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

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/*
* File : hid.c
* COPYRIGHT (C) 2006 - 2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2017-03-13 Urey the first version
* 2017-11-16 ZYH Update to common hid
*/
#include <rthw.h>
#include <rtdevice.h>
#include "drivers/usb_common.h"
#include "drivers/usb_device.h"
#include "hid.h"
#ifdef RT_USB_DEVICE_HID
#define HID_INTF_STR_INDEX 7
struct hid_s
{
struct rt_device parent;
struct ufunction *func;
uep_t ep_in;
uep_t ep_out;
int status;
rt_uint8_t protocol;
rt_uint8_t report_buf[MAX_REPORT_SIZE];
struct rt_messagequeue hid_mq;
};
/* CustomHID_ConfigDescriptor */
rt_align(4)
const rt_uint8_t _report_desc[]=
{
#ifdef RT_USB_DEVICE_HID_KEYBOARD
USAGE_PAGE(1), 0x01,
USAGE(1), 0x06,
COLLECTION(1), 0x01,
REPORT_ID(1), HID_REPORT_ID_KEYBOARD1,
USAGE_PAGE(1), 0x07,
USAGE_MINIMUM(1), 0xE0,
USAGE_MAXIMUM(1), 0xE7,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x01,
REPORT_SIZE(1), 0x01,
REPORT_COUNT(1), 0x08,
INPUT(1), 0x02,
REPORT_COUNT(1), 0x01,
REPORT_SIZE(1), 0x08,
INPUT(1), 0x01,
REPORT_COUNT(1), 0x05,
REPORT_SIZE(1), 0x01,
USAGE_PAGE(1), 0x08,
USAGE_MINIMUM(1), 0x01,
USAGE_MAXIMUM(1), 0x05,
OUTPUT(1), 0x02,
REPORT_COUNT(1), 0x01,
REPORT_SIZE(1), 0x03,
OUTPUT(1), 0x01,
REPORT_COUNT(1), 0x06,
REPORT_SIZE(1), 0x08,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x65,
USAGE_PAGE(1), 0x07,
USAGE_MINIMUM(1), 0x00,
USAGE_MAXIMUM(1), 0x65,
INPUT(1), 0x00,
END_COLLECTION(0),
#if RT_USB_DEVICE_HID_KEYBOARD_NUMBER>1
/****keyboard2*****/
USAGE_PAGE(1), 0x01,
USAGE(1), 0x06,
COLLECTION(1), 0x01,
REPORT_ID(1), HID_REPORT_ID_KEYBOARD2,
USAGE_PAGE(1), 0x07,
USAGE_MINIMUM(1), 0xE0,
USAGE_MAXIMUM(1), 0xE7,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x01,
REPORT_SIZE(1), 0x01,
REPORT_COUNT(1), 0x08,
INPUT(1), 0x02,
REPORT_COUNT(1), 0x01,
REPORT_SIZE(1), 0x08,
INPUT(1), 0x01,
REPORT_COUNT(1), 0x06,
REPORT_SIZE(1), 0x08,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x65,
USAGE_PAGE(1), 0x07,
USAGE_MINIMUM(1), 0x00,
USAGE_MAXIMUM(1), 0x65,
INPUT(1), 0x00,
END_COLLECTION(0),
#if RT_USB_DEVICE_HID_KEYBOARD_NUMBER>2
USAGE_PAGE(1), 0x01,
USAGE(1), 0x06,
COLLECTION(1), 0x01,
REPORT_ID(1), HID_REPORT_ID_KEYBOARD3,
USAGE_PAGE(1), 0x07,
USAGE_MINIMUM(1), 0xE0,
USAGE_MAXIMUM(1), 0xE7,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x01,
REPORT_SIZE(1), 0x01,
REPORT_COUNT(1), 0x08,
INPUT(1), 0x02,
REPORT_COUNT(1), 0x01,
REPORT_SIZE(1), 0x08,
INPUT(1), 0x01,
REPORT_COUNT(1), 0x06,
REPORT_SIZE(1), 0x08,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x65,
USAGE_PAGE(1), 0x07,
USAGE_MINIMUM(1), 0x00,
USAGE_MAXIMUM(1), 0x65,
INPUT(1), 0x00,
END_COLLECTION(0),
#if RT_USB_DEVICE_HID_KEYBOARD_NUMBER>3
USAGE_PAGE(1), 0x01,
USAGE(1), 0x06,
COLLECTION(1), 0x01,
REPORT_ID(1), HID_REPORT_ID_KEYBOARD4,
USAGE_PAGE(1), 0x07,
USAGE_MINIMUM(1), 0xE0,
USAGE_MAXIMUM(1), 0xE7,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x01,
REPORT_SIZE(1), 0x01,
REPORT_COUNT(1), 0x08,
INPUT(1), 0x02,
REPORT_COUNT(1), 0x01,
REPORT_SIZE(1), 0x08,
INPUT(1), 0x01,
REPORT_COUNT(1), 0x06,
REPORT_SIZE(1), 0x08,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x65,
USAGE_PAGE(1), 0x07,
USAGE_MINIMUM(1), 0x00,
USAGE_MAXIMUM(1), 0x65,
INPUT(1), 0x00,
END_COLLECTION(0),
#endif
#endif
#endif
#endif
// Media Control
#ifdef RT_USB_DEVICE_HID_MEDIA
USAGE_PAGE(1), 0x0C,
USAGE(1), 0x01,
COLLECTION(1), 0x01,
REPORT_ID(1), HID_REPORT_ID_MEDIA,
USAGE_PAGE(1), 0x0C,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x01,
REPORT_SIZE(1), 0x01,
REPORT_COUNT(1), 0x07,
USAGE(1), 0xB5, // Next Track
USAGE(1), 0xB6, // Previous Track
USAGE(1), 0xB7, // Stop
USAGE(1), 0xCD, // Play / Pause
USAGE(1), 0xE2, // Mute
USAGE(1), 0xE9, // Volume Up
USAGE(1), 0xEA, // Volume Down
INPUT(1), 0x02, // Input (Data, Variable, Absolute)
REPORT_COUNT(1), 0x01,
INPUT(1), 0x01,
END_COLLECTION(0),
#endif
#ifdef RT_USB_DEVICE_HID_GENERAL
USAGE_PAGE(1), 0x8c,
USAGE(1), 0x01,
COLLECTION(1), 0x01,
REPORT_ID(1), HID_REPORT_ID_GENERAL,
REPORT_COUNT(1), RT_USB_DEVICE_HID_GENERAL_IN_REPORT_LENGTH,
USAGE(1), 0x03,
REPORT_SIZE(1), 0x08,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0xFF,
INPUT(1), 0x02,
REPORT_COUNT(1), RT_USB_DEVICE_HID_GENERAL_OUT_REPORT_LENGTH,
USAGE(1), 0x04,
REPORT_SIZE(1), 0x08,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0xFF,
OUTPUT(1), 0x02,
END_COLLECTION(0),
#endif
#ifdef RT_USB_DEVICE_HID_MOUSE
USAGE_PAGE(1), 0x01, // Generic Desktop
USAGE(1), 0x02, // Mouse
COLLECTION(1), 0x01, // Application
USAGE(1), 0x01, // Pointer
COLLECTION(1), 0x00, // Physical
REPORT_ID(1), HID_REPORT_ID_MOUSE,
REPORT_COUNT(1), 0x03,
REPORT_SIZE(1), 0x01,
USAGE_PAGE(1), 0x09, // Buttons
USAGE_MINIMUM(1), 0x1,
USAGE_MAXIMUM(1), 0x3,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x01,
INPUT(1), 0x02,
REPORT_COUNT(1), 0x01,
REPORT_SIZE(1), 0x05,
INPUT(1), 0x01,
REPORT_COUNT(1), 0x03,
REPORT_SIZE(1), 0x08,
USAGE_PAGE(1), 0x01,
USAGE(1), 0x30, // X
USAGE(1), 0x31, // Y
USAGE(1), 0x38, // scroll
LOGICAL_MINIMUM(1), 0x81,
LOGICAL_MAXIMUM(1), 0x7f,
INPUT(1), 0x06,
END_COLLECTION(0),
END_COLLECTION(0),
#endif
}; /* CustomHID_ReportDescriptor */
rt_align(4)
static struct udevice_descriptor _dev_desc =
{
USB_DESC_LENGTH_DEVICE, //bLength;
USB_DESC_TYPE_DEVICE, //type;
USB_BCD_VERSION, //bcdUSB;
0x0, //bDeviceClass;
0x00, //bDeviceSubClass;
0x00, //bDeviceProtocol;
64, //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
0x0, //bDeviceClass
0x0, //bDeviceSubClass
0x50, //bDeviceProtocol
64, //bMaxPacketSize0
0x01, //bNumConfigurations
0,
};
/* hid interface descriptor */
rt_align(4)
const static struct uhid_comm_descriptor _hid_comm_desc =
{
#ifdef RT_USB_DEVICE_COMPOSITE
/* Interface Association Descriptor */
{
USB_DESC_LENGTH_IAD,
USB_DESC_TYPE_IAD,
USB_DYNAMIC,
0x01,
0x03, /* bInterfaceClass: HID */
#if defined(RT_USB_DEVICE_HID_KEYBOARD)||defined(RT_USB_DEVICE_HID_MOUSE)
USB_HID_SUBCLASS_BOOT, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
#else
USB_HID_SUBCLASS_NOBOOT, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
#endif
#if !defined(RT_USB_DEVICE_HID_KEYBOARD)||!defined(RT_USB_DEVICE_HID_MOUSE)||!defined(RT_USB_DEVICE_HID_MEDIA)
USB_HID_PROTOCOL_NONE, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
#elif !defined(RT_USB_DEVICE_HID_MOUSE)
USB_HID_PROTOCOL_KEYBOARD, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
#else
USB_HID_PROTOCOL_MOUSE, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
#endif
0x00,
},
#endif
/* Interface Descriptor */
{
USB_DESC_LENGTH_INTERFACE,
USB_DESC_TYPE_INTERFACE,
USB_DYNAMIC, /* bInterfaceNumber: Number of Interface */
0x00, /* bAlternateSetting: Alternate setting */
0x02, /* bNumEndpoints */
0x03, /* bInterfaceClass: HID */
#if defined(RT_USB_DEVICE_HID_KEYBOARD)||defined(RT_USB_DEVICE_HID_MOUSE)
USB_HID_SUBCLASS_BOOT, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
#else
USB_HID_SUBCLASS_NOBOOT, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
#endif
#if !defined(RT_USB_DEVICE_HID_KEYBOARD)||!defined(RT_USB_DEVICE_HID_MOUSE)||!defined(RT_USB_DEVICE_HID_MEDIA)
USB_HID_PROTOCOL_NONE, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
#elif !defined(RT_USB_DEVICE_HID_MOUSE)
USB_HID_PROTOCOL_KEYBOARD, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
#else
USB_HID_PROTOCOL_MOUSE, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
#endif
#ifdef RT_USB_DEVICE_COMPOSITE
HID_INTF_STR_INDEX, /* iInterface: Index of string descriptor */
#else
0,
#endif
},
/* HID Descriptor */
{
HID_DESCRIPTOR_SIZE, /* bLength: HID Descriptor size */
HID_DESCRIPTOR_TYPE, /* bDescriptorType: HID */
0x0110, /* bcdHID: HID Class Spec release number */
0x00, /* bCountryCode: Hardware target country */
0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
{
{
0x22, /* bDescriptorType */
sizeof(_report_desc), /* wItemLength: Total length of Report descriptor */
},
},
},
/* Endpoint Descriptor IN */
{
USB_DESC_LENGTH_ENDPOINT,
USB_DESC_TYPE_ENDPOINT,
USB_DYNAMIC | USB_DIR_IN,
USB_EP_ATTR_INT,
0x40,
0x0A,
},
/* Endpoint Descriptor OUT */
{
USB_DESC_LENGTH_ENDPOINT,
USB_DESC_TYPE_ENDPOINT,
USB_DYNAMIC | USB_DIR_OUT,
USB_EP_ATTR_INT,
0x40,
0x01,
},
};
rt_align(4)
const static char* _ustring[] =
{
"Language",
"RT-Thread Team.",
"RTT HID-Device",
"32021919830108",
"Configuration",
"Interface",
};
static void dump_data(rt_uint8_t *data, rt_size_t size)
{
rt_size_t i;
for (i = 0; i < size; i++)
{
rt_kprintf("%02x ", *data++);
if ((i + 1) % 8 == 0)
{
rt_kprintf("\n");
}else if ((i + 1) % 4 == 0){
rt_kprintf(" ");
}
}
}
static void dump_report(struct hid_report * report)
{
rt_kprintf("\nHID Recived:");
rt_kprintf("\nReport ID %02x \n", report->report_id);
dump_data(report->report,report->size);
}
static rt_err_t _ep_out_handler(ufunction_t func, rt_size_t size)
{
struct hid_s *data;
struct hid_report report;
RT_ASSERT(func != RT_NULL);
RT_ASSERT(func->device != RT_NULL);
data = (struct hid_s *) func->user_data;
if(size != 0)
{
rt_memcpy((void *)&report,(void*)data->ep_out->buffer,size);
report.size = size-1;
rt_mq_send(&data->hid_mq,(void *)&report,sizeof(report));
}
data->ep_out->request.buffer = data->ep_out->buffer;
data->ep_out->request.size = EP_MAXPACKET(data->ep_out);
data->ep_out->request.req_type = UIO_REQUEST_READ_BEST;
rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);
return RT_EOK;
}
static rt_err_t _ep_in_handler(ufunction_t func, rt_size_t size)
{
struct hid_s *data;
RT_ASSERT(func != RT_NULL);
RT_ASSERT(func->device != RT_NULL);
data = (struct hid_s *) func->user_data;
if(data->parent.tx_complete != RT_NULL)
{
data->parent.tx_complete(&data->parent,RT_NULL);
}
return RT_EOK;
}
static rt_err_t _hid_set_report_callback(udevice_t device, rt_size_t size)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("_hid_set_report_callback\n"));
if(size != 0)
{
}
dcd_ep0_send_status(device->dcd);
return RT_EOK;
}
/**
* This function will handle hid interface bRequest.
*
* @param device the usb device object.
* @param setup the setup bRequest.
*
* @return RT_EOK on successful.
*/
static rt_err_t _interface_handler(ufunction_t func, ureq_t setup)
{
RT_ASSERT(func != RT_NULL);
RT_ASSERT(func->device != RT_NULL);
RT_ASSERT(setup != RT_NULL);
struct hid_s *data = (struct hid_s *) func->user_data;
switch (setup->bRequest)
{
case USB_REQ_GET_DESCRIPTOR:
if((setup->wValue >> 8) == USB_DESC_TYPE_REPORT)
{
rt_usbd_ep0_write(func->device, (void *)(&_report_desc[0]), sizeof(_report_desc));
}
else if((setup->wValue >> 8) == USB_DESC_TYPE_HID)
{
rt_usbd_ep0_write(func->device, (void *)(&_hid_comm_desc.hid_desc), sizeof(struct uhid_descriptor));
}
break;
case USB_HID_REQ_GET_REPORT:
if(setup->wLength == 0)
{
rt_usbd_ep0_set_stall(func->device);
break;
}
if((setup->wLength == 0) || (setup->wLength > MAX_REPORT_SIZE))
setup->wLength = MAX_REPORT_SIZE;
rt_usbd_ep0_write(func->device, data->report_buf,setup->wLength);
break;
case USB_HID_REQ_GET_IDLE:
dcd_ep0_send_status(func->device->dcd);
break;
case USB_HID_REQ_GET_PROTOCOL:
rt_usbd_ep0_write(func->device, &data->protocol,1);
break;
case USB_HID_REQ_SET_REPORT:
if((setup->wLength == 0) || (setup->wLength > MAX_REPORT_SIZE))
rt_usbd_ep0_set_stall(func->device);
rt_usbd_ep0_read(func->device, data->report_buf, setup->wLength, _hid_set_report_callback);
break;
case USB_HID_REQ_SET_IDLE:
dcd_ep0_send_status(func->device->dcd);
break;
case USB_HID_REQ_SET_PROTOCOL:
data->protocol = setup->wValue;
dcd_ep0_send_status(func->device->dcd);
break;
}
return RT_EOK;
}
/**
* This function will run cdc function, it will be called on handle set configuration bRequest.
*
* @param func the usb function object.
*
* @return RT_EOK on successful.
*/
static rt_err_t _function_enable(ufunction_t func)
{
struct hid_s *data;
RT_ASSERT(func != RT_NULL);
RT_ASSERT(func->device != RT_NULL);
data = (struct hid_s *) func->user_data;
RT_DEBUG_LOG(RT_DEBUG_USB, ("hid function enable\n"));
//
// _vcom_reset_state(func);
//
if(data->ep_out->buffer == RT_NULL)
{
data->ep_out->buffer = rt_malloc(HID_RX_BUFSIZE);
}
data->ep_out->request.buffer = data->ep_out->buffer;
data->ep_out->request.size = EP_MAXPACKET(data->ep_out);
data->ep_out->request.req_type = UIO_REQUEST_READ_BEST;
rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);
return RT_EOK;
}
/**
* This function will stop cdc function, it will be called on handle set configuration bRequest.
*
* @param func the usb function object.
*
* @return RT_EOK on successful.
*/
static rt_err_t _function_disable(ufunction_t func)
{
struct hid_s *data;
RT_ASSERT(func != RT_NULL);
RT_ASSERT(func->device != RT_NULL);
data = (struct hid_s *) func->user_data;
RT_DEBUG_LOG(RT_DEBUG_USB, ("hid function disable\n"));
if(data->ep_out->buffer != RT_NULL)
{
rt_free(data->ep_out->buffer);
data->ep_out->buffer = RT_NULL;
}
return RT_EOK;
}
static struct ufunction_ops ops =
{
_function_enable,
_function_disable,
RT_NULL,
};
/**
* This function will configure hid descriptor.
*
* @param comm the communication interface number.
* @param data the data interface number.
*
* @return RT_EOK on successful.
*/
static rt_err_t _hid_descriptor_config(uhid_comm_desc_t hid, rt_uint8_t cintf_nr)
{
#ifdef RT_USB_DEVICE_COMPOSITE
hid->iad_desc.bFirstInterface = cintf_nr;
#endif
return RT_EOK;
}
static rt_size_t _hid_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
struct hid_s *hiddev = (struct hid_s *)dev;
struct hid_report report;
if (hiddev->func->device->state == USB_STATE_CONFIGURED)
{
report.report_id = pos;
rt_memcpy((void *)report.report,(void *)buffer,size);
report.size = size;
hiddev->ep_in->request.buffer = (void *)&report;
hiddev->ep_in->request.size = (size+1) > 64 ? 64 : size+1;
hiddev->ep_in->request.req_type = UIO_REQUEST_WRITE;
rt_usbd_io_request(hiddev->func->device, hiddev->ep_in, &hiddev->ep_in->request);
return size;
}
return 0;
}
rt_weak void HID_Report_Received(hid_report_t report)
{
dump_report(report);
}
rt_align(RT_ALIGN_SIZE)
static rt_uint8_t hid_thread_stack[512];
static struct rt_thread hid_thread;
static void hid_thread_entry(void* parameter)
{
struct hid_report report;
struct hid_s *hiddev;
hiddev = (struct hid_s *)parameter;
while(1)
{
if(rt_mq_recv(&hiddev->hid_mq, &report, sizeof(report),RT_WAITING_FOREVER) != RT_EOK )
continue;
HID_Report_Received(&report);
}
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops hid_device_ops =
{
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
_hid_write,
RT_NULL,
};
#endif
static rt_uint8_t hid_mq_pool[(sizeof(struct hid_report)+sizeof(void*))*8];
static void rt_usb_hid_init(struct ufunction *func)
{
struct hid_s *hiddev;
hiddev = (struct hid_s *)func->user_data;
rt_memset(&hiddev->parent, 0, sizeof(hiddev->parent));
#ifdef RT_USING_DEVICE_OPS
hiddev->parent.ops = &hid_device_ops;
#else
hiddev->parent.write = _hid_write;
#endif
hiddev->func = func;
rt_device_register(&hiddev->parent, "hidd", RT_DEVICE_FLAG_RDWR);
rt_mq_init(&hiddev->hid_mq, "hiddmq", hid_mq_pool, sizeof(struct hid_report),
sizeof(hid_mq_pool), RT_IPC_FLAG_FIFO);
rt_thread_init(&hid_thread, "hidd", hid_thread_entry, hiddev,
hid_thread_stack, sizeof(hid_thread_stack), RT_USBD_THREAD_PRIO, 20);
rt_thread_startup(&hid_thread);
}
/**
* This function will create a hid function instance.
*
* @param device the usb device object.
*
* @return RT_EOK on successful.
*/
ufunction_t rt_usbd_function_hid_create(udevice_t device)
{
ufunction_t func;
struct hid_s *data;
uintf_t hid_intf;
ualtsetting_t hid_setting;
uhid_comm_desc_t hid_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, HID_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);
/* For high speed mode supporting */
rt_usbd_device_set_qualifier(device, &dev_qualifier);
/* allocate memory for cdc vcom data */
data = (struct hid_s*)rt_malloc(sizeof(struct hid_s));
rt_memset(data, 0, sizeof(struct hid_s));
func->user_data = (void*)data;
/* create an interface object */
hid_intf = rt_usbd_interface_new(device, _interface_handler);
/* create an alternate setting object */
hid_setting = rt_usbd_altsetting_new(sizeof(struct uhid_comm_descriptor));
/* config desc in alternate setting */
rt_usbd_altsetting_config_descriptor(hid_setting, &_hid_comm_desc, (rt_off_t)&((uhid_comm_desc_t)0)->intf_desc);
/* configure the hid interface descriptor */
_hid_descriptor_config(hid_setting->desc, hid_intf->intf_num);
/* create endpoint */
hid_desc = (uhid_comm_desc_t)hid_setting->desc;
data->ep_out = rt_usbd_endpoint_new(&hid_desc->ep_out_desc, _ep_out_handler);
data->ep_in = rt_usbd_endpoint_new(&hid_desc->ep_in_desc, _ep_in_handler);
/* add the int out and int in endpoint to the alternate setting */
rt_usbd_altsetting_add_endpoint(hid_setting, data->ep_out);
rt_usbd_altsetting_add_endpoint(hid_setting, data->ep_in);
/* add the alternate setting to the interface, then set default setting */
rt_usbd_interface_add_altsetting(hid_intf, hid_setting);
rt_usbd_set_altsetting(hid_intf, 0);
/* add the interface to the mass storage function */
rt_usbd_function_add_interface(func, hid_intf);
/* initilize hid */
rt_usb_hid_init(func);
return func;
}
struct udclass hid_class =
{
.rt_usbd_function_create = rt_usbd_function_hid_create
};
int rt_usbd_hid_class_register(void)
{
rt_usbd_class_register(&hid_class);
return 0;
}
INIT_PREV_EXPORT(rt_usbd_hid_class_register);
#endif /* RT_USB_DEVICE_HID */
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