I8259.py (5632:65132fd646c6) I8259.py (5634:22553ec2f177)
1# Copyright (c) 2008 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright

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24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Gabe Black
28
29from m5.params import *
30from m5.proxy import *
31from Device import BasicPioDevice
1# Copyright (c) 2008 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright

--- 15 unchanged lines hidden (view full) ---

24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Gabe Black
28
29from m5.params import *
30from m5.proxy import *
31from Device import BasicPioDevice
32from X86IntPin import X86IntPin
32
33
34class X86I8259CascadeMode(Enum):
35 map = {'I8259Master' : 0,
36 'I8259Slave' : 1,
37 'I8259Single' : 2
38 }
39
33class I8259(BasicPioDevice):
34 type = 'I8259'
35 cxx_class='X86ISA::I8259'
36 pio_latency = Param.Latency('1ns', "Programmed IO latency in simticks")
40class I8259(BasicPioDevice):
41 type = 'I8259'
42 cxx_class='X86ISA::I8259'
43 pio_latency = Param.Latency('1ns', "Programmed IO latency in simticks")
37 master = Param.I8259('The master PIC this PIC is cascaded with, if any')
44 output = Param.X86IntPin('The pin this I8259 drives')
45 mode = Param.X86I8259CascadeMode('How this I8259 is cascaded')
46
47 def pin(self, line):
48 return X86IntPin(device=self, line=line)