175 lines
5.6 KiB
C
175 lines
5.6 KiB
C
/****************************************************************************
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* arch/arm/src/lpc54xx/lpc54_lcd.h
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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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/* The LPC54 LCD driver uses the common framebuffer interfaces declared in
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* include/nuttx/video/fb.h.
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*/
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#ifndef __ARCH_ARM_SRC_LPC54XX_LPC54_LCD_H
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#define __ARCH_ARM_SRC_LPC54XX_LPC54_LCD_H
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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 <nuttx/nx/nxglib.h>
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#include "hardware/lpc54_lcd.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration */
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/* Base address of the video RAM frame buffer */
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#ifndef CONFIG_LPC54_LCD_VRAMBASE
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# define CONFIG_LPC54_LCD_VRAMBASE ((uint32_t)LPC54_EXTDRAM_CS0 + 0x00010000)
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#endif
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/* LCD refresh rate */
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#ifndef CONFIG_LPC54_LCD_REFRESH_FREQ
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# define CONFIG_LPC54_LCD_REFRESH_FREQ (50) /* Hz */
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#endif
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/* Bits per pixel / color format */
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#undef LPC54_COLOR_FMT
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#if defined(CONFIG_LPC54_LCD_BPP1)
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# define LPC54_BPP 1
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# define LPC54_COLOR_FMT FB_FMT_Y1
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#elif defined(CONFIG_LPC54_LCD_BPP2)
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# define LPC54_BPP 2
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# define LPC54_COLOR_FMT FB_FMT_Y2
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#elif defined(CONFIG_LPC54_LCD_BPP4)
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# define LPC54_BPP 4
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# define LPC54_COLOR_FMT FB_FMT_Y4
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#elif defined(CONFIG_LPC54_LCD_BPP8)
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# define LPC54_BPP 8
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# define LPC54_COLOR_FMT FB_FMT_Y8
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#elif defined(CONFIG_LPC54_LCD_BPP12_444)
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# define LPC54_BPP 1 12
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# define LPC54_COLOR_FMT FB_FMT_RGB12_444
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#elif defined(CONFIG_LPC54_LCD_BPP16)
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# define LPC54_BPP 16
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# define LPC54_COLOR_FMT FB_FMT_Y16
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#elif defined(CONFIG_LPC54_LCD_BPP16_565)
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# define LPC54_BPP 16
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# define LPC54_COLOR_FMT FB_FMT_RGB16_565
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#elif defined(CONFIG_LPC54_LCD_BPP24)
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# define LPC54_BPP 32 /* Only 24 of 32 bits used for RGB */
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# define LPC54_COLOR_FMT FB_FMT_RGB24
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# ifndef CONFIG_LPC54_LCD_TFTPANEL
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# error "24 BPP is only available for a TFT panel"
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# endif
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#else
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# ifndef CONFIG_LPC54_LCD_TFTPANEL
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# warning "Assuming 24 BPP"
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# define LPC54_BPP 24
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# define CONFIG_LPC54_LCD_BPP24 1
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# define LPC54_COLOR_FMT FB_FMT_RGB24
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# else
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# warning "Assuming 16 BPP 5:6:5"
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# define LPC54_BPP 16
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# define CONFIG_LPC54_LCD_BPP16_565 1
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# define LPC54_COLOR_FMT FB_FMT_RGB16_565
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# endif
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#endif
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/* Background color */
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#ifndef CONFIG_LPC54_LCD_BACKCOLOR
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# define CONFIG_LPC54_LCD_BACKCOLOR 0 /* Initial background color */
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#endif
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/* Horizontal video characteristics */
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#ifndef CONFIG_LPC54_LCD_HWIDTH
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# define CONFIG_LPC54_LCD_HWIDTH 480 /* Width in pixels */
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#endif
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#ifndef CONFIG_LPC54_LCD_HPULSE
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# define CONFIG_LPC54_LCD_HPULSE 2
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#endif
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#ifndef CONFIG_LPC54_LCD_HFRONTPORCH
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# define CONFIG_LPC54_LCD_HFRONTPORCH 5
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#endif
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#ifndef CONFIG_LPC54_LCD_HBACKPORCH
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# define CONFIG_LPC54_LCD_HBACKPORCH 40
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#endif
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/* Vertical video characteristics */
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#ifndef CONFIG_LPC54_LCD_VHEIGHT
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# define CONFIG_LPC54_LCD_VHEIGHT 272 /* Height in rows */
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#endif
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#ifndef CONFIG_LPC54_LCD_VPULSE
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# define CONFIG_LPC54_LCD_VPULSE 2
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#endif
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#ifndef CONFIG_LPC54_LCD_VFRONTPORCH
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# define CONFIG_LPC54_LCD_VFRONTPORCH 8
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#endif
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#ifndef CONFIG_LPC54_LCD_VBACKPORCH
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# define CONFIG_LPC54_LCD_VBACKPORCH 8
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#endif
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/****************************************************************************
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* Public Functions Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: lpc54_lcdclear
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*
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* Description:
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* This is a non-standard LCD interface just for the LPC54xx. Clearing
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* the display in the normal way by writing a sequences of runs that
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* covers the entire display can be slow. Here the display is cleared by
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* simply setting all VRAM memory to the specified color.
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*
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****************************************************************************/
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void lpc54_lcdclear(nxgl_mxpixel_t color);
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/****************************************************************************
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* Name: lpc54_backlight
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*
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* Description:
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* If CONFIG_LPC54_LCD_BACKLIGHT is defined, then the board-specific logic
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* 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_LPC54_LCD_BACKLIGHT
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void lpc54_backlight(bool blon);
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#endif
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#endif /* __ARCH_ARM_SRC_LPC54XX_LPC54_LCD_H */
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