From 9515d53dccc9a6458bfbaf8e15143928f05cb660 Mon Sep 17 00:00:00 2001
From: Far <yesiyuan2@huawei.com>
Date: Mon, 28 Jun 2021 15:04:44 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E6=81=A2=E5=A4=8D=E4=BA=86FATFS?=
 =?UTF-8?q?=E8=AE=BE=E7=BD=AE=E5=8D=B7=E6=A0=87=E7=9A=84=E5=8A=9F=E8=83=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Liteos_a FATFS需要提供格式化时设置卷标的功能，该功能在当前系统中缺失。
现在恢复该功能，使用方法与原来一致。即使用set_label设置卷标文本后，调用format对设备格式化。

Close #I3Y5G8

Signed-off-by: Far <yesiyuan2@huawei.com>
---
 fs/fat/os_adapt/fatfs.c | 52 +++++++++++++++++++++++++++++++++++++----
 fs/fat/os_adapt/fatfs.h |  2 ++
 2 files changed, 49 insertions(+), 5 deletions(-)

diff --git a/fs/fat/os_adapt/fatfs.c b/fs/fat/os_adapt/fatfs.c
index fa431c93..06c33d57 100644
--- a/fs/fat/os_adapt/fatfs.c
+++ b/fs/fat/os_adapt/fatfs.c
@@ -1776,6 +1776,45 @@ static int fatfs_set_part_info(los_part *part)
     return 0;
 }
 
+static FRESULT fatfs_setlabel(los_part *part)
+{
+    QWORD start_sector = 0;
+    BYTE fmt = 0;
+    FATFS fs;
+    FRESULT result;
+
+#ifdef LOSCFG_FS_FAT_VIRTUAL_PARTITION
+    fs.vir_flag = FS_PARENT;
+    fs.parent_fs = &fs;
+    fs.vir_amount = DISK_ERROR;
+    fs.vir_avail = FS_VIRDISABLE;
+#endif
+    if (disk_ioctl(fs.pdrv, GET_SECTOR_SIZE, &(fs.ssize)) != RES_OK) {
+        return -EIO;
+    }
+    fs.win = (BYTE *)ff_memalloc(fs.ssize);
+    if (fs.win == NULL) {
+        return -ENOMEM;
+    }
+
+    result = find_fat_partition(&fs, part, &fmt, &start_sector);
+    if (result != FR_OK) {
+        free(fs.win);
+        return -fatfs_2_vfs(result);
+    }
+
+    result = init_fatobj(&fs, fmt, start_sector);
+    if (result != FR_OK) {
+        free(fs.win);
+        return -fatfs_2_vfs(result);
+    }
+
+    result = set_volumn_label(&fs, FatLabel);
+    free(fs.win);
+
+    return result;
+}
+
 int fatfs_mkfs (struct Vnode *device, int sectors, int option)
 {
     BYTE *work_buff = NULL;
@@ -1811,19 +1850,22 @@ int fatfs_mkfs (struct Vnode *device, int sectors, int option)
         return -fatfs_2_vfs(result);
     }
 
+    result = fatfs_setlabel(part);
+    if (result == FR_OK) {
 #ifdef LOSCFG_FS_FAT_CACHE
-    ret = OsSdSync(part->disk_id);
-    if (ret != 0) {
-        return -EIO;
-    }
+        ret = OsSdSync(part->disk_id);
+        if (ret != 0) {
+            return -EIO;
+        }
 #endif
+    }
 
     ret = fatfs_set_part_info(part);
     if (ret != 0) {
         return -EIO;
     }
 
-    return 0;
+    return -fatfs_2_vfs(result);
 }
 
 int fatfs_mkdir(struct Vnode *parent, const char *name, mode_t mode, struct Vnode **vpp)
diff --git a/fs/fat/os_adapt/fatfs.h b/fs/fat/os_adapt/fatfs.h
index a9d280e5..734cf948 100644
--- a/fs/fat/os_adapt/fatfs.h
+++ b/fs/fat/os_adapt/fatfs.h
@@ -113,6 +113,8 @@ extern "C" {
 #define FMT_ANY      0x07
 #define FMT_ERASE    0x08
 
+extern char FatLabel[LABEL_LEN];
+
 int fatfs_2_vfs(int result);
 int fatfs_lookup(struct Vnode *parent, const char *name, int len, struct Vnode **vpp);
 int fatfs_create(struct Vnode *parent, const char *name, int mode, struct Vnode **vpp);