summaryrefslogtreecommitdiff
path: root/quantum/backlight/backlight.c
blob: dfb98419e6c919420e1b893fe8f2682d8d479603 (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
250
251
252
253
254
255
/*
Copyright 2013 Mathias Andersson <wraul@dbox.se>

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 "quantum.h"
#include "backlight.h"
#include "eeprom.h"
#include "eeconfig.h"
#include "debug.h"

backlight_config_t backlight_config;

#ifndef BACKLIGHT_DEFAULT_LEVEL
#    define BACKLIGHT_DEFAULT_LEVEL BACKLIGHT_LEVELS
#endif

#ifdef BACKLIGHT_BREATHING
// TODO: migrate to backlight_config_t
static uint8_t breathing_period = BREATHING_PERIOD;
#endif

/** \brief Backlight initialization
 *
 * FIXME: needs doc
 */
void backlight_init(void) {
    /* check signature */
    if (!eeconfig_is_enabled()) {
        eeconfig_init();
        eeconfig_update_backlight_default();
    }
    backlight_config.raw = eeconfig_read_backlight();
    if (backlight_config.level > BACKLIGHT_LEVELS) {
        backlight_config.level = BACKLIGHT_LEVELS;
    }
    backlight_set(backlight_config.enable ? backlight_config.level : 0);
}

/** \brief Backlight increase
 *
 * FIXME: needs doc
 */
void backlight_increase(void) {
    if (backlight_config.level < BACKLIGHT_LEVELS) {
        backlight_config.level++;
    }
    backlight_config.enable = 1;
    eeconfig_update_backlight(backlight_config.raw);
    dprintf("backlight increase: %u\n", backlight_config.level);
    backlight_set(backlight_config.level);
}

/** \brief Backlight decrease
 *
 * FIXME: needs doc
 */
void backlight_decrease(void) {
    if (backlight_config.level > 0) {
        backlight_config.level--;
        backlight_config.enable = !!backlight_config.level;
        eeconfig_update_backlight(backlight_config.raw);
    }
    dprintf("backlight decrease: %u\n", backlight_config.level);
    backlight_set(backlight_config.level);
}

/** \brief Backlight toggle
 *
 * FIXME: needs doc
 */
void backlight_toggle(void) {
    bool enabled = backlight_config.enable;
    dprintf("backlight toggle: %u\n", enabled);
    if (enabled)
        backlight_disable();
    else
        backlight_enable();
}

/** \brief Enable backlight
 *
 * FIXME: needs doc
 */
void backlight_enable(void) {
    if (backlight_config.enable) return;  // do nothing if backlight is already on

    backlight_config.enable = true;
    if (backlight_config.raw == 1)  // enabled but level == 0
        backlight_config.level = 1;
    eeconfig_update_backlight(backlight_config.raw);
    dprintf("backlight enable\n");
    backlight_set(backlight_config.level);
}

/** \brief Disable backlight
 *
 * FIXME: needs doc
 */
void backlight_disable(void) {
    if (!backlight_config.enable) return;  // do nothing if backlight is already off

    backlight_config.enable = false;
    eeconfig_update_backlight(backlight_config.raw);
    dprintf("backlight disable\n");
    backlight_set(0);
}

/** /brief Get the backlight status
 *
 * FIXME: needs doc
 */
bool is_backlight_enabled(void) { return backlight_config.enable; }

/** \brief Backlight step through levels
 *
 * FIXME: needs doc
 */
void backlight_step(void) {
    backlight_config.level++;
    if (backlight_config.level > BACKLIGHT_LEVELS) {
        backlight_config.level = 0;
    }
    backlight_config.enable = !!backlight_config.level;
    eeconfig_update_backlight(backlight_config.raw);
    dprintf("backlight step: %u\n", backlight_config.level);
    backlight_set(backlight_config.level);
}

/** \brief Backlight set level without EEPROM update
 *
 */
void backlight_level_noeeprom(uint8_t level) {
    if (level > BACKLIGHT_LEVELS) level = BACKLIGHT_LEVELS;
    backlight_config.level  = level;
    backlight_config.enable = !!backlight_config.level;
    backlight_set(backlight_config.level);
}

/** \brief Backlight set level
 *
 * FIXME: needs doc
 */
void backlight_level(uint8_t level) {
    backlight_level_noeeprom(level);
    eeconfig_update_backlight(backlight_config.raw);
}

uint8_t eeconfig_read_backlight(void) { return eeprom_read_byte(EECONFIG_BACKLIGHT); }

void eeconfig_update_backlight(uint8_t val) { eeprom_update_byte(EECONFIG_BACKLIGHT, val); }

void eeconfig_update_backlight_current(void) { eeconfig_update_backlight(backlight_config.raw); }

void eeconfig_update_backlight_default(void) {
    backlight_config.enable = 1;
#ifdef BACKLIGHT_DEFAULT_BREATHING
    backlight_config.breathing = 1;
#else
    backlight_config.breathing = 0;
#endif
    backlight_config.level = BACKLIGHT_DEFAULT_LEVEL;
    eeconfig_update_backlight(backlight_config.raw);
}

/** \brief Get backlight level
 *
 * FIXME: needs doc
 */
uint8_t get_backlight_level(void) { return backlight_config.level; }

#ifdef BACKLIGHT_BREATHING
/** \brief Backlight breathing toggle
 *
 * FIXME: needs doc
 */
void backlight_toggle_breathing(void) {
    bool breathing = backlight_config.breathing;
    dprintf("backlight breathing toggle: %u\n", breathing);
    if (breathing)
        backlight_disable_breathing();
    else
        backlight_enable_breathing();
}

/** \brief Enable backlight breathing
 *
 * FIXME: needs doc
 */
void backlight_enable_breathing(void) {
    if (backlight_config.breathing) return;  // do nothing if breathing is already on

    backlight_config.breathing = true;
    eeconfig_update_backlight(backlight_config.raw);
    dprintf("backlight breathing enable\n");
    breathing_enable();
}

/** \brief Disable backlight breathing
 *
 * FIXME: needs doc
 */
void backlight_disable_breathing(void) {
    if (!backlight_config.breathing) return;  // do nothing if breathing is already off

    backlight_config.breathing = false;
    eeconfig_update_backlight(backlight_config.raw);
    dprintf("backlight breathing disable\n");
    breathing_disable();
}

/** \brief Get the backlight breathing status
 *
 * FIXME: needs doc
 */
bool is_backlight_breathing(void) { return backlight_config.breathing; }

// following are marked as weak purely for backwards compatibility
__attribute__((weak)) void breathing_period_set(uint8_t value) { breathing_period = value ? value : 1; }

__attribute__((weak)) uint8_t get_breathing_period(void) { return breathing_period; }

__attribute__((weak)) void breathing_period_default(void) { breathing_period_set(BREATHING_PERIOD); }

__attribute__((weak)) void breathing_period_inc(void) { breathing_period_set(breathing_period + 1); }

__attribute__((weak)) void breathing_period_dec(void) { breathing_period_set(breathing_period - 1); }

__attribute__((weak)) void breathing_toggle(void) {
    if (is_breathing())
        breathing_disable();
    else
        breathing_enable();
}

#endif

// defaults for backlight api
__attribute__((weak)) void backlight_init_ports(void) {}

__attribute__((weak)) void backlight_set(uint8_t level) {}

__attribute__((weak)) void backlight_task(void) {}