From b119a2454b2cfd1a9d7f98e3c438d7476c822f79 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 6 Feb 2013 03:12:48 +0000
Subject: added blink targets for ledmatrix

git-svn-id: https://svn.spreadspace.org/avr/trunk@126 aa12f405-d877-488e-9caf-2d797e2a1cc7
---
 usb-i2c-sl018/ledmatrix.c | 105 ++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 87 insertions(+), 18 deletions(-)

diff --git a/usb-i2c-sl018/ledmatrix.c b/usb-i2c-sl018/ledmatrix.c
index f0b4ba8..c5d729a 100644
--- a/usb-i2c-sl018/ledmatrix.c
+++ b/usb-i2c-sl018/ledmatrix.c
@@ -34,52 +34,106 @@
 
 ledmatrix_mode_t mode = off;
 
-void ledmatrix_off(void)
+void ledmatrix_start_timer(void)
+{
+  TCCR3A = 0;                             // prescaler 1:1024, WGM = 4 (CTC)
+  TCCR3B = 1<<WGM32 | 1<<CS32 | 1<<CS30;  //
+  OCR3A = 1561;                           // (1+1561)*1024 = 1599488 -> ~100 ms @ 16 MHz
+  TCNT3 = 0;
+  TIMSK3 = 1<<OCIE3A;
+}
+
+void ledmatrix_stop_timer(void)
+{
+  TCCR3B = 0;
+  TIMSK3 = 0;
+}
+
+void ledmatrix_off_init(void)
 {  
   LEDMATRIX_PORT = LEDMATRIX_MASK;
   LEDMATRIX_PORT |= 1<<LEDMATRIX_RED | 1<<LEDMATRIX_GREEN;
 }
 
-void ledmatrix_red(void)
+
+void ledmatrix_red_init(void)
 {
   LEDMATRIX_PORT = LEDMATRIX_MASK | 1<<LEDMATRIX_GREEN;
   LEDMATRIX_PORT &= ~(1<<LEDMATRIX_RED);
 }
 
-void ledmatrix_red_moving(void)
+
+void ledmatrix_red_moving_init(void)
+{
+
+}
+
+void ledmatrix_red_moving_handle(void)
 {
 
 }
 
-void ledmatrix_red_blink(void)
+
+void ledmatrix_red_blink_init(void)
 {
+  ledmatrix_red_init();
+  ledmatrix_start_timer();
+}
 
+void ledmatrix_red_blink_handle(void)
+{
+  LEDMATRIX_PORT ^= 1<<LEDMATRIX_RED;
 }
 
-void ledmatrix_green(void)
+
+void ledmatrix_green_init(void)
 {
   LEDMATRIX_PORT = LEDMATRIX_MASK | 1<<LEDMATRIX_RED;
   LEDMATRIX_PORT &= ~(1<<LEDMATRIX_GREEN);
 }
 
-void ledmatrix_green_moving(void)
+
+void ledmatrix_green_moving_init(void)
+{
+
+}
+
+void ledmatrix_green_moving_handle(void)
 {
 
 }
 
-void ledmatrix_green_blink(void)
+
+void ledmatrix_green_blink_init(void)
 {
+  ledmatrix_green_init();
+  ledmatrix_start_timer();
+}
 
+void ledmatrix_green_blink_handle(void)
+{
+  LEDMATRIX_PORT ^= 1<<LEDMATRIX_GREEN;
 }
 
-void ledmatrix_rg_moving(void)
+
+void ledmatrix_rg_moving_init(void)
 {
+}
 
+void ledmatrix_rg_moving_handle(void)
+{
 }
 
-void ledmatrix_rg_blink(void)
+
+void ledmatrix_rg_blink_init(void)
 {
+  ledmatrix_red_init();
+  ledmatrix_start_timer();
+}
 
+void ledmatrix_rg_blink_handle(void)
+{
+  LEDMATRIX_PORT ^= ~(LEDMATRIX_MASK);
 }
 
 
@@ -92,17 +146,32 @@ void init_ledmatrix(void)
 void ledmatrix(ledmatrix_mode_t m)
 {
   mode = m;
+  ledmatrix_stop_timer();
 
   switch(mode)
   {
-  case off: ledmatrix_off(); break;
-  case red: ledmatrix_red(); break;
-  case red_moving: ledmatrix_red_moving(); break;
-  case red_blink: ledmatrix_red_blink(); break;
-  case green: ledmatrix_green(); break;
-  case green_moving: ledmatrix_green_moving(); break;
-  case green_blink: ledmatrix_green_blink(); break;
-  case rg_moving: ledmatrix_rg_moving(); break;
-  case rg_blink: ledmatrix_rg_blink(); break;
+  case off: ledmatrix_off_init(); break;
+  case red: ledmatrix_red_init(); break;
+  case red_moving: ledmatrix_red_moving_init(); break;
+  case red_blink: ledmatrix_red_blink_init(); break;
+  case green: ledmatrix_green_init(); break;
+  case green_moving: ledmatrix_green_moving_init(); break;
+  case green_blink: ledmatrix_green_blink_init(); break;
+  case rg_moving: ledmatrix_rg_moving_init(); break;
+  case rg_blink: ledmatrix_rg_blink_init(); break;
+  }
+}
+
+ISR(TIMER3_COMPA_vect)
+{
+  switch(mode)
+  {
+  case red_moving: ledmatrix_red_moving_handle(); break;
+  case red_blink: ledmatrix_red_blink_handle(); break;
+  case green_moving: ledmatrix_green_moving_handle(); break;
+  case green_blink: ledmatrix_green_blink_handle(); break;
+  case rg_moving: ledmatrix_rg_moving_handle(); break;
+  case rg_blink: ledmatrix_rg_blink_handle(); break;
+  default: break;
   }
 }
-- 
cgit v1.2.3