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//
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//
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//
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//
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//    Copyright 2010 TheSeven
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//    Copyright 2010 TheSeven
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//
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//
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//
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//
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//    This file is part of emBIOS.
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//    This file is part of emBIOS.
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//
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//
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//    emBIOS is free software: you can redistribute it and/or
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//    emBIOS is free software: you can redistribute it and/or
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//    modify it under the terms of the GNU General Public License as
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//    modify it under the terms of the GNU General Public License as
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//    published by the Free Software Foundation, either version 2 of the
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//    published by the Free Software Foundation, either version 2 of the
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//    License, or (at your option) any later version.
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//    License, or (at your option) any later version.
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//
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//
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//    emBIOS is distributed in the hope that it will be useful,
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//    emBIOS is distributed in the hope that it will be useful,
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//    but WITHOUT ANY WARRANTY; without even the implied warranty of
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//    but WITHOUT ANY WARRANTY; without even the implied warranty of
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//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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//    See the GNU General Public License for more details.
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//    See the GNU General Public License for more details.
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//
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//
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//    You should have received a copy of the GNU General Public License along
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//    You should have received a copy of the GNU General Public License along
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//    with emBIOS.  If not, see <http://www.gnu.org/licenses/>.
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//    with emBIOS.  If not, see <http://www.gnu.org/licenses/>.
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//
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//
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//
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//
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#include "global.h"
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#include "global.h"
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#include "i2c.h"
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#include "i2c.h"
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#include "backlight.h"
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#include "backlight.h"
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static bool backlight_fade;
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static bool backlight_fade;
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void backlight_init()
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{
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}
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void backlight_on(bool on)
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void backlight_on(bool on)
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{
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{
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    i2c_sendbyte(0, 0xe6, 0x31, (backlight_fade ? 2 : 0) + (on ? 1 : 0));
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    i2c_sendbyte(0, 0xe6, 0x31, (backlight_fade ? 2 : 0) + (on ? 1 : 0));
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}
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}
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void backlight_set_fade(uint8_t fade)
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void backlight_set_fade(uint8_t fade)
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{
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{
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    backlight_fade = fade;
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    backlight_fade = fade;
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}
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}
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void backlight_set_brightness(uint8_t brightness)
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void backlight_set_brightness(uint8_t brightness)
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{
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{
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    i2c_sendbyte(0, 0xe6, 0x30, (250 * (brightness & 0xff)) >> 8);
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    i2c_sendbyte(0, 0xe6, 0x30, (250 * (brightness & 0xff)) >> 8);
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}
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}