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 volatile uint8_t uIPManagementTimeout;
  61
  62 /** ISR for the management of the connection management timeout counter */
  63 ISR(TIMER0_COMPA_vect, ISR_BLOCK)
  64 {
  65         if (uIPManagementTimeout)
  66           uIPManagementTimeout--;
  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                 #define BUF ((struct uip_eth_hdr *)&uip_buf[0])
 190
 191                 if (BUF->type == HTONS(UIP_ETHTYPE_IP))
 192                 {
 193                         /* Filter packet by MAC destination */
 194                         uip_arp_ipin();
 195
 196                         /* Process incomming packet */
 197                         uip_input();
 198
 199                         /* Add destination MAC to outgoing packet */
 200                         if (uip_len > 0)
 201                           uip_arp_out();
 202                 }
 203                 else if (BUF->type == HTONS(UIP_ETHTYPE_ARP))
 204                 {
 205                         /* Process ARP packet */
 206                         uip_arp_arpin();
 207                 }
 208
 209                 /* If a response was generated, send it */
 210                 if (uip_len > 0)
 211                   RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, &uip_buf, uip_len);
 212
 213                 printf("SENT PACKET (%d):\r\n", uip_len);
 214                 for (uint16_t i = 0; i < uip_len; i++)
 215                   printf("0x%02X ", uip_buf[i]);
 216                 printf("\r\n\r\n");
 217
 218                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 219         }
 220 }
 221
 222 void ManageConnections(void)
 223 {
 224         if (!(uIPManagementTimeout))
 225         {
 226                 LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 227
 228                 for (uint8_t i = 0; i < UIP_CONNS; i++)
 229                 {
 230                         /* Run periodic connection management for each connection */
 231                         uip_periodic(i);
 232
 233                         /* If a response was generated, send it */
 234                         if (uip_len > 0)
 235                           RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, &uip_buf, uip_len);
 236                 }
 237
 238                 uip_arp_timer();
 239
 240                 uIPManagementTimeout = 250;
 241
 242                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 243         }
 244 }
 245
 246 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 247 void SetupHardware(void)
 248 {
 249         /* Disable watchdog if enabled by bootloader/fuses */
 250         MCUSR &= ~(1 << WDRF);
 251         wdt_disable();
 252
 253         /* Disable clock division */
 254         clock_prescale_set(clock_div_1);
 255
 256         /* Hardware Initialization */
 257         SerialStream_Init(9600, false);
 258         LEDs_Init();
 259         USB_Init();
 260
 261         /* Millisecond timer initialization for managing the command timeout counter */
 262         OCR0A  = ((F_CPU / 64) / 1000);
 263         TCCR0A = (1 << WGM01);
 264         TCCR0B = ((1 << CS01) | (1 << CS00));
 265
 266         /* uIP Stack Initialization */
 267         uip_init();
 268
 269         uip_ipaddr_t IPAddress, Netmask, GatewayIPAddress;
 270         uip_ipaddr(&IPAddress, 192, 168, 1, 10);
 271         uip_ipaddr(&Netmask, 0xFF, 0xFF, 0xFF, 0x00);
 272         uip_ipaddr(&GatewayIPAddress, 192, 168, 1, 1);
 273         uip_sethostaddr(&IPAddress);
 274         uip_setnetmask(&Netmask);
 275         uip_setdraddr(&GatewayIPAddress);
 276
 277         /* HTTP Webserver Initialization */
 278         uip_listen(HTONS(80));
 279 }
 280
 281 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 282  *  starts the library USB task to begin the enumeration and USB management process.
 283  */
 284 void EVENT_USB_Host_DeviceAttached(void)
 285 {
 286         puts_P(PSTR("Device Attached.\r\n"));
 287         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 288 }
 289
 290 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 291  *  stops the library USB task management process.
 292  */
 293 void EVENT_USB_Host_DeviceUnattached(void)
 294 {
 295         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 296         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 297 }
 298
 299 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 300  *  enumerated by the host and is now ready to be used by the application.
 301  */
 302 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 303 {
 304         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 305 }
 306
 307 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 308 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 309 {
 310         USB_ShutDown();
 311
 312         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 313                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 314
 315         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 316         for(;;);
 317 }
 318
 319 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 320  *  enumerating an attached USB device.
 321  */
 322 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
 323 {
 324         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 325                                  " -- Error Code %d\r\n"
 326                                  " -- Sub Error Code %d\r\n"
 327                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 328
 329         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 330 }