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 ID |
262 | rt2x00dev->link.qual.tx_success += |
263 | test_bit(TXDONE_SUCCESS, &txdesc->flags); | |
264 | rt2x00dev->link.qual.tx_failed += | |
cb14cb79 | 265 | test_bit(TXDONE_FAILURE, &txdesc->flags); |
95ea3627 | 266 | |
e6a9854b JB |
267 | rate_idx = skbdesc->tx_rate_idx; |
268 | rate_flags = skbdesc->tx_rate_flags; | |
269 | ||
181d6902 ID |
270 | /* |
271 | * Initialize TX status | |
272 | */ | |
e039fa4a JB |
273 | memset(&tx_info->status, 0, sizeof(tx_info->status)); |
274 | tx_info->status.ack_signal = 0; | |
e6a9854b JB |
275 | tx_info->status.rates[0].idx = rate_idx; |
276 | tx_info->status.rates[0].flags = rate_flags; | |
277 | tx_info->status.rates[0].count = txdesc->retry + 1; | |
278 | tx_info->status.rates[1].idx = -1; /* terminate */ | |
181d6902 | 279 | |
e039fa4a | 280 | if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
fb55f4d1 | 281 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) |
e039fa4a | 282 | tx_info->flags |= IEEE80211_TX_STAT_ACK; |
fb55f4d1 | 283 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 284 | rt2x00dev->low_level_stats.dot11ACKFailureCount++; |
95ea3627 ID |
285 | } |
286 | ||
e6a9854b | 287 | if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
fb55f4d1 | 288 | if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) |
181d6902 | 289 | rt2x00dev->low_level_stats.dot11RTSSuccessCount++; |
fb55f4d1 | 290 | else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) |
181d6902 | 291 | rt2x00dev->low_level_stats.dot11RTSFailureCount++; |
95ea3627 ID |
292 | } |
293 | ||
294 | /* | |
e039fa4a JB |
295 | * Only send the status report to mac80211 when TX status was |
296 | * requested by it. If this was a extra frame coming through | |
297 | * a mac80211 library call (RTS/CTS) then we should not send the | |
298 | * status report back. | |
95ea3627 | 299 | */ |
e039fa4a JB |
300 | if (tx_info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) |
301 | ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb); | |
baf26a7e | 302 | else |
fb55f4d1 | 303 | dev_kfree_skb_irq(entry->skb); |
d74f5ba4 ID |
304 | |
305 | /* | |
306 | * Make this entry available for reuse. | |
307 | */ | |
95ea3627 | 308 | entry->skb = NULL; |
d74f5ba4 ID |
309 | entry->flags = 0; |
310 | ||
798b7adb | 311 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 | 312 | |
0262ab0d | 313 | clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); |
d74f5ba4 ID |
314 | rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE); |
315 | ||
316 | /* | |
317 | * If the data queue was below the threshold before the txdone | |
318 | * handler we must make sure the packet queue in the mac80211 stack | |
319 | * is reenabled when the txdone handler has finished. | |
320 | */ | |
321 | if (!rt2x00queue_threshold(entry->queue)) | |
322 | ieee80211_wake_queue(rt2x00dev->hw, qid); | |
95ea3627 ID |
323 | } |
324 | EXPORT_SYMBOL_GPL(rt2x00lib_txdone); | |
325 | ||
35f00cfc ID |
326 | static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev, |
327 | struct rxdone_entry_desc *rxdesc) | |
328 | { | |
329 | struct ieee80211_supported_band *sband; | |
330 | const struct rt2x00_rate *rate; | |
331 | unsigned int i; | |
332 | int signal; | |
333 | int type; | |
334 | ||
335 | /* | |
336 | * For non-HT rates the MCS value needs to contain the | |
337 | * actually used rate modulation (CCK or OFDM). | |
338 | */ | |
339 | if (rxdesc->dev_flags & RXDONE_SIGNAL_MCS) | |
340 | signal = RATE_MCS(rxdesc->rate_mode, rxdesc->signal); | |
341 | else | |
342 | signal = rxdesc->signal; | |
343 | ||
344 | type = (rxdesc->dev_flags & RXDONE_SIGNAL_MASK); | |
345 | ||
346 | sband = &rt2x00dev->bands[rt2x00dev->curr_band]; | |
347 | for (i = 0; i < sband->n_bitrates; i++) { | |
348 | rate = rt2x00_get_rate(sband->bitrates[i].hw_value); | |
349 | ||
350 | if (((type == RXDONE_SIGNAL_PLCP) && | |
351 | (rate->plcp == signal)) || | |
352 | ((type == RXDONE_SIGNAL_BITRATE) && | |
353 | (rate->bitrate == signal)) || | |
354 | ((type == RXDONE_SIGNAL_MCS) && | |
355 | (rate->mcs == signal))) { | |
356 | return i; | |
357 | } | |
358 | } | |
359 | ||
360 | WARNING(rt2x00dev, "Frame received with unrecognized signal, " | |
361 | "signal=0x%.4x, type=%d.\n", signal, type); | |
362 | return 0; | |
363 | } | |
364 | ||
c4da0048 GW |
365 | void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, |
366 | struct queue_entry *entry) | |
95ea3627 | 367 | { |
c4da0048 GW |
368 | struct rxdone_entry_desc rxdesc; |
369 | struct sk_buff *skb; | |
95ea3627 | 370 | struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status; |
2bb057d0 | 371 | unsigned int header_length; |
9f166171 | 372 | bool l2pad; |
35f00cfc | 373 | int rate_idx; |
c4da0048 GW |
374 | /* |
375 | * Allocate a new sk_buffer. If no new buffer available, drop the | |
376 | * received frame and reuse the existing buffer. | |
377 | */ | |
378 | skb = rt2x00queue_alloc_rxskb(rt2x00dev, entry); | |
379 | if (!skb) | |
380 | return; | |
381 | ||
382 | /* | |
383 | * Unmap the skb. | |
384 | */ | |
385 | rt2x00queue_unmap_skb(rt2x00dev, entry->skb); | |
386 | ||
387 | /* | |
388 | * Extract the RXD details. | |
389 | */ | |
390 | memset(&rxdesc, 0, sizeof(rxdesc)); | |
391 | rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc); | |
95ea3627 | 392 | |
9f166171 ID |
393 | /* Trim buffer to correct size */ |
394 | skb_trim(entry->skb, rxdesc.size); | |
395 | ||
239c249d GW |
396 | /* |
397 | * The data behind the ieee80211 header must be | |
a9f853dd | 398 | * aligned on a 4 byte boundary. |
239c249d | 399 | */ |
2bb057d0 | 400 | header_length = ieee80211_get_hdrlen_from_skb(entry->skb); |
9f166171 | 401 | l2pad = !!(rxdesc.dev_flags & RXDONE_L2PAD); |
239c249d | 402 | |
2bb057d0 ID |
403 | /* |
404 | * Hardware might have stripped the IV/EIV/ICV data, | |
405 | * in that case it is possible that the data was | |
406 | * provided seperately (through hardware descriptor) | |
407 | * in which case we should reinsert the data into the frame. | |
408 | */ | |
74415edb | 409 | if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) && |
9f166171 ID |
410 | (rxdesc.flags & RX_FLAG_IV_STRIPPED)) |
411 | rt2x00crypto_rx_insert_iv(entry->skb, l2pad, header_length, | |
412 | &rxdesc); | |
413 | else | |
414 | rt2x00queue_payload_align(entry->skb, l2pad, header_length); | |
239c249d | 415 | |
95ea3627 | 416 | /* |
35f00cfc ID |
417 | * Check if the frame was received using HT. In that case, |
418 | * the rate is the MCS index and should be passed to mac80211 | |
419 | * directly. Otherwise we need to translate the signal to | |
420 | * the correct bitrate index. | |
95ea3627 | 421 | */ |
35f00cfc ID |
422 | if (rxdesc.rate_mode == RATE_MODE_CCK || |
423 | rxdesc.rate_mode == RATE_MODE_OFDM) { | |
424 | rate_idx = rt2x00lib_rxdone_read_signal(rt2x00dev, &rxdesc); | |
425 | } else { | |
426 | rxdesc.flags |= RX_FLAG_HT; | |
427 | rate_idx = rxdesc.signal; | |
866a0503 ID |
428 | } |
429 | ||
61af43c5 | 430 | /* |
84e3196f | 431 | * Update extra components |
61af43c5 | 432 | */ |
84e3196f ID |
433 | rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc); |
434 | rt2x00debug_update_crypto(rt2x00dev, &rxdesc); | |
69f81a2c | 435 | |
ae73e58e | 436 | rx_status->mactime = rxdesc.timestamp; |
35f00cfc | 437 | rx_status->rate_idx = rate_idx; |
84e3196f | 438 | rx_status->qual = rt2x00link_calculate_signal(rt2x00dev, rxdesc.rssi); |
c4da0048 | 439 | rx_status->signal = rxdesc.rssi; |
2bdb35c7 | 440 | rx_status->noise = rxdesc.noise; |
c4da0048 | 441 | rx_status->flag = rxdesc.flags; |
69f81a2c | 442 | rx_status->antenna = rt2x00dev->link.ant.active.rx; |
95ea3627 ID |
443 | |
444 | /* | |
181d6902 ID |
445 | * Send frame to mac80211 & debugfs. |
446 | * mac80211 will clean up the skb structure. | |
95ea3627 | 447 | */ |
5a6e5999 | 448 | rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb); |
181d6902 | 449 | ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb, rx_status); |
c4da0048 GW |
450 | |
451 | /* | |
452 | * Replace the skb with the freshly allocated one. | |
453 | */ | |
454 | entry->skb = skb; | |
d74f5ba4 ID |
455 | entry->flags = 0; |
456 | ||
798b7adb | 457 | rt2x00dev->ops->lib->clear_entry(entry); |
d74f5ba4 ID |
458 | |
459 | rt2x00queue_index_inc(entry->queue, Q_INDEX); | |
95ea3627 ID |
460 | } |
461 | EXPORT_SYMBOL_GPL(rt2x00lib_rxdone); | |
462 | ||
95ea3627 ID |
463 | /* |
464 | * Driver initialization handlers. | |
465 | */ | |
70e2fed4 ID |
466 | const struct rt2x00_rate rt2x00_supported_rates[12] = { |
467 | { | |
3d8606a6 | 468 | .flags = DEV_RATE_CCK, |
70e2fed4 | 469 | .bitrate = 10, |
aa776721 | 470 | .ratemask = BIT(0), |
70e2fed4 | 471 | .plcp = 0x00, |
35f00cfc | 472 | .mcs = RATE_MCS(RATE_MODE_CCK, 0), |
70e2fed4 ID |
473 | }, |
474 | { | |
3d8606a6 | 475 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 476 | .bitrate = 20, |
aa776721 | 477 | .ratemask = BIT(1), |
70e2fed4 | 478 | .plcp = 0x01, |
35f00cfc | 479 | .mcs = RATE_MCS(RATE_MODE_CCK, 1), |
70e2fed4 ID |
480 | }, |
481 | { | |
3d8606a6 | 482 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 483 | .bitrate = 55, |
aa776721 | 484 | .ratemask = BIT(2), |
70e2fed4 | 485 | .plcp = 0x02, |
35f00cfc | 486 | .mcs = RATE_MCS(RATE_MODE_CCK, 2), |
70e2fed4 ID |
487 | }, |
488 | { | |
3d8606a6 | 489 | .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE, |
70e2fed4 | 490 | .bitrate = 110, |
aa776721 | 491 | .ratemask = BIT(3), |
70e2fed4 | 492 | .plcp = 0x03, |
35f00cfc | 493 | .mcs = RATE_MCS(RATE_MODE_CCK, 3), |
70e2fed4 ID |
494 | }, |
495 | { | |
3d8606a6 | 496 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 497 | .bitrate = 60, |
aa776721 | 498 | .ratemask = BIT(4), |
70e2fed4 | 499 | .plcp = 0x0b, |
35f00cfc | 500 | .mcs = RATE_MCS(RATE_MODE_OFDM, 0), |
70e2fed4 ID |
501 | }, |
502 | { | |
503 | .flags = DEV_RATE_OFDM, | |
504 | .bitrate = 90, | |
aa776721 | 505 | .ratemask = BIT(5), |
70e2fed4 | 506 | .plcp = 0x0f, |
35f00cfc | 507 | .mcs = RATE_MCS(RATE_MODE_OFDM, 1), |
70e2fed4 ID |
508 | }, |
509 | { | |
3d8606a6 | 510 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 511 | .bitrate = 120, |
aa776721 | 512 | .ratemask = BIT(6), |
70e2fed4 | 513 | .plcp = 0x0a, |
35f00cfc | 514 | .mcs = RATE_MCS(RATE_MODE_OFDM, 2), |
70e2fed4 ID |
515 | }, |
516 | { | |
517 | .flags = DEV_RATE_OFDM, | |
518 | .bitrate = 180, | |
aa776721 | 519 | .ratemask = BIT(7), |
70e2fed4 | 520 | .plcp = 0x0e, |
35f00cfc | 521 | .mcs = RATE_MCS(RATE_MODE_OFDM, 3), |
70e2fed4 ID |
522 | }, |
523 | { | |
3d8606a6 | 524 | .flags = DEV_RATE_OFDM, |
70e2fed4 | 525 | .bitrate = 240, |
aa776721 | 526 | .ratemask = BIT(8), |
70e2fed4 | 527 | .plcp = 0x09, |
35f00cfc | 528 | .mcs = RATE_MCS(RATE_MODE_OFDM, 4), |
70e2fed4 ID |
529 | }, |
530 | { | |
531 | .flags = DEV_RATE_OFDM, | |
532 | .bitrate = 360, | |
aa776721 | 533 | .ratemask = BIT(9), |
70e2fed4 | 534 | .plcp = 0x0d, |
35f00cfc | 535 | .mcs = RATE_MCS(RATE_MODE_OFDM, 5), |
70e2fed4 ID |
536 | }, |
537 | { | |
538 | .flags = DEV_RATE_OFDM, | |
539 | .bitrate = 480, | |
aa776721 | 540 | .ratemask = BIT(10), |
70e2fed4 | 541 | .plcp = 0x08, |
35f00cfc | 542 | .mcs = RATE_MCS(RATE_MODE_OFDM, 6), |
70e2fed4 ID |
543 | }, |
544 | { | |
545 | .flags = DEV_RATE_OFDM, | |
546 | .bitrate = 540, | |
aa776721 | 547 | .ratemask = BIT(11), |
70e2fed4 | 548 | .plcp = 0x0c, |
35f00cfc | 549 | .mcs = RATE_MCS(RATE_MODE_OFDM, 7), |
70e2fed4 ID |
550 | }, |
551 | }; | |
552 | ||
95ea3627 ID |
553 | static void rt2x00lib_channel(struct ieee80211_channel *entry, |
554 | const int channel, const int tx_power, | |
555 | const int value) | |
556 | { | |
f2a3c7f5 | 557 | entry->center_freq = ieee80211_channel_to_frequency(channel); |
8318d78a JB |
558 | entry->hw_value = value; |
559 | entry->max_power = tx_power; | |
560 | entry->max_antenna_gain = 0xff; | |
95ea3627 ID |
561 | } |
562 | ||
563 | static void rt2x00lib_rate(struct ieee80211_rate *entry, | |
70e2fed4 | 564 | const u16 index, const struct rt2x00_rate *rate) |
95ea3627 | 565 | { |
70e2fed4 ID |
566 | entry->flags = 0; |
567 | entry->bitrate = rate->bitrate; | |
3ea96463 ID |
568 | entry->hw_value =index; |
569 | entry->hw_value_short = index; | |
70e2fed4 | 570 | |
3ea96463 | 571 | if (rate->flags & DEV_RATE_SHORT_PREAMBLE) |
70e2fed4 | 572 | entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE; |
95ea3627 ID |
573 | } |
574 | ||
575 | static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev, | |
576 | struct hw_mode_spec *spec) | |
577 | { | |
578 | struct ieee80211_hw *hw = rt2x00dev->hw; | |
95ea3627 ID |
579 | struct ieee80211_channel *channels; |
580 | struct ieee80211_rate *rates; | |
31562e80 | 581 | unsigned int num_rates; |
95ea3627 | 582 | unsigned int i; |
95ea3627 | 583 | |
31562e80 ID |
584 | num_rates = 0; |
585 | if (spec->supported_rates & SUPPORT_RATE_CCK) | |
586 | num_rates += 4; | |
587 | if (spec->supported_rates & SUPPORT_RATE_OFDM) | |
588 | num_rates += 8; | |
95ea3627 ID |
589 | |
590 | channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL); | |
591 | if (!channels) | |
8318d78a | 592 | return -ENOMEM; |
95ea3627 | 593 | |
31562e80 | 594 | rates = kzalloc(sizeof(*rates) * num_rates, GFP_KERNEL); |
95ea3627 ID |
595 | if (!rates) |
596 | goto exit_free_channels; | |
597 | ||
598 | /* | |
599 | * Initialize Rate list. | |
600 | */ | |
31562e80 | 601 | for (i = 0; i < num_rates; i++) |
8f5fa7f0 | 602 | rt2x00lib_rate(&rates[i], i, rt2x00_get_rate(i)); |
95ea3627 ID |
603 | |
604 | /* | |
605 | * Initialize Channel list. | |
606 | */ | |
607 | for (i = 0; i < spec->num_channels; i++) { | |
95ea3627 | 608 | rt2x00lib_channel(&channels[i], |
8c5e7a5f ID |
609 | spec->channels[i].channel, |
610 | spec->channels_info[i].tx_power1, i); | |
95ea3627 ID |
611 | } |
612 | ||
613 | /* | |
31562e80 | 614 | * Intitialize 802.11b, 802.11g |
95ea3627 | 615 | * Rates: CCK, OFDM. |
8318d78a | 616 | * Channels: 2.4 GHz |
95ea3627 | 617 | */ |
47ac2683 | 618 | if (spec->supported_bands & SUPPORT_BAND_2GHZ) { |
31562e80 ID |
619 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_channels = 14; |
620 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].n_bitrates = num_rates; | |
621 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].channels = channels; | |
622 | rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates; | |
623 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
624 | &rt2x00dev->bands[IEEE80211_BAND_2GHZ]; | |
35f00cfc ID |
625 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_2GHZ].ht_cap, |
626 | &spec->ht, sizeof(spec->ht)); | |
95ea3627 ID |
627 | } |
628 | ||
629 | /* | |
630 | * Intitialize 802.11a | |
631 | * Rates: OFDM. | |
632 | * Channels: OFDM, UNII, HiperLAN2. | |
633 | */ | |
47ac2683 | 634 | if (spec->supported_bands & SUPPORT_BAND_5GHZ) { |
31562e80 ID |
635 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_channels = |
636 | spec->num_channels - 14; | |
637 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].n_bitrates = | |
638 | num_rates - 4; | |
639 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].channels = &channels[14]; | |
640 | rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4]; | |
641 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
642 | &rt2x00dev->bands[IEEE80211_BAND_5GHZ]; | |
35f00cfc ID |
643 | memcpy(&rt2x00dev->bands[IEEE80211_BAND_5GHZ].ht_cap, |
644 | &spec->ht, sizeof(spec->ht)); | |
95ea3627 ID |
645 | } |
646 | ||
95ea3627 ID |
647 | return 0; |
648 | ||
8318d78a | 649 | exit_free_channels: |
95ea3627 | 650 | kfree(channels); |
95ea3627 ID |
651 | ERROR(rt2x00dev, "Allocation ieee80211 modes failed.\n"); |
652 | return -ENOMEM; | |
653 | } | |
654 | ||
655 | static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev) | |
656 | { | |
0262ab0d | 657 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
95ea3627 ID |
658 | ieee80211_unregister_hw(rt2x00dev->hw); |
659 | ||
8318d78a JB |
660 | if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) { |
661 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels); | |
662 | kfree(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->bitrates); | |
663 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; | |
664 | rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; | |
95ea3627 | 665 | } |
8c5e7a5f ID |
666 | |
667 | kfree(rt2x00dev->spec.channels_info); | |
95ea3627 ID |
668 | } |
669 | ||
670 | static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) | |
671 | { | |
672 | struct hw_mode_spec *spec = &rt2x00dev->spec; | |
673 | int status; | |
674 | ||
0262ab0d ID |
675 | if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags)) |
676 | return 0; | |
677 | ||
95ea3627 ID |
678 | /* |
679 | * Initialize HW modes. | |
680 | */ | |
681 | status = rt2x00lib_probe_hw_modes(rt2x00dev, spec); | |
682 | if (status) | |
683 | return status; | |
684 | ||
61448f88 GW |
685 | /* |
686 | * Initialize HW fields. | |
687 | */ | |
688 | rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues; | |
689 | ||
95ea3627 ID |
690 | /* |
691 | * Register HW. | |
692 | */ | |
693 | status = ieee80211_register_hw(rt2x00dev->hw); | |
f05faa31 | 694 | if (status) |
95ea3627 | 695 | return status; |
95ea3627 | 696 | |
0262ab0d | 697 | set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags); |
95ea3627 ID |
698 | |
699 | return 0; | |
700 | } | |
701 | ||
702 | /* | |
703 | * Initialization/uninitialization handlers. | |
704 | */ | |
e37ea213 | 705 | static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 | 706 | { |
0262ab0d | 707 | if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
708 | return; |
709 | ||
710 | /* | |
1682fe6d | 711 | * Unregister extra components. |
95ea3627 ID |
712 | */ |
713 | rt2x00rfkill_unregister(rt2x00dev); | |
714 | ||
715 | /* | |
716 | * Allow the HW to uninitialize. | |
717 | */ | |
718 | rt2x00dev->ops->lib->uninitialize(rt2x00dev); | |
719 | ||
720 | /* | |
181d6902 | 721 | * Free allocated queue entries. |
95ea3627 | 722 | */ |
181d6902 | 723 | rt2x00queue_uninitialize(rt2x00dev); |
95ea3627 ID |
724 | } |
725 | ||
e37ea213 | 726 | static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) |
95ea3627 ID |
727 | { |
728 | int status; | |
729 | ||
0262ab0d | 730 | if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags)) |
95ea3627 ID |
731 | return 0; |
732 | ||
733 | /* | |
181d6902 | 734 | * Allocate all queue entries. |
95ea3627 | 735 | */ |
181d6902 ID |
736 | status = rt2x00queue_initialize(rt2x00dev); |
737 | if (status) | |
95ea3627 | 738 | return status; |
95ea3627 ID |
739 | |
740 | /* | |
741 | * Initialize the device. | |
742 | */ | |
743 | status = rt2x00dev->ops->lib->initialize(rt2x00dev); | |
ed499983 ID |
744 | if (status) { |
745 | rt2x00queue_uninitialize(rt2x00dev); | |
746 | return status; | |
747 | } | |
95ea3627 | 748 | |
0262ab0d | 749 | set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags); |
95ea3627 ID |
750 | |
751 | /* | |
1682fe6d | 752 | * Register the extra components. |
95ea3627 | 753 | */ |
1682fe6d | 754 | rt2x00rfkill_register(rt2x00dev); |
95ea3627 ID |
755 | |
756 | return 0; | |
95ea3627 ID |
757 | } |
758 | ||
e37ea213 ID |
759 | int rt2x00lib_start(struct rt2x00_dev *rt2x00dev) |
760 | { | |
761 | int retval; | |
762 | ||
0262ab0d | 763 | if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
764 | return 0; |
765 | ||
766 | /* | |
767 | * If this is the first interface which is added, | |
768 | * we should load the firmware now. | |
769 | */ | |
9404ef34 ID |
770 | retval = rt2x00lib_load_firmware(rt2x00dev); |
771 | if (retval) | |
772 | return retval; | |
e37ea213 ID |
773 | |
774 | /* | |
775 | * Initialize the device. | |
776 | */ | |
777 | retval = rt2x00lib_initialize(rt2x00dev); | |
778 | if (retval) | |
779 | return retval; | |
780 | ||
6bb40dd1 ID |
781 | rt2x00dev->intf_ap_count = 0; |
782 | rt2x00dev->intf_sta_count = 0; | |
783 | rt2x00dev->intf_associated = 0; | |
784 | ||
0262ab0d | 785 | set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags); |
e37ea213 ID |
786 | |
787 | return 0; | |
788 | } | |
789 | ||
790 | void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev) | |
791 | { | |
0262ab0d | 792 | if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) |
e37ea213 ID |
793 | return; |
794 | ||
795 | /* | |
796 | * Perhaps we can add something smarter here, | |
797 | * but for now just disabling the radio should do. | |
798 | */ | |
799 | rt2x00lib_disable_radio(rt2x00dev); | |
800 | ||
6bb40dd1 ID |
801 | rt2x00dev->intf_ap_count = 0; |
802 | rt2x00dev->intf_sta_count = 0; | |
803 | rt2x00dev->intf_associated = 0; | |
e37ea213 ID |
804 | } |
805 | ||
95ea3627 ID |
806 | /* |
807 | * driver allocation handlers. | |
808 | */ | |
95ea3627 ID |
809 | int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) |
810 | { | |
811 | int retval = -ENOMEM; | |
812 | ||
8ff48a8b ID |
813 | mutex_init(&rt2x00dev->csr_mutex); |
814 | ||
6bb40dd1 ID |
815 | /* |
816 | * Make room for rt2x00_intf inside the per-interface | |
817 | * structure ieee80211_vif. | |
818 | */ | |
819 | rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf); | |
820 | ||
3514a441 ID |
821 | /* |
822 | * Determine which operating modes are supported, all modes | |
823 | * which require beaconing, depend on the availability of | |
824 | * beacon entries. | |
825 | */ | |
826 | rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
827 | if (rt2x00dev->ops->bcn->entry_num > 0) | |
828 | rt2x00dev->hw->wiphy->interface_modes |= | |
829 | BIT(NL80211_IFTYPE_ADHOC) | | |
a07dbea2 | 830 | BIT(NL80211_IFTYPE_AP) | |
ce292a64 ID |
831 | BIT(NL80211_IFTYPE_MESH_POINT) | |
832 | BIT(NL80211_IFTYPE_WDS); | |
f59ac048 | 833 | |
95ea3627 ID |
834 | /* |
835 | * Let the driver probe the device to detect the capabilities. | |
836 | */ | |
837 | retval = rt2x00dev->ops->lib->probe_hw(rt2x00dev); | |
838 | if (retval) { | |
839 | ERROR(rt2x00dev, "Failed to allocate device.\n"); | |
840 | goto exit; | |
841 | } | |
842 | ||
843 | /* | |
844 | * Initialize configuration work. | |
845 | */ | |
6bb40dd1 | 846 | INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled); |
4150c572 | 847 | INIT_WORK(&rt2x00dev->filter_work, rt2x00lib_packetfilter_scheduled); |
95ea3627 | 848 | |
95ea3627 | 849 | /* |
181d6902 | 850 | * Allocate queue array. |
95ea3627 | 851 | */ |
181d6902 | 852 | retval = rt2x00queue_allocate(rt2x00dev); |
95ea3627 ID |
853 | if (retval) |
854 | goto exit; | |
855 | ||
856 | /* | |
857 | * Initialize ieee80211 structure. | |
858 | */ | |
859 | retval = rt2x00lib_probe_hw(rt2x00dev); | |
860 | if (retval) { | |
861 | ERROR(rt2x00dev, "Failed to initialize hw.\n"); | |
862 | goto exit; | |
863 | } | |
864 | ||
a9450b70 | 865 | /* |
1682fe6d | 866 | * Register extra components. |
a9450b70 | 867 | */ |
84e3196f | 868 | rt2x00link_register(rt2x00dev); |
a9450b70 | 869 | rt2x00leds_register(rt2x00dev); |
1682fe6d | 870 | rt2x00rfkill_allocate(rt2x00dev); |
95ea3627 ID |
871 | rt2x00debug_register(rt2x00dev); |
872 | ||
0262ab0d | 873 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 874 | |
95ea3627 ID |
875 | return 0; |
876 | ||
877 | exit: | |
878 | rt2x00lib_remove_dev(rt2x00dev); | |
879 | ||
880 | return retval; | |
881 | } | |
882 | EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev); | |
883 | ||
884 | void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) | |
885 | { | |
0262ab0d | 886 | clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
066cb637 | 887 | |
95ea3627 ID |
888 | /* |
889 | * Disable radio. | |
890 | */ | |
891 | rt2x00lib_disable_radio(rt2x00dev); | |
892 | ||
893 | /* | |
894 | * Uninitialize device. | |
895 | */ | |
896 | rt2x00lib_uninitialize(rt2x00dev); | |
897 | ||
898 | /* | |
1682fe6d | 899 | * Free extra components |
95ea3627 ID |
900 | */ |
901 | rt2x00debug_deregister(rt2x00dev); | |
95ea3627 | 902 | rt2x00rfkill_free(rt2x00dev); |
a9450b70 ID |
903 | rt2x00leds_unregister(rt2x00dev); |
904 | ||
95ea3627 ID |
905 | /* |
906 | * Free ieee80211_hw memory. | |
907 | */ | |
908 | rt2x00lib_remove_hw(rt2x00dev); | |
909 | ||
910 | /* | |
911 | * Free firmware image. | |
912 | */ | |
913 | rt2x00lib_free_firmware(rt2x00dev); | |
914 | ||
915 | /* | |
181d6902 | 916 | * Free queue structures. |
95ea3627 | 917 | */ |
181d6902 | 918 | rt2x00queue_free(rt2x00dev); |
95ea3627 ID |
919 | } |
920 | EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev); | |
921 | ||
922 | /* | |
923 | * Device state handlers | |
924 | */ | |
925 | #ifdef CONFIG_PM | |
926 | int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state) | |
927 | { | |
95ea3627 | 928 | NOTICE(rt2x00dev, "Going to sleep.\n"); |
066cb637 ID |
929 | |
930 | /* | |
07126127 | 931 | * Prevent mac80211 from accessing driver while suspended. |
066cb637 | 932 | */ |
07126127 ID |
933 | if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags)) |
934 | return 0; | |
95ea3627 ID |
935 | |
936 | /* | |
07126127 | 937 | * Cleanup as much as possible. |
95ea3627 | 938 | */ |
95ea3627 | 939 | rt2x00lib_uninitialize(rt2x00dev); |
1682fe6d ID |
940 | |
941 | /* | |
942 | * Suspend/disable extra components. | |
943 | */ | |
a9450b70 | 944 | rt2x00leds_suspend(rt2x00dev); |
95ea3627 ID |
945 | rt2x00debug_deregister(rt2x00dev); |
946 | ||
947 | /* | |
9896322a ID |
948 | * Set device mode to sleep for power management, |
949 | * on some hardware this call seems to consistently fail. | |
950 | * From the specifications it is hard to tell why it fails, | |
951 | * and if this is a "bad thing". | |
952 | * Overall it is safe to just ignore the failure and | |
953 | * continue suspending. The only downside is that the | |
954 | * device will not be in optimal power save mode, but with | |
955 | * the radio and the other components already disabled the | |
956 | * device is as good as disabled. | |
95ea3627 | 957 | */ |
07126127 | 958 | if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP)) |
9896322a ID |
959 | WARNING(rt2x00dev, "Device failed to enter sleep state, " |
960 | "continue suspending.\n"); | |
95ea3627 ID |
961 | |
962 | return 0; | |
963 | } | |
964 | EXPORT_SYMBOL_GPL(rt2x00lib_suspend); | |
965 | ||
966 | int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev) | |
967 | { | |
95ea3627 | 968 | NOTICE(rt2x00dev, "Waking up.\n"); |
95ea3627 ID |
969 | |
970 | /* | |
1682fe6d | 971 | * Restore/enable extra components. |
95ea3627 ID |
972 | */ |
973 | rt2x00debug_register(rt2x00dev); | |
a9450b70 | 974 | rt2x00leds_resume(rt2x00dev); |
95ea3627 | 975 | |
e37ea213 ID |
976 | /* |
977 | * We are ready again to receive requests from mac80211. | |
978 | */ | |
0262ab0d | 979 | set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); |
e37ea213 | 980 | |
95ea3627 | 981 | return 0; |
95ea3627 ID |
982 | } |
983 | EXPORT_SYMBOL_GPL(rt2x00lib_resume); | |
984 | #endif /* CONFIG_PM */ | |
985 | ||
986 | /* | |
987 | * rt2x00lib module information. | |
988 | */ | |
989 | MODULE_AUTHOR(DRV_PROJECT); | |
990 | MODULE_VERSION(DRV_VERSION); | |
991 | MODULE_DESCRIPTION("rt2x00 library"); | |
992 | MODULE_LICENSE("GPL"); |