source: rtems/c/src/lib/libbsp/m68k/gen68340/include/bsp.h @ 89c86764

/*
 * Board Support Package for `Generic' Motorola MC68340
 *
 * Based on the `gen68360' board support package, and covered by the
 * original distribution terms.
 *
 *  $Id$
 */

/*  bsp.h
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.com/license/LICENSE.
 */

#ifndef __GEN68340_BSP_h
#define __GEN68340_BSP_h

#ifdef __cplusplus
extern "C" {
#endif

#include <bspopts.h>

#include <rtems.h>
#include <rtems/console.h>
#include <rtems/iosupp.h>
#include <rtems/clockdrv.h>

/*
 *  confdefs.h overrides for this BSP:
 *   - termios serial ports (defaults to 1)
 *   - Interrupt stack space is not minimum if defined.
 */

/* #define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2 */
#define CONFIGURE_INTERRUPT_STACK_MEMORY  (4 * 1024)

/*
 *  Stuff for Time Test 27
 *  Don't bother with hardware -- just use a software-interrupt
 */

#define MUST_WAIT_FOR_INTERRUPT 0

#define Install_tm27_vector( handler ) set_vector( (handler), 34, 1 )

#define Cause_tm27_intr()       /* asm volatile ("trap #2"); */

#define Clear_tm27_intr()

#define Lower_tm27_intr()

/*
 *  Simple spin delay in microsecond units for device drivers.
 *  This is very dependent on the clock speed of the target.
 */

#define rtems_bsp_delay( microseconds ) \
  { register uint32_t         _delay=(microseconds); \
    register uint32_t         _tmp=123; \
    asm volatile( "0: \
                     nbcd      %0 ; \
                     nbcd      %0 ; \
                     dbf       %1,0b" \
                  : "=d" (_tmp), "=d" (_delay) \
                  : "0"  (_tmp), "1"  (_delay) ); \
  }

/* Constants */

/* Structures */

/*
 *  Device Driver Table Entries
 */

/*
 * NOTE: Use the standard Console driver entry
 */

/*
 * NOTE: Use the standard Clock driver entry
 */

/*
 * How many libio files we want
 */

#define BSP_LIBIO_MAX_FDS       20

/* miscellaneous stuff assumed to exist */

extern rtems_configuration_table BSP_Configuration;

extern m68k_isr_entry M68Kvec[];   /* vector table address */

/* functions */

void bsp_cleanup( void );

m68k_isr_entry set_vector(
  rtems_isr_entry     handler,
  rtems_vector_number vector,
  int                 type
);

/*
 * Values assigned by link editor
 */
extern void *_RomBase, *_RamBase;

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */