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
176
177
178
179
180
181
182
183
184
185
|
/** @file
Common Library for PEI USB
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved. <BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UsbPeim.h"
#include "PeiUsbLib.h"
/**
Get a given usb descriptor.
@param PeiServices General-purpose services that are available to every PEIM.
@param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.
@param Value Request Value.
@param Index Request Index.
@param DescriptorLength Request descriptor Length.
@param Descriptor Request descriptor.
@retval EFI_SUCCESS Usb descriptor is obtained successfully.
@retval EFI_DEVICE_ERROR Cannot get the usb descriptor due to a hardware error.
@retval Others Other failure occurs.
**/
EFI_STATUS
PeiUsbGetDescriptor (
IN EFI_PEI_SERVICES **PeiServices,
IN PEI_USB_IO_PPI *UsbIoPpi,
IN UINT16 Value,
IN UINT16 Index,
IN UINT16 DescriptorLength,
OUT VOID *Descriptor
)
{
EFI_USB_DEVICE_REQUEST DevReq;
ASSERT (UsbIoPpi != NULL);
DevReq.RequestType = USB_DEV_GET_DESCRIPTOR_REQ_TYPE;
DevReq.Request = USB_DEV_GET_DESCRIPTOR;
DevReq.Value = Value;
DevReq.Index = Index;
DevReq.Length = DescriptorLength;
return UsbIoPpi->UsbControlTransfer (
PeiServices,
UsbIoPpi,
&DevReq,
EfiUsbDataIn,
PcdGet32 (PcdUsbTransferTimeoutValue),
Descriptor,
DescriptorLength
);
}
/**
Set a usb device with a specified address.
@param PeiServices General-purpose services that are available to every PEIM.
@param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.
@param AddressValue The address to assign.
@retval EFI_SUCCESS Usb device address is set successfully.
@retval EFI_DEVICE_ERROR Cannot set the usb address due to a hardware error.
@retval Others Other failure occurs.
**/
EFI_STATUS
PeiUsbSetDeviceAddress (
IN EFI_PEI_SERVICES **PeiServices,
IN PEI_USB_IO_PPI *UsbIoPpi,
IN UINT16 AddressValue
)
{
EFI_USB_DEVICE_REQUEST DevReq;
ASSERT (UsbIoPpi != NULL);
DevReq.RequestType = USB_DEV_SET_ADDRESS_REQ_TYPE;
DevReq.Request = USB_DEV_SET_ADDRESS;
DevReq.Value = AddressValue;
DevReq.Index = 0;
DevReq.Length = 0;
return UsbIoPpi->UsbControlTransfer (
PeiServices,
UsbIoPpi,
&DevReq,
EfiUsbNoData,
PcdGet32 (PcdUsbTransferTimeoutValue),
NULL,
0
);
}
/**
Configure a usb device to Configuration 1.
@param PeiServices General-purpose services that are available to every PEIM.
@param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.
@retval EFI_SUCCESS Usb device is set to use Configuration 1 successfully.
@retval EFI_DEVICE_ERROR Cannot set the usb device due to a hardware error.
@retval Others Other failure occurs.
**/
EFI_STATUS
PeiUsbSetConfiguration (
IN EFI_PEI_SERVICES **PeiServices,
IN PEI_USB_IO_PPI *UsbIoPpi
)
{
EFI_USB_DEVICE_REQUEST DevReq;
ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));
DevReq.RequestType = USB_DEV_SET_CONFIGURATION_REQ_TYPE;
DevReq.Request = USB_DEV_SET_CONFIGURATION;
DevReq.Value = 1;
return UsbIoPpi->UsbControlTransfer (
PeiServices,
UsbIoPpi,
&DevReq,
EfiUsbNoData,
PcdGet32 (PcdUsbTransferTimeoutValue),
NULL,
0
);
}
/**
Judge if the port is connected with a usb device or not.
@param PortStatus The usb port status gotten.
@retval TRUE A usb device is connected with the port.
@retval FALSE No usb device is connected with the port.
**/
BOOLEAN
IsPortConnect (
IN UINT16 PortStatus
)
{
//
// return the bit 0 value of PortStatus
//
if ((PortStatus & USB_PORT_STAT_CONNECTION) != 0) {
return TRUE;
} else {
return FALSE;
}
}
/**
Get device speed according to port status.
@param PortStatus The usb port status gotten.
@return Device speed value.
**/
UINTN
PeiUsbGetDeviceSpeed (
IN UINT16 PortStatus
)
{
if ((PortStatus & USB_PORT_STAT_LOW_SPEED) != 0) {
return EFI_USB_SPEED_LOW;
} else if ((PortStatus & USB_PORT_STAT_HIGH_SPEED) != 0){
return EFI_USB_SPEED_HIGH;
} else if ((PortStatus & USB_PORT_STAT_SUPER_SPEED) != 0) {
return EFI_USB_SPEED_SUPER;
} else {
return EFI_USB_SPEED_FULL;
}
}
|
