mirror of https://github.com/l4ka/hazelnut.git
35 lines
819 B
C
35 lines
819 B
C
/*********************************************************************
|
|
*
|
|
* Copyright (C) 2001, Karlsruhe University
|
|
*
|
|
* File path: lib/io/arm-pleb-putc.c
|
|
* Description: serial putc() for StrongARM 1100 based PLEB
|
|
*
|
|
* @LICENSE@
|
|
*
|
|
* $Id: arm-pleb-putc.c,v 1.1 2001/12/27 17:07:07 ud3 Exp $
|
|
*
|
|
********************************************************************/
|
|
#include <l4/l4.h>
|
|
#include "pleb-uart.h"
|
|
|
|
void putc(int c)
|
|
{
|
|
volatile dword_t tmp;
|
|
|
|
/*
|
|
* Wait till the transmit FIFO has a free slot.
|
|
*/
|
|
do {
|
|
tmp = L4_UART_UTSR1;
|
|
} while ( !(tmp & L4_UART_TNF) );
|
|
|
|
/*
|
|
* Add the character to the transmit FIFO.
|
|
*/
|
|
L4_UART_UTDR = (dword_t) c;
|
|
|
|
if ( c == '\n' )
|
|
putc('\r');
|
|
}
|