diff options
Diffstat (limited to 'include/hardware/sensors.h')
| -rw-r--r-- | include/hardware/sensors.h | 56 |
1 files changed, 44 insertions, 12 deletions
diff --git a/include/hardware/sensors.h b/include/hardware/sensors.h index 610651f..883cb47 100644 --- a/include/hardware/sensors.h +++ b/include/hardware/sensors.h @@ -36,6 +36,7 @@ __BEGIN_DECLS */ #define SENSORS_HARDWARE_CONTROL "control" #define SENSORS_HARDWARE_DATA "data" +#define SENSORS_HARDWARE_POLL "poll" /** * Handles must be higher than SENSORS_HANDLE_BASE and must be unique. @@ -66,18 +67,7 @@ __BEGIN_DECLS */ #define GRAVITY_SUN (275.0f) -#define GRAVITY_MERCURY (3.70f) -#define GRAVITY_VENUS (8.87f) #define GRAVITY_EARTH (9.80665f) -#define GRAVITY_MOON (1.6f) -#define GRAVITY_MARS (3.71f) -#define GRAVITY_JUPITER (23.12f) -#define GRAVITY_SATURN (8.96f) -#define GRAVITY_URANUS (8.69f) -#define GRAVITY_NEPTUNE (11.0f) -#define GRAVITY_PLUTO (0.6f) -#define GRAVITY_DEATH_STAR_I (0.000000353036145f) -#define GRAVITY_THE_ISLAND (4.815162342f) /** Maximum magnetic field on Earth's surface */ #define MAGNETIC_FIELD_EARTH_MAX (60.0f) @@ -283,7 +273,7 @@ struct sensor_t { /* vendor of the hardware part */ const char* vendor; /* version of the hardware part + driver. The value of this field is - * left to the implementation and doesn't have to be monotonicaly + * left to the implementation and doesn't have to be monotonically * increasing. */ int version; @@ -309,6 +299,38 @@ struct sensor_t { * Every device data structure must begin with hw_device_t * followed by module specific public methods and attributes. */ +struct sensors_poll_device_t { + struct hw_device_t common; + + /** Activate/deactivate one sensor. + * + * @param handle is the handle of the sensor to change. + * @param enabled set to 1 to enable, or 0 to disable the sensor. + * + * @return 0 on success, negative errno code otherwise + */ + int (*activate)(struct sensors_poll_device_t *dev, + int handle, int enabled); + + /** + * Set the delay between sensor events in nanoseconds for a given sensor + * + * @return 0 if successful, < 0 on error + */ + int (*setDelay)(struct sensors_poll_device_t *dev, + int handle, int64_t ns); + + /** + * Returns an array of sensor data. + * + * @return the number of events read on success, or -errno in case of an error. + * + */ + int (*poll)(struct sensors_poll_device_t *dev, + sensors_data_t* data, int count); +}; + + struct sensors_control_device_t { struct hw_device_t common; @@ -393,6 +415,16 @@ struct sensors_data_device_t { /** convenience API for opening and closing a device */ +static inline int sensors_open(const struct hw_module_t* module, + struct sensors_poll_device_t** device) { + return module->methods->open(module, + SENSORS_HARDWARE_POLL, (struct hw_device_t**)device); +} + +static inline int sensors_close(struct sensors_poll_device_t* device) { + return device->common.close(&device->common); +} + static inline int sensors_control_open(const struct hw_module_t* module, struct sensors_control_device_t** device) { return module->methods->open(module, |