/*
******************************************************************************************************************
*
*Function Name : UART_printf
*
*Description : This function is to formatedly output through UART, similar to ANSI C function printf().
* This function can support and only support the following Conversion Specifiers:
* %d Signed decimal integer.
* %u Unsigned decimal integer.
* %x Unsigned hexadecimal integer, using hex digits 0f.
* %X Unsigned hexadecimal integer, using hex digits 0F.
* %c Single character.
* %s Character string.
* %p A pointer.
*
*Input : refer to ANSI C function printf().
*
*Output : void, different form ANSI C function printf().
*
*call for : void int_to_string_dec( __s32 input, char * str ), defined in format_transformed.c.
* void int_to_string_hex( __s32 input, char * str ); defined in format_transformed.c.
* void Uint_to_string_dec( __u32 input, char * str ); defined in format_transformed.c.
* void UART_putchar( __s32 ch); defined in boot loader.
* void UART_puts( const char * string ); defined in boot loader.
*
*Others : None at present.
*
*******************************************************************************************************************
*/
void UART_printf2( const char * str, ...)
{
char string[13];
char *p;
__s32 hex_flag ;
va_list argp;
va_start( argp, str );
while( *str )
{
if( *str == '%' )
{
++str;
p = string;
hex_flag = HEX_X;
switch( *str )
{
case 'd': int_to_string_dec( va_arg( argp, __s32 ), string );
UART_puts_no_newline( p );
++str;
break;
case 'x': hex_flag = HEX_x; // jump to " case 'X' "
case 'p':
case 'X': int_to_string_hex( va_arg( argp, __s32 ), string, hex_flag );
UART_puts_no_newline( p );
++str;
break;
case 'u': Uint_to_string_dec( va_arg( argp, __s32 ), string );
UART_puts_no_newline( p );
++str;
break;
case 'c': UART_putchar( va_arg( argp, __s32 ) );
++str;
break;
case 's': UART_puts_no_newline( va_arg( argp, char * ) );
++str;
break;
default : UART_putchar( '%' ); // if current character is not Conversion Specifiers 'dxpXucs',
UART_putchar( *str ); // output directly '%' and current character, and then
++str; // let 'str' point to next character.
}
}
else
{
if( *str == '\n' ) // if current character is '\n', insert and output '\r'
UART_putchar( '\r' );
UART_putchar( *str++ );
}
}
va_end( argp );
}
/*
************************************************************************************************************
*
* function
*
* 函数名称：
*
* 参数列表：
*
* 返回值 ：
*
* 说明 ：
*
*
************************************************************************************************************
*/
void wlibc_uprintf( const char * str, ...)
{
char string[16], str_store[256];
char *p, *q = str_store;
__s32 hex_flag ;
va_list argp;
va_start( argp, str );
while( *str )
{
if( *str == '%' )
{
++str;
p = string;
hex_flag = HEX_X;
switch( *str )
{
case 'd': int_to_string_dec( va_arg( argp, __s32 ), string );
q += mem_puts( p, q );
++str;
break;
case 'x': hex_flag = HEX_x; // jump to " case 'X' "
case 'p':
case 'X': int_to_string_hex( va_arg( argp, __s32 ), string, hex_flag );
q += mem_puts( p, q );
++str;
break;
case 'u': Uint_to_string_dec( va_arg( argp, __s32 ), string );
q += mem_puts( p, q );
++str;
break;
case 'c': *q++ = va_arg( argp, __s32 );
++str;
break;
case 's': q += mem_puts( va_arg( argp, char * ), q );
++str;
break;
case 'l':
{
__u32 high;
__u32 low;
if( str[1] == 'l' && ( str[2] == 'x' || str[2] == 'X' ) )
{
low = va_arg( argp, __u32 );
high = va_arg( argp, __u32 );
if( str[2] == 'x' )
hex_flag = 'x';
else
hex_flag = 'X';
int_to_string_hex( high, string, hex_flag );
q += mem_puts( p, q );
int_to_string_hex( low, string, hex_flag );
q += mem_puts( p+2, q );
str += 3;
break;
}
else
{
int_to_string_dec( va_arg( argp, __s32 ), string );
q += mem_puts( p, q );
++str;
break;
}
}
default : *q++ = '%'; // if current character is not Conversion Specifiers 'dxpXucs',
*q++ = *str++; // output directly '%' and current character, and then
// let 'str' point to next character.
}
}
else
{
if( *str == '\n' ) // if current character is '\n', insert and output '\r'
