forked from forks/qmk_firmware
104 lines
3.3 KiB
C
104 lines
3.3 KiB
C
/*---------------------------------------------------------------------------
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Extended itoa, puts and printf (C)ChaN, 2011
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-----------------------------------------------------------------------------*/
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#ifndef XPRINTF_H
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#define XPRINTF_H
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#include <inttypes.h>
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#include <avr/pgmspace.h>
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extern void (*xfunc_out)(uint8_t);
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#define xdev_out(func) xfunc_out = (void(*)(uint8_t))(func)
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/* This is a pointer to user defined output function. It must be initialized
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before using this modle.
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*/
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void xputc(char chr);
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/* This is a stub function to forward outputs to user defined output function.
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All outputs from this module are output via this function.
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*/
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/*-----------------------------------------------------------------------------*/
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void xputs(const char *string_p);
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/* The string placed in the ROM is forwarded to xputc() directly.
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*/
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/*-----------------------------------------------------------------------------*/
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void xitoa(long value, char radix, char width);
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/* Extended itoa().
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value radix width output
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100 10 6 " 100"
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100 10 -6 "000100"
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100 10 0 "100"
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4294967295 10 0 "4294967295"
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4294967295 -10 0 "-1"
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655360 16 -8 "000A0000"
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1024 16 0 "400"
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0x55 2 -8 "01010101"
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*/
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/*-----------------------------------------------------------------------------*/
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#define xprintf(format, ...) __xprintf(PSTR(format), ##__VA_ARGS__)
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#define xsprintf(str, format, ...) __xsprintf(str, PSTR(format), ##__VA_ARGS__)
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#define xfprintf(func, format, ...) __xfprintf(func, PSTR(format), ##__VA_ARGS__)
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void __xprintf(const char *format_p, ...); /* Send formatted string to the registered device */
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void __xsprintf(char*, const char *format_p, ...); /* Put formatted string to the memory */
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void __xfprintf(void(*func)(uint8_t), const char *format_p, ...); /* Send formatted string to the specified device */
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/* Format string is placed in the ROM. The format flags is similar to printf().
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%[flag][width][size]type
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flag
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A '0' means filled with '0' when output is shorter than width.
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' ' is used in default. This is effective only numeral type.
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width
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Minimum width in decimal number. This is effective only numeral type.
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Default width is zero.
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size
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A 'l' means the argument is long(32bit). Default is short(16bit).
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This is effective only numeral type.
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type
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'c' : Character, argument is the value
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's' : String placed on the RAM, argument is the pointer
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'S' : String placed on the ROM, argument is the pointer
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'd' : Signed decimal, argument is the value
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'u' : Unsigned decimal, argument is the value
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'X' : Hexdecimal, argument is the value
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'b' : Binary, argument is the value
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'%' : '%'
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*/
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/*-----------------------------------------------------------------------------*/
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char xatoi(char **str, long *ret);
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/* Get value of the numeral string.
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str
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Pointer to pointer to source string
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"0b11001010" binary
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"0377" octal
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"0xff800" hexdecimal
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"1250000" decimal
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"-25000" decimal
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ret
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Pointer to return value
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*/
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#endif
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