[J-u-boot.git] / include / logbuff.h

/*
 * (C) Copyright 2002-2007
 * Detlev Zundel, [email protected].
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */
#ifndef _LOGBUFF_H
#define _LOGBUFF_H

#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)

/* 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 */

#endif /* _LOGBUFF_H */
Commit	Line	Data
56f94be3	1	/*
2dc64451	2	* (C) Copyright 2002-2007
56f94be3 WD	3	* Detlev Zundel, [email protected].
56f94be3 WD	4	*
1a459660	5	* SPDX-License-Identifier: GPL-2.0+
56f94be3 WD	6	*/
	7	#ifndef _LOGBUFF_H
	8	#define _LOGBUFF_H
	9
	10	#ifdef CONFIG_LOGBUFFER
	11
2dc64451	12	#define LOGBUFF_MAGIC 0xc0de4ced /* Forced by code, eh! */
228f29ac WD	13	#define LOGBUFF_LEN (16384) /* Must be 16k right now */
	14	#define LOGBUFF_MASK (LOGBUFF_LEN-1)
	15	#define LOGBUFF_OVERHEAD (4096) /* Logbuffer overhead for extra info */
	16	#define LOGBUFF_RESERVE (LOGBUFF_LEN+LOGBUFF_OVERHEAD)
	17
2dc64451 IL	18	/* The mapping used here has to be the same as in setup_ext_logbuff ()
	19	in linux/kernel/printk */
	20
	21	typedef struct {
	22	union {
	23	struct {
	24	unsigned long tag;
	25	unsigned long start;
	26	unsigned long con;
	27	unsigned long end;
	28	unsigned long chars;
	29	} v2;
	30	struct {
	31	unsigned long dummy;
	32	unsigned long tag;
	33	unsigned long start;
	34	unsigned long size;
	35	unsigned long chars;
	36	} v1;
	37	};
	38	unsigned char buf[0];
	39	} logbuff_t;
	40
56f94be3	41	int drv_logbuff_init (void);
228f29ac	42	void logbuff_init_ptrs (void);
56f94be3 WD	43	void logbuff_log(char *msg);
56f94be3 WD	44	void logbuff_reset (void);
95d449ad	45	unsigned long logbuffer_base (void);
56f94be3 WD	46
	47	#endif /* CONFIG_LOGBUFFER */
	48
	49	#endif /* _LOGBUFF_H */