73 lines
2 KiB
C
73 lines
2 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Alan Korr & Nick Robinson
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include "config.h"
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#include "button.h"
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#include "cpu.h"
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#include "system.h"
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#include "kernel.h"
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#include "serial.h"
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#include "serial-imx31.h"
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void serial_setup(void)
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{
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#ifdef UART_INT /*enable UART Interrupts */
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UCR1_1 |= (EUARTUCR1_TRDYEN | EUARTUCR1_RRDYEN | EUARTUCR1_TXMPTYEN);
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UCR4_1 |= (EUARTUCR4_TCEN);
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#else /*disable UART Interrupts*/
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UCR1_1 &= ~(EUARTUCR1_TRDYEN | EUARTUCR1_RRDYEN | EUARTUCR1_TXMPTYEN);
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UCR4_1 &= ~(EUARTUCR4_TCEN);
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#endif
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UCR1_1 |= EUARTUCR1_UARTEN;
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UCR2_1 |= (EUARTUCR2_TXEN | EUARTUCR2_RXEN | EUARTUCR2_IRTS);
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/* Tx,Rx Interrupt Trigger levels, Disable for now*/
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/*UFCR1 |= (UFCR1_TXTL_32 | UFCR1_RXTL_32);*/
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}
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int tx_rdy(void)
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{
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if((UTS1 & EUARTUTS_TXEMPTY))
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return 1;
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else
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return 0;
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}
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/*Not ready...After first Rx, UTS1 & UTS1_RXEMPTY
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keeps returning true*/
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int rx_rdy(void)
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{
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if(!(UTS1 & EUARTUTS_RXEMPTY))
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return 1;
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else
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return 0;
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}
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void tx_writec(unsigned char c)
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{
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UTXD1=(int) c;
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}
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