/* * Copyright (c) 2014 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 "app_util_platform.h" static uint32_t m_in_critical_region = 0; void app_util_disable_irq(void) { __disable_irq(); m_in_critical_region++; } void app_util_enable_irq(void) { m_in_critical_region--; if (m_in_critical_region == 0) { __enable_irq(); } } void app_util_critical_region_enter(uint8_t *p_nested) { #ifdef NRF52 ASSERT(APP_LEVEL_PRIVILEGED == privilege_level_get()) #endif #if defined(SOFTDEVICE_PRESENT) /* return value can be safely ignored */ (void) sd_nvic_critical_region_enter(p_nested); #else app_util_disable_irq(); #endif } void app_util_critical_region_exit(uint8_t nested) { #ifdef NRF52 ASSERT(APP_LEVEL_PRIVILEGED == privilege_level_get()) #endif #if defined(SOFTDEVICE_PRESENT) /* return value can be safely ignored */ (void) sd_nvic_critical_region_exit(nested); #else app_util_enable_irq(); #endif }