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In LPC1788 24-bit color mode, we need to tell NX that the resolution if 32 bpp; Add interfaces to control Open1788 backlight

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5798 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2013-03-28 17:12:11 +00:00
parent 4be75294ee
commit a553ec0a34
4 changed files with 66 additions and 7 deletions
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3
arch/Kconfig
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@ -103,7 +103,7 @@ source arch/x86/Kconfig
source arch/z16/Kconfig
source arch/z80/Kconfig
comment "External Memory Configuration"
menu "External Memory Configuration"
config ARCH_HAVE_EXTNAND
bool
@ -243,6 +243,7 @@ config ARCH_EXTSRAM1HEAP
Add external SRAM Bank 1 into the heap.
endif
endmenu
comment "Architecture Options"

13
arch/arm/src/lpc17xx/Kconfig
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@ -639,6 +639,19 @@ config LPC17_LCD_REFRESH_FREQ
---help---
LCD refesh rate (Hz)
config LPC17_LCD_BACKLIGHT
bool "Enable backlight"
default y
---help---
Enable backlight support. If LPC17_LCD_BACKLIGHT is selected, then
the board-specific logic must provide this lpc17_backlight()
interface so that the LCD driver can turn the backlight on and off
as necessary. You should select this option and implement
lpc17_backlight() if your board provides GPIO control over the
backlight. This interface provides only ON/OFF control of the
backlight. If you want finer control over the backlight level (for
example, using PWM), then this interface would need to be extended.
config LPC17_LCD_TFTPANEL
bool "TFT Panel"
default y

37
arch/arm/src/lpc17xx/lpc17_lcd.c
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@ -523,9 +523,7 @@ int up_fbinitialize(void)
/* Turn on LCD clock */
regval = getreg32(LPC17_SYSCON_PCONP);
regval |= SYSCON_PCONP_PCLCD;
putreg32(regval, LPC17_SYSCON_PCONP);
modifyreg32(LPC17_SYSCON_PCONP, 0, SYSCON_PCONP_PCLCD);
/* Disable the cursor */
@ -699,6 +697,11 @@ int up_fbinitialize(void)
regval |= LCD_CTRL_LCDPWR;
putreg32(regval, LPC17_LCD_CTRL);
#ifdef CONFIG_LPC17_LCD_BACKLIGHT
/* Turn on the back light */
lpc17_backlight(true);
#endif
return OK;
}
@ -740,7 +743,33 @@ FAR struct fb_vtable_s *up_fbgetvplane(int vplane)
void fb_uninitialize(void)
{
gdbg("Not implemented!\n");
uint32_t regval;
int i;
/* We assume there is only one use of the LCD and so we do not need to
* worry about mutually exclusive access to the LCD hardware.
*/
#ifdef CONFIG_LPC17_LCD_BACKLIGHT
/* Turn off the back light */
lpc17_backlight(false);
#endif
/* Disable the LCD controller */
regval = getreg32(LPC17_LCD_CTRL);
regval &= ~LCD_CTRL_LCDPWR;
putreg32(regval, LPC17_LCD_CTRL);
for (i = LPC17_LCD_PWRDIS_DELAY; i; i--);
regval &= ~LCD_CTRL_LCDEN;
putreg32(regval, LPC17_LCD_CTRL);
/* Turn off clocking to the LCD. modifyreg32() can do this atomically. */
modifyreg32(LPC17_SYSCON_PCONP, SYSCON_PCONP_PCLCD, 0);
return OK;
}

20
arch/arm/src/lpc17xx/lpc17_lcd.h
View File

@ -41,6 +41,9 @@
************************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <nuttx/nx/nxglib.h>
#include "chip/lpc17_lcd.h"
@ -81,7 +84,7 @@
# define LPC17_BPP 16
# define LPC17_COLOR_FMT FB_FMT_Y16
#elif defined(CONFIG_LPC17_LCD_BPP24)
# define LPC17_BPP 24
# define LPC17_BPP 32 /* Only 24 of 32 bits used for RGB */
# define LPC17_COLOR_FMT FB_FMT_RGB24
# ifndef CONFIG_LPC17_LCD_TFTPANEL
# error "24 BPP is only available for a TFT panel"
@ -164,7 +167,7 @@
*/
/************************************************************************************
* Name: lpc17_lcdclear
* Name: lpc17_lcdclear
*
* Description:
* This is a non-standard LCD interface just for the LPC17xx. Clearing the display
@ -176,4 +179,17 @@
void lpc17_lcdclear(nxgl_mxpixel_t color);
/************************************************************************************
* Name: lpc17_backlight
*
* Description:
* If CONFIG_LPC17_LCD_BACKLIGHT is defined, then the board-specific logic must
* provide this interface to turn the backlight on and off.
*
************************************************************************************/
#ifdef CONFIG_LPC17_LCD_BACKLIGHT
void lpc17_backlight(bool blon);
#endif
#endif /* __ARCH_ARM_SRC_LPC17XX_LPC17_LCD_H */