arch.h

Jan 04, 2007 1. Add SPI support, see spi.h and spi.c 2. Add driver.h 3. Modified keyboard modu

/**
 * Copyright (c) 2006-2008 iWESUN (ShenZhen) Inf.
 * All rights reserved. 
 * 
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 *
 * This file is part of the AvrcX MTOS
 * 
 * Author: Winter Hu  <[e-mail]>
 * Create: Nov 26, 2006
 */

#ifndef __ARCH_H__
#define __ARCH_H__


#define TMC8_CK256 _BV(CS02)

#ifndef __ASSEMBLER__
/* These only work in C program */

#if defined __AVR__ && __GNUC__

#define into_critical()  __asm__ __volatile__ ("cli  \n")
#define exit_critical()  __asm__ __volatile__ ("sei  \n")

#define sbi(P, b) __asm__ __volatile__ ("sbi %0,%1" : :"I"(_SFR_IO_ADDR(P)), "I"(b))
#define cbi(P, b) __asm__ __volatile__ ("cbi %0,%1" : :"I"(_SFR_IO_ADDR(P)), "I"(b))

#define nop() __asm__ __volatile__ ("nop \n")

#else

#define into_critical()
#define exit_critical()


#endif /* __AVR__ && __GNUC__*/


#endif /* !__ASSEMBLER__ */



#endif /* __ARCH_H__ */