LPC17 LCD driver is code complete and in need of testing

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5788 42af7a65-404d-4744-a932-0658087f49c3

configs/open1788/knsh/defconfig

@@ -191,7 +191,7 @@ CONFIG_LPC17_GPDMA=y
 #
 # SDIO Configuration
 #
-# CONFIG_SDIO_DMA is not defined
+# CONFIG_SDIO_DMA is not set
 # CONFIG_SDIO_WIDTH_D1_ONLY is not set
 
 #

configs/open1788/nsh/defconfig

@@ -185,7 +185,7 @@ CONFIG_LPC17_GPDMA=y
 #
 # SDIO Configuration
 #
-# CONFIG_SDIO_DMA is not defined
+# CONFIG_SDIO_DMA is not set
 # CONFIG_SDIO_WIDTH_D1_ONLY is not set
 
 #

configs/open1788/src/lpc17_boardinitialize.c

@@ -48,6 +48,7 @@
 #include "up_internal.h"
 
 #include "lpc17_emc.h"
+#include "lpc17_gpio.h"
 
 #include "open1788.h"
 
@@ -106,6 +107,14 @@ void lpc17_boardinitialize(void)
 #ifdef CONFIG_ARCH_LEDS
   up_ledinit();
 #endif
+
+  /* Enable the LCD backlight (unless we can defer this to a later
+   * initialization phase.
+   */
+
+#if defined(CONFIG_LPC17_LCD) && !defined(CONFIG_BOARD_INITIALIZE)
+  lpc17_configgpio(GPIO_LCD_BL);
+#endif
 }
 
 /****************************************************************************
@@ -124,6 +133,12 @@ void lpc17_boardinitialize(void)
 #ifdef CONFIG_BOARD_INITIALIZE
 void board_initialize(void)
 {
+  /* Enable the LCD backlight */
+
+#ifdef CONFIG_LPC17_LCD
+  lpc17_configgpio(GPIO_LCD_BL);
+#endif
+
   /* Perform NSH initialization here instead of from the NSH.  This
    * alternative NSH initialization is necessary when NSH is ran in user-space
    * but the initialization function must run in kernel space.

configs/open1788/src/open1788.h

@@ -111,6 +111,11 @@
 
 #define GPIO_SD_CD   (GPIO_INTBOTH | GPIO_PULLUP | GPIO_PORT0 | GPIO_PIN13)
 
+/* LCD ******************************************************************************/
+/* Backlight enable, P2[1].  Initial state is ON */
+
+#define GPIO_LCD_BL  (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT2 | GPIO_PIN1)
+
 /************************************************************************************
  * Public Types
  ************************************************************************************/