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Diffstat (limited to 'keyboard/alps64/matrix.c')
| -rw-r--r-- | keyboard/alps64/matrix.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/keyboard/alps64/matrix.c b/keyboard/alps64/matrix.c deleted file mode 100644 index 805999d4a1..0000000000 --- a/keyboard/alps64/matrix.c +++ /dev/null @@ -1,197 +0,0 @@ -/* -Copyright 2012 Jun Wako <wakojun@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/>. -*/ - -/* - * 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" - - -#ifndef DEBOUNCE -# define DEBOUNCE 5 -#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) -{ - // 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; - } - - //debug - debug_matrix = true; - LED_ON(); - _delay_ms(500); - LED_OFF(); -} - -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; -} - -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"); - } -} - -/* Column pin configuration - * col: 0 1 2 3 4 5 6 7 - * pin: B0 B1 B2 B3 B4 B5 B6 B7 - */ -static void init_cols(void) -{ - // Input with pull-up(DDR:0, PORT:1) - DDRB &= ~0b11111111; - PORTB |= 0b11111111; -} - -/* Returns status of switches(1:on, 0:off) */ -static matrix_row_t read_cols(void) -{ - // Invert because PIN indicates 'switch on' with low(0) and 'off' with high(1) - return ~PINB; -} - -/* Row pin configuration - * row: 0 1 2 3 4 5 6 7 - * pin: D0 D1 D2 D3 D4 D5 D6 C2 - */ -static void unselect_rows(void) -{ - // Hi-Z(DDR:0, PORT:0) to unselect - DDRD &= ~0b01111111; - PORTD &= ~0b01111111; - DDRC &= ~0b00000100; - PORTC &= ~0b00000100; -} - - -static void select_row(uint8_t row) -{ - // Output low(DDR:1, PORT:0) to select - switch (row) { - case 0: - DDRD |= (1<<0); - PORTD &= ~(1<<0); - break; - case 1: - DDRD |= (1<<1); - PORTD &= ~(1<<1); - break; - case 2: - DDRD |= (1<<2); - PORTD &= ~(1<<2); - break; - case 3: - DDRD |= (1<<3); - PORTD &= ~(1<<3); - break; - case 4: - DDRD |= (1<<4); - PORTD &= ~(1<<4); - break; - case 5: - DDRD |= (1<<5); - PORTD &= ~(1<<5); - break; - case 6: - DDRD |= (1<<6); - PORTD &= ~(1<<6); - break; - case 7: - DDRC |= (1<<2); - PORTC &= ~(1<<2); - break; - } -} |