From 882567cd08e15d73aee0802fd1b1c31076801a02 Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Sat, 29 Apr 2023 02:50:03 -0600
Subject: converted KR4-nofet build

---
 hwdef-noctigon-kr4-nofet.c                         | 47 ++++++++++++++++++++++
 hwdef-noctigon-kr4.h                               |  6 +--
 spaghetti-monster/anduril/cfg-noctigon-kr4-nofet.h |  8 ++--
 3 files changed, 52 insertions(+), 9 deletions(-)
 create mode 100644 hwdef-noctigon-kr4-nofet.c

diff --git a/hwdef-noctigon-kr4-nofet.c b/hwdef-noctigon-kr4-nofet.c
new file mode 100644
index 0000000..ec984df
--- /dev/null
+++ b/hwdef-noctigon-kr4-nofet.c
@@ -0,0 +1,47 @@
+// Noctigon KR4 (no DD FET) PWM helper functions
+// Copyright (C) 2020-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "chan-rgbaux.c"
+
+// single set of LEDs with linear power channel
+void set_level_main(uint8_t level) {
+    if (level == 0) {
+        CH1_PWM = 0;
+        CH2_PWM = 0;
+        PWM_CNT = 0;  // reset phase
+        CH1_ENABLE_PORT &= ~(1 << CH1_ENABLE_PIN);  // disable opamp
+        return;
+    }
+
+    CH1_ENABLE_PORT |= (1 << CH1_ENABLE_PIN);  // enable opamp
+
+    level --;  // PWM array index = level - 1
+    PWM_DATATYPE ch1_pwm = PWM_GET(pwm1_levels, level);
+    // pulse frequency modulation, a.k.a. dynamic PWM
+    uint16_t top = PWM_GET16(pwm_tops, level);
+
+    CH1_PWM = ch1_pwm;
+    CH2_PWM = 0;
+    // 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_main(uint8_t gt) {
+    PWM_DATATYPE pwm1 = PWM_GET(pwm1_levels, gt);
+
+    GRADUAL_ADJUST_SIMPLE(pwm1, CH1_PWM);
+
+    if (   (pwm1 == CH1_PWM)
+       ) {
+        return true;  // done
+    }
+    return false;  // not done yet
+}
+
diff --git a/hwdef-noctigon-kr4.h b/hwdef-noctigon-kr4.h
index b20effc..d6c33ff 100644
--- a/hwdef-noctigon-kr4.h
+++ b/hwdef-noctigon-kr4.h
@@ -37,7 +37,9 @@
 #define ATTINY 1634
 #include <avr/io.h>
 
+#ifndef HWDEF_C_FILE
 #define HWDEF_C_FILE hwdef-noctigon-kr4.c
+#endif
 
 // allow using aux LEDs as extra channel modes
 #include "chan-rgbaux.h"
@@ -92,10 +94,6 @@
 #define CH1_PWM  OCR1A          // OCR1A is the output compare register for PB3
 #define CH1_ENABLE_PIN   PB0    // pin 19, Opamp power
 #define CH1_ENABLE_PORT  PORTB  // control port for PB0
-// TODO: remove these
-#define PWM1_PHASE_RESET_OFF    // force reset while shutting off
-#define PWM1_PHASE_RESET_ON     // force reset while turning on
-#define PWM1_PHASE_SYNC         // manual sync while changing level
 
 // DD FET channel
 #define CH2_PIN  PA6            // pin 1, DD FET PWM
diff --git a/spaghetti-monster/anduril/cfg-noctigon-kr4-nofet.h b/spaghetti-monster/anduril/cfg-noctigon-kr4-nofet.h
index 701d93f..6d49a8b 100644
--- a/spaghetti-monster/anduril/cfg-noctigon-kr4-nofet.h
+++ b/spaghetti-monster/anduril/cfg-noctigon-kr4-nofet.h
@@ -1,10 +1,11 @@
-// Noctigon KR4 (fetless) config options for Anduril
+// Noctigon KR4 (no DD FET) config options for Anduril
 // Copyright (C) 2020-2023 Selene ToyKeeper
 // SPDX-License-Identifier: GPL-3.0-or-later
 #pragma once
 
 // (and Noctigon KR1)
 // (and Emisar D4v2 E21A, a.k.a. "D4v2.5")
+#define HWDEF_C_FILE hwdef-noctigon-kr4-nofet.c
 #include "cfg-noctigon-kr4.h"
 #undef MODEL_NUMBER
 #define MODEL_NUMBER "0212"
@@ -16,7 +17,7 @@
 // max regulated: 1740 lm
 #undef PWM_CHANNELS
 #define PWM_CHANNELS 1
-#define RAMP_LENGTH 150
+#define RAMP_SIZE 150
 // prioritize low lows, at risk of visible ripple
 // level_calc.py 5.01 1 149 7135 1 0.3 1740 --pwm dyn:78:16384:255
 #undef PWM1_LEVELS
@@ -49,9 +50,6 @@
 #define SIMPLE_UI_CEIL RAMP_DISCRETE_CEIL
 
 
-// make candle mode wobble more
-#define CANDLE_AMPLITUDE 32
-
 // slow down party strobe; this driver can't pulse for 1ms or less
 // (only needed on no-FET build)
 #define PARTY_STROBE_ONTIME 2
-- 
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