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/*  void Shm_Get_configuration( localnode, &shmcfg )

 *

 *  This routine initializes, if necessary, and returns a pointer

 *  to the Shared Memory Configuration Table for the PowerPC PSIM.

 *

 *  INPUT PARAMETERS:

 *    localnode - local node number

 *    shmcfg    - address of pointer to SHM Config Table

 *

 *  OUTPUT PARAMETERS:

 *    *shmcfg   - pointer to SHM Config Table

 *

 *  NOTES:  No interrupt support.

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  $Id: getcfg.c,v 1.2 2001-09-27 12:01:02 chris Exp $

 */

#include <rtems.h>

#include "shm_driver.h"

#define INTERRUPT 0                   /* PSIM target supports only */

#define POLLING   1                   /* polling mode. */

shm_config_table BSP_shm_cfgtbl;

void Shm_Get_configuration(

  rtems_unsigned32   localnode,

  shm_config_table **shmcfg

)

{

   BSP_shm_cfgtbl.base         = (rtems_unsigned32 *)0xc0000000;

   BSP_shm_cfgtbl.length       = 64 * 1024;

   BSP_shm_cfgtbl.format       = SHM_BIG;

   BSP_shm_cfgtbl.cause_intr   = Shm_Cause_interrupt;

#ifdef NEUTRAL_BIG

   BSP_shm_cfgtbl.convert      = NULL_CONVERT;

#else

   BSP_shm_cfgtbl.convert      = CPU_swap_u32;

#endif

#if (POLLING==1)

   BSP_shm_cfgtbl.poll_intr    = POLLED_MODE;

   BSP_shm_cfgtbl.Intr.address = NO_INTERRUPT;

   BSP_shm_cfgtbl.Intr.value   = NO_INTERRUPT;

   BSP_shm_cfgtbl.Intr.length  = NO_INTERRUPT;

#else

   BSP_shm_cfgtbl.poll_intr    = INTR_MODE;

   BSP_shm_cfgtbl.Intr.address = 0;

   BSP_shm_cfgtbl.Intr.value   = 0;

   BSP_shm_cfgtbl.Intr.length  = BYTE;

#endif

   *shmcfg = &BSP_shm_cfgtbl;

}