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port__m33_8c.xml

port__m33_8c.xml 12 KB
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  1. <?xml version='1.0' encoding='UTF-8' standalone='no'?>
    2. 

  2. <doxygen xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="compound.xsd" version="1.18.0" xml:lang="ja">
    3. 

  3.   <compounddef id="port__m33_8c" kind="file" language="C++">
    4. 

  4.     <compoundname>port_m33.c</compoundname>
    5. 

  5.     <includes local="no">stdint.h</includes>
    6. 

  6.     <includes local="yes">hardware/clocks.h</includes>
    7. 

  7.     <includes local="yes">hardware/structs/clocks.h</includes>
    8. 

  8.     <includes local="yes">hardware/structs/m33.h</includes>
    9. 

  9.     <includes local="yes">hardware/structs/scb.h</includes>
    10. 

  10.     <includes local="yes">hardware/structs/systick.h</includes>
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  11.     <includes refid="port__m33_8h" local="yes">port_m33.h</includes>
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    14. 

  14.         <label>C:/Users/yoneda/Documents/Pico_Projects/tinykernel/tinykernel/src/port/m33/port_m33.c</label>
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  32.         <label>port_m33.h</label>
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  33.         <link refid="port__m33_8h"/>
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    40. 

  40.         <label>hardware/clocks.h</label>
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  44.       </node>
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  46.         <label>hardware/structs/m33.h</label>
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  47.       </node>
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  49.         <label>hardware/structs/scb.h</label>
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  50.       </node>
    51. 

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  52.         <label>hardware/structs/systick.h</label>
    53. 

  53.       </node>
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  54.       <node id="2">
    55. 

  55.         <label>stdint.h</label>
    56. 

  56.       </node>
    57. 

  57.     </incdepgraph>
    58. 

  58.     <sectiondef kind="define">
    59. 

  59.       <memberdef kind="define" id="port__m33_8c_1a7b53a215b14820fae8b8e7c387f5b3b3" prot="public" static="no">
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  60.         <name>FPCCR_ASPEN</name>
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  61.         <initializer>(1u &lt;&lt; 31)</initializer>
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  62.         <briefdescription>
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  64.         <detaileddescription>
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  65.         </detaileddescription>
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  66.         <inbodydescription>
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  68.         <location file="C:/Users/yoneda/Documents/Pico_Projects/tinykernel/tinykernel/src/port/m33/port_m33.c" line="11" column="9" bodyfile="C:/Users/yoneda/Documents/Pico_Projects/tinykernel/tinykernel/src/port/m33/port_m33.c" bodystart="11" bodyend="-1"/>
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  69.       </memberdef>
    70. 

  70.       <memberdef kind="define" id="port__m33_8c_1a6addcb4c27c8943e5908a645233e4b1e" prot="public" static="no">
    71. 

  71.         <name>FPCCR_LSPEN</name>
    72. 

  72.         <initializer>(1u &lt;&lt; 30)</initializer>
    73. 

  73.         <briefdescription>
    74. 

  74.         </briefdescription>
    75. 

  75.         <detaileddescription>
    76. 

  76.         </detaileddescription>
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  77.         <inbodydescription>
    78. 

  78.         </inbodydescription>
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  79.         <location file="C:/Users/yoneda/Documents/Pico_Projects/tinykernel/tinykernel/src/port/m33/port_m33.c" line="12" column="9" bodyfile="C:/Users/yoneda/Documents/Pico_Projects/tinykernel/tinykernel/src/port/m33/port_m33.c" bodystart="12" bodyend="-1"/>
    80. 

  80.       </memberdef>
    81. 

  81.     </sectiondef>
    82. 

  82.     <sectiondef kind="func">
    83. 

  83.       <memberdef kind="function" id="port__m33_8c_1ac9d435a65b90e71074dd44f97b1103f8" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
    84. 

  84.         <type>void</type>
    85. 

  85.         <definition>void tk_port_init</definition>
    86. 

  86.         <argsstring>(uint32_t ticks_per_sec)</argsstring>
    87. 

  87.         <name>tk_port_init</name>
    88. 

  88.         <param>
    89. 

  89.           <type>uint32_t</type>
    90. 

  90.           <declname>ticks_per_sec</declname>
    91. 

  91.         </param>
    92. 

  92.         <briefdescription>
    93. 

  93.         </briefdescription>
    94. 

  94.         <detaileddescription>
    95. 

  95.         </detaileddescription>
    96. 

  96.         <inbodydescription>
    97. 

  97.         </inbodydescription>
    98. 

  98.         <location file="C:/Users/yoneda/Documents/Pico_Projects/tinykernel/tinykernel/src/port/m33/port_m33.c" line="14" column="6" bodyfile="C:/Users/yoneda/Documents/Pico_Projects/tinykernel/tinykernel/src/port/m33/port_m33.c" bodystart="14" bodyend="36"/>
    99. 

  99.       </memberdef>
    100. 

  100.     </sectiondef>
    101. 

  101.     <briefdescription>
    102. 

  102.     </briefdescription>
    103. 

  103.     <detaileddescription>
    104. 

  104.     </detaileddescription>
    105. 

  105.     <programlisting>
    106. 

  106. <codeline lineno="1"><highlight class="preprocessor">#include<sp/>&lt;stdint.h&gt;</highlight><highlight class="normal"></highlight></codeline>
    107. 

  107. <codeline lineno="2"><highlight class="normal"></highlight></codeline>
    108. 

  108. <codeline lineno="3"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;hardware/clocks.h&quot;</highlight><highlight class="normal"></highlight></codeline>
    109. 

  109. <codeline lineno="4"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;hardware/structs/clocks.h&quot;</highlight><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">//<sp/>clock_num_t<sp/>(clk_sys)</highlight><highlight class="normal"></highlight></codeline>
    110. 

  110. <codeline lineno="5"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;hardware/structs/m33.h&quot;</highlight><highlight class="normal"><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>m33_hw-&gt;fpccr<sp/>(memory-mapped<sp/>FPU<sp/>control)</highlight><highlight class="normal"></highlight></codeline>
    111. 

  111. <codeline lineno="6"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;hardware/structs/scb.h&quot;</highlight><highlight class="normal"></highlight></codeline>
    112. 

  112. <codeline lineno="7"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;hardware/structs/systick.h&quot;</highlight><highlight class="normal"></highlight></codeline>
    113. 

  113. <codeline lineno="8"><highlight class="normal"></highlight></codeline>
    114. 

  114. <codeline lineno="9"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="port__m33_8h" kindref="compound">port_m33.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
    115. 

  115. <codeline lineno="10"><highlight class="normal"></highlight></codeline>
    116. 

  116. <codeline lineno="11"><highlight class="normal"></highlight><highlight class="preprocessor">#define<sp/>FPCCR_ASPEN<sp/>(1u<sp/>&lt;&lt;<sp/>31)<sp/><sp/></highlight><highlight class="comment">//<sp/>FPU_FPCCR_ASPEN_Pos<sp/>per<sp/>CMSIS<sp/>core_cm33.h</highlight><highlight class="normal"></highlight></codeline>
    117. 

  117. <codeline lineno="12"><highlight class="normal"></highlight><highlight class="preprocessor">#define<sp/>FPCCR_LSPEN<sp/>(1u<sp/>&lt;&lt;<sp/>30)<sp/><sp/></highlight><highlight class="comment">//<sp/>FPU_FPCCR_LSPEN_Pos<sp/>per<sp/>CMSIS<sp/>core_cm33.h</highlight><highlight class="normal"></highlight></codeline>
    118. 

  118. <codeline lineno="13"><highlight class="normal"></highlight></codeline>
    119. 

  119. <codeline lineno="14"><highlight class="normal"></highlight><highlight class="keywordtype">void</highlight><highlight class="normal"><sp/><ref refid="port__m33_8c_1ac9d435a65b90e71074dd44f97b1103f8" kindref="member">tk_port_init</ref>(uint32_t<sp/>ticks_per_sec)<sp/>{</highlight></codeline>
    120. 

  120. <codeline lineno="15"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>Disable<sp/>automatic<sp/>state<sp/>preservation<sp/>and<sp/>lazy<sp/>stacking<sp/>via<sp/>FPCCR:</highlight><highlight class="normal"></highlight></codeline>
    121. 

  121. <codeline lineno="16"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>the<sp/>kernel<sp/>explicitly<sp/>saves/restores<sp/>S0-S31<sp/>in<sp/>software<sp/>on<sp/>every<sp/>switch,</highlight><highlight class="normal"></highlight></codeline>
    122. 

  122. <codeline lineno="17"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>so<sp/>hardware<sp/>must<sp/>never<sp/>push<sp/>VFP<sp/>frames<sp/>onto<sp/>task<sp/>stacks.</highlight><highlight class="normal"></highlight></codeline>
    123. 

  123. <codeline lineno="18"><highlight class="normal"><sp/><sp/><sp/><sp/>m33_hw-&gt;fpccr<sp/>=<sp/>(uint32_t)(m33_hw-&gt;fpccr<sp/>&amp;<sp/>~(<ref refid="port__m33_8c_1a7b53a215b14820fae8b8e7c387f5b3b3" kindref="member">FPCCR_ASPEN</ref><sp/>|<sp/><ref refid="port__m33_8c_1a6addcb4c27c8943e5908a645233e4b1e" kindref="member">FPCCR_LSPEN</ref>));</highlight></codeline>
    124. 

  124. <codeline lineno="19"><highlight class="normal"></highlight></codeline>
    125. 

  125. <codeline lineno="20"><highlight class="normal"><sp/><sp/><sp/><sp/>uint32_t<sp/>clk<sp/>=<sp/>clock_get_hz(clk_sys);</highlight></codeline>
    126. 

  126. <codeline lineno="21"><highlight class="normal"><sp/><sp/><sp/><sp/>systick_hw-&gt;rvr<sp/>=<sp/>((clk<sp/>+<sp/>ticks_per_sec<sp/>/<sp/>2u)<sp/>/<sp/>ticks_per_sec<sp/>-<sp/>1u)<sp/>&amp;<sp/>0x00FFFFFFu;</highlight></codeline>
    127. 

  127. <codeline lineno="22"><highlight class="normal"></highlight></codeline>
    128. 

  128. <codeline lineno="23"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>Run<sp/>PendSV<sp/>at<sp/>the<sp/>lowest<sp/>priority<sp/>(15<sp/>of<sp/>15<sp/>on<sp/>M33)<sp/>so<sp/>peripheral<sp/>ISRs</highlight><highlight class="normal"></highlight></codeline>
    129. 

  129. <codeline lineno="24"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>and<sp/>SysTick<sp/>always<sp/>preempt<sp/>it,<sp/>ensuring<sp/>context<sp/>switches<sp/>happen<sp/>only<sp/>when<sp/>all</highlight><highlight class="normal"></highlight></codeline>
    130. 

  130. <codeline lineno="25"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>higher-priority<sp/>interrupt<sp/>handling<sp/>is<sp/>complete.<sp/>SysTick<sp/>runs<sp/>at<sp/>priority<sp/>14.</highlight><highlight class="normal"></highlight></codeline>
    131. 

  131. <codeline lineno="26"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>Byte<sp/>offsets<sp/>follow<sp/>CMSIS<sp/>__NVIC_SetPriority:</highlight><highlight class="normal"></highlight></codeline>
    132. 

  132. <codeline lineno="27"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>SHPR<sp/>base<sp/>=<sp/>SCB+0x18,<sp/>byte<sp/>index<sp/>=<sp/>((IRQn)<sp/>&amp;<sp/>0xF)<sp/>-<sp/>4.</highlight><highlight class="normal"></highlight></codeline>
    133. 

  133. <codeline lineno="28"><highlight class="normal"><sp/><sp/><sp/><sp/>uint8_t*<sp/>shpr<sp/>=<sp/>(uint8_t*)&amp;scb_hw-&gt;shpr[0];</highlight></codeline>
    134. 

  134. <codeline lineno="29"><highlight class="normal"><sp/><sp/><sp/><sp/>shpr[((int32_t)(-2)<sp/>&amp;<sp/>0xF)<sp/>-<sp/>4]<sp/>=<sp/>15u<sp/>&lt;&lt;<sp/>4;<sp/><sp/></highlight><highlight class="comment">//<sp/>PendSV<sp/>(priority<sp/>15:<sp/>lowest)</highlight><highlight class="normal"></highlight></codeline>
    135. 

  135. <codeline lineno="30"><highlight class="normal"><sp/><sp/><sp/><sp/>shpr[((int32_t)(-1)<sp/>&amp;<sp/>0xF)<sp/>-<sp/>4]<sp/>=<sp/>14u<sp/>&lt;&lt;<sp/>4;<sp/><sp/></highlight><highlight class="comment">//<sp/>SysTick<sp/>(priority<sp/>14)</highlight><highlight class="normal"></highlight></codeline>
    136. 

  136. <codeline lineno="31"><highlight class="normal"></highlight></codeline>
    137. 

  137. <codeline lineno="32"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>NOTE:<sp/>SysTick<sp/>is<sp/>intentionally<sp/>NOT<sp/>enabled<sp/>here.<sp/>tk_port_start()<sp/>enables<sp/>it</highlight><highlight class="normal"></highlight></codeline>
    138. 

  138. <codeline lineno="33"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>(ENABLE|TICKINT|CLKSOURCE)<sp/>in<sp/>asm,<sp/>right<sp/>before<sp/>jumping<sp/>into<sp/>the<sp/>first<sp/>task,</highlight><highlight class="normal"></highlight></codeline>
    139. 

  139. <codeline lineno="34"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>so<sp/>a<sp/>tick<sp/>can<sp/>never<sp/>preempt<sp/>the<sp/>rest<sp/>of<sp/>tk::start()<sp/>while<sp/>scheduler<sp/>state<sp/>and</highlight><highlight class="normal"></highlight></codeline>
    140. 

  140. <codeline lineno="35"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">//<sp/>MSP<sp/>are<sp/>not<sp/>yet<sp/>established.</highlight><highlight class="normal"></highlight></codeline>
    141. 

  141. <codeline lineno="36"><highlight class="normal">}</highlight></codeline>
    142. 

  142.     </programlisting>
    143. 

  143.     <location file="C:/Users/yoneda/Documents/Pico_Projects/tinykernel/tinykernel/src/port/m33/port_m33.c"/>
    144. 

  144.   </compounddef>
    145. 

  145. </doxygen>
    146.