X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=boards%2Fsam3n-ek%2Fhw%2Fhw_lcd.h;h=89b4fa2ad5e920e0c4f8e44bf073da4d065e5e15;hb=f6583713e24d19800f93733fb5adba6a8408b6f5;hp=8aaacee9e07ec4378c4ed0924ba91c98917b8c45;hpb=42c64eab961cf2370a2e75358ff5e77162544b7d;p=bertos.git

diff --git a/boards/sam3n-ek/hw/hw_lcd.h b/boards/sam3n-ek/hw/hw_lcd.h
index 8aaacee9..89b4fa2a 100644
--- a/boards/sam3n-ek/hw/hw_lcd.h
+++ b/boards/sam3n-ek/hw/hw_lcd.h
@@ -33,27 +33,46 @@
  * \brief Atmel SAM3N-EK testcase
  *
  * \author Luca Ottaviano <lottaviano@develer.com>
+ * \author Daniele Basile <asterix@develer.com>
  */
 
+#ifndef HW_LCD_H
+#define HW_LCD_H
+
+#include <io/cm3.h>
+
+#include <cpu/attr.h>
+#include <cpu/types.h>
+
 #define LCD_BACKLIGHT_MAX  15
 #define LCD_BACKLIGHT_PIN  BV(13)    // Port C
 #define LCD_SPICLOCK       12000000  // Minimum cycle len = 80 ns according specs
 
-#define LCD_BACKLIGHT_INIT() \
-	do { \
-		PIOC_OER = LCD_BACKLIGHT_PIN; \
-		PIOC_SODR = LCD_BACKLIGHT_PIN; \
-		PIOC_PER = LCD_BACKLIGHT_PIN; \
-	} while(0)
 
 #define LCD_BACKLIGHT_LEVEL_UP() \
 	do \
 	{ \
 		PIOC_CODR = LCD_BACKLIGHT_PIN; \
-		PIOC_CODR = LCD_BACKLIGHT_PIN; \
-		PIOC_CODR = LCD_BACKLIGHT_PIN; \
-		PIOC_SODR = LCD_BACKLIGHT_PIN; \
+		NOP;NOP;NOP;NOP;NOP; \
 		PIOC_SODR = LCD_BACKLIGHT_PIN; \
+		NOP;NOP;NOP;NOP;NOP; \
+	} while(0)
+
+
+INLINE void lcd_setBacklight(uint8_t level)
+{
+	if (level > LCD_BACKLIGHT_MAX)
+		level = LCD_BACKLIGHT_MAX;
+
+	for (uint8_t i = level; i <= LCD_BACKLIGHT_MAX; i++)
+		LCD_BACKLIGHT_LEVEL_UP();
+}
+
+#define LCD_BACKLIGHT_INIT() \
+	do { \
+		PIOC_OER = LCD_BACKLIGHT_PIN; \
 		PIOC_SODR = LCD_BACKLIGHT_PIN; \
+		PIOC_PER = LCD_BACKLIGHT_PIN; \
 	} while(0)
 
+#endif /* HW_LCD_H */