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iwlwifi: phy_db structure
Add iwl_phy_db structure and API. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Spinadel
John W. Linville
parent
80007efeff
commit
aa27a703ce
@ -136,3 +136,11 @@ config IWLWIFI_EXPERIMENTAL_MFP
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even if the microcode doesn't advertise it.
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Say Y only if you want to experiment with MFP.
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config IWLWIFI_UCODE16
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bool "support uCode 16.0"
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depends on IWLWIFI
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help
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This option enables support for uCode version 16.0.
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Say Y if you want to use 16.0 microcode.
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@ -17,6 +17,8 @@ iwlwifi-objs += iwl-drv.o
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iwlwifi-objs += iwl-notif-wait.o
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iwlwifi-objs += iwl-trans-pcie.o iwl-trans-pcie-rx.o iwl-trans-pcie-tx.o
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iwlwifi-$(CONFIG_IWLWIFI_UCODE16) += iwl-phy-db.o
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iwlwifi-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
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iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
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iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TESTMODE) += iwl-testmode.o
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273
drivers/net/wireless/iwlwifi/iwl-phy-db.c
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273
drivers/net/wireless/iwlwifi/iwl-phy-db.c
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@ -0,0 +1,273 @@
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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 - 2012 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 LICENSE.GPL.
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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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* BSD LICENSE
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*
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* Copyright(c) 2005 - 2012 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 "iwl-debug.h"
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#include "iwl-shared.h"
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#include "iwl-dev.h"
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#include "iwl-phy-db.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 *iwl_phy_db_init(struct iwl_shared *shrd)
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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->shrd = shrd;
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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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/*
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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 < 0 || 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_CH:
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return &phy_db->calib_ch;
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case IWL_PHY_DB_CALIB_CHG_PAPD:
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if (chg_id < 0 || chg_id >= IWL_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 IWL_PHY_DB_CALIB_CHG_TXP:
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if (chg_id < 0 || chg_id >= IWL_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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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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iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CH, 0);
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for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++)
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iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
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for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; 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);
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}
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int iwl_phy_db_set_section(struct iwl_phy_db *phy_db,
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enum iwl_phy_db_section_type type, u8 *data,
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u16 size, gfp_t alloc_ctx)
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{
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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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type == IWL_PHY_DB_CALIB_CHG_TXP)
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chg_id = le16_to_cpup((__le16 *)data);
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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(data, size, alloc_ctx);
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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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if (type == IWL_PHY_DB_CALIB_CH) {
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phy_db->channel_num = le32_to_cpup((__le32 *)data);
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phy_db->channel_size =
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(size - CHANNEL_NUM_SIZE) / phy_db->channel_num;
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}
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return 0;
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}
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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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/* TODO David*/
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return 0;
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}
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int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
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enum iwl_phy_db_section_type type, u8 **data,
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u16 *size, u16 ch_id)
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{
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struct iwl_phy_db_entry *entry;
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u32 channel_num;
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u32 channel_size;
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u16 ch_group_id = 0;
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u16 index;
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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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if (type == IWL_PHY_DB_CALIB_CH) {
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index = ch_id_to_ch_index(ch_id);
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channel_num = phy_db->channel_num;
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channel_size = phy_db->channel_size;
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if (index >= channel_num) {
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IWL_ERR(phy_db, "Wrong channel number %d", ch_id);
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return -EINVAL;
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}
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*data = entry->data + CHANNEL_NUM_SIZE + index * channel_size;
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*size = channel_size;
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} else {
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*data = entry->data;
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*size = entry->size;
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}
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return 0;
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}
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123
drivers/net/wireless/iwlwifi/iwl-phy-db.h
Normal file
123
drivers/net/wireless/iwlwifi/iwl-phy-db.h
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@ -0,0 +1,123 @@
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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 - 2012 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 LICENSE.GPL.
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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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* BSD LICENSE
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*
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* Copyright(c) 2005 - 2012 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
|
||||
* 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
|
||||
* 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
|
||||
* 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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#ifndef __IWL_PHYDB_H__
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#define __IWL_PHYDB_H__
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#include <linux/types.h>
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#define IWL_NUM_PAPD_CH_GROUPS 4
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#define IWL_NUM_TXP_CH_GROUPS 8
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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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struct iwl_shared;
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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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* @calib_ch_group_papd: calibration data related to papd 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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struct iwl_phy_db_entry calib_ch;
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struct iwl_phy_db_entry calib_ch_group_papd[IWL_NUM_PAPD_CH_GROUPS];
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struct iwl_phy_db_entry calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS];
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u32 channel_num;
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u32 channel_size;
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/* for an access to the logger */
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const struct iwl_shared *shrd;
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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_CALIB_CH,
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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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struct iwl_phy_db *iwl_phy_db_init(struct iwl_shared *shrd);
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void iwl_phy_db_free(struct iwl_phy_db *phy_db);
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int iwl_phy_db_set_section(struct iwl_phy_db *phy_db,
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enum iwl_phy_db_section_type type, u8 *data,
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u16 size, gfp_t alloc_ctx);
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int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
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enum iwl_phy_db_section_type type, u8 **data,
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u16 *size, u16 ch_id);
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#endif /* __IWL_PHYDB_H__ */
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