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author | Joel Challis <git@zvecr.com> | 2020-05-03 01:25:39 +0100 |
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committer | GitHub <noreply@github.com> | 2020-05-03 01:25:39 +0100 |
commit | 5f82b0782f90645eee5926691dcc0ec617d0dff4 (patch) | |
tree | a741b6b432d31c477d3781bde487b13ffb2b3d8a /tmk_core/ring_buffer.h | |
parent | 2e6959ed874f19a5db9ee2b4db08c2bc9ec815d2 (diff) | |
download | qmk_firmware-5f82b0782f90645eee5926691dcc0ec617d0dff4.tar.gz |
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 6bea3509b..25fab638e 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; |