Diff: CommandTerminal/CmdLbt.cpp

Revision:

17:95c9eb69329a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CommandTerminal/CmdLbt.cpp	Mon Jun 19 15:54:03 2017 -0500
@@ -0,0 +1,54 @@
+#include "CmdLbt.h"
+
+CmdLbt::CmdLbt() :
+    Command("Listen Before Talk", "AT+LBT", "Enable/Disable listen before talk (0,0: disable, time,threshold: enable)", "time(0-65535 us),threshold(-127-128 dBm) (0,0: disable, time,threshold: enable)")
+{
+    _queryable = true;
+}
+
+uint32_t CmdLbt::action(std::vector<std::string> args)
+{
+    if (args.size() == 1)
+    {
+        CommandTerminal::Serial()->writef("%u,%d\r\n", CommandTerminal::Dot()->getLbtTimeUs(), CommandTerminal::Dot()->getLbtThreshold());
+    }
+    else
+    {
+        uint32_t us;
+        int32_t rssi;
+
+        sscanf(args[1].c_str(), "%lu", &us);
+        sscanf(args[2].c_str(), "%ld", &rssi);
+
+        CommandTerminal::Dot()->setLbtTimeUs((uint16_t)us);
+        CommandTerminal::Dot()->setLbtThreshold((int8_t)rssi);
+    }
+
+    return 0;
+}
+
+bool CmdLbt::verify(std::vector<std::string> args)
+{
+    if (args.size() == 1)
+        return true;
+
+    if (args.size() == 3) {
+        uint32_t us;
+        int32_t rssi;
+
+        if (args[1].find("-") != std::string::npos || sscanf(args[1].c_str(), "%lu", &us) != 1 || us > 65535) {
+            CommandTerminal::setErrorMessage("Invalid LBT time, expects 0-65535 us");
+            return false;
+        }
+
+        if (sscanf(args[2].c_str(), "%ld", &rssi) != 1 || rssi < -127 || rssi > 128) {
+            CommandTerminal::setErrorMessage("Invalid LBT threshold, expects -127-128 dBm");
+            return false;
+        }
+
+        return true;
+    }
+
+    CommandTerminal::setErrorMessage("Invalid arguments");
+    return false;
+}