Linux下通过串口收发短信源码

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 /* ******************************************************************************** * * * * 嵌入式资源免费下载专区: http://www.2beanet.com * * * * * * ******************************************************************************** */ // this is a test about GPRS #include #include #include #include // open() close() #include // read() write() #include // set baud rate #include #include #include #include #define FUNC_RUN 0 #define FUNC_NOT_RUN 1 #define SIMPLE_TEST 1 #define READ_SIM_CARD_ID 2 #define MAKE_A_CALL 3 #define WAIT_A_CALL 4 #define SHORT_MESSAGE 5 #define FUNC_QUIT 6 #define SEND_SHORT_MESSAGE 1 #define READ_SHORT_MESSAGE 2 #define CONFIG_SHORT_MESSAGE_ENV 3 #define QUIT_SHORT_MESSAGE 4 #define DEVICE_TTYS "/dev/ttyS0" #define MAX_LEN_OF_SHORT_MESSAGE 140 #define RECEIVE_BUF_WAIT_1S 1 #define RECEIVE_BUF_WAIT_2S 2 #define RECEIVE_BUF_WAIT_3S 3 #define RECEIVE_BUF_WAIT_4S 4 #define RECEIVE_BUF_WAIT_5S 5 //------------------------------------- read datas from GSM/GPRS --------------------------- // succese return 1 // error return 0 int read_GSM_GPRS_datas(int fd, char *rcv_buf,int rcv_wait) { int retval; fd_set rfds; struct timeval tv; int ret,pos; tv.tv_sec = rcv_wait; // wait 2.5s tv.tv_usec = 0; pos = 0; // point to rceeive buf while (1) { FD_ZERO(&rfds); FD_SET(fd, &rfds); retval = select(fd+1 , &rfds, NULL, NULL, &tv); if (retval == -1) { perror("select()"); break; } Linux下通过串口收发短信源码.c 2010-3-26 20:53 Page 1 of 6 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 else if (retval) {// pan duan shi fou hai you shu ju ret = read(fd, rcv_buf+pos, 2048); pos += ret; if (rcv_buf[pos-2] == '\r' && rcv_buf[pos-1] == '\n') { FD_ZERO(&rfds); FD_SET(fd, &rfds); retval = select(fd+1 , &rfds, NULL, NULL, &tv); if (!retval) break;// no datas, break } } else { printf("No data\n"); break; } } return 1; } // end read_GSM_GPRS_datas //------------------------------------- send cmd ------------------------------------------- // succese return 1 // error return 0 int send_GSM_GPRS_cmd(int fd, char *send_buf) { ssize_t ret; ret = write(fd,send_buf,strlen(send_buf)); if (ret == -1) { printf ("write device %s error\n", DEVICE_TTYS); return -1; } return 1; } // end send_GSM_GPRS_cmd //------------------------------------- send cmd and read back result ---------------------- void GSM_GPRS_send_cmd_read_result(int fd, char *send_buf, int rcv_wait) { char rcv_buf[2048]; if((send_buf==NULL) || (send_GSM_GPRS_cmd(fd,send_buf))) { // send success , then read bzero(rcv_buf,sizeof(rcv_buf)); if (read_GSM_GPRS_datas(fd,rcv_buf,rcv_wait)) { printf ("%s\n",rcv_buf); } else { printf ("read error\n"); } } else { printf("write error\n"); } } // end GSM_GPRS_send_cmd_read_result //------------------------------------- send cmd : "at" to GSM/GPRS MODEM ------------------ void GSM_simple_test(int fd) { char *send_buf="at\r"; GSM_GPRS_send_cmd_read_result(fd,send_buf,RECEIVE_BUF_WAIT_1S); } // end GSM_simple_test //------------------------------------- send cmd : "at+ccid" to GSM/GPRS MODEM ------------- Linux下通过串口收发短信源码.c 2010-3-26 20:53 Page 2 of 6 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 void GSM_read_sim_card_id(int fd) { char *send_buf="at+ccid\r"; GSM_GPRS_send_cmd_read_result(fd,send_buf,RECEIVE_BUF_WAIT_1S); } // end GSM_read_sim_card_id //------------------------------------- send cmd : "atd;" to GSM/GPRS MODEM ------- //------------------------------------- finish call, send cmd: "ath" to GSM MODEM --------- void GSM_call(int fd) { char send_buf[17]; char *send_cmd_ath = "ath\r"; int i; // input telephone number bzero(send_buf,sizeof(send_buf)); send_buf[0]='a'; send_buf[1]='t'; send_buf[2]='d'; send_buf[16] = '\0'; printf("please input telephone number:"); i = 3; while (1) { send_buf[i]=getchar(); if (send_buf[i]=='\n') break; i++; } send_buf[i]=';'; send_buf[i+1]='\r'; // end input telphone number // send cmd GSM_GPRS_send_cmd_read_result(fd,send_buf,RECEIVE_BUF_WAIT_1S); //quit call printf("press ENTER for quit:"); getchar(); // send cmd GSM_GPRS_send_cmd_read_result(fd,send_cmd_ath,RECEIVE_BUF_WAIT_1S); } // end GSM_call //------------------------------------- wait for GSM/GPRS call signal ---------------------- void GSM_wait_call(int fd) { char rcv_buf[2048]; char *send_cmd_ath = "ath\r"; int wait_RING; wait_RING = 10; while (wait_RING!=0) { bzero(rcv_buf,sizeof(rcv_buf)); if (read_GSM_GPRS_datas(fd,rcv_buf,RECEIVE_BUF_WAIT_1S)) { printf ("%s\n",rcv_buf); } else { printf ("read error\n"); } wait_RING--; } GSM_GPRS_send_cmd_read_result(fd,send_cmd_ath,RECEIVE_BUF_WAIT_1S); printf("quit wait_call\n"); Linux下通过串口收发短信源码.c 2010-3-26 20:53 Page 3 of 6 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 } // end GSM_wait_call //------------------------------------- GSM/GPRS send short message ------------------------ void GSM_Send_Message(int fd) { char cmd_buf[23]; char short_message_buf[MAX_LEN_OF_SHORT_MESSAGE]; int i; char rcv_buf; bzero(cmd_buf,sizeof(cmd_buf)); bzero(short_message_buf,sizeof(short_message_buf)); printf ("send short message:\n"); cmd_buf[0]='a'; cmd_buf[1]='t'; cmd_buf[2]='+'; cmd_buf[3]='c'; cmd_buf[4]='m'; cmd_buf[5]='g'; cmd_buf[6]='s'; cmd_buf[7]='='; cmd_buf[8]='"'; printf ("please input telephone number:"); i = 9; while (1) { cmd_buf[i]=getchar(); if (cmd_buf[i]=='\n') break; i++; } cmd_buf[i]='"'; cmd_buf[i+1]='\r'; cmd_buf[i+2]='\0'; // send cmd : at+cmgs="(telephone number)" GSM_GPRS_send_cmd_read_result(fd,cmd_buf,RECEIVE_BUF_WAIT_1S); // input short message printf("please input short message:"); i = 0; while(i < MAX_LEN_OF_SHORT_MESSAGE-2) { short_message_buf[i] = getchar(); if (short_message_buf[i]=='\n') break; i++; } short_message_buf[i] = 0x1A; short_message_buf[i+1] = '\r'; short_message_buf[i+2] = '\0'; // send short message GSM_GPRS_send_cmd_read_result(fd, short_message_buf,RECEIVE_BUF_WAIT_4S); printf("\nend send short message\n"); } // end GSM_Send_Message //------------------------------------- GSM/GPRS read all short message -------------------- void GSM_Read_Message(int fd) { char *send_buf="at+cmgl=\"ALL\"\r"; char rcv_buf[2048]; GSM_GPRS_send_cmd_read_result(fd,send_buf,RECEIVE_BUF_WAIT_3S); printf("end read all short message\n"); } // end GSM_Read_Message //------------------------------------- GSM/GPRS Config short message env ------------------ void GSM_Conf_Message(int fd) Linux下通过串口收发短信源码.c 2010-3-26 20:53 Page 4 of 6 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 { char *send_buf="at+cmgf=1\r"; char *send_center_buf="at+csca=\"+8613800250500\"\r"; GSM_GPRS_send_cmd_read_result(fd,send_buf,RECEIVE_BUF_WAIT_1S); // set short message center number GSM_GPRS_send_cmd_read_result(fd,send_center_buf,RECEIVE_BUF_WAIT_1S); printf("end config short message env\n"); } // end GSM_Conf_Message //------------------------------------- GSM/GPRS short message ----------------------------- void GSM_short_mesg(int fd) { int flag_sm_run, flag_sm_select; flag_sm_run = FUNC_RUN; while (flag_sm_run == FUNC_RUN) { printf ("\n Select:\n"); printf ("1 : Send short message \n"); printf ("2 : Read all short message \n"); printf ("3 : Config short message env\n"); printf ("4 : quit\n"); printf (">"); scanf("%d",&flag_sm_select); getchar(); // temp // printf ("input select:%d\n",flag_sm_select); // end temp switch (flag_sm_select) { case SEND_SHORT_MESSAGE : { GSM_Send_Message(fd); case READ_SHORT_MESSAGE : { GSM_Read_Message(fd); case CONFIG_SHORT_MESSAGE_ENV : { GSM_Conf_Message(fd); case QUIT_SHORT_MESSAGE : { flag_sm_run = FUNC_NOT_RUN default : { printf("please input your select use 1 to 3\n"); } } } printf ("\n"); } // end GSM_send_mesg //------------------------------------- print ---------------------------------------------- void print_prompt(void) { printf ("Select what you want to do:\n"); printf ("1 : Simple Test\n"); printf ("2 : Read SIM CARD ID\n"); printf ("3 : Make A Call\n"); printf ("4 : Wait A Call\n"); printf ("5 : Short message\n"); printf ("6 : Quit\n"); printf (">"); } // end print_prompt //------------------------------------- Control GSM/GPRS MODULE ---------------------------- void func_GSM(int fd) { int flag_func_run; int flag_select_func; ssize_t ret; flag_func_run = FUNC_RUN; while (flag_func_run == FUNC_RUN) { print_prompt(); // print select functions scanf("%d",&flag_select_func); // user input select getchar(); Linux下通过串口收发短信源码.c 2010-3-26 20:53 Page 5 of 6 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 switch(flag_select_func) { case SIMPLE_TEST : {GSM_simple_test(fd); break;} case READ_SIM_CARD_ID : {GSM_read_sim_card_id(fd); break;} case MAKE_A_CALL : {GSM_call(fd); break;} case WAIT_A_CALL : {GSM_wait_call(fd); break;} case SHORT_MESSAGE : {GSM_short_mesg(fd); break;} case FUNC_QUIT : { flag_func_run = FUNC_NOT_RUN; printf("Quit GSM/GPRS function. byeb break; } default : { printf("please input your select use 1 to 7\n"); } } } }// end func_GPRS //------------------------------------- init seriel port ---------------------------------- void init_ttyS(int fd) { struct termios options; bzero(&options, sizeof(options)); // clear options cfsetispeed(&options,B9600); // setup baud rate cfsetospeed(&options,B9600); options.c_cflag |= (CRTSCTS | CS8 | CLOCAL | CREAD); options.c_iflag = IGNPAR; tcflush(fd, TCIFLUSH); tcsetattr(fd, TCSANOW, &options); }//end init_ttyS //------------------------------------- main ----------------------------------------------- int main(void) { int fd; printf("\nGSM/GPRS TESTS\n\n"); // open seriel port fd = open(DEVICE_TTYS, O_RDWR); if (fd == -1) { printf("open device %s error\n",DEVICE_TTYS); } else { init_ttyS(fd); // init device func_GSM(fd); // GSM/GPRS functions // close ttyS0 if (close(fd)!=0) printf("close device %s error",DEVICE_TTYS); } return 0; }// end main Linux下通过串口收发短信源码.c 2010-3-26 20:53 Page 6 of 6