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µTVM RPC server and Part 1 of AutoTVM compilation infrastructure (apa…
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3rdparty/mbed-os/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_SDK_11/libraries/crc16/crc16.c
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /* | ||
| * Copyright (c) 2013 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 or object form under this license must not be reverse | ||
| * engineered, decompiled, modified and/or disassembled. | ||
| * | ||
| * 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 HOLDER 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 "crc16.h" | ||
|
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| #include <stdlib.h> | ||
|
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| uint16_t crc16_compute(uint8_t const* p_data, uint32_t size, uint16_t const* p_crc) { | ||
| uint16_t crc = (p_crc == NULL) ? 0xFFFF : *p_crc; | ||
|
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| for (uint32_t i = 0; i < size; i++) { | ||
| crc = (uint8_t)(crc >> 8) | (crc << 8); | ||
| crc ^= p_data[i]; | ||
| crc ^= (uint8_t)(crc & 0xFF) >> 4; | ||
| crc ^= (crc << 8) << 4; | ||
| crc ^= ((crc & 0xFF) << 4) << 1; | ||
| } | ||
|
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| return crc; | ||
| } |
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3rdparty/mbed-os/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_SDK_11/libraries/crc16/crc16.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| /* | ||
| * Copyright (c) 2013 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 or object form under this license must not be reverse | ||
| * engineered, decompiled, modified and/or disassembled. | ||
| * | ||
| * 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 HOLDER 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. | ||
| * | ||
| */ | ||
|
|
||
| /** @file | ||
| * | ||
| * @defgroup crc_compute CRC compute | ||
| * @{ | ||
| * @ingroup hci_transport | ||
| * | ||
| * @brief This module implements CRC-16-CCITT (polynomial 0x1021) with 0xFFFF initial value. | ||
| * The data can be passed in multiple blocks. | ||
| */ | ||
|
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| #ifndef CRC16_H__ | ||
| #define CRC16_H__ | ||
|
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| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
|
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| #include <stdint.h> | ||
|
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| /**@brief Function for calculating CRC-16 in blocks. | ||
| * | ||
| * Feed each consecutive data block into this function, along with the current value of p_crc as | ||
| * returned by the previous call of this function. The first call of this function should pass NULL | ||
| * as the initial value of the crc in p_crc. | ||
| * | ||
| * @param[in] p_data The input data block for computation. | ||
| * @param[in] size The size of the input data block in bytes. | ||
| * @param[in] p_crc The previous calculated CRC-16 value or NULL if first call. | ||
| * | ||
| * @return The updated CRC-16 value, based on the input supplied. | ||
| */ | ||
| uint16_t crc16_compute(uint8_t const* p_data, uint32_t size, uint16_t const* p_crc); | ||
|
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| #ifdef __cplusplus | ||
| } // extern "C" | ||
| #endif | ||
|
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| #endif // CRC16_H__ | ||
|
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| /** @} */ |
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