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/*

 *  This set of routines starts the application.  It includes application,

 *  board, and monitor specific initialization and configuration.

 *  The generic CPU dependent initialization has been performed

 *  before any of these are invoked.

 *

 *  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.OARcorp.com/rtems/license.html.

 *

 *  bspstart.c,v 1.4 2002/01/04 17:40:43 joel Exp

 */

#include <string.h>

#include <bsp.h>

#include <rtems/libio.h>

#include <rtems/libcsupport.h>

/*

 *  The original table from the application and our copy of it with

 *  some changes.

 */

extern rtems_configuration_table  Configuration;

rtems_configuration_table         BSP_Configuration;

rtems_cpu_table   Cpu_table;

/*

 *  Use the shared implementations of the following routines

 */

void bsp_postdriver_hook(void);

void bsp_libc_init( void *, unsigned32, int );

extern void bsp_spurious_initialize();

/*

 *  bsp_pretasking_hook

 *

 *  BSP pretasking hook.  Called just before drivers are initialized.

 *  Used to setup libc and install any BSP extensions.

 */

void bsp_pretasking_hook(void)

{

  extern void *_HeapStart;

  extern rtems_unsigned32 _HeapSize;

  bsp_libc_init(&_HeapStart, (unsigned int) &_HeapSize, 0);

#ifdef RTEMS_DEBUG

  rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );

#endif

  bsp_spurious_initialize();

}

/*

 *  bsp_start

 *

 *  This routine does the bulk of the system initialization.

 */

#include <rtems/bspIo.h>

BSP_output_char_function_type           BSP_output_char;

BSP_polling_getchar_function_type       BSP_poll_char;

extern void C4X_BSP_output_char(char c);

void bsp_start( void )

{

  extern void *_WorkspaceBase;

  extern rtems_unsigned32 _WorkspaceMax;

  /*

   * Set up our hooks

   * Make sure libc_init is done before drivers initialized so that

   * they can use atexit()

   */

  Cpu_table.pretasking_hook = bsp_pretasking_hook;    /* init libc, etc. */

  Cpu_table.postdriver_hook = bsp_postdriver_hook;

  /*

   *  SIS does zero out memory BUT only when IT begins execution.  Thus

   *  if we want to have a clean slate in the workspace each time we

   *  begin execution of OUR application, then we must zero the workspace.

   */

  Cpu_table.do_zero_of_workspace = FALSE;

  /*

   *  This should be enough interrupt stack.

   */

  Cpu_table.interrupt_stack_size = 0;

  BSP_Configuration.work_space_start = (void *)&_WorkspaceBase;

  /* XXX check to see if satisfying small memory model */

  if ( BSP_Configuration.work_space_size > (int) &_WorkspaceMax )

    rtems_fatal_error_occurred( 0x43218765 );

  BSP_output_char = C4X_BSP_output_char;

  BSP_poll_char = (BSP_polling_getchar_function_type) NULL;

}