[GitHub] [mynewt-core] kasjer commented on a change in pull request #2173: bsp: stm32f3discovery: enable LSM303DLHC sensor

[GitBox <gi...@apache.org>]

kasjer commented on a change in pull request #2173: bsp: stm32f3discovery: enable LSM303DLHC sensor
URL: https://github.com/apache/mynewt-core/pull/2173#discussion_r373025437
 
 

 ##########
 File path: hw/bsp/stm32f3discovery/src/hal_bsp.c
 ##########
 @@ -155,6 +168,58 @@ hal_bsp_get_nvic_priority(int irq_num, uint32_t pri)
     return pri;
 }
 
+/**
+ * LSM303DLHC sensor default configuration
+ *
+ * @return 0 on success, non-zero on failure
+ */
+int
+config_lsm303dlhc_sensor(void)
+{
+#if MYNEWT_VAL(LSM303DLHC_ONB)
+    int rc;
+    struct os_dev *dev;
+    struct lsm303dlhc_cfg lsmcfg;
+
+    dev = (struct os_dev *) os_dev_open("lsm303dlhc_0", OS_TIMEOUT_NEVER, NULL);
+    assert(dev != NULL);
+
+    /* read once per sec.  API should take this value in ms. */
+    lsmcfg.accel_rate = LSM303DLHC_ACCEL_RATE_1;
+    lsmcfg.accel_range = LSM303DLHC_ACCEL_RANGE_2;
+    /* Device I2C addr for accelerometer */
+    lsmcfg.acc_addr = LSM303DLHC_ADDR_ACCEL;
+    /* Device I2C addr for magnetometer */
+    lsmcfg.mag_addr = LSM303DLHC_ADDR_MAG;
+    /* Set default mag gain to +/-1.3 gauss */
+    lsmcfg.mag_gain = LSM303DLHC_MAG_GAIN_1_3;
+    /* Set default mag sample rate to 15Hz */
+    lsmcfg.mag_rate = LSM303DLHC_MAG_RATE_15;
+
+    lsmcfg.mask = SENSOR_TYPE_ACCELEROMETER |
+                  SENSOR_TYPE_MAGNETIC_FIELD;
+
+    rc = lsm303dlhc_config((struct lsm303dlhc *) dev, &lsmcfg);
+
+    os_dev_close(dev);
+    return rc;
+#endif
+
+    return 0;
+}
+
+static void
+sensor_dev_create(void)
+{
+    int rc;
+    (void)rc;
+
+#if MYNEWT_VAL(LSM303DLHC_ONB)
+    rc = os_dev_create((struct os_dev *) &lsm303dlhc, "lsm303dlhc_0",
+      OS_DEV_INIT_PRIMARY, 0, lsm303dlhc_init, (void *)&i2c_0_itf_lis);
 
 Review comment:
   unorthodox indent

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