viadriver.c

来自「source code of armboot for s3c4510」· C语言 代码 · 共 281 行

#include "armboot.h"
#include "command.h"
#include "net.h"
//#include "s3c2510.h"
#include "s5n8947.h"
#include "viadriver.h"
#include "log.h"
#include "swsys.h"
#include "swpkt.h"
#include "swreg.h"
#include "platform.h"

//#ifdef CONFIG_S3C2500	//used for selecting "s3c2500" when ./armbootcfg
//#ifdef CONFIG_S3C2510	//used for selecting "s3c2510" when ./armbootcfg
#ifdef CONFIG_S5N8947	//used for selecting "s5n8947" when ./armbootcfg

#if (CONFIG_COMMANDS & CFG_CMD_NET)

API_DEVICE			api_Mac_dev;


void InitEtherApi(bd_t *bd)
{
	api_init(bd, &api_Mac_dev);
}

void eth_halt( void )
{
	api_MacIntDisable(&api_Mac_dev);
	api_MacHWStop(&api_Mac_dev);
	api_MacHWReset(&api_Mac_dev);
	api_MacBuffFree(&api_Mac_dev);
}

int eth_init( bd_t *bd )
{
	api_MacBuffInit(&api_Mac_dev);
	api_MacHWInit(&api_Mac_dev);
	api_MacHWStart(&api_Mac_dev);		
    return 0;
}

/* Get a data block via Ethernet */
extern int eth_rx(void)
{
	api_MacRcv(&api_Mac_dev);
    return 0;
}

/* Send a data block via Ethernet. */
extern int eth_send(volatile void *packet, int length)
{
	api_MacSend(&api_Mac_dev, (ulong)packet, length);

    return 0;
}

/***************************/
/* Sub Function for driver */
/***************************/

/*******************************************************************************
*
* api_MacHWReset - .
*
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO: 
*/
int api_MacHWReset(API_DEVICE *api_Mac_dev)
{
	
    // Trigger MAC & PHY reset signal
    SWSYS_vSwitchResetSignal();
	return OK;
}

/*******************************************************************************
*
*    api_MacBuffInit - Initialize TX and RX FD lists
*    Make a circular list of Rx and TX frame descriptors and buffers.
*    Two global variables gpReceiveFrameDescStart and gpTransmitFrameDescStart 
*    stores the pointer to the start of the list.  BDMA TX/RX PTR registers are 
*    also initialized with the start of the appropriate list.
*
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO: 
*/
int api_MacBuffInit(API_DEVICE *api_Mac_dev)
{
	STATUS status = OK;
	return status;
}

/*******************************************************************************
*
*	api_MacBuffFree - Free the allocated TX and RX FD lists and buffers
*	This function frees all the allocated TX and RX FDs and the associated
*	buffers
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO: 
*/
int api_MacBuffFree(API_DEVICE *api_Mac_dev)
{
	STATUS status = OK;
	return status;
}

/*******************************************************************************
*
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO:
*/
int api_MacHWInit(API_DEVICE *api_Mac_dev)
{
		STATUS status = OK;

		PLAT_vInit();	//cancel by hill 20070920
		SWSYS_vBoardInit();
		SWPKT_vSetMacAddress(api_Mac_dev->enetAddr);

		return status;
}


/*******************************************************************************
*
* api_MacHWStart - .
*
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO: 
*/
int api_MacHWStart(API_DEVICE *api_Mac_dev)
{
	STATUS status = OK;

	SWPKT_vDrvOpen();
	
	return status;
}

/*******************************************************************************
*
* api_MacHWStop - .
*
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO: 
*/
int api_MacHWStop (API_DEVICE *api_Mac_dev)
{
	STATUS status = OK;
	
	SWSYS_vBoardShutdown();
	PLAT_vInit();
	return status;
}

/*******************************************************************************
*
* api_MacRcv - .
*
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO: 
*/

void api_MacRcv(API_DEVICE *api_Mac_dev)
{
	
	int 			frameLength;
	SRBuf  pPktBuf;

	//modified by hill 20070919
	//SYS_vIsrIntaAss();
	//add by hill 20070919
	ISR_vSwitch ();
	if(SWPKT_bRecvPkt(&pPktBuf))
	{
		frameLength = pPktBuf.pkb_u16BufLen;
		NetReceive(pPktBuf.pkb_au8Buffer, frameLength);
	}
}

/*******************************************************************************
*
* api_MacSend - .
*
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO: 
*/
int api_MacSend(API_DEVICE *api_Mac_dev, ulong pData, int len)
{	
	SRBuf pPktBuf;
	int i;
	
	pPktBuf.pu8AppData = 0;
	pPktBuf.u16AppDataOffset = 0;
	pPktBuf.pkb_u8SrcPortId = 26;
	pPktBuf.pkb_bTagged = 0;
	pPktBuf.pkb_u16VID = 0;
	pPktBuf.pkb_u8Priority = 0;
	pPktBuf.pkb_u32TxMbrPrtMsk = 0;
	pPktBuf.pkb_u32TxTagPrtMsk = 0;
	pPktBuf.pkb_u16BufLen = len;
	for(i=0;i<len;i++)
	{	
		pPktBuf.pkb_au8Buffer[i]= *((UINT8 *)pData +i);
	}

	SWPKT_bSendPkt(&pPktBuf);
	return OK;
}


/*******************************************************************************
*
* api_MacIntEnable - .
*
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO: 
*/
int api_MacIntEnable(API_DEVICE *api_Mac_dev)
{
	STATUS status = OK;
	SWPKT_vDrvOpen();

		
	return status;
}

/*******************************************************************************
*
* api_MacIntDisable - .
*
*
* RETURNS: OK or ERROR return status why..
*
* SEE ALSO: 
*/
int api_MacIntDisable(API_DEVICE *api_Mac_dev)
{
	STATUS status = OK;

	    // disable switch interrupt mask
    SWREG_vWriteU8(CPUIF_IRQ_MASK, 0);

    // disable CPU IO
    SWREG_vBitsOffU8(CPUPORT_CFG, CPU_CFG_RX_ENABLE | CPU_CFG_TX_ENABLE);
    // stop forwarding ARP to CPU
    SWREG_vWriteU8(FWDCTL_ARP_CFG, 0);

	return status;
}

void api_init(bd_t *bd, API_DEVICE *api_Mac_dev)
{
	SYS_ENET_ADDR_GET(api_Mac_dev, bd->bi_enetaddr);
}

#endif /* COMMANDS & CFG_NET */

#endif /* CONFIG_S3C2510 */