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avr32100.zip Embedded demo

<a name="l00253"></a>00253                 new_settings = 0x00;
<a name="l00254"></a>00254         }
<a name="l00255"></a>00255 
<a name="l00256"></a>00256         <span class="comment">// Division is to be used</span>
<a name="l00257"></a>00257         <span class="keywordflow">else</span> <span class="keywordflow">if</span> (opt-&gt;div_enable == 1) {
<a name="l00258"></a>00258                 new_settings = 1&lt;&lt;AVR32_SM_PM_CKSEL_CPUDIV;
<a name="l00259"></a>00259                 new_settings |= ((opt-&gt;divider)-1);
<a name="l00260"></a>00260         }
<a name="l00261"></a>00261 
<a name="l00262"></a>00262         <span class="comment">// Error. div_enable &gt;1</span>
<a name="l00263"></a>00263         <span class="keywordflow">else</span>
<a name="l00264"></a>00264                 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00265"></a>00265 
<a name="l00266"></a>00266         sm-&gt;pm_cksel &amp;=  ~((AVR32_SM_PM_CKSEL_CPUDIV_MASK|AVR32_SM_PM_CKSEL_CPUSEL_MASK)&lt;&lt;offset);
<a name="l00267"></a>00267     sm-&gt;pm_cksel |= (new_settings&lt;&lt;offset);
<a name="l00268"></a>00268 
<a name="l00269"></a>00269         <a class="code" href="pm_8c.html#88dfe542f765ac33d0eeee7d0eff486c">pm_wait_for_lock</a>(AVR32_SM_PM_ISR_CKRDY);
<a name="l00270"></a>00270 
<a name="l00271"></a>00271         <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#ddf49f5fed3274da72c23555bd623a3a">PM_SUCCESS</a>;
<a name="l00272"></a>00272 
<a name="l00273"></a>00273 } <span class="comment">/* End pm_set_clock_domain_scaler() */</span>
<a name="l00274"></a>00274 
<a name="l00275"></a>00275 <span class="comment">/* Return the value of the scaling register */</span>
<a name="l00276"></a><a class="code" href="pm_8h.html#bc44409660aa80132fb1f45546fbc5da">00276</a> <span class="keywordtype">int</span> <a class="code" href="pm_8c.html#bc44409660aa80132fb1f45546fbc5da">pm_read_scaling_register</a>(<span class="keywordtype">void</span>)
<a name="l00277"></a>00277 {
<a name="l00278"></a>00278         <span class="keyword">volatile</span> avr32_sm_t *sm = (<span class="keywordtype">void</span> *) AVR32_SM_ADDRESS;
<a name="l00279"></a>00279 
<a name="l00280"></a>00280         <span class="keywordflow">return</span> sm-&gt;pm_cksel;
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282 
<a name="l00283"></a>00283 <span class="comment">/* Start a single module clock part of a clock domain */</span>
<a name="l00284"></a><a class="code" href="pm_8h.html#2f081788f7a9e4fa5f5c7f25e4de4e5f">00284</a> <span class="keywordtype">int</span> <a class="code" href="pm_8c.html#2f081788f7a9e4fa5f5c7f25e4de4e5f">pm_unmask_module_clock</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> clock )
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286         avr32_sm_t *sm = (<span class="keywordtype">void</span> *)AVR32_SM_ADDRESS;
<a name="l00287"></a>00287 
<a name="l00288"></a>00288         <span class="keywordflow">switch</span> (clock % 32){
<a name="l00289"></a>00289                 <span class="keywordflow">case</span> <a class="code" href="pm_8h.html#660a07fbf3323532394666f5b39bda94">PM_CPU_DOMAIN</a>:
<a name="l00290"></a>00290                         <span class="comment">/* Check whether the clock is out of bounds */</span>
<a name="l00291"></a>00291                         <span class="keywordflow">if</span>( (clock/32) &gt; <a class="code" href="pm_8h.html#6e110b8efe145a8ef4fb35999f7ad83e">PM_CPU_DOMAIN_SIZE</a> )
<a name="l00292"></a>00292                                 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00293"></a>00293                         <span class="keywordflow">else</span>{
<a name="l00294"></a>00294                                 sm-&gt;pm_cpu_mask |= ( 1&lt;&lt;(clock/32) );
<a name="l00295"></a>00295                                 <span class="keywordflow">break</span>;
<a name="l00296"></a>00296                         }
<a name="l00297"></a>00297                 <span class="keywordflow">case</span> <a class="code" href="pm_8h.html#37e9895746ca50f3d86ad22f910e744c">PM_AHB_DOMAIN</a>:
<a name="l00298"></a>00298                         <span class="comment">/* Check whether the clock is out of bounds */</span>
<a name="l00299"></a>00299                         <span class="keywordflow">if</span>( (clock/32) &gt; <a class="code" href="pm_8h.html#965750632e6f396fb98e878ebc597b70">PM_AHB_DOMAIN_SIZE</a> )
<a name="l00300"></a>00300                                 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00301"></a>00301                         <span class="keywordflow">else</span>{
<a name="l00302"></a>00302                                 sm-&gt;pm_ahb_mask |= ( 1&lt;&lt;(clock/32) );
<a name="l00303"></a>00303                                 <span class="keywordflow">break</span>;
<a name="l00304"></a>00304                         }
<a name="l00305"></a>00305                 <span class="keywordflow">case</span> <a class="code" href="pm_8h.html#1d81d3d60bfe377c184d6f2920459e0b">PM_APBA_DOMAIN</a>:
<a name="l00306"></a>00306                         <span class="comment">/* Check whether the clock is out of bounds */</span>
<a name="l00307"></a>00307                         <span class="keywordflow">if</span>( (clock/32) &gt; <a class="code" href="pm_8h.html#a8ba5e045b46a678d2e3fea5fdd4300e">PM_APBA_DOMAIN_SIZE</a> )
<a name="l00308"></a>00308                                 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00309"></a>00309                         <span class="keywordflow">else</span>{
<a name="l00310"></a>00310                                 sm-&gt;pm_apba_mask |= ( 1&lt;&lt;(clock/32) );
<a name="l00311"></a>00311                                 <span class="keywordflow">break</span>;
<a name="l00312"></a>00312                         }
<a name="l00313"></a>00313                 <span class="keywordflow">case</span> <a class="code" href="pm_8h.html#8581f5aa9839b0f01556facfd429a105">PM_APBB_DOMAIN</a>:
<a name="l00314"></a>00314                         <span class="comment">/* Check whether the clock is out of bounds */</span>
<a name="l00315"></a>00315                         <span class="keywordflow">if</span>( (clock/32) &gt; <a class="code" href="pm_8h.html#b6351df2a6b41d90b2d256af8fd5787b">PM_APBB_DOMAIN_SIZE</a> )
<a name="l00316"></a>00316                                 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00317"></a>00317                         <span class="keywordflow">else</span>{
<a name="l00318"></a>00318                                 sm-&gt;pm_apbb_mask |= ( 1&lt;&lt;(clock/32) );
<a name="l00319"></a>00319                                 <span class="keywordflow">break</span>;
<a name="l00320"></a>00320                         }
<a name="l00321"></a>00321                 <span class="keywordflow">default</span>:
<a name="l00322"></a>00322                         <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00323"></a>00323         }
<a name="l00324"></a>00324         <span class="keywordflow">return</span> 0;
<a name="l00325"></a>00325 } <span class="comment">/* End pm_start_clock() */</span>
<a name="l00326"></a>00326 
<a name="l00327"></a>00327 
<a name="l00328"></a>00328 
<a name="l00329"></a>00329 <span class="comment">/* Stop a single module clock part of a clock domain */</span>
<a name="l00330"></a><a class="code" href="pm_8h.html#6dcc904e4f90e35995f911bea6dc7f84">00330</a> <span class="keywordtype">int</span> <a class="code" href="pm_8c.html#6dcc904e4f90e35995f911bea6dc7f84">pm_mask_module_clock</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> clock )
<a name="l00331"></a>00331 {
<a name="l00332"></a>00332         avr32_sm_t *sm = (<span class="keywordtype">void</span> *)AVR32_SM_ADDRESS;
<a name="l00333"></a>00333 
<a name="l00334"></a>00334         <span class="keywordflow">switch</span> (clock % 32){
<a name="l00335"></a>00335                 <span class="keywordflow">case</span> <a class="code" href="pm_8h.html#660a07fbf3323532394666f5b39bda94">PM_CPU_DOMAIN</a>:
<a name="l00336"></a>00336                         <span class="comment">/* Check whether the clock is out of bounds */</span>
<a name="l00337"></a>00337                         <span class="keywordflow">if</span>( (clock/32) &gt; <a class="code" href="pm_8h.html#6e110b8efe145a8ef4fb35999f7ad83e">PM_CPU_DOMAIN_SIZE</a> )
<a name="l00338"></a>00338                                 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00339"></a>00339                         <span class="keywordflow">else</span>{
<a name="l00340"></a>00340                                 sm-&gt;pm_cpu_mask &amp;= ~( 1&lt;&lt;(clock/32) );
<a name="l00341"></a>00341                                 <span class="keywordflow">break</span>;
<a name="l00342"></a>00342                         }
<a name="l00343"></a>00343                 <span class="keywordflow">case</span> <a class="code" href="pm_8h.html#37e9895746ca50f3d86ad22f910e744c">PM_AHB_DOMAIN</a>:
<a name="l00344"></a>00344                         <span class="comment">/* Check whether the clock is out of bounds */</span>
<a name="l00345"></a>00345                         <span class="keywordflow">if</span>( (clock/32) &gt; <a class="code" href="pm_8h.html#965750632e6f396fb98e878ebc597b70">PM_AHB_DOMAIN_SIZE</a> )
<a name="l00346"></a>00346                                 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00347"></a>00347                         <span class="keywordflow">else</span>{
<a name="l00348"></a>00348                                 sm-&gt;pm_ahb_mask &amp;= ~( 1&lt;&lt;(clock/32) );
<a name="l00349"></a>00349                                 <span class="keywordflow">break</span>;
<a name="l00350"></a>00350                         }
<a name="l00351"></a>00351                 <span class="keywordflow">case</span> <a class="code" href="pm_8h.html#1d81d3d60bfe377c184d6f2920459e0b">PM_APBA_DOMAIN</a>:
<a name="l00352"></a>00352                         <span class="comment">/* Check whether the clock is out of bounds */</span>
<a name="l00353"></a>00353                         <span class="keywordflow">if</span>( (clock/32) &gt; <a class="code" href="pm_8h.html#a8ba5e045b46a678d2e3fea5fdd4300e">PM_APBA_DOMAIN_SIZE</a> )
<a name="l00354"></a>00354                                 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00355"></a>00355                         <span class="keywordflow">else</span>{
<a name="l00356"></a>00356                                 sm-&gt;pm_apba_mask &amp;= ~( 1&lt;&lt;(clock/32) );
<a name="l00357"></a>00357                                 <span class="keywordflow">break</span>;
<a name="l00358"></a>00358                         }
<a name="l00359"></a>00359                 <span class="keywordflow">case</span> <a class="code" href="pm_8h.html#8581f5aa9839b0f01556facfd429a105">PM_APBB_DOMAIN</a>:
<a name="l00360"></a>00360                         <span class="comment">/* Check whether the clock is out of bounds */</span>
<a name="l00361"></a>00361                         <span class="keywordflow">if</span>( (clock/32) &gt; <a class="code" href="pm_8h.html#b6351df2a6b41d90b2d256af8fd5787b">PM_APBB_DOMAIN_SIZE</a> )
<a name="l00362"></a>00362                                 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00363"></a>00363                         <span class="keywordflow">else</span>{
<a name="l00364"></a>00364                                 sm-&gt;pm_apbb_mask &amp;= ~( 1&lt;&lt;(clock/32) );
<a name="l00365"></a>00365                                 <span class="keywordflow">break</span>;
<a name="l00366"></a>00366                         }
<a name="l00367"></a>00367                 <span class="keywordflow">default</span>:
<a name="l00368"></a>00368                         <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;
<a name="l00369"></a>00369         }
<a name="l00370"></a>00370         <span class="keywordflow">return</span> 0;
<a name="l00371"></a>00371 } <span class="comment">/* End pm_stop_clock */</span>
<a name="l00372"></a>00372 
<a name="l00373"></a>00373 <span class="comment">/* Unmask all module clocks */</span>
<a name="l00374"></a><a class="code" href="pm_8h.html#90f52d7e0db672c11076d656b9f351f3">00374</a> <span class="keywordtype">void</span> <a class="code" href="pm_8c.html#90f52d7e0db672c11076d656b9f351f3">pm_unmask_all_module_clocks</a> ( <span class="keywordtype">void</span> )
<a name="l00375"></a>00375 {
<a name="l00376"></a>00376         avr32_sm_t *sm = (<span class="keywordtype">void</span> *)AVR32_SM_ADDRESS;
<a name="l00377"></a>00377 
<a name="l00378"></a>00378         sm-&gt;pm_cpu_mask = 0x00000000;
<a name="l00379"></a>00379         sm-&gt;pm_ahb_mask = 0x00000000;
<a name="l00380"></a>00380         sm-&gt;pm_apba_mask = 0x00000000;
<a name="l00381"></a>00381         sm-&gt;pm_apbb_mask = 0x00000000;
<a name="l00382"></a>00382         <a class="code" href="pm_8c.html#88dfe542f765ac33d0eeee7d0eff486c">pm_wait_for_lock</a>(AVR32_SM_PM_ISR_MSKRDY);
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384 
<a name="l00385"></a>00385 <span class="comment">/* Mask all module clocks */</span>
<a name="l00386"></a><a class="code" href="pm_8h.html#aa4fa6d81997d76edd9f0fa07ba7ddb8">00386</a> <span class="keywordtype">void</span> <a class="code" href="pm_8c.html#aa4fa6d81997d76edd9f0fa07ba7ddb8">pm_mask_all_module_clocks</a> ( <span class="keywordtype">void</span> )
<a name="l00387"></a>00387 {
<a name="l00388"></a>00388         avr32_sm_t *sm = (<span class="keywordtype">void</span> *)AVR32_SM_ADDRESS;
<a name="l00389"></a>00389