86 lines
2.4 KiB
C
86 lines
2.4 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) 2008 by Rob Purchase
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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 "backlight-target.h"
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#include "system.h"
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#include "backlight.h"
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#include "pcf50606.h"
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#include "pcf50635.h"
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#include "tcc780x.h"
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#include "power-target.h"
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int _backlight_init(void)
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{
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_backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
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/* set backlight on by default, since the screen is unreadable without it */
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_backlight_on();
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return true;
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}
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void _backlight_set_brightness(int brightness)
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{
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int level = disable_irq_save();
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if (get_pmu_type() == PCF50606)
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{
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pcf50606_write(PCF5060X_PWMC1,
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0xe1 | (MAX_BRIGHTNESS_SETTING-brightness)<<1);
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pcf50606_write(PCF5060X_GPOC1, 0x3);
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}
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else
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{
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static const int brightness_lookup[MAX_BRIGHTNESS_SETTING+1] =
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{0x1, 0x8, 0xa, 0xe, 0x12, 0x16, 0x19, 0x1b, 0x1e,
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0x21, 0x24, 0x26, 0x28, 0x2a, 0x2c};
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pcf50635_write(PCF5063X_REG_LEDOUT, brightness_lookup[brightness]);
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}
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restore_irq(level);
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}
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void _backlight_on(void)
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{
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if (get_pmu_type() == PCF50606)
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{
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GPIOA_SET = (1<<6);
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}
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else
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{
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int level = disable_irq_save();
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pcf50635_write(PCF5063X_REG_LEDENA, 1);
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restore_irq(level);
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}
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}
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void _backlight_off(void)
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{
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if (get_pmu_type() == PCF50606)
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{
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GPIOA_CLEAR = (1<<6);
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}
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else
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{
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int level = disable_irq_save();
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pcf50635_write(PCF5063X_REG_LEDENA, 0);
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restore_irq(level);
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}
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}
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