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