1 files changed, 34 insertions, 0 deletions
diff --git a/src/MTS_IO_QuectelRadio.cpp b/src/MTS_IO_QuectelRadio.cpp
index 8cd7194..a8986f4 100644
--- a/src/MTS_IO_QuectelRadio.cpp
+++ b/src/MTS_IO_QuectelRadio.cpp
@@ -20,6 +20,8 @@
 
 #include "mts/MTS_IO_QuectelRadio.h"
 
+#include <climits>
+
 #include <mts/MTS_Logger.h>
 #include <mts/MTS_Thread.h>
 #include <mts/MTS_Text.h>
@@ -618,6 +620,38 @@ ICellularRadio::CODE QuectelRadio::convertToActiveBand(const std::string& sQuect
     return SUCCESS;
 }
 
+ICellularRadio::CODE QuectelRadio::setCellularMode(CELLULAR_MODES networks) {
+    std::string prefNet;
+    unsigned int prefOnly = 0, prefCount = 0;
+    for (int i = sizeof(networks)*CHAR_BIT-1; i>=0; --i){
+        switch (1<<i & networks) {
+            case ICellularRadio::CELLULAR_MODE_2G: prefNet += "01"  ; prefOnly = 1; prefCount++; break;
+            case ICellularRadio::CELLULAR_MODE_3G: prefNet += "0302"; prefOnly = 2; prefCount++; break;
+            case ICellularRadio::CELLULAR_MODE_4G: prefNet += "04"  ; prefOnly = 3; prefCount++; break;
+        }
+    }
+
+    std::string sCmd;
+    if (prefCount == 1) { // *g-only
+        sCmd = "AT+QCFG=\"nwscanmode\"," + std::to_string(prefOnly);
+    } else { // preferred
+        sCmd = "AT+QCFG=\"nwscanmode\",0";
+    }
+    std::string cmdResult = sendCommand(sCmd);
+    if (cmdResult.find(ICellularRadio::RSP_OK) == std::string::npos) {
+        printError("%s| AT+QCFG=\"nwscanmode\" returned unexpected response: [%s][%s]", getName().c_str(), sCmd.c_str(), cmdResult.c_str());
+        return FAILURE;
+    }
+
+    sCmd = "AT+QCFG=\"nwscanseq\"," + prefNet;
+    cmdResult = sendCommand(sCmd);
+    if (cmdResult.find(ICellularRadio::RSP_OK) == std::string::npos) {
+        printError("%s| AT+QCFG=\"nwscanseq\" returned unexpected response: [%s][%s]", getName().c_str(), sCmd.c_str(), cmdResult.c_str());
+        return FAILURE;
+    }
+    return SUCCESS;
+}
+
 ICellularRadio::CODE QuectelRadio::uploadFile(int fd, const std::string& sTargetFilename, ICellularRadio::UpdateCb& stepCb) {
     size_t dPayloadLenght;
     size_t nChunks;