Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2012.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Main source file for the RNDISEthernet demo. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "RNDISEthernet.h"
  38
  39 /** LUFA RNDIS Class driver interface configuration and state information. This structure is
  40  *  passed to all RNDIS Class driver functions, so that multiple instances of the same class
  41  *  within a device can be differentiated from one another.
  42  */
  43 USB_ClassInfo_RNDIS_Device_t Ethernet_RNDIS_Interface =
  44         {
  45                 .Config =
  46                         {
  47                                 .ControlInterfaceNumber         = 0,
  48                                 .DataINEndpoint                 =
  49                                         {
  50                                                 .Address                = CDC_TX_EPADDR,
  51                                                 .Size                   = CDC_TXRX_EPSIZE,
  52                                                 .Banks                  = 1,
  53                                         },
  54                                 .DataOUTEndpoint                =
  55                                         {
  56                                                 .Address                = CDC_RX_EPADDR,
  57                                                 .Size                   = CDC_TXRX_EPSIZE,
  58                                                 .Banks                  = 1,
  59                                         },
  60                                 .NotificationEndpoint           =
  61                                         {
  62                                                 .Address                = CDC_NOTIFICATION_EPADDR,
  63                                                 .Size                   = CDC_NOTIFICATION_EPSIZE,
  64                                                 .Banks                  = 1,
  65                                         },
  66                                 .AdapterVendorDescription       = "LUFA RNDIS Demo Adapter",
  67                                 .AdapterMACAddress              = {ADAPTER_MAC_ADDRESS},
  68                         },
  69         };
  70
  71 /** Global to store the incoming frame from the host before it is processed by the device. */
  72 static Ethernet_Frame_Info_t FrameIN;
  73
  74 /** Global to store the outgoing frame created in the device before it is sent to the host. */
  75 static Ethernet_Frame_Info_t FrameOUT;
  76
  77 /** Main program entry point. This routine contains the overall program flow, including initial
  78  *  setup of all components and the main program loop.
  79  */
  80 int main(void)
  81 {
  82         SetupHardware();
  83
  84         TCP_Init();
  85         Webserver_Init();
  86
  87         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  88         sei();
  89
  90         for (;;)
  91         {
  92                 if (RNDIS_Device_IsPacketReceived(&Ethernet_RNDIS_Interface))
  93                 {
  94                         LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
  95
  96                         RNDIS_Device_ReadPacket(&Ethernet_RNDIS_Interface, &FrameIN.FrameData, &FrameIN.FrameLength);
  97                         Ethernet_ProcessPacket(&FrameIN, &FrameOUT);
  98
  99                         if (FrameOUT.FrameLength)
 100                         {
 101                                 RNDIS_Device_SendPacket(&Ethernet_RNDIS_Interface, &FrameOUT.FrameData, FrameOUT.FrameLength);
 102                                 FrameOUT.FrameLength = 0;
 103                         }
 104
 105                         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 106                 }
 107
 108                 TCP_TCPTask(&Ethernet_RNDIS_Interface, &FrameOUT);
 109
 110                 RNDIS_Device_USBTask(&Ethernet_RNDIS_Interface);
 111                 USB_USBTask();
 112         }
 113 }
 114
 115 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 116 void SetupHardware(void)
 117 {
 118         /* Disable watchdog if enabled by bootloader/fuses */
 119         MCUSR &= ~(1 << WDRF);
 120         wdt_disable();
 121
 122         /* Disable clock division */
 123         clock_prescale_set(clock_div_1);
 124
 125         /* Hardware Initialization */
 126         LEDs_Init();
 127         Serial_Init(9600, false);
 128         USB_Init();
 129
 130         /* Create a stdio stream for the serial port for stdin and stdout */
 131         Serial_CreateStream(NULL);
 132 }
 133
 134 /** Event handler for the library USB Connection event. */
 135 void EVENT_USB_Device_Connect(void)
 136 {
 137         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 138 }
 139
 140 /** Event handler for the library USB Disconnection event. */
 141 void EVENT_USB_Device_Disconnect(void)
 142 {
 143         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 144 }
 145
 146 /** Event handler for the library USB Configuration Changed event. */
 147 void EVENT_USB_Device_ConfigurationChanged(void)
 148 {
 149         bool ConfigSuccess = true;
 150
 151         ConfigSuccess &= RNDIS_Device_ConfigureEndpoints(&Ethernet_RNDIS_Interface);
 152
 153         LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 154 }
 155
 156 /** Event handler for the library USB Control Request reception event. */
 157 void EVENT_USB_Device_ControlRequest(void)
 158 {
 159         RNDIS_Device_ProcessControlRequest(&Ethernet_RNDIS_Interface);
 160 }
 161