123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931 |
- /****************************************************************************
- * drivers/lcd/mio283qt9a.c
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership. The
- * ASF licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the
- * License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- *
- ****************************************************************************/
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #include <nuttx/config.h>
- #include <sys/types.h>
- #include <stdint.h>
- #include <stdbool.h>
- #include <string.h>
- #include <assert.h>
- #include <errno.h>
- #include <debug.h>
- #include <nuttx/arch.h>
- #include <nuttx/spi/spi.h>
- #include <nuttx/lcd/lcd.h>
- #include <nuttx/lcd/mio283qt9a.h>
- #ifdef CONFIG_LCD_MIO283QT9A
- /****************************************************************************
- * 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 MIO283QT9A_XRES 320
- # define MIO283QT9A_YRES 240
- #else
- # define MIO283QT9A_XRES 240
- # define MIO283QT9A_YRES 320
- #endif
- /* Color depth and format */
- #define MIO283QT9A_BPP 16
- #define MIO283QT9A_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 ILI9341_ID_1 0x93
- #define ILI9341_ID_2 0x41
- /****************************************************************************
- * Private Type Definition
- ****************************************************************************/
- /* This structure describes the state of this driver */
- struct mio283qt9a_dev_s
- {
- /* Publicly visible device structure */
- struct lcd_dev_s dev;
- /* Private LCD-specific information follows */
- FAR struct mio283qt9a_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[MIO283QT9A_XRES];
- };
- /****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
- /* Low Level LCD access */
- static void mio283qt9a_putreg(FAR struct mio283qt9a_lcd_s *lcd,
- uint8_t regaddr,
- uint16_t regval);
- #ifndef CONFIG_LCD_NOGETRUN
- static uint16_t mio283qt9a_readreg(FAR struct mio283qt9a_lcd_s *lcd,
- uint8_t regaddr);
- #endif
- static inline void mio283qt9a_gramwrite(FAR struct mio283qt9a_lcd_s *lcd,
- uint16_t rgbcolor);
- #ifndef CONFIG_LCD_NOGETRUN
- static inline void mio283qt9a_readsetup(FAR struct mio283qt9a_lcd_s *lcd,
- FAR uint16_t *accum);
- static inline uint16_t mio283qt9a_gramread(FAR struct mio283qt9a_lcd_s *lcd,
- FAR uint16_t *accum);
- #endif
- static void mio283qt9a_setarea(FAR struct mio283qt9a_lcd_s *lcd,
- uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1);
- /* LCD Data Transfer Methods */
- static int mio283qt9a_putrun(fb_coord_t row, fb_coord_t col,
- FAR const uint8_t *buffer,
- size_t npixels);
- static int mio283qt9a_getrun(fb_coord_t row, fb_coord_t col,
- FAR uint8_t *buffer,
- size_t npixels);
- /* LCD Configuration */
- static int mio283qt9a_getvideoinfo(FAR struct lcd_dev_s *dev,
- FAR struct fb_videoinfo_s *vinfo);
- static int mio283qt9a_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 mio283qt9a_getpower(FAR struct lcd_dev_s *dev);
- static int mio283qt9a_setpower(FAR struct lcd_dev_s *dev, int power);
- static int mio283qt9a_getcontrast(FAR struct lcd_dev_s *dev);
- static int mio283qt9a_setcontrast(FAR struct lcd_dev_s *dev,
- unsigned int contrast);
- /* Initialization */
- static inline int mio283qt9a_hwinitialize(
- FAR struct mio283qt9a_dev_s *priv);
- /****************************************************************************
- * Private Data
- ****************************************************************************/
- /* This driver can support only a signal MIO283QT9A device.
- * This is due to an unfortunate decision made when the getrun and putrun
- * methods were designed.
- * The following is the single MIO283QT9A driver state instance:
- */
- static struct mio283qt9a_dev_s g_lcddev;
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: mio283qt9a_putreg
- *
- * Description:
- * Write to an LCD register
- *
- ****************************************************************************/
- static void mio283qt9a_putreg(FAR struct mio283qt9a_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: mio283qt9a_readreg
- *
- * Description:
- * Read from an LCD register
- *
- ****************************************************************************/
- #ifndef CONFIG_LCD_NOGETRUN
- static uint16_t mio283qt9a_readreg(FAR struct mio283qt9a_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: mio283qt9a_gramselect_write
- *
- * Description:
- * Setup to write multiple pixels to the GRAM memory
- *
- ****************************************************************************/
- static inline void mio283qt9a_gramselect_write(
- FAR struct mio283qt9a_lcd_s *lcd)
- {
- lcd->index(lcd, 0x2c);
- }
- /****************************************************************************
- * Name: mio283qt9a_gramselect_read
- *
- * Description:
- * Setup to read multiple pixels to the GRAM memory
- *
- ****************************************************************************/
- static inline void mio283qt9a_gramselect_read(
- FAR struct mio283qt9a_lcd_s *lcd)
- {
- lcd->index(lcd, 0x2e);
- lcd->readgram(lcd);
- }
- /****************************************************************************
- * Name: mio283qt9a_gramwrite
- *
- * Description:
- * Setup to read or write multiple pixels to the GRAM memory
- *
- ****************************************************************************/
- static inline void mio283qt9a_gramwrite(
- FAR struct mio283qt9a_lcd_s *lcd, uint16_t data)
- {
- lcd->write(lcd, data);
- }
- /****************************************************************************
- * Name: mio283qt9a_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 mio283qt9a_readsetup(FAR struct mio283qt9a_lcd_s *lcd,
- FAR uint16_t *accum)
- {
- #if 0 /* Probably not necessary... untested */
- /* Read-ahead one pixel */
- *accum = lcd->read(lcd);
- #endif
- }
- #endif
- /****************************************************************************
- * Name: mio283qt9a_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 mio283qt9a_gramread(FAR struct mio283qt9a_lcd_s *lcd,
- FAR uint16_t *accum)
- {
- /* Read the value (GRAM register already selected) */
- return lcd->readgram(lcd);
- }
- #endif
- /****************************************************************************
- * Name: mio283qt9a_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 mio283qt9a_setarea(FAR struct mio283qt9a_lcd_s *lcd,
- uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1)
- {
- mio283qt9a_putreg(lcd, 0x2a, (x0 >> 8)); /* Set column address x0 */
- lcd->write(lcd, (x0 & 0xff)); /* Set x0 */
- lcd->write(lcd, (x1 >> 8)); /* Set x1 */
- lcd->write(lcd, (x1 & 0xff)); /* Set x1 */
- mio283qt9a_putreg(lcd, 0x2b, (y0 >> 8)); /* Set page address y0 */
- lcd->write(lcd, (y0 & 0xff)); /* Set y0 */
- lcd->write(lcd, (y1 >> 8)); /* Set y1 */
- lcd->write(lcd, (y1 & 0xff)); /* Set y1 */
- }
- /****************************************************************************
- * Name: mio283qt9a_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 mio283qt9a_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: mio283qt9a_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 mio283qt9a_putrun(fb_coord_t row, fb_coord_t col,
- FAR const uint8_t *buffer,
- size_t npixels)
- {
- FAR struct mio283qt9a_dev_s *priv = &g_lcddev;
- FAR struct mio283qt9a_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 */
- DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
- /* Select the LCD */
- lcd->select(lcd);
- /* Write the run to GRAM. */
- mio283qt9a_setarea(lcd, col, row, col + npixels - 1, row);
- mio283qt9a_gramselect_write(lcd);
- for (i = 0; i < npixels; i++)
- {
- mio283qt9a_gramwrite(lcd, *src);
- src++;
- }
- /* De-select the LCD */
- lcd->deselect(lcd);
- return OK;
- }
- /****************************************************************************
- * Name: mio283qt9a_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 mio283qt9a_getrun(fb_coord_t row, fb_coord_t col,
- FAR uint8_t *buffer,
- size_t npixels)
- {
- #ifndef CONFIG_LCD_NOGETRUN
- FAR struct mio283qt9a_dev_s *priv = &g_lcddev;
- FAR struct mio283qt9a_lcd_s *lcd = priv->lcd;
- FAR uint16_t *dest = (FAR uint16_t *)buffer;
- uint16_t accum, test;
- int i;
- /* Buffer must be provided and aligned to a 16-bit address boundary */
- lcdinfo("mio283qt9a_getrun row: %d col: %d npixels: %d\n",
- row, col, npixels);
- DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
- /* Read the run from GRAM. */
- /* Select the LCD */
- lcd->select(lcd);
- /* Red the run fram GRAM. */
- mio283qt9a_setarea(lcd, col, row, col + npixels - 1, row);
- mio283qt9a_gramselect_read(lcd);
- /* Prime the pump for unaligned read data */
- mio283qt9a_readsetup(lcd, &accum);
- for (i = 0; i < npixels; i++)
- {
- test = mio283qt9a_gramread(lcd, &accum);
- *dest++ = test;
- }
- /* De-select the LCD */
- lcd->deselect(lcd);
- return OK;
- #else
- return -ENOSYS;
- #endif
- }
- /****************************************************************************
- * Name: mio283qt9a_getvideoinfo
- *
- * Description:
- * Get information about the LCD video controller configuration.
- *
- ****************************************************************************/
- static int mio283qt9a_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",
- MIO283QT9A_COLORFMT, MIO283QT9A_XRES, MIO283QT9A_YRES);
- vinfo->fmt = MIO283QT9A_COLORFMT; /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
- vinfo->xres = MIO283QT9A_XRES; /* Horizontal resolution in pixel columns */
- vinfo->yres = MIO283QT9A_YRES; /* Vertical resolution in pixel rows */
- vinfo->nplanes = 1; /* Number of color planes supported */
- return OK;
- }
- /****************************************************************************
- * Name: mio283qt9a_getplaneinfo
- *
- * Description:
- * Get information about the configuration of each LCD color plane.
- *
- ****************************************************************************/
- static int mio283qt9a_getplaneinfo(FAR struct lcd_dev_s *dev,
- unsigned int planeno,
- FAR struct lcd_planeinfo_s *pinfo)
- {
- FAR struct mio283qt9a_dev_s *priv = (FAR struct mio283qt9a_dev_s *)dev;
- DEBUGASSERT(dev && pinfo && planeno == 0);
- lcdinfo("planeno: %d bpp: %d\n", planeno, MIO283QT9A_BPP);
- pinfo->putrun = mio283qt9a_putrun; /* Put a run into LCD memory */
- pinfo->getrun = mio283qt9a_getrun; /* Get a run from LCD memory */
- pinfo->buffer = (FAR uint8_t *)priv->runbuffer; /* Run scratch buffer */
- pinfo->bpp = MIO283QT9A_BPP; /* Bits-per-pixel */
- return OK;
- }
- /****************************************************************************
- * Name: mio283qt9a_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 mio283qt9a_getpower(FAR struct lcd_dev_s *dev)
- {
- lcdinfo("getpower: %d\n", 0);
- return g_lcddev.power;
- }
- /****************************************************************************
- * Name: mio283qt9a_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 mio283qt9a_poweroff(FAR struct mio283qt9a_lcd_s *lcd)
- {
- /* Select the LCD */
- lcdinfo("mio283qt9a_poweroff\n");
- lcd->select(lcd);
- /* Set the backlight off */
- lcd->backlight(lcd, 0);
- /* Turn the display off */
- mio283qt9a_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: mio283qt9a_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 mio283qt9a_setpower(FAR struct lcd_dev_s *dev, int power)
- {
- FAR struct mio283qt9a_dev_s *priv = (FAR struct mio283qt9a_dev_s *)dev;
- FAR struct mio283qt9a_lcd_s *lcd = priv->lcd;
- lcdinfo("setpower: %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: */
- mio283qt9a_putreg(lcd, 0x29, 0x00); /* GON=1, DTE=1, D=2 */
- /* Deselect the LCD */
- lcd->deselect(lcd);
- /* Remember the power on state */
- g_lcddev.power = power;
- }
- else
- {
- /* Turn the display off */
- mio283qt9a_poweroff(lcd);
- }
- return OK;
- }
- /****************************************************************************
- * Name: mio283qt9a_getcontrast
- *
- * Description:
- * Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST).
- *
- ****************************************************************************/
- static int mio283qt9a_getcontrast(FAR struct lcd_dev_s *dev)
- {
- lcdinfo("Not implemented\n");
- return -ENOSYS;
- }
- /****************************************************************************
- * Name: mio283qt9a_setcontrast
- *
- * Description:
- * Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
- *
- ****************************************************************************/
- static int mio283qt9a_setcontrast(FAR struct lcd_dev_s *dev,
- unsigned int contrast)
- {
- lcdinfo("contrast: %d\n", contrast);
- return -ENOSYS;
- }
- /****************************************************************************
- * Name: mio283qt9a_hwinitialize
- *
- * Description:
- * Initialize the LCD hardware.
- *
- ****************************************************************************/
- static inline int mio283qt9a_hwinitialize(FAR struct mio283qt9a_dev_s *priv)
- {
- FAR struct mio283qt9a_lcd_s *lcd = priv->lcd;
- #if !defined(CONFIG_LCD_NOGETRUN) || defined(CONFIG_DEBUG_LCD)
- uint16_t id_a;
- uint16_t id_b;
- uint16_t id_c;
- uint16_t id_d;
- #endif
- #ifdef CONFIG_DEBUG_LCD
- uint16_t id_e;
- #endif
- int ret;
- /* Select the LCD */
- lcd->select(lcd);
- /* Read the HIMAX ID registger (0x00) */
- #ifndef CONFIG_LCD_NOGETRUN
- id_a = mio283qt9a_readreg(lcd, 0xd3);
- id_b = lcd->read(lcd);
- id_c = lcd->read(lcd);
- id_d = lcd->read(lcd);
- lcdinfo("LCD ID: %04x %04x %04x %04x\n", id_a, id_b, id_c, id_d);
- UNUSED(id_a);
- UNUSED(id_b);
- /* Check if the ID is for the ILI9341 */
- if (id_c == ILI9341_ID_1 && id_d == ILI9341_ID_2)
- #endif
- {
- mio283qt9a_putreg(lcd, 0x29, 0); /* Power on */
- mio283qt9a_putreg(lcd, 0x13, 0); /* Normal display on */
- mio283qt9a_putreg(lcd, 0xc0, 0x28); /* Power control C1 */
- mio283qt9a_putreg(lcd, 0xc1, 0x01); /* Power control C2 BT = 1 */
- mio283qt9a_putreg(lcd, 0xc5, 0x24); /* VCOM control, VMH = 3.6v */
- lcd->write(lcd, 0x25); /* VML = -1.575v */
- mio283qt9a_putreg(lcd, 0x26, 0x01); /* Gamma 2.2 */
- mio283qt9a_putreg(lcd, 0x3a, 0x55); /* Pixel format set command */
- #if defined(CONFIG_LCD_LANDSCAPE)
- mio283qt9a_putreg(lcd, 0x36, 0x0028); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */
- #elif defined(CONFIG_LCD_PORTRAIT)
- mio283qt9a_putreg(lcd, 0x36, 0x0008); /* MY=0, MX=0, MV=0, ML=0, BGR=1 */
- #elif defined(CONFIG_LCD_RLANDSCAPE)
- mio283qt9a_putreg(lcd, 0x36, 0x0068); /* MY=0, MX=1, MV=1, ML=0, BGR=1 */
- #elif defined(CONFIG_LCD_RPORTRAIT)
- mio283qt9a_putreg(lcd, 0x36, 0x00c8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */
- #endif
- /* Window setting */
- mio283qt9a_setarea(lcd, 0, 0, (MIO283QT9A_XRES - 1),
- (MIO283QT9A_YRES - 1));
- mio283qt9a_putreg(lcd, 0x11, 0); /* Sleep out mode */
- up_mdelay(25);
- #ifdef CONFIG_DEBUG_LCD
- /* Read back some info from the panel */
- id_a = mio283qt9a_readreg(lcd, 0x04); /* Read display information */
- id_b = lcd->read(lcd);
- id_c = lcd->read(lcd);
- id_d = lcd->read(lcd);
- lcdinfo("LCD man ID: %02x, version: %02x, driver ID: %02x\n",
- id_b, id_c, id_d);
- id_a = mio283qt9a_readreg(lcd, 0x09); /* Read display status */
- id_b = lcd->read(lcd);
- id_c = lcd->read(lcd);
- id_d = lcd->read(lcd);
- id_e = lcd->read(lcd);
- lcdinfo("Display status %02x, %02x, %02x, %02x, %02x\n",
- id_a, id_b, id_c, id_d, id_e);
- id_a = mio283qt9a_readreg(lcd, 0x0a); /* Read power status */
- id_b = lcd->read(lcd);
- lcdinfo("Power status %02x, %02x\n", id_a, id_b);
- id_a = mio283qt9a_readreg(lcd, 0x0b); /* Read MADCTL */
- id_b = lcd->read(lcd);
- lcdinfo("MADCTL %02x, %02x\n", id_a, id_b);
- id_a = mio283qt9a_readreg(lcd, 0x0c); /* Read pixel format */
- id_b = lcd->read(lcd);
- lcdinfo("Pixel format %02x, %02x\n", id_a, id_b);
- id_a = mio283qt9a_readreg(lcd, 0x0d); /* Read image format */
- id_b = lcd->read(lcd);
- lcdinfo("Image format %02x, %02x\n", id_a, id_b);
- id_a = mio283qt9a_readreg(lcd, 0x0e); /* read signal mode */
- id_b = lcd->read(lcd);
- lcdinfo("Signal mode %02x, %02x\n", id_a, id_b);
- id_a = mio283qt9a_readreg(lcd, 0x0f); /* read self diag */
- id_b = lcd->read(lcd);
- lcdinfo("Self diag %02x, %02x\n", id_a, id_b);
- #endif
- 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: mio283qt9a_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 *mio283qt9a_lcdinitialize(
- FAR struct mio283qt9a_lcd_s *lcd)
- {
- FAR struct mio283qt9a_dev_s *priv;
- int ret;
- lcdinfo("Initializing\n");
- /* If we could support multiple MIO283QT9A 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.
- */
- priv = &g_lcddev;
- /* Initialize the driver data structure */
- priv->dev.getvideoinfo = mio283qt9a_getvideoinfo;
- priv->dev.getplaneinfo = mio283qt9a_getplaneinfo;
- priv->dev.getpower = mio283qt9a_getpower;
- priv->dev.setpower = mio283qt9a_setpower;
- priv->dev.getcontrast = mio283qt9a_getcontrast;
- priv->dev.setcontrast = mio283qt9a_setcontrast;
- priv->lcd = lcd;
- /* Configure and enable LCD */
- ret = mio283qt9a_hwinitialize(priv);
- if (ret == OK)
- {
- /* Clear the display (setting it to the color 0=black) */
- mio283qt9a_clear(&priv->dev, 0x0000);
- /* Turn the display off */
- mio283qt9a_poweroff(lcd);
- return &g_lcddev.dev;
- }
- return NULL;
- }
- /****************************************************************************
- * Name: mio283qt9a_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 mio283qt9a_clear(FAR struct lcd_dev_s *dev, uint16_t color)
- {
- FAR struct mio283qt9a_dev_s *priv = (FAR struct mio283qt9a_dev_s *)dev;
- FAR struct mio283qt9a_lcd_s *lcd = priv->lcd;
- uint32_t i;
- /* Select the LCD and set the drawring area */
- lcd->select(lcd);
- mio283qt9a_setarea(lcd, 0, 0, (MIO283QT9A_XRES - 1),
- (MIO283QT9A_YRES - 1));
- /* Prepare to write GRAM data */
- mio283qt9a_gramselect_write(lcd);
- /* Copy color into all of GRAM.
- * Orientation does not matter in this case.
- */
- for (i = 0; i < MIO283QT9A_XRES * MIO283QT9A_YRES; i++)
- {
- mio283qt9a_gramwrite(lcd, color);
- }
- /* De-select the LCD */
- lcd->deselect(lcd);
- }
- #endif /* CONFIG_LCD_MIO283QT9A */
|