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75d0f44d | 1 | /** @file\r |
2 | Copyright (c) 2004 - 2007, Intel Corporation\r | |
3 | All rights reserved. This program and the accompanying materials\r | |
4 | are licensed and made available under the terms and conditions of the BSD License\r | |
5 | which accompanies this distribution. The full text of the license may be found at\r | |
6 | http://opensource.org/licenses/bsd-license.php\r | |
7 | \r | |
8 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
9 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
10 | \r | |
11 | Module name:\r | |
12 | get_status.c\r | |
13 | \r | |
14 | Abstract:\r | |
15 | \r | |
16 | Revision history:\r | |
17 | 2000-Feb-03 M(f)J Genesis.\r | |
18 | \r | |
19 | **/\r | |
20 | \r | |
21 | #include "Snp.h"\r | |
22 | \r | |
75d0f44d | 23 | /**\r |
24 | this routine calls undi to get the status of the interrupts, get the list of\r | |
25 | transmit buffers that completed transmitting!\r | |
26 | \r | |
27 | @param snp pointer to snp driver structure\r | |
28 | @param InterruptStatusPtr a non null pointer gets the interrupt status\r | |
29 | @param TransmitBufferListPtrs a non null ointer gets the list of pointers of\r | |
30 | previously transmitted buffers whose\r | |
31 | transmission was completed asynchrnously.\r | |
32 | \r | |
33 | \r | |
34 | **/\r | |
35 | EFI_STATUS\r | |
36 | pxe_getstatus (\r | |
37 | SNP_DRIVER *snp,\r | |
38 | UINT32 *InterruptStatusPtr,\r | |
39 | VOID **TransmitBufferListPtr\r | |
40 | )\r | |
41 | {\r | |
42 | PXE_DB_GET_STATUS *db;\r | |
43 | UINT16 InterruptFlags;\r | |
44 | \r | |
45 | db = snp->db;\r | |
46 | snp->cdb.OpCode = PXE_OPCODE_GET_STATUS;\r | |
47 | \r | |
48 | snp->cdb.OpFlags = 0;\r | |
49 | \r | |
50 | if (TransmitBufferListPtr != NULL) {\r | |
51 | snp->cdb.OpFlags |= PXE_OPFLAGS_GET_TRANSMITTED_BUFFERS;\r | |
52 | }\r | |
53 | \r | |
54 | if (InterruptStatusPtr != NULL) {\r | |
55 | snp->cdb.OpFlags |= PXE_OPFLAGS_GET_INTERRUPT_STATUS;\r | |
56 | }\r | |
57 | \r | |
58 | snp->cdb.CPBsize = PXE_CPBSIZE_NOT_USED;\r | |
59 | snp->cdb.CPBaddr = PXE_CPBADDR_NOT_USED;\r | |
60 | \r | |
61 | //\r | |
62 | // size DB for return of one buffer\r | |
63 | //\r | |
64 | snp->cdb.DBsize = (UINT16) (((UINT16) (sizeof (PXE_DB_GET_STATUS)) - (UINT16) (sizeof db->TxBuffer)) + (UINT16) (sizeof db->TxBuffer[0]));\r | |
65 | \r | |
66 | snp->cdb.DBaddr = (UINT64)(UINTN) db;\r | |
67 | \r | |
68 | snp->cdb.StatCode = PXE_STATCODE_INITIALIZE;\r | |
69 | snp->cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
70 | snp->cdb.IFnum = snp->if_num;\r | |
71 | snp->cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
72 | \r | |
73 | //\r | |
74 | // Issue UNDI command and check result.\r | |
75 | //\r | |
76 | DEBUG ((EFI_D_NET, "\nsnp->undi.get_status() "));\r | |
77 | \r | |
78 | (*snp->issue_undi32_command) ((UINT64)(UINTN) &snp->cdb);\r | |
79 | \r | |
80 | if (snp->cdb.StatCode != EFI_SUCCESS) {\r | |
81 | DEBUG (\r | |
82 | (EFI_D_NET,\r | |
83 | "\nsnp->undi.get_status() %xh:%xh\n",\r | |
84 | snp->cdb.StatFlags,\r | |
85 | snp->cdb.StatFlags)\r | |
86 | );\r | |
87 | \r | |
88 | return EFI_DEVICE_ERROR;\r | |
89 | }\r | |
90 | //\r | |
91 | // report the values back..\r | |
92 | //\r | |
93 | if (InterruptStatusPtr != NULL) {\r | |
94 | InterruptFlags = (UINT16) (snp->cdb.StatFlags & PXE_STATFLAGS_GET_STATUS_INTERRUPT_MASK);\r | |
95 | \r | |
96 | *InterruptStatusPtr = 0;\r | |
97 | \r | |
98 | if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_RECEIVE) {\r | |
99 | *InterruptStatusPtr |= EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;\r | |
100 | }\r | |
101 | \r | |
102 | if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_TRANSMIT) {\r | |
103 | *InterruptStatusPtr |= EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;\r | |
104 | }\r | |
105 | \r | |
106 | if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_COMMAND) {\r | |
107 | *InterruptStatusPtr |= EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT;\r | |
108 | }\r | |
109 | \r | |
110 | if (InterruptFlags & PXE_STATFLAGS_GET_STATUS_SOFTWARE) {\r | |
111 | *InterruptStatusPtr |= EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT;\r | |
112 | }\r | |
113 | \r | |
114 | }\r | |
115 | \r | |
116 | if (TransmitBufferListPtr != NULL) {\r | |
117 | *TransmitBufferListPtr =\r | |
118 | (\r | |
119 | (snp->cdb.StatFlags & PXE_STATFLAGS_GET_STATUS_NO_TXBUFS_WRITTEN) ||\r | |
120 | (snp->cdb.StatFlags & PXE_STATFLAGS_GET_STATUS_TXBUF_QUEUE_EMPTY)\r | |
121 | ) ? 0 : (VOID *) (UINTN) db->TxBuffer[0];\r | |
122 | \r | |
123 | }\r | |
124 | \r | |
125 | return EFI_SUCCESS;\r | |
126 | }\r | |
127 | \r | |
128 | \r | |
129 | /**\r | |
130 | This is the SNP interface routine for getting the status\r | |
131 | This routine basically retrieves snp structure, checks the SNP state and\r | |
132 | calls the pxe_getstatus routine to actually get the undi status\r | |
133 | \r | |
134 | @param this context pointer\r | |
135 | @param InterruptStatusPtr a non null pointer gets the interrupt status\r | |
136 | @param TransmitBufferListPtrs a non null ointer gets the list of pointers of\r | |
137 | previously transmitted buffers whose\r | |
138 | transmission was completed asynchrnously.\r | |
139 | \r | |
140 | \r | |
141 | **/\r | |
142 | EFI_STATUS\r | |
143 | EFIAPI\r | |
144 | snp_undi32_get_status (\r | |
145 | IN EFI_SIMPLE_NETWORK_PROTOCOL * this,\r | |
146 | OUT UINT32 *InterruptStatusPtr OPTIONAL,\r | |
147 | OUT VOID **TransmitBufferListPtr OPTIONAL\r | |
148 | )\r | |
149 | {\r | |
150 | SNP_DRIVER *snp;\r | |
151 | EFI_TPL OldTpl;\r | |
152 | EFI_STATUS Status;\r | |
153 | \r | |
154 | if (this == NULL) {\r | |
155 | return EFI_INVALID_PARAMETER;\r | |
156 | }\r | |
157 | \r | |
158 | if (InterruptStatusPtr == NULL && TransmitBufferListPtr == NULL) {\r | |
159 | return EFI_INVALID_PARAMETER;\r | |
160 | }\r | |
161 | \r | |
162 | snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);\r | |
163 | \r | |
164 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
165 | \r | |
166 | if (snp == NULL) {\r | |
167 | return EFI_DEVICE_ERROR;\r | |
168 | }\r | |
169 | \r | |
170 | switch (snp->mode.State) {\r | |
171 | case EfiSimpleNetworkInitialized:\r | |
172 | break;\r | |
173 | \r | |
174 | case EfiSimpleNetworkStopped:\r | |
175 | Status = EFI_NOT_STARTED;\r | |
176 | goto ON_EXIT;\r | |
177 | \r | |
178 | default:\r | |
179 | Status = EFI_DEVICE_ERROR;\r | |
180 | goto ON_EXIT;\r | |
181 | }\r | |
182 | \r | |
183 | Status = pxe_getstatus (snp, InterruptStatusPtr, TransmitBufferListPtr);\r | |
184 | \r | |
185 | ON_EXIT:\r | |
186 | gBS->RestoreTPL (OldTpl);\r | |
187 | \r | |
188 | return Status;\r | |
189 | }\r |