From 1eb8523e9506c752fb726208d8853a82f06e6659 Mon Sep 17 00:00:00 2001 From: Wraul Date: Thu, 30 May 2013 20:24:39 +0200 Subject: Add support for backlight --- common/backlight.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 common/backlight.c (limited to 'common/backlight.c') diff --git a/common/backlight.c b/common/backlight.c new file mode 100644 index 000000000..00dc04a07 --- /dev/null +++ b/common/backlight.c @@ -0,0 +1,77 @@ +/* +Copyright 2013 Mathias Andersson + +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 . +*/ + +#include "backlight.h" +#include "eeconfig.h" +#include "debug.h" + +backlight_config_t backlight_config; + +void backlight_init(void) +{ + /* check signature */ + if (!eeconfig_is_enabled()) { + eeconfig_init(); + } + backlight_config.raw = eeconfig_read_backlight(); + backlight_set(backlight_config.enable ? backlight_config.level : 0); +} + +void backlight_increase(void) +{ + if(backlight_config.level < BACKLIGHT_LEVELS) + { + backlight_config.level++; + backlight_config.enable = 1; + eeconfig_write_backlight(backlight_config.raw); + } + dprintf("backlight increase: %u\n", backlight_config.level); + backlight_set(backlight_config.level); +} + +void backlight_decrease(void) +{ + if(backlight_config.level > 0) + { + backlight_config.level--; + backlight_config.enable = !!backlight_config.level; + eeconfig_write_backlight(backlight_config.raw); + } + dprintf("backlight decrease: %u\n", backlight_config.level); + backlight_set(backlight_config.level); +} + +void backlight_toggle(void) +{ + backlight_config.enable ^= 1; + eeconfig_write_backlight(backlight_config.raw); + dprintf("backlight toggle: %u\n", backlight_config.enable); + backlight_set(backlight_config.enable ? backlight_config.level : 0); +} + +void backlight_step(void) +{ + backlight_config.level++; + if(backlight_config.level > BACKLIGHT_LEVELS) + { + backlight_config.level = 0; + } + backlight_config.enable = !!backlight_config.level; + eeconfig_write_backlight(backlight_config.raw); + dprintf("backlight step: %u\n", backlight_config.level); + backlight_set(backlight_config.level); +} -- cgit v1.2.3