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<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
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<title>ChibiOS/RT: syscalls.c Source File</title>
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<td style="width: 80px;"><img alt="ChibiOS/RT Logo" src="logo_small.png"></td>
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<td><big><big>ChibiOS/RT</big></big><br><br>Architecture - Reference Manual - Guides</td>
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<td style="width: 80px;"></td>
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<li><a href="main.html"><span>Main Page</span></a></li>
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<li><a href="modules.html"><span>Modules</span></a></li>
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<li><a href="annotated.html"><span>Data Structures</span></a></li>
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<li class="current"><a href="files.html"><span>Files</span></a></li>
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<div class="header">
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<div class="headertitle">
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<h1>syscalls.c</h1> </div>
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</div>
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<div class="contents">
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
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<a name="l00002"></a>00002 <span class="comment"> ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.</span>
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<a name="l00003"></a>00003 <span class="comment"></span>
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<a name="l00004"></a>00004 <span class="comment"> This file is part of ChibiOS/RT.</span>
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<a name="l00005"></a>00005 <span class="comment"></span>
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<a name="l00006"></a>00006 <span class="comment"> ChibiOS/RT is free software; you can redistribute it and/or modify</span>
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<a name="l00007"></a>00007 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
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<a name="l00008"></a>00008 <span class="comment"> the Free Software Foundation; either version 3 of the License, or</span>
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<a name="l00009"></a>00009 <span class="comment"> (at your option) any later version.</span>
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<a name="l00010"></a>00010 <span class="comment"></span>
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<a name="l00011"></a>00011 <span class="comment"> ChibiOS/RT is distributed in the hope that it will be useful,</span>
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<a name="l00012"></a>00012 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
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<a name="l00013"></a>00013 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
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<a name="l00014"></a>00014 <span class="comment"> GNU General Public License for more details.</span>
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<a name="l00015"></a>00015 <span class="comment"></span>
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<a name="l00016"></a>00016 <span class="comment"> You should have received a copy of the GNU General Public License</span>
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<a name="l00017"></a>00017 <span class="comment"> along with this program. If not, see <http://www.gnu.org/licenses/>.</span>
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<a name="l00018"></a>00018 <span class="comment"></span>
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<a name="l00019"></a>00019 <span class="comment"> ---</span>
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<a name="l00020"></a>00020 <span class="comment"></span>
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<a name="l00021"></a>00021 <span class="comment"> A special exception to the GPL can be applied should you wish to distribute</span>
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<a name="l00022"></a>00022 <span class="comment"> a combined work that includes ChibiOS/RT, without being obliged to provide</span>
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<a name="l00023"></a>00023 <span class="comment"> the source code for any proprietary components. See the file exception.txt</span>
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<a name="l00024"></a>00024 <span class="comment"> for full details of how and when the exception can be applied.</span>
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<a name="l00025"></a>00025 <span class="comment">*/</span>
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<a name="l00026"></a>00026 <span class="comment">/*</span>
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<a name="l00027"></a>00027 <span class="comment">* **** This file incorporates work covered by the following copyright and ****</span>
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<a name="l00028"></a>00028 <span class="comment">* **** permission notice: ****</span>
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<a name="l00029"></a>00029 <span class="comment">*</span>
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<a name="l00030"></a>00030 <span class="comment">* Copyright (c) 2009 by Michael Fischer. All rights reserved.</span>
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<a name="l00031"></a>00031 <span class="comment">*</span>
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<a name="l00032"></a>00032 <span class="comment">* Redistribution and use in source and binary forms, with or without</span>
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<a name="l00033"></a>00033 <span class="comment">* modification, are permitted provided that the following conditions</span>
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<a name="l00034"></a>00034 <span class="comment">* are met:</span>
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<a name="l00035"></a>00035 <span class="comment">*</span>
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<a name="l00036"></a>00036 <span class="comment">* 1. Redistributions of source code must retain the above copyright</span>
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<a name="l00037"></a>00037 <span class="comment">* notice, this list of conditions and the following disclaimer.</span>
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<a name="l00038"></a>00038 <span class="comment">* 2. Redistributions in binary form must reproduce the above copyright</span>
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<a name="l00039"></a>00039 <span class="comment">* notice, this list of conditions and the following disclaimer in the</span>
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<a name="l00040"></a>00040 <span class="comment">* documentation and/or other materials provided with the distribution.</span>
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<a name="l00041"></a>00041 <span class="comment">* 3. Neither the name of the author nor the names of its contributors may</span>
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<a name="l00042"></a>00042 <span class="comment">* be used to endorse or promote products derived from this software</span>
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<a name="l00043"></a>00043 <span class="comment">* without specific prior written permission.</span>
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<a name="l00044"></a>00044 <span class="comment">*</span>
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<a name="l00045"></a>00045 <span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span>
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<a name="l00046"></a>00046 <span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span>
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<a name="l00047"></a>00047 <span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span>
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<a name="l00048"></a>00048 <span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL</span>
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<a name="l00049"></a>00049 <span class="comment">* THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span>
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<a name="l00050"></a>00050 <span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span>
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<a name="l00051"></a>00051 <span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS</span>
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<a name="l00052"></a>00052 <span class="comment">* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED</span>
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<a name="l00053"></a>00053 <span class="comment">* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,</span>
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<a name="l00054"></a>00054 <span class="comment">* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF</span>
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<a name="l00055"></a>00055 <span class="comment">* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF</span>
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<a name="l00056"></a>00056 <span class="comment">* SUCH DAMAGE.</span>
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<a name="l00057"></a>00057 <span class="comment">*</span>
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<a name="l00058"></a>00058 <span class="comment">****************************************************************************</span>
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<a name="l00059"></a>00059 <span class="comment">* History:</span>
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<a name="l00060"></a>00060 <span class="comment">*</span>
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<a name="l00061"></a>00061 <span class="comment">* 28.03.09 mifi First Version, based on the original syscall.c from</span>
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<a name="l00062"></a>00062 <span class="comment">* newlib version 1.17.0</span>
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<a name="l00063"></a>00063 <span class="comment">* 17.08.09 gdisirio Modified the file for use under ChibiOS/RT</span>
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<a name="l00064"></a>00064 <span class="comment">* 15.11.09 gdisirio Added read and write handling</span>
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<a name="l00065"></a>00065 <span class="comment">****************************************************************************/</span>
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<a name="l00066"></a>00066
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<a name="l00067"></a>00067 <span class="preprocessor">#include <stdlib.h></span>
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<a name="l00068"></a>00068 <span class="preprocessor">#include <errno.h></span>
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<a name="l00069"></a>00069 <span class="preprocessor">#include <string.h></span>
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<a name="l00070"></a>00070 <span class="preprocessor">#include <sys/stat.h></span>
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<a name="l00071"></a>00071 <span class="preprocessor">#include <sys/types.h></span>
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<a name="l00072"></a>00072
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<a name="l00073"></a>00073 <span class="preprocessor">#include "<a class="code" href="ch_8h.html" title="ChibiOS/RT main include file.">ch.h</a>"</span>
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<a name="l00074"></a>00074 <span class="preprocessor">#if defined(STDOUT_SD) || defined(STDIN_SD)</span>
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<a name="l00075"></a>00075 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="hal_8h.html" title="HAL subsystem header.">hal.h</a>"</span>
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<a name="l00076"></a>00076 <span class="preprocessor">#endif</span>
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<a name="l00077"></a>00077 <span class="preprocessor"></span>
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<a name="l00078"></a>00078 <span class="comment">/***************************************************************************/</span>
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<a name="l00079"></a>00079
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<a name="l00080"></a>00080 <span class="keywordtype">int</span> _read_r(<span class="keyword">struct</span> _reent *r, <span class="keywordtype">int</span> file, <span class="keywordtype">char</span> * ptr, <span class="keywordtype">int</span> len)
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<a name="l00081"></a>00081 {
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<a name="l00082"></a>00082 (void)r;
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<a name="l00083"></a>00083 <span class="preprocessor">#if defined(STDIN_SD)</span>
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<a name="l00084"></a>00084 <span class="preprocessor"></span> <span class="keywordflow">if</span> (!len || (file != 0)) {
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<a name="l00085"></a>00085 __errno_r(r) = EINVAL;
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<a name="l00086"></a>00086 <span class="keywordflow">return</span> -1;
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<a name="l00087"></a>00087 }
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<a name="l00088"></a>00088 len = <a class="code" href="group___s_e_r_i_a_l.html#gaea89c5fcd751ae186568961846dcb906" title="Direct blocking read from a SerialDriver.">sdRead</a>(&STDIN_SD, (<a class="code" href="group___s_t_m8___c_o_r_e.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)ptr, (<span class="keywordtype">size_t</span>)len);
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<a name="l00089"></a>00089 <span class="keywordflow">return</span> len;
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<a name="l00090"></a>00090 <span class="preprocessor">#else</span>
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<a name="l00091"></a>00091 <span class="preprocessor"></span> (void)file;
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<a name="l00092"></a>00092 (void)ptr;
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<a name="l00093"></a>00093 (void)len;
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<a name="l00094"></a>00094 __errno_r(r) = EINVAL;
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<a name="l00095"></a>00095 <span class="keywordflow">return</span> -1;
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<a name="l00096"></a>00096 <span class="preprocessor">#endif</span>
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<a name="l00097"></a>00097 <span class="preprocessor"></span>}
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<a name="l00098"></a>00098
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<a name="l00099"></a>00099 <span class="comment">/***************************************************************************/</span>
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<a name="l00100"></a>00100
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<a name="l00101"></a>00101 <span class="keywordtype">int</span> _lseek_r(<span class="keyword">struct</span> _reent *r, <span class="keywordtype">int</span> file, <span class="keywordtype">int</span> ptr, <span class="keywordtype">int</span> dir)
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<a name="l00102"></a>00102 {
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<a name="l00103"></a>00103 (void)r;
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<a name="l00104"></a>00104 (void)file;
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<a name="l00105"></a>00105 (void)ptr;
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<a name="l00106"></a>00106 (void)dir;
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<a name="l00107"></a>00107
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<a name="l00108"></a>00108 <span class="keywordflow">return</span> 0;
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<a name="l00109"></a>00109 }
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<a name="l00110"></a>00110
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<a name="l00111"></a>00111 <span class="comment">/***************************************************************************/</span>
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<a name="l00112"></a>00112
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<a name="l00113"></a>00113 <span class="keywordtype">int</span> _write_r(<span class="keyword">struct</span> _reent *r, <span class="keywordtype">int</span> file, <span class="keywordtype">char</span> * ptr, <span class="keywordtype">int</span> len)
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<a name="l00114"></a>00114 {
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<a name="l00115"></a>00115 (void)r;
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<a name="l00116"></a>00116 (void)file;
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<a name="l00117"></a>00117 (void)ptr;
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<a name="l00118"></a>00118 <span class="preprocessor">#if defined(STDOUT_SD)</span>
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<a name="l00119"></a>00119 <span class="preprocessor"></span> <span class="keywordflow">if</span> (file != 1) {
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<a name="l00120"></a>00120 __errno_r(r) = EINVAL;
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<a name="l00121"></a>00121 <span class="keywordflow">return</span> -1;
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<a name="l00122"></a>00122 }
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<a name="l00123"></a>00123 <a class="code" href="group___s_e_r_i_a_l.html#ga9b3aa2898a88d18fc148a60b9a5c3bc5" title="Direct blocking write to a SerialDriver.">sdWrite</a>(&STDOUT_SD, (<a class="code" href="group___s_t_m8___c_o_r_e.html#gaba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *)ptr, (<span class="keywordtype">size_t</span>)len);
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<a name="l00124"></a>00124 <span class="preprocessor">#endif</span>
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<a name="l00125"></a>00125 <span class="preprocessor"></span> <span class="keywordflow">return</span> len;
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<a name="l00126"></a>00126 }
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<a name="l00127"></a>00127
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<a name="l00128"></a>00128 <span class="comment">/***************************************************************************/</span>
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<a name="l00129"></a>00129
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<a name="l00130"></a>00130 <span class="keywordtype">int</span> _close_r(<span class="keyword">struct</span> _reent *r, <span class="keywordtype">int</span> file)
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<a name="l00131"></a>00131 {
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<a name="l00132"></a>00132 (void)r;
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<a name="l00133"></a>00133 (void)file;
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<a name="l00134"></a>00134
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<a name="l00135"></a>00135 <span class="keywordflow">return</span> 0;
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<a name="l00136"></a>00136 }
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<a name="l00137"></a>00137
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<a name="l00138"></a>00138 <span class="comment">/***************************************************************************/</span>
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<a name="l00139"></a>00139
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<a name="l00140"></a>00140 caddr_t _sbrk_r(<span class="keyword">struct</span> _reent *r, <span class="keywordtype">int</span> incr)
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<a name="l00141"></a>00141 {
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<a name="l00142"></a>00142 <span class="keywordtype">void</span> *p;
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<a name="l00143"></a>00143
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<a name="l00144"></a>00144 <a class="code" href="group__debug.html#ga6bb6c0f97caab3a66332c8bfbf7a3844" title="Function parameter check.">chDbgCheck</a>(incr > 0, <span class="stringliteral">"_sbrk_r"</span>);
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<a name="l00145"></a>00145
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<a name="l00146"></a>00146 (void)r;
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<a name="l00147"></a>00147 p = <a class="code" href="group__memcore.html#ga5394bda5b809ecf6b80b041b6b9ebaf4" title="Allocates a memory block.">chCoreAlloc</a>((<span class="keywordtype">size_t</span>)incr);
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<a name="l00148"></a>00148 <span class="keywordflow">if</span> (p == NULL) {
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<a name="l00149"></a>00149 __errno_r(r) = ENOMEM;
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<a name="l00150"></a>00150 <span class="keywordflow">return</span> (caddr_t)-1;
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<a name="l00151"></a>00151 }
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<a name="l00152"></a>00152 <span class="keywordflow">return</span> (caddr_t)p;
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<a name="l00153"></a>00153 }
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<a name="l00154"></a>00154
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<a name="l00155"></a>00155 <span class="comment">/***************************************************************************/</span>
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<a name="l00156"></a>00156
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<a name="l00157"></a>00157 <span class="keywordtype">int</span> _fstat_r(<span class="keyword">struct</span> _reent *r, <span class="keywordtype">int</span> file, <span class="keyword">struct</span> stat * st)
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<a name="l00158"></a>00158 {
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<a name="l00159"></a>00159 (void)r;
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<a name="l00160"></a>00160 (void)file;
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<a name="l00161"></a>00161
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<a name="l00162"></a>00162 memset(st, 0, <span class="keyword">sizeof</span>(*st));
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<a name="l00163"></a>00163 st->st_mode = S_IFCHR;
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<a name="l00164"></a>00164 <span class="keywordflow">return</span> 0;
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<a name="l00165"></a>00165 }
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<a name="l00166"></a>00166
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<a name="l00167"></a>00167 <span class="comment">/***************************************************************************/</span>
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<a name="l00168"></a>00168
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<a name="l00169"></a>00169 <span class="keywordtype">int</span> _isatty_r(<span class="keyword">struct</span> _reent *r, <span class="keywordtype">int</span> fd)
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<a name="l00170"></a>00170 {
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<a name="l00171"></a>00171 (void)r;
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<a name="l00172"></a>00172 (void)fd;
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<a name="l00173"></a>00173
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<a name="l00174"></a>00174 <span class="keywordflow">return</span> 1;
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<a name="l00175"></a>00175 }
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<a name="l00176"></a>00176
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<a name="l00177"></a>00177 <span class="comment">/*** EOF ***/</span>
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</pre></div></div>
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</div>
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<hr size="1"><address style="text-align: right;"><small>
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Generated on Sun Oct 24 2010 09:40:37 for ChibiOS/RT by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.7.1</small></address>
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