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3-axis MEMS ultra low power accelerometer
Dependencies: X_NUCLEO_COMMON ST_INTERFACES
Dependents: X_NUCLEO_IKS01A3 X_NUCLEO_IKS01A3
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LIS2DW12Sensor.cpp
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00001 /** 00002 ****************************************************************************** 00003 * @file LIS2DW12Sensor.cpp 00004 * @author CLab 00005 * @version V1.0.0 00006 * @date 15 November 2018 00007 * @brief Implementation of an LIS2DW12 Inertial Measurement Unit (IMU) 3 axes 00008 * sensor. 00009 ****************************************************************************** 00010 * @attention 00011 * 00012 * <h2><center>© COPYRIGHT(c) 2018 STMicroelectronics</center></h2> 00013 * 00014 * Redistribution and use in source and binary forms, with or without modification, 00015 * are permitted provided that the following conditions are met: 00016 * 1. Redistributions of source code must retain the above copyright notice, 00017 * this list of conditions and the following disclaimer. 00018 * 2. Redistributions in binary form must reproduce the above copyright notice, 00019 * this list of conditions and the following disclaimer in the documentation 00020 * and/or other materials provided with the distribution. 00021 * 3. Neither the name of STMicroelectronics nor the names of its contributors 00022 * may be used to endorse or promote products derived from this software 00023 * without specific prior written permission. 00024 * 00025 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00026 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00027 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00028 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 00029 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00030 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00031 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00032 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00033 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00034 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00035 * 00036 ****************************************************************************** 00037 */ 00038 00039 00040 /* Includes ------------------------------------------------------------------*/ 00041 00042 #include "LIS2DW12Sensor.h" 00043 00044 00045 /* Class Implementation ------------------------------------------------------*/ 00046 00047 /** Constructor 00048 * @param i2c object of an helper class which handles the I2C peripheral 00049 * @param address the address of the component's instance 00050 * @param int1_pin the interrupt 1 pin 00051 * @param int2_pin the interrupt 2 pin 00052 */ 00053 LIS2DW12Sensor::LIS2DW12Sensor(DevI2C *i2c, uint8_t address, PinName int1_pin, PinName int2_pin) : 00054 _dev_i2c(i2c), _address(address), _cs_pin(NC), _int1_irq(int1_pin), _int2_irq(int2_pin) 00055 { 00056 assert(i2c); 00057 _dev_spi = NULL; 00058 _reg_ctx.write_reg = LIS2DW12_io_write; 00059 _reg_ctx.read_reg = LIS2DW12_io_read; 00060 _reg_ctx.handle = (void *)this; 00061 } 00062 00063 /** Constructor 00064 * @param spi object of an helper class which handles the SPI peripheral 00065 * @param cs_pin the chip select pin 00066 * @param int1_pin the interrupt 1 pin 00067 * @param int2_pin the interrupt 2 pin 00068 * @param spi_type the SPI type (4-Wires or 3-Wires) 00069 */ 00070 LIS2DW12Sensor::LIS2DW12Sensor(SPI *spi, PinName cs_pin, PinName int1_pin, PinName int2_pin, SPI_type_t spi_type) : 00071 _dev_spi(spi), _cs_pin(cs_pin), _int1_irq(int1_pin), _int2_irq(int2_pin), _spi_type(spi_type) 00072 { 00073 assert(spi); 00074 if (cs_pin == NC) { 00075 printf("ERROR LPS22HBSensor CS MUST NOT BE NC\n\r"); 00076 _dev_spi = NULL; 00077 _dev_i2c = NULL; 00078 return; 00079 } 00080 _reg_ctx.write_reg = LIS2DW12_io_write; 00081 _reg_ctx.read_reg = LIS2DW12_io_read; 00082 _reg_ctx.handle = (void *)this; 00083 _cs_pin = 1; 00084 _dev_i2c = NULL; 00085 _address = 0; 00086 00087 if (_spi_type == SPI3W) { 00088 /* Enable SPI 3-Wires on the component */ 00089 uint8_t data = 0x05; 00090 lis2dw12_write_reg(&_reg_ctx, LIS2DW12_CTRL2, &data, 1); 00091 } 00092 00093 /* Disable I2C on the component */ 00094 lis2dw12_i2c_interface_set(&_reg_ctx, LIS2DW12_I2C_DISABLE); 00095 } 00096 00097 /** 00098 * @brief Initializing the component. 00099 * @param[in] init pointer to device specific initalization structure. 00100 * @retval "0" in case of success, an error code otherwise. 00101 */ 00102 int LIS2DW12Sensor::init(void *init) 00103 { 00104 /* Enable register address automatically incremented during a multiple byte 00105 access with a serial interface. */ 00106 if (lis2dw12_auto_increment_set(&_reg_ctx, PROPERTY_ENABLE) != 0) { 00107 return 1; 00108 } 00109 00110 /* Enable BDU */ 00111 if (lis2dw12_block_data_update_set(&_reg_ctx, PROPERTY_ENABLE) != 0) { 00112 return 1; 00113 } 00114 00115 /* FIFO mode selection */ 00116 if (lis2dw12_fifo_mode_set(&_reg_ctx, LIS2DW12_BYPASS_MODE) != 0) { 00117 return 1; 00118 } 00119 00120 /* Power mode selection */ 00121 if (lis2dw12_power_mode_set(&_reg_ctx, LIS2DW12_HIGH_PERFORMANCE) != 0) { 00122 return 1; 00123 } 00124 00125 /* Output data rate selection - power down. */ 00126 if (lis2dw12_data_rate_set(&_reg_ctx, LIS2DW12_XL_ODR_OFF) != 0) { 00127 return 1; 00128 } 00129 00130 /* Full scale selection. */ 00131 if (lis2dw12_full_scale_set(&_reg_ctx, LIS2DW12_2g) != 0) { 00132 return 1; 00133 } 00134 00135 /* Select default output data rate. */ 00136 _x_last_odr = 100.0f; 00137 00138 _x_last_operating_mode = LIS2DW12_HIGH_PERFORMANCE_MODE; 00139 00140 _x_last_noise = LIS2DW12_LOW_NOISE_DISABLE; 00141 00142 _x_is_enabled = 0; 00143 00144 return 0; 00145 } 00146 00147 /** 00148 * @brief Enable LIS2DW12 Accelerator 00149 * @retval 0 in case of success, an error code otherwise 00150 */ 00151 int LIS2DW12Sensor::enable_x(void) 00152 { 00153 /* Check if the component is already enabled */ 00154 if (_x_is_enabled == 1) { 00155 return 0; 00156 } 00157 00158 /* Output data rate selection. */ 00159 if (set_x_odr_when_enabled(_x_last_odr, _x_last_operating_mode, _x_last_noise) == 1) { 00160 return 1; 00161 } 00162 00163 _x_is_enabled = 1; 00164 00165 return 0; 00166 } 00167 00168 /** 00169 * @brief Disable LIS2DW12 Accelerator 00170 * @retval 0 in case of success, an error code otherwise 00171 */ 00172 int LIS2DW12Sensor::disable_x(void) 00173 { 00174 /* Check if the component is already disabled */ 00175 if (_x_is_enabled == 0) { 00176 return 0; 00177 } 00178 00179 /* Output data rate selection - power down. */ 00180 if (lis2dw12_data_rate_set(&_reg_ctx, LIS2DW12_XL_ODR_OFF) != 0) { 00181 return 1; 00182 } 00183 00184 _x_is_enabled = 0; 00185 00186 return 0; 00187 } 00188 00189 /** 00190 * @brief Read ID of LIS2DW12 Accelerometer and Gyroscope 00191 * @param p_id the pointer where the ID of the device is stored 00192 * @retval 0 in case of success, an error code otherwise 00193 */ 00194 int LIS2DW12Sensor::read_id(uint8_t *id) 00195 { 00196 if (!id) { 00197 return 1; 00198 } 00199 00200 /* Read WHO AM I register */ 00201 if (lis2dw12_device_id_get(&_reg_ctx, id) != 0) { 00202 return 1; 00203 } 00204 00205 return 0; 00206 } 00207 00208 /** 00209 * @brief Read data from LIS2DW12 Accelerometer 00210 * @param acceleration the pointer where the accelerometer data are stored 00211 * @retval 0 in case of success, an error code otherwise 00212 */ 00213 int LIS2DW12Sensor::get_x_axes(int32_t *acceleration) 00214 { 00215 int16_t data_raw[3]; 00216 float sensitivity = 0; 00217 00218 /* Read raw data from LIS2DW12 output register. */ 00219 if (get_x_axes_raw(data_raw) == 1) { 00220 return 1; 00221 } 00222 00223 /* Get LIS2DW12 actual sensitivity. */ 00224 if (get_x_sensitivity(&sensitivity) == 1) { 00225 return 1; 00226 } 00227 00228 /* Calculate the data. */ 00229 acceleration[0] = (int32_t)(data_raw[0] * sensitivity); 00230 acceleration[1] = (int32_t)(data_raw[1] * sensitivity); 00231 acceleration[2] = (int32_t)(data_raw[2] * sensitivity); 00232 00233 return 0; 00234 } 00235 00236 /** 00237 * @brief Read Accelerometer Sensitivity 00238 * @param sensitivity the pointer where the accelerometer sensitivity is stored 00239 * @retval 0 in case of success, an error code otherwise 00240 */ 00241 int LIS2DW12Sensor::get_x_sensitivity(float *sensitivity) 00242 { 00243 int32_t ret = 0; 00244 lis2dw12_fs_t full_scale; 00245 lis2dw12_mode_t mode; 00246 00247 /* Read actual full scale selection from sensor. */ 00248 if (lis2dw12_full_scale_get(&_reg_ctx, &full_scale) != 0) { 00249 return 1; 00250 } 00251 00252 /* Read actual power mode selection from sensor. */ 00253 if (lis2dw12_power_mode_get(&_reg_ctx, &mode) != 0) { 00254 return 1; 00255 } 00256 00257 switch (mode) { 00258 case LIS2DW12_CONT_LOW_PWR_12bit: 00259 case LIS2DW12_SINGLE_LOW_PWR_12bit: 00260 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_12bit: 00261 case LIS2DW12_SINGLE_LOW_LOW_NOISE_PWR_12bit: 00262 switch (full_scale) { 00263 case LIS2DW12_2g: 00264 *sensitivity = LIS2DW12_ACC_SENSITIVITY_FOR_FS_2G_LOPOW1_MODE; 00265 break; 00266 00267 case LIS2DW12_4g: 00268 *sensitivity = LIS2DW12_ACC_SENSITIVITY_FOR_FS_4G_LOPOW1_MODE; 00269 break; 00270 00271 case LIS2DW12_8g: 00272 *sensitivity = LIS2DW12_ACC_SENSITIVITY_FOR_FS_8G_LOPOW1_MODE; 00273 break; 00274 00275 case LIS2DW12_16g: 00276 *sensitivity = LIS2DW12_ACC_SENSITIVITY_FOR_FS_16G_LOPOW1_MODE; 00277 break; 00278 00279 default: 00280 *sensitivity = -1.0f; 00281 ret = 1; 00282 break; 00283 } 00284 break; 00285 00286 case LIS2DW12_HIGH_PERFORMANCE: 00287 case LIS2DW12_CONT_LOW_PWR_4: 00288 case LIS2DW12_CONT_LOW_PWR_3: 00289 case LIS2DW12_CONT_LOW_PWR_2: 00290 case LIS2DW12_SINGLE_LOW_PWR_4: 00291 case LIS2DW12_SINGLE_LOW_PWR_3: 00292 case LIS2DW12_SINGLE_LOW_PWR_2: 00293 case LIS2DW12_HIGH_PERFORMANCE_LOW_NOISE: 00294 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_4: 00295 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_3: 00296 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_2: 00297 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_4: 00298 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_3: 00299 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_2: 00300 switch (full_scale) { 00301 case LIS2DW12_2g: 00302 *sensitivity = LIS2DW12_ACC_SENSITIVITY_FOR_FS_2G_OTHER_MODES; 00303 break; 00304 00305 case LIS2DW12_4g: 00306 *sensitivity = LIS2DW12_ACC_SENSITIVITY_FOR_FS_4G_OTHER_MODES; 00307 break; 00308 00309 case LIS2DW12_8g: 00310 *sensitivity = LIS2DW12_ACC_SENSITIVITY_FOR_FS_8G_OTHER_MODES; 00311 break; 00312 00313 case LIS2DW12_16g: 00314 *sensitivity = LIS2DW12_ACC_SENSITIVITY_FOR_FS_16G_OTHER_MODES; 00315 break; 00316 00317 default: 00318 *sensitivity = -1.0f; 00319 ret = 1; 00320 break; 00321 } 00322 break; 00323 00324 default: 00325 *sensitivity = -1.0f; 00326 ret = 1; 00327 break; 00328 } 00329 00330 return ret; 00331 } 00332 00333 /** 00334 * @brief Read raw data from LIS2DW12 Accelerometer 00335 * @param value the pointer where the accelerometer raw data are stored 00336 * @retval 0 in case of success, an error code otherwise 00337 */ 00338 int LIS2DW12Sensor::get_x_axes_raw(int16_t *value) 00339 { 00340 axis3bit16_t data_raw; 00341 lis2dw12_mode_t mode; 00342 int32_t ret = 0; 00343 00344 /* Read actual power mode selection from sensor. */ 00345 if (lis2dw12_power_mode_get(&_reg_ctx, &mode) != 0) { 00346 return 1; 00347 } 00348 00349 /* Read raw data values. */ 00350 if (lis2dw12_acceleration_raw_get(&_reg_ctx, data_raw.u8bit) != 0) { 00351 return 1; 00352 } 00353 00354 switch (mode) { 00355 case LIS2DW12_CONT_LOW_PWR_12bit: 00356 case LIS2DW12_SINGLE_LOW_PWR_12bit: 00357 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_12bit: 00358 case LIS2DW12_SINGLE_LOW_LOW_NOISE_PWR_12bit: 00359 /* Data format 12 bits. */ 00360 value[0] = (data_raw.i16bit[0] / 16); 00361 value[1] = (data_raw.i16bit[1] / 16); 00362 value[2] = (data_raw.i16bit[2] / 16); 00363 break; 00364 00365 case LIS2DW12_HIGH_PERFORMANCE: 00366 case LIS2DW12_CONT_LOW_PWR_4: 00367 case LIS2DW12_CONT_LOW_PWR_3: 00368 case LIS2DW12_CONT_LOW_PWR_2: 00369 case LIS2DW12_SINGLE_LOW_PWR_4: 00370 case LIS2DW12_SINGLE_LOW_PWR_3: 00371 case LIS2DW12_SINGLE_LOW_PWR_2: 00372 case LIS2DW12_HIGH_PERFORMANCE_LOW_NOISE: 00373 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_4: 00374 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_3: 00375 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_2: 00376 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_4: 00377 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_3: 00378 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_2: 00379 /* Data format 14 bits. */ 00380 value[0] = (data_raw.i16bit[0] / 4); 00381 value[1] = (data_raw.i16bit[1] / 4); 00382 value[2] = (data_raw.i16bit[2] / 4); 00383 break; 00384 00385 default: 00386 ret = 1; 00387 break; 00388 } 00389 00390 return ret; 00391 } 00392 00393 /** 00394 * @brief Read LIS2DW12 Accelerometer output data rate 00395 * @param odr the pointer to the output data rate 00396 * @retval 0 in case of success, an error code otherwise 00397 */ 00398 int LIS2DW12Sensor::get_x_odr(float *odr) 00399 { 00400 int32_t ret = 0; 00401 lis2dw12_odr_t odr_low_level; 00402 lis2dw12_mode_t mode; 00403 00404 /* Get current output data rate. */ 00405 if (lis2dw12_data_rate_get(&_reg_ctx, &odr_low_level) != 0) { 00406 return 1; 00407 } 00408 00409 /* Read actual power mode selection from sensor. */ 00410 if (lis2dw12_power_mode_get(&_reg_ctx, &mode) != 0) { 00411 return 1; 00412 } 00413 00414 switch (odr_low_level) { 00415 case LIS2DW12_XL_ODR_OFF: 00416 case LIS2DW12_XL_SET_SW_TRIG: 00417 case LIS2DW12_XL_SET_PIN_TRIG: 00418 *odr = 0.0f; 00419 break; 00420 00421 case LIS2DW12_XL_ODR_1Hz6_LP_ONLY: 00422 switch (mode) { 00423 case LIS2DW12_HIGH_PERFORMANCE: 00424 case LIS2DW12_HIGH_PERFORMANCE_LOW_NOISE: 00425 *odr = 12.5f; 00426 break; 00427 00428 case LIS2DW12_CONT_LOW_PWR_4: 00429 case LIS2DW12_CONT_LOW_PWR_3: 00430 case LIS2DW12_CONT_LOW_PWR_2: 00431 case LIS2DW12_CONT_LOW_PWR_12bit: 00432 case LIS2DW12_SINGLE_LOW_PWR_4: 00433 case LIS2DW12_SINGLE_LOW_PWR_3: 00434 case LIS2DW12_SINGLE_LOW_PWR_2: 00435 case LIS2DW12_SINGLE_LOW_PWR_12bit: 00436 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_4: 00437 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_3: 00438 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_2: 00439 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_12bit: 00440 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_4: 00441 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_3: 00442 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_2: 00443 case LIS2DW12_SINGLE_LOW_LOW_NOISE_PWR_12bit: 00444 *odr = 1.6f; 00445 break; 00446 00447 default: 00448 *odr = -1.0f; 00449 ret = 1; 00450 break; 00451 } 00452 break; 00453 00454 case LIS2DW12_XL_ODR_12Hz5: 00455 *odr = 12.5f; 00456 break; 00457 00458 case LIS2DW12_XL_ODR_25Hz: 00459 *odr = 25.0f; 00460 break; 00461 00462 case LIS2DW12_XL_ODR_50Hz: 00463 *odr = 50.0f; 00464 break; 00465 00466 case LIS2DW12_XL_ODR_100Hz: 00467 *odr = 100.0f; 00468 break; 00469 00470 case LIS2DW12_XL_ODR_200Hz: 00471 *odr = 200.0f; 00472 break; 00473 00474 case LIS2DW12_XL_ODR_400Hz: 00475 switch (mode) { 00476 case LIS2DW12_HIGH_PERFORMANCE: 00477 case LIS2DW12_HIGH_PERFORMANCE_LOW_NOISE: 00478 *odr = 400.0f; 00479 break; 00480 00481 case LIS2DW12_CONT_LOW_PWR_4: 00482 case LIS2DW12_CONT_LOW_PWR_3: 00483 case LIS2DW12_CONT_LOW_PWR_2: 00484 case LIS2DW12_CONT_LOW_PWR_12bit: 00485 case LIS2DW12_SINGLE_LOW_PWR_4: 00486 case LIS2DW12_SINGLE_LOW_PWR_3: 00487 case LIS2DW12_SINGLE_LOW_PWR_2: 00488 case LIS2DW12_SINGLE_LOW_PWR_12bit: 00489 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_4: 00490 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_3: 00491 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_2: 00492 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_12bit: 00493 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_4: 00494 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_3: 00495 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_2: 00496 case LIS2DW12_SINGLE_LOW_LOW_NOISE_PWR_12bit: 00497 *odr = 200.0f; 00498 break; 00499 00500 default: 00501 *odr = -1.0f; 00502 ret = 1; 00503 break; 00504 } 00505 break; 00506 00507 case LIS2DW12_XL_ODR_800Hz: 00508 switch (mode) { 00509 case LIS2DW12_HIGH_PERFORMANCE: 00510 case LIS2DW12_HIGH_PERFORMANCE_LOW_NOISE: 00511 *odr = 800.0f; 00512 break; 00513 00514 case LIS2DW12_CONT_LOW_PWR_4: 00515 case LIS2DW12_CONT_LOW_PWR_3: 00516 case LIS2DW12_CONT_LOW_PWR_2: 00517 case LIS2DW12_CONT_LOW_PWR_12bit: 00518 case LIS2DW12_SINGLE_LOW_PWR_4: 00519 case LIS2DW12_SINGLE_LOW_PWR_3: 00520 case LIS2DW12_SINGLE_LOW_PWR_2: 00521 case LIS2DW12_SINGLE_LOW_PWR_12bit: 00522 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_4: 00523 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_3: 00524 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_2: 00525 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_12bit: 00526 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_4: 00527 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_3: 00528 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_2: 00529 case LIS2DW12_SINGLE_LOW_LOW_NOISE_PWR_12bit: 00530 *odr = 200.0f; 00531 break; 00532 00533 default: 00534 *odr = -1.0f; 00535 ret = 1; 00536 break; 00537 } 00538 break; 00539 00540 case LIS2DW12_XL_ODR_1k6Hz: 00541 switch (mode) { 00542 case LIS2DW12_HIGH_PERFORMANCE: 00543 case LIS2DW12_HIGH_PERFORMANCE_LOW_NOISE: 00544 *odr = 1600.0f; 00545 break; 00546 00547 case LIS2DW12_CONT_LOW_PWR_4: 00548 case LIS2DW12_CONT_LOW_PWR_3: 00549 case LIS2DW12_CONT_LOW_PWR_2: 00550 case LIS2DW12_CONT_LOW_PWR_12bit: 00551 case LIS2DW12_SINGLE_LOW_PWR_4: 00552 case LIS2DW12_SINGLE_LOW_PWR_3: 00553 case LIS2DW12_SINGLE_LOW_PWR_2: 00554 case LIS2DW12_SINGLE_LOW_PWR_12bit: 00555 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_4: 00556 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_3: 00557 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_2: 00558 case LIS2DW12_CONT_LOW_PWR_LOW_NOISE_12bit: 00559 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_4: 00560 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_3: 00561 case LIS2DW12_SINGLE_LOW_PWR_LOW_NOISE_2: 00562 case LIS2DW12_SINGLE_LOW_LOW_NOISE_PWR_12bit: 00563 *odr = 200.0f; 00564 break; 00565 00566 default: 00567 *odr = -1.0f; 00568 ret = 1; 00569 break; 00570 } 00571 break; 00572 00573 default: 00574 *odr = -1.0f; 00575 ret = 1; 00576 break; 00577 } 00578 00579 return ret; 00580 } 00581 00582 /** 00583 * @brief Set LIS2DW12 Accelerometer output data rate 00584 * @param odr the output data rate to be set 00585 * @retval 0 in case of success, an error code otherwise 00586 */ 00587 int LIS2DW12Sensor::set_x_odr(float odr) 00588 { 00589 return set_x_odr_with_mode(odr, LIS2DW12_HIGH_PERFORMANCE_MODE, LIS2DW12_LOW_NOISE_DISABLE); 00590 } 00591 00592 /** 00593 * @brief Set LIS2DW12 Accelerometer output data rate 00594 * @param odr the output data rate to be set 00595 * @param mode the operating mode to be used 00596 * @param noise the low noise option 00597 * @retval 0 in case of success, an error code otherwise 00598 */ 00599 int LIS2DW12Sensor::set_x_odr_with_mode(float odr, LIS2DW12_Operating_Mode_t mode, LIS2DW12_Low_Noise_t noise) 00600 { 00601 if (_x_is_enabled == 1) { 00602 if (set_x_odr_when_enabled(odr, mode, noise) != 0) { 00603 return 1; 00604 } 00605 } else { 00606 if (set_x_odr_when_disabled(odr, mode, noise) != 0) { 00607 return 1; 00608 } 00609 } 00610 00611 return 0; 00612 } 00613 00614 /** 00615 * @brief Set LIS2DW12 Accelerometer output data rate when enabled 00616 * @param odr the output data rate to be set 00617 * @param mode the operating mode to be used 00618 * @param noise the low noise option 00619 * @retval 0 in case of success, an error code otherwise 00620 */ 00621 int LIS2DW12Sensor::set_x_odr_when_enabled(float odr, LIS2DW12_Operating_Mode_t mode, LIS2DW12_Low_Noise_t noise) 00622 { 00623 lis2dw12_odr_t new_odr; 00624 lis2dw12_mode_t new_power_mode; 00625 00626 switch (mode) { 00627 case LIS2DW12_HIGH_PERFORMANCE_MODE: 00628 default: 00629 switch (noise) { 00630 case LIS2DW12_LOW_NOISE_DISABLE: 00631 default: 00632 new_power_mode = LIS2DW12_HIGH_PERFORMANCE; 00633 break; 00634 case LIS2DW12_LOW_NOISE_ENABLE: 00635 new_power_mode = LIS2DW12_HIGH_PERFORMANCE_LOW_NOISE; 00636 break; 00637 } 00638 00639 /* If High Performance mode minimum ODR is 12.5Hz */ 00640 if (odr < 12.5f) { 00641 odr = 12.5f; 00642 } 00643 break; 00644 case LIS2DW12_LOW_POWER_MODE4: 00645 switch (noise) { 00646 case LIS2DW12_LOW_NOISE_DISABLE: 00647 default: 00648 new_power_mode = LIS2DW12_CONT_LOW_PWR_4; 00649 break; 00650 case LIS2DW12_LOW_NOISE_ENABLE: 00651 new_power_mode = LIS2DW12_CONT_LOW_PWR_LOW_NOISE_4; 00652 break; 00653 } 00654 00655 /* If Low Power mode maximum ODR is 200Hz */ 00656 if (odr > 200.0f) { 00657 odr = 200.0f; 00658 } 00659 break; 00660 case LIS2DW12_LOW_POWER_MODE3: 00661 switch (noise) { 00662 case LIS2DW12_LOW_NOISE_DISABLE: 00663 default: 00664 new_power_mode = LIS2DW12_CONT_LOW_PWR_3; 00665 break; 00666 case LIS2DW12_LOW_NOISE_ENABLE: 00667 new_power_mode = LIS2DW12_CONT_LOW_PWR_LOW_NOISE_3; 00668 break; 00669 } 00670 00671 /* If Low Power mode maximum ODR is 200Hz */ 00672 if (odr > 200.0f) { 00673 odr = 200.0f; 00674 } 00675 break; 00676 case LIS2DW12_LOW_POWER_MODE2: 00677 switch (noise) { 00678 case LIS2DW12_LOW_NOISE_DISABLE: 00679 default: 00680 new_power_mode = LIS2DW12_CONT_LOW_PWR_2; 00681 break; 00682 case LIS2DW12_LOW_NOISE_ENABLE: 00683 new_power_mode = LIS2DW12_CONT_LOW_PWR_LOW_NOISE_2; 00684 break; 00685 } 00686 00687 /* If Low Power mode maximum ODR is 200Hz */ 00688 if (odr > 200.0f) { 00689 odr = 200.0f; 00690 } 00691 break; 00692 case LIS2DW12_LOW_POWER_MODE1: 00693 switch (noise) { 00694 case LIS2DW12_LOW_NOISE_DISABLE: 00695 default: 00696 new_power_mode = LIS2DW12_CONT_LOW_PWR_12bit; 00697 break; 00698 case LIS2DW12_LOW_NOISE_ENABLE: 00699 new_power_mode = LIS2DW12_CONT_LOW_PWR_LOW_NOISE_12bit; 00700 break; 00701 } 00702 00703 /* If Low Power mode maximum ODR is 200Hz */ 00704 if (odr > 200.0f) { 00705 odr = 200.0f; 00706 } 00707 break; 00708 } 00709 00710 00711 new_odr = (odr <= 1.6f) ? LIS2DW12_XL_ODR_1Hz6_LP_ONLY 00712 : (odr <= 12.5f) ? LIS2DW12_XL_ODR_12Hz5 00713 : (odr <= 25.0f) ? LIS2DW12_XL_ODR_25Hz 00714 : (odr <= 50.0f) ? LIS2DW12_XL_ODR_50Hz 00715 : (odr <= 100.0f) ? LIS2DW12_XL_ODR_100Hz 00716 : (odr <= 200.0f) ? LIS2DW12_XL_ODR_200Hz 00717 : (odr <= 400.0f) ? LIS2DW12_XL_ODR_400Hz 00718 : (odr <= 800.0f) ? LIS2DW12_XL_ODR_800Hz 00719 : LIS2DW12_XL_ODR_1k6Hz; 00720 00721 /* Output data rate selection. */ 00722 if (lis2dw12_data_rate_set(&_reg_ctx, new_odr) != 0) { 00723 return 1; 00724 } 00725 00726 /* Power mode selection. */ 00727 if (lis2dw12_power_mode_set(&_reg_ctx, new_power_mode) != 0) { 00728 return 1; 00729 } 00730 00731 /* Store actual output data rate, operating mode and low noise. */ 00732 _x_last_odr = odr; 00733 _x_last_operating_mode = mode; 00734 _x_last_noise = noise; 00735 00736 return 0; 00737 } 00738 00739 /** 00740 * @brief Set LIS2DW12 Accelerometer output data rate when disabled 00741 * @param odr the output data rate to be set 00742 * @param mode the operating mode to be used 00743 * @param noise the low noise option 00744 * @retval 0 in case of success, an error code otherwise 00745 */ 00746 int LIS2DW12Sensor::set_x_odr_when_disabled(float odr, LIS2DW12_Operating_Mode_t mode, LIS2DW12_Low_Noise_t noise) 00747 { 00748 _x_last_operating_mode = mode; 00749 _x_last_noise = noise; 00750 00751 _x_last_odr = (odr <= 1.6f) ? 1.6f 00752 : (odr <= 12.5f) ? 12.5f 00753 : (odr <= 25.0f) ? 25.0f 00754 : (odr <= 50.0f) ? 50.0f 00755 : (odr <= 100.0f) ? 100.0f 00756 : (odr <= 200.0f) ? 200.0f 00757 : (odr <= 400.0f) ? 400.0f 00758 : (odr <= 800.0f) ? 800.0f 00759 : 1600.0f; 00760 00761 return 0; 00762 } 00763 00764 /** 00765 * @brief Read LIS2DW12 Accelerometer full scale 00766 * @param full_scale the pointer to the full scale 00767 * @retval 0 in case of success, an error code otherwise 00768 */ 00769 int LIS2DW12Sensor::get_x_fs(float *full_scale) 00770 { 00771 int32_t ret = 0; 00772 lis2dw12_fs_t fs_low_level; 00773 00774 /* Read actual full scale selection from sensor. */ 00775 if (lis2dw12_full_scale_get(&_reg_ctx, &fs_low_level) != 0) { 00776 return 1; 00777 } 00778 00779 switch (fs_low_level) { 00780 case LIS2DW12_2g: 00781 *full_scale = 2; 00782 break; 00783 00784 case LIS2DW12_4g: 00785 *full_scale = 4; 00786 break; 00787 00788 case LIS2DW12_8g: 00789 *full_scale = 8; 00790 break; 00791 00792 case LIS2DW12_16g: 00793 *full_scale = 16; 00794 break; 00795 00796 default: 00797 *full_scale = -1; 00798 ret = 1; 00799 break; 00800 } 00801 00802 return ret; 00803 } 00804 00805 /** 00806 * @brief Set LIS2DW12 Accelerometer full scale 00807 * @param full_scale the full scale to be set 00808 * @retval 0 in case of success, an error code otherwise 00809 */ 00810 int LIS2DW12Sensor::set_x_fs(float full_scale) 00811 { 00812 lis2dw12_fs_t new_fs; 00813 00814 /* Seems like MISRA C-2012 rule 14.3a violation but only from single file statical analysis point of view because 00815 the parameter passed to the function is not known at the moment of analysis */ 00816 new_fs = (full_scale <= 2) ? LIS2DW12_2g 00817 : (full_scale <= 4) ? LIS2DW12_4g 00818 : (full_scale <= 8) ? LIS2DW12_8g 00819 : LIS2DW12_16g; 00820 00821 if (lis2dw12_full_scale_set(&_reg_ctx, new_fs) != 0) { 00822 return 1; 00823 } 00824 00825 return 0; 00826 } 00827 00828 /** 00829 * @brief Enable the wake up detection for LIS2DW12 accelerometer sensor 00830 * @note This function sets the LIS2DW12 accelerometer ODR to 200Hz and the LIS2DW12 accelerometer full scale to 2g 00831 * @retval 0 in case of success, an error code otherwise 00832 */ 00833 int LIS2DW12Sensor::enable_wake_up_detection(void) 00834 { 00835 int32_t ret = 0; 00836 lis2dw12_ctrl4_int1_pad_ctrl_t val; 00837 00838 /* Output Data Rate selection */ 00839 if (set_x_odr(200.0f) != 0) { 00840 return 1; 00841 } 00842 00843 /* Full scale selection */ 00844 if (set_x_fs(2) != 0) { 00845 return 1; 00846 } 00847 00848 /* WAKE_DUR setting */ 00849 if (lis2dw12_wkup_dur_set(&_reg_ctx, 0x00) != 0) { 00850 return 1; 00851 } 00852 00853 /* Set wake up threshold. */ 00854 if (lis2dw12_wkup_threshold_set(&_reg_ctx, 0x02) != 0) { 00855 return 1; 00856 } 00857 00858 if (lis2dw12_pin_int1_route_get(&_reg_ctx, &val) != 0) { 00859 return 1; 00860 } 00861 00862 val.int1_wu = PROPERTY_ENABLE; 00863 00864 if (lis2dw12_pin_int1_route_set(&_reg_ctx, &val) != 0) { 00865 return 1; 00866 } 00867 00868 return ret; 00869 } 00870 00871 /** 00872 * @brief Disable the wake up detection for LIS2DW12 accelerometer sensor 00873 * @retval 0 in case of success, an error code otherwise 00874 */ 00875 int LIS2DW12Sensor::disable_wake_up_detection(void) 00876 { 00877 lis2dw12_ctrl4_int1_pad_ctrl_t ctrl4_int1_reg; 00878 lis2dw12_ctrl5_int2_pad_ctrl_t ctrl5_int2_reg; 00879 lis2dw12_ctrl_reg7_t ctrl_reg7; 00880 00881 /* Disable wake up event on INT1 pin. */ 00882 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL4_INT1_PAD_CTRL, (uint8_t *)&ctrl4_int1_reg, 1) != 0) { 00883 return 1; 00884 } 00885 00886 ctrl4_int1_reg.int1_wu = PROPERTY_DISABLE; 00887 00888 if (lis2dw12_write_reg(&_reg_ctx, LIS2DW12_CTRL4_INT1_PAD_CTRL, (uint8_t *)&ctrl4_int1_reg, 1) != 0) { 00889 return 1; 00890 } 00891 00892 /* Read INT2 Sleep Change */ 00893 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL5_INT2_PAD_CTRL, (uint8_t *)&ctrl5_int2_reg, 1) != 0) { 00894 return 1; 00895 } 00896 00897 /*Disable Interrupts bit if none event is still enabled */ 00898 if (ctrl5_int2_reg.int2_sleep_chg == 0 && ctrl4_int1_reg.int1_wu == 0 && ctrl4_int1_reg.int1_6d == 0) { 00899 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL_REG7, (uint8_t *)&ctrl_reg7, 1) != 0) { 00900 return 1; 00901 } 00902 00903 ctrl_reg7.interrupts_enable = PROPERTY_DISABLE; 00904 00905 if (lis2dw12_write_reg(&_reg_ctx, LIS2DW12_CTRL_REG7, (uint8_t *)&ctrl_reg7, 1) != 0) { 00906 return 1; 00907 } 00908 } 00909 00910 /* Reset wake up threshold. */ 00911 if (lis2dw12_wkup_threshold_set(&_reg_ctx, 0x00) != 0) { 00912 return 1; 00913 } 00914 00915 /* WAKE_DUR setting */ 00916 if (lis2dw12_wkup_dur_set(&_reg_ctx, 0x00) != 0) { 00917 return 1; 00918 } 00919 00920 return 0; 00921 } 00922 00923 /** 00924 * @brief Set the wake up threshold for LIS2DW12 accelerometer sensor 00925 * @param thr the threshold to be set 00926 * @retval 0 in case of success, an error code otherwise 00927 */ 00928 int LIS2DW12Sensor::set_wake_up_threshold(uint8_t thr) 00929 { 00930 /* Set wake up threshold. */ 00931 if (lis2dw12_wkup_threshold_set(&_reg_ctx, thr) != 0) { 00932 return 1; 00933 } 00934 00935 return 0; 00936 } 00937 00938 /** 00939 * @brief Set the wake up duration for LIS2DW12 accelerometer sensor 00940 * @param dur the duration to be set 00941 * @retval 0 in case of success, an error code otherwise 00942 */ 00943 int LIS2DW12Sensor::set_wake_up_duration(uint8_t dur) 00944 { 00945 /* Set wake up duration. */ 00946 if (lis2dw12_wkup_dur_set(&_reg_ctx, dur) != 0) { 00947 return 1; 00948 } 00949 00950 return 0; 00951 } 00952 00953 /** 00954 * @brief Enable the inactivity detection for LIS2DW12 accelerometer sensor 00955 * @retval 0 in case of success, an error code otherwise 00956 */ 00957 int LIS2DW12Sensor::enable_inactivity_detection(void) 00958 { 00959 int32_t ret = 0; 00960 lis2dw12_ctrl5_int2_pad_ctrl_t val; 00961 00962 /* Output Data Rate and Full scale must be selected externally */ 00963 00964 /* SLEEP_DUR setting */ 00965 if (lis2dw12_act_sleep_dur_set(&_reg_ctx, 0x01) != 0) { 00966 return 1; 00967 } 00968 00969 /* Set wake up threshold. */ 00970 if (lis2dw12_wkup_threshold_set(&_reg_ctx, 0x02) != 0) { 00971 return 1; 00972 } 00973 00974 /* Enable inactivity detection. */ 00975 if (lis2dw12_act_mode_set(&_reg_ctx, LIS2DW12_DETECT_ACT_INACT) != 0) { 00976 return 1; 00977 } 00978 00979 if (lis2dw12_pin_int2_route_get(&_reg_ctx, &val) != 0) { 00980 return 1; 00981 } 00982 00983 val.int2_sleep_chg = PROPERTY_ENABLE; 00984 00985 if (lis2dw12_pin_int2_route_set(&_reg_ctx, &val) != 0) { 00986 return 1; 00987 } 00988 00989 return ret; 00990 } 00991 00992 /** 00993 * @brief Disable the inactivity detection for LIS2DW12 accelerometer sensor 00994 * @retval 0 in case of success, an error code otherwise 00995 */ 00996 int LIS2DW12Sensor::disable_inactivity_detection(void) 00997 { 00998 lis2dw12_ctrl4_int1_pad_ctrl_t ctrl4_int1_reg; 00999 lis2dw12_ctrl5_int2_pad_ctrl_t ctrl5_int2_reg; 01000 lis2dw12_ctrl_reg7_t ctrl_reg7; 01001 01002 /* Disable inactivity event on INT2 pin */ 01003 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL5_INT2_PAD_CTRL, (uint8_t *)&ctrl5_int2_reg, 1) != 0) { 01004 return 1; 01005 } 01006 01007 ctrl5_int2_reg.int2_sleep_chg = PROPERTY_DISABLE; 01008 01009 if (lis2dw12_write_reg(&_reg_ctx, LIS2DW12_CTRL5_INT2_PAD_CTRL, (uint8_t *)&ctrl5_int2_reg, 1) != 0) { 01010 return 1; 01011 } 01012 01013 /* Read INT1 Wake Up event and INT1 6D Orientation event */ 01014 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL4_INT1_PAD_CTRL, (uint8_t *)&ctrl4_int1_reg, 1) != 0) { 01015 return 1; 01016 } 01017 01018 /*Disable Interrupts bit if none event is still enabled */ 01019 if (ctrl5_int2_reg.int2_sleep_chg == 0 && ctrl4_int1_reg.int1_wu == 0 && ctrl4_int1_reg.int1_6d == 0) { 01020 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL_REG7, (uint8_t *)&ctrl_reg7, 1) != 0) { 01021 return 1; 01022 } 01023 01024 ctrl_reg7.interrupts_enable = PROPERTY_DISABLE; 01025 01026 if (lis2dw12_write_reg(&_reg_ctx, LIS2DW12_CTRL_REG7, (uint8_t *)&ctrl_reg7, 1) != 0) { 01027 return 1; 01028 } 01029 } 01030 01031 /* Disable inactivity detection. */ 01032 if (lis2dw12_act_mode_set(&_reg_ctx, LIS2DW12_NO_DETECTION) != 0) { 01033 return 1; 01034 } 01035 01036 /* Reset wake up threshold. */ 01037 if (lis2dw12_wkup_threshold_set(&_reg_ctx, 0x00) != 0) { 01038 return 1; 01039 } 01040 01041 /* SLEEP_DUR setting */ 01042 if (lis2dw12_act_sleep_dur_set(&_reg_ctx, 0x00) != 0) { 01043 return 1; 01044 } 01045 01046 return 0; 01047 } 01048 01049 /** 01050 * @brief Set the sleep duration for LIS2DW12 accelerometer sensor 01051 * @param dur the duration to be set 01052 * @retval 0 in case of success, an error code otherwise 01053 */ 01054 int LIS2DW12Sensor::set_sleep_duration(uint8_t dur) 01055 { 01056 /* Set sleep duration. */ 01057 if (lis2dw12_act_sleep_dur_set(&_reg_ctx, dur) != 0) { 01058 return 1; 01059 } 01060 01061 return 0; 01062 } 01063 01064 /** 01065 * @brief Enable the 6D orientation detection for LIS2DW12 accelerometer sensor 01066 * @note This function sets the LIS2DW12 accelerometer ODR to 200Hz and the LIS2DW12 accelerometer full scale to 2g 01067 * @retval 0 in case of success, an error code otherwise 01068 */ 01069 int LIS2DW12Sensor::enable_6d_orientation(void) 01070 { 01071 int32_t ret = 0; 01072 lis2dw12_ctrl4_int1_pad_ctrl_t val; 01073 01074 /* Output Data Rate selection */ 01075 if (set_x_odr(200.0f) == 1) { 01076 return 1; 01077 } 01078 01079 /* Full scale selection. */ 01080 if (set_x_fs(2.0f) == 1) { 01081 return 1; 01082 } 01083 01084 /* 6D orientation threshold. */ 01085 if (lis2dw12_6d_threshold_set(&_reg_ctx, 2) != 0) { /* 60 degrees */ 01086 return 1; 01087 } 01088 01089 /* Enable 6D orientation event on INT1 pin */ 01090 if (lis2dw12_pin_int1_route_get(&_reg_ctx, &val) != 0) { 01091 return 1; 01092 } 01093 01094 val.int1_6d = PROPERTY_ENABLE; 01095 01096 if (lis2dw12_pin_int1_route_set(&_reg_ctx, &val) != 0) { 01097 return 1; 01098 } 01099 01100 return ret; 01101 } 01102 01103 /** 01104 * @brief Disable the 6D orientation detection for LIS2DW12 accelerometer sensor 01105 * @retval 0 in case of success, an error code otherwise 01106 */ 01107 int LIS2DW12Sensor::disable_6d_orientation(void) 01108 { 01109 lis2dw12_ctrl4_int1_pad_ctrl_t ctrl4_int1_reg; 01110 lis2dw12_ctrl5_int2_pad_ctrl_t ctrl5_int2_reg; 01111 lis2dw12_ctrl_reg7_t ctrl_reg7; 01112 01113 /* Disable 6D orientation event on INT1 pin */ 01114 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL4_INT1_PAD_CTRL, (uint8_t *)&ctrl4_int1_reg, 1) != 0) { 01115 return 1; 01116 } 01117 01118 ctrl4_int1_reg.int1_6d = PROPERTY_DISABLE; 01119 01120 if (lis2dw12_write_reg(&_reg_ctx, LIS2DW12_CTRL4_INT1_PAD_CTRL, (uint8_t *)&ctrl4_int1_reg, 1) != 0) { 01121 return 1; 01122 } 01123 01124 /* Read INT2 Sleep Change */ 01125 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL5_INT2_PAD_CTRL, (uint8_t *)&ctrl5_int2_reg, 1) != 0) { 01126 return 1; 01127 } 01128 01129 /*Disable Interrupts bit if none event is still enabled */ 01130 if (ctrl5_int2_reg.int2_sleep_chg == 0 && ctrl4_int1_reg.int1_wu == 0 && ctrl4_int1_reg.int1_6d == 0) { 01131 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL_REG7, (uint8_t *)&ctrl_reg7, 1) != 0) { 01132 return 1; 01133 } 01134 01135 ctrl_reg7.interrupts_enable = PROPERTY_DISABLE; 01136 01137 if (lis2dw12_write_reg(&_reg_ctx, LIS2DW12_CTRL_REG7, (uint8_t *)&ctrl_reg7, 1) != 0) { 01138 return 1; 01139 } 01140 } 01141 01142 /* Reset 6D orientation threshold. */ 01143 if (lis2dw12_6d_threshold_set(&_reg_ctx, 0) != 0) { 01144 return 1; 01145 } 01146 01147 return 0; 01148 } 01149 01150 /** 01151 * @brief Set the 6D orientation threshold for LIS2DW12 accelerometer sensor 01152 * @param thr the threshold to be set 01153 * @retval 0 in case of success, an error code otherwise 01154 */ 01155 int LIS2DW12Sensor::set_6d_orientation_threshold(uint8_t thr) 01156 { 01157 if (thr > 3) { 01158 return 1; 01159 } 01160 01161 if (lis2dw12_6d_threshold_set(&_reg_ctx, thr) != 0) { 01162 return 1; 01163 } 01164 01165 return 0; 01166 } 01167 01168 /** 01169 * @brief Get the 6D orientation XL axis for LIS2DW12 accelerometer sensor 01170 * @param xl the pointer to the 6D orientation XL axis 01171 * @retval 0 in case of success, an error code otherwise 01172 */ 01173 int LIS2DW12Sensor::get_6d_orientation_xl(uint8_t *xl) 01174 { 01175 lis2dw12_sixd_src_t data; 01176 01177 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_SIXD_SRC, (uint8_t *)&data, 1) != 0) { 01178 return 1; 01179 } 01180 01181 *xl = data.xl; 01182 01183 return 0; 01184 } 01185 01186 /** 01187 * @brief Get the 6D orientation XH axis for LIS2DW12 accelerometer sensor 01188 * @param xh the pointer to the 6D orientation XH axis 01189 * @retval 0 in case of success, an error code otherwise 01190 */ 01191 int LIS2DW12Sensor::get_6d_orientation_xh(uint8_t *xh) 01192 { 01193 lis2dw12_sixd_src_t data; 01194 01195 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_SIXD_SRC, (uint8_t *)&data, 1) != 0) { 01196 return 1; 01197 } 01198 01199 *xh = data.xh; 01200 01201 return 0; 01202 } 01203 01204 /** 01205 * @brief Get the 6D orientation YL axis for LIS2DW12 accelerometer sensor 01206 * @param yl the pointer to the 6D orientation YL axis 01207 * @retval 0 in case of success, an error code otherwise 01208 */ 01209 int LIS2DW12Sensor::get_6d_orientation_yl(uint8_t *yl) 01210 { 01211 lis2dw12_sixd_src_t data; 01212 01213 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_SIXD_SRC, (uint8_t *)&data, 1) != 0) { 01214 return 1; 01215 } 01216 01217 *yl = data.yl; 01218 01219 return 0; 01220 } 01221 01222 /** 01223 * @brief Get the 6D orientation YH axis for LIS2DW12 accelerometer sensor 01224 * @param yh the pointer to the 6D orientation YH axis 01225 * @retval 0 in case of success, an error code otherwise 01226 */ 01227 int LIS2DW12Sensor::get_6d_orientation_yh(uint8_t *yh) 01228 { 01229 lis2dw12_sixd_src_t data; 01230 01231 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_SIXD_SRC, (uint8_t *)&data, 1) != 0) { 01232 return 1; 01233 } 01234 01235 *yh = data.yh; 01236 01237 return 0; 01238 } 01239 01240 /** 01241 * @brief Get the 6D orientation ZL axis for LIS2DW12 accelerometer sensor 01242 * @param zl the pointer to the 6D orientation ZL axis 01243 * @retval 0 in case of success, an error code otherwise 01244 */ 01245 int LIS2DW12Sensor::get_6d_orientation_zl(uint8_t *zl) 01246 { 01247 lis2dw12_sixd_src_t data; 01248 01249 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_SIXD_SRC, (uint8_t *)&data, 1) != 0) { 01250 return 1; 01251 } 01252 01253 *zl = data.zl; 01254 01255 return 0; 01256 } 01257 01258 /** 01259 * @brief Get the 6D orientation ZH axis for LIS2DW12 accelerometer sensor 01260 * @param zh the pointer to the 6D orientation ZH axis 01261 * @retval 0 in case of success, an error code otherwise 01262 */ 01263 int LIS2DW12Sensor::get_6d_orientation_zh(uint8_t *zh) 01264 { 01265 lis2dw12_sixd_src_t data; 01266 01267 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_SIXD_SRC, (uint8_t *)&data, 1) != 0) { 01268 return 1; 01269 } 01270 01271 *zh = data.zh; 01272 01273 return 0; 01274 } 01275 01276 /** 01277 * @brief Get the status of all hardware events for LIS2DW12 accelerometer sensor 01278 * @param status the pointer to the status of all hardware events 01279 * @retval 0 in case of success, an error code otherwise 01280 */ 01281 int LIS2DW12Sensor::get_event_status(LIS2DW12_Event_Status_t *status) 01282 { 01283 lis2dw12_status_t status_reg; 01284 lis2dw12_ctrl4_int1_pad_ctrl_t ctrl4_int1_reg; 01285 lis2dw12_ctrl5_int2_pad_ctrl_t ctrl5_int2_reg; 01286 01287 (void)memset((void *)status, 0x0, sizeof(LIS2DW12_Event_Status_t)); 01288 01289 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_STATUS, (uint8_t *)&status_reg, 1) != 0) { 01290 return 1; 01291 } 01292 01293 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL4_INT1_PAD_CTRL, (uint8_t *)&ctrl4_int1_reg, 1) != 0) { 01294 return 1; 01295 } 01296 01297 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_CTRL5_INT2_PAD_CTRL, (uint8_t *)&ctrl5_int2_reg, 1) != 0) { 01298 return 1; 01299 } 01300 01301 if (ctrl4_int1_reg.int1_wu == 1U) { 01302 if (status_reg.wu_ia == 1U) { 01303 status->WakeUpStatus = 1; 01304 } 01305 } 01306 01307 if (ctrl4_int1_reg.int1_6d == 1U) { 01308 if (status_reg._6d_ia == 1U) { 01309 status->D6DOrientationStatus = 1; 01310 } 01311 } 01312 01313 if (ctrl5_int2_reg.int2_sleep_chg == 1U) { 01314 if (status_reg.sleep_state == 1U) { 01315 status->SleepStatus = 1; 01316 } 01317 } 01318 01319 return 0; 01320 } 01321 01322 /** 01323 * @brief Get the number of samples contained into the FIFO 01324 * @param num_samples the number of samples contained into the FIFO 01325 * @retval 0 in case of success, an error code otherwise 01326 */ 01327 int LIS2DW12Sensor::get_fifo_num_samples(uint16_t *num_samples) 01328 { 01329 lis2dw12_fifo_samples_t fifo_samples; 01330 01331 if (lis2dw12_read_reg(&_reg_ctx, LIS2DW12_FIFO_SAMPLES, (uint8_t *)&fifo_samples, 1) != 0) { 01332 return 1; 01333 } 01334 01335 if (fifo_samples.diff == 0x20) { 01336 *num_samples = 32; 01337 } else { 01338 *num_samples = fifo_samples.diff; 01339 } 01340 01341 return 0; 01342 } 01343 01344 /** 01345 * @brief Set the FIFO mode 01346 * @param mode FIFO mode 01347 * @retval 0 in case of success, an error code otherwise 01348 */ 01349 int LIS2DW12Sensor::set_fifo_mode(uint8_t mode) 01350 { 01351 int32_t ret = 0; 01352 01353 /* Verify that the passed parameter contains one of the valid values. */ 01354 switch ((lis2dw12_fmode_t)mode) { 01355 case LIS2DW12_BYPASS_MODE: 01356 case LIS2DW12_FIFO_MODE: 01357 case LIS2DW12_STREAM_TO_FIFO_MODE: 01358 case LIS2DW12_BYPASS_TO_STREAM_MODE: 01359 case LIS2DW12_STREAM_MODE: 01360 break; 01361 01362 default: 01363 ret = 1; 01364 break; 01365 } 01366 01367 if (ret == 1) { 01368 return ret; 01369 } 01370 01371 if (lis2dw12_fifo_mode_set(&_reg_ctx, (lis2dw12_fmode_t)mode) != 0) { 01372 return 1; 01373 } 01374 01375 return ret; 01376 } 01377 01378 /** 01379 * @brief Read the data from register 01380 * @param reg register address 01381 * @param data register data 01382 * @retval 0 in case of success, an error code otherwise 01383 */ 01384 int LIS2DW12Sensor::read_reg(uint8_t reg, uint8_t *data) 01385 { 01386 01387 if (lis2dw12_read_reg(&_reg_ctx, reg, data, 1) != 0) { 01388 return 1; 01389 } 01390 01391 return 0; 01392 } 01393 01394 /** 01395 * @brief Write the data to register 01396 * @param reg register address 01397 * @param data register data 01398 * @retval 0 in case of success, an error code otherwise 01399 */ 01400 int LIS2DW12Sensor::write_reg(uint8_t reg, uint8_t data) 01401 { 01402 01403 if (lis2dw12_write_reg(&_reg_ctx, reg, &data, 1) != 0) { 01404 return 1; 01405 } 01406 01407 return 0; 01408 } 01409 01410 01411 int32_t LIS2DW12_io_write(void *handle, uint8_t WriteAddr, uint8_t *pBuffer, uint16_t nBytesToWrite) 01412 { 01413 return ((LIS2DW12Sensor *)handle)->io_write(pBuffer, WriteAddr, nBytesToWrite); 01414 } 01415 01416 int32_t LIS2DW12_io_read(void *handle, uint8_t ReadAddr, uint8_t *pBuffer, uint16_t nBytesToRead) 01417 { 01418 return ((LIS2DW12Sensor *)handle)->io_read(pBuffer, ReadAddr, nBytesToRead); 01419 }
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