Fix bugs

KeyboardAddin/log.cpp

@@ -16,7 +16,11 @@ extern "C"
 #include "log.h"
 
 
-Log::Log() : cursor_x(1), cursor_y(1)
+int Log::cursor_x = 1;
+int Log::cursor_y = 1;
+
+
+Log::Log()
 {
 
 }

KeyboardAddin/log.h

@@ -19,23 +19,23 @@ class Log
 public:
     Log();
 
-    void Init(void); // Must call this function in main function once!
+    static void Init(void); // Must call this function in main function once!
 
-    void Print(void); // Print space.
-    void Print(unsigned char uch); // Print uch.
-    void Print(const unsigned char* ustr); // Print ustr.
-    void Print(int num); // Print int.
+    static void Print(void); // Print space.
+    static void Print(unsigned char uch); // Print uch.
+    static void Print(const unsigned char* ustr); // Print ustr.
+    static void Print(int num); // Print int.
 
-    void PrintLn(void); // Print a blank line.
-    void PrintLn(unsigned char uch); // Print uch with a new line.
-    void PrintLn(const unsigned char* ustr); // Print ustr with a new line.
-    void PrintLn(int num); // Print int with a new line.
+    static void PrintLn(void); // Print a blank line.
+    static void PrintLn(unsigned char uch); // Print uch with a new line.
+    static void PrintLn(const unsigned char* ustr); // Print ustr with a new line.
+    static void PrintLn(int num); // Print int with a new line.
 
-    void Clear(void); // Clear the screen and reset line position.
+    static void Clear(void); // Clear the screen and reset line position.
 
 private:
-    int cursor_x;
-    int cursor_y;
+    static int cursor_x;
+    static int cursor_y;
 };
 
 

KeyboardAddin/sendkey.h

@@ -19,10 +19,7 @@ class SendKey
 public:
     SendKey();
 
-    void Send(void); // Send pressed key by usb port.
-
-private:
-
+    static void Send(void); // Send pressed key by usb port.
 };
 
 

KeyboardAddin/usb.cpp

@@ -10,6 +10,9 @@ extern "C"
 #endif
 
 
+#include <fxlib.h>
+#include <timer.h>
+
 #include "tool.h"
 #include "syscall.h"
 #include "usb.h"
@@ -32,8 +35,18 @@ USB::USB()
 // -1 : port already open
 int USB::Init(void)
 {
+    // If the cable not connected, the program would stuck in Comm_Open.
+    // This timer is used to force exit.
+    SetTimer(ID_USER_TIMER1, 2000, ForceExit);
+
+    #ifdef DEBUG_USB
+    log.PrintLn((const unsigned char*)"#Linking...");
+    #endif
+
     if (Comm_Open(0x20) == 0)
     {
+        KillTimer(ID_USER_TIMER1);
+
         #ifdef DEBUG_USB
         log.PrintLn((const unsigned char*)"#Port open!");
         #endif
@@ -44,6 +57,8 @@ int USB::Init(void)
     }
     else 
     {
+        KillTimer(ID_USER_TIMER1);
+
         #ifdef DEBUG_USB
         log.PrintLn((const unsigned char*)"#Port already open!");
         #endif
@@ -115,6 +130,20 @@ void USB::Close(void)
 }
 
 
+// Force exit.
+// Called by timer.
+void USB::ForceExit(void)
+{
+    log.PrintLn((const unsigned char*)"#Link error!");
+    log.PrintLn((const unsigned char*)"#Use [MENU] to exit.");
+
+    unsigned int key;
+
+    while (1)
+        GetKey(&key);
+}
+
+
 #ifdef __cplusplus
 }
 #endif

KeyboardAddin/usb.h

@@ -23,16 +23,16 @@ class USB
 public:
     USB();
 
-    int Init(void); // Try to open the usb port.
+    static int Init(void); // Try to open the usb port.
 
-    int Send(unsigned char* ustr); // Send ustr to usb port.
+    static int Send(unsigned char* ustr); // Send ustr to usb port.
 
-    void ClearSendBuffer(void); // Clear send buffer.
+    static void ClearSendBuffer(void); // Clear send buffer.
 
-    void Close(void); // Close the usb port.
+    static void Close(void); // Close the usb port.
 
 private:
-
+    static void ForceExit(void); // Force exit.
 };