LineageOS/android_hardware_libhardware
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

New sensor HAL and test

Browse Source 
Change-Id: I216e3dd0b2b45829fef7c682774d2cdd8271d4e7
This commit is contained in:
Mathias Agopian
2010-07-08 16:44:54 -07:00
parent 80107f8e92
commit b1e212e7b6
4 changed files with 235 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

56
include/hardware/sensors.h
View File

@@ -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,