1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright 2015 Intel Deutschland GmbH
5 #include <net/mac80211.h>
6 #include "ieee80211_i.h"
8 #include "driver-ops.h"
10 int drv_start(struct ieee80211_local *local)
16 if (WARN_ON(local->started))
19 trace_drv_start(local);
20 local->started = true;
23 ret = local->ops->start(&local->hw);
24 trace_drv_return_int(local, ret);
27 local->started = false;
32 void drv_stop(struct ieee80211_local *local)
36 if (WARN_ON(!local->started))
39 trace_drv_stop(local);
40 local->ops->stop(&local->hw);
41 trace_drv_return_void(local);
43 /* sync away all work on the tasklet before clearing started */
44 tasklet_disable(&local->tasklet);
45 tasklet_enable(&local->tasklet);
49 local->started = false;
52 int drv_add_interface(struct ieee80211_local *local,
53 struct ieee80211_sub_if_data *sdata)
59 if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
60 (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
61 !ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) &&
62 !(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))))
65 trace_drv_add_interface(local, sdata);
66 ret = local->ops->add_interface(&local->hw, &sdata->vif);
67 trace_drv_return_int(local, ret);
70 sdata->flags |= IEEE80211_SDATA_IN_DRIVER;
75 int drv_change_interface(struct ieee80211_local *local,
76 struct ieee80211_sub_if_data *sdata,
77 enum nl80211_iftype type, bool p2p)
83 if (!check_sdata_in_driver(sdata))
86 trace_drv_change_interface(local, sdata, type, p2p);
87 ret = local->ops->change_interface(&local->hw, &sdata->vif, type, p2p);
88 trace_drv_return_int(local, ret);
92 void drv_remove_interface(struct ieee80211_local *local,
93 struct ieee80211_sub_if_data *sdata)
97 if (!check_sdata_in_driver(sdata))
100 trace_drv_remove_interface(local, sdata);
101 local->ops->remove_interface(&local->hw, &sdata->vif);
102 sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER;
103 trace_drv_return_void(local);
107 int drv_sta_state(struct ieee80211_local *local,
108 struct ieee80211_sub_if_data *sdata,
109 struct sta_info *sta,
110 enum ieee80211_sta_state old_state,
111 enum ieee80211_sta_state new_state)
117 sdata = get_bss_sdata(sdata);
118 if (!check_sdata_in_driver(sdata))
121 trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
122 if (local->ops->sta_state) {
123 ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta,
124 old_state, new_state);
125 } else if (old_state == IEEE80211_STA_AUTH &&
126 new_state == IEEE80211_STA_ASSOC) {
127 ret = drv_sta_add(local, sdata, &sta->sta);
129 sta->uploaded = true;
130 } else if (old_state == IEEE80211_STA_ASSOC &&
131 new_state == IEEE80211_STA_AUTH) {
132 drv_sta_remove(local, sdata, &sta->sta);
134 trace_drv_return_int(local, ret);
139 int drv_sta_set_txpwr(struct ieee80211_local *local,
140 struct ieee80211_sub_if_data *sdata,
141 struct sta_info *sta)
143 int ret = -EOPNOTSUPP;
147 sdata = get_bss_sdata(sdata);
148 if (!check_sdata_in_driver(sdata))
151 trace_drv_sta_set_txpwr(local, sdata, &sta->sta);
152 if (local->ops->sta_set_txpwr)
153 ret = local->ops->sta_set_txpwr(&local->hw, &sdata->vif,
155 trace_drv_return_int(local, ret);
159 void drv_sta_rc_update(struct ieee80211_local *local,
160 struct ieee80211_sub_if_data *sdata,
161 struct ieee80211_sta *sta, u32 changed)
163 sdata = get_bss_sdata(sdata);
164 if (!check_sdata_in_driver(sdata))
167 WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED &&
168 (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
169 sdata->vif.type != NL80211_IFTYPE_MESH_POINT));
171 trace_drv_sta_rc_update(local, sdata, sta, changed);
172 if (local->ops->sta_rc_update)
173 local->ops->sta_rc_update(&local->hw, &sdata->vif,
176 trace_drv_return_void(local);
179 int drv_conf_tx(struct ieee80211_local *local,
180 struct ieee80211_sub_if_data *sdata, u16 ac,
181 const struct ieee80211_tx_queue_params *params)
183 int ret = -EOPNOTSUPP;
187 if (!check_sdata_in_driver(sdata))
190 if (WARN_ONCE(params->cw_min == 0 ||
191 params->cw_min > params->cw_max,
192 "%s: invalid CW_min/CW_max: %d/%d\n",
193 sdata->name, params->cw_min, params->cw_max))
196 trace_drv_conf_tx(local, sdata, ac, params);
197 if (local->ops->conf_tx)
198 ret = local->ops->conf_tx(&local->hw, &sdata->vif,
200 trace_drv_return_int(local, ret);
204 u64 drv_get_tsf(struct ieee80211_local *local,
205 struct ieee80211_sub_if_data *sdata)
211 if (!check_sdata_in_driver(sdata))
214 trace_drv_get_tsf(local, sdata);
215 if (local->ops->get_tsf)
216 ret = local->ops->get_tsf(&local->hw, &sdata->vif);
217 trace_drv_return_u64(local, ret);
221 void drv_set_tsf(struct ieee80211_local *local,
222 struct ieee80211_sub_if_data *sdata,
227 if (!check_sdata_in_driver(sdata))
230 trace_drv_set_tsf(local, sdata, tsf);
231 if (local->ops->set_tsf)
232 local->ops->set_tsf(&local->hw, &sdata->vif, tsf);
233 trace_drv_return_void(local);
236 void drv_offset_tsf(struct ieee80211_local *local,
237 struct ieee80211_sub_if_data *sdata,
242 if (!check_sdata_in_driver(sdata))
245 trace_drv_offset_tsf(local, sdata, offset);
246 if (local->ops->offset_tsf)
247 local->ops->offset_tsf(&local->hw, &sdata->vif, offset);
248 trace_drv_return_void(local);
251 void drv_reset_tsf(struct ieee80211_local *local,
252 struct ieee80211_sub_if_data *sdata)
256 if (!check_sdata_in_driver(sdata))
259 trace_drv_reset_tsf(local, sdata);
260 if (local->ops->reset_tsf)
261 local->ops->reset_tsf(&local->hw, &sdata->vif);
262 trace_drv_return_void(local);
265 int drv_switch_vif_chanctx(struct ieee80211_local *local,
266 struct ieee80211_vif_chanctx_switch *vifs,
267 int n_vifs, enum ieee80211_chanctx_switch_mode mode)
274 if (!local->ops->switch_vif_chanctx)
277 for (i = 0; i < n_vifs; i++) {
278 struct ieee80211_chanctx *new_ctx =
279 container_of(vifs[i].new_ctx,
280 struct ieee80211_chanctx,
282 struct ieee80211_chanctx *old_ctx =
283 container_of(vifs[i].old_ctx,
284 struct ieee80211_chanctx,
287 WARN_ON_ONCE(!old_ctx->driver_present);
288 WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS &&
289 new_ctx->driver_present) ||
290 (mode == CHANCTX_SWMODE_REASSIGN_VIF &&
291 !new_ctx->driver_present));
294 trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode);
295 ret = local->ops->switch_vif_chanctx(&local->hw,
297 trace_drv_return_int(local, ret);
299 if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
300 for (i = 0; i < n_vifs; i++) {
301 struct ieee80211_chanctx *new_ctx =
302 container_of(vifs[i].new_ctx,
303 struct ieee80211_chanctx,
305 struct ieee80211_chanctx *old_ctx =
306 container_of(vifs[i].old_ctx,
307 struct ieee80211_chanctx,
310 new_ctx->driver_present = true;
311 old_ctx->driver_present = false;
318 int drv_ampdu_action(struct ieee80211_local *local,
319 struct ieee80211_sub_if_data *sdata,
320 struct ieee80211_ampdu_params *params)
322 int ret = -EOPNOTSUPP;
326 sdata = get_bss_sdata(sdata);
327 if (!check_sdata_in_driver(sdata))
330 trace_drv_ampdu_action(local, sdata, params);
332 if (local->ops->ampdu_action)
333 ret = local->ops->ampdu_action(&local->hw, &sdata->vif, params);
335 trace_drv_return_int(local, ret);