mirror of
https://github.com/0xFEEDC0DE64/arduino-esp32.git
synced 2025-07-05 06:46:31 +02:00
IDF master 4e03a9c34c (#5792)
esp-dsp: master e05fc36 esp-face: master f108a83 esp-rainmaker: f1b82c7 esp32-camera: master 3022601 esp_littlefs: master 05d55ab
This commit is contained in:
Me No Dev
GitHub
232
tools/sdk/esp32c3/include/esp_littlefs/src/lfs_config.h
Normal file
232
tools/sdk/esp32c3/include/esp_littlefs/src/lfs_config.h
Normal file
@ -0,0 +1,232 @@
|
||||
/*
|
||||
* lfs utility functions
|
||||
*
|
||||
* Copyright (c) 2017, Arm Limited. All rights reserved.
|
||||
* SPDX-License-Identifier: BSD-3-Clause
|
||||
*/
|
||||
#ifndef LFS_CFG_H
|
||||
#define LFS_CFG_H
|
||||
|
||||
// System includes
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <string.h>
|
||||
#include <inttypes.h>
|
||||
#include "esp_heap_caps.h"
|
||||
|
||||
#ifndef LFS_NO_MALLOC
|
||||
#include <stdlib.h>
|
||||
#endif
|
||||
#ifndef LFS_NO_ASSERT
|
||||
#include <assert.h>
|
||||
#endif
|
||||
#if !defined(LFS_NO_DEBUG) || \
|
||||
!defined(LFS_NO_WARN) || \
|
||||
!defined(LFS_NO_ERROR) || \
|
||||
defined(LFS_YES_TRACE)
|
||||
#include <stdio.h>
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
|
||||
// Macros, may be replaced by system specific wrappers. Arguments to these
|
||||
// macros must not have side-effects as the macros can be removed for a smaller
|
||||
// code footprint
|
||||
|
||||
// Logging functions
|
||||
#ifndef LFS_TRACE
|
||||
#ifdef LFS_YES_TRACE
|
||||
#define LFS_TRACE_(fmt, ...) \
|
||||
printf("%s:%d:trace: " fmt "%s\n", __FILE__, __LINE__, __VA_ARGS__)
|
||||
#define LFS_TRACE(...) LFS_TRACE_(__VA_ARGS__, "")
|
||||
#else
|
||||
#define LFS_TRACE(...)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef LFS_DEBUG
|
||||
#ifndef LFS_NO_DEBUG
|
||||
#define LFS_DEBUG_(fmt, ...) \
|
||||
printf("%s:%d:debug: " fmt "%s\n", __FILE__, __LINE__, __VA_ARGS__)
|
||||
#define LFS_DEBUG(...) LFS_DEBUG_(__VA_ARGS__, "")
|
||||
#else
|
||||
#define LFS_DEBUG(...)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef LFS_WARN
|
||||
#ifndef LFS_NO_WARN
|
||||
#define LFS_WARN_(fmt, ...) \
|
||||
printf("%s:%d:warn: " fmt "%s\n", __FILE__, __LINE__, __VA_ARGS__)
|
||||
#define LFS_WARN(...) LFS_WARN_(__VA_ARGS__, "")
|
||||
#else
|
||||
#define LFS_WARN(...)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef LFS_ERROR
|
||||
#ifndef LFS_NO_ERROR
|
||||
#define LFS_ERROR_(fmt, ...) \
|
||||
printf("%s:%d:error: " fmt "%s\n", __FILE__, __LINE__, __VA_ARGS__)
|
||||
#define LFS_ERROR(...) LFS_ERROR_(__VA_ARGS__, "")
|
||||
#else
|
||||
#define LFS_ERROR(...)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
// Runtime assertions
|
||||
#ifndef LFS_ASSERT
|
||||
#ifndef LFS_NO_ASSERT
|
||||
#define LFS_ASSERT(test) assert(test)
|
||||
#else
|
||||
#define LFS_ASSERT(test)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
// Builtin functions, these may be replaced by more efficient
|
||||
// toolchain-specific implementations. LFS_NO_INTRINSICS falls back to a more
|
||||
// expensive basic C implementation for debugging purposes
|
||||
|
||||
// Min/max functions for unsigned 32-bit numbers
|
||||
static inline uint32_t lfs_max(uint32_t a, uint32_t b) {
|
||||
return (a > b) ? a : b;
|
||||
}
|
||||
|
||||
static inline uint32_t lfs_min(uint32_t a, uint32_t b) {
|
||||
return (a < b) ? a : b;
|
||||
}
|
||||
|
||||
// Align to nearest multiple of a size
|
||||
static inline uint32_t lfs_aligndown(uint32_t a, uint32_t alignment) {
|
||||
return a - (a % alignment);
|
||||
}
|
||||
|
||||
static inline uint32_t lfs_alignup(uint32_t a, uint32_t alignment) {
|
||||
return lfs_aligndown(a + alignment-1, alignment);
|
||||
}
|
||||
|
||||
// Find the smallest power of 2 greater than or equal to a
|
||||
static inline uint32_t lfs_npw2(uint32_t a) {
|
||||
#if !defined(LFS_NO_INTRINSICS) && (defined(__GNUC__) || defined(__CC_ARM))
|
||||
return 32 - __builtin_clz(a-1);
|
||||
#else
|
||||
uint32_t r = 0;
|
||||
uint32_t s;
|
||||
a -= 1;
|
||||
s = (a > 0xffff) << 4; a >>= s; r |= s;
|
||||
s = (a > 0xff ) << 3; a >>= s; r |= s;
|
||||
s = (a > 0xf ) << 2; a >>= s; r |= s;
|
||||
s = (a > 0x3 ) << 1; a >>= s; r |= s;
|
||||
return (r | (a >> 1)) + 1;
|
||||
#endif
|
||||
}
|
||||
|
||||
// Count the number of trailing binary zeros in a
|
||||
// lfs_ctz(0) may be undefined
|
||||
static inline uint32_t lfs_ctz(uint32_t a) {
|
||||
#if !defined(LFS_NO_INTRINSICS) && defined(__GNUC__)
|
||||
return __builtin_ctz(a);
|
||||
#else
|
||||
return lfs_npw2((a & -a) + 1) - 1;
|
||||
#endif
|
||||
}
|
||||
|
||||
// Count the number of binary ones in a
|
||||
static inline uint32_t lfs_popc(uint32_t a) {
|
||||
#if !defined(LFS_NO_INTRINSICS) && (defined(__GNUC__) || defined(__CC_ARM))
|
||||
return __builtin_popcount(a);
|
||||
#else
|
||||
a = a - ((a >> 1) & 0x55555555);
|
||||
a = (a & 0x33333333) + ((a >> 2) & 0x33333333);
|
||||
return (((a + (a >> 4)) & 0xf0f0f0f) * 0x1010101) >> 24;
|
||||
#endif
|
||||
}
|
||||
|
||||
// Find the sequence comparison of a and b, this is the distance
|
||||
// between a and b ignoring overflow
|
||||
static inline int lfs_scmp(uint32_t a, uint32_t b) {
|
||||
return (int)(unsigned)(a - b);
|
||||
}
|
||||
|
||||
// Convert between 32-bit little-endian and native order
|
||||
static inline uint32_t lfs_fromle32(uint32_t a) {
|
||||
#if !defined(LFS_NO_INTRINSICS) && ( \
|
||||
(defined( BYTE_ORDER ) && defined( ORDER_LITTLE_ENDIAN ) && BYTE_ORDER == ORDER_LITTLE_ENDIAN ) || \
|
||||
(defined(__BYTE_ORDER ) && defined(__ORDER_LITTLE_ENDIAN ) && __BYTE_ORDER == __ORDER_LITTLE_ENDIAN ) || \
|
||||
(defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
|
||||
return a;
|
||||
#elif !defined(LFS_NO_INTRINSICS) && ( \
|
||||
(defined( BYTE_ORDER ) && defined( ORDER_BIG_ENDIAN ) && BYTE_ORDER == ORDER_BIG_ENDIAN ) || \
|
||||
(defined(__BYTE_ORDER ) && defined(__ORDER_BIG_ENDIAN ) && __BYTE_ORDER == __ORDER_BIG_ENDIAN ) || \
|
||||
(defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
|
||||
return __builtin_bswap32(a);
|
||||
#else
|
||||
return (((uint8_t*)&a)[0] << 0) |
|
||||
(((uint8_t*)&a)[1] << 8) |
|
||||
(((uint8_t*)&a)[2] << 16) |
|
||||
(((uint8_t*)&a)[3] << 24);
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline uint32_t lfs_tole32(uint32_t a) {
|
||||
return lfs_fromle32(a);
|
||||
}
|
||||
|
||||
// Convert between 32-bit big-endian and native order
|
||||
static inline uint32_t lfs_frombe32(uint32_t a) {
|
||||
#if !defined(LFS_NO_INTRINSICS) && ( \
|
||||
(defined( BYTE_ORDER ) && defined( ORDER_LITTLE_ENDIAN ) && BYTE_ORDER == ORDER_LITTLE_ENDIAN ) || \
|
||||
(defined(__BYTE_ORDER ) && defined(__ORDER_LITTLE_ENDIAN ) && __BYTE_ORDER == __ORDER_LITTLE_ENDIAN ) || \
|
||||
(defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
|
||||
return __builtin_bswap32(a);
|
||||
#elif !defined(LFS_NO_INTRINSICS) && ( \
|
||||
(defined( BYTE_ORDER ) && defined( ORDER_BIG_ENDIAN ) && BYTE_ORDER == ORDER_BIG_ENDIAN ) || \
|
||||
(defined(__BYTE_ORDER ) && defined(__ORDER_BIG_ENDIAN ) && __BYTE_ORDER == __ORDER_BIG_ENDIAN ) || \
|
||||
(defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
|
||||
return a;
|
||||
#else
|
||||
return (((uint8_t*)&a)[0] << 24) |
|
||||
(((uint8_t*)&a)[1] << 16) |
|
||||
(((uint8_t*)&a)[2] << 8) |
|
||||
(((uint8_t*)&a)[3] << 0);
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline uint32_t lfs_tobe32(uint32_t a) {
|
||||
return lfs_frombe32(a);
|
||||
}
|
||||
|
||||
// Calculate CRC-32 with polynomial = 0x04c11db7
|
||||
uint32_t lfs_crc(uint32_t crc, const void *buffer, size_t size);
|
||||
|
||||
// Allocate memory, only used if buffers are not provided to littlefs
|
||||
// Note, memory must be 64-bit aligned
|
||||
static inline void *lfs_malloc(size_t size) {
|
||||
#ifndef LFS_NO_MALLOC
|
||||
return heap_caps_malloc(size, MALLOC_CAP_8BIT | MALLOC_CAP_INTERNAL);
|
||||
#else
|
||||
(void)size;
|
||||
return NULL;
|
||||
#endif
|
||||
}
|
||||
|
||||
// Deallocate memory, only used if buffers are not provided to littlefs
|
||||
static inline void lfs_free(void *p) {
|
||||
#ifndef LFS_NO_MALLOC
|
||||
free(p);
|
||||
#else
|
||||
(void)p;
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* extern "C" */
|
||||
#endif
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user