common.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 25, 2006
 */

#ifndef __COMMON_H__
#define __COMMON_H__

#if defined __AVR__ && __GNUC__
#include <avr/io.h>
#include <avr/interrupt.h>
#endif /* __AVR__ && __GNUC__ */

#include "arch.h"

#ifndef NULL
#define NULL 0
#define null 0
#endif

#ifndef TRUE
#define TRUE  1
#define true  1
#endif

#ifndef FALSE
#define FALSE 0
#define false 0
#endif

#if !defined(_BV)
#define _BV(b) (1<<b)
#endif

#if !defined(LO8)
#define LO8(w) ((w) & 0x00FF)
#endif

#if !defined(HI8)
#define HI8(w) (((w)>>8) & 0x00FF)
#endif

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

#define FLASH  __attribute__ ((progmem))
#define EEPROM __attribute__ ((section(".eeprom")))
#define NAKED  __attribute__ ((naked))
#define CTASK  __attribute__ ((noreturn))
#define ISVR   __attribute__ ((signal, naked))
#define INTERFACE

#define NAKEDFUNC(F) NAKED void F(void);
#define CTASKFUNC(F) CTASK void F(void);

#define __clrbit(A, b) A &= ~_BV(b)
#define __setbit(A, b) A |=  _BV(b)
#define __abs(v) (((v) < 0) ? (-v) : (v))

typedef union union16 {
  unsigned short W;
  unsigned char  b[2];
} union16;

typedef union union32 {
  unsigned long  L;
  union16  w[2];
  unsigned char b[4];
} union32;

#define lo8 b[0]
#define hi8 b[1]

#define lo16 w[0]
#define hi16 w[1]

#define b0 b[0]
#define b1 b[1]
#define b2 b[2]
#define b3 b[3]

typedef unsigned char bool;

#endif /* !__ASSEMBLER__ */


// #if defined __GNUC__
/* These work in ASM program */
#define _GLOBAL(Label, Size) .comm Label, Size
#define _STATIC(Label, Size) .lcomm Label, Size
#define _DATASECTION
#define _CODESECTION
#define _FUNCTION(A) \
        .global A $  \
	.func   A
#define _ENDFUNC .endfunc
#define _PUBLIC(A) .global A
#define _EXTERN(A) .extern A
#define _MODULE(A) .section .text
#define _ENDMOD    .end
#define _DB .asciz
#define MACRO .macro
#define ENDM  .endm
#define _EQU(A, B) .set A, B
#define _ALIGN .balign 2

#define Xl      26
#define Xh      27
#define Yl      28
#define Yh      29
#define Zl      30
#define Zh      31

#define _p1l    24
#define _p1h    25
#define _p2l    22
#define _p2h    23
#define _p3l    20
#define _p3h    21
#define _p4l    18
#define _p4h    19

#define _r1l    24
#define _r1h    25
#define _r2l    22
#define _r2h    23

#define _tmp1   18
#define _tmp2   19
#define _tmp3   20
#define _tmp4   21

#define __temp_reg__ 0    // R0 is a temp register in GCC
#define __zero_reg__ 1    // R1 always is 0 in GCC



// #endif /* __GNUC__ */


#endif /* __COMMON_H__ */