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<h1>drv_mouse.v</h1> </div>
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<a href="drv__mouse_8v.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="keyword">/*</span>
<a name="l00002"></a>00002 <span class="keyword"> Copyright 2010, Aleksander Osman, alfik@poczta.fm. All rights reserved.</span>
<a name="l00003"></a>00003 <span class="keyword"> </span>
<a name="l00004"></a>00004 <span class="keyword"> Redistribution and use in source and binary forms, with or without modification, are</span>
<a name="l00005"></a>00005 <span class="keyword"> permitted provided that the following conditions are met:</span>
<a name="l00006"></a>00006 <span class="keyword"> </span>
<a name="l00007"></a>00007 <span class="keyword"> 1. Redistributions of source code must retain the above copyright notice, this list of</span>
<a name="l00008"></a>00008 <span class="keyword"> conditions and the following disclaimer.</span>
<a name="l00009"></a>00009 <span class="keyword"> </span>
<a name="l00010"></a>00010 <span class="keyword"> 2. Redistributions in binary form must reproduce the above copyright notice, this list</span>
<a name="l00011"></a>00011 <span class="keyword"> of conditions and the following disclaimer in the documentation and/or other materials</span>
<a name="l00012"></a>00012 <span class="keyword"> provided with the distribution.</span>
<a name="l00013"></a>00013 <span class="keyword"> </span>
<a name="l00014"></a>00014 <span class="keyword"> THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED</span>
<a name="l00015"></a>00015 <span class="keyword"> WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND</span>
<a name="l00016"></a>00016 <span class="keyword"> FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR</span>
<a name="l00017"></a>00017 <span class="keyword"> CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span>
<a name="l00018"></a>00018 <span class="keyword"> CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR</span>
<a name="l00019"></a>00019 <span class="keyword"> SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON</span>
<a name="l00020"></a>00020 <span class="keyword"> ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING</span>
<a name="l00021"></a>00021 <span class="keyword"> NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF</span>
<a name="l00022"></a>00022 <span class="keyword"> ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00023"></a>00023 <span class="keyword"> */</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="keyword">/*! \file</span>
<a name="l00026"></a>00026 <span class="keyword"> \brief PS/2 mouse driver.</span>
<a name="l00027"></a>00027 <span class="keyword"> */</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="keyword">/*! \brief \copybrief drv_mouse.v</span>
<a name="l00030"></a>00030 <span class="keyword">*/</span>
<a name="l00031"></a><a class="code" href="classdrv__mouse.html">00031</a> <span class="vhdlkeyword">module</span> <a class="code" href="classdrv__mouse.html">drv_mouse</a>(
<a name="l00032"></a>00032 <span class="keyword">//% \name Clock and reset
</span>
<a name="l00033"></a>00033 <span class="keyword">//% @{</span>
<a name="l00034"></a><a class="code" href="classdrv__mouse.html#a9d384b26cce32f3113a602e3ce9942ac">00034</a> <span class="vhdlkeyword">input</span> <a class="code" href="classdrv__mouse.html#a9d384b26cce32f3113a602e3ce9942ac">clk_30</a>,
<a name="l00035"></a><a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">00035</a> <span class="vhdlkeyword">input</span> <a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a>,
<a name="l00036"></a>00036 <span class="keyword">//% @}</span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="keyword">//% \name drv_keyboard interface
</span>
<a name="l00039"></a>00039 <span class="keyword">//% @{</span>
<a name="l00040"></a><a class="code" href="classdrv__mouse.html#a094f3449c1933821d95881b3b2a3f12d">00040</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classdrv__mouse.html#a094f3449c1933821d95881b3b2a3f12d">mouse_moved</a>,
<a name="l00041"></a><a class="code" href="classdrv__mouse.html#a2891cda659c8582d9b73ef8674aafc7b">00041</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">8</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#a2891cda659c8582d9b73ef8674aafc7b">mouse_y_move</a>,
<a name="l00042"></a><a class="code" href="classdrv__mouse.html#ab8618daeef64bc9852837b4eb36d2472">00042</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">8</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#ab8618daeef64bc9852837b4eb36d2472">mouse_x_move</a>,
<a name="l00043"></a><a class="code" href="classdrv__mouse.html#aa3e6a44e1cfb05c4aca876d93480cea1">00043</a> <span class="vhdlkeyword">output</span> <a class="code" href="classdrv__mouse.html#aa3e6a44e1cfb05c4aca876d93480cea1">mouse_left_button</a>,
<a name="l00044"></a><a class="code" href="classdrv__mouse.html#a5d2c90a52b10f2ee711ccafeafe8682f">00044</a> <span class="vhdlkeyword">output</span> <a class="code" href="classdrv__mouse.html#a5d2c90a52b10f2ee711ccafeafe8682f">mouse_right_button</a>,
<a name="l00045"></a><a class="code" href="classdrv__mouse.html#a79178cc0f7325f16d3aa3b099f5a51be">00045</a> <span class="vhdlkeyword">output</span> <a class="code" href="classdrv__mouse.html#a79178cc0f7325f16d3aa3b099f5a51be">mouse_middle_button</a>,
<a name="l00046"></a>00046 <span class="keyword">//% @}</span>
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">//% \name PS/2 mouse hardware interface
</span>
<a name="l00049"></a>00049 <span class="keyword">//% @{</span>
<a name="l00050"></a><a class="code" href="classdrv__mouse.html#a5a18eb50070bafcb9bfd2b3937486281">00050</a> <span class="vhdlkeyword">inout</span> <a class="code" href="classdrv__mouse.html#a5a18eb50070bafcb9bfd2b3937486281">ps2_mouseclk</a>,
<a name="l00051"></a><a class="code" href="classdrv__mouse.html#a6a1e839aabe9b2d66aa3b689841d6700">00051</a> <span class="vhdlkeyword">inout</span> <a class="code" href="classdrv__mouse.html#a6a1e839aabe9b2d66aa3b689841d6700">ps2_mousedat</a>
<a name="l00052"></a>00052 <span class="keyword">//% @}</span>
<a name="l00053"></a>00053 );
<a name="l00054"></a>00054 <span class="vhdlkeyword">assign</span> <a class="code" href="classdrv__mouse.html#a5a18eb50070bafcb9bfd2b3937486281">ps2_mouseclk</a> = (<a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> >= <span class="vhdllogic">12'd1</span> && <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> < <span class="vhdllogic">12'd4000</span>) ? <span class="vhdllogic">1'b0</span> : <span class="vhdllogic">1'bZ</span>;
<a name="l00055"></a>00055 <span class="vhdlkeyword">assign</span> <a class="code" href="classdrv__mouse.html#a6a1e839aabe9b2d66aa3b689841d6700">ps2_mousedat</a> = (<a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> >= <span class="vhdllogic">12'd4000</span> && <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> <= <span class="vhdllogic">12'd4009</span>) ? <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a>[<span class="vhdllogic">0</span>] : <span class="vhdllogic">1'bZ</span>;
<a name="l00056"></a>00056
<a name="l00057"></a><a class="code" href="classdrv__mouse.html#ae2d0fb765873c0ed68e4aa8c60945e30">00057</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#ae2d0fb765873c0ed68e4aa8c60945e30">mv</a>;
<a name="l00058"></a><a class="code" href="classdrv__mouse.html#ac9710db152f414627502f002d9face2c">00058</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classdrv__mouse.html#ac9710db152f414627502f002d9face2c">mv_wait</a>;
<a name="l00059"></a><a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">00059</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">was_ps2_mouseclk</a>;
<a name="l00060"></a><a class="code" href="classdrv__mouse.html#a3e09f5b520bb995811bddbb14cfea965">00060</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classdrv__mouse.html#a9d384b26cce32f3113a602e3ce9942ac">clk_30</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a>) <span class="vhdlkeyword">begin</span>
<a name="l00061"></a>00061 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00062"></a>00062 <a class="code" href="classdrv__mouse.html#ae2d0fb765873c0ed68e4aa8c60945e30">mv</a> <= <span class="vhdllogic">16'd0</span>;
<a name="l00063"></a>00063 <a class="code" href="classdrv__mouse.html#ac9710db152f414627502f002d9face2c">mv_wait</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00064"></a>00064 <a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">was_ps2_mouseclk</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00065"></a>00065 <span class="vhdlkeyword">end</span>
<a name="l00066"></a>00066 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
<a name="l00067"></a>00067 <a class="code" href="classdrv__mouse.html#ae2d0fb765873c0ed68e4aa8c60945e30">mv</a> <= { <a class="code" href="classdrv__mouse.html#ae2d0fb765873c0ed68e4aa8c60945e30">mv</a>[<span class="vhdllogic">14</span>:<span class="vhdllogic">0</span>], <a class="code" href="classdrv__mouse.html#a5a18eb50070bafcb9bfd2b3937486281">ps2_mouseclk</a> };
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#ac9710db152f414627502f002d9face2c">mv_wait</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classdrv__mouse.html#ae2d0fb765873c0ed68e4aa8c60945e30">mv</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">12</span>] == <span class="vhdllogic">4'b1111</span> && <a class="code" href="classdrv__mouse.html#ae2d0fb765873c0ed68e4aa8c60945e30">mv</a>[<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">4'b0000</span>) <span class="vhdlkeyword">begin</span>
<a name="l00070"></a>00070 <a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">was_ps2_mouseclk</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00071"></a>00071 <a class="code" href="classdrv__mouse.html#ac9710db152f414627502f002d9face2c">mv_wait</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00072"></a>00072 <span class="vhdlkeyword">end</span>
<a name="l00073"></a>00073 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#ac9710db152f414627502f002d9face2c">mv_wait</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classdrv__mouse.html#ae2d0fb765873c0ed68e4aa8c60945e30">mv</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">16'h0000</span>) <span class="vhdlkeyword">begin</span>
<a name="l00074"></a>00074 <a class="code" href="classdrv__mouse.html#ac9710db152f414627502f002d9face2c">mv_wait</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00075"></a>00075 <a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">was_ps2_mouseclk</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00076"></a>00076 <span class="vhdlkeyword">end</span>
<a name="l00077"></a>00077 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
<a name="l00078"></a>00078 <a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">was_ps2_mouseclk</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00079"></a>00079 <span class="vhdlkeyword">end</span>
<a name="l00080"></a>00080 <span class="vhdlkeyword">end</span>
<a name="l00081"></a>00081 <span class="vhdlkeyword">end</span>
<a name="l00082"></a>00082
<a name="l00083"></a><a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">00083</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a>;
<a name="l00084"></a><a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">00084</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">9</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a>;
<a name="l00085"></a><a class="code" href="classdrv__mouse.html#a306f9845ddea039eeae2c15a8c26dc2f">00085</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classdrv__mouse.html#a9d384b26cce32f3113a602e3ce9942ac">clk_30</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a>) <span class="vhdlkeyword">begin</span>
<a name="l00086"></a>00086 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00087"></a>00087 <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> <= <span class="vhdllogic">12'd0</span>;
<a name="l00088"></a>00088 <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a> <= <span class="vhdllogic">10'd0</span>;
<a name="l00089"></a>00089 <span class="vhdlkeyword">end</span>
<a name="l00090"></a>00090 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#abc84365f9b67f7c0c1bc71f24aa0ec1e">send_start</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00091"></a>00091 <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> <= <span class="vhdllogic">12'd1</span>;
<a name="l00092"></a>00092 <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a> <= <a class="code" href="classdrv__mouse.html#a1e917caa38542b416521db59e2d1f054">send_contents</a>;
<a name="l00093"></a>00093 <span class="vhdlkeyword">end</span>
<a name="l00094"></a>00094 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> > <span class="vhdllogic">12'd0</span> && <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> < <span class="vhdllogic">12'd4000</span>) <span class="vhdlkeyword">begin</span>
<a name="l00095"></a>00095 <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> <= <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> + <span class="vhdllogic">12'd1</span>;
<a name="l00096"></a>00096 <span class="vhdlkeyword">end</span>
<a name="l00097"></a>00097 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> >= <span class="vhdllogic">12'd4000</span> && <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> <= <span class="vhdllogic">12'd4009</span> && <a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">was_ps2_mouseclk</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00098"></a>00098 <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> <= <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> + <span class="vhdllogic">12'd1</span>;
<a name="l00099"></a>00099 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> <= <span class="vhdllogic">12'd4007</span>) <span class="vhdlkeyword">begin</span>
<a name="l00100"></a>00100 <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a> <= { <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a>[<span class="vhdllogic">9</span>] ^ <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a>[<span class="vhdllogic">0</span>], <span class="vhdllogic">1'b0</span>, <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a>[<span class="vhdllogic">8</span>:<span class="vhdllogic">1</span>] };
<a name="l00101"></a>00101 <span class="vhdlkeyword">end</span>
<a name="l00102"></a>00102 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> == <span class="vhdllogic">12'd4008</span>) <span class="vhdlkeyword">begin</span>
<a name="l00103"></a>00103 <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a> <= { <span class="vhdllogic">9'd0</span>, <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a>[<span class="vhdllogic">9</span>] ^ <a class="code" href="classdrv__mouse.html#a65fc4f8249cd41d6d6268a7a02977115">send_shift</a>[<span class="vhdllogic">0</span>] };
<a name="l00104"></a>00104 <span class="vhdlkeyword">end</span>
<a name="l00105"></a>00105 <span class="vhdlkeyword">end</span>
<a name="l00106"></a>00106 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> == <span class="vhdllogic">12'd4010</span> && <a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">was_ps2_mouseclk</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00107"></a>00107 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a6a1e839aabe9b2d66aa3b689841d6700">ps2_mousedat</a> == <span class="vhdllogic">1'b0</span>) <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> <= <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> + <span class="vhdllogic">12'd1</span>;
<a name="l00108"></a>00108 <span class="vhdlkeyword">end</span>
<a name="l00109"></a>00109 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> == <span class="vhdllogic">12'd4011</span> && <a class="code" href="classdrv__mouse.html#a5a18eb50070bafcb9bfd2b3937486281">ps2_mouseclk</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classdrv__mouse.html#a6a1e839aabe9b2d66aa3b689841d6700">ps2_mousedat</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00110"></a>00110 <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> <= <span class="vhdllogic">12'd0</span>;
<a name="l00111"></a>00111 <span class="vhdlkeyword">end</span>
<a name="l00112"></a>00112 <span class="vhdlkeyword">end</span>
<a name="l00113"></a>00113
<a name="l00114"></a><a class="code" href="classdrv__mouse.html#abc84365f9b67f7c0c1bc71f24aa0ec1e">00114</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classdrv__mouse.html#abc84365f9b67f7c0c1bc71f24aa0ec1e">send_start</a>;
<a name="l00115"></a><a class="code" href="classdrv__mouse.html#a1e917caa38542b416521db59e2d1f054">00115</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">9</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#a1e917caa38542b416521db59e2d1f054">send_contents</a>;
<a name="l00116"></a><a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">00116</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">23</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a>;
<a name="l00117"></a><a class="code" href="classdrv__mouse.html#a59fec9dd8032a2437498d8b1f0578aec">00117</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classdrv__mouse.html#a9d384b26cce32f3113a602e3ce9942ac">clk_30</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a>) <span class="vhdlkeyword">begin</span>
<a name="l00118"></a>00118 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00119"></a>00119 <a class="code" href="classdrv__mouse.html#abc84365f9b67f7c0c1bc71f24aa0ec1e">send_start</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00120"></a>00120 <a class="code" href="classdrv__mouse.html#a1e917caa38542b416521db59e2d1f054">send_contents</a> <= <span class="vhdllogic">10'd0</span>;
<a name="l00121"></a>00121 <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> <= <span class="vhdllogic">24'd0</span>;
<a name="l00122"></a>00122 <span class="vhdlkeyword">end</span>
<a name="l00123"></a>00123 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> < <span class="vhdllogic">24'hFFFFF0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00124"></a>00124 <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> <= <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> + <span class="vhdllogic">16'd1</span>;
<a name="l00125"></a>00125 <span class="vhdlkeyword">end</span>
<a name="l00126"></a>00126 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> == <span class="vhdllogic">24'hFFFFF0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00127"></a>00127 <a class="code" href="classdrv__mouse.html#a1e917caa38542b416521db59e2d1f054">send_contents</a> <= { <span class="vhdllogic">1'b1</span>, <span class="vhdllogic">8'hF4</span>, <span class="vhdllogic">1'b0</span> };
<a name="l00128"></a>00128 <a class="code" href="classdrv__mouse.html#abc84365f9b67f7c0c1bc71f24aa0ec1e">send_start</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00129"></a>00129 <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> <= <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> + <span class="vhdllogic">24'd1</span>;
<a name="l00130"></a>00130 <span class="vhdlkeyword">end</span>
<a name="l00131"></a>00131 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> == <span class="vhdllogic">24'hFFFFF1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00132"></a>00132 <a class="code" href="classdrv__mouse.html#abc84365f9b67f7c0c1bc71f24aa0ec1e">send_start</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00133"></a>00133 <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> <= <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> + <span class="vhdllogic">24'd1</span>;
<a name="l00134"></a>00134 <span class="vhdlkeyword">end</span>
<a name="l00135"></a>00135 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> == <span class="vhdllogic">24'hFFFFF2</span> && <a class="code" href="classdrv__mouse.html#a4d63eb29f8df208a45010fc5fe22e246">send_counter</a> == <span class="vhdllogic">12'd0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00136"></a>00136 <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> <= <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> + <span class="vhdllogic">24'd1</span>;
<a name="l00137"></a>00137 <span class="vhdlkeyword">end</span>
<a name="l00138"></a>00138 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> == <span class="vhdllogic">24'hFFFFF3</span> && <a class="code" href="classdrv__mouse.html#a1894eb5d2aaa7cf89dd823d86dafd711">new_ps2</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classdrv__mouse.html#af43ace7c3608705dd5fba3418495acab">mousedat</a>[<span class="vhdllogic">8</span>:<span class="vhdllogic">1</span>] == <span class="vhdllogic">8'hFA</span>) <span class="vhdlkeyword">begin</span>
<a name="l00139"></a>00139 <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> <= <span class="vhdllogic">24'hFFFFFF</span>;
<a name="l00140"></a>00140 <span class="vhdlkeyword">end</span>
<a name="l00141"></a>00141 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> == <span class="vhdllogic">24'hFFFFFF</span> && (<a class="code" href="classdrv__mouse.html#a25e71425d2ce25a3cfb0e6f17a25fc9c">mousedat_timeout</a> == <span class="vhdllogic">24'hFFFFFF</span> || <a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">movement_timeout</a> == <span class="vhdllogic">24'hFFFFFF</span>)) <span class="vhdlkeyword">begin</span>
<a name="l00142"></a>00142 <a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> <= <span class="vhdllogic">24'h0</span>;
<a name="l00143"></a>00143 <span class="vhdlkeyword">end</span>
<a name="l00144"></a>00144 <span class="vhdlkeyword">end</span>
<a name="l00145"></a>00145
<a name="l00146"></a><a class="code" href="classdrv__mouse.html#a1894eb5d2aaa7cf89dd823d86dafd711">00146</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classdrv__mouse.html#a1894eb5d2aaa7cf89dd823d86dafd711">new_ps2</a>;
<a name="l00147"></a>00147 <span class="vhdlkeyword">assign</span> <a class="code" href="classdrv__mouse.html#a1894eb5d2aaa7cf89dd823d86dafd711">new_ps2</a> = (<a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">was_ps2_mouseclk</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> == <span class="vhdllogic">4'd10</span> && <a class="code" href="classdrv__mouse.html#af43ace7c3608705dd5fba3418495acab">mousedat</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b0</span> && <a class="code" href="classdrv__mouse.html#a6a1e839aabe9b2d66aa3b689841d6700">ps2_mousedat</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classdrv__mouse.html#aa76b4a04c9578f22cdb6c8b108bdb130">mousedat_parity</a> == <span class="vhdllogic">1'b1</span>);
<a name="l00148"></a>00148
<a name="l00149"></a><a class="code" href="classdrv__mouse.html#af43ace7c3608705dd5fba3418495acab">00149</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">9</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#af43ace7c3608705dd5fba3418495acab">mousedat</a>;
<a name="l00150"></a><a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">00150</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a>;
<a name="l00151"></a><a class="code" href="classdrv__mouse.html#a25e71425d2ce25a3cfb0e6f17a25fc9c">00151</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">23</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#a25e71425d2ce25a3cfb0e6f17a25fc9c">mousedat_timeout</a>;
<a name="l00152"></a><a class="code" href="classdrv__mouse.html#aa76b4a04c9578f22cdb6c8b108bdb130">00152</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classdrv__mouse.html#aa76b4a04c9578f22cdb6c8b108bdb130">mousedat_parity</a>;
<a name="l00153"></a>00153
<a name="l00154"></a><a class="code" href="classdrv__mouse.html#a0ad02a10389ed209844416a388b18640">00154</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classdrv__mouse.html#a9d384b26cce32f3113a602e3ce9942ac">clk_30</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a>) <span class="vhdlkeyword">begin</span>
<a name="l00155"></a>00155 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00156"></a>00156 <a class="code" href="classdrv__mouse.html#af43ace7c3608705dd5fba3418495acab">mousedat</a> <= <span class="vhdllogic">10'd0</span>;
<a name="l00157"></a>00157 <a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> <= <span class="vhdllogic">4'd0</span>;
<a name="l00158"></a>00158 <a class="code" href="classdrv__mouse.html#aa76b4a04c9578f22cdb6c8b108bdb130">mousedat_parity</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00159"></a>00159 <a class="code" href="classdrv__mouse.html#a25e71425d2ce25a3cfb0e6f17a25fc9c">mousedat_timeout</a> <= <span class="vhdllogic">24'd0</span>;
<a name="l00160"></a>00160 <span class="vhdlkeyword">end</span>
<a name="l00161"></a>00161 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> >= <span class="vhdllogic">24'hFFFFF3</span> && <a class="code" href="classdrv__mouse.html#a25e71425d2ce25a3cfb0e6f17a25fc9c">mousedat_timeout</a> != <span class="vhdllogic">24'hFFFFFF</span>) <span class="vhdlkeyword">begin</span>
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> != <span class="vhdllogic">4'd0</span>) <a class="code" href="classdrv__mouse.html#a25e71425d2ce25a3cfb0e6f17a25fc9c">mousedat_timeout</a> <= <a class="code" href="classdrv__mouse.html#a25e71425d2ce25a3cfb0e6f17a25fc9c">mousedat_timeout</a> + <span class="vhdllogic">24'd1</span>;
<a name="l00164"></a>00164 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> == <span class="vhdllogic">4'd0</span>) <a class="code" href="classdrv__mouse.html#a25e71425d2ce25a3cfb0e6f17a25fc9c">mousedat_timeout</a> <= <span class="vhdllogic">24'd0</span>;
<a name="l00165"></a>00165
<a name="l00166"></a>00166 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a7c5f546d48d4a6f14e7003204b4c317e">was_ps2_mouseclk</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00167"></a>00167 <a class="code" href="classdrv__mouse.html#af43ace7c3608705dd5fba3418495acab">mousedat</a> <= { <a class="code" href="classdrv__mouse.html#a6a1e839aabe9b2d66aa3b689841d6700">ps2_mousedat</a>, <a class="code" href="classdrv__mouse.html#af43ace7c3608705dd5fba3418495acab">mousedat</a>[<span class="vhdllogic">9</span>:<span class="vhdllogic">1</span>] };
<a name="l00168"></a>00168
<a name="l00169"></a>00169 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> == <span class="vhdllogic">4'd10</span>) <span class="vhdlkeyword">begin</span>
<a name="l00170"></a>00170 <a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> <= <span class="vhdllogic">4'd0</span>;
<a name="l00171"></a>00171 <span class="vhdlkeyword">end</span>
<a name="l00172"></a>00172 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
<a name="l00173"></a>00173 <a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> <= <a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> + <span class="vhdllogic">4'd1</span>;
<a name="l00174"></a>00174 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> == <span class="vhdllogic">4'd0</span>) <a class="code" href="classdrv__mouse.html#aa76b4a04c9578f22cdb6c8b108bdb130">mousedat_parity</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00175"></a>00175 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a6a1e839aabe9b2d66aa3b689841d6700">ps2_mousedat</a> == <span class="vhdllogic">1'b1</span>) <a class="code" href="classdrv__mouse.html#aa76b4a04c9578f22cdb6c8b108bdb130">mousedat_parity</a> <= ~<a class="code" href="classdrv__mouse.html#aa76b4a04c9578f22cdb6c8b108bdb130">mousedat_parity</a>;
<a name="l00176"></a>00176 <span class="vhdlkeyword">end</span>
<a name="l00177"></a>00177 <span class="vhdlkeyword">end</span>
<a name="l00178"></a>00178 <span class="vhdlkeyword">end</span>
<a name="l00179"></a>00179 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
<a name="l00180"></a>00180 <a class="code" href="classdrv__mouse.html#af43ace7c3608705dd5fba3418495acab">mousedat</a> <= <span class="vhdllogic">10'd0</span>;
<a name="l00181"></a>00181 <a class="code" href="classdrv__mouse.html#a0e6bf9f76b9169308322b9af010703c3">mousedat_counter</a> <= <span class="vhdllogic">4'd0</span>;
<a name="l00182"></a>00182 <a class="code" href="classdrv__mouse.html#aa76b4a04c9578f22cdb6c8b108bdb130">mousedat_parity</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00183"></a>00183 <a class="code" href="classdrv__mouse.html#a25e71425d2ce25a3cfb0e6f17a25fc9c">mousedat_timeout</a> <= <span class="vhdllogic">24'd0</span>;
<a name="l00184"></a>00184 <span class="vhdlkeyword">end</span>
<a name="l00185"></a>00185 <span class="vhdlkeyword">end</span>
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="vhdlkeyword">assign</span> <a class="code" href="classdrv__mouse.html#a2891cda659c8582d9b73ef8674aafc7b">mouse_y_move</a> = (<a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">23</span>] == <span class="vhdllogic">1'b0</span>)? { <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">21</span>], <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] } : <span class="vhdllogic">9'd0</span>;
<a name="l00188"></a>00188 <span class="vhdlkeyword">assign</span> <a class="code" href="classdrv__mouse.html#ab8618daeef64bc9852837b4eb36d2472">mouse_x_move</a> = (<a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">22</span>] == <span class="vhdllogic">1'b0</span>)? { <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">20</span>], <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>] } : <span class="vhdllogic">9'd0</span>;
<a name="l00189"></a>00189 <span class="vhdlkeyword">assign</span> <a class="code" href="classdrv__mouse.html#aa3e6a44e1cfb05c4aca876d93480cea1">mouse_left_button</a> = <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">16</span>];
<a name="l00190"></a>00190 <span class="vhdlkeyword">assign</span> <a class="code" href="classdrv__mouse.html#a5d2c90a52b10f2ee711ccafeafe8682f">mouse_right_button</a> = <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">17</span>];
<a name="l00191"></a>00191 <span class="vhdlkeyword">assign</span> <a class="code" href="classdrv__mouse.html#a79178cc0f7325f16d3aa3b099f5a51be">mouse_middle_button</a> = <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">18</span>];
<a name="l00192"></a>00192
<a name="l00193"></a><a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">00193</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">movement_counter</a>;
<a name="l00194"></a><a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">00194</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">23</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>;
<a name="l00195"></a><a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">00195</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">23</span>:<span class="vhdllogic">0</span>] <a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">movement_timeout</a>;
<a name="l00196"></a>00196
<a name="l00197"></a><a class="code" href="classdrv__mouse.html#a8394740a6202ee0b3ad22bf9a0efd24c">00197</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classdrv__mouse.html#a9d384b26cce32f3113a602e3ce9942ac">clk_30</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a>) <span class="vhdlkeyword">begin</span>
<a name="l00198"></a>00198 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#ad072cf63605a675e6360788f66ef0a27">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span>
<a name="l00199"></a>00199 <a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">movement_counter</a> <= <span class="vhdllogic">2'd0</span>;
<a name="l00200"></a>00200 <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a> <= <span class="vhdllogic">24'd0</span>;
<a name="l00201"></a>00201 <a class="code" href="classdrv__mouse.html#a094f3449c1933821d95881b3b2a3f12d">mouse_moved</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00202"></a>00202 <a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">movement_timeout</a> <= <span class="vhdllogic">24'd0</span>;
<a name="l00203"></a>00203 <span class="vhdlkeyword">end</span>
<a name="l00204"></a>00204 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#aff71135fe469e401402bd18c95c28f9b">ctrl_counter</a> == <span class="vhdllogic">24'hFFFFFF</span> && <a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">movement_timeout</a> != <span class="vhdllogic">24'hFFFFFF</span>) <span class="vhdlkeyword">begin</span>
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">movement_counter</a> != <span class="vhdllogic">4'd0</span>) <a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">movement_timeout</a> <= <a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">movement_timeout</a> + <span class="vhdllogic">24'd1</span>;
<a name="l00207"></a>00207 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">movement_counter</a> == <span class="vhdllogic">4'd0</span>) <a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">movement_timeout</a> <= <span class="vhdllogic">24'd0</span>;
<a name="l00208"></a>00208
<a name="l00209"></a>00209 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a094f3449c1933821d95881b3b2a3f12d">mouse_moved</a> == <span class="vhdllogic">1'b1</span>) <a class="code" href="classdrv__mouse.html#a094f3449c1933821d95881b3b2a3f12d">mouse_moved</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00210"></a>00210
<a name="l00211"></a>00211 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a1894eb5d2aaa7cf89dd823d86dafd711">new_ps2</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span>
<a name="l00212"></a>00212 <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a> <= { <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">0</span>], <a class="code" href="classdrv__mouse.html#af43ace7c3608705dd5fba3418495acab">mousedat</a>[<span class="vhdllogic">8</span>:<span class="vhdllogic">1</span>] };
<a name="l00213"></a>00213 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">movement_counter</a> == <span class="vhdllogic">2'd2</span>) <span class="vhdlkeyword">begin</span>
<a name="l00214"></a>00214 <a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">movement_counter</a> <= <span class="vhdllogic">2'd0</span>;
<a name="l00215"></a>00215
<a name="l00216"></a>00216 <span class="vhdlkeyword">if</span>(<a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a>[<span class="vhdllogic">11</span>] == <span class="vhdllogic">1'b1</span>) <a class="code" href="classdrv__mouse.html#a094f3449c1933821d95881b3b2a3f12d">mouse_moved</a> <= <span class="vhdllogic">1'b1</span>;
<a name="l00217"></a>00217 <span class="vhdlkeyword">else</span> <a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">movement_timeout</a> <= <span class="vhdllogic">24'hFFFFFF</span>;
<a name="l00218"></a>00218 <span class="vhdlkeyword">end</span>
<a name="l00219"></a>00219 <span class="vhdlkeyword">else</span> <a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">movement_counter</a> <= <a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">movement_counter</a> + <span class="vhdllogic">2'd1</span>;
<a name="l00220"></a>00220 <span class="vhdlkeyword">end</span>
<a name="l00221"></a>00221 <span class="vhdlkeyword">end</span>
<a name="l00222"></a>00222 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
<a name="l00223"></a>00223 <a class="code" href="classdrv__mouse.html#a30ce0c4b349e6b2ef4dd99a303ca7776">movement_counter</a> <= <span class="vhdllogic">2'd0</span>;
<a name="l00224"></a>00224 <a class="code" href="classdrv__mouse.html#a026f022a5a697ccc16b004aca7788be4">movement</a> <= <span class="vhdllogic">24'd0</span>;
<a name="l00225"></a>00225 <a class="code" href="classdrv__mouse.html#a094f3449c1933821d95881b3b2a3f12d">mouse_moved</a> <= <span class="vhdllogic">1'b0</span>;
<a name="l00226"></a>00226 <a class="code" href="classdrv__mouse.html#a930b8db185f7196191d3a36b0ed7c19e">movement_timeout</a> <= <span class="vhdllogic">24'd0</span>;
<a name="l00227"></a>00227 <span class="vhdlkeyword">end</span>
<a name="l00228"></a>00228 <span class="vhdlkeyword">end</span>
<a name="l00229"></a>00229
<a name="l00230"></a>00230 <span class="vhdlkeyword">endmodule</span>
</pre></div></div>
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.2 </small></address>
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