pmw3901.cpp File Reference

#include <px4_config.h>
#include <px4_defines.h>
#include <px4_getopt.h>
#include <px4_workqueue.h>
#include <drivers/device/spi.h>
#include <sys/types.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdbool.h>
#include <semaphore.h>
#include <string.h>
#include <fcntl.h>
#include <poll.h>
#include <errno.h>
#include <stdio.h>
#include <math.h>
#include <unistd.h>
#include <float.h>
#include <conversion/rotation.h>
#include <perf/perf_counter.h>
#include <systemlib/err.h>
#include <parameters/param.h>
#include <drivers/drv_hrt.h>
#include <drivers/drv_range_finder.h>
#include <drivers/device/ringbuffer.h>
#include <drivers/device/integrator.h>
#include <uORB/uORB.h>
#include <uORB/topics/subsystem_info.h>
#include <uORB/topics/optical_flow.h>
#include <uORB/topics/distance_sensor.h>
#include <uORB/topics/sensor_gyro.h>
#include <board_config.h>

Classes
class	PMW3901

Namespaces
	pmw3901
	Local functions in support of the shell command.

Macros
#define	PMW3901_SPI_BUS_SPEED   (2000000L)
#define	DIR_WRITE(a)   ((a) | (1 << 7))
#define	DIR_READ(a)   ((a) & 0x7f)
#define	PMW3901_DEVICE_PATH   "/dev/pmw3901"
#define	PMW3901_US   1000 /* 1 ms */
#define	PMW3901_SAMPLE_RATE   10000 /* 10 ms */

Functions
__EXPORT int	pmw3901_main (int argc, char *argv[])
void	pmw3901::start (int spi_bus)
	Start the driver.
void	pmw3901::stop ()
	Stop the driver. More...
void	pmw3901::test ()
	Perform some basic functional tests on the driver; make sure we can collect data from the sensor in polled and automatic modes.
void	pmw3901::reset ()
	Reset the driver. More...
void	pmw3901::info ()
	Print a little info about the driver. More...
void	pmw3901::usage ()
	Print a little info about how to start/stop/use the driver. More...

Variables
PMW3901 *	pmw3901::g_dev

Detailed Description

Author

Daniele Pettenuzzo

Driver for the pmw3901 optical flow sensor connected via SPI.