Projects/Incomplete/Webserver/Webserver.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  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 Webserver project. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "Webserver.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_Host_t Ethernet_RNDIS_Interface =
  44         {
  45                 .Config =
  46                         {
  47                                 .DataINPipeNumber           = 1,
  48                                 .DataINPipeDoubleBank       = false,
  49
  50                                 .DataOUTPipeNumber          = 2,
  51                                 .DataOUTPipeDoubleBank      = false,
  52
  53                                 .NotificationPipeNumber     = 3,
  54                                 .NotificationPipeDoubleBank = false,
  55
  56                                 .HostMaxPacketSize          = UIP_CONF_BUFFER_SIZE,
  57                         },
  58         };
  59
  60 struct timer ConnectionTimer, ARPTimer;
  61 uint16_t MillisecondTickCount;
  62
  63 /** ISR for the management of the connection management timeout counter */
  64 ISR(TIMER0_COMPA_vect, ISR_BLOCK)
  65 {
  66         MillisecondTickCount++;
  67 }
  68
  69 void TCPCallback(void)
  70 {
  71         printf("Callback!\r\n");
  72 }
  73
  74 /** Main program entry point. This routine configures the hardware required by the application, then
  75  *  enters a loop to run the application tasks in sequence.
  76  */
  77 int main(void)
  78 {
  79         SetupHardware();
  80
  81         puts_P(PSTR(ESC_FG_CYAN "RNDIS Host Demo running.\r\n" ESC_FG_WHITE));
  82
  83         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  84
  85         for (;;)
  86         {
  87                 switch (USB_HostState)
  88                 {
  89                         case HOST_STATE_Addressed:
  90                                 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  91
  92                                 uint16_t ConfigDescriptorSize;
  93                                 uint8_t  ConfigDescriptorData[512];
  94
  95                                 if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
  96                                                                        sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
  97                                 {
  98                                         printf("Error Retrieving Configuration Descriptor.\r\n");
  99                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 100                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 101                                         break;
 102                                 }
 103
 104                                 if (RNDIS_Host_ConfigurePipes(&Ethernet_RNDIS_Interface,
 105                                                               ConfigDescriptorSize, ConfigDescriptorData) != RNDIS_ENUMERROR_NoError)
 106                                 {
 107                                         printf("Attached Device Not a Valid RNDIS Class Device.\r\n");
 108                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 109                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 110                                         break;
 111                                 }
 112
 113                                 if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
 114                                 {
 115                                         printf("Error Setting Device Configuration.\r\n");
 116                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 117                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 118                                         break;
 119                                 }
 120
 121                                 if (RNDIS_Host_InitializeDevice(&Ethernet_RNDIS_Interface) != HOST_SENDCONTROL_Successful)
 122                                 {
 123                                         printf("Error Initializing Device.\r\n");
 124
 125                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 126                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 127                                         break;
 128                                 }
 129
 130                                 printf("Device Max Transfer Size: %lu bytes.\r\n", Ethernet_RNDIS_Interface.State.DeviceMaxPacketSize);
 131
 132                                 uint32_t PacketFilter = (REMOTE_NDIS_PACKET_DIRECTED | REMOTE_NDIS_PACKET_BROADCAST | REMOTE_NDIS_PACKET_ALL_MULTICAST);
 133                                 if (RNDIS_Host_SetRNDISProperty(&Ethernet_RNDIS_Interface, OID_GEN_CURRENT_PACKET_FILTER,
 134                                                                 &PacketFilter, sizeof(PacketFilter)) != HOST_SENDCONTROL_Successful)
 135                                 {
 136                                         printf("Error Setting Device Packet Filter.\r\n");
 137
 138                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 139                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 140                                         break;
 141                                 }
 142
 143                                 struct uip_eth_addr MACAddress;
 144                                 if (RNDIS_Host_QueryRNDISProperty(&Ethernet_RNDIS_Interface, OID_802_3_CURRENT_ADDRESS,
 145                                                                   &MACAddress, sizeof(MACAddress)) != HOST_SENDCONTROL_Successful)
 146                                 {
 147                                         printf("Error Getting MAC Address.\r\n");
 148
 149                                         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 150                                         USB_HostState = HOST_STATE_WaitForDeviceRemoval;
 151                                         break;
 152                                 }
 153
 154                                 printf("MAC Address: 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\r\n",
 155                                         MACAddress.addr[0], MACAddress.addr[1], MACAddress.addr[2],
 156                                         MACAddress.addr[3], MACAddress.addr[4], MACAddress.addr[5]);
 157
 158                                 uip_setethaddr(MACAddress);
 159
 160                                 printf("RNDIS Device Enumerated.\r\n");
 161                                 USB_HostState = HOST_STATE_Configured;
 162                                 break;
 163                         case HOST_STATE_Configured:
 164                                 ProcessIncommingPacket();
 165                                 ManageConnections();
 166
 167                                 break;
 168                 }
 169
 170                 RNDIS_Host_USBTask(&Ethernet_RNDIS_Interface);
 171                 USB_USBTask();
 172         }
 173 }
 174
 175 void ProcessIncommingPacket(void)
 176 {
 177         if (RNDIS_Host_IsPacketReceived(&Ethernet_RNDIS_Interface))
 178         {
 179                 LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 180
 181                 /* Read the incomming packet straight into the UIP packet buffer */
 182                 RNDIS_Host_ReadPacket(&Ethernet_RNDIS_Interface, &uip_buf, &uip_len);
 183
 184                 printf("RECEIVED PACKET (%d):\r\n", uip_len);
 185                 for (uint16_t i = 0; i < uip_len; i++)
 186                   printf("0x%02X ", uip_buf[i]);
 187                 printf("\r\n\r\n");
 188
 189                 struct uip_eth_hdr* EthernetHeader = (struct uip_eth_hdr*)&uip_buf[0];
 190                 if (EthernetHeader->type == HTONS(UIP_ETHTYPE_IP))
 191                 {
 192                         /* Filter packet by MAC destination */
 193                         uip_arp_ipin();
 194
 195                         /* Process incomming packet */
 196                         uip_input();
 197
 198                         /* Add destination MAC to outgoing packet */
 199                         if (uip_len > 0)
 200                           uip_arp_out();
 201                 }
 202                 else if (EthernetHeader->type == HTONS(UIP_ETHTYPE_ARP))
 203                 {
 204                         /* Process ARP packet */
 205                         uip_arp_arpin();
 206                 }
 207
 208                 /* If a response was generated, send it */
 209                 if (uip_len > 0)
 210                   RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, &uip_buf, uip_len);
 211
 212                 printf("SENT PACKET (%d):\r\n", uip_len);
 213                 for (uint16_t i = 0; i < uip_len; i++)
 214                   printf("0x%02X ", uip_buf[i]);
 215                 printf("\r\n\r\n");
 216
 217                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 218         }
 219 }
 220
 221 void ManageConnections(void)
 222 {
 223         if (timer_expired(&ConnectionTimer))
 224         {
 225                 timer_reset(&ConnectionTimer);
 226
 227                 LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 228
 229                 for (uint8_t i = 0; i < UIP_CONNS; i++)
 230                 {
 231                         /* Run periodic connection management for each connection */
 232                         uip_periodic(i);
 233
 234                         /* If a response was generated, send it */
 235                         if (uip_len > 0)
 236                           RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, &uip_buf, uip_len);
 237                 }
 238
 239                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 240         }
 241
 242         if (timer_expired(&ARPTimer))
 243         {
 244                 timer_reset(&ARPTimer);
 245                 uip_arp_timer();
 246         }
 247 }
 248
 249 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 250 void SetupHardware(void)
 251 {
 252         /* Disable watchdog if enabled by bootloader/fuses */
 253         MCUSR &= ~(1 << WDRF);
 254         wdt_disable();
 255
 256         /* Disable clock division */
 257         clock_prescale_set(clock_div_1);
 258
 259         /* Hardware Initialization */
 260         SerialStream_Init(9600, false);
 261         LEDs_Init();
 262         USB_Init();
 263
 264         /* uIP Timing Initialization */
 265         clock_init();
 266         timer_set(&ConnectionTimer, CLOCK_SECOND / 2);
 267         timer_set(&ARPTimer, CLOCK_SECOND * 10);
 268
 269         /* uIP Stack Initialization */
 270         uip_init();
 271         uip_ipaddr_t IPAddress, Netmask, GatewayIPAddress;
 272         uip_ipaddr(&IPAddress,        192, 168, 1, 10);
 273         uip_ipaddr(&Netmask,          255, 255, 255, 0);
 274         uip_ipaddr(&GatewayIPAddress, 192, 168, 1, 1);
 275         uip_sethostaddr(&IPAddress);
 276         uip_setnetmask(&Netmask);
 277         uip_setdraddr(&GatewayIPAddress);
 278
 279         /* HTTP Webserver Initialization */
 280         uip_listen(HTONS(80));
 281 }
 282
 283 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 284  *  starts the library USB task to begin the enumeration and USB management process.
 285  */
 286 void EVENT_USB_Host_DeviceAttached(void)
 287 {
 288         puts_P(PSTR("Device Attached.\r\n"));
 289         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 290 }
 291
 292 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 293  *  stops the library USB task management process.
 294  */
 295 void EVENT_USB_Host_DeviceUnattached(void)
 296 {
 297         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 298         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 299 }
 300
 301 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 302  *  enumerated by the host and is now ready to be used by the application.
 303  */
 304 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 305 {
 306         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 307 }
 308
 309 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 310 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 311 {
 312         USB_ShutDown();
 313
 314         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 315                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 316
 317         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 318         for(;;);
 319 }
 320
 321 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 322  *  enumerating an attached USB device.
 323  */
 324 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 325 {
 326         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 327                                  " -- Error Code %d\r\n"
 328                                  " -- Sub Error Code %d\r\n"
 329                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 330
 331         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 332 }