AMJ96 Support (#2651)
* Initial commit: Get things compiling * port the custom matrix code * Update readme * make second layer fully transparent * populate config.h identifiers with more correct information * Add in switch backlight support * Enable backlight LEDs, and change pin for RGB * port TMK version over * remove all that TMK stuff, it didn't work lol * Updated readme * Fix keymap - Change KEYMAP to LAYOUT - Adjust formatting of table * Edit readme to reflect NOTES * add info.json for QMK configurator support * Replaced placeholder with MechMerlin
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keyboards/amj96/matrix.c
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keyboards/amj96/matrix.c
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/*
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Copyright 2014 Kai Ryu <kai1103@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* scan matrix
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include <avr/io.h>
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#include <util/delay.h>
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#include "print.h"
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#include "debug.h"
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#include "util.h"
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#include "matrix.h"
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#ifdef UART_RGB_ENABLE
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#include "uart_rgb.h"
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#endif
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#ifndef DEBOUNCE
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# define DEBOUNCE 5
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#endif
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static uint8_t debouncing = DEBOUNCE;
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/* matrix state(1:on, 0:off) */
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static matrix_row_t matrix[MATRIX_ROWS];
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static matrix_row_t matrix_debouncing[MATRIX_ROWS];
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static matrix_row_t read_cols(void);
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static void init_cols(void);
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static void init_rows(void);
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static void unselect_rows(void);
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static void select_row(uint8_t row);
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inline
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uint8_t matrix_rows(void)
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{
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return MATRIX_ROWS;
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}
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inline
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uint8_t matrix_cols(void)
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{
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return MATRIX_COLS;
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}
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void matrix_init(void)
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{
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#ifdef UART_RGB_ENABLE
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uart_rgb_init();
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#endif
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// disable JTAG
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MCUCR = _BV(JTD);
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MCUCR = _BV(JTD);
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// 85 REST
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DDRD |= _BV(PD7);
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PORTD |= _BV(PD7);
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// initialize row and col
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init_rows();
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init_cols();
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// initialize matrix state: all keys off
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for (uint8_t i=0; i < MATRIX_ROWS; i++) {
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matrix[i] = 0;
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matrix_debouncing[i] = 0;
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}
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}
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uint8_t matrix_scan(void)
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{
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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select_row(i);
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_delay_us(30); // without this wait read unstable value.
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matrix_row_t cols = read_cols();
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if (matrix_debouncing[i] != cols) {
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matrix_debouncing[i] = cols;
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if (debouncing) {
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debug("bounce!: "); debug_hex(debouncing); debug("\n");
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}
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debouncing = DEBOUNCE;
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}
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unselect_rows();
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}
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if (debouncing) {
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if (--debouncing) {
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_delay_ms(1);
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} else {
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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matrix[i] = matrix_debouncing[i];
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}
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}
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}
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return 1;
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}
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bool matrix_is_modified(void)
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{
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if (debouncing) return false;
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return true;
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}
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inline
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bool matrix_is_on(uint8_t row, uint8_t col)
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{
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return (matrix[row] & ((matrix_row_t)1<<col));
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}
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inline
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matrix_row_t matrix_get_row(uint8_t row)
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{
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return matrix[row];
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}
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void matrix_print(void)
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{
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print("\nr/c 0123456789ABCDEF\n");
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for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
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phex(row); print(": ");
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pbin_reverse16(matrix_get_row(row));
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print("\n");
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}
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}
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uint8_t matrix_key_count(void)
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{
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uint8_t count = 0;
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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count += bitpop16(matrix[i]);
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}
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return count;
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}
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/* Column pin configuration
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* col: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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* pin: F7 F6 F5 F4 F1 F0 E6 D7 D6 D5 D1 D0 B7 B6 B0 C7
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* */
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static void init_cols(void)
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{
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// Input with pull-up(DDR:0, PORT:1)
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DDRF &= 0b00001100;
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PORTF |= 0b11110011;
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DDRD &= 0b00011100;
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PORTD |= 0b11100011;
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DDRB &= ~(_BV(PB6) | _BV(PB7)| _BV(PB0));
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PORTB |= (_BV(PB6) | _BV(PB7)| _BV(PB0));
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DDRE &= ~_BV(PE6);
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PORTE |= _BV(PE6);
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DDRC &= ~_BV(PC7);
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PORTC |= _BV(PC7);
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}
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static matrix_row_t read_cols(void)
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{
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return (PINF&_BV(PF7) ? 0 : (1<<0)) |
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(PINF&_BV(PF6) ? 0 : (1<<1)) |
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(PINF&_BV(PF5) ? 0 : (1<<2)) |
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(PINF&_BV(PF4) ? 0 : (1<<3)) |
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(PINF&_BV(PF1) ? 0 : (1<<4)) |
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(PINF&_BV(PF0) ? 0 : (1<<5)) |
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(PINE&_BV(PE6) ? 0 : (1<<6)) |
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(PIND&_BV(PD7) ? 0 : (1<<7)) |
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(PIND&_BV(PD6) ? 0 : (1<<8)) |
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(PIND&_BV(PD5) ? 0 : (1<<9)) |
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(PIND&_BV(PD1) ? 0 : (1<<10)) |
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(PIND&_BV(PD0) ? 0 : (1<<11)) |
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(PINB&_BV(PB7) ? 0 : (1<<12)) |
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(PINB&_BV(PB6) ? 0 : (1<<13)) |
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(PINB&_BV(PB0) ? 0 : (1<<14)) |
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(PINC&_BV(PC7) ? 0 : (1<<15));
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}
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/* Row pin configuration
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* row: 0 1 2 3 4 5 x
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* pin: B3 0 1 0 1 0 1 1
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* B2 0 0 1 1 0 0 1
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* B1 0 0 0 0 1 1 1
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*/
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static void init_rows(void)
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{
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DDRB |= (1<<PB1 | 1<<PB2 | 1<<PB3);
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}
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static void unselect_rows(void)
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{
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// Hi-Z(DDR:0, PORT:0) to unselect
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PORTB |= (1<<PB1);
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PORTB |= (1<<PB2);
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PORTB |= (1<<PB3);
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}
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static void select_row(uint8_t row)
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{
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// Output low(DDR:1, PORT:0) to select
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(row & (1<<0)) ? (PORTB |= (1<<PB3)) : (PORTB &= ~(1<<PB3));
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(row & (1<<1)) ? (PORTB |= (1<<PB2)) : (PORTB &= ~(1<<PB2));
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(row & (1<<2)) ? (PORTB |= (1<<PB1)) : (PORTB &= ~(1<<PB1));
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}
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