nochanges
Dependents: BLE_Acceleration_Statejudging
Fork of nRF51822 by
nordic/nrf-sdk/sd_common/app_util_platform.h
- Committer:
- Rohit Grover
- Date:
- 2014-07-07
- Revision:
- 37:c29c330d942c
- Child:
- 65:98215c4f3a25
File content as of revision 37:c29c330d942c:
/* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved. * * The information contained herein is property of Nordic Semiconductor ASA. * Terms and conditions of usage are described in detail in NORDIC * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. * * Licensees are granted free, non-transferable use of the information. NO * WARRANTY of ANY KIND is provided. This heading must NOT be removed from * the file. * */ /**@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 "nrf51.h" #include "app_error.h" /**@brief The interrupt priorities available to the application while the SoftDevice is active. */ typedef enum { APP_IRQ_PRIORITY_HIGH = 1, 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 /**@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. */ #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); \ } \ } /**@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. */ #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); \ } \ } \ } /**@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__ /** @} */