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/*
* Copyright (C) 2003-2012 FreeIPMI Core Team
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <errno.h>
#include "freeipmi/util/ipmi-sensor-util.h"
#include "freeipmi/record-format/ipmi-sdr-record-format.h"
#include "freeipmi/spec/ipmi-event-reading-type-code-spec.h"
#include "freeipmi/spec/ipmi-sensor-types-spec.h"
#include "freeipmi/spec/ipmi-sensor-types-oem-spec.h"
#include "freeipmi/spec/ipmi-sensor-units-spec.h"
#include "freeipmi/spec/ipmi-iana-enterprise-numbers-spec.h"
#include "freeipmi/spec/ipmi-product-id-spec.h"
#include "libcommon/ipmi-trace.h"
#include "freeipmi-portability.h"
/*
* Threshold Comparsion status
*/
static char *threshold_comparison_status_desc[] =
{
"At or Below (<=) Lower Non-Critical Threshold",
"At or Below (<=) Lower Critical Threshold",
"At or Below (<=) Lower Non-Recoverable Threshold",
"At or Above (>=) Upper Non-Critical Threshold",
"At or Above (>=) Upper Critical Threshold",
"At or Above (>=) Upper Non-Recoverable Threshold",
NULL,
};
static int threshold_comparison_status_desc_max = 0x5;
int
ipmi_get_threshold_message (uint8_t offset, char *buf, unsigned int buflen)
{
if (!buf
|| !buflen
|| offset > threshold_comparison_status_desc_max)
{
SET_ERRNO (EINVAL);
return (-1);
}
return (snprintf (buf, buflen, "%s", threshold_comparison_status_desc[offset]));
}
const char *
ipmi_get_sensor_type_string (uint8_t sensor_type)
{
if (IPMI_SENSOR_TYPE_VALID (sensor_type))
return (ipmi_sensor_types[sensor_type]);
if (IPMI_SENSOR_TYPE_IS_OEM (sensor_type))
return (ipmi_oem_sensor_type);
return (NULL);
}
const char *
ipmi_get_oem_sensor_type_string (uint8_t sensor_type,
uint8_t event_reading_code,
uint32_t manufacturer_id,
uint16_t product_id)
{
if (IPMI_SENSOR_TYPE_VALID (sensor_type))
return (ipmi_sensor_types[sensor_type]);
if (IPMI_SENSOR_TYPE_IS_OEM (sensor_type))
{
if ((manufacturer_id == IPMI_IANA_ENTERPRISE_ID_FUJITSU)
&& (product_id >= IPMI_FUJITSU_PRODUCT_ID_MIN
&& product_id <= IPMI_FUJITSU_PRODUCT_ID_MAX))
{
if (event_reading_code == IPMI_EVENT_READING_TYPE_CODE_SENSOR_SPECIFIC)
{
switch (sensor_type)
{
case IPMI_SENSOR_TYPE_OEM_FUJITSU_I2C_BUS:
return ("OEM I2C Bus");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_SYSTEM_POWER_CONSUMPTION:
return ("OEM Power Consumption");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_MEMORY_STATUS:
return ("OEM Memory Status");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_MEMORY_CONFIG:
return ("OEM Memory Config");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_MEMORY:
return ("OEM Memory");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_FAN_STATUS:
return ("OEM Fan Status");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_PSU_STATUS:
return ("OEM PSU Status");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_PSU_REDUNDANCY:
return ("OEM PSU Redundancy");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_COMMUNICATION:
return ("OEM Communication");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_FLASH:
return ("OEM Flash");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_EVENT:
return ("OEM Event");
case IPMI_SENSOR_TYPE_OEM_FUJITSU_CONFIG_BACKUP:
return ("OEM Config Backup");
default:
/* fall into generic case below */
break;
}
}
else if (event_reading_code == IPMI_EVENT_READING_TYPE_CODE_THRESHOLD)
{
/* Currently only one combination */
if (sensor_type == IPMI_SENSOR_TYPE_OEM_FUJITSU_I2C_BUS)
return ("OEM I2C Bus");
}
}
return (ipmi_oem_sensor_type);
}
return (NULL);
}
int
ipmi_sensor_decode_value (int8_t r_exponent,
int8_t b_exponent,
int16_t m,
int16_t b,
uint8_t linearization,
uint8_t analog_data_format,
uint8_t raw_data,
double *value)
{
double dval = 0.0;
if (!value
|| !IPMI_SDR_ANALOG_DATA_FORMAT_VALID (analog_data_format)
|| !IPMI_SDR_LINEARIZATION_IS_LINEAR (linearization))
{
SET_ERRNO (EINVAL);
return (-1);
}
if (analog_data_format == IPMI_SDR_ANALOG_DATA_FORMAT_UNSIGNED)
dval = (double) raw_data;
else if (analog_data_format == IPMI_SDR_ANALOG_DATA_FORMAT_1S_COMPLEMENT)
{
if (raw_data & 0x80)
raw_data++;
dval = (double)((char) raw_data);
}
else /* analog_data_format == IPMI_SDR_ANALOG_DATA_FORMAT_2S_COMPLEMENT */
dval = (double)((char) raw_data);
dval *= (double) m;
dval += (b * pow (10, b_exponent));
dval *= pow (10, r_exponent);
if (linearization == IPMI_SDR_LINEARIZATION_LN)
dval = log (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_LOG10)
dval = log10 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_LOG2)
dval = log2 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_E)
dval = exp (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_EXP10)
dval = exp10 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_EXP2)
dval = exp2 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_INVERSE)
{
if (dval != 0.0)
dval = 1.0 / dval;
}
else if (linearization == IPMI_SDR_LINEARIZATION_SQR)
dval = pow (dval, 2.0);
else if (linearization == IPMI_SDR_LINEARIZATION_CUBE)
dval = pow (dval, 3.0);
else if (linearization == IPMI_SDR_LINEARIZATION_SQRT)
dval = sqrt (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_CUBERT)
dval = cbrt (dval);
*value = dval;
return (0);
}
int
ipmi_sensor_decode_raw_value (int8_t r_exponent,
int8_t b_exponent,
int16_t m,
int16_t b,
uint8_t linearization,
uint8_t analog_data_format,
double value,
uint8_t *raw_data)
{
double dval;
uint8_t rval;
if (!value
|| !IPMI_SDR_ANALOG_DATA_FORMAT_VALID (analog_data_format)
|| !IPMI_SDR_LINEARIZATION_IS_LINEAR (linearization))
{
SET_ERRNO (EINVAL);
return (-1);
}
dval = value;
/* achu:
*
* b/c I always forget:
*
* y = log_b(x) == x = b^y
*
* log_b(x) = log_k(x)/log(k(b)
*/
/* achu: the macros M_E or M_El for 'e' is questionably portable.
* Folks online suggest just using exp(1.0) in its place. Sounds
* good to me.
*/
if (linearization == IPMI_SDR_LINEARIZATION_LN)
dval = exp (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_LOG10)
dval = exp10 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_LOG2)
dval = exp2 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_E)
dval = (log (dval)/log (exp (1.0)));
else if (linearization == IPMI_SDR_LINEARIZATION_EXP10)
dval = (log (dval)/log (10));
else if (linearization == IPMI_SDR_LINEARIZATION_EXP2)
dval = (log (dval)/log (2));
else if (linearization == IPMI_SDR_LINEARIZATION_INVERSE)
{
if (dval != 0.0)
dval = 1.0 / dval;
}
else if (linearization == IPMI_SDR_LINEARIZATION_SQR)
dval = sqrt (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_CUBE)
dval = cbrt (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_SQRT)
dval = pow (dval, 2.0);
else if (linearization == IPMI_SDR_LINEARIZATION_CUBERT)
dval = pow (dval, 3.0);
dval = (dval / pow (10, r_exponent));
dval = (dval - (b * pow (10, b_exponent)));
if (m)
dval = (dval / m);
/* Floating point arithmetic cannot guarantee us a perfect
* conversion of raw to value and back to raw. This can
* fix things.
*/
if ((dval - (int)dval) >= 0.5)
dval = ceil (dval);
else
dval = floor (dval);
if (analog_data_format == IPMI_SDR_ANALOG_DATA_FORMAT_UNSIGNED)
rval = (uint8_t) dval;
else if (analog_data_format == IPMI_SDR_ANALOG_DATA_FORMAT_1S_COMPLEMENT)
{
rval = (char)dval;
if (rval & 0x80)
rval--;
}
else /* analog_data_format == IPMI_SDR_ANALOG_DATA_FORMAT_2S_COMPLEMENT */
rval = (char)dval;
*raw_data = rval;
return (0);
}
int
ipmi_sensor_decode_tolerance (int8_t r_exponent,
int16_t m,
uint8_t linearization,
uint8_t raw_data,
double *value)
{
double dval = 0.0;
if (!value
|| !IPMI_SDR_LINEARIZATION_IS_LINEAR (linearization))
{
SET_ERRNO (EINVAL);
return (-1);
}
/* note no analog_data format, tolerance always stored as unsigned */
dval = (double) raw_data;
dval *= (double) m;
dval /= 2.0;
dval += (dval * pow (10, r_exponent));
if (linearization == IPMI_SDR_LINEARIZATION_LN)
dval = log (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_LOG10)
dval = log10 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_LOG2)
dval = log2 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_E)
dval = exp (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_EXP10)
dval = exp10 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_EXP2)
dval = exp2 (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_INVERSE)
{
if (dval != 0.0)
dval = 1.0 / dval;
}
else if (linearization == IPMI_SDR_LINEARIZATION_SQR)
dval = pow (dval, 2.0);
else if (linearization == IPMI_SDR_LINEARIZATION_CUBE)
dval = pow (dval, 3.0);
else if (linearization == IPMI_SDR_LINEARIZATION_SQRT)
dval = sqrt (dval);
else if (linearization == IPMI_SDR_LINEARIZATION_CUBERT)
dval = cbrt (dval);
*value = dval;
return (0);
}
int
ipmi_sensor_decode_accuracy (uint16_t accuracy_raw,
uint8_t accuracy_exp,
double *value)
{
double dval = 0.0;
if (!value)
{
SET_ERRNO (EINVAL);
return (-1);
}
dval = (accuracy_raw * pow (10, accuracy_exp)) / 100.0;
*value = dval;
return (0);
}
int
ipmi_sensor_decode_resolution (int8_t r_exponent,
int16_t m,
double *value)
{
double dval = 0.0;
if (!value)
{
SET_ERRNO (EINVAL);
return (-1);
}
dval = abs (m * pow (10, r_exponent));
*value = dval;
return (0);
}
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