917 lines
28 KiB
C
917 lines
28 KiB
C
/****************************************************************************
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* drivers/lcd/jd9851.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 <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/lcd/lcd.h>
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#include <nuttx/lcd/jd9851.h>
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#include "jd9851.h"
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#ifdef CONFIG_LCD_JD9851
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Verify that all configuration requirements have been met */
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#ifndef CONFIG_LCD_JD9851_SPIMODE
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# define CONFIG_LCD_JD9851_SPIMODE SPIDEV_MODE0
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#endif
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/* SPI frequency */
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#ifndef CONFIG_LCD_JD9851_FREQUENCY
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# define CONFIG_LCD_JD9851_FREQUENCY 1000000
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#endif
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/* Check contrast selection */
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#if !defined(CONFIG_LCD_MAXCONTRAST)
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# define CONFIG_LCD_MAXCONTRAST 1
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#endif
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/* Check power setting */
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#if !defined(CONFIG_LCD_MAXPOWER) || CONFIG_LCD_MAXPOWER < 1
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# define CONFIG_LCD_MAXPOWER 1
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#endif
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#if CONFIG_LCD_MAXPOWER > 255
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# error "CONFIG_LCD_MAXPOWER must be less than 256 to fit in uint8_t"
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#endif
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/* Check orientation */
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#if defined(CONFIG_LCD_PORTRAIT)
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# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) ||\
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defined(CONFIG_LCD_RPORTRAIT)
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# error "Cannot define both portrait and any other orientations"
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# endif
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#elif defined(CONFIG_LCD_RPORTRAIT)
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# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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# error "Cannot define both rportrait and any other orientations"
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# endif
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#elif defined(CONFIG_LCD_LANDSCAPE)
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# ifdef CONFIG_LCD_RLANDSCAPE
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# error "Cannot define both landscape and any other orientations"
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# endif
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#elif !defined(CONFIG_LCD_RLANDSCAPE)
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# define CONFIG_LCD_LANDSCAPE 1
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#endif
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/* Display Resolution */
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#if !defined(CONFIG_LCD_JD9851_XRES)
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# define CONFIG_LCD_JD9851_XRES 240
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#endif
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#if !defined(CONFIG_LCD_JD9851_YRES)
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# define CONFIG_LCD_JD9851_YRES 320
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#endif
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#if !defined(CONFIG_LCD_JD9851_BPP)
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# define CONFIG_LCD_JD9851_BPP 16
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#endif
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#if !defined(CONFIG_LCD_JD9851_XOFFSET)
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# define CONFIG_LCD_JD9851_XOFFSET 0
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#endif
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#if !defined(CONFIG_LCD_JD9851_YOFFSET)
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# define CONFIG_LCD_JD9851_YOFFSET 0
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#endif
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#define JD9851_LUT_SIZE CONFIG_LCD_JD9851_YRES
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#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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# define JD9851_XRES CONFIG_LCD_JD9851_YRES
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# define JD9851_YRES CONFIG_LCD_JD9851_XRES
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# define JD9851_XOFFSET CONFIG_LCD_JD9851_YOFFSET
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# define JD9851_YOFFSET CONFIG_LCD_JD9851_XOFFSET
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#else
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# define JD9851_XRES CONFIG_LCD_JD9851_XRES
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# define JD9851_YRES CONFIG_LCD_JD9851_YRES
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# define JD9851_XOFFSET CONFIG_LCD_JD9851_XOFFSET
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# define JD9851_YOFFSET CONFIG_LCD_JD9851_YOFFSET
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#endif
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/* Color depth and format */
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#ifdef CONFIG_LCD_JD9851_BPP
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# if (CONFIG_LCD_JD9851_BPP == 16)
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# define JD9851_BPP 16
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# define JD9851_COLORFMT FB_FMT_RGB16_565
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# define JD9851_BYTESPP 2
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# else
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# define JD9851_BPP 16
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# define JD9851_COLORFMT FB_FMT_RGB16_565
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# define JD9851_BYTESPP 2
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# warning "Invalid color depth. Falling back to 16bpp"
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# endif
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/* This structure describes the state of this driver */
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struct jd9851_dev_s
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{
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/* Publicly visible device structure */
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struct lcd_dev_s dev;
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/* Private LCD-specific information follows */
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FAR struct spi_dev_s *spi; /* SPI device */
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uint8_t bpp; /* Selected color depth */
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uint8_t power; /* Current power setting */
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/* This is working memory allocated by the LCD driver for each LCD device
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* and for each color plane. This memory will hold one raster line of data.
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* The size of the allocated run buffer must therefore be at least
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* (bpp * xres / 8). Actual alignment of the buffer must conform to the
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* bitwidth of the underlying pixel type.
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*
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* If there are multiple planes, they may share the same working buffer
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* because different planes will not be operate on concurrently. However,
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* if there are multiple LCD devices, they must each have unique run
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* buffers.
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*/
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uint16_t runbuffer[JD9851_LUT_SIZE];
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};
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/****************************************************************************
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* Private Function Protototypes
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****************************************************************************/
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/* Misc. Helpers */
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static void jd9851_select(FAR struct spi_dev_s *spi, int bits);
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static void jd9851_deselect(FAR struct spi_dev_s *spi);
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static inline void jd9851_sendcmd(FAR struct jd9851_dev_s *dev, uint8_t cmd);
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static void jd9851_cmddata(FAR struct jd9851_dev_s *dev, uint8_t cmd,
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const uint8_t *data, int len);
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static void jd9851_init(FAR struct jd9851_dev_s *dev);
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static void jd9851_sleep(FAR struct jd9851_dev_s *dev, bool sleep);
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static void jd9851_setorientation(FAR struct jd9851_dev_s *dev);
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static void jd9851_display(FAR struct jd9851_dev_s *dev, bool on);
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static void jd9851_setcursor(FAR struct jd9851_dev_s *dev,
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uint16_t x0, uint16_t y0,
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uint16_t x1, uint16_t y1);
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static void jd9851_bpp(FAR struct jd9851_dev_s *dev, int bpp);
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static void jd9851_wrram(FAR struct jd9851_dev_s *dev,
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FAR const uint8_t *buff, size_t size , size_t skip,
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size_t count);
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#ifndef CONFIG_LCD_NOGETRUN
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static void jd9851_rdram(FAR struct jd9851_dev_s *dev,
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FAR uint16_t *buff, size_t size);
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#endif
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static void jd9851_fill(FAR struct jd9851_dev_s *dev, uint16_t color);
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/* LCD Data Transfer Methods */
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static int jd9851_putrun(FAR struct lcd_dev_s *dev,
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fb_coord_t row, fb_coord_t col,
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FAR const uint8_t *buffer, size_t npixels);
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static int jd9851_putarea(FAR struct lcd_dev_s *dev,
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fb_coord_t row_start, fb_coord_t row_end,
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fb_coord_t col_start, fb_coord_t col_end,
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FAR const uint8_t *buffer, fb_coord_t stride);
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#ifndef CONFIG_LCD_NOGETRUN
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static int jd9851_getrun(FAR struct lcd_dev_s *dev,
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fb_coord_t row, fb_coord_t col,
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FAR uint8_t *buffer, size_t npixels);
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#endif
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/* LCD Configuration */
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static int jd9851_getvideoinfo(FAR struct lcd_dev_s *dev,
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FAR struct fb_videoinfo_s *vinfo);
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static int jd9851_getplaneinfo(FAR struct lcd_dev_s *dev,
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unsigned int planeno,
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FAR struct lcd_planeinfo_s *pinfo);
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/* LCD Specific Controls */
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static int jd9851_getpower(FAR struct lcd_dev_s *dev);
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static int jd9851_setpower(FAR struct lcd_dev_s *dev, int power);
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static int jd9851_getcontrast(FAR struct lcd_dev_s *dev);
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static int jd9851_setcontrast(FAR struct lcd_dev_s *dev,
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unsigned int contrast);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static struct jd9851_dev_s g_lcddev;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: jd9851_select
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*
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* Description:
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* Select the SPI, locking and re-configuring if necessary
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*
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* Input Parameters:
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* spi - Reference to the SPI driver structure
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* bits - Number of SPI bits
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*
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* Returned Value:
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* None
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*
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* Assumptions:
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*
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****************************************************************************/
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static void jd9851_select(FAR struct spi_dev_s *spi, int bits)
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{
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/* Select JD9851 chip (locking the SPI bus in case there are multiple
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* devices competing for the SPI bus
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*/
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SPI_LOCK(spi, true);
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SPI_SELECT(spi, SPIDEV_DISPLAY(0), true);
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/* Now make sure that the SPI bus is configured for the JD9851 (it
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* might have gotten configured for a different device while unlocked)
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*/
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SPI_SETMODE(spi, CONFIG_LCD_JD9851_SPIMODE);
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SPI_SETBITS(spi, bits);
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SPI_SETFREQUENCY(spi, CONFIG_LCD_JD9851_FREQUENCY);
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}
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/****************************************************************************
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* Name: jd9851_deselect
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*
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* Description:
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* De-select the SPI
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*
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* Input Parameters:
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* spi - Reference to the SPI driver structure
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*
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* Returned Value:
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* None
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*
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* Assumptions:
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*
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****************************************************************************/
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static void jd9851_deselect(FAR struct spi_dev_s *spi)
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{
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/* De-select JD9851 chip and relinquish the SPI bus. */
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SPI_SELECT(spi, SPIDEV_DISPLAY(0), false);
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SPI_LOCK(spi, false);
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}
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/****************************************************************************
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* Name: jd9851_sendcmd
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*
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* Description:
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* Send a command to the driver.
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*
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****************************************************************************/
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static inline void jd9851_sendcmd(FAR struct jd9851_dev_s *dev, uint8_t cmd)
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{
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jd9851_select(dev->spi, 8);
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SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), true);
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SPI_SEND(dev->spi, cmd);
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SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), false);
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jd9851_deselect(dev->spi);
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}
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/****************************************************************************
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* Name: jd9851_cmddata
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*
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* Description:
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* Send a command and a series of data to the driver.
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*
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****************************************************************************/
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static void jd9851_cmddata(FAR struct jd9851_dev_s *dev, uint8_t cmd,
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const uint8_t *data, int len)
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{
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jd9851_select(dev->spi, 8);
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SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), true);
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SPI_SEND(dev->spi, cmd);
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SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), false);
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SPI_SNDBLOCK(dev->spi, data, len);
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jd9851_deselect(dev->spi);
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}
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/****************************************************************************
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* Name: jd9851_init
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*
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* Description:
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* Send jd9851 internal init commands.
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*
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* Assumption/Limitations:
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* Initialization is hardware-specific and may need to be rewritten for
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* different modules.
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*
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****************************************************************************/
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static void jd9851_init(FAR struct jd9851_dev_s *dev)
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{
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jd9851_cmddata(dev, JD9851_PASSWORD, (const uint8_t *) "\x98\x51\xe9", 3);
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jd9851_cmddata(dev, JD9851_SET_PAGE_CMD, (const uint8_t *) "\x00", 1);
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jd9851_cmddata(dev, JD9851_GAMMA_SET_CMD, (const uint8_t *)
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"\x1b\x7a\x17\x32", 4);
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jd9851_cmddata(dev, JD9851_R_GAMMA_SET_CMD, (const uint8_t *)
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"\x3c\x32\x2b\x2c\x2f\x32\x2c\x2b\x28\x27\x22\x16\x10\x0b\
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\x05\x0e\x3c\x32\x2b\x2c\x2f\x32\x2c\x2b\x28\x27\x22\x16\
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\x10\x0b\x05\x0e", 32);
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jd9851_cmddata(dev, JD9851_POWER_CTRL, (const uint8_t *)
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"\x33\x28\xcc", 3);
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jd9851_cmddata(dev, JD9851_DCDC_SET, (const uint8_t *)
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"\x47\x7a\x30\x30\x6c\x60\x50\x70", 8);
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jd9851_cmddata(dev, JD9851_VDDD_CTRL, (const uint8_t *) "\x38\x3c", 2);
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jd9851_cmddata(dev, JD9851_SETSTBA, (const uint8_t *) "\x31\x20", 2);
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jd9851_cmddata(dev, JD9851_SETPANEL, (const uint8_t *) "\x16", 1);
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jd9851_cmddata(dev, JD9851_SETRGBCYC, (const uint8_t *)
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"\x08\x00\x0a\x10\x08\x54\x45\x71\x2c", 9);
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jd9851_cmddata(dev, JD9851_SETTCON, (const uint8_t *)
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"\x00\xa0\x79\x0e\x0a\x16\x79\x0e\x0a\x16\x79\x0e\x0a\x16\
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\x82\x00\x03", 17);
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jd9851_cmddata(dev, JD9851_SETGD, (const uint8_t *)
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"\x04\x0c\x6b\x0f\x07\x03", 6);
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jd9851_cmddata(dev, JD9851_SETRGBIF, (const uint8_t *) "\x22\x20", 2);
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jd9851_cmddata(dev, JD9851_RAM_CTRL, (const uint8_t *) "\x00\x00", 2);
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jd9851_cmddata(dev, JD9851_SET_PAGE_CMD, (const uint8_t *) "\x02", 1);
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jd9851_cmddata(dev, JD9851_DCDC_SET2, (const uint8_t *)
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"\x19\xa0\x2f\x04\x33", 5);
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jd9851_cmddata(dev, JD9851_SETPANEL, (const uint8_t *)
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"\x10\x66\x66\x01", 4);
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jd9851_cmddata(dev, JD9851_OSCM_SET, (const uint8_t *) "\x01\x00\x00", 3);
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jd9851_cmddata(dev, JD9851_SETMIPI_2, (const uint8_t *) "\x10\x20\xf4", 3);
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jd9851_sendcmd(dev, JD9851_SLEEP_OUT);
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up_mdelay(120);
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}
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/****************************************************************************
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* Name: jd9851_sleep
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*
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* Description:
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* Sleep or wake up the driver.
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*
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****************************************************************************/
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static void jd9851_sleep(FAR struct jd9851_dev_s *dev, bool sleep)
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{
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if (sleep)
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{
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jd9851_sendcmd(dev, JD9851_SLEEP_IN);
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}
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else
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{
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jd9851_sendcmd(dev, JD9851_SLEEP_OUT);
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}
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up_mdelay(120);
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}
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/****************************************************************************
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* Name: jd9851_display
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*
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* Description:
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* Turn on or off the display.
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*
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****************************************************************************/
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static void jd9851_display(FAR struct jd9851_dev_s *dev, bool on)
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{
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uint8_t reg;
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#if defined(CONFIG_LCD_JD9851_TE)
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reg = JD9851_TE_MODE0;
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jd9851_cmddata(dev, JD9851_TEON, ®, 1);
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#endif
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#if defined(CONFIG_LCD_JD9851_INVERT)
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jd9851_sendcmd(dev, JD9851_INVERSION_ON);
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#endif
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if (on)
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{
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jd9851_sendcmd(dev, JD9851_DISON);
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}
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else
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{
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jd9851_sendcmd(dev, JD9851_DISOFF);
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}
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}
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/****************************************************************************
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* Name: jd9851_setorientation
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*
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* Description:
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* Set screen orientation.
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*
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****************************************************************************/
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static void jd9851_setorientation(FAR struct jd9851_dev_s *dev)
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{
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uint8_t reg = 0x00;
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#if !defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_JD9851_BGR)
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# if defined(CONFIG_LCD_RLANDSCAPE)
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reg = JD9851_MADCTL_MY | JD9851_MADCTL_MV;
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# elif defined(CONFIG_LCD_LANDSCAPE)
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reg = JD9851_MADCTL_MV | JD9851_MADCTL_MX;
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# elif defined(CONFIG_LCD_RPORTRAIT)
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reg = JD9851_MADCTL_MY | JD9851_MADCTL_MX;
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# endif
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# if defined(CONFIG_LCD_JD9851_BGR)
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reg |= JD9851_MADCTL_BGR;
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|
|
|
# endif
|
|
|
|
#endif
|
|
|
|
jd9851_cmddata(dev, JD9851_MADCTL, ®, 1);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_setcursor
|
|
*
|
|
* Description:
|
|
* Set the rectangular area for an upcoming read or write from RAM.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void jd9851_setcursor(FAR struct jd9851_dev_s *dev,
|
|
uint16_t x0, uint16_t y0,
|
|
uint16_t x1, uint16_t y1)
|
|
{
|
|
/* Set row address */
|
|
|
|
jd9851_sendcmd(dev, JD9851_PASET);
|
|
jd9851_select(dev->spi, 8);
|
|
SPI_SEND(dev->spi, (y0 + JD9851_YOFFSET) >> 8);
|
|
SPI_SEND(dev->spi, (y0 + JD9851_YOFFSET) & 0xff);
|
|
SPI_SEND(dev->spi, (y1 + JD9851_YOFFSET) >> 8);
|
|
SPI_SEND(dev->spi, (y1 + JD9851_YOFFSET) & 0xff);
|
|
jd9851_deselect(dev->spi);
|
|
|
|
/* Set column address */
|
|
|
|
jd9851_sendcmd(dev, JD9851_CASET);
|
|
jd9851_select(dev->spi, 8);
|
|
SPI_SEND(dev->spi, (x0 + JD9851_XOFFSET) >> 8);
|
|
SPI_SEND(dev->spi, (x0 + JD9851_XOFFSET) & 0xff);
|
|
SPI_SEND(dev->spi, (x1 + JD9851_XOFFSET) >> 8);
|
|
SPI_SEND(dev->spi, (x1 + JD9851_XOFFSET) & 0xff);
|
|
jd9851_deselect(dev->spi);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_bpp
|
|
*
|
|
* Description:
|
|
* Set the color depth of the device.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void jd9851_bpp(FAR struct jd9851_dev_s *dev, int bpp)
|
|
{
|
|
uint8_t depth;
|
|
|
|
/* Don't send any command if the depth hasn't changed. */
|
|
|
|
if (dev->bpp != bpp)
|
|
{
|
|
depth = bpp >> 2 | 1;
|
|
depth = (depth & 0x0f) << 4 | depth;
|
|
jd9851_cmddata(dev, JD9851_COLMOD, &depth, 1);
|
|
|
|
/* Cache the new BPP */
|
|
|
|
dev->bpp = bpp;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_wrram
|
|
*
|
|
* Description:
|
|
* Write to the driver's RAM. It is possible to write multiples of size
|
|
* while skipping some values.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void jd9851_wrram(FAR struct jd9851_dev_s *dev,
|
|
FAR const uint8_t *buff, size_t size, size_t skip,
|
|
size_t count)
|
|
{
|
|
size_t i;
|
|
|
|
jd9851_sendcmd(dev, JD9851_RAMWR);
|
|
|
|
jd9851_select(dev->spi, 8);
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
SPI_SNDBLOCK(dev->spi, buff + (i * (size + skip)), size);
|
|
}
|
|
|
|
jd9851_deselect(dev->spi);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_rdram
|
|
*
|
|
* Description:
|
|
* Read from the driver's RAM.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_LCD_NOGETRUN
|
|
static void jd9851_rdram(FAR struct jd9851_dev_s *dev,
|
|
FAR uint16_t *buff, size_t size)
|
|
{
|
|
jd9851_sendcmd(dev, JD9851_RAMRD);
|
|
|
|
jd9851_select(dev->spi, JD9851_BYTESPP * 8);
|
|
SPI_RECVBLOCK(dev->spi, buff, size);
|
|
jd9851_deselect(dev->spi);
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_fill
|
|
*
|
|
* Description:
|
|
* Fill the display with the specified color.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void jd9851_fill(FAR struct jd9851_dev_s *dev, uint16_t color)
|
|
{
|
|
int i;
|
|
|
|
jd9851_setcursor(dev, 0, 0, JD9851_XRES - 1, JD9851_YRES - 1);
|
|
|
|
jd9851_sendcmd(dev, JD9851_RAMWR);
|
|
jd9851_select(dev->spi, JD9851_BYTESPP *8);
|
|
|
|
for (i = 0; i < JD9851_XRES * JD9851_YRES; i++)
|
|
{
|
|
SPI_SEND(dev->spi, color);
|
|
}
|
|
|
|
jd9851_deselect(dev->spi);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_putrun
|
|
*
|
|
* Description:
|
|
* This method can be used to write a partial raster line to the LCD:
|
|
*
|
|
* dev - The lcd device
|
|
* row - Starting row to write to (range: 0 <= row < yres)
|
|
* col - Starting column to write to (range: 0 <= col <= xres-npixels)
|
|
* buffer - The buffer containing the run to be written to the LCD
|
|
* npixels - The number of pixels to write to the LCD
|
|
* (range: 0 < npixels <= xres-col)
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int jd9851_putrun(FAR struct lcd_dev_s *dev,
|
|
fb_coord_t row, fb_coord_t col,
|
|
FAR const uint8_t *buffer, size_t npixels)
|
|
{
|
|
FAR struct jd9851_dev_s *priv = (FAR struct jd9851_dev_s *)dev;
|
|
|
|
ginfo("row: %d col: %d npixels: %d\n", row, col, npixels);
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
|
|
|
|
jd9851_setcursor(priv, col, row, col + npixels - 1, row);
|
|
jd9851_wrram(priv, buffer, npixels * (priv->bpp >> 3), 0, 1);
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_putarea
|
|
*
|
|
* Description:
|
|
* This method can be used to write a partial area to the LCD:
|
|
*
|
|
* dev - The lcd device
|
|
* row_start - Starting row to write to (range: 0 <= row < yres)
|
|
* row_end - Ending row to write to (range: row_start <= row < yres)
|
|
* col_start - Starting column to write to (range: 0 <= col <= xres)
|
|
* col_end - Ending column to write to
|
|
* (range: col_start <= col_end < xres)
|
|
* buffer - The buffer containing the area to be written to the LCD
|
|
* stride - Length of a line in bytes. This parameter may be necessary
|
|
* to allow the LCD driver to calculate the offset for partial
|
|
* writes when the buffer needs to be splited for row-by-row
|
|
* writing.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int jd9851_putarea(FAR struct lcd_dev_s *dev,
|
|
fb_coord_t row_start, fb_coord_t row_end,
|
|
fb_coord_t col_start, fb_coord_t col_end,
|
|
FAR const uint8_t *buffer, fb_coord_t stride)
|
|
{
|
|
FAR struct jd9851_dev_s *priv = (FAR struct jd9851_dev_s *)dev;
|
|
size_t cols = col_end - col_start + 1;
|
|
size_t rows = row_end - row_start + 1;
|
|
size_t row_size = cols * (priv->bpp >> 3);
|
|
|
|
ginfo("row_start: %d row_end: %d col_start: %d col_end: %d\n",
|
|
row_start, row_end, col_start, col_end);
|
|
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
|
|
|
|
jd9851_setcursor(priv, col_start, row_start, col_end, row_end);
|
|
|
|
/* If the stride is the same of the row, a single SPI transfer is enough.
|
|
* That is always true for lcddev. For framebuffer, that indicates a full
|
|
* screen or full row update.
|
|
*/
|
|
|
|
if (stride == row_size)
|
|
{
|
|
/* simpler case, we can just send the whole buffer */
|
|
|
|
ginfo("Using full screen/full row mode\n");
|
|
jd9851_wrram(priv, buffer, rows * row_size, 0, 1);
|
|
}
|
|
else
|
|
{
|
|
/* We have to go row by row */
|
|
|
|
ginfo("Falling-back to row by row mode\n");
|
|
jd9851_wrram(priv, buffer, row_size, stride - row_size, rows);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_getrun
|
|
*
|
|
* Description:
|
|
* This method can be used to read a partial raster line from the LCD:
|
|
*
|
|
* dev - The lcd device
|
|
* row - Starting row to read from (range: 0 <= row < yres)
|
|
* col - Starting column to read read (range: 0 <= col <= xres-npixels)
|
|
* buffer - The buffer in which to return the run read from the LCD
|
|
* npixels - The number of pixels to read from the LCD
|
|
* (range: 0 < npixels <= xres-col)
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_LCD_NOGETRUN
|
|
static int jd9851_getrun(FAR struct lcd_dev_s *dev,
|
|
fb_coord_t row, fb_coord_t col,
|
|
FAR uint8_t *buffer, size_t npixels)
|
|
{
|
|
FAR struct jd9851_dev_s *priv = (FAR struct jd9851_dev_s *)dev;
|
|
FAR uint16_t *dest = (FAR uint16_t *)buffer;
|
|
|
|
ginfo("row: %d col: %d npixels: %d\n", row, col, npixels);
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
|
|
|
|
jd9851_setcursor(priv, col, row, col + npixels - 1, row);
|
|
jd9851_rdram(priv, dest, npixels);
|
|
|
|
return OK;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_getvideoinfo
|
|
*
|
|
* Description:
|
|
* Get information about the LCD video controller configuration.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int jd9851_getvideoinfo(FAR struct lcd_dev_s *dev,
|
|
FAR struct fb_videoinfo_s *vinfo)
|
|
{
|
|
DEBUGASSERT(dev && vinfo);
|
|
lcdinfo("fmt: %d xres: %d yres: %d nplanes: 1\n",
|
|
JD9851_COLORFMT, JD9851_XRES, JD9851_YRES);
|
|
|
|
vinfo->fmt = JD9851_COLORFMT; /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
|
|
vinfo->xres = JD9851_XRES; /* Horizontal resolution in pixel columns */
|
|
vinfo->yres = JD9851_YRES; /* Vertical resolution in pixel rows */
|
|
vinfo->nplanes = 1; /* Number of color planes supported */
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_getplaneinfo
|
|
*
|
|
* Description:
|
|
* Get information about the configuration of each LCD color plane.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int jd9851_getplaneinfo(FAR struct lcd_dev_s *dev,
|
|
unsigned int planeno,
|
|
FAR struct lcd_planeinfo_s *pinfo)
|
|
{
|
|
FAR struct jd9851_dev_s *priv = (FAR struct jd9851_dev_s *)dev;
|
|
|
|
DEBUGASSERT(dev && pinfo && planeno == 0);
|
|
lcdinfo("planeno: %d bpp: %d\n", planeno, JD9851_BPP);
|
|
|
|
pinfo->putrun = jd9851_putrun; /* Put a run into LCD memory */
|
|
pinfo->putarea = jd9851_putarea; /* Put an area into LCD */
|
|
#ifndef CONFIG_LCD_NOGETRUN
|
|
pinfo->getrun = jd9851_getrun; /* Get a run from LCD memory */
|
|
#endif
|
|
pinfo->buffer = (FAR uint8_t *)priv->runbuffer; /* Run scratch buffer */
|
|
pinfo->bpp = priv->bpp; /* Bits-per-pixel */
|
|
pinfo->dev = dev; /* The lcd device */
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_getpower
|
|
****************************************************************************/
|
|
|
|
static int jd9851_getpower(FAR struct lcd_dev_s *dev)
|
|
{
|
|
FAR struct jd9851_dev_s *priv = (FAR struct jd9851_dev_s *)dev;
|
|
|
|
lcdinfo("power: %d\n", priv->power);
|
|
return priv->power;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_setpower
|
|
****************************************************************************/
|
|
|
|
static int jd9851_setpower(FAR struct lcd_dev_s *dev, int power)
|
|
{
|
|
FAR struct jd9851_dev_s *priv = (FAR struct jd9851_dev_s *)dev;
|
|
|
|
lcdinfo("power: %d\n", power);
|
|
DEBUGASSERT((unsigned)power <= CONFIG_LCD_MAXPOWER);
|
|
|
|
/* Set new power level */
|
|
|
|
if (power > 0)
|
|
{
|
|
/* Turn on the display */
|
|
|
|
jd9851_display(priv, true);
|
|
|
|
/* Save the power */
|
|
|
|
priv->power = power;
|
|
}
|
|
else
|
|
{
|
|
/* Turn off the display */
|
|
|
|
jd9851_display(priv, false);
|
|
|
|
/* Save the power */
|
|
|
|
priv->power = 0;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_getcontrast
|
|
*
|
|
* Description:
|
|
* Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST).
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int jd9851_getcontrast(FAR struct lcd_dev_s *dev)
|
|
{
|
|
lcdinfo("Not implemented\n");
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_setcontrast
|
|
*
|
|
* Description:
|
|
* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int jd9851_setcontrast(FAR struct lcd_dev_s *dev,
|
|
unsigned int contrast)
|
|
{
|
|
lcdinfo("contrast: %d\n", contrast);
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: jd9851_initialize
|
|
*
|
|
* Description:
|
|
* Initialize the JD9851 video hardware. The initial state of the
|
|
* LCD is fully initialized, display memory cleared, and the LCD ready
|
|
* to use, but with the power setting at 0 (full off == sleep mode).
|
|
*
|
|
* Returned Value:
|
|
*
|
|
* On success, this function returns a reference to the LCD object for
|
|
* the specified LCD. NULL is returned on any failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR struct lcd_dev_s *jd9851_lcdinitialize(FAR struct spi_dev_s *spi)
|
|
{
|
|
FAR struct jd9851_dev_s *priv = &g_lcddev;
|
|
|
|
/* Initialize the driver data structure */
|
|
|
|
priv->dev.getvideoinfo = jd9851_getvideoinfo;
|
|
priv->dev.getplaneinfo = jd9851_getplaneinfo;
|
|
priv->dev.getpower = jd9851_getpower;
|
|
priv->dev.setpower = jd9851_setpower;
|
|
priv->dev.getcontrast = jd9851_getcontrast;
|
|
priv->dev.setcontrast = jd9851_setcontrast;
|
|
priv->spi = spi;
|
|
|
|
/* Init the hardware and clear the display */
|
|
|
|
jd9851_init(priv);
|
|
jd9851_display(priv, false);
|
|
jd9851_sleep(priv, false);
|
|
jd9851_bpp(priv, JD9851_BPP);
|
|
jd9851_setorientation(priv);
|
|
jd9851_fill(priv, 0x0000);
|
|
jd9851_display(priv, true);
|
|
|
|
return &priv->dev;
|
|
}
|
|
|
|
#endif /* CONFIG_LCD_JD9851 */
|