call the PXENV_UNDI_FORCE_INTERRUPT routine to simulate the receive
+ interrupt.
+ typedef struct {
+ PXENV_STATUS Status;
+ } PXENV_UNDI_FORCE_INTERRUPT_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiForceInterrupt (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_FORCE_INTERRUPT_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_FORCE_INTERRUPT_T),
+ PXENV_UNDI_FORCE_INTERRUPT
+ );
+}
+
+/**
+ PXE
+ UNDI GET MULTICAST ADDRESS
+ Op-Code: PXENV_UNDI_GET_MCAST_ADDRESS (0011h)
+ Input: Far pointer to a PXENV_GET_MCAST_ADDRESS_t parameter structure that has been initialized
+ by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This call converts the given IP multicast address to a hardware multicast address.
+ typedef struct {
+ PXENV_STATUS Status;
+ IP4 InetAddr;
+ MAC_ADDR MediaAddr;
+ } PXENV_UNDI_GET_MCAST_ADDR_T;
+ Set before calling API service
+ InetAddr: IP multicast address.
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+ MediaAddr: MAC multicast address.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiGetMcastAddr (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_GET_MCAST_ADDR_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_GET_MCAST_ADDR_T),
+ PXENV_UNDI_GET_MCAST_ADDR
+ );
+}
+
+/**
+ PXE
+ UNDI GET NIC TYPE
+ Op-Code: PXENV_UNDI_GET_NIC_TYPE (0012h)
+ Input: Far pointer to a PXENV_UNDI_GET_NIC_TYPE parameter structure that has been initialized by
+ the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants. If the PXENV_EXIT_SUCCESS is returned the parameter structure must contain the
+ NIC information.
+ Description: This call, if successful, provides the NIC-specific information necessary to identify the network
+ adapter that is used to boot the system.
+ Note: The application first gets the DHCPDISCOVER packet using GET_CACHED_INFO and checks if
+ the UNDI is supported before making this call. If the UNDI is not supported, the NIC-specific
+ information can be obtained from the DHCPDISCOVER packet itself.
+ PXENV_START_UNDI, PXENV_UNDI_STARTUP and PXENV_UNDI_INITIALIZE must be called
+ before the information provided is valid.
+ typedef {
+ PXENV_STATUS Status;
+ UINT8 NicType;
+ #define PCI_NIC 2
+ #define PnP_NIC 3
+ #define CardBus_NIC 4
+ Union {
+ Struct {
+ UINT16 Vendor_ID;
+ UINT16 Dev_ID;
+ UINT8 Base_Class;
+ UINT8 Sub_Class;
+ UINT8 Prog_Intf;
+ UINT8 Rev;
+ UINT16 BusDevFunc;
+ UINT16 SubVendor_ID;
+ UINT16 SubDevice_ID;
+ } pci, cardbus;
+ struct {
+ UINT32 EISA_Dev_ID;
+ UINT8 Base_Class;
+ UINT8 Sub_Class;
+ UINT8 Prog_Intf;
+ UINT16 CardSelNum;
+ } pnp;
+ } info;
+ } PXENV_UNDI_GET_NIC_TYPE_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+ NICType: Type of NIC information stored in the parameter
+ structure.
+ Info: Information about the fields in this union can be found
+ in the [PnP] and [PCI] specifications
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiGetNicType (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_GET_NIC_TYPE_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_GET_NIC_TYPE_T),
+ PXENV_UNDI_GET_NIC_TYPE
+ );
+}
+
+/**
+ PXE
+ UNDI GET IFACE INFO
+ Op-Code: PXENV_UNDI_GET_IFACE_INFO (0013h)
+ Input: Far pointer to a PXENV_UNDI_GET_IFACE_INFO_t parameter structure that has been initialized
+ by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants. If the PXENV_EXIT_SUCCESS is returned, the parameter structure must contain the
+ interface specific information.
+ Description: This call, if successful, provides the network interface specific information such as the interface
+ type at the link layer (Ethernet, Tokenring) and the link speed. This information can be used in the
+ universal drivers such as NDIS or Miniport to communicate to the upper protocol modules.
+ Note: UNDI follows the NDIS2 specification in giving this information. It is the responsibility of the
+ universal driver to translate/convert this information into a format that is required in its specification
+ or to suit the expectation of the upper level protocol modules.
+ PXENV_START_UNDI, PXENV_UNDI_STARTUP and PXENV_UNDI_INITIALIZE must be called
+ before the information provided is valid.
+ typedef struct {
+ PXENV_STATUS Status
+ UINT8 IfaceType[16];
+ UINT32 LinkSpeed;
+ UINT32 ServiceFlags;
+ UINT32 Reserved[4];
+ } PXENV_UNDI_GET_NDIS_INFO_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+ IfaceType: Name of MAC type in ASCIIZ format. This is
+ used by the universal NDIS driver to specify its driver type
+ to the protocol driver.
+ LinkSpeed: Defined in the NDIS 2.0 specification.
+ ServiceFlags: Defined in the NDIS 2.0 specification.
+ Reserved: Must be zero.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiGetNdisInfo (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_GET_NDIS_INFO_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_GET_NDIS_INFO_T),
+ PXENV_UNDI_GET_NDIS_INFO
+ );
+}
+
+/**
+ PXE
+ UNDI ISR
+ Op-Code: PXENV_UNDI_ISR (0014h)
+ Input: Far pointer to a PXENV_UNDI_ISR_T parameter structure that has been initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This API function will be called at different levels of processing the interrupt. The FuncFlag field in
+ the parameter block indicates the operation to be performed for the call. This field is filled with the
+ status of that operation on return.
+ Note: Interrupt Service Routine Operation:
+ In this design the UNDI does not hook the interrupt for the Network Interface. Instead, the
+ application or the protocol driver hooks the interrupt and calls UNDI with the PXENV_UNDI_ISR
+ API call for interrupt verification (PXENV_UNDI_ISR_IN_START) and processing
+ (PXENV_UNDI_ISR_IN_PROCESS and PXENV_UNDI_ISR_GET_NEXT).
+ When the Network Interface HW generates an interrupt the protocol driver interrupt service
+ routine (ISR) gets control and takes care of the interrupt processing at the PIC level. The ISR then
+ calls the UNDI using the PXENV_UNDI_ISR API with the value PXENV_UNDI_ISR_IN_START for
+ the FuncFlag parameter. At this time UNDI must disable the interrupts at the Network Interface
+ level and read any status values required to further process the interrupt. UNDI must return as
+ quickly as possible with one of the two values, PXENV_UNDI_ISR_OUT_OURS or
+ PXENV_UNDI_ISR_OUT_NOT_OURS, for the parameter FuncFlag depending on whether the
+ interrupt was generated by this particular Network Interface or not.
+ If the value returned in FuncFlag is PXENV_UNDI_ISR_OUT_NOT_OURS, then the interrupt was
+ not generated by our NIC, and interrupt processing is complete.
+ If the value returned in FuncFlag is PXENV_UNDI_ISR_OUT_OURS, the protocol driver must start
+ a handler thread and send an end-of-interrupt (EOI) command to the PIC. Interrupt processing is
+ now complete.
+ The protocol driver strategy routine will call UNDI using this same API with FuncFlag equal to
+ PXENV_UNDI_ISR_IN_PROCESS. At this time UNDI must find the cause of this interrupt and
+ return the status in the FuncFlag. It first checks if there is a frame received and if so it returns the
+ first buffer pointer of that frame in the parameter block.
+ The protocol driver calls UNDI repeatedly with the FuncFlag equal to
+ PXENV_UNDI_ISR_IN_GET_NEXT to get all the buffers in a frame and also all the received
+ frames in the queue. On this call, UNDI must remember the previous buffer given to the protoco,l
+ remove it from the receive queue and recycle it. In case of a multi-buffered frame, if the previous
+ buffer is not the last buffer in the frame it must return the next buffer in the frame in the parameter
+ block. Otherwise it must return the first buffer in the next frame.
+ If there is no received frame pending to be processed, UNDI processes the transmit completes and
+ if there is no other interrupt status to be processed, UNDI re-enables the interrupt at the
+ NETWORK INTERFACE level and returns PXENV_UNDI_ISR_OUT_DONE in the FuncFlag.
+ IMPORTANT: It is possible for the protocol driver to be interrupted again while in the
+ strategy routine when the UNDI re-enables interrupts.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiIsr (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_ISR_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_ISR_T),
+ PXENV_UNDI_ISR
+ );
+}
+
+/**
+ PXE
+ STOP UNDI
+ Op-Code: PXENV_STOP_UNDI (0015h)
+ Input: Far pointer to a PXENV_STOP_UNDI_T parameter structure that has been initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This routine is responsible for unhooking the Int 1Ah service routine.
+ Note: This API service must be called only once at the end of UNDI Option ROM boot. One of the valid
+ status codes is PXENV_STATUS_KEEP. If this status is returned, UNDI must not be removed from
+ base memory. Also, UNDI must not be removed from base memory if BC is not removed from base
+ memory.
+ Service cannot be used in protected mode.
+ typedef struct {
+ PXENV_STATUS Status;
+ } PXENV_STOP_UNDI_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiStop (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_STOP_UNDI_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_STOP_UNDI_T),
+ PXENV_STOP_UNDI
+ );
+}
+
+/**
+ PXE
+ UNDI GET STATE
+ Op-Code: PXENV_UNDI_GET_STATE (0015h)
+ Input: Far pointer to a PXENV_UNDI_GET_STATE_T parameter.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants. The UNDI_STATE field in the parameter structure must be set to one of the valid state
+ constants
+ Description: This call can be used to obtain state of the UNDI engine in order to avoid issuing adverse call
+ sequences
+ typedef struct {
+ #define PXE_UNDI_GET_STATE_STARTED 1
+ #define PXE_UNDI_GET_STATE_INITIALIZED 2
+ #define PXE_UNDI_GET_STATE_OPENED 3
+ PXENV_STATUS Status;
+ UINT8 UNDIstate;
+ } PXENV_UNDI_GET_STATE_T;
+ Set before calling API service
+ N/A
+ Returned from API service
+ Status: See the PXENV_STATUS_xxx constants.
+ State: See definitions of the state constants.
+ Note. UNDI implementation is responsible for maintaining
+ internal state machine.
+ UNDI ISR
+ Op-Code: PXENV_UNDI_ISR (0014h)
+ Input: Far pointer to a t_PXENV_UNDI_ISR parameter structure that has been initialized by the caller.
+ Output: PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be returned in AX. The status field in
+ the parameter structure must be set to one of the values represented by the PXENV_STATUS_xxx
+ constants.
+ Description: This API function will be called at different levels of processing the interrupt. The FuncFlag field in
+ the parameter block indicates the operation to be performed for the call. This field is filled with the
+ status of that operation on return.
+
+ @param SimpleNetworkDevice Device instance
+ @param PxeUndiTable Point to structure which hold paramter and return value
+ for option ROM call.
+
+ @return Return value of PXE option ROM far call.
+**/
+EFI_STATUS
+PxeUndiGetState (
+ IN EFI_SIMPLE_NETWORK_DEV *SimpleNetworkDevice,
+ IN OUT PXENV_UNDI_GET_STATE_T *PxeUndiTable
+ )
+{
+ return MakePxeCall (
+ SimpleNetworkDevice,
+ PxeUndiTable,
+ sizeof (PXENV_UNDI_GET_STATE_T),
+ PXENV_UNDI_GET_STATE
+ );
+}
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