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- /****************************************************************************
- * drivers/lcd/ili9225.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 <nuttx/config.h>
- #include <sys/types.h>
- #include <stdint.h>
- #include <stdbool.h>
- #include <string.h>
- #include <assert.h>
- #include <errno.h>
- #include <debug.h>
- #include <nuttx/arch.h>
- #include <nuttx/spi/spi.h>
- #include <nuttx/lcd/lcd.h>
- #include <nuttx/lcd/ili9225.h>
- #ifdef CONFIG_LCD_ILI9225
- /****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
- /* Verify that all configuration requirements have been met */
- #ifndef CONFIG_LCD_ILI9225_SPIMODE
- # define CONFIG_LCD_ILI9225_SPIMODE SPIDEV_MODE0
- #endif
- /* SPI frequency */
- #ifndef CONFIG_LCD_ILI9225_FREQUENCY
- # define CONFIG_LCD_ILI9225_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_ILI9225_XRES)
- # define CONFIG_LCD_ILI9225_XRES 176
- #endif
- #if !defined(CONFIG_LCD_ILI9225_YRES)
- # define CONFIG_LCD_ILI9225_YRES 220
- #endif
- #define ILI9225_LUT_SIZE CONFIG_LCD_ILI9225_YRES
- #if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
- # define ILI9225_XRES CONFIG_LCD_ILI9225_YRES
- # define ILI9225_YRES CONFIG_LCD_ILI9225_XRES
- #else
- # define ILI9225_XRES CONFIG_LCD_ILI9225_XRES
- # define ILI9225_YRES CONFIG_LCD_ILI9225_YRES
- #endif
- /* Color depth and format */
- #ifdef CONFIG_LCD_ILI9225_BPP
- # if (CONFIG_LCD_ILI9225_BPP == 16)
- # define ILI9225_BPP 16
- # define ILI9225_COLORFMT FB_FMT_RGB16_565
- # define ILI9225_BYTESPP 2
- # else
- # define ILI9225_BPP 16
- # define ILI9225_COLORFMT FB_FMT_RGB16_565
- # define ILI9225_BYTESPP 2
- # warning "Invalid color depth. Falling back to 16bpp"
- # endif
- #endif
- /****************************************************************************
- * Private Types
- ****************************************************************************/
- /* This structure describes the state of this driver */
- struct ili9225_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[ILI9225_LUT_SIZE];
- };
- /****************************************************************************
- * Private Function Protototypes
- ****************************************************************************/
- /* Misc. Helpers */
- static void ili9225_select(FAR struct spi_dev_s *spi, int bits);
- static void ili9225_deselect(FAR struct spi_dev_s *spi);
- static inline void ili9225_sendcmd(FAR struct ili9225_dev_s *dev,
- uint16_t cmd);
- static inline void ili9225_writereg(FAR struct ili9225_dev_s *dev,
- uint16_t reg, uint16_t data);
- static void ili9225_display(FAR struct ili9225_dev_s *dev, bool on);
- static void ili9225_setarea(FAR struct ili9225_dev_s *dev,
- uint16_t x0, uint16_t y0,
- uint16_t x1, uint16_t y1);
- static void ili9225_bpp(FAR struct ili9225_dev_s *dev, int bpp);
- static void ili9225_wrram(FAR struct ili9225_dev_s *dev,
- FAR const uint16_t *buff, size_t size);
- #ifndef CONFIG_LCD_NOGETRUN
- static void ili9225_rdram(FAR struct ili9225_dev_s *dev,
- FAR uint16_t *buff, size_t size);
- #endif
- static void ili9225_fill(FAR struct ili9225_dev_s *dev, uint16_t color);
- /* LCD Data Transfer Methods */
- static int ili9225_putrun(fb_coord_t row, fb_coord_t col,
- FAR const uint8_t *buffer, size_t npixels);
- #ifndef CONFIG_LCD_NOGETRUN
- static int ili9225_getrun(fb_coord_t row, fb_coord_t col,
- FAR uint8_t *buffer, size_t npixels);
- #endif
- /* LCD Configuration */
- static int ili9225_getvideoinfo(FAR struct lcd_dev_s *dev,
- FAR struct fb_videoinfo_s *vinfo);
- static int ili9225_getplaneinfo(FAR struct lcd_dev_s *dev,
- unsigned int planeno,
- FAR struct lcd_planeinfo_s *pinfo);
- /* LCD Specific Controls */
- static int ili9225_getpower(FAR struct lcd_dev_s *dev);
- static int ili9225_setpower(FAR struct lcd_dev_s *dev, int power);
- /****************************************************************************
- * Private Data
- ****************************************************************************/
- static struct ili9225_dev_s g_lcddev;
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: ili9225_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 ili9225_select(FAR struct spi_dev_s *spi, int bits)
- {
- /* Select ILI9225 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 ILI9225 (it
- * might have gotten configured for a different device while unlocked)
- */
- SPI_SETMODE(spi, CONFIG_LCD_ILI9225_SPIMODE);
- SPI_SETBITS(spi, bits);
- SPI_SETFREQUENCY(spi, CONFIG_LCD_ILI9225_FREQUENCY);
- }
- /****************************************************************************
- * Name: ili9225_deselect
- *
- * Description:
- * De-select the SPI
- *
- * Input Parameters:
- * spi - Reference to the SPI driver structure
- *
- * Returned Value:
- * None
- *
- * Assumptions:
- *
- ****************************************************************************/
- static void ili9225_deselect(FAR struct spi_dev_s *spi)
- {
- /* De-select ILI9225 chip and relinquish the SPI bus. */
- SPI_SELECT(spi, SPIDEV_DISPLAY(0), false);
- SPI_LOCK(spi, false);
- }
- /****************************************************************************
- * Name: ili9225_sendcmd
- *
- * Description:
- * Write data into register.
- *
- ****************************************************************************/
- static inline void ili9225_writereg(FAR struct ili9225_dev_s *dev,
- uint16_t reg, uint16_t data)
- {
- ili9225_select(dev->spi, ILI9225_BYTESPP * 8);
- SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), true);
- SPI_SEND(dev->spi, reg);
- SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), false);
- SPI_SEND(dev->spi, data);
- ili9225_deselect(dev->spi);
- }
- /****************************************************************************
- * Name: ili9225_sendcmd
- *
- * Description:
- * Send a data to the driver.
- *
- ****************************************************************************/
- static inline void ili9225_sendcmd(FAR struct ili9225_dev_s *dev,
- uint16_t cmd)
- {
- ili9225_select(dev->spi, ILI9225_BYTESPP * 8);
- SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), true);
- SPI_SEND(dev->spi, cmd);
- SPI_CMDDATA(dev->spi, SPIDEV_DISPLAY(0), false);
- ili9225_deselect(dev->spi);
- }
- /****************************************************************************
- * Name: ili9225_display
- *
- * Description:
- * Turn on or off the display.
- *
- ****************************************************************************/
- static void ili9225_display(FAR struct ili9225_dev_s *dev, bool on)
- {
- if (!on)
- {
- /* Start turn off sequence */
- ili9225_writereg(dev, ILI9225_DISP_CTRL1, ILI9225_DISP_CTRL1_GON |
- ILI9225_DISP_CTRL1_D(2));
- up_mdelay(20);
- ili9225_writereg(dev, ILI9225_DISP_CTRL1, 0);
- up_mdelay(20);
- ili9225_writereg(dev, ILI9225_POWER_CTRL1, ILI9225_POWER_CTRL1_SAP(0));
- ili9225_writereg(dev, ILI9225_POWER_CTRL2, ~ILI9225_POWER_CTRL2_PON);
- ili9225_writereg(dev, ILI9225_POWER_CTRL5, 0);
- }
- else
- {
- /* Turn on sequence and settings */
- ili9225_writereg(dev, ILI9225_POWER_CTRL2, ILI9225_POWER_CTRL2_VC(8) |
- ILI9225_POWER_CTRL2_VC_EN
- );
- ili9225_writereg(dev, ILI9225_POWER_CTRL3, ILI9225_POWER_CTRL3_DC3(1) |
- ILI9225_POWER_CTRL3_DC2(2) |
- ILI9225_POWER_CTRL3_DC1(1) |
- ILI9225_POWER_CTRL3_BT(6)
- );
- ili9225_writereg(dev, ILI9225_POWER_CTRL4,
- ILI9225_POWER_CTRL4_GVD(111)
- );
- ili9225_writereg(dev, ILI9225_POWER_CTRL5,
- ILI9225_POWER_CTRL5_VML(95) |
- ILI9225_POWER_CTRL5_VCM(9) |
- ILI9225_POWER_CTRL5_VCOMG
- );
- ili9225_writereg(dev, ILI9225_POWER_CTRL1, ILI9225_POWER_CTRL1_SAP(8));
- ili9225_writereg(dev, ILI9225_POWER_CTRL2, ILI9225_POWER_CTRL2_VC(11) |
- ILI9225_POWER_CTRL2_VC_EN |
- ILI9225_POWER_CTRL2_AON |
- ILI9225_POWER_CTRL2_APON
- );
- ili9225_writereg(dev, ILI9225_DRIVER_OUTPUT_CTRL,
- ILI9225_DRIVER_OUTPUT_CTRL_NL(28) |
- ILI9225_DRIVER_OUTPUT_CTRL_SS
- );
- ili9225_writereg(dev, ILI9225_LCD_DRIVING_CTRL,
- ILI9225_LCD_DRIVING_CTRL_INV0);
- ili9225_writereg(dev, ILI9225_ENTRY_MODE, ILI9225_ENTRY_MODE_AM |
- ILI9225_ENTRY_MODE_ID(3) |
- ILI9225_ENTRY_MODE_BGR
- );
- ili9225_writereg(dev, ILI9225_DISP_CTRL2, ILI9225_DISP_CTRL2_BP(8) |
- ILI9225_DISP_CTRL2_FP(8)
- );
- ili9225_writereg(dev, ILI9225_FRAME_CYCLE_CTRL,
- ILI9225_FRAME_CYCLE_CTRL_STD(1) |
- ILI9225_FRAME_CYCLE_CTRL_NO(1)
- );
- ili9225_writereg(dev, ILI9225_RGB_DISP_INT_CTRL1,
- ILI9225_RGB_DISP_INT_CTRL1_RIM(1));
- ili9225_writereg(dev, ILI9225_OSC_CTRL, ILI9225_OSC_CTRL_EN |
- ILI9225_OSC_CTRL_FOSC(13)
- );
- ili9225_writereg(dev, ILI9225_VCI_REC, ILI9225_VCI_REC_VCIR(2));
- ili9225_writereg(dev, ILI9225_VER_SCROLL_CTRL1,
- ILI9225_VER_SCROLL_CTRL1_SEA(219)
- );
- ili9225_writereg(dev, ILI9225_PART_SCR_DRIV_POS1,
- ILI9225_PART_SCR_DRIV_POS1_SE(219)
- );
- ili9225_writereg(dev, ILI9225_HORIZONTAL_ADDR_END,
- ILI9225_HORIZONTAL_ADDR_END_HEA(175)
- );
- ili9225_writereg(dev, ILI9225_VERTICAL_ADDR_END,
- ILI9225_VERTICAL_ADDR_END_VEA(219)
- );
- ili9225_writereg(dev, ILI9225_GAMMA_CTRL2, ILI9225_GAMMA_CTRL2_KP2(8) |
- ILI9225_GAMMA_CTRL2_KP3(8)
- );
- ili9225_writereg(dev, ILI9225_GAMMA_CTRL3,
- ILI9225_GAMMA_CTRL3_KP4(10) |
- ILI9225_GAMMA_CTRL3_KP5(8)
- );
- ili9225_writereg(dev, ILI9225_GAMMA_CTRL4,
- ILI9225_GAMMA_CTRL4_RP0(10)
- );
- ili9225_writereg(dev, ILI9225_GAMMA_CTRL5, ILI9225_GAMMA_CTRL5_KN0(8) |
- ILI9225_GAMMA_CTRL5_KN1(10)
- );
- ili9225_writereg(dev, ILI9225_GAMMA_CTRL6, ILI9225_GAMMA_CTRL6_KN2(8) |
- ILI9225_GAMMA_CTRL6_KN3(8)
- );
- ili9225_writereg(dev, ILI9225_GAMMA_CTRL8,
- ILI9225_GAMMA_CTRL8_RN1(10)
- );
- ili9225_writereg(dev, ILI9225_GAMMA_CTRL9,
- ILI9225_GAMMA_CTRL9_VRP0(16) |
- ILI9225_GAMMA_CTRL9_VRP1(7)
- );
- ili9225_writereg(dev, ILI9225_GAMMA_CTRL10,
- ILI9225_GAMMA_CTRL10_VRN0(10) |
- ILI9225_GAMMA_CTRL10_VRN1(7)
- );
- ili9225_writereg(dev, ILI9225_DISP_CTRL1, ILI9225_DISP_CTRL1_D(2) |
- ILI9225_DISP_CTRL1_GON
- );
- ili9225_writereg(dev, ILI9225_DISP_CTRL1, ILI9225_DISP_CTRL1_D(3) |
- ILI9225_DISP_CTRL1_REV |
- ILI9225_DISP_CTRL1_GON |
- ILI9225_DISP_CTRL1_TEMON
- );
- }
- }
- /****************************************************************************
- * Name: ili9225_setarea
- *
- * Description:
- * Set the rectangular area for an upcoming read or write from RAM.
- *
- ****************************************************************************/
- static void ili9225_setarea(FAR struct ili9225_dev_s *dev,
- uint16_t x0, uint16_t y0,
- uint16_t x1, uint16_t y1)
- {
- /* Set row address */
- ili9225_writereg(dev, ILI9225_HORIZONTAL_ADDR_START,
- ILI9225_HORIZONTAL_ADDR_START_HSA(x0));
- ili9225_writereg(dev, ILI9225_HORIZONTAL_ADDR_END,
- ILI9225_HORIZONTAL_ADDR_END_HEA(x1));
- /* Set column address */
- ili9225_writereg(dev, ILI9225_VERTICAL_ADDR_START,
- ILI9225_VERTICAL_ADDR_START_VSA(y0));
- ili9225_writereg(dev, ILI9225_VERTICAL_ADDR_END,
- ILI9225_VERTICAL_ADDR_END_VEA(y1));
- }
- /****************************************************************************
- * Name: ili9225_bpp
- *
- * Description:
- * Set the color depth of the device.
- *
- ****************************************************************************/
- static void ili9225_bpp(FAR struct ili9225_dev_s *dev, int bpp)
- {
- if (dev->bpp != bpp)
- {
- dev->bpp = bpp;
- }
- }
- /****************************************************************************
- * Name: ili9225_wrram
- *
- * Description:
- * Write to the driver's RAM.
- *
- ****************************************************************************/
- static void ili9225_wrram(FAR struct ili9225_dev_s *dev,
- FAR const uint16_t *buff, size_t size)
- {
- ili9225_sendcmd(dev, ILI9225_GRAM_DATA_REG);
- ili9225_select(dev->spi, ILI9225_BYTESPP * 8);
- SPI_SNDBLOCK(dev->spi, buff, size);
- ili9225_deselect(dev->spi);
- }
- /****************************************************************************
- * Name: ili9225_rdram
- *
- * Description:
- * Read from the driver's RAM.
- *
- ****************************************************************************/
- #ifndef CONFIG_LCD_NOGETRUN
- static void ili9225_rdram(FAR struct ili9225_dev_s *dev,
- FAR uint16_t *buff, size_t size)
- {
- ili9225_sendcmd(dev, ILI9225_GRAM_DATA_REG);
- ili9225_select(dev->spi, ILI9225_BYTESPP * 8);
- SPI_RECVBLOCK(dev->spi, buff, size);
- ili9225_deselect(dev->spi);
- }
- #endif
- /****************************************************************************
- * Name: ili9225_fill
- *
- * Description:
- * Fill the display with the specified color.
- *
- ****************************************************************************/
- static void ili9225_fill(FAR struct ili9225_dev_s *dev, uint16_t color)
- {
- int i;
- ili9225_setarea(dev, 0, 0, ILI9225_XRES - 1, ILI9225_YRES - 1);
- ili9225_sendcmd(dev, ILI9225_GRAM_DATA_REG);
- ili9225_select(dev->spi, ILI9225_BYTESPP * 8);
- for (i = 0; i < ILI9225_XRES * ILI9225_YRES; i++)
- {
- SPI_SEND(dev->spi, color);
- }
- ili9225_deselect(dev->spi);
- }
- /****************************************************************************
- * Name: ili9225_putrun
- *
- * Description:
- * This method can be used to write a partial raster line to the LCD:
- *
- * 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 ili9225_putrun(fb_coord_t row, fb_coord_t col,
- FAR const uint8_t *buffer, size_t npixels)
- {
- FAR struct ili9225_dev_s *priv = &g_lcddev;
- FAR const uint16_t *src = (FAR const uint16_t *)buffer;
- ginfo("row: %d col: %d npixels: %d\n", row, col, npixels);
- DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
- ili9225_setarea(priv, col, row, col + npixels - 1, row);
- ili9225_wrram(priv, src, npixels);
- return OK;
- }
- /****************************************************************************
- * Name: ili9225_getrun
- *
- * Description:
- * This method can be used to read a partial raster line from the LCD:
- *
- * 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 ili9225_getrun(fb_coord_t row, fb_coord_t col,
- FAR uint8_t *buffer, size_t npixels)
- {
- FAR struct ili9225_dev_s *priv = &g_lcddev;
- 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);
- ili9225_setarea(priv, col, row, col + npixels - 1, row);
- ili9225_rdram(priv, dest, npixels);
- return OK;
- }
- #endif
- /****************************************************************************
- * Name: ili9225_getvideoinfo
- *
- * Description:
- * Get information about the LCD video controller configuration.
- *
- ****************************************************************************/
- static int ili9225_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",
- ILI9225_COLORFMT, ILI9225_XRES, ILI9225_YRES);
- vinfo->fmt = ILI9225_COLORFMT; /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
- vinfo->xres = ILI9225_XRES; /* Horizontal resolution in pixel columns */
- vinfo->yres = ILI9225_YRES; /* Vertical resolution in pixel rows */
- vinfo->nplanes = 1; /* Number of color planes supported */
- return OK;
- }
- /****************************************************************************
- * Name: ili9225_getplaneinfo
- *
- * Description:
- * Get information about the configuration of each LCD color plane.
- *
- ****************************************************************************/
- static int ili9225_getplaneinfo(FAR struct lcd_dev_s *dev,
- unsigned int planeno,
- FAR struct lcd_planeinfo_s *pinfo)
- {
- FAR struct ili9225_dev_s *priv = (FAR struct ili9225_dev_s *)dev;
- DEBUGASSERT(dev && pinfo && planeno == 0);
- lcdinfo("planeno: %d bpp: %d\n", planeno, ILI9225_BPP);
- pinfo->putrun = ili9225_putrun; /* Put a run into LCD memory */
- #ifndef CONFIG_LCD_NOGETRUN
- pinfo->getrun = ili9225_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 */
- return OK;
- }
- /****************************************************************************
- * Name: ili9225_getpower
- ****************************************************************************/
- static int ili9225_getpower(FAR struct lcd_dev_s *dev)
- {
- FAR struct ili9225_dev_s *priv = (FAR struct ili9225_dev_s *)dev;
- lcdinfo("power: %d\n", priv->power);
- return priv->power;
- }
- /****************************************************************************
- * Name: ili9225_setpower
- ****************************************************************************/
- static int ili9225_setpower(FAR struct lcd_dev_s *dev, int power)
- {
- FAR struct ili9225_dev_s *priv = (FAR struct ili9225_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 */
- ili9225_display(priv, true);
- /* Save the power */
- priv->power = power;
- }
- else
- {
- /* Turn off the display */
- ili9225_display(priv, false);
- /* Save the power */
- priv->power = 0;
- }
- return OK;
- }
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: ili9225_initialize
- *
- * Description:
- * Initialize the ILI9225 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 *ili9225_lcdinitialize(FAR struct spi_dev_s *spi)
- {
- FAR struct ili9225_dev_s *priv = &g_lcddev;
- /* Initialize the driver data structure */
- priv->dev.getvideoinfo = ili9225_getvideoinfo;
- priv->dev.getplaneinfo = ili9225_getplaneinfo;
- priv->dev.getpower = ili9225_getpower;
- priv->dev.setpower = ili9225_setpower;
- priv->spi = spi;
- /* Init the hardware and clear the display */
- ili9225_display(priv, true);
- ili9225_bpp(priv, ILI9225_BPP);
- /* Set background color */
- ili9225_fill(priv, 0x07ff);
- return &priv->dev;
- }
- #endif /* CONFIG_LCD_ILI9225 */
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