Add Chocopad keyboard

keyboards/chocopad/README.md

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+Chocopad
+========
+
+A 4x4 macropad keyboard using Kailh PG1350 Lower Profile Choc switches.
+
+Keyboard Maintainer: Keebio  
+Hardware Supported: Chocopad PCB, Arduino Pro Micro  
+Hardware Availability: [Keebio](https://keeb.io)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make chocopad:default
+
+See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.

keyboards/chocopad/chocopad.c

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+#include "chocopad.h"

keyboards/chocopad/chocopad.h

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+#ifndef CHOCOPAD_H
+#define CHOCOPAD_H
+
+#include "quantum.h"
+
+#define KEYMAP( \
+    A1, A2, A3, A4, \
+    B1, B2, B3, B4, \
+    C1, C2, C3, C4, \
+    D1, D2, D3, D4 \
+) { \
+    { A1, A2, A3, A4 }, \
+    { B1, B2, B3, B4 }, \
+    { C1, C2, C3, C4 }, \
+    { D1, D2, D3, D4 } \
+}
+
+// Used to create a keymap using only KC_ prefixed keys
+#define KC_KEYMAP( \
+    A1, A2, A3, A4, \
+    B1, B2, B3, B4, \
+    C1, C2, C3, C4, \
+    D1, D2, D3, D4 \
+) \
+    KEYMAP( \
+        KC_##A1, KC_##A2, KC_##A3, KC_##A4, \
+        KC_##B1, KC_##B2, KC_##B3, KC_##B4, \
+        KC_##C1, KC_##C2, KC_##C3, KC_##C4, \
+        KC_##D1, KC_##D2, KC_##D3, KC_##D4 \
+    )
+
+#endif

keyboards/chocopad/config.h

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+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xCEEB
+#define PRODUCT_ID      0x1144
+#define DEVICE_VER      0x0100
+#define MANUFACTURER    Keebio
+#define PRODUCT         Chocopad
+#define DESCRIPTION     4x4 macropad using Kailh Choc low-profile switches
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 4
+
+/* key matrix pins */
+#define MATRIX_ROW_PINS { D7, E6, B3, B2 }
+#define MATRIX_COL_PINS { D2, D4, F6, F5 }
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* number of backlight levels */
+#define BACKLIGHT_PIN B5
+#define BACKLIGHT_LEVELS 6
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/* prevent stuck modifiers */
+#define PREVENT_STUCK_MODIFIERS
+
+
+#ifdef RGB_DI_PIN
+#define RGBLIGHT_ANIMATIONS
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+#endif
+#define RGB_DI_PIN D3
+#define RGBLIGHT_TIMER
+#define RGBLED_NUM 4
+#define ws2812_PORTREG  PORTD
+#define ws2812_DDRREG   DDRD
+
+#endif

keyboards/chocopad/keymaps/default/config.h

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+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+#endif

keyboards/chocopad/keymaps/default/keymap.c

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+#include "chocopad.h"
+
+#define _BASE 0
+#define _FN1 1
+#define _FN2 2
+
+#define KC_ KC_TRNS
+#define _______ KC_TRNS
+
+#define KC_X1 MO(_FN1)
+#define KC_X2 MO(_FN2)
+#define KC_RST RESET
+#define KC_BSTP BL_STEP
+#define KC_RTOG RGB_TOG
+#define KC_RMOD RGB_MOD
+#define KC_RHUI RGB_HUI
+#define KC_RHUD RGB_HUD
+#define KC_RSAI RGB_SAI
+#define KC_RSAD RGB_SAD
+#define KC_RVAI RGB_VAI
+#define KC_RVAD RGB_VAD
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [_BASE] = KC_KEYMAP(
+  //,----+----+----+----.
+     PGUP,HOME, UP ,END ,
+  //|----+----+----+----|
+     PGDN,LEFT,DOWN,RGHT,
+  //|----+----+----+----|
+      X2 ,VOLU,MPLY,MPRV,
+  //|----+----+----+----|
+      X1 ,VOLD,MUTE,MNXT
+  //`----+----+----+----'
+  ),
+
+  [_FN1] = KC_KEYMAP(
+  //,----+----+----+----.
+     ESC , P7 , P8 , P9 ,
+  //|----+----+----+----|
+     TAB , P4 , P5 , P6 ,
+  //|----+----+----+----|
+     ENT , P1 , P2 , P3 ,
+  //|----+----+----+----|
+         , P0 , P0 ,DOT 
+  //`----+----+----+----'
+  ),
+
+  [_FN2] = KC_KEYMAP(
+  //,----+----+----+----.
+     RTOG,RHUI,RSAI,RVAI,
+  //|----+----+----+----|
+     RMOD,RHUD,RSAD,RVAD,
+  //|----+----+----+----|
+         ,    ,    ,RST ,
+  //|----+----+----+----|
+     BSTP,    ,    ,    
+  //`----+----+----+----'
+  )
+
+};

keyboards/chocopad/keymaps/default/rules.mk

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+RGBLIGHT_ENABLE = yes
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/chocopad/rules.mk

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+# MCU name
+MCU = atmega32u4
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+#   comment out to disable the options.
+#
+BOOTMAGIC_ENABLE = no	# Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes	# Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes	# Audio control and System control(+450)
+CONSOLE_ENABLE = no	# Console for debug(+400)
+COMMAND_ENABLE = no    # Commands for debug and configuration
+SLEEP_LED_ENABLE = no  # Breathing sleep LED during USB suspend
+NKRO_ENABLE = yes		# USB Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
+AUDIO_ENABLE = no
+RGBLIGHT_ENABLE = yes