| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2008 by Rob Purchase |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| ****************************************************************************/ |
| #include "backlight-target.h" |
| #include "system.h" |
| #include "backlight.h" |
| #include "pcf50606.h" |
| #include "tcc780x.h" |
| |
| static unsigned short backlight_brightness = DEFAULT_BRIGHTNESS_SETTING; |
| |
| int _backlight_init(void) |
| { |
| _backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING); |
| return true; |
| } |
| |
| void _backlight_set_brightness(int brightness) |
| { |
| backlight_brightness = brightness; |
| |
| int level = disable_irq_save(); |
| pcf50606_write(PCF5060X_PWMC1, 0xe1 | (14-backlight_brightness)<<1); |
| pcf50606_write(PCF5060X_GPOC1, 0x3); |
| restore_irq(level); |
| |
| if (brightness > 0) |
| _backlight_on(); |
| else |
| _backlight_off(); |
| } |
| |
| void _backlight_on(void) |
| { |
| GPIOA_SET = (1<<6); |
| } |
| |
| void _backlight_off(void) |
| { |
| GPIOA_CLEAR = (1<<6); |
| } |