#define MAX_TYPE_SPEC_LEN 32 /* Channel type spec len; ex: "le:u10/16>>0" */
#define MAX_SENSOR_REPORT_SIZE 32 /* Sensor report buffer size */
+#define MAX_DEVICE_REPORT_SIZE 32 /* iio device scan buffer size */
#define MAX_NAME_SIZE 32
-#define MIN_SAMPLES 5
+#define MAX_REAL_DEP 3 /* Max number of base sensors a sensor can depend on */
#define ARRAY_SIZE(x) sizeof(x)/sizeof(x[0])
#define REPORTING_MODE(x) ((x) & 0x06)
const char *tag; /* Prefix such as "accel", "gyro", "temp"... */
const int type; /* Sensor type ; ex: SENSOR_TYPE_ACCELEROMETER */
const int num_channels; /* Expected iio channels for this sensor */
+ const int is_virtual; /* Is the sensor virtual or not */
struct channel_descriptor_t channel[MAX_CHANNELS];
};
/*
* Whenever we have sensor data recorded for a sensor in the associated
- * sensor_info cell, its report_pending field is set to a non-zero value
+ * sensor cell, its report_pending field is set to a non-zero value
* indicating how we got this data.
*/
#define DATA_TRIGGER 1 /* From /dev/iio:device fd */
const char* selected_trigger;
float offset; /* (cooked = raw + offset) * scale */
- float scale; /*default: 1. when set to 0, use channel specific value*/
+ float scale; /*default:1. when set to 0, use channel specific value*/
float illumincalib; /* to set the calibration for the ALS */
- float sampling_rate; /* requested events / second */
+ float requested_rate; /* requested events / second */
+ float sampling_rate; /* setup events / second */
int dev_num; /* Associated iio dev num, ex: 3 for /dev/iio:device3 */
- int enable_count;
int catalog_index;/* Associated entry within the sensor_catalog array */
int type; /* Sensor type, such as SENSOR_TYPE_GYROSCOPE */
/*
* This flag is set if we have a meta data event pending
*/
- volatile int meta_data_pending;
+ int meta_data_pending;
/*
* Timestamp closely matching the date of sampling, preferably retrieved
/* Whether or not the above buffer contains data from a device report */
int report_initialized;
+ /* Channel and sample finalization callbacks for this sensor */
struct sample_ops_t ops;
int cal_level; /* 0 means not calibrated */
- void* cal_data;
+
+ /*
+ * Depending on the sensor, calibration may take too much time at
+ * higher levels. Allow optional capping to a certain level.
+ */
+ int max_cal_level;
+
+ void *cal_data; /* Sensor calibration data, e.g. for magnetometer */
/* Filtering data for noisy sensors */
void* filter;
int thread_data_fd[2];
pthread_t acquisition_thread;
- /* For cal-uncal sensor pairs - index to the pair sensor in sensor_info */
- int pair_idx;
+ /* How many base sensors is the sensor depending on */
+ int base_count;
+ int base_idx[MAX_REAL_DEP];
uint32_t quirks; /* Bit mask expressing the need for special tweaks */
/* Note: we may have to explicitely serialize access to some fields */
+ int is_virtual;
+ /*
+ * Dependency count - for a real sensor how many active virtual sensors are
+ * depending on it
+ */
+ uint32_t ref_count;
+
+ /*
+ * Flag showing if a sensor was enabled directly by Android
+ */
+ uint32_t directly_enabled;
+
+ /*
+ * Current sample for a virtual sensor - when a report is ready we'll
+ * keep the data here until it's finally processed. Can be modified for
+ * more than one at a later time.
+ */
+ struct sensors_event_t sample;
/*
* If the QUIRK_FIELD_ORDERING bit is set in quirks, the contents of
/* Reference a few commonly used variables... */
extern int sensor_count;
extern struct sensor_t sensor_desc[MAX_SENSORS];
-extern struct sensor_info_t sensor_info[MAX_SENSORS];
+extern struct sensor_info_t sensor[MAX_SENSORS];
extern struct sensor_catalog_entry_t sensor_catalog[];
-/* We are required to be in sync with SystemClock.getNanos */
-extern int64_t ts_delta;
-
#endif
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