prism2sta.c
/* src/prism2/driver/prism2sta.c
*
* Implements the station functionality for prism2
*
* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
* --------------------------------------------------------------------
*
* linux-wlan
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License version 2 (the "GPL"), in which
* case the provisions of the GPL are applicable instead of the
* above. If you wish to allow the use of your version of this file
* only under the terms of the GPL and not to allow others to use
* your version of this file under the MPL, indicate your decision
* by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the MPL or the GPL.
*
* --------------------------------------------------------------------
*
* Inquiries regarding the linux-wlan Open Source project can be
* made directly to:
*
* AbsoluteValue Systems Inc.
* info@linux-wlan.com
* http://www.linux-wlan.com
*
* --------------------------------------------------------------------
*
* Portions of the development of this software were funded by
* Intersil Corporation as part of PRISM(R) chipset product development.
*
* --------------------------------------------------------------------
*
* This file implements the module and linux pcmcia routines for the
* prism2 driver.
*
* --------------------------------------------------------------------
*/
/*================================================================*/
/* System Includes */
#define WLAN_DBVAR prism2_debug
#include <linux/version.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/wireless.h>
#include <linux/netdevice.h>
#include <linux/workqueue.h>
#include <asm/io.h>
#include <linux/delay.h>
#include <asm/byteorder.h>
#include <linux/if_arp.h>
#include "wlan_compat.h"
/*================================================================*/
/* Project Includes */
#include "p80211types.h"
#include "p80211hdr.h"
#include "p80211mgmt.h"
#include "p80211conv.h"
#include "p80211msg.h"
#include "p80211netdev.h"
#include "p80211req.h"
#include "p80211metadef.h"
#include "p80211metastruct.h"
#include "hfa384x.h"
#include "prism2mgmt.h"
/*================================================================*/
/* Local Constants */
/*================================================================*/
/* Local Macros */
/*================================================================*/
/* Local Types */
/*================================================================*/
/* Local Static Definitions */
static char *dev_info = "prism2_usb";
static wlandevice_t *create_wlan(void);
/*----------------------------------------------------------------*/
/* --Module Parameters */
int prism2_reset_holdtime=30; /* Reset hold time in ms */
int prism2_reset_settletime=100; /* Reset settle time in ms */
static int prism2_doreset=0; /* Do a reset at init? */
#ifdef WLAN_INCLUDE_DEBUG
int prism2_debug=0;
module_param( prism2_debug, int, 0644);
MODULE_PARM_DESC(prism2_debug, "prism2 debugging");
#endif
module_param( prism2_doreset, int, 0644);
MODULE_PARM_DESC(prism2_doreset, "Issue a reset on initialization");
module_param( prism2_reset_holdtime, int, 0644);
MODULE_PARM_DESC( prism2_reset_holdtime, "reset hold time in ms");
module_param( prism2_reset_settletime, int, 0644);
MODULE_PARM_DESC( prism2_reset_settletime, "reset settle time in ms");
MODULE_LICENSE("Dual MPL/GPL");
/*================================================================*/
/* Local Function Declarations */
static int prism2sta_open(wlandevice_t *wlandev);
static int prism2sta_close(wlandevice_t *wlandev);
static void prism2sta_reset(wlandevice_t *wlandev );
static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb, p80211_hdr_t *p80211_hdr, p80211_metawep_t *p80211_wep);
static int prism2sta_mlmerequest(wlandevice_t *wlandev, p80211msg_t *msg);
static int prism2sta_getcardinfo(wlandevice_t *wlandev);
static int prism2sta_globalsetup(wlandevice_t *wlandev);
static int prism2sta_setmulticast(wlandevice_t *wlandev,
netdevice_t *dev);
static void prism2sta_inf_handover(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
static void prism2sta_inf_tallies(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
static void prism2sta_inf_hostscanresults(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
static void prism2sta_inf_scanresults(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
static void prism2sta_inf_chinforesults(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
static void prism2sta_inf_linkstatus(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
static void prism2sta_inf_assocstatus(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
static void prism2sta_inf_authreq(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
static void prism2sta_inf_authreq_defer(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
static void prism2sta_inf_psusercnt(
wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
/*================================================================*/
/* Function Definitions */
/*----------------------------------------------------------------
* dmpmem
*
* Debug utility function to dump memory to the kernel debug log.
*
* Arguments:
* buf ptr data we want dumped
* len length of data
*
* Returns:
* nothing
* Side effects:
*
* Call context:
* process thread
* interrupt
----------------------------------------------------------------*/
inline void dmpmem(void *buf, int n)
{
int c;
for ( c= 0; c < n; c++) {
if ( (c % 16) == 0 ) printk(KERN_DEBUG"dmp[%d]: ", c);
printk("%02x ", ((u8*)buf)[c]);
if ( (c % 16) == 15 ) printk("\n");
}
if ( (c % 16) != 0 ) printk("\n");
}
/*----------------------------------------------------------------
* prism2sta_open
*
* WLAN device open method. Called from p80211netdev when kernel
* device open (start) method is called in response to the
* SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
* from clear to set.
*
* Arguments:
* wlandev wlan device structure
*
* Returns:
* 0 success
* >0 f/w reported error
* <0 driver reported error
*
* Side effects:
*
* Call context:
* process thread
----------------------------------------------------------------*/
static int prism2sta_open(wlandevice_t *wlandev)
{
DBFENTER;
/* We don't currently have to do anything else.
* The setup of the MAC should be subsequently completed via
* the mlme commands.
* Higher layers know we're ready from dev->start==1 and
* dev->tbusy==0. Our rx path knows to pass up received/
* frames because of dev->flags&IFF_UP is true.
*/
DBFEXIT;
return 0;
}
/*----------------------------------------------------------------
* prism2sta_close
*
* WLAN device close method. Called from p80211netdev when kernel
* device close method is called in response to the
* SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
* from set to clear.
*
* Arguments:
* wlandev wlan device structure
*
* Returns:
* 0 success
* >0 f/w reported error
* <0 driver reported error
*
* Side effects:
*
* Call context:
* process thread
----------------------------------------------------------------*/
static int prism2sta_close(wlandevice_t *wlandev)
{
DBFENTER;
/* We don't currently have to do anything else.
* Higher layers know we're not ready from dev->start==0 and
* dev->tbusy==1. Our rx path knows to not pass up received
* frames because of dev->flags&IFF_UP is false.
*/
DBFEXIT;
return 0;
}
/*----------------------------------------------------------------
* prism2sta_reset
*
* Not currently implented.
*
* Arguments:
* wlandev wlan device structure
* none
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* process thread
----------------------------------------------------------------*/
static void prism2sta_reset(wlandevice_t *wlandev )
{
DBFENTER;
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_txframe
*
* Takes a frame from p80211 and queues it for transmission.
*
* Arguments:
* wlandev wlan device structure
* pb packet buffer struct. Contains an 802.11
* data frame.
* p80211_hdr points to the 802.11 header for the packet.
* Returns:
* 0 Success and more buffs available
* 1 Success but no more buffs
* 2 Allocation failure
* 4 Buffer full or queue busy
*
* Side effects:
*
* Call context:
* process thread
----------------------------------------------------------------*/
static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb,
p80211_hdr_t *p80211_hdr,
p80211_metawep_t *p80211_wep)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
int result;
DBFENTER;
/* If necessary, set the 802.11 WEP bit */
if ((wlandev->hostwep & (HOSTWEP_PRIVACYINVOKED | HOSTWEP_ENCRYPT)) == HOSTWEP_PRIVACYINVOKED) {
p80211_hdr->a3.fc |= host2ieee16(WLAN_SET_FC_ISWEP(1));
}
result = hfa384x_drvr_txframe(hw, skb, p80211_hdr, p80211_wep);
DBFEXIT;
return result;
}
/*----------------------------------------------------------------
* prism2sta_mlmerequest
*
* wlan command message handler. All we do here is pass the message
* over to the prism2sta_mgmt_handler.
*
* Arguments:
* wlandev wlan device structure
* msg wlan command message
* Returns:
* 0 success
* <0 successful acceptance of message, but we're
* waiting for an async process to finish before
* we're done with the msg. When the asynch
* process is done, we'll call the p80211
* function p80211req_confirm() .
* >0 An error occurred while we were handling
* the message.
*
* Side effects:
*
* Call context:
* process thread
----------------------------------------------------------------*/
static int prism2sta_mlmerequest(wlandevice_t *wlandev, p80211msg_t *msg)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
int result = 0;
DBFENTER;
switch( msg->msgcode )
{
case DIDmsg_dot11req_mibget :
WLAN_LOG_DEBUG(2,"Received mibget request\n");
result = prism2mgmt_mibset_mibget(wlandev, msg);
break;
case DIDmsg_dot11req_mibset :
WLAN_LOG_DEBUG(2,"Received mibset request\n");
result = prism2mgmt_mibset_mibget(wlandev, msg);
break;
case DIDmsg_dot11req_scan :
WLAN_LOG_DEBUG(2,"Received scan request\n");
result = prism2mgmt_scan(wlandev, msg);
break;
case DIDmsg_dot11req_scan_results :
WLAN_LOG_DEBUG(2,"Received scan_results request\n");
result = prism2mgmt_scan_results(wlandev, msg);
break;
case DIDmsg_dot11req_start :
WLAN_LOG_DEBUG(2,"Received mlme start request\n");
result = prism2mgmt_start(wlandev, msg);
break;
/*
* Prism2 specific messages
*/
case DIDmsg_p2req_readpda :
WLAN_LOG_DEBUG(2,"Received mlme readpda request\n");
result = prism2mgmt_readpda(wlandev, msg);
break;
case DIDmsg_p2req_ramdl_state :
WLAN_LOG_DEBUG(2,"Received mlme ramdl_state request\n");
result = prism2mgmt_ramdl_state(wlandev, msg);
break;
case DIDmsg_p2req_ramdl_write :
WLAN_LOG_DEBUG(2,"Received mlme ramdl_write request\n");
result = prism2mgmt_ramdl_write(wlandev, msg);
break;
case DIDmsg_p2req_flashdl_state :
WLAN_LOG_DEBUG(2,"Received mlme flashdl_state request\n");
result = prism2mgmt_flashdl_state(wlandev, msg);
break;
case DIDmsg_p2req_flashdl_write :
WLAN_LOG_DEBUG(2,"Received mlme flashdl_write request\n");
result = prism2mgmt_flashdl_write(wlandev, msg);
break;
/*
* Linux specific messages
*/
case DIDmsg_lnxreq_hostwep :
break; // ignore me.
case DIDmsg_lnxreq_ifstate :
{
p80211msg_lnxreq_ifstate_t *ifstatemsg;
WLAN_LOG_DEBUG(2,"Received mlme ifstate request\n");
ifstatemsg = (p80211msg_lnxreq_ifstate_t*)msg;
result = prism2sta_ifstate(wlandev, ifstatemsg->ifstate.data);
ifstatemsg->resultcode.status =
P80211ENUM_msgitem_status_data_ok;
ifstatemsg->resultcode.data = result;
result = 0;
}
break;
case DIDmsg_lnxreq_wlansniff :
WLAN_LOG_DEBUG(2,"Received mlme wlansniff request\n");
result = prism2mgmt_wlansniff(wlandev, msg);
break;
case DIDmsg_lnxreq_autojoin :
WLAN_LOG_DEBUG(2,"Received mlme autojoin request\n");
result = prism2mgmt_autojoin(wlandev, msg);
break;
case DIDmsg_lnxreq_commsquality: {
p80211msg_lnxreq_commsquality_t *qualmsg;
WLAN_LOG_DEBUG(2,"Received commsquality request\n");
qualmsg = (p80211msg_lnxreq_commsquality_t*) msg;
qualmsg->link.status = P80211ENUM_msgitem_status_data_ok;
qualmsg->level.status = P80211ENUM_msgitem_status_data_ok;
qualmsg->noise.status = P80211ENUM_msgitem_status_data_ok;
qualmsg->link.data = hfa384x2host_16(hw->qual.CQ_currBSS);
qualmsg->level.data = hfa384x2host_16(hw->qual.ASL_currBSS);
qualmsg->noise.data = hfa384x2host_16(hw->qual.ANL_currFC);
break;
}
default:
WLAN_LOG_WARNING("Unknown mgmt request message 0x%08x", msg->msgcode);
break;
}
DBFEXIT;
return result;
}
/*----------------------------------------------------------------
* prism2sta_ifstate
*
* Interface state. This is the primary WLAN interface enable/disable
* handler. Following the driver/load/deviceprobe sequence, this
* function must be called with a state of "enable" before any other
* commands will be accepted.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* A p80211 message resultcode value.
*
* Side effects:
*
* Call context:
* process thread (usually)
* interrupt
----------------------------------------------------------------*/
u32 prism2sta_ifstate(wlandevice_t *wlandev, u32 ifstate)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
u32 result;
DBFENTER;
result = P80211ENUM_resultcode_implementation_failure;
WLAN_LOG_DEBUG(2, "Current MSD state(%d), requesting(%d)\n",
wlandev->msdstate, ifstate);
switch (ifstate)
{
case P80211ENUM_ifstate_fwload:
switch (wlandev->msdstate) {
case WLAN_MSD_HWPRESENT:
wlandev->msdstate = WLAN_MSD_FWLOAD_PENDING;
/*
* Initialize the device+driver sufficiently
* for firmware loading.
*/
if ((result=hfa384x_drvr_start(hw))) {
WLAN_LOG_ERROR(
"hfa384x_drvr_start() failed,"
"result=%d\n", (int)result);
result =
P80211ENUM_resultcode_implementation_failure;
wlandev->msdstate = WLAN_MSD_HWPRESENT;
break;
}
wlandev->msdstate = WLAN_MSD_FWLOAD;
result = P80211ENUM_resultcode_success;
break;
case WLAN_MSD_FWLOAD:
hfa384x_cmd_initialize(hw);
result = P80211ENUM_resultcode_success;
break;
case WLAN_MSD_RUNNING:
WLAN_LOG_WARNING(
"Cannot enter fwload state from enable state,"
"you must disable first.\n");
result = P80211ENUM_resultcode_invalid_parameters;
break;
case WLAN_MSD_HWFAIL:
default:
/* probe() had a problem or the msdstate contains
* an unrecognized value, there's nothing we can do.
*/
result = P80211ENUM_resultcode_implementation_failure;
break;
}
break;
case P80211ENUM_ifstate_enable:
switch (wlandev->msdstate) {
case WLAN_MSD_HWPRESENT:
case WLAN_MSD_FWLOAD:
wlandev->msdstate = WLAN_MSD_RUNNING_PENDING;
/* Initialize the device+driver for full
* operation. Note that this might me an FWLOAD to
* to RUNNING transition so we must not do a chip
* or board level reset. Note that on failure,
* the MSD state is set to HWPRESENT because we
* can't make any assumptions about the state
* of the hardware or a previous firmware load.
*/
if ((result=hfa384x_drvr_start(hw))) {
WLAN_LOG_ERROR(
"hfa384x_drvr_start() failed,"
"result=%d\n", (int)result);
result =
P80211ENUM_resultcode_implementation_failure;
wlandev->msdstate = WLAN_MSD_HWPRESENT;
break;
}
if ((result=prism2sta_getcardinfo(wlandev))) {
WLAN_LOG_ERROR(
"prism2sta_getcardinfo() failed,"
"result=%d\n", (int)result);
result =
P80211ENUM_resultcode_implementation_failure;
hfa384x_drvr_stop(hw);
wlandev->msdstate = WLAN_MSD_HWPRESENT;
break;
}
if ((result=prism2sta_globalsetup(wlandev))) {
WLAN_LOG_ERROR(
"prism2sta_globalsetup() failed,"
"result=%d\n", (int)result);
result =
P80211ENUM_resultcode_implementation_failure;
hfa384x_drvr_stop(hw);
wlandev->msdstate = WLAN_MSD_HWPRESENT;
break;
}
wlandev->msdstate = WLAN_MSD_RUNNING;
hw->join_ap = 0;
hw->join_retries = 60;
result = P80211ENUM_resultcode_success;
break;
case WLAN_MSD_RUNNING:
/* Do nothing, we're already in this state.*/
result = P80211ENUM_resultcode_success;
break;
case WLAN_MSD_HWFAIL:
default:
/* probe() had a problem or the msdstate contains
* an unrecognized value, there's nothing we can do.
*/
result = P80211ENUM_resultcode_implementation_failure;
break;
}
break;
case P80211ENUM_ifstate_disable:
switch (wlandev->msdstate) {
case WLAN_MSD_HWPRESENT:
/* Do nothing, we're already in this state.*/
result = P80211ENUM_resultcode_success;
break;
case WLAN_MSD_FWLOAD:
case WLAN_MSD_RUNNING:
wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
/*
* TODO: Shut down the MAC completely. Here a chip
* or board level reset is probably called for.
* After a "disable" _all_ results are lost, even
* those from a fwload.
*/
if (!wlandev->hwremoved)
netif_carrier_off(wlandev->netdev);
hfa384x_drvr_stop(hw);
wlandev->macmode = WLAN_MACMODE_NONE;
wlandev->msdstate = WLAN_MSD_HWPRESENT;
result = P80211ENUM_resultcode_success;
break;
case WLAN_MSD_HWFAIL:
default:
/* probe() had a problem or the msdstate contains
* an unrecognized value, there's nothing we can do.
*/
result = P80211ENUM_resultcode_implementation_failure;
break;
}
break;
default:
result = P80211ENUM_resultcode_invalid_parameters;
break;
}
DBFEXIT;
return result;
}
/*----------------------------------------------------------------
* prism2sta_getcardinfo
*
* Collect the NICID, firmware version and any other identifiers
* we'd like to have in host-side data structures.
*
* Arguments:
* wlandev wlan device structure
*
* Returns:
* 0 success
* >0 f/w reported error
* <0 driver reported error
*
* Side effects:
*
* Call context:
* Either.
----------------------------------------------------------------*/
static int prism2sta_getcardinfo(wlandevice_t *wlandev)
{
int result = 0;
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
u16 temp;
u8 snum[HFA384x_RID_NICSERIALNUMBER_LEN];
char pstr[(HFA384x_RID_NICSERIALNUMBER_LEN * 4) + 1];
DBFENTER;
/* Collect version and compatibility info */
/* Some are critical, some are not */
/* NIC identity */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICIDENTITY,
&hw->ident_nic, sizeof(hfa384x_compident_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve NICIDENTITY\n");
goto failed;
}
/* get all the nic id fields in host byte order */
hw->ident_nic.id = hfa384x2host_16(hw->ident_nic.id);
hw->ident_nic.variant = hfa384x2host_16(hw->ident_nic.variant);
hw->ident_nic.major = hfa384x2host_16(hw->ident_nic.major);
hw->ident_nic.minor = hfa384x2host_16(hw->ident_nic.minor);
WLAN_LOG_INFO( "ident: nic h/w: id=0x%02x %d.%d.%d\n",
hw->ident_nic.id, hw->ident_nic.major,
hw->ident_nic.minor, hw->ident_nic.variant);
/* Primary f/w identity */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRIIDENTITY,
&hw->ident_pri_fw, sizeof(hfa384x_compident_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve PRIIDENTITY\n");
goto failed;
}
/* get all the private fw id fields in host byte order */
hw->ident_pri_fw.id = hfa384x2host_16(hw->ident_pri_fw.id);
hw->ident_pri_fw.variant = hfa384x2host_16(hw->ident_pri_fw.variant);
hw->ident_pri_fw.major = hfa384x2host_16(hw->ident_pri_fw.major);
hw->ident_pri_fw.minor = hfa384x2host_16(hw->ident_pri_fw.minor);
WLAN_LOG_INFO( "ident: pri f/w: id=0x%02x %d.%d.%d\n",
hw->ident_pri_fw.id, hw->ident_pri_fw.major,
hw->ident_pri_fw.minor, hw->ident_pri_fw.variant);
/* Station (Secondary?) f/w identity */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STAIDENTITY,
&hw->ident_sta_fw, sizeof(hfa384x_compident_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve STAIDENTITY\n");
goto failed;
}
if (hw->ident_nic.id < 0x8000) {
WLAN_LOG_ERROR("FATAL: Card is not an Intersil Prism2/2.5/3\n");
result = -1;
goto failed;
}
/* get all the station fw id fields in host byte order */
hw->ident_sta_fw.id = hfa384x2host_16(hw->ident_sta_fw.id);
hw->ident_sta_fw.variant = hfa384x2host_16(hw->ident_sta_fw.variant);
hw->ident_sta_fw.major = hfa384x2host_16(hw->ident_sta_fw.major);
hw->ident_sta_fw.minor = hfa384x2host_16(hw->ident_sta_fw.minor);
/* strip out the 'special' variant bits */
hw->mm_mods = hw->ident_sta_fw.variant & (BIT14 | BIT15);
hw->ident_sta_fw.variant &= ~((u16)(BIT14 | BIT15));
if ( hw->ident_sta_fw.id == 0x1f ) {
WLAN_LOG_INFO(
"ident: sta f/w: id=0x%02x %d.%d.%d\n",
hw->ident_sta_fw.id, hw->ident_sta_fw.major,
hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
} else {
WLAN_LOG_INFO(
"ident: ap f/w: id=0x%02x %d.%d.%d\n",
hw->ident_sta_fw.id, hw->ident_sta_fw.major,
hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
WLAN_LOG_ERROR("Unsupported Tertiary AP firmeare loaded!\n");
goto failed;
}
/* Compatibility range, Modem supplier */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_MFISUPRANGE,
&hw->cap_sup_mfi, sizeof(hfa384x_caplevel_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve MFISUPRANGE\n");
goto failed;
}
/* get all the Compatibility range, modem interface supplier
fields in byte order */
hw->cap_sup_mfi.role = hfa384x2host_16(hw->cap_sup_mfi.role);
hw->cap_sup_mfi.id = hfa384x2host_16(hw->cap_sup_mfi.id);
hw->cap_sup_mfi.variant = hfa384x2host_16(hw->cap_sup_mfi.variant);
hw->cap_sup_mfi.bottom = hfa384x2host_16(hw->cap_sup_mfi.bottom);
hw->cap_sup_mfi.top = hfa384x2host_16(hw->cap_sup_mfi.top);
WLAN_LOG_INFO(
"MFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
hw->cap_sup_mfi.role, hw->cap_sup_mfi.id,
hw->cap_sup_mfi.variant, hw->cap_sup_mfi.bottom,
hw->cap_sup_mfi.top);
/* Compatibility range, Controller supplier */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CFISUPRANGE,
&hw->cap_sup_cfi, sizeof(hfa384x_caplevel_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve CFISUPRANGE\n");
goto failed;
}
/* get all the Compatibility range, controller interface supplier
fields in byte order */
hw->cap_sup_cfi.role = hfa384x2host_16(hw->cap_sup_cfi.role);
hw->cap_sup_cfi.id = hfa384x2host_16(hw->cap_sup_cfi.id);
hw->cap_sup_cfi.variant = hfa384x2host_16(hw->cap_sup_cfi.variant);
hw->cap_sup_cfi.bottom = hfa384x2host_16(hw->cap_sup_cfi.bottom);
hw->cap_sup_cfi.top = hfa384x2host_16(hw->cap_sup_cfi.top);
WLAN_LOG_INFO(
"CFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
hw->cap_sup_cfi.role, hw->cap_sup_cfi.id,
hw->cap_sup_cfi.variant, hw->cap_sup_cfi.bottom,
hw->cap_sup_cfi.top);
/* Compatibility range, Primary f/w supplier */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRISUPRANGE,
&hw->cap_sup_pri, sizeof(hfa384x_caplevel_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve PRISUPRANGE\n");
goto failed;
}
/* get all the Compatibility range, primary firmware supplier
fields in byte order */
hw->cap_sup_pri.role = hfa384x2host_16(hw->cap_sup_pri.role);
hw->cap_sup_pri.id = hfa384x2host_16(hw->cap_sup_pri.id);
hw->cap_sup_pri.variant = hfa384x2host_16(hw->cap_sup_pri.variant);
hw->cap_sup_pri.bottom = hfa384x2host_16(hw->cap_sup_pri.bottom);
hw->cap_sup_pri.top = hfa384x2host_16(hw->cap_sup_pri.top);
WLAN_LOG_INFO(
"PRI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
hw->cap_sup_pri.role, hw->cap_sup_pri.id,
hw->cap_sup_pri.variant, hw->cap_sup_pri.bottom,
hw->cap_sup_pri.top);
/* Compatibility range, Station f/w supplier */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STASUPRANGE,
&hw->cap_sup_sta, sizeof(hfa384x_caplevel_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve STASUPRANGE\n");
goto failed;
}
/* get all the Compatibility range, station firmware supplier
fields in byte order */
hw->cap_sup_sta.role = hfa384x2host_16(hw->cap_sup_sta.role);
hw->cap_sup_sta.id = hfa384x2host_16(hw->cap_sup_sta.id);
hw->cap_sup_sta.variant = hfa384x2host_16(hw->cap_sup_sta.variant);
hw->cap_sup_sta.bottom = hfa384x2host_16(hw->cap_sup_sta.bottom);
hw->cap_sup_sta.top = hfa384x2host_16(hw->cap_sup_sta.top);
if ( hw->cap_sup_sta.id == 0x04 ) {
WLAN_LOG_INFO(
"STA:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
hw->cap_sup_sta.role, hw->cap_sup_sta.id,
hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
hw->cap_sup_sta.top);
} else {
WLAN_LOG_INFO(
"AP:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
hw->cap_sup_sta.role, hw->cap_sup_sta.id,
hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
hw->cap_sup_sta.top);
}
/* Compatibility range, primary f/w actor, CFI supplier */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRI_CFIACTRANGES,
&hw->cap_act_pri_cfi, sizeof(hfa384x_caplevel_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve PRI_CFIACTRANGES\n");
goto failed;
}
/* get all the Compatibility range, primary f/w actor, CFI supplier
fields in byte order */
hw->cap_act_pri_cfi.role = hfa384x2host_16(hw->cap_act_pri_cfi.role);
hw->cap_act_pri_cfi.id = hfa384x2host_16(hw->cap_act_pri_cfi.id);
hw->cap_act_pri_cfi.variant = hfa384x2host_16(hw->cap_act_pri_cfi.variant);
hw->cap_act_pri_cfi.bottom = hfa384x2host_16(hw->cap_act_pri_cfi.bottom);
hw->cap_act_pri_cfi.top = hfa384x2host_16(hw->cap_act_pri_cfi.top);
WLAN_LOG_INFO(
"PRI-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
hw->cap_act_pri_cfi.role, hw->cap_act_pri_cfi.id,
hw->cap_act_pri_cfi.variant, hw->cap_act_pri_cfi.bottom,
hw->cap_act_pri_cfi.top);
/* Compatibility range, sta f/w actor, CFI supplier */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_CFIACTRANGES,
&hw->cap_act_sta_cfi, sizeof(hfa384x_caplevel_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve STA_CFIACTRANGES\n");
goto failed;
}
/* get all the Compatibility range, station f/w actor, CFI supplier
fields in byte order */
hw->cap_act_sta_cfi.role = hfa384x2host_16(hw->cap_act_sta_cfi.role);
hw->cap_act_sta_cfi.id = hfa384x2host_16(hw->cap_act_sta_cfi.id);
hw->cap_act_sta_cfi.variant = hfa384x2host_16(hw->cap_act_sta_cfi.variant);
hw->cap_act_sta_cfi.bottom = hfa384x2host_16(hw->cap_act_sta_cfi.bottom);
hw->cap_act_sta_cfi.top = hfa384x2host_16(hw->cap_act_sta_cfi.top);
WLAN_LOG_INFO(
"STA-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
hw->cap_act_sta_cfi.role, hw->cap_act_sta_cfi.id,
hw->cap_act_sta_cfi.variant, hw->cap_act_sta_cfi.bottom,
hw->cap_act_sta_cfi.top);
/* Compatibility range, sta f/w actor, MFI supplier */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_MFIACTRANGES,
&hw->cap_act_sta_mfi, sizeof(hfa384x_caplevel_t));
if ( result ) {
WLAN_LOG_ERROR("Failed to retrieve STA_MFIACTRANGES\n");
goto failed;
}
/* get all the Compatibility range, station f/w actor, MFI supplier
fields in byte order */
hw->cap_act_sta_mfi.role = hfa384x2host_16(hw->cap_act_sta_mfi.role);
hw->cap_act_sta_mfi.id = hfa384x2host_16(hw->cap_act_sta_mfi.id);
hw->cap_act_sta_mfi.variant = hfa384x2host_16(hw->cap_act_sta_mfi.variant);
hw->cap_act_sta_mfi.bottom = hfa384x2host_16(hw->cap_act_sta_mfi.bottom);
hw->cap_act_sta_mfi.top = hfa384x2host_16(hw->cap_act_sta_mfi.top);
WLAN_LOG_INFO(
"STA-MFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
hw->cap_act_sta_mfi.role, hw->cap_act_sta_mfi.id,
hw->cap_act_sta_mfi.variant, hw->cap_act_sta_mfi.bottom,
hw->cap_act_sta_mfi.top);
/* Serial Number */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICSERIALNUMBER,
snum, HFA384x_RID_NICSERIALNUMBER_LEN);
if ( !result ) {
wlan_mkprintstr(snum, HFA384x_RID_NICSERIALNUMBER_LEN,
pstr, sizeof(pstr));
WLAN_LOG_INFO("Prism2 card SN: %s\n", pstr);
} else {
WLAN_LOG_ERROR("Failed to retrieve Prism2 Card SN\n");
goto failed;
}
/* Collect the MAC address */
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CNFOWNMACADDR,
wlandev->netdev->dev_addr, WLAN_ADDR_LEN);
if ( result != 0 ) {
WLAN_LOG_ERROR("Failed to retrieve mac address\n");
goto failed;
}
/* short preamble is always implemented */
wlandev->nsdcaps |= P80211_NSDCAP_SHORT_PREAMBLE;
/* find out if hardware wep is implemented */
hfa384x_drvr_getconfig16(hw, HFA384x_RID_PRIVACYOPTIMP, &temp);
if (temp)
wlandev->nsdcaps |= P80211_NSDCAP_HARDWAREWEP;
/* get the dBm Scaling constant */
hfa384x_drvr_getconfig16(hw, HFA384x_RID_CNFDBMADJUST, &temp);
hw->dbmadjust = temp;
/* Only enable scan by default on newer firmware */
if (HFA384x_FIRMWARE_VERSION(hw->ident_sta_fw.major,
hw->ident_sta_fw.minor,
hw->ident_sta_fw.variant) <
HFA384x_FIRMWARE_VERSION(1,5,5)) {
wlandev->nsdcaps |= P80211_NSDCAP_NOSCAN;
}
/* TODO: Set any internally managed config items */
goto done;
failed:
WLAN_LOG_ERROR("Failed, result=%d\n", result);
done:
DBFEXIT;
return result;
}
/*----------------------------------------------------------------
* prism2sta_globalsetup
*
* Set any global RIDs that we want to set at device activation.
*
* Arguments:
* wlandev wlan device structure
*
* Returns:
* 0 success
* >0 f/w reported error
* <0 driver reported error
*
* Side effects:
*
* Call context:
* process thread
----------------------------------------------------------------*/
static int prism2sta_globalsetup(wlandevice_t *wlandev)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
/* Set the maximum frame size */
return hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFMAXDATALEN,
WLAN_DATA_MAXLEN);
}
static int prism2sta_setmulticast(wlandevice_t *wlandev, netdevice_t *dev)
{
int result = 0;
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
u16 promisc;
DBFENTER;
/* If we're not ready, what's the point? */
if ( hw->state != HFA384x_STATE_RUNNING )
goto exit;
if ( (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0 )
promisc = P80211ENUM_truth_true;
else
promisc = P80211ENUM_truth_false;
result = hfa384x_drvr_setconfig16_async(hw, HFA384x_RID_PROMISCMODE, promisc);
/* XXX TODO: configure the multicast list */
// CLEAR_HW_MULTICAST_LIST
// struct dev_mc_list element = dev->mc_list;
// while (element != null) {
// HW_ADD_MULTICAST_ADDR(element->dmi_addr, dmi_addrlen)
// element = element->next;
// }
exit:
DBFEXIT;
return result;
}
/*----------------------------------------------------------------
* prism2sta_inf_handover
*
* Handles the receipt of a Handover info frame. Should only be present
* in APs only.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to info frame (contents in hfa384x order)
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
static void prism2sta_inf_handover(wlandevice_t *wlandev, hfa384x_InfFrame_t *inf)
{
DBFENTER;
WLAN_LOG_DEBUG(2,"received infoframe:HANDOVER (unhandled)\n");
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_inf_tallies
*
* Handles the receipt of a CommTallies info frame.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to info frame (contents in hfa384x order)
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
static void prism2sta_inf_tallies(wlandevice_t *wlandev, hfa384x_InfFrame_t *inf)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
u16 *src16;
u32 *dst;
u32 *src32;
int i;
int cnt;
DBFENTER;
/*
** Determine if these are 16-bit or 32-bit tallies, based on the
** record length of the info record.
*/
cnt = sizeof(hfa384x_CommTallies32_t) / sizeof(u32);
if (inf->framelen > 22) {
dst = (u32 *) &hw->tallies;
src32 = (u32 *) &inf->info.commtallies32;
for (i = 0; i < cnt; i++, dst++, src32++)
*dst += hfa384x2host_32(*src32);
} else {
dst = (u32 *) &hw->tallies;
src16 = (u16 *) &inf->info.commtallies16;
for (i = 0; i < cnt; i++, dst++, src16++)
*dst += hfa384x2host_16(*src16);
}
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_inf_scanresults
*
* Handles the receipt of a Scan Results info frame.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to info frame (contents in hfa384x order)
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
static void prism2sta_inf_scanresults(wlandevice_t *wlandev,
hfa384x_InfFrame_t *inf)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
int nbss;
hfa384x_ScanResult_t *sr = &(inf->info.scanresult);
int i;
hfa384x_JoinRequest_data_t joinreq;
int result;
DBFENTER;
/* Get the number of results, first in bytes, then in results */
nbss = (inf->framelen * sizeof(u16)) -
sizeof(inf->infotype) -
sizeof(inf->info.scanresult.scanreason);
nbss /= sizeof(hfa384x_ScanResultSub_t);
/* Print em */
WLAN_LOG_DEBUG(1,"rx scanresults, reason=%d, nbss=%d:\n",
inf->info.scanresult.scanreason, nbss);
for ( i = 0; i < nbss; i++) {
WLAN_LOG_DEBUG(1, "chid=%d anl=%d sl=%d bcnint=%d\n",
sr->result[i].chid,
sr->result[i].anl,
sr->result[i].sl,
sr->result[i].bcnint);
WLAN_LOG_DEBUG(1, " capinfo=0x%04x proberesp_rate=%d\n",
sr->result[i].capinfo,
sr->result[i].proberesp_rate);
}
/* issue a join request */
joinreq.channel = sr->result[0].chid;
memcpy( joinreq.bssid, sr->result[0].bssid, WLAN_BSSID_LEN);
result = hfa384x_drvr_setconfig( hw,
HFA384x_RID_JOINREQUEST,
&joinreq, HFA384x_RID_JOINREQUEST_LEN);
if (result) {
WLAN_LOG_ERROR("setconfig(joinreq) failed, result=%d\n", result);
}
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_inf_hostscanresults
*
* Handles the receipt of a Scan Results info frame.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to info frame (contents in hfa384x order)
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
static void prism2sta_inf_hostscanresults(wlandevice_t *wlandev,
hfa384x_InfFrame_t *inf)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
int nbss;
DBFENTER;
nbss = (inf->framelen - 3) / 32;
WLAN_LOG_DEBUG(1, "Received %d hostscan results\n", nbss);
if (nbss > 32)
nbss = 32;
if (hw->scanresults)
kfree(hw->scanresults);
hw->scanresults = kmalloc(sizeof(hfa384x_InfFrame_t), GFP_ATOMIC);
memcpy(hw->scanresults, inf, sizeof(hfa384x_InfFrame_t));
if (nbss == 0)
nbss = -1;
/* Notify/wake the sleeping caller. */
hw->scanflag = nbss;
wake_up_interruptible(&hw->cmdq);
DBFEXIT;
};
/*----------------------------------------------------------------
* prism2sta_inf_chinforesults
*
* Handles the receipt of a Channel Info Results info frame.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to info frame (contents in hfa384x order)
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
static void prism2sta_inf_chinforesults(wlandevice_t *wlandev,
hfa384x_InfFrame_t *inf)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
unsigned int i, n;
DBFENTER;
hw->channel_info.results.scanchannels =
hfa384x2host_16(inf->info.chinforesult.scanchannels);
#if 0
memcpy(&inf->info.chinforesult, &hw->channel_info.results, sizeof(hfa384x_ChInfoResult_t));
#endif
for (i=0, n=0; i<HFA384x_CHINFORESULT_MAX; i++) {
if (hw->channel_info.results.scanchannels & (1<<i)) {
int channel=hfa384x2host_16(inf->info.chinforesult.result[n].chid)-1;
hfa384x_ChInfoResultSub_t *chinforesult=&hw->channel_info.results.result[channel];
chinforesult->chid = channel;
chinforesult->anl = hfa384x2host_16(inf->info.chinforesult.result[n].anl);
chinforesult->pnl = hfa384x2host_16(inf->info.chinforesult.result[n].pnl);
chinforesult->active = hfa384x2host_16(inf->info.chinforesult.result[n].active);
WLAN_LOG_DEBUG(2, "chinfo: channel %d, %s level (avg/peak)=%d/%d dB, pcf %d\n",
channel+1,
chinforesult->active &
HFA384x_CHINFORESULT_BSSACTIVE ? "signal" : "noise",
chinforesult->anl, chinforesult->pnl,
chinforesult->active & HFA384x_CHINFORESULT_PCFACTIVE ? 1 : 0
);
n++;
}
}
atomic_set(&hw->channel_info.done, 2);
hw->channel_info.count = n;
DBFEXIT;
return;
}
void prism2sta_processing_defer(struct work_struct *data)
{
hfa384x_t *hw = container_of(data, struct hfa384x, link_bh);
wlandevice_t *wlandev = hw->wlandev;
hfa384x_bytestr32_t ssid;
int result;
DBFENTER;
/* First let's process the auth frames */
{
struct sk_buff *skb;
hfa384x_InfFrame_t *inf;
while ( (skb = skb_dequeue(&hw->authq)) ) {
inf = (hfa384x_InfFrame_t *) skb->data;
prism2sta_inf_authreq_defer(wlandev, inf);
}
}
/* Now let's handle the linkstatus stuff */
if (hw->link_status == hw->link_status_new)
goto failed;
hw->link_status = hw->link_status_new;
switch(hw->link_status) {
case HFA384x_LINK_NOTCONNECTED:
/* I'm currently assuming that this is the initial link
* state. It should only be possible immediately
* following an Enable command.
* Response:
* Block Transmits, Ignore receives of data frames
*/
netif_carrier_off(wlandev->netdev);
WLAN_LOG_INFO("linkstatus=NOTCONNECTED (unhandled)\n");
break;
case HFA384x_LINK_CONNECTED:
/* This one indicates a successful scan/join/auth/assoc.
* When we have the full MLME complement, this event will
* signify successful completion of both mlme_authenticate
* and mlme_associate. State management will get a little
* ugly here.
* Response:
* Indicate authentication and/or association
* Enable Transmits, Receives and pass up data frames
*/
netif_carrier_on(wlandev->netdev);
/* If we are joining a specific AP, set our state and reset retries */
if(hw->join_ap == 1)
hw->join_ap = 2;
hw->join_retries = 60;
/* Don't call this in monitor mode */
if ( wlandev->netdev->type == ARPHRD_ETHER ) {
u16 portstatus;
WLAN_LOG_INFO("linkstatus=CONNECTED\n");
/* For non-usb devices, we can use the sync versions */
/* Collect the BSSID, and set state to allow tx */
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTBSSID,
wlandev->bssid, WLAN_BSSID_LEN);
if ( result ) {
WLAN_LOG_DEBUG(1,
"getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTBSSID, result);
goto failed;
}
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTSSID,
&ssid, sizeof(ssid));
if ( result ) {
WLAN_LOG_DEBUG(1,
"getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTSSID, result);
goto failed;
}
prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *)&ssid,
(p80211pstrd_t *) &wlandev->ssid);
/* Collect the port status */
result = hfa384x_drvr_getconfig16(hw,
HFA384x_RID_PORTSTATUS, &portstatus);
if ( result ) {
WLAN_LOG_DEBUG(1,
"getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_PORTSTATUS, result);
goto failed;
}
wlandev->macmode =
(portstatus == HFA384x_PSTATUS_CONN_IBSS) ?
WLAN_MACMODE_IBSS_STA : WLAN_MACMODE_ESS_STA;
/* Get the ball rolling on the comms quality stuff */
prism2sta_commsqual_defer(&hw->commsqual_bh);
}
break;
case HFA384x_LINK_DISCONNECTED:
/* This one indicates that our association is gone. We've
* lost connection with the AP and/or been disassociated.
* This indicates that the MAC has completely cleared it's
* associated state. We * should send a deauth indication
* (implying disassoc) up * to the MLME.
* Response:
* Indicate Deauthentication
* Block Transmits, Ignore receives of data frames
*/
if(hw->join_ap == 2)
{
hfa384x_JoinRequest_data_t joinreq;
joinreq = hw->joinreq;
/* Send the join request */
hfa384x_drvr_setconfig( hw,
HFA384x_RID_JOINREQUEST,
&joinreq, HFA384x_RID_JOINREQUEST_LEN);
WLAN_LOG_INFO("linkstatus=DISCONNECTED (re-submitting join)\n");
} else {
if (wlandev->netdev->type == ARPHRD_ETHER)
WLAN_LOG_INFO("linkstatus=DISCONNECTED (unhandled)\n");
}
wlandev->macmode = WLAN_MACMODE_NONE;
netif_carrier_off(wlandev->netdev);
break;
case HFA384x_LINK_AP_CHANGE:
/* This one indicates that the MAC has decided to and
* successfully completed a change to another AP. We
* should probably implement a reassociation indication
* in response to this one. I'm thinking that the the
* p80211 layer needs to be notified in case of
* buffering/queueing issues. User mode also needs to be
* notified so that any BSS dependent elements can be
* updated.
* associated state. We * should send a deauth indication
* (implying disassoc) up * to the MLME.
* Response:
* Indicate Reassociation
* Enable Transmits, Receives and pass up data frames
*/
WLAN_LOG_INFO("linkstatus=AP_CHANGE\n");
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTBSSID,
wlandev->bssid, WLAN_BSSID_LEN);
if ( result ) {
WLAN_LOG_DEBUG(1,
"getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTBSSID, result);
goto failed;
}
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTSSID,
&ssid, sizeof(ssid));
if ( result ) {
WLAN_LOG_DEBUG(1,
"getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTSSID, result);
goto failed;
}
prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *)&ssid,
(p80211pstrd_t *) &wlandev->ssid);
hw->link_status = HFA384x_LINK_CONNECTED;
netif_carrier_on(wlandev->netdev);
break;
case HFA384x_LINK_AP_OUTOFRANGE:
/* This one indicates that the MAC has decided that the
* AP is out of range, but hasn't found a better candidate
* so the MAC maintains its "associated" state in case
* we get back in range. We should block transmits and
* receives in this state. Do we need an indication here?
* Probably not since a polling user-mode element would
* get this status from from p2PortStatus(FD40). What about
* p80211?
* Response:
* Block Transmits, Ignore receives of data frames
*/
WLAN_LOG_INFO("linkstatus=AP_OUTOFRANGE (unhandled)\n");
netif_carrier_off(wlandev->netdev);
break;
case HFA384x_LINK_AP_INRANGE:
/* This one indicates that the MAC has decided that the
* AP is back in range. We continue working with our
* existing association.
* Response:
* Enable Transmits, Receives and pass up data frames
*/
WLAN_LOG_INFO("linkstatus=AP_INRANGE\n");
hw->link_status = HFA384x_LINK_CONNECTED;
netif_carrier_on(wlandev->netdev);
break;
case HFA384x_LINK_ASSOCFAIL:
/* This one is actually a peer to CONNECTED. We've
* requested a join for a given SSID and optionally BSSID.
* We can use this one to indicate authentication and
* association failures. The trick is going to be
* 1) identifying the failure, and 2) state management.
* Response:
* Disable Transmits, Ignore receives of data frames
*/
if(hw->join_ap && --hw->join_retries > 0)
{
hfa384x_JoinRequest_data_t joinreq;
joinreq = hw->joinreq;
/* Send the join request */
hfa384x_drvr_setconfig( hw,
HFA384x_RID_JOINREQUEST,
&joinreq, HFA384x_RID_JOINREQUEST_LEN);
WLAN_LOG_INFO("linkstatus=ASSOCFAIL (re-submitting join)\n");
} else {
WLAN_LOG_INFO("linkstatus=ASSOCFAIL (unhandled)\n");
}
netif_carrier_off(wlandev->netdev);
break;
default:
/* This is bad, IO port problems? */
WLAN_LOG_WARNING(
"unknown linkstatus=0x%02x\n", hw->link_status);
goto failed;
break;
}
wlandev->linkstatus = (hw->link_status == HFA384x_LINK_CONNECTED);
#ifdef WIRELESS_EXT
p80211wext_event_associated(wlandev, wlandev->linkstatus);
#endif
failed:
DBFEXIT;
}
/*----------------------------------------------------------------
* prism2sta_inf_linkstatus
*
* Handles the receipt of a Link Status info frame.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to info frame (contents in hfa384x order)
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
static void prism2sta_inf_linkstatus(wlandevice_t *wlandev,
hfa384x_InfFrame_t *inf)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
DBFENTER;
hw->link_status_new = hfa384x2host_16(inf->info.linkstatus.linkstatus);
schedule_work(&hw->link_bh);
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_inf_assocstatus
*
* Handles the receipt of an Association Status info frame. Should
* be present in APs only.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to info frame (contents in hfa384x order)
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
static void prism2sta_inf_assocstatus(wlandevice_t *wlandev,
hfa384x_InfFrame_t *inf)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
hfa384x_AssocStatus_t rec;
int i;
DBFENTER;
memcpy(&rec, &inf->info.assocstatus, sizeof(rec));
rec.assocstatus = hfa384x2host_16(rec.assocstatus);
rec.reason = hfa384x2host_16(rec.reason);
/*
** Find the address in the list of authenticated stations. If it wasn't
** found, then this address has not been previously authenticated and
** something weird has happened if this is anything other than an
** "authentication failed" message. If the address was found, then
** set the "associated" flag for that station, based on whether the
** station is associating or losing its association. Something weird
** has also happened if we find the address in the list of authenticated
** stations but we are getting an "authentication failed" message.
*/
for (i = 0; i < hw->authlist.cnt; i++)
if (memcmp(rec.sta_addr, hw->authlist.addr[i], WLAN_ADDR_LEN) == 0)
break;
if (i >= hw->authlist.cnt) {
if (rec.assocstatus != HFA384x_ASSOCSTATUS_AUTHFAIL)
WLAN_LOG_WARNING("assocstatus info frame received for non-authenticated station.\n");
} else {
hw->authlist.assoc[i] =
(rec.assocstatus == HFA384x_ASSOCSTATUS_STAASSOC ||
rec.assocstatus == HFA384x_ASSOCSTATUS_REASSOC);
if (rec.assocstatus == HFA384x_ASSOCSTATUS_AUTHFAIL)
WLAN_LOG_WARNING("authfail assocstatus info frame received for authenticated station.\n");
}
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_inf_authreq
*
* Handles the receipt of an Authentication Request info frame. Should
* be present in APs only.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to info frame (contents in hfa384x order)
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
*
----------------------------------------------------------------*/
static void prism2sta_inf_authreq(wlandevice_t *wlandev,
hfa384x_InfFrame_t *inf)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
struct sk_buff *skb;
DBFENTER;
skb = dev_alloc_skb(sizeof(*inf));
if (skb) {
skb_put(skb, sizeof(*inf));
memcpy(skb->data, inf, sizeof(*inf));
skb_queue_tail(&hw->authq, skb);
schedule_work(&hw->link_bh);
}
DBFEXIT;
}
static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
hfa384x_InfFrame_t *inf)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
hfa384x_authenticateStation_data_t rec;
int i, added, result, cnt;
u8 *addr;
DBFENTER;
/*
** Build the AuthenticateStation record. Initialize it for denying
** authentication.
*/
memcpy(rec.address, inf->info.authreq.sta_addr, WLAN_ADDR_LEN);
rec.status = P80211ENUM_status_unspec_failure;
/*
** Authenticate based on the access mode.
*/
switch (hw->accessmode) {
case WLAN_ACCESS_NONE:
/*
** Deny all new authentications. However, if a station
** is ALREADY authenticated, then accept it.
*/
for (i = 0; i < hw->authlist.cnt; i++)
if (memcmp(rec.address, hw->authlist.addr[i],
WLAN_ADDR_LEN) == 0) {
rec.status = P80211ENUM_status_successful;
break;
}
break;
case WLAN_ACCESS_ALL:
/*
** Allow all authentications.
*/
rec.status = P80211ENUM_status_successful;
break;
case WLAN_ACCESS_ALLOW:
/*
** Only allow the authentication if the MAC address
** is in the list of allowed addresses.
**
** Since this is the interrupt handler, we may be here
** while the access list is in the middle of being
** updated. Choose the list which is currently okay.
** See "prism2mib_priv_accessallow()" for details.
*/
if (hw->allow.modify == 0) {
cnt = hw->allow.cnt;
addr = hw->allow.addr[0];
} else {
cnt = hw->allow.cnt1;
addr = hw->allow.addr1[0];
}
for (i = 0; i < cnt; i++, addr += WLAN_ADDR_LEN)
if (memcmp(rec.address, addr, WLAN_ADDR_LEN) == 0) {
rec.status = P80211ENUM_status_successful;
break;
}
break;
case WLAN_ACCESS_DENY:
/*
** Allow the authentication UNLESS the MAC address is
** in the list of denied addresses.
**
** Since this is the interrupt handler, we may be here
** while the access list is in the middle of being
** updated. Choose the list which is currently okay.
** See "prism2mib_priv_accessdeny()" for details.
*/
if (hw->deny.modify == 0) {
cnt = hw->deny.cnt;
addr = hw->deny.addr[0];
} else {
cnt = hw->deny.cnt1;
addr = hw->deny.addr1[0];
}
rec.status = P80211ENUM_status_successful;
for (i = 0; i < cnt; i++, addr += WLAN_ADDR_LEN)
if (memcmp(rec.address, addr, WLAN_ADDR_LEN) == 0) {
rec.status = P80211ENUM_status_unspec_failure;
break;
}
break;
}
/*
** If the authentication is okay, then add the MAC address to the list
** of authenticated stations. Don't add the address if it is already in
** the list. (802.11b does not seem to disallow a station from issuing
** an authentication request when the station is already authenticated.
** Does this sort of thing ever happen? We might as well do the check
** just in case.)
*/
added = 0;
if (rec.status == P80211ENUM_status_successful) {
for (i = 0; i < hw->authlist.cnt; i++)
if (memcmp(rec.address, hw->authlist.addr[i], WLAN_ADDR_LEN) == 0)
break;
if (i >= hw->authlist.cnt) {
if (hw->authlist.cnt >= WLAN_AUTH_MAX) {
rec.status = P80211ENUM_status_ap_full;
} else {
memcpy(hw->authlist.addr[hw->authlist.cnt],
rec.address, WLAN_ADDR_LEN);
hw->authlist.cnt++;
added = 1;
}
}
}
/*
** Send back the results of the authentication. If this doesn't work,
** then make sure to remove the address from the authenticated list if
** it was added.
*/
rec.status = host2hfa384x_16(rec.status);
rec.algorithm = inf->info.authreq.algorithm;
result = hfa384x_drvr_setconfig(hw, HFA384x_RID_AUTHENTICATESTA,
&rec, sizeof(rec));
if (result) {
if (added) hw->authlist.cnt--;
WLAN_LOG_ERROR("setconfig(authenticatestation) failed, result=%d\n", result);
}
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_inf_psusercnt
*
* Handles the receipt of a PowerSaveUserCount info frame. Should
* be present in APs only.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to info frame (contents in hfa384x order)
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
static void prism2sta_inf_psusercnt(wlandevice_t *wlandev,
hfa384x_InfFrame_t *inf)
{
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
DBFENTER;
hw->psusercount = hfa384x2host_16(inf->info.psusercnt.usercnt);
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_ev_dtim
*
* Handles the DTIM early warning event.
*
* Arguments:
* wlandev wlan device structure
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
void prism2sta_ev_dtim(wlandevice_t *wlandev)
{
#if 0
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
#endif
DBFENTER;
WLAN_LOG_DEBUG(3, "DTIM event, currently unhandled.\n");
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_ev_infdrop
*
* Handles the InfDrop event.
*
* Arguments:
* wlandev wlan device structure
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
void prism2sta_ev_infdrop(wlandevice_t *wlandev)
{
#if 0
hfa384x_t *hw = (hfa384x_t *)wlandev->priv;
#endif
DBFENTER;
WLAN_LOG_DEBUG(3, "Info frame dropped due to card mem low.\n");
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_ev_info
*
* Handles the Info event.
*
* Arguments:
* wlandev wlan device structure
* inf ptr to a generic info frame
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
void prism2sta_ev_info(wlandevice_t *wlandev, hfa384x_InfFrame_t *inf)
{
DBFENTER;
inf->infotype = hfa384x2host_16(inf->infotype);
/* Dispatch */
switch ( inf->infotype ) {
case HFA384x_IT_HANDOVERADDR:
prism2sta_inf_handover(wlandev, inf);
break;
case HFA384x_IT_COMMTALLIES:
prism2sta_inf_tallies(wlandev, inf);
break;
case HFA384x_IT_HOSTSCANRESULTS:
prism2sta_inf_hostscanresults(wlandev, inf);
break;
case HFA384x_IT_SCANRESULTS:
prism2sta_inf_scanresults(wlandev, inf);
break;
case HFA384x_IT_CHINFORESULTS:
prism2sta_inf_chinforesults(wlandev, inf);
break;
case HFA384x_IT_LINKSTATUS:
prism2sta_inf_linkstatus(wlandev, inf);
break;
case HFA384x_IT_ASSOCSTATUS:
prism2sta_inf_assocstatus(wlandev, inf);
break;
case HFA384x_IT_AUTHREQ:
prism2sta_inf_authreq(wlandev, inf);
break;
case HFA384x_IT_PSUSERCNT:
prism2sta_inf_psusercnt(wlandev, inf);
break;
case HFA384x_IT_KEYIDCHANGED:
WLAN_LOG_WARNING("Unhandled IT_KEYIDCHANGED\n");
break;
case HFA384x_IT_ASSOCREQ:
WLAN_LOG_WARNING("Unhandled IT_ASSOCREQ\n");
break;
case HFA384x_IT_MICFAILURE:
WLAN_LOG_WARNING("Unhandled IT_MICFAILURE\n");
break;
default:
WLAN_LOG_WARNING(
"Unknown info type=0x%02x\n", inf->infotype);
break;
}
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_ev_txexc
*
* Handles the TxExc event. A Transmit Exception event indicates
* that the MAC's TX process was unsuccessful - so the packet did
* not get transmitted.
*
* Arguments:
* wlandev wlan device structure
* status tx frame status word
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
void prism2sta_ev_txexc(wlandevice_t *wlandev, u16 status)
{
DBFENTER;
WLAN_LOG_DEBUG(3, "TxExc status=0x%x.\n", status);
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_ev_tx
*
* Handles the Tx event.
*
* Arguments:
* wlandev wlan device structure
* status tx frame status word
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
void prism2sta_ev_tx(wlandevice_t *wlandev, u16 status)
{
DBFENTER;
WLAN_LOG_DEBUG(4, "Tx Complete, status=0x%04x\n", status);
/* update linux network stats */
wlandev->linux_stats.tx_packets++;
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_ev_rx
*
* Handles the Rx event.
*
* Arguments:
* wlandev wlan device structure
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
void prism2sta_ev_rx(wlandevice_t *wlandev, struct sk_buff *skb)
{
DBFENTER;
p80211netdev_rx(wlandev, skb);
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* prism2sta_ev_alloc
*
* Handles the Alloc event.
*
* Arguments:
* wlandev wlan device structure
*
* Returns:
* nothing
*
* Side effects:
*
* Call context:
* interrupt
----------------------------------------------------------------*/
void prism2sta_ev_alloc(wlandevice_t *wlandev)
{
DBFENTER;
netif_wake_queue(wlandev->netdev);
DBFEXIT;
return;
}
/*----------------------------------------------------------------
* create_wlan
*
* Called at module init time. This creates the wlandevice_t structure
* and initializes it with relevant bits.
*
* Arguments:
* none
*
* Returns:
* the created wlandevice_t structure.
*
* Side effects:
* also allocates the priv/hw structures.
*
* Call context:
* process thread
*
----------------------------------------------------------------*/
static wlandevice_t *create_wlan(void)
{
wlandevice_t *wlandev = NULL;
hfa384x_t *hw = NULL;
/* Alloc our structures */
wlandev = kmalloc(sizeof(wlandevice_t), GFP_KERNEL);
hw = kmalloc(sizeof(hfa384x_t), GFP_KERNEL);
if (!wlandev || !hw) {
WLAN_LOG_ERROR("%s: Memory allocation failure.\n", dev_info);
if (wlandev) kfree(wlandev);
if (hw) kfree(hw);
return NULL;
}
/* Clear all the structs */
memset(wlandev, 0, sizeof(wlandevice_t));
memset(hw, 0, sizeof(hfa384x_t));
/* Initialize the network device object. */
wlandev->nsdname = dev_info;
wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
wlandev->priv = hw;
wlandev->open = prism2sta_open;
wlandev->close = prism2sta_close;
wlandev->reset = prism2sta_reset;
wlandev->txframe = prism2sta_txframe;
wlandev->mlmerequest = prism2sta_mlmerequest;
wlandev->set_multicast_list = prism2sta_setmulticast;
wlandev->tx_timeout = hfa384x_tx_timeout;
wlandev->nsdcaps = P80211_NSDCAP_HWFRAGMENT |
P80211_NSDCAP_AUTOJOIN;
/* Initialize the device private data stucture. */
hw->dot11_desired_bss_type = 1;
return wlandev;
}
void prism2sta_commsqual_defer(struct work_struct *data)
{
hfa384x_t *hw = container_of(data, struct hfa384x, commsqual_bh);
wlandevice_t *wlandev = hw->wlandev;
hfa384x_bytestr32_t ssid;
int result = 0;
DBFENTER;
if (hw->wlandev->hwremoved)
goto done;
/* we don't care if we're in AP mode */
if ((wlandev->macmode == WLAN_MACMODE_NONE) ||
(wlandev->macmode == WLAN_MACMODE_ESS_AP)) {
goto done;
}
/* It only makes sense to poll these in non-IBSS */
if (wlandev->macmode != WLAN_MACMODE_IBSS_STA) {
result = hfa384x_drvr_getconfig(hw, HFA384x_RID_DBMCOMMSQUALITY,
&hw->qual,
HFA384x_RID_DBMCOMMSQUALITY_LEN);
if (result) {
WLAN_LOG_ERROR("error fetching commsqual\n");
goto done;
}
// qual.CQ_currBSS; // link
// ASL_currBSS; // level
// qual.ANL_currFC; // noise
WLAN_LOG_DEBUG(3, "commsqual %d %d %d\n",
hfa384x2host_16(hw->qual.CQ_currBSS),
hfa384x2host_16(hw->qual.ASL_currBSS),
hfa384x2host_16(hw->qual.ANL_currFC));
}
/* Lastly, we need to make sure the BSSID didn't change on us */
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTBSSID,
wlandev->bssid, WLAN_BSSID_LEN);
if ( result ) {
WLAN_LOG_DEBUG(1,
"getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTBSSID, result);
goto done;
}
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTSSID,
&ssid, sizeof(ssid));
if ( result ) {
WLAN_LOG_DEBUG(1,
"getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTSSID, result);
goto done;
}
prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *)&ssid,
(p80211pstrd_t *) &wlandev->ssid);
/* Reschedule timer */
mod_timer(&hw->commsqual_timer, jiffies + HZ);
done:
DBFEXIT;
}
void prism2sta_commsqual_timer(unsigned long data)
{
hfa384x_t *hw = (hfa384x_t *) data;
DBFENTER;
schedule_work(&hw->commsqual_bh);
DBFEXIT;
}
