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-rw-r--r--tmk_core/common/keyboard.c150
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1/*
2Copyright 2011,2012,2013 Jun Wako <wakojun@gmail.com>
3
4This program is free software: you can redistribute it and/or modify
5it under the terms of the GNU General Public License as published by
6the Free Software Foundation, either version 2 of the License, or
7(at your option) any later version.
8
9This program is distributed in the hope that it will be useful,
10but WITHOUT ANY WARRANTY; without even the implied warranty of
11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12GNU General Public License for more details.
13
14You should have received a copy of the GNU General Public License
15along 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
43
44#ifdef MATRIX_HAS_GHOST
45static bool has_ghost_in_row(uint8_t row)
46{
47 matrix_row_t matrix_row = matrix_get_row(row);
48 // No ghost exists when less than 2 keys are down on the row
49 if (((matrix_row - 1) & matrix_row) == 0)
50 return false;
51
52 // Ghost occurs when the row shares column line with other row
53 for (uint8_t i=0; i < MATRIX_ROWS; i++) {
54 if (i != row && (matrix_get_row(i) & matrix_row))
55 return true;
56 }
57 return false;
58}
59#endif
60
61
62void keyboard_init(void)
63{
64 timer_init();
65 matrix_init();
66#ifdef PS2_MOUSE_ENABLE
67 ps2_mouse_init();
68#endif
69#ifdef SERIAL_MOUSE_ENABLE
70 serial_mouse_init();
71#endif
72
73
74#ifdef BOOTMAGIC_ENABLE
75 bootmagic();
76#endif
77
78#ifdef BACKLIGHT_ENABLE
79 backlight_init();
80#endif
81}
82
83/*
84 * Do keyboard routine jobs: scan mantrix, light LEDs, ...
85 * This is repeatedly called as fast as possible.
86 */
87void keyboard_task(void)
88{
89 static matrix_row_t matrix_prev[MATRIX_ROWS];
90 static uint8_t led_status = 0;
91 matrix_row_t matrix_row = 0;
92 matrix_row_t matrix_change = 0;
93
94 matrix_scan();
95 for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
96 matrix_row = matrix_get_row(r);
97 matrix_change = matrix_row ^ matrix_prev[r];
98 if (matrix_change) {
99 if (debug_matrix) matrix_print();
100#ifdef MATRIX_HAS_GHOST
101 if (has_ghost_in_row(r)) {
102 matrix_prev[r] = matrix_row;
103 continue;
104 }
105#endif
106 for (uint8_t c = 0; c < MATRIX_COLS; c++) {
107 if (matrix_change & ((matrix_row_t)1<<c)) {
108 action_exec((keyevent_t){
109 .key = (keypos_t){ .row = r, .col = c },
110 .pressed = (matrix_row & ((matrix_row_t)1<<c)),
111 .time = (timer_read() | 1) /* time should not be 0 */
112 });
113 // record a processed key
114 matrix_prev[r] ^= ((matrix_row_t)1<<c);
115 // process a key per task call
116 goto MATRIX_LOOP_END;
117 }
118 }
119 }
120 }
121 // call with pseudo tick event when no real key event.
122 action_exec(TICK);
123
124MATRIX_LOOP_END:
125
126#ifdef MOUSEKEY_ENABLE
127 // mousekey repeat & acceleration
128 mousekey_task();
129#endif
130
131#ifdef PS2_MOUSE_ENABLE
132 ps2_mouse_task();
133#endif
134
135#ifdef SERIAL_MOUSE_ENABLE
136 serial_mouse_task();
137#endif
138
139 // update LED
140 if (led_status != host_keyboard_leds()) {
141 led_status = host_keyboard_leds();
142 keyboard_set_leds(led_status);
143 }
144}
145
146void keyboard_set_leds(uint8_t leds)
147{
148 if (debug_keyboard) { debug("keyboard_set_led: "); debug_hex8(leds); debug("\n"); }
149 led_set(leds);
150}