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1/** @file\r
2\r
3 USB bus enumeration interface.\r
4\r
5Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>\r
6SPDX-License-Identifier: BSD-2-Clause-Patent\r
7\r
8**/\r
9\r
10#ifndef _USB_ENUMERATION_H_\r
11#define _USB_ENUMERATION_H_\r
12\r
13//\r
14// Advance the byte and bit to the next bit, adjust byte accordingly.\r
15//\r
16#define USB_NEXT_BIT(Byte, Bit) \\r
17 do { \\r
18 (Bit)++; \\r
19 if ((Bit) > 7) { \\r
20 (Byte)++; \\r
21 (Bit) = 0; \\r
22 } \\r
23 } while (0)\r
24\r
25//\r
26// Common interface used by usb bus enumeration process.\r
27// This interface is defined to mask the difference between\r
28// the root hub and normal hub. So, bus enumeration code\r
29// can be shared by both root hub and normal hub\r
30//\r
31typedef\r
32EFI_STATUS\r
33(*USB_HUB_INIT) (\r
34 IN USB_INTERFACE *UsbIf\r
35 );\r
36\r
37//\r
38// Get the port status. This function is required to\r
39// ACK the port change bits although it will return\r
40// the port changes in PortState. Bus enumeration code\r
41// doesn't need to ACK the port change bits.\r
42//\r
43typedef\r
44EFI_STATUS\r
45(*USB_HUB_GET_PORT_STATUS) (\r
46 IN USB_INTERFACE *UsbIf,\r
47 IN UINT8 Port,\r
48 OUT EFI_USB_PORT_STATUS *PortState\r
49 );\r
50\r
51typedef\r
52VOID\r
53(*USB_HUB_CLEAR_PORT_CHANGE) (\r
54 IN USB_INTERFACE *HubIf,\r
55 IN UINT8 Port\r
56 );\r
57\r
58typedef\r
59EFI_STATUS\r
60(*USB_HUB_SET_PORT_FEATURE) (\r
61 IN USB_INTERFACE *UsbIf,\r
62 IN UINT8 Port,\r
63 IN EFI_USB_PORT_FEATURE Feature\r
64 );\r
65\r
66typedef\r
67EFI_STATUS\r
68(*USB_HUB_CLEAR_PORT_FEATURE) (\r
69 IN USB_INTERFACE *UsbIf,\r
70 IN UINT8 Port,\r
71 IN EFI_USB_PORT_FEATURE Feature\r
72 );\r
73\r
74typedef\r
75EFI_STATUS\r
76(*USB_HUB_RESET_PORT) (\r
77 IN USB_INTERFACE *UsbIf,\r
78 IN UINT8 Port\r
79 );\r
80\r
81typedef\r
82EFI_STATUS\r
83(*USB_HUB_RELEASE) (\r
84 IN USB_INTERFACE *UsbIf\r
85 );\r
86\r
87/**\r
88 Return the endpoint descriptor in this interface.\r
89\r
90 @param UsbIf The interface to search in.\r
91 @param EpAddr The address of the endpoint to return.\r
92\r
93 @return The endpoint descriptor or NULL.\r
94\r
95**/\r
96USB_ENDPOINT_DESC *\r
97UsbGetEndpointDesc (\r
98 IN USB_INTERFACE *UsbIf,\r
99 IN UINT8 EpAddr\r
100 );\r
101\r
102/**\r
103 Select an alternate setting for the interface.\r
104 Each interface can have several mutually exclusive\r
105 settings. Only one setting is active. It will\r
106 also reset its endpoints' toggle to zero.\r
107\r
108 @param IfDesc The interface descriptor to set.\r
109 @param Alternate The alternate setting number to locate.\r
110\r
111 @retval EFI_NOT_FOUND There is no setting with this alternate index.\r
112 @retval EFI_SUCCESS The interface is set to Alternate setting.\r
113\r
114**/\r
115EFI_STATUS\r
116UsbSelectSetting (\r
117 IN USB_INTERFACE_DESC *IfDesc,\r
118 IN UINT8 Alternate\r
119 );\r
120\r
121/**\r
122 Select a new configuration for the device. Each\r
123 device may support several configurations.\r
124\r
125 @param Device The device to select configuration.\r
126 @param ConfigIndex The index of the configuration ( != 0).\r
127\r
128 @retval EFI_NOT_FOUND There is no configuration with the index.\r
129 @retval EFI_OUT_OF_RESOURCES Failed to allocate resource.\r
130 @retval EFI_SUCCESS The configuration is selected.\r
131\r
132**/\r
133EFI_STATUS\r
134UsbSelectConfig (\r
135 IN USB_DEVICE *Device,\r
136 IN UINT8 ConfigIndex\r
137 );\r
138\r
139/**\r
140 Remove the current device configuration.\r
141\r
142 @param Device The USB device to remove configuration from.\r
143\r
144 @return None.\r
145\r
146**/\r
147EFI_STATUS\r
148UsbRemoveConfig (\r
149 IN USB_DEVICE *Device\r
150 );\r
151\r
152/**\r
153 Remove the device and all its children from the bus.\r
154\r
155 @param Device The device to remove.\r
156\r
157 @retval EFI_SUCCESS The device is removed.\r
158\r
159**/\r
160EFI_STATUS\r
161UsbRemoveDevice (\r
162 IN USB_DEVICE *Device\r
163 );\r
164\r
165/**\r
166 Enumerate all the changed hub ports.\r
167\r
168 @param Event The event that is triggered.\r
169 @param Context The context to the event.\r
170\r
171 @return None.\r
172\r
173**/\r
174VOID\r
175EFIAPI\r
176UsbHubEnumeration (\r
177 IN EFI_EVENT Event,\r
178 IN VOID *Context\r
179 );\r
180\r
181/**\r
182 Enumerate all the changed hub ports.\r
183\r
184 @param Event The event that is triggered.\r
185 @param Context The context to the event.\r
186\r
187 @return None.\r
188\r
189**/\r
190VOID\r
191EFIAPI\r
192UsbRootHubEnumeration (\r
193 IN EFI_EVENT Event,\r
194 IN VOID *Context\r
195 );\r
196\r
197#endif\r