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 #ifdef MATRIX_HAS_LOCKING_CAPS
78 // Send Caps key up event
79 if (matrix_is_on(ROW(CAPS), COL(CAPS))) {
81 register_key(CAPS_BREAK);
84 if (key == M0110_NULL) {
86 } else if (key == M0110_ERROR) {
89 #ifdef MATRIX_HAS_LOCKING_CAPS
90 if (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) {
92 // Ignore LockingCaps key down event
93 if (key == CAPS) return 0;
94 // Convert LockingCaps key up event into down event
95 if (key == CAPS_BREAK) key = CAPS;
98 // Ignore LockingCaps key up event
99 if (key == CAPS_BREAK) return 0;
107 print("["); phex(key); print("]\n");
112 bool matrix_is_modified(void)
118 bool matrix_has_ghost(void)
124 bool matrix_is_on(uint8_t row, uint8_t col)
126 return (matrix[row] & (1<<col));
130 uint8_t matrix_get_row(uint8_t row)
135 void matrix_print(void)
137 print("\nr/c 01234567\n");
138 for (uint8_t row = 0; row < matrix_rows(); row++) {
139 phex(row); print(": ");
140 pbin_reverse(matrix_get_row(row));
145 uint8_t matrix_key_count(void)
148 for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
149 count += bitpop(matrix[i]);
155 static void register_key(uint8_t key)
158 matrix[ROW(key)] &= ~(1<<COL(key));
160 matrix[ROW(key)] |= (1<<COL(key));