From 5466218a5f9fb3d46f608806f222fcc99a306a4b Mon Sep 17 00:00:00 2001
From: Jakob Odersky <jodersky@gmail.com>
Date: Mon, 17 Mar 2014 15:53:45 +0100
Subject: no time scheduler

---
 main.c | 81 +++++++++++++++++++++++++-----------------------------------------
 1 file changed, 31 insertions(+), 50 deletions(-)

(limited to 'main.c')

diff --git a/main.c b/main.c
index a2c8827..c4dadee 100644
--- a/main.c
+++ b/main.c
@@ -1,76 +1,57 @@
 #include <stddef.h>
 #include <stdio.h>
 #include <avr/pgmspace.h>
-#include <sched/sched.h>
-#include <time/timer.h>
-#include <bug/panic.h>
-#include <bug/debug.h>
-#include <tshield/tshield.h>
-#include <collection/list.h>
-#include <serial/serial.h>
-#include "shell.h"
+#include <avr/interrupt.h>
+#include "task/task.h"
+#include "task/sched.h"
+#include "bug/panic.h"
+#include "bug/debug.h"
+#include "mcu/task/context.h"
+#include "tshield/tshield.h"
 
 #define WAIT_CYCLES(cycles) for (volatile unsigned long i = 0; i < cycles; ++i) {}
 
-static struct list_head frozen = LIST_HEAD_INIT(frozen);
+struct list_head frozen = LIST_HEAD_INIT(frozen);
+
 void freeze() __attribute__ ( ( naked ) );
 void freeze() {
-  cli();
-  SAVE_CONTEXT();
-  sleep_on(&frozen);
+  context_save();
+  sleep_queue(&frozen);
   schedule();
-  RESTORE_CONTEXT();
-  sei();
-  asm volatile ( "ret" );
-}
-
-void wake() __attribute__ ( ( naked ) );
-void wake() {
-  cli();
-  SAVE_CONTEXT();
-  wake_all(&frozen);
-  RESTORE_CONTEXT();
-  sei();
-  asm volatile ( "ret" );
+  context_restore();
 }
 
-
 void blink( char id) {
   while(1) {
-    debug_led(id,1);
-    sleep(id * 300);
-    debug_led(id,0);
-    sleep(id * 300);
+    debug_led(id - 1,1);
+    WAIT_CYCLES((long) id * 30000);
+    debug_led(id - 1,0);
+    WAIT_CYCLES((long) id * 30000);
+    freeze();
   }
-}
-
-
 
-#define READ_BUFFER_SIZE 64
-void read(char id) {
-  serial_init(115200);
-  stdout = &serial_out;
-  stdin = &serial_in;
-  shell();
+  panic();
 }
 
-DECLARE_TASK(task1, STACK_SIZE, blink);
-DECLARE_TASK(task2, STACK_SIZE, blink);
-DECLARE_TASK(task3, STACK_SIZE, blink);
-DECLARE_TASK(task4, STACK_SIZE, read);
+
+DECLARE_TASK(task1, DEFAULT_STACK_SIZE, blink, 1);
+DECLARE_TASK(task2, DEFAULT_STACK_SIZE, blink, 2);
+DECLARE_TASK(task3, DEFAULT_STACK_SIZE, blink, 3);
+DECLARE_TASK(task4, DEFAULT_STACK_SIZE, blink, 4);
 
 
 int main(int argc, char *argv[]) {
   cli();
   tshield_init();
-  timer_init();
-
-  spawn(&task1, 1);
-  spawn(&task2, 2);
-  spawn(&task3, 3);
-  spawn(&task4, 4);
+  
 
-  timer_start();
+  spawn(&task1);
+  spawn(&task2);
+  spawn(&task3);
+  spawn(&task4);
+  
+  sei();
   sched_init();
+  panic(); //should never reach here
   while(1){}
 }
-- 
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