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      1 /*	$NetBSD: tosdefs.h,v 1.4 2008/04/28 20:23:15 martin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Leo Weppelman.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _LIBTOS_TOSDEFS_H
     33 #define _LIBTOS_TOSDEFS_H
     34 
     35 #include <sys/types.h>
     36 
     37 
     38 #include "kparamb.h"
     39 
     40 /*
     41  * TOS variables in low memory
     42  */
     43 struct _gem_mupb;
     44 struct _basepage;
     45 struct _osheader {
     46 	u_int16_t	 os_entry;
     47 	u_int16_t	 os_version;
     48 	void		 *reseth;
     49 	struct _osheader *os_beg;
     50 	void		 *os_end;
     51 	u_int32_t	 os_rsv1;
     52 	struct _gem_mupb *os_magic;
     53 	u_int32_t	 os_date;
     54 	u_int16_t	 os_conf;
     55 	u_int16_t	 os_dosdate;
     56 	char		 **p_root;
     57 	u_int8_t	 **pkbshift;
     58 	struct _basepage **p_run;
     59 	char		 *p_rsv2;
     60 };
     61 
     62 typedef	struct _osheader	OSH;
     63 
     64 #define	ADDR_P_COOKIE	((long**)0x5a0)	/* Pointer to cookie jar	*/
     65 #define	ADDR_OSHEAD	((OSH**)0x4f2)	/* Pointer Os-header		*/
     66 #define	ADDR_PHYSTOP	((long*)0x42e)	/* End of ST-ram		*/
     67 #define	ADDR_RAMTOP	((long*)0x5a4)	/* End of TT-ram (unofficial)	*/
     68 #define	ADDR_CHKRAMTOP	((long*)0x5a8)	/*  above is valid (unofficial)	*/
     69 
     70 #define	RAMTOP_MAGIC	(0x1357bd13)	/* Magic no. for ADDR_CHKRAMTOP	*/
     71 
     72 #define	TTRAM_BASE	(0x1000000)	/* Fastram always starts here	*/
     73 #define	CTRAM_BASE	(0x4000000)	/*  ... except on CT2 boards:	*/
     74 					/*         Logical : TTRAM_BASE */
     75 					/*         Physical: CTRAM_BASE */
     76 
     77 /*
     78  * Kernel parameter block
     79  */
     80 typedef struct osdsc {
     81 	const char *	ostype;
     82 	const char *	osname;
     83 	unsigned	rootfs;
     84 	struct kparamb 	kp;
     85 } osdsc_t;
     86 
     87 #define	ksize		kp.ksize
     88 #define	kstart		kp.kp
     89 #define	kentry		kp.entry
     90 #define	k_esym		kp.esym_loc
     91 #define	stmem_size	kp.stmem_size
     92 #define	ttmem_size	kp.ttmem_size
     93 #define	ttmem_start	kp.ttmem_start
     94 #define	cputype		kp.bootflags
     95 #define	boothowto	kp.boothowto
     96 
     97 #endif /* !_LIBTOS_TOSDEFS_H */
     98