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-rw-r--r--cpukit/rtems/src/dpmem.c268
1 files changed, 0 insertions, 268 deletions
diff --git a/cpukit/rtems/src/dpmem.c b/cpukit/rtems/src/dpmem.c
deleted file mode 100644
index 0aacecec5b..0000000000
--- a/cpukit/rtems/src/dpmem.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- * Dual Port Memory Manager
- *
- * 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 <rtems/system.h>
-#include <rtems/address.h>
-#include <rtems/dpmem.h>
-#include <rtems/object.h>
-#include <rtems/thread.h>
-
-/*PAGE
- *
- * _Dual_ported_memory_Manager_initialization
- *
- * This routine initializes all dual-ported memory manager related
- * data structures.
- *
- * Input parameters:
- * maximum_ports - number of ports to initialize
- *
- * Output parameters: NONE
- */
-
-void _Dual_ported_memory_Manager_initialization(
- unsigned32 maximum_ports
-)
-{
- _Objects_Initialize_information(
- &_Dual_ported_memory_Information,
- FALSE,
- maximum_ports,
- sizeof( Dual_ported_memory_Control )
- );
-}
-
-/*PAGE
- *
- * rtems_port_create
- *
- * This directive creates a port into a dual-ported memory area.
- *
- * Input parameters:
- * name - user defined port name
- * internal_start - internal start address of port
- * external_start - external start address of port
- * length - physical length in bytes
- * id - address of port id to set
- *
- * Output parameters:
- * id - port id
- * RTEMS_SUCCESSFUL - if successful
- * error code - if unsuccessful
- */
-
-rtems_status_code rtems_port_create(
- Objects_Name name,
- void *internal_start,
- void *external_start,
- unsigned32 length,
- Objects_Id *id
-)
-{
- register Dual_ported_memory_Control *the_port;
-
- if ( !_Objects_Is_name_valid( name) )
- return ( RTEMS_INVALID_NAME );
-
- if ( !_Addresses_Is_aligned( internal_start ) ||
- !_Addresses_Is_aligned( external_start ) )
- return( RTEMS_INVALID_ADDRESS );
-
- _Thread_Disable_dispatch(); /* to prevent deletion */
-
- the_port = _Dual_ported_memory_Allocate();
-
- if ( !the_port ) {
- _Thread_Enable_dispatch();
- return( RTEMS_TOO_MANY );
- }
-
- the_port->internal_base = internal_start;
- the_port->external_base = external_start;
- the_port->length = length - 1;
-
- _Objects_Open( &_Dual_ported_memory_Information,
- &the_port->Object, name );
- *id = the_port->Object.id;
- _Thread_Enable_dispatch();
- return( RTEMS_SUCCESSFUL );
-}
-
-/*PAGE
- *
- * rtems_port_ident
- *
- * This directive returns the system ID associated with
- * the port name.
- *
- * Input parameters:
- * name - user defined port name
- * id - pointer to port id
- *
- * Output parameters:
- * *id - port id
- * RTEMS_SUCCESSFUL - if successful
- * error code - if unsuccessful
- */
-
-rtems_status_code rtems_port_ident(
- Objects_Name name,
- Objects_Id *id
-)
-{
- return(
- _Objects_Name_to_id(
- &_Dual_ported_memory_Information,
- name,
- RTEMS_SEARCH_ALL_NODES,
- id
- )
- );
-}
-
-/*PAGE
- *
- * rtems_port_delete
- *
- * This directive allows a thread to delete a dual-ported memory area
- * specified by the dual-ported memory identifier.
- *
- * Input parameters:
- * id - dual-ported memory area id
- *
- * Output parameters:
- * RTEMS_SUCCESSFUL - if successful
- * error code - if unsuccessful
- */
-
-rtems_status_code rtems_port_delete(
- Objects_Id id
-)
-{
- register Dual_ported_memory_Control *the_port;
- Objects_Locations location;
-
- the_port = _Dual_ported_memory_Get( id, &location );
- switch ( location ) {
- case OBJECTS_ERROR:
- return( RTEMS_INVALID_ID );
- case OBJECTS_REMOTE: /* this error cannot be returned */
- return( RTEMS_INTERNAL_ERROR );
- case OBJECTS_LOCAL:
- _Objects_Close( &_Dual_ported_memory_Information, &the_port->Object );
- _Dual_ported_memory_Free( the_port );
- _Thread_Enable_dispatch();
- return( RTEMS_SUCCESSFUL );
- }
-
- return( RTEMS_INTERNAL_ERROR ); /* unreached - only to remove warnings */
-}
-
-/*PAGE
- *
- * rtems_port_internal_to_external
- *
- * This directive converts an internal dual-ported memory address to an
- * external dual-ported memory address. If the given internal address
- * is an invalid dual-ported address, then the external address is set
- * to the given internal address.
- *
- * Input parameters:
- * id - id of dual-ported memory object
- * internal - internal address to set
- * external - pointer to external address
- *
- * Output parameters:
- * external - external address
- * RTEMS_SUCCESSFUL - always succeeds
- */
-
-rtems_status_code rtems_port_internal_to_external(
- Objects_Id id,
- void *internal,
- void **external
-)
-{
- register Dual_ported_memory_Control *the_port;
- Objects_Locations location;
- unsigned32 ending;
-
- the_port = _Dual_ported_memory_Get( id, &location );
- switch ( location ) {
- case OBJECTS_ERROR:
- return( RTEMS_INVALID_ID );
- case OBJECTS_REMOTE: /* this error cannot be returned */
- return( RTEMS_INTERNAL_ERROR );
- case OBJECTS_LOCAL:
- ending = _Addresses_Subtract( internal, the_port->internal_base );
- if ( ending > the_port->length )
- *external = internal;
- else
- *external = _Addresses_Add_offset( the_port->external_base,
- ending );
- _Thread_Enable_dispatch();
- return( RTEMS_SUCCESSFUL );
- }
-
- return( RTEMS_INTERNAL_ERROR ); /* unreached - only to remove warnings */
-}
-
-/*PAGE
- *
- * rtems_port_external_to_internal
- *
- * This directive converts an external dual-ported memory address to an
- * internal dual-ported memory address. If the given external address
- * is an invalid dual-ported address, then the internal address is set
- * to the given external address.
- *
- * Input parameters:
- * id - id of dp memory object
- * external - external address
- * internal - pointer of internal address to set
- *
- * Output parameters:
- * internal - internal address
- * RTEMS_SUCCESSFUL - always succeeds
- */
-
-rtems_status_code rtems_port_external_to_internal(
- Objects_Id id,
- void *external,
- void **internal
-)
-{
- register Dual_ported_memory_Control *the_port;
- Objects_Locations location;
- unsigned32 ending;
-
- the_port = _Dual_ported_memory_Get( id, &location );
- switch ( location ) {
- case OBJECTS_ERROR:
- return( RTEMS_INVALID_ID );
- case OBJECTS_REMOTE: /* this error cannot be returned */
- return( RTEMS_INTERNAL_ERROR );
- case OBJECTS_LOCAL:
- ending = _Addresses_Subtract( external, the_port->external_base );
- if ( ending > the_port->length )
- *internal = external;
- else
- *internal = _Addresses_Add_offset( the_port->internal_base,
- ending );
- _Thread_Enable_dispatch();
- return( RTEMS_SUCCESSFUL );
- }
-
- return( RTEMS_INTERNAL_ERROR ); /* unreached - only to remove warnings */
-}