tree fc22c6063dea6253a0092cd3dc6208e40cfb4f1d
parent 2227bd52c5bb8d62dcfe33b58d65515d21e9be17
author Carol Wang <wangkair@cn.ibm.com> 1564651890 +0800
committer Carol Wang <wangkair@cn.ibm.com> 1566884564 +0800

Support averaging power values

Support new env variables 'AVERAGE_power* = "true"' in hwmon config file.
When this env variable is set, power value is the calculated average value.
Otherwise, power value is from power*_input by default.
The new average of power is calculated since the last time the sensor's
values were changed and read.

average =
(cur_average*cur_average_interval - pre_average*pre_average_interval) /
(cur_average_interval - pre_average_interval)

hwmon config example:
AVERAGE_power2 = "true"
AVERAGE_power3 = "true"
AVERAGE_power4 = "true"

Tested: Set AVERAGE_power* in p0 OCC hwmon conf but not in p1 OCC hwmon conf,
then get power sensor info with restapi to check the values.
1. The values of p0*power are all average values.
2. The values of p1*power are all input values.

Note:
Delete $(CODE_COVERAGE_CPPFLAGS) in AM_CPPFLAGS in test/Makefile.am.
This option will define NDEBUG during configuration, then assert in
code doesn't work.

Resolves: openbmc/openbmc#3187
Signed-off-by: Carol Wang <wangkair@cn.ibm.com>
Change-Id: I8d97a7b2905c79cd4f2c276b32e7f5590ffc0483