A simple project for sending button input up to AT&T Flow
Dependencies: FXOS8700CQ MODSERIAL mbed
For instructions on using this program, see the AT&T Starter Kit tutorial on it.
Diff: wnc_control.cpp
- Revision:
- 46:da9d788f5d5a
- Parent:
- 45:a836eecd5d12
- Child:
- 53:dcccf2881fa0
diff -r a836eecd5d12 -r da9d788f5d5a wnc_control.cpp --- a/wnc_control.cpp Sun Jul 24 17:50:42 2016 +0000 +++ b/wnc_control.cpp Sun Jul 24 19:33:23 2016 +0000 @@ -15,7 +15,8 @@ enum WNC_ERR_e { WNC_OK =0, WNC_CMD_ERR = -1, - WNC_NO_RESPONSE = -2 + WNC_NO_RESPONSE = -2, + WNC_CELL_LINK_DOWN = -3 }; // Contains result of last call to send_wnc_cmd(..) @@ -64,7 +65,7 @@ // wait_ms(31000); // at_send_wnc_cmd("AT+CFUN=1,0", &pRespStr, WNC_TIMEOUT_MS); // wait_ms(31000); - WNC_MDM_ERR = WNC_NO_RESPONSE; + WNC_MDM_ERR = WNC_CELL_LINK_DOWN; } } while (WNC_MDM_ERR != WNC_OK); } @@ -82,8 +83,6 @@ else if (WNC_MDM_ERR == WNC_CMD_ERR) { pc.puts("Bad URL!!!!!!\r\n"); - MyServerIpAddress = "192.168.0.1"; - WNC_MDM_ERR = WNC_OK; } } while (WNC_MDM_ERR != WNC_OK); @@ -224,13 +223,14 @@ string * pRespStr; size_t pos; int regSts; + int cmdRes1, cmdRes2; pc.puts("<-------- Begin Cell Status ------------\r\n"); - - at_send_wnc_cmd("AT+CSQ", &pRespStr, WNC_TIMEOUT_MS); // Check RSSI,BER - at_send_wnc_cmd("AT+CPIN?", &pRespStr, WNC_TIMEOUT_MS); // Check if SIM locked - - if (WNC_MDM_ERR == WNC_NO_RESPONSE) + + cmdRes1 = at_send_wnc_cmd("AT+CSQ", &pRespStr, WNC_TIMEOUT_MS); // Check RSSI,BER + cmdRes2 = at_send_wnc_cmd("AT+CPIN?", &pRespStr, WNC_TIMEOUT_MS); // Check if SIM locked + + if ((cmdRes1 != 0) && (cmdRes2 != 0)) { pc.puts("------------ WNC No Response! --------->\r\n"); return (-2); @@ -244,7 +244,7 @@ } // SIM card OK, now check for signal and cellular network registration - at_send_wnc_cmd("AT+CREG?", &pRespStr, WNC_TIMEOUT_MS); // Check if registered on network + cmdRes1 = at_send_wnc_cmd("AT+CREG?", &pRespStr, WNC_TIMEOUT_MS); // Check if registered on network pos = pRespStr->find("CREG: "); if (pos != string::npos) { @@ -267,6 +267,8 @@ // Sets a global with failure or success, assumes 1 thread all the time int send_wnc_cmd(const char * s, string ** r, int ms_timeout) { + int cmdRes; + if (check_wnc_ready() < 0) { static string noRespStr; @@ -274,14 +276,25 @@ pc.puts("FAIL send cmd: "); pc.puts(truncStr.c_str()); pc.puts("\r\n"); - WNC_MDM_ERR = WNC_NO_RESPONSE; + WNC_MDM_ERR = WNC_CELL_LINK_DOWN; noRespStr.erase(); *r = &noRespStr; - return (-2); + return (-3); } // If WNC ready, send user command - return (at_send_wnc_cmd(s, r, ms_timeout)); + cmdRes = at_send_wnc_cmd(s, r, ms_timeout); + + if (cmdRes == -1) + WNC_MDM_ERR = WNC_CMD_ERR; + + if (cmdRes == -2) + WNC_MDM_ERR = WNC_NO_RESPONSE; + + if (cmdRes == 0) + WNC_MDM_ERR = WNC_OK; + + return (cmdRes); } int at_send_wnc_cmd(const char * s, string ** r, int ms_timeout) @@ -313,17 +326,12 @@ pc.puts("]\n\r"); if (res > 0) - { - if (WNC_MDM_ERR != WNC_NO_RESPONSE) - WNC_MDM_ERR = WNC_CMD_ERR; return -1; - } else return 0; } else { - WNC_MDM_ERR = WNC_NO_RESPONSE; pc.puts("No response from WNC!\n\r"); return -2; } @@ -342,6 +350,7 @@ static bool intSet = false; static bool sockDialSet = false; string * pRespStr; + int cmdRes; if (hardReset == true) { @@ -351,22 +360,27 @@ sockDialSet = false; } - WNC_MDM_ERR = WNC_OK; // Below commands will re-establish error state pc.puts("Start AT init of WNC:\r\n"); // Quick commands below do not need to check cellular connectivity - at_send_wnc_cmd("AT", &pRespStr, WNC_TIMEOUT_MS); // Heartbeat? - at_send_wnc_cmd("ATE0", &pRespStr, WNC_TIMEOUT_MS); // Echo Off - at_send_wnc_cmd("AT+CMEE=2", &pRespStr, WNC_TIMEOUT_MS); // 2 - verbose error, 1 - numeric error, 0 - just ERROR + cmdRes = at_send_wnc_cmd("AT", &pRespStr, WNC_TIMEOUT_MS); // Heartbeat? + cmdRes += at_send_wnc_cmd("ATE0", &pRespStr, WNC_TIMEOUT_MS); // Echo Off + cmdRes += at_send_wnc_cmd("AT+CMEE=2", &pRespStr, WNC_TIMEOUT_MS); // 2 - verbose error, 1 - numeric error, 0 - just ERROR // If the simple commands are not working no chance of more complex. // I have seen re-trying commands make it worse. - if (WNC_MDM_ERR != WNC_OK) + if (cmdRes < 0) + { + // Since I used the at_send_wnc_cmd I am setting the error state based upon + // the responses. And since these are simple commands, even if the WNC + // is saying ERROR, treat it like a no response. + WNC_MDM_ERR = WNC_NO_RESPONSE; return ; + } - if ((WNC_MDM_ERR == WNC_OK) && (intSet == false)) - send_wnc_cmd("AT@INTERNET=1", &pRespStr, WNC_TIMEOUT_MS); + if (intSet == false) + cmdRes = send_wnc_cmd("AT@INTERNET=1", &pRespStr, WNC_TIMEOUT_MS); - if (WNC_MDM_ERR == WNC_OK) + if (cmdRes == 0) intSet = true; else return ; @@ -376,18 +390,18 @@ string cmd_str("AT%PDNSET=1,"); cmd_str += MY_APN_STR; cmd_str += ",IP"; - send_wnc_cmd(cmd_str.c_str(), &pRespStr, 4*WNC_TIMEOUT_MS); // Set APN, cmd seems to take a little longer sometimes + cmdRes = send_wnc_cmd(cmd_str.c_str(), &pRespStr, 4*WNC_TIMEOUT_MS); // Set APN, cmd seems to take a little longer sometimes } - if (WNC_MDM_ERR == WNC_OK) + if (cmdRes == 0) pdnSet = true; else return ; if (sockDialSet == false) - send_wnc_cmd("AT@SOCKDIAL=1", &pRespStr, WNC_TIMEOUT_MS); + cmdRes = send_wnc_cmd("AT@SOCKDIAL=1", &pRespStr, WNC_TIMEOUT_MS); - if (WNC_MDM_ERR == WNC_OK) + if (cmdRes == 0) sockDialSet = true; else return ; @@ -418,7 +432,7 @@ string * pRespStr; string str(s); str = "AT@DNSRESVDON=\"" + str + "\""; - if (send_wnc_cmd(str.c_str(), &pRespStr, WNC_TIMEOUT_MS) == 0) + if (send_wnc_cmd(str.c_str(), &pRespStr, 15000) == 0) { size_t pos_start = pRespStr->find(":\"") + 2; size_t pos_end = pRespStr->rfind("\"") - 1;