+++ /dev/null
-/*
-Copyright 2013 Mathias Andersson <wraul@dbox.se>
-
-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"
-
-
-#ifndef DEBOUNCE
-# define DEBOUNCE 0
-#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 uint8_t read_rows(void);
-static uint8_t read_caps(void);
-static void init_rows(void);
-static void unselect_cols(void);
-static void select_col(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)
-{
- unselect_cols();
- init_rows();
- // 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 col = 0; col < MATRIX_COLS; col++) { // 0-16
- select_col(col);
- _delay_us(3); // TODO: Determine the correct value needed here.
- uint8_t rows = read_rows();
- // Use the otherwise unused col: 0 row: 3 for caps lock.
- if(col == 0) {
- rows |= read_caps();
- }
- for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5
- 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;
-}
-
-/* Row pin configuration
- * row: 0 1 2 3 4 5
- * pin: D0 D1 D2 D3 D5 B7
- *
- * Caps lock uses its own pin PE2
- */
-static void init_rows(void)
-{
- // Input (DDR:0, PORT:0)
- DDRD &= ~0b00101111;
- PORTD &= ~0b00101111;
- DDRB &= ~(1<<7);
- PORTB &= ~(1<<7);
-
- // Input with pull-up (DDR:0, PORT:1)
- DDRE &= ~(1<<2);
- PORTE |= (1<<2);
-}
-
-static uint8_t read_rows(void)
-{
- return (PIND&(1<<0) ? (1<<0) : 0) |
- (PIND&(1<<1) ? (1<<1) : 0) |
- (PIND&(1<<2) ? (1<<2) : 0) |
- (PIND&(1<<3) ? (1<<3) : 0) |
- (PIND&(1<<5) ? (1<<4) : 0) |
- (PINB&(1<<7) ? (1<<5) : 0);
-}
-
-static uint8_t read_caps(void)
-{
- return PINE&(1<<2) ? 0 : (1<<3);
-}
-
-/* Columns 0 - 15
- * These columns uses two 74HC237D 3 to 8 bit demultiplexers.
- * col / pin: PC6 PB6 PF0 PF1 PC7
- * 0: 1 0 0 0 0
- * 1: 1 0 1 0 0
- * 2: 1 0 0 1 0
- * 3: 1 0 1 1 0
- * 4: 1 0 0 0 1
- * 5: 1 0 1 0 1
- * 6: 1 0 0 1 1
- * 7: 1 0 1 1 1
- * 8: 0 1 0 0 0
- * 9: 0 1 1 0 0
- * 10: 0 1 0 1 0
- * 11: 0 1 1 1 0
- * 12: 0 1 0 0 1
- * 13: 0 1 1 0 1
- * 14: 0 1 0 1 1
- * 15: 0 1 1 1 1
- *
- * col: 16
- * pin: PB5
- */
-static void unselect_cols(void)
-{
- DDRB |= (1<<5) | (1<<6);
- PORTB &= ~((1<<5) | (1<<6));
-
- DDRC |= (1<<6) | (1<<7);
- PORTC &= ~((1<<6) | (1<<7));
-
- DDRF |= (1<<0) | (1<<1);
- PORTF &= ~((1<<0) | (1<<1));
-}
-
-static void select_col(uint8_t col)
-{
- // Output high (DDR:1, PORT:1) to select
- switch (col) {
- case 0:
- PORTC |= (1<<6);
- break;
- case 1:
- PORTC |= (1<<6);
- PORTF |= (1<<0);
- break;
- case 2:
- PORTC |= (1<<6);
- PORTF |= (1<<1);
- break;
- case 3:
- PORTC |= (1<<6);
- PORTF |= (1<<0) | (1<<1);
- break;
- case 4:
- PORTC |= (1<<6);
- PORTC |= (1<<7);
- break;
- case 5:
- PORTC |= (1<<6);
- PORTF |= (1<<0);
- PORTC |= (1<<7);
- break;
- case 6:
- PORTC |= (1<<6);
- PORTF |= (1<<1);
- PORTC |= (1<<7);
- break;
- case 7:
- PORTC |= (1<<6);
- PORTF |= (1<<0) | (1<<1);
- PORTC |= (1<<7);
- break;
- case 8:
- PORTB |= (1<<6);
- break;
- case 9:
- PORTB |= (1<<6);
- PORTF |= (1<<0);
- break;
- case 10:
- PORTB |= (1<<6);
- PORTF |= (1<<1);
- break;
- case 11:
- PORTB |= (1<<6);
- PORTF |= (1<<0) | (1<<1);
- break;
- case 12:
- PORTB |= (1<<6);
- PORTC |= (1<<7);
- break;
- case 13:
- PORTB |= (1<<6);
- PORTF |= (1<<0);
- PORTC |= (1<<7);
- break;
- case 14:
- PORTB |= (1<<6);
- PORTF |= (1<<1);
- PORTC |= (1<<7);
- break;
- case 15:
- PORTB |= (1<<6);
- PORTF |= (1<<0) | (1<<1);
- PORTC |= (1<<7);
- break;
- case 16:
- PORTB |= (1<<5);
- break;
- }
-}
projects / qmk_firmware.git / blobdiff