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ClockRequest

Enum ClockRequest 

Source
pub enum ClockRequest {
    Enable {
        responder: ClockEnableResponder,
    },
    Disable {
        responder: ClockDisableResponder,
    },
    IsEnabled {
        responder: ClockIsEnabledResponder,
    },
    SetRate {
        hz: u64,
        responder: ClockSetRateResponder,
    },
    QuerySupportedRate {
        hz_in: u64,
        responder: ClockQuerySupportedRateResponder,
    },
    GetRate {
        responder: ClockGetRateResponder,
    },
    SetInput {
        idx: u32,
        responder: ClockSetInputResponder,
    },
    GetNumInputs {
        responder: ClockGetNumInputsResponder,
    },
    GetInput {
        responder: ClockGetInputResponder,
    },
    GetProperties {
        responder: ClockGetPropertiesResponder,
    },
#[non_exhaustive]
_UnknownMethod { ordinal: u64, control_handle: ClockControlHandle, method_type: MethodType, }, }
Expand description

Used for driver-to-driver communication.

Variants§

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Enable

Enables (ungates) this clock. Drivers must call enable on all clocks they depend upon. Returns ZX_ERR_NOT_SUPPORTED if this clock type does not support Enable. Returns ZX_ERR_TIMED_OUT if an operation timed out (for instance, a PLL was unable to lock). Returns ZX_ERR_INTERNAL if the operation failed for any other reason.

Fields

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Disable

Disables (gates) this clock. Drivers should call this method to indicate to the clock subsystem that a particular clock signal is no longer necessary. Returns ZX_ERR_NOT_SUPPORTED if this clock type does not support Disable Returns ZX_ERR_INTERNAL if the operation failed for any other reason.

Fields

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IsEnabled

Returns true if a given clock is running. May query the hardware or return a cached value. IsEnabled shall not alter the state of the clock tree in any way. Returns ZX_ERR_NOT_SUPPORTED if this clock type does not support IsEnabled.

Fields

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SetRate

Attempt to set the rate of the clock provider. Returns ZX_ERR_NOT_SUPPORTED if this clock type does not support SetRate Returns ZX_ERR_INVALID_ARGS if the requested rate is not one that is reported as supported by QuerySupportedRate. Returns ZX_ERR_TIMED_OUT if an operation timed out (for instance, a PLL was unable to lock). Returns ZX_ERR_INTERNAL if the operation failed for any other reason.

Fields

§hz: u64
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QuerySupportedRate

Query the hardware for the highest supported rate that does not exceed hz_in. QuerySupportedRate shall not alter the state of the clock tree in any way. Returns ZX_ERR_NOT_SUPPORTED if this clock type does not support QuerySupportedRate. Returns ZX_ERR_OUT_OF_RANGE if a suitable rate could not be found.

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GetRate

Returns the current rate that a given clock is running at. GetRate shall not alter the state of the clock tree in any way. Returns ZX_ERR_NOT_SUPPORTED if this clock type does not support GetRate .

Fields

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SetInput

Sets the input of this clock by index. I.e. by selecting a mux. This clock has N inputs defined 0 through N-1, which are valid arguemts as the index to SetInput. Returns ZX_ERR_NOT_SUPPORTED if this clock type does not support SetInput Returns ZX_ERR_OUT_OF_RANGE if idx is outside of the range supplied by GetNumInputs. Returns ZX_ERR_INTERNAL if the operation failed for any other reason.

Fields

§idx: u32
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GetNumInputs

Returns the number of inputs this clock has. Any value between 0 and UINT32_MAX is a valid return for this method. A Root Oscillator may return 0 for instance, if it has no inputs. GetNumInputs shall not alter the state of the clock tree in any way. Returns ZX_ERR_NOT_SUPPORTED if this clock type does not support GetNumInputs.

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GetInput

Returns the index of the current input of this clock. GetInput shall not alter the state of the clock tree in any way. Returns ZX_ERR_NOT_SUPPORTED if this clock type does not support GetInput.

Fields

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GetProperties

Returns the static properties of a clock.

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#[non_exhaustive]
_UnknownMethod

An interaction was received which does not match any known method.

Fields

This variant is marked as non-exhaustive
Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.
§ordinal: u64

Ordinal of the method that was called.

§control_handle: ClockControlHandle
§method_type: MethodType

Implementations§

Trait Implementations§

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impl Debug for ClockRequest

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

Formats the value using the given formatter. Read more

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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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const ALIGN: usize

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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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Dereferences the given pointer. Read more
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