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- /* 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/kernel.h>
- #include <linux/sched.h>
- #include <linux/types.h>
- #include <linux/slab.h>
- #include <linux/wireless.h>
- #include <linux/netdevice.h>
- #include <linux/workqueue.h>
- #include <linux/byteorder/generic.h>
- #include <linux/etherdevice.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"
- 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");
- 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
- *
- * Currently not implemented.
- *
- * 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;
- /* 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));
- }
- return hfa384x_drvr_txframe(hw, skb, p80211_hdr, p80211_wep);
- }
- /*
- * 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:
- netdev_warn(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev,
- "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:
- netdev_warn(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev,
- "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];
- /* 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) {
- netdev_err(wlandev->netdev, "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);
- netdev_info(wlandev->netdev, "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) {
- netdev_err(wlandev->netdev, "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);
- netdev_info(wlandev->netdev, "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) {
- netdev_err(wlandev->netdev, "Failed to retrieve STAIDENTITY\n");
- goto failed;
- }
- if (hw->ident_nic.id < 0x8000) {
- netdev_err(wlandev->netdev,
- "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) {
- netdev_info(wlandev->netdev,
- "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 {
- netdev_info(wlandev->netdev,
- "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);
- netdev_err(wlandev->netdev, "Unsupported Tertiary AP firmware 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) {
- netdev_err(wlandev->netdev, "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);
- netdev_info(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev, "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);
- netdev_info(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev, "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);
- netdev_info(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev, "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) {
- netdev_info(wlandev->netdev,
- "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 {
- netdev_info(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev, "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);
- netdev_info(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev, "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);
- netdev_info(wlandev->netdev,
- "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) {
- netdev_err(wlandev->netdev, "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);
- netdev_info(wlandev->netdev,
- "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) {
- netdev_info(wlandev->netdev, "Prism2 card SN: %*pEhp\n",
- HFA384x_RID_NICSERIALNUMBER_LEN, snum);
- } else {
- netdev_err(wlandev->netdev, "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) {
- netdev_err(wlandev->netdev, "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:
- netdev_err(wlandev->netdev, "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) {
- netdev_err(wlandev->netdev, "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);
- netdev_info(wlandev->netdev, "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;
- netdev_info(wlandev->netdev, "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(
- (struct hfa384x_bytestr *) &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)
- netdev_info(wlandev->netdev,
- "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
- */
- netdev_info(wlandev->netdev, "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((struct hfa384x_bytestr *) &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
- */
- netdev_info(wlandev->netdev, "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
- */
- netdev_info(wlandev->netdev, "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);
- netdev_info(wlandev->netdev,
- "linkstatus=ASSOCFAIL (re-submitting join)\n");
- } else {
- netdev_info(wlandev->netdev, "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? */
- netdev_warn(wlandev->netdev,
- "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 (ether_addr_equal(rec.sta_addr, hw->authlist.addr[i]))
- break;
- if (i >= hw->authlist.cnt) {
- if (rec.assocstatus != HFA384x_ASSOCSTATUS_AUTHFAIL)
- netdev_warn(wlandev->netdev,
- "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)
- netdev_warn(wlandev->netdev,
- "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.
- */
- ether_addr_copy(rec.address, inf->info.authreq.sta_addr);
- 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 (ether_addr_equal(rec.address,
- hw->authlist.addr[i])) {
- 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 (ether_addr_equal(rec.address, addr)) {
- 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 (ether_addr_equal(rec.address, addr)) {
- 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 (ether_addr_equal(rec.address,
- hw->authlist.addr[i]))
- break;
- if (i >= hw->authlist.cnt) {
- if (hw->authlist.cnt >= WLAN_AUTH_MAX) {
- rec.status = P80211ENUM_status_ap_full;
- } else {
- ether_addr_copy(
- hw->authlist.addr[hw->authlist.cnt],
- rec.address);
- 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--;
- netdev_err(wlandev->netdev,
- "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:
- netdev_warn(wlandev->netdev, "Unhandled IT_KEYIDCHANGED\n");
- break;
- case HFA384x_IT_ASSOCREQ:
- netdev_warn(wlandev->netdev, "Unhandled IT_ASSOCREQ\n");
- break;
- case HFA384x_IT_MICFAILURE:
- netdev_warn(wlandev->netdev, "Unhandled IT_MICFAILURE\n");
- break;
- default:
- netdev_warn(wlandev->netdev,
- "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->netdev->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) {
- pr_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) {
- netdev_err(wlandev->netdev, "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((struct hfa384x_bytestr *) &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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