42e843b463
* Remove version from artifact name * Target C++ 20 and higher * Use cpp string * Better crash implementation * String utils in cpp style * Replace parameter methods with start() method * MutexType to Mutex::Type * Kernel c to cpp style * Cleanup event flag * More cpp conversions * Test fixes * Updated ideas docs
126 lines
3.2 KiB
C++
126 lines
3.2 KiB
C++
#pragma once
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#include "CoreTypes.h"
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#ifdef ESP_PLATFORM
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#include "freertos/FreeRTOS.h"
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#else
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#include "FreeRTOS.h"
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#endif
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namespace tt::kernel {
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typedef enum {
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PlatformEsp,
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PlatformSimulator
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} Platform;
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/** Check if CPU is in IRQ or kernel running and IRQ is masked
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*
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* Originally this primitive was born as a workaround for FreeRTOS kernel primitives shenanigans with PRIMASK.
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*
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* Meaningful use cases are:
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*
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* - When kernel is started and you want to ensure that you are not in IRQ or IRQ is not masked(like in critical section)
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* - When kernel is not started and you want to make sure that you are not in IRQ mode, ignoring PRIMASK.
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*
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* As you can see there will be edge case when kernel is not started and PRIMASK is not 0 that may cause some funky behavior.
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* Most likely it will happen after kernel primitives being used, but control not yet passed to kernel.
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* It's up to you to figure out if it is safe for your code or not.
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*
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* @return true if CPU is in IRQ or kernel running and IRQ is masked
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*/
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bool isIrq();
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/** Check if kernel is running
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*
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* @return true if running, false otherwise
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*/
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bool isRunning();
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/** Lock kernel, pause process scheduling
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*
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* @warning This should never be called in interrupt request context.
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*
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* @return previous lock state(0 - unlocked, 1 - locked)
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*/
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int32_t lock();
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/** Unlock kernel, resume process scheduling
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*
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* @warning This should never be called in interrupt request context.
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*
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* @return previous lock state(0 - unlocked, 1 - locked)
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*/
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int32_t unlock();
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/** Restore kernel lock state
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*
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* @warning This should never be called in interrupt request context.
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*
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* @param[in] lock The lock state
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*
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* @return new lock state or error
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*/
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int32_t restoreLock(int32_t lock);
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/** Get kernel systick frequency
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*
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* @return systick counts per second
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*/
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uint32_t getTickFrequency();
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TickType_t getTicks();
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/** Delay execution
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*
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* @warning This should never be called in interrupt request context.
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*
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* Also keep in mind delay is aliased to scheduler timer intervals.
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*
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* @param[in] ticks The ticks count to pause
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*/
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void delayTicks(TickType_t ticks);
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/** Delay until tick
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*
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* @warning This should never be called in interrupt request context.
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*
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* @param[in] ticks The tick until which kerel should delay task execution
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*
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* @return The status.
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*/
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TtStatus delayUntilTick(uint32_t tick);
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/** Convert milliseconds to ticks
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*
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* @param[in] milliSeconds time in milliseconds
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* @return time in ticks
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*/
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TickType_t millisToTicks(uint32_t milliSeconds);
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/** Delay in milliseconds
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*
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* This method uses kernel ticks on the inside, which causes delay to be aliased to scheduler timer intervals.
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* Real wait time will be between X+ milliseconds.
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* Special value: 0, will cause task yield.
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* Also if used when kernel is not running will fall back to `tt_delay_us`.
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*
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* @warning Cannot be used from ISR
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*
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* @param[in] milliSeconds milliseconds to wait
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*/
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void delayMillis(uint32_t milliSeconds);
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/** Delay in microseconds
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*
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* Implemented using Cortex DWT counter. Blocking and non aliased.
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*
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* @param[in] microSeconds microseconds to wait
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*/
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void delayMicros(uint32_t microSeconds);
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Platform getPlatform();
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} // namespace
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