Merge branch 'master' of https://github.com/qmk/qmk_firmware

1 files changed, 145 insertions, 0 deletions

diff --git a/keyboards/panc60/matrix.c b/keyboards/panc60/matrix.c
new file mode 100644
index 000000000..cf0f63837
--- /dev/null
+++ b/keyboards/panc60/matrix.c
@@ -0,0 +1,145 @@
+/*
+Copyright 2018 Jack Humbert <jack.humb@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/io.h>
+#include <util/delay.h>
+#include <string.h>
+#include "matrix.h"
+
+#ifndef DEBOUNCE
+#   define DEBOUNCE	5
+#endif
+
+__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) { }
+
+// #define MATRIX_ROW_PINS { B3, B4, B5, B6, B7 }
+// #define MATRIX_COL_PINS { A0, A1, A2, A3, A4, A5, A6, A7, C7, C6, C5, C4, C3, C2, D7 }
+
+static uint8_t debouncing = DEBOUNCE;
+
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+void matrix_init(void) {
+
+    // disables JTAG so we can use them as columns
+    MCUCSR = (1<<JTD);
+    MCUCSR = (1<<JTD);
+
+    // rows (output)
+    DDRB |= ((1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
+    PORTB |= ((1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
+
+    // cols (input)
+    DDRA &= ~((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
+    DDRC &= ~((1 << 7) | (1 << 6) | (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2));
+    DDRD &= ~((1 << 7));
+
+    // pull-up cols
+    PORTA |= ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
+    PORTC |= ((1 << 7) | (1 << 6) | (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2));
+    PORTD |= ((1 << 7));
+
+    // initialize matrix state: all keys off
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        matrix[row] = 0x00;
+        matrix_debouncing[row] = 0x00;
+    }
+
+    matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void) {
+
+    // actual matrix scan
+    for (uint8_t c = 0; c < MATRIX_ROWS; c++) {
+        switch (c) {
+          case 0:  PORTB &= ~(1 << 3); break;
+          case 1:  PORTB &= ~(1 << 4); break;
+          case 2:  PORTB &= ~(1 << 5); break;
+          case 3:  PORTB &= ~(1 << 6); break;
+          case 4:  PORTB &= ~(1 << 7); break;
+        }
+        _delay_us(5);
+
+        matrix_row_t current_row = (
+          (((PINA & (1 << 0)) ? 0 : 1 ) << 0)  |
+          (((PINA & (1 << 1)) ? 0 : 1 ) << 1)  |
+          (((PINA & (1 << 2)) ? 0 : 1 ) << 2)  |
+          (((PINA & (1 << 3)) ? 0 : 1 ) << 3)  |
+          (((PINA & (1 << 4)) ? 0 : 1 ) << 4)  |
+          (((PINA & (1 << 5)) ? 0 : 1 ) << 5)  |
+          (((PINA & (1 << 6)) ? 0 : 1 ) << 6)  |
+          (((PINA & (1 << 7)) ? 0 : 1 ) << 7)  |
+          (((PINC & (1 << 7)) ? 0 : 1 ) << 8)  |
+          (((PINC & (1 << 6)) ? 0 : 1 ) << 9)  |
+          (((PINC & (1 << 5)) ? 0 : 1 ) << 10) |
+          (((PINC & (1 << 4)) ? 0 : 1 ) << 11) |
+          (((PINC & (1 << 3)) ? 0 : 1 ) << 12) |
+          (((PINC & (1 << 2)) ? 0 : 1 ) << 13) |
+          (((PIND & (1 << 7)) ? 0 : 1 ) << 14)
+        );
+
+        switch (c) {
+          case 0:  PORTB |= (1 << 3); break;
+          case 1:  PORTB |= (1 << 4); break;
+          case 2:  PORTB |= (1 << 5); break;
+          case 3:  PORTB |= (1 << 6); break;
+          case 4:  PORTB |= (1 << 7); break;
+        }
+
+        if (matrix_debouncing[c] != current_row) {
+            matrix_debouncing[c] = current_row;
+            debouncing = DEBOUNCE;
+        }
+    }
+
+    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) {
+}