field_unit.c File Reference

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

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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_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_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_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_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_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_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_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_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_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_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_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_t *fieldUnit, aml_object_t *data, aml_access_direction_t direction)
uint64_t	aml_field_unit_load (aml_state_t *state, aml_field_unit_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_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 324 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 362 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 25 of file field_unit.c.

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aml_system_mem_read()

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

static

Definition at line 46 of file field_unit.c.

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aml_system_mem_write()

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

static

Definition at line 88 of file field_unit.c.

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aml_system_io_read()

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

static

Definition at line 130 of file field_unit.c.

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aml_system_io_write()

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

static

Definition at line 155 of file field_unit.c.

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aml_pci_get_params()

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

static

Definition at line 180 of file field_unit.c.

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aml_pci_config_read()

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

static

Definition at line 254 of file field_unit.c.

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aml_pci_config_write()

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

static

Definition at line 287 of file field_unit.c.

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aml_opregion_read()

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

inlinestatic

Definition at line 326 of file field_unit.c.

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aml_opregion_write()

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

inlinestatic

Definition at line 344 of file field_unit.c.

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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 356 of file field_unit.c.

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aml_generic_field_read_at()

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

static

Definition at line 368 of file field_unit.c.

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aml_generic_field_write_at()

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

static

Definition at line 418 of file field_unit.c.

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aml_field_unit_access()

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

static

Todo:

"An Operation Region object implicitly supports Mutex synchronization. Updates to the object, or a Field data object for the region, will automatically synchronize on the Operation Region object;" - Section 19.6.100

Definition at line 469 of file field_unit.c.

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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 318 of file field_unit.c.