[Keyboard] Add support for THE50 (#4844)

* Add support for THE50

A 50% custom keyboard designed and produced by LazyDesigners

* THE50 code-improvement

Implement the changes suggested by noroadsleft.

8 files changed, 316 insertions, 0 deletions

diff --git a/keyboards/lazydesigners/the50/config.h b/keyboards/lazydesigners/the50/config.h
new file mode 100644
index 0000000000..e4f91f5eef
--- /dev/null
+++ b/keyboards/lazydesigners/the50/config.h
@@ -0,0 +1,49 @@
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x0050
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    LazyDesigners
+#define PRODUCT         THE50
+#define DESCRIPTION     A 50% keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 15
+
+/* key matrix pins */
+#define MATRIX_ROW_PINS { B0, B1, B2, B3 }
+#define MATRIX_COL_PINS { B5, D0, D1, D2, D3, D4, D5, D6, D7, C6, C7, F4, F5, F6, F7 }
+#define UNUSED_PINS
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* number of backlight levels */
+#define BACKLIGHT_PIN B6
+#ifdef BACKLIGHT_PIN
+#define BACKLIGHT_LEVELS 6
+#endif
+
+/* 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)) \
+)
+
+#define RGB_DI_PIN E6
+#ifdef RGB_DI_PIN
+#define RGBLED_NUM 1
+#define RGBLIGHT_SLEEP
+#endif
diff --git a/keyboards/lazydesigners/the50/info.json b/keyboards/lazydesigners/the50/info.json
new file mode 100644
index 0000000000..16e751dac3
--- /dev/null
+++ b/keyboards/lazydesigners/the50/info.json
@@ -0,0 +1,67 @@
+{
+    "keyboard_name": "THE50", 
+    "url": "http://lazydesigners.cn", 
+    "maintainer": "qmk", 
+    "width": 15.25, 
+    "height": 4, 
+    "layouts": {
+        "LAYOUT": {
+            "key_count": 54,
+            "layout": [
+              {"label":"Esc", "x":0, "y":0},
+              {"label":"Q", "x":1, "y":0},
+              {"label":"W", "x":2, "y":0},
+              {"label":"E", "x":3, "y":0},
+              {"label":"R", "x":4, "y":0},
+              {"label":"T", "x":5, "y":0},
+              {"label":"Y", "x":6, "y":0},
+              {"label":"U", "x":7, "y":0},
+              {"label":"I", "x":8, "y":0},
+              {"label":"O", "x":9, "y":0},
+              {"label":"P", "x":10, "y":0},
+              {"label":"Back<br>Space", "x":11, "y":0},
+              {"label":"7", "x":12.25, "y":0},
+              {"label":"8", "x":13.25, "y":0},
+              {"label":"9", "x":14.25, "y":0},
+              {"label":"Tab", "x":0, "y":1, "w":1.25},
+              {"label":"A", "x":1.25, "y":1},
+              {"label":"S", "x":2.25, "y":1},
+              {"label":"D", "x":3.25, "y":1},
+              {"label":"F", "x":4.25, "y":1},
+              {"label":"G", "x":5.25, "y":1},
+              {"label":"H", "x":6.25, "y":1},
+              {"label":"J", "x":7.25, "y":1},
+              {"label":"K", "x":8.25, "y":1},
+              {"label":"L", "x":9.25, "y":1},
+              {"label":"Enter", "x":10.25, "y":1, "w":1.75},
+              {"label":"4", "x":12.25, "y":1},
+              {"label":"5", "x":13.25, "y":1},
+              {"label":"6", "x":14.25, "y":1},
+              {"label":"Shift", "x":0, "y":2, "w":1.75},
+              {"label":"Z", "x":1.75, "y":2},
+              {"label":"X", "x":2.75, "y":2},
+              {"label":"C", "x":3.75, "y":2},
+              {"label":"V", "x":4.75, "y":2},
+              {"label":"B", "x":5.75, "y":2},
+              {"label":"N", "x":6.75, "y":2},
+              {"label":"M", "x":7.75, "y":2},
+              {"label":"<", "x":8.75, "y":2},
+              {"label":">", "x":9.75, "y":2},
+              {"label":"Fn", "x":10.75, "y":2, "w":1.25},
+              {"label":"1", "x":12.25, "y":2},
+              {"label":"2", "x":13.25, "y":2},
+              {"label":"3", "x":14.25, "y":2},
+              {"label":"Hyper", "x":0, "y":3, "w":1.25},
+              {"label":"Super", "x":1.25, "y":3},
+              {"label":"Meta", "x":2.25, "y":3, "w":1.25},
+              {"label":"Space", "x":3.5, "y":3, "w":2.25},
+              {"label":"Space", "x":5.75, "y":3, "w":2.75},
+              {"label":"Meta", "x":8.5, "y":3, "w":1.25},
+              {"label":"Super", "x":9.75, "y":3},
+              {"label":"Hyper", "x":10.75, "y":3, "w":1.25},
+              {"label":"0", "x":12.25, "y":3},
+              {"label":".", "x":13.25, "y":3},
+              {"label":"Enter", "x":14.25, "y":3}]
+        }
+    }
+}
diff --git a/keyboards/lazydesigners/the50/keymaps/default/keymap.c b/keyboards/lazydesigners/the50/keymaps/default/keymap.c
new file mode 100644
index 0000000000..cba582cab2
--- /dev/null
+++ b/keyboards/lazydesigners/the50/keymaps/default/keymap.c
@@ -0,0 +1,59 @@
+#include QMK_KEYBOARD_H
+
+enum custom_layers {
+  _QWERTY,
+  _FN
+};
+
+// Act as Shift on hold and as CapsLock on tap
+#define SFT_CPS LSFT_T(KC_CAPS)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ *  ,-----------------------------------------------------------. ,--------------.
+ *  |Esc | Q  | W  | E  | R  | T  | Y  | U  | I  | O  | P  |Bspc| | 7  | 8  | 9  |
+ *  |-----------------------------------------------------------| |--------------|
+ *  | Tab  | A  | S  | D  | F  | G  | H  | J  | K  | L  | Enter | | 4  | 5  | 6  |
+ *  |-----------------------------------------------------------| |--------------|
+ *  | Shift  | Z  | X  | C  | V  | B  | N  | M  | ,  | .  | FN  | | 1  | 2  | 3  |
+ *  |-----------------------------------------------------------| |--------------|
+ *  | Ctrl |Gui | Alt  |  Space  |    Space   | RAlt |RGui|RCtrl| | 0  | .  |Entr|
+ *  `-----------------------------------------------------------' `--------------'
+ */
+
+[_QWERTY] = LAYOUT(
+KC_GESC, KC_Q,    KC_W,    KC_E,     KC_R,   KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,     KC_7, KC_8,   KC_9,
+KC_TAB,  KC_A,    KC_S,    KC_D,     KC_F,   KC_G,    KC_H,    KC_J,    KC_K,    KC_L,        KC_ENT,           KC_4, KC_5,   KC_6,
+SFT_CPS, KC_Z,    KC_X,    KC_C,     KC_V,   KC_B,    KC_N,    KC_M,             KC_COMM, KC_DOT,  MO(_FN),     KC_1, KC_2,   KC_3,
+KC_LCTL, KC_LGUI, KC_LALT,       KC_SPC,            KC_SPC,                      KC_RALT, KC_RGUI, KC_RCTL,     KC_0, KC_DOT, KC_ENT
+),
+
+/* FN
+ *  ,-----------------------------------------------------------. ,--------------.
+ *  |RST |    |    |    |    |    |    |    |    |    |Ins |Del | |Home|PgUp|    |
+ *  |-----------------------------------------------------------| |--------------|
+ *  |      |Prev|Play|Next|    |    |    |VolD|Mute|VolU|       | |End |PgDn|    |
+ *  |-----------------------------------------------------------| |--------------|
+ *  |        |    |    |    |    |    |    |    |    |    |     | |    |    |    |
+ *  |-----------------------------------------------------------| |--------------|
+ *  |EEPRST|    |      |         |            |      |    |     | |    |    |    |
+ *  `-----------------------------------------------------------' `--------------'
+ */
+
+[_FN] = LAYOUT(
+RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_INS,   KC_DEL,     KC_HOME, KC_PGUP, _______,
+_______, KC_MPRV, KC_MPLY, KC_MNXT, _______, _______, _______, KC_VOLD, KC_MUTE, KC_VOLU,          _______,     KC_END,  KC_PGDN, _______,
+_______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,     _______, _______, _______,
+EEP_RST, _______, _______,          _______,            _______,                 _______, _______, _______,     _______, _______, _______
+)
+};
+
+void led_set_user(uint8_t usb_led) {
+  // Turn LED On/Off for Caps Lock
+  if (host_keyboard_leds() & (1 << USB_LED_CAPS_LOCK)) {
+    the50_led_on();
+  } else {
+    the50_led_off();
+  }
+}
diff --git a/keyboards/lazydesigners/the50/keymaps/default/readme.md b/keyboards/lazydesigners/the50/keymaps/default/readme.md
new file mode 100644
index 0000000000..09b9351f99
--- /dev/null
+++ b/keyboards/lazydesigners/the50/keymaps/default/readme.md
@@ -0,0 +1,31 @@
+# Default keymap for THE50
+
+**Features**
+
+* Shift acts as CapsLock when tapped
+
+## QWERTY (Normal) Layer
+```
+ ,-----------------------------------------------------------. ,--------------.
+ |Esc | Q  | W  | E  | R  | T  | Y  | U  | I  | O  | P  |Bspc| | 7  | 8  | 9  |
+ |-----------------------------------------------------------| |--------------|
+ | Tab  | A  | S  | D  | F  | G  | H  | J  | K  | L  | Enter | | 4  | 5  | 6  |
+ |-----------------------------------------------------------| |--------------|
+ | Shift  | Z  | X  | C  | V  | B  | N  | M  | ,  | .  | FN  | | 1  | 2  | 3  |
+ |-----------------------------------------------------------| |--------------|
+ | Ctrl |Gui | Alt  |  Space  |    Space   | RAlt |RGui|RCtrl| | 0  | .  |Entr|
+ `-----------------------------------------------------------' `--------------'
+```
+
+## FN Layer
+```
+ ,-----------------------------------------------------------. ,--------------.
+ |RST |    |    |    |    |    |    |    |    |    |Ins |Del | |Home|PgUp|    |
+ |-----------------------------------------------------------| |--------------|
+ |      |Prev|Play|Next|    |    |    |VolD|Mute|VolU|       | |End |PgDn|    |
+ |-----------------------------------------------------------| |--------------|
+ |        |    |    |    |    |    |    |    |    |    |     | |    |    |    |
+ |-----------------------------------------------------------| |--------------|
+ |EEPRST|    |      |         |            |      |    |     | |    |    |    |
+ `-----------------------------------------------------------' `--------------'
+```
diff --git a/keyboards/lazydesigners/the50/readme.md b/keyboards/lazydesigners/the50/readme.md
new file mode 100644
index 0000000000..d90dc59de6
--- /dev/null
+++ b/keyboards/lazydesigners/the50/readme.md
@@ -0,0 +1,17 @@
+# THE50
+
+![THE50](https://i.loli.net/2018/11/13/5beac9464d402.jpg)
+
+A 50% custom keyboard designed and produced by [LazyDesigners](http://lazydesigners.cn).
+
+Keyboard Maintainer: QMK Community  
+Hardware Supported: THE50  
+Hardware Availability: Check for GBs on [Geekhack](https://geekhack.org) and on [LazyDesigner's homepage.](http://lazydesigners.cn)  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make lazydesigners/the50:default:dfu
+
+To enter the bootloader, either short the pins on the PCB or the RESET button on the FN layer.
+
+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/lazydesigners/the50/rules.mk b/keyboards/lazydesigners/the50/rules.mk
new file mode 100644
index 0000000000..ae211ec66e
--- /dev/null
+++ b/keyboards/lazydesigners/the50/rules.mk
@@ -0,0 +1,52 @@
+# 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
+
+BOOTLOADER = atmel-dfu
+
+# 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 = no # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no  # Enable keyboard underlight functionality
diff --git a/keyboards/lazydesigners/the50/the50.c b/keyboards/lazydesigners/the50/the50.c
new file mode 100644
index 0000000000..4ceb3da6ab
--- /dev/null
+++ b/keyboards/lazydesigners/the50/the50.c
@@ -0,0 +1,9 @@
+#include "the50.h"
+
+void the50_led_on() {
+  DDRB |= (1 << 7); PORTB &= ~(1 << 7);
+}
+
+void the50_led_off() {
+  DDRB &= ~(1 << 7); PORTB &= ~(1 << 7);
+}
diff --git a/keyboards/lazydesigners/the50/the50.h b/keyboards/lazydesigners/the50/the50.h
new file mode 100644
index 0000000000..1cf613aada
--- /dev/null
+++ b/keyboards/lazydesigners/the50/the50.h
@@ -0,0 +1,32 @@
+#pragma once
+
+#include "quantum.h"
+
+#define XXXX KC_NO
+
+/*
+ *  ,-----------------------------------------------------------. ,--------------.
+ *  |    |    |    |    |    |    |    |    |    |    |    |    | |    |    |    |
+ *  |-----------------------------------------------------------| |--------------|
+ *  |      |    |    |    |    |    |    |    |    |    |       | |    |    |    |
+ *  |-----------------------------------------------------------| |--------------|
+ *  |        |    |    |    |    |    |    |    |    |    |     | |    |    |    |
+ *  |-----------------------------------------------------------| |--------------|
+ *  |      |    |      |         |             |     |    |     | |    |    |    |
+ *  `-----------------------------------------------------------' `--------------'
+ */
+
+#define LAYOUT( \
+K000, K001, K002, K003, K004, K005, K006, K007, K008, K009, K010, K011, K012, K013, K014, \
+K100, K101, K102, K103, K104, K105, K106, K107, K108, K109,       K111, K112, K113, K114, \
+K200,       K202, K203, K204, K205, K206, K207, K208, K209, K210, K211, K212, K213, K214, \
+K300, K301, K302,       K304,             K307,       K309, K310, K311, K312, K313, K314  \
+) { \
+{ K000,  K001,  K002,  K003,  K004,  K005,  K006,  K007,  K008,  K009,  K010,  K011,  K012,  K013,  K014 }, \
+{ K100,  K101,  K102,  K103,  K104,  K105,  K106,  K107,  K108,  K109,  XXXX,  K111,  K112,  K113,  K114 }, \
+{ K200,  XXXX,  K202,  K203,  K204,  K205,  K206,  K207,  K208,  K209,  K210,  K211,  K212,  K213,  K214 }, \
+{ K300,  K301,  K302,  XXXX,  K304,  XXXX,  XXXX,  K307,  XXXX,  K309,  K310,  K311,  K312,  K313,  K314 }  \
+}
+
+void the50_led_on(void);
+void the50_led_off(void);