--- /dev/null
+/*
+Copyright 2012 Jun Wako
+Generated by planckkeyboard.com (2014 Jack Humbert)
+
+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 "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "backlight.h" // TODO fix this dependency
+
+#ifndef DEBOUNCE
+# define DEBOUNCE 10
+#endif
+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 matrix_row_t read_cols(void);
+static void init_cols(void);
+static void unselect_rows(void);
+static void select_row(uint8_t row);
+
+inline
+uint8_t matrix_rows(void)
+{
+ return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+ return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+ // To use PORTF disable JTAG with writing JTD bit twice within four cycles.
+ MCUCR |= (1<<JTD);
+ MCUCR |= (1<<JTD);
+
+ backlight_init_ports();
+
+ // Turn status LED on
+ DDRE |= (1<<6);
+ PORTE |= (1<<6);
+
+ // initialize row and col
+ unselect_rows();
+ init_cols();
+
+ // 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_row(i);
+ _delay_us(30); // without this wait read unstable value.
+ matrix_row_t cols = read_cols();
+ if (matrix_debouncing[i] != cols) {
+ matrix_debouncing[i] = cols;
+ 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];
+ }
+ }
+ }
+
+ 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++) {
+ 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 void init_cols(void)
+{
+ int B = 0, C = 0, D = 0, E = 0, F = 0;
+ for(int x = 0; x < MATRIX_COLS; x++) {
+ int col = COLS[x];
+ if ((col & 0xF0) == 0x20) {
+ B |= (1<<(col & 0x0F));
+ } else if ((col & 0xF0) == 0x30) {
+ C |= (1<<(col & 0x0F));
+ } else if ((col & 0xF0) == 0x40) {
+ D |= (1<<(col & 0x0F));
+ } else if ((col & 0xF0) == 0x50) {
+ E |= (1<<(col & 0x0F));
+ } else if ((col & 0xF0) == 0x60) {
+ F |= (1<<(col & 0x0F));
+ }
+ }
+ DDRB &= ~(B); PORTB |= (B);
+ DDRC &= ~(C); PORTC |= (C);
+ DDRD &= ~(D); PORTD |= (D);
+ DDRE &= ~(E); PORTE |= (E);
+ DDRF &= ~(F); PORTF |= (F);
+}
+
+static matrix_row_t read_cols(void)
+{
+ matrix_row_t result = 0;
+ for(int x = 0; x < MATRIX_COLS; x++) {
+ int col = COLS[x];
+ if ((col & 0xF0) == 0x20) {
+ result |= (PINB&(1<<(col & 0x0F)) ? 0 : (1<<x));
+ } else if ((col & 0xF0) == 0x30) {
+ result |= (PINC&(1<<(col & 0x0F)) ? 0 : (1<<x));
+ } else if ((col & 0xF0) == 0x40) {
+ result |= (PIND&(1<<(col & 0x0F)) ? 0 : (1<<x));
+ } else if ((col & 0xF0) == 0x50) {
+ result |= (PINE&(1<<(col & 0x0F)) ? 0 : (1<<x));
+ } else if ((col & 0xF0) == 0x60) {
+ result |= (PINF&(1<<(col & 0x0F)) ? 0 : (1<<x));
+ }
+ }
+ return result;
+}
+
+static void unselect_rows(void)
+{
+ int B = 0, C = 0, D = 0, E = 0, F = 0;
+ for(int x = 0; x < MATRIX_ROWS; x++) {
+ int row = ROWS[x];
+ if ((row & 0xF0) == 0x20) {
+ B |= (1<<(row & 0x0F));
+ } else if ((row & 0xF0) == 0x30) {
+ C |= (1<<(row & 0x0F));
+ } else if ((row & 0xF0) == 0x40) {
+ D |= (1<<(row & 0x0F));
+ } else if ((row & 0xF0) == 0x50) {
+ E |= (1<<(row & 0x0F));
+ } else if ((row & 0xF0) == 0x60) {
+ F |= (1<<(row & 0x0F));
+ }
+ }
+ DDRB &= ~(B); PORTB |= (B);
+ DDRC &= ~(C); PORTC |= (C);
+ DDRD &= ~(D); PORTD |= (D);
+ DDRE &= ~(E); PORTE |= (E);
+ DDRF &= ~(F); PORTF |= (F);
+}
+
+static void select_row(uint8_t row)
+{
+ int row_pin = ROWS[row];
+ if ((row_pin & 0xF0) == 0x20) {
+ DDRB |= (1<<(row_pin & 0x0F));
+ PORTB &= ~(1<<(row_pin & 0x0F));
+ } else if ((row_pin & 0xF0) == 0x30) {
+ DDRC |= (1<<(row_pin & 0x0F));
+ PORTC &= ~(1<<(row_pin & 0x0F));
+ } else if ((row_pin & 0xF0) == 0x40) {
+ DDRD |= (1<<(row_pin & 0x0F));
+ PORTD &= ~(1<<(row_pin & 0x0F));
+ } else if ((row_pin & 0xF0) == 0x50) {
+ DDRE |= (1<<(row_pin & 0x0F));
+ PORTE &= ~(1<<(row_pin & 0x0F));
+ } else if ((row_pin & 0xF0) == 0x60) {
+ DDRF |= (1<<(row_pin & 0x0F));
+ PORTF &= ~(1<<(row_pin & 0x0F));
+ }
+}
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projects / qmk_firmware.git / blobdiff