From 3061ecca3d0fdfb87dabbf5f63c9e06c2a30f53a Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Thu, 23 Aug 2018 17:08:59 +0200 Subject: o Initial import. --- .../components/libraries/util/nrf_bitmask.h | 147 +++++++++++++++++++++ 1 file changed, 147 insertions(+) create mode 100644 thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/nrf_bitmask.h (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/nrf_bitmask.h') diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/nrf_bitmask.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/nrf_bitmask.h new file mode 100644 index 0000000..be2eac5 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/nrf_bitmask.h @@ -0,0 +1,147 @@ +/** + * Copyright (c) 2006 - 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. + * + */ +#ifndef NRF_BITMASK_H +#define NRF_BITMASK_H + +#include "compiler_abstraction.h" +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#define BITMASK_BYTE_GET(abs_bit) ((abs_bit)/8) +#define BITMASK_RELBIT_GET(abs_bit) ((abs_bit) & 0x00000007) + +/** + * Function for checking if bit in the multi-byte bit mask is set. + * + * @param bit Bit index. + * @param p_mask A pointer to mask with bit fields. + * + * @return 0 if bit is not set, positive value otherwise. + */ +__STATIC_INLINE uint32_t nrf_bitmask_bit_is_set(uint32_t bit, void const * p_mask) +{ + uint8_t const * p_mask8 = (uint8_t const *)p_mask; + uint32_t byte_idx = BITMASK_BYTE_GET(bit); + bit = BITMASK_RELBIT_GET(bit); + return (1 << bit) & p_mask8[byte_idx]; +} + +/** + * Function for setting a bit in the multi-byte bit mask. + * + * @param bit Bit index. + * @param p_mask A pointer to mask with bit fields. + */ +__STATIC_INLINE void nrf_bitmask_bit_set(uint32_t bit, void * p_mask) +{ + uint8_t * p_mask8 = (uint8_t *)p_mask; + uint32_t byte_idx = BITMASK_BYTE_GET(bit); + bit = BITMASK_RELBIT_GET(bit); + p_mask8[byte_idx] |= (1 << bit); +} + +/** + * Function for clearing a bit in the multi-byte bit mask. + * + * @param bit Bit index. + * @param p_mask A pointer to mask with bit fields. + */ +__STATIC_INLINE void nrf_bitmask_bit_clear(uint32_t bit, void * p_mask) +{ + uint8_t * p_mask8 = (uint8_t *)p_mask; + uint32_t byte_idx = BITMASK_BYTE_GET(bit); + bit = BITMASK_RELBIT_GET(bit); + p_mask8[byte_idx] &= ~(1 << bit); +} + +/** + * Function for performing bitwise OR operation on two multi-byte bit masks. + * + * @param p_mask1 A pointer to the first bit mask. + * @param p_mask2 A pointer to the second bit mask. + * @param p_mask_out A pointer to the output bit mask. + * @param length Length of output mask in bytes. + */ +__STATIC_INLINE void nrf_bitmask_masks_or(void const * p_mask1, + void const * p_mask2, + void * p_out_mask, + uint32_t length) +{ + uint8_t const * p_mask8_1 = (uint8_t const *)p_mask1; + uint8_t const * p_mask8_2 = (uint8_t const *)p_mask2; + uint8_t * p_mask8_out = (uint8_t *)p_out_mask; + uint32_t i; + for (i = 0; i < length; i++) + { + p_mask8_out[i] = p_mask8_1[i] | p_mask8_2[i]; + } +} + +/** + * Function for performing bitwise AND operation on two multi-byte bit masks. + * + * @param p_mask1 A pointer to the first bit mask. + * @param p_mask2 A pointer to the second bit mask. + * @param p_mask_out A pointer to the output bit mask. + * @param length Length of output mask in bytes. + */ +__STATIC_INLINE void nrf_bitmask_masks_and(void const * p_mask1, + void const * p_mask2, + void * p_out_mask, + uint32_t length) +{ + uint8_t const * p_mask8_1 = (uint8_t const *)p_mask1; + uint8_t const * p_mask8_2 = (uint8_t const *)p_mask2; + uint8_t * p_mask8_out = (uint8_t *)p_out_mask; + uint32_t i; + for (i = 0; i < length; i++) + { + p_mask8_out[i] = p_mask8_1[i] & p_mask8_2[i]; + } +} + +#ifdef __cplusplus +} +#endif + +#endif //NRF_BITMASK_H -- cgit v1.2.3