diff options
Diffstat (limited to 'nuttx/drivers/lcd/mio283qt2.c')
-rw-r--r-- | nuttx/drivers/lcd/mio283qt2.c | 1014 |
1 files changed, 1014 insertions, 0 deletions
diff --git a/nuttx/drivers/lcd/mio283qt2.c b/nuttx/drivers/lcd/mio283qt2.c new file mode 100644 index 000000000..1758e230c --- /dev/null +++ b/nuttx/drivers/lcd/mio283qt2.c @@ -0,0 +1,1014 @@ +/************************************************************************************** + * drivers/lcd/mio283qt2.c + * + * 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. + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Authors: Gregory Nutt <gnutt@nuttx.org> + * + * 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, + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + **************************************************************************************/ + +/************************************************************************************** + * 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.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 + +/* Define CONFIG_DEBUG_LCD to enable detailed LCD debug output. Verbose debug must + * also be enabled. + */ + +#ifndef CONFIG_DEBUG +# undef CONFIG_DEBUG_VERBOSE +# undef CONFIG_DEBUG_GRAPHICS +# undef CONFIG_DEBUG_LCD +#endif + +#ifndef CONFIG_DEBUG_VERBOSE +# undef CONFIG_DEBUG_LCD +#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 betwen 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 + +/* Debug ******************************************************************************/ + +#ifdef CONFIG_DEBUG_LCD +# define lcddbg dbg +# define lcdvdbg vdbg +#else +# define lcddbg(x...) +# define lcdvdbg(x...) +#endif + +/************************************************************************************** + * Private Type Definition + **************************************************************************************/ + +/* This structure describes the state of this driver */ + +struct mio283qt2_dev_s +{ + /* Publically 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, j; + + lib_rawprintf("\n%s:\n", msg); + for (i = 0; i < npixels; i += 16) + { + up_putc(' '); + lib_rawprintf(" "); + for (j = 0; j < 16; j++) + { + lib_rawprintf(" %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 */ + + lcdvdbg("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 */ + + lcdvdbg("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); + lcdvdbg("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); + lcdvdbg("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 = (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) +{ + lcdvdbg("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) +{ + /* Set the backlight off */ + + lcd->backlight(lcd, 0); + + /* Turn the display off */ + + mio283qt2_putreg(lcd, 0x28, 0x0000); /* GON=0, DTE=0, D=0 */ + + /* 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; + + lcdvdbg("power: %d\n", power); + DEBUGASSERT((unsigned)power <= CONFIG_LCD_MAXPOWER); + + /* Set new power level */ + + if (power > 0) + { + /* 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 + */ + + /* Display on */ + + 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 */ + + 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) +{ + lcdvdbg("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) +{ + lcdvdbg("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 + + /* Select the LCD */ + + lcd->select(lcd); + + /* Read the HIMAX ID registger (0x00) */ + +#ifndef CONFIG_LCD_NOGETRUN + id = mio283qt2_readreg(lcd, 0x00); + lcddbg("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)); + return OK; + } +#ifndef CONFIG_LCD_NOGETRUN + else + { + lcddbg("Unsupported LCD type\n"); + return -ENODEV; + } +#endif + + /* De-select the LCD */ + + lcd->deselect(lcd); +} + + /************************************************************************************* + * 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; + + lcdvdbg("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 */ |