本帖最后由 u012801 于 2013-12-21 08:33 编辑
#define RegBase (0x40005C00L) /* USB_IP Peripheral Registers base address */
#define PMAAddr (0x40006000L) /* USB_IP Packet Memory Area base address */
#define BTABLE ((volatile unsigned *)(RegBase + 0x50))
#define _GetBTABLE() ((u16) *BTABLE)
#define _pEPRxAddr(bEpNum) ((u32 *)((_GetBTABLE()+bEpNum*8+4)*2 + PMAAddr))
#define _GetEPRxAddr(bEpNum) ((u16)*_pEPRxAddr(bEpNum))
u8 Setup0_Process(void)
{
union
{
u8* b;
u16* w;
} pBuf;
pBuf.b = PMAAddr + (u8 *)(_GetEPRxAddr(ENDP0) * 2); /* *2 for 32 bits addr */
if (pInformation->ControlState != PAUSE)
{
pInformation->USBbmRequestType = *pBuf.b++; /* bmRequestType */
pInformation->USBbRequest = *pBuf.b++; /* bRequest */
pBuf.w++; /* word not accessed because of 32 bits addressing */
pInformation->USBwValue = ByteSwap(*pBuf.w++); /* wValue */
pBuf.w++; /* word not accessed because of 32 bits addressing */
pInformation->USBwIndex = ByteSwap(*pBuf.w++); /* wIndex */
pBuf.w++; /* word not accessed because of 32 bits addressing */
pInformation->USBwLength = *pBuf.w; /* wLength */
}
pInformation->ControlState = SETTING_UP;
if (pInformation->USBwLength == 0)
{
/* Setup with no data stage */
NoData_Setup0();
}
else
{
/* Setup with data stage */
Data_Setup0();
}
return Post0_Process();
} |
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