forked from Imagelibrary/rtems
184 lines
5.7 KiB
C
184 lines
5.7 KiB
C
/* config.h
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*
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* This include file contains the table of user defined configuration
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* parameters.
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#ifndef __RTEMS_CONFIGURATION_h
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#define __RTEMS_CONFIGURATION_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Unlimited object support. Changes the configuration table entry for POSIX
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* or RTEMS APIs to bounded only by the memory of the work-space.
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*
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* Use the macro to define the resource unlimited before placing in
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* the configuration table.
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*/
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#include <rtems/score/object.h>
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#define RTEMS_UNLIMITED_OBJECTS OBJECTS_UNLIMITED_OBJECTS
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#define rtems_resource_unlimited(resource) \
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( resource | RTEMS_UNLIMITED_OBJECTS )
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/*
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* This is kind of kludgy but it allows targets to totally ignore the
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* optional APIs like POSIX and ITRON safely.
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*/
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#ifdef RTEMS_POSIX_API
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#include <rtems/posix/config.h>
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#else
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typedef void *posix_api_configuration_table;
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#endif
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#ifdef RTEMS_ITRON_API
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#include <rtems/itron.h>
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#include <rtems/itron/config.h>
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#else
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typedef void *itron_api_configuration_table;
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#endif
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#include <rtems/rtems/config.h>
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/* XXX <rtems/rtems/config.h> should cover these
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#include <rtems/rtems/status.h>
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#include <rtems/rtems/types.h>
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#include <rtems/rtems/tasks.h>
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*/
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#include <rtems/extension.h>
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#include <rtems/io.h>
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#if defined(RTEMS_MULTIPROCESSING)
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#include <rtems/score/mpci.h>
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#endif
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/*
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* The following records define the Multiprocessor Configuration
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* Table. This table defines the multiprocessor system
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* characteristics which must be known by RTEMS in a multiprocessor
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* system.
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*/
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typedef struct {
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uint32_t node; /* local node number */
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uint32_t maximum_nodes; /* maximum # nodes in system */
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uint32_t maximum_global_objects; /* maximum # global objects */
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uint32_t maximum_proxies; /* maximum # proxies */
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#if defined(RTEMS_MULTIPROCESSING)
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rtems_mpci_table *User_mpci_table; /* pointer to MPCI table */
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#else
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void *User_mpci_table; /* pointer to MPCI table */
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#endif
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} rtems_multiprocessing_table;
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/*
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* The following records define the Configuration Table. The
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* information contained in this table is required in all
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* RTEMS systems, whether single or multiprocessor. This
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* table primarily defines the following:
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*
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* + location and size of the RTEMS Workspace
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* + microseconds per clock tick
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* + clock ticks per task timeslice
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* + required number of each object type for each API configured
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*/
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typedef struct {
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void *work_space_start;
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uint32_t work_space_size;
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uint32_t maximum_extensions;
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uint32_t microseconds_per_tick;
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uint32_t ticks_per_timeslice;
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uint32_t maximum_devices;
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uint32_t maximum_drivers;
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uint32_t number_of_device_drivers;
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rtems_driver_address_table *Device_driver_table;
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uint32_t number_of_initial_extensions;
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rtems_extensions_table *User_extension_table;
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rtems_multiprocessing_table *User_multiprocessing_table;
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rtems_api_configuration_table *RTEMS_api_configuration;
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posix_api_configuration_table *POSIX_api_configuration;
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itron_api_configuration_table *ITRON_api_configuration;
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} rtems_configuration_table;
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/*
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* The following are provided strictly for the convenience of
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* the user. They are not used in RTEMS itself.
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*/
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SAPI_EXTERN rtems_configuration_table *_Configuration_Table;
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SAPI_EXTERN rtems_multiprocessing_table *_Configuration_MP_table;
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/*
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* Some handy macros to avoid dependencies on either the BSP
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* or the exact format of the configuration table.
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*/
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#define rtems_configuration_get_table() \
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(&_Configuration_Table)
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#define rtems_configuration_get_work_space_start() \
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(_Configuration_Table->work_space_start)
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#define rtems_configuration_get_work_space_size() \
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(_Configuration_Table->work_space_size)
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#define rtems_configuration_get_maximum_extensions() \
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(_Configuration_Table->maximum_extensions)
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#define rtems_configuration_get_microseconds_per_tick() \
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(_Configuration_Table->microseconds_per_tick)
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#define rtems_configuration_get_milliseconds_per_tick() \
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(_Configuration_Table->microseconds_per_tick / 1000)
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#define rtems_configuration_get_ticks_per_timeslice() \
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(_Configuration_Table->ticks_per_timeslice)
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#define rtems_configuration_get_maximum_devices() \
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(_Configuration_Table->maximum_devices)
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#define rtems_configuration_get_number_of_device_drivers() \
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(_Configuration_Table->number_of_device_drivers)
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#define rtems_configuration_get_device_driver_table() \
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(_Configuration_Table->device_driver_table)
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#define rtems_configuration_get_number_of_initial_extensions() \
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(_Configuration_Table->number_of_initial_extensions)
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#define rtems_configuration_get_user_extension_table() \
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(_Configuration_Table->user_extension_table)
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#define rtems_configuration_get_user_multiprocessing_table() \
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(_Configuration_Table->User_multiprocessing_table)
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#define rtems_configuration_get_rtems_api_configuration() \
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(_Configuration_Table->RTEMS_api_configuration)
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#define rtems_configuration_get_posix_api_configuration() \
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(_Configuration_Table->POSIX_api_configuration)
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#define rtems_configuration_get_itron_api_configuration() \
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(_Configuration_Table->ITRON_api_configuration)
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#ifdef __cplusplus
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}
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#endif
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#endif
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/* end of include file */
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