82 lines
3.4 KiB
C
82 lines
3.4 KiB
C
/****************************************************************************
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* arch/arm/src/efm32/efm32_bitband.h
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*
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* Copyright (C) 2015 Pierre-noel Bouteville . All rights reserved.
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* Authors: Pierre-noel Bouteville <pnb990@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_EFM32_EFM32_BITBAND_H
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#define __ARCH_ARM_SRC_EFM32_EFM32_BITBAND_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include "hardware/efm32_memorymap.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#if defined(CONFIG_EFM32_BITBAND)
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inline void bitband_set_peripheral(uint32_t addr, uint32_t bit, uint32_t val);
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inline uint32_t bitband_get_peripheral(uint32_t addr, uint32_t bit);
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inline void bitband_set_sram(uint32_t addr, uint32_t bit, uint32_t val);
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inline uint32_t bitband_get_sram(uint32_t addr, uint32_t bit);
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#else
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# define bitband_set_peripheral(addr,bit,val)\
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modifyreg32(addr,~(1<<bit),(1<<bit))
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# define bitband_get_peripheral(addr,bit) (((getreg32(addr)) >> bit) & 1)
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# define bitband_set_sram(add,bit,val)\
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modifyreg32(addr,~(1<<bit),(1<<bit))
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# define bitband_get_sram(addr,bit) (((getreg32(addr)) >> bit) & 1)
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#endif
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#endif /* __ARCH_ARM_SRC_EFM32_EFM32_BITBAND_H */
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