parport_module.cpp File Reference

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/io.h>
#include <sys/time.h>
#include "midas.h"
#include "crate.h"
#include "diag.h"

Go to the source code of this file.

Macros
#define	PARALLEL_PORT0   0x1150
#define	PARALLEL_PORT1   0x1151

Functions
INT	setPP (char, int)
INT	parport_init ()
INT	parport_start_block ()
INT	parport_poll_live ()
INT	parport_poll_dead ()

Variables
bool	block_sig
static unsigned int	block_nr
struct readout_module	parport_module

Macro Definition Documentation

#define PARALLEL_PORT0   0x1150

Definition at line 7 of file parport_module.cpp.

Referenced by parport_init(), and setPP().

#define PARALLEL_PORT1   0x1151

Definition at line 8 of file parport_module.cpp.

Referenced by parport_poll_live().

Function Documentation

INT parport_init

(

)

Definition at line 64 of file parport_module.cpp.

References block_nr, PARALLEL_PORT0, printf(), and SUCCESS.

{

  printf("Opening parallel port %x\t\n", PARALLEL_PORT0);
  if (ioperm(PARALLEL_PORT0,3,1))
    {
      perror("PArallel POrt opening error\n");
      return 1;
    }
  /*
  int status = iopl( 3 );

  if (status < 0) {
    diag_print(0, "Unable to get permission to access I/O ports\n");
  }

  // turn off output
  outb(0x1d, 0x3f2);
  */

  block_nr = 0;

#if 0
  gettimeofday(&t_0,NULL);  
#endif
 
        printf("Dummy master crate init\n");
  return SUCCESS;
}

INT parport_poll_dead

(

)

Definition at line 159 of file parport_module.cpp.

{
  //printf("Send to start block\n");
  //return FE_NEED_START;
  return 0;
}

INT parport_poll_live

(

)

Definition at line 130 of file parport_module.cpp.

References FE_END_BLOCK, PARALLEL_PORT1, printf(), and SUCCESS.

{
#if 0
  struct timespec timer_now;
  clock_gettime(CLOCK_REALTIME, &timer_now);  
  unsigned int time_elapse = (timer_now.tv_sec - timer_start.tv_sec) * 1000000000 +
    (timer_now.tv_nsec - timer_start.tv_nsec);
  printf("time elapse: %ld\n", time_elapse);
  if (time_elapse > 2*1000*1000)
    {
      printf("end of block\n");
      return FE_END_BLOCK;
    }
#endif 

  unsigned char p = inb(PARALLEL_PORT1);


  if ( !(p & 0x40) )
    {
      printf("p=%i, 0x%x\n",p, p);
      printf("end of block\n");
      return FE_END_BLOCK;
    }
  

  return SUCCESS;
} 

INT parport_start_block

(

)

Definition at line 98 of file parport_module.cpp.

References block_nr, block_sig, printf(), setPP(), and SUCCESS.

{
  
  block_sig = true;
#if 0
  clock_gettime(CLOCK_REALTIME,&timer_start);
#endif
  block_nr++;
  printf("parport_start_block %i\n",block_nr);
  //setPP(255, 1);

  // Send reset 
  setPP(1<<1, 1);
  setPP(0, 1);

  // start new segment
  setPP(1, 1);
  setPP(0, 1);
  return SUCCESS;
}

INT setPP	(	char	v,
		int	usec
	)

Definition at line 54 of file parport_module.cpp.

References PARALLEL_PORT0.

Referenced by parport_start_block().

                            { 

  outb(v,PARALLEL_PORT0);
  //outb(v,PARALLEL_PORT1);

  return 0;

}

Variable Documentation

unsigned int block_nr

static

Definition at line 33 of file parport_module.cpp.

Referenced by parport_init(), and parport_start_block().

bool block_sig

Definition at line 28 of file parport_module.cpp.

Referenced by parport_start_block().

struct readout_module parport_module

Initial value:

= {
  parport_init,           
  NULL,                   
  NULL,                   
  NULL,                   
  NULL,                   
  parport_poll_live,      
  parport_poll_dead,      
  parport_start_block,    
  NULL,                   
  NULL,                   
}

Definition at line 35 of file parport_module.cpp.