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/*
* (C) Copyright 2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* 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
*/
#include <common.h>
#include <serial.h>
#include <devices.h>
#if defined(CONFIG_SERIAL_MULTI)
static struct serial_device *serial_devices = NULL;
static struct serial_device *serial_current = NULL;
#ifndef CONFIG_LWMON
struct serial_device *default_serial_console (void)
{
#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
return &serial_smc_device;
#elif defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
|| defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
return &serial_scc_device;
#else
#error No default console
#endif
}
#endif
static int serial_register (struct serial_device *dev)
{
DECLARE_GLOBAL_DATA_PTR;
dev->init += gd->reloc_off;
dev->setbrg += gd->reloc_off;
dev->getc += gd->reloc_off;
dev->tstc += gd->reloc_off;
dev->putc += gd->reloc_off;
dev->puts += gd->reloc_off;
dev->next = serial_devices;
serial_devices = dev;
return 0;
}
void serial_initialize (void)
{
#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
serial_register (&serial_smc_device);
#endif
#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
|| defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
serial_register (&serial_scc_device);
#endif
serial_assign (default_serial_console ()->name);
}
void serial_devices_init (void)
{
device_t dev;
struct serial_device *s = serial_devices;
while (s) {
memset (&dev, 0, sizeof (dev));
strcpy (dev.name, s->name);
dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
dev.start = s->init;
dev.putc = s->putc;
dev.puts = s->puts;
dev.getc = s->getc;
dev.tstc = s->tstc;
device_register (&dev);
s = s->next;
}
}
int serial_assign (char *name)
{
struct serial_device *s;
for (s = serial_devices; s; s = s->next) {
if (strcmp (s->name, name) == 0) {
serial_current = s;
return 0;
}
}
return 1;
}
void serial_reinit_all (void)
{
struct serial_device *s;
for (s = serial_devices; s; s = s->next) {
s->init ();
}
}
int serial_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
struct serial_device *dev = default_serial_console ();
return dev->init ();
}
return serial_current->init ();
}
void serial_setbrg (void)
{
DECLARE_GLOBAL_DATA_PTR;
if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
struct serial_device *dev = default_serial_console ();
dev->setbrg ();
return;
}
serial_current->setbrg ();
}
int serial_getc (void)
{
DECLARE_GLOBAL_DATA_PTR;
if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
struct serial_device *dev = default_serial_console ();
return dev->getc ();
}
return serial_current->getc ();
}
int serial_tstc (void)
{
DECLARE_GLOBAL_DATA_PTR;
if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
struct serial_device *dev = default_serial_console ();
return dev->tstc ();
}
return serial_current->tstc ();
}
void serial_putc (const char c)
{
DECLARE_GLOBAL_DATA_PTR;
if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
struct serial_device *dev = default_serial_console ();
dev->putc (c);
return;
}
serial_current->putc (c);
}
void serial_puts (const char *s)
{
DECLARE_GLOBAL_DATA_PTR;
if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
struct serial_device *dev = default_serial_console ();
dev->puts (s);
return;
}
serial_current->puts (s);
}
#endif /* CONFIG_SERIAL_MULTI */
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