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Hosted: Improvements in the LCD code. (Roman Stolyarov)

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* Kill LCD when turning off the backlight
 * Fix logic errors in lcd_enable() calls
 * Use ioctls instead of sysfs to twiddle lcd enable

Change-Id: I6864ff63d87b747ac48719b0f4ba2de00333a1d3
This commit is contained in:
Solomon Peachy 2020-10-01 08:36:05 -04:00
parent cb9b5d3b50
commit 0a7b23097a
2 changed files with 31 additions and 21 deletions
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8
firmware/target/hosted/backlight-unix.c
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@ -7,6 +7,7 @@
* \/ \/ \/ \/ \/
*
* Copyright (C) 2017 Marcin Bukat
* Copyright (C) 2019 by Roman Stolyarov
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -28,6 +29,7 @@
#include "backlight-target.h"
#include "sysfs.h"
#include "panic.h"
#include "lcd.h"
static const char * const sysfs_bl_brightness =
"/sys/class/backlight/pwm-backlight.0/brightness";
@ -44,12 +46,18 @@ bool backlight_hw_init(void)
void backlight_hw_on(void)
{
#ifdef HAVE_LCD_ENABLE
lcd_enable(true);
#endif
sysfs_set_int(sysfs_bl_power, 0);
}
void backlight_hw_off(void)
{
sysfs_set_int(sysfs_bl_power, 1);
#ifdef HAVE_LCD_ENABLE
lcd_enable(false);
#endif
}
void backlight_hw_brightness(int brightness)