esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/include/freertos/portmacro.h

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/*
* SPDX-FileCopyrightText: 2017 Amazon.com, Inc. or its affiliates
* SPDX-FileCopyrightText: 2015-2019 Cadence Design Systems, Inc.
*
* SPDX-License-Identifier: MIT
*
* SPDX-FileContributor: 2016-2023 Espressif Systems (Shanghai) CO LTD
*/
/*
* FreeRTOS Kernel V10.4.3
* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software. If you wish to use our Amazon
* FreeRTOS name, please do so in a fair use way that does not cause confusion.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
* 1 tab == 4 spaces!
*/
/*
* Copyright (c) 2015-2019 Cadence Design Systems, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef PORTMACRO_H
#define PORTMACRO_H
#ifndef __ASSEMBLER__
#include "sdkconfig.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stdarg.h>
#include <xtensa/config/core.h>
#include <xtensa/hal.h> /* required for xthal_get_ccount. [refactor-todo] use cpu_hal instead */
#include <xtensa/xtruntime.h> /* required for XTOS_SET_INTLEVEL. [refactor-todo] add common intr functions to esp_hw_support */
#include "xt_instr_macros.h"
#include "spinlock.h"
#include "esp_private/crosscore_int.h"
#include "esp_macros.h"
#include "esp_attr.h"
#include "esp_cpu.h"
#include "esp_memory_utils.h"
#include "esp_newlib.h" /* required for esp_reent_init() in tasks.c */
#include "esp_heap_caps.h"
#include "esp_rom_sys.h"
#include "esp_system.h" /* required by esp_get_...() functions in portable.h. [refactor-todo] Update portable.h */
#include "portbenchmark.h"
/* [refactor-todo] These includes are not directly used in this file. They are kept into to prevent a breaking change. Remove these. */
#include <limits.h>
#include <xtensa/config/system.h>
#include <xtensa/xtensa_api.h>
/* [refactor-todo] introduce a port wrapper function to avoid including esp_timer.h into the public header */
#if CONFIG_FREERTOS_RUN_TIME_STATS_USING_ESP_TIMER
#include "esp_timer.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* --------------------------------------------------- Port Types ------------------------------------------------------
* - Port specific types.
* - The settings in this file configure FreeRTOS correctly for the given hardware and compiler.
* - These settings should not be altered.
* - The port types must come before first as they are used further down the file
* ------------------------------------------------------------------------------------------------------------------ */
#define portCHAR int8_t
#define portFLOAT float
#define portDOUBLE double
#define portLONG int32_t
#define portSHORT int16_t
#define portSTACK_TYPE uint8_t
#define portBASE_TYPE int
typedef portSTACK_TYPE StackType_t;
typedef portBASE_TYPE BaseType_t;
typedef unsigned portBASE_TYPE UBaseType_t;
#if( configUSE_16_BIT_TICKS == 1 )
typedef uint16_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffff
#else
typedef uint32_t TickType_t;
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
#endif
/* Task function macros as described on the FreeRTOS.org WEB site. */
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
/* ----------------------------------------------- Port Configurations -------------------------------------------------
* - Configurations values supplied by each port
* - Required by FreeRTOS
* ------------------------------------------------------------------------------------------------------------------ */
#define portCRITICAL_NESTING_IN_TCB 0
#define portSTACK_GROWTH ( -1 )
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
#define portBYTE_ALIGNMENT 16 // Xtensa Windowed ABI requires the stack pointer to always be 16-byte aligned. See "isa_rm.pdf 8.1.1 Windowed Register Usage and Stack Layout"
#define portTICK_TYPE_IS_ATOMIC 1
#define portNOP() XT_NOP()
/* ---------------------------------------------- Forward Declarations -------------------------------------------------
* - Forward declarations of all the port functions and macros need to implement the FreeRTOS porting interface
* - These must come before definition/declaration of the FreeRTOS porting interface
* ------------------------------------------------------------------------------------------------------------------ */
// --------------------- Interrupts ------------------------
/**
* @brief Checks if the current core is in an ISR context
*
* - ISR context consist of Low/Mid priority ISR, or time tick ISR
* - High priority ISRs aren't detected here, but they normally cannot call C code, so that should not be an issue anyway.
*
* @note [refactor-todo] Check if this should be inlined
* @return
* - pdTRUE if in ISR
* - pdFALSE otherwise
*/
BaseType_t xPortInIsrContext(void);
/**
* @brief Asserts if in ISR context
*
* - Asserts on xPortInIsrContext() internally
*
* @note [refactor-todo] Check if this API is still required
* @note [refactor-todo] Check if this should be inlined
*/
void vPortAssertIfInISR(void);
/**
* @brief Check if in ISR context from High priority ISRs
*
* - Called from High priority ISR
* - Checks if the previous context (before high priority interrupt) was in ISR context (meaning low/med priority)
*
* @note [refactor-todo] Check if this should be inlined
* @return
* - pdTRUE if in previous in ISR context
* - pdFALSE otherwise
*/
BaseType_t xPortInterruptedFromISRContext(void);
/**
* @brief Disable interrupts in a nested manner (meant to be called from ISRs)
*
* @warning Only applies to current CPU.
* @return UBaseType_t Previous interrupt level
*/
static inline UBaseType_t xPortSetInterruptMaskFromISR(void);
/**
* @brief Reenable interrupts in a nested manner (meant to be called from ISRs)
*
* @warning Only applies to current CPU.
* @param prev_level Previous interrupt level
*/
static inline void vPortClearInterruptMaskFromISR(UBaseType_t prev_level);
/* ---------------------- Spinlocks ------------------------
* - Modifications made to critical sections to support SMP
* - See "Critical Sections & Disabling Interrupts" in docs/api-guides/freertos-smp.rst for more details
* - Remark: For the ESP32, portENTER_CRITICAL and portENTER_CRITICAL_ISR both alias vPortEnterCritical, meaning that
* either function can be called both from ISR as well as task context. This is not standard FreeRTOS
* behavior; please keep this in mind if you need any compatibility with other FreeRTOS implementations.
* @note [refactor-todo] Check if these comments are still true
* ------------------------------------------------------ */
typedef spinlock_t portMUX_TYPE; /**< Spinlock type used by FreeRTOS critical sections */
#define portMUX_INITIALIZER_UNLOCKED SPINLOCK_INITIALIZER /**< Spinlock initializer */
#define portMUX_FREE_VAL SPINLOCK_FREE /**< Spinlock is free. [refactor-todo] check if this is still required */
#define portMUX_NO_TIMEOUT SPINLOCK_WAIT_FOREVER /**< When passed for 'timeout_cycles', spin forever if necessary. [refactor-todo] check if this is still required */
#define portMUX_TRY_LOCK SPINLOCK_NO_WAIT /**< Try to acquire the spinlock a single time only. [refactor-todo] check if this is still required */
#define portMUX_INITIALIZE(mux) spinlock_initialize(mux) /*< Initialize a spinlock to its unlocked state */
// ------------------ Critical Sections --------------------
/**
* @brief Enter a SMP critical section with a timeout
*
* This function enters an SMP critical section by disabling interrupts then
* taking a spinlock with a specified timeout.
*
* This function can be called in a nested manner.
*
* @note This function is made non-inline on purpose to reduce code size
* @param mux Spinlock
* @param timeout Timeout to wait for spinlock in number of CPU cycles.
* Use portMUX_NO_TIMEOUT to wait indefinitely
* Use portMUX_TRY_LOCK to only getting the spinlock a single time
* @retval pdPASS Critical section entered (spinlock taken)
* @retval pdFAIL If timed out waiting for spinlock (will not occur if using portMUX_NO_TIMEOUT)
*/
BaseType_t xPortEnterCriticalTimeout(portMUX_TYPE *mux, BaseType_t timeout);
/**
* @brief Enter a SMP critical section
*
* This function enters an SMP critical section by disabling interrupts then
* taking a spinlock with an unlimited timeout.
*
* This function can be called in a nested manner
*
* @param[in] mux Spinlock
*/
static inline void __attribute__((always_inline)) vPortEnterCritical(portMUX_TYPE *mux);
/**
* @brief Exit a SMP critical section
*
* This function can be called in a nested manner. On the outer most level of nesting, this function will:
*
* - Release the spinlock
* - Restore the previous interrupt level before the critical section was entered
*
* If still nesting, this function simply decrements a critical nesting count
*
* @note This function is made non-inline on purpose to reduce code size
* @param[in] mux Spinlock
*/
void vPortExitCritical(portMUX_TYPE *mux);
/**
* @brief FreeRTOS Compliant version of xPortEnterCriticalTimeout()
*
* Compliant version of xPortEnterCriticalTimeout() will ensure that this is
* called from a task context only. An abort is called otherwise.
*
* @note This function is made non-inline on purpose to reduce code size
*
* @param mux Spinlock
* @param timeout Timeout
* @return BaseType_t
*/
BaseType_t xPortEnterCriticalTimeoutCompliance(portMUX_TYPE *mux, BaseType_t timeout);
/**
* @brief FreeRTOS compliant version of vPortEnterCritical()
*
* Compliant version of vPortEnterCritical() will ensure that this is
* called from a task context only. An abort is called otherwise.
*
* @param[in] mux Spinlock
*/
static inline void __attribute__((always_inline)) vPortEnterCriticalCompliance(portMUX_TYPE *mux);
/**
* @brief FreeRTOS compliant version of vPortExitCritical()
*
* Compliant version of vPortExitCritical() will ensure that this is
* called from a task context only. An abort is called otherwise.
*
* @note This function is made non-inline on purpose to reduce code size
* @param[in] mux Spinlock
*/
void vPortExitCriticalCompliance(portMUX_TYPE *mux);
/**
* @brief Safe version of enter critical timeout
*
* Safe version of enter critical will automatically select between
* portTRY_ENTER_CRITICAL() and portTRY_ENTER_CRITICAL_ISR()
*
* @param mux Spinlock
* @param timeout Timeout
* @return BaseType_t
*/
static inline BaseType_t __attribute__((always_inline)) xPortEnterCriticalTimeoutSafe(portMUX_TYPE *mux, BaseType_t timeout);
/**
* @brief Safe version of enter critical
*
* Safe version of enter critical will automatically select between
* portENTER_CRITICAL() and portENTER_CRITICAL_ISR()
*
* @param[in] mux Spinlock
*/
static inline void __attribute__((always_inline)) vPortEnterCriticalSafe(portMUX_TYPE *mux);
/**
* @brief Safe version of exit critical
*
* Safe version of enter critical will automatically select between
* portEXIT_CRITICAL() and portEXIT_CRITICAL_ISR()
*
* @param[in] mux Spinlock
*/
static inline void __attribute__((always_inline)) vPortExitCriticalSafe(portMUX_TYPE *mux);
// ---------------------- Yielding -------------------------
/**
* @brief Perform a solicited context switch
*
* - Defined in portasm.S
*
* @note [refactor-todo] The rest of ESP-IDF should call taskYield() instead
*/
void vPortYield( void );
/**
* @brief Yields the other core
*
* - Send an interrupt to another core in order to make the task running on it yield for a higher-priority task.
* - Can be used to yield current core as well
*
* @note [refactor-todo] Put this into private macros as its only called from task.c and is not public API
* @param coreid ID of core to yield
*/
void vPortYieldOtherCore(BaseType_t coreid);
/**
* @brief Checks if the current core can yield
*
* - A core cannot yield if its in an ISR or in a critical section
*
* @note [refactor-todo] See if this can be separated from port macro
* @return true Core can yield
* @return false Core cannot yield
*/
FORCE_INLINE_ATTR bool xPortCanYield(void);
// ------------------- Hook Functions ----------------------
/**
* @brief Hook function called on entry to tickless idle
*
* - Implemented in pm_impl.c
*
* @param xExpectedIdleTime Expected idle time
*/
void vApplicationSleep(TickType_t xExpectedIdleTime);
// ----------------------- System --------------------------
/**
* @brief Get the tick rate per second
*
* @note [refactor-todo] make this inline
* @return uint32_t Tick rate in Hz
*/
uint32_t xPortGetTickRateHz(void);
/**
* @brief Set a watchpoint to watch the last 32 bytes of the stack
*
* Callback to set a watchpoint on the end of the stack. Called every context switch to change the stack watchpoint
* around.
*
* @param pxStackStart Pointer to the start of the stack
*/
void vPortSetStackWatchpoint( void *pxStackStart );
/**
* @brief Get the current core's ID
*
* @note [refactor-todo] IDF should call a FreeRTOS like macro instead of port function directly
* @return BaseType_t Core ID
*/
FORCE_INLINE_ATTR BaseType_t xPortGetCoreID(void);
// --------------------- TCB Cleanup -----------------------
/**
* @brief TCB cleanup hook
*
* The portCLEAN_UP_TCB() macro is called in prvDeleteTCB() right before a
* deleted task's memory is freed. We map that macro to this internal function
* so that IDF FreeRTOS ports can inject some task pre-deletion operations.
*
* @note We can't use vPortCleanUpTCB() due to API compatibility issues. See
* CONFIG_FREERTOS_ENABLE_STATIC_TASK_CLEAN_UP. Todo: IDF-8097
*/
void vPortTCBPreDeleteHook( void *pxTCB );
/* ------------------------------------------- FreeRTOS Porting Interface ----------------------------------------------
* - Contains all the mappings of the macros required by FreeRTOS
* - Most come after forward declare as porting macros map to declared functions
* - Maps to forward declared functions
* ------------------------------------------------------------------------------------------------------------------ */
// --------------------- Interrupts ------------------------
/**
* - Only applies to current core
* - These cannot be nested. They should be used with a lot of care and cannot be called from interrupt level.
*
* @note [refactor-todo] replace XTOS_SET_INTLEVEL with more efficient version, if any?
*/
#define portDISABLE_INTERRUPTS() do { XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL); portbenchmarkINTERRUPT_DISABLE(); } while (0)
#define portENABLE_INTERRUPTS() do { portbenchmarkINTERRUPT_RESTORE(0); XTOS_SET_INTLEVEL(0); } while (0)
/**
* ISR versions to enable/disable interrupts
*/
#define portSET_INTERRUPT_MASK_FROM_ISR() xPortSetInterruptMaskFromISR()
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(prev_level) vPortClearInterruptMaskFromISR(prev_level)
#define portASSERT_IF_IN_ISR() vPortAssertIfInISR()
/**
* @brief Used by FreeRTOS functions to call the correct version of critical section API
*/
#if ( configNUM_CORES > 1 )
#define portCHECK_IF_IN_ISR() xPortInIsrContext()
#endif
// ------------------ Critical Sections --------------------
/**
* @brief FreeRTOS critical section macros
*
* - Added a spinlock argument for SMP
* - Can be nested
* - Compliance versions will assert if regular critical section API is used in ISR context
* - Safe versions can be called from either contexts
*/
#ifdef CONFIG_FREERTOS_CHECK_PORT_CRITICAL_COMPLIANCE
#define portTRY_ENTER_CRITICAL(mux, timeout) xPortEnterCriticalTimeoutCompliance(mux, timeout)
#define portENTER_CRITICAL(mux) vPortEnterCriticalCompliance(mux)
#define portEXIT_CRITICAL(mux) vPortExitCriticalCompliance(mux)
#else
#define portTRY_ENTER_CRITICAL(mux, timeout) xPortEnterCriticalTimeout(mux, timeout)
#define portENTER_CRITICAL(mux) vPortEnterCritical(mux)
#define portEXIT_CRITICAL(mux) vPortExitCritical(mux)
#endif /* CONFIG_FREERTOS_CHECK_PORT_CRITICAL_COMPLIANCE */
#define portTRY_ENTER_CRITICAL_ISR(mux, timeout) xPortEnterCriticalTimeout(mux, timeout)
#define portENTER_CRITICAL_ISR(mux) vPortEnterCritical(mux)
#define portEXIT_CRITICAL_ISR(mux) vPortExitCritical(mux)
#define portTRY_ENTER_CRITICAL_SAFE(mux, timeout) xPortEnterCriticalTimeoutSafe(mux)
#define portENTER_CRITICAL_SAFE(mux) vPortEnterCriticalSafe(mux)
#define portEXIT_CRITICAL_SAFE(mux) vPortExitCriticalSafe(mux)
// ---------------------- Yielding -------------------------
#define portYIELD() vPortYield()
extern void _frxt_setup_switch( void ); //Defined in portasm.S
#define portYIELD_FROM_ISR_NO_ARG() ({ \
traceISR_EXIT_TO_SCHEDULER(); \
_frxt_setup_switch(); \
})
#define portYIELD_FROM_ISR_ARG(xHigherPriorityTaskWoken) ({ \
if (xHigherPriorityTaskWoken == pdTRUE) { \
traceISR_EXIT_TO_SCHEDULER(); \
_frxt_setup_switch(); \
} \
})
/**
* @note The macro below could be used when passing a single argument, or without any argument,
* it was developed to support both usages of portYIELD inside of an ISR. Any other usage form
* might result in undesired behavior
*/
#if defined(__cplusplus) && (__cplusplus > 201703L)
#define portYIELD_FROM_ISR(...) CHOOSE_MACRO_VA_ARG(portYIELD_FROM_ISR_ARG, portYIELD_FROM_ISR_NO_ARG __VA_OPT__(,) __VA_ARGS__)(__VA_ARGS__)
#else
#define portYIELD_FROM_ISR(...) CHOOSE_MACRO_VA_ARG(portYIELD_FROM_ISR_ARG, portYIELD_FROM_ISR_NO_ARG, ##__VA_ARGS__)(__VA_ARGS__)
#endif
/* Yielding within an API call (when interrupts are off), means the yield should be delayed
until interrupts are re-enabled.
To do this, we use the "cross-core" interrupt as a trigger to yield on this core when interrupts are re-enabled.This
is the same interrupt & code path which is used to trigger a yield between CPUs, although in this case the yield is
happening on the same CPU.
*/
#define portYIELD_WITHIN_API() esp_crosscore_int_send_yield(xPortGetCoreID())
// ------------------- Hook Functions ----------------------
#define portSUPPRESS_TICKS_AND_SLEEP(idleTime) vApplicationSleep(idleTime)
// ------------------- Run Time Stats ----------------------
#define portCONFIGURE_TIMER_FOR_RUN_TIME_STATS()
/**
* - Fine resolution uses ccount
* - ALT is coarse and uses esp_timer
* @note [refactor-todo] Make fine and alt timers mutually exclusive
*/
#define portGET_RUN_TIME_COUNTER_VALUE() xthal_get_ccount()
#ifdef CONFIG_FREERTOS_RUN_TIME_STATS_USING_ESP_TIMER
#define portALT_GET_RUN_TIME_COUNTER_VALUE(x) do {x = (uint32_t)esp_timer_get_time();} while(0)
#endif
// --------------------- TCB Cleanup -----------------------
#define portCLEAN_UP_TCB( pxTCB ) vPortTCBPreDeleteHook( pxTCB )
// -------------- Optimized Task Selection -----------------
#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1
/* Check the configuration. */
#if( configMAX_PRIORITIES > 32 )
#error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32. It is very rare that a system requires more than 10 to 15 different priorities as tasks that share a priority will time slice.
#endif
/* Store/clear the ready priorities in a bit map. */
#define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
#define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )
#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - __builtin_clz( ( uxReadyPriorities ) ) )
#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
/* --------------------------------------------- Inline Implementations ------------------------------------------------
* - Implementation of inline functions of the forward declares
* - Should come after forward declare and FreeRTOS Porting interface, as implementation may use both.
* - For implementation of non-inlined functions, see port.c
* ------------------------------------------------------------------------------------------------------------------ */
// --------------------- Interrupts ------------------------
static inline UBaseType_t __attribute__((always_inline)) xPortSetInterruptMaskFromISR(void)
{
UBaseType_t prev_int_level = XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL);
portbenchmarkINTERRUPT_DISABLE();
return prev_int_level;
}
static inline void __attribute__((always_inline)) vPortClearInterruptMaskFromISR(UBaseType_t prev_level)
{
portbenchmarkINTERRUPT_RESTORE(prev_level);
XTOS_RESTORE_JUST_INTLEVEL((int) prev_level);
}
// ------------------ Critical Sections --------------------
static inline void __attribute__((always_inline)) vPortEnterCritical(portMUX_TYPE *mux)
{
xPortEnterCriticalTimeout(mux, portMUX_NO_TIMEOUT);
}
static inline void __attribute__((always_inline)) vPortEnterCriticalCompliance(portMUX_TYPE *mux)
{
xPortEnterCriticalTimeoutCompliance(mux, portMUX_NO_TIMEOUT);
}
static inline BaseType_t __attribute__((always_inline)) xPortEnterCriticalTimeoutSafe(portMUX_TYPE *mux, BaseType_t timeout)
{
BaseType_t ret;
if (xPortInIsrContext()) {
ret = portTRY_ENTER_CRITICAL_ISR(mux, timeout);
} else {
ret = portTRY_ENTER_CRITICAL(mux, timeout);
}
return ret;
}
static inline void __attribute__((always_inline)) vPortEnterCriticalSafe(portMUX_TYPE *mux)
{
xPortEnterCriticalTimeoutSafe(mux, portMUX_NO_TIMEOUT);
}
static inline void __attribute__((always_inline)) vPortExitCriticalSafe(portMUX_TYPE *mux)
{
if (xPortInIsrContext()) {
portEXIT_CRITICAL_ISR(mux);
} else {
portEXIT_CRITICAL(mux);
}
}
// ---------------------- Yielding -------------------------
FORCE_INLINE_ATTR bool xPortCanYield(void)
{
uint32_t ps_reg = 0;
//Get the current value of PS (processor status) register
RSR(PS, ps_reg);
/*
* intlevel = (ps_reg & 0xf);
* excm = (ps_reg >> 4) & 0x1;
* CINTLEVEL is max(excm * EXCMLEVEL, INTLEVEL), where EXCMLEVEL is 3.
* However, just return true, only intlevel is zero.
*/
return ((ps_reg & PS_INTLEVEL_MASK) == 0);
}
// ----------------------- System --------------------------
FORCE_INLINE_ATTR BaseType_t xPortGetCoreID(void)
{
return (BaseType_t) esp_cpu_get_core_id();
}
/* ------------------------------------------------------ Misc ---------------------------------------------------------
* - Miscellaneous porting macros
* - These are not part of the FreeRTOS porting interface, but are used by other FreeRTOS dependent components
* ------------------------------------------------------------------------------------------------------------------ */
// -------------------- Co-Processor -----------------------
#if XCHAL_CP_NUM > 0
void vPortCleanUpCoprocArea(void *pvTCB);
#define portCLEAN_UP_COPROC(pvTCB) vPortCleanUpCoprocArea(pvTCB)
#endif
// -------------------- Heap Related -----------------------
/**
* @brief Checks if a given piece of memory can be used to store a task's TCB
*
* - Defined in heap_idf.c
*
* @param ptr Pointer to memory
* @return true Memory can be used to store a TCB
* @return false Otherwise
*/
bool xPortCheckValidTCBMem(const void *ptr);
/**
* @brief Checks if a given piece of memory can be used to store a task's stack
*
* - Defined in heap_idf.c
*
* @param ptr Pointer to memory
* @return true Memory can be used to store a task stack
* @return false Otherwise
*/
bool xPortcheckValidStackMem(const void *ptr);
#define portVALID_TCB_MEM(ptr) xPortCheckValidTCBMem(ptr)
#define portVALID_STACK_MEM(ptr) xPortcheckValidStackMem(ptr)
// --------------------- App-Trace -------------------------
#if CONFIG_APPTRACE_SV_ENABLE
extern volatile uint32_t port_switch_flag[portNUM_PROCESSORS];
#define os_task_switch_is_pended(_cpu_) (port_switch_flag[_cpu_])
#else
#define os_task_switch_is_pended(_cpu_) (false)
#endif
#ifdef __cplusplus
}
#endif
#endif // __ASSEMBLER__
#endif /* PORTMACRO_H */