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<h1>bcharge.cc</h1><a href="bcharge_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 bcharge.cc</span>
<a name="l00003"></a>00003 <span class="comment"></span><span class="comment">/// Talk to the Blackberry just enough to change the Max Power</span>
<a name="l00004"></a>00004 <span class="comment"></span><span class="comment">/// to 500mA. Cycles through all devices attached to USB,</span>
<a name="l00005"></a>00005 <span class="comment"></span><span class="comment">/// attempting to set all matching Blackberry devices to charge.</span>
<a name="l00006"></a>00006 <span class="comment"></span><span class="comment">///</span>
<a name="l00007"></a>00007 <span class="comment"></span><span class="comment">/// This file is part of the Barry project:</span>
<a name="l00008"></a>00008 <span class="comment"></span><span class="comment">///</span>
<a name="l00009"></a>00009 <span class="comment"></span><span class="comment">/// http://www.netdirect.ca/software/packages/barry</span>
<a name="l00010"></a>00010 <span class="comment"></span><span class="comment">/// http://sourceforge.net/projects/barry</span>
<a name="l00011"></a>00011 <span class="comment"></span><span class="comment">///</span>
<a name="l00012"></a>00012 <span class="comment"></span><span class="comment">/// Compile with the following command (needs libusb):</span>
<a name="l00013"></a>00013 <span class="comment"></span><span class="comment">///</span>
<a name="l00014"></a>00014 <span class="comment"></span><span class="comment">/// g++ -o bcharge bcharge.cc -lusb</span>
<a name="l00015"></a>00015 <span class="comment"></span><span class="comment">///</span>
<a name="l00016"></a>00016 <span class="comment"></span>
<a name="l00017"></a>00017 <span class="comment">/*</span>
<a name="l00018"></a>00018 <span class="comment"> Copyright (C) 2006-2011, Net Direct Inc. (http://www.netdirect.ca/)</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
<a name="l00021"></a>00021 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00022"></a>00022 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00023"></a>00023 <span class="comment"> (at your option) any later version.</span>
<a name="l00024"></a>00024 <span class="comment"></span>
<a name="l00025"></a>00025 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
<a name="l00026"></a>00026 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00027"></a>00027 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.</span>
<a name="l00028"></a>00028 <span class="comment"></span>
<a name="l00029"></a>00029 <span class="comment"> See the GNU General Public License in the COPYING file at the</span>
<a name="l00030"></a>00030 <span class="comment"> root directory of this project for more details.</span>
<a name="l00031"></a>00031 <span class="comment">*/</span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="preprocessor">#include <usb.h></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <stdio.h></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <string.h></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <unistd.h></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <errno.h></span>
<a name="l00038"></a>00038 <span class="preprocessor">#include <sys/types.h></span>
<a name="l00039"></a>00039 <span class="preprocessor">#include <sys/stat.h></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include <fcntl.h></span>
<a name="l00041"></a>00041 <span class="preprocessor">#include <string></span>
<a name="l00042"></a>00042 <span class="preprocessor">#include <barry/common.h></span>
<a name="l00043"></a>00043 <span class="preprocessor">#include "<a class="code" href="i18n_8h.html" title="Common internationalization defines, via gettext.">i18n.h</a>"</span>
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keyword">enum</span> ModeType {
<a name="l00046"></a>00046 NO_CHANGE,
<a name="l00047"></a>00047 PEARL_CLASSIC_MODE_0001, <span class="comment">// force classic mode</span>
<a name="l00048"></a>00048 PEARL_DUAL_MODE_0004, <span class="comment">// force dual mode</span>
<a name="l00049"></a>00049 CONDITIONAL_DUAL_MODE, <span class="comment">// set dual mode if no class 255</span>
<a name="l00050"></a>00050 <span class="comment">// interface is found (database iface)</span>
<a name="l00051"></a>00051 };
<a name="l00052"></a>00052
<a name="l00053"></a>00053 std::string udev_devpath;
<a name="l00054"></a>00054 std::string sysfs_path = <span class="stringliteral">"/sys"</span>;
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keywordtype">void</span> Usage()
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 printf(
<a name="l00059"></a>00059 <span class="stringliteral">"bcharge - Adjust Blackberry charging modes\n"</span>
<a name="l00060"></a>00060 <span class="stringliteral">" Copyright 2006-2011, Net Direct Inc. (http://www.netdirect.ca/)\n"</span>
<a name="l00061"></a>00061 <span class="stringliteral">"\n"</span>
<a name="l00062"></a>00062 <span class="stringliteral">" -d Set to dual mode (0004)\n"</span>
<a name="l00063"></a>00063 <span class="stringliteral">" -o Set a Pearl to old Blackberry mode (0001)\n"</span>
<a name="l00064"></a>00064 <span class="stringliteral">" -g Set dual mode only if database interface class 255\n"</span>
<a name="l00065"></a>00065 <span class="stringliteral">" is not found\n"</span>
<a name="l00066"></a>00066 <span class="stringliteral">"\n"</span>
<a name="l00067"></a>00067 <span class="stringliteral">" -h This help message\n"</span>
<a name="l00068"></a>00068 <span class="stringliteral">" -p devpath The devpath argument from udev. If specified, will attempt\n"</span>
<a name="l00069"></a>00069 <span class="stringliteral">" to adjust USB suspend settings to keep the device charging.\n"</span>
<a name="l00070"></a>00070 <span class="stringliteral">" -s path The path where sysfs is mounted. Defaults to '/sys'\n"</span>
<a name="l00071"></a>00071 <span class="stringliteral">"\n"</span>
<a name="l00072"></a>00072 );
<a name="l00073"></a>00073 }
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keywordtype">void</span> control(usb_dev_handle *dev, <span class="keywordtype">int</span> requesttype, <span class="keywordtype">int</span> request, <span class="keywordtype">int</span> value,
<a name="l00076"></a>00076 <span class="keywordtype">int</span> index, <span class="keywordtype">char</span> *bytes, <span class="keywordtype">int</span> size, <span class="keywordtype">int</span> timeout)
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 <span class="keywordtype">int</span> result = usb_control_msg(dev, requesttype, request, value, index,
<a name="l00079"></a>00079 bytes, size, timeout);
<a name="l00080"></a>00080 <span class="keywordflow">if</span>( result < 0 ) {
<a name="l00081"></a>00081 printf(<span class="stringliteral">"\nusb_control_msg failed: code: %d, %s\n"</span>, result,
<a name="l00082"></a>00082 usb_strerror());
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="keywordtype">void</span> charge(<span class="keyword">struct</span> usb_dev_handle *handle)
<a name="l00087"></a>00087 {
<a name="l00088"></a>00088 <span class="comment">// the special sauce... these steps seem to do the trick</span>
<a name="l00089"></a>00089 <span class="comment">// for the 7750 series... needs testing on others</span>
<a name="l00090"></a>00090 <span class="keywordtype">char</span> buffer[2];
<a name="l00091"></a>00091 control(handle, 0xc0, 0xa5, 0, 1, buffer, 2, 100);
<a name="l00092"></a>00092 control(handle, 0x40, 0xa2, 0, 1, buffer, 0, 100);
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="keywordtype">void</span> pearl_classic_mode(<span class="keyword">struct</span> usb_dev_handle *handle)
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 <span class="keywordtype">char</span> buffer[2];
<a name="l00098"></a>00098 <span class="comment">// use this for "old style" interface: product ID 0001</span>
<a name="l00099"></a>00099 control(handle, 0xc0, 0xa9, 0, 1, buffer, 2, 100);
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="keywordtype">void</span> pearl_dual_mode(<span class="keyword">struct</span> usb_dev_handle *handle)
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104 <span class="keywordtype">char</span> buffer[2];
<a name="l00105"></a>00105 <span class="comment">// Product ID 0004</span>
<a name="l00106"></a>00106 control(handle, 0xc0, 0xa9, 1, 1, buffer, 2, 100);
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="keywordtype">int</span> find_interface(<span class="keyword">struct</span> usb_dev_handle *handle, <span class="keywordtype">int</span> iface_class)
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <span class="comment">// search the configuration descriptor for the given class ID</span>
<a name="l00112"></a>00112 <span class="keyword">struct </span>usb_device *dev = usb_device(handle);
<a name="l00113"></a>00113 <span class="keyword">struct </span>usb_config_descriptor *cfg = dev ? dev->config : 0;
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="keywordflow">if</span>( cfg ) {
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> i = 0; cfg->interface && i < cfg->bNumInterfaces; i++ ) {
<a name="l00118"></a>00118 <span class="keyword">struct </span>usb_interface *iface = &cfg->interface[i];
<a name="l00119"></a>00119 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> a = 0; iface->altsetting && a < iface->num_altsetting; a++ ) {
<a name="l00120"></a>00120 <span class="keyword">struct </span>usb_interface_descriptor *<span class="keywordtype">id</span> = &iface->altsetting[a];
<a name="l00121"></a>00121 <span class="keywordflow">if</span>( id->bInterfaceClass == iface_class )
<a name="l00122"></a>00122 <span class="keywordflow">return</span> <span class="keywordtype">id</span>->bInterfaceNumber;
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="keywordflow">return</span> -1;
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="keywordtype">int</span> find_mass_storage_interface(<span class="keyword">struct</span> usb_dev_handle *handle)
<a name="l00131"></a>00131 {
<a name="l00132"></a>00132 <span class="keywordtype">int</span> iface = find_interface(handle, USB_CLASS_MASS_STORAGE);
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="keywordflow">if</span>( iface == -1 ) {
<a name="l00135"></a>00135 <span class="comment">// if we get here, then we didn't find the Mass Storage</span>
<a name="l00136"></a>00136 <span class="comment">// interface ... this should never happen, but if it does,</span>
<a name="l00137"></a>00137 <span class="comment">// assume the device is showing product ID 0006, and the</span>
<a name="l00138"></a>00138 <span class="comment">// Mass Storage interface is interface #0</span>
<a name="l00139"></a>00139 printf(<span class="stringliteral">"Can't find Mass Storage interface, assuming 0.\n"</span>);
<a name="l00140"></a>00140 <span class="keywordflow">return</span> 0;
<a name="l00141"></a>00141 }
<a name="l00142"></a>00142 <span class="keywordflow">else</span> {
<a name="l00143"></a>00143 <span class="keywordflow">return</span> iface;
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <span class="keywordtype">void</span> driver_conflict(<span class="keyword">struct</span> usb_dev_handle *handle)
<a name="l00148"></a>00148 {
<a name="l00149"></a>00149 <span class="comment">// this is called if the first usb_set_configuration()</span>
<a name="l00150"></a>00150 <span class="comment">// failed... this most probably means that usb_storage</span>
<a name="l00151"></a>00151 <span class="comment">// has already claimed the Mass Storage interface,</span>
<a name="l00152"></a>00152 <span class="comment">// in which case we politely tell it to go away.</span>
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="preprocessor">#if LIBUSB_HAS_DETACH_KERNEL_DRIVER_NP</span>
<a name="l00155"></a>00155 <span class="preprocessor"></span> printf(<span class="stringliteral">"Detecting possible kernel driver conflict, trying to resolve...\n"</span>);
<a name="l00156"></a>00156
<a name="l00157"></a>00157 <span class="keywordtype">int</span> iface = find_mass_storage_interface(handle);
<a name="l00158"></a>00158 <span class="keywordflow">if</span>( usb_detach_kernel_driver_np(handle, iface) < 0 )
<a name="l00159"></a>00159 printf(<span class="stringliteral">"usb_detach_kernel_driver_np() failed: %s\n"</span>, usb_strerror());
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="keywordflow">if</span>( usb_set_configuration(handle, BLACKBERRY_CONFIGURATION) < 0 )
<a name="l00162"></a>00162 printf(<span class="stringliteral">"usb_set_configuration() failed: %s\n"</span>, usb_strerror());
<a name="l00163"></a>00163 <span class="preprocessor">#endif</span>
<a name="l00164"></a>00164 <span class="preprocessor"></span>}
<a name="l00165"></a>00165
<a name="l00166"></a>00166 <span class="comment">// returns true if device mode was modified, false otherwise</span>
<a name="l00167"></a>00167 <span class="keywordtype">bool</span> process(<span class="keyword">struct</span> usb_device *dev, ModeType mode)
<a name="l00168"></a>00168 {
<a name="l00169"></a>00169 <span class="keywordtype">bool</span> apply = <span class="keyword">false</span>;
<a name="l00170"></a>00170 printf(<span class="stringliteral">"Found device #%s..."</span>, dev->filename);
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="comment">// open</span>
<a name="l00173"></a>00173 usb_dev_handle *handle = usb_open(dev);
<a name="l00174"></a>00174 <span class="keywordflow">if</span>( !handle ) {
<a name="l00175"></a>00175 printf(<span class="stringliteral">"unable to open device\n"</span>);
<a name="l00176"></a>00176 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="comment">// adjust power</span>
<a name="l00180"></a>00180 <span class="keywordflow">if</span>( dev->config &&
<a name="l00181"></a>00181 dev->descriptor.bNumConfigurations >= 1 &&
<a name="l00182"></a>00182 dev->config[0].MaxPower < 250 ) {
<a name="l00183"></a>00183 printf(<span class="stringliteral">"adjusting charge setting"</span>);
<a name="l00184"></a>00184 charge(handle);
<a name="l00185"></a>00185 apply = <span class="keyword">true</span>;
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187 <span class="keywordflow">else</span> {
<a name="l00188"></a>00188 printf(<span class="stringliteral">"already at 500mA"</span>);
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190 printf(<span class="stringliteral">"\n"</span>);
<a name="l00191"></a>00191
<a name="l00192"></a>00192 <span class="comment">// adjust Pearl mode</span>
<a name="l00193"></a>00193 <span class="keywordflow">switch</span>( mode )
<a name="l00194"></a>00194 {
<a name="l00195"></a>00195 <span class="keywordflow">case</span> NO_CHANGE:
<a name="l00196"></a>00196 printf(<span class="stringliteral">"...no Pearl mode adjustment"</span>);
<a name="l00197"></a>00197 <span class="keywordflow">break</span>;
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keywordflow">case</span> PEARL_CLASSIC_MODE_0001:
<a name="l00200"></a>00200 <span class="keywordflow">if</span>( dev->descriptor.idProduct != PRODUCT_RIM_BLACKBERRY ) {
<a name="l00201"></a>00201 printf(<span class="stringliteral">"...adjusting Pearl mode to single"</span>);
<a name="l00202"></a>00202 pearl_classic_mode(handle);
<a name="l00203"></a>00203 apply = <span class="keyword">true</span>;
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205 <span class="keywordflow">else</span> {
<a name="l00206"></a>00206 printf(<span class="stringliteral">"...already in classic/single mode"</span>);
<a name="l00207"></a>00207 }
<a name="l00208"></a>00208 <span class="keywordflow">break</span>;
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="keywordflow">case</span> PEARL_DUAL_MODE_0004:
<a name="l00211"></a>00211 <span class="keywordflow">if</span>( dev->descriptor.idProduct != PRODUCT_RIM_PEARL_DUAL ) {
<a name="l00212"></a>00212 printf(<span class="stringliteral">"...adjusting Pearl mode to dual"</span>);
<a name="l00213"></a>00213 pearl_dual_mode(handle);
<a name="l00214"></a>00214 apply = <span class="keyword">true</span>;
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216 <span class="keywordflow">else</span> {
<a name="l00217"></a>00217 printf(<span class="stringliteral">"...already in dual mode"</span>);
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219 <span class="keywordflow">break</span>;
<a name="l00220"></a>00220
<a name="l00221"></a>00221 <span class="keywordflow">case</span> CONDITIONAL_DUAL_MODE:
<a name="l00222"></a>00222 <span class="keywordflow">if</span>( find_interface(handle, 255) == -1 ) {
<a name="l00223"></a>00223 printf(<span class="stringliteral">"...no database iface found, setting dual mode"</span>);
<a name="l00224"></a>00224 pearl_dual_mode(handle);
<a name="l00225"></a>00225 apply = <span class="keyword">true</span>;
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227 <span class="keywordflow">else</span> {
<a name="l00228"></a>00228 printf(<span class="stringliteral">"...found database iface, no change"</span>);
<a name="l00229"></a>00229 }
<a name="l00230"></a>00230 <span class="keywordflow">break</span>;
<a name="l00231"></a>00231
<a name="l00232"></a>00232 <span class="keywordflow">default</span>:
<a name="l00233"></a>00233 printf(<span class="stringliteral">"Bug: default case"</span>);
<a name="l00234"></a>00234 <span class="keywordflow">break</span>;
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236 printf(<span class="stringliteral">"\n"</span>);
<a name="l00237"></a>00237
<a name="l00238"></a>00238 <span class="comment">// apply changes</span>
<a name="l00239"></a>00239 <span class="keywordflow">if</span>( apply ) {
<a name="l00240"></a>00240 <span class="keywordflow">if</span>( usb_set_configuration(handle, BLACKBERRY_CONFIGURATION) < 0 )
<a name="l00241"></a>00241 driver_conflict(handle);
<a name="l00242"></a>00242
<a name="l00243"></a>00243 <span class="comment">// the Blackberry Pearl doesn't reset itself after the above,</span>
<a name="l00244"></a>00244 <span class="comment">// so do it ourselves</span>
<a name="l00245"></a>00245 <span class="keywordflow">if</span>( mode == PEARL_DUAL_MODE_0004 ) {
<a name="l00246"></a>00246 <span class="comment">//</span>
<a name="l00247"></a>00247 <span class="comment">// It has been observed that the 8830 behaves both like</span>
<a name="l00248"></a>00248 <span class="comment">// a Pearl device (in that it has mass storage +</span>
<a name="l00249"></a>00249 <span class="comment">// database modes) as well as a Classic device in</span>
<a name="l00250"></a>00250 <span class="comment">// that it resets itself and doesn't need an explicit</span>
<a name="l00251"></a>00251 <span class="comment">// reset call.</span>
<a name="l00252"></a>00252 <span class="comment">//</span>
<a name="l00253"></a>00253 <span class="comment">// In order to deal with this, we insert a brief sleep.</span>
<a name="l00254"></a>00254 <span class="comment">// If it is an 8830, it will reset itself and the</span>
<a name="l00255"></a>00255 <span class="comment">// following reset call will fail. If it is a Pearl,</span>
<a name="l00256"></a>00256 <span class="comment">// the reset will work as normal.</span>
<a name="l00257"></a>00257 <span class="comment">//</span>
<a name="l00258"></a>00258 sleep(1);
<a name="l00259"></a>00259 <span class="keywordflow">if</span>( usb_reset(handle) < 0 ) {
<a name="l00260"></a>00260 printf(<span class="stringliteral">"\nusb_reset failed: %s\n"</span>, usb_strerror());
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263
<a name="l00264"></a>00264 printf(<span class="stringliteral">"...done"</span>);
<a name="l00265"></a>00265 }
<a name="l00266"></a>00266 <span class="keywordflow">else</span> {
<a name="l00267"></a>00267 printf(<span class="stringliteral">"...no change"</span>);
<a name="l00268"></a>00268 }
<a name="l00269"></a>00269 printf(<span class="stringliteral">"\n"</span>);
<a name="l00270"></a>00270
<a name="l00271"></a>00271 <span class="comment">// cleanup</span>
<a name="l00272"></a>00272 usb_close(handle);
<a name="l00273"></a>00273 <span class="keywordflow">return</span> apply;
<a name="l00274"></a>00274 }
<a name="l00275"></a>00275
<a name="l00276"></a>00276 <span class="keywordtype">bool</span> power_write(<span class="keyword">const</span> std::string &file, <span class="keyword">const</span> std::string &value)
<a name="l00277"></a>00277 {
<a name="l00278"></a>00278 <span class="comment">// attempt to open the state file</span>
<a name="l00279"></a>00279 <span class="keywordtype">int</span> fd = open(file.c_str(), O_RDWR);
<a name="l00280"></a>00280 <span class="keywordflow">if</span>( fd == -1 ) {
<a name="l00281"></a>00281 printf(<span class="stringliteral">"autosuspend adjustment failure: (file: %s): %s\n"</span>,
<a name="l00282"></a>00282 file.c_str(),
<a name="l00283"></a>00283 strerror(errno));
<a name="l00284"></a>00284 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00285"></a>00285 }
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <span class="keywordtype">int</span> written = write(fd, value.data(), value.size());
<a name="l00288"></a>00288 <span class="keywordtype">int</span> error = errno;
<a name="l00289"></a>00289 close(fd);
<a name="l00290"></a>00290
<a name="l00291"></a>00291 <span class="keywordflow">if</span>( written < 0 || (<span class="keywordtype">size_t</span>)written != value.size() ) {
<a name="l00292"></a>00292 printf(<span class="stringliteral">"autosuspend adjustment failure (write): (file: %s): %s\n"</span>,
<a name="l00293"></a>00293 file.c_str(),
<a name="l00294"></a>00294 strerror(error));
<a name="l00295"></a>00295 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297
<a name="l00298"></a>00298 printf(<span class="stringliteral">"autosuspend adjustment: wrote %s to %s\n"</span>,
<a name="l00299"></a>00299 value.c_str(), file.c_str());
<a name="l00300"></a>00300 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00301"></a>00301 }
<a name="l00302"></a>00302
<a name="l00303"></a>00303 <span class="comment">//</span>
<a name="l00304"></a>00304 <span class="comment">// Checks for USB suspend, and enables the device if suspended.</span>
<a name="l00305"></a>00305 <span class="comment">//</span>
<a name="l00306"></a>00306 <span class="comment">// Kernel 2.6.21 behaves with autosuspend=0 meaning off, while 2.6.22</span>
<a name="l00307"></a>00307 <span class="comment">// and higher needs autosuspend=-1 to turn it off. In 2.6.22, a value</span>
<a name="l00308"></a>00308 <span class="comment">// of 0 means "immediate" instead of "never".</span>
<a name="l00309"></a>00309 <span class="comment">//</span>
<a name="l00310"></a>00310 <span class="comment">// Version 2.6.22 adds variables internal to the system called</span>
<a name="l00311"></a>00311 <span class="comment">// autosuspend_disabled and autoresume_disabled. These are controlled by the</span>
<a name="l00312"></a>00312 <span class="comment">// /sys/class/usb_device/*/device/power/level file. (See below)</span>
<a name="l00313"></a>00313 <span class="comment">//</span>
<a name="l00314"></a>00314 <span class="comment">// Here's a summary of files under device/power. These may or may not exist</span>
<a name="l00315"></a>00315 <span class="comment">// depending on your kernel version and configuration.</span>
<a name="l00316"></a>00316 <span class="comment">//</span>
<a name="l00317"></a>00317 <span class="comment">//</span>
<a name="l00318"></a>00318 <span class="comment">// autosuspend</span>
<a name="l00319"></a>00319 <span class="comment">// -1 or 0 means off, depending on kernel,</span>
<a name="l00320"></a>00320 <span class="comment">// otherwise it is the number of seconds to</span>
<a name="l00321"></a>00321 <span class="comment">// autosuspend</span>
<a name="l00322"></a>00322 <span class="comment">//</span>
<a name="l00323"></a>00323 <span class="comment">// level</span>
<a name="l00324"></a>00324 <span class="comment">// with the settings:</span>
<a name="l00325"></a>00325 <span class="comment">//</span>
<a name="l00326"></a>00326 <span class="comment">// on - suspend is disabled, device is fully powered</span>
<a name="l00327"></a>00327 <span class="comment">// auto - suspend is controlled by the kernel (default)</span>
<a name="l00328"></a>00328 <span class="comment">// suspend - suspend is enabled permanently</span>
<a name="l00329"></a>00329 <span class="comment">//</span>
<a name="l00330"></a>00330 <span class="comment">// You can write these strings to the file to control</span>
<a name="l00331"></a>00331 <span class="comment">// behaviour on a per-device basis.</span>
<a name="l00332"></a>00332 <span class="comment">//</span>
<a name="l00333"></a>00333 <span class="comment">// echo on > /sys/usb_device/.../device/power/level</span>
<a name="l00334"></a>00334 <span class="comment">//</span>
<a name="l00335"></a>00335 <span class="comment">// state</span>
<a name="l00336"></a>00336 <span class="comment">// current state of device</span>
<a name="l00337"></a>00337 <span class="comment">// 0 - fully powered</span>
<a name="l00338"></a>00338 <span class="comment">// 2 - suspended</span>
<a name="l00339"></a>00339 <span class="comment">//</span>
<a name="l00340"></a>00340 <span class="comment">// You can write these numbers to control behaviour, but</span>
<a name="l00341"></a>00341 <span class="comment">// any change you make here might change automatically</span>
<a name="l00342"></a>00342 <span class="comment">// if autosuspend is on.</span>
<a name="l00343"></a>00343 <span class="comment">//</span>
<a name="l00344"></a>00344 <span class="comment">// echo -n 0 > /sys/usb_device/.../device/power/state</span>
<a name="l00345"></a>00345 <span class="comment">//</span>
<a name="l00346"></a>00346 <span class="comment">// wakeup</span>
<a name="l00347"></a>00347 <span class="comment">// unknown</span>
<a name="l00348"></a>00348 <span class="comment">//</span>
<a name="l00349"></a>00349 <span class="comment">//</span>
<a name="l00350"></a>00350 <span class="comment">// Given the above facts, use the following heuristics to try to disable</span>
<a name="l00351"></a>00351 <span class="comment">// autosuspend for the Blackberry:</span>
<a name="l00352"></a>00352 <span class="comment">//</span>
<a name="l00353"></a>00353 <span class="comment">// - if level exists, write "on" to it</span>
<a name="l00354"></a>00354 <span class="comment">// - if autosuspend exists, write -1 to it</span>
<a name="l00355"></a>00355 <span class="comment">// - if error, write 0 to it</span>
<a name="l00356"></a>00356 <span class="comment">// - if neither of the above work, and state exists, write 0 to it</span>
<a name="l00357"></a>00357 <span class="comment">//</span>
<a name="l00358"></a>00358 <span class="keywordtype">void</span> resume()
<a name="l00359"></a>00359 {
<a name="l00360"></a>00360 <span class="keywordflow">if</span>( udev_devpath.size() == 0 )
<a name="l00361"></a>00361 <span class="keywordflow">return</span>; <span class="comment">// nothing to do</span>
<a name="l00362"></a>00362
<a name="l00363"></a>00363 <span class="comment">// let sysfs settle a bit</span>
<a name="l00364"></a>00364 sleep(5);
<a name="l00365"></a>00365
<a name="l00366"></a>00366 std::string power_path = sysfs_path + <span class="stringliteral">"/"</span> + udev_devpath + <span class="stringliteral">"/device/power/"</span>;
<a name="l00367"></a>00367
<a name="l00368"></a>00368 <span class="keywordflow">if</span>( !power_write(power_path + <span class="stringliteral">"level"</span>, <span class="stringliteral">"on\n"</span>) )
<a name="l00369"></a>00369 <span class="keywordflow">if</span>( !power_write(power_path + <span class="stringliteral">"autosuspend"</span>, <span class="stringliteral">"-1\n"</span>) )
<a name="l00370"></a>00370 <span class="keywordflow">if</span>( !power_write(power_path + <span class="stringliteral">"autosuspend"</span>, <span class="stringliteral">"0\n"</span>) )
<a name="l00371"></a>00371 power_write(power_path + <span class="stringliteral">"state"</span>, <span class="stringliteral">"0"</span>);
<a name="l00372"></a>00372 }
<a name="l00373"></a>00373
<a name="l00374"></a>00374 <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[])
<a name="l00375"></a>00375 {
<a name="l00376"></a>00376 <span class="keyword">struct </span>usb_bus *busses;
<a name="l00377"></a>00377 ModeType mode = NO_CHANGE;
<a name="l00378"></a>00378
<a name="l00379"></a>00379 INIT_I18N(PACKAGE);
<a name="l00380"></a>00380
<a name="l00381"></a>00381 <span class="comment">//</span>
<a name="l00382"></a>00382 <span class="comment">// allow -o command line switch to choose which mode to use for</span>
<a name="l00383"></a>00383 <span class="comment">// Blackberry Pearls:</span>
<a name="l00384"></a>00384 <span class="comment">// Dual: 0004 -d</span>
<a name="l00385"></a>00385 <span class="comment">// With switch: 0001 -o</span>
<a name="l00386"></a>00386 <span class="comment">//</span>
<a name="l00387"></a>00387
<a name="l00388"></a>00388 <span class="comment">// process command line options</span>
<a name="l00389"></a>00389 <span class="keywordflow">for</span>(;;) {
<a name="l00390"></a>00390 <span class="keywordtype">int</span> cmd = getopt(argc, argv, <span class="stringliteral">"dogp:s:h"</span>);
<a name="l00391"></a>00391 <span class="keywordflow">if</span>( cmd == -1 )
<a name="l00392"></a>00392 <span class="keywordflow">break</span>;
<a name="l00393"></a>00393
<a name="l00394"></a>00394 <span class="keywordflow">switch</span>( cmd )
<a name="l00395"></a>00395 {
<a name="l00396"></a>00396 <span class="keywordflow">case</span> <span class="charliteral">'d'</span>: <span class="comment">// Dual</span>
<a name="l00397"></a>00397 mode = PEARL_DUAL_MODE_0004;
<a name="l00398"></a>00398 <span class="keywordflow">break</span>;
<a name="l00399"></a>00399
<a name="l00400"></a>00400 <span class="keywordflow">case</span> <span class="charliteral">'o'</span>: <span class="comment">// Classic style pearl</span>
<a name="l00401"></a>00401 mode = PEARL_CLASSIC_MODE_0001;
<a name="l00402"></a>00402 <span class="keywordflow">break</span>;
<a name="l00403"></a>00403
<a name="l00404"></a>00404 <span class="keywordflow">case</span> <span class="charliteral">'g'</span>: <span class="comment">// Guess whether dual is needed</span>
<a name="l00405"></a>00405 mode = CONDITIONAL_DUAL_MODE;
<a name="l00406"></a>00406 <span class="keywordflow">break</span>;
<a name="l00407"></a>00407
<a name="l00408"></a>00408 <span class="keywordflow">case</span> <span class="charliteral">'p'</span>: <span class="comment">// udev devpath</span>
<a name="l00409"></a>00409 udev_devpath = optarg;
<a name="l00410"></a>00410 <span class="keywordflow">break</span>;
<a name="l00411"></a>00411
<a name="l00412"></a>00412 <span class="keywordflow">case</span> <span class="charliteral">'s'</span>: <span class="comment">// where sysfs is mounted</span>
<a name="l00413"></a>00413 sysfs_path = optarg;
<a name="l00414"></a>00414 <span class="keywordflow">break</span>;
<a name="l00415"></a>00415
<a name="l00416"></a>00416 <span class="keywordflow">case</span> <span class="charliteral">'h'</span>: <span class="comment">// help!</span>
<a name="l00417"></a>00417 <span class="keywordflow">default</span>:
<a name="l00418"></a>00418 Usage();
<a name="l00419"></a>00419 <span class="keywordflow">return</span> 0;
<a name="l00420"></a>00420 }
<a name="l00421"></a>00421 }
<a name="l00422"></a>00422
<a name="l00423"></a>00423 usb_init();
<a name="l00424"></a>00424 <span class="keywordflow">if</span>( usb_find_busses() < 0 || usb_find_devices() < 0 ) {
<a name="l00425"></a>00425 printf(<span class="stringliteral">"\nUnable to scan devices: %s\n"</span>, usb_strerror());
<a name="l00426"></a>00426 <span class="keywordflow">return</span> 1;
<a name="l00427"></a>00427 }
<a name="l00428"></a>00428 busses = usb_get_busses();
<a name="l00429"></a>00429
<a name="l00430"></a>00430 printf(<span class="stringliteral">"Scanning for Blackberry devices...\n"</span>);
<a name="l00431"></a>00431
<a name="l00432"></a>00432 <span class="keyword">struct </span>usb_bus *bus;
<a name="l00433"></a>00433 <span class="keywordflow">for</span>( bus = busses; bus; bus = bus->next ) {
<a name="l00434"></a>00434 <span class="keyword">struct </span>usb_device *dev;
<a name="l00435"></a>00435
<a name="l00436"></a>00436 <span class="keywordflow">for</span> (dev = bus->devices; dev; dev = dev->next) {
<a name="l00437"></a>00437 <span class="comment">// Is this a blackberry?</span>
<a name="l00438"></a>00438 <span class="keywordflow">if</span>( dev->descriptor.idVendor == VENDOR_RIM ) {
<a name="l00439"></a>00439 <span class="keywordflow">if</span>( !process(dev, mode) )
<a name="l00440"></a>00440 resume();
<a name="l00441"></a>00441 }
<a name="l00442"></a>00442 }
<a name="l00443"></a>00443 }
<a name="l00444"></a>00444 }
<a name="l00445"></a>00445
</pre></div></div>
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