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<div class="headertitle"><div class="title">io_regblock.h</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Copyright (C) 2012 Technische Universität Dresden.</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Author(s): Adam Lackorzynski <adam@os.inf.tu-dresden.de></span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * License: see LICENSE.spdx (in this directory or the directories above)</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#pragma once</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceL4.html">L4</a></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span>{</div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">class </span>Io_register_block</div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> {</div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> read8(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> read16(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> read32(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="comment">/*</span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="comment"> * \brief Read register with an 8 byte access.</span></div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="comment">//virtual unsigned long long read64(unsigned long reg) const = 0;</span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span></div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> write8(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> value) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span></div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> write16(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> value) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> write32(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> value) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="comment">/*</span></div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="comment"> * \brief Write register with an 8 byte access.</span></div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="comment">//virtual void write64(unsigned long reg, unsigned long long value) const = 0;</span></div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span></div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> addr(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg) <span class="keyword">const</span> = 0;</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span></div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> delay() <span class="keyword">const</span> = 0;</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">virtual</span> ~Io_register_block() = 0;</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span></div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">template</span>< <span class="keyword">typename</span> R ></div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> R read(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keyword">static_assert</span>(<span class="keyword">sizeof</span>(R) == 1 || <span class="keyword">sizeof</span>(R) == 2 || <span class="keyword">sizeof</span>(R) == 4,</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="stringliteral">"Invalid size"</span>);</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">switch</span> (<span class="keyword">sizeof</span>(R))</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> {</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordflow">case</span> 1: <span class="keywordflow">return</span> read8(reg);</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordflow">case</span> 2: <span class="keywordflow">return</span> read16(reg);</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keywordflow">case</span> 4: <span class="keywordflow">return</span> read32(reg);</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> };</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> }</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span></div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">template</span>< <span class="keyword">typename</span> R ></div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordtype">void</span> write(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, R value)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">static_assert</span>(<span class="keyword">sizeof</span>(R) == 1 || <span class="keyword">sizeof</span>(R) == 2 || <span class="keyword">sizeof</span>(R) == 4,</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="stringliteral">"Invalid size"</span>);</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">switch</span> (<span class="keyword">sizeof</span>(R))</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> {</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">case</span> 1: write8(reg, value); <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordflow">case</span> 2: write16(reg, value); <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">case</span> 4: write32(reg, value); <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> };</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span></div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">template</span>< <span class="keyword">typename</span> R ></div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> R modify(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, R clear_bits, R set_bits)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> R r = (read<R>(reg) & ~clear_bits) | set_bits;</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> write(reg, r);</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">return</span> r;</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> }</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span></div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keyword">template</span>< <span class="keyword">typename</span> R ></div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> R set(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, R set_bits)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">return</span> modify<R>(reg, 0, set_bits);</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> }</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span></div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keyword">template</span>< <span class="keyword">typename</span> R ></div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> R clear(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, R clear_bits)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">return</span> modify<R>(reg, clear_bits, 0);</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> }</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> };</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> </div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keyword">inline</span> Io_register_block::~Io_register_block() {}</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> </div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> </div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keyword">class </span>Io_register_block_mmio : <span class="keyword">public</span> Io_register_block</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> {</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">private</span>:</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">template</span>< <span class="keyword">typename</span> R ></div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> R _read(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> *<span class="keyword">reinterpret_cast<</span><span class="keyword">volatile </span>R *<span class="keyword">></span>(_base + (reg << _shift)); }</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keyword">template</span>< <span class="keyword">typename</span> R ></div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordtype">void</span> _write(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, R val)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span><span class="keyword"> </span>{ *<span class="keyword">reinterpret_cast<</span><span class="keyword">volatile </span>R *<span class="keyword">></span>(_base + (reg << _shift)) = val; }</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> </div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> Io_register_block_mmio(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> base, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> shift = 0)</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> : _base(base), _shift(shift)</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> {}</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> </div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> addr(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _base + (reg << _shift); }</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> read8(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _read<unsigned char>(reg); }</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> read16(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _read<unsigned short>(reg); }</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> read32(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _read<unsigned int>(reg); }</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> </div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <span class="keywordtype">void</span> write8(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> val)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span><span class="keyword"> </span>{ _write(reg, val); }</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordtype">void</span> write16(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> val)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span><span class="keyword"> </span>{ _write(reg, val); }</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="keywordtype">void</span> write32(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> val)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span><span class="keyword"> </span>{ _write(reg, val); }</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> </div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordtype">void</span> delay()<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span><span class="keyword"> </span>{}</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> </div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keyword">private</span>:</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> _base;</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> _shift;</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> };</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> </div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keyword">template</span><<span class="keyword">typename</span> ACCESS_TYPE></div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keyword">class </span>Io_register_block_mmio_fixed_width : <span class="keyword">public</span> Io_register_block</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> {</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keyword">private</span>:</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keyword">template</span>< <span class="keyword">typename</span> R ></div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> R _read(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> *<span class="keyword">reinterpret_cast<</span><span class="keyword">volatile </span>ACCESS_TYPE *<span class="keyword">></span>(_base + (reg << _shift)); }</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> </div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keyword">template</span>< <span class="keyword">typename</span> R ></div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordtype">void</span> _write(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, R val)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span><span class="keyword"> </span>{ *<span class="keyword">reinterpret_cast<</span><span class="keyword">volatile </span>ACCESS_TYPE *<span class="keyword">></span>(_base + (reg << _shift)) = val; }</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> </div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> Io_register_block_mmio_fixed_width(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> base, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> shift = 0)</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> : _base(base), _shift(shift)</div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> {}</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> </div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> addr(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _base + (reg << _shift); }</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> </div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> read8(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _read<unsigned char>(reg); }</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> read16(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _read<unsigned short>(reg); }</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> read32(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span><span class="keyword"> </span>{ <span class="keywordflow">return</span> _read<unsigned int>(reg); }</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> </div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keywordtype">void</span> write8(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> val)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span><span class="keyword"> </span>{ _write(reg, val); }</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keywordtype">void</span> write16(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> val)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span><span class="keyword"> </span>{ _write(reg, val); }</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keywordtype">void</span> write32(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> reg, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> val)<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span><span class="keyword"> </span>{ _write(reg, val); }</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> </div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keywordtype">void</span> delay()<span class="keyword"> const override</span></div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span><span class="keyword"> </span>{}</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> </div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keyword">private</span>:</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> _base;</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> _shift;</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> };</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span>}</div>
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<div class="ttc" id="anamespaceL4_html"><div class="ttname"><a href="namespaceL4.html">L4</a></div><div class="ttdoc">L4 low-level kernel interface.</div><div class="ttdef"><b>Definition</b> <a href="l4sys-l4f-groups_8dox_source.html#l00050">l4sys-l4f-groups.dox:50</a></div></div>
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<li class="navelem"><b>pkg</b></li><li class="navelem"><b>drivers-frst</b></li><li class="navelem"><b>include</b></li><li class="navelem"><b>io_regblock.h</b></li>
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