blob: eaba03c57dbe657cf8c914ab6d7f2d6990843b6d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/** @file
Copyright (c) 2004 - 2007, 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"
/**
this routine calls undi to start the interface and changes the snp state!
@param snp pointer to snp driver structure
**/
EFI_STATUS
pxe_start (
SNP_DRIVER *snp
)
{
PXE_CPB_START_31 *cpb_31;
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) {
snp->cdb.CPBsize = sizeof (PXE_CPB_START_31);
snp->cdb.CPBaddr = (UINT64)(UINTN) cpb_31;
cpb_31->Delay = (UINT64)(UINTN) &snp_undi32_callback_delay;
cpb_31->Block = (UINT64)(UINTN) &snp_undi32_callback_block;
//
// Virtual == Physical. This can be set to zero.
//
cpb_31->Virt2Phys = (UINT64)(UINTN) 0;
cpb_31->Mem_IO = (UINT64)(UINTN) &snp_undi32_callback_memio;
cpb_31->Map_Mem = (UINT64)(UINTN) &snp_undi32_callback_map;
cpb_31->UnMap_Mem = (UINT64)(UINTN) &snp_undi32_callback_unmap;
cpb_31->Sync_Mem = (UINT64)(UINTN) &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;
}
/**
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
@param This context pointer
@retval EFI_INVALID_PARAMETER "This" is Null
@retval No SNP driver can be extracted from "This"
@retval EFI_ALREADY_STARTED The state of SNP is EfiSimpleNetworkStarted or
EfiSimpleNetworkInitialized
@retval EFI_DEVICE_ERROR The state of SNP is other than
EfiSimpleNetworkStarted,
EfiSimpleNetworkInitialized, and
EfiSimpleNetworkStopped
@retval EFI_SUCCESS UNDI interface is succesfully started
@retval Other Error occurs while calling pxe_start function.
**/
EFI_STATUS
EFIAPI
snp_undi32_start (
IN EFI_SIMPLE_NETWORK_PROTOCOL *This
)
{
SNP_DRIVER *Snp;
EFI_STATUS Status;
UINTN Index;
EFI_TPL OldTpl;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
switch (Snp->mode.State) {
case EfiSimpleNetworkStopped:
break;
case EfiSimpleNetworkStarted:
case EfiSimpleNetworkInitialized:
Status = EFI_ALREADY_STARTED;
goto ON_EXIT;
default:
Status = EFI_DEVICE_ERROR;
goto ON_EXIT;
}
Status = pxe_start (Snp);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// 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;
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
|
