mirror of https://github.com/l4ka/hazelnut.git
33 lines
788 B
C
33 lines
788 B
C
/*********************************************************************
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*
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* Copyright (C) 2001, Karlsruhe University
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*
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* File path: lib/io/arm-pleb-getc.c
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* Description: serial getc() for StrongARM 1100 based PLEB
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*
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* @LICENSE@
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*
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* $Id: arm-pleb-getc.c,v 1.1 2001/12/27 17:07:07 ud3 Exp $
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*
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********************************************************************/
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#include <l4/l4.h>
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#include "pleb-uart.h"
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int getc(void)
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{
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volatile dword_t tmp;
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/*
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* Wait till the receive FIFO has something in it.
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*/
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do {
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tmp = L4_UART_UTSR1;
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} while ( !(tmp & L4_UART_RNE) );
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/*
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* Read a character from the receive FIFO.
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*/
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return (byte_t) ( L4_UART_UTDR );
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}
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