283 lines
7.3 KiB
C
283 lines
7.3 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 "eeprom.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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#ifndef BACKLIGHT_DEFAULT_ON
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# define BACKLIGHT_DEFAULT_ON true
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#endif
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#ifndef BACKLIGHT_DEFAULT_LEVEL
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# define BACKLIGHT_DEFAULT_LEVEL BACKLIGHT_LEVELS
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#endif
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#ifndef BACKLIGHT_DEFAULT_BREATHING
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# define BACKLIGHT_DEFAULT_BREATHING false
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#else
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# undef BACKLIGHT_DEFAULT_BREATHING
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# define BACKLIGHT_DEFAULT_BREATHING true
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#endif
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#ifdef BACKLIGHT_BREATHING
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// TODO: migrate to backlight_config_t
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static uint8_t breathing_period = BREATHING_PERIOD;
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#endif
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/** \brief Backlight initialization
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*
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* FIXME: needs doc
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*/
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void backlight_init(void) {
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/* check signature */
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if (!eeconfig_is_enabled()) {
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eeconfig_init();
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eeconfig_update_backlight_default();
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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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/** \brief Backlight increase
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*
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* FIXME: needs doc
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*/
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void backlight_increase(void) {
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if (backlight_config.level < BACKLIGHT_LEVELS) {
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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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/** \brief Backlight decrease
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*
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* FIXME: needs doc
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*/
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void backlight_decrease(void) {
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if (backlight_config.level > 0) {
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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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/** \brief Backlight toggle
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*
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* FIXME: needs doc
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*/
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void backlight_toggle(void) {
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bool enabled = backlight_config.enable;
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dprintf("backlight toggle: %u\n", enabled);
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if (enabled)
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backlight_disable();
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else
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backlight_enable();
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}
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/** \brief Enable backlight
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*
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* FIXME: needs doc
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*/
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void backlight_enable(void) {
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if (backlight_config.enable) return; // do nothing if backlight is already on
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backlight_config.enable = true;
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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 enable\n");
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backlight_set(backlight_config.level);
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}
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/** \brief Disable backlight
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*
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* FIXME: needs doc
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*/
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void backlight_disable(void) {
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if (!backlight_config.enable) return; // do nothing if backlight is already off
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backlight_config.enable = false;
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eeconfig_update_backlight(backlight_config.raw);
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dprintf("backlight disable\n");
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backlight_set(0);
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}
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/** /brief Get the backlight status
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*
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* FIXME: needs doc
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*/
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bool is_backlight_enabled(void) {
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return backlight_config.enable;
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}
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/** \brief Backlight step through levels
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*
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* FIXME: needs doc
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*/
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void backlight_step(void) {
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backlight_config.level++;
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if (backlight_config.level > BACKLIGHT_LEVELS) {
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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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/** \brief Backlight set level without EEPROM update
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*
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*/
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void backlight_level_noeeprom(uint8_t level) {
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if (level > BACKLIGHT_LEVELS) 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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backlight_set(backlight_config.level);
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}
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/** \brief Backlight set level
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*
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* FIXME: needs doc
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*/
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void backlight_level(uint8_t level) {
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backlight_level_noeeprom(level);
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eeconfig_update_backlight(backlight_config.raw);
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}
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uint8_t eeconfig_read_backlight(void) {
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return eeprom_read_byte(EECONFIG_BACKLIGHT);
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}
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void eeconfig_update_backlight(uint8_t val) {
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eeprom_update_byte(EECONFIG_BACKLIGHT, val);
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}
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void eeconfig_update_backlight_current(void) {
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eeconfig_update_backlight(backlight_config.raw);
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}
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void eeconfig_update_backlight_default(void) {
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backlight_config.enable = BACKLIGHT_DEFAULT_ON;
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backlight_config.breathing = BACKLIGHT_DEFAULT_BREATHING;
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backlight_config.level = BACKLIGHT_DEFAULT_LEVEL;
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eeconfig_update_backlight(backlight_config.raw);
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}
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/** \brief Get backlight level
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*
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* FIXME: needs doc
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*/
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uint8_t get_backlight_level(void) {
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return backlight_config.level;
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}
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#ifdef BACKLIGHT_BREATHING
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/** \brief Backlight breathing toggle
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*
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* FIXME: needs doc
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*/
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void backlight_toggle_breathing(void) {
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bool breathing = backlight_config.breathing;
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dprintf("backlight breathing toggle: %u\n", breathing);
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if (breathing)
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backlight_disable_breathing();
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else
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backlight_enable_breathing();
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}
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/** \brief Enable backlight breathing
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*
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* FIXME: needs doc
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*/
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void backlight_enable_breathing(void) {
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if (backlight_config.breathing) return; // do nothing if breathing is already on
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backlight_config.breathing = true;
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eeconfig_update_backlight(backlight_config.raw);
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dprintf("backlight breathing enable\n");
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breathing_enable();
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}
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/** \brief Disable backlight breathing
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*
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* FIXME: needs doc
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*/
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void backlight_disable_breathing(void) {
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if (!backlight_config.breathing) return; // do nothing if breathing is already off
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backlight_config.breathing = false;
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eeconfig_update_backlight(backlight_config.raw);
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dprintf("backlight breathing disable\n");
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breathing_disable();
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}
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/** \brief Get the backlight breathing status
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*
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* FIXME: needs doc
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*/
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bool is_backlight_breathing(void) {
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return backlight_config.breathing;
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}
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// following are marked as weak purely for backwards compatibility
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__attribute__((weak)) void breathing_period_set(uint8_t value) {
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breathing_period = value ? value : 1;
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}
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__attribute__((weak)) uint8_t get_breathing_period(void) {
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return breathing_period;
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}
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__attribute__((weak)) void breathing_period_default(void) {
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breathing_period_set(BREATHING_PERIOD);
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}
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__attribute__((weak)) void breathing_period_inc(void) {
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breathing_period_set(breathing_period + 1);
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}
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__attribute__((weak)) void breathing_period_dec(void) {
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breathing_period_set(breathing_period - 1);
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}
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__attribute__((weak)) void breathing_toggle(void) {
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if (is_breathing())
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breathing_disable();
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else
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breathing_enable();
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}
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#endif
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// defaults for backlight api
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__attribute__((weak)) void backlight_init_ports(void) {}
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__attribute__((weak)) void backlight_set(uint8_t level) {}
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__attribute__((weak)) void backlight_task(void) {}
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