/**************************************************************************** * drivers/lcd/jd9851.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include "jd9851.h" #ifdef CONFIG_LCD_JD9851 /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Verify that all configuration requirements have been met */ #ifndef CONFIG_LCD_JD9851_SPIMODE # define CONFIG_LCD_JD9851_SPIMODE SPIDEV_MODE0 #endif /* SPI frequency */ #ifndef CONFIG_LCD_JD9851_FREQUENCY # define CONFIG_LCD_JD9851_FREQUENCY 1000000 #endif /* Check contrast selection */ #if !defined(CONFIG_LCD_MAXCONTRAST) # define CONFIG_LCD_MAXCONTRAST 1 #endif /* Check power setting */ #if !defined(CONFIG_LCD_MAXPOWER) || CONFIG_LCD_MAXPOWER < 1 # define CONFIG_LCD_MAXPOWER 1 #endif #if CONFIG_LCD_MAXPOWER > 255 # error "CONFIG_LCD_MAXPOWER must be less than 256 to fit in uint8_t" #endif /* Check orientation */ #if defined(CONFIG_LCD_PORTRAIT) # if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) ||\ defined(CONFIG_LCD_RPORTRAIT) # error "Cannot define both portrait and any other orientations" # endif #elif defined(CONFIG_LCD_RPORTRAIT) # if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) # error "Cannot define both rportrait and any other orientations" # endif #elif defined(CONFIG_LCD_LANDSCAPE) # ifdef CONFIG_LCD_RLANDSCAPE # error "Cannot define both landscape and any other orientations" # endif #elif !defined(CONFIG_LCD_RLANDSCAPE) # define CONFIG_LCD_LANDSCAPE 1 #endif /* Display Resolution */ #if !defined(CONFIG_LCD_JD9851_XRES) # define CONFIG_LCD_JD9851_XRES 240 #endif #if !defined(CONFIG_LCD_JD9851_YRES) # define CONFIG_LCD_JD9851_YRES 320 #endif #if !defined(CONFIG_LCD_JD9851_BPP) # define CONFIG_LCD_JD9851_BPP 16 #endif #if !defined(CONFIG_LCD_JD9851_XOFFSET) # define CONFIG_LCD_JD9851_XOFFSET 0 #endif #if !defined(CONFIG_LCD_JD9851_YOFFSET) # define CONFIG_LCD_JD9851_YOFFSET 0 #endif #define JD9851_LUT_SIZE CONFIG_LCD_JD9851_YRES #if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) # define JD9851_XRES CONFIG_LCD_JD9851_YRES # define JD9851_YRES CONFIG_LCD_JD9851_XRES # define JD9851_XOFFSET CONFIG_LCD_JD9851_YOFFSET # define JD9851_YOFFSET CONFIG_LCD_JD9851_XOFFSET #else # define JD9851_XRES CONFIG_LCD_JD9851_XRES # define JD9851_YRES CONFIG_LCD_JD9851_YRES # define JD9851_XOFFSET CONFIG_LCD_JD9851_XOFFSET # define JD9851_YOFFSET CONFIG_LCD_JD9851_YOFFSET #endif /* Color depth and format */ #ifdef CONFIG_LCD_JD9851_BPP # if (CONFIG_LCD_JD9851_BPP == 16) # define JD9851_BPP 16 # define JD9851_COLORFMT FB_FMT_RGB16_565 # define JD9851_BYTESPP 2 # else # define JD9851_BPP 16 # define JD9851_COLORFMT FB_FMT_RGB16_565 # define JD9851_BYTESPP 2 # warning "Invalid color depth. Falling back to 16bpp" # endif #endif /**************************************************************************** * Private Types ****************************************************************************/ /* This structure describes the state of this driver */ struct jd9851_dev_s { /* Publicly visible device structure */ struct lcd_dev_s dev; /* Private LCD-specific information follows */ FAR struct spi_dev_s *spi; /* SPI device */ uint8_t bpp; /* Selected color depth */ uint8_t power; /* Current power setting */ /* This is working memory allocated by the LCD driver for each LCD device * and for each color plane. This memory will hold one raster line of data. * The size of the allocated run buffer must therefore be at least * (bpp * xres / 8). Actual alignment of the buffer must conform to the * bitwidth of the underlying pixel type. * * If there are multiple planes, they may share the same working buffer * because different planes will not be operate on concurrently. However, * if there are multiple LCD devices, they must each have unique run * buffers. */ uint16_t runbuffer[JD9851_LUT_SIZE]; }; /**************************************************************************** * Private Function Protototypes ****************************************************************************/ /* Misc. Helpers */ static void jd9851_select(FAR struct spi_dev_s *spi, int bits); static void jd9851_deselect(FAR struct spi_dev_s *spi); static inline void jd9851_sendcmd(FAR struct jd9851_dev_s *dev, uint8_t cmd); static void jd9851_cmddata(FAR struct jd9851_dev_s *dev, uint8_t cmd, const uint8_t *data, int len); static void jd9851_init(FAR struct jd9851_dev_s *dev); static void jd9851_sleep(FAR struct jd9851_dev_s *dev, bool sleep); static void jd9851_setorientation(FAR struct jd9851_dev_s *dev); static void jd9851_display(FAR struct jd9851_dev_s *dev, bool on); static void jd9851_setcursor(FAR struct jd9851_dev_s *dev, uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1); static void jd9851_bpp(FAR struct jd9851_dev_s *dev, int bpp); static void jd9851_wrram(FAR struct jd9851_dev_s *dev, FAR const uint8_t *buff, size_t size , size_t skip, size_t count); #ifndef CONFIG_LCD_NOGETRUN static void jd9851_rdram(FAR struct jd9851_dev_s *dev, FAR uint16_t *buff, size_t size); #endif static void jd9851_fill(FAR struct jd9851_dev_s *dev, uint16_t color); /* LCD Data Transfer Methods */ 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); 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); #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); #endif /* LCD Configuration */ static int jd9851_getvideoinfo(FAR struct lcd_dev_s *dev, FAR struct fb_videoinfo_s *vinfo); static int jd9851_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, FAR struct lcd_planeinfo_s *pinfo); /* LCD Specific Controls */ static int jd9851_getpower(FAR struct lcd_dev_s *dev); static int jd9851_setpower(FAR struct lcd_dev_s *dev, int power); static int jd9851_getcontrast(FAR struct lcd_dev_s *dev); static int jd9851_setcontrast(FAR struct lcd_dev_s *dev, unsigned int contrast); /**************************************************************************** * Private Data ****************************************************************************/ static struct jd9851_dev_s g_lcddev; /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: jd9851_select * * Description: * Select the SPI, locking and re-configuring if necessary * * Input Parameters: * spi - Reference to the SPI driver structure * bits - Number of SPI bits * * Returned Value: * None * * Assumptions: * ****************************************************************************/ static void jd9851_select(FAR struct spi_dev_s *spi, int bits) { /* Select JD9851 chip (locking the SPI bus in case there are multiple * devices competing for the SPI bus */ SPI_LOCK(spi, true); SPI_SELECT(spi, SPIDEV_DISPLAY(0), true); /* Now make sure that the SPI bus is configured for the JD9851 (it * might have gotten configured for a different device while unlocked) */ SPI_SETMODE(spi, CONFIG_LCD_JD9851_SPIMODE); SPI_SETBITS(spi, bits); SPI_SETFREQUENCY(spi, CONFIG_LCD_JD9851_FREQUENCY); } /**************************************************************************** * Name: jd9851_deselect * * Description: * De-select the SPI * * Input Parameters: * spi - Reference to the SPI driver structure * * Returned Value: * None * * Assumptions: * ****************************************************************************/ static void jd9851_deselect(FAR struct spi_dev_s *spi) { /* De-select JD9851 chip and relinquish the SPI bus. */ SPI_SELECT(spi, SPIDEV_DISPLAY(0), false); SPI_LOCK(spi, false); } /**************************************************************************** * Name: jd9851_sendcmd * * Description: * Send a command to the driver. * ****************************************************************************/ static inline void jd9851_sendcmd(FAR struct jd9851_dev_s *dev, uint8_t cmd) { jd9851_select(dev->spi, 8); SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), true); SPI_SEND(dev->spi, cmd); SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), false); jd9851_deselect(dev->spi); } /**************************************************************************** * Name: jd9851_cmddata * * Description: * Send a command and a series of data to the driver. * ****************************************************************************/ static void jd9851_cmddata(FAR struct jd9851_dev_s *dev, uint8_t cmd, const uint8_t *data, int len) { jd9851_select(dev->spi, 8); SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), true); SPI_SEND(dev->spi, cmd); SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), false); SPI_SNDBLOCK(dev->spi, data, len); jd9851_deselect(dev->spi); } /**************************************************************************** * Name: jd9851_init * * Description: * Send jd9851 internal init commands. * * Assumption/Limitations: * Initialization is hardware-specific and may need to be rewritten for * different modules. * ****************************************************************************/ static void jd9851_init(FAR struct jd9851_dev_s *dev) { jd9851_cmddata(dev, JD9851_PASSWORD, (const uint8_t *) "\x98\x51\xe9", 3); jd9851_cmddata(dev, JD9851_SET_PAGE_CMD, (const uint8_t *) "\x00", 1); jd9851_cmddata(dev, JD9851_GAMMA_SET_CMD, (const uint8_t *) "\x1b\x7a\x17\x32", 4); jd9851_cmddata(dev, JD9851_R_GAMMA_SET_CMD, (const uint8_t *) "\x3c\x32\x2b\x2c\x2f\x32\x2c\x2b\x28\x27\x22\x16\x10\x0b\ \x05\x0e\x3c\x32\x2b\x2c\x2f\x32\x2c\x2b\x28\x27\x22\x16\ \x10\x0b\x05\x0e", 32); jd9851_cmddata(dev, JD9851_POWER_CTRL, (const uint8_t *) "\x33\x28\xcc", 3); jd9851_cmddata(dev, JD9851_DCDC_SET, (const uint8_t *) "\x47\x7a\x30\x30\x6c\x60\x50\x70", 8); jd9851_cmddata(dev, JD9851_VDDD_CTRL, (const uint8_t *) "\x38\x3c", 2); jd9851_cmddata(dev, JD9851_SETSTBA, (const uint8_t *) "\x31\x20", 2); jd9851_cmddata(dev, JD9851_SETPANEL, (const uint8_t *) "\x16", 1); jd9851_cmddata(dev, JD9851_SETRGBCYC, (const uint8_t *) "\x08\x00\x0a\x10\x08\x54\x45\x71\x2c", 9); jd9851_cmddata(dev, JD9851_SETTCON, (const uint8_t *) "\x00\xa0\x79\x0e\x0a\x16\x79\x0e\x0a\x16\x79\x0e\x0a\x16\ \x82\x00\x03", 17); jd9851_cmddata(dev, JD9851_SETGD, (const uint8_t *) "\x04\x0c\x6b\x0f\x07\x03", 6); jd9851_cmddata(dev, JD9851_SETRGBIF, (const uint8_t *) "\x22\x20", 2); jd9851_cmddata(dev, JD9851_RAM_CTRL, (const uint8_t *) "\x00\x00", 2); jd9851_cmddata(dev, JD9851_SET_PAGE_CMD, (const uint8_t *) "\x02", 1); jd9851_cmddata(dev, JD9851_DCDC_SET2, (const uint8_t *) "\x19\xa0\x2f\x04\x33", 5); jd9851_cmddata(dev, JD9851_SETPANEL, (const uint8_t *) "\x10\x66\x66\x01", 4); jd9851_cmddata(dev, JD9851_OSCM_SET, (const uint8_t *) "\x01\x00\x00", 3); jd9851_cmddata(dev, JD9851_SETMIPI_2, (const uint8_t *) "\x10\x20\xf4", 3); jd9851_sendcmd(dev, JD9851_SLEEP_OUT); up_mdelay(120); } /**************************************************************************** * Name: jd9851_sleep * * Description: * Sleep or wake up the driver. * ****************************************************************************/ static void jd9851_sleep(FAR struct jd9851_dev_s *dev, bool sleep) { if (sleep) { jd9851_sendcmd(dev, JD9851_SLEEP_IN); } else { jd9851_sendcmd(dev, JD9851_SLEEP_OUT); } up_mdelay(120); } /**************************************************************************** * Name: jd9851_display * * Description: * Turn on or off the display. * ****************************************************************************/ static void jd9851_display(FAR struct jd9851_dev_s *dev, bool on) { uint8_t reg; #if defined(CONFIG_LCD_JD9851_TE) reg = JD9851_TE_MODE0; jd9851_cmddata(dev, JD9851_TEON, ®, 1); #endif #if defined(CONFIG_LCD_JD9851_INVERT) jd9851_sendcmd(dev, JD9851_INVERSION_ON); #endif if (on) { jd9851_sendcmd(dev, JD9851_DISON); } else { jd9851_sendcmd(dev, JD9851_DISOFF); } } /**************************************************************************** * Name: jd9851_setorientation * * Description: * Set screen orientation. * ****************************************************************************/ static void jd9851_setorientation(FAR struct jd9851_dev_s *dev) { uint8_t reg = 0x00; #if !defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_JD9851_BGR) # if defined(CONFIG_LCD_RLANDSCAPE) reg = JD9851_MADCTL_MY | JD9851_MADCTL_MV; # elif defined(CONFIG_LCD_LANDSCAPE) reg = JD9851_MADCTL_MV | JD9851_MADCTL_MX; # elif defined(CONFIG_LCD_RPORTRAIT) reg = JD9851_MADCTL_MY | JD9851_MADCTL_MX; # endif # if defined(CONFIG_LCD_JD9851_BGR) reg |= JD9851_MADCTL_BGR; # 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 */