60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
/******************************************************************************
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* Copyright (c) 2004, 2008 IBM Corporation
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* All rights reserved.
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* This program and the accompanying materials
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* are made available under the terms of the BSD License
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* which accompanies this distribution, and is available at
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* http://www.opensource.org/licenses/bsd-license.php
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*
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* Contributors:
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* IBM Corporation - initial implementation
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*****************************************************************************/
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#include <stdint.h>
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#include <rtas.h>
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#include <of.h>
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#include <pci.h>
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#include <string.h>
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#include <kernel.h>
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#include <cpu.h>
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#include <cache.h>
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unsigned int read_io(void *addr, size_t sz)
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{
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unsigned int ret;
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switch (sz) {
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case 1:
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ret = ci_read_8(addr);
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break;
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case 2:
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ret = ci_read_16(addr);
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break;
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case 4:
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ret = ci_read_32(addr);
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break;
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default:
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ret = 0;
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}
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return ret;
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}
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int write_io(void *addr, unsigned int value, size_t sz)
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{
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switch (sz) {
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case 1:
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ci_write_8(addr, value);
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break;
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case 2:
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ci_write_16(addr, value);
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break;
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case 4:
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ci_write_32(addr, value);
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break;
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default:
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return -1;
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}
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return 0;
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}
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