Diff: PS2MS_INIT.h

Revision:

0:ce15490e89e9

diff -r 000000000000 -r ce15490e89e9 PS2MS_INIT.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PS2MS_INIT.h	Sun Feb 27 23:34:31 2011 +0000
@@ -0,0 +1,64 @@
+/**
+ * PS/2 mouse interface control class (Version 0.0.1)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ */
+#ifndef _PS2MS_INIT_H_
+#define _PS2MS_INIT_H_
+
+#include "mbed.h"
+
+/**
+ * PS2 mouse initializer.
+ */
+class PS2MS_INIT {
+public:
+
+    /**
+     * Create.
+     */
+    PS2MS_INIT(PinName clk_pin, PinName dat_pin);
+
+    /**
+     * Destroy.
+     */
+    ~PS2MS_INIT();
+private:
+    DigitalInOut clk;
+    DigitalInOut dat;
+
+    static const int MAX_RETRY = 1000000;
+
+    /**
+     * Send a byte data.
+     *
+     * @param c a character.
+     *
+     * @return Negative value is a error number.
+     */
+    int send(uint8_t c);
+
+    /**
+     * Receive a byte data.
+     *
+     * @return return a data. Negative value is a error number.
+     */
+    int recv(void);
+
+    /**
+     * Wait a clock down edge.
+     *
+     * @return true if wait done.
+     */
+    bool waitClockDownEdge(void);
+
+    /**
+     * Wait a clock up level.
+     *
+     * @return true if wait done.
+     */
+    bool waitClockUpLevel(void);
+};
+
+#endif