X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Fdebug.c;h=8404fc1d21a848a3cd2cd7bdde467805da57dd78;hb=25f19babe7a0ab75d04ff7e6f98f7bcb65fb8941;hp=b42459de3c20f84c3cdfcf9cbb20349e053e190c;hpb=a4ce2e60f783c9e71447edc03f20f937b8abf35a;p=tpg%2Facess2.git

diff --git a/Kernel/debug.c b/Kernel/debug.c
index b42459de..8404fc1d 100644
--- a/Kernel/debug.c
+++ b/Kernel/debug.c
@@ -8,6 +8,7 @@
 #define DEBUG_TO_E9	1
 #define DEBUG_TO_SERIAL	1
 #define	SERIAL_PORT	0x3F8
+#define	GDB_SERIAL_PORT	0x2F8
 
 // === IMPORTS ===
 extern void Threads_Dump();
@@ -16,8 +17,41 @@ extern void Threads_Dump();
  int	gDebug_Level = 0;
  int	giDebug_KTerm = -1;
  int	gbDebug_SerialSetup = 0;
+ int	gbGDB_SerialSetup = 0;
 
 // === CODE ===
+int putDebugChar(char ch)
+{
+	if(!gbGDB_SerialSetup) {
+		outb(GDB_SERIAL_PORT + 1, 0x00);    // Disable all interrupts
+		outb(GDB_SERIAL_PORT + 3, 0x80);    // Enable DLAB (set baud rate divisor)
+		outb(GDB_SERIAL_PORT + 0, 0x03);    // Set divisor to 3 (lo byte) 38400 baud
+		outb(GDB_SERIAL_PORT + 1, 0x00);    //                  (hi byte)
+		outb(GDB_SERIAL_PORT + 3, 0x03);    // 8 bits, no parity, one stop bit
+		outb(GDB_SERIAL_PORT + 2, 0xC7);    // Enable FIFO with 14-byte threshold and clear it
+		outb(GDB_SERIAL_PORT + 4, 0x0B);    // IRQs enabled, RTS/DSR set
+		gbDebug_SerialSetup = 1;
+	}
+	while( (inb(GDB_SERIAL_PORT + 5) & 0x20) == 0 );
+	outb(GDB_SERIAL_PORT, ch);
+	return 0;
+}
+int getDebugChar()
+{
+	if(!gbGDB_SerialSetup) {
+		outb(GDB_SERIAL_PORT + 1, 0x00);    // Disable all interrupts
+		outb(GDB_SERIAL_PORT + 3, 0x80);    // Enable DLAB (set baud rate divisor)
+		outb(GDB_SERIAL_PORT + 0, 0x03);    // Set divisor to 3 (lo byte) 38400 baud
+		outb(GDB_SERIAL_PORT + 1, 0x00);    //                  (hi byte)
+		outb(GDB_SERIAL_PORT + 3, 0x03);    // 8 bits, no parity, one stop bit
+		outb(GDB_SERIAL_PORT + 2, 0xC7);    // Enable FIFO with 14-byte threshold and clear it
+		outb(GDB_SERIAL_PORT + 4, 0x0B);    // IRQs enabled, RTS/DSR set
+		gbDebug_SerialSetup = 1;
+	}
+	while( (inb(GDB_SERIAL_PORT + 5) & 1) == 0)	;
+	return inb(GDB_SERIAL_PORT);
+}
+
 static void E9(char ch)
 {
 	if(giDebug_KTerm != -1)
@@ -56,7 +90,7 @@ void E9_Fmt(const char *format, va_list *args)
 	char	*p = NULL;
 	 int	isLongLong = 0;
 	Uint64	arg;
-  
+	
 	while((c = *format++) != 0)
 	{
 		// Non control character
@@ -152,7 +186,18 @@ void E9_Fmt(const char *format, va_list *args)
 			if(!p)		p = "(null)";
 			while(*p)	E9(*p++);
 			break;
-			
+		
+		// Single Character / Array
+		case 'c':
+			if(minSize == 1) {
+				E9(arg);
+				break;
+			}
+			p = (char*)(Uint)arg;
+			if(!p)	goto printString;
+			while(minSize--)	E9(*p++);
+			break;
+		
 		default:	E9(arg);	break;
 		}
     }
@@ -294,6 +339,10 @@ void Debug_Leave(char *FuncName, char RetType, ...)
 	
 	va_start(args, RetType);
 	
+	if( i == -1 ) {
+		gDebug_Level = 0;
+		i = 0;
+	}
 	// Indenting
 	while(i--)	E9(' ');