9b5ee0c6a3
Submitted by: Kevin Bowling (kevin.bowling@kev009.com) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D6967
484 lines
14 KiB
C
484 lines
14 KiB
C
/* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */
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/*
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* Copyright (c) 2014 genua mbh <info@genua.de>
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* Copyright (c) 2014 Fixup Software Ltd.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*-
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* Based on BSD-licensed source modules in the Linux iwlwifi driver,
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* which were used as the reference documentation for this implementation.
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*
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* Driver version we are currently based off of is
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* Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
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*
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***********************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*
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* BSD LICENSE
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*
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* Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 2007-2010 Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_wlan.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/endian.h>
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#include <sys/firmware.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/mutex.h>
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#include <sys/module.h>
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#include <sys/proc.h>
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#include <sys/rman.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/linker.h>
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#include <machine/bus.h>
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#include <machine/endian.h>
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#include <machine/resource.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/if_ether.h>
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#include <netinet/ip.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_regdomain.h>
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#include <net80211/ieee80211_ratectl.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <dev/iwm/if_iwmreg.h>
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#include <dev/iwm/if_iwmvar.h>
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#include <dev/iwm/if_iwm_debug.h>
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#include <dev/iwm/if_iwm_util.h>
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#include <dev/iwm/if_iwm_phy_db.h>
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/*
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* BEGIN iwl-phy-db.c
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*/
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/*
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* get phy db section: returns a pointer to a phy db section specified by
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* type and channel group id.
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*/
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static struct iwm_phy_db_entry *
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iwm_phy_db_get_section(struct iwm_softc *sc,
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enum iwm_phy_db_section_type type, uint16_t chg_id)
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{
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struct iwm_phy_db *phy_db = &sc->sc_phy_db;
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if (type >= IWM_PHY_DB_MAX)
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return NULL;
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switch (type) {
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case IWM_PHY_DB_CFG:
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return &phy_db->cfg;
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case IWM_PHY_DB_CALIB_NCH:
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return &phy_db->calib_nch;
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case IWM_PHY_DB_CALIB_CHG_PAPD:
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if (chg_id >= IWM_NUM_PAPD_CH_GROUPS)
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return NULL;
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return &phy_db->calib_ch_group_papd[chg_id];
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case IWM_PHY_DB_CALIB_CHG_TXP:
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if (chg_id >= IWM_NUM_TXP_CH_GROUPS)
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return NULL;
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return &phy_db->calib_ch_group_txp[chg_id];
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default:
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return NULL;
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}
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return NULL;
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}
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int
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iwm_phy_db_set_section(struct iwm_softc *sc,
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struct iwm_calib_res_notif_phy_db *phy_db_notif)
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{
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enum iwm_phy_db_section_type type = le16toh(phy_db_notif->type);
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uint16_t size = le16toh(phy_db_notif->length);
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struct iwm_phy_db_entry *entry;
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uint16_t chg_id = 0;
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if (type == IWM_PHY_DB_CALIB_CHG_PAPD ||
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type == IWM_PHY_DB_CALIB_CHG_TXP)
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chg_id = le16toh(*(uint16_t *)phy_db_notif->data);
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entry = iwm_phy_db_get_section(sc, type, chg_id);
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if (!entry)
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return EINVAL;
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if (entry->data)
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free(entry->data, M_DEVBUF);
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entry->data = malloc(size, M_DEVBUF, M_NOWAIT);
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if (!entry->data) {
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entry->size = 0;
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return ENOMEM;
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}
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memcpy(entry->data, phy_db_notif->data, size);
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entry->size = size;
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IWM_DPRINTF(sc, IWM_DEBUG_RESET,
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"%s(%d): [PHYDB]SET: Type %d , Size: %d, data: %p\n",
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__func__, __LINE__, type, size, entry->data);
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return 0;
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}
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static int
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iwm_is_valid_channel(uint16_t ch_id)
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{
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if (ch_id <= 14 ||
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(36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) ||
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(100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) ||
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(145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1))
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return 1;
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return 0;
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}
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static uint8_t
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iwm_ch_id_to_ch_index(uint16_t ch_id)
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{
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if (!iwm_is_valid_channel(ch_id))
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return 0xff;
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if (ch_id <= 14)
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return ch_id - 1;
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if (ch_id <= 64)
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return (ch_id + 20) / 4;
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if (ch_id <= 140)
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return (ch_id - 12) / 4;
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return (ch_id - 13) / 4;
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}
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static uint16_t
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iwm_channel_id_to_papd(uint16_t ch_id)
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{
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if (!iwm_is_valid_channel(ch_id))
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return 0xff;
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if (1 <= ch_id && ch_id <= 14)
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return 0;
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if (36 <= ch_id && ch_id <= 64)
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return 1;
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if (100 <= ch_id && ch_id <= 140)
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return 2;
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return 3;
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}
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static uint16_t
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iwm_channel_id_to_txp(struct iwm_softc *sc, uint16_t ch_id)
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{
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struct iwm_phy_db *phy_db = &sc->sc_phy_db;
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struct iwm_phy_db_chg_txp *txp_chg;
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int i;
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uint8_t ch_index = iwm_ch_id_to_ch_index(ch_id);
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if (ch_index == 0xff)
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return 0xff;
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for (i = 0; i < IWM_NUM_TXP_CH_GROUPS; i++) {
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txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
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if (!txp_chg)
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return 0xff;
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/*
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* Looking for the first channel group that its max channel is
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* higher then wanted channel.
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*/
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if (le16toh(txp_chg->max_channel_idx) >= ch_index)
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return i;
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}
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return 0xff;
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}
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static int
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iwm_phy_db_get_section_data(struct iwm_softc *sc,
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uint32_t type, uint8_t **data, uint16_t *size, uint16_t ch_id)
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{
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struct iwm_phy_db_entry *entry;
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uint16_t ch_group_id = 0;
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IWM_DPRINTF(sc, IWM_DEBUG_RESET, "->%s\n", __func__);
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/* find wanted channel group */
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if (type == IWM_PHY_DB_CALIB_CHG_PAPD)
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ch_group_id = iwm_channel_id_to_papd(ch_id);
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else if (type == IWM_PHY_DB_CALIB_CHG_TXP)
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ch_group_id = iwm_channel_id_to_txp(sc, ch_id);
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entry = iwm_phy_db_get_section(sc, type, ch_group_id);
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if (!entry)
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return EINVAL;
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*data = entry->data;
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*size = entry->size;
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IWM_DPRINTF(sc, IWM_DEBUG_RESET,
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"%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
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__func__, __LINE__, type, *size);
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return 0;
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}
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static int
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iwm_send_phy_db_cmd(struct iwm_softc *sc, uint16_t type,
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uint16_t length, void *data)
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{
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struct iwm_phy_db_cmd phy_db_cmd;
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struct iwm_host_cmd cmd = {
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.id = IWM_PHY_DB_CMD,
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.flags = IWM_CMD_SYNC,
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};
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IWM_DPRINTF(sc, IWM_DEBUG_CMD,
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"Sending PHY-DB hcmd of type %d, of length %d\n",
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type, length);
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/* Set phy db cmd variables */
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phy_db_cmd.type = le16toh(type);
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phy_db_cmd.length = le16toh(length);
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/* Set hcmd variables */
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cmd.data[0] = &phy_db_cmd;
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cmd.len[0] = sizeof(struct iwm_phy_db_cmd);
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cmd.data[1] = data;
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cmd.len[1] = length;
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return iwm_send_cmd(sc, &cmd);
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}
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static int
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iwm_phy_db_send_all_channel_groups(struct iwm_softc *sc,
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enum iwm_phy_db_section_type type, uint8_t max_ch_groups)
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{
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uint16_t i;
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int err;
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struct iwm_phy_db_entry *entry;
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/* Send all the channel-specific groups to operational fw */
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for (i = 0; i < max_ch_groups; i++) {
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entry = iwm_phy_db_get_section(sc, type, i);
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if (!entry)
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return EINVAL;
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if (!entry->size)
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continue;
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/* Send the requested PHY DB section */
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err = iwm_send_phy_db_cmd(sc, type, entry->size, entry->data);
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if (err) {
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IWM_DPRINTF(sc, IWM_DEBUG_CMD,
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"%s: Can't SEND phy_db section %d (%d), "
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"err %d\n", __func__, type, i, err);
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return err;
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}
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DELAY(1000);
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IWM_DPRINTF(sc, IWM_DEBUG_CMD,
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"Sent PHY_DB HCMD, type = %d num = %d\n", type, i);
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}
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return 0;
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}
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int
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iwm_send_phy_db_data(struct iwm_softc *sc)
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{
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uint8_t *data = NULL;
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uint16_t size = 0;
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int err;
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IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
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"%s: Sending phy db data and configuration to runtime image\n",
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__func__);
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/* Send PHY DB CFG section */
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err = iwm_phy_db_get_section_data(sc, IWM_PHY_DB_CFG, &data, &size, 0);
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if (err) {
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IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
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"%s: Cannot get Phy DB cfg section, %d\n",
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__func__, err);
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return err;
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}
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err = iwm_send_phy_db_cmd(sc, IWM_PHY_DB_CFG, size, data);
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if (err) {
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IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
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"%s: Cannot send HCMD of Phy DB cfg section, %d\n",
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__func__, err);
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return err;
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}
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err = iwm_phy_db_get_section_data(sc, IWM_PHY_DB_CALIB_NCH,
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&data, &size, 0);
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if (err) {
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IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
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"%s: Cannot get Phy DB non specific channel section, "
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"%d\n", __func__, err);
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return err;
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}
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err = iwm_send_phy_db_cmd(sc, IWM_PHY_DB_CALIB_NCH, size, data);
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if (err) {
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IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
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"%s: Cannot send HCMD of Phy DB non specific channel "
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"sect, %d\n", __func__, err);
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return err;
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}
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/* Send all the TXP channel specific data */
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err = iwm_phy_db_send_all_channel_groups(sc,
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IWM_PHY_DB_CALIB_CHG_PAPD, IWM_NUM_PAPD_CH_GROUPS);
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if (err) {
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IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
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"%s: Cannot send channel specific PAPD groups, %d\n",
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__func__, err);
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return err;
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}
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/* Send all the TXP channel specific data */
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err = iwm_phy_db_send_all_channel_groups(sc,
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IWM_PHY_DB_CALIB_CHG_TXP, IWM_NUM_TXP_CH_GROUPS);
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if (err) {
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IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
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"%s: Cannot send channel specific TX power groups, "
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"%d\n", __func__, err);
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return err;
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}
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IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
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"%s: Finished sending phy db non channel data\n",
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__func__);
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return 0;
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}
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static void
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iwm_phy_db_free_section(struct iwm_softc *sc,
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enum iwm_phy_db_section_type type, uint16_t chg_id)
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{
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struct iwm_phy_db_entry *entry =
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iwm_phy_db_get_section(sc, type, chg_id);
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if (!entry)
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return;
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if (entry->data != NULL)
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free(entry->data, M_DEVBUF);
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entry->data = NULL;
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entry->size = 0;
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}
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void
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iwm_phy_db_free(struct iwm_softc *sc)
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{
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int i;
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|
iwm_phy_db_free_section(sc, IWM_PHY_DB_CFG, 0);
|
|
iwm_phy_db_free_section(sc, IWM_PHY_DB_CALIB_NCH, 0);
|
|
|
|
for (i = 0; i < IWM_NUM_PAPD_CH_GROUPS; i++)
|
|
iwm_phy_db_free_section(sc, IWM_PHY_DB_CALIB_CHG_PAPD, i);
|
|
|
|
for (i = 0; i < IWM_NUM_TXP_CH_GROUPS; i++)
|
|
iwm_phy_db_free_section(sc, IWM_PHY_DB_CALIB_CHG_TXP, i);
|
|
}
|