]>
git.gir.st - tmk_keyboard.git/blob - keyboard/fc980c/fc980c.c
2 Copyright 2017 Jun Wako <wakojun@gmail.com>
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.
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.
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/>.
23 #include <util/delay.h>
33 static uint32_t matrix_last_modified
= 0;
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
];
42 void matrix_init(void)
46 debug_keyboard
= true;
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);
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;
62 matrix_prev
= _matrix1
;
65 uint8_t matrix_scan(void)
74 for (col
= 0; col
< MATRIX_COLS
; col
++) {
76 for (row
= 0; row
< MATRIX_ROWS
; row
++) {
77 //KEY_SELECT(row, col);
81 // Not sure this is needed. This just emulates HHKB controller's behaviour.
82 if (matrix_prev
[row
] & (1<<col
)) {
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
;
94 // Wait for KEY_STATE outputs its value.
98 matrix
[row
] &= ~(1<<col
);
100 matrix
[row
] |= (1<<col
);
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
];
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.
118 if (matrix
[row
] ^ matrix_prev
[row
]) {
119 matrix_last_modified
= timer_read32();
126 matrix_row_t
matrix_get_row(uint8_t row
)
131 void led_set(uint8_t usb_led
)
133 if (usb_led
& (1<<USB_LED_NUM_LOCK
)) {
138 if (usb_led
& (1<<USB_LED_CAPS_LOCK
)) {
143 if (usb_led
& (1<<USB_LED_SCROLL_LOCK
)) {
152 #include <avr/pgmspace.h>
155 const 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_LCTL
, 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
}