PowLu/TencentOS-tiny
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

first commit for opensource

Browse Source 
first commit for opensource
This commit is contained in:
supowang
2019-09-16 13:19:50 +08:00
parent 08ab013b8e
commit edb2879617
6303 changed files with 5472815 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

76
examples/fatfs_through_vfs/fatfs_through_vfs_sample.c Normal file
View File

@@ -0,0 +1,76 @@
#include "tos.h"
#include "tos_hal.h"
#include "ff.h"
#include "tos_vfs.h"
#include "tos_fatfs_drv.h"
#include "tos_fatfs_vfs.h"
char buf[512];
void application_entry(void *arg)
{
int fd, ret;
extern vfs_blkdev_ops_t sd_dev;
extern vfs_fs_ops_t fatfs_ops;
tos_vfs_block_device_register("/dev/sd", &sd_dev);
tos_vfs_fs_register("fatfs_sd", &fatfs_ops);
if (tos_vfs_fs_mkfs("/dev/sd", "fatfs_sd", FM_ANY, 0) != 0) {
printf("mkfs failed!\n");
}
if (tos_vfs_fs_mount("/dev/sd", "/fs/fatfs_sd", "fatfs_sd") != 0) {
printf("mount failed!\n");
}
fd = tos_vfs_open("/fs/fatfs_sd/test_file.txt", VFS_OFLAG_CREATE_ALWAYS | VFS_OFLAG_WRITE);
if (fd < 0) {
printf("open failed!\n");
}
ret = tos_vfs_write(fd, "fatfs sample content", strlen("fatfs sample content"));
if (ret >= 0) {
printf("write ok\n");
printf("write data:\n%s\n", "fatfs sample content");
} else {
printf("write error: %d\n", ret);
}
ret = tos_vfs_close(fd);
if (ret < 0) {
printf("close failed!\n");
}
fd = tos_vfs_open("/fs/fatfs_sd/test_file.txt", VFS_OFLAG_EXISTING | VFS_OFLAG_READ);
if (fd < 0) {
printf("open file error: %d\n", ret);
}
memset(buf, 0, sizeof(buf));
ret = tos_vfs_read(fd, buf, sizeof(buf));
if (ret >= 0) {
printf("read ok: %d\n", ret);
printf("read data:\n%s\n", buf);
} else {
printf("read error: %d\n", ret);
}
////////////////////////////////////////////////
ret = tos_vfs_lseek(fd, 2, VFS_SEEK_CUR);
if (ret < 0) {
printf("lseek error\n");
}
memset(buf, 0, sizeof(buf));
ret = tos_vfs_read(fd, buf, sizeof(buf));
if (ret >= 0) {
printf("read ok: %d\n", ret);
printf("read data:\n%s\n", buf);
} else {
printf("read error: %d\n", ret);
}
/////////////////////////////////////////////////
tos_vfs_close(fd);
}