Commit | Line | Data |
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95ea3627 | 1 | /* |
811aa9ca | 2 | Copyright (C) 2004 - 2008 rt2x00 SourceForge Project |
95ea3627 ID |
3 | <http://rt2x00.serialmonkey.com> |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the | |
17 | Free Software Foundation, Inc., | |
18 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | */ | |
20 | ||
21 | /* | |
22 | Module: rt2x00lib | |
23 | Abstract: rt2x00 generic device routines. | |
24 | */ | |
25 | ||
95ea3627 ID |
26 | #include <linux/kernel.h> |
27 | #include <linux/module.h> | |
28 | ||
29 | #include "rt2x00.h" | |
30 | #include "rt2x00lib.h" | |
31 | ||
95ea3627 ID |
32 | /* |
33 | * Radio control handlers. | |
34 | */ | |
35 | int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev) | |
36 | { | |
37 | int status; | |
38 | ||
39 | /* | |
40 | * Don't enable the radio twice. | |
41 | * And check if the hardware button has been disabled. | |
42 | */ | |
0262ab0d ID |
43 | if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags) || |
44 | test_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags)) | |
95ea3627 ID |
45 | return 0; |
46 | ||
837e7f24 | 47 | /* |
181d6902 | 48 | * Initialize all data queues. |
837e7f24 | 49 | */ |
798b7adb | 50 | rt2x00queue_init_queues(rt2x00dev); |
837e7f24 | 51 | |
95ea3627 ID |
52 | /* |
53 | * Enable radio. | |
54 | */ | |
a2e1d52a ID |
55 | status = |
56 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_ON); | |
95ea3627 ID |
57 | if (status) |
58 | return status; | |
59 | ||
2b08da3f ID |
60 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_ON); |
61 | ||
a2e1d52a | 62 | rt2x00leds_led_radio(rt2x00dev, true); |
61c2b682 | 63 | rt2x00led_led_activity(rt2x00dev, true); |
a2e1d52a | 64 | |
0262ab0d | 65 | set_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags); |
95ea3627 ID |
66 | |
67 | /* | |
68 | * Enable RX. | |
69 | */ | |
5cbf830e | 70 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON); |
95ea3627 ID |
71 | |
72 | /* | |
73 | * Start the TX queues. | |
74 | */ | |
36d6825b | 75 | ieee80211_wake_queues(rt2x00dev->hw); |
95ea3627 ID |
76 | |
77 | return 0; | |
78 | } | |
79 | ||
80 | void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev) | |
81 | { | |
0262ab0d | 82 | if (!test_and_clear_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
83 | return; |
84 | ||
95ea3627 ID |
85 | /* |
86 | * Stop the TX queues. | |
87 | */ | |
88 | ieee80211_stop_queues(rt2x00dev->hw); | |
89 | ||
90 | /* | |
91 | * Disable RX. | |
92 | */ | |
5cbf830e | 93 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF); |
95ea3627 ID |
94 | |
95 | /* | |
96 | * Disable radio. | |
97 | */ | |
98 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_OFF); | |
2b08da3f | 99 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF); |
61c2b682 | 100 | rt2x00led_led_activity(rt2x00dev, false); |
a2e1d52a | 101 | rt2x00leds_led_radio(rt2x00dev, false); |
95ea3627 ID |
102 | } |
103 | ||
5cbf830e | 104 | void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state) |
95ea3627 | 105 | { |
95ea3627 ID |
106 | /* |
107 | * When we are disabling the RX, we should also stop the link tuner. | |
108 | */ | |
5cbf830e | 109 | if (state == STATE_RADIO_RX_OFF) |
84e3196f | 110 | rt2x00link_stop_tuner(rt2x00dev); |
95ea3627 ID |
111 | |
112 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, state); | |
113 | ||
114 | /* | |
115 | * When we are enabling the RX, we should also start the link tuner. | |
116 | */ | |
84e3196f ID |
117 | if (state == STATE_RADIO_RX_ON) |
118 | rt2x00link_start_tuner(rt2x00dev); | |
95ea3627 ID |
119 | } |
120 | ||
4150c572 JB |
121 | static void rt2x00lib_packetfilter_scheduled(struct work_struct *work) |
122 | { | |
123 | struct rt2x00_dev *rt2x00dev = | |
124 | container_of(work, struct rt2x00_dev, filter_work); | |
5886d0db | 125 | |
133adf08 | 126 | rt2x00dev->ops->lib->config_filter(rt2x00dev, rt2x00dev->packet_filter); |
4150c572 JB |
127 | } |
128 | ||
6bb40dd1 ID |
129 | static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac, |
130 | struct ieee80211_vif *vif) | |
5c58ee51 | 131 | { |
6bb40dd1 ID |
132 | struct rt2x00_dev *rt2x00dev = data; |
133 | struct rt2x00_intf *intf = vif_to_intf(vif); | |
6bb40dd1 ID |
134 | struct ieee80211_bss_conf conf; |
135 | int delayed_flags; | |
136 | ||
137 | /* | |
138 | * Copy all data we need during this action under the protection | |
139 | * of a spinlock. Otherwise race conditions might occur which results | |
140 | * into an invalid configuration. | |
141 | */ | |
142 | spin_lock(&intf->lock); | |
143 | ||
c3fd7b41 | 144 | memcpy(&conf, &vif->bss_conf, sizeof(conf)); |
6bb40dd1 ID |
145 | delayed_flags = intf->delayed_flags; |
146 | intf->delayed_flags = 0; | |
147 | ||
148 | spin_unlock(&intf->lock); | |
149 | ||
980dfcb9 ID |
150 | /* |
151 | * It is possible the radio was disabled while the work had been | |
152 | * scheduled. If that happens we should return here immediately, | |
153 | * note that in the spinlock protected area above the delayed_flags | |
154 | * have been cleared correctly. | |
155 | */ | |
0262ab0d | 156 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
980dfcb9 ID |
157 | return; |
158 | ||
bd88a781 ID |
159 | if (delayed_flags & DELAYED_UPDATE_BEACON) |
160 | rt2x00queue_update_beacon(rt2x00dev, vif); | |
6bb40dd1 | 161 | |
72810379 | 162 | if (delayed_flags & DELAYED_CONFIG_ERP) |
980dfcb9 | 163 | rt2x00lib_config_erp(rt2x00dev, intf, &conf); |
a2e1d52a ID |
164 | |
165 | if (delayed_flags & DELAYED_LED_ASSOC) | |
166 | rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated); | |
6bb40dd1 | 167 | } |
5c58ee51 | 168 | |
6bb40dd1 ID |
169 | static void rt2x00lib_intf_scheduled(struct work_struct *work) |
170 | { | |
171 | struct rt2x00_dev *rt2x00dev = | |
172 | container_of(work, struct rt2x00_dev, intf_work); | |
471b3efd JB |
173 | |
174 | /* | |
6bb40dd1 ID |
175 | * Iterate over each interface and perform the |
176 | * requested configurations. | |
471b3efd | 177 | */ |
6bb40dd1 ID |
178 | ieee80211_iterate_active_interfaces(rt2x00dev->hw, |
179 | rt2x00lib_intf_scheduled_iter, | |
180 | rt2x00dev); | |
5c58ee51 ID |
181 | } |
182 | ||
95ea3627 ID |
183 | /* |
184 | * Interrupt context handlers. | |
185 | */ | |
6bb40dd1 ID |
186 | static void rt2x00lib_beacondone_iter(void *data, u8 *mac, |
187 | struct ieee80211_vif *vif) | |
95ea3627 | 188 | { |
c4da0048 | 189 | struct rt2x00_dev *rt2x00dev = data; |
6bb40dd1 | 190 | struct rt2x00_intf *intf = vif_to_intf(vif); |
95ea3627 | 191 | |
05c914fe JB |
192 | if (vif->type != NL80211_IFTYPE_AP && |
193 | vif->type != NL80211_IFTYPE_ADHOC) | |
95ea3627 ID |
194 | return; |
195 | ||
c95edf54 GW |
196 | /* |
197 | * Clean up the beacon skb. | |
198 | */ | |
c4da0048 | 199 | rt2x00queue_free_skb(rt2x00dev, intf->beacon->skb); |
c95edf54 GW |
200 | intf->beacon->skb = NULL; |
201 | ||
6bb40dd1 ID |
202 | spin_lock(&intf->lock); |
203 | intf->delayed_flags |= DELAYED_UPDATE_BEACON; | |
204 | spin_unlock(&intf->lock); | |
95ea3627 ID |
205 | } |
206 | ||
207 | void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev) | |
208 | { | |
0262ab0d | 209 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
210 | return; |
211 | ||
633257d3 ID |
212 | ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw, |
213 | rt2x00lib_beacondone_iter, | |
214 | rt2x00dev); | |
6bb40dd1 | 215 | |
8e260c22 | 216 | schedule_work(&rt2x00dev->intf_work); |
95ea3627 ID |
217 | } |
218 | EXPORT_SYMBOL_GPL(rt2x00lib_beacondone); | |
219 | ||
181d6902 ID |
220 | void rt2x00lib_txdone(struct queue_entry *entry, |
221 | struct txdone_entry_desc *txdesc) | |
95ea3627 | 222 | { |
181d6902 | 223 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; |
e039fa4a | 224 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); |
e6a9854b | 225 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
d74f5ba4 | 226 | enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); |
e6a9854b | 227 | u8 rate_idx, rate_flags; |
d74f5ba4 ID |
228 | |
229 | /* | |
230 | * Unmap the skb. | |
231 | */ | |
232 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
e039fa4a | 233 | |
2bb057d0 ID |
234 | /* |
235 | * If the IV/EIV data was stripped from the frame before it was | |
236 | * passed to the hardware, we should now reinsert it again because | |
237 | * mac80211 will expect the the same data to be present it the | |
238 | * frame as it was passed to us. | |
239 | */ | |
240 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) | |
241 | rt2x00crypto_tx_insert_iv(entry->skb); | |
242 | ||
e039fa4a JB |
243 | /* |
244 | * Send frame to debugfs immediately, after this call is completed | |
245 | * we are going to overwrite the skb->cb array. | |
246 | */ | |
247 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TXDONE, entry->skb); | |
95ea3627 ID |
248 | |
249 | /* | |
250 | * Update TX statistics. | |
251 | */ | |
fb55f4d1 ID |
252 | rt2x00dev->link.qual.tx_success += |
253 | test_bit(TXDONE_SUCCESS, &txdesc->flags); | |
254 | rt2x00dev->link.qual.tx_failed += | |
cb14cb79 | 255 | test_bit(TXDONE_FAILURE, &txdesc->flags); |
95ea3627 | 256 | |
e6a9854b JB |
257 | rate_idx = skbdesc->tx_rate_idx; |
258 | rate_flags = skbdesc->tx_rate_flags; | |
259 | ||
181d6902 ID |
260 | /* |
261 | * Initialize TX status | |
262 | */ | |
e039fa4a JB |
263 | memset(&tx_info->status, 0, sizeof(tx_info->status)); |
264 | tx_info->status.ack_signal = 0; | |
e6a9854b JB |
265 | tx_info->status.rates[0].idx = rate_idx; |
266 | tx_info->status.rates[0].flags = rate_flags; | |
267 | tx_info->status.rates[0].count = txdesc->retry + 1; | |
268 | tx_info->status.rates[1].idx = -1; /* terminate */ | |
181d6902 | 269 | |
e039fa4a | 270 | if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
fb55f4d1 | 271 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) |
e039fa4a | 272 | tx_info->flags |= IEEE80211_TX_STAT_ACK; |
fb55f4d1 | 273 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 274 | rt2x00dev->low_level_stats.dot11ACKFailureCount++; |
95ea3627 ID |
275 | } |
276 | ||
e6a9854b | 277 | if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
fb55f4d1 | 278 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) |
181d6902 | 279 | rt2x00dev->low_level_stats.dot11RTSSuccessCount++; |
fb55f4d1 | 280 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 281 | rt2x00dev->low_level_stats.dot11RTSFailureCount++; |
95ea3627 ID |
282 | } |
283 | ||
284 | /* | |
e039fa4a JB |
285 | * Only send the status report to mac80211 when TX status was |
286 | * requested by it. If this was a extra frame coming through | |
287 | * a mac80211 library call (RTS/CTS) then we should not send the | |
288 | * status report back. | |
95ea3627 | 289 | */ |
e039fa4a JB |
290 | if (tx_info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) |
291 | ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb); | |
baf26a7e | 292 | else |
fb55f4d1 | 293 | dev_kfree_skb_irq(entry->skb); |
d74f5ba4 ID |
294 | |
295 | /* | |
296 | * Make this entry available for reuse. | |
297 | */ | |
95ea3627 | 298 | entry->skb = NULL; |
d74f5ba4 ID |
299 | entry->flags = 0; |
300 | ||
798b7adb | 301 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 | 302 | |
0262ab0d | 303 | clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); |
d74f5ba4 ID |
304 | rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE); |
305 | ||
306 | /* | |
307 | * If the data queue was below the threshold before the txdone | |
308 | * handler we must make sure the packet queue in the mac80211 stack | |
309 | * is reenabled when the txdone handler has finished. | |
310 | */ | |
311 | if (!rt2x00queue_threshold(entry->queue)) | |
312 | ieee80211_wake_queue(rt2x00dev->hw, qid); | |
95ea3627 ID |
313 | } |
314 | EXPORT_SYMBOL_GPL(rt2x00lib_txdone); | |
315 | ||
c4da0048 GW |
316 | void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, |
317 | struct queue_entry *entry) | |
95ea3627 | 318 | { |
c4da0048 GW |
319 | struct rxdone_entry_desc rxdesc; |
320 | struct sk_buff *skb; | |
95ea3627 | 321 | struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status; |
8318d78a | 322 | struct ieee80211_supported_band *sband; |
70e2fed4 | 323 | const struct rt2x00_rate *rate; |
2bb057d0 | 324 | unsigned int header_length; |
239c249d | 325 | unsigned int align; |
95ea3627 | 326 | unsigned int i; |
70e2fed4 | 327 | int idx = -1; |
95ea3627 | 328 | |
c4da0048 GW |
329 | /* |
330 | * Allocate a new sk_buffer. If no new buffer available, drop the | |
331 | * received frame and reuse the existing buffer. | |
332 | */ | |
333 | skb = rt2x00queue_alloc_rxskb(rt2x00dev, entry); | |
334 | if (!skb) | |
335 | return; | |
336 | ||
337 | /* | |
338 | * Unmap the skb. | |
339 | */ | |
340 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
341 | ||
342 | /* | |
343 | * Extract the RXD details. | |
344 | */ | |
345 | memset(&rxdesc, 0, sizeof(rxdesc)); | |
346 | rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc); | |
95ea3627 | 347 | |
239c249d GW |
348 | /* |
349 | * The data behind the ieee80211 header must be | |
a9f853dd | 350 | * aligned on a 4 byte boundary. |
239c249d | 351 | */ |
2bb057d0 ID |
352 | header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
353 | align = ((unsigned long)(entry->skb->data + header_length)) & 3; | |
239c249d | 354 | |
2bb057d0 ID |
355 | /* |
356 | * Hardware might have stripped the IV/EIV/ICV data, | |
357 | * in that case it is possible that the data was | |
358 | * provided seperately (through hardware descriptor) | |
359 | * in which case we should reinsert the data into the frame. | |
360 | */ | |
74415edb ID |
361 | if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) && |
362 | (rxdesc.flags & RX_FLAG_IV_STRIPPED)) { | |
2bb057d0 ID |
363 | rt2x00crypto_rx_insert_iv(entry->skb, align, |
364 | header_length, &rxdesc); | |
365 | } else if (align) { | |
239c249d GW |
366 | skb_push(entry->skb, align); |
367 | /* Move entire frame in 1 command */ | |
368 | memmove(entry->skb->data, entry->skb->data + align, | |
c4da0048 | 369 | rxdesc.size); |
239c249d GW |
370 | } |
371 | ||
372 | /* Update data pointers, trim buffer to correct size */ | |
c4da0048 | 373 | skb_trim(entry->skb, rxdesc.size); |
239c249d | 374 | |
95ea3627 ID |
375 | /* |
376 | * Update RX statistics. | |
377 | */ | |
8318d78a JB |
378 | sband = &rt2x00dev->bands[rt2x00dev->curr_band]; |
379 | for (i = 0; i < sband->n_bitrates; i++) { | |
70e2fed4 | 380 | rate = rt2x00_get_rate(sband->bitrates[i].hw_value); |
95ea3627 | 381 | |
c4da0048 GW |
382 | if (((rxdesc.dev_flags & RXDONE_SIGNAL_PLCP) && |
383 | (rate->plcp == rxdesc.signal)) || | |
6c6aa3c0 | 384 | ((rxdesc.dev_flags & RXDONE_SIGNAL_BITRATE) && |
c4da0048 | 385 | (rate->bitrate == rxdesc.signal))) { |
8318d78a | 386 | idx = i; |
95ea3627 ID |
387 | break; |
388 | } | |
389 | } | |
390 | ||
866a0503 ID |
391 | if (idx < 0) { |
392 | WARNING(rt2x00dev, "Frame received with unrecognized signal," | |
c4da0048 GW |
393 | "signal=0x%.2x, plcp=%d.\n", rxdesc.signal, |
394 | !!(rxdesc.dev_flags & RXDONE_SIGNAL_PLCP)); | |
866a0503 ID |
395 | idx = 0; |
396 | } | |
397 | ||
61af43c5 | 398 | /* |
84e3196f | 399 | * Update extra components |
61af43c5 | 400 | */ |
84e3196f ID |
401 | rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc); |
402 | rt2x00debug_update_crypto(rt2x00dev, &rxdesc); | |
69f81a2c | 403 | |
ae73e58e | 404 | rx_status->mactime = rxdesc.timestamp; |
8318d78a | 405 | rx_status->rate_idx = idx; |
84e3196f | 406 | rx_status->qual = rt2x00link_calculate_signal(rt2x00dev, rxdesc.rssi); |
c4da0048 GW |
407 | rx_status->signal = rxdesc.rssi; |
408 | rx_status->flag = rxdesc.flags; | |
69f81a2c | 409 | rx_status->antenna = rt2x00dev->link.ant.active.rx; |
95ea3627 ID |
410 | |
411 | /* | |
181d6902 ID |
412 | * Send frame to mac80211 & debugfs. |
413 | * mac80211 will clean up the skb structure. | |
95ea3627 | 414 | */ |
5a6e5999 | 415 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb); |
181d6902 | 416 | ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb, rx_status); |
c4da0048 GW |
417 | |
418 | /* | |
419 | * Replace the skb with the freshly allocated one. | |
420 | */ | |
421 | entry->skb = skb; | |
d74f5ba4 ID |
422 | entry->flags = 0; |
423 | ||
798b7adb | 424 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 ID |
425 | |
426 | rt2x00queue_index_inc(entry->queue, Q_INDEX); | |
95ea3627 ID |
427 | } |
428 | EXPORT_SYMBOL_GPL(rt2x00lib_rxdone); | |
429 | ||
95ea3627 ID |
430 | /* |
431 | * Driver initialization handlers. | |
432 | */ | |
70e2fed4 ID |
433 | const struct rt2x00_rate rt2x00_supported_rates[12] = { |
434 | { | |
3d8606a6 | 435 | .flags = DEV_RATE_CCK, |
70e2fed4 | 436 | .bitrate = 10, |
aa776721 | 437 | .ratemask = BIT(0), |
70e2fed4 ID |
438 | .plcp = 0x00, |
439 | }, | |
440 | { | |
3d8606a6 | 441 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 442 | .bitrate = 20, |
aa776721 | 443 | .ratemask = BIT(1), |
70e2fed4 ID |
444 | .plcp = 0x01, |
445 | }, | |
446 | { | |
3d8606a6 | 447 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 448 | .bitrate = 55, |
aa776721 | 449 | .ratemask = BIT(2), |
70e2fed4 ID |
450 | .plcp = 0x02, |
451 | }, | |
452 | { | |
3d8606a6 | 453 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 454 | .bitrate = 110, |
aa776721 | 455 | .ratemask = BIT(3), |
70e2fed4 ID |
456 | .plcp = 0x03, |
457 | }, | |
458 | { | |
3d8606a6 | 459 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 460 | .bitrate = 60, |
aa776721 | 461 | .ratemask = BIT(4), |
70e2fed4 ID |
462 | .plcp = 0x0b, |
463 | }, | |
464 | { | |
465 | .flags = DEV_RATE_OFDM, | |
466 | .bitrate = 90, | |
aa776721 | 467 | .ratemask = BIT(5), |
70e2fed4 ID |
468 | .plcp = 0x0f, |
469 | }, | |
470 | { | |
3d8606a6 | 471 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 472 | .bitrate = 120, |
aa776721 | 473 | .ratemask = BIT(6), |
70e2fed4 ID |
474 | .plcp = 0x0a, |
475 | }, | |
476 | { | |
477 | .flags = DEV_RATE_OFDM, | |
478 | .bitrate = 180, | |
aa776721 | 479 | .ratemask = BIT(7), |
70e2fed4 ID |
480 | .plcp = 0x0e, |
481 | }, | |
482 | { | |
3d8606a6 | 483 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 484 | .bitrate = 240, |
aa776721 | 485 | .ratemask = BIT(8), |
70e2fed4 ID |
486 | .plcp = 0x09, |
487 | }, | |
488 | { | |
489 | .flags = DEV_RATE_OFDM, | |
490 | .bitrate = 360, | |
aa776721 | 491 | .ratemask = BIT(9), |
70e2fed4 ID |
492 | .plcp = 0x0d, |
493 | }, | |
494 | { | |
495 | .flags = DEV_RATE_OFDM, | |
496 | .bitrate = 480, | |
aa776721 | 497 | .ratemask = BIT(10), |
70e2fed4 ID |
498 | .plcp = 0x08, |
499 | }, | |
500 | { | |
501 | .flags = DEV_RATE_OFDM, | |
502 | .bitrate = 540, | |
aa776721 | 503 | .ratemask = BIT(11), |
70e2fed4 ID |
504 | .plcp = 0x0c, |
505 | }, | |
506 | }; | |
507 | ||
95ea3627 ID |
508 | static void rt2x00lib_channel(struct ieee80211_channel *entry, |
509 | const int channel, const int tx_power, | |
510 | const int value) | |
511 | { | |
f2a3c7f5 | 512 | entry->center_freq = ieee80211_channel_to_frequency(channel); |
8318d78a JB |
513 | entry->hw_value = value; |
514 | entry->max_power = tx_power; | |
515 | entry->max_antenna_gain = 0xff; | |
95ea3627 ID |
516 | } |
517 | ||
518 | static void rt2x00lib_rate(struct ieee80211_rate *entry, | |
70e2fed4 | 519 | const u16 index, const struct rt2x00_rate *rate) |
95ea3627 | 520 | { |
70e2fed4 ID |
521 | entry->flags = 0; |
522 | entry->bitrate = rate->bitrate; | |
3ea96463 ID |
523 | entry->hw_value =index; |
524 | entry->hw_value_short = index; | |
70e2fed4 | 525 | |
3ea96463 | 526 | if (rate->flags & DEV_RATE_SHORT_PREAMBLE) |
70e2fed4 | 527 | entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE; |
95ea3627 ID |
528 | } |
529 | ||
530 | static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev, | |
531 | struct hw_mode_spec *spec) | |
532 | { | |
533 | struct ieee80211_hw *hw = rt2x00dev->hw; | |
95ea3627 ID |
534 | struct ieee80211_channel *channels; |
535 | struct ieee80211_rate *rates; | |
31562e80 | 536 | unsigned int num_rates; |
95ea3627 | 537 | unsigned int i; |
95ea3627 | 538 | |
31562e80 ID |
539 | num_rates = 0; |
540 | if (spec->supported_rates & SUPPORT_RATE_CCK) | |
541 | num_rates += 4; | |
542 | if (spec->supported_rates & SUPPORT_RATE_OFDM) | |
543 | num_rates += 8; | |
95ea3627 ID |
544 | |
545 | channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL); | |
546 | if (!channels) | |
8318d78a | 547 | return -ENOMEM; |
95ea3627 | 548 | |
31562e80 | 549 | rates = kzalloc(sizeof(*rates) * num_rates, GFP_KERNEL); |
95ea3627 ID |
550 | if (!rates) |
551 | goto exit_free_channels; | |
552 | ||
553 | /* | |
554 | * Initialize Rate list. | |
555 | */ | |
31562e80 | 556 | for (i = 0; i < num_rates; i++) |
8f5fa7f0 | 557 | rt2x00lib_rate(&rates[i], i, rt2x00_get_rate(i)); |
95ea3627 ID |
558 | |
559 | /* | |
560 | * Initialize Channel list. | |
561 | */ | |
562 | for (i = 0; i < spec->num_channels; i++) { | |
95ea3627 | 563 | rt2x00lib_channel(&channels[i], |
8c5e7a5f ID |
564 | spec->channels[i].channel, |
565 | spec->channels_info[i].tx_power1, i); | |
95ea3627 ID |
566 | } |
567 | ||
568 | /* | |
31562e80 | 569 | * Intitialize 802.11b, 802.11g |
95ea3627 | 570 | * Rates: CCK, OFDM. |
8318d78a | 571 | * Channels: 2.4 GHz |
95ea3627 | 572 | */ |
47ac2683 | 573 | if (spec->supported_bands & SUPPORT_BAND_2GHZ) { |
31562e80 ID |
574 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_channels = 14; |
575 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_bitrates = num_rates; | |
576 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].channels = channels; | |
577 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates; | |
578 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
579 | &rt2x00dev->bands[IEEE80211_BAND_2GHZ]; | |
95ea3627 ID |
580 | } |
581 | ||
582 | /* | |
583 | * Intitialize 802.11a | |
584 | * Rates: OFDM. | |
585 | * Channels: OFDM, UNII, HiperLAN2. | |
586 | */ | |
47ac2683 | 587 | if (spec->supported_bands & SUPPORT_BAND_5GHZ) { |
31562e80 ID |
588 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_channels = |
589 | spec->num_channels - 14; | |
590 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_bitrates = | |
591 | num_rates - 4; | |
592 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].channels = &channels[14]; | |
593 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4]; | |
594 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
595 | &rt2x00dev->bands[IEEE80211_BAND_5GHZ]; | |
95ea3627 ID |
596 | } |
597 | ||
95ea3627 ID |
598 | return 0; |
599 | ||
8318d78a | 600 | exit_free_channels: |
95ea3627 | 601 | kfree(channels); |
95ea3627 ID |
602 | ERROR(rt2x00dev, "Allocation ieee80211 modes failed.\n"); |
603 | return -ENOMEM; | |
604 | } | |
605 | ||
606 | static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev) | |
607 | { | |
0262ab0d | 608 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
95ea3627 ID |
609 | ieee80211_unregister_hw(rt2x00dev->hw); |
610 | ||
8318d78a JB |
611 | if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) { |
612 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels); | |
613 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->bitrates); | |
614 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; | |
615 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; | |
95ea3627 | 616 | } |
8c5e7a5f ID |
617 | |
618 | kfree(rt2x00dev->spec.channels_info); | |
95ea3627 ID |
619 | } |
620 | ||
621 | static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) | |
622 | { | |
623 | struct hw_mode_spec *spec = &rt2x00dev->spec; | |
624 | int status; | |
625 | ||
0262ab0d ID |
626 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
627 | return 0; | |
628 | ||
95ea3627 ID |
629 | /* |
630 | * Initialize HW modes. | |
631 | */ | |
632 | status = rt2x00lib_probe_hw_modes(rt2x00dev, spec); | |
633 | if (status) | |
634 | return status; | |
635 | ||
61448f88 GW |
636 | /* |
637 | * Initialize HW fields. | |
638 | */ | |
639 | rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues; | |
640 | ||
95ea3627 ID |
641 | /* |
642 | * Register HW. | |
643 | */ | |
644 | status = ieee80211_register_hw(rt2x00dev->hw); | |
645 | if (status) { | |
646 | rt2x00lib_remove_hw(rt2x00dev); | |
647 | return status; | |
648 | } | |
649 | ||
0262ab0d | 650 | set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags); |
95ea3627 ID |
651 | |
652 | return 0; | |
653 | } | |
654 | ||
655 | /* | |
656 | * Initialization/uninitialization handlers. | |
657 | */ | |
e37ea213 | 658 | static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 | 659 | { |
0262ab0d | 660 | if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
661 | return; |
662 | ||
663 | /* | |
1682fe6d | 664 | * Unregister extra components. |
95ea3627 ID |
665 | */ |
666 | rt2x00rfkill_unregister(rt2x00dev); | |
667 | ||
668 | /* | |
669 | * Allow the HW to uninitialize. | |
670 | */ | |
671 | rt2x00dev->ops->lib->uninitialize(rt2x00dev); | |
672 | ||
673 | /* | |
181d6902 | 674 | * Free allocated queue entries. |
95ea3627 | 675 | */ |
181d6902 | 676 | rt2x00queue_uninitialize(rt2x00dev); |
95ea3627 ID |
677 | } |
678 | ||
e37ea213 | 679 | static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 ID |
680 | { |
681 | int status; | |
682 | ||
0262ab0d | 683 | if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
684 | return 0; |
685 | ||
686 | /* | |
181d6902 | 687 | * Allocate all queue entries. |
95ea3627 | 688 | */ |
181d6902 ID |
689 | status = rt2x00queue_initialize(rt2x00dev); |
690 | if (status) | |
95ea3627 | 691 | return status; |
95ea3627 ID |
692 | |
693 | /* | |
694 | * Initialize the device. | |
695 | */ | |
696 | status = rt2x00dev->ops->lib->initialize(rt2x00dev); | |
ed499983 ID |
697 | if (status) { |
698 | rt2x00queue_uninitialize(rt2x00dev); | |
699 | return status; | |
700 | } | |
95ea3627 | 701 | |
0262ab0d | 702 | set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags); |
95ea3627 ID |
703 | |
704 | /* | |
1682fe6d | 705 | * Register the extra components. |
95ea3627 | 706 | */ |
1682fe6d | 707 | rt2x00rfkill_register(rt2x00dev); |
95ea3627 ID |
708 | |
709 | return 0; | |
95ea3627 ID |
710 | } |
711 | ||
e37ea213 ID |
712 | int rt2x00lib_start(struct rt2x00_dev *rt2x00dev) |
713 | { | |
714 | int retval; | |
715 | ||
0262ab0d | 716 | if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
717 | return 0; |
718 | ||
719 | /* | |
720 | * If this is the first interface which is added, | |
721 | * we should load the firmware now. | |
722 | */ | |
9404ef34 ID |
723 | retval = rt2x00lib_load_firmware(rt2x00dev); |
724 | if (retval) | |
725 | return retval; | |
e37ea213 ID |
726 | |
727 | /* | |
728 | * Initialize the device. | |
729 | */ | |
730 | retval = rt2x00lib_initialize(rt2x00dev); | |
731 | if (retval) | |
732 | return retval; | |
733 | ||
6bb40dd1 ID |
734 | rt2x00dev->intf_ap_count = 0; |
735 | rt2x00dev->intf_sta_count = 0; | |
736 | rt2x00dev->intf_associated = 0; | |
737 | ||
0262ab0d | 738 | set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags); |
e37ea213 ID |
739 | |
740 | return 0; | |
741 | } | |
742 | ||
743 | void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev) | |
744 | { | |
0262ab0d | 745 | if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
746 | return; |
747 | ||
748 | /* | |
749 | * Perhaps we can add something smarter here, | |
750 | * but for now just disabling the radio should do. | |
751 | */ | |
752 | rt2x00lib_disable_radio(rt2x00dev); | |
753 | ||
6bb40dd1 ID |
754 | rt2x00dev->intf_ap_count = 0; |
755 | rt2x00dev->intf_sta_count = 0; | |
756 | rt2x00dev->intf_associated = 0; | |
e37ea213 ID |
757 | } |
758 | ||
95ea3627 ID |
759 | /* |
760 | * driver allocation handlers. | |
761 | */ | |
95ea3627 ID |
762 | int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) |
763 | { | |
764 | int retval = -ENOMEM; | |
765 | ||
8ff48a8b ID |
766 | mutex_init(&rt2x00dev->csr_mutex); |
767 | ||
6bb40dd1 ID |
768 | /* |
769 | * Make room for rt2x00_intf inside the per-interface | |
770 | * structure ieee80211_vif. | |
771 | */ | |
772 | rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf); | |
773 | ||
3514a441 ID |
774 | /* |
775 | * Determine which operating modes are supported, all modes | |
776 | * which require beaconing, depend on the availability of | |
777 | * beacon entries. | |
778 | */ | |
779 | rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
780 | if (rt2x00dev->ops->bcn->entry_num > 0) | |
781 | rt2x00dev->hw->wiphy->interface_modes |= | |
782 | BIT(NL80211_IFTYPE_ADHOC) | | |
783 | BIT(NL80211_IFTYPE_AP); | |
f59ac048 | 784 | |
95ea3627 ID |
785 | /* |
786 | * Let the driver probe the device to detect the capabilities. | |
787 | */ | |
788 | retval = rt2x00dev->ops->lib->probe_hw(rt2x00dev); | |
789 | if (retval) { | |
790 | ERROR(rt2x00dev, "Failed to allocate device.\n"); | |
791 | goto exit; | |
792 | } | |
793 | ||
794 | /* | |
795 | * Initialize configuration work. | |
796 | */ | |
6bb40dd1 | 797 | INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled); |
4150c572 | 798 | INIT_WORK(&rt2x00dev->filter_work, rt2x00lib_packetfilter_scheduled); |
95ea3627 | 799 | |
95ea3627 | 800 | /* |
181d6902 | 801 | * Allocate queue array. |
95ea3627 | 802 | */ |
181d6902 | 803 | retval = rt2x00queue_allocate(rt2x00dev); |
95ea3627 ID |
804 | if (retval) |
805 | goto exit; | |
806 | ||
807 | /* | |
808 | * Initialize ieee80211 structure. | |
809 | */ | |
810 | retval = rt2x00lib_probe_hw(rt2x00dev); | |
811 | if (retval) { | |
812 | ERROR(rt2x00dev, "Failed to initialize hw.\n"); | |
813 | goto exit; | |
814 | } | |
815 | ||
a9450b70 | 816 | /* |
1682fe6d | 817 | * Register extra components. |
a9450b70 | 818 | */ |
84e3196f | 819 | rt2x00link_register(rt2x00dev); |
a9450b70 | 820 | rt2x00leds_register(rt2x00dev); |
1682fe6d | 821 | rt2x00rfkill_allocate(rt2x00dev); |
95ea3627 ID |
822 | rt2x00debug_register(rt2x00dev); |
823 | ||
0262ab0d | 824 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 825 | |
95ea3627 ID |
826 | return 0; |
827 | ||
828 | exit: | |
829 | rt2x00lib_remove_dev(rt2x00dev); | |
830 | ||
831 | return retval; | |
832 | } | |
833 | EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev); | |
834 | ||
835 | void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) | |
836 | { | |
0262ab0d | 837 | clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 838 | |
95ea3627 ID |
839 | /* |
840 | * Disable radio. | |
841 | */ | |
842 | rt2x00lib_disable_radio(rt2x00dev); | |
843 | ||
844 | /* | |
845 | * Uninitialize device. | |
846 | */ | |
847 | rt2x00lib_uninitialize(rt2x00dev); | |
848 | ||
849 | /* | |
1682fe6d | 850 | * Free extra components |
95ea3627 ID |
851 | */ |
852 | rt2x00debug_deregister(rt2x00dev); | |
95ea3627 | 853 | rt2x00rfkill_free(rt2x00dev); |
a9450b70 ID |
854 | rt2x00leds_unregister(rt2x00dev); |
855 | ||
95ea3627 ID |
856 | /* |
857 | * Free ieee80211_hw memory. | |
858 | */ | |
859 | rt2x00lib_remove_hw(rt2x00dev); | |
860 | ||
861 | /* | |
862 | * Free firmware image. | |
863 | */ | |
864 | rt2x00lib_free_firmware(rt2x00dev); | |
865 | ||
866 | /* | |
181d6902 | 867 | * Free queue structures. |
95ea3627 | 868 | */ |
181d6902 | 869 | rt2x00queue_free(rt2x00dev); |
95ea3627 ID |
870 | } |
871 | EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev); | |
872 | ||
873 | /* | |
874 | * Device state handlers | |
875 | */ | |
876 | #ifdef CONFIG_PM | |
877 | int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state) | |
878 | { | |
879 | int retval; | |
880 | ||
881 | NOTICE(rt2x00dev, "Going to sleep.\n"); | |
066cb637 ID |
882 | |
883 | /* | |
884 | * Only continue if mac80211 has open interfaces. | |
885 | */ | |
0262ab0d ID |
886 | if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) || |
887 | !test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) | |
066cb637 | 888 | goto exit; |
0262ab0d ID |
889 | |
890 | set_bit(DEVICE_STATE_STARTED_SUSPEND, &rt2x00dev->flags); | |
95ea3627 ID |
891 | |
892 | /* | |
1682fe6d | 893 | * Disable radio. |
95ea3627 | 894 | */ |
e37ea213 | 895 | rt2x00lib_stop(rt2x00dev); |
95ea3627 | 896 | rt2x00lib_uninitialize(rt2x00dev); |
1682fe6d ID |
897 | |
898 | /* | |
899 | * Suspend/disable extra components. | |
900 | */ | |
a9450b70 | 901 | rt2x00leds_suspend(rt2x00dev); |
95ea3627 ID |
902 | rt2x00debug_deregister(rt2x00dev); |
903 | ||
066cb637 | 904 | exit: |
95ea3627 | 905 | /* |
9896322a ID |
906 | * Set device mode to sleep for power management, |
907 | * on some hardware this call seems to consistently fail. | |
908 | * From the specifications it is hard to tell why it fails, | |
909 | * and if this is a "bad thing". | |
910 | * Overall it is safe to just ignore the failure and | |
911 | * continue suspending. The only downside is that the | |
912 | * device will not be in optimal power save mode, but with | |
913 | * the radio and the other components already disabled the | |
914 | * device is as good as disabled. | |
95ea3627 ID |
915 | */ |
916 | retval = rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP); | |
917 | if (retval) | |
9896322a ID |
918 | WARNING(rt2x00dev, "Device failed to enter sleep state, " |
919 | "continue suspending.\n"); | |
95ea3627 ID |
920 | |
921 | return 0; | |
922 | } | |
923 | EXPORT_SYMBOL_GPL(rt2x00lib_suspend); | |
924 | ||
6bb40dd1 ID |
925 | static void rt2x00lib_resume_intf(void *data, u8 *mac, |
926 | struct ieee80211_vif *vif) | |
927 | { | |
928 | struct rt2x00_dev *rt2x00dev = data; | |
929 | struct rt2x00_intf *intf = vif_to_intf(vif); | |
930 | ||
931 | spin_lock(&intf->lock); | |
932 | ||
933 | rt2x00lib_config_intf(rt2x00dev, intf, | |
934 | vif->type, intf->mac, intf->bssid); | |
935 | ||
936 | ||
937 | /* | |
938 | * Master or Ad-hoc mode require a new beacon update. | |
939 | */ | |
05c914fe JB |
940 | if (vif->type == NL80211_IFTYPE_AP || |
941 | vif->type == NL80211_IFTYPE_ADHOC) | |
6bb40dd1 ID |
942 | intf->delayed_flags |= DELAYED_UPDATE_BEACON; |
943 | ||
944 | spin_unlock(&intf->lock); | |
945 | } | |
946 | ||
95ea3627 ID |
947 | int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev) |
948 | { | |
95ea3627 ID |
949 | int retval; |
950 | ||
951 | NOTICE(rt2x00dev, "Waking up.\n"); | |
95ea3627 ID |
952 | |
953 | /* | |
1682fe6d | 954 | * Restore/enable extra components. |
95ea3627 ID |
955 | */ |
956 | rt2x00debug_register(rt2x00dev); | |
a9450b70 | 957 | rt2x00leds_resume(rt2x00dev); |
95ea3627 | 958 | |
066cb637 | 959 | /* |
6d7f9877 | 960 | * Only continue if mac80211 had open interfaces. |
066cb637 | 961 | */ |
0262ab0d | 962 | if (!test_and_clear_bit(DEVICE_STATE_STARTED_SUSPEND, &rt2x00dev->flags)) |
066cb637 ID |
963 | return 0; |
964 | ||
95ea3627 ID |
965 | /* |
966 | * Reinitialize device and all active interfaces. | |
967 | */ | |
e37ea213 | 968 | retval = rt2x00lib_start(rt2x00dev); |
95ea3627 ID |
969 | if (retval) |
970 | goto exit; | |
971 | ||
972 | /* | |
973 | * Reconfigure device. | |
974 | */ | |
e8975581 | 975 | retval = rt2x00mac_config(rt2x00dev->hw, ~0); |
74c0ee9b ID |
976 | if (retval) |
977 | goto exit; | |
95ea3627 | 978 | |
6bb40dd1 ID |
979 | /* |
980 | * Iterator over each active interface to | |
981 | * reconfigure the hardware. | |
982 | */ | |
983 | ieee80211_iterate_active_interfaces(rt2x00dev->hw, | |
984 | rt2x00lib_resume_intf, rt2x00dev); | |
95ea3627 | 985 | |
e37ea213 ID |
986 | /* |
987 | * We are ready again to receive requests from mac80211. | |
988 | */ | |
0262ab0d | 989 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
e37ea213 | 990 | |
066cb637 ID |
991 | /* |
992 | * It is possible that during that mac80211 has attempted | |
993 | * to send frames while we were suspending or resuming. | |
994 | * In that case we have disabled the TX queue and should | |
995 | * now enable it again | |
996 | */ | |
36d6825b | 997 | ieee80211_wake_queues(rt2x00dev->hw); |
066cb637 | 998 | |
95ea3627 | 999 | /* |
6bb40dd1 ID |
1000 | * During interface iteration we might have changed the |
1001 | * delayed_flags, time to handles the event by calling | |
1002 | * the work handler directly. | |
95ea3627 | 1003 | */ |
6bb40dd1 | 1004 | rt2x00lib_intf_scheduled(&rt2x00dev->intf_work); |
95ea3627 | 1005 | |
95ea3627 ID |
1006 | return 0; |
1007 | ||
1008 | exit: | |
0262ab0d | 1009 | rt2x00lib_stop(rt2x00dev); |
95ea3627 ID |
1010 | rt2x00lib_uninitialize(rt2x00dev); |
1011 | rt2x00debug_deregister(rt2x00dev); | |
1012 | ||
95ea3627 ID |
1013 | return retval; |
1014 | } | |
1015 | EXPORT_SYMBOL_GPL(rt2x00lib_resume); | |
1016 | #endif /* CONFIG_PM */ | |
1017 | ||
1018 | /* | |
1019 | * rt2x00lib module information. | |
1020 | */ | |
1021 | MODULE_AUTHOR(DRV_PROJECT); | |
1022 | MODULE_VERSION(DRV_VERSION); | |
1023 | MODULE_DESCRIPTION("rt2x00 library"); | |
1024 | MODULE_LICENSE("GPL"); |