Clocks.h

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/****
 * Sming Framework Project - Open Source framework for high efficiency native ESP8266 development.
 * Created 2015 by Skurydin Alexey
 * http://github.com/SmingHub/Sming
 * All files of the Sming Core are provided under the LGPL v3 license.
 *
 * Clocks.h
 *
 * @author mikee47 <mike@sillyhouse.net>
 *
 ****/
 
#pragma once
 
#include <NanoTime.h>
#include <driver/hw_timer.h>
#include <esp_clk.h>
#include "System.h"
 
template <hw_timer_clkdiv_t clkdiv>
struct Timer1Clock
    : public NanoTime::Clock<Timer1Clock<clkdiv>, HW_TIMER_BASE_CLK / (1 << clkdiv), uint32_t, MAX_HW_TIMER1_INTERVAL> {
    static constexpr uint32_t prescale()
    {
        return 1 << clkdiv;
    }
 
    static constexpr const char* typeName()
    {
        return "Timer1Clock";
    }
 
    /*
     * As Timer1 is a down-counter, when active this will indicate remaining ticks until the next interrupt.
     */
    static uint32_t __forceinline ticks()
    {
        return hw_timer1_read();
    }
};
 
struct Timer2Clock : public NanoTime::Clock<Timer2Clock, HW_TIMER2_CLK, uint32_t, 0xFFFFFFFFU> {
    static constexpr const char* typeName()
    {
        return "Timer2Clock";
    }
 
    static uint32_t __forceinline ticks()
    {
        return hw_timer2_read();
    }
};
 
template <CpuFrequency cpuFreq>
struct CpuCycleClock
    : public NanoTime::Clock<CpuCycleClock<cpuFreq>, uint32_t(cpuFreq) * 1000000, uint32_t, 0xFFFFFFFF> {
    static constexpr const char* typeName()
    {
        return "CpuCycleClock";
    }
 
    static uint32_t __forceinline ticks()
    {
        return esp_get_ccount();
    }
 
    static constexpr CpuFrequency cpuFrequency()
    {
        return cpuFreq;
    }
};
 
#include_next <Platform/Clocks.h>