1 files changed, 83 insertions, 0 deletions
diff --git a/src/device.c b/src/device.c
index 1079e2c38f..beba062952 100644
--- a/src/device.c
+++ b/src/device.c
@@ -457,4 +457,87 @@ rt_err_t rt_device_set_tx_complete(rt_device_t dev,
 }
 RTM_EXPORT(rt_device_set_tx_complete);
 
+#ifdef RT_USING_DM
+/**
+ * This function  bind drvier and device
+ *
+ * @param driver the pointer of driver structure
+ * @param device the pointer of device structure
+ * @param node the pointer of fdt node structure
+ *
+ * @return the error code, RT_EOK on successfully.
+ */
+rt_err_t rt_device_bind_driver(rt_device_t device, rt_driver_t driver, void *node)
+{
+    if((!driver) || (!device))
+    {
+        return -RT_EINVAL;
+    }
+
+    device->drv = driver;
+#ifdef RT_USING_DEVICE_OPS    
+    device->ops = driver->dev_ops;
+#endif    
+    device->dtb_node = node;
+
+    return RT_EOK;
+} 
+RTM_EXPORT(rt_device_bind_driver);
+
+/**
+ * This function  create rt_device according to driver infomation
+ *
+ * @param drv the pointer of driver structure
+ * @param device_id specify the ID of the rt_device
+ *
+ * @return the error code, RT_EOK on successfully.
+ */
+rt_device_t rt_device_create_since_driver(rt_driver_t drv,int device_id)
+{
+    rt_device_t device;
+    if (!drv)
+    {
+        return RT_NULL;
+    }
+
+    device = (rt_device_t)rt_calloc(1,drv->device_size);
+    if(device == RT_NULL)
+    {
+        return RT_NULL;
+    }
+    device->device_id = device_id;
+    rt_snprintf(device->parent.name, sizeof(device->parent.name), "%s%d", drv->name, device_id);
+    return device;
+}
+RTM_EXPORT(rt_device_create_since_driver);
+
+/**
+ * This function  rt_device probe and init
+ *
+ * @param device the pointer of rt_device structure
+ * @return the error code, RT_EOK on successfully.
+ */
+rt_err_t rt_device_probe_and_init(rt_device_t device)
+{
+    int ret = -RT_ERROR;
+    if (!device)
+    {
+        return -RT_EINVAL;
+    }
+    if(!device->drv)
+    {
+        return -RT_ERROR;
+    }
+    if(device->drv->probe)
+    {
+        ret = device->drv->probe((rt_device_t)device);
+    }
+    if(device->drv->probe_init)
+    {
+        ret = device->drv->probe_init((rt_device_t)device);
+    }
+    return ret;
+}
+RTM_EXPORT(rt_device_probe_and_init);
+#endif /* RT_USING_DM */
 #endif /* RT_USING_DEVICE */