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83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/* $NetBSD: dev_flash.c,v 1.6 2011/07/17 20:54:41 joerg Exp $ */
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/*
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* Copyright (c) 2003 Naoto Shimazaki.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NAOTO SHIMAZAKI AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE NAOTO OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: dev_flash.c,v 1.6 2011/07/17 20:54:41 joerg Exp $");
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#include <sys/param.h>
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#include <lib/libsa/stand.h>
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#include "extern.h"
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#define READ_CHUNK 0x10000
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int
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flash_strategy(void *devdata, int rw, daddr_t blk,
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size_t size, void *buf , size_t *rsize)
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{
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u_int8_t *src;
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size_t count;
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if (rw != F_READ)
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return EIO;
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src = (u_int8_t *) KERN_ROMBASE + dbtob(blk);
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count = size < READ_CHUNK ? size : READ_CHUNK;
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memcpy(buf, src, count);
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*rsize = count;
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return 0;
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}
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int
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flash_open(struct open_file *f, ...)
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{
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char *fname;
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char **file;
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va_list ap;
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va_start(ap, f);
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fname = va_arg(ap, char *);
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file = va_arg(ap, char **);
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va_end(ap);
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*file = NULL;
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return 0;
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}
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int
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flash_close(struct open_file *f)
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{
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return 0;
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}
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int
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flash_ioctl(struct open_file *f, u_long cmd, void *data)
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{
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return EIO;
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}
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