tisci_bitops.h

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/*
 *  Copyright (C) 2017-2022 Texas Instruments Incorporated
 *
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 *    notice, this list of conditions and the following disclaimer.
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 *    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.
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 *    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
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 */
#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 ((1U << (end - start + 1)) - 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