summaryrefslogtreecommitdiffstats
path: root/common/host.c
blob: 2c2279aa4e072dec4d52f03931e907d66c888b86 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
/*
Copyright 2011,2012 Jun Wako <wakojun@gmail.com>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <stdint.h>
#include <avr/interrupt.h>
#include "keycode.h"
#include "host.h"
#include "util.h"
#include "debug.h"


#ifdef NKRO_ENABLE
bool keyboard_nkro = false;
#endif

report_keyboard_t *keyboard_report = &(report_keyboard_t){};
report_mouse_t mouse_report = {};


static host_driver_t *driver;
static uint16_t last_system_report = 0;
static uint16_t last_consumer_report = 0;

static inline void add_key_byte(uint8_t code);
static inline void del_key_byte(uint8_t code);
static inline void add_key_bit(uint8_t code);
static inline void del_key_bit(uint8_t code);


void host_set_driver(host_driver_t *d)
{
    driver = d;
}

host_driver_t *host_get_driver(void)
{
    return driver;
}

uint8_t host_keyboard_leds(void)
{
    if (!driver) return 0;
    return (*driver->keyboard_leds)();
}
/* send report */
void host_keyboard_send(report_keyboard_t *report)
{
    if (!driver) return;
    (*driver->send_keyboard)(report);

    if (debug_keyboard) {
        dprint("keys: ");
        for (int i = 0; i < REPORT_KEYS; i++) {
            dprintf("%02X ", keyboard_report->keys[i]);
        }
        dprintf(" mods: %02X\n", keyboard_report->mods);
    }
}

void host_mouse_send(report_mouse_t *report)
{
    if (!driver) return;
    (*driver->send_mouse)(report);
}

void host_system_send(uint16_t report)
{
    if (report == last_system_report) return;
    last_system_report = report;

    if (!driver) return;
    (*driver->send_system)(report);
}

void host_consumer_send(uint16_t report)
{
    if (report == last_consumer_report) return;
    last_consumer_report = report;

    if (!driver) return;
    (*driver->send_consumer)(report);
}



/* keyboard report utils */
void host_add_key(uint8_t key)
{
#ifdef NKRO_ENABLE
    if (keyboard_nkro) {
        add_key_bit(key);
        return;
    }
#endif
    add_key_byte(key);
}

void host_del_key(uint8_t key)
{
#ifdef NKRO_ENABLE
    if (keyboard_nkro) {
        del_key_bit(key);
        return;
    }
#endif
    del_key_byte(key);
}

void host_clear_keys(void)
{
    for (int8_t i = 0; i < REPORT_KEYS; i++) {
        keyboard_report->keys[i] = 0;
    }
}

uint8_t host_get_mods(void)
{
    return keyboard_report->mods;
}

void host_add_mods(uint8_t mods)
{
    keyboard_report->mods |= mods;
}

void host_del_mods(uint8_t mods)
{
    keyboard_report->mods &= ~mods;
}

void host_set_mods(uint8_t mods)
{
    keyboard_report->mods = mods;
}

void host_clear_mods(void)
{
    keyboard_report->mods = 0;
}

uint8_t host_has_anykey(void)
{
    uint8_t cnt = 0;
    for (int i = 0; i < REPORT_KEYS; i++) {
        if (keyboard_report->keys[i])
            cnt++;
    }
    return cnt;
}

uint8_t host_has_anymod(void)
{
    return bitpop(keyboard_report->mods);
}

uint8_t host_get_first_key(void)
{
#ifdef NKRO_ENABLE
    if (keyboard_nkro) {
        uint8_t i = 0;
        for (; i < REPORT_KEYS && !keyboard_report->keys[i]; i++)
            ;
        return i<<3 | biton(keyboard_report->keys[i]);
    }
#endif
    return keyboard_report->keys[0];
}

void host_send_keyboard_report(void)
{
    if (!driver) return;
    host_keyboard_send(keyboard_report);
}

uint8_t host_mouse_in_use(void)
{
    return (mouse_report.buttons | mouse_report.x | mouse_report.y | mouse_report.v | mouse_report.h);
}

uint16_t host_last_sysytem_report(void)
{
    return last_system_report;
}

uint16_t host_last_consumer_report(void)
{
    return last_consumer_report;
}

static inline void add_key_byte(uint8_t code)
{
    int8_t i = 0;
    int8_t empty = -1;
    for (; i < REPORT_KEYS; i++) {
        if (keyboard_report->keys[i] == code) {
            break;
        }
        if (empty == -1 && keyboard_report->keys[i] == 0) {
            empty = i;
        }
    }
    if (i == REPORT_KEYS) {
        if (empty != -1) {
            keyboard_report->keys[empty] = code;
        }
    }
}

static inline void del_key_byte(uint8_t code)
{
    int i = 0;
    for (; i < REPORT_KEYS; i++) {
        if (keyboard_report->keys[i] == code) {
            keyboard_report->keys[i] = 0;
        }
    }
}

static inline void add_key_bit(uint8_t code)
{
    if ((code>>3) < REPORT_KEYS) {
        keyboard_report->keys[code>>3] |= 1<<(code&7);
    } else {
        dprintf("add_key_bit: can't add: %02X\n", code);
    }
}

static inline void del_key_bit(uint8_t code)
{
    if ((code>>3) < REPORT_KEYS) {
        keyboard_report->keys[code>>3] &= ~(1<<(code&7));
    } else {
        dprintf("del_key_bit: can't del: %02X\n", code);
    }
}