intprismend.c

vworks 下wlan的实现代码

/* intPrismEnd.c - END driver for Wireless LAN cards */

/* Copyright 2001-2003 Wind River Systems, Inc. */

/*
modification history
--------------------
02t,18jul03,rb  Added ARMARCH4 back to #ifdef for ARM integrator stability
                 enhancements
02s,17jun03,rb  Minor cosmetic changes
02r,12jun03,rb  Made stability improvments for wrSbcPxa250
02q,29may03,ggg  Correct non-SNAP packet ISR handling
02p,09may03,rb  Removed warnings caused by IPv6 integration
02o,08may03,rb  Added RX Buffer chaining to improve flood performance and stability
02n,30apr03,ss  removed SUBEND references
02m,29apr03,rb  Fix for SPR 87953 - change ARMARCH4 workaround to XSCALE and
                 STRONGARM
02l,29apr03,rb  Demote error message in intPrismFlags about prom. mode
02k,25apr03,ss  moved version info to BSP level file
02j,22apr03,ss  added version info
02i,22apr03,ss  update to use intPrismTertAp.h
02h,28feb03,rb  Fixed endian bug showing WDS links in intPrismShow()
02g,26feb03,ss  Fixed diab compiler warningses
02f,13feb03,rb  Added support for WDS links
02e,03oct02,rb  Minor bug fixes, updates for PCD release
02d,18jul02,rb  Made fix for SPR 79871 less general
02c,18jul02,rb  Prevent IFF_PROMISC from entering promiscuous mode if you're
                 an AP - SPR 79871
02b,18jul02,rb  Removed dot1xEndAuthCallbackInstall() as per Gilbert's request
02a,11jun02,rb  Added direct call model for 802.1X
01z,23may02,rb  Filtered DTIM events out of warning message in intPrismShow()
01y,21may02,rb  Fixed endianness in unicast WEP key support
01x,21may02,rb  Fixed broadcast key transmission on Linksys
01w,21may02,rb  Fixed problems with the WEP keys
01v,17may02,rb  Fixed comments around unicast key support
01u,16may02,rb  Added unicast/multicast WEP key separation capability
01t,15may02,dxb  Updated comments.
01s,08may02,dxb  Removed "Connected SSID" element for 3Com from
                  intPrismShow().
01r,06may02,cjl  Added volatile to frame in ISR for Diab
01q,06may02,cjl  Changes for diab compiler
01p,06may02,rb  Fixed bug in interrupt - lastSeq used before defined
01o,06may02,rb  More comment updates
01n,06may02,rb  Fixed Diab compile problems by adding volatile static
                  variables in ISR
01m,03may02,rb  Updated comments as per doc review
01l,20apr02,ss  changed function ptr's for endian safe in/out routines
01k,16apr02,rb  Added WLAN_INT_LOCK to improve stability.
01l,18apr02,eja  Changed macro name for enabling sub-end to
                  INCLUDE_WLAN_SUBEND.
01k,16apr02,ss  changed use of pBSP in intPrismLoad
01j,10apr02,rb  Added PM indicators to show routine; cleaned up showe routine.
01i,09apr02,rb  Expanded show routine
01h,08apr02,rb  Changed EIOCSAUTHCALLBACK parameters for 802.1X group
01g,05apr02,rb  Fixed 802.1x call in ISR to use WLAN_IN_16_ENDIAN
01f,04apr02,dxb  Added Prism 3 support.
01e,03apr02,rb  Removed unnecessary intPrismReset() in intPrismStart()
01d,01apr02,rb  Put card in WLAN_STATUS_DOWN mode in intPrismStop()
01c,28mar02,rb  Fix for SPR 73754 - Stability problems under high load
01b,20mar02,rb  Modified ISR and Send routine to handle END_ERR_BLOCKED
                  correctly; updated authentication callback prototype
01a,18mar02,ss  Update show routine to identify card as Prism 2 or 2.5
Improved stability of TX data path 
02u,15feb02,rb  Fixed 802.1x in intPrismSend()
02t,12feb02,ss  Removed IMPORT of intPrismApStart
02s,08feb02,rb  Fixed bug that called access control in non-AP mode
02r,07feb02,rb  Added host-AP to show routine. Removed unneeded .h files
02q,06feb02,dxb  More changes for wlanEnd.h.
02p,05feb02,dxb  Updated to include changes to wlanEnd.h.
02o,04feb02,rb  Added support for extensible IOCTL calls
02n,30jan02,rb  Fix for SPR 71871: ifAddrSet occasionally causes page fault
02m,24jan02,rb  Removed duplicate definitions
02l,23jan02,rb  Added 802.1x extensions
02k,15jan02,rb  Speed improvement when writing/reading data - only blocks once
                 . . .
02j,20nov01,rb  Fixed endianness bug in intPrismMcastAdd(), intPrismMcastDel()
02i,12nov01,rb  Added intPrismReset() to intPrismStart for increased boot
                 stability
02h,08nov01,rb  Changed default error level to FATAL, eliminating recoverable
                 errors.
02g,05nov01,rb  Changed APIs to match file name change
02f,02nov01,dxb  Updated with new file name.
02e,25oct01,rb  Modified wlanShow to use new IOCTL EIOCGIBSSMODE.  Fixed 
                 duplicate packet bug in wlanInt().  Added authentication type
                 to show routine.
02d,18oct01,rb  Fixed bug in wlanMCastDel
02c,16oct01,rb  Changed calls to EIOCGNETNAME to EIOCGDESIREDSSID, etc
02b,21sep01,ss  Added call to handle results of a channel scan in ISR
02a,19sep01,rb  Added support for big-endian architectures - MIPs
01z,16sep01,rb  Added firmware version to show routine; check F/W on boot
01y,16sep01,rb  Fixed buffer overrun in wlanSend()
01x,14sep01,rb  Increased MTU for compatability, fixed packet length bug
01w,12sep01,rb  Fixed error in wlanMCastAdd, wlanMCastDelete
01v,11sep01,eja  Made changes to support MIPS and fixed bug with getting
                 multicast address.
01u,06sep01,rb  Fixed problems with T2.02 - replaced muxIoctl calls with
                 wlanIoctl
01t,05sep01,rb  Changed parameter to INT_CONNECT from iLevel to iVec
01s,05sep01,rb  Added flags for T2.02 compatibility
01r,05sep01,ss  Changed a call from wlanAuthenticateStation to
                 wlanStationAuthenticate, to reflect API change in wlanAp
01q,04sep01,rb  Documentation update
01p,04sep01,rb  Changed header comment to right filename
01o,30aug01,ss  In case of an Authentication Request, call
                 wlanApAuthenticateStation
01n,28aug01,rb  Debugging
01m,27aug01,rb  Fixed wlanShow to work with AP
01l,20aug01,rb  Expanded wlanShow; Implemented AP vs STA differentiation
01k,20aug01,rb  Make calls to INT_CONNECT, etc. more generic, and memory
                 accesses endian aware
01j,20aug01,rb  Temporary fix for Stormpad - include keepalive thread based on
                  CPU==ARMARCH4
01i,16aug01,rb  Added correct path to wlanEnd.h
01h,15aug01,rb  Changed to wlanEnd.c; Added 3com support
01g,15aug01,rb  Fixed wlanPollSend to work with new buffer pool
01f,19jul01,rb  Added BSS scan to wlanShow.  Modified send to use buffer pool
                Added keep-alive thread for Stormpad BSP
01e,12jul01,rb  Code review changes, uninitialized END_OBJ bug fixed
01d,22jun01,rb  Further development
01c,20jun01,rb  Resolved TX semaphore issues; added mcast and polled-mode 
01b,11jun01,rb  Re-wrote RX routine to accomodate level-sensitive interrupts
01a,29may01,rb  Created
*/

/*
DESCRIPTION

This is the main module of the WindNet 802.11b END driver.  This driver 
currently supports cards based on the PRISM-I (Agere Orinoco/WaveLan, 
3Com AirConnect, Symbol Wireless Networker), PRISM-2 (SMC 2632W, 
Linksys WPC11), PRISM-2.5 (Linksys WPC11 v2.5, Linksys WMP11) and PRISM-3 
 (Linksys WPC11 v3)  Any PCMCIA initialization required to power on
and enable the card's I/O or memory space must be completed successfully in a 
lower level driver before this module is called by muxDevLoad().

ACKNOWLEDGEMENTS
Some of the RID definition macros in intPrismHw.h are based on the Lucent 
WaveLAN/IEEE 802.11 PCMCIA driver for FreeBSD by Bill Paul, Copyright (c) 
1997, 1998, 1999 Bill Paul <[e-mail]>

END-DRIVER PARAMETERS
These parameters are passed to the intPrismLoad routine in an initialization
string of the form:
<ioBase>:<iVector>:<iLevel>:<Offset>
   baseAddr: Base address for the card. To be determined by the PCI/PCMCIA 
               module
   iVector : Interrupt vector for the card.  System dependent
   iLevel  : Interrupt level for the card.  System dependent
   offset  : a value of 2 enables word alignment.  Always set to 2 for this 
               driver


SEE ALSO
intPrismHw.c (Wind River Systems, Inc)
intPrismIoctl.c (Wind River Systems, Inc)
intPrismHw.h (Wind River Systems, Inc)
intPrismEnd.h (Wind River Systems, Inc)
Network Protocol Toolkit User's Guide (Wind River Systems, Inc)
FreeBSD Wavelan/IEEE driver
PRISM Driver Programmer's Manual (CHOICE-Intersil Corporation)
*/

#include <vxWorks.h>
#include <string.h>
#include "cacheLib.h" 
#include "intLib.h"
#include "semLib.h"
#include "logLib.h"
#include "netLib.h"
#include "stdio.h" 
#include "sysLib.h"
#include "memLib.h"

#include "end.h"			/* Common END structures. */
#include "endLib.h"
#ifdef  ETHER_MAP_IP_MULTICAST
#undef  ETHER_MAP_IP_MULTICAST
#endif
#include "etherMultiLib.h"		/* multicast stuff. */
#include "net/mbuf.h"
#include <taskLib.h>

#include "wrn/wlan/wlanEnd.h"
#include "wrn/wlan/intPrismHw.h"
#include "wrn/wlan/intPrismTertAp.h"
#include "wrn/wlan/intPrismDownload.h"

#ifdef WLANDBG
#undef LOCAL
#define LOCAL
#endif

/****************************************************************************
*  Debugging facilities - these may be enabled from the shell by changing
*  the value of WLANDebug.  Error levels are defined in wlanEnd.h
***************************************************************************/
INT32 wlanDebug = DEBUG_ERROR;

/****************************************************************************
* Local variables
***************************************************************************/
/* Pointer to a linked list of all instances of the driver */
WLAN_DEV * pWlanHead = NULL; 

/* register offset's for the MiniPCI version of Prism card's 
  (chipset ISL3874 and others) */
const WLAN_REGISTERS miniPciRegisters =
    {
    0x00, /* command */
    0x04, /* param0 */
    0x08, /* param1 */
    0x0C, /* param2 */
    0x10, /* status */
    0x14, /* resp0 */
    0x18, /* resp1 */
    0x1C, /* resp2 */
    0x20, /* infoFid */
    0x40, /* rxFid */
    0x44, /* allocFid */
    0x48, /* txCmpFid */
    0x30, /* sel0 */
    0x34, /* sel1 */
    0x38, /* off0 */
    0x3C, /* off1 */
    0x6C, /* data0 */
    0x70, /* data1 */
    0x60, /* eventStat */
    0x64, /* intEn */
    0x68, /* eventAck */
    0x50, /* sw0 */
    0x54, /* sw1 */
    0x58, /* sw2 */
    0x58, /* sw3 - does not actually exist for this card */
    0x28, /* cntl */
    0x74, /* auxPage */
    0x78, /* auxOffset */
    0x7C  /* auxData */  
    };

/* register offset's for the PCMCIA version of Prism card's 
    (chipset HFA384x and others) */
const WLAN_REGISTERS pcmciaRegisters =
    {
    0x00, /* command */
    0x02, /* param0 */
    0x04, /* param1 */
    0x06, /* param2 */
    0x08, /* status */
    0x0A, /* resp0 */
    0x0C, /* resp1 */
    0x0E, /* resp2 */
    0x10, /* infoFid */
    0x20, /* rxFid */
    0x22, /* allocFid */
    0x24, /* txCmpFid */
    0x18, /* sel0 */
    0x1A, /* sel1 */
    0x1C, /* off0 */
    0x1E, /* off1 */
    0x36, /* data0 */
    0x38, /* data1 */
    0x30, /* eventStat */
    0x32, /* intEn */
    0x34, /* eventAck */
    0x28, /* sw0 */
    0x2A, /* sw1 */
    0x2C, /* sw2 */
    0x2E, /* sw3 */
    0x14, /* cntl */
    0x3A, /* auxPage */
    0x3C, /* auxOffset */
    0x3E  /* auxData */  
    };


/***************************************************************************
* Local Prototypes
**************************************************************************/
LOCAL STATUS	intPrismStart (END_OBJ * pDrvCtrl);
STATUS	intPrismStop(END_OBJ * pDrvCtrl);
int	    intPrismIoctl(END_OBJ * pDrvCtrl, unsigned int cmd, caddr_t data);
STATUS    intPrismUnload (END_OBJ * pDrvCtrl);
LOCAL STATUS    intPrismSend (END_OBJ * pDrvCtrl, M_BLK_ID pBuf);
STATUS	intPrismMCastAdd (END_OBJ * pDrvCtrl, char * pAddress);
STATUS	intPrismMCastDel (END_OBJ * pDrvCtrl, char * pAddress);
STATUS	intPrismMCastGet (END_OBJ * pDrvCtrl,
                          MULTI_TABLE * pTable);
LOCAL STATUS    intPrismPollStart (END_OBJ * pDrvCtrl);
LOCAL STATUS    intPrismPollStop (END_OBJ * pDrvCtrl);
STATUS	intPrismPollSend (END_OBJ * pDrvCtrl, M_BLK_ID pBuf);
STATUS	intPrismPollRcv (END_OBJ * pDrvCtrl, M_BLK_ID pBuf);
LOCAL STATUS    intPrismParse (WLAN_DEV * pWlanDev, char * initString);
LOCAL STATUS    intPrismMemInit(WLAN_DEV * pWlanDev); 
STATUS    intPrismInt(WLAN_DEV * pWlanDev );
LOCAL STATUS    intPrismReceive(WLAN_DEV * pWlanDev, RX_PACKET * pData, int datalen);
WLAN_DEV * intPrismDevGet(int unitnum);
STATUS    intPrismFlags (WLAN_DEV * pWlanDev );

IMPORT int      intPrismManage (WLAN_DEV * pWlanDev, int cmd, caddr_t data );
IMPORT INT32 endMultiLstCnt (END_OBJ *);
IMPORT STATUS sysWlanCfgParamGet (UINT32 cmd, INT32 data);

#if (CPU==STRONGARM) || (CPU==XSCALE) || (CPU==ARMARCH4)
LOCAL VOID      intPrismKeepalive(WLAN_DEV * pWlanDev);
#endif


/***************************************************************************
* External references
**************************************************************************/
/* BSP specific card access routines */
IMPORT UINT8  sysWlanIOInByte        (UINT32);
IMPORT void   sysWlanIOOutByte       (UINT32, UINT8);
IMPORT UINT16 sysWlanIOInWord        (UINT32);
IMPORT void   sysWlanIOOutWord       (UINT32, UINT16);
IMPORT UINT32 sysWlanIOInLong        (UINT32);
IMPORT void   sysWlanIOOutLong       (UINT32, UINT32);
IMPORT UINT8  sysWlanMemInByte       (UINT32);
IMPORT void   sysWlanMemOutByte      (UINT32, UINT8);
IMPORT UINT16 sysWlanMemInWord       (UINT32);
IMPORT void   sysWlanMemOutWord      (UINT32, UINT16);
IMPORT UINT32 sysWlanMemInLong       (UINT32);
IMPORT void   sysWlanMemOutLong      (UINT32, UINT32);
UINT16 sysWlanMemEndianInWord        (UINT32);
void   sysWlanMemEndianOutWord       (UINT32, UINT16);
UINT16 sysWlanIOEndianInWord         (UINT32);
void   sysWlanIOEndianOutWord        (UINT32, UINT16);

/*****************************************************************************
*       Basic END functions
* These are the basic functions that are required to implement an END driver
****************************************************************************/
NET_FUNCS intPrismFuncTable = 
    {