Diff: IM920/IM920.cpp

Revision:

23:9be034083282

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IM920/IM920.cpp	Mon Aug 14 04:56:52 2017 +0000
@@ -0,0 +1,68 @@
+/* Copyright (C) 2014 Suga, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "IM920.h"
+
+IM920::IM920 (PinName tx, PinName rx, PinName busy, PinName reset, int baud) : _im(tx, rx) {
+
+    memset(&_state, 0, sizeof(_state));
+    _state.data = new CircBuffer<char>(CFG_DATA_SIZE);
+
+    initUart(busy, reset, baud);
+    setReset(true);
+    wait_ms(100);
+    setReset(false);
+}
+
+int IM920::init () {
+
+    cmdRDID();
+    cmdRDNN();
+    cmdSTPO(3);  // 10dBm
+    cmdSTRT(2);  // 1.25kbps
+    return 0;
+}
+
+void IM920::poll () {
+
+    if (_state.received && _state.buf != NULL)
+      if (!_state.data->isEmpty()) {
+        _func.call();
+        if (_state.data->isEmpty()) {
+            _state.received = false;
+        }
+    }
+}
+
+int IM920::send (char *buf, int len) {
+
+    if (len > 64) len = 64;
+
+    return sendData(buf, len);
+}
+
+int IM920::recv (char *buf, int len) {
+    int i;
+
+    if (_state.data == NULL) return 0;
+    while (!_state.received && _state.mode != MODE_COMMAND);
+    _state.received = false;
+    for (i = 0; i < len; i ++) {
+        if (_state.data->dequeue(&buf[i]) == false) break;
+    }
+    return i;
+}