/* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */ /* * Copyright (c) 2014 genua mbh * Copyright (c) 2014 Fixup Software Ltd. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /*- * Based on BSD-licensed source modules in the Linux iwlwifi driver, * which were used as the reference documentation for this implementation. * * Driver version we are currently based off of is * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd) * *********************************************************************** * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, * USA * * The full GNU General Public License is included in this distribution * in the file called COPYING. * * Contact Information: * Intel Linux Wireless * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * * * BSD LICENSE * * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /*- * Copyright (c) 2007-2010 Damien Bergamini * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "if_iwmreg.h" #include "if_iwmvar.h" #include "if_iwm_debug.h" #include "if_iwm_util.h" #include "if_iwm_phy_ctxt.h" /* * Construct the generic fields of the PHY context command */ static void iwm_mvm_phy_ctxt_cmd_hdr(struct iwm_softc *sc, struct iwm_mvm_phy_ctxt *ctxt, struct iwm_phy_context_cmd *cmd, uint32_t action, uint32_t apply_time) { memset(cmd, 0, sizeof(struct iwm_phy_context_cmd)); IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD, "%s: id=%d, colour=%d, action=%d, apply_time=%d\n", __func__, ctxt->id, ctxt->color, action, apply_time); cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(ctxt->id, ctxt->color)); cmd->action = htole32(action); cmd->apply_time = htole32(apply_time); } /* * Add the phy configuration to the PHY context command */ static void iwm_mvm_phy_ctxt_cmd_data(struct iwm_softc *sc, struct iwm_phy_context_cmd *cmd, struct ieee80211_channel *chan, uint8_t chains_static, uint8_t chains_dynamic) { struct ieee80211com *ic = sc->sc_ic; uint8_t active_cnt, idle_cnt; IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD, "%s: 2ghz=%d, channel=%d, chains static=0x%x, dynamic=0x%x, " "rx_ant=0x%x, tx_ant=0x%x\n", __func__, !! IEEE80211_IS_CHAN_2GHZ(chan), ieee80211_chan2ieee(ic, chan), chains_static, chains_dynamic, IWM_FW_VALID_RX_ANT(sc), IWM_FW_VALID_TX_ANT(sc)); cmd->ci.band = IEEE80211_IS_CHAN_2GHZ(chan) ? IWM_PHY_BAND_24 : IWM_PHY_BAND_5; cmd->ci.channel = ieee80211_chan2ieee(ic, chan); cmd->ci.width = IWM_PHY_VHT_CHANNEL_MODE20; cmd->ci.ctrl_pos = IWM_PHY_VHT_CTRL_POS_1_BELOW; /* Set rx the chains */ idle_cnt = chains_static; active_cnt = chains_dynamic; cmd->rxchain_info = htole32(IWM_FW_VALID_RX_ANT(sc) << IWM_PHY_RX_CHAIN_VALID_POS); cmd->rxchain_info |= htole32(idle_cnt << IWM_PHY_RX_CHAIN_CNT_POS); cmd->rxchain_info |= htole32(active_cnt << IWM_PHY_RX_CHAIN_MIMO_CNT_POS); cmd->txchain_info = htole32(IWM_FW_VALID_TX_ANT(sc)); } /* * Send a command * only if something in the configuration changed: in case that this is the * first time that the phy configuration is applied or in case that the phy * configuration changed from the previous apply. */ static int iwm_mvm_phy_ctxt_apply(struct iwm_softc *sc, struct iwm_mvm_phy_ctxt *ctxt, uint8_t chains_static, uint8_t chains_dynamic, uint32_t action, uint32_t apply_time) { struct iwm_phy_context_cmd cmd; int ret; IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD, "%s: called; channel=%p\n", __func__, ctxt->channel); /* Set the command header fields */ iwm_mvm_phy_ctxt_cmd_hdr(sc, ctxt, &cmd, action, apply_time); /* Set the command data */ iwm_mvm_phy_ctxt_cmd_data(sc, &cmd, ctxt->channel, chains_static, chains_dynamic); ret = iwm_mvm_send_cmd_pdu(sc, IWM_PHY_CONTEXT_CMD, IWM_CMD_SYNC, sizeof(struct iwm_phy_context_cmd), &cmd); if (ret) { device_printf(sc->sc_dev, "PHY ctxt cmd error. ret=%d\n", ret); } return ret; } /* * Send a command to add a PHY context based on the current HW configuration. */ int iwm_mvm_phy_ctxt_add(struct iwm_softc *sc, struct iwm_mvm_phy_ctxt *ctxt, struct ieee80211_channel *chan, uint8_t chains_static, uint8_t chains_dynamic) { ctxt->channel = chan; IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD, "%s: called; channel=%d\n", __func__, ieee80211_chan2ieee(sc->sc_ic, chan)); return iwm_mvm_phy_ctxt_apply(sc, ctxt, chains_static, chains_dynamic, IWM_FW_CTXT_ACTION_ADD, 0); } /* * Send a command to modify the PHY context based on the current HW * configuration. Note that the function does not check that the configuration * changed. */ int iwm_mvm_phy_ctxt_changed(struct iwm_softc *sc, struct iwm_mvm_phy_ctxt *ctxt, struct ieee80211_channel *chan, uint8_t chains_static, uint8_t chains_dynamic) { ctxt->channel = chan; IWM_DPRINTF(sc, IWM_DEBUG_RESET | IWM_DEBUG_CMD, "%s: called; channel=%d\n", __func__, ieee80211_chan2ieee(sc->sc_ic, chan)); return iwm_mvm_phy_ctxt_apply(sc, ctxt, chains_static, chains_dynamic, IWM_FW_CTXT_ACTION_MODIFY, 0); }