USB-HID 键盘描述符简介
USB-HID键盘设备描述符：
c
#define DEVICE_DESCRIPTOR_SIZE 0x12
#define USB_CTRL_TEST_SZIE 8
#define CONFIG_DESCRIPTOR_SIZE_DUSB 0x0029 //0x0022//0x0029
#define HID_REPORT_DESCRIPTOR_SIZE_DUSB 0x0041 //0x0041//0x007C
const u8 DEVICEDESC_DUSB[18] = {
DEVICE_DESCRIPTOR_SIZE, // bLength
0x01, // bDescriptorType = DEVICE
0x10,0x01, // bcdUSB(02.00 full-speed)
0x00, // bDeviceClass
0x00, // bDeviceSubClass
0x00,//0x00 // bDeviceProtocol
USB_CTRL_TEST_SZIE, // bMaxPacketSize - 64bytes
0x93,0x29, // idVendOR = 0079
0x02,0x60, // idProduct = 181C
0x00,0x01, // bcdDevice = 01.00
0x02, // iManufacturer
0x01, // iProduct
0x00, // iSerialNumber
0x01,
};USB-HID键盘配置和其他描述符：
c
const u8 HIDCONFIGDESC_DUSB[]={
// Configuration Descriptor
0x09, // length of descriptor (9 bytes)
0x02, // descriptor type (CONFIGURATION)
BYTE0(CONFIG_DESCRIPTOR_SIZE_DUSB),// Total length bytes (9 + 9 + 9 + 7 + 7)
BYTE1(CONFIG_DESCRIPTOR_SIZE_DUSB),
0x01, // bNumInterfaces (1)
0x01, // bConfigurationValue (1)
0x00, // iConfiguration
0x80, // bmAttributes (bus powered)
0xc8, // MaxPower (400mA)
// Configuration Descriptor End
// Interface 0
// InterfaceDescriptor
0x09, // bLength (9 bytes)
0x04, // bDescriptorType (INTERFACE)
0x00, // bInterfaceNumber (0)
0x00, // bAlternateSetting (0)
0x02,//0X01 // bNumEndpoints (2)
0x03, // bInterfaceClass
0x01, // bInterfaceSubClass ()
0x01, // bInterfaceProtocol ()
0x00, // iInterface (not supported)
// InterfaceDescriptor end
// class descriptor
0x09, // bLength
0x21, // bDescritptorType
0x10,0x01, // bcdHID(01.11)
0x00, // bCountryCode
0x01, // bNumDescriptors
0x22, // bDescriptorType
BYTE0(HID_REPORT_DESCRIPTOR_SIZE_DUSB),// wItemLength (tot. len. of report descriptor )
BYTE1(HID_REPORT_DESCRIPTOR_SIZE_DUSB),
// Endpoint1Descriptor
0x07, // descriptor length (7 bytes)
0x05, // descriptor type (ENDPOINT)
0x81, // endpoint address (IN endpoint, endpoint 1)
0x03, // endpoint attributes (interrupt)
USB_CTRL_TEST_SZIE,0x00, //EP1_PACKET_SIZE_LE, // maximum packet size
0x0A,//0x0A, // 10ms
// Endpoint1Descriptor end
// Endpoint2Descriptor
0x07, // bLength
0x05, // bDescriptorType
0x82, // bEndpointAddress (ep1, OUT)
0x03, // bmAttributes (INT)
USB_CTRL_TEST_SZIE,0x00, //EP2_PACKET_SIZE_LE, // wMaxPacketSize (lsb first)
0x0A, // bInterval - 10ms
// Endpoint2Descriptor End
}USB-HID键盘报告描述符：
c
const u8 HIDREPORTDESC_DUSB[] =
{
0x05,0x01,// Global Generic Desktop
0x09,0x06,// Local KeyBoard
0xA1,0x01,// Main app collection
0x05,0x07,// Global KeyBoard
//第1字节
0x19,0xe0,// Local Usage Min (KeyBoard LeftControl)
0x29,0xe7,// Local Usage Max (KeyBoard Right GUI)
0x15,0x00,// Global Logical Min
0x25,0x01,// Global Logical Max
0x95,0x08,// Global ReportCount
0x75,0x01,// Global ReportSize
0x81,0x02,// Main Input(Data,Var,Abs)
//第2字节
0x95,0x01,// Global ReportCount
0x75,0x08,// Global ReportSize
0x81,0x01,// Main Input(Cnst,Var,Abs)
//第3-8字节
0x95,0x03,// Global ReportCount
0x75,0x01,// Global ReportSize
0x05,0x08,// Global Logical Min
0x19,0x01,
0x29,0x03,// Local Usage Max
0x91,0x02,// Main Output(Data,Ary,Abs)
//1字节输出报告
0x95,0x05,// Global Logical Min
0x75,0x01,// Global Logical Max
0x91,0x01,// Global ReportCount
0x95,0x06,// Global ReportSize
0x75,0x08,// Global LED
0x15,0x00,// Local Usage Min
0x26,0x0f,0x00,// Local Usage Max
0x05,0x07,// Main Output(Data,Var,Abs)
//补足上面变成1个字节
0x19,0x00,// Global ReportCount
0x2a,0xff,0x00,// Global ReportSize
0x81,0x00,// Main Output(Cnst,Var,Abs)
0xc0 // Main End collection
}在设置地址的时候，也需要将数据长度改了
c
//Set Address
AT(.usbdev.com)
static bool do_set_address(ude_t *ude)
{
// printf("%s\n", __func__);
spb_wrap_t *spb = &ude->spb;
if(Read_USB_Mode==USB_Xbox_Mode)
{
ude->ep.epsize = USB_CTRL_SIZE; //默认为8，收到SetAddress后，将MAXEPSIZE改为64。
}
else
{
ude->ep.epsize = USB_CTRL_TEST_SZIE;//这个是键盘的
}
if (ude->cfgval) {
return false; //已经进行配置，不支持设置地址
}
ude->devaddr = BYTE0(spb->val);
ude->set_faddr = 1;
return true;
}在发送数据的时候，同时需要将len改成8
c
void ude_hid_tx_process(void)
{
//USB - HID 发送数据
u8 len=9;
epcb_t *epcb=udp_1.int_in;
if(bXUsbIntInput_sync==1)
{
if(USB_SendData_Cnt<200) USB_SendData_Cnt++;
if(Read_USB_Mode==USB_Switch_Mode)
{
len=64;
memcpy(epcb->buf, &PS3InBuffer[1], len);
}
else
{
len = 8;//USB_CTRL_TEST_SZIE
//printf("ude_hid_tx_process.. send:%d\r\n",len);
memcpy(epcb->buf, Send_USB_DataBuf, len);
}
epcb->xptr=epcb->buf;
epcb->xlen = len;
epcb->xcnt = 0;
epcb->first_pkt=1;
}
psfr_t sfr = epcb->sfr;
usb_set_cur_ep(epcb);
if (0 == (sfr[TXCSR1] & BIT(0))) //TX OK
{
if (epcb->first_pkt == 0 && epcb->xlen == 0)
{
// if(Read_USB_Mode==USB_Switch_Mode)
Send_Switch_ct=5;
bXUsbIntInput_sync=0;
work_cheak_ct=0;
return; //ok
}
epcb->first_pkt = 0;
len = (epcb->xlen >= epcb->epsize) ? epcb->epsize : epcb->xlen;
USB_ENTER_CRITICAL();
USBEP1TXADR=DMA_ADR(epcb->xptr);
USBCON2 = BIT(16+1) | len; //设置FIFO
sfr[TXCSR1] = BIT(0); //Kick TxRdy
delay_us(2); //等待TxRdy同步
USB_EXIT_CRITICAL();
epcb->xptr += len;
epcb->xlen -= len;
epcb->xcnt += len;
}
bXUsbIntInput_sync=2;
}最后根据键盘键值发送数据即可