add test app for mag3110 magnetometer driver

tests/driver_mag3110/Makefile

@@ -0,0 +1,36 @@
+APPLICATION = driver_mag3110
+include ../Makefile.tests_common
+
+FEATURES_REQUIRED = periph_i2c
+
+USEMODULE += mag3110
+USEMODULE += vtimer
+
+ifneq (,$(TEST_MAG3110_I2C))
+  CFLAGS += -DTEST_MAG3110_I2C=$(TEST_MAG3110_I2C)
+else
+  CFLAGS += -DTEST_MAG3110_I2C=I2C_0
+endif
+ifneq (,$(TEST_MAG3110_ADDR))
+  CFLAGS += -DTEST_MAG3110_ADDR=$(TEST_MAG3110_ADDR)
+else
+  CFLAGS += -DTEST_MAG3110_ADDR=0x0E
+endif
+
+ifneq (,$(TEST_MAG3110_USER_OFFSET_X))
+  CFLAGS += -DTEST_MAG3110_USER_OFFSET_X=$(TEST_MAG3110_USER_OFFSET_X)
+else
+  CFLAGS += -DTEST_MAG3110_USER_OFFSET_X=-2000
+endif
+ifneq (,$(TEST_MAG3110_USER_OFFSET_Y))
+  CFLAGS += -DTEST_MAG3110_USER_OFFSET_Y=$(TEST_MAG3110_USER_OFFSET_Y)
+else
+  CFLAGS += -DTEST_MAG3110_USER_OFFSET_Y=180
+endif
+ifneq (,$(TEST_MAG3110_USER_OFFSET_Z))
+  CFLAGS += -DTEST_MAG3110_USER_OFFSET_Z=$(TEST_MAG3110_USER_OFFSET_Z)
+else
+  CFLAGS += -DTEST_MAG3110_USER_OFFSET_Z=210
+endif
+
+include $(RIOTBASE)/Makefile.include

tests/driver_mag3110/README.md

@@ -0,0 +1,10 @@
+# About
+This is a manual test application for the MAG3110 magnetometer driver.
+
+# Usage
+This test application will initialize the MAG3110 with the following parameters:
+ - output rate set to 1.25 Hz
+ - over sample ratio set to 128
+
+After initialization, the sensor reads the x-, y-, z-axis values every 1 s
+and prints them to STDOUT.

tests/driver_mag3110/main.c

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2014 Freie Universität Berlin
+ * Copyright (C) 2014 PHYTEC Messtechnik GmbH
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup tests
+ * @{
+ *
+ * @file
+ * @brief       Test application for the MPL3115A2 magnetometer driver.
+ *
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ * @author      Johann Fischer <j.fischer@phytec.de>
+ *
+ * @}
+ */
+
+#ifndef TEST_MAG3110_I2C
+#error "TEST_MAG3110_I2C not defined"
+#endif
+#ifndef TEST_MAG3110_ADDR
+#error "TEST_MAG3110_ADDR not defined"
+#endif
+
+#include <stdio.h>
+
+#include "vtimer.h"
+#include "mag3110.h"
+
+#define SLEEP       (1000 * 1000U)
+
+int main(void)
+{
+    mag3110_t dev;
+    int8_t temp;
+    int16_t x, y, z;
+    uint8_t status;
+
+    puts("MAG3110 magnetometer driver test application\n");
+    printf("Initializing MAG3110 magnetometer at I2C_%i... ", TEST_MAG3110_I2C);
+    if (mag3110_init(&dev, TEST_MAG3110_I2C, TEST_MAG3110_ADDR, MAG3110_DROS_DEFAULT) == 0) {
+        puts("[OK]\n");
+    }
+    else {
+        puts("[Failed]");
+        return -1;
+    }
+
+    if (mag3110_set_user_offset(&dev, TEST_MAG3110_USER_OFFSET_X,
+                                     TEST_MAG3110_USER_OFFSET_Y,
+                                     TEST_MAG3110_USER_OFFSET_Z )) {
+        puts("Set user offset correction failed.");
+        return -1;
+    }
+
+    if (mag3110_set_active(&dev)) {
+        puts("Measurement start failed.");
+        return -1;
+    }
+
+    while (1) {
+        vtimer_usleep(SLEEP);
+        mag3110_read(&dev, &x, &y, &z, &status);
+        printf("Field strength: X: %d Y: %d Z: %d S: %2x\n", x, y, z, status);
+        mag3110_read_dtemp(&dev, &temp);
+        printf("Die Temperature T: %d\n", temp);
+    }
+
+    return 0;
+}