source: rtems/cpukit/include/rtems/console.h @ 1082798

/**
 * @file
 * 
 * @brief Console Driver for all Boards
 *
 * This file describes the Console Device Driver for all boards.
 * This driver provides support for the standard C Library.
 */

/*
 *  COPYRIGHT (c) 1989-2011.
 *  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_CONSOLE_H
#define _RTEMS_CONSOLE_H

#include <rtems/io.h> /* rtems_device_driver */

#ifdef __cplusplus
extern "C" {
#endif

/**
 * This macro defines the standard name for the console device
 * that is available to applications.
 */
#define CONSOLE_DEVICE_NAME "/dev/console"

/**
 * This macro defines the standard device driver table entry for
 * a console device driver.
 */
#define CONSOLE_DRIVER_TABLE_ENTRY \
  { console_initialize, console_open, console_close, \
    console_read, console_write, console_control }

/**
 * @brief Console initialization entry point.
 *
 * This method initializes the console device driver.
 *
 * @param[in] major is the device driver major number.
 * @param[in] minor is the device driver minor number.
 * @param[in] arg is the parameters to this call.
 *
 * @retval RTEMS_SUCCESSFUL The device driver is successfully initialized.
 */
rtems_device_driver console_initialize(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *arg
);

/**
 * @brief Console open entry point.
 *
 * This method opens a specific device supported by the
 * console device driver.
 *
 * @param[in] major is the device driver major number
 * @param[in] minor is the device driver minor number
 * @param[in] arg is the parameters to this call
 *
 * @retval RTEMS_SUCCESSFUL The device driver is successfully opened.
 */
rtems_device_driver console_open(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *arg
);

/**
 * @brief Console close entry point.
 *
 * This method closes a specific device supported by the
 * console device driver.
 *
 * @param[in] major is the device driver major number
 * @param[in] minor is the device driver minor number
 * @param[in] arg is the parameters to this call
 *
 * @retval RTEMS_SUCCESSFUL The device driver is successfully closed.
 */
rtems_device_driver console_close(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *arg
);

/**
 * @brief Console read entry point.
 *
 * This method reads from a specific device supported by the
 * console device driver.
 *
 * @param[in] major is the device driver major number
 * @param[in] minor is the device driver minor number
 * @param[in] arg is the parameters to this call
 *
 * @retval RTEMS_SUCCESSFUL The device is successfully read from.
 */
rtems_device_driver console_read(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *arg
);

/**
 * @brief Console write entry point.
 *
 * This method writes to a specific device supported by the
 * console device driver.
 *
 * @param[in] major is the device driver major number
 * @param[in] minor is the device driver minor number
 * @param[in] arg is the parameters to this call
 *
 * @retval RTEMS_SUCCESSFUL The device is successfully written.
 */
rtems_device_driver console_write(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *arg
);

/**
 * @brief Console IO control entry point.
 *
 * This method performs an IO Control operation on a
 * specific device supported by the console device driver.
 *
 * @param[in] major is the device driver major number
 * @param[in] minor is the device driver minor number
 * @param[in] arg is the parameters to this call
 * 
 * @retval RTEMS_SUCCESSFUL the device driver IO control operation is
 *         successfully performed.
 */
rtems_device_driver console_control(
  rtems_device_major_number  major,
  rtems_device_minor_number  minor,
  void                      *arg
);

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */