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Diffstat (limited to 'keyboard/nerd/matrix.c')
| -rw-r--r-- | keyboard/nerd/matrix.c | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/keyboard/nerd/matrix.c b/keyboard/nerd/matrix.c deleted file mode 100644 index eb5a9ab4f..000000000 --- a/keyboard/nerd/matrix.c +++ /dev/null @@ -1,221 +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" -#include "backlight.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 uint16_t read_inputs(void); -static void init_inputs(void); -static void init_outputs(void); -static void reset_inputs(void); -static void reset_outputs(void); -static void select_output(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) -{ - backlight_init_ports(); - init_inputs(); - init_outputs(); - - 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++) { - reset_inputs(); - reset_outputs(); - select_output(col); - _delay_us(3); - uint16_t rows = read_inputs(); - 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); - if (debouncing) { - dprint("bounce!: "); dprintf("%02X", debouncing); dprintln(); - } - debouncing = DEBOUNCE; - } - } - } - - 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++) { - phex(row); print(": "); - pbin_reverse16(matrix_get_row(row)); - print("\n"); - } -} - -uint8_t matrix_key_count(void) -{ - uint8_t count = 0; - for (uint8_t i = 0; i < MATRIX_ROWS; i++) { - count += bitpop16(matrix[i]); - } - return count; -} - -static void init_inputs(void) -{ - DDRE &= ~0b01000000; // PE6 (Col 0) - DDRB &= ~0b00001111; // PB0 (Col 1), PB1 (Col 2), PB2 (Col 3), PB3 (Col 4) - DDRF &= ~0b00000001; // PF0 (Col 5) - DDRD &= ~0b00100011; // PD0 (Col 6), PD1 (Col 8 TKL), PD5 (Col 7) -} - -static uint16_t read_inputs(void) -{ - return (PINE&(1<<6) ? 0 : (1<<0)) | // PE6 (Col 0) - (PINB&(1<<0) ? 0 : (1<<1)) | // PB0 (Col 1) - (PINB&(1<<1) ? 0 : (1<<2)) | // PB1 (Col 2) - (PINB&(1<<2) ? 0 : (1<<3)) | // PB2 (Col 3) - (PINB&(1<<3) ? 0 : (1<<4)) | // PB3 (Col 4) - (PINF&(1<<0) ? 0 : (1<<5)) | // PF0 (Col 5) - (PIND&(1<<0) ? 0 : (1<<6)) | // PD0 (Col 6) - (PIND&(1<<5) ? 0 : (1<<7)) | // PD5 (Col 7) - (PIND&(1<<1) ? 0 : (1<<8)); // PD1 (Col 8 TKL) -} - -static void reset_inputs(void) -{ - PORTE |= 0b01000000; // PE6 (Col 0) - PORTB |= 0b00001111; // PB0 (Col 1), PB1 (Col 2), PB2 (Col 3), PB3 (Col 4) - PORTF |= 0b00000001; // PF0 (Col 5) - PORTD |= 0b00100011; // PD0 (Col 6), PD1 (Col 8 TKL), PD5 (Col 7) -} - -static void init_outputs(void) -{ - DDRB |= 0b00010000; // PB4 (Row 0) - DDRE |= 0b00000100; // PE2 (Row 1) - DDRF |= 0b11110010; // PF4 (Row 2), PF7 (Row 3), PF1 (Row 4), PF6 (Row 5), PF5 (Row 7) - DDRC |= 0b11000000; // PC6 (Row 6), PC7 (Row 9) - DDRD |= 0b10000000; // PD7 (Row 8) -} - -static void reset_outputs(void) -{ - PORTB |= 0b00010000; // PB4 (Row 0) - PORTE |= 0b00000100; // PE2 (Row 1) - PORTF |= 0b11110010; // PF4 (Row 2), PF7 (Row 3), PF1 (Row 4), PF6 (Row 5), PF5 (Row 7) - PORTC |= 0b11000000; // PC6 (Row 6), PC7 (Row 9) - PORTD |= 0b10000000; // PD7 (Row 8) -} - -static void select_output(uint8_t col) -{ - switch (col) { - case 0: - PORTB &= ~(1<<4); - break; - case 1: - PORTE &= ~(1<<2); - break; - case 2: - PORTF &= ~(1<<4); - break; - case 3: - PORTF &= ~(1<<7); - break; - case 4: - PORTF &= ~(1<<1); - break; - case 5: - PORTF &= ~(1<<6); - break; - case 6: - PORTC &= ~(1<<6); - break; - case 7: - PORTF &= ~(1<<5); - break; - case 8: - PORTD &= ~(1<<7); - break; - case 9: - PORTC &= ~(1<<7); - break; - } -} |