[Keymap] Underglow support for Launchpad (#5340)

* added my launchpad

* updated keymap with legends and fixed layout errors

* Added default keymap with added layer for RGB controls and included the necessary config code

* fixed layer orders

* removed my personal keymap to clean PR

* missed an underscore

* updated readme

* removed more unnecessary code

* moved RGB code to its own config phone

* moved underglow info to its own readme

* removed redundant code from default_rgb config.h file, included QMK KEYBOARD H in place of initial defines in keymap.c

* reverted launchpad config

* removing the = because I can't figure out why its there

* Revert "removing the = because I can't figure out why its there"

This reverts commit e3b5e6d568e7225635844ba617aaef4f77727ce6.

* reverted rev1/config.h

* reverted all files I should not have touched

* removing redundant code in rules.mk

* readibility improvements to keymap

keyboards/launchpad/keymaps/default_rgb/config.h

@@ -0,0 +1,9 @@
+#pragma once
+
+/* Underlight Configuration */
+#define RGB_DI_PIN F4
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 2  // Number of LEDs
+#define RGBLIGHT_HUE_STEP 10
+#define RGBLIGHT_SAT_STEP 17
+#define RGBLIGHT_VAL_STEP 17

keyboards/launchpad/keymaps/default_rgb/keymap.c

@@ -0,0 +1,76 @@
+// Below layout is based upon /u/That-Canadian's planck layout
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _RGB 1
+#define _FUNC 15
+
+// Defines for task manager and such
+#define CALTDEL LCTL(LALT(KC_DEL))
+#define TSKMGR LCTL(LSFT(KC_ESC))
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+    /* Qwerty
+     * ,-------------.
+     * |   1  |  2   |
+     * |------+------|
+     * |   3  |  4   |
+     * |------+------|
+     * |   5  |  6   |
+     * |------+------|
+     * | FUNC | RGB  |
+     * `-------------'
+     */
+    [_QWERTY] = LAYOUT( \
+        KC_1,      KC_2, \
+        KC_3,      KC_4, \
+        KC_5,      KC_6, \
+        MO(_FUNC), TG(_RGB) \
+      ),
+
+    /* RGB
+     * ,-------------.
+     * | Mode-| Mode+|
+     * |------+------|
+     * | HUE- | HUE+ |
+     * |------+------|
+     * | SAT- | SAT+ |
+     * |------+------|
+     * |RGBTOG|      |
+     * `-------------'
+     */
+    [_RGB] = LAYOUT( \
+        RGB_RMOD, RGB_MOD, \
+        RGB_HUD,  RGB_HUI, \
+        RGB_SAD,  RGB_SAI, \
+        RGB_TOG,  KC_TRNS \
+      ),
+
+    /* Function
+     * ,-------------.
+     * |   Q  |CALDEL|
+     * |------+------|
+     * |   A  |TSKMGR|
+     * |------+------|
+     * |   Z  |  X   |
+     * |------+------|
+     * |      |  C   |
+     * `-------------'
+     */
+    [_FUNC] = LAYOUT( \
+        KC_Q,    CALTDEL, \
+        KC_A,    TSKMGR, \
+        KC_Z,    KC_X, \
+        _______, KC_C \
+      )
+
+};
+
+void matrix_init_user(void) {}

keyboards/launchpad/keymaps/default_rgb/readme.md

@@ -0,0 +1,41 @@
+# Launch Pad
+
+![Launch Pad](https://i.imgur.com/WVTe0Ku.png)
+
+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+
+A budget-minded, 4-8 key macro-pad with built in legs, plate & case.
+
+Supports MX & Alps switches. 2x 1u or 1x 2u supported for each row.
+
+Supports 2u PCB-Mount stabilizers.
+
+Runs off of 1x Pro Micro & 8x diodes (1n4148).
+
+Optional "Reset" switch can be used on the PCB.
+
+A fantastic project for beginners to learn to solder, veteran's of the hobby who want to add an easy macro-pad to their collection, and everyone in between.
+
+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+
+Make example for this keyboard (after setting up your build environment):
+
+    make launchpad/rev1:default
+
+See [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) then the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information.
+
+# Under Glow
+
+![Underglow](https://i.imgur.com/3zFIOmu.jpg)
+
+SpaceCat now provides an underglow add-on kit. Please refer to the picture above for wiring.
+
+Make example for this keyboard (after setting up your build environment):
+
+    make launchpad/rev1:default_rgb
+
+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+
+Due to PCB tolerance issues outside of our control, the snap-apart legs included on the PCB may need extra padding to prevent a small amount of wobbling once placed properly. We have included small, clear, and semi-permanent "glue dots" in each order (PCB Only -and- Full Kit) to help with this. You may also use plastic wrap, tape, Elmer's glue, hot glue, rubber cement, etc. We advise against using anything more "permanent" in case you wish to make changes to your Launch Pad in the future. It is also best to attach legs after all of your soldering and building is finished, to get the most accurate feel for your Launch Pad.
+
+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

keyboards/launchpad/keymaps/default_rgb/rules.mk

@@ -0,0 +1 @@
+RGBLIGHT_ENABLE = yes        # Enable WS2812 RGB underlight.