USB-HID 键盘描述符简介
USB-HID键盘设备描述符：
#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//0x007Cconst u8 DEVICEDESC_DUSB[18] = {DEVICE_DESCRIPTOR_SIZE, // bLength0x01, // bDescriptorType = DEVICE0x10,0x01, // bcdUSB(02.00 full-speed)0x00, // bDeviceClass0x00, // bDeviceSubClass0x00,//0x00 // bDeviceProtocolUSB_CTRL_TEST_SZIE, // bMaxPacketSize - 64bytes0x93,0x29, // idVendOR = 00790x02,0x60, // idProduct = 181C0x00,0x01, // bcdDevice = 01.000x02, // iManufacturer0x01, // iProduct0x00, // iSerialNumber0x01,
};USB-HID键盘配置和其他描述符：
const u8 HIDCONFIGDESC_DUSB[]={// Configuration Descriptor0x09, // 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, // iConfiguration0x80, // bmAttributes (bus powered)0xc8, // MaxPower (400mA)// Configuration Descriptor End// Interface 0// InterfaceDescriptor0x09, // bLength (9 bytes)0x04, // bDescriptorType (INTERFACE)0x00, // bInterfaceNumber (0)0x00, // bAlternateSetting (0)0x02,//0X01 // bNumEndpoints (2)0x03, // bInterfaceClass0x01, // bInterfaceSubClass ()0x01, // bInterfaceProtocol ()0x00, // iInterface (not supported)// InterfaceDescriptor end// class descriptor0x09, // bLength0x21, // bDescritptorType0x10,0x01, // bcdHID(01.11)0x00, // bCountryCode0x01, // bNumDescriptors0x22, // bDescriptorTypeBYTE0(HID_REPORT_DESCRIPTOR_SIZE_DUSB),// wItemLength (tot. len. of report descriptor )BYTE1(HID_REPORT_DESCRIPTOR_SIZE_DUSB),// Endpoint1Descriptor0x07, // 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 size0x0A,//0x0A, // 10ms// Endpoint1Descriptor end// Endpoint2Descriptor0x07, // bLength0x05, // bDescriptorType0x82, // 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：
const u8 HIDREPORTDESC_DUSB[] =
{0x05,0x01,// Global Generic Desktop0x09,0x06,// Local KeyBoard0xA1,0x01,// Main app collection0x05,0x07,// 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 Min0x25,0x01,// Global Logical Max0x95,0x08,// Global ReportCount0x75,0x01,// Global ReportSize0x81,0x02,// Main Input(Data,Var,Abs)//第2字节0x95,0x01,// Global ReportCount0x75,0x08,// Global ReportSize0x81,0x01,// Main Input(Cnst,Var,Abs)//第3-8字节0x95,0x03,// Global ReportCount0x75,0x01,// Global ReportSize0x05,0x08,// Global Logical Min0x19,0x01,0x29,0x03,// Local Usage Max0x91,0x02,// Main Output(Data,Ary,Abs)//1字节输出报告0x95,0x05,// Global Logical Min0x75,0x01,// Global Logical Max0x91,0x01,// Global ReportCount0x95,0x06,// Global ReportSize0x75,0x08,// Global LED0x15,0x00,// Local Usage Min0x26,0x0f,0x00,// Local Usage Max0x05,0x07,// Main Output(Data,Var,Abs)//补足上面变成1个字节0x19,0x00,// Global ReportCount0x2a,0xff,0x00,// Global ReportSize0x81,0x00,// 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
//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
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FIFOsfr[TXCSR1] = BIT(0); //Kick TxRdydelay_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