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Kernel: Check Control Method Battery _STA bit 4 

This bit indicates wheter the battery is actually present.
This commit is contained in:
Bananymous 2024-12-19 01:53:10 +02:00
parent 00b0dcd306
commit d7b4f54983
1 changed files with 11 additions and 0 deletions
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11
kernel/kernel/ACPI/BatterySystem.cpp
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@ -119,6 +119,17 @@ namespace Kernel::ACPI
auto batteries = TRY(m_acpi_namespace.find_device_with_eisa_id("PNP0C0A"_sv));
for (const auto& battery : batteries)
{
auto [_0, sta_ref] = TRY(m_acpi_namespace.find_named_object(battery, TRY(AML::NameString::from_string("_STA"_sv))));
if (sta_ref != nullptr)
{
auto sta_result = AML::evaluate_node(_0, sta_ref->node);
if (sta_result.is_error() || sta_result.value().type != AML::Node::Type::Integer)
continue;
// "battery is present"
if (!(sta_result.value().as.integer.value & 0x10))
continue;
}
auto [_1, bif_ref] = TRY(m_acpi_namespace.find_named_object(battery, TRY(AML::NameString::from_string("_BIF"_sv))));
if (!bif_ref || bif_ref->node.type != AML::Node::Type::Method || bif_ref->node.as.method.arg_count != 0)
{