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/************************************************************************************
* dm320.h
*
* Copyright (C) 2007 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 Gregory Nutt 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 __DM320_H
#define __DM320_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#ifndef __ASSEMBLY__
# include <sys/types.h>
#endif
#include "arm9.h"
#if defined(CONFIG_BOARD_NTOSD_DM320)
# include <arch/board/ntosd.h>
#else
# warning "Unknown DM320 board"
#endif
#include "dm320-memorymap.h"
#include "dm320-uart.h"
#include "dm320-timer.h"
#include "dm320-intc.h"
#include "dm320-gio.h"
/************************************************************************************
* Definitions
************************************************************************************/
/************************************************************************************
* Inline Functions
************************************************************************************/
#ifndef __ASSEMBLY__
# define getreg8(a) (*(volatile ubyte *)(a))
# define putreg8(v,a) (*(volatile ubyte *)(a) = (v))
# define getreg32(a) (*(volatile uint32 *)(a))
# define putreg32(v,a) (*(volatile uint32 *)(a) = (v))
/* Some compiler options will convert short loads and stores into byte loads
* and stores. We don't want this to happen for IO reads and writes!
*/
/* # define getreg16(a) (*(volatile uint16 *)(a)) */
static inline uint16 getreg16(unsigned int addr)
{
uint16 retval;
__asm__ __volatile__("\tldrh %0, [%1]\n\t" : "=r"(retval) : "r"(addr));
return retval;
}
/* define putreg16(v,a) (*(volatile uint16 *)(a) = (v)) */
static inline void putreg16(uint16 val, unsigned int addr)
{
__asm__ __volatile__("\tstrh %0, [%1]\n\t": : "r"(val), "r"(addr));
}
/* Most DM320 registers are 16-bits wide */
#define getreg(a) getreg16(1)
#define putreg(v,a) putreg16(v,a)
#endif
#endif /* __DM320_H */
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