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<a href="../../d8/d51/dma_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="../../d9/d95/dma_8h.html">sys/dma.h</a>></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="../../dc/dac/io_8h.html">sys/io.h</a>></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="../../d8/d51/dma_8c.html#a19a055e908717e6f71f285bc5c84ea45"> 32</a></span> <span class="preprocessor">#define lowByte(x) (x & 0x00FF)</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="../../d8/d51/dma_8c.html#ad03cbb59aaf2eea05907807a12936e7f"> 33</a></span> <span class="preprocessor">#define highByte(x) ((x & 0xFF00) >> 8)</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">static</span> <a class="code" href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a> maskReg[8] = { 0x0A, 0x0A, 0x0A, 0x0A, 0xD4, 0xD4, 0xD4, 0xD4 };</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">static</span> <a class="code" href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a> clearReg[8] = { 0x0C, 0x0C, 0x0C, 0x0C, 0xD8, 0xD8, 0xD8, 0xD8 };</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">static</span> <a class="code" href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a> modeReg[8] = { 0x0B, 0x0B, 0x0B, 0x0B, 0xD6, 0xD6, 0xD6, 0xD6 };</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">static</span> <a class="code" href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a> addrPort[8] = { 0x00, 0x02, 0x04, 0x06, 0xC0, 0xC4, 0xC8, 0xCC };</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">static</span> <a class="code" href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a> pagePort[8] = { 0x87, 0x83, 0x81, 0x82, 0x8F, 0x8B, 0x89, 0x8A };</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">static</span> <a class="code" href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a> countPort[8] = { 0x01, 0x03, 0x05, 0x07, 0xC2, 0xC6, 0xCA, 0xCE };</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="../../d8/d51/dma_8c.html#a79162e5c636d27f92e4e2c7c87bb6e22"> 42</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/d51/dma_8c.html#a79162e5c636d27f92e4e2c7c87bb6e22">dmaXfer</a>(<a class="code" href="../../d0/d27/include_2sys_2types_8h.html#a2aff71146ab4942b2b38860c749c4074">uint8_t</a> channel, <a class="code" href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> address, <a class="code" href="../../d0/d27/include_2sys_2types_8h.html#a87d141052bcd5ec8a80812a565c70369">uInt</a> length, <a class="code" href="../../d0/d27/include_2sys_2types_8h.html#a2aff71146ab4942b2b38860c749c4074">uint8_t</a> <a class="code" href="../../de/d9a/gen__calls_8h.html#a5eff3a25d417fafce7c4f211db219ca2">read</a>) {</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> page = 0, mode = 0;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> offset = 0;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (<a class="code" href="../../de/d9a/gen__calls_8h.html#a5eff3a25d417fafce7c4f211db219ca2">read</a>) {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  mode = 0x48 + channel;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  }</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  mode = 0x44 + channel;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  page = address >> 16;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  offset = address & 0xFFFF;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  length--;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="../../d8/d51/dma_8c.html#ae136d2bd6481a13de8e96f5a583c45eb">_dmaXfer</a>(channel, page, offset, length, mode);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> }</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="../../d8/d51/dma_8c.html#ae136d2bd6481a13de8e96f5a583c45eb"> 57</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/d51/dma_8c.html#ae136d2bd6481a13de8e96f5a583c45eb">_dmaXfer</a>(<a class="code" href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a> dmaChannel, <a class="code" href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a> page, <a class="code" href="../../d0/d27/include_2sys_2types_8h.html#a87d141052bcd5ec8a80812a565c70369">uInt</a> offset, <a class="code" href="../../d0/d27/include_2sys_2types_8h.html#a87d141052bcd5ec8a80812a565c70369">uInt</a> length, <a class="code" href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a> mode) {</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">//asm("cli");</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(maskReg[dmaChannel], 0x04 | dmaChannel);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(clearReg[dmaChannel], 0x00);</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(modeReg[dmaChannel], mode);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(addrPort[dmaChannel], <a class="code" href="../../d8/d51/dma_8c.html#a19a055e908717e6f71f285bc5c84ea45">lowByte</a>(offset));</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(addrPort[dmaChannel], <a class="code" href="../../d8/d51/dma_8c.html#ad03cbb59aaf2eea05907807a12936e7f">highByte</a>(offset));</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(pagePort[dmaChannel], page);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(countPort[dmaChannel], <a class="code" href="../../d8/d51/dma_8c.html#a19a055e908717e6f71f285bc5c84ea45">lowByte</a>(length));</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(countPort[dmaChannel], <a class="code" href="../../d8/d51/dma_8c.html#ad03cbb59aaf2eea05907807a12936e7f">highByte</a>(length));</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(maskReg[dmaChannel], dmaChannel);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">//asm("sti");</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> }</div>
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<div class="ttc" id="adma_8c_html_a19a055e908717e6f71f285bc5c84ea45"><div class="ttname"><a href="../../d8/d51/dma_8c.html#a19a055e908717e6f71f285bc5c84ea45">lowByte</a></div><div class="ttdeci">#define lowByte(x)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d51/dma_8c_source.html#l00032">dma.c:32</a></div></div>
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<div class="ttc" id="aobjgfx30_8h_html_aa4e0f27a9aca905e340c06d2dcae843c"><div class="ttname"><a href="../../dd/d1e/objgfx30_8h.html#aa4e0f27a9aca905e340c06d2dcae843c">uInt8</a></div><div class="ttdeci">unsigned char uInt8</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d1e/objgfx30_8h_source.html#l00047">objgfx30.h:47</a></div></div>
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