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1 | /** @file\r | |
2 | \r | |
3 | This file contains the definination for host controller schedule routines.\r | |
4 | \r | |
5 | Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
7 | \r | |
8 | **/\r | |
9 | \r | |
10 | #ifndef _EFI_EHCI_SCHED_H_\r | |
11 | #define _EFI_EHCI_SCHED_H_\r | |
12 | \r | |
13 | /**\r | |
14 | Initialize the schedule data structure such as frame list.\r | |
15 | \r | |
16 | @param Ehc The EHCI device to init schedule data for.\r | |
17 | \r | |
18 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resource to init schedule data.\r | |
19 | @retval EFI_SUCCESS The schedule data is initialized.\r | |
20 | \r | |
21 | **/\r | |
22 | EFI_STATUS\r | |
23 | EhcInitSched (\r | |
24 | IN USB2_HC_DEV *Ehc\r | |
25 | );\r | |
26 | \r | |
27 | /**\r | |
28 | Free the schedule data. It may be partially initialized.\r | |
29 | \r | |
30 | @param Ehc The EHCI device.\r | |
31 | \r | |
32 | **/\r | |
33 | VOID\r | |
34 | EhcFreeSched (\r | |
35 | IN USB2_HC_DEV *Ehc\r | |
36 | );\r | |
37 | \r | |
38 | /**\r | |
39 | Link the queue head to the asynchronous schedule list.\r | |
40 | UEFI only supports one CTRL/BULK transfer at a time\r | |
41 | due to its interfaces. This simplifies the AsynList\r | |
42 | management: A reclamation header is always linked to\r | |
43 | the AsyncListAddr, the only active QH is appended to it.\r | |
44 | \r | |
45 | @param Ehc The EHCI device.\r | |
46 | @param Qh The queue head to link.\r | |
47 | \r | |
48 | **/\r | |
49 | VOID\r | |
50 | EhcLinkQhToAsync (\r | |
51 | IN USB2_HC_DEV *Ehc,\r | |
52 | IN EHC_QH *Qh\r | |
53 | );\r | |
54 | \r | |
55 | /**\r | |
56 | Unlink a queue head from the asynchronous schedule list.\r | |
57 | Need to synchronize with hardware.\r | |
58 | \r | |
59 | @param Ehc The EHCI device.\r | |
60 | @param Qh The queue head to unlink.\r | |
61 | \r | |
62 | **/\r | |
63 | VOID\r | |
64 | EhcUnlinkQhFromAsync (\r | |
65 | IN USB2_HC_DEV *Ehc,\r | |
66 | IN EHC_QH *Qh\r | |
67 | );\r | |
68 | \r | |
69 | /**\r | |
70 | Link a queue head for interrupt transfer to the periodic\r | |
71 | schedule frame list. This code is very much the same as\r | |
72 | that in UHCI.\r | |
73 | \r | |
74 | @param Ehc The EHCI device.\r | |
75 | @param Qh The queue head to link.\r | |
76 | \r | |
77 | **/\r | |
78 | VOID\r | |
79 | EhcLinkQhToPeriod (\r | |
80 | IN USB2_HC_DEV *Ehc,\r | |
81 | IN EHC_QH *Qh\r | |
82 | );\r | |
83 | \r | |
84 | /**\r | |
85 | Unlink an interrupt queue head from the periodic\r | |
86 | schedule frame list.\r | |
87 | \r | |
88 | @param Ehc The EHCI device.\r | |
89 | @param Qh The queue head to unlink.\r | |
90 | \r | |
91 | **/\r | |
92 | VOID\r | |
93 | EhcUnlinkQhFromPeriod (\r | |
94 | IN USB2_HC_DEV *Ehc,\r | |
95 | IN EHC_QH *Qh\r | |
96 | );\r | |
97 | \r | |
98 | /**\r | |
99 | Execute the transfer by polling the URB. This is a synchronous operation.\r | |
100 | \r | |
101 | @param Ehc The EHCI device.\r | |
102 | @param Urb The URB to execute.\r | |
103 | @param TimeOut The time to wait before abort, in millisecond.\r | |
104 | \r | |
105 | @retval EFI_DEVICE_ERROR The transfer failed due to transfer error.\r | |
106 | @retval EFI_TIMEOUT The transfer failed due to time out.\r | |
107 | @retval EFI_SUCCESS The transfer finished OK.\r | |
108 | \r | |
109 | **/\r | |
110 | EFI_STATUS\r | |
111 | EhcExecTransfer (\r | |
112 | IN USB2_HC_DEV *Ehc,\r | |
113 | IN URB *Urb,\r | |
114 | IN UINTN TimeOut\r | |
115 | );\r | |
116 | \r | |
117 | /**\r | |
118 | Delete a single asynchronous interrupt transfer for\r | |
119 | the device and endpoint.\r | |
120 | \r | |
121 | @param Ehc The EHCI device.\r | |
122 | @param DevAddr The address of the target device.\r | |
123 | @param EpNum The endpoint of the target.\r | |
124 | @param DataToggle Return the next data toggle to use.\r | |
125 | \r | |
126 | @retval EFI_SUCCESS An asynchronous transfer is removed.\r | |
127 | @retval EFI_NOT_FOUND No transfer for the device is found.\r | |
128 | \r | |
129 | **/\r | |
130 | EFI_STATUS\r | |
131 | EhciDelAsyncIntTransfer (\r | |
132 | IN USB2_HC_DEV *Ehc,\r | |
133 | IN UINT8 DevAddr,\r | |
134 | IN UINT8 EpNum,\r | |
135 | OUT UINT8 *DataToggle\r | |
136 | );\r | |
137 | \r | |
138 | /**\r | |
139 | Remove all the asynchronous interrutp transfers.\r | |
140 | \r | |
141 | @param Ehc The EHCI device.\r | |
142 | \r | |
143 | **/\r | |
144 | VOID\r | |
145 | EhciDelAllAsyncIntTransfers (\r | |
146 | IN USB2_HC_DEV *Ehc\r | |
147 | );\r | |
148 | \r | |
149 | /**\r | |
150 | Insert a single asynchronous interrupt transfer for\r | |
151 | the device and endpoint.\r | |
152 | \r | |
153 | @param Ehc The EHCI device.\r | |
154 | @param DevAddr The device address.\r | |
155 | @param EpAddr Endpoint addrress & its direction.\r | |
156 | @param DevSpeed The device speed.\r | |
157 | @param Toggle Initial data toggle to use.\r | |
158 | @param MaxPacket The max packet length of the endpoint.\r | |
159 | @param Hub The transaction translator to use.\r | |
160 | @param DataLen The length of data buffer.\r | |
161 | @param Callback The function to call when data is transferred.\r | |
162 | @param Context The context to the callback.\r | |
163 | @param Interval The interval for interrupt transfer.\r | |
164 | \r | |
165 | @return Created URB or NULL.\r | |
166 | \r | |
167 | **/\r | |
168 | URB *\r | |
169 | EhciInsertAsyncIntTransfer (\r | |
170 | IN USB2_HC_DEV *Ehc,\r | |
171 | IN UINT8 DevAddr,\r | |
172 | IN UINT8 EpAddr,\r | |
173 | IN UINT8 DevSpeed,\r | |
174 | IN UINT8 Toggle,\r | |
175 | IN UINTN MaxPacket,\r | |
176 | IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Hub,\r | |
177 | IN UINTN DataLen,\r | |
178 | IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback,\r | |
179 | IN VOID *Context,\r | |
180 | IN UINTN Interval\r | |
181 | );\r | |
182 | \r | |
183 | /**\r | |
184 | Interrupt transfer periodic check handler.\r | |
185 | \r | |
186 | @param Event Interrupt event.\r | |
187 | @param Context Pointer to USB2_HC_DEV.\r | |
188 | \r | |
189 | **/\r | |
190 | VOID\r | |
191 | EFIAPI\r | |
192 | EhcMonitorAsyncRequests (\r | |
193 | IN EFI_EVENT Event,\r | |
194 | IN VOID *Context\r | |
195 | );\r | |
196 | \r | |
197 | #endif\r |