Struct PcieHost 

pub struct PcieHost {
    ecam_paddr: usize,
    ecam_vaddr: usize,
    ecam_size: usize,
    mmio_base: usize,
    mmio_size: usize,
    bus_start: u8,
    bus_end: u8,
}

PCIe Host 控制器结构体

Fields

ecam_paddr: usize

ECAM 物理地址

ecam_vaddr: usize

ECAM 虚拟地址

ecam_size: usize

ECAM 大小

mmio_base: usize

MMIO 基地址

mmio_size: usize

MMIO 大小

bus_start: u8

总线起始号

bus_end: u8

总线结束号

Implementations

impl PcieHost

pub fn from_fdt() -> Option<Self>

从设备树解析

pub fn from_platform_defaults() -> Option<Self>

从平台默认配置解析

fn cfg_addr(&self, bus: u8, dev: u8, func: u8, offset: u16) -> *mut u32

计算配置空间地址

pub unsafe fn cfg_read32(&self, bus: u8, dev: u8, func: u8, offset: u16) -> u32

读取 PCIe 配置空间

pub unsafe fn cfg_write32( &self, bus: u8, dev: u8, func: u8, offset: u16, val: u32, )

写入 PCIe 配置空间

pub fn enumerate(&self)

枚举 PCIe 设备并打印信息

Trait Implementations

impl Clone for PcieHost

fn clone(&self) -> PcieHost

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for PcieHost