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Diffstat (limited to 'objects/Device.mpy')
-rw-r--r-- | objects/Device.mpy | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/objects/Device.mpy b/objects/Device.mpy new file mode 100644 index 000000000..babc8aa9d --- /dev/null +++ b/objects/Device.mpy @@ -0,0 +1,31 @@ +from FunctionalMemory import FunctionalMemory + +# This device exists only because there are some devices that I don't +# want to have a Platform parameter because it would cause a cycle in +# the C++ that cannot be easily solved. +# +# The real solution to this problem is to pass the ParamXXX structure +# to the constructor, but with the express condition that SimObject +# parameter values are not to be available at construction time. If +# some further configuration must be done, it must be done during the +# initialization phase at which point all SimObject pointers will be +# valid. +simobj FooPioDevice(FunctionalMemory): + abstract = True + type = 'PioDevice' + addr = Param.Addr("Device Address") + mmu = Param.MemoryController(Super, "Memory Controller") + io_bus = Param.Bus(NULL, "The IO Bus to attach to") + pio_latency = Param.Tick(1, "Programmed IO latency in bus cycles") + +simobj FooDmaDevice(FooPioDevice): + abstract = True + type = 'DmaDevice' + +simobj PioDevice(FooPioDevice): + abstract = True + platform = Param.Platform(Super, "Platform") + +simobj DmaDevice(PioDevice): + abstract = True + |