- /*
- 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/>.
- */
-
- #pragma once
-
- #include <stdint.h>
- #include <stdbool.h>
-
- #ifndef BACKLIGHT_LEVELS
- # define BACKLIGHT_LEVELS 3
- #elif BACKLIGHT_LEVELS > 31
- # error "Maximum value of BACKLIGHT_LEVELS is 31"
- #endif
-
- #ifndef BACKLIGHT_ON_STATE
- # define BACKLIGHT_ON_STATE 1
- #endif
-
- #ifndef BREATHING_PERIOD
- # define BREATHING_PERIOD 6
- #endif
-
- typedef union {
- uint8_t raw;
- struct {
- bool enable : 1;
- bool breathing : 1;
- uint8_t reserved : 1; // Reserved for possible future backlight modes
- uint8_t level : 5;
- };
- } backlight_config_t;
-
- void backlight_init(void);
- void backlight_toggle(void);
- void backlight_enable(void);
- void backlight_disable(void);
- bool is_backlight_enabled(void);
- void backlight_step(void);
- void backlight_increase(void);
- void backlight_decrease(void);
- void backlight_level_noeeprom(uint8_t level);
- void backlight_level(uint8_t level);
- uint8_t get_backlight_level(void);
-
- uint8_t eeconfig_read_backlight(void);
- void eeconfig_update_backlight(uint8_t val);
- void eeconfig_update_backlight_current(void);
- void eeconfig_update_backlight_default(void);
-
- // implementation specific
- void backlight_init_ports(void);
- void backlight_set(uint8_t level);
- void backlight_task(void);
-
- #ifdef BACKLIGHT_BREATHING
-
- void backlight_toggle_breathing(void);
- void backlight_enable_breathing(void);
- void backlight_disable_breathing(void);
- bool is_backlight_breathing(void);
-
- void breathing_period_set(uint8_t value);
- uint8_t get_breathing_period(void);
- void breathing_period_default(void);
- void breathing_period_inc(void);
- void breathing_period_dec(void);
-
- void breathing_toggle(void);
-
- // implementation specific
- void breathing_enable(void);
- void breathing_disable(void);
- bool is_breathing(void);
- void breathing_pulse(void);
- #endif
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