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-rw-r--r--keyboards/ergodox_infinity/matrix.c172
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diff --git a/keyboards/ergodox_infinity/matrix.c b/keyboards/ergodox_infinity/matrix.c
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1/*
2Copyright 2016 Fred Sundvik <fsundvik@gmail.com>
3Jun Wako <wakojun@gmail.com>
4
5This program is free software: you can redistribute it and/or modify
6it under the terms of the GNU General Public License as published by
7the Free Software Foundation, either version 2 of the License, or
8(at your option) any later version.
9
10This program is distributed in the hope that it will be useful,
11but WITHOUT ANY WARRANTY; without even the implied warranty of
12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13GNU General Public License for more details.
14
15You should have received a copy of the GNU General Public License
16along with this program. If not, see <http://www.gnu.org/licenses/>.
17*/
18#include <stdint.h>
19#include <stdbool.h>
20#include <string.h>
21#include <hal.h>
22#include "timer.h"
23#include "wait.h"
24#include "print.h"
25#include "debug.h"
26#include "matrix.h"
27#include "keyboard.h"
28#include "serial_link/system/serial_link.h"
29
30
31/*
32 * Infinity ErgoDox Pinusage:
33 * Column pins are input with internal pull-down. Row pins are output and strobe with high.
34 * Key is high or 1 when it turns on.
35 *
36 * col: { PTD1, PTD4, PTD5, PTD6, PTD7 }
37 * row: { PTB2, PTB3, PTB18, PTB19, PTC0, PTC9, PTC10, PTC11, PTD0 }
38 */
39/* matrix state(1:on, 0:off) */
40static matrix_row_t matrix[MATRIX_ROWS];
41static matrix_row_t matrix_debouncing[LOCAL_MATRIX_ROWS];
42static bool debouncing = false;
43static uint16_t debouncing_time = 0;
44
45
46void matrix_init(void)
47{
48 /* Row(sense) */
49 palSetPadMode(GPIOD, 1, PAL_MODE_INPUT_PULLDOWN);
50 palSetPadMode(GPIOD, 4, PAL_MODE_INPUT_PULLDOWN);
51 palSetPadMode(GPIOD, 5, PAL_MODE_INPUT_PULLDOWN);
52 palSetPadMode(GPIOD, 6, PAL_MODE_INPUT_PULLDOWN);
53 palSetPadMode(GPIOD, 7, PAL_MODE_INPUT_PULLDOWN);
54
55 /* Column(strobe) */
56 palSetPadMode(GPIOB, 2, PAL_MODE_OUTPUT_PUSHPULL);
57 palSetPadMode(GPIOB, 3, PAL_MODE_OUTPUT_PUSHPULL);
58 palSetPadMode(GPIOB, 18, PAL_MODE_OUTPUT_PUSHPULL);
59 palSetPadMode(GPIOB, 19, PAL_MODE_OUTPUT_PUSHPULL);
60 palSetPadMode(GPIOC, 0, PAL_MODE_OUTPUT_PUSHPULL);
61 palSetPadMode(GPIOC, 9, PAL_MODE_OUTPUT_PUSHPULL);
62 palSetPadMode(GPIOC, 10, PAL_MODE_OUTPUT_PUSHPULL);
63 palSetPadMode(GPIOC, 11, PAL_MODE_OUTPUT_PUSHPULL);
64 palSetPadMode(GPIOD, 0, PAL_MODE_OUTPUT_PUSHPULL);
65
66 memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t));
67 memset(matrix_debouncing, 0, LOCAL_MATRIX_ROWS * sizeof(matrix_row_t));
68
69 matrix_init_quantum();
70}
71
72uint8_t matrix_scan(void)
73{
74 for (int row = 0; row < LOCAL_MATRIX_ROWS; row++) {
75 matrix_row_t data = 0;
76
77 // strobe row
78 switch (row) {
79 case 0: palSetPad(GPIOB, 2); break;
80 case 1: palSetPad(GPIOB, 3); break;
81 case 2: palSetPad(GPIOB, 18); break;
82 case 3: palSetPad(GPIOB, 19); break;
83 case 4: palSetPad(GPIOC, 0); break;
84 case 5: palSetPad(GPIOC, 9); break;
85 case 6: palSetPad(GPIOC, 10); break;
86 case 7: palSetPad(GPIOC, 11); break;
87 case 8: palSetPad(GPIOD, 0); break;
88 }
89
90 // need wait to settle pin state
91 // if you wait too short, or have a too high update rate
92 // the keyboard might freeze, or there might not be enough
93 // processing power to update the LCD screen properly.
94 // 20us, or two ticks at 100000Hz seems to be OK
95 wait_us(20);
96
97 // read col data: { PTD1, PTD4, PTD5, PTD6, PTD7 }
98 data = ((palReadPort(GPIOD) & 0xF0) >> 3) |
99 ((palReadPort(GPIOD) & 0x02) >> 1);
100
101 // un-strobe row
102 switch (row) {
103 case 0: palClearPad(GPIOB, 2); break;
104 case 1: palClearPad(GPIOB, 3); break;
105 case 2: palClearPad(GPIOB, 18); break;
106 case 3: palClearPad(GPIOB, 19); break;
107 case 4: palClearPad(GPIOC, 0); break;
108 case 5: palClearPad(GPIOC, 9); break;
109 case 6: palClearPad(GPIOC, 10); break;
110 case 7: palClearPad(GPIOC, 11); break;
111 case 8: palClearPad(GPIOD, 0); break;
112 }
113
114 if (matrix_debouncing[row] != data) {
115 matrix_debouncing[row] = data;
116 debouncing = true;
117 debouncing_time = timer_read();
118 }
119 }
120
121 uint8_t offset = 0;
122 if (is_serial_link_master() && !is_keyboard_left()) {
123 offset = MATRIX_ROWS - LOCAL_MATRIX_ROWS;
124 }
125
126 if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
127 for (int row = 0; row < LOCAL_MATRIX_ROWS; row++) {
128 matrix[offset + row] = matrix_debouncing[row];
129 }
130 debouncing = false;
131 }
132 matrix_scan_quantum();
133 return 1;
134}
135
136bool matrix_is_on(uint8_t row, uint8_t col)
137{
138 return (matrix[row] & (1<<col));
139}
140
141matrix_row_t matrix_get_row(uint8_t row)
142{
143 return matrix[row];
144}
145
146void matrix_print(void)
147{
148 xprintf("\nr/c 01234567\n");
149 for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
150 xprintf("%X0: ", row);
151 matrix_row_t data = matrix_get_row(row);
152 for (int col = 0; col < MATRIX_COLS; col++) {
153 if (data & (1<<col))
154 xprintf("1");
155 else
156 xprintf("0");
157 }
158 xprintf("\n");
159 }
160}
161
162void matrix_set_remote(matrix_row_t* rows, uint8_t index) {
163 uint8_t offset = 0;
164 if (is_keyboard_left()) {
165 offset = LOCAL_MATRIX_ROWS * (index + 1);
166 } else {
167 offset = MATRIX_ROWS - LOCAL_MATRIX_ROWS * (index + 2);
168 }
169 for (int row = 0; row < LOCAL_MATRIX_ROWS; row++) {
170 matrix[offset + row] = rows[row];
171 }
172}
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