2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
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
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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.
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.
28 * Authors: Miguel Serrano
33 * Isa Fake Device implementation
40 #include "base/trace.hh"
41 #include "dev/isa_fake.hh"
42 #include "mem/packet.hh"
43 #include "mem/packet_access.hh"
44 #include "sim/builder.hh"
45 #include "sim/system.hh"
49 IsaFake::IsaFake(Params
*p
)
52 pioSize
= p
->pio_size
;
56 IsaFake::read(PacketPtr pkt
)
58 assert(pkt
->result
== Packet::Unknown
);
59 assert(pkt
->getAddr() >= pioAddr
&& pkt
->getAddr() < pioAddr
+ pioSize
);
61 DPRINTF(Tsunami
, "read va=%#x size=%d\n", pkt
->getAddr(), pkt
->getSize());
63 switch (pkt
->getSize()) {
64 pkt
->set(0xFFFFFFFFFFFFFFFFULL
);
66 case sizeof(uint32_t):
67 pkt
->set((uint32_t)0xFFFFFFFF);
69 case sizeof(uint16_t):
70 pkt
->set((uint16_t)0xFFFF);
73 pkt
->set((uint8_t)0xFF);
76 panic("invalid access size(?) for PCI configspace!\n");
78 pkt
->result
= Packet::Success
;
83 IsaFake::write(PacketPtr pkt
)
85 DPRINTF(Tsunami
, "write - va=%#x size=%d \n", pkt
->getAddr(), pkt
->getSize());
86 pkt
->result
= Packet::Success
;
90 BEGIN_DECLARE_SIM_OBJECT_PARAMS(IsaFake
)
93 Param
<Tick
> pio_latency
;
95 SimObjectParam
<Platform
*> platform
;
96 SimObjectParam
<System
*> system
;
98 END_DECLARE_SIM_OBJECT_PARAMS(IsaFake
)
100 BEGIN_INIT_SIM_OBJECT_PARAMS(IsaFake
)
102 INIT_PARAM(pio_addr
, "Device Address"),
103 INIT_PARAM(pio_latency
, "Programmed IO latency"),
104 INIT_PARAM(pio_size
, "Size of address range"),
105 INIT_PARAM(platform
, "platform"),
106 INIT_PARAM(system
, "system object")
108 END_INIT_SIM_OBJECT_PARAMS(IsaFake
)
110 CREATE_SIM_OBJECT(IsaFake
)
112 IsaFake::Params
*p
= new IsaFake::Params
;
113 p
->name
= getInstanceName();
114 p
->pio_addr
= pio_addr
;
115 p
->pio_delay
= pio_latency
;
116 p
->pio_size
= pio_size
;
117 p
->platform
= platform
;
119 return new IsaFake(p
);
122 REGISTER_SIM_OBJECT("IsaFake", IsaFake
)