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1 | /** @file\r |
2 | OHCI transfer scheduling routines.\r | |
3 | \r | |
4 | Copyright (c) 2013-2015 Intel Corporation.\r | |
5 | \r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | \r | |
17 | #include "OhcPeim.h"\r | |
18 | \r | |
19 | /**\r | |
20 | \r | |
21 | Convert Error code from OHCI format to EFI format\r | |
22 | \r | |
23 | @Param ErrorCode ErrorCode in OHCI format\r | |
24 | \r | |
25 | @retval ErrorCode in EFI format\r | |
26 | \r | |
27 | **/\r | |
28 | UINT32\r | |
29 | ConvertErrorCode (\r | |
30 | IN UINT32 ErrorCode\r | |
31 | )\r | |
32 | {\r | |
33 | UINT32 TransferResult;\r | |
34 | \r | |
35 | switch (ErrorCode) {\r | |
36 | case TD_NO_ERROR:\r | |
37 | TransferResult = EFI_USB_NOERROR;\r | |
38 | break;\r | |
39 | \r | |
40 | case TD_TOBE_PROCESSED:\r | |
41 | case TD_TOBE_PROCESSED_2:\r | |
42 | TransferResult = EFI_USB_ERR_NOTEXECUTE;\r | |
43 | break;\r | |
44 | \r | |
45 | case TD_DEVICE_STALL:\r | |
46 | TransferResult = EFI_USB_ERR_STALL;\r | |
47 | break;\r | |
48 | \r | |
49 | case TD_BUFFER_OVERRUN:\r | |
50 | case TD_BUFFER_UNDERRUN:\r | |
51 | TransferResult = EFI_USB_ERR_BUFFER;\r | |
52 | break;\r | |
53 | \r | |
54 | case TD_CRC_ERROR:\r | |
55 | TransferResult = EFI_USB_ERR_CRC;\r | |
56 | break;\r | |
57 | \r | |
58 | case TD_NO_RESPONSE:\r | |
59 | TransferResult = EFI_USB_ERR_TIMEOUT;\r | |
60 | break;\r | |
61 | \r | |
62 | case TD_BITSTUFFING_ERROR:\r | |
63 | TransferResult = EFI_USB_ERR_BITSTUFF;\r | |
64 | break;\r | |
65 | \r | |
66 | default:\r | |
67 | TransferResult = EFI_USB_ERR_SYSTEM;\r | |
68 | }\r | |
69 | \r | |
70 | return TransferResult;\r | |
71 | }\r | |
72 | \r | |
73 | \r | |
74 | /**\r | |
75 | \r | |
76 | Check TDs Results\r | |
77 | \r | |
78 | @Param Ohc UHC private data\r | |
79 | @Param Td TD_DESCRIPTOR\r | |
80 | @Param Result Result to return\r | |
81 | \r | |
82 | @retval TRUE means OK\r | |
83 | @retval FLASE means Error or Short packet\r | |
84 | \r | |
85 | **/\r | |
86 | BOOLEAN\r | |
87 | OhciCheckTDsResults (\r | |
88 | IN USB_OHCI_HC_DEV *Ohc,\r | |
89 | IN TD_DESCRIPTOR *Td,\r | |
90 | OUT UINT32 *Result\r | |
91 | )\r | |
92 | {\r | |
93 | UINT32 TdCompletionCode;\r | |
94 | \r | |
95 | *Result = EFI_USB_NOERROR;\r | |
96 | \r | |
97 | while (Td) {\r | |
98 | TdCompletionCode = Td->Word0.ConditionCode;\r | |
99 | \r | |
100 | *Result |= ConvertErrorCode(TdCompletionCode);\r | |
101 | //\r | |
102 | // if any error encountered, stop processing the left TDs.\r | |
103 | //\r | |
104 | if (*Result) {\r | |
105 | return FALSE;\r | |
106 | }\r | |
107 | \r | |
108 | Td = Td->NextTDPointer;\r | |
109 | }\r | |
110 | return TRUE;\r | |
111 | \r | |
112 | }\r | |
113 | \r | |
114 | \r | |
115 | /**\r | |
116 | \r | |
117 | Check the task status on an ED\r | |
118 | \r | |
119 | @Param Ed Pointer to the ED task that TD hooked on\r | |
120 | @Param HeadTd TD header for current transaction\r | |
121 | \r | |
122 | @retval Task Status Code\r | |
123 | \r | |
124 | **/\r | |
125 | \r | |
126 | UINT32\r | |
127 | CheckEDStatus (\r | |
128 | IN ED_DESCRIPTOR *Ed,\r | |
129 | IN TD_DESCRIPTOR *HeadTd\r | |
130 | )\r | |
131 | {\r | |
132 | while(HeadTd != NULL) {\r | |
133 | if (HeadTd->Word0.ConditionCode != 0) {\r | |
134 | return HeadTd->Word0.ConditionCode;\r | |
135 | }\r | |
136 | HeadTd = HeadTd->NextTDPointer;\r | |
137 | }\r | |
138 | \r | |
139 | if (OhciGetEDField (Ed, ED_TDHEAD_PTR) != OhciGetEDField (Ed, ED_TDTAIL_PTR)) {\r | |
140 | return TD_TOBE_PROCESSED;\r | |
141 | }\r | |
142 | \r | |
143 | return TD_NO_ERROR;\r | |
144 | }\r | |
145 | \r | |
146 | /**\r | |
147 | \r | |
148 | Check the task status\r | |
149 | \r | |
150 | @Param Ohc UHC private data\r | |
151 | @Param ListType Pipe type\r | |
152 | @Param Ed Pointer to the ED task hooked on\r | |
153 | @Param HeadTd Head of TD corresponding to the task\r | |
154 | @Param ErrorCode return the ErrorCode\r | |
155 | \r | |
156 | @retval EFI_SUCCESS Task done\r | |
157 | @retval EFI_NOT_READY Task on processing\r | |
158 | @retval EFI_DEVICE_ERROR Some error occured\r | |
159 | \r | |
160 | **/\r | |
161 | EFI_STATUS\r | |
162 | CheckIfDone (\r | |
163 | IN USB_OHCI_HC_DEV *Ohc,\r | |
164 | IN DESCRIPTOR_LIST_TYPE ListType,\r | |
165 | IN ED_DESCRIPTOR *Ed,\r | |
166 | IN TD_DESCRIPTOR *HeadTd,\r | |
167 | OUT UINT32 *ErrorCode\r | |
168 | )\r | |
169 | {\r | |
170 | *ErrorCode = TD_TOBE_PROCESSED;\r | |
171 | \r | |
172 | switch (ListType) {\r | |
173 | case CONTROL_LIST:\r | |
174 | if (OhciGetHcCommandStatus (Ohc, CONTROL_LIST_FILLED) != 0) {\r | |
175 | return EFI_NOT_READY;\r | |
176 | }\r | |
177 | break;\r | |
178 | \r | |
179 | case BULK_LIST:\r | |
180 | if (OhciGetHcCommandStatus (Ohc, BULK_LIST_FILLED) != 0) {\r | |
181 | return EFI_NOT_READY;\r | |
182 | }\r | |
183 | break;\r | |
184 | \r | |
185 | default:\r | |
186 | break;\r | |
187 | }\r | |
188 | \r | |
189 | *ErrorCode = CheckEDStatus (Ed, HeadTd);\r | |
190 | \r | |
191 | \r | |
192 | if (*ErrorCode == TD_NO_ERROR) {\r | |
193 | return EFI_SUCCESS;\r | |
194 | } else if (*ErrorCode == TD_TOBE_PROCESSED) {\r | |
195 | return EFI_NOT_READY;\r | |
196 | } else {\r | |
197 | return EFI_DEVICE_ERROR;\r | |
198 | }\r | |
199 | }\r | |
200 | \r | |
201 | \r | |
202 | /**\r | |
203 | \r | |
204 | Convert TD condition code to Efi Status\r | |
205 | \r | |
206 | @Param ConditionCode Condition code to convert\r | |
207 | \r | |
208 | @retval EFI_SUCCESS No error occured\r | |
209 | @retval EFI_NOT_READY TD still on processing\r | |
210 | @retval EFI_DEVICE_ERROR Error occured in processing TD\r | |
211 | \r | |
212 | **/\r | |
213 | \r | |
214 | EFI_STATUS\r | |
215 | OhciTDConditionCodeToStatus (\r | |
216 | IN UINT32 ConditionCode\r | |
217 | )\r | |
218 | {\r | |
219 | if (ConditionCode == TD_NO_ERROR) {\r | |
220 | return EFI_SUCCESS;\r | |
221 | }\r | |
222 | \r | |
223 | if (ConditionCode == TD_TOBE_PROCESSED) {\r | |
224 | return EFI_NOT_READY;\r | |
225 | }\r | |
226 | \r | |
227 | return EFI_DEVICE_ERROR;\r | |
228 | }\r | |
229 | \r |