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dell: implement Unmanaged GPS support for the DW5821e

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The DW5821E module is managed in MBIM mode by default, and exposes a
NMEA capable tty in USB interface #4.

Enabling/disabling the NMEA output via the TTY is done with AT
commands, so this implementation requires also a valid AT port in the
system.

Given that the AT commands used to enable/disable this feature are
based on modifying non-volatile memory through AT^NV, this
implementation is very specific to the DW5821E. If we're able to do
the same on other Dell modules in the future, we'll just rename the
new object to a more generic one.
This commit is contained in:
Aleksander Morgado
2018-09-12 18:48:41 +00:00
committed by Dan Williams
parent 02f9b5b085
commit 6e5ea39cba
4 changed files with 388 additions and 4 deletions
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plugins/Makefile.am
+8
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@@ -1014,6 +1014,14 @@ libmm_plugin_dell_la_SOURCES = \
dell/mm-plugin-dell.c \
dell/mm-plugin-dell.h \
$(NULL)
if WITH_MBIM
libmm_plugin_dell_la_SOURCES += \
dell/mm-broadband-modem-dell-dw5821e.h \
dell/mm-broadband-modem-dell-dw5821e.c \
$(NULL)
endif
libmm_plugin_dell_la_CPPFLAGS = $(PLUGIN_COMMON_COMPILER_FLAGS) $(NOVATEL_COMMON_COMPILER_FLAGS) $(SIERRA_COMMON_COMPILER_FLAGS) $(TELIT_COMMON_COMPILER_FLAGS) $(MBM_COMMON_COMPILER_FLAGS)
libmm_plugin_dell_la_LDFLAGS = $(PLUGIN_COMMON_LINKER_FLAGS)
libmm_plugin_dell_la_LIBADD = $(NOVATEL_COMMON_LIBADD_FLAGS) $(SIERRA_COMMON_LIBADD_FLAGS) $(TELIT_COMMON_LIBADD_FLAGS) $(MBM_COMMON_LIBADD_FLAGS)