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sensors: Add support for power min, lcrit, min_alarm, lcrit_alarm

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SFP modules measure the transmit power of the lazer. The sensor has
expected minimum values, and alarms when these minimams are reached.
Add support to sensors to print these.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
This commit is contained in:
Andrew Lunn
2018-06-29 09:03:57 -05:00
committed by Guenter Roeck
parent 70f7e08484
commit dcf23676cc
4 changed files with 20 additions and 1 deletions
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7
doc/libsensors-API.txt
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@@ -6,6 +6,13 @@ over time. This document summarizes these evolutions so that application
authors can quickly figure out how to test for the availability of a
given new feature.
0x4?? lm-sensors 3.?.?
* Added support for power min, lcrit, min_alarm and lcrit_alarm
enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_MIN
enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_LCRIT
enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_MIN_ALARM
enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_LCRIT_ALARM
0x440 lm-sensors 3.4.0
* Defined SENSORS_FEATURE_MAX
enum sensors_feature_type SENSORS_FEATURE_MAX

4
lib/sensors.h
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@@ -214,11 +214,15 @@ typedef enum sensors_subfeature_type {
SENSORS_SUBFEATURE_POWER_CAP_HYST,
SENSORS_SUBFEATURE_POWER_MAX,
SENSORS_SUBFEATURE_POWER_CRIT,
SENSORS_SUBFEATURE_POWER_MIN,
SENSORS_SUBFEATURE_POWER_LCRIT,
SENSORS_SUBFEATURE_POWER_AVERAGE_INTERVAL = (SENSORS_FEATURE_POWER << 8) | 0x80,
SENSORS_SUBFEATURE_POWER_ALARM,
SENSORS_SUBFEATURE_POWER_CAP_ALARM,
SENSORS_SUBFEATURE_POWER_MAX_ALARM,
SENSORS_SUBFEATURE_POWER_CRIT_ALARM,
SENSORS_SUBFEATURE_POWER_MIN_ALARM,
SENSORS_SUBFEATURE_POWER_LCRIT_ALARM,
SENSORS_SUBFEATURE_ENERGY_INPUT = SENSORS_FEATURE_ENERGY << 8,

4
lib/sysfs.c
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@@ -280,9 +280,13 @@ static const struct subfeature_type_match power_matches[] = {
{ "cap_alarm", SENSORS_SUBFEATURE_POWER_CAP_ALARM },
{ "alarm", SENSORS_SUBFEATURE_POWER_ALARM },
{ "max", SENSORS_SUBFEATURE_POWER_MAX },
{ "min", SENSORS_SUBFEATURE_POWER_MIN },
{ "min_alarm", SENSORS_SUBFEATURE_POWER_MIN_ALARM },
{ "max_alarm", SENSORS_SUBFEATURE_POWER_MAX_ALARM },
{ "crit", SENSORS_SUBFEATURE_POWER_CRIT },
{ "lcrit", SENSORS_SUBFEATURE_POWER_LCRIT },
{ "crit_alarm", SENSORS_SUBFEATURE_POWER_CRIT_ALARM },
{ "lcrit_alarm", SENSORS_SUBFEATURE_POWER_LCRIT_ALARM },
{ "average_interval", SENSORS_SUBFEATURE_POWER_AVERAGE_INTERVAL },
{ NULL, 0 }
};

6
prog/sensors/chips.c
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@@ -562,10 +562,14 @@ static void scale_value(double *value, const char **prefixstr)
static const struct sensor_subfeature_list power_common_sensors[] = {
{ SENSORS_SUBFEATURE_POWER_ALARM, NULL, 1, NULL },
{ SENSORS_SUBFEATURE_POWER_MAX_ALARM, NULL, 1, "MIN" },
{ SENSORS_SUBFEATURE_POWER_MAX_ALARM, NULL, 1, "MAX" },
{ SENSORS_SUBFEATURE_POWER_LCRIT_ALARM, NULL, 1, "LCRIT" },
{ SENSORS_SUBFEATURE_POWER_CRIT_ALARM, NULL, 1, "CRIT" },
{ SENSORS_SUBFEATURE_POWER_CAP_ALARM, NULL, 1, "CAP" },
{ SENSORS_SUBFEATURE_POWER_MAX, NULL, 0, "max" },
{ SENSORS_SUBFEATURE_POWER_MIN, NULL, 0, "min" },
{ SENSORS_SUBFEATURE_POWER_LCRIT, NULL, 0, "lcrit" },
{ SENSORS_SUBFEATURE_POWER_CRIT, NULL, 0, "crit" },
{ SENSORS_SUBFEATURE_POWER_CAP, NULL, 0, "cap" },
{ -1, NULL, 0, NULL }
@@ -590,7 +594,7 @@ static const struct sensor_subfeature_list power_avg_sensors[] = {
{ -1, NULL, 0, NULL }
};
#define NUM_POWER_ALARMS 4
#define NUM_POWER_ALARMS 6
#define NUM_POWER_SENSORS (ARRAY_SIZE(power_common_sensors) \
+ ARRAY_SIZE(power_inst_sensors) \
- NUM_POWER_ALARMS - 2)