everything, mostly, working

1 files changed, 0 insertions, 77 deletions

diff --git a/stm32/app/ring.c b/stm32/app/ring.c
deleted file mode 100644
index 973f345..0000000
--- a/stm32/app/ring.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#include "project.h"
-
-
-static inline size_t
-ring_next (volatile ring_t *r, size_t p)
-{
-  p++;
-
-  if (p >= r->size)
-    p -= r->size;
-
-  return p;
-}
-
-void
-ring_init (volatile ring_t *r, uint8_t *buf, size_t len)
-{
-  r->data = buf;
-  r->size = len;
-  r->write = 0;
-  r->read = 0;
-}
-
-int
-ring_write_byte (volatile ring_t *r, uint8_t c)
-{
-  size_t n = ring_next (r, r->write);
-
-  if (n == r->read)
-    return -EAGAIN;
-
-  r->data[r->write] = c;
-
-  r->write = n;
-
-  return 0;
-}
-
-
-int
-ring_read_byte (volatile ring_t *r, uint8_t *c)
-{
-  size_t n = ring_next (r, r->read);
-
-  if (r->read == r->write)
-    return -EAGAIN;
-
-  *c = r->data[r->read];
-  r->read = n;
-
-  return 0;
-}
-
-int
-ring_write (volatile ring_t *r, uint8_t *buf, size_t len, int blocking)
-{
-  while (len--) {
-    if (blocking) {
-      while (ring_write_byte (r, *buf));
-
-      buf++;
-    } else {
-      if (ring_write_byte (r, * (buf++)))
-        return -EAGAIN;
-    }
-  }
-
-  return 0;
-}
-
-
-
-int
-ring_empty (volatile ring_t *r)
-{
-  return (r->read == r->write) ? 1 : 0;
-}