diff options
author | Kalle Valo <kvalo@codeaurora.org> | 2015-11-17 20:57:38 +0200 |
---|---|---|
committer | Kalle Valo <kvalo@codeaurora.org> | 2015-11-18 14:28:30 +0200 |
commit | e705c12146aa9c69ca498d4ebb83ba7138f9b41f (patch) | |
tree | b55d4eb7a83c2ec117f460684eb71c89eee6a709 /drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c | |
parent | 7ac9a364c1721a863ecc6cc9aba66e10114908db (diff) | |
download | linux-e705c12146aa9c69ca498d4ebb83ba7138f9b41f.tar.gz linux-e705c12146aa9c69ca498d4ebb83ba7138f9b41f.tar.bz2 linux-e705c12146aa9c69ca498d4ebb83ba7138f9b41f.zip |
iwlwifi: move under intel vendor directory
Part of reorganising wireless drivers directory and Kconfig.
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c deleted file mode 100644 index e68a475e3071..000000000000 --- a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c +++ /dev/null @@ -1,295 +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) 2012 - 2014 Intel Corporation. All rights reserved. - * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH - * - * 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) 2012 - 2014 Intel Corporation. All rights reserved. - * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH - * 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 <net/mac80211.h> -#include "fw-api.h" -#include "mvm.h" - -/* Maps the driver specific channel width definition to the fw values */ -u8 iwl_mvm_get_channel_width(struct cfg80211_chan_def *chandef) -{ - switch (chandef->width) { - case NL80211_CHAN_WIDTH_20_NOHT: - case NL80211_CHAN_WIDTH_20: - return PHY_VHT_CHANNEL_MODE20; - case NL80211_CHAN_WIDTH_40: - return PHY_VHT_CHANNEL_MODE40; - case NL80211_CHAN_WIDTH_80: - return PHY_VHT_CHANNEL_MODE80; - case NL80211_CHAN_WIDTH_160: - return PHY_VHT_CHANNEL_MODE160; - default: - WARN(1, "Invalid channel width=%u", chandef->width); - return PHY_VHT_CHANNEL_MODE20; - } -} - -/* - * Maps the driver specific control channel position (relative to the center - * freq) definitions to the the fw values - */ -u8 iwl_mvm_get_ctrl_pos(struct cfg80211_chan_def *chandef) -{ - switch (chandef->chan->center_freq - chandef->center_freq1) { - case -70: - return PHY_VHT_CTRL_POS_4_BELOW; - case -50: - return PHY_VHT_CTRL_POS_3_BELOW; - case -30: - return PHY_VHT_CTRL_POS_2_BELOW; - case -10: - return PHY_VHT_CTRL_POS_1_BELOW; - case 10: - return PHY_VHT_CTRL_POS_1_ABOVE; - case 30: - return PHY_VHT_CTRL_POS_2_ABOVE; - case 50: - return PHY_VHT_CTRL_POS_3_ABOVE; - case 70: - return PHY_VHT_CTRL_POS_4_ABOVE; - default: - WARN(1, "Invalid channel definition"); - case 0: - /* - * The FW is expected to check the control channel position only - * when in HT/VHT and the channel width is not 20MHz. Return - * this value as the default one. - */ - return PHY_VHT_CTRL_POS_1_BELOW; - } -} - -/* - * Construct the generic fields of the PHY context command - */ -static void iwl_mvm_phy_ctxt_cmd_hdr(struct iwl_mvm_phy_ctxt *ctxt, - struct iwl_phy_context_cmd *cmd, - u32 action, u32 apply_time) -{ - memset(cmd, 0, sizeof(struct iwl_phy_context_cmd)); - - cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(ctxt->id, - ctxt->color)); - cmd->action = cpu_to_le32(action); - cmd->apply_time = cpu_to_le32(apply_time); -} - -/* - * Add the phy configuration to the PHY context command - */ -static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm, - struct iwl_phy_context_cmd *cmd, - struct cfg80211_chan_def *chandef, - u8 chains_static, u8 chains_dynamic) -{ - u8 active_cnt, idle_cnt; - - /* Set the channel info data */ - cmd->ci.band = (chandef->chan->band == IEEE80211_BAND_2GHZ ? - PHY_BAND_24 : PHY_BAND_5); - - cmd->ci.channel = chandef->chan->hw_value; - cmd->ci.width = iwl_mvm_get_channel_width(chandef); - cmd->ci.ctrl_pos = iwl_mvm_get_ctrl_pos(chandef); - - /* Set rx the chains */ - idle_cnt = chains_static; - active_cnt = chains_dynamic; - - /* In scenarios where we only ever use a single-stream rates, - * i.e. legacy 11b/g/a associations, single-stream APs or even - * static SMPS, enable both chains to get diversity, improving - * the case where we're far enough from the AP that attenuation - * between the two antennas is sufficiently different to impact - * performance. - */ - if (active_cnt == 1 && iwl_mvm_rx_diversity_allowed(mvm)) { - idle_cnt = 2; - active_cnt = 2; - } - - cmd->rxchain_info = cpu_to_le32(iwl_mvm_get_valid_rx_ant(mvm) << - PHY_RX_CHAIN_VALID_POS); - cmd->rxchain_info |= cpu_to_le32(idle_cnt << PHY_RX_CHAIN_CNT_POS); - cmd->rxchain_info |= cpu_to_le32(active_cnt << - PHY_RX_CHAIN_MIMO_CNT_POS); -#ifdef CONFIG_IWLWIFI_DEBUGFS - if (unlikely(mvm->dbgfs_rx_phyinfo)) - cmd->rxchain_info = cpu_to_le32(mvm->dbgfs_rx_phyinfo); -#endif - - cmd->txchain_info = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm)); -} - -/* - * Send a command to apply the current phy configuration. The command is send - * only if something in the configuration changed: in case that this is the - * first time that the phy configuration is applied or in case that the phy - * configuration changed from the previous apply. - */ -static int iwl_mvm_phy_ctxt_apply(struct iwl_mvm *mvm, - struct iwl_mvm_phy_ctxt *ctxt, - struct cfg80211_chan_def *chandef, - u8 chains_static, u8 chains_dynamic, - u32 action, u32 apply_time) -{ - struct iwl_phy_context_cmd cmd; - int ret; - - /* Set the command header fields */ - iwl_mvm_phy_ctxt_cmd_hdr(ctxt, &cmd, action, apply_time); - - /* Set the command data */ - iwl_mvm_phy_ctxt_cmd_data(mvm, &cmd, chandef, - chains_static, chains_dynamic); - - ret = iwl_mvm_send_cmd_pdu(mvm, PHY_CONTEXT_CMD, 0, - sizeof(struct iwl_phy_context_cmd), - &cmd); - if (ret) - IWL_ERR(mvm, "PHY ctxt cmd error. ret=%d\n", ret); - return ret; -} - -/* - * Send a command to add a PHY context based on the current HW configuration. - */ -int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt, - struct cfg80211_chan_def *chandef, - u8 chains_static, u8 chains_dynamic) -{ - WARN_ON(!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && - ctxt->ref); - lockdep_assert_held(&mvm->mutex); - - ctxt->channel = chandef->chan; - - return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef, - chains_static, chains_dynamic, - FW_CTXT_ACTION_ADD, 0); -} - -/* - * Update the number of references to the given PHY context. This is valid only - * in case the PHY context was already created, i.e., its reference count > 0. - */ -void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt) -{ - lockdep_assert_held(&mvm->mutex); - ctxt->ref++; -} - -/* - * Send a command to modify the PHY context based on the current HW - * configuration. Note that the function does not check that the configuration - * changed. - */ -int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt, - struct cfg80211_chan_def *chandef, - u8 chains_static, u8 chains_dynamic) -{ - lockdep_assert_held(&mvm->mutex); - - ctxt->channel = chandef->chan; - return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef, - chains_static, chains_dynamic, - FW_CTXT_ACTION_MODIFY, 0); -} - -void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt) -{ - lockdep_assert_held(&mvm->mutex); - - if (WARN_ON_ONCE(!ctxt)) - return; - - ctxt->ref--; -} - -static void iwl_mvm_binding_iterator(void *_data, u8 *mac, - struct ieee80211_vif *vif) -{ - unsigned long *data = _data; - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - - if (!mvmvif->phy_ctxt) - return; - - if (vif->type == NL80211_IFTYPE_STATION || - vif->type == NL80211_IFTYPE_AP) - __set_bit(mvmvif->phy_ctxt->id, data); -} - -int iwl_mvm_phy_ctx_count(struct iwl_mvm *mvm) -{ - unsigned long phy_ctxt_counter = 0; - - ieee80211_iterate_active_interfaces_atomic(mvm->hw, - IEEE80211_IFACE_ITER_NORMAL, - iwl_mvm_binding_iterator, - &phy_ctxt_counter); - - return hweight8(phy_ctxt_counter); -} |