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/*
* (C) Copyright 2001
* Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* serial.c - serial support for the gal ev board
*/
/* supports both the 16650 duart and the MPSC */
#include <common.h>
#include <command.h>
#include <galileo/memory.h>
#if (defined CFG_INIT_CHAN1) || (defined CFG_INIT_CHAN2)
#include <ns16550.h>
#endif
#include "serial.h"
#include "mpsc.h"
#if (defined CFG_INIT_CHAN1) || (defined CFG_INIT_CHAN2)
const NS16550_t COM_PORTS[] = { (NS16550_t) CFG_NS16550_COM1,
(NS16550_t) CFG_NS16550_COM2 };
#endif
#ifdef CONFIG_MPSC
int serial_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
#if (defined CFG_INIT_CHAN1) || (defined CFG_INIT_CHAN2)
int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
#endif
mpsc_init(gd->baudrate);
/* init the DUART chans so that KGDB in the kernel can use them */
#ifdef CFG_INIT_CHAN1
NS16550_reinit(COM_PORTS[0], clock_divisor);
#endif
#ifdef CFG_INIT_CHAN2
NS16550_reinit(COM_PORTS[1], clock_divisor);
#endif
return (0);
}
void
serial_putc(const char c)
{
if (c == '\n')
mpsc_putchar('\r');
mpsc_putchar(c);
}
int
serial_getc(void)
{
return mpsc_getchar();
}
int
serial_tstc(void)
{
return mpsc_test_char();
}
void
serial_setbrg (void)
{
DECLARE_GLOBAL_DATA_PTR;
galbrg_set_baudrate(CONFIG_MPSC_PORT, gd->baudrate);
}
#else /* ! CONFIG_MPSC */
int serial_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
#ifdef CFG_INIT_CHAN1
(void)NS16550_init(COM_PORTS[0], clock_divisor);
#endif
#ifdef CFG_INIT_CHAN2
(void)NS16550_init(COM_PORTS[1], clock_divisor);
#endif
return (0);
}
void
serial_putc(const char c)
{
if (c == '\n')
NS16550_putc(COM_PORTS[CFG_DUART_CHAN], '\r');
NS16550_putc(COM_PORTS[CFG_DUART_CHAN], c);
}
int
serial_getc(void)
{
return NS16550_getc(COM_PORTS[CFG_DUART_CHAN]);
}
int
serial_tstc(void)
{
return NS16550_tstc(COM_PORTS[CFG_DUART_CHAN]);
}
void
serial_setbrg (void)
{
DECLARE_GLOBAL_DATA_PTR;
int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
#ifdef CFG_INIT_CHAN1
NS16550_reinit(COM_PORTS[0], clock_divisor);
#endif
#ifdef CFG_INIT_CHAN2
NS16550_reinit(COM_PORTS[1], clock_divisor);
#endif
}
#endif /* CONFIG_MPSC */
void
serial_puts (const char *s)
{
while (*s) {
serial_putc (*s++);
}
}
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
void
kgdb_serial_init(void)
{
}
void
putDebugChar (int c)
{
serial_putc (c);
}
void
putDebugStr (const char *str)
{
serial_puts (str);
}
int
getDebugChar (void)
{
return serial_getc();
}
void
kgdb_interruptible (int yes)
{
return;
}
#endif /* CFG_CMD_KGDB */
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