clang-format: copy latest and re-format

clang-format-16 has some backwards incompatible changes that require
additional settings for best compatibility and re-running the formatter.
Copy the latest

clang-format: copy latest and re-format

clang-format-16 has some backwards incompatible changes that require
additional settings for best compatibility and re-running the formatter.
Copy the latest .clang-format from the docs repository and reformat the
repository.

Change-Id: I152f141a5e8343b92b5ce81d3ca16eec77b5606b
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>

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presence: Sensor conflict checking for AnyOf

There can be more than one way to detect the presence of a fan, such as
by a GPIO and by a nonzero tach reading. The AnyOf redundancy policy
only requir

presence: Sensor conflict checking for AnyOf

There can be more than one way to detect the presence of a fan, such as
by a GPIO and by a nonzero tach reading. The AnyOf redundancy policy
only requires one of these to indicate present when determining the
overall fan presence state.

This commit adds the functionality to check for the case when one of the
method reports not present while another reports present. In this case,
the one reporting not present will be considered the wrong one, and
depending on the detection type either an information event log or just
a journal trace will be created.

Only one log per method per power cycle will occur. Since one of the
methods probably looks for nonzero tach readings, there is a 5 second
delay after a power on is detected before a conflict check is done.

If the GPIO method is where the problem is detected, an event log is
created. If it's instead the tach sensor method, then a trace will just
be put in the journal because there is already code watching for and
creating event logs for stopped tachs - the fan monitor code.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I72a764ecff4076d6dc40335b92d177b6b3cfa2d9

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presence: Clang format updates

Used `format-code.sh` build script to make changes to conform to clang
format.

Tested: Compiled

Change-Id: I2fc795938e85a752ee56b54212d389c2ff296828
Signed-off-by: M

presence: Clang format updates

Used `format-code.sh` build script to make changes to conform to clang
format.

Tested: Compiled

Change-Id: I2fc795938e85a752ee56b54212d389c2ff296828
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>

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presence: Add sensor comparison

Add a basic comparison operator for presence sensors.

Change-Id: Ib147fd24f6e9ea1daf5f2b0b71943e0b4c96a8b7
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>

presence: Add presence sensor interface

Prepare to extend the fan presence model to include
sensors of other types with a presence sensor interface
class.

Presence sensors can be both event driven

presence: Add presence sensor interface

Prepare to extend the fan presence model to include
sensors of other types with a presence sensor interface
class.

Presence sensors can be both event driven or polled. Provide
start and stop for the former and present for the latter.

Change-Id: Ia1b91a5e30e27fbe66c6f075e5e5ce620dac997e
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>

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