zephyr/drivers/audio
Peter Bigot 5f481bb042 drivers: rearrange for standard use of extern "C" in private headers
Consistently place C++ use of extern "C" after all include directives,
within the negative branch of _ASMLANGUAGE if used.

Only updated in headers that already had support for drivers built with
a C++ compiler.

The spi_dw.h file defines macros to declare functions, then uses them
within a file that may have out-of-tree overrides.  In this case we
leave the including file extern "C" active for backward compatibility.

Background from issue #17997:

Declarations that use C linkage should be placed within extern "C"
so the language linkage is correct when the header is included by
a C++ compiler.

Similarly #include directives should be outside the extern "C" to
ensure the language-specific default linkage is applied to any
declarations provided by the included header.

See: https://en.cppreference.com/w/cpp/language/language_linkage
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2019-08-13 18:00:31 +02:00
..
decimation
CMakeLists.txt license: cleanup: add SPDX Apache-2.0 license identifier 2019-04-07 08:45:22 -04:00
Kconfig
Kconfig.intel_dmic
Kconfig.mpxxdtyy
Kconfig.tlv320dac
intel_dmic.c cleanup: include/: move dma.h to drivers/dma.h 2019-06-27 22:55:49 -04:00
intel_dmic.h
mpxxdtyy-i2s.c cleanup: include/: move i2s.h to drivers/i2s.h 2019-06-27 22:55:49 -04:00
mpxxdtyy.c dts: Convert from DT_<COMPAT>_<INSTANCE>_<PROP> to DT_INST... 2019-06-14 08:02:15 -05:00
mpxxdtyy.h drivers: rearrange for standard use of extern "C" in private headers 2019-08-13 18:00:31 +02:00
tlv320dac310x.c cleanup: include/: move misc/util.h to sys/util.h 2019-06-27 22:55:49 -04:00
tlv320dac310x.h