66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/*
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* VMM IO map table
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*
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* COPYRIGHT (C) 2013, Shanghai Real-Thread Technology Co., Ltd
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*
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* This file is part of RT-Thread (http://www.rt-thread.org)
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* Maintainer: bernard.xiong <bernard.xiong at gmail.com>
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2013-06-15 Bernard the first verion
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*/
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#include <rtthread.h>
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#include "vmm.h"
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static struct vmm_iomap _vmm_iomap[RT_VMM_IOMAP_MAXNR];
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void vmm_iomap_init(struct vmm_iomap *iomap)
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{
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rt_memcpy(_vmm_iomap, iomap, sizeof(_vmm_iomap));
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}
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/* find virtual address according to name */
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unsigned long vmm_find_iomap(const char *name)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(_vmm_iomap); i++)
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{
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if (rt_strcmp(_vmm_iomap[i].name, name) == 0)
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return (unsigned long)_vmm_iomap[i].va;
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}
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return 0;
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}
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/* find virtual address according to physcal address */
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unsigned long vmm_find_iomap_by_pa(unsigned long pa)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(_vmm_iomap); i++)
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{
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if (_vmm_iomap[i].pa == pa)
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return (unsigned long)_vmm_iomap[i].va;
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}
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return 0;
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}
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