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 | 285 |
1 files changed, 0 insertions, 285 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 bf669748f8..0000000000 --- a/c/src/lib/libbsp/i386/force386/console/console.c +++ /dev/null @@ -1,285 +0,0 @@ -/* - * This file contains the Force CPU386 console IO package. - * - * COPYRIGHT (c) 1989-1998. - * On-Line Applications Research Corporation (OAR). - * Copyright assigned to U.S. Government, 1994. - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#define F386_INIT - -#include <bsp.h> -#include <rtems/libio.h> - -#include <stdlib.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_status_code status; - - /* - * flush the console now and at exit. Just in case. - */ - - console_cleanup(); - - status = rtems_io_register_name( - "/dev/console", - major, - (rtems_device_minor_number) 0 - ); - - if (status != RTEMS_SUCCESSFUL) - rtems_fatal_error_occurred(status); - - atexit( console_cleanup ); - - return RTEMS_SUCCESSFUL; -} - - -/* 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 ); -} - -/* - * Open entry point - */ - -rtems_device_driver console_open( - rtems_device_major_number major, - rtems_device_minor_number minor, - void * arg -) -{ - return RTEMS_SUCCESSFUL; -} - -/* - * Close entry point - */ - -rtems_device_driver console_close( - rtems_device_major_number major, - rtems_device_minor_number minor, - void * arg -) -{ - return RTEMS_SUCCESSFUL; -} - -/* - * read bytes from the serial port. We only have stdin. - */ - -rtems_device_driver console_read( - rtems_device_major_number major, - rtems_device_minor_number minor, - void * arg -) -{ - rtems_libio_rw_args_t *rw_args; - char *buffer; - int maximum; - int count = 0; - - rw_args = (rtems_libio_rw_args_t *) arg; - - buffer = rw_args->buffer; - maximum = rw_args->count; - - for (count = 0; count < maximum; count++) { - buffer[ count ] = inbyte(); - if (buffer[ count ] == '\n' || buffer[ count ] == '\r') { - buffer[ count++ ] = '\n'; - break; - } - } - - rw_args->bytes_moved = count; - return (count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED; -} - -/* - * write bytes to the serial port. Stdout and stderr are the same. - */ - -rtems_device_driver console_write( - rtems_device_major_number major, - rtems_device_minor_number minor, - void * arg -) -{ - int count; - int maximum; - rtems_libio_rw_args_t *rw_args; - char *buffer; - - rw_args = (rtems_libio_rw_args_t *) arg; - - buffer = rw_args->buffer; - maximum = rw_args->count; - - for (count = 0; count < maximum; count++) { - if ( buffer[ count ] == '\n') { - outbyte('\r'); - } - outbyte( buffer[ count ] ); - } - - rw_args->bytes_moved = maximum; - return 0; -} - -/* - * IO Control entry point - */ - -rtems_device_driver console_control( - rtems_device_major_number major, - rtems_device_minor_number minor, - void * arg -) -{ - return RTEMS_SUCCESSFUL; -} - |