mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-21 17:13:22 +00:00
298 lines
7.0 KiB
C
298 lines
7.0 KiB
C
/*
|
|
Copyright 2012 Jun Wako
|
|
Copyright 2014 Jack Humbert
|
|
|
|
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>
|
|
#if defined(__AVR__)
|
|
#include <avr/io.h>
|
|
#endif
|
|
#include "wait.h"
|
|
#include "print.h"
|
|
#include "debug.h"
|
|
#include "util.h"
|
|
#include "matrix.h"
|
|
|
|
/* Set 0 if debouncing isn't needed */
|
|
|
|
#ifndef DEBOUNCING_DELAY
|
|
# define DEBOUNCING_DELAY 5
|
|
#endif
|
|
static uint8_t debouncing = DEBOUNCING_DELAY;
|
|
|
|
static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
|
|
static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
|
|
|
|
/* matrix state(1:on, 0:off) */
|
|
static matrix_row_t matrix[MATRIX_ROWS];
|
|
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
|
|
|
|
#if DIODE_DIRECTION == ROW2COL
|
|
static matrix_row_t matrix_reversed[MATRIX_COLS];
|
|
static matrix_row_t matrix_reversed_debouncing[MATRIX_COLS];
|
|
#endif
|
|
|
|
#if MATRIX_COLS > 16
|
|
#define SHIFTER 1UL
|
|
#else
|
|
#define SHIFTER 1
|
|
#endif
|
|
|
|
static matrix_row_t read_cols(void);
|
|
static void init_cols(void);
|
|
static void unselect_rows(void);
|
|
static void select_row(uint8_t row);
|
|
|
|
__attribute__ ((weak))
|
|
void matrix_init_quantum(void) {
|
|
matrix_init_kb();
|
|
}
|
|
|
|
__attribute__ ((weak))
|
|
void matrix_scan_quantum(void) {
|
|
matrix_scan_kb();
|
|
}
|
|
|
|
__attribute__ ((weak))
|
|
void matrix_init_kb(void) {
|
|
matrix_init_user();
|
|
}
|
|
|
|
__attribute__ ((weak))
|
|
void matrix_scan_kb(void) {
|
|
matrix_scan_user();
|
|
}
|
|
|
|
__attribute__ ((weak))
|
|
void matrix_init_user(void) {
|
|
}
|
|
|
|
__attribute__ ((weak))
|
|
void matrix_scan_user(void) {
|
|
}
|
|
|
|
inline
|
|
uint8_t matrix_rows(void) {
|
|
return MATRIX_ROWS;
|
|
}
|
|
|
|
inline
|
|
uint8_t matrix_cols(void) {
|
|
return MATRIX_COLS;
|
|
}
|
|
|
|
// void matrix_power_up(void) {
|
|
// #if DIODE_DIRECTION == COL2ROW
|
|
// for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
|
|
// /* DDRxn */
|
|
// _SFR_IO8((row_pins[r] >> 4) + 1) |= _BV(row_pins[r] & 0xF);
|
|
// toggle_row(r);
|
|
// }
|
|
// for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
|
|
// /* PORTxn */
|
|
// _SFR_IO8((col_pins[c] >> 4) + 2) |= _BV(col_pins[c] & 0xF);
|
|
// }
|
|
// #else
|
|
// for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
|
|
// /* DDRxn */
|
|
// _SFR_IO8((col_pins[c] >> 4) + 1) |= _BV(col_pins[c] & 0xF);
|
|
// toggle_col(c);
|
|
// }
|
|
// for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
|
|
// /* PORTxn */
|
|
// _SFR_IO8((row_pins[r] >> 4) + 2) |= _BV(row_pins[r] & 0xF);
|
|
// }
|
|
// #endif
|
|
// }
|
|
|
|
void matrix_init(void) {
|
|
// To use PORTF disable JTAG with writing JTD bit twice within four cycles.
|
|
#ifdef __AVR_ATmega32U4__
|
|
MCUCR |= _BV(JTD);
|
|
MCUCR |= _BV(JTD);
|
|
#endif
|
|
|
|
// 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;
|
|
}
|
|
|
|
matrix_init_quantum();
|
|
}
|
|
|
|
uint8_t matrix_scan(void)
|
|
{
|
|
|
|
#if DIODE_DIRECTION == COL2ROW
|
|
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
|
select_row(i);
|
|
wait_us(30); // without this wait read unstable value.
|
|
matrix_row_t cols = read_cols();
|
|
if (matrix_debouncing[i] != cols) {
|
|
matrix_debouncing[i] = cols;
|
|
if (debouncing) {
|
|
debug("bounce!: "); debug_hex(debouncing); debug("\n");
|
|
}
|
|
debouncing = DEBOUNCING_DELAY;
|
|
}
|
|
unselect_rows();
|
|
}
|
|
|
|
if (debouncing) {
|
|
if (--debouncing) {
|
|
wait_ms(1);
|
|
} else {
|
|
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
|
matrix[i] = matrix_debouncing[i];
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
for (uint8_t i = 0; i < MATRIX_COLS; i++) {
|
|
select_row(i);
|
|
wait_us(30); // without this wait read unstable value.
|
|
matrix_row_t rows = read_cols();
|
|
if (matrix_reversed_debouncing[i] != rows) {
|
|
matrix_reversed_debouncing[i] = rows;
|
|
if (debouncing) {
|
|
debug("bounce!: "); debug_hex(debouncing); debug("\n");
|
|
}
|
|
debouncing = DEBOUNCING_DELAY;
|
|
}
|
|
unselect_rows();
|
|
}
|
|
|
|
if (debouncing) {
|
|
if (--debouncing) {
|
|
wait_ms(1);
|
|
} else {
|
|
for (uint8_t i = 0; i < MATRIX_COLS; i++) {
|
|
matrix_reversed[i] = matrix_reversed_debouncing[i];
|
|
}
|
|
}
|
|
}
|
|
for (uint8_t y = 0; y < MATRIX_ROWS; y++) {
|
|
matrix_row_t row = 0;
|
|
for (uint8_t x = 0; x < MATRIX_COLS; x++) {
|
|
row |= ((matrix_reversed[x] & (1<<y)) >> y) << x;
|
|
}
|
|
matrix[y] = row;
|
|
}
|
|
#endif
|
|
|
|
matrix_scan_quantum();
|
|
|
|
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_cols(void)
|
|
{
|
|
#if DIODE_DIRECTION == COL2ROW
|
|
for(int x = 0; x < MATRIX_COLS; x++) {
|
|
int pin = col_pins[x];
|
|
#else
|
|
for(int x = 0; x < MATRIX_ROWS; x++) {
|
|
int pin = row_pins[x];
|
|
#endif
|
|
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF);
|
|
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF);
|
|
}
|
|
}
|
|
|
|
static matrix_row_t read_cols(void)
|
|
{
|
|
matrix_row_t result = 0;
|
|
|
|
#if DIODE_DIRECTION == COL2ROW
|
|
for(int x = 0; x < MATRIX_COLS; x++) {
|
|
int pin = col_pins[x];
|
|
#else
|
|
for(int x = 0; x < MATRIX_ROWS; x++) {
|
|
int pin = row_pins[x];
|
|
#endif
|
|
result |= (_SFR_IO8(pin >> 4) & _BV(pin & 0xF)) ? 0 : (SHIFTER << x);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static void unselect_rows(void)
|
|
{
|
|
#if DIODE_DIRECTION == COL2ROW
|
|
for(int x = 0; x < MATRIX_ROWS; x++) {
|
|
int pin = row_pins[x];
|
|
#else
|
|
for(int x = 0; x < MATRIX_COLS; x++) {
|
|
int pin = col_pins[x];
|
|
#endif
|
|
_SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF);
|
|
_SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF);
|
|
}
|
|
}
|
|
|
|
static void select_row(uint8_t row)
|
|
{
|
|
|
|
#if DIODE_DIRECTION == COL2ROW
|
|
int pin = row_pins[row];
|
|
#else
|
|
int pin = col_pins[row];
|
|
#endif
|
|
_SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF);
|
|
_SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF);
|
|
}
|