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nuttx/configs/stm3210e-eval/src/up_lcd.c

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Add STM3210E-EVAL LCD driver. git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3745 42af7a65-404d-4744-a932-0658087f49c3
2011-07-05 22:15:48 +02:00
/**************************************************************************************
* configs/stm3210e-eval/src/up_lcd.c
* arch/arm/src/board/up_lcd.c
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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 "up_arch.h"
#include "stm3210e-internal.h"
/**************************************************************************************
* 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)
# define CONFIG_LCD_MAXPOWER 1
#endif
#if CONFIG_LCD_MAXPOWER != 1
# warning "CONFIG_LCD_MAXPOWER exceeds supported maximum"
# undef CONFIG_LCD_MAXPOWER
# define CONFIG_LCD_MAXPOWER 1
Add NX configuration for the STM3210E-EVAL board git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3746 42af7a65-404d-4744-a932-0658087f49c3
2011-07-06 00:45:31 +02:00
#endif
/* Check orientation */
#if defined(CONFIG_LCD_PORTRAIT)
# if defined(CONFIG_LCD_LANDSCAPE)
# error "Cannot define both portrait and landscape orientations"
# endif
#elif !defined(CONFIG_LCD_LANDSCAPE)
# define CONFIG_LCD_LANDSCAPE 1
Add STM3210E-EVAL LCD driver. git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3745 42af7a65-404d-4744-a932-0658087f49c3
2011-07-05 22:15:48 +02:00
#endif
/* Define CONFIG_LCD_DEBUG to enable register-level debug output. Verbose debug must
* also be enabled.
*/
#ifndef CONFIG_DEBUG
# undef CONFIG_DEBUG_VERBOSE
# undef CONFIG_DEBUG_GRAPHICS
#endif
#ifndef CONFIG_DEBUG_VERBOSE
# undef CONFIG_LCD_DEBUG
#endif
/* Display/Color Properties ***********************************************************/
/* Display Resolution */
#ifdef CONFIG_LCD_LANDSCAPE
# define STM3210E_XRES 320
# define STM3210E_YRES 240
#else
# define STM3210E_XRES 240
# define STM3210E_YRES 320
#endif
/* Color depth and format */
#define STM3210E_BPP 16
#define STM3210E_COLORFMT FB_FMT_RGB16_565
/* STM3210E-EVAL LCD Hardware Definitions *********************************************/
/* LCD /CS is CE4, Bank 4 of NOR/SRAM Bank 1~4 */
#define STM3210E_LCDBASE ((uint32_t)(0x60000000 | 0x0c000000))
#define LCD ((struct lcd_regs_s *) STM3210E_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_192 0xc0
#define LCD_REG_193 0xc1
#define LCD_REG_229 0xe5
/* Debug ******************************************************************************/
#ifdef CONFIG_LCD_DEBUG
# define skeldbg(format, arg...) vdbg(format, ##arg)
#else
# define skeldbg(x...)
#endif
/**************************************************************************************
* Private Type Definition
**************************************************************************************/
/* 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 stm3210e_dev_s
{
/* Publically visible device structure */
struct lcd_dev_s dev;
/* Private LCD-specific information follows */
bool spfd5408b; /* TRUE: LCD is SPFD5408B Controller */
bool powered; /* TRUE: display on */
};
/**************************************************************************************
* Private Function Protototypes
**************************************************************************************/
/* Low Level LCD access */
static void stm3210e_writereg(uint8_t regaddr, uint16_t regval);
static uint16_t stm3210e_readreg(uint8_t regaddr);
static inline void stm3210e_gramselect(void);
static inline void stm3210e_writegram(uint16_t rgbval);
static inline uint16_t stm3210e_readgram(void);
/* LCD Data Transfer Methods */
static int stm3210e_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
size_t npixels);
static int stm3210e_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
size_t npixels);
/* LCD Configuration */
static int stm3210e_getvideoinfo(FAR struct lcd_dev_s *dev,
FAR struct fb_videoinfo_s *vinfo);
static int stm3210e_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 stm3210e_getpower(struct lcd_dev_s *dev);
static int stm3210e_setpower(struct lcd_dev_s *dev, int power);
static int stm3210e_getcontrast(struct lcd_dev_s *dev);
static int stm3210e_setcontrast(struct lcd_dev_s *dev, unsigned int contrast);
/* Initialization */
static inline void stm3210e_lcdinitialize(void);
static inline void stm3210e_lcdclear(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[STM3210E_XRES];
/* This structure describes the overall LCD video controller */
static const struct fb_videoinfo_s g_videoinfo =
{
.fmt = STM3210E_COLORFMT, /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
.xres = STM3210E_XRES, /* Horizontal resolution in pixel columns */
.yres = STM3210E_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 = stm3210e_putrun, /* Put a run into LCD memory */
.getrun = stm3210e_getrun, /* Get a run from LCD memory */
.buffer = (uint8_t*)g_runbuffer, /* Run scratch buffer */
.bpp = STM3210E_BPP, /* Bits-per-pixel */
};
/* This is the standard, NuttX LCD driver object */
static struct stm3210e_dev_s g_lcddev =
{
.dev =
{
/* LCD Configuration */
.getvideoinfo = stm3210e_getvideoinfo,
.getplaneinfo = stm3210e_getplaneinfo,
/* LCD RGB Mapping -- Not supported */
/* Cursor Controls -- Not supported */
/* LCD Specific Controls */
.getpower = stm3210e_getpower,
.setpower = stm3210e_setpower,
.getcontrast = stm3210e_getcontrast,
.setcontrast = stm3210e_setcontrast,
},
};
/**************************************************************************************
* Private Functions
**************************************************************************************/
/**************************************************************************************
* Name: stm3210e_writereg
*
* Description:
* Write to an LCD register
*
**************************************************************************************/
static void stm3210e_writereg(uint8_t regaddr, uint16_t regval)
{
/* Write the register address then write the register value */
LCD->address = regaddr;
LCD->value = regval;
}
/**************************************************************************************
* Name: stm3210e_readreg
*
* Description:
* Read from an LCD register
*
**************************************************************************************/
static uint16_t stm3210e_readreg(uint8_t regaddr)
{
/* Write the register address then read the register value */
LCD->address = regaddr;
return LCD->value;
}
/**************************************************************************************
* Name: stm3210e_gramselect
*
* Description:
* Setup to read or write multiple pixels to the GRAM memory
*
**************************************************************************************/
static inline void stm3210e_gramselect(void)
{
LCD->address = LCD_REG_34;
}
/**************************************************************************************
* Name: stm3210e_writegram
*
* Description:
* Write one pixel to the GRAM memory
*
**************************************************************************************/
static inline void stm3210e_writegram(uint16_t rgbval)
{
/* Write the value (GRAM register already selected) */
LCD->value = rgbval;
}
/**************************************************************************************
* Name: stm3210e_readgram
*
* Description:
* Read one pixel from the GRAM memory
*
**************************************************************************************/
static inline uint16_t stm3210e_readgram(void)
{
/* Write the value (GRAM register already selected) */
return LCD->value;
}
/**************************************************************************************
* Name: stm3210e_setcursor
*
* Description:
* Set the cursor position
*
**************************************************************************************/
static void stm3210e_setcursor(uint8_t col, uint16_t row)
{
stm3210e_writereg(LCD_REG_32, col);
stm3210e_writereg(LCD_REG_33, row);
}
/**************************************************************************************
* Name: stm3210e_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 stm3210e_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 */
gvdbg("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
stm3210e_setcursor(col, row);
stm3210e_gramselect();
for (i = 0; i < npixels; i++)
{
/* Write the next pixel to this position (autoincrements to the next column) */
stm3210e_writegram(*src++);
}
#else /* CONFIG_LCD_PORTRAIT */
for (i = 0; i < npixels; i++)
{
/* Write the next pixel to this position */
stm3210e_setcursor(row, col);
stm3210e_gramselect();
stm3210e_writegram(*src++);
/* Increment to next column (which is really a row in this configuration) */
col++;
}
#endif
return OK;
}
/**************************************************************************************
* Name: stm3210e_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 stm3210e_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
size_t npixels)
{
FAR uint16_t *dest = (FAR uint16_t*)buffer;
int i;
/* Buffer must be provided and aligned to a 16-bit address boundary */
gvdbg("row: %d col: %d npixels: %d\n", row, col, npixels);
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
/* Set up to read the run. */
stm3210e_setcursor(col, row);
/* Read the run from GRAM. */
#ifdef CONFIG_LCD_LANDSCAPE
stm3210e_gramselect();
for (i = 0; i < npixels; i++)
{
/* Read the next pixel from this position (autoincrements to the next row) */
*dest++ = stm3210e_readgram();
}
#else /* CONFIG_LCD_PORTRAIT */
for (i = 0; i < npixels; i++)
{
/* Read the next pixel from this position */
stm3210e_gramselect();
*dest++ = stm3210e_readgram();
/* Increment to next column */
col++;
stm3210e_setcursor(col, row);
}
#endif
return OK;
}
/**************************************************************************************
* Name: stm3210e_getvideoinfo
*
* Description:
* Get information about the LCD video controller configuration.
*
**************************************************************************************/
static int stm3210e_getvideoinfo(FAR struct lcd_dev_s *dev,
FAR struct fb_videoinfo_s *vinfo)
{
DEBUGASSERT(dev && vinfo);
gvdbg("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: stm3210e_getplaneinfo
*
* Description:
* Get information about the configuration of each LCD color plane.
*
**************************************************************************************/
static int stm3210e_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
FAR struct lcd_planeinfo_s *pinfo)
{
DEBUGASSERT(dev && pinfo && planeno == 0);
gvdbg("planeno: %d bpp: %d\n", planeno, g_planeinfo.bpp);
memcpy(pinfo, &g_planeinfo, sizeof(struct lcd_planeinfo_s));
return OK;
}
/**************************************************************************************
* Name: stm3210e_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 stm3210e_getpower(struct lcd_dev_s *dev)
{
gvdbg("power: %d\n", 0);
return g_lcddev.powered ? 1 : 0;
}
/**************************************************************************************
* Name: stm3210e_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 stm3210e_setpower(struct lcd_dev_s *dev, int power)
{
gvdbg("power: %d\n", power);
DEBUGASSERT(power <= CONFIG_LCD_MAXPOWER);
/* Set new power level */
if (power)
{
/* Turn the display on: 262K color and display ON */
stm3210e_writereg(LCD_REG_7, g_lcddev.spfd5408b ? 0x0112 : 0x0173);
g_lcddev.powered = true;
}
else
{
stm3210e_writereg(LCD_REG_7, 0);
g_lcddev.powered = false;
}
return OK;
}
/**************************************************************************************
* Name: stm3210e_getcontrast
*
* Description:
* Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST).
*
**************************************************************************************/
static int stm3210e_getcontrast(struct lcd_dev_s *dev)
{
gvdbg("Not implemented\n");
return -ENOSYS;
}
/**************************************************************************************
* Name: stm3210e_setcontrast
*
* Description:
* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
*
**************************************************************************************/
static int stm3210e_setcontrast(struct lcd_dev_s *dev, unsigned int contrast)
{
gvdbg("contrast: %d\n", contrast);
return -ENOSYS;
}
/**************************************************************************************
* Name: stm3210e_lcdinitialize
*
* Description:
* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
*
**************************************************************************************/
static inline void stm3210e_lcdinitialize(void)
{
/* Check if the LCD is SPFD5408B Controller */
if (stm3210e_readreg(LCD_REG_0) == 0x5408)
{
g_lcddev.spfd5408b = true;
/* Start Initial Sequence */
stm3210e_writereg(LCD_REG_1, 0x0100); /* Set SS bit */
stm3210e_writereg(LCD_REG_2, 0x0700); /* Set 1 line inversion */
stm3210e_writereg(LCD_REG_3, 0x1030); /* Set GRAM write direction and BGR=1. */
stm3210e_writereg(LCD_REG_4, 0x0000); /* Resize register */
stm3210e_writereg(LCD_REG_8, 0x0202); /* Set the back porch and front porch */
stm3210e_writereg(LCD_REG_9, 0x0000); /* Set non-display area refresh cycle ISC[3:0] */
stm3210e_writereg(LCD_REG_10, 0x0000); /* FMARK function */
stm3210e_writereg(LCD_REG_12, 0x0000); /* RGB 18-bit System interface setting */
stm3210e_writereg(LCD_REG_13, 0x0000); /* Frame marker Position */
stm3210e_writereg(LCD_REG_15, 0x0000); /* RGB interface polarity, no impact */
/* Power On sequence */
stm3210e_writereg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
stm3210e_writereg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
stm3210e_writereg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */
stm3210e_writereg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude */
up_mdelay(200); /* Dis-charge capacitor power voltage (200ms) */
stm3210e_writereg(LCD_REG_17, 0x0007); /* DC1[2:0], DC0[2:0], VC[2:0] */
up_mdelay(50);
stm3210e_writereg(LCD_REG_16, 0x12B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
up_mdelay(50);
stm3210e_writereg(LCD_REG_18, 0x01bd); /* External reference voltage= Vci */
up_mdelay(50);
stm3210e_writereg(LCD_REG_19, 0x1400); /* VDV[4:0] for VCOM amplitude */
stm3210e_writereg(LCD_REG_41, 0x000e); /* VCM[4:0] for VCOMH */
up_mdelay(50);
stm3210e_writereg(LCD_REG_32, 0x0000); /* GRAM horizontal Address */
stm3210e_writereg(LCD_REG_33, 0x013f); /* GRAM Vertical Address */
/* Adjust the Gamma Curve (SPFD5408B)*/
stm3210e_writereg(LCD_REG_48, 0x0b0d);
stm3210e_writereg(LCD_REG_49, 0x1923);
stm3210e_writereg(LCD_REG_50, 0x1c26);
stm3210e_writereg(LCD_REG_51, 0x261c);
stm3210e_writereg(LCD_REG_52, 0x2419);
stm3210e_writereg(LCD_REG_53, 0x0d0b);
stm3210e_writereg(LCD_REG_54, 0x1006);
stm3210e_writereg(LCD_REG_55, 0x0610);
stm3210e_writereg(LCD_REG_56, 0x0706);
stm3210e_writereg(LCD_REG_57, 0x0304);
stm3210e_writereg(LCD_REG_58, 0x0e05);
stm3210e_writereg(LCD_REG_59, 0x0e01);
stm3210e_writereg(LCD_REG_60, 0x010e);
stm3210e_writereg(LCD_REG_61, 0x050e);
stm3210e_writereg(LCD_REG_62, 0x0403);
stm3210e_writereg(LCD_REG_63, 0x0607);
/* Set GRAM area */
stm3210e_writereg(LCD_REG_80, 0x0000); /* Horizontal GRAM Start Address */
stm3210e_writereg(LCD_REG_81, 0x00ef); /* Horizontal GRAM End Address */
stm3210e_writereg(LCD_REG_82, 0x0000); /* Vertical GRAM Start Address */
stm3210e_writereg(LCD_REG_83, 0x013f); /* Vertical GRAM End Address */
stm3210e_writereg(LCD_REG_96, 0xa700); /* Gate Scan Line */
stm3210e_writereg(LCD_REG_97, 0x0001); /* NDL, VLE, REV */
stm3210e_writereg(LCD_REG_106, 0x0000); /* set scrolling line */
/* Partial Display Control */
stm3210e_writereg(LCD_REG_128, 0x0000);
stm3210e_writereg(LCD_REG_129, 0x0000);
stm3210e_writereg(LCD_REG_130, 0x0000);
stm3210e_writereg(LCD_REG_131, 0x0000);
stm3210e_writereg(LCD_REG_132, 0x0000);
stm3210e_writereg(LCD_REG_133, 0x0000);
/* Panel Control */
stm3210e_writereg(LCD_REG_144, 0x0010);
stm3210e_writereg(LCD_REG_146, 0x0000);
stm3210e_writereg(LCD_REG_147, 0x0003);
stm3210e_writereg(LCD_REG_149, 0x0110);
stm3210e_writereg(LCD_REG_151, 0x0000);
stm3210e_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)
*/
stm3210e_writereg(LCD_REG_3, 0x1018);
stm3210e_writereg(LCD_REG_7, 0); /* Display OFF */
}
else
{
g_lcddev.spfd5408b = false;
/* Start Initial Sequence */
stm3210e_writereg(LCD_REG_229, 0x8000); /* Set the internal vcore voltage */
stm3210e_writereg(LCD_REG_0, 0x0001); /* Start internal OSC. */
stm3210e_writereg(LCD_REG_1, 0x0100); /* Set SS and SM bit */
stm3210e_writereg(LCD_REG_2, 0x0700); /* Set 1 line inversion */
stm3210e_writereg(LCD_REG_3, 0x1030); /* Set GRAM write direction and BGR=1. */
stm3210e_writereg(LCD_REG_4, 0x0000); /* Resize register */
stm3210e_writereg(LCD_REG_8, 0x0202); /* Set the back porch and front porch */
stm3210e_writereg(LCD_REG_9, 0x0000); /* Set non-display area refresh cycle ISC[3:0] */
stm3210e_writereg(LCD_REG_10, 0x0000); /* FMARK function */
stm3210e_writereg(LCD_REG_12, 0x0000); /* RGB interface setting */
stm3210e_writereg(LCD_REG_13, 0x0000); /* Frame marker Position */
stm3210e_writereg(LCD_REG_15, 0x0000); /* RGB interface polarity */
/* Power On sequence */
stm3210e_writereg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
stm3210e_writereg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
stm3210e_writereg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */
stm3210e_writereg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude */
up_mdelay(200); /* Dis-charge capacitor power voltage (200ms) */
stm3210e_writereg(LCD_REG_16, 0x17b0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
stm3210e_writereg(LCD_REG_17, 0x0137); /* DC1[2:0], DC0[2:0], VC[2:0] */
up_mdelay(50);
stm3210e_writereg(LCD_REG_18, 0x0139); /* VREG1OUT voltage */
up_mdelay(50);
stm3210e_writereg(LCD_REG_19, 0x1d00); /* VDV[4:0] for VCOM amplitude */
stm3210e_writereg(LCD_REG_41, 0x0013); /* VCM[4:0] for VCOMH */
up_mdelay(50);
stm3210e_writereg(LCD_REG_32, 0x0000); /* GRAM horizontal Address */
stm3210e_writereg(LCD_REG_33, 0x0000); /* GRAM Vertical Address */
/* Adjust the Gamma Curve */
stm3210e_writereg(LCD_REG_48, 0x0006);
stm3210e_writereg(LCD_REG_49, 0x0101);
stm3210e_writereg(LCD_REG_50, 0x0003);
stm3210e_writereg(LCD_REG_53, 0x0106);
stm3210e_writereg(LCD_REG_54, 0x0b02);
stm3210e_writereg(LCD_REG_55, 0x0302);
stm3210e_writereg(LCD_REG_56, 0x0707);
stm3210e_writereg(LCD_REG_57, 0x0007);
stm3210e_writereg(LCD_REG_60, 0x0600);
stm3210e_writereg(LCD_REG_61, 0x020b);
/* Set GRAM area */
stm3210e_writereg(LCD_REG_80, 0x0000); /* Horizontal GRAM Start Address */
stm3210e_writereg(LCD_REG_81, 0x00ef); /* Horizontal GRAM End Address */
stm3210e_writereg(LCD_REG_82, 0x0000); /* Vertical GRAM Start Address */
stm3210e_writereg(LCD_REG_83, 0x013f); /* Vertical GRAM End Address */
stm3210e_writereg(LCD_REG_96, 0x2700); /* Gate Scan Line */
stm3210e_writereg(LCD_REG_97, 0x0001); /* NDL,VLE, REV */
stm3210e_writereg(LCD_REG_106, 0x0000); /* Set scrolling line */
/* Partial Display Control */
stm3210e_writereg(LCD_REG_128, 0x0000);
stm3210e_writereg(LCD_REG_129, 0x0000);
stm3210e_writereg(LCD_REG_130, 0x0000);
stm3210e_writereg(LCD_REG_131, 0x0000);
stm3210e_writereg(LCD_REG_132, 0x0000);
stm3210e_writereg(LCD_REG_133, 0x0000);
/* Panel Control */
stm3210e_writereg(LCD_REG_144, 0x0010);
stm3210e_writereg(LCD_REG_146, 0x0000);
stm3210e_writereg(LCD_REG_147, 0x0003);
stm3210e_writereg(LCD_REG_149, 0x0110);
stm3210e_writereg(LCD_REG_151, 0x0000);
stm3210e_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)
*/
stm3210e_writereg(LCD_REG_3, 0x1018);
stm3210e_writereg(LCD_REG_7, 0); /* Display off */
}
}
/**************************************************************************************
* Name: stm3210e_lcdclear
*
* Description:
* Clear GRAM
*
**************************************************************************************/
static inline void stm3210e_lcdclear(void)
{
uint32_t i = 0;
stm3210e_setcursor(0, STM3210E_XRES-1);
stm3210e_gramselect();
for (i = 0; i < STM3210E_XRES * STM3210E_YRES; i++)
{
LCD->value = 0; /* Black */
}
}
/**************************************************************************************
* 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)
{
gvdbg("Initializing\n");
/* Configure GPIO pins and configure the FSMC to support the LCD */
stm32_selectlcd();
/* Configure and enable LCD */
up_mdelay(50);
stm3210e_lcdinitialize();
/* Clear the display */
stm3210e_lcdclear();
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)
{
stm3210e_setpower(&g_lcddev.dev, 0);
stm32_deselectlcd();
}
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