summaryrefslogtreecommitdiffstats
path: root/keyboards/sirius/uni660/rev2/matrix.c
blob: 3e231b33bc38665cc7726a24ef1854ac399369ef (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
/*
Copyright 2012 Jun Wako
Copyright 2014 Jack Humbert

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 "wait.h"
#include "print.h"
#include "debug.h"
#include "util.h"
#include "matrix.h"
#include "timer.h"
#include "debounce.h"

#if (MATRIX_COLS <= 8)
#    define print_matrix_header()  print("\nr/c 01234567\n")
#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
#    define matrix_bitpop(i)       bitpop(matrix[i])
#    define ROW_SHIFTER ((uint8_t)1)
#elif (MATRIX_COLS <= 16)
#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
#    define matrix_bitpop(i)       bitpop16(matrix[i])
#    define ROW_SHIFTER ((uint16_t)1)
#elif (MATRIX_COLS <= 32)
#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
#    define matrix_bitpop(i)       bitpop32(matrix[i])
#    define ROW_SHIFTER  ((uint32_t)1)
#endif

/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS];


__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) {
}

inline
uint8_t matrix_rows(void) {
    return MATRIX_ROWS;
}

inline
uint8_t matrix_cols(void) {
    return MATRIX_COLS;
}

void matrix_init(void) {
    debounce_init(MATRIX_ROWS);
    matrix_init_quantum();
}

uint8_t matrix_scan(void)
{
    bool matrix_has_changed = false;

    SERIAL_UART_INIT();

    uint32_t timeout = 0;

    //the s character requests the RF slave to send the matrix
    SERIAL_UART_DATA = 's';

    //trust the external keystates entirely, erase the last data
    uint8_t uart_data[17] = {0};

    //there are 16 bytes corresponding to 16 columns, and an end byte
    for (uint8_t i = 0; i < 17; i++) {
        //wait for the serial data, timeout if it's been too long
        //this only happened in testing with a loose wire, but does no
        //harm to leave it in here
        while(!SERIAL_UART_RXD_PRESENT){
            timeout++;
            if (timeout > 10000){
                break;
            }
        }
        uart_data[i] = SERIAL_UART_DATA;
    }

    //check for the end packet, the key state bytes use the LSBs, so 0xE0
    //will only show up here if the correct bytes were recieved
    if (uart_data[10] == 0xE0)
    {
        //shifting and transferring the keystates to the QMK matrix variable
        for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 8;
        }
    }

    debounce(matrix, matrix, MATRIX_ROWS, matrix_has_changed);

    matrix_scan_quantum();

    return matrix_has_changed;
}

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_matrix_header();

    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
        phex(row); print(": ");
        print_matrix_row(row);
        print("\n");
    }
}

uint8_t matrix_key_count(void)
{
    uint8_t count = 0;
    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
        count += matrix_bitpop(i);
    }
    return count;
}