From 649d01e5c2162f152a9208c66fdcdff7483acafa Mon Sep 17 00:00:00 2001
From: Dobfek <dobfek@hotmail.com>
Date: Wed, 7 Sep 2011 23:25:33 +0200
Subject: [PATCH] Eco Display: Lower LCD freq at night(19h-08h), lowers current
 consumption by 30%.

---
 driver/display.c  | 20 ++++++++++++++++++++
 driver/display.h  |  4 +++-
 driver/timer.c    | 10 ++++++++++
 ezchronos.c       |  4 ++++
 include/project.h |  3 +++
 tools/config.py   |  8 +++++++-
 6 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/driver/display.c b/driver/display.c
index 2c8c97b..79b0ec8 100644
--- a/driver/display.c
+++ b/driver/display.c
@@ -610,3 +610,23 @@ void display_all_off(void)
 		lcdptr++;
 	}
 }
+
+#ifdef ECO_DISPLAY
+// *************************************************************************************************
+// @fn          eco_display
+// @brief       Lowers the display frequency at night(19h-08h)
+// @param       none
+// @return      none
+// *************************************************************************************************
+void eco_display(void)
+{
+	if((sTime.hour>8)&&(sTime.hour<19))
+	{
+	    LCDBCTL0 = (LCDDIV0 + LCDDIV1 + LCDDIV2) | (LCDPRE0 + LCDPRE1) | LCD4MUX | LCDON; //day mode 512Hz
+	}
+	else
+	{
+	    LCDBCTL0 = (LCDDIV0 + LCDDIV1 + LCDDIV2 + LCDDIV3) | (LCDPRE0 + LCDPRE1) | LCD4MUX | LCDON; //night mode, freq. from the original ti frimware 256Hz
+	}
+}
+#endif
\ No newline at end of file
diff --git a/driver/display.h b/driver/display.h
index 7326809..c48e320 100644
--- a/driver/display.h
+++ b/driver/display.h
@@ -370,5 +370,7 @@ extern u8 * itoa(u32 n, u8 digits, u8 blanks);
 extern u8 switch_seg(u8 line, u8 index1, u8 index2);
 
 void display_all_off(void);
-
+#ifdef ECO_DISPLAY 
+void eco_display(void); //ECO display
+#endif
 #endif // __DISPLAY_
diff --git a/driver/timer.c b/driver/timer.c
index bd59fe1..8250066 100644
--- a/driver/timer.c
+++ b/driver/timer.c
@@ -365,6 +365,16 @@ __interrupt void TIMER0_A0_ISR(void)
 		return;
 	}
 	
+	// -------------------------------------------------------------------
+	// Service modules that require 1/hour processing
+	if (sTime.drawFlag > 2) 
+	{
+		#ifdef ECO_DISPLAY	
+		request.flag.eco_display = 1; //ECO_display flag
+		#endif
+	}	
+		
+	
 	// -------------------------------------------------------------------
 	// Service modules that require 1/min processing
 	if (sTime.drawFlag >= 2) 
diff --git a/ezchronos.c b/ezchronos.c
index 5a2ab71..ff6e472 100644
--- a/ezchronos.c
+++ b/ezchronos.c
@@ -567,6 +567,10 @@ void wakeup_event(void)
 // *************************************************************************************************
 void process_requests(void)
 {
+#ifdef ECO_DISPLAY
+	// Change display freq when needed
+	if (request.flag.eco_display) eco_display();
+#endif	
 	// Do temperature measurement
 	if (request.flag.temperature_measurement) temperature_measurement(FILTER_ON);
 	
diff --git a/include/project.h b/include/project.h
index cb4f191..f4e08a3 100644
--- a/include/project.h
+++ b/include/project.h
@@ -127,6 +127,9 @@ typedef union
 #endif
 #ifdef CONFIG_STRENGTH
     u16 strength_buzzer 		: 1;    // 1 = Output buzzer from strength_data
+#endif
+#ifdef ECO_DISPLAY
+    u16 eco_display			: 1;	// 1 = LCD refresh freq is lower at night
 #endif
   } flag;
   u16 all_flags;            // Shortcut to all display flags (for reset)
diff --git a/tools/config.py b/tools/config.py
index ac86e38..24d0350 100755
--- a/tools/config.py
+++ b/tools/config.py
@@ -230,7 +230,13 @@ def rand_hw():
         "name": "Use PPT",
         "depends": [],
         "default": True}
-
+	
+	###IMPLEMENTED by Dobfek 2011-09-04
+DATA["ECO_DISPLAY"] = {
+	"name": "Economical display. Lower display frequency and -30% current consumption at night.",
+	"depends": [],
+	"default": False}
+			
 DATA["CONFIG_USE_SYNC_TOSET_TIME"] = {
 	"name": "Sync is the only way to set clocks data/time",
 	"depends": [],