mirror of https://github.com/dzavalishin/oskit/
125 lines
3.1 KiB
C
Executable File
125 lines
3.1 KiB
C
Executable File
/*
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* Copyright (c) 1996, 1998, 1999 University of Utah and the Flux Group.
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* All rights reserved.
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*
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* This file is part of the Flux OSKit. The OSKit is free software, also known
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* as "open source;" you can redistribute it and/or modify it under the terms
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* of the GNU General Public License (GPL), version 2, as published by the Free
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* Software Foundation (FSF). To explore alternate licensing terms, contact
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* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
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*
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* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
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* received a copy of the GPL along with the OSKit; see the file COPYING. If
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* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
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*/
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/*
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* osenv_mem interface object. See also mem.c in this directory.
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* Together, these will override the default osenv_mem interface
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* defined in the dev directory.
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <oskit/com.h>
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#include <oskit/dev/dev.h>
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#include <oskit/dev/osenv_mem.h>
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/*
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* There is one and only one memory interface in this implementation.
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*/
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static struct oskit_osenv_mem_ops osenv_mem_ops;
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static struct oskit_osenv_mem osenv_mem_object = {&osenv_mem_ops};
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static OSKIT_COMDECL
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mem_query(oskit_osenv_mem_t *s, const oskit_iid_t *iid, void **out_ihandle)
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{
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if (memcmp(iid, &oskit_iunknown_iid, sizeof(*iid)) == 0 ||
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memcmp(iid, &oskit_osenv_mem_iid, sizeof(*iid)) == 0) {
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*out_ihandle = s;
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return 0;
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}
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*out_ihandle = 0;
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return OSKIT_E_NOINTERFACE;
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};
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static OSKIT_COMDECL_U
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mem_addref(oskit_osenv_mem_t *s)
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{
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/* Only one object */
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return 1;
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}
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static OSKIT_COMDECL_U
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mem_release(oskit_osenv_mem_t *s)
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{
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/* Only one object */
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return 1;
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}
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static void * OSKIT_COMCALL
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mem_alloc(oskit_osenv_mem_t *o, oskit_size_t size,
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osenv_memflags_t flags, unsigned align)
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{
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return osenv_mem_alloc(size, flags, align);
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}
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static OSKIT_COMDECL_V
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mem_free(oskit_osenv_mem_t *o, void *block,
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osenv_memflags_t flags, oskit_size_t size)
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{
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osenv_mem_free(block, flags, size);
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}
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static oskit_addr_t OSKIT_COMCALL
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mem_getphys(oskit_osenv_mem_t *o, oskit_addr_t va)
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{
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return osenv_mem_get_phys(va);
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}
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static oskit_addr_t OSKIT_COMCALL
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mem_getvirt(oskit_osenv_mem_t *o, oskit_addr_t pa)
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{
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return osenv_mem_get_virt(pa);
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}
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static oskit_addr_t OSKIT_COMCALL
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mem_physmax(oskit_osenv_mem_t *o)
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{
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return osenv_mem_phys_max();
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}
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static OSKIT_COMDECL_U
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mem_mapphys(oskit_osenv_mem_t *o, oskit_addr_t pa,
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oskit_size_t size, void **addr, int flags)
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{
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return osenv_mem_map_phys(pa, size, addr, flags);
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}
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static struct oskit_osenv_mem_ops osenv_mem_ops = {
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mem_query,
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mem_addref,
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mem_release,
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mem_alloc,
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mem_free,
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mem_getphys,
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mem_getvirt,
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mem_physmax,
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mem_mapphys,
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};
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/*
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* Return a reference to the one and only memory interface object.
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*/
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oskit_osenv_mem_t *
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oskit_create_osenv_mem(void)
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{
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return &osenv_mem_object;
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}
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