field_unit.c File Reference

#include <kernel/acpi/aml/runtime/field_unit.h>
#include <kernel/acpi/aml/predefined.h>
#include <kernel/acpi/aml/runtime/access_type.h>
#include <kernel/acpi/aml/runtime/method.h>
#include <kernel/acpi/aml/state.h>
#include <kernel/acpi/aml/to_string.h>
#include <kernel/cpu/port.h>
#include <kernel/drivers/pci/pci_config.h>
#include <kernel/log/log.h>
#include <kernel/mem/vmm.h>
#include <errno.h>

Go to the source code of this file.

Data Structures
struct	aml_region_handler_t

Macros
#define	AML_REGION_MAX   (sizeof(regionHandlers) / sizeof(regionHandlers[0]))

Enumerations
enum	aml_access_direction_t {   AML_ACCESS_READ ,   AML_ACCESS_WRITE }

Functions
static void *	aml_ensure_mem_is_mapped (uint64_t address, aml_bit_size_t accessSize)
static uint64_t	aml_system_mem_read (aml_state_t *state, aml_opregion_obj_t *opregion, uintptr_t address, aml_bit_size_t accessSize, uint64_t *out)
static uint64_t	aml_system_mem_write (aml_state_t *state, aml_opregion_obj_t *opregion, uint64_t address, aml_bit_size_t accessSize, uint64_t value)
static uint64_t	aml_system_io_read (aml_state_t *state, aml_opregion_obj_t *opregion, uint64_t address, aml_bit_size_t accessSize, uint64_t *out)
static uint64_t	aml_system_io_write (aml_state_t *state, aml_opregion_obj_t *opregion, uint64_t address, aml_bit_size_t accessSize, uint64_t value)
static uint64_t	aml_pci_get_params (aml_state_t *state, aml_opregion_obj_t *opregion, pci_segment_group_t *segmentGroup, pci_bus_t *bus, pci_slot_t *slot, pci_function_t *function)
static uint64_t	aml_pci_config_read (aml_state_t *state, aml_opregion_obj_t *opregion, uint64_t address, aml_bit_size_t accessSize, uint64_t *out)
static uint64_t	aml_pci_config_write (aml_state_t *state, aml_opregion_obj_t *opregion, uint64_t address, aml_bit_size_t accessSize, uint64_t value)
static uint64_t	aml_opregion_read (aml_state_t *state, aml_opregion_obj_t *opregion, uint64_t address, aml_bit_size_t accessSize, uint64_t *out)
static uint64_t	aml_opregion_write (aml_state_t *state, aml_opregion_obj_t *opregion, uint64_t address, aml_bit_size_t accessSize, uint64_t value)
static uint64_t	aml_get_aligned_byte_offset (aml_bit_size_t bitOffset, aml_bit_size_t accessSize)
static uint64_t	aml_generic_field_read_at (aml_state_t *state, aml_field_unit_obj_t *fieldUnit, aml_bit_size_t accessSize, uint64_t byteOffset, uint64_t *out)
static uint64_t	aml_generic_field_write_at (aml_state_t *state, aml_field_unit_obj_t *fieldUnit, aml_bit_size_t accessSize, uint64_t byteOffset, uint64_t value)
static uint64_t	aml_field_unit_access (aml_state_t *state, aml_field_unit_obj_t *fieldUnit, aml_object_t *data, aml_access_direction_t direction)
uint64_t	aml_field_unit_load (aml_state_t *state, aml_field_unit_obj_t *fieldUnit, aml_object_t *out)
	Read the value stored in a FieldUnit. FieldUnits include Fields, IndexFields and BankFields.
uint64_t	aml_field_unit_store (aml_state_t *state, aml_field_unit_obj_t *fieldUnit, aml_object_t *in)
	Write a value to a FieldUnit. FieldUnits include Fields, IndexFields and BankFields.

Variables
static aml_region_handler_t	regionHandlers []

Macro Definition Documentation

AML_REGION_MAX

#define AML_REGION_MAX   (sizeof(regionHandlers) / sizeof(regionHandlers[0]))

Definition at line 316 of file field_unit.c.

Enumeration Type Documentation

aml_access_direction_t

enum aml_access_direction_t

Enumerator
AML_ACCESS_READ
AML_ACCESS_WRITE

Definition at line 354 of file field_unit.c.

Function Documentation

aml_ensure_mem_is_mapped()

static void * aml_ensure_mem_is_mapped ( uint64_t  address, aml_bit_size_t  accessSize  )

static

Definition at line 23 of file field_unit.c.

References address, EIO, errno, LOG_ERR, NULL, PAGE_SIZE, PML_GLOBAL, PML_LOWER_TO_HIGHER, PML_PRESENT, PML_WRITE, and vmm_map().

Referenced by aml_system_mem_read(), and aml_system_mem_write().

aml_field_unit_access()

static uint64_t aml_field_unit_access ( aml_state_t *  state, aml_field_unit_obj_t *  fieldUnit, aml_object_t *  data, aml_access_direction_t  direction  )

static

Definition at line 461 of file field_unit.c.

References aml_field_flags_t::accessType, AML_ACCESS_READ, AML_ACCESS_WRITE, AML_FIELD_UNIT_BANK_FIELD, AML_FIELD_UNIT_INDEX_FIELD, aml_field_unit_store(), aml_generic_field_read_at(), aml_generic_field_write_at(), aml_get_access_size(), aml_get_aligned_byte_offset(), aml_gl_get(), AML_LOCK_RULE_LOCK, aml_mutex_acquire(), aml_mutex_release(), aml_object_get_bits_at(), aml_object_set_bits_at(), AML_UPDATE_RULE_PRESERVE, AML_UPDATE_RULE_WRITE_AS_ONES, AML_UPDATE_RULE_WRITE_AS_ZEROS, aml_field_unit_obj_t::bank, aml_field_unit_obj_t::bankValue, aml_field_unit_obj_t::bitOffset, aml_field_unit_obj_t::bitSize, CLOCKS_NEVER, aml_field_unit_obj_t::data, data, EINVAL, ERR, errno, aml_field_unit_obj_t::fieldFlags, aml_field_unit_obj_t::fieldType, globalMutex, aml_field_flags_t::lockRule, LOG_ERR, MIN, aml_mutex_obj_t::mutex, NULL, aml_field_unit_obj_t::opregion, aml_opregion_obj_t::space, aml_mutex_obj_t::syncLevel, UINT64_C, UINT64_MAX, and aml_field_flags_t::updateRule.

Referenced by aml_field_unit_load(), and aml_field_unit_store().

aml_generic_field_read_at()

static uint64_t aml_generic_field_read_at ( aml_state_t *  state, aml_field_unit_obj_t *  fieldUnit, aml_bit_size_t  accessSize, uint64_t  byteOffset, uint64_t *  out  )

static

Definition at line 360 of file field_unit.c.

References address, AML_FIELD_UNIT_BANK_FIELD, AML_FIELD_UNIT_FIELD, AML_FIELD_UNIT_INDEX_FIELD, aml_field_unit_load(), aml_field_unit_store(), AML_INTEGER, aml_integer_set(), aml_object_clear(), aml_object_new(), aml_opregion_read(), assert, aml_field_unit_obj_t::data, DEREF_DEFER, EINVAL, ERR, errno, aml_field_unit_obj_t::fieldType, aml_field_unit_obj_t::index, aml_object_t::integer, LOG_ERR, NULL, aml_opregion_obj_t::offset, aml_field_unit_obj_t::opregion, and aml_integer_obj_t::value.

Referenced by aml_field_unit_access().

aml_generic_field_write_at()

static uint64_t aml_generic_field_write_at ( aml_state_t *  state, aml_field_unit_obj_t *  fieldUnit, aml_bit_size_t  accessSize, uint64_t  byteOffset, uint64_t  value  )

static

Definition at line 410 of file field_unit.c.

References address, AML_FIELD_UNIT_BANK_FIELD, AML_FIELD_UNIT_FIELD, AML_FIELD_UNIT_INDEX_FIELD, aml_field_unit_store(), aml_integer_set(), aml_object_clear(), aml_object_new(), aml_opregion_write(), aml_field_unit_obj_t::data, DEREF_DEFER, EINVAL, ERR, errno, aml_field_unit_obj_t::fieldType, aml_field_unit_obj_t::index, LOG_ERR, NULL, aml_opregion_obj_t::offset, and aml_field_unit_obj_t::opregion.

Referenced by aml_field_unit_access().

aml_get_aligned_byte_offset()

static uint64_t aml_get_aligned_byte_offset ( aml_bit_size_t  bitOffset, aml_bit_size_t  accessSize  )

inlinestatic

Definition at line 348 of file field_unit.c.

Referenced by aml_field_unit_access().

aml_opregion_read()

static uint64_t aml_opregion_read ( aml_state_t *  state, aml_opregion_obj_t *  opregion, uint64_t  address, aml_bit_size_t  accessSize, uint64_t *  out  )

inlinestatic

Definition at line 318 of file field_unit.c.

References address, AML_REGION_MAX, aml_region_space_to_string(), EINVAL, ENOSYS, ERR, errno, LOG_ERR, NULL, aml_region_handler_t::read, regionHandlers, and aml_opregion_obj_t::space.

Referenced by aml_generic_field_read_at().

aml_opregion_write()

static uint64_t aml_opregion_write ( aml_state_t *  state, aml_opregion_obj_t *  opregion, uint64_t  address, aml_bit_size_t  accessSize, uint64_t  value  )

inlinestatic

Definition at line 336 of file field_unit.c.

References address, AML_REGION_MAX, aml_region_space_to_string(), ENOSYS, ERR, errno, LOG_ERR, NULL, regionHandlers, aml_opregion_obj_t::space, and aml_region_handler_t::write.

Referenced by aml_generic_field_write_at().

aml_pci_config_read()

static uint64_t aml_pci_config_read ( aml_state_t *  state, aml_opregion_obj_t *  opregion, uint64_t  address, aml_bit_size_t  accessSize, uint64_t *  out  )

static

Definition at line 246 of file field_unit.c.

References address, aml_pci_get_params(), ENOSYS, ERR, errno, LOG_ERR, pci_config_read16(), pci_config_read32(), and pci_config_read8().

aml_pci_config_write()

static uint64_t aml_pci_config_write ( aml_state_t *  state, aml_opregion_obj_t *  opregion, uint64_t  address, aml_bit_size_t  accessSize, uint64_t  value  )

static

Definition at line 279 of file field_unit.c.

References address, aml_pci_get_params(), ENOSYS, ERR, errno, LOG_ERR, pci_config_write16(), pci_config_write32(), and pci_config_write8().

aml_pci_get_params()

static uint64_t aml_pci_get_params ( aml_state_t *  state, aml_opregion_obj_t *  opregion, pci_segment_group_t *  segmentGroup, pci_bus_t *  bus, pci_slot_t *  slot, pci_function_t *  function  )

static

Definition at line 178 of file field_unit.c.

References aml_method_evaluate_integer(), AML_NAME, AML_NAME_TO_STRING, aml_namespace_find(), CONTAINER_OF, DEREF_DEFER, ERR, LOG_ERR, NULL, and aml_state_t::overlay.

Referenced by aml_pci_config_read(), and aml_pci_config_write().

aml_system_io_read()

static uint64_t aml_system_io_read ( aml_state_t *  state, aml_opregion_obj_t *  opregion, uint64_t  address, aml_bit_size_t  accessSize, uint64_t *  out  )

static

Definition at line 128 of file field_unit.c.

References address, ENOSYS, ERR, errno, LOG_ERR, port_inb(), port_inl(), and port_inw().

aml_system_io_write()

static uint64_t aml_system_io_write ( aml_state_t *  state, aml_opregion_obj_t *  opregion, uint64_t  address, aml_bit_size_t  accessSize, uint64_t  value  )

static

Definition at line 153 of file field_unit.c.

References address, ENOSYS, ERR, errno, LOG_ERR, port_outb(), port_outl(), and port_outw().

aml_system_mem_read()

static uint64_t aml_system_mem_read ( aml_state_t *  state, aml_opregion_obj_t *  opregion, uintptr_t  address, aml_bit_size_t  accessSize, uint64_t *  out  )

static

Definition at line 44 of file field_unit.c.

References address, aml_ensure_mem_is_mapped(), ENOSYS, ERR, errno, LOG_ERR, NULL, and VMM_IDENTITY_MAPPED_MIN.

aml_system_mem_write()

static uint64_t aml_system_mem_write ( aml_state_t *  state, aml_opregion_obj_t *  opregion, uint64_t  address, aml_bit_size_t  accessSize, uint64_t  value  )

static

Definition at line 86 of file field_unit.c.

References address, aml_ensure_mem_is_mapped(), ENOSYS, ERR, errno, LOG_ERR, NULL, and VMM_IDENTITY_MAPPED_MIN.

Variable Documentation

regionHandlers

aml_region_handler_t regionHandlers[]

static

Initial value:

= {
    [AML_REGION_SYSTEM_MEMORY] = {.read = aml_system_mem_read, .write = aml_system_mem_write},
    [AML_REGION_SYSTEM_IO] = {.read = aml_system_io_read, .write = aml_system_io_write},
    [AML_REGION_PCI_CONFIG] = {.read = aml_pci_config_read, .write = aml_pci_config_write},
}

Definition at line 310 of file field_unit.c.

Referenced by aml_opregion_read(), and aml_opregion_write().