/*******************************************************************************
*** Note: Copy rights resevered to Beijing Pacific Linkair Communications Co. 
***
*** File Name: NICDevice.c
*** Purpose  : Supply the NIC EEPROM Accessing Layer Routines and some other definitions
***
*** Author   : Guangzhao Tian
*** Modified : By Guangzhao Tian at 2000/9/7
***
**/

#include "NICMacro.h"
#include "NICWinReg.h"
#include "NICCommand.h"
#include "NICEeprom.h"
#include "NICData.h"
#include "NICHelper.h"
#include "NICExport.h"

/*******************************************************************************
* NIC_DeviceStart - start the device
* This function  start the NIC Device
*/
NIC_STATUS NIC_DeviceStart(IN PNIC_INFORMATION pAdapter)
{
	NIC_STATUS nicStatus;

	USHORT diagnostics;
	ULONG dmaControl;

	DebugMsg("\n***********\nNow Start Adapter ... \n ");

	/*  Clear the statistics from the hardware.*/
  	DebugMsg("  Now Clear Statices by reading them! ... ");
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, CARRIER_LOST_REGISTER);
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, SQE_ERRORS_REGISTER);
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, MULTIPLE_COLLISIONS_REGISTER);
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, SINGLE_COLLISIONS_REGISTER);
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, LATE_COLLISIONS_REGISTER);
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, RX_OVERRUNS_REGISTER);
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, FRAMES_TRANSMITTED_OK_REGISTER);
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, FRAMES_RECEIVED_OK_REGISTER);
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, FRAMES_DEFERRED_REGISTER);
	NIC_READ_PORT_UCHAR(pAdapter->IoBaseAddress, UPPER_FRAMES_OK_REGISTER);
	NIC_READ_PORT_USHORT(pAdapter->IoBaseAddress, BYTES_RECEIVED_OK_REGISTER);
	NIC_READ_PORT_USHORT(pAdapter->IoBaseAddress, BYTES_TRANSMITTED_OK_REGISTER);
    DebugMsg("  Done ! \n");

	/* Enable upper bytes counting in diagnostics register. 
	NIC_COMMAND(pAdapter->IoBaseAddress,
		                  COMMAND_SELECT_REGISTER_WINDOW | REGISTER_WINDOW_4);

 	NIC_READ_PORT_USHORT( pAdapter->IoBaseAddress, 
		                              NETWORK_DIAGNOSTICS_REGISTER,diagnostics );

 	diagnostics |= NETWORK_DIAGNOSTICS_UPPER_BYTES_ENABLE;
 	NIC_WRITE_PORT_USHORT(pAdapter->IoBaseAddress,NETWORK_DIAGNOSTICS_REGISTER,diagnostics);*/

	/* Enable counter speed in DMA control.
 	NIC_READ_PORT_ULONG(pAdapter->IoBaseAddress, DMA_CONTROL_REGISTER,dmaControl );

	if (100000000 == pAdapter->Hardware.LinkSpeed)
                   dmaControl |= DMA_CONTROL_COUNTER_SPEED;
	NIC_WRITE_PORT_ULONG(pAdapter->IoBaseAddress,DMA_CONTROL_REGISTER,dmaControl); */ 
	
	/* Enable the statistics back. */
     	DebugMsg("  Now Enable Statistics Register ...");
	NIC_COMMAND(pAdapter->IoBaseAddress , COMMAND_STATISTICS_ENABLE);
     	DebugMsg("  Done ! \n");
 	
	/* Acknowledge any pending interrupts. */
     	DebugMsg("  Now Acknowedge all Interrupts ...");
 	NIC_ACKNOWLEDGE_ALL_INTERRUPT(pAdapter->IoBaseAddress);
     	DebugMsg("  Done ! \n");

	/* Enable indication for all interrupts. 
     	DebugMsg("  Now Enable all Interrupt Indications ...");
	NIC_ENABLE_ALL_INTERRUPT_INDICATION(pAdapter->IoBaseAddress);
     	DebugMsg("  Done ! \n"); */

	/* Enable all interrupts to the host. 
     	DebugMsg("  Now Unmask all Interrupts ...");
	NIC_UNMASK_ALL_INTERRUPT(pAdapter->IoBaseAddress);
     	DebugMsg("  Done ! \n"); */
	
	/* Enable the transmit and receive engines.*/
     	DebugMsg("  Now Enable Receive Engine ...");
	NIC_COMMAND(pAdapter->IoBaseAddress, COMMAND_RX_ENABLE);
      	DebugMsg("  Done ! \n");
    	DebugMsg("  Now Enable Transmite Engine ...");
	NIC_COMMAND(pAdapter->IoBaseAddress, COMMAND_TX_ENABLE);
     	DebugMsg("  Done ! \n");
 
	DebugMsg("Start Adapter -- Done ! \n**************\n ");
	return NIC_STATUS_SUCCESS;
}

/*******************************************************************************
* NIC_DeviceReset - reset  the device
* This function write to  Global Reset Register and wait for command complete
*/
NIC_STATUS NIC_DeviceReset (IN NIC_INFORMATION * pAdapter)
{ 
    DebugMsg("\n*************\nNow Reset the NIC Device...\n");
    
    /* issue the reset command */
   if(NIC_STATUS_FAILURE==NIC_COMMAND_WAIT (pAdapter, COMMAND_GLOBAL_RESET) )
    {
      DebugMsg(" Device Resetting Failuer ! \n ");
       return NIC_STATUS_FAILURE;
    }
    
    DebugMsg("Device Resetted, Wait a minute ....\n");
    /* wait for a while */
    NIC_DELAY(NIC_RESETWAITTIME);
 
    DebugMsg("Device Resetted Successfully ! \n**************\n");   
    return NIC_STATUS_SUCCESS;
}


/************************************************************************ 
* NIC_DeviceStop - stop the device
* This function stops the adapter and frees up any buffers allocated to the
* upload and download descriptors.
*/
NIC_STATUS NIC_DeviceStop (IN NIC_INFORMATION * pAdapter)
{
    int	ix;
	USHORT  wMediatStatus;

    	DebugMsg("\n*********\nNow Stop the Device ...\n");
   
    /* Mask and Acknownedge all Interruptes */
    	DebugMsg(" Now Mask and Acknowledge all the Interruptes ...");
    NIC_MASK_ALL_INTERRUPT(pAdapter->IoBaseAddress) ;
    NIC_ACKNOWLEDGE_ALL_INTERRUPT(pAdapter->IoBaseAddress);
     	DebugMsg("  Done ! \n");

	/* Disable transmit and receive.*/
		DebugMsg("  Now Diable Tx , Rx and Statistics ...");
    NIC_COMMAND(pAdapter->IoBaseAddress , COMMAND_TX_DISABLE);
	NIC_COMMAND(pAdapter->IoBaseAddress , COMMAND_RX_DISABLE);
	NIC_COMMAND(pAdapter->IoBaseAddress , COMMAND_STATISTICS_DISABLE);
     	DebugMsg("  Done ! \n");
	
	/** Select Window  4 ****/
    	DebugMsg(" Now Switch to Reg Win 4 ...");
	NIC_COMMAND(pAdapter->IoBaseAddress , COMMAND_SELECT_REGISTER_WINDOW | REGISTER_WINDOW_4);
     	DebugMsg("  Done ! \n");

		DebugMsg("  Now Wait for Tx in Progress gone off ..."); 
	/* Wait for the transmit in progress to go off. */
    for (ix = 0; ix < NIC_WAITTIMES; ix++)
	{
        wMediatStatus = NIC_READ_PORT_USHORT(pAdapter->IoBaseAddress,MEDIA_STATUS_REGISTER);

		if(! (wMediatStatus & MEDIA_STATUS_TX_IN_PROGRESS) ) break;
		NIC_DELAY(NIC_TIMEOUT);
	}

    if (ix == NIC_TIMEOUT)
	{
		DebugMsg("\n It seems the Tx in progress will Never Complete! \n");
		DebugMsg("We will esaped from this trap! \n");
	 /*	return NIC_STATUS_FAILURE; */
	}
     	DebugMsg("  Done !\n"); 

		DebugMsg("  Now Wait for Rx in Progress gone off ..."); 
	/* Wait for the receive in prograss to go quiet. */
    for (ix = 0; ix < NIC_WAITTIMES; ix++)
	{
        wMediatStatus = NIC_READ_PORT_USHORT(pAdapter->IoBaseAddress,MEDIA_STATUS_REGISTER);

		if(! (wMediatStatus & MEDIA_STATUS_CARRIER_SENSE) ) break;
		NIC_DELAY(NIC_TIMEOUT);
	}

    if (ix == NIC_TIMEOUT)
	{
		DebugMsg("\n It seems the Rx in progress will Never Complete ! \n");
		DebugMsg( " We will esaped from this trap ! \n");
	 /*	return NIC_STATUS_FAILURE; */
	}
     	DebugMsg("  Done !\n"); 

     	DebugMsg("  Now Try to reset the NIC Card ..."); 
	/* Issue Global reset.  */
	NIC_COMMAND_WAIT ( pAdapter ,
		              COMMAND_GLOBAL_RESET          | GLOBAL_RESET_MASK_VCO_RESET   |
					 GLOBAL_RESET_MASK_TP_AUI_RESET | GLOBAL_RESET_MASK_ENDEC_RESET |
					 GLOBAL_RESET_MASK_AISM_RESET   | GLOBAL_RESET_MASK_SMB_RESET   );
     	DebugMsg("  Done ! \n");

 /*   	DebugMsg("Now wait a minute for Resetting Completed !\n");   
    NIC_DELAY(NIC_RESETWAITTIME); */

    	DebugMsg("  Now Try to reset the Tx ..."); 
	/*reset the Tx and Rx*/
	NIC_COMMAND_WAIT(pAdapter, COMMAND_TX_RESET);
    	DebugMsg("  Done !\n");     

   		DebugMsg(" Now Try to reset the Rx..."); 
	NIC_COMMAND_WAIT(pAdapter, COMMAND_RX_RESET);
    	DebugMsg("  Done !\n"); 
    
   	DebugMsg("Stop the Device -- Done! \n******************\n");
      return;
}

/**  Above are Routines for Controlling the NIC Card Device
***  End of NICDevice.c
****************************************************************************************/