aironet4500_core.c

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	      udelay(1);
	      if (cycles > 10000) {
			printk(KERN_CRIT "deadlock in bap\n");
			goto return_AWC_ERROR;
	      };
              status = AWC_IN(cmd->bap->offset);
              if (status & AWC_BAP_BUSY) {
                 if (cycles % 100 == 99 ) {
                      save_flags(flags);
                      cli();
                      if (!cleared){
                      	AWC_IN(cmd->dev->base_addr + 0x26);
                      	AWC_OUT(cmd->dev->base_addr + 0x26, 0);
                      	WAIT61x3;
                      	cleared = 1;
                      }  
                      AWC_OUT(cmd->bap->select, cmd->rid);
                      WAIT61x3;
                      AWC_OUT(cmd->bap->offset, cmd->offset);
                      restore_flags(flags);
                	#ifdef AWC_DEBUG
	  			printk("B");
	  		#endif      
                      
                      if ( cmd->priv->sleeping_bap)
         		udelay(bap_sleep);
         	      else udelay(30);
                      //restart_timeout();
                  }
                  if (jiffies - jiff > 1 ) {
                  	AWC_ENTRY_EXIT_DEBUG(" BAD BUSY  exit \n");
                  	awc_dump_registers(cmd->dev);
                  	goto return_AWC_ERROR;
                  }
                  continue;
              }
             if (status & AWC_BAP_DONE) {
                  WAIT61x3; WAIT61x3; WAIT61x3;
                  
                //  if ((status & 0xfff) != cmd->offset)
                //  	printk(KERN_ERR "awcPBD %x ",status);
                   AWC_ENTRY_EXIT_DEBUG(" exit \n");
                  if (cmd->priv->sleeping_bap)
                  	udelay(bap_sleep_after_setup); 
                   
                  // success
                  goto return_AWC_SUCCESS;
              }

              if (status & AWC_BAP_ERR) {
             	  AWC_ENTRY_EXIT_DEBUG(" BAD  exit \n");
                  // invalid rid or offset
                  printk(KERN_ERR "bap setup error bit set for rid %x offset %x \n",cmd->rid,cmd->offset);
                  awc_dump_registers(cmd->dev);
                  goto return_AWC_ERROR;
              }
              if ( cmd->priv->sleeping_bap)
         		udelay(bap_sleep);
              else udelay(1);
              // -- awc missed it, try again
         
              save_flags(flags);
              cli();
              AWC_OUT(cmd->bap->select, cmd->rid);
              WAIT61x3;
              AWC_OUT(cmd->bap->offset, cmd->offset);
              WAIT61x3;
              restore_flags(flags);
		
	      if (jiffies - jiff > HZ)
	      if (! (status &(AWC_BAP_ERR |AWC_BAP_DONE |AWC_BAP_BUSY))){
		printk("aironet4500: bap setup lock without any status bits set");
		awc_dump_registers(cmd->dev);
                goto return_AWC_ERROR;

	      };
         
          }

     AWC_ENTRY_EXIT_DEBUG(" WE MUST NOT BE HERE exit \n");

ejected_unlock:
     if (bap_setup_spinlock)
	my_spin_unlock_irqrestore(&cmd->priv->bap_setup_spinlock,cmd->priv->bap_setup_spinlock_flags);	  
     AWC_ENTRY_EXIT_DEBUG(" ejected_unlock_exit \n");	
     return -1;

return_AWC_ERROR:
     if (bap_setup_spinlock)
	my_spin_unlock_irqrestore(&cmd->priv->bap_setup_spinlock,cmd->priv->bap_setup_spinlock_flags);	  
     AWC_ENTRY_EXIT_DEBUG(" AWC_ERROR_exit \n");
     return AWC_ERROR;          

return_AWC_SUCCESS:
     if (bap_setup_spinlock)
	my_spin_unlock_irqrestore(&cmd->priv->bap_setup_spinlock,cmd->priv->bap_setup_spinlock_flags);	  
     AWC_ENTRY_EXIT_DEBUG(" exit \n");
     return AWC_SUCCESS;          
}


	// requires call to awc_bap_setup() first
inline 
int
awc_bap_read(struct awc_command * cmd) {
	register u16 len;
	register u16 * buff = (u16 *) cmd->buff;
	register u16 port= cmd->bap->data;


        AWC_ENTRY_EXIT_DEBUG(" entry awc_bap_read ");
     	if (!cmd->bap && !(cmd->lock_state & (AWC_BAP_SEMALOCKED |AWC_BAP_LOCKED)))
     		DEBUG(0,"no bap or bap not locked %d !!", cmd->command);
        cmd->len = (cmd->len + 1) & (~1);               // round up to even value
        len = cmd->len / 2;
	if (cmd->priv->ejected)
			return -1;


	if (cmd->priv->sleeping_bap)
		udelay(bap_sleep_before_write);
		
        if (!cmd->priv->sleeping_bap)
        	while ( len-- > 0) 
			*buff++ = AWC_IN(port);
	else 
		while ( len-- > 0){
	                *buff++ = AWC_IN(port);
	        }
	AWC_ENTRY_EXIT_DEBUG(" exit  \n");
  	if (cmd->priv->ejected)
			return -1;
        	
        return AWC_SUCCESS;
}

      // requires call to awc_bap_setup() first
inline 
int
awc_bap_write(struct awc_command * cmd){
          register u16 len;
          register u16 * buff = (u16 *) cmd->buff;
          register u16 port= cmd->bap->data;
          
           
      AWC_ENTRY_EXIT_DEBUG(" entry awc_bap_write ");
      if (!cmd->bap && !(cmd->lock_state & (AWC_BAP_SEMALOCKED |AWC_BAP_LOCKED)))
     		DEBUG(0,"no bap or bap not locked %d !!", cmd->command);
     
          cmd->len = (cmd->len + 1) & (~1);               // round up to even value
          len = cmd->len / 2;

	  if (cmd->priv->ejected)
			return -1;

	  if (cmd->priv->sleeping_bap)
		udelay(bap_sleep_before_write);


          if (!cmd->priv->sleeping_bap)
          	while (len-- > 0) 
              		AWC_OUT(port, *buff++);
          else
          	while ( len-- > 0){
          		AWC_OUT(port, *buff++);
          	}
	  if (cmd->priv->ejected)
			return -1;


      AWC_ENTRY_EXIT_DEBUG(" exit  \n");
              	
          return AWC_SUCCESS;
}




/***************************** 	RID READ/WRITE	********************/

const struct aironet4500_rid_selector  aironet4500_RID_Select_General_Config	=(const struct aironet4500_rid_selector){ 0xFF10, 1,0,0, "General Configuration" }; //        See notes General Configuration        Many configuration items.
const struct aironet4500_rid_selector  aironet4500_RID_Select_SSID_list		=(const struct aironet4500_rid_selector){ 0xFF11, 1,0,0, "Valid SSID list" }; //          See notes Valid SSID list              List of SSIDs which the station may associate to.
const struct aironet4500_rid_selector  aironet4500_RID_Select_AP_list		=(const struct aironet4500_rid_selector){ 0xFF12, 1,0,0, "Valid AP list" }; //          See notes Valid AP list                List of APs which the station may associate to.
const struct aironet4500_rid_selector  aironet4500_RID_Select_Driver_name	=(const struct aironet4500_rid_selector){ 0xFF13, 1,0,0, "Driver name" }; //          See notes Driver name                  The name and version of the driver (for debugging)
const struct aironet4500_rid_selector  aironet4500_RID_Select_Encapsulation	=(const struct aironet4500_rid_selector){ 0xFF14, 1,0,0, "Ethernet Protocol" }; //          See notes Ethernet Protocol            Rules for encapsulating ethernet payloads onto 802.11.
const struct aironet4500_rid_selector  aironet4500_RID_Select_WEP_volatile	=(const struct aironet4500_rid_selector){ 0xFF15, 1,0,0, "WEP key volatile" }; //          
const struct aironet4500_rid_selector  aironet4500_RID_Select_WEP_nonvolatile	=(const struct aironet4500_rid_selector){ 0xFF16, 1,0,0, "WEP key non-volatile" }; //
const struct aironet4500_rid_selector  aironet4500_RID_Select_Modulation	=(const struct aironet4500_rid_selector){ 0xFF17, 1,0,0, "Modulation" }; //
const struct aironet4500_rid_selector  aironet4500_RID_Select_Active_Config	=(const struct aironet4500_rid_selector){ 0xFF20, 0,1,1, "Actual Configuration" }; //          Read only      Actual Configuration    This has the same format as the General Configuration.
const struct aironet4500_rid_selector  aironet4500_RID_Select_Capabilities	=(const struct aironet4500_rid_selector){ 0xFF00, 0,1,0, "Capabilities" }; //          Read Only      Capabilities            PC4500 Information
const struct aironet4500_rid_selector  aironet4500_RID_Select_AP_Info		=(const struct aironet4500_rid_selector){ 0xFF01, 0,1,1, "AP Info" }; //          Read Only      AP Info                 Access Point Information
const struct aironet4500_rid_selector  aironet4500_RID_Select_Radio_Info	=(const struct aironet4500_rid_selector){ 0xFF02, 0,1,1, "Radio Info" }; //          Read Only      Radio Info              Radio Information -- note radio specific
const struct aironet4500_rid_selector  aironet4500_RID_Select_Status		=(const struct aironet4500_rid_selector){ 0xFF50, 0,1,1, "Status" }; //          Read Only      Status                  PC4500 Current Status Information
const struct aironet4500_rid_selector  aironet4500_RID_Select_16_stats		=(const struct aironet4500_rid_selector){ 0xFF60, 0,1,1, "Cumulative 16-bit Statistics" }; //          Read Only      16-bit Statistics       Cumulative 16-bit Statistics
const struct aironet4500_rid_selector  aironet4500_RID_Select_16_stats_delta	=(const struct aironet4500_rid_selector){ 0xFF61, 0,1,1, "Delta 16-bit Statistics" }; //          Read Only      16-bit Statistics       Delta 16-bit Statistics (since last clear)
const struct aironet4500_rid_selector  aironet4500_RID_Select_16_stats_clear	=(const struct aironet4500_rid_selector){ 0xFF62, 0,1,1, "Delta 16-bit Statistics and Clear" }; //          Read Only /    16-bit Statistics       Delta 16-bit Statistics and Clear
const struct aironet4500_rid_selector  aironet4500_RID_Select_32_stats      	=(const struct aironet4500_rid_selector){ 0xFF68, 0,1,1, "Cumulative 32-bit Statistics" }; //          Read Only      32-bit Statistics       Cumulative 32-bit Statistics
const struct aironet4500_rid_selector  aironet4500_RID_Select_32_stats_delta	=(const struct aironet4500_rid_selector){ 0xFF69, 0,1,1, "Delta 32-bit Statistics"  }; //          Read Only      32-bit Statistics       Delta 32-bit Statistics (since last clear)
const struct aironet4500_rid_selector  aironet4500_RID_Select_32_stats_clear	=(const struct aironet4500_rid_selector){ 0xFF6A, 0,1,1, "Delta 32-bit Statistics and Clear" }; //          Read Only /    32-bit Statistics       Delta 32-bit Statistics and Clear

EXPORT_SYMBOL(aironet4500_RID_Select_General_Config); 
EXPORT_SYMBOL(aironet4500_RID_Select_SSID_list); 
EXPORT_SYMBOL(aironet4500_RID_Select_AP_list); 
EXPORT_SYMBOL(aironet4500_RID_Select_Driver_name); 
EXPORT_SYMBOL(aironet4500_RID_Select_Encapsulation); 
EXPORT_SYMBOL(aironet4500_RID_Select_WEP_volatile); 
EXPORT_SYMBOL(aironet4500_RID_Select_WEP_nonvolatile); 
EXPORT_SYMBOL(aironet4500_RID_Select_Modulation); 
EXPORT_SYMBOL(aironet4500_RID_Select_Active_Config); 
EXPORT_SYMBOL(aironet4500_RID_Select_Capabilities); 
EXPORT_SYMBOL(aironet4500_RID_Select_AP_Info); 
EXPORT_SYMBOL(aironet4500_RID_Select_Radio_Info); 
EXPORT_SYMBOL(aironet4500_RID_Select_Status); 
EXPORT_SYMBOL(aironet4500_RID_Select_16_stats); 
EXPORT_SYMBOL(aironet4500_RID_Select_16_stats_delta); 
EXPORT_SYMBOL(aironet4500_RID_Select_16_stats_clear); 
EXPORT_SYMBOL(aironet4500_RID_Select_32_stats); 
EXPORT_SYMBOL(aironet4500_RID_Select_32_stats_delta); 
EXPORT_SYMBOL(aironet4500_RID_Select_32_stats_clear); 


struct awc_rid_dir awc_rids_temp[]={
	// following MUST be consistent with awc_rids_setup !!!
   {&aironet4500_RID_Select_General_Config,		0x100 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_SSID_list, 			 0x68 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_AP_list, 			 0x20 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_Driver_name, 		 0x12 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_Encapsulation, 		 0x22 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_Active_Config, 		0x100 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_Capabilities, 		 0x80 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_Status, 			 0x6c , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_AP_Info, 			 0x06 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_32_stats, 			0x184 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_32_stats_delta, 		0x184 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_32_stats_clear, 		0x184 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_WEP_volatile,  		0x1c , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_WEP_nonvolatile,		0x1c , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_Modulation, 		0x04 , NULL, NULL, NULL,0 },

#ifdef AWC_USE_16BIT_STATS
   {&aironet4500_RID_Select_16_stats, 			0xC2 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_16_stats_delta,		0xC2 , NULL, NULL, NULL,0 },
   {&aironet4500_RID_Select_16_stats_clear, 		0xC2 , NULL, NULL, NULL,0 },
#else 
   {NULL},{NULL},{NULL},
#endif	
 
   {0} 


};



int 
awc_readrid(struct net_device * dev, struct aironet4500_RID * rid, void *pBuf ){
	  struct awc_command cmd;

	  int sleep_state ;

       AWC_ENTRY_EXIT_DEBUG(" entry awc_readrid ");
          if (!rid) return -1;
          if (!rid->selector) return -1;
          AWC_INIT_COMMAND(AWC_NOT_CLI,cmd,dev,0x21, rid->selector->selector,
          	rid->selector->selector, rid->offset, (rid->bits / 8),pBuf);

	  sleep_state = cmd.priv->sleeping_bap ;
	  cmd.priv->sleeping_bap = 1;
	  udelay(500);
	  AWC_BAP_LOCK_NOT_CLI(cmd);
	  if (awc_issue_command_and_block(&cmd))	goto final;
	  udelay(1);
          if (awc_bap_setup(&cmd))			goto final;
          udelay(1);
          if (awc_bap_read(&cmd))			goto final;
          cmd.priv->sleeping_bap = sleep_state;

	  AWC_RELEASE_COMMAND(cmd);
          AWC_ENTRY_EXIT_DEBUG(" exit \n"); 
 	  return 0;
     final:
     	  cmd.priv->sleeping_bap = sleep_state;
     	  AWC_RELEASE_COMMAND(cmd);
     	  AWC_ENTRY_EXIT_DEBUG("  BAD exit \n");
	   return -1; ;
}

int 
awc_writerid(struct net_device * dev, struct aironet4500_RID * rid, void *pBuf){

	  struct awc_command cmd;
	  int sleep_state ;

     AWC_ENTRY_EXIT_DEBUG(" entry awc_writerid ");
     

          AWC_INIT_COMMAND(AWC_NOT_CLI,cmd,dev,0x21, rid->selector->selector,
          	rid->selector->selector,rid->offset, rid->bits/8,pBuf);

	  sleep_state = cmd.priv->sleeping_bap ;
	  cmd.priv->sleeping_bap = 1;

	  udelay(500);
	  AWC_BAP_LOCK_NOT_CLI(cmd);	  
	  if (awc_issue_command_and_block(&cmd))	goto final;
	  udelay(10);
          if (awc_bap_setup(&cmd))			goto final;
          udelay(10);
          if (awc_bap_write(&cmd))			goto final;
          udelay(10);	
          cmd.command=0x121;
	  if (awc_issue_command_and_block(&cmd))	goto final;
          cmd.priv->sleeping_bap = sleep_state;

	  AWC_RELEASE_COMMAND(cmd);
          AWC_ENTRY_EXIT_DEBUG(" exit \n"); 
 	  return 0;
     final:
     	  cmd.priv->sleeping_bap = sleep_state;
     	  AWC_RELEASE_COMMAND(cmd);
     	  AWC_ENTRY_EXIT_DEBUG("  BAD exit \n");
	   return -1; ;
}

int 
awc_readrid_dir(struct net_device * dev, struct awc_rid_dir * rid ){
	  struct awc_command cmd;
	  int sleep_state;

     AWC_ENTRY_EXIT_DEBUG(" entry awcreadrid_dir ");
     

          AWC_INIT_COMMAND(AWC_NOT_CLI,cmd,dev,0x21, rid->selector->selector,
          	rid->selector->selector,0, rid->bufflen,rid->buff);

	  sleep_state = cmd.priv->sleeping_bap ;
	  cmd.priv->sleeping_bap = 1;

	  udelay(500);

	  AWC_BAP_LOCK_NOT_CLI(cmd);
	  if (awc_issue_command_and_block(&cmd))	goto final;
	  
          if (awc_bap_setup(&cmd))			goto final;
          if (awc_bap_read(&cmd))			goto final;
          cmd.priv->sleeping_bap = sleep_state;

	  AWC_RELEASE_COMMAND(cmd);
          AWC_ENTRY_EXIT_DEBUG(" exit \n"); 
 	  return 0;
     final:
     	  cmd.priv->sleeping_bap = sleep_state;
     	  AWC_RELEASE_COMMAND(cmd);
     	  AWC_ENTRY_EXIT_DEBUG("  BAD exit \n");
	   return -1; ;
}

int 
awc_writerid_dir(struct net_device * dev, struct awc_rid_dir * rid){

	  struct awc_command cmd;
	  int sleep_state ;


     AWC_ENTRY_EXIT_DEBUG(" entry awc_writerid_dir ");
     


          AWC_INIT_COMMAND(AWC_NOT_CLI,cmd,dev,0x21, rid->selector->selector,
          	rid->selector->selector,0, rid->bufflen,((char *)rid->buff));

	  sleep_state = cmd.priv->sleeping_bap ;
	  cmd.priv->sleeping_bap = 1;

	  udelay(500);

	  AWC_BAP_LOCK_NOT_CLI(cmd);

	  if (awc_issue_command_and_block(&cmd))	goto final;
          if (awc_bap_setup(&cmd))			goto final;
          if (awc_bap_write(&cmd))			goto final;
          cmd.priv->sleeping_bap = sleep_state;
	            
          cmd.command=0x121;
          udelay(500);
	  if (awc_issue_command_and_block(&cmd))	goto final;

	  AWC_RELEASE_COMMAND(cmd);
          AWC_ENTRY_EXIT_DEBUG(" exit \n"); 
 	  return 0;
     final:
     	  cmd.priv->sleeping_bap = sleep_state;
     	  AWC_RELEASE_COMMAND(cmd);
     	  AWC_ENTRY_EXIT_DEBUG("  BAD exit \n");
	   return -1; ;
}

EXPORT_SYMBOL(awc_readrid);
EXPORT_SYMBOL(awc_writerid);
EXPORT_SYMBOL(awc_readrid_dir);
EXPORT_SYMBOL(awc_writerid_dir);

/*****************************		STARTUP		*******************/


inline
int
awc_issue_blocking_command(struct net_device * dev,u16 comm){

	  struct awc_command cmd;
//	  struct awc_private * priv = (struct awc_private *)dev->priv;

     AWC_ENTRY_EXIT_DEBUG(" entry awc_issue_blocking_command ");
     
          AWC_INIT_COMMAND(AWC_NOT_CLI,cmd,dev,comm,0, 0, 0, 0 ,0 );

          AWC_BAP_LOCK_NOT_CLI(cmd);

          if (awc_issue_command_and_block(&cmd))
          	goto final;

	  AWC_RELEASE_COMMAND(cmd);
          AWC_ENTRY_EXIT_DEBUG(" exit \n"); 
 	  return 0;
     final:
     	  AWC_RELEASE_COMMAND(cmd);
     	  AWC_ENTRY_EXIT_DEBUG("  BAD exit \n");
	  return -1; ;
	  
};

int 
awc_issue_soft_reset(struct net_device * dev){

	u16 status ;
//	int i= 0;

/*	outw(inw(dev->base_addr + 0x30), dev->base_addr + 0x32);
	udelay(10);
	outw(inw(dev->base_addr + 0x30), dev->base_addr + 0x34);

	for (i=0; i< 32; i++)
		outw(0,dev->base_addr + i*2);
	udelay(100);
	outw(0x6,dev->base_addr + 0x34);