fc980c: Fix for pin config of TMK controller
[tmk_keyboard.git] / keyboard / fc980c / fc980c.c
CommitLineData
86225e25 1/*
2Copyright 2017 Jun Wako <wakojun@gmail.com>
3
4This program is free software: you can redistribute it and/or modify
5it under the terms of the GNU General Public License as published by
6the Free Software Foundation, either version 2 of the License, or
7(at your option) any later version.
8
9This program is distributed in the hope that it will be useful,
10but WITHOUT ANY WARRANTY; without even the implied warranty of
11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12GNU General Public License for more details.
13
14You should have received a copy of the GNU General Public License
15along with this program. If not, see <http://www.gnu.org/licenses/>.
16*/
17
18/*
19 * scan matrix
20 */
21#include <stdint.h>
22#include <stdbool.h>
23#include <util/delay.h>
24#include "print.h"
25#include "debug.h"
26#include "util.h"
27#include "timer.h"
28#include "matrix.h"
29#include "led.h"
30#include "fc980c.h"
31
32
33static uint32_t matrix_last_modified = 0;
34
35// matrix state buffer(1:on, 0:off)
36static matrix_row_t *matrix;
37static matrix_row_t *matrix_prev;
38static matrix_row_t _matrix0[MATRIX_ROWS];
39static matrix_row_t _matrix1[MATRIX_ROWS];
40
41
42void matrix_init(void)
43{
44#if 0
45 debug_enable = true;
46 debug_keyboard = true;
47 debug_matrix = true;
48#endif
49 debug_enable = true;
50 debug_matrix = true;
51
52 KEY_INIT();
53
3d3bcd8a 54 // LEDs on NumLock, CapsLock and ScrollLock(PB4, PB5, PB6)
55 DDRB |= (1<<4) | (1<<5) | (1<<6);
56 PORTB |= (1<<4) | (1<<5) | (1<<6);
86225e25 57
58 // initialize matrix state: all keys off
59 for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
60 for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0x00;
61 matrix = _matrix0;
62 matrix_prev = _matrix1;
63}
64
65uint8_t matrix_scan(void)
66{
67 matrix_row_t *tmp;
68
69 tmp = matrix_prev;
70 matrix_prev = matrix;
71 matrix = tmp;
72
73 uint8_t row, col;
74 for (col = 0; col < MATRIX_COLS; col++) {
75 SET_COL(col);
76 for (row = 0; row < MATRIX_ROWS; row++) {
77 //KEY_SELECT(row, col);
78 SET_ROW(row);
79 _delay_us(2);
80
81 // Not sure this is needed. This just emulates HHKB controller's behaviour.
82 if (matrix_prev[row] & (1<<col)) {
83 KEY_HYS_ON();
84 }
85 _delay_us(10);
86
87 // NOTE: KEY_STATE is valid only in 20us after KEY_ENABLE.
88 // If V-USB interrupts in this section we could lose 40us or so
89 // and would read invalid value from KEY_STATE.
90 uint8_t last = TIMER_RAW;
91
92 KEY_ENABLE();
93
94 // Wait for KEY_STATE outputs its value.
95 _delay_us(2);
96
97 if (KEY_STATE()) {
98 matrix[row] &= ~(1<<col);
99 } else {
100 matrix[row] |= (1<<col);
101 }
102
103 // Ignore if this code region execution time elapses more than 20us.
104 // MEMO: 20[us] * (TIMER_RAW_FREQ / 1000000)[count per us]
105 // MEMO: then change above using this rule: a/(b/c) = a*1/(b/c) = a*(c/b)
106 if (TIMER_DIFF_RAW(TIMER_RAW, last) > 20/(1000000/TIMER_RAW_FREQ)) {
107 matrix[row] = matrix_prev[row];
108 }
109
110 _delay_us(5);
111 KEY_HYS_OFF();
112 KEY_UNABLE();
113
114 // NOTE: KEY_STATE keep its state in 20us after KEY_ENABLE.
115 // This takes 25us or more to make sure KEY_STATE returns to idle state.
116 _delay_us(75);
117 }
118 if (matrix[row] ^ matrix_prev[row]) {
119 matrix_last_modified = timer_read32();
120 }
121 }
122 return 1;
123}
124
125inline
126matrix_row_t matrix_get_row(uint8_t row)
127{
128 return matrix[row];
129}
130
131void led_set(uint8_t usb_led)
132{
133 if (usb_led & (1<<USB_LED_NUM_LOCK)) {
3d3bcd8a 134 PORTB |= (1<<4);
86225e25 135 } else {
3d3bcd8a 136 PORTB &= ~(1<<4);
86225e25 137 }
138 if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
139 PORTB |= (1<<5);
140 } else {
141 PORTB &= ~(1<<5);
142 }
143 if (usb_led & (1<<USB_LED_SCROLL_LOCK)) {
144 PORTB |= (1<<6);
145 } else {
146 PORTB &= ~(1<<6);
147 }
148}
149
150
151#ifdef UNIMAP_ENABLE
152#include <avr/pgmspace.h>
153#include "unimap.h"
154
155const uint8_t PROGMEM unimap_trans[MATRIX_ROWS][MATRIX_COLS] = {
156 { UNIMAP_LEFT, UNIMAP_RCTL, UNIMAP_RALT, UNIMAP_NO , UNIMAP_DOWN, UNIMAP_PDOT, UNIMAP_RGHT, UNIMAP_P0 ,
157 UNIMAP_X , UNIMAP_LGUI, UNIMAP_GRV , UNIMAP_V , UNIMAP_NO , UNIMAP_ESC , UNIMAP_M , UNIMAP_SPC },
158 { UNIMAP_RGUI, UNIMAP_DOT , UNIMAP_NO , UNIMAP_NO , UNIMAP_P1 , UNIMAP_PENT, UNIMAP_P2 , UNIMAP_P3 ,
159 UNIMAP_Z , UNIMAP_LALT, UNIMAP_RCTL, UNIMAP_C , UNIMAP_K , UNIMAP_NO , UNIMAP_N , UNIMAP_B },
160 { UNIMAP_QUOT, UNIMAP_SLSH, UNIMAP_COMM, UNIMAP_NO , UNIMAP_P4 , UNIMAP_PPLS, UNIMAP_P5 , UNIMAP_P6 ,
161 UNIMAP_D , UNIMAP_A , UNIMAP_LSFT, UNIMAP_F , UNIMAP_J , UNIMAP_F1 , UNIMAP_H , UNIMAP_G },
162 { UNIMAP_RSFT, UNIMAP_SCLN, UNIMAP_L , UNIMAP_RBRC, UNIMAP_UP , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO ,
163 UNIMAP_S , UNIMAP_Q , UNIMAP_CAPS, UNIMAP_R , UNIMAP_I , UNIMAP_F3 , UNIMAP_U , UNIMAP_T },
164 { UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO ,
165 UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO },
166 { UNIMAP_EQL , UNIMAP_MINS, UNIMAP_0 , UNIMAP_BSLS, UNIMAP_NLCK, UNIMAP_BSPC, UNIMAP_PSLS, UNIMAP_PAST,
167 UNIMAP_3 , UNIMAP_2 , UNIMAP_NO , UNIMAP_4 , UNIMAP_9 , UNIMAP_F2 , UNIMAP_7 , UNIMAP_6 },
168 { UNIMAP_LBRC, UNIMAP_P , UNIMAP_O , UNIMAP_ENT , UNIMAP_P7 , UNIMAP_PMNS, UNIMAP_P8 , UNIMAP_P9 ,
169 UNIMAP_W , UNIMAP_1 , UNIMAP_TAB , UNIMAP_E , UNIMAP_8 , UNIMAP_F4 , UNIMAP_Y , UNIMAP_5 },
170 { UNIMAP_F11 , UNIMAP_F10 , UNIMAP_F9 , UNIMAP_F12 , UNIMAP_DEL , UNIMAP_PGDN, UNIMAP_INS , UNIMAP_PGUP,
171 UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_NO , UNIMAP_F8 , UNIMAP_F5 , UNIMAP_F7 , UNIMAP_F6 }
172
173};
174#endif
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