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- /****************************************************************************
- * drivers/lcd/mio283qt2.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.
- *
- ****************************************************************************/
- /* This is a driver for the MI0283QT-2 LCD from Multi-Inno Technology Co.,
- * Ltd. This LCD is based on the Himax HX8347-D LCD controller.
- *
- * References:
- * 1) LCD Module Specification, Model :
- * MI0283QT-2, Multi-Inno Technology Co., Ltd., Revision 1.0
- * 2) Data Sheet:
- * HX8347-D(T), 240RGB x 320 dot, 262K color, with internal GRAM, TFT
- * Mobile Single Chip Driver Version 02 March, Doc No. HX8347-D(T)-DS,
- * Himax Technologies, Inc., 2009,
- */
- /****************************************************************************
- * 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/mio283qt2.h>
- #ifdef CONFIG_LCD_MIO283QT2
- /****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
- /* Configuration ************************************************************/
- /* 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/Color Properties *************************************************/
- /* Display Resolution */
- #if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
- # define MIO283QT2_XRES 320
- # define MIO283QT2_YRES 240
- #else
- # define MIO283QT2_XRES 240
- # define MIO283QT2_YRES 320
- #endif
- /* Color depth and format */
- #define MIO283QT2_BPP 16
- #define MIO283QT2_COLORFMT FB_FMT_RGB16_565
- /* Hardware LCD/LCD controller definitions **********************************/
- /* In this driver, I chose to use all literal constants for register address
- * and values. Some recent experiences have shown me that during LCD bringup,
- * it is more important to know the binary values rather than nice, people
- * friendly names. Sad, but true.
- */
- #define HIMAX_ID 0x0047
- /* LCD Profiles *************************************************************/
- /* Many details of the controller initialization must, unfortunately, vary
- * from LCD to LCD. I have looked at the spec and at three different drivers
- * for LCDs that have MIO283QT2 controllers.
- * I have tried to summarize these differences as "LCD profiles"
- *
- * Most of the differences between LCDs are nothing more than a few minor bit
- * settings. The most significant difference between LCD drivers in is the
- * manner in which the LCD is powered up and in how the power controls are
- * set.
- * My suggestion is that if you have working LCD initialization code, you
- * should simply replace the code in mio283qt2_hwinitialize with your working
- * code.
- */
- #if defined (CONFIG_MIO283QT2_PROFILE2)
- # undef MIO283QT2_USE_SIMPLE_INIT
- /* PWRCTRL1: AP=smalll-to-medium, DC=Flinex24, BT=+5/-4, DCT=Flinex24 */
- # define PWRCTRL1_SETTING \
- (MIO283QT2_PWRCTRL1_AP_SMMED | MIO283QT2_PWRCTRL1_DC_FLINEx24 | \
- MIO283QT2_PWRCTRL1_BT_p5m4 | MIO283QT2_PWRCTRL1_DCT_FLINEx24)
- /* PWRCTRL2: 5.1v */
- # define PWRCTRL2_SETTING MIO283QT2_PWRCTRL2_VRC_5p1V
- /* PWRCTRL3: x 2.165
- * NOTE:
- * Many drivers have bit 8 set which is not defined in the MIO283QT2 spec.
- */
- # define PWRCTRL3_SETTING MIO283QT2_PWRCTRL3_VRH_x2p165
- /* PWRCTRL4: VDV=9 + VCOMG */
- # define PWRCTRL4_SETTING (MIO283QT2_PWRCTRL4_VDV(9) | MIO283QT2_PWRCTRL4_VCOMG)
- /* PWRCTRL5: VCM=56 + NOTP */
- # define PWRCTRL5_SETTING (MIO283QT2_PWRCTRL5_VCM(56) | MIO283QT2_PWRCTRL5_NOTP)
- #elif defined (CONFIG_MIO283QT2_PROFILE3)
- # undef MIO283QT2_USE_SIMPLE_INIT
- /* PWRCTRL1: AP=smalll-to-medium, DC=Flinex24, BT=+5/-4, DCT=Flinex24 */
- # define PWRCTRL1_SETTING \
- (MIO283QT2_PWRCTRL1_AP_SMMED | MIO283QT2_PWRCTRL1_DC_FLINEx24 | \
- MIO283QT2_PWRCTRL1_BT_p5m4 | MIO283QT2_PWRCTRL1_DCT_FLINEx24)
- /* PWRCTRL2: 5.1v */
- # define PWRCTRL2_SETTING MIO283QT2_PWRCTRL2_VRC_5p1V
- /* PWRCTRL3: x 2.165
- * NOTE:
- * Many drivers have bit 8 set which is not defined in the MIO283QT2 spec.
- */
- # define PWRCTRL3_SETTING MIO283QT2_PWRCTRL3_VRH_x2p165
- /* PWRCTRL4: VDV=9 + VCOMG */
- # define PWRCTRL4_SETTING (MIO283QT2_PWRCTRL4_VDV(9) | MIO283QT2_PWRCTRL4_VCOMG)
- /* PWRCTRL5: VCM=56 + NOTP */
- # define PWRCTRL5_SETTING (MIO283QT2_PWRCTRL5_VCM(56) | MIO283QT2_PWRCTRL5_NOTP)
- #else /* if defined (CONFIG_MIO283QT2_PROFILE1) */
- # undef MIO283QT2_USE_SIMPLE_INIT
- # define MIO283QT2_USE_SIMPLE_INIT 1
- /* PWRCTRL1: AP=medium-to-large, DC=Fosc/4, BT=+5/-4, DCT=Fosc/4 */
- # define PWRCTRL1_SETTING \
- (MIO283QT2_PWRCTRL1_AP_MEDLG | MIO283QT2_PWRCTRL1_DC_FOSd4 | \
- MIO283QT2_PWRCTRL1_BT_p5m4 | MIO283QT2_PWRCTRL1_DCT_FOSd4)
- /* PWRCTRL2: 5.3v */
- # define PWRCTRL2_SETTING MIO283QT2_PWRCTRL2_VRC_5p3V
- /* PWRCTRL3: x 2.570
- * NOTE:
- * Many drivers have bit 8 set which is not defined in the MIO283QT2 spec.
- */
- # define PWRCTRL3_SETTING MIO283QT2_PWRCTRL3_VRH_x2p570
- /* PWRCTRL4: VDV=12 + VCOMG */
- # define PWRCTRL4_SETTING (MIO283QT2_PWRCTRL4_VDV(12) | MIO283QT2_PWRCTRL4_VCOMG)
- /* PWRCTRL5: VCM=60 + NOTP */
- # define PWRCTRL5_SETTING (MIO283QT2_PWRCTRL5_VCM(60) | MIO283QT2_PWRCTRL5_NOTP)
- #endif
- /****************************************************************************
- * Private Type Definition
- ****************************************************************************/
- /* This structure describes the state of this driver */
- struct mio283qt2_dev_s
- {
- /* Publicly visible device structure */
- struct lcd_dev_s dev;
- /* Private LCD-specific information follows */
- FAR struct mio283qt2_lcd_s *lcd; /* The contained platform-specific, LCD interface */
- 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[MIO283QT2_XRES];
- };
- /****************************************************************************
- * Private Function Protototypes
- ****************************************************************************/
- /* Low Level LCD access */
- static void mio283qt2_putreg(FAR struct mio283qt2_lcd_s *lcd,
- uint8_t regaddr,
- uint16_t regval);
- #ifndef CONFIG_LCD_NOGETRUN
- static uint16_t mio283qt2_readreg(FAR struct mio283qt2_lcd_s *lcd,
- uint8_t regaddr);
- #endif
- static inline void mio283qt2_gramwrite(FAR struct mio283qt2_lcd_s *lcd,
- uint16_t rgbcolor);
- #ifndef CONFIG_LCD_NOGETRUN
- static inline void mio283qt2_readsetup(FAR struct mio283qt2_lcd_s *lcd,
- FAR uint16_t *accum);
- static inline uint16_t mio283qt2_gramread(FAR struct mio283qt2_lcd_s *lcd,
- FAR uint16_t *accum);
- #endif
- static void mio283qt2_setarea(FAR struct mio283qt2_lcd_s *lcd,
- uint16_t x0, uint16_t y0,
- uint16_t x1, uint16_t y1);
- /* LCD Data Transfer Methods */
- static int mio283qt2_putrun(fb_coord_t row, fb_coord_t col,
- FAR const uint8_t *buffer,
- size_t npixels);
- static int mio283qt2_getrun(fb_coord_t row, fb_coord_t col,
- FAR uint8_t *buffer,
- size_t npixels);
- /* LCD Configuration */
- static int mio283qt2_getvideoinfo(FAR struct lcd_dev_s *dev,
- FAR struct fb_videoinfo_s *vinfo);
- static int mio283qt2_getplaneinfo(FAR struct lcd_dev_s *dev,
- unsigned int planeno,
- FAR struct lcd_planeinfo_s *pinfo);
- /* LCD RGB Mapping */
- #ifdef CONFIG_FB_CMAP
- # error "RGB color mapping not supported by this driver"
- #endif
- /* Cursor Controls */
- #ifdef CONFIG_FB_HWCURSOR
- # error "Cursor control not supported by this driver"
- #endif
- /* LCD Specific Controls */
- static int mio283qt2_getpower(FAR struct lcd_dev_s *dev);
- static int mio283qt2_setpower(FAR struct lcd_dev_s *dev, int power);
- static int mio283qt2_getcontrast(FAR struct lcd_dev_s *dev);
- static int mio283qt2_setcontrast(FAR struct lcd_dev_s *dev,
- unsigned int contrast);
- /* Initialization */
- static inline int mio283qt2_hwinitialize(FAR struct mio283qt2_dev_s *priv);
- /****************************************************************************
- * Private Data
- ****************************************************************************/
- /* This driver can support only a signal MIO283QT2 device.
- * This is due to an unfortunate decision made whent he getrun and
- * putrun methods were designed.
- * The following is the single MIO283QT2 driver state instance:
- */
- static struct mio283qt2_dev_s g_lcddev;
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: mio283qt2_putreg(lcd,
- *
- * Description:
- * Write to an LCD register
- *
- ****************************************************************************/
- static void mio283qt2_putreg(FAR struct mio283qt2_lcd_s *lcd,
- uint8_t regaddr, uint16_t regval)
- {
- /* Set the index register to the register address and write the register
- * contents
- */
- lcd->index(lcd, regaddr);
- lcd->write(lcd, regval);
- }
- /****************************************************************************
- * Name: mio283qt2_readreg
- *
- * Description:
- * Read from an LCD register
- *
- ****************************************************************************/
- #ifndef CONFIG_LCD_NOGETRUN
- static uint16_t mio283qt2_readreg(FAR struct mio283qt2_lcd_s *lcd,
- uint8_t regaddr)
- {
- /* Set the index register to the register address and read the register
- * contents.
- */
- lcd->index(lcd, regaddr);
- return lcd->read(lcd);
- }
- #endif
- /****************************************************************************
- * Name: mio283qt2_gramselect
- *
- * Description:
- * Setup to read or write multiple pixels to the GRAM memory
- *
- ****************************************************************************/
- static inline void mio283qt2_gramselect(FAR struct mio283qt2_lcd_s *lcd)
- {
- lcd->index(lcd, 0x22);
- }
- /****************************************************************************
- * Name: mio283qt2_gramwrite
- *
- * Description:
- * Setup to read or write multiple pixels to the GRAM memory
- *
- ****************************************************************************/
- static inline void mio283qt2_gramwrite(FAR struct mio283qt2_lcd_s *lcd,
- uint16_t data)
- {
- lcd->write(lcd, data);
- }
- /****************************************************************************
- * Name: mio283qt2_readsetup
- *
- * Description:
- * Prime the operation by reading one pixel from the GRAM memory if
- * necessary for this LCD type. When reading 16-bit gram data, there may
- * be some shifts in the returned data:
- *
- * - ILI932x: Discard first dummy read; no shift in the return data
- *
- ****************************************************************************/
- #ifndef CONFIG_LCD_NOGETRUN
- static inline void mio283qt2_readsetup(FAR struct mio283qt2_lcd_s *lcd,
- FAR uint16_t *accum)
- {
- #if 0 /* Probably not necessary... untested */
- /* Read-ahead one pixel */
- *accum = lcd->read(lcd);
- #endif
- }
- #endif
- /****************************************************************************
- * Name: mio283qt2_gramread
- *
- * Description:
- * Read one correctly aligned pixel from the GRAM memory.
- * Possibly shifting the data and possibly swapping red and green
- * components.
- *
- * - ILI932x: Unknown -- assuming colors are in the color order
- *
- ****************************************************************************/
- #ifndef CONFIG_LCD_NOGETRUN
- static inline uint16_t mio283qt2_gramread(FAR struct mio283qt2_lcd_s *lcd,
- FAR uint16_t *accum)
- {
- /* Read the value (GRAM register already selected) */
- return lcd->read(lcd);
- }
- #endif
- /****************************************************************************
- * Name: mio283qt2_setarea
- *
- * Description:
- * Set the cursor position.
- * In landscape mode, the "column" is actually the physical
- * Y position and the "row" is the physical X position.
- *
- ****************************************************************************/
- static void mio283qt2_setarea(FAR struct mio283qt2_lcd_s *lcd,
- uint16_t x0, uint16_t y0,
- uint16_t x1, uint16_t y1)
- {
- mio283qt2_putreg(lcd, 0x03, (x0 & 0x00ff)); /* set x0 */
- mio283qt2_putreg(lcd, 0x02, (x0 >> 8)); /* set x0 */
- mio283qt2_putreg(lcd, 0x05, (x1 & 0x00ff)); /* set x1 */
- mio283qt2_putreg(lcd, 0x04, (x1 >> 8)); /* set x1 */
- mio283qt2_putreg(lcd, 0x07, (y0 & 0x00ff)); /* set y0 */
- mio283qt2_putreg(lcd, 0x06, (y0 >> 8)); /* set y0 */
- mio283qt2_putreg(lcd, 0x09, (y1 & 0x00ff)); /* set y1 */
- mio283qt2_putreg(lcd, 0x08, (y1 >> 8)); /* set y1 */
- }
- /****************************************************************************
- * Name: mio283qt2_dumprun
- *
- * Description:
- * Dump the contexts of the run buffer:
- *
- * run - The buffer in containing the run read to be dumped
- * npixels - The number of pixels to dump
- *
- ****************************************************************************/
- #if 0 /* Sometimes useful */
- static void mio283qt2_dumprun(FAR const char *msg,
- FAR uint16_t *run,
- size_t npixels)
- {
- int i;
- int j;
- syslog(LOG_INFO, "\n%s:\n", msg);
- for (i = 0; i < npixels; i += 16)
- {
- up_putc(' ');
- syslog(LOG_INFO, " ");
- for (j = 0; j < 16; j++)
- {
- syslog(LOG_INFO, " %04x", *run++);
- }
- up_putc('\n');
- }
- }
- #endif
- /****************************************************************************
- * Name: mio283qt2_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 mio283qt2_putrun(fb_coord_t row, fb_coord_t col,
- FAR const uint8_t *buffer,
- size_t npixels)
- {
- FAR struct mio283qt2_dev_s *priv = &g_lcddev;
- FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
- FAR const uint16_t *src = (FAR const uint16_t *)buffer;
- int i;
- /* Buffer must be provided and aligned to a 16-bit address boundary */
- lcdinfo("row: %d col: %d npixels: %d\n", row, col, npixels);
- DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
- /* Select the LCD */
- lcd->select(lcd);
- /* Write the run to GRAM. */
- mio283qt2_setarea(lcd, col, row, col + npixels - 1, row);
- mio283qt2_gramselect(lcd);
- for (i = 0; i < npixels; i++)
- {
- mio283qt2_gramwrite(lcd, *src);
- src++;
- }
- /* De-select the LCD */
- lcd->deselect(lcd);
- return OK;
- }
- /****************************************************************************
- * Name: mio283qt2_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)
- *
- ****************************************************************************/
- static int mio283qt2_getrun(fb_coord_t row, fb_coord_t col,
- FAR uint8_t *buffer,
- size_t npixels)
- {
- #ifndef CONFIG_LCD_NOGETRUN
- FAR struct mio283qt2_dev_s *priv = &g_lcddev;
- FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
- FAR uint16_t *dest = (FAR uint16_t *)buffer;
- uint16_t accum;
- int i;
- /* Buffer must be provided and aligned to a 16-bit address boundary */
- lcdinfo("row: %d col: %d npixels: %d\n", row, col, npixels);
- DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
- /* Select the LCD */
- lcd->select(lcd);
- /* Read the run from GRAM. */
- /* Select the LCD */
- lcd->select(lcd);
- /* Red the run fram GRAM. */
- mio283qt2_setarea(lcd, col, row, col + npixels - 1, row);
- mio283qt2_gramselect(lcd);
- /* Prime the pump for unaligned read data */
- mio283qt2_readsetup(lcd, &accum);
- for (i = 0; i < npixels; i++)
- {
- *dest++ = mio283qt2_gramread(lcd, &accum);
- }
- /* De-select the LCD */
- lcd->deselect(lcd);
- return OK;
- #else
- return -ENOSYS;
- #endif
- }
- /****************************************************************************
- * Name: mio283qt2_getvideoinfo
- *
- * Description:
- * Get information about the LCD video controller configuration.
- *
- ****************************************************************************/
- static int mio283qt2_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",
- MIO283QT2_COLORFMT, MIO283QT2_XRES, MIO283QT2_XRES);
- vinfo->fmt = MIO283QT2_COLORFMT; /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
- vinfo->xres = MIO283QT2_XRES; /* Horizontal resolution in pixel columns */
- vinfo->yres = MIO283QT2_YRES; /* Vertical resolution in pixel rows */
- vinfo->nplanes = 1; /* Number of color planes supported */
- return OK;
- }
- /****************************************************************************
- * Name: mio283qt2_getplaneinfo
- *
- * Description:
- * Get information about the configuration of each LCD color plane.
- *
- ****************************************************************************/
- static int mio283qt2_getplaneinfo(FAR struct lcd_dev_s *dev,
- unsigned int planeno,
- FAR struct lcd_planeinfo_s *pinfo)
- {
- FAR struct mio283qt2_dev_s *priv = (FAR struct mio283qt2_dev_s *)dev;
- DEBUGASSERT(dev && pinfo && planeno == 0);
- lcdinfo("planeno: %d bpp: %d\n", planeno, MIO283QT2_BPP);
- pinfo->putrun = mio283qt2_putrun; /* Put a run into LCD memory */
- pinfo->getrun = mio283qt2_getrun; /* Get a run from LCD memory */
- pinfo->buffer = (FAR uint8_t *)priv->runbuffer; /* Run scratch buffer */
- pinfo->bpp = MIO283QT2_BPP; /* Bits-per-pixel */
- return OK;
- }
- /****************************************************************************
- * Name: mio283qt2_getpower
- *
- * Description:
- * Get the LCD panel power status
- * (0: full off - CONFIG_LCD_MAXPOWER: full on).
- * On backlit LCDs, this setting may correspond to the backlight setting.
- *
- ****************************************************************************/
- static int mio283qt2_getpower(FAR struct lcd_dev_s *dev)
- {
- lcdinfo("power: %d\n", 0);
- return g_lcddev.power;
- }
- /****************************************************************************
- * Name: mio283qt2_poweroff
- *
- * Description:
- * Enable/disable LCD panel power
- * (0: full off - CONFIG_LCD_MAXPOWER: full on).
- * On backlit LCDs, this setting may correspond to the backlight setting.
- *
- ****************************************************************************/
- static int mio283qt2_poweroff(FAR struct mio283qt2_lcd_s *lcd)
- {
- /* Select the LCD */
- lcd->select(lcd);
- /* Set the backlight off */
- lcd->backlight(lcd, 0);
- /* Turn the display off */
- mio283qt2_putreg(lcd, 0x28, 0x0000); /* GON=0, DTE=0, D=0 */
- /* Deselect the LCD */
- lcd->deselect(lcd);
- /* Remember the power off state */
- g_lcddev.power = 0;
- return OK;
- }
- /****************************************************************************
- * Name: mio283qt2_setpower
- *
- * Description:
- * Enable/disable LCD panel power
- * (0: full off - CONFIG_LCD_MAXPOWER: full on).
- * On backlit LCDs, this setting may correspond to the backlight setting.
- *
- ****************************************************************************/
- static int mio283qt2_setpower(FAR struct lcd_dev_s *dev, int power)
- {
- FAR struct mio283qt2_dev_s *priv = (FAR struct mio283qt2_dev_s *)dev;
- FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
- lcdinfo("power: %d\n", power);
- DEBUGASSERT((unsigned)power <= CONFIG_LCD_MAXPOWER);
- /* Set new power level */
- if (power > 0)
- {
- /* Select the LCD */
- lcd->select(lcd);
- /* Set the backlight level */
- lcd->backlight(lcd, power);
- /* Then turn the display on:
- * D=ON(3) CM=0 DTE=1 GON=1 SPT=0 VLE=0 PT=0
- */
- mio283qt2_putreg(lcd, 0x28, 0x0038); /* GON=1, DTE=1, D=2 */
- up_mdelay(40);
- mio283qt2_putreg(lcd, 0x28, 0x003c); /* GON=1, DTE=1, D=3 */
- /* Deselect the LCD */
- lcd->deselect(lcd);
- /* Remember the power on state */
- g_lcddev.power = power;
- }
- else
- {
- /* Turn the display off */
- mio283qt2_poweroff(lcd);
- }
- return OK;
- }
- /****************************************************************************
- * Name: mio283qt2_getcontrast
- *
- * Description:
- * Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST).
- *
- ****************************************************************************/
- static int mio283qt2_getcontrast(FAR struct lcd_dev_s *dev)
- {
- lcdinfo("Not implemented\n");
- return -ENOSYS;
- }
- /****************************************************************************
- * Name: mio283qt2_setcontrast
- *
- * Description:
- * Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
- *
- ****************************************************************************/
- static int mio283qt2_setcontrast(FAR struct lcd_dev_s *dev,
- unsigned int contrast)
- {
- lcdinfo("contrast: %d\n", contrast);
- return -ENOSYS;
- }
- /****************************************************************************
- * Name: mio283qt2_hwinitialize
- *
- * Description:
- * Initialize the LCD hardware.
- *
- ****************************************************************************/
- static inline int mio283qt2_hwinitialize(FAR struct mio283qt2_dev_s *priv)
- {
- FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
- #ifndef CONFIG_LCD_NOGETRUN
- uint16_t id;
- #endif
- int ret;
- /* Select the LCD */
- lcd->select(lcd);
- /* Read the HIMAX ID registger (0x00) */
- #ifndef CONFIG_LCD_NOGETRUN
- id = mio283qt2_readreg(lcd, 0x00);
- lcdinfo("LCD ID: %04x\n", id);
- /* Check if the ID is for the MIO283QT2 */
- if (id == HIMAX_ID)
- #endif
- {
- /* Driving ability */
- mio283qt2_putreg(lcd, 0xea, 0x0000); /* PTBA[15:8] */
- mio283qt2_putreg(lcd, 0xeb, 0x0020); /* PTBA[7:0] */
- mio283qt2_putreg(lcd, 0xec, 0x000c); /* STBA[15:8] */
- mio283qt2_putreg(lcd, 0xed, 0x00c4); /* STBA[7:0] */
- mio283qt2_putreg(lcd, 0xe8, 0x0040); /* OPON[7:0] */
- mio283qt2_putreg(lcd, 0xe9, 0x0038); /* OPON1[7:0] */
- mio283qt2_putreg(lcd, 0xf1, 0x0001); /* OTPS1B */
- mio283qt2_putreg(lcd, 0xf2, 0x0010); /* GEN */
- mio283qt2_putreg(lcd, 0x27, 0x00a3);
- /* Power voltage */
- mio283qt2_putreg(lcd, 0x1b, 0x001b); /* VRH = 4.65 */
- mio283qt2_putreg(lcd, 0x1a, 0x0001); /* BT */
- mio283qt2_putreg(lcd, 0x24, 0x002f); /* VMH */
- mio283qt2_putreg(lcd, 0x25, 0x0057); /* VML */
- /* Vcom offset */
- mio283qt2_putreg(lcd, 0x23, 0x008d); /* For flicker adjust */
- /* Power on */
- mio283qt2_putreg(lcd, 0x18, 0x0036);
- mio283qt2_putreg(lcd, 0x19, 0x0001); /* Start oscillator */
- mio283qt2_putreg(lcd, 0x01, 0x0000); /* Wakeup */
- mio283qt2_putreg(lcd, 0x1f, 0x0088);
- up_mdelay(5);
- mio283qt2_putreg(lcd, 0x1f, 0x0080);
- up_mdelay(5);
- mio283qt2_putreg(lcd, 0x1f, 0x0090);
- up_mdelay(5);
- mio283qt2_putreg(lcd, 0x1f, 0x00d0);
- up_mdelay(5);
- /* Gamma 2.8 setting */
- mio283qt2_putreg(lcd, 0x40, 0x0000);
- mio283qt2_putreg(lcd, 0x41, 0x0000);
- mio283qt2_putreg(lcd, 0x42, 0x0001);
- mio283qt2_putreg(lcd, 0x43, 0x0013);
- mio283qt2_putreg(lcd, 0x44, 0x0010);
- mio283qt2_putreg(lcd, 0x45, 0x0026);
- mio283qt2_putreg(lcd, 0x46, 0x0008);
- mio283qt2_putreg(lcd, 0x47, 0x0051);
- mio283qt2_putreg(lcd, 0x48, 0x0002);
- mio283qt2_putreg(lcd, 0x49, 0x0012);
- mio283qt2_putreg(lcd, 0x4a, 0x0018);
- mio283qt2_putreg(lcd, 0x4b, 0x0019);
- mio283qt2_putreg(lcd, 0x4c, 0x0014);
- mio283qt2_putreg(lcd, 0x50, 0x0019);
- mio283qt2_putreg(lcd, 0x51, 0x002f);
- mio283qt2_putreg(lcd, 0x52, 0x002c);
- mio283qt2_putreg(lcd, 0x53, 0x003e);
- mio283qt2_putreg(lcd, 0x54, 0x003f);
- mio283qt2_putreg(lcd, 0x55, 0x003f);
- mio283qt2_putreg(lcd, 0x56, 0x002e);
- mio283qt2_putreg(lcd, 0x57, 0x0077);
- mio283qt2_putreg(lcd, 0x58, 0x000b);
- mio283qt2_putreg(lcd, 0x59, 0x0006);
- mio283qt2_putreg(lcd, 0x5a, 0x0007);
- mio283qt2_putreg(lcd, 0x5b, 0x000d);
- mio283qt2_putreg(lcd, 0x5c, 0x001d);
- mio283qt2_putreg(lcd, 0x5d, 0x00cc);
- /* 4K Color Selection */
- mio283qt2_putreg(lcd, 0x17, 0x0003);
- mio283qt2_putreg(lcd, 0x17, 0x0005); /* 0x0005=65k, 0x0006=262k */
- /* Panel characteristics */
- mio283qt2_putreg(lcd, 0x36, 0x0000);
- /* Display Setting */
- mio283qt2_putreg(lcd, 0x01, 0x0000); /* IDMON=0, INVON=0, NORON=0, PTLON=0 */
- #if defined(CONFIG_LCD_LANDSCAPE)
- mio283qt2_putreg(lcd, 0x16, 0x00a8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */
- #elif defined(CONFIG_LCD_PORTRAIT)
- mio283qt2_putreg(lcd, 0x16, 0x0008); /* MY=0, MX=0, MV=0, ML=0, BGR=1 */
- #elif defined(CONFIG_LCD_RLANDSCAPE)
- mio283qt2_putreg(lcd, 0x16, 0x0068); /* MY=0, MX=1, MV=1, ML=0, BGR=1 */
- #elif defined(CONFIG_LCD_RPORTRAIT)
- mio283qt2_putreg(lcd, 0x16, 0x00c8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */
- #endif
- /* Window setting */
- mio283qt2_setarea(lcd, 0, 0, (MIO283QT2_XRES - 1),
- (MIO283QT2_YRES - 1));
- ret = OK;
- }
- #ifndef CONFIG_LCD_NOGETRUN
- else
- {
- lcderr("ERROR: Unsupported LCD type\n");
- ret = -ENODEV;
- }
- #endif
- /* De-select the LCD */
- lcd->deselect(lcd);
- return ret;
- }
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: mio283qt2_lcdinitialize
- *
- * Description:
- * Initialize the LCD 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).
- *
- ****************************************************************************/
- FAR struct lcd_dev_s *mio283qt2_lcdinitialize(
- FAR struct mio283qt2_lcd_s *lcd)
- {
- int ret;
- lcdinfo("Initializing\n");
- /* If we ccould support multiple MIO283QT2 devices, this is where we
- * would allocate a new driver data structure... but we can't.
- * Why not?
- * Because of a bad should the form of the getrun() and putrun methods.
- */
- FAR struct mio283qt2_dev_s *priv = &g_lcddev;
- /* Initialize the driver data structure */
- priv->dev.getvideoinfo = mio283qt2_getvideoinfo;
- priv->dev.getplaneinfo = mio283qt2_getplaneinfo;
- priv->dev.getpower = mio283qt2_getpower;
- priv->dev.setpower = mio283qt2_setpower;
- priv->dev.getcontrast = mio283qt2_getcontrast;
- priv->dev.setcontrast = mio283qt2_setcontrast;
- priv->lcd = lcd;
- /* Configure and enable LCD */
- ret = mio283qt2_hwinitialize(priv);
- if (ret == OK)
- {
- /* Clear the display (setting it to the color 0=black) */
- mio283qt2_clear(&priv->dev, 0);
- /* Turn the display off */
- mio283qt2_poweroff(lcd);
- return &g_lcddev.dev;
- }
- return NULL;
- }
- /****************************************************************************
- * Name: mio283qt2_clear
- *
- * Description:
- * This is a non-standard LCD interface just for the stm3240g-EVAL board.
- * Because of the various rotations, clearing the display in the normal
- * way by writing a sequences of runs that covers the entire display can be
- * very slow. Here the display is cleared by simply setting all GRAM
- * memory to the specified color.
- *
- ****************************************************************************/
- void mio283qt2_clear(FAR struct lcd_dev_s *dev, uint16_t color)
- {
- FAR struct mio283qt2_dev_s *priv = (FAR struct mio283qt2_dev_s *)dev;
- FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
- uint32_t i;
- /* Select the LCD and set the drawring area */
- lcd->select(lcd);
- mio283qt2_setarea(lcd, 0, 0, (MIO283QT2_XRES - 1), (MIO283QT2_YRES - 1));
- /* Prepare to write GRAM data */
- mio283qt2_gramselect(lcd);
- /* Copy color into all of GRAM.
- * Orientation does not matter in this case.
- */
- for (i = 0; i < MIO283QT2_XRES * MIO283QT2_YRES; i++)
- {
- mio283qt2_gramwrite(lcd, color);
- }
- /* De-select the LCD */
- lcd->deselect(lcd);
- }
- #endif /* CONFIG_LCD_MIO283QT2 */
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