patch-2.4.10 linux/arch/mips/philips/nino/kgdb.c

• Lines: 84
• Date: Sun Sep 9 10:43:02 2001
• Orig file: v2.4.9/linux/arch/mips/philips/nino/kgdb.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.9/linux/arch/mips/philips/nino/kgdb.c linux/arch/mips/philips/nino/kgdb.c
@@ -0,0 +1,83 @@
+/*
+ *  linux/arch/mips/philips/nino/kgdb.c
+ *
+ *  Copyright (C) 2001 Steven J. Hill (sjhill@realitydiluted.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Kernel debugging on the Philips Nino.
+ */
+#include <asm/system.h>
+#include <asm/tx3912.h>
+
+static int remoteDebugInitialized = 0;
+
+void debugInit(void)
+{
+/*
+ * If low-level debugging (before GDB or console operational) is
+ * configured, then we do not need to re-initialize the UART.
+ */
+#ifndef CONFIG_DEBUG_LL
+	earlyInitUartPR31700();
+#endif
+}
+
+char getDebugChar(void)
+{
+	char buf;
+	unsigned long int2, flags;
+
+	if (!remoteDebugInitialized) {
+		debugInit();
+		remoteDebugInitialized = 1;
+	}
+
+	save_and_cli(flags);
+
+	int2 = IntEnable2;
+
+	IntEnable2 = 0;
+
+	while(!(UartA_Ctrl1 & UART_RX_HOLD_FULL));
+
+	buf = UartA_Data;
+
+	IntEnable2 = int2;
+
+	restore_flags(flags);
+
+	return buf;	
+}
+
+int putDebugChar(char c)
+{
+	int i;
+	unsigned long int2;
+
+	if (!remoteDebugInitialized) {
+		debugInit();
+		remoteDebugInitialized = 1;
+	}
+
+	int2 = IntEnable2;
+
+	IntEnable2 &=
+		~(INT2_UARTATXINT | INT2_UARTATXOVERRUN | INT2_UARTAEMPTY);
+
+	for (i = 0; !(IntStatus2 & INT2_UARTATXINT) && (i < 10000); i++);
+
+	IntClear2 = INT2_UARTATXINT | INT2_UARTATXOVERRUN | INT2_UARTAEMPTY;
+
+	UartA_Data = c;
+
+	for (i = 0; !(IntStatus2 & INT2_UARTATXINT) && (i < 10000); i++);
+
+	IntClear2 = INT2_UARTATXINT | INT2_UARTATXOVERRUN | INT2_UARTAEMPTY;
+
+	IntEnable2 = int2;
+
+	return 1;
+}