Add Cerberus to QMK

keyboards/cannonkeys/cerberus/config.h

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+// Copyright 2024 Andrew Kannan
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define WS2812_SPI_DRIVER SPID2
+#define WS2812_SPI_MOSI_PAL_MODE 0
+#define WS2812_SPI_SCK_PAL_MODE 0
+#define WS2812_SPI_SCK_PIN B13

keyboards/cannonkeys/cerberus/halconf.h

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+// Copyright 2024 Andrew Kannan
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define HAL_USE_SPI TRUE
+
+#include_next <halconf.h>
+

keyboards/cannonkeys/cerberus/hotswap/keymaps/default/keymap.c

@@ -0,0 +1,26 @@
+// Copyright 2024 Andrew Kannan
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+enum layer_names {
+    _BASE,
+    _FN1,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [_BASE] = LAYOUT_all(
+        KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_GRV, KC_INS, KC_HOME, KC_PGUP,
+        KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL, KC_END, KC_PGDN,
+        KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT,          KC_ENT,
+        KC_LSFT,          KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_LSFT, MO(1), KC_UP,
+        KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_LALT, MO(1), KC_LGUI, KC_LCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    ),
+
+    [_FN1] = LAYOUT_all(
+        KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_TRNS, KC_TRNS, KC_PSCR, KC_SCRL, KC_PAUS,
+        UG_TOGG, UG_HUEU, UG_SATU, UG_VALU, UG_SPDU, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, UG_HUED, UG_SATD, UG_VALD, UG_SPDD, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, UG_PREV, UG_NEXT, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        QK_BOOT, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
+    ),
+};

keyboards/cannonkeys/cerberus/hotswap/rules.mk

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+# Wildcard to allow APM32 MCU
+DFU_SUFFIX_ARGS = -v FFFF -p FFFF

keyboards/cannonkeys/cerberus/info.json

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+{
+    "manufacturer": "CannonKeys",
+    "maintainer": "awkannan",
+    "bootloader": "stm32-dfu",
+    "diode_direction": "COL2ROW",
+    "features": {
+        "bootmagic": true,
+        "command": true,
+        "console": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true,
+        "rgblight": true
+    },
+    "matrix_pins": {
+        "cols": ["B0", "C15", "C14", "A7", "A5", "C13", "A4", "A2", "A1", "A0", "B9", "B8", "B7", "A3", "B6", "B4", "B3", "A15"],
+        "rows": ["B11", "B10", "B2", "F0", "B5"]
+    },
+    "processor": "STM32F072",
+    "qmk": {
+        "locking": {
+            "enabled": true,
+            "resync": true
+        }
+    },
+    "rgblight": {
+        "animations": {
+            "alternating": true,
+            "breathing": true,
+            "christmas": true,
+            "knight": true,
+            "rainbow_mood": true,
+            "rainbow_swirl": true,
+            "rgb_test": true,
+            "snake": true,
+            "static_gradient": true,
+            "twinkle": true
+        },
+        "led_count": 4
+    },
+    "url": "https://cannonkeys.com",
+    "usb": {
+        "device_version": "0.0.1",
+        "vid": "0xCA04"
+    },
+    "ws2812": {
+        "driver": "spi",
+        "pin": "B15"
+    }
+}

keyboards/cannonkeys/cerberus/mcuconf.h

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+// Copyright 2024 Andrew Kannan
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_SPI_USE_SPI2
+#define STM32_SPI_USE_SPI2 TRUE

keyboards/cannonkeys/cerberus/readme.md

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+# Cerberus Keyboard by CannonKeys
+
+This folder contains firmware for both the Solderable and Hotswap version of Cerberus
+
+The hotswap PCB does not support per-key LEDs and has reduced layout support (no ISO)
+
+* Keyboard Maintainer: [Andrew Kannan](https://github.com/awkannan)
+* Hardware Supported: STM32F072CBT6
+
+Make example for this keyboard (after setting up your build environment):
+
+    make cannonkeys/cerberus:solderable:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Toggle the switch on the back of the pcb to "1" and briefly press the button on the back of the PCB
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available

keyboards/cannonkeys/cerberus/solderable/config.h

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+// Copyright 2024 Andrew Kannan
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define BACKLIGHT_PWM_DRIVER    PWMD3
+#define BACKLIGHT_PWM_CHANNEL   1
+#define BACKLIGHT_PAL_MODE      1

keyboards/cannonkeys/cerberus/solderable/halconf.h

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+// Copyright 2024 Andrew Kannan
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+
+#pragma once
+
+#define HAL_USE_PWM TRUE
+
+#include_next <halconf.h>
+