rtems.c.cfe

osapi 2.0 操作系统抽象层 "系统抽象层"使得你可以实现一种对于RTOS、CPU和所运行产品物理特性完全透明的软件。使用这种公共通用接口

//
// FSW-EXEC Core RTEMS startup
//

/*
** Includes
*/
#include <rtems.h>
#include <bsp.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>


#include <ostypes.h>
#include <osapi.h>


/* 
** Includes for file system
*/
#include <imfs.h>
#include <rtems/mkrootfs.h>
//#include <rtems/untar.h>

// Include bsdnet
#include <rtems/rtems_bsdnet.h>
#include <sys/domain.h>
#include <sys/mbuf.h>
#include <sys/socketvar.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/callout.h>
#include <sys/proc.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <net/route.h>
#include <netinet/in.h>
#include <vm/vm.h>
#include <arpa/inet.h>

#include <net/netisr.h>
#include <net/route.h>

struct rtems_bsdnet_config	rtems_bsdnet_config;

// network config items
struct rtems_bsdnet_ifconfig	if1cfg;
extern int rtems_dec21140_driver_attach(struct rtems_bsdnet_ifconfig *, int);


// localhost interface config items
struct rtems_bsdnet_ifconfig	locfg;
extern int rtems_bsdnet_loopattach(void);


// end net


/*
** Prototypes
*/
rtems_task Init( rtems_task_argument ignored );
extern int OS_fswExecMain( int startType, int modeId );


/*
** RTEMS OS Configuration defintions
*/
#define TASK_INTLEVEL 0
#define CONFIGURE_INIT
#define CONFIGURE_INIT_TASK_ATTRIBUTES	(RTEMS_FLOATING_POINT | RTEMS_PREEMPT | RTEMS_NO_TIMESLICE | RTEMS_ASR | RTEMS_INTERRUPT_LEVEL(TASK_INTLEVEL))

#define CONFIGURE_MAXIMUM_TASKS         20 
#define CONFIGURE_MAXIMUM_TIMERS        3
#define CONFIGURE_MAXIMUM_SEMAPHORES    8 
#define CONFIGURE_MAXIMUM_MESSAGE_QUEUES 30

#define CONFIGURE_MAXIMUM_POSIX_THREADS         CONFIGURE_MAXIMUM_TASKS
#define CONFIGURE_MAXIMUM_POSIX_TIMERS          CONFIGURE_MAXIMUM_TIMERS
#define CONFIGURE_MAXIMUM_POSIX_SEMAPHORES      CONFIGURE_MAXIMUM_SEMAPHORES
#define CONFIGURE_MAXIMUM_POSIX_MESSAGE_QUEUES  CONFIGURE_MAXIMUM_MESSAGE_QUEUES
#define CONFIGURE_MAXIMUM_POSIX_MUTEXES         5 
#define CONFIGURE_MAXIMUM_POSIX_CONDITION_VARIABLES 5 
#define CONFIGURE_MAXIMUM_POSIX_KEYS           5 
#define CONFIGURE_MAXIMUM_POSIX_QUEUED_SIGNALS        10

#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER

#define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS    100

#define CONFIGURE_MICROSECONDS_PER_TICK         10000

/*
** This include file must be AFTER the 
** configuration data.
*/
#include <confdefs.h>


/*
** Definitions & Prototypes
*/
extern rtems_configuration_table BSP_Configuration;
extern unsigned32 _end;

void OS_create_fake_1hz(void);


/*
** Function: Init
** Purpose: RTEMS Entry Point
*/ 
rtems_task Init( rtems_task_argument ignored )
{

   printf("\n\n");

   printf( "\n\n*** RTEMS Info ***\n" );
   printf("%s", _Copyright_Notice );
   printf("%s\n\n", _RTEMS_version );

   printf(" Workspace base %08X\n", (unsigned32)BSP_Configuration.work_space_start );
   printf(" Workspace size %d\n",   BSP_Configuration.work_space_size );
   printf("  Workspace top %08X\n", (unsigned32)BSP_Configuration.work_space_start 
                                    + BSP_Configuration.work_space_size );
   printf("\n");

   printf( "*** End RTEMS info ***\n\n" );

   rtems_create_root_fs();

   printf( "\n\n*** Configuring network... ***\n\n" );
   sleep(1);

   memset(&rtems_bsdnet_config,0,sizeof(struct rtems_bsdnet_config));
   memset(&locfg,  0, sizeof(struct rtems_bsdnet_ifconfig));
   memset(&if1cfg, 0, sizeof(struct rtems_bsdnet_ifconfig));

   rtems_bsdnet_config.network_task_priority    = 1;
   rtems_bsdnet_config.mbuf_bytecount           = 128*1024;
   rtems_bsdnet_config.mbuf_cluster_bytecount   = 256*1024;

   rtems_bsdnet_config.hostname = "pDH";

   rtems_bsdnet_config.domainname = "gsfc.nasa.gov";
   rtems_bsdnet_config.gateway = "192.168.1.1";
   rtems_bsdnet_config.name_server[0]= "192.168.1.1";
   //rtems_bsdnet_config.name_server[1]= "";
   //rtems_bsdnet_config.ntp_server[0] = "192.168.1.1";
   rtems_bsdnet_config.ifconfig = &locfg;

   locfg.name = "lo0";
   locfg.attach = rtems_bsdnet_loopattach;
   locfg.ip_address= "127.0.0.1";
   locfg.ip_netmask= "255.0.0.0";
   locfg.next = &if1cfg;

   if1cfg.name = "dc1";
   if1cfg.ip_address= "192.168.1.6";
   if1cfg.ip_netmask= "255.255.255.0";
   if1cfg.attach = rtems_dec21140_driver_attach;
   if1cfg.rbuf_count = if1cfg.xbuf_count = 32;


   if( rtems_bsdnet_initialize_network() == -1 )
   {
      perror("network init");
      exit(0);
   }

   sleep(1);

   printf("\nHostname is %s.%s\n", rtems_bsdnet_config.hostname, rtems_bsdnet_config.domainname );

   {
      struct rtems_bsdnet_ifconfig *if1;

      for( if1 = &locfg; if1; if1 = if1->next )
      {
         printf("   device %s, netmask %s, address %s\n", if1->name, if1->ip_netmask, if1->ip_address );
      }
   }

   printf("   gateway %s, dns1 %s, dns2 %s\n\n\n", rtems_bsdnet_config.gateway,
                                                   rtems_bsdnet_config.name_server[0], 
                                                   rtems_bsdnet_config.name_server[1] );
   // end network init ---------------------------------------------------------

   OS_create_fake_1hz();

   /*
   ** Pass in the Restart type
   */
   OS_fswExecMain(OS_COLD,OS_PROM);
   // OS_fswExecMain(OS_POWER_ON,OS_PROM);
   

   /*
   ** End the RTEMS init thread 
   */
}









/*
********************************************************************************
* Fake 1hz timer routines
* Start an RTEMS timer that calls the 1hz ISR code 
*********************************************************************************
*/
extern void OS_1HzISRShell(void);

rtems_timer_service_routine MyTimer(
      rtems_id  timer_id,
      void      *user_data
)
{                                                                                                          
   rtems_status_code rtemsStatus; 
   rtemsStatus = rtems_timer_reset(timer_id);
   OS_1HzISRShell();

}
	    

void OS_create_fake_1hz(void)
{
   rtems_status_code rtemsStatus;
   rtems_name        timerName;
   rtems_id          timerId;

   /*
   ** Create a timer 
   */
   timerName = rtems_build_name('T','M','R','0');
   rtemsStatus = rtems_timer_create(timerName, &timerId);
   if (rtemsStatus != RTEMS_SUCCESSFUL )
   {
       printf("Timer Create Failed\n");
       return;
   }                                                                                                       

   /*                        
   ** Activate the timer                                                                                   
   */                                                                                                      
   rtemsStatus = rtems_timer_fire_after ( timerId, 100, MyTimer, 0);   
   if (rtemsStatus != RTEMS_SUCCESSFUL )                                                                   
    {                                                                                                       
        printf("Timer fire_after call Failed\n");  
        return;                                                                                             
    }                                                                                                       
    else                                                                                                    
    {                                                                                                       
        printf("Timer activated.\n");
    }                                                                                                       
}