1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
/* Copyright 2012 Jun Wako <wakojun@gmail.com>: TMK Matrix
* Copyright 2018 bakageta <amo@bakageta.com>
*
* This is heavily based on hid_liber/board.{c|h}.
* https://github.com/BathroomEpiphanies/AVR-Keyboard
*
* Copyright (c) 2012 Fredrik Atmer, Bathroom Epiphanies Inc
* http://bathroomepiphanies.com
*
* 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 <util/delay.h>
#include "wait.h"
#include "print.h"
#include "debug.h"
#include "util.h"
#include "matrix.h"
#include "timer.h"
#ifndef DEBOUNCE
# define DEBOUNCE 5
#endif
static uint8_t debouncing = DEBOUNCE;
// bit array of key state(1:on, 0:off)
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
#define _DDRA (uint8_t *const)&DDRA
#define _DDRB (uint8_t *const)&DDRB
#define _DDRC (uint8_t *const)&DDRC
#define _DDRD (uint8_t *const)&DDRD
#define _DDRE (uint8_t *const)&DDRE
#define _DDRF (uint8_t *const)&DDRF
#define _PINA (uint8_t *const)&PINA
#define _PINB (uint8_t *const)&PINB
#define _PINC (uint8_t *const)&PINC
#define _PIND (uint8_t *const)&PIND
#define _PINE (uint8_t *const)&PINE
#define _PINF (uint8_t *const)&PINF
#define _PORTA (uint8_t *const)&PORTA
#define _PORTB (uint8_t *const)&PORTB
#define _PORTC (uint8_t *const)&PORTC
#define _PORTD (uint8_t *const)&PORTD
#define _PORTE (uint8_t *const)&PORTE
#define _PORTF (uint8_t *const)&PORTF
#define _BIT0 0x01
#define _BIT1 0x02
#define _BIT2 0x04
#define _BIT3 0x08
#define _BIT4 0x10
#define _BIT5 0x20
#define _BIT6 0x40
#define _BIT7 0x80
/* Specifies the ports and pin numbers for the rows */
static
uint8_t *const row_ddr[MATRIX_ROWS] = {
_DDRB, _DDRB,
_DDRC, _DDRC,
_DDRD, _DDRD, _DDRD, _DDRD, _DDRD, _DDRD, _DDRD, _DDRD,
_DDRF, _DDRF, _DDRF, _DDRF, _DDRF, _DDRF};
static
uint8_t *const row_port[MATRIX_ROWS] = {
_PORTB, _PORTB,
_PORTC, _PORTC,
_PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD,
_PORTF, _PORTF, _PORTF, _PORTF, _PORTF, _PORTF};
static
uint8_t *const row_pin[MATRIX_ROWS] = {
_PINB, _PINB,
_PINC, _PINC,
_PIND, _PIND, _PIND, _PIND, _PIND, _PIND, _PIND, _PIND,
_PINF, _PINF, _PINF, _PINF, _PINF, _PINF};
static
const uint8_t row_bit[MATRIX_ROWS] = {
_BIT4, _BIT7,
_BIT6, _BIT7,
_BIT0, _BIT1, _BIT2, _BIT3, _BIT4, _BIT5, _BIT6, _BIT7,
_BIT0, _BIT1, _BIT4, _BIT5, _BIT6, _BIT7};
static
const uint8_t mask = 0x0E;
/* Specifies the ports and pin numbers for the columns */
static
const uint8_t col_bit[MATRIX_COLS] = { 0x00, 0x02, 0x04, 0x06, 0x08, 0x0A, 0x0C, 0x0E};
__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) {
}
static
inline void pull_column(int col) {
PORTB = col_bit[col] | (PORTB & ~mask);
}
static
inline void release_column(int col) {
}
/* PORTB is set as input with pull-up resistors
PORTC,D,E,F are set to high output */
static
void setup_io_pins(void) {
uint8_t row;
DDRB |= 0x0E;
PORTB &= ~0x0E;
for(row = 0; row < MATRIX_ROWS; row++) {
*row_ddr[row] &= ~row_bit[row];
*row_port[row] &= ~row_bit[row];
}
}
static
void setup_leds(void) {
DDRB |= 0x60;
PORTB |= 0x60;
}
inline
uint8_t matrix_rows(void)
{
return MATRIX_ROWS;
}
inline
uint8_t matrix_cols(void)
{
return MATRIX_COLS;
}
void matrix_init(void)
{
// initialize row and col
setup_io_pins();
setup_leds();
// 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)
{
for (uint8_t col = 0; col < MATRIX_COLS; col++) { // 0-7
pull_column(col); // output hi on theline
_delay_us(5); // without this wait it won't read stable value.
for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-17
bool prev_bit = matrix_debouncing[row] & (1<<col);
bool curr_bit = *row_pin[row] & row_bit[row];
if (prev_bit != curr_bit) {
matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
if (debouncing) {
dprintf("bounce!: %02X\n", debouncing);
}
debouncing = DEBOUNCE;
}
}
release_column(col);
}
if (debouncing) {
if (--debouncing) {
_delay_ms(1);
} else {
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = matrix_debouncing[i];
}
}
}
matrix_scan_quantum();
return 1;
}
bool matrix_is_modified(void)
{
// NOTE: no longer used
return true;
}
inline
bool matrix_has_ghost(void)
{
return false;
}
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 01234567\n");
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
phex(row); print(": ");
pbin_reverse(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++) {
for (uint8_t j = 0; j < MATRIX_COLS; j++) {
if (matrix_is_on(i, j))
count++;
}
}
return count;
}
|
