intprismhw.c

vworks 下wlan的实现代码

/* intPrismHw.c - utility functions for WLAN driver */

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

/*
modification history
--------------------
03k,18jul03,rb  Added ARMARCH4 back to #ifdef for ARM integrator stability
                 enhancements
03j,09jul03,rb  Implemented moderated Rx buffer chaining
03i,12jun03,rb  Made stability improvements for wrSbcPxa250
03h,09may03,rb  Removed warnings caused by IPv6 integration
03g,26feb03,ss  Fixed diab compiler warnings
03f,23jul02,rb  Fixed endian bug in intPrismDisassocSend() - SPR 79998
03e,23may02,ss  removed intMask manipulation in intPrismCommandAsync
03d,21may02,ss  Add COMMAND events to intMask when using intPrismCommandAsync
03c,13may02,dxb  Removed static values for taskDelay().
03b,06may02,rb  More comment changes
03a,06may02,ss  no longer set antenna diversity rid for Symbol card
02z,03may02,rb  Fixed bug in IBSS initialization
02y,24apr02,rb  Modified intPrismBSSJoin() to send a disassociation packet to
                 old SSID
02x,24apr02,rb  Check for NULL pointer in intPrismCommand()
02w,23apr02,ss  change intPrismSymMacAddrGet from import to an equivalent
                 func. ptr
02v,10apr02,rb  Updated comments, fixed intLocks in BAPWrite
02u,08apr02,ss  Update to use WLAN_BASE_ADDR macro
02t,08apr02,rb  In command routines, must get status before acknowledging
                 command
02s,05apr02,rb  Removed debugging code
02r,05apr02,rb  Added missing intLocks in intPrismEtherWrite(), removed
                 spurious iSR call in command routines
02q,04apr02,dxb  Added Prism 3 support.
02p,01apr02,rb  Improved stability of intPrismReset() routine
02o,01apr02,rb  Modified intPrismCommand to use intPrismCommandAsync if card
                 is up - this should enahance stability by reducing intLock()
02n,28mar02,rb  Comment revisions and placed intLock() around BAP transfers
02m,22mar02,rb  Fixed bug joining BSS in AP mode (should just set OWNSSID
02l,18mar02,ss  Modified to distinguish between Prism 2 and 2.5 card types
02k,07mar02,rb  Improved stability of TX data path, removed bap1 sem 
02j,15feb02,rb  Use new firmware table in intPrismHw.h
02i,14feb02,dxb  Updated for component ID table in intPrismHw.h.
02h,14feb02,ss  return ERROR if timeout in intPrismCommand
02g,07feb02,rb  Fixed WEP and IBSS enabling
02f,06feb02,dxb  More changes for wlanEnd.h.
02e,05feb02,dxb  Updated to include changes to wlanEnd.h.
02d,15jan02,rb  Speed enhancements in WriteData, etc.  readData now uses BAP1
                 since ISR is hardcoded for BAP 0 
02c,08jan02,ss  Reconfigured levels for debug messages in intPrismCommand
02b,21dec01,rb  Fix for SPR 71834 - 3Com association problems
02b,20dec01,ss  Added support for Symbol card
02a,20dec01,rb  Modified intPrismReadData() so that OFFSET register does not
                 check ERR until BUSY clear, as per PDPv2.10
01z,11dec01,ss  Added routines for interfacing with Aux port
01y,10dec01,rb  Removed redundant code in intPrismWriteData(), made
                 intPrismBAP1Open() check both BUSY and ERR bits
01x,14nov01,rb  Added support for WLAN_DEFAULT_IBSS_MODE in intPrismInit
01w,14nov01,rb  Fix for SPR 71666 - MIPs SSID and BSSID on BSS scan
01v,12nov01,rb  Fixed bug booting 3com w/ security
01u,09nov01,rb  Removed IBSS_AUTO_START from 3COM
01t,08nov01,rb  Fixed endianness bug in intPrismStringRead (again)
01s,05nov01,rb  Changed APIs to reflect name change wlan->intPrism
01r,02nov01,dxb  Updated with new file name.
01q,25oct01,rb  Modified wlanBSSJoin to eliminate scans for Intersil cards.
01p,17oct01,rb  Fixed big endian bug in wlanRIDStringRead
01o,16oct01,rb  Changed IOCTL call in wlanInit to use new IOCTL names
01n,01oct01,rb  Changed default security settings to account for dynamic key
                 sizing
01m,19sep01,rb  Added support for big-endian architectures - MIPs
01l,16sep01,rb  Added utility to check firmware versions
01k,05sep01,rb  Documentation Update
01j,29aug01,rb  Created polled and asynchronous versions of wlanCommand
01i,21aug01,rb  Added card presence check; removed warnings
01h,20aug01,rb  Removed reference to config.h
01g,16aug01,rb  Added complete path to wlanEnd.h
01f,15aug01,rb  Changed reference to wlanEnd.h; Added support for 3com
01e,19jul01,rb  Added IBSS support for Intersil cards
01d,12jul01,rb  Changes from Code Review
01c,20jun01,rb  Implemented card differentiation
01b,11jun01,rb  Removed semaphores on BAP0
01a,29may01,rb  Created
*/

/*
DESCRIPTION
This file contains support routines for the WLAN driver by Wind River Networks.

CARD ACCESS
Data (both configuration records and packets) is mantained on the card in
buffers.  When you want to access some of this data (reading a received packet,
sending a packet, writing a config record) you have to use a Buffer Access 
Path (BAP).  Each BAP (there are two on the card) consists of a <select>
register, an <offset> register, and a <data> register.  To point the BAP at a 
structure on the card (usually a Frame ID (FID) for packets or a Record ID 
 (RID) for configuration structures) the FID or RID is written to the <select>
register.  The offset from the start of the structure (in 8-bit BYTES) is
written to the <offset> register, and then data may be transferred 16 bits at
a time to/from the <data> register for that BAP.

SEE ALSO
intPrismEnd.c
*/

#include <vxWorks.h>
#include <string.h>
#include <ioLib.h>
#include <stdio.h>
#include <logLib.h>
#include <taskLib.h>
#include <sysLib.h>
#include <intLib.h>

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

#ifdef WLNDBG
#undef LOCAL
#define LOCAL
#endif

/* Given a particular component ID, this table determines the specific
 * manufacturer and earliest firmware version supported.  The component 
 * variant value is not used at this time.  Not all component ID's have
 * been tested. USB variants are listed for completeness but are not
 * supported at this time. */  
LOCAL SUPPORTED_CARDS supportedCards[] =
    {
        {0x0001, 0x0001, WLAN_CARDTYPE_WAVELAN,  7, 52, 1,
         "Intersil Prism PCMCIA - WaveLAN"}, 

        {0x8000, 0x0001, WLAN_CARDTYPE_3COM,     2,  1, 2,
         "Intersil Prism PCMCIA/CF - 3Com/Symbol"},

        {0x8001, 0x0000, WLAN_CARDTYPE_INTERSIL_2, 0,  8, 3,
         "Intersil Prism2 PCMCIA"},

        {0x8002, 0x0000, WLAN_CARDTYPE_INTERSIL_2, 0,  8, 3,
         "Intersil Prism2 PCMCIA - LinkSys/SMC"},

        {0x8003, 0x0000, WLAN_CARDTYPE_INTERSIL_2, 0,  8, 3,
         "Intersil Prism2 PCMCIA"},

        {0x8004, 0x0000, WLAN_CARDTYPE_INTERSIL_2, 0,  8, 3,
         "Intersil Prism2 PCMCIA"},

        {0x8005, 0x0000, WLAN_CARDTYPE_INTERSIL_2, 0,  8, 3,
         "Intersil Prism2 PCMCIA"},

        {0x8006, 0x0000, WLAN_CARDTYPE_INTERSIL_2, 0,  8, 3,
         "Intersil Prism2 PCMCIA"},

        {0x8007, 0x0000, WLAN_CARDTYPE_3COM,     2,  1, 2,
         "Intersil Prism PCMCIA - 3Com"},

        {0x8008, 0x0000, WLAN_CARDTYPE_INTERSIL_2, 0,  8, 3,
         "Intersil Prism2 PCMCIA"},

        {0x8009, 0x0000, WLAN_CARDTYPE_INTERSIL_2, 0,  8, 3,
         "Intersil Prism2 PCMCIA"},

        {0x800A, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 PCMCIA"},

        {0x800B, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 PCMCIA"},

        {0x800C, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 PCMCIA"},

        {0x800D, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 PCMCIA"},

        {0x800E, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 PCMCIA"},

        {0x800F, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 USB"},

        {0x8010, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 USB"},

        {0x8011, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 USB"},

        {0x8012, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 miniPCI"},

        {0x8013, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 miniPCI"},

        {0x8014, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 miniPCI"},

        {0x8015, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 miniPCI"},

        {0x8016, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 PCI"},

        {0x8017, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 PCI"},

        {0x8018, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 PCI"},

        {0x8019, 0x0000, WLAN_CARDTYPE_INTERSIL_2_5, 1,  0, 3,
         "Intersil Prism2.5 PCI"},

        {0x801A, 0x0000, WLAN_CARDTYPE_INTERSIL_3,   1,  3, 5,
         "Intersil Prism3 PCMCIA"},

        {0x801B, 0x0000, WLAN_CARDTYPE_INTERSIL_3,   1,  3, 5,
         "Intersil Prism3 PCMCIA"},

        {0x801C, 0x0000, WLAN_CARDTYPE_INTERSIL_3,   1,  3, 5,
         "Intersil Prism3 PCMCIA"},

        {0x801D, 0x0000, WLAN_CARDTYPE_INTERSIL_3,   1,  3, 5,
         "Intersil Prism3 PCMCIA"},

        {0x801E, 0x0000, WLAN_CARDTYPE_INTERSIL_3,   1,  3, 5,
         "Intersil Prism3 USB"},

        {0x801F, 0x0000, WLAN_CARDTYPE_INTERSIL_3,   1,  3, 5,
         "Intersil Prism3 USB"},

        {0x8020, 0x0000, WLAN_CARDTYPE_INTERSIL_3,   1,  3, 5,
         "Intersil Prism3 USB"}
    };

#define CARDS_TABLE_LENGTH NELEMENTS (supportedCards)

/* Used in the diagnostics routine - this is the bit pattern sent to the NIC.
The two patterns must be 1's complement.   */
#define DIAG_PAT_0 ((UINT16)0xaaaa)
#define DIAG_PAT_1 ((UINT16)0x5555)

/* function ptr's to Symbol CF card init routines, these will be 
   set at the BSP level if Symbol CF support was included */
STATUS   (* pIntPrismSymDownload)   (WLAN_DEV *) = NULL;
UINT16 * (* pIntPrismSymMacAddrGet) (void)       = NULL;

IMPORT STATUS sysWlanCfgParamGet (UINT32 cmd, INT32 data);

LOCAL STATUS intPrismDisassocSend (WLAN_DEV * pWlanDev,UINT8 * bssid );
LOCAL STATUS intPrismKickstart(WLAN_DEV * pWlanDev);

/*****************************************************************************
* NOMANUAL
* intPrismInit - Initializes the NIC into a known state.  
*
* Initializes the card, and then runs diagnostics.  If the card fails 
* diagnostics, error is returned.
* 
* RETURNS : OK or ERROR if unable to correctly reset the card     
*
* ERRNO : N/A
*
* SEE ALSO:
*  PRISM Driver Programmer's Manual
*/
STATUS intPrismInit
    (
    WLAN_DEV *pWlanDev   /* Pointer to the device handle for this card */
    )
    {
    LTV_RECORD ltvRecord;
    int i, j;
    UINT16 wepAvail;
    int status;
    BOOL symbolCFCard = FALSE; /* indicates if the card is a Symbol CF Card */
    INT16 wepEnable;
    INT16 wepType;
    UINT8 wepKey [WLAN_WEP_MAX_KEYSIZE];
    INT16 wepKeyNumber;
    INT16 opMode;
    INT16 brateEnable;
    INT16 brates;
    INT16 txRate;
    INT16 channel;
    INT16 authType;
    INT16 pwrMan;

    if (pWlanDev == NULL)
        {
        WLAN_DEBUG(DEBUG_ERROR, ("intPrismInit: NULL pWlanDev\n")); 
        return ERROR;
        }
    
    /* Write a magic number to the Software Support register, which we can
    check at later dates to ensure card presence */
    WLAN_OUT_16(WLAN_BASE_ADDR + WLAN_SW0, WLAN_SW_MAGIC);
    
    /* Check right now.  If we can't read the number back, then the card must
       be absent */
    if (WLAN_IN_16(WLAN_BASE_ADDR + WLAN_SW0) != WLAN_SW_MAGIC)
        {
        WLAN_DEBUG(DEBUG_FATAL, ("intPrismInit: Card not found!"));
        return ERROR;
        }

    /* Initialize card.  If the card is already enabled, then this will reset
       all configuration settings to the power-on default and return the card
       to the communications disabled state. 
       
       If the INIT command fails, an attempt will be made to treat the 
       card as a FLASHless Symbol CF card (requiring a F/W download before
       initialization)
    */
    if ( intPrismCommand(pWlanDev, WLAN_CMD_INI, 0, 0, 0) == ERROR)
        {
        
        /* Perhaps it's a Symbol Wireless NetWorker, try a F/W download */
        if (pIntPrismSymDownload == NULL) 
            {            
            WLAN_DEBUG(DEBUG_INFO,
                       ("intPrismInit: Error Symbol Wireless Networker objects"
                        "not included\n"));
            return ERROR;
            }
        else 
            {
            if (pIntPrismSymDownload(pWlanDev) == ERROR)
                {
                WLAN_DEBUG(DEBUG_FATAL,
                           ("intPrismInit: Error issuing INIT command\n"));
                return ERROR;
                }
            else 
                {
                symbolCFCard = TRUE;
                }        
            }
        }
    
    if (symbolCFCard) 
        {
        /* now that the F/W is loaded to the card, try the INIT command again */
        
        if ( intPrismCommand(pWlanDev, WLAN_CMD_INI, 0, 0, 0) == ERROR) 
            {
            WLAN_DEBUG(DEBUG_FATAL,
                       ("intPrismInit: Error issuing INIT command\n"));
            return ERROR;
            }
        }
    

    WLAN_OUT_16(WLAN_BASE_ADDR + WLAN_SW0, WLAN_SW_MAGIC);    

    /* Determine the exact card type, since some of the card's behaviour is
    slightly different */
    if (intPrismNICIdentify(pWlanDev) == ERROR)
        {
        return ERROR;
        }
    
    /* Acknowledge all events, to get a clean start */
    WLAN_OUT_16(WLAN_BASE_ADDR + WLAN_EVENT_ACK, 0xffff);

    /* Run diagnostics to ensure card is up properly.  For some strange reason
    the 3COM card does not support this feature, or supports it differently*/
    if (pWlanDev->cardType != WLAN_CARDTYPE_3COM)
        {
        if (intPrismDiagnose(pWlanDev) == ERROR)
            {
            WLAN_DEBUG(DEBUG_ERROR, ("intPrismInit: Card Diagnostics "
                                     "FAILED!\n"));
            return ERROR; 
            }
        }


    if (symbolCFCard) 
        {
        UINT16 * pMacAddr = NULL;
        
        /* Set the MAC address */
        if (pIntPrismSymMacAddrGet == NULL)