Moved initial completed version of the Webserver project out of the Projects/Incomplete directory.
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Dean Camera
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298
Projects/Webserver/Webserver.c
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298
Projects/Webserver/Webserver.c
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Main source file for the Webserver project. This file contains the main tasks of
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* the project and is responsible for the initial application hardware configuration.
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*/
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#include "Webserver.h"
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/** LUFA RNDIS Class driver interface configuration and state information. This structure is
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* passed to all RNDIS Class driver functions, so that multiple instances of the same class
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* within a device can be differentiated from one another.
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*/
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USB_ClassInfo_RNDIS_Host_t Ethernet_RNDIS_Interface =
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{
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.Config =
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{
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.DataINPipeNumber = 1,
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.DataINPipeDoubleBank = false,
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.DataOUTPipeNumber = 2,
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.DataOUTPipeDoubleBank = false,
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.NotificationPipeNumber = 3,
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.NotificationPipeDoubleBank = false,
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.HostMaxPacketSize = UIP_CONF_BUFFER_SIZE,
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},
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};
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/** Connection timer, to retain the time elapsed since the last time the uIP connections were managed. */
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struct timer ConnectionTimer;
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/** ARP timer, to retain the time elapsed since the ARP cache was last updated. */
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struct timer ARPTimer;
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/** Main program entry point. This routine configures the hardware required by the application, then
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* enters a loop to run the application tasks in sequence.
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*/
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int main(void)
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{
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SetupHardware();
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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for (;;)
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{
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switch (USB_HostState)
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{
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case HOST_STATE_Addressed:
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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uint16_t ConfigDescriptorSize;
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uint8_t ConfigDescriptorData[512];
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if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
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sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_HostState = HOST_STATE_WaitForDeviceRemoval;
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break;
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}
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if (RNDIS_Host_ConfigurePipes(&Ethernet_RNDIS_Interface,
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ConfigDescriptorSize, ConfigDescriptorData) != RNDIS_ENUMERROR_NoError)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_HostState = HOST_STATE_WaitForDeviceRemoval;
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break;
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}
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if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_HostState = HOST_STATE_WaitForDeviceRemoval;
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break;
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}
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if (RNDIS_Host_InitializeDevice(&Ethernet_RNDIS_Interface) != HOST_SENDCONTROL_Successful)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_HostState = HOST_STATE_WaitForDeviceRemoval;
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break;
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}
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uint32_t PacketFilter = (REMOTE_NDIS_PACKET_DIRECTED | REMOTE_NDIS_PACKET_BROADCAST);
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if (RNDIS_Host_SetRNDISProperty(&Ethernet_RNDIS_Interface, OID_GEN_CURRENT_PACKET_FILTER,
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&PacketFilter, sizeof(PacketFilter)) != HOST_SENDCONTROL_Successful)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_HostState = HOST_STATE_WaitForDeviceRemoval;
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break;
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}
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struct uip_eth_addr MACAddress;
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if (RNDIS_Host_QueryRNDISProperty(&Ethernet_RNDIS_Interface, OID_802_3_CURRENT_ADDRESS,
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&MACAddress, sizeof(MACAddress)) != HOST_SENDCONTROL_Successful)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_HostState = HOST_STATE_WaitForDeviceRemoval;
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break;
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}
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uip_setethaddr(MACAddress);
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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USB_HostState = HOST_STATE_Configured;
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break;
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case HOST_STATE_Configured:
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ProcessIncommingPacket();
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ManageConnections();
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break;
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}
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RNDIS_Host_USBTask(&Ethernet_RNDIS_Interface);
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USB_USBTask();
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}
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}
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void ProcessIncommingPacket(void)
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{
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if (RNDIS_Host_IsPacketReceived(&Ethernet_RNDIS_Interface))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
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/* Read the incomming packet straight into the UIP packet buffer */
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RNDIS_Host_ReadPacket(&Ethernet_RNDIS_Interface, &uip_buf[0], &uip_len);
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if (uip_len > 0)
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{
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bool PacketHandled = true;
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struct uip_eth_hdr* EthernetHeader = (struct uip_eth_hdr*)&uip_buf[0];
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if (EthernetHeader->type == HTONS(UIP_ETHTYPE_IP))
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{
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/* Filter packet by MAC destination */
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uip_arp_ipin();
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/* Process incomming packet */
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uip_input();
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/* Add destination MAC to outgoing packet */
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if (uip_len > 0)
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uip_arp_out();
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}
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else if (EthernetHeader->type == HTONS(UIP_ETHTYPE_ARP))
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{
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/* Process ARP packet */
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uip_arp_arpin();
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}
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else
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{
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PacketHandled = false;
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}
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/* If a response was generated, send it */
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if ((uip_len > 0) && PacketHandled)
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RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, &uip_buf[0], uip_len);
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}
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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}
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}
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void ManageConnections(void)
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{
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/* Manage open connections */
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if (timer_expired(&ConnectionTimer))
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{
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timer_reset(&ConnectionTimer);
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LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
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for (uint8_t i = 0; i < UIP_CONNS; i++)
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{
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/* Run periodic connection management for each connection */
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uip_periodic(i);
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/* If a response was generated, send it */
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if (uip_len > 0)
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RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, &uip_buf[0], uip_len);
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}
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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}
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/* Manage ARP cache refreshing */
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if (timer_expired(&ARPTimer))
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{
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timer_reset(&ARPTimer);
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uip_arp_timer();
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}
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}
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/** Configures the board hardware and chip peripherals for the demo's functionality. */
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void SetupHardware(void)
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{
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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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wdt_disable();
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/* Disable clock division */
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clock_prescale_set(clock_div_1);
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/* Hardware Initialization */
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LEDs_Init();
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USB_Init();
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/* uIP Timing Initialization */
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clock_init();
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timer_set(&ConnectionTimer, CLOCK_SECOND / 2);
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timer_set(&ARPTimer, CLOCK_SECOND * 10);
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/* uIP Stack Initialization */
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uip_init();
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uip_ipaddr_t IPAddress, Netmask, GatewayIPAddress;
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uip_ipaddr(&IPAddress, 192, 168, 1, 10);
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uip_ipaddr(&Netmask, 255, 255, 255, 0);
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uip_ipaddr(&GatewayIPAddress, 192, 168, 1, 1);
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uip_sethostaddr(&IPAddress);
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uip_setnetmask(&Netmask);
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uip_setdraddr(&GatewayIPAddress);
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/* HTTP Webserver Initialization */
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WebserverApp_Init();
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}
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/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
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* starts the library USB task to begin the enumeration and USB management process.
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*/
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void EVENT_USB_Host_DeviceAttached(void)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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}
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/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
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* stops the library USB task management process.
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*/
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void EVENT_USB_Host_DeviceUnattached(void)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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}
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/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
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* enumerated by the host and is now ready to be used by the application.
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*/
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void EVENT_USB_Host_DeviceEnumerationComplete(void)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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}
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/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
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void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
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{
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USB_ShutDown();
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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for(;;);
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}
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/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
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* enumerating an attached USB device.
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*/
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void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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