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Add WDT header file

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2993 42af7a65-404d-4744-a932-0658087f49c3
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patacongo 2010-10-11 02:56:03 +00:00
parent a155e6c776
commit 48006e3cf4
1 changed files with 87 additions and 0 deletions
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arch/avr/src/at91uc3/at91uc3_wdt.h Executable file
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/************************************************************************************
* arch/avr/src/at91uc3/at91uc3_wdt.h
*
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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
* COPYRIGHT OWNER OR 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.
*
************************************************************************************/
#ifndef __ARCH_AVR_SRC_AT91UC3_AT91UC3_WDT_H
#define __ARCH_AVR_SRC_AT91UC3_AT91UC3_WDT_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Register offsets *****************************************************************/
#define AVR32_WDT_CTRL_OFFSET 0x00 /* Control Register */
#define AVR32_WDT_CLR_OFFSET 0x04 /* Clear Register */
/* Register Addresses ***************************************************************/
#define AVR32_WDT_CTRL (AVR32_WDT_BASE+AVR32_WDT_CTRL_OFFSET)
#define AVR32_WDT_CLR (AVR32_WDT_BASE+AVR32_WDT_CLR_OFFSET)
/* Register Bit-field Definitions ***************************************************/
/* Control Register Bit-field Definitions */
#define WDT_CTRL_EN (1 << 0) /* Bit 0: WDT Enable */
#define WDT_CTRL_PSEL_SHIFT (18) /* Bit 8-12: Prescale Select */
#define WDT_CTRL_PSEL_MASK (0x1f << WDT_CTRL_PSEL_SHIFT)
#define WDT_CTRL_KEY_SHIFT (24) /* Bits 24-31: Write protection key */
#define WDT_CTRL_KEY_MASK (0xff << WDT_CTRL_KEY_SHIFT)
/* Clear Register Bit-field Definitions. These register has no bit field: "Writing
* periodically any value to this field when the WDT is enabled, within the watchdog
* time-out period, will prevent a watchdog reset."
*/
/************************************************************************************
* Public Types
************************************************************************************/
/************************************************************************************
* Public Data
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
#endif /* __ARCH_AVR_SRC_AT91UC3_AT91UC3_WDT_H */