Diff: ReceiverIR.h

Revision:

0:ec264f4ce158

Child:

1:4adf16017a0f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ReceiverIR.h	Tue Aug 17 08:50:54 2010 +0000
@@ -0,0 +1,106 @@
+/**
+ * IR receiver (Version 0.0.3)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ */
+
+#ifndef _RECEIVER_IR_H_
+#define _RECEIVER_IR_H_
+
+#include <mbed.h>
+
+#include "Semaphore.h"
+#include "RemoteIR.h"
+
+/**
+ * IR receiver class.
+ */
+class ReceiverIR {
+public:
+
+    /**
+     * Constructor.
+     *
+     * @param rxpin Pin for receive IR signal.
+     */
+    explicit ReceiverIR(PinName rxpin);
+    
+    /**
+     * Destructor.
+     */
+    ~ReceiverIR();
+
+    /**
+     * State.
+     */
+    typedef enum {
+        Idle,
+        Receiving,
+        Received
+    } State;
+    
+    void init(void);
+
+    /**
+     * Get state.
+     *
+     * @return Current state.
+     */
+    State getState();
+    
+    /**
+     * Get data.
+     *
+     * @param format Pointer to format.
+     * @param buf Buffer of data.
+     * @param bufsiz Buffer byte size.
+     *
+     * @return Data bit length.
+     */
+    int getData(RemoteIR::Format *format, uint8_t *buf, int bufsiz);
+    
+private:
+    
+    typedef struct {
+        State state;
+        RemoteIR::Format format;
+        int bitcount;
+        uint8_t buffer[64];
+    } data_t;
+    
+    typedef struct {
+        int c1;
+        int c2;
+        int c3;
+        int d1;
+        int d2;
+    } work_t;
+
+    static const int TUS_NEC = 562;
+    static const int TUS_AEHA = 425;
+    static const int TUS_SONY = 600;
+
+    InterruptIn evt;    /**< Interrupt based input for input. */
+    Timer timer;        /**< Timer for WDT. */
+    Ticker ticker;      /**< Tciker for tick. */
+    Semaphore sem;      /**< Semaphore for data. */
+    Timeout timeout;    /**< Timeout for tail. */
+
+    data_t data;
+    work_t work;
+    
+    void init_state(void);
+
+    void isr_wdt(void);
+    void isr_fall(void);
+    void isr_rise(void);
+    
+    /**
+     * ISR timeout for tail detection.
+     */
+    void isr_timeout(void);
+
+};
+
+#endif