Blame view

lufa-master/Projects/Webserver/USBHostMode.c 5.28 KB
142ecdaf   rguillom   first commit
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
  /*
               LUFA Library
       Copyright (C) Dean Camera, 2019.
  
    dean [at] fourwalledcubicle [dot] com
             www.lufa-lib.org
  */
  
  /*
    Copyright 2019  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  
    Permission to use, copy, modify, distribute, and sell this
    software and its documentation for any purpose is hereby granted
    without fee, provided that the above copyright notice appear in
    all copies and that both that the copyright notice and this
    permission notice and warranty disclaimer appear in supporting
    documentation, and that the name of the author not be used in
    advertising or publicity pertaining to distribution of the
    software without specific, written prior permission.
  
    The author disclaims all warranties with regard to this
    software, including all implied warranties of merchantability
    and fitness.  In no event shall the author be liable for any
    special, indirect or consequential damages or any damages
    whatsoever resulting from loss of use, data or profits, whether
    in an action of contract, negligence or other tortious action,
    arising out of or in connection with the use or performance of
    this software.
  */
  
  /** \file
   *
   *  USB Host Mode management functions and variables. This file contains the LUFA code required to
   *  manage the USB RNDIS host mode.
   */
  
  #include "USBHostMode.h"
  
  /** LUFA RNDIS Class driver interface configuration and state information. This structure is
   *  passed to all RNDIS Class driver functions, so that multiple instances of the same class
   *  within a device can be differentiated from one another.
   */
  USB_ClassInfo_RNDIS_Host_t Ethernet_RNDIS_Interface_Host =
  	{
  		.Config =
  			{
  				.DataINPipe             =
  					{
  						.Address        = (PIPE_DIR_IN  | 1),
  						.Banks          = 1,
  					},
  				.DataOUTPipe            =
  					{
  						.Address        = (PIPE_DIR_OUT | 2),
  						.Banks          = 1,
  					},
  				.NotificationPipe       =
  					{
  						.Address        = (PIPE_DIR_IN  | 3),
  						.Banks          = 1,
  					},
  				.HostMaxPacketSize      = UIP_CONF_BUFFER_SIZE,
  			},
  	};
  
  
  /** USB host mode management task. This function manages the RNDIS Host class driver and uIP stack when the device is
   *  initialized in USB host mode.
   */
  void USBHostMode_USBTask(void)
  {
  	if (USB_CurrentMode != USB_MODE_Host)
  	  return;
  
  	uIPManagement_ManageNetwork();
  
  	RNDIS_Host_USBTask(&Ethernet_RNDIS_Interface_Host);
  }
  
  /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
   *  starts the library USB task to begin the enumeration and USB management process.
   */
  void EVENT_USB_Host_DeviceAttached(void)
  {
  	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  }
  
  /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
   *  stops the library USB task management process.
   */
  void EVENT_USB_Host_DeviceUnattached(void)
  {
  	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  }
  
  /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
   *  enumerated by the host and is now ready to be used by the application.
   */
  void EVENT_USB_Host_DeviceEnumerationComplete(void)
  {
  	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  
  	uint16_t ConfigDescriptorSize;
  	uint8_t  ConfigDescriptorData[512];
  
  	if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
  	                                       sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
  	{
  		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  		return;
  	}
  
  	if (RNDIS_Host_ConfigurePipes(&Ethernet_RNDIS_Interface_Host,
  	                              ConfigDescriptorSize, ConfigDescriptorData) != RNDIS_ENUMERROR_NoError)
  	{
  		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  		return;
  	}
  
  	if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
  	{
  		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  		return;
  	}
  
  	if (RNDIS_Host_InitializeDevice(&Ethernet_RNDIS_Interface_Host) != HOST_SENDCONTROL_Successful)
  	{
  		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  		USB_Host_SetDeviceConfiguration(0);
  		return;
  	}
  
  	uint32_t PacketFilter = (REMOTE_NDIS_PACKET_DIRECTED | REMOTE_NDIS_PACKET_BROADCAST);
  	if (RNDIS_Host_SetRNDISProperty(&Ethernet_RNDIS_Interface_Host, OID_GEN_CURRENT_PACKET_FILTER,
  	                                &PacketFilter, sizeof(PacketFilter)) != HOST_SENDCONTROL_Successful)
  	{
  		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  		USB_Host_SetDeviceConfiguration(0);
  		return;
  	}
  
  	if (RNDIS_Host_QueryRNDISProperty(&Ethernet_RNDIS_Interface_Host, OID_802_3_CURRENT_ADDRESS,
  	                                  &MACAddress, sizeof(MACAddress)) != HOST_SENDCONTROL_Successful)
  	{
  		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  		USB_Host_SetDeviceConfiguration(0);
  		return;
  	}
  
  	/* Initialize uIP stack */
  	uIPManagement_Init();
  
  	LEDs_SetAllLEDs(LEDMASK_USB_READY);
  }
  
  /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
  void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
  {
  	USB_Disable();
  
  	LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  	for(;;);
  }
  
  /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
   *  enumerating an attached USB device.
   */
  void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
  {
  	LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  }