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controller/Debug/print/print.c

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/* Copyright (C) 2011-2013 by Jacob Alexander
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
// ----- Includes -----
// Compiler Includes
#include <stdarg.h>
// Project Includes
#include "print.h"
// ----- Functions -----
// USB HID String Output
void usb_debug_putstr( char* s )
{
#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
while ( *s != '\0' )
usb_debug_putchar( *s++ );
#elif defined(_mk20dx128_) // ARM
// Count characters until NULL character, then send the amount counted
uint32_t count = 0;
while ( s[count] != '\0' )
count++;
usb_serial_write( s, count );
#endif
}
// Multiple string Output
void usb_debug_putstrs( char* first, ... )
{
// Initialize the variadic function parameter list
va_list ap;
// Get the first parameter
va_start( ap, first );
char *cur = first;
// Loop through the variadic list until "\0\0\0" is found
while ( !( cur[0] == '\0' && cur[1] == '\0' && cur[2] == '\0' ) )
{
// Print out the given string
usb_debug_putstr( cur );
// Get the next argument ready
cur = va_arg( ap, char* );
}
va_end( ap ); // Not required, but good practice
}
// Print a constant string
void _print(const char *s)
{
#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
char c;
// Acquire the character from flash, and print it, as long as it's not NULL
// Also, if a newline is found, print a carrige return as well
while ( ( c = pgm_read_byte(s++) ) != '\0' )
{
if ( c == '\n' )
usb_debug_putchar('\r');
usb_debug_putchar(c);
}
#elif defined(_mk20dx128_) // ARM
usb_debug_putstr( (char*)s );
#endif
}
// Number Printing Functions
void printInt8( uint8_t in )
{
// Max number of characters is 3 + 1 for null
char tmpStr[4];
// Convert number
int8ToStr( in, tmpStr );
// Print number
dPrintStr( tmpStr );
}
void printInt16( uint16_t in )
{
// Max number of characters is 5 + 1 for null
char tmpStr[6];
// Convert number
int16ToStr( in, tmpStr );
// Print number
dPrintStr( tmpStr );
}
void printHex_op( uint16_t in, uint8_t op )
{
// With an op of 1, the max number of characters is 6 + 1 for null
// e.g. "0xFFFF\0"
// op 2 and 4 require fewer characters (2+1 and 4+1 respectively)
char tmpStr[7];
// Convert number
hexToStr_op( in, tmpStr, op );
// Print number
dPrintStr( tmpStr );
}
// String Functions
void int8ToStr( uint8_t in, char* out )
{
// Position and sign containers
uint8_t pos;
pos = 0;
// Evaluate through digits as decimal
do
{
out[pos++] = in % 10 + '0';
}
while ( (in /= 10) > 0 );
// Append null
out[pos] = '\0';
// Reverse the string to the correct order
revsStr(out);
}
void int16ToStr( uint16_t in, char* out )
{
// Position and sign containers
uint16_t pos;
pos = 0;
// Evaluate through digits as decimal
do
{
out[pos++] = in % 10 + '0';
}
while ( (in /= 10) > 0 );
// Append null
out[pos] = '\0';
// Reverse the string to the correct order
revsStr(out);
}
void hexToStr_op( uint16_t in, char* out, uint8_t op )
{
// Position container
uint16_t pos = 0;
// Evaluate through digits as hex
do
{
uint16_t cur = in % 16;
out[pos++] = cur + (( cur < 10 ) ? '0' : 'A' - 10);
}
while ( (in /= 16) > 0 );
// Output formatting options
switch ( op )
{
case 1: // Add 0x
out[pos++] = 'x';
out[pos++] = '0';
break;
case 2: // 8-bit padding
case 4: // 16-bit padding
while ( pos < op )
out[pos++] = '0';
break;
}
// Append null
out[pos] = '\0';
// Reverse the string to the correct order
revsStr(out);
}
void revsStr( char* in )
{
// Iterators
int i, j;
// Temp storage
char c;
// Loop through the string, and reverse the order of the characters
for ( i = 0, j = lenStr( in ) - 1; i < j; i++, j-- )
{
c = in[i];
in[i] = in[j];
in[j] = c;
}
}
uint16_t lenStr( char* in )
{
// Iterator
char *pos;
// Loop until null is found
for ( pos = in; *pos; pos++ );
// Return the difference between the pointers of in and pos (which is the string length)
return (pos - in);
}
uint8_t eqStr( char* str1, char* str2 )
{
// Scan each string for NULLs and whether they are the same
while( *str1 != '\0' && *str1++ == *str2++ );
// If the strings are still identical (i.e. both NULL), then return 1, otherwise 0
return *--str1 == *--str2 ? 1 : 0;
}