net: wwan: hwsim: support NMEA port emulation

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Support NMEA port emulation for the WWAN core GNSS port testing purpose.
Emulator produces pair of GGA + RMC sentences every second what should
be enough to fool gpsd into believing it is working with a NMEA GNSS
receiver.

If the GNSS system is enabled then one NMEA port will be created
automatically for the simulated WWAN device. Manual NMEA port creation
is not supported at the moment.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Link: https://patch.msgid.link/20260126062158.308598-8-slark_xiao@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Sergey Ryazanov 2026-01-26 14:21:57 +08:00 • committed by Jakub Kicinski

parent f5b8065e1f

commit 193985d1e4

1 changed files with 126 additions and 2 deletions

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drivers/net/wwan/wwan_hwsim.c

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