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 "opt_wlan.h" 109 110 #include <sys/param.h> 111 #include <sys/bus.h> 112 #include <sys/conf.h> 113 #include <sys/endian.h> 114 #include <sys/firmware.h> 115 #include <sys/kernel.h> 116 #include <sys/malloc.h> 117 #include <sys/mbuf.h> 118 #include <sys/mutex.h> 119 #include <sys/module.h> 120 #include <sys/proc.h> 121 #include <sys/rman.h> 122 #include <sys/socket.h> 123 #include <sys/sockio.h> 124 #include <sys/sysctl.h> 125 #include <sys/linker.h> 126 127 #include <machine/bus.h> 128 #include <machine/endian.h> 129 #include <machine/resource.h> 130 131 #include <dev/pci/pcivar.h> 132 #include <dev/pci/pcireg.h> 133 134 #include <net/bpf.h> 135 136 #include <net/if.h> 137 #include <net/if_var.h> 138 #include <net/if_arp.h> 139 #include <net/if_dl.h> 140 #include <net/if_media.h> 141 #include <net/if_types.h> 142 143 #include <netinet/in.h> 144 #include <netinet/in_systm.h> 145 #include <netinet/if_ether.h> 146 #include <netinet/ip.h> 147 148 #include <net80211/ieee80211_var.h> 149 #include <net80211/ieee80211_regdomain.h> 150 #include <net80211/ieee80211_ratectl.h> 151 #include <net80211/ieee80211_radiotap.h> 152 153 #include <dev/iwm/if_iwmreg.h> 154 #include <dev/iwm/if_iwmvar.h> 155 #include <dev/iwm/if_iwm_debug.h> 156 #include <dev/iwm/if_iwm_util.h> 157 #include <dev/iwm/if_iwm_pcie_trans.h> 158 #include <dev/iwm/if_iwm_time_event.h> 159 160 /* 161 * For the high priority TE use a time event type that has similar priority to 162 * the FW's action scan priority. 163 */ 164 #define IWM_MVM_ROC_TE_TYPE_NORMAL IWM_TE_P2P_DEVICE_DISCOVERABLE 165 #define IWM_MVM_ROC_TE_TYPE_MGMT_TX IWM_TE_P2P_CLIENT_ASSOC 166 167 /* used to convert from time event API v2 to v1 */ 168 #define IWM_TE_V2_DEP_POLICY_MSK (IWM_TE_V2_DEP_OTHER | IWM_TE_V2_DEP_TSF |\ 169 IWM_TE_V2_EVENT_SOCIOPATHIC) 170 static inline uint16_t 171 iwm_te_v2_get_notify(uint16_t policy) 172 { 173 return le16toh(policy) & IWM_TE_V2_NOTIF_MSK; 174 } 175 176 static inline uint16_t 177 iwm_te_v2_get_dep_policy(uint16_t policy) 178 { 179 return (le16toh(policy) & IWM_TE_V2_DEP_POLICY_MSK) >> 180 IWM_TE_V2_PLACEMENT_POS; 181 } 182 183 static inline uint16_t 184 iwm_te_v2_get_absence(uint16_t policy) 185 { 186 return (le16toh(policy) & IWM_TE_V2_ABSENCE) >> IWM_TE_V2_ABSENCE_POS; 187 } 188 189 static void 190 iwm_mvm_te_v2_to_v1(const struct iwm_time_event_cmd_v2 *cmd_v2, 191 struct iwm_time_event_cmd_v1 *cmd_v1) 192 { 193 cmd_v1->id_and_color = cmd_v2->id_and_color; 194 cmd_v1->action = cmd_v2->action; 195 cmd_v1->id = cmd_v2->id; 196 cmd_v1->apply_time = cmd_v2->apply_time; 197 cmd_v1->max_delay = cmd_v2->max_delay; 198 cmd_v1->depends_on = cmd_v2->depends_on; 199 cmd_v1->interval = cmd_v2->interval; 200 cmd_v1->duration = cmd_v2->duration; 201 if (cmd_v2->repeat == IWM_TE_V2_REPEAT_ENDLESS) 202 cmd_v1->repeat = htole32(IWM_TE_V1_REPEAT_ENDLESS); 203 else 204 cmd_v1->repeat = htole32(cmd_v2->repeat); 205 cmd_v1->max_frags = htole32(cmd_v2->max_frags); 206 cmd_v1->interval_reciprocal = 0; /* unused */ 207 208 cmd_v1->dep_policy = htole32(iwm_te_v2_get_dep_policy(cmd_v2->policy)); 209 cmd_v1->is_present = htole32(!iwm_te_v2_get_absence(cmd_v2->policy)); 210 cmd_v1->notify = htole32(iwm_te_v2_get_notify(cmd_v2->policy)); 211 } 212 213 static int 214 iwm_mvm_send_time_event_cmd(struct iwm_softc *sc, 215 const struct iwm_time_event_cmd_v2 *cmd) 216 { 217 struct iwm_time_event_cmd_v1 cmd_v1; 218 219 if (sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_TIME_EVENT_API_V2) 220 return iwm_mvm_send_cmd_pdu(sc, IWM_TIME_EVENT_CMD, 221 IWM_CMD_SYNC, sizeof(*cmd), cmd); 222 223 iwm_mvm_te_v2_to_v1(cmd, &cmd_v1); 224 return iwm_mvm_send_cmd_pdu(sc, IWM_TIME_EVENT_CMD, IWM_CMD_SYNC, 225 sizeof(cmd_v1), &cmd_v1); 226 } 227 228 static int 229 iwm_mvm_time_event_send_add(struct iwm_softc *sc, struct iwm_node *in, 230 void *te_data, struct iwm_time_event_cmd_v2 *te_cmd) 231 { 232 int ret; 233 234 IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET, 235 "Add new TE, duration %d TU\n", le32toh(te_cmd->duration)); 236 237 ret = iwm_mvm_send_time_event_cmd(sc, te_cmd); 238 if (ret) { 239 IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET, 240 "%s: Couldn't send IWM_TIME_EVENT_CMD: %d\n", 241 __func__, ret); 242 } 243 244 return ret; 245 } 246 247 void 248 iwm_mvm_protect_session(struct iwm_softc *sc, struct iwm_node *in, 249 uint32_t duration, uint32_t max_delay) 250 { 251 struct iwm_time_event_cmd_v2 time_cmd; 252 253 memset(&time_cmd, 0, sizeof(time_cmd)); 254 255 time_cmd.action = htole32(IWM_FW_CTXT_ACTION_ADD); 256 time_cmd.id_and_color = 257 htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID, IWM_DEFAULT_COLOR)); 258 time_cmd.id = htole32(IWM_TE_BSS_STA_AGGRESSIVE_ASSOC); 259 260 time_cmd.apply_time = htole32(0); 261 262 time_cmd.max_frags = IWM_TE_V2_FRAG_NONE; 263 time_cmd.max_delay = htole32(max_delay); 264 /* TODO: why do we need to interval = bi if it is not periodic? */ 265 time_cmd.interval = htole32(1); 266 time_cmd.duration = htole32(duration); 267 time_cmd.repeat = 1; 268 time_cmd.policy 269 = htole32(IWM_TE_V2_NOTIF_HOST_EVENT_START | 270 IWM_TE_V2_NOTIF_HOST_EVENT_END | 271 IWM_T2_V2_START_IMMEDIATELY); 272 273 iwm_mvm_time_event_send_add(sc, in, /*te_data*/NULL, &time_cmd); 274 } 275