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 <span id="projectnumber">2.0</span>
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<div class="title">8259.c</div> </div>
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<a href="8259_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*-</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2002-2018 The UbixOS Project.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This was developed by Christopher W. Olsen for the UbixOS Project.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification, are permitted</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * provided that the following conditions are met:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 1) Redistributions of source code must retain the above copyright notice, this list of</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * conditions, the following disclaimer and the list of authors.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * 2) Redistributions in binary form must reproduce the above copyright notice, this list of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * conditions, the following disclaimer and the list of authors in the documentation and/or</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * other materials provided with the distribution.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * endorse or promote products derived from this software without specific prior written</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * permission.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="8259_8h.html">isa/8259.h</a>></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="io_8h.html">sys/io.h</a>></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="kprintf_8h.html">lib/kprintf.h</a>></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> irqMask = 0xFFFF;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  </div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="8259_8c.html#a8045101c57cc1791817412b1016794b4"> 41</a></span> <span class="keywordtype">int</span> <a class="code" href="8259_8c.html#a8045101c57cc1791817412b1016794b4">i8259_init</a>() {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a0195451428bc646f820202dc15f25d9f">mPic</a>, <a class="code" href="8259_8h.html#a543896e13206abea73704f0f87f65d7e">icw1</a>); <span class="comment">/* Initialize Master PIC */</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a7d4efc593ecc4ace3d92e1f4ee919b99">sPic</a>, <a class="code" href="8259_8h.html#a543896e13206abea73704f0f87f65d7e">icw1</a>); <span class="comment">/* Initialize Seconary PIC */</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a0195451428bc646f820202dc15f25d9f">mPic</a> + 1, <a class="code" href="8259_8h.html#a7d84962c1a1c225344a94545309f92fc">mVec</a>); <span class="comment">/* Master Interrup Vector */</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a7d4efc593ecc4ace3d92e1f4ee919b99">sPic</a> + 1, <a class="code" href="8259_8h.html#a2f7f6ebf05739e77a7c20aee806b771c">sVec</a>); <span class="comment">/* Secondary Interrupt Vector */</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a0195451428bc646f820202dc15f25d9f">mPic</a> + 1, 1 << 2); <span class="comment">/* Bitmask for cascade on IRQ 2 */</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a7d4efc593ecc4ace3d92e1f4ee919b99">sPic</a> + 1, 2); <span class="comment">/* Cascade on IRQ 2 */</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a0195451428bc646f820202dc15f25d9f">mPic</a> + 1, <a class="code" href="8259_8h.html#a16fcea0b8e8fb321710ee3fe0788b2a6">icw4</a>); <span class="comment">/* Finish Primary Initialization */</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a7d4efc593ecc4ace3d92e1f4ee919b99">sPic</a> + 1, <a class="code" href="8259_8h.html#a16fcea0b8e8fb321710ee3fe0788b2a6">icw4</a>); <span class="comment">/* Finish Seconary Initialization */</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#ab5e84ca4c143a8b9a34b575201aaffd5">mImr</a>, 0xff); <span class="comment">/* Mask All Primary Interrupts */</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a13b25eb31f4b435fdb1ed81c10b07315">sImr</a>, 0xff); <span class="comment">/* Mask All Seconary Interrupts */</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="comment">/* Print out the system info for this */</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"pic0 - Port: [0x%X]\n"</span>, <a class="code" href="8259_8h.html#a0195451428bc646f820202dc15f25d9f">mPic</a>);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"pic1 - Port: [0x%X]\n"</span>, <a class="code" href="8259_8h.html#a7d4efc593ecc4ace3d92e1f4ee919b99">sPic</a>);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">/* Return so the system knows it went well */</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> }</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
<div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="8259_8c.html#aa2757e398a25b05d82816891d135d4af"> 66</a></span> <span class="keywordtype">void</span> <a class="code" href="8259_8c.html#aa2757e398a25b05d82816891d135d4af">irqEnable_old</a>(<a class="code" href="include_2sys_2types_8h.html#af7b042408b9b104606f8a9b5035329f3">u_int16_t</a> irqNo) {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  irqMask &= ~(1 << irqNo);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">if</span> (irqNo >= 8) {</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  irqMask &= ~(1 << 2);</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a0195451428bc646f820202dc15f25d9f">mPic</a> + 1, irqMask & 0xFF);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a7d4efc593ecc4ace3d92e1f4ee919b99">sPic</a> + 1, (irqMask >> 8) & 0xFF);</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="8259_8c.html#a7d628ae64fdc8f3433b4930cefa8ae4a"> 75</a></span> <span class="keywordtype">void</span> <a class="code" href="8259_8c.html#a7d628ae64fdc8f3433b4930cefa8ae4a">irqEnable</a>(<a class="code" href="include_2sys_2types_8h.html#a281b4b5562236420969a830503b0ba19">uint16_t</a> irqNo) {</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="include_2sys_2types_8h.html#a281b4b5562236420969a830503b0ba19">uint16_t</a> port;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="include_2sys_2types_8h.html#a2aff71146ab4942b2b38860c749c4074">uint8_t</a> value;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">if</span> (irqNo < 8) {</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  port = <a class="code" href="8259_8h.html#ab5e84ca4c143a8b9a34b575201aaffd5">mImr</a>;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  port = <a class="code" href="8259_8h.html#a13b25eb31f4b435fdb1ed81c10b07315">sImr</a>;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  irqNo -= 8;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  value = <a class="code" href="io_8h.html#a77b934268de1b3ecdcf3f275413b3108">inportByte</a>(port) & ~(1 << irqNo);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(port, value);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  </div>
<div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="8259_8c.html#adda76540a4a9d97a033b99f0bc42cf0b"> 95</a></span> <span class="keywordtype">void</span> <a class="code" href="8259_8c.html#adda76540a4a9d97a033b99f0bc42cf0b">irqDisable_old</a>(<a class="code" href="include_2sys_2types_8h.html#af7b042408b9b104606f8a9b5035329f3">u_int16_t</a> irqNo) {</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  irqMask |= (1 << irqNo);</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">if</span> ((irqMask & 0xFF00) == 0xFF00) {</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  irqMask |= (1 << 2);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  }</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a0195451428bc646f820202dc15f25d9f">mPic</a> + 1, irqMask & 0xFF);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<a class="code" href="8259_8h.html#a7d4efc593ecc4ace3d92e1f4ee919b99">sPic</a> + 1, (irqMask >> 8) & 0xFF);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="8259_8c.html#ad53c4c3d65338bf63d4efd4da1cf7703"> 104</a></span> <span class="keywordtype">void</span> <a class="code" href="8259_8c.html#ad53c4c3d65338bf63d4efd4da1cf7703">irqDisable</a>(<a class="code" href="include_2sys_2types_8h.html#a281b4b5562236420969a830503b0ba19">uint16_t</a> irqNo) {</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="include_2sys_2types_8h.html#a281b4b5562236420969a830503b0ba19">uint16_t</a> port;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="include_2sys_2types_8h.html#a2aff71146ab4942b2b38860c749c4074">uint8_t</a> value;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  </div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (irqNo < 8) {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  port = <a class="code" href="8259_8h.html#ab5e84ca4c143a8b9a34b575201aaffd5">mImr</a>;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  port = <a class="code" href="8259_8h.html#a13b25eb31f4b435fdb1ed81c10b07315">sImr</a>;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  irqNo -= 8;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  value = <a class="code" href="io_8h.html#a77b934268de1b3ecdcf3f275413b3108">inportByte</a>(port) | (1 << irqNo);</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="code" href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(port, value);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> }</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  </div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment">/***</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment"> END</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment"> ***/</span></div>
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<div class="ttc" id="a8259_8h_html"><div class="ttname"><a href="8259_8h.html">8259.h</a></div></div>
<div class="ttc" id="a8259_8c_html_a7d628ae64fdc8f3433b4930cefa8ae4a"><div class="ttname"><a href="8259_8c.html#a7d628ae64fdc8f3433b4930cefa8ae4a">irqEnable</a></div><div class="ttdeci">void irqEnable(uint16_t irqNo)</div><div class="ttdef"><b>Definition:</b> <a href="8259_8c_source.html#l00075">8259.c:75</a></div></div>
<div class="ttc" id="aio_8h_html_a8acc1a06073db2e7b92ffbd00fbd0cf1"><div class="ttname"><a href="io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a></div><div class="ttdeci">void outportByte(unsigned int, unsigned char)</div><div class="ttdoc">outputut one byte to specified port</div><div class="ttdef"><b>Definition:</b> <a href="io_8c_source.html#l00072">io.c:72</a></div></div>
<div class="ttc" id="a8259_8h_html_a16fcea0b8e8fb321710ee3fe0788b2a6"><div class="ttname"><a href="8259_8h.html#a16fcea0b8e8fb321710ee3fe0788b2a6">icw4</a></div><div class="ttdeci">#define icw4</div><div class="ttdef"><b>Definition:</b> <a href="8259_8h_source.html#l00040">8259.h:40</a></div></div>
<div class="ttc" id="a8259_8c_html_adda76540a4a9d97a033b99f0bc42cf0b"><div class="ttname"><a href="8259_8c.html#adda76540a4a9d97a033b99f0bc42cf0b">irqDisable_old</a></div><div class="ttdeci">void irqDisable_old(u_int16_t irqNo)</div><div class="ttdoc">disable specified IRQ</div><div class="ttdef"><b>Definition:</b> <a href="8259_8c_source.html#l00095">8259.c:95</a></div></div>
<div class="ttc" id="a8259_8h_html_ab5e84ca4c143a8b9a34b575201aaffd5"><div class="ttname"><a href="8259_8h.html#ab5e84ca4c143a8b9a34b575201aaffd5">mImr</a></div><div class="ttdeci">#define mImr</div><div class="ttdef"><b>Definition:</b> <a href="8259_8h_source.html#l00035">8259.h:35</a></div></div>
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<div class="ttc" id="aio_8h_html_a77b934268de1b3ecdcf3f275413b3108"><div class="ttname"><a href="io_8h.html#a77b934268de1b3ecdcf3f275413b3108">inportByte</a></div><div class="ttdeci">unsigned char inportByte(unsigned int)</div><div class="ttdoc">input one byte from specified port</div><div class="ttdef"><b>Definition:</b> <a href="io_8c_source.html#l00038">io.c:38</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html_af7b042408b9b104606f8a9b5035329f3"><div class="ttname"><a href="include_2sys_2types_8h.html#af7b042408b9b104606f8a9b5035329f3">u_int16_t</a></div><div class="ttdeci">__uint16_t u_int16_t</div><div class="ttdef"><b>Definition:</b> <a href="include_2sys_2types_8h_source.html#l00052">types.h:52</a></div></div>
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<div class="ttc" id="a8259_8c_html_a8045101c57cc1791817412b1016794b4"><div class="ttname"><a href="8259_8c.html#a8045101c57cc1791817412b1016794b4">i8259_init</a></div><div class="ttdeci">int i8259_init()</div><div class="ttdoc">initialize the 8259 PIC</div><div class="ttdef"><b>Definition:</b> <a href="8259_8c_source.html#l00041">8259.c:41</a></div></div>
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<div class="ttc" id="a8259_8c_html_ad53c4c3d65338bf63d4efd4da1cf7703"><div class="ttname"><a href="8259_8c.html#ad53c4c3d65338bf63d4efd4da1cf7703">irqDisable</a></div><div class="ttdeci">void irqDisable(uint16_t irqNo)</div><div class="ttdef"><b>Definition:</b> <a href="8259_8c_source.html#l00104">8259.c:104</a></div></div>
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<div class="ttc" id="a8259_8c_html_aa2757e398a25b05d82816891d135d4af"><div class="ttname"><a href="8259_8c.html#aa2757e398a25b05d82816891d135d4af">irqEnable_old</a></div><div class="ttdeci">void irqEnable_old(u_int16_t irqNo)</div><div class="ttdoc">enable specified IRQ</div><div class="ttdef"><b>Definition:</b> <a href="8259_8c_source.html#l00066">8259.c:66</a></div></div>
<div class="ttc" id="a8259_8h_html_a7d84962c1a1c225344a94545309f92fc"><div class="ttname"><a href="8259_8h.html#a7d84962c1a1c225344a94545309f92fc">mVec</a></div><div class="ttdeci">#define mVec</div><div class="ttdef"><b>Definition:</b> <a href="8259_8h_source.html#l00041">8259.h:41</a></div></div>
<div class="ttc" id="a8259_8h_html_a2f7f6ebf05739e77a7c20aee806b771c"><div class="ttname"><a href="8259_8h.html#a2f7f6ebf05739e77a7c20aee806b771c">sVec</a></div><div class="ttdeci">#define sVec</div><div class="ttdef"><b>Definition:</b> <a href="8259_8h_source.html#l00042">8259.h:42</a></div></div>
<div class="ttc" id="aio_8h_html"><div class="ttname"><a href="io_8h.html">io.h</a></div></div>
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