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
|
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "hal.h"
#include "timer.h"
#include "wait.h"
#include "printf.h"
#include "backlight.h"
#include "matrix.h"
/* Clueboard 60%
*
* Column pins are input with internal pull-down.
* Row pins are output and strobe with high.
* Key is high or 1 when it turns on.
*
* col: { PA2, PA3, PA6, PB14, PB15, PA8, PA9, PA7, PB3, PB4, PC15, PC14, PC13, PB5, PB6 }
* row: { PB0, PB1, PB2, PA15, PA10 }
*/
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_COLS];
static bool debouncing = false;
static uint16_t debouncing_time = 0;
__attribute__ ((weak))
void matrix_init_user(void) {}
__attribute__ ((weak))
void matrix_scan_user(void) {}
__attribute__ ((weak))
void matrix_init_kb(void) {
matrix_init_user();
}
__attribute__ ((weak))
void matrix_scan_kb(void) {
matrix_scan_user();
}
void matrix_init(void) {
printf("matrix init\n");
//debug_matrix = true;
/* Column(sense) */
palSetPadMode(GPIOA, 2, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOA, 3, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOA, 6, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 14, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 15, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOA, 8, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOA, 9, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOA, 7, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 3, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 4, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOC, 15, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOC, 14, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOC, 13, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 5, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 6, PAL_MODE_OUTPUT_PUSHPULL);
/* Row(strobe) */
palSetPadMode(GPIOB, 0, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOB, 1, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOB, 2, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOA, 15, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOA, 10, PAL_MODE_INPUT_PULLDOWN);
memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t));
memset(matrix_debouncing, 0, MATRIX_COLS * sizeof(matrix_row_t));
palClearPad(GPIOB, 7); // Turn off capslock
matrix_init_quantum();
}
uint8_t matrix_scan(void) {
for (int col = 0; col < MATRIX_COLS; col++) {
matrix_row_t data = 0;
// strobe col { PA2, PA3, PA6, PB14, PB15, PA8, PA9, PA7, PB3, PB4, PC14, PC15, PC13, PB5, PB6 }
switch (col) {
case 0: palSetPad(GPIOA, 2); break;
case 1: palSetPad(GPIOA, 3); break;
case 2: palSetPad(GPIOA, 6); break;
case 3: palSetPad(GPIOB, 14); break;
case 4: palSetPad(GPIOB, 15); break;
case 5: palSetPad(GPIOA, 8); break;
case 6: palSetPad(GPIOA, 9); break;
case 7: palSetPad(GPIOA, 7); break;
case 8: palSetPad(GPIOB, 3); break;
case 9: palSetPad(GPIOB, 4); break;
case 10: palSetPad(GPIOC, 15); break;
case 11: palSetPad(GPIOC, 14); break;
case 12: palSetPad(GPIOC, 13); break;
case 13: palSetPad(GPIOB, 5); break;
case 14: palSetPad(GPIOB, 6); break;
}
// need wait to settle pin state
wait_us(20);
// read row data { PB0, PB1, PB2, PA15, PA10 }
data = (
(palReadPad(GPIOB, 0) << 0 ) |
(palReadPad(GPIOB, 1) << 1 ) |
(palReadPad(GPIOB, 2) << 2 ) |
(palReadPad(GPIOA, 15) << 3 ) |
(palReadPad(GPIOA, 10) << 4 )
);
// unstrobe col { PA2, PA3, PA6, PB14, PB15, PA8, PA9, PA7, PB3, PB4, PC15, PC14, PC13, PB5, PB6 }
switch (col) {
case 0: palClearPad(GPIOA, 2); break;
case 1: palClearPad(GPIOA, 3); break;
case 2: palClearPad(GPIOA, 6); break;
case 3: palClearPad(GPIOB, 14); break;
case 4: palClearPad(GPIOB, 15); break;
case 5: palClearPad(GPIOA, 8); break;
case 6: palClearPad(GPIOA, 9); break;
case 7: palClearPad(GPIOA, 7); break;
case 8: palClearPad(GPIOB, 3); break;
case 9: palClearPad(GPIOB, 4); break;
case 10: palClearPad(GPIOC, 15); break;
case 11: palClearPad(GPIOC, 14); break;
case 12: palClearPad(GPIOC, 13); break;
case 13: palClearPad(GPIOB, 5); break;
case 14: palClearPad(GPIOB, 6); break;
}
if (matrix_debouncing[col] != data) {
matrix_debouncing[col] = data;
debouncing = true;
debouncing_time = timer_read();
}
}
if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
for (int row = 0; row < MATRIX_ROWS; row++) {
matrix[row] = 0;
for (int col = 0; col < MATRIX_COLS; col++) {
matrix[row] |= ((matrix_debouncing[col] & (1 << row) ? 1 : 0) << col);
}
}
debouncing = false;
}
matrix_scan_quantum();
return 1;
}
bool matrix_is_on(uint8_t row, uint8_t col) {
return (matrix[row] & (1<<col));
}
matrix_row_t matrix_get_row(uint8_t row) {
return matrix[row];
}
void matrix_print(void) {
printf("\nr/c 01234567\n");
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
printf("%X0: ", row);
matrix_row_t data = matrix_get_row(row);
for (int col = 0; col < MATRIX_COLS; col++) {
if (data & (1<<col))
printf("1");
else
printf("0");
}
printf("\n");
}
}
|
