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<h1>sysdep.c</h1><a href="sysdep_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 
00010 <span class="comment">/* $Progeny$</span>
00011 <span class="comment"> *</span>
00012 <span class="comment"> * AUTHOR: John R. Daily &lt;jdaily@progeny.com&gt;</span>
00013 <span class="comment"> *</span>
00014 <span class="comment"> * Copyright 2002 Progeny Linux Systems, Inc.</span>
00015 <span class="comment"> *</span>
00016 <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span>
00017 <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span>
00018 <span class="comment"> * to deal in the Software without restriction, including without limitation</span>
00019 <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span>
00020 <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span>
00021 <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span>
00022 <span class="comment"> *</span>
00023 <span class="comment"> * The above copyright notice and this permission notice shall be included in</span>
00024 <span class="comment"> * all copies or substantial portions of the Software.</span>
00025 <span class="comment"> *</span>
00026 <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span>
00027 <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span>
00028 <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL</span>
00029 <span class="comment"> * THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span>
00030 <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span>
00031 <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span>
00032 <span class="comment"> * DEALINGS IN THE SOFTWARE.</span>
00033 <span class="comment"> */</span>
00034 <span class="preprocessor">#include &lt;assert.h&gt;</span>
00035 
00036 <span class="preprocessor">#include &lt;stdio.h&gt;</span>
00037 <span class="preprocessor">#include &lt;string.h&gt;</span>
00038 
00039 <span class="preprocessor">#include &lt;<a class="code" href="discover_8h.html">discover/discover.h</a>&gt;</span>
00040 <span class="preprocessor">#include &lt;<a class="code" href="discover-conf_8h.html">discover/discover-conf.h</a>&gt;</span>
00041 <span class="preprocessor">#include &lt;<a class="code" href="discover-xml_8h.html">discover/discover-xml.h</a>&gt;</span>
00042 <span class="preprocessor">#include &lt;<a class="code" href="sysdep_8h.html">discover/sysdep.h</a>&gt;</span>
00043 
00044 <span class="preprocessor">#include &lt;discover/device.h&gt;</span>
00045 <span class="preprocessor">#include &lt;discover/utils.h&gt;</span>
00046 
00047 
<a name="l00049"></a><a class="code" href="sysdep_8c.html#a0">00049</a> <span class="keyword">typedef</span> <a class="code" href="structdiscover__sysdep__data.html">discover_sysdep_data_t</a> *(<a class="code" href="sysdep_8c.html#a0">raw_sysdep_function_t</a>)(void);
00050 
00051 <span class="keyword">static</span> <a class="code" href="sysdep_8c.html#a0">raw_sysdep_function_t</a> *raw_map[] = {
00052     <a class="code" href="group__sysdeps.html#ga0">_discover_get_ata_raw</a>,
00053     <a class="code" href="group__sysdeps.html#ga1">_discover_get_pci_raw</a>,
00054     <a class="code" href="group__sysdeps.html#ga2">_discover_get_pcmcia_raw</a>,
00055     <a class="code" href="group__sysdeps.html#ga3">_discover_get_scsi_raw</a>,
00056     <a class="code" href="group__sysdeps.html#ga4">_discover_get_usb_raw</a>
00057 };
00058 
00059 
00060 <span class="comment">/*</span>
00061 <span class="comment"> * Utility functions</span>
00062 <span class="comment"> */</span>
00063 
00065 <a class="code" href="structdiscover__sysdep__data.html">discover_sysdep_data_t</a> *
<a name="l00066"></a><a class="code" href="sysdep_8h.html#a2">00066</a> <a class="code" href="sysdep_8c.html#a3">_discover_sysdep_data_new</a>(<span class="keywordtype">void</span>)
00067 {
00068     <a class="code" href="structdiscover__sysdep__data.html">discover_sysdep_data_t</a> *node =
00069         _discover_xmalloc(<span class="keyword">sizeof</span>(<a class="code" href="structdiscover__sysdep__data.html">discover_sysdep_data_t</a>));
00070     node-&gt;<a class="code" href="structdiscover__sysdep__data.html#o0">busclass</a> = NULL;
00071     node-&gt;<a class="code" href="structdiscover__sysdep__data.html#o1">vendor</a> = NULL;
00072     node-&gt;<a class="code" href="structdiscover__sysdep__data.html#o2">model</a> = NULL;
00073     node-&gt;<a class="code" href="structdiscover__sysdep__data.html#o3">data</a> = NULL;
00074     node-&gt;<a class="code" href="structdiscover__sysdep__data.html#o4">next</a> = NULL;
00075     <span class="keywordflow">return</span> node;
00076 }
00077 
00079 <a class="code" href="structdiscover__sysdep__device__data.html">discover_sysdep_device_data_t</a> *
<a name="l00080"></a><a class="code" href="sysdep_8h.html#a3">00080</a> <a class="code" href="sysdep_8c.html#a4">_discover_sysdep_device_data_new</a>(<span class="keywordtype">void</span>)
00081 {
00082     <a class="code" href="structdiscover__sysdep__device__data.html">discover_sysdep_device_data_t</a> *node =
00083         _discover_xmalloc(<span class="keyword">sizeof</span>(<a class="code" href="structdiscover__sysdep__device__data.html">discover_sysdep_device_data_t</a>));
00084     node-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o0">path</a> = NULL;
00085     node-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o1">value</a> = NULL;
00086     node-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o2">next</a> = NULL;
00087     <span class="keywordflow">return</span> node;
00088 }
00089 
00091 <span class="keywordtype">void</span>
<a name="l00092"></a><a class="code" href="sysdep_8h.html#a4">00092</a> <a class="code" href="sysdep_8c.html#a5">_discover_free_sysdep_data</a>(<a class="code" href="structdiscover__sysdep__data.html">discover_sysdep_data_t</a> *head)
00093 {
00094     <a class="code" href="structdiscover__sysdep__data.html">discover_sysdep_data_t</a> *node;
00095 
00096     <span class="keywordflow">while</span> (head) {
00097         node = head-&gt;<a class="code" href="structdiscover__sysdep__data.html#o4">next</a>;
00098         <span class="keywordflow">if</span> (head-&gt;<a class="code" href="structdiscover__sysdep__data.html#o1">vendor</a>) {
00099             free(head-&gt;<a class="code" href="structdiscover__sysdep__data.html#o1">vendor</a>);
00100         }
00101         <span class="keywordflow">if</span> (head-&gt;<a class="code" href="structdiscover__sysdep__data.html#o2">model</a>) {
00102             free(head-&gt;<a class="code" href="structdiscover__sysdep__data.html#o2">model</a>);
00103         }
00104         <span class="keywordflow">if</span> (head-&gt;<a class="code" href="structdiscover__sysdep__data.html#o0">busclass</a>) {
00105             free(head-&gt;<a class="code" href="structdiscover__sysdep__data.html#o0">busclass</a>);
00106         }
00107         <span class="keywordflow">if</span> (head-&gt;<a class="code" href="structdiscover__sysdep__data.html#o3">data</a>) {
00108             <a class="code" href="sysdep_8c.html#a6">_discover_free_sysdep_device_data</a>(head-&gt;<a class="code" href="structdiscover__sysdep__data.html#o3">data</a>);
00109         }
00110         free(head);
00111         head = node;
00112     }
00113 }
00114 
00116 <span class="keywordtype">void</span>
<a name="l00117"></a><a class="code" href="sysdep_8h.html#a5">00117</a> <a class="code" href="sysdep_8c.html#a6">_discover_free_sysdep_device_data</a>(<a class="code" href="structdiscover__sysdep__device__data.html">discover_sysdep_device_data_t</a> *head)
00118 {
00119     <a class="code" href="structdiscover__sysdep__device__data.html">discover_sysdep_device_data_t</a> *node;
00120     <span class="keywordflow">while</span> (head) {
00121         node = head-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o2">next</a>;
00122         <span class="keywordflow">if</span> (head-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o0">path</a>) {
00123             free(head-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o0">path</a>);
00124         }
00125         <span class="keywordflow">if</span> (head-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o1">value</a>) {
00126             free(head-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o1">value</a>);
00127         }
00128         free(head);
00129         head = node;
00130     }
00131 }
00132 
00134 <a class="code" href="group__types.html#ga4">discover_data_t</a> *
<a name="l00135"></a><a class="code" href="sysdep_8c.html#a7">00135</a> <a class="code" href="sysdep_8c.html#a7">_discover_convert_device_data</a>(<a class="code" href="structdiscover__sysdep__device__data.html">discover_sysdep_device_data_t</a> *head)
00136 {
00137     <a class="code" href="group__types.html#ga4">discover_data_t</a> *data_head, *data_current, *data_new;
00138     <a class="code" href="structdiscover__sysdep__device__data.html">discover_sysdep_device_data_t</a> *node;
00139     <span class="keywordtype">char</span> *buffer, *path, *token;
00140 
00142     data_head = <a class="code" href="group__device.html#ga13">discover_data_new</a>();
00143     data_head-&gt;discover_class = _discover_xstrdup(<span class="stringliteral">"device"</span>);
00144 
00145     <span class="comment">/*</span>
00146 <span class="comment">     * Step through the device data nodes returned by the sysdeps.</span>
00147 <span class="comment">     * Each node will have a path relative to the "device" toplevel,</span>
00148 <span class="comment">     * separated by slashes, as well as a value.  We need to set</span>
00149 <span class="comment">     * each one up to look like it came from the XML data.</span>
00150 <span class="comment">     */</span>
00151     <span class="keywordflow">for</span> (node = head; node; node = head-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o2">next</a>) {
00153         data_current = NULL;
00154 
00156         path = _discover_xstrdup(node-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o0">path</a>);
00157         buffer = _discover_xstrdup(node-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o0">path</a>);
00158 
00160         <span class="keywordflow">for</span> (token = strtok_r(path, <span class="stringliteral">"/"</span>, &amp;buffer); token;
00161              token = strtok_r(NULL, <span class="stringliteral">"/"</span>, &amp;buffer)) {
00163             data_new = <a class="code" href="group__device.html#ga13">discover_data_new</a>();
00164             data_new-&gt;discover_class = _discover_xstrdup(token);
00165 
00167             <span class="keywordflow">if</span> (data_current == NULL) {
00169                 <span class="keywordflow">if</span> (data_head-&gt;child == NULL) {
00170                     data_head-&gt;child = data_new;
00171                 } <span class="keywordflow">else</span> {
00172                     data_current = data_head-&gt;child;
00173                     <span class="keywordflow">while</span> (data_current-&gt;next)
00174                         data_current = data_current-&gt;next;
00175                     data_current-&gt;next = data_new;
00176                 }
00177             } <span class="keywordflow">else</span> {
00179                 data_current-&gt;child = data_new;
00180                 data_new-&gt;parent = data_current;
00181             }
00182 
00183             data_current = data_new;
00184         }
00185 
00186         <span class="comment">/*</span>
00187 <span class="comment">         * We've gotten to the very last path element; set the </span>
00188 <span class="comment">         * node's value here.</span>
00189 <span class="comment">         */</span>
00190         data_current-&gt;text = _discover_xstrdup(node-&gt;<a class="code" href="structdiscover__sysdep__device__data.html#o1">value</a>);
00191 
00193         free(path);
00194         free(buffer);
00195     }
00196 
00197     <span class="keywordflow">return</span> data_head;
00198 }
00199 
00200 <span class="comment">/*</span>
00201 <span class="comment"> * Functions that access the sysdeps</span>
00202 <span class="comment"> */</span>
00203 <span class="keyword">static</span> <a class="code" href="group__types.html#ga3">discover_device_t</a> *devices[<a class="code" href="group__types.html#ga14">BUS_COUNT</a>];
00204 
00205 <a class="code" href="group__types.html#ga3">discover_device_t</a> *
<a name="l00206"></a><a class="code" href="discover_8h.html#a33">00206</a> <a class="code" href="sysdep_8c.html#a8">discover_get_devices</a>(<a class="code" href="group__types.html#ga16">discover_bus_t</a> bus, <a class="code" href="structdiscover__error.html">discover_error_t</a> *status)
00207 {
00208     <a class="code" href="group__types.html#ga3">discover_device_t</a> *device, *last;
00209     <a class="code" href="group__types.html#ga3">discover_device_t</a> *xml_devices;
00210     <a class="code" href="structdiscover__bus__map.html">discover_bus_map_t</a> *busmap;
00211     <a class="code" href="structdiscover__sysdep__data.html">discover_sysdep_data_t</a> *head, *node;
00212     <a class="code" href="group__types.html#ga4">discover_data_t</a> *data_head, *data_node;
00213 
00214     assert(status);
00215 
00216     status-&gt;<a class="code" href="structdiscover__error.html#o0">code</a> = <a class="code" href="group__types.html#gga15a15">DISCOVER_SUCCESS</a>;
00217     device = last = NULL;
00218 
00219     busmap = <a class="code" href="group__conf.html#ga4">discover_conf_get_bus_map</a>(bus, status);
00220     <span class="keywordflow">if</span> (status-&gt;<a class="code" href="structdiscover__error.html#o0">code</a> != 0) {
00221         <span class="keywordflow">return</span> NULL;
00222     }
00223 
00224     <span class="keywordflow">if</span> (busmap-&gt;<a class="code" href="structdiscover__bus__map.html#o2">scan_never</a>) {
00225         status-&gt;<a class="code" href="structdiscover__error.html#o0">code</a> = <a class="code" href="group__types.html#gga15a19">DISCOVER_EBUSDISABLED</a>;
00226         <span class="keywordflow">return</span> NULL;
00227     }
00228 
00229     <span class="keywordflow">if</span> (devices[bus]) {
00230         <span class="keywordflow">return</span> devices[bus];
00231     }
00232 
00233     xml_devices = <a class="code" href="group__device__xml.html#ga1">discover_xml_get_devices</a>(bus, status);
00234     <span class="keywordflow">if</span> (!xml_devices) {
00235         <span class="keywordflow">return</span> NULL;
00236     }
00237 
00238     <span class="comment">/*</span>
00239 <span class="comment">     * Allow overrides of this function.</span>
00240 <span class="comment">     */</span>
00241     <span class="keywordflow">if</span> (busmap-&gt;<a class="code" href="structdiscover__bus__map.html#o3">get_raw</a>) {
00242         head = node = busmap-&gt;<a class="code" href="structdiscover__bus__map.html#o3">get_raw</a>();
00243     } <span class="keywordflow">else</span> {
00244         head = node = raw_map[bus]();
00245     }
00246 
00247     <span class="keywordflow">while</span> (node) {
00248         <span class="comment">/*</span>
00249 <span class="comment">         * The variable names are ambiguous:</span>
00250 <span class="comment">         *   node   -  Hardware data retrieved from the OS</span>
00251 <span class="comment">         *   device -  Matching hardware data from our database</span>
00252 <span class="comment">         */</span>
00253         device =
00254             <a class="code" href="group__device__xml.html#ga5">discover_xml_get_matching_devices</a>(xml_devices, node-&gt;vendor,
00255                                               node-&gt;model, status);
00256 
00257         <span class="keywordflow">if</span> (!device) {
00258             device = <a class="code" href="group__device.html#ga22">discover_device_new</a>();
00259             device-&gt;model_id = strdup(node-&gt;model);
00260             device-&gt;vendor_id = strdup(node-&gt;vendor);
00261         }
00262 
00263         <span class="comment">/*</span>
00264 <span class="comment">         * If we get a busclass from the hardware, treat it as</span>
00265 <span class="comment">         * canonical.</span>
00266 <span class="comment">         */</span>
00267         <span class="keywordflow">if</span> (node-&gt;busclass != NULL) {
00268             <span class="keywordflow">if</span> (device-&gt;busclass != NULL) {
00269                 free(device-&gt;busclass);
00270             }
00271             device-&gt;busclass = strdup(node-&gt;busclass);
00272         }
00273 
00274         <span class="comment">/* Add sysdep data to the data nodes. */</span>
00275         <span class="keywordflow">if</span> (node-&gt;data != NULL) {
00276             data_head = <a class="code" href="sysdep_8c.html#a7">_discover_convert_device_data</a>(node-&gt;data);
00277             <span class="keywordflow">if</span> (data_head != NULL) {
00278                 <span class="keywordflow">for</span> (data_node = data_head; data_node-&gt;next != NULL; 
00279                      data_node = data_node-&gt;next) ;
00280                 data_node-&gt;next = device-&gt;data;
00281                 device-&gt;data = data_head;
00282             }
00283         }
00284 
00285         <span class="keywordflow">if</span> (last) {
00286             last-&gt;next = device;
00287             last = device;
00288         } <span class="keywordflow">else</span> {
00289             devices[bus] = last = device;
00290         }
00291 
00292         node = node-&gt;next;
00293     }
00294 
00295     <a class="code" href="sysdep_8c.html#a5">_discover_free_sysdep_data</a>(head);
00296 
00297     <span class="keywordflow">return</span> devices[bus];
00298 }
00299 
00300 <span class="keywordtype">void</span>
<a name="l00301"></a><a class="code" href="discover_8h.html#a34">00301</a> <a class="code" href="sysdep_8c.html#a9">discover_free_devices</a>(<span class="keywordtype">void</span>)
00302 {
00303     <span class="keywordtype">int</span> i;
00304 
00305     <span class="keywordflow">for</span> (i = 0; i &lt; <a class="code" href="group__types.html#ga14">BUS_COUNT</a>; i++) {
00306         <a class="code" href="group__device.html#ga23">discover_device_free</a>(devices[i], 0);
00307         devices[i] = NULL;
00308     }
00309 }
00310 
00311 <span class="comment">/*</span>
00312 <span class="comment"> * Local variables:</span>
00313 <span class="comment"> * c-file-style: "progeny"</span>
00314 <span class="comment"> * indent-tabs-mode: nil</span>
00315 <span class="comment"> * End:</span>
00316 <span class="comment"> */</span>
00317 <span class="comment">/* vim: set cin fo=tcroq sw=4 et sts=4 tw=75: */</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Jul 28 03:38:00 2005 for discover by&nbsp;
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