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// Copyright (C) 2017-2023 Selene ToyKeeper
// 2021-2024 loneoceans
// SPDX-License-Identifier: GPL-3.0-or-later
//***********************************************
//** HELPER FUNCTIONS FOR LUME-X1-AVR32DD20 **
//***********************************************
#pragma once
#include "fsm/chan-rgbaux.c"
// Declare variables and functions to support UDR multiple power paths
uint8_t is_boost_currently_on = 0; // for turn-on delay during first turn on
void set_level_zero();
void set_level_udr(uint8_t level);
bool gradual_tick_main(uint8_t gt);
void set_power_path(uint8_t ramp_level);
Channel channels[] = {
{ // main LEDs
.set_level = set_level_udr,
.gradual_tick = gradual_tick_main
},
RGB_AUX_CHANNELS
};
// turn off
void set_level_zero() {
DAC_LVL = 0; // set DAC to 0
DAC_VREF = V10; // set DAC Vref to lowest
// turn off DC/DC converter and amplifier
BST_ENABLE_PORT &= ~(1 << BST_ENABLE_PIN);
is_boost_currently_on = 0;
// turn off all UDR paths
LED_PATH1_PORT &= ~LED_PATH1_PIN;
LED_PATH2_PORT &= ~LED_PATH2_PIN;
LED_PATH3_PORT &= ~LED_PATH3_PIN;
}
// UDR for set_level, which sets the led brightness based on ramp tables.
// single set of LED(s), fully regulated boost at all levels
void set_level_udr(uint8_t level) {
if (level == actual_level - 1) return; // no-op
// get the ramp data
PWM1_DATATYPE dac_lvl = PWM1_GET(level) << 6; // dac register is left-aligned
PWM2_DATATYPE dac_vref = PWM2_GET(level);
if(is_boost_currently_on != 1){
// boost is not on, enable buck and add boot-up delay
is_boost_currently_on = 1;
BST_ENABLE_PORT |= (1 << BST_ENABLE_PIN); // turn on buck and amplifier
delay_4ms(BST_ON_DELAY/4); // boot-up delay
}
// set the DAC
DAC_LVL = dac_lvl;
DAC_VREF = dac_vref;
// set the power paths
set_power_path(level);
}
// handles dynamic Vref used in the ramp tables
bool gradual_tick_main(uint8_t gt) {
// TODO overall smoothness can be improved due to gt using linear
// adjustments, but ramp table is non-linear.
// if Vref is the same, make gradual adjustments.
// else, jump to the next ramp level and use set_level() to handle power paths.
PWM2_DATATYPE vref_next = PWM2_GET(gt); // DAC ramp table Vref
// if different vref level, make a ramp level adjustment..
if (vref_next != DAC_VREF) return true; // use set_level() to handle normally
// .. else, same vref, adjust level gradually.
PWM1_DATATYPE dac_next = PWM1_GET(gt); // DAC ramp table data
PWM1_DATATYPE dac_curr = DAC_LVL >> 6; // register is left-aligned
GRADUAL_ADJUST_SIMPLE(dac_next, dac_curr);
DAC_LVL = dac_curr << 6;
if (dac_next == dac_curr) return true; // done
return false;
}
// handles dynamic power pathways based on threshold levels
void set_power_path(uint8_t ramp_level){
ramp_level ++; // convert to 1-based indexing
if (ramp_level >= LED_PATH3_PIN_LEVEL_MIN) {
// high mode
LED_PATH1_PORT |= LED_PATH1_PIN;
LED_PATH2_PORT |= LED_PATH2_PIN;
LED_PATH3_PORT |= LED_PATH3_PIN;
}
else if (ramp_level >= LED_PATH2_PIN_LEVEL_MIN) {
// low mode
LED_PATH1_PORT |= LED_PATH1_PIN;
LED_PATH2_PORT |= LED_PATH2_PIN;
LED_PATH3_PORT &= ~LED_PATH3_PIN;
}
else if (ramp_level >= LED_PATH1_PIN_LEVEL_MIN) {
// firefly mode
LED_PATH1_PORT |= LED_PATH1_PIN;
LED_PATH2_PORT &= ~LED_PATH2_PIN;
LED_PATH3_PORT &= ~LED_PATH3_PIN;
}
}
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