Struct MmioCam 

pub struct MmioCam<'a> { /* private fields */ }

ConfigurationAccess implementation for memory-mapped access to a PCI root complex, via either a 16 MiB region for the PCI Configuration Access Mechanism or a 256 MiB region for the PCIe Enhanced Configuration Access Mechanism.

Implementations

impl MmioCam<'_>

pub unsafe fn new(mmio_base: *mut u8, cam: Cam) -> Self

Wraps the PCI root complex with the given MMIO base address.

Panics if the base address is not aligned to a 4-byte boundary.

Safety

mmio_base must be a valid pointer to an appropriately-mapped MMIO region of at least 16 MiB (if cam == Cam::MmioCam) or 256 MiB (if cam == Cam::Ecam). The pointer must be valid for the lifetime 'a, which implies that no Rust references may be used to access any of the memory region at least during that lifetime.

Trait Implementations

impl ConfigurationAccess for MmioCam<'_>

fn read_word(&self, device_function: DeviceFunction, register_offset: u8) -> u32

Reads 4 bytes from the configuration space.

fn write_word( &mut self, device_function: DeviceFunction, register_offset: u8, data: u32, )

Writes 4 bytes to the configuration space.

unsafe fn unsafe_clone(&self) -> Self

Makes a clone of the ConfigurationAccess, accessing the same PCI bus.

impl Sync for MmioCam<'_>