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- /***************************************************************************//**
- * @file
- * @brief EFM32 bitband utilities.
- * @author Energy Micro AS
- * @version 1.3.0
- *******************************************************************************
- * @section License
- * <b>(C) Copyright 2010 Energy Micro AS, http://www.energymicro.com</b>
- *******************************************************************************
- *
- * This source code is the property of Energy Micro AS. The source and compiled
- * code may only be used on Energy Micro "EFM32" microcontrollers.
- *
- * This copyright notice may not be removed from the source code nor changed.
- *
- * 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 __EFM32_BITBAND_H
- #define __EFM32_BITBAND_H
- #include "efm32.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- /***************************************************************************//**
- * @addtogroup EFM32_Library
- * @{
- ******************************************************************************/
- /***************************************************************************//**
- * @addtogroup BITBAND
- * @brief EFM32 bit-band utilities.
- * @{
- ******************************************************************************/
- /***************************************************************************//**
- * @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 EFM32_Library) */
- #ifdef __cplusplus
- }
- #endif
- #endif /* __EFM32_BITBAND_H */
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