OMAP-L138/C6748 LC Dev Kit - SPI0 And Ethernet RMII channels

/*
 * network.c
 *
 * This file contains the network driver functionality on SYS/BIOS 6.
 *
 * Source: TMS320C6000 Network Developer's Kit (NDK) Software User's Guide, spru523_ug.pdf
 *
 * Copyright (C) 2012 Yacob Hassidim - yacobh@zahav.net.il
 *
 *
 */

/**
 * \file      network.c
 *
 * \brief     This file contains the network driver implemented for SYS/BIOS 6.
 *
 *
 * \author    Yacob Hassidim
 *
 * \version   0.1  created for the OMAPL138 and C6748 platforms.
 *
 */

/* ========================================================================== */
/*                              INCLUDE FILES                                 */
/* ========================================================================== */ 
#include <xdc/std.h>
#include <string.h>
#include <xdc/runtime/Memory.h>
#include <xdc/runtime/Log.h>
#include <xdc/runtime/Error.h>
#include <xdc/runtime/System.h>
#include <xdc/runtime/log.h>
#include <ti/sysbios/knl/Semaphore.h>
#include <ti/sysbios/knl/task.h>

#include <netmain.h>

//#include <stdio.h>

/* ========================================================================== */
/*                              INCLUDE FILES - Application                   */
/* ========================================================================== */ 

#include "network.h"
#include "TcpServer.h"

/* ========================================================================== */
/*                            EXTERNAL VARIABLES                              */
/* ========================================================================== */ 


/* ========================================================================== */
/*                             MACRO DEFINITIONS                              */
/* ========================================================================== */


/* ========================================================================== */
/*                           LOCAL FUNCTION PROTOTYPES                        */
/* ========================================================================== */  
static void NetworkOpen();
static void NetworkClose();
static void NetworkIPAddr( IPN IPAddr, uint IfIdx, uint fAdd );

/* ========================================================================== */
/*                             GLOBAL VARIABLES                               */
/* ========================================================================== */
char *LocalIPAddr = "194.16.11.12";
char *LocalIPMask = "255.255.255.0";
char *GatewayIP = "194.16.10.1";
char *HostName = "testhost";
char *DomainName = "demo.net";

static HANDLE hTcpServer=0;
static HANDLE hNetworkTask=0;


/* ========================================================================== */
/*                           FUNCTION DEFINITIONS                             */
/* ========================================================================== */ 

/**
 * \brief The NetworkTask() function consists of the main 
 *        initialization thread for the stack. It creates a new configuration, 
 *        adds a static IP address, subnet, and default gateway, and then boots 
 *        up the stack.
 * 
 * \param    None
 *
 * \return None
 *
 */
Void NetworkTask(void)
{
int rc;
CI_IPNET NA;
CI_ROUTE RT;
HANDLE hCfg;

	//
	// THIS MUST BE THE ABSOLUTE FIRST THING DONE IN AN APPLICATION!!
	//
	rc = NC_SystemOpen( NC_PRIORITY_LOW, NC_OPMODE_INTERRUPT );
	//rc = NC_SystemOpen( NC_PRIORITY_HIGH, NC_OPMODE_INTERRUPT );
	if( rc )
	{
		printf("NC_SystemOpen Failed (%d)\n",rc);

		for(;;);
	}

	//
	// Create and build the system configuration from scratch.
	//
	// Create a new configuration
	hCfg = CfgNew();
	if( !hCfg )
	{
		printf("Unable to create configuration\n");

		goto main_exit;
	}
	// We better validate the length of the supplied names
	if( strlen( DomainName ) >= CFG_DOMAIN_MAX ||
		strlen( HostName ) >= CFG_HOSTNAME_MAX )
	{
		printf("Names too long\n");

		goto main_exit;
	}
	// Manually configure our local IP address
	bzero( &NA, sizeof(NA) );
	NA.IPAddr = inet_addr(LocalIPAddr);
	NA.IPMask = inet_addr(LocalIPMask);
	strcpy( NA.Domain, DomainName );
	NA.NetType = 0;
	// Add the address to interface 1
	CfgAddEntry( hCfg, CFGTAG_IPNET, 1, 0,
	sizeof(CI_IPNET), (UINT8 *)&NA, 0 );
	// Add our hostname
	CfgAddEntry( hCfg, CFGTAG_SYSINFO, CFGITEM_DHCP_HOSTNAME, 0,
	strlen(HostName), (UINT8 *)HostName, 0 );
	// Add the default gateway. Since it is the default, the
	// destination address and mask are both zero (we go ahead
	// and show the assignment for clarity).
	bzero( &RT, sizeof(RT) );
	RT.IPDestAddr = 0;
	RT.IPDestMask = 0;
	RT.IPGateAddr = inet_addr(GatewayIP);
	// Add the route
	CfgAddEntry( hCfg, CFGTAG_ROUTE, 0, 0,
	sizeof(CI_ROUTE), (UINT8 *)&RT, 0 );

	// Boot the system using this configuration
	//
	// We keep booting until the function returns less than 1. This allows
	// us to have a "reboot" command.
	//
	do
	{
		//rc = NC_NetStart( hCfg, NetworkStart, NetworkStop, NetworkIPAddr );
		rc = NC_NetStart( hCfg, NetworkOpen, NetworkClose, NetworkIPAddr );

		printf("Network task: after NC_NetStart, rc: %d.\n", rc);

	} while( rc > 0 );

	// Delete Configuration
	CfgFree( hCfg );
	// Close the OS

	main_exit:
	NC_SystemClose();

	printf("Network task: closed.\n");

	/* post semaphore */
	Semaphore_post(semaphoreNetworkStopped);

	return;
}//NetworkTask

//
// System Task Code
//
//
// NetworkOpen
//
// This function is called after the configuration has booted
//
static void NetworkOpen()
{
	printf("Network Open start.\n");

    hTcpServer  = TaskCreate( TcpServer,  "TcpServer", OS_TASKPRINORM, 0x2000, 0, 0, 0 );

	printf("Network Open end.\n");

}//NetworkOpen

//
// NetworkClose
//
// This function is called when the network is shutting down,
// or when it no longer has any IP addresses assigned to it.
//
static void NetworkClose()
{
	printf("Network close start.\n");

    fdCloseSession( hTcpServer );

    // Kill any active console
    //ConsoleClose();

    // If we opened NETCTRL as NC_PRIORITY_HIGH, we can't
    // kill our task threads until we've given them the
    // opportunity to shutdown. We do this by manually
    // setting our task priority to NC_PRIORITY_LOW.
    TaskSetPri( TaskSelf(), NC_PRIORITY_LOW );

    TaskDestroy( hTcpServer );

	printf("Network close end.\n");

}//NetworkClose

//
// NetworkIPAddr
//
// This function is called whenever an IP address binding is
// added or removed from the system.
//
static void NetworkIPAddr( IPN IPAddr, uint IfIdx, uint fAdd )
{
IPN IPTmp;

    if( fAdd )
	{
        printf("Network Added: ");
	}
    else
	{
        printf("Network Removed: ");
	}

    // Print a message
    IPTmp = ntohl( IPAddr );
    printf("If-%d:%d.%d.%d.%d\n", IfIdx,
            (UINT8)(IPTmp>>24)&0xFF, (UINT8)(IPTmp>>16)&0xFF,
            (UINT8)(IPTmp>>8)&0xFF, (UINT8)IPTmp&0xFF );
}//NetworkIPAddr

//
// NetworkServerOpen
//
// This function opens the network servers
//
void NetworkServerOpen(void)
{
	printf("Network Server open.\n");

    hTcpServer  = TaskCreate( TcpServer,  "TcpServer", OS_TASKPRINORM, 0x2000, 0, 0, 0 );

}//NetworkServerOpen

//
// NetworkServerClose
//
// This function closes the network servers.
//
void NetworkServerClose(void)
{
	printf("Network Server close.\n");

    fdCloseSession( hTcpServer );
    TaskDestroy( hTcpServer );

}//NetworkServerClose

//
// NetworkTaskStart
//
// This function starts the network task.
//
void NetworkTaskStart(void)
{
	printf("Network task before create.\n");

	hNetworkTask  = TaskCreate(NetworkTask,  "networkTask", OS_TASKPRINORM, 0x2000, 0, 0, 0 );

}//NetworkTaskStart

//
// NetworkTaskStop
//
// This function stops the network task.
//
void NetworkTaskStop(void)
{
	printf("Network task stop.\n");

	NC_NetStop(0);

}//NetworkTaskStop


/* ========================================================================== */
/*                              END OF FILE                                   */
/* ========================================================================== */