switched the rest of FSM + Anduril to use SPDX license headers

instead of full GPL headers (or all too often, nothing at all)

There are a few "FIXME" entries where I'm not sure about the correct copyright.

39 files changed, 216 insertions, 223 deletions

diff --git a/hwdef-BLF_GT.h b/hwdef-BLF_GT.h
index 51b391d..94d510c 100644
--- a/hwdef-BLF_GT.h
+++ b/hwdef-BLF_GT.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_BLF_GT_H
-#define HWDEF_BLF_GT_H
+// BLF GT driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* BLF GT driver layout
+/*
  *           ----
  *   Reset -|1  8|- VCC (unused)
  * eswitch -|2  7|- Voltage divider
@@ -57,4 +59,3 @@
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-BLF_GT_Mini.h b/hwdef-BLF_GT_Mini.h
index 43f74f3..1706749 100644
--- a/hwdef-BLF_GT_Mini.h
+++ b/hwdef-BLF_GT_Mini.h
@@ -1,8 +1,8 @@
-#ifndef HWDEF_BLF_GT_MINI_H
-#define HWDEF_BLF_GT_MINI_H
+// BLF/Lumintop GT Mini driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* BLF/Lumintop GT Mini driver layout
- */
 // exactly the same as a D1S, but with a lighted button
 #include "hwdef-Emisar_D1S.h"
 
@@ -11,4 +11,3 @@
 #define AUXLED_PIN   PB4    // pin 3
 #endif
 
-#endif
diff --git a/hwdef-BLF_LT1-t1616.h b/hwdef-BLF_LT1-t1616.h
index 8e5c58b..3e1d946 100644
--- a/hwdef-BLF_LT1-t1616.h
+++ b/hwdef-BLF_LT1-t1616.h
@@ -1,16 +1,16 @@
-#ifndef HWDEF_BLF_LANTERN_T1616_H
-#define HWDEF_BLF_LANTERN_T1616_H
+// BLF LT1 driver layout using the Attiny1616
+// Copyright (C) 2021-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* BLF LT1 driver layout using the Attiny1616
-
-Driver pinout:
+/*
+ * Driver pinout:
  * eSwitch:    PA5
  * Aux LED:    PB5
  * PWM FET:    PB0 (TCA0 WO0)
  * PWM 1x7135: PB1 (TCA0 WO1)
  * Voltage:    VCC
-
-*/
+ */
 
 
 #define LAYOUT_DEFINED
@@ -103,5 +103,3 @@ inline void hwdef_setup() {
     TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
 }
 
-
-#endif
diff --git a/hwdef-BLF_LT1.h b/hwdef-BLF_LT1.h
index 4e81c42..e7c4791 100644
--- a/hwdef-BLF_LT1.h
+++ b/hwdef-BLF_LT1.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_BLF_LT1_H
-#define HWDEF_BLF_LT1_H
+// BLF LT1 driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* BLF LT1 driver layout
+/*
  *           ----
  *   Reset -|1  8|- VCC
  * eswitch -|2  7|- (unused)
@@ -54,5 +56,3 @@ uint16_t PWM1_LVL;
 
 #define LAYOUT_DEFINED
 
-
-#endif
diff --git a/hwdef-BLF_Q8-T1616.h b/hwdef-BLF_Q8-T1616.h
index d6ad760..25734ba 100644
--- a/hwdef-BLF_Q8-T1616.h
+++ b/hwdef-BLF_Q8-T1616.h
@@ -1,15 +1,15 @@
-#ifndef HWDEF_BLF_Q8_T1616_H
-#define HWDEF_BLF_Q8_T1616_H
+// BLF Q8 driver layout using the Attiny1616
+// Copyright (C) 2021-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* BLF Q8 driver layout using the Attiny1616
-
-Driver pinout:
+/*
+ * Driver pinout:
  * eSwitch:    PA5
  * Aux LED:    PB5
  * PWM FET:    PB0 (TCA0 WO0)
  * PWM 1x7135: PB1 (TCA0 WO1)
  * Voltage:    VCC
-
 */
 
 
@@ -103,5 +103,3 @@ inline void hwdef_setup() {
     TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
 }
 
-
-#endif
diff --git a/hwdef-BLF_Q8.h b/hwdef-BLF_Q8.h
index 5dac5d2..da55bd4 100644
--- a/hwdef-BLF_Q8.h
+++ b/hwdef-BLF_Q8.h
@@ -1,9 +1,9 @@
-#ifndef HWDEF_BLF_Q8_H
-#define HWDEF_BLF_Q8_H
+// BLF Q8 driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* BLF Q8 driver layout
- * Q8 driver is the same as a D4, basically
- */
+// Q8 driver is the same as a D4, basically
 
 // ... except the Q8 has a lighted button
 #ifndef AUXLED_PIN
@@ -18,4 +18,3 @@
 // Q8 driver is the same as a D4, basically
 #include "hwdef-Emisar_D4.h"
 
-#endif
diff --git a/hwdef-Emisar_D1.h b/hwdef-Emisar_D1.h
index caf1d4e..bf3a224 100644
--- a/hwdef-Emisar_D1.h
+++ b/hwdef-Emisar_D1.h
@@ -1,9 +1,8 @@
-#ifndef HWDEF_EMISAR_D1_H
-#define HWDEF_EMISAR_D1_H
+// Emisar D1 driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Emisar D1 driver layout
- */
 // D1 driver is exactly the same as a D4
 #include "hwdef-Emisar_D4.h"
 
-#endif
diff --git a/hwdef-Emisar_D18.h b/hwdef-Emisar_D18.h
index 3a238eb..b9f5b2e 100644
--- a/hwdef-Emisar_D18.h
+++ b/hwdef-Emisar_D18.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_EMISAR_D18_H
-#define HWDEF_EMISAR_D18_H
+// Emisar D18 (FET+13+1) driver layout
+// Copyright (C) 2019-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Emisar D18 (FET+13+1) driver layout
+/*
  *           ----
  *   Reset -|1  8|- VCC
  * eswitch -|2  7|- aux LED?
@@ -45,4 +47,3 @@
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Emisar_D1S.h b/hwdef-Emisar_D1S.h
index 2e9fffa..15cbedb 100644
--- a/hwdef-Emisar_D1S.h
+++ b/hwdef-Emisar_D1S.h
@@ -1,9 +1,8 @@
-#ifndef HWDEF_EMISAR_D1S_H
-#define HWDEF_EMISAR_D1S_H
+// Emisar D1S driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Emisar D1S driver layout
- */
 // D1S driver is exactly the same as a D4
 #include "hwdef-Emisar_D4.h"
 
-#endif
diff --git a/hwdef-Emisar_D4.h b/hwdef-Emisar_D4.h
index d062d6f..fdb42a1 100644
--- a/hwdef-Emisar_D4.h
+++ b/hwdef-Emisar_D4.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_EMISAR_D4_H
-#define HWDEF_EMISAR_D4_H
+// Emisar D4 driver layout
+// Copyright (C) 2017-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Emisar D4 driver layout
+/*
  *           ----
  *   Reset -|1  8|- VCC
  * eswitch -|2  7|-
@@ -44,4 +46,3 @@
 #define FAST 0xA3           // fast PWM both channels
 #define PHASE 0xA1          // phase-correct PWM both channels
 
-#endif
diff --git a/hwdef-Emisar_D4S.h b/hwdef-Emisar_D4S.h
index 05a60f9..97d8529 100644
--- a/hwdef-Emisar_D4S.h
+++ b/hwdef-Emisar_D4S.h
@@ -1,8 +1,8 @@
-#ifndef HWDEF_EMISAR_D4S_H
-#define HWDEF_EMISAR_D4S_H
+// Emisar D4S driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Emisar D4S driver layout
- */
 // same as a D4, basically
 #include "hwdef-Emisar_D4.h"
 
@@ -11,4 +11,3 @@
 #define AUXLED_PIN   PB4    // pin 3
 #endif
 
-#endif
diff --git a/hwdef-Emisar_D4Sv2-tintramp.h b/hwdef-Emisar_D4Sv2-tintramp.h
index 0f4a77a..2709bc4 100644
--- a/hwdef-Emisar_D4Sv2-tintramp.h
+++ b/hwdef-Emisar_D4Sv2-tintramp.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_D4SV2_TINTRAMP_H
-#define HWDEF_D4SV2_TINTRAMP_H
+// Emisar D4Sv2 w/ tint ramping
+// Copyright (C) 2021-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Emisar D4Sv2 w/ tint ramping
+/*
  * (based on the Noctigon K9.3 driver layout (attiny1634))
  *
  * Pin / Name / Function
@@ -185,4 +187,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Emisar_D4Sv2.h b/hwdef-Emisar_D4Sv2.h
index d68b7ac..bd63649 100644
--- a/hwdef-Emisar_D4Sv2.h
+++ b/hwdef-Emisar_D4Sv2.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_EMISAR_D4SV2_H
-#define HWDEF_EMISAR_D4SV2_H
+// Emisar D4Sv2 driver layout (attiny1634)
+// Copyright (C) 2019-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Emisar D4Sv2 driver layout (attiny1634)
+/*
  * (same layout as D4v2, except it's a FET+3+1 instead of FET+1)
  *
  * Pin / Name / Function
@@ -119,4 +121,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Emisar_D4v2.h b/hwdef-Emisar_D4v2.h
index 51e30f8..2864cd4 100644
--- a/hwdef-Emisar_D4v2.h
+++ b/hwdef-Emisar_D4v2.h
@@ -1,9 +1,9 @@
+// hwdef for Emisar D4v2 (attiny1634)
+// Copyright (C) 2018 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
 #pragma once
 
-/* hwdef for Emisar D4v2 (attiny1634)
- * Copyright (C) 2019 Selene ToyKeeper
- * SPDX-License-Identifier: GPL-3.0-or-later
- *
+/*
  * Pin / Name / Function
  *   1    PA6   FET PWM (PWM1B)
  *   2    PA5   red aux LED (PWM0B)
diff --git a/hwdef-FF_PL47.h b/hwdef-FF_PL47.h
index 5cd9684..0171d15 100644
--- a/hwdef-FF_PL47.h
+++ b/hwdef-FF_PL47.h
@@ -1,9 +1,9 @@
-#ifndef HWDEF_FF_PL47_H
-#define HWDEF_FF_PL47_H
+// Fireflies PL47 driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Fireflies PL47 driver layout
- * same as a D4S, basically, except ...
- */
+// same as a D4S, basically, except ...
 
 // ... the PL47 has aux LEDs on pin 7
 #ifndef AUXLED_PIN
@@ -24,4 +24,3 @@
 #undef FSM_EMISAR_D4S_DRIVER
 #undef FSM_EMISAR_D4_DRIVER
 
-#endif
diff --git a/hwdef-FF_ROT66.h b/hwdef-FF_ROT66.h
index 7348ab2..e84b565 100644
--- a/hwdef-FF_ROT66.h
+++ b/hwdef-FF_ROT66.h
@@ -1,9 +1,9 @@
-#ifndef HWDEF_FF_ROT66_H
-#define HWDEF_FF_ROT66_H
+// Fireflies ROT66 driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Fireflies ROT66 driver layout
- * same as a FW3A, basically, except ...
- */
+// same as a FW3A, basically, except ...
 
 // ... except the ROT66 has a lighted button
 #ifndef AUXLED_PIN
@@ -22,4 +22,3 @@
 #undef VISION_PIN
 #endif
 
-#endif
diff --git a/hwdef-FW3A.h b/hwdef-FW3A.h
index e8875d7..f2b5c8d 100644
--- a/hwdef-FW3A.h
+++ b/hwdef-FW3A.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_FW3A_H
-#define HWDEF_FW3A_H
+// BLF/TLF FW3A driver layout
+// Copyright (C) 2018-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* BLF/TLF FW3A driver layout
+/*
  *           ----
  *   Reset -|1  8|- VCC
  * eswitch -|2  7|- optic nerve
@@ -47,4 +49,3 @@
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Mateminco_MF01-Mini.h b/hwdef-Mateminco_MF01-Mini.h
index c0de533..557e641 100644
--- a/hwdef-Mateminco_MF01-Mini.h
+++ b/hwdef-Mateminco_MF01-Mini.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_MF01_MINI_H
-#define HWDEF_MF01_MINI_H
+// MF01-Mini driver layout
+// Copyright (C) 2019-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* MF01-Mini driver layout
+/*
  *           ----
  *   Reset -|1  8|- VCC
  * eswitch -|2  7|- aux LEDs
@@ -46,4 +48,3 @@
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Mateminco_MF01S.h b/hwdef-Mateminco_MF01S.h
index 78a64a6..0ae30a6 100644
--- a/hwdef-Mateminco_MF01S.h
+++ b/hwdef-Mateminco_MF01S.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_MF01S_H
-#define HWDEF_MF01S_H
+// MF01S driver layout
+// Copyright (C) 2019-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* MF01S driver layout
+/*
  *           ----
  *   Reset -|1  8|- VCC (unused)
  * eswitch -|2  7|- Voltage divider (2S)
@@ -57,4 +59,3 @@
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Mateminco_MT35-Mini.h b/hwdef-Mateminco_MT35-Mini.h
index 344f658..995a514 100644
--- a/hwdef-Mateminco_MT35-Mini.h
+++ b/hwdef-Mateminco_MT35-Mini.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_MT35_MINI_H
-#define HWDEF_MT35_MINI_H
+// Mateminco MT35-Mini / Astrolux FT03
+// Copyright (C) 2022-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Mateminco MT35-Mini / Astrolux FT03
+/*
  *           ----
  *   Reset -|1  8|- VCC
  * eswitch -|2  7|- Aux LED
@@ -44,4 +46,3 @@
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Noctigon_DM11-12V.h b/hwdef-Noctigon_DM11-12V.h
index a0d9715..104b6ae 100644
--- a/hwdef-Noctigon_DM11-12V.h
+++ b/hwdef-Noctigon_DM11-12V.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_NOCTIGON_DM11_12V_H
-#define HWDEF_NOCTIGON_DM11_12V_H
+// Noctigon DM11 (12V) driver layout (attiny1634)
+// Copyright (C) 2021-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon DM11 (12V) driver layout (attiny1634)
+/*
  * (based on Noctigon K1)
  *
  * Pin / Name / Function
@@ -162,4 +164,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Noctigon_DM11-SBT90.h b/hwdef-Noctigon_DM11-SBT90.h
index 8d7aa3d..c56b8ce 100644
--- a/hwdef-Noctigon_DM11-SBT90.h
+++ b/hwdef-Noctigon_DM11-SBT90.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_NOCTIGON_DM11SBT90_H
-#define HWDEF_NOCTIGON_DM11SBT90_H
+// Noctigon DM11-SBT90.2 driver layout (attiny1634)
+// Copyright (C) 2021-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon DM11-SBT90.2 driver layout (attiny1634)
+/*
  * (based on Noctigon K1 and DM11)
  *
  * Pin / Name / Function
@@ -154,4 +156,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Noctigon_DM11.h b/hwdef-Noctigon_DM11.h
index ea51432..619e12d 100644
--- a/hwdef-Noctigon_DM11.h
+++ b/hwdef-Noctigon_DM11.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_NOCTIGON_DM11_H
-#define HWDEF_NOCTIGON_DM11_H
+// Noctigon DM11 driver layout (attiny1634)
+// Copyright (C) 2021-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon DM11 driver layout (attiny1634)
+/*
  * (based on Noctigon K1)
  *
  * Pin / Name / Function
@@ -153,4 +155,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Noctigon_K1-12V.h b/hwdef-Noctigon_K1-12V.h
index b17aad0..33ed34d 100644
--- a/hwdef-Noctigon_K1-12V.h
+++ b/hwdef-Noctigon_K1-12V.h
@@ -1,9 +1,9 @@
-#ifndef HWDEF_NOCTIGON_K1_12V_H
-#define HWDEF_NOCTIGON_K1_12V_H
+// Noctigon K1 12V driver layout (attiny1634)
+// Copyright (C) 2019-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon K1 driver layout (attiny1634)
- * (originally known as Emisar D1S V2)
- *
+/*
  * Pin / Name / Function
  *   1    PA6   (none) (PWM1B) (reserved for DD drivers)
  *   2    PA5   R: red aux LED (PWM0B)
@@ -135,4 +135,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Noctigon_K1-SBT90.h b/hwdef-Noctigon_K1-SBT90.h
index c19a4a6..9d91c1c 100644
--- a/hwdef-Noctigon_K1-SBT90.h
+++ b/hwdef-Noctigon_K1-SBT90.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_NOCTIGON_K1SBT90_H
-#define HWDEF_NOCTIGON_K1SBT90_H
+// Noctigon K1-SBT90.2 driver layout (attiny1634)
+// Copyright (C) 2019-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon K1-SBT90.2 driver layout (attiny1634)
+/*
  * (mostly the same as KR4 driver)
  *
  * Pin / Name / Function
@@ -140,4 +142,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Noctigon_K1.h b/hwdef-Noctigon_K1.h
index 4c0ce05..2e44e23 100644
--- a/hwdef-Noctigon_K1.h
+++ b/hwdef-Noctigon_K1.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_NOCTIGON_K1_H
-#define HWDEF_NOCTIGON_K1_H
+// Noctigon K1 driver layout (attiny1634)
+// Copyright (C) 2019-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon K1 driver layout (attiny1634)
+/*
  * (originally known as Emisar D1S V2)
  *
  * Pin / Name / Function
@@ -131,4 +133,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Noctigon_K9.3.h b/hwdef-Noctigon_K9.3.h
index 6032b4c..2f1ffe0 100644
--- a/hwdef-Noctigon_K9.3.h
+++ b/hwdef-Noctigon_K9.3.h
@@ -1,8 +1,9 @@
-#ifndef HWDEF_NOCTIGON_K93_H
-#define HWDEF_NOCTIGON_K93_H
+// Noctigon K9.3 driver layout (attiny1634)
+// Copyright (C) 2020-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon K9.3 driver layout (attiny1634)
- *
+/*
  * Pin / Name / Function
  *   1    PA6   2nd LED PWM (linear) (PWM1B)
  *   2    PA5   R: red aux LED (PWM0B)
@@ -161,4 +162,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Noctigon_KR4-12V.h b/hwdef-Noctigon_KR4-12V.h
index e6cf18a..57d39f2 100644
--- a/hwdef-Noctigon_KR4-12V.h
+++ b/hwdef-Noctigon_KR4-12V.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_NOCTIGON_KR4_12V_H
-#define HWDEF_NOCTIGON_KR4_12V_H
+// Noctigon KR4 (12V) driver layout (attiny1634)
+// Copyright (C) 2020-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon KR4 (12V) driver layout (attiny1634)
+/*
  * (based on Noctigon DM11-12V and KR4)
  *
  * Pin / Name / Function
@@ -154,4 +156,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Noctigon_KR4-tintramp.h b/hwdef-Noctigon_KR4-tintramp.h
index 3bd57fe..78a4d6b 100644
--- a/hwdef-Noctigon_KR4-tintramp.h
+++ b/hwdef-Noctigon_KR4-tintramp.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_KR4_TINTRAMP_H
-#define HWDEF_KR4_TINTRAMP_H
+// Noctigon KR4 w/ tint ramping
+// Copyright (C) 2021-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon KR4 w/ tint ramping
+/*
  * (same driver as D4Sv2-tintramp, but with the switch on a different pin)
  *
  * Pin / Name / Function
@@ -43,4 +45,3 @@
 // the rest of the config is the same as D4Sv2-tintramp
 #include "hwdef-Emisar_D4Sv2-tintramp.h"
 
-#endif
diff --git a/hwdef-Noctigon_KR4.h b/hwdef-Noctigon_KR4.h
index 487d3ac..1c863cb 100644
--- a/hwdef-Noctigon_KR4.h
+++ b/hwdef-Noctigon_KR4.h
@@ -1,8 +1,9 @@
-#ifndef HWDEF_NOCTIGON_KR4_H
-#define HWDEF_NOCTIGON_KR4_H
+// Noctigon KR4 / D4V2.5 driver layout (attiny1634)
+// Copyright (C) 2020-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Noctigon KR4 / D4V2.5 driver layout (attiny1634)
- *
+/*
  * Pin / Name / Function
  *   1    PA6   FET PWM (direct drive) (PWM1B)
  *   2    PA5   R: red aux LED (PWM0B)
@@ -158,4 +159,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Sofirn_LT1S-Pro.c b/hwdef-Sofirn_LT1S-Pro.c
index f617933..8e2163f 100644
--- a/hwdef-Sofirn_LT1S-Pro.c
+++ b/hwdef-Sofirn_LT1S-Pro.c
@@ -1,7 +1,6 @@
 // BLF LT1S Pro hwdef functions
 // Copyright (C) 2023 Selene ToyKeeper
 // SPDX-License-Identifier: GPL-3.0-or-later
-
 #pragma once
 
 
diff --git a/hwdef-Sofirn_LT1S-Pro.h b/hwdef-Sofirn_LT1S-Pro.h
index b50ccc7..4ee466b 100644
--- a/hwdef-Sofirn_LT1S-Pro.h
+++ b/hwdef-Sofirn_LT1S-Pro.h
@@ -1,17 +1,17 @@
-/* BLF LT1S Pro driver layout using the Attiny1616
+// BLF LT1S Pro driver layout using the Attiny1616
+// Copyright (C) 2022-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-Driver pinout:
+/*
+ * Driver pinout:
  * eSwitch:    PA5
  * Aux LED:    PB5
  * WW PWM:     PB0 (TCA0 WO0)
  * CW PWM:     PB1 (TCA0 WO1)
  * Red PWM:    PB2 (TCA0 WO2)
  * Voltage:    VCC
-
-*/
-
-#pragma once
-
+ */
 
 #define HWDEF_C_FILE hwdef-Sofirn_LT1S-Pro.c
 
diff --git a/hwdef-Sofirn_SP10-Pro.h b/hwdef-Sofirn_SP10-Pro.h
index d7c2081..6bc26ea 100644
--- a/hwdef-Sofirn_SP10-Pro.h
+++ b/hwdef-Sofirn_SP10-Pro.h
@@ -1,16 +1,16 @@
-#ifndef HWDEF_SOFIRN_SP10_H
-#define HWDEF_SOFIRN_SP10_H
+// Sofirn SP10 Pro pinout
+// Copyright (C) 2022-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* Sofirn SP10 Pro pinout
-
-ATTINY1616 Mapping:
-PB5 : PWM small channel (TCA0 - WO2 Alternate MUX)
-PB3 : eSwitch
-PB0 : PWM big channel (TCA0 - WO0)
-PB4 : Voltage divider (ADC0 - AIN9)
-PA1 : Boost Enable
-
-*/
+/*
+ * ATTINY1616 Mapping:
+ * PB5 : PWM small channel (TCA0 - WO2 Alternate MUX)
+ * PB3 : eSwitch
+ * PB0 : PWM big channel (TCA0 - WO0)
+ * PB4 : Voltage divider (ADC0 - AIN9)
+ * PA1 : Boost Enable
+ */
 
 
 #define LAYOUT_DEFINED
@@ -140,5 +140,3 @@ FUSES = {
     .BOOTEND = FUSE_BOOTEND_DEFAULT,  // Boot Section End
 };
 
-
-#endif
diff --git a/hwdef-TK_Saber.h b/hwdef-TK_Saber.h
index e6476b8..8ef58d6 100644
--- a/hwdef-TK_Saber.h
+++ b/hwdef-TK_Saber.h
@@ -1,7 +1,9 @@
-#ifndef HWDEF_TK_SABER_H
-#define HWDEF_TK_SABER_H
+// TK 4-color lightsaber driver layout
+// Copyright (C) 2017-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* TK 4-color lightsaber driver layout
+/*
  *             ----
  *     Reset -|1  8|- VCC
  * PWM 4 (A) -|2  7|- e-switch
@@ -33,4 +35,3 @@
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-Wurkkos_TS10.h b/hwdef-Wurkkos_TS10.h
index 6cfe050..1d138be 100644
--- a/hwdef-Wurkkos_TS10.h
+++ b/hwdef-Wurkkos_TS10.h
@@ -1,17 +1,17 @@
-#ifndef HWDEF_BLF_Q8_T1616_H
-#define HWDEF_BLF_Q8_T1616_H
-
-/* BLF Q8 driver layout using the Attiny1616
-
-Driver pinout:
+// Wurkkos TS10 driver layout
+// Copyright (C) 2022-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+/*
+ * (based on BLF Q8-t1616 driver layout)
+ * Driver pinout:
  * eSwitch:    PA5
  * Aux LED:    PB5
  * PWM FET:    PB0 (TCA0 WO0)
  * PWM 1x7135: PB1 (TCA0 WO1)
  * Voltage:    VCC
-
-*/
-
+ */
 
 #define LAYOUT_DEFINED
 
@@ -113,5 +113,3 @@ inline void hwdef_setup() {
     TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
 }
 
-
-#endif
diff --git a/hwdef-Wurkkos_TS25.h b/hwdef-Wurkkos_TS25.h
index cadd366..cf34754 100644
--- a/hwdef-Wurkkos_TS25.h
+++ b/hwdef-Wurkkos_TS25.h
@@ -1,9 +1,10 @@
-#ifndef HWDEF_WURKKOS_TS25_T1616_H
-#define HWDEF_WURKKOS_TS25_T1616_H
+// Wurkkos TS25 driver layout
+// Copyright (C) 2022-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
-/* BLF Q8 driver layout using the Attiny1616
-
-Driver pinout:
+/*
+ * Driver pinout:
  * eSwitch:    PA5
  * PWM FET:    PB0 (TCA0 WO0)
  * PWM 1x7135: PB1 (TCA0 WO1)
@@ -11,9 +12,7 @@ Driver pinout:
  * Aux Blue:   PC1
  * Aux Red:    PC2
  * Aux Green:  PC3
-
-*/
-
+ */
 
 #define LAYOUT_DEFINED
 
@@ -115,5 +114,3 @@ inline void hwdef_setup() {
     TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
 }
 
-
-#endif
diff --git a/hwdef-fw3x-lume1.h b/hwdef-fw3x-lume1.h
index 09c5bfe..f2e9141 100644
--- a/hwdef-fw3x-lume1.h
+++ b/hwdef-fw3x-lume1.h
@@ -1,5 +1,7 @@
-#ifndef HWDEF_FW3X_LUME1_H
-#define HWDEF_FW3X_LUME1_H
+// lume1 Driver Rev B for FW3x driver layout (attiny1634)
+// Copyright (C) 2020-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
 
 /* lume1 Driver Rev B for FW3x driver layout (attiny1634)
  * www.loneoceans.com/labs/ for more information
@@ -166,4 +168,3 @@ inline void hwdef_setup() {
 
 #define LAYOUT_DEFINED
 
-#endif
diff --git a/hwdef-gchart-fet1-t1616.h b/hwdef-gchart-fet1-t1616.h
index 2435b99..9625738 100644
--- a/hwdef-gchart-fet1-t1616.h
+++ b/hwdef-gchart-fet1-t1616.h
@@ -1,14 +1,14 @@
-#ifndef HWDEF_GCH_FET1_T1616_H
-#define HWDEF_GCH_FET1_T1616_H
-
-/* gChart's custom FET+1 driver layout
-
-PB0 - PWM for FET (TCA - WO0)
-PB1 - PWM for 7135 (TCA - WO1)
-PB2 - Switch pin, internal pullup
-PB3 - Aux LED with 4700 Ohm series resistor
-Read voltage from VCC pin, has diode with ~0.4v drop
-
+// gChart's custom FET+1 driver layout
+// Copyright (C) 2020-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+/*
+ * PB0 - PWM for FET (TCA - WO0)
+ * PB1 - PWM for 7135 (TCA - WO1)
+ * PB2 - Switch pin, internal pullup
+ * PB3 - Aux LED with 4700 Ohm series resistor
+ * Read voltage from VCC pin, has diode with ~0.4v drop
 */
 
 
@@ -102,5 +102,3 @@ inline void hwdef_setup() {
     TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
 }
 
-
-#endif
diff --git a/hwdef-thefreeman-lin16dac.h b/hwdef-thefreeman-lin16dac.h
index 9d6b145..36e3929 100644
--- a/hwdef-thefreeman-lin16dac.h
+++ b/hwdef-thefreeman-lin16dac.h
@@ -1,17 +1,16 @@
-#ifndef HWDEF_THEFREEMAN_LIN18_H
-#define HWDEF_THEFREEMAN_LIN18_H
-
-/* thefreeman's Linear 16 driver using DAC control
-
-PA6 - DAC for LED brightness control
-PA7 - Op-amp enable pin
-PB5 - Aux LED
-PB4 - Switch pin, internal pullup
-PB3 - HDR control, set High to enable the high power channel, set Low for low power
-Read voltage from VCC pin, has PFET so no drop
-
-*/
-
+// thefreeman's Linear 16 driver using DAC control
+// Copyright (C) 2021-2023 (FIXME)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+/*
+ * PA6 - DAC for LED brightness control
+ * PA7 - Op-amp enable pin
+ * PB5 - Aux LED
+ * PB4 - Switch pin, internal pullup
+ * PB3 - HDR control, set High to enable the high power channel, set Low for low power
+ * Read voltage from VCC pin, has PFET so no drop
+ */
 
 #define LAYOUT_DEFINED
 
@@ -105,5 +104,3 @@ inline void hwdef_setup() {
 
 }
 
-
-#endif