* Copyright (C) 2014 Intel Corporation.
*/
+#include <stdlib.h>
#include <utils/Log.h>
+#include <cutils/properties.h>
#include <hardware/sensors.h>
#include "enumeration.h"
#define IIO_SENSOR_HAL_VERSION 1
+static int sensor_get_st_prop (int s, const char* sel, char val[MAX_NAME_SIZE])
+{
+ char prop_name[PROP_NAME_MAX];
+ char prop_val[PROP_VALUE_MAX];
+ int i = sensor_info[s].catalog_index;
+ const char *prefix = sensor_catalog[i].tag;
+
+ sprintf(prop_name, PROP_BASE, prefix, sel);
+
+ if (property_get(prop_name, prop_val, "")) {
+ strncpy(val, prop_val, MAX_NAME_SIZE-1);
+ val[MAX_NAME_SIZE-1] = '\0';
+ return 0;
+ }
+
+ return -1;
+}
+
+
+static int sensor_get_fl_prop (int s, const char* sel, float* val)
+{
+ char buf[MAX_NAME_SIZE];
+
+ if (sensor_get_st_prop(s, sel, buf))
+ return -1;
+
+ *val = (float) strtod(buf, NULL);
+ return 0;
+}
+
+
char* sensor_get_name (int s)
{
- if (sensor_info[s].friendly_name[0] == '\0') {
-
- /* If we got a iio device name from sysfs, use it */
- if (sensor_info[s].internal_name[0]) {
- snprintf(sensor_info[s].friendly_name,
- MAX_NAME_SIZE, "S%d-%s", s,
- sensor_info[s].internal_name);
- sensor_info[s].friendly_name[MAX_NAME_SIZE-1] = '\0';
- } else
- sprintf(sensor_info[s].friendly_name, "S%d", s);
+ if (sensor_info[s].friendly_name[0] != '\0' ||
+ !sensor_get_st_prop(s, "name", sensor_info[s].friendly_name))
+ return sensor_info[s].friendly_name;
+
+ /* If we got a iio device name from sysfs, use it */
+ if (sensor_info[s].internal_name[0]) {
+ snprintf(sensor_info[s].friendly_name, MAX_NAME_SIZE, "S%d-%s",
+ s, sensor_info[s].internal_name);
+ sensor_info[s].friendly_name[MAX_NAME_SIZE-1] = '\0';
+ } else {
+ sprintf(sensor_info[s].friendly_name, "S%d", s);
}
return sensor_info[s].friendly_name;
char* sensor_get_vendor (int s)
{
- if (sensor_info[s].vendor_name[0])
- return sensor_info[s].vendor_name;
+ if (sensor_info[s].vendor_name[0] ||
+ !sensor_get_st_prop(s, "vendor", sensor_info[s].vendor_name))
+ return sensor_info[s].vendor_name;
- return "<unknown>";
+ return "";
}
-int sensor_get_version (int handle)
+int sensor_get_version (int s)
{
return IIO_SENSOR_HAL_VERSION;
}
int catalog_index;
int sensor_type;
- if (sensor_info[s].max_range != 0.0)
- return sensor_info[s].max_range;
+ if (sensor_info[s].max_range != 0.0 ||
+ !sensor_get_fl_prop(s, "max_range", &sensor_info[s].max_range))
+ return sensor_info[s].max_range;
/* Try returning a sensible value given the sensor type */
float sensor_get_resolution (int s)
{
- return sensor_info[s].resolution;
+ if (sensor_info[s].resolution != 0.0 ||
+ !sensor_get_fl_prop(s, "resolution", &sensor_info[s].resolution))
+ return sensor_info[s].resolution;
+
+ return 0;
}
float sensor_get_power (int s)
{
/* mA used while sensor is in use ; not sure about volts :) */
- return sensor_info[s].power;
+ if (sensor_info[s].power != 0.0 ||
+ !sensor_get_fl_prop(s, "power", &sensor_info[s].power))
+ return sensor_info[s].power;
+
+ return 0;
}