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// Emisar D4v2 PWM helper functions
// Copyright (C) 2017-2023 Selene ToyKeeper
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include "chan-rgbaux.c"
// single set of LEDs with 2 stacked power channels, DDFET+1 or DDFET+linear
void set_level_stacked(uint8_t level) {
if (level == 0) {
LOW_PWM_LVL = 0;
HIGH_PWM_LVL = 0;
PWM_CNT = 0; // reset phase
} else {
level --; // PWM array index = level - 1
LOW_PWM_LVL = PWM_GET(pwm1_levels, level);
HIGH_PWM_LVL = PWM_GET(pwm2_levels, level);
// pulse frequency modulation, a.k.a. dynamic PWM
uint16_t top = PWM_GET(pwm_tops, level);
// 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_stacked(uint8_t gt) {
GRADUAL_TICK_SETUP();
GRADUAL_ADJUST(pwm1_levels, LOW_PWM_LVL, PWM_TOP_INIT);
GRADUAL_ADJUST_1CH(pwm2_levels, HIGH_PWM_LVL);
// did we go far enough to hit the next defined ramp level?
// if so, update the main ramp level tracking var
if ( (LOW_PWM_LVL == PWM_GET(pwm1_levels, gt))
&& (HIGH_PWM_LVL == PWM_GET(pwm2_levels, gt))
) {
return true;
}
return false;
}
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