diff options
author | Joel Challis <git@zvecr.com> | 2020-05-03 01:25:39 +0100 |
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committer | Florian Didron <fdidron@users.noreply.github.com> | 2020-06-12 17:00:27 +0900 |
commit | b5ca1f6ec6bb7c6a65df29a7770fc3bb85601b6c (patch) | |
tree | b5d98c73709ca672e47acba55d3cde590e0cb4b4 /tmk_core/ring_buffer.h | |
parent | a6f9c9c8679c0cf71a4acf8aba8bffc527f6b57f (diff) |
Initial vusb console support (#8559)
Diffstat (limited to 'tmk_core/ring_buffer.h')
-rw-r--r-- | tmk_core/ring_buffer.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/tmk_core/ring_buffer.h b/tmk_core/ring_buffer.h index 6bea3509b3..25fab638eb 100644 --- a/tmk_core/ring_buffer.h +++ b/tmk_core/ring_buffer.h @@ -3,21 +3,26 @@ /*-------------------------------------------------------------------- * Ring buffer to store scan codes from keyboard *------------------------------------------------------------------*/ -#define RBUF_SIZE 32 +#ifndef RBUF_SIZE +# define RBUF_SIZE 32 +#endif #include <util/atomic.h> +#include <stdint.h> +#include <stdbool.h> static uint8_t rbuf[RBUF_SIZE]; static uint8_t rbuf_head = 0; static uint8_t rbuf_tail = 0; -static inline void rbuf_enqueue(uint8_t data) { +static inline bool rbuf_enqueue(uint8_t data) { + bool ret = false; ATOMIC_BLOCK(ATOMIC_RESTORESTATE) { uint8_t next = (rbuf_head + 1) % RBUF_SIZE; if (next != rbuf_tail) { rbuf[rbuf_head] = data; rbuf_head = next; - } else { - print("rbuf: full\n"); + ret = true; } } + return ret; } static inline uint8_t rbuf_dequeue(void) { uint8_t val = 0; |