mirror of
https://github.com/RT-Thread/rt-thread.git
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117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*
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* Copyright (c) 2022-2024, Xiaohua Semiconductor Co., Ltd.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2024-12-30 CDT first version
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#if defined(RT_USING_USB_HOST)
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#ifdef RT_USBH_MSTORAGE
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/* menuconfig:
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1. Hardware Drivers Config ---> On-Chip Peripheral Drivers ---> Enable USB --->
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Select USB Mode (USB Host Mode)
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[*] Enable Udisk Drivers -->
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(/) Udisk mount dir
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2. RT-Thread Components ---> DFS: device virtual files system --->
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......
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[*] Enable elm0chan fatfs
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......
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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)
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*/
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/*
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* 程序清单：这是一个 usb host 读写U盘 使用例程
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* 例程导出了 usbh_readwrite 命令到控制终端
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* 命令调用格式：usbh_readwrite
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* 软件：串口助手
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* 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。
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*
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*/
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#include <unistd.h>
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#include <fcntl.h>
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#define TEST_FN "/test_usbh.c"
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static char test_data[120], buffer[120];
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void usbh_readwrite(const char *filename)
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{
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int fd;
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int index, length;
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fd = open(TEST_FN, O_WRONLY | O_CREAT | O_TRUNC, 0);
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if (fd < 0)
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{
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rt_kprintf("open file for write failed\n");
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return;
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}
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for (index = 0; index < sizeof(test_data); index ++)
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{
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test_data[index] = index + 27;
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}
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length = write(fd, test_data, sizeof(test_data));
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if (length != sizeof(test_data))
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{
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rt_kprintf("write data failed\n");
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close(fd);
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return;
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}
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close(fd);
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fd = open(TEST_FN, O_RDONLY, 0);
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if (fd < 0)
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{
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rt_kprintf("check: open file for read failed\n");
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return;
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}
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length = read(fd, buffer, sizeof(buffer));
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if (length != sizeof(buffer))
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{
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rt_kprintf("check: read file failed\n");
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close(fd);
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return;
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}
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for (index = 0; index < sizeof(test_data); index ++)
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{
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if (test_data[index] != buffer[index])
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{
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rt_kprintf("check: check data failed at %d\n", index);
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close(fd);
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return;
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}
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}
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rt_kprintf("usb host read/write udisk successful\r\n");
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close(fd);
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}
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MSH_CMD_EXPORT(usbh_readwrite, usb host read write test);
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#endif /* RT_USBH_MSTORAGE */
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#ifdef RT_USBH_HID
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#endif /* RT_USBH_HID */
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#ifdef RT_USBH_HID_MOUSE
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#endif /* RT_USBH_HID_MOUSE */
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#ifdef RT_USBH_HID_KEYBOARD
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#endif /* RT_USBH_HID_KEYBOARD */
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#endif /* RT_USING_USB_HOST */
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