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/***************************************************************************//**
* @file
* @brief Bitband Peripheral API
* @author Energy Micro AS
* @version 3.0.0
*******************************************************************************
* @section License
* <b>(C) Copyright 2012 Energy Micro AS, http://www.energymicro.com</b>
*******************************************************************************
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Energy Micro AS has no
* obligation to support this Software. Energy Micro AS is providing the
* Software "AS IS", with no express or implied warranties of any kind,
* including, but not limited to, any implied warranties of merchantability
* or fitness for any particular purpose or warranties against infringement
* of any proprietary rights of a third party.
*
* Energy Micro AS will not be liable for any consequential, incidental, or
* special damages, or any other relief, or for any claim by any third party,
* arising from your use of this Software.
*
******************************************************************************/
#ifndef __EM_BITBAND_H
#define __EM_BITBAND_H
#include "em_part.h"
#ifdef __cplusplus
extern "C" {
#endif
/***************************************************************************//**
* @addtogroup EM_Library
* @{
******************************************************************************/
/***************************************************************************//**
* @addtogroup BITBAND
* @brief BITBAND Peripheral API
* @{
******************************************************************************/
/***************************************************************************//**
* @brief
* Perform bit-band operation on peripheral memory location.
*
* @details
* Bit-banding provides atomic read-modify-write cycle for single bit
* modification. Please refer to the reference manual for further details
* about bit-banding.
*
* @param[in,out] addr Peripheral address location to modify bit in.
*
* @param[in] bit Bit position to modify, 0-31.
*
* @param[in] val Value to set bit to, 0 or 1.
******************************************************************************/
__STATIC_INLINE void BITBAND_Peripheral(volatile uint32_t *addr,
uint32_t bit,
uint32_t val)
{
uint32_t tmp = BITBAND_PER_BASE + (((uint32_t)addr - PER_MEM_BASE) * 32) + (bit * 4);
*((volatile uint32_t *)tmp) = (uint32_t)val;
}
/***************************************************************************//**
* @brief
* Perform bit-band operation on SRAM memory location.
*
* @details
* Bit-banding provides atomic read-modify-write cycle for single bit
* modification. Please refer to the reference manual for further details
* about bit-banding.
*
* @param[in,out] addr SRAM address location to modify bit in.
*
* @param[in] bit Bit position to modify, 0-31.
*
* @param[in] val Value to set bit to, 0 or 1.
******************************************************************************/
__STATIC_INLINE void BITBAND_SRAM(uint32_t *addr, uint32_t bit, uint32_t val)
{
uint32_t tmp = BITBAND_RAM_BASE + (((uint32_t)addr - RAM_MEM_BASE) * 32) + (bit * 4);
*((volatile uint32_t *)tmp) = (uint32_t)val;
}
/** @} (end addtogroup BITBAND) */
/** @} (end addtogroup EM_Library) */
#ifdef __cplusplus
}
#endif
#endif /* __EM_BITBAND_H */
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