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Diffstat (limited to 'keyboard/hid_liber/matrix.c')
| -rw-r--r-- | keyboard/hid_liber/matrix.c | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/keyboard/hid_liber/matrix.c b/keyboard/hid_liber/matrix.c deleted file mode 100644 index adf6ac8c4..000000000 --- a/keyboard/hid_liber/matrix.c +++ /dev/null @@ -1,231 +0,0 @@ -/* Copyright 2012 Jun Wako <wakojun@gmail.com> - * - * This is heavily based on hid_liber/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]; - - -#define _DDRA (uint8_t *const)&DDRA -#define _DDRB (uint8_t *const)&DDRB -#define _DDRC (uint8_t *const)&DDRC -#define _DDRD (uint8_t *const)&DDRD -#define _DDRE (uint8_t *const)&DDRE -#define _DDRF (uint8_t *const)&DDRF - -#define _PINA (uint8_t *const)&PINA -#define _PINB (uint8_t *const)&PINB -#define _PINC (uint8_t *const)&PINC -#define _PIND (uint8_t *const)&PIND -#define _PINE (uint8_t *const)&PINE -#define _PINF (uint8_t *const)&PINF - -#define _PORTA (uint8_t *const)&PORTA -#define _PORTB (uint8_t *const)&PORTB -#define _PORTC (uint8_t *const)&PORTC -#define _PORTD (uint8_t *const)&PORTD -#define _PORTE (uint8_t *const)&PORTE -#define _PORTF (uint8_t *const)&PORTF - -#define _BIT0 0x01 -#define _BIT1 0x02 -#define _BIT2 0x04 -#define _BIT3 0x08 -#define _BIT4 0x10 -#define _BIT5 0x20 -#define _BIT6 0x40 -#define _BIT7 0x80 - -/* Specifies the ports and pin numbers for the rows */ -static -uint8_t *const row_ddr[MATRIX_ROWS] = { - _DDRB, _DDRB, - _DDRC, _DDRC, - _DDRD, _DDRD, _DDRD, _DDRD, _DDRD, _DDRD, _DDRD, _DDRD, - _DDRF, _DDRF, _DDRF, _DDRF, _DDRF, _DDRF}; - -static -uint8_t *const row_port[MATRIX_ROWS] = { - _PORTB, _PORTB, - _PORTC, _PORTC, - _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, - _PORTF, _PORTF, _PORTF, _PORTF, _PORTF, _PORTF}; - -static -uint8_t *const row_pin[MATRIX_ROWS] = { - _PINB, _PINB, - _PINC, _PINC, - _PIND, _PIND, _PIND, _PIND, _PIND, _PIND, _PIND, _PIND, - _PINF, _PINF, _PINF, _PINF, _PINF, _PINF}; - -static -const uint8_t row_bit[MATRIX_ROWS] = { - _BIT4, _BIT7, - _BIT6, _BIT7, - _BIT0, _BIT1, _BIT2, _BIT3, _BIT4, _BIT5, _BIT6, _BIT7, - _BIT0, _BIT1, _BIT4, _BIT5, _BIT6, _BIT7}; - -static -const uint8_t mask = 0x0E; - -/* Specifies the ports and pin numbers for the columns */ -static -const uint8_t col_bit[MATRIX_COLS] = { 0x00, 0x02, 0x04, 0x06, 0x08, 0x0A, 0x0C, 0x0E}; - -static -inline void pull_column(int col) { - PORTB = col_bit[col] | (PORTB & ~mask); -} - -static -inline void release_column(int col) { -} - -/* PORTB is set as input with pull-up resistors - PORTC,D,E,F are set to high output */ -static -void setup_io_pins(void) { - uint8_t row; - DDRB |= 0x0E; - PORTB &= ~0x0E; - for(row = 0; row < MATRIX_ROWS; row++) { - *row_ddr[row] &= ~row_bit[row]; - *row_port[row] &= ~row_bit[row]; - } -} - -static -void setup_leds(void) { - DDRB |= 0x60; - PORTB |= 0x60; -} - - -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 - setup_io_pins(); - setup_leds(); - - // 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++) { // 0-7 - pull_column(col); // output hi on theline - _delay_us(5); // without this wait it won't read stable value. - for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-17 - bool prev_bit = matrix_debouncing[row] & (1<<col); - bool curr_bit = *row_pin[row] & row_bit[row]; - if (prev_bit != curr_bit) { - matrix_debouncing[row] ^= ((matrix_row_t)1<<col); - if (debouncing) { - dprintf("bounce!: %02X\n", debouncing); - } - debouncing = DEBOUNCE; - } - } - release_column(col); - } - - 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) -{ - // NOTE: no longer used - return true; -} - -inline -bool matrix_has_ghost(void) -{ - return false; -} - -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)); - print("\n"); - } -} - -uint8_t matrix_key_count(void) -{ - uint8_t count = 0; - for (uint8_t i = 0; i < MATRIX_ROWS; i++) { - for (uint8_t j = 0; j < MATRIX_COLS; j++) { - if (matrix_is_on(i, j)) - count++; - } - } - return count; -} |