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/*
* Copyright (c) 2022-2024, Xiaohua Semiconductor Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2024-12-30 CDT first version
*/
#include <rtthread.h>
#include <rtdevice.h>
#if defined(RT_USING_USB_HOST)
#ifdef RT_USBH_MSTORAGE
/* menuconfig:
1. Hardware Drivers Config ---> On-Chip Peripheral Drivers ---> Enable USB --->
Select USB Mode (USB Host Mode)
[*] Enable Udisk Drivers -->
(/) Udisk mount dir
2. RT-Thread Components ---> DFS: device virtual files system --->
......
[*] Enable elm-chan fatfs
......
3.如果命令执行不成功，需参考对应Board目录下的README.md文件(注意事项中的USB Host部分)
4.命令成功创建文件后，可以通过ls命令查看、通过cat命令查看文件内容、通过rm命令删除文件等操作
*/
/*
* 程序清单：这是一个 usb host 读写U盘 使用例程
* 例程导出了 usbh_readwrite 命令到控制终端
* 命令调用格式：usbh_readwrite
* 软件：串口助手
* 程序功能：MSH命令发送 usbh_readwrite，运行测试程序。通过文件系统的命令查看写入的文件，并进行读写删除等操作。
*
*/
#include <unistd.h>
#include <fcntl.h>
#define TEST_FN "/test_usbh.c"
static char test_data[120], buffer[120];
void usbh_readwrite(const char *filename)
{
int fd;
int index, length;
fd = open(TEST_FN, O_WRONLY | O_CREAT | O_TRUNC, 0);
if (fd < 0)
{
rt_kprintf("open file for write failed\n");
return;
}
for (index = 0; index < sizeof(test_data); index++)
{
test_data[index] = index + 27;
}
length = write(fd, test_data, sizeof(test_data));
if (length != sizeof(test_data))
{
rt_kprintf("write data failed\n");
close(fd);
return;
}
close(fd);
fd = open(TEST_FN, O_RDONLY, 0);
if (fd < 0)
{
rt_kprintf("check: open file for read failed\n");
return;
}
length = read(fd, buffer, sizeof(buffer));
if (length != sizeof(buffer))
{
rt_kprintf("check: read file failed\n");
close(fd);
return;
}
for (index = 0; index < sizeof(test_data); index++)
{
if (test_data[index] != buffer[index])
{
rt_kprintf("check: check data failed at %d\n", index);
close(fd);
return;
}
}
rt_kprintf("usb host read/write udisk successful\r\n");
close(fd);
}
MSH_CMD_EXPORT(usbh_readwrite, usb host read write test);
#endif /* RT_USBH_MSTORAGE */
#ifdef RT_USBH_HID
#endif /* RT_USBH_HID */
#ifdef RT_USBH_HID_MOUSE
#endif /* RT_USBH_HID_MOUSE */
#ifdef RT_USBH_HID_KEYBOARD
#endif /* RT_USBH_HID_KEYBOARD */
#endif /* RT_USING_USB_HOST */
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