diff options
Diffstat (limited to 'keyboards/lets_split/uno_slave/uno-matrix.c')
-rw-r--r-- | keyboards/lets_split/uno_slave/uno-matrix.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/keyboards/lets_split/uno_slave/uno-matrix.c b/keyboards/lets_split/uno_slave/uno-matrix.c deleted file mode 100644 index 4ac3c33ac..000000000 --- a/keyboards/lets_split/uno_slave/uno-matrix.c +++ /dev/null @@ -1,160 +0,0 @@ -#define F_CPU 16000000UL - -#include <util/delay.h> -#include <avr/io.h> -#include <stdlib.h> - -#include "uno-matrix.h" - -#define debug(X) NULL -#define debug_hex(X) NULL - -#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) -{ - //debug_enable = true; - //debug_matrix = true; - //debug_mouse = true; - // 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; - } -} - -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(); - //Serial.println(cols, BIN); - 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]; -} - -// TODO update this comment -/* Column pin configuration - * col: 0 1 2 3 4 5 - * pin: D3 D4 D5 D6 D7 B0 - */ -static void init_cols(void) -{ - // Input with pull-up(DDR:0, PORT:1) - DDRD &= ~(1<<3 | 1<<4 | 1<<5 | 1<<6 | 1<<7); - PORTD |= (1<<3 | 1<<4 | 1<<5 | 1<<6 | 1<<7); - - DDRB &= ~(1<<0); - PORTB |= (1<<0); -} - -static matrix_row_t read_cols(void) -{ - return (PIND&(1<<3) ? 0 : (1<<0)) | - (PIND&(1<<4) ? 0 : (1<<1)) | - (PIND&(1<<5) ? 0 : (1<<2)) | - (PIND&(1<<6) ? 0 : (1<<3)) | - (PIND&(1<<7) ? 0 : (1<<4)) | - (PINB&(1<<0) ? 0 : (1<<5)); -} - -/* Row pin configuration - * row: 0 1 2 3 - * pin: C0 C1 C2 C3 - */ -static void unselect_rows(void) -{ - // Hi-Z(DDR:0, PORT:0) to unselect - DDRC &= ~0xF; - PORTC &= ~0xF; -} - -static void select_row(uint8_t row) -{ - // Output low(DDR:1, PORT:0) to select - switch (row) { - case 0: - DDRC |= (1<<0); - PORTC &= ~(1<<0); - break; - case 1: - DDRC |= (1<<1); - PORTC &= ~(1<<1); - break; - case 2: - DDRC |= (1<<2); - PORTC &= ~(1<<2); - break; - case 3: - DDRC |= (1<<3); - PORTC &= ~(1<<3); - break; - } -} |