/**************************************************************************** * arch/arm/src/imxrt/imxrt_lcd.c * * Copyright (C) 2019 Gregory Nutt. All rights reserved. * Author: Johannes Schock * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /* The I.MX RT LCD driver uses the common framebuffer interfaces declared in * include/nuttx/video/fb.h. */ #ifndef __ARCH_ARM_SRC_IMXRT_IMXRT_LCD_H #define __ARCH_ARM_SRC_IMXRT_IMXRT_LCD_H /**************************************************************************** * Included Files ****************************************************************************/ #include "hardware/imxrt_lcd.h" #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Configuration */ #ifndef IMXRT_LCD_VIDEO_PLL_FREQ # define IMXRT_LCD_VIDEO_PLL_FREQ 92000000 #endif /* Base address of the video RAM frame buffer */ #ifndef CONFIG_IMXRT_LCD_VRAMBASE # define CONFIG_IMXRT_LCD_VRAMBASE (0x20240000) #endif /* LCD refresh rate */ #ifndef CONFIG_IMXRT_LCD_REFRESH_FREQ # define CONFIG_IMXRT_LCD_REFRESH_FREQ (60) /* Hz */ #endif #undef IMXRT_BPP #undef IMXRT_COLOR_FMT /* Bits per pixel / color format */ #if defined (CONFIG_IMXRT_LCD_INPUT_BPP8_LUT) # define IMXRT_BPP 8 # define IMXRT_COLOR_FMT FB_FMT_RGB8 #elif defined (CONFIG_IMXRT_LCD_INPUT_BPP8) # define IMXRT_BPP 8 # define IMXRT_COLOR_FMT FB_FMT_RGB8_332 #elif defined (CONFIG_IMXRT_LCD_INPUT_BPP15) # define IMXRT_BPP 16 # define IMXRT_COLOR_FMT FB_FMT_RGB16_555 #elif defined (CONFIG_IMXRT_LCD_INPUT_BPP16) # define IMXRT_BPP 16 # define IMXRT_COLOR_FMT FB_FMT_RGB16_565 #elif defined (CONFIG_IMXRT_LCD_INPUT_BPP24) # define IMXRT_BPP 24 # define IMXRT_COLOR_FMT FB_FMT_RGB24 #elif defined (CONFIG_IMXRT_LCD_INPUT_BPP32) # define IMXRT_BPP 32 # define IMXRT_COLOR_FMT FB_FMT_RGB32 #else # define CONFIG_IMXRT_LCD_INPUT_BPP16 # define IMXRT_BPP 16 # define IMXRT_COLOR_FMT FB_FMT_RGB16_565 #endif #if defined (CONFIG_IMXRT_LCD_OUTPUT_8) #elif defined (CONFIG_IMXRT_LCD_OUTPUT_16) #elif defined (CONFIG_IMXRT_LCD_OUTPUT_18) #elif defined (CONFIG_IMXRT_LCD_OUTPUT_24) #else # define CONFIG_IMXRT_LCD_OUTPUT_24 #endif #ifndef CONFIG_IMXRT_LCD_BACKCOLOR # define CONFIG_IMXRT_LCD_BACKCOLOR 0x0 #endif #ifndef CONFIG_IMXRT_LCD_HWIDTH # define CONFIG_IMXRT_LCD_HWIDTH 480 #endif #ifndef CONFIG_IMXRT_LCD_HPULSE # define CONFIG_IMXRT_LCD_HPULSE 41 #endif #ifndef CONFIG_IMXRT_LCD_HFRONTPORCH # define CONFIG_IMXRT_LCD_HFRONTPORCH 4 #endif #ifndef CONFIG_IMXRT_LCD_HBACKPORCH # define CONFIG_IMXRT_LCD_HBACKPORCH 8 #endif #ifndef CONFIG_IMXRT_LCD_VHEIGHT # define CONFIG_IMXRT_LCD_VHEIGHT 272 #endif #ifndef CONFIG_IMXRT_LCD_VPULSE # define CONFIG_IMXRT_LCD_VPULSE 10 #endif #ifndef CONFIG_IMXRT_LCD_VFRONTPORCH # define CONFIG_IMXRT_LCD_VFRONTPORCH 4 #endif #ifndef CONFIG_IMXRT_LCD_VBACKPORCH # define CONFIG_IMXRT_LCD_VBACKPORCH 2 #endif #ifdef CONFIG_IMXRT_VSYNC_ACTIVE_HIGH # define VSYNC_POL LCDIF_VDCTRL0_VSYNC_POL_MASK #else # define VSYNC_POL 0 #endif #ifdef CONFIG_IMXRT_HSYNC_ACTIVE_HIGH # define HSYNC_POL LCDIF_VDCTRL0_HSYNC_POL_MASK #else # define HSYNC_POL 0 #endif #ifdef CONFIG_IMXRT_DATAEN_ACTIVE_HIGH # define DATAEN_POL LCDIF_VDCTRL0_ENABLE_POL_MASK #else # define DATAEN_POL 0 #endif #ifdef CONFIG_IMXRT_DATA_RISING_EDGE # define DATA_EDGE LCDIF_VDCTRL0_DOTCLK_POL_MASK #else # define DATA_EDGE 0 #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: IMXRT_lcdclear * * Description: * This is a non-standard LCD interface just for the I.MX RT. Clearing * the display in the normal way by writing a sequences of runs that * covers the entire display can be slow. Here the display is cleared by * simply setting all VRAM memory to the specified color. * ****************************************************************************/ void imxrt_lcdclear(nxgl_mxpixel_t color); /**************************************************************************** * Name: imxrt_lcd_initialize * * Description: * Initialize the LCD. Setup backlight (initially off) * ****************************************************************************/ void imxrt_lcdinitialize(void); /**************************************************************************** * Name: IMXRT_backlight * * Description: * If CONFIG_IMXRT_LCD_BACKLIGHT is defined, then the board-specific logic * must provide this interface to turn the backlight on and off. * ****************************************************************************/ #ifdef CONFIG_IMXRT_LCD_BACKLIGHT void imxrt_backlight(bool blon); #endif #endif /* __ARCH_ARM_SRC_IMXRT_IMXRT_LCD_H */