?? chap_9.c
字號:
switch(USB_Device_Request.wValue)
{
case 1://設備描述符
//選擇描述符
if(Kernel_Flag.BITS.HS_FS_State == FULL_SPEED)
Descriptor_Ptr = &Standard_Device_Descriptor[0]; //set pointer to device descriptor
if(Kernel_Flag.BITS.HS_FS_State == HIGH_SPEED)
Descriptor_Ptr = &HS_Device_Descriptor[0]; //set pointer to device descriptor
count = *Descriptor_Ptr; //read in descriptor length
//選擇端點號
D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
//寫下發送字節數
D14_Cntrl_Reg.D14_BUFFER_LENGTH_LSB = 0x12;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_MSB = 0;
//send descriptor
//發送描述符
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
wait_ep0tx();
ep0out_ack();
break;
case 2 : //獲取配置描述符
USB_Int_Flag.BITS.EP0RX = 0;
Temp = 64;
Descriptor_Ptr = &Standard_Config_Descriptor[0]; //set pointer to configuration descriptor
count = *Descriptor_Ptr; //get configuration Descriptor length
//選擇端點號1
D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
//check if only configuration descriptor required
//檢查描述符長度,決定是只發送配置描述符還是描述符集合
if(count >= USB_Device_Request.wLength) //Send only Configuration descriptor
{
//寫入發送字節數
D14_Cntrl_Reg.D14_BUFFER_LENGTH_LSB = (UC) USB_Device_Request.wLength;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_MSB = (UC) (USB_Device_Request.wLength >> 8);
//send descriptor
//發送描述符
for(count = 0 ; count < USB_Device_Request.wLength ; count++)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
Descriptor_Ptr++;
}
wait_ep0tx();
ep0out_ack();
}
else //send Configuration,Interface and Endpoint descriptor
{
//發送描述符集合(配置+接口+端點)
if(USB_Device_Request.wLength >= 32)
{
//寫入配置描述符
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
//選擇高速還是全速接口描述符
if(Kernel_Flag.BITS.HS_FS_State == FULL_SPEED)
Descriptor_Ptr = &Bulk_Interface_Descriptor[0]; //set pointer to interface descriptor
if(Kernel_Flag.BITS.HS_FS_State == HIGH_SPEED)
Descriptor_Ptr = &HS_Bulk_Interface_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //get the descriptor count
//寫入接口描述符
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
//選擇高速還是全速端點1IN描述符
if(Kernel_Flag.BITS.HS_FS_State == FULL_SPEED)
Descriptor_Ptr = &Int_In_Descriptor[0]; //set pointer to interface descriptor
if(Kernel_Flag.BITS.HS_FS_State == HIGH_SPEED)
Descriptor_Ptr = &HS_Int_In_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //read in descriptor length
//寫入端點1IN描述符
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
//選擇高速還是全速端點1OUT描述符
if(Kernel_Flag.BITS.HS_FS_State == FULL_SPEED)
Descriptor_Ptr = &Int_Out_Descriptor[0]; //set pointer to interface descriptor
if(Kernel_Flag.BITS.HS_FS_State == HIGH_SPEED)
Descriptor_Ptr = &HS_Int_Out_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //read in descriptor length
//寫入端點1OUT描述符
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
//選擇高速還是全速端點2IN描述符
if(Kernel_Flag.BITS.HS_FS_State == FULL_SPEED)
Descriptor_Ptr = &Bulk_In_Descriptor[0]; //set pointer to interface descriptor
if(Kernel_Flag.BITS.HS_FS_State == HIGH_SPEED)
Descriptor_Ptr = &HS_Bulk_In_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //read in descriptor length
//寫入端點2IN描述符
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
//選擇高速還是全速端點2OUT描述符
if(Kernel_Flag.BITS.HS_FS_State == FULL_SPEED)
Descriptor_Ptr = &Bulk_Out_Descriptor[0]; //set pointer to interface descriptor
if(Kernel_Flag.BITS.HS_FS_State == HIGH_SPEED)
Descriptor_Ptr = &HS_Bulk_Out_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //read in descriptor length
//寫入端點2OUT描述符
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
}
//使端點有效
D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.VENDP = 1; //validate FIFO
wait_ep0tx();
ep0out_ack();
}
break;
case 3: //獲取字符串描述符
Descriptor_Ptr = &Standard_String_ID[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //get length
D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
if(USB_Device_Request.wLength < count)
count = USB_Device_Request.wLength; //get the remaining length
D14_Cntrl_Reg.D14_BUFFER_LENGTH_LSB = count;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_MSB = 0;
//send string ID
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr; //fill up FIFO
Descriptor_Ptr++;
count--;
}
wait_ep0tx();
ep0out_ack();
break;
case 4:
reserved();
break;
case 5: //獲取端點描述符
Temp = 0;
if((USB_Device_Request.wValue & 0x00ff) > 0x0001)
{
D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.STALL = 1;
while(!USB_Int_Flag.BITS.EP0SETUP)
{
//讀取ISP1581中斷寄存器
USB_Int_Flag.VALUE |= D14_Cntrl_Reg.D14_INT.VALUE;
//回寫ISP1581中斷寄存器
D14_Cntrl_Reg.D14_INT.VALUE = USB_Int_Flag.VALUE;
if(USB_Int_Flag.BITS.SUSP || USB_Int_Flag.BITS.RESET)
return;
}
USB_Int_Flag.BITS.EP0TX = 0;
}
else
{
Descriptor_Ptr = &Bulk_Out_Descriptor[0]; //set pointer to Bulk Out endpoint descriptor
count = *Descriptor_Ptr; //read in descriptor length
D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
if(count >= USB_Device_Request.wLength)
{
Temp = USB_Device_Request.wLength;
//send endpoint descriptor
D14_Cntrl_Reg.D14_BUFFER_LENGTH_LSB = (UC) Temp;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_MSB = (UC) (Temp >> 8);
for(count = 0 ; count < USB_Device_Request.wLength ; count++)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
Descriptor_Ptr++;
}
wait_ep0tx();
ep0out_ack();
}
else
{
USB_Device_Request.wLength -= count; //send Endpoint descriptor
Temp += count;
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
Descriptor_Ptr = &Bulk_In_Descriptor[0]; //set pointer to Bulk In endpoint descriptor
count = *Descriptor_Ptr; //read in descriptor length
if(count >= USB_Device_Request.wLength)
{
Temp += USB_Device_Request.wLength;
//send endpoint descriptor
D14_Cntrl_Reg.D14_BUFFER_LENGTH_LSB = (UC) Temp;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_MSB = (UC) (Temp >> 8);
for(count = 0 ; count < USB_Device_Request.wLength ; count++)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
Descriptor_Ptr++;
}
wait_ep0tx();
ep0out_ack();
}
else
{
USB_Device_Request.wLength -= count; //send Endpoint descriptor
Temp += count;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_LSB = (UC) Temp;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_MSB = (UC) (Temp >> 8);
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
wait_ep0tx();
ep0out_ack();
}
}
}
break;
case 6: //獲取設備限制描述符
Descriptor_Ptr = &HS_Device_Qualifier[0]; //set pointer to High Speed device descriptor
count = *Descriptor_Ptr; //read in descriptor length
D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
if(USB_Device_Request.wLength < count)
{
D14_Cntrl_Reg.D14_BUFFER_LENGTH_LSB = (UC) USB_Device_Request.wLength;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_MSB = 0;
count = USB_Device_Request.wLength;
}
else
{
D14_Cntrl_Reg.D14_BUFFER_LENGTH_LSB = count;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_MSB = 0;
}
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr; //fill up FIFO
Descriptor_Ptr++;
count--;
};
wait_ep0tx();
ep0out_ack();
break;
case 7 ://獲取速度配置描述符
Temp = 64;
Descriptor_Ptr = &Other_Speed_Config_Descriptor[0]; //set pointer to configuration descriptor
count = *Descriptor_Ptr; //get configuration Descriptor length
D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
if(count >= USB_Device_Request.wLength) //Send only Configuration descriptor
{
D14_Cntrl_Reg.D14_BUFFER_LENGTH_LSB = (UC) USB_Device_Request.wLength;
D14_Cntrl_Reg.D14_BUFFER_LENGTH_MSB = (UC) (USB_Device_Request.wLength >> 8);
for(count = 0 ; count < USB_Device_Request.wLength ; count++)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
Descriptor_Ptr++;
}
wait_ep0tx();
ep0out_ack();
}
else //send Configuration,Interface and Endpoint descriptor
{
if(USB_Device_Request.wLength >= 32)
{
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
Descriptor_Ptr = &Bulk_Interface_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //get the descriptor count
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
Descriptor_Ptr = &Int_In_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //read in descriptor length
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
Descriptor_Ptr = &Int_Out_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //read in descriptor length
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
Descriptor_Ptr = &Bulk_In_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //read in descriptor length
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
Descriptor_Ptr = &Bulk_Out_Descriptor[0]; //set pointer to interface descriptor
count = *Descriptor_Ptr; //read in descriptor length
while(count != 0)
{
D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
count--;
Descriptor_Ptr++;
}
}
D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.VENDP = 1; //validate FIFO
wait_ep0tx();
ep0out_ack();
}
break;
case 8:
break;
default :
D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.STALL = 1;
while(!USB_Int_Flag.BITS.EP0SETUP)
{
//讀取ISP1581中斷寄存器
USB_Int_Flag.VALUE |= D14_Cntrl_Reg.D14_INT.VALUE;
//回寫ISP1581中斷寄存器
D14_Cntrl_Reg.D14_INT.VALUE = USB_Int_Flag.VALUE;
if(USB_Int_Flag.BITS.SUSP || USB_Int_Flag.BITS.RESET)
return;
}
USB_Int_Flag.BITS.EP0TX = 0;
break;
}
}
//Set_Address設置地址
void set_address(void)
{
USB_Int_Flag.BITS.EP0RX = 0;
D14_Cntrl_Reg.D14_ADDRESS.BITS.DEVADDR = (USB_Device_Request.wValue >> 8);//設置地址
//狀態響應
ep0in_ack();
}
//Set_Config設置配置
void set_config(void)
{
USB_Int_Flag.BITS.EP0RX = 0;
if(USB_Device_Request.wValue == 0)
{
Device_Config_Value = 0;
ep0in_ack();
}
else if (USB_Device_Request.wValue == 0x0100)
{
//配置設備
Device_Config_Value = (UC) (USB_Device_Request.wValue >> 8);
// USB_Device.BITS.State = USB_Configured;
ep0in_ack();
}
else
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