blob: 1803e0f94fad880c285a15fcac7ec6c345e5dd50 (
plain)
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
|
/**
* matrix.c
*
Copyright 2020 astro <yuleiz@gmail.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 "quantum.h"
#ifndef DEBOUNCE
# define DEBOUNCE 5
#endif
static uint8_t debouncing = DEBOUNCE;
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
static uint8_t read_rows(void);
static void init_rows(void);
static void init_cols(void);
static void unselect_cols(void);
static void select_col(uint8_t col);
__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) {}
void matrix_init(void)
{
//setPinOutput(F0);
//writePinHigh(F0);
setPinOutput(B4);
writePinLow(B4);
init_cols();
init_rows();
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++) {
select_col(col);
_delay_us(3);
uint8_t rows = read_rows();
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col);
bool curr_bit = rows & (1<<row);
if (prev_bit != curr_bit) {
matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
debouncing = DEBOUNCE;
}
}
unselect_cols();
}
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;
}
inline matrix_row_t matrix_get_row(uint8_t row)
{
return matrix[row];
}
void matrix_print(void)
{
print("\nr/c 0123456789ABCDEF\n");
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
xprintf("%02X: %032lb\n", row, bitrev32(matrix_get_row(row)));
}
}
/*
* Row pin configuration
* row: 0 1 2 3 4
* pin: PE6 PF6 PF7 PB7 PD4
*/
static void init_rows(void)
{
setPinInputHigh(E6);
setPinInputHigh(F6);
setPinInputHigh(F7);
setPinInputHigh(B7);
setPinInputHigh(D4);
}
static uint8_t read_rows(void)
{
return ((readPin(E6) ? 0 : (1 << 0)) |
(readPin(F6) ? 0 : (1 << 1)) |
(readPin(F7) ? 0 : (1 << 2)) |
(readPin(B7) ? 0 : (1 << 3)) |
(readPin(D4) ? 0 : (1 << 4)));
}
/*
* Columns 0 - 13
* These columns uses two 74LVC138 3 to 8 bit demultiplexers.
* EN Pin, PF5, PD6
*
* col / pin: PF0 PF1 PF4
* 0: 0 0 0
* 1: 1 0 0
* 2: 0 1 0
* 3: 1 1 0
* 4: 0 0 1
* 5: 1 0 1
* 6: 0 1 1
* PD2 PD3 PD5
* 7: 0 0 0
* 8: 1 0 0
* 9: 0 1 0
* 10: 1 1 0
* 11: 0 0 1
* 12: 1 0 1
* 13: 0 1 1
*
*/
static void init_cols(void)
{
setPinOutput(F0);
setPinOutput(F1);
setPinOutput(F4);
setPinOutput(F5);
setPinOutput(D2);
setPinOutput(D3);
setPinOutput(D5);
setPinOutput(D6);
unselect_cols();
}
static void unselect_cols(void)
{
writePinHigh(F0);
writePinHigh(F1);
writePinHigh(F4);
writePinHigh(F5);
writePinHigh(D2);
writePinHigh(D3);
writePinHigh(D5);
writePinHigh(D6);
}
static void select_col(uint8_t col) {
switch (col) {
case 0:
writePinLow(F0);
writePinLow(F1);
writePinLow(F4);
break;
case 1:
writePinHigh(F0);
writePinLow(F1);
writePinLow(F4);
break;
case 2:
writePinLow(F0);
writePinHigh(F1);
writePinLow(F4);
break;
case 3:
writePinHigh(F0);
writePinHigh(F1);
writePinLow(F4);
break;
case 4:
writePinLow(F0);
writePinLow(F1);
writePinHigh(F4);
break;
case 5:
writePinHigh(F0);
writePinLow(F1);
writePinHigh(F4);
break;
case 6:
writePinLow(F0);
writePinHigh(F1);
writePinHigh(F4);
break;
case 7:
writePinLow(D2);
writePinLow(D3);
writePinLow(D5);
break;
case 8:
writePinHigh(D2);
writePinLow(D3);
writePinLow(D5);
break;
case 9:
writePinLow(D2);
writePinHigh(D3);
writePinLow(D5);
break;
case 10:
writePinHigh(D2);
writePinHigh(D3);
writePinLow(D5);
break;
case 11:
writePinLow(D2);
writePinLow(D3);
writePinHigh(D5);
break;
case 12:
writePinHigh(D2);
writePinLow(D3);
writePinHigh(D5);
break;
case 13:
writePinLow(D2);
writePinHigh(D3);
writePinHigh(D5);
break;
}
}
|
