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sam3u LCD driver is code complete (but untested)

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2619 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-04-20 02:20:42 +00:00
parent f803ab63e8
commit 7609c482d4
4 changed files with 507 additions and 31 deletions
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4
configs/README.txt
View File

@ -522,6 +522,10 @@ defconfig -- This is a configuration file similar to the Linux
By default, NX builds to use a framebuffer driver (see
include/nuttx/fb.h). If this option is defined, NX will
build to use an LCD driver (see include/nuttx/lcd.h).
CONFIG_LCD_MAXPOWER - The full-on power setting for an LCD
device.
CONFIG_LCD_MAXCONTRAST - The maximum contrast value for an
LCD device.
CONFIG_NX_MOUSE
Build in support for mouse input.
CONFIG_NX_KBD

4
configs/sam3u-ek/nx/defconfig
View File

@ -664,6 +664,8 @@ CONFIG_USBSTRG_REMOVABLE=y
# By default, NX builds to use a framebuffer driver (see
# include/nuttx/fb.h). If this option is defined, NX will
# build to use an LCD driver (see include/nuttx/lcd.h).
# CONFIG_LCD_MAXPOWER - The full-on power setting for an LCD device.
# CONFIG_LCD_MAXCONTRAST - The maximum contrast value for an LCD device.
# CONFIG_NX_MOUSE
# Build in support for mouse input
# CONFIG_NX_KBD
@ -711,6 +713,8 @@ CONFIG_NX_DISABLE_24BPP=y
CONFIG_NX_DISABLE_32BPP=y
CONFIG_NX_PACKEDMSFIRST=n
CONFIG_NX_LCDDRIVER=y
CONFIG_LCD_MAXPOWER=31
CONFIG_LCD_MAXCONTRAST=1
CONFIG_NX_MOUSE=n
CONFIG_NX_KBD=n
#CONFIG_NXTK_BORDERWIDTH=4

14
configs/sam3u-ek/src/sam3uek_internal.h
View File

@ -57,6 +57,11 @@
#define LCD_BASE SAM3U_EXTCS2_BASE
/* Touchscreen controller (TSC) */
#define CONFIG_TSC_ADS7843 1 /* ADS7843 present on board */
#define CONFIG_TSC_SPI 0 /* On SPI0 */
/* SAM3U-EK GPIO Pin Definitions ****************************************************/
/* LCD:
@ -131,6 +136,11 @@
#define GPIO_LCD_BKL (GPIO_OUTPUT|GPIO_CFG_DEFAULT|GPIO_OUTPUT_CLEAR|GPIO_PORT_PIOC|GPIO_PIN19)
/* Touchscreen controller (TSC) */
#define GPIO_TCS_IRQ (PIO_INPUT|GPIO_CFG_PULLUP|GPIO_PORT_PIOA|GPIO_PIN6)
#define GPIO_TCS_BUSY (PIO_INPUT|GPIO_CFG_PULLUP|GPIO_PORT_PIOA|GPIO_PIN6)
/* LEDs */
#define GPIO_LED0 (GPIO_OUTPUT|GPIO_CFG_DEFAULT|GPIO_PORT_PIOB|GPIO_OUTPUT_CLEAR|GPIO_PIN0)
@ -151,6 +161,10 @@
/* SPI Chip Selects */
/* Chip select pin connected to the touchscreen controller. */
#define GPIO_TSC_NPCS GPIO_SPI0_NPCS2_PC14
/************************************************************************************
* Public Types
************************************************************************************/

516
configs/sam3u-ek/src/up_lcd.c
View File

@ -114,11 +114,13 @@
#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/lcd.h>
#include <nuttx/rgbcolors.h>
#include <arch/irq.h>
@ -132,6 +134,20 @@
* Pre-processor Definitions
**************************************************************************************/
/* CONFIG_LCD_MAXCONTRAST -- must be defined and less than 32 */
#if !defined(CONFIG_LCD_MAXCONTRAST) || CONFIG_LCD_MAXCONTRAST < 1 || CONFIG_LCD_MAXCONTRAST > 31
# error "CONFIG_LCD_MAXCONTRAST must be defined in the range 1 to 31"
#endif
/* Configuration **********************************************************************/
#ifndef CONFIG_DEBUG
# undef CONFIG_DEBUG_GRAPHICS
#endif
/* Graphics Capbilities ***************************************************************/
/* LCD resolution */
#define SAM3UEK_XRES 320
@ -142,10 +158,119 @@
#define SAM3UEK_BPP 16
#define SAM3UEK_RGBFMT FB_FMT_RGB16_565
/* HX834x Definitions ****************************************************************/
/* HX834x register select */
#define HX843X_LCD_RS (1 << 1)
/* HX8347 ID code */
#define HX8347_CHIPID 0x47
/* HX8347 LCD Registers */
#define HX8347_R00H 0x00
#define HX8347_R01H 0x01
#define HX8347_R02H 0x02
#define HX8347_R03H 0x03
#define HX8347_R04H 0x04
#define HX8347_R05H 0x05
#define HX8347_R06H 0x06
#define HX8347_R07H 0x07
#define HX8347_R08H 0x08
#define HX8347_R09H 0x09
#define HX8347_R0AH 0x0a
#define HX8347_R0CH 0x0c
#define HX8347_R0DH 0x0d
#define HX8347_R0EH 0x0e
#define HX8347_R0FH 0x0f
#define HX8347_R10H 0x10
#define HX8347_R11H 0x11
#define HX8347_R12H 0x12
#define HX8347_R13H 0x13
#define HX8347_R14H 0x14
#define HX8347_R15H 0x15
#define HX8347_R16H 0x16
#define HX8347_R18H 0x18
#define HX8347_R19H 0x19
#define HX8347_R1AH 0x1a
#define HX8347_R1BH 0x1b
#define HX8347_R1CH 0x1c
#define HX8347_R1DH 0x1d
#define HX8347_R1EH 0x1e
#define HX8347_R1FH 0x1f
#define HX8347_R20H 0x20
#define HX8347_R21H 0x21
#define HX8347_R22H 0x22
#define HX8347_R23H 0x23
#define HX8347_R24H 0x24
#define HX8347_R25H 0x25
#define HX8347_R26H 0x26
#define HX8347_R27H 0x27
#define HX8347_R28H 0x28
#define HX8347_R29H 0x29
#define HX8347_R2AH 0x2a
#define HX8347_R2BH 0x2b
#define HX8347_R2CH 0x2c
#define HX8347_R2DH 0x2d
#define HX8347_R35H 0x35
#define HX8347_R36H 0x36
#define HX8347_R37H 0x37
#define HX8347_R38H 0x38
#define HX8347_R39H 0x39
#define HX8347_R3AH 0x3a
#define HX8347_R3BH 0x3b
#define HX8347_R3CH 0x3c
#define HX8347_R3DH 0x3d
#define HX8347_R3EH 0x3e
#define HX8347_R40H 0x40
#define HX8347_R41H 0x41
#define HX8347_R42H 0x42
#define HX8347_R43H 0x43
#define HX8347_R44H 0x44
#define HX8347_R45H 0x45
#define HX8347_R46H 0x46
#define HX8347_R47H 0x47
#define HX8347_R48H 0x48
#define HX8347_R49H 0x49
#define HX8347_R4AH 0x4a
#define HX8347_R4BH 0x4b
#define HX8347_R4CH 0x4c
#define HX8347_R4DH 0x4d
#define HX8347_R4EH 0x4e
#define HX8347_R4FH 0x4f
#define HX8347_R50H 0x50
#define HX8347_R51H 0x51
#define HX8347_R64H 0x64
#define HX8347_R65H 0x65
#define HX8347_R66H 0x66
#define HX8347_R67H 0x67
#define HX8347_R70H 0x70
#define HX8347_R72H 0x72
#define HX8347_R90H 0x90
#define HX8347_R91H 0x91
#define HX8347_R93H 0x93
#define HX8347_R94H 0x94
#define HX8347_R95H 0x95
/**************************************************************************************
* Private Type Definition
**************************************************************************************/
/* This structure describes the state of this driver */
struct sam3u_dev_s
{
/* Publically visible device structure */
struct lcd_dev_s dev;
/* Private device state */
uint8_t power; /* The current power setting */
};
/**************************************************************************************
* Private Function Protototypes
**************************************************************************************/
@ -155,6 +280,21 @@
static void sam3u_putreg(uint16_t reg, uint16_t data);
static uint16_t sam3u_getreg(uint16_t reg);
/* Misc. LCD Helper Functions */
static void sam3u_setcursor(fb_coord_t x, fb_coord_t y);
static inline void sam3u_wrsetup(void);
static inline void sam3u_wrram(uint16_t color);
static inline uint16_t sam3u_rdram(void);
static void sam3u_lcdon(void);
static void sam3u_lcdoff(void);
#ifdef CONFIG_DEBUG_GRAPHICS
static void sam3u_dumpreg(uint8_t startreg, uint8_t endreg);
#else
# define sam3u_dumpreg(startreg,endreg)
#endif
/* LCD Data Transfer Methods */
static int sam3u_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
@ -207,7 +347,7 @@ static uint16_t g_runbuffer[SAM3UEK_XRES];
/* This structure describes the overall LCD video controller */
static struct fb_videoinfo_s g_videoinfo =
static const struct fb_videoinfo_s g_videoinfo =
{
.fmt = SAM3UEK_RGBFMT, /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
.xres = SAM3UEK_XRES, /* Horizontal resolution in pixel columns */
@ -217,7 +357,7 @@ static struct fb_videoinfo_s g_videoinfo =
/* This is the standard, NuttX Plane information object */
static struct lcd_planeinfo_s g_planeinfo =
static const struct lcd_planeinfo_s g_planeinfo =
{
.putrun = sam3u_putrun, /* Put a run into LCD memory */
.getrun = sam3u_getrun, /* Get a run from LCD memory */
@ -227,22 +367,25 @@ static struct lcd_planeinfo_s g_planeinfo =
/* This is the standard, NuttX LCD driver object */
static struct lcd_dev_s g_lcddev_s =
static struct sam3u_dev_s g_lcddev_s =
{
/* LCD Configuration */
.dev =
{
/* LCD Configuration */
.getvideoinfo = sam3u_getvideoinfo,
.getplaneinfo = sam3u_getplaneinfo,
.getvideoinfo = sam3u_getvideoinfo,
.getplaneinfo = sam3u_getplaneinfo,
/* LCD RGB Mapping -- Not supported */
/* Cursor Controls -- Not supported */
/* LCD RGB Mapping -- Not supported */
/* Cursor Controls -- Not supported */
/* LCD Specific Controls */
/* LCD Specific Controls */
.getpower = sam3u_getpower,
.setpower = sam3u_setpower,
.getcontrast = sam3u_getcontrast,
.setcontrast = sam3u_setcontrast,
.getpower = sam3u_getpower,
.setpower = sam3u_setpower,
.getcontrast = sam3u_getcontrast,
.setcontrast = sam3u_setcontrast,
},
};
/**************************************************************************************
@ -277,6 +420,128 @@ static uint16_t sam3u_getreg(uint16_t reg)
return getreg16(LCD_BASE + HX843X_LCD_RS);
}
/**************************************************************************************
* Name: sam3u_setcursor
*
* Description:
* Set the LCD cursor position.
*
**************************************************************************************/
static void sam3u_setcursor(fb_coord_t x, fb_coord_t y)
{
uint8_t x1;
uint8_t x2;
uint8_t y1;
uint8_t y2;
x1 = (uint8_t) x & 0xff;
x2 = ((uint16_t)x & 0xff00) >> 8;
y1 = (uint8_t) y & 0xff;
y2 = ((uint16_t)y & 0xff00) >> 8;
sam3u_putreg(HX8347_R02H, x2); /* column high */
sam3u_putreg(HX8347_R03H, x1); /* column low */
sam3u_putreg(HX8347_R06H, y2); /* row high */
sam3u_putreg(HX8347_R07H, y1); /* row low */
}
/**************************************************************************************
* Name: sam3u_wrsetup
*
* Description:
* Set up for a GRAM write operation.
*
**************************************************************************************/
static inline void sam3u_wrsetup(void)
{
putreg16(HX8347_R22H, LCD_BASE);
}
/**************************************************************************************
* Name: sam3u_wrram
*
* Description:
* Write to the 16-bit GRAM register
*
**************************************************************************************/
static inline void sam3u_wrram(uint16_t color)
{
putreg16(color, LCD_BASE + HX843X_LCD_RS);
}
/**************************************************************************************
* Name: sam3u_rdram
*
* Description:
* Read from the 16-bit GRAM register
*
**************************************************************************************/
static inline uint16_t sam3u_rdram(void)
{
return getreg16(LCD_BASE + HX843X_LCD_RS);
}
/**************************************************************************************
* Name: sam3u_lcdon
*
* Description:
* Turn the LCD on
*
**************************************************************************************/
static void sam3u_lcdon(void)
{
/* Display ON Setting */
sam3u_putreg(HX8347_R90H, 0x7f); /* SAP=0111 1111 */
sam3u_putreg(HX8347_R26H, 0x04); /* GON=0 DTE=0 D=01 */
up_mdelay(100);
sam3u_putreg(HX8347_R26H, 0x24); /* GON=1 DTE=0 D=01 */
sam3u_putreg(HX8347_R26H, 0x2c); /* GON=1 DTE=0 D=11 */
up_mdelay(100);
sam3u_putreg(HX8347_R26H, 0x3c); /* GON=1 DTE=1 D=11 */
}
/**************************************************************************************
* Name: sam3u_lcdoff
*
* Description:
* Turn the LCD off
*
**************************************************************************************/
static void sam3u_lcdoff(void)
{
sam3u_putreg(HX8347_R90H, 0x00); /* SAP=0000 0000 */
sam3u_putreg(HX8347_R26H, 0x00); /* GON=0 DTE=0 D=00 */
}
/**************************************************************************************
* Name: sam3u_dumpreg
*
* Description:
* Dump a range of LCD registers.
*
**************************************************************************************/
#ifdef CONFIG_DEBUG_GRAPHICS
static void sam3u_dumpreg(uint8_t startreg, uint8_t endreg)
{
uint16_t value;
uint8_t addr;
for (addr = startreg; addr <= endreg; addr++)
{
value = sam3u_getreg(addr);
printf("LCD %02x = %04x\n", addr, value);
}
}
#endif
/**************************************************************************************
* Name: sam3u_putrun
*
@ -294,7 +559,25 @@ static uint16_t sam3u_getreg(uint16_t reg)
static int sam3u_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
size_t npixels)
{
return -ENOSYS;
uint16_t *run = (uint16_t*)buffer;
unsigned int i;
/* Buffer must be provided and aligned to a 16-bit address boundary */
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
/* Set up for the write */
sam3u_setcursor(row, col);
sam3u_wrsetup();
/* Write the run to GRAM */
for (i = 0; i < npixels; i++)
{
sam3u_wrram(*run++);
}
return OK;
}
/**************************************************************************************
@ -314,7 +597,24 @@ static int sam3u_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffe
static int sam3u_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
size_t npixels)
{
return -ENOSYS;
uint16_t *run = (uint16_t*)buffer;
unsigned int i;
/* Buffer must be provided and aligned to a 16-bit address boundary */
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
/* Set up for the read */
sam3u_setcursor(row, col);
/* Read the run from GRAM */
for (i = 0; i < npixels; i++)
{
sam3u_wrram(*run++);
}
return OK;
}
/**************************************************************************************
@ -328,7 +628,9 @@ static int sam3u_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
static int sam3u_getvideoinfo(FAR struct lcd_dev_s *dev,
FAR struct fb_videoinfo_s *vinfo)
{
return -ENOSYS;
DEBUGASSERT(dev && vinfo);
memcpy(vinfo, &g_videoinfo, sizeof(struct fb_videoinfo_s));
return OK;
}
/**************************************************************************************
@ -342,35 +644,71 @@ static int sam3u_getvideoinfo(FAR struct lcd_dev_s *dev,
static int sam3u_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
FAR struct lcd_planeinfo_s *pinfo)
{
return -ENOSYS;
DEBUGASSERT(dev && pinfo);
memcpy(pinfo, &g_planeinfo, sizeof(struct lcd_planeinfo_s));
return OK;
}
/**************************************************************************************
* Name: sam3u_getpower
*
* Description:
* Get the LCD panel power status (0: full off - CONFIG_LCD_MAXPOWER:
* full on.
* 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 sam3u_getpower(struct lcd_dev_s *dev)
{
return -ENOSYS;
struct sam3u_dev_s *priv = (struct sam3u_dev_s *)dev;
DEBUGASSERT(dev);
return priv->power;
}
/**************************************************************************************
* Name: sam3u_setpower
*
* Description:
* Enable/disable LCD panel power (0: full off - CONFIG_LCD_MAXPOWERL:
* full on).
* Enable/disable LCD panel power (0: full off - CONFIG_LCD_MAXPOWERL: full on). On
* backlit LCDs, this setting may correspond to the backlight setting.
*
* LCD backlight is made of 4 white chip LEDs in parallel, driven by an AAT3194 charge
* pump, MN4. The AAT3194 is controlled by the SAM3U4E through a single line. Simple
* Serial Control (S2Cwire) interface, which permits to enable, disable, and set the
* LED drive current (LED brightness control) from a 32-level logarithmic scale. Four
* resistors R93/R94/R95/R96 are implemented for optional current limitation.
*
**************************************************************************************/
static int sam3u_setpower(struct lcd_dev_s *dev, int power)
{
return -ENOSYS;
struct sam3u_dev_s *priv = (struct sam3u_dev_s *)dev;
unsigned int i;
DEBUGASSERT(power <= CONFIG_LCD_MAXPOWER);
/* Switch off backlight */
sam3u_gpiowrite(GPIO_LCD_BKL, false);
/* For for at least 500uS to drain the charge pump */
up_udelay(500);
/* Set new backlight level by pumping "level" times */
for (i = 0; i < power; i++)
{
sam3u_gpiowrite(GPIO_LCD_BKL, false);
sam3u_gpiowrite(GPIO_LCD_BKL, false);
sam3u_gpiowrite(GPIO_LCD_BKL, false);
sam3u_gpiowrite(GPIO_LCD_BKL, true);;
sam3u_gpiowrite(GPIO_LCD_BKL, true);;
sam3u_gpiowrite(GPIO_LCD_BKL, true);;
}
priv->power = power;
return OK;
}
/**************************************************************************************
@ -407,14 +745,22 @@ static int sam3u_setcontrast(struct lcd_dev_s *dev, unsigned int contrast)
* Name: up_lcdinitialize
*
* Description:
* Initialize the LCD video hardware.
* 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)
{
#ifdef CONFIG_DEBUG_GRAPHICS
uint16_t hxregval;
#endif
uint32_t regval;
unsigned int i;
gvdbg("Initializing\n");
/* Enable LCD EXTCS2 pins */
sam3u_configgpio(GPIO_LCD_NCS2);
@ -450,22 +796,118 @@ int up_lcdinitialize(void)
/* Configure SMC CS2 */
regval = (4 << SMCCS_SETUP_NWESETUP_SHIFT) | (2 << SMCCS_SETUP_NCSWRSETUP_SHIFT) |
(4 << SMCCS_SETUP_NRDSETUP_SHIFT) | (2 << SMCCS_SETUP_NCSRDSETUP_SHIFT);
(4 << SMCCS_SETUP_NRDSETUP_SHIFT) | (2 << SMCCS_SETUP_NCSRDSETUP_SHIFT);
putreg32(regval, SAM3U_SMCCS_SETUP(2));
regval = (5 << SMCCS_PULSE_NWEPULSE_SHIFT) | (18 << SMCCS_PULSE_NCSWRPULSE_SHIFT) |
(5 << SMCCS_PULSE_RDPULSE_SHIFT) | (18 << SMCCS_PULSE_NCSRDPULSE_SHIFT);
(5 << SMCCS_PULSE_RDPULSE_SHIFT) | (18 << SMCCS_PULSE_NCSRDPULSE_SHIFT);
putreg32(regval, SAM3U_SMCCS_PULSE(2));
regval = (22 << SMCCS_CYCLE_NWECYCLE_SHIFT) | (22 << SMCCS_CYCLE_NRDCYCLE_SHIFT);
putreg32(regval, SAM3U_SMCCS_CYCLE(2));
regval = getreg32(SAM3U_SMCCS_MODE(2));
regval = getreg32(SAM3U_SMCCS_MODE(2));
regval &= ~(SMCCS_MODE_DBW_MASK | SMCCS_MODE_PMEN);
regval |= (SMCCS_MODE_READMODE) | (SMCCS_MODE_WRITEMODE) | (SMCCS_MODE_DBW_16BITS);
putreg32(regval, SAM3U_SMCCS_MODE(2));
return -ENOSYS;
/* Check HX8347 Chip ID */
#ifdef CONFIG_DEBUG_GRAPHICS
hxregval = sam3u_getreg(HX8347_R67H);
gvdbg("HX8347 chip ID: %04x\n", hxregval);
if (hxregval != HX8347_CHIPID)
{
gdbg("Bad HX8347 chip ID: %04x\n", hxregval);
return -ENODEV;
}
#endif
/* Initialize LCD controller (HX8347) -- Magic code from Atmel LCD example */
/* Start internal OSC */
sam3u_putreg(HX8347_R19H, 0x49); /* OSCADJ=10 0000 OSD_EN=1 60Hz */
sam3u_putreg(HX8347_R93H, 0x0C); /* RADJ=1100 */
/* Power on flow */
sam3u_putreg(HX8347_R44H, 0x4D); /* VCM=100 1101 */
sam3u_putreg(HX8347_R45H, 0x11); /* VDV=1 0001 */
sam3u_putreg(HX8347_R20H, 0x40); /* BT=0100 */
sam3u_putreg(HX8347_R1DH, 0x07); /* VC1=111 */
sam3u_putreg(HX8347_R1EH, 0x00); /* VC3=000 */
sam3u_putreg(HX8347_R1FH, 0x04); /* VRH=0100 */
sam3u_putreg(HX8347_R1CH, 0x04); /* AP=100 */
sam3u_putreg(HX8347_R1BH, 0x10); /* GASENB=0 PON=1 DK=0 XDK=0 DDVDH_TRI=0 STB=0 */
up_mdelay(50);
sam3u_putreg(HX8347_R43H, 0x80); /* Set VCOMG=1 */
up_mdelay(50);
/* Gamma for CMO 2.8 */
sam3u_putreg(HX8347_R46H, 0x95);
sam3u_putreg(HX8347_R47H, 0x51);
sam3u_putreg(HX8347_R48H, 0x00);
sam3u_putreg(HX8347_R49H, 0x36);
sam3u_putreg(HX8347_R4AH, 0x11);
sam3u_putreg(HX8347_R4BH, 0x66);
sam3u_putreg(HX8347_R4CH, 0x14);
sam3u_putreg(HX8347_R4DH, 0x77);
sam3u_putreg(HX8347_R4EH, 0x13);
sam3u_putreg(HX8347_R4FH, 0x4c);
sam3u_putreg(HX8347_R50H, 0x46);
sam3u_putreg(HX8347_R51H, 0x46);
/* 240x320 window setting */
sam3u_putreg(HX8347_R02H, 0x00); /* Column address start2 */
sam3u_putreg(HX8347_R03H, 0x00); /* Column address start1 */
sam3u_putreg(HX8347_R04H, 0x00); /* Column address end2 */
sam3u_putreg(HX8347_R05H, 0xef); /* Column address end1 */
sam3u_putreg(HX8347_R06H, 0x00); /* Row address start2 */
sam3u_putreg(HX8347_R07H, 0x00); /* Row address start1 */
sam3u_putreg(HX8347_R08H, 0x01); /* Row address end2 */
sam3u_putreg(HX8347_R09H, 0x3f); /* Row address end1 */
/* Display Setting */
sam3u_putreg(HX8347_R01H, 0x06); /* IDMON=0 INVON=1 NORON=1 PTLON=0 */
sam3u_putreg(HX8347_R16H, 0xc8); /* MY=1 MX=1 MV=0 BGR=1 */
sam3u_putreg(HX8347_R23H, 0x95); /* N_DC=1001 0101 */
sam3u_putreg(HX8347_R24H, 0x95); /* P_DC=1001 0101 */
sam3u_putreg(HX8347_R25H, 0xff); /* I_DC=1111 1111 */
sam3u_putreg(HX8347_R27H, 0x06); /* N_BP=0000 0110 */
sam3u_putreg(HX8347_R28H, 0x06); /* N_FP=0000 0110 */
sam3u_putreg(HX8347_R29H, 0x06); /* P_BP=0000 0110 */
sam3u_putreg(HX8347_R2AH, 0x06); /* P_FP=0000 0110 */
sam3u_putreg(HX8347_R2CH, 0x06); /* I_BP=0000 0110 */
sam3u_putreg(HX8347_R2DH, 0x06); /* I_FP=0000 0110 */
sam3u_putreg(HX8347_R3AH, 0x01); /* N_RTN=0000 N_NW=001 */
sam3u_putreg(HX8347_R3BH, 0x01); /* P_RTN=0000 P_NW=001 */
sam3u_putreg(HX8347_R3CH, 0xf0); /* I_RTN=1111 I_NW=000 */
sam3u_putreg(HX8347_R3DH, 0x00); /* DIV=00 */
sam3u_putreg(HX8347_R3EH, 0x38); /* SON=38h */
sam3u_putreg(HX8347_R40H, 0x0f); /* GDON=0Fh */
sam3u_putreg(HX8347_R41H, 0xf0); /* GDOF=F0h */
/* Set LCD backlight to FULL off */
sam3u_setpower(&g_lcddev_s.dev, LCD_FULL_OFF);
/* Fill the display memory with the color BLACK */
sam3u_setcursor(0, 0);
sam3u_wrsetup();
for (i = 0; i < (SAM3UEK_XRES * SAM3UEK_YRES); i++)
{
sam3u_wrram(RGB16_BLACK);
}
/* Turn the LCD on (but with the backlight off) */
sam3u_lcdon();
return OK;
}
/**************************************************************************************
@ -477,9 +919,10 @@ int up_lcdinitialize(void)
*
**************************************************************************************/
FAR struct lcd_dev_s *up_lcdgetdev(int lcdddev)
FAR struct lcd_dev_s *up_lcdgetdev(int lcddev)
{
return NULL;
gvdbg("lcddev: %d\n", lcddev);
return lcddev == 0 ? &g_lcddev_s.dev : NULL;
}
/**************************************************************************************
@ -492,6 +935,17 @@ FAR struct lcd_dev_s *up_lcdgetdev(int lcdddev)
void up_lcduninitialize(void)
{
/* Turn the LCD off */
sam3u_lcdoff();
/* Set LCD backlight to FULL off */
sam3u_setpower(&g_lcddev_s.dev, LCD_FULL_OFF);
/* Disable SMC peripheral clock */
putreg32((1 << SAM3U_PID_SMC), SAM3U_PMC_PCDR);
}