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
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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
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24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * Isa Fake Device implementation
37 #include "base/trace.hh"
38 #include "dev/isa_fake.hh"
39 #include "mem/packet.hh"
40 #include "sim/builder.hh"
41 #include "sim/system.hh"
45 IsaFake::IsaFake(Params
*p
)
48 pioSize
= p
->pio_size
;
52 IsaFake::read(Packet
*pkt
)
54 assert(pkt
->result
== Unknown
);
55 assert(pkt
->addr
>= pioAddr
&& pkt
->addr
< pioAddr
+ pioSize
);
57 pkt
->time
+= pioDelay
;
59 DPRINTF(Tsunami
, "read va=%#x size=%d\n", pkt
->addr
, pkt
->size
);
62 pkt
->set(0xFFFFFFFFFFFFFFFFULL
);
64 case sizeof(uint32_t):
65 pkt
->set((uint32_t)0xFFFFFFFF);
67 case sizeof(uint16_t):
68 pkt
->set((uint16_t)0xFFFF);
71 pkt
->set((uint8_t)0xFF);
74 panic("invalid access size(?) for PCI configspace!\n");
76 pkt
->result
= Success
;
81 IsaFake::write(Packet
*pkt
)
83 pkt
->time
+= pioDelay
;
84 DPRINTF(Tsunami
, "write - va=%#x size=%d \n", pkt
->addr
, pkt
->size
);
85 pkt
->result
= Success
;
89 BEGIN_DECLARE_SIM_OBJECT_PARAMS(IsaFake
)
92 Param
<Tick
> pio_latency
;
94 SimObjectParam
<Platform
*> platform
;
95 SimObjectParam
<System
*> system
;
97 END_DECLARE_SIM_OBJECT_PARAMS(IsaFake
)
99 BEGIN_INIT_SIM_OBJECT_PARAMS(IsaFake
)
101 INIT_PARAM(pio_addr
, "Device Address"),
102 INIT_PARAM(pio_latency
, "Programmed IO latency"),
103 INIT_PARAM(pio_size
, "Size of address range"),
104 INIT_PARAM(platform
, "platform"),
105 INIT_PARAM(system
, "system object")
107 END_INIT_SIM_OBJECT_PARAMS(IsaFake
)
109 CREATE_SIM_OBJECT(IsaFake
)
111 IsaFake::Params
*p
= new IsaFake::Params
;
112 p
->name
= getInstanceName();
113 p
->pio_addr
= pio_addr
;
114 p
->pio_delay
= pio_latency
;
115 p
->pio_size
= pio_size
;
116 p
->platform
= platform
;
118 return new IsaFake(p
);
121 REGISTER_SIM_OBJECT("IsaFake", IsaFake
)