]>
git.gir.st - tmk_keyboard.git/blob - converter/xt_usb/matrix.c
2 Copyright 2011 Jun Wako <wakojun@gmail.com>
3 Copyright 2016 Ethan Apodaca <papodaca@gmail.com>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 static void matrix_make(uint8_t code
);
30 static void matrix_break(uint8_t code
);
31 static void matrix_clear(void);
32 #ifdef MATRIX_HAS_GHOST
33 static bool matrix_has_ghost_in_row(uint8_t row
);
36 static uint8_t matrix
[MATRIX_ROWS
];
37 #define ROW(code) (code>>3)
38 #define COL(code) (code&0x07)
40 // matrix positions for exceptional keys
41 #define PRINT_SCREEN (0x7C)
44 static bool is_modified
= false;
48 uint8_t matrix_rows(void)
54 uint8_t matrix_cols(void)
59 void matrix_init(void)
64 // initialize matrix state: all keys off
65 for (uint8_t i
=0; i
< MATRIX_ROWS
; i
++) matrix
[i
] = 0x00;
70 static uint8_t move_codes(uint8_t code
) {
113 uint8_t matrix_scan(void)
116 // scan code reading states
137 // 'pseudo break code' hack
138 if (matrix_is_on(ROW(PAUSE
), COL(PAUSE
))) {
142 uint8_t code
= xt_host_recv();
152 default: // normal key make
153 if (code
< 0x80 && code
!= 0x00) {
154 xprintf("make: %X\r\n", code
);
156 } else if (code
> 0x80 && code
< 0xFF && code
!= 0x00) {
157 xprintf("break %X\r\n", code
);
158 matrix_break(code
- 0x80);
163 case E0
: // E0-Prefixed
164 switch (code
) { //move these codes to unused places on the matrix
172 if (code
< 0x80 && code
!= 0x00) {
173 matrix_make(move_codes(code
));
174 } else if (code
> 0x80 && code
< 0xFF && code
!= 0x00) {
175 matrix_break(move_codes(code
- 0x80));
188 matrix_make(PRINT_SCREEN
);
200 matrix_break(PRINT_SCREEN
);
224 state
= E1_1D_45_E1_9D
;
240 bool matrix_is_modified(void)
246 bool matrix_has_ghost(void)
248 #ifdef MATRIX_HAS_GHOST
249 for (uint8_t i
= 0; i
< MATRIX_ROWS
; i
++) {
250 if (matrix_has_ghost_in_row(i
))
258 bool matrix_is_on(uint8_t row
, uint8_t col
)
260 return (matrix
[row
] & (1<<col
));
264 uint8_t matrix_get_row(uint8_t row
)
269 void matrix_print(void)
271 print("\nr/c 01234567\n");
272 for (uint8_t row
= 0; row
< matrix_rows(); row
++) {
273 phex(row
); print(": ");
274 pbin_reverse(matrix_get_row(row
));
275 #ifdef MATRIX_HAS_GHOST
276 if (matrix_has_ghost_in_row(row
)) {
284 uint8_t matrix_key_count(void)
287 for (uint8_t i
= 0; i
< MATRIX_ROWS
; i
++) {
288 count
+= bitpop(matrix
[i
]);
293 #ifdef MATRIX_HAS_GHOST
295 static bool matrix_has_ghost_in_row(uint8_t row
)
297 // no ghost exists in case less than 2 keys on
298 if (((matrix
[row
] - 1) & matrix
[row
]) == 0)
301 // ghost exists in case same state as other row
302 for (uint8_t i
=0; i
< MATRIX_ROWS
; i
++) {
303 if (i
!= row
&& (matrix
[i
] & matrix
[row
]) == matrix
[row
])
312 static void matrix_make(uint8_t code
)
314 if (!matrix_is_on(ROW(code
), COL(code
))) {
315 matrix
[ROW(code
)] |= 1<<COL(code
);
321 static void matrix_break(uint8_t code
)
323 if (matrix_is_on(ROW(code
), COL(code
))) {
324 matrix
[ROW(code
)] &= ~(1<<COL(code
));
330 static void matrix_clear(void)
332 for (uint8_t i
=0; i
< MATRIX_ROWS
; i
++) matrix
[i
] = 0x00;