196 lines
7.1 KiB
C
196 lines
7.1 KiB
C
/************************************************************************************
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* arch/arm/src/lpc17xx_40xx/lpc17_40_lcd.h
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_LPC17XX_40XX_LPC17_40_LCD_H
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#define __ARCH_ARM_SRC_LPC17XX_40XX_LPC17_40_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/lpc17_40_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_LPC17_40_LCD_VRAMBASE
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# define CONFIG_LPC17_40_LCD_VRAMBASE ((uint32_t)LPC17_40_EXTDRAM_CS0 + 0x00010000)
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#endif
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/* LCD refresh rate */
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#ifndef CONFIG_LPC17_40_LCD_REFRESH_FREQ
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# define CONFIG_LPC17_40_LCD_REFRESH_FREQ (50) /* Hz */
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#endif
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/* Bits per pixel / color format */
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#undef LPC17_40_COLOR_FMT
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#if defined(CONFIG_LPC17_40_LCD_BPP1)
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# define LPC17_40_BPP 1
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# define LPC17_40_COLOR_FMT FB_FMT_Y1
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#elif defined(CONFIG_LPC17_40_LCD_BPP2)
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# define LPC17_40_BPP 2
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# define LPC17_40_COLOR_FMT FB_FMT_Y2
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#elif defined(CONFIG_LPC17_40_LCD_BPP4)
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# define LPC17_40_BPP 4
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# define LPC17_40_COLOR_FMT FB_FMT_Y4
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#elif defined(CONFIG_LPC17_40_LCD_BPP8)
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# define LPC17_40_BPP 8
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# define LPC17_40_COLOR_FMT FB_FMT_Y8
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#elif defined(CONFIG_LPC17_40_LCD_BPP16)
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# define LPC17_40_BPP 16
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# define LPC17_40_COLOR_FMT FB_FMT_Y16
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#elif defined(CONFIG_LPC17_40_LCD_BPP24)
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# define LPC17_40_BPP 32 /* Only 24 of 32 bits used for RGB */
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# define LPC17_40_COLOR_FMT FB_FMT_RGB24
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# ifndef CONFIG_LPC17_40_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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#elif defined(CONFIG_LPC17_40_LCD_BPP16_565)
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# define LPC17_40_BPP 16
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# define LPC17_40_COLOR_FMT FB_FMT_RGB16_565
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#elif defined(CONFIG_LPC17_40_LCD_BPP12_444)
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# define LPC17_40_BPP 1 2
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# define LPC17_40_COLOR_FMT FB_FMT_RGB12_444
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#else
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# ifndef CONFIG_LPC17_40_LCD_TFTPANEL
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# warning "Assuming 24 BPP"
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# define LPC17_40_BPP 24
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# define CONFIG_LPC17_40_LCD_BPP24 1
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# define LPC17_40_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 LPC17_40_BPP 16
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# define CONFIG_LPC17_40_LCD_BPP16_565 1
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# define LPC17_40_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_LPC17_40_LCD_BACKCOLOR
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# define CONFIG_LPC17_40_LCD_BACKCOLOR 0 /* Initial background color */
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#endif
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/* Horizontal video characteristics */
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#ifndef CONFIG_LPC17_40_LCD_HWIDTH
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# define CONFIG_LPC17_40_LCD_HWIDTH 480 /* Width in pixels */
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#endif
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#ifndef CONFIG_LPC17_40_LCD_HPULSE
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# define CONFIG_LPC17_40_LCD_HPULSE 2
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#endif
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#ifndef CONFIG_LPC17_40_LCD_HFRONTPORCH
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# define CONFIG_LPC17_40_LCD_HFRONTPORCH 5
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#endif
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#ifndef CONFIG_LPC17_40_LCD_HBACKPORCH
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# define CONFIG_LPC17_40_LCD_HBACKPORCH 40
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#endif
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/* Vertical video characteristics */
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#ifndef CONFIG_LPC17_40_LCD_VHEIGHT
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# define CONFIG_LPC17_40_LCD_VHEIGHT 272 /* Height in rows */
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#endif
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#ifndef CONFIG_LPC17_40_LCD_VPULSE
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# define CONFIG_LPC17_40_LCD_VPULSE 2
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#endif
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#ifndef CONFIG_LPC17_40_LCD_VFRONTPORCH
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# define CONFIG_LPC17_40_LCD_VFRONTPORCH 8
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#endif
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#ifndef CONFIG_LPC17_40_LCD_VBACKPORCH
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# define CONFIG_LPC17_40_LCD_VBACKPORCH 8
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#endif
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/************************************************************************************
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* Public Types
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************************************************************************************/
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/************************************************************************************
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* Public Data
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************************************************************************************/
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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/* The LPC17 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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/************************************************************************************
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* Name: lpc17_40_lcdclear
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*
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* Description:
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* This is a non-standard LCD interface just for the LPC17xx/LPC40xx. Clearing the display
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* in the normal way by writing a sequences of runs that covers the entire display
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* can be slow. Here the display is cleared by simply setting all VRAM memory to
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* the specified color.
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*
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************************************************************************************/
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void lpc17_40_lcdclear(nxgl_mxpixel_t color);
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/************************************************************************************
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* Name: lpc17_40_backlight
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*
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* Description:
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* If CONFIG_LPC17_40_LCD_BACKLIGHT is defined, then the board-specific logic must
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* provide this interface to turn the backlight on and off.
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*
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************************************************************************************/
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#ifdef CONFIG_LPC17_40_LCD_BACKLIGHT
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void lpc17_40_backlight(bool blon);
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#endif
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#endif /* __ARCH_ARM_SRC_LPC17XX_40XX_LPC17_40_LCD_H */
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