kernel::interrupt::controllers

Trait ExternalInterruptController

Source 
pub trait ExternalInterruptController: Send + Sync {
    // Required methods
    fn init(&mut self) -> InterruptResult<()>;
    fn enable_interrupt(
        &mut self,
        interrupt_id: InterruptId,
        cpu_id: CpuId,
    ) -> InterruptResult<()>;
    fn disable_interrupt(
        &mut self,
        interrupt_id: InterruptId,
        cpu_id: CpuId,
    ) -> InterruptResult<()>;
    fn set_priority(
        &mut self,
        interrupt_id: InterruptId,
        priority: Priority,
    ) -> InterruptResult<()>;
    fn get_priority(
        &self,
        interrupt_id: InterruptId,
    ) -> InterruptResult<Priority>;
    fn set_threshold(
        &mut self,
        cpu_id: CpuId,
        threshold: Priority,
    ) -> InterruptResult<()>;
    fn get_threshold(&self, cpu_id: CpuId) -> InterruptResult<Priority>;
    fn claim_interrupt(
        &mut self,
        cpu_id: CpuId,
    ) -> InterruptResult<Option<InterruptId>>;
    fn complete_interrupt(
        &mut self,
        cpu_id: CpuId,
        interrupt_id: InterruptId,
    ) -> InterruptResult<()>;
    fn is_pending(&self, interrupt_id: InterruptId) -> bool;
    fn max_interrupts(&self) -> InterruptId;
    fn max_cpus(&self) -> CpuId;
}
Expand description

Trait for external interrupt controllers (like PLIC)

External interrupt controllers manage interrupts from external devices and can route them to different CPUs with priority support.

Required Methods§

Source

fn init(&mut self) -> InterruptResult<()>

Initialize the external interrupt controller

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fn enable_interrupt( &mut self, interrupt_id: InterruptId, cpu_id: CpuId, ) -> InterruptResult<()>

Enable a specific interrupt for a CPU

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fn disable_interrupt( &mut self, interrupt_id: InterruptId, cpu_id: CpuId, ) -> InterruptResult<()>

Disable a specific interrupt for a CPU

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fn set_priority( &mut self, interrupt_id: InterruptId, priority: Priority, ) -> InterruptResult<()>

Set priority for a specific interrupt

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fn get_priority(&self, interrupt_id: InterruptId) -> InterruptResult<Priority>

Get priority for a specific interrupt

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fn set_threshold( &mut self, cpu_id: CpuId, threshold: Priority, ) -> InterruptResult<()>

Set priority threshold for a CPU

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fn get_threshold(&self, cpu_id: CpuId) -> InterruptResult<Priority>

Get priority threshold for a CPU

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fn claim_interrupt( &mut self, cpu_id: CpuId, ) -> InterruptResult<Option<InterruptId>>

Claim an interrupt (acknowledge and get the interrupt ID)

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fn complete_interrupt( &mut self, cpu_id: CpuId, interrupt_id: InterruptId, ) -> InterruptResult<()>

Complete an interrupt (signal that handling is finished)

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fn is_pending(&self, interrupt_id: InterruptId) -> bool

Check if a specific interrupt is pending

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fn max_interrupts(&self) -> InterruptId

Get the maximum number of interrupts supported

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fn max_cpus(&self) -> CpuId

Get the number of CPUs supported

Implementors§