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Diffstat (limited to 'keyboard/macway/matrix.c')
-rw-r--r-- | keyboard/macway/matrix.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/keyboard/macway/matrix.c b/keyboard/macway/matrix.c deleted file mode 100644 index 3d10b304d4..0000000000 --- a/keyboard/macway/matrix.c +++ /dev/null @@ -1,217 +0,0 @@ -/* -Copyright 2011 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]; - -#ifdef MATRIX_HAS_GHOST -static bool matrix_has_ghost_in_row(uint8_t row); -#endif -static matrix_row_t read_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(); - // Input with pull-up(DDR:0, PORT:1) - DDRB = 0x00; - PORTB = 0xFF; - - // 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 01234567\n"); - for (uint8_t row = 0; row < matrix_rows(); row++) { - phex(row); print(": "); - pbin_reverse(matrix_get_row(row)); -#ifdef MATRIX_HAS_GHOST - if (matrix_has_ghost_in_row(row)) { - print(" <ghost"); - } -#endif - print("\n"); - } -} - -#ifdef MATRIX_HAS_GHOST -inline -static bool matrix_has_ghost_in_row(uint8_t row) -{ - // no ghost exists in case less than 2 keys on - if (((matrix[row] - 1) & matrix[row]) == 0) - return false; - - // ghost exists in case same state as other row - for (uint8_t i=0; i < MATRIX_ROWS; i++) { - if (i != row && (matrix[i] & matrix[row])) - return true; - } - return false; -} -#endif - -inline -static matrix_row_t read_cols(void) -{ - return ~PINB; -} - -inline -static void unselect_rows(void) -{ - // Hi-Z(DDR:0, PORT:0) to unselect - DDRC &= ~0b01000000; // PC: 6 - PORTC &= ~0b01000000; - DDRD &= ~0b11100111; // PD: 7,6,5,2,1,0 - PORTD &= ~0b11100111; - DDRF &= ~0b11000000; // PF: 7,6 - PORTF &= ~0b11000000; -} - -inline -static void select_row(uint8_t row) -{ - // Output low(DDR:1, PORT:0) to select - // row: 0 1 2 3 4 5 6 7 8 - // pin: PD0, PD5, PD7, PF6, PD6, PD1, PD2, PC6, PF7 - switch (row) { - case 0: - DDRD |= (1<<0); - PORTD &= ~(1<<0); - break; - case 1: - DDRD |= (1<<5); - PORTD &= ~(1<<5); - break; - case 2: - DDRD |= (1<<7); - PORTD &= ~(1<<7); - break; - case 3: - DDRF |= (1<<6); - PORTF &= ~(1<<6); - break; - case 4: - DDRD |= (1<<6); - PORTD &= ~(1<<6); - break; - case 5: - DDRD |= (1<<1); - PORTD &= ~(1<<1); - break; - case 6: - DDRD |= (1<<2); - PORTD &= ~(1<<2); - break; - case 7: - DDRC |= (1<<6); - PORTC &= ~(1<<6); - break; - case 8: - DDRF |= (1<<7); - PORTF &= ~(1<<7); - break; - } -} |