diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-phy-db.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-phy-db.c | 288 |
1 files changed, 0 insertions, 288 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-phy-db.c b/drivers/net/wireless/iwlwifi/iwl-phy-db.c deleted file mode 100644 index f166955340fe..000000000000 --- a/drivers/net/wireless/iwlwifi/iwl-phy-db.c +++ /dev/null @@ -1,288 +0,0 @@ -/****************************************************************************** - * - * 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 - 2012 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 LICENSE.GPL. - * - * 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 - 2012 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. - * - *****************************************************************************/ - -#include <linux/slab.h> -#include <linux/string.h> - -#include "iwl-debug.h" -#include "iwl-dev.h" - -#include "iwl-phy-db.h" - -#define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */ - -struct iwl_phy_db *iwl_phy_db_init(struct device *dev) -{ - struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db), - GFP_KERNEL); - - if (!phy_db) - return phy_db; - - phy_db->dev = dev; - - /* TODO: add default values of the phy db. */ - return phy_db; -} - -/* - * get phy db section: returns a pointer to a phy db section specified by - * type and channel group id. - */ -static struct iwl_phy_db_entry * -iwl_phy_db_get_section(struct iwl_phy_db *phy_db, - enum iwl_phy_db_section_type type, - u16 chg_id) -{ - if (!phy_db || type < 0 || type >= IWL_PHY_DB_MAX) - return NULL; - - switch (type) { - case IWL_PHY_DB_CFG: - return &phy_db->cfg; - case IWL_PHY_DB_CALIB_NCH: - return &phy_db->calib_nch; - case IWL_PHY_DB_CALIB_CH: - return &phy_db->calib_ch; - case IWL_PHY_DB_CALIB_CHG_PAPD: - if (chg_id < 0 || chg_id >= IWL_NUM_PAPD_CH_GROUPS) - return NULL; - return &phy_db->calib_ch_group_papd[chg_id]; - case IWL_PHY_DB_CALIB_CHG_TXP: - if (chg_id < 0 || chg_id >= IWL_NUM_TXP_CH_GROUPS) - return NULL; - return &phy_db->calib_ch_group_txp[chg_id]; - default: - return NULL; - } - return NULL; -} - -static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db, - enum iwl_phy_db_section_type type, - u16 chg_id) -{ - struct iwl_phy_db_entry *entry = - iwl_phy_db_get_section(phy_db, type, chg_id); - if (!entry) - return; - - kfree(entry->data); - entry->data = NULL; - entry->size = 0; -} - -void iwl_phy_db_free(struct iwl_phy_db *phy_db) -{ - int i; - - if (!phy_db) - return; - - iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0); - iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0); - iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CH, 0); - for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++) - iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i); - for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) - iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i); - - kfree(phy_db); -} - -int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, - enum iwl_phy_db_section_type type, u8 *data, - u16 size, gfp_t alloc_ctx) -{ - struct iwl_phy_db_entry *entry; - u16 chg_id = 0; - - if (!phy_db) - return -EINVAL; - - if (type == IWL_PHY_DB_CALIB_CHG_PAPD || - type == IWL_PHY_DB_CALIB_CHG_TXP) - chg_id = le16_to_cpup((__le16 *)data); - - entry = iwl_phy_db_get_section(phy_db, type, chg_id); - if (!entry) - return -EINVAL; - - kfree(entry->data); - entry->data = kmemdup(data, size, alloc_ctx); - if (!entry->data) { - entry->size = 0; - return -ENOMEM; - } - - entry->size = size; - - if (type == IWL_PHY_DB_CALIB_CH) { - phy_db->channel_num = le32_to_cpup((__le32 *)data); - phy_db->channel_size = - (size - CHANNEL_NUM_SIZE) / phy_db->channel_num; - } - - return 0; -} - -static int is_valid_channel(u16 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 u8 ch_id_to_ch_index(u16 ch_id) -{ - if (WARN_ON(!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 u16 channel_id_to_papd(u16 ch_id) -{ - if (WARN_ON(!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 u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id) -{ - struct iwl_phy_db_chg_txp *txp_chg; - int i; - u8 ch_index = ch_id_to_ch_index(ch_id); - if (ch_index == 0xff) - return 0xff; - - for (i = 0; i < IWL_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 (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index) - return i; - } - return 0xff; -} - -int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db, - enum iwl_phy_db_section_type type, u8 **data, - u16 *size, u16 ch_id) -{ - struct iwl_phy_db_entry *entry; - u32 channel_num; - u32 channel_size; - u16 ch_group_id = 0; - u16 index; - - if (!phy_db) - return -EINVAL; - - /* find wanted channel group */ - if (type == IWL_PHY_DB_CALIB_CHG_PAPD) - ch_group_id = channel_id_to_papd(ch_id); - else if (type == IWL_PHY_DB_CALIB_CHG_TXP) - ch_group_id = channel_id_to_txp(phy_db, ch_id); - - entry = iwl_phy_db_get_section(phy_db, type, ch_group_id); - if (!entry) - return -EINVAL; - - if (type == IWL_PHY_DB_CALIB_CH) { - index = ch_id_to_ch_index(ch_id); - channel_num = phy_db->channel_num; - channel_size = phy_db->channel_size; - if (index >= channel_num) { - IWL_ERR(phy_db, "Wrong channel number %d", ch_id); - return -EINVAL; - } - *data = entry->data + CHANNEL_NUM_SIZE + index * channel_size; - *size = channel_size; - } else { - *data = entry->data; - *size = entry->size; - } - return 0; -} |