qmk-firmware/keyboards/ps2avrGB/matrix.c
Kenneth Aloysius d27855665a Updated matrix.c for some PS2AVRGB boards and templates for new_project script (#2992)
* Add M6-A keymap

* Update XD60 keymap

* Update XD60 keymap readme

* Update JJ40 and Let's Split keymaps

* Add readme for M6-A

* Fix typo, update JJ40 README

* Update jj40 readme

* Cleanup jj40 keymap

* Revert Let's Split QWERTY layer to default before #2010

* Update numpad layers

* Fix: Let's Split keymap getting stuck mods due to having keycodes assigned on the Raise layer

* Keep ASCII art consistent with keymap

* Staryu: initial port

* Add personal keymap

* Added and updated READMEs

* Fix: default keymap for staryu

* Rudimentary backlight support.

* Enabled mousekeys for default keymap

* use QMK_KEYBOARD_H and LAYOUT

* Update readme.md for NIU mini: flash using avrdude

* Fix missing linebreaks for Staryu README

* Update readme.md

* Update PS2AVRGB boards with new matrix.c

* Update canoe matrix.c; untested

* Fix canoe.c for building (needs matrix_scan_user and matrix_init_user)

* Add personal Iris keymap

* Update keymap

* Update keymap

* Update keymap, disable backlighting and underglow

* Move PrintScreen button

* Add README
2018-05-31 08:32:05 -07:00

113 lines
2.7 KiB
C

/*
Copyright 2017 Luiz Ribeiro <luizribeiro@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 "matrix.h"
#ifndef DEBOUNCE
# define DEBOUNCE 5
#endif
static uint8_t debouncing = DEBOUNCE;
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
void matrix_set_row_status(uint8_t row);
uint8_t bit_reverse(uint8_t x);
void matrix_init(void) {
// all outputs for rows high
DDRB = 0xFF;
PORTB = 0xFF;
// all inputs for columns
DDRA = 0x00;
DDRC &= ~(0x111111<<2);
DDRD &= ~(1<<PIND7);
// all columns are pulled-up
PORTA = 0xFF;
PORTC |= (0b111111<<2);
PORTD |= (1<<PIND7);
// 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) {
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
matrix_set_row_status(row);
_delay_us(5);
matrix_row_t cols = (
// cols 0..7, PORTA 0 -> 7
(~PINA) & 0xFF
) | (
// cols 8..13, PORTC 7 -> 0
bit_reverse((~PINC) & 0xFF) << 8
) | (
// col 14, PORTD 7
((~PIND) & (1 << PIND7)) << 7
);
if (matrix_debouncing[row] != cols) {
matrix_debouncing[row] = cols;
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;
}
// declarations
void matrix_set_row_status(uint8_t row) {
DDRB = (1 << row);
PORTB = ~(1 << row);
}
uint8_t bit_reverse(uint8_t x) {
x = ((x >> 1) & 0x55) | ((x << 1) & 0xaa);
x = ((x >> 2) & 0x33) | ((x << 2) & 0xcc);
x = ((x >> 4) & 0x0f) | ((x << 4) & 0xf0);
return x;
}
inline matrix_row_t matrix_get_row(uint8_t row) {
return matrix[row];
}
void matrix_print(void) {
}