1 files changed, 116 insertions, 0 deletions
diff --git a/hw/hank/lume-x1/hwdef.c b/hw/hank/lume-x1/hwdef.c
new file mode 100644
index 0000000..3fe32f3
--- /dev/null
+++ b/hw/hank/lume-x1/hwdef.c
@@ -0,0 +1,116 @@
+// 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;
+    }
+}
+