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rt-thread-official/components/drivers/usb/usbdevice/class/winusb.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2017-11-16 ZYH first version
*/
#include <rthw.h>
#include <rtdevice.h>
#include <drivers/usb_device.h>
#include "winusb.h"
struct winusb_device
{
struct rt_device parent;
void (*cmd_handler)(rt_uint8_t *buffer,rt_size_t size);
rt_uint8_t cmd_buff[256];
uep_t ep_out;
uep_t ep_in;
};
#define WINUSB_INTF_STR_INDEX 13
typedef struct winusb_device * winusb_device_t;
rt_align(4)
static struct udevice_descriptor dev_desc =
{
USB_DESC_LENGTH_DEVICE, //bLength;
USB_DESC_TYPE_DEVICE, //type;
USB_BCD_VERSION, //bcdUSB;
0x00, //bDeviceClass;
0x00, //bDeviceSubClass;
0x00, //bDeviceProtocol;
0x40, //bMaxPacketSize0;
_VENDOR_ID, //idVendor;
_PRODUCT_ID, //idProduct;
USB_BCD_DEVICE, //bcdDevice;
USB_STRING_MANU_INDEX, //iManufacturer;
USB_STRING_PRODUCT_INDEX, //iProduct;
USB_STRING_SERIAL_INDEX, //iSerialNumber;
USB_DYNAMIC, //bNumConfigurations;
};
//FS and HS needed
rt_align(4)
static struct usb_qualifier_descriptor dev_qualifier =
{
sizeof(dev_qualifier), //bLength
USB_DESC_TYPE_DEVICEQUALIFIER, //bDescriptorType
0x0200, //bcdUSB
0xFF, //bDeviceClass
0x00, //bDeviceSubClass
0x00, //bDeviceProtocol
64, //bMaxPacketSize0
0x01, //bNumConfigurations
0,
};
rt_align(4)
struct winusb_descriptor _winusb_desc =
{
#ifdef RT_USB_DEVICE_COMPOSITE
/* Interface Association Descriptor */
{
USB_DESC_LENGTH_IAD,
USB_DESC_TYPE_IAD,
USB_DYNAMIC,
0x01,
0xFF,
0x00,
0x00,
0x00,
},
#endif
/*interface descriptor*/
{
USB_DESC_LENGTH_INTERFACE, //bLength;
USB_DESC_TYPE_INTERFACE, //type;
USB_DYNAMIC, //bInterfaceNumber;
0x00, //bAlternateSetting;
0x02, //bNumEndpoints
0xFF, //bInterfaceClass;
0x00, //bInterfaceSubClass;
0x00, //bInterfaceProtocol;
#ifdef RT_USB_DEVICE_COMPOSITE
WINUSB_INTF_STR_INDEX,
#else
0x00, //iInterface;
#endif
},
/*endpoint descriptor*/
{
USB_DESC_LENGTH_ENDPOINT,
USB_DESC_TYPE_ENDPOINT,
USB_DYNAMIC | USB_DIR_OUT,
USB_EP_ATTR_BULK,
USB_DYNAMIC,
0x00,
},
/*endpoint descriptor*/
{
USB_DESC_LENGTH_ENDPOINT,
USB_DESC_TYPE_ENDPOINT,
USB_DYNAMIC | USB_DIR_IN,
USB_EP_ATTR_BULK,
USB_DYNAMIC,
0x00,
},
};
rt_align(4)
const static char* _ustring[] =
{
"Language",
"RT-Thread Team.",
"RTT Win USB",
"32021919830108",
"Configuration",
"Interface",
USB_STRING_OS//must be
};
rt_align(4)
struct usb_os_proerty winusb_proerty[] =
{
USB_OS_PROPERTY_DESC(USB_OS_PROPERTY_TYPE_REG_SZ,"DeviceInterfaceGUID",RT_WINUSB_GUID),
};
rt_align(4)
struct usb_os_function_comp_id_descriptor winusb_func_comp_id_desc =
{
.bFirstInterfaceNumber = USB_DYNAMIC,
.reserved1 = 0x01,
.compatibleID = {'W', 'I', 'N', 'U', 'S', 'B', 0x00, 0x00},
.subCompatibleID = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
.reserved2 = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
};
static rt_err_t _ep_out_handler(ufunction_t func, rt_size_t size)
{
winusb_device_t winusb_device = (winusb_device_t)func->user_data;
if(winusb_device->parent.rx_indicate != RT_NULL)
{
winusb_device->parent.rx_indicate(&winusb_device->parent, size);
}
return RT_EOK;
}
static rt_err_t _ep_in_handler(ufunction_t func, rt_size_t size)
{
winusb_device_t winusb_device = (winusb_device_t)func->user_data;
if(winusb_device->parent.tx_complete != RT_NULL)
{
winusb_device->parent.tx_complete(&winusb_device->parent, winusb_device->ep_in->buffer);
}
return RT_EOK;
}
static ufunction_t cmd_func = RT_NULL;
static rt_err_t _ep0_cmd_handler(udevice_t device, rt_size_t size)
{
winusb_device_t winusb_device;
if(cmd_func != RT_NULL)
{
winusb_device = (winusb_device_t)cmd_func->user_data;
cmd_func = RT_NULL;
if(winusb_device->cmd_handler != RT_NULL)
{
winusb_device->cmd_handler(winusb_device->cmd_buff,size);
}
}
dcd_ep0_send_status(device->dcd);
return RT_EOK;
}
static rt_err_t _ep0_cmd_read(ufunction_t func, ureq_t setup)
{
winusb_device_t winusb_device = (winusb_device_t)func->user_data;
cmd_func = func;
rt_usbd_ep0_read(func->device,winusb_device->cmd_buff,setup->wLength,_ep0_cmd_handler);
return RT_EOK;
}
static rt_err_t _interface_handler(ufunction_t func, ureq_t setup)
{
switch(setup->bRequest)
{
case 'A':
switch(setup->wIndex)
{
case 0x05:
usbd_os_proerty_descriptor_send(func,setup,winusb_proerty,sizeof(winusb_proerty)/sizeof(winusb_proerty[0]));
break;
}
break;
case 0x0A://customer
_ep0_cmd_read(func, setup);
break;
}
return RT_EOK;
}
static rt_err_t _function_enable(ufunction_t func)
{
RT_ASSERT(func != RT_NULL);
return RT_EOK;
}
static rt_err_t _function_disable(ufunction_t func)
{
RT_ASSERT(func != RT_NULL);
return RT_EOK;
}
static struct ufunction_ops ops =
{
_function_enable,
_function_disable,
RT_NULL,
};
static rt_err_t _winusb_descriptor_config(winusb_desc_t winusb, rt_uint8_t cintf_nr, rt_uint8_t device_is_hs)
{
#ifdef RT_USB_DEVICE_COMPOSITE
winusb->iad_desc.bFirstInterface = cintf_nr;
#endif
winusb->ep_out_desc.wMaxPacketSize = device_is_hs ? 512 : 64;
winusb->ep_in_desc.wMaxPacketSize = device_is_hs ? 512 : 64;
winusb_func_comp_id_desc.bFirstInterfaceNumber = cintf_nr;
return RT_EOK;
}
static rt_size_t win_usb_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
{
if(((ufunction_t)dev->user_data)->device->state != USB_STATE_CONFIGURED)
{
return 0;
}
winusb_device_t winusb_device = (winusb_device_t)dev;
winusb_device->ep_out->buffer = buffer;
winusb_device->ep_out->request.buffer = buffer;
winusb_device->ep_out->request.size = size;
winusb_device->ep_out->request.req_type = UIO_REQUEST_READ_FULL;
rt_usbd_io_request(((ufunction_t)dev->user_data)->device,winusb_device->ep_out,&winusb_device->ep_out->request);
return size;
}
static rt_size_t win_usb_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
if(((ufunction_t)dev->user_data)->device->state != USB_STATE_CONFIGURED)
{
return 0;
}
winusb_device_t winusb_device = (winusb_device_t)dev;
winusb_device->ep_in->buffer = (void *)buffer;
winusb_device->ep_in->request.buffer = winusb_device->ep_in->buffer;
winusb_device->ep_in->request.size = size;
winusb_device->ep_in->request.req_type = UIO_REQUEST_WRITE;
rt_usbd_io_request(((ufunction_t)dev->user_data)->device,winusb_device->ep_in,&winusb_device->ep_in->request);
return size;
}
static rt_err_t win_usb_control(rt_device_t dev, int cmd, void *args)
{
winusb_device_t winusb_device = (winusb_device_t)dev;
if(RT_DEVICE_CTRL_CONFIG == cmd)
{
winusb_device->cmd_handler = (void(*)(rt_uint8_t*,rt_size_t))args;
}
return RT_EOK;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops winusb_device_ops =
{
RT_NULL,
RT_NULL,
RT_NULL,
win_usb_read,
win_usb_write,
win_usb_control,
};
#endif
static rt_err_t rt_usb_winusb_init(ufunction_t func)
{
winusb_device_t winusb_device = (winusb_device_t)func->user_data;
winusb_device->parent.type = RT_Device_Class_Miscellaneous;
#ifdef RT_USING_DEVICE_OPS
winusb_device->parent.ops = &winusb_device_ops;
#else
winusb_device->parent.init = RT_NULL;
winusb_device->parent.open = RT_NULL;
winusb_device->parent.close = RT_NULL;
winusb_device->parent.read = win_usb_read;
winusb_device->parent.write = win_usb_write;
winusb_device->parent.control = win_usb_control;
#endif
winusb_device->parent.user_data = func;
return rt_device_register(&winusb_device->parent, "winusb", RT_DEVICE_FLAG_RDWR);
}
ufunction_t rt_usbd_function_winusb_create(udevice_t device)
{
ufunction_t func;
winusb_device_t winusb_device;
uintf_t winusb_intf;
ualtsetting_t winusb_setting;
winusb_desc_t winusb_desc;
/* parameter check */
RT_ASSERT(device != RT_NULL);
/* set usb device string description */
#ifdef RT_USB_DEVICE_COMPOSITE
rt_usbd_device_set_interface_string(device, WINUSB_INTF_STR_INDEX, _ustring[2]);
#else
rt_usbd_device_set_string(device, _ustring);
#endif
/* create a cdc function */
func = rt_usbd_function_new(device, &dev_desc, &ops);
rt_usbd_device_set_qualifier(device, &dev_qualifier);
/* allocate memory for cdc vcom data */
winusb_device = (winusb_device_t)rt_malloc(sizeof(struct winusb_device));
rt_memset((void *)winusb_device, 0, sizeof(struct winusb_device));
func->user_data = (void*)winusb_device;
/* create an interface object */
winusb_intf = rt_usbd_interface_new(device, _interface_handler);
/* create an alternate setting object */
winusb_setting = rt_usbd_altsetting_new(sizeof(struct winusb_descriptor));
/* config desc in alternate setting */
rt_usbd_altsetting_config_descriptor(winusb_setting, &_winusb_desc, (rt_off_t)&((winusb_desc_t)0)->intf_desc);
/* configure the hid interface descriptor */
_winusb_descriptor_config(winusb_setting->desc, winusb_intf->intf_num, device->dcd->device_is_hs);
/* create endpoint */
winusb_desc = (winusb_desc_t)winusb_setting->desc;
winusb_device->ep_out = rt_usbd_endpoint_new(&winusb_desc->ep_out_desc, _ep_out_handler);
winusb_device->ep_in = rt_usbd_endpoint_new(&winusb_desc->ep_in_desc, _ep_in_handler);
/* add the int out and int in endpoint to the alternate setting */
rt_usbd_altsetting_add_endpoint(winusb_setting, winusb_device->ep_out);
rt_usbd_altsetting_add_endpoint(winusb_setting, winusb_device->ep_in);
/* add the alternate setting to the interface, then set default setting */
rt_usbd_interface_add_altsetting(winusb_intf, winusb_setting);
rt_usbd_set_altsetting(winusb_intf, 0);
/* add the interface to the mass storage function */
rt_usbd_function_add_interface(func, winusb_intf);
rt_usbd_os_comp_id_desc_add_os_func_comp_id_desc(device->os_comp_id_desc, &winusb_func_comp_id_desc);
/* initilize winusb */
rt_usb_winusb_init(func);
return func;
}
struct udclass winusb_class =
{
.rt_usbd_function_create = rt_usbd_function_winusb_create
};
int rt_usbd_winusb_class_register(void)
{
rt_usbd_class_register(&winusb_class);
return 0;
}
INIT_PREV_EXPORT(rt_usbd_winusb_class_register);
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