2 * Copyright 2015 Intel Deutschland GmbH
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 #include <net/mac80211.h>
9 #include "ieee80211_i.h"
11 #include "driver-ops.h"
13 int drv_start(struct ieee80211_local *local)
19 if (WARN_ON(local->started))
22 trace_drv_start(local);
23 local->started = true;
26 ret = local->ops->start(&local->hw);
27 trace_drv_return_int(local, ret);
30 local->started = false;
35 void drv_stop(struct ieee80211_local *local)
39 if (WARN_ON(!local->started))
42 trace_drv_stop(local);
43 local->ops->stop(&local->hw);
44 trace_drv_return_void(local);
46 /* sync away all work on the tasklet before clearing started */
47 tasklet_disable(&local->tasklet);
48 tasklet_enable(&local->tasklet);
52 local->started = false;
55 int drv_add_interface(struct ieee80211_local *local,
56 struct ieee80211_sub_if_data *sdata)
62 if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
63 (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
64 !ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) &&
65 !(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))))
68 trace_drv_add_interface(local, sdata);
69 ret = local->ops->add_interface(&local->hw, &sdata->vif);
70 trace_drv_return_int(local, ret);
73 sdata->flags |= IEEE80211_SDATA_IN_DRIVER;
78 int drv_change_interface(struct ieee80211_local *local,
79 struct ieee80211_sub_if_data *sdata,
80 enum nl80211_iftype type, bool p2p)
86 if (!check_sdata_in_driver(sdata))
89 trace_drv_change_interface(local, sdata, type, p2p);
90 ret = local->ops->change_interface(&local->hw, &sdata->vif, type, p2p);
91 trace_drv_return_int(local, ret);
95 void drv_remove_interface(struct ieee80211_local *local,
96 struct ieee80211_sub_if_data *sdata)
100 if (!check_sdata_in_driver(sdata))
103 trace_drv_remove_interface(local, sdata);
104 local->ops->remove_interface(&local->hw, &sdata->vif);
105 sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER;
106 trace_drv_return_void(local);
110 int drv_sta_state(struct ieee80211_local *local,
111 struct ieee80211_sub_if_data *sdata,
112 struct sta_info *sta,
113 enum ieee80211_sta_state old_state,
114 enum ieee80211_sta_state new_state)
120 sdata = get_bss_sdata(sdata);
121 if (!check_sdata_in_driver(sdata))
124 trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
125 if (local->ops->sta_state) {
126 ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta,
127 old_state, new_state);
128 } else if (old_state == IEEE80211_STA_AUTH &&
129 new_state == IEEE80211_STA_ASSOC) {
130 ret = drv_sta_add(local, sdata, &sta->sta);
132 sta->uploaded = true;
133 if (rcu_access_pointer(sta->sta.rates))
134 drv_sta_rate_tbl_update(local, sdata, &sta->sta);
136 } else if (old_state == IEEE80211_STA_ASSOC &&
137 new_state == IEEE80211_STA_AUTH) {
138 drv_sta_remove(local, sdata, &sta->sta);
140 trace_drv_return_int(local, ret);
144 void drv_sta_rc_update(struct ieee80211_local *local,
145 struct ieee80211_sub_if_data *sdata,
146 struct ieee80211_sta *sta, u32 changed)
148 sdata = get_bss_sdata(sdata);
149 if (!check_sdata_in_driver(sdata))
152 WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED &&
153 (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
154 sdata->vif.type != NL80211_IFTYPE_MESH_POINT));
156 trace_drv_sta_rc_update(local, sdata, sta, changed);
157 if (local->ops->sta_rc_update)
158 local->ops->sta_rc_update(&local->hw, &sdata->vif,
161 trace_drv_return_void(local);
164 int drv_conf_tx(struct ieee80211_local *local,
165 struct ieee80211_sub_if_data *sdata, u16 ac,
166 const struct ieee80211_tx_queue_params *params)
168 int ret = -EOPNOTSUPP;
172 if (!check_sdata_in_driver(sdata))
175 if (params->cw_min == 0 || params->cw_min > params->cw_max) {
177 * If we can't configure hardware anyway, don't warn. We may
178 * never have initialized the CW parameters.
180 WARN_ONCE(local->ops->conf_tx,
181 "%s: invalid CW_min/CW_max: %d/%d\n",
182 sdata->name, params->cw_min, params->cw_max);
186 trace_drv_conf_tx(local, sdata, ac, params);
187 if (local->ops->conf_tx)
188 ret = local->ops->conf_tx(&local->hw, &sdata->vif,
190 trace_drv_return_int(local, ret);
194 u64 drv_get_tsf(struct ieee80211_local *local,
195 struct ieee80211_sub_if_data *sdata)
201 if (!check_sdata_in_driver(sdata))
204 trace_drv_get_tsf(local, sdata);
205 if (local->ops->get_tsf)
206 ret = local->ops->get_tsf(&local->hw, &sdata->vif);
207 trace_drv_return_u64(local, ret);
211 void drv_set_tsf(struct ieee80211_local *local,
212 struct ieee80211_sub_if_data *sdata,
217 if (!check_sdata_in_driver(sdata))
220 trace_drv_set_tsf(local, sdata, tsf);
221 if (local->ops->set_tsf)
222 local->ops->set_tsf(&local->hw, &sdata->vif, tsf);
223 trace_drv_return_void(local);
226 void drv_offset_tsf(struct ieee80211_local *local,
227 struct ieee80211_sub_if_data *sdata,
232 if (!check_sdata_in_driver(sdata))
235 trace_drv_offset_tsf(local, sdata, offset);
236 if (local->ops->offset_tsf)
237 local->ops->offset_tsf(&local->hw, &sdata->vif, offset);
238 trace_drv_return_void(local);
241 void drv_reset_tsf(struct ieee80211_local *local,
242 struct ieee80211_sub_if_data *sdata)
246 if (!check_sdata_in_driver(sdata))
249 trace_drv_reset_tsf(local, sdata);
250 if (local->ops->reset_tsf)
251 local->ops->reset_tsf(&local->hw, &sdata->vif);
252 trace_drv_return_void(local);
255 int drv_switch_vif_chanctx(struct ieee80211_local *local,
256 struct ieee80211_vif_chanctx_switch *vifs,
257 int n_vifs, enum ieee80211_chanctx_switch_mode mode)
264 if (!local->ops->switch_vif_chanctx)
267 for (i = 0; i < n_vifs; i++) {
268 struct ieee80211_chanctx *new_ctx =
269 container_of(vifs[i].new_ctx,
270 struct ieee80211_chanctx,
272 struct ieee80211_chanctx *old_ctx =
273 container_of(vifs[i].old_ctx,
274 struct ieee80211_chanctx,
277 WARN_ON_ONCE(!old_ctx->driver_present);
278 WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS &&
279 new_ctx->driver_present) ||
280 (mode == CHANCTX_SWMODE_REASSIGN_VIF &&
281 !new_ctx->driver_present));
284 trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode);
285 ret = local->ops->switch_vif_chanctx(&local->hw,
287 trace_drv_return_int(local, ret);
289 if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
290 for (i = 0; i < n_vifs; i++) {
291 struct ieee80211_chanctx *new_ctx =
292 container_of(vifs[i].new_ctx,
293 struct ieee80211_chanctx,
295 struct ieee80211_chanctx *old_ctx =
296 container_of(vifs[i].old_ctx,
297 struct ieee80211_chanctx,
300 new_ctx->driver_present = true;
301 old_ctx->driver_present = false;
308 int drv_ampdu_action(struct ieee80211_local *local,
309 struct ieee80211_sub_if_data *sdata,
310 struct ieee80211_ampdu_params *params)
312 int ret = -EOPNOTSUPP;
316 sdata = get_bss_sdata(sdata);
317 if (!check_sdata_in_driver(sdata))
320 trace_drv_ampdu_action(local, sdata, params);
322 if (local->ops->ampdu_action)
323 ret = local->ops->ampdu_action(&local->hw, &sdata->vif, params);
325 trace_drv_return_int(local, ret);