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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/sdk_mapped_flags.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/sdk_mapped_flags.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/sdk_mapped_flags.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/sdk_mapped_flags.c new file mode 100644 index 0000000..df5c09a --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/sdk_mapped_flags.c @@ -0,0 +1,220 @@ +/** + * Copyright (c) 2015 - 2018, Nordic Semiconductor ASA + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, 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. + * + * 3. Neither the name of Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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. + * + */ +#include "sdk_mapped_flags.h" +#include <stdint.h> +#include <stdbool.h> +#include <stddef.h> +#include "compiler_abstraction.h" + + +// Test whether the flag collection type is large enough to hold all the flags. If this fails, +// reduce SDK_MAPPED_FLAGS_N_KEYS or increase the size of sdk_mapped_flags_t. +STATIC_ASSERT((sizeof(sdk_mapped_flags_t) * SDK_MAPPED_FLAGS_N_KEYS_PER_BYTE) >= SDK_MAPPED_FLAGS_N_KEYS); + + +/**@brief Function for setting the state of a flag to true. + * + * @note This function does not check whether the index is valid. + * + * @param[in] p_flags The collection of flags to modify. + * @param[in] index The index of the flag to modify. + */ +static __INLINE void sdk_mapped_flags_set_by_index(sdk_mapped_flags_t * p_flags, uint16_t index) +{ + *p_flags |= (1U << index); +} + + +/**@brief Function for setting the state of a flag to false. + * + * @note This function does not check whether the index is valid. + * + * @param[in] p_flags The collection of flags to modify. + * @param[in] index The index of the flag to modify. + */ +static __INLINE void sdk_mapped_flags_clear_by_index(sdk_mapped_flags_t * p_flags, uint16_t index) +{ + *p_flags &= ~(1U << index); +} + + +/**@brief Function for getting the state of a flag. + * + * @note This function does not check whether the index is valid. + * + * @param[in] p_flags The collection of flags to read. + * @param[in] index The index of the flag to get. + */ +static __INLINE bool sdk_mapped_flags_get_by_index(sdk_mapped_flags_t flags, uint16_t index) +{ + return ((flags & (1 << index)) != 0); +} + + + +uint16_t sdk_mapped_flags_first_key_index_get(sdk_mapped_flags_t flags) +{ + for (uint16_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++) + { + if (sdk_mapped_flags_get_by_index(flags, i)) + { + return i; + } + } + return SDK_MAPPED_FLAGS_INVALID_INDEX; +} + + +void sdk_mapped_flags_update_by_key(uint16_t * p_keys, + sdk_mapped_flags_t * p_flags, + uint16_t key, + bool value) +{ + sdk_mapped_flags_bulk_update_by_key(p_keys, p_flags, 1, key, value); +} + + +void sdk_mapped_flags_bulk_update_by_key(uint16_t * p_keys, + sdk_mapped_flags_t * p_flags, + uint32_t n_flag_collections, + uint16_t key, + bool value) +{ + if ((p_keys != NULL) && (p_flags != NULL) && (n_flag_collections > 0)) + { + for (uint32_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++) + { + if (p_keys[i] == key) + { + for (uint32_t j = 0; j < n_flag_collections; j++) + { + if (value) + { + sdk_mapped_flags_set_by_index(&p_flags[j], i); + } + else + { + sdk_mapped_flags_clear_by_index(&p_flags[j], i); + } + } + return; + } + } + } +} + + +bool sdk_mapped_flags_get_by_key_w_idx(uint16_t * p_keys, + sdk_mapped_flags_t flags, + uint16_t key, + uint8_t * p_index) +{ + if (p_keys != NULL) + { + for (uint32_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++) + { + if (p_keys[i] == key) + { + if (p_index != NULL) + { + *p_index = i; + } + return sdk_mapped_flags_get_by_index(flags, i); + } + } + } + if (p_index != NULL) + { + *p_index = SDK_MAPPED_FLAGS_N_KEYS; + } + return false; +} + + +bool sdk_mapped_flags_get_by_key(uint16_t * p_keys, sdk_mapped_flags_t flags, uint16_t key) +{ + if (p_keys != NULL) + { + for (uint32_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++) + { + if (p_keys[i] == key) + { + return sdk_mapped_flags_get_by_index(flags, i); + } + } + } + return false; +} + + +sdk_mapped_flags_key_list_t sdk_mapped_flags_key_list_get(uint16_t * p_keys, + sdk_mapped_flags_t flags) +{ + sdk_mapped_flags_key_list_t key_list; + key_list.len = 0; + + if (p_keys != NULL) + { + for (uint32_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++) + { + if (sdk_mapped_flags_get_by_index(flags, i)) + { + key_list.flag_keys[key_list.len++] = p_keys[i]; + } + } + } + + return key_list; +} + + +uint32_t sdk_mapped_flags_n_flags_set(sdk_mapped_flags_t flags) +{ + uint32_t n_flags_set = 0; + + for (uint32_t i = 0; i < SDK_MAPPED_FLAGS_N_KEYS; i++) + { + if (sdk_mapped_flags_get_by_index(flags, i)) + { + n_flags_set += 1; + } + } + return n_flags_set; +} |