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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) 1989-2008.
* 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.org/license/LICENSE.
*/
#include <rtems.h>
#include <psim.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(
uint32_t localnode,
shm_config_table **shmcfg
)
{
BSP_shm_cfgtbl.base = (uint32_t*)PSIM.SharedMemory;
BSP_shm_cfgtbl.length = sizeof(PSIM.SharedMemory);
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;
}
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