607 lines
73 KiB
HTML
607 lines
73 KiB
HTML
<!-- HTML header for doxygen 1.8.6-->
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
<meta name="generator" content="Doxygen 1.8.6"/>
|
|
<title>tinyusb: boards/embedded_artists/ea4357/emac.c Source File</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="jquery.js"></script>
|
|
<script type="text/javascript" src="dynsections.js"></script>
|
|
<link href="navtree.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="resize.js"></script>
|
|
<script type="text/javascript" src="navtree.js"></script>
|
|
<script type="text/javascript">
|
|
$(document).ready(initResizable);
|
|
$(window).load(resizeHeight);
|
|
</script>
|
|
<link href="search/search.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="search/search.js"></script>
|
|
<script type="text/javascript">
|
|
$(document).ready(function() { searchBox.OnSelectItem(0); });
|
|
</script>
|
|
<link href="doxygen.css" rel="stylesheet" type="text/css" />
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table width="100%" cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 56px;">
|
|
<td style="padding-left: 0.5em;">
|
|
<div id="projectname">tinyusb
|
|
 <span id="projectnumber">0.4</span>
|
|
</div>
|
|
</td>
|
|
<td align="right">
|
|
<a href="https://pledgie.com/campaigns/24694"><img border="0" src="https://pledgie.com/campaigns/24694.png?skin_name=chrome" alt="Click here to lend your support to tinyusb donation and make a donation at pledgie.com"></a>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.6 -->
|
|
<script type="text/javascript">
|
|
var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
|
</script>
|
|
<div id="navrow1" class="tabs">
|
|
<ul class="tablist">
|
|
<li><a href="index.html"><span>Main Page</span></a></li>
|
|
<li><a href="pages.html"><span>Related Pages</span></a></li>
|
|
<li><a href="modules.html"><span>Modules</span></a></li>
|
|
<li><a href="annotated.html"><span>Data Structures</span></a></li>
|
|
<li class="current"><a href="files.html"><span>Files</span></a></li>
|
|
<li>
|
|
<div id="MSearchBox" class="MSearchBoxInactive">
|
|
<span class="left">
|
|
<img id="MSearchSelect" src="search/mag_sel.png"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
alt=""/>
|
|
<input type="text" id="MSearchField" value="Search" accesskey="S"
|
|
onfocus="searchBox.OnSearchFieldFocus(true)"
|
|
onblur="searchBox.OnSearchFieldFocus(false)"
|
|
onkeyup="searchBox.OnSearchFieldChange(event)"/>
|
|
</span><span class="right">
|
|
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
|
|
</span>
|
|
</div>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
<div id="navrow2" class="tabs2">
|
|
<ul class="tablist">
|
|
<li><a href="files.html"><span>File List</span></a></li>
|
|
<li><a href="globals.html"><span>Globals</span></a></li>
|
|
</ul>
|
|
</div>
|
|
</div><!-- top -->
|
|
<div id="side-nav" class="ui-resizable side-nav-resizable">
|
|
<div id="nav-tree">
|
|
<div id="nav-tree-contents">
|
|
<div id="nav-sync" class="sync"></div>
|
|
</div>
|
|
</div>
|
|
<div id="splitbar" style="-moz-user-select:none;"
|
|
class="ui-resizable-handle">
|
|
</div>
|
|
</div>
|
|
<script type="text/javascript">
|
|
$(document).ready(function(){initNavTree('emac_8c_source.html','');});
|
|
</script>
|
|
<div id="doc-content">
|
|
<!-- window showing the filter options -->
|
|
<div id="MSearchSelectWindow"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
onkeydown="return searchBox.OnSearchSelectKey(event)">
|
|
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark"> </span>Pages</a></div>
|
|
|
|
<!-- iframe showing the search results (closed by default) -->
|
|
<div id="MSearchResultsWindow">
|
|
<iframe src="javascript:void(0)" frameborder="0"
|
|
name="MSearchResults" id="MSearchResults">
|
|
</iframe>
|
|
</div>
|
|
|
|
<div class="header">
|
|
<div class="headertitle">
|
|
<div class="title">emac.c</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<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"> ***** *****</span></div>
|
|
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> ***** Name: cs8900.c *****</span></div>
|
|
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> ***** Ver.: 1.0 *****</span></div>
|
|
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> ***** Date: 07/05/2001 *****</span></div>
|
|
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> ***** Auth: Andreas Dannenberg *****</span></div>
|
|
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> ***** HTWK Leipzig *****</span></div>
|
|
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> ***** university of applied sciences *****</span></div>
|
|
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> ***** Germany *****</span></div>
|
|
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> ***** Func: ethernet packet-driver for use with LAN- *****</span></div>
|
|
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> ***** controller CS8900 from Crystal/Cirrus Logic *****</span></div>
|
|
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> ***** *****</span></div>
|
|
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> ***** NXP: Module modified for use with NXP *****</span></div>
|
|
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> ***** lpc43xx EMAC Ethernet controller *****</span></div>
|
|
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> ***** *****</span></div>
|
|
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> ******************************************************************/</span></div>
|
|
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
|
|
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "../../board.h"</span></div>
|
|
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
|
|
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#if BOARD == BOARD_EA4357</span></div>
|
|
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "EMAC.h"</span></div>
|
|
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">//#include "tcpip.h"</span></div>
|
|
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "lpc43xx.h"</span></div>
|
|
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "lpc43xx_scu.h"</span></div>
|
|
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "lpc43xx_rgu.h"</span></div>
|
|
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
|
|
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#define TIMEOUT 100000</span></div>
|
|
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> *rptr;</div>
|
|
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> *tptr;</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> TxDescIndex = 0;</div>
|
|
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> RxDescIndex = 0;</div>
|
|
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
|
|
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// Keil: function added to write PHY</span></div>
|
|
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">static</span> <span class="keywordtype">void</span> write_PHY (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> PhyReg, <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> Value) {</div>
|
|
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  </div>
|
|
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tout;</div>
|
|
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
|
|
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">/* Write a data 'Value' to PHY register 'PhyReg'. */</span></div>
|
|
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">while</span>(LPC_ETHERNET->MAC_MII_ADDR & GMII_BUSY); <span class="comment">// Check GMII busy bit</span></div>
|
|
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  LPC_ETHERNET->MAC_MII_ADDR = (DP83848C_DEF_ADR<<11) | (PhyReg<<6) | GMII_WRITE;</div>
|
|
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  LPC_ETHERNET->MAC_MII_DATA = Value;</div>
|
|
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  LPC_ETHERNET->MAC_MII_ADDR |= GMII_BUSY; <span class="comment">// Start PHY Write Cycle</span></div>
|
|
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
|
|
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="comment">/* Wait utill operation completed */</span></div>
|
|
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">for</span> (tout = 0; tout < MII_WR_TOUT; tout++) {</div>
|
|
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">if</span> ((LPC_ETHERNET->MAC_MII_ADDR & GMII_BUSY) == 0) {</div>
|
|
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00051"></a><span class="lineno"> 51</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="keywordflow">if</span> (tout == MII_WR_TOUT) <span class="comment">// Trap the timeout</span></div>
|
|
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">while</span>(1);</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"> 57</span> </div>
|
|
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// Keil: function added to read PHY</span></div>
|
|
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> read_PHY (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> PhyReg) {</div>
|
|
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
|
|
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tout, val;</div>
|
|
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
|
|
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">/* Read a PHY register 'PhyReg'. */</span></div>
|
|
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">while</span>(LPC_ETHERNET->MAC_MII_ADDR & GMII_BUSY); <span class="comment">// Check GMII busy bit</span></div>
|
|
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  LPC_ETHERNET->MAC_MII_ADDR = (DP83848C_DEF_ADR<<11) | (PhyReg<<6) | GMII_READ;</div>
|
|
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  LPC_ETHERNET->MAC_MII_ADDR |= GMII_BUSY; <span class="comment">// Start PHY Read Cycle</span></div>
|
|
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
|
|
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">/* Wait until operation completed */</span></div>
|
|
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">for</span> (tout = 0; tout < MII_RD_TOUT; tout++) {</div>
|
|
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">if</span> ((LPC_ETHERNET->MAC_MII_ADDR & GMII_BUSY) == 0) {</div>
|
|
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</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>  <span class="keywordflow">if</span> (tout == MII_RD_TOUT) <span class="comment">// Trap the timeout</span></div>
|
|
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">while</span>(1);</div>
|
|
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  val = LPC_ETHERNET->MAC_MII_DATA;</div>
|
|
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> (val);</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> </div>
|
|
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
|
|
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">// Keil: function added to initialize Rx Descriptors</span></div>
|
|
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="keywordtype">void</span> rx_descr_init (<span class="keywordtype">void</span>)</div>
|
|
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> {</div>
|
|
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</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>  <span class="keywordflow">for</span> (i = 0; i < NUM_RX_DESC; i++) {</div>
|
|
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  RX_DESC_STAT(i) = OWN_BIT; </div>
|
|
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  RX_DESC_CTRL(i) = ETH_FRAG_SIZE;</div>
|
|
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  RX_BUFADDR(i) = RX_BUF(i); </div>
|
|
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">if</span> (i == (NUM_RX_DESC-1)) <span class="comment">// Last Descriptor?</span></div>
|
|
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  RX_DESC_CTRL(i) |= RX_END_RING;</div>
|
|
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
|
|
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
|
|
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">/* Set Starting address of RX Descriptor list */</span></div>
|
|
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  LPC_ETHERNET->DMA_REC_DES_ADDR = RX_DESC_BASE;</div>
|
|
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> }</div>
|
|
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
|
|
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
|
|
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// Keil: function added to initialize Tx Descriptors</span></div>
|
|
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keywordtype">void</span> tx_descr_init (<span class="keywordtype">void</span>)</div>
|
|
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> {</div>
|
|
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</div>
|
|
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
|
|
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">for</span> (i = 0; i < NUM_TX_DESC; i++) { <span class="comment">// Take it out!!!!</span></div>
|
|
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  TX_DESC_STAT(i) = 0;</div>
|
|
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  TX_DESC_CTRL(i) = 0;</div>
|
|
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  TX_BUFADDR(i) = 0;</div>
|
|
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  }</div>
|
|
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
|
|
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">for</span> (i = 0; i < NUM_TX_DESC; i++) {</div>
|
|
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  TX_DESC_STAT(i) = TX_LAST_SEGM | TX_FIRST_SEGM;</div>
|
|
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  TX_DESC_CTRL(i) = 0;</div>
|
|
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  TX_BUFADDR(i) = TX_BUF(i); </div>
|
|
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">if</span> (i == (NUM_TX_DESC-1)) <span class="comment">// Last Descriptor?</span></div>
|
|
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  TX_DESC_STAT(i) |= TX_END_RING;</div>
|
|
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</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>  <span class="comment">/* Set Starting address of RX Descriptor list */</span></div>
|
|
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  LPC_ETHERNET->DMA_TRANS_DES_ADDR = TX_DESC_BASE;</div>
|
|
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> }</div>
|
|
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
|
|
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
|
|
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
|
|
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// configure port-pins for use with LAN-controller,</span></div>
|
|
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">// reset it and send the configuration-sequence</span></div>
|
|
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
|
|
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="keywordtype">void</span> Init_EMAC(<span class="keywordtype">void</span>)</div>
|
|
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> {</div>
|
|
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">int</span> id1, id2, tout, regv;</div>
|
|
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">unsigned</span> phy_in_use = 0;</div>
|
|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
|
|
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">/* Ethernet pins configuration */</span></div>
|
|
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="preprocessor">#if MII </span></div>
|
|
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="preprocessor"></span> scu_pinmux(0xC ,1 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_MDC: PC_1 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  scu_pinmux(0x1 ,17 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_MDIO: P1_17 -> FUNC3 </span></div>
|
|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  scu_pinmux(0x1 ,18 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_TXD0: P1_18 -> FUNC3 </span></div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  scu_pinmux(0x1 ,20 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_TXD1: P1_20 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  scu_pinmux(0x1 ,19 , (MD_PLN | MD_EZI | MD_ZI), FUNC0); <span class="comment">// ENET_REF: P1_19 -> FUNC0 (default)</span></div>
|
|
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div>
|
|
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment">// scu_pinmux(0xC ,4 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_TX_EN: PC_4 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  scu_pinmux(0x0 ,1 , (MD_PLN | MD_EZI | MD_ZI), FUNC6); <span class="comment">// ENET_TX_EN: P0_1 -> FUNC6</span></div>
|
|
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
|
|
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  scu_pinmux(0x1 ,15 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_RXD0: P1_15 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  scu_pinmux(0x0 ,0 , (MD_PLN | MD_EZI | MD_ZI), FUNC2); <span class="comment">// ENET_RXD1: P0_0 -> FUNC2 </span></div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment">// scu_pinmux(0x1 ,16 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_CRS: P1_16 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  scu_pinmux(0x9 ,0 , (MD_PLN | MD_EZI | MD_ZI), FUNC5); <span class="comment">// ENET_CRS: P9_0 -> FUNC5</span></div>
|
|
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
|
|
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment">// scu_pinmux(0xC ,9 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_RX_ER: PC_9 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  scu_pinmux(0x9 ,1 , (MD_PLN | MD_EZI | MD_ZI), FUNC5); <span class="comment">// ENET_RX_ER: P9_1 -> FUNC5</span></div>
|
|
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
|
|
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment">// scu_pinmux(0xC ,8 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_RXDV: PC_8 -> FUNC3 </span></div>
|
|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  scu_pinmux(0x1 ,16 , (MD_PLN | MD_EZI | MD_ZI), FUNC7); <span class="comment">// ENET_RXDV: P1_16 -> FUNC7 </span></div>
|
|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div>
|
|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="preprocessor">#else</span></div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="preprocessor"></span> scu_pinmux(0xC ,1 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_MDC: PC_1 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  scu_pinmux(0x1 ,17 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_MDIO: P1_17 -> FUNC3 </span></div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  scu_pinmux(0x1 ,18 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_TXD0: P1_18 -> FUNC3 </span></div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  scu_pinmux(0x1 ,20 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_TXD1: P1_20 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  scu_pinmux(0x1 ,19 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC0); <span class="comment">// ENET_REF: P1_19 -> FUNC0 (default)</span></div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment">// scu_pinmux(0xC ,4 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_TX_EN: PC_4 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  scu_pinmux(0x0 ,1 , (MD_PLN | MD_EZI | MD_ZI), FUNC6); <span class="comment">// ENET_TX_EN: P0_1 -> FUNC6</span></div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  scu_pinmux(0x1 ,15 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_RXD0: P1_15 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  scu_pinmux(0x0 ,0 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC2); <span class="comment">// ENET_RXD1: P0_0 -> FUNC2 </span></div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment">// scu_pinmux(0x1 ,16 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_CRS: P1_16 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment">// scu_pinmux(0x9 ,0 , (MD_PLN | MD_EZI | MD_ZI), FUNC5); // ENET_CRS: P9_0 -> FUNC5</span></div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment">// scu_pinmux(0xC ,9 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_RX_ER: PC_9 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment">// scu_pinmux(0x9 ,1 , (MD_PLN | MD_EZI | MD_ZI), FUNC5); // ENET_RX_ER: P9_1 -> FUNC5</span></div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment">// scu_pinmux(0xC ,8 , (MD_EHS | MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_RXDV: PC_8 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  scu_pinmux(0x1 ,16 , (MD_PLN | MD_EZI | MD_ZI), FUNC7); <span class="comment">// ENET_RXDV: P1_16 -> FUNC7</span></div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="preprocessor"></span> </div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  </div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="preprocessor">#if MII </span><span class="comment">/* Select MII interface */</span><span class="preprocessor"> // check MUXING for new Eagle...</span></div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="preprocessor"></span><span class="comment">// scu_pinmux(0xC ,6 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_RXD2: PC_6 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  scu_pinmux(0x9 ,3 , (MD_PLN | MD_EZI | MD_ZI), FUNC5); <span class="comment">// ENET_RXD2: P9_3 -> FUNC5</span></div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// scu_pinmux(0xC ,7 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_RXD3: PC_7 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  scu_pinmux(0x9 ,2 , (MD_PLN | MD_EZI | MD_ZI), FUNC5); <span class="comment">// ENET_RXD3: P9_2 -> FUNC5</span></div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  scu_pinmux(0xC ,0 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_RXLK: PC_0 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment">// scu_pinmux(0xC ,2 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_TXD2: PC_2 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  scu_pinmux(0x9 ,4 , (MD_PLN | MD_EZI | MD_ZI), FUNC5); <span class="comment">// ENET_TXD2: P9_4 -> FUNC5</span></div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment">// scu_pinmux(0xC ,3 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_TXD3: PC_3 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  scu_pinmux(0x9 ,5 , (MD_PLN | MD_EZI | MD_ZI), FUNC5); <span class="comment">// ENET_TXD3: P9_5 -> FUNC5</span></div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment">// scu_pinmux(0xC ,5 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); // ENET_TX_ER: PC_5 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  scu_pinmux(0xC ,5 , (MD_PLN | MD_EZI | MD_ZI), FUNC3); <span class="comment">// ENET_TX_ER: PC_5 -> FUNC3</span></div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  </div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment">// scu_pinmux(0x0 ,1 , (MD_PLN | MD_EZI | MD_ZI), FUNC2); // ENET_COL: P0_1 -> FUNC2</span></div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  scu_pinmux(0x9 ,6 , (MD_PLN | MD_EZI | MD_ZI), FUNC5); <span class="comment">// ENET_COL: P9_6 -> FUNC5</span></div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="preprocessor">#else </span><span class="comment">/* Select RMII interface */</span><span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="preprocessor"></span> LPC_CREG->CREG6 |= RMII_SELECT;</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  RGU_SoftReset(RGU_SIG_ETHERNET);</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">while</span>(1){ <span class="comment">// Confirm the reset happened</span></div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">if</span> (LPC_RGU->RESET_ACTIVE_STATUS0 & (1<<ETHERNET_RST))</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  }</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  LPC_ETHERNET->DMA_BUS_MODE |= DMA_SOFT_RESET; <span class="comment">// Reset all GMAC Subsystem internal registers and logic </span></div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">while</span>(LPC_ETHERNET->DMA_BUS_MODE & DMA_SOFT_RESET); <span class="comment">// Wait for software reset completion</span></div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">/* Put the DP83848C in reset mode */</span></div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  write_PHY (PHY_REG_BMCR, PHY_BMCR_RESET);</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">/* Wait for hardware reset to end. */</span></div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">for</span> (tout = 0; tout < TIMEOUT; tout++) {</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  regv = read_PHY (PHY_REG_BMCR);</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">if</span> (!(regv & PHY_BMCR_RESET)) {</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="comment">/* Reset complete */</span></div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  }</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  }</div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="comment">/* Check if this is a DP83848C PHY. */</span></div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  id1 = read_PHY (PHY_REG_IDR1);</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  id2 = read_PHY (PHY_REG_IDR2);</div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">if</span> (((id1 << 16) | (id2 & 0xFFF0)) == DP83848C_ID) {</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  phy_in_use = DP83848C_ID;</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  }</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (((id1 << 16) | (id2 & 0xFFF0)) == LAN8720_ID) {</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  phy_in_use = LAN8720_ID;</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  }</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">if</span> (phy_in_use != 0) {</div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="comment">/* Configure the PHY device */</span></div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="preprocessor">#if !MII</span></div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="preprocessor"></span> write_PHY (PHY_REG_RBR, 0x20);</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">/* Use autonegotiation about the link speed. */</span></div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  write_PHY (PHY_REG_BMCR, PHY_AUTO_NEG);</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="comment">/* Wait to complete Auto_Negotiation. */</span></div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">for</span> (tout = 0; tout < TIMEOUT; tout++) {</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  regv = read_PHY (PHY_REG_BMSR);</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span> (regv & PHY_AUTO_NEG_DONE) {</div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="comment">/* Autonegotiation Complete. */</span></div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  }</div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  }</div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  }</div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">/* Check the link status. */</span></div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">for</span> (tout = 0; tout < TIMEOUT; tout++) {</div>
|
|
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  regv = read_PHY (PHY_REG_STS);</div>
|
|
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">if</span> (regv & LINK_VALID_STS) {</div>
|
|
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">/* Link is on. */</span></div>
|
|
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  }</div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  }</div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  </div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="comment">// Configure the EMAC with the established parameters</span></div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">switch</span> (phy_in_use) {</div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">case</span> DP83848C_ID:</div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="comment">/* Configure Full/Half Duplex mode. */</span></div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">if</span> (regv & FULL_DUP_STS) {</div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="comment">/* Full duplex is enabled. */</span></div>
|
|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  LPC_ETHERNET->MAC_CONFIG |= MAC_DUPMODE;</div>
|
|
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  }</div>
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div>
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">/* Configure 100MBit/10MBit mode. */</span></div>
|
|
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">if</span> (~(regv & SPEED_10M_STS)) {</div>
|
|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">/* 100MBit mode. */</span></div>
|
|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  LPC_ETHERNET->MAC_CONFIG |= MAC_100MPS;</div>
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  </div>
|
|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment">// value = ReadFromPHY (PHY_REG_STS); /* PHY Extended Status Register */</span></div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="comment">// // Now configure for full/half duplex mode</span></div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment">// if (value & 0x0004) {</span></div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment">// // We are in full duplex is enabled mode</span></div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment">// LPC_ETHERNET->MAC2 |= MAC2_FULL_DUP;</span></div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="comment">// LPC_ETHERNET->Command |= CR_FULL_DUP;</span></div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="comment">// LPC_ETHERNET->IPGT = IPGT_FULL_DUP;</span></div>
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment">// }</span></div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment">// else {</span></div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment">// // Otherwise we are in half duplex mode</span></div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment">// LPC_ETHERNET->IPGT = IPGT_HALF_DUP;</span></div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment">// }</span></div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> </div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment">// // Now configure 100MBit or 10MBit mode</span></div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment">// if (value & 0x0002) {</span></div>
|
|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment">// // 10MBit mode</span></div>
|
|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment">// LPC_ETHERNET->SUPP = 0;</span></div>
|
|
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment">// }</span></div>
|
|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment">// else {</span></div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="comment">// // 100MBit mode</span></div>
|
|
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment">// LPC_ETHERNET->SUPP = SUPP_SPEED;</span></div>
|
|
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment">// }</span></div>
|
|
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div>
|
|
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keywordflow">case</span> LAN8720_ID:</div>
|
|
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div>
|
|
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  regv = read_PHY (PHY_REG_SCSR); <span class="comment">/* PHY Extended Status Register */</span></div>
|
|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="comment">// Now configure for full/half duplex mode</span></div>
|
|
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">if</span> (regv & (1<<4)) { <span class="comment">/* bit 4: 1 = Full Duplex, 0 = Half Duplex */</span></div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="comment">// We are in full duplex is enabled mode</span></div>
|
|
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  LPC_ETHERNET->MAC_CONFIG |= MAC_DUPMODE;</div>
|
|
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  }</div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> </div>
|
|
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="comment">// Now configure 100MBit or 10MBit mode</span></div>
|
|
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">if</span> (regv & (1<<3)) { <span class="comment">/* bit 3: 1 = 100Mbps, 0 = 10Mbps */</span></div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="comment">// 100MBit mode</span></div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  LPC_ETHERNET->MAC_CONFIG |= MAC_100MPS;</div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  }</div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div>
|
|
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  }</div>
|
|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  </div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">/* Set the Ethernet MAC Address registers */</span></div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  LPC_ETHERNET->MAC_ADDR0_HIGH = (MYMAC_6 << 8) | MYMAC_5;</div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  LPC_ETHERNET->MAC_ADDR0_LOW = (MYMAC_4 << 24) | (MYMAC_3 << 16) | (MYMAC_2 << 8) | MYMAC_1;</div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">/* Initialize Descriptor Lists */</span></div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  rx_descr_init();</div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  tx_descr_init();</div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  </div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">/* Configure Filter */</span> </div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  LPC_ETHERNET->MAC_FRAME_FILTER = MAC_PROMISCUOUS | MAC_RECEIVEALL;</div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">/* Enable Receiver and Transmitter */</span></div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  LPC_ETHERNET->MAC_CONFIG |= (MAC_TX_ENABLE | MAC_RX_ENABLE); </div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> </div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">/* Enable interrupts */</span></div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="comment">//LPC_ETHERNET->DMA_INT_EN = DMA_INT_NOR_SUM | DMA_INT_RECEIVE | DMA_INT_TRANSMIT; </span></div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> </div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="comment">/* Start Transmission & Receive processes */</span></div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  LPC_ETHERNET->DMA_OP_MODE |= (DMA_SS_TRANSMIT | DMA_SS_RECEIVE ); </div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> }</div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> </div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="comment">// reads a word in little-endian byte order from RX_BUFFER</span></div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> </div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> ReadFrame_EMAC(<span class="keywordtype">void</span>)</div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> {</div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">return</span> (*rptr++);</div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> }</div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span> </div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="comment">// easyWEB internal function</span></div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="comment">// help function to swap the byte order of a WORD</span></div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> SwapBytes(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> Data)</div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> {</div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">return</span> (Data >> 8) | (Data << 8);</div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> }</div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span> </div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="comment">// reads a word in big-endian byte order from RX_FRAME_PORT</span></div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="comment">// (useful to avoid permanent byte-swapping while reading</span></div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="comment">// TCP/IP-data)</span></div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> ReadFrameBE_EMAC(<span class="keywordtype">void</span>)</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> {</div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> ReturnValue;</div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  ReturnValue = SwapBytes (*rptr++);</div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keywordflow">return</span> (ReturnValue);</div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> }</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> </div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="comment">// copies bytes from frame port to MCU-memory</span></div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="comment">// NOTES: * an odd number of byte may only be transfered</span></div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="comment">// if the frame is read to the end!</span></div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="comment">// * MCU-memory MUST start at word-boundary</span></div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> </div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="keywordtype">void</span> CopyFromFrame_EMAC(<span class="keywordtype">void</span> *Dest, <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> Size)</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> {</div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> * piDest; <span class="comment">// Keil: Pointer added to correct expression</span></div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  piDest = Dest; <span class="comment">// Keil: Line added</span></div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">while</span> (Size > 1) {</div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  *piDest++ = ReadFrame_EMAC();</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  Size -= 2;</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  }</div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  </div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">if</span> (Size) { <span class="comment">// check for leftover byte...</span></div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  *(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)piDest = (<span class="keywordtype">char</span>)ReadFrame_EMAC();<span class="comment">// the LAN-Controller will return 0</span></div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  } <span class="comment">// for the highbyte</span></div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> }</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> </div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="comment">// does a dummy read on frame-I/O-port</span></div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> <span class="comment">// NOTE: only an even number of bytes is read!</span></div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> </div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="keywordtype">void</span> DummyReadFrame_EMAC(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> Size) <span class="comment">// discards an EVEN number of bytes</span></div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> { <span class="comment">// from RX-fifo</span></div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keywordflow">while</span> (Size > 1) {</div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  ReadFrame_EMAC();</div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  Size -= 2;</div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  }</div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> }</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> </div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="comment">// Reads the length of the received ethernet frame and checks if the </span></div>
|
|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="comment">// destination address is a broadcast message or not</span></div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="comment">// returns the frame length</span></div>
|
|
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> StartReadFrame(<span class="keywordtype">void</span>) {</div>
|
|
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> RxLen;</div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> </div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">if</span> ((RX_DESC_STAT(RxDescIndex) & OWN_BIT) == 0) {</div>
|
|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  RxLen = (RX_DESC_STAT(RxDescIndex) >> 16) & 0x03FFF; </div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  rptr = (<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> *)RX_BUFADDR(RxDescIndex);</div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keywordflow">return</span>(RxLen);</div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  }</div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> </div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> }</div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="keywordtype">void</span> EndReadFrame(<span class="keywordtype">void</span>) {</div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> </div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  RX_DESC_STAT(RxDescIndex) = OWN_BIT;</div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  RxDescIndex++;</div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">if</span> (RxDescIndex == NUM_RX_DESC)</div>
|
|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  RxDescIndex = 0;</div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> }</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> CheckFrameReceived(<span class="keywordtype">void</span>) { <span class="comment">// Packet received ?</span></div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> </div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keywordflow">if</span> ((RX_DESC_STAT(RxDescIndex) & OWN_BIT) == 0) </div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordflow">return</span>(1);</div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">else</span> </div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keywordflow">return</span>(0);</div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> }</div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> </div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span> <span class="comment">// requests space in EMAC memory for storing an outgoing frame</span></div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> </div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> <span class="keywordtype">void</span> RequestSend(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> FrameSize)</div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> {</div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  tptr = (<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> *)TX_BUFADDR(TxDescIndex);</div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  TX_DESC_CTRL(TxDescIndex) = FrameSize;</div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> }</div>
|
|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> </div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> <span class="comment">// check if ethernet controller is ready to accept the</span></div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <span class="comment">// frame we want to send</span></div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Rdy4Tx(<span class="keywordtype">void</span>)</div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> {</div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">return</span> (1); <span class="comment">// the ethernet controller transmits much faster</span></div>
|
|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> } <span class="comment">// than the CPU can load its buffers</span></div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div>
|
|
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> </div>
|
|
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="comment">// writes a word in little-endian byte order to TX_BUFFER</span></div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="keywordtype">void</span> WriteFrame_EMAC(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> Data)</div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> {</div>
|
|
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  *tptr++ = Data;</div>
|
|
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> }</div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="comment">// copies bytes from MCU-memory to frame port</span></div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="comment">// NOTES: * an odd number of byte may only be transfered</span></div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment">// if the frame is written to the end!</span></div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="comment">// * MCU-memory MUST start at word-boundary</span></div>
|
|
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> </div>
|
|
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="keywordtype">void</span> CopyToFrame_EMAC(<span class="keywordtype">void</span> *Source, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Size)</div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> {</div>
|
|
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> * piSource;</div>
|
|
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="comment">// unsigned int idx;</span></div>
|
|
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> </div>
|
|
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  piSource = Source;</div>
|
|
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  Size = (Size + 1) & 0xFFFE; <span class="comment">// round Size up to next even number</span></div>
|
|
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">while</span> (Size > 0) {</div>
|
|
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  WriteFrame_EMAC(*piSource++);</div>
|
|
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  Size -= 2;</div>
|
|
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  }</div>
|
|
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  TX_DESC_STAT(TxDescIndex) |= OWN_BIT;</div>
|
|
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  LPC_ETHERNET->DMA_TRANS_POLL_DEMAND = 1; <span class="comment">// Wake Up the DMA if it's in Suspended Mode</span></div>
|
|
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  TxDescIndex++;</div>
|
|
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordflow">if</span> (TxDescIndex == NUM_TX_DESC)</div>
|
|
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  TxDescIndex = 0;</div>
|
|
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> }</div>
|
|
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> </div>
|
|
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="preprocessor"></span></div>
|
|
</div><!-- fragment --></div><!-- contents -->
|
|
</div><!-- doc-content -->
|
|
<!-- start footer part -->
|
|
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
|
|
<ul>
|
|
<li class="navelem"><a class="el" href="dir_6c8313236d9db5b969ca7d150fe527de.html">boards</a></li><li class="navelem"><a class="el" href="dir_16f8a31e6faaf6b99dd482ed761532f9.html">embedded_artists</a></li><li class="navelem"><a class="el" href="dir_0f0a8230e9592f35c19e8a55c55827ed.html">ea4357</a></li><li class="navelem"><b>emac.c</b></li>
|
|
<li class="footer">Generated on Tue Apr 15 2014 10:49:22 for tinyusb by
|
|
<a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 </li>
|
|
</ul>
|
|
</div>
|
|
</body>
|
|
</html>
|