From: asterix <asterix@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Fri, 5 Nov 2010 10:50:26 +0000 (+0000)
Subject: Add headerguard, use nops to wait. Define setbacklite function to change the ligth... 
X-Git-Tag: 2.6.0~5^2~13
X-Git-Url: https://codewiz.org/gitweb?p=bertos.git;a=commitdiff_plain;h=35b2de49e2b372c66e61457c3ec007c777e2393b

Add headerguard, use nops to wait. Define setbacklite function to change the ligth level.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4507 38d2e660-2303-0410-9eaa-f027e97ec537
---

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 */