The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Dependents: hello SerialTestv11 SerialTestv12 Sierpinski ... more
mbed 2
This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.
Diff: TARGET_TY51822R3/TOOLCHAIN_GCC_ARM/app_util_platform.h
- Revision:
- 171:3a7713b1edbc
- Parent:
- 169:a7c7b631e539
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_TY51822R3/TOOLCHAIN_GCC_ARM/app_util_platform.h Thu Nov 08 11:45:42 2018 +0000 @@ -0,0 +1,236 @@ +/* + * 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. + * + */ + + +/**@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 "nrf_nvic.h" +#endif +#include "nrf_assert.h" +#include "app_error.h" + +#if defined(NRF51) +#define _PRIO_SD_HIGH 0 +#define _PRIO_APP_HIGH 1 +#define _PRIO_APP_MID 1 +#define _PRIO_SD_LOW 2 +#define _PRIO_APP_LOW 3 +#define _PRIO_APP_LOWEST 3 +#define _PRIO_THREAD 4 +#elif defined(NRF52) +#define _PRIO_SD_HIGH 0 +#define _PRIO_SD_MID 1 +#define _PRIO_APP_HIGH 2 +#define _PRIO_APP_MID 3 +#define _PRIO_SD_LOW 4 +#define _PRIO_SD_LOWEST 5 +#define _PRIO_APP_LOW 6 +#define _PRIO_APP_LOWEST 7 +#define _PRIO_THREAD 15 +#else + #error "No platform defined" +#endif + +/**@brief The interrupt priorities available to the application while the SoftDevice is active. */ +typedef enum +{ +#ifdef SOFTDEVICE_PRESENT + APP_IRQ_PRIORITY_HIGHEST = _PRIO_SD_HIGH, +#else + APP_IRQ_PRIORITY_HIGHEST = _PRIO_APP_HIGH, +#endif + APP_IRQ_PRIORITY_HIGH = _PRIO_APP_HIGH, +#ifndef SOFTDEVICE_PRESENT + APP_IRQ_PRIORITY_MID = _PRIO_SD_LOW, +#else + APP_IRQ_PRIORITY_MID = _PRIO_APP_MID, +#endif + APP_IRQ_PRIORITY_LOW = _PRIO_APP_LOW, + APP_IRQ_PRIORITY_LOWEST = _PRIO_APP_LOWEST, + APP_IRQ_PRIORITY_THREAD = _PRIO_THREAD /**< "Interrupt level" when running in Thread Mode. */ +} app_irq_priority_t; + +/*@brief The privilege levels available to applications in Thread Mode */ +typedef enum +{ + APP_LEVEL_UNPRIVILEGED, + APP_LEVEL_PRIVILEGED +} app_level_t; + +/**@cond NO_DOXYGEN */ +#define EXTERNAL_INT_VECTOR_OFFSET 16 +/**@endcond */ + +void app_util_critical_region_enter (uint8_t *p_nested); +void app_util_critical_region_exit (uint8_t nested); + +/**@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 __CR_NESTED = 0; \ + app_util_critical_region_enter(&__CR_NESTED); +#else +#define CRITICAL_REGION_ENTER() app_util_critical_region_enter(NULL) +#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() \ + app_util_critical_region_exit(__CR_NESTED); \ + } +#else +#define CRITICAL_REGION_EXIT() app_util_critical_region_exit(0) +#endif + +/* Workaround for Keil 4 */ +#ifndef IPSR_ISR_Msk +#define IPSR_ISR_Msk (0x1FFUL /*<< IPSR_ISR_Pos*/) /*!< IPSR: ISR Mask */ +#endif + + + +/**@brief Macro to enable anonymous unions from a certain point in the code. + */ +#if defined(__CC_ARM) + #define ANON_UNIONS_ENABLE _Pragma("push") \ + _Pragma("anon_unions") +#elif defined(__ICCARM__) + #define ANON_UNIONS_ENABLE _Pragma("language=extended") +#else + #define ANON_UNIONS_ENABLE + // No action will be taken. + // For GCC anonymous unions are enabled by default. +#endif + +/**@brief Macro to disable anonymous unions from a certain point in the code. + * @note Call only after first calling @ref ANON_UNIONS_ENABLE. + */ +#if defined(__CC_ARM) + #define ANON_UNIONS_DISABLE _Pragma("pop") +#elif defined(__ICCARM__) + #define ANON_UNIONS_DISABLE + // for IAR leave anonymous unions enabled +#else + #define ANON_UNIONS_DISABLE + // No action will be taken. + // For GCC anonymous unions are enabled by default. +#endif + + +/* Workaround for Keil 4 */ +#ifndef CONTROL_nPRIV_Msk +#define CONTROL_nPRIV_Msk (1UL /*<< CONTROL_nPRIV_Pos*/) /*!< CONTROL: nPRIV Mask */ +#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 = __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; + } +} + +/**@brief Function for finding out the current privilege level. + * + * @return Current privilege level. + * @retval APP_LEVEL_UNPRIVILEGED We are running in unprivileged level. + * @retval APP_LEVEL_PRIVILEGED We are running in privileged level. + */ +static __INLINE uint8_t privilege_level_get(void) +{ +#if defined(NRF51) + /* the Cortex-M0 has no concept of privilege */ + return APP_LEVEL_PRIVILEGED; +#elif defined(NRF52) + 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 +} + +#endif // APP_UTIL_PLATFORM_H__ + +/** @} */