Merge devel code into the trunk.

[tinyos-2.x.git] / tos / chips / atm128 / atm128hardware.h

diff --git a/tos/chips/atm128/atm128hardware.h b/tos/chips/atm128/atm128hardware.h
new file mode 100644 (file)
index 0000000..7ef731c
--- /dev/null
+++ b/tos/chips/atm128/atm128hardware.h
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+//  $Id$
+
+/*                                                                     tab:4
+ *  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.  By
+ *  downloading, copying, installing or using the software you agree to
+ *  this license.  If you do not agree to this license, do not download,
+ *  install, copy or use the software.
+ *
+ *  Copyright (c) 2004-2005 Crossbow Technology, Inc.
+ *  Copyright (c) 2002-2003 Intel Corporation.
+ *  Copyright (c) 2000-2003 The Regents of the University  of California.    
+ *  All rights reserved.
+ *
+ *  Permission to use, copy, modify, and distribute this software and its
+ *  documentation for any purpose, without fee, and without written
+ *  agreement is hereby granted, provided that the above copyright
+ *  notice, the (updated) modification history and the author appear in
+ *  all copies of this source code.
+ *
+ *  Permission is also granted to distribute this software under the
+ *  standard BSD license as contained in the TinyOS distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ *  PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE INTEL OR ITS
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ *  @author Jason Hill, Philip Levis, Nelson Lee, David Gay
+ *  @author Martin Turon <mturon@xbow.com>
+ */
+
+#ifndef _H_atmega128hardware_H
+#define _H_atmega128hardware_H
+
+#include <avr/io.h>
+#include <avr/signal.h>
+#include <avr/interrupt.h>
+#include <avr/wdt.h>
+#include <avr/pgmspace.h>
+#include "atm128const.h"
+
+/* We need slightly different defs than SIGNAL, INTERRUPT */
+#define AVR_ATOMIC_HANDLER(signame) \
+  void signame() __attribute__ ((signal)) @atomic_hwevent() @C()
+
+#define AVR_NONATOMIC_HANDLER(signame) \
+  void signame() __attribute__ ((interrupt)) @hwevent() @C()
+
+/* Macro to create union casting functions. */
+#define DEFINE_UNION_CAST(func_name, from_type, to_type) \
+  to_type func_name(from_type x) { \
+  union {from_type f; to_type t;} c = {f:x}; return c.t; }
+
+// Bit operators using bit number
+#define SET_BIT(port, bit)    ((port) |= _BV(bit))
+#define CLR_BIT(port, bit)    ((port) &= ~_BV(bit))
+#define READ_BIT(port, bit)   (((port) & _BV(bit)) != 0)
+#define FLIP_BIT(port, bit)   ((port) ^= _BV(bit))
+#define WRITE_BIT(port, bit, value) \
+   if (value) SET_BIT((port), (bit)); \
+   else CLR_BIT((port), (bit))
+
+// Bit operators using bit flag mask
+#define SET_FLAG(port, flag)  ((port) |= (flag))
+#define CLR_FLAG(port, flag)  ((port) &= ~(flag))
+#define READ_FLAG(port, flag) ((port) & (flag))
+
+/* Enables interrupts. */
+inline void __nesc_enable_interrupt() {
+    sei();
+}
+/* Disables all interrupts. */
+inline void __nesc_disable_interrupt() {
+    cli();
+}
+
+/* Defines data type for storing interrupt mask state during atomic. */
+typedef uint8_t __nesc_atomic_t;
+__nesc_atomic_t __nesc_atomic_start(void);
+void __nesc_atomic_end(__nesc_atomic_t original_SREG);
+
+#ifndef NESC_BUILD_BINARY
+/* @spontaneous() functions should not be included when NESC_BUILD_BINARY
+   is #defined, to avoid duplicate functions definitions wheb binary
+   components are used. Such functions do need a prototype in all cases,
+   though. */
+
+/* Saves current interrupt mask state and disables interrupts. */
+inline __nesc_atomic_t 
+__nesc_atomic_start(void) @spontaneous()
+{
+    __nesc_atomic_t result = SREG;
+    __nesc_disable_interrupt();
+    return result;
+}
+
+/* Restores interrupt mask to original state. */
+inline void 
+__nesc_atomic_end(__nesc_atomic_t original_SREG) @spontaneous()
+{
+  SREG = original_SREG;
+}
+#endif
+
+/* Defines the mcu_power_t type for atm128 power management. */
+typedef uint8_t mcu_power_t @combine("mcombine");
+
+
+enum {
+  ATM128_POWER_IDLE        = 0,
+  ATM128_POWER_ADC_NR      = 1,
+  ATM128_POWER_EXT_STANDBY = 2,
+  ATM128_POWER_SAVE        = 3,
+  ATM128_POWER_STANDBY     = 4,
+  ATM128_POWER_DOWN        = 5, 
+};
+
+/* Combine function.  */
+mcu_power_t mcombine(mcu_power_t m1, mcu_power_t m2) {
+  return (m1 < m2)? m1: m2;
+}
+
+#endif //_H_atmega128hardware_H