mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-12 21:00:58 +00:00
133 lines
3.1 KiB
C
133 lines
3.1 KiB
C
/* Copyright 2017-2019 Nikolaus Wittenstein <nikolaus.wittenstein@gmail.com>
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
|
|
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
|
|
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
|
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
|
|
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include "datahand.h"
|
|
|
|
#include "matrix.h"
|
|
#include "action.h"
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <avr/io.h>
|
|
|
|
static matrix_row_t matrix[MATRIX_ROWS];
|
|
|
|
static matrix_row_t read_cols(void);
|
|
static void select_row(uint8_t row);
|
|
|
|
// user-defined overridable functions
|
|
|
|
__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) {}
|
|
|
|
// helper functions
|
|
void matrix_init(void) {
|
|
/* See datahand.h for more detail on pins. */
|
|
|
|
/* 7 - matrix scan; 6-3 - mode LEDs */
|
|
DDRB = 0b11111000;
|
|
|
|
/* 1-0 - matrix scan */
|
|
DDRD = 0b00000011;
|
|
|
|
/* 6 - matrix scan */
|
|
DDRE = 0b01000000;
|
|
|
|
/* 7-4 - lock LEDs */
|
|
DDRF = 0b11110000;
|
|
|
|
/* Turn off the non-Normal LEDs (they're active low). */
|
|
PORTB |= LED_TENKEY | LED_FN | LED_NAS;
|
|
|
|
/* Turn off the lock LEDs. */
|
|
PORTF |= LED_CAPS_LOCK | LED_NUM_LOCK | LED_SCROLL_LOCK | LED_MOUSE_LOCK;
|
|
|
|
matrix_init_quantum();
|
|
}
|
|
|
|
uint8_t matrix_scan(void) {
|
|
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
|
|
select_row(row);
|
|
/* The default hardware works down to at least 100us, but I have a replacement
|
|
* photodiode that responds a little more slowly. Cranking it up to 1000us fixes
|
|
* shadowing issues.
|
|
*/
|
|
_delay_us(1000);
|
|
matrix[row] = read_cols();
|
|
}
|
|
|
|
matrix_scan_quantum();
|
|
|
|
return 1;
|
|
}
|
|
|
|
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++) {
|
|
print_hex8(row);
|
|
print(": ");
|
|
print_bin_reverse8(matrix_get_row(row));
|
|
print("\n");
|
|
}
|
|
}
|
|
|
|
static void select_row(uint8_t row) {
|
|
/* Original 8051: P1 bits 0-3 (pins 1-4)
|
|
* Teensy++: PE0, PB7, PD0, PD1
|
|
*/
|
|
|
|
if (row & (1<<0)) {
|
|
PORTE |= (1<<6);
|
|
} else {
|
|
PORTE &= ~(1<<6);
|
|
}
|
|
|
|
if (row & (1<<1)) {
|
|
PORTB |= (1<<7);
|
|
} else {
|
|
PORTB &= ~(1<<7);
|
|
}
|
|
|
|
if (row & (1<<2)) {
|
|
PORTD |= (1<<0);
|
|
} else {
|
|
PORTD &= ~(1<<0);
|
|
}
|
|
|
|
if (row & (1<<3)) {
|
|
PORTD |= (1<<1);
|
|
} else {
|
|
PORTD &= ~(1<<1);
|
|
}
|
|
}
|
|
|
|
static matrix_row_t read_cols(void) {
|
|
/* Original 8051: P1 bits 4-7 (pins 5-8)
|
|
* Teensy++: PD bits 2-5
|
|
*/
|
|
|
|
return (PIND & 0b00111100) >> 2;
|
|
}
|