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 | 85 | /* |
a2c9b652 | 86 | * Stop the TX queues in mac80211. |
95ea3627 ID |
87 | */ |
88 | ieee80211_stop_queues(rt2x00dev->hw); | |
a2c9b652 | 89 | rt2x00queue_stop_queues(rt2x00dev); |
95ea3627 ID |
90 | |
91 | /* | |
92 | * Disable RX. | |
93 | */ | |
5cbf830e | 94 | rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF); |
95ea3627 ID |
95 | |
96 | /* | |
97 | * Disable radio. | |
98 | */ | |
99 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_OFF); | |
2b08da3f | 100 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF); |
61c2b682 | 101 | rt2x00led_led_activity(rt2x00dev, false); |
a2e1d52a | 102 | rt2x00leds_led_radio(rt2x00dev, false); |
95ea3627 ID |
103 | } |
104 | ||
5cbf830e | 105 | void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state) |
95ea3627 | 106 | { |
95ea3627 ID |
107 | /* |
108 | * When we are disabling the RX, we should also stop the link tuner. | |
109 | */ | |
5cbf830e | 110 | if (state == STATE_RADIO_RX_OFF) |
84e3196f | 111 | rt2x00link_stop_tuner(rt2x00dev); |
95ea3627 ID |
112 | |
113 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, state); | |
114 | ||
115 | /* | |
116 | * When we are enabling the RX, we should also start the link tuner. | |
117 | */ | |
84e3196f ID |
118 | if (state == STATE_RADIO_RX_ON) |
119 | rt2x00link_start_tuner(rt2x00dev); | |
95ea3627 ID |
120 | } |
121 | ||
4150c572 JB |
122 | static void rt2x00lib_packetfilter_scheduled(struct work_struct *work) |
123 | { | |
124 | struct rt2x00_dev *rt2x00dev = | |
125 | container_of(work, struct rt2x00_dev, filter_work); | |
5886d0db | 126 | |
133adf08 | 127 | rt2x00dev->ops->lib->config_filter(rt2x00dev, rt2x00dev->packet_filter); |
4150c572 JB |
128 | } |
129 | ||
6bb40dd1 ID |
130 | static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac, |
131 | struct ieee80211_vif *vif) | |
5c58ee51 | 132 | { |
6bb40dd1 ID |
133 | struct rt2x00_dev *rt2x00dev = data; |
134 | struct rt2x00_intf *intf = vif_to_intf(vif); | |
6bb40dd1 ID |
135 | struct ieee80211_bss_conf conf; |
136 | int delayed_flags; | |
137 | ||
138 | /* | |
139 | * Copy all data we need during this action under the protection | |
140 | * of a spinlock. Otherwise race conditions might occur which results | |
141 | * into an invalid configuration. | |
142 | */ | |
143 | spin_lock(&intf->lock); | |
144 | ||
c3fd7b41 | 145 | memcpy(&conf, &vif->bss_conf, sizeof(conf)); |
6bb40dd1 ID |
146 | delayed_flags = intf->delayed_flags; |
147 | intf->delayed_flags = 0; | |
148 | ||
149 | spin_unlock(&intf->lock); | |
150 | ||
980dfcb9 ID |
151 | /* |
152 | * It is possible the radio was disabled while the work had been | |
153 | * scheduled. If that happens we should return here immediately, | |
154 | * note that in the spinlock protected area above the delayed_flags | |
155 | * have been cleared correctly. | |
156 | */ | |
0262ab0d | 157 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
980dfcb9 ID |
158 | return; |
159 | ||
bd88a781 | 160 | if (delayed_flags & DELAYED_UPDATE_BEACON) |
a2c9b652 | 161 | rt2x00queue_update_beacon(rt2x00dev, vif, true); |
6bb40dd1 | 162 | |
72810379 | 163 | if (delayed_flags & DELAYED_CONFIG_ERP) |
980dfcb9 | 164 | rt2x00lib_config_erp(rt2x00dev, intf, &conf); |
a2e1d52a ID |
165 | |
166 | if (delayed_flags & DELAYED_LED_ASSOC) | |
167 | rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated); | |
6bb40dd1 | 168 | } |
5c58ee51 | 169 | |
6bb40dd1 ID |
170 | static void rt2x00lib_intf_scheduled(struct work_struct *work) |
171 | { | |
172 | struct rt2x00_dev *rt2x00dev = | |
173 | container_of(work, struct rt2x00_dev, intf_work); | |
471b3efd JB |
174 | |
175 | /* | |
6bb40dd1 ID |
176 | * Iterate over each interface and perform the |
177 | * requested configurations. | |
471b3efd | 178 | */ |
6bb40dd1 ID |
179 | ieee80211_iterate_active_interfaces(rt2x00dev->hw, |
180 | rt2x00lib_intf_scheduled_iter, | |
181 | rt2x00dev); | |
5c58ee51 ID |
182 | } |
183 | ||
95ea3627 ID |
184 | /* |
185 | * Interrupt context handlers. | |
186 | */ | |
6bb40dd1 ID |
187 | static void rt2x00lib_beacondone_iter(void *data, u8 *mac, |
188 | struct ieee80211_vif *vif) | |
95ea3627 | 189 | { |
c4da0048 | 190 | struct rt2x00_dev *rt2x00dev = data; |
6bb40dd1 | 191 | struct rt2x00_intf *intf = vif_to_intf(vif); |
95ea3627 | 192 | |
05c914fe | 193 | if (vif->type != NL80211_IFTYPE_AP && |
a07dbea2 | 194 | vif->type != NL80211_IFTYPE_ADHOC && |
ce292a64 ID |
195 | vif->type != NL80211_IFTYPE_MESH_POINT && |
196 | vif->type != NL80211_IFTYPE_WDS) | |
95ea3627 ID |
197 | return; |
198 | ||
c95edf54 GW |
199 | /* |
200 | * Clean up the beacon skb. | |
201 | */ | |
c4da0048 | 202 | rt2x00queue_free_skb(rt2x00dev, intf->beacon->skb); |
c95edf54 GW |
203 | intf->beacon->skb = NULL; |
204 | ||
6bb40dd1 ID |
205 | spin_lock(&intf->lock); |
206 | intf->delayed_flags |= DELAYED_UPDATE_BEACON; | |
207 | spin_unlock(&intf->lock); | |
95ea3627 ID |
208 | } |
209 | ||
210 | void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev) | |
211 | { | |
0262ab0d | 212 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
213 | return; |
214 | ||
633257d3 ID |
215 | ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw, |
216 | rt2x00lib_beacondone_iter, | |
217 | rt2x00dev); | |
6bb40dd1 | 218 | |
382fe0f2 | 219 | queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->intf_work); |
95ea3627 ID |
220 | } |
221 | EXPORT_SYMBOL_GPL(rt2x00lib_beacondone); | |
222 | ||
181d6902 ID |
223 | void rt2x00lib_txdone(struct queue_entry *entry, |
224 | struct txdone_entry_desc *txdesc) | |
95ea3627 | 225 | { |
181d6902 | 226 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; |
e039fa4a | 227 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); |
e6a9854b | 228 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
d74f5ba4 | 229 | enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); |
9f166171 | 230 | unsigned int header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
e6a9854b | 231 | u8 rate_idx, rate_flags; |
d74f5ba4 ID |
232 | |
233 | /* | |
234 | * Unmap the skb. | |
235 | */ | |
236 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
e039fa4a | 237 | |
9f166171 ID |
238 | /* |
239 | * Remove L2 padding which was added during | |
240 | */ | |
241 | if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags)) | |
242 | rt2x00queue_payload_align(entry->skb, true, header_length); | |
243 | ||
2bb057d0 ID |
244 | /* |
245 | * If the IV/EIV data was stripped from the frame before it was | |
246 | * passed to the hardware, we should now reinsert it again because | |
247 | * mac80211 will expect the the same data to be present it the | |
248 | * frame as it was passed to us. | |
249 | */ | |
250 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) | |
9f166171 | 251 | rt2x00crypto_tx_insert_iv(entry->skb, header_length); |
2bb057d0 | 252 | |
e039fa4a JB |
253 | /* |
254 | * Send frame to debugfs immediately, after this call is completed | |
255 | * we are going to overwrite the skb->cb array. | |
256 | */ | |
257 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TXDONE, entry->skb); | |
95ea3627 ID |
258 | |
259 | /* | |
260 | * Update TX statistics. | |
261 | */ | |
fb55f4d1 | 262 | rt2x00dev->link.qual.tx_success += |
ce4c45e0 AB |
263 | test_bit(TXDONE_SUCCESS, &txdesc->flags) || |
264 | test_bit(TXDONE_UNKNOWN, &txdesc->flags); | |
fb55f4d1 | 265 | rt2x00dev->link.qual.tx_failed += |
cb14cb79 | 266 | test_bit(TXDONE_FAILURE, &txdesc->flags); |
95ea3627 | 267 | |
e6a9854b JB |
268 | rate_idx = skbdesc->tx_rate_idx; |
269 | rate_flags = skbdesc->tx_rate_flags; | |
270 | ||
181d6902 ID |
271 | /* |
272 | * Initialize TX status | |
273 | */ | |
e039fa4a JB |
274 | memset(&tx_info->status, 0, sizeof(tx_info->status)); |
275 | tx_info->status.ack_signal = 0; | |
e6a9854b JB |
276 | tx_info->status.rates[0].idx = rate_idx; |
277 | tx_info->status.rates[0].flags = rate_flags; | |
278 | tx_info->status.rates[0].count = txdesc->retry + 1; | |
279 | tx_info->status.rates[1].idx = -1; /* terminate */ | |
181d6902 | 280 | |
e039fa4a | 281 | if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
ce4c45e0 AB |
282 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags) || |
283 | test_bit(TXDONE_UNKNOWN, &txdesc->flags)) | |
e039fa4a | 284 | tx_info->flags |= IEEE80211_TX_STAT_ACK; |
fb55f4d1 | 285 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 286 | rt2x00dev->low_level_stats.dot11ACKFailureCount++; |
95ea3627 ID |
287 | } |
288 | ||
e6a9854b | 289 | if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
ce4c45e0 AB |
290 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags) || |
291 | test_bit(TXDONE_UNKNOWN, &txdesc->flags)) | |
181d6902 | 292 | rt2x00dev->low_level_stats.dot11RTSSuccessCount++; |
fb55f4d1 | 293 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 294 | rt2x00dev->low_level_stats.dot11RTSFailureCount++; |
95ea3627 ID |
295 | } |
296 | ||
297 | /* | |
e039fa4a JB |
298 | * Only send the status report to mac80211 when TX status was |
299 | * requested by it. If this was a extra frame coming through | |
300 | * a mac80211 library call (RTS/CTS) then we should not send the | |
301 | * status report back. | |
95ea3627 | 302 | */ |
e039fa4a JB |
303 | if (tx_info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) |
304 | ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb); | |
baf26a7e | 305 | else |
fb55f4d1 | 306 | dev_kfree_skb_irq(entry->skb); |
d74f5ba4 ID |
307 | |
308 | /* | |
309 | * Make this entry available for reuse. | |
310 | */ | |
95ea3627 | 311 | entry->skb = NULL; |
d74f5ba4 ID |
312 | entry->flags = 0; |
313 | ||
798b7adb | 314 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 | 315 | |
0262ab0d | 316 | clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); |
d74f5ba4 ID |
317 | rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE); |
318 | ||
319 | /* | |
320 | * If the data queue was below the threshold before the txdone | |
321 | * handler we must make sure the packet queue in the mac80211 stack | |
322 | * is reenabled when the txdone handler has finished. | |
323 | */ | |
324 | if (!rt2x00queue_threshold(entry->queue)) | |
325 | ieee80211_wake_queue(rt2x00dev->hw, qid); | |
95ea3627 ID |
326 | } |
327 | EXPORT_SYMBOL_GPL(rt2x00lib_txdone); | |
328 | ||
35f00cfc ID |
329 | static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev, |
330 | struct rxdone_entry_desc *rxdesc) | |
331 | { | |
332 | struct ieee80211_supported_band *sband; | |
333 | const struct rt2x00_rate *rate; | |
334 | unsigned int i; | |
335 | int signal; | |
336 | int type; | |
337 | ||
338 | /* | |
339 | * For non-HT rates the MCS value needs to contain the | |
340 | * actually used rate modulation (CCK or OFDM). | |
341 | */ | |
342 | if (rxdesc->dev_flags & RXDONE_SIGNAL_MCS) | |
343 | signal = RATE_MCS(rxdesc->rate_mode, rxdesc->signal); | |
344 | else | |
345 | signal = rxdesc->signal; | |
346 | ||
347 | type = (rxdesc->dev_flags & RXDONE_SIGNAL_MASK); | |
348 | ||
349 | sband = &rt2x00dev->bands[rt2x00dev->curr_band]; | |
350 | for (i = 0; i < sband->n_bitrates; i++) { | |
351 | rate = rt2x00_get_rate(sband->bitrates[i].hw_value); | |
352 | ||
353 | if (((type == RXDONE_SIGNAL_PLCP) && | |
354 | (rate->plcp == signal)) || | |
355 | ((type == RXDONE_SIGNAL_BITRATE) && | |
356 | (rate->bitrate == signal)) || | |
357 | ((type == RXDONE_SIGNAL_MCS) && | |
358 | (rate->mcs == signal))) { | |
359 | return i; | |
360 | } | |
361 | } | |
362 | ||
363 | WARNING(rt2x00dev, "Frame received with unrecognized signal, " | |
364 | "signal=0x%.4x, type=%d.\n", signal, type); | |
365 | return 0; | |
366 | } | |
367 | ||
c4da0048 GW |
368 | void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, |
369 | struct queue_entry *entry) | |
95ea3627 | 370 | { |
c4da0048 GW |
371 | struct rxdone_entry_desc rxdesc; |
372 | struct sk_buff *skb; | |
95ea3627 | 373 | struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status; |
2bb057d0 | 374 | unsigned int header_length; |
9f166171 | 375 | bool l2pad; |
35f00cfc | 376 | int rate_idx; |
c4da0048 GW |
377 | /* |
378 | * Allocate a new sk_buffer. If no new buffer available, drop the | |
379 | * received frame and reuse the existing buffer. | |
380 | */ | |
381 | skb = rt2x00queue_alloc_rxskb(rt2x00dev, entry); | |
382 | if (!skb) | |
383 | return; | |
384 | ||
385 | /* | |
386 | * Unmap the skb. | |
387 | */ | |
388 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
389 | ||
390 | /* | |
391 | * Extract the RXD details. | |
392 | */ | |
393 | memset(&rxdesc, 0, sizeof(rxdesc)); | |
394 | rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc); | |
95ea3627 | 395 | |
9f166171 ID |
396 | /* Trim buffer to correct size */ |
397 | skb_trim(entry->skb, rxdesc.size); | |
398 | ||
239c249d GW |
399 | /* |
400 | * The data behind the ieee80211 header must be | |
a9f853dd | 401 | * aligned on a 4 byte boundary. |
239c249d | 402 | */ |
2bb057d0 | 403 | header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
9f166171 | 404 | l2pad = !!(rxdesc.dev_flags & RXDONE_L2PAD); |
239c249d | 405 | |
2bb057d0 ID |
406 | /* |
407 | * Hardware might have stripped the IV/EIV/ICV data, | |
408 | * in that case it is possible that the data was | |
409 | * provided seperately (through hardware descriptor) | |
410 | * in which case we should reinsert the data into the frame. | |
411 | */ | |
74415edb | 412 | if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) && |
9f166171 ID |
413 | (rxdesc.flags & RX_FLAG_IV_STRIPPED)) |
414 | rt2x00crypto_rx_insert_iv(entry->skb, l2pad, header_length, | |
415 | &rxdesc); | |
416 | else | |
417 | rt2x00queue_payload_align(entry->skb, l2pad, header_length); | |
239c249d | 418 | |
95ea3627 | 419 | /* |
35f00cfc ID |
420 | * Check if the frame was received using HT. In that case, |
421 | * the rate is the MCS index and should be passed to mac80211 | |
422 | * directly. Otherwise we need to translate the signal to | |
423 | * the correct bitrate index. | |
95ea3627 | 424 | */ |
35f00cfc ID |
425 | if (rxdesc.rate_mode == RATE_MODE_CCK || |
426 | rxdesc.rate_mode == RATE_MODE_OFDM) { | |
427 | rate_idx = rt2x00lib_rxdone_read_signal(rt2x00dev, &rxdesc); | |
428 | } else { | |
429 | rxdesc.flags |= RX_FLAG_HT; | |
430 | rate_idx = rxdesc.signal; | |
866a0503 ID |
431 | } |
432 | ||
61af43c5 | 433 | /* |
84e3196f | 434 | * Update extra components |
61af43c5 | 435 | */ |
84e3196f ID |
436 | rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc); |
437 | rt2x00debug_update_crypto(rt2x00dev, &rxdesc); | |
69f81a2c | 438 | |
ae73e58e | 439 | rx_status->mactime = rxdesc.timestamp; |
35f00cfc | 440 | rx_status->rate_idx = rate_idx; |
84e3196f | 441 | rx_status->qual = rt2x00link_calculate_signal(rt2x00dev, rxdesc.rssi); |
c4da0048 | 442 | rx_status->signal = rxdesc.rssi; |
2bdb35c7 | 443 | rx_status->noise = rxdesc.noise; |
c4da0048 | 444 | rx_status->flag = rxdesc.flags; |
69f81a2c | 445 | rx_status->antenna = rt2x00dev->link.ant.active.rx; |
95ea3627 ID |
446 | |
447 | /* | |
181d6902 ID |
448 | * Send frame to mac80211 & debugfs. |
449 | * mac80211 will clean up the skb structure. | |
95ea3627 | 450 | */ |
5a6e5999 | 451 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb); |
f1d58c25 JB |
452 | memcpy(IEEE80211_SKB_RXCB(entry->skb), rx_status, sizeof(*rx_status)); |
453 | ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb); | |
c4da0048 GW |
454 | |
455 | /* | |
456 | * Replace the skb with the freshly allocated one. | |
457 | */ | |
458 | entry->skb = skb; | |
d74f5ba4 ID |
459 | entry->flags = 0; |
460 | ||
798b7adb | 461 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 ID |
462 | |
463 | rt2x00queue_index_inc(entry->queue, Q_INDEX); | |
95ea3627 ID |
464 | } |
465 | EXPORT_SYMBOL_GPL(rt2x00lib_rxdone); | |
466 | ||
95ea3627 ID |
467 | /* |
468 | * Driver initialization handlers. | |
469 | */ | |
70e2fed4 ID |
470 | const struct rt2x00_rate rt2x00_supported_rates[12] = { |
471 | { | |
3d8606a6 | 472 | .flags = DEV_RATE_CCK, |
70e2fed4 | 473 | .bitrate = 10, |
aa776721 | 474 | .ratemask = BIT(0), |
70e2fed4 | 475 | .plcp = 0x00, |
35f00cfc | 476 | .mcs = RATE_MCS(RATE_MODE_CCK, 0), |
70e2fed4 ID |
477 | }, |
478 | { | |
3d8606a6 | 479 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 480 | .bitrate = 20, |
aa776721 | 481 | .ratemask = BIT(1), |
70e2fed4 | 482 | .plcp = 0x01, |
35f00cfc | 483 | .mcs = RATE_MCS(RATE_MODE_CCK, 1), |
70e2fed4 ID |
484 | }, |
485 | { | |
3d8606a6 | 486 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 487 | .bitrate = 55, |
aa776721 | 488 | .ratemask = BIT(2), |
70e2fed4 | 489 | .plcp = 0x02, |
35f00cfc | 490 | .mcs = RATE_MCS(RATE_MODE_CCK, 2), |
70e2fed4 ID |
491 | }, |
492 | { | |
3d8606a6 | 493 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 494 | .bitrate = 110, |
aa776721 | 495 | .ratemask = BIT(3), |
70e2fed4 | 496 | .plcp = 0x03, |
35f00cfc | 497 | .mcs = RATE_MCS(RATE_MODE_CCK, 3), |
70e2fed4 ID |
498 | }, |
499 | { | |
3d8606a6 | 500 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 501 | .bitrate = 60, |
aa776721 | 502 | .ratemask = BIT(4), |
70e2fed4 | 503 | .plcp = 0x0b, |
35f00cfc | 504 | .mcs = RATE_MCS(RATE_MODE_OFDM, 0), |
70e2fed4 ID |
505 | }, |
506 | { | |
507 | .flags = DEV_RATE_OFDM, | |
508 | .bitrate = 90, | |
aa776721 | 509 | .ratemask = BIT(5), |
70e2fed4 | 510 | .plcp = 0x0f, |
35f00cfc | 511 | .mcs = RATE_MCS(RATE_MODE_OFDM, 1), |
70e2fed4 ID |
512 | }, |
513 | { | |
3d8606a6 | 514 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 515 | .bitrate = 120, |
aa776721 | 516 | .ratemask = BIT(6), |
70e2fed4 | 517 | .plcp = 0x0a, |
35f00cfc | 518 | .mcs = RATE_MCS(RATE_MODE_OFDM, 2), |
70e2fed4 ID |
519 | }, |
520 | { | |
521 | .flags = DEV_RATE_OFDM, | |
522 | .bitrate = 180, | |
aa776721 | 523 | .ratemask = BIT(7), |
70e2fed4 | 524 | .plcp = 0x0e, |
35f00cfc | 525 | .mcs = RATE_MCS(RATE_MODE_OFDM, 3), |
70e2fed4 ID |
526 | }, |
527 | { | |
3d8606a6 | 528 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 529 | .bitrate = 240, |
aa776721 | 530 | .ratemask = BIT(8), |
70e2fed4 | 531 | .plcp = 0x09, |
35f00cfc | 532 | .mcs = RATE_MCS(RATE_MODE_OFDM, 4), |
70e2fed4 ID |
533 | }, |
534 | { | |
535 | .flags = DEV_RATE_OFDM, | |
536 | .bitrate = 360, | |
aa776721 | 537 | .ratemask = BIT(9), |
70e2fed4 | 538 | .plcp = 0x0d, |
35f00cfc | 539 | .mcs = RATE_MCS(RATE_MODE_OFDM, 5), |
70e2fed4 ID |
540 | }, |
541 | { | |
542 | .flags = DEV_RATE_OFDM, | |
543 | .bitrate = 480, | |
aa776721 | 544 | .ratemask = BIT(10), |
70e2fed4 | 545 | .plcp = 0x08, |
35f00cfc | 546 | .mcs = RATE_MCS(RATE_MODE_OFDM, 6), |
70e2fed4 ID |
547 | }, |
548 | { | |
549 | .flags = DEV_RATE_OFDM, | |
550 | .bitrate = 540, | |
aa776721 | 551 | .ratemask = BIT(11), |
70e2fed4 | 552 | .plcp = 0x0c, |
35f00cfc | 553 | .mcs = RATE_MCS(RATE_MODE_OFDM, 7), |
70e2fed4 ID |
554 | }, |
555 | }; | |
556 | ||
95ea3627 ID |
557 | static void rt2x00lib_channel(struct ieee80211_channel *entry, |
558 | const int channel, const int tx_power, | |
559 | const int value) | |
560 | { | |
f2a3c7f5 | 561 | entry->center_freq = ieee80211_channel_to_frequency(channel); |
8318d78a JB |
562 | entry->hw_value = value; |
563 | entry->max_power = tx_power; | |
564 | entry->max_antenna_gain = 0xff; | |
95ea3627 ID |
565 | } |
566 | ||
567 | static void rt2x00lib_rate(struct ieee80211_rate *entry, | |
70e2fed4 | 568 | const u16 index, const struct rt2x00_rate *rate) |
95ea3627 | 569 | { |
70e2fed4 ID |
570 | entry->flags = 0; |
571 | entry->bitrate = rate->bitrate; | |
3ea96463 ID |
572 | entry->hw_value =index; |
573 | entry->hw_value_short = index; | |
70e2fed4 | 574 | |
3ea96463 | 575 | if (rate->flags & DEV_RATE_SHORT_PREAMBLE) |
70e2fed4 | 576 | entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE; |
95ea3627 ID |
577 | } |
578 | ||
579 | static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev, | |
580 | struct hw_mode_spec *spec) | |
581 | { | |
582 | struct ieee80211_hw *hw = rt2x00dev->hw; | |
95ea3627 ID |
583 | struct ieee80211_channel *channels; |
584 | struct ieee80211_rate *rates; | |
31562e80 | 585 | unsigned int num_rates; |
95ea3627 | 586 | unsigned int i; |
95ea3627 | 587 | |
31562e80 ID |
588 | num_rates = 0; |
589 | if (spec->supported_rates & SUPPORT_RATE_CCK) | |
590 | num_rates += 4; | |
591 | if (spec->supported_rates & SUPPORT_RATE_OFDM) | |
592 | num_rates += 8; | |
95ea3627 ID |
593 | |
594 | channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL); | |
595 | if (!channels) | |
8318d78a | 596 | return -ENOMEM; |
95ea3627 | 597 | |
31562e80 | 598 | rates = kzalloc(sizeof(*rates) * num_rates, GFP_KERNEL); |
95ea3627 ID |
599 | if (!rates) |
600 | goto exit_free_channels; | |
601 | ||
602 | /* | |
603 | * Initialize Rate list. | |
604 | */ | |
31562e80 | 605 | for (i = 0; i < num_rates; i++) |
8f5fa7f0 | 606 | rt2x00lib_rate(&rates[i], i, rt2x00_get_rate(i)); |
95ea3627 ID |
607 | |
608 | /* | |
609 | * Initialize Channel list. | |
610 | */ | |
611 | for (i = 0; i < spec->num_channels; i++) { | |
95ea3627 | 612 | rt2x00lib_channel(&channels[i], |
8c5e7a5f ID |
613 | spec->channels[i].channel, |
614 | spec->channels_info[i].tx_power1, i); | |
95ea3627 ID |
615 | } |
616 | ||
617 | /* | |
31562e80 | 618 | * Intitialize 802.11b, 802.11g |
95ea3627 | 619 | * Rates: CCK, OFDM. |
8318d78a | 620 | * Channels: 2.4 GHz |
95ea3627 | 621 | */ |
47ac2683 | 622 | if (spec->supported_bands & SUPPORT_BAND_2GHZ) { |
31562e80 ID |
623 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_channels = 14; |
624 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_bitrates = num_rates; | |
625 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].channels = channels; | |
626 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates; | |
627 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
628 | &rt2x00dev->bands[IEEE80211_BAND_2GHZ]; | |
35f00cfc ID |
629 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_2GHZ].ht_cap, |
630 | &spec->ht, sizeof(spec->ht)); | |
95ea3627 ID |
631 | } |
632 | ||
633 | /* | |
634 | * Intitialize 802.11a | |
635 | * Rates: OFDM. | |
636 | * Channels: OFDM, UNII, HiperLAN2. | |
637 | */ | |
47ac2683 | 638 | if (spec->supported_bands & SUPPORT_BAND_5GHZ) { |
31562e80 ID |
639 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_channels = |
640 | spec->num_channels - 14; | |
641 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_bitrates = | |
642 | num_rates - 4; | |
643 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].channels = &channels[14]; | |
644 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4]; | |
645 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
646 | &rt2x00dev->bands[IEEE80211_BAND_5GHZ]; | |
35f00cfc ID |
647 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_5GHZ].ht_cap, |
648 | &spec->ht, sizeof(spec->ht)); | |
95ea3627 ID |
649 | } |
650 | ||
95ea3627 ID |
651 | return 0; |
652 | ||
8318d78a | 653 | exit_free_channels: |
95ea3627 | 654 | kfree(channels); |
95ea3627 ID |
655 | ERROR(rt2x00dev, "Allocation ieee80211 modes failed.\n"); |
656 | return -ENOMEM; | |
657 | } | |
658 | ||
659 | static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev) | |
660 | { | |
0262ab0d | 661 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
95ea3627 ID |
662 | ieee80211_unregister_hw(rt2x00dev->hw); |
663 | ||
8318d78a JB |
664 | if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) { |
665 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels); | |
666 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->bitrates); | |
667 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; | |
668 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; | |
95ea3627 | 669 | } |
8c5e7a5f ID |
670 | |
671 | kfree(rt2x00dev->spec.channels_info); | |
95ea3627 ID |
672 | } |
673 | ||
674 | static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) | |
675 | { | |
676 | struct hw_mode_spec *spec = &rt2x00dev->spec; | |
677 | int status; | |
678 | ||
0262ab0d ID |
679 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
680 | return 0; | |
681 | ||
95ea3627 ID |
682 | /* |
683 | * Initialize HW modes. | |
684 | */ | |
685 | status = rt2x00lib_probe_hw_modes(rt2x00dev, spec); | |
686 | if (status) | |
687 | return status; | |
688 | ||
61448f88 GW |
689 | /* |
690 | * Initialize HW fields. | |
691 | */ | |
692 | rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues; | |
693 | ||
95ea3627 ID |
694 | /* |
695 | * Register HW. | |
696 | */ | |
697 | status = ieee80211_register_hw(rt2x00dev->hw); | |
f05faa31 | 698 | if (status) |
95ea3627 | 699 | return status; |
95ea3627 | 700 | |
0262ab0d | 701 | set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags); |
95ea3627 ID |
702 | |
703 | return 0; | |
704 | } | |
705 | ||
706 | /* | |
707 | * Initialization/uninitialization handlers. | |
708 | */ | |
e37ea213 | 709 | static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 | 710 | { |
0262ab0d | 711 | if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
712 | return; |
713 | ||
714 | /* | |
1682fe6d | 715 | * Unregister extra components. |
95ea3627 ID |
716 | */ |
717 | rt2x00rfkill_unregister(rt2x00dev); | |
718 | ||
719 | /* | |
720 | * Allow the HW to uninitialize. | |
721 | */ | |
722 | rt2x00dev->ops->lib->uninitialize(rt2x00dev); | |
723 | ||
724 | /* | |
181d6902 | 725 | * Free allocated queue entries. |
95ea3627 | 726 | */ |
181d6902 | 727 | rt2x00queue_uninitialize(rt2x00dev); |
95ea3627 ID |
728 | } |
729 | ||
e37ea213 | 730 | static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 ID |
731 | { |
732 | int status; | |
733 | ||
0262ab0d | 734 | if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
735 | return 0; |
736 | ||
737 | /* | |
181d6902 | 738 | * Allocate all queue entries. |
95ea3627 | 739 | */ |
181d6902 ID |
740 | status = rt2x00queue_initialize(rt2x00dev); |
741 | if (status) | |
95ea3627 | 742 | return status; |
95ea3627 ID |
743 | |
744 | /* | |
745 | * Initialize the device. | |
746 | */ | |
747 | status = rt2x00dev->ops->lib->initialize(rt2x00dev); | |
ed499983 ID |
748 | if (status) { |
749 | rt2x00queue_uninitialize(rt2x00dev); | |
750 | return status; | |
751 | } | |
95ea3627 | 752 | |
0262ab0d | 753 | set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags); |
95ea3627 ID |
754 | |
755 | /* | |
1682fe6d | 756 | * Register the extra components. |
95ea3627 | 757 | */ |
1682fe6d | 758 | rt2x00rfkill_register(rt2x00dev); |
95ea3627 ID |
759 | |
760 | return 0; | |
95ea3627 ID |
761 | } |
762 | ||
e37ea213 ID |
763 | int rt2x00lib_start(struct rt2x00_dev *rt2x00dev) |
764 | { | |
765 | int retval; | |
766 | ||
0262ab0d | 767 | if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
768 | return 0; |
769 | ||
770 | /* | |
771 | * If this is the first interface which is added, | |
772 | * we should load the firmware now. | |
773 | */ | |
9404ef34 ID |
774 | retval = rt2x00lib_load_firmware(rt2x00dev); |
775 | if (retval) | |
776 | return retval; | |
e37ea213 ID |
777 | |
778 | /* | |
779 | * Initialize the device. | |
780 | */ | |
781 | retval = rt2x00lib_initialize(rt2x00dev); | |
782 | if (retval) | |
783 | return retval; | |
784 | ||
6bb40dd1 ID |
785 | rt2x00dev->intf_ap_count = 0; |
786 | rt2x00dev->intf_sta_count = 0; | |
787 | rt2x00dev->intf_associated = 0; | |
788 | ||
0262ab0d | 789 | set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags); |
e37ea213 ID |
790 | |
791 | return 0; | |
792 | } | |
793 | ||
794 | void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev) | |
795 | { | |
0262ab0d | 796 | if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
797 | return; |
798 | ||
799 | /* | |
800 | * Perhaps we can add something smarter here, | |
801 | * but for now just disabling the radio should do. | |
802 | */ | |
803 | rt2x00lib_disable_radio(rt2x00dev); | |
804 | ||
6bb40dd1 ID |
805 | rt2x00dev->intf_ap_count = 0; |
806 | rt2x00dev->intf_sta_count = 0; | |
807 | rt2x00dev->intf_associated = 0; | |
e37ea213 ID |
808 | } |
809 | ||
95ea3627 ID |
810 | /* |
811 | * driver allocation handlers. | |
812 | */ | |
95ea3627 ID |
813 | int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) |
814 | { | |
815 | int retval = -ENOMEM; | |
816 | ||
8ff48a8b ID |
817 | mutex_init(&rt2x00dev->csr_mutex); |
818 | ||
6bb40dd1 ID |
819 | /* |
820 | * Make room for rt2x00_intf inside the per-interface | |
821 | * structure ieee80211_vif. | |
822 | */ | |
823 | rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf); | |
824 | ||
3514a441 ID |
825 | /* |
826 | * Determine which operating modes are supported, all modes | |
827 | * which require beaconing, depend on the availability of | |
828 | * beacon entries. | |
829 | */ | |
830 | rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
831 | if (rt2x00dev->ops->bcn->entry_num > 0) | |
832 | rt2x00dev->hw->wiphy->interface_modes |= | |
833 | BIT(NL80211_IFTYPE_ADHOC) | | |
a07dbea2 | 834 | BIT(NL80211_IFTYPE_AP) | |
ce292a64 ID |
835 | BIT(NL80211_IFTYPE_MESH_POINT) | |
836 | BIT(NL80211_IFTYPE_WDS); | |
f59ac048 | 837 | |
95ea3627 ID |
838 | /* |
839 | * Let the driver probe the device to detect the capabilities. | |
840 | */ | |
841 | retval = rt2x00dev->ops->lib->probe_hw(rt2x00dev); | |
842 | if (retval) { | |
843 | ERROR(rt2x00dev, "Failed to allocate device.\n"); | |
844 | goto exit; | |
845 | } | |
846 | ||
847 | /* | |
848 | * Initialize configuration work. | |
849 | */ | |
6bb40dd1 | 850 | INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled); |
4150c572 | 851 | INIT_WORK(&rt2x00dev->filter_work, rt2x00lib_packetfilter_scheduled); |
95ea3627 | 852 | |
95ea3627 | 853 | /* |
181d6902 | 854 | * Allocate queue array. |
95ea3627 | 855 | */ |
181d6902 | 856 | retval = rt2x00queue_allocate(rt2x00dev); |
95ea3627 ID |
857 | if (retval) |
858 | goto exit; | |
859 | ||
860 | /* | |
861 | * Initialize ieee80211 structure. | |
862 | */ | |
863 | retval = rt2x00lib_probe_hw(rt2x00dev); | |
864 | if (retval) { | |
865 | ERROR(rt2x00dev, "Failed to initialize hw.\n"); | |
866 | goto exit; | |
867 | } | |
868 | ||
a9450b70 | 869 | /* |
1682fe6d | 870 | * Register extra components. |
a9450b70 | 871 | */ |
84e3196f | 872 | rt2x00link_register(rt2x00dev); |
a9450b70 | 873 | rt2x00leds_register(rt2x00dev); |
95ea3627 ID |
874 | rt2x00debug_register(rt2x00dev); |
875 | ||
0262ab0d | 876 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 877 | |
95ea3627 ID |
878 | return 0; |
879 | ||
880 | exit: | |
881 | rt2x00lib_remove_dev(rt2x00dev); | |
882 | ||
883 | return retval; | |
884 | } | |
885 | EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev); | |
886 | ||
887 | void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) | |
888 | { | |
0262ab0d | 889 | clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 890 | |
95ea3627 ID |
891 | /* |
892 | * Disable radio. | |
893 | */ | |
894 | rt2x00lib_disable_radio(rt2x00dev); | |
895 | ||
896 | /* | |
897 | * Uninitialize device. | |
898 | */ | |
899 | rt2x00lib_uninitialize(rt2x00dev); | |
900 | ||
901 | /* | |
1682fe6d | 902 | * Free extra components |
95ea3627 ID |
903 | */ |
904 | rt2x00debug_deregister(rt2x00dev); | |
a9450b70 ID |
905 | rt2x00leds_unregister(rt2x00dev); |
906 | ||
95ea3627 ID |
907 | /* |
908 | * Free ieee80211_hw memory. | |
909 | */ | |
910 | rt2x00lib_remove_hw(rt2x00dev); | |
911 | ||
912 | /* | |
913 | * Free firmware image. | |
914 | */ | |
915 | rt2x00lib_free_firmware(rt2x00dev); | |
916 | ||
917 | /* | |
181d6902 | 918 | * Free queue structures. |
95ea3627 | 919 | */ |
181d6902 | 920 | rt2x00queue_free(rt2x00dev); |
95ea3627 ID |
921 | } |
922 | EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev); | |
923 | ||
924 | /* | |
925 | * Device state handlers | |
926 | */ | |
927 | #ifdef CONFIG_PM | |
928 | int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state) | |
929 | { | |
95ea3627 | 930 | NOTICE(rt2x00dev, "Going to sleep.\n"); |
066cb637 ID |
931 | |
932 | /* | |
07126127 | 933 | * Prevent mac80211 from accessing driver while suspended. |
066cb637 | 934 | */ |
07126127 ID |
935 | if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags)) |
936 | return 0; | |
95ea3627 ID |
937 | |
938 | /* | |
07126127 | 939 | * Cleanup as much as possible. |
95ea3627 | 940 | */ |
95ea3627 | 941 | rt2x00lib_uninitialize(rt2x00dev); |
1682fe6d ID |
942 | |
943 | /* | |
944 | * Suspend/disable extra components. | |
945 | */ | |
a9450b70 | 946 | rt2x00leds_suspend(rt2x00dev); |
95ea3627 ID |
947 | rt2x00debug_deregister(rt2x00dev); |
948 | ||
949 | /* | |
9896322a ID |
950 | * Set device mode to sleep for power management, |
951 | * on some hardware this call seems to consistently fail. | |
952 | * From the specifications it is hard to tell why it fails, | |
953 | * and if this is a "bad thing". | |
954 | * Overall it is safe to just ignore the failure and | |
955 | * continue suspending. The only downside is that the | |
956 | * device will not be in optimal power save mode, but with | |
957 | * the radio and the other components already disabled the | |
958 | * device is as good as disabled. | |
95ea3627 | 959 | */ |
07126127 | 960 | if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP)) |
9896322a ID |
961 | WARNING(rt2x00dev, "Device failed to enter sleep state, " |
962 | "continue suspending.\n"); | |
95ea3627 ID |
963 | |
964 | return 0; | |
965 | } | |
966 | EXPORT_SYMBOL_GPL(rt2x00lib_suspend); | |
967 | ||
968 | int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev) | |
969 | { | |
95ea3627 | 970 | NOTICE(rt2x00dev, "Waking up.\n"); |
95ea3627 ID |
971 | |
972 | /* | |
1682fe6d | 973 | * Restore/enable extra components. |
95ea3627 ID |
974 | */ |
975 | rt2x00debug_register(rt2x00dev); | |
a9450b70 | 976 | rt2x00leds_resume(rt2x00dev); |
95ea3627 | 977 | |
e37ea213 ID |
978 | /* |
979 | * We are ready again to receive requests from mac80211. | |
980 | */ | |
0262ab0d | 981 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
e37ea213 | 982 | |
95ea3627 | 983 | return 0; |
95ea3627 ID |
984 | } |
985 | EXPORT_SYMBOL_GPL(rt2x00lib_resume); | |
986 | #endif /* CONFIG_PM */ | |
987 | ||
988 | /* | |
989 | * rt2x00lib module information. | |
990 | */ | |
991 | MODULE_AUTHOR(DRV_PROJECT); | |
992 | MODULE_VERSION(DRV_VERSION); | |
993 | MODULE_DESCRIPTION("rt2x00 library"); | |
994 | MODULE_LICENSE("GPL"); |