gem5  v22.1.0.0
speaker.hh
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28 
29 #ifndef __DEV_X86_SPEAKER_HH__
30 #define __DEV_X86_SPEAKER_HH__
31 
32 #include "base/bitunion.hh"
33 #include "dev/io_device.hh"
34 #include "params/PcSpeaker.hh"
35 
36 namespace gem5
37 {
38 
39 namespace X86ISA
40 {
41 
42 class I8254;
43 
44 class Speaker : public BasicPioDevice
45 {
46  protected:
48 
49  BitUnion8(SpeakerControl)
50  Bitfield<0> gate;
51  Bitfield<1> speaker;
52  Bitfield<5> timer;
53  EndBitUnion(SpeakerControl)
54 
55  SpeakerControl controlVal;
56 
58 
59  public:
60  using Params = PcSpeakerParams;
61 
62  Speaker(const Params &p) : BasicPioDevice(p, 1),
63  latency(p.pio_latency), controlVal(0), timer(p.i8254)
64  {
65  }
66 
67  Tick read(PacketPtr pkt) override;
68 
69  Tick write(PacketPtr pkt) override;
70 
71  void serialize(CheckpointOut &cp) const override;
72  void unserialize(CheckpointIn &cp) override;
73 };
74 
75 } // namespace X86ISA
76 } // namespace gem5
77 
78 #endif //__DEV_X86_SPEAKER_HH__
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition: packet.hh:294
PioDeviceParams Params
Definition: io_device.hh:134
void unserialize(CheckpointIn &cp) override
Unserialize an object.
Definition: speaker.cc:85
EndBitUnion(SpeakerControl) SpeakerControl controlVal
Bitfield< 1 > speaker
Definition: speaker.hh:51
Tick read(PacketPtr pkt) override
Pure virtual function that the device must implement.
Definition: speaker.cc:42
void serialize(CheckpointOut &cp) const override
Serialize an object.
Definition: speaker.cc:79
BitUnion8(SpeakerControl) Bitfield< 0 > gate
Speaker(const Params &p)
Definition: speaker.hh:62
Bitfield< 5 > timer
Definition: speaker.hh:52
Tick write(PacketPtr pkt) override
Pure virtual function that the device must implement.
Definition: speaker.cc:58
Bitfield< 0 > p
Definition: pagetable.hh:151
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
std::ostream CheckpointOut
Definition: serialize.hh:66
uint64_t Tick
Tick count type.
Definition: types.hh:58

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