From b6181e4a21b1bc3b5615604e175c6a297b661687 Mon Sep 17 00:00:00 2001
From: Jakob Odersky <jodersky@gmail.com>
Date: Thu, 3 Apr 2014 18:48:59 +0200
Subject: add uniform io interface

---
 main.c | 43 +++++++++++++++++++++++++++++++++++++------
 1 file changed, 37 insertions(+), 6 deletions(-)

(limited to 'main.c')

diff --git a/main.c b/main.c
index f8dde1e..0ed45da 100644
--- a/main.c
+++ b/main.c
@@ -9,26 +9,57 @@
 #include "task/lock.h"
 #include "task/idle.h"
 #include "time/clock.h"
-#include "io/usart.h"
+#include "io/io.h"
+#include "mcu/io/usart.h"
 #include "tshield/tshield.h"
-#include "mcu/task/context.h"
-#include "shell.h"
-
 #define IN_LENGTH 64
 
 #define WAIT_CYCLES(cycles) for (volatile unsigned long i = 0; i < cycles; ++i) {}
 
+void writer() {
+
+  char* buffer = "hello world";
+  size_t length = 11;
+
+
+  while(1) {
+    debug_led(1, 0);
+    WAIT_CYCLES(300000);
+    debug_led(1, 1);
+    write(&usart0, buffer, length);
+  }
+}
+
+void reader() {
+  char in;
+
+  while(1) {
+    debug_led(2, 0);
+    debug_led(3, 0);
+    if (read(&usart0, &in, 1) >= 0) {
+      debug_led(2, 1);
+    } else {
+      debug_led(3, 1);
+      WAIT_CYCLES(30000);
+    }
+    
+  }
+}
 
 DECLARE_TASK(task_idle, IDLE_STACK_SIZE, idle_entry, 0);
-DECLARE_TASK(task1, DEFAULT_STACK_SIZE, shell, 1);
+DECLARE_TASK(task1, DEFAULT_STACK_SIZE, writer, 1);
+DECLARE_TASK(task2, DEFAULT_STACK_SIZE, reader, 2);
 
 int main(int argc, char *argv[]) {
   cli();
   tshield_init();
-  usart_init(115200);
+
+  open(&usart0);
+  ioctl(&usart0, IOCTL_SET_BAUD, 115200);
 
   spawn_idle(&task_idle);
   spawn(&task1);
+  spawn(&task2);
 
   sei();
   clock_init(10, schedule);
-- 
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