accelerometer.cpp

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/*
 * @file accelerometer.cpp
 *
 * stm32f4discovery has MEMS LIS302DL
 * www.st.com/resource/en/datasheet/lis302dl.pdf
 *
 * SPI1
 * LIS302DL_SPI_SCK PA5
 * LIS302DL_SPI_MISO PA6
 * LIS302DL_SPI_MOSI PA7
 * LIS302DL_SPI_CS_PIN PE3
 *
 *
 *
 * @date May 19, 2016
 * @author Andrey Belomutskiy, (c) 2012-2020
 */
 
#include "pch.h"
 
#include "accelerometer.h"
#include "hardware.h"
 
#if EFI_ONBOARD_MEMS
#include "mpu_util.h"
#include "lis302dl.h"
#include "periodic_thread_controller.h"
 
#if (EFI_ONBOARD_MEMS_LIS2DW12 == TRUE)
#include "lis2dw12.h"
#endif
#if (EFI_ONBOARD_MEMS_LIS2DH12 == TRUE)
#include "lsm303agr.h"
#endif
#if (EFI_ONBOARD_MEMS_LIS302DL == TRUE)
#include "lis302dl.h"
#endif
#if (EFI_ONBOARD_MEMS_LIS3DSH == TRUE)
#include "lis3dsh.h"
#endif
 
/*
 * SPI1 configuration structure.
 * Speed 5.25MHz, CPHA=1, CPOL=1, 8bits frames, MSb transmitted first.
 */
static SPIConfig accelerometerSpiCfg = {
#if SPI_SUPPORTS_CIRCULAR == TRUE
    .circular = FALSE,
#endif
    .end_cb = NULL,
    /* HW dependent part.*/
    .ssport = NULL,
    .sspad = 0,
    .cr1 = SPI_CR1_BR_0 | SPI_CR1_BR_1 | SPI_CR1_CPOL | SPI_CR1_CPHA |
        SPI_CR1_8BIT_MODE,
    .cr2 = SPI_CR2_8BIT_MODE
};
 
OutputPin accelerometerChipSelect;
 
#if (EFI_ONBOARD_MEMS_LIS2DW12 == TRUE)
 
static LIS2DW12Config lis2dw12cfg = {
#if LIS2DW12_USE_SPI
    .spip = NULL,
    .spicfg = &accelerometerSpiCfg,
#endif
#ifdef LIS2DW12_USE_I2C
    /* TODO: */
#endif
    .accsensitivity = NULL,
    .accbias = NULL,
    .accoutputdatarate = LIS2DW12_ACC_ODR_25HZ,
    .accoutputresolution = LIS2DW12_ACC_OR_HP,
    .acclowpowermode = LIS2DW12_ACC_LP_MODE2,
    .accbadwidthselect = LIS2DW12_ACC_BW_ODR4,
    .accfullscale = LIS2DW12_ACC_FS_4G,
};
 
/* LIS302DL Driver: This object represent an LIS302DL instance */
static LIS2DW12Driver LIS2DW12;
 
#endif //EFI_ONBOARD_MEMS_LIS2DW12 == TRUE
 
#if (EFI_ONBOARD_MEMS_LIS2DH12 == TRUE)
 
static LSM303AGRConfig lis2dh12cfg = {
#if LSM303AGR_USE_SPI
    .spip = NULL,
    .spicfg = &accelerometerSpiCfg,
#endif
    .accsensitivity = NULL,
    .accbias = NULL,
    .accfullscale = LSM303AGR_ACC_FS_4G,
    .accoutdatarate = LSM303AGR_ACC_ODR_50Hz,
#if LSM303AGR_USE_ADVANCED
    .accmode = LSM303AGR_ACC_MODE_HRES,
    .accblockdataupdate = LSM303AGR_ACC_BDU_CONT,
    .accendianess = LSM303AGR_ACC_END_LITTLE,
#endif
    /* LIS2DW12 is Accelerometer only, ignore following */
    .compsensitivity = NULL,
    .compbias = NULL,
    .compoutputdatarate = LSM303AGR_COMP_ODR_50HZ,
#if LSM303AGR_USE_ADVANCED
    .compmode = LSM303AGR_COMP_MODE_NORM,
    .complp = LSM303AGR_COMP_LPOW_EN
#endif
};
 
/* LSM303AGR Driver: This object represent an LIS2DH12 instance */
static LSM303AGRDriver LIS2DH12;
 
#endif //EFI_ONBOARD_MEMS_LIS2DH12 == TRUE
 
#if (EFI_ONBOARD_MEMS_LIS302DL == TRUE)
static LIS302DLConfig lis302dlcfg ={
#if LIS302DL_USE_SPI
    .spip = NULL,
    .spicfg = &accelerometerSpiCfg,
#endif
#if LIS302DL_USE_I2C
    /* TODO: */
#endif
    .accsensitivity = NULL,
    .accbias = NULL,
    .accfullscale = LIS302DL_ACC_FS_8G,
    .accoutputdatarate = LIS302DL_ACC_ODR_100HZ,
#if LIS302DL_USE_ADVANCED
    .acchighpass = LIS302DL_ACC_HP_0,
#endif
};
 
static LIS302DLDriver LIS302DL;
 
#endif //EFI_ONBOARD_MEMS_LIS302DL == TRUE
 
#if (EFI_ONBOARD_MEMS_LIS3DSH == TRUE)
 
static LIS3DSHConfig lis3dshcfg ={
#if LIS3DSH_USE_SPI
    .spip = NULL,
    .spicfg = &accelerometerSpiCfg,
#endif
    .accsensitivity = NULL,
    .accbias = NULL,
    .accfullscale = LIS3DSH_ACC_FS_4G,
    .accoutputdatarate = LIS3DSH_ACC_ODR_50HZ,
#if LIS3DSH_USE_ADVANCED
    .accantialiasing = LIS3DSH_ACC_BW_50HZ,
    .accblockdataupdate = LIS3DSH_ACC_BDU_CONTINUOUS,
#endif
};
 
static LIS3DSHDriver LIS3DSH;
 
#endif //EFI_ONBOARD_MEMS_LIS3DSH == TRUE
 
enum AccelType_t {
    ACCEL_UNK = 0,
    ACCEL_LIS2DW12,
    ACCEL_LIS2DH12, // Same as LSM303
    ACCEL_LIS302DL, // STM32F4DISCOVERY (old?)
    ACCEL_LIS3DSH,  // STM32F4DISCOVERY
};
 
static AccelType_t AccelType = ACCEL_UNK;
 
class AccelController : public PeriodicController<UTILITY_THREAD_STACK_SIZE> {
public:
    AccelController() : PeriodicController("Acc SPI") { }
private:
    void PeriodicTask(efitick_t nowNt) override {
        msg_t ret = MSG_RESET;
        float acccooked[3];
 
        #if (EFI_ONBOARD_MEMS_LIS2DW12 == TRUE)
        if (AccelType == ACCEL_LIS2DW12) {
            ret = lis2dw12AccelerometerReadCooked(&LIS2DW12, acccooked);
        }
        #endif
        #if (EFI_ONBOARD_MEMS_LIS2DH12 == TRUE)
        if (AccelType == ACCEL_LIS2DH12) {
            ret = lsm303agrAccelerometerReadCooked(&LIS2DH12, acccooked);
        }
        #endif
        #if (EFI_ONBOARD_MEMS_LIS302DL == TRUE)
        if (AccelType == ACCEL_LIS302DL) {
            ret = lis302dlAccelerometerReadCooked(&LIS302DL, acccooked);
        }
        #endif
        #if (EFI_ONBOARD_MEMS_LIS3DSH == TRUE)
        if (AccelType == ACCEL_LIS3DSH) {
            ret = lis3dshAccelerometerReadCooked(&LIS3DSH, acccooked);
        }
        #endif
 
        if ((engineConfiguration->useSpiImu) && (ret == MSG_OK)) {
            /* milli-G to G */
            engine->sensors.accelerometer.lat  = acccooked[0] / 1000.0;
            engine->sensors.accelerometer.lon  = acccooked[1] / 1000.0;
            engine->sensors.accelerometer.vert = acccooked[2] / 1000.0;
        }
    }
};
 
static AccelController instance;
 
void initAccelerometer() {
#if HAL_USE_SPI
    static SPIDriver *bus;
    msg_t ret = MSG_RESET;
 
    if (!isBrainPinValid(engineConfiguration->accelerometerCsPin))
        return; // not used
 
    bus = getSpiDevice(engineConfiguration->accelerometerSpiDevice);
    if (bus == nullptr) {
        // error already reported
        return;
    }
 
    /* so far only Hellen boards share SPI device for SD card and accelerometer
     * thus need to make sure CS pin is in a well known proper state */
  if (!accelerometerChipSelect.isInitialized()) {
        accelerometerChipSelect.initPin("SPI Acc", engineConfiguration->accelerometerCsPin);
    }
    accelerometerSpiCfg.ssport = getHwPort("SPI Acc", engineConfiguration->accelerometerCsPin);
    accelerometerSpiCfg.sspad = getHwPin("SPI Acc", engineConfiguration->accelerometerCsPin);
 
    /* Try to detect any of enabled accels */
    /* Hope all device drivers know how to detect correct chip */
#if (EFI_ONBOARD_MEMS_LIS2DW12 == TRUE)
    if (ret != MSG_OK) {
        lis2dw12cfg.spip = bus;
 
        /* LIS2DW12 Object Initialization.*/
        lis2dw12ObjectInit(&LIS2DW12);
 
        /* Activates the LIS2DW12 driver.*/
        ret = lis2dw12Start(&LIS2DW12, &lis2dw12cfg);
        if (ret == MSG_OK) {
            AccelType = ACCEL_LIS2DW12;
        }
    }
#endif //EFI_ONBOARD_MEMS_LIS2DW12 == TRUE
#if (EFI_ONBOARD_MEMS_LIS2DH12 == TRUE)
    if (ret != MSG_OK) {
        lis2dh12cfg.spip = bus;
 
        /* LIS2DH12 Object Initialization.*/
        lsm303agrObjectInit(&LIS2DH12);
 
        /* Activates the LIS2DH12 driver.*/
        ret = lsm303agrStart(&LIS2DH12, &lis2dh12cfg);
        if (ret == MSG_OK) {
            AccelType = ACCEL_LIS2DH12;
        }
    }
#endif //EFI_ONBOARD_MEMS_LIS2DH12 == TRUE
#if (EFI_ONBOARD_MEMS_LIS302DL == TRUE)
    if (ret != MSG_OK) {
        lis302dlcfg.spip = bus;
 
        /* LIS302DL Object Initialization.*/
        lis302dlObjectInit(&LIS302DL);
 
        /* Activates the LIS302DL driver.*/
        ret = lis302dlStart(&LIS302DL, &lis302dlcfg);
        if (ret == MSG_OK) {
            AccelType = ACCEL_LIS302DL;
        }
    }
#endif //EFI_ONBOARD_MEMS_LIS302DL == TRUE
#if (EFI_ONBOARD_MEMS_LIS3DSH == TRUE)
    if (ret != MSG_OK) {
        lis3dshcfg.spip = bus;
 
        /* LIS3DSH Object Initialization.*/
        lis3dshObjectInit(&LIS3DSH);
 
        /* Activates the LIS3DSH driver.*/
        ret = lis3dshStart(&LIS3DSH, &lis3dshcfg);
        if (ret == MSG_OK) {
            AccelType = ACCEL_LIS3DSH;
        }
    }
#endif //EFI_ONBOARD_MEMS_LIS3DSH == TRUE
 
    if (ret == MSG_OK) {
        /* 50 Hz */
        instance.setPeriod(20 /*ms*/);
        instance.start();
        efiPrintf("accelerometer init OK");
    } else {
        efiPrintf("accelerometer init failed %d", ret);
    }
#endif /* HAL_USE_SPI */
}
 
#endif /* EFI_ONBOARD_MEMS */