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SN32: USB wakeup and interrupt handling cleanup #376

Merged
merged 3 commits into from
Jul 21, 2023
Merged

SN32: USB wakeup and interrupt handling cleanup #376

merged 3 commits into from
Jul 21, 2023

Commits on Jul 20, 2023

  1. sn32: fix host remote wakeup 

    Previously a device which attempted to wake a sleeping host would not be
notified about the resumed operation and thus stay suspended for ever.

This is due to the fact that only a host initiated wakeup would trigger
a interrupt. As a workaround we use the SOF interrupt which is enabled
for a short amount of time to detect the resume of the bus and wakeup
the device.
    @dexter93
    dexter93 committed Jul 20, 2023
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  2. sn32: usb: only activate interrupts on lld start

    @dexter93
    dexter93 committed Jul 20, 2023
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  3. sn32: usb: do NOT clear interrupt status until handled 

    Leftover Sonix reference code cleanup. Sometimes when there is traffic
on more than 1 ep's packets would be dropped before they could be handled.
Clearing the status flags after handling them takes care of it.
    @dexter93
    dexter93 committed Jul 20, 2023
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