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
|
/*
Copyright 2016 Fred Sundvik <fsundvik@gmail.com>
Jun Wako <wakojun@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 <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "hal.h"
#include "timer.h"
#include "wait.h"
#include "print.h"
#include "debug.h"
#include "matrix.h"
#include "serial_link/system/serial_link.h"
/*
* Infinity ErgoDox Pinusage:
* 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: { PTD1, PTD4, PTD5, PTD6, PTD7 }
* row: { PTB2, PTB3, PTB18, PTB19, PTC0, PTC9, PTC10, PTC11, PTD0 }
*/
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[LOCAL_MATRIX_ROWS];
static bool debouncing = false;
static uint16_t debouncing_time = 0;
void matrix_init(void)
{
/* Column(sense) */
palSetPadMode(GPIOD, 1, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOD, 4, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOD, 5, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOD, 6, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(GPIOD, 7, PAL_MODE_INPUT_PULLDOWN);
/* Row(strobe) */
palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 3, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 18, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOB, 19, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOC, 0, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOC, 9, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOC, 10, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOC, 11, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(GPIOD, 0, PAL_MODE_OUTPUT_PUSHPULL);
memset(matrix, 0, MATRIX_ROWS);
memset(matrix_debouncing, 0, LOCAL_MATRIX_ROWS);
}
uint8_t matrix_scan(void)
{
for (int row = 0; row < LOCAL_MATRIX_ROWS; row++) {
matrix_row_t data = 0;
// strobe row
switch (row) {
case 0: palSetPad(GPIOB, 2); break;
case 1: palSetPad(GPIOB, 3); break;
case 2: palSetPad(GPIOB, 18); break;
case 3: palSetPad(GPIOB, 19); break;
case 4: palSetPad(GPIOC, 0); break;
case 5: palSetPad(GPIOC, 9); break;
case 6: palSetPad(GPIOC, 10); break;
case 7: palSetPad(GPIOC, 11); break;
case 8: palSetPad(GPIOD, 0); break;
}
// need wait to settle pin state
// if you wait too short, or have a too high update rate
// the keyboard might freeze, or there might not be enough
// processing power to update the LCD screen properly.
// 20us, or two ticks at 100000Hz seems to be OK
wait_us(20);
// read col data: { PTD1, PTD4, PTD5, PTD6, PTD7 }
data = ((palReadPort(GPIOD) & 0xF0) >> 3) |
((palReadPort(GPIOD) & 0x02) >> 1);
// un-strobe row
switch (row) {
case 0: palClearPad(GPIOB, 2); break;
case 1: palClearPad(GPIOB, 3); break;
case 2: palClearPad(GPIOB, 18); break;
case 3: palClearPad(GPIOB, 19); break;
case 4: palClearPad(GPIOC, 0); break;
case 5: palClearPad(GPIOC, 9); break;
case 6: palClearPad(GPIOC, 10); break;
case 7: palClearPad(GPIOC, 11); break;
case 8: palClearPad(GPIOD, 0); break;
}
if (matrix_debouncing[row] != data) {
matrix_debouncing[row] = data;
debouncing = true;
debouncing_time = timer_read();
}
}
uint8_t offset = 0;
#ifdef MASTER_IS_ON_RIGHT
if (is_serial_link_master()) {
offset = MATRIX_ROWS - LOCAL_MATRIX_ROWS;
}
#endif
if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
for (int row = 0; row < LOCAL_MATRIX_ROWS; row++) {
matrix[offset + row] = matrix_debouncing[row];
}
debouncing = false;
}
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)
{
xprintf("\nr/c 01234567\n");
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
xprintf("%X0: ", row);
matrix_row_t data = matrix_get_row(row);
for (int col = 0; col < MATRIX_COLS; col++) {
if (data & (1<<col))
xprintf("1");
else
xprintf("0");
}
xprintf("\n");
}
}
void matrix_set_remote(matrix_row_t* rows, uint8_t index) {
uint8_t offset = 0;
#ifdef MASTER_IS_ON_RIGHT
offset = MATRIX_ROWS - LOCAL_MATRIX_ROWS * (index + 2);
#else
offset = LOCAL_MATRIX_ROWS * (index + 1);
#endif
for (int row = 0; row < LOCAL_MATRIX_ROWS; row++) {
matrix[offset + row] = rows[row];
}
}
|
