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<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>
<a name="l00002"></a>00002 <span class="comment"></span><span class="comment">/// \file usbwrap.cc</span>
<a name="l00003"></a>00003 <span class="comment"></span><span class="comment">/// USB API wrapper</span>
<a name="l00004"></a>00004 <span class="comment"></span><span class="comment">///</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment">/*</span>
<a name="l00007"></a>00007 <span class="comment"> Copyright (C) 2005-2011, Chris Frey</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
<a name="l00010"></a>00010 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00011"></a>00011 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00012"></a>00012 <span class="comment"> (at your option) any later version.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
<a name="l00015"></a>00015 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00016"></a>00016 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.</span>
<a name="l00017"></a>00017 <span class="comment"></span>
<a name="l00018"></a>00018 <span class="comment"> See the GNU General Public License in the COPYING file at the</span>
<a name="l00019"></a>00019 <span class="comment"> root directory of this project for more details.</span>
<a name="l00020"></a>00020 <span class="comment">*/</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="usbwrap_8h.html" title="USB API wrapper.">usbwrap.h</a>"</span>
<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>
<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>
<a name="l00026"></a>00026 <span class="preprocessor">#include "debug.h"</span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#include <iomanip></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <sstream></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <errno.h></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <string.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <limits.h></span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="preprocessor">#ifndef __DEBUG_MODE__</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#define __DEBUG_MODE__</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor">#include "debug.h"</span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">namespace </span>Usb {
<a name="l00040"></a>00040 <span class="comment"></span>
<a name="l00041"></a>00041 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00042"></a>00042 <span class="comment"></span><span class="comment">// Usb::Error exception class</span>
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="keyword">static</span> std::string GetErrorString(<span class="keywordtype">int</span> libusb_errcode, <span class="keyword">const</span> std::string &str)
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 std::ostringstream oss;
<a name="l00047"></a>00047 oss << <span class="stringliteral">"("</span>;
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keywordflow">if</span>( libusb_errcode ) {
<a name="l00050"></a>00050 oss << std::setbase(10) << libusb_errcode << <span class="stringliteral">", "</span>;
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="comment">// oss << strerror(-libusb_errno) << "): "</span>
<a name="l00054"></a>00054 oss << usb_strerror() << <span class="stringliteral">"): "</span>;
<a name="l00055"></a>00055 oss << str;
<a name="l00056"></a>00056 <span class="keywordflow">return</span> oss.str();
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058
<a name="l00059"></a>00059 Error::Error(<span class="keyword">const</span> std::string &str)
<a name="l00060"></a>00060 : Barry::Error(GetErrorString(0, str))
<a name="l00061"></a>00061 , m_libusb_errcode(0)
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064
<a name="l00065"></a>00065 Error::Error(<span class="keywordtype">int</span> libusb_errcode, <span class="keyword">const</span> std::string &str)
<a name="l00066"></a>00066 : Barry::Error(GetErrorString(libusb_errcode, str))
<a name="l00067"></a>00067 , m_libusb_errcode(libusb_errcode)
<a name="l00068"></a>00068 {
<a name="l00069"></a>00069 }
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="comment"></span>
<a name="l00072"></a>00072 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00073"></a>00073 <span class="comment"></span><span class="comment">// Match</span>
<a name="l00074"></a>00074
<a name="l00075"></a>00075 Match::Match(<span class="keywordtype">int</span> vendor, <span class="keywordtype">int</span> product,
<a name="l00076"></a>00076 <span class="keyword">const</span> <span class="keywordtype">char</span> *busname, <span class="keyword">const</span> <span class="keywordtype">char</span> *devname)
<a name="l00077"></a>00077 : m_busses(0)
<a name="l00078"></a>00078 , m_dev(0)
<a name="l00079"></a>00079 , m_vendor(vendor)
<a name="l00080"></a>00080 , m_product(product)
<a name="l00081"></a>00081 , m_busname(busname)
<a name="l00082"></a>00082 , m_devname(devname)
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 usb_find_busses();
<a name="l00085"></a>00085 usb_find_devices();
<a name="l00086"></a>00086 m_busses = usb_get_busses();
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a>00089 Match::~Match()
<a name="l00090"></a>00090 {
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="keywordtype">bool</span> Match::ToNum(<span class="keyword">const</span> <span class="keywordtype">char</span> *str, <span class="keywordtype">long</span> &num)
<a name="l00094"></a>00094 {
<a name="l00095"></a>00095 <span class="keywordtype">char</span> *end = 0;
<a name="l00096"></a>00096 num = strtol(str, &end, 10);
<a name="l00097"></a>00097 <span class="keywordflow">return</span> num >= 0 && <span class="comment">// no negative numbers</span>
<a name="l00098"></a>00098 num != LONG_MIN && num != LONG_MAX && <span class="comment">// no overflow</span>
<a name="l00099"></a>00099 str != end && *end == <span class="charliteral">'\0'</span>; <span class="comment">// whole string valid</span>
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="comment">//</span>
<a name="l00103"></a>00103 <span class="comment">// Linux treats bus and device path names as numbers, sometimes left</span>
<a name="l00104"></a>00104 <span class="comment">// padded with zeros. Other platforms, such as Windows, use strings,</span>
<a name="l00105"></a>00105 <span class="comment">// such as "bus-1" or similar.</span>
<a name="l00106"></a>00106 <span class="comment">//</span>
<a name="l00107"></a>00107 <span class="comment">// Here we try to convert each string to a number, and if successful,</span>
<a name="l00108"></a>00108 <span class="comment">// compare them. If unable to convert, then compare as strings.</span>
<a name="l00109"></a>00109 <span class="comment">// This way, "3" == "003" and "bus-foobar" == "bus-foobar".</span>
<a name="l00110"></a>00110 <span class="comment">//</span>
<a name="l00111"></a>00111 <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)
<a name="l00112"></a>00112 {
<a name="l00113"></a>00113 <span class="keywordtype">long</span> l1, l2;
<a name="l00114"></a>00114 <span class="keywordflow">if</span>( ToNum(n1, l1) && ToNum(n2, l2) ) {
<a name="l00115"></a>00115 <span class="keywordflow">return</span> l1 == l2;
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 <span class="keywordflow">else</span> {
<a name="l00118"></a>00118 <span class="keywordflow">return</span> strcmp(n1, n2) == 0;
<a name="l00119"></a>00119 }
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <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)
<a name="l00123"></a>00123 {
<a name="l00124"></a>00124 <span class="keywordflow">for</span>( ; m_busses; m_busses = m_busses->next ) {
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="comment">// only search on given bus</span>
<a name="l00127"></a>00127 <span class="keywordflow">if</span>( m_busname && !NameCompare(m_busname, m_busses->dirname) )
<a name="l00128"></a>00128 <span class="keywordflow">continue</span>;
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="keywordflow">if</span>( !m_dev )
<a name="l00131"></a>00131 m_dev = m_busses->devices;
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keywordflow">for</span>( ; m_dev; m_dev = m_dev->next ) {
<a name="l00134"></a>00134
<a name="l00135"></a>00135 <span class="comment">// search for specific device</span>
<a name="l00136"></a>00136 <span class="keywordflow">if</span>( m_devname && !NameCompare(m_devname, m_dev->filename) )
<a name="l00137"></a>00137 <span class="keywordflow">continue</span>;
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="comment">// is there a match?</span>
<a name="l00140"></a>00140 <span class="keywordflow">if</span>( m_dev->descriptor.idVendor == m_vendor &&
<a name="l00141"></a>00141 m_dev->descriptor.idProduct == m_product ) {
<a name="l00142"></a>00142 <span class="comment">// found!</span>
<a name="l00143"></a>00143 *devid = m_dev;
<a name="l00144"></a>00144
<a name="l00145"></a>00145 <span class="comment">// advance for next time</span>
<a name="l00146"></a>00146 m_dev = m_dev->next;
<a name="l00147"></a>00147 <span class="keywordflow">if</span>( !m_dev )
<a name="l00148"></a>00148 m_busses = m_busses->next;
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="comment">// done</span>
<a name="l00151"></a>00151 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="comment"></span>
<a name="l00159"></a>00159 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00160"></a>00160 <span class="comment"></span><span class="comment">// Device</span>
<a name="l00161"></a>00161
<a name="l00162"></a>00162 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)
<a name="l00163"></a>00163 : m_id(id),
<a name="l00164"></a>00164 m_timeout(timeout)
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 dout(<span class="stringliteral">"usb_open("</span> << std::dec << <span class="keywordtype">id</span> << <span class="stringliteral">")"</span>);
<a name="l00167"></a>00167 <span class="keywordflow">if</span>( !<span class="keywordtype">id</span> )
<a name="l00168"></a>00168 <span class="keywordflow">throw</span> Error(<span class="stringliteral">"invalid USB device ID"</span>);
<a name="l00169"></a>00169 m_handle = usb_open(<span class="keywordtype">id</span>);
<a name="l00170"></a>00170 <span class="keywordflow">if</span>( !m_handle )
<a name="l00171"></a>00171 <span class="keywordflow">throw</span> Error(<span class="stringliteral">"open failed"</span>);
<a name="l00172"></a>00172 }
<a name="l00173"></a>00173
<a name="l00174"></a>00174 Device::~Device()
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176 dout(<span class="stringliteral">"usb_close("</span> << std::dec << m_handle << <span class="stringliteral">")"</span>);
<a name="l00177"></a>00177 usb_close(m_handle);
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179
<a name="l00180"></a>00180 <span class="keywordtype">bool</span> Device::SetConfiguration(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> cfg)
<a name="l00181"></a>00181 {
<a name="l00182"></a>00182 dout(<span class="stringliteral">"usb_set_configuration("</span> << std::dec << m_handle << <span class="stringliteral">", 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) cfg << <span class="stringliteral">")"</span>);
<a name="l00183"></a>00183 <span class="keywordtype">int</span> ret = usb_set_configuration(m_handle, cfg);
<a name="l00184"></a>00184 m_lasterror = ret;
<a name="l00185"></a>00185 <span class="keywordflow">return</span> ret >= 0;
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="keywordtype">bool</span> Device::ClearHalt(<span class="keywordtype">int</span> ep)
<a name="l00189"></a>00189 {
<a name="l00190"></a>00190 dout(<span class="stringliteral">"usb_clear_halt("</span> << std::dec << m_handle << <span class="stringliteral">", 0x"</span> << std::hex << ep << <span class="stringliteral">")"</span>);
<a name="l00191"></a>00191 <span class="keywordtype">int</span> ret = usb_clear_halt(m_handle, ep);
<a name="l00192"></a>00192 m_lasterror = ret;
<a name="l00193"></a>00193 <span class="keywordflow">return</span> ret >= 0;
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195
<a name="l00196"></a>00196 <span class="keywordtype">bool</span> Device::Reset()
<a name="l00197"></a>00197 {
<a name="l00198"></a>00198 dout(<span class="stringliteral">"usb_reset("</span> << std::dec << m_handle << <span class="stringliteral">")"</span>);
<a name="l00199"></a>00199 <span class="keywordtype">int</span> ret = usb_reset(m_handle);
<a name="l00200"></a>00200 m_lasterror = ret;
<a name="l00201"></a>00201 <span class="keywordflow">return</span> ret == 0;
<a name="l00202"></a>00202 }
<a name="l00203"></a>00203
<a name="l00204"></a>00204 <span class="keywordtype">bool</span> Device::BulkRead(<span class="keywordtype">int</span> ep, Barry::Data &data, <span class="keywordtype">int</span> timeout)
<a name="l00205"></a>00205 {
<a name="l00206"></a>00206 <span class="keywordtype">int</span> ret;
<a name="l00207"></a>00207 <span class="keywordflow">do</span> {
<a name="l00208"></a>00208 data.QuickZap();
<a name="l00209"></a>00209 ret = usb_bulk_read(m_handle, ep,
<a name="l00210"></a>00210 (<span class="keywordtype">char</span>*) data.GetBuffer(), data.GetBufSize(),
<a name="l00211"></a>00211 timeout == -1 ? m_timeout : timeout);
<a name="l00212"></a>00212 <span class="keywordflow">if</span>( ret < 0 && ret != -EINTR && ret != -EAGAIN ) {
<a name="l00213"></a>00213 m_lasterror = ret;
<a name="l00214"></a>00214 <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
<a name="l00215"></a>00215 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_bulk_read"</span>);
<a name="l00216"></a>00216 <span class="keywordflow">else</span>
<a name="l00217"></a>00217 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_bulk_read"</span>);
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219 <span class="keywordflow">else</span> <span class="keywordflow">if</span>( ret > 0 )
<a name="l00220"></a>00220 data.ReleaseBuffer(ret);
<a name="l00221"></a>00221 } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
<a name="l00222"></a>00222
<a name="l00223"></a>00223 <span class="keywordflow">return</span> ret >= 0;
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="keywordtype">bool</span> Device::BulkWrite(<span class="keywordtype">int</span> ep, <span class="keyword">const</span> Barry::Data &data, <span class="keywordtype">int</span> timeout)
<a name="l00227"></a>00227 {
<a name="l00228"></a>00228 ddout(<span class="stringliteral">"BulkWrite to endpoint 0x"</span> << std::hex << ep << <span class="stringliteral">":\n"</span> << data);
<a name="l00229"></a>00229 <span class="keywordtype">int</span> ret;
<a name="l00230"></a>00230 <span class="keywordflow">do</span> {
<a name="l00231"></a>00231 ret = usb_bulk_write(m_handle, ep,
<a name="l00232"></a>00232 (<span class="keywordtype">char</span>*) data.GetData(), data.GetSize(),
<a name="l00233"></a>00233 timeout == -1 ? m_timeout : timeout);
<a name="l00234"></a>00234 <span class="keywordflow">if</span>( ret < 0 && ret != -EINTR && ret != -EAGAIN ) {
<a name="l00235"></a>00235 m_lasterror = ret;
<a name="l00236"></a>00236 <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
<a name="l00237"></a>00237 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_bulk_write (1)"</span>);
<a name="l00238"></a>00238 <span class="keywordflow">else</span>
<a name="l00239"></a>00239 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_bulk_write (1)"</span>);
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241 } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
<a name="l00242"></a>00242
<a name="l00243"></a>00243 <span class="keywordflow">return</span> ret >= 0;
<a name="l00244"></a>00244 }
<a name="l00245"></a>00245
<a name="l00246"></a>00246 <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)
<a name="l00247"></a>00247 {
<a name="l00248"></a>00248 <span class="preprocessor">#ifdef __DEBUG_MODE__</span>
<a name="l00249"></a>00249 <span class="preprocessor"></span> Barry::Data dump(data, size);
<a name="l00250"></a>00250 ddout(<span class="stringliteral">"BulkWrite to endpoint 0x"</span> << std::hex << ep << <span class="stringliteral">":\n"</span> << dump);
<a name="l00251"></a>00251 <span class="preprocessor">#endif</span>
<a name="l00252"></a>00252 <span class="preprocessor"></span>
<a name="l00253"></a>00253 <span class="keywordtype">int</span> ret;
<a name="l00254"></a>00254 <span class="keywordflow">do</span> {
<a name="l00255"></a>00255 ret = usb_bulk_write(m_handle, ep,
<a name="l00256"></a>00256 (<span class="keywordtype">char</span>*) data, size,
<a name="l00257"></a>00257 timeout == -1 ? m_timeout : timeout);
<a name="l00258"></a>00258 <span class="keywordflow">if</span>( ret < 0 && ret != -EINTR && ret != -EAGAIN ) {
<a name="l00259"></a>00259 m_lasterror = ret;
<a name="l00260"></a>00260 <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
<a name="l00261"></a>00261 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_bulk_write (2)"</span>);
<a name="l00262"></a>00262 <span class="keywordflow">else</span>
<a name="l00263"></a>00263 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_bulk_write (2)"</span>);
<a name="l00264"></a>00264 }
<a name="l00265"></a>00265 } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="keywordflow">return</span> ret >= 0;
<a name="l00268"></a>00268 }
<a name="l00269"></a>00269
<a name="l00270"></a>00270 <span class="keywordtype">bool</span> Device::InterruptRead(<span class="keywordtype">int</span> ep, Barry::Data &data, <span class="keywordtype">int</span> timeout)
<a name="l00271"></a>00271 {
<a name="l00272"></a>00272 <span class="keywordtype">int</span> ret;
<a name="l00273"></a>00273 <span class="keywordflow">do</span> {
<a name="l00274"></a>00274 data.QuickZap();
<a name="l00275"></a>00275 ret = usb_interrupt_read(m_handle, ep,
<a name="l00276"></a>00276 (<span class="keywordtype">char</span>*) data.GetBuffer(), data.GetBufSize(),
<a name="l00277"></a>00277 timeout == -1 ? m_timeout : timeout);
<a name="l00278"></a>00278 <span class="keywordflow">if</span>( ret < 0 && ret != -EINTR && ret != -EAGAIN ) {
<a name="l00279"></a>00279 m_lasterror = ret;
<a name="l00280"></a>00280 <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
<a name="l00281"></a>00281 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_interrupt_read"</span>);
<a name="l00282"></a>00282 <span class="keywordflow">else</span>
<a name="l00283"></a>00283 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_interrupt_read"</span>);
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285 <span class="keywordflow">else</span> <span class="keywordflow">if</span>( ret > 0 )
<a name="l00286"></a>00286 data.ReleaseBuffer(ret);
<a name="l00287"></a>00287 } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
<a name="l00288"></a>00288
<a name="l00289"></a>00289 <span class="keywordflow">return</span> ret >= 0;
<a name="l00290"></a>00290 }
<a name="l00291"></a>00291
<a name="l00292"></a>00292 <span class="keywordtype">bool</span> Device::InterruptWrite(<span class="keywordtype">int</span> ep, <span class="keyword">const</span> Barry::Data &data, <span class="keywordtype">int</span> timeout)
<a name="l00293"></a>00293 {
<a name="l00294"></a>00294 ddout(<span class="stringliteral">"InterruptWrite to endpoint 0x"</span> << std::hex << ep << <span class="stringliteral">":\n"</span> << data);
<a name="l00295"></a>00295
<a name="l00296"></a>00296 <span class="keywordtype">int</span> ret;
<a name="l00297"></a>00297 <span class="keywordflow">do</span> {
<a name="l00298"></a>00298 ret = usb_interrupt_write(m_handle, ep,
<a name="l00299"></a>00299 (<span class="keywordtype">char</span>*) data.GetData(), data.GetSize(),
<a name="l00300"></a>00300 timeout == -1 ? m_timeout : timeout);
<a name="l00301"></a>00301 <span class="keywordflow">if</span>( ret < 0 && ret != -EINTR && ret != -EAGAIN ) {
<a name="l00302"></a>00302 m_lasterror = ret;
<a name="l00303"></a>00303 <span class="keywordflow">if</span>( ret == -ETIMEDOUT )
<a name="l00304"></a>00304 <span class="keywordflow">throw</span> Timeout(ret, <span class="stringliteral">"Timeout in usb_interrupt_write"</span>);
<a name="l00305"></a>00305 <span class="keywordflow">else</span>
<a name="l00306"></a>00306 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"Error in usb_interrupt_write"</span>);
<a name="l00307"></a>00307 }
<a name="l00308"></a>00308 } <span class="keywordflow">while</span>( ret == -EINTR || ret == -EAGAIN );
<a name="l00309"></a>00309
<a name="l00310"></a>00310 <span class="keywordflow">return</span> ret >= 0;
<a name="l00311"></a>00311 }
<a name="l00312"></a>00312
<a name="l00313"></a>00313 <span class="comment">//</span>
<a name="l00314"></a>00314 <span class="comment">// BulkDrain</span>
<a name="l00315"></a>00315 <span class="comment">//</span><span class="comment"></span>
<a name="l00316"></a>00316 <span class="comment">/// Reads anything available on the given endpoint, with a low timeout,</span>
<a name="l00317"></a>00317 <span class="comment">/// in order to clear any pending reads.</span>
<a name="l00318"></a>00318 <span class="comment">///</span>
<a name="l00319"></a>00319 <span class="comment"></span><span class="keywordtype">void</span> Device::BulkDrain(<span class="keywordtype">int</span> ep, <span class="keywordtype">int</span> timeout)
<a name="l00320"></a>00320 {
<a name="l00321"></a>00321 <span class="keywordflow">try</span> {
<a name="l00322"></a>00322 Barry::Data data;
<a name="l00323"></a>00323 <span class="keywordflow">while</span>( BulkRead(ep, data, timeout) )
<a name="l00324"></a>00324 ;
<a name="l00325"></a>00325 }
<a name="l00326"></a>00326 <span class="keywordflow">catch</span>( <a class="code" href="classUsb_1_1Error.html" title="Thrown on low level USB errors.">Usb::Error</a> & ) {}
<a name="l00327"></a>00327 }
<a name="l00328"></a>00328
<a name="l00329"></a>00329 <span class="comment">//</span>
<a name="l00330"></a>00330 <span class="comment">// GetConfiguration</span>
<a name="l00331"></a>00331 <span class="comment">//</span><span class="comment"></span>
<a name="l00332"></a>00332 <span class="comment">/// Uses the GET_CONFIGURATION control message to determine the currently</span>
<a name="l00333"></a>00333 <span class="comment">/// selected USB configuration, returning it in the cfg argument.</span>
<a name="l00334"></a>00334 <span class="comment">/// If unsuccessful, returns false.</span>
<a name="l00335"></a>00335 <span class="comment">///</span>
<a name="l00336"></a>00336 <span class="comment"></span><span class="keywordtype">bool</span> Device::GetConfiguration(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> &cfg)
<a name="l00337"></a>00337 {
<a name="l00338"></a>00338 <span class="keywordtype">int</span> result = usb_control_msg(m_handle, 0x80, USB_REQ_GET_CONFIGURATION, 0, 0,
<a name="l00339"></a>00339 (<span class="keywordtype">char</span>*) &cfg, 1, m_timeout);
<a name="l00340"></a>00340 m_lasterror = result;
<a name="l00341"></a>00341 <span class="keywordflow">return</span> result >= 0;
<a name="l00342"></a>00342 }
<a name="l00343"></a>00343
<a name="l00344"></a>00344 <span class="comment">//</span>
<a name="l00345"></a>00345 <span class="comment">// SetAltInterface</span>
<a name="l00346"></a>00346 <span class="comment">//</span><span class="comment"></span>
<a name="l00347"></a>00347 <span class="comment">/// Uses the usb_set_altinterface() function to set the currently</span>
<a name="l00348"></a>00348 <span class="comment">/// selected USB alternate setting of the current interface.</span>
<a name="l00349"></a>00349 <span class="comment">/// The iface parameter passed in should be a value specified</span>
<a name="l00350"></a>00350 <span class="comment">/// in the bAlternateSetting descriptor field.</span>
<a name="l00351"></a>00351 <span class="comment">/// If unsuccessful, returns false.</span>
<a name="l00352"></a>00352 <span class="comment">///</span>
<a name="l00353"></a>00353 <span class="comment"></span><span class="keywordtype">bool</span> Device::SetAltInterface(<span class="keywordtype">int</span> iface)
<a name="l00354"></a>00354 {
<a name="l00355"></a>00355 <span class="keywordtype">int</span> result = usb_set_altinterface(m_handle, iface);
<a name="l00356"></a>00356 m_lasterror = result;
<a name="l00357"></a>00357 <span class="keywordflow">return</span> result >= 0;
<a name="l00358"></a>00358 }
<a name="l00359"></a>00359
<a name="l00360"></a>00360
<a name="l00361"></a>00361 <span class="comment"></span>
<a name="l00362"></a>00362 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00363"></a>00363 <span class="comment"></span><span class="comment">// Interface</span>
<a name="l00364"></a>00364
<a name="l00365"></a>00365 Interface::Interface(Device &dev, <span class="keywordtype">int</span> iface)
<a name="l00366"></a>00366 : m_dev(dev), m_iface(iface)
<a name="l00367"></a>00367 {
<a name="l00368"></a>00368 dout(<span class="stringliteral">"usb_claim_interface("</span> << dev.GetHandle() << <span class="stringliteral">", 0x"</span> << std::hex << iface << <span class="stringliteral">")"</span>);
<a name="l00369"></a>00369 <span class="keywordtype">int</span> ret = usb_claim_interface(dev.GetHandle(), iface);
<a name="l00370"></a>00370 <span class="keywordflow">if</span>( ret < 0 )
<a name="l00371"></a>00371 <span class="keywordflow">throw</span> Error(ret, <span class="stringliteral">"claim interface failed"</span>);
<a name="l00372"></a>00372 }
<a name="l00373"></a>00373
<a name="l00374"></a>00374 Interface::~Interface()
<a name="l00375"></a>00375 {
<a name="l00376"></a>00376 dout(<span class="stringliteral">"usb_release_interface("</span> << m_dev.GetHandle() << <span class="stringliteral">", 0x"</span> << std::hex << m_iface << <span class="stringliteral">")"</span>);
<a name="l00377"></a>00377 usb_release_interface(m_dev.GetHandle(), m_iface);
<a name="l00378"></a>00378 }
<a name="l00379"></a>00379
<a name="l00380"></a>00380
<a name="l00381"></a>00381 <span class="comment"></span>
<a name="l00382"></a>00382 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00383"></a>00383 <span class="comment"></span><span class="comment">// EndpointDiscovery</span>
<a name="l00384"></a>00384
<a name="l00385"></a>00385 <span class="keywordtype">bool</span> EndpointDiscovery::Discover(<span class="keyword">struct</span> usb_interface_descriptor *interface, <span class="keywordtype">int</span> epcount)
<a name="l00386"></a>00386 {
<a name="l00387"></a>00387 <span class="comment">// start fresh</span>
<a name="l00388"></a>00388 clear();
<a name="l00389"></a>00389 m_valid = <span class="keyword">false</span>;
<a name="l00390"></a>00390
<a name="l00391"></a>00391 EndpointPair pair;
<a name="l00392"></a>00392
<a name="l00393"></a>00393 <span class="keywordflow">if</span>( !interface || !interface->endpoint ) {
<a name="l00394"></a>00394 dout(<span class="stringliteral">"EndpointDiscovery::Discover: empty interface pointer"</span>);
<a name="l00395"></a>00395 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00396"></a>00396 }
<a name="l00397"></a>00397
<a name="l00398"></a>00398 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i < epcount; i++ ) {
<a name="l00399"></a>00399 <span class="comment">// load descriptor</span>
<a name="l00400"></a>00400 usb_endpoint_descriptor desc;
<a name="l00401"></a>00401 desc = interface->endpoint[i];
<a name="l00402"></a>00402 dout(<span class="stringliteral">" endpoint_desc #"</span> << std::dec << i << <span class="stringliteral">" loaded"</span>
<a name="l00403"></a>00403 << <span class="stringliteral">"\nbLength: "</span> << std::dec << (<span class="keywordtype">unsigned</span> ) desc.bLength
<a name="l00404"></a>00404 << <span class="stringliteral">"\nbDescriptorType: "</span> << std::dec << (<span class="keywordtype">unsigned</span> ) desc.bDescriptorType
<a name="l00405"></a>00405 << <span class="stringliteral">"\nbEndpointAddress: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> ) desc.bEndpointAddress
<a name="l00406"></a>00406 << <span class="stringliteral">"\nbmAttributes: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> ) desc.bmAttributes
<a name="l00407"></a>00407 << <span class="stringliteral">"\nwMaxPacketSize: "</span> << std::dec << (<span class="keywordtype">unsigned</span> ) desc.wMaxPacketSize
<a name="l00408"></a>00408 << <span class="stringliteral">"\nbInterval: "</span> << std::dec << (<span class="keywordtype">unsigned</span> ) desc.bInterval
<a name="l00409"></a>00409 << <span class="stringliteral">"\nbRefresh: "</span> << std::dec << (<span class="keywordtype">unsigned</span> ) desc.bRefresh
<a name="l00410"></a>00410 << <span class="stringliteral">"\nbSynchAddress: "</span> << std::dec << (<span class="keywordtype">unsigned</span> ) desc.bSynchAddress
<a name="l00411"></a>00411 << <span class="stringliteral">"\n"</span>
<a name="l00412"></a>00412 );
<a name="l00413"></a>00413
<a name="l00414"></a>00414 <span class="comment">// add to the map</span>
<a name="l00415"></a>00415 (*this)[desc.bEndpointAddress] = desc;
<a name="l00416"></a>00416 dout(<span class="stringliteral">" endpoint added to map with bEndpointAddress: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.bEndpointAddress);
<a name="l00417"></a>00417
<a name="l00418"></a>00418 <span class="comment">// parse the endpoint into read/write sets, if possible,</span>
<a name="l00419"></a>00419 <span class="comment">// going in discovery order...</span>
<a name="l00420"></a>00420 <span class="comment">// Assumptions:</span>
<a name="l00421"></a>00421 <span class="comment">// - endpoints of related utility will be grouped</span>
<a name="l00422"></a>00422 <span class="comment">// - endpoints with same type will be grouped</span>
<a name="l00423"></a>00423 <span class="comment">// - endpoints that do not meet the above assumptions</span>
<a name="l00424"></a>00424 <span class="comment">// do not belong in a pair</span>
<a name="l00425"></a>00425 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> type = desc.bmAttributes & USB_ENDPOINT_TYPE_MASK;
<a name="l00426"></a>00426 <span class="keywordflow">if</span>( desc.bEndpointAddress & USB_ENDPOINT_DIR_MASK ) {
<a name="l00427"></a>00427 <span class="comment">// read endpoint</span>
<a name="l00428"></a>00428 pair.read = desc.bEndpointAddress;
<a name="l00429"></a>00429 dout(<span class="stringliteral">" pair.read = 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.read);
<a name="l00430"></a>00430 <span class="keywordflow">if</span>( pair.IsTypeSet() && pair.type != type ) {
<a name="l00431"></a>00431 <span class="comment">// if type is already set, we must start over</span>
<a name="l00432"></a>00432 pair.write = 0;
<a name="l00433"></a>00433 }
<a name="l00434"></a>00434 }
<a name="l00435"></a>00435 <span class="keywordflow">else</span> {
<a name="l00436"></a>00436 <span class="comment">// write endpoint</span>
<a name="l00437"></a>00437 pair.write = desc.bEndpointAddress;
<a name="l00438"></a>00438 dout(<span class="stringliteral">" pair.write = 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.write);
<a name="l00439"></a>00439 <span class="keywordflow">if</span>( pair.IsTypeSet() && pair.type != type ) {
<a name="l00440"></a>00440 <span class="comment">// if type is already set, we must start over</span>
<a name="l00441"></a>00441 pair.read = 0;
<a name="l00442"></a>00442 }
<a name="l00443"></a>00443 }
<a name="l00444"></a>00444 <span class="comment">// save the type last</span>
<a name="l00445"></a>00445 pair.type = type;
<a name="l00446"></a>00446 dout(<span class="stringliteral">" pair.type = 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.type);
<a name="l00447"></a>00447
<a name="l00448"></a>00448 <span class="comment">// if pair is complete, add to array</span>
<a name="l00449"></a>00449 <span class="keywordflow">if</span>( pair.IsComplete() ) {
<a name="l00450"></a>00450 m_endpoints.push_back(pair);
<a name="l00451"></a>00451 dout(<span class="stringliteral">" pair added! ("</span>
<a name="l00452"></a>00452 << <span class="stringliteral">"read: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.read << <span class="stringliteral">","</span>
<a name="l00453"></a>00453 << <span class="stringliteral">"write: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.write << <span class="stringliteral">","</span>
<a name="l00454"></a>00454 << <span class="stringliteral">"type: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)pair.type << <span class="stringliteral">")"</span>);
<a name="l00455"></a>00455 pair = EndpointPair(); <span class="comment">// clear</span>
<a name="l00456"></a>00456 }
<a name="l00457"></a>00457 }
<a name="l00458"></a>00458
<a name="l00459"></a>00459 <span class="comment">// just for debugging purposes, check for extra descriptors, and</span>
<a name="l00460"></a>00460 <span class="comment">// dump them to dout if they exist</span>
<a name="l00461"></a>00461 <span class="keywordflow">if</span>( interface->extra ) {
<a name="l00462"></a>00462 dout(<span class="stringliteral">"while parsing endpoints, found a block of extra descriptors:"</span>);
<a name="l00463"></a>00463 Barry::Data data(interface->extra, interface->extralen);
<a name="l00464"></a>00464 dout(data);
<a name="l00465"></a>00465 }
<a name="l00466"></a>00466
<a name="l00467"></a>00467 <span class="keywordflow">return</span> m_valid = <span class="keyword">true</span>;
<a name="l00468"></a>00468 }
<a name="l00469"></a>00469
<a name="l00470"></a>00470 <span class="comment"></span>
<a name="l00471"></a>00471 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00472"></a>00472 <span class="comment"></span><span class="comment">// InterfaceDiscovery</span>
<a name="l00473"></a>00473
<a name="l00474"></a>00474 <span class="keywordtype">bool</span> InterfaceDiscovery::DiscoverInterface(<span class="keyword">struct</span> usb_interface *interface)
<a name="l00475"></a>00475 {
<a name="l00476"></a>00476 <span class="keywordflow">if</span>( !interface->altsetting ) {
<a name="l00477"></a>00477 dout(<span class="stringliteral">"InterfaceDiscovery::DiscoverIterface: empty altsetting"</span>);
<a name="l00478"></a>00478 <span class="comment">// some devices are buggy and return a higher bNumInterfaces</span>
<a name="l00479"></a>00479 <span class="comment">// than the number of interfaces available... in this case</span>
<a name="l00480"></a>00480 <span class="comment">// we just skip and continue</span>
<a name="l00481"></a>00481 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00482"></a>00482 }
<a name="l00483"></a>00483
<a name="l00484"></a>00484 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i < interface->num_altsetting; i++ ) {
<a name="l00485"></a>00485 <span class="comment">// load descriptor</span>
<a name="l00486"></a>00486 InterfaceDesc desc;
<a name="l00487"></a>00487 desc.desc = interface->altsetting[i];
<a name="l00488"></a>00488 dout(<span class="stringliteral">" interface_desc #"</span> << std::dec << i << <span class="stringliteral">" loaded"</span>
<a name="l00489"></a>00489 << <span class="stringliteral">"\nbLength: "</span> << std::dec << (<span class="keywordtype">unsigned</span>) desc.desc.bLength
<a name="l00490"></a>00490 << <span class="stringliteral">"\nbDescriptorType: "</span> << std::dec << (<span class="keywordtype">unsigned</span>) desc.desc.bDescriptorType
<a name="l00491"></a>00491 << <span class="stringliteral">"\nbInterfaceNumber: "</span> << std::dec << (<span class="keywordtype">unsigned</span>) desc.desc.bInterfaceNumber
<a name="l00492"></a>00492 << <span class="stringliteral">"\nbAlternateSetting: "</span> << std::dec << (<span class="keywordtype">unsigned</span>) desc.desc.bAlternateSetting
<a name="l00493"></a>00493 << <span class="stringliteral">"\nbNumEndpoints: "</span> << std::dec << (<span class="keywordtype">unsigned</span>) desc.desc.bNumEndpoints
<a name="l00494"></a>00494 << <span class="stringliteral">"\nbInterfaceClass: "</span> << std::dec << (<span class="keywordtype">unsigned</span>) desc.desc.bInterfaceClass
<a name="l00495"></a>00495 << <span class="stringliteral">"\nbInterfaceSubClass: "</span> << std::dec << (<span class="keywordtype">unsigned</span>) desc.desc.bInterfaceSubClass
<a name="l00496"></a>00496 << <span class="stringliteral">"\nbInterfaceProtocol: "</span> << std::dec << (<span class="keywordtype">unsigned</span>) desc.desc.bInterfaceProtocol
<a name="l00497"></a>00497 << <span class="stringliteral">"\niInterface: "</span> << std::dec << (<span class="keywordtype">unsigned</span>) desc.desc.iInterface
<a name="l00498"></a>00498 << <span class="stringliteral">"\n"</span>
<a name="l00499"></a>00499 );
<a name="l00500"></a>00500
<a name="l00501"></a>00501 <span class="comment">// load all endpoints on this interface</span>
<a name="l00502"></a>00502 <span class="keywordflow">if</span>( !desc.endpoints.Discover(&desc.desc, desc.desc.bNumEndpoints) ) {
<a name="l00503"></a>00503 dout(<span class="stringliteral">" endpoint discovery failed for bInterfaceNumber: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.desc.bInterfaceNumber << <span class="stringliteral">", not added to map."</span>);
<a name="l00504"></a>00504 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00505"></a>00505 }
<a name="l00506"></a>00506
<a name="l00507"></a>00507 <span class="comment">// add to the map</span>
<a name="l00508"></a>00508 (*this)[desc.desc.bInterfaceNumber] = desc;
<a name="l00509"></a>00509 dout(<span class="stringliteral">" interface added to map with bInterfaceNumber: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.desc.bInterfaceNumber);
<a name="l00510"></a>00510 }
<a name="l00511"></a>00511 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00512"></a>00512 }
<a name="l00513"></a>00513
<a name="l00514"></a>00514 <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)
<a name="l00515"></a>00515 {
<a name="l00516"></a>00516 <span class="comment">// start fresh</span>
<a name="l00517"></a>00517 clear();
<a name="l00518"></a>00518 m_valid = <span class="keyword">false</span>;
<a name="l00519"></a>00519
<a name="l00520"></a>00520 <span class="keywordflow">if</span>( !devid || !devid->config || !devid->config[cfgidx].interface ) {
<a name="l00521"></a>00521 dout(<span class="stringliteral">"InterfaceDiscovery::Discover: empty devid/config/interface"</span>);
<a name="l00522"></a>00522 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00523"></a>00523 }
<a name="l00524"></a>00524
<a name="l00525"></a>00525 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i < ifcount; i++ ) {
<a name="l00526"></a>00526 <span class="keywordflow">if</span>( !DiscoverInterface(&devid->config[cfgidx].interface[i]) )
<a name="l00527"></a>00527 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00528"></a>00528 }
<a name="l00529"></a>00529
<a name="l00530"></a>00530 <span class="keywordflow">return</span> m_valid = <span class="keyword">true</span>;
<a name="l00531"></a>00531 }
<a name="l00532"></a>00532
<a name="l00533"></a>00533 <span class="comment"></span>
<a name="l00534"></a>00534 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00535"></a>00535 <span class="comment"></span><span class="comment">// ConfigDiscovery</span>
<a name="l00536"></a>00536
<a name="l00537"></a>00537 <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)
<a name="l00538"></a>00538 {
<a name="l00539"></a>00539 <span class="comment">// start fresh</span>
<a name="l00540"></a>00540 clear();
<a name="l00541"></a>00541 m_valid = <span class="keyword">false</span>;
<a name="l00542"></a>00542
<a name="l00543"></a>00543 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i < cfgcount; i++ ) {
<a name="l00544"></a>00544 <span class="comment">// load descriptor</span>
<a name="l00545"></a>00545 ConfigDesc desc;
<a name="l00546"></a>00546 <span class="keywordflow">if</span>( !devid || !devid->config ) {
<a name="l00547"></a>00547 dout(<span class="stringliteral">"ConfigDiscovery::Discover: empty devid or config"</span>);
<a name="l00548"></a>00548 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00549"></a>00549 }
<a name="l00550"></a>00550 desc.desc = devid->config[i];
<a name="l00551"></a>00551 dout(<span class="stringliteral">" config_desc #"</span> << std::dec << i << <span class="stringliteral">" loaded"</span>
<a name="l00552"></a>00552 << <span class="stringliteral">"\nbLength: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bLength
<a name="l00553"></a>00553 << <span class="stringliteral">"\nbDescriptorType: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bDescriptorType
<a name="l00554"></a>00554 << <span class="stringliteral">"\nwTotalLength: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.wTotalLength
<a name="l00555"></a>00555 << <span class="stringliteral">"\nbNumInterfaces: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bNumInterfaces
<a name="l00556"></a>00556 << <span class="stringliteral">"\nbConfigurationValue: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bConfigurationValue
<a name="l00557"></a>00557 << <span class="stringliteral">"\niConfiguration: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.iConfiguration
<a name="l00558"></a>00558 << <span class="stringliteral">"\nbmAttributes: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.bmAttributes
<a name="l00559"></a>00559 << <span class="stringliteral">"\nMaxPower: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.desc.MaxPower
<a name="l00560"></a>00560 << <span class="stringliteral">"\n"</span>
<a name="l00561"></a>00561 );
<a name="l00562"></a>00562
<a name="l00563"></a>00563 <span class="comment">// just for debugging purposes, check for extra descriptors, and</span>
<a name="l00564"></a>00564 <span class="comment">// dump them to dout if they exist</span>
<a name="l00565"></a>00565 <span class="keywordflow">if</span>( desc.desc.extra ) {
<a name="l00566"></a>00566 dout(<span class="stringliteral">"while parsing config descriptor, found a block of extra descriptors:"</span>);
<a name="l00567"></a>00567 Barry::Data data(desc.desc.extra, desc.desc.extralen);
<a name="l00568"></a>00568 dout(data);
<a name="l00569"></a>00569 }
<a name="l00570"></a>00570
<a name="l00571"></a>00571 <span class="comment">// load all interfaces on this configuration</span>
<a name="l00572"></a>00572 <span class="keywordflow">if</span>( !desc.interfaces.Discover(devid, i, desc.desc.bNumInterfaces) ) {
<a name="l00573"></a>00573 dout(<span class="stringliteral">" config discovery failed for bConfigurationValue: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.desc.bConfigurationValue << <span class="stringliteral">", not added to map."</span>);
<a name="l00574"></a>00574 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00575"></a>00575 }
<a name="l00576"></a>00576
<a name="l00577"></a>00577 <span class="comment">// add to the map</span>
<a name="l00578"></a>00578 (*this)[desc.desc.bConfigurationValue] = desc;
<a name="l00579"></a>00579 dout(<span class="stringliteral">" config added to map with bConfigurationValue: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)desc.desc.bConfigurationValue);
<a name="l00580"></a>00580 }
<a name="l00581"></a>00581
<a name="l00582"></a>00582 <span class="keywordflow">return</span> m_valid = <span class="keyword">true</span>;
<a name="l00583"></a>00583 }
<a name="l00584"></a>00584
<a name="l00585"></a>00585 <span class="comment"></span>
<a name="l00586"></a>00586 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00587"></a>00587 <span class="comment"></span><span class="comment">// DeviceDiscovery</span>
<a name="l00588"></a>00588
<a name="l00589"></a>00589 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)
<a name="l00590"></a>00590 : m_valid(false)
<a name="l00591"></a>00591 {
<a name="l00592"></a>00592 Discover(devid);
<a name="l00593"></a>00593 }
<a name="l00594"></a>00594
<a name="l00595"></a>00595 <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)
<a name="l00596"></a>00596 {
<a name="l00597"></a>00597 <span class="comment">// start fresh</span>
<a name="l00598"></a>00598 configs.clear();
<a name="l00599"></a>00599 m_valid = <span class="keyword">false</span>;
<a name="l00600"></a>00600
<a name="l00601"></a>00601 <span class="comment">// copy the descriptor over to our memory</span>
<a name="l00602"></a>00602 <span class="keywordflow">if</span>( !devid ) {
<a name="l00603"></a>00603 dout(<span class="stringliteral">"DeviceDiscovery::Discover: empty devid"</span>);
<a name="l00604"></a>00604 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00605"></a>00605 }
<a name="l00606"></a>00606
<a name="l00607"></a>00607 desc = devid->descriptor;
<a name="l00608"></a>00608 dout(<span class="stringliteral">"device_desc loaded"</span>
<a name="l00609"></a>00609 << <span class="stringliteral">"\nbLength: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bLength
<a name="l00610"></a>00610 << <span class="stringliteral">"\nbDescriptorType: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bDescriptorType
<a name="l00611"></a>00611 << <span class="stringliteral">"\nbcdUSB: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bcdUSB
<a name="l00612"></a>00612 << <span class="stringliteral">"\nbDeviceClass: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bDeviceClass
<a name="l00613"></a>00613 << <span class="stringliteral">"\nbDeviceSubClass: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bDeviceSubClass
<a name="l00614"></a>00614 << <span class="stringliteral">"\nbDeviceProtocol: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bDeviceProtocol
<a name="l00615"></a>00615 << <span class="stringliteral">"\nbMaxPacketSize0: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bMaxPacketSize0
<a name="l00616"></a>00616 << <span class="stringliteral">"\nidVendor: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.idVendor
<a name="l00617"></a>00617 << <span class="stringliteral">"\nidProduct: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.idProduct
<a name="l00618"></a>00618 << <span class="stringliteral">"\nbcdDevice: 0x"</span> << std::hex << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bcdDevice
<a name="l00619"></a>00619 << <span class="stringliteral">"\niManufacturer: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.iManufacturer
<a name="l00620"></a>00620 << <span class="stringliteral">"\niProduct: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.iProduct
<a name="l00621"></a>00621 << <span class="stringliteral">"\niSerialNumber: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.iSerialNumber
<a name="l00622"></a>00622 << <span class="stringliteral">"\nbNumConfigurations: "</span> << std::dec << (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) desc.bNumConfigurations
<a name="l00623"></a>00623 << <span class="stringliteral">"\n"</span>
<a name="l00624"></a>00624 );
<a name="l00625"></a>00625
<a name="l00626"></a>00626 m_valid = configs.Discover(devid, desc.bNumConfigurations);
<a name="l00627"></a>00627 <span class="keywordflow">return</span> m_valid;
<a name="l00628"></a>00628 }
<a name="l00629"></a>00629
<a name="l00630"></a>00630 } <span class="comment">// namespace Usb</span>
<a name="l00631"></a>00631
</pre></div></div>
<hr size="1"><address style="text-align: right;"><small>Generated on Tue Mar 1 17:50:16 2011 for Barry by
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