Nordic stack and drivers for the mbed BLE API
Fork of nRF51822 by
TARGET_MCU_NRF51822/sdk/source/libraries/util/app_util_platform.h
- Committer:
- Vincent Coubard
- Date:
- 2016-09-14
- Revision:
- 640:c90ae1400bf2
File content as of revision 640:c90ae1400bf2:
/* * Copyright (c) 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 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 other * contributors to this software may be used to endorse or promote products * derived from this software without specific prior written permission. * * * 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 app_util_platform Utility Functions and Definitions (Platform) * @{ * @ingroup app_common * * @brief Various types and definitions available to all applications when using SoftDevice. */ #ifndef APP_UTIL_PLATFORM_H__ #define APP_UTIL_PLATFORM_H__ #include <stdint.h> #include "compiler_abstraction.h" #include "nrf.h" #ifdef SOFTDEVICE_PRESENT #include "nrf_soc.h" #include "app_error.h" #endif /**@brief The interrupt priorities available to the application while the SoftDevice is active. */ typedef enum { #ifndef SOFTDEVICE_PRESENT APP_IRQ_PRIORITY_HIGHEST = 0, #endif APP_IRQ_PRIORITY_HIGH = 1, #ifndef SOFTDEVICE_PRESENT APP_IRQ_PRIORITY_MID = 2, #endif APP_IRQ_PRIORITY_LOW = 3 } app_irq_priority_t; #define NRF_APP_PRIORITY_THREAD 4 /**< "Interrupt level" when running in Thread Mode. */ /**@cond NO_DOXYGEN */ #define EXTERNAL_INT_VECTOR_OFFSET 16 /**@endcond */ #define PACKED(TYPE) __packed TYPE void critical_region_enter (void); void critical_region_exit (void); /**@brief Macro for entering a critical region. * * @note Due to implementation details, there must exist one and only one call to * CRITICAL_REGION_EXIT() for each call to CRITICAL_REGION_ENTER(), and they must be located * in the same scope. */ #ifdef SOFTDEVICE_PRESENT #define CRITICAL_REGION_ENTER() \ { \ uint8_t IS_NESTED_CRITICAL_REGION = 0; \ uint32_t CURRENT_INT_PRI = current_int_priority_get(); \ if (CURRENT_INT_PRI != APP_IRQ_PRIORITY_HIGH) \ { \ uint32_t ERR_CODE = sd_nvic_critical_region_enter(&IS_NESTED_CRITICAL_REGION); \ if (ERR_CODE == NRF_ERROR_SOFTDEVICE_NOT_ENABLED) \ { \ __disable_irq(); \ } \ else \ { \ APP_ERROR_CHECK(ERR_CODE); \ } \ } #else #define CRITICAL_REGION_ENTER() critical_region_enter() #endif /**@brief Macro for leaving a critical region. * * @note Due to implementation details, there must exist one and only one call to * CRITICAL_REGION_EXIT() for each call to CRITICAL_REGION_ENTER(), and they must be located * in the same scope. */ #ifdef SOFTDEVICE_PRESENT #define CRITICAL_REGION_EXIT() \ if (CURRENT_INT_PRI != APP_IRQ_PRIORITY_HIGH) \ { \ uint32_t ERR_CODE; \ __enable_irq(); \ ERR_CODE = sd_nvic_critical_region_exit(IS_NESTED_CRITICAL_REGION); \ if (ERR_CODE != NRF_ERROR_SOFTDEVICE_NOT_ENABLED) \ { \ APP_ERROR_CHECK(ERR_CODE); \ } \ } \ } #else #define CRITICAL_REGION_EXIT() critical_region_exit() #endif /**@brief Function for finding the current interrupt level. * * @return Current interrupt level. * @retval APP_IRQ_PRIORITY_HIGH We are running in Application High interrupt level. * @retval APP_IRQ_PRIORITY_LOW We are running in Application Low interrupt level. * @retval APP_IRQ_PRIORITY_THREAD We are running in Thread Mode. */ static __INLINE uint8_t current_int_priority_get(void) { uint32_t isr_vector_num = (SCB->ICSR & SCB_ICSR_VECTACTIVE_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 NRF_APP_PRIORITY_THREAD; } } #endif // APP_UTIL_PLATFORM_H__ /** @} */