Diff: PS2MS.h

Revision:

1:823c2798e398

Child:

2:a57bbbec16b1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PS2MS.h	Wed Sep 29 14:11:44 2010 +0000
@@ -0,0 +1,67 @@
+/**
+ * PS/2 mouse interface control class (Version 0.0.1)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ */
+
+#ifndef _PS2MS_H_
+#define _PS2MS_H_
+
+#include "mbed.h"
+
+/**
+ * PS/2 mouse interface control class.
+ */
+class PS2MS {
+public:
+    /**
+     * Create.
+     *
+     * @param clk_pin Clock pin.
+     * @param dat_pin Data pin.
+     */
+    PS2MS(PinName clk_pin, PinName dat_pin);
+
+    /**
+     * Destory.
+     */
+    virtual ~PS2MS();
+
+    /**
+     * Get a data from a PS/2 device.
+     *
+     * @return A data from a PS/2 device.
+     */
+    virtual int getc(void);
+
+    /**
+     * Set timeout.
+     *
+     * @param ms Timeout ms.
+     */
+    virtual void setTimeout(int ms);
+
+private:
+    static const int RINGBUFSIZ = 512;
+    InterruptIn clk;    /**< Interrupt input for CLK. */
+    DigitalIn dat;      /**< Digital input for DAT. */
+    Timeout wdt;    /**< Watch dog timer. */
+    Timer tot;      /**< Timeout timer. */
+    int timeout;    /**< Timeout[ms] for getc(). */
+
+    typedef struct {
+        int bitcnt;
+        int cStart;
+        int cEnd;
+        uint8_t buffer[RINGBUFSIZ];
+    } work_t;
+    work_t work;
+
+    void func_timeout(void);
+    void func_fall(void);
+
+    void init_work(void);
+};
+
+#endif