Merge commit '4d116a04e94cf0d19317d5b44e4fa9f34a3e5594'
[tmk_keyboard.git] / tmk_core / common / keyboard.c
1 /*
2 Copyright 2011,2012,2013 Jun Wako <wakojun@gmail.com>
3
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.
8
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.
13
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/>.
16 */
17 #include <stdint.h>
18 #include "keyboard.h"
19 #include "matrix.h"
20 #include "keymap.h"
21 #include "host.h"
22 #include "led.h"
23 #include "keycode.h"
24 #include "timer.h"
25 #include "print.h"
26 #include "debug.h"
27 #include "command.h"
28 #include "util.h"
29 #include "sendchar.h"
30 #include "bootmagic.h"
31 #include "eeconfig.h"
32 #include "backlight.h"
33 #ifdef MOUSEKEY_ENABLE
34 # include "mousekey.h"
35 #endif
36 #ifdef PS2_MOUSE_ENABLE
37 # include "ps2_mouse.h"
38 #endif
39 #ifdef SERIAL_MOUSE_ENABLE
40 #include "serial_mouse.h"
41 #endif
42 #ifdef ADB_MOUSE_ENABLE
43 #include "adb.h"
44 #endif
45
46
47 #ifdef MATRIX_HAS_GHOST
48 static bool has_ghost_in_row(uint8_t row)
49 {
50 matrix_row_t matrix_row = matrix_get_row(row);
51 // No ghost exists when less than 2 keys are down on the row
52 if (((matrix_row - 1) & matrix_row) == 0)
53 return false;
54
55 // Ghost occurs when the row shares column line with other row
56 for (uint8_t i=0; i < MATRIX_ROWS; i++) {
57 if (i != row && (matrix_get_row(i) & matrix_row))
58 return true;
59 }
60 return false;
61 }
62 #endif
63
64
65 void keyboard_init(void)
66 {
67 timer_init();
68 matrix_init();
69 #ifdef PS2_MOUSE_ENABLE
70 ps2_mouse_init();
71 #endif
72 #ifdef SERIAL_MOUSE_ENABLE
73 serial_mouse_init();
74 #endif
75 #ifdef ADB_MOUSE_ENABLE
76 adb_mouse_init();
77 #endif
78
79
80 #ifdef BOOTMAGIC_ENABLE
81 bootmagic();
82 #endif
83
84 #ifdef BACKLIGHT_ENABLE
85 backlight_init();
86 #endif
87 }
88
89 /*
90 * Do keyboard routine jobs: scan mantrix, light LEDs, ...
91 * This is repeatedly called as fast as possible.
92 */
93 void keyboard_task(void)
94 {
95 static matrix_row_t matrix_prev[MATRIX_ROWS];
96 #ifdef MATRIX_HAS_GHOST
97 static matrix_row_t matrix_ghost[MATRIX_ROWS];
98 #endif
99 static uint8_t led_status = 0;
100 matrix_row_t matrix_row = 0;
101 matrix_row_t matrix_change = 0;
102
103 matrix_scan();
104 for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
105 matrix_row = matrix_get_row(r);
106 matrix_change = matrix_row ^ matrix_prev[r];
107 if (matrix_change) {
108 #ifdef MATRIX_HAS_GHOST
109 if (has_ghost_in_row(r)) {
110 /* Keep track of whether ghosted status has changed for
111 * debugging. But don't update matrix_prev until un-ghosted, or
112 * the last key would be lost.
113 */
114 if (debug_matrix && matrix_ghost[r] != matrix_row) {
115 matrix_print();
116 }
117 matrix_ghost[r] = matrix_row;
118 continue;
119 }
120 matrix_ghost[r] = matrix_row;
121 #endif
122 if (debug_matrix) matrix_print();
123 for (uint8_t c = 0; c < MATRIX_COLS; c++) {
124 if (matrix_change & ((matrix_row_t)1<<c)) {
125 action_exec((keyevent_t){
126 .key = (keypos_t){ .row = r, .col = c },
127 .pressed = (matrix_row & ((matrix_row_t)1<<c)),
128 .time = (timer_read() | 1) /* time should not be 0 */
129 });
130 // record a processed key
131 matrix_prev[r] ^= ((matrix_row_t)1<<c);
132 // process a key per task call
133 goto MATRIX_LOOP_END;
134 }
135 }
136 }
137 }
138 // call with pseudo tick event when no real key event.
139 action_exec(TICK);
140
141 MATRIX_LOOP_END:
142
143 #ifdef MOUSEKEY_ENABLE
144 // mousekey repeat & acceleration
145 mousekey_task();
146 #endif
147
148 #ifdef PS2_MOUSE_ENABLE
149 ps2_mouse_task();
150 #endif
151
152 #ifdef SERIAL_MOUSE_ENABLE
153 serial_mouse_task();
154 #endif
155
156 #ifdef ADB_MOUSE_ENABLE
157 adb_mouse_task();
158 #endif
159
160 // update LED
161 if (led_status != host_keyboard_leds()) {
162 led_status = host_keyboard_leds();
163 keyboard_set_leds(led_status);
164 }
165 }
166
167 void keyboard_set_leds(uint8_t leds)
168 {
169 if (debug_keyboard) { debug("keyboard_set_led: "); debug_hex8(leds); debug("\n"); }
170 led_set(leds);
171 }
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