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<h1>arygon.c</h1> </div>
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<a href="arygon_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*-</span>
<a name="l00002"></a>00002 <span class="comment"> * Public platform independent Near Field Communication (NFC) library</span>
<a name="l00003"></a>00003 <span class="comment"> * </span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2009, Roel Verdult</span>
<a name="l00005"></a>00005 <span class="comment"> * </span>
<a name="l00006"></a>00006 <span class="comment"> * This program is free software: you can redistribute it and/or modify it</span>
<a name="l00007"></a>00007 <span class="comment"> * under the terms of the GNU Lesser General Public License as published by the</span>
<a name="l00008"></a>00008 <span class="comment"> * Free Software Foundation, either version 3 of the License, or (at your</span>
<a name="l00009"></a>00009 <span class="comment"> * option) any later version.</span>
<a name="l00010"></a>00010 <span class="comment"> * </span>
<a name="l00011"></a>00011 <span class="comment"> * This program is distributed in the hope that it will be useful, but WITHOUT</span>
<a name="l00012"></a>00012 <span class="comment"> * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or</span>
<a name="l00013"></a>00013 <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for</span>
<a name="l00014"></a>00014 <span class="comment"> * more details.</span>
<a name="l00015"></a>00015 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * You should have received a copy of the GNU Lesser General Public License</span>
<a name="l00017"></a>00017 <span class="comment"> * along with this program. If not, see <http://www.gnu.org/licenses/></span>
<a name="l00018"></a>00018 <span class="comment"> */</span>
<a name="l00019"></a>00019
<a name="l00028"></a>00028 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor"># include "config.h"</span>
<a name="l00030"></a>00030 <span class="preprocessor">#endif // HAVE_CONFIG_H</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include "<a class="code" href="drivers_8h.html" title="Supported drivers header.">../drivers.h</a>"</span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="preprocessor">#include <stdio.h></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <string.h></span>
<a name="l00036"></a>00036 <span class="preprocessor">#ifdef HAVE_STRINGS_H</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor"># include <strings.h></span>
<a name="l00038"></a>00038 <span class="preprocessor">#endif</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include "<a class="code" href="arygon_8h.html">arygon.h</a>"</span>
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="preprocessor">#include <nfc/nfc-messages.h></span>
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="comment">// Bus</span>
<a name="l00045"></a>00045 <span class="preprocessor">#include "uart.h"</span>
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="preprocessor">#include <sys/param.h></span>
<a name="l00048"></a>00048
<a name="l00052"></a><a class="code" href="arygon_8c.html#a393bb3414a9ad355e3a4ca0f49bda524">00052</a> <span class="preprocessor">#define DEV_ARYGON_PROTOCOL_ARYGON_ASCII '0'</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span>
<a name="l00056"></a>00056 <span class="preprocessor">#define DEV_ARYGON_PROTOCOL_ARYGON_BINARY_WAB '1'</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span>
<a name="l00060"></a><a class="code" href="arygon_8c.html#a45a0db482af5440d539df261d112a6f5">00060</a> <span class="preprocessor">#define DEV_ARYGON_PROTOCOL_TAMA '2'</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span>
<a name="l00064"></a><a class="code" href="arygon_8c.html#a1477dafea3f903a0e0e3ac707985e7e7">00064</a> <span class="preprocessor">#define DEV_ARYGON_PROTOCOL_TAMA_WAB '3'</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span>
<a name="l00066"></a>00066 <span class="preprocessor">#define SERIAL_DEFAULT_PORT_SPEED 9600</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span>
<a name="l00068"></a>00068 <span class="comment">// TODO Move this one level up for libnfc-1.6</span>
<a name="l00069"></a>00069 <span class="keyword">static</span> <span class="keyword">const</span> byte_t pn53x_ack_frame[] = { 0x00, 0x00, 0xff, 0x00, 0xff, 0x00 };
<a name="l00070"></a>00070 <span class="comment">// XXX It seems that sending arygon_ack_frame to cancel current command is not allowed by ARYGON µC (see arygon_ack())</span>
<a name="l00071"></a>00071 <span class="comment">// static const byte_t arygon_ack_frame[] = { DEV_ARYGON_PROTOCOL_TAMA, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00 };</span>
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keyword">static</span> <span class="keyword">const</span> byte_t arygon_error_none[] = <span class="stringliteral">"FF000000\x0d\x0a"</span>;
<a name="l00074"></a>00074 <span class="keyword">static</span> <span class="keyword">const</span> byte_t arygon_error_incomplete_command[] = <span class="stringliteral">"FF0C0000\x0d\x0a"</span>;
<a name="l00075"></a>00075 <span class="keyword">static</span> <span class="keyword">const</span> byte_t arygon_error_unknown_mode[] = <span class="stringliteral">"FF060000\x0d\x0a"</span>;
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="comment">// void arygon_ack (const nfc_device_spec_t nds);</span>
<a name="l00078"></a>00078 <span class="keywordtype">bool</span> arygon_reset_tama (<span class="keyword">const</span> nfc_device_spec_t nds);
<a name="l00079"></a>00079 <span class="keywordtype">void</span> arygon_firmware (<span class="keyword">const</span> nfc_device_spec_t nds, <span class="keywordtype">char</span> * str);
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keywordtype">bool</span> <a class="code" href="arygon_8c.html#a7f0152c9bfca7dcb0b1f326d49cc2ed9">arygon_check_communication</a> (<span class="keyword">const</span> nfc_device_spec_t nds);
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <a class="code" href="structnfc__device__desc__t.html" title="NFC device description.">nfc_device_desc_t</a> *
<a name="l00084"></a>00084 arygon_pick_device (<span class="keywordtype">void</span>)
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 <a class="code" href="structnfc__device__desc__t.html" title="NFC device description.">nfc_device_desc_t</a> *pndd;
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="keywordflow">if</span> ((pndd = malloc (<span class="keyword">sizeof</span> (*pndd)))) {
<a name="l00089"></a>00089 <span class="keywordtype">size_t</span> szN;
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keywordflow">if</span> (!<a class="code" href="arygon_8c.html#a0cb9f0671c3d27abdc4b7e1ff5dee06c">arygon_list_devices</a> (pndd, 1, &szN)) {
<a name="l00092"></a>00092 DBG (<span class="stringliteral">"%s"</span>, <span class="stringliteral">"arygon_list_devices failed"</span>);
<a name="l00093"></a>00093 free (pndd);
<a name="l00094"></a>00094 <span class="keywordflow">return</span> NULL;
<a name="l00095"></a>00095 }
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordflow">if</span> (szN == 0) {
<a name="l00098"></a>00098 DBG (<span class="stringliteral">"%s"</span>, <span class="stringliteral">"No device found"</span>);
<a name="l00099"></a>00099 free (pndd);
<a name="l00100"></a>00100 <span class="keywordflow">return</span> NULL;
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103 <span class="keywordflow">return</span> pndd;
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keywordtype">bool</span>
<a name="l00107"></a><a class="code" href="arygon_8h.html#a0cb9f0671c3d27abdc4b7e1ff5dee06c">00107</a> <a class="code" href="arygon_8c.html#a0cb9f0671c3d27abdc4b7e1ff5dee06c">arygon_list_devices</a> (<a class="code" href="structnfc__device__desc__t.html" title="NFC device description.">nfc_device_desc_t</a> pnddDevices[], <span class="keywordtype">size_t</span> szDevices, <span class="keywordtype">size_t</span> * pszDeviceFound)
<a name="l00108"></a>00108 {
<a name="l00112"></a>00112 <span class="preprocessor">#ifndef SERIAL_AUTOPROBE_ENABLED</span>
<a name="l00113"></a>00113 <span class="preprocessor"></span> (void) pnddDevices;
<a name="l00114"></a>00114 (void) szDevices;
<a name="l00115"></a>00115 *pszDeviceFound = 0;
<a name="l00116"></a>00116 DBG (<span class="stringliteral">"%s"</span>, <span class="stringliteral">"Serial auto-probing have been disabled at compile time. Skipping autoprobe."</span>);
<a name="l00117"></a>00117 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00118"></a>00118 <span class="preprocessor">#else </span><span class="comment">/* SERIAL_AUTOPROBE_ENABLED */</span>
<a name="l00119"></a>00119 *pszDeviceFound = 0;
<a name="l00120"></a>00120
<a name="l00121"></a>00121 serial_port sp;
<a name="l00122"></a>00122 <span class="keyword">const</span> <span class="keywordtype">char</span> *pcPorts[] = DEFAULT_SERIAL_PORTS;
<a name="l00123"></a>00123 <span class="keyword">const</span> <span class="keywordtype">char</span> *pcPort;
<a name="l00124"></a>00124 <span class="keywordtype">int</span> iDevice = 0;
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="keywordflow">while</span> ((pcPort = pcPorts[iDevice++])) {
<a name="l00127"></a>00127 sp = uart_open (pcPort);
<a name="l00128"></a>00128 DBG (<span class="stringliteral">"Trying to find ARYGON device on serial port: %s at %d bauds."</span>, pcPort, SERIAL_DEFAULT_PORT_SPEED);
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="keywordflow">if</span> ((sp != INVALID_SERIAL_PORT) && (sp != CLAIMED_SERIAL_PORT)) {
<a name="l00131"></a>00131 uart_set_speed (sp, SERIAL_DEFAULT_PORT_SPEED);
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keywordflow">if</span> (!arygon_reset_tama((nfc_device_spec_t) sp))
<a name="l00134"></a>00134 <span class="keywordflow">continue</span>;
<a name="l00135"></a>00135 uart_close (sp);
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="comment">// ARYGON reader is found</span>
<a name="l00138"></a>00138 strncpy (pnddDevices[*pszDeviceFound].acDevice, <span class="stringliteral">"ARYGON"</span>, DEVICE_NAME_LENGTH - 1);
<a name="l00139"></a>00139 pnddDevices[*pszDeviceFound].<a class="code" href="structnfc__device__desc__t.html#a4ef2a14ef0b858ee15f40feba9270df0">acDevice</a>[DEVICE_NAME_LENGTH - 1] = <span class="charliteral">'\0'</span>;
<a name="l00140"></a>00140 pnddDevices[*pszDeviceFound].<a class="code" href="structnfc__device__desc__t.html#abbe6b78fa97f57c5a240317a34a990bd">pcDriver</a> = ARYGON_DRIVER_NAME;
<a name="l00141"></a>00141 pnddDevices[*pszDeviceFound].<a class="code" href="structnfc__device__desc__t.html#a9b3f82b85fd32737120b87c761f437cb">pcPort</a> = strdup (pcPort);
<a name="l00142"></a>00142 pnddDevices[*pszDeviceFound].<a class="code" href="structnfc__device__desc__t.html#a85e23285e26810f0ca4b5a4713b890b5">uiSpeed</a> = SERIAL_DEFAULT_PORT_SPEED;
<a name="l00143"></a>00143 DBG (<span class="stringliteral">"Device found: %s (%s)"</span>, pnddDevices[*pszDeviceFound].acDevice, pcPort);
<a name="l00144"></a>00144 (*pszDeviceFound)++;
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="comment">// Test if we reach the maximum "wanted" devices</span>
<a name="l00147"></a>00147 <span class="keywordflow">if</span> ((*pszDeviceFound) >= szDevices)
<a name="l00148"></a>00148 <span class="keywordflow">break</span>;
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150 <span class="preprocessor"># ifdef DEBUG</span>
<a name="l00151"></a>00151 <span class="preprocessor"></span> <span class="keywordflow">if</span> (sp == INVALID_SERIAL_PORT)
<a name="l00152"></a>00152 DBG (<span class="stringliteral">"Invalid serial port: %s"</span>, pcPort);
<a name="l00153"></a>00153 <span class="keywordflow">if</span> (sp == CLAIMED_SERIAL_PORT)
<a name="l00154"></a>00154 DBG (<span class="stringliteral">"Serial port already claimed: %s"</span>, pcPort);
<a name="l00155"></a>00155 <span class="preprocessor"># endif</span>
<a name="l00156"></a>00156 <span class="preprocessor"></span> <span class="comment">/* DEBUG */</span>
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 <span class="preprocessor">#endif </span><span class="comment">/* SERIAL_AUTOPROBE_ENABLED */</span>
<a name="l00159"></a>00159 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <a class="code" href="structnfc__device__t.html" title="NFC device information.">nfc_device_t</a> *
<a name="l00163"></a>00163 arygon_connect (<span class="keyword">const</span> <a class="code" href="structnfc__device__desc__t.html" title="NFC device description.">nfc_device_desc_t</a> * pndd)
<a name="l00164"></a>00164 {
<a name="l00165"></a>00165 serial_port sp;
<a name="l00166"></a>00166 <a class="code" href="structnfc__device__t.html" title="NFC device information.">nfc_device_t</a> *pnd = NULL;
<a name="l00167"></a>00167
<a name="l00168"></a>00168 DBG (<span class="stringliteral">"Attempt to connect to: %s at %d bauds."</span>, pndd-><a class="code" href="structnfc__device__desc__t.html#a9b3f82b85fd32737120b87c761f437cb">pcPort</a>, pndd-><a class="code" href="structnfc__device__desc__t.html#a85e23285e26810f0ca4b5a4713b890b5">uiSpeed</a>);
<a name="l00169"></a>00169 sp = uart_open (pndd-><a class="code" href="structnfc__device__desc__t.html#a9b3f82b85fd32737120b87c761f437cb">pcPort</a>);
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="keywordflow">if</span> (sp == INVALID_SERIAL_PORT)
<a name="l00172"></a>00172 ERR (<span class="stringliteral">"Invalid serial port: %s"</span>, pndd-><a class="code" href="structnfc__device__desc__t.html#a9b3f82b85fd32737120b87c761f437cb">pcPort</a>);
<a name="l00173"></a>00173 <span class="keywordflow">if</span> (sp == CLAIMED_SERIAL_PORT)
<a name="l00174"></a>00174 ERR (<span class="stringliteral">"Serial port already claimed: %s"</span>, pndd-><a class="code" href="structnfc__device__desc__t.html#a9b3f82b85fd32737120b87c761f437cb">pcPort</a>);
<a name="l00175"></a>00175 <span class="keywordflow">if</span> ((sp == CLAIMED_SERIAL_PORT) || (sp == INVALID_SERIAL_PORT))
<a name="l00176"></a>00176 <span class="keywordflow">return</span> NULL;
<a name="l00177"></a>00177
<a name="l00178"></a>00178 uart_set_speed (sp, pndd-><a class="code" href="structnfc__device__desc__t.html#a85e23285e26810f0ca4b5a4713b890b5">uiSpeed</a>);
<a name="l00179"></a>00179 <span class="keywordflow">if</span> (!arygon_reset_tama((nfc_device_spec_t) sp)) {
<a name="l00180"></a>00180 <span class="keywordflow">return</span> NULL;
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182
<a name="l00183"></a>00183 DBG (<span class="stringliteral">"Successfully connected to: %s"</span>, pndd-><a class="code" href="structnfc__device__desc__t.html#a9b3f82b85fd32737120b87c761f437cb">pcPort</a>);
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <span class="comment">// We have a connection</span>
<a name="l00186"></a>00186 pnd = malloc (<span class="keyword">sizeof</span> (<a class="code" href="structnfc__device__t.html" title="NFC device information.">nfc_device_t</a>));
<a name="l00187"></a>00187 <span class="keywordtype">char</span> acFirmware[10];
<a name="l00188"></a>00188 arygon_firmware((nfc_device_spec_t) sp, acFirmware);
<a name="l00189"></a>00189 snprintf (pnd-><a class="code" href="structnfc__device__t.html#a3933f0bea196fedca0345a7f940dc85b">acName</a>, DEVICE_NAME_LENGTH - 1, <span class="stringliteral">"%s %s (%s)"</span>, pndd-><a class="code" href="structnfc__device__desc__t.html#a4ef2a14ef0b858ee15f40feba9270df0">acDevice</a>, acFirmware, pndd-><a class="code" href="structnfc__device__desc__t.html#a9b3f82b85fd32737120b87c761f437cb">pcPort</a>);
<a name="l00190"></a>00190 pnd-><a class="code" href="structnfc__device__t.html#a3933f0bea196fedca0345a7f940dc85b">acName</a>[DEVICE_NAME_LENGTH - 1] = <span class="charliteral">'\0'</span>;
<a name="l00191"></a>00191 pnd-><a class="code" href="structnfc__device__t.html#ac38d710f875a0ffbee062569f513dfff">nc</a> = NC_PN532;
<a name="l00192"></a>00192 pnd-><a class="code" href="structnfc__device__t.html#a2cef5cf7a0f7590c2398bac39bef7bee">nds</a> = (nfc_device_spec_t) sp;
<a name="l00193"></a>00193 pnd-><a class="code" href="structnfc__device__t.html#ae89fdb258019e1c68073c31acc8a1367">bActive</a> = <span class="keyword">true</span>;
<a name="l00194"></a>00194
<a name="l00195"></a>00195 <span class="keywordflow">return</span> pnd;
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197
<a name="l00198"></a>00198 <span class="keywordtype">void</span>
<a name="l00199"></a>00199 arygon_disconnect (<a class="code" href="structnfc__device__t.html" title="NFC device information.">nfc_device_t</a> * pnd)
<a name="l00200"></a>00200 {
<a name="l00201"></a>00201 uart_close ((serial_port) pnd-><a class="code" href="structnfc__device__t.html#a2cef5cf7a0f7590c2398bac39bef7bee">nds</a>);
<a name="l00202"></a>00202 free (pnd);
<a name="l00203"></a>00203 }
<a name="l00204"></a>00204
<a name="l00205"></a>00205 <span class="preprocessor">#define TX_BUFFER_LENGTH (300)</span>
<a name="l00206"></a>00206 <span class="preprocessor"></span><span class="preprocessor">#define RX_BUFFER_LENGTH (PN53x_EXTENDED_FRAME_MAX_LEN + PN53x_EXTENDED_FRAME_OVERHEAD + sizeof(pn53x_ack_frame))</span>
<a name="l00207"></a>00207 <span class="preprocessor"></span><span class="keywordtype">bool</span>
<a name="l00208"></a>00208 arygon_transceive (<a class="code" href="structnfc__device__t.html" title="NFC device information.">nfc_device_t</a> * pnd, <span class="keyword">const</span> byte_t * pbtTx, <span class="keyword">const</span> <span class="keywordtype">size_t</span> szTx, byte_t * pbtRx, <span class="keywordtype">size_t</span> * pszRx)
<a name="l00209"></a>00209 {
<a name="l00210"></a>00210 byte_t abtTxBuf[TX_BUFFER_LENGTH] = { <a class="code" href="arygon_8c.html#a45a0db482af5440d539df261d112a6f5" title="Philips protocol (TAMA language) in binary format.">DEV_ARYGON_PROTOCOL_TAMA</a>, 0x00, 0x00, 0xff }; <span class="comment">// Every packet must start with "0x32 0x00 0x00 0xff"</span>
<a name="l00211"></a>00211 byte_t abtRxBuf[RX_BUFFER_LENGTH];
<a name="l00212"></a>00212 <span class="keywordtype">size_t</span> szRxBufLen;
<a name="l00213"></a>00213 <span class="keywordtype">size_t</span> szReplyMaxLen = MIN(RX_BUFFER_LENGTH, *pszRx);
<a name="l00214"></a>00214 <span class="keywordtype">size_t</span> szPos;
<a name="l00215"></a>00215 <span class="keywordtype">int</span> res;
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="comment">// Packet length = data length (len) + checksum (1) + end of stream marker (1)</span>
<a name="l00218"></a>00218 abtTxBuf[4] = szTx;
<a name="l00219"></a>00219 <span class="comment">// Packet length checksum</span>
<a name="l00220"></a>00220 abtTxBuf[5] = 256 - abtTxBuf[4];
<a name="l00221"></a>00221 <span class="comment">// Copy the PN53X command into the packet buffer</span>
<a name="l00222"></a>00222 memmove (abtTxBuf + 6, pbtTx, szTx);
<a name="l00223"></a>00223
<a name="l00224"></a>00224 <span class="comment">// Calculate data payload checksum</span>
<a name="l00225"></a>00225 abtTxBuf[szTx + 6] = 0;
<a name="l00226"></a>00226 <span class="keywordflow">for</span> (szPos = 0; szPos < szTx; szPos++) {
<a name="l00227"></a>00227 abtTxBuf[szTx + 6] -= abtTxBuf[szPos + 6];
<a name="l00228"></a>00228 }
<a name="l00229"></a>00229
<a name="l00230"></a>00230 <span class="comment">// End of stream marker</span>
<a name="l00231"></a>00231 abtTxBuf[szTx + 7] = 0;
<a name="l00232"></a>00232
<a name="l00233"></a>00233 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00234"></a>00234 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"TX"</span>, abtTxBuf, szTx + 8);
<a name="l00235"></a>00235 <span class="preprocessor">#endif</span>
<a name="l00236"></a>00236 <span class="preprocessor"></span> res = <a class="code" href="uart_8h.html#a39c415b8d6fa14b2168f2a35cbac48d0" title="Send pbtTx content to UART.">uart_send</a> ((serial_port) pnd-><a class="code" href="structnfc__device__t.html#a2cef5cf7a0f7590c2398bac39bef7bee">nds</a>, abtTxBuf, szTx + 8);
<a name="l00237"></a>00237 <span class="keywordflow">if</span> (res != 0) {
<a name="l00238"></a>00238 ERR (<span class="stringliteral">"%s"</span>, <span class="stringliteral">"Unable to transmit data. (TX)"</span>);
<a name="l00239"></a>00239 pnd-><a class="code" href="structnfc__device__t.html#a3cc2631649285ff97395e20d8abd1e6f">iLastError</a> = res;
<a name="l00240"></a>00240 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00241"></a>00241 }
<a name="l00242"></a>00242 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00243"></a>00243 <span class="preprocessor"></span> memset (abtRxBuf, 0x00, <span class="keyword">sizeof</span> (abtRxBuf));
<a name="l00244"></a>00244 <span class="preprocessor">#endif</span>
<a name="l00245"></a>00245 <span class="preprocessor"></span> szRxBufLen = szReplyMaxLen;
<a name="l00246"></a>00246 res = <a class="code" href="uart_8h.html#a51a4c4c363a0de96e1e9df399ae8b2f4" title="Receive data from UART and copy data to pbtRx.">uart_receive</a> ((serial_port) pnd-><a class="code" href="structnfc__device__t.html#a2cef5cf7a0f7590c2398bac39bef7bee">nds</a>, abtRxBuf, &szRxBufLen);
<a name="l00247"></a>00247 <span class="keywordflow">if</span> (res != 0) {
<a name="l00248"></a>00248 ERR (<span class="stringliteral">"%s"</span>, <span class="stringliteral">"Unable to receive data. (RX)"</span>);
<a name="l00249"></a>00249 pnd-><a class="code" href="structnfc__device__t.html#a3cc2631649285ff97395e20d8abd1e6f">iLastError</a> = res;
<a name="l00250"></a>00250 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00253"></a>00253 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"RX"</span>, abtRxBuf, szRxBufLen);
<a name="l00254"></a>00254 <span class="preprocessor">#endif</span>
<a name="l00255"></a>00255 <span class="preprocessor"></span>
<a name="l00256"></a>00256 <span class="comment">// WARN: UART is a per byte reception, so you usually receive ACK and next frame the same time</span>
<a name="l00257"></a>00257 <span class="keywordflow">if</span> (!pn53x_check_ack_frame_callback (pnd, abtRxBuf, szRxBufLen))
<a name="l00258"></a>00258 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00259"></a>00259
<a name="l00260"></a>00260 szRxBufLen -= <span class="keyword">sizeof</span> (pn53x_ack_frame);
<a name="l00261"></a>00261 memmove (abtRxBuf, abtRxBuf + <span class="keyword">sizeof</span> (pn53x_ack_frame), szRxBufLen);
<a name="l00262"></a>00262 szReplyMaxLen -= <span class="keyword">sizeof</span> (pn53x_ack_frame);
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="keywordflow">if</span> (szRxBufLen == 0) {
<a name="l00265"></a>00265 <span class="keywordflow">do</span> {
<a name="l00266"></a>00266 delay_ms (10);
<a name="l00267"></a>00267 szRxBufLen = szReplyMaxLen;
<a name="l00268"></a>00268 res = <a class="code" href="uart_8h.html#a51a4c4c363a0de96e1e9df399ae8b2f4" title="Receive data from UART and copy data to pbtRx.">uart_receive</a> ((serial_port) pnd-><a class="code" href="structnfc__device__t.html#a2cef5cf7a0f7590c2398bac39bef7bee">nds</a>, abtRxBuf, &szRxBufLen);
<a name="l00269"></a>00269 } <span class="keywordflow">while</span> (res != 0);
<a name="l00270"></a>00270 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00271"></a>00271 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"RX"</span>, abtRxBuf, szRxBufLen);
<a name="l00272"></a>00272 <span class="preprocessor">#endif</span>
<a name="l00273"></a>00273 <span class="preprocessor"></span> }
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="keywordflow">if</span> (!pn53x_check_error_frame_callback (pnd, abtRxBuf, szRxBufLen))
<a name="l00276"></a>00276 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00277"></a>00277
<a name="l00278"></a>00278 <span class="comment">// When the answer should be ignored, just return a successful result</span>
<a name="l00279"></a>00279 <span class="keywordflow">if</span> (pbtRx == NULL || pszRx == NULL)
<a name="l00280"></a>00280 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00281"></a>00281
<a name="l00282"></a>00282 <span class="comment">// Only succeed when the result is at least 00 00 FF xx Fx Dx xx .. .. .. xx 00 (x = variable)</span>
<a name="l00283"></a>00283 <span class="keywordflow">if</span> (szRxBufLen < 9)
<a name="l00284"></a>00284 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00285"></a>00285
<a name="l00286"></a>00286 <span class="comment">// Remove the preceding and appending bytes 00 00 ff 00 ff 00 00 00 FF xx Fx .. .. .. xx 00 (x = variable)</span>
<a name="l00287"></a>00287 *pszRx = szRxBufLen - 9;
<a name="l00288"></a>00288 memcpy (pbtRx, abtRxBuf + 7, *pszRx);
<a name="l00289"></a>00289
<a name="l00290"></a>00290 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00291"></a>00291 }
<a name="l00292"></a>00292
<a name="l00293"></a>00293 <span class="keywordtype">void</span>
<a name="l00294"></a>00294 arygon_firmware (<span class="keyword">const</span> nfc_device_spec_t nds, <span class="keywordtype">char</span> * str)
<a name="l00295"></a>00295 {
<a name="l00296"></a>00296 <span class="keyword">const</span> byte_t arygon_firmware_version_cmd[] = { <a class="code" href="arygon_8c.html#a393bb3414a9ad355e3a4ca0f49bda524" title="High level language in ASCII format. (Common µC commands and Mifare® commands)">DEV_ARYGON_PROTOCOL_ARYGON_ASCII</a>, <span class="charliteral">'a'</span>, <span class="charliteral">'v'</span> };
<a name="l00297"></a>00297 byte_t abtRx[RX_BUFFER_LENGTH];
<a name="l00298"></a>00298 <span class="keywordtype">size_t</span> szRx = 16;
<a name="l00299"></a>00299 <span class="keywordtype">int</span> res;
<a name="l00300"></a>00300
<a name="l00301"></a>00301 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00302"></a>00302 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"TX"</span>, arygon_firmware_version_cmd, <span class="keyword">sizeof</span> (arygon_firmware_version_cmd));
<a name="l00303"></a>00303 <span class="preprocessor">#endif</span>
<a name="l00304"></a>00304 <span class="preprocessor"></span> <a class="code" href="uart_8h.html#a39c415b8d6fa14b2168f2a35cbac48d0" title="Send pbtTx content to UART.">uart_send</a> ((serial_port) nds, arygon_firmware_version_cmd, <span class="keyword">sizeof</span> (arygon_firmware_version_cmd));
<a name="l00305"></a>00305
<a name="l00306"></a>00306 res = <a class="code" href="uart_8h.html#a51a4c4c363a0de96e1e9df399ae8b2f4" title="Receive data from UART and copy data to pbtRx.">uart_receive</a> ((serial_port) nds, abtRx, &szRx);
<a name="l00307"></a>00307 <span class="keywordflow">if</span> (res != 0) {
<a name="l00308"></a>00308 DBG (<span class="stringliteral">"Unable to retrieve ARYGON firmware version."</span>);
<a name="l00309"></a>00309 <span class="keywordflow">return</span>;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00312"></a>00312 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"RX"</span>, abtRx, szRx);
<a name="l00313"></a>00313 <span class="preprocessor">#endif</span>
<a name="l00314"></a>00314 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( 0 == memcmp (abtRx, arygon_error_none, 6)) {
<a name="l00315"></a>00315 byte_t * p = abtRx + 6;
<a name="l00316"></a>00316 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> szData;
<a name="l00317"></a>00317 sscanf ((<span class="keyword">const</span> <span class="keywordtype">char</span>*)p, <span class="stringliteral">"%02x%s"</span>, &szData, p);
<a name="l00318"></a>00318 memcpy (str, p, szData);
<a name="l00319"></a>00319 *(str + szData) = <span class="charliteral">'\0'</span>;
<a name="l00320"></a>00320 }
<a name="l00321"></a>00321 }
<a name="l00322"></a>00322
<a name="l00323"></a>00323 <span class="keywordtype">bool</span>
<a name="l00324"></a>00324 arygon_reset_tama (<span class="keyword">const</span> nfc_device_spec_t nds)
<a name="l00325"></a>00325 {
<a name="l00326"></a>00326 <span class="keyword">const</span> byte_t arygon_reset_tama_cmd[] = { <a class="code" href="arygon_8c.html#a393bb3414a9ad355e3a4ca0f49bda524" title="High level language in ASCII format. (Common µC commands and Mifare® commands)">DEV_ARYGON_PROTOCOL_ARYGON_ASCII</a>, <span class="charliteral">'a'</span>, <span class="charliteral">'r'</span> };
<a name="l00327"></a>00327 byte_t abtRx[RX_BUFFER_LENGTH];
<a name="l00328"></a>00328 <span class="keywordtype">size_t</span> szRx = 10; <span class="comment">// Attempted response is 10 bytes long</span>
<a name="l00329"></a>00329 <span class="keywordtype">int</span> res;
<a name="l00330"></a>00330
<a name="l00331"></a>00331 <span class="comment">// Sometimes the first byte we send is not well-transmited (ie. a previously sent data on a wrong baud rate can put some junk in buffer)</span>
<a name="l00332"></a>00332 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00333"></a>00333 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"TX"</span>, arygon_reset_tama_cmd, <span class="keyword">sizeof</span> (arygon_reset_tama_cmd));
<a name="l00334"></a>00334 <span class="preprocessor">#endif</span>
<a name="l00335"></a>00335 <span class="preprocessor"></span> <a class="code" href="uart_8h.html#a39c415b8d6fa14b2168f2a35cbac48d0" title="Send pbtTx content to UART.">uart_send</a> ((serial_port) nds, arygon_reset_tama_cmd, <span class="keyword">sizeof</span> (arygon_reset_tama_cmd));
<a name="l00336"></a>00336
<a name="l00337"></a>00337 <span class="comment">// Two reply are possible from ARYGON device: arygon_error_none (ie. in case the byte is well-sent)</span>
<a name="l00338"></a>00338 <span class="comment">// or arygon_error_unknown_mode (ie. in case of the first byte was bad-transmitted)</span>
<a name="l00339"></a>00339 res = <a class="code" href="uart_8h.html#a51a4c4c363a0de96e1e9df399ae8b2f4" title="Receive data from UART and copy data to pbtRx.">uart_receive</a> ((serial_port) nds, abtRx, &szRx);
<a name="l00340"></a>00340 <span class="keywordflow">if</span> (res != 0) {
<a name="l00341"></a>00341 DBG (<span class="stringliteral">"No reply to 'reset TAMA' command."</span>);
<a name="l00342"></a>00342 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00343"></a>00343 }
<a name="l00344"></a>00344 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00345"></a>00345 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"RX"</span>, abtRx, szRx);
<a name="l00346"></a>00346 <span class="preprocessor">#endif</span>
<a name="l00347"></a>00347 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( 0 == memcmp (abtRx, arygon_error_unknown_mode, <span class="keyword">sizeof</span> (arygon_error_unknown_mode) - 1)) {
<a name="l00348"></a>00348 <span class="comment">// HACK Here we are... the first byte wasn't sent as expected, so we resend the same command</span>
<a name="l00349"></a>00349 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00350"></a>00350 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"TX"</span>, arygon_reset_tama_cmd, <span class="keyword">sizeof</span> (arygon_reset_tama_cmd));
<a name="l00351"></a>00351 <span class="preprocessor">#endif</span>
<a name="l00352"></a>00352 <span class="preprocessor"></span> <a class="code" href="uart_8h.html#a39c415b8d6fa14b2168f2a35cbac48d0" title="Send pbtTx content to UART.">uart_send</a> ((serial_port) nds, arygon_reset_tama_cmd, <span class="keyword">sizeof</span> (arygon_reset_tama_cmd));
<a name="l00353"></a>00353 res = <a class="code" href="uart_8h.html#a51a4c4c363a0de96e1e9df399ae8b2f4" title="Receive data from UART and copy data to pbtRx.">uart_receive</a> ((serial_port) nds, abtRx, &szRx);
<a name="l00354"></a>00354 <span class="keywordflow">if</span> (res != 0) {
<a name="l00355"></a>00355 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00356"></a>00356 }
<a name="l00357"></a>00357 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00358"></a>00358 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"RX"</span>, abtRx, szRx);
<a name="l00359"></a>00359 <span class="preprocessor">#endif</span>
<a name="l00360"></a>00360 <span class="preprocessor"></span> }
<a name="l00361"></a>00361 <span class="keywordflow">if</span> (0 != memcmp (abtRx, arygon_error_none, <span class="keyword">sizeof</span> (arygon_error_none) - 1)) {
<a name="l00362"></a>00362 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00363"></a>00363 }
<a name="l00364"></a>00364
<a name="l00365"></a>00365 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00366"></a>00366 }
<a name="l00367"></a>00367
<a name="l00368"></a>00368 <span class="comment">/*</span>
<a name="l00369"></a>00369 <span class="comment">void</span>
<a name="l00370"></a>00370 <span class="comment">arygon_ack (const nfc_device_spec_t nds)</span>
<a name="l00371"></a>00371 <span class="comment">{</span>
<a name="l00372"></a>00372 <span class="comment"> byte_t abtRx[BUFFER_LENGTH];</span>
<a name="l00373"></a>00373 <span class="comment"> size_t szRx;</span>
<a name="l00374"></a>00374 <span class="comment">#ifdef DEBUG</span>
<a name="l00375"></a>00375 <span class="comment"> PRINT_HEX ("TX", arygon_ack_frame, sizeof (arygon_ack_frame));</span>
<a name="l00376"></a>00376 <span class="comment">#endif</span>
<a name="l00377"></a>00377 <span class="comment"> uart_send ((serial_port) nds, arygon_ack_frame, sizeof (arygon_ack_frame));</span>
<a name="l00378"></a>00378 <span class="comment"> uart_receive ((serial_port) nds, abtRx, &szRx);</span>
<a name="l00379"></a>00379 <span class="comment">#ifdef DEBUG</span>
<a name="l00380"></a>00380 <span class="comment"> PRINT_HEX ("RX", abtRx, szRx);</span>
<a name="l00381"></a>00381 <span class="comment">#endif</span>
<a name="l00382"></a>00382 <span class="comment"> // ARYGON device will send an arygon_error_incomplete_command when sending an</span>
<a name="l00383"></a>00383 <span class="comment"> // ACK frame, and I (Romuald) don't know if the command is sent to PN or not</span>
<a name="l00384"></a>00384 <span class="comment"> if (0 != memcmp (abtRx, arygon_error_incomplete_command, sizeof (arygon_error_incomplete_command) - 1)) {</span>
<a name="l00385"></a>00385 <span class="comment"> return false;</span>
<a name="l00386"></a>00386 <span class="comment"> }</span>
<a name="l00387"></a>00387 <span class="comment">}</span>
<a name="l00388"></a>00388 <span class="comment">*/</span>
<a name="l00389"></a>00389
<a name="l00390"></a>00390 <span class="keywordtype">bool</span>
<a name="l00391"></a><a class="code" href="arygon_8c.html#a7f0152c9bfca7dcb0b1f326d49cc2ed9">00391</a> <a class="code" href="arygon_8c.html#a7f0152c9bfca7dcb0b1f326d49cc2ed9">arygon_check_communication</a> (<span class="keyword">const</span> nfc_device_spec_t nds)
<a name="l00392"></a>00392 {
<a name="l00393"></a>00393 byte_t abtRx[RX_BUFFER_LENGTH];
<a name="l00394"></a>00394 <span class="keywordtype">size_t</span> szRx;
<a name="l00395"></a>00395 <span class="keyword">const</span> byte_t attempted_result[] = { 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, <span class="comment">// ACK</span>
<a name="l00396"></a>00396 0x00, 0x00, 0xff, 0x09, 0xf7, 0xd5, 0x01, 0x00, <span class="charliteral">'l'</span>, <span class="charliteral">'i'</span>, <span class="charliteral">'b'</span>, <span class="charliteral">'n'</span>, <span class="charliteral">'f'</span>, <span class="charliteral">'c'</span>, 0xbc, 0x00 }; <span class="comment">// Reply</span>
<a name="l00397"></a>00397 <span class="keywordtype">int</span> res;
<a name="l00398"></a>00398
<a name="l00400"></a>00400 <span class="keyword">const</span> byte_t pncmd_communication_test[] =
<a name="l00401"></a>00401 { <a class="code" href="arygon_8c.html#a45a0db482af5440d539df261d112a6f5" title="Philips protocol (TAMA language) in binary format.">DEV_ARYGON_PROTOCOL_TAMA</a>, <span class="comment">// Header to passthrough front ARYGON µC (== directly talk to PN53x)</span>
<a name="l00402"></a>00402 0x00, 0x00, 0xff, 0x09, 0xf7, 0xd4, 0x00, 0x00, <span class="charliteral">'l'</span>, <span class="charliteral">'i'</span>, <span class="charliteral">'b'</span>, <span class="charliteral">'n'</span>, <span class="charliteral">'f'</span>, <span class="charliteral">'c'</span>, 0xbe, 0x00 };
<a name="l00403"></a>00403
<a name="l00404"></a>00404 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00405"></a>00405 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"TX"</span>, pncmd_communication_test, <span class="keyword">sizeof</span> (pncmd_communication_test));
<a name="l00406"></a>00406 <span class="preprocessor">#endif</span>
<a name="l00407"></a>00407 <span class="preprocessor"></span> res = <a class="code" href="uart_8h.html#a39c415b8d6fa14b2168f2a35cbac48d0" title="Send pbtTx content to UART.">uart_send</a> ((serial_port) nds, pncmd_communication_test, <span class="keyword">sizeof</span> (pncmd_communication_test));
<a name="l00408"></a>00408 <span class="keywordflow">if</span> (res != 0) {
<a name="l00409"></a>00409 ERR (<span class="stringliteral">"%s"</span>, <span class="stringliteral">"Unable to transmit data. (TX)"</span>);
<a name="l00410"></a>00410 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00411"></a>00411 }
<a name="l00412"></a>00412
<a name="l00413"></a>00413 res = <a class="code" href="uart_8h.html#a51a4c4c363a0de96e1e9df399ae8b2f4" title="Receive data from UART and copy data to pbtRx.">uart_receive</a> ((serial_port) nds, abtRx, &szRx);
<a name="l00414"></a>00414 <span class="keywordflow">if</span> (res != 0) {
<a name="l00415"></a>00415 ERR (<span class="stringliteral">"%s"</span>, <span class="stringliteral">"Unable to receive data. (RX)"</span>);
<a name="l00416"></a>00416 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00417"></a>00417 }
<a name="l00418"></a>00418 <span class="preprocessor">#ifdef DEBUG</span>
<a name="l00419"></a>00419 <span class="preprocessor"></span> PRINT_HEX (<span class="stringliteral">"RX"</span>, abtRx, szRx);
<a name="l00420"></a>00420 <span class="preprocessor">#endif</span>
<a name="l00421"></a>00421 <span class="preprocessor"></span>
<a name="l00422"></a>00422 <span class="keywordflow">if</span> (0 != memcmp (abtRx, attempted_result, <span class="keyword">sizeof</span> (attempted_result))) {
<a name="l00423"></a>00423 DBG (<span class="stringliteral">"%s"</span>, <span class="stringliteral">"Communication test failed, result doesn't match to attempted one."</span>);
<a name="l00424"></a>00424 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00425"></a>00425 }
<a name="l00426"></a>00426 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00427"></a>00427 }
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