Struct sunrise_kernel::devices::hpet::HpetTimer

pub struct HpetTimer {
    inner: *mut HpetTimerRegister,
    support_64bit: bool,
    support_periodic_interrupt: bool,
    support_fsb_interrupt: bool,
    interrupt_route_capability: u32,
}

Represent an HPET timer.

Fields

inner: *mut HpetTimerRegister

The mmio address of this HPET timer.

support_64bit: bool

Cached value of HpetTimerConfigurationRegister::size_capability.

support_periodic_interrupt: bool

Cached value of HpetTimerConfigurationRegister::periodic_interrupt_capability.

support_fsb_interrupt: bool

Cached value of HpetTimerConfigurationRegister::fsb_interrupt_capability.

interrupt_route_capability: u32

Cached value of HpetTimerRegister::interrupt_route_capability.

Implementations

impl HpetTimer

const MAX_IRQ: u32

This is the maximum IRQ lines supported by the HPET.

fn new(inner: *mut HpetTimerRegister) -> Self

Create a new HPET timer instance from MMIO registers.

pub fn support_64bit(&self) -> bool

Return true if this timer is a 64 bits timer.

pub fn support_periodic_interrupt(&self) -> bool

Return true if this timer supports periodic interrupt.

pub fn support_fsb_interrupt(&self) -> bool

Return true if this timer supports fsb interrupt.

pub fn support_interrupt_routing(&self, index: u32) -> bool

Return true if the timer support routing to the given IRQ.

pub fn set_interrupt_route(&self, index: u32)

Set the routing for the interrupt to the I/O APIC.

Panics

Panics if the given interrupt route is not supported by this hpet timer.

pub fn set_comparator_value(&self, value: u64)

Set the timer comparactor value

pub fn set_accumulator_value(&self, value: u64)

Set the timer accumulator value.

Note

The timer MUST be in periodic mode.

pub fn set_edge_trigger(&self)

Set Edge Trigger.

pub fn set_level_trigger(&self)

Set Level Trigger.

pub fn set_one_shot_mode(&self)

Set the timer in One Shot mode.

pub fn set_periodic_mode(&self)

Set the timer in Periodic mode.

Note

The timer must support periodic mode.

pub fn enable_interrupt(&self)

Enable interrupt.

pub fn disable_interrupt(&self)

Disable interrupt.

pub fn has_interrupt_enabled(&self) -> bool

Determine if the interrupt is enabled.

Trait Implementations

impl Debug for HpetTimer

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

Formats the value using the given formatter.