forked from Imagelibrary/rtems
Adding files missed by earlier merger of SH-2.
This commit is contained in:
153
c/src/lib/libbsp/sh/shared/console.c
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153
c/src/lib/libbsp/sh/shared/console.c
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/*
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* /dev/console for Hitachi SH 703X
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*
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* The SH doesn't have a designated console device. Therefore we "alias"
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* another device as /dev/console and revector all calls to /dev/console
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* to this device.
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*
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* This approach is similar to installing a sym-link from one device to
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* another device. If rtems once will support sym-links for devices files,
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* this implementation could be dropped.
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*
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* Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
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*
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* COPYRIGHT (c) 1997-1998, FAW Ulm, Germany
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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*
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* COPYRIGHT (c) 1998.
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* On-Line Applications Research Corporation (OAR).
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* Copyright assigned to U.S. Government, 1994.
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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.OARcorp.com/rtems/license.html.
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*
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* $Id$
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*/
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#include <bsp.h>
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#include <rtems.h>
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#include <rtems/libio.h>
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#include <iosupp.h>
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#ifndef BSP_CONSOLE_DEVNAME
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#error Missing BSP_CONSOLE_DEVNAME
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#endif
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static rtems_driver_name_t *low_level_device_info = NULL ;
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/* console_initialize
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*
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* This routine initializes the console IO driver.
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*
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* Input parameters: NONE
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*
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* Output parameters: NONE
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*
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* Return values:
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*/
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rtems_device_driver console_initialize(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *arg
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)
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{
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rtems_device_driver status ;
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status = rtems_io_register_name(
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"/dev/console",
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major,
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(rtems_device_minor_number) 0
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);
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if (status != RTEMS_SUCCESSFUL)
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rtems_fatal_error_occurred(status);
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status = rtems_io_lookup_name( BSP_CONSOLE_DEVNAME,
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&low_level_device_info );
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if (status != RTEMS_SUCCESSFUL)
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rtems_fatal_error_occurred(status);
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return RTEMS_SUCCESSFUL;
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}
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/*
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* Open entry point
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*/
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rtems_device_driver console_open(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void * arg
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)
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{
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return rtems_io_open( low_level_device_info->major,
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low_level_device_info->minor,
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arg );
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}
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/*
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* Close entry point
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*/
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rtems_device_driver console_close(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void * arg
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)
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{
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return rtems_io_close( low_level_device_info->major,
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low_level_device_info->minor,
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arg );
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}
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/*
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* read bytes from the serial port. We only have stdin.
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*/
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rtems_device_driver console_read(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void * arg
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)
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{
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return rtems_io_read( low_level_device_info->major,
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low_level_device_info->minor,
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arg );
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}
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/*
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* write bytes to the serial port. Stdout and stderr are the same.
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*/
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rtems_device_driver console_write(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void * arg
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)
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{
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return rtems_io_write( low_level_device_info->major,
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low_level_device_info->minor,
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arg );
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}
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/*
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* IO Control entry point
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*/
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rtems_device_driver console_control(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void * arg
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)
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{
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return rtems_io_control( low_level_device_info->major,
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low_level_device_info->minor,
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arg );
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}
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