162 lines
4.6 KiB
C
162 lines
4.6 KiB
C
/* Copyright (c) 2015 Nordic Semiconductor. All Rights Reserved.
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*
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* The information contained herein is property of Nordic Semiconductor ASA.
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* Terms and conditions of usage are described in detail in NORDIC
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* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
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*
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* Licensees are granted free, non-transferable use of the information. NO
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* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
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* the file.
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*
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*/
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#include "sdk_mapped_flags.h"
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#include <stdint.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include "compiler_abstraction.h"
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/**@brief Function for setting the state of a flag to true.
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*
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* @note This function does not check whether the index is valid.
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*
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* @param[in] p_flags The collection of flags to modify.
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* @param[in] index The index of the flag to modify.
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*/
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static __INLINE void sdk_mapped_flags_set_by_index(sdk_mapped_flags_t * p_flags, uint16_t index)
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{
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*p_flags |= (1U << index);
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}
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/**@brief Function for setting the state of a flag to false.
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*
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* @note This function does not check whether the index is valid.
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*
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* @param[in] p_flags The collection of flags to modify.
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* @param[in] index The index of the flag to modify.
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*/
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static __INLINE void sdk_mapped_flags_clear_by_index(sdk_mapped_flags_t * p_flags, uint16_t index)
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{
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*p_flags &= ~(1U << index);
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}
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/**@brief Function for getting the state of a flag.
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*
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* @note This function does not check whether the index is valid.
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*
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* @param[in] p_flags The collection of flags to read.
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* @param[in] index The index of the flag to get.
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*/
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static __INLINE bool sdk_mapped_flags_get_by_index(sdk_mapped_flags_t flags, uint16_t index)
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{
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return ((flags & (1 << index)) != 0);
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}
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uint16_t sdk_mapped_flags_first_key_index_get(sdk_mapped_flags_t flags)
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{
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for (uint16_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
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{
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if (sdk_mapped_flags_get_by_index(flags, i))
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{
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return i;
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}
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}
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return SDK_MAPPED_FLAGS_INVALID_INDEX;
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}
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void sdk_mapped_flags_update_by_key(uint16_t * p_keys,
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sdk_mapped_flags_t * p_flags,
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uint16_t key,
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bool value)
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{
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sdk_mapped_flags_bulk_update_by_key(p_keys, p_flags, 1, key, value);
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}
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void sdk_mapped_flags_bulk_update_by_key(uint16_t * p_keys,
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sdk_mapped_flags_t * p_flags,
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uint32_t n_flag_collections,
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uint16_t key,
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bool value)
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{
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if ((p_keys != NULL) && (p_flags != NULL) && (n_flag_collections > 0))
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{
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for (uint32_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
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{
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if (p_keys[i] == key)
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{
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for (uint32_t j = 0; j < n_flag_collections; j++)
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{
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if (value)
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{
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sdk_mapped_flags_set_by_index(&p_flags[j], i);
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}
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else
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{
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sdk_mapped_flags_clear_by_index(&p_flags[j], i);
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}
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}
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return;
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}
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}
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}
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}
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bool sdk_mapped_flags_get_by_key(uint16_t * p_keys, sdk_mapped_flags_t flags, uint16_t key)
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{
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if (p_keys != NULL)
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{
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for (uint32_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
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{
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if (p_keys[i] == key)
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{
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return sdk_mapped_flags_get_by_index(flags, i);
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}
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}
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}
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return false;
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}
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sdk_mapped_flags_key_list_t sdk_mapped_flags_key_list_get(uint16_t * p_keys,
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sdk_mapped_flags_t flags)
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{
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sdk_mapped_flags_key_list_t key_list;
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key_list.len = 0;
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if (p_keys != NULL)
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{
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for (uint32_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
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{
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if (sdk_mapped_flags_get_by_index(flags, i))
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{
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key_list.flag_keys[key_list.len++] = p_keys[i];
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}
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}
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}
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return key_list;
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}
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uint32_t sdk_mapped_flags_n_flags_set(sdk_mapped_flags_t flags)
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{
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uint32_t n_flags_set = 0;
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for (uint32_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++)
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{
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if (sdk_mapped_flags_get_by_index(flags, i))
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{
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n_flags_set += 1;
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}
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}
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return n_flags_set;
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}
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