/*
- * (C) Copyright 2002
+ * (C) Copyright 2002-2007
* Detlev Zundel, dzu@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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _LOGBUFF_H
#define _LOGBUFF_H
#ifdef CONFIG_LOGBUFFER
-#define LOGBUFF_TEST0 0x01
+#define LOGBUFF_MAGIC 0xc0de4ced /* Forced by code, eh! */
+#define LOGBUFF_LEN (16384) /* Must be 16k right now */
+#define LOGBUFF_MASK (LOGBUFF_LEN-1)
+#define LOGBUFF_OVERHEAD (4096) /* Logbuffer overhead for extra info */
+#define LOGBUFF_RESERVE (LOGBUFF_LEN+LOGBUFF_OVERHEAD)
+
+/* The mapping used here has to be the same as in setup_ext_logbuff ()
+ in linux/kernel/printk */
+
+typedef struct {
+ union {
+ struct {
+ unsigned long tag;
+ unsigned long start;
+ unsigned long con;
+ unsigned long end;
+ unsigned long chars;
+ } v2;
+ struct {
+ unsigned long dummy;
+ unsigned long tag;
+ unsigned long start;
+ unsigned long size;
+ unsigned long chars;
+ } v1;
+ };
+ unsigned char buf[0];
+} logbuff_t;
int drv_logbuff_init (void);
+void logbuff_init_ptrs (void);
void logbuff_log(char *msg);
void logbuff_reset (void);
+unsigned long logbuffer_base (void);
#endif /* CONFIG_LOGBUFFER */