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// Emisar D4v2 PWM helper functions
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// Copyright (C) 2017-2023 Selene ToyKeeper
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// SPDX-License-Identifier: GPL-3.0-or-later
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#include "chan-rgbaux.c"
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void set_level_main(uint8_t level);
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bool gradual_tick_main(uint8_t gt);
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Channel channels[] = {
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.set_level = set_level_main,
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.gradual_tick = gradual_tick_main
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void set_level_zero() {
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PWM_CNT = 0; // reset phase
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// single set of LEDs with 2 stacked power channels, DDFET+1 or DDFET+linear
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void set_level_main(uint8_t level) {
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PWM_DATATYPE ch1_pwm = PWM_GET(pwm1_levels, level);
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PWM_DATATYPE ch2_pwm = PWM_GET(pwm2_levels, level);
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// pulse frequency modulation, a.k.a. dynamic PWM
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uint16_t top = PWM_GET16(pwm_tops, level);
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// wait to sync the counter and avoid flashes
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while(actual_level && (PWM_CNT > (top - 32))) {}
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// force reset phase when turning on from zero
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// (because otherwise the initial response is inconsistent)
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if (! actual_level) PWM_CNT = 0;
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bool gradual_tick_main(uint8_t gt) {
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PWM_DATATYPE pwm1 = PWM_GET(pwm1_levels, gt);
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PWM_DATATYPE pwm2 = PWM_GET(pwm2_levels, gt);
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GRADUAL_ADJUST_STACKED(pwm1, CH1_PWM, PWM_TOP_INIT);
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GRADUAL_ADJUST_SIMPLE (pwm2, CH2_PWM);
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if ( (pwm1 == CH1_PWM)
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return false; // not done yet