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
|
/*
Copyright 2018 Massdrop Inc.
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 "ctrl.h"
#include "d51_util.h"
#include "debug.h"
#include "clks.h"
#include <string.h>
matrix_row_t mlatest[MATRIX_ROWS];
matrix_row_t mlast[MATRIX_ROWS];
matrix_row_t mdebounced[MATRIX_ROWS];
uint8_t row_ports[] = { MATRIX_ROW_PORTS };
uint8_t row_pins[] = { MATRIX_ROW_PINS };
uint8_t col_ports[] = { MATRIX_COL_PORTS };
uint8_t col_pins[] = { MATRIX_COL_PINS };
uint32_t row_masks[2]; //NOTE: If more than PA PB used in the future, adjust code to accomodate
__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)
{
memset(mlatest, 0, MATRIX_ROWS * sizeof(matrix_row_t));
memset(mlast, 0, MATRIX_ROWS * sizeof(matrix_row_t));
memset(mdebounced, 0, MATRIX_ROWS * sizeof(matrix_row_t));
row_masks[PA] = 0;
row_masks[PB] = 0;
uint8_t row;
for (row = 0; row < MATRIX_ROWS; row++)
{
PORT->Group[row_ports[row]].DIRCLR.reg = 1 << row_pins[row]; //Input
PORT->Group[row_ports[row]].OUTCLR.reg = 1 << row_pins[row]; //Low
PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.INEN = 1; //Input Enable,
PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.PULLEN = 1; //Pull Enable
row_masks[row_ports[row]] |= 1 << row_pins[row]; //Add pin to proper row mask
}
uint8_t col;
for (col = 0; col < MATRIX_COLS; col++)
{
PORT->Group[col_ports[col]].DIRSET.reg = 1 << col_pins[col]; //Output
PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; //Low
}
matrix_init_quantum();
}
uint64_t mdebouncing = 0;
uint8_t matrix_scan(void)
{
uint8_t mchanged;
uint8_t row;
uint8_t col;
uint32_t scans[2]; //PA PB
if (timer_read64() < mdebouncing) return 1; //mdebouncing == 0 when no debouncing active
memset(mlatest, 0, MATRIX_ROWS * sizeof(matrix_row_t)); //Zero the result buffer
for (col = 0; col < MATRIX_COLS; col++)
{
PORT->Group[col_ports[col]].OUTSET.reg = 1 << col_pins[col]; //Set col output
wait_us(1); //Delay for output
scans[PA] = PORT->Group[PA].IN.reg & row_masks[PA]; //Read PA row pins data
scans[PB] = PORT->Group[PB].IN.reg & row_masks[PB]; //Read PB row pins data
PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; //Clear col output
for (row = 0; row < MATRIX_ROWS; row++)
{
//Move scan bits from scans array into proper row bit locations
if (scans[row_ports[row]] & (1 << row_pins[row]))
mlatest[row] |= 1 << col;
}
}
mchanged = 0; //Default to no matrix change since last
for (row = 0; row < MATRIX_ROWS; row++)
{
if (mlast[row] != mlatest[row])
mchanged = 1;
mlast[row] = mlatest[row];
}
if (!mchanged)
{
for (row = 0; row < MATRIX_ROWS; row++)
mdebounced[row] = mlatest[row];
mdebouncing = 0;
}
else
{
//Begin or extend debounce on change
mdebouncing = timer_read64() + DEBOUNCING_DELAY;
}
matrix_scan_quantum();
return 1;
}
matrix_row_t matrix_get_row(uint8_t row)
{
return mdebounced[row];
}
void matrix_print(void)
{
char buf[(MATRIX_COLS+8)*(MATRIX_ROWS+1)] = "R C";
char *pbuf = buf+3;
uint32_t cols;
uint32_t rows;
matrix_row_t row;
for (cols = 1; cols <= MATRIX_COLS; cols++)
{
*pbuf = (cols%10)+48;
pbuf++;
}
*pbuf = '\r'; pbuf++;
*pbuf = '\n'; pbuf++;
for (rows = 1; rows <= MATRIX_ROWS; rows++)
{
row = matrix_get_row(rows-1);
if (rows < 10) { *pbuf = rows+48; pbuf++; *pbuf = ' '; pbuf++; *pbuf = ' '; pbuf++; }
else { *pbuf = (rows/10)+48; pbuf++; *pbuf = (rows%10)+48; pbuf++; *pbuf = ' '; pbuf++; }
for (cols = 0; cols < MATRIX_COLS; cols++)
{
if (row & 1 << cols) *pbuf = 'X';
else *pbuf = '.';
pbuf++;
}
*pbuf = '\r'; pbuf++;
*pbuf = '\n'; pbuf++;
}
*pbuf = 0;
dprint(buf);
}
|
