sys/dev/netif/iwm/if_iwm_time_event.c

   1 /*      $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */
   2
   3 /*
   4  * Copyright (c) 2014 genua mbh <info@genua.de>
   5  * Copyright (c) 2014 Fixup Software Ltd.
   6  *
   7  * Permission to use, copy, modify, and distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 /*-
  21  * Based on BSD-licensed source modules in the Linux iwlwifi driver,
  22  * which were used as the reference documentation for this implementation.
  23  *
  24  * Driver version we are currently based off of is
  25  * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
  26  *
  27  ***********************************************************************
  28  *
  29  * This file is provided under a dual BSD/GPLv2 license.  When using or
  30  * redistributing this file, you may do so under either license.
  31  *
  32  * GPL LICENSE SUMMARY
  33  *
  34  * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
  35  *
  36  * This program is free software; you can redistribute it and/or modify
  37  * it under the terms of version 2 of the GNU General Public License as
  38  * published by the Free Software Foundation.
  39  *
  40  * This program is distributed in the hope that it will be useful, but
  41  * WITHOUT ANY WARRANTY; without even the implied warranty of
  42  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  43  * General Public License for more details.
  44  *
  45  * You should have received a copy of the GNU General Public License
  46  * along with this program; if not, write to the Free Software
  47  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  48  * USA
  49  *
  50  * The full GNU General Public License is included in this distribution
  51  * in the file called COPYING.
  52  *
  53  * Contact Information:
  54  *  Intel Linux Wireless <ilw@linux.intel.com>
  55  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  56  *
  57  *
  58  * BSD LICENSE
  59  *
  60  * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
  61  * All rights reserved.
  62  *
  63  * Redistribution and use in source and binary forms, with or without
  64  * modification, are permitted provided that the following conditions
  65  * are met:
  66  *
  67  *  * Redistributions of source code must retain the above copyright
  68  *    notice, this list of conditions and the following disclaimer.
  69  *  * Redistributions in binary form must reproduce the above copyright
  70  *    notice, this list of conditions and the following disclaimer in
  71  *    the documentation and/or other materials provided with the
  72  *    distribution.
  73  *  * Neither the name Intel Corporation nor the names of its
  74  *    contributors may be used to endorse or promote products derived
  75  *    from this software without specific prior written permission.
  76  *
  77  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  78  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  79  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  80  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  81  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  82  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  83  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  84  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  85  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  86  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  87  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  88  */
  89
  90 /*-
  91  * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr>
  92  *
  93  * Permission to use, copy, modify, and distribute this software for any
  94  * purpose with or without fee is hereby granted, provided that the above
  95  * copyright notice and this permission notice appear in all copies.
  96  *
  97  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  98  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  99  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 100  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 101  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 102  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 103  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 104  */
 105 #include <sys/cdefs.h>
 106 __FBSDID("$FreeBSD$");
 107
 108 #include <sys/param.h>
 109 #include <sys/bus.h>
 110 #include <sys/endian.h>
 111 #include <sys/firmware.h>
 112 #include <sys/kernel.h>
 113 #include <sys/malloc.h>
 114 #include <sys/mbuf.h>
 115 #include <sys/rman.h>
 116 #include <sys/sysctl.h>
 117 #include <sys/linker.h>
 118
 119 #include <machine/endian.h>
 120
 121 #include <bus/pci/pcivar.h>
 122 #include <bus/pci/pcireg.h>
 123
 124 #include <net/bpf.h>
 125
 126 #include <net/if.h>
 127 #include <net/if_var.h>
 128 #include <net/if_arp.h>
 129 #include <net/if_dl.h>
 130 #include <net/if_media.h>
 131 #include <net/if_types.h>
 132
 133 #include <netinet/in.h>
 134 #include <netinet/in_systm.h>
 135 #include <netinet/if_ether.h>
 136 #include <netinet/ip.h>
 137
 138 #include <netproto/802_11/ieee80211_var.h>
 139 #include <netproto/802_11/ieee80211_regdomain.h>
 140 #include <netproto/802_11/ieee80211_ratectl.h>
 141 #include <netproto/802_11/ieee80211_radiotap.h>
 142
 143 #include "if_iwmreg.h"
 144 #include "if_iwmvar.h"
 145 #include "if_iwm_debug.h"
 146 #include "if_iwm_util.h"
 147 #include "if_iwm_pcie_trans.h"
 148 #include "if_iwm_time_event.h"
 149
 150 /*
 151  * For the high priority TE use a time event type that has similar priority to
 152  * the FW's action scan priority.
 153  */
 154 #define IWM_MVM_ROC_TE_TYPE_NORMAL IWM_TE_P2P_DEVICE_DISCOVERABLE
 155 #define IWM_MVM_ROC_TE_TYPE_MGMT_TX IWM_TE_P2P_CLIENT_ASSOC
 156
 157 static int
 158 iwm_mvm_time_event_send_add(struct iwm_softc *sc, struct iwm_vap *ivp,
 159         void *te_data, struct iwm_time_event_cmd *te_cmd)
 160 {
 161         int ret;
 162
 163         IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
 164             "Add new TE, duration %d TU\n", le32toh(te_cmd->duration));
 165
 166         ret = iwm_mvm_send_cmd_pdu(sc, IWM_TIME_EVENT_CMD, IWM_CMD_SYNC,
 167             sizeof(*te_cmd), te_cmd);
 168         if (ret) {
 169                 IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
 170                     "%s: Couldn't send IWM_TIME_EVENT_CMD: %d\n",
 171                     __func__, ret);
 172         }
 173
 174         return ret;
 175 }
 176
 177 void
 178 iwm_mvm_protect_session(struct iwm_softc *sc, struct iwm_vap *ivp,
 179         uint32_t duration, uint32_t max_delay)
 180 {
 181         struct iwm_time_event_cmd time_cmd = {};
 182
 183         time_cmd.action = htole32(IWM_FW_CTXT_ACTION_ADD);
 184         time_cmd.id_and_color =
 185             htole32(IWM_FW_CMD_ID_AND_COLOR(ivp->id, ivp->color));
 186         time_cmd.id = htole32(IWM_TE_BSS_STA_AGGRESSIVE_ASSOC);
 187
 188         time_cmd.apply_time = htole32(0);
 189
 190         time_cmd.max_frags = IWM_TE_V2_FRAG_NONE;
 191         time_cmd.max_delay = htole32(max_delay);
 192         /* TODO: why do we need to interval = bi if it is not periodic? */
 193         time_cmd.interval = htole32(1);
 194         time_cmd.duration = htole32(duration);
 195         time_cmd.repeat = 1;
 196         time_cmd.policy = htole16(IWM_TE_V2_NOTIF_HOST_EVENT_START |
 197                                   IWM_TE_V2_NOTIF_HOST_EVENT_END |
 198                                   IWM_T2_V2_START_IMMEDIATELY);
 199
 200         iwm_mvm_time_event_send_add(sc, ivp, /*te_data*/NULL, &time_cmd);
 201 }