diff options
Diffstat (limited to 'src/drivers/l3gd20')
-rw-r--r-- | src/drivers/l3gd20/l3gd20.cpp | 70 |
1 files changed, 58 insertions, 12 deletions
diff --git a/src/drivers/l3gd20/l3gd20.cpp b/src/drivers/l3gd20/l3gd20.cpp index 37e72388b..64d1a7e55 100644 --- a/src/drivers/l3gd20/l3gd20.cpp +++ b/src/drivers/l3gd20/l3gd20.cpp @@ -54,6 +54,7 @@ #include <stdio.h> #include <math.h> #include <unistd.h> +#include <getopt.h> #include <systemlib/perf_counter.h> #include <systemlib/err.h> @@ -68,6 +69,7 @@ #include <board_config.h> #include <mathlib/math/filter/LowPassFilter2p.hpp> +#include <lib/conversion/rotation.h> #define L3GD20_DEVICE_PATH "/dev/l3gd20" @@ -184,7 +186,7 @@ extern "C" { __EXPORT int l3gd20_main(int argc, char *argv[]); } class L3GD20 : public device::SPI { public: - L3GD20(int bus, const char* path, spi_dev_e device); + L3GD20(int bus, const char* path, spi_dev_e device, enum Rotation rotation); virtual ~L3GD20(); virtual int init(); @@ -229,6 +231,8 @@ private: /* true if an L3G4200D is detected */ bool _is_l3g4200d; + enum Rotation _rotation; + /** * Start automatic measurement. */ @@ -328,7 +332,7 @@ private: int self_test(); }; -L3GD20::L3GD20(int bus, const char* path, spi_dev_e device) : +L3GD20::L3GD20(int bus, const char* path, spi_dev_e device, enum Rotation rotation) : SPI("L3GD20", path, bus, device, SPIDEV_MODE3, 11*1000*1000 /* will be rounded to 10.4 MHz, within margins for L3GD20 */), _call_interval(0), _reports(nullptr), @@ -345,7 +349,8 @@ L3GD20::L3GD20(int bus, const char* path, spi_dev_e device) : _gyro_filter_x(L3GD20_DEFAULT_RATE, L3GD20_DEFAULT_FILTER_FREQ), _gyro_filter_y(L3GD20_DEFAULT_RATE, L3GD20_DEFAULT_FILTER_FREQ), _gyro_filter_z(L3GD20_DEFAULT_RATE, L3GD20_DEFAULT_FILTER_FREQ), - _is_l3g4200d(false) + _is_l3g4200d(false), + _rotation(rotation) { // enable debug() calls _debug_enabled = true; @@ -821,7 +826,7 @@ L3GD20::measure() // if the gyro doesn't have any data ready then re-schedule // for 100 microseconds later. This ensures we don't double // read a value and then miss the next value - if (stm32_gpioread(GPIO_EXTI_GYRO_DRDY) == 0) { + if (_bus == PX4_SPI_BUS_SENSORS && stm32_gpioread(GPIO_EXTI_GYRO_DRDY) == 0) { perf_count(_reschedules); hrt_call_delay(&_call, 100); return; @@ -914,6 +919,9 @@ L3GD20::measure() report.y = _gyro_filter_y.apply(report.y); report.z = _gyro_filter_z.apply(report.z); + // apply user specified rotation + rotate_3f(_rotation, report.x, report.y, report.z); + report.scaling = _gyro_range_scale; report.range_rad_s = _gyro_range_rad_s; @@ -974,7 +982,8 @@ namespace l3gd20 L3GD20 *g_dev; -void start(); +void usage(); +void start(bool external_bus, enum Rotation rotation); void test(); void reset(); void info(); @@ -983,7 +992,7 @@ void info(); * Start the driver. */ void -start() +start(bool external_bus, enum Rotation rotation) { int fd; @@ -991,7 +1000,15 @@ start() errx(0, "already started"); /* create the driver */ - g_dev = new L3GD20(PX4_SPI_BUS_SENSORS, L3GD20_DEVICE_PATH, (spi_dev_e)PX4_SPIDEV_GYRO); + if (external_bus) { +#ifdef PX4_SPI_BUS_EXT + g_dev = new L3GD20(PX4_SPI_BUS_EXT, L3GD20_DEVICE_PATH, (spi_dev_e)PX4_SPIDEV_EXT_GYRO, rotation); +#else + errx(0, "External SPI not available"); +#endif + } else { + g_dev = new L3GD20(PX4_SPI_BUS_SENSORS, L3GD20_DEVICE_PATH, (spi_dev_e)PX4_SPIDEV_GYRO, rotation); + } if (g_dev == nullptr) goto fail; @@ -1103,35 +1120,64 @@ info() exit(0); } +void +usage() +{ + warnx("missing command: try 'start', 'info', 'test', 'reset'"); + warnx("options:"); + warnx(" -X (external bus)"); + warnx(" -R rotation"); +} } // namespace int l3gd20_main(int argc, char *argv[]) { + bool external_bus = false; + int ch; + enum Rotation rotation = ROTATION_NONE; + + /* jump over start/off/etc and look at options first */ + while ((ch = getopt(argc, argv, "XR:")) != EOF) { + switch (ch) { + case 'X': + external_bus = true; + break; + case 'R': + rotation = (enum Rotation)atoi(optarg); + break; + default: + l3gd20::usage(); + exit(0); + } + } + + const char *verb = argv[optind]; + /* * Start/load the driver. */ - if (!strcmp(argv[1], "start")) - l3gd20::start(); + if (!strcmp(verb, "start")) + l3gd20::start(external_bus, rotation); /* * Test the driver/device. */ - if (!strcmp(argv[1], "test")) + if (!strcmp(verb, "test")) l3gd20::test(); /* * Reset the driver. */ - if (!strcmp(argv[1], "reset")) + if (!strcmp(verb, "reset")) l3gd20::reset(); /* * Print driver information. */ - if (!strcmp(argv[1], "info")) + if (!strcmp(verb, "info")) l3gd20::info(); errx(1, "unrecognized command, try 'start', 'test', 'reset' or 'info'"); |