94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/****************************************************************************
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* boards/arm/imxrt/imxrt1064-evk/src/imxrt_lcd.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdbool.h>
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#include <debug.h>
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#include "imxrt_lcd.h"
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#include "imxrt_gpio.h"
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#include "imxrt1064-evk.h"
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#include <arch/board/board.h>
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#ifdef CONFIG_IMXRT_LCD
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: imxrt_lcd_bkl_pin_setup
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*
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* Description:
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* Setup backlight pin (initially off)
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*
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****************************************************************************/
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void imxrt_lcd_pkl_pin_setup(void)
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{
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imxrt_config_gpio(GPIO_LCD_BL);
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}
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/****************************************************************************
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* Name: imxrt_backlight
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*
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* Description:
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* If CONFIG_IMXRT_LCD_BACKLIGHT is defined, then the board-specific
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* logic must provide this interface to turn the backlight on and off.
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*
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****************************************************************************/
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#ifdef CONFIG_IMXRT_LCD_BACKLIGHT
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void imxrt_backlight(bool blon)
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{
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imxrt_gpio_write(GPIO_LCD_BL, blon); /* High illuminates */
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}
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#endif
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/****************************************************************************
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* Name: imxrt_lcd_initialize
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*
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* Description:
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* Initialization of the LCD blackligt and pin for the imxrt_bringup().
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*
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****************************************************************************/
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void imxrt_lcd_initialize(void)
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{
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/* Setup the backlight pin */
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imxrt_lcd_pkl_pin_setup();
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#ifdef CONFIG_IMXRT_LCD_BACKLIGHT
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/* Turn ON the backlight */
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imxrt_backlight(true);
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#endif
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}
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#endif /* CONFIG_IMXRT_LCD */
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