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git.gir.st - tmk_keyboard.git/blob - m0110_usb/matrix.c
1ca6894c440b4fd71e1d994c1bd13bec76db476e
2 Copyright 2011,2012 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/>.
24 #include <util/delay.h>
35 #define CAPS_BREAK (CAPS | 0x80)
36 #define ROW(key) ((key)>>3&0x0F)
37 #define COL(key) ((key)&0x07)
40 static bool is_modified
= false;
42 // matrix state buffer(1:on, 0:off)
43 static uint8_t *matrix
;
44 static uint8_t _matrix0
[MATRIX_ROWS
];
46 static void register_key(uint8_t key
);
50 uint8_t matrix_rows(void)
56 uint8_t matrix_cols(void)
61 void matrix_init(void)
66 debug_keyboard
= false;
68 print("debug enabled.\n");
71 // initialize matrix state: all keys off
72 for (uint8_t i
=0; i
< MATRIX_ROWS
; i
++) _matrix0
[i
] = 0x00;
77 uint8_t matrix_scan(void)
82 key
= m0110_recv_key();
84 #ifdef MATRIX_HAS_LOCKING_CAPS
85 // Send Caps key up event
86 if (matrix_is_on(ROW(CAPS
), COL(CAPS
))) {
88 register_key(CAPS_BREAK
);
91 if (key
== M0110_NULL
) {
93 } else if (key
== M0110_ERROR
) {
96 #ifdef MATRIX_HAS_LOCKING_CAPS
97 if (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK
)) {
99 // Ignore LockingCaps key down event
100 if (key
== CAPS
) return 0;
101 // Convert LockingCaps key up event into down event
102 if (key
== CAPS_BREAK
) key
= CAPS
;
105 // Ignore LockingCaps key up event
106 if (key
== CAPS_BREAK
) return 0;
114 print("["); phex(key
); print("]\n");
119 bool matrix_is_modified(void)
125 bool matrix_has_ghost(void)
131 bool matrix_is_on(uint8_t row
, uint8_t col
)
133 return (matrix
[row
] & (1<<col
));
137 uint8_t matrix_get_row(uint8_t row
)
142 void matrix_print(void)
144 print("\nr/c 01234567\n");
145 for (uint8_t row
= 0; row
< matrix_rows(); row
++) {
146 phex(row
); print(": ");
147 pbin_reverse(matrix_get_row(row
));
152 uint8_t matrix_key_count(void)
155 for (uint8_t i
= 0; i
< MATRIX_ROWS
; i
++) {
156 count
+= bitpop(matrix
[i
]);
162 static void register_key(uint8_t key
)
165 matrix
[ROW(key
)] &= ~(1<<COL(key
));
167 matrix
[ROW(key
)] |= (1<<COL(key
));