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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>AVR321000 Communication with the AVR32 USART: testsuite/bravo_validation/power_manager/pm.c Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.1 --><div class="tabs"> <ul> <li><a href="main.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> <li><a href="dirs.html"><span>Directories</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul></div><div class="nav"><a class="el" href="dir_ed041fa8052270846d9a0dab17b0d151.html">testsuite</a> » <a class="el" href="dir_18e6971fa792d4606dff45a531675719.html">bravo_validation</a> » <a class="el" href="dir_ccff2bf392818c53411e9baf433c1483.html">power_manager</a></div><h1>pm.c</h1><a href="pm_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include "<a class="code" href="pm_8h.html">pm.h</a>"</span><a name="l00002"></a>00002 <a name="l00003"></a>00003 <span class="comment">/* reset all clocks and set mclk to osc0 */</span><a name="l00004"></a><a class="code" href="pm_8h.html#f4866c8d515de18a7e6438de6721af48">00004</a> <span class="keywordtype">int</span> <a class="code" href="pm_8c.html#f4866c8d515de18a7e6438de6721af48">pm_reset</a>( <span class="keywordtype">void</span> )<a name="l00005"></a>00005 {<a name="l00006"></a>00006 avr32_sm_t *sm = (<span class="keywordtype">void</span> *) AVR32_SM_ADDRESS;<a name="l00007"></a>00007 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> status = <a class="code" href="pm_8h.html#ddf49f5fed3274da72c23555bd623a3a">PM_SUCCESS</a>;<a name="l00008"></a>00008 <span class="keywordtype">int</span> disable_clock_mask = 0xFFFFffff;<a name="l00009"></a>00009 <a name="l00010"></a>00010 <a class="code" href="pm_8c.html#5ee9297ef8a710f6f1c7b3f60d6f7369">pm_set_mclk_source</a>(<a class="code" href="pm_8h.html#b6ed62883d39ae18a209e0a3dbfbeb40">PM_OSC0</a>);<a name="l00011"></a>00011 <a name="l00012"></a>00012 sm->pm_cksel = 0x00000000;<a name="l00013"></a>00013 status |= <a class="code" href="pm_8c.html#88dfe542f765ac33d0eeee7d0eff486c">pm_wait_for_lock</a>(AVR32_SM_PM_ISR_CKRDY);<a name="l00014"></a>00014 <a name="l00015"></a>00015 sm->pm_cpu_mask = disable_clock_mask;<a name="l00016"></a>00016 status |= <a class="code" href="pm_8c.html#88dfe542f765ac33d0eeee7d0eff486c">pm_wait_for_lock</a>(AVR32_SM_PM_ISR_MSKRDY);<a name="l00017"></a>00017 <a name="l00018"></a>00018 sm->pm_ahb_mask = disable_clock_mask;<a name="l00019"></a>00019 status |= <a class="code" href="pm_8c.html#88dfe542f765ac33d0eeee7d0eff486c">pm_wait_for_lock</a>(AVR32_SM_PM_ISR_MSKRDY);<a name="l00020"></a>00020 <a name="l00021"></a>00021 sm->pm_apba_mask = disable_clock_mask;<a name="l00022"></a>00022 status |= <a class="code" href="pm_8c.html#88dfe542f765ac33d0eeee7d0eff486c">pm_wait_for_lock</a>(AVR32_SM_PM_ISR_MSKRDY);<a name="l00023"></a>00023 <a name="l00024"></a>00024 sm->pm_apbb_mask = disable_clock_mask;<a name="l00025"></a>00025 status |= <a class="code" href="pm_8c.html#88dfe542f765ac33d0eeee7d0eff486c">pm_wait_for_lock</a>(AVR32_SM_PM_ISR_MSKRDY);<a name="l00026"></a>00026 <a name="l00027"></a>00027 sm->pm_ier = 0x7F; <span class="comment">/* enable all interrupts*/</span><a name="l00028"></a>00028 sm->pm_icr |= 0x7F; <span class="comment">/* clear all interrupts */</span><a name="l00029"></a>00029 <a name="l00030"></a>00030 <span class="keywordflow">return</span> status;<a name="l00031"></a>00031 }<a name="l00032"></a>00032 <a name="l00033"></a><a class="code" href="pm_8h.html#88dfe542f765ac33d0eeee7d0eff486c">00033</a> <span class="keywordtype">int</span> <a class="code" href="pm_8c.html#88dfe542f765ac33d0eeee7d0eff486c">pm_wait_for_lock</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lockbit)<a name="l00034"></a>00034 {<a name="l00035"></a>00035 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> timeout = <a class="code" href="pm_8h.html#45106cc6bf8ddde273a86bf21590cbba">PM_TIMEOUT</a>;<a name="l00036"></a>00036 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lockStatus=0;<a name="l00037"></a>00037 <a name="l00038"></a>00038 <span class="keywordflow">while</span> (!lockStatus){<a name="l00039"></a>00039 lockStatus = <a class="code" href="pm_8c.html#20b28e164b7c9bb79db19ad3c824ccfe">pm_interrupt_status</a>(lockbit);<a name="l00040"></a>00040 --timeout;<a name="l00041"></a>00041 <span class="keywordflow">if</span> (timeout==0)<a name="l00042"></a>00042 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#2912ab77316c39d156efd503931d9bd4">PM_LOCK_ERROR</a>;<a name="l00043"></a>00043 }<a name="l00044"></a>00044 <a name="l00045"></a>00045 <a class="code" href="pm_8c.html#afabed3d352c08a31e65299bf82c6f14">pm_interrupt_clear</a>(lockbit);<a name="l00046"></a>00046 <a name="l00047"></a>00047 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#ddf49f5fed3274da72c23555bd623a3a">PM_SUCCESS</a>;<a name="l00048"></a>00048 }<a name="l00049"></a>00049 <a name="l00050"></a>00050 <span class="comment">/* Modify a specific pll */</span><a name="l00051"></a><a class="code" href="pm_8h.html#7fc09cb1d5ede1dea772f8b03ee154be">00051</a> <span class="keywordtype">int</span> <a class="code" href="pm_8c.html#7fc09cb1d5ede1dea772f8b03ee154be">pm_set_pll</a>(<span class="keyword">volatile</span> <span class="keyword">struct</span> <a class="code" href="structpll__opt__t.html">pll_opt_t</a> *opt)<a name="l00052"></a>00052 {<a name="l00053"></a>00053 <span class="keyword">volatile</span> avr32_sm_t *sm = (<span class="keywordtype">void</span> *) AVR32_SM_ADDRESS;<a name="l00054"></a>00054 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pllreg, lockbit;<a name="l00055"></a>00055 <a name="l00056"></a>00056 <span class="comment">/* Ensure that mclk is driven by the current pll */</span><a name="l00057"></a>00057 <span class="keywordflow">if</span>(<a class="code" href="pm_8c.html#e8ea9de644b71bb92ab7d384f298d1d7">pm_read_mclk_source</a>()==<a class="code" href="pm_8h.html#b496d79f3a521e4335d24be892bf085a">PM_PLL0</a>)<a name="l00058"></a>00058 <a class="code" href="pm_8c.html#5ee9297ef8a710f6f1c7b3f60d6f7369">pm_set_mclk_source</a>(<a class="code" href="pm_8h.html#b6ed62883d39ae18a209e0a3dbfbeb40">PM_OSC0</a>);<a name="l00059"></a>00059 <a name="l00060"></a>00060 <span class="keywordflow">if</span> ( (opt->multiplier == 0) | (opt->divider == 0) )<a name="l00061"></a>00061 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;<a name="l00062"></a>00062 <a name="l00063"></a>00063 pllreg = (1<<AVR32_SM_PM_PLL0_PLLCOUNT_OFFSET)|(1<<AVR32_SM_PM_PLL0_PLLEN_OFFSET);<a name="l00064"></a>00064 <a name="l00065"></a>00065 <span class="comment">// add multiplier</span><a name="l00066"></a>00066 <span class="keywordflow">if</span> (opt->multiplier != 0)<a name="l00067"></a>00067 pllreg = pllreg | (((opt->multiplier) -1 ) << AVR32_SM_PLLMUL_OFFSET);<a name="l00068"></a>00068 <span class="comment">// add divider</span><a name="l00069"></a>00069 <span class="keywordflow">if</span>(opt->divider != 0)<a name="l00070"></a>00070 pllreg = pllreg | (((opt->divider) - 1) << AVR32_SM_PLLDIV_OFFSET);<a name="l00071"></a>00071 <span class="comment">// select oscillator</span><a name="l00072"></a>00072 <span class="keywordflow">if</span>(opt->oscillator <= 1)<a name="l00073"></a>00073 pllreg = pllreg | ((opt->oscillator) << AVR32_SM_PLLOSC_OFFSET);<a name="l00074"></a>00074 <a name="l00075"></a>00075 <a name="l00076"></a>00076 <span class="comment">/* CHECK FOR VALID ARGUMENTS*/</span><a name="l00077"></a>00077 <span class="keywordflow">if</span>( opt->pll == <a class="code" href="pm_8h.html#b496d79f3a521e4335d24be892bf085a">PM_PLL0</a> )<a name="l00078"></a>00078 sm->pm_pll0 = pllreg;<a name="l00079"></a>00079 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( opt->pll == <a class="code" href="pm_8h.html#c730640bba805bb63795115fdc163c7f">PM_PLL1</a> )<a name="l00080"></a>00080 sm->pm_pll1 = pllreg;<a name="l00081"></a>00081 <span class="keywordflow">else</span><a name="l00082"></a>00082 <span class="keywordflow">return</span> <a class="code" href="pm_8h.html#fb0c09824dd7de95fd1557e20c731400">PM_INVALID_ARGUMENT</a>;<a name="l00083"></a>00083 <a name="l00084"></a>00084 <span class="comment">// Get lock bit</span><a name="l00085"></a>00085 <span class="keywordflow">if</span>(opt->pll == <a class="code" href="pm_8h.html#b496d79f3a521e4335d24be892bf085a">PM_PLL0</a>){<a name="l00086"></a>00086 lockbit = AVR32_SM_PM_ISR_LOCK0;<a name="l00087"></a>00087 }<a name="l00088"></a>00088 <span class="keywordflow">else</span>{<a name="l00089"></a>00089 lockbit = AVR32_SM_PM_ISR_LOCK1;<a name="l00090"></a>00090 }<a name="l00091"></a>00091 <a name="l00092"></a>00092 <span class="keywordflow">return</span> <a class="code" href="pm_8c.html#88dfe542f765ac33d0eeee7d0eff486c">pm_wait_for_lock</a>(lockbit);<a name="l00093"></a>00093 }<a name="l00094"></a>00094 <a name="l00095"></a><a class="code" href="pm_8h.html#54166687179ae6231608317171b8d62e">00095</a> <span class="keywordtype">int</span> <a class="code" href="pm_8c.html#54166687179ae6231608317171b8d62e">pm_read_pll_frequency</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pll )<a name="l00096"></a>00096 {<a name="l00097"></a>00097 <span class="keyword">volatile</span> avr32_sm_t *sm = (<span class="keywordtype">void</span> *) AVR32_SM_ADDRESS;<a name="l00098"></a>00098 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mul,div,osc;<a name="l00099"></a>00099 <a name="l00100"></a>00100 <span class="keywordflow">if</span> ( pll==<a class="code" href="pm_8h.html#b496d79f3a521e4335d24be892bf085a">PM_PLL0</a> ){<a name="l00101"></a>00101 mul = ( (sm->pm_pll0&AVR32_SM_PM_PLL0_PLLMUL_MASK)>>AVR32_SM_PM_PLL0_PLLMUL_OFFSET)+1;<a name="l00102"></a>00102 div = ( (sm->pm_pll0&AVR32_SM_PM_PLL0_PLLDIV_MASK)>>AVR32_SM_PM_PLL0_PLLDIV_OFFSET)+1;<a name="l00103"></a>00103 <span class="keywordflow">if</span>((sm->pm_pll0&AVR32_SM_PM_PLL0_PLLOSC_MASK)>>AVR32_SM_PM_PLL0_PLLOSC_OFFSET) <span class="comment">/* Oscillator #1 */</span><a name="l00104"></a>00104 osc = <a class="code" href="pm_8h.html#6e188d537a626965bfe9b442a9e384ce">PM_OSC1_HZ</a>;<a name="l00105"></a>00105 <span class="keywordflow">else</span><a name="l00106"></a>00106 osc = <a class="code" href="pm_8h.html#c6d5b458dd5c2308f7e6cdfb96519aa4">PM_OSC0_HZ</a>;<a name="l00107"></a>00107 }<a name="l00108"></a>00108 <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( pll==<a class="code" href="pm_8h.html#c730640bba805bb63795115fdc163c7f">PM_PLL1</a> ){<a name="l00109"></a>00109 mul = ( (sm->pm_pll1&AVR32_SM_PM_PLL1_PLLMUL_MASK)>>AVR32_SM_PM_PLL1_PLLMUL_OFFSET)+1;<a name="l00110"></a>00110 div = ( (sm->pm_pll1&AVR32_SM_PM_PLL1_PLLDIV_MASK)>>AVR32_SM_PM_PLL1_PLLDIV_OFFSET)+1;<a name="l00111"></a>00111 <span class="keywordflow">if</span>((sm->pm_pll1&AVR32_SM_PM_PLL1_PLLOSC_MASK)>>AVR32_SM_PM_PLL1_PLLOSC_OFFSET) <span class="comment">/* Oscillator #1 */</span><a name="l00112"></a>00112 osc = <a class="code" href="pm_8h.html#6e188d537a626965bfe9b442a9e384ce">PM_OSC1_HZ</a>;<a name="l00113"></a>00113 <span class="keywordflow">else</span><a name="l00114"></a>00114 osc = <a class="code" href="pm_8h.html#c6d5b458dd5c2308f7e6cdfb96519aa4">PM_OSC0_HZ</a>;<a name="l00115"></a>00115 }⌨️ 快捷键说明
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