Commit | Line | Data |
---|---|---|
95ea3627 | 1 | /* |
4e54c711 | 2 | Copyright (C) 2004 - 2009 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 | 192 | if (vif->type != NL80211_IFTYPE_AP && |
a07dbea2 | 193 | vif->type != NL80211_IFTYPE_ADHOC && |
ce292a64 ID |
194 | vif->type != NL80211_IFTYPE_MESH_POINT && |
195 | vif->type != NL80211_IFTYPE_WDS) | |
95ea3627 ID |
196 | return; |
197 | ||
c95edf54 GW |
198 | /* |
199 | * Clean up the beacon skb. | |
200 | */ | |
c4da0048 | 201 | rt2x00queue_free_skb(rt2x00dev, intf->beacon->skb); |
c95edf54 GW |
202 | intf->beacon->skb = NULL; |
203 | ||
6bb40dd1 ID |
204 | spin_lock(&intf->lock); |
205 | intf->delayed_flags |= DELAYED_UPDATE_BEACON; | |
206 | spin_unlock(&intf->lock); | |
95ea3627 ID |
207 | } |
208 | ||
209 | void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev) | |
210 | { | |
0262ab0d | 211 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
212 | return; |
213 | ||
633257d3 ID |
214 | ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw, |
215 | rt2x00lib_beacondone_iter, | |
216 | rt2x00dev); | |
6bb40dd1 | 217 | |
8e260c22 | 218 | schedule_work(&rt2x00dev->intf_work); |
95ea3627 ID |
219 | } |
220 | EXPORT_SYMBOL_GPL(rt2x00lib_beacondone); | |
221 | ||
181d6902 ID |
222 | void rt2x00lib_txdone(struct queue_entry *entry, |
223 | struct txdone_entry_desc *txdesc) | |
95ea3627 | 224 | { |
181d6902 | 225 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; |
e039fa4a | 226 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); |
e6a9854b | 227 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
d74f5ba4 | 228 | enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); |
e6a9854b | 229 | u8 rate_idx, rate_flags; |
d74f5ba4 ID |
230 | |
231 | /* | |
232 | * Unmap the skb. | |
233 | */ | |
234 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
e039fa4a | 235 | |
2bb057d0 ID |
236 | /* |
237 | * If the IV/EIV data was stripped from the frame before it was | |
238 | * passed to the hardware, we should now reinsert it again because | |
239 | * mac80211 will expect the the same data to be present it the | |
240 | * frame as it was passed to us. | |
241 | */ | |
242 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) | |
243 | rt2x00crypto_tx_insert_iv(entry->skb); | |
244 | ||
e039fa4a JB |
245 | /* |
246 | * Send frame to debugfs immediately, after this call is completed | |
247 | * we are going to overwrite the skb->cb array. | |
248 | */ | |
249 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TXDONE, entry->skb); | |
95ea3627 ID |
250 | |
251 | /* | |
252 | * Update TX statistics. | |
253 | */ | |
fb55f4d1 ID |
254 | rt2x00dev->link.qual.tx_success += |
255 | test_bit(TXDONE_SUCCESS, &txdesc->flags); | |
256 | rt2x00dev->link.qual.tx_failed += | |
cb14cb79 | 257 | test_bit(TXDONE_FAILURE, &txdesc->flags); |
95ea3627 | 258 | |
e6a9854b JB |
259 | rate_idx = skbdesc->tx_rate_idx; |
260 | rate_flags = skbdesc->tx_rate_flags; | |
261 | ||
181d6902 ID |
262 | /* |
263 | * Initialize TX status | |
264 | */ | |
e039fa4a JB |
265 | memset(&tx_info->status, 0, sizeof(tx_info->status)); |
266 | tx_info->status.ack_signal = 0; | |
e6a9854b JB |
267 | tx_info->status.rates[0].idx = rate_idx; |
268 | tx_info->status.rates[0].flags = rate_flags; | |
269 | tx_info->status.rates[0].count = txdesc->retry + 1; | |
270 | tx_info->status.rates[1].idx = -1; /* terminate */ | |
181d6902 | 271 | |
e039fa4a | 272 | if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
fb55f4d1 | 273 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) |
e039fa4a | 274 | tx_info->flags |= IEEE80211_TX_STAT_ACK; |
fb55f4d1 | 275 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 276 | rt2x00dev->low_level_stats.dot11ACKFailureCount++; |
95ea3627 ID |
277 | } |
278 | ||
e6a9854b | 279 | if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
fb55f4d1 | 280 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) |
181d6902 | 281 | rt2x00dev->low_level_stats.dot11RTSSuccessCount++; |
fb55f4d1 | 282 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 283 | rt2x00dev->low_level_stats.dot11RTSFailureCount++; |
95ea3627 ID |
284 | } |
285 | ||
286 | /* | |
e039fa4a JB |
287 | * Only send the status report to mac80211 when TX status was |
288 | * requested by it. If this was a extra frame coming through | |
289 | * a mac80211 library call (RTS/CTS) then we should not send the | |
290 | * status report back. | |
95ea3627 | 291 | */ |
e039fa4a JB |
292 | if (tx_info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) |
293 | ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb); | |
baf26a7e | 294 | else |
fb55f4d1 | 295 | dev_kfree_skb_irq(entry->skb); |
d74f5ba4 ID |
296 | |
297 | /* | |
298 | * Make this entry available for reuse. | |
299 | */ | |
95ea3627 | 300 | entry->skb = NULL; |
d74f5ba4 ID |
301 | entry->flags = 0; |
302 | ||
798b7adb | 303 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 | 304 | |
0262ab0d | 305 | clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); |
d74f5ba4 ID |
306 | rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE); |
307 | ||
308 | /* | |
309 | * If the data queue was below the threshold before the txdone | |
310 | * handler we must make sure the packet queue in the mac80211 stack | |
311 | * is reenabled when the txdone handler has finished. | |
312 | */ | |
313 | if (!rt2x00queue_threshold(entry->queue)) | |
314 | ieee80211_wake_queue(rt2x00dev->hw, qid); | |
95ea3627 ID |
315 | } |
316 | EXPORT_SYMBOL_GPL(rt2x00lib_txdone); | |
317 | ||
c4da0048 GW |
318 | void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, |
319 | struct queue_entry *entry) | |
95ea3627 | 320 | { |
c4da0048 GW |
321 | struct rxdone_entry_desc rxdesc; |
322 | struct sk_buff *skb; | |
95ea3627 | 323 | struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status; |
8318d78a | 324 | struct ieee80211_supported_band *sband; |
70e2fed4 | 325 | const struct rt2x00_rate *rate; |
2bb057d0 | 326 | unsigned int header_length; |
239c249d | 327 | unsigned int align; |
95ea3627 | 328 | unsigned int i; |
70e2fed4 | 329 | int idx = -1; |
95ea3627 | 330 | |
c4da0048 GW |
331 | /* |
332 | * Allocate a new sk_buffer. If no new buffer available, drop the | |
333 | * received frame and reuse the existing buffer. | |
334 | */ | |
335 | skb = rt2x00queue_alloc_rxskb(rt2x00dev, entry); | |
336 | if (!skb) | |
337 | return; | |
338 | ||
339 | /* | |
340 | * Unmap the skb. | |
341 | */ | |
342 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
343 | ||
344 | /* | |
345 | * Extract the RXD details. | |
346 | */ | |
347 | memset(&rxdesc, 0, sizeof(rxdesc)); | |
348 | rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc); | |
95ea3627 | 349 | |
239c249d GW |
350 | /* |
351 | * The data behind the ieee80211 header must be | |
a9f853dd | 352 | * aligned on a 4 byte boundary. |
239c249d | 353 | */ |
2bb057d0 ID |
354 | header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
355 | align = ((unsigned long)(entry->skb->data + header_length)) & 3; | |
239c249d | 356 | |
2bb057d0 ID |
357 | /* |
358 | * Hardware might have stripped the IV/EIV/ICV data, | |
359 | * in that case it is possible that the data was | |
360 | * provided seperately (through hardware descriptor) | |
361 | * in which case we should reinsert the data into the frame. | |
362 | */ | |
74415edb ID |
363 | if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) && |
364 | (rxdesc.flags & RX_FLAG_IV_STRIPPED)) { | |
2bb057d0 ID |
365 | rt2x00crypto_rx_insert_iv(entry->skb, align, |
366 | header_length, &rxdesc); | |
367 | } else if (align) { | |
239c249d GW |
368 | skb_push(entry->skb, align); |
369 | /* Move entire frame in 1 command */ | |
370 | memmove(entry->skb->data, entry->skb->data + align, | |
c4da0048 | 371 | rxdesc.size); |
239c249d GW |
372 | } |
373 | ||
374 | /* Update data pointers, trim buffer to correct size */ | |
c4da0048 | 375 | skb_trim(entry->skb, rxdesc.size); |
239c249d | 376 | |
95ea3627 ID |
377 | /* |
378 | * Update RX statistics. | |
379 | */ | |
8318d78a JB |
380 | sband = &rt2x00dev->bands[rt2x00dev->curr_band]; |
381 | for (i = 0; i < sband->n_bitrates; i++) { | |
70e2fed4 | 382 | rate = rt2x00_get_rate(sband->bitrates[i].hw_value); |
95ea3627 | 383 | |
c4da0048 GW |
384 | if (((rxdesc.dev_flags & RXDONE_SIGNAL_PLCP) && |
385 | (rate->plcp == rxdesc.signal)) || | |
6c6aa3c0 | 386 | ((rxdesc.dev_flags & RXDONE_SIGNAL_BITRATE) && |
c4da0048 | 387 | (rate->bitrate == rxdesc.signal))) { |
8318d78a | 388 | idx = i; |
95ea3627 ID |
389 | break; |
390 | } | |
391 | } | |
392 | ||
866a0503 ID |
393 | if (idx < 0) { |
394 | WARNING(rt2x00dev, "Frame received with unrecognized signal," | |
b30dd5c0 ID |
395 | "signal=0x%.2x, type=%d.\n", rxdesc.signal, |
396 | (rxdesc.dev_flags & RXDONE_SIGNAL_MASK)); | |
866a0503 ID |
397 | idx = 0; |
398 | } | |
399 | ||
61af43c5 | 400 | /* |
84e3196f | 401 | * Update extra components |
61af43c5 | 402 | */ |
84e3196f ID |
403 | rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc); |
404 | rt2x00debug_update_crypto(rt2x00dev, &rxdesc); | |
69f81a2c | 405 | |
ae73e58e | 406 | rx_status->mactime = rxdesc.timestamp; |
8318d78a | 407 | rx_status->rate_idx = idx; |
84e3196f | 408 | rx_status->qual = rt2x00link_calculate_signal(rt2x00dev, rxdesc.rssi); |
c4da0048 | 409 | rx_status->signal = rxdesc.rssi; |
2bdb35c7 | 410 | rx_status->noise = rxdesc.noise; |
c4da0048 | 411 | rx_status->flag = rxdesc.flags; |
69f81a2c | 412 | rx_status->antenna = rt2x00dev->link.ant.active.rx; |
95ea3627 ID |
413 | |
414 | /* | |
181d6902 ID |
415 | * Send frame to mac80211 & debugfs. |
416 | * mac80211 will clean up the skb structure. | |
95ea3627 | 417 | */ |
5a6e5999 | 418 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb); |
181d6902 | 419 | ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb, rx_status); |
c4da0048 GW |
420 | |
421 | /* | |
422 | * Replace the skb with the freshly allocated one. | |
423 | */ | |
424 | entry->skb = skb; | |
d74f5ba4 ID |
425 | entry->flags = 0; |
426 | ||
798b7adb | 427 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 ID |
428 | |
429 | rt2x00queue_index_inc(entry->queue, Q_INDEX); | |
95ea3627 ID |
430 | } |
431 | EXPORT_SYMBOL_GPL(rt2x00lib_rxdone); | |
432 | ||
95ea3627 ID |
433 | /* |
434 | * Driver initialization handlers. | |
435 | */ | |
70e2fed4 ID |
436 | const struct rt2x00_rate rt2x00_supported_rates[12] = { |
437 | { | |
3d8606a6 | 438 | .flags = DEV_RATE_CCK, |
70e2fed4 | 439 | .bitrate = 10, |
aa776721 | 440 | .ratemask = BIT(0), |
70e2fed4 ID |
441 | .plcp = 0x00, |
442 | }, | |
443 | { | |
3d8606a6 | 444 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 445 | .bitrate = 20, |
aa776721 | 446 | .ratemask = BIT(1), |
70e2fed4 ID |
447 | .plcp = 0x01, |
448 | }, | |
449 | { | |
3d8606a6 | 450 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 451 | .bitrate = 55, |
aa776721 | 452 | .ratemask = BIT(2), |
70e2fed4 ID |
453 | .plcp = 0x02, |
454 | }, | |
455 | { | |
3d8606a6 | 456 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 457 | .bitrate = 110, |
aa776721 | 458 | .ratemask = BIT(3), |
70e2fed4 ID |
459 | .plcp = 0x03, |
460 | }, | |
461 | { | |
3d8606a6 | 462 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 463 | .bitrate = 60, |
aa776721 | 464 | .ratemask = BIT(4), |
70e2fed4 ID |
465 | .plcp = 0x0b, |
466 | }, | |
467 | { | |
468 | .flags = DEV_RATE_OFDM, | |
469 | .bitrate = 90, | |
aa776721 | 470 | .ratemask = BIT(5), |
70e2fed4 ID |
471 | .plcp = 0x0f, |
472 | }, | |
473 | { | |
3d8606a6 | 474 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 475 | .bitrate = 120, |
aa776721 | 476 | .ratemask = BIT(6), |
70e2fed4 ID |
477 | .plcp = 0x0a, |
478 | }, | |
479 | { | |
480 | .flags = DEV_RATE_OFDM, | |
481 | .bitrate = 180, | |
aa776721 | 482 | .ratemask = BIT(7), |
70e2fed4 ID |
483 | .plcp = 0x0e, |
484 | }, | |
485 | { | |
3d8606a6 | 486 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 487 | .bitrate = 240, |
aa776721 | 488 | .ratemask = BIT(8), |
70e2fed4 ID |
489 | .plcp = 0x09, |
490 | }, | |
491 | { | |
492 | .flags = DEV_RATE_OFDM, | |
493 | .bitrate = 360, | |
aa776721 | 494 | .ratemask = BIT(9), |
70e2fed4 ID |
495 | .plcp = 0x0d, |
496 | }, | |
497 | { | |
498 | .flags = DEV_RATE_OFDM, | |
499 | .bitrate = 480, | |
aa776721 | 500 | .ratemask = BIT(10), |
70e2fed4 ID |
501 | .plcp = 0x08, |
502 | }, | |
503 | { | |
504 | .flags = DEV_RATE_OFDM, | |
505 | .bitrate = 540, | |
aa776721 | 506 | .ratemask = BIT(11), |
70e2fed4 ID |
507 | .plcp = 0x0c, |
508 | }, | |
509 | }; | |
510 | ||
95ea3627 ID |
511 | static void rt2x00lib_channel(struct ieee80211_channel *entry, |
512 | const int channel, const int tx_power, | |
513 | const int value) | |
514 | { | |
f2a3c7f5 | 515 | entry->center_freq = ieee80211_channel_to_frequency(channel); |
8318d78a JB |
516 | entry->hw_value = value; |
517 | entry->max_power = tx_power; | |
518 | entry->max_antenna_gain = 0xff; | |
95ea3627 ID |
519 | } |
520 | ||
521 | static void rt2x00lib_rate(struct ieee80211_rate *entry, | |
70e2fed4 | 522 | const u16 index, const struct rt2x00_rate *rate) |
95ea3627 | 523 | { |
70e2fed4 ID |
524 | entry->flags = 0; |
525 | entry->bitrate = rate->bitrate; | |
3ea96463 ID |
526 | entry->hw_value =index; |
527 | entry->hw_value_short = index; | |
70e2fed4 | 528 | |
3ea96463 | 529 | if (rate->flags & DEV_RATE_SHORT_PREAMBLE) |
70e2fed4 | 530 | entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE; |
95ea3627 ID |
531 | } |
532 | ||
533 | static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev, | |
534 | struct hw_mode_spec *spec) | |
535 | { | |
536 | struct ieee80211_hw *hw = rt2x00dev->hw; | |
95ea3627 ID |
537 | struct ieee80211_channel *channels; |
538 | struct ieee80211_rate *rates; | |
31562e80 | 539 | unsigned int num_rates; |
95ea3627 | 540 | unsigned int i; |
95ea3627 | 541 | |
31562e80 ID |
542 | num_rates = 0; |
543 | if (spec->supported_rates & SUPPORT_RATE_CCK) | |
544 | num_rates += 4; | |
545 | if (spec->supported_rates & SUPPORT_RATE_OFDM) | |
546 | num_rates += 8; | |
95ea3627 ID |
547 | |
548 | channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL); | |
549 | if (!channels) | |
8318d78a | 550 | return -ENOMEM; |
95ea3627 | 551 | |
31562e80 | 552 | rates = kzalloc(sizeof(*rates) * num_rates, GFP_KERNEL); |
95ea3627 ID |
553 | if (!rates) |
554 | goto exit_free_channels; | |
555 | ||
556 | /* | |
557 | * Initialize Rate list. | |
558 | */ | |
31562e80 | 559 | for (i = 0; i < num_rates; i++) |
8f5fa7f0 | 560 | rt2x00lib_rate(&rates[i], i, rt2x00_get_rate(i)); |
95ea3627 ID |
561 | |
562 | /* | |
563 | * Initialize Channel list. | |
564 | */ | |
565 | for (i = 0; i < spec->num_channels; i++) { | |
95ea3627 | 566 | rt2x00lib_channel(&channels[i], |
8c5e7a5f ID |
567 | spec->channels[i].channel, |
568 | spec->channels_info[i].tx_power1, i); | |
95ea3627 ID |
569 | } |
570 | ||
571 | /* | |
31562e80 | 572 | * Intitialize 802.11b, 802.11g |
95ea3627 | 573 | * Rates: CCK, OFDM. |
8318d78a | 574 | * Channels: 2.4 GHz |
95ea3627 | 575 | */ |
47ac2683 | 576 | if (spec->supported_bands & SUPPORT_BAND_2GHZ) { |
31562e80 ID |
577 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_channels = 14; |
578 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_bitrates = num_rates; | |
579 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].channels = channels; | |
580 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates; | |
581 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
582 | &rt2x00dev->bands[IEEE80211_BAND_2GHZ]; | |
95ea3627 ID |
583 | } |
584 | ||
585 | /* | |
586 | * Intitialize 802.11a | |
587 | * Rates: OFDM. | |
588 | * Channels: OFDM, UNII, HiperLAN2. | |
589 | */ | |
47ac2683 | 590 | if (spec->supported_bands & SUPPORT_BAND_5GHZ) { |
31562e80 ID |
591 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_channels = |
592 | spec->num_channels - 14; | |
593 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_bitrates = | |
594 | num_rates - 4; | |
595 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].channels = &channels[14]; | |
596 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4]; | |
597 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
598 | &rt2x00dev->bands[IEEE80211_BAND_5GHZ]; | |
95ea3627 ID |
599 | } |
600 | ||
95ea3627 ID |
601 | return 0; |
602 | ||
8318d78a | 603 | exit_free_channels: |
95ea3627 | 604 | kfree(channels); |
95ea3627 ID |
605 | ERROR(rt2x00dev, "Allocation ieee80211 modes failed.\n"); |
606 | return -ENOMEM; | |
607 | } | |
608 | ||
609 | static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev) | |
610 | { | |
0262ab0d | 611 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
95ea3627 ID |
612 | ieee80211_unregister_hw(rt2x00dev->hw); |
613 | ||
8318d78a JB |
614 | if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) { |
615 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels); | |
616 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->bitrates); | |
617 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; | |
618 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; | |
95ea3627 | 619 | } |
8c5e7a5f ID |
620 | |
621 | kfree(rt2x00dev->spec.channels_info); | |
95ea3627 ID |
622 | } |
623 | ||
624 | static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) | |
625 | { | |
626 | struct hw_mode_spec *spec = &rt2x00dev->spec; | |
627 | int status; | |
628 | ||
0262ab0d ID |
629 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
630 | return 0; | |
631 | ||
95ea3627 ID |
632 | /* |
633 | * Initialize HW modes. | |
634 | */ | |
635 | status = rt2x00lib_probe_hw_modes(rt2x00dev, spec); | |
636 | if (status) | |
637 | return status; | |
638 | ||
61448f88 GW |
639 | /* |
640 | * Initialize HW fields. | |
641 | */ | |
642 | rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues; | |
643 | ||
95ea3627 ID |
644 | /* |
645 | * Register HW. | |
646 | */ | |
647 | status = ieee80211_register_hw(rt2x00dev->hw); | |
648 | if (status) { | |
649 | rt2x00lib_remove_hw(rt2x00dev); | |
650 | return status; | |
651 | } | |
652 | ||
0262ab0d | 653 | set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags); |
95ea3627 ID |
654 | |
655 | return 0; | |
656 | } | |
657 | ||
658 | /* | |
659 | * Initialization/uninitialization handlers. | |
660 | */ | |
e37ea213 | 661 | static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 | 662 | { |
0262ab0d | 663 | if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
664 | return; |
665 | ||
666 | /* | |
1682fe6d | 667 | * Unregister extra components. |
95ea3627 ID |
668 | */ |
669 | rt2x00rfkill_unregister(rt2x00dev); | |
670 | ||
671 | /* | |
672 | * Allow the HW to uninitialize. | |
673 | */ | |
674 | rt2x00dev->ops->lib->uninitialize(rt2x00dev); | |
675 | ||
676 | /* | |
181d6902 | 677 | * Free allocated queue entries. |
95ea3627 | 678 | */ |
181d6902 | 679 | rt2x00queue_uninitialize(rt2x00dev); |
95ea3627 ID |
680 | } |
681 | ||
e37ea213 | 682 | static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 ID |
683 | { |
684 | int status; | |
685 | ||
0262ab0d | 686 | if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
687 | return 0; |
688 | ||
689 | /* | |
181d6902 | 690 | * Allocate all queue entries. |
95ea3627 | 691 | */ |
181d6902 ID |
692 | status = rt2x00queue_initialize(rt2x00dev); |
693 | if (status) | |
95ea3627 | 694 | return status; |
95ea3627 ID |
695 | |
696 | /* | |
697 | * Initialize the device. | |
698 | */ | |
699 | status = rt2x00dev->ops->lib->initialize(rt2x00dev); | |
ed499983 ID |
700 | if (status) { |
701 | rt2x00queue_uninitialize(rt2x00dev); | |
702 | return status; | |
703 | } | |
95ea3627 | 704 | |
0262ab0d | 705 | set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags); |
95ea3627 ID |
706 | |
707 | /* | |
1682fe6d | 708 | * Register the extra components. |
95ea3627 | 709 | */ |
1682fe6d | 710 | rt2x00rfkill_register(rt2x00dev); |
95ea3627 ID |
711 | |
712 | return 0; | |
95ea3627 ID |
713 | } |
714 | ||
e37ea213 ID |
715 | int rt2x00lib_start(struct rt2x00_dev *rt2x00dev) |
716 | { | |
717 | int retval; | |
718 | ||
0262ab0d | 719 | if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
720 | return 0; |
721 | ||
722 | /* | |
723 | * If this is the first interface which is added, | |
724 | * we should load the firmware now. | |
725 | */ | |
9404ef34 ID |
726 | retval = rt2x00lib_load_firmware(rt2x00dev); |
727 | if (retval) | |
728 | return retval; | |
e37ea213 ID |
729 | |
730 | /* | |
731 | * Initialize the device. | |
732 | */ | |
733 | retval = rt2x00lib_initialize(rt2x00dev); | |
734 | if (retval) | |
735 | return retval; | |
736 | ||
6bb40dd1 ID |
737 | rt2x00dev->intf_ap_count = 0; |
738 | rt2x00dev->intf_sta_count = 0; | |
739 | rt2x00dev->intf_associated = 0; | |
740 | ||
0262ab0d | 741 | set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags); |
e37ea213 ID |
742 | |
743 | return 0; | |
744 | } | |
745 | ||
746 | void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev) | |
747 | { | |
0262ab0d | 748 | if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
749 | return; |
750 | ||
751 | /* | |
752 | * Perhaps we can add something smarter here, | |
753 | * but for now just disabling the radio should do. | |
754 | */ | |
755 | rt2x00lib_disable_radio(rt2x00dev); | |
756 | ||
6bb40dd1 ID |
757 | rt2x00dev->intf_ap_count = 0; |
758 | rt2x00dev->intf_sta_count = 0; | |
759 | rt2x00dev->intf_associated = 0; | |
e37ea213 ID |
760 | } |
761 | ||
95ea3627 ID |
762 | /* |
763 | * driver allocation handlers. | |
764 | */ | |
95ea3627 ID |
765 | int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) |
766 | { | |
767 | int retval = -ENOMEM; | |
768 | ||
8ff48a8b ID |
769 | mutex_init(&rt2x00dev->csr_mutex); |
770 | ||
6bb40dd1 ID |
771 | /* |
772 | * Make room for rt2x00_intf inside the per-interface | |
773 | * structure ieee80211_vif. | |
774 | */ | |
775 | rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf); | |
776 | ||
3514a441 ID |
777 | /* |
778 | * Determine which operating modes are supported, all modes | |
779 | * which require beaconing, depend on the availability of | |
780 | * beacon entries. | |
781 | */ | |
782 | rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
783 | if (rt2x00dev->ops->bcn->entry_num > 0) | |
784 | rt2x00dev->hw->wiphy->interface_modes |= | |
785 | BIT(NL80211_IFTYPE_ADHOC) | | |
a07dbea2 | 786 | BIT(NL80211_IFTYPE_AP) | |
ce292a64 ID |
787 | BIT(NL80211_IFTYPE_MESH_POINT) | |
788 | BIT(NL80211_IFTYPE_WDS); | |
f59ac048 | 789 | |
95ea3627 ID |
790 | /* |
791 | * Let the driver probe the device to detect the capabilities. | |
792 | */ | |
793 | retval = rt2x00dev->ops->lib->probe_hw(rt2x00dev); | |
794 | if (retval) { | |
795 | ERROR(rt2x00dev, "Failed to allocate device.\n"); | |
796 | goto exit; | |
797 | } | |
798 | ||
799 | /* | |
800 | * Initialize configuration work. | |
801 | */ | |
6bb40dd1 | 802 | INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled); |
4150c572 | 803 | INIT_WORK(&rt2x00dev->filter_work, rt2x00lib_packetfilter_scheduled); |
95ea3627 | 804 | |
95ea3627 | 805 | /* |
181d6902 | 806 | * Allocate queue array. |
95ea3627 | 807 | */ |
181d6902 | 808 | retval = rt2x00queue_allocate(rt2x00dev); |
95ea3627 ID |
809 | if (retval) |
810 | goto exit; | |
811 | ||
812 | /* | |
813 | * Initialize ieee80211 structure. | |
814 | */ | |
815 | retval = rt2x00lib_probe_hw(rt2x00dev); | |
816 | if (retval) { | |
817 | ERROR(rt2x00dev, "Failed to initialize hw.\n"); | |
818 | goto exit; | |
819 | } | |
820 | ||
a9450b70 | 821 | /* |
1682fe6d | 822 | * Register extra components. |
a9450b70 | 823 | */ |
84e3196f | 824 | rt2x00link_register(rt2x00dev); |
a9450b70 | 825 | rt2x00leds_register(rt2x00dev); |
1682fe6d | 826 | rt2x00rfkill_allocate(rt2x00dev); |
95ea3627 ID |
827 | rt2x00debug_register(rt2x00dev); |
828 | ||
0262ab0d | 829 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 830 | |
95ea3627 ID |
831 | return 0; |
832 | ||
833 | exit: | |
834 | rt2x00lib_remove_dev(rt2x00dev); | |
835 | ||
836 | return retval; | |
837 | } | |
838 | EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev); | |
839 | ||
840 | void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) | |
841 | { | |
0262ab0d | 842 | clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 843 | |
95ea3627 ID |
844 | /* |
845 | * Disable radio. | |
846 | */ | |
847 | rt2x00lib_disable_radio(rt2x00dev); | |
848 | ||
849 | /* | |
850 | * Uninitialize device. | |
851 | */ | |
852 | rt2x00lib_uninitialize(rt2x00dev); | |
853 | ||
854 | /* | |
1682fe6d | 855 | * Free extra components |
95ea3627 ID |
856 | */ |
857 | rt2x00debug_deregister(rt2x00dev); | |
95ea3627 | 858 | rt2x00rfkill_free(rt2x00dev); |
a9450b70 ID |
859 | rt2x00leds_unregister(rt2x00dev); |
860 | ||
95ea3627 ID |
861 | /* |
862 | * Free ieee80211_hw memory. | |
863 | */ | |
864 | rt2x00lib_remove_hw(rt2x00dev); | |
865 | ||
866 | /* | |
867 | * Free firmware image. | |
868 | */ | |
869 | rt2x00lib_free_firmware(rt2x00dev); | |
870 | ||
871 | /* | |
181d6902 | 872 | * Free queue structures. |
95ea3627 | 873 | */ |
181d6902 | 874 | rt2x00queue_free(rt2x00dev); |
95ea3627 ID |
875 | } |
876 | EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev); | |
877 | ||
878 | /* | |
879 | * Device state handlers | |
880 | */ | |
881 | #ifdef CONFIG_PM | |
882 | int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state) | |
883 | { | |
884 | int retval; | |
885 | ||
886 | NOTICE(rt2x00dev, "Going to sleep.\n"); | |
066cb637 ID |
887 | |
888 | /* | |
889 | * Only continue if mac80211 has open interfaces. | |
890 | */ | |
0262ab0d ID |
891 | if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) || |
892 | !test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) | |
066cb637 | 893 | goto exit; |
0262ab0d ID |
894 | |
895 | set_bit(DEVICE_STATE_STARTED_SUSPEND, &rt2x00dev->flags); | |
95ea3627 ID |
896 | |
897 | /* | |
1682fe6d | 898 | * Disable radio. |
95ea3627 | 899 | */ |
e37ea213 | 900 | rt2x00lib_stop(rt2x00dev); |
95ea3627 | 901 | rt2x00lib_uninitialize(rt2x00dev); |
1682fe6d ID |
902 | |
903 | /* | |
904 | * Suspend/disable extra components. | |
905 | */ | |
a9450b70 | 906 | rt2x00leds_suspend(rt2x00dev); |
95ea3627 ID |
907 | rt2x00debug_deregister(rt2x00dev); |
908 | ||
066cb637 | 909 | exit: |
95ea3627 | 910 | /* |
9896322a ID |
911 | * Set device mode to sleep for power management, |
912 | * on some hardware this call seems to consistently fail. | |
913 | * From the specifications it is hard to tell why it fails, | |
914 | * and if this is a "bad thing". | |
915 | * Overall it is safe to just ignore the failure and | |
916 | * continue suspending. The only downside is that the | |
917 | * device will not be in optimal power save mode, but with | |
918 | * the radio and the other components already disabled the | |
919 | * device is as good as disabled. | |
95ea3627 ID |
920 | */ |
921 | retval = rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP); | |
922 | if (retval) | |
9896322a ID |
923 | WARNING(rt2x00dev, "Device failed to enter sleep state, " |
924 | "continue suspending.\n"); | |
95ea3627 ID |
925 | |
926 | return 0; | |
927 | } | |
928 | EXPORT_SYMBOL_GPL(rt2x00lib_suspend); | |
929 | ||
6bb40dd1 ID |
930 | static void rt2x00lib_resume_intf(void *data, u8 *mac, |
931 | struct ieee80211_vif *vif) | |
932 | { | |
933 | struct rt2x00_dev *rt2x00dev = data; | |
934 | struct rt2x00_intf *intf = vif_to_intf(vif); | |
935 | ||
936 | spin_lock(&intf->lock); | |
937 | ||
938 | rt2x00lib_config_intf(rt2x00dev, intf, | |
939 | vif->type, intf->mac, intf->bssid); | |
940 | ||
941 | ||
942 | /* | |
a07dbea2 | 943 | * AP, Ad-hoc, and Mesh Point mode require a new beacon update. |
6bb40dd1 | 944 | */ |
05c914fe | 945 | if (vif->type == NL80211_IFTYPE_AP || |
a07dbea2 | 946 | vif->type == NL80211_IFTYPE_ADHOC || |
ce292a64 ID |
947 | vif->type == NL80211_IFTYPE_MESH_POINT || |
948 | vif->type == NL80211_IFTYPE_WDS) | |
6bb40dd1 ID |
949 | intf->delayed_flags |= DELAYED_UPDATE_BEACON; |
950 | ||
951 | spin_unlock(&intf->lock); | |
952 | } | |
953 | ||
95ea3627 ID |
954 | int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev) |
955 | { | |
95ea3627 ID |
956 | int retval; |
957 | ||
958 | NOTICE(rt2x00dev, "Waking up.\n"); | |
95ea3627 ID |
959 | |
960 | /* | |
1682fe6d | 961 | * Restore/enable extra components. |
95ea3627 ID |
962 | */ |
963 | rt2x00debug_register(rt2x00dev); | |
a9450b70 | 964 | rt2x00leds_resume(rt2x00dev); |
95ea3627 | 965 | |
066cb637 | 966 | /* |
6d7f9877 | 967 | * Only continue if mac80211 had open interfaces. |
066cb637 | 968 | */ |
0262ab0d | 969 | if (!test_and_clear_bit(DEVICE_STATE_STARTED_SUSPEND, &rt2x00dev->flags)) |
066cb637 ID |
970 | return 0; |
971 | ||
95ea3627 ID |
972 | /* |
973 | * Reinitialize device and all active interfaces. | |
974 | */ | |
e37ea213 | 975 | retval = rt2x00lib_start(rt2x00dev); |
95ea3627 ID |
976 | if (retval) |
977 | goto exit; | |
978 | ||
979 | /* | |
980 | * Reconfigure device. | |
981 | */ | |
e8975581 | 982 | retval = rt2x00mac_config(rt2x00dev->hw, ~0); |
74c0ee9b ID |
983 | if (retval) |
984 | goto exit; | |
95ea3627 | 985 | |
6bb40dd1 ID |
986 | /* |
987 | * Iterator over each active interface to | |
988 | * reconfigure the hardware. | |
989 | */ | |
990 | ieee80211_iterate_active_interfaces(rt2x00dev->hw, | |
991 | rt2x00lib_resume_intf, rt2x00dev); | |
95ea3627 | 992 | |
e37ea213 ID |
993 | /* |
994 | * We are ready again to receive requests from mac80211. | |
995 | */ | |
0262ab0d | 996 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
e37ea213 | 997 | |
066cb637 ID |
998 | /* |
999 | * It is possible that during that mac80211 has attempted | |
1000 | * to send frames while we were suspending or resuming. | |
1001 | * In that case we have disabled the TX queue and should | |
1002 | * now enable it again | |
1003 | */ | |
36d6825b | 1004 | ieee80211_wake_queues(rt2x00dev->hw); |
066cb637 | 1005 | |
95ea3627 | 1006 | /* |
6bb40dd1 ID |
1007 | * During interface iteration we might have changed the |
1008 | * delayed_flags, time to handles the event by calling | |
1009 | * the work handler directly. | |
95ea3627 | 1010 | */ |
6bb40dd1 | 1011 | rt2x00lib_intf_scheduled(&rt2x00dev->intf_work); |
95ea3627 | 1012 | |
95ea3627 ID |
1013 | return 0; |
1014 | ||
1015 | exit: | |
0262ab0d | 1016 | rt2x00lib_stop(rt2x00dev); |
95ea3627 ID |
1017 | rt2x00lib_uninitialize(rt2x00dev); |
1018 | rt2x00debug_deregister(rt2x00dev); | |
1019 | ||
95ea3627 ID |
1020 | return retval; |
1021 | } | |
1022 | EXPORT_SYMBOL_GPL(rt2x00lib_resume); | |
1023 | #endif /* CONFIG_PM */ | |
1024 | ||
1025 | /* | |
1026 | * rt2x00lib module information. | |
1027 | */ | |
1028 | MODULE_AUTHOR(DRV_PROJECT); | |
1029 | MODULE_VERSION(DRV_VERSION); | |
1030 | MODULE_DESCRIPTION("rt2x00 library"); | |
1031 | MODULE_LICENSE("GPL"); |