imported U-Boot Release 2009.08 from Freescale BSP L2.6.31_10.08.01

[karo-tx-uboot.git] / include / logbuff.h

diff --git a/include/logbuff.h b/include/logbuff.h
index 3acfc18a78272ea1a7aeef49510b8861244ea2af..ae7908ca3d20ca34e83200b51560c19fd03fc69a 100755 (executable)
--- a/include/logbuff.h
+++ b/include/logbuff.h
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2002
+ * (C) Copyright 2002-2007
  * Detlev Zundel, dzu@denx.de.
  *
  * See file CREDITS for list of people who contributed to this
@@ -25,17 +25,40 @@
 
 #ifdef CONFIG_LOGBUFFER
 
+#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)
 
-#define LOGBUFF_INITIALIZED    (1<<31)
+/* 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 */