mirror of
https://github.com/esp8266/Arduino.git
synced 2025-04-21 10:26:06 +03:00
885276e75c
* Unaligned access support for pgm_read_word/dword * Fix pgm_read_ptr_aligned() per #5735 * Allow users to use aligned-only via a #define Adding -DPGM_READ_UNALIGNED=0 or #define PGM_READ_UNALIGNED 0 will change the default at compile-time to only aligned (faster, but less compatible) macro implementations. Default is still to allow unaligned accesses.
71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/* PGMSPACE.H - Accessor utilities/types for accessing PROGMEM data */
|
|
|
|
#ifndef _PGMSPACE_H_
|
|
#define _PGMSPACE_H_
|
|
|
|
// These are no-ops in anything but the ESP8266, where they are defined in
|
|
// a custom sys/pgmspace.h header
|
|
|
|
#ifndef ICACHE_RODATA_ATTR
|
|
#define ICACHE_RODATA_ATTR
|
|
#endif
|
|
|
|
#ifndef PROGMEM
|
|
#define PROGMEM
|
|
#endif
|
|
|
|
#ifndef PGM_P
|
|
#define PGM_P const char *
|
|
#endif
|
|
|
|
#ifndef PGM_VOID_P
|
|
#define PGM_VOID_P const void *
|
|
#endif
|
|
|
|
#ifndef PSTR
|
|
#define PSTR
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
#define pgm_read_byte(addr) (*reinterpret_cast<const uint8_t*>(addr))
|
|
#define pgm_read_word(addr) (*reinterpret_cast<const uint16_t*>(addr))
|
|
#define pgm_read_dword(addr) (*reinterpret_cast<const uint32_t*>(addr))
|
|
#define pgm_read_float(addr) (*reinterpret_cast<const float>(addr))
|
|
#define pgm_read_ptr(addr) (*reinterpret_cast<const void* const *>(addr))
|
|
#else
|
|
#define pgm_read_byte(addr) (*(const uint8_t*)(addr))
|
|
#define pgm_read_word(addr) (*(const uint16_t*)(addr))
|
|
#define pgm_read_dword(addr) (*(const uint32_t*)(addr))
|
|
#define pgm_read_float(addr) (*(const float)(addr))
|
|
#define pgm_read_ptr(addr) (*(const void* const *)(addr))
|
|
#endif
|
|
|
|
#define pgm_read_byte_near(addr) pgm_read_byte(addr)
|
|
#define pgm_read_word_near(addr) pgm_read_word(addr)
|
|
#define pgm_read_dword_near(addr) pgm_read_dword(addr)
|
|
#define pgm_read_float_near(addr) pgm_read_float(addr)
|
|
#define pgm_read_ptr_near(addr) pgm_read_ptr(addr)
|
|
#define pgm_read_byte_far(addr) pgm_read_byte(addr)
|
|
#define pgm_read_word_far(addr) pgm_read_word(addr)
|
|
#define pgm_read_dword_far(addr) pgm_read_dword(addr)
|
|
#define pgm_read_float_far(addr) pgm_read_float(addr)
|
|
#define pgm_read_ptr_far(addr) pgm_read_ptr(addr)
|
|
|
|
// Wrapper inlines for _P functions
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
inline const char *strstr_P(const char *haystack, const char *needle) { return strstr(haystack, needle); }
|
|
inline char *strcpy_P(char *dest, const char *src) { return strcpy(dest, src); }
|
|
inline size_t strlen_P(const char *s) { return strlen(s); }
|
|
inline int vsnprintf_P(char *str, size_t size, const char *format, va_list ap) { return vsnprintf(str, size, format, ap); }
|
|
|
|
#define memcpy_P memcpy
|
|
#define strncpy_P strncpy
|
|
#define strcmp_P strcmp
|
|
#define memccpy_P memccpy
|
|
#define snprintf_P snprintf
|
|
#define sprintf_P sprintf
|
|
#define strncmp_P strncmp
|
|
|
|
#endif
|