Device Structure

include/device.h View source View on GitHub

Structs

device_physical_location

struct device_physical_location (5 fields) source

§ enum device_physical_location_panel panel

§ enum device_physical_location_vertical_position vertical_position

§ enum device_physical_location_horizontal_position horizontal_position

§ bool dock

§ bool lid

device_driver

struct device_driver (6 fields) source

§ const char *name

§ enum device_bus_type bus

§ enum err (*probe)(struct device *dev)

§ void (*remove)(struct device *dev)

§ enum err (*suspend)(struct device *dev, enum device_power_state target)

§ enum err (*resume)(struct device *dev)

device_resource

struct device_resource (4 fields) source

§ enum device_resource_type type

§ uint64_t start

§ uint64_t size

length in bytes / count for IRQ,DMA

§ uint32_t flags

device_ops

struct device_ops (1 field) source

§ void (*print)(struct device *)

device

struct device (23 fields) source

§ const char *name

§ uint32_t id

unique device-model ID

§ enum device_type type

§ enum device_bus_type bus

§ struct device *parent

§ struct list_head children

Children list

§ struct rbt_node tree_node

global device tree indexing

§ struct list_node list_node

List node to attach to parent ‘children’

§ struct device_ops *ops

§ struct device_driver *driver

§ void *driver_data

opaque, owned by the driver

§ enum device_state state

§ enum device_power_state power

§ enum device_flags flags

§ refcount_t refcount

§ struct device_resource resources[DEVICE_MAX_RESOURCES]

§ uint8_t resource_count

§ numa_node_t numa_node

§ struct device_physical_location location

§ struct iommu_domain *iommu_domain

§ struct mutex mutex

§ struct spinlock lock

§ void *private

Enums

device_physical_location_panel

enum device_physical_location_panel (7 variants) source

§ DEVICE_PANEL_TOP

§ DEVICE_PANEL_BOTTOM

§ DEVICE_PANEL_LEFT

§ DEVICE_PANEL_RIGHT

§ DEVICE_PANEL_FRONT

§ DEVICE_PANEL_BACK

§ DEVICE_PANEL_UNKNOWN

device_physical_location_vertical_position

enum device_physical_location_vertical_position (3 variants) source

§ DEVICE_VERT_POS_UPPER

§ DEVICE_VERT_POS_CENTER

§ DEVICE_VERT_POS_LOWER

device_physical_location_horizontal_position

enum device_physical_location_horizontal_position (3 variants) source

§ DEVICE_HORI_POS_LEFT

§ DEVICE_HORI_POS_CENTER

§ DEVICE_HORI_POS_RIGHT

device_bus_type

enum device_bus_type (7 variants) source

§ DEVICE_BUS_TYPE_PLATFORM

pseudo-bus for SoC / board-level devices

§ DEVICE_BUS_TYPE_PCI

§ DEVICE_BUS_TYPE_USB

§ DEVICE_BUS_TYPE_I2C

§ DEVICE_BUS_TYPE_SPI

§ DEVICE_BUS_TYPE_VIRTIO

§ DEVICE_BUS_TYPE_ACPI

device_type

enum device_type (11 variants) source

§ DEVICE_TYPE_UNKNOWN

§ DEVICE_TYPE_BLOCK

§ DEVICE_TYPE_CHAR

§ DEVICE_TYPE_NET

§ DEVICE_TYPE_INPUT

§ DEVICE_TYPE_DISPLAY

§ DEVICE_TYPE_AUDIO

§ DEVICE_TYPE_SERIAL

§ DEVICE_TYPE_GPU

§ DEVICE_TYPE_TIMER

§ DEVICE_TYPE_BUS

bridge / host controller

device_power_state

enum device_power_state (6 variants) source

§ DEVICE_POWER_D0

fully operational

§ DEVICE_POWER_D1

light sleep (clock-gated)

§ DEVICE_POWER_D2

deeper sleep (power-gated, context kept)

§ DEVICE_POWER_D3_HOT

off, aux power, software-recoverable

§ DEVICE_POWER_D3_COLD

off, no power, full re-init required

§ DEVICE_POWER_REMOVED

hot-unplugged

device_state

enum device_state (7 variants) source

§ DEVICE_STATE_UNBOUND

in the tree but no driver attached

§ DEVICE_STATE_PROBING

driver probe() in progress

§ DEVICE_STATE_BOUND

driver matched and probe() succeeded

§ DEVICE_STATE_SUSPENDED

low-power, context saved

§ DEVICE_STATE_REMOVING

being torn down

§ DEVICE_STATE_REMOVED

gone, awaiting final release

§ DEVICE_STATE_ERROR

unrecoverable fault

device_flags

enum device_flags (8 variants) source

§ DEVICE_FLAG_HOTPLUG = (1u << 0)

supports hot-plug/remove

§ DEVICE_FLAG_DMA = (1u << 1)

DMA-capable

§ DEVICE_FLAG_MMIO = (1u << 2)

memory-mapped I/O

§ DEVICE_FLAG_PIO = (1u << 3)

port I/O

§ DEVICE_FLAG_MSI = (1u << 4)

MSI / MSI-X capable

§ DEVICE_FLAG_VIRTUAL = (1u << 5)

software-only / emulated

§ DEVICE_FLAG_REMOVABLE = (1u << 6)

user-removable

§ DEVICE_FLAG_WAKEUP = (1u << 7)

can wake system from sleep

device_resource_type

enum device_resource_type (4 variants) source

§ DEVICE_RESOURCE_MEM

§ DEVICE_RESOURCE_IO

§ DEVICE_RESOURCE_IRQ

§ DEVICE_RESOURCE_DMA

Functions

device_init

void device_init(struct device *dev)

source

Macros

DEVICE_MAX_RESOURCES

#define DEVICE_MAX_RESOURCES 8

source