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alistair23-linux/drivers/staging/wlan-ng/prism2sta.c
Xenia Ragiadakou 57e6d78440 wlan-ng: replace calls to kmalloc and memcpy with kmemdup 
This patch replaces calls to kmalloc that are followed
by memcpy with calls to kmemdup.
This patch was found using coccicheck with api/memdup.cocci,
with memdup.cocci script slightly altered in the following way:

@depends on patch@
expression from,to,size,flag;
position p != {r1.p,r2.p};
@@

-  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+  to = kmemdup(from,size,flag);
-  memcpy(to, from, size);

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-13 14:01:26 -07:00

2053 lines
57 KiB
C
Raw Blame History

/* 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.
*
* --------------------------------------------------------------------
*/
#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 <linux/byteorder/generic.h>
#include <linux/ctype.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <asm/byteorder.h>
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/bitops.h>
#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"
/* Create a string of printable chars from something that might not be */
/* It's recommended that the str be 4*len + 1 bytes long */
#define wlan_mkprintstr(buf, buflen, str, strlen) \
{ \
int i = 0; \
int j = 0; \
memset(str, 0, (strlen)); \
for (i = 0; i < (buflen); i++) { \
if (isprint((buf)[i])) { \
(str)[j] = (buf)[i]; \
j++; \
} else { \
(str)[j] = '\\'; \
(str)[j+1] = 'x'; \
(str)[j+2] = hex_asc_hi((buf)[i]); \
(str)[j+3] = hex_asc_lo((buf)[i]); \
j += 4; \
} \
} \
}
static char *dev_info = "prism2_usb";
static wlandevice_t *create_wlan(void);
int prism2_reset_holdtime = 30; /* Reset hold time in ms */
int prism2_reset_settletime = 100; /* Reset settle time in ms */
static int prism2_doreset; /* Do a reset at init? */
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");
void prism2_connect_result(wlandevice_t *wlandev, u8 failed);
void prism2_disconnected(wlandevice_t *wlandev);
void prism2_roamed(wlandevice_t *wlandev);
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,
union p80211_hdr *p80211_hdr,
struct p80211_metawep *p80211_wep);
static int prism2sta_mlmerequest(wlandevice_t *wlandev, struct p80211msg *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);
/*----------------------------------------------------------------
* 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)
{
/* 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.
*/
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)
{
/* 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.
*/
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)
{
}
/*----------------------------------------------------------------
* 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,
union p80211_hdr *p80211_hdr,
struct p80211_metawep *p80211_wep)
{
hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
int result;
/* If necessary, set the 802.11 WEP bit */
if ((wlandev->hostwep & (HOSTWEP_PRIVACYINVOKED | HOSTWEP_ENCRYPT)) ==
HOSTWEP_PRIVACYINVOKED) {
p80211_hdr->a3.fc |= cpu_to_le16(WLAN_SET_FC_ISWEP(1));
}
result = hfa384x_drvr_txframe(hw, skb, p80211_hdr, p80211_wep);
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, struct p80211msg *msg)
{
hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
int result = 0;
switch (msg->msgcode) {
case DIDmsg_dot11req_mibget:
pr_debug("Received mibget request\n");
result = prism2mgmt_mibset_mibget(wlandev, msg);
break;
case DIDmsg_dot11req_mibset:
pr_debug("Received mibset request\n");
result = prism2mgmt_mibset_mibget(wlandev, msg);
break;
case DIDmsg_dot11req_scan:
pr_debug("Received scan request\n");
result = prism2mgmt_scan(wlandev, msg);
break;
case DIDmsg_dot11req_scan_results:
pr_debug("Received scan_results request\n");
result = prism2mgmt_scan_results(wlandev, msg);
break;
case DIDmsg_dot11req_start:
pr_debug("Received mlme start request\n");
result = prism2mgmt_start(wlandev, msg);
break;
/*
* Prism2 specific messages
*/
case DIDmsg_p2req_readpda:
pr_debug("Received mlme readpda request\n");
result = prism2mgmt_readpda(wlandev, msg);
break;
case DIDmsg_p2req_ramdl_state:
pr_debug("Received mlme ramdl_state request\n");
result = prism2mgmt_ramdl_state(wlandev, msg);
break;
case DIDmsg_p2req_ramdl_write:
pr_debug("Received mlme ramdl_write request\n");
result = prism2mgmt_ramdl_write(wlandev, msg);
break;
case DIDmsg_p2req_flashdl_state:
pr_debug("Received mlme flashdl_state request\n");
result = prism2mgmt_flashdl_state(wlandev, msg);
break;
case DIDmsg_p2req_flashdl_write:
pr_debug("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:
{
struct p80211msg_lnxreq_ifstate *ifstatemsg;
pr_debug("Received mlme ifstate request\n");
ifstatemsg = (struct p80211msg_lnxreq_ifstate *) 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:
pr_debug("Received mlme wlansniff request\n");
result = prism2mgmt_wlansniff(wlandev, msg);
break;
case DIDmsg_lnxreq_autojoin:
pr_debug("Received mlme autojoin request\n");
result = prism2mgmt_autojoin(wlandev, msg);
break;
case DIDmsg_lnxreq_commsquality:{
struct p80211msg_lnxreq_commsquality *qualmsg;
pr_debug("Received commsquality request\n");
qualmsg = (struct p80211msg_lnxreq_commsquality *) 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 = le16_to_cpu(hw->qual.CQ_currBSS);
qualmsg->level.data = le16_to_cpu(hw->qual.ASL_currBSS);
qualmsg->noise.data = le16_to_cpu(hw->qual.ANL_currFC);
qualmsg->txrate.data = hw->txrate;
break;
}
default:
printk(KERN_WARNING "Unknown mgmt request message 0x%08x",
msg->msgcode);
break;
}
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;
result = P80211ENUM_resultcode_implementation_failure;
pr_debug("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.
*/
result = hfa384x_drvr_start(hw);
if (result) {
printk(KERN_ERR
"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:
printk(KERN_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.
*/
result = hfa384x_drvr_start(hw);
if (result) {
printk(KERN_ERR
"hfa384x_drvr_start() failed,"
"result=%d\n", (int)result);
result =
P80211ENUM_resultcode_implementation_failure;
wlandev->msdstate = WLAN_MSD_HWPRESENT;
break;
}
result = prism2sta_getcardinfo(wlandev);
if (result) {
printk(KERN_ERR
"prism2sta_getcardinfo() failed,"
"result=%d\n", (int)result);
result =
P80211ENUM_resultcode_implementation_failure;
hfa384x_drvr_stop(hw);
wlandev->msdstate = WLAN_MSD_HWPRESENT;
break;
}
result = prism2sta_globalsetup(wlandev);
if (result) {
printk(KERN_ERR
"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;
}
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];
/* 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) {
printk(KERN_ERR "Failed to retrieve NICIDENTITY\n");
goto failed;
}
/* get all the nic id fields in host byte order */
hw->ident_nic.id = le16_to_cpu(hw->ident_nic.id);
hw->ident_nic.variant = le16_to_cpu(hw->ident_nic.variant);
hw->ident_nic.major = le16_to_cpu(hw->ident_nic.major);
hw->ident_nic.minor = le16_to_cpu(hw->ident_nic.minor);
printk(KERN_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) {
printk(KERN_ERR "Failed to retrieve PRIIDENTITY\n");
goto failed;
}
/* get all the private fw id fields in host byte order */
hw->ident_pri_fw.id = le16_to_cpu(hw->ident_pri_fw.id);
hw->ident_pri_fw.variant = le16_to_cpu(hw->ident_pri_fw.variant);
hw->ident_pri_fw.major = le16_to_cpu(hw->ident_pri_fw.major);
hw->ident_pri_fw.minor = le16_to_cpu(hw->ident_pri_fw.minor);
printk(KERN_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) {
printk(KERN_ERR "Failed to retrieve STAIDENTITY\n");
goto failed;
}
if (hw->ident_nic.id < 0x8000) {
printk(KERN_ERR
"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 = le16_to_cpu(hw->ident_sta_fw.id);
hw->ident_sta_fw.variant = le16_to_cpu(hw->ident_sta_fw.variant);
hw->ident_sta_fw.major = le16_to_cpu(hw->ident_sta_fw.major);
hw->ident_sta_fw.minor = le16_to_cpu(hw->ident_sta_fw.minor);
/* strip out the 'special' variant bits */
hw->mm_mods = hw->ident_sta_fw.variant & (BIT(14) | BIT(15));
hw->ident_sta_fw.variant &= ~((u16) (BIT(14) | BIT(15)));
if (hw->ident_sta_fw.id == 0x1f) {
printk(KERN_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 {
printk(KERN_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);
printk(KERN_ERR "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) {
printk(KERN_ERR "Failed to retrieve MFISUPRANGE\n");
goto failed;
}
/* get all the Compatibility range, modem interface supplier
fields in byte order */
hw->cap_sup_mfi.role = le16_to_cpu(hw->cap_sup_mfi.role);
hw->cap_sup_mfi.id = le16_to_cpu(hw->cap_sup_mfi.id);
hw->cap_sup_mfi.variant = le16_to_cpu(hw->cap_sup_mfi.variant);
hw->cap_sup_mfi.bottom = le16_to_cpu(hw->cap_sup_mfi.bottom);
hw->cap_sup_mfi.top = le16_to_cpu(hw->cap_sup_mfi.top);
printk(KERN_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) {
printk(KERN_ERR "Failed to retrieve CFISUPRANGE\n");
goto failed;
}
/* get all the Compatibility range, controller interface supplier
fields in byte order */
hw->cap_sup_cfi.role = le16_to_cpu(hw->cap_sup_cfi.role);
hw->cap_sup_cfi.id = le16_to_cpu(hw->cap_sup_cfi.id);
hw->cap_sup_cfi.variant = le16_to_cpu(hw->cap_sup_cfi.variant);
hw->cap_sup_cfi.bottom = le16_to_cpu(hw->cap_sup_cfi.bottom);
hw->cap_sup_cfi.top = le16_to_cpu(hw->cap_sup_cfi.top);
printk(KERN_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) {
printk(KERN_ERR "Failed to retrieve PRISUPRANGE\n");
goto failed;
}
/* get all the Compatibility range, primary firmware supplier
fields in byte order */
hw->cap_sup_pri.role = le16_to_cpu(hw->cap_sup_pri.role);
hw->cap_sup_pri.id = le16_to_cpu(hw->cap_sup_pri.id);
hw->cap_sup_pri.variant = le16_to_cpu(hw->cap_sup_pri.variant);
hw->cap_sup_pri.bottom = le16_to_cpu(hw->cap_sup_pri.bottom);
hw->cap_sup_pri.top = le16_to_cpu(hw->cap_sup_pri.top);
printk(KERN_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) {
printk(KERN_ERR "Failed to retrieve STASUPRANGE\n");
goto failed;
}
/* get all the Compatibility range, station firmware supplier
fields in byte order */
hw->cap_sup_sta.role = le16_to_cpu(hw->cap_sup_sta.role);
hw->cap_sup_sta.id = le16_to_cpu(hw->cap_sup_sta.id);
hw->cap_sup_sta.variant = le16_to_cpu(hw->cap_sup_sta.variant);
hw->cap_sup_sta.bottom = le16_to_cpu(hw->cap_sup_sta.bottom);
hw->cap_sup_sta.top = le16_to_cpu(hw->cap_sup_sta.top);
if (hw->cap_sup_sta.id == 0x04) {
printk(KERN_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 {
printk(KERN_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) {
printk(KERN_ERR "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 = le16_to_cpu(hw->cap_act_pri_cfi.role);
hw->cap_act_pri_cfi.id = le16_to_cpu(hw->cap_act_pri_cfi.id);
hw->cap_act_pri_cfi.variant = le16_to_cpu(hw->cap_act_pri_cfi.variant);
hw->cap_act_pri_cfi.bottom = le16_to_cpu(hw->cap_act_pri_cfi.bottom);
hw->cap_act_pri_cfi.top = le16_to_cpu(hw->cap_act_pri_cfi.top);
printk(KERN_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) {
printk(KERN_ERR "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 = le16_to_cpu(hw->cap_act_sta_cfi.role);
hw->cap_act_sta_cfi.id = le16_to_cpu(hw->cap_act_sta_cfi.id);
hw->cap_act_sta_cfi.variant = le16_to_cpu(hw->cap_act_sta_cfi.variant);
hw->cap_act_sta_cfi.bottom = le16_to_cpu(hw->cap_act_sta_cfi.bottom);
hw->cap_act_sta_cfi.top = le16_to_cpu(hw->cap_act_sta_cfi.top);
printk(KERN_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) {
printk(KERN_ERR "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 = le16_to_cpu(hw->cap_act_sta_mfi.role);
hw->cap_act_sta_mfi.id = le16_to_cpu(hw->cap_act_sta_mfi.id);
hw->cap_act_sta_mfi.variant = le16_to_cpu(hw->cap_act_sta_mfi.variant);
hw->cap_act_sta_mfi.bottom = le16_to_cpu(hw->cap_act_sta_mfi.bottom);
hw->cap_act_sta_mfi.top = le16_to_cpu(hw->cap_act_sta_mfi.top);
printk(KERN_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));
printk(KERN_INFO "Prism2 card SN: %s\n", pstr);
} else {
printk(KERN_ERR "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, ETH_ALEN);
if (result != 0) {
printk(KERN_ERR "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:
printk(KERN_ERR "Failed, result=%d\n", result);
done:
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;
/* 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);
exit:
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)
{
pr_debug("received infoframe:HANDOVER (unhandled)\n");
}
/*----------------------------------------------------------------
* 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;
/*
** 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 += le32_to_cpu(*src32);
} else {
dst = (u32 *) &hw->tallies;
src16 = (u16 *) &inf->info.commtallies16;
for (i = 0; i < cnt; i++, dst++, src16++)
*dst += le16_to_cpu(*src16);
}
}
/*----------------------------------------------------------------
* 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;
/* 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 */
pr_debug("rx scanresults, reason=%d, nbss=%d:\n",
inf->info.scanresult.scanreason, nbss);
for (i = 0; i < nbss; i++) {
pr_debug("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);
pr_debug(" 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) {
printk(KERN_ERR "setconfig(joinreq) failed, result=%d\n",
result);
}
}
/*----------------------------------------------------------------
* 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;
nbss = (inf->framelen - 3) / 32;
pr_debug("Received %d hostscan results\n", nbss);
if (nbss > 32)
nbss = 32;
kfree(hw->scanresults);
hw->scanresults = kmemdup(inf, sizeof(hfa384x_InfFrame_t), GFP_ATOMIC);
if (nbss == 0)
nbss = -1;
/* Notify/wake the sleeping caller. */
hw->scanflag = nbss;
wake_up_interruptible(&hw->cmdq);
};
/*----------------------------------------------------------------
* 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;
hw->channel_info.results.scanchannels =
le16_to_cpu(inf->info.chinforesult.scanchannels);
for (i = 0, n = 0; i < HFA384x_CHINFORESULT_MAX; i++) {
hfa384x_ChInfoResultSub_t *result;
hfa384x_ChInfoResultSub_t *chinforesult;
int chan;
if (!(hw->channel_info.results.scanchannels & (1 << i)))
continue;
result = &inf->info.chinforesult.result[n];
chan = le16_to_cpu(result->chid) - 1;
if (chan < 0 || chan >= HFA384x_CHINFORESULT_MAX)
continue;
chinforesult = &hw->channel_info.results.result[chan];
chinforesult->chid = chan;
chinforesult->anl = le16_to_cpu(result->anl);
chinforesult->pnl = le16_to_cpu(result->pnl);
chinforesult->active = le16_to_cpu(result->active);
pr_debug("chinfo: channel %d, %s level (avg/peak)=%d/%d dB, pcf %d\n",
chan + 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;
}
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;
/* 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)
return;
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);
printk(KERN_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;
printk(KERN_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) {
pr_debug
("getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTBSSID, result);
return;
}
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTSSID,
&ssid, sizeof(ssid));
if (result) {
pr_debug
("getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTSSID, result);
return;
}
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) {
pr_debug
("getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_PORTSTATUS, result);
return;
}
wlandev->macmode =
(portstatus == HFA384x_PSTATUS_CONN_IBSS) ?
WLAN_MACMODE_IBSS_STA : WLAN_MACMODE_ESS_STA;
/* signal back up to cfg80211 layer */
prism2_connect_result(wlandev, P80211ENUM_truth_false);
/* 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 (wlandev->netdev->type == ARPHRD_ETHER)
printk(KERN_INFO
"linkstatus=DISCONNECTED (unhandled)\n");
wlandev->macmode = WLAN_MACMODE_NONE;
netif_carrier_off(wlandev->netdev);
/* signal back up to cfg80211 layer */
prism2_disconnected(wlandev);
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
*/
printk(KERN_INFO "linkstatus=AP_CHANGE\n");
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTBSSID,
wlandev->bssid, WLAN_BSSID_LEN);
if (result) {
pr_debug("getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTBSSID, result);
return;
}
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTSSID,
&ssid, sizeof(ssid));
if (result) {
pr_debug("getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTSSID, result);
return;
}
prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *) &ssid,
(p80211pstrd_t *) &wlandev->ssid);
hw->link_status = HFA384x_LINK_CONNECTED;
netif_carrier_on(wlandev->netdev);
/* signal back up to cfg80211 layer */
prism2_roamed(wlandev);
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
*/
printk(KERN_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
*/
printk(KERN_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);
printk(KERN_INFO
"linkstatus=ASSOCFAIL (re-submitting join)\n");
} else {
printk(KERN_INFO "linkstatus=ASSOCFAIL (unhandled)\n");
}
netif_carrier_off(wlandev->netdev);
/* signal back up to cfg80211 layer */
prism2_connect_result(wlandev, P80211ENUM_truth_true);
break;
default:
/* This is bad, IO port problems? */
printk(KERN_WARNING
"unknown linkstatus=0x%02x\n", hw->link_status);
return;
}
wlandev->linkstatus = (hw->link_status == HFA384x_LINK_CONNECTED);
}
/*----------------------------------------------------------------
* 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;
hw->link_status_new = le16_to_cpu(inf->info.linkstatus.linkstatus);
schedule_work(&hw->link_bh);
}
/*----------------------------------------------------------------
* 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;
memcpy(&rec, &inf->info.assocstatus, sizeof(rec));
rec.assocstatus = le16_to_cpu(rec.assocstatus);
rec.reason = le16_to_cpu(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], ETH_ALEN) == 0)
break;
if (i >= hw->authlist.cnt) {
if (rec.assocstatus != HFA384x_ASSOCSTATUS_AUTHFAIL)
printk(KERN_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)
printk(KERN_WARNING
"authfail assocstatus info frame received for authenticated station.\n");
}
}
/*----------------------------------------------------------------
* 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;
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);
}
}
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;
/*
** Build the AuthenticateStation record. Initialize it for denying
** authentication.
*/
memcpy(rec.address, inf->info.authreq.sta_addr, ETH_ALEN);
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],
ETH_ALEN) == 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 += ETH_ALEN)
if (memcmp(rec.address, addr, ETH_ALEN) == 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 += ETH_ALEN)
if (memcmp(rec.address, addr, ETH_ALEN) == 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], ETH_ALEN)
== 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, ETH_ALEN);
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 = cpu_to_le16(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--;
printk(KERN_ERR
"setconfig(authenticatestation) failed, result=%d\n",
result);
}
}
/*----------------------------------------------------------------
* 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;
hw->psusercount = le16_to_cpu(inf->info.psusercnt.usercnt);
}
/*----------------------------------------------------------------
* 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)
{
inf->infotype = le16_to_cpu(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:
printk(KERN_WARNING "Unhandled IT_KEYIDCHANGED\n");
break;
case HFA384x_IT_ASSOCREQ:
printk(KERN_WARNING "Unhandled IT_ASSOCREQ\n");
break;
case HFA384x_IT_MICFAILURE:
printk(KERN_WARNING "Unhandled IT_MICFAILURE\n");
break;
default:
printk(KERN_WARNING
"Unknown info type=0x%02x\n", inf->infotype);
break;
}
}
/*----------------------------------------------------------------
* 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)
{
pr_debug("TxExc status=0x%x.\n", status);
}
/*----------------------------------------------------------------
* 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)
{
pr_debug("Tx Complete, status=0x%04x\n", status);
/* update linux network stats */
wlandev->linux_stats.tx_packets++;
}
/*----------------------------------------------------------------
* 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)
{
p80211netdev_rx(wlandev, skb);
}
/*----------------------------------------------------------------
* 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)
{
netif_wake_queue(wlandev->netdev);
}
/*----------------------------------------------------------------
* 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 = kzalloc(sizeof(wlandevice_t), GFP_KERNEL);
hw = kzalloc(sizeof(hfa384x_t), GFP_KERNEL);
if (!wlandev || !hw) {
printk(KERN_ERR "%s: Memory allocation failure.\n", dev_info);
kfree(wlandev);
kfree(hw);
return NULL;
}
/* 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 structure. */
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;
struct p80211msg_dot11req_mibget msg;
p80211item_uint32_t *mibitem = (p80211item_uint32_t *)
&msg.mibattribute.data;
int result = 0;
if (hw->wlandev->hwremoved)
return;
/* we don't care if we're in AP mode */
if ((wlandev->macmode == WLAN_MACMODE_NONE) ||
(wlandev->macmode == WLAN_MACMODE_ESS_AP)) {
return;
}
/* 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) {
printk(KERN_ERR "error fetching commsqual\n");
return;
}
pr_debug("commsqual %d %d %d\n",
le16_to_cpu(hw->qual.CQ_currBSS),
le16_to_cpu(hw->qual.ASL_currBSS),
le16_to_cpu(hw->qual.ANL_currFC));
}
/* Get the signal rate */
msg.msgcode = DIDmsg_dot11req_mibget;
mibitem->did = DIDmib_p2_p2MAC_p2CurrentTxRate;
result = p80211req_dorequest(wlandev, (u8 *) &msg);
if (result) {
pr_debug("get signal rate failed, result = %d\n",
result);
return;
}
switch (mibitem->data) {
case HFA384x_RATEBIT_1:
hw->txrate = 10;
break;
case HFA384x_RATEBIT_2:
hw->txrate = 20;
break;
case HFA384x_RATEBIT_5dot5:
hw->txrate = 55;
break;
case HFA384x_RATEBIT_11:
hw->txrate = 110;
break;
default:
pr_debug("Bad ratebit (%d)\n", mibitem->data);
}
/* 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) {
pr_debug("getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTBSSID, result);
return;
}
result = hfa384x_drvr_getconfig(hw,
HFA384x_RID_CURRENTSSID,
&ssid, sizeof(ssid));
if (result) {
pr_debug("getconfig(0x%02x) failed, result = %d\n",
HFA384x_RID_CURRENTSSID, result);
return;
}
prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *) &ssid,
(p80211pstrd_t *) &wlandev->ssid);
/* Reschedule timer */
mod_timer(&hw->commsqual_timer, jiffies + HZ);
}
void prism2sta_commsqual_timer(unsigned long data)
{
hfa384x_t *hw = (hfa384x_t *) data;
schedule_work(&hw->commsqual_bh);
}
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