Rearrange stuff so it makes more sense

TinyGsmClientSIM800.h

@@ -191,6 +191,7 @@ public:
   }
 
   bool autoBaud(unsigned long timeout = 10000L) {
+    streamWrite(GF("AAAAAAA"));  // extra A's to help detect the baud rate
     for (unsigned long start = millis(); millis() - start < timeout; ) {
       sendAT(GF(""));
       if (waitResponse(200) == 1) {
@@ -262,7 +263,7 @@ public:
   }
 
   /*
-   * SIM card & Networ Operator functions
+   * SIM card functions
    */
 
   bool simUnlock(const char *pin) {
@@ -292,85 +293,6 @@ public:
     return res;
   }
 
-  int getSignalQuality() {
-    sendAT(GF("+CSQ"));
-    if (waitResponse(GF(GSM_NL "+CSQ:")) != 1) {
-      return 99;
-    }
-    int res = stream.readStringUntil(',').toInt();
-    waitResponse();
-    return res;
-  }
-
-  String getGsmLocation() {
-    sendAT(GF("+CIPGSMLOC=1,1"));
-    if (waitResponse(GF(GSM_NL "+CIPGSMLOC:")) != 1) {
-      return "";
-    }
-    String res = stream.readStringUntil('\n');
-    waitResponse();
-    res.trim();
-    return res;
-  }
-
-  bool setGsmBusy(bool busy = true) {
-    sendAT(GF("+GSMBUSY="), busy ? 1 : 0);
-    return waitResponse() == 1;
-  }
-
-  bool callAnswer() {
-    sendAT(GF("A"));
-    return waitResponse() == 1;
-  }
-
-  bool callNumber(const String& number) {
-    sendAT(GF("D"), number);
-    return waitResponse() == 1;
-  }
-
-  bool callHangup(const String& number) {
-    sendAT(GF("H"), number);
-    return waitResponse() == 1;
-  }
-
-  bool sendSMS(const String& number, const String& text) {
-    sendAT(GF("+CMGF=1"));
-    waitResponse();
-    sendAT(GF("+CMGS=\""), number, GF("\""));
-    if (waitResponse(GF(">")) != 1) {
-      return false;
-    }
-    stream.print(text);
-    stream.write((char)0x1A);
-    return waitResponse(60000L) == 1;
-  }
-
-  bool sendSMS_UTF16(const String& number, const void* text, size_t len) {
-    sendAT(GF("+CMGF=1"));
-    waitResponse();
-    sendAT(GF("+CSCS=\"HEX\""));
-    waitResponse();
-    sendAT(GF("+CSMP=17,167,0,8"));
-    waitResponse();
-
-    sendAT(GF("+CMGS=\""), number, GF("\""));
-    if (waitResponse(GF(">")) != 1) {
-      return false;
-    }
-
-    uint16_t* t = (uint16_t*)text;
-    for (size_t i=0; i<len; i++) {
-      uint8_t c = t[i] >> 8;
-      if (c < 0x10) { stream.print('0'); }
-      stream.print(c, HEX);
-      c = t[i] & 0xFF;
-      if (c < 0x10) { stream.print('0'); }
-      stream.print(c, HEX);
-    }
-    stream.write((char)0x1A);
-    return waitResponse(60000L) == 1;
-  }
-
   SimStatus getSimStatus(unsigned long timeout = 10000L) {
     for (unsigned long start = millis(); millis() - start < timeout; ) {
       sendAT(GF("+CPIN?"));
@@ -412,13 +334,25 @@ public:
     return res;
   }
 
+ /*
+  * Generic network functions
+  */
+
+  int getSignalQuality() {
+    sendAT(GF("+CSQ"));
+    if (waitResponse(GF(GSM_NL "+CSQ:")) != 1) {
+      return 99;
+    }
+    int res = stream.readStringUntil(',').toInt();
+    waitResponse();
+    return res;
+  }
+
   bool waitForNetwork(unsigned long timeout = 60000L) {
     for (unsigned long start = millis(); millis() - start < timeout; ) {
       RegStatus s = getRegistrationStatus();
       if (s == REG_OK_HOME || s == REG_OK_ROAMING) {
         return true;
-      } else if (s == REG_UNREGISTERED) {
-        return false;
       }
       delay(1000);
     }
@@ -515,20 +449,86 @@ public:
    * Phone Call functions
    */
 
+  bool setGsmBusy(bool busy = true) {
+    sendAT(GF("+GSMBUSY="), busy ? 1 : 0);
+    return waitResponse() == 1;
+  }
+
+  bool callAnswer() {
+    sendAT(GF("A"));
+    return waitResponse() == 1;
+  }
+
+  bool callNumber(const String& number) {
+    sendAT(GF("D"), number);
+    return waitResponse() == 1;
+  }
+
+  bool callHangup(const String& number) {
+    sendAT(GF("H"), number);
+    return waitResponse() == 1;
+  }
+
   /*
    * Messaging functions
    */
 
+  // TODO
   void sendUSSD() {
   }
 
-  void sendSMS() {
+  bool sendSMS(const String& number, const String& text) {
+    sendAT(GF("+CMGF=1"));
+    waitResponse();
+    sendAT(GF("+CMGS=\""), number, GF("\""));
+    if (waitResponse(GF(">")) != 1) {
+      return false;
+    }
+    stream.print(text);
+    stream.write((char)0x1A);
+    return waitResponse(60000L) == 1;
   }
 
+  bool sendSMS_UTF16(const String& number, const void* text, size_t len) {
+    sendAT(GF("+CMGF=1"));
+    waitResponse();
+    sendAT(GF("+CSCS=\"HEX\""));
+    waitResponse();
+    sendAT(GF("+CSMP=17,167,0,8"));
+    waitResponse();
+
+    sendAT(GF("+CMGS=\""), number, GF("\""));
+    if (waitResponse(GF(">")) != 1) {
+      return false;
+    }
+
+    uint16_t* t = (uint16_t*)text;
+    for (size_t i=0; i<len; i++) {
+      uint8_t c = t[i] >> 8;
+      if (c < 0x10) { stream.print('0'); }
+      stream.print(c, HEX);
+      c = t[i] & 0xFF;
+      if (c < 0x10) { stream.print('0'); }
+      stream.print(c, HEX);
+    }
+    stream.write((char)0x1A);
+    return waitResponse(60000L) == 1;
+  }
+
+
   /*
    * Location functions
    */
-  void getLocation() {
+
+  String getGsmLocation() {
+    sendAT(GF("+CIPGSMLOC=1,1"));
+    if (waitResponse(GF(GSM_NL "+CIPGSMLOC:")) != 1) {
+      return "";
+    }
+    String res = stream.readStringUntil('\n');
+    waitResponse();
+    res.trim();
+    return res;
   }
 
   /*
@@ -578,6 +578,7 @@ private:
       return -1;
     }
     stream.write((uint8_t*)buff, len);
+    stream.flush();
     if (waitResponse(GF(GSM_NL "DATA ACCEPT:")) != 1) {
       return -1;
     }