Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2011  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
  49                                 .DataINEndpointNumber           = CDC_TX_EPNUM,
  50                                 .DataINEndpointSize             = CDC_TXRX_EPSIZE,
  51                                 .DataINEndpointDoubleBank       = false,
  52
  53                                 .DataOUTEndpointNumber          = CDC_RX_EPNUM,
  54                                 .DataOUTEndpointSize            = CDC_TXRX_EPSIZE,
  55                                 .DataOUTEndpointDoubleBank      = false,
  56
  57                                 .NotificationEndpointNumber     = CDC_NOTIFICATION_EPNUM,
  58                                 .NotificationEndpointSize       = CDC_NOTIFICATION_EPSIZE,
  59                                 .NotificationEndpointDoubleBank = false,
  60
  61                                 .AdapterVendorDescription       = "LUFA RNDIS Demo Adapter",
  62                                 .AdapterMACAddress              = {ADAPTER_MAC_ADDRESS},
  63                         },
  64         };
  65
  66 static Ethernet_Frame_Info_t FrameIN;
  67 static Ethernet_Frame_Info_t FrameOUT;
  68
  69 /** Main program entry point. This routine contains the overall program flow, including initial
  70  *  setup of all components and the main program loop.
  71  */
  72 int main(void)
  73 {
  74         SetupHardware();
  75
  76         TCP_Init();
  77         Webserver_Init();
  78
  79         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  80         sei();
  81
  82         for (;;)
  83         {
  84                 if (RNDIS_Device_IsPacketReceived(&Ethernet_RNDIS_Interface))
  85                 {
  86                         LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
  87
  88                         RNDIS_Device_ReadPacket(&Ethernet_RNDIS_Interface, &FrameIN.FrameData, &FrameIN.FrameLength);
  89                         Ethernet_ProcessPacket(&FrameIN, &FrameOUT);
  90
  91                         if (FrameOUT.FrameLength)
  92                         {
  93                                 RNDIS_Device_SendPacket(&Ethernet_RNDIS_Interface, &FrameOUT.FrameData, FrameOUT.FrameLength);
  94                                 FrameOUT.FrameLength = 0;
  95                         }
  96
  97                         LEDs_SetAllLEDs(LEDMASK_USB_READY);
  98                 }
  99
 100                 TCP_TCPTask(&Ethernet_RNDIS_Interface, &FrameOUT);
 101
 102                 RNDIS_Device_USBTask(&Ethernet_RNDIS_Interface);
 103                 USB_USBTask();
 104         }
 105 }
 106
 107 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 108 void SetupHardware(void)
 109 {
 110         /* Disable watchdog if enabled by bootloader/fuses */
 111         MCUSR &= ~(1 << WDRF);
 112         wdt_disable();
 113
 114         /* Disable clock division */
 115         clock_prescale_set(clock_div_1);
 116
 117         /* Hardware Initialization */
 118         LEDs_Init();
 119         Serial_Init(9600, false);
 120         USB_Init();
 121
 122         /* Create a stdio stream for the serial port for stdin and stdout */
 123         Serial_CreateStream(NULL);
 124 }
 125
 126 /** Event handler for the library USB Connection event. */
 127 void EVENT_USB_Device_Connect(void)
 128 {
 129         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 130 }
 131
 132 /** Event handler for the library USB Disconnection event. */
 133 void EVENT_USB_Device_Disconnect(void)
 134 {
 135         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 136 }
 137
 138 /** Event handler for the library USB Configuration Changed event. */
 139 void EVENT_USB_Device_ConfigurationChanged(void)
 140 {
 141         bool ConfigSuccess = true;
 142
 143         ConfigSuccess &= RNDIS_Device_ConfigureEndpoints(&Ethernet_RNDIS_Interface);
 144
 145         LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 146 }
 147
 148 /** Event handler for the library USB Control Request reception event. */
 149 void EVENT_USB_Device_ControlRequest(void)
 150 {
 151         RNDIS_Device_ProcessControlRequest(&Ethernet_RNDIS_Interface);
 152 }
 153