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)
64 // initialize matrix state: all keys off
65 for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
70 uint8_t matrix_scan(void)
75 key = m0110_recv_key();
77 if (key == M0110_NULL) {
79 } else if (key == M0110_ERROR) {
87 print("["); phex(key); print("]\n");
92 bool matrix_is_modified(void)
98 bool matrix_has_ghost(void)
104 bool matrix_is_on(uint8_t row, uint8_t col)
106 return (matrix[row] & (1<<col));
110 uint8_t matrix_get_row(uint8_t row)
115 void matrix_print(void)
117 print("\nr/c 01234567\n");
118 for (uint8_t row = 0; row < matrix_rows(); row++) {
119 phex(row); print(": ");
120 pbin_reverse(matrix_get_row(row));
125 uint8_t matrix_key_count(void)
128 for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
129 count += bitpop(matrix[i]);
135 static void register_key(uint8_t key)
138 matrix[ROW(key)] &= ~(1<<COL(key));
140 matrix[ROW(key)] |= (1<<COL(key));