1 files changed, 67 insertions, 0 deletions
diff --git a/libraries/GSM/GSM3ShieldV1BandManagement.cpp b/libraries/GSM/GSM3ShieldV1BandManagement.cpp
new file mode 100644
index 0000000..94dec9a
--- /dev/null
+++ b/libraries/GSM/GSM3ShieldV1BandManagement.cpp
@@ -0,0 +1,67 @@
+#include <GSM3ShieldV1BandManagement.h>
+
+GSM3ShieldV1BandManagement::GSM3ShieldV1BandManagement(bool trace): modem(trace)
+{
+	quectelStrings[UNDEFINED]="";
+	quectelStrings[EGSM_MODE]="\"EGSM_MODE\"";
+	quectelStrings[DCS_MODE]="\"DCS_MODE\"";
+	quectelStrings[PCS_MODE]="\"PCS_MODE\"";
+	quectelStrings[EGSM_DCS_MODE]="\"EGSM_DCS_MODE\"";
+	quectelStrings[GSM850_PCS_MODE]="\"GSM850_PCS_MODE\"";
+	quectelStrings[GSM850_EGSM_DCS_PCS_MODE]="\"GSM850_EGSM_DCS_PCS_MODE\"";	
+}
+
+GSM3_NetworkStatus_t GSM3ShieldV1BandManagement::begin()
+{
+	// check modem response
+	modem.begin();
+
+	// reset hardware
+	modem.restartModem();
+
+	return IDLE;
+}
+
+String GSM3ShieldV1BandManagement::getBand()
+{
+  String modemResponse=modem.writeModemCommand("AT+QBAND?", 2000);
+	
+  for(GSM3GSMBand i=GSM850_EGSM_DCS_PCS_MODE;i>UNDEFINED;i=(GSM3GSMBand)((int)i-1))
+  {
+    if(modemResponse.indexOf(quectelStrings[i])>=0)
+      return quectelStrings[i];
+  }
+
+  Serial.print("Unrecognized modem answer:");
+  Serial.println(modemResponse);
+  
+  return "";
+}
+
+bool GSM3ShieldV1BandManagement::setBand(String band)
+{
+	String command;
+	String modemResponse;
+	bool found=false;
+
+	command="AT+QBAND=";
+	for(GSM3GSMBand i=EGSM_MODE;((i<=GSM850_EGSM_DCS_PCS_MODE)&&(!found));i=(GSM3GSMBand)((int)i+1))
+	{
+		String aux=quectelStrings[i];
+		if(aux.indexOf(band)>=0)
+		{
+		    command+=aux;
+			found=true;
+		}
+	}
+	
+	if(!found)
+		return false;
+	// Quad-band takes an awful lot of time
+    modemResponse=modem.writeModemCommand(command, 15000);
+	
+	if(modemResponse.indexOf("QBAND")>=0)
+      return true;
+	else
+		return false;
+}
+\ No newline at end of file