diff options
Diffstat (limited to 'c/src/lib/libbsp/i386/force386/console/console.c')
| -rw-r--r-- | c/src/lib/libbsp/i386/force386/console/console.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/c/src/lib/libbsp/i386/force386/console/console.c b/c/src/lib/libbsp/i386/force386/console/console.c deleted file mode 100644 index f1f019c487..0000000000 --- a/c/src/lib/libbsp/i386/force386/console/console.c +++ /dev/null @@ -1,219 +0,0 @@ -/* - * This file contains the Force CPU386 console IO package. - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#define F386_INIT - -#include <stdlib.h> - -#include <rtems.h> -#include "console.h" -#include "bsp.h" - -/* console_cleanup - * - * This routine is called at exit to clean up the console hardware. - * - * Input parameters: NONE - * - * Output parameters: NONE - * - * Return values: - */ - -void console_cleanup( void ) -{ - register rtems_unsigned8 ignored; - /* - * FORCE technical support mentioned that it may be necessary to - * read the DUSCC RX_BUFFER port four times to remove all junk. - * This code is a little more paranoid. - */ - - inport_byte( RX_BUFFER, ignored ); - inport_byte( RX_BUFFER, ignored ); - inport_byte( RX_BUFFER, ignored ); - inport_byte( RX_BUFFER, ignored ); - inport_byte( RX_BUFFER, ignored ); -} - -/* console_initialize - * - * This routine initializes the console IO driver. - * - * Input parameters: NONE - * - * Output parameters: NONE - * - * Return values: - */ - -rtems_device_driver console_initialize( - rtems_device_major_number major, - rtems_device_minor_number minor, - void *arg, - rtems_id self, - rtems_unsigned32 *status -) -{ - /* - * flush the console now and at exit. Just in case. - */ - - console_cleanup(); - - atexit( console_cleanup ); -} - - -/* is_character_ready - * - * This routine returns TRUE if a character is available. - * - * Input parameters: NONE - * - * Output parameters: NONE - * - * Return values: - */ - -rtems_boolean is_character_ready( - char *ch -) -{ - register rtems_unsigned8 status; - - inport_byte( RX_STATUS, status ); - - if ( Is_rx_ready( status ) ) { - inport_byte( RX_BUFFER, status ); - *ch = status; - return TRUE; - } - return FALSE; -} - -/* inbyte - * - * This routine reads a character from the UART. - * - * Input parameters: NONE - * - * Output parameters: NONE - * - * Return values: - * character read from UART - */ - -char inbyte( void ) -{ - register rtems_unsigned8 status; - char ch; - - do { - inport_byte( RX_STATUS, status ); - } while ( !Is_rx_ready( status ) ); - -#if ( PORTB == 1 ) - /* - * Force example code resets the Channel B Receiver here. - * It appears to cause XON's to be lost. - */ - - /* outport_byte( RX_STATUS, 0x10 ); */ -#endif - - inport_byte( RX_BUFFER, ch ); - - return ch; -} - -/* outbyte - * - * This routine transmits a character out the port. It supports - * XON/XOFF flow control. - * - * Input parameters: - * ch - character to be transmitted - * - * Output parameters: NONE - */ - -void outbyte( - char ch -) -{ - rtems_unsigned8 status; - - do { - inport_byte( TX_STATUS, status ); - } while ( !Is_tx_ready( status ) ); - -#if 0 - while ( is_character_ready( &status ) == TRUE ) { /* must be an XOFF */ - if ( status == XOFF ) - do { - while ( is_character_ready( &status ) == FALSE ) ; - } while ( status != XON ); - } -#endif - - outport_byte( TX_BUFFER, ch ); -} - -/* - * __read -- read bytes from the serial port. Ignore fd, since - * we only have stdin. - */ - -int __read( - int fd, - char *buf, - int nbytes -) -{ - int i = 0; - - for (i = 0; i < nbytes; i++) { - *(buf + i) = inbyte(); - if ((*(buf + i) == '\n') || (*(buf + i) == '\r')) { - (*(buf + i++)) = '\n'; - (*(buf + i)) = 0; - break; - } - } - return (i); -} - -/* - * __write -- write bytes to the serial port. Ignore fd, since - * stdout and stderr are the same. Since we have no filesystem, - * open will only return an error. - */ - -int __write( - int fd, - char *buf, - int nbytes -) -{ - int i; - - for (i = 0; i < nbytes; i++) { - if (*(buf + i) == '\n') { - outbyte ('\r'); - } - outbyte (*(buf + i)); - } - return (nbytes); -} |