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// BLF LT1S Pro hwdef functions
// Copyright (C) 2023 Selene ToyKeeper
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
// "auto tint" channel mode
void set_level_auto_3ch_blend(uint8_t level) {
BLEND_PWM_DATATYPE vpwm;
if (level == 0) {
vpwm = 0;
} else {
level --; // PWM array index = level - 1
vpwm = PWM_GET(blend_pwm_levels, level);
}
// tint goes from 0 (red) to 127 (warm white) to 255 (cool white)
uint8_t mytint;
mytint = 255 * (uint16_t)level / RAMP_SIZE;
BLEND_PWM_DATATYPE a, b, c;
// red is high at 0, low at 255
a = (((PWM_DATATYPE2)(255 - mytint)
* (PWM_DATATYPE2)vpwm) + 127) / 255;
// warm white is low at 0 and 255, high at 127
b = (((PWM_DATATYPE2)triangle_wave(mytint)
* (PWM_DATATYPE2)vpwm) + 127) / 255;
// cool white is low at 0, high at 255
c = (((PWM_DATATYPE2)mytint
* (PWM_DATATYPE2)vpwm) + 127) / 255;
RED_PWM_LVL = a;
WARM_PWM_LVL = b;
COOL_PWM_LVL = c;
}
// "white + red" channel mode
void set_level_red_white_blend(uint8_t level) {
// set the warm+cool white LEDs first
channel_mode = CM_WHITE;
set_level_2ch_blend(level);
channel_mode = CM_WHITE_RED;
BLEND_PWM_DATATYPE vpwm;
// set the red LED as a ratio of the white output level
if (level == 0) {
vpwm = 0;
} else {
level --; // PWM array index = level - 1
vpwm = PWM_GET(blend_pwm_levels, level);
}
// 0 = no red
// 255 = red at 100% of white channel PWM
uint8_t ratio = channel_mode_args[channel_mode];
PWM_DATATYPE red_pwm;
red_pwm = (((PWM_DATATYPE2)ratio * (PWM_DATATYPE2)vpwm) + 127) / 255;
RED_PWM_LVL = red_pwm;
}
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