1 files changed, 277 insertions, 0 deletions

diff --git a/keyboards/duck/jetfire/matrix.c b/keyboards/duck/jetfire/matrix.c
new file mode 100644
index 000000000..2dd94a72a
--- /dev/null
+++ b/keyboards/duck/jetfire/matrix.c
@@ -0,0 +1,277 @@
+/*
+Copyright 2016 Ralf Schmitt <[email protected]>
+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 <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+
+static uint8_t debouncing = DEBOUNCE;
+
+/* 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(uint8_t col);
+static void init_ports(void);
+static void unselect_cols(void);
+static void select_col(uint8_t col);
+
+__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 backlight_init_ports(void)
+{
+  DDRD  |=  0b01010000;
+  PORTD &=  0b10101111;
+  DDRB  |=  0b00001110;
+  PORTB &=  0b11110001;
+  DDRE  |=  0b01000000;
+  PORTE &=  0b10111111;
+}
+
+void matrix_init(void)
+{
+    backlight_init_ports();
+    unselect_cols();
+    init_ports();
+    for (uint8_t i=0; i < MATRIX_ROWS; i++)  {
+        matrix[i] = 0;
+        matrix_debouncing[i] = 0;
+    }
+}
+
+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(col);
+        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);
+                if (debouncing) {
+                    dprint("bounce!: "); dprintf("%02X", debouncing); dprintln();
+                }
+                debouncing = DEBOUNCE;
+            }
+        }
+        unselect_cols();
+    }
+
+    if (debouncing) {
+        if (--debouncing) {
+            _delay_ms(1);
+        } else {
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+                matrix[i] = matrix_debouncing[i];
+            }
+        }
+    }
+
+    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 0123456789ABCDEF\n");
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        xprintf("%02X: %032lb\n", row, bitrev32(matrix_get_row(row)));
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += bitpop32(matrix[i]);
+    }
+    return count;
+}
+
+static void init_ports(void)
+{
+    // Rows are inputs (inputs are 0)
+    DDRD  &= 0b11010000;
+    DDRB  &= 0b01111111;
+    DDRE  &= 0b11111011;
+
+    // Columns are outputs (outputs are high)
+    DDRF  |= 0b00000011;
+    DDRC  |= 0b11000000;
+    DDRB  |= 0b01110001;
+    DDRD  |= 0b10000000;
+}
+
+static uint8_t read_rows(uint8_t col)
+{
+  if(col == 15) {
+    return (PINE&(1<<2) ? 0 : (1<<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);
+
+  } else {
+    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 void unselect_cols(void)
+{
+    PORTF &= 0b11111100;
+    PORTC &= 0b00111111;
+    PORTB &= 0b10001110;
+    PORTD &= 0b01111111;
+}
+
+static void select_col(uint8_t col)
+{
+    switch (col) {
+        case 0:
+            PORTC |= 0b01000000;
+            break;
+        case 1:
+            PORTC |= 0b01000000;
+            PORTF |= 0b00000001;
+            break;
+        case 2:
+            PORTC |= 0b01000000;
+            PORTF |= 0b00000010;
+            break;
+        case 3:
+            PORTC |= 0b01000000;
+            PORTF |= 0b00000011;
+            break;
+        case 4:
+            PORTC |= 0b11000000;
+            break;
+        case 5:
+            PORTC |= 0b11000000;
+            PORTF |= 0b00000001;
+            break;
+        case 6:
+            PORTC |= 0b11000000;
+            PORTF |= 0b00000010;
+            break;
+        case 7:
+            PORTC |= 0b11000000;
+            PORTF |= 0b00000011;
+            break;
+        case 8:
+            PORTB |= 0b01000000;
+            break;
+        case 9:
+            PORTB |= 0b01000000;
+            PORTF |= 0b00000001;
+            break;
+        case 10:
+            PORTB |= 0b01000000;
+            PORTF |= 0b00000010;
+            break;
+        case 11:
+            PORTB |= 0b01000000;
+            PORTF |= 0b00000011;
+            break;
+        case 12:
+            PORTB |= 0b01000000;
+            PORTC |= 0b10000000;
+            break;
+        case 13:
+            PORTB |= 0b01000000;
+            PORTF |= 0b00000001;
+            PORTC |= 0b10000000;
+            break;
+        case 14:
+            PORTB |= 0b01000000;
+            PORTF |= 0b00000010;
+            PORTC |= 0b10000000;
+            break;
+        case 15:
+            PORTB |= 0b01000000;
+            PORTF |= 0b00000011;
+            PORTC |= 0b10000000;
+            break;
+        case 16:
+            PORTB |= 0b00100000;
+            break;
+        case 17:
+            PORTB |= 0b00010000;
+            break;
+        case 18:
+            PORTD |= 0b10000000;
+            break;
+        case 19:
+            PORTB |= 0b00000001;
+            break;
+    }
+}
\ No newline at end of file