490 lines
13 KiB
C
490 lines
13 KiB
C
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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 - 2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2016 Intel Deutschland GmbH
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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 <linuxwifi@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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* BSD LICENSE
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*
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* Copyright(c) 2005 - 2014 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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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/export.h>
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#include "iwl-drv.h"
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#include "iwl-phy-db.h"
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#include "iwl-debug.h"
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#include "iwl-op-mode.h"
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#include "iwl-trans.h"
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#define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */
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struct iwl_phy_db_entry {
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u16 size;
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u8 *data;
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};
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/**
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* struct iwl_phy_db - stores phy configuration and calibration data.
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*
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* @cfg: phy configuration.
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* @calib_nch: non channel specific calibration data.
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* @calib_ch: channel specific calibration data.
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* @n_group_papd: number of entries in papd channel group.
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* @calib_ch_group_papd: calibration data related to papd channel group.
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* @n_group_txp: number of entries in tx power channel group.
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* @calib_ch_group_txp: calibration data related to tx power chanel group.
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*/
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struct iwl_phy_db {
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struct iwl_phy_db_entry cfg;
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struct iwl_phy_db_entry calib_nch;
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int n_group_papd;
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struct iwl_phy_db_entry *calib_ch_group_papd;
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int n_group_txp;
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struct iwl_phy_db_entry *calib_ch_group_txp;
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struct iwl_trans *trans;
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};
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enum iwl_phy_db_section_type {
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IWL_PHY_DB_CFG = 1,
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IWL_PHY_DB_CALIB_NCH,
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IWL_PHY_DB_UNUSED,
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IWL_PHY_DB_CALIB_CHG_PAPD,
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IWL_PHY_DB_CALIB_CHG_TXP,
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IWL_PHY_DB_MAX
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};
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#define PHY_DB_CMD 0x6c
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/* for parsing of tx power channel group data that comes from the firmware*/
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struct iwl_phy_db_chg_txp {
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__le32 space;
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__le16 max_channel_idx;
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} __packed;
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struct iwl_phy_db *iwl_phy_db_init(struct iwl_trans *trans)
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{
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struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db),
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GFP_KERNEL);
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if (!phy_db)
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return phy_db;
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phy_db->trans = trans;
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phy_db->n_group_txp = -1;
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phy_db->n_group_papd = -1;
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/* TODO: add default values of the phy db. */
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return phy_db;
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}
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IWL_EXPORT_SYMBOL(iwl_phy_db_init);
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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 iwl_phy_db_entry *
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iwl_phy_db_get_section(struct iwl_phy_db *phy_db,
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enum iwl_phy_db_section_type type,
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u16 chg_id)
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{
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if (!phy_db || type >= IWL_PHY_DB_MAX)
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return NULL;
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switch (type) {
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case IWL_PHY_DB_CFG:
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return &phy_db->cfg;
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case IWL_PHY_DB_CALIB_NCH:
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return &phy_db->calib_nch;
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case IWL_PHY_DB_CALIB_CHG_PAPD:
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if (chg_id >= phy_db->n_group_papd)
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return NULL;
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return &phy_db->calib_ch_group_papd[chg_id];
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case IWL_PHY_DB_CALIB_CHG_TXP:
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if (chg_id >= phy_db->n_group_txp)
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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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static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db,
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enum iwl_phy_db_section_type type,
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u16 chg_id)
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{
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struct iwl_phy_db_entry *entry =
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iwl_phy_db_get_section(phy_db, type, chg_id);
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if (!entry)
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return;
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kfree(entry->data);
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entry->data = NULL;
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entry->size = 0;
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}
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void iwl_phy_db_free(struct iwl_phy_db *phy_db)
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{
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int i;
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if (!phy_db)
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return;
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iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0);
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iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0);
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for (i = 0; i < phy_db->n_group_papd; i++)
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iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
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kfree(phy_db->calib_ch_group_papd);
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for (i = 0; i < phy_db->n_group_txp; i++)
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iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i);
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kfree(phy_db->calib_ch_group_txp);
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kfree(phy_db);
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}
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IWL_EXPORT_SYMBOL(iwl_phy_db_free);
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int iwl_phy_db_set_section(struct iwl_phy_db *phy_db,
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struct iwl_rx_packet *pkt)
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{
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struct iwl_calib_res_notif_phy_db *phy_db_notif =
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(struct iwl_calib_res_notif_phy_db *)pkt->data;
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enum iwl_phy_db_section_type type = le16_to_cpu(phy_db_notif->type);
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u16 size = le16_to_cpu(phy_db_notif->length);
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struct iwl_phy_db_entry *entry;
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u16 chg_id = 0;
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if (!phy_db)
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return -EINVAL;
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if (type == IWL_PHY_DB_CALIB_CHG_PAPD) {
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chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
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if (phy_db && !phy_db->calib_ch_group_papd) {
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/*
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* Firmware sends the largest index first, so we can use
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* it to know how much we should allocate.
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*/
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phy_db->calib_ch_group_papd = kcalloc(chg_id + 1,
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sizeof(struct iwl_phy_db_entry),
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GFP_ATOMIC);
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if (!phy_db->calib_ch_group_papd)
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return -ENOMEM;
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phy_db->n_group_papd = chg_id + 1;
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}
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} else if (type == IWL_PHY_DB_CALIB_CHG_TXP) {
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chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
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if (phy_db && !phy_db->calib_ch_group_txp) {
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/*
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* Firmware sends the largest index first, so we can use
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* it to know how much we should allocate.
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*/
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phy_db->calib_ch_group_txp = kcalloc(chg_id + 1,
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sizeof(struct iwl_phy_db_entry),
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GFP_ATOMIC);
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if (!phy_db->calib_ch_group_txp)
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return -ENOMEM;
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phy_db->n_group_txp = chg_id + 1;
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}
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}
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entry = iwl_phy_db_get_section(phy_db, type, chg_id);
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if (!entry)
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return -EINVAL;
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kfree(entry->data);
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entry->data = kmemdup(phy_db_notif->data, size, GFP_ATOMIC);
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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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entry->size = size;
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IWL_DEBUG_INFO(phy_db->trans,
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"%s(%d): [PHYDB]SET: 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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IWL_EXPORT_SYMBOL(iwl_phy_db_set_section);
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static int is_valid_channel(u16 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 u8 ch_id_to_ch_index(u16 ch_id)
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{
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if (WARN_ON(!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 u16 channel_id_to_papd(u16 ch_id)
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{
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if (WARN_ON(!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 u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id)
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{
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struct iwl_phy_db_chg_txp *txp_chg;
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int i;
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u8 ch_index = 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 < phy_db->n_group_txp; 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 (le16_to_cpu(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
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int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
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u32 type, u8 **data, u16 *size, u16 ch_id)
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{
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struct iwl_phy_db_entry *entry;
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u16 ch_group_id = 0;
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if (!phy_db)
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return -EINVAL;
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/* find wanted channel group */
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if (type == IWL_PHY_DB_CALIB_CHG_PAPD)
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ch_group_id = channel_id_to_papd(ch_id);
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else if (type == IWL_PHY_DB_CALIB_CHG_TXP)
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ch_group_id = channel_id_to_txp(phy_db, ch_id);
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entry = iwl_phy_db_get_section(phy_db, 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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IWL_DEBUG_INFO(phy_db->trans,
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"%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
|
||
|
|
__func__, __LINE__, type, *size);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type,
|
||
|
|
u16 length, void *data)
|
||
|
|
{
|
||
|
|
struct iwl_phy_db_cmd phy_db_cmd;
|
||
|
|
struct iwl_host_cmd cmd = {
|
||
|
|
.id = PHY_DB_CMD,
|
||
|
|
};
|
||
|
|
|
||
|
|
IWL_DEBUG_INFO(phy_db->trans,
|
||
|
|
"Sending PHY-DB hcmd of type %d, of length %d\n",
|
||
|
|
type, length);
|
||
|
|
|
||
|
|
/* Set phy db cmd variables */
|
||
|
|
phy_db_cmd.type = cpu_to_le16(type);
|
||
|
|
phy_db_cmd.length = cpu_to_le16(length);
|
||
|
|
|
||
|
|
/* Set hcmd variables */
|
||
|
|
cmd.data[0] = &phy_db_cmd;
|
||
|
|
cmd.len[0] = sizeof(struct iwl_phy_db_cmd);
|
||
|
|
cmd.data[1] = data;
|
||
|
|
cmd.len[1] = length;
|
||
|
|
cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
|
||
|
|
|
||
|
|
return iwl_trans_send_cmd(phy_db->trans, &cmd);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int iwl_phy_db_send_all_channel_groups(
|
||
|
|
struct iwl_phy_db *phy_db,
|
||
|
|
enum iwl_phy_db_section_type type,
|
||
|
|
u8 max_ch_groups)
|
||
|
|
{
|
||
|
|
u16 i;
|
||
|
|
int err;
|
||
|
|
struct iwl_phy_db_entry *entry;
|
||
|
|
|
||
|
|
/* Send all the channel specific groups to operational fw */
|
||
|
|
for (i = 0; i < max_ch_groups; i++) {
|
||
|
|
entry = iwl_phy_db_get_section(phy_db,
|
||
|
|
type,
|
||
|
|
i);
|
||
|
|
if (!entry)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
if (!entry->size)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
/* Send the requested PHY DB section */
|
||
|
|
err = iwl_send_phy_db_cmd(phy_db,
|
||
|
|
type,
|
||
|
|
entry->size,
|
||
|
|
entry->data);
|
||
|
|
if (err) {
|
||
|
|
IWL_ERR(phy_db->trans,
|
||
|
|
"Can't SEND phy_db section %d (%d), err %d\n",
|
||
|
|
type, i, err);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
IWL_DEBUG_INFO(phy_db->trans,
|
||
|
|
"Sent PHY_DB HCMD, type = %d num = %d\n",
|
||
|
|
type, i);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int iwl_send_phy_db_data(struct iwl_phy_db *phy_db)
|
||
|
|
{
|
||
|
|
u8 *data = NULL;
|
||
|
|
u16 size = 0;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
IWL_DEBUG_INFO(phy_db->trans,
|
||
|
|
"Sending phy db data and configuration to runtime image\n");
|
||
|
|
|
||
|
|
/* Send PHY DB CFG section */
|
||
|
|
err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG,
|
||
|
|
&data, &size, 0);
|
||
|
|
if (err) {
|
||
|
|
IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n");
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data);
|
||
|
|
if (err) {
|
||
|
|
IWL_ERR(phy_db->trans,
|
||
|
|
"Cannot send HCMD of Phy DB cfg section\n");
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH,
|
||
|
|
&data, &size, 0);
|
||
|
|
if (err) {
|
||
|
|
IWL_ERR(phy_db->trans,
|
||
|
|
"Cannot get Phy DB non specific channel section\n");
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data);
|
||
|
|
if (err) {
|
||
|
|
IWL_ERR(phy_db->trans,
|
||
|
|
"Cannot send HCMD of Phy DB non specific channel section\n");
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Send all the TXP channel specific data */
|
||
|
|
err = iwl_phy_db_send_all_channel_groups(phy_db,
|
||
|
|
IWL_PHY_DB_CALIB_CHG_PAPD,
|
||
|
|
phy_db->n_group_papd);
|
||
|
|
if (err) {
|
||
|
|
IWL_ERR(phy_db->trans,
|
||
|
|
"Cannot send channel specific PAPD groups\n");
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Send all the TXP channel specific data */
|
||
|
|
err = iwl_phy_db_send_all_channel_groups(phy_db,
|
||
|
|
IWL_PHY_DB_CALIB_CHG_TXP,
|
||
|
|
phy_db->n_group_txp);
|
||
|
|
if (err) {
|
||
|
|
IWL_ERR(phy_db->trans,
|
||
|
|
"Cannot send channel specific TX power groups\n");
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
IWL_DEBUG_INFO(phy_db->trans,
|
||
|
|
"Finished sending phy db non channel data\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
IWL_EXPORT_SYMBOL(iwl_send_phy_db_data);
|