Diff: TransmitterChoroQ.cpp

Revision:

0:2a40e6db61c2

Child:

1:97921a2adf78

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TransmitterChoroQ.cpp	Sun Sep 19 23:30:35 2010 +0000
@@ -0,0 +1,159 @@
+/**
+ * CHORO Q HYBRID transmitter (Version 0.0.1)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ */
+
+#include "TransmitterChoroQ.h"
+
+#define LOCK()
+#define UNLOCK()
+
+    /**
+     * Constructor.
+     *
+     * @param txpin Pin for transmit IR signal.
+     */
+TransmitterChoroQ::TransmitterChoroQ(PinName txpin) : tx(txpin) {
+    tx.write(0.0);
+    tx.period_us(26.3);
+
+    work.state = Idle;
+    work.bitcount = 0;
+    work.leader = 0;
+    work.data = 0;
+    work.trailer = 0;
+
+    data.bitlength = 0;
+}
+
+    /**
+     * Destructor.
+     */
+TransmitterChoroQ::~TransmitterChoroQ() {
+}
+
+    /**
+     * Get state.
+     *
+     * @return Current state.
+     */
+TransmitterChoroQ::State TransmitterChoroQ::getState(void) {
+    LOCK();
+    State s = work.state;
+    UNLOCK();
+    return s;
+}
+
+    /**
+     * Set data.
+     *
+     * @param format Format.
+     * @param buf Buffer of a data.
+     * @param bitlength Bit length of the data.
+     *
+     * @return Data bit length.
+     */
+int TransmitterChoroQ::setData(uint8_t *buf, int bitlength) {
+    LOCK();
+    if (work.state != Idle) {
+        UNLOCK();
+        return -1;
+    }
+
+    work.state = Leader;
+    work.bitcount = 0;
+    work.leader = 0;
+    work.data = 0;
+    work.trailer = 0;
+
+    data.bitlength = bitlength;
+    const int n = bitlength / 8 + (((bitlength % 8) != 0) ? 1 : 0);
+    for (int i = 0; i < n; i++) {
+        data.buffer[i] = buf[i];
+    }
+
+    ticker.detach();
+    ticker.attach_us(this, &TransmitterChoroQ::tick, TUS_TAKARATOMY);
+
+    UNLOCK();
+    return bitlength;
+}
+
+void TransmitterChoroQ::tick(void) {
+    LOCK();
+    switch (work.state) {
+        case Idle:
+            work.bitcount = 0;
+            work.leader = 0;
+            work.data = 0;
+            work.trailer = 0;
+            break;
+        case Leader:
+            /*
+             * TAKARA TOMY.
+             */
+            static const int LEADER_SONY_HEAD = 4;
+            static const int LEADER_SONY_TAIL = 0;
+            if (work.leader < LEADER_SONY_HEAD) {
+                tx.write(0.5);
+            } else {
+                tx.write(0.0);
+            }
+            work.leader++;
+            if ((LEADER_SONY_HEAD + LEADER_SONY_TAIL) <= work.leader) {
+                work.state = Data;
+            }
+            break;
+        case Data:
+            /*
+             * TAKARA TOMY.
+             */
+            if (work.data == 0) {
+                tx.write(0.0);
+                work.data++;
+            } else {
+                tx.write(0.5);
+                if (0 != (data.buffer[work.bitcount / 8] & (1 << work.bitcount % 8))) {
+                    if (2 <= work.data) {
+                        work.bitcount++;
+                        work.data = 0;
+                    } else {
+                        work.data++;
+                    }
+                } else {
+                    if (1 <= work.data) {
+                        work.bitcount++;
+                        work.data = 0;
+                    } else {
+                        work.data++;
+                    }
+                }
+            }
+            if (data.bitlength <= work.bitcount) {
+                work.state = Trailer;
+            }
+            break;
+        case Trailer:
+            /*
+             * TAKARA TOMY.
+             */
+            static const int TRAILER_SONY_HEAD = 0;
+            static const int TRAILER_SONY_TAIL = 0;
+            if (work.trailer < TRAILER_SONY_HEAD) {
+                tx.write(0.5);
+            } else {
+                tx.write(0.0);
+            }
+            work.trailer++;
+            if ((TRAILER_SONY_HEAD + TRAILER_SONY_TAIL) <= work.trailer) {
+                work.state = Idle;
+                //ticker.detach();
+            }
+            break;
+        default:
+            break;
+    }
+    UNLOCK();
+}