sys/autoinit: add VL53L1X ToF ranging sensor

sys/auto_init/auto_init.c

@@ -464,6 +464,10 @@ void auto_init(void)
     extern void auto_init_veml6070(void);
     auto_init_veml6070();
 #endif
+#ifdef MODULE_VL53L1X
+    extern void auto_init_vl53l1x(void);
+    auto_init_vl53l1x();
+#endif
 
 #endif /* MODULE_AUTO_INIT_SAUL */
 

sys/auto_init/saul/auto_init_vl53l1x.c

@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2017 Mesotic SAS
+ *
+ * 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     drivers_vl53l1x
+ * @ingroup     sys_auto_init_saul
+ * @brief       Auto initialization of ST VL53L1X Time-of-Flight (ToF) ranging sensor
+ * @author      Gunar Schorcht <gunar@schorcht.net>
+ * @file
+ */
+
+#ifdef MODULE_VL53L1X
+
+#include "assert.h"
+#include "log.h"
+#include "saul_reg.h"
+#include "vl53l1x.h"
+#include "vl53l1x_params.h"
+
+/**
+ * @brief   Define the number of configured sensors
+ */
+#define VL53L1X_NUM    (sizeof(vl53l1x_params) / sizeof(vl53l1x_params[0]))
+
+/**
+ * @brief   Allocate memory for the device descriptors
+ */
+static vl53l1x_t vl53l1x_devs[VL53L1X_NUM];
+
+/**
+ * @brief   Memory for the SAUL registry entries
+ */
+static saul_reg_t saul_entries[VL53L1X_NUM];
+
+/**
+ * @brief   Define the number of saul info
+ */
+#define VL53L1X_INFO_NUM (sizeof(vl53l1x_saul_info) / sizeof(vl53l1x_saul_info[0]))
+
+/**
+ * @brief   Reference the driver structs
+ */
+extern saul_driver_t vl53l1x_saul_driver;
+
+void auto_init_vl53l1x(void)
+{
+    assert(VL53L1X_INFO_NUM == VL53L1X_NUM);
+
+    for (unsigned i = 0; i < VL53L1X_NUM; i++) {
+        LOG_DEBUG("[auto_init_saul] initializing vl53l1x #%u\n", i);
+
+        if (vl53l1x_init(&vl53l1x_devs[i], &vl53l1x_params[i]) != VL53L1X_OK) {
+            LOG_ERROR("[auto_init_saul] error initializing vl53l1x #%u\n", i);
+            continue;
+        }
+
+        saul_entries[i].dev = &(vl53l1x_devs[i]);
+        saul_entries[i].name = vl53l1x_saul_info[i].name;
+        saul_entries[i].driver = &vl53l1x_saul_driver;
+        saul_reg_add(&(saul_entries[i]));
+    }
+}
+
+#else
+typedef int dont_be_pedantic;
+#endif /* MODULE_VL53L1X */