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Diffstat (limited to 'keyboards/kitten_paw/matrix.c')
| -rw-r--r-- | keyboards/kitten_paw/matrix.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/keyboards/kitten_paw/matrix.c b/keyboards/kitten_paw/matrix.c deleted file mode 100644 index d436ad56ca..0000000000 --- a/keyboards/kitten_paw/matrix.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - Copyright 2014 Ralf Schmitt <ralf@bunkertor.net> - - 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 DEBOUNCING_DELAY -# define DEBOUNCING_DELAY 5 -#endif -static uint8_t debouncing = DEBOUNCING_DELAY; - -static matrix_row_t matrix[MATRIX_ROWS]; -static matrix_row_t matrix_debouncing[MATRIX_ROWS]; - -static uint8_t read_rows(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; -} - -/* Column pin configuration - * - * col: 0 1 2 3 4 5 6 7 - * pin: PC7 PD5 PD3 PD1 PC2 PD6 PD4 PD2 - * - * Rrr pin configuration - * - * These rrrs uses one 74HC154 4 to 16 bit demultiplexer (low - * active), together with 2 rrrs driven directly from the micro - * controller, to control the 18 rrrs. The rrrs are driven from - * pins B6,5,4,3,2,1,0. - */ -void matrix_init(void) { - DDRC &= ~0b10000100; // Row input pins - DDRD &= ~0b01111110; - PORTC |= 0b10000100; - PORTD |= 0b01111110; - - DDRB |= 0b01111111; // Column output pins - - for (uint8_t i=0; i < MATRIX_ROWS; i++) { - matrix[i] = 0; - matrix_debouncing[i] = 0; - } - matrix_init_quantum(); -} - -uint8_t matrix_scan(void) { - for (uint8_t col = 0; col < MATRIX_COLS; col++) { - select_col(col); - _delay_us(3); - uint8_t rows = read_rows(); - for (uint8_t row = 0; row < MATRIX_ROWS; row++) { - 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); - debouncing = DEBOUNCING_DELAY; - } - } - } - - 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; -} - -bool matrix_is_modified(void) { - if (debouncing) - return false; - else - 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; -} - -static uint8_t read_rows(void) { - return - (PINC&(1<<7) ? 0 : (1<<0)) | - (PIND&(1<<5) ? 0 : (1<<1)) | - (PIND&(1<<3) ? 0 : (1<<2)) | - (PIND&(1<<1) ? 0 : (1<<3)) | - (PINC&(1<<2) ? 0 : (1<<4)) | - (PIND&(1<<2) ? 0 : (1<<5)) | - (PIND&(1<<4) ? 0 : (1<<6)) | - (PIND&(1<<6) ? 0 : (1<<7)); -} - -static void select_col(uint8_t col) { - switch (col) { - case 0: PORTB = (PORTB & ~0b01111111) | 0b01100100; break; - case 1: PORTB = (PORTB & ~0b01111111) | 0b01101100; break; - case 2: PORTB = (PORTB & ~0b01111111) | 0b01100010; break; - case 3: PORTB = (PORTB & ~0b01111111) | 0b01111010; break; - case 4: PORTB = (PORTB & ~0b01111111) | 0b01100110; break; - case 5: PORTB = (PORTB & ~0b01111111) | 0b01110110; break; - case 6: PORTB = (PORTB & ~0b01111111) | 0b01101110; break; - case 7: PORTB = (PORTB & ~0b01111111) | 0b01111110; break; - case 8: PORTB = (PORTB & ~0b01111111) | 0b01000001; break; - case 9: PORTB = (PORTB & ~0b01111111) | 0b00100001; break; - case 10: PORTB = (PORTB & ~0b01111111) | 0b01101010; break; - case 11: PORTB = (PORTB & ~0b01111111) | 0b01110010; break; - case 12: PORTB = (PORTB & ~0b01111111) | 0b01111100; break; - case 13: PORTB = (PORTB & ~0b01111111) | 0b01110100; break; - case 14: PORTB = (PORTB & ~0b01111111) | 0b01111000; break; - case 15: PORTB = (PORTB & ~0b01111111) | 0b01110000; break; - case 16: PORTB = (PORTB & ~0b01111111) | 0b01100000; break; - case 17: PORTB = (PORTB & ~0b01111111) | 0b01101000; break; - } -} |