Darian Leung de6bf09f40 usb: Fix how the HCD handles sudden disconnection
This commit fixes how the USB Host HCD handles sudden disconnections.

Bugs:
- HW channels remain active when the port suddenly disconnects, and
previously the channel would be disabled by setting the disabled bit,
then waiting for a disabled interrupt. However, ISOC channels do not
generate the disabled interrupt when the port is invalid, thus leading
to tasks getting indefinitely blocked in hcd_pipe_command().

Fix:
On a sudden disconnection, forcibly treat all channels as halted even
if their HCCHAR.ChEna bit is still set. We do a soft reset after a port
error anyways, so the channels will eventually be reset.

Closes https://github.com/espressif/esp-idf/issues/7505
2021-11-11 16:25:01 +08:00
..
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