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Allow interrupt-driven MACRAW operation #60

Merged
merged 3 commits into from
Apr 15, 2024
Merged

Allow interrupt-driven MACRAW operation #60

merged 3 commits into from
Apr 15, 2024

Commits on Apr 15, 2024

  1. Allow interrupt-driven MACRAW operation 

    This commit adds methods to RawDevice that enable interrupt-driven
operation. The enable_interrupt() method sets up SIMR so that
socket-level (internal) interrupts on Socket 0 cause chip-level
(external) interrupts (and as a convenience also sets S0_IR as
required). The disable_interrupt() method reverses those changes.
The clear_interrupt() method acknowledges all interrupts and is
intended to be called from the interrupt handler (or from thread mode
soon afterwards).

There is no change to existing functionality or operation if
enable_interrupt() is never called.

I did see PR#34 before filing this, but that change is focused on
TCP and UDP sockets, and my use case is MACRAW mode.

Tested on a W5500-Pico-EVB board with the RP2040 successfully receiving
and acting on active-low GPIO interrupts from W5500 via the INTn signal
on W5500 pin 36.
    @pdh11
    pdh11 committed Apr 15, 2024
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  2. Add CHANGELOG entry and fix review comments

    @pdh11
    pdh11 committed Apr 15, 2024
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  3. Fix new cargo fmt issues

    @pdh11
    pdh11 committed Apr 15, 2024
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