diff options
Diffstat (limited to 'src/drivers/px4flow/px4flow.cpp')
| -rw-r--r-- | src/drivers/px4flow/px4flow.cpp | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/src/drivers/px4flow/px4flow.cpp b/src/drivers/px4flow/px4flow.cpp index 62308fc65..9c9c1b0f8 100644 --- a/src/drivers/px4flow/px4flow.cpp +++ b/src/drivers/px4flow/px4flow.cpp @@ -62,6 +62,8 @@ #include <systemlib/perf_counter.h> #include <systemlib/err.h> +#include <conversion/rotation.h> + #include <drivers/drv_hrt.h> #include <drivers/drv_px4flow.h> #include <drivers/device/ringbuffer.h> @@ -73,13 +75,14 @@ #include <board_config.h> /* Configuration Constants */ -#define I2C_FLOW_ADDRESS 0x42 //* 7-bit address. 8-bit address is 0x84 -//range 0x42 - 0x49 +#define I2C_FLOW_ADDRESS 0x42 ///< 7-bit address. 8-bit address is 0x84, range 0x42 - 0x49 /* PX4FLOW Registers addresses */ -#define PX4FLOW_REG 0x16 /* Measure Register 22*/ +#define PX4FLOW_REG 0x16 ///< Measure Register 22 + +#define PX4FLOW_CONVERSION_INTERVAL 20000 ///< in microseconds! 20000 = 50 Hz 100000 = 10Hz +#define PX4FLOW_I2C_MAX_BUS_SPEED 400000 ///< 400 KHz maximum speed -#define PX4FLOW_CONVERSION_INTERVAL 20000 //in microseconds! 20000 = 50 Hz 100000 = 10Hz /* oddly, ERROR is not defined for c++ */ #ifdef ERROR # undef ERROR @@ -125,7 +128,7 @@ struct i2c_integral_frame f_integral; class PX4FLOW: public device::I2C { public: - PX4FLOW(int bus, int address = I2C_FLOW_ADDRESS); + PX4FLOW(int bus, int address = I2C_FLOW_ADDRESS, enum Rotation rotation = (enum Rotation)0); virtual ~PX4FLOW(); virtual int init(); @@ -154,6 +157,8 @@ private: perf_counter_t _sample_perf; perf_counter_t _comms_errors; perf_counter_t _buffer_overflows; + + enum Rotation _sensor_rotation; /** * Test whether the device supported by the driver is present at a @@ -199,8 +204,8 @@ private: */ extern "C" __EXPORT int px4flow_main(int argc, char *argv[]); -PX4FLOW::PX4FLOW(int bus, int address) : - I2C("PX4FLOW", PX4FLOW_DEVICE_PATH, bus, address, 400000), //400khz +PX4FLOW::PX4FLOW(int bus, int address, enum Rotation rotation) : + I2C("PX4FLOW", PX4FLOW_DEVICE_PATH, bus, address, PX4FLOW_I2C_MAX_BUS_SPEED), /* 100-400 KHz */ _reports(nullptr), _sensor_ok(false), _measure_ticks(0), @@ -208,7 +213,8 @@ PX4FLOW::PX4FLOW(int bus, int address) : _px4flow_topic(-1), _sample_perf(perf_alloc(PC_ELAPSED, "px4flow_read")), _comms_errors(perf_alloc(PC_COUNT, "px4flow_comms_errors")), - _buffer_overflows(perf_alloc(PC_COUNT, "px4flow_buffer_overflows")) + _buffer_overflows(perf_alloc(PC_COUNT, "px4flow_buffer_overflows")), + _sensor_rotation(rotation) { // enable debug() calls _debug_enabled = false; @@ -361,6 +367,13 @@ PX4FLOW::ioctl(struct file *filp, int cmd, unsigned long arg) case SENSORIOCGQUEUEDEPTH: return _reports->size(); + case SENSORIOCSROTATION: + _sensor_rotation = (enum Rotation)arg; + return OK; + + case SENSORIOCGROTATION: + return _sensor_rotation; + case SENSORIOCRESET: /* XXX implement this */ return -EINVAL; @@ -535,6 +548,10 @@ PX4FLOW::collect() report.gyro_temperature = f_integral.gyro_temperature;//Temperature * 100 in centi-degrees Celsius report.sensor_id = 0; + + /* rotate measurements according to parameter */ + float zeroval = 0.0f; + rotate_3f(_sensor_rotation, report.pixel_flow_x_integral, report.pixel_flow_y_integral, zeroval); if (_px4flow_topic < 0) { _px4flow_topic = orb_advertise(ORB_ID(optical_flow), &report); |