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Diffstat (limited to 'keyboard/phantom/matrix.c')
| -rw-r--r-- | keyboard/phantom/matrix.c | 274 |
1 files changed, 0 insertions, 274 deletions
diff --git a/keyboard/phantom/matrix.c b/keyboard/phantom/matrix.c deleted file mode 100644 index 6c3ae49c3..000000000 --- a/keyboard/phantom/matrix.c +++ /dev/null @@ -1,274 +0,0 @@ -/* Copyright 2012 Jun Wako <wakojun@gmail.com> - * - * This is heavily based on phantom/board.{c|h}. - * https://github.com/BathroomEpiphanies/AVR-Keyboard - * - * Copyright (c) 2012 Fredrik Atmer, Bathroom Epiphanies Inc - * http://bathroomepiphanies.com - * - * As for liscensing consult with the original files or its author. - */ -#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 0 -#endif -static uint8_t debouncing = DEBOUNCE; - -// bit array of key state(1:on, 0:off) -static matrix_row_t matrix[MATRIX_ROWS]; -static matrix_row_t matrix_debouncing[MATRIX_ROWS]; - -static uint8_t read_rows(void); -static void init_rows(void); -static void unselect_cols(void); -static void select_col(uint8_t col); - -#ifndef SLEEP_LED_ENABLE -/* LEDs are on output compare pins OC1B OC1C - This activates fast PWM mode on them. - Prescaler 256 and 8-bit counter results in - 16000000/256/256 = 244 Hz blink frequency. - LED_A: Caps Lock - LED_B: Scroll Lock */ -/* Output on PWM pins are turned off when the timer - reaches the value in the output compare register, - and are turned on when it reaches TOP (=256). */ -static -void setup_leds(void) -{ - TCCR1A |= // Timer control register 1A - (1<<WGM10) | // Fast PWM 8-bit - (1<<COM1B1)| // Clear OC1B on match, set at TOP - (1<<COM1C1); // Clear OC1C on match, set at TOP - TCCR1B |= // Timer control register 1B - (1<<WGM12) | // Fast PWM 8-bit - (1<<CS12); // Prescaler 256 - OCR1B = LED_BRIGHTNESS; // Output compare register 1B - OCR1C = LED_BRIGHTNESS; // Output compare register 1C - // LEDs: LED_A -> PORTB6, LED_B -> PORTB7 - DDRB |= (1<<6) | (1<<7); - PORTB &= ~((1<<6) | (1<<7)); -} -#endif - -inline -uint8_t matrix_rows(void) -{ - return MATRIX_ROWS; -} - -inline -uint8_t matrix_cols(void) -{ - return MATRIX_COLS; -} - -void matrix_init(void) -{ - // To use PORTF disable JTAG with writing JTD bit twice within four cycles. - MCUCR |= (1<<JTD); - MCUCR |= (1<<JTD); - - // initialize row and col - unselect_cols(); - init_rows(); -#ifndef SLEEP_LED_ENABLE - setup_leds(); -#endif - - // 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 col = 0; col < MATRIX_COLS; col++) { // 0-16 - select_col(col); - _delay_us(3); // without this wait it won't read stable value. - uint8_t rows = read_rows(); - for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5 - 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; - } - } - unselect_cols(); - } - - 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++) { - 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; -} - -/* Row pin configuration - * row: 0 1 2 3 4 5 - * pin: B5 B4 B3 B2 B1 B0 - */ -static void init_rows(void) -{ - // Input with pull-up(DDR:0, PORT:1) - DDRB &= ~0b00111111; - PORTB |= 0b00111111; -} - -static uint8_t read_rows(void) -{ - return (PINB&(1<<5) ? 0 : (1<<0)) | - (PINB&(1<<4) ? 0 : (1<<1)) | - (PINB&(1<<3) ? 0 : (1<<2)) | - (PINB&(1<<2) ? 0 : (1<<3)) | - (PINB&(1<<1) ? 0 : (1<<4)) | - (PINB&(1<<0) ? 0 : (1<<5)); -} - -/* Column pin configuration - * col: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 - * pin: D5 C7 C6 D4 D0 E6 F0 F1 F4 F5 F6 F7 D7 D6 D1 D2 D3 - */ -static void unselect_cols(void) -{ - // Hi-Z(DDR:0, PORT:0) to unselect - DDRC |= 0b11000000; // PC: 7 6 - PORTC |= 0b11000000; - DDRD |= 0b11111111; // PD: 7 6 5 4 3 2 1 0 - PORTD |= 0b11111111; - DDRE |= 0b01000000; // PE: 6 - PORTE |= 0b01000000; - DDRF |= 0b11110011; // PF: 7 6 5 4 1 0 - PORTF |= 0b11110011; -} - -static void select_col(uint8_t col) -{ - // Output low(DDR:1, PORT:0) to select - switch (col) { - case 0: - DDRD |= (1<<5); - PORTD &= ~(1<<5); - break; - case 1: - DDRC |= (1<<7); - PORTC &= ~(1<<7); - break; - case 2: - DDRC |= (1<<6); - PORTC &= ~(1<<6); - break; - case 3: - DDRD |= (1<<4); - PORTD &= ~(1<<4); - break; - case 4: - DDRD |= (1<<0); - PORTD &= ~(1<<0); - break; - case 5: - DDRE |= (1<<6); - PORTE &= ~(1<<6); - break; - case 6: - DDRF |= (1<<0); - PORTF &= ~(1<<0); - break; - case 7: - DDRF |= (1<<1); - PORTF &= ~(1<<1); - break; - case 8: - DDRF |= (1<<4); - PORTF &= ~(1<<4); - break; - case 9: - DDRF |= (1<<5); - PORTF &= ~(1<<5); - break; - case 10: - DDRF |= (1<<6); - PORTF &= ~(1<<6); - break; - case 11: - DDRF |= (1<<7); - PORTF &= ~(1<<7); - break; - case 12: - DDRD |= (1<<7); - PORTD &= ~(1<<7); - break; - case 13: - DDRD |= (1<<6); - PORTD &= ~(1<<6); - break; - case 14: - DDRD |= (1<<1); - PORTD &= ~(1<<1); - break; - case 15: - DDRD |= (1<<2); - PORTD &= ~(1<<2); - break; - case 16: - DDRD |= (1<<3); - PORTD &= ~(1<<3); - break; - } -} |