// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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 struct wlandevice *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(struct wlandevice *wlandev); static int prism2sta_close(struct wlandevice *wlandev); static void prism2sta_reset(struct wlandevice *wlandev); static int prism2sta_txframe(struct wlandevice *wlandev, struct sk_buff *skb, union p80211_hdr *p80211_hdr, struct p80211_metawep *p80211_wep); static int prism2sta_mlmerequest(struct wlandevice *wlandev, struct p80211msg *msg); static int prism2sta_getcardinfo(struct wlandevice *wlandev); static int prism2sta_globalsetup(struct wlandevice *wlandev); static int prism2sta_setmulticast(struct wlandevice *wlandev, struct net_device *dev); static void prism2sta_inf_handover(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf); static void prism2sta_inf_tallies(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf); static void prism2sta_inf_hostscanresults(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf); static void prism2sta_inf_scanresults(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf); static void prism2sta_inf_chinforesults(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf); static void prism2sta_inf_linkstatus(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf); static void prism2sta_inf_assocstatus(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf); static void prism2sta_inf_authreq(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf); static void prism2sta_inf_authreq_defer(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf); static void prism2sta_inf_psusercnt(struct wlandevice *wlandev, struct hfa384x_inf_frame *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(struct wlandevice *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(struct wlandevice *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(struct wlandevice *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(struct wlandevice *wlandev, struct sk_buff *skb, union p80211_hdr *p80211_hdr, struct p80211_metawep *p80211_wep) { struct hfa384x *hw = 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(struct wlandevice *wlandev, struct p80211msg *msg) { struct hfa384x *hw = 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_curr_bss); qualmsg->level.data = le16_to_cpu(hw->qual.asl_curr_bss); qualmsg->noise.data = le16_to_cpu(hw->qual.anl_curr_fc); 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(struct wlandevice *wlandev, u32 ifstate) { struct hfa384x *hw = 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(struct wlandevice *wlandev) { int result = 0; struct hfa384x *hw = 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(struct hfa384x_compident)); if (result) { netdev_err(wlandev->netdev, "Failed to retrieve NICIDENTITY\n"); goto failed; } /* get all the nic id fields in host byte order */ le16_to_cpus(&hw->ident_nic.id); le16_to_cpus(&hw->ident_nic.variant); le16_to_cpus(&hw->ident_nic.major); le16_to_cpus(&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(struct hfa384x_compident)); if (result) { netdev_err(wlandev->netdev, "Failed to retrieve PRIIDENTITY\n"); goto failed; } /* get all the private fw id fields in host byte order */ le16_to_cpus(&hw->ident_pri_fw.id); le16_to_cpus(&hw->ident_pri_fw.variant); le16_to_cpus(&hw->ident_pri_fw.major); le16_to_cpus(&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(struct hfa384x_compident)); 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 */ le16_to_cpus(&hw->ident_sta_fw.id); le16_to_cpus(&hw->ident_sta_fw.variant); le16_to_cpus(&hw->ident_sta_fw.major); le16_to_cpus(&hw->ident_sta_fw.minor); /* strip out the 'special' variant bits */ hw->mm_mods = hw->ident_sta_fw.variant & GENMASK(15, 14); hw->ident_sta_fw.variant &= ~((u16)GENMASK(15, 14)); 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(struct hfa384x_caplevel)); 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 */ le16_to_cpus(&hw->cap_sup_mfi.role); le16_to_cpus(&hw->cap_sup_mfi.id); le16_to_cpus(&hw->cap_sup_mfi.variant); le16_to_cpus(&hw->cap_sup_mfi.bottom); le16_to_cpus(&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(struct hfa384x_caplevel)); 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 */ le16_to_cpus(&hw->cap_sup_cfi.role); le16_to_cpus(&hw->cap_sup_cfi.id); le16_to_cpus(&hw->cap_sup_cfi.variant); le16_to_cpus(&hw->cap_sup_cfi.bottom); le16_to_cpus(&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(struct hfa384x_caplevel)); 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 */ le16_to_cpus(&hw->cap_sup_pri.role); le16_to_cpus(&hw->cap_sup_pri.id); le16_to_cpus(&hw->cap_sup_pri.variant); le16_to_cpus(&hw->cap_sup_pri.bottom); le16_to_cpus(&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(struct hfa384x_caplevel)); 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 */ le16_to_cpus(&hw->cap_sup_sta.role); le16_to_cpus(&hw->cap_sup_sta.id); le16_to_cpus(&hw->cap_sup_sta.variant); le16_to_cpus(&hw->cap_sup_sta.bottom); le16_to_cpus(&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(struct hfa384x_caplevel)); 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 */ le16_to_cpus(&hw->cap_act_pri_cfi.role); le16_to_cpus(&hw->cap_act_pri_cfi.id); le16_to_cpus(&hw->cap_act_pri_cfi.variant); le16_to_cpus(&hw->cap_act_pri_cfi.bottom); le16_to_cpus(&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(struct hfa384x_caplevel)); 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 */ le16_to_cpus(&hw->cap_act_sta_cfi.role); le16_to_cpus(&hw->cap_act_sta_cfi.id); le16_to_cpus(&hw->cap_act_sta_cfi.variant); le16_to_cpus(&hw->cap_act_sta_cfi.bottom); le16_to_cpus(&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(struct hfa384x_caplevel)); 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 */ le16_to_cpus(&hw->cap_act_sta_mfi.role); le16_to_cpus(&hw->cap_act_sta_mfi.id); le16_to_cpus(&hw->cap_act_sta_mfi.variant); le16_to_cpus(&hw->cap_act_sta_mfi.bottom); le16_to_cpus(&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(struct wlandevice *wlandev) { struct hfa384x *hw = wlandev->priv; /* Set the maximum frame size */ return hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFMAXDATALEN, WLAN_DATA_MAXLEN); } static int prism2sta_setmulticast(struct wlandevice *wlandev, struct net_device *dev) { int result = 0; struct hfa384x *hw = 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(struct wlandevice *wlandev, struct hfa384x_inf_frame *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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { struct hfa384x *hw = wlandev->priv; __le16 *src16; u32 *dst; __le32 *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(struct hfa384x_comm_tallies_32) / sizeof(u32); if (inf->framelen > 22) { dst = (u32 *)&hw->tallies; src32 = (__le32 *)&inf->info.commtallies32; for (i = 0; i < cnt; i++, dst++, src32++) *dst += le32_to_cpu(*src32); } else { dst = (u32 *)&hw->tallies; src16 = (__le16 *)&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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { struct hfa384x *hw = wlandev->priv; int nbss; struct hfa384x_scan_result *sr = &inf->info.scanresult; int i; struct hfa384x_join_request_data 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(struct hfa384x_scan_result_sub); /* 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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { struct hfa384x *hw = 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(*inf), 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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { struct hfa384x *hw = wlandev->priv; unsigned int i, n; hw->channel_info.results.scanchannels = inf->info.chinforesult.scanchannels; for (i = 0, n = 0; i < HFA384x_CHINFORESULT_MAX; i++) { struct hfa384x_ch_info_result_sub *result; struct hfa384x_ch_info_result_sub *chinforesult; int chan; if (!(hw->channel_info.results.scanchannels & (1 << i))) continue; result = &inf->info.chinforesult.result[n]; chan = result->chid - 1; if (chan < 0 || chan >= HFA384x_CHINFORESULT_MAX) continue; chinforesult = &hw->channel_info.results.result[chan]; chinforesult->chid = chan; chinforesult->anl = result->anl; chinforesult->pnl = result->pnl; chinforesult->active = 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) { struct hfa384x *hw = container_of(data, struct hfa384x, link_bh); struct wlandevice *wlandev = hw->wlandev; struct hfa384x_bytestr32 ssid; int result; /* First let's process the auth frames */ { struct sk_buff *skb; struct hfa384x_inf_frame *inf; while ((skb = skb_dequeue(&hw->authq))) { inf = (struct hfa384x_inf_frame *)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, (struct p80211pstrd *)&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 * 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, (struct p80211pstrd *)&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) { struct hfa384x_join_request_data 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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { struct hfa384x *hw = 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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { struct hfa384x *hw = wlandev->priv; struct hfa384x_assoc_status rec; int i; memcpy(&rec, &inf->info.assocstatus, sizeof(rec)); le16_to_cpus(&rec.assocstatus); le16_to_cpus(&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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { struct hfa384x *hw = 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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { struct hfa384x *hw = wlandev->priv; struct hfa384x_authenticate_station_data 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 = cpu_to_le16(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 = cpu_to_le16(P80211ENUM_status_successful); break; } break; case WLAN_ACCESS_ALL: /* * Allow all authentications. */ rec.status = cpu_to_le16(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 = cpu_to_le16(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 = cpu_to_le16(P80211ENUM_status_successful); for (i = 0; i < cnt; i++, addr += ETH_ALEN) if (ether_addr_equal(rec.address, addr)) { rec.status = cpu_to_le16(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 == cpu_to_le16(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 = cpu_to_le16(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.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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { struct hfa384x *hw = 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(struct wlandevice *wlandev, struct hfa384x_inf_frame *inf) { le16_to_cpus(&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(struct wlandevice *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(struct wlandevice *wlandev, u16 status) { pr_debug("Tx Complete, status=0x%04x\n", status); /* update linux network stats */ wlandev->netdev->stats.tx_packets++; } /* * prism2sta_ev_alloc * * Handles the Alloc event. * * Arguments: * wlandev wlan device structure * * Returns: * nothing * * Side effects: * * Call context: * interrupt */ void prism2sta_ev_alloc(struct wlandevice *wlandev) { netif_wake_queue(wlandev->netdev); } /* * create_wlan * * Called at module init time. This creates the struct wlandevice structure * and initializes it with relevant bits. * * Arguments: * none * * Returns: * the created struct wlandevice structure. * * Side effects: * also allocates the priv/hw structures. * * Call context: * process thread * */ static struct wlandevice *create_wlan(void) { struct wlandevice *wlandev = NULL; struct hfa384x *hw = NULL; /* Alloc our structures */ wlandev = kzalloc(sizeof(*wlandev), GFP_KERNEL); hw = kzalloc(sizeof(*hw), GFP_KERNEL); if (!wlandev || !hw) { 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) { struct hfa384x *hw = container_of(data, struct hfa384x, commsqual_bh); struct wlandevice *wlandev = hw->wlandev; struct hfa384x_bytestr32 ssid; struct p80211msg_dot11req_mibget msg; struct p80211item_uint32 *mibitem = (struct p80211item_uint32 *) &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_curr_bss), le16_to_cpu(hw->qual.asl_curr_bss), le16_to_cpu(hw->qual.anl_curr_fc)); } /* Get the signal rate */ msg.msgcode = DIDMSG_DOT11REQ_MIBGET; mibitem->did = DIDMIB_P2_MAC_CURRENTTXRATE; 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, (struct p80211pstrd *)&wlandev->ssid); /* Reschedule timer */ mod_timer(&hw->commsqual_timer, jiffies + HZ); } void prism2sta_commsqual_timer(struct timer_list *t) { struct hfa384x *hw = from_timer(hw, t, commsqual_timer); schedule_work(&hw->commsqual_bh); }