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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2021/04/09 22:52:19 UTC
[GitHub] [incubator-nuttx] acassis commented on a change in pull request #3504: Support for ILI9225 controller
acassis commented on a change in pull request #3504:
URL: https://github.com/apache/incubator-nuttx/pull/3504#discussion_r610939563
##########
File path: drivers/lcd/ili9225.c
##########
@@ -0,0 +1,744 @@
+/****************************************************************************
+ * 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 <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
Review comment:
Please remove extra space: "and re-configuring"
##########
File path: drivers/lcd/ili9225.c
##########
@@ -0,0 +1,744 @@
+/****************************************************************************
+ * 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 <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)
Review comment:
Please put FAR aligned under FAR
##########
File path: drivers/lcd/ili9225.c
##########
@@ -0,0 +1,744 @@
+/****************************************************************************
+ * 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 <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)
Review comment:
uint16_t should under right below FAR
##########
File path: drivers/lcd/ili9225.c
##########
@@ -0,0 +1,744 @@
+/****************************************************************************
+ * 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 <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)
Review comment:
ditto
##########
File path: drivers/lcd/ili9225.c
##########
@@ -0,0 +1,744 @@
+/****************************************************************************
+ * 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 <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)
Review comment:
Ditto
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