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  23 <h1>usbwrap.cc</h1><a href="usbwrap_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">///</span>
  24 <a name="l00002"></a>00002 <span class="comment"></span><span class="comment">/// \file       usbwrap.cc</span>
  25 <a name="l00003"></a>00003 <span class="comment"></span><span class="comment">///             USB API wrapper</span>
  26 <a name="l00004"></a>00004 <span class="comment"></span><span class="comment">///</span>
  27 <a name="l00005"></a>00005 <span class="comment"></span>
  28 <a name="l00006"></a>00006 <span class="comment">/*</span>
  29 <a name="l00007"></a>00007 <span class="comment">    Copyright (C) 2005-2009, Chris Frey</span>
  30 <a name="l00008"></a>00008 <span class="comment"></span>
  31 <a name="l00009"></a>00009 <span class="comment">    This program is free software; you can redistribute it and/or modify</span>
  32 <a name="l00010"></a>00010 <span class="comment">    it under the terms of the GNU General Public License as published by</span>
  33 <a name="l00011"></a>00011 <span class="comment">    the Free Software Foundation; either version 2 of the License, or</span>
  34 <a name="l00012"></a>00012 <span class="comment">    (at your option) any later version.</span>
  35 <a name="l00013"></a>00013 <span class="comment"></span>
  36 <a name="l00014"></a>00014 <span class="comment">    This program is distributed in the hope that it will be useful,</span>
  37 <a name="l00015"></a>00015 <span class="comment">    but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
  38 <a name="l00016"></a>00016 <span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.</span>
  39 <a name="l00017"></a>00017 <span class="comment"></span>
  40 <a name="l00018"></a>00018 <span class="comment">    See the GNU General Public License in the COPYING file at the</span>
  41 <a name="l00019"></a>00019 <span class="comment">    root directory of this project for more details.</span>
  42 <a name="l00020"></a>00020 <span class="comment">*/</span>
  43 <a name="l00021"></a>00021
  44 <a name="l00022"></a>00022
  45 <a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="usbwrap_8h.html" title="USB API wrapper.">usbwrap.h</a>"</span>
  46 <a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="data_8h.html" title="Class to deal with pre-saved data files.">data.h</a>"</span>
  47 <a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="error_8h.html" title="Common exception classes for the Barry library.">error.h</a>"</span>
  48 <a name="l00026"></a>00026 <span class="preprocessor">#include "debug.h"</span>
  49 <a name="l00027"></a>00027
  50 <a name="l00028"></a>00028 <span class="preprocessor">#include &lt;iomanip&gt;</span>
  51 <a name="l00029"></a>00029 <span class="preprocessor">#include &lt;sstream&gt;</span>
  52 <a name="l00030"></a>00030 <span class="preprocessor">#include &lt;errno.h&gt;</span>
  53 <a name="l00031"></a>00031 <span class="preprocessor">#include &lt;string.h&gt;</span>
  54 <a name="l00032"></a>00032
  55 <a name="l00033"></a>00033 <span class="preprocessor">#ifndef __DEBUG_MODE__</span>
  56 <a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#define __DEBUG_MODE__</span>
  57 <a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
  58 <a name="l00036"></a>00036 <span class="preprocessor"></span><span class="preprocessor">#include "debug.h"</span>
  59 <a name="l00037"></a>00037
  60 <a name="l00038"></a>00038 <span class="keyword">namespace </span>Usb {
  61 <a name="l00039"></a>00039 <span class="comment"></span>
  62 <a name="l00040"></a>00040 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
  63 <a name="l00041"></a>00041 <span class="comment"></span><span class="comment">// Usb::Error exception class</span>
  64 <a name="l00042"></a>00042
  65 <a name="l00043"></a>00043 <span class="keyword">static</span> std::string GetErrorString(<span class="keywordtype">int</span> libusb_errcode, <span class="keyword">const</span> std::string &amp;str)
  66 <a name="l00044"></a>00044 {
  67 <a name="l00045"></a>00045         std::ostringstream oss;
  68 <a name="l00046"></a>00046         oss &lt;&lt; <span class="stringliteral">"("</span>;
  69 <a name="l00047"></a>00047
  70 <a name="l00048"></a>00048         <span class="keywordflow">if</span>( libusb_errcode ) {
  71 <a name="l00049"></a>00049                 oss &lt;&lt; std::setbase(10) &lt;&lt; libusb_errcode &lt;&lt; <span class="stringliteral">", "</span>;
  72 <a name="l00050"></a>00050         }
  73 <a name="l00051"></a>00051
  74 <a name="l00052"></a>00052 <span class="comment">//      oss &lt;&lt; strerror(-libusb_errno) &lt;&lt; "): "</span>
  75 <a name="l00053"></a>00053         oss &lt;&lt; usb_strerror() &lt;&lt; <span class="stringliteral">"): "</span>;
  76 <a name="l00054"></a>00054         oss &lt;&lt; str;
  77 <a name="l00055"></a>00055         <span class="keywordflow">return</span> oss.str();
  78 <a name="l00056"></a>00056 }
  79 <a name="l00057"></a>00057
  80 <a name="l00058"></a>00058 Error::Error(<span class="keyword">const</span> std::string &amp;str)
  81 <a name="l00059"></a>00059         : Barry::Error(GetErrorString(0, str))
  82 <a name="l00060"></a>00060         , m_libusb_errcode(0)
  83 <a name="l00061"></a>00061 {
  84 <a name="l00062"></a>00062 }
  85 <a name="l00063"></a>00063
  86 <a name="l00064"></a>00064 Error::Error(<span class="keywordtype">int</span> libusb_errcode, <span class="keyword">const</span> std::string &amp;str)
  87 <a name="l00065"></a>00065         : Barry::Error(GetErrorString(libusb_errcode, str))
  88 <a name="l00066"></a>00066         , m_libusb_errcode(libusb_errcode)
  89 <a name="l00067"></a>00067 {
  90 <a name="l00068"></a>00068 }
  91 <a name="l00069"></a>00069
  92 <a name="l00070"></a>00070 <span class="comment"></span>
  93 <a name="l00071"></a>00071 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
  94 <a name="l00072"></a>00072 <span class="comment"></span><span class="comment">// Match</span>
  95 <a name="l00073"></a>00073
  96 <a name="l00074"></a>00074 Match::Match(<span class="keywordtype">int</span> vendor, <span class="keywordtype">int</span> product,
  97 <a name="l00075"></a>00075                 <span class="keyword">const</span> <span class="keywordtype">char</span> *busname, <span class="keyword">const</span> <span class="keywordtype">char</span> *devname)
  98 <a name="l00076"></a>00076         : m_busses(0)
  99 <a name="l00077"></a>00077         , m_dev(0)
 100 <a name="l00078"></a>00078         , m_vendor(vendor)
 101 <a name="l00079"></a>00079         , m_product(product)
 102 <a name="l00080"></a>00080         , m_busname(busname)
 103 <a name="l00081"></a>00081         , m_devname(devname)
 104 <a name="l00082"></a>00082 {
 105 <a name="l00083"></a>00083         usb_find_busses();
 106 <a name="l00084"></a>00084         usb_find_devices();
 107 <a name="l00085"></a>00085         m_busses = usb_get_busses();
 108 <a name="l00086"></a>00086 }
 109 <a name="l00087"></a>00087
 110 <a name="l00088"></a>00088 Match::~Match()
 111 <a name="l00089"></a>00089 {
 112 <a name="l00090"></a>00090 }
 113 <a name="l00091"></a>00091
 114 <a name="l00092"></a>00092 <span class="keywordtype">bool</span> Match::ToNum(<span class="keyword">const</span> <span class="keywordtype">char</span> *str, <span class="keywordtype">long</span> &amp;num)
 115 <a name="l00093"></a>00093 {
 116 <a name="l00094"></a>00094         <span class="keywordtype">char</span> *end = 0;
 117 <a name="l00095"></a>00095         num = strtol(str, &amp;end, 10);
 118 <a name="l00096"></a>00096         <span class="keywordflow">return</span>  num &gt;= 0 &amp;&amp;                     <span class="comment">// no negative numbers</span>
 119 <a name="l00097"></a>00097                 num != LONG_MIN &amp;&amp; num != LONG_MAX &amp;&amp;   <span class="comment">// no overflow</span>
 120 <a name="l00098"></a>00098                 str != end &amp;&amp; *end == <span class="charliteral">'\0'</span>;     <span class="comment">// whole string valid</span>
 121 <a name="l00099"></a>00099 }
 122 <a name="l00100"></a>00100
 123 <a name="l00101"></a>00101 <span class="comment">//</span>
 124 <a name="l00102"></a>00102 <span class="comment">// Linux treats bus and device path names as numbers, sometimes left</span>
 125 <a name="l00103"></a>00103 <span class="comment">// padded with zeros.  Other platforms, such as Windows, use strings,</span>
 126 <a name="l00104"></a>00104 <span class="comment">// such as "bus-1" or similar.</span>
 127 <a name="l00105"></a>00105 <span class="comment">//</span>
 128 <a name="l00106"></a>00106 <span class="comment">// Here we try to convert each string to a number, and if successful,</span>
 129 <a name="l00107"></a>00107 <span class="comment">// compare them.  If unable to convert, then compare as strings.</span>
 130 <a name="l00108"></a>00108 <span class="comment">// This way, "3" == "003" and "bus-foobar" == "bus-foobar".</span>
 131 <a name="l00109"></a>00109 <span class="comment">//</span>
 132 <a name="l00110"></a>00110 <span class="keywordtype">bool</span> Match::NameCompare(<span class="keyword">const</span> <span class="keywordtype">char</span> *n1, <span class="keyword">const</span> <span class="keywordtype">char</span> *n2)
 133 <a name="l00111"></a>00111 {
 134 <a name="l00112"></a>00112         <span class="keywordtype">long</span> l1, l2;
 135 <a name="l00113"></a>00113         <span class="keywordflow">if</span>( ToNum(n1, l1) &amp;&amp; ToNum(n2, l2) ) {
 136 <a name="l00114"></a>00114                 <span class="keywordflow">return</span> l1 == l2;
 137 <a name="l00115"></a>00115         }
 138 <a name="l00116"></a>00116         <span class="keywordflow">else</span> {
 139 <a name="l00117"></a>00117                 <span class="keywordflow">return</span> strcmp(n1, n2) == 0;
 140 <a name="l00118"></a>00118         }
 141 <a name="l00119"></a>00119 }
 142 <a name="l00120"></a>00120
 143 <a name="l00121"></a>00121 <span class="keywordtype">bool</span> Match::next_device(<a class="code" href="namespaceUsb.html#6d445b3f5ddb92da82207f62e7d9494f" title="Typedefs used by the wrapper class, in the hope to make it easier to switch from...">Usb::DeviceIDType</a> *devid)
 144 <a name="l00122"></a>00122 {
 145 <a name="l00123"></a>00123         <span class="keywordflow">for</span>( ; m_busses; m_busses = m_busses-&gt;next ) {
 146 <a name="l00124"></a>00124
 147 <a name="l00125"></a>00125                 <span class="comment">// only search on given bus</span>
 148 <a name="l00126"></a>00126                 <span class="keywordflow">if</span>( m_busname &amp;&amp; !NameCompare(m_busname, m_busses-&gt;dirname) )
 149 <a name="l00127"></a>00127                         <span class="keywordflow">continue</span>;
 150 <a name="l00128"></a>00128
 151 <a name="l00129"></a>00129                 <span class="keywordflow">if</span>( !m_dev )
 152 <a name="l00130"></a>00130                         m_dev = m_busses-&gt;devices;
 153 <a name="l00131"></a>00131
 154 <a name="l00132"></a>00132                 <span class="keywordflow">for</span>( ; m_dev; m_dev = m_dev-&gt;next ) {
 155 <a name="l00133"></a>00133
 156 <a name="l00134"></a>00134                         <span class="comment">// search for specific device</span>
 157 <a name="l00135"></a>00135                         <span class="keywordflow">if</span>( m_devname &amp;&amp; !NameCompare(m_devname, m_dev-&gt;filename) )
 158 <a name="l00136"></a>00136                                 <span class="keywordflow">continue</span>;
 159 <a name="l00137"></a>00137
 160 <a name="l00138"></a>00138                         <span class="comment">// is there a match?</span>
 161 <a name="l00139"></a>00139                         <span class="keywordflow">if</span>( m_dev-&gt;descriptor.idVendor == m_vendor &amp;&amp;
 162 <a name="l00140"></a>00140                             m_dev-&gt;descriptor.idProduct == m_product ) {
 163 <a name="l00141"></a>00141                                 <span class="comment">// found!</span>
 164 <a name="l00142"></a>00142                                 *devid = m_dev;
 165 <a name="l00143"></a>00143
 166 <a name="l00144"></a>00144                                 <span class="comment">// advance for next time</span>
 167 <a name="l00145"></a>00145                                 m_dev = m_dev-&gt;next;
 168 <a name="l00146"></a>00146                                 <span class="keywordflow">if</span>( !m_dev )
 169 <a name="l00147"></a>00147                                         m_busses = m_busses-&gt;next;
 170 <a name="l00148"></a>00148
 171 <a name="l00149"></a>00149                                 <span class="comment">// done</span>
 172 <a name="l00150"></a>00150                                 <span class="keywordflow">return</span> <span class="keyword">true</span>;
 173 <a name="l00151"></a>00151                         }
 174 <a name="l00152"></a>00152                 }
 175 <a name="l00153"></a>00153         }
 176 <a name="l00154"></a>00154         <span class="keywordflow">return</span> <span class="keyword">false</span>;
 177 <a name="l00155"></a>00155 }
 178 <a name="l00156"></a>00156
 179 <a name="l00157"></a>00157 <span class="comment"></span>
 180 <a name="l00158"></a>00158 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
 181 <a name="l00159"></a>00159 <span class="comment"></span><span class="comment">// Device</span>
 182 <a name="l00160"></a>00160
 183 <a name="l00161"></a>00161 Device::Device(<a class="code" href="namespaceUsb.html#6d445b3f5ddb92da82207f62e7d9494f" title="Typedefs used by the wrapper class, in the hope to make it easier to switch from...">Usb::DeviceIDType</a> <span class="keywordtype">id</span>, <span class="keywordtype">int</span> timeout)
 184 <a name="l00162"></a>00162         : m_id(id),
 185 <a name="l00163"></a>00163         m_timeout(timeout)
 186 <a name="l00164"></a>00164 {
 187 <a name="l00165"></a>00165         dout(<span class="stringliteral">"usb_open("</span> &lt;&lt; std::dec &lt;&lt; <span class="keywordtype">id</span> &lt;&lt; <span class="stringliteral">")"</span>);
 188 <a name="l00166"></a>00166         m_handle = usb_open(<span class="keywordtype">id</span>);
 189 <a name="l00167"></a>00167         <span class="keywordflow">if</span>( !m_handle )
 190 <a name="l00168"></a>00168                 <span class="keywordflow">throw</span> Error(<span class="stringliteral">"open failed"</span>);
 191 <a name="l00169"></a>00169 }
 192 <a name="l00170"></a>00170
 193 <a name="l00171"></a>00171 Device::~Device()
 194 <a name="l00172"></a>00172 {
 195 <a name="l00173"></a>00173         dout(<span class="stringliteral">"usb_close("</span> &lt;&lt; std::dec &lt;&lt; m_handle &lt;&lt; <span class="stringliteral">")"</span>);
 196 <a name="l00174"></a>00174         usb_close(m_handle);
 197 <a name="l00175"></a>00175 }
 198 <a name="l00176"></a>00176
 199 <a name="l00177"></a>00177 <span class="keywordtype">bool</span> Device::SetConfiguration(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> cfg)
 200 <a name="l00178"></a>00178 {
 201 <a name="l00179"></a>00179         dout(<span class="stringliteral">"usb_set_configuration("</span> &lt;&lt; std::dec &lt;&lt; m_handle &lt;&lt; <span class="stringliteral">","</span> &lt;&lt; std::dec &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) cfg &lt;&lt; <span class="stringliteral">")"</span>);
 202 <a name="l00180"></a>00180         <span class="keywordtype">int</span> ret = usb_set_configuration(m_handle, cfg);
 203 <a name="l00181"></a>00181         m_lasterror = ret;
 204 <a name="l00182"></a>00182         <span class="keywordflow">return</span> ret &gt;= 0;
 205 <a name="l00183"></a>00183 }
 206 <a name="l00184"></a>00184
 207 <a name="l00185"></a>00185 <span class="keywordtype">bool</span> Device::ClearHalt(<span class="keywordtype">int</span> ep)
 208 <a name="l00186"></a>00186 {
 209 <a name="l00187"></a>00187         dout(<span class="stringliteral">"usb_clear_halt("</span> &lt;&lt; std::dec &lt;&lt; m_handle &lt;&lt; <span class="stringliteral">","</span> &lt;&lt; std::dec &lt;&lt; ep &lt;&lt; <span class="stringliteral">")"</span>);
 210 <a name="l00188"></a>00188         <span class="keywordtype">int</span> ret = usb_clear_halt(m_handle, ep);
 211 <a name="l00189"></a>00189         m_lasterror = ret;
 212 <a name="l00190"></a>00190         <span class="keywordflow">return</span> ret &gt;= 0;
 213 <a name="l00191"></a>00191 }
 214 <a name="l00192"></a>00192
 215 <a name="l00193"></a>00193 <span class="keywordtype">bool</span> Device::Reset()
 216 <a name="l00194"></a>00194 {
 217 <a name="l00195"></a>00195         dout(<span class="stringliteral">"usb_reset("</span> &lt;&lt; std::dec &lt;&lt; m_handle &lt;&lt; <span class="stringliteral">")"</span>);
 218 <a name="l00196"></a>00196         <span class="keywordtype">int</span> ret = usb_reset(m_handle);
 219 <a name="l00197"></a>00197         m_lasterror = ret;
 220 <a name="l00198"></a>00198         <span class="keywordflow">return</span> ret == 0;
 221 <a name="l00199"></a>00199 }
 222 <a name="l00200"></a>00200
 223 <a name="l00201"></a>00201 <span class="keywordtype">bool</span> Device::BulkRead(<span class="keywordtype">int</span> ep, Barry::Data &amp;data, <span class="keywordtype">int</span> timeout)
 224 <a name="l00202"></a>00202 {
 225 <a name="l00203"></a>00203         <span class="keywordtype">int</span> ret;
 226 <a name="l00204"></a>00204         <span class="keywordflow">do</span> {
 227 <a name="l00205"></a>00205                 data.QuickZap();
 228 <a name="l00206"></a>00206                 ret = usb_bulk_read(m_handle, ep,
 229 <a name="l00207"></a>00207                         (<span class="keywordtype">char</span>*) data.GetBuffer(), data.GetBufSize(),
 230 <a name="l00208"></a>00208                         timeout == -1 ? m_timeout : timeout);
 231 <a name="l00209"></a>00209                 <span class="keywordflow">if</span>( ret &lt; 0 &amp;&amp; ret != -EINTR &amp;&amp; ret != -EAGAIN ) {
 232 <a name="l00210"></a>00210                         m_lasterror = ret;
 233 <a name="l00211"></a>00211                         <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
 234 <a name="l00212"></a>00212                                 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_bulk_read"</span>);
 235 <a name="l00213"></a>00213                         <span class="keywordflow">else</span>
 236 <a name="l00214"></a>00214                                 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_bulk_read"</span>);
 237 <a name="l00215"></a>00215                 }
 238 <a name="l00216"></a>00216                 data.ReleaseBuffer(ret);
 239 <a name="l00217"></a>00217         } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
 240 <a name="l00218"></a>00218
 241 <a name="l00219"></a>00219         <span class="keywordflow">return</span> ret &gt;= 0;
 242 <a name="l00220"></a>00220 }
 243 <a name="l00221"></a>00221
 244 <a name="l00222"></a>00222 <span class="keywordtype">bool</span> Device::BulkWrite(<span class="keywordtype">int</span> ep, <span class="keyword">const</span> Barry::Data &amp;data, <span class="keywordtype">int</span> timeout)
 245 <a name="l00223"></a>00223 {
 246 <a name="l00224"></a>00224         ddout(<span class="stringliteral">"BulkWrite to endpoint "</span> &lt;&lt; std::dec &lt;&lt; ep &lt;&lt; <span class="stringliteral">":\n"</span> &lt;&lt; data);
 247 <a name="l00225"></a>00225         <span class="keywordtype">int</span> ret;
 248 <a name="l00226"></a>00226         <span class="keywordflow">do</span> {
 249 <a name="l00227"></a>00227                 ret = usb_bulk_write(m_handle, ep,
 250 <a name="l00228"></a>00228                         (<span class="keywordtype">char</span>*) data.GetData(), data.GetSize(),
 251 <a name="l00229"></a>00229                         timeout == -1 ? m_timeout : timeout);
 252 <a name="l00230"></a>00230                 <span class="keywordflow">if</span>( ret &lt; 0 &amp;&amp; ret != -EINTR &amp;&amp; ret != -EAGAIN ) {
 253 <a name="l00231"></a>00231                         m_lasterror = ret;
 254 <a name="l00232"></a>00232                         <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
 255 <a name="l00233"></a>00233                                 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_bulk_write (1)"</span>);
 256 <a name="l00234"></a>00234                         <span class="keywordflow">else</span>
 257 <a name="l00235"></a>00235                                 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_bulk_write (1)"</span>);
 258 <a name="l00236"></a>00236                 }
 259 <a name="l00237"></a>00237         } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
 260 <a name="l00238"></a>00238
 261 <a name="l00239"></a>00239         <span class="keywordflow">return</span> ret &gt;= 0;
 262 <a name="l00240"></a>00240 }
 263 <a name="l00241"></a>00241
 264 <a name="l00242"></a>00242 <span class="keywordtype">bool</span> Device::BulkWrite(<span class="keywordtype">int</span> ep, <span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> size, <span class="keywordtype">int</span> timeout)
 265 <a name="l00243"></a>00243 {
 266 <a name="l00244"></a>00244 <span class="preprocessor">#ifdef __DEBUG_MODE__</span>
 267 <a name="l00245"></a>00245 <span class="preprocessor"></span>        Barry::Data dump(data, size);
 268 <a name="l00246"></a>00246         ddout(<span class="stringliteral">"BulkWrite to endpoint "</span> &lt;&lt; std::dec &lt;&lt; ep &lt;&lt; <span class="stringliteral">":\n"</span> &lt;&lt; dump);
 269 <a name="l00247"></a>00247 <span class="preprocessor">#endif</span>
 270 <a name="l00248"></a>00248 <span class="preprocessor"></span>
 271 <a name="l00249"></a>00249         <span class="keywordtype">int</span> ret;
 272 <a name="l00250"></a>00250         <span class="keywordflow">do</span> {
 273 <a name="l00251"></a>00251                 ret = usb_bulk_write(m_handle, ep,
 274 <a name="l00252"></a>00252                         (<span class="keywordtype">char</span>*) data, size,
 275 <a name="l00253"></a>00253                         timeout == -1 ? m_timeout : timeout);
 276 <a name="l00254"></a>00254                 <span class="keywordflow">if</span>( ret &lt; 0 &amp;&amp; ret != -EINTR &amp;&amp; ret != -EAGAIN ) {
 277 <a name="l00255"></a>00255                         m_lasterror = ret;
 278 <a name="l00256"></a>00256                         <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
 279 <a name="l00257"></a>00257                                 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_bulk_write (2)"</span>);
 280 <a name="l00258"></a>00258                         <span class="keywordflow">else</span>
 281 <a name="l00259"></a>00259                                 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_bulk_write (2)"</span>);
 282 <a name="l00260"></a>00260                 }
 283 <a name="l00261"></a>00261         } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
 284 <a name="l00262"></a>00262
 285 <a name="l00263"></a>00263         <span class="keywordflow">return</span> ret &gt;= 0;
 286 <a name="l00264"></a>00264 }
 287 <a name="l00265"></a>00265
 288 <a name="l00266"></a>00266 <span class="keywordtype">bool</span> Device::InterruptRead(<span class="keywordtype">int</span> ep, Barry::Data &amp;data, <span class="keywordtype">int</span> timeout)
 289 <a name="l00267"></a>00267 {
 290 <a name="l00268"></a>00268         <span class="keywordtype">int</span> ret;
 291 <a name="l00269"></a>00269         <span class="keywordflow">do</span> {
 292 <a name="l00270"></a>00270                 data.QuickZap();
 293 <a name="l00271"></a>00271                 ret = usb_interrupt_read(m_handle, ep,
 294 <a name="l00272"></a>00272                         (<span class="keywordtype">char</span>*) data.GetBuffer(), data.GetBufSize(),
 295 <a name="l00273"></a>00273                         timeout == -1 ? m_timeout : timeout);
 296 <a name="l00274"></a>00274                 <span class="keywordflow">if</span>( ret &lt; 0 &amp;&amp; ret != -EINTR &amp;&amp; ret != -EAGAIN ) {
 297 <a name="l00275"></a>00275                         m_lasterror = ret;
 298 <a name="l00276"></a>00276                         <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
 299 <a name="l00277"></a>00277                                 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_interrupt_read"</span>);
 300 <a name="l00278"></a>00278                         <span class="keywordflow">else</span>
 301 <a name="l00279"></a>00279                                 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_interrupt_read"</span>);
 302 <a name="l00280"></a>00280                 }
 303 <a name="l00281"></a>00281                 data.ReleaseBuffer(ret);
 304 <a name="l00282"></a>00282         } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
 305 <a name="l00283"></a>00283
 306 <a name="l00284"></a>00284         <span class="keywordflow">return</span> ret &gt;= 0;
 307 <a name="l00285"></a>00285 }
 308 <a name="l00286"></a>00286
 309 <a name="l00287"></a>00287 <span class="keywordtype">bool</span> Device::InterruptWrite(<span class="keywordtype">int</span> ep, <span class="keyword">const</span> Barry::Data &amp;data, <span class="keywordtype">int</span> timeout)
 310 <a name="l00288"></a>00288 {
 311 <a name="l00289"></a>00289         ddout(<span class="stringliteral">"InterruptWrite to endpoint "</span> &lt;&lt; std::dec &lt;&lt; ep &lt;&lt; <span class="stringliteral">":\n"</span> &lt;&lt; data);
 312 <a name="l00290"></a>00290
 313 <a name="l00291"></a>00291         <span class="keywordtype">int</span> ret;
 314 <a name="l00292"></a>00292         <span class="keywordflow">do</span> {
 315 <a name="l00293"></a>00293                 ret = usb_interrupt_write(m_handle, ep,
 316 <a name="l00294"></a>00294                         (<span class="keywordtype">char</span>*) data.GetData(), data.GetSize(),
 317 <a name="l00295"></a>00295                         timeout == -1 ? m_timeout : timeout);
 318 <a name="l00296"></a>00296                 <span class="keywordflow">if</span>( ret &lt; 0 &amp;&amp; ret != -EINTR &amp;&amp; ret != -EAGAIN ) {
 319 <a name="l00297"></a>00297                         m_lasterror = ret;
 320 <a name="l00298"></a>00298                         <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
 321 <a name="l00299"></a>00299                                 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_interrupt_write"</span>);
 322 <a name="l00300"></a>00300                         <span class="keywordflow">else</span>
 323 <a name="l00301"></a>00301                                 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_interrupt_write"</span>);
 324 <a name="l00302"></a>00302                 }
 325 <a name="l00303"></a>00303         } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
 326 <a name="l00304"></a>00304
 327 <a name="l00305"></a>00305         <span class="keywordflow">return</span> ret &gt;= 0;
 328 <a name="l00306"></a>00306 }
 329 <a name="l00307"></a>00307
 330 <a name="l00308"></a>00308 <span class="comment">//</span>
 331 <a name="l00309"></a>00309 <span class="comment">// BulkDrain</span>
 332 <a name="l00310"></a>00310 <span class="comment">//</span><span class="comment"></span>
 333 <a name="l00311"></a>00311 <span class="comment">/// Reads anything available on the given endpoint, with a low timeout,</span>
 334 <a name="l00312"></a>00312 <span class="comment">/// in order to clear any pending reads.</span>
 335 <a name="l00313"></a>00313 <span class="comment">///</span>
 336 <a name="l00314"></a>00314 <span class="comment"></span><span class="keywordtype">void</span> Device::BulkDrain(<span class="keywordtype">int</span> ep, <span class="keywordtype">int</span> timeout)
 337 <a name="l00315"></a>00315 {
 338 <a name="l00316"></a>00316         <span class="keywordflow">try</span> {
 339 <a name="l00317"></a>00317                 Barry::Data data;
 340 <a name="l00318"></a>00318                 <span class="keywordflow">while</span>( BulkRead(ep, data, timeout) )
 341 <a name="l00319"></a>00319                 ;
 342 <a name="l00320"></a>00320         }
 343 <a name="l00321"></a>00321         <span class="keywordflow">catch</span>( <a class="code" href="classUsb_1_1Error.html" title="Thrown on low level USB errors.">Usb::Error</a> &amp; ) {}
 344 <a name="l00322"></a>00322 }
 345 <a name="l00323"></a>00323
 346 <a name="l00324"></a>00324 <span class="comment">//</span>
 347 <a name="l00325"></a>00325 <span class="comment">// GetConfiguration</span>
 348 <a name="l00326"></a>00326 <span class="comment">//</span><span class="comment"></span>
 349 <a name="l00327"></a>00327 <span class="comment">/// Uses the GET_CONFIGURATION control message to determine the currently</span>
 350 <a name="l00328"></a>00328 <span class="comment">/// selected USB configuration, returning it in the cfg argument.</span>
 351 <a name="l00329"></a>00329 <span class="comment">/// If unsuccessful, returns false.</span>
 352 <a name="l00330"></a>00330 <span class="comment">///</span>
 353 <a name="l00331"></a>00331 <span class="comment"></span><span class="keywordtype">bool</span> Device::GetConfiguration(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> &amp;cfg)
 354 <a name="l00332"></a>00332 {
 355 <a name="l00333"></a>00333         <span class="keywordtype">int</span> result = usb_control_msg(m_handle, 0x80, USB_REQ_GET_CONFIGURATION, 0, 0,
 356 <a name="l00334"></a>00334                 (<span class="keywordtype">char</span>*) &amp;cfg, 1, m_timeout);
 357 <a name="l00335"></a>00335         m_lasterror = result;
 358 <a name="l00336"></a>00336         <span class="keywordflow">return</span> result &gt;= 0;
 359 <a name="l00337"></a>00337 }
 360 <a name="l00338"></a>00338
 361 <a name="l00339"></a>00339
 362 <a name="l00340"></a>00340 <span class="comment"></span>
 363 <a name="l00341"></a>00341 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
 364 <a name="l00342"></a>00342 <span class="comment"></span><span class="comment">// Interface</span>
 365 <a name="l00343"></a>00343
 366 <a name="l00344"></a>00344 Interface::Interface(Device &amp;dev, <span class="keywordtype">int</span> iface)
 367 <a name="l00345"></a>00345         : m_dev(dev), m_iface(iface)
 368 <a name="l00346"></a>00346 {
 369 <a name="l00347"></a>00347         dout(<span class="stringliteral">"usb_claim_interface("</span> &lt;&lt; dev.GetHandle() &lt;&lt; <span class="stringliteral">","</span> &lt;&lt; std::dec &lt;&lt; iface &lt;&lt; <span class="stringliteral">")"</span>);
 370 <a name="l00348"></a>00348         <span class="keywordtype">int</span> ret = usb_claim_interface(dev.GetHandle(), iface);
 371 <a name="l00349"></a>00349         <span class="keywordflow">if</span>( ret &lt; 0 )
 372 <a name="l00350"></a>00350                 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"claim interface failed"</span>);
 373 <a name="l00351"></a>00351
 374 <a name="l00352"></a>00352         <span class="comment">// kernels &gt;= 2.6.28 don't set the interface the same as</span>
 375 <a name="l00353"></a>00353         <span class="comment">// previous versions did, and the Blackberry gets confused</span>
 376 <a name="l00354"></a>00354         <span class="comment">// if it isn't explicitly set</span>
 377 <a name="l00355"></a>00355         ret = usb_set_altinterface(dev.GetHandle(), iface);
 378 <a name="l00356"></a>00356         <span class="keywordflow">if</span>( ret &lt; 0 )
 379 <a name="l00357"></a>00357                 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"set alt interface failed"</span>);
 380 <a name="l00358"></a>00358 }
 381 <a name="l00359"></a>00359
 382 <a name="l00360"></a>00360 Interface::~Interface()
 383 <a name="l00361"></a>00361 {
 384 <a name="l00362"></a>00362         dout(<span class="stringliteral">"usb_release_interface("</span> &lt;&lt; m_dev.GetHandle() &lt;&lt; <span class="stringliteral">","</span> &lt;&lt; std::dec &lt;&lt; m_iface &lt;&lt; <span class="stringliteral">")"</span>);
 385 <a name="l00363"></a>00363         usb_release_interface(m_dev.GetHandle(), m_iface);
 386 <a name="l00364"></a>00364 }
 387 <a name="l00365"></a>00365
 388 <a name="l00366"></a>00366
 389 <a name="l00367"></a>00367 <span class="comment"></span>
 390 <a name="l00368"></a>00368 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
 391 <a name="l00369"></a>00369 <span class="comment"></span><span class="comment">// EndpointDiscovery</span>
 392 <a name="l00370"></a>00370
 393 <a name="l00371"></a>00371 <span class="keywordtype">bool</span> EndpointDiscovery::Discover(<span class="keyword">struct</span> usb_interface_descriptor *interface, <span class="keywordtype">int</span> epcount)
 394 <a name="l00372"></a>00372 {
 395 <a name="l00373"></a>00373         <span class="comment">// start fresh</span>
 396 <a name="l00374"></a>00374         clear();
 397 <a name="l00375"></a>00375         m_valid = <span class="keyword">false</span>;
 398 <a name="l00376"></a>00376
 399 <a name="l00377"></a>00377         EndpointPair pair;
 400 <a name="l00378"></a>00378
 401 <a name="l00379"></a>00379         <span class="keywordflow">if</span>( !interface || !interface-&gt;endpoint ) {
 402 <a name="l00380"></a>00380                 dout(<span class="stringliteral">"EndpointDiscovery::Discover: empty interface pointer"</span>);
 403 <a name="l00381"></a>00381                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
 404 <a name="l00382"></a>00382         }
 405 <a name="l00383"></a>00383
 406 <a name="l00384"></a>00384         <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i &lt; epcount; i++ ) {
 407 <a name="l00385"></a>00385                 <span class="comment">// load descriptor</span>
 408 <a name="l00386"></a>00386                 usb_endpoint_descriptor desc;
 409 <a name="l00387"></a>00387                 desc = interface-&gt;endpoint[i];
 410 <a name="l00388"></a>00388                 dout(<span class="stringliteral">"      endpoint_desc #"</span> &lt;&lt; i &lt;&lt; <span class="stringliteral">" loaded"</span>
 411 <a name="l00389"></a>00389                         &lt;&lt; <span class="stringliteral">"\nbLength: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> ) desc.bLength
 412 <a name="l00390"></a>00390                         &lt;&lt; <span class="stringliteral">"\nbDescriptorType: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> ) desc.bDescriptorType
 413 <a name="l00391"></a>00391                         &lt;&lt; <span class="stringliteral">"\nbEndpointAddress: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> ) desc.bEndpointAddress
 414 <a name="l00392"></a>00392                         &lt;&lt; <span class="stringliteral">"\nbmAttributes: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> ) desc.bmAttributes
 415 <a name="l00393"></a>00393                         &lt;&lt; <span class="stringliteral">"\nwMaxPacketSize: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> ) desc.wMaxPacketSize
 416 <a name="l00394"></a>00394                         &lt;&lt; <span class="stringliteral">"\nbInterval: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> ) desc.bInterval
 417 <a name="l00395"></a>00395                         &lt;&lt; <span class="stringliteral">"\nbRefresh: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> ) desc.bRefresh
 418 <a name="l00396"></a>00396                         &lt;&lt; <span class="stringliteral">"\nbSynchAddress: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> ) desc.bSynchAddress
 419 <a name="l00397"></a>00397                         &lt;&lt; <span class="stringliteral">"\n"</span>
 420 <a name="l00398"></a>00398                         );
 421 <a name="l00399"></a>00399
 422 <a name="l00400"></a>00400                 <span class="comment">// add to the map</span>
 423 <a name="l00401"></a>00401                 (*this)[desc.bEndpointAddress] = desc;
 424 <a name="l00402"></a>00402                 dout(<span class="stringliteral">"      endpoint added to map with bEndpointAddress: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.bEndpointAddress);
 425 <a name="l00403"></a>00403
 426 <a name="l00404"></a>00404                 <span class="comment">// parse the endpoint into read/write sets, if possible,</span>
 427 <a name="l00405"></a>00405                 <span class="comment">// going in discovery order...</span>
 428 <a name="l00406"></a>00406                 <span class="comment">// Assumptions:</span>
 429 <a name="l00407"></a>00407                 <span class="comment">//      - endpoints of related utility will be grouped</span>
 430 <a name="l00408"></a>00408                 <span class="comment">//      - endpoints with same type will be grouped</span>
 431 <a name="l00409"></a>00409                 <span class="comment">//      - endpoints that do not meet the above assumptions</span>
 432 <a name="l00410"></a>00410                 <span class="comment">//              do not belong in a pair</span>
 433 <a name="l00411"></a>00411                 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> type = desc.bmAttributes &amp; USB_ENDPOINT_TYPE_MASK;
 434 <a name="l00412"></a>00412                 <span class="keywordflow">if</span>( desc.bEndpointAddress &amp; USB_ENDPOINT_DIR_MASK ) {
 435 <a name="l00413"></a>00413                         <span class="comment">// read endpoint</span>
 436 <a name="l00414"></a>00414                         pair.read = desc.bEndpointAddress;
 437 <a name="l00415"></a>00415                         dout(<span class="stringliteral">"        pair.read = "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.read);
 438 <a name="l00416"></a>00416                         <span class="keywordflow">if</span>( pair.IsTypeSet() &amp;&amp; pair.type != type ) {
 439 <a name="l00417"></a>00417                                 <span class="comment">// if type is already set, we must start over</span>
 440 <a name="l00418"></a>00418                                 pair.write = 0;
 441 <a name="l00419"></a>00419                         }
 442 <a name="l00420"></a>00420                 }
 443 <a name="l00421"></a>00421                 <span class="keywordflow">else</span> {
 444 <a name="l00422"></a>00422                         <span class="comment">// write endpoint</span>
 445 <a name="l00423"></a>00423                         pair.write = desc.bEndpointAddress;
 446 <a name="l00424"></a>00424                         dout(<span class="stringliteral">"        pair.write = "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.write);
 447 <a name="l00425"></a>00425                         <span class="keywordflow">if</span>( pair.IsTypeSet() &amp;&amp; pair.type != type ) {
 448 <a name="l00426"></a>00426                                 <span class="comment">// if type is already set, we must start over</span>
 449 <a name="l00427"></a>00427                                 pair.read = 0;
 450 <a name="l00428"></a>00428                         }
 451 <a name="l00429"></a>00429                 }
 452 <a name="l00430"></a>00430                 <span class="comment">// save the type last</span>
 453 <a name="l00431"></a>00431                 pair.type = type;
 454 <a name="l00432"></a>00432                 dout(<span class="stringliteral">"        pair.type = "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.type);
 455 <a name="l00433"></a>00433
 456 <a name="l00434"></a>00434                 <span class="comment">// if pair is complete, add to array</span>
 457 <a name="l00435"></a>00435                 <span class="keywordflow">if</span>( pair.IsComplete() ) {
 458 <a name="l00436"></a>00436                         m_endpoints.push_back(pair);
 459 <a name="l00437"></a>00437                         dout(<span class="stringliteral">"        pair added! ("</span>
 460 <a name="l00438"></a>00438                                 &lt;&lt; <span class="stringliteral">"read: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.read &lt;&lt; <span class="stringliteral">","</span>
 461 <a name="l00439"></a>00439                                 &lt;&lt; <span class="stringliteral">"write: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.write &lt;&lt; <span class="stringliteral">","</span>
 462 <a name="l00440"></a>00440                                 &lt;&lt; <span class="stringliteral">"type: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.type &lt;&lt; <span class="stringliteral">")"</span>);
 463 <a name="l00441"></a>00441                         pair = EndpointPair();  <span class="comment">// clear</span>
 464 <a name="l00442"></a>00442                 }
 465 <a name="l00443"></a>00443         }
 466 <a name="l00444"></a>00444
 467 <a name="l00445"></a>00445         <span class="comment">// just for debugging purposes, check for extra descriptors, and</span>
 468 <a name="l00446"></a>00446         <span class="comment">// dump them to dout if they exist</span>
 469 <a name="l00447"></a>00447         <span class="keywordflow">if</span>( interface-&gt;extra ) {
 470 <a name="l00448"></a>00448                 dout(<span class="stringliteral">"while parsing endpoints, found a block of extra descriptors:"</span>);
 471 <a name="l00449"></a>00449                 Barry::Data data(interface-&gt;extra, interface-&gt;extralen);
 472 <a name="l00450"></a>00450                 dout(data);
 473 <a name="l00451"></a>00451         }
 474 <a name="l00452"></a>00452
 475 <a name="l00453"></a>00453         <span class="keywordflow">return</span> m_valid = <span class="keyword">true</span>;
 476 <a name="l00454"></a>00454 }
 477 <a name="l00455"></a>00455
 478 <a name="l00456"></a>00456 <span class="comment"></span>
 479 <a name="l00457"></a>00457 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
 480 <a name="l00458"></a>00458 <span class="comment"></span><span class="comment">// InterfaceDiscovery</span>
 481 <a name="l00459"></a>00459
 482 <a name="l00460"></a>00460 <span class="keywordtype">bool</span> InterfaceDiscovery::DiscoverInterface(<span class="keyword">struct</span> usb_interface *interface)
 483 <a name="l00461"></a>00461 {
 484 <a name="l00462"></a>00462         <span class="keywordflow">if</span>( !interface-&gt;altsetting ) {
 485 <a name="l00463"></a>00463                 dout(<span class="stringliteral">"InterfaceDiscovery::DiscoverIterface: empty altsetting"</span>);
 486 <a name="l00464"></a>00464                 <span class="comment">// some devices are buggy and return a higher bNumInterfaces</span>
 487 <a name="l00465"></a>00465                 <span class="comment">// than the number of interfaces available... in this case</span>
 488 <a name="l00466"></a>00466                 <span class="comment">// we just skip and continue</span>
 489 <a name="l00467"></a>00467                 <span class="keywordflow">return</span> <span class="keyword">true</span>;
 490 <a name="l00468"></a>00468         }
 491 <a name="l00469"></a>00469
 492 <a name="l00470"></a>00470         <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i &lt; interface-&gt;num_altsetting; i++ ) {
 493 <a name="l00471"></a>00471                 <span class="comment">// load descriptor</span>
 494 <a name="l00472"></a>00472                 InterfaceDesc desc;
 495 <a name="l00473"></a>00473                 desc.desc = interface-&gt;altsetting[i];
 496 <a name="l00474"></a>00474                 dout(<span class="stringliteral">"    interface_desc #"</span> &lt;&lt; i &lt;&lt; <span class="stringliteral">" loaded"</span>
 497 <a name="l00475"></a>00475                         &lt;&lt; <span class="stringliteral">"\nbLength: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span>) desc.desc.bLength
 498 <a name="l00476"></a>00476                         &lt;&lt; <span class="stringliteral">"\nbDescriptorType: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span>) desc.desc.bDescriptorType
 499 <a name="l00477"></a>00477                         &lt;&lt; <span class="stringliteral">"\nbInterfaceNumber: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span>) desc.desc.bInterfaceNumber
 500 <a name="l00478"></a>00478                         &lt;&lt; <span class="stringliteral">"\nbAlternateSetting: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span>) desc.desc.bAlternateSetting
 501 <a name="l00479"></a>00479                         &lt;&lt; <span class="stringliteral">"\nbNumEndpoints: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span>) desc.desc.bNumEndpoints
 502 <a name="l00480"></a>00480                         &lt;&lt; <span class="stringliteral">"\nbInterfaceClass: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span>) desc.desc.bInterfaceClass
 503 <a name="l00481"></a>00481                         &lt;&lt; <span class="stringliteral">"\nbInterfaceSubClass: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span>) desc.desc.bInterfaceSubClass
 504 <a name="l00482"></a>00482                         &lt;&lt; <span class="stringliteral">"\nbInterfaceProtocol: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span>) desc.desc.bInterfaceProtocol
 505 <a name="l00483"></a>00483                         &lt;&lt; <span class="stringliteral">"\niInterface: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span>) desc.desc.iInterface
 506 <a name="l00484"></a>00484                         &lt;&lt; <span class="stringliteral">"\n"</span>
 507 <a name="l00485"></a>00485                         );
 508 <a name="l00486"></a>00486
 509 <a name="l00487"></a>00487                 <span class="comment">// load all endpoints on this interface</span>
 510 <a name="l00488"></a>00488                 <span class="keywordflow">if</span>( !desc.endpoints.Discover(&amp;desc.desc, desc.desc.bNumEndpoints) ) {
 511 <a name="l00489"></a>00489                         dout(<span class="stringliteral">"    endpoint discovery failed for bInterfaceNumber: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.desc.bInterfaceNumber &lt;&lt; <span class="stringliteral">", not added to map."</span>);
 512 <a name="l00490"></a>00490                         <span class="keywordflow">return</span> <span class="keyword">false</span>;
 513 <a name="l00491"></a>00491                 }
 514 <a name="l00492"></a>00492
 515 <a name="l00493"></a>00493                 <span class="comment">// add to the map</span>
 516 <a name="l00494"></a>00494                 (*this)[desc.desc.bInterfaceNumber] = desc;
 517 <a name="l00495"></a>00495                 dout(<span class="stringliteral">"    interface added to map with bInterfaceNumber: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.desc.bInterfaceNumber);
 518 <a name="l00496"></a>00496         }
 519 <a name="l00497"></a>00497         <span class="keywordflow">return</span> <span class="keyword">true</span>;
 520 <a name="l00498"></a>00498 }
 521 <a name="l00499"></a>00499
 522 <a name="l00500"></a>00500 <span class="keywordtype">bool</span> InterfaceDiscovery::Discover(<a class="code" href="namespaceUsb.html#6d445b3f5ddb92da82207f62e7d9494f" title="Typedefs used by the wrapper class, in the hope to make it easier to switch from...">Usb::DeviceIDType</a> devid, <span class="keywordtype">int</span> cfgidx, <span class="keywordtype">int</span> ifcount)
 523 <a name="l00501"></a>00501 {
 524 <a name="l00502"></a>00502         <span class="comment">// start fresh</span>
 525 <a name="l00503"></a>00503         clear();
 526 <a name="l00504"></a>00504         m_valid = <span class="keyword">false</span>;
 527 <a name="l00505"></a>00505
 528 <a name="l00506"></a>00506         <span class="keywordflow">if</span>( !devid || !devid-&gt;config || !devid-&gt;config[cfgidx].interface ) {
 529 <a name="l00507"></a>00507                 dout(<span class="stringliteral">"InterfaceDiscovery::Discover: empty devid/config/interface"</span>);
 530 <a name="l00508"></a>00508                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
 531 <a name="l00509"></a>00509         }
 532 <a name="l00510"></a>00510
 533 <a name="l00511"></a>00511         <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i &lt; ifcount; i++ ) {
 534 <a name="l00512"></a>00512                 <span class="keywordflow">if</span>( !DiscoverInterface(&amp;devid-&gt;config[cfgidx].interface[i]) )
 535 <a name="l00513"></a>00513                         <span class="keywordflow">return</span> <span class="keyword">false</span>;
 536 <a name="l00514"></a>00514         }
 537 <a name="l00515"></a>00515
 538 <a name="l00516"></a>00516         <span class="keywordflow">return</span> m_valid = <span class="keyword">true</span>;
 539 <a name="l00517"></a>00517 }
 540 <a name="l00518"></a>00518
 541 <a name="l00519"></a>00519 <span class="comment"></span>
 542 <a name="l00520"></a>00520 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
 543 <a name="l00521"></a>00521 <span class="comment"></span><span class="comment">// ConfigDiscovery</span>
 544 <a name="l00522"></a>00522
 545 <a name="l00523"></a>00523 <span class="keywordtype">bool</span> ConfigDiscovery::Discover(<a class="code" href="namespaceUsb.html#6d445b3f5ddb92da82207f62e7d9494f" title="Typedefs used by the wrapper class, in the hope to make it easier to switch from...">Usb::DeviceIDType</a> devid, <span class="keywordtype">int</span> cfgcount)
 546 <a name="l00524"></a>00524 {
 547 <a name="l00525"></a>00525         <span class="comment">// start fresh</span>
 548 <a name="l00526"></a>00526         clear();
 549 <a name="l00527"></a>00527         m_valid = <span class="keyword">false</span>;
 550 <a name="l00528"></a>00528
 551 <a name="l00529"></a>00529         <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i &lt; cfgcount; i++ ) {
 552 <a name="l00530"></a>00530                 <span class="comment">// load descriptor</span>
 553 <a name="l00531"></a>00531                 ConfigDesc desc;
 554 <a name="l00532"></a>00532                 <span class="keywordflow">if</span>( !devid || !devid-&gt;config ) {
 555 <a name="l00533"></a>00533                         dout(<span class="stringliteral">"ConfigDiscovery::Discover: empty devid or config"</span>);
 556 <a name="l00534"></a>00534                         <span class="keywordflow">return</span> <span class="keyword">false</span>;
 557 <a name="l00535"></a>00535                 }
 558 <a name="l00536"></a>00536                 desc.desc = devid-&gt;config[i];
 559 <a name="l00537"></a>00537                 dout(<span class="stringliteral">"  config_desc #"</span> &lt;&lt; i &lt;&lt; <span class="stringliteral">" loaded"</span>
 560 <a name="l00538"></a>00538                         &lt;&lt; <span class="stringliteral">"\nbLength: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bLength
 561 <a name="l00539"></a>00539                         &lt;&lt; <span class="stringliteral">"\nbDescriptorType: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bDescriptorType
 562 <a name="l00540"></a>00540                         &lt;&lt; <span class="stringliteral">"\nwTotalLength: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.wTotalLength
 563 <a name="l00541"></a>00541                         &lt;&lt; <span class="stringliteral">"\nbNumInterfaces: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bNumInterfaces
 564 <a name="l00542"></a>00542                         &lt;&lt; <span class="stringliteral">"\nbConfigurationValue: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bConfigurationValue
 565 <a name="l00543"></a>00543                         &lt;&lt; <span class="stringliteral">"\niConfiguration: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.iConfiguration
 566 <a name="l00544"></a>00544                         &lt;&lt; <span class="stringliteral">"\nbmAttributes: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bmAttributes
 567 <a name="l00545"></a>00545                         &lt;&lt; <span class="stringliteral">"\nMaxPower: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.MaxPower
 568 <a name="l00546"></a>00546                         &lt;&lt; <span class="stringliteral">"\n"</span>
 569 <a name="l00547"></a>00547                         );
 570 <a name="l00548"></a>00548
 571 <a name="l00549"></a>00549                 <span class="comment">// just for debugging purposes, check for extra descriptors, and</span>
 572 <a name="l00550"></a>00550                 <span class="comment">// dump them to dout if they exist</span>
 573 <a name="l00551"></a>00551                 <span class="keywordflow">if</span>( desc.desc.extra ) {
 574 <a name="l00552"></a>00552                         dout(<span class="stringliteral">"while parsing config descriptor, found a block of extra descriptors:"</span>);
 575 <a name="l00553"></a>00553                         Barry::Data data(desc.desc.extra, desc.desc.extralen);
 576 <a name="l00554"></a>00554                         dout(data);
 577 <a name="l00555"></a>00555                 }
 578 <a name="l00556"></a>00556
 579 <a name="l00557"></a>00557                 <span class="comment">// load all interfaces on this configuration</span>
 580 <a name="l00558"></a>00558                 <span class="keywordflow">if</span>( !desc.interfaces.Discover(devid, i, desc.desc.bNumInterfaces) ) {
 581 <a name="l00559"></a>00559                         dout(<span class="stringliteral">"  config discovery failed for bConfigurationValue: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.desc.bConfigurationValue &lt;&lt; <span class="stringliteral">", not added to map."</span>);
 582 <a name="l00560"></a>00560                         <span class="keywordflow">return</span> <span class="keyword">false</span>;
 583 <a name="l00561"></a>00561                 }
 584 <a name="l00562"></a>00562
 585 <a name="l00563"></a>00563                 <span class="comment">// add to the map</span>
 586 <a name="l00564"></a>00564                 (*this)[desc.desc.bConfigurationValue] = desc;
 587 <a name="l00565"></a>00565                 dout(<span class="stringliteral">"  config added to map with bConfigurationValue: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.desc.bConfigurationValue);
 588 <a name="l00566"></a>00566         }
 589 <a name="l00567"></a>00567
 590 <a name="l00568"></a>00568         <span class="keywordflow">return</span> m_valid = <span class="keyword">true</span>;
 591 <a name="l00569"></a>00569 }
 592 <a name="l00570"></a>00570
 593 <a name="l00571"></a>00571 <span class="comment"></span>
 594 <a name="l00572"></a>00572 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
 595 <a name="l00573"></a>00573 <span class="comment"></span><span class="comment">// DeviceDiscovery</span>
 596 <a name="l00574"></a>00574
 597 <a name="l00575"></a>00575 DeviceDiscovery::DeviceDiscovery(<a class="code" href="namespaceUsb.html#6d445b3f5ddb92da82207f62e7d9494f" title="Typedefs used by the wrapper class, in the hope to make it easier to switch from...">Usb::DeviceIDType</a> devid)
 598 <a name="l00576"></a>00576         : m_valid(false)
 599 <a name="l00577"></a>00577 {
 600 <a name="l00578"></a>00578         Discover(devid);
 601 <a name="l00579"></a>00579 }
 602 <a name="l00580"></a>00580
 603 <a name="l00581"></a>00581 <span class="keywordtype">bool</span> DeviceDiscovery::Discover(<a class="code" href="namespaceUsb.html#6d445b3f5ddb92da82207f62e7d9494f" title="Typedefs used by the wrapper class, in the hope to make it easier to switch from...">Usb::DeviceIDType</a> devid)
 604 <a name="l00582"></a>00582 {
 605 <a name="l00583"></a>00583         <span class="comment">// start fresh</span>
 606 <a name="l00584"></a>00584         configs.clear();
 607 <a name="l00585"></a>00585         m_valid = <span class="keyword">false</span>;
 608 <a name="l00586"></a>00586
 609 <a name="l00587"></a>00587         <span class="comment">// copy the descriptor over to our memory</span>
 610 <a name="l00588"></a>00588         <span class="keywordflow">if</span>( !devid ) {
 611 <a name="l00589"></a>00589                 dout(<span class="stringliteral">"DeviceDiscovery::Discover: empty devid"</span>);
 612 <a name="l00590"></a>00590                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
 613 <a name="l00591"></a>00591         }
 614 <a name="l00592"></a>00592
 615 <a name="l00593"></a>00593         desc = devid-&gt;descriptor;
 616 <a name="l00594"></a>00594         dout(<span class="stringliteral">"device_desc loaded"</span>
 617 <a name="l00595"></a>00595                 &lt;&lt; <span class="stringliteral">"\nbLength: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bLength
 618 <a name="l00596"></a>00596                 &lt;&lt; <span class="stringliteral">"\nbDescriptorType: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bDescriptorType
 619 <a name="l00597"></a>00597                 &lt;&lt; <span class="stringliteral">"\nbcdUSB: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bcdUSB
 620 <a name="l00598"></a>00598                 &lt;&lt; <span class="stringliteral">"\nbDeviceClass: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bDeviceClass
 621 <a name="l00599"></a>00599                 &lt;&lt; <span class="stringliteral">"\nbDeviceSubClass: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bDeviceSubClass
 622 <a name="l00600"></a>00600                 &lt;&lt; <span class="stringliteral">"\nbDeviceProtocol: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bDeviceProtocol
 623 <a name="l00601"></a>00601                 &lt;&lt; <span class="stringliteral">"\nbMaxPacketSize0: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bMaxPacketSize0
 624 <a name="l00602"></a>00602                 &lt;&lt; <span class="stringliteral">"\nidVendor: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.idVendor
 625 <a name="l00603"></a>00603                 &lt;&lt; <span class="stringliteral">"\nidProduct: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.idProduct
 626 <a name="l00604"></a>00604                 &lt;&lt; <span class="stringliteral">"\nbcdDevice: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bcdDevice
 627 <a name="l00605"></a>00605                 &lt;&lt; <span class="stringliteral">"\niManufacturer: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.iManufacturer
 628 <a name="l00606"></a>00606                 &lt;&lt; <span class="stringliteral">"\niProduct: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.iProduct
 629 <a name="l00607"></a>00607                 &lt;&lt; <span class="stringliteral">"\niSerialNumber: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.iSerialNumber
 630 <a name="l00608"></a>00608                 &lt;&lt; <span class="stringliteral">"\nbNumConfigurations: "</span> &lt;&lt; (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bNumConfigurations
 631 <a name="l00609"></a>00609                 &lt;&lt; <span class="stringliteral">"\n"</span>
 632 <a name="l00610"></a>00610         );
 633 <a name="l00611"></a>00611
 634 <a name="l00612"></a>00612         m_valid = configs.Discover(devid, desc.bNumConfigurations);
 635 <a name="l00613"></a>00613         <span class="keywordflow">return</span> m_valid;
 636 <a name="l00614"></a>00614 }
 637 <a name="l00615"></a>00615
 638 <a name="l00616"></a>00616 } <span class="comment">// namespace Usb</span>
 639 <a name="l00617"></a>00617
 640 </pre></div></div>
 641 <hr size="1"><address style="text-align: right;"><small>Generated on Sat Aug 29 00:01:53 2009 for Barry by&nbsp;
 642 <a href="http://www.doxygen.org/index.html">
 643 <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
 644 </body>
 645 </html>