From 7f1157e0de32f16e749267a676f6dd767fd454a9 Mon Sep 17 00:00:00 2001
From: Tangyuxin <462747508@qq.com>
Date: Tue, 26 Apr 2022 13:13:51 +0800
Subject: [PATCH] [drivers][serial] ioctl add F_SETFL cmd (#5876)

---
 components/drivers/serial/serial.c    | 7 +++++++
 components/drivers/serial/serial_v2.c | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/components/drivers/serial/serial.c b/components/drivers/serial/serial.c
index c749897a08..d39acb298f 100644
--- a/components/drivers/serial/serial.c
+++ b/components/drivers/serial/serial.c
@@ -115,6 +115,8 @@ static int serial_fops_close(struct dfs_fd *fd)
 static int serial_fops_ioctl(struct dfs_fd *fd, int cmd, void *args)
 {
     rt_device_t device;
+    int flags = (int)(rt_base_t)args;
+    int mask  = O_NONBLOCK | O_APPEND;
 
     device = (rt_device_t)fd->data;
     switch (cmd)
@@ -123,6 +125,11 @@ static int serial_fops_ioctl(struct dfs_fd *fd, int cmd, void *args)
         break;
     case FIONWRITE:
         break;
+    case F_SETFL:
+        flags &= mask;
+        fd->flags &= ~mask;
+        fd->flags |= flags;
+        break;
     }
 
     return rt_device_control(device, cmd, args);
diff --git a/components/drivers/serial/serial_v2.c b/components/drivers/serial/serial_v2.c
index 17a37a9a3e..5925a9eb6c 100644
--- a/components/drivers/serial/serial_v2.c
+++ b/components/drivers/serial/serial_v2.c
@@ -94,6 +94,8 @@ static int serial_fops_close(struct dfs_fd *fd)
 static int serial_fops_ioctl(struct dfs_fd *fd, int cmd, void *args)
 {
     rt_device_t device;
+    int flags = (int)(rt_base_t)args;
+    int mask  = O_NONBLOCK | O_APPEND;
 
     device = (rt_device_t)fd->data;
     switch (cmd)
@@ -102,6 +104,11 @@ static int serial_fops_ioctl(struct dfs_fd *fd, int cmd, void *args)
         break;
     case FIONWRITE:
         break;
+    case F_SETFL:
+        flags &= mask;
+        fd->flags &= ~mask;
+        fd->flags |= flags;
+        break;
     }
 
     return rt_device_control(device, cmd, args);
-- 
GitLab