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Move FIFOBuffer to src dir

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jacob.eva 2024-09-04 17:35:07 +01:00
parent 52629cb1bf
commit 6035e1a2c2
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3 changed files with 155 additions and 165 deletions
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166
Utilities.h
View File

@ -1516,168 +1516,4 @@ void unlock_rom() {
eeprom_erase();
}
typedef struct FIFOBuffer
{
unsigned char *begin;
unsigned char *end;
unsigned char * volatile head;
unsigned char * volatile tail;
} FIFOBuffer;
inline bool fifo_isempty(const FIFOBuffer *f) {
return f->head == f->tail;
}
inline bool fifo_isfull(const FIFOBuffer *f) {
return ((f->head == f->begin) && (f->tail == f->end)) || (f->tail == f->head - 1);
}
inline void fifo_push(FIFOBuffer *f, unsigned char c) {
*(f->tail) = c;
if (f->tail == f->end) {
f->tail = f->begin;
} else {
f->tail++;
}
}
inline unsigned char fifo_pop(FIFOBuffer *f) {
if(f->head == f->end) {
f->head = f->begin;
return *(f->end);
} else {
return *(f->head++);
}
}
inline void fifo_flush(FIFOBuffer *f) {
f->head = f->tail;
}
#if MCU_VARIANT != MCU_ESP32 && MCU_VARIANT != MCU_NRF52
static inline bool fifo_isempty_locked(const FIFOBuffer *f) {
bool result;
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
result = fifo_isempty(f);
}
return result;
}
static inline bool fifo_isfull_locked(const FIFOBuffer *f) {
bool result;
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
result = fifo_isfull(f);
}
return result;
}
static inline void fifo_push_locked(FIFOBuffer *f, unsigned char c) {
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
fifo_push(f, c);
}
}
#endif
/*
static inline unsigned char fifo_pop_locked(FIFOBuffer *f) {
unsigned char c;
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
c = fifo_pop(f);
}
return c;
}
*/
inline void fifo_init(FIFOBuffer *f, unsigned char *buffer, size_t size) {
f->head = f->tail = f->begin = buffer;
f->end = buffer + size;
}
inline size_t fifo_len(FIFOBuffer *f) {
return f->end - f->begin;
}
typedef struct FIFOBuffer16
{
uint16_t *begin;
uint16_t *end;
uint16_t * volatile head;
uint16_t * volatile tail;
} FIFOBuffer16;
inline bool fifo16_isempty(const FIFOBuffer16 *f) {
return f->head == f->tail;
}
inline bool fifo16_isfull(const FIFOBuffer16 *f) {
return ((f->head == f->begin) && (f->tail == f->end)) || (f->tail == f->head - 1);
}
inline void fifo16_push(FIFOBuffer16 *f, uint16_t c) {
*(f->tail) = c;
if (f->tail == f->end) {
f->tail = f->begin;
} else {
f->tail++;
}
}
inline uint16_t fifo16_pop(FIFOBuffer16 *f) {
if(f->head == f->end) {
f->head = f->begin;
return *(f->end);
} else {
return *(f->head++);
}
}
inline void fifo16_flush(FIFOBuffer16 *f) {
f->head = f->tail;
}
#if MCU_VARIANT != MCU_ESP32 && MCU_VARIANT != MCU_NRF52
static inline bool fifo16_isempty_locked(const FIFOBuffer16 *f) {
bool result;
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
result = fifo16_isempty(f);
}
return result;
}
#endif
/*
static inline bool fifo16_isfull_locked(const FIFOBuffer16 *f) {
bool result;
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
result = fifo16_isfull(f);
}
return result;
}
static inline void fifo16_push_locked(FIFOBuffer16 *f, uint16_t c) {
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
fifo16_push(f, c);
}
}
static inline size_t fifo16_pop_locked(FIFOBuffer16 *f) {
size_t c;
ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
c = fifo16_pop(f);
}
return c;
}
*/
inline void fifo16_init(FIFOBuffer16 *f, uint16_t *buffer, uint16_t size) {
f->head = f->tail = f->begin = buffer;
f->end = buffer + size;
}
inline uint16_t fifo16_len(FIFOBuffer16 *f) {
return (f->end - f->begin);
}
#include "src/misc/FIFOBuffer.h"

95
src/misc/FIFOBuffer.c Normal file
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@ -0,0 +1,95 @@
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include "FIFOBuffer.h"
#ifdef __cplusplus
extern "C" {
#endif
bool fifo_isempty(const FIFOBuffer *f) {
return f->head == f->tail;
}
bool fifo_isfull(const FIFOBuffer *f) {
return ((f->head == f->begin) && (f->tail == f->end)) || (f->tail == f->head - 1);
}
void fifo_push(FIFOBuffer *f, unsigned char c) {
*(f->tail) = c;
if (f->tail == f->end) {
f->tail = f->begin;
} else {
f->tail++;
}
}
unsigned char fifo_pop(FIFOBuffer *f) {
if(f->head == f->end) {
f->head = f->begin;
return *(f->end);
} else {
return *(f->head++);
}
}
void fifo_flush(FIFOBuffer *f) {
f->head = f->tail;
}
void fifo_init(FIFOBuffer *f, unsigned char *buffer, size_t size) {
f->head = f->tail = f->begin = buffer;
f->end = buffer + size;
}
// todo, fix this so it actually displays the amount of data in the fifo
// buffer, not just the size allocated for the buffer
size_t fifo_len(FIFOBuffer *f) {
return f->end - f->begin;
}
bool fifo16_isempty(const FIFOBuffer16 *f) {
return f->head == f->tail;
}
bool fifo16_isfull(const FIFOBuffer16 *f) {
return ((f->head == f->begin) && (f->tail == f->end)) || (f->tail == f->head - 1);
}
void fifo16_push(FIFOBuffer16 *f, uint16_t c) {
*(f->tail) = c;
if (f->tail == f->end) {
f->tail = f->begin;
} else {
f->tail++;
}
}
uint16_t fifo16_pop(FIFOBuffer16 *f) {
if(f->head == f->end) {
f->head = f->begin;
return *(f->end);
} else {
return *(f->head++);
}
}
void fifo16_flush(FIFOBuffer16 *f) {
f->head = f->tail;
}
void fifo16_init(FIFOBuffer16 *f, uint16_t *buffer, uint16_t size) {
f->head = f->tail = f->begin = buffer;
f->end = buffer + size;
}
uint16_t fifo16_len(FIFOBuffer16 *f) {
return (f->end - f->begin);
}
#ifdef __cplusplus
}
#endif

59
src/misc/FIFOBuffer.h Normal file
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@ -0,0 +1,59 @@
#ifndef FIFOBUFFER_H
#define FIFOBUFFER_H
#ifdef __cplusplus
extern "C" {
#endif
/* An 8 bit FIFO buffer implementation */
typedef struct FIFOBuffer
{
unsigned char *begin;
unsigned char *end;
unsigned char * volatile head;
unsigned char * volatile tail;
} FIFOBuffer;
bool fifo_isempty(const FIFOBuffer *f);
bool fifo_isfull(const FIFOBuffer *f);
void fifo_push(FIFOBuffer *f, unsigned char c);
unsigned char fifo_pop(FIFOBuffer *f);
void fifo_flush(FIFOBuffer *f);
void fifo_init(FIFOBuffer *f, unsigned char *buffer, size_t size);
size_t fifo_len(FIFOBuffer *f);
/* A 16-bit implementation of the same FIFO buffer. */
typedef struct FIFOBuffer16
{
uint16_t *begin;
uint16_t *end;
uint16_t * volatile head;
uint16_t * volatile tail;
} FIFOBuffer16;
bool fifo16_isempty(const FIFOBuffer16 *f);
bool fifo16_isfull(const FIFOBuffer16 *f);
void fifo16_push(FIFOBuffer16 *f, uint16_t c);
uint16_t fifo16_pop(FIFOBuffer16 *f);
void fifo16_flush(FIFOBuffer16 *f);
void fifo16_init(FIFOBuffer16 *f, uint16_t *buffer, uint16_t size);
uint16_t fifo16_len(FIFOBuffer16 *f);
#ifdef __cplusplus
}
#endif
#endif