patch-2.4.19 linux-2.4.19/arch/mips/hp-lj/gdb_hook.c

• Lines: 101
• Date: Fri Aug 2 17:39:43 2002
• Orig file: linux-2.4.18/arch/mips/hp-lj/gdb_hook.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/arch/mips/hp-lj/gdb_hook.c linux-2.4.19/arch/mips/hp-lj/gdb_hook.c
@@ -0,0 +1,100 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+ *
+ * ########################################################################
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * ########################################################################
+ *
+ * This is the interface to the remote debugger stub.
+ *
+ */
+#include <linux/serialP.h>
+#include <linux/serial_reg.h>
+
+#include <asm/serial.h>
+#include <asm/io.h>
+#include <asm/hp-lj/asic.h>
+
+
+int putDebugChar(char c);
+char getDebugChar(void);
+
+
+///////////////////////  andros values ///////////////////////////////////////////////////////
+#define SERIAL_REG(offset) (*((volatile unsigned int*)(HPSR_BASE_ADDR|offset)))
+
+// Register set base address
+#define HPSR_BASE_ADDR   0xbfe00000UL
+
+// Transmit / Receive Data
+#define HPSR_DATA_OFFSET    0x00020010UL
+// Transmit control / status
+#define HPSR_TX_STAT_OFFSET 0x0002000CUL
+// Receive status
+#define HPSR_RX_STAT_OFFSET 0x00020008UL
+
+#define HPSR_TX_STAT_READY  0x8UL
+#define HPSR_RX_DATA_AVAIL  0x4UL
+
+
+///////////////////////  harmony values ///////////////////////////////////////////////////////
+// Transmit / Receive Data
+#define H_HPSR_DATA_TX       *((volatile unsigned int*)0xbff65014)
+// Transmit / Receive Data
+#define H_HPSR_DATA_RX       *((volatile unsigned int*)0xbff65018)
+// Status
+#define H_HPSR_STAT          *((volatile unsigned int*)0xbff65004)
+
+// harmony serial status bits
+#define H_SER_STAT_TX_EMPTY       0x04
+#define H_SER_STAT_RX_EMPTY       0x10
+
+
+
+
+int putDebugChar(char c)
+{
+	if (GetAsicId() == HarmonyAsic) {
+		while (!( ( (H_HPSR_STAT) & H_SER_STAT_TX_EMPTY) != 0));
+
+		H_HPSR_DATA_TX = (unsigned int) c;
+
+	} else if (GetAsicId() == AndrosAsic) {
+        	while (((SERIAL_REG(HPSR_TX_STAT_OFFSET) & HPSR_TX_STAT_READY) == 0))
+             		;
+        	SERIAL_REG(HPSR_DATA_OFFSET) = (unsigned int) c;
+        } 
+	return 1;
+}
+
+char getDebugChar(void)
+{
+	if (GetAsicId() == HarmonyAsic) {
+		while (!(((H_HPSR_STAT) & H_SER_STAT_RX_EMPTY) == 0));
+
+	        return H_HPSR_DATA_RX;
+        
+	} else if (GetAsicId() == AndrosAsic) {
+        	while ((SERIAL_REG(HPSR_RX_STAT_OFFSET) & HPSR_RX_DATA_AVAIL) == 0)
+              		;
+
+        	return (SERIAL_REG(HPSR_DATA_OFFSET));
+
+	}
+}
+
+