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authorwdenk <wdenk>2002-08-26 22:36:39 +0000
committerwdenk <wdenk>2002-08-26 22:36:39 +0000
commitf8cac651b33efa270e4dfa1292d01a3b5d7a62cf (patch)
tree78f852cbd430308689fb44f6d2ab243cf5cdd73b /board/pcippc2/sconsole.c
parent67c4f48a49bb428bca409b1f6b6ca03f448c3645 (diff)
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Initial revision
Diffstat (limited to 'board/pcippc2/sconsole.c')
-rw-r--r--board/pcippc2/sconsole.c141
1 files changed, 141 insertions, 0 deletions
diff --git a/board/pcippc2/sconsole.c b/board/pcippc2/sconsole.c
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+++ b/board/pcippc2/sconsole.c
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+/*
+ * (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"
+
+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)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+ sb->pos = 0;
+ sb->size = 0;
+ sb->baud = gd->baudrate;
+ sb->max_size = CFG_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)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ 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--;
+ }
+ }
+}