Add Lightsaver V3 keyboard

10 files changed, 678 insertions, 0 deletions

diff --git a/keyboards/lightsaver/config.h b/keyboards/lightsaver/config.h
new file mode 100644
index 0000000000..bc984c7e56
--- /dev/null
+++ b/keyboards/lightsaver/config.h
@@ -0,0 +1,54 @@
+/*
+Copyright 2017 Rasmus Schults <rasmusx@gmail.com>
+
+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/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x1337
+#define DEVICE_VER      0x0003
+#define MANUFACTURER    Duck
+#define PRODUCT         Lightsaver V3
+#define DESCRIPTION     Duck Lightsaver V3
+
+/* key matrix size */
+#define MATRIX_ROWS 6
+#define MATRIX_COLS 19
+
+#define DIODE_DIRECTION COL2ROW
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCING_DELAY 5
+
+/* number of backlight levels */
+#define BACKLIGHT_LEVELS 1
+
+/* key combination for magic key command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+#define RGBLIGHT_ANIMATIONS
+#define RGB_DI_PIN D6
+#define RGBLED_NUM 17
+
+#define TAPPING_TERM 200
+
+#endif
diff --git a/keyboards/lightsaver/indicator_leds.c b/keyboards/lightsaver/indicator_leds.c
new file mode 100644
index 0000000000..0a54e151e1
--- /dev/null
+++ b/keyboards/lightsaver/indicator_leds.c
@@ -0,0 +1,91 @@
+/*
+Copyright 2016-2017 Ralf Schmitt <ralf@bunkertor.net> Rasmus Schults <rasmusx@gmail.com>
+
+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 <avr/interrupt.h>
+#include <avr/io.h>
+#include <stdbool.h>
+#include <util/delay.h>
+
+#define T1H  900
+#define T1L  600
+#define T0H  400
+#define T0L  900
+#define RES 6000
+
+#define NS_PER_SEC (1000000000L)
+#define CYCLES_PER_SEC (F_CPU)
+#define NS_PER_CYCLE (NS_PER_SEC / CYCLES_PER_SEC)
+#define NS_TO_CYCLES(n) ((n) / NS_PER_CYCLE)
+
+void send_bit_d4(bool bitVal) {
+  if(bitVal) {
+    asm volatile (
+        "sbi %[port], %[bit] \n\t"
+        ".rept %[onCycles] \n\t"
+        "nop \n\t"
+        ".endr \n\t"
+        "cbi %[port], %[bit] \n\t"
+        ".rept %[offCycles] \n\t"
+        "nop \n\t"
+        ".endr \n\t"
+        ::
+        [port]      "I" (_SFR_IO_ADDR(PORTD)),
+        [bit]       "I" (4),
+        [onCycles]  "I" (NS_TO_CYCLES(T1H) - 2),
+        [offCycles] "I" (NS_TO_CYCLES(T1L) - 2));
+  } else {
+    asm volatile (
+        "sbi %[port], %[bit] \n\t"
+        ".rept %[onCycles] \n\t"
+        "nop \n\t"
+        ".endr \n\t"
+        "cbi %[port], %[bit] \n\t"
+        ".rept %[offCycles] \n\t"
+        "nop \n\t"
+        ".endr \n\t"
+        ::
+        [port]      "I" (_SFR_IO_ADDR(PORTD)),
+        [bit]       "I" (4),
+        [onCycles]  "I" (NS_TO_CYCLES(T0H) - 2),
+        [offCycles] "I" (NS_TO_CYCLES(T0L) - 2));
+  }
+}
+
+void show(void) {
+  _delay_us((RES / 1000UL) + 1);
+}
+
+void send_value(uint8_t byte) {
+  for(uint8_t b = 0; b < 8; b++) {
+    send_bit_d4(byte & 0b10000000);
+    byte <<= 1;
+  }
+}
+
+void send_color(uint8_t r, uint8_t g, uint8_t b) {
+  send_value(g);
+  send_value(r);
+  send_value(b);
+}
+
+void indicator_leds_set(bool leds[8]) {
+  cli();
+  send_color(leds[1] ? 255 : 0, leds[2] ? 255 : 0, leds[0] ? 255 : 0);
+  send_color(leds[4] ? 255 : 0, leds[5] ? 255 : 0, leds[3] ? 255 : 0);
+  send_color(leds[6] ? 255 : 0, leds[7] ? 255 : 0, 0);
+  sei();
+  show();
+}
diff --git a/keyboards/lightsaver/indicator_leds.h b/keyboards/lightsaver/indicator_leds.h
new file mode 100644
index 0000000000..fe66eef6b2
--- /dev/null
+++ b/keyboards/lightsaver/indicator_leds.h
@@ -0,0 +1 @@
+void indicator_leds_set(bool leds[8]);
diff --git a/keyboards/lightsaver/keymaps/default/keymap.c b/keyboards/lightsaver/keymaps/default/keymap.c
new file mode 100644
index 0000000000..fd188bd344
--- /dev/null
+++ b/keyboards/lightsaver/keymaps/default/keymap.c
@@ -0,0 +1,48 @@
+/* Copyright 2017 Rasmus Schults <rasmus.schults@gmail.com>
+ *
+ *
+ * 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 "lightsaver.h"
+
+#define KC_F1GL TD(TD_F1_GAME)
+#define KC_CLFN TD(TD_CAPS_FN)
+
+enum custom_layers {
+    BASE,   // Base QWERTY layer
+    FN = 5, // Function layer
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[BASE] = KEYMAP(\
+      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_NLCK, KC_INS,  KC_HOME, KC_PGUP, KC_PSLS, \
+      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_END,  KC_PGDN, KC_PAST, \
+      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_P7,   KC_P8,   KC_P9,   KC_PMNS, \
+      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_P4,   KC_P5,   KC_P6,   KC_PPLS, \
+      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_P1,   KC_P2,   KC_P3,   KC_PENT, \
+      KC_LCTL,  KC_LGUI, KC_LALT,                                              KC_SPC,                    KC_RALT, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT, KC_P0,   KC_PDOT), \
+
+[FN] = KEYMAP(\
+      _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_PAUS, KC_SLCK, RGB_TOG, RGB_MOD, _______, _______,  \
+      _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          KC_CAPS, BL_TOGG, _______, _______, _______,  \
+      _______,  _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END,  _______, _______, _______,          _______, _______, _______, _______, _______,  \
+      _______,  _______, _______, _______, _______, _______, KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______, _______,                   _______, _______, _______, _______, _______,  \
+      _______,           _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, RESET,  \
+      _______,  _______, _______,                                              _______,                   _______, _______, _______, _______, _______, _______, _______ ), \
+
+};
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {
+  return MACRO_NONE;
+};
diff --git a/keyboards/lightsaver/keymaps/default/readme.md b/keyboards/lightsaver/keymaps/default/readme.md
new file mode 100644
index 0000000000..3e02a29cfa
--- /dev/null
+++ b/keyboards/lightsaver/keymaps/default/readme.md
@@ -0,0 +1,9 @@
+![Lightsaver Layout Image](https://i.imgur.com/kSyGao4.png)
+
+# Default Lightsaver Layout
+
+This is the default implement layout for Duck Lightsaver V3.
+
+## FN layer
+
+![Lightsaver Layout Image](https://i.imgur.com/8jIGy6o.png)
diff --git a/keyboards/lightsaver/lightsaver.c b/keyboards/lightsaver/lightsaver.c
new file mode 100644
index 0000000000..75e35b28b2
--- /dev/null
+++ b/keyboards/lightsaver/lightsaver.c
@@ -0,0 +1,60 @@
+/* Copyright 2017 Rasmus Schults <rasmusx@gmail.com>
+ *
+ * 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 "lightsaver.h"
+#include "indicator_leds.h"
+
+enum BACKLIGHT_AREAS {
+  BACKLIGHT_ALPHAS = 0b00000010, // Alpha keys
+  BACKLIGHT_FKEYS =  0b00000100, // Function row keys
+  BACKLIGHT_MODNUM = 0b00001000, // Modifiers and number row
+  BACKLIGHT_NUMPAD = 0b01000000  // Numpad area
+};
+
+void backlight_set(uint8_t level) {
+  if (level > 0) {
+    // Turn on leds
+    PORTB &= ~BACKLIGHT_ALPHAS;
+    PORTB &= ~BACKLIGHT_FKEYS;
+    PORTB &= ~BACKLIGHT_MODNUM;
+    PORTE &= ~BACKLIGHT_NUMPAD;
+  } else {
+    // Turn off leds
+    PORTB |= BACKLIGHT_ALPHAS;
+    PORTB |= BACKLIGHT_FKEYS;
+    PORTB |= BACKLIGHT_MODNUM;
+    PORTE |= BACKLIGHT_NUMPAD;
+  }
+}
+
+void led_set_kb(uint8_t usb_led) {
+  bool leds[8] = {
+    usb_led & (1<<USB_LED_CAPS_LOCK),
+    usb_led & (1<<USB_LED_SCROLL_LOCK),
+    usb_led & (1<<USB_LED_NUM_LOCK),
+    layer_state & (1<<1),
+    layer_state & (1<<2),
+    layer_state & (1<<3),
+    layer_state & (1<<4),
+    layer_state & (1<<5)
+  };
+  indicator_leds_set(leds);
+
+  led_set_user(usb_led);
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+  return process_record_user(keycode, record);
+}
diff --git a/keyboards/lightsaver/lightsaver.h b/keyboards/lightsaver/lightsaver.h
new file mode 100644
index 0000000000..5b80dbabb6
--- /dev/null
+++ b/keyboards/lightsaver/lightsaver.h
@@ -0,0 +1,40 @@
+/* Copyright 2017 Rasmus Schults <rasmusx@gmail.com>
+ *
+ * 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/>.
+ */
+#ifndef LIGHTSAVER_H
+#define LIGHTSAVER_H
+
+#include "quantum.h"
+
+#define NO KC_NO
+
+#define KEYMAP( \
+    K5A, K5B, K5C, K5D, K5E, K5F, K5G, K5H, K5I, K5J, K5K, K5L, K5M, K5N, K5O,   K5P, K5Q, K5R, K5S, \
+    K4A, K4B, K4C, K4D, K4E, K4F, K4G, K4H, K4I, K4J, K4K, K4L, K4M,      K4O,   K4P, K4Q, K4R, K4S, \
+    K3A, K3B, K3C, K3D, K3E, K3F, K3G, K3H, K3I, K3J, K3K, K3L, K3M,      K3O,   K3P, K3Q, K3R, K3S, \
+    K2A, K2B, K2C, K2D, K2E, K2F, K2G, K2H, K2I, K2J, K2K, K2L,           K2O,   K2P, K2Q, K2R, K2S, \
+    K1A,      K1C, K1D, K1E, K1F, K1G, K1H, K1I, K1J, K1K,      K1M, K1N, K1O,   K1P, K1Q, K1R, K1S, \
+    K0A, K0B, K0C,                          K0I,      K0K,      K0M, K0N, K0O,   K0P, K0Q, K0R \
+) { \
+/*           0    1    2    3    4    5    6    7    8    9    10   11   12   13   14     15   16   17   18  */ \
+/* 0 */   { K5A, K5B, K5C, K5D, K5E, K5F, K5G, K5H, K5I, K5J, K5K, K5L, K5M, K5N, K5O,   K5P, K5Q, K5R, K5S, }, \
+/* 1 */   { K4A, K4B, K4C, K4D, K4E, K4F, K4G, K4H, K4I, K4J, K4K, K4L, K4M, NO,  K4O,   K4P, K4Q, K4R, K4S, }, \
+/* 2 */   { K3A, K3B, K3C, K3D, K3E, K3F, K3G, K3H, K3I, K3J, K3K, K3L, K3M, NO,  K3O,   K3P, K3Q, K3R, K3S, }, \
+/* 3 */   { K2A, K2B, K2C, K2D, K2E, K2F, K2G, K2H, K2I, K2J, K2K, K2L, NO,  NO,  K2O,   K2P, K2Q, K2R, K2S, }, \
+/* 4 */   { K1A, NO,  K1C, K1D, K1E, K1F, K1G, K1H, K1I, K1J, K1K, NO,  K1M, K1N, K1O,   K1P, K1Q, K1R, K1S, }, \
+/* 5 */   { K0A, K0B, K0C, NO,  NO,  NO,  NO,  NO,  K0I, NO,  K0K, NO,  K0M, K0N, K0O,   K0P, K0Q, K0R } \
+}
+
+#endif
diff --git a/keyboards/lightsaver/matrix.c b/keyboards/lightsaver/matrix.c
new file mode 100644
index 0000000000..cb7b38fd4b
--- /dev/null
+++ b/keyboards/lightsaver/matrix.c
@@ -0,0 +1,284 @@
+/*
+Copyright 2016-2017 Ralf Schmitt <ralf@bunkertor.net> Rasmus Schults <rasmusx@gmail.com>
+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 <util/delay.h>
+#include <avr/io.h>
+#include <stdio.h>
+#include "matrix.h"
+#include "util.h"
+#include "print.h"
+#include "debug.h"
+
+static uint8_t debouncing = DEBOUNCING_DELAY;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static uint8_t read_rows(void);
+static uint8_t read_fwkey(void);
+static void init_rows(void);
+static void unselect_cols(void);
+static void select_col(uint8_t col);
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+    matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+    matrix_scan_kb();
+}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+void matrix_init(void) {
+  DDRD  |=  0b11010000;
+  PORTD &= ~0b01010000;
+  DDRB  |=  0b00011111;
+  PORTB &= ~0b00001110;
+  PORTB |=  0b00010001;
+  DDRE  |=  0b01000000;
+  PORTE &= ~0b01000000;
+
+  unselect_cols();
+  init_rows();
+
+  for (uint8_t i=0; i < MATRIX_ROWS; i++)  {
+    matrix[i] = 0;
+    matrix_debouncing[i] = 0;
+  }
+
+  matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void) {
+  for (uint8_t col = 0; col < MATRIX_COLS; col++) {
+    select_col(col);
+    _delay_us(3);
+
+    uint8_t rows = read_rows();
+    if(col == 0) {
+      rows |= read_fwkey();
+    }
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+      bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col);
+      bool curr_bit = rows & (1<<row);
+      if (prev_bit != curr_bit) {
+        matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
+        debouncing = DEBOUNCING_DELAY;
+      }
+    }
+    unselect_cols();
+  }
+
+  if (debouncing) {
+    if (--debouncing) {
+      _delay_ms(1);
+    } else {
+      for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        matrix[i] = matrix_debouncing[i];
+      }
+    }
+  }
+
+  matrix_scan_quantum();
+  return 1;
+}
+
+inline matrix_row_t matrix_get_row(uint8_t row) {
+  return matrix[row];
+}
+
+void matrix_print(void) {
+  print("\nr/c 0123456789ABCDEF\n");
+  for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+    xprintf("%02X: %032lb\n", row, bitrev32(matrix_get_row(row)));
+  }
+}
+
+/* Row pin configuration
+ * row: 0    1    2    3    4    5
+ * pin: PB7  PD0  PD1  PD2  PD3  PD5
+ *
+ * Esc uses its own pin PE2
+ */
+static void init_rows(void) {
+  DDRB  &= ~0b10000000;
+  PORTB &= ~0b10000000;
+
+  DDRD  &= ~0b00101111;
+  PORTD &= ~0b00101111;
+
+  DDRE  &= ~0b00000100;
+  PORTE |=  0b00000100;
+}
+
+static uint8_t read_rows() {
+  return (PINB&(1<<7) ? (1<<0) : 0) |
+    (PIND&(1<<0) ? (1<<1) : 0) |
+    (PIND&(1<<1) ? (1<<2) : 0) |
+    (PIND&(1<<2) ? (1<<3) : 0) |
+    (PIND&(1<<3) ? (1<<4) : 0) |
+    (PIND&(1<<5) ? (1<<5) : 0);
+}
+
+static uint8_t read_fwkey(void)
+{
+  return PINE&(1<<2) ? 0 : (1<<0);
+}
+
+/* Columns 0 - 15
+ * These columns uses two 74HC237D 3 to 8 bit demultiplexers.
+ * col / pin:    PC6  PB6  PF0  PF1  PC7
+ * 0:             1    0    0    0    0
+ * 1:             1    0    1    0    0
+ * 2:             1    0    0    1    0
+ * 3:             1    0    1    1    0
+ * 4:             1    0    0    0    1
+ * 5:             1    0    1    0    1
+ * 6:             1    0    0    1    1
+ * 7:             1    0    1    1    1
+ * 8:             0    1    0    0    0
+ * 9:             0    1    1    0    0
+ * 10:            0    1    0    1    0
+ * 11:            0    1    1    1    0
+ * 12:            0    1    0    0    1
+ * 13:            0    1    1    0    1
+ * 14:            0    1    0    1    1
+ * 15:            0    1    1    1    1
+ *
+ * col: 16
+ * pin: PB5
+ *
+ * col: 17
+ * pin: PB4
+ *
+ * col: 18
+ * pin: PD7
+ */
+static void unselect_cols(void) {
+  DDRB  |=  0b01110000;
+  PORTB &= ~0b01110000;
+
+  DDRC |= (1<<6) | (1<<7);
+  PORTC &= ~((1<<6) | (1<<7));
+
+  DDRF |= (1<<0) | (1<<1);
+  PORTF &= ~((1<<0) | (1<<1));
+
+  DDRD |= (1<<7);
+  PORTD &= ~(1<<7);
+}
+
+static void select_col(uint8_t col) {
+  switch (col) {
+    case 0:
+      PORTC |= (1<<6);
+      break;
+    case 1:
+      PORTC |= (1<<6);
+      PORTF |= (1<<0);
+      break;
+    case 2:
+      PORTC |= (1<<6);
+      PORTF |= (1<<1);
+      break;
+    case 3:
+      PORTC |= (1<<6);
+      PORTF |= (1<<0) | (1<<1);
+      break;
+    case 4:
+      PORTC |= (1<<6);
+      PORTC |= (1<<7);
+      break;
+    case 5:
+      PORTC |= (1<<6);
+      PORTF |= (1<<0);
+      PORTC |= (1<<7);
+      break;
+    case 6:
+      PORTC |= (1<<6);
+      PORTF |= (1<<1);
+      PORTC |= (1<<7);
+      break;
+    case 7:
+      PORTC |= (1<<6);
+      PORTF |= (1<<0) | (1<<1);
+      PORTC |= (1<<7);
+      break;
+    case 8:
+      PORTB |= (1<<6);
+      break;
+    case 9:
+      PORTB |= (1<<6);
+      PORTF |= (1<<0);
+      break;
+    case 10:
+      PORTB |= (1<<6);
+      PORTF |= (1<<1);
+      break;
+    case 11:
+      PORTB |= (1<<6);
+      PORTF |= (1<<0) | (1<<1);
+      break;
+    case 12:
+      PORTB |= (1<<6);
+      PORTC |= (1<<7);
+      break;
+    case 13:
+      PORTB |= (1<<6);
+      PORTF |= (1<<0);
+      PORTC |= (1<<7);
+      break;
+    case 14:
+      PORTB |= (1<<6);
+      PORTF |= (1<<1);
+      PORTC |= (1<<7);
+      break;
+    case 15:
+      PORTB |= (1<<6);
+      PORTF |= (1<<0) | (1<<1);
+      PORTC |= (1<<7);
+      break;
+    case 16:
+      PORTB |= (1<<5);
+      break;
+    case 17:
+      PORTB |= (1<<4);
+      break;
+    case 18:
+      PORTD |= (1<<7);
+      break;
+  }
+}
diff --git a/keyboards/lightsaver/readme.md b/keyboards/lightsaver/readme.md
new file mode 100644
index 0000000000..9d4b453c0d
--- /dev/null
+++ b/keyboards/lightsaver/readme.md
@@ -0,0 +1,19 @@
+# Duck Lightsaver V3
+
+![Lightsaver V3](https://i.imgur.com/Vz23Dkel.jpg)
+
+Non official firmware for custom Korean keyboard with 96 key layout made by Duck.  
+Group buy was run 2017 May via [geekhack](https://geekhack.org/index.php?topic=89546.0) and limited to 100 units.
+
+Keyboard Maintainer: [Rasmus Schults](https://github.com/rasmusx)  
+Hardware Supported: Lightsaver PCB Ver 3.0, Atmega32u4  
+Hardware Availability: [geekhack](https://geekhack.org/index.php?topic=89546.0)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make lightsaver: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.
+
+## Notes
+Thanks to Ralf Schmitt for previous implementations in his [TMK fork](https://github.com/xauser/tmk_keyboard/tree/xauser/) and few helping words.
diff --git a/keyboards/lightsaver/rules.mk b/keyboards/lightsaver/rules.mk
new file mode 100644
index 0000000000..d95dbd9603
--- /dev/null
+++ b/keyboards/lightsaver/rules.mk
@@ -0,0 +1,72 @@
+# 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*
+#   Teensy halfKay   512
+#   Teensy++ halfKay 1024
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+#   USBaspLoader     2048
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE ?= no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE ?= no        # Mouse keys(+4700)
+EXTRAKEY_ENABLE ?= no        # Audio control and System control(+450)
+CONSOLE_ENABLE ?= no         # Console for debug(+400)
+COMMAND_ENABLE ?= yes        # 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 ?= yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE ?= yes      # Enable keyboard backlight functionality on B7 by default
+MIDI_ENABLE ?= no            # MIDI support (+2400 to 4200, depending on config)
+UNICODE_ENABLE ?= no         # Unicode
+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
+RGBLIGHT_ENABLE = yes
+
+CUSTOM_MATRIX = yes
+SRC += indicator_leds.c \
+			 matrix.c