bsps: Move MPCI support to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

5 files changed, 188 insertions, 0 deletions

diff --git a/bsps/powerpc/psim/mpci/README b/bsps/powerpc/psim/mpci/README
new file mode 100644
index 0000000000..ba2d67752f
--- /dev/null
+++ b/bsps/powerpc/psim/mpci/README
@@ -0,0 +1,3 @@
+This shared memory driver support code works with a modified version
+of the PowerPC Simulator.  The modifications are not yet merged
+into the mainsteam distribution.
diff --git a/bsps/powerpc/psim/mpci/addrconv.c b/bsps/powerpc/psim/mpci/addrconv.c
new file mode 100644
index 0000000000..2656bc1ccf
--- /dev/null
+++ b/bsps/powerpc/psim/mpci/addrconv.c
@@ -0,0 +1,28 @@
+/*  Shm_Convert_address
+ *
+ *  No address range conversion is required.
+ *
+ *  Input parameters:
+ *    address - address to convert
+ *
+ *  Output parameters:
+ *    returns - converted address
+ *
+ *  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.rtems.org/license/LICENSE.
+ */
+
+#include <rtems.h>
+#include <bsp.h>
+#include <shm_driver.h>
+
+void *Shm_Convert_address(
+  void *address
+)
+{
+  return ( address );
+}
diff --git a/bsps/powerpc/psim/mpci/getcfg.c b/bsps/powerpc/psim/mpci/getcfg.c
new file mode 100644
index 0000000000..6be42f8b9c
--- /dev/null
+++ b/bsps/powerpc/psim/mpci/getcfg.c
@@ -0,0 +1,63 @@
+/*  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;
+
+}
diff --git a/bsps/powerpc/psim/mpci/lock.c b/bsps/powerpc/psim/mpci/lock.c
new file mode 100644
index 0000000000..6c0907e30f
--- /dev/null
+++ b/bsps/powerpc/psim/mpci/lock.c
@@ -0,0 +1,64 @@
+/*  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) 1989-2008.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may in
+ *  the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems.h>
+#include <bsp.h>
+#include <shm_driver.h>
+#include <psim.h>
+
+/*
+ *  Shm_Initialize_lock
+ *
+ *  Initialize the lock for the specified locked queue.
+ */
+
+void Shm_Initialize_lock(
+  Shm_Locked_queue_Control *lq_cb
+)
+{
+  /* nothing required -- done implicitly by device tree */
+}
+
+/*  void _Shm_Lock( &lq_cb )
+ *
+ *  This shared memory locked queue support routine locks the
+ *  specified locked queue.  It disables interrupts to prevent
+ *  a deadlock condition.
+ */
+
+static rtems_interrupt_level level;
+
+void Shm_Lock(
+  Shm_Locked_queue_Control *lq_cb
+)
+{
+  rtems_interrupt_disable( level );
+    (void) PSIM.Semaphore.lock;
+}
+
+/*
+ *  Shm_Unlock
+ *
+ *  Unlock the lock for the specified locked queue.
+ */
+
+void Shm_Unlock(
+  Shm_Locked_queue_Control *lq_cb
+)
+{
+    (void) PSIM.Semaphore.unlock;
+  rtems_interrupt_enable( level );
+}
diff --git a/bsps/powerpc/psim/mpci/mpisr.c b/bsps/powerpc/psim/mpci/mpisr.c
new file mode 100644
index 0000000000..8987a5a272
--- /dev/null
+++ b/bsps/powerpc/psim/mpci/mpisr.c
@@ -0,0 +1,30 @@
+/*
+ *  NOTE: This routine is not used when in polling mode.  Either
+ *        this routine OR Shm_clockisr is used in a particular system.
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may in
+ *  the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems.h>
+#include <bsp.h>
+#include <shm_driver.h>
+
+/*  void _Shm_setvec( )
+ *
+ *  This driver routine sets the SHM interrupt vector to point to the
+ *  driver's SHM interrupt service routine.
+ *
+ *  Input parameters:  NONE
+ *
+ *  Output parameters: NONE
+ */
+
+void Shm_setvec()
+{
+  /* not supported */
+}