使用CH374模拟一个鼠标/键盘 EP2收不到数据

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这是可以用的配置描述符及报告描述符这个是鼠标键盘复合的设备：

//配置描述符如果有配置描述符长度改变，记得修改第2,3字节！！！！

const uint8_t MyCfgDescr[9 + 9 + 9 + 7 + 7] = { 0x09, 0x02, 0x29, 0x00, 0x01, 0x01, 0x00, 0x80, 0x32, /* 配置描述符 */

0x09, 0x04, 0x00, 0x00, 0x02, 0x03, 0x01, 0x01, 0x00, /* 接口描述符 */

0x09, 0x21, 0x10, 0x01, 0x21, 0x01, 0x22, 0x75, 0x00, /* HID描述符 */

0x07, 0x05, 0x82, 0x03, 0x10, 0x00, 0x04, /* 输入端点描述符使用ep2的in端点，因为ep1的in端点大小只有8字节 */

0x07, 0x05, 0x01, 0x03, 0x10, 0x00, 0x04}; /* 输出端点描述符使用ep1的out端点*/

//键盘报告描述符如果报告描述符长度改变，记得修改HID描述符里的下级描述符长度字段！！！！

uint8_t ReportDescr[] = {

0x05, 0x01,

0x09, 0x06,

0xa1, 0x01,

0x85, 0x01,

0x05, 0x07,

0x19, 0xe0,

0x29, 0xe7,

0x15, 0x00,

0x25, 0x01,

0x95, 0x08,

0x75, 0x01,

0x81, 0x02,

0x95, 0x01,

0x75, 0x08,

0x81, 0x03,

0x95, 0x06,

0x75, 0x08,

0x15, 0x00,

0x25, 0xff,

0x05, 0x07,

0x19, 0x00,

0x29, 0x65,

0x81, 0x00,

0x25, 0x01, //定义一个5位的数组，用于存储5个LED的状态。

0x95, 0x05,

0x75, 0x01,

0x05, 0x08,//使用LED页面。

0x19, 0x01,//LED的代码范围是0x01到0x05。

0x29, 0x05,

0x91, 0x02,//这个数组是输出报告的一部分

0x95, 0x01,//定义一个3位的常量，用于填充输出报告的剩余部分。

0x75, 0x03,

0x91, 0x03,

0xc0,

0x05, 0x01, // Usage Page (Generic Desktop Ctrls)

0x09, 0x02, // Usage (Mouse)

0xA1, 0x01, // Collection (Application)

0x85, 0x02, // Report ID (66)

0x09, 0x01, // Usage (Pointer)

0xA1, 0x00, // Collection (Physical)

0x05, 0x09, // Usage Page (Button)

0x19, 0x01, // Usage Minimum (0x01)

0x29, 0x08, // Usage Maximum (0x08)

0x15, 0x00, // Logical Minimum (0)

0x25, 0x01, // Logical Maximum (1)

0x95, 0x08, // Report Count (8)

0x75, 0x01, // Report Size (1)

0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)

0x05, 0x01, // Usage Page (Generic Desktop Ctrls)

0x16, 0x01, 0x80, // Logical Minimum (-32767)

0x26, 0xFF, 0x7F, // Logical Maximum (32767)

0x09, 0x30, // Usage (X)

0x09, 0x31, // Usage (Y)

0x09, 0x38, // Usage (Wheel)

0x75, 0x10, // Report Size (16)

0x95, 0x03, // Report Count (3)

0x81, 0x06, // Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)

0xC0, // End Collection

};

然后这个是自己改的只用端点二的单个鼠标设备的描述符然后问题就是改成这个之后端点二就收不到数据了

// 鼠标配置描述符如果有配置描述符长度改变，记得修改第2,3字节！！！！

const uint8_t MyCfgDescr[9 + 9 + 9 + 7] = { 0x09, 0x02, 0x22, 0x00, 0x01, 0x01, 0x00, 0x80, 0x32, /* 配置描述符 */

0x09, 0x04, 0x00, 0x00, 0x01, 0x03, 0x01, 0x02, 0x00, /* 接口描述符 */

0x09, 0x21, 0x10, 0x01, 0x21, 0x01, 0x22, 0x32, 0x00, /* HID描述符 */

0x07, 0x05, 0x82, 0x03, 0x10, 0x00, 0x04}; /* 输入端点描述符 */

//鼠标报告描述符如果报告描述符长度改变，记得修改HID描述符里的下级描述符长度字段！！！！

uint8_t ReportDescr[] = {

0x05, 0x01, // Usage Page (Generic Desktop Ctrls)

0x09, 0x02, // Usage (Mouse)

0xA1, 0x01, // Collection (Application)

#if 1

0x85, 0x02, // Report ID (66)

#endif

0x09, 0x01, // Usage (Pointer)

0xA1, 0x00, // Collection (Physical)

0x05, 0x09, // Usage Page (Button)

0x19, 0x01, // Usage Minimum (0x01)

0x29, 0x08, // Usage Maximum (0x08)

0x15, 0x00, // Logical Minimum (0)

0x25, 0x01, // Logical Maximum (1)

0x95, 0x08, // Report Count (8)

0x75, 0x01, // Report Size (1)

0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)

0x05, 0x01, // Usage Page (Generic Desktop Ctrls)

0x16, 0x01, 0x80, // Logical Minimum (-32767)

0x26, 0xFF, 0x7F, // Logical Maximum (32767)

0x09, 0x30, // Usage (X)

0x09, 0x31, // Usage (Y)

0x09, 0x38, // Usage (Wheel)

0x75, 0x10, // Report Size (16)

0x95, 0x03, // Report Count (3)

0x81, 0x06, // Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)

0xC0, // End Collection

};

热门产品 : CH397: 高集成度、低功耗USB网卡芯片

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然后这个是处理函数

void usb_device_task(void*parm)

{

uint8_t i;

uint8_t int_status, usb_status, usb_len;

static uint8_t SetupReq, SetupLen, device_addr;

static uint8_t* pDescr;

bool ep2_in_intr_flag = false;

while(1)

{

if(ch374_query_interrupt()){

int_status = ch374_read_byte(REG_INTER_FLAG); // 获取中断状态

usb_status = ch374_read_byte( REG_USB_STATUS );

usb_len = ch374_read_byte( REG_USB_LENGTH );

// printf("\n");

if ( int_status & BIT_IF_BUS_RESET ) { // USB总线复位

printf("usb bus reset\n");

ch374_write_byte( REG_USB_ADDR, 0x00 ); // 清USB设备地址

ch374_write_byte( REG_USB_ENDP0, M_SET_EP0_TRAN_NAK( 0 ) );

ch374_write_byte( REG_USB_ENDP1, M_SET_EP1_TRAN_NAK( 0 ) );

ch374_write_byte( REG_USB_ENDP2, M_SET_EP2_TRAN_NAK( 0 ) );

ch374_write_byte( REG_INTER_FLAG, BIT_IF_USB_PAUSE | BIT_IF_BUS_RESET ); // 清中断标志

}else if ( int_status & BIT_IF_TRANSFER ) { // USB传输完成

printf("usb translate complete\n");

usb_status = ch374_read_byte( REG_USB_STATUS );

switch( usb_status & BIT_STAT_PID_ENDP ) { // USB设备中断状态

case USB_INT_EP2_OUT: { // 批量端点下传成功

// printf("bulk ep download ok \n");

uint8_t buf[64];

if ( usb_status & BIT_STAT_TOG_MATCH ) { // 仅同步包

usb_len = ch374_read_byte( REG_USB_LENGTH );

ch374_read_bytes( RAM_ENDP2_RECV, buf, usb_len);

for ( i = 0; i < usb_len; i ++ ){

buf[i] ^= 0xFF; // 数据取反由计算机验证

}

ch374_write_bytes( RAM_ENDP2_TRAN, buf, usb_len); // 演示回传

ch374_write_byte( REG_USB_LENGTH, usb_len );

ch374_write_byte( REG_USB_ENDP2, M_SET_EP2_TRAN_ACK( ch374_read_byte( REG_USB_ENDP2 ) ) ^ BIT_EP2_RECV_TOG );

}

break;

}

case USB_INT_EP2_IN: { // 批量端点上传成功,未处理

ch374_write_byte( REG_USB_ENDP2, M_SET_EP2_TRAN_NAK( ch374_read_byte( REG_USB_ENDP2 ) ) ^ BIT_EP2_TRAN_TOG );

printf("interrupt ep up ok\n");

ep2_in_intr_flag = true;

break;

}

case USB_INT_EP1_IN: { // 中断端点上传成功,未处理

// printf("interrupt ep up ok\n");

ch374_write_byte( REG_USB_ENDP1, M_SET_EP1_TRAN_NAK( ch374_read_byte( REG_USB_ENDP1 ) ) ^ BIT_EP1_TRAN_TOG );

break;

}

case USB_INT_EP0_SETUP: { // 控制传输

USB_SETUP_REQ SetupReqBuf;

usb_len = ch374_read_byte( REG_USB_LENGTH );

// printf("control translate usb_len = %d\n", usb_len);

int i;

if ( usb_len == sizeof( USB_SETUP_REQ ) ) {

ch374_read_bytes( RAM_ENDP0_RECV, (uint8_t *)&SetupReqBuf, usb_len);

for(i = 0;i < usb_len;i++){

printf("0x%02x ", *((uint8_t *)&SetupReqBuf + i));

}

printf("\n");

SetupLen = SetupReqBuf.wLengthL;

if ( SetupReqBuf.wLengthH || SetupLen > 0x7F ) {

SetupLen = 0x7F; // 限制总长度

}

usb_len = 0; // 默认为成功并且上传0长度

if ( ( SetupReqBuf.bType & DEF_USB_REQ_TYPE ) != DEF_USB_REQ_STAND ) { /* 只支持标准请求 */

usb_len = 0xFF; // 操作失败

}

else { // 标准请求

printf("standard request:");

SetupReq = SetupReqBuf.bReq; // 请求码

switch( SetupReq ) {

case DEF_USB_GET_DESCR:

switch( SetupReqBuf.wValueH ) {

case 1:

printf("get device desc\n");

pDescr = (uint8_t *)( &MyDevDescr[0] );

usb_len = sizeof( MyDevDescr );

break;

case 2:

printf("get config desc\n");

pDescr = (uint8_t *)( &MyCfgDescr[0] );

usb_len = sizeof( MyCfgDescr );

break;

case 3:

switch( SetupReqBuf.wValueL ) {

printf("get string desc, value = %d\n",SetupReqBuf.wValueL);

case 1:

pDescr = (uint8_t *)( &MyManuInfo[0] );

usb_len = sizeof( MyManuInfo );

break;

case 2:

pDescr = (uint8_t *)( &MyProdInfo[0] );

usb_len = sizeof( MyProdInfo );

break;

case 0:

pDescr = (uint8_t *)( &MyLangDescr[0] );

usb_len = sizeof( MyLangDescr );

break;

default:

usb_len = 0xFF; // 操作失败

break;

}

break;

case USB_REPORT_DESCR_TYPE:

printf("get report desc\n");

pDescr = (uint8_t *)( &ReportDescr[0] );

usb_len = sizeof( ReportDescr );

is_fake_km_ready = true;

xTaskCreate(mouse_task,"test_task",4096,NULL,12,NULL);

break;

default:

printf("get desc: defautl\n");

usb_len = 0xFF; // 操作失败

break;

}

if ( SetupLen > usb_len ) SetupLen = usb_len; // 限制总长度

usb_len = SetupLen >= RAM_ENDP0_SIZE ? RAM_ENDP0_SIZE : SetupLen; // 本次传输长度

ch374_write_bytes(RAM_ENDP0_TRAN,pDescr,usb_len); /* 加载上传数据 */

SetupLen -= usb_len;

pDescr += usb_len;

break;

case DEF_USB_SET_ADDRESS:

printf("set addr\n");

device_addr = SetupReqBuf.wValueL; // 暂存USB设备地址

break;

case DEF_USB_GET_CONFIG:

printf("get config\n");

ch374_write_byte(RAM_ENDP0_TRAN,UsbConfig);

if ( SetupLen >= 1 ) usb_len = 1;

break;

case DEF_USB_SET_CONFIG:

printf("set config\n");

UsbConfig = SetupReqBuf.wValueL;

break;

case DEF_USB_CLR_FEATURE:

printf("clear feature\n");

if ( ( SetupReqBuf.bType & 0x1F ) == 0x02 ) { // 不是端点不支持

switch( SetupReqBuf.wIndexL ) {

case 0x82:

ch374_write_byte(REG_USB_ENDP2,M_SET_EP2_TRAN_NAK(ch374_read_byte(REG_USB_ENDP2)));

break;

case 0x02:

ch374_write_byte(REG_USB_ENDP2,M_SET_EP2_RECV_ACK(ch374_read_byte(REG_USB_ENDP2)));

break;

case 0x81:

ch374_write_byte(REG_USB_ENDP1,M_SET_EP1_TRAN_NAK(ch374_read_byte(REG_USB_ENDP1)));

break;

case 0x01:

ch374_write_byte(REG_USB_ENDP1,M_SET_EP1_RECV_ACK(ch374_read_byte(REG_USB_ENDP1)));

break;

default:

usb_len = 0xFF; // 操作失败

break;

}

else usb_len = 0xFF; // 操作失败

break;

case DEF_USB_GET_INTERF:

printf("get interf\n");

ch374_write_byte(RAM_ENDP0_TRAN,0);

if ( SetupLen >= 1 ) usb_len = 1;

break;

case DEF_USB_GET_STATUS:

printf("get status\n");

ch374_write_byte(RAM_ENDP0_TRAN,0);

ch374_write_byte(RAM_ENDP0_TRAN+1,0);

if ( SetupLen >= 2 ) usb_len = 2;

else usb_len = SetupLen;

break;

default:

printf("default!!!\n");

usb_len = 0xFF; // 操作失败

break;

}

else {

usb_len = 0xFF; // 操作失败

}

if ( usb_len == 0xFF ) { // 操作失败

ch374_write_byte( REG_USB_ENDP0, M_SET_EP0_RECV_STA( M_SET_EP0_TRAN_STA( 0 ) ) ); // STALL

}

else if ( usb_len <= RAM_ENDP0_SIZE ) { // 上传数据

ch374_write_byte( REG_USB_ENDP0, M_SET_EP0_TRAN_ACK( M_SET_EP0_RECV_ACK( ch374_read_byte( REG_USB_ENDP0 ) ), usb_len ) | BIT_EP0_TRAN_TOG ); // DATA1

}

else { // 下传数据或其它

ch374_write_byte( REG_USB_ENDP0, M_SET_EP0_TRAN_NAK( M_SET_EP0_RECV_ACK( ch374_read_byte( REG_USB_ENDP0 ) ) ) | BIT_EP0_RECV_TOG ); // DATA1

}

break;

}

case USB_INT_EP0_IN: {

printf("USB_INT_EP0_IN\n");

//uint8_t len;

switch( SetupReq ) {

case DEF_USB_GET_DESCR:

usb_len = SetupLen >= RAM_ENDP0_SIZE ? RAM_ENDP0_SIZE : SetupLen; // 本次传输长度

ch374_write_bytes(RAM_ENDP0_TRAN,pDescr,usb_len); /* 加载上传数据 */

SetupLen -= usb_len;

pDescr += usb_len;

ch374_write_byte(REG_USB_ENDP0,M_SET_EP0_TRAN_ACK(ch374_read_byte(REG_USB_ENDP0),usb_len)^BIT_EP0_TRAN_TOG);

break;

case DEF_USB_SET_ADDRESS:

ch374_write_byte(REG_USB_ADDR,device_addr);

default:

ch374_write_byte(REG_USB_ENDP0,M_SET_EP0_TRAN_NAK(0)); // 结束

break;

}

break;

}

case USB_INT_EP0_OUT: {

printf("USB_INT_EP0_OUT\n");

switch( SetupReq ) {

// case download:

// get_data;

// break;

case DEF_USB_GET_DESCR:

default:

ch374_write_byte(REG_USB_ENDP0,M_SET_EP0_TRAN_NAK(0)); // 结束

break;

}

break;

}

// case

default:

printf("CAPS default\n");

break;

}

ch374_write_byte( REG_INTER_FLAG, BIT_IF_USB_PAUSE | BIT_IF_TRANSFER ); // 清中断标志

if(ep2_in_intr_flag == true) {

ep2_in_intr_flag = false;

xEventGroupSetBits(Event_Handle, EP2_IN_EVENT);

}

}else if ( int_status & BIT_IF_USB_SUSPEND ) { // USB总线挂起

printf("usb bus suspend\n");

ch374_write_byte( REG_INTER_FLAG, BIT_IF_USB_PAUSE | BIT_IF_USB_SUSPEND ); // 清中断标志

ch374_write_byte( REG_SYS_CTRL, ch374_read_byte( REG_SYS_CTRL ) | BIT_CTRL_OSCIL_OFF ); // 时钟振荡器停止振荡,进入睡眠状态

}else if ( int_status & BIT_IF_WAKE_UP ) { // 芯片唤醒完成

printf("wake up\n");

ch374_write_byte( REG_INTER_FLAG, BIT_IF_USB_PAUSE | BIT_IF_WAKE_UP ); // 清中断标志

}else { // 意外的中断,不可能发生的情况,除了硬件损坏

printf("hardware error\n");

ch374_write_byte( REG_INTER_FLAG, BIT_IF_USB_PAUSE | BIT_IF_INTER_FLAG ); // 清中断标志

}

//vTaskDelay(20 / portTICK_PERIOD_MS); //关闭了watch dog

}

vTaskDelete(NULL);

}

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