hwdef-noctigon-dm11-boost.c


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// Noctigon DM11 (boost driver) PWM helper functions
// Copyright (C) 2023 Selene ToyKeeper
// SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include "chan-rgbaux.c"

// single set of LEDs with single power channel, boost
void set_level_main(uint8_t level) {
    if (level == 0) {
        CH1_PWM = 0;
        PWM_CNT = 0;  // reset phase
        LED_ENABLE_PORT  &= ~(1 << LED_ENABLE_PIN );  // disable opamp
        LED_ENABLE_PORT2 &= ~(1 << LED_ENABLE_PIN2);  // disable PMIC
        return;
    }

    LED_ENABLE_PORT  |= (1 << LED_ENABLE_PIN );  // enable opamp
    LED_ENABLE_PORT2 |= (1 << LED_ENABLE_PIN2);  // enable PMIC

    level --;  // PWM array index = level - 1
    PWM_DATATYPE ch1_pwm = PWM_GET(pwm1_levels, level);
    // pulse frequency modulation, a.k.a. dynamic PWM
    uint16_t top = PWM_GET16(pwm_tops, level);

    CH1_PWM = ch1_pwm;
    // wait to sync the counter and avoid flashes
    while(actual_level && (PWM_CNT > (top - 32))) {}
    PWM_TOP = top;
    // force reset phase when turning on from zero
    // (because otherwise the initial response is inconsistent)
    if (! actual_level) PWM_CNT = 0;
}

bool gradual_tick_main(uint8_t gt) {
    PWM_DATATYPE pwm1 = PWM_GET(pwm1_levels, gt);

    GRADUAL_ADJUST_SIMPLE(pwm1, CH1_PWM);

    if (   (pwm1 == CH1_PWM)
       ) {
        return true;  // done
    }
    return false;  // not done yet
}