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Kernel: Implement more AML method invocation stuff

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Method invocation is starting to come together. This implemenetation
can interpret some of the qemu's functions to enter ACPI mode.

PCI config space access is currently the one thing is between
entering ACPI mode.
This commit is contained in:
Bananymous
2024-04-10 01:52:14 +03:00
parent 23fa39121c
commit ff203d8d34
23 changed files with 619 additions and 108 deletions
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26
kernel/include/kernel/ACPI/AML/Device.h
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@@ -30,22 +30,27 @@ namespace Kernel::ACPI::AML
return ParseResult::Failure;
auto device = MUST(BAN::RefPtr<Device>::create(name_string->path.back()));
if (!context.root_namespace->add_named_object(context, name_string.value(), device))
if (!Namespace::root_namespace()->add_named_object(context, name_string.value(), device))
return ParseResult::Failure;
return device->enter_context_and_parse_term_list(context, name_string.value(), device_pkg.value());
}
void initialize(BAN::RefPtr<AML::Namespace> root_namespace)
void initialize()
{
bool run_ini = true;
bool init_children = true;
auto _sta = root_namespace->find_object(scope, NameString("_STA"sv));
auto _sta = Namespace::root_namespace()->find_object(scope, NameString("_STA"sv));
if (_sta && _sta->type == Node::Type::Method)
{
auto* method = static_cast<Method*>(_sta.ptr());
auto result = method->evaluate(root_namespace);
if (method->arg_count != 0)
{
AML_ERROR("Method {}._STA has {} arguments, expected 0", scope, method->arg_count);
return;
}
auto result = method->evaluate({});
if (!result.has_value())
{
AML_ERROR("Failed to evaluate {}._STA", scope);
@@ -60,6 +65,8 @@ namespace Kernel::ACPI::AML
if (!result_val.has_value())
{
AML_ERROR("Failed to evaluate {}._STA, return value could not be resolved to integer", scope);
AML_ERROR(" Return value: ");
result.value()->debug_print(0);
return;
}
run_ini = (result_val.value() & 0x01);
@@ -68,11 +75,16 @@ namespace Kernel::ACPI::AML
if (run_ini)
{
auto _ini = root_namespace->find_object(scope, NameString("_INI"sv));
auto _ini = Namespace::root_namespace()->find_object(scope, NameString("_INI"sv));
if (_ini && _ini->type == Node::Type::Method)
{
auto* method = static_cast<Method*>(_ini.ptr());
method->evaluate(root_namespace);
if (method->arg_count != 0)
{
AML_ERROR("Method {}._INI has {} arguments, expected 0", scope, method->arg_count);
return;
}
method->evaluate({});
}
}
@@ -83,7 +95,7 @@ namespace Kernel::ACPI::AML
if (child->type == Node::Type::Device)
{
auto* device = static_cast<Device*>(child.ptr());
device->initialize(root_namespace);
device->initialize();
}
}
}