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
|
/*
* spreadspace avr utils
*
*
* Copyright (C) 2013 Christian Pointner <equinox@spreadspace.org>
*
* This file is part of spreadspace avr utils.
*
* spreadspace avr utils is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* spreadspace avr utils is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
*/
#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
#include <avr/power.h>
#include <string.h>
#include "util.h"
#include "led.h"
/*
LUFA Library
Copyright (C) Dean Camera, 2012.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
#include <LUFA/Version.h>
#include <LUFA/Drivers/USB/USB.h>
#include "lufa-descriptor-rndis.h"
#define ADAPTER_MAC_ADDR {0x02, 0x00, 0x02, 0x00, 0x02, 0x00}
#define MY_MAC_ADDR {0x01, 0x02, 0x03, 0x04, 0x05, 0x06}
/** 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_Device_t Ethernet_RNDIS_Interface =
{
.Config =
{
.ControlInterfaceNumber = 0,
.DataINEndpointNumber = CDC_TX_EPNUM,
.DataINEndpointSize = CDC_TXRX_EPSIZE,
.DataINEndpointDoubleBank = false,
.DataOUTEndpointNumber = CDC_RX_EPNUM,
.DataOUTEndpointSize = CDC_TXRX_EPSIZE,
.DataOUTEndpointDoubleBank = false,
.NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
.NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
.NotificationEndpointDoubleBank = false,
.AdapterVendorDescription = "LUFA RNDIS Adapter",
.AdapterMACAddress = {ADAPTER_MAC_ADDR},
},
};
/** Event handler for the library USB Configuration Changed event. */
void EVENT_USB_Device_ConfigurationChanged(void)
{
RNDIS_Device_ConfigureEndpoints(&Ethernet_RNDIS_Interface);
}
/** Event handler for the library USB Control Request reception event. */
void EVENT_USB_Device_ControlRequest(void)
{
RNDIS_Device_ProcessControlRequest(&Ethernet_RNDIS_Interface);
}
/* end LUFA RNDIS Class driver specific definitions*/
typedef uint8_t mac_addr_t[6];
typedef struct __attribute__((__packed__))
{
mac_addr_t dest;
mac_addr_t src;
uint16_t ether_type;
} ethernet_frame_header_t;
typedef struct {
uint8_t data[1550];
uint16_t len;
} ethernet_buf_t;
ethernet_buf_t eth_recv_buf;
ethernet_frame_header_t* eth_recv_hdr = (ethernet_frame_header_t*)eth_recv_buf.data;
mac_addr_t my_mac = MY_MAC_ADDR;
int main(void)
{
MCUSR &= ~(1 << WDRF);
wdt_disable();
cpu_init();
led_init();
USB_Init();
sei();
led_off();
for (;;) {
if (RNDIS_Device_IsPacketReceived(&Ethernet_RNDIS_Interface))
{
led_on();
RNDIS_Device_ReadPacket(&Ethernet_RNDIS_Interface, eth_recv_buf.data, &(eth_recv_buf.len));
memcpy(eth_recv_hdr->dest, eth_recv_hdr->src, sizeof(mac_addr_t));
memcpy(eth_recv_hdr->src, my_mac, sizeof(mac_addr_t));
RNDIS_Device_SendPacket(&Ethernet_RNDIS_Interface, eth_recv_buf.data, eth_recv_buf.len);
led_off();
}
RNDIS_Device_USBTask(&Ethernet_RNDIS_Interface);
USB_USBTask();
}
}
|
