Add in support for power supply over-temperature
If a power supply encounters an over-temperature condition, the FAN
FAULT OR WARNING bit of the STATUS_WORD (low byte) command response
should be turned on. Ideally, when this is encountered, both power
supplies would be called out, as one condition that could lead to this
is due to the other supply putting out less current. Since each
monitoring application of the power supplies only knows its own
information, just the power supply indicating the condition will be
called out along with metadata containing potentially relevant command
response data.
Change-Id: I8f96828f85161050f73bb080392e1e8fef4a179b
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
diff --git a/pmbus.hpp b/pmbus.hpp
index a2572f7..fc9a1cb 100644
--- a/pmbus.hpp
+++ b/pmbus.hpp
@@ -69,6 +69,16 @@
// out if that fault is on.
constexpr auto VIN_UV_FAULT = 0x0008;
+// The bit mask representing the TEMPERATURE FAULT or WARNING bit of the
+// STATUS_WORD. Bit 2 of the low byte (STATUS_BYTE).
+constexpr auto TEMPERATURE_FAULT_WARN = 0x0004;
+
+}
+
+namespace status_temperature
+{
+// Overtemperature Fault
+constexpr auto OT_FAULT = 0x80;
}
/**