diff options
Diffstat (limited to 'rust/kernel/net/phy/reg.rs')
| -rw-r--r-- | rust/kernel/net/phy/reg.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/rust/kernel/net/phy/reg.rs b/rust/kernel/net/phy/reg.rs index 4563737a9675..a7db0064cb7d 100644 --- a/rust/kernel/net/phy/reg.rs +++ b/rust/kernel/net/phy/reg.rs @@ -31,6 +31,13 @@ mod private { /// dev.read(C22::BMCR); /// // read C45 PMA/PMD control 1 register /// dev.read(C45::new(Mmd::PMAPMD, 0)); +/// +/// // Checks the link status as reported by registers in the C22 namespace +/// // and updates current link state. +/// dev.genphy_read_status::<phy::C22>(); +/// // Checks the link status as reported by registers in the C45 namespace +/// // and updates current link state. +/// dev.genphy_read_status::<phy::C45>(); /// } /// ``` pub trait Register: private::Sealed { @@ -39,6 +46,9 @@ pub trait Register: private::Sealed { /// Writes a PHY register. fn write(&self, dev: &mut Device, val: u16) -> Result; + + /// Checks the link status and updates current link state. + fn read_status(dev: &mut Device) -> Result<u16>; } /// A single MDIO clause 22 register address (5 bits). @@ -113,6 +123,15 @@ impl Register for C22 { bindings::mdiobus_write((*phydev).mdio.bus, (*phydev).mdio.addr, self.0.into(), val) }) } + + fn read_status(dev: &mut Device) -> Result<u16> { + let phydev = dev.0.get(); + // SAFETY: `phydev` is pointing to a valid object by the type invariant of `Self`. + // So it's just an FFI call. + let ret = unsafe { bindings::genphy_read_status(phydev) }; + to_result(ret)?; + Ok(ret as u16) + } } /// A single MDIO clause 45 register device and address. @@ -193,4 +212,13 @@ impl Register for C45 { bindings::phy_write_mmd(phydev, self.devad.0.into(), self.regnum.into(), val) }) } + + fn read_status(dev: &mut Device) -> Result<u16> { + let phydev = dev.0.get(); + // SAFETY: `phydev` is pointing to a valid object by the type invariant of `Self`. + // So it's just an FFI call. + let ret = unsafe { bindings::genphy_c45_read_status(phydev) }; + to_result(ret)?; + Ok(ret as u16) + } } |