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68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/* PGMSPACE.H - Accessor utilities/types for accessing PROGMEM data */
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#ifndef _PGMSPACE_H_
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#define _PGMSPACE_H_
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// These are no-ops in anything but the ESP8266, where they are defined in
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// a custom sys/pgmspace.h header
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#ifndef ICACHE_RODATA_ATTR
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#define ICACHE_RODATA_ATTR
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#endif
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#ifndef PROGMEM
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#define PROGMEM
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#endif
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#ifndef PGM_P
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#define PGM_P const char *
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#endif
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#ifndef PGM_VOID_P
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#define PGM_VOID_P const void *
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#endif
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#ifndef PSTR
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#define PSTR
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#endif
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#ifdef __cplusplus
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#define pgm_read_byte(addr) (*reinterpret_cast<const uint8_t*>(addr))
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#define pgm_read_word(addr) (*reinterpret_cast<const uint16_t*>(addr))
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#define pgm_read_dword(addr) (*reinterpret_cast<const uint32_t*>(addr))
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#define pgm_read_float(addr) (*reinterpret_cast<const float>(addr))
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#define pgm_read_ptr(addr) (*reinterpret_cast<const void const *>(addr))
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#else
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#define pgm_read_byte(addr) (*(const uint8_t*)(addr))
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#define pgm_read_word(addr) (*(const uint16_t*)(addr))
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#define pgm_read_dword(addr) (*(const uint32_t*)(addr))
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#define pgm_read_float(addr) (*(const float)(addr))
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#define pgm_read_ptr(addr) (*(const void const *)(addr))
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#endif
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#define pgm_read_byte_near(addr) pgm_read_byte(addr)
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#define pgm_read_word_near(addr) pgm_read_word(addr)
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#define pgm_read_dword_near(addr) pgm_read_dword(addr)
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#define pgm_read_float_near(addr) pgm_read_float(addr)
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#define pgm_read_ptr_near(addr) pgm_read_ptr(addr)
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#define pgm_read_byte_far(addr) pgm_read_byte(addr)
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#define pgm_read_word_far(addr) pgm_read_word(addr)
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#define pgm_read_dword_far(addr) pgm_read_dword(addr)
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#define pgm_read_float_far(addr) pgm_read_float(addr)
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#define pgm_read_ptr_far(addr) pgm_read_ptr(addr)
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// Wrapper inlines for _P functions
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#include <stdio.h>
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#include <string.h>
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inline const char *strstr_P(const char *haystack, const char *needle) { return strstr(haystack, needle); }
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inline char *strcpy_P(char *dest, const char *src) { return strcpy(dest, src); }
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inline size_t strlen_P(const char *s) { return strlen(s); }
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inline int vsnprintf_P(char *str, size_t size, const char *format, va_list ap) { return vsnprintf(str, size, format, ap); }
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#define memcpy_P memcpy
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#define strncpy_P strncpy
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#define strcmp_P strcmp
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#define memccpy_P memccpy
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#endif
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