w5100-rs/src/host/mod.rs

64 lines
2 KiB
Rust

mod dhcp;
mod manual;
pub use self::dhcp::Dhcp;
pub use self::manual::Manual;
use crate::bus::ActiveBus;
use crate::register;
use crate::MacAddress;
use embedded_nal::Ipv4Addr;
pub struct HostConfig {
mac: MacAddress,
ip: Ipv4Addr,
gateway: Ipv4Addr,
subnet: Ipv4Addr,
}
impl Default for HostConfig {
fn default() -> Self {
Self {
mac: MacAddress::default(),
ip: Ipv4Addr::unspecified(),
gateway: Ipv4Addr::unspecified(),
subnet: Ipv4Addr::unspecified(),
}
}
}
pub trait Host {
/// Gets (if necessary) and sets the host settings on the chip
fn refresh<SpiBus: ActiveBus>(&mut self, bus: &mut SpiBus) -> Result<(), SpiBus::Error>;
/// Write changed settings to chip
///
/// Will check all settings and write any new ones to the chip. Will update the settings returned by `current`
/// with any changes.
fn write_settings<SpiBus: ActiveBus>(
bus: &mut SpiBus,
current: &mut HostConfig,
settings: &HostConfig,
) -> Result<(), SpiBus::Error> {
if settings.gateway != current.gateway {
let address = settings.gateway.octets();
bus.write_frame(register::COMMON, register::common::GATEWAY, &address)?;
current.gateway = settings.gateway;
}
if settings.subnet != current.subnet {
let address = settings.subnet.octets();
bus.write_frame(register::COMMON, register::common::SUBNET_MASK, &address)?;
current.subnet = settings.subnet;
}
if settings.mac != current.mac {
let address = settings.mac.octets;
bus.write_frame(register::COMMON, register::common::MAC, &address)?;
current.mac = settings.mac;
}
if settings.ip != current.ip {
let address = settings.ip.octets();
bus.write_frame(register::COMMON, register::common::IP, &address)?;
current.ip = settings.ip;
}
Ok(())
}
}