758 lines
20 KiB
C
758 lines
20 KiB
C
// SPDX-License-Identifier: BSD-3-Clause-Clear
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/*
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* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
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*/
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#include <linux/rtnetlink.h>
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#include "core.h"
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#include "debug.h"
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/* World regdom to be used in case default regd from fw is unavailable */
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#define ATH11K_2GHZ_CH01_11 REG_RULE(2412 - 10, 2462 + 10, 40, 0, 20, 0)
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#define ATH11K_5GHZ_5150_5350 REG_RULE(5150 - 10, 5350 + 10, 80, 0, 30,\
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NL80211_RRF_NO_IR)
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#define ATH11K_5GHZ_5725_5850 REG_RULE(5725 - 10, 5850 + 10, 80, 0, 30,\
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NL80211_RRF_NO_IR)
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#define ETSI_WEATHER_RADAR_BAND_LOW 5590
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#define ETSI_WEATHER_RADAR_BAND_HIGH 5650
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#define ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT 600000
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static const struct ieee80211_regdomain ath11k_world_regd = {
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.n_reg_rules = 3,
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.alpha2 = "00",
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.reg_rules = {
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ATH11K_2GHZ_CH01_11,
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ATH11K_5GHZ_5150_5350,
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ATH11K_5GHZ_5725_5850,
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}
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};
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static bool ath11k_regdom_changes(struct ath11k *ar, char *alpha2)
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{
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const struct ieee80211_regdomain *regd;
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regd = rcu_dereference_rtnl(ar->hw->wiphy->regd);
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/* This can happen during wiphy registration where the previous
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* user request is received before we update the regd received
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* from firmware.
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*/
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if (!regd)
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return true;
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return memcmp(regd->alpha2, alpha2, 2) != 0;
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}
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static void
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ath11k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
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{
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struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
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struct wmi_init_country_params init_country_param;
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struct wmi_set_current_country_params set_current_param = {};
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struct ath11k *ar = hw->priv;
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int ret;
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ath11k_dbg(ar->ab, ATH11K_DBG_REG,
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"Regulatory Notification received for %s\n", wiphy_name(wiphy));
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/* Currently supporting only General User Hints. Cell base user
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* hints to be handled later.
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* Hints from other sources like Core, Beacons are not expected for
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* self managed wiphy's
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*/
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if (!(request->initiator == NL80211_REGDOM_SET_BY_USER &&
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request->user_reg_hint_type == NL80211_USER_REG_HINT_USER)) {
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ath11k_warn(ar->ab, "Unexpected Regulatory event for this wiphy\n");
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return;
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}
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if (!IS_ENABLED(CONFIG_ATH_REG_DYNAMIC_USER_REG_HINTS)) {
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ath11k_dbg(ar->ab, ATH11K_DBG_REG,
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"Country Setting is not allowed\n");
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return;
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}
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if (!ath11k_regdom_changes(ar, request->alpha2)) {
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ath11k_dbg(ar->ab, ATH11K_DBG_REG, "Country is already set\n");
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return;
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}
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/* Set the country code to the firmware and will receive
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* the WMI_REG_CHAN_LIST_CC EVENT for updating the
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* reg info
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*/
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if (ar->ab->hw_params.current_cc_support) {
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memcpy(&set_current_param.alpha2, request->alpha2, 2);
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memcpy(&ar->alpha2, &set_current_param.alpha2, 2);
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ret = ath11k_wmi_send_set_current_country_cmd(ar, &set_current_param);
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if (ret)
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ath11k_warn(ar->ab,
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"failed set current country code: %d\n", ret);
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} else {
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init_country_param.flags = ALPHA_IS_SET;
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memcpy(&init_country_param.cc_info.alpha2, request->alpha2, 2);
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init_country_param.cc_info.alpha2[2] = 0;
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ret = ath11k_wmi_send_init_country_cmd(ar, init_country_param);
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if (ret)
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ath11k_warn(ar->ab,
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"INIT Country code set to fw failed : %d\n", ret);
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}
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ath11k_mac_11d_scan_stop(ar);
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ar->regdom_set_by_user = true;
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}
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int ath11k_reg_update_chan_list(struct ath11k *ar, bool wait)
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{
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struct ieee80211_supported_band **bands;
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struct scan_chan_list_params *params;
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struct ieee80211_channel *channel;
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struct ieee80211_hw *hw = ar->hw;
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struct channel_param *ch;
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enum nl80211_band band;
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int num_channels = 0;
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int i, ret, left;
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if (wait && ar->state_11d != ATH11K_11D_IDLE) {
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left = wait_for_completion_timeout(&ar->completed_11d_scan,
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ATH11K_SCAN_TIMEOUT_HZ);
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if (!left) {
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ath11k_dbg(ar->ab, ATH11K_DBG_REG,
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"failed to receive 11d scan complete: timed out\n");
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ar->state_11d = ATH11K_11D_IDLE;
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}
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ath11k_dbg(ar->ab, ATH11K_DBG_REG,
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"reg 11d scan wait left time %d\n", left);
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}
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if (wait &&
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(ar->scan.state == ATH11K_SCAN_STARTING ||
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ar->scan.state == ATH11K_SCAN_RUNNING)) {
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left = wait_for_completion_timeout(&ar->scan.completed,
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ATH11K_SCAN_TIMEOUT_HZ);
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if (!left)
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ath11k_dbg(ar->ab, ATH11K_DBG_REG,
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"failed to receive hw scan complete: timed out\n");
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ath11k_dbg(ar->ab, ATH11K_DBG_REG,
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"reg hw scan wait left time %d\n", left);
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}
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if (ar->state == ATH11K_STATE_RESTARTING)
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return 0;
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bands = hw->wiphy->bands;
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for (band = 0; band < NUM_NL80211_BANDS; band++) {
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if (!bands[band])
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continue;
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for (i = 0; i < bands[band]->n_channels; i++) {
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if (bands[band]->channels[i].flags &
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IEEE80211_CHAN_DISABLED)
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continue;
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num_channels++;
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}
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}
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if (WARN_ON(!num_channels))
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return -EINVAL;
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params = kzalloc(struct_size(params, ch_param, num_channels),
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GFP_KERNEL);
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if (!params)
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return -ENOMEM;
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params->pdev_id = ar->pdev->pdev_id;
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params->nallchans = num_channels;
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ch = params->ch_param;
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for (band = 0; band < NUM_NL80211_BANDS; band++) {
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if (!bands[band])
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continue;
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for (i = 0; i < bands[band]->n_channels; i++) {
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channel = &bands[band]->channels[i];
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if (channel->flags & IEEE80211_CHAN_DISABLED)
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continue;
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/* TODO: Set to true/false based on some condition? */
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ch->allow_ht = true;
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ch->allow_vht = true;
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ch->allow_he = true;
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ch->dfs_set =
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!!(channel->flags & IEEE80211_CHAN_RADAR);
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ch->is_chan_passive = !!(channel->flags &
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IEEE80211_CHAN_NO_IR);
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ch->is_chan_passive |= ch->dfs_set;
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ch->mhz = channel->center_freq;
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ch->cfreq1 = channel->center_freq;
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ch->minpower = 0;
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ch->maxpower = channel->max_power * 2;
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ch->maxregpower = channel->max_reg_power * 2;
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ch->antennamax = channel->max_antenna_gain * 2;
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/* TODO: Use appropriate phymodes */
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if (channel->band == NL80211_BAND_2GHZ)
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ch->phy_mode = MODE_11G;
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else
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ch->phy_mode = MODE_11A;
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if (channel->band == NL80211_BAND_6GHZ &&
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cfg80211_channel_is_psc(channel))
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ch->psc_channel = true;
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ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
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"mac channel [%d/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
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i, params->nallchans,
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ch->mhz, ch->maxpower, ch->maxregpower,
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ch->antennamax, ch->phy_mode);
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ch++;
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/* TODO: use quarrter/half rate, cfreq12, dfs_cfreq2
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* set_agile, reg_class_idx
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*/
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}
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}
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ret = ath11k_wmi_send_scan_chan_list_cmd(ar, params);
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kfree(params);
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return ret;
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}
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static void ath11k_copy_regd(struct ieee80211_regdomain *regd_orig,
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struct ieee80211_regdomain *regd_copy)
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{
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u8 i;
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/* The caller should have checked error conditions */
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memcpy(regd_copy, regd_orig, sizeof(*regd_orig));
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for (i = 0; i < regd_orig->n_reg_rules; i++)
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memcpy(®d_copy->reg_rules[i], ®d_orig->reg_rules[i],
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sizeof(struct ieee80211_reg_rule));
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}
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int ath11k_regd_update(struct ath11k *ar)
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{
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struct ieee80211_regdomain *regd, *regd_copy = NULL;
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int ret, regd_len, pdev_id;
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struct ath11k_base *ab;
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ab = ar->ab;
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pdev_id = ar->pdev_idx;
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spin_lock_bh(&ab->base_lock);
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/* Prefer the latest regd update over default if it's available */
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if (ab->new_regd[pdev_id]) {
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regd = ab->new_regd[pdev_id];
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} else {
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/* Apply the regd received during init through
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* WMI_REG_CHAN_LIST_CC event. In case of failure to
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* receive the regd, initialize with a default world
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* regulatory.
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*/
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if (ab->default_regd[pdev_id]) {
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regd = ab->default_regd[pdev_id];
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} else {
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ath11k_warn(ab,
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"failed to receive default regd during init\n");
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regd = (struct ieee80211_regdomain *)&ath11k_world_regd;
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}
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}
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if (!regd) {
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ret = -EINVAL;
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spin_unlock_bh(&ab->base_lock);
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goto err;
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}
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regd_len = sizeof(*regd) + (regd->n_reg_rules *
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sizeof(struct ieee80211_reg_rule));
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regd_copy = kzalloc(regd_len, GFP_ATOMIC);
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if (regd_copy)
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ath11k_copy_regd(regd, regd_copy);
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spin_unlock_bh(&ab->base_lock);
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if (!regd_copy) {
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ret = -ENOMEM;
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goto err;
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}
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ret = regulatory_set_wiphy_regd(ar->hw->wiphy, regd_copy);
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kfree(regd_copy);
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if (ret)
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goto err;
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if (ar->state == ATH11K_STATE_ON) {
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ret = ath11k_reg_update_chan_list(ar, true);
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if (ret)
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goto err;
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}
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return 0;
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err:
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ath11k_warn(ab, "failed to perform regd update : %d\n", ret);
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return ret;
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}
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static enum nl80211_dfs_regions
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ath11k_map_fw_dfs_region(enum ath11k_dfs_region dfs_region)
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{
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switch (dfs_region) {
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case ATH11K_DFS_REG_FCC:
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case ATH11K_DFS_REG_CN:
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return NL80211_DFS_FCC;
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case ATH11K_DFS_REG_ETSI:
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case ATH11K_DFS_REG_KR:
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return NL80211_DFS_ETSI;
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case ATH11K_DFS_REG_MKK:
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case ATH11K_DFS_REG_MKK_N:
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return NL80211_DFS_JP;
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default:
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return NL80211_DFS_UNSET;
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}
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}
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static u32 ath11k_map_fw_reg_flags(u16 reg_flags)
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{
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u32 flags = 0;
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if (reg_flags & REGULATORY_CHAN_NO_IR)
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flags = NL80211_RRF_NO_IR;
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if (reg_flags & REGULATORY_CHAN_RADAR)
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flags |= NL80211_RRF_DFS;
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if (reg_flags & REGULATORY_CHAN_NO_OFDM)
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flags |= NL80211_RRF_NO_OFDM;
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if (reg_flags & REGULATORY_CHAN_INDOOR_ONLY)
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flags |= NL80211_RRF_NO_OUTDOOR;
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if (reg_flags & REGULATORY_CHAN_NO_HT40)
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flags |= NL80211_RRF_NO_HT40;
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if (reg_flags & REGULATORY_CHAN_NO_80MHZ)
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flags |= NL80211_RRF_NO_80MHZ;
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if (reg_flags & REGULATORY_CHAN_NO_160MHZ)
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flags |= NL80211_RRF_NO_160MHZ;
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return flags;
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}
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static bool
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ath11k_reg_can_intersect(struct ieee80211_reg_rule *rule1,
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struct ieee80211_reg_rule *rule2)
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{
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u32 start_freq1, end_freq1;
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u32 start_freq2, end_freq2;
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start_freq1 = rule1->freq_range.start_freq_khz;
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start_freq2 = rule2->freq_range.start_freq_khz;
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end_freq1 = rule1->freq_range.end_freq_khz;
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end_freq2 = rule2->freq_range.end_freq_khz;
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if ((start_freq1 >= start_freq2 &&
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start_freq1 < end_freq2) ||
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(start_freq2 > start_freq1 &&
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start_freq2 < end_freq1))
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return true;
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/* TODO: Should we restrict intersection feasibility
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* based on min bandwidth of the intersected region also,
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* say the intersected rule should have a min bandwidth
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* of 20MHz?
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*/
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return false;
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}
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static void ath11k_reg_intersect_rules(struct ieee80211_reg_rule *rule1,
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struct ieee80211_reg_rule *rule2,
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struct ieee80211_reg_rule *new_rule)
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{
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u32 start_freq1, end_freq1;
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u32 start_freq2, end_freq2;
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u32 freq_diff, max_bw;
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start_freq1 = rule1->freq_range.start_freq_khz;
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start_freq2 = rule2->freq_range.start_freq_khz;
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end_freq1 = rule1->freq_range.end_freq_khz;
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end_freq2 = rule2->freq_range.end_freq_khz;
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new_rule->freq_range.start_freq_khz = max_t(u32, start_freq1,
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start_freq2);
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new_rule->freq_range.end_freq_khz = min_t(u32, end_freq1, end_freq2);
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freq_diff = new_rule->freq_range.end_freq_khz -
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new_rule->freq_range.start_freq_khz;
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max_bw = min_t(u32, rule1->freq_range.max_bandwidth_khz,
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rule2->freq_range.max_bandwidth_khz);
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new_rule->freq_range.max_bandwidth_khz = min_t(u32, max_bw, freq_diff);
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new_rule->power_rule.max_antenna_gain =
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min_t(u32, rule1->power_rule.max_antenna_gain,
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rule2->power_rule.max_antenna_gain);
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new_rule->power_rule.max_eirp = min_t(u32, rule1->power_rule.max_eirp,
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rule2->power_rule.max_eirp);
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/* Use the flags of both the rules */
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new_rule->flags = rule1->flags | rule2->flags;
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/* To be safe, lts use the max cac timeout of both rules */
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new_rule->dfs_cac_ms = max_t(u32, rule1->dfs_cac_ms,
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rule2->dfs_cac_ms);
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}
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static struct ieee80211_regdomain *
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ath11k_regd_intersect(struct ieee80211_regdomain *default_regd,
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struct ieee80211_regdomain *curr_regd)
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{
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u8 num_old_regd_rules, num_curr_regd_rules, num_new_regd_rules;
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struct ieee80211_reg_rule *old_rule, *curr_rule, *new_rule;
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struct ieee80211_regdomain *new_regd = NULL;
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u8 i, j, k;
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num_old_regd_rules = default_regd->n_reg_rules;
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num_curr_regd_rules = curr_regd->n_reg_rules;
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num_new_regd_rules = 0;
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/* Find the number of intersecting rules to allocate new regd memory */
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for (i = 0; i < num_old_regd_rules; i++) {
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old_rule = default_regd->reg_rules + i;
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for (j = 0; j < num_curr_regd_rules; j++) {
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curr_rule = curr_regd->reg_rules + j;
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if (ath11k_reg_can_intersect(old_rule, curr_rule))
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num_new_regd_rules++;
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}
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}
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if (!num_new_regd_rules)
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return NULL;
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new_regd = kzalloc(sizeof(*new_regd) + (num_new_regd_rules *
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sizeof(struct ieee80211_reg_rule)),
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GFP_ATOMIC);
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if (!new_regd)
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return NULL;
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/* We set the new country and dfs region directly and only trim
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* the freq, power, antenna gain by intersecting with the
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* default regdomain. Also MAX of the dfs cac timeout is selected.
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*/
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new_regd->n_reg_rules = num_new_regd_rules;
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memcpy(new_regd->alpha2, curr_regd->alpha2, sizeof(new_regd->alpha2));
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new_regd->dfs_region = curr_regd->dfs_region;
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new_rule = new_regd->reg_rules;
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for (i = 0, k = 0; i < num_old_regd_rules; i++) {
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old_rule = default_regd->reg_rules + i;
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for (j = 0; j < num_curr_regd_rules; j++) {
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curr_rule = curr_regd->reg_rules + j;
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if (ath11k_reg_can_intersect(old_rule, curr_rule))
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ath11k_reg_intersect_rules(old_rule, curr_rule,
|
|
(new_rule + k++));
|
|
}
|
|
}
|
|
return new_regd;
|
|
}
|
|
|
|
static const char *
|
|
ath11k_reg_get_regdom_str(enum nl80211_dfs_regions dfs_region)
|
|
{
|
|
switch (dfs_region) {
|
|
case NL80211_DFS_FCC:
|
|
return "FCC";
|
|
case NL80211_DFS_ETSI:
|
|
return "ETSI";
|
|
case NL80211_DFS_JP:
|
|
return "JP";
|
|
default:
|
|
return "UNSET";
|
|
}
|
|
}
|
|
|
|
static u16
|
|
ath11k_reg_adjust_bw(u16 start_freq, u16 end_freq, u16 max_bw)
|
|
{
|
|
u16 bw;
|
|
|
|
if (end_freq <= start_freq)
|
|
return 0;
|
|
|
|
bw = end_freq - start_freq;
|
|
bw = min_t(u16, bw, max_bw);
|
|
|
|
if (bw >= 80 && bw < 160)
|
|
bw = 80;
|
|
else if (bw >= 40 && bw < 80)
|
|
bw = 40;
|
|
else if (bw >= 20 && bw < 40)
|
|
bw = 20;
|
|
else
|
|
bw = 0;
|
|
|
|
return bw;
|
|
}
|
|
|
|
static void
|
|
ath11k_reg_update_rule(struct ieee80211_reg_rule *reg_rule, u32 start_freq,
|
|
u32 end_freq, u32 bw, u32 ant_gain, u32 reg_pwr,
|
|
u32 reg_flags)
|
|
{
|
|
reg_rule->freq_range.start_freq_khz = MHZ_TO_KHZ(start_freq);
|
|
reg_rule->freq_range.end_freq_khz = MHZ_TO_KHZ(end_freq);
|
|
reg_rule->freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw);
|
|
reg_rule->power_rule.max_antenna_gain = DBI_TO_MBI(ant_gain);
|
|
reg_rule->power_rule.max_eirp = DBM_TO_MBM(reg_pwr);
|
|
reg_rule->flags = reg_flags;
|
|
}
|
|
|
|
static void
|
|
ath11k_reg_update_weather_radar_band(struct ath11k_base *ab,
|
|
struct ieee80211_regdomain *regd,
|
|
struct cur_reg_rule *reg_rule,
|
|
u8 *rule_idx, u32 flags, u16 max_bw)
|
|
{
|
|
u32 start_freq;
|
|
u32 end_freq;
|
|
u16 bw;
|
|
u8 i;
|
|
|
|
i = *rule_idx;
|
|
|
|
/* there might be situations when even the input rule must be dropped */
|
|
i--;
|
|
|
|
/* frequencies below weather radar */
|
|
bw = ath11k_reg_adjust_bw(reg_rule->start_freq,
|
|
ETSI_WEATHER_RADAR_BAND_LOW, max_bw);
|
|
if (bw > 0) {
|
|
i++;
|
|
|
|
ath11k_reg_update_rule(regd->reg_rules + i,
|
|
reg_rule->start_freq,
|
|
ETSI_WEATHER_RADAR_BAND_LOW, bw,
|
|
reg_rule->ant_gain, reg_rule->reg_power,
|
|
flags);
|
|
|
|
ath11k_dbg(ab, ATH11K_DBG_REG,
|
|
"\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
|
|
i + 1, reg_rule->start_freq,
|
|
ETSI_WEATHER_RADAR_BAND_LOW, bw, reg_rule->ant_gain,
|
|
reg_rule->reg_power, regd->reg_rules[i].dfs_cac_ms,
|
|
flags);
|
|
}
|
|
|
|
/* weather radar frequencies */
|
|
start_freq = max_t(u32, reg_rule->start_freq,
|
|
ETSI_WEATHER_RADAR_BAND_LOW);
|
|
end_freq = min_t(u32, reg_rule->end_freq, ETSI_WEATHER_RADAR_BAND_HIGH);
|
|
|
|
bw = ath11k_reg_adjust_bw(start_freq, end_freq, max_bw);
|
|
if (bw > 0) {
|
|
i++;
|
|
|
|
ath11k_reg_update_rule(regd->reg_rules + i, start_freq,
|
|
end_freq, bw, reg_rule->ant_gain,
|
|
reg_rule->reg_power, flags);
|
|
|
|
regd->reg_rules[i].dfs_cac_ms = ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT;
|
|
|
|
ath11k_dbg(ab, ATH11K_DBG_REG,
|
|
"\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
|
|
i + 1, start_freq, end_freq, bw,
|
|
reg_rule->ant_gain, reg_rule->reg_power,
|
|
regd->reg_rules[i].dfs_cac_ms, flags);
|
|
}
|
|
|
|
/* frequencies above weather radar */
|
|
bw = ath11k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_HIGH,
|
|
reg_rule->end_freq, max_bw);
|
|
if (bw > 0) {
|
|
i++;
|
|
|
|
ath11k_reg_update_rule(regd->reg_rules + i,
|
|
ETSI_WEATHER_RADAR_BAND_HIGH,
|
|
reg_rule->end_freq, bw,
|
|
reg_rule->ant_gain, reg_rule->reg_power,
|
|
flags);
|
|
|
|
ath11k_dbg(ab, ATH11K_DBG_REG,
|
|
"\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
|
|
i + 1, ETSI_WEATHER_RADAR_BAND_HIGH,
|
|
reg_rule->end_freq, bw, reg_rule->ant_gain,
|
|
reg_rule->reg_power, regd->reg_rules[i].dfs_cac_ms,
|
|
flags);
|
|
}
|
|
|
|
*rule_idx = i;
|
|
}
|
|
|
|
struct ieee80211_regdomain *
|
|
ath11k_reg_build_regd(struct ath11k_base *ab,
|
|
struct cur_regulatory_info *reg_info, bool intersect)
|
|
{
|
|
struct ieee80211_regdomain *tmp_regd, *default_regd, *new_regd = NULL;
|
|
struct cur_reg_rule *reg_rule;
|
|
u8 i = 0, j = 0;
|
|
u8 num_rules;
|
|
u16 max_bw;
|
|
u32 flags;
|
|
char alpha2[3];
|
|
|
|
num_rules = reg_info->num_5g_reg_rules + reg_info->num_2g_reg_rules;
|
|
|
|
if (!num_rules)
|
|
goto ret;
|
|
|
|
/* Add max additional rules to accommodate weather radar band */
|
|
if (reg_info->dfs_region == ATH11K_DFS_REG_ETSI)
|
|
num_rules += 2;
|
|
|
|
tmp_regd = kzalloc(sizeof(*tmp_regd) +
|
|
(num_rules * sizeof(struct ieee80211_reg_rule)),
|
|
GFP_ATOMIC);
|
|
if (!tmp_regd)
|
|
goto ret;
|
|
|
|
memcpy(tmp_regd->alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1);
|
|
memcpy(alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1);
|
|
alpha2[2] = '\0';
|
|
tmp_regd->dfs_region = ath11k_map_fw_dfs_region(reg_info->dfs_region);
|
|
|
|
ath11k_dbg(ab, ATH11K_DBG_REG,
|
|
"\r\nCountry %s, CFG Regdomain %s FW Regdomain %d, num_reg_rules %d\n",
|
|
alpha2, ath11k_reg_get_regdom_str(tmp_regd->dfs_region),
|
|
reg_info->dfs_region, num_rules);
|
|
/* Update reg_rules[] below. Firmware is expected to
|
|
* send these rules in order(2G rules first and then 5G)
|
|
*/
|
|
for (; i < num_rules; i++) {
|
|
if (reg_info->num_2g_reg_rules &&
|
|
(i < reg_info->num_2g_reg_rules)) {
|
|
reg_rule = reg_info->reg_rules_2g_ptr + i;
|
|
max_bw = min_t(u16, reg_rule->max_bw,
|
|
reg_info->max_bw_2g);
|
|
flags = 0;
|
|
} else if (reg_info->num_5g_reg_rules &&
|
|
(j < reg_info->num_5g_reg_rules)) {
|
|
reg_rule = reg_info->reg_rules_5g_ptr + j++;
|
|
max_bw = min_t(u16, reg_rule->max_bw,
|
|
reg_info->max_bw_5g);
|
|
|
|
/* FW doesn't pass NL80211_RRF_AUTO_BW flag for
|
|
* BW Auto correction, we can enable this by default
|
|
* for all 5G rules here. The regulatory core performs
|
|
* BW correction if required and applies flags as
|
|
* per other BW rule flags we pass from here
|
|
*/
|
|
flags = NL80211_RRF_AUTO_BW;
|
|
} else {
|
|
break;
|
|
}
|
|
|
|
flags |= ath11k_map_fw_reg_flags(reg_rule->flags);
|
|
|
|
ath11k_reg_update_rule(tmp_regd->reg_rules + i,
|
|
reg_rule->start_freq,
|
|
reg_rule->end_freq, max_bw,
|
|
reg_rule->ant_gain, reg_rule->reg_power,
|
|
flags);
|
|
|
|
/* Update dfs cac timeout if the dfs domain is ETSI and the
|
|
* new rule covers weather radar band.
|
|
* Default value of '0' corresponds to 60s timeout, so no
|
|
* need to update that for other rules.
|
|
*/
|
|
if (flags & NL80211_RRF_DFS &&
|
|
reg_info->dfs_region == ATH11K_DFS_REG_ETSI &&
|
|
(reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_LOW &&
|
|
reg_rule->start_freq < ETSI_WEATHER_RADAR_BAND_HIGH)){
|
|
ath11k_reg_update_weather_radar_band(ab, tmp_regd,
|
|
reg_rule, &i,
|
|
flags, max_bw);
|
|
continue;
|
|
}
|
|
|
|
ath11k_dbg(ab, ATH11K_DBG_REG,
|
|
"\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
|
|
i + 1, reg_rule->start_freq, reg_rule->end_freq,
|
|
max_bw, reg_rule->ant_gain, reg_rule->reg_power,
|
|
tmp_regd->reg_rules[i].dfs_cac_ms,
|
|
flags);
|
|
}
|
|
|
|
tmp_regd->n_reg_rules = i;
|
|
|
|
if (intersect) {
|
|
default_regd = ab->default_regd[reg_info->phy_id];
|
|
|
|
/* Get a new regd by intersecting the received regd with
|
|
* our default regd.
|
|
*/
|
|
new_regd = ath11k_regd_intersect(default_regd, tmp_regd);
|
|
kfree(tmp_regd);
|
|
if (!new_regd) {
|
|
ath11k_warn(ab, "Unable to create intersected regdomain\n");
|
|
goto ret;
|
|
}
|
|
} else {
|
|
new_regd = tmp_regd;
|
|
}
|
|
|
|
ret:
|
|
return new_regd;
|
|
}
|
|
|
|
void ath11k_regd_update_work(struct work_struct *work)
|
|
{
|
|
struct ath11k *ar = container_of(work, struct ath11k,
|
|
regd_update_work);
|
|
int ret;
|
|
|
|
ret = ath11k_regd_update(ar);
|
|
if (ret) {
|
|
/* Firmware has already moved to the new regd. We need
|
|
* to maintain channel consistency across FW, Host driver
|
|
* and userspace. Hence as a fallback mechanism we can set
|
|
* the prev or default country code to the firmware.
|
|
*/
|
|
/* TODO: Implement Fallback Mechanism */
|
|
}
|
|
}
|
|
|
|
void ath11k_reg_init(struct ath11k *ar)
|
|
{
|
|
ar->hw->wiphy->regulatory_flags = REGULATORY_WIPHY_SELF_MANAGED;
|
|
ar->hw->wiphy->reg_notifier = ath11k_reg_notifier;
|
|
}
|
|
|
|
void ath11k_reg_free(struct ath11k_base *ab)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ab->hw_params.max_radios; i++) {
|
|
kfree(ab->default_regd[i]);
|
|
kfree(ab->new_regd[i]);
|
|
}
|
|
}
|