From 561e4ff697c0f5072977c7c17d991bb19146c877 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Mon, 22 Nov 1999 14:03:16 +0000 Subject: Adding files missed by earlier merger of SH-2. --- c/src/lib/libbsp/sh/shared/console.c | 153 +++++++++++++++++++++++++++++++++++ 1 file changed, 153 insertions(+) create mode 100644 c/src/lib/libbsp/sh/shared/console.c diff --git a/c/src/lib/libbsp/sh/shared/console.c b/c/src/lib/libbsp/sh/shared/console.c new file mode 100644 index 0000000000..50564d150d --- /dev/null +++ b/c/src/lib/libbsp/sh/shared/console.c @@ -0,0 +1,153 @@ +/* + * /dev/console for Hitachi SH 703X + * + * The SH doesn't have a designated console device. Therefore we "alias" + * another device as /dev/console and revector all calls to /dev/console + * to this device. + * + * This approach is similar to installing a sym-link from one device to + * another device. If rtems once will support sym-links for devices files, + * this implementation could be dropped. + * + * Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de) + * + * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * + * COPYRIGHT (c) 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. + * + * $Id$ + */ + +#include +#include +#include +#include + +#ifndef BSP_CONSOLE_DEVNAME +#error Missing BSP_CONSOLE_DEVNAME +#endif + +static rtems_driver_name_t *low_level_device_info = NULL ; + +/* 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_device_driver status ; + + status = rtems_io_register_name( + "/dev/console", + major, + (rtems_device_minor_number) 0 + ); + + if (status != RTEMS_SUCCESSFUL) + rtems_fatal_error_occurred(status); + + status = rtems_io_lookup_name( BSP_CONSOLE_DEVNAME, + &low_level_device_info ); + if (status != RTEMS_SUCCESSFUL) + rtems_fatal_error_occurred(status); + + return RTEMS_SUCCESSFUL; +} + + +/* + * Open entry point + */ + +rtems_device_driver console_open( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return rtems_io_open( low_level_device_info->major, + low_level_device_info->minor, + arg ); +} + +/* + * Close entry point + */ + +rtems_device_driver console_close( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return rtems_io_close( low_level_device_info->major, + low_level_device_info->minor, + arg ); +} + +/* + * 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 +) +{ + return rtems_io_read( low_level_device_info->major, + low_level_device_info->minor, + arg ); +} + +/* + * 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 +) +{ + return rtems_io_write( low_level_device_info->major, + low_level_device_info->minor, + arg ); +} + +/* + * IO Control entry point + */ + +rtems_device_driver console_control( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return rtems_io_control( low_level_device_info->major, + low_level_device_info->minor, + arg ); +} -- cgit v1.2.3