Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
727da60b | 2 | /* |
968a76ce | 3 | * Copyright 2015 Intel Deutschland GmbH |
727da60b DV |
4 | */ |
5 | #include <net/mac80211.h> | |
6 | #include "ieee80211_i.h" | |
7 | #include "trace.h" | |
8 | #include "driver-ops.h" | |
9 | ||
968a76ce EP |
10 | int drv_start(struct ieee80211_local *local) |
11 | { | |
12 | int ret; | |
13 | ||
14 | might_sleep(); | |
15 | ||
16 | if (WARN_ON(local->started)) | |
17 | return -EALREADY; | |
18 | ||
19 | trace_drv_start(local); | |
20 | local->started = true; | |
21 | /* allow rx frames */ | |
22 | smp_mb(); | |
23 | ret = local->ops->start(&local->hw); | |
24 | trace_drv_return_int(local, ret); | |
25 | ||
26 | if (ret) | |
27 | local->started = false; | |
28 | ||
29 | return ret; | |
30 | } | |
31 | ||
32 | void drv_stop(struct ieee80211_local *local) | |
33 | { | |
34 | might_sleep(); | |
35 | ||
36 | if (WARN_ON(!local->started)) | |
37 | return; | |
38 | ||
39 | trace_drv_stop(local); | |
40 | local->ops->stop(&local->hw); | |
41 | trace_drv_return_void(local); | |
42 | ||
43 | /* sync away all work on the tasklet before clearing started */ | |
44 | tasklet_disable(&local->tasklet); | |
45 | tasklet_enable(&local->tasklet); | |
46 | ||
47 | barrier(); | |
48 | ||
49 | local->started = false; | |
50 | } | |
51 | ||
9aae296a DV |
52 | int drv_add_interface(struct ieee80211_local *local, |
53 | struct ieee80211_sub_if_data *sdata) | |
54 | { | |
55 | int ret; | |
56 | ||
57 | might_sleep(); | |
58 | ||
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) && | |
d8212184 | 62 | !(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)))) |
9aae296a DV |
63 | return -EINVAL; |
64 | ||
65 | trace_drv_add_interface(local, sdata); | |
66 | ret = local->ops->add_interface(&local->hw, &sdata->vif); | |
67 | trace_drv_return_int(local, ret); | |
68 | ||
69 | if (ret == 0) | |
70 | sdata->flags |= IEEE80211_SDATA_IN_DRIVER; | |
71 | ||
72 | return ret; | |
73 | } | |
74 | ||
75 | int drv_change_interface(struct ieee80211_local *local, | |
76 | struct ieee80211_sub_if_data *sdata, | |
77 | enum nl80211_iftype type, bool p2p) | |
78 | { | |
79 | int ret; | |
80 | ||
81 | might_sleep(); | |
82 | ||
83 | if (!check_sdata_in_driver(sdata)) | |
84 | return -EIO; | |
85 | ||
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); | |
89 | return ret; | |
90 | } | |
91 | ||
92 | void drv_remove_interface(struct ieee80211_local *local, | |
93 | struct ieee80211_sub_if_data *sdata) | |
94 | { | |
95 | might_sleep(); | |
96 | ||
97 | if (!check_sdata_in_driver(sdata)) | |
98 | return; | |
99 | ||
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); | |
104 | } | |
105 | ||
727da60b DV |
106 | __must_check |
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) | |
112 | { | |
113 | int ret = 0; | |
114 | ||
115 | might_sleep(); | |
116 | ||
117 | sdata = get_bss_sdata(sdata); | |
118 | if (!check_sdata_in_driver(sdata)) | |
119 | return -EIO; | |
120 | ||
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); | |
128 | if (ret == 0) | |
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); | |
133 | } | |
134 | trace_drv_return_int(local, ret); | |
135 | return ret; | |
136 | } | |
b23dcd4a | 137 | |
ba905bf4 ARN |
138 | __must_check |
139 | int drv_sta_set_txpwr(struct ieee80211_local *local, | |
140 | struct ieee80211_sub_if_data *sdata, | |
141 | struct sta_info *sta) | |
142 | { | |
143 | int ret = -EOPNOTSUPP; | |
144 | ||
145 | might_sleep(); | |
146 | ||
147 | sdata = get_bss_sdata(sdata); | |
148 | if (!check_sdata_in_driver(sdata)) | |
149 | return -EIO; | |
150 | ||
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, | |
154 | &sta->sta); | |
155 | trace_drv_return_int(local, ret); | |
156 | return ret; | |
157 | } | |
158 | ||
4fbd572c DV |
159 | void drv_sta_rc_update(struct ieee80211_local *local, |
160 | struct ieee80211_sub_if_data *sdata, | |
161 | struct ieee80211_sta *sta, u32 changed) | |
162 | { | |
163 | sdata = get_bss_sdata(sdata); | |
164 | if (!check_sdata_in_driver(sdata)) | |
165 | return; | |
166 | ||
167 | WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED && | |
168 | (sdata->vif.type != NL80211_IFTYPE_ADHOC && | |
169 | sdata->vif.type != NL80211_IFTYPE_MESH_POINT)); | |
170 | ||
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, | |
174 | sta, changed); | |
175 | ||
176 | trace_drv_return_void(local); | |
177 | } | |
178 | ||
b23dcd4a DV |
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) | |
182 | { | |
183 | int ret = -EOPNOTSUPP; | |
184 | ||
185 | might_sleep(); | |
186 | ||
187 | if (!check_sdata_in_driver(sdata)) | |
188 | return -EIO; | |
189 | ||
d2b3fe42 BN |
190 | if (params->cw_min == 0 || params->cw_min > params->cw_max) { |
191 | /* | |
192 | * If we can't configure hardware anyway, don't warn. We may | |
193 | * never have initialized the CW parameters. | |
194 | */ | |
195 | WARN_ONCE(local->ops->conf_tx, | |
196 | "%s: invalid CW_min/CW_max: %d/%d\n", | |
197 | sdata->name, params->cw_min, params->cw_max); | |
b23dcd4a | 198 | return -EINVAL; |
d2b3fe42 | 199 | } |
b23dcd4a DV |
200 | |
201 | trace_drv_conf_tx(local, sdata, ac, params); | |
202 | if (local->ops->conf_tx) | |
203 | ret = local->ops->conf_tx(&local->hw, &sdata->vif, | |
204 | ac, params); | |
205 | trace_drv_return_int(local, ret); | |
206 | return ret; | |
207 | } | |
42677ed3 | 208 | |
416eb9fc DV |
209 | u64 drv_get_tsf(struct ieee80211_local *local, |
210 | struct ieee80211_sub_if_data *sdata) | |
211 | { | |
212 | u64 ret = -1ULL; | |
213 | ||
214 | might_sleep(); | |
215 | ||
216 | if (!check_sdata_in_driver(sdata)) | |
217 | return ret; | |
218 | ||
219 | trace_drv_get_tsf(local, sdata); | |
220 | if (local->ops->get_tsf) | |
221 | ret = local->ops->get_tsf(&local->hw, &sdata->vif); | |
222 | trace_drv_return_u64(local, ret); | |
223 | return ret; | |
224 | } | |
225 | ||
226 | void drv_set_tsf(struct ieee80211_local *local, | |
227 | struct ieee80211_sub_if_data *sdata, | |
228 | u64 tsf) | |
229 | { | |
230 | might_sleep(); | |
231 | ||
232 | if (!check_sdata_in_driver(sdata)) | |
233 | return; | |
234 | ||
235 | trace_drv_set_tsf(local, sdata, tsf); | |
236 | if (local->ops->set_tsf) | |
237 | local->ops->set_tsf(&local->hw, &sdata->vif, tsf); | |
238 | trace_drv_return_void(local); | |
239 | } | |
240 | ||
354d381b PT |
241 | void drv_offset_tsf(struct ieee80211_local *local, |
242 | struct ieee80211_sub_if_data *sdata, | |
243 | s64 offset) | |
244 | { | |
245 | might_sleep(); | |
246 | ||
247 | if (!check_sdata_in_driver(sdata)) | |
248 | return; | |
249 | ||
250 | trace_drv_offset_tsf(local, sdata, offset); | |
251 | if (local->ops->offset_tsf) | |
252 | local->ops->offset_tsf(&local->hw, &sdata->vif, offset); | |
253 | trace_drv_return_void(local); | |
254 | } | |
255 | ||
416eb9fc DV |
256 | void drv_reset_tsf(struct ieee80211_local *local, |
257 | struct ieee80211_sub_if_data *sdata) | |
258 | { | |
259 | might_sleep(); | |
260 | ||
261 | if (!check_sdata_in_driver(sdata)) | |
262 | return; | |
263 | ||
264 | trace_drv_reset_tsf(local, sdata); | |
265 | if (local->ops->reset_tsf) | |
266 | local->ops->reset_tsf(&local->hw, &sdata->vif); | |
267 | trace_drv_return_void(local); | |
268 | } | |
269 | ||
42677ed3 DV |
270 | int drv_switch_vif_chanctx(struct ieee80211_local *local, |
271 | struct ieee80211_vif_chanctx_switch *vifs, | |
272 | int n_vifs, enum ieee80211_chanctx_switch_mode mode) | |
273 | { | |
274 | int ret = 0; | |
275 | int i; | |
276 | ||
dcae9e02 C |
277 | might_sleep(); |
278 | ||
42677ed3 DV |
279 | if (!local->ops->switch_vif_chanctx) |
280 | return -EOPNOTSUPP; | |
281 | ||
282 | for (i = 0; i < n_vifs; i++) { | |
283 | struct ieee80211_chanctx *new_ctx = | |
284 | container_of(vifs[i].new_ctx, | |
285 | struct ieee80211_chanctx, | |
286 | conf); | |
287 | struct ieee80211_chanctx *old_ctx = | |
288 | container_of(vifs[i].old_ctx, | |
289 | struct ieee80211_chanctx, | |
290 | conf); | |
291 | ||
292 | WARN_ON_ONCE(!old_ctx->driver_present); | |
293 | WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS && | |
294 | new_ctx->driver_present) || | |
295 | (mode == CHANCTX_SWMODE_REASSIGN_VIF && | |
296 | !new_ctx->driver_present)); | |
297 | } | |
298 | ||
299 | trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode); | |
300 | ret = local->ops->switch_vif_chanctx(&local->hw, | |
301 | vifs, n_vifs, mode); | |
302 | trace_drv_return_int(local, ret); | |
303 | ||
304 | if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) { | |
305 | for (i = 0; i < n_vifs; i++) { | |
306 | struct ieee80211_chanctx *new_ctx = | |
307 | container_of(vifs[i].new_ctx, | |
308 | struct ieee80211_chanctx, | |
309 | conf); | |
310 | struct ieee80211_chanctx *old_ctx = | |
311 | container_of(vifs[i].old_ctx, | |
312 | struct ieee80211_chanctx, | |
313 | conf); | |
314 | ||
315 | new_ctx->driver_present = true; | |
316 | old_ctx->driver_present = false; | |
317 | } | |
318 | } | |
319 | ||
320 | return ret; | |
321 | } | |
6db96838 DV |
322 | |
323 | int drv_ampdu_action(struct ieee80211_local *local, | |
324 | struct ieee80211_sub_if_data *sdata, | |
50ea05ef | 325 | struct ieee80211_ampdu_params *params) |
6db96838 DV |
326 | { |
327 | int ret = -EOPNOTSUPP; | |
328 | ||
329 | might_sleep(); | |
330 | ||
331 | sdata = get_bss_sdata(sdata); | |
332 | if (!check_sdata_in_driver(sdata)) | |
333 | return -EIO; | |
334 | ||
50ea05ef | 335 | trace_drv_ampdu_action(local, sdata, params); |
6db96838 DV |
336 | |
337 | if (local->ops->ampdu_action) | |
50ea05ef | 338 | ret = local->ops->ampdu_action(&local->hw, &sdata->vif, params); |
6db96838 DV |
339 | |
340 | trace_drv_return_int(local, ret); | |
341 | ||
342 | return ret; | |
343 | } |