1/*
2 * Copyright (c) 2012 ARM Limited
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2006 The Regents of The University of Michigan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Ali Saidi
41 * Nathan Binkert
42 */
43
44#include "base/trace.hh"
45#include "debug/BusAddrRanges.hh"
46#include "dev/io_device.hh"
47#include "sim/system.hh"
48
49PioPort::PioPort(PioDevice *dev)
50 : SimpleTimingPort(dev->name() + ".pio", dev), device(dev)
51{
52}
53
54Tick
55PioPort::recvAtomic(PacketPtr pkt)
56{
| 1/*
2 * Copyright (c) 2012 ARM Limited
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2006 The Regents of The University of Michigan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Ali Saidi
41 * Nathan Binkert
42 */
43
44#include "base/trace.hh"
45#include "debug/BusAddrRanges.hh"
46#include "dev/io_device.hh"
47#include "sim/system.hh"
48
49PioPort::PioPort(PioDevice *dev)
50 : SimpleTimingPort(dev->name() + ".pio", dev), device(dev)
51{
52}
53
54Tick
55PioPort::recvAtomic(PacketPtr pkt)
56{
|
57 return pkt->isRead() ? device->read(pkt) : device->write(pkt);
58}
59
60AddrRangeList
61PioPort::getAddrRanges() const
62{
63 return device->getAddrRanges();
64}
65
66PioDevice::PioDevice(const Params *p)
67 : MemObject(p), sys(p->system), pioPort(this)
68{}
69
70PioDevice::~PioDevice()
71{
72}
73
74void
75PioDevice::init()
76{
77 if (!pioPort.isConnected())
78 panic("Pio port of %s not connected to anything!", name());
79 pioPort.sendRangeChange();
80}
81
82BaseSlavePort &
83PioDevice::getSlavePort(const std::string &if_name, PortID idx)
84{
85 if (if_name == "pio") {
86 return pioPort;
87 }
88 return MemObject::getSlavePort(if_name, idx);
89}
90
91unsigned int
92PioDevice::drain(DrainManager *dm)
93{
94 unsigned int count;
95 count = pioPort.drain(dm);
96 if (count)
97 setDrainState(Drainable::Draining);
98 else
99 setDrainState(Drainable::Drained);
100 return count;
101}
102
103BasicPioDevice::BasicPioDevice(const Params *p)
104 : PioDevice(p), pioAddr(p->pio_addr), pioSize(0),
105 pioDelay(p->pio_latency)
106{}
107
108AddrRangeList
109BasicPioDevice::getAddrRanges() const
110{
111 assert(pioSize != 0);
112 AddrRangeList ranges;
113 DPRINTF(BusAddrRanges, "registering range: %#x-%#x\n", pioAddr, pioSize);
114 ranges.push_back(RangeSize(pioAddr, pioSize));
115 return ranges;
116}
| 60 return pkt->isRead() ? device->read(pkt) : device->write(pkt);
61}
62
63AddrRangeList
64PioPort::getAddrRanges() const
65{
66 return device->getAddrRanges();
67}
68
69PioDevice::PioDevice(const Params *p)
70 : MemObject(p), sys(p->system), pioPort(this)
71{}
72
73PioDevice::~PioDevice()
74{
75}
76
77void
78PioDevice::init()
79{
80 if (!pioPort.isConnected())
81 panic("Pio port of %s not connected to anything!", name());
82 pioPort.sendRangeChange();
83}
84
85BaseSlavePort &
86PioDevice::getSlavePort(const std::string &if_name, PortID idx)
87{
88 if (if_name == "pio") {
89 return pioPort;
90 }
91 return MemObject::getSlavePort(if_name, idx);
92}
93
94unsigned int
95PioDevice::drain(DrainManager *dm)
96{
97 unsigned int count;
98 count = pioPort.drain(dm);
99 if (count)
100 setDrainState(Drainable::Draining);
101 else
102 setDrainState(Drainable::Drained);
103 return count;
104}
105
106BasicPioDevice::BasicPioDevice(const Params *p)
107 : PioDevice(p), pioAddr(p->pio_addr), pioSize(0),
108 pioDelay(p->pio_latency)
109{}
110
111AddrRangeList
112BasicPioDevice::getAddrRanges() const
113{
114 assert(pioSize != 0);
115 AddrRangeList ranges;
116 DPRINTF(BusAddrRanges, "registering range: %#x-%#x\n", pioAddr, pioSize);
117 ranges.push_back(RangeSize(pioAddr, pioSize));
118 return ranges;
119}
|