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346 lines
8.0 KiB
346 lines
8.0 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright 2015 Intel Deutschland GmbH |
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*/ |
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#include <net/mac80211.h> |
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#include "ieee80211_i.h" |
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#include "trace.h" |
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#include "driver-ops.h" |
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int drv_start(struct ieee80211_local *local) |
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{ |
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int ret; |
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might_sleep(); |
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if (WARN_ON(local->started)) |
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return -EALREADY; |
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trace_drv_start(local); |
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local->started = true; |
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/* allow rx frames */ |
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smp_mb(); |
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ret = local->ops->start(&local->hw); |
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trace_drv_return_int(local, ret); |
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if (ret) |
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local->started = false; |
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return ret; |
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} |
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void drv_stop(struct ieee80211_local *local) |
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{ |
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might_sleep(); |
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if (WARN_ON(!local->started)) |
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return; |
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trace_drv_stop(local); |
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local->ops->stop(&local->hw); |
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trace_drv_return_void(local); |
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/* sync away all work on the tasklet before clearing started */ |
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tasklet_disable(&local->tasklet); |
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tasklet_enable(&local->tasklet); |
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barrier(); |
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local->started = false; |
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} |
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int drv_add_interface(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata) |
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{ |
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int ret; |
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might_sleep(); |
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if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN || |
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(sdata->vif.type == NL80211_IFTYPE_MONITOR && |
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!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) && |
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!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)))) |
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return -EINVAL; |
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trace_drv_add_interface(local, sdata); |
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ret = local->ops->add_interface(&local->hw, &sdata->vif); |
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trace_drv_return_int(local, ret); |
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if (ret == 0) |
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sdata->flags |= IEEE80211_SDATA_IN_DRIVER; |
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return ret; |
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} |
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int drv_change_interface(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata, |
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enum nl80211_iftype type, bool p2p) |
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{ |
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int ret; |
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might_sleep(); |
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if (!check_sdata_in_driver(sdata)) |
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return -EIO; |
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trace_drv_change_interface(local, sdata, type, p2p); |
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ret = local->ops->change_interface(&local->hw, &sdata->vif, type, p2p); |
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trace_drv_return_int(local, ret); |
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return ret; |
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} |
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void drv_remove_interface(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata) |
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{ |
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might_sleep(); |
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if (!check_sdata_in_driver(sdata)) |
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return; |
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trace_drv_remove_interface(local, sdata); |
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local->ops->remove_interface(&local->hw, &sdata->vif); |
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sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; |
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trace_drv_return_void(local); |
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} |
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__must_check |
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int drv_sta_state(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata, |
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struct sta_info *sta, |
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enum ieee80211_sta_state old_state, |
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enum ieee80211_sta_state new_state) |
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{ |
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int ret = 0; |
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might_sleep(); |
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sdata = get_bss_sdata(sdata); |
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if (!check_sdata_in_driver(sdata)) |
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return -EIO; |
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trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state); |
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if (local->ops->sta_state) { |
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ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta, |
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old_state, new_state); |
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} else if (old_state == IEEE80211_STA_AUTH && |
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new_state == IEEE80211_STA_ASSOC) { |
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ret = drv_sta_add(local, sdata, &sta->sta); |
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if (ret == 0) { |
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sta->uploaded = true; |
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if (rcu_access_pointer(sta->sta.rates)) |
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drv_sta_rate_tbl_update(local, sdata, &sta->sta); |
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} |
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} else if (old_state == IEEE80211_STA_ASSOC && |
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new_state == IEEE80211_STA_AUTH) { |
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drv_sta_remove(local, sdata, &sta->sta); |
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} |
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trace_drv_return_int(local, ret); |
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return ret; |
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} |
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__must_check |
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int drv_sta_set_txpwr(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata, |
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struct sta_info *sta) |
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{ |
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int ret = -EOPNOTSUPP; |
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might_sleep(); |
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sdata = get_bss_sdata(sdata); |
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if (!check_sdata_in_driver(sdata)) |
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return -EIO; |
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trace_drv_sta_set_txpwr(local, sdata, &sta->sta); |
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if (local->ops->sta_set_txpwr) |
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ret = local->ops->sta_set_txpwr(&local->hw, &sdata->vif, |
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&sta->sta); |
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trace_drv_return_int(local, ret); |
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return ret; |
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} |
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void drv_sta_rc_update(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata, |
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struct ieee80211_sta *sta, u32 changed) |
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{ |
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sdata = get_bss_sdata(sdata); |
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if (!check_sdata_in_driver(sdata)) |
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return; |
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WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED && |
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(sdata->vif.type != NL80211_IFTYPE_ADHOC && |
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sdata->vif.type != NL80211_IFTYPE_MESH_POINT)); |
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trace_drv_sta_rc_update(local, sdata, sta, changed); |
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if (local->ops->sta_rc_update) |
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local->ops->sta_rc_update(&local->hw, &sdata->vif, |
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sta, changed); |
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trace_drv_return_void(local); |
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} |
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int drv_conf_tx(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata, u16 ac, |
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const struct ieee80211_tx_queue_params *params) |
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{ |
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int ret = -EOPNOTSUPP; |
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might_sleep(); |
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if (!check_sdata_in_driver(sdata)) |
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return -EIO; |
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if (params->cw_min == 0 || params->cw_min > params->cw_max) { |
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/* |
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* If we can't configure hardware anyway, don't warn. We may |
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* never have initialized the CW parameters. |
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*/ |
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WARN_ONCE(local->ops->conf_tx, |
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"%s: invalid CW_min/CW_max: %d/%d\n", |
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sdata->name, params->cw_min, params->cw_max); |
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return -EINVAL; |
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} |
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trace_drv_conf_tx(local, sdata, ac, params); |
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if (local->ops->conf_tx) |
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ret = local->ops->conf_tx(&local->hw, &sdata->vif, |
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ac, params); |
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trace_drv_return_int(local, ret); |
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return ret; |
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} |
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u64 drv_get_tsf(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata) |
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{ |
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u64 ret = -1ULL; |
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might_sleep(); |
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if (!check_sdata_in_driver(sdata)) |
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return ret; |
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trace_drv_get_tsf(local, sdata); |
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if (local->ops->get_tsf) |
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ret = local->ops->get_tsf(&local->hw, &sdata->vif); |
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trace_drv_return_u64(local, ret); |
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return ret; |
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} |
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void drv_set_tsf(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata, |
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u64 tsf) |
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{ |
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might_sleep(); |
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if (!check_sdata_in_driver(sdata)) |
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return; |
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trace_drv_set_tsf(local, sdata, tsf); |
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if (local->ops->set_tsf) |
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local->ops->set_tsf(&local->hw, &sdata->vif, tsf); |
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trace_drv_return_void(local); |
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} |
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void drv_offset_tsf(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata, |
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s64 offset) |
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{ |
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might_sleep(); |
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if (!check_sdata_in_driver(sdata)) |
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return; |
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trace_drv_offset_tsf(local, sdata, offset); |
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if (local->ops->offset_tsf) |
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local->ops->offset_tsf(&local->hw, &sdata->vif, offset); |
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trace_drv_return_void(local); |
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} |
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void drv_reset_tsf(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata) |
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{ |
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might_sleep(); |
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if (!check_sdata_in_driver(sdata)) |
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return; |
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trace_drv_reset_tsf(local, sdata); |
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if (local->ops->reset_tsf) |
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local->ops->reset_tsf(&local->hw, &sdata->vif); |
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trace_drv_return_void(local); |
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} |
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int drv_switch_vif_chanctx(struct ieee80211_local *local, |
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struct ieee80211_vif_chanctx_switch *vifs, |
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int n_vifs, enum ieee80211_chanctx_switch_mode mode) |
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{ |
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int ret = 0; |
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int i; |
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might_sleep(); |
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if (!local->ops->switch_vif_chanctx) |
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return -EOPNOTSUPP; |
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for (i = 0; i < n_vifs; i++) { |
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struct ieee80211_chanctx *new_ctx = |
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container_of(vifs[i].new_ctx, |
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struct ieee80211_chanctx, |
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conf); |
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struct ieee80211_chanctx *old_ctx = |
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container_of(vifs[i].old_ctx, |
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struct ieee80211_chanctx, |
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conf); |
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WARN_ON_ONCE(!old_ctx->driver_present); |
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WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS && |
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new_ctx->driver_present) || |
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(mode == CHANCTX_SWMODE_REASSIGN_VIF && |
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!new_ctx->driver_present)); |
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} |
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trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode); |
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ret = local->ops->switch_vif_chanctx(&local->hw, |
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vifs, n_vifs, mode); |
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trace_drv_return_int(local, ret); |
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if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) { |
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for (i = 0; i < n_vifs; i++) { |
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struct ieee80211_chanctx *new_ctx = |
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container_of(vifs[i].new_ctx, |
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struct ieee80211_chanctx, |
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conf); |
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struct ieee80211_chanctx *old_ctx = |
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container_of(vifs[i].old_ctx, |
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struct ieee80211_chanctx, |
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conf); |
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new_ctx->driver_present = true; |
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old_ctx->driver_present = false; |
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} |
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} |
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return ret; |
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} |
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int drv_ampdu_action(struct ieee80211_local *local, |
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struct ieee80211_sub_if_data *sdata, |
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struct ieee80211_ampdu_params *params) |
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{ |
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int ret = -EOPNOTSUPP; |
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might_sleep(); |
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sdata = get_bss_sdata(sdata); |
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if (!check_sdata_in_driver(sdata)) |
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return -EIO; |
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trace_drv_ampdu_action(local, sdata, params); |
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if (local->ops->ampdu_action) |
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ret = local->ops->ampdu_action(&local->hw, &sdata->vif, params); |
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trace_drv_return_int(local, ret); |
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return ret; |
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}
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