tisci_bitops.h

Go to the documentation of this file.

/*
 *  Copyright (C) 2016-2024 Texas Instruments Incorporated
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *    Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 *    Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 *    Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
#ifndef BITOPS_H
#define BITOPS_H
 
#ifdef __cplusplus
extern "C"
{
#endif
 
 
 
#define TISCI_BIT(n)  (((uint32_t) 1U) << (n))
 
 
static inline uint32_t get_field(uint32_t val, uint32_t end, uint32_t start);
static inline uint32_t set_field(uint32_t tgt, uint32_t end, uint32_t start, uint32_t val);
static inline uint32_t get_mask(uint32_t end, uint32_t start);
 
static inline uint32_t get_mask(uint32_t end, uint32_t start)
{
    return (uint32_t) ((1U << (end - start + 1U)) - 1U) << start;
}
 
static inline uint32_t get_field(uint32_t val, uint32_t end, uint32_t start)
{
    uint32_t mask = get_mask(end, start);
 
    return (val & mask) >> start;
}
 
static inline uint32_t set_field(uint32_t tgt, uint32_t end, uint32_t start, uint32_t val)
{
    uint32_t ret = 0U;
    uint32_t mask = get_mask(end, start);
 
    ret = (tgt & (~mask));
 
    ret = (ret | ((val << start) & mask));
 
    return ret;
}
 
 
#ifdef __cplusplus
}
#endif
 
#endif