cabbd21329
We should not add compiler extensions, it is not our job. We are not a selfcontained project as kernel is so we should not introduce things like this. If we need to add some abstraction for this in the future to support compilers doing these things differently then we will do that the same way we dealt with the depricated attribute.
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LIBOPENCM3_CM3_COMMON_H
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#define LIBOPENCM3_CM3_COMMON_H
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#include <stdint.h>
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#include <stdbool.h>
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/* This must be placed around external function declaration for C++
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* support. */
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#ifdef __cplusplus
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# define BEGIN_DECLS extern "C" {
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# define END_DECLS }
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#else
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# define BEGIN_DECLS
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# define END_DECLS
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#endif
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/* Full-featured deprecation attribute with fallback for older compilers. */
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#ifdef __GNUC__
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# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)
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# define LIBOPENCM3_DEPRECATED(x) __attribute__((deprecated(x)))
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# else
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# define LIBOPENCM3_DEPRECATED(x) __attribute__((deprecated))
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# endif
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#else
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# define LIBOPENCM3_DEPRECATED(x)
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#endif
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/* Generic memory-mapped I/O accessor functions */
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#define MMIO8(addr) (*(volatile uint8_t *)(addr))
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#define MMIO16(addr) (*(volatile uint16_t *)(addr))
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#define MMIO32(addr) (*(volatile uint32_t *)(addr))
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#define MMIO64(addr) (*(volatile uint64_t *)(addr))
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/* Generic bit definition */
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#define BIT0 (1<<0)
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#define BIT1 (1<<1)
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#define BIT2 (1<<2)
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#define BIT3 (1<<3)
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#define BIT4 (1<<4)
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#define BIT5 (1<<5)
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#define BIT6 (1<<6)
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#define BIT7 (1<<7)
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#define BIT8 (1<<8)
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#define BIT9 (1<<9)
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#define BIT10 (1<<10)
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#define BIT11 (1<<11)
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#define BIT12 (1<<12)
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#define BIT13 (1<<13)
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#define BIT14 (1<<14)
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#define BIT15 (1<<15)
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#define BIT16 (1<<16)
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#define BIT17 (1<<17)
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#define BIT18 (1<<18)
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#define BIT19 (1<<19)
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#define BIT20 (1<<20)
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#define BIT21 (1<<21)
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#define BIT22 (1<<22)
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#define BIT23 (1<<23)
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#define BIT24 (1<<24)
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#define BIT25 (1<<25)
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#define BIT26 (1<<26)
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#define BIT27 (1<<27)
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#define BIT28 (1<<28)
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#define BIT29 (1<<29)
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#define BIT30 (1<<30)
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#define BIT31 (1<<31)
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#endif
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