2 Copyright (c) 2006, Intel Corporation
3 All rights reserved. This program and the accompanying materials
4 are licensed and made available under the terms and conditions of the BSD License
5 which accompanies this distribution. The full text of the license may be found at
6 http://opensource.org/licenses/bsd-license.php
8 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
9 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
17 2000-Feb-03 M(f)J Genesis.
27 UINT32
*InterruptStatusPtr
,
28 VOID
**TransmitBufferListPtr
33 this routine calls undi to get the status of the interrupts, get the list of
34 transmit buffers that completed transmitting!
37 snp - pointer to snp driver structure
38 InterruptStatusPtr - a non null pointer gets the interrupt status
39 TransmitBufferListPtrs - a non null ointer gets the list of pointers of previously
40 transmitted buffers whose transmission was completed
47 PXE_DB_GET_STATUS
*db
;
48 UINT16 InterruptFlags
;
52 snp
->cdb
.OpCode
= PXE_OPCODE_GET_STATUS
;
56 if (TransmitBufferListPtr
!= NULL
) {
57 snp
->cdb
.OpFlags
|= PXE_OPFLAGS_GET_TRANSMITTED_BUFFERS
;
60 if (InterruptStatusPtr
!= NULL
) {
61 snp
->cdb
.OpFlags
|= PXE_OPFLAGS_GET_INTERRUPT_STATUS
;
64 snp
->cdb
.CPBsize
= PXE_CPBSIZE_NOT_USED
;
65 snp
->cdb
.CPBaddr
= PXE_CPBADDR_NOT_USED
;
68 // size DB for return of one buffer
70 snp
->cdb
.DBsize
= (UINT16
) (((UINT16
) (sizeof (PXE_DB_GET_STATUS
)) - (UINT16
) (sizeof db
->TxBuffer
)) + (UINT16
) (sizeof db
->TxBuffer
[0]));
72 snp
->cdb
.DBaddr
= (UINT64
) (UINTN
) db
;
74 snp
->cdb
.StatCode
= PXE_STATCODE_INITIALIZE
;
75 snp
->cdb
.StatFlags
= PXE_STATFLAGS_INITIALIZE
;
76 snp
->cdb
.IFnum
= snp
->if_num
;
77 snp
->cdb
.Control
= PXE_CONTROL_LAST_CDB_IN_LIST
;
80 // Issue UNDI command and check result.
82 DEBUG ((EFI_D_NET
, "\nsnp->undi.get_status() "));
84 (*snp
->issue_undi32_command
) ((UINT64
) (UINTN
) &snp
->cdb
);
86 if (snp
->cdb
.StatCode
!= EFI_SUCCESS
) {
89 "\nsnp->undi.get_status() %xh:%xh\n",
94 return EFI_DEVICE_ERROR
;
97 // report the values back..
99 if (InterruptStatusPtr
!= NULL
) {
100 InterruptFlags
= (UINT16
) (snp
->cdb
.StatFlags
& PXE_STATFLAGS_GET_STATUS_INTERRUPT_MASK
);
102 *InterruptStatusPtr
= 0;
104 if (InterruptFlags
& PXE_STATFLAGS_GET_STATUS_RECEIVE
) {
105 *InterruptStatusPtr
|= EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT
;
108 if (InterruptFlags
& PXE_STATFLAGS_GET_STATUS_TRANSMIT
) {
109 *InterruptStatusPtr
|= EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT
;
112 if (InterruptFlags
& PXE_STATFLAGS_GET_STATUS_COMMAND
) {
113 *InterruptStatusPtr
|= EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT
;
116 if (InterruptFlags
& PXE_STATFLAGS_GET_STATUS_SOFTWARE
) {
117 *InterruptStatusPtr
|= EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT
;
122 if (TransmitBufferListPtr
!= NULL
) {
123 *TransmitBufferListPtr
=
125 (snp
->cdb
.StatFlags
& PXE_STATFLAGS_GET_STATUS_NO_TXBUFS_WRITTEN
) ||
126 (snp
->cdb
.StatFlags
& PXE_STATFLAGS_GET_STATUS_TXBUF_QUEUE_EMPTY
)
127 ) ? 0 : (VOID
*) (UINTN
) db
->TxBuffer
[0];
129 TempData
= (UINT64
) (UINTN
) (*TransmitBufferListPtr
);
130 if (snp
->IsOldUndi
&& (TempData
>= FOUR_GIGABYTES
)) {
131 del_v2p ((VOID
*) (UINTN
) (db
->TxBuffer
[0]));
140 snp_undi32_get_status (
141 IN EFI_SIMPLE_NETWORK_PROTOCOL
* this,
142 OUT UINT32
*InterruptStatusPtr OPTIONAL
,
143 OUT VOID
**TransmitBufferListPtr OPTIONAL
148 This is the SNP interface routine for getting the status
149 This routine basically retrieves snp structure, checks the SNP state and
150 calls the pxe_getstatus routine to actually get the undi status
153 this - context pointer
154 InterruptStatusPtr - a non null pointer gets the interrupt status
155 TransmitBufferListPtrs - a non null ointer gets the list of pointers of previously
156 transmitted buffers whose transmission was completed
166 return EFI_INVALID_PARAMETER
;
169 snp
= EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);
172 return EFI_DEVICE_ERROR
;
175 switch (snp
->mode
.State
) {
176 case EfiSimpleNetworkInitialized
:
179 case EfiSimpleNetworkStopped
:
180 return EFI_NOT_STARTED
;
182 case EfiSimpleNetworkStarted
:
183 return EFI_DEVICE_ERROR
;
186 return EFI_DEVICE_ERROR
;
189 if (InterruptStatusPtr
== NULL
&& TransmitBufferListPtr
== NULL
) {
190 return EFI_INVALID_PARAMETER
;
193 return pxe_getstatus (snp
, InterruptStatusPtr
, TransmitBufferListPtr
);