io.h

Go to the documentation of this file.

 
/*
 *  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.
 */
 
#ifndef _RTEMS_IO_H
#define _RTEMS_IO_H
 
#include <rtems/rtems/status.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef uint32_t rtems_device_major_number;
 
typedef uint32_t rtems_device_minor_number;
 
typedef rtems_status_code rtems_device_driver;
 
typedef rtems_device_driver (*rtems_device_driver_entry)(
  rtems_device_major_number,
  rtems_device_minor_number,
  void *
);
 
typedef struct {
  rtems_device_driver_entry initialization_entry;
  rtems_device_driver_entry open_entry;
  rtems_device_driver_entry close_entry;
  rtems_device_driver_entry read_entry;
  rtems_device_driver_entry write_entry;
  rtems_device_driver_entry control_entry;
} rtems_driver_address_table;
 
rtems_status_code rtems_io_driver_io_error(
  rtems_device_major_number major,
  rtems_device_minor_number minor,
  void *arg
);
 
rtems_status_code rtems_io_register_driver(
  rtems_device_major_number major,
  const rtems_driver_address_table *driver_table,
  rtems_device_major_number *registered_major
);
 
rtems_status_code rtems_io_unregister_driver(
  rtems_device_major_number major
);
 
rtems_status_code rtems_io_register_name(
  const char *device_name,
  rtems_device_major_number major,
  rtems_device_minor_number minor
);
 
rtems_status_code rtems_io_initialize(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *argument
);
 
rtems_status_code rtems_io_open(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *argument
);
 
rtems_status_code rtems_io_close(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *argument
);
 
rtems_status_code rtems_io_read(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *argument
);
 
rtems_status_code rtems_io_write(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *argument
);
 
rtems_status_code rtems_io_control(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *argument
);
 
typedef struct {
    const char               *device_name;
    size_t                    device_name_length;
    rtems_device_major_number major;
    rtems_device_minor_number minor;
} rtems_driver_name_t;
 
rtems_status_code rtems_io_lookup_name(
    const char           *name,
    rtems_driver_name_t  *device_info
) RTEMS_DEPRECATED;
 
#ifdef __cplusplus
}
#endif
 
#endif
/* end of include file */