rockbox/firmware/target/arm/ipod/backlight-target.h

/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2006 by Barry Wardell
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
#ifndef BACKLIGHT_TARGET_H
#define BACKLIGHT_TARGET_H

#if defined(IPOD_VIDEO) || defined(IPOD_NANO)

bool _backlight_init(void);
void _backlight_set_brightness(int val);
void _backlight_led_on(void);
void _backlight_led_off(void);
void _backlight_hw_enable(bool on);

#ifdef BOOTLOADER
#define _backlight_on()  do { _backlight_hw_enable(true); \
                              _backlight_led_on(); } while(0)
#define _backlight_off() do { _backlight_led_off(); \
                              _backlight_hw_enable(false); } while(0)
#else /* !BOOTLOADER */
#define _backlight_on_isr() _backlight_led_on()
#define _backlight_off_isr() _backlight_led_off()
#define _backlight_on_normal()  do { _backlight_hw_enable(true); \
                                     _backlight_led_on(); } while(0)
#define _backlight_off_normal() do { _backlight_led_off(); \
                                     _backlight_hw_enable(false); } while(0)
#define _BACKLIGHT_FADE_ENABLE
#endif /* !BOOTLOADER */

#elif defined HAVE_BACKLIGHT_PWM_FADING

#define _backlight_init() true
void _backlight_hw_on(void);
void _backlight_hw_off(void);

#ifdef BOOTLOADER
#define _backlight_on() _backlight_hw_on()
#define _backlight_off() _backlight_hw_off()
#else
#define _backlight_on_isr() _backlight_hw_on()
#define _backlight_off_isr() _backlight_hw_off()
#define _backlight_on_normal() _backlight_hw_on()
#define _backlight_off_normal() _backlight_hw_off()
#endif

#else

#define _backlight_init() true
void _backlight_on(void);
void _backlight_off(void);
#endif

#endif