1 files changed, 89 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/hppa1.1/simhppa/shmsupp/getcfg.c b/c/src/lib/libbsp/hppa1.1/simhppa/shmsupp/getcfg.c
new file mode 100644
index 0000000000..5be4975624
--- /dev/null
+++ b/c/src/lib/libbsp/hppa1.1/simhppa/shmsupp/getcfg.c
@@ -0,0 +1,89 @@
+/*  void Shm_Get_configuration( localnode, &shmcfg )
+ *
+ *  This routine initializes, if necessary, and returns a pointer
+ *  to the Shared Memory Configuration Table for the HP PA-RISC
+ *  simulator.
+ *
+ *  INPUT PARAMETERS:
+ *    localnode - local node number
+ *    shmcfg    - address of pointer to SHM Config Table
+ *
+ *  OUTPUT PARAMETERS:
+ *    *shmcfg   - pointer to SHM Config Table
+ *
+ *  NOTES:  The MP interrupt used is the Runway bus' ability to directly
+ *          address the control registers of up to four CPUs and cause
+ *          interrupts on them.
+ *
+ *          The following table illustrates the configuration limitations:
+ *
+ *                                   BUS     MAX
+ *                          MODE    ENDIAN  NODES
+ *                        ========= ====== =======
+ *                         POLLED    BIG    2+
+ *                        INTERRUPT  BIG    2..4 (on Runway)
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may in
+ *  the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+
+#include <shm.h>
+
+#define INTERRUPT 0        /* can be interrupt or polling */
+#define POLLING   1
+
+#define HPPA_RUNWAY_PROC_HPA_BASE  ((void *) 0xFFFA0000)
+
+/* given a processor number, where is its HPA? */
+#define HPPA_RUNWAY_HPA(cpu)   \
+  ((rtems_unsigned32) (HPPA_RUNWAY_PROC_HPA_BASE + ((cpu) * 0x2000)))
+
+#define HPPA_RUNWAY_REG_IO_EIR_OFFSET   0x000
+
+shm_config_table BSP_shm_cfgtbl;
+
+extern void Shm_Cause_interrupt_pxfl( rtems_unsigned32 node );
+
+void Shm_Get_configuration(
+  rtems_unsigned32   localnode,
+  shm_config_table **shmcfg
+)
+{
+   BSP_shm_cfgtbl.base         = (vol_u32 *) 0x44000000;
+   BSP_shm_cfgtbl.length       = 16 * KILOBYTE;
+   BSP_shm_cfgtbl.format       = SHM_BIG;
+
+   BSP_shm_cfgtbl.cause_intr   = Shm_Cause_interrupt_pxfl;
+
+#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 =
+        (vol_u32 *) (HPPA_RUNWAY_HPA( localnode - 1) +
+                     HPPA_RUNWAY_REG_IO_EIR_OFFSET);
+   BSP_shm_cfgtbl.Intr.value   = HPPA_INTERRUPT_EXTERNAL_MPCI;
+   BSP_shm_cfgtbl.Intr.length  = LONG;
+#endif
+
+   *shmcfg = &BSP_shm_cfgtbl;
+}
+