sync branch rt-smart. (#6641)

* Synchronize the code of the rt mart branch to the master branch.
  * TTY device
  * Add lwP code from rt-smart
  * Add vnode in DFS, but DFS will be re-write for rt-smart
  * There are three libcpu for rt-smart:
    * arm/cortex-a, arm/aarch64
    * riscv64

Co-authored-by: Rbb666 <[email protected]>
Co-authored-by: zhkag <[email protected]>

1 files changed, 113 insertions, 0 deletions

diff --git a/src/driver.c b/src/driver.c
new file mode 100644
index 0000000000..c402249720
--- /dev/null
+++ b/src/driver.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <rtthread.h>
+#ifdef RT_USING_FDT
+#include <dtb_node.h>
+#endif
+#if defined(RT_USING_POSIX_DEVIO)
+#include <rtdevice.h> /* for wqueue_init */
+#endif
+
+/**
+ * This function driver device match with id
+ *
+ * @param drv the pointer of driver structure
+ * @param device_id the id of the device
+ *
+ * @return the error code, RT_EOK on successfully.
+ */
+rt_err_t rt_driver_match_with_id(const rt_driver_t drv,int device_id)
+{
+    rt_device_t device;
+    int ret;
+    if (!drv)
+    {
+        return -RT_EINVAL;
+    }
+    device = rt_device_create_since_driver(drv,device_id);
+    if(!device)
+    {
+        return -RT_ERROR;
+    }
+    ret = rt_device_bind_driver(device,drv,RT_NULL);
+    if(ret != 0)
+    {
+        return -RT_ERROR;
+    }
+    ret = rt_device_probe_and_init(device);
+    if(ret != 0)
+    {
+        return -RT_ERROR;
+    }
+    return ret;
+}
+
+RTM_EXPORT(rt_driver_match_with_id);
+
+#ifdef RT_USING_FDT
+/**
+ * This function driver device match with dtb_node
+ *
+ * @param drv the pointer of driver structure
+ * @param from_node dtb node entry 
+ * @param max_dev_num the max device support 
+ * 
+ * @return the error code, RT_EOK on successfully.
+ */
+rt_err_t rt_driver_match_with_dtb(const rt_driver_t drv,void *from_node,int max_dev_num)
+{
+    struct dtb_node** node_list; 
+    rt_device_t device;
+    int ret,i;
+    int total_dev_num = 0;
+    if ((!drv)||(!drv->dev_match)||(!drv->dev_match->compatible)||(!from_node)||(!drv->device_size))
+    {
+        return -RT_EINVAL;
+    }
+
+    node_list = rt_calloc(max_dev_num,sizeof(void *));
+    if(!node_list)
+    {
+        return -RT_ERROR;
+    }
+
+    ret = dtb_node_find_all_compatible_node(from_node,drv->dev_match->compatible,node_list,max_dev_num,&total_dev_num);
+    if((ret != 0) || (!total_dev_num))
+    {
+        return -RT_ERROR;
+    }
+    
+    for(i = 0; i < total_dev_num; i ++)
+    {
+        if (!dtb_node_device_is_available(node_list[i]))
+        {
+            continue;
+        }
+        device = rt_device_create_since_driver(drv,i);
+        if(!device)
+        {
+            continue;
+        }
+    
+        ret = rt_device_bind_driver(device,drv,node_list[i]);
+        if(ret != 0)
+        {
+            continue;
+        }
+        ret = rt_device_probe_and_init(device);
+        if(ret != 0)
+        {
+            continue;
+        }
+    }
+    rt_free(node_list);
+    return ret;
+}
+
+RTM_EXPORT(rt_driver_match_with_dtb);
+#endif  
+