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-rw-r--r--keyboards/winkeyless/bface/matrix.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/keyboards/winkeyless/bface/matrix.c b/keyboards/winkeyless/bface/matrix.c
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--- a/keyboards/winkeyless/bface/matrix.c
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@@ -1,113 +0,0 @@
1/*
2Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
3
4This program is free software: you can redistribute it and/or modify
5it under the terms of the GNU General Public License as published by
6the Free Software Foundation, either version 2 of the License, or
7(at your option) any later version.
8
9This program is distributed in the hope that it will be useful,
10but WITHOUT ANY WARRANTY; without even the implied warranty of
11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12GNU General Public License for more details.
13
14You should have received a copy of the GNU General Public License
15along with this program. If not, see <http://www.gnu.org/licenses/>.
16*/
17
18#include <avr/io.h>
19#include <util/delay.h>
20
21#include "matrix.h"
22
23#ifndef DEBOUNCE
24# define DEBOUNCE 5
25#endif
26
27static uint8_t debouncing = DEBOUNCE;
28
29static matrix_row_t matrix[MATRIX_ROWS];
30static matrix_row_t matrix_debouncing[MATRIX_ROWS];
31
32void matrix_init(void) {
33 // all outputs for rows high
34 DDRB = 0xFF;
35 PORTB = 0xFF;
36 // all inputs for columns
37 DDRA = 0x00;
38 DDRC &= ~(0x111111<<2);
39 DDRD &= ~(1<<PIND7);
40 // all columns are pulled-up
41 PORTA = 0xFF;
42 PORTC |= (0b111111<<2);
43 PORTD |= (1<<PIND7);
44
45 // initialize matrix state: all keys off
46 for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
47 matrix[row] = 0x00;
48 matrix_debouncing[row] = 0x00;
49 }
50
51 // activate backlight
52 //PORTD |= (1 << 4);
53 //_SFR_IO8(0x09) |= (1 << 4); //_BV(0x94 & 0xF);
54 //
55 // this is the code that *should* be executed in quantum.c
56 _SFR_IO8(0x12) |= _BV(0x4);
57}
58
59void matrix_set_row_status(uint8_t row) {
60 DDRB = (1 << row);
61 PORTB = ~(1 << row);
62}
63
64uint8_t bit_reverse(uint8_t x) {
65 x = ((x >> 1) & 0x55) | ((x << 1) & 0xaa);
66 x = ((x >> 2) & 0x33) | ((x << 2) & 0xcc);
67 x = ((x >> 4) & 0x0f) | ((x << 4) & 0xf0);
68 return x;
69}
70
71uint8_t matrix_scan(void) {
72 for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
73 matrix_set_row_status(row);
74 _delay_us(5);
75
76 matrix_row_t cols = (
77 // cols 0..7, PORTA 0 -> 7
78 (~PINA) & 0xFF
79 ) | (
80 // cols 8..13, PORTC 7 -> 0
81 bit_reverse((~PINC) & 0xFF) << 8
82 ) | (
83 // col 14, PORTD 7
84 ((~PIND) & (1 << PIND7)) << 7
85 );
86
87 if (matrix_debouncing[row] != cols) {
88 matrix_debouncing[row] = cols;
89 debouncing = DEBOUNCE;
90 }
91 }
92
93 if (debouncing) {
94 if (--debouncing) {
95 _delay_ms(1);
96 } else {
97 for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
98 matrix[i] = matrix_debouncing[i];
99 }
100 }
101 }
102
103 matrix_scan_user();
104
105 return 1;
106}
107
108inline matrix_row_t matrix_get_row(uint8_t row) {
109 return matrix[row];
110}
111
112void matrix_print(void) {
113}