?? chap9.c
字號(hào):
//============================================================================//
// 文件名: usbmain.c
// 描 述： usb1.1協(xié)議的標(biāo)準(zhǔn)請(qǐng)求處理
// 日 期： 2003/04/03
//=============================================================================//
#include "D12CI.H"
#include "chap9.h"
#define NUM_ENDPOINTS 4
#define CONFIG_DESCRIPTOR_LENGTH (unsigned long int)(sizeof(USB_CONFIGURATION_DESCRIPTOR)+ sizeof(USB_INTERFACE_DESCRIPTOR)+(NUM_ENDPOINTS * sizeof(USB_ENDPOINT_DESCRIPTOR)))
void F_Get_Status(void);
void F_Clear_Feature(void);
void F_Set_Feature(void);
void F_Set_Address(void);
void F_Get_Descriptor(void);
void F_Get_Configuration(void);
void F_Set_Configuration(void);
void F_Get_Interface(void);
void F_Set_Interface(void);
void F_Reserved(void);
void F_Single_Transmit(unsigned int * buf, unsigned int len);
void F_Code_Transmit(unsigned int * pRomData, unsigned long int len);
void F_Stall_Ep0(void);
void F_Control_Handler(void);
void F_Init_Unconfig(void);
void F_Init_Config(void);
void F_Ep0_RxDone_Detail(void);
void F_Ep0_TxDone_Detail(void);
extern unsigned int ep_last;//defined in ExternInt.c
CONTROL_TRANSFERS ControlData;
EPPFLAGS bEPPflags;
//設(shè)備描述符號(hào)
USB_DEVICE_DESCRIPTOR DeviceDescr =
{
sizeof(USB_DEVICE_DESCRIPTOR),
USB_DEVICE_DESCRIPTOR_TYPE,
0x00010000,
USB_CLASS_CODE_TEST_CLASS_DEVICE,
0,
0,
EP0_PACKET_SIZE,
0x00040071,
0x00060066,
0x00010000,
0, //Manufactory
0, //Product
0, //Serial Number
25 //Number of possible configurations
};
//配置描述符
USB_CONFIGURATION_DESCRIPTOR ConfigDescr =
{
sizeof(USB_CONFIGURATION_DESCRIPTOR),
USB_CONFIGURATION_DESCRIPTOR_TYPE,
CONFIG_DESCRIPTOR_LENGTH,
1,
1,
0,
0x60,
0xf0
};
//接口描述符
USB_INTERFACE_DESCRIPTOR InterfaceDescr =
{
sizeof(USB_INTERFACE_DESCRIPTOR),
USB_INTERFACE_DESCRIPTOR_TYPE,
0,
0,
NUM_ENDPOINTS,
USB_CLASS_CODE_TEST_CLASS_DEVICE,
USB_SUBCLASS_CODE_TEST_CLASS_D12,
USB_PROTOCOL_CODE_TEST_CLASS_D12,
0
};
//端點(diǎn)1輸入描述符
USB_ENDPOINT_DESCRIPTOR EP1_TXDescr =
{
sizeof(USB_ENDPOINT_DESCRIPTOR),
USB_ENDPOINT_DESCRIPTOR_TYPE,
0x81,
USB_ENDPOINT_TYPE_INTERRUPT,
EP1_PACKET_SIZE,
10
};
//端點(diǎn)1輸出描述符
USB_ENDPOINT_DESCRIPTOR EP1_RXDescr =
{
sizeof(USB_ENDPOINT_DESCRIPTOR),
USB_ENDPOINT_DESCRIPTOR_TYPE,
0x1,
USB_ENDPOINT_TYPE_INTERRUPT,
EP1_PACKET_SIZE,
10
};
//端點(diǎn)2輸入描述符
USB_ENDPOINT_DESCRIPTOR EP2_TXDescr =
{
sizeof(USB_ENDPOINT_DESCRIPTOR),
USB_ENDPOINT_DESCRIPTOR_TYPE,
0x82,
USB_ENDPOINT_TYPE_BULK,
EP2_PACKET_SIZE,
10
};
//端點(diǎn)2輸出描述符
USB_ENDPOINT_DESCRIPTOR EP2_RXDescr =
{
sizeof(USB_ENDPOINT_DESCRIPTOR),
USB_ENDPOINT_DESCRIPTOR_TYPE,
0x2,
USB_ENDPOINT_TYPE_BULK,
EP2_PACKET_SIZE,
10
};
//*************************************************************************
// USB protocol function pointer arrays
//*************************************************************************
void (*StandardDeviceRequest[])(void) =
{
F_Get_Status,
F_Clear_Feature,
F_Reserved,
F_Set_Feature,
F_Reserved,
F_Set_Address,
F_Get_Descriptor,
F_Reserved,
F_Get_Configuration,
F_Set_Configuration,
F_Get_Interface,
F_Set_Interface,
F_Reserved,
F_Reserved,
F_Reserved,
F_Reserved
};
void F_Reserved(void)
{
F_Stall_Ep0();
}
//*************************************************************************
// USB standard device requests
//*************************************************************************
void F_Get_Status(void)
{
unsigned int endp, txdat[2];
unsigned int bRecipient = ControlData.DeviceRequest.bmRequestType & USB_RECIPIENT;
unsigned int c;
if(bRecipient == USB_RECIPIENT_DEVICE)
{
if(bEPPflags.bits.remote_wakeup == 1)
txdat[0] = 3;
else
txdat[0] = 1;
txdat[1]=0;
F_Single_Transmit(txdat, 2);
}
else if(bRecipient == USB_RECIPIENT_INTERFACE)
{
txdat[0]=0;
txdat[1]=0;
F_Single_Transmit(txdat, 2);
}
else if(bRecipient == USB_RECIPIENT_ENDPOINT)
{
endp = (unsigned int)(ControlData.DeviceRequest.wIndex & MAX_ENDPOINTS);
if(ControlData.DeviceRequest.wIndex & (unsigned int)USB_ENDPOINT_DIRECTION_MASK)
c =F_D12_SelectEndpoint(endp*2 + 1); /* Control-in */
else
c = F_D12_SelectEndpoint(endp*2); /* Control-out */
if(c & D12_STALL)
txdat[0] = 1;
else
txdat[0] = 0;
txdat[1] = 0;
F_Single_Transmit(txdat, 2);
}
else
F_Stall_Ep0();
}
void F_Clear_Feature(void)
{
unsigned int endp;
unsigned int bRecipient = ControlData.DeviceRequest.bmRequestType & USB_RECIPIENT;
if(bRecipient == USB_RECIPIENT_DEVICE&& ControlData.DeviceRequest.wValue == USB_FEATURE_REMOTE_WAKEUP)
{
bEPPflags.bits.remote_wakeup = 0;
F_Single_Transmit(0, 0);
}
else if(bRecipient == USB_RECIPIENT_ENDPOINT && ControlData.DeviceRequest.wValue == USB_FEATURE_ENDPOINT_STALL)
{
endp = (unsigned int)(ControlData.DeviceRequest.wIndex & MAX_ENDPOINTS);
if(ControlData.DeviceRequest.wIndex & (unsigned int)USB_ENDPOINT_DIRECTION_MASK)
F_D12_SetEndpointStatus(endp*2 + 1, 0);// clear TX stall for IN on EPn.
else
F_D12_SetEndpointStatus(endp*2, 0);// clear RX stall for OUT on EPn.
F_Single_Transmit(0, 0);
}
else
F_Stall_Ep0();
}
void F_Set_Feature(void)
{
unsigned int endp;
unsigned int bRecipient = ControlData.DeviceRequest.bmRequestType & USB_RECIPIENT;
if (bRecipient == USB_RECIPIENT_DEVICE && ControlData.DeviceRequest.wValue == USB_FEATURE_REMOTE_WAKEUP)
{
bEPPflags.bits.remote_wakeup = 1;
F_Single_Transmit(0, 0);
}
else if (bRecipient == USB_RECIPIENT_ENDPOINT && ControlData.DeviceRequest.wValue == USB_FEATURE_ENDPOINT_STALL)
{
endp = (unsigned int)(ControlData.DeviceRequest.wIndex & MAX_ENDPOINTS);
if (ControlData.DeviceRequest.wIndex & (unsigned int)USB_ENDPOINT_DIRECTION_MASK)
F_D12_SetEndpointStatus(endp*2 + 1, 1);
else
F_D12_SetEndpointStatus(endp*2, 1);
F_Single_Transmit(0, 0);
}
else
F_Stall_Ep0();
}
void F_Set_Address(void)
{
F_D12_SetAddressEnable((unsigned int)(ControlData.DeviceRequest.wValue & DEVICE_ADDRESS_MASK), 1);
F_Single_Transmit(0, 0);
}
void F_Get_Descriptor(void)
{
unsigned int bDescriptor = MSB(ControlData.DeviceRequest.wValue);
if (bDescriptor == USB_DEVICE_DESCRIPTOR_TYPE) //0x01
{
F_Code_Transmit((unsigned int *)&DeviceDescr, sizeof(USB_DEVICE_DESCRIPTOR));
}
else if (bDescriptor == USB_CONFIGURATION_DESCRIPTOR_TYPE)
{
F_Code_Transmit((unsigned int *)&ConfigDescr, CONFIG_DESCRIPTOR_LENGTH);
}
else
F_Stall_Ep0();
}
void F_Get_Configuration(void)
{
unsigned int c = bEPPflags.bits.configuration;
F_Single_Transmit(&c, 1);
}
void F_Set_Configuration(void)
{
if (ControlData.DeviceRequest.wValue == 0)
{
//* put device in unconfigured state
F_Single_Transmit(0, 0);
bEPPflags.bits.configuration = 0;
F_Init_Unconfig();
}
else if (ControlData.DeviceRequest.wValue == 1)
{
// Configure device
F_Single_Transmit(0, 0);
F_Init_Unconfig();
F_Init_Config();
bEPPflags.bits.configuration = 1;
}
else
F_Stall_Ep0();
}
void F_Get_Interface(void)
{
unsigned int txdat = 0; // Only/Current interface = 0
F_Single_Transmit(&txdat, 1);
}
void F_Set_Interface(void)
{
if (ControlData.DeviceRequest.wValue == 0 && ControlData.DeviceRequest.wIndex == 0)
F_Single_Transmit(0, 0);
else
F_Stall_Ep0();
}
//--------------------------------------------------------------------//
//--------------------------for standard request handle --------------//
//--------------------------------------------------------------------//
void F_Stall_Ep0(void)
{
F_D12_SetEndpointStatus(0, 1);//
F_D12_SetEndpointStatus(1, 1);//
}
void F_Single_Transmit(unsigned int * buf, unsigned int len)
{
if( len <= EP0_PACKET_SIZE)
{
F_D12_WriteEndpoint(1, len, buf);
}
}
void F_Code_Transmit(unsigned int * pRomData, unsigned long int len)
{
ControlData.wCount = 0;
if(ControlData.wLength > len)
ControlData.wLength = len;
ControlData.pData = pRomData;
if( ControlData.wLength >= EP0_PACKET_SIZE)
{
F_D12_WriteEndpoint(1, EP0_PACKET_SIZE, ControlData.pData);
ControlData.wCount += EP0_PACKET_SIZE;
bEPPflags.bits.control_state = USB_TRANSMIT;
}
else
{
F_D12_WriteEndpoint(1, ControlData.wLength, pRomData);
ControlData.wCount += ControlData.wLength;
bEPPflags.bits.control_state = USB_IDLE;
}
}
//------------------------------
void F_Control_Handler()
{
unsigned int type, req;
type = ControlData.DeviceRequest.bmRequestType & USB_REQUEST_TYPE_MASK;
req = ControlData.DeviceRequest.bRequest & USB_REQUEST_MASK;
if (type == USB_STANDARD_REQUEST)
{
(*StandardDeviceRequest[req])();
}
else
F_Stall_Ep0();
}
//-----------------------------------
void F_Init_Unconfig(void)
{
F_D12_SetEndpointEnable(0); /* Disable all endpoints but EPP0. */
}
void F_Init_Config(void)
{
F_D12_SetEndpointEnable(1); /* Enable generic/iso endpoints. */
}
//main Ep rxdone
void F_Ep0_RxDone_Detail(void)
{
unsigned int i;
unsigned int I_uiBuffer_Data_Length=0;
if (ep_last & D12_SETUPPACKET)
{
ControlData.wLength = 0;
ControlData.wCount = 0;
//判斷端點(diǎn)是否滿,如是,則取出
I_uiBuffer_Data_Length=F_D12_ReadEndpoint(0, sizeof(ControlData.DeviceRequest),(unsigned int *)(&(ControlData.DeviceRequest)));
if(I_uiBuffer_Data_Length!= sizeof(DEVICE_REQUEST))
{
F_D12_SetEndpointStatus(0, 1);
F_D12_SetEndpointStatus(1, 1);
bEPPflags.bits.control_state = USB_IDLE;
return;
}
// Acknowledge setup here to unlock in/out endp
// 向控制輸出端點(diǎn)發(fā)送應(yīng)答建立命令以重新使能下一個(gè)建立階段
F_D12_AcknowledgeEndpoint(0);
F_D12_AcknowledgeEndpoint(1);
ControlData.wLength = ControlData.DeviceRequest.wLength;
ControlData.wCount = 0;
if (ControlData.DeviceRequest.bmRequestType & (unsigned int)USB_ENDPOINT_DIRECTION_MASK)
{
bEPPflags.bits.setup_packet = 1;
bEPPflags.bits.control_state = USB_IDLE; /* get command */
}
else
{
if (ControlData.DeviceRequest.wLength == 0)
{
bEPPflags.bits.setup_packet = 1;
bEPPflags.bits.control_state = USB_IDLE; /* set command */
}
else
{
if(ControlData.DeviceRequest.wLength > MAX_CONTROLDATA_SIZE)
{
bEPPflags.bits.control_state = USB_IDLE;
F_D12_SetEndpointStatus(0, 1);
F_D12_SetEndpointStatus(1, 1);
}
else
{
bEPPflags.bits.control_state = USB_RECEIVE; /* set command with OUT token */
}
} // set command with data
} // else set command
} // if setup packet
else if (bEPPflags.bits.control_state == USB_RECEIVE)
{
i = F_D12_ReadEndpoint(0, EP0_PACKET_SIZE,
ControlData.dataBuffer + ControlData.wCount);
ControlData.wCount += i;
if( i != EP0_PACKET_SIZE || ControlData.wCount >= ControlData.wLength)
{
bEPPflags.bits.setup_packet = 1;
bEPPflags.bits.control_state = USB_IDLE;
}
}
else
{
bEPPflags.bits.control_state = USB_IDLE;
}
}
void F_Ep0_TxDone_Detail(void)
{
unsigned long int i = ControlData.wLength - ControlData.wCount;
if (bEPPflags.bits.control_state != USB_TRANSMIT)
return;
if( i >= EP0_PACKET_SIZE)
{
F_D12_WriteEndpoint(1, EP0_PACKET_SIZE, ControlData.pData + ControlData.wCount);
ControlData.wCount += EP0_PACKET_SIZE;
bEPPflags.bits.control_state = USB_TRANSMIT;
}
else if( i != 0)
{
F_D12_WriteEndpoint(1, i, ControlData.pData + ControlData.wCount);
ControlData.wCount += i;
bEPPflags.bits.control_state = USB_IDLE;
}
else if (i == 0)
{
F_D12_WriteEndpoint(1, 0, 0); // Send zero packet at the end
bEPPflags.bits.control_state = USB_IDLE;
}
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