From a6184be79e3918764d5e683796afbd8e8ccba018 Mon Sep 17 00:00:00 2001 From: Michal Idziorek Date: Mon, 18 May 2015 09:20:01 +0200 Subject: fifo through ringbuffer(stdin) and vt52(stdout) finally working! --- kernel/ringbuffer.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 kernel/ringbuffer.h (limited to 'kernel/ringbuffer.h') 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 +#include + +// 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 -- cgit v1.2.3