/**
* This function is a "callback" from HTTPServer task. Whenever a remote node performs interactive
* GET task on page that was served, HTTPServer calls this functions. Use HTTPGetParam()
* to get all name-value parameters.
*
* @param httpInfo Socket that is currently receiving this HTTP command
* @param rqstRes Name of the Requested resource - GET command's action. All characters are
* in uppercase!
*/
void HTTPExecGetCmd(HTTP_INFO* httpInfo, BYTE* rqstRes) {
BYTE param[64];
WORD wUpdate; //Contains CMD_UD_XXX flags indicating what has to be updated
//Used as input AND output parameter for HTTPGetParams.
// - Input parameter indicates size of param buffer
// - On return of HTTPGerParam() valueIdx will contain index of value string in param
BYTE valueIdx;
BYTE moreParams;
BYTE paramCount; //The number of parameters (name-value pairs) we have received
BYTE user;
BYTE tmp;
BYTE executed; //Indicates if the command has been executed already or not
#if (DEBUG_HTTPEXEC >= LOG_DEBUG)
debugPutMsg(1); //@mxd:1:HTTPExecGetCmd() called for file %s
debugPutString(rqstRes);
#endif
wUpdate = 0; //Clear all update flags
paramCount = 0;
//Get the current user logged in for this HTTP connection
user = HTTPGetCurrentUser(httpInfo);
//Get next name-value parameter
do {
valueIdx = (BYTE)sizeof(param); //Input parameter is size of param buffer
//Get name-value parameters. Returns true if there are more name-value parameters to follow
//- Pointer to Name parameter = ¶m[0]
//- Pointer to Value parameter = ¶m[valueIdx]
moreParams = HTTPGetParam(httpInfo->socket, param, &valueIdx);
paramCount++;
executed = 0; //Current name-value command has not been executed yet
/////////////////////////////////////////////////
//We received a general command with value
if (param[0] == CMDGROUP_GENERAL)
{
#if (DEBUG_CMD >= LOG_DEBUG)
debugPutMsg(8); //@mxd:8:Received General Command
#endif
//The second character of the name part of the name-value pair will be the "Command Code".
switch(param[1]) {
case CMDCODE_GEN_PASSWORD:
executed = 1; //Indicates that the command has been executed
// This command is NOT used any more, seeing that we now use HTTP Authentication
break;
case CMDCODE_GEN_USERNAME:
executed = 1; //Indicates that the command has been executed
// This command is NOT used any more, seeing that we now use HTTP Authentication
break;
}
}
/////////////////////////////////////////////////
//We received a general command without value
else if (param[0] == CMDGROUP_GENERAL_NOVAL)
{
#if (DEBUG_CMD >= LOG_DEBUG)
debugPutMsg(10); //@mxd:10:Received General Command without value
#endif
/////////////////////////////////////////////////
// The following commands can ONLY be executed by "Admin" or "Super User"
if (user != USER_GUEST) {
//The first character of the value part of the name-value pair will be the "Command Code".
switch(param[valueIdx]) {
//There is no logout command anymore with HTTP Authentication!
case CMDCODE_GENNOVAL_LOGOUT:
executed = 1; //Indicates that the command has been executed
#if (DEBUG_CMD >= LOG_INFO)
debugPutMsg(14); //@mxd:14:Received Log Off command
#endif
//There is no logout command anymore with HTTP Authentication!
//Update HTTP_INFO structure's user information
//httpInfo->flags.bits.bUserLoggedIn = FALSE;
break;
}
}
//The first character of the value part of the name-value pair will be the "Command Code".
switch(param[valueIdx]) {
//Causes requested to log in, if not already Authenticated
case CMDCODE_GENNOVAL_LOGIN:
executed = 1; //Indicates that the command has been executed
httpInfo->flags.bits.bLoginReq = TRUE;
break;
}
}
//If this command has not been executed yet, pass it on to the execNaveValueCmd function
if ( !executed) {
//Execute the given name-value command
wUpdate |= execNameValueCmd(param, ¶m[valueIdx], user);
}
} while (moreParams);
//Network settings have changed
if (wUpdate & CMD_UD_NETWORK) {
//Reconfigure USART with new value
//appcfgNetwork();
}
else if (wUpdate & CMD_UD_USART) {
//Reconfigure USART with new value
appcfgUSART();
appcfgUSART2();
}
else if (wUpdate & CMD_UD_CPU_IO) {
//Reconfigure IO ports
appcfgCpuIO();
}
else if (wUpdate & CMD_UD_ADC) {
//Reconfigure IO ports
appcfgADC();
}
else if (wUpdate & CMD_UD_PWM) {
//Reconfigure PWM
appcfgPWM();
}
else if (wUpdate & CMD_UD_XBOARD) {
//Reconfigure Expansion Board
appcfgXboard();
}
else if (wUpdate & CMD_UD_BUSBUF) {
//Reconfigure Bus Buffers
busInfoInit();
}
else if (wUpdate & CMD_UD_BUSNET) {
//Reconfigure UDP Buses
busNetInit();
}
}
/*
* Main entry point.
*/
void main(void)
{
static TICK8 t = 0;
#ifdef HEATHERD
NODE_INFO tcpServerNode;
static TCP_SOCKET tcpSocketUser = INVALID_SOCKET;
BYTE c;
#endif
static BYTE testLED;
testLED = 1;
//Set SWDTEN bit, this will enable the watch dog timer
WDTCON_SWDTEN = 1;
aliveCntrMain = 0xff; //Disable alive counter during initialization. Setting to 0xff disables it.
//Initialize any application specific hardware.
InitializeBoard();
//Initialize all stack related components. Following steps must
//be performed for all applications using PICmicro TCP/IP Stack.
TickInit();
//Initialize buses
busInit();
//Initialize serial ports early, because they could be required for debugging
if (appcfgGetc(APPCFG_USART1_CFG & APPCFG_USART_ENABLE)) {
appcfgUSART(); //Configure the USART1
}
if (appcfgGetc(APPCFG_USART2_CFG & APPCFG_USART_ENABLE)) {
appcfgUSART2(); //Configure the USART2
}
//After initializing all modules that use interrupts, enable global interrupts
INTCON_GIEH = 1;
INTCON_GIEL = 1;
//Initialize file system.
fsysInit();
//Intialize HTTP Execution unit
htpexecInit();
//Initialize Stack and application related NV variables.
appcfgInit();
//First call appcfgCpuIOValues() and then only appcfgCpuIO()!!! This ensures the value are set, before enabling ports.
appcfgCpuIOValues(); //Configure the CPU's I/O port pin default values
appcfgCpuIO(); //Configure the CPU's I/O port pin directions - input or output
appcfgADC(); //Configure ADC unit
appcfgPWM(); //Configure PWM Channels
//Serial configuration menu - display it for configured time and allow user to enter configuration menu
scfInit(appcfgGetc(APPCFG_STARTUP_SER_DLY));
//LCD Display Initialize
lcdInit();
//Initialize expansion board
appcfgXboard();
StackInit();
#if defined(STACK_USE_HTTP_SERVER)
HTTPInit();
#endif
#if defined(STACK_USE_FTP_SERVER)
FTPInit();
#endif
//Intialise network componet of buses - only call after StackInit()!
busNetInit();
//Initializes events.
evtInit();
//Initializes "UDP Command Port" and "UDP Even Port".
cmdInit();
ioInit();
#if (DEBUG_MAIN >= LOG_DEBUG)
debugPutMsg(1); //@mxd:1:Starting main loop
#endif
/*
* Once all items are initialized, go into infinite loop and let
* stack items execute their tasks.
* If application needs to perform its own task, it should be
* done at the end of while loop.
* Note that this is a "co-operative mult-tasking" mechanism
* where every task performs its tasks (whether all in one shot
* or part of it) and returns so that other tasks can do their
* job.
* If a task needs very long time to do its job, it must broken
* down into smaller pieces so that other tasks can have CPU time.
*/
#ifdef HEATHERD
//Create a TCP socket that listens on port 54123
tcpSocketUser = TCPListen(HEATHERD);
#define HEATHERD_ENABLE (!(appcfgGetc(APPCFG_TRISA) & 1))
#define HEATHERD_WRITE_ENABLE (!(appcfgGetc(APPCFG_TRISA) & 2))
#endif
while(1)
{
aliveCntrMain = 38; //Reset if not services in 52.42ms x 38 = 2 seconds
//Blink SYSTEM LED every second.
if (appcfgGetc(APPCFG_SYSFLAGS) & APPCFG_SYSFLAGS_BLINKB6) {
//Configure RB6 as output, and blink it every 500ms
if ( TickGetDiff8bit(t) >= ((TICK8)TICKS_PER_SECOND / (TICK8)2) )
{
t = TickGet8bit();
//If B6 is configured as input, change to output
if (appcfgGetc(APPCFG_TRISB) & 0x40) {
appcfgPutc(APPCFG_TRISB, appcfgGetc(APPCFG_TRISB) & 0b10111111);
}
TRISB_RB6 = 0;
LATB6 ^= 1; //Toggle
//Toggle IOR5E LED, if IOR5E is present
if (appcfgGetc(APPCFG_XBRD_TYPE) == XBRD_TYPE_IOR5E) {
ior5eLatchData.bits.ledPWR ^= 1; // Toggle
}
}
}
//This task performs normal stack task including checking for incoming packet,
//type of packet and calling appropriate stack entity to process it.
StackTask();
//Service LCD display
lcdService();
//Process commands
cmdTask();
//Process events
evtTask();
//Process serial busses
busTask();
//I2C Task
i2cTask();
#ifdef HEATHERD
//Has a remote node made connection with the port we are listening on
if ((tcpSocketUser != INVALID_SOCKET) && TCPIsConnected(tcpSocketUser)) {
if (HEATHERD_ENABLE) {
//Is there any data waiting for us on the TCP socket?
//Because of the design of the Modtronix TCP/IP stack we have to
//consume all data sent to us as soon as we detect it.
while(TCPIsGetReady(tcpSocketUser)) {
//We are only interrested in the first byte of the message.
TCPGet(tcpSocketUser, &c);
if (HEATHERD_WRITE_ENABLE) serPutByte(c);
}
//Discard the socket buffer.
TCPDiscard(tcpSocketUser);
while (serIsGetReady() && TCPIsPutReady(tcpSocketUser)) {
TCPPut(tcpSocketUser,serGetByte());
}
TCPFlush(tcpSocketUser);
} else {
TCPDisconnect(tcpSocketUser);
}
}
#endif
#if defined(STACK_USE_HTTP_SERVER)
//This is a TCP application. It listens to TCP port 80
//with one or more sockets and responds to remote requests.
HTTPServer();
#endif
#if defined(STACK_USE_FTP_SERVER)
FTPServer();
#endif
#if defined(STACK_USE_ANNOUNCE)
DiscoveryTask();
#endif
#if defined(STACK_USE_NBNS)
NBNSTask();
#endif
//Add your application speicifc tasks here.
ProcessIO();
//For DHCP information, display how many times we have renewed the IP
//configuration since last reset.
if ( DHCPBindCount != myDHCPBindCount )
{
#if (DEBUG_MAIN >= LOG_INFO)
debugPutMsg(2); //@mxd:2:DHCP Bind Count = %D
debugPutByteHex(DHCPBindCount);
#endif
//Display new IP address
#if (DEBUG_MAIN >= LOG_INFO)
debugPutMsg(3); //@mxd:3:DHCP complete, IP = %D.%D.%D.%D
debugPutByteHex(AppConfig.MyIPAddr.v[0]);
debugPutByteHex(AppConfig.MyIPAddr.v[1]);
debugPutByteHex(AppConfig.MyIPAddr.v[2]);
debugPutByteHex(AppConfig.MyIPAddr.v[3]);
#endif
myDHCPBindCount = DHCPBindCount;
#if defined(STACK_USE_ANNOUNCE)
AnnounceIP();
#endif
}
}
}
