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Initial vusb console support (#8559)

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This commit is contained in:
Joel Challis
2020-05-03 01:25:39 +01:00
committed by GitHub
parent 2e6959ed87
commit 5f82b0782f
9 changed files with 256 additions and 48 deletions
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13
tmk_core/ring_buffer.h
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@ -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;