Demos/Host/LowLevel/RNDISEthernetHost/RNDISEthernetHost.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2013.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2013  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 disclaims 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 RNDISEthernetHost demo. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "RNDISEthernetHost.h"
  38
  39 /** Main program entry point. This routine configures the hardware required by the application, then
  40  *  enters a loop to run the application tasks in sequence.
  41  */
  42 int main(void)
  43 {
  44         SetupHardware();
  45
  46         puts_P(PSTR(ESC_FG_CYAN "RNDIS Host Demo running.\r\n" ESC_FG_WHITE));
  47
  48         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  49         GlobalInterruptEnable();
  50
  51         for (;;)
  52         {
  53                 RNDISHost_Task();
  54
  55                 USB_USBTask();
  56         }
  57 }
  58
  59 /** Configures the board hardware and chip peripherals for the demo's functionality. */
  60 void SetupHardware(void)
  61 {
  62         /* Disable watchdog if enabled by bootloader/fuses */
  63         MCUSR &= ~(1 << WDRF);
  64         wdt_disable();
  65
  66         /* Disable clock division */
  67         clock_prescale_set(clock_div_1);
  68
  69         /* Hardware Initialization */
  70         Serial_Init(9600, false);
  71         LEDs_Init();
  72         USB_Init();
  73
  74         /* Create a stdio stream for the serial port for stdin and stdout */
  75         Serial_CreateStream(NULL);
  76 }
  77
  78 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
  79  *  starts the library USB task to begin the enumeration and USB management process.
  80  */
  81 void EVENT_USB_Host_DeviceAttached(void)
  82 {
  83         puts_P(PSTR(ESC_FG_GREEN "Device Attached.\r\n" ESC_FG_WHITE));
  84         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  85 }
  86
  87 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
  88  *  stops the library USB task management process.
  89  */
  90 void EVENT_USB_Host_DeviceUnattached(void)
  91 {
  92         puts_P(PSTR(ESC_FG_GREEN "\r\nDevice Unattached.\r\n" ESC_FG_WHITE));
  93         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  94 }
  95
  96 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
  97  *  enumerated by the host and is now ready to be used by the application.
  98  */
  99 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 100 {
 101         puts_P(PSTR("Getting Config Data.\r\n"));
 102
 103         uint8_t ErrorCode;
 104
 105         /* Get and process the configuration descriptor data */
 106         if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
 107         {
 108                 if (ErrorCode == ControlError)
 109                   puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
 110                 else
 111                   puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
 112
 113                 printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
 114
 115                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 116                 return;
 117         }
 118
 119         /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
 120         if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
 121         {
 122                 printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
 123                                          " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
 124
 125                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 126                 return;
 127         }
 128
 129         uint16_t DeviceMaxPacketSize;
 130         if ((ErrorCode = RNDIS_InitializeDevice(1024, &DeviceMaxPacketSize)) != HOST_SENDCONTROL_Successful)
 131         {
 132                 printf_P(PSTR(ESC_FG_RED "Error Initializing Device.\r\n"
 133                                          " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
 134
 135                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 136                 USB_Host_SetDeviceConfiguration(0);
 137                 return;
 138         }
 139
 140         printf_P(PSTR("Device Max Transfer Size: %lu bytes.\r\n"), DeviceMaxPacketSize);
 141
 142         /* We set the default filter to only receive packets we would be interested in */
 143         uint32_t PacketFilter = (REMOTE_NDIS_PACKET_DIRECTED | REMOTE_NDIS_PACKET_BROADCAST | REMOTE_NDIS_PACKET_ALL_MULTICAST);
 144         if ((ErrorCode = RNDIS_SetRNDISProperty(OID_GEN_CURRENT_PACKET_FILTER,
 145                                                 &PacketFilter, sizeof(PacketFilter))) != HOST_SENDCONTROL_Successful)
 146         {
 147                 printf_P(PSTR(ESC_FG_RED "Error Setting Device Packet Filter.\r\n"
 148                                          " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
 149
 150                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 151                 USB_Host_SetDeviceConfiguration(0);
 152                 return;
 153         }
 154
 155         uint32_t VendorID;
 156         if ((ErrorCode = RNDIS_QueryRNDISProperty(OID_GEN_VENDOR_ID,
 157                                                   &VendorID, sizeof(VendorID))) != HOST_SENDCONTROL_Successful)
 158         {
 159                 printf_P(PSTR(ESC_FG_RED "Error Getting Vendor ID.\r\n"
 160                                          " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
 161
 162                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 163                 USB_Host_SetDeviceConfiguration(0);
 164                 return;
 165         }
 166
 167         printf_P(PSTR("Device Vendor ID: 0x%08lX\r\n"), VendorID);
 168
 169         puts_P(PSTR("RNDIS Device Enumerated.\r\n"));
 170         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 171 }
 172
 173 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 174 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 175 {
 176         USB_Disable();
 177
 178         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 179                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 180
 181         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 182         for(;;);
 183 }
 184
 185 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 186  *  enumerating an attached USB device.
 187  */
 188 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
 189                                             const uint8_t SubErrorCode)
 190 {
 191         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 192                                  " -- Error Code %d\r\n"
 193                                  " -- Sub Error Code %d\r\n"
 194                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 195
 196         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 197 }
 198
 199 /** Task to read in data received from the attached RNDIS device and print it to the serial port.
 200  */
 201 void RNDISHost_Task(void)
 202 {
 203         if (USB_HostState != HOST_STATE_Configured)
 204           return;
 205
 206         uint8_t ErrorCode;
 207
 208         LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 209
 210         uint16_t PacketLength;
 211         if ((ErrorCode = RNDIS_GetPacketLength(&PacketLength)) != HOST_SENDCONTROL_Successful)
 212         {
 213                 printf_P(PSTR(ESC_FG_RED "Packet Reception Error.\r\n"
 214                                          " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
 215                 return;
 216         }
 217
 218         if (!(PacketLength))
 219           return;
 220
 221         Pipe_Unfreeze();
 222
 223         printf_P(PSTR("***PACKET (Size %d)***\r\n"), PacketLength);
 224
 225         if (PacketLength > 1024)
 226         {
 227                 puts_P(PSTR(ESC_FG_RED "Packet too large.\r\n" ESC_FG_WHITE));
 228                 Pipe_Discard_Stream(PacketLength, NULL);
 229         }
 230         else
 231         {
 232                 uint8_t PacketBuffer[PacketLength];
 233
 234                 Pipe_Read_Stream_LE(&PacketBuffer, PacketLength, NULL);
 235
 236                 for (uint16_t i = 0; i < PacketLength; i++)
 237                   printf("0x%02x ", PacketBuffer[i]);
 238         }
 239
 240         Pipe_ClearIN();
 241         Pipe_Freeze();
 242
 243         printf("\r\n\r\n");
 244
 245         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 246 }
 247