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44 #include "dev/io_device.hh"
46 #include "base/trace.hh"
47 #include "debug/AddrRanges.hh"
48 #include "sim/system.hh"
50 PioPort::PioPort(PioDevice
*dev
)
51 : SimpleTimingPort(dev
->name() + ".pio", dev
), device(dev
)
56 PioPort::recvAtomic(PacketPtr pkt
)
58 // technically the packet only reaches us after the header delay,
59 // and typically we also need to deserialise any payload
60 Tick receive_delay
= pkt
->headerDelay
+ pkt
->payloadDelay
;
61 pkt
->headerDelay
= pkt
->payloadDelay
= 0;
63 const Tick
delay(pkt
->isRead() ? device
->read(pkt
) : device
->write(pkt
));
64 assert(pkt
->isResponse() || pkt
->isError());
65 return delay
+ receive_delay
;
69 PioPort::getAddrRanges() const
71 return device
->getAddrRanges();
74 PioDevice::PioDevice(const Params
*p
)
75 : MemObject(p
), sys(p
->system
), pioPort(this)
78 PioDevice::~PioDevice()
85 if (!pioPort
.isConnected())
86 panic("Pio port of %s not connected to anything!", name());
87 pioPort
.sendRangeChange();
91 PioDevice::getSlavePort(const std::string
&if_name
, PortID idx
)
93 if (if_name
== "pio") {
96 return MemObject::getSlavePort(if_name
, idx
);
99 BasicPioDevice::BasicPioDevice(const Params
*p
, Addr size
)
100 : PioDevice(p
), pioAddr(p
->pio_addr
), pioSize(size
),
101 pioDelay(p
->pio_latency
)
105 BasicPioDevice::getAddrRanges() const
107 assert(pioSize
!= 0);
108 AddrRangeList ranges
;
109 DPRINTF(AddrRanges
, "registering range: %#x-%#x\n", pioAddr
, pioSize
);
110 ranges
.push_back(RangeSize(pioAddr
, pioSize
));