avr32.h File Reference

Compiler file for AVR32. More...

#include <cfg/arch.h>

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Defines
#define	__BIG_ENDIAN__
#define	CONST   const
#define	INLINE   inline
#define	PSTR(p)   (p)
#define	PRG_RDB(p)   (*((const char *)(p)))
#define	prog_char   const char
#define	PGM_P   prog_char *
#define	SIGNAL(x)   __attribute__((__interrupt__)) void x(void)
#define	RAMFUNC   __attribute__ ((long_call, section (".ramfunc")))
#define	main   NutAppMain
#define	strlen_P(x)   strlen((char *)(x))
#define	strcpy_P(x, y)   strcpy(x,(char *)(y))
#define	strcmp_P(x, y)   strcmp((char *)(x), (char *)(y))
#define	memcpy_P(x, y, z)   memcpy(x, y, z)
#define	_NOP()   __asm__ __volatile__ ("nop")
#define	outb(_reg, _val)   (*((volatile unsigned char *)(_reg)) = (_val))
#define	outw(_reg, _val)   (*((volatile unsigned short *)(_reg)) = (_val))
#define	outr(_reg, _val)   (*((volatile unsigned long *)(_reg)) = (_val))
#define	inb(_reg)   (*((volatile unsigned char *)(_reg)))
#define	inw(_reg)   (*((volatile unsigned short *)(_reg)))
#define	inr(_reg)   (*((volatile unsigned long *)(_reg)))
#define	_BV(bit)   (1 << (bit))
#define	_SFR_MEM8(addr)   (addr)
#define	_SFR_MEM16(addr)   (addr)
#define	Rd_bits(value, mask)   ((value) & (mask))
	Reads the bits of a value specified by a given bit-mask.
#define	Tst_bits(value, mask)   (Rd_bits(value, mask) != 0)
	Tests the bits of a value specified by a given bit-mask.
#define	Get_system_register(sysreg)   __builtin_mfsr(sysreg)
	Gets the value of the sysreg system register.
#define	Set_system_register(sysreg, value)   __builtin_mtsr(sysreg, value)
	Sets the value of the sysreg system register to value.
#define	Is_global_interrupt_enabled()   (!Tst_bits(Get_system_register(AVR32_SR), AVR32_SR_GM_MASK))
	Tells whether interrupts are globally enabled.
#define	Disable_global_interrupt()   ({__asm__ __volatile__ ("ssrf\t%0" : : "i" (AVR32_SR_GM_OFFSET));})
	Disables interrupts globally.
#define	Enable_global_interrupt()   ({__asm__ __volatile__ ("csrf\t%0" : : "i" (AVR32_SR_GM_OFFSET));})
	Enables interrupts globally.
Variables
void *	__bss_end
	End of uninitialized data segment. Defined in the linker script.

---

Detailed Description

Compiler file for AVR32.

Copyright (C) 2001-2010 by egnite Software GmbH

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. Neither the name of the copyright holders nor the names of 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.

For additional information see http://www.ethernut.de/

Portions Copyright Atmel Corporation, see the following note.

This file defines commonly used types and macros.

• Compiler: IAR EWAVR32 and GNU GCC for AVR32
• Supported devices: All AVR32 devices can be used.
• AppNote:

Author:

Atmel Corporation: http://www.atmel.com
Support and FAQ: http://support.atmel.no/

---

Define Documentation

#define __BIG_ENDIAN__

#define CONST   const

#define INLINE   inline

#define PSTR

(

p

)

(p)

#define PRG_RDB

(

p

)

(*((const char *)(p)))

#define prog_char   const char

#define PGM_P   prog_char *

#define SIGNAL

(

x

)

__attribute__((__interrupt__)) void x(void)

#define RAMFUNC   __attribute__ ((long_call, section (".ramfunc")))

#define main   NutAppMain

#define strlen_P

(

x

)

strlen((char *)(x))

#define strcpy_P	(		x,
			y
	)		strcpy(x,(char *)(y))

#define strcmp_P	(		x,
			y
	)		strcmp((char *)(x), (char *)(y))

#define memcpy_P	(		x,
			y,
			z
	)		memcpy(x, y, z)

#define _NOP

(

)

__asm__ __volatile__ ("nop")

#define outb	(		_reg,
			_val
	)		(*((volatile unsigned char *)(_reg)) = (_val))

#define outw	(		_reg,
			_val
	)		(*((volatile unsigned short *)(_reg)) = (_val))

#define outr	(		_reg,
			_val
	)		(*((volatile unsigned long *)(_reg)) = (_val))

#define inb

(

_reg

)

(*((volatile unsigned char *)(_reg)))

#define inw

(

_reg

)

(*((volatile unsigned short *)(_reg)))

#define inr

(

_reg

)

(*((volatile unsigned long *)(_reg)))

#define _BV

(

bit

)

(1 << (bit))

#define _SFR_MEM8

(

addr

)

(addr)

#define _SFR_MEM16

(

addr

)

(addr)

#define Rd_bits	(		value,
			mask
	)		((value) & (mask))

Reads the bits of a value specified by a given bit-mask.

Parameters:

value	Value to read bits from.
mask	Bit-mask indicating bits to read.

Returns:

Read bits.

#define Tst_bits	(		value,
			mask
	)		(Rd_bits(value, mask) != 0)

Tests the bits of a value specified by a given bit-mask.

Parameters:

value	Value of which to test bits.
mask	Bit-mask indicating bits to test.

Returns:

1 if at least one of the tested bits is set, else 0.

#define Get_system_register

(

sysreg

)

__builtin_mfsr(sysreg)

Gets the value of the sysreg system register.

Parameters:

sysreg

Address of the system register of which to get the value.

Returns:

Value of the sysreg system register.

Referenced by NutRegisterTimer().

#define Set_system_register	(		sysreg,
			value
	)		__builtin_mtsr(sysreg, value)

Sets the value of the sysreg system register to value.

Parameters:

sysreg	Address of the system register of which to set the value.
value	Value to set the sysreg system register to.

Referenced by NutRegisterTimer().

#define Is_global_interrupt_enabled

(

)

(!Tst_bits(Get_system_register(AVR32_SR), AVR32_SR_GM_MASK))

Tells whether interrupts are globally enabled.

Returns:

1 if interrupts are globally enabled, else 0.

#define Disable_global_interrupt

(

)

({__asm__ __volatile__ ("ssrf\t%0" : : "i" (AVR32_SR_GM_OFFSET));})

Disables interrupts globally.

#define Enable_global_interrupt

(

)

({__asm__ __volatile__ ("csrf\t%0" : : "i" (AVR32_SR_GM_OFFSET));})

Enables interrupts globally.

---

Variable Documentation

void* __bss_end

End of uninitialized data segment. Defined in the linker script.