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Simplify uart_printf() a bit by using vuprintf(), that also makes removing a static buffer possible.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23504 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2009-11-03 21:28:02 +00:00
parent 1ddb91ad36
commit 1566705984
1 changed files with 15 additions and 19 deletions
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34
firmware/target/arm/s3c2440/uart-s3c2440.c
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@ -23,6 +23,7 @@
#include <stdlib.h> #include <stdlib.h>
#include <stdio.h> #include <stdio.h>
#include <stdarg.h> #include <stdarg.h>
#include <sprintf.h>
#include "inttypes.h" #include "inttypes.h"
#include "string.h" #include "string.h"
#include "cpu.h" #include "cpu.h"
@ -58,38 +59,33 @@ void tx_writec(unsigned char c)
} }
static int uart_push(void *user_data, unsigned char ch)
{
(void)user_data;
uart_send_byte(DEBUG_UART_PORT, ch);
if (ch == '\n')
uart_send_byte(DEBUG_UART_PORT, '\r');
return 1;
}
/**************************************************************************** /****************************************************************************
* General purpose debug function * General purpose debug function
****************************************************************************/ ****************************************************************************/
void uart_printf (const char *format, ...) void uart_printf (const char *format, ...)
{ {
static bool debug_uart_init = false; static bool debug_uart_init = false;
static char tx_buf [MAX_PRINTF_BUF];
int len;
unsigned char *ptr;
int j;
va_list ap; va_list ap;
va_start(ap, format);
ptr = tx_buf;
len = vsnprintf(ptr, sizeof(tx_buf), format, ap);
va_end(ap);
if (!debug_uart_init) if (!debug_uart_init)
{ {
uart_init_device(DEBUG_UART_PORT); uart_init_device(DEBUG_UART_PORT);
debug_uart_init = true; debug_uart_init = true;
} }
for (j=0; j<len; j++) va_start(ap, format);
{ vuprintf(uart_push, NULL, format, ap);
uart_send_byte (DEBUG_UART_PORT, tx_buf[j]); va_end(ap);
if ( tx_buf[j] == '\n')
uart_send_byte (DEBUG_UART_PORT, '\r');
}
} }
/**************************************************************************** /****************************************************************************