ofw.h

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00001 /*
00002  * Copyright (C) 2005 Martin Decky
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  *
00009  * - Redistributions of source code must retain the above copyright
00010  *   notice, this list of conditions and the following disclaimer.
00011  * - Redistributions in binary form must reproduce the above copyright
00012  *   notice, this list of conditions and the following disclaimer in the
00013  *   documentation and/or other materials provided with the distribution.
00014  * - The name of the author may not be used to endorse or promote products
00015  *   derived from this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00018  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00019  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00020  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
00021  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00022  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00023  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00024  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00025  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00026  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00027  */
00028 
00035 #ifndef __OFW_H__
00036 #define __OFW_H__
00037 
00038 #include <arch/types.h>
00039 
00040 #define MAX_OFW_ARGS    10
00041 
00042 typedef __native ofw_arg_t;
00043 typedef int ihandle;
00044 typedef int phandle;
00045 
00049 typedef struct {
00050         const char *service;          
00051         __native nargs;               
00052         __native nret;                
00053         ofw_arg_t args[MAX_OFW_ARGS]; 
00054 } ofw_args_t;
00055 
00056 typedef void (*ofw_entry)(ofw_args_t *);
00057 
00058 extern ofw_entry ofw;
00059 
00060 extern void ofw_init(void);
00061 extern void ofw_done(void);
00062 extern __native ofw_call(const char *service, const int nargs, const int nret, ...);
00063 extern void ofw_putchar(const char ch);
00064 extern char ofw_getchar(void);
00065 extern phandle ofw_find_device(const char *name);
00066 extern int ofw_get_property(const phandle device, const char *name, void *buf, const int buflen);
00067 extern void *ofw_claim(const void *addr, const int size, const int align);
00068 
00069 #endif
00070 

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