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-rw-r--r--keyboards/duck/jetfire/matrix.c277
1 files changed, 277 insertions, 0 deletions
diff --git a/keyboards/duck/jetfire/matrix.c b/keyboards/duck/jetfire/matrix.c
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+++ b/keyboards/duck/jetfire/matrix.c
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+/*
+Copyright 2016 Ralf Schmitt <ralf@bunkertor.net>
+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 = DEBOUNCING_DELAY;
+
+/* 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 = DEBOUNCING_DELAY;
+ }
+ }
+ 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