1 files changed, 204 insertions, 0 deletions

diff --git a/keyboards/pegasushoof/matrix.c b/keyboards/pegasushoof/matrix.c
new file mode 100644
index 000000000..d2a74b8d7
--- /dev/null
+++ b/keyboards/pegasushoof/matrix.c
@@ -0,0 +1,204 @@
+/*
+Copyright 2014 Ralf Schmitt <ralf@bunkertor.net>
+Copyright 2016 Daniel Svensson <dsvensson@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 <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+
+static uint8_t debouncing = DEBOUNCING_DELAY;
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static matrix_row_t read_cols(void);
+static void select_row(uint8_t col);
+
+inline uint8_t matrix_rows(void)
+{
+        return MATRIX_ROWS;
+}
+
+inline uint8_t matrix_cols(void)
+{
+        return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+        /* Column output pins */
+        DDRD  |=  0b01111011;
+        /* Row input pins */
+        DDRC  &= ~0b10000000;
+        DDRB  &= ~0b01111111;
+        PORTC |=  0b10000000;
+        PORTB |=  0b01111111;
+
+        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_row(col);
+                wait_us(30);
+                matrix_row_t rows = read_cols();
+                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;
+                        }
+                }
+        }
+
+        if (debouncing) {
+                if (--debouncing) {
+                        wait_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] & 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++) {
+                phex(row); print(": ");
+                pbin_reverse16(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_cols(void)
+{
+        return
+                (PINB & (1 << 5) ? 0 : 1 << 0) |
+                (PINC & (1 << 7) ? 0 : 1 << 1) |
+                (PINB & (1 << 4) ? 0 : 1 << 2) |
+                (PINB & (1 << 6) ? 0 : 1 << 3) |
+                (PINB & (1 << 1) ? 0 : 1 << 4) |
+                (PINB & (1 << 0) ? 0 : 1 << 5) |
+                (PINB & (1 << 3) ? 0 : 1 << 6) |
+                (PINB & (1 << 2) ? 0 : 1 << 7);
+}
+
+static void select_row(uint8_t col)
+{
+        switch (col) {
+                case 0:
+                        PORTD = (PORTD & ~0b01111011) | 0b00110011;
+                        break;
+                case 1:
+                        PORTD = (PORTD & ~0b01111011) | 0b01110000;
+                        break;
+                case 2:
+                        PORTD = (PORTD & ~0b01111011) | 0b00010011;
+                        break;
+                case 3:
+                        PORTD = (PORTD & ~0b01111011) | 0b01101000;
+                        break;
+                case 4:
+                        PORTD = (PORTD & ~0b01111011) | 0b00001011;
+                        break;
+                case 5:
+                        PORTD = (PORTD & ~0b01111011) | 0b00111011;
+                        break;
+                case 6:
+                        PORTD = (PORTD & ~0b01111011) | 0b01111000;
+                        break;
+                case 7:
+                        PORTD = (PORTD & ~0b01111011) | 0b01100001;
+                        break;
+                case 8:
+                        PORTD = (PORTD & ~0b01111011) | 0b01101001;
+                        break;
+                case 9:
+                        PORTD = (PORTD & ~0b01111011) | 0b01110001;
+                        break;
+                case 10:
+                        PORTD = (PORTD & ~0b01111011) | 0b01101010;
+                        break;
+                case 11:
+                        PORTD = (PORTD & ~0b01111011) | 0b01100010;
+                        break;
+                case 12:
+                        PORTD = (PORTD & ~0b01111011) | 0b01111001;
+                        break;
+                case 13:
+                        PORTD = (PORTD & ~0b01111011) | 0b01100000;
+                        break;
+                case 14:
+                        PORTD = (PORTD & ~0b01111011) | 0b01000011;
+                        break;
+                case 15:
+                        PORTD = (PORTD & ~0b01111011) | 0b00011011;
+                        break;
+                case 16:
+                        PORTD = (PORTD & ~0b01111011) | 0b00100011;
+                        break;
+                case 17:
+                        PORTD = (PORTD & ~0b01111011) | 0b00101011;
+                        break;
+        }
+}