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-rw-r--r--quantum/backlight/backlight.h58
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diff --git a/quantum/backlight/backlight.h b/quantum/backlight/backlight.h
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+/*
+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
+
+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_increase(void);
+void backlight_decrease(void);
+void backlight_toggle(void);
+void backlight_enable(void);
+void backlight_disable(void);
+bool is_backlight_enabled(void);
+void backlight_step(void);
+void backlight_set(uint8_t level);
+void backlight_level(uint8_t level);
+uint8_t get_backlight_level(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_enable(void);
+void breathing_disable(void);
+#endif