fc660c: Add unimap
[tmk_keyboard.git] / keyboard / fc660c / fc660c.c
1 /*
2 Copyright 2017 Jun Wako <wakojun@gmail.com>
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along 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 "fc660c.h"
31
32
33 static uint32_t matrix_last_modified = 0;
34
35 // matrix state buffer(1:on, 0:off)
36 static matrix_row_t *matrix;
37 static matrix_row_t *matrix_prev;
38 static matrix_row_t _matrix0[MATRIX_ROWS];
39 static matrix_row_t _matrix1[MATRIX_ROWS];
40
41
42 void matrix_init(void)
43 {
44 #if 0
45 debug_enable = true;
46 debug_keyboard = true;
47 debug_matrix = true;
48 #endif
49
50 KEY_INIT();
51
52 // LEDs on CapsLock and Insert
53 DDRB |= (1<<5) | (1<<6);
54 PORTB |= (1<<5) | (1<<6);
55
56 // initialize matrix state: all keys off
57 for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
58 for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0x00;
59 matrix = _matrix0;
60 matrix_prev = _matrix1;
61 }
62
63 uint8_t matrix_scan(void)
64 {
65 matrix_row_t *tmp;
66
67 tmp = matrix_prev;
68 matrix_prev = matrix;
69 matrix = tmp;
70
71 uint8_t row, col;
72 for (col = 0; col < MATRIX_COLS; col++) {
73 SET_COL(col);
74 for (row = 0; row < MATRIX_ROWS; row++) {
75 //KEY_SELECT(row, col);
76 SET_ROW(row);
77 _delay_us(2);
78
79 // Not sure this is needed. This just emulates HHKB controller's behaviour.
80 if (matrix_prev[row] & (1<<col)) {
81 KEY_HYS_ON();
82 }
83 _delay_us(10);
84
85 // NOTE: KEY_STATE is valid only in 20us after KEY_ENABLE.
86 // If V-USB interrupts in this section we could lose 40us or so
87 // and would read invalid value from KEY_STATE.
88 uint8_t last = TIMER_RAW;
89
90 KEY_ENABLE();
91
92 // Wait for KEY_STATE outputs its value.
93 _delay_us(2);
94
95 if (KEY_STATE()) {
96 matrix[row] &= ~(1<<col);
97 } else {
98 matrix[row] |= (1<<col);
99 }
100
101 // Ignore if this code region execution time elapses more than 20us.
102 // MEMO: 20[us] * (TIMER_RAW_FREQ / 1000000)[count per us]
103 // MEMO: then change above using this rule: a/(b/c) = a*1/(b/c) = a*(c/b)
104 if (TIMER_DIFF_RAW(TIMER_RAW, last) > 20/(1000000/TIMER_RAW_FREQ)) {
105 matrix[row] = matrix_prev[row];
106 }
107
108 _delay_us(5);
109 KEY_HYS_OFF();
110 KEY_UNABLE();
111
112 // NOTE: KEY_STATE keep its state in 20us after KEY_ENABLE.
113 // This takes 25us or more to make sure KEY_STATE returns to idle state.
114 _delay_us(75);
115 }
116 if (matrix[row] ^ matrix_prev[row]) {
117 matrix_last_modified = timer_read32();
118 }
119 }
120 return 1;
121 }
122
123 inline
124 matrix_row_t matrix_get_row(uint8_t row)
125 {
126 return matrix[row];
127 }
128
129 void led_set(uint8_t usb_led)
130 {
131 if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
132 PORTB &= ~(1<<6);
133 } else {
134 PORTB |= (1<<6);
135 }
136 }
137
138
139 #ifdef UNIMAP_ENABLE
140 #include <avr/pgmspace.h>
141 #include "unimap.h"
142
143 const uint8_t PROGMEM unimap_trans[MATRIX_ROWS][MATRIX_COLS] = {
144 { UNIMAP_Q, UNIMAP_W, UNIMAP_E, UNIMAP_TAB, UNIMAP_R, UNIMAP_U, UNIMAP_T, UNIMAP_Y,
145 UNIMAP_O, UNIMAP_P, UNIMAP_LBRC, UNIMAP_I, UNIMAP_RBRC, UNIMAP_NO, UNIMAP_BSLS, UNIMAP_DEL },
146 { UNIMAP_1, UNIMAP_2, UNIMAP_3, UNIMAP_GRV, UNIMAP_4, UNIMAP_7, UNIMAP_5, UNIMAP_6,
147 UNIMAP_9, UNIMAP_0, UNIMAP_MINS, UNIMAP_8, UNIMAP_EQL, UNIMAP_NO, UNIMAP_BSPC, UNIMAP_INS },
148 { UNIMAP_NO, UNIMAP_LGUI, UNIMAP_LALT, UNIMAP_LCTL, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_SPC,
149 UNIMAP_RALT, UNIMAP_NO, UNIMAP_RCTL, UNIMAP_NO, UNIMAP_RGUI, UNIMAP_DOWN, UNIMAP_LEFT, UNIMAP_RGHT },
150 { UNIMAP_NO, UNIMAP_Z, UNIMAP_X, UNIMAP_LSFT, UNIMAP_C, UNIMAP_N, UNIMAP_V, UNIMAP_B,
151 UNIMAP_COMM, UNIMAP_DOT, UNIMAP_SLSH, UNIMAP_M, UNIMAP_RSFT, UNIMAP_UP, UNIMAP_NO, UNIMAP_NO },
152 { UNIMAP_A, UNIMAP_S, UNIMAP_D, UNIMAP_CAPS, UNIMAP_F, UNIMAP_J, UNIMAP_G, UNIMAP_H,
153 UNIMAP_L, UNIMAP_SCLN, UNIMAP_QUOT, UNIMAP_K, UNIMAP_NO, UNIMAP_NO, UNIMAP_ENT, UNIMAP_NO },
154 { UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO,
155 UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO },
156 { UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO,
157 UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO },
158 { UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO,
159 UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO, UNIMAP_NO }
160 };
161 #endif
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