1 files changed, 55 insertions, 0 deletions
diff --git a/timer.h b/timer.h
new file mode 100644
index 0000000..6f4ec9f
--- /dev/null
+++ b/timer.h
@@ -0,0 +1,55 @@
+/*
+    Nios-sim - one simple NIOSII simulator only for personal interest and fun.
+    Copyright (C) 2010  chysun2000@gmail.com
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that 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.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef __TIMER_H__
+#define __TIMER_H__
+
+#include <stdio.h>
+#include "public.h"
+#include "niosii.h"
+#include "io_device.h"
+
+#define TIMER_REG_CNT (6)
+#define TIMER_BASE_ADDR (0x80681020)
+
+#define CTRL_ITO_MASK (0x01)
+#define CTRL_CONT_MASK (0x02)
+#define CTRL_START_MASK (0x04)
+#define CTRL_STOP_MASK (0x08)
+
+#define STATUS_TO_MASK (0x01)
+#define TIM_IRQ_MASK (1 << 3)
+struct timer_hw{
+	struct io_reg io_regs[TIMER_REG_CNT];
+	uint32_t set_period;
+	uint32_t curr_count;
+	
+};
+
+/* the index */
+#define TIM_REG_STATUS (0)
+#define TIM_REG_CTRL (1)
+#define TIM_REG_PERIODL (2)
+#define TIM_REG_PERIODH (3)
+#define TIM_REG_SNAPL (4)
+#define TIM_REG_SNAPH (5)
+	
+extern struct io_device timer_core;
+#endif
+