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48392bab94
A bit of context, this device is a clone of the FunKey-S with a different form factor, hardware is mostly identical, the relevant difference is it has audio out (via usb-c, adapter to 3.5mm is included), this is the reason why the FunKey-SDK is needed for bulding. This port is based on the old SDL 1.2 code because the device doesn't have SDL2 support. Alongside what was supported in the SDL 1.2 builds this port supports battery level, charging status and backlight control. Change-Id: I7fcb85be62748644b667c0efebabf59d6e9c5ade
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/***************************************************************************
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* __________ __ ___
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* Copyright (C) 2017 Marcin Bukat
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* Copyright (C) 2019 by Roman Stolyarov
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include "config.h"
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#include "backlight-target.h"
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#include "sysfs.h"
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#include "panic.h"
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#include "lcd.h"
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#ifdef BACKLIGHT_RG_NANO
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static const char * const sysfs_bl_brightness =
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"/sys/class/backlight/backlight/brightness";
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static const char * const sysfs_bl_power =
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"/sys/class/backlight/backlight/bl_power";
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#else
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static const char * const sysfs_bl_brightness =
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"/sys/class/backlight/pwm-backlight.0/brightness";
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static const char * const sysfs_bl_power =
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"/sys/class/backlight/pwm-backlight.0/bl_power";
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#endif
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bool backlight_hw_init(void)
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{
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backlight_hw_on();
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backlight_hw_brightness(DEFAULT_BRIGHTNESS_SETTING);
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#ifdef HAVE_BUTTON_LIGHT
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buttonlight_hw_on();
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#ifdef HAVE_BUTTONLIGHT_BRIGHTNESS
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buttonlight_hw_brightness(DEFAULT_BRIGHTNESS_SETTING);
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#endif
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#endif
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return true;
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}
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static int last_bl = -1;
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void backlight_hw_on(void)
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{
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if (last_bl != 1) {
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#ifdef HAVE_LCD_ENABLE
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lcd_enable(true);
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#endif
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sysfs_set_int(sysfs_bl_power, 0);
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last_bl = 1;
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}
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}
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void backlight_hw_off(void)
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{
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if (last_bl != 0) {
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sysfs_set_int(sysfs_bl_power, 1);
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#ifdef HAVE_LCD_ENABLE
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lcd_enable(false);
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#endif
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last_bl = 0;
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}
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}
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void backlight_hw_brightness(int brightness)
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{
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/* cap range, just in case */
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if (brightness > MAX_BRIGHTNESS_SETTING)
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brightness = MAX_BRIGHTNESS_SETTING;
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if (brightness < MIN_BRIGHTNESS_SETTING)
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brightness = MIN_BRIGHTNESS_SETTING;
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sysfs_set_int(sysfs_bl_brightness, brightness);
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}
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