1 /* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */
4 * Copyright (c) 2014 genua mbh <info@genua.de>
5 * Copyright (c) 2014 Fixup Software Ltd.
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.
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.
21 * Based on BSD-licensed source modules in the Linux iwlwifi driver,
22 * which were used as the reference documentation for this implementation.
24 * Driver version we are currently based off of is
25 * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
27 ***********************************************************************
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.
34 * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
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.
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.
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,
50 * The full GNU General Public License is included in this distribution
51 * in the file called COPYING.
53 * Contact Information:
54 * Intel Linux Wireless <ilw@linux.intel.com>
55 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
60 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
61 * All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
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
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.
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.
91 * Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr>
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.
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.
105 #include <sys/cdefs.h>
106 __FBSDID("$FreeBSD$");
108 #include "opt_wlan.h"
111 #include <sys/param.h>
113 #include <sys/conf.h>
114 #include <sys/endian.h>
115 #include <sys/firmware.h>
116 #include <sys/kernel.h>
117 #include <sys/malloc.h>
118 #include <sys/mbuf.h>
119 #include <sys/mutex.h>
120 #include <sys/module.h>
121 #include <sys/proc.h>
122 #include <sys/rman.h>
123 #include <sys/socket.h>
124 #include <sys/sockio.h>
125 #include <sys/sysctl.h>
126 #include <sys/linker.h>
128 #include <machine/bus.h>
129 #include <machine/endian.h>
130 #include <machine/resource.h>
132 #include <dev/pci/pcivar.h>
133 #include <dev/pci/pcireg.h>
138 #include <net/if_var.h>
139 #include <net/if_arp.h>
140 #include <net/if_dl.h>
141 #include <net/if_media.h>
142 #include <net/if_types.h>
144 #include <netinet/in.h>
145 #include <netinet/in_systm.h>
146 #include <netinet/if_ether.h>
147 #include <netinet/ip.h>
149 #include <net80211/ieee80211_var.h>
150 #include <net80211/ieee80211_regdomain.h>
151 #include <net80211/ieee80211_ratectl.h>
152 #include <net80211/ieee80211_radiotap.h>
154 #include <dev/iwm/if_iwmreg.h>
155 #include <dev/iwm/if_iwmvar.h>
156 #include <dev/iwm/if_iwm_debug.h>
157 #include <dev/iwm/if_iwm_util.h>
158 #include <dev/iwm/if_iwm_phy_ctxt.h>
161 * BEGIN iwlwifi/mvm/phy-ctxt.c
165 * Construct the generic fields of the PHY context command
168 iwm_mvm_phy_ctxt_cmd_hdr(struct iwm_softc *sc, struct iwm_mvm_phy_ctxt *ctxt,
169 struct iwm_phy_context_cmd *cmd, uint32_t action, uint32_t apply_time)
171 memset(cmd, 0, sizeof(struct iwm_phy_context_cmd));
173 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD,
174 "%s: id=%d, colour=%d, action=%d, apply_time=%d\n",
181 cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(ctxt->id,
183 cmd->action = htole32(action);
184 cmd->apply_time = htole32(apply_time);
188 * Add the phy configuration to the PHY context command
191 iwm_mvm_phy_ctxt_cmd_data(struct iwm_softc *sc,
192 struct iwm_phy_context_cmd *cmd, struct ieee80211_channel *chan,
193 uint8_t chains_static, uint8_t chains_dynamic)
195 struct ieee80211com *ic = &sc->sc_ic;
196 uint8_t active_cnt, idle_cnt;
198 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD,
199 "%s: 2ghz=%d, channel=%d, chains static=0x%x, dynamic=0x%x, "
200 "rx_ant=0x%x, tx_ant=0x%x\n",
202 !! IEEE80211_IS_CHAN_2GHZ(chan),
203 ieee80211_chan2ieee(ic, chan),
206 iwm_mvm_get_valid_rx_ant(sc),
207 iwm_mvm_get_valid_tx_ant(sc));
210 cmd->ci.band = IEEE80211_IS_CHAN_2GHZ(chan) ?
211 IWM_PHY_BAND_24 : IWM_PHY_BAND_5;
213 cmd->ci.channel = ieee80211_chan2ieee(ic, chan);
214 cmd->ci.width = IWM_PHY_VHT_CHANNEL_MODE20;
215 cmd->ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_BELOW;
217 /* Set rx the chains */
218 idle_cnt = chains_static;
219 active_cnt = chains_dynamic;
221 /* In scenarios where we only ever use a single-stream rates,
222 * i.e. legacy 11b/g/a associations, single-stream APs or even
223 * static SMPS, enable both chains to get diversity, improving
224 * the case where we're far enough from the AP that attenuation
225 * between the two antennas is sufficiently different to impact
228 if (active_cnt == 1 && iwm_mvm_rx_diversity_allowed(sc)) {
233 cmd->rxchain_info = htole32(iwm_mvm_get_valid_rx_ant(sc) <<
234 IWM_PHY_RX_CHAIN_VALID_POS);
235 cmd->rxchain_info |= htole32(idle_cnt << IWM_PHY_RX_CHAIN_CNT_POS);
236 cmd->rxchain_info |= htole32(active_cnt <<
237 IWM_PHY_RX_CHAIN_MIMO_CNT_POS);
239 cmd->txchain_info = htole32(iwm_mvm_get_valid_tx_ant(sc));
244 * only if something in the configuration changed: in case that this is the
245 * first time that the phy configuration is applied or in case that the phy
246 * configuration changed from the previous apply.
249 iwm_mvm_phy_ctxt_apply(struct iwm_softc *sc,
250 struct iwm_mvm_phy_ctxt *ctxt,
251 uint8_t chains_static, uint8_t chains_dynamic,
252 uint32_t action, uint32_t apply_time)
254 struct iwm_phy_context_cmd cmd;
257 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD,
258 "%s: called; channel=%p\n",
262 /* Set the command header fields */
263 iwm_mvm_phy_ctxt_cmd_hdr(sc, ctxt, &cmd, action, apply_time);
265 /* Set the command data */
266 iwm_mvm_phy_ctxt_cmd_data(sc, &cmd, ctxt->channel,
267 chains_static, chains_dynamic);
269 ret = iwm_mvm_send_cmd_pdu(sc, IWM_PHY_CONTEXT_CMD, IWM_CMD_SYNC,
270 sizeof(struct iwm_phy_context_cmd), &cmd);
272 device_printf(sc->sc_dev,
273 "PHY ctxt cmd error. ret=%d\n", ret);
279 * Send a command to add a PHY context based on the current HW configuration.
282 iwm_mvm_phy_ctxt_add(struct iwm_softc *sc, struct iwm_mvm_phy_ctxt *ctxt,
283 struct ieee80211_channel *chan,
284 uint8_t chains_static, uint8_t chains_dynamic)
286 ctxt->channel = chan;
288 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD,
289 "%s: called; channel=%d\n",
291 ieee80211_chan2ieee(&sc->sc_ic, chan));
293 return iwm_mvm_phy_ctxt_apply(sc, ctxt,
294 chains_static, chains_dynamic, IWM_FW_CTXT_ACTION_ADD, 0);
298 * Send a command to modify the PHY context based on the current HW
299 * configuration. Note that the function does not check that the configuration
303 iwm_mvm_phy_ctxt_changed(struct iwm_softc *sc,
304 struct iwm_mvm_phy_ctxt *ctxt, struct ieee80211_channel *chan,
305 uint8_t chains_static, uint8_t chains_dynamic)
307 ctxt->channel = chan;
309 IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD,
310 "%s: called; channel=%d\n",
312 ieee80211_chan2ieee(&sc->sc_ic, chan));
314 return iwm_mvm_phy_ctxt_apply(sc, ctxt,
315 chains_static, chains_dynamic, IWM_FW_CTXT_ACTION_MODIFY, 0);
319 * END iwlwifi/mvm/phy-ctxt.c