98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/*
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Copyright 2013 Mathias Andersson <wraul@dbox.se>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "backlight.h"
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#include "eeconfig.h"
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#include "debug.h"
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backlight_config_t backlight_config;
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void backlight_init(void)
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{
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/* check signature */
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if (!eeconfig_is_enabled()) {
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eeconfig_init();
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}
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backlight_config.raw = eeconfig_read_backlight();
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if (backlight_config.level > BACKLIGHT_LEVELS) {
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backlight_config.level = BACKLIGHT_LEVELS;
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}
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backlight_set(backlight_config.enable ? backlight_config.level : 0);
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}
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void backlight_increase(void)
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{
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if(backlight_config.level < BACKLIGHT_LEVELS)
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{
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backlight_config.level++;
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}
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backlight_config.enable = 1;
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eeconfig_update_backlight(backlight_config.raw);
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dprintf("backlight increase: %u\n", backlight_config.level);
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backlight_set(backlight_config.level);
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}
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void backlight_decrease(void)
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{
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if(backlight_config.level > 0)
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{
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backlight_config.level--;
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backlight_config.enable = !!backlight_config.level;
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eeconfig_update_backlight(backlight_config.raw);
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}
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dprintf("backlight decrease: %u\n", backlight_config.level);
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backlight_set(backlight_config.level);
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}
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void backlight_toggle(void)
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{
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backlight_config.enable ^= 1;
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if (backlight_config.raw == 1) // enabled but level = 0
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backlight_config.level = 1;
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eeconfig_update_backlight(backlight_config.raw);
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dprintf("backlight toggle: %u\n", backlight_config.enable);
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backlight_set(backlight_config.enable ? backlight_config.level : 0);
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}
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void backlight_step(void)
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{
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backlight_config.level++;
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if(backlight_config.level > BACKLIGHT_LEVELS)
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{
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backlight_config.level = 0;
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}
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backlight_config.enable = !!backlight_config.level;
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eeconfig_update_backlight(backlight_config.raw);
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dprintf("backlight step: %u\n", backlight_config.level);
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backlight_set(backlight_config.level);
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}
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void backlight_level(uint8_t level)
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{
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if (level > BACKLIGHT_LEVELS)
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level = BACKLIGHT_LEVELS;
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backlight_config.level = level;
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backlight_config.enable = !!backlight_config.level;
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eeconfig_update_backlight(backlight_config.raw);
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backlight_set(backlight_config.level);
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}
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uint8_t get_backlight_level(void)
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{
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return backlight_config.level;
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}
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