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kern: implement SvcCreateInterruptEvent

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Michael Scire 2020-07-14 03:26:02 -07:00 • committed by SciresM
parent b35380a942
commit 04f325cf5a
8 changed files with 239 additions and 8 deletions
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42
libraries/libmesosphere/source/svc/kern_svc_interrupt_event.cpp
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@ -21,20 +21,58 @@ namespace ams::kern::svc {
namespace {
constexpr bool IsValidInterruptType(ams::svc::InterruptType type) {
switch (type) {
case ams::svc::InterruptType_Edge:
case ams::svc::InterruptType_Level:
return true;
default:
return false;
}
}
Result CreateInterruptEvent(ams::svc::Handle *out, int32_t interrupt_id, ams::svc::InterruptType type) {
/* Validate the type. */
R_UNLESS(IsValidInterruptType(type), svc::ResultInvalidEnumValue());
/* Check whether the interrupt is allowed. */
auto &process = GetCurrentProcess();
R_UNLESS(process.IsPermittedInterrupt(interrupt_id), svc::ResultNotFound());
/* Get the current handle table. */
auto &handle_table = process.GetHandleTable();
/* Create the interrupt event. */
KInterruptEvent *event = KInterruptEvent::Create();
R_UNLESS(event != nullptr, svc::ResultOutOfResource());
/* Ensure that we cleanup the event on exit, leaving the only reference as the one in the handle table. */
ON_SCOPE_EXIT { event->Close(); };
/* Initialize the event. */
R_TRY(event->Initialize(interrupt_id, type));
/* Register the event. */
R_TRY(KInterruptEvent::Register(event));
/* Add the event to the handle table. */
R_TRY(handle_table.Add(out, event));
return ResultSuccess();
}
}
/* ============================= 64 ABI ============================= */
Result CreateInterruptEvent64(ams::svc::Handle *out_read_handle, int32_t interrupt_id, ams::svc::InterruptType interrupt_type) {
MESOSPHERE_PANIC("Stubbed SvcCreateInterruptEvent64 was called.");
return CreateInterruptEvent(out_read_handle, interrupt_id, interrupt_type);
}
/* ============================= 64From32 ABI ============================= */
Result CreateInterruptEvent64From32(ams::svc::Handle *out_read_handle, int32_t interrupt_id, ams::svc::InterruptType interrupt_type) {
MESOSPHERE_PANIC("Stubbed SvcCreateInterruptEvent64From32 was called.");
return CreateInterruptEvent(out_read_handle, interrupt_id, interrupt_type);
}
}