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
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.
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 case sizeof(uint64_t):
65 pkt
->set(0xFFFFFFFFFFFFFFFFULL
);
67 case sizeof(uint32_t):
68 pkt
->set((uint32_t)0xFFFFFFFF);
70 case sizeof(uint16_t):
71 pkt
->set((uint16_t)0xFFFF);
74 pkt
->set((uint8_t)0xFF);
77 panic("invalid access size(?) for PCI configspace!\n");
79 pkt
->result
= Packet::Success
;
84 IsaFake::write(PacketPtr pkt
)
86 DPRINTF(Tsunami
, "write - va=%#x size=%d \n", pkt
->getAddr(), pkt
->getSize());
87 pkt
->result
= Packet::Success
;
91 BEGIN_DECLARE_SIM_OBJECT_PARAMS(IsaFake
)
94 Param
<Tick
> pio_latency
;
96 SimObjectParam
<Platform
*> platform
;
97 SimObjectParam
<System
*> system
;
99 END_DECLARE_SIM_OBJECT_PARAMS(IsaFake
)
101 BEGIN_INIT_SIM_OBJECT_PARAMS(IsaFake
)
103 INIT_PARAM(pio_addr
, "Device Address"),
104 INIT_PARAM(pio_latency
, "Programmed IO latency"),
105 INIT_PARAM(pio_size
, "Size of address range"),
106 INIT_PARAM(platform
, "platform"),
107 INIT_PARAM(system
, "system object")
109 END_INIT_SIM_OBJECT_PARAMS(IsaFake
)
111 CREATE_SIM_OBJECT(IsaFake
)
113 IsaFake::Params
*p
= new IsaFake::Params
;
114 p
->name
= getInstanceName();
115 p
->pio_addr
= pio_addr
;
116 p
->pio_delay
= pio_latency
;
117 p
->pio_size
= pio_size
;
118 p
->platform
= platform
;
120 return new IsaFake(p
);
123 REGISTER_SIM_OBJECT("IsaFake", IsaFake
)