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Kernel: Add FieldElement access attribute for AML interpreter

This commit is contained in:
Bananymous 2024-04-12 01:49:15 +03:00
parent afb1d7ef0c
commit dd8060d64f
1 changed files with 72 additions and 2 deletions
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74
kernel/kernel/ACPI/AML/Field.cpp
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@ -53,10 +53,60 @@ namespace Kernel::ACPI
return true; return true;
} }
case 0x01: case 0x01:
{
context.field_pkg = context.field_pkg.slice(1);
if (context.field_pkg.size() < 2)
{
AML_ERROR("Invalid FieldElement length for access field");
return false;
}
context.field_rules.access_type = static_cast<AML::FieldRules::AccessType>(context.field_pkg[0] & 0x0F);
context.field_rules.access_attrib = static_cast<AML::FieldRules::AccessAttrib>((context.field_pkg[0] >> 6) & 0x03);
context.field_pkg = context.field_pkg.slice(1);
context.field_rules.access_length = context.field_pkg[0];
context.field_pkg = context.field_pkg.slice(1);
return true;
}
case 0x02: case 0x02:
case 0x03: AML_TODO("Field element Connection", context.field_pkg[0]);
AML_TODO("Field element {2H}", context.field_pkg[0]);
return false; return false;
case 0x03:
{
context.field_pkg = context.field_pkg.slice(1);
if (context.field_pkg.size() < 3)
{
AML_ERROR("Invalid FieldElement length for extended access field");
return false;
}
context.field_rules.access_type = static_cast<AML::FieldRules::AccessType>(context.field_pkg[0] & 0x0F);
context.field_rules.lock_rule = static_cast<AML::FieldRules::LockRule>((context.field_pkg[0] >> 4) & 0x01);
context.field_rules.update_rule = static_cast<AML::FieldRules::UpdateRule>((context.field_pkg[0] >> 5) & 0x03);
context.field_pkg = context.field_pkg.slice(1);
if (context.field_pkg[0] == 0x0B)
context.field_rules.access_attrib = AML::FieldRules::AccessAttrib::Bytes;
else if (context.field_pkg[0] == 0x0E)
context.field_rules.access_attrib = AML::FieldRules::AccessAttrib::RawBytes;
else if (context.field_pkg[0] == 0x0F)
context.field_rules.access_attrib = AML::FieldRules::AccessAttrib::RawProcessBytes;
else
{
AML_ERROR("Invalid FieldElement extended access field attribute");
return false;
}
context.field_pkg = context.field_pkg.slice(1);
context.field_rules.access_length = context.field_pkg[0];
context.field_pkg = context.field_pkg.slice(1);
return true;
}
default: default:
{ {
auto element_name = AML::NameSeg::parse(context.field_pkg); auto element_name = AML::NameSeg::parse(context.field_pkg);
@ -396,6 +446,11 @@ namespace Kernel::ACPI
BAN::Optional<uint64_t> AML::FieldElement::evaluate_internal() BAN::Optional<uint64_t> AML::FieldElement::evaluate_internal()
{ {
if (access_rules.access_attrib != FieldRules::AccessAttrib::Normal)
{
AML_TODO("FieldElement with access attribute {}", static_cast<uint8_t>(access_rules.access_attrib));
return {};
}
auto access_size = determine_access_size(access_rules.access_type); auto access_size = determine_access_size(access_rules.access_type);
if (!access_size.has_value()) if (!access_size.has_value())
return {}; return {};
@ -407,6 +462,11 @@ namespace Kernel::ACPI
bool AML::FieldElement::store_internal(uint64_t value) bool AML::FieldElement::store_internal(uint64_t value)
{ {
if (access_rules.access_attrib != FieldRules::AccessAttrib::Normal)
{
AML_TODO("FieldElement with access attribute {}", static_cast<uint8_t>(access_rules.access_attrib));
return {};
}
auto access_size = determine_access_size(access_rules.access_type); auto access_size = determine_access_size(access_rules.access_type);
if (!access_size.has_value()) if (!access_size.has_value())
return false; return false;
@ -525,6 +585,11 @@ namespace Kernel::ACPI
BAN::RefPtr<AML::Node> AML::IndexFieldElement::evaluate() BAN::RefPtr<AML::Node> AML::IndexFieldElement::evaluate()
{ {
if (access_rules.access_attrib != FieldRules::AccessAttrib::Normal)
{
AML_TODO("FieldElement with access attribute {}", static_cast<uint8_t>(access_rules.access_attrib));
return {};
}
auto access_size = determine_access_size(access_rules.access_type); auto access_size = determine_access_size(access_rules.access_type);
if (!access_size.has_value()) if (!access_size.has_value())
return {}; return {};
@ -554,6 +619,11 @@ namespace Kernel::ACPI
bool AML::IndexFieldElement::store(BAN::RefPtr<Node> source) bool AML::IndexFieldElement::store(BAN::RefPtr<Node> source)
{ {
if (access_rules.access_attrib != FieldRules::AccessAttrib::Normal)
{
AML_TODO("FieldElement with access attribute {}", static_cast<uint8_t>(access_rules.access_attrib));
return {};
}
auto source_integer = source->as_integer(); auto source_integer = source->as_integer();
if (!source_integer.has_value()) if (!source_integer.has_value())
{ {