diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/app_util_platform.c')
-rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/app_util_platform.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/app_util_platform.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/app_util_platform.c new file mode 100644 index 0000000..71690d0 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/util/app_util_platform.c @@ -0,0 +1,127 @@ +/** + * Copyright (c) 2014 - 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 "app_util_platform.h" + +#ifdef SOFTDEVICE_PRESENT +/* Global nvic state instance, required by nrf_nvic.h */ +nrf_nvic_state_t nrf_nvic_state; +#endif + +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) +{ +#if __CORTEX_M == (0x04U) + 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) +{ +#if __CORTEX_M == (0x04U) + 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 +} + + +uint8_t privilege_level_get(void) +{ +#if __CORTEX_M == (0x00U) || defined(_WIN32) || defined(__unix) || defined(__APPLE__) + /* the Cortex-M0 has no concept of privilege */ + return APP_LEVEL_PRIVILEGED; +#elif __CORTEX_M == (0x04U) + uint32_t isr_vector_num = __get_IPSR() & IPSR_ISR_Msk ; + if (0 == isr_vector_num) + { + /* Thread Mode, check nPRIV */ + int32_t control = __get_CONTROL(); + return control & CONTROL_nPRIV_Msk ? APP_LEVEL_UNPRIVILEGED : APP_LEVEL_PRIVILEGED; + } + else + { + /* Handler Mode, always privileged */ + return APP_LEVEL_PRIVILEGED; + } +#endif +} + + +uint8_t current_int_priority_get(void) +{ + uint32_t isr_vector_num = __get_IPSR() & IPSR_ISR_Msk ; + if (isr_vector_num > 0) + { + int32_t irq_type = ((int32_t)isr_vector_num - EXTERNAL_INT_VECTOR_OFFSET); + return (NVIC_GetPriority((IRQn_Type)irq_type) & 0xFF); + } + else + { + return APP_IRQ_PRIORITY_THREAD; + } +} |