| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2007 by Karl Kurbjun |
| * |
| * 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 "config.h" |
| #include "cpu.h" |
| #include "system.h" |
| #include "backlight-target.h" |
| #include "backlight.h" |
| #include "lcd.h" |
| #include "power.h" |
| #include "spi-target.h" |
| |
| void _backlight_on(void) |
| { |
| _backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING); |
| } |
| |
| void _backlight_off(void) |
| { |
| _backlight_set_brightness(0); |
| } |
| |
| /* Assumes that the backlight has been initialized */ |
| void _backlight_set_brightness(int brightness) |
| { |
| uint8_t bl_command[] = {0xa4, 0x00, brightness, 0xbb}; |
| spi_block_transfer(SPI_target_BACKLIGHT, bl_command, 4, 0, 0); |
| } |
| |
| void __backlight_dim(bool dim_now) |
| { |
| _backlight_set_brightness(dim_now ? |
| DEFAULT_BRIGHTNESS_SETTING : |
| DEFAULT_DIMNESS_SETTING); |
| } |
| |
| bool _backlight_init(void) |
| { |
| _backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING); |
| return true; |
| } |