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only:more timer API

This commit is contained in:
Andrey 2023-06-15 17:30:55 -04:00
parent 8ca5db6413
commit a63265bffb
2 changed files with 11 additions and 2 deletions
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7
firmware/util/timer.cpp
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@ -51,7 +51,7 @@ float Timer::getElapsedUs() const {
return getElapsedUs(getTimeNowNt()); return getElapsedUs(getTimeNowNt());
} }
float Timer::getElapsedUs(efitick_t nowNt) const { uint32_t Timer::getElapsedNt(efitick_t nowNt) const {
auto deltaNt = nowNt - m_lastReset; auto deltaNt = nowNt - m_lastReset;
// Yes, things can happen slightly in the future if we get a lucky interrupt between // Yes, things can happen slightly in the future if we get a lucky interrupt between
@ -64,8 +64,11 @@ float Timer::getElapsedUs(efitick_t nowNt) const {
if (deltaNt > UINT32_MAX - 1) { if (deltaNt > UINT32_MAX - 1) {
deltaNt = UINT32_MAX - 1; deltaNt = UINT32_MAX - 1;
} }
return deltaNt;
}
auto delta32 = (uint32_t)deltaNt; float Timer::getElapsedUs(efitick_t nowNt) const {
auto delta32 = getElapsedNt(nowNt);
return NT2US(delta32); return NT2US(delta32);
} }

6
firmware/util/timer.h
View File

@ -32,11 +32,17 @@ public:
float getElapsedUs() const; float getElapsedUs() const;
// WOW yes returns US while parameter is NT // WOW yes returns US while parameter is NT
float getElapsedUs(efitick_t nowNt) const; float getElapsedUs(efitick_t nowNt) const;
// too many options for the API probably?
uint32_t getElapsedNt(efitick_t nowNt) const;
// Perform an atomic update event based on the passed timestamp, // Perform an atomic update event based on the passed timestamp,
// returning the delta between the last reset and the provided timestamp // returning the delta between the last reset and the provided timestamp
float getElapsedSecondsAndReset(efitick_t nowNt); float getElapsedSecondsAndReset(efitick_t nowNt);
efitick_t get() {
return m_lastReset;
}
private: private:
// Use not-quite-minimum value to avoid overflow // Use not-quite-minimum value to avoid overflow
efitick_t m_lastReset; efitick_t m_lastReset;