X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=Scan%2FISSILed%2Fled_scan.c;h=a091b8624d3788528618ef42fe9b25d64add8272;hb=074134c47442fa28559598209e3d7d3f30326177;hp=8a92b768c67122b4b3e69b5dd037cb550a1f48d7;hpb=a10afbcc6aa52ef7ec0150802126a2efa053e7a8;p=kiibohd-controller.git

diff --git a/Scan/ISSILed/led_scan.c b/Scan/ISSILed/led_scan.c
index 8a92b76..a091b86 100644
--- a/Scan/ISSILed/led_scan.c
+++ b/Scan/ISSILed/led_scan.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2014-2015 by Jacob Alexander
+/* Copyright (C) 2014-2016 by Jacob Alexander
  *
  * This file is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -406,8 +406,14 @@ inline void LED_setup()
 	// Set default brightness
 	LED_sendPage( (uint8_t*)LED_defaultBrightness1, sizeof( LED_defaultBrightness1 ), 0 );
 
-	// Disable Software shutdown of ISSI chip
-	LED_writeReg( 0x0A, 0x01, 0x0B );
+	// Do not disable software shutdown of ISSI chip unless current is high enough
+	// Require at least 150 mA
+	// May be enabled/disabled at a later time
+	if ( Output_current_available() >= 150 )
+	{
+		// Disable Software shutdown of ISSI chip
+		LED_writeReg( 0x0A, 0x01, 0x0B );
+	}
 }
 
 
@@ -633,17 +639,40 @@ uint8_t I2C_Send( uint8_t *data, uint8_t sendLen, uint8_t recvLen )
 
 
 // LED State processing loop
+unsigned int LED_currentEvent = 0;
 inline uint8_t LED_scan()
 {
+	// Check for current change event
+	if ( LED_currentEvent )
+	{
+		// TODO dim LEDs in low power mode instead of shutting off
+		if ( LED_currentEvent < 150 )
+		{
+			// Enable Software shutdown of ISSI chip
+			LED_writeReg( 0x0A, 0x00, 0x0B );
+		}
+		else
+		{
+			// Disable Software shutdown of ISSI chip
+			LED_writeReg( 0x0A, 0x01, 0x0B );
+		}
 
-	// I2C Busy
-	// S & I2C_S_BUSY
-	//I2C_S_BUSY
+		LED_currentEvent = 0;
+	}
 
 	return 0;
 }
 
 
+// Called by parent Scan Module whenver the available current has changed
+// current - mA
+void LED_currentChange( unsigned int current )
+{
+	// Delay action till next LED scan loop (as this callback sometimes occurs during interrupt requests)
+	LED_currentEvent = current;
+}
+
+
 
 // ----- Capabilities -----