drivers/imu: ensure timestamp_sample adjustment isn't done as float

- larger HRT timestamps can't be represented exactly when cast to float

src/drivers/imu/bosch/bmi088/BMI088_Accelerometer.cpp

@@ -220,7 +220,7 @@ void BMI088_Accelerometer::RunImpl()
 
 					// tolerate minor jitter, leave sample to next iteration if behind by only 1
 					if (samples == _fifo_samples + 1) {
-						timestamp_sample -= FIFO_SAMPLE_DT;
+						timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 						samples--;
 					}
 

src/drivers/imu/invensense/icm20608g/ICM20608G.cpp

@@ -262,7 +262,7 @@ void ICM20608G::RunImpl()
 
 				// tolerate minor jitter, leave sample to next iteration if behind by only 1
 				if (samples == _fifo_gyro_samples + 1) {
-					timestamp_sample -= FIFO_SAMPLE_DT;
+					timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 					samples--;
 				}
 

src/drivers/imu/invensense/icm20689/ICM20689.cpp

@@ -262,7 +262,7 @@ void ICM20689::RunImpl()
 
 				// tolerate minor jitter, leave sample to next iteration if behind by only 1
 				if (samples == _fifo_gyro_samples + 1) {
-					timestamp_sample -= FIFO_SAMPLE_DT;
+					timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 					samples--;
 				}
 

src/drivers/imu/invensense/icm40609d/ICM40609D.cpp

@@ -225,7 +225,7 @@ void ICM40609D::RunImpl()
 
 					// tolerate minor jitter, leave sample to next iteration if behind by only 1
 					if (samples == _fifo_gyro_samples + 1) {
-						timestamp_sample -= FIFO_SAMPLE_DT;
+						timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 						samples--;
 					}
 

src/drivers/imu/invensense/icm42605/ICM42605.cpp

@@ -226,7 +226,7 @@ void ICM42605::RunImpl()
 
 					// tolerate minor jitter, leave sample to next iteration if behind by only 1
 					if (samples == _fifo_gyro_samples + 1) {
-						timestamp_sample -= FIFO_SAMPLE_DT;
+						timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 						samples--;
 					}
 

src/drivers/imu/invensense/icm42688p/ICM42688P.cpp

@@ -226,7 +226,7 @@ void ICM42688P::RunImpl()
 
 					// tolerate minor jitter, leave sample to next iteration if behind by only 1
 					if (samples == _fifo_gyro_samples + 1) {
-						timestamp_sample -= FIFO_SAMPLE_DT;
+						timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 						samples--;
 					}
 

src/drivers/imu/invensense/mpu6000/MPU6000.cpp

@@ -231,7 +231,7 @@ void MPU6000::RunImpl()
 
 				// tolerate minor jitter, leave sample to next iteration if behind by only 1
 				if (samples == _fifo_gyro_samples + 1) {
-					timestamp_sample -= FIFO_SAMPLE_DT;
+					timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 					samples--;
 				}
 

src/drivers/imu/invensense/mpu6500/MPU6500.cpp

@@ -263,7 +263,7 @@ void MPU6500::RunImpl()
 
 				// tolerate minor jitter, leave sample to next iteration if behind by only 1
 				if (samples == _fifo_gyro_samples + 1) {
-					timestamp_sample -= FIFO_SAMPLE_DT;
+					timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 					samples--;
 				}
 

src/drivers/imu/invensense/mpu9250/MPU9250.cpp

@@ -298,7 +298,7 @@ void MPU9250::RunImpl()
 
 				// tolerate minor jitter, leave sample to next iteration if behind by only 1
 				if (samples == _fifo_gyro_samples + 1) {
-					timestamp_sample -= FIFO_SAMPLE_DT;
+					timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 					samples--;
 				}
 

src/drivers/imu/invensense/mpu9250/MPU9250_I2C.cpp

@@ -231,7 +231,7 @@ void MPU9250_I2C::RunImpl()
 
 				// tolerate minor jitter, leave sample to next iteration if behind by only 1
 				if (samples == _fifo_gyro_samples + 1) {
-					timestamp_sample -= FIFO_SAMPLE_DT;
+					timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 					samples--;
 				}
 

src/drivers/imu/st/lsm9ds1/LSM9DS1.cpp

@@ -189,7 +189,7 @@ void LSM9DS1::RunImpl()
 			} else {
 				// tolerate minor jitter, leave sample to next iteration if behind by only 1
 				if (samples == _fifo_gyro_samples + 1) {
-					timestamp_sample -= FIFO_SAMPLE_DT;
+					timestamp_sample -= static_cast<int>(FIFO_SAMPLE_DT);
 					samples--;
 				}