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      1 /*	$NetBSD: memswitch.h,v 1.5 2018/01/26 09:38:26 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Minoura Makoto.
      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 /* memswitch.h */
     33 
     34 #include <paths.h>
     35 
     36 #ifndef _PATH_DEVSRAM
     37 #define _PATH_DEVSRAM "/dev/sram"
     38 #endif
     39 
     40 #define PROP_MAGIC1 (0)
     41 #define PROP_MAGIC2 (1)
     42 #define MAGIC1	(0x82773638)
     43 #define MAGIC2	(0x30303057)
     44 #define MAXVALUELEN 100
     45 
     46 struct property;
     47 
     48 typedef int (*parse_t)(struct property*, const char*);
     49 typedef int (*print_t)(struct property*, char*);
     50 typedef int (*fill_t)(struct property*);
     51 typedef int (*flush_t)(struct property*);
     52 
     53 struct property {
     54 	const char *class;
     55 	const char *node;
     56 	int offset;
     57 	int size;
     58 	int value_valid;
     59 	union value {
     60 		unsigned char byte[4];
     61 		unsigned short word[2];
     62 		unsigned long longword;
     63 		void *pointer;
     64 	} current_value;
     65 	int modified;
     66 	union value modified_value;
     67 	union value default_value;
     68 	parse_t parse;
     69 	int min, max;
     70 	print_t print;
     71 	fill_t fill;
     72 	flush_t flush;
     73 	const char *descr;
     74 };
     75 
     76 extern int number_of_props;
     77 extern struct property properties[];
     78 extern char *progname;
     79 extern u_int8_t *current_values;
     80 extern u_int8_t *modified_values;
     81 
     82 void show_single(const char*);
     83 void show_all(void);
     84 void modify_single(const char*);
     85 void help_single(const char*);
     86 void alloc_current_values(void);
     87 void alloc_modified_values(void);
     88 void flush(void);
     89 int save(const char*);
     90 int restore(const char*);
     91