Files
gem5/src/dev/x86/ide_ctrl.cc
Gabe Black 7a408e35fd dev,arch-x86: Add an x86/compatibility IDE controller.
This is essentially the same as the normal one, except it sets its
ProgIF bits to show that it works in compatibility mode only, with fixed
IO ports and fixed IRQs that it operates with which are outside of the
scope of the normal PCI mechanisms.

Change-Id: I69d04f5c9444e7e227588b96b7dd4123b2850e23
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/55586
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Gabe Black <gabe.black@gmail.com>
2022-02-26 01:59:50 +00:00

73 lines
2.7 KiB
C++

/*
* Copyright 2022 Google, Inc.
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*
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#include "dev/x86/ide_ctrl.hh"
namespace gem5
{
X86IdeController::X86IdeController(const Params &p) : IdeController(p)
{
for (int i = 0; i < p.port_int_primary_connection_count; i++) {
intPrimary.push_back(new IntSourcePin<X86IdeController>(
csprintf("%s.int_primary[%d]", name(), i), i, this));
}
for (int i = 0; i < p.port_int_secondary_connection_count; i++) {
intSecondary.push_back(new IntSourcePin<X86IdeController>(
csprintf("%s.int_secondary[%d]", name(), i), i, this));
}
}
void
X86IdeController::postInterrupt(bool is_primary)
{
auto &pin = is_primary ? intPrimary : intSecondary;
for (auto *wire: pin)
wire->raise();
}
void
X86IdeController::clearInterrupt(bool is_primary)
{
auto &pin = is_primary ? intPrimary : intSecondary;
for (auto *wire: pin)
wire->lower();
}
Port &
X86IdeController::getPort(const std::string &if_name, PortID idx)
{
if (if_name == "int_primary")
return *intPrimary.at(idx);
else if (if_name == "int_secondary")
return *intSecondary.at(idx);
else
return IdeController::getPort(if_name, idx);
}
} // namespace gem5