diff options
Diffstat (limited to 'tmk_core/protocol/arm_atsam/usb/spfssf.c')
| -rw-r--r-- | tmk_core/protocol/arm_atsam/usb/spfssf.c | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/tmk_core/protocol/arm_atsam/usb/spfssf.c b/tmk_core/protocol/arm_atsam/usb/spfssf.c new file mode 100644 index 000000000..449a8bb7d --- /dev/null +++ b/tmk_core/protocol/arm_atsam/usb/spfssf.c @@ -0,0 +1,268 @@ +#include "samd51j18a.h" +#include "stdarg.h" +#include "spfssf.h" +#include "usb_util.h" + +int vspf(char *_Dest, const char *_Format, va_list va) +{ + //va_list va; //Variable argument list variable + char *d = _Dest; //Pointer to dest + + //va_start(va,_Format); //Initialize the variable argument list + while (*_Format) //While not end of format string + { + if (*_Format == SPF_SPEC_START) //If current format string character is the specifier start character + { + _Format++; //Skip over the character + while (*_Format && *_Format <= 64) _Format++; //Forward past any options + if (*_Format == SPF_SPEC_START) *d++ = *_Format; //If the character is the specifier start character, output the character and advance dest + else if (*_Format == SPF_SPEC_LONG) //If the character is the long type + { + _Format++; //Skip over the character + if (*_Format == SPF_SPEC_DECIMAL) //If the character is the decimal type + { + int64_t buf = va_arg(va,int64_t); //Get the next value from the va list + //if (buf < 0) { *d++ = '-'; buf = -buf; } //If the given number is negative, add a negative sign to the dest and invert number + //spf_uint2str_32_3t(&d,buf,32); //Perform the conversion + d += UTIL_ltoa_radix(buf, d, 10); + } + else if (*_Format == SPF_SPEC_UNSIGNED) //If the character is the unsigned type + { + uint64_t num = va_arg(va,uint64_t); //Get the next value from the va list + //spf_uint2str_32_3t(&d,num,32); //Perform the conversion + d += UTIL_ltoa_radix(num, d, 10); + } + else if (*_Format == SPF_SPEC_UHINT || *_Format == SPF_SPEC_UHINT_UP) //If the character is the unsigned type + { + uint64_t buf = va_arg(va,uint64_t); //Get the next value from the va list + //spf_uint2hex_32(&d,(unsigned long) buf); + d += UTIL_ltoa_radix(buf, d, 16); + } + else //If the character was not a known type + { + *d++ = SPF_SPEC_START; //Output the start specifier + *d++ = SPF_SPEC_LONG; //Output the long type + *d++ = *_Format; //Output the unknown type + } + } + else if (*_Format == SPF_SPEC_DECIMAL) //If the character is the decimal type + { + int buf = va_arg(va,int); //Get the next value from the va list + //if (buf < 0) { *d++ = '-'; buf = -buf; } //If the given number is negative, add a negative sign to the dest and invert number + //spf_uint2str_32_3t(&d,buf,16); //Perform the conversion + d += UTIL_itoa(buf, d); + } + else if (*_Format == SPF_SPEC_INT) //If the character is the integer type + { + int buf = va_arg(va,int); //Get the next value from the va list + //if (buf < 0) { *d++ = '-'; buf = -buf; } //If the given number is negative, add a negative sign to the dest and inverted number + //spf_uint2str_32_3t(&d,buf,16); //Perform the conversion + d += UTIL_itoa(buf, d); + } + else if (*_Format == SPF_SPEC_UINT) //If the character is the unsigned integer type + { + int buf = va_arg(va,int); //Get the next value from the va list + //spf_uint2str_32_3t(&d,buf,16); //Perform the conversion + d += UTIL_utoa(buf, d); + } + else if (*_Format == SPF_SPEC_STRING) //If the character is the string type + { + char *buf = va_arg(va,char*); //Get the next value from the va list + while (*buf) *d++ = *buf++; //Perform the conversion (simply output characters and adcance pointers) + } + else if (*_Format == SPF_SPEC_UHINT || *_Format == SPF_SPEC_UHINT_UP) //If the character is the short type + { + int buf = va_arg(va,unsigned int); //Get the next value from the va list + //spf_uint2hex_32(&d,(unsigned long) buf); //Perform the conversion + d += UTIL_utoa(buf, d); + } + else //If the character type is unknown + { + *d++ = SPF_SPEC_START; //Output the start specifier + *d++ = *_Format; //Output the unknown type + } + } + else *d++ = *_Format; //If the character is unknown, output it to dest and advance dest + _Format++; //Advance the format buffer pointer to next character + } + //va_end(va); //End the variable argument list + + *d = '\0'; //Cap off the destination string with a zero + + return d - _Dest; //Return the length of the destintion buffer +} + +int spf(char *_Dest, const char *_Format, ...) +{ + va_list va; //Variable argument list variable + int result; + + va_start(va,_Format); //Initialize the variable argument list + result = vspf(_Dest, _Format, va); + va_end(va); + return result; +} + +//sscanf string to number (integer types) +int64_t ssf_ston(const char **_Src, uint32_t count, uint32_t *conv_count) +{ + int64_t value = 0; //Return value accumulator + uint32_t counter=count; //Counter to keep track of numbers converted + const char* p; //Pointer to first non space character + + while (*(*_Src) == SSF_SKIP_SPACE) (*_Src)++; //Forward through the whitespace to next non whitespace + + p = (*_Src); //Set pointer to first non space character + if (*p == '+' || *p == '-') (*_Src)++; //Skip over sign if any + while (*(*_Src) >= ASCII_NUM_START && + *(*_Src) <= ASCII_NUM_END && + counter) //While the source character is a digit and counter is not zero + { + value *= 10; //Multiply result by 10 to make room for next 1's place number + value += *(*_Src)++ - ASCII_NUM_START; //Add source number to value + counter--; //Decrement counter + } + if (counter - count == 0) return 0; //If no number conversion were performed, return 0 + if (*p == '-') value = -value; //If the number given was negative, make the result negative + + if (conv_count) (*conv_count)++; //Increment the converted count + return value; //Return the value +} + +uint64_t ssf_hton(const char **_Src, uint32_t count,uint32_t *conv_count) +{ + int64_t value=0; //Return value accumulator + uint32_t counter=count; //Counter to keep track of numbers converted + //const char* p; //Pointer to first non space character + char c; + + while (*(*_Src) == SSF_SKIP_SPACE) (*_Src)++; //Forward through the whitespace to next non whitespace + + //p = (*_Src); //Set pointer to first non space character + + while (counter) + { + c = *(*_Src)++; + if (c >= 'a' && c <= 'f') c -= ('a'-'A'); //toupper + if (c < '0' || (c > '9' && c < 'A') || c > 'F') break; + value *= 16; //Multiply result by 10 to make room for next 1's place number + c = c - '0'; + if (c > 9) c -= 7; + value += c; //Add source number to value + counter--; //Decrement counter + } + + if (counter - count == 0) return 0; //If no number conversion were performed, return 0 + //if (*p == '-') value = -value; //If the number given was negative, make the result negative + + if (conv_count) (*conv_count)++; //Increment the converted count + return value; +} + +//sscanf +int ssf(const char *_Src, const char *_Format, ...) +{ + va_list va; //Variable argument list variable + unsigned char looking_for=0; //Static char specified in format to be found in source + uint32_t conv_count=0; //Count of conversions made + + va_start(va,_Format); //Initialize the variable argument list + while (*_Format) //While the format string has not been fully read + { + if (looking_for != 0) //If we are looking for a matching character in the source string + { + while (*_Src != looking_for && *_Src) _Src++; //While the character is not found in the source string and not the end of the source + // string, increment the pointer position + if (*_Src == looking_for) _Src++; //If the character was found, step over it + else break; //Else the end was reached and the scan is now invalid (Could not find static character) + looking_for = 0; //Clear the looking for character + } + if (*_Format == SSF_SPEC_START) //If the current format character is the specifier start character + { + _Format++; //Step over the specifier start character + if (*_Format == SSF_SPEC_DECIMAL) //If the decimal specifier type is found + { + int *value=va_arg(va,int*); //User given destination address + //*value = (int)ssf_ston(&_Src,5,&conv_count); //Run conversion + *value = (int)ssf_ston(&_Src,10,&conv_count); //Run conversion + } + else if (*_Format == SSF_SPEC_LONG) //If the long specifier type is found + { + _Format++; //Skip over the specifier type + if (*_Format == SSF_SPEC_DECIMAL) //If the decimal specifier type is found + { + int64_t *value=va_arg(va,int64_t*); //User given destination address + //*value = (int64_t)ssf_ston(&_Src,10,&conv_count); //Run conversion + *value = (int64_t)ssf_ston(&_Src,19,&conv_count); //Run conversion + } + else if (*_Format == SSF_SPEC_UHINT) //If the decimal specifier type is found + { + uint64_t *value=va_arg(va,uint64_t *); //User given destination address + //*value = (uint64_t int)ssf_hton(&_Src,12,&conv_count); //Run conversion + *value = (uint64_t)ssf_hton(&_Src,16,&conv_count); //Run conversion + } + } + else if (*_Format == SSF_SPEC_SHORTINT) //If the short int specifier type is found + { + _Format++; //Skip over the specifier type + if (*_Format == SSF_SPEC_SHORTINT) //If the short int specifier type is found + { + _Format++; //Skip over the specifier type + if (*_Format == SSF_SPEC_DECIMAL) //If the decimal specifier type is found + { + unsigned char *value=va_arg(va,unsigned char*); //User given destination address + //*value = (unsigned char)ssf_ston(&_Src,3,&conv_count); //Run conversion + *value = (unsigned char)ssf_ston(&_Src,5,&conv_count); //Run conversion + } + } + } + else if (*_Format == SSF_SPEC_STRING) //If the specifier type is string + { + char *value=va_arg(va,char*); //User given destination address, max chars read pointer + while (*_Src == SSF_SKIP_SPACE) _Src++; //Forward through the whitespace to next non whitespace + while (*_Src != SSF_SKIP_SPACE && *_Src) *value++ = *_Src++; //While any character but space and not end of string and not end location, copy char to dest + *value = 0; //Cap off the string pointer with zero + conv_count++; //Increment the converted count + } + else if (*_Format == SSF_SPEC_VERSION) //If the specifier type is string + { + char *value=va_arg(va,char*); //User given destination address, max chars read pointer + while (*_Src == SSF_SKIP_SPACE) _Src++; //Forward through the whitespace to next non whitespace + while (*_Src != SSF_DELIM_COMMA && *_Src) *value++ = *_Src++; //While any character but space and not end of string and not end location, copy char to dest + *value = 0; //Cap off the string pointer with zero + conv_count++; //Increment the converted count + } + else if (*_Format >= ASCII_NUM_START && *_Format <= ASCII_NUM_END) + { + uint32_t len = (uint32_t)ssf_ston(&_Format,3,NULL); //Convert the given length + if (*_Format == SSF_SPEC_STRING) //If the specifier type is string + { + char *value=va_arg(va,char*),*e; //User given destination address, max chars read pointer + while (*_Src == SSF_SKIP_SPACE) _Src++; //Forward through the whitespace to next non whitespace + e = (char*)_Src+len; //Set a maximum length pointer location + while (*_Src != SSF_SKIP_SPACE && *_Src && _Src != e) *value++ = *_Src++; //While any character but space and not end of string and not end location, copy char to dest + *value = 0; //Cap off the string pointer with zero + conv_count++; //Increment the converted count + } + else if (*_Format == SSF_SPEC_VERSION) //If the specifier type is string + { + char *value=va_arg(va,char*),*e; //User given destination address, max chars read pointer + while (*_Src == SSF_SKIP_SPACE) _Src++; //Forward through the whitespace to next non whitespace + e = (char*)_Src+len; //Set a maximum length pointer location + while (*_Src != SSF_DELIM_COMMA && *_Src && _Src != e) *value++ = *_Src++; //While any character but space and not end of string and not end location, copy char to dest + *value = 0; //Cap off the string pointer with zero + conv_count++; //Increment the converted count + } + } + else if (*_Format == SSF_SPEC_START) looking_for = *_Format; //If another start specifier character is found, output a specifier character + else break; //Scan is now invalid (Uknown type specified) + } + else if (*_Format == SSF_SKIP_SPACE) { } //If a space is found, ignore it + else looking_for = *_Format; //If any other character is found, it is static and should be found in src as well + _Format++; //Skip over current format character + } + + va_end(va); //End the variable argument list + return conv_count; //Return the number of conversions made +} + |