freebsd-dev/sys/dev/iwm/if_iwm_phy_db.c
2016-07-26 00:02:17 +00:00

484 lines
14 KiB
C

/* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */
/*
* Copyright (c) 2014 genua mbh <info@genua.de>
* 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 <ilw@linux.intel.com>
* 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 <damien.bergamini@free.fr>
*
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_wlan.h"
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/endian.h>
#include <sys/firmware.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/mutex.h>
#include <sys/module.h>
#include <sys/proc.h>
#include <sys/rman.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/linker.h>
#include <machine/bus.h>
#include <machine/endian.h>
#include <machine/resource.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_arp.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/if_ether.h>
#include <netinet/ip.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_regdomain.h>
#include <net80211/ieee80211_ratectl.h>
#include <net80211/ieee80211_radiotap.h>
#include <dev/iwm/if_iwmreg.h>
#include <dev/iwm/if_iwmvar.h>
#include <dev/iwm/if_iwm_debug.h>
#include <dev/iwm/if_iwm_util.h>
#include <dev/iwm/if_iwm_phy_db.h>
/*
* BEGIN iwl-phy-db.c
*/
/*
* get phy db section: returns a pointer to a phy db section specified by
* type and channel group id.
*/
static struct iwm_phy_db_entry *
iwm_phy_db_get_section(struct iwm_softc *sc,
enum iwm_phy_db_section_type type, uint16_t chg_id)
{
struct iwm_phy_db *phy_db = &sc->sc_phy_db;
if (type >= IWM_PHY_DB_MAX)
return NULL;
switch (type) {
case IWM_PHY_DB_CFG:
return &phy_db->cfg;
case IWM_PHY_DB_CALIB_NCH:
return &phy_db->calib_nch;
case IWM_PHY_DB_CALIB_CHG_PAPD:
if (chg_id >= IWM_NUM_PAPD_CH_GROUPS)
return NULL;
return &phy_db->calib_ch_group_papd[chg_id];
case IWM_PHY_DB_CALIB_CHG_TXP:
if (chg_id >= IWM_NUM_TXP_CH_GROUPS)
return NULL;
return &phy_db->calib_ch_group_txp[chg_id];
default:
return NULL;
}
return NULL;
}
int
iwm_phy_db_set_section(struct iwm_softc *sc,
struct iwm_calib_res_notif_phy_db *phy_db_notif)
{
enum iwm_phy_db_section_type type = le16toh(phy_db_notif->type);
uint16_t size = le16toh(phy_db_notif->length);
struct iwm_phy_db_entry *entry;
uint16_t chg_id = 0;
if (type == IWM_PHY_DB_CALIB_CHG_PAPD ||
type == IWM_PHY_DB_CALIB_CHG_TXP)
chg_id = le16toh(*(uint16_t *)phy_db_notif->data);
entry = iwm_phy_db_get_section(sc, type, chg_id);
if (!entry)
return EINVAL;
if (entry->data)
free(entry->data, M_DEVBUF);
entry->data = malloc(size, M_DEVBUF, M_NOWAIT);
if (!entry->data) {
entry->size = 0;
return ENOMEM;
}
memcpy(entry->data, phy_db_notif->data, size);
entry->size = size;
IWM_DPRINTF(sc, IWM_DEBUG_RESET,
"%s(%d): [PHYDB]SET: Type %d , Size: %d, data: %p\n",
__func__, __LINE__, type, size, entry->data);
return 0;
}
static int
iwm_is_valid_channel(uint16_t ch_id)
{
if (ch_id <= 14 ||
(36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) ||
(100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) ||
(145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1))
return 1;
return 0;
}
static uint8_t
iwm_ch_id_to_ch_index(uint16_t ch_id)
{
if (!iwm_is_valid_channel(ch_id))
return 0xff;
if (ch_id <= 14)
return ch_id - 1;
if (ch_id <= 64)
return (ch_id + 20) / 4;
if (ch_id <= 140)
return (ch_id - 12) / 4;
return (ch_id - 13) / 4;
}
static uint16_t
iwm_channel_id_to_papd(uint16_t ch_id)
{
if (!iwm_is_valid_channel(ch_id))
return 0xff;
if (1 <= ch_id && ch_id <= 14)
return 0;
if (36 <= ch_id && ch_id <= 64)
return 1;
if (100 <= ch_id && ch_id <= 140)
return 2;
return 3;
}
static uint16_t
iwm_channel_id_to_txp(struct iwm_softc *sc, uint16_t ch_id)
{
struct iwm_phy_db *phy_db = &sc->sc_phy_db;
struct iwm_phy_db_chg_txp *txp_chg;
int i;
uint8_t ch_index = iwm_ch_id_to_ch_index(ch_id);
if (ch_index == 0xff)
return 0xff;
for (i = 0; i < IWM_NUM_TXP_CH_GROUPS; i++) {
txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
if (!txp_chg)
return 0xff;
/*
* Looking for the first channel group that its max channel is
* higher then wanted channel.
*/
if (le16toh(txp_chg->max_channel_idx) >= ch_index)
return i;
}
return 0xff;
}
static int
iwm_phy_db_get_section_data(struct iwm_softc *sc,
uint32_t type, uint8_t **data, uint16_t *size, uint16_t ch_id)
{
struct iwm_phy_db_entry *entry;
uint16_t ch_group_id = 0;
IWM_DPRINTF(sc, IWM_DEBUG_RESET, "->%s\n", __func__);
/* find wanted channel group */
if (type == IWM_PHY_DB_CALIB_CHG_PAPD)
ch_group_id = iwm_channel_id_to_papd(ch_id);
else if (type == IWM_PHY_DB_CALIB_CHG_TXP)
ch_group_id = iwm_channel_id_to_txp(sc, ch_id);
entry = iwm_phy_db_get_section(sc, type, ch_group_id);
if (!entry)
return EINVAL;
*data = entry->data;
*size = entry->size;
IWM_DPRINTF(sc, IWM_DEBUG_RESET,
"%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
__func__, __LINE__, type, *size);
return 0;
}
static int
iwm_send_phy_db_cmd(struct iwm_softc *sc, uint16_t type,
uint16_t length, void *data)
{
struct iwm_phy_db_cmd phy_db_cmd;
struct iwm_host_cmd cmd = {
.id = IWM_PHY_DB_CMD,
.flags = IWM_CMD_SYNC,
};
IWM_DPRINTF(sc, IWM_DEBUG_CMD,
"Sending PHY-DB hcmd of type %d, of length %d\n",
type, length);
/* Set phy db cmd variables */
phy_db_cmd.type = le16toh(type);
phy_db_cmd.length = le16toh(length);
/* Set hcmd variables */
cmd.data[0] = &phy_db_cmd;
cmd.len[0] = sizeof(struct iwm_phy_db_cmd);
cmd.data[1] = data;
cmd.len[1] = length;
return iwm_send_cmd(sc, &cmd);
}
static int
iwm_phy_db_send_all_channel_groups(struct iwm_softc *sc,
enum iwm_phy_db_section_type type, uint8_t max_ch_groups)
{
uint16_t i;
int err;
struct iwm_phy_db_entry *entry;
/* Send all the channel-specific groups to operational fw */
for (i = 0; i < max_ch_groups; i++) {
entry = iwm_phy_db_get_section(sc, type, i);
if (!entry)
return EINVAL;
if (!entry->size)
continue;
/* Send the requested PHY DB section */
err = iwm_send_phy_db_cmd(sc, type, entry->size, entry->data);
if (err) {
IWM_DPRINTF(sc, IWM_DEBUG_CMD,
"%s: Can't SEND phy_db section %d (%d), "
"err %d\n", __func__, type, i, err);
return err;
}
DELAY(1000);
IWM_DPRINTF(sc, IWM_DEBUG_CMD,
"Sent PHY_DB HCMD, type = %d num = %d\n", type, i);
}
return 0;
}
int
iwm_send_phy_db_data(struct iwm_softc *sc)
{
uint8_t *data = NULL;
uint16_t size = 0;
int err;
IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
"%s: Sending phy db data and configuration to runtime image\n",
__func__);
/* Send PHY DB CFG section */
err = iwm_phy_db_get_section_data(sc, IWM_PHY_DB_CFG, &data, &size, 0);
if (err) {
IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
"%s: Cannot get Phy DB cfg section, %d\n",
__func__, err);
return err;
}
err = iwm_send_phy_db_cmd(sc, IWM_PHY_DB_CFG, size, data);
if (err) {
IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
"%s: Cannot send HCMD of Phy DB cfg section, %d\n",
__func__, err);
return err;
}
err = iwm_phy_db_get_section_data(sc, IWM_PHY_DB_CALIB_NCH,
&data, &size, 0);
if (err) {
IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
"%s: Cannot get Phy DB non specific channel section, "
"%d\n", __func__, err);
return err;
}
err = iwm_send_phy_db_cmd(sc, IWM_PHY_DB_CALIB_NCH, size, data);
if (err) {
IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
"%s: Cannot send HCMD of Phy DB non specific channel "
"sect, %d\n", __func__, err);
return err;
}
/* Send all the TXP channel specific data */
err = iwm_phy_db_send_all_channel_groups(sc,
IWM_PHY_DB_CALIB_CHG_PAPD, IWM_NUM_PAPD_CH_GROUPS);
if (err) {
IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
"%s: Cannot send channel specific PAPD groups, %d\n",
__func__, err);
return err;
}
/* Send all the TXP channel specific data */
err = iwm_phy_db_send_all_channel_groups(sc,
IWM_PHY_DB_CALIB_CHG_TXP, IWM_NUM_TXP_CH_GROUPS);
if (err) {
IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
"%s: Cannot send channel specific TX power groups, "
"%d\n", __func__, err);
return err;
}
IWM_DPRINTF(sc, IWM_DEBUG_CMD | IWM_DEBUG_RESET,
"%s: Finished sending phy db non channel data\n",
__func__);
return 0;
}
static void
iwm_phy_db_free_section(struct iwm_softc *sc,
enum iwm_phy_db_section_type type, uint16_t chg_id)
{
struct iwm_phy_db_entry *entry =
iwm_phy_db_get_section(sc, type, chg_id);
if (!entry)
return;
if (entry->data != NULL)
free(entry->data, M_DEVBUF);
entry->data = NULL;
entry->size = 0;
}
void
iwm_phy_db_free(struct iwm_softc *sc)
{
int i;
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);
}