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Diffstat (limited to 'nuttx/configs/stm3220g-eval/src/up_lcd.c')
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1 files changed, 1210 insertions, 0 deletions
diff --git a/nuttx/configs/stm3220g-eval/src/up_lcd.c b/nuttx/configs/stm3220g-eval/src/up_lcd.c new file mode 100644 index 000000000..a1fcceef7 --- /dev/null +++ b/nuttx/configs/stm3220g-eval/src/up_lcd.c @@ -0,0 +1,1210 @@ +/************************************************************************************** + * configs/stm3220g-eval/src/up_lcd.c + * arch/arm/src/board/up_lcd.c + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Authors: Gregory Nutt <gnutt@nuttx.org> + * Diego Sanchez <dsanchez@nx-engineering.com> + * + * 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. + * + **************************************************************************************/ +/* This driver supports the following LCDs on the STM324xG_EVAL board: + * + * AM-240320L8TNQW00H (LCD_ILI9320 or LCD_ILI9321) OR + * AM-240320D5TOQW01H (LCD_ILI9325) + */ + +/************************************************************************************** + * 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 <arch/board/board.h> + +#include "up_arch.h" +#include "stm32.h" +#include "stm32_internal.h" +#include "stm3220g-internal.h" + +#if !defined(CONFIG_STM32_ILI9320_DISABLE) || !defined(CONFIG_STM32_ILI9325_DISABLE) + +/************************************************************************************** + * Pre-processor Definitions + **************************************************************************************/ +/* Configuration **********************************************************************/ +/* CONFIG_STM32_ILI9320_DISABLE may be defined to disabled the AM-240320L8TNQW00H + * (LCD_ILI9320 or LCD_ILI9321) + * CONFIG_STM32_ILI9325_DISABLE may be defined to disabled the AM-240320D5TOQW01H + * (LCD_ILI9325) + */ + +/* 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 STM3220G_XRES 320 +# define STM3220G_YRES 240 +#else +# define STM3220G_XRES 240 +# define STM3220G_YRES 320 +#endif + +/* Color depth and format */ + +#define STM3220G_BPP 16 +#define STM3220G_COLORFMT FB_FMT_RGB16_565 + +/* STM3220G-EVAL LCD Hardware Definitions *********************************************/ +/* LCD /CS is CE4, Bank 3 of NOR/SRAM Bank 1~4 */ + +#define STM3220G_LCDBASE ((uintptr_t)(0x60000000 | 0x08000000)) +#define LCD ((struct lcd_regs_s *)STM3220G_LCDBASE) + +#define LCD_REG_0 0x00 +#define LCD_REG_1 0x01 +#define LCD_REG_2 0x02 +#define LCD_REG_3 0x03 +#define LCD_REG_4 0x04 +#define LCD_REG_5 0x05 +#define LCD_REG_6 0x06 +#define LCD_REG_7 0x07 +#define LCD_REG_8 0x08 +#define LCD_REG_9 0x09 +#define LCD_REG_10 0x0a +#define LCD_REG_12 0x0c +#define LCD_REG_13 0x0d +#define LCD_REG_14 0x0e +#define LCD_REG_15 0x0f +#define LCD_REG_16 0x10 +#define LCD_REG_17 0x11 +#define LCD_REG_18 0x12 +#define LCD_REG_19 0x13 +#define LCD_REG_20 0x14 +#define LCD_REG_21 0x15 +#define LCD_REG_22 0x16 +#define LCD_REG_23 0x17 +#define LCD_REG_24 0x18 +#define LCD_REG_25 0x19 +#define LCD_REG_26 0x1a +#define LCD_REG_27 0x1b +#define LCD_REG_28 0x1c +#define LCD_REG_29 0x1d +#define LCD_REG_30 0x1e +#define LCD_REG_31 0x1f +#define LCD_REG_32 0x20 +#define LCD_REG_33 0x21 +#define LCD_REG_34 0x22 +#define LCD_REG_36 0x24 +#define LCD_REG_37 0x25 +#define LCD_REG_40 0x28 +#define LCD_REG_41 0x29 +#define LCD_REG_43 0x2b +#define LCD_REG_45 0x2d +#define LCD_REG_48 0x30 +#define LCD_REG_49 0x31 +#define LCD_REG_50 0x32 +#define LCD_REG_51 0x33 +#define LCD_REG_52 0x34 +#define LCD_REG_53 0x35 +#define LCD_REG_54 0x36 +#define LCD_REG_55 0x37 +#define LCD_REG_56 0x38 +#define LCD_REG_57 0x39 +#define LCD_REG_58 0x3a +#define LCD_REG_59 0x3b +#define LCD_REG_60 0x3c +#define LCD_REG_61 0x3d +#define LCD_REG_62 0x3e +#define LCD_REG_63 0x3f +#define LCD_REG_64 0x40 +#define LCD_REG_65 0x41 +#define LCD_REG_66 0x42 +#define LCD_REG_67 0x43 +#define LCD_REG_68 0x44 +#define LCD_REG_69 0x45 +#define LCD_REG_70 0x46 +#define LCD_REG_71 0x47 +#define LCD_REG_72 0x48 +#define LCD_REG_73 0x49 +#define LCD_REG_74 0x4a +#define LCD_REG_75 0x4b +#define LCD_REG_76 0x4c +#define LCD_REG_77 0x4d +#define LCD_REG_78 0x4e +#define LCD_REG_79 0x4f +#define LCD_REG_80 0x50 +#define LCD_REG_81 0x51 +#define LCD_REG_82 0x52 +#define LCD_REG_83 0x53 +#define LCD_REG_96 0x60 +#define LCD_REG_97 0x61 +#define LCD_REG_106 0x6a +#define LCD_REG_118 0x76 +#define LCD_REG_128 0x80 +#define LCD_REG_129 0x81 +#define LCD_REG_130 0x82 +#define LCD_REG_131 0x83 +#define LCD_REG_132 0x84 +#define LCD_REG_133 0x85 +#define LCD_REG_134 0x86 +#define LCD_REG_135 0x87 +#define LCD_REG_136 0x88 +#define LCD_REG_137 0x89 +#define LCD_REG_139 0x8b +#define LCD_REG_140 0x8c +#define LCD_REG_141 0x8d +#define LCD_REG_143 0x8f +#define LCD_REG_144 0x90 +#define LCD_REG_145 0x91 +#define LCD_REG_146 0x92 +#define LCD_REG_147 0x93 +#define LCD_REG_148 0x94 +#define LCD_REG_149 0x95 +#define LCD_REG_150 0x96 +#define LCD_REG_151 0x97 +#define LCD_REG_152 0x98 +#define LCD_REG_153 0x99 +#define LCD_REG_154 0x9a +#define LCD_REG_157 0x9d +#define LCD_REG_164 0xa4 +#define LCD_REG_192 0xc0 +#define LCD_REG_193 0xc1 +#define LCD_REG_229 0xe5 + +/* LCD IDs */ + +#define ILI9320_ID 0x9320 +#define ILI9321_ID 0x9321 +#define ILI9325_ID 0x9325 + +/* Debug ******************************************************************************/ + +#ifdef CONFIG_DEBUG_LCD +# define lcddbg dbg +# define lcdvdbg vdbg +#else +# define lcddbg(x...) +# define lcdvdbg(x...) +#endif + +/************************************************************************************** + * Private Type Definition + **************************************************************************************/ + +/* LCD type */ + +enum lcd_type_e +{ + LCD_TYPE_UNKNOWN = 0, + LCD_TYPE_ILI9320, + LCD_TYPE_ILI9325 +}; + +/* This structure describes the LCD registers */ + +struct lcd_regs_s +{ + volatile uint16_t address; + volatile uint16_t value; +}; + +/* This structure describes the state of this driver */ + +struct stm3220g_dev_s +{ + /* Publically visible device structure */ + + struct lcd_dev_s dev; + + /* Private LCD-specific information follows */ + + uint8_t type; /* LCD type. See enum lcd_type_e */ + uint8_t power; /* Current power setting */ +}; + +/************************************************************************************** + * Private Function Protototypes + **************************************************************************************/ +/* Low Level LCD access */ + +static void stm3220g_writereg(uint8_t regaddr, uint16_t regval); +static uint16_t stm3220g_readreg(uint8_t regaddr); +static inline void stm3220g_gramselect(void); +static inline void stm3220g_writegram(uint16_t rgbval); +static void stm3220g_readnosetup(FAR uint16_t *accum); +static uint16_t stm3220g_readnoshift(FAR uint16_t *accum); +static void stm3220g_setcursor(uint16_t col, uint16_t row); + +/* LCD Data Transfer Methods */ + +static int stm3220g_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, + size_t npixels); +static int stm3220g_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, + size_t npixels); + +/* LCD Configuration */ + +static int stm3220g_getvideoinfo(FAR struct lcd_dev_s *dev, + FAR struct fb_videoinfo_s *vinfo); +static int stm3220g_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 stm3220g_getpower(struct lcd_dev_s *dev); +static int stm3220g_setpower(struct lcd_dev_s *dev, int power); +static int stm3220g_getcontrast(struct lcd_dev_s *dev); +static int stm3220g_setcontrast(struct lcd_dev_s *dev, unsigned int contrast); + +/* Initialization */ + +static inline void stm3220g_lcdinitialize(void); + +/************************************************************************************** + * Private Data + **************************************************************************************/ + +/* 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. + */ + +static uint16_t g_runbuffer[STM3220G_XRES]; + +/* This structure describes the overall LCD video controller */ + +static const struct fb_videoinfo_s g_videoinfo = +{ + .fmt = STM3220G_COLORFMT, /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */ + .xres = STM3220G_XRES, /* Horizontal resolution in pixel columns */ + .yres = STM3220G_YRES, /* Vertical resolution in pixel rows */ + .nplanes = 1, /* Number of color planes supported */ +}; + +/* This is the standard, NuttX Plane information object */ + +static const struct lcd_planeinfo_s g_planeinfo = +{ + .putrun = stm3220g_putrun, /* Put a run into LCD memory */ + .getrun = stm3220g_getrun, /* Get a run from LCD memory */ + .buffer = (uint8_t*)g_runbuffer, /* Run scratch buffer */ + .bpp = STM3220G_BPP, /* Bits-per-pixel */ +}; + +/* This is the standard, NuttX LCD driver object */ + +static struct stm3220g_dev_s g_lcddev = +{ + .dev = + { + /* LCD Configuration */ + + .getvideoinfo = stm3220g_getvideoinfo, + .getplaneinfo = stm3220g_getplaneinfo, + + /* LCD RGB Mapping -- Not supported */ + /* Cursor Controls -- Not supported */ + + /* LCD Specific Controls */ + + .getpower = stm3220g_getpower, + .setpower = stm3220g_setpower, + .getcontrast = stm3220g_getcontrast, + .setcontrast = stm3220g_setcontrast, + }, +}; + +/************************************************************************************** + * Private Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: stm3220g_writereg + * + * Description: + * Write to an LCD register + * + **************************************************************************************/ + +static void stm3220g_writereg(uint8_t regaddr, uint16_t regval) +{ + /* Write the register address then write the register value */ + + LCD->address = regaddr; + LCD->value = regval; +} + +/************************************************************************************** + * Name: stm3220g_readreg + * + * Description: + * Read from an LCD register + * + **************************************************************************************/ + +static uint16_t stm3220g_readreg(uint8_t regaddr) +{ + /* Write the register address then read the register value */ + + LCD->address = regaddr; + return LCD->value; +} + +/************************************************************************************** + * Name: stm3220g_gramselect + * + * Description: + * Setup to read or write multiple pixels to the GRAM memory + * + **************************************************************************************/ + +static inline void stm3220g_gramselect(void) +{ + LCD->address = LCD_REG_34; +} + +/************************************************************************************** + * Name: stm3220g_writegram + * + * Description: + * Write one pixel to the GRAM memory + * + **************************************************************************************/ + +static inline void stm3220g_writegram(uint16_t rgbval) +{ + /* Write the value (GRAM register already selected) */ + + LCD->value = rgbval; +} + +/************************************************************************************** + * Name: stm3220g_readnosetup + * + * 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 + * + **************************************************************************************/ + +static void stm3220g_readnosetup(FAR uint16_t *accum) +{ + /* Read-ahead one pixel */ + + *accum = LCD->value; +} + +/************************************************************************************** + * Name: stm3220g_readnoshift + * + * 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 + * + **************************************************************************************/ + +static uint16_t stm3220g_readnoshift(FAR uint16_t *accum) +{ + /* Read the value (GRAM register already selected) */ + + return LCD->value; +} + +/************************************************************************************** + * Name: stm3220g_setcursor + * + * 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 stm3220g_setcursor(uint16_t col, uint16_t row) +{ + stm3220g_writereg(LCD_REG_32, row); /* GRAM horizontal address */ + stm3220g_writereg(LCD_REG_33, col); /* GRAM vertical address */ +} + +/************************************************************************************** + * Name: stm3220g_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 stm3220g_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: stm3220g_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 stm3220g_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, + size_t npixels) +{ + 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); + + /* Write the run to GRAM. */ + +#ifdef CONFIG_LCD_LANDSCAPE + /* Convert coordinates -- Here the edge away from the row of buttons on + * the STM3220G-EVAL is used as the top. + */ + + /* Write the GRAM data, manually incrementing X */ + + for (i = 0; i < npixels; i++) + { + /* Write the next pixel to this position */ + + stm3220g_setcursor(col, row); + stm3220g_gramselect(); + stm3220g_writegram(*src++); + + /* Increment to next column */ + + col++; + } +#elif defined(CONFIG_LCD_RLANDSCAPE) + /* Convert coordinates -- Here the edge next to the row of buttons on + * the STM3220G-EVAL is used as the top. + */ + + col = (STM3220G_XRES-1) - col; + row = (STM3220G_YRES-1) - row; + + /* Set the cursor position */ + + stm3220g_setcursor(col, row); + + /* Then write the GRAM data, auto-decrementing X */ + + stm3220g_gramselect(); + for (i = 0; i < npixels; i++) + { + /* Write the next pixel to this position (auto-decrements to the next column) */ + + stm3220g_writegram(*src++); + } +#elif defined(CONFIG_LCD_PORTRAIT) + /* Convert coordinates. In this configuration, the top of the display is to the left + * of the buttons (if the board is held so that the buttons are at the botton of the + * board). + */ + + col = (STM3220G_XRES-1) - col; + + /* Then write the GRAM data, manually incrementing Y (which is col) */ + + for (i = 0; i < npixels; i++) + { + /* Write the next pixel to this position */ + + stm3220g_setcursor(row, col); + stm3220g_gramselect(); + stm3220g_writegram(*src++); + + /* Increment to next column */ + + col--; + } +#else /* CONFIG_LCD_RPORTRAIT */ + /* Convert coordinates. In this configuration, the top of the display is to the right + * of the buttons (if the board is held so that the buttons are at the botton of the + * board). + */ + + row = (STM3220G_YRES-1) - row; + + /* Then write the GRAM data, manually incrementing Y (which is col) */ + + for (i = 0; i < npixels; i++) + { + /* Write the next pixel to this position */ + + stm3220g_setcursor(row, col); + stm3220g_gramselect(); + stm3220g_writegram(*src++); + + /* Decrement to next column */ + + col++; + } +#endif + return OK; +} + +/************************************************************************************** + * Name: stm3220g_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 stm3220g_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, + size_t npixels) +{ + FAR uint16_t *dest = (FAR uint16_t*)buffer; + void (*readsetup)(FAR uint16_t *accum); + uint16_t (*readgram)(FAR uint16_t *accum); + 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); + + /* Configure according to the LCD type. Kind of silly with only one LCD type. */ + + switch (g_lcddev.type) + { + case LCD_TYPE_ILI9320: + case LCD_TYPE_ILI9325: + readsetup = stm3220g_readnosetup; + readgram = stm3220g_readnoshift; + break; + + default: /* Shouldn't happen */ + return -ENOSYS; + } + + /* Read the run from GRAM. */ + +#ifdef CONFIG_LCD_LANDSCAPE + /* Convert coordinates -- Here the edge away from the row of buttons on + * the STM3220G-EVAL is used as the top. + */ + + for (i = 0; i < npixels; i++) + { + /* Read the next pixel from this position */ + + stm3220g_setcursor(row, col); + stm3220g_gramselect(); + readsetup(&accum); + *dest++ = readgram(&accum); + + /* Increment to next column */ + + col++; + } +#elif defined(CONFIG_LCD_RLANDSCAPE) + /* Convert coordinates -- Here the edge next to the row of buttons on + * the STM3220G-EVAL is used as the top. + */ + + col = (STM3220G_XRES-1) - col; + row = (STM3220G_YRES-1) - row; + + /* Set the cursor position */ + + stm3220g_setcursor(col, row); + + /* Then read the GRAM data, auto-decrementing Y */ + + stm3220g_gramselect(); + + /* Prime the pump for unaligned read data */ + + readsetup(&accum); + + for (i = 0; i < npixels; i++) + { + /* Read the next pixel from this position (autoincrements to the next row) */ + + *dest++ = readgram(&accum); + } +#elif defined(CONFIG_LCD_PORTRAIT) + /* Convert coordinates. In this configuration, the top of the display is to the left + * of the buttons (if the board is held so that the buttons are at the botton of the + * board). + */ + + col = (STM3220G_XRES-1) - col; + + /* Then read the GRAM data, manually incrementing Y (which is col) */ + + for (i = 0; i < npixels; i++) + { + /* Read the next pixel from this position */ + + stm3220g_setcursor(row, col); + stm3220g_gramselect(); + readsetup(&accum); + *dest++ = readgram(&accum); + + /* Increment to next column */ + + col--; + } +#else /* CONFIG_LCD_RPORTRAIT */ + /* Convert coordinates. In this configuration, the top of the display is to the right + * of the buttons (if the board is held so that the buttons are at the botton of the + * board). + */ + + row = (STM3220G_YRES-1) - row; + + /* Then write the GRAM data, manually incrementing Y (which is col) */ + + for (i = 0; i < npixels; i++) + { + /* Write the next pixel to this position */ + + stm3220g_setcursor(row, col); + stm3220g_gramselect(); + readsetup(&accum); + *dest++ = readgram(&accum); + + /* Decrement to next column */ + + col++; + } +#endif + + return OK; +} + +/************************************************************************************** + * Name: stm3220g_getvideoinfo + * + * Description: + * Get information about the LCD video controller configuration. + * + **************************************************************************************/ + +static int stm3220g_getvideoinfo(FAR struct lcd_dev_s *dev, + FAR struct fb_videoinfo_s *vinfo) +{ + DEBUGASSERT(dev && vinfo); + lcdvdbg("fmt: %d xres: %d yres: %d nplanes: %d\n", + g_videoinfo.fmt, g_videoinfo.xres, g_videoinfo.yres, g_videoinfo.nplanes); + memcpy(vinfo, &g_videoinfo, sizeof(struct fb_videoinfo_s)); + return OK; +} + +/************************************************************************************** + * Name: stm3220g_getplaneinfo + * + * Description: + * Get information about the configuration of each LCD color plane. + * + **************************************************************************************/ + +static int stm3220g_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, + FAR struct lcd_planeinfo_s *pinfo) +{ + DEBUGASSERT(dev && pinfo && planeno == 0); + lcdvdbg("planeno: %d bpp: %d\n", planeno, g_planeinfo.bpp); + memcpy(pinfo, &g_planeinfo, sizeof(struct lcd_planeinfo_s)); + return OK; +} + +/************************************************************************************** + * Name: stm3220g_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 stm3220g_getpower(struct lcd_dev_s *dev) +{ + lcdvdbg("power: %d\n", 0); + return g_lcddev.power; +} + +/************************************************************************************** + * Name: stm3220g_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 stm3220g_poweroff(void) +{ + /* Turn the display off */ + + stm3220g_writereg(LCD_REG_7, 0); + + /* Remember the power off state */ + + g_lcddev.power = 0; + return OK; +} + +/************************************************************************************** + * Name: stm3220g_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 stm3220g_setpower(struct lcd_dev_s *dev, int power) +{ + lcdvdbg("power: %d\n", power); + DEBUGASSERT((unsigned)power <= CONFIG_LCD_MAXPOWER); + + /* Set new power level */ + + if (power > 0) + { + /* Then turn the display on */ + +#if !defined(CONFIG_STM32_ILI9320_DISABLE) || !defined(CONFIG_STM32_ILI9325_DISABLE) + stm3220g_writereg(LCD_REG_7, 0x0173); +#endif + g_lcddev.power = power; + } + else + { + /* Turn the display off */ + + stm3220g_poweroff(); + } + + return OK; +} + +/************************************************************************************** + * Name: stm3220g_getcontrast + * + * Description: + * Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST). + * + **************************************************************************************/ + +static int stm3220g_getcontrast(struct lcd_dev_s *dev) +{ + lcdvdbg("Not implemented\n"); + return -ENOSYS; +} + +/************************************************************************************** + * Name: stm3220g_setcontrast + * + * Description: + * Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST). + * + **************************************************************************************/ + +static int stm3220g_setcontrast(struct lcd_dev_s *dev, unsigned int contrast) +{ + lcdvdbg("contrast: %d\n", contrast); + return -ENOSYS; +} + +/************************************************************************************** + * Name: stm3220g_lcdinitialize + * + * Description: + * Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST). + * + **************************************************************************************/ + +static inline void stm3220g_lcdinitialize(void) +{ + uint16_t id; + + /* Check LCD ID */ + + id = stm3220g_readreg(LCD_REG_0); + lcddbg("LCD ID: %04x\n", id); + + /* Check if the ID is for the STM32_ILI9320 (or ILI9321) or STM32_ILI9325 */ + +#if !defined(CONFIG_STM32_ILI9320_DISABLE) && !defined(CONFIG_STM32_ILI9325_DISABLE) + if (id == ILI9320_ID || id == ILI9321_ID || id == ILI9325_ID) +#elif !defined(CONFIG_STM32_ILI9320_DISABLE) && defined(CONFIG_STM32_ILI9325_DISABLE) + if (id == ILI9320_ID || id == ILI9321_ID) +#else /* if defined(CONFIG_STM32_ILI9320_DISABLE) && !defined(CONFIG_STM32_ILI9325_DISABLE)) */ + if (id == ILI9325_ID) +#endif + { + /* Save the LCD type (not actually used at for anything important) */ + +#if !defined(CONFIG_STM32_ILI9320_DISABLE) +# if !defined(CONFIG_STM32_ILI9325_DISABLE) + if (id == ILI9325_ID) + { + g_lcddev.type = LCD_TYPE_ILI9325; + } + else +# endif + { + g_lcddev.type = LCD_TYPE_ILI9320; + stm3220g_writereg(LCD_REG_229, 0x8000); /* Set the internal vcore voltage */ + } +#else /* if !defined(CONFIG_STM32_ILI9325_DISABLE) */ + g_lcddev.type = LCD_TYPE_ILI9325; +#endif + lcddbg("LCD type: %d\n", g_lcddev.type); + + /* Start Initial Sequence */ + + stm3220g_writereg(LCD_REG_0, 0x0001); /* Start internal OSC. */ + stm3220g_writereg(LCD_REG_1, 0x0100); /* Set SS and SM bit */ + stm3220g_writereg(LCD_REG_2, 0x0700); /* Set 1 line inversion */ + stm3220g_writereg(LCD_REG_3, 0x1030); /* Set GRAM write direction and BGR=1. */ + //stm3220g_writereg(LCD_REG_3, 0x1018); /* Set GRAM write direction and BGR=1. */ + stm3220g_writereg(LCD_REG_4, 0x0000); /* Resize register */ + stm3220g_writereg(LCD_REG_8, 0x0202); /* Set the back porch and front porch */ + stm3220g_writereg(LCD_REG_9, 0x0000); /* Set non-display area refresh cycle ISC[3:0] */ + stm3220g_writereg(LCD_REG_10, 0x0000); /* FMARK function */ + stm3220g_writereg(LCD_REG_12, 0x0000); /* RGB interface setting */ + stm3220g_writereg(LCD_REG_13, 0x0000); /* Frame marker Position */ + stm3220g_writereg(LCD_REG_15, 0x0000); /* RGB interface polarity */ + + /* Power On sequence */ + + stm3220g_writereg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */ + stm3220g_writereg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */ + stm3220g_writereg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */ + stm3220g_writereg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude */ + up_mdelay(200); /* Dis-charge capacitor power voltage (200ms) */ + + stm3220g_writereg(LCD_REG_16, 0x17b0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */ + stm3220g_writereg(LCD_REG_17, 0x0137); /* DC1[2:0], DC0[2:0], VC[2:0] */ + up_mdelay(50); + + stm3220g_writereg(LCD_REG_18, 0x0139); /* VREG1OUT voltage */ + up_mdelay(50); + + stm3220g_writereg(LCD_REG_19, 0x1d00); /* VDV[4:0] for VCOM amplitude */ + stm3220g_writereg(LCD_REG_41, 0x0013); /* VCM[4:0] for VCOMH */ + up_mdelay(50); + + stm3220g_writereg(LCD_REG_32, 0x0000); /* GRAM horizontal Address */ + stm3220g_writereg(LCD_REG_33, 0x0000); /* GRAM Vertical Address */ + + /* Adjust the Gamma Curve (ILI9320/1) */ + +#if !defined(CONFIG_STM32_ILI9320_DISABLE) +# if !defined(CONFIG_STM32_ILI9325_DISABLE) + if (g_lcddev.type == LCD_TYPE_ILI9320) +# endif + { + stm3220g_writereg(LCD_REG_48, 0x0006); + stm3220g_writereg(LCD_REG_49, 0x0101); + stm3220g_writereg(LCD_REG_50, 0x0003); + stm3220g_writereg(LCD_REG_53, 0x0106); + stm3220g_writereg(LCD_REG_54, 0x0b02); + stm3220g_writereg(LCD_REG_55, 0x0302); + stm3220g_writereg(LCD_REG_56, 0x0707); + stm3220g_writereg(LCD_REG_57, 0x0007); + stm3220g_writereg(LCD_REG_60, 0x0600); + stm3220g_writereg(LCD_REG_61, 0x020b); + } +#endif + /* Adjust the Gamma Curve (ILI9325) */ + +#if !defined(CONFIG_STM32_ILI9325_DISABLE) +# if !defined(CONFIG_STM32_ILI9320_DISABLE) + else +# endif + { + stm3220g_writereg(LCD_REG_48, 0x0007); + stm3220g_writereg(LCD_REG_49, 0x0302); + stm3220g_writereg(LCD_REG_50, 0x0105); + stm3220g_writereg(LCD_REG_53, 0x0206); + stm3220g_writereg(LCD_REG_54, 0x0808); + stm3220g_writereg(LCD_REG_55, 0x0206); + stm3220g_writereg(LCD_REG_56, 0x0504); + stm3220g_writereg(LCD_REG_57, 0x0007); + stm3220g_writereg(LCD_REG_60, 0x0105); + stm3220g_writereg(LCD_REG_61, 0x0808); + } +#endif + + /* Set GRAM area */ + + stm3220g_writereg(LCD_REG_80, 0x0000); /* Horizontal GRAM Start Address */ + stm3220g_writereg(LCD_REG_81, 0x00ef); /* Horizontal GRAM End Address */ + stm3220g_writereg(LCD_REG_82, 0x0000); /* Vertical GRAM Start Address */ + stm3220g_writereg(LCD_REG_83, 0x013f); /* Vertical GRAM End Address */ + stm3220g_writereg(LCD_REG_96, 0x2700); /* Gate Scan Line */ + //stm3220g_writereg(LCD_REG_96, 0xa700); /* Gate Scan Line(GS=1, scan direction is G320~G1) */ + stm3220g_writereg(LCD_REG_97, 0x0001); /* NDL,VLE, REV */ + stm3220g_writereg(LCD_REG_106, 0x0000); /* Set scrolling line */ + + /* Partial Display Control */ + + stm3220g_writereg(LCD_REG_128, 0x0000); + stm3220g_writereg(LCD_REG_129, 0x0000); + stm3220g_writereg(LCD_REG_130, 0x0000); + stm3220g_writereg(LCD_REG_131, 0x0000); + stm3220g_writereg(LCD_REG_132, 0x0000); + stm3220g_writereg(LCD_REG_133, 0x0000); + + /* Panel Control */ + + stm3220g_writereg(LCD_REG_144, 0x0010); + stm3220g_writereg(LCD_REG_146, 0x0000); + stm3220g_writereg(LCD_REG_147, 0x0003); + stm3220g_writereg(LCD_REG_149, 0x0110); + stm3220g_writereg(LCD_REG_151, 0x0000); + stm3220g_writereg(LCD_REG_152, 0x0000); + + /* Set GRAM write direction and BGR = 1 + * + * I/D=01 (Horizontal : increment, Vertical : decrement) + * AM=1 (address is updated in vertical writing direction) + */ + + stm3220g_writereg(LCD_REG_3, 0x1018); + stm3220g_writereg(LCD_REG_7, 0); /* Display off */ + } + else + { + lcddbg("Unsupported LCD type\n"); + } +} + + /************************************************************************************** + * Public Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: up_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). + * + **************************************************************************************/ + +int up_lcdinitialize(void) +{ + lcdvdbg("Initializing\n"); + + /* Configure GPIO pins and configure the FSMC to support the LCD */ + + stm32_selectlcd(); + + /* Configure and enable LCD */ + + up_mdelay(50); + stm3220g_lcdinitialize(); + + /* Clear the display (setting it to the color 0=black) */ + + stm3220g_lcdclear(0); + + /* Turn the display off */ + + stm3220g_poweroff(); + return OK; +} + +/************************************************************************************** + * Name: up_lcdgetdev + * + * Description: + * Return a a reference to the LCD object for the specified LCD. This allows support + * for multiple LCD devices. + * + **************************************************************************************/ + +FAR struct lcd_dev_s *up_lcdgetdev(int lcddev) +{ + DEBUGASSERT(lcddev == 0); + return &g_lcddev.dev; +} + +/************************************************************************************** + * Name: up_lcduninitialize + * + * Description: + * Unitialize the LCD support + * + **************************************************************************************/ + +void up_lcduninitialize(void) +{ + stm3220g_poweroff(); + stm32_deselectlcd(); +} + +/************************************************************************************** + * Name: stm3220g_lcdclear + * + * Description: + * This is a non-standard LCD interface just for the stm3220g-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 stm3220g_lcdclear(uint16_t color) +{ + uint32_t i = 0; + + stm3220g_setcursor(0, STM3220G_XRES-1); + stm3220g_gramselect(); + for (i = 0; i < STM3220G_XRES * STM3220G_YRES; i++) + { + LCD->value = color; + } +} + +#endif /* !CONFIG_STM32_ILI9320_DISABLE || !CONFIG_STM32_ILI9325_DISABLE */ |