sys/auto_init: added initialization of mma8652

sys/auto_init/auto_init.c

@@ -234,6 +234,10 @@ void auto_init(void)
     extern void auto_init_lis3dh(void);
     auto_init_lis3dh();
 #endif
+#ifdef MODULE_MMA8652
+    extern void auto_init_mma8652(void);
+    auto_init_mma8652();
+#endif
 
 #endif /* MODULE_AUTO_INIT_SAUL */
 }

sys/auto_init/saul/auto_init_mma8652.c

+/*
+ * Copyright (C) 2016 Freie Universität Berlin
+ *
+ * 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     auto_init_saul
+ * @{
+ *
+ * @file
+ * @brief       Auto initialization of MMA8652 accelerometer
+ *
+ * @author      Cenk Gündoğan <mail@cgundogan.de>
+ *
+ * @}
+ */
+
+#ifdef MODULE_MMA8652
+
+#include "saul_reg.h"
+#include "mma8652.h"
+#include "mma8652_params.h"
+
+#define ENABLE_DEBUG (0)
+#include "debug.h"
+
+/**
+ * @brief   Define the number of configured sensors
+ */
+#define MMA8652_NUM     (sizeof(mma8652_params)/sizeof(mma8652_params[0]))
+
+/**
+ * @brief   Allocate memory for the device descriptors
+ */
+static mma8652_t mma8652_devs[MMA8652_NUM];
+
+/**
+ * @brief   Memory for the SAUL registry entries
+ */
+static saul_reg_t saul_entries[MMA8652_NUM];
+
+/**
+ * @brief   Reference the driver struct
+ * @{
+ */
+extern saul_driver_t mma8652_saul_driver;
+/** @} */
+
+void auto_init_mma8652(void)
+{
+    for (int i = 0; i < MMA8652_NUM; i++) {
+        const mma8652_params_t *p = &mma8652_params[i];
+
+        DEBUG("[auto_init_saul] initializing mma8652 acc sensor\n");
+
+        if (mma8652_init(&mma8652_devs[i], p->i2c, p->addr, p->rate, p->scale) < 0) {
+            DEBUG("[auto_init_saul] error during initialization\n");
+            return;
+        }
+
+        if (mma8652_set_active(&mma8652_devs[i]) < 0) {
+            DEBUG("[auto_init_saul] error activating mma8652\n");
+            return;
+        }
+
+        saul_entries[i].dev = &(mma8652_devs[i]);
+        saul_entries[i].name = mma8652_saul_info[i].name;
+        saul_entries[i].driver = &mma8652_saul_driver;
+        saul_reg_add(&(saul_entries[i]));
+    }
+}
+
+#else
+typedef int dont_be_pedantic;
+#endif /* MODULE_MMA8652 */