添加rtthread相关代码

2025-06-13 14:38:32 +08:00
parent caf2d9f0c5
commit 160f9f8201
1809 changed files with 648100 additions and 10 deletions
--- a/riscv/rtthread/components/lwp/terminal/tty_ctty.c
+++ b/riscv/rtthread/components/lwp/terminal/tty_ctty.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-11-30     Shell        init ver.
+ */
+#define DBG_TAG "lwp.ctty"
+#define DBG_LVL DBG_INFO
+#include <rtdbg.h>
+
+#define TTY_CONF_INCLUDE_CCHARS
+#include "tty_config.h"
+#include "tty_internal.h"
+#include "terminal.h"
+
+static int fops_open(struct dfs_file *file)
+{
+    return -EINVAL;
+}
+
+static rt_err_t ctty_readlink(struct rt_device *dev, char *buf, int len)
+{
+    int rc = -ENXIO;
+    lwp_tty_t tp;
+    rt_session_t sess;
+    rt_processgroup_t pgrp;
+    rt_lwp_t lwp;
+
+    lwp = lwp_self();
+    if (lwp)
+    {
+        pgrp = lwp->pgrp;
+        if (pgrp)
+        {
+            sess = pgrp->session;
+            if (sess)
+            {
+                tp = sess->ctty;
+                if (tp)
+                {
+                    tty_lock(tp);
+
+                    if (lwp->pgrp == pgrp && pgrp->session == sess && sess->ctty == tp)
+                    {
+                        rt_strncpy(buf, tp->parent.parent.name, len);
+                        rc = RT_EOK;
+                    }
+
+                    tty_unlock(tp);
+                }
+            }
+        }
+    }
+
+    return rc;
+}
+
+static struct dfs_file_ops ctty_file_ops = {
+    .open = fops_open,
+};
+
+/* character device for tty */
+#ifdef RT_USING_DEVICE_OPS
+const static struct rt_device_ops tty_dev_ops = {
+    /* IO directly through device is not allowed */
+};
+#else
+#error Must enable RT_USING_DEVICE_OPS in Kconfig
+#endif
+
+rt_inline void device_setup(rt_device_t ctty)
+{
+    ctty->type = RT_Device_Class_Char;
+#ifdef RT_USING_DEVICE_OPS
+    ctty->ops = &tty_dev_ops;
+#else
+#error Must enable RT_USING_DEVICE_OPS in Kconfig
+#endif
+}
+
+/* register device to DFS */
+static int lwp_ctty_register(rt_device_t ctty)
+{
+    rt_err_t rc = -RT_ENOMEM;
+    const char *tty_name = "tty";
+
+    device_setup(ctty);
+    rc = rt_device_register(ctty, tty_name, RT_DEVICE_FLAG_DYNAMIC);
+    if (rc == RT_EOK)
+    {
+        ctty->readlink = &ctty_readlink;
+        ctty->fops = &ctty_file_ops;
+    }
+    return rc;
+}
+
+static struct rt_device ctty;
+
+static int lwp_ctty_init(void)
+{
+    return lwp_ctty_register(&ctty);
+}
+INIT_DEVICE_EXPORT(lwp_ctty_init);