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[/] [or1k/] [trunk/] [rtems-20020807/] [c/] [src/] [lib/] [libbsp/] [no_cpu/] [no_bsp/] [shmsupp/] [getcfg.c] - Rev 1765
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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 XXX target. * * INPUT PARAMETERS: * localnode - local node number * shmcfg - address of pointer to SHM Config Table * * OUTPUT PARAMETERS: * *shmcfg - pointer to SHM Config Table * XXX: FIX THE COMMENTS BELOW WHEN THE CPU IS KNOWN * NOTES: The XYZ does not have an interprocessor interrupt. * * The following table illustrates the configuration limitations: * * BUS MAX * MODE ENDIAN NODES * ========= ====== ======= * POLLED BIG 2+ * INTERRUPT **** NOT SUPPORTED **** * * 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. * * getcfg.c,v 1.7 1999/11/30 19:57:50 joel Exp */ #include <rtems.h> #include <bsp.h> #include <shm_driver.h> /* * configured if currently polling of interrupt driven */ #define INTERRUPT 0 /* XXX: */ #define POLLING 1 /* XXX: fix me -- is polling ONLY!!! */ shm_config_table BSP_shm_cfgtbl; void Shm_Get_configuration( rtems_unsigned32 localnode, shm_config_table **shmcfg ) { BSP_shm_cfgtbl.base = 0x0; BSP_shm_cfgtbl.length = 1 * MEGABYTE; BSP_shm_cfgtbl.format = SHM_BIG; /* * Override cause_intr or shm_isr if your target has * special requirements. */ 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 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; *shmcfg = &BSP_shm_cfgtbl; }