xemac_l.h

uboot在arm处理器s3c2410的移植代码

#define XEM_EIR_RECV_LFIFO_OVER_MASK   0x00000080UL	/* Recv length fifo
							 * overrun */
#define XEM_EIR_RECV_LFIFO_UNDER_MASK  0x00000100UL	/* Recv length fifo
							 * underrun */
#define XEM_EIR_XMIT_SFIFO_OVER_MASK   0x00000200UL	/* Xmit status fifo
							 * overrun */
#define XEM_EIR_XMIT_SFIFO_UNDER_MASK  0x00000400UL	/* Transmit status fifo
							 * underrun */
#define XEM_EIR_XMIT_LFIFO_OVER_MASK   0x00000800UL	/* Transmit length fifo
							 * overrun */
#define XEM_EIR_XMIT_LFIFO_UNDER_MASK  0x00001000UL	/* Transmit length fifo
							 * underrun */
#define XEM_EIR_XMIT_PAUSE_MASK	       0x00002000UL	/* Transmit pause pkt
							 * received */
#define XEM_EIR_RECV_DFIFO_OVER_MASK   0x00004000UL	/* Receive data fifo
							 * overrun */
#define XEM_EIR_RECV_MISSED_FRAME_MASK 0x00008000UL	/* Receive missed frame
							 * error */
#define XEM_EIR_RECV_COLLISION_MASK    0x00010000UL	/* Receive collision
							 * error */
#define XEM_EIR_RECV_FCS_ERROR_MASK    0x00020000UL	/* Receive FCS error */
#define XEM_EIR_RECV_LEN_ERROR_MASK    0x00040000UL	/* Receive length field
							 * error */
#define XEM_EIR_RECV_SHORT_ERROR_MASK  0x00080000UL	/* Receive short frame
							 * error */
#define XEM_EIR_RECV_LONG_ERROR_MASK   0x00100000UL	/* Receive long frame
							 * error */
#define XEM_EIR_RECV_ALIGN_ERROR_MASK  0x00200000UL	/* Receive alignment
							 * error */

/**************************** Type Definitions *******************************/

/***************** Macros (Inline Functions) Definitions *********************/

/*****************************************************************************
*
* Low-level driver macros and functions. The list below provides signatures
* to help the user use the macros.
*
* u32 XEmac_mReadReg(u32 BaseAddress, int RegOffset)
* void XEmac_mWriteReg(u32 BaseAddress, int RegOffset, u32 Mask)
*
* void XEmac_mSetControlReg(u32 BaseAddress, u32 Mask)
* void XEmac_mSetMacAddress(u32 BaseAddress, u8 *AddressPtr)
*
* void XEmac_mEnable(u32 BaseAddress)
* void XEmac_mDisable(u32 BaseAddress)
*
* u32 XEmac_mIsTxDone(u32 BaseAddress)
* u32 XEmac_mIsRxEmpty(u32 BaseAddress)
*
* void XEmac_SendFrame(u32 BaseAddress, u8 *FramePtr, int Size)
* int XEmac_RecvFrame(u32 BaseAddress, u8 *FramePtr)
*
*****************************************************************************/

/****************************************************************************/
/**
*
* Read the given register.
*
* @param    BaseAddress is the base address of the device
* @param    RegOffset is the register offset to be read
*
* @return   The 32-bit value of the register
*
* @note	    None.
*
*****************************************************************************/
#define XEmac_mReadReg(BaseAddress, RegOffset) \
		    XIo_In32((BaseAddress) + (RegOffset))

/****************************************************************************/
/**
*
* Write the given register.
*
* @param    BaseAddress is the base address of the device
* @param    RegOffset is the register offset to be written
* @param    Data is the 32-bit value to write to the register
*
* @return   None.
*
* @note	    None.
*
*****************************************************************************/
#define XEmac_mWriteReg(BaseAddress, RegOffset, Data) \
		    XIo_Out32((BaseAddress) + (RegOffset), (Data))

/****************************************************************************/
/**
*
* Set the contents of the control register. Use the XEM_ECR_* constants
* defined above to create the bit-mask to be written to the register.
*
* @param    BaseAddress is the base address of the device
* @param    Mask is the 16-bit value to write to the control register
*
* @return   None.
*
* @note	    None.
*
*****************************************************************************/
#define XEmac_mSetControlReg(BaseAddress, Mask) \
		    XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, (Mask))

/****************************************************************************/
/**
*
* Set the station address of the EMAC device.
*
* @param    BaseAddress is the base address of the device
* @param    AddressPtr is a pointer to a 6-byte MAC address
*
* @return   None.
*
* @note	    None.
*
*****************************************************************************/
#define XEmac_mSetMacAddress(BaseAddress, AddressPtr)		    \
{								    \
    u32 MacAddr;						\
								    \
    MacAddr = ((AddressPtr)[0] << 8) | (AddressPtr)[1];		    \
    XIo_Out32((BaseAddress) + XEM_SAH_OFFSET, MacAddr);		    \
								    \
    MacAddr = ((AddressPtr)[2] << 24) | ((AddressPtr)[3] << 16) |   \
	      ((AddressPtr)[4] << 8) | (AddressPtr)[5];		    \
								    \
    XIo_Out32((BaseAddress) + XEM_SAL_OFFSET, MacAddr);		    \
}

/****************************************************************************/
/**
*
* Enable the transmitter and receiver. Preserve the contents of the control
* register.
*
* @param    BaseAddress is the base address of the device
*
* @return   None.
*
* @note	    None.
*
*****************************************************************************/
#define XEmac_mEnable(BaseAddress) \
{ \
    u32 Control; \
    Control = XIo_In32((BaseAddress) + XEM_ECR_OFFSET); \
    Control &= ~(XEM_ECR_XMIT_RESET_MASK | XEM_ECR_RECV_RESET_MASK); \
    Control |= (XEM_ECR_XMIT_ENABLE_MASK | XEM_ECR_RECV_ENABLE_MASK); \
    XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, Control); \
}

/****************************************************************************/
/**
*
* Disable the transmitter and receiver. Preserve the contents of the control
* register.
*
* @param    BaseAddress is the base address of the device
*
* @return   None.
*
* @note	    None.
*
*****************************************************************************/
#define XEmac_mDisable(BaseAddress) \
		XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, \
		    XIo_In32((BaseAddress) + XEM_ECR_OFFSET) & \
		    ~(XEM_ECR_XMIT_ENABLE_MASK | XEM_ECR_RECV_ENABLE_MASK))

/****************************************************************************/
/**
*
* Check to see if the transmission is complete.
*
* @param    BaseAddress is the base address of the device
*
* @return   TRUE if it is done, or FALSE if it is not.
*
* @note	    None.
*
*****************************************************************************/
#define XEmac_mIsTxDone(BaseAddress) \
	     (XIo_In32((BaseAddress) + XEM_ISR_OFFSET) & XEM_EIR_XMIT_DONE_MASK)

/****************************************************************************/
/**
*
* Check to see if the receive FIFO is empty.
*
* @param    BaseAddress is the base address of the device
*
* @return   TRUE if it is empty, or FALSE if it is not.
*
* @note	    None.
*
*****************************************************************************/
#define XEmac_mIsRxEmpty(BaseAddress) \
	  (!(XIo_In32((BaseAddress) + XEM_ISR_OFFSET) & XEM_EIR_RECV_DONE_MASK))

/****************************************************************************/
/**
*
* Reset MII compliant PHY
*
* @param    BaseAddress is the base address of the device
*
* @return   None.
*
* @note	    None.
*
*****************************************************************************/
#define XEmac_mPhyReset(BaseAddress) \
{ \
    u32 Control;				    \
    Control = XIo_In32((BaseAddress) + XEM_ECR_OFFSET); \
    Control &= ~XEM_ECR_PHY_ENABLE_MASK;		\
    XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, Control); \
    Control |= XEM_ECR_PHY_ENABLE_MASK;			\
    XIo_Out32((BaseAddress) + XEM_ECR_OFFSET, Control); \
}

/************************** Function Prototypes ******************************/

void XEmac_SendFrame(u32 BaseAddress, u8 * FramePtr, int Size);
int XEmac_RecvFrame(u32 BaseAddress, u8 * FramePtr);

#endif				/* end of protection macro */