From 08fb3f65745a237e2c1eae55d856ff27702246e5 Mon Sep 17 00:00:00 2001 From: Amaury Pouly Date: Sun, 1 May 2011 13:02:46 +0000 Subject: Sansa Fuze+: initial commit (bootloader only, LCD basically working) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29808 a1c6a512-1295-4272-9138-f99709370657 --- .../arm/imx233/sansa-fuzeplus/backlight-fuzeplus.c | 66 ++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 firmware/target/arm/imx233/sansa-fuzeplus/backlight-fuzeplus.c (limited to 'firmware/target/arm/imx233/sansa-fuzeplus/backlight-fuzeplus.c') diff --git a/firmware/target/arm/imx233/sansa-fuzeplus/backlight-fuzeplus.c b/firmware/target/arm/imx233/sansa-fuzeplus/backlight-fuzeplus.c new file mode 100644 index 0000000000..0638e30aeb --- /dev/null +++ b/firmware/target/arm/imx233/sansa-fuzeplus/backlight-fuzeplus.c @@ -0,0 +1,66 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2011 by Amaury Pouly + * + * 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 "system.h" +#include "lcd.h" +#include "backlight.h" +#include "backlight-target.h" +#include "pinctrl-imx233.h" + +void _backlight_set_brightness(int brightness) +{ + imx233_set_gpio_output(1, 28, false); + udelay(600); + while(brightness-- > 0) + { + imx233_set_gpio_output(1, 28, false); + imx233_set_gpio_output(1, 28, true); + } +} + +bool _backlight_init(void) +{ + imx233_set_pin_function(1, 28, PINCTRL_FUNCTION_GPIO); + imx233_set_pin_drive_strength(1, 28, PINCTRL_DRIVE_8mA); + imx233_enable_gpio_output(1, 28, true); + imx233_set_gpio_output(1, 29, true); + udelay(600); + _backlight_set_brightness(100); + return true; +} + +void _backlight_on(void) +{ +#ifdef HAVE_LCD_ENABLE + lcd_enable(true); /* power on lcd + visible display */ +#endif + /* don't do anything special, the core will set the brightness */ +} + +void _backlight_off(void) +{ + /* there is no real on/off but we can set to 0 brightness */ + _backlight_set_brightness(0); +#ifdef HAVE_LCD_ENABLE + lcd_enable(false); /* power off visible display */ +#endif +} -- cgit v1.2.3