[Keymap] Add andrewcharnley keymap for GMMK Pro (qmk#15320)

keyboards/gmmk/pro/ansi/keymaps/andrewcharnley/config.h

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+/* Copyright 2021 Andrew Charnley
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define RGBLIGHT_DEFAULT_MODE RGBLIGHT_MODE_STATIC_LIGHT
+#define RGBLIGHT_DEFAULT_SAT 0
+#define RGB_DISABLE_WHEN_USB_SUSPENDED
+#define RGB_MATRIX_STARTUP_MODE RGB_MATRIX_SOLID_COLOR
+
+

keyboards/gmmk/pro/ansi/keymaps/andrewcharnley/keymap.c

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+/* Copyright 2021 Andrew Charnley
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+// Windows key changed to second FN key. Use KC_LGUI to revert.
+
+enum userspace_layers {
+  QWERTY,
+  FNLAYER
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+    // The FN key by default maps to a momentary toggle to layer 1 to provide access to the RESET key (to put the board into bootloader mode). Without
+    // this mapping, you have to open the case to hit the button on the bottom of the PCB (near the USB cable attachment) while plugging in the USB
+    // cable to get the board into bootloader mode - definitely not fun when you're working on your QMK builds. Remove this and put it back to KC_RGUI
+    // if that's your preference.
+    //
+    // To put the keyboard in bootloader mode, use FN+backslash. If you accidentally put it into bootloader, you can just unplug the USB cable and
+    // it'll be back to normal when you plug it back in.
+
+    [QWERTY] = LAYOUT(
+        KC_ESC,  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_PSCR,          KC_MUTE,
+        KC_GRV,  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_DEL,
+        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_PGUP,
+        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_PGDN,
+        KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,   KC_END,
+        KC_LCTL, MO(FNLAYER), KC_LALT,                            KC_SPC,                       KC_RALT, MO(FNLAYER),KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    ),
+
+    [FNLAYER] = LAYOUT(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          KC_MEDIA_PLAY_PAUSE,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET  ,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,          _______,
+        _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, RGB_VAI, _______,
+        _______, _______, _______,                            _______,                            _______, _______, _______, _______, RGB_VAD, _______
+    ),
+};
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+  if(IS_LAYER_ON(FNLAYER)) {
+     if (clockwise) {
+       tap_code(KC_MEDIA_NEXT_TRACK);
+     } else {
+       tap_code(KC_MEDIA_PREV_TRACK);
+     }
+  } else {
+     if (clockwise) {
+       tap_code(KC_VOLU);
+     } else {
+       tap_code(KC_VOLD);
+     }
+  }
+  return false;
+}
+
+static uint8_t val;
+
+void keyboard_post_init_user(void) {
+
+  val = rgb_matrix_get_val();
+}
+
+void rgb_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
+
+  if (host_keyboard_led_state().caps_lock) {
+    rgb_matrix_set_color_all(val,0,0);
+  } else {
+    rgb_matrix_set_color_all(val, val, val);
+    val = rgb_matrix_get_val();
+  }
+}

keyboards/gmmk/pro/ansi/keymaps/andrewcharnley/readme.md

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+# Description
+A keymap designed to be functional for development purposes - no flashing lights or gimmicks. PRTSC and DEL key in the top right corner.
+Solid backlight that changes red if CAPS is on and reverts back afterwards. Brightness retained in both cases.
+Backlight is disabled on suspend and restored upon wake-up.
+The 'Windows' key is a second FN key. This makes it more natural to use the encoder wheel (good luck trying to do it with one hand).
+
+Compile using `qmk compile -kb gmmk/pro/ansi -km andrewcharnley`
+
+# Encoder
+FN + Encoder scroll = media next/prev
+FN + Encoder press = media pause
+default encoder behavior = volume up/down
+
+# Function Layer
+FN + Up = increase brightness
+FN + Down = decrease brightness
+FN + Backslash = bootloader
+