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