mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
139 lines
2.7 KiB
C
139 lines
2.7 KiB
C
/*
|
|
* (C) Copyright 2002
|
|
* 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 <config.h>
|
|
#include <common.h>
|
|
|
|
#include "sconsole.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
void (*sconsole_putc) (char) = 0;
|
|
void (*sconsole_puts) (const char *) = 0;
|
|
int (*sconsole_getc) (void) = 0;
|
|
int (*sconsole_tstc) (void) = 0;
|
|
void (*sconsole_setbrg) (void) = 0;
|
|
|
|
int serial_init (void)
|
|
{
|
|
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
|
|
|
|
sb->pos = 0;
|
|
sb->size = 0;
|
|
sb->baud = gd->baudrate;
|
|
sb->max_size = CONFIG_SYS_SCONSOLE_SIZE - sizeof (sconsole_buffer_t);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void serial_putc (char c)
|
|
{
|
|
if (sconsole_putc) {
|
|
(*sconsole_putc) (c);
|
|
} else {
|
|
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
|
|
|
|
if (c) {
|
|
sb->data[sb->pos++] = c;
|
|
if (sb->pos == sb->max_size) {
|
|
sb->pos = 0;
|
|
}
|
|
if (sb->size < sb->max_size) {
|
|
sb->size++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void serial_puts (const char *s)
|
|
{
|
|
if (sconsole_puts) {
|
|
(*sconsole_puts) (s);
|
|
} else {
|
|
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
|
|
|
|
while (*s) {
|
|
sb->data[sb->pos++] = *s++;
|
|
if (sb->pos == sb->max_size) {
|
|
sb->pos = 0;
|
|
}
|
|
if (sb->size < sb->max_size) {
|
|
sb->size++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int serial_getc (void)
|
|
{
|
|
if (sconsole_getc) {
|
|
return (*sconsole_getc) ();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int serial_tstc (void)
|
|
{
|
|
if (sconsole_tstc) {
|
|
return (*sconsole_tstc) ();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void serial_setbrg (void)
|
|
{
|
|
if (sconsole_setbrg) {
|
|
(*sconsole_setbrg) ();
|
|
} else {
|
|
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
|
|
|
|
sb->baud = gd->baudrate;
|
|
}
|
|
}
|
|
|
|
int sconsole_get_baudrate (void)
|
|
{
|
|
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
|
|
|
|
return sb->baud;
|
|
}
|
|
|
|
void sconsole_flush (void)
|
|
{
|
|
if (sconsole_putc) {
|
|
sconsole_buffer_t *sb = SCONSOLE_BUFFER;
|
|
unsigned int end = sb->pos < sb->size
|
|
? sb->pos + sb->max_size - sb->size
|
|
: sb->pos - sb->size;
|
|
|
|
while (sb->size) {
|
|
(*sconsole_putc) (sb->data[end++]);
|
|
if (end == sb->max_size) {
|
|
end = 0;
|
|
}
|
|
sb->size--;
|
|
}
|
|
}
|
|
}
|