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Kernel: Implement ACPI reset

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Bananymous
2024-04-22 13:46:24 +03:00
parent 195c5e92a4
commit e7e1dd91c7
5 changed files with 167 additions and 46 deletions
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5
kernel/include/kernel/ACPI/ACPI.h
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@@ -32,6 +32,10 @@ namespace Kernel::ACPI
// This function will return only if there was an error
void poweroff();
// This function will reset the system
// This function will return only if there was an error
void reset();
void handle_irq() override;
private:
@@ -40,6 +44,7 @@ namespace Kernel::ACPI
FADT& fadt() { return *m_fadt; }
bool prepare_sleep(uint8_t sleep_state);
void acpi_event_task();
private:

37
kernel/include/kernel/ACPI/AML/Region.h
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@@ -9,20 +9,7 @@ namespace Kernel::ACPI::AML
struct OpRegion : public NamedObject
{
enum class RegionSpace
{
SystemMemory = 0,
SystemIO = 1,
PCIConfig = 2,
EmbeddedController = 3,
SMBus = 4,
SystemCMOS = 5,
PCIBarTarget = 6,
IPMI = 7,
GeneralPurposeIO = 8,
GenericSerialBus = 9,
PCC = 10,
};
using RegionSpace = GAS::AddressSpaceID;
RegionSpace region_space;
uint64_t region_offset;
uint64_t region_length;
@@ -95,17 +82,17 @@ namespace Kernel::ACPI::AML
BAN::StringView region_space_name;
switch (region_space)
{
case RegionSpace::SystemMemory: region_space_name = "SystemMemory"sv; break;
case RegionSpace::SystemIO: region_space_name = "SystemIO"sv; break;
case RegionSpace::PCIConfig: region_space_name = "PCIConfig"sv; break;
case RegionSpace::EmbeddedController: region_space_name = "EmbeddedController"sv; break;
case RegionSpace::SMBus: region_space_name = "SMBus"sv; break;
case RegionSpace::SystemCMOS: region_space_name = "SystemCMOS"sv; break;
case RegionSpace::PCIBarTarget: region_space_name = "PCIBarTarget"sv; break;
case RegionSpace::IPMI: region_space_name = "IPMI"sv; break;
case RegionSpace::GeneralPurposeIO: region_space_name = "GeneralPurposeIO"sv; break;
case RegionSpace::GenericSerialBus: region_space_name = "GenericSerialBus"sv; break;
case RegionSpace::PCC: region_space_name = "PCC"sv; break;
case RegionSpace::SystemMemory: region_space_name = "SystemMemory"sv; break;
case RegionSpace::SystemIO: region_space_name = "SystemIO"sv; break;
case RegionSpace::PCIConfig: region_space_name = "PCIConfig"sv; break;
case RegionSpace::EmbeddedController: region_space_name = "EmbeddedController"sv; break;
case RegionSpace::SMBus: region_space_name = "SMBus"sv; break;
case RegionSpace::SystemCMOS: region_space_name = "SystemCMOS"sv; break;
case RegionSpace::PCIBarTarget: region_space_name = "PCIBarTarget"sv; break;
case RegionSpace::IPMI: region_space_name = "IPMI"sv; break;
case RegionSpace::GeneralPurposeIO: region_space_name = "GeneralPurposeIO"sv; break;
case RegionSpace::GenericSerialBus: region_space_name = "GenericSerialBus"sv; break;
case RegionSpace::PlatformCommunicationChannel: region_space_name = "PlatformCommunicationChannel"sv; break;
default: region_space_name = "Unknown"sv; break;
}
AML_DEBUG_PRINT_INDENT(indent);

23
kernel/include/kernel/ACPI/Headers.h
View File

@@ -7,12 +7,31 @@ namespace Kernel::ACPI
struct GAS
{
uint8_t address_space_id;
enum class AddressSpaceID : uint8_t
{
SystemMemory = 0x00,
SystemIO = 0x01,
PCIConfig = 0x02,
EmbeddedController = 0x03,
SMBus = 0x04,
SystemCMOS = 0x05,
PCIBarTarget = 0x06,
IPMI = 0x07,
GeneralPurposeIO = 0x08,
GenericSerialBus = 0x09,
PlatformCommunicationChannel = 0x0A,
};
BAN::Optional<uint64_t> read();
bool write(uint64_t value);
AddressSpaceID address_space_id;
uint8_t register_bit_width;
uint8_t register_bit_offset;
uint8_t access_size;
uint64_t address;
} __attribute__((packed));
static_assert(sizeof(GAS) == 12);
struct SDTHeader
{
@@ -67,7 +86,7 @@ namespace Kernel::ACPI
uint16_t iapc_boot_arch;
uint8_t __reserved2;
uint32_t flags;
uint8_t reset_reg[12];
GAS reset_reg;
uint8_t reset_value;
uint16_t arm_boot_arch;
uint8_t fadt_minor_version;