1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 */
30
31/* @file
32 * Simple disk interface for the system console
33 */
34
35#include "dev/storage/simple_disk.hh"
36
37#include <fcntl.h>
38#include <sys/types.h>
39#include <sys/uio.h>
40#include <unistd.h>
41
42#include <cstring>
43#include <string>
44
45#include "base/logging.hh"
46#include "base/trace.hh"
47#include "debug/SimpleDisk.hh"
48#include "debug/SimpleDiskData.hh"
49#include "dev/storage/disk_image.hh"
50#include "mem/port_proxy.hh"
51#include "sim/system.hh"
52
53using namespace std;
54
55SimpleDisk::SimpleDisk(const Params *p)
56    : SimObject(p), system(p->system), image(p->disk)
57{}
58
59SimpleDisk::~SimpleDisk()
60{}
61
62
63void
64SimpleDisk::read(Addr addr, baddr_t block, int count) const
65{
66    uint8_t *data = new uint8_t[SectorSize * count];
67
68    if (count & (SectorSize - 1))
69        panic("Not reading a multiple of a sector (count = %d)", count);
70
71    for (int i = 0, j = 0; i < count; i += SectorSize, j++)
72        image->read(data + i, block + j);
73
74    system->physProxy.writeBlob(addr, data, count);
75
76    DPRINTF(SimpleDisk, "read  block=%#x len=%d\n", (uint64_t)block, count);
77    DDUMP(SimpleDiskData, data, count);
78
79    delete [] data;
80}
81
82void
83SimpleDisk::write(Addr addr, baddr_t block, int count)
84{
85    panic("unimplemented!\n");
86}
87
88SimpleDisk *
89SimpleDiskParams::create()
90{
91    return new SimpleDisk(this);
92}
93