[Keyboard] add Just60 keyboard (#7752)

* [Keyboard] add Just60 keyboard

* [Keyboard] just60: fixes per suggestions

* Update keyboards/just60/rules.mk

* Update keyboards/just60/readme.md

* Update keyboards/just60/rules.mk

* [Keyboard] just60: add keymap specific bootloader

* Revert "[Keyboard] just60: add keymap specific bootloader"

This reverts commit 0357e0a6f40233eec43f42c32fb405f60e7fbb1c.

6 files changed, 216 insertions, 0 deletions

diff --git a/keyboards/just60/config.h b/keyboards/just60/config.h
new file mode 100644
index 000000000..ef0af7c61
--- /dev/null
+++ b/keyboards/just60/config.h
@@ -0,0 +1,54 @@
+/*
+Copyright 2019 Jianfei Wang
+
+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
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x1960
+#define DEVICE_VER 0x0001
+#define MANUFACTURER YDKB
+#define PRODUCT Just60
+#define DESCRIPTION Just60 Keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 14
+
+#define MATRIX_ROW_PINS { E2, C7, B3, B2, B1 }
+#define MATRIX_COL_PINS { D6, D7, B4, B6, B5, B7, F7, F6, F5, F4, F1, F0, E6, B0 }
+#define UNUSED_PINS
+#define DIODE_DIRECTION COL2ROW
+
+#define QMK_ESC_OUTPUT D6 // usually COL
+#define QMK_ESC_INPUT E2 // usually ROW
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 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
+
+/* disable these deprecated features by default */
+#ifndef LINK_TIME_OPTIMIZATION_ENABLE
+  #define NO_ACTION_MACRO
+  #define NO_ACTION_FUNCTION
+#endif
diff --git a/keyboards/just60/just60.h b/keyboards/just60/just60.h
new file mode 100644
index 000000000..426324fe0
--- /dev/null
+++ b/keyboards/just60/just60.h
@@ -0,0 +1,41 @@
+/* Copyright 2019 Jianfei Wang
+ *
+ * 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
+
+#include "quantum.h"
+
+/* This is a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
+#define LAYOUT( \
+      K00,   K01,   K02,   K03,   K04,   K05,   K06,   K07,   K08,   K09,   K0A,   K0B,   K0C,   K48  , \
+      K10,   K11,   K12,   K13,   K14,   K15,   K16,   K17,   K18,   K19,   K1A,   K1B,   K1C,   K1D  , \
+      K20,   K21,   K22,   K23,   K24,   K25,   K26,   K27,   K28,   K29,   K2A,   K2B,          K2D  , \
+      K30,   K31,   K32,   K33,   K34,   K35,   K36,   K37,   K38,   K39,   K3A,          K3C,          \
+      K40,   K41,   K42,          K44,   K45,          K47,          K49,   K4A,   K4B,   K4C,   K4D    \
+) { \
+    { K00,   K01,   K02,   K03,   K04,   K05,   K06,   K07,   K08,   K09,   K0A,   K0B,   K0C, KC_NO }, \
+    { K10,   K11,   K12,   K13,   K14,   K15,   K16,   K17,   K18,   K19,   K1A,   K1B,   K1C,   K1D }, \
+    { K20,   K21,   K22,   K23,   K24,   K25,   K26,   K27,   K28,   K29,   K2A,   K2B, KC_NO,   K2D }, \
+    { K30,   K31,   K32,   K33,   K34,   K35,   K36,   K37,   K38,   K39,   K3A, KC_NO,   K3C, KC_NO }, \
+    { K40,   K41,   K42,   KC_NO, K44,   K45, KC_NO,   K47,   K48,   K49,   K4A,   K4B,   K4C,   K4D }, \
+}
diff --git a/keyboards/just60/keymaps/default/keymap.c b/keyboards/just60/keymaps/default/keymap.c
new file mode 100644
index 000000000..da034e0e4
--- /dev/null
+++ b/keyboards/just60/keymaps/default/keymap.c
@@ -0,0 +1,50 @@
+/* Copyright 2019 Jianfei Wang
+ *
+ * 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
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+    _BASE,
+    _FN,
+    _COMMAND
+};
+
+#define FN_SPC LT(_FN, KC_SPC)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Base */
+    [_BASE] = LAYOUT(
+        KC_GESC,    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_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,
+        MO(_FN),    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_RSFT,
+        KC_LCTL, KC_LALT, KC_LGUI,  FN_SPC,           KC_SPC,          KC_RGUI, KC_RALT,          KC_LEFT, KC_DOWN,   KC_UP, KC_RGHT
+    ),
+    [_FN] = LAYOUT(
+         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_CAPS, KC_HOME,   KC_UP,  KC_END, KC_PGUP, _______, _______, _______, _______, _______, _______,  KC_INS,  KC_DEL, _______,
+        _______, KC_LEFT, KC_DOWN, KC_RGHT, KC_PGDN, _______, KC_LEFT, KC_DOWN,   KC_UP, KC_RGHT, _______, _______,     MO(_COMMAND),
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______,          _______,          _______, _______,          KC_HOME, KC_PGDN, KC_PGUP,  KC_END
+     ),
+    [_COMMAND] = LAYOUT(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, EEP_RST,   RESET,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______,          _______,          _______, _______,          _______, _______, _______, _______
+     )
+};
diff --git a/keyboards/just60/keymaps/default/readme.md b/keyboards/just60/keymaps/default/readme.md
new file mode 100644
index 000000000..927618c91
--- /dev/null
+++ b/keyboards/just60/keymaps/default/readme.md
@@ -0,0 +1,19 @@
+# The default keymap for Just60
+
+Just60 could be customized to many layouts, and this is just one of them.
+
+This layout is an ANSI layout with a Minila spacebar row.
+
+```
+ +-------------------------------------------------------------------------+
+ | ESC | 1 |  2 |  3 |  4 |  5 |  6 |  7 |  8 |  9 |  0 |  - |  = | BACKSP |
+ +-------------------------------------------------------------------------+
+ | TAB  |  Q |  W |  E |  R |  T |  Y |  U |  I |  O |  P |  [ |  ] |   \  |
+ +-------------------------------------------------------------------------+
+ | FN     |  A |  S |  D |  F |  G |  H |  J |  K |  L |  ; |  ' |  RETURN |
+ +-------------------------------------------------------------------------+
+ | LSHIFT   |  Z |  X |  C |  V |  B |  N |  M |  , |  . |  / |   RSHIFT   |
+ +-------------------------------------------------------------------------+
+ | LCMD | LALT | LGUI | FN | SPACE | RGUI | RALT | LEFT | DOWN | UP | RGHT |
+ +-------------------------------------------------------------------------+
+```
diff --git a/keyboards/just60/readme.md b/keyboards/just60/readme.md
new file mode 100644
index 000000000..f78adcd52
--- /dev/null
+++ b/keyboards/just60/readme.md
@@ -0,0 +1,17 @@
+# Just60
+
+Just60 keyboard produced by Yang. The keyboard comes with a custom Mass Storage Device bootloader and a TMK based firmware from ydkb.io.
+
+To use a QMK based firmware, you might want to install a QMK bootloader. The PCB exposes 6 pins for ISP(In-System Programming), and they are located just under the ATMega32U4 chip. From left to right, the pins are `VCC`, `SCLK`, `MOSI`, `MISO`, `RESET`, `GND`. The `GND` is the square one. You could program the flash with any AVR programmer, or a Raspberry Pi with `avrdude`.
+
+Backlight LEDs and Bluetooth are not working yet.
+
+* Keyboard Maintainer: [Jianfei Wang](https://github.com/thinxer)
+* Hardware Supported: Just60 (atmega32u4)
+* Hardware Availability: https://item.taobao.com/item.htm?id=564176654249
+
+Make example for this keyboard (after setting up your build environment):
+
+    make just60: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).
diff --git a/keyboards/just60/rules.mk b/keyboards/just60/rules.mk
new file mode 100644
index 000000000..3aaf10154
--- /dev/null
+++ b/keyboards/just60/rules.mk
@@ -0,0 +1,35 @@
+# MCU name
+MCU = atmega32u4
+
+# Processor frequency
+F_CPU = 8000000
+
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = lufa-ms
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = no        # Mouse keys
+EXTRAKEY_ENABLE = no        # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no            # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+MIDI_ENABLE = no            # MIDI support
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no         # Enable support for HD44780 based LCDs