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Kernel/USB: Add support for async & interrupt transfers
Add support for async transfers by using a separate kernel task to poll a list of active async transfers on a set time interval, and invoke their user-provided callback function when they are complete. Also add support for the interrupt class of transfers, building off of this async functionality.
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8 changed files with 181 additions and 62 deletions
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@ -23,8 +23,10 @@ public:
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virtual ErrorOr<void> stop() = 0;
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virtual ErrorOr<void> start() = 0;
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virtual void cancel_async_transfer(NonnullLockRefPtr<Transfer> transfer) = 0;
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virtual ErrorOr<size_t> submit_control_transfer(Transfer&) = 0;
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virtual ErrorOr<size_t> submit_bulk_transfer(Transfer& transfer) = 0;
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virtual ErrorOr<void> submit_async_interrupt_transfer(NonnullLockRefPtr<Transfer> transfer, u16 ms_interval) = 0;
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u8 allocate_address();
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