changes remerged after lost in disk crash -- recovered from snapshot, partially recovered working tree, etc

5 files changed, 220 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/unix/posix/shmsupp/README b/c/src/lib/libbsp/unix/posix/shmsupp/README
index e69de29bb2..93d6fcbe8c 100644
--- a/c/src/lib/libbsp/unix/posix/shmsupp/README
+++ b/c/src/lib/libbsp/unix/posix/shmsupp/README
@@ -0,0 +1,9 @@
+#
+#  $Id$
+#
+
+This directory contains the SHM driver support files for 
+System V/POSIX derived UNIX flavors.
+
+WARNING: The interrupt support in this directory currently will
+         only work in a homogeneous system.
diff --git a/c/src/lib/libbsp/unix/posix/shmsupp/addrconv.c b/c/src/lib/libbsp/unix/posix/shmsupp/addrconv.c
index e69de29bb2..2b34ec8584 100644
--- a/c/src/lib/libbsp/unix/posix/shmsupp/addrconv.c
+++ b/c/src/lib/libbsp/unix/posix/shmsupp/addrconv.c
@@ -0,0 +1,30 @@
+/*  addrconv.v
+ *
+ *  No address range conversion is required.
+ *
+ *  Input parameters:
+ *    addr    - address to convert
+ *
+ *  Output parameters:
+ *    returns - converted address
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <shm.h>
+
+void *Shm_Convert_address(
+  void *addr
+)
+{
+  return ( addr );
+}
diff --git a/c/src/lib/libbsp/unix/posix/shmsupp/getcfg.c b/c/src/lib/libbsp/unix/posix/shmsupp/getcfg.c
index e69de29bb2..c912447631 100644
--- a/c/src/lib/libbsp/unix/posix/shmsupp/getcfg.c
+++ b/c/src/lib/libbsp/unix/posix/shmsupp/getcfg.c
@@ -0,0 +1,74 @@
+/*  void Shm_get_config( localnode, &shmcfg )
+ *
+ *  This routine initializes, if necessary, and returns a pointer
+ *  to the Shared Memory Configuration Table for the UNIX
+ *  simulator.
+ *
+ *  INPUT PARAMETERS:
+ *    localnode - local node number
+ *    shmcfg    - address of pointer to SHM Config Table
+ *
+ *  OUTPUT PARAMETERS:
+ *    *shmcfg   - pointer to SHM Config Table
+ *
+ *  NOTES:  This driver is capable of supporting a practically unlimited
+ *          number of nodes.
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <shm.h>
+
+shm_config_table BSP_shm_cfgtbl;
+
+int              semid;
+
+void Shm_Cause_interrupt_unix(
+  rtems_unsigned32 node
+);
+
+void Shm_Get_configuration(
+  rtems_unsigned32   localnode,
+  shm_config_table **shmcfg
+)
+{
+  _CPU_SHM_Init(
+    Shm_Maximum_nodes,
+    Shm_Is_master_node(),
+    (void **)&BSP_shm_cfgtbl.base,
+    (unsigned32 *)&BSP_shm_cfgtbl.length
+  );
+
+  BSP_shm_cfgtbl.format       = SHM_BIG;
+
+  BSP_shm_cfgtbl.cause_intr   = Shm_Cause_interrupt_unix;
+
+#ifdef NEUTRAL_BIG
+  BSP_shm_cfgtbl.convert      = NULL_CONVERT;
+#else
+  BSP_shm_cfgtbl.convert      = CPU_swap_u32;
+#endif
+
+  if ( _CPU_SHM_Get_vector() ) {
+    BSP_shm_cfgtbl.poll_intr    = INTR_MODE;
+    BSP_shm_cfgtbl.Intr.address = (vol_u32 *) _CPU_Get_pid(); /* process id */
+    BSP_shm_cfgtbl.Intr.value   = _CPU_SHM_Get_vector();  /* signal to send */
+    BSP_shm_cfgtbl.Intr.length  = LONG;
+  } else {
+    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;
+}
diff --git a/c/src/lib/libbsp/unix/posix/shmsupp/intr.c b/c/src/lib/libbsp/unix/posix/shmsupp/intr.c
index e69de29bb2..243af403d9 100644
--- a/c/src/lib/libbsp/unix/posix/shmsupp/intr.c
+++ b/c/src/lib/libbsp/unix/posix/shmsupp/intr.c
@@ -0,0 +1,33 @@
+/*  void Shm_interrupt_unix( node )
+ *
+ *  This routine is the shared memory driver routine which
+ *  generates interrupts to other CPUs.
+ *
+ *  Input parameters:
+ *    node          - destination of this packet (0 = broadcast)
+ *
+ *  Output parameters: NONE
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <shm.h>
+
+void Shm_Cause_interrupt_unix(
+  rtems_unsigned32 node
+)
+{
+  Shm_Interrupt_information *intr;
+  intr = &Shm_Interrupt_table[node];
+ 
+  _CPU_SHM_Send_interrupt( (int) intr->address, (int) intr->value );
+}
diff --git a/c/src/lib/libbsp/unix/posix/shmsupp/lock.c b/c/src/lib/libbsp/unix/posix/shmsupp/lock.c
index e69de29bb2..76a57d0a06 100644
--- a/c/src/lib/libbsp/unix/posix/shmsupp/lock.c
+++ b/c/src/lib/libbsp/unix/posix/shmsupp/lock.c
@@ -0,0 +1,74 @@
+/*  Shared Memory Lock Routines
+ *
+ *  This shared memory locked queue support routine need to be
+ *  able to lock the specified locked queue.  Interrupts are
+ *  disabled while the queue is locked to prevent preemption
+ *  and deadlock when two tasks poll for the same lock.
+ *  previous level.
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <shm.h>
+
+extern int      semid;
+
+/*
+ *  Shm_Initialize_lock
+ *
+ *  Initialize the lock for the specified locked queue.
+ */
+
+void Shm_Initialize_lock(
+  Shm_Locked_queue_Control *lq_cb
+)
+{
+  lq_cb->lock = lq_cb - Shm_Locked_queues;
+}
+
+/*  Shm_Lock( &lq_cb )
+ *
+ *  This shared memory locked queue support routine locks the
+ *  specified locked queue.  It disables interrupts to prevent
+ *  a deadlock condition.
+ */
+
+void Shm_Lock(
+  Shm_Locked_queue_Control *lq_cb
+)
+{
+  rtems_unsigned32   isr_level;
+
+  rtems_interrupt_disable( isr_level );
+
+  Shm_isrstat = isr_level;
+
+  _CPU_SHM_Lock( lq_cb->lock );
+}
+
+/*
+ *  Shm_Unlock
+ *
+ *  Unlock the lock for the specified locked queue.
+ */
+
+void Shm_Unlock(
+  Shm_Locked_queue_Control *lq_cb
+)
+{
+  rtems_unsigned32   isr_level;
+
+  _CPU_SHM_Unlock( lq_cb->lock );
+
+  isr_level = Shm_isrstat;
+  rtems_interrupt_enable( isr_level );
+}