pc386/start/bspcmdline.c

0001 /*-------------------------------------------------------------------------+
0002 | This file contains the PC386 BSP startup package. It includes application,
0003 | board, and monitor specific initialization and configuration. The generic CPU
0004 | dependent initialization has been performed before this routine is invoked.
0005 +--------------------------------------------------------------------------+
0006 | (C) Copyright 2009 RTEMS Project
0007 |     Chris Johns (chrisj@rtems.org)
0008 +--------------------------------------------------------------------------+
0009 | Disclaimer:
0010 |
0011 | This file is provided "AS IS" without warranty of any kind, either
0012 | expressed or implied.
0013 +--------------------------------------------------------------------------+
0014 | This code is based on:
0015 |   common sense
0016 | With the following copyright notice:
0017 | **************************************************************************
0018 | *  COPYRIGHT (c) 1989-2008.
0019 | *  On-Line Applications Research Corporation (OAR).
0020 | *
0021 | *  The license and distribution terms for this file may be
0022 | *  found in the file LICENSE in this distribution or at
0023 | *  http://www.rtems.org/license/LICENSE.
0024 | **************************************************************************
0025 +--------------------------------------------------------------------------*/
0026
0027 #include <bsp.h>
0028 #include <rtems/pci.h>
0029 #include <libcpu/cpuModel.h>
0030
0031 /*
0032  *  External data
0033  */
0034 extern uint32_t _boot_multiboot_flags;
0035 extern uint32_t _boot_multiboot_memory[2];
0036 extern const char _boot_multiboot_cmdline[256];
0037
0038 /*-------------------------------------------------------------------------+
0039 |         Function: bsp_cmdline
0040 |      Description: Call when you want the command line.
0041 | Global Variables: The multiboot values copied from the loader.
0042 |        Arguments: None.
0043 |          Returns: The whole command line.
0044 +--------------------------------------------------------------------------*/
0045 const char* bsp_cmdline( void )
0046 {
0047   return _boot_multiboot_cmdline;
0048 }
0049
0050 /*-------------------------------------------------------------------------+
0051 |         Function: bsp_cmdline_arg
0052 |      Description: Call to search for an argument.
0053 | Global Variables: The multiboot values copied from the loader.
0054 |        Arguments: The option start.
0055 |          Returns: The option if found or nothing.
0056 +--------------------------------------------------------------------------*/
0057 const char* bsp_cmdline_arg( const char* arg )
0058 {
0059   return strstr (bsp_cmdline (), arg);
0060 }