fifo through ringbuffer(stdin) and vt52(stdout) finally working!

1 files changed, 27 insertions, 0 deletions

diff --git a/kernel/ringbuffer.h b/kernel/ringbuffer.h
new file mode 100644
index 0000000..c79fdcf
--- /dev/null
+++ b/kernel/ringbuffer.h
@@ -0,0 +1,27 @@
+#ifndef RINGBUFFER_H
+#define RINGBUFFER_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+// Simple FIRST IN FIRST OUT
+// requires kballoc - block allocation
+typedef volatile struct ringbuffer_struct
+{
+    uint32_t size;
+    uint32_t front;
+    uint32_t back;
+
+    uint8_t *data;
+
+}ringbuffer;
+
+// create new fifo of given size (in blocks)
+ringbuffer ringbuffer_init(uint32_t blocks); 
+
+// true on success
+bool	ringbuffer_put(ringbuffer*,uint8_t);
+uint8_t ringbuffer_get(ringbuffer*);	    // non-blocking please check first
+bool	ringbuffer_has(ringbuffer*);	    // check if somehting waiting?
+
+#endif