256 lines
6.7 KiB
C
256 lines
6.7 KiB
C
/**
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* \file
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* <!--
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* This file is part of BeRTOS.
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*
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* Bertos is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* As a special exception, you may use this file as part of a free software
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* library without restriction. Specifically, if other files instantiate
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* templates or use macros or inline functions from this file, or you compile
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* this file and link it with other files to produce an executable, this
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* file does not by itself cause the resulting executable to be covered by
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* the GNU General Public License. This exception does not however
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* invalidate any other reasons why the executable file might be covered by
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* the GNU General Public License.
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*
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* Copyright 2004, 2005, 2006, 2007 Develer S.r.l. (http://www.develer.com/)
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* Copyright 2004 Giovanni Bajo
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*
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* -->
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*
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* \brief CPU-specific type definitions.
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*
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* \author Giovanni Bajo <rasky@develer.com>
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* \author Bernie Innocenti <bernie@codewiz.org>
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* \author Stefano Fedrigo <aleph@develer.com>
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* \author Francesco Sacchi <batt@develer.com>
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*/
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#ifndef CPU_TYPES_H
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#define CPU_TYPES_H
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#include "detect.h"
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#include "attr.h"
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#include <limits.h>
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#include <cfg/compiler.h> /* for uintXX_t */
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#if CPU_I196
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typedef uint16_t cpu_flags_t; // FIXME
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typedef unsigned int cpu_stack_t;
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typedef cpu_stack_t cpu_aligned_stack_t;
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typedef unsigned int cpu_atomic_t;
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#warning Verify following constant
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#define SIZEOF_CPUSTACK_T 2
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#define SIZEOF_CPUALIGNED_T SIZEOF_CPUSTACK_T
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#elif CPU_X86
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/* Get cpu_flags_t definition from the hosting environment. */
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#include <cfg/os.h>
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#if OS_EMBEDDED
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typedef uint32_t cpu_flags_t; // FIXME
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#endif /* OS_EMBEDDED */
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typedef uint32_t cpu_atomic_t;
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#if CPU_X86_64
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typedef uint64_t cpu_stack_t;
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typedef cpu_stack_t cpu_aligned_stack_t;
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#define SIZEOF_CPUSTACK_T 8
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#define SIZEOF_CPUALIGNED_T SIZEOF_CPUSTACK_T
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#else
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typedef uint32_t cpu_stack_t;
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typedef cpu_stack_t cpu_aligned_stack_t;
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#define SIZEOF_CPUSTACK_T 4
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#define SIZEOF_CPUALIGNED_T SIZEOF_CPUSTACK_T
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#endif
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#elif CPU_ARM || CPU_CM3
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typedef uint32_t cpu_flags_t;
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typedef uint32_t cpu_atomic_t;
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typedef uint32_t cpu_stack_t;
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#define SIZEOF_CPUSTACK_T 4
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typedef uint64_t cpu_aligned_stack_t;
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#define SIZEOF_CPUALIGNED_T 8
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#elif CPU_PPC
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/* Get cpu_flags_t definition from the hosting environment. */
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#include <cfg/os.h>
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#if OS_EMBEDDED
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typedef uint32_t cpu_flags_t;
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#endif
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typedef uint32_t cpu_atomic_t;
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typedef uint32_t cpu_stack_t;
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typedef cpu_stack_t cpu_aligned_stack_t;
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#define SIZEOF_CPUSTACK_T 4
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#define SIZEOF_CPUALIGNED_T SIZEOF_CPUSTACK_T
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#elif CPU_DSP56K
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typedef uint16_t cpu_flags_t;
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typedef uint16_t cpu_atomic_t;
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typedef unsigned int cpu_stack_t;
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typedef cpu_stack_t cpu_aligned_stack_t;
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#warning Verify following costant
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#define SIZEOF_CPUSTACK_T 2
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#define SIZEOF_CPUALIGNED_T SIZEOF_CPUSTACK_T
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#elif CPU_AVR
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typedef uint8_t cpu_flags_t;
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typedef uint8_t cpu_atomic_t;
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typedef uint8_t cpu_stack_t;
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typedef cpu_stack_t cpu_aligned_stack_t;
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#define SIZEOF_CPUSTACK_T 1
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#define SIZEOF_CPUALIGNED_T SIZEOF_CPUSTACK_T
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#elif CPU_MSP430
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typedef uint16_t cpu_flags_t;
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typedef uint16_t cpu_stack_t;
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typedef cpu_stack_t cpu_aligned_stack_t;
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#define SIZEOF_CPUSTACK_T 2
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#define SIZEOF_CPUALIGNED_T SIZEOF_CPUSTACK_T
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#else
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#error No CPU_... defined.
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#endif
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/**
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* \name Default type sizes.
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*
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* These defaults are reasonable for most 16/32bit machines.
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* Some of these macros may be overridden by CPU-specific code above.
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*
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* ANSI C requires that the following equations be true:
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* \code
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* sizeof(char) <= sizeof(short) <= sizeof(int) <= sizeof(long)
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* sizeof(float) <= sizeof(double)
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* CPU_BITS_PER_CHAR >= 8
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* CPU_BITS_PER_SHORT >= 8
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* CPU_BITS_PER_INT >= 16
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* CPU_BITS_PER_LONG >= 32
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* \endcode
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* \{
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*/
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#ifndef SIZEOF_CHAR
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#define SIZEOF_CHAR 1
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#endif
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#ifndef SIZEOF_SHORT
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#define SIZEOF_SHORT 2
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#endif
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#ifndef SIZEOF_INT
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#if CPU_REG_BITS < 32
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#define SIZEOF_INT 2
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#else
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#define SIZEOF_INT 4
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#endif
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#endif /* !SIZEOF_INT */
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#ifndef SIZEOF_LONG
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#if CPU_REG_BITS > 32
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#define SIZEOF_LONG 8
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#else
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#define SIZEOF_LONG 4
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#endif
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#endif
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#ifndef SIZEOF_PTR
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#if CPU_REG_BITS < 32
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#define SIZEOF_PTR 2
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#elif CPU_REG_BITS == 32
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#define SIZEOF_PTR 4
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#else /* CPU_REG_BITS > 32 */
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#define SIZEOF_PTR 8
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#endif
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#endif
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#ifndef SIZEOF_SIZE_T
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#if CPU_REG_BITS < 32
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#define SIZEOF_SIZE_T 2
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#elif CPU_REG_BITS == 32
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#define SIZEOF_SIZE_T 4
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#else /* CPU_REG_BITS > 32 */
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#define SIZEOF_SIZE_T 8
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#endif
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#endif
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#ifndef CPU_BITS_PER_CHAR
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#define CPU_BITS_PER_CHAR (SIZEOF_CHAR * 8)
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#endif
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#ifndef CPU_BITS_PER_SHORT
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#define CPU_BITS_PER_SHORT (SIZEOF_SHORT * CPU_BITS_PER_CHAR)
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#endif
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#ifndef CPU_BITS_PER_INT
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#define CPU_BITS_PER_INT (SIZEOF_INT * CPU_BITS_PER_CHAR)
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#endif
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#ifndef CPU_BITS_PER_LONG
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#define CPU_BITS_PER_LONG (SIZEOF_LONG * CPU_BITS_PER_CHAR)
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#endif
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#ifndef CPU_BITS_PER_PTR
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#define CPU_BITS_PER_PTR (SIZEOF_PTR * CPU_BITS_PER_CHAR)
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#endif
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/*\}*/
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#ifndef INT_MAX
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#define INT_MAX ((int)((unsigned int)~0 >> 1))
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#define INT_MIN (-INT_MAX - 1)
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#endif
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/* Sanity checks for the above definitions */
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STATIC_ASSERT(sizeof(char) == SIZEOF_CHAR);
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STATIC_ASSERT(sizeof(short) == SIZEOF_SHORT);
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STATIC_ASSERT(sizeof(long) == SIZEOF_LONG);
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STATIC_ASSERT(sizeof(int) == SIZEOF_INT);
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STATIC_ASSERT(sizeof(void *) == SIZEOF_PTR);
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STATIC_ASSERT(sizeof(int8_t) * CPU_BITS_PER_CHAR == 8);
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STATIC_ASSERT(sizeof(uint8_t) * CPU_BITS_PER_CHAR == 8);
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STATIC_ASSERT(sizeof(int16_t) * CPU_BITS_PER_CHAR == 16);
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STATIC_ASSERT(sizeof(uint16_t) * CPU_BITS_PER_CHAR == 16);
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STATIC_ASSERT(sizeof(int32_t) * CPU_BITS_PER_CHAR == 32);
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STATIC_ASSERT(sizeof(uint32_t) * CPU_BITS_PER_CHAR == 32);
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#ifdef __HAS_INT64_T__
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STATIC_ASSERT(sizeof(int64_t) * CPU_BITS_PER_CHAR == 64);
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STATIC_ASSERT(sizeof(uint64_t) * CPU_BITS_PER_CHAR == 64);
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#endif
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STATIC_ASSERT(sizeof(cpu_stack_t) == SIZEOF_CPUSTACK_T);
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STATIC_ASSERT(sizeof(cpu_aligned_stack_t) == SIZEOF_CPUALIGNED_T);
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STATIC_ASSERT(sizeof(size_t) == SIZEOF_SIZE_T);
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/**
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* Macros for hardware access, both direct and via the bit-band region.
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*/
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/*\{*/
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#define HWREG(x) (*((reg32_t *)(x)))
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#define HWREGH(x) (*((reg16_t *)(x)))
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#define HWREGB(x) (*((reg8_t *)(x)))
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/*\}*/
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#endif /* CPU_TYPES_H */
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