/*
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/*
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* This file contains the template for a console IO package.
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* This file contains the template for a console IO package.
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*
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*
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* COPYRIGHT (c) 1989-1999.
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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* On-Line Applications Research Corporation (OAR).
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*
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*
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* The license and distribution terms for this file may be
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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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* 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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* http://www.OARcorp.com/rtems/license.html.
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*
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*
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* $Id: console.c,v 1.2 2001-09-27 12:00:26 chris Exp $
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* $Id: console.c,v 1.2 2001-09-27 12:00:26 chris Exp $
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*/
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*/
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#define NO_BSP_INIT
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#define NO_BSP_INIT
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#include <bsp.h>
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#include <bsp.h>
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#include <rtems/libio.h>
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#include <rtems/libio.h>
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/* console_initialize
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/* console_initialize
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*
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*
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* This routine initializes the console IO driver.
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* This routine initializes the console IO driver.
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*
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*
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* Input parameters: NONE
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* Input parameters: NONE
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*
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*
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* Output parameters: NONE
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* Output parameters: NONE
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*
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*
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* Return values:
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* Return values:
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*/
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*/
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rtems_device_driver console_initialize(
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rtems_device_driver console_initialize(
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rtems_device_major_number major,
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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rtems_device_minor_number minor,
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void *arg
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void *arg
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)
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)
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{
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{
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rtems_status_code status;
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rtems_status_code status;
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status = rtems_io_register_name(
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status = rtems_io_register_name(
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"/dev/console",
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"/dev/console",
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major,
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major,
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(rtems_device_minor_number) 0
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(rtems_device_minor_number) 0
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);
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);
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if (status != RTEMS_SUCCESSFUL)
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if (status != RTEMS_SUCCESSFUL)
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rtems_fatal_error_occurred(status);
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rtems_fatal_error_occurred(status);
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return RTEMS_SUCCESSFUL;
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return RTEMS_SUCCESSFUL;
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}
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}
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/* is_character_ready
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/* is_character_ready
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*
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*
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* This routine returns TRUE if a character is available.
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* This routine returns TRUE if a character is available.
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*
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*
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* Input parameters: NONE
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* Input parameters: NONE
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*
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*
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* Output parameters: NONE
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* Output parameters: NONE
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*
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*
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* Return values:
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* Return values:
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*/
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*/
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rtems_boolean is_character_ready(
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rtems_boolean is_character_ready(
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char *ch
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char *ch
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)
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)
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{
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{
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*ch = '\0'; /* return NULL for no particular reason */
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*ch = '\0'; /* return NULL for no particular reason */
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return(TRUE);
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return(TRUE);
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}
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}
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/* inbyte
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/* inbyte
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*
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*
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* This routine reads a character from the SOURCE.
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* This routine reads a character from the SOURCE.
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*
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*
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* Input parameters: NONE
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* Input parameters: NONE
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*
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*
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* Output parameters: NONE
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* Output parameters: NONE
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*
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*
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* Return values:
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* Return values:
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* character read from SOURCE
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* character read from SOURCE
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*/
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*/
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char inbyte( void )
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char inbyte( void )
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{
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{
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/*
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/*
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* If polling, wait until a character is available.
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* If polling, wait until a character is available.
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*/
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*/
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return '\0';
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return '\0';
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}
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}
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/* outbyte
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/* outbyte
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*
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*
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* This routine transmits a character out the SOURCE. It may support
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* This routine transmits a character out the SOURCE. It may support
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* XON/XOFF flow control.
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* XON/XOFF flow control.
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*
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*
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* Input parameters:
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* Input parameters:
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* ch - character to be transmitted
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* ch - character to be transmitted
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*
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*
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* Output parameters: NONE
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* Output parameters: NONE
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*/
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*/
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void outbyte(
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void outbyte(
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char ch
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char ch
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)
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)
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{
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{
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/*
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/*
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* If polling, wait for the transmitter to be ready.
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* If polling, wait for the transmitter to be ready.
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* Check for flow control requests and process.
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* Check for flow control requests and process.
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* Then output the character.
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* Then output the character.
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*/
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*/
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/*
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/*
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* Carriage Return/New line translation.
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* Carriage Return/New line translation.
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*/
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*/
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if ( ch == '\n' )
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if ( ch == '\n' )
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outbyte( '\r' );
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outbyte( '\r' );
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}
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}
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/*
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/*
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* Open entry point
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* Open entry point
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*/
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*/
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rtems_device_driver console_open(
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rtems_device_driver console_open(
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rtems_device_major_number major,
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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rtems_device_minor_number minor,
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void * arg
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void * arg
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)
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)
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{
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{
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return RTEMS_SUCCESSFUL;
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return RTEMS_SUCCESSFUL;
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}
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}
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/*
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/*
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* Close entry point
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* Close entry point
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*/
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*/
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rtems_device_driver console_close(
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rtems_device_driver console_close(
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rtems_device_major_number major,
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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rtems_device_minor_number minor,
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void * arg
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void * arg
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)
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)
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{
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{
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return RTEMS_SUCCESSFUL;
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return RTEMS_SUCCESSFUL;
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}
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}
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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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* read bytes from the serial port. We only have stdin.
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*/
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*/
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rtems_device_driver console_read(
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rtems_device_driver console_read(
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rtems_device_major_number major,
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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rtems_device_minor_number minor,
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void * arg
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void * arg
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)
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)
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{
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{
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rtems_libio_rw_args_t *rw_args;
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rtems_libio_rw_args_t *rw_args;
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char *buffer;
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char *buffer;
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int maximum;
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int maximum;
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int count = 0;
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int count = 0;
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rw_args = (rtems_libio_rw_args_t *) arg;
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rw_args = (rtems_libio_rw_args_t *) arg;
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buffer = rw_args->buffer;
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buffer = rw_args->buffer;
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maximum = rw_args->count;
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maximum = rw_args->count;
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for (count = 0; count < maximum; count++) {
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for (count = 0; count < maximum; count++) {
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buffer[ count ] = inbyte();
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buffer[ count ] = inbyte();
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if (buffer[ count ] == '\n' || buffer[ count ] == '\r') {
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if (buffer[ count ] == '\n' || buffer[ count ] == '\r') {
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buffer[ count++ ] = '\n';
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buffer[ count++ ] = '\n';
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break;
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break;
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}
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}
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}
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}
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rw_args->bytes_moved = count;
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rw_args->bytes_moved = count;
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return (count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED;
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return (count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED;
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}
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}
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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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* write bytes to the serial port. Stdout and stderr are the same.
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*/
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*/
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rtems_device_driver console_write(
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rtems_device_driver console_write(
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rtems_device_major_number major,
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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rtems_device_minor_number minor,
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void * arg
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void * arg
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)
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)
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{
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{
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int count;
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int count;
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int maximum;
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int maximum;
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rtems_libio_rw_args_t *rw_args;
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rtems_libio_rw_args_t *rw_args;
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char *buffer;
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char *buffer;
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rw_args = (rtems_libio_rw_args_t *) arg;
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rw_args = (rtems_libio_rw_args_t *) arg;
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buffer = rw_args->buffer;
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buffer = rw_args->buffer;
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maximum = rw_args->count;
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maximum = rw_args->count;
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for (count = 0; count < maximum; count++) {
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for (count = 0; count < maximum; count++) {
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if ( buffer[ count ] == '\n') {
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if ( buffer[ count ] == '\n') {
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outbyte('\r');
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outbyte('\r');
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}
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}
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outbyte( buffer[ count ] );
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outbyte( buffer[ count ] );
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}
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}
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rw_args->bytes_moved = maximum;
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rw_args->bytes_moved = maximum;
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return 0;
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return 0;
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}
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}
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/*
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/*
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* IO Control entry point
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* IO Control entry point
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*/
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*/
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rtems_device_driver console_control(
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rtems_device_driver console_control(
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rtems_device_major_number major,
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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rtems_device_minor_number minor,
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void * arg
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void * arg
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)
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)
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{
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{
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return RTEMS_SUCCESSFUL;
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return RTEMS_SUCCESSFUL;
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}
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}
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