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diff --git a/keyboards/kinesis/alvicstep/matrix.c b/keyboards/kinesis/alvicstep/matrix.c
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+/*
+Copyright 2014 Warren Janssens <warren.janssens@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/>.
+*/
+
+/*
+ * scan matrix
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "action_layer.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "led.h"
+#include "config.h"
+
+#ifndef DEBOUNCE
+# define DEBOUNCE 5
+#endif
+static uint8_t debouncing = DEBOUNCE;
+
+/* matrix state(1:on, 0:off) */
+static uint8_t matrix[MATRIX_ROWS];
+static uint8_t matrix_debouncing[MATRIX_ROWS];
+
+static matrix_row_t read_row(uint8_t row);
+static void unselect_rows(void);
+static void select_rows(uint8_t row);
+
+__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) {
+}
+
+inline
+uint8_t matrix_rows(void)
+{
+ return MATRIX_ROWS;
+}
+
+
+inline
+uint8_t matrix_cols(void)
+{
+ return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+ //debug_enable = true;
+
+ //dprint("matrix_init"); dprintln();
+ // output high (leds)
+ DDRD = 0xFF;
+ PORTD = 0xFF;
+
+ // output low (multiplexers)
+ DDRF = 0xFF;
+ PORTF = 0x00;
+
+ // input with pullup (matrix)
+ DDRB = 0x00;
+ PORTB = 0xFF;
+
+ // input with pullup (program and keypad buttons)
+ DDRC = 0x00;
+ PORTC = 0xFF;
+
+ // initialize row and col
+ unselect_rows();
+
+ // initialize matrix state: all keys off
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+ matrix[i] = 0;
+ matrix_debouncing[i] = 0;
+ }
+
+}
+
+uint8_t matrix_scan(void)
+{
+
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ select_rows(i);
+ uint8_t row = read_row(i);
+ if (matrix_debouncing[i] != row) {
+ matrix_debouncing[i] = row;
+ if (debouncing) {
+ debug("bounce!: "); debug_hex(debouncing); debug("\n");
+ }
+ debouncing = DEBOUNCE;
+ }
+ unselect_rows();
+ }
+
+ 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;
+}
+
+bool matrix_is_modified(void)
+{
+ if (debouncing) return false;
+ return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+ return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+ return matrix[row];
+}
+
+void matrix_print(void)
+{
+ print("\nr/c 01234567\n");
+ for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+ phex(row); print(": ");
+ pbin_reverse(matrix_get_row(row));
+ print("\n");
+ }
+}
+
+uint8_t matrix_key_count(void)
+{
+ uint8_t count = 0;
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ count += bitpop16(matrix[i]);
+ }
+ return count;
+}
+
+static matrix_row_t read_row(uint8_t row)
+{
+ _delay_us(30); // without this wait read unstable value.
+
+ //keypad and program buttons
+ if (row == 12)
+ {
+ return ~(PINC | 0b00111111);
+ }
+ return ~PINB;
+}
+
+static void unselect_rows(void)
+{
+ // set A,B,C,G to 0 (F4 - F7)
+ PORTF &= 0x0F;
+}
+
+static void select_rows(uint8_t row)
+{
+ // set A,B,C,G to row value
+ PORTF |= row << 4;
+}
+
+
+/* Row pin configuration
+PF0 A
+PF1 B
+PF2 C
+PF3 G 0 = U4, 1 = U5
+
+ 4y0 4y1 4y2 4y3 4y4 4y5 4y6 4y7 5y0 5y1 5y2 5y3 5y4 5y5 5y6 5y7
+ r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 r11 r12 r13 r14 r15 r16
+PB0 21 c1 f6 f8 f7 5 4 3 2 1 =+
+PB1 22 c2 f3 f5 f4 t r e w q TAB
+PB2 23 c3 ESC f2 f1 g f d s a CL
+PB3 24 c4 f9 f11 f10 b v c x z LS UP DN [{ ]}
+PB4 25 c5 f12 SL PS RT LT §± `~ 6 7 8 9 0 -_
+PB5 26 c6 PB PGM KPD y u i o p \
+PB6 27 c7 LC DL BS RC EN SP h j k l ;: '"
+PB7 28 c8 RA PU PD n m ,< .> /? RS
+ */
+
+