Enum BusRequest

pub enum BusRequest {
    GetHostBridgeInfo {
        responder: BusGetHostBridgeInfoResponder,
    },
    GetDevices {
        responder: BusGetDevicesResponder,
    },
    ReadBar {
        device: Address,
        bar_id: u8,
        offset: u64,
        size: u64,
        responder: BusReadBarResponder,
    },
}

The Bus protocol provides information about PCI device children on the PCI providing the service.

Variants

GetHostBridgeInfo

Retrieve information about the segment group and buses covered by a Bus.

Fields

responder: BusGetHostBridgeInfoResponder

GetDevices

Retrieve all Devices on the Bus.

Fields

responder: BusGetDevicesResponder

ReadBar

Read from a Device’s base address register (BAR). The BAR must be an MMIO type.

Parameters |device|: The address of the device to read from. |bar_id|: The ID of the BAR to read. |offset|: The offset, in bytes, to start the read (default: 0 bytes). |size|: The size of the read (default: 128 bytes). The max size for a read is |READBAR_MAX_SIZE|.

Errors: |ZX_ERR_NOT_FOUND|: |device| was not found, or |bar_id| did not exist in |device|. |ZX_ERR_INVALID_ARGS|: |bar_id| is invalid, or offset / size combined are invalid for the given BAR’s size. |ZX_ERR_NOT_SUPPORTED|: The BAR specified by |bar_id| is not an MMIO BAR.

Fields

device: Address

bar_id: u8

offset: u64

size: u64

responder: BusReadBarResponder

Implementations

impl BusRequest

pub fn into_get_host_bridge_info(self) -> Option<BusGetHostBridgeInfoResponder>

pub fn into_get_devices(self) -> Option<BusGetDevicesResponder>

pub fn into_read_bar( self, ) -> Option<(Address, u8, u64, u64, BusReadBarResponder)>

pub fn method_name(&self) -> &'static str

Name of the method defined in FIDL

Trait Implementations

impl Debug for BusRequest

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.