f13184e472
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18522 a1c6a512-1295-4272-9138-f99709370657
887 lines
22 KiB
C
887 lines
22 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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* $Id$
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*
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* Copyright (C) 2002 by Linus Nielsen Feltzing
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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 "config.h"
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#include <stdlib.h>
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#include "cpu.h"
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#include "kernel.h"
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#include "thread.h"
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#include "i2c.h"
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#include "debug.h"
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#include "rtc.h"
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#include "usb.h"
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#include "power.h"
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#include "system.h"
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#include "button.h"
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#include "timer.h"
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#include "backlight.h"
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#include "lcd.h"
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#ifdef HAVE_REMOTE_LCD
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#include "lcd-remote.h"
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#endif
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#ifndef SIMULATOR
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#include "backlight-target.h"
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#endif
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#if !defined(BOOTLOADER)
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/* The whole driver should be built */
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#define BACKLIGHT_FULL_INIT
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#endif
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#ifdef SIMULATOR
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/* TODO: find a better way to do it but we need a kernel thread somewhere to
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handle this */
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extern void screen_dump(void);
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static inline void _backlight_on(void)
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{
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sim_backlight(100);
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}
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static inline void _backlight_off(void)
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{
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sim_backlight(0);
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}
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static inline void _backlight_set_brightness(int val)
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{
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(void)val;
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}
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static inline void _buttonlight_on(void)
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{
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}
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static inline void _buttonlight_off(void)
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{
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}
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static inline void _buttonlight_set_brightness(int val)
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{
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(void)val;
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}
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#ifdef HAVE_REMOTE_LCD
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static inline void _remote_backlight_on(void)
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{
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sim_remote_backlight(100);
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}
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static inline void _remote_backlight_off(void)
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{
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sim_remote_backlight(0);
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}
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#endif /* HAVE_REMOTE_LCD */
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#endif /* SIMULATOR */
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#if defined(HAVE_BACKLIGHT) && defined(BACKLIGHT_FULL_INIT)
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enum {
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BACKLIGHT_ON,
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BACKLIGHT_OFF,
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#ifdef HAVE_REMOTE_LCD
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REMOTE_BACKLIGHT_ON,
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REMOTE_BACKLIGHT_OFF,
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#endif
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#if defined(_BACKLIGHT_FADE_BOOST) || defined(_BACKLIGHT_FADE_ENABLE)
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BACKLIGHT_FADE_FINISH,
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#endif
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#ifdef HAVE_LCD_SLEEP
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LCD_SLEEP,
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#endif
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#ifdef HAVE_BUTTON_LIGHT
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BUTTON_LIGHT_ON,
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BUTTON_LIGHT_OFF,
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#endif
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#ifdef BACKLIGHT_DRIVER_CLOSE
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BACKLIGHT_QUIT,
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#endif
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};
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static void backlight_thread(void);
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static long backlight_stack[DEFAULT_STACK_SIZE/sizeof(long)];
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static const char backlight_thread_name[] = "backlight";
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static struct event_queue backlight_queue;
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#ifdef BACKLIGHT_DRIVER_CLOSE
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static struct thread_entry *backlight_thread_p = NULL;
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#endif
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static int backlight_timer SHAREDBSS_ATTR;
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static int backlight_timeout SHAREDBSS_ATTR;
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static int backlight_timeout_normal = 5*HZ;
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#if CONFIG_CHARGING
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static int backlight_timeout_plugged = 5*HZ;
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#endif
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#ifdef HAS_BUTTON_HOLD
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static int backlight_on_button_hold = 0;
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#endif
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#ifdef HAVE_BUTTON_LIGHT
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static int buttonlight_timer;
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int _buttonlight_timeout = 5*HZ;
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/* Update state of buttonlight according to timeout setting */
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static void buttonlight_update_state(void)
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{
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buttonlight_timer = _buttonlight_timeout;
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/* Buttonlight == OFF in the setting? */
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if (buttonlight_timer < 0)
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{
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buttonlight_timer = 0; /* Disable the timeout */
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_buttonlight_off();
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}
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else
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_buttonlight_on();
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}
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/* external interface */
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void buttonlight_on(void)
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{
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queue_remove_from_head(&backlight_queue, BUTTON_LIGHT_ON);
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queue_post(&backlight_queue, BUTTON_LIGHT_ON, 0);
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}
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void buttonlight_off(void)
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{
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queue_post(&backlight_queue, BUTTON_LIGHT_OFF, 0);
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}
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void buttonlight_set_timeout(int value)
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{
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_buttonlight_timeout = HZ * value;
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buttonlight_update_state();
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}
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#endif /* HAVE_BUTTON_LIGHT */
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#ifdef HAVE_REMOTE_LCD
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static int remote_backlight_timer;
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static int remote_backlight_timeout;
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static int remote_backlight_timeout_normal = 5*HZ;
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#if CONFIG_CHARGING
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static int remote_backlight_timeout_plugged = 5*HZ;
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#endif
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#ifdef HAS_REMOTE_BUTTON_HOLD
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static int remote_backlight_on_button_hold = 0;
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#endif
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#endif /* HAVE_REMOTE_LCD */
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#ifdef HAVE_LCD_SLEEP
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#ifdef HAVE_LCD_SLEEP_SETTING
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const signed char lcd_sleep_timeout_value[10] =
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{
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-1, 0, 5, 10, 15, 20, 30, 45, 60, 90
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};
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static int lcd_sleep_timeout = 10*HZ;
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#else
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/* Target defines needed value */
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static const int lcd_sleep_timeout = LCD_SLEEP_TIMEOUT;
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#endif
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static int lcd_sleep_timer = 0;
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void backlight_lcd_sleep_countdown(bool start)
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{
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if (!start)
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{
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/* Cancel the LCD sleep countdown */
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lcd_sleep_timer = 0;
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return;
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}
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/* Start LCD sleep countdown */
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if (lcd_sleep_timeout < 0)
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{
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lcd_sleep_timer = 0; /* Setting == Always */
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lcd_sleep();
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}
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else
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{
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lcd_sleep_timer = lcd_sleep_timeout;
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}
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}
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#endif /* HAVE_LCD_SLEEP */
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#if defined(HAVE_BACKLIGHT_PWM_FADING) && !defined(SIMULATOR)
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/* backlight fading */
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#define BL_PWM_INTERVAL 5 /* Cycle interval in ms */
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#define BL_PWM_BITS 8
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#define BL_PWM_COUNT (1<<BL_PWM_BITS)
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/* s15.16 fixed point variables */
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static int32_t bl_fade_in_step = ((BL_PWM_INTERVAL*BL_PWM_COUNT)<<16)/300;
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static int32_t bl_fade_out_step = ((BL_PWM_INTERVAL*BL_PWM_COUNT)<<16)/2000;
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static int32_t bl_dim_fraction = 0;
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static int bl_dim_target = 0;
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static int bl_dim_current = 0;
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static enum {DIM_STATE_START, DIM_STATE_MAIN} bl_dim_state = DIM_STATE_START;
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static bool bl_timer_active = false;
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static void backlight_isr(void)
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{
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int timer_period = (TIMER_FREQ*BL_PWM_INTERVAL/1000);
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bool idle = false;
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switch (bl_dim_state)
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{
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/* New cycle */
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case DIM_STATE_START:
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bl_dim_current = bl_dim_fraction >> 16;
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if (bl_dim_current > 0 && bl_dim_current < BL_PWM_COUNT)
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{
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_backlight_on_isr();
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timer_period = (timer_period * bl_dim_current) >> BL_PWM_BITS;
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bl_dim_state = DIM_STATE_MAIN;
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}
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else
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{
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if (bl_dim_current)
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_backlight_on_isr();
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else
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_backlight_off_isr();
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if (bl_dim_current == bl_dim_target)
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idle = true;
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}
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if (bl_dim_current < bl_dim_target)
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{
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bl_dim_fraction = MIN(bl_dim_fraction + bl_fade_in_step,
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(BL_PWM_COUNT<<16));
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}
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else if (bl_dim_current > bl_dim_target)
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{
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bl_dim_fraction = MAX(bl_dim_fraction - bl_fade_out_step, 0);
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}
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break;
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/* Dim main screen */
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case DIM_STATE_MAIN:
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_backlight_off_isr();
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timer_period = (timer_period * (BL_PWM_COUNT - bl_dim_current))
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>> BL_PWM_BITS;
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bl_dim_state = DIM_STATE_START;
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break ;
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}
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if (idle)
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{
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#if defined(_BACKLIGHT_FADE_BOOST) || defined(_BACKLIGHT_FADE_ENABLE)
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queue_post(&backlight_queue, BACKLIGHT_FADE_FINISH, 0);
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#endif
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timer_unregister();
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bl_timer_active = false;
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}
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else
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timer_set_period(timer_period);
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}
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static void backlight_switch(void)
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{
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if (bl_dim_target > (BL_PWM_COUNT/2))
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{
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_backlight_on_normal();
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bl_dim_fraction = (BL_PWM_COUNT<<16);
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}
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else
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{
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_backlight_off_normal();
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bl_dim_fraction = 0;
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}
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}
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static void backlight_release_timer(void)
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{
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#ifdef _BACKLIGHT_FADE_BOOST
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cpu_boost(false);
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#endif
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timer_unregister();
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bl_timer_active = false;
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backlight_switch();
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}
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static void backlight_dim(int value)
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{
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/* protect from extraneous calls with the same target value */
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if (value == bl_dim_target)
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return;
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bl_dim_target = value;
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if (bl_timer_active)
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return ;
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if (timer_register(0, backlight_release_timer, 2, 0, backlight_isr
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IF_COP(, CPU)))
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{
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#ifdef _BACKLIGHT_FADE_BOOST
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/* Prevent cpu frequency changes while dimming. */
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cpu_boost(true);
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#endif
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bl_timer_active = true;
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}
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else
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backlight_switch();
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}
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static void _backlight_on(void)
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{
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#ifdef HAVE_LCD_SLEEP
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backlight_lcd_sleep_countdown(false);
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#endif
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if (bl_fade_in_step > 0)
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{
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#ifdef _BACKLIGHT_FADE_ENABLE
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_backlight_hw_enable(true);
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#endif
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backlight_dim(BL_PWM_COUNT);
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}
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else
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{
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bl_dim_target = BL_PWM_COUNT;
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bl_dim_fraction = (BL_PWM_COUNT<<16);
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_backlight_on_normal();
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}
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}
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static void _backlight_off(void)
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{
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if (bl_fade_out_step > 0)
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{
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backlight_dim(0);
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}
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else
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{
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bl_dim_target = bl_dim_fraction = 0;
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_backlight_off_normal();
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}
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#ifdef HAVE_LCD_SLEEP
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backlight_lcd_sleep_countdown(true);
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#endif
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}
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void backlight_set_fade_in(int value)
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{
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if (value > 0)
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bl_fade_in_step = ((BL_PWM_INTERVAL*BL_PWM_COUNT)<<16) / value;
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else
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bl_fade_in_step = 0;
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}
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void backlight_set_fade_out(int value)
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{
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if (value > 0)
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bl_fade_out_step = ((BL_PWM_INTERVAL*BL_PWM_COUNT)<<16) / value;
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else
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bl_fade_out_step = 0;
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}
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#endif /* defined(HAVE_BACKLIGHT_PWM_FADING) && !defined(SIMULATOR) */
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/* Update state of backlight according to timeout setting */
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static void backlight_update_state(void)
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{
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#ifdef HAS_BUTTON_HOLD
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if ((backlight_on_button_hold != 0)
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#ifdef HAVE_REMOTE_LCD_AS_MAIN
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&& remote_button_hold()
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#else
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&& button_hold()
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#endif
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)
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backlight_timeout = (backlight_on_button_hold == 2) ? 0 : -1;
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/* always on or always off */
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else
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#endif
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#if CONFIG_CHARGING
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if (charger_inserted()
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#ifdef HAVE_USB_POWER
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|| usb_powered()
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#endif
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)
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backlight_timeout = backlight_timeout_plugged;
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else
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#endif
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backlight_timeout = backlight_timeout_normal;
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/* Backlight == OFF in the setting? */
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if (backlight_timeout < 0)
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{
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backlight_timer = 0; /* Disable the timeout */
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_backlight_off();
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}
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else
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{
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backlight_timer = backlight_timeout;
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_backlight_on();
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}
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}
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#ifdef HAVE_REMOTE_LCD
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/* Update state of remote backlight according to timeout setting */
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static void remote_backlight_update_state(void)
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{
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#ifdef HAS_REMOTE_BUTTON_HOLD
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if (remote_button_hold() && (remote_backlight_on_button_hold != 0))
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remote_backlight_timeout = (remote_backlight_on_button_hold == 2)
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? 0 : -1; /* always on or always off */
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else
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#endif
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#if CONFIG_CHARGING
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if (charger_inserted()
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#ifdef HAVE_USB_POWER
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|| usb_powered()
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#endif
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)
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remote_backlight_timeout = remote_backlight_timeout_plugged;
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else
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#endif
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remote_backlight_timeout = remote_backlight_timeout_normal;
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/* Backlight == OFF in the setting? */
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if (remote_backlight_timeout < 0)
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{
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remote_backlight_timer = 0; /* Disable the timeout */
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_remote_backlight_off();
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}
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else
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{
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remote_backlight_timer = remote_backlight_timeout;
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_remote_backlight_on();
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}
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}
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#endif /* HAVE_REMOTE_LCD */
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void backlight_thread(void)
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{
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struct queue_event ev;
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bool locked = false;
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while(1)
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{
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queue_wait(&backlight_queue, &ev);
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switch(ev.id)
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{ /* These events must always be processed */
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#ifdef _BACKLIGHT_FADE_BOOST
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case BACKLIGHT_FADE_FINISH:
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cpu_boost(false);
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break;
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#endif
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#ifdef _BACKLIGHT_FADE_ENABLE
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case BACKLIGHT_FADE_FINISH:
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_backlight_hw_enable((bl_dim_current|bl_dim_target) != 0);
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break;
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#endif
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#ifndef SIMULATOR
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/* Here for now or else the aggressive init messes up scrolling */
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#ifdef HAVE_REMOTE_LCD
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case SYS_REMOTE_PLUGGED:
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lcd_remote_on();
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lcd_remote_update();
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break;
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case SYS_REMOTE_UNPLUGGED:
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lcd_remote_off();
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break;
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#elif defined HAVE_REMOTE_LCD_AS_MAIN
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case SYS_REMOTE_PLUGGED:
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lcd_on();
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lcd_update();
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break;
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case SYS_REMOTE_UNPLUGGED:
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lcd_off();
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break;
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#endif /* HAVE_REMOTE_LCD/ HAVE_REMOTE_LCD_AS_MAIN */
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#endif /* !SIMULATOR */
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#ifdef SIMULATOR
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/* This one here too for lack of a better place */
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case SYS_SCREENDUMP:
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screen_dump();
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break;
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#endif
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case SYS_USB_CONNECTED:
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/* Tell the USB thread that we are safe */
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DEBUGF("backlight_thread got SYS_USB_CONNECTED\n");
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usb_acknowledge(SYS_USB_CONNECTED_ACK);
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break;
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case SYS_USB_DISCONNECTED:
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usb_acknowledge(SYS_USB_DISCONNECTED_ACK);
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break;
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#ifdef BACKLIGHT_DRIVER_CLOSE
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/* Get out of here */
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case BACKLIGHT_QUIT:
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return;
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#endif
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}
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if (locked)
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continue;
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switch(ev.id)
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{ /* These events are only processed if backlight isn't locked */
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#ifdef HAVE_REMOTE_LCD
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case REMOTE_BACKLIGHT_ON:
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remote_backlight_update_state();
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break;
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case REMOTE_BACKLIGHT_OFF:
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remote_backlight_timer = 0; /* Disable the timeout */
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_remote_backlight_off();
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break;
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#endif /* HAVE_REMOTE_LCD */
|
|
|
|
case BACKLIGHT_ON:
|
|
backlight_update_state();
|
|
break;
|
|
|
|
case BACKLIGHT_OFF:
|
|
backlight_timer = 0; /* Disable the timeout */
|
|
_backlight_off();
|
|
break;
|
|
|
|
#ifdef HAVE_LCD_SLEEP
|
|
case LCD_SLEEP:
|
|
lcd_sleep();
|
|
break;
|
|
#endif
|
|
#ifdef HAVE_BUTTON_LIGHT
|
|
case BUTTON_LIGHT_ON:
|
|
buttonlight_update_state();
|
|
break;
|
|
|
|
case BUTTON_LIGHT_OFF:
|
|
buttonlight_timer = 0;
|
|
_buttonlight_off();
|
|
break;
|
|
#endif
|
|
|
|
case SYS_POWEROFF: /* Lock backlight on poweroff so it doesn't */
|
|
locked = true; /* go off before power is actually cut. */
|
|
/* fall through */
|
|
#if CONFIG_CHARGING
|
|
case SYS_CHARGER_CONNECTED:
|
|
case SYS_CHARGER_DISCONNECTED:
|
|
#endif
|
|
backlight_update_state();
|
|
#ifdef HAVE_REMOTE_LCD
|
|
remote_backlight_update_state();
|
|
#endif
|
|
break;
|
|
}
|
|
} /* end while */
|
|
}
|
|
|
|
static void backlight_tick(void)
|
|
{
|
|
if(backlight_timer)
|
|
{
|
|
backlight_timer--;
|
|
if(backlight_timer == 0)
|
|
{
|
|
backlight_off();
|
|
}
|
|
}
|
|
#ifdef HAVE_LCD_SLEEP
|
|
else if(lcd_sleep_timer)
|
|
{
|
|
lcd_sleep_timer--;
|
|
if(lcd_sleep_timer == 0)
|
|
{
|
|
/* Queue on bl thread or freeze! */
|
|
queue_post(&backlight_queue, LCD_SLEEP, 0);
|
|
}
|
|
}
|
|
#endif /* HAVE_LCD_SLEEP */
|
|
|
|
#ifdef HAVE_REMOTE_LCD
|
|
if(remote_backlight_timer)
|
|
{
|
|
remote_backlight_timer--;
|
|
if(remote_backlight_timer == 0)
|
|
{
|
|
remote_backlight_off();
|
|
}
|
|
}
|
|
#endif /* HAVE_REMOVE_LCD */
|
|
#ifdef HAVE_BUTTON_LIGHT
|
|
if (buttonlight_timer)
|
|
{
|
|
buttonlight_timer--;
|
|
if (buttonlight_timer == 0)
|
|
{
|
|
buttonlight_off();
|
|
}
|
|
}
|
|
#endif /* HAVE_BUTTON_LIGHT */
|
|
}
|
|
|
|
void backlight_init(void)
|
|
{
|
|
queue_init(&backlight_queue, true);
|
|
|
|
#ifndef SIMULATOR
|
|
if (_backlight_init())
|
|
{
|
|
# ifdef HAVE_BACKLIGHT_PWM_FADING
|
|
/* If backlight is already on, don't fade in. */
|
|
bl_dim_target = BL_PWM_COUNT;
|
|
bl_dim_fraction = (BL_PWM_COUNT<<16);
|
|
# endif
|
|
}
|
|
#endif
|
|
/* Leave all lights as set by the bootloader here. The settings load will
|
|
* call the appropriate backlight_set_*() functions, only changing light
|
|
* status if necessary. */
|
|
#ifdef BACKLIGHT_DRIVER_CLOSE
|
|
backlight_thread_p =
|
|
#endif
|
|
create_thread(backlight_thread, backlight_stack,
|
|
sizeof(backlight_stack), 0, backlight_thread_name
|
|
IF_PRIO(, PRIORITY_USER_INTERFACE)
|
|
IF_COP(, CPU));
|
|
tick_add_task(backlight_tick);
|
|
}
|
|
|
|
#ifdef BACKLIGHT_DRIVER_CLOSE
|
|
void backlight_close(void)
|
|
{
|
|
struct thread_entry *thread = backlight_thread_p;
|
|
|
|
/* Wait for thread to exit */
|
|
if (thread == NULL)
|
|
return;
|
|
|
|
backlight_thread_p = NULL;
|
|
|
|
queue_post(&backlight_queue, BACKLIGHT_QUIT, 0);
|
|
thread_wait(thread);
|
|
}
|
|
#endif /* BACKLIGHT_DRIVER_CLOSE */
|
|
|
|
void backlight_on(void)
|
|
{
|
|
queue_remove_from_head(&backlight_queue, BACKLIGHT_ON);
|
|
queue_post(&backlight_queue, BACKLIGHT_ON, 0);
|
|
}
|
|
|
|
void backlight_off(void)
|
|
{
|
|
queue_post(&backlight_queue, BACKLIGHT_OFF, 0);
|
|
}
|
|
|
|
/* returns true when the backlight is on,
|
|
* and optionally when it's set to always off. */
|
|
bool is_backlight_on(bool ignore_always_off)
|
|
{
|
|
return (backlight_timer > 0) /* countdown */
|
|
|| (backlight_timeout == 0) /* always on */
|
|
|| ((backlight_timeout < 0) && !ignore_always_off);
|
|
}
|
|
|
|
/* return value in ticks; 0 means always on, <0 means always off */
|
|
int backlight_get_current_timeout(void)
|
|
{
|
|
return backlight_timeout;
|
|
}
|
|
|
|
void backlight_set_timeout(int value)
|
|
{
|
|
backlight_timeout_normal = HZ * value;
|
|
backlight_update_state();
|
|
}
|
|
|
|
#if CONFIG_CHARGING
|
|
void backlight_set_timeout_plugged(int value)
|
|
{
|
|
backlight_timeout_plugged = HZ * value;
|
|
backlight_update_state();
|
|
}
|
|
#endif /* CONFIG_CHARGING */
|
|
|
|
#ifdef HAS_BUTTON_HOLD
|
|
/* Hold button change event handler. */
|
|
void backlight_hold_changed(bool hold_button)
|
|
{
|
|
if (!hold_button || (backlight_on_button_hold > 0))
|
|
/* if unlocked or override in effect */
|
|
backlight_on();
|
|
}
|
|
|
|
void backlight_set_on_button_hold(int index)
|
|
{
|
|
if ((unsigned)index >= 3)
|
|
/* if given a weird value, use default */
|
|
index = 0;
|
|
|
|
backlight_on_button_hold = index;
|
|
backlight_update_state();
|
|
}
|
|
#endif /* HAS_BUTTON_HOLD */
|
|
|
|
#ifdef HAVE_LCD_SLEEP_SETTING
|
|
void lcd_set_sleep_after_backlight_off(int index)
|
|
{
|
|
if ((unsigned)index >= sizeof(lcd_sleep_timeout_value))
|
|
/* if given a weird value, use default */
|
|
index = 3;
|
|
|
|
lcd_sleep_timeout = HZ * lcd_sleep_timeout_value[index];
|
|
|
|
if (backlight_timer > 0 || backlight_get_current_timeout() == 0)
|
|
/* Timer will be set when bl turns off or bl set to on. */
|
|
return;
|
|
|
|
/* Backlight is Off */
|
|
if (lcd_sleep_timeout < 0)
|
|
lcd_sleep_timer = 1; /* Always - sleep next tick */
|
|
else
|
|
lcd_sleep_timer = lcd_sleep_timeout; /* Never, other */
|
|
}
|
|
#endif /* HAVE_LCD_SLEEP_SETTING */
|
|
|
|
#ifdef HAVE_REMOTE_LCD
|
|
void remote_backlight_on(void)
|
|
{
|
|
queue_post(&backlight_queue, REMOTE_BACKLIGHT_ON, 0);
|
|
}
|
|
|
|
void remote_backlight_off(void)
|
|
{
|
|
queue_post(&backlight_queue, REMOTE_BACKLIGHT_OFF, 0);
|
|
}
|
|
|
|
void remote_backlight_set_timeout(int value)
|
|
{
|
|
remote_backlight_timeout_normal = HZ * value;
|
|
remote_backlight_update_state();
|
|
}
|
|
|
|
#if CONFIG_CHARGING
|
|
void remote_backlight_set_timeout_plugged(int value)
|
|
{
|
|
remote_backlight_timeout_plugged = HZ * value;
|
|
remote_backlight_update_state();
|
|
}
|
|
#endif /* CONFIG_CHARGING */
|
|
|
|
#ifdef HAS_REMOTE_BUTTON_HOLD
|
|
/* Remote hold button change event handler. */
|
|
void remote_backlight_hold_changed(bool rc_hold_button)
|
|
{
|
|
if (!rc_hold_button || (remote_backlight_on_button_hold > 0))
|
|
/* if unlocked or override */
|
|
remote_backlight_on();
|
|
}
|
|
|
|
void remote_backlight_set_on_button_hold(int index)
|
|
{
|
|
if ((unsigned)index >= 3)
|
|
/* if given a weird value, use default */
|
|
index = 0;
|
|
|
|
remote_backlight_on_button_hold = index;
|
|
remote_backlight_update_state();
|
|
}
|
|
#endif /* HAS_REMOTE_BUTTON_HOLD */
|
|
|
|
/* return value in ticks; 0 means always on, <0 means always off */
|
|
int remote_backlight_get_current_timeout(void)
|
|
{
|
|
return remote_backlight_timeout;
|
|
}
|
|
|
|
/* returns true when the backlight is on, and
|
|
* optionally when it's set to always off */
|
|
bool is_remote_backlight_on(bool ignore_always_off)
|
|
{
|
|
return (remote_backlight_timer > 0) /* countdown */
|
|
|| (remote_backlight_timeout == 0) /* always on */
|
|
|| ((remote_backlight_timeout < 0) && !ignore_always_off);
|
|
}
|
|
|
|
#endif /* HAVE_REMOTE_LCD */
|
|
|
|
#ifdef HAVE_BACKLIGHT_BRIGHTNESS
|
|
void backlight_set_brightness(int val)
|
|
{
|
|
if (val < MIN_BRIGHTNESS_SETTING)
|
|
val = MIN_BRIGHTNESS_SETTING;
|
|
else if (val > MAX_BRIGHTNESS_SETTING)
|
|
val = MAX_BRIGHTNESS_SETTING;
|
|
|
|
_backlight_set_brightness(val);
|
|
}
|
|
#endif /* HAVE_BACKLIGHT_BRIGHTNESS */
|
|
|
|
#ifdef HAVE_BUTTONLIGHT_BRIGHTNESS
|
|
void buttonlight_set_brightness(int val)
|
|
{
|
|
if (val < MIN_BRIGHTNESS_SETTING)
|
|
val = MIN_BRIGHTNESS_SETTING;
|
|
else if (val > MAX_BRIGHTNESS_SETTING)
|
|
val = MAX_BRIGHTNESS_SETTING;
|
|
|
|
_buttonlight_set_brightness(val);
|
|
}
|
|
#endif /* HAVE_BUTTONLIGHT_BRIGHTNESS */
|
|
|
|
#else /* !defined(HAVE_BACKLIGHT) || !defined(BACKLIGHT_FULL_INIT)
|
|
-- no backlight, empty dummy functions */
|
|
|
|
#if defined(HAVE_BACKLIGHT) && !defined(BACKLIGHT_FULL_INIT)
|
|
void backlight_init(void)
|
|
{
|
|
(void)_backlight_init();
|
|
_backlight_on();
|
|
}
|
|
#endif
|
|
|
|
void backlight_on(void) {}
|
|
void backlight_off(void) {}
|
|
void backlight_set_timeout(int value) {(void)value;}
|
|
|
|
bool is_backlight_on(bool ignore_always_off)
|
|
{
|
|
(void)ignore_always_off;
|
|
return true;
|
|
}
|
|
#ifdef HAVE_REMOTE_LCD
|
|
void remote_backlight_on(void) {}
|
|
void remote_backlight_off(void) {}
|
|
void remote_backlight_set_timeout(int value) {(void)value;}
|
|
|
|
bool is_remote_backlight_on(bool ignore_always_off)
|
|
{
|
|
(void)ignore_always_off;
|
|
return true;
|
|
}
|
|
#endif /* HAVE_REMOTE_LCD */
|
|
#ifdef HAVE_BACKLIGHT_BRIGHTNESS
|
|
void backlight_set_brightness(int val) { (void)val; }
|
|
#endif
|
|
#ifdef HAVE_BUTTONLIGHT_BRIGHTNESS
|
|
void buttonlight_set_brightness(int val) { (void)val; }
|
|
#endif
|
|
#endif /* defined(HAVE_BACKLIGHT) && defined(BACKLIGHT_FULL_INIT) */
|