1 files changed, 228 insertions, 0 deletions

diff --git a/keyboards/kinesis/alvicstep/matrix.c b/keyboards/kinesis/alvicstep/matrix.c
new file mode 100644
index 000000000..cb0d5ad7d
--- /dev/null
+++ b/keyboards/kinesis/alvicstep/matrix.c
@@ -0,0 +1,228 @@
+/*
+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      
+ */
+
+