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00027 #include "asterisk.h"
00028
00029 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 114904 $")
00030
00031 #include "asterisk/file.h"
00032 #include "asterisk/channel.h"
00033 #include "asterisk/pbx.h"
00034 #include "asterisk/module.h"
00035 #include "asterisk/indications.h"
00036
00037 static char *app_morsecode = "Morsecode";
00038
00039 static char *morsecode_synopsis = "Plays morse code";
00040
00041 static char *morsecode_descrip =
00042 " Morsecode(<string>):\n"
00043 "Plays the Morse code equivalent of the passed string. If the variable\n"
00044 "MORSEDITLEN is set, it will use that value for the length (in ms) of the dit\n"
00045 "(defaults to 80). Additionally, if MORSETONE is set, it will use that tone\n"
00046 "(in Hz). The tone default is 800.\n";
00047
00048
00049 static char *morsecode[] = {
00050 "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "",
00051 "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "",
00052 " ",
00053 ".-.-.-",
00054 ".-..-.",
00055 "",
00056 "",
00057 "",
00058 "",
00059 ".----.",
00060 "-.--.-",
00061 "-.--.-",
00062 "",
00063 "",
00064 "--..--",
00065 "-....-",
00066 ".-.-.-",
00067 "-..-.",
00068 "-----", ".----", "..---", "...--", "....-", ".....", "-....", "--...", "---..", "----.",
00069 "---...",
00070 "-.-.-.",
00071 "",
00072 "-...-",
00073 "",
00074 "..--..",
00075 ".--.-.",
00076 ".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---", "-.-", ".-..", "--",
00077 "-.", "---", ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--..",
00078 "-.--.-",
00079 "-..-.",
00080 "-.--.-",
00081 "",
00082 "..--.-",
00083 ".----.",
00084 ".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---", "-.-", ".-..", "--",
00085 "-.", "---", ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--..",
00086 "-.--.-",
00087 "",
00088 "-.--.-",
00089 "-..-.",
00090 ". . .",
00091 };
00092
00093 static void playtone(struct ast_channel *chan, int tone, int len)
00094 {
00095 char dtmf[20];
00096 snprintf(dtmf, sizeof(dtmf), "%d/%d", tone, len);
00097 ast_playtones_start(chan, 0, dtmf, 0);
00098 ast_safe_sleep(chan, len);
00099 ast_playtones_stop(chan);
00100 }
00101
00102 static int morsecode_exec(struct ast_channel *chan, void *data)
00103 {
00104 int res=0, ditlen, tone;
00105 char *digit;
00106 const char *ditlenc, *tonec;
00107
00108 if (ast_strlen_zero(data)) {
00109 ast_log(LOG_WARNING, "Syntax: Morsecode(<string>) - no argument found\n");
00110 return 0;
00111 }
00112
00113
00114 ast_channel_lock(chan);
00115 ditlenc = pbx_builtin_getvar_helper(chan, "MORSEDITLEN");
00116 if (ast_strlen_zero(ditlenc) || (sscanf(ditlenc, "%d", &ditlen) != 1)) {
00117 ditlen = 80;
00118 }
00119 ast_channel_unlock(chan);
00120
00121
00122 ast_channel_lock(chan);
00123 tonec = pbx_builtin_getvar_helper(chan, "MORSETONE");
00124 if (ast_strlen_zero(tonec) || (sscanf(tonec, "%d", &tone) != 1)) {
00125 tone = 800;
00126 }
00127 ast_channel_unlock(chan);
00128
00129 for (digit = data; *digit; digit++) {
00130 int digit2 = *digit;
00131 char *dahdit;
00132 if (digit2 < 0) {
00133 continue;
00134 }
00135 for (dahdit = morsecode[digit2]; *dahdit; dahdit++) {
00136 if (*dahdit == '-') {
00137 playtone(chan, tone, 3 * ditlen);
00138 } else if (*dahdit == '.') {
00139 playtone(chan, tone, 1 * ditlen);
00140 } else {
00141
00142 playtone(chan, 0, 2 * ditlen);
00143 }
00144
00145
00146 playtone(chan, 0, 1 * ditlen);
00147 }
00148
00149 playtone(chan, 0, 2 * ditlen);
00150 }
00151
00152 return res;
00153 }
00154
00155 static int unload_module(void)
00156 {
00157 return ast_unregister_application(app_morsecode);
00158 }
00159
00160 static int load_module(void)
00161 {
00162 return ast_register_application(app_morsecode, morsecode_exec, morsecode_synopsis, morsecode_descrip);
00163 }
00164
00165 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Morse code");