2 Copyright 2016-2017 Ralf Schmitt <ralf@bunkertor.net> Rasmus Schults <rasmusx@gmail.com>
3 This program is free software: you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation, either version 2 of the License, or
6 (at your option) any later version.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program. If not, see <http://www.gnu.org/licenses/>.
17 #include <util/delay.h>
25 static uint8_t debouncing
= DEBOUNCING_DELAY
;
27 /* matrix state(1:on, 0:off) */
28 static matrix_row_t matrix
[MATRIX_ROWS
];
29 static matrix_row_t matrix_debouncing
[MATRIX_ROWS
];
31 static uint8_t read_rows(void);
32 static uint8_t read_fwkey(void);
33 static void init_rows(void);
34 static void unselect_cols(void);
35 static void select_col(uint8_t col
);
38 __attribute__ ((weak
))
39 void matrix_init_kb(void) {
43 __attribute__ ((weak
))
44 void matrix_scan_kb(void) {
48 __attribute__ ((weak
))
49 void matrix_init_user(void) {
52 __attribute__ ((weak
))
53 void matrix_scan_user(void) {
56 void matrix_init(void) {
68 for (uint8_t i
=0; i
< MATRIX_ROWS
; i
++) {
70 matrix_debouncing
[i
] = 0;
73 matrix_init_quantum();
76 uint8_t matrix_scan(void) {
77 for (uint8_t col
= 0; col
< MATRIX_COLS
; col
++) {
81 uint8_t rows
= read_rows();
85 for (uint8_t row
= 0; row
< MATRIX_ROWS
; row
++) {
86 bool prev_bit
= matrix_debouncing
[row
] & ((matrix_row_t
)1<<col
);
87 bool curr_bit
= rows
& (1<<row
);
88 if (prev_bit
!= curr_bit
) {
89 matrix_debouncing
[row
] ^= ((matrix_row_t
)1<<col
);
91 dprint("bounce!: "); dprintf("%02X", debouncing
); dprintln();
93 debouncing
= DEBOUNCING_DELAY
;
103 for (uint8_t i
= 0; i
< MATRIX_ROWS
; i
++) {
104 matrix
[i
] = matrix_debouncing
[i
];
109 matrix_scan_quantum();
113 inline matrix_row_t
matrix_get_row(uint8_t row
) {
117 void matrix_print(void) {
118 print("\nr/c 0123456789ABCDEF\n");
119 for (uint8_t row
= 0; row
< MATRIX_ROWS
; row
++) {
120 xprintf("%02X: %032lb\n", row
, bitrev32(matrix_get_row(row
)));
124 /* Row pin configuration
126 * pin: PB7 PD0 PD1 PD2 PD3 PD5
128 * Esc uses its own pin PE2
130 static void init_rows(void) {
132 PORTB
&= ~0b10000000;
135 PORTD
&= ~0b00101111;
141 static uint8_t read_rows() {
142 return (PINB
&(1<<7) ? (1<<0) : 0) |
143 (PIND
&(1<<0) ? (1<<1) : 0) |
144 (PIND
&(1<<1) ? (1<<2) : 0) |
145 (PIND
&(1<<2) ? (1<<3) : 0) |
146 (PIND
&(1<<3) ? (1<<4) : 0) |
147 (PIND
&(1<<5) ? (1<<5) : 0);
150 static uint8_t read_fwkey(void)
152 return PINE
&(1<<2) ? 0 : (1<<0);
156 * These columns uses two 74HC237D 3 to 8 bit demultiplexers.
157 * col / pin: PC6 PB6 PF0 PF1 PC7
184 static void unselect_cols(void) {
186 PORTB
&= ~0b01110000;
188 DDRC
|= (1<<6) | (1<<7);
189 PORTC
&= ~((1<<6) | (1<<7));
191 DDRF
|= (1<<0) | (1<<1);
192 PORTF
&= ~((1<<0) | (1<<1));
198 static void select_col(uint8_t col
) {
213 PORTF
|= (1<<0) | (1<<1);
231 PORTF
|= (1<<0) | (1<<1);
247 PORTF
|= (1<<0) | (1<<1);
265 PORTF
|= (1<<0) | (1<<1);